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Showing posts older than #3951 · Back to latest

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Post #3950 57
People who switched to cannabis drinks cut their alcohol use nearly in half
A new University at Buffalo study suggests cannabis-infused beverages could help some people cut back on alcohol. In a survey of cannabis users, those who drank canna…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-18 12:51 GMT+8（北京时间）
ScienceDaily People who switched to cannabis drinks cut their alcohol use nearly in half A new University at Buffalo study suggests cannabis-infused beverages could help some people cut back on alcohol. In a survey of cannabis users, those who drank cannabis beverages reported cutting their weekly alcohol intake roughly in half and binge drinking…
Post #3949 50
全球变暖加速，但自然界却在减速
一项全球性研究显示，自20世纪70年代以来，物种替换的速度已减慢约三分之一。这种现象似乎是由生态系统内部动态而非气候变化驱动。这种减速可能意味着生态系统正在失去维持其运作所需的多样性。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-18 13:22 GMT+8（北京时间）
#全球变暖 #物种替换 #生态系统 #多样性
ScienceDaily Climate change is accelerating but nature is slowing down As the planet warms, many expected ecosystems to change faster and faster. Instead, a massive global study shows that species turnover has slowed by about one-third since the 1970s. Nature’s constant reshuffling appears to be driven more by internal ecological…
Post #3948 94
中国发现1250万年前的恐龙，身上有空心刺
科学家在中国发现了一具1250万年前的食草恐龙化石，化石保存极为完好，甚至可见到细胞结构。更令人惊讶的是，这种恐龙身上长有空心刺，之前从未在恐龙身上发现过类似结构。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-02-18 14:10 GMT+8（北京时间）
#恐龙 #化石 #中国 #科学发现
ScienceDaily 125 million-year-old dinosaur with never before seen hollow spikes discovered in China A 125-million-year-old dinosaur just rewrote what we thought we knew about prehistoric life. Scientists in China have uncovered an exceptionally preserved juvenile iguanodontian with fossilized skin so detailed that individual cells are still visible. Even…
Post #3947 44
母亲和孩子在一起玩耍时，脑波会同步——甚至是在学到一种新语言时
研究发现，当母亲和孩子在一起玩耍时，母亲和孩子的大脑会同步，这种现象即使是在学到一种新语言时也会发生。这种同步现象被称为脑内同步，是社会互动中大脑网络同时活动的现象，例如谈话、学习、唱歌或合作工作。
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-18 13:00 GMT+8（北京时间）
#脑内同步 #母亲与孩子 #语言学习
Medicalxpress Brainwaves of mothers and children synchronize when playing together—even in an acquired language Interbrain synchrony is the simultaneous activity of neural networks across the brains of people who are socially interacting—for example, talking, learning, singing, or working together. Having brains ...
Post #3946 40
一种被认为是休眠的脑蛋白出人意料地成为一个强大的开关
约翰斯霍普金斯大学的科学家揭示了一种新颖的方法来影响脑活动，通过靶向与焦虑、精神分裂症和运动障碍有关的长期神秘的蛋白质类别。这些被称为GluDs的蛋白质一度被认为是主要不活跃的，但它们实际上在脑细胞之间的通信和形成联系中起着活…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-19 21:53 GMT+8（北京时间）
#GluDs #脑蛋白 #脑细胞 #脑活动
ScienceDaily A “dormant” brain protein turns out to be a powerful switch Scientists at Johns Hopkins have uncovered a surprising new way to influence brain activity by targeting a long-mysterious class of proteins linked to anxiety, schizophrenia, and movement disorders. Once thought to be mostly inactive, these proteins—called…
Post #3945 341
‘code brown’后，游泳池何时恢复安全？水质专家解释
当听到“code brown”这个词时，游泳池救生员会感到头疼。热天里，游泳者也会感到头疼，因为他们被告知立即离开水面，因为池水中有粪便漂浮。
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-18 10:50 GMT+8（北京时间）
#codebrown #水质 #游泳池
Medicalxpress After 'code brown,' how long before the pool is safe again? Water quality experts explain There's little worse as a pool lifeguard than hearing the words "code brown" come through your radio. For swimmers on a hot day, there's also little worse than being told to immediately get out of the ...
Post #3944 44
婴儿食品全美召回，因霉菌毒素问题
美国联邦官员表示，多个州的婴儿食品因检测出高于预期的霉菌毒素含量而被召回。
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-18 10:00 GMT+8（北京时间）
#婴儿食品 #霉菌毒素 #召回
Medicalxpress Baby food recalled nationwide over mold toxin concern A baby food product sold across most of the United States is being pulled from store shelves after tests found higher-than-expected levels of a toxin linked to mold, federal officials said.
Post #3943 77
青蛙肉贸易助长致命真菌全球传播
一项研究表明，一种全球性消灭了数百种两栖类物种的致命真菌可能起源于巴西。基因证据和贸易数据表明该真菌通过国际青蛙肉市场途径在全球传播。研究结果引发了对野生动物贸易可能传播隐匿生物威胁的紧迫关注。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-19 19:40 GMT+8（北京时间）
#真菌 #两栖类 #贸易 #生物威胁
ScienceDaily How the frog meat trade helped spread a deadly fungus worldwide A deadly fungus that has wiped out hundreds of amphibian species worldwide may have started its global journey in Brazil. Genetic evidence and trade data suggest the fungus hitchhiked across the world via international frog meat markets. The findings raise…
Post #3942 35
研究表明，情绪表达在自闭症人群中有所不同
研究人员发现，自闭症人群和非自闭症人群在表达愤怒、 Happiness 和悲伤等情绪时，面部表情方式不同。自闭症参与者倾向于依赖不同的面部特征，并产生了更多的多样化表情，这可能使非自闭症观察者感到陌生。该研究表明，情绪误解是双向的，而不…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-19 18:31 GMT+8（北京时间）
#自闭症 #情绪表达 #面部表情
ScienceDaily New research shows emotional expressions work differently in autism Researchers found that autistic and non-autistic people move their faces differently when expressing emotions like anger, happiness, and sadness. Autistic participants tended to rely on different facial features and produced more varied expressions, which…
Post #3941 37
减肥药‘支持补充剂’：它们是否解决营养缺陷，还是又一时尚潮流？
GLP-1类药物最初用于治疗2型糖尿病，但现在已广泛用于减肥。
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-18 07:00 GMT+8（北京时间）
#GLP1 #减肥药 #营养缺陷
Medicalxpress Weight-loss drug 'support supplements': Do they address nutrient deficiencies, or are they just another fad? Weight-loss injections have rapidly moved from specialist clinics to social media feeds and high-street pharmacies. Known as GLP-1 medications, they were originally developed to support those with type ...
Post #3940 39
大麻被吹捧为神经痛的解药，但证据不足
一项新的大规模研究发现，基于大麻的药物并不能有效缓解神经痛，研究人员分析了超过2100名成年人的20余项临床试验，发现大麻制品在缓解神经痛方面并未超越安慰剂的作用，甚至在使用THC-CBD组合时也未能带来足够的改善，无法在日常生活中产…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-19 13:11 GMT+8（北京时间）
#大麻 #神经痛 #THCCBD
ScienceDaily Cannabis was touted for nerve pain. The evidence falls short Cannabis-based medicines have been widely promoted as a potential answer for people living with chronic nerve pain—but a major new review finds the evidence just isn’t there yet. After analyzing more than 20 clinical trials involving over 2,100 adults, researchers…
Post #3939 29
科学家发现可能逆转脑部老化的‘关键调节者’
研究人员发现了OTULIN，一个调节免疫系统的酶，是脑部tau积累的关键诱发者。当OTULIN被禁用时，tau从神经元中消失，脑细胞保持健康。这些发现挑战了人们对tau必要性的长期假设，突出了fighting Alzheimer's和脑部老化的新途径。科学家…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-16 16:53 GMT+8（北京时间）
#OTULIN #tau #脑部老化 #Alzheimers #炎症
ScienceDaily Scientists find ‘master regulator’ that could reverse brain aging Researchers have identified OTULIN, an immune-regulating enzyme, as a key trigger of tau buildup in the brain. When OTULIN was disabled, tau vanished from neurons and brain cells remained healthy. The findings challenge long-held assumptions about tau’s necessity…
Post #3938 39
泰诺的真正危险与自闭症无关
尽管社交媒体仍在散布声称阿司匹林与儿童自闭症之间的联系，但医学专家表示，这些恐惧分散了一个更严重且已被证明的危险：过量服用。泰诺和许多感冒和流感药物中都含有阿司匹林，它是美国急诊室就医、住院和急性肝衰竭的主要原因之一。
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-19 01:03 GMT+8（北京时间）
#泰诺 #阿司匹林 #自闭症 #过量服用
ScienceDaily The real danger of Tylenol has nothing to do with autism While social media continues to circulate claims linking acetaminophen to autism in children, medical experts say those fears distract from a far more serious and proven danger: overdose. Acetaminophen, found in Tylenol and many cold and flu remedies, is…
Post #3937 40
科学家将病毒送入太空，结果意外的进化了
科学家将感染细菌的病毒送入国际空间站，结果发现在微重力环境下，病毒和细菌的进化方式与地球上有所不同。研究发现，微重力下，病毒和细菌都发生了基因变化，这些变化影响了病毒如何附着在细菌上以及细菌如何防御病毒。这些发现可能有助于改…
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-18 22:54 GMT+8（北京时间）
#太空 #微重力 #病毒 #细菌 #进化
ScienceDaily Scientists sent viruses to space and they evolved in surprising ways When scientists sent bacteria-infecting viruses to the International Space Station, the microbes did not behave the same way they do on Earth. In microgravity, infections still occurred, but both viruses and bacteria evolved differently over time. Genetic…
Post #3936 48
DMT理论在大脑中的作用遭遇挑战：实验发现大鼠中未检测到DMT在血清素神经元中存在
长期以来，人们一直在探讨大脑是否会自然产生致幻性物质DMT。有人认为DMT可能作为一种信号物质存在于大脑中，可能与血清素一起作为共传递物质。然而，最新的研究发现，在大鼠实验中，未在血清素神经元中检测到DMT的存在，这一发现对DMT理论提…
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-18 04:00 GMT+8（北京时间）
#DMT #血清素神经元 #大鼠实验
Medicalxpress Key brain DMT theory takes a hit: Rat study finds no detectable DMT in serotonin neurons For decades, the idea that the human brain might naturally produce the psychedelic compound DMT has attracted considerable attention. It has been speculated that DMT could function as a natural signaling ...
Post #3935 69
空气污染可能直接导致阿尔茨海默病
研究发现，暴露于空气污染的人群患有阿尔茨海默病的风险更高，埃默里大学的研究人员发表于《PLOS医学》杂志。
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-18 03:00 GMT+8（北京时间）
#空气污染 #阿尔茨海默病
Medicalxpress Air pollution may directly contribute to Alzheimer's disease People with greater exposure to air pollution face a higher risk of developing Alzheimer's disease, according to a new study by Yanling Deng of Emory University and colleagues, published February 17 in ...
Post #3934 63
A once-in-a-generation discovery is transforming dairy farming
A Michigan dairy farm took a gamble on a new kind of soybean—and it paid off fast. After feeding high-oleic soybeans to their cows, milk quality improved within days …
来源: ScienceDaily ｜ 阅读全文
发布时间: 2026-01-18 21:53 GMT+8（北京时间）
ScienceDaily A once-in-a-generation discovery is transforming dairy farming A Michigan dairy farm took a gamble on a new kind of soybean—and it paid off fast. After feeding high-oleic soybeans to their cows, milk quality improved within days and feed costs dropped dramatically. Backed by years of MSU research, the crop is helping…
Post #3933 56
全球卫生组织成员国就病原体访问和利益共享协议达成共识
世界卫生组织（WHO）成员国在全球卫生大会（WHA）成立的病原体访问和利益共享（PABS）协议草案的谈判中取得了进展。
来源: WHO ｜ 阅读全文
发布时间: 2026-02-17 17:24 GMT+8（北京时间）
#WHO #PABS #全球卫生大会 #病原体访问和利益共享
World Health Organization Global commitment on display as countries negotiate key annex to the Pandemic Agreement Member States of the World Health Organization (WHO) concluded a weeklong round of negotiations on draft annex for Pathogen Access and Benefit Sharing (PABS) – a key component of the WHO Pandemic Agreement.
Post #3932 38
阿尔茨海默病治疗的副作用：大脑肿胀可能是积极的信号
研究发现，阿尔茨海默病治疗引起的大脑肿胀可能是积极的信号，表明治疗反应更强。研究人员发现，肿胀的脑区中，β-淀粉样蛋白（一种在脑中形成斑块的蛋白质）被清除的速度更快。
来源: Medical Xpress ｜ 阅读全文
发布时间: 2026-02-18 02:06 GMT+8（北京时间）
#阿尔茨海默病 #大脑肿胀 #治疗反应
Medicalxpress The good side of a side effect: Brain swelling during Alzheimer's treatment may signal strong response A new Alzheimer's treatment side effect that results in brain swelling may have an upside, according to a new study from Houston Methodist Research Institute. The research finds that beta amyloid—a ...
Post #3931 34
利比亚机场疟疾聚集病例，2024年
利比亚的研究人员发现了一个机场疟疾聚集病例，尽管该国已被认证为疟疾自由国家。研究人员使用了地理信息系统和时空分析来确定病例的空间分布和时间模式。研究结果表明，机场附近的疟疾病例集中在特定的区域，可能与人类活动和环境因素有关。…
来源: CDC ｜ 阅读全文
发布时间: 2026-02-17 13:00 GMT+8（北京时间）
#疟疾 #机场 #地理信息系统 #时空分析
Emerging Infectious Diseases journal Airport Malaria Cluster in Certified Malaria-Free Country, Libya, 2024
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