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https://www.readbyqxmd.com/read/28931087/microbial-analysis-of-zetaproteobacteria-and-co-colonizers-of-iron-mats-in-the-troll-wall-vent-field-arctic-mid-ocean-ridge
#1
Jan Vander Roost, Ingunn Hindenes Thorseth, Håkon Dahle
Over the last decade it has become increasingly clear that Zetaproteobacteria are widespread in hydrothermal systems and that they contribute to the biogeochemical cycling of iron in these environments. However, how chemical factors control the distribution of Zetaproteobacteria and their co-occurring taxa remains elusive. Here we analysed iron mats from the Troll Wall Vent Field (TWVF) located at the Arctic Mid-Ocean Ridge (AMOR) in the Norwegian-Greenland Sea. The samples were taken at increasing distances from high-temperature venting chimneys towards areas with ultraslow low-temperature venting, encompassing a large variety in geochemical settings...
2017: PloS One
https://www.readbyqxmd.com/read/28931056/heterogeneity-in-the-expression-and-subcellular-localization-of-polyol-monosaccharide-transporter-genes-in-lotus-japonicus
#2
Lu Tian, Leru Liu, Yehu Yin, Mingchao Huang, Yanbo Chen, Xinlan Xu, Pingzhi Wu, Meiru Li, Guojiang Wu, Huawu Jiang, Yaping Chen
Polyols can serve as a means for the translocation of carbon skeletons and energy between source and sink organs as well as being osmoprotective solutes and antioxidants which may be involved in the resistance of some plants to biotic and abiotic stresses. Polyol/Monosaccharide transporter (PLT) proteins previously identified in plants are involved in the loading of polyols into the phloem and are reported to be located in the plasma membrane. The functions of PLT proteins in leguminous plants are not yet clear...
2017: PloS One
https://www.readbyqxmd.com/read/28930717/inhibition-of-erythrocyte-cell-membrane-scrambling-by-asp3026
#3
Abdulla Al Mamun Bhuyan, Rosi Bissinger, Hang Cao, Florian Lang
BACKGROUND/AIMS: The anaplastic lymphoma kinase (ALK) inhibitor ASP3026 is in clinical development for the treatment of ALK expressing non-small cell lung carcinoma (NSCLC). ASP3026 is in part effective by inducing apoptosis of tumor cells. Erythrocytes lack mitochondria and nuclei, key organelles in the execution of apoptosis, but are nevertheless able to enter suicidal death or eryptosis, which is characterized by cell membrane scrambling with phosphatidylserine translocation to the cell surface and by cell shrinkage...
September 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28930673/pexrap-inhibits-prdm16-mediated-thermogenic-gene-expression
#4
Irfan J Lodhi, John M Dean, Anyuan He, Hongsuk Park, Min Tan, Chu Feng, Haowei Song, Fong-Fu Hsu, Clay F Semenkovich
How the nuclear receptor PPARγ regulates the development of two functionally distinct types of adipose tissue, brown and white fat, as well as the browning of white fat, remains unclear. Our previous studies suggest that PexRAP, a peroxisomal lipid synthetic enzyme, regulates PPARγ signaling and white adipogenesis. Here, we show that PexRAP is an inhibitor of brown adipocyte gene expression. PexRAP inactivation promoted adipocyte browning, increased energy expenditure, and decreased adiposity. Identification of PexRAP-interacting proteins suggests that PexRAP function extends beyond its role as a lipid synthetic enzyme...
September 19, 2017: Cell Reports
https://www.readbyqxmd.com/read/28930582/hypothesis-on-interactions-of-macromolecules-based-on-molecular-vibration-patterns-in-cells-and-tissues
#5
Werner Jaross
The molecular vibration patterns of structure-forming macromolecules in the living cell create very specific electromagnetic frequency patterns which might be used for information on spatial position in the three-dimensional structure as well as the chemical characteristics. Chemical change of a molecule results in a change of the vibration pattern and thus in a change of the emitted electromagnetic frequency pattern. These patterns have to be received by proteins responsible for the necessary interactions and functions...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28930321/a-new-insight-for-ohmic-contacts-to-mos2-by-tuning-mos2-affinity-energies-but-not-metal-work-functions
#6
Qian Wang, Bei Deng, Xingqiang Shi
Two-dimensional (2D) transition metal dichalcogenides (TMDCs) have recently attracted tremendous interest for fundamental studies and applications. High contact resistances between the metal electrodes and the 2D TMDCs, usually composed of a tunneling barrier (TB) and a Schottky barrier (SB), are the key bottleneck to the realization of high performance devices based on such systems. Here, from van der Waals density functional theory calculations, we demonstrate that strain can provide a feasible means to reduce the contact resistances between, for example, 2D semiconductor MoS2 and metal surfaces, in both strong and weak coupling regimes...
September 20, 2017: Physical Chemistry Chemical Physics: PCCP
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
#7
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/28930189/microstructural-investigation-of-heat-treated-ultra-high-performance-concrete-for-optimum-production
#8
Sung-Hoon Kang, Ji-Hyung Lee, Sung-Gul Hong, Juhyuk Moon
For optimum production of ultra-high performance concrete (UHPC), the material and microstructural properties of UHPC cured under various heat treatment (HT) conditions are studied. The effects of HT temperature and duration on the hydration reaction, microstructure, and mechanical properties of UHPC are investigated. Increasing HT temperature accelerates both cement hydration and pozzolanic reaction, but the latter is more significantly affected. This accelerated pozzolanic reaction in UHPC clearly enhances compressive strength...
September 20, 2017: Materials
https://www.readbyqxmd.com/read/28930186/the-effect-of-copper-addition-on-the-activity-and-stability-of-iron-based-co%C3%A2-hydrogenation-catalysts
#9
Matthew J Bradley, Ramagopal Ananth, Heather D Willauer, Jeffrey W Baldwin, Dennis R Hardy, Frederick W Williams
Iron-based CO₂ catalysts have shown promise as a viable route to the production of olefins from CO₂ and H₂ gas. However, these catalysts can suffer from low conversion and high methane selectivity, as well as being particularly vulnerable to water produced during the reaction. In an effort to improve both the activity and durability of iron-based catalysts on an alumina support, copper (10-30%) has been added to the catalyst matrix. In this paper, the effects of copper addition on the catalyst activity and morphology are examined...
September 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28930096/simulation-study-of-light-transport-in-laser-processed-lyso-ce-detectors-with-single-side-readout
#10
Lisa Blackberg, Georges El Fakhri, Hamid Sabet
A tightly focused pulsed laser beam can locally modify the crystal structure inside the bulk of a scintillator. The result is incorporation of so-called optical barriers with a refractive index different from that of the crystal bulk, that can be used to redirect the scintillation light and control the light spread in the detector. We here systematically study the scintillation light transport in detectors fabricated using the Laser Induced Optical Barrier technique, and objectively compare their potential performance characteristics with those of the two mainstream detector types: monolithic and mechanically pixelated arrays...
September 20, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28929948/moderately-high-protein-enteral-formula-improved-retinol-binding-protein-in-tube-fed-patients-a-multicentre-open-study
#11
Veeradej Pisprasert, Prapimporn Chattranukulchai Shantavasinkul, Sornwichate Rattanachaiwong, Tanarat Lepananon, Surat Komindr
BACKGROUND: Long-term inadequate dietary consumption may increase the possibility of malnutrition, morbidity and mortality. Enteral nutrition (EN) is a beneficial support that could help to maintain nutritional status and gut function. AIM: Our aim was to evaluate the effect of moderately high-protein enteral formula containing fibre on nutritional status, and its safety. METHOD: A total of 23 tube-feeding-dependent adult patients were included in this multicentre, open-label study...
September 2017: Nutrition and Health
https://www.readbyqxmd.com/read/28929883/managing-environmental-sustainability-in-a-healthcare-setting
#12
Karen Langstaff, Victoria Brzozowski
How does a hospital sustain its journey towards environmental sustainability? To date, most hospitals have embarked on some strategies for improving environmental performance, whether it's reducing energy or landfill waste. Environmental sustainability strategies, however, can often lose momentum or stagnate if not championed by someone whose full-time role is to assess, monitor, and bring new strategies to the table. In the face of ongoing budget deficits, it is increasingly difficult to get adequate support and buy-in for this type of role unless the leadership of the organization is committed to an environmental sustainability program...
March 2017: Healthcare Management Forum
https://www.readbyqxmd.com/read/28929738/plasmonic-effects-of-metallic-nanoparticles-on-enhancing-performance-of-perovskite-solar-cells
#13
Qi Luo, Chenxi Zhang, Xueshuang Deng, Hongbing Zhu, Zhiqiang Li, Zengbo Wang, Xiaohong Chen, Sumei Huang
We report the systematic design and formation of plasmonic perovskite solar cells (PSCs) by integrating Au@TiO2 core-shell nanoparticles (NPs) into porous TiO2 and/or perovskite semiconductor capping layers. The plasmonic effects in the formed PSCs are examined. The most efficient configuration is obtained by incorporating Au@TiO2 NPs into both the porous TiO2 and the perovskite capping layers, which increases the power conversion efficiency (PCE) from 12.59 % to 18.24 %, demonstrating over 44% enhancement, compared with the reference device without the metal NPs...
September 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28929590/enhancing-photocurrent-generation-in-photosynthetic-reaction-center-based-photoelectrochemical-cells-with-biomimetic-dna-antenna
#14
Anne-Marie Carey, Haojie Zhang, Minghui Liu, Daiana Sharaf, Natalie Akram, Hao Yan, Su Lin, Neal Woodbury, Dong-Kyun Seo
3 to 4 times higher performance of biohybrid photoelectrochemical cells with photosynthetic reaction centers (RC) has been achieved by using a DNA-based biomimetic antenna. Synthetic dyes Cy3 and Cy5 were chosen and strategically placed in the anntena in such a way that they can collect additional light energy in the visible region of the solar spectrum and transfer it to RC through Förster resonance energy transfer (FRET). The antenna, a DNA templated multiple dye system, is attached to each Rhodobacter sphaeroides RC near the primary donor, P, to facilitate the energy transfer process...
September 19, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28929456/the-relationship-between-co2-emission-energy-consumption-and-economic-growth-in-malaysia-a-three-way-linkage-approach
#15
Chindo Sulaiman, A S Abdul-Rahim
This study examines the three-way linkage relationships between CO2 emission, energy consumption and economic growth in Malaysia, covering the 1975-2015 period. An autoregressive distributed lag approach was employed to achieve the objective of the study and gauged by dynamic ordinary least squares. Additionally, vector error correction model, variance decompositions and impulse response functions were employed to further examine the relationship between the interest variables. The findings show that economic growth is neither influenced by energy consumption nor by CO2 emission...
September 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28929434/random-electromyostimulation-promotes-osteogenesis-and-the-mechanical-properties-of-rat-bones
#16
Shigeo M Tanaka, Yuma Yorozuya, Daisuke Takatsu
Exercise is often recommended as a promising non-pharmacologic countermeasure to prevent osteoporosis. However, elderly osteoporotic patients generally have physical fitness difficulties preventing them from performing effective and sustainable exercise. Electromyostimulation should be one effective modality for non-pharmacological prevention of osteoporosis without any voluntary physical movements. However, successful stimulation patterns remain controversial. As suggested by our previous in vitro studies, randomized timing of stimulation could be a candidate to maximize the osteogenic effect of electromyostimulation...
September 19, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28929354/analysis-of-influence-mechanism-of-energy-related-carbon-emissions-in-guangdong-evidence-from-regional-china-based-on-the-input-output-and-structural-decomposition-analysis
#17
Changjian Wang, Fei Wang, Xinlin Zhang, Haijun Deng
It is important to analyze the influence mechanism of energy-related carbon emissions from a regional perspective to effectively achieve reductions in energy consumption and carbon emissions in China. Based on the "energy-economy-carbon emissions" hybrid input-output analysis framework, this study conducted structural decomposition analysis (SDA) on carbon emissions influencing factors in Guangdong Province. Systems-based examination of direct and indirect drivers for regional emission is presented. (1) Direct effects analysis of influencing factors indicated that the main driving factors of increasing carbon emissions were economic and population growth...
September 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28929348/-comparative-analysis-of-light-sensitivity-depth-and-motion-perception-in-animals-and-humans
#18
REVIEW
F Schaeffel
BACKGROUND: This study examined how humans perform regarding light sensitivity, depth perception and motion vision in comparison to various animals. OBJECTIVE: The parameters that limit the performance of the visual system for these different functions were examined. METHODS: This study was based on literature studies (search in PubMed) and own results. RESULTS: Light sensitivity is limited by the brightness of the retinal image, which in turn is determined by the f‑number of the eye...
September 19, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28929343/a-comparison-of-isomaltulose-versus-maltodextrin-ingestion-during-soccer-specific-exercise
#19
Emma J Stevenson, Anthony Watson, Stephan Theis, Anja Holz, Liam D Harper, Mark Russell
PURPOSE: The performance and physiological effects of isomaltulose and maltodextrin consumed intermittently during prolonged soccer-specific exercise were investigated. METHODS: University soccer players (n = 22) performed 120 min of intermittent exercise while consuming 8% carbohydrate-electrolyte drinks (equivalent to ~ 20 g h(-1)) containing maltodextrin (Glycaemic Index: 90-100), isomaltulose (Glycaemic Index: 32) or a carbohydrate-energy-free placebo in a manner replicating the practices of soccer players (i...
September 19, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28929235/comparative-studies-on-structures-mechanical-properties-sensitivity-stabilities-and-detonation-performance-of-cl-20-tnt-cocrystal-and-composite-explosives-by-molecular-dynamics-simulation
#20
Gui-Yun Hang, Wen-Li Yu, Tao Wang, Jin-Tao Wang, Zhen Li
To investigate and compare the differences of structures and properties of CL-20/TNT cocrystal and composite explosives, the CL-20/TNT cocrystal and composite models were established. Molecular dynamics simulations were performed to investigate the structures, mechanical properties, sensitivity, stabilities and detonation performance of cocrystal and composite models with COMPASS force field in NPT ensemble. The lattice parameters, mechanical properties, binding energies, interaction energy of trigger bond, cohesive energy density and detonation parameters were determined and compared...
September 19, 2017: Journal of Molecular Modeling
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