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作者：Gellers, Joshua C.
作者单位：State University System of Florida; University of North Florida
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作者：Sheeran, William M.; Donaldson, Zoe R.
作者单位：University of Colorado System; University of Colorado Boulder; University of Colorado System; University of Colorado Anschutz Medical Campus; University of Colorado System; University of Colorado Boulder
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作者：Brainard, Jeffrey
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作者：Fan, Xianqiang; Fleming, Tristan G.; Clark, Samuel J.; Fezzaa, Kamel; Getley, Anna C. M.; Marussi, Sebastian; Wang, Hongze; Leung, Chu Lun Alex; Kao, Andrew; Lee, Peter D.
作者单位：University of London; University College London; Queens University - Canada; United States Department of Energy (DOE); Argonne National Laboratory; Shanghai Jiao Tong University; Shanghai Jiao Tong University; University of Greenwich
摘要：Keyhole instability during laser welding and laser powder bed fusion (LPBF) can cause keyhole collapse and pore formation. Using high-speed x-ray imaging, we demonstrate that the flow vortex-induced protrusion on the rear keyhole wall is crucial in initiating keyhole instability. Applying a transverse magnetic field suppresses the keyhole instability by driving a secondary thermoelectric magnetohydrodynamics (TEMHD) flow that alters the net flow vortex. This minimizes protrusions and large-amp...
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作者：Paul, Avraneel
作者单位：University of Alabama System; University of Alabama Birmingham
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作者：Ravindran, Sandeep
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作者：Sun, Fangmiao; Wu, Ye Emily; Hong, Weizhe
作者单位：University of California System; University of California Los Angeles; University of California Los Angeles Medical Center; David Geffen School of Medicine at UCLA; University of California System; University of California Los Angeles; University of California Los Angeles Medical Center; David Geffen School of Medicine at UCLA; University of California System; University of California Los Angeles
摘要：Humans often take actions to assist others experiencing unresponsiveness, such as transient loss of consciousness. How other animals react to unresponsive conspecifics-and the neural mechanisms driving such behaviors-remain largely unexplored. In this study, we demonstrated that mice exhibit rescue-like social behaviors toward unresponsive conspecifics, characterized by intense physical contact and grooming directed at the recipient's facial and mouth areas, which expedite their recovery from ...
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作者：Andrews, Kristin; Birch, Jonathan; Sebo, Jeff
作者单位：York University - Canada; University of London; London School Economics & Political Science; New York University
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作者：Gainty, Caitjan
作者单位：University of London; King's College London
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作者：Campos, Diego S.; Oliveira, Rafael F.; Vieira, Lucas O.; Ottoni, Felipe P.
作者单位：Universidade Federal do Maranhao; Universidade Federal do Maranhao
