Browsing Open Access by Title
Now showing items 290-309 of 866
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Esophageal perforation secondary to malignant gastric outlet obstruction: a case report
(2019-02-19)Background Esophageal perforation is a rare presenting sign of gastric cancer. To date, only nine case reports of this phenomenon have been previously published. Case presentation Esophageal perforation was diagnosed ... -
Essential role of proteasomes in maintaining self-renewal in neural progenitor cells
(2016-01-25)Protein turnover and homeostasis are regulated by the proteasomal system, which is critical for cell function and viability. Pluripotency of stem cells also relies on normal proteasomal activity that mitigates senescent ... -
Establishment of the Coast Range ophiolite microbial observatory (CROMO): Drilling objectives and preliminary outcomes
(2013-11-05)Abstract. This project aimed to establish a subsurface microbial observatory in ultramafic rocks, by drilling into an actively serpentinizing peridotite body, characterizing cored rocks, and outfitting the boreholes for a ... -
Estimating coastal lagoon tidal flooding and repletion with multidate ASTER thermal imagery
(2012-10-18)Coastal lagoons mix inflowing freshwater and tidal marine waters in complex spatial patterns. This project sought to detect and measure temperature and spatial variability of flood tides for a constricted coastal lagoon ... -
Estimating internal consistency using Bayesian methods
(2011)Bayesian internal consistency and its Bayesian credible interval (BCI) are developed and Bayesian internal consistency and its percentile and normal theory based BCIs were investigated in a simulation study. Results indicate ... -
Estrogen Regulates the Satellite Cell Compartment in Females
(2019-07-09)Skeletal muscle mass, strength, and regenerative capacity decline with age, with many measures showing a greater deterioration in females around the time estrogen levels decrease at menopause. Here, we show that estrogen ... -
Ethnic differences in DNA methyltransferases expression in patients with systemic lupus erythematosus
(2013-10-09)Systemic lupus erythematous (SLE) is a systemic autoimmune inflammatory disease with both genetic and epigenetic etiologies. Evidence suggests that deregulation of specific genes through epigenetic mechanisms may be a ... -
Evaluating Combinations of Sentinel-2 Data and Machine-Learning Algorithms for Mangrove Mapping in West Africa
(2019-12-06)Creating a national baseline for natural resources, such as mangrove forests, and monitoring them regularly often requires a consistent and robust methodology. With freely available satellite data archives and cloud computing ... -
Evaluating Multipulse Integration as a Neural-Health Correlate in Human Cochlear-Implant Users: Relationship to Psychometric Functions for Detection
(2017-01)In electrical hearing, multipulse integration (MPI) describes the rate at which detection threshold decreases with increasing stimulation rate in a fixed-duration pulse train. In human subjects, MPI has been shown to be ... -
Evaluation of Methicillin-Resistant Staphylococcus aureus Carriage and High Livestock Production Areas in North Carolina through Active Case Finding at a Tertiary Care Hospital
(2019-09-14): Recent reports from the Netherlands document the emergence of novel multilocus sequence typing (MLST) types (e.g., ST-398) of methicillin-resistant Staphylococcus aureus (MRSA) in livestock, particularly swine. In ... -
Evaluation of Social Media Use by Emergency Medicine Residents and Faculty
(2015-09)Introduction Clinicians and residency programs are increasing their use of social media (SM) websites for educational and promotional uses, yet little is known about the use of these sites by residents and faculty. The ... -
Evidence for acquisition of virulence effectors in pathogenic chytrids
(2011-07-08)Background The decline in amphibian populations across the world is frequently linked to the infection of the chytrid fungus Batrachochytrium dendrobatidis (Bd). This is particularly perplexing because Bd was only recently ... -
The evolution of land plants: A perspective from horizontal gene transfer
(2014-12-04)Recent studies suggest that horizontal gene transfer (HGT) played a significant role in the evolution of eukaryotic lineages. We here review the mechanisms of HGT in plants and the importance of HGT in land plant evolution. ... -
The evolution of photosynthesis in chromist algae through serial endosymbioses
(2014-12-10)Chromist algae include diverse photosynthetic organisms of great ecological and social importance. Despite vigorous research efforts, a clear understanding of how various chromists acquired photosynthetic organelles has ... -
Evolution of plant nucleotide-sugar interconversion enzymes
(2011-11-18)Nucleotide-diphospho-sugars (NDP-sugars) are the building blocks of diverse polysaccharides and glycoconjugates in all organisms. In plants, 11 families of NDP-sugar interconversion enzymes (NSEs) have been identified, ... -
Evolutionary Dynamics of Floral Homeotic Transcription Factor Protein–Protein Interactions
(2016-02-22)Protein–protein interactions (PPIs) have widely acknowledged roles in the regulation of development, but few studies have addressed the timing and mechanism of shifting PPIs over evolutionary history. The B-class MADS-box ... -
An evolutionary perspective on marine invasions
(2019-12-10)Species distributions are rapidly changing as human globalization increasingly moves organisms to novel environments. In marine systems, species introductions are the result of a number of anthropogenic mechanisms, notably ... -
Examining signals of trust in criminal markets online
(2016-09-14)This study examines the signals of trust in stolen data advertisements by analysing the structural and situational factors that influence the type of feedback sellers receive. Specifically, this article explores the factors ... -
Executive summary: "Mantle Frontier" workshop
(2011-03)The workshop on “Reaching the Mantle Frontier: Moho and Beyond” was held at the Broad Branch Road Campus of the Carnegie Institution of Washington on 9–11 September 2010. The workshop attracted seventy-four scientists and ... -
Exercise-heat stress with and without water replacement alters brain structures and impairs visuomotor performance
(2018-06-26)Effects of exercise‐heat stress with and without water replacement on brain structure and visuomotor performance were examined. Thirteen healthy adults (23.6 ± 4.2 years) completed counterbalanced 150 min trials of ...