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Learned phenotypes emerge during social stress modifying hippocampal orexin receptor gene expression.
Sci Rep
December 2024
Department of Biology, University of South Dakota, 414 East Clark Street, Vermillion, SD, 57069-2390, USA.
Psychological distress, including anxiety or mood disorders, emanates from the onset of chronic/unpredictable stressful events. Symptoms in the form of maladaptive behaviors are learned and difficult to treat. While the origin of stress-induced disorders seems to be where learning and stress intersect, this relationship and molecular pathways involved remain largely unresolved.
View Article and Find Full Text PDFSmells like … no evidence that odors influence the attentional blink.
Atten Percept Psychophys
December 2024
Cognitive Psychology, Institute of Psychology, University of Hildesheim, Universitaetsplatz 1, D-31141, Hildesheim, Germany.
The attentional blink (AB) paradigm is frequently used to investigate temporal attention. Essentially, rapid serial visual streams of several distractors and two targets are presented. The accuracy in detecting the second target stimulus (T2) decreases in the time window between 100 and 500 ms following accurate detection of the first target stimulus (T1).
View Article and Find Full Text PDFNear-atomic cryo-EM structure of the light-harvesting complex LH2 from the sulfur purple bacterium Ectothiorhodospira haloalkaliphila.
Structure
December 2024
Bach Institute of Biochemistry, Research Center of Biotechnology Russian Academy of Sciences, Leninsky pr-t, 33, bld. 2, Moscow 119071, Russia. Electronic address:
Bacteria with the simplest system for solar energy absorption and conversion use various types of light-harvesting complexes for these purposes. Light-harvesting complex 2 (LH2), an important component of the bacterial photosynthetic apparatus, has been structurally well characterized among purple non-sulfur bacteria. In contrast, so far only one high-resolution LH2 structure from sulfur bacteria is known.
View Article and Find Full Text PDFA community-based task shifting program in 25 remote indigenous communities in Nunavut, Canada.
Int J Circumpolar Health
December 2025
Department of Global Health, McMaster University, Hamilton, Ontario, Canada.
Task shifting can improve access, availability, efficiency, and quality of health services in under resourced settings. Task shifting can occur formally or informally within health professions, between health professions, between support staff and health professions, or between lay community members and health professionals. There are currently thousands of Indigenous peoples in Canada's high Arctic, living in remote communities, north of the 60 parallel with limited access to basic medical services.
View Article and Find Full Text PDFNew approaches in pear preservation: Putrescine and modified atmosphere packaging applications to maintain fruit quality during cold storage.
Food Sci Nutr
September 2024
Faculty of Agriculture, Department of Horticulture Van Yüzüncü Yıl University Van Turkey.
Pear ( L.), which is a climacteric fruit species, has a very short storage and shelf life, and significant losses occur due to high metabolic activity and the fruit's respiration rate after harvest. Therefore, preventing or reducing post-harvest quality losses in pear is one of the most basic problems awaiting solution.
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