Ravi

Physiological effects of reduced gravity on bacteria

An article in Journal of Applied Microbiology investigates how bacteria respond when they are subjected to environmental alterations, such as those of space stations, which feature lowered effects of gravity. "Intra-specific differences in bacterial responses to modeled reduced gravity" by Paul W. Baker and Laura G. Leff describes differences in bacterial responses to reduced gravity and h...

Brain Scan Study of Smokers Reveals Signature of Craving

Not all smokers are alike when it comes to cravings, and a new study conducted by researchers at Duke University Medical Center suggests the difference may lie in their brains' sensitivity to drug cues. The researchers found that smokers who report a greater urge to smoke after a period of abstinence also exhibit stronger brain activity after viewing smoking-related images, such as others smoking...

'Pinball protons' created by ultraviolet rays and other causes can lead to DNA damage

Researchers have known for years that damaged DNA can lead to human diseases such as cancer, but how damage occurs--and what causes it--has remained less clear. Now, computational chemists at the University of Georgia have discovered for the first time that when a proton is knocked off one of the pairs of bases that make up DNA, a chain of damage begins that causes "lesions" in the DNA. T...

Paramecia adapt their swimming to changing gravitational force

For many single-celled organisms living in water, the force is always against them. The classic example is the slipper-shaped paramecium, which consistently swims harder going up than going down, just to keep from sinking. Now physicists Karine Guevorkian and James Valles of Brown University have worked out a way to turn gravity on its head and see how the creatures respond. The researcher...

Hormone linked to brain's cravings for food and other energy sources

Ghrelin, a hormone produced in the stomach, induces food intake and operates through a brain region that controls cravings for food and other energy sources, researchers at Yale School of Medicine report in the October 19 online issue of The Journal of Clinical Investigation. Ghrelin was previously associated with growth hormone release, appetite, learning, and memory and has now been link...

Ravi at Biology Products

UltraLink Immobilized NeutrAvidin from Pierce Biotechnology, Inc.

Description:When nonspecific binding is a problem in your application, Pierce offers a variety of immobilized NeutrAvidin products as superior alternatives to avidin or streptavidin. NeutrAvidin is a modified avidin derivative that combines several key features to provide a biotin-binding protein with exceptionally low nonspecific binding properties. NeutrAvidin does not contain carbohydrate and has an ideal...
Company:Pierce Biotechnology, Inc.

UltraVIEW Upgrade from Andor Technology

Description:Have you bought a Perkin Elmer UltraVIEW system and want to enjoy the sensitivity of using the Andor iXon and iQ software? No problem. Our experienced team can give you that upgrade. You keep your existing microscope, lasers, Sutter filter wheel, Piezo Stage etc. and we will customise it to work with our precision controller unit and workstation... for a lot less than you think....
Company:Andor Technology

Ravi at Biology Technology

Inactivation of Contaminating Templates in PCR Using High Intensity Ultraviolet Light

Amplification of DNA through the polymerase chain reaction (PCR) is a highly sensitive method capable of copying millions of DNA molecules from just a single molecule. Because of the extreme sensitivity of this method, any carry-over product from previous reactions can result in false positiv...

New gravity-flow column gives faster and simpler purification of histidine-tagged proteins

A. Bergh, M. Carlsson, A. Karlsson, and H. Lindgren GE Healthcare, Uppsala, Sweden Histidine-tagged proteins* can be quickly and simply purified on His GraviTrap columns prepacked with Ni Sepharose 6 Fast Flow without the need for a pump or purification system. The protein binding capacity (approx. 40 mg/column) is among the hi...

Ravi at Biology Dictionary

Gravitropism

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Ravi at Medicine News

Reducing TB With Ultraviolet Light

TB is a potentially fatal disease caused by bacteria. It can attack any part of the body but usually targets the lungs.// Researchers say beginning in the 1940s with the discovery of antiviral drugs, the disease slowly started to disappear in the United States. However, it began to reappear in the 1980s when the HIV epidemic surfaced. Researchers say TB is a co-infection of HIV.However,...

Sugar Cravings

Waking up late at night, when hunger strikes may seem a familiar story for many. Researchers say sugar cravings occur because people do // not eat enough throughout the day. People tend to get too hungry, and when this happens they tend to crave carbs and sweets . Studies show when people starve themselves or diet, they become depressed, irritable and angry. When these same people resum...

Cutting down on alcohol may reduce cigarette craving

In a study published in the journal Alcoholism: Clinical and Experimental, researchers of University// of Chicago have found out that smoking is related to alcohol consumption, and reduction to alcohol intake may help the smokers to smoke less. Scientists for the study think that people who want to quit smoking needs to abstain from drinking in order to experience the lesser effects of...

Smokers may differ in their cravings for smoking

A brain scan study of the smokers reveals that the smokers may differ in their cravings// for a smoke depending on their brain’s sensitivity to smoking. Researchers have found that the urge to smoke after a period of abstinence will vary in smokers according to the brain responses to the smoking habit. Researchers from the Duke University Medical Center had looked into the brain images...

Neurobiology Provides Answers To Block Memory-Related Drug Cravings

Drug addiction can be better handled following discovery of a novel chemical compound that blocks memory-related drug cravings. The finding has all the potential to be the basis of new therapies to aid drug-addiction recovery efforts // according to neurobiologists. Because exposure to people, places and objects previously associated with a drug habit can trigger overwhelming memory-b...

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Ravi at Medicine Products

Vitrasert Sterile Intraviteral Implant

Description:Vitrasert implant is a device that delivers ganciclovir intraocularly in patients with Aids-related Cytomegalovirus (CMV) Retinitis. This approach can significantly delay progression of CMV when compared with conventional intravenous treatment. The Vitrasert implant contains ganciclovir embedded in a polymer-based system that slowly releases the drug. The implant, surgically placed in the posteri...
Company:Bausch & Lomb Storz

Ultravist

Description:ULTRAVIST (iopromide) injection is a nonionic, iodinated, low-osmolar radiological contrast agent for intravascular administration. Introduced in the U.S. in 1995, ten years after becoming available in Europe, ULTRAVIST today is used in over 75 countries. It has established a positive clinical experience in more than 60 million patients worldwide....
Company:Berlex Inc.

Ultraview 1700 Central Monitor

Description:Ultraview 1700 Central Monitor...
Company:Spacelabs Medical

Ultraview SL 3800

Description:Ultraview SL 3800...
Company:Spacelabs Medical

Ultraview® Digital Telemetry

Description:Spacelabs offers an approach that allows your telemetry and step-down units to configure systems to meet their telemetry requirements. Our modular telemetry system data are integrated into the departmental or enterprise-wide information system....
Company:Spacelabs Medical

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Ravi at Medicine Technology

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Ravi at Medicine Dictionary

Urine specific gravity

Uri...

Myasthenia gravis

and a tendency to t...

Hyperemesis gravidarum

to...