Environment Panama  PANAMÁ 17/07/2014

How could climate change affect fiddler crab reproduction?

A new study by scientists at the Smithsonian Tropical Research Institute shows how two species of fiddler crab change behavior to maintain reproductive success even as temperatures fall

One reason some species of fiddler crabs are so abundant on the beaches and mudflats around Panama City is that they reproduce year-round, closely timing reproduction around the high tides that increase success of offspring survival. Many species maintain this cycle during the “cold” part of the tropical year when upwelling causes ocean surface temperature to drop, even though lower temperatures can produce timing errors that increase offspring mortality.

Cangrejo violinista. FOTO: STRI.
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Nutrition Colombia  VALLE DEL CAUCA 16/07/2014

Sacha inchi, Indian oil with medicinal value

The results showed that the oil contains high polyunsaturated fatty acid content

The native sacha inchi seed is also known as the “Inca-peanut” and has high fatty polyunsaturated acid and antioxidant content, with promising industrial, cosmetic and medicinal potential. This was determined by UNal-Palmira Agricultural Sciences master’s candidate Zully Adriana Hurtado, who assessed the potential of products produced using sacha inchi (Plukenetia volubilis).

La semilla sacha inchi es una oleaginosa autóctona de la Amazonia peruana. Foto: nutraperu.wordpress.com La semilla sacha inchi es una oleaginosa autóctona de la Amazonia peruana. Foto: nutraperu.wordpress.com
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Social Sciences Argentina  BUENOS AIRES 15/07/2014

“We have to promote the development of a regional conscience”

Sara Rietti, the first nuclear chemist in Argentina, talked with TSS about the need to build a Latin American scientific and technological way of thinking that answers to the region’s needs and that confronts hegemonic interests

Sara Rietti speaks about Andrés Carrasco and gets emotional. She is the first nuclear chemist in Argentina; a pioneer in a world in which podiums were (and still are) exclusively for men; a woman that resisted the police’s “bastones largos” (long batons), sent by Onganía’s military government, when they forcefully entered the building of UBA’s Facultad de Ciencias Exactas y Naturales; someone who spent that dark night in 1966 retrieveing her colleagues from the police station, together with her husband, Victor Rietti; a woman who organized their exile to other countries in the region. “I made an effort to keep the researchers in Latin America, because if they left to the huge centers, then they did not return,” recalls Rietti, who was in charge of repatriating them after the recovery of democracy, from her position as Manuel Sadosky’s chief of staff, in the Secretariat for Science and Technology.

Sara Rietti pugna por la democratización del conocimiento por sobre los intereses hegemónicos de los países que ponen las reglas del juego en la investigación. / Foto Diego Sandstede
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Culture Mexico  MÉXICO 11/07/2014

Research Makes First-Time Study of Frida Kahlo Portrait Photos

The characteristics of the nearly 800 photographs of Mexican artist Frida Kahlo taken over a period of more than 40 years are analyzed in their entirety and for the first time in a study carried out by the Universidad Carlos III de Madrid (UC3M)

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Nutrition Colombia  VALLE DEL CAUCA 11/07/2014

Guava variety with greater vitamin C content discovered

Knowing its physical, chemical and organoleptic (odor and flavor) properties is very important for good fruit productive behavior

An analysis of the physical and chemical characteristics of guava performed by UNal and the Regional Autonomous Corporation of Caldas (Corpoica for its Spanish acronym) discovered a guava variety with increased vitamin C levels. UNal-Palmira Biological Sciences master’s candidate Anyelo Andrey Gutiérrez Devia directed his research towards the quality of guava fruits of the Corpoica germoplasm bank.

Guayaba. FOTO: UN.
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Health Brazil  BRASIL 10/07/2014

Intermittent fasting deregulates the cerebral mechanism for controlling hunger

The experiment was conducted on rats by researchers at the University of São Paulo; findings were published in the journal 'Endocrinology'

Diets that alternate between cycles of prolonged fasting and regular eating are capable of preventing excessive weight gain but may also cause undesirable metabolic changes, such as deregulating the brain mechanisms that control appetite.

Una rata Wistar. Foto: UGR.
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Nutrition Colombia  ANTIOQUIA 09/07/2014

UA launches strategy to protect Uraba estuaries

Often called natural nurseries of the sea, estuaries are important natural places as they are critical for the continued survival of fish and other forms of aquatic life, birds, mammals and reptiles

Fish in their early development stages (eggs and larvae) are extremely vulnerable to predation and become food for a wide variety of aquatic species. So they are usually found in areas that provide them food and protection from predators. The Atrato River flows into the Caribbean Sea through more than 15 tributaries across the regions of Antioquia and Chocó, northwestern Colombia. “Mangroves are among the most common forms of estuarine habitats, however many different habitat types are found in and around estuaries, including arracachales and eneales, which are a type of grass commonly found in soft-sediment areas,” says UA biologist Tatiana Correa.

Estuario, peces y pescadores: equilibrio esencial en el delta del Atrato. Foto: cortesía grupos GEOC e Ictiología.
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Social Sciences Chile  ATACAMA 07/07/2014

Dynamical Star-Forming Gas Interaction Witnessed by ALMA

A research team led by Kazuki Tokuda and Toshikazu Onishi at Osaka Prefecture University conducted ALMA observations of a high-density gas cloud called MC27/L1521F in the constellation Taurus

Dynamical interaction of star-forming gas was found in a star-forming region by observations with the Atacama Large Millimeter/submillimeter Array (ALMA). This is a remarkable observation result that disproves a conventional assumption that stars are formed by slow contraction of gas clouds.

Fig. 2: Ilustración del centro del núcleo de la nube molecular MC27 basada en los resultados de observación de ALMA. Créditos: NAOJ
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Social Sciences Brazil  BRASIL 04/07/2014

Astronomers develop new model to explain the formation of Mars

International study led by Brazilian researchers analyzes the density of the cloud that formed the Solar System to explain the size of the Red Planet

Models of formation of the Solar System’s rocky planets developed in the past two decades have been successful in explaining the origin of Venus and Earth, which are similar in size, as well as that of Mercury, which has only 5% of the Earth’s mass.

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Nutrition Panama  PANAMÁ 02/07/2014

Vines choke a forest's ability to capture carbon

As abandoned agricultural land in the tropics is taken over by forests, scientists expect these new forests to mop up industrial quantities of atmospheric carbon

Tropical forests are a sometimes underappreciated asset in the battle against climate change. They cover seven percent of land surface yet hold more than 30 percent of Earth’s terrestrial carbon. As abandoned agricultural land in the tropics is taken over by forests, scientists expect these new forests to mop up industrial quantities of atmospheric carbon. New research by Smithsonian scientists shows increasingly abundant vines could hamper this potential and may even cause tropical forests to lose carbon.
 

Las lianas sofocan la capacidad del bosque para capturar carbono. FOTO: STRI.
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Health Costa Rica  COSTA RICA 30/06/2014

Psychological aspects that influence soccer players’ performance in Costa Rica

A study with elite athletes of Costa Rica, most of them soccer players, shows the importance of taking into consideration psychological and social aspects when planning the trainings

Millions of eyes are set on the soccer players who are participating in Brazil World Cup. They are very talented players with great physical qualities; however, their success depends very much on their capacity of obtaining the best performance. Definitely, Costa Rica is one of the teams which has accomplished it, because according to FIFA rank, it occupies a modest 34 position; nevertheless, it is the greatest revelation of the Cup because it occupies the first position in a group in which it had to confront Uruguay, Italy and England, three World Cup champions. Before the World Cup started, ten Costa Rican soccer players participated, with many other elite athletes, in a research about the aspects related to performance and recovery, a research which showed that not only physical questions are important but also the psychological ones.

Pruebas a un deportista en la Universidad Nacional de Costa Rica. Foto: Braulio Sánchez.
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Nutrition Panama  PANAMÁ 27/06/2014

Beetle Genus named for STRI'S Don Windsor

STRI’s Donald Windsor was recently placed one branch higher on the taxonomy tree with a genus named after him

Some people are honored with the name of a species. STRI’s Donald Windsor was recently placed one branch higher on the taxonomy tree with a genus named after him. In an exhaustive review of a tribe of cassidinae beetles, taxonomist Lukáš Sekerka reclassified three species in a new genus, Windsorispa.

Escarabajo del género Windsorispa. FOTO: STRI.
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Technology Spain  MADRID 26/06/2014

R+D to develop an intelligent new high performance electric motorcycle

The “intelligence” of Bultaco’s new electric motorcycle is being developed on the south side of Madrid

The “intelligence” of Bultaco’s new electric motorcycle is being developed on the south side of Madrid, in Science Park of the Universidad Carlos III of Madrid (UC3M), where the company has established its R + D center to work on new products and more innovative technology.

Moto inteligente. Foto: UC3M.
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Nutrition Brazil  BRASIL 26/06/2014

Research identifies new pathway in fungal metabolism

With participation from Roberto Berlinck of the University of São Paulo, the study has been published in the journal Nature

Fungal metabolism has been used by humans since pre-historic times in the making of such foods as bread, cheese, beer, and wine. However, details about the mechanisms involved in these processes have not yet been adequately studied.

Identifican en un estudio internacional una nueva vía en el metabolismo de hongos.(foto: R. Berlinck)
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Nutrition Colombia  ANTIOQUIA 25/06/2014

Described a new species of orchid in Colombia

‘Cyclopogon antioquiensis’ is the name given by scientists of the new species located in the West Andes in the Antioquia department

Scientists of the University of Gdańsk (Poland) have described a new species of orchid in Colombia that was named Cyclopogon antioquiensis. Until now, its presence has only been known in the West Andes in the Antioquia department, where it grows at about 1.350 meters of altitude above sea level.

Orquídea del género Cyclopogon. FOTO: Dalton Holland Baptista.
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Nutrition Colombia  COLOMBIA 23/06/2014

Almizclillo would be a natural antihypertensive source

According to a UNal Pharmacy Department research project

According to a UNal Pharmacy Department research project an almizclillo extract could be used as a natural source against hypertension and with cardioprotective effects. Also known as Croton schiedeanus Schltd, almizclillo has a popular tradition in Colombia, mostly in regions such as the municipality of Tocaima, in the Province of Cundinamarca, where it is commonly used for high blood pressure.

Almizclillo. FOTO: UN.
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Social Sciences Spain  BURGOS 20/06/2014

'Science' publishes study on new fossil human skulls from Spanish site

No other site in the world has yielded so many skulls of an extinct human species

The study focuses on a collection of seventeen fossil human skulls excavated from an archaeological site known as the Sima de los Huesos (Pit of the Bones) in the Atapuerca hill in northern Spain and comes 21 years after the announcement of the first three skulls from the site was published in Nature in 1993.

Cráneo número 17, la joya de la colección. Crédito: Javier Trueba.
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Health Brazil  BRASIL 20/06/2014

Study confirms how the body regulates high levels of CO2 in the blood

In experiments published in the journal Experimental Physiology, Brazilian researchers have confirmed the importance of a specific group of neurons found in the retrotrapezoid nucleus

In a recently published study in the journal Experimental Physiology, Brazilian researchers have confirmed the importance of a specific group of neurons found in a region of the brain known as the retrotrapezoid nucleus (RTN) in detecting changes in carbon dioxide (CO2) levels and in modulating the activity of the neuronal groups that control respiratory activity.

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Nutrition Spain  SALAMANCA 19/06/2014

New data about the connection between the Mediterranean and the Atlantic

The magazine ‘Science’ publishes the first results of a research at the Gulf of Cádiz in which José Abel Flores and Francisco Sierro of the University of Salamanca participated

Between November 2011 and January 2012, the most important oceanography research ship in the world, the Joides Resolution, sailed through Gulf of Cádiz and the coast situated in the South of Portugal searching for marine sediments which could help to explain the history of water exchanges between the Mediterranean Sea and the Atlantic Ocean through the Strait of Gibraltar, a phenomenon with numerous implications in the study of climate. Since then, scientists have been analyzing data and, as a result, the magazine Science publishes this expedition’s first results, in which José Abel Flores and Francisco Sierro, researchers of the University of Salamanca participated.

Francisco Sierro, a la izquierda, y José Abel Flores, bajan del Joides en Lisboa.
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Health Spain  VALLADOLID 16/06/2014

New methods to assess ocular optical quality developed

The Sensors, Instrumentation and Systems Development Center (CD6) of the Polytechnic University of Catalunya cooperates with IOBA in this line

The Visual Optics, Physiologic Optics Research Group or Visual Biophotonics of Sensors, Instrumentation and Systems Development Center (CD6) of the Polytechnic University of Catalunya has been working for more than10 years in its main research line, the ocular optical quality assessment. It is a multidisciplinary field of which researchers with different specializations take part, and it is dealt with different approaches.

El Grupo de Investigación de �ptica Visual, �ptica Fisiológica o Visual Biophotonics del Centro de Desarrollo de Sensores, Instrumentación y Sistemas (CD6) diseña nuevos métodos para medir la calidad óptica ocular. FOTO: Mikel Aldaba.

 

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