valve

Implanted Devices Detect High-Risk Heart Failure Patients

...e, high blood pressure, previous heart attacks and valve problems. An estimated 4.7 million Americans suffer from the condition, with 400,000 new cases reported each year. Roughly one-half of patients die within five years of diagnosis. Although there is no cure, drugs can improve the strength of the hear...

Why Christmas trees are not extinct

...ng through microscopic pores. But in conifers, the valve membranes have what is known as "torus-margo" stru...t they compensate for that because each individual valve is so much more efficient," Sperry says. "The flow resistance through a valve of a given size is 59 ...

Sun protection for plants

...s in these membranes. This unique nanoscale safety valve prevents plant damage by harmlessly dissipating the lethal excess radiation. This photoprotective process was found to be aided by a special carotenoid molecule called zeaxanthin and plants with higher levels of this molecule appear to be better prot...

Bone and cartilage growth to blame for heart valve disease

...ve rather than passive process that leads to heart valve degeneration, furthering a Northwestern researcher...the medical community's beliefs about the cause of valve disease. Heart valve disease is caused not by a 'wear and tear' phenomenon, but by an inflammatory ...

Chocolate, wine, spicy foods may be OK for heartburn, Stanford study finds

...e exerted by the esophageal sphincter, the control valve that keeps the food you've swallowed and your digestive acids down in your stomach, where they belong. Heartburn is most commonly caused when the esophageal sphincter relaxes more often than it is supposed to, allowing stomach acid to flow up into t...

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valve at Biology Products

micro 1 from Hudson Control Group, Inc.

...tomated instruments Optional, programmable 10-way valve for multiple reagents...

micro 10 from Hudson Control Group, Inc.

...tomated instruments Optional, programmable 10-way valve for multiple reagents...

T2-01 Diaphragm Pump from Parker Hannifin Corporation

...atures T Squareds patented high efficiency dynamic valve design. With the most compact, lightweight package in its performance range, T2-01 is ideal for use in portable air and gas applications. Available in single and twin head (T2-01 SH and T2-01TH). Delivers 1.5 and 2.0 liters per Watt @ 1 psi (SH and...

GEA Diessel Fermentation System from Niro Inc.

... ports and connections *flush-mounted tank bottom valve *double jacket *bottom-mounted disc or pitched-paddle agitators, with double mechanical seal and sterile flush, optional with magnetic drive *sterile sampling system *CIP / SIP design Process Automation: The system is controlled by an industry ...

SPD131DDA SpeedVac Concentrator from Thermo Scientific

...lay, dual independent timers, an automatic bleeder valve and a deep TEFLON coated chamber and vapor pathway. Adjustable Vacuum Level to prevent samples from freezing Chemically Resistant Dual Automatic Bleeder Valves TEFLON Tubing Radiant Glass Cover providing excellent chemical ...

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valve at Biology Technology

Brinkmann/Eppendorf SOP Standard Operating Procedure for Pipettes

...n ChemSaver Dispenser: Move the discharge valve toggle into the dispensing position (->). Disengage the volume setting button, push it into the middle position and leave it disengaged. Place the dispenser onto a cloth and autoclave the device. Ensure that the device does not ...

Chemical Stability of the Brinkmann Bottletop Dispenser and the Brinkmann Bottletop Buret

... PTFE/PFA Filling valve ETFE ETFE ETFE Discharge valve ETFE ETFE/PFA ETFE/PFA Discharge valve ...

Rapid Method Development With the BioLogic DuoFlow Chromatography System for the Purification of His-Tagged Proteins

... setup of the system included an SV5-4 select valve (5-port, 4-position) and an AVR9-8 select valve (9-port, 8-position), which were both designed for flexible automated operation. This ...

Biolistic Transfection of Organotypic Brain Slices

...flushed with helium through a custom-fitted access valve prior to pulling the final vaccuum so that...vacuum is drawn down to 23" Hg. The access valve is then opened and the chamber is refilled with helium from a second tank. Subsequently, the...

Optimization of Biolistic Transformation Using the Helium-Driven PDS-1000/He System

...o set the helium pressure at the regulator valve 200 psi over the pressure rating of the rupture ...disk being used, and to adjust the helium metering valve so that the helium flow rate into the gas acceleration tube occurs at a rate such that a ...

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valve at Biology Definition

Dialysis

... bag of dialysis fluid and then releases the twist valve located in the tip of their catheter; this permits...d, the lower, drain, bag is clamped off. The twist valve in the catheter is also closed. The clamp is then removed from the upper tubing, permitting dialysis...

valve at Biology Dictionary

Vena cava

...inus) ' right atrium (fossa ovalis) ' tricuspid valve ' right ventricle ' pulmonic valve ' ( pulmonary artery and pulmonary circulation) ... Full article >>> Oxygen -deple...

Tricuspid valve

tricuspid valve : a valve that passes blood from the right atrium into the right ventricle . t RNA : transfer RNA ; RNA ...

Translation

... amino acid sequence in a protein . tricuspid valve : a valve that passes blood from the right atrium into the right ventricle . Full article >>> ...

Sequence

... amino acid sequence in a protein . tricuspid valve : a valve that passes blood from the right atrium into the right ventricle . Full article >>> ...

Right atrium

...e right atrium . It flows through the tricuspid valve into the right ventricle . The term tricuspid refers to the three flaps of tissue that make up the valve. Full article >>> Human heart beats origin ate from the sinoatrial node (SA node) near the right atrium . Modified muscl...

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valve at Medicine News

Award for TTK Chitra heart valve prosthesis

...us technology 2001 for developing artificial heart valve prosthesis.It is a tilting disc valve design incorporating a metallic housing, which is integrally machined from a cobalt based wrought al...

Heart Surgery Is Getting Safer for the Old

...en-heart surgery such as coronary artery bypass or valve replacement at New York Presbyterian Hospital-Weill Medical College of Cornell University in New York City between a few years. The researchers followed up with the patients an average of two years later to determine their outcome and whether their c...

Defective heart valve causes problems

...searchers, a recent study shows that a leaky heart valve raises the risk of abnormal heart rhythms. In atri...of Texas, have now shown that having a leaky heart valve - separating the upper and lower heart chambers can lead to AF. Blood flows backwards into the up...

Heart and dental care

People with heart valve problems are generally advised to take antibiotics... the murmur is insignificant or is the result of a valve problem. If it is a valve problem, many patients should take antibiotics before a number of medical ...

Viagra for heart and lung patients

...y hypertension (caused by conditions such as heart valve disease, emphysema or bronchitis). Viagra was reported to prevent pulmonary hypertension but results were poorly presented. Even if researchers were confident in the results of the study, it is unclear how the effects of sildenafil in healthy youn...

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valve at Medicine Products

Needle Tip Bipolar Insert

...ion through the smokevac and nezhat-dorsey trumpet valve in conjunction with the universal instrument insert adapter and a 5 mm/28 cm probe tip....

Microplate Washers - ELx405 Microplate Washer

.... ELx405VR Auto Plate Washer: 96-well washing with valve module....

Horizontal-Vertical (H/V) Lumbar Valve Systems

The Horizontal-Vertical (H/V) lumbar valve system is the only differential pressure valve for lumbo-peritoneal shunting, which addresses orthostatic overdrainage....

Codman Hakim Programmable Valve (CHPV) Inline with Siphonguard

Codman Hakim Programmable valve Inline with siphonguard offers the ability to optimize the opening pressure of a shunt system before and after implantation. A shunted patient's condition will often change over the course of their treaent....

Codman Hakim Programmable Valve (CHPV)

Codman Hakim Programmable valve offers the ability to optimize the opening pressure of a shunt system before and after implantation. A shunted patient's condition will often change over the course of their treaent....

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valve at Medicine Technology

Cardiome And Astellas Announce Positive Results From ACT 2 Trial

...ysfollowing coronary artery bypass graft (CABG) or valve replacementsurgery. In the atrial fibrillation pop...rillation or atrialflutter occurring after CABG or valve replacement surgery.Approximately 30% of these patients have an episode of atrialarrhythmia followin...

DX-88 for Hereditary Angioedema Meets Primary and Secondary Endpoints in Phase 3 Trial (EDEMA3)

...diothoracicsurgery (CTS), including CABG and heart valve replacement or repairprocedures. Dyax identified DX-88 and other compounds in its pipeline usingits patented phage display technology, which rapidly selectscompounds that bind with high affinity and specificity totherapeutic targets. Dyax leverages ...

valve at Medicine Definition

Pathology

...w as a result of narrowing of the heart's outflow valve . Metaplasia occurs when repeated damage to the ... Endocarditis - Mitral regurgitation - Mitral valve prolapse - Mitral stenosis - Aortic valve stenosis - Aortic insufficiency - Pulmonary valve ...

valve at Medicine Dictionary

Ventricle

...... Full article >>> The tricuspid valve controls blood flow from the right atrium into the right ventricle . The pulmonary valve controls blood flow out of the right ventricle into the pulmonary artery (into the lungs ...

Vascular diseases

...eriosclerosis , coronary artery disease , heart valve disease , arrhythmia , heart failure , hypertension , orthostatic hypotension , shock , endocarditis , disease s of the aorta and its branches, ... Full article >>> Cardiovascular disease s are higher among persons with high...

Vaginal itching

...exual contact with an infected partner. tricuspid valve The heart valve between the right atrium and the right ventricle . Full article >>> For itching...

Uveitis

...tract] ... Full article >>> heart valve disease , typically aortic valve stenosis aortitis eye inflammation ( uveitis ) pulmonary fibrosis ... Full article >&...

Urinary Tract Infections

... septic arthritis ( joint infection ) heart valve infections urinary tract infections ... Full article >>>...

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