2009年1月18日星期日

Padayani


Geographical Spread
It is predominantly seen in South Central parts of Kerala, known as the Central Travancore; mainly in Pathanamthitta district and the neighbouring districts viz Kottayam, Alappuzha and Kollam.
Pathanamthitta is the motherland of The Padayani.

Legend
The word padayani literally means military formations or rows of army, but in this folk art we have mainly a series of divine and semi-divine impersonations wearing huge masks or kolams of different shapes, colours and desingns painted on the stalks of arecanut fronds.

Padyani - At Thazhoor Bhagavathy Temple at Vazhamuttom near Pathanamthitta

Thazhoor Bhagavathy Temple - View from Thazhoor bridge

Padayani - Thazhoor Bhagavati Temple at Vazhamuttom near Pathanamthitta

Another Photograph of Thazhoor Padayani
The Padayani is dedicated to the Goddess Bhadrakaali. The Padayani is a marvellous combination of music, dance, painting and satire. The Padayani is conducted during the Malayalam Calendar months of Kumbham, Meenam and Medam (The English months of February, March and April).
Kadammanitta Devi Temple and Thazhoor Bhagavathy Kshetram(Temple) at Vazhamuttom near Pathanamthitta are famous for the annual Padayani Performances.
Padayani is the annual ritualistic festival celebrated in Bhadrakali temples of Central travancore zone with due dedications. It may be regarded as the remains of ancient Dravidian God concept and mode of worship offering Rathi (lust), Raktham (Blood) and Lahari (toxic mood) The very spirit of central travancore finds its appearance in Padayani as that of Malabar in Theyyam. All the Sixty Four art forms play their own vital role in Padayani. Actully this is a combination of music, dance , painting, satire etc. Padayani reflects the ancient socialist society before Aryanization and four caste system. So in Padayani all the villagers take active part without racial discriminations. Each and every Padayani Karappuram (centers or village celebrating Padayani) observe padayani in their own way. In different aspect such as observation of rituals, order of performance and span of Padayani days difference noticed is of course very huge.
Padayani is celebrated during the months of Kumbham, Meenam, Medam ( Approximately February, March and April) Kolamezhuthu, Kolamthullal, Kolappattu, Thappumelam, Vinodam (satire) are the essential parts of Padayani. Kolams are folk deities drawn on well processed green areca leaf sheath with natural colours. Kolappattu (lyrics) includes prayers, admirations and requests to deities. Thappu is the ‘Asuravadya’ made by covering round frame of Jacktree hardwood with buffalohide. Kolamthullal is the rhythmic footsteps and dances that a performer makes in tune with Kolappattu and Thappumelam. Vinodam includes satire and protest targeting social evils and vanities. Bearing Palakkolam singing Kolappatu, dancing with the thalam of thappu , the whole villagers pray to God to bring in prosperity, to eradicate the ill effects of wicked deities, to ensure goodies from crops and so on. It is a way of worship with no intermediary between man and God. Further, we find true man leading eco-friendly life, worshipping nature disregard of the philosophy of exploitation

Padayani in Mythology
According to Hindu mythology, evolution of Padayani is as follows: Asura Darika delighted Lord Brahma through his hard practice of penance and gained blessings from him. According to this blessing, he would be killed only by a women. Darika went on with his atrocities. Failing to defend the wickedness of Darika, Devas approched Lord Shiva with their complaints. Hearing the wickedness of Darika, Lord shiva kindled with anger and opened his third eye bursting out fire. It is from this third eye, that kaali took her birth. Accepting the request of ‘Devas’ and obeying the instruction of her own father Shiva, Kaali left for the abode of Darika mounting herself on Vethal accompanied by ‘Koolee Ganam’. Fight between Darika and Kaali was really frightening . In the end Kaali cut off his head. Holding head in her hand and with overwhelming anger she returned to Kailasam. To pacify her and to satisfy her lust for blood, Devas consulting lord Shiva performed variety entertainments like dances, mimicry, dialogues, comedies etc. But all there attempts were in vain. As she was going to the inner apartment through the Gopura paused a while seeing the painting depicted angry Kaali. A smile appeared on her face. She asked her father "who drew this?". Shiva answered, This was drawn by Kurup’ (Kurupu Kurichu"). She glanced at the Kalam(Painting) once more and burst into laughter. Attempts made by Lord Shiva and his Bhoothagana to pacify and delight kaali are imitated as such in Padayani celebration. Even today kalamezhuthum Pattum is strictly conducted in Kaali temples with it own ritualistic originality. Kurup (a caste) draws the kalam even now.
As the people promised to offer their own blood, kaali became quiet and delighted. Padayani is celebrated annually for the protection and prosperity of both village and villagers.

Introductory steps of Padayani

Kalamezhuthum Pattum
Kalamezhuthum Pattum is nothing but a Dravidian way of worship. It is believed that lord subrahmanya drew the most fearful form of kaali for the first time. ‘who did draw this ? Kaali asked lord Siva. Siva answered Kurup drew this. Even today Bhadrakaali form is drawn using ‘Panchavarnappodi’ (five types of natural colour powders) by members of the race kurup. Kaali figure thus drawn has sword, Sharp knife, Arrow, bow, Chakram and gada in hands. Number of hands vary as four, eight, sixteen, thirty two, sixty four and so on. Eighteen colour shades are applied in kalamezhuthu, using panchavarnapodi and their combinations. Red colour can be created by mixing equal quantities of lime powder and turmeric powder. Rice powder, Vakayila powder, charcoal are used to prepare white, green and black colours respectively. There are folk techniques and calculations for the preparation of these colour powders, maintaining right proportion in colour combination and for deciding the quantity of colour powders to be taken for each Kalam in accordance with their size. With thumb and forefinger powder is taken and is then made fall through finger spaces to draw figures in the Kalam.
Kalamezhuthu, Pattu and Kuruthy are the introductory steps of padayani. Kalamezhuthu is done on Tuesday or Friday just prior to the village visit (Paraykkezhunnallipp) of Devi. Paraykkezhunnallippu generally commences on Aswathy, Bharani or Karthika day customarily. A ritualistic function Kuruthy is there seen associated with Kalamezhuthu. In olden days blood was offered in Kuruthy. After Aryanization, instead blood Aratham red coloured solution consisting lime and turmeric, is seen offered in kuruthy. Offerings of velichappadu, mouth piece of Devi, is an important ritual in kuruthy. In some places Oorali, person belonging to Kurava race, performs this pooja in place of velichappadu. In some places Oorali thullal ( a certain type of footsteps by oorali) is regarded as the first step of padayani.

Paraykkezhunnallippu
Devi, the village deity, visits the houses in a procession, seating herself on a Jeevatha accompanied by beating of Chenda and multicoloured decorated umbrellas. Thus she observes both the prosperity and poverty of her off springs. Villagers receive Devi with Nirapara or Anpoli. In some houses, people accompanying Devi will be properly entertained with feasts or sweets. Showering graces on villagers, taking steps with Pancharimelam, Devi finds her way back to the temple finishing Paraykkezhunnallippu extending several days.

Choottu Veyppu
This is the first step of Padayani. Each Padayanikkarappuram has its own traditional way of Choottuveyppu. Choottu lighted from the lamp in the Sreekovil by the Poojari (temple priest) is handed over to the Oorazhmakkaran. People with Kurava and arppuvili accompany him. After Performing Pradakshinam, this lighted Choottu will be placed at the Meenathemoola (South western corner) of the temple. Tail end of coconut leaves(Thunchani) made in to a bundle is called choottu. After choottuveypu masters of Padayani (Padayani Ashanmar) beat Ganapathy and padivattam on warmed Thappu. There will be frequent Kathinavedi in the course of Thappu beating. Padayani calls out Devi with loud ‘Eee-hoo’ sounds. This is actually an invitation to Devi to witness Padyani. This function is called Vilichirakkal, Kottivilikkal or Pachathappum Kaimaniyum in certain places. After 3 hours since sunset. Veekan chenda is beaten in a particular rhythm and a howling sound is made around the kavu. Awaking Pishachu (Pishachine Unarthal) is the name given to this step of Padayani.

Padayani

Thappumelam, Valyamelam, Kappoli
After certain days since Choottuveypu, Padayani commences. In some places Padayani begins with Thappumelam but in some other places is with Valyamelam. The system of valyamelam is very rare now. Kappoli is at the climax kalayam of melam. Padayanikkalam is situated at the very front of Kshethranada (temple entrance). Men holding leafy twigs and sounding aarpuvili leap forward to the kalam from either sides and perform dances. At the same time already prepared Kolams are brought in procession to the Kalam in the light of lighted choottu kattas, accompanied by chendamelam and arppuvili. This is called eduthuvaravu, In tune with this melam, kolam performs kappoli. There will be Kathinavedi very frequently during Eduthuvaravu. After Ganapathi and Padivattom kolams go round the temple and finally come to the Kalam. Then the kolam artists place kolams there in the Padayanikkalam.

Thavadi
Footsteps taken with expertise in body movement following the rhythm of melam. Hand movements or gestures have no much importance in Thavadi. The main performer moves in front taking steps and sounding kaimani. Others follow him dancing in three folds.

Pannathavadi
On either side of the Thavadi dancers, people appear with false face masks holding models of chenda, Thappu and kaimani and take comic steps defectively imitating thavadi dancers. This performance is called Pannathavadi. It is regarded as a protest of people who were expelled from padayani consequent on their failure in attaining the artistic standard or real thavadi.

Velichappadu
After thavadi, Velichappadu, a comedy form makes its appearance. In certain padayani grounds Velichappadu appears even before Thavadi. Next performance is Paradeshi, In an age lacking press or electronic media news were brought to the villages through ‘Paradeshis’. Comedy items enjoy more importance in Kurampala Padayani than that in other places. After the comedy items Kolams occupy the kalam. Kuthira, Ganapathi, Ganapathi Pishachu, Marutha, Madan, Yekshi, Kalan, Bhairavi. This is the order of performance generally. One important kolam each comes to the kalam each day. But in many places, system of Koottakkolam (Conducting the performance of a group of kolams in a might) is seen followed.

Adavi
Adavi is the most important ritualistic function of Padayani which runs for several days. Routine ritualistic performances will be there on adavi day too. In addition, comedy forms such as Seethankan thullal and Vairavi and special ritualistic functions such as Panayadi, Chat will be there. Adavi is generally on the third, sixth or the ninth day since the commencement of Ezhuthi thullal. There will be a special panthal (stage with roof) for adavi. Triangular shaped Adavikkodu are made with ‘Palakkampu’ (Stick cut taken from a tree named paala) and leafy twigs. In front of each koodu, there will be a wooden block. A person stands near the Panayorukku(Things arranged for Pana) with a Panakkutty one side of which is made hollow. Velan begins Parakottichattu. The atmosphere is made uproarious with Aarpuvili and Kathinavedi. The person holding Panakkutty gets possessed and walks round the Panayorukku. After making three such rounds he calls out aloud standing at the temple entrance. At this time another possessed person making roaring sound reaches Adavikkalam with quick running steps. The person who prepares himself with Katina Vratha (hard fast routines imposed on the self) to perform Panayadi will surely reach Adavipanthal for the purpose even if he is buried under ground, putting huge stones on flat wood block placing on the earth above him.
This person walks around panayorukku and receives himself the Panakkutty while making each round, he breaks one tender coconut each hitting on the wooden block. A single hitting is allowed for each coconut. If the coconut is not broken in a single hitting, it is regarded as an ill omen. In his way, he should break all the tender coconuts placed in the panthal.

Adavi at Kurampala
Adavi at Kurampala Devi Temple is performed once in five years. Adavi performed here has some special features. Adavi performance is on the ninth day of padayani. In the morning villagers reach the temple and make round with uprooted coconut palm, Areca palm, Thorny cane etc. This ritualistic observation is called ‘Thengu, Pana, chooral Kalippikkal’. Padayani begins at seven in the evening. Seethankan thullal, Vairavi etc. are staged. By midnight Velichappadu, honorably titled here Valiyachan, begins Pana beating . Velan begins Parachattu at the Moolasthanam.. After Panabeating, Valiyachan gives holly ashes to devotees. Devotees thus received holly ashes travel to far off places and bring thorny canes uprooted. Rolling themselves in the thorny canes the devotees traverse the whole path around the temple. Finally the devotee rolled in cane will be lifted and removed from the Kalam. Cane covering his body will be cut removed. The blood from the wounds is supposed to have offered to kaali. This ancient way of worship resembles ‘Narabali’ (human sacrifice) in its spirit. Temple premises will be empty on the following day. Temple ground is supposed to be the playground of wicked deities on that day.

Azhiyazhikkal, Adavi Uyarthal (in Kottangal)
As the flame rises in the ‘Aazhikkalam’ and sound of conch rises three times amidst Adavi vili villagers rush to the kalam with Karimpana, Areca Palm, Bamboo, Banana, Mango tree etc. to extinguish the flame. After doing this trees are planted there. Then the ground resembles a small forest. People climb up these trees and break the branches including small twigs. At the same time a huge flame is made burning bundles of dry coconut leaves. As the fire extinguishes, plants are felled down and removed from the Kalam thus adavi comes to an end.

Valiya Padayani
Vallya Padayani is conducted on the day which is regarded by the villagers as the dearest one for the most helpful animal for people enraged in farming activities is bullock. Models of bullocks created and are Devi brought everywhere in the village in procession. Neighboring villagers are duly received and honoured. Thus are some common observations related to Vallya padayani.

Pooppada
This is to eradicate Gandharva badha from virgin girls. Dance of Gandharvan Kolam is seen staged in some places. Piniyal holds the Arecanut inflorescence, Maranpattu is sung. The whole observation is done in an atmosphere of aarpu, kurava etc. Comedy item, Kaniyan Purappadu is also performed along with pooppada.

Nayattum Padayum
It is performed on the day following Adavi. Animals rushing to the cultivated field were once driven away with the help of dog and by lighting flames. Nayattum Padayum (Hunting and army) can be considered as the imitation of this practice. Ayyappa charitham ( story of Lord ayyappa) is sung in Nayattum Padayum. Pulikkolam(tiger), naykkolam (dog), Karadikkolam (bear) etc. are associated with this item.

Mangalakkolam
Mangalakkolam comes on Vallya Padayani day which is otherwise called Nirthu Padeni. When all kolam finish their performance on Vallya padeni day, it will be day break. Mangalakkolam beg pardon kavilamma for the faults and foibles that might have happened while staging padayani. Bhairavi and Kanjiramala are often regarded as Mangalakolam. Dance of Mangalakkolam comes to an end only after day break. After that samarppana gadyam is chanted and kolam mask is removed.
In Kurampala Padayani, after the performance of Bhairavi, all the wicked deities are attracted and favoured showing a black hen. Then they are led to the chiramudi along with the kolam. Chiramudi is a place with a plenty of pineapple plants, Ilanji trees, Yakshippana, Pala trees etc. Karinkozhi (black hen) is offered in bali cutting by its neck. Mannan performs some magic rituals. Then the kolam is hung on a Palamaram. Without looking back, all leave chiramudi.

Chattathekkolam (at Othera Kolam on the frame)
This kolam comes after Mangalakkolam. This kolam, as its name suggests, is mounted on a chattam, a wooden platform on wheels. To each face of this kolam, there will be a lighted torch and a bell. This is otherwise called Ayiramaniyan Kolam (Kolam with thousand bells). This kolam is cut made from thousand areca leaf sheaths. Chattathekkolam is performed only associated with Othara Padayani.

Neelam Peroor Pooram Padayani
Pally Bhagavathi Temple, Neelamperoor has a history of about 1700 yrs and it is one of the few relics of the Buddhist culture in Kerala. The principal deity of the temple is Goddess VanadurgaThe festivals of the temple are two in number- the ten day festival in the solar month meenam with its ninth day falling on pooram and the pooram padayani which starts from the day next to Thiruvonam in Chingam ( the first solar month of the Keralite calendar ) and lasts till Pooram, the birth day of the deity
The festival Pooram Padayani of this temple is a rare and unparalleled phenomenon because it represents a synthesis of the Buddhist and Hindu cultures. It is strikingly similar to the Buddhist festival seen by Fahiyan, the Chinese traveler in Padaliputra (Patna in Bihar). It also resembles the ceremonies held in Sreemoolavarom which was once a budhist centre in Kerala,. The Pooram Padayani is characterised by the display of exquisitely decorated effigies of Swans, Bhima, Ravana, Yakshi,Elephant etc. These are offerings in gratitude by devotees for the fulfillment of their desires. Making of these effigies need consummate craftsmanship. About one lac rupees is needed for the construction of Big Swan. The cost of conducting a padayni is shooting up year by year and the organisers are facing huge problems in mobilising the required funds. Donations made by the local people and various organisations are the main source of receipts for meeting the expenditure.
Padayani begins at 10 p.m on the avittam day with prayers. Flames are received from the priest. With this flames devotees set fire to the bundles of coconut leaves. With these bundles in hand they move to the monument of Cheraman perumal at the western side. After receiving his symbolic sanction, they start padayani. This continues for the first four days. The next four days are characterised by Kudapadayani which consists of floral decorations on umbrella-shapes made from the stems of coconut leaves. From the eighth day to twelfth effigies made out of green leaves of jackfruit trees are offered. The effigies displayed for the twelfth day are made of the fibrous stem of plantains or slender leaves of coconut stems. The last two days are characterised by the display of swans (Annams) which are made of plantain stems and slender leaves of coconut trees with floral decorations. The highlight of the days is of course the offering of the big swan to propitiate the deity.
On the final day a smith breaks a coconut and turns it round. On the basis of this he makes some predictions. The temple closes at 10 P.M and then starts what is known as Kudampooja. The padayani is characterised by Thothakali, a rhythmic dance in accordance with songs from the folklore and the beating of the drums. Devotees arrange themselves round the big fire at the centre twirling small clothes in an artistic pattern and dance. Spectators from different parts of the country throng to the place to see this rare artistic form. The most spectacular of all is the display of the BIG SWAN which is about 45 feet high. Other swans and fully decorated effigies enhance the beauty of the seen.
When the padayani is over, people disperse in different directions. The gurusi offered by a specially chosen devotee who has undergone austeries for several days with penance and meditation (matter (neelamperoor) from Temple web)

Ponadu Choottu Padayani
This is the annual festival at the ancient Bhagavathy Temple in Meenachil taluk. Bunches of dry palm fronds (chootu) are lit and carried in procession around the temple before the performances. Padayani performers then hit each other with the burning chootu.
Padayani at each place has its own special features. Even the rituals vary much as we move from one village to the other. In places Velichappadu appears in the kalam after all ritualistic performances. In some places Kuruthy takes places after padayani. Appearance of Konan, a comedy character, after the Kalamozhiyal of kolam, the system of singing Devi worship songs by people in the tune of ‘Vanchippattu’, Pakal Padayani ( Padayani during day time) on Pathamudayam Day (Medam 10th) without kolam performance, Thattummekkali with songs of Lord Shiva staging on Kalatthattu Parayan thullal, Seethankan thullal, Aattakkoppu, Kalamezhuthu, Aapinteem Vilakkum, Sending back Devi after Padayani (Kottikkettal), Foretelling matter on the basis of the signs seen on cutting coconut and thus go on the variations in Padayani in various padayani villages. Above descriptions account for all such variations in additions to the common features of Padayani.

Vardo (gypsy wagon)

Romanichal Wagons (vardo)
A vardo is a traditional horse-drawn wagon used by English Roma people (gypsies). The design of the vardo included large wheels running outside the body of the van, which slopes outwards considerably towards the eaves. Originally Romnichals would travel on foot, or with light, horse-drawn carts, typical of other Roma groups or would build "bender" tents - so called because they were made from supple branches which they bent inwards to support a waterproof covering. These tents are still favoured by New Age Travellers groups.

History
Wagons as a form of living accommodation (as opposed to carrying people or goods): Undecorated wagons were first used in France in 1810 by non-Romany circus troupes. Large transport wagons combined storage space and living space into one vehicle, and were pulled by teams of horses. By the 1800s wagons became smaller, reducing the number of horses required, and around the mid- to late-nineteenth century (1840-1870), Romnichals in Britain started using wagons that incorporated living spaces on the inside, and characteristically made them their own. There is a description of the vardo in the work of Charles Dickens, who described Mrs. Jarley's van with its bed, stove, closet or larder and several chests The Old Curiosity Shop ch. xxvii):
'One half of it... was carpeted, and so partitioned off at the further end as to accommodate a sleeping-place, constructed after the fashion of a berth on board ship, which was shaded, like the windows, with fair white curtains... The other half served for a kitchen, and was fitted up with a stove whose small chimney passed through the roof. It also held a closet or larder, several chests, a great pitcher of water, and a few cooking-utensils and articles of crockery. These latter necessaries hung upon the walls, which in that portion of the establishment devoted to the lady of the caravan, were ornamented with such gayer and lighter decorations as a triangle and a couple of well-thumbed tambourines.'
These smaller wagons were called "vardo" in the Romany language (originating from the Iranian word vurdon) for cart.The Romany vardo evolved into some of the most advanced forms of travelling wagon, and are prized for their practicality as well as esthetic design and beauty. There is no more iconic or recognisable Romany symbol than a highly decorated Romanichal vardo, and the time of its use is often affectionately called "the wagon time" by Romanichal travellers. The vardos were typically commissioned by families or by a newlywed couple from specialist coach builders. Building the vardo took between six months to a year; a variety of woods including oak, ash, elm cedar and pine were utilised in its construction. Prized by the Romany, and later by non-Romany, including other traveller groups, for their practicality as well as esthetic beauty, vardos can be categorised into six main styles; these being the Brush wagon, Reading, Ledge, Bow Top, Open lot and Burton. The general design evolved over time and were named after the home's owners, as in (Brush), for their traditional style (Ledge), for the town of its construction (Reading), or for the name of the builder.

Burton wagon
Popular with Romany gypsies, as well as Showmen families, and circus people, the Burton wagon is the oldest example of of a wagon used as home in Britain. Originally, with its undecorated van, the Burton wagon evolved into an elaborate Romany vardo, but due to its smaller wheels it was not suited for off-road use.

Brush wagon
The Brush or fen wagon as it was also known, consists of a standard Romany vardo, with straight sides and the wheels located outside the body. The Brush was similar in construction to the Reading vardo, but unlike other styles, the brush wagon had two distinct features: a half-door with glazed shutters, located at the back of the vardo, with a set of steps, both set around the opposite way from other wagons and lacked the mollycroft (skylight) on the roof. The exterior is equipped with racks and cases fitted on the outside frame and chase of the wagon allowing the owner to carry trade items like brushes, brooms, wicker chairs and baskets. Additionally, three light iron rails ran around the entire roof, and sometimes trade-name boards, used for stowing bulkier goods. The wagons were elaborately and colourfully painted.


Romanichal Reading Vardo early 20th century
The Reading or kite wagon, so named due to its straight sides that slopes outwards towards the eaves, high arched wheels, and relative light weight, there is no other vardo that epitomises the golden age of Romany horse travel. Dating from (1870) and synonymous with the original builder Dauton and Sons of Reading where the vardo takes its name. The wagon was highly prised by the Romanies for its aesthetic design, beauty and practicality to cross fords, pull off road and over rough ground, something smaller wheeled wagons like the Burton were unable to do. The Reading wagon is 10 feet long, with a porch on the front and back. The rear wheels were 18 inches larger than the ones on the front. At the start of the twentieth century the design incorporated raised skylights, On either side of the bed space, quarter-inch thick bevelled mirrors were common, and were lavishly decorated. Cupboards and locker seats were built in to prevent movement whilst travelling. Side and back windows were decorated and shuttered, and the body of the vardo itself would have originally been made from beaded tongue-and-groove matchboard, painted red picked out in yellow and green. As with other vardo, the extent of the elaborate decoration reflected the wealth of the family, boasting carved lion heads and gargoyles, these would have been painted gold or extensively decorated with gold leaf. Today, surviving Reading wagons are prized exhibits in museums or private collections.

Ledge wagon
The characteristic design of the ledge or cottage shaped wagon incorporated a more robust frame and living area that extended over the large rear wheels of the wagon. Brass brackets supported the frame of the wagon and solid arched roof usually 12 feet high, extended over the length of the wagon to form porches at either end and panelled with tongue in groove boards. The porch roof was further supported by iron brackets, and the walls were highly decorated with ornate scrollwork and carvings across the length of the wagon.

Bow Top
Based on the basic design of the Ledge wagon, the Bow Top is significantly lighter, and less likely to turn over in a strong wind. The design incorporated a light weight canvas top, supported by a wooden frame. A design reminiscent of the older “bender tents” used by the Romanichal.Both back and front walls of the wagon were decorated in scrollwork and tongue and groove and the wagon was coloured green to be less noticeable in a wood. The inside of the Bow Top also contained the same high scrollwork or Chenille fabric, with a stove, table and double bed.

Open lot
Almost identical in size and construction of the Bow Top wagon, the Open lot or Yorkshire Bow featured the same design but with a curtain instead of the door characteristic of other wagons. The wagon's entrance was covered by a curtain for privacy.

Decoration and Painting

Door carving of a traditional Romanichal Chiriklo bird. Reading Vardo early 20th century
Vardos were elaborately decorated, hand carved and ornatly painted with traditional Romany symbols. Romanichal would participate in the ornate carving and decoration, being skilled woodcarvers themselves, but would leave the main construction to a professional specialised coach builder.
Much of the wealth of the vardo was on display in the carvings, paintings incorporated aspects of the Romany lifestyle, including horses, birds, lions, griffins, floral designs, and vinework including elaborate scrollworking heightened by the extensive use of between 4-15 books of gold leaf applied as decoration. Each individual maker was identified by their particular designs.

Funeral rites
The Romanichal funeral rite during the wagon time of the 19th and 20th century, included burning the wagon and belongings after the owners death. The custom was that nothing whatsoever would have been sold, preferring to leave some possessions; jewellery, china or money to the family, the rest including the wagon was destroyed.

Modern Traditional use
The Romany travellers in the (1920s) proudly clung to their decorative vardos, although the economics of their way of life was in upheaval due to the contraction in the horse-trading industry and the changes from their traditional crafts. In the present day, Romnichals are more likely to live in caravans. However the tradition does survive and it is estimated that 1% of Romany travellers still live in the traditional horse drawn vardo.

Other Uses
The famous British writer Roald Dahl acquired a traditional Vardo in the 1960s, which was used as a playhouse for his children; later he used the vardo as a writing room, where he wrote Danny the Champion of the World.



composite safety shoes


Neck Heat Massager


embroidered luggage tags


Rubber Bath Mat


Outdoor Resin Furniture


white wave granite


cordless car polisher


Wall-Mounted Air Conditioner


Metal Mesh Handbag


RJ45 Cable Tester


Plastic Cake Containers


industrial quilting machine


cotton beach towel


flat poly bags


Hydraulic Truck Crane


Bw CCD Camera


Modified Potato Starch


natural beta carotene


Foam Roller Cover


rimless eye glasses


Wooden Beaded Curtain


bamboo lamp shades


Strong Satellite Receiver


battery-operated led light


brush cosmetic kit


tissue roll holder


Feed Through Capacitors


Roller Blinds Bamboo

Glasses



History of eyeglasses

Detail of a portrait of Hugh de Provence, painted by Tomaso da Modena in 1352
The earliest historical reference to magnification dates back to ancient Egyptian hieroglyphs in the 8th century BC, which depict "simple glass meniscal lenses". The earliest written record of magnification dates back to the 1st century AD, when Seneca the Younger, a tutor of Emperor Nero, wrote: "Letters, however small and indistinct, are seen enlarged and more clearly through a globe or glass filled with water". Emperor Nero is also said to have watched the gladiatorial games using an emerald as a corrective lens.Corrective lenses were said to be used by Abbas Ibn Firnas in the 9th century, who had devised a way to produce very clear glass. These glasses could be shaped and polished into round rocks used for viewing and were known as reading stones. The earliest evidence of "a magnifying device, a convex lens forming a magnified image," dates back the Book of Optics published by Alhazen in 1021. Its translation into Latin in the 12th century was instrumental to the invention of eyeglasses in 13th century Italy.Sunglasses, in the form of flat panes of smoky quartz, protected the eyes from glare and were used in China in the 12th century or possibly earlier. However, they did not offer any corrective powers.
Invention of eyeglasses

The 'Glasses Apostle' by Conrad von Soest (1403)
Around 1284 in Italy, Salvino D'Armate is credited with inventing the first wearable eye glasses



The earliest pictorial evidence for the use of eyeglasses, however, is Tomaso da Modena's 1352 portrait of the cardinal Hugh de Provence reading in a scriptorium. Another early example would be a depiction of eyeglasses found north of the Alpes in an altarpiece of the church of Bad Wildungen, Germany, in 1403.
Many theories abound for who should be credited for the invention of traditional eyeglasses. In 1676, Francesco Redi, a professor of medicine at the University of Pisa, wrote that he possessed a 1289 manuscript whose author complains that he would be unable to read or write were it not for the recent invention of glasses. He also produced a record of a sermon given in 1305, in which the speaker, a Dominican monk named Fra Giordano da Rivalto, remarked that glasses had been invented less than twenty years previously, and that he had met the inventor. Based on this evidence, Redi credited another Dominican monk, Fra Alessandro da Spina of Pisa, with the re-invention of glasses after their original inventor kept them a secret, a claim contained in da Spina's obituary record.

Seated apostle holding lenses in position for reading. Detail from Death of the Virgin, by the Master of Heiligenkreuz, ca. 1400-30 (Getty Center).
Other stories, possibly legendary, credit Roger Bacon with the invention. Bacon is known to have made one of the first recorded references to the magnifying properties of lenses in 1262,though this was predated by Alhazen's Book of Optics in 1021. Bacon's treatise De iride ("On the Rainbow"), which was written while he was a student of Robert Grosseteste, no later than 1235, mentions using optics to "read the smallest letters at incredible distances". While the exact date and inventor may be forever disputed, it is almost certain that spectacles were invented between 1280 and 1300 in Italy. These early spectacles had convex lenses that could correct both hyperopia (farsightedness), and the presbyopia that commonly develops as a symptom of aging. Nicholas of Cusa is believed to have discovered the benefits of concave lens in the treatment of myopia (nearsightedness). However, it was not until 1604 that Johannes Kepler published in his treatise on optics and astronomy, the first correct explanation as to why convex and concave lenses could correct presbyopia and myopia.

Later developments

A portrait of Francisco de Quevedo y Villegas, 1580–1645
The American scientist Benjamin Franklin, who suffered from both myopia and presbyopia, invented bifocals in 1784 to avoid having to regularly switch between two pairs of glasses. The first lenses for correcting astigmatism were constructed by the British astronomer George Airy in 1825.
Over time, the construction of spectacle frames also evolved. Early eyepieces were designed to be either held in place by hand or by exerting pressure on the nose (pince-nez). Girolamo Savonarola suggested that eyepieces could be held in place by a ribbon passed over the wearer's head, this in turn secured by the weight of a hat. The modern style of glasses, held by temples passing over the ears, was developed in 1727 by the British optician Edward Scarlett. These designs were not immediately successful, however, and various styles with attached handles such as "scissors-glasses" and lorgnettes remained fashionable throughout the 18th and into the early 19th century.
In the early 20th century, Moritz von Rohr at Zeiss (with the assistance of H. Boegehold and A. Sonnefeld), developed the Zeiss Punktal spherical point-focus lenses that dominated the eyeglass lens field for many years.
Despite the increasing popularity of contact lenses and laser corrective eye surgery, glasses remain very common, as their technology has improved. For instance, it is now possible to purchase frames made of special memory metal alloys that return to their correct shape after being bent. Other frames have spring-loaded hinges. Either of these designs offers dramatically better ability to withstand the stresses of daily wear and the occasional accident. Modern frames are also often made from strong, light-weight materials such as titanium alloys, which were not available in earlier times.
On May 1, 1992 the United States Federal Trade Commission declared (section 456.2) that optometrists be required to provide the patient with a complete prescription immediately following an eye exam, effectively giving the patient the choice of where to purchase their glasses. The result was greater competition between the glasses manufacturers and thus lower prices for consumers. This trend has been accelerated by the proliferation of Internet technology, giving consumers the chance to bypass traditional distribution channels and buy glasses directly from the manufacturers.

Types

Corrective

Seattle skyline as seen through a corrective lens, showing the effect of refraction.
Main articles: Corrective lens and Refraction error
Corrective lenses modify the focal length of the eye to alleviate the effects of nearsightedness (myopia), farsightedness (hyperopia) or astigmatism. As people age, the eye's crystalline lens loses elasticity, resulting in presbyopia, which limits their ability to change focus.
The power of a lens is generally measured in diopters. Over-the-counter reading glasses are typically rated at +1.00 to +4.00 diopters. Glasses correcting for myopia will have negative diopter strengths. Lenses made to conform to the prescription of an ophthalmologist or optometrist are called prescription lenses and are used to make prescription glasses, which are then verified correct using a professional lensmeter.

Safety
Main article: Eye protection
Safety glasses are usually made with shatter-resistant plastic lenses to protect the eye from flying debris. Although safety lenses may be constructed from a variety of materials of various impact resistance, certain standards suggest that they maintain a minimum 1 millimeter thickness at the thinnest point, regardless of material. Safety glasses can vary in the level of protection they provide. For example, those used in medicine may be expected to protect against blood splatter while safety glasses in a factory might have stronger lenses and a stronger frame with additional shields at the temples. The lenses of safety glasses can also be shaped for correction.

Safety glasses with side shields
The American National Standards Institute has established standard ANSI Z87.1 for safety glasses in the United States, and similar standards have been established elsewhere.
OSHA provides guidance on the type of safety eyewear that should be used for a particular application.
Some safety glasses are designed to fit over corrective glasses or sunglasses. They may provide less eye protection than goggles or other forms of eye protection, but their light weight increases the likelihood that they will actually be used. Modern safety glasses tend to be given a more stylish design in order to encourage their use. Corrective glasses with plastic lenses can be used in the place of safety glasses in many environments; this is one advantage that they have over contact lenses.
There are also safety glasses for welding, which are styled like wraparound sunglasses, but with much darker lenses, for use in welding where a full sized welding helmet is inconvenient or uncomfortable. These are often called "flash goggles", because they provide protection from welding flash.
Worker safety eyewear is available in various lens colors and/or with coatings to protect or enable eyesight in different lighting conditions, particularly when outdoors.
Nylon frames are usually used for protection eyewear for sports because of their lightweight and flexible properties. They are able to bend slightly and return to their original shape instead of breaking when pressure is applied to them. Nylon frames can become very brittle with age and they can be difficult to adjust.

Sunglasses
Main article: Sunglasses
Sunglasses may be made with either prescription or non-prescription lenses that are darkened to provide protection against bright visible and possibly ultraviolet light.
Glasses with photosensitive lenses, called photochromic lenses, become darker in the presence of UV light. Unfortunately, many car windshields block the passage of UV light, making photochromic lenses less effective whilst driving on bright days. Still, they offer the convenience of not having to carry both clear glasses and sunglasses to those who frequently go indoors and outdoors during the course of a day. Recent technology has developed specialized photochromic lenses that work behind the windshield of the car, as well as outside of the car.
Light polarization is an added feature that can be applied to sunglass lenses. Polarization filters remove horizontally polarized rays of light, which can cause glare. Popular among fishermen and hunters, polarized sunglasses allow wearers to see into water when normally glare or reflected light would be seen. Polarized sunglasses may present some difficulties for pilots since reflections from water and other structures often used to gauge altitude may be removed, or instrument readings on liquid crystal displays may be blocked.
Yellow lenses are commonly used by golfers and shooters for their contrast enhancement and depth perception properties. Brown lenses are also common among golfers, but cause color distortion. Blue, purple, and green lenses offer no real benefits to vision enhancement and are mainly cosmetic. Some sunglasses with interchangeable lenses have optional clear lenses to protect the eyes during low light or night time activities and a colored lens with UV protection for times where sun protection is needed. Debate exists as to whether "blue blocking" or amber tinted lenses have a protective effect.
Sunglasses are often worn just for aesthetic purposes, or simply to hide the eyes. Examples of sunglasses that were popular for these reasons include teashades and mirrorshades.

Special

Swimming goggles.
The illusion of three dimensions on a two dimensional surface can be created by providing each eye with different visual information. Classic 3D glasses create the illusion of three dimensions when viewing specially prepared images. The classic 3D glasses have one red lens and one blue lens. 3D glasses made of cardboard and plastic are distributed at 3D movies. Another kind of 3D glasses uses polarized filters, with one lens polarized vertically and the other horizontally, with the two images required for stereo vision polarized the same way. Polarized 3D glasses allow for color 3D, while the red-blue lenses produce a dull black-and-white picture with red and blue fringes.
One kind of electronic 3D spectacles uses electronic shutters, while virtual reality glasses and helmets have separate video screens for each eye.

Variations
Magnifying lenses which are used to treat mild hyperopia and presbyopia, normally referred to as reading glasses, can be bought off the shelf. Most glasses are made to an individual prescription, based on degree of myopia or hyperopia combined with astigmatism if applicable. Lenses can be ground to specific prescriptions, but in some cases standard off-the-shelf prescriptions suffice, though they require custom fitting to particular frames.
As people age, their ability to focus is lessened and many decide to use multiple-focus lenses, bifocal or even trifocal to cover all the situations in which they use their sight. Traditional multifocal lenses have two or three distinct horizontal viewing areas, each requiring a conscious effort of refocusing. Some modern multifocal lenses, such as Progressive lenses (known as "no-line bifocals"), give a smooth transition between these different focal points, unnoticeable by most wearers, while other glasses have lenses specifically intended for use with computer monitors at a fixed distance. People may have several pairs of glasses, one for each task or distance, with specific glasses for reading, computer use, television watching, and writing.



Three-piece rimless and semi-rimless glasses are common variations that differ from regular glasses in that their frames do not completely encircle the lenses. Three-piece rimless glasses have no frame around the lenses, and the bridge and temples are mounted directly onto the lenses. Semi-rimless (or half-rimless) glasses have a frame that only partially encircles the lenses (commonly the top portion), which are held in place most often by high strength nylon wire.A rare and currently non commercial variation are rimless and frameless glasses attached to a piercing at the bridge of a wearers nose. Such glasses have the visual look of the pince-nez.

Glazing
Spectacle lenses are edged into the frame's rim using glazing machines operated by ophthalmic technicians. The edging process begins with a trace being taken of the frame's eye shape. In earlier days the trace was replicated onto a plastic pattern called a Former. Nowadays the process is patternless and the shape is sent to the edger electronically.
The lens, in the form of a round uncut, is positioned in the correct manner to match the prescription and a block is stuck to the lens and that block fits into a chuck in the edging machine. A diamond coated wheel spins as the edger replicates the frame's eye-shape to the uncut lens. A 'v' bevel is applied to allow the edge of the lens to fit into the frame rim.

Fashion

United States senator Barry Goldwater in horn-rimmed glasses.
Glasses can be a major part of personal image and expression, from Groucho Marx and Buddy Holly to the extravagance of Elton John and Dame Edna Everage.
For some celebrities, glasses form part of their identity. United States Senator Barry Goldwater continued to wear lensless horn-rimmed spectacles after being fitted with contact lenses because he was not recognizable without his trademark glasses. British soap star Anne Kirkbride had the same problem: her character on Coronation Street, Deirdre Barlow, became so well-known for her big frames that she was expected to wear them at social gatherings and in international tours, even though Kirkbride has always worn contact lenses. Comedian Drew Carey continued to wear glasses for the same reason after getting corrective laser eye surgery. British comedic actor Eric Sykes, who became profoundly deaf as an adult, wears glasses that contain no lenses; they are actually a bone-conducting hearing aid. Masaharu Morimoto wears glasses to separate his professional persona as a chef from his stage persona as Iron Chef Japanese. John Lennon wore his round-lens 'Windsor' spectacles from some of his time with the Beatles to his murder in 1980. The rock band Weezer is known for some of the members wearing thick-rimmed glasses.

Steve Wozniak's "Apple Glasses"
In popular culture, glasses were all the disguise Superman and Wonder Woman needed to hide in plain view as alter egos Clark Kent and Diana Prince, respectively. An example of halo effect is seen in the stereotype that those who wear glasses are intelligent or, especially in teen culture, even geeks and nerds. Some people who find that wearing glasses may look 'nerdy' turn to contact lenses or laser eye surgery, especially under peer pressure.
Another unpopular aspect of glasses is their inconvenience. Even through the creation of light frames, such as those made of titanium, very flexible frames, and new lens materials and optical coatings, glasses can still cause problems during rigorous sports. The lenses can become greasy or trap vapour when eating hot food, swimming, walking in rain or rapid temperature changes (such as walking into a warm building from cold temperatures outside), reducing visibility significantly. Scraping, fracturing, or breakage of the lenses require time-consuming and costly professional repair, though modern plastic lenses are almost indestructible and very scratch-resistant.
Apple, Inc. co-founder Steve Wozniak had a pair of eyeglasses made with lenses in the shape of the well-known Apple logo. The lenses were made from a block of acrylic, laminated from layers in the usual rainbow colors, and machined into the appropriate outline, with a custom-made frame in the same shape. They were made by a Silicon Valley optician.

Disposal
Some organizations like Lions Clubs Internationaland Unite For Sight provide a way to donate glasses and sunglasses. Unite For Sight has redistributed more than 200,000 pairs.


composite safety shoes


Neck Heat Massager


embroidered luggage tags


Rubber Bath Mat


Outdoor Resin Furniture


white wave granite


cordless car polisher


Wall-Mounted Air Conditioner


Metal Mesh Handbag


RJ45 Cable Tester


Plastic Cake Containers


industrial quilting machine


cotton beach towel


flat poly bags


Hydraulic Truck Crane


Bw CCD Camera


Modified Potato Starch


natural beta carotene


Foam Roller Cover


rimless eye glasses


Wooden Beaded Curtain


bamboo lamp shades


Strong Satellite Receiver


battery-operated led light


brush cosmetic kit


tissue roll holder


Feed Through Capacitors


Roller Blinds Bamboo

Hockey


Field hockey

Field hockey game at Melbourne University.
Main article: Field hockey
Field hockey is played on gravel, natural grass, sand-based or water-based artificial turf, with a small, hard ball. The game is popular among both males and females in many parts of the world, particularly in Europe, Asia, Australia, and South Africa. In most countries, the game is played between single-sex sides, although they can be mixed-sex.
The governing body is the 116-member International Hockey Federation (FIH). Men's Field hockey has been played at each summer Olympic Games since 1908 (except 1912 and 1924), while Women's Field Hockey has been played each summer Olympic Games since 1980.
Modern field hockey sticks are J-shaped and constructed of a composite of wood, glass fibre or carbon fibre (sometimes both) and have a curved hook at the playing end, a flat surface on the playing side and curved surface on the rear side. While current field hockey appeared in the mid-18th century in England, primarily in schools, it was not until the first half of the 19th century that it became firmly established. The first club was created in 1849 at Blackheath in south-east London. Field hockey is the national sport of India and Pakistan.

Ice hockey

The Barrie Colts and the Brampton Battalion in an ice hockey game.
Main article: Ice hockey
Ice hockey is played on a large flat area of ice, using a three inch (76.2 mm) diameter vulcanized rubber disc called a puck. This puck is often frozen before high-level games to decrease the amount of bouncing and friction on the ice. The game is contested between two teams of skaters. The game is played all over North America, Europe and in many other countries around the world to varying extent. It is the most popular sport in Canada, Finland, the Czech Republic, and in Sweden.
The governing body is the 64-member International Ice Hockey Federation, (IIHF). Men's ice hockey has been played at the Winter Olympics since 1924, and was in the 1920 Summer Olympics. Women's ice hockey was added to the Winter Olympics in 1998. North America's National Hockey League (NHL) is the strongest professional ice hockey league, drawing top ice hockey players from around the globe. The NHL rules are slightly different from those used in Olympic ice hockey: the periods are 20 minutes long, counting downwards. There are three periods.
Ice hockey sticks are long L-shaped sticks made of wood, graphite, or composites with a blade at the bottom that can lie flat on the playing surface when the stick is held upright and can curve either way, legally, as to help a left- or right-handed player gain an advantage.
There are early representations and reports of ice hockey-type games being played on ice in the Netherlands, and reports from Canada from the beginning of the nineteenth century, but the modern game was initially organized by students at McGill University, Montreal in 1875 who, by two years later, codified the first set of ice hockey rules and organized the first teams.
Ice hockey is played at a number of levels, by all ages.
Further information: minor hockey

Roller hockey (inline)

Inline roller hockey
Main article: Inline hockey
Inline hockey is a variation of roller hockey very similar to ice hockey, from which it is derived. Inline hockey is played by two teams, consisting of four skaters and one goalie, on a dry rink divided into two halves by a center line, with one net at each end of the rink. The game is played in three 15-minute periods with a variation of the ice hockey off-side rule. Icings are also called, but are usually referred to as illegal clearing. For rink dimensions and an overview of the rules of the game, see IIHF Inline Rules (official rules). Some leagues and competitions do not follow the IIHF regulations, in particular USA Inline and Canada Inline.

Roller hockey (quad)

Roller hockey played on quad skates.
Main article: Roller hockey (quad)
Roller hockey (quad) is the overarching name for a roller sport that has existed since long before inline skates were invented. Roller hockey has been played in sixty countries worldwide and so has many names worldwide. The sport is also known as quad hockey, hóquei em patins, international style ball hockey, rink hockey and hardball hockey. Roller Hockey was a demonstration roller sport at the 1992 Barcelona Summer Olympics.

Street hockey
Main article: Street hockey
Another form of popular hockey is Street hockey, sometimes known as road hockey. This is usually played with the same rules as ice hockey, or roller hockey, except it is on the street. Most of the time, a ball is used instead of a puck, because a puck generates too much friction when handled on an asphalt or cement surface and does not slide. Street hockey is played year round.

Other forms of hockey
Other games derived from hockey or its predecessors include the following:
Air hockey is played indoors with a puck on an air-cushion table.
Ball hockey is played in a gym using sticks and a ball, often a tennis ball with the fuzz removed.

Unicycle hockey
Unicycle hockey is similar to roller or inline hockey, however, each player must be mounted on their unicycle (with both feet on the pedals) to play at the ball.
Bandy is played with a ball on a football-sized ice arena, typically outdoors.
Box hockey is a school yard game played by two people. The object of the game is to move a hockey puck from the center of the box out through a hole placed at the end of the box (known as the goal). Each player kneels and faces one another on either side of the box, and each attempts to move the puck to the hole on their left.
Broomball is played on an ice hockey rink, but with a ball instead of a puck and a "broom" (actually a stick with a small plastic implement on the end) in place of the ice hockey stick. Instead of using skates, special shoes are used that have very soft rubbery soles to maximize grip while running around.
Floorball, is a form of hockey played in a gymnasium or in sport halls. A whiffle ball is used instead of a plastic ball, and the sticks are made from composite materials. The sticks are only one meter long.
Foot hockey or sock hockey is played using a bald tennis ball or rolled up pair of socks and using only the feet. It is popular at elementary schools in the winter.
Gym hockey is a form of ice hockey played in a gymnasium. It uses sticks with foam ends and a foam ball or a plastic puck.
Hurling and Camogie are Irish games bearing some resemblance to - and notable differences from - hockey.
Indoor field hockey is an indoor variation of field hockey.
Mini hockey In the United States is a form of hockey (also known as "mini-sticks") which is played in basements of houses. Players get down on their knees, using a miniature plastic stick, usually about 15 inches (38 cm) long to maneuver a small ball or a soft, fabric covered mini puck into a miniature goals. In England 'mini hockey' refers to a seven-a-side version of field hockey, played on an area equivalent to half a normal pitch for younger players, see Minkey (mini hockey)
Nok hockey is a table-top version of hockey played with no defense and a small block in front of the goal.
PowerHockey is a form of hockey for persons requiring the use of an electric (power) wheelchair in daily life. PowerHockey is a competitive sports opportunity for the physically disabled.
Ringette is an ice hockey variant that was designed for female players; it uses a straight stick and a rubber ring in place of a puck. Note: Ringette distances itself from hockey as it has its own set of rules and is closely related to a mix of lacrosse and basketball.
Rinkball is a Scandinavian team sport, played in an ice hockey rink with a ball.
Rossall hockey is a variation played at Rossall School on the sea shore in the winter months. Its rules are a mix of field hockey, Rugby and the Eton Wall Game.
Shinny is an informal version of ice hockey.
Shinty is a Scottish game now played primarily in the Highlands
Skater hockey is a variant of inline hockey, played with a ball.
Sledge hockey is a form of ice hockey played by the disabled. The players sit on sleds, and push themselves up and down the ice with picks on the butt end of their shortened hockey sticks. The game is played with many of the same rules as regular ice hockey.
Spongee is a cross between ice hockey and broomball and is most popular in Manitoba, Canada. A stick and puck are used as in hockey (the puck is a softer version called a "sponge puck"), and the same soft-soled shoes used in broomball are worn. The rules are basically the same as ice hockey, but one variation has an extra player on the ice called a "rover".
Table hockey is played indoors with a table-top game.
Underwater hockey is played on the bottom of a swimming pool.

Carotene

The multiple forms

α-carotene

β-carotene
The two primary isomers of carotene, α-carotene and β-carotene, differ in the position of double bonds in the cyclic group at the end.
β-Carotene is the more common form and can be found in yellow, orange, and green leafy fruits and vegetables. As a rule of thumb, the greater the intensity of the orange colour of the fruit or vegetable, the more β-carotene it contains.
Carotene protects plant cells against the destructive effects of ultraviolet light. β-Carotene is an anti-oxidant.

Beta-carotene and cancer
It has been shown in trials that the ingestion of beta carotene at about 30 mg/day (10 times the Reference Daily Intake) increases the rate of lung cancer and prostate cancer, and increases mortality in smokers and people with a history of asbestos exposure.
An article on the American Cancer Society says that The Cancer Research Campaign has called for warning labels on beta carotene supplements to caution smokers that such supplements may increase the risk of lung cancer.
The New England Journal of Medicine published an article in 1994 about a trial which examined the relationship between daily supplementation of beta carotene and vitamin E (alpha-tocopherol) and the incidence of lung cancer. The study was done using supplements and researchers were aware of the epidemiological correlation between carotenoid-rich fruits and vegetables and lower lung cancer rates. The research concluded that no reduction in lung cancer was found in the participants using these supplements (beta-carotene), and furthermore, these supplements may, in fact, have harmful effects.
The Journal of the National Cancer Institute published an article in 1996 about a trial that was conducted to determine if vitamin A (in the form of retinyl palmitate) and beta carotene had any beneficial effects to prevent cancer. The results indicate an increased risk of lung cancer for the participants who consumed the beta-carotene supplement.
A randomised trial into the use of β-carotene and vitamin A for prevention of lung cancer had to be stopped early due to the apparent increase in the incidence of lung cancer in those with lung irritation from smoking or asbestos exposure.
A review of all randomized controlled trials in the scientific literature by the Cochrane Collaboration published in JAMA in 2007 found that beta carotene increased mortality by something between 1 and 8% (Relative Risk 1.05, 95% confidence interval 1.01-1.08).However, this meta-analysis included two large studies of smokers, so it is not clear that the results apply to the general population.

Beta carotene and cognition
A recent report demonstrated that 50mg of beta carotene every other day prevented cognitive decline in a study of over 4000 physicians at a mean treatment duration of 18 years.

Carotenemia
Main article: Carotenodermia
Carotenemia or hypercarotenemia is excess carotene, but unlike excess vitamin A, carotene is non-toxic. Although hypercarotenemia is not particularly dangerous, it can lead to a yellowing of the skin (carotenodermia), but not the conjunctiva of eyes (thus easily distingishing it visually from jaundice). It is most commonly associated with consumption of an abundance of carrots, but it also can be a medical sign of more dangerous conditions.

Production
Most of the world's synthetic supply of carotene comes from a manufacturing complex located in Freeport, Texas and owned by DSM. The other major supplier BASF also uses a chemical process to produce beta carotene. Together these suppliers account for about 85% of the beta carotene on the market. In Spain Vitatene produces natural beta carotene from Blakeslea trispora, as does DSM but at much lower amount when compared to its synthetic beta carotene operation. In Australia, organic beta-carotene is produced by Aquacarotene Limited from dried marine algae Dunaliella salina grown in harvesting ponds situated in Karratha, Western Australia. Cognis Australia Pty. Ltd., a subsidiary of the Germany-based company Cognis, is also producing beta carotene from microalgae grown in two sites in Australia that are the world’s largest algae farms. In Portugal, the industrial biotechnology company Biotrend is producing natural all-trans beta carotene from a non genetically modified bacteria of the Sphingomonas genus isolated from soil.
Carotene is also found in palm oil, corn, and in the milk of Guernsey dairy cows, causing their milk to turn yellow. It is also found in some species of termites.

Total synthesis
There are currently two commonly used methods of total synthesis of β-carotene. The first was developed by the Badische Anilin- & Soda-Fabrik (BASF) and is based on the Wittig reaction. The second is a Grignard reaction, elaborated by Hoffman-La Roche from the original synthesis of Inhoffen et al. They are both symmetrical; the BASF synthesis is C20 + C20 , and the Hoffman-La Roche synthesis is C19 + C2 + C19.

Nomenclature
Carotenes are carotenoids containing no oxygen. Carotenoids containing some oxygen are known as xanthophylls.
The two ends of the β-carotene molecule are structurally identical, and are called β-rings. Specifically, the group of nine carbon atoms at each end form a β-ring.
The α-carotene molecule has a β-ring at one end; the other end is called an ε-ring. There is no such thing as an "α-ring".
These and similar names for the ends of the carotenoid molecules form the basis of a systematic naming scheme, according to which:
α-carotene is β,ε-carotene;
β-carotene is β,β-carotene;
γ-carotene (with one β ring and one uncyclized end that is labelled psi) is β,ψ-carotene;
δ-carotene (with one ε ring and one uncyclized end) is ε,ψ-carotene;
ε-carotene is ε,ε-carotene
6 μg of dietary β-carotene supplies the equivalent of 1 μg of retinol, or 1 RE (Retinol Equivalent). This is equivalent to 3⅓ IU of vitamin A.



composite safety shoes


Neck Heat Massager


embroidered luggage tags


Rubber Bath Mat


Outdoor Resin Furniture


white wave granite


cordless car polisher


Wall-Mounted Air Conditioner


Metal Mesh Handbag


RJ45 Cable Tester


Plastic Cake Containers


industrial quilting machine


cotton beach towel


flat poly bags


Hydraulic Truck Crane


Bw CCD Camera


Modified Potato Starch


natural beta carotene


Foam Roller Cover


rimless eye glasses


Wooden Beaded Curtain


bamboo lamp shades


Strong Satellite Receiver


battery-operated led light


brush cosmetic kit


tissue roll holder


Feed Through Capacitors


Roller Blinds Bamboo


aluminum sand casting

Starch

Etymology
Starch derived from Middle English sterchan, meaning to stiffen, which is appropriate since it can be used as a thickening agent when dissolved in water and heated. In several languages, starch is known as sago or sagu; consequently, in English sago now refers to several different starches (see Sago (disambiguation)). Starch is basically long chains of glucose molecules which all have different heights and weights.

Starch use for plants
Plants use starch as a way to store excess glucose, and use starch as food during mitochondrial oxidative phosphorylation. Starch is the main storage of energy for plants. Starch is all over the plant. Toward the end of the growing season starch accumulates in twigs of trees near the buds. Especially Fruit, seeds, rhizomes, and tubers store of starch for plants to start the growth next spring.


Granules of wheat starch, stained with iodine, photographed through a light microscope
Iodine solution is used to test for starch. A bluish-black color indicates the presence of iodine in the starch solution. It is thought that the iodine fits inside the coils of amylose.A 0.3% w/w solution is the standard concentration for a dilute starch indicator solution. It is made by adding 4 grams of soluble starch to 1 litre of heated water; the solution is cooled before use (starch-iodine complex becomes unstable at temperatures above 35 °C). This complex is often used in redox titrations: in presence of an oxidizing agent the solution turns blue, in the presence of reducing agent, the blue color disappears because triiodide (I3−) ions break up into three iodide ions, disassembling the complex.
Microscopy of starch granules - Each species of plant has an unique shape of starch granules in granular size, shape and crystallisation pattern.Under the microscope, starch grains stained with iodine illuminated from behind with polarized light show a distinctive Maltese cross effect (also known as extinction cross and birefringence).

Starch, nutrient for humans
Starch is a main nutrient for humans. The major sources of starch intake in the human diet worldwide are rice, wheat, corn, potatoes, cassava. Well known prepared foods based on starch roots or seeds are also bread, pancakes, cereals, noodles, pasta and tortilla, Depending on the local climate other starch sources are used as arrowroot, arracacha, buckwheat, banana, barley, kudzu, oca, sago, sorghum, sweet potato, taro and yams. Edible beans, such as favas, lentils and peas, are also rich in starch
Note: Fresh chestnut has twice as much starch as potato. As the chestnut ripens, some of its starch is gradually converted into sugars.

Commercial available starch powder
The starch Industry extracts and refines starches form seeds and roots. Today, main commercial refined starches are cornstarch, tapioca, wheat and potato starch. To a lesser extent also other source are used as rice, sago and peas. Historically Florida arrowroot was also commercialized. Still more than 50 types of plants are used to make starch from.
'Amylose and amylopectine - Starch generally contains 20 to 25 percent amylose and 75 to 80 percent amylopectin. Depending on the plant this varies, some types of starches as waxy maize, amylopectine potato starch contain mainly amylopectine and high amylose corn starch contain much more amylose.

Native starch
Refined starch is called native starch and used in cooking to thicken foods such as sauces and soups, making noodles, pastas... In industrial application, it is used in the manufacturing of corrugated board adhesives, paper, textiles and as a mold in the manufacture of sweets such as wine gums and jelly beans.

Modified starch
A modified food starch undergoes one or more chemical modifications, which allow the starch for example to function properly such as under high heat, and/or shear frequently encountered during processing and conditions during storage such as cooling.
When a starch is pre-cooked, it can then be used to thicken instant in cold water. This is referred to as a pregelatinized starch. Otherwise starch requires heat to thicken, or "gelatinize". The actual temperature depends on the type of starch.
The modified starches are coded according to the International Numbering System for Food Additives (INS) :
1401 Acid-treated starch
1402 Alkaline-treated starch
1403 Bleached starch
1404 Oxidized starch
1405 Starches, enzyme-treated
1410 Monostarch phosphate
1411 Distarch glycerol
1412 Distarch phosphate esterified with sodium trimetaphosphate
1413 Phosphated distarch phosphate
1414 Acetylated distarch phosphate
1420 Starch acetate esterified with acetic anhydride
1421 Starch acetate esterified with vinyl acetate
1422 Acetylated distarch adipate
1423 Acetylated distarch glycerol
1440 Hydroxypropyl starch
1442 Hydroxypropyl distarch phosphate
1443 Hydroxypropyl distarch glycerol
1450 Starch sodium octenyl succinate
Some other types of modified starches commercially available are dextrins, cationic starches, carboxymethylated starches.

Starch sugars
Starch are hydrolyzed into simpler carbohydrates by acids, various enzymes, or a combination of the two. The extent of conversion is typically quantified by dextrose equivalency (DE), which is roughly the fraction of the glycoside bonds in starch that have been broken. Food products made in this way include:
Maltodextrin, a lightly hydrolyzed (DE 10–20) starch product used as a bland-tasting filler and thickener.
Various glucose syrup / corn syrups (DE 30–70), viscous solutions used as sweeteners and thickeners in many kinds of processed foods.
Dextrose (DE 100), commercial glucose, prepared by the complete hydrolysis of starch.
High fructose syrup, made by treating dextrose solutions with the enzyme glucose isomerase, until a substantial fraction of the glucose has been converted to fructose. In the United States, high fructose corn syrup is the principal sweetener used in sweetened beverages because fructose has better handling characteristics, such as microbiological stability, and more consistent sweetness/flavor. High fructose corn syrup has the same sweetness as sugar.

Food Ingredients
As an additive for food processing, food starches are typically used as thickeners and stabilizers in foods such as puddings, custards, soups, sauces, gravies, pie fillings, and salad dressings, but have many other uses. But by far most starch based food ingredient used in food is glucose and use as sweetener in many drinks and foods as partially as a substitute for beet sugar .
Use as a mold. Gummed sweets such as jelly beans and wine gums are not manufactured using a mold in the conventional sense. A tray is filled with native starch and leveled. A positive mold is then pressed into the starch leaving an impression of 1000 or so jelly beans. The mix is then poured into the impressions and then put into a stove to set. This method greatly reduces the number of molds that must be manufactured.
Resistant starch is starch that escapes digestion in the small intestine of healthy individuals.

Industrial applications

Starch adhesive
Papermaking is the largest non-food application for starches globally, consuming millions of metric tons annually. In a typical sheet of copy paper for instance, the starch content may be as high as 8%. Both chemically modified and unmodified starches are used in papermaking. In the wet part of the papermaking process, generally called the “wet-end”, starches are chemically modified to contain a cationic or positive charge bound to the starch polymer, and are utilized to associate with the anionic or negatively charged paper fibers and inorganic fillers.
These cationic starches impart the necessary strength properties for the paper web to be formed in the papermaking process (wet strength), and to provide strength to the final paper sheet (dry strength). In the dry end of the papermaking process the paper web is rewetted with a solution of starch paste that has been chemically, or enzymatically depolymerized. The starch paste solutions are applied to the paper web by means of various mechanical presses (size press). The dry end starches impart additional strength to the paper web and additionally provide water hold out or “size” for superior printing properties.
Corrugating glues are the next largest consumer of non-food starches globally. These glues are used in the production of corrugated fiberboard (sometimes called corrugated cardboard), and generally contain a mixture of chemically modified and unmodified starches that have been partially gelatinized to form an opaque paste. This paste is applied to the flute tips of the interior fluted paper to glue the fluted paper to the outside paper in the construction of cardboard boxes. This is then dried under high heat, which provides the box board strength and rigidity.
Another large non-food starch application is in the construction industry where starch is used in the gypsum wall board manufacturing process. Chemically modified or unmodified starches are added to the stucco containing primarily gypsum. Top and bottom heavyweight sheets of paper are applied to the formulation and the process is allowed to heat and cure to form the eventual rigid wall board. The starches act as a glue for the cured gypsum rock with the paper covering and also provide rigidity to the board.
Clothing starch or laundry starch is a liquid that is prepared by mixing a vegetable starch in water (earlier preparations also had to be boiled), and is used in the laundering of clothes. Starch was widely used in Europe in the 16th and 17th centuries to stiffen the wide collars and ruffs of fine linen which surrounded the necks of the well-to-do. During the 19th century and early 20th century, it was stylish to stiffen the collars and sleeves of men's shirts and the ruffles of girls' petticoats by applying starch to them as the clean clothes were being ironed. Aside from the smooth, crisp edges it gave to clothing, it served practical purposes as well. Dirt and sweat from a person's neck and wrists would stick to the starch rather than fibers of the clothing, and would easily wash away along with the starch. After each laundering, the starch would be reapplied. Today the product is sold in aerosol cans for home use.
Starch is also used to make some packing peanuts, and some dropped ceiling tiles.
Textile chemicals - To reduce breaking of yarns of during weaving, the warp yarns are sized. Starch is one of the main textile sizing agents used for cotton sizing. Starch is also used as printing thickener.
Adhesives - Starch is also used in the manufacture of glues for book-binding, wallpaper adhesives, paper sack production, tube winding, gummed paper, envelop adhesives, school glues, bottle labeling. Starch derivatives as yellow dextrins can be modified by addition of some chemical forms to be a hard glue for paper work , some of those forms are Borax , Soda Ash , which mixed with the starch solution at 50-70C to gain a very good adhesive, Sodium Silicate can be added to reinforce this formula.
Printing industry - in the printing industry food grade starch is used in the manufacture of anti-set-off spray powder used to separate printed sheets of paper to avoid wet ink being set off.
Hydrogen production - Starch can be used to produce Hydrogen.
Bio-ethanol - Glucose is further fermented to ethanol.
Oil exploration - starch is used as to adjust the viscosity of drilling fluid which is used to lubricate the drill head in (mineral) oil extraction.
Body powder - Powdered corn starch is used as a substitute for talcum powder in many health and beauty products.



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Wall-Mounted Air Conditioner


Metal Mesh Handbag


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Modified Potato Starch


natural beta carotene


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rimless eye glasses


Wooden Beaded Curtain


bamboo lamp shades


Strong Satellite Receiver


battery-operated led light


brush cosmetic kit


tissue roll holder


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Roller Blinds Bamboo


aluminum sand casting

Cyberknife

Main Features
Several generations of the CyberKnife system have been developed since its initial inception in 1990. There are two essential features of the CyberKnife system that set it apart from other stereotactic therapy methods.

Robotic Mounting
The first is the fact that the radiation source is mounted on a precisely controlled industrial robot. The original CyberKnife used a Japanese Fanuc robot, however the more modern systems use a German KUKA KR 240.Mounted on the Robot is a compact X-band linac that produces 6MV X-ray radiation. The linac is capable of delivering approximately 600 cGy of radiation each minute - a new 800 cGy / minute model was announced at ASTRO2007. The radiation is collimated using fixed tungsten collimators (also referred to as “cones”) which produce circular radiation fields. At present the radiation field sizes are: 5, 7.5, 10, 12.5, 15, 20, 25, 30, 35, 40, 50 and 60 mm. ASTRO 2007 also saw the launch of the IRISvariable-aperture collimator which uses two offset banks of six prismatic tungsten segments to form a blurred dodecagon field that is almost circular. The IRIS replicates the fixed collimator sizes without the need for exchanging the fixed collimators. Mounting the radiation source on the robot allows complete freedom to position the radiation within a space about the patient. The robotic mounting allows very fast repositioning of the source, which enables the system to deliver radiation from many different directions in a feasibly short treatment time.

Image Guidance
The image guidance system is the other essential item in the CyberKnife system. X-ray imaging cameras are located on supports around the patient allowing instantaneous X-ray images to be obtained.

6D Skull
The original (and still utilized) method is called 6D or skull based tracking. The X-ray camera images are compared to a library of computer generated images of the patient anatomy Digitally Reconstructed Radiographs (or DRR's) and a computer algorithm determines what motion corrections have to be given to the robot because of patient movement. This imaging system allows the CyberKnife to deliver radiation with an accuracy of 0.5mm without using mechanical clamps attached to the patient's skull. The use of the image guided technique is referred to as frameless stereotactic radiosurgery. This method is referred to as 6D because corrections are made for the 3 translational motions (X,Y and Z) and three rotational motions. It should be noted that it is necessary to use some anatomical or artificial feature to orient the robot to deliver X-ray radiation, since the tumor is never sufficiently well defined (if visible at all) on the X-ray camera images.

6D Skull tracking

Xsight
Additional image guidance methods are available for spinal tumors and for tumors located in the lung. For a tumor located in the spine, a variant of the image guidance called Xsight-Spine is used. The major difference here is that instead of taking images of the skull, images of the spinal processes are used. Whereas the skull is effectively rigid and non-deforming, the spinal vertebrae can move relative to each other, this means that image warping algorithms must be used to correct for the distortion of the X-ray camera images.
A recent enhancement to Xsight is Xsight-Lungwhich allows tracking of some lung tumors without the need to implant fiduciary markers.

Fiducial
For soft tissue tumors, a method known as fiducial tracking can be utilized. Small metal markers (fiducials) made out of gold for bio-compatibility and high density to give good contrast on X-ray images are surgically implanted in the patient. This is carried out by an interventional radiologist, or neurosurgeon. The placement of the fiducials is a critical step if the fiducial tracking is to be used. If the fiducials are too far from the location of the tumor, or are not sufficiently spread out from each other it will not be possible to accurately deliver the radiation. Once these markers have been placed, they are located on a CT scan and the image guidance system is programmed with their position. When X-ray camera images are taken, the location of the tumor relative to the fiducials is determined, and the radiation can be delivered to any part of the body. Thus the fiducial tracking does not require any bony anatomy to position the radiation. Fiducials are known however to migrate and this can limit the accuracy of the treatment if sufficient time is not allowed between implantation and treatment for the fiducials to stabilize.

Synchrony
The final technology of image guidance that the CyberKnife system can use is called the Synchrony system. The Synchrony system is utilized primarily for tumors that are in motion while being treated, such as lung tumors and pancreatic tumors. The synchrony system uses a combination of surgically placed internal fiducials, and light emitting optical fibers (markers) mounted on the patient skin. Since the tumor is moving continuously, to continuously image its location using X-ray cameras would require prohibitive amounts of radiation to be delivered to the patients skin. The Synchrony system overcomes this by periodically taking images of the internal fiducials, and predicting their location at a future time using the motion of the markers that are located on the patient's skin. The light from the markers can be tracked continuously using a CCD camera, and are placed so that their motion is correlated with the motion of the tumor. A computer algorithm creates a correlation model that represents how the internal fiducial markers are moving compared to the external markers. The Synchrony system is therefore continuously predicting the motion of the internal fiducials, and therefore the tumor, based on the motion of the markers. The correlation model can be updated at any time if the patient breathing becomes in any way irregular. The advantage of the Synchrony system is that no assumptions about the regularity or reproducibility of the patient breathing have to be made. To function properly, the Synchrony system requires that for any given correlation model there is a functional relationship between the markers and the internal fiducials. The external marker placement is also important, and the markers are usually placed on the patient abdomen so that their motion will reflect the internal motion of the diaphragm and the lungs.

RoboCouch
A new robotic six degree of freedom patient treatment couch called RoboCouch has been added to the CyberKnife which provides the capability for significantly improving patient positioning options for treatment.

Frameless
The frameless nature of the CyberKnife also increases the clinical efficiency. In conventional frame-based radiosurgery, the accuracy of treatment delivery is determined solely by connecting a rigid frame to the patient which is anchored to the patient’s skull with invasive aluminum or titanium screws. The CyberKnife is the only radiosurgery device that does not require such a frame for precise targeting. Once the frame is connected, the relative position of the patient anatomy must be determined by making a CT or MRI scan. After the CT or MRI scan has been made, a radiation oncologist must plan the delivery of the radiation using a dedicated computer program, after which the treatment can be delivered, and the frame removed. The use of the frame therefore requires a linear sequence of events that must be carried out sequentially before another patient can be treated. Staged CyberKnife radiosurgery is of particular benefit to patients who have previously received large doses of conventional radiation therapy and patients with gliomas located near critical areas of the brain. Unlike whole brain radiotherapy, which must be administered daily over several weeks, radiosurgery treatment can usually be completed in 1-5 treatment sessions. Radiosurgery can be used alone to treat brain metastases, or in conjunction with surgery or whole brain radiotherapy, depending on the specific clinical circumstances.
By comparison, using a frameless system, a CT scan can be carried out on any day prior to treatment that is convenient. The treatment planning can also be carried out at any time prior to treatment. During the treatment the patient need only be positioned on a treatment table and the predetermined plan delivered. This allows the clinical staff to plan many patients at the same time, devoting as much time as is necessary for complicated cases without slowing down the treatment delivery. While a patient is being treated, another clinician can be considering treatment options and plans, and another can be conducting CT scans.
In addition, very young patients (pediatric cases) or patients with fragile heads because of prior brain surgery cannot be treated using a frame based system.Also, by being frameless the CyberKnife can efficiently re-treat the same patient without repeating the preparation steps that a frame-based system would require.
The delivery of a radiation treatment over several days or even weeks (referred to as fractionation) can also be beneficial from a therapeutic point of view. Tumor cells typically have poor repair mechanisms compared to healthy tissue, so by dividing the radiation dose into fractions the healthy tissue has time to repair itself between treatments. This can allow a larger dose to be delivered to the tumor compared to a single treatment.

Comparison with other Stereotactic systems

Gamma Knife
One of the most widely known stereotactic radiosurgery systems is the Gamma Knife. The Gamma Knife was originally developed by Lars Leksell, and is manufactured by Elekta. John Adler, the inventor of the CyberKnife system spent time training with Lars Leksell in Stockholm at the Karolinska Institute in 1985. The GammaKnife system uses 201 Cobalt-60 sources located in a ring around a central treatment point ("isocenter"). The Gamma Knife system is equipped with a series of 4 collimators of 4mm, 8mm, 12mm and 16mm diameter, and is capable of accuracies of greater than a millimeter. The Gamma Knife system does however require a head frame to be bolted onto the skull of the patient, and is only capable of treating cranial tumors. The Gamma Knife accuracy is solely dependent upon the frame placement, and has no real time imaging capability. Some believe the Gamma Knife system is more accurate than Cyber Knife.The Cyberknife Society and Accuray maintain that there are no peer-reviewed published papers that establish Gamma Knife as being more accurate than CyberKnife.

Novalis
Another popular Stereotactic system is the Novalis produced by Brainlab. The Novalis radiosurgery system utilizes a small computer controlled micro Multi Leaf Collimator mMLC, that can produce many complicated shapes. The maximum radiation field size that the Novalis can produce is 98 mm x 98 mm, and the minimum is 3mm x 3mm allowing a considerable range of tumors to be treated. The Novalis system also has X-ray imaging using amorphous silicon flat panel X-ray detectors. A 2D/3D image fusion of the patient setup X-rays with digitally reconstructed radiographs from a planning CT scan quickly determines a correction vector for the patients position. Infrared fiducial markers attached to the patient then allow precise tracking of the correction vector's application to the patient's position via an infrared camera. Patient immobilization can also be performed framelessly using the patients internal anatomy as the frame of reference. An implanted marker based respiratory tracking option known as ExacTrac Gating is also an option.

Conventional Linac
Conventional X-ray therapy linear accelerators can be utilized for radiosurgery, either by the use of additional blocking cones or by a removable micro MLC system. Examples of removable micro MLC units are the Ergo from 3D line],the mMLC manufactured by Brainlab,and the AccuKnife produced by Direx.

Clinical uses
The CyberKnife system has FDA clearance for treatment of tumors in any location of the body. Some of the tumors treated include: pancreas,[ liver,prostate,Spinal Lesions, head and neck cancers,and benign tumors.
In 2008 actor Patrick Swayze was treated with Cyberknife radiotherapy.

Cyberknife worldwide locations
CyberKnife systems have been installed in over 150 locations worldwide including 100 hospitals in the United States. For example, in the US, they are installed at the Stanford University Medical Center (Blake Wilbur Cyberknife Center) and the Comprehensive Cancer Center at Stanford University, Georgetown University Hospital, UCSF Medical Center, St. Mary's of Michigan , Kennestone Hospital in Georgia, Baylor University Medical Center, the University of Pittsburgh, and CyberKnife of Southern California at Vista .
Stanford University has treated over 2,500 patients using the Cyberknife system, and worldwide over 40,000 patients have been treated.
There are 19 centers in Japan, 5 in China, 5 in South Korea, 5 in Taiwan ROC, 3 in France, 3 in Italy, 2 in Turkey, and 1 each in Germany, Greece, Spain,Netherlands, United Kingdom(due to open Feb 2009), India,Malaysia, Thailand and Vietnam.
Several Cyberknife video clips can be found on YouTube.



composite safety shoes


Neck Heat Massager


embroidered luggage tags


Rubber Bath Mat


Outdoor Resin Furniture


white wave granite


cordless car polisher


Wall-Mounted Air Conditioner


Metal Mesh Handbag


RJ45 Cable Tester


Plastic Cake Containers


industrial quilting machine


cotton beach towel


flat poly bags


Hydraulic Truck Crane


Bw CCD Camera


Modified Potato Starch


natural beta carotene


Foam Roller Cover


rimless eye glasses


Wooden Beaded Curtain


bamboo lamp shades


Strong Satellite Receiver


battery-operated led light


brush cosmetic kit


tissue roll holder


Feed Through Capacitors


Roller Blinds Bamboo