Ciencia Noticias

At the beginning of the 20th century, the invention of X-ray imaging provided a leap of knowledge in medical science. Since then, we can see how our body's bones work, bringing numerous new treatments to light.

Microelectromechanical systems (MEMS) are tiny devices that integrate various components, such as miniature sensors, electronics and actuators, onto a single chip. These small devices have proved highly promising for precisely detecting biological signals, acceleration, force and other measurements.

El 13 de septiembre de 1944, investigadores sometieron un Bell P-39L Airacobra a temperaturas gélidas y a un rocío de agua helada en el nuevo Túnel de Investigación de Hielo (IRT) del Comité Asesor Nacional de Aeronáutica (NACA) para estudiar la acumulación de hielo en vuelo.Desde aquel primer experimento en el Laboratorio de Investigación de Motores de Aeronaves (ahora Centro de Investigación Glenn de la NASA) en Cleveland, la instalación ha funcionado de forma regular durante 80 años y sigue siendo el túnel de hielo más antiguo y uno de los más grandes del mundo.

Una nueva investigación presenta un método para mejorar la precisión y la velocidad del reconocimiento dinámico de emociones utilizando una red neuronal convolucional (CNN) para analizar rostros.El trabajo realizado por Lanbo Xu de la Universidad Northeastern en Shenyang, China, podría tener aplicaciones para la salud mental, la interacción persona-computadora, la seguridad y otras áreas.

Across all species, critical skills are passed on from parents to offspring through communication. Researchers at the University Hospital Bonn (UKB) and the Researchers at the University of Bonn showed that effective communication relies on how both the sender and receiver represent information. Their study reveals how this process underlies training efficacy and task performance. Their results have been published in the journal Nature Communications.

A new protective shirt geared to the needs of wildland firefighters has been developed by University of Alberta researchers. The prototype garment offers more protection than the current version commonly worn by workers who fight wildfires, says Elena Kosareva, who designed the shirt to earn a Ph.D. in textile and apparel science from the Faculty of Agricultural, Life & Environmental Sciences.

Researchers at the Department of Instrumentation and Applied Physics (IAP), Indian Institute of Science (IISc) and collaborators have designed a new supercapacitor that can be charged by light shining on it. Such supercapacitors can be used in various devices, including streetlights and self-powered electronic devices such as sensors.

El profesor Kaichen Xu y sus compañeros de trabajo de la Universidad de Zhejiang han desarrollado un método novedoso para integrar sistemas de sensores directamente en termoplásticos de ingeniería utilizando tecnología láser.Su avance ofrece el potencial de mejorar la seguridad y prolongar la vida útil de equipos críticos en diversas industrias, incluidas la aeroespacial, la automotriz, la atención médica y el transporte.

Deep learning (DL) has significantly transformed the field of computational imaging, offering powerful solutions to enhance performance and address a variety of challenges. Traditional methods often rely on discrete pixel representations, which limit resolution and fail to capture the continuous and multiscale nature of physical objects. Recent research from Boston University (BU) presents a novel approach to overcome these limitations.

Li-ion batteries can present major hazards, with the notion of safety based on narrow criteria. A meta-analysis of thermal runaway gas emissions by Sheffield researchers, published in the Journal of Energy Storage improves understanding and highlights the need for a broader analysis of risks.

Una nueva nariz electrónica ultrapequeña (e-nose) que funciona con potencia ultrabaja abre posibilidades para aplicaciones en diversos campos, como el monitoreo de la calidad del aire, el diagnóstico de salud, la seguridad alimentaria y la protección del medio ambiente.

A wearable 'smart' choker for speech recognition has the potential to redefine the field of silent speech interface (SSI), say researchers—thanks to embedded ultrasensitive textile strain sensor technology.

El sector del transporte sigue estando entre las principales fuentes de contaminación del aire y cambio climático en la Tierra, y representa aproximadamente el 59% del consumo de petróleo y el 22% de las emisiones de CO2.Por lo tanto, identificar estrategias efectivas para limitar el combustible consumido por los vehículos podría contribuir a reducir la contaminación y al mismo tiempo abordar la escasez de energía global.

Honesty is the best policy… most of the time. Social norms help humans understand when we need to tell the truth and when we shouldn't, to spare someone's feelings or avoid harm. But how do these norms apply to robots, which are increasingly working with humans? To understand whether humans can accept robots telling lies, scientists asked almost 500 participants to rate and justify different types of robot deception.

Surging demand for the data and processing power of artificial intelligence is putting a hidden strain on U.S. electrical grids.

Las mariposas pueden ver más del mundo que los humanos, incluidos más colores y la dirección de oscilación del campo, o polarización, de la luz.Esta habilidad especial les permite navegar con precisión, buscar comida y comunicarse entre sí.Otras especies, como el camarón mantis, pueden sentir un espectro de luz aún más amplio, así como la polarización circular o estados de giro de las ondas de luz.Utilizan esta capacidad para señalar un "código de amor", que les ayuda a encontrar y ser descubiertos por sus parejas.

In simulated life-or-death decisions, about two-thirds of people in a UC Merced study allowed a robot to change their minds when it disagreed with them—an alarming display of excessive trust in artificial intelligence, researchers said.

In the rapidly evolving world of 3D printing, the pursuit of faster, more efficient and versatile production methods is never-ending. Traditional 3D printing techniques, while groundbreaking, are often time-consuming and limited in the kinds of materials they can use as feedstock.

One of the most critical safety concerns for electric vehicles is keeping their batteries cool, as temperature spikes can lead to dangerous consequences.

Windows, the vital conduits between indoor spaces and the external environment, also serve as primary entry points for harmful light waves and electromagnetic (EM) waves. However, managing light transmission and scattering typically requires different material systems and devices.