http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. A blockbuster study in which US researchers reported that they had turned human skin cells into embryonic stem cells contained errors, its lead author has acknowledged. http://phys.org/news288548751.html Biology Thu, 23 May 2013 17:26:02 EST news288548751 When humans have parasites, the organisms live in our bodies, co-opt our resources and cause disease. However, it turns out that parasites themselves can have their own co-habitants. http://phys.org/news271518454.html Biology Wed, 07 Nov 2012 17:00:25 EST news271518454 After a two-day games hack in which scientists and games developers came together to create video games from doctoral research, a bacterial shoot-em-up game, 'Dysbiosis', has emerged as the winner of the Wellcome Trust's Gamify Your PhD project. http://phys.org/news266826757.html Technology Fri, 14 Sep 2012 07:32:45 EST news266826757 The world's first artificial insemination of crocodiles is one step closer thanks to a novel project between The University of Queensland (UQ) and a central Queensland farmer. http://phys.org/news265352699.html Biology Tue, 28 Aug 2012 06:05:08 EST news265352699 Researchers in the Czech Republic, Spain and the United Kingdom have successfully identified the cellular components and mechanisms that play a role in the proliferation of myxozoa, tiny aquatic parasites responsible for diseases in commercially valuable fish. Presented in the journal PLoS ONE, the study's findings shed light on the motility of myxozoa's proliferative states and their reproductive process. http://phys.org/news254392448.html Biology Mon, 23 Apr 2012 09:50:05 EST news254392448 (PhysOrg.com) -- Geoffrey M. Attardo was one of those little boys who made pets of the spiders outside his bedroom window, feeding them and watching as they spun intricate webs. Age has not diminished his fascination with the insect/arthropod world. http://phys.org/news248085526.html Biology Fri, 10 Feb 2012 08:39:09 EST news248085526 No, this isn't Jurassic Park. Researchers at the Johns Hopkins University School of Medicine with help from an amateur fossil hunter in College Park, Md., have described the fossil of an armored dinosaur hatchling. It is the youngest nodosaur ever discovered, and a founder of a new genus and species that lived approximately 110 million years ago during the Early Cretaceous Era. Nodosaurs have been found in diverse locations worldwide, but they've rarely been found in the United States. The findings are published in the September 9 issue of the Journal of Paleontology. http://phys.org/news235212225.html Other Sciences Wed, 14 Sep 2011 09:43:57 EST news235212225 Researchers at Weill Cornell Medical College have shown that it is possible to immunize mammals to control fertility. They say their technique could possibly be used on other mammals -- including humans -- because fertility hormones and their receptors are species-non-specific and are similar in both females and males. For pets, the technique could be an alternative to castration and adverse effects of hormone administration. http://phys.org/news220797082.html Medicine & Health Thu, 31 Mar 2011 13:31:38 EST news220797082 A strategy developed by Massachusetts General Hospital (MGH) researchers to shield the ovaries of female mammals from the damaging effects of radiation and chemotherapy has passed an important milestone. A collaborative study with investigators from Oregon Health and Sciences University (OHSU), published online in the journal Fertility and Sterility, reports that brief preexposure of the ovaries to an FDA-approved agent called FTY720 preserved the fertility of female rhesus monkeys exposed to potentially lethal doses of radiation. All of the treated animals have had successful pregancies and delivered healthy offspring. http://phys.org/news217605404.html Medicine & Health Tue, 22 Feb 2011 13:57:08 EST news217605404 Researchers at the University of Granada (UGR) have studied the natural history and conservation status in Spain of the only known population of Polygala balansae in Europe, a thorny bush that can grow up to 1.5 metres high, which was previously thought to be exclusive to Morocco. The team of scientists is calling for it to be protected and included on the list of threatened species. http://phys.org/news192189229.html Biology Tue, 04 May 2010 11:30:01 EST news192189229 Cancer of the lower esophagus develops almost exclusively in patients with Barrett's esophagus, an otherwise benign complication of esophageal reflux that affects approximately 3 million Americans. Although the prognosis of patients diagnosed with esophageal cancer is poor, the chances of successful treatment increase significantly if the disease is detected at an early dysplastic stage. http://phys.org/news190290448.html Medicine & Health Mon, 12 Apr 2010 13:00:01 EST news190290448 Previously unobservable events occurring between insemination and fertilization are the subject of a groundbreaking new article in Science magazine (March 18) by Mollie Manier, John Belote and Scott Pitnick, professors of biology in Syracuse University's College of Arts and Sciences. By genetically altering fruit flies so that the heads of their sperm were fluorescent green or red, Belote and his colleagues were able to observe in striking detail what happens to live sperm inside the female. The findings may have huge implications for the fields of reproductive biology, sexual selection and speciation. http://phys.org/news188138555.html Biology Thu, 18 Mar 2010 14:00:06 EST news188138555 A new research report published in the December 2009 print issue of The FASEB Journal could one day give men similar type of control over their fertility that women have had since the 1960s. That's because scientists have found how and where androgenic hormones work in the testis to control normal sperm production and male fertility. This opens a promising avenue for the development of "the pill" for men. The discovery also offers hope to those who cannot have children because of low sperm counts. Although the research was conducted in mice, a similar effect is likely to obtain in other mammals, such as humans. http://phys.org/news178811924.html Medicine & Health Mon, 30 Nov 2009 13:59:28 EST news178811924 Healthy, normal-weight women pregnant with twins should gain between 37 and 54 pounds, according to research from a Michigan State University professor who helped shape the recently released national guidelines on gestational weight gain. http://phys.org/news167407315.html Medicine & Health Tue, 21 Jul 2009 15:02:27 EST news167407315 Researchers from Weill Cornell Medical College have published results showing that a new contraceptive device may also effectively block the transmission of the HIV virus. Findings show that the device prevents infection by the HIV virus in laboratory testing. The promising results are published in the most recent issue of the journal AIDS. http://phys.org/news161968483.html Medicine & Health Tue, 19 May 2009 16:15:29 EST news161968483 Two Oregon State University researchers have uncovered a pattern of distrust - and sometimes outright antagonism - among physicians at hospitals and midwives who are transporting their home-birth clients to the hospital because of complications. http://phys.org/news161277224.html Medicine & Health Mon, 11 May 2009 16:14:21 EST news161277224 University of Nevada School of Medicine scientists in the Department of Physiology and Cell Biology have discovered insight into the reproductive workings of the male sex chromosome that may have significant implications for male infertility and contraception. http://phys.org/news158502651.html Biology Thu, 09 Apr 2009 13:31:21 EST news158502651 (PhysOrg.com) -- A researcher in Penn State's College of Agricultural Sciences, collaborating with researchers at the University of Pennsylvania's School of Veterinary Medicine, has identified for the first time a critical growth factor that stimulates the stem cells that produce sperm to thrive and renew themselves. http://phys.org/news157137009.html Medicine & Health Tue, 24 Mar 2009 18:10:35 EST news157137009 (PhysOrg.com) -- A pregnant fossil fish at the Natural History Museum in London has shed light on the possible origin of sex, according to a study published in Nature today by an international team including Museum scientists. The fossil is an adult placoderm, an extinct group of armoured fish, and it contains a 5cm-long embryo. It is dated to the Upper Devonian period 350 million years ago and was found in the Gogo formation of western Australia. http://phys.org/news154793593.html Biology Wed, 25 Feb 2009 14:14:12 EST news154793593