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Science stuff
Por qué el 90% de los adolescentes comete actos ilegales
on
Science stuff
Feb. 27, 2018, 8:48 p.m.
Una revisión de estudios sobre la delincuencia de los adolescentes señala la importancia de no poner penas excesivas para un comportamiento antisocial que es temporal, especialmente entre los varones
Por qué el 90% de los adolescentes comete actos ilegales
Science stuff
Scientists identify specialized brain areas for feeding and egg-laying in hawkmoths
on
Science stuff
Feb. 27, 2018, 8:09 p.m.
The search for food is linked to other areas in the olfactory center of female tobacco hawkmoths (Manduca sexta) than the search for plants to best lay eggs, researchers have found. The study confirmed that activity in specific areas in the antennal lobe of the insects correlates with feeding behavior, whereas activity in other areas is related to egg-laying.
https://www.sciencedaily.com/releases/2018/02/180227125726.htm
Science stuff
Crecer cerca de espacios verdes mejora el desarrollo cerebral de los niños
on
Science stuff
Feb. 27, 2018, 6:21 p.m.
Un estudio de ISGlobal demuestra que la exposición a zonas verdes durante largo tiempo se asocia con cambios positivos en la estructura del cerebro
Crecer cerca de espacios verdes mejora el desarrollo cerebral de los niños
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Science stuff
Stars around the Milky Way: Cosmic space invaders or victims of galactic eviction?
on
Science stuff
Feb. 27, 2018, 10:39 a.m.
An international team of astronomers has made a surprising discovery about the birthplace of groups of stars located in the halo of our Milky Way galaxy. The astronomers now have compelling evidence showing that some of these halo structures actually originate from the Milky Way's disk itself, but were kicked out; this phenomenon is called galactic eviction.
https://www.sciencedaily.com/releases/2018/02/180226181611.htm
Science stuff
Tracking data reveal the secret lives of marine animals
on
Science stuff
Feb. 26, 2018, 11:33 p.m.
Tracking devices deployed on wild animals have revealed unexpected behaviors and migratory patterns in marine animals ranging from sharks and seals to turtles and albatrosses. Researchers from around the world have now pooled their data on the movements of a wide array of marine animals, enabling them to look for common features in how animals move throughout the world's oceans.
https://www.sciencedaily.com/releases/2018/02/180226152712.htm
Science stuff
Complete genomes of extinct and living elephants sequenced
on
Science stuff
Feb. 26, 2018, 10:39 p.m.
Researchers have produced one of the most comprehensive evolutionary pictures to date by looking at one of the world's most iconic animal families - namely elephants, and their relatives mammoths and mastodons-spanning millions of years.
https://www.sciencedaily.com/releases/2018/02/180226152725.htm
Science stuff
Ante la moda de comer natural
on
Science stuff
Feb. 26, 2018, 7:52 p.m.
Hay avances que han salvado millones de vidas y ahora son cuestionados por los devotos de lo 'sostenible'
Tribuna | Ante la moda de comer natural
Science stuff
Behavior in high school predicts income and occupational success later in life
on
Science stuff
Feb. 26, 2018, 5:25 p.m.
Being a responsible student, maintaining an interest in school and having good reading and writing skills will not only help a teenager get good grades in high school but could also be predictors of educational and occupational success decades later, regardless of IQ, parental socioeconomic status or other personality factors, according to new research.
https://www.sciencedaily.com/releases/2018/02/180226103350.htm
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Science stuff
An Intersection of Land, Ice, Sea and Clouds
on
Science stuff
Feb. 26, 2018, 3:40 p.m.
Though sea ice has been significantly below normal extent and thickness across much of the Arctic, the ice in the Labrador Sea has been relatively close to normal.
An Intersection of Land, Ice, Sea and Clouds
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Science stuff
Prevention is better than cure: Targeted vaccination to halt epidemics
on
Science stuff
Feb. 26, 2018, 2:15 p.m.
Scientists simulated real-world social networks to assess the best strategies for halting epidemics.
https://www.sciencedaily.com/releases/2018/02/180223132004.htm
Science stuff
La constante de Conway
on
Science stuff
Feb. 26, 2018, 2:15 p.m.
¿Cuál es la siguiente fila de esta peculiar construcción numérica?
La constante de Conway
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Science stuff
De la prueba del crimen a los orígenes de los caribeños
on
Science stuff
Feb. 26, 2018, 2:09 p.m.
El genetista Antonio Salas halla claves para resolver casos policiales y rastrea la historia de la humanidad en genomas ancestrales
De la prueba del crimen a los orígenes de los caribeños
Science stuff
Los antidepresivos funcionan, según el mayor estudio sobre su eficacia
on
Science stuff
Feb. 26, 2018, 12:53 p.m.
Un análisis de 522 ensayos confirma la utilidad de los 21 fármacos más comunes para tratar la depresión
Los antidepresivos funcionan, según el mayor estudio sobre su eficacia
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Science stuff
Why are there so many types of lizards?
on
Science stuff
Feb. 26, 2018, 4:17 a.m.
Researchers have sequenced the complete genetic code -- the genome -- of several vertebrate species from Panama. They found that changes in genes involved in the interbrain (the site of the pineal gland and other endocrine glands), for color vision, hormones and the colorful dewlap that males bob to attract females, may contribute to the formation of boundaries between species. Genes regulating limb development also evolved especially quickly.
https://www.sciencedaily.com/releases/2018/02/180223151844.htm
Science stuff
More than half of U. S. gun owners do not safely store their guns
on
Science stuff
Feb. 26, 2018, 1:13 a.m.
More than half of gun owners do not safely store all their guns, according to a new survey of 1,444 U.S. gun owners.
https://www.sciencedaily.com/releases/2018/02/180225184123.htm
Science stuff
El juego de la vida
on
Science stuff
Feb. 26, 2018, 12:35 a.m.
Una cuadrícula con algunas casillas coloreadas y unas reglas sencillas ejemplifican la autoorganización de la vida
El juego de la vida
Science stuff
Crop-saving soil tests now at farmers' fingertips
on
Science stuff
Feb. 25, 2018, 8:23 p.m.
Soil pathogen testing -- critical to farming, but painstakingly slow and expensive -- will soon be done accurately, quickly, inexpensively and onsite, thanks to new research.
https://www.sciencedaily.com/releases/2018/02/180223151846.htm
Science stuff
Rompecabezas cúbicos
on
Science stuff
Feb. 25, 2018, 5:43 p.m.
Además del famoso cubo de Rubik, hay otros cubos de piezas móviles que son un desafío para nuestra capacidad combinatoria
Rompecabezas cúbicos
Science stuff
Las cartas boca abajo
on
Science stuff
Feb. 25, 2018, 5:13 p.m.
No tiene que ver con la famosa obra teatral de Buero Vallejo, sino con un elegante acertijo popularizado por el cine
Las cartas boca abajo
Science stuff
Financial structure of early childhood education requires overhaul to make it accessible and afforda
on
Science stuff
Feb. 25, 2018, 3:22 p.m.
High-quality early care and education (ECE) is critical to positive child development and has the potential to generate economic returns, but the current financing structure of ECE leaves many children without access to high-quality services and does little to strengthen the ECE workforce, says a new report from the National Academies of Sciences, Engineering, and Medicine.
https://www.sciencedaily.com/releases/2018/02/180223164031.htm
Science stuff
“El machismo tiene bases biológicas”
on
Science stuff
Feb. 25, 2018, 11:23 a.m.
La primatóloga alemana busca en los monos claves de la evolución social humana
“El machismo tiene bases biológicas”
Science stuff
Link between surface-water salinity and climate change examined
on
Science stuff
Feb. 25, 2018, 9:01 a.m.
New research explores the impact of de-icing salt from roads and highways on a local watershed. The findings offer hope for the watershed's future surface-water chloride concentrations.
https://www.sciencedaily.com/releases/2018/02/180223151849.htm
Science stuff
El difícil camino de lo micro a lo macroscópico
on
Science stuff
Feb. 25, 2018, 6:56 a.m.
Desde la Antigua Grecia, la ciencia ha querido buscar y entender los últimos constituyentes de la materia
El difícil camino de lo micro a lo macroscópico
Science stuff
Ice chips only? Study questions restrictions on oral intake for women in labor
on
Science stuff
Feb. 25, 2018, 6:29 a.m.
At most US maternity units, women in labor are put on nil per os (NPO) status -- they're not allowed to eat or drink anything, except ice chips. But new nursing research questions that policy, showing no increase in risks for women who are allowed to eat and drink during labor.
https://www.sciencedaily.com/releases/2018/02/180223151852.htm
Science stuff
El arte de los otros
on
Science stuff
Feb. 25, 2018, 6:03 a.m.
Las primeras pinturas rupestres no fueron obra de nuestra especie, sino de los neandertales. Esto da mucho que pensar
Análisis | El arte de los otros
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Science stuff
Molecular Trojan horse delivers chemotherapeutic drug to cancer cells
on
Science stuff
Feb. 25, 2018, 3:15 a.m.
Researchers have discovered a way for chemotherapy drug paclitaxel to target migrating, or circulating, cancer cells, which are responsible for the development of tumor metastases. Until now, paclitaxel has only been used to target rapidly dividing cancer cells. The team was successful in getting the drug to piggyback on 123B9, an agent they devised to target an oncogene called EphA2.
https://www.sciencedaily.com/releases/2018/02/180223151855.htm
Science stuff
La ballena asesina ‘que habla’ muestra que las orcas pueden aprender a imitar el lenguaje humano
on
Science stuff
Feb. 25, 2018, 12:47 a.m.
Estos cetáceos tienen los elementos básicos necesarios para la comunicación hablada
La ballena asesina ‘que habla’ muestra que las orcas pueden aprender a imitar el lenguaje humano
Science stuff
Charging ahead to higher energy batteries
on
Science stuff
Feb. 25, 2018, 12:27 a.m.
Researchers have developed a new way to improve lithium ion battery efficiency. Through the growth of a cubic crystal layer, the scientists have created a thin and dense connecting layer between the electrodes of the battery.
https://www.sciencedaily.com/releases/2018/02/180223151901.htm
Science stuff
Metalens combined with an artificial muscle
on
Science stuff
Feb. 24, 2018, 11:28 p.m.
Inspired by the human eye, researchers have developed an adaptive metalens that is essentially a flat, electronically controlled artificial eye. The adaptive metalens simultaneously controls for three of the major contributors to blurry images: focus, astigmatism, and image shift.
https://www.sciencedaily.com/releases/2018/02/180223151903.htm
Science stuff
Young children use physics, not previous rewards, to learn about tools
on
Science stuff
Feb. 24, 2018, 1:33 p.m.
Children as young as seven apply basic laws of physics to problem-solving, rather than learning from what has previously been rewarded, suggests new research.
https://www.sciencedaily.com/releases/2018/02/180223151906.htm
Science stuff
Un matemático con cuatro cadenas perpetuas
on
Science stuff
Feb. 24, 2018, 8:20 a.m.
La serie 'Manhunt: Unabomber' de Netflix ha vuelto a poner de actualidad la enigmática figura de Ted Kaczynski, matemático y uno de los terroristas más esquivos de la historia
Un matemático con cuatro cadenas perpetuas
Science stuff
Lo que las matemáticas pueden aprender de las hormigas
on
Science stuff
Feb. 24, 2018, 4:45 a.m.
Algunos animales desarrollan tareas colectivas complejas como la construcción de hormigueros
Lo que las matemáticas pueden aprender de las hormigas
Science stuff
Short-term use of IV devices is common -- and risky -- study shows
on
Science stuff
Feb. 24, 2018, 3:37 a.m.
Many hospital patients get medicine or nutrition delivered straight into their bloodstream through a tiny device called a PICC. In just a decade, it's become the go-to device for intravenous care. But a new study finds that one in every four times a PICC gets inserted, the patient didn't need it long enough to justify the risks it can pose. And nearly one in ten of those patients suffered a complication linked to the device.
https://www.sciencedaily.com/releases/2018/02/180223164022.htm
Science stuff
Un árbol más viejo que las pirámides de Egipto
on
Science stuff
Feb. 24, 2018, 1:39 a.m.
EE UU no desvela el emplazamiento de un árbol de 5.067 años para evitar que sea talado
Un árbol más viejo que las pirámides de Egipto
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Science stuff
La caza del dragón
on
Science stuff
Feb. 23, 2018, 8:29 p.m.
Tras inspirar al director de King Kong, los dragones de Komodo siguen sorprendiéndonos con su arsenal para matar
La caza del dragón
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