24,455 results match your criteria: "New Hampshire; and Veterans Affairs Medical Center N.R.[Affiliation]"

Anthropogenic nitrogen (N) deposition is unequally distributed across space and time, with inputs to terrestrial ecosystems impacted by industry regulations and variations in human activity. Soil carbon (C) content normally controls the fraction of mineralized N that is nitrified (ƒ), affecting N bioavailability for plants and microbes. However, it is unknown whether N deposition has modified the relationships among soil C, net N mineralization, and net nitrification.

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Objectives: It is estimated that 20% of patients undergoing elective abdominal aortic aneurysm (AAA) repair suffer from cardiomyopathy. This study examines the impact of reduced ejection fraction (EF) on the outcomes of endovascular aneurysm repair (EVAR) and compares the different types of cardiomyopathies causing reduction of EF. Our hypothesis is that reduction in EF is associated with higher mortality after EVAR.

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Celebrating 30 Years at the Heart of Precision Medicine.

J Mol Diagn

January 2025

Association for Molecular Pathology, Rockville, Maryland; Laboratory for Clinical Genomics and Advanced Technology, Department of Pathology and Laboratory Medicine, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire; Dartmouth Cancer Center, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire.

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The methylome of clonal seagrass shoots shows age-associated variation and differentiation of roots from other tissues.

Biochim Biophys Acta Gen Subj

December 2024

Algal and Microbial Biotechnology Division, Faculty of Biosciences and Aquaculture, Nord University, Universitetsalléen 11, 8026 Bodø, Norway.

Factors influencing variance of DNA methylation in vegetatively reproducing plants, both terrestrial plants and aquatic seagrasses, is just beginning to be understood. Improving our knowledge of these mechanisms will increase understanding of transgenerational epigenetics in plant clones, of the relationship between DNA methylation and seagrass development, and of the drivers of epigenetic variation, which may underly acclimation in clonally reproducing plants. Here, we sampled leaves, rhizomes and roots of three physically and spatially separated ramet sections from a clonally propagated field of the seagrass Zostera marina.

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This paper describes the use of the layered conductive metal-organic framework (MOF) (nickel)-(hexahydroxytriphenylene) [Ni(HHTP)] as a model system for understanding the process of self-assembly within this class of materials. We confirm and quantify experimentally the role of the oxidant in the synthetic process. Monitoring the deposition of Ni(HHTP) with infrared spectroscopy revealed that MOF formation is characterized by an initial induction period, followed by linear growth with respect to time.

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Introduction: Chronotypes and perceived stress can predict psychiatric symptoms and affect sleep quality, though the relationships between these factors are not completely described. This study explores the influence of chronotypes and perceived stress on sleep quality among undergraduates.

Methods: An online survey was administered to a convenience sample of 110 undergraduates aged 18-23 years (mean age 20.

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Background: Non-small-cell lung cancer (NSCLC) remains a global health challenge, driving morbidity and mortality. The emerging field of radiogenomics utilizes statistical methods to correlate radiographic tumor features with genomic characteristics from biopsy samples. Radiomic techniques automate the precise extraction of imaging features from tumor regions in radiographic scans, which are subjected to machine learning (ML) to predict genomic attributes.

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Introduction: Guns were one of the leading causes of death in children and youth aged 0-24 years in the U.S. over the last decade, with large variations by sex, race, region, and income.

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Oncological and Clinical Impacts of Routine Splenic Flexure Mobilization in Anterior Resection.

Cureus

November 2024

Colorectal Surgery, The Royal Wolverhampton NHS Trust, Wolverhampton, GBR.

Background Splenic flexure mobilization (SFM) is widely regarded as one of the most challenging steps in laparoscopic and robotic colorectal surgery, sparking ongoing debate. Some surgeons routinely advocate for SFM, citing its role in achieving greater left colonic reach, which facilitates a safe, tension-free, and well-vascularized anastomosis while adhering to oncological principles. Conversely, others argue that SFM does not consistently ensure these benefits and may increase the risk of complications, including splenic, bowel, or vascular injuries, as well as unnecessarily prolonging the procedure.

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Keeping up with Recent Developments in Immunodeficiency.

Ann Allergy Asthma Immunol

December 2024

Division of Pediatric Pulmonology, Allergy and Immunology, Department of Pediatrics, Medical University of South Carolina, South Carolina, USA. Electronic address:

Inborn Errors of Immunity are a rapidly expanding group of monogenetic disorders affecting the immune system. Advancements in genetic testing and functional validation studies have accelerated the pace of IEI gene discovery and mechanism of disease, particularly in the past five years. To keep up with this rapid expansion, the International Union of Immunological Societies (IUIS) Expert Committee has periodically, since 1999, released updated IEI classifications with corresponding genotypic and phenotypic catalogues with its most recent update in 2022.

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Diet of the blue crab (Callinectes sapidus) during range expansion in Great Bay Estuary, New Hampshire.

BMC Genomics

December 2024

Department of Biological Sciences, Ecological Genetics Laboratory, University of New Hampshire, 38 Academic Way, Durham, NH, 03824, USA.

Great Bay Estuary (GBE), within the rapidly warming Gulf of Maine, has experienced significant ecological shifts this century due to naturalization of invasive species. The range expansion of the American blue crab (Callinectes sapidus) currently underway from the mid-Atlantic northward brings the possibility of similar ecological shifts. This study accounts recent trapping and diet analysis of C.

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Chimeric antigen receptor (CAR) T-cell therapy has revolutionized treatment of aggressive large B-cell lymphoma (aLBCL). Patients with transformed indolent non-Hodgkin lymphoma (tiNHL) were included in key CAR trials, but outcomes of CAR for this distinct, historically high-risk group are poorly understood. We conducted a multicenter retrospective study of 1182 patients with aLBCL receiving standard-of-care CAR T between 2017 and 2022, including 338 (29%) with tiNHL.

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Importance: Fenestrated and branched endovascular aortic repairs (F/BEVAR) have been adopted by many centers. However, national trends of F/BEVAR use remain unclear, particularly at sites who perform them without an US Food and Drug Adminstration (FDA)-approved investigational device exemption (IDE).

Objective: To quantify the use of F/BEVAR in the US and to determine if mortality was different at IDE vs non-IDE sites.

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Ionization Characteristics of Glycan Homologues in Various Modes of Electrospray.

J Am Soc Mass Spectrom

December 2024

Department of Chemistry, University of New Hampshire, 23 Academic Way, Durham, New Hampshire 03824, United States.

Fluorescence labeled glycan homologous mixtures were quantified using fluorescence and then used to evaluate ionization performances in electrospray ionization at micro, nano, and femto flow modes. nanoESI produced higher (2+ and 3+) charged ions adducted with sodium and calcium. In comparison, femtoESI was found to favor the generation of [M + H] ions against metal adducts, even with nonvolatile salts up to 1 mM for NaCl and 100 μM for CaCl.

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Background: This study is a phase II clinical trial to evaluate the efficacy, safety, and tolerability of the blood-brain barrier (BBB) permeable peptide-paclitaxel conjugate ANG1005 in patients with recurrent high-grade glioma (HGG) (NCT01967810).

Methods: Seventy-three patients were enrolled in 3 separate arms-recurrent glioblastoma (GBM) (Arm 1), bevacizumab refractory GBM (Arm 2), and grade 3 anaplastic gliomas (AGs) (Arm 3). The study was started in October 2013, and the data were locked on September 29, 2017.

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Polyfluoro-alkyl substances (PFAS) are widely distributed environmental contaminants linked to human toxicity and developmental delays, especially low birthweight (LBW). In this study, Human Umbilical Vein Endothelial Cells (HUVECs) were exposed to the PFAS perfluorooctanesulfonic acid (PFOS). After 48-hours, their proliferation, and differential gene expression were assessed.

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Unlabelled: Climate and atmospheric deposition interact with watershed properties to drive dissolved organic carbon (DOC) concentrations in lakes. Because drivers of DOC concentration are inter-related and interact, it is challenging to assign a single dominant driver to changes in lake DOC concentration across spatiotemporal scales. Leveraging forty years of data across sixteen lakes, we used structural equation modeling to show that the impact of climate, as moderated by watershed characteristics, has become more dominant in recent decades, superseding the influence of sulfate deposition that was observed in the 1980s.

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Introduction: Little is known about the factors associated with care-resistant behavior in community-dwelling persons living with dementia.

Methods: Regression modeling was performed on 41,143 responses to a standardized questionnaire from the National Alzheimer's Coordinating Center's Uniform Data Set.

Results: In the fully adjusted mixed-effects regression model, collinearity was low, with no variance inflation factor above 1.

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Knowledge about seafloor depth, or bathymetry, is crucial for various marine activities, including scientific research, offshore industry, safety of navigation, and ocean exploration. Mapping the central Arctic Ocean is challenging due to the presence of perennial sea ice, which limits data collection to icebreakers, submarines, and drifting ice stations. The International Bathymetric Chart of the Arctic Ocean (IBCAO) was initiated in 1997 with the goal of updating the Arctic Ocean bathymetric portrayal.

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Background: While efforts to improve the educational preparedness of nurses to care for lesbian, gay, bisexual, transgender, and queer (LGBTQ +) people have increased, the influence of role-modeled behaviors by healthcare professionals working with nursing students and recent graduates is not well understood. The purpose of this study is to describe the role-modeled behaviors of healthcare professionals observed by nursing students and recent graduates caring for LGBTQ + patients in clinical settings.

Methods: A cross-sectional, online survey was conducted.

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High-Risk Opioid Prescribing and Nurse Practitioner Independence.

JAMA Health Forum

December 2024

Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts.

Importance: Concerns around excessive opioid prescribing have been used to argue against the expansion of the scope of practice of nurse practitioners (NPs), but the association of NP practice independence with high-risk opioid prescribing is not well understood.

Objective: To assess whether the rates of high-risk opioid prescribing changed in association with NP independence legislation.

Design, Setting, And Participants: This difference-in-differences analysis compared rates of high-risk opioid prescribing in 6 states over 2 years following the adoption of NP independence compared with 10 neighboring nonadopting states from January 2012 to December 2021.

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