El paisaje de ciudades y poblados de Cuba ha cambiado: donde antes solo se veían consignas políticas, hoy florecen letreros luminosos ofreciendo lo mejor de la comida local e internacional y hospedaje con aire acondicionado, muestras de un emergente sector privado impensado hasta hace muy poco. A...

Un equipo de investigadores del Instituto de Ciencias de la Vid y del Vino (ICVV) ha identificado una sustancia natural para combatir plagas agrícolas que evita el uso de pesticidas, gracias a la interacción entre los genomas de una planta y un ácaro. Se trata de un azúcar inocua para los humanos,...

A recent study shows that a root-knot nematode species previously considered indigenous to Europe was actually introduced from Asia, and that its host range is wider than previously thought. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/m...

Seventy year olds who don't frequently visit the doctor have something unexpected in common -- most played high school sports. They were active on a team over 50 years ago and are more likely to be active into their late 70s. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/F...

The quality of cava depends on technical factors such as fermentation, ageing and bottling processes, which usually remain stable for years. Researchers from Malaga University (Spain) have discovered that oscillations in the North Atlantic -that affects European climate- also have an effect on the...

The results of a field trial with genetically modified poplar trees in Zwijnaarde, Belgium, shows that the wood of lignin modified poplar trees can be converted into sugars in a more efficient way. These sugars can serve as the starting material for producing bio-based products like bio-plastics...

Investigadores de la Universidad del País Vasco (UPV/EHU) y la Universidad Autónoma de Nayarit (México) han detectado que el consumo de alcohol los fines de semana puede afectar al ADN. Este estudio preliminar ha contado con la colaboración de estudiantes universitarios mexicanos, en los que se analizó el daño oxidatvo por la...

UPV/EHUko ikertzaile batek, Mexikoko Nayarit-eko Unibertsitate Autonomoaren lankidetzarekin, zuzendutako aurretiazko azterlan batek adierazten du asteburuetan alkohola edateak DNAri eragin diezaiokeela. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Un estudio preliminar dirigido por una investigadora de la UPV/EHU en colaboración con la Universidad Autónoma de Nayarit, en México, indica que el consumo de alcohol los fines de semana puede afectar al ADN. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

A preliminary study led by a UPV/EHU-University of the Basque Country researcher in collaboration with the Autonomous University of Nayarit, in Mexico, indicates that weekend alcohol consumption may affect DNA. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Desde el guardián del famoso experimento de la gota de brea al inventor del ratón de ordenador. Varios investigadores, entre los que también se incluyen tres premios Nobel de Medicina, uno de Física y uno de Química, han fallecido a lo largo del 2013. Las contribuciones de estos expertos han servido para sentar las bases...

La calidad del cava depende de factores técnicos como procesos de fermentación, envejecimiento y embotellado, que suelen mantenerse estables durante años. Investigadores de la Universidad de Málaga han descubierto que las oscilaciones del Atlántico Norte –que repercute en el clima de Europa– influyen también en los atributos de...

Determinar el medicamento preciso y sus dosis es posible mediante análisis genómico Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Por toda Abiyán, la capital económica de Costa de Marfil, grandes grúas, utilizadas en la construcción de nuevos edificios y carreteras, salpican el horizonte de la ciudad de más de cinco millones de habitantes. La urbe, dividida en dos por una laguna, tendrá en breve una segunda terminal portuaria, un cuarto puente, varios...

Es un importante déficit que refleja desinterés institucional por formar especialistas, alerta experto mexiquense Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

A short fragment of chloroplastic DNA as a "barcode" for species identification within a group of palm species, including the economically important date palm Phoenix dactylifera, has been proposed by researchers from IRD, France, and CRA-FSO, Italy. Species and hybrids recognition is important for the protection of endemic or...

The ability to sequence the DNA of plants and animals has revolutionized many areas of biology, but the unstable character of DNA poses difficulties for sequencing specimens in museum collection over time. In an attempt to answer these issues, a recent study of 31 target spider species from the...

An Iranian ornithologist used a "ready for use" museum collection to DNA barcode 147 bird species from The Netherlands. While fast and accurate identifications could be confirmed for most species, gulls and skuas showed fuzzy boundaries and, in contrast, Lesser Whitethroats diversified in more than...

Marine mammals are flagship and charismatic species. Attractive for the general public, nowadays, they are also considered as highly relevant sentinel of the marine realm as indicator for environmental change. A recent paper in the open access journal Zookeys suggests that the use of DNA barcoding in conjunction with a...

Schizophrenia was only recognized as a medical condition in the past few decades, and its exact causes remain unclear. Now a Tel Aviv University researcher has discovered that an important cell-maintenance process called autophagy is reduced in the brains of schizophrenic patients. The findings advance the understanding of...

A new technique for studying the structure of the childhood RSV virus and its activity in living cells could help researchers unlock the secrets of the virus, including how it enters cells, how it replicates, and perhaps why certain lung cells escape the infection relatively unscathed. Fuente :...

Recent data shows that more than 500,000 women in the US report drinking during pregnancy, with about 20 percent of this population admitting to binge drinking. Even one episode of heavy drinking can lead to the collection of birth defects known as fetal alcohol syndrome. Fuente :...

Most large, clinical trials of vitamin supplements, including some that have concluded they are of no value or even harmful, have a flawed methodology that renders them largely useless in determining the real value of these micronutrients, a new analysis suggests. These flawed findings will persist until the approach to...

It's taken nearly 200 years, but scientists in Arizona and Europe have teased out how the molecular switch for sex gradually and adaptively evolved in the honeybee. Fuente : http://www.eurekalert.org/pub_releases/2013-12/asu...

A study from the University of Colorado School of Medicine shows patients with Medicaid insurance seeking care in an emergency department may be driven by lack of alternatives instead of the severity of their illness. Fuente : http://www.eurekalert.org/pub_releases/2013-12/uoc...

A recent study shows that a root-knot nematode species previously considered indigenous to Europe was actually introduced from Asia, and that its host range is wider than previously thought. The newly discovered invasive species was described in the open access journal ZooKeys. Fuente :...

A study begun in Mexico with the collaboration of university students analyzed the effect of weekend alcohol consumption on the lipids comprising cell membrane and its genetic material, i.e. DNA. Until now, the damage to the packaging of nuclear material in the early stages of alcohol abuse has...

Fructose, the sugar often blamed for the obesity epidemic, does not itself have any impact on an emerging marker for the risk of cardiovascular disease known as postprandial triglycerides, new research has found. Fuente : http://www.eurekalert.org/pub_releases/2013-12/smh...

A team of researchers from the Department of Electrical & Computer Engineering at the National University of Singapore Faculty of Engineering has developed a new Magnetoresistive Random Access Memory technology that will boost information storage in electronic systems. The innovative technology...