MedWorm provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest medical blog items that have been tagged with 'emission'. Sat, 03 Sep 2011 02:29:10 +0100 http://www.medworm.com/index.php?rid=4803532&cid=t_113304_151_f&fid=35805&url=http%3A%2F%2Ffeedproxy.google.com%2F%7Er%2Ftwelvestepfacilitation%2FwAgT%2F%7E3%2F5QZVMeMfsRM%2F Image via WikipediaWhy Are Men More Susceptible to Alcoholism?18 October 2010 ElsevierAlcohol is one of the most commonly abused substances, and men are up to twice as likely to develop alcoholism as women. Until now, the underlying biology contributing to this difference in vulnerability has remained unclear.A new study published in Biological Psychiatry reveals that dopamine may be an important factor.Researchers from Columbia and Yale studied male and female college-age social drinkers in a laboratory test of alcohol consumption. After consuming an alcoholic or non-alcoholic drink, each participant underwent a specialized positron emission tomography (PET) scan, an imaging technique that can measure the amount of alcohol-induced dopamine release.Dopamine has multiple functions in the br... Twelve Step Facilitation.com blogs http://www.medworm.com/rss/comments.php?id=4803532 Thu, 05 May 2011 21:45:28 +0100 4803532 http://www.medworm.com/index.php?rid=4525031&cid=t_113304_87_f&fid=39187&url=http%3A%2F%2Fgetbetterhealth.com%2Fdoes-cell-phone-use-stimulate-brain-activity%2F2011.02.26 We all know that using a cell phone can stimulate the brain to work a bit harder. “Mr. Skerrett? This is Dr. LeWine’s office. Do you have a minute to talk about your test results?” or “Dad, a bunch of kids are going to Casey’s house after the dance. Can I go?” But a new study published in JAMA is making me wonder what the energy emitted by the phone itself — not just the information it delivers — is doing to my brain. Here’s the study in a nutshell. Dr. Nora Volkow and her colleagues recruited 47 volunteers to have their brain activity measured twice by a PET scanner. Both times the volunteer had a cell phone strapped to each ear. During one measurement, both phones were turned off. During the other, one phone was turned on but muted so the volunteer didn’t know... Better Health blogs http://www.medworm.com/rss/comments.php?id=4525031 Sat, 26 Feb 2011 22:00:29 +0100 4525031 http://www.medworm.com/index.php?rid=4077601&cid=t_113304_151_f&fid=35805&url=http%3A%2F%2Ftwelvestepfacilitation.com%2Fdopamine-may-promote-male-drinking%2F Image via Wikipedia Why Are Men More Susceptible to Alcoholism? 18 October 2010 Elsevier Alcohol is one of the most commonly abused substances, and men are up to twice as likely to develop alcoholism as women. Until now, the underlying biology contributing to this difference in vulnerability has remained unclear. A new study published in Biological Psychiatry reveals that dopamine may be an important factor. Researchers from Columbia and Yale studied male and female college-age social drinkers in a laboratory test of alcohol consumption. After consuming an alcoholic or non-alcoholic drink, each participant underwent a specialized positron emission tomography (PET) scan, an imaging technique that can measure the amount of alcohol-induced dopamine release. Dopamine has multiple functi... Twelve Step Facilitation.com blogs http://www.medworm.com/rss/comments.php?id=4077601 Mon, 18 Oct 2010 15:51:46 +0100 4077601 http://www.medworm.com/index.php?rid=3082389&cid=t_113304_87_f&fid=36438&url=http%3A%2F%2Ffeedproxy.google.com%2F%7Er%2FCato-at-liberty%2F%7E3%2FEhrIgHk52wE%2F By Andrei IllarionovAs the Copenhagen Climate Conference is taking place, it is appropriate to clarify once again what is more or less accurately known about the climate of our planet and about climate change. Obviously, a brief post can not substitute for detailed studies of professionals in a variety of scientific disciplines – climatology, atmospheric physics, chemistry, geology, astronomy, and economics. However, a short post can summarize basic theses on the main trends in climate evolution, on its forecasts, and on its actual and projected effects. 1. The Earth’s climate is constantly changing. The climate was changing in the past, is changing now and, obviously, will be changing in the future – as long as our planet exists. 2. Climatic changes are largely cyclical in nature. T... Cato-at-liberty blogs http://www.medworm.com/rss/comments.php?id=3082389 Fri, 11 Dec 2009 22:33:41 +0100 3082389 http://www.medworm.com/index.php?rid=3067013&cid=t_113304_87_f&fid=36438&url=http%3A%2F%2Ffeedproxy.google.com%2F%7Er%2FCato-at-liberty%2F%7E3%2FyefUWEV1P1c%2F By Patrick J. Michaels25,000 bureaucrats, factota, hangers on, and representatives of various environmental organizations have just converged on Copehagen for the UN’s latest “Conference of the Parties (COP) to its infamous 1992 climate treaty. Expect a lot of heat, not much light, and a punt right into our next election. President Obama says that the US will agree to a “politically binding” reduction of our emissions of carbon dioxide to a mere 17% of 2005 levels by 2050. This will allow the average American the carbon dioxide emission of the average citizen in 1867. Obama’s pronouncement has stepped all over the toes of the US Senate, which really doesn’t want to vote on similar legislation this election year. Jim Webb, a democrat heretofore very loyal to the President recent... Cato-at-liberty blogs http://www.medworm.com/rss/comments.php?id=3067013 Tue, 08 Dec 2009 04:01:37 +0100 3067013 http://www.medworm.com/index.php?rid=2984913&cid=t_113304_122_f&fid=35068&url=http%3A%2F%2Fbrainwindows.wordpress.com%2F2009%2F11%2F11%2Fendogenous-dark-chromophore-imaging-via-modulated-simulated-emission%2F Here is an interesting paper, Imaging chromophores with undetectable fluorescence by stimulated emission microscopy, from Sunny Xie’s group.  They pump the sample with a excitation laser while simultaneously hitting it with a longer wavelength laser to induce stimuated emission. The pump laser is modulated at a high frequency which they can pick up and amplify with a lock-in amplifier. Theory and illumination schematic In two examples of imaging from a mouse ear, (above) shows the distribution of TBO, a photodynamic therapy drug, following drug administration, (below, red) shows the distribution of hemoglobin in blood vessles. How specific is the detection of endogenous chromophores?  They report that 60nm is the absolute detection limit, but this is for a pure chromophore in wa... Brain Windows blogs http://www.medworm.com/rss/comments.php?id=2984913 Thu, 12 Nov 2009 04:21:38 +0100 2984913 http://www.medworm.com/index.php?rid=2886413&cid=t_113304_87_f&fid=36438&url=http%3A%2F%2Ffeedproxy.google.com%2F%7Er%2FCato-at-liberty%2F%7E3%2Fs-Yd32ZixT8%2F A basic contention of developing countries (DCs) and various UN bureaucracies and multilateral groups during the course of International negotiations on climate change is that industrialized countries (ICs) have a historical responsibility for global warming.  This contention underlies much of the justification for insisting not only that industrialized countries reduce their greenhouse gas emissions even as developing countries are given a bye on emission reductions, but that they also subsidize clean energy development and adaptation in developing countries. [It is also part of the rationale that industrialized countries should pay reparations for presumed damages from climate change.] Based on the above contention, the Kyoto Protocol imposes no direct costs on developing countries and ... Cato-at-liberty blogs http://www.medworm.com/rss/comments.php?id=2886413 Tue, 13 Oct 2009 12:45:58 +0100 2886413 http://www.medworm.com/index.php?rid=552120&cid=t_113304_140_f&fid=35457&url=http%3A%2F%2Ffeeds.feedburner.com%2F%7Er%2FBattling-schizophrenia%2F%7E3%2F106317083%2F By Groshan Fabiola It is known that no single symptom is specific to schizophrenia, so, in order to put a diagnosis, there must be some conditions present. We can mention 3 conditions. A condition is about certain symptoms that are present for at least six months even in the absence of active flare-ups, and include symptoms like marked social withdrawal, peculiar behavior, vague and incoherent speech, and other symptoms of disturbed thinking. The second condition is about the presence of at least one active flare-up lasting a month or less, consisting of at least two characteristic symptoms, like hallucinations, delusions, disorganized thinking and other. The third condition is about particularly bizarre delusions or hallucinations that appear in patients even in the absence of other char... Battling-Schizophrenia blogs http://www.medworm.com/rss/comments.php?id=552120 Tue, 03 Apr 2007 14:03:26 +0100 552120