383 results match your criteria: "University of Virginia-Charlottesville[Affiliation]"

Thumb carpometacarpal (CMC) arthroplasty with resection of the trapezium and soft tissue interposition, with or without ligament reconstruction, has historically proven to be an efficacious treatment for thumb CMC arthritis. The incidence of failure following primary thumb CMC arthroplasty is low; however, the evaluation and management of a patient experiencing an unsatisfactory outcome following CMC arthroplasty is challenging. If symptoms are refractory to conservative measures, then revision surgical treatment may be indicated.

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The main driver of soil organic carbon differs greatly between topsoil and subsoil in a grazing steppe.

Ecol Evol

August 2022

Key Laboratory of Ecology and Resource Use of the Mongolian Plateau Ministry of Education of China Hohhot China.

Soil organic carbon (SOC) dynamics is regulated by a complex interplay of factors such as climate and potential anthropogenic activities. Livestocks play a key role in regulating the C cycle in grasslands. However, the interrelationship between SOC and these drivers remains unclear at different soil layers, and their potential relationships network have rarely been quantitatively assessed.

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Objective: Weight control programs that incorporate group sessions produce greater weight losses, but this has not been explored in the context of online programs. Further, counselor-crafted self-monitoring feedback is a core element of lifestyle interventions, although pre-scripted, modular feedback which does not require detailed counselor review may adequately promote weight loss. The current study explored the weight losses achieved in an online program that included facilitated group sessions, as well as outcomes when counselor-crafted self-monitoring feedback was provided.

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Objective: Dietary self-monitoring is consistently related to both short- and long-term weight loss, but typically declines over time. Adopting an abbreviated approach to self-monitoring might reduce burden and potentially increase engagement while maintaining efficacy.

Methods: Using a Delphi-type study, experts were queried about abbreviated self-monitoring approaches that might best balance efficacy and burden and asked to identify when these approaches might best be implemented within a behavioral weight loss program.

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A Lifelong Perspective for Cognitive Health in Old Age.

Neurology

September 2022

From the Department of Psychiatry (M.S.B.), Icahn School of Medicine at Mount Sinai, New York; The Joseph Sagol Neuroscience Center (M.S.B.), Sheba Medical Center, Israel; and Thalheimer Family Bicentennial (A.D.A.), Department of Neurology, University of Virginia Charlottesville.

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Recent advances in satellite observations of solar-induced chlorophyll fluorescence (SIF) provide a new opportunity to constrain the simulation of terrestrial gross primary productivity (GPP). Accurate representation of the processes driving SIF emission and its radiative transfer to remote sensing sensors is an essential prerequisite for data assimilation. Recently, SIF simulations have been incorporated into several land surface models, but the scaling of SIF from leaf-level to canopy-level is usually not well-represented.

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Space weathering is a key process in the interpretation of airless planetary surfaces. As we engage new missions to planetary objects with potentially novel surfaces such as 16 Psyche, there is renewed interest in expanding our knowledge of space weathering effects to a wider variety of analog materials, including the physical/chemical effects of solar-wind ions on planetary regoliths. We have experimentally simulated the effects of solar ions on two polished thick sections of meteoritic troilite (FeS) via irradiation with 1 keV hydrogen (H) and 4 keV helium (He), to investigate effects resulting from different ion species.

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Article Synopsis
  • This research examines how image texture analysis (radiomics) from FDG-PET/CT scans can reveal tumor characteristics that may help predict survival outcomes in patients with untreated diffuse large B-cell lymphoma (DLBCL).
  • A random forest model that incorporates quantitative image texture features and clinical risk factors was created and tested against the conventional international prognostic index (IPI) to improve predictions on patient survival.
  • The findings suggest that combining PET-derived texture analysis with traditional clinical factors can better identify high-risk patient groups, leading to more accurate predictions of progression-free and overall survival rates than using IPI alone.
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Temperature and its impact on fitness are fundamental for understanding range shifts and population dynamics under climate change. Geographic climate heterogeneity, behavioral and physiological plasticity, and thermal adaptation to local climates make predicting the responses of species to climate change complex. Using larvae from seven geographically distinct wild populations in the eastern United States of the non-native forest pest (L.

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Intrasexual interactions can determine which individuals within a population have access to limited resources. Despite their potential importance on fitness generally and mating success especially, female-female interactions are not often measured in the same species where male-male interactions are well-defined. In this study, we characterized female-female interactions in , a mycophagous beetle species native to Northeastern North America.

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Unlabelled: Research suggests a link between Alzheimer's Disease in Down Syndrome (DS) and the overproduction of amyloid plaques. Using Positron Emission Tomography (PET) we can assess the in-vivo regional amyloid load using several available ligands. To measure amyloid distributions in specific brain regions, a brain atlas is used.

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Resin 3D printing, especially digital light processing (DLP) printing, is a promising rapid fabrication method for bio-microfluidic applications such as clinical tests, lab-on-a-chip devices, and sensor integrated devices. The benefits of 3D printing lead many to believe this fabrication method will accelerate the use of microfluidics, but there are a number of potential obstacles to overcome for bioanalytical labs to fully utilize this technology. For commercially available printing materials, this includes challenges in producing prints with the print resolution and mechanical stability required for a particular design, along with cytotoxic components within many photopolymerizing resins and low optical compatibility for imaging experiments.

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Article Synopsis
  • Bacterial cell walls are key targets for antibiotics like vancomycin and innate immune proteins, which help combat infections.
  • Some harmful bacteria have developed strategies to limit the effectiveness of these immune proteins and protect their cell walls.
  • A new assay was created to assess how accessible certain molecules are to the bacterial cell wall, revealing genes that can increase this accessibility and influence vulnerability to treatments like lysostaphin.
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Since the onset of the global pandemic of coronavirus disease 2019 (COVID-19), there is an urgent need to understand the pathogenesis of the common inflammatory and thrombotic complications associated with this illness leading to multiorgan failure and mortality. It is well established that platelets are hyperactivated during COVID-19. Data from independent studies reported an angiotensin-converting enzyme (ACE2)-dependent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) platelet interaction, raising the concern whether ACE2 receptor is the "key receptor" in this process, while other platelet research groups demonstrated that thrombotic events occur via ACE2-independent mechanisms, where the virus probably uses alternative pathways.

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Described are the first examples of Lewis acid-promoted Diels-Alder reactions of vinylpyridines and other vinylazaarenes with unactivated dienes. Cyclohexyl-appended azaarenes constitute a class of substructures of rising prominence in drug discovery. Despite this, thermal variants of the vinylazaarene Diels-Alder reaction are rare and have not been adopted for synthesis, and Lewis acid-promoted variants are virtually unexplored.

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Article Synopsis
  • The COVID-19 pandemic has led to a global health crisis, prompting many countries to implement strict measures that have significantly altered societal dynamics.
  • This situation has fostered a sentiment of societal discontent, which is defined as a collective worry about society's fragile state and can drive individuals to engage in altruistic behavior.
  • The study analyzed data from 42 countries and found that higher societal discontent increases individuals' willingness to help others affected by COVID-19, highlighting important implications for crisis management strategies.
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Using the bivariate dual change score approach, the present study investigated the directionality of the SMC-OMP association in a sample of healthy older adults (N = 2,057) from the Virginia Cognitive Aging Project. The sample was assessed throughout 10 years, five time points, and the impact of education, depressive symptoms, and low-memory functioning was tested. The Memory Functioning Questionnaire was used to assess SMC.

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