"The brain oxygenation dynamics reveals reduced power and coordination of oscillations, especially in frequency ranges that are associated with vasomotion. This could lead to reduced oxygen delivery to the brain, which could affect ATP production, and potentially reduce amyloid-beta clearance. These changes in neurovascular dynamics have potential for early diagnosis, as a marker of disease progression, and for evaluating the effect of interventions."
https://academic.oup.com/braincomms/article/7/1/fcaf007/7994547
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"Here, we show that chirality of either handedness can be induced in the nonchiral piezoelectric material boron phosphate..by irradiation with terahertz pulses. Resonant excitation of either one of two orthogonal, degenerate vibrational modes determines the sign of the induced chiral order parameter... Our findings offer new prospects for the control of out-of-equilibrium quantum phenomena in complex materials."
https://www.science.org/doi/10.1126/science.adr4713
[#]chirality #terahertz #materials
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"In this work, we explore the impact of chirality on spin angular momentum in hybrid metal/chiral molecule thin-film heterostructures. For this, we inject a pure spin current via spin pumping and investigate the spin-to-charge conversion at the hybrid chiral interface. Notably, we observe a chiral-induced unidirectionality in the conversion."
https://www.science.org/doi/10.1126/sciadv.ado4285
[#]spin #chirality #polarization
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"With further optimizations... the cooling power improved ∼70%, and it is possible to achieve a COPe of 14.3. Moreover, the practical cooling effect was demonstrated with a considerable temperature drop of electrolyte of ∼1.42 K with only 0.11 W cm/2 input. Prospectively, our electrolyte design principle based on solvation entropy engineering could be effective for not only electrochemical refrigeration but also broader thermogalvanic energy conversion technologies."
https://www.cell.com/joule/fulltext/S2542-4351(25)00003-0?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS2542435125000030%3Fshowall%3Dtrue
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"Importantly, the dihydrofuran-based thermosets undergo stimuli-selective degradation and can be recycled to the monomer under mild heating. The use of two distinct polymerization mechanisms on a single functional group allows the synthesis of degradable and recyclable thermoset materials with precisely controlled properties."
https://www.nature.com/articles/s41586-024-08386-w
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"Grafting is a successful approach for rejuvenating old, unproductive cacao trees, enhancing smallholder income opportunities and thus reducing pressure for new deforestation-based plantations... Hence, rejuvenation of cacao trees by grafting should be promoted and implemented as a promising strategy for more sustainable social-ecological cacao management, with economic and ecological benefits for smallholders"
https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2664.14851
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"Using field observations and numerical models, we show that groundwater flowing from tundra in northern coastal Alaska carries large amounts of freshwater, organic matter, and carbon dioxide to the Arctic lagoons during summer. These inputs are likely significant... Groundwater discharge and the associated transport of dissolved materials are expected to increase due to longer periods of above-zero temperatures that thaw frozen soils below the tundra"
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024GL109142
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"Our findings revealed profound chromatin, transcriptomic, and cellular alterations affecting neuronal and glial cells in focal cortical dysplasia (FCD) lesions, including the selective loss of upper-layer excitatory neurons, significant expansion of oligodendrocytes and immature astrocytic populations, and a distinct neuronal subpopulation harboring dysmorphic neurons. Furthermore, we uncovered activated microglia subsets, particularly in FCD IIb cases."
https://www.cell.com/iscience/fulltext/S2589-0042%2824%2902562-8
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"These data exemplify how scratching can both exacerbate disease and benefit the host through a neuroimmune axis and reconciles the seemingly paradoxical role of scratching as a pathological process and evolutionary adaptation."
https://www.science.org/doi/10.1126/science.adn9390
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"Genomic signatures indicate selection by ancient herders for pigmentation patterns, hornedness, and growth rate. Although the first European sheep flocks derive from Türkiye, in a notable parallel with ancient human genome discoveries, we detected a major influx of Western steppe–related ancestry in the Bronze Age."
https://www.science.org/doi/10.1126/science.adn2094
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"We interpret the increased SAM activity to be the response of the vestigial pinna–orienting system to an effortful stream segregation task."
https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2024.1462507/full
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i guess we're all playing a game called "let's see how much of our own country we can destroy" for the next few years :(
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