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Recent News and Articles on the Keywords: retrospective rubber + rubber + old  Related to the article below (Last Update: 5/5/2008)

Veteran Tripod Staffer Takes Retrospective Look
Trinity Tripod (subscription), CT - May 2, 2008
I fought to bring back the campus shuttle by telling a story about my drunk friend and a certain large piece of phallic-shaped rubber that he had chosen to ...
The galleries: Brave, bleak or maybe just beige
New Zealand Herald, New Zealand - Apr 23, 2008
It is called disputed (et al)/ National Park (sorry)/ 2008 and is made of: wood, cork, tarpaulin, Perspex, paper, speaker, rock, amplifier, rubber, ...

The Age
The brains tryst
The Age, Australia - Apr 25, 2008
"We're fascinated by bamboo, rubber, projections, mirrors and new ways to tie them together." BOOK artist Peter Lyssiotis creates limited-edition books that ...
Journey into the realm of pataphysics
Philadelphia Inquirer, PA - Apr 18, 2008
By Edith Newhall The most recent piece in Thomas Chimes' 2007 Philadelphia Museum of Art retrospective is now the earliest of his "Iambic Paintings. ...

Stuff.co.nz
Battle of the retro cars
Stuff.co.nz, New Zealand - Apr 14, 2008
Tyre supply is also a thorny issue and the replacement rubber isn't as cheap as a regular tyre, either. Some people argue the Mini is the most authentic of ...
Source: Google News

[CITATION] RETROSPECTIVE CEPHALOMETRIC ANALYSIS OF MANDIBULAR BONE ABSORPTION UNDER SILICONE RUBBER CHIN …
JA FRIEDLAND, PJ COCCARO, JM CONVERSE, JM Converse - Plastic and Reconstructive Surgery, 1976
... BONE ABSORPTION 145 RESULTS This retrospective study of ... of some bone absorption under
silicone rubber implants in ... 1. Cephalogram of a 22 year-old female with ...

… injuries caused by rubber bullets during the Israeli-Arab conflict in October, 2000: a retrospective … -
A Mahajna, N Aboud, I Harbaji, A Agbaria, Z … - The Lancet, 2002 - Elsevier
... during the Israeli-Arab conflict in October, 2000: a retrospective study. ... 4. Computed
tomography scan of 27-year-old man with blunt rubber-bullet injury of ...

Do pacifiers cause latex allergy? -
A Venuta*, P Bertolani, P Pepe, M Francomano, P … - Allergy, 1999 - Blackwell Synergy
... Among them, the frequency of use of rubber teats or pacifiers ... 3) made a retrospective
analysis of ... allergy development in a population of 5-year-old children ...

Windsurfer dermatitis from black rubber components -
D Tennstedt, JM Lachapelle - Contact Dermatitis, 1981 - Blackwell Synergy
... A retrospective anamnestic investiga- tion revealed that the wishbone ... Substitution
of black rubber by aluminum is an easy ... Case Report A 43-year-old woman had a ...

Cancer mortality among workers in the German rubber industry: 1981-91. -
SK Weiland, KA Mundt, U Keil, B Kraemer, T Birk, M … - Occupational & Environmental Medicine, 1996 - pt.wkhealth.com
... the active workers were 40 to 59 years old at the ... L, Gumaelius K, Holmlund L, Englund
A. Retrospective cohort study of two plants in the Swedish rubber industry ...

… application of an uncertainty taxonomy to risk assessments based on an epidemiology study of rubber … -
DM Byrd, ET Barfield - Environmental Health Perspectives, 1989 - JSTOR
... with benzene exposure at Ohio rubber hydrochloride plants ... The following formula for
retrospective case control evaluation ... absence of a thresh- old and Haber's ...

Comparison of Lead Complications with Polyurethane Tined, Silicone Rubber Tined, and Wedge Tip Leads … -
P KERTES, H MONO, G SLOMAN, J VOHRA, D HUNT - Pacing and Clinical Electrophysiology, 1983 - Blackwell Synergy
... series of 602 tined Jeads to a retrospective survey of ... lead in- sulation, which was
initially silicone rubber[SR ... One was an 84-year-old female with preoperative ...

Stiffness of the Distal Tip of Bipolar Pacing Leads -
JIM CAMERON, H MOND, G CIDDOR, K HARPER, J MCKIE - Pacing and Clinical Electrophysiology, 1990 - Blackwell Synergy
... index was created with the silicone rubber pacing leads ... From the retrospective clinical
analysis data of high threshold ... 8 had a high thresh- old exit block ...

Eosinophilia, respiratory symptoms and pulmonary infiltrates in rubber workers -
R Bascom - Chest, 1988 - Am Coll Chest Phys
... A case-control study using retrospective reviews of ... CASE REPORTS CASE 1 A
36-year-old white woman began ... included factorywork, but none in the rubber industry. ...

A Retrospective Cohort Study on Digestive Cancer in the Rubber Tire Industry in Shanghai
J CHEN, X WEI, X YOU - Journal of Occupational Health, 1997 - Journal@rchive
... Key words: Rubber industry, Retrospective cohort study, Cancers of ... age-specific
(5 years old) mortality rates ... produced footware and other rubber products until ...

Source: Google Scholar

'Retrospective Rubber' Remembers Its Old Identities

Researchers at the University of Rochester have developed a shape-memory rubber that may enable applications as diverse as biomedical implants, conformal face-masks, self-sealing sutures, and "smart" labels.

The material, described in the journal Advanced Materials, forms a new class of shape-memory polymers, which are materials that can be stretched to a new shape and will stay in that form until heated, at which time they revert to their initial shape.

Unlike conventional shape-memory polymers, however, the new material is transparent, rubbery, and most importantly, engineers will be able to control the speed at which it returns to its original shape. Other shape memory polymers use crystallization to hold a temporary shape, which often makes them opaque, hard, and brittle in their frozen states, and this can limit their use.

"At higher temperatures the material stretches like a rubber band, but, at lower temperatures, it stiffens up," says Mitchell Anthamatten, assistant professor of chemical engineering and inventor of the material. "This property can be used to temporarily hold the material in a deformed shape; and its original shape can be recalled by heating. Imagine an optical lens that can be triggered to change shape, a face-mask that can fit any user, or a biomedical implant that changes shape slow enough for a surgical procedure."

The new rubber functions differently than conventional shape-memory materials by using "sticker groups"—hydrogen bonding groups that form temporary bonds. These sticker groups break and reform constantly. It's akin to tearing a net apart only to find that new knots have formed between different strands. When the material is stretched, new bonds form that hold the material, temporarily, in its deformed shape. Creating the rubber with different amounts of sticker groups controls the rate at which the rubber returns to its original shape. With this control, Anthamatten envisions applications that today's shape-memory polymers simply can't fulfill.

"The pressure at which you hold together a sutured wound determines a lot about how it will heal," says Anthamatten. "This polymer could be made into a thread that responds precisely to body temperature, tightening the sutures to the perfect pressure."

Anthamatten is currently investigating how dyes diffuse through his networks. "We expect the rate of dye diffusion to increase with temperatures," says Anthamatten. This property may enable "smart" labels that account for time and temperature and can inform customers when products are about to expire. "We may not always have to rely on the expiration date. What if our milk was not refrigerated properly? What if the air conditioner failed for some time at the pharmacy? People want to know that their products are fresh."

One aspect of the clear rubber that surprised Anthamatten was how easy it is to make. "It's ridiculously simple," he says, "and we're fascinated by how small modifications lead to major changes in how the material behaves."
 
 
 
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