2023-12-23 15:40:46物质与能量
研究人员找到了在不熔化泡沫的情况下焊接金属泡沫的方法

Researchers at North Carolina State University have now identified a welding technique that can be used to join composite metal foam (CMF) components together without impairing the properties that make CMF desirable. CMFs hold promise for a wide array of

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2023-12-23 15:40:44物质与能量
回收剩余纸板制成新型泡沫包装

With the holiday season in full swing, gifts of all shapes and sizes are being shipped around the world. But all that packaging generates lots of waste, including cardboard boxes and plastic-based foam cushioning, such as Styrofoam™. Rather than dis

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2023-12-23 15:40:41物质与能量
下一代蓝光可能会促进或阻碍睡眠

Blue light from LED lamps and consumer electronics can mess with your sleep because it disrupts production of the natural sleep hormone melatonin. Tinted glasses or displays in night mode can mask, but don't remove, a portion of the disruptive wavelength

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2023-12-23 15:40:38物质与能量
一对很有希望的搭档:科学家为量子科学展示了新的材料组合

Quantum information scientists are always on the hunt for winning combinations of materials, materials that can be manipulated at the molecular level to reliably store and transmit information.

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2023-12-23 15:40:35物质与能量
无人机捕捉到了水如何随着时间的推移塑造山脉的新线索

Drones flying along miles of rivers in the steep, mountainous terrain of central Taiwan and mapping the rock properties have revealed new clues about how water helps shape mountains over geological time, according to a team led by Penn State scientists.

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2023-12-16 15:17:44心理学
发现大脑中强烈不适感的位置

Researchers have identified a new neural circuit in the brain which produces a strong sense of discomfort when activated. The discovery also allows them to show for the first time that the subthalamic nucleus, a structure in the brain that controls volunt

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2023-12-16 15:17:20心理学
脑成像识别精神疾病的生物标志物

Research and treatment of psychiatric disorders are stymied by a lack of biomarkers -- objective biological or physiological markers that can help diagnose, track, predict, and treat diseases. In a new study, researchers use a very large dataset to identi

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2023-12-16 15:17:06心理学
当我们看到别人做什么时,我们的大脑看到的不是我们所看到的,而是我们的期望

When we engage in social interactions, like shaking hands or having a conversation, our observation of other people's actions is crucial. But what exactly happens in our brain during this process: how do the different brain regions talk to each other? Re

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2023-12-16 15:17:02心理学
聚类方法能更好地描述颅脑损伤患者的病理过程

Monitoring brain injury biomarkers and glucose variation in patients who have suffered an acute cranial injury during the entire first week of hospitalisation can provide a more accurate picture of the pathological process. This is according to a

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2023-12-16 15:16:56心理学
拔掉脑损伤的插头:控制流体流动可以挽救生命,改善脑外伤后的恢复

Cerebral edema, the dangerous brain swelling that occurs after traumatic brain injury (TBI), can increase risk of death tenfold and significantly worsen prospects for recovery in brain function. In extreme cases, surgeons will remove a portion of the skul

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2023-12-16 15:16:46心理学
怀孕期间母亲的高压力与儿童的行为问题有关

Children whose mothers are highly stressed, anxious or depressed during pregnancy may be at higher risk for mental health and behavior issues during their childhood and teen years, according to research published by the American Psychological Association.

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2023-12-16 15:16:42心理学
一种小分子阻断厌恶记忆的形成,为抑郁症提供潜在的治疗靶点

Depression is one of the most common mental illnesses in the world, but current anti-depressants have yet to meet the needs of many patients. Neuroscientists from City University of Hong Kong (CityU) recently discovered a small molecule that can effective

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