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https://www.readbyqxmd.com/read/28930633/controlled-orientation-of-droplets-in-ellipsoid-filled-polymeric-emulsions-by-particle-parameters-and-flow-conditions
#1
Chaoying Mao, Yajiang Huang, Junlong Yang, Miqiu Kong, Yuan Wang, Qi Yang, Guangxian Li
The effect of particle parameters (aspect ratio, AR, and concentration) and flow conditions (gap spacing and shear rate) on droplet orientation deformation behavior in polystyrene (PS) particle-filled binary polymeric emulsions is investigated by using rheo-optical technique and confocal microscopy. Interesting vorticity orientation behavior is achieved by tailoring experimental conditions to gain rigid anisotropic droplets during slow confined shear flow. PS ellipsoids with high AR are found to reside both at the fluid interface in a monolayer side-on state and inside droplets, leading to the formation of rigid anisotropic droplets due to interfacial/bulk jamming effect at appropriate particle concentrations...
September 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28930435/new-triplet-sensitization-routes-for-photon-upconversion-thermally-activated-delayed-fluorescence-molecules-inorganic-nanocrystals-and-singlet-to-triplet-absorption
#2
Nobuhiro Yanai, Nobuo Kimizuka
Photon upconversion based on triplet-triplet annihilation (TTA-UC) has attracted much interest because of its possible applications to renewable energy production and biological fields. In particular, the UC of near-infrared (NIR) light to visible (vis) light is imperative to overcome the Shockley-Queisser limit of single-junction photovoltaic cells, and the efficiency of photocatalytic hydrogen production from water can also be improved with the aid of vis-to-ultraviolet (UV) UC. However, both processes have met limitations in the wavelength range, efficiency, and sensitivity for weak incident light...
September 20, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28930362/rapid-development-of-specialty-population-registries-and-quality-measures-from-electronic-health-record-data-an-agile-framework
#3
Vaishnavi Kannan, Jason S Fish, Jacqueline M Mutz, Angela R Carrington, Ki Lai, Lisa S Davis, Josh E Youngblood, Mark R Rauschuber, Kathryn A Flores, Evan J Sara, Deepa G Bhat, DuWayne L Willett
BACKGROUND: Creation of a new electronic health record (EHR)-based registry often can be a "one-off" complex endeavor: first developing new EHR data collection and clinical decision support tools, followed by developing registry-specific data extractions from the EHR for analysis. Each development phase typically has its own long development and testing time, leading to a prolonged overall cycle time for delivering one functioning registry with companion reporting into production. The next registry request then starts from scratch...
June 14, 2017: Methods of Information in Medicine
https://www.readbyqxmd.com/read/28929866/culture-and-food-practices-of-african-american-women-with-type-2-diabetes
#4
Lisa L Sumlin, Sharon A Brown
Purpose The goals of this descriptive ethnographic study were to (1) describe the day-to-day selection, preparation, and consumption of food among African American women (AAW) with type 2 diabetes mellitus (T2DM); (2) identify their typical food selections and consumption practices when dining out at restaurants and at social gatherings (ie, church functions, holidays); (3) highlight the valued behaviors and beliefs that influence these women's food practices; and (4) determine how social interactions influence those food practices...
September 1, 2017: Diabetes Educator
https://www.readbyqxmd.com/read/28929850/the-emerging-health-leaders-network-experience-reflections-and-lessons-learned-from-a-grassroots-movement
#5
Emily Gruenwoldt, Adrienne Hagen Lyster
The Emerging Health Leaders (EHL) network was established in 2006 to enhance the leadership capacity of early careerists in the health sector in Canada. Ten years later, the development of the next generation of health leaders continues to be a focus for system leaders. Despite the rhetoric, financial investments in leadership development remain stagnant. This article describes the network's experience in supporting the professional development needs of aspiring leaders across Canada. Successes and challenges regarding the development of the network are discussed, as are the results from a recent benchmarking survey, which identify remaining gaps and priorities for aspiring young leaders...
May 2017: Healthcare Management Forum
https://www.readbyqxmd.com/read/28929301/urban-heart-detroit-a-tool-to-better-understand-and-address-health-equity-gaps-in-the-city
#6
R Mehdipanah, A J Schulz, B A Israel, C Gamboa, Z Rowe, M Khan, A Allen
The Urban Health Equity Assessment Response Tool (Urban HEART) combines statistical evidence and community knowledge to address urban health inequities. This paper describes the process of adopting and implementing this tool for Detroit, Michigan, the first city in the USA to use it. The six steps of Urban HEART were implemented by the Healthy Environments Partnership, a community-based participatory research partnership made up of community-based organizations, health service providers, and researchers based in academic institutions...
September 19, 2017: Journal of Urban Health: Bulletin of the New York Academy of Medicine
https://www.readbyqxmd.com/read/28928750/the-role-of-maternal-hiv-envelope-specific-antibodies-and-mother-to-child-transmission-risk
#7
REVIEW
Ayooluwa O Douglas, David R Martinez, Sallie R Permar
Despite the wide availability of antiretroviral therapy (ART) prophylaxis during pregnancy, >150,000 infants become infected through mother-to-child transmission (MTCT) of HIV worldwide. It is likely that additional intervention strategies, such as a maternal HIV vaccine, will be required to eliminate pediatric HIV infections. A deeper understanding of the fine specificity and function of maternal HIV envelope (Env)-specific responses that provide partial protection against MTCT will be critical to inform the design of immunologic strategies to curb the pediatric HIV epidemic...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28928669/nature-s-electric-potential-a-systematic-review-of-the-role-of-bioelectricity-in-wound-healing-and-regenerative-processes-in-animals-humans-and-plants
#8
REVIEW
Sheena E B Tyler
Natural endogenous voltage gradients not only predict and correlate with growth and development but also drive wound healing and regeneration processes. This review summarizes the existing literature for the nature, sources, and transmission of information-bearing bioelectric signals involved in controlling wound healing and regeneration in animals, humans, and plants. It emerges that some bioelectric characteristics occur ubiquitously in a range of animal and plant species. However, the limits of similarities are probed to give a realistic assessment of future areas to be explored...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28927129/deficiency-of-gap-junction-composed-of-connexin43-contributes-to-oxaliplatin-resistance-in-colon-cancer-cells
#9
Min Su, Qi Zhang
Although comprehensive strategies in the treatment of colorectal cancer have been developed for a number of years, the five-year survival rate of metastatic colon cancer remains less than 10%. Oxaliplatin, a commonly used chemotherapeutic agent for metastatic colon cancer, improves the response rate of patients and prolongs patients' progression-free survival. However, the generation of resistance limits the clinical application of oxaliplatin, and the mechanisms of this remain unclear. The present study mainly investigated the effect of the gap junction (GJ) composed of connexin43 (Cx43) on oxaliplatin cytotoxicity in colon cancer cells...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926685/nir-absorbing-metal-free-organic-porphyrin-and-phthalocyanine-dyes-for-panchromatic-dscs
#10
Phillip Brogdon, Hammad Cheema, Jared Heath Delcamp
Dye-sensitized solar cells (DSCs) are a promising source of renewable energy. However, power conversion efficiency (PCE) of devices has been limited largely by the difficulty of producing electricity using photons from the near-infrared (NIR) spectral region. Metal-free organic sensitizers frequently employ strong electron donating or withdrawing moieties to tune the optical band gap to allow the absorption of lower energy wavelengths in charge transfer systems while porphyrins and phthalocyanines use substituents to shift the Soret and Q bands toward lower energy absorption...
September 19, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28925527/one-gene-two-proteins-coordinated-production-of-a-copper-chaperone-by-differential-transcript-formation-and-translational-frameshifting-in-escherichia-coli
#11
Steffen Lorenz Drees, Birgit Klinkert, Stefan Helling, Dominik Fabian Beyer, Katrin Marcus, Franz Narberhaus, Mathias Lübben
Programmed ribosomal frameshifting (PRF) is a translational anomaly causing the ribosome to shift into an alternative reading frame. PRFs are common in viral genomes, using a single nucleotide sequence to code for two proteins in overlapping frames. In bacteria and eukaryota, PRFs are less frequent. We report on a PRF in the copper detoxification system of Escherichia coli where a metallochaperone is generated out of the first 69 amino acids and a C-terminal out-of-frame glycine of the gene copA. copA besides codes for the P1B -ATPase CopA, a membrane-integral protein and principal interaction target of the chaperone...
September 19, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28924327/direct-comparison-of-time-resolved-terahertz-spectroscopy-and-hall-van-der-pauw-methods-for-measurement-of-carrier-conductivity-and-mobility-in-bulk-semiconductors
#12
Brian G Alberding, W Robert Thurber, Edwin J Heilweil
Charge carrier conductivity and mobility for various semiconductor wafers and crystals were measured by ultrafast above bandgap, optically excited Time-Resolved Terahertz Spectroscopy (TRTS) and Hall Van der Pauw contact methods to directly compare these approaches and validate the use of the non-contact optical approach for future materials and in-situ device analyses. Undoped and doped silicon (Si) wafers with resistances varying over six orders of magnitude were selected as model systems since contact Hall measurements are reliably made on this material...
July 2017: Journal of the Optical Society of America. B, Optical Physics
https://www.readbyqxmd.com/read/28924176/low-carbon-renewable-natural-gas-production-from-coalbeds-and-implications-for-carbon-capture-and-storage
#13
Zaixing Huang, Christine Sednek, Michael A Urynowicz, Hongguang Guo, Qiurong Wang, Paul Fallgren, Song Jin, Yan Jin, Uche Igwe, Shengpin Li
Isotopic studies have shown that many of the world's coalbed natural gas plays are secondary biogenic in origin, suggesting a potential for gas regeneration through enhanced microbial activities. The generation of biogas through biostimulation and bioaugmentation is limited to the bioavailability of coal-derived compounds and is considered carbon positive. Here we show that plant-derived carbohydrates can be used as alternative substrates for gas generation by the indigenous coal seam microorganisms. The results suggest that coalbeds can act as natural geobioreactors to produce low carbon renewable natural gas, which can be considered carbon neutral, or perhaps even carbon negative depending on the amount of carbon sequestered within the coal...
September 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28924003/learning-the-high-dimensional-immunogenomic-features-that-predict-public-and-private-antibody-repertoires
#14
Victor Greiff, Cédric R Weber, Johannes Palme, Ulrich Bodenhofer, Enkelejda Miho, Ulrike Menzel, Sai T Reddy
Recent studies have revealed that immune repertoires contain a substantial fraction of public clones, which may be defined as Ab or TCR clonal sequences shared across individuals. It has remained unclear whether public clones possess predictable sequence features that differentiate them from private clones, which are believed to be generated largely stochastically. This knowledge gap represents a lack of insight into the shaping of immune repertoire diversity. Leveraging a machine learning approach capable of capturing the high-dimensional compositional information of each clonal sequence (defined by CDR3), we detected predictive public clone and private clone-specific immunogenomic differences concentrated in CDR3's N1-D-N2 region, which allowed the prediction of public and private status with 80% accuracy in humans and mice...
September 18, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28922139/3d-printed-multiplexed-electrospinning-sources-for-large-scale-production-of-aligned-nanofiber-mats-with-small-diameter-spread
#15
Erika García-López, Daniel Olvera-Trejo, Luis F Velásquez-García
We report the design, fabrication, and characterization of novel, low-cost, and modular miniaturized nanofiber electrospinning sources for the scalable production of non-woven aligned nanofiber mats with low diameter variation. The devices are monolithic arrays of electrospinning emitters made via stereolithography; the emitters are arranged so each element has an independent line of sight to a rotating collector surface. Linear and zigzag emitter packing were evaluated using a PEO solution with the aim of maximizing the throughput of nanofibers with the smallest diameter and narrowest distribution...
September 18, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28921904/developing-a-dna-barcode-library-for-perciform-fishes-in-the-south-china-sea-species-identification-accuracy-and-cryptic-diversity
#16
Gang Hou, Wei-Tao Chen, Huo-Sheng Lu, Fei Cheng, Song-Guang Xie
DNA barcodes were studied for 1,353 specimens representing 272 morphological species belonging to 149 genera and 55 families of Perciformes from the South China Sea (SCS). The average Kimura 2-parameter (K2P) distances within species, genera, and families were 0.31%, 8.71%, and 14.52%, respectively. A Neighbor-joining (NJ) tree, Bayesian inference (BI) and maximum-likelihood (ML) trees and Automatic Barcode Gap Discovery (ABGD) revealed 260, 253 and 259 single-species-representing clusters, respectively. Barcoding Gap Analysis (BGA) demonstrated that barcode gaps were present for 178 of 187 species analysed with multiple specimens (95...
September 15, 2017: Molecular Ecology Resources
https://www.readbyqxmd.com/read/28921829/vegetation-demographics-in-earth-system-models-a-review-of-progress-and-priorities
#17
Rosie A Fisher, Charles D Koven, William R L Anderegg, Bradley O Christoffersen, Michael C Dietze, Caroline Farrior, Jennifer A Holm, George Hurtt, Ryan G Knox, Peter J Lawrence, Jeremy W Lichststein, Marcos Longo, Ashley M Matheny, David Medvigy, Helene C Muller-Landau, Thomas L Powell, Shawn P Serbin, Hisashi Sato, Jacquelyn Shuman, Benjamin Smith, Anna T Trugman, Toni Viskari, Hans Verbeeck, Ensheng Weng, Chonggang Xu, Xiangtao Xu, Tao Zhang, Paul Moorcroft
Numerous current efforts seek to improve the representation of ecosystem ecology and vegetation demographic processes within Earth System Models (ESMs). These developments are widely viewed as an important step in developing greater realism in predictions of future ecosystem states and fluxes. Increased realism, however, leads to increased model complexity, with new features raising a suite of ecological questions that require empirical constraints. Here, we review the developments that permit the representation of plant demographics in ESMs, and identify issues raised by these developments that highlight important gaps in ecological understanding...
September 18, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28919864/%C3%AE-subunits-control-the-effects-of-human-kv4-3-potassium-channel-phosphorylation
#18
Geoffrey W Abbott
The transient outward K(+) current, Ito, activates early in the cardiac myocyte action potential, to begin repolarization. Human Ito is generated primarily by two Kv4.3 potassium channel α subunit splice variants (Kv4.3L and Kv4.3S) that diverge only by a C-terminal, membrane-proximal, 19-residue stretch unique to Kv4.3L. Protein kinase C (PKC) phosphorylation of threonine 504 within the Kv4.3L-specific 19-residues mediates α-adrenergic inhibition of Ito in human heart. Kv4.3 is regulated in human heart by various β subunits, including cytosolic KChIP2b and transmembrane KCNEs, yet their impact on the functional effects of human Kv4...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28919752/zinc-oxide-nanoparticles-induce-apoptosis-and-autophagy-in-human-ovarian-cancer-cells
#19
Ding-Ping Bai, Xi-Feng Zhang, Guo-Liang Zhang, Yi-Fan Huang, Sangiliyandi Gurunathan
BACKGROUND: Zinc oxide nanoparticles (ZnO NPs) are frequently used in industrial products such as paint, surface coating, and cosmetics, and recently, they have been explored in biologic and biomedical applications. Therefore, this study was undertaken to investigate the effect of ZnO NPs on cytotoxicity, apoptosis, and autophagy in human ovarian cancer cells (SKOV3). METHODS: ZnO NPs with a crystalline size of 20 nm were characterized with various analytical techniques, including ultraviolet-visible spectroscopy, X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, and atomic force microscopy...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28919292/treatment-patterns-health-care-resource-utilization-and-spending-in-medicaid-beneficiaries-initiating-second-generation-long-acting-injectable-agents-versus-oral-atypical-antipsychotics
#20
Dominic Pilon, Neeta Tandon, Marie-Hélène Lafeuille, Rhiannon Kamstra, Bruno Emond, Patrick Lefebvre, Kruti Joshi
PURPOSE: Second-generation long-acting injectable therapies (SGA-LAIs) may reduce health care resource utilization (HRU) and health care costs compared with daily oral atypical antipsychotics (OAAs) in patients with schizophrenia due to reduced dosing frequency, delivery/monitoring by a health care provider, and improved adherence. The aim of the present study was to compare treatment patterns, HRU, and Medicaid spending in patients with schizophrenia initiated on SGA-LAIs (overall and according to agent) versus OAAs...
September 14, 2017: Clinical Therapeutics
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