keyword
https://read.qxmd.com/read/38626500/generating-robust-aptamers-for-food-analysis-by-sequence-based-configuration-optimization
#1
REVIEW
Kaiyue Wei, Ziyang Ye, Wenhui Dong, Ling Zhang, Wenjing Wang, Jiao Li, Evgeni Eltzov, Sai Wang, Xiangzhao Mao
Advanced analytical techniques are emerging in the food industry. Aptamer-based biosensors achieve rapid and highly selective analysis, thus drawing particular attention. Aptamers are oligonucleotide probes screened via in vitro Systematic Evolution of Ligands by EXponential Enrichment (SELEX), which can bind with their specific targets by folding into three-dimensional configurations and accept various modifications to be incorporated into biosensors, showing great potential in food analysis. Unfortunately, aptamers obtained by SELEX may not possess satisfactory affinity...
April 8, 2024: Talanta
https://read.qxmd.com/read/38626467/bilateral-spheno-orbital-meningiomas-surgical-management-progression-and-recurrence
#2
JOURNAL ARTICLE
Alexia Planty-Bonjour, Louis-Marie Terrier, Gabrielle Cognacq, Mourad Aggad, Florian Bernard, Camille Lopez, Gaston Tabourel, Guillaume Dannhoff, Frederic Bako, Gaëlle Kerdiles, Patrick Francois, Aymeric Amelot
OBJECTIVE: Bilateral spheno-orbital meningiomas (bSOMs) are a rare entity among meningiomas. These tumors are benign and predominantly affect women. They represent 4% of spheno-orbital meningiomas (SOMs) and are poorly described in the literature. This study aimed to describe the characteristics, risk factors, evolution, and management of bSOMs. METHODS: Twenty patients with bSOMs were enrolled in a multicentric descriptive study including 15 neurosurgical departments...
April 19, 2024: Journal of Neurosurgery
https://read.qxmd.com/read/38626466/studying-transient-phenomena-in-thin-films-with-reinforcement-learning
#3
JOURNAL ARTICLE
Mathieu Doucet, Riccardo Candeago, Hanyu Wang, James F Browning, Xiao Su
Neutron reflectometry has long been a powerful tool to study the interfacial properties of energy materials. Recently, time-resolved neutron reflectometry has been used to better understand transient phenomena in electrochemical systems. Those measurements often comprise a large number of reflectivity curves acquired over a narrow q range, with each individual curve having lower information content compared to a typical steady-state measurement. In this work, we present an approach that leverages existing reinforcement learning tools to model time-resolved data to extract the time evolution of structure parameters...
April 16, 2024: Journal of Physical Chemistry Letters
https://read.qxmd.com/read/38626465/anchored-cobalt-nanoparticles-on-layered-perovskites-for-rapid-peroxymonosulfate-activation-in-antibiotic-degradation
#4
JOURNAL ARTICLE
Yaobin Wang, Dong Li, Xinlei Ge, Jianghua Yu, Yunxia Zhao, Yunfei Bu
In the Fenton-like reaction, revealing the dynamic evolution of the active sites is crucial to achieve the activity improvement and stability of the catalyst. This study reports a perovskite oxide in which atomic (Co0 ) in-situ embedded exsolution occurs during the high-temperature phase transition. This unique anchoring strategy significantly improves the Co3+ /Co2+ cycling efficiency at the interface and inhibits metal leaching during peroxymonosulfate (PMS) activation. The Co@L-PBMC catalyst exhibited superior PMS activation ability and could achieve 99% degradation of tetracycline within 5 min...
April 16, 2024: Advanced Materials
https://read.qxmd.com/read/38626455/cobalt-catalyzed-acceptorless-dehydrogenation-of-primary-amines-to-nitriles
#5
JOURNAL ARTICLE
Haitao Tian, Cai-Yun Ding, Rong-Zhen Liao, Man Li, Conghui Tang
The direct double dehydrogenation from primary amines to nitriles without an oxidant or hydrogen acceptor is both intriguing and challenging. In this paper, we describe a non-noble metal catalyst capable of realizing such a transformation with high efficiency. A cobalt-centered N , N- bidentate complex was designed and employed as a metal-ligand cooperative dehydrogenation catalyst. Detailed kinetic studies, control experiments, and DFT calculations revealed the crucial hydride transfer, proton transfer, and hydrogen evolution processes...
April 16, 2024: Journal of the American Chemical Society
https://read.qxmd.com/read/38626418/pure-zro-2-ferroelectric-thin-film-for-nonvolatile-memory-and-neural-network-computing
#6
JOURNAL ARTICLE
Zijian Wang, Zeyu Guan, He Wang, Xiang Zhou, Jiachen Li, Shengchun Shen, Yuewei Yin, Xiaoguang Li
The recent discovery of ferroelectricity in pure ZrO2 has drawn much attention, but the information storage and processing performances of ferroelectric ZrO2 -based nonvolatile devices remain open for further exploration. Here, a ZrO2 (∼8 nm)-based ferroelectric capacitor using RuO2 oxide electrodes is fabricated, and the ferroelectric orthorhombic phase evolution under electric field cycling is studied. A ferroelectric remnant polarization (2 P r ) of >30 μC/cm2 , leakage current density of ∼2...
April 16, 2024: ACS Applied Materials & Interfaces
https://read.qxmd.com/read/38626413/cemented-stem-design-in-total-hip-arthroplasty-fixation-philosophies-biomechanics-and-an-updated-classification-system
#7
JOURNAL ARTICLE
Vishal Hegde, Andrew B Harris, Bryan D Springer, Harpal S Khanuja
There is renewed interest in cemented femoral fixation in total hip arthroplasty in the United States, and to fully appreciate the evolution of cemented femoral stem designs, an understanding of their history and design rationale is essential. To adequately study the outcomes of modern-day designs, a comprehensive classification system is also necessary. The biomechanical principles, failure mechanisms, and clinical outcomes associated with various cemented femoral stems are described in this comprehensive review...
April 10, 2024: Journal of the American Academy of Orthopaedic Surgeons
https://read.qxmd.com/read/38626392/alphafun-structural-alignment-based-proteome-annotation-reveals-why-the-functionally-unknown-proteins-upe1-are-so-understudied
#8
JOURNAL ARTICLE
Hengxin Pan, Zhenqi Wu, Wanting Liu, Gong Zhang
With the rapid expansion of sequencing of genomes, the functional annotation of proteins becomes a bottleneck in understanding proteomes. The Chromosome-centric Human Proteome Project (C-HPP) aims to identify all proteins encoded by the human genome and find functional annotations for them. However, until now there are still 1137 identified human proteins without functional annotation, called uPE1 proteins. Sequence alignment was insufficient to predict their functions, and the crystal structures of most proteins were unavailable...
April 16, 2024: Journal of Proteome Research
https://read.qxmd.com/read/38626302/museum-genomics-approach-to-study-the-taxonomy-and-evolution-of-woolly-necked-storks-using-historic-specimens
#9
JOURNAL ARTICLE
Prashant Ghimire, Catalina Palacios, Jeremiah Trimble, Sangeet Lamichhaney
The accessibility of genomic tools in evolutionary biology has allowed for a thorough exploration of various evolutionary processes associated with adaptation and speciation. However, genomic studies in natural systems present numerous challenges, reflecting the inherent complexities of studying organisms in their native habitats. The utilization of museum specimens for genomics research has received increased attention in recent times, facilitated by advancements in ancient DNA techniques. In this study, we have utilized a museum genomics approach to analyze historic specimens of Woolly-necked storks (Ciconia sps...
April 16, 2024: G3: Genes—Genomes—Genetics
https://read.qxmd.com/read/38626289/shaping-the-future-of-oral-cancer-diagnosis-advances-in-salivary-proteomics
#10
REVIEW
Oriana Barros, Vito G D'Agostino, Lucio Lara Santos, Rui Vitorino, Rita Ferreira
INTRODUCTION: Saliva has gained increasing attention in the quest for disease biomarkers. Because it is a biological fluid that can be collected is an easy, painless, and safe way, it has been increasingly studied for the identification of oral cancer biomarkers. This is particularly important because oral cancer is often diagnosed at late stages with a poor prognosis. AREAS COVERED: The review addresses the evolution of the experimental approaches used in salivary proteomics studies of oral cancer over the years and outlines advantages and pitfalls related to each one...
April 16, 2024: Expert Review of Proteomics
https://read.qxmd.com/read/38626244/genetic-drift-and-purifying-selection-shape-within-host-influenza-a-virus-populations-during-natural-swine-infections
#11
JOURNAL ARTICLE
David VanInsberghe, Dillon S McBride, Juliana DaSilva, Thomas J Stark, Max S Y Lau, Samuel S Shepard, John R Barnes, Andrew S Bowman, Anice C Lowen, Katia Koelle
Patterns of within-host influenza A virus (IAV) diversity and evolution have been described in natural human infections, but these patterns remain poorly characterized in non-human hosts. Elucidating these dynamics is important to better understand IAV biology and the evolutionary processes that govern spillover into humans. Here, we sampled an IAV outbreak in pigs during a week-long county fair to characterize viral diversity and evolution in this important reservoir host. Nasal wipes were collected on a daily basis from all pigs present at the fair, yielding up to 421 samples per day...
April 16, 2024: PLoS Pathogens
https://read.qxmd.com/read/38626197/chorematic-modeling-to-represent-dynamics-in-the-quinoa-agroecosystems-in-peru
#12
JOURNAL ARTICLE
Francesca Fagandini Ruiz, Antonio Villanueva, Didier Bazile
Our research occurred in the Andean region, one of the eight global centers of domestication of plant species grown for agriculture. The shores of Lake Titicaca (located between Peru and Bolivia), at 3800 meters above sea level, are recognized as the center of origin of quinoa (Chenopodium quinoa Willd.). In this region, complex societies have emerged, thanks to the development of water and soil management technologies. They have managed to overcome high mountain territories' extreme and variable climatic conditions...
2024: PloS One
https://read.qxmd.com/read/38626104/mental-health-and-burnout-during-medical-school-longitudinal-evolution-and-covariates
#13
JOURNAL ARTICLE
Valerie Carrard, Sylvie Berney, Céline Bourquin, Setareh Ranjbar, Enrique Castelao, Katja Schlegel, Jacques Gaume, Pierre-Alexandre Bart, Marianne Schmid Mast, Martin Preisig, Alexandre Berney
BACKGROUND: Medical students' rate of depression, suicidal ideation, anxiety, and burnout have been shown to be higher than those of the same-age general population. However, longitudinal studies spanning the whole course of medical school are scarce and present contradictory findings. This study aims to analyze the longitudinal evolution of mental health and burnout from the first to the last year of medical school using a wide range of indicators. Moreover, biopsychosocial covariates that can influence this evolution are explored...
2024: PloS One
https://read.qxmd.com/read/38626047/did-covid-19-make-things-worse-the-pandemic-as-a-push-factor-stimulating-the-emigration-intentions-of-junior-doctors-from-poland-a-mixed-methods-study
#14
JOURNAL ARTICLE
Dominika Pszczółkowska, Sara Bojarczuk, Maciej Duszczyk, Kamil Matuszczyk, Emilia Szyszkowska
Covid-19 has challenged health systems around the world and increased the global competition for medical professionals. This article investigates if the pandemic and its management became an important push factor influencing the migration intentions of medical students and junior doctors and how this factor compared in importance to others. A mixed methods study-a survey and in-depth interviews-was conducted with final-year students at public medical universities in Poland, a country already suffering from a significant emigration of medical staff...
2024: PloS One
https://read.qxmd.com/read/38625942/unveil-the-origin-of-voltage-oscillation-for-sodium-ion-batteries-operating-at-40-%C3%A2-c
#15
JOURNAL ARTICLE
Lanfang Que, Fuda Yu, Jihuai Wu, Zhang Lan, Yutong Feng, Ruizheng Zhao, Zhihao Sun, Zhuo Yang, Hao Luo, Dongliang Chao
Voltage oscillation at subzero in sodium-ion batteries (SIBs) has been a common but overlooked scenario, almost yet to be understood. For example, the phenomenon seriously deteriorates the performance of Na3 V2 (PO4 )3 (NVP) cathode in PC (propylene carbonate)/EC (ethylene carbonate)-based electrolyte at -20 °C. Here, the correlation between voltage oscillation, structural evolution, and electrolytes has been revealed based on theoretical calculations, in-/ex-situ techniques, and cross-experiments. It is found that the local phase transition of the Na3 V2 (PO4 )3 (NVP) cathode in PC/EC-based electrolyte at -20 °C should be responsible for the oscillatory phenomenon...
April 23, 2024: Proceedings of the National Academy of Sciences of the United States of America
https://read.qxmd.com/read/38625816/parallel-executive-pallio-motor-loops-in-the-pigeon-brain
#16
JOURNAL ARTICLE
Alina Steinemer, Annika Simon, Onur Güntürkün, Noemi Rook
A core component of the avian pallial cognitive network is the multimodal nidopallium caudolaterale (NCL) that is considered to be analogous to the mammalian prefrontal cortex (PFC). The NCL plays a key role in a multitude of executive tasks such as working memory, decision-making during navigation, and extinction learning in complex learning environments. Like the PFC, the NCL is positioned at the transition from ascending sensory to descending motor systems. For the latter, it sends descending premotor projections to the intermediate arcopallium (AI) and the medial striatum (MSt)...
April 2024: Journal of Comparative Neurology
https://read.qxmd.com/read/38625740/toxic-to-the-touch-the-makings-of-lethal-mantles-in-pitohui-birds-and-poison-dart-frogs
#17
JOURNAL ARTICLE
Sophie Zaaijer, Simon C Groen
How do chemically defended animals resist their own toxins? This intriguing question on the concept of autotoxicity is at the heart of how species interactions evolve. In this issue of Molecular Ecology (Molecular Ecology, 2024, 33), Bodawatta and colleagues report on how Papua New Guinean birds coopted deadly neurotoxins to create lethal mantles that protect against predators and parasites. Combining chemical screening of the plumage of a diverse collection of passerine birds with genome sequencing, the researchers unlocked a deeper understanding of how some birds sequester deadly batrachotoxin (BTX) from their food without poisoning themselves...
April 16, 2024: Molecular Ecology
https://read.qxmd.com/read/38625567/transition-metal-based-electrocatalysts-for-alkaline-overall-water-splitting-advancements-challenges-and-perspectives
#18
REVIEW
Muhammad Nazim Lakhan, Abdul Hanan, Altaf Hussain, Irfan Ali Soomro, Yuan Wang, Mukhtiar Ahmed, Umair Aftab, Hongyu Sun, Hamidreza Arandiyan
Water electrolysis is a promising method for efficiently producing hydrogen and oxygen, crucial for renewable energy conversion and fuel cell technologies. The hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are two key electrocatalytic reactions occurring during water splitting, necessitating the development of active, stable, and low-cost electrocatalysts. Transition metal (TM)-based electrocatalysts, spanning noble metals and TM oxides, phosphides, nitrides, carbides, borides, chalcogenides, and dichalcogenides, have garnered significant attention due to their outstanding characteristics, including high electronic conductivity, tunable valence electron configuration, high stability, and cost-effectiveness...
April 16, 2024: Chemical Communications: Chem Comm
https://read.qxmd.com/read/38625547/the-transition-of-general-practice-into-an-academic-discipline-tracing-the-origins-through-the-first-four-professors-in-general-practice-family-medicine
#19
REVIEW
Jørund Straand, Niek de Wit
Being the 'mother' of most clinical specialties, general practice is as old as medicine itself. However, as a recognized academic discipline within medical schools, general practice has a relatively short life span. A decisive step forward was taken in 1956 when the University of Edinburgh established its Department of General Practice, and appointed the world's inaugural professor in the field in 1963. During the 1960s, the pioneering move in Edinburgh was followed by universities in the Netherlands (University of Utrecht), Canada (Western University, Ontario), and Norway (University of Oslo), marking the beginning of global academic recognition for general practice/family medicine...
April 16, 2024: Scandinavian Journal of Primary Health Care
https://read.qxmd.com/read/38625518/infected-pancreatic-necrosis-current-trends-in-management
#20
REVIEW
Jimil Shah, Michael Fernandez Y Viesca, Robert Jagodzinski, Marianna Arvanitakis
Acute necrotizing pancreatitis is a common gastrointestinal disease requiring hospitalization and multiple interventions resulting in higher morbidity and mortality. Development of infection in such necrotic tissue is one of the sentinel events in natural history of necrotizing pancreatitis. Infected necrosis develops in around 1/3rd of patients with necrotizing pancreatitis resulting in higher mortality. So, timely diagnosis of infected necrosis using clinical, laboratory and radiological parameters is of utmost importance...
April 16, 2024: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
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