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https://www.readbyqxmd.com/read/28334275/identification-of-a-novel-bzip-transcription-factor-in-camellia-sinensis-as-a-negative-regulator-of-freezing-tolerance-in-transgenic-arabidopsis
#1
Lu Wang, Hongli Cao, Wenjun Qian, Lina Yao, Xinyuan Hao, Nana Li, Yajun Yang, Xinchao Wang
Background and Aims: Basic region/leucine zipper (bZIP) transcription factors play vital roles in the abiotic stress response of plants. However, little is known about the function of bZIP genes in Camellia sinensis . Methods: CsbZIP6 was overexpressed in Arabidopsis thaliana . Effects of CsbZIP6 overexpression on abscisic acid (ABA) sensitivity, freezing tolerance and the expression of cold-responsive genes in arabidopsis were studied. Key Results: CsbZIP6 was induced during cold acclimation in tea plant...
March 14, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28333199/effect-of-butyrate-and-lactobacillus-gg-on-a-butyrate-receptor-and-transporter-during-campylobacter-jejuni-exposure
#2
Gail A M Cresci, Paul C Mayer, Stuart A Thompson
Campylobacter jejuni (C. jejuni) frequently infects humans causing many gastrointestinal symptoms, fever, fatigue and several long-term debilitating diseases. Current treatment for campylobacteriosis includes rehydration and in some cases, antibiotic therapy. Probiotics are used to treat several gastrointestinal diseases. Butyrate is a short-chain fatty acid known to promote intestinal health. Interaction of butyrate with its respective receptor (HCAR2) and transporter (SLC5A8), both expressed in the intestine, is associated with water and electrolyte absorption as well as providing defense against colon cancer and inflammation...
February 23, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28333068/effects-of-reactive-oxygen-species-on-tubular-transport-along-the-nephron
#3
REVIEW
Agustin Gonzalez-Vicente, Jeffrey L Garvin
Reactive oxygen species (ROS) are oxygen-containing molecules naturally occurring in both inorganic and biological chemical systems. Due to their high reactivity and potentially damaging effects to biomolecules, cells express a battery of enzymes to rapidly metabolize them to innocuous intermediaries. Initially, ROS were considered by biologists as dangerous byproducts of respiration capable of causing oxidative stress, a condition in which overproduction of ROS leads to a reduction in protective molecules and enzymes and consequent damage to lipids, proteins, and DNA...
March 23, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28332317/photoelectrochemical-hydrogen-peroxide-production-from-water-on-a-wo3-bivo4-photoanode-and-from-o2-on-an-au-cathode-without-external-bias
#4
Kojiro Fuku, Yuta Miyase, Yugo Miseki, Takashi Funaki, Takahiro Gunji, Kazuhiro Sayama
The photoelectrochemical production and degradation properties of hydrogen peroxide (H2O2) were investigated on a WO3/BiVO4 photoanode in an aqueous electrolyte of hydrogen carbonate (HCO3-). Highly-concentration of HCO3- species rather than CO32- species inhibited the oxidative degradation of H2O2 on the WO3/BiVO4 photoanode, resulting in achieving effectively oxidative H2O2 generation and accumulation from water (H2O). Moreover, the Au cathode facilitated two-electron reduction of O2, resulting in reductive H2O2 production with high current efficiency...
March 23, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28332116/sweating-rate-and-sweat-sodium-concentration-in-athletes-a-review-of-methodology-and-intra-interindividual-variability
#5
REVIEW
Lindsay B Baker
Athletes lose water and electrolytes as a consequence of thermoregulatory sweating during exercise and it is well known that the rate and composition of sweat loss can vary considerably within and among individuals. Many scientists and practitioners conduct sweat tests to determine sweat water and electrolyte losses of athletes during practice and competition. The information gleaned from sweat testing is often used to guide personalized fluid and electrolyte replacement recommendations for athletes; however, unstandardized methodological practices and challenging field conditions can produce inconsistent/inaccurate results...
March 22, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28330954/physiological-and-biochemical-changes-associated-with-acute-experimental-dehydration-in-the-desert-adapted-mouse-peromyscus-eremicus
#6
Lauren Kordonowy, Kaelina D Lombardo, Hannah L Green, Molly D Dawson, Evice A Bolton, Sarah LaCourse, Matthew D MacManes
Characterizing traits critical for adaptation to a given environment is an important first step in understanding how phenotypes evolve. How animals adapt to the extreme heat and aridity commonplace to deserts is an exceptionally interesting example of these processes, and has been the focus of study for decades. In contrast to those studies, where experiments are conducted on either wild animals or captive animals held in non-desert conditions, the study described here leverages a unique environmental chamber that replicates desert conditions for captive Peromyscus eremicus (cactus mouse)...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28329760/low-temperature-hydrogen-production-from-water-and-methanol-using-pt-%C3%AE-moc-catalysts
#7
Lili Lin, Wu Zhou, Rui Gao, Siyu Yao, Xiao Zhang, Wenqian Xu, Shijian Zheng, Zheng Jiang, Qiaolin Yu, Yong-Wang Li, Chuan Shi, Xiao-Dong Wen, Ding Ma
Polymer electrolyte membrane fuel cells (PEMFCs) running on hydrogen are attractive alternative power supplies for a range of applications, with in situ release of the required hydrogen from a stable liquid offering one way of ensuring its safe storage and transportation before use. The use of methanol is particularly interesting in this regard, because it is inexpensive and can reform itself with water to release hydrogen with a high gravimetric density of 18.8 per cent by weight. But traditional reforming of methanol steam operates at relatively high temperatures (200-350 degrees Celsius), so the focus for vehicle and portable PEMFC applications has been on aqueous-phase reforming of methanol (APRM)...
March 22, 2017: Nature
https://www.readbyqxmd.com/read/28327587/in-situ-characterization-of-the-initial-effect-of-water-on-molecular-interactions-at-the-interface-of-organic-inorganic-hybrid-systems
#8
Sven Pletincx, Lena Trotochaud, Laura-Lynn Fockaert, Johannes M C Mol, Ashley R Head, Osman Karslıoğlu, Hendrik Bluhm, Herman Terryn, Tom Hauffman
Probing initial interactions at the interface of hybrid systems under humid conditions has the potential to reveal the local chemical environment at solid/solid interfaces under real-world, technologically relevant conditions. Here, we show that ambient pressure X-ray photoelectron spectroscopy (APXPS) with a conventional X-ray source can be used to study the effects of water exposure on the interaction of a nanometer-thin polyacrylic acid (PAA) layer with a native aluminum oxide surface. The formation of a carboxylate ionic bond at the interface is characterized both with APXPS and in situ attenuated total reflectance Fourier transform infrared spectroscopy in the Kretschmann geometry (ATR-FTIR Kretschmann)...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28327506/efficacy-and-safety-evaluation-of-a-chlorine-dioxide-solution
#9
Jui-Wen Ma, Bin-Syuan Huang, Chu-Wei Hsu, Chun-Wei Peng, Ming-Long Cheng, Jung-Yie Kao, Tzong-Der Way, Hao-Chang Yin, Shan-Shue Wang
In this study, a chlorine dioxide solution (UC-1) composed of chlorine dioxide was produced using an electrolytic method and subsequently purified using a membrane. UC-1 was determined to contain 2000 ppm of gaseous chlorine dioxide in water. The efficacy and safety of UC-1 were evaluated. The antimicrobial activity was more than 98.2% reduction when UC-1 concentrations were 5 and 20 ppm for bacteria and fungi, respectively. The half maximal inhibitory concentrations (IC50) of H1N1, influenza virus B/TW/71718/04, and EV71 were 84...
March 22, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28323376/highly-active-gan-stabilized-ta3-n5-thin-film-photoanode-for-solar-water-oxidation
#10
Miao Zhong, Takashi Hisatomi, Yutaka Sasaki, Sayaka Suzuki, Katsuya Teshima, Mamiko Nakabayashi, Naoya Shibata, Hiroshi Nishiyama, Masao Katayama, Taro Yamada, Kazunari Domen
Ta3 N5 is a very promising photocatalyst for solar water splitting because of its wide spectrum solar energy utilization up to 600 nm and suitable energy band position straddling the water splitting redox reactions. However, its development has long been impeded by poor compatibility with electrolytes. Herein, we demonstrate a simple sputtering-nitridation process to fabricate high-performance Ta3 N5 film photoanodes owing to successful synthesis of the vital TaOδ precursors. An effective GaN coating strategy is developed to remarkably stabilize Ta3 N5 by forming a crystalline nitride-on-nitride structure with an improved nitride/electrolyte interface...
March 21, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28322545/surface-modification-of-the-lifepo4-cathode-for-the-aqueous-rechargeable-lithium-ion-battery
#11
Artur Tron, Yong Nam Jo, Si Hyoung Oh, Yeong Don Park, Junyoung Mun
The LiFePO4 surface is coated with AlF3 via a simple chemical precipitation for aqueous rechargeable lithium ion batteries (ARLBs). During electrochemical cycling, the unfavorable side reactions between LiFePO4 and the aqueous electrolyte (1 M Li2SO4 in water) leave a highly resistant passivation film, which causes a deterioration in the electrochemical performance. The coated LiFePO4 by 1 wt.% AlF3 has a high discharge capacity of 132 mAh g-1 and a highly-improved cycle life, which shows 93% capacity retention even after 100 cycles, whereas the pristine LiFePO4 has a specific capacity of 123 mAh g-1 and a poor capacity retention of 82%...
March 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28319373/morphology-controllable-synthesis-of-zn-co-mixed-sulfide-nanostructures-on-carbon-fiber-paper-towards-efficient-rechargeable-zinc-air-batteries-and-water-electrolysis
#12
Xiaoyu Wu, Xiaopeng Han, Xiaoya Ma, Wei Zhang, Yida Deng, Cheng Zhong, Wenbin Hu
It remains an ongoing challenge to develop cheap, highly active and stable electrocatalysts to promote the sluggish electrocatalytic oxygen evolution, oxygen reduction, and hydrogen evolution reactions for rechargeable metal-air batteries and water-splitting systems. In this work, we report the morphology-controllable synthesis of zinc cobalt mixed sulfide (Zn-Co-S) nanoarchitectures, including nanosheets, nanoplates, and nanoneedles, grown on conductive carbon fiber paper (CFP) and the micro-nanostructure dependent electrochemical efficacy for catalyzing hydrogen and oxygen in zinc-air batteries and water electrolysis...
March 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28317341/metal-doping-for-enhancing-the-photoelectrochemical-behavior-of-lafeo3-photocathodes
#13
María Isabel Díez-García, Roberto Gómez
The development of tandem devices for water photosplitting requires finding photocathodic materials based on earth-abundant elements and showing long-term stability in aqueous electrolytes. Ternary metal oxides seem to be a viable option, among which perovskites stand out. In this context, transparent and compact LaFeO3 thin film electrodes have been prepared by sol-gel, both undoped and doped with metals (M) such as magnesium or zinc. Pristine electrodes support the development of cathodic photocurrents in 0...
March 20, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28316939/application-of-established-pathophysiologic-processes-brings-greater-clarity-to-diagnosis-and-treatment-of-hyponatremia
#14
EDITORIAL
John K Maesaka, Louis J Imbriano, Nobuyuki Miyawaki
Hyponatremia, serum sodium < 135 mEq/L, is the most common electrolyte abnormality and is in a state of flux. Hyponatremic patients are symptomatic and should be treated but our inability to consistently determine the causes of hyponatremia has hampered the delivery of appropriate therapy. This is especially applicable to differentiating syndrome of inappropriate antidiuresis (SIAD) from cerebral salt wasting (CSW) or more appropriately, renal salt wasting (RSW), because of divergent therapeutic goals, to water-restrict in SIAD and administer salt and water in RSW...
March 6, 2017: World Journal of Nephrology
https://www.readbyqxmd.com/read/28316047/exogenous-application-of-plant-growth-regulators-pgrs-induces-chilling-tolerance-in-short-duration-hybrid-maize
#15
Muhammad Ahmed Waqas, Imran Khan, Muhammad Javaid Akhter, Mehmood Ali Noor, Umair Ashraf
Chilling stress hampers the optimal performance of maize under field conditions precipitously by inducing oxidative stress. To confer the damaging effects of chilling stress, the present study aimed to investigate the effects of some natural and synthetic plant growth regulators, i.e., salicylic acid (SA), thiourea (TU), sorghum water extract (SWE), and moringa leaf extract (MLE) on chilling stress tolerance in autumn maize hybrid. Foliar application of growth regulators at low concentrations was carried out at six leaf (V6) and tasseling stages...
March 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28314194/electrocatalytic-reduction-of-low-concentration-thiamphenicol-and-florfenicol-in-wastewater-with-multi-walled-carbon-nanotubes-modified-electrode
#16
Dongli Deng, Fei Deng, Bobin Tang, Jinzhong Zhang, Jiang Liu
The electrocatalytic reduction of thiamphenicol (TAP) and florfenicol (FF) was investigated with multi-walled carbon nanotubes (MWCNTs) modified electrode. MWCNTs was dispersed in pure water with the assistance of dihexadecyl phosphate (DHP), and then modified on glassy carbon electrode (GCE). The electrocatalytic reduction conditions, such as bias voltage, supporting electrolyte and its initial pH, and the initial concentrations of TAP and FF, were also optimized. The experimental results indicated that the removal efficiencies of 2mgL(-1) TAP and FF in 0...
March 7, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28303369/clinical-aspects-of-changes-in-water-and-sodium-homeostasis-in-the-elderly
#17
REVIEW
Christian A Koch, Tibor Fulop
The population of elderly individuals is increasing worldwide. With aging, various hormonal and kidney changes occur, both affecting water homeostasis. Aging is a risk factor for chronic kidney disease (CKD) and many features of CKD are reproduced in the aging kidney. Dehydration and hyperosmolarity can be triggered by diminished thirst perception in this population. Elderly with dementia are especially susceptible to abnormalities of their electrolyte and body water homeostasis and should be (re-)assessed for polypharmacy...
March 16, 2017: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/28296940/direct-measurement-of-interaction-forces-between-bovine-serum-albumin-and-poly-ethylene-oxide-in-water-and-electrolyte-solutions
#18
Sergio M Acuña, José M Bastías, Pedro G Toledo
The net interaction between a probe tip coated with bovine serum albumin (BSA) protein and a flat substrate coated with poly(ethylene oxide) (PEO) polymer was measured directly on approach in water and electrolyte solutions using AFM. The approach force curve between the two surfaces was monotonically repulsive in water and in electrolyte solutions. At pH ~5, slightly above the isoelectric point (pI) of BSA, and at large distances, the force was dominated by electrostatic repulsion between the oxygen atoms of the incoming protein with those belonging to the ether groups of PEO...
2017: PloS One
https://www.readbyqxmd.com/read/28296133/iron-based-electrodes-meet-water-based-preparation-fluorine-free-electrolyte-and-binder-a-chance-for-more-sustainable-li-ion-batteries
#19
Mario Valvo, Anti Liivat, Henrik Eriksson, Cheuk-Wai Tai, Kristina Edström
Environmentally friendly and cost-effective Li-ion cells are fabricated with abundant, non-toxic LiFePO4 cathodes and Fe oxide anodes. A water-soluble alginate binder is used for coating both electrodes to reduce the environmental footprint. Critical reactivity of LiPF6-based electrolytes toward possible H2O traces in water-processed electrodes is overcome by using a LiBOB salt. The absence of fluorine in both electrolyte and binder is a cornerstone for improved cell chemistry and is demonstrated to result in stable battery operation...
March 10, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28295716/nicop-nanoarray-a-superior-pseudocapacitor-electrode-with-high-areal-capacitance
#20
Menglai Kong, Zao Wang, Weiyi Wang, Min Ma, Danni Liu, Shuai Hao, Rongmei Kong, Gu Du, Abdullah M Asiri, Yadong Yao, Xuping Sun
High-performance supercapacitors require the design and development of electrode materials with high conductivity and a large electrolyte-accessible surface area. Here, the use of a conductive NiCoP nanoarray on nickel foam (NiCoP/NF) as a superior pseudocapacitor electrode is demonstrated. This 3D electrode exhibits high areal capacitances of 9.2 and 5.97 F cm(-2) at current densities of 2 and 50 mA cm(-2) , respectively, with good rate capability and cycling stability. The asymmetric supercapacitor (ASC) device assembled using NiCoP/NF as positive electrode and active carbon as negative electrode delivers a high energy density of 1...
February 3, 2017: Chemistry: a European Journal
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