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Mid-infrared emission from InAs quantum dots, wells, and dots on well nanostructures grown on InP (100) by metal organic vapor phase epitaxy

Junji Kotani, Peter J. van Veldhoven, and Richard Notzel A detailed analysis to extend the emission wavelength of InAs/InP nanostructures is presented employing InAs quantum dots (QDs), InAs quantum wells (QWs), and a combination of InAs QDs and QWs grown on InGaAsP/InP (100) by metal organic vapor phase epitaxy. First the optimized growth conditions of I … [J. Appl. Phys. 106, 093112 (2009)] published Fri Nov 13, 2009. (Source: Journal of Applied Physics) Go to Source… Continue reading

Resequencing and copy number analysis of the human tyrosine kinase gene family in poorly differentiated gastric cancer

November 26, 2009 Gastric Obstruction No Comments

The tyrosine kinase (TK) family is an important regulator of signaling pathways that control a variety of physiological and pathological conditions, and a substantial proportion of TK genes are genetically altered in cancer. To clarify the somatic mutation profile of TK genes and discover potential targets for gastric cancer (GC) therapy, we undertook a systematic screening of mutations in the kinase domains of all human TK genes (636 exons of 90 genes) in 17 GC cell lines and 52 microdissected primary GCs with poorly differentiated histology. We identified 26 non-synonymous alterations (22 genes in total) that included 11 sequence alterations… Continue reading

Can Drug & Device Makers Innovate Themselves to Extinction?

November 25, 2009 Health News No Comments

A study of heart-attack patients published in the late 1980s was wildly successful. Researchers showed they could lower the heart-attack death rate to 8% from 13% by giving patients aspirin and a drug called streptokinase. These days, though, an 8% mortality rate would be disastrous; the rate in most studies of heart attack patients is somewhere around 4%.
That points to a challenge for companies developing new therapies for heart disease (and other well treated maladies): The better existing therapies are, the harder it is to come up with something that’s an improvement. An essay published in this week’s JAMA calls… Continue reading

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The American Nurses Association Releases New Position Statements On Pivotal Topics Affecting Nursing Practice

March 18, 2010

The American Nurses Association (ANA), the largest nursing organization in the U.S., has approved two instructive and interpretive policy documents produced by its Congress on Nursing Practice and Economics (CNPE): a revised position statement entitled Nurses’ Role in Capital Punishment, and an initial position statement entitled Just Culture. “ANA takes very seriously its obligation to provide thought leadership and guidance to nurses everywhere on matters of significant professional and ethical consequence,” commented ANA President Rebecca M. Patton, RN, MSN, CNOR…

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FDA Orders 2 Companies To Stop Marketing Unapproved Nitroglycerin Tablets

March 18, 2010

The U.S. Food and Drug Administration today ordered Glenmark Generics of Mahwah, N.J., and Konec Inc. of Tucson, Ariz., to stop marketing unapproved nitroglycerin tablets. The tablets are placed under the tongue to relieve chest pain or to stop a heart attack and are marketed in 0.3 mg, 0.4 mg, and 0.6 mg dosages. The FDA does not anticipate a supply problem for these products. Pfizer Inc. markets FDA-approved sublingual nitroglycerin tablets in the same strengths and is able to supply the market with approved products…

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RCN Union Learning Representatives Host Motivational Day For Health Care Staff, Wales

March 18, 2010

The Royal College of Nursing in Wales in partnership with a local nurse from Abertawe Bro Morganwg Local Health Board has organised an event for health care staff working within the NHS and independent sector at the Aberavon Hotel, Port Talbot on Monday, 1 March, 2010. This event was sponsored by the Welsh Union Learning Fund. The event is a motivational seminar for health care staff and in the spirit of partnership, invitations have been offered to other local union members. A selection of inspirational speakers will feature throughout the day…

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Improved liquid chromatography-tandem mass spectrometry method in clinical utility for the diagnosis of Cushing’s syndrome.

March 18, 2010

Authors: Fong BM, Tam S, Leung KS
Determination of urinary free cortisol is one of the first lines in screening for the diagnosis of Cushing’s syndrome where its measurement is mostly done by immunoassay. Although easy to perform, immunoassays suffer from the problem of assay interferences and are unable to measure cortisone levels. To enhance such techniques for clinical diagnosis, an improved liquid chromatography-tandem mass spectrometric (LC-MS/MS) method was developed for the simultaneous determination of urinary free cortisol and cortisone. The leftover urine samples from immunoassay were collected and subjected to facile solid-phase extraction cleanup. In the analysis of 130… Continue reading

RCN In Wales Supports Plans To Help Veterans

March 18, 2010

Royal College of Nursing Applauds Welsh Assembly Government’s Plan to Help Military Veterans Tina Donnelly, Director of the Royal College of Nursing in Wales, said: “The Royal College of Nursing in Wales is pleased that the Welsh Assembly Government is allocating additional funding to support our military veterans. Our military veterans have demonstrated unmatched dedication to public service and our government should be able to help them out in their time of need…

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Skin Cancer Epidemic Underrecognized, US Study

March 18, 2010

US researchers who analysed over a decade’s worth of statistics on non-melanoma skin cancers in the US (the country’s most common form of cancer) found they have been rising steadily every year, and concluded that their findings reveal the “most complete evaluation to date of the underrecognized epidemic of skin cancer in the United States”. A paper on the study, which was conducted by lead author Dr Howard W. Rogers, a dermatologist from Norwich, Connecticut, and colleagues, appears online in the March issue of the journal Archives of Dermatology…

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Nurses Call For Improvements To Dementia Care, UK

March 18, 2010

Commenting on the Public Accounts Committee report Improving dementia services in England – an interim report, Janet Davies, Executive Director of Nursing and Service Delivery at the Royal College of Nursing (RCN), said: “It is deeply concerning that dementia care is still not being dealt with as a priority. Training and education for healthcare staff working in all settings is absolutely vital if care for dementia patients is to improve. Greater investment is also needed for specialist dementia nurses, who provide invaluable support for dementia patients, their carers and families…

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Obama: Health Bill Debate Too Focused On ‘Washington Process’

March 18, 2010

Fox News’ Bret Baier interviewed the president this afternoon: “President Obama is not worried about the ‘procedural’ debate over whether House Democratic leaders should go ahead with a plan to approve health care reform without a traditional vote … ’What I can tell you is that the vote that’s taken in the House will be a vote for health care reform.’” Fox has video of the interview (3/17).

Reuters: “Party leaders are considering using a complicated process to avoid a direct vote on the Senate-passed bill, which is unpopular with House Democrats. Instead, they would declare the Senate bill passed… Continue reading

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