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https://www.readbyqxmd.com/read/27932275/complete-genome-sequence-of-serinicoccus-sp-jlt9-an-actinomycete-isolated-from-the-shallow-sea-hydrothermal-system
#1
Yu Han, Dan Lin, Liwei Yu, Xiaofeng Chen, Jia Sun, Kai Tang
Serinicoccus sp. JLT9 was a novel rare actinomycete, isolated from the shallow-sea hydrothermal system. Here, we present the complete genome sequence of Serinicoccus sp. JLT9, which consists of 3,610,932bp with a GC content of 72.43%. The genome data provides insight into microbial adaption to the shallow-sea hydrothermal system and facilitates the discovery of natural compounds in the future.
December 5, 2016: Marine Genomics
https://www.readbyqxmd.com/read/27930789/comparison-of-corneal-riboflavin-gradients-using-dextran-and-hpmc-solutions
#2
Tobias Ehmke, Theo G Seiler, Isaak Fischinger, Tammo Ripken, Alexander Heisterkamp, Beatrice E Frueh
PURPOSE: To determine the riboflavin concentration gradient in the anterior corneal stroma when using hydroxypropyl methylcellulose (HPMC) or dextran as the carrier agent. METHODS: Four different groups of porcine corneas (5 each) were compared regarding the riboflavin concentration in the anterior stroma. Prior to all experiments, stable hydration conditions were established for the corresponding solution. The dextran groups were treated with 0.1% riboflavin in 20% dextran for 10 and 30 minutes and the HPMC groups with 0...
December 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27929348/shallow-discounting-of-delayed-cocaine-by-male-rhesus-monkeys-when-immediate-food-is-the-choice-alternative
#3
Sally L Huskinson, Joel Myerson, Leonard Green, James K Rowlett, William L Woolverton, Kevin B Freeman
Huskinson et al. (2015) recently examined delay discounting in monkeys choosing between an immediate drug (cocaine) reinforcer and a delayed nondrug (food) reinforcer. The present experiment examined the reverse situation: choice between immediate nondrug (food) and delayed drug (cocaine) reinforcers. Whereas the former choice situation exemplifies drug abuse from a delay-discounting perspective, our interest in the latter choice situation is derived from the observation that drug abusers, who characteristically are associated with impulsive choice, typically must devote considerable time to procuring drugs, often at the expense of immediate nondrug alternatives...
December 2016: Experimental and Clinical Psychopharmacology
https://www.readbyqxmd.com/read/27928751/laboratory-assessment-of-bioleaching-of-shallow-eutrophic-sediment-by-immobilized-photosynthetic-bacteria
#4
Shiyong Sun, Shenglan Fan, Kexuan Shen, Shen Lin, Xiaoqin Nie, Mingxue Liu, Faqin Dong, Jian Li
Eutrophic sediment is a serious problem in ecosystem restoration, especially in shallow lake ecosystems. We present a novel bioleaching approach to treat shallow eutrophic sediment with the objective of preventing the release of nitrate, phosphate, and organic compounds from the sediment to the water column, using porous mineral-immobilized photosynthetic bacteria (PSB). Bioactivity of bacteria was maintained during the immobilization process. Immobilized PSB beads were directly deposited on the sediment surface...
December 7, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27925864/intravenous-use-of-intranasal-naloxone-a-case-of-overdose-reversal
#5
Smita Das, Nina Shah, Murtuza Ghadiali
BACKGROUND: Opioid overdose is a growing concern in the United States and internationally. Prehospital or pre-medical-personnel (lay person) administration of naloxone, an opioid antagonist, to reverse overdose, is an expanding mode of harm reduction. Recently, community clinics, methadone clinics, needle exchanges, some pharmacies and other health care facilities have made naloxone available to the community. CASE: This case describes heroin overdose reversal of a 28-year-old male who had been using about a gram of heroin intravenously for 3 years, but recently reduced frequency of use in an attempt to stop...
December 7, 2016: Substance Abuse
https://www.readbyqxmd.com/read/27924686/high-temperature-and-pressure-influence-the-interdomain-orientation-of-nip7-proteins-from-p-abyssi-and-p-furiosus-md-simulations
#6
Kirill E Medvedev, Nikolay A Kolchanov, Dmitry A Afonnikov
Interactions between protein domains and their position and movement relative to each other are essential for the stability and normal functioning of a protein molecule. Features of the movement of domains may define the mechanism of enzymatic reactions. Therefore, the description of this motion is an important task in the analysis of the structures and functions of multidomain proteins. In the current work, we investigated the influence of pressure and temperature on changes in the movement of the two domains of the protein Nip7, expressed by deep-water (P...
December 7, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27924433/effect-of-wave-current-interactions-on-sediment-resuspension-in-large-shallow-lake-taihu-china
#7
Yiping Li, Chunyan Tang, Jianwei Wang, Kumud Acharya, Wei Du, Xiaomeng Gao, Liancong Luo, Huiyun Li, Shujun Dai, Jepkirui Mercy, Zhongbo Yu, Baozhu Pan
The disturbance of the water-sediment interface by wind-driven currents and waves plays a critical role in sediment resuspension and internal nutrient release in large, shallow lakes. This study analyzed the effects of the interactions between wind-induced currents an1d waves on the driving mechanism of sediment resuspension in Lake Taihu, the third largest freshwater lake in China, using acoustic and optic techniques to collect long-term, high-frequency, synchronous in situ measurements of wind, currents, waves, and suspended solid concentrations (SSCs)...
December 6, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27924432/adsorptive-properties-of-alluvial-soil-for-arsenic-v-and-its-potential-for-protection-of-the-shallow-groundwater-among-changsha-zhuzhou-and-xiangtan-cities-china
#8
Hongwei Chen, Jinhua Mei, Yueping Luo, Anni Qiu, Huan Wang
The study area is among Changsha, Zhuzhou, and Xiangtan cities, which was under agricultural use and natural conditions about 10 years ago and now is becoming part of the metropolis because of the urban expansion. This study aims to investigate the mechanisms and capabilities of the local alluvial soil layer for protecting the local shallow groundwater from arsenic pollution by field surveys and batch experiments. The field surveys showed that there was an acidic tendency of the groundwater, and phosphate, nitrate, and arsenic in the groundwater significantly increased comparing to their reference values...
December 6, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27924320/fatigue-mechanism-of-yttrium-doped-hafnium-oxide-ferroelectric-thin-films-fabricated-by-pulsed-laser-deposition
#9
Fei Huang, Xing Chen, Xiao Liang, Jun Qin, Yan Zhang, Taixing Huang, Zhuo Wang, Bo Peng, Peiheng Zhou, Haipeng Lu, Li Zhang, Longjiang Deng, Ming Liu, Qi Liu, He Tian, Lei Bi
Owing to their prominent stability and CMOS compatibility, HfO2-based ferroelectric films have attracted great attention as promising candidates for ferroelectric random-access memory applications. A major reliability issue for HfO2 based ferroelectric devices is fatigue. So far, there have been a few studies on the fatigue mechanism of this material. Here, we report a systematic study of the fatigue mechanism of yttrium-doped hafnium oxide (HYO) ferroelectric thin films deposited by pulsed laser deposition...
December 7, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27923984/short-term-effect-of-volume-recruitment-derecruitment-manoeuvre-on-chest-wall-motion-in-duchenne-muscular-dystrophy
#10
Henri Meric, Line Falaize, Didier Pradon, Matthieu Lacombe, Michel Petitjean, David Orlikowski, Hélène Prigent, Frédéric Lofaso
Because progressive respiratory muscle weakness leads to decreased chest-wall motion with eventual ribcage stiffening, the purpose was to compare vital capacity (VC) and contributions of chest-wall compartments before and after volume recruitment-derecruitment manoeuvres (VRDM) in Duchenne muscular dystrophy (DMD). We studied nine patients with DMD and VC lower than 30% of predicted. VRDM was performed using 15 insufflations-exsufflations of +30 to -30 cmH2O. VC and three-dimensional chest-wall motion were measured, as well as oxygen saturation, transcutaneous partial pressure of carbon dioxide and the rapid shallow breathing index (respiratory rate/tidal volume) before (baseline) and immediately and 1 hour after VRDM...
December 6, 2016: Chronic Respiratory Disease
https://www.readbyqxmd.com/read/27923635/novel-application-of-a-radial-water-tread-maze-can-distinguish-cognitive-deficits-in-mice-with-traumatic-brain-injury
#11
Marcella M Cline, Josh Yumul, Lisa Hysa, Dalia Murra, Gregory G Garwin, David G Cook, Warren Ladiges, Satoshi Minoshima, Donna J Cross
INTRODUCTION: The use of forced-swim, rat-validated cognition tests in mouse models of Traumatic Brain Injury (TBI) raises methodological concerns; such models are vulnerable to a number of confounding factors including impaired motor function and stress-induced non-compliance (failure to swim). This study evaluated the ability of a Radial Water Tread (RWT) maze, designed specifically for mice, that requires no swimming to distinguish mice with controlled cortical impact (CCI) induced TBI and Sham controls...
December 3, 2016: Brain Research
https://www.readbyqxmd.com/read/27922097/arctic-megaslide-at-presumed-rest
#12
Wolfram H Geissler, A Catalina Gebhardt, Felix Gross, Jutta Wollenburg, Laura Jensen, Mechita C Schmidt-Aursch, Sebastian Krastel, Judith Elger, Giacomo Osti
Slope failure like in the Hinlopen/Yermak Megaslide is one of the major geohazards in a changing Arctic environment. We analysed hydroacoustic and 2D high-resolution seismic data from the apparently intact continental slope immediately north of the Hinlopen/Yermak Megaslide for signs of past and future instabilities. Our new bathymetry and seismic data show clear evidence for incipient slope instability. Minor slide deposits and an internally-deformed sedimentary layer near the base of the gas hydrate stability zone imply an incomplete failure event, most probably about 30000 years ago, contemporaneous to or shortly after the Hinlopen/Yermak Megaslide...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921173/day-to-day-variations-in-the-amplitude-of-the-soil-temperature-cycle-and-impact-on-adult-eclosion-timing-of-the-onion-fly
#13
Kazuhiro Tanaka, Yasuhiko Watari
The onion fly Delia antiqua advances its eclosion timing with decreasing temperature amplitude to compensate for a depth-dependent phase delay of the zeitgeber. To elucidate whether or not naturally occurring day-to-day variations in the amplitude of soil temperature cycle disturb this compensatory response, we monitored daily variations in the temperature amplitude in natural soils and evaluated the impact on adult eclosion timing. Our results indicated that both median and variance of the soil temperature amplitude become smaller as depth increases...
December 5, 2016: International Journal of Biometeorology
https://www.readbyqxmd.com/read/27920606/phylogenetic-placement-of-the-pacific-northwest-subterranean-endemic-diving-beetle-stygoporus-oregonensis-larson-labonte-dytiscidae-hydroporinae
#14
Kojun Kanda, R Antonio Gomez, Richard Van Driesche, Kelly B Miller, David R Maddison
Stygoporus oregonensis Larson & LaBonte is a little-known subterranean diving beetle, which, until recently, had not been collected since the type series was taken from a shallow well in western Oregon, USA, in 1984. Here we report the discovery of additional specimens collected from a nearby well in the Willamette Valley. Sequence data from four mitochondrial genes, wingless, and histone III place Stygoporus Larson & LaBonte in the predominantly Mediterranean subtribe Siettitiina of the Hydroporini. Morphological support for these results is discussed, and details of the collecting circumstances of the new specimens are presented...
2016: ZooKeys
https://www.readbyqxmd.com/read/27920595/a-new-muricea-species-cnidaria-anthozoa-octocorallia-from-the-eastern-tropical-pacific
#15
Odalisca Breedy, Hector M Guzman
The genus Muricea is considered abundant and widely distributed along the eastern Pacific. Its occurrence in shallow waters has been recognised; however species from deeper than 30 m have been rarely recorded. During the 2005 R/V Urracá expedition along the north and central Pacific coast of Costa Rica several octocoral specimens were collected by bottom trawling from 30 to 150 m yielding new species and new records. Herein we describe a new species of Muricea from deeper than 30 m. The morphological characters of the species were analysed and illustrated by optic and scanning electron microscopy...
2016: ZooKeys
https://www.readbyqxmd.com/read/27920125/structures-of-human-mitofusin-1-provide-insight-into-mitochondrial-tethering
#16
Yuanbo Qi, Liming Yan, Caiting Yu, Xiangyang Guo, Xin Zhou, Xiaoyu Hu, Xiaofang Huang, Zihe Rao, Zhiyong Lou, Junjie Hu
Mitochondria undergo fusion and fission. The merging of outer mitochondrial membranes requires mitofusin (MFN), a dynamin-like GTPase. How exactly MFN mediates membrane fusion is poorly understood. Here, we determined crystal structures of a minimal GTPase domain (MGD) of human MFN1, including the predicted GTPase and the distal part of the C-terminal tail (CT). The structures revealed that a helix bundle (HB) formed by three helices extending from the GTPase and one extending from the CT closely attaches to the GTPase domain, resembling the configuration of bacterial dynamin-like protein...
December 5, 2016: Journal of Cell Biology
https://www.readbyqxmd.com/read/27918489/assessment-of-the-potential-energy-hypersurfaces-in-thymine-within-multiconfigurational-theory-casscf-vs-caspt2
#17
Javier Segarra-Martí, Antonio Francés-Monerris, Daniel Roca-Sanjuán, Manuela Merchán
The present study provides new insights into the topography of the potential energy hypersurfaces (PEHs) of the thymine nucleobase in order to rationalize its main ultrafast photochemical decay paths by employing two methodologies based on the complete active space self-consistent field (CASSCF) and the complete active space second-order perturbation theory (CASPT2) methods: (i) CASSCF optimized structures and energies corrected with the CASPT2 method at the CASSCF geometries and (ii) CASPT2 optimized geometries and energies...
December 3, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27917528/the-ultimate-signal-to-noise-ratio-in-realistic-body-models
#18
Bastien Guérin, Jorge F Villena, Athanasios G Polimeridis, Elfar Adalsteinsson, Luca Daniel, Jacob K White, Lawrence L Wald
PURPOSE: We compute the ultimate signal-to-noise ratio (uSNR) and G-factor (uGF) in a realistic head model from 0.5 to 21 Tesla. METHODS: We excite the head model and a uniform sphere with a large number of electric and magnetic dipoles placed at 3 cm from the object. The resulting electromagnetic fields are computed using an ultrafast volume integral solver, which are used as basis functions for the uSNR and uGF computations. RESULTS: Our generalized uSNR calculation shows good convergence in the sphere and the head and is in close agreement with the dyadic Green's function approach in the uniform sphere...
December 4, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27917476/pop-up-satellite-archival-tag-effects-on-the-diving-behaviour-growth-and-survival-of-adult-atlantic-salmon-salmo-salar-at-sea
#19
R D Hedger, A H Rikardsen, E B Thorstad
The effects of large, externally attached pop-up satellite archival tags (PSATs) were compared with those of small implanted data storage tags (DSTs) on adult Atlantic salmon Salmo salar during their ocean migration in regards to depth utilization, diving depth, diving rate, diving speed and temperatures experienced. Additionally the return rate and growth of individuals tagged with PSATs was compared with those of small acoustic tags and DSTs. Overall, the depth distribution of individuals tagged with PSATs was similar to that of those tagged with DSTs, reflecting the pelagic nature of S...
December 4, 2016: Journal of Fish Biology
https://www.readbyqxmd.com/read/27917397/reduced-nicotine-content-expectancies-affect-initial-responses-to-smoking
#20
Melissa Mercincavage, Joshua M Smyth, Andrew A Strasser, Steven A Branstetter
OBJECTIVES: We sought to determine if negative responses to reduced nicotine content (RNC) cigarettes during open-label trials result from smokers' (negative) expectancies. We examined the effects of nicotine content description - independent of actual nicotine content - on subjective responses (craving reduction, withdrawal suppression, mood changes, and sensory ratings) and smoking behaviors (topography measures and carbon monoxide [CO] boost). METHODS: Thirty-six 12-hour-abstinent daily smokers completed a 3-session crossover trial...
October 2016: Tobacco Regulatory Science
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