324 results match your criteria: "Arizona State University. Tempe[Affiliation]"
American black bears are considered dependent on high-elevation forests or other montane habitats in the drylands of western North America. Black bear sign, including that of cubs, was observed throughout the summers of 2015, 2016, and 2018 along a perennial desert river in the Sonoran Desert of Arizona. We analyzed the contents of 21 black bear scats, collected from May to October of 2016 and 2018.
View Article and Find Full Text PDFEcol Evol
February 2022
Plant Biology and Conservation Chicago Botanic Garden Glencoe Illinois USA.
Protecting biodiversity requires an understanding of how anthropogenic changes impact the genetic processes associated with extinction risk. Studies of the genetic changes due to anthropogenic fragmentation have revealed conflicting results. This is likely due to the difficulty in isolating habitat loss and fragmentation, which can have opposing impacts on genetic parameters.
View Article and Find Full Text PDFUltramicroscopy
May 2022
Department of Physics, Arizona State University Tempe AZ 85287-1504, USA. Electronic address:
Bioeng Transl Med
January 2022
Chemical Engineering, School for the Engineering of Matter, Transport, and Energy Arizona State University Tempe Arizona USA.
The systemic pharmacotherapeutic efficacy of immunomodulatory drugs is heavily influenced by its route of administration. A few common routes for the systemic delivery of immunotherapeutics are intravenous, intraperitoneal, and intramuscular injections. However, the development of novel biomaterials, in adjunct to current progress in immunoengineering, is providing an exciting area of interest for oral drug delivery for systemic targeting.
View Article and Find Full Text PDFJ Community Psychol
July 2023
The Association of Black Psychologists, Inc., Fort Washington, Maryland, USA.
The coronavirus disease 2019 (COVID-19) pandemic has disproportionately impacted communities of color (CoC) amid increasing incidents of racial injustices and racism. In this article, we describe our culturalist methodologies for designing and implementing a multi-ethnic, interdisciplinary national needs assessment developed in partnership with CoC. Instead of a typical western-centric social science approach that typically ignores and perpetuates structural racism and settler colonialism, the research team implemented culturalist and community-partnered approaches that were further contextualized to the context of structural racism and settler colonialism.
View Article and Find Full Text PDFBackground Anxiety is linked to elevated risk of cardiometabolic disease onset, but the underlying mechanisms remain unclear. We examined the prospective association of 2 anxiety facets, neuroticism and worry, with cardiometabolic risk (CMR) trajectories for 4 decades. Methods and Results The sample comprised 1561 men from an ongoing adult male cohort.
View Article and Find Full Text PDFAnalyses of spontaneous mutation have shown that total genome-wide mutation rates are quantitatively similar for most prokaryotic organisms. However, this view is mainly based on organisms that grow best around neutral pH values (6.0-8.
View Article and Find Full Text PDFNanoscale
January 2022
School of Molecular Sciences, Arizona State University Tempe, AZ-85287, USA.
While MAX phases offer an exotic combination of ceramic and metallic properties, rendering them a unique class of materials, their applications remain virtually hypothetical. To overcome this shortcoming, a sol-gel based route is introduced that allows access to microwires in the range of tens of micrometers. Thorough structural characterization through XRD, SEM, EDS, and AFM demonstrates a successful synthesis of carbonaceous CrGaC wires, and advanced low temperature electronic transport measurements revealed resistivity behavior dominated by amorphous carbon.
View Article and Find Full Text PDFObjective: Although the Centers for Disease Control and Prevention eventually recommended wearing masks in public to slow the spread of the coronavirus, the practice has been unevenly distributed in the United States.
Methods: In this article, we model county-level infrequent mask usage as a function of three pillars of conservatism: (1) Republican political leadership (percentage of votes for Donald Trump in the 2016 presidential election), (2) conservative Protestantism (percentage evangelical Christian), and (3) right-wing media consumption (Google searches for ).
Results: Our analyses indicate that mask usage tends to be in counties with greater support for President Trump (in majority Trump counties), counties with more evangelical Christians, and areas with greater interest in .
Unlabelled: A one-day water sampling and flushing study was conducted for three schools in Maricopa County that experienced prolonged building inactivity due to the COVID-19 pandemic: an elementary school, middle school, and high school. Grab samples were taken at hand washing sinks, water fountains, and hose bibbs before and after flushing. Samples were analyzed for free chlorine, UVA254, copper, lead, total trihalomethanes, pH, conductivity, temperature, and species.
View Article and Find Full Text PDFThe COVID-19 pandemic prompted social distancing, workplace closures, and restrictions on mobility and trade that had cascading effects on economic activity, food prices, and employment in low- and middle-income countries. Using longitudinal data from Bangladesh, Kenya, and Nigeria covering a period from October 2020 to April 2021, the paper assesses whether knowledge of a person infected with COVID-19 is associated with food insecurity, job loss and business closures, and coping strategies to smooth consumption. The likelihood of households to experience food insecurity at the extensive and intensive margins increased among those who knew an infected person in Bangladesh and Kenya.
View Article and Find Full Text PDFChem Sci
October 2021
School of Molecular Sciences, Arizona State University Tempe Arizona 85287-1604 USA
Proton-coupled electron transfer (PCET) reactions depend on the hydrogen-bond connectivity between sites of proton donors and acceptors. The 2-(2'-hydroxyphenyl) benzimidazole (BIP) based systems, which mimic the natural Tyr-His190 pair of Photosystem II, have been useful for understanding the associated PCET process triggered by one-electron oxidation of the phenol. Substitution of the benzimidazole by an appropriate terminal proton acceptor (TPA) group allows for two-proton translocations.
View Article and Find Full Text PDFChem Sci
September 2021
Department of Chemistry, University of California Irvine CA USA
Multi-component bioluminescence imaging requires an expanded collection of luciferase-luciferin pairs that emit far-red or near-infrared light. Toward this end, we prepared a new class of luciferins based on a red-shifted coumarin scaffold. These probes (CouLuc-1s) were accessed in a two-step sequence direct modification of commercial dyes.
View Article and Find Full Text PDFBackground: Effective feedback is the cornerstone of competency-based education. The emergency department (ED) is a unique learning and feedback environment. Developing our understanding of emergency medicine (EM) residents' experiences around feedback will improve resident training and inform EM faculty development programs.
View Article and Find Full Text PDFJ Am Heart Assoc
September 2021
Department of Medicine Columbia University Irving Medical Center New York NY.
Background Sleep variability and social jetlag are associated with adverse cardiometabolic outcomes via circadian disruption. Variable eating patterns also lead to circadian disruption, but associations with cardiometabolic health are unknown. Methods and Results Women (n=115, mean age: 33±12 years) completed a 1-week food record using the Automated Self-Administered 24-Hour Dietary Assessment Tool at baseline and 1 year.
View Article and Find Full Text PDFThe purpose of this consensus document was to develop feasible, evidence-based occupational heat safety recommendations to protect the US workers that experience heat stress. Heat safety recommendations were created to protect worker health and to avoid productivity losses associated with occupational heat stress. Recommendations were tailored to be utilized by safety managers, industrial hygienists, and the employers who bear responsibility for implementing heat safety plans.
View Article and Find Full Text PDFThe mass die-off of Caribbean corals has transformed many of this region's reefs to macroalgal-dominated habitats since systematic monitoring began in the 1970s. Although attributed to a combination of local and global human stressors, the lack of long-term data on Caribbean reef coral communities has prevented a clear understanding of the causes and consequences of coral declines. We integrated paleoecological, historical, and modern survey data to track the occurrence of major coral species and life-history groups throughout the Caribbean from the prehuman period to the present.
View Article and Find Full Text PDFBiodivers Data J
June 2021
Arizona State University, Tempe, United States of America Arizona State University Tempe United States of America.
Domestic and captive animals and cultivated plants should be recognised as integral components in contemporary ecosystems. They interact with wild organisms through such mechanisms as hybridization, predation, herbivory, competition and disease transmission and, in many cases, define ecosystem properties. Nevertheless, it is widespread practice for data on domestic, captive and cultivated organisms to be excluded from biodiversity repositories, such as natural history collections.
View Article and Find Full Text PDFEcol Appl
October 2021
Center for Global Discovery and Conservation Science, Arizona State University. Tempe, Arizona, USA.
Between 2012 and 2016, California suffered one of the most severe droughts on record. During this period Sequoiadendron giganteum (giant sequoias) in the Sequoia and Kings Canyon National Parks (SEKI), California, USA experienced canopy water content (CWC) loss, unprecedented foliage senescence, and, in a few cases, death. We present an assessment of the vulnerability of giant sequoia populations to droughts that is currently lacking and needed for management.
View Article and Find Full Text PDFJ Am Heart Assoc
June 2021
Center for Pulmonary Vascular Biology and Medicine Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute Division of Cardiology Department of Medicine University of Pittsburgh School of Medicine PA.
Background Pulmonary hypertension (PH) is a deadly disease characterized by vascular stiffness and altered cellular metabolism. Current treatments focus on vasodilation and not other root causes of pathogenesis. Previously, it was demonstrated that glutamine metabolism, as catalyzed by GLS1 (glutaminase 1) activity, is mechanoactivated by matrix stiffening and the transcriptional coactivators YAP1 (yes-associated protein 1) and transcriptional coactivator with PDZ-binding motif (TAZ), resulting in pulmonary vascular proliferation and PH.
View Article and Find Full Text PDFUltramicroscopy
December 2021
Department of Physics, Arizona State University Tempe AZ 85287-1504, USA. Electronic address:
Since radiation damage is proportional to fluence, radiation damage limits the spatial resolution of biological structures determined by either X-ray or electron scattering. If only elastic scattering is used for structural information then electrons are superior as the ratio of elastic to inelastic scattering is higher than for X-rays. For soft X-rays in the water window below the O K edge photoabsorption contrast might be better than elastic scattering for distinguishing different biological materials.
View Article and Find Full Text PDFAs human-induced change eliminates natural habitats, it impacts genetic diversity and population connectivity for local biodiversity. The South African Cape Floristic Region (CFR) is the most diverse extratropical area for plant biodiversity, and much of its habitat is protected as a UNESCO World Heritage site. There has long been great interest in explaining the underlying factors driving this unique diversity, especially as much of the CFR is endangered by urbanization and other anthropogenic activity.
View Article and Find Full Text PDFThe application of evolutionary and ecological principles to cancer prevention and treatment, as well as recognizing cancer as a selection force in nature, has gained impetus over the last 50 years. Following the initial theoretical approaches that combined knowledge from interdisciplinary fields, it became clear that using the eco-evolutionary framework is of key importance to understand cancer. We are now at a pivotal point where accumulating evidence starts to steer the future directions of the discipline and allows us to underpin the key challenges that remain to be addressed.
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