Science Brazil  BRASIL 21/10/2014

Study reveals involvement of nitric oxide in the allergic process

According to the authors, nitric oxide promotes the differentiation of a specific type of defense cell – lymphocyte T helper 9 (Th9) – responsible for secreting a substance known as interleukin-9 (IL-9)

A study published in the journal Nature Communications has described the mechanisms through which nitric oxide – a gas naturally synthesized by endothelial cells, defense cells such as macrophages, and certain types of neurons – contributes to the exacerbation of allergic responses.

El gas que produce el organismo favorece la diferenciación de linfocitos del subtipo Th9, que generan una citocina capaz de agravar la respuesta inflamatoria (imagen linfocito: Wikimedia)
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Science Colombia  BOGOTÁ D.C. 07/10/2014

Blood plasma could help regenerate wounds and burns

The idea is for the biomaterial to not simply cover the wound to conceal the area

A blood plasma gel produced by UNal researchers could help the scarring process of deep wounds and sores produced from too much time lying down or sitting on a wheel chair. UNal Engineering Department Professor Rubén Darío Godoy says the purpose of their work is to produce a soft scarring process (from the esthetic standpoint) and to hasten the healing process.

Plasma sanguíneo. FOTO: UN.
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Science Brazil  BRASIL 03/10/2014

Ambiente celular é fator decisivo para desenvolvimento do câncer, diz pesquisadora

Alguns dos principais resultados foram apresentados ao público brasileiro durante a palestra na USP

Durante muito tempo o câncer foi visto como uma doença de origem fundamentalmente genética, ou seja, causada por mutações no DNA – herdadas ou adquiridas – que alteram a expressão dos genes e fazem as células se proliferarem descontroladamente.

 Mina Bissell of the Lawrence Berkeley National Laboratory gathers evidence to show that tissue architecture is as important as changes in DNA for tumor growth (image: Unicamp)
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Science Chile  ATACAMA 02/10/2014

ALMA, a natural laboratory for high-altitude medicine

Members of communities that have historically lived at high geographic altitude have succeeded in adapting to lower oxygen levels by changing habits such as diet in order to enjoy a better quality of life

Health experts took part in an important multidisciplinary meeting at the ALMA Observatory facilities, where they shared experiences and research on medicine at high geographic altitude, with a particular focus on a condition known as intermittent hypoxia –lack of oxygen– which has only been studied among mountain climbers.

Trabajadores realizando test de Figura Compleja Rey-Osterrieth a 5.000 metros de altitud en una sala presurizada. Crédito: ALMA(ESO/NAOJ/NRAO), Carlos Padilla
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Science Spain  ZAMORA 01/10/2014

New findings in the Archaeological site of El Castillon (North-western Spain) contribute to the understanding of the settlement’s inhabitation

Last fieldwork campaign at El Castillon revealed how dwelling was between the 5th and the 6th centuries.

The seventh campaign of excavation at the site located in the nearby of Santa Eulalia de Tabara (a small hamlet in the province of Zamora, Castilla y Leon) has been carried out this summer 2014. The results have helped to understand the urban development experimented in the settlement about the 5th and 6th centuries. Archaeologists have unearthed several dwelling structures which evolved along the time from one use to another, allowing scholars to reinterpret their functions.

En primer plano, con forma redondeada, restos del gran horno excavado en El Castillón.
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Science Mexico  NUEVO LEÓN 29/09/2014

TecSalud treats cardiac failure with spinal cord stimulation

Millions of people with heart problems could potentially enjoy better quality of life thanks to collaborative research by the Tecnológico de Monterrey's Cardiology Chair and Houston's Methodist Hospital

"One of our research's most important contributions was having identified a new technology to treat patients with terminal heart failure, exploiting the connections existing between the brain and the heart. This yields a new window for tapping this relationship in aid of cardiac function," stated TecSalud Dean Guillermo Torre-Amione, M.D., regarding the research conducted by the Tecnológico de Monterrey's Cardiology Chair in collaboration with Houston's Methodist Hospital.

Entre los beneficios que se empiezan a reflejar una vez aplicado el tratamiento médico son una mejor función del corazón, al disminuir las arritmias, los dolores de pecho, la fatiga y la falta de aire.
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Science Brazil  BRASIL 26/09/2014

Blowflies carry a high percentage of bacteria that cause diseases in humans

A study has found that 30% of the microorganisms found in these insects cause diseases such as bubonic plague, gastritis, ulcers and stomach cancer

Nearly 30% of the microorganisms found in blowflies are capable of causing diseases in humans says a study carried out by researchers at the University of Campinas (Unicamp), Pennsylvania State University in the United States and Nanyang Technological University in Singapore.

Un ejemplar de Sarcophagidae, eliminando líquido, para aumentar la concentración de alimento sólido ingerido. FOTO: Fir0002/Flagstaffotos.
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Science Panama  PANAMÁ 24/09/2014

The protective fungus inside

A group of 11 researchers, five of them from STRI, recently discovered how a single fungus living inside cacao plants radically alters processes from photosynthesis to the expression of disease resistance genes

The bacteria, fungi and other microorganisms living in and on human bodies — our microbiome — is getting a lot of attention as its importance to human health becomes better understood.

Un solo hongo que vive dentro de las plantas de cacao altera procesos radicalmente. FOTO: STRI.
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Science Chile  CHILE 23/09/2014

ALMA studies infant sun-like solar system to try and catch the wind

These winds could have important implications for planet formation

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have studied a special kind of young star, a T Tauri star, to understand why some have disks that glow weirdly in infrared light while others shine in a more predictable fashion. The answer, researchers speculate, may be due to differences in the wind around these stars.

Impresión artística de AS 205 N, una estrella T Tauri que es parte de un sistema multiestelar. | Crédito: AP. Marenfeld & NOAO/AURA/NSF
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Science Spain  MADRID 22/09/2014

Research on Photoacoustics to Detect Breast Cancer

It could become an alternative to mammography or sonogram

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Science Brazil  BRASIL 22/09/2014

Discovery paves the way for a new generation of chemotherapies

In an article published in the journal Chemistry & Biology, researchers describe a new mechanism that inhibits the activity of proteasomes, protein complexes that are a target for cancer therapy

A new mechanism to inhibit proteasomes, protein complexes that are a target for cancer therapy, is the topic of an article published in the journal Chemistry & Biology. The first author of the study is Brazilian Daniela Trivella, researcher at the Brazilian Biosciences National Laboratory at the Brazilian Center for Research in Energy and Materials (LNBio/CNPEM).

describen el mecanismo inédito de inhibición de la actividad del proteasoma, el complejo proteico al que se considera un blanco terapéutico contra el cáncer
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Science Chile  ATACAMA 19/09/2014

Violent origins of elliptical galaxies

New observations explain why Milky Way-like galaxies are so common in the Universe

For decades scientists have believed that galaxy mergers usually result in the formation of elliptical galaxies. Now, for the the first time, researchers using ALMA and a host of other radio telescopes have found direct evidence that merging galaxies can instead form pancake galaxies, and that this outcome is in fact quite common. This surprising result could explain why there are so many spiral galaxies like the Milky Way in the Universe.

Cada uno de los coloridos objetos de esta imagen ilustra una de las 30 fusiones de galaxias. Crédito: ALMA (ESO/NAOJ/NRAO)/SMA/CARMA/IRAM/J. Ueda et al.
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Science Panama  PANAMÁ 18/09/2014

Slow-moving shallows put the heat on Bocas Coral

Some coral species may adapt to higher temperatures. The study’s models predict that areas flushed by cooler water will have a higher chance at surviving well into the future

Snorkel-perfect coral reefs in the calm, mangrove-fringed waters of the Bocas Del Toro Archipelago are expected to be among the hardest hit by warmer temperatures that lead to coral bleaching and mortality, a new study finds. These shallows in Panama’s Caribbean are characterized by low water flow, allowing water to reach precariously high sea surface temperature (SST) when compared to areas with greater water movement.

Archipiélago de Bocas Del Toro. FOTO: STRI.
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Science Colombia  BOGOTÁ D.C. 17/09/2014

Apitherapy against cancer

The expert says that observational studies performed globally show that people that work with bee cultures have less incidence of cancer

High vitamin concentration in bee byproducts improves blood flow and the immune system in cancer patients. A research project carried out by the UNal Medicine Faculty shows that apitherapy (therapeutic use of bee byproducts) helps as supplementary, not definitive, treatment for cancer.

La apiterapia consiste en utilizar productos derivados de las abejas con fines medicinales. FOTO: UN.
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Science Guatemala  GUATEMALA 16/09/2014

Central America Protects whale sharks

The largest fishes in the world, whale sharks grow to 40 feet (12.65 m) and weigh up to 47,000 pounds (21.5 metric tons)

Representatives from Panama, Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua and the Dominican Republic signed a binding agreement protecting whale sharks in Eastern Pacific and Caribbean waters that took effect on July 1. This conservation plan was drafted based on research by Smithsonian staff scientist, Hector M. Guzman.

Tiburón ballena. FOTO: STRI.
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Science Colombia  CALDAS 15/09/2014

Genetic diversity of mandarin orange discovered

This result serves to determine if there are material duplicates in the studied bank

A UNal-Palmira and Regional Autonomous Corporation of Caldas (CORPOICA, for its Spanish acronym) study determined that there is an important genetic variability of this species, enabling its maintenance and preservation. Despite being a very much consumed fruit around the world the precise genome contribution of its ancestral species is unknown. This has turned it into a research target for different research groups around the world which hope to molecularly classify citric fruits.

Mandarina Okitsu (FOTO: UNL)
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Science Chile  ATACAMA 12/09/2014

ALMA achieves new high frequency observing capabilities: shows planet uranus in new light

This achievement opens an entirely new window on the Universe for ALMA and goes beyond its existing capabilities with the Band 9 receivers

The Atacama Large Millimeter/submillimeter Array (ALMA) has reached a major milestone by extending its vision fully into the realm of the submillimeter, the wavelengths of cosmic light that hold intriguing information about the cold, dark, and distant Universe.

Imagen de Urano obtenida con ALMA en alta frecuencia | ALMA (ESO/NAOJ/NRAO)
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Science Brazil  BRASIL 11/09/2014

Amazônia has an "underground ocean"

Sedimentary basins of the Acre, Solimões, Amazon and Marajó rivers have water reserves estimated at over 160 trillion cubic meters

Amazônia has an underground water reservoir whose volume is projected to be more than 160 trillion cubic meters, according to estimates by Francisco de Assis Matos de Abreu, professor at the Federal University of Pará (UFPA), presented during the 66th Annual Meeting of the Brazilian Society for the Advancement of Science (SBPC) held through July 27, 2014, on the campus of the Federal University of Acre (UFAC) in Rio Branco.

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Science Spain  MADRID 09/09/2014

A system that facilitates malware identification in smartphones

This system allows a large number of apps to be analyzed in order to determine the malware’s origins and family

Researchers at Universidad Carlos III de Madrid (UC3M) have developed a tool to help security analysts protect markets and users from malware. This system allows a large number of apps to be analyzed in order to determine the malware’s origins and family.

Seguridad en el móvil. Imagen: UC3M.
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Science Spain  MADRID 05/09/2014

The Future of Ultrascale Computing Under Study

Ultrascale systems combine the advantages of distributed and parallel computing systems

Some two hundred scientists from more than 40 countries are researching what the next generation of ultrascale computing systems will be like. The study is being carried out under the auspices of NESUS, one of the largest European research networks of this type coordinated by Universidad Carlos III de Madrid (UC3M).

Computación. Imagen: UC3M.
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