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https://www.readbyqxmd.com/read/28742981/increased-precipitation-accelerates-soil-organic-matter-turnover-associated-with-microbial-community-composition-in-topsoil-of-the-alpine-grassland-on-the-eastern-tibetan-plateau
#1
Conghai Han, Zongli Wang, Guicai Si, Tianzhu Lei, Yanli Yuan, Gengxin Zhang
Large quantities of carbon are stored in the alpine grassland of the Tibetan Plateau (TP), where is extremely sensitive to climate change. However, it remains unclear whether soil organic matter (SOM) in different layers responds to climate change analogously, and whether microbial communities play vital roles in SOM turnover of topsoil. In this study we measured and collected SOM turnover by <sup>14</sup>C method in the alpine grassland to test climatic effects on SOM turnover in soil profiles...
July 25, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28741418/focal-adhesion-kinase-activation-is-necessary-for-stretch-induced-alignment-and-enhanced-differentiation-of-myogenic-precursor-cells
#2
Jens Isak Andersen, Cristian Pablo Pennisi, Trine Fink, Vladimir Zachar
Myogenic precursors sense and dynamically respond to mechanical stimulation through complex integrin-mediated mechanotransduction, in which focal adhesion kinase (FAK) is a fundamental intracellular signaling mediator. When skeletal myoblasts are exposed to uniaxial cyclic tensile strain (UCTS) they display uniform alignment and an enhanced rate of differentiation. In this work, we explored the role of FAK activation using C2C12 myoblasts that were grown on flexible culture plates and exposed to UCTS during the early differentiation phase...
July 25, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28737504/laser-driven-coating-of-vertically-aligned-carbon-nanotubes-with-manganese-oxide-from-metal-organic-precursors-for-energy-storage
#3
Angel Perez Del Pino, Eniko Gyorgy, Islam Alshaikh, Fernando Pantoja-Suárez, José Luis Andújar, Esther Pascual, Roger Amade, Enric Bertran Serra
Carbon nanotubes-transition metal oxide systems are intensively studied due to their excellent properties for electrochemical applications. In this work, an innovative procedure is developed for the synthesis of vertically aligned multi-walled carbon nanotubes (VACNTs) coated with transition metal oxide nanostructures. VACNTs are grown by plasma enhanced chemical vapor deposition and coated with a manganese-based metal organic precursor (MOP) film based on manganese acetate solution. Subsequent UV pulsed laser irradiation induces the effective heating-decomposition of the MOP leading to the crystallization of manganese oxide nanostructures on the VACNT surface...
July 24, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28737502/intrinsic-plasmaron-in-warm-graphene
#4
Daqing Liu, Shueyue Chen, Shengli Zhang, Ning Ma
Basing on a self-consistent method, we predict theoretically that there exists intrinsic plasmaron in graphene at nonzero temperature and it is a well defined mode, as shown by the result of Landau damping. We find that there are sharp differences between the discussed system and the QCD/QED system. Firstly, the thermal mass is proportional to α<sub>g</sub><sup>3/4</sup>T but not α<sub>g</sub>T. Secondly, at long wavelength region, the fermion channel and plasmaron channel are nearly degenerate and furthermore, the energy difference between fermion and plasmaron becomes more and more larger with increasing q at the region q>q<sub>c</sub>...
July 24, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28735729/protective-effects-of-flavonoids-isolated-from-korean-milk-thistle-cirsium-japonicum-var-maackii-maxim-matsum-on-tert-butyl-hydroperoxide-induced-hepatotoxicity-in-hepg2-cells
#5
Hyun Ah Jung, Qudeer Ahmed Abdul, Jeong Su Byun, Eun-Ji Joung, Wi-Gyeong Gwon, Min-Sup Lee, Hyeung Rak Kim, Jae Sue Choi
ETHNOPHARMACOLOGICAL RELEVANCE: Milk thistle leaves and flowers have been traditionally used as herbal remedy to alleviate liver diseases for decades. Korean milk thistle, Cirsium japonicum var. maackii (Maxim.) Matsum has been employed in traditional folk medicine as diuretic, antiphlogistic, hemostatic, and detoxifying agents. AIM OF THE STUDY: The aim of current investigation was to evaluate hepatoprotective properties of the MeOH extract of the roots, stems, leaves and flowers of Korean milk thistle as well as four isolated flavonoids, luteolin, luteolin 5-O-glucoside, apigenin and apigenin 7-O-glucuronide during t-BHP-induced oxidative stress in HepG2 cells...
July 20, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28735164/vesicle-trafficking-in-plant-immunity
#6
REVIEW
Hye Sup Yun, Chian Kwon
To defend against extracellular pathogens, plants primarily depend on cell-autonomous innate immunity due to the lack of the circulatory immune system including mobile immune cells. To extracellularly restrict or kill the pathogens, plant cells dump out antimicrobials. However, since antimicrobials are also toxic to plant cells themselves, they have to be safely delivered to the target sites in a separate vesicular compartment. In addition, because immune responses often requires energy otherwise used for the other metabolic processes, it is very important to properly control the duration and strength of immune responses depending on pathogen types...
July 20, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28732173/exploring-the-potential-of-gametic-reconstruction-of-parental-genotypes-by-f-sub-1-sub-hybrids-as-a-bridge-for-rapid-introgression
#7
Charles H Cannon, C Lane Scher
Interspecific hybridization and genetic introgression are commonly observed in natural populations of many species, especially trees. Among oaks, gene flow between closely-related species has been well documented. And yet, hybridization does not lead to a 'melting pot', i.e. the homogenization of phenotypic traits. Here, we explore how the combination of several common reproductive traits and genomic biology could create an avenue for interspecific gene flow that partially explains this apparent paradox. During meiosis, F<sub>1</sub> hybrids will produce approximately (½)<sup>n</sup> 'reconstructed' parental gametes, where n equals the number of chromosomes...
July 21, 2017: Genome Génome / Conseil National de Recherches Canada
https://www.readbyqxmd.com/read/28731423/magnetic-properties-of-monoclinic-lanthanide-metaborates-i-ln-i-bo-sub-2-sub-sub-3-sub-i-ln-i-pr-nd-gd-tb
#8
Paromita Mukherjee, Emma Suard, S E Dutton
The bulk magnetic properties of the lanthanide metaborates, <i>Ln</i>(BO<sub>2</sub>)<sub>3</sub>, <i>Ln</i> = Pr, Nd, Gd, Tb are studied using magnetic susceptibility, heat capacity and isothermal magnetisation measurements. They crystallise in a monoclinic structure containing chains of magnetic <i>Ln</i><sup>3+</sup> and could therefore exhibit features of low-dimensional magnetism and frustration. Pr(BO<sub>2</sub>)<sub>3</sub> is found to have a non-magnetic singlet ground state...
July 21, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28729882/breastfeeding-is-associated-with-enhanced-learning-abilities-in-school-aged-children
#9
Johanna Inhyang Kim, Bung-Nyun Kim, Jae-Won Kim, Soon-Beom Hong, Min-Sup Shin, Hee Jeong Yoo, Soo-Churl Cho
OBJECTIVE: The majority of studies on the associations between breastfeeding and cognitive functioning have focused on IQ, with only a few investigating learning skills, and none of the latter adjusting for maternal IQ. We examined the association between breastfeeding and learning abilities in school-aged children using a cross-sectional design. METHODS: We recruited 868 children, aged 8-11 years and parents completed the Learning Disability Evaluation Scale (LDES)...
2017: Child and Adolescent Psychiatry and Mental Health
https://www.readbyqxmd.com/read/28728845/crystal-structure-of-cis-dihydrodiol-naphthalene-dehydrogenase-nahb-from-pseudomonas-sp-mc1-insights-into-the-early-binding-process-of-the-substrate
#10
Ae Kyung Park, Hyun Kim, Il-Sup Kim, Soo Jung Roh, Seung Chul Shin, Jun Hyuck Lee, Hyun Park, Han-Woo Kim
The bacterial strain Pseudomonas sp. MC1 harbors an 81-kb metabolic plasmid, which encodes enzymes involved in the conversion of naphthalene to salicylate. Of these, the enzyme NahB (cis-dihydrodiol naphthalene dehydrogenase), which catalyzes the second reaction of this pathway, binds to various substrates such as cis-1,2-dihydro-1,2-dihydroxy-naphthalene (1,2-DDN), cis-2,3-dihydro-2,3-dihydroxybiphenyl (2,3-DDB), and 3,4-dihydro-3,4-dihydroxy-2,2',5,5'-tetrachlorobiphenyl (3,4-DD-2,2',5-5-TCB). However, the mechanism underlying its broad substrate specificity is unclear owing to the lack of structural information...
July 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28728462/increased-binding-potential-of-brain-adenosine-a-sub-1-sub-receptor-in-chronic-stages-of-patients-with-diffuse-axonal-injury-measured-with-1-methyl-sup-11-sup-c-8-dicyclopropylmethyl-1-methyl-3-propylxanthine-pet-imaging
#11
Shihori Hayashi, Motoki Inaji, Tadashi Nariai, Keiichi Oda, Muneyuki Sakata, Jun Toyohara, Kenji Ishii, Kiichi Ishiwata, Taketoshi Maehara
The positron emission tomography (PET) radioligand for adenosine A <sub>1</sub> receptor (A1R) [1-methyl- <sup>11</sup>C] 8-dicyclopropylmethyl-1-methyl-3-propylxanthine (MPDX) has recently been developed for human brain imaging. In the present study, we evaluated the alteration of the A1R in patients with diffuse axonal injury (DAI) in chronic stage <i>in vivo</i>. Ten patients with DAI (7 men and 3 women) were included in this study. Three PET examinations were sequentially performed to measure A1R binding with <sup>11</sup>C-MPDX, glucose metabolism with <sup>18</sup>F-fluorodeoxyglucose (FDG), and central benzodiazepine receptor binding with <sup>11</sup>C-flumazenil (FMZ), decreases of <sup>11</sup>C-FMZ uptake indicate neuronal loss...
July 20, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28727009/effects-of-energy-supplementation-on-energy-losses-and-nitrogen-balance-of-steers-fed-green-chopped-wheat-pasture-i-calorimetry
#12
A L Shreck, P J Ebert, E A Bailey, J S Jennings, K D Casey, B E Meyer, N A Cole
Cattle grazing wheat pasture in the southern Great Plains are sometimes fed an energy supplement; however, the benefits of supplementation on nutrient balance, energy metabolism, and greenhouse gas emissions have not been elucidated. Therefore, we used 10 British crossbred steers (206 ± 10.7 kg initial BW) in a respiration calorimetry study to evaluate the effects of energy supplementation on energy losses, N balance, and nutrient digestibility of steers fed green-chopped wheat forage. The study design was an incomplete replicated 4 × 4 Latin square with treatments in a 2 × 2 factorial arrangement...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28726690/tuning-the-morphologies-of-fluorine-doped-tin-oxides-in-the-three-dimensional-architecture-of-graphene-for-high-performance-lithium-ion-batteries
#13
Shahnawaz Phulpoto, Jinhua Sun, Siqi Qi, Linhong Xiao, Shouke Yan, Jianxin Geng
The morphology of electrode materials plays an important role in determining the performance of lithium-ion batteries (LIBs). However, studies on determining the most favorable morphology for high-performance LIBs have rarely been reported. In this study, a series of F-doped SnO<sub>x</sub> (F-SnO<sub>2</sub> and F-SnO) materials with various morphologies was synthesized using ethylenediamine as a structure-directing agent in a facile hydrothermal process. During the hydrothermal process, the F-SnO<sub>x</sub> was embedded <i>in situ</i> into the three-dimensional (3D) architecture of reduced graphene oxide (RGO) to form F-SnO<sub>x</sub>@RGO composites...
July 20, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28726675/sensitivity-of-magnetic-properties-to-chemical-pressure-in-lanthanide-garnets-i-ln-i-sub-3-sub-i-a-i-sub-2-sub-i-x-i-sub-3-sub-o-sub-12-sub-i-ln-i-gd-tb-dy-ho-i-a-i-ga-sc-in-te-i-x-i-ga-al-li
#14
Paromita Mukherjee, Alice C Sackville Hamilton, Hugh F J Glass, S E Dutton
A systematic study of the structural and magnetic properties of three-dimensionally frustrated lanthanide garnets <i>Ln</i><sub>3</sub><i>A</i><sub>2</sub><i>X</i><sub>3</sub>O<sub>12</sub>, <i>Ln</i> = Gd, Tb, Dy, Ho, <i>A</i> = Ga, Sc, In, Te, <i>X</i> = Ga, Al, Li is presented. Garnets with <i>Ln</i> = Gd show magnetic behaviour consistent with isotropic Gd<sup>3+</sup> spins; no magnetic ordering is observed for <i>T</i> ≥ 0...
July 20, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28723741/characterization-of-small-%C3%A2-3%C3%A2-cm-hepatic-lesions-with-atypical-enhancement-feature-and-hypointensity-in-hepatobiliary-phase-of-gadoxetic-acid-enhanced-mri-in-cirrhosis-a-stard-compliant-article
#15
Seung Kak Shin, Yun Soo Kim, Seung Joon Choi, Young Sup Shim, Dong Hae Jung, Oh Sang Kwon, Duck Joo Choi, Ju Hyun Kim
It is difficult to characterize the nodular lesions in cirrhotic liver if typical enhancement pattern is not present on dynamic contrast-enhanced imagings. Although the signal intensity of the hepatobiliary phase in gadoxetic acid-enhanced magnetic resonance imaging (MRI) is helpful for characterization of the lesions, some dysplastic nodules may also exhibit low signal intensity in the hepatobiliary phase. We aimed to assess the usefulness of gadoxetic acid (Gd-EOB-DTPA)-enhanced MRI including diffusion-weighted imaging (DWI) for differentiation between atypical small hepatocellular carcinomas (HCCs) and dysplastic nodules showing low signal intensity (SI) in the hepatobiliary phase, and to evaluate the MRI findings in determining the histological grade of atypical HCCs in patients with cirrhosis...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28722690/terahertz-magnetoplasmon-polaritons-with-nonlocal-corrections-for-lossy-two-dimensional-electron-gas-in-gan-based-heterostructures
#16
Lei Cao, Qiang Fu, Bang Wu, Yongqian Xiong
The high electron concentration in GaN-based heterostructures necessitate the consideration of nonlocal corrections in the magnetoconductivity for the study of magnetoplasmon-polaritons (MPPs) in the lossy two dimensional electron gas (2DEG) system with grating couplers. With the complete set of Maxwell equations, the complex dispersion frequency and absorption spectrum are calculated numerically at different magnetic field (B<sub>max</sub> = 10 T) and plasmon wavevectors (k<sub>max</sub> = 5×10<sup>7</sup> m<sup>-1</sup>)...
July 19, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28722689/compressed-h-sub-3-sub-s-inter-sublattice-coulomb-coupling-in-a-high-i-t-i-sub-c-sub-superconductor
#17
Dale R Harshman, Anthony T Fiory
Upon thermal annealing at or above room temperature (RT) and at high hydrostatic pressure <i>P</i> ~ 155 GPa, sulfur trihydride H<sub>3</sub>S exhibits a measured maximum superconducting transition temperature <i>T</i><sub>C</sub> ~ 200 K. Various theoretical frameworks incorporating strong electron-phonon coupling and Coulomb repulsion have reproduced this record-level <i>T</i><sub>C</sub>. Of particular relevance is that experimentally observed H-D isotopic correlations among <i>T</i><sub>C</sub>, <i>P</i>, and annealed order indicate an H-D isotope effect exponent α limited to values ≤ 0...
July 19, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28721943/stability-electronic-and-phononic-properties-of-%C3%AE-and-1t-structures-of-site-sub-x-sub-i-x-i-1-2-and-their-vertical-heterostructures
#18
Ali Kandemir, Fadıl Iyikanat, Hasan Sahin
By performing first-principles calculations, we predict a novel, stable single layer phase of silicon ditelluride, 1T-SiTe<sub>2</sub>, and its possible vertical heterostructures with single layer β-SiTe. Structural optimization and phonon calculations reveal that 1T-SiTe<sub>2</sub> structure has a dynamically stable ground state. Further analysis of the vibrational spectrum at the Γ point shows that single layer 1T-SiTe<sub>2</sub> has characteristic phonon modes at 80, 149, 191 and 294 cm<sup>-1</sup>...
July 19, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28720743/-usefulness-of-edoxaban-for-deep-cerebral-venous-sinus-thrombosis-with-hemorrhagic-infarction-a-case-report
#19
Takeo Amemiya, Toshio Uesaka, Katsuharu Kameda, Junji Uno, Shintaro Nagaoka, Yoshiaki Ikai, Hidefuku Gi
We describe a case of deep cerebral venous sinus thrombosis(DCVST)that was successfully treated by oral administration of the Xa inhibitor edoxaban. A 53-year-old man was admitted to our hospital because of a headache and undifferentiated dizziness. Computed tomography(CT)demonstrated a low-density area in the bilateral thalamus and high-density lesions in the internal cerebral veins(ICVs)and vein of Galen. Magnetic resonance imaging with diffusion-weighted images detected areas of hyperintensity in the bilateral thalamus...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28718778/tailoring-of-magnetic-orderings-in-fe-substituted-gdmno-sub-3-sub-bulk-samples-towards-room-temperature
#20
Arnab Pal, C Dhana Sekhar, Adyam Venimadhav, Pattukkannu Murugavel
The evolution of various magnetic ordering has been studied for orthorhombic perovskite GdMn<sub>1-<i>x</i></sub>Fe<sub><i>x</i></sub>O<sub>3</sub> (0 ≤ <i>x</i> ≤ 0.7) system to get its comprehensive magnetic phase diagram. We observed that the substitution of Fe in GdMnO<sub>3</sub> increases the antiferromagnetic Neel temperature (T<sub>N</sub>) from 40 K to above 400 K and importantly induces a spin-reorientation transition (T<sub>SR</sub>) for <i>x</i> ≥ 0...
July 18, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
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