New findings of researchers from the University of Modena and Reggio Emilia (Mauro Mandrioli, Valentina Monti and Gian Carlo Manicardi) show that in aphids the two X chromosomes have a different inheritance. The study was published in Comparative Cytogenetics. Aphids are insects with a sex determination model based on the presence of two X chromosomes (XX) in females and a single X chromosome (XO) in males. Previous studies suggested that X chromosome loss during male determination was random and that both X chromosomes have the same probability to be inherited in males. ...

Researchers at Stanford's Jasper Ridge Biological Preserve often encounter signs of mountain lion activity, from lion scat to the occasional deer carcass covered with leaves. But few have actually caught a glimpse of the shy feline. Now, images captured by remote wildlife cameras confirm that mountain lions (also called pumas or cougars) make regular visits to Stanford's 1,189-acre preserve in the hills five miles west of the main campus. Since September 2009, a network of motion-activated infrared cameras has recorded more than 40 photographs and videos of mountain ...

Biological invasions, i.e. the spread of introduced, non-native species, not only serve as ecological model systems, but also bring out the importance of economic activities on ecological processes. Two recent books have shown the extent and variety of the interaction of economics with invasion science and also the variety of approaches to tackling these problems. Three researchers, lead by Mark Williamson from the University of York, England, argue in the latest issue of the open access journal NeoBiota that the ecological and economic dimensions of the problem of invasive ...

Cities are generally regarded as hostile for wildlife and urbanization a dramatic form of destruction of natural habitats. Still, they are far from dead zones. Their biodiversity may even exceed that of surrounding landscapes, owing to heterogeneous environments and frequent localization in naturally rich areas that historically supplied diverse resources for their human inhabitants. "This is definitely the case of the city of Prague, Czech Republic", says the lead author Prof. Vojtěch Jarošík of the study published in the open access journal NeoBiota. "Prague contains ...

The company smartphone, the private cellphone, keys for house and car, wallet – the objects we carry around with us every day are becoming more numerous all the time. Which is why many people also use their business smartphone for personal purposes. It may be convenient, but employees and the IT department have different interests: most employees would prefer unlimited use of their smartphones, installing and using whatever programs they like. But this can also open the door to hackers in search of ways of attacking. As a result, IT departments often try to limit the use ...

The farmer casts a worried gaze at his potato field: where only recently a lush green field of plants was growing, much of the foliage has now turned brown – presumably the result of a fungal disease. Usually, by the time the disease becomes visible, it is already too late. The course of the disease is then so advanced that there is little the farmer can do to counteract the damage done. To determine early on whether and how severely his plants are diseased, he would have to submit samples to a laboratory on a regular basis. There, researchers usually employ the ELISA method, ...

It is 7:30 a.m. and high time she left the house; she mustn't be late for her 8 o'clock appointment. But the young lady still feels the need to check that she closed all her windows, because the forecast is for thunderstorms that afternoon. Later, in the car, she realizes that she forgot to check one of the rooms when she went round the house. In situations like this, window contacts can make life easier and give peace of mind. These little electronic helpers are fitted onto window handles, and they can tell from the position of the handle whether the window is wide open, ...

Many of you might know that Congenital Dyserythropoietic Anemia type II (CDA II) is a rare blood disorder, due to a failure in final part of erythropoiesis. What will surprise you is the fact that some mutations responsible for the disease can be tracked 3.000 years back. A study led by the ENERCA member Prof. Achille Iolascon, from CEINGE Advanced Biotechnologies (Naples, Italy) and the University of Naples Federico II, analyzes two mutations (E109K and R14W) of the SEC23B gene and discovers one of them is responsible for the higher frequency of CDA II in Italian population. ...

A new University of Guelph study shows that gray jays hoping to survive and reproduce through Canada's harsh winters need to be able to store food in the right kinds of trees. The study appears in Oecologia and was co-authored by Prof. Ryan Norris, Department of Integrative Biology; Brian Kielstra, an undergraduate student in the Department of Geography; and Dan Strickland, retired chief naturalist of Algonquin Park in Ontario. Unlike most birds that migrate for winter, gray jays are year-round residents in the Canadian boreal forest. In winter, they rely on berries, ...

Contrary to the traditional views of the music industry, removal of digital rights management (DRM) restrictions can actually decrease piracy, according to new research from Rice University and Duke University. Marketing professors Dinah Vernik of Rice and Devavrat Purohit and Preyas Desai of Duke used analytical modeling to examine how piracy is influenced by the presence or absence of DRM restrictions. They found that while these restrictions make piracy more costly and difficult, the restrictions also have a negative impact on legal users who have no intention of ...

Parents of young caffeine consumers take heed: that high-calorie energy drink or soda might present more than just obesity risk. In fact, according to a double-blind, placebo-controlled study that examined responses to stimulants, an individual's subjective response to caffeine may predict how he or she will respond to other stimulant drugs, possibly reflecting differences in risk for abuse of other more serious drugs of abuse, such as amphetamine and cocaine. The new findings are reported in the November issue of the journal Drug and Alcohol Dependence by Stacey Sigmon, ...

AMHERST, Mass. – Using one of the most sensitive neutrino detectors on the planet, an international team including physicists Laura Cadonati and Andrea Pocar at the University of Massachusetts Amherst are now measuring the flow of solar neutrinos reaching earth more precisely than ever before. The detector probes matter at the most fundamental level and provides a powerful tool for directly observing the sun's composition. Pocar, Cadonati and colleagues report in the current issue of Physical Review Letters that the Borexino instrument has now measured with high precision ...

Monaco Yacht Show 2011 marked the end of the summer season in the Mediterranean, and charter yachts are readying to head towards warmer climates. Second in size only to the combined charter grounds of the Eastern and Western Mediterranean, the Caribbean and the Bahamas offer over 10,000 islands, islets, reefs and cays cruising. Luxury charter yachts in the Caribbean - M/Y Seven Sins - launched in 2005, Seven Sins has a proven charter record for delivering excellence at sea. Cherry wood has been chosen to give the interior a warm and welcoming feel whilst Indonesian ...

For immediate release – October 7, 2011 – (Toronto) – A new study from the Centre for Addiction and Mental Health has found evidence that a specific gene is linked to suicidal behaviour, adding to our knowledge of the many complex causes of suicide. This research may help doctors one day target the gene in prevention efforts. In the past, studies have implicated the gene for brain-derived neurotrophic factor (BDNF) in suicidal behaviour. BDNF is involved in the development of the nervous system. After pooling results from 11 previous studies and adding their own study ...

Friday, October 7, 2011, Cleveland: Researchers have discovered a cellular pathway that promotes inflammation in diseases like asthma, rheumatoid arthritis, psoriasis, inflammatory bowel disease, and multiple sclerosis. Understanding the details of this pathway may provide opportunities for tailored treatments of inflammatory and autoimmune diseases. Discovery of this pathway was the work of an active collaboration between Xiaoxia Li, Ph.D., and Thomas Hamilton, Ph.D., Department Chair, both of the Department of Immunology at Lerner Research Institute of Cleveland Clinic. ...

BATON ROUGE – A major concern related to the Deepwater Horizon oil spill of 2010 was the impact on people living in coastal areas. News reports provided anecdotal evidence that those living along the coast and reliant on the fishing or oil and gas industries for their livelihoods were very distressed and worried about the impact of the spill on their future. Two decades of social science research has reported that people who are more attached to their communities are better off. They are happier, less depressed and physically healthier than those who have weak attachments ...

A series of novel imaging agents could make it possible to "see" tumors in their earliest stages, before they turn deadly. The compounds, derived from inhibitors of the enzyme cyclooxygenase-2 (COX-2) and detectable by positron emission tomography (PET) imaging, may have broad applications for cancer detection, diagnosis and treatment. Vanderbilt University investigators describe the new imaging agents in a paper featured on the cover of the October issue of Cancer Prevention Research. "This is the first COX-2-targeted PET imaging agent validated for use in animal models ...

Award-winning tour operator Israel Tour Connection, LLC (ITC) has announced its 2011 Interfaith Israel Adventure. Led by Rabbi Leonard Cahan and Pastor Jan Lookingbill, the Interfaith Israel Adventure is designed to deepen mutual respect and understanding between followers of both faiths. Rabbi Cahan and Pastor Lookingbill strive to make Israel come alive for visitors of all ages with their collective energy, knowledge, creativity, and experience. ITC's Interfaith Israel Adventure caters to Jewish and Christian individuals, as well as interfaith couples and families. ...

A new study presents the first evidence that a basic sense of fairness and altruism appears in infancy. Babies as young as 15 months perceived the difference between equal and unequal distribution of food, and their awareness of equal rations was linked to their willingness to share a toy. "Our findings show that these norms of fairness and altruism are more rapidly acquired than we thought," said Jessica Sommerville, a University of Washington associate professor of psychology who led the study. "These results also show a connection between fairness and altruism in ...

The largest survey to date of distant exploding stars is giving astronomers new clues to what's behind the Type Ia supernovae they use to measure distances across the cosmos. These stellar explosions helped astronomers conclude more than a decade ago that dark energy is accelerating the expansion of the universe, and this week earned the discoverers -- including UC Berkeley physicist Saul Perlmutter -- the 2011 Nobel Prize in Physics. But what caused them was a mystery. Many astronomers thought white dwarf stars were pulling matter from their normal stellar companions ...

Research sometimes means looking for one thing and finding another. Such was the case when biology professor Alice Gibb and her research team at Northern Arizona University witnessed a small amphibious fish, the mangrove rivulus, jump with apparent skill and purpose out of a small net and back into the water. This was no random flop, like you might see from a trout that's just been landed. The rivulus seemed to know what it was doing. They hadn't expected to see that behavior, even from a fish known to spend time out of the water. So before long, what began as a study ...

The creators of Economic Gateway and Economic GateKeeper have partnered with Mark Lautman to provide local community leaders and economic developers a forum to discuss new ways to think about, plan, and measure economic development. Golden Shovel is known for helping communities improve their online economic development presence with social media and professional websites, and Mark Lautman is at the forefront of helping communities change their economic development paradigm. Together, Golden Shovel and Mark Lautman, will host a series of webinars designed to help community ...

Results of a study by a group of University of Notre Dame researchers represent a promising step on the road to developing new drugs for a variety of neurological diseases. The group from the University's Departments of Chemistry and Biochemistry and Biological Sciences and the Friemann Life Sciences Center focused on the design, synthesis and evaluation of water-soluble "gelatinase inhibitor" compounds. Gelatinases, a class of enzymes, have been implicated in a host of human diseases from cancer to cardiovascular conditions and in particular neurological conditions ...

CHAMPAIGN, Ill. -- University of Illinois physicists have experimentally demonstrated for the first time how three-dimensional conduction is affected by the defects that plague materials. Understanding these effects is important for many electronics applications. Led by physics professor Brian DeMarco, the researchers achieved complete localization of quantum matter waves in three dimensions, first theorized roughly half a century ago. The group published its findings in the Oct. 7 issue of the journal Science. Defects in materials are inevitable, but their effects ...

Viaden Gaming Ltd., one of the premier online casino software developers announced the updated online casino release with feature-rich functionality, new payment options and multiple usability improvements. Here are the major updates that are pushed live with the new version: Featured Games To enable the operators to promote the hottest and newest games, the recent online casino solution involves the 'Featured Games' option. From now on the players visiting the web-site will have the opportunity to quickly access the games recommended by the casino. User Analytics ...