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https://www.readbyqxmd.com/read/28936677/prokaryotic-assemblages-in-the-maritime-antarctic-lake-limnopolar-byers-peninsula-south-shetland-islands
#1
M Papale, C Rizzo, J A Villescusa, C Rochera, A Camacho, L Michaud, A Lo Giudice
The potentially metabolically active components within the prokaryotic assemblages inhabiting the Antarctic Lake Limnopolar (Byers Peninsula, Maritime Antarctica) were investigated by a polyphasic approach which included culture-dependent and culture-independent methods (based on RNA molecules). Results support previous observations on the Proteobacteria and Bacteroidetes dominance, followed by Actinobacteria, in Antarctic lakes. In particular, Alpha-, Betaproteobacteria and Bacteroidetes were mainly detected by CARD-FISH and cDNA cloning, whereas Gammaproteobacteria and Actinobacteria dominated within the cultivable fraction...
September 21, 2017: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/28936645/an-introduction-to-male-germline-development
#2
Hannes Vogler, Ueli Grossniklaus, Afif Hedhly
In this introductory chapter, we describe male germline development in plants taking Arabidopsis thaliana as a reference species. We first describe the transition from sporophytic to germline development, then microsporogenesis including meiosis, followed by male gametophyte development prior to pollination, and finally the progamic phase culminating in double fertilization, which leads to the formation of the embryo and the endosperm. For detailed information on some of these processes or on the molecular underpinning of certain fate transitions, we refer the reader to recent reviews...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28931657/neutrophil-transfer-of-mir-223-to-lung-epithelial-cells-dampens-acute-lung-injury-in-mice
#3
Viola Neudecker, Kelley S Brodsky, Eric T Clambey, Eric P Schmidt, Thomas A Packard, Bennett Davenport, Theodore J Standiford, Tingting Weng, Ashley A Fletcher, Lea Barthel, Joanne C Masterson, Glenn T Furuta, Chunyan Cai, Michael R Blackburn, Adit A Ginde, Michael W Graner, William J Janssen, Rachel L Zemans, Christopher M Evans, Ellen L Burnham, Dirk Homann, Marc Moss, Simone Kreth, Kai Zacharowski, Peter M Henson, Holger K Eltzschig
Intercellular transfer of microRNAs can mediate communication between critical effector cells. We hypothesized that transfer of neutrophil-derived microRNAs to pulmonary epithelial cells could alter mucosal gene expression during acute lung injury. Pulmonary-epithelial microRNA profiling during coculture of alveolar epithelial cells with polymorphonuclear neutrophils (PMNs) revealed a selective increase in lung epithelial cell expression of microRNA-223 (miR-223). Analysis of PMN-derived supernatants showed activation-dependent release of miR-223 and subsequent transfer to alveolar epithelial cells during coculture in vitro or after ventilator-induced acute lung injury in mice...
September 20, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28930696/impact-of-a-newly-formed-periglacial-environment-and-other-factors-on-fresh-water-chemistry-at-the-western-shore-of-admiralty-bay-in-the-summer-of-2016-king-george-island-maritime-antarctica
#4
Małgorzata Szopińska, Danuta Szumińska, Robert Józef Bialik, Stanisław Chmiel, Joanna Plenzler, Żaneta Polkowska
This study provides a comprehensive analysis of the inorganic chemistry of flowing water at the western shore of Admiralty Bay. In the water samples, ions, and major and trace metals (and B) were detected and quantified. Additionally, the parameters of pH, specific electrolytic conductivity (SEC25) and total organic carbon (TOC) were determined. Moreover, multivariate data set was created and Principal Component Analysis (PCA) was performed. Generally, the water has low total content of the measured mineral constituents <100mgL(-1)...
September 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28930196/socio-demographic-and-lifestyle-factors-predict-5-year-changes-in-adiposity-among-a-group-of-black-south-african-adults
#5
Cornelie Nienaber-Rousseau, Olusola F Sotunde, Patricia O Ukegbu, P Hermanus Myburgh, Hattie H Wright, Lize Havemann-Nel, Sarah J Moss, Iolanthé M Kruger, H Salomé Kruger
The rising prevalence of obesity and excessive adiposity are global public health concerns. Understanding determinants of changes in adiposity over time is critical for informing effective evidence-based prevention or treatment. However, limited information is available to achieve this objective. Cultural, demographic, environmental, and behavioral factors including socio-economic status (SES) likely account for obesity development. To this end, we related these variables to anthropometric measures in 1058 black adult Tswana-speaking South Africans who were HIV negative in a prospective study over five years...
September 20, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28923752/anthropogenic-and-geogenic-mass-input-of-trace-elements-to-moss-and-natural-surface-soil-in-norway
#6
Erik R Christensen, Eiliv Steinnes, Ola Anfin Eggen
Data sets for concentrations of up to 22 elements including Pb, Cd, Ag, As, and Hg and several rare earth elements (REEs) in moss and surface soil from all over mainland Norway are analyzed by positive matrix factorization (PMF) and principal component analysis (PCA) with centered log-ratio transformation. Moss and soil samples collected in 2010 and 2005, respectively, show both a distinct long-range atmospheric transport PMF factor including a dominant Pb loading along with smaller loadings of Mo, Cd, Sb, and As, and a geogenic factor dominated by Ce, La, and Y...
September 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28906267/evidence-based-guidelines-for-interface-design-for-data-entry-in-electronic-health-records
#7
Bryan A Wilbanks, Jacqueline Moss
Electronic health records use a variety of data entry methods that are often customized to clinician needs. Data entry interfaces must be appropriately designed to maximize benefits and minimize unintended consequences. There was relatively little evidence in the literature to guide the selection of specific data entry methods according to the type of data documented. This literature review summarizes existing data entry design recommendations to guide data entry interface design. Structured data entry uses predefined charting elements to limit acceptable data entry to standard coded data and improve completeness and data reuse at the expense of correctness...
September 12, 2017: Computers, Informatics, Nursing: CIN
https://www.readbyqxmd.com/read/28901946/design-of-semg-assembly-to-detect-external-anal-sphincter-activity-a-proof-of-concept
#8
Arsam Shiraz, Brian Leaker, Charles Alexander Mosse, Eskinder Solomon, Michael Craggs, Andreas Demosthenous
Conditional trans-rectal stimulation of the pudendal nerve could provide a viable solution to treat hyperreflexive bladder in spinal cord injury. A set threshold of the amplitude estimate of the external anal sphincter surface electromyography (sEMG) may be used as the trigger signal. The efficacy of such a device should be tested in a large scale clinical trial. As such a probe should remain in situ for several hours while patients attend to their daily routine, the recording electrodes should be designed to be large enough to maintain good contact while observing design constraints...
September 13, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28899957/electrocardiographic-findings-of-fascicular-ventricular-tachycardia-versus-supraventricular-tachycardia-with-aberrancy-why-the-difference
#9
EDITORIAL
Joshua D Moss, Melvin M Scheinman
No abstract text is available yet for this article.
September 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28899505/an-alkaloid-extract-obtained-from-phlegmariurus-saururus-induces-neuroprotection-after-status-epilepticus
#10
Víctor Danelon, Laura Montroull, Mariana Vallejo, José Cabrera, Alicia Agnese, María Gabriela Ortega, Daniel Mascó
BACKGROUND: The brain is exposed to many excitotoxic insults that can lead to neuronal damage. Among these, Epilepsy is a neurological disease that affects a large percentage of world population and is commonly associated with cognitive disorders and excitotoxic neuronal death. Most experimental strategies are focused on preventing Status Epilepticus (SE), but once it has already occurred, the key question is whether it is possible to save neurons. PURPOSE: The aim of this study was to determine if a purified alkaloid extract (AE) obtained from Phlegmariurus saururus, a genus of Lycophyte plants (sometimes known as firmossesor fir club mosses) could induce neuroprotection following SE...
October 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28899152/me-here-you-there-now-what-commentary-on-kite-morris-wilson-and-kattlove
#11
Donald Moss
No abstract text is available yet for this article.
December 2016: Journal of the American Psychoanalytic Association
https://www.readbyqxmd.com/read/28894198/functional-modulation-of-lhcsr1-protein-from-physcomitrella-patens-by-zeaxanthin-binding-and-low-ph
#12
Alberta Pinnola, Matteo Ballottari, Ilaria Bargigia, Marcelo Alcocer, Cosimo D'Andrea, Giulio Cerullo, Roberto Bassi
Light harvesting for oxygenic photosynthesis is regulated to prevent the formation of harmful photoproducts by activation of photoprotective mechanisms safely dissipating the energy absorbed in excess. Lumen acidification is the trigger for the formation of quenching states in pigment binding complexes. With the aim to uncover the photoprotective functional states responsible for excess energy dissipation in green algae and mosses, we compared the fluorescence dynamic properties of the light-harvesting complex stress-related (LHCSR1) protein, which is essential for fast and reversible regulation of light use efficiency in lower plants, as compared to the major LHCII antenna protein, which mainly fulfills light harvesting function...
September 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28893840/the-monoplastidic-bottleneck-in-algae-and-plant-evolution
#13
REVIEW
Jan de Vries, Sven B Gould
Plastids in plants and algae evolved from the endosymbiotic integration of a cyanobacterium by a heterotrophic eukaryote. New plastids can only emerge through fission; thus, the synchronization of bacterial division with the cell cycle of the eukaryotic host was vital to the origin of phototrophic eukaryotes. Most of the sampled algae house a single plastid per cell and basal-branching relatives of polyplastidic lineages are all monoplastidic, as are some non-vascular plants during certain stages of their life cycle...
September 11, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28892635/ultrafast-silicon-photonics-with-visible-to-mid-infrared-pumping-of-silicon-nanocrystals
#14
Benjamin T Diroll, Katelyn S Schramke, Peijun Guo, Uwe R Kortshagen, Richard D Schaller
Dynamic optical control of infrared (IR) transparency and refractive index is achieved using boron-doped silicon nanocrystals excited with mid-IR optical pulses. Unlike previous silicon-based optical switches, large changes in transmittance are achieved without a fabricated structure by exploiting strong light coupling of the localized surface plasmon resonance (LSPR) produced from free holes of p-type silicon nanocrystals. The choice of optical excitation wavelength allows for selectivity between hole heating and carrier generation through intraband or interband photoexcitation, respectively...
September 18, 2017: Nano Letters
https://www.readbyqxmd.com/read/28892172/evolutionary-conservation-of-structure-and-function-of-the-uvr8-photoreceptor-from-the-liverwort-marchantia-polymorpha-and-the-moss-physcomitrella-patens
#15
Gonzalo Soriano, Catherine Cloix, Monika Heilmann, Encarnación Núñez-Olivera, Javier Martínez-Abaigar, Gareth I Jenkins
The ultraviolet-B (UV-B) photoreceptor UV RESISTANCE LOCUS 8 (UVR8) mediates photomorphogenic responses to UV-B in Arabidopsis through differential gene expression, but little is known about UVR8 in other species. Bryophyte lineages were the earliest diverging embryophytes, thus being the first plants facing the UV-B regime typical of land. We therefore examined whether liverwort and moss species have functional UVR8 proteins and whether they are regulated similarly to Arabidopsis UVR8. We examined the expression, dimer/monomer status, cellular localisation and function of Marchantia polymorpha and Physcomitrella patens UVR8 in experiments with bryophyte tissue and expression of green fluorescent protein (GFP)-UVR8 fusions in Nicotiana leaves and transgenic Arabidopsis...
September 11, 2017: New Phytologist
https://www.readbyqxmd.com/read/28891328/an-illness-specific-version-of-the-revised-illness-perception-questionnaire-in-patients-with-atrial-fibrillation-af-ipq-r-unpacking-beliefs-about-treatment-control-personal-control-and-symptom-triggers
#16
Elaina C Taylor, Mark O'Neill, Lyndsay D Hughes, Rona Moss-Morris
OBJECTIVE: This study modified the Revised Illness Perception Questionnaire (IPQ-R) in patients with persistent atrial fibrillation (AF). DESIGN: Qualitative interviews and think-aloud techniques informed modification of the IPQ-R to be specific to AF patients. Confirmatory Factor Analysis (CFA) (n = 198) examined the validity of the modified IPQ-R (AF-IPQ-R). Exploratory factor analysis (EFA) examined the new AF-triggers scale. Construct validity examined associations between the AF-IPQ-R, quality of life (QoL) and beliefs about medicines...
September 11, 2017: Psychology & Health
https://www.readbyqxmd.com/read/28889797/an-experimental-study-of-executive-function-and-social-impairment-in-cornelia-de-lange-syndrome
#17
Lisa Nelson, Hayley Crawford, Donna Reid, Joanna Moss, Chris Oliver
BACKGROUND: Extreme shyness and social anxiety is reported to be characteristic of adolescents and adults with Cornelia de Lange syndrome (CdLS); however, the nature of these characteristics is not well documented. In this study, we develop and apply an experimental assessment of social anxiety in a group of adolescents and adults with CdLS to determine the nature of the social difficulties and whether they are related to impairments in executive functioning. METHODS: A familiar and unfamiliar examiner separately engaged in socially demanding tasks comprising three experimental conditions with a group of individuals with CdLS (n = 25; % male = 44; mean age = 22...
September 11, 2017: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/28888823/comparing-percentages-and-ranks-of-adolescent-weight-related-outcomes-among-u-s-states-implications-for-intervention-development
#18
Jennifer L Moss, Benmei Liu, Li Zhu
Understanding statistical differences in states' percentages and ranks of adolescents meeting health behavior guidelines can guide policymaking. Data came from 531,777 adolescents (grades 9-12) who completed the Youth Risk Behavior Surveillance System survey in 2011, 2013, or 2015. We measured the percentage of adolescents in each state that met guidelines for physical activity, fruit and vegetable (F&V) consumption, and healthy weight status. Then we ranked states and calculated the ranks' 95% CI's using a Monte Carlo method with 100,000 simulations...
September 6, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/28888266/new-york-heart-association-class-and-the-survival-benefit-from-primary-prevention-implantable-cardioverter-defibrillators-a-pooled-analysis-of-4-randomized-controlled-trials
#19
REVIEW
Daniel J Friedman, Sana M Al-Khatib, Emily P Zeitler, JooYoon Han, Gust H Bardy, Jeanne E Poole, J Thomas Bigger, Alfred E Buxton, Arthur J Moss, Kerry L Lee, Richard Steinman, Paul Dorian, Riccardo Cappato, Alan H Kadish, Peter J Kudenchuk, Daniel B Mark, Lurdes Y T Inoue, Gillian D Sanders
BACKGROUND: Primary prevention implantable cardioverter defibrillator (ICD) reduce all-cause mortality by reducing sudden cardiac death. There are conflicting data regarding whether patients with more advanced heart failure derive ICD benefit owing to the competing risk of nonsudden death. METHODS: We performed a patient-level meta-analysis of New York Heart Association (NYHA) class II/III heart failure patients (left ventricular ejection fraction ≤35%) from 4 primary prevention ICD trials (MADIT-I, MADIT-II, DEFINITE, SCD-HeFT)...
September 2017: American Heart Journal
https://www.readbyqxmd.com/read/28887087/a-systematic-study-of-the-sensitivity-of-partial-volume-correction-methods-for-the-quantification-of-perfusion-from-pseudo-continuous-arterial-spin-labeling-mri
#20
Moss Y Zhao, Melvin Mezue, Andrew R Segerdahl, Thomas W Okell, Irene Tracey, Yingyi Xiao, Michael A Chappell
Arterial spin labeling (ASL) MRI is a non-invasive technique for the quantification of cerebral perfusion, and pseudo-continuous arterial spin labeling (PCASL) has been recommended as the standard implementation by a recent consensus of the community. Due to the low spatial resolution of ASL images, perfusion quantification is biased by partial volume effects. Consequently, several partial volume correction (PVEc) methods have been developed to reduce the bias in gray matter (GM) perfusion quantification. The efficacy of these methods relies on both the quality of the ASL data and the accuracy of partial volume estimates...
September 5, 2017: NeuroImage
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