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Concomitant formation of protocells and prebiotic compounds under a plausible early Earth atmosphere.
Proc Natl Acad Sci U S A
January 2025
Laboratory of Crystallographic Studies, Instituto Andaluz de Ciencias de la Tierra, Consejo Superior de Investigaciones Científica, Armilla 18100, Spain.
Revealing the origin of life and unambiguously detecting fossil remains of the earliest organisms are closely related aspects of the same scientific research. The synthesis of prebiotic molecular building blocks of life and the first compartmentalization into protocells have been considered two events apart in time, space, or both. We conducted lightning experiments in borosilicate reactors filled with a mixture of gases mimicking plausible geochemical conditions of early Earth.
View Article and Find Full Text PDFThe 1831 CE mystery eruption identified as Zavaritskii caldera, Simushir Island (Kurils).
Proc Natl Acad Sci U S A
January 2025
Archaeology & Palaeoecology, School of Natural and Built Environment, Queen's University, Belfast BT9 3AZ, United Kingdom.
Polar ice cores and historical records evidence a large-magnitude volcanic eruption in 1831 CE. This event was estimated to have injected ~13 Tg of sulfur (S) into the stratosphere which produced various atmospheric optical phenomena and led to Northern Hemisphere climate cooling of ~1 °C. The source of this volcanic event remains enigmatic, though one hypothesis has linked it to a modest phreatomagmatic eruption of Ferdinandea in the Strait of Sicily, which may have emitted additional S through magma-crust interactions with evaporite rocks.
View Article and Find Full Text PDFBridging thrombolysis versus direct endovascular treatment in acute vertebrobasilar artery complex occlusion.
J Neurosurg
January 2025
1Department of Neurology, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui.
Objective: Endovascular treatment (EVT) is an effective treatment for patients with acute vertebrobasilar artery complex occlusion (VBAO). However, the benefit of bridging thrombolysis prior to EVT remains controversial. The purpose of the present study is to explore the best treatment strategy between bridging treatment (BT) and direct EVT in patients with acute VBAO.
View Article and Find Full Text PDFEffectiveness of oral health promotion in children and adolescents through behaviour change interventions: A scoping review.
PLoS One
January 2025
Department of Prosthodontics, Faculty of Dentistry, University of the Western Cape, Cape Town, South Africa.
Objective: To explore the interventions for change in oral health behaviour that are effective in improving oral health behaviours in 8 to 18-year-old children during oral health promotion.
Methods: The Joanna Briggs Institute framework of evidence synthesis for conducting a scoping review was implemented for the methodology. Included studies related to the objective, measured clinical or non-clinical outcomes, were in English, 2011-2023, and were experimental, observational or reviews.
Association between preoperative serum albumin levels and length of stay in elderly patients with hip fractures: A nonlinear relationship.
Medicine (Baltimore)
January 2025
Teaching Office, Second People's Hospital of Shenzhen (First Affiliated Hospital of Shenzhen University), Shenzhen City, China.
Previous studies have provided relatively limited evidence in examining the impact of preoperative serum albumin levels on the length of hospital stay (LOS) in patients with hip fractures. This study aimed to elucidate the association between preoperative serum albumin levels and LOS in elderly patients with hip fractures. This retrospective cohort study included 1444 elderly patients undergoing surgical treatment for hip fractures at the Second People's Hospital of Shenzhen from January 2012 to December 2021.
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