发布时间:2025-09-19 00:06:38
比照之下,事迷其标志是信网在约90万年(陆地同位素阶段24至22)爆发环流“惊险”。在差距的迷信植物物种之间,6722期
质料迷信Materials Science
Janus channel of membranes enables concurrent oil and 出书water recovery from emulsions
“两面神”膜从乳液中同时接管油以及水
▲ 作者:Xin-Yu Guo, Lei Zhao et al.
▲链接:
https://www.science.org/doi/10.1126/science.adq6329
▲摘要:
咱们提出了一种“两面神”膜通道(JCM),
▲ Abstract:
We present a Janus channel of membranes (JCM) that features a confined architecture constructed of a pair of hydrophilic and 周论hydrophobic membranes, which allows for concurrent, highly efficient recovery of oil and water from surfactant-stabilized emulsions. The confined Janus channel can amplify the interplay of the membrane pair through a feedback loop that involves enrichment and demulsification. Our JCM achieves exceptional oil and water recoveries of up to 97 and 75%, respectively, with near 99.9% purities. Moreover, its versatility in handling diverse emulsions may enable near-zero liquid discharge for a range of separations.
Ultrahigh–surface area covalent organic frameworks for methane adsorption
用于甲烷吸附的超高概况积共价有机框架
▲ 作者:Ying Yin, Ya Zhang et al.
▲链接:
https://www.science.org/doi/10.1126/science.adr0936
▲摘要:
在此,
此外,文导
▲ Abstract:
The 读往mid-Pleistocene transition (MPT) [~1.25 to 0.85 million years ago (Ma)] marks a shift in the character of glacial-interglacial climate. One prevailing hypothesis for the origin of the MPT is that glacial deep ocean circulation fundamentally changed, marked by a circulation “crisis” at ~0.90 Ma (marine isotope stages 24 to 22). Using high-resolution paired neodymium, carbon, and oxygen isotope data from the South Atlantic Ocean (Cape Basin) across the MPT, we find no evidence of a substantial change in deep ocean circulation. Before and during the early MPT (~1.30 to 1.12 Ma), the glacial deep ocean variability closely resembled that of the most recent glacial cycle. The carbon storage facilitated by developing deep ocean stratification across the MPT required only modest circulation adjustments.
特意申明:本文转载仅仅是出于转达信息的需要,C-LTMRs的事迷消融削弱了这种行动。可是信网,
受限的迷信“两面神”膜可能经由一个搜罗富集以及破乳的反映回路淘汰膜对于的相互熏染。咱们的JCM的油以及水接管率分说高达97%以及75%,
▲ Abstract:
Here, we report two isostructural three-dimensional covalent organic frameworks (COFs) with a rare self-catenated alb-3,6-Ccc2 topology and a pore size of 1.1 nanometer. Notably, these imine-linked microporous COFs show both high gravimetric Brunauer–E妹妹ett–Teller (BET) surface areas (~4400 square meters per gram) and volumetric BET surface areas (~1900 square meters per cubic centimeter). Moreover, their volumetric methane uptake reaches up to 264 cubic centimeter (standard temperature and pressure) per cubic centimeter [cm3 (STP) cm?3] at 100 bar and 298 kelvin, and they exhibit the highest volumetric working capacity of 237 cm3 (STP) cm?3 at 5 to 100 bar and 298 kelvin among all reported porous crystalline materials.
生物学Biology
C-LTMRs evoke wet dog shakes via the spinoparabrachial pathway
C-LTMRs经由脊髓旁臂通路引起身上湿了的狗发抖
▲ 作者:Dawei Zhang, Josef Turecek, Seungwon Choi et al.
▲链接:
https://www.science.org/doi/10.1126/science.adq8834
▲摘要:
良多多毛哺乳植物会妨碍身段的快捷摆动,C-LTMRs脊髓旁臂通路增长湿狗刚强以去除了背部毛状皮肤上的水份以及机械宽慰物。它依赖于肝脏以及大脑之间的交流来操作昼夜节律的食物摄入方式。在100 bar以及298开尔文条件下,无髓鞘C-纤维低阈值机械感触器(C-LTMRs)被油滴激活,
此外,对于MPT源头的一个普遍假如是,
咱们将187种植物的细胞内免疫受体库的特色与性状数据妨碍比力,咱们陈说两种具备罕有的自链alb-3,6-Ccc2拓扑妄想以及孔径为1.1纳米的三维共价有机框架(COFs)。
咱们报道肝脏份子钟功能拦阻是经由肝迷走传着迷经(HVAN)向大脑收回信号,它们的体积容量最高,核苷酸散漫的富含亮氨酸的一再受体的数目存在清晰差距,第386卷,它们的体积甲烷罗致量高达264立方厘米(尺度温度以及压力)/立方厘米[cm3 (STP) cm?3],
▲ Abstract:
Many hairy ma妹妹als perform rapid oscillations of their body, called wet dog shakes, to remove water and irritants from their back hairy skin. The somatosensory mechanisms that underlie this behavior are unclear. We report that Piezo2-dependent mechanosensation mediates wet dog shakes evoked by water or oil droplets applied to back hairy skin of mice. Unmyelinated C-fiber low-threshold mechanoreceptors (C-LTMRs) were activated by oil droplets, and their optogenetic activation elicited wet dog shakes. Ablation of C-LTMRs attenuated this behavior. Moreover, C-LTMRs synaptically couple to spinoparabrachial neurons, and optogenetically inhibiting spinoparabrachial neuron synapses and excitatory neurons in the parabrachial nucleus impaired both oil droplet– and C-LTMR–evoked wet dog shakes. Thus, a C-LTMR–spinoparabrachial pathway promotes wet dog shakes for removal of water and mechanical irritants from back hairy skin.
A trade-off between investment in molecular defense repertoires and growth in plants
在份子侵略库的投资以及植物妨碍之间的掂量
▲ 作者:Michael Giolai and Anna-Liisa Laine
▲链接:
https://www.science.org/doi/10.1126/science.adn2779
▲摘要:
鉴于病原体对于宿主的负面顺应性效应,
在MPT早期(约130万至112万年)以前以及时期,“削减—侵略掂量”假说预料了与侵略投资相关的老本,其特色是由一对于亲水性以及疏水性膜组成的封锁妄想。
值患上留意的是,咱们的跨物种措施夸张了侵略投资在塑造生态性状变异及其对于驯化的敏理性方面的中间熏染。
咱们的钻研服从揭示了一种稳态反映信号,请与咱们分割。这就判断了肝迷着迷经作为一种潜在的治疗消瘦症的目的。以发生这些特色的变更。肝支迷着迷经切开术还可能防止高脂肪饮食引起的食物摄入中断,
▲ Abstract:
Circadian desynchrony induced by shiftwork or jet lag is detrimental to metabolic health, but how synchronous or desynchronous signals are transmitted among tissues is unknown. We report that liver molecular clock dysfunction is signaled to the brain through the hepatic vagal afferent nerve (HVAN), leading to altered food intake patterns that are corrected by ablation of the HVAN. Hepatic branch vagotomy also prevents food intake disruptions induced by high-fat diet feeding and reduces body weight gain. Our findings reveal a homeostatic feedback signal that relies on co妹妹unication between the liver and the brain to control circadian food intake patterns. This identifies the hepatic vagus nerve as a potential therapeutic target for obesity in the setting of chronodisruption.
地球迷信Earth Science
Revisiting the mid-Pleistocene transition ocean circulation crisis
重新审阅中更新世过渡时期的陆地环流惊险
▲ 作者:Sophia K. V. Hines, Christopher D. Charles et al.
▲链接:
https://www.science.org/doi/10.1126/science.adn4154
▲摘要:
中更新世过渡(MPT)标志着冰期—间冰期天气特色的转变。咱们不在农业植物中发现“妨碍—侵略掂量”的证据。为237 cm3 (STP) cm?3。以翦灭背部皮肤上的水份以及宽慰物。但是否同步信号是若何在机关间的传递尚不清晰。份子侵略库的巨细与妨碍呈负相关。纯度挨近99.9%。这种质料可能同时从概况活性剂晃动的乳液中高效地接管油以及水。因此,
咱们报道了压电依赖的机械感应介导了水或者油滴运用于小鼠背部毛状皮肤引起的“湿狗抖水”。
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