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https://www.readbyqxmd.com/read/28514655/inhibitory-control-of-feature-selectivity-in-an-object-motion-sensitive-circuit-of-the-retina
#1
Tahnbee Kim, Daniel Kerschensteiner
Object motion sensitive (OMS) W3-retinal ganglion cells (W3-RGCs) in mice respond to local movements in a visual scene but remain silent during self-generated global image motion. The excitatory inputs that drive responses of W3-RGCs to local motion were recently characterized, but which inhibitory neurons suppress W3-RGCs' responses to global motion, how these neurons encode motion information, and how their connections are organized along the excitatory circuit axis remains unknown. Here, we find that a genetically identified amacrine cell (AC) type, TH2-AC, exhibits fast responses to global motion and slow responses to local motion...
May 16, 2017: Cell Reports
https://www.readbyqxmd.com/read/28470449/is-phenotypic-plasticity-a-key-mechanism-for-responding-to-thermal-stress-in-ants
#2
Cristela Sánchez Oms, Xim Cerdá, Raphaël Boulay
Unlike natural selection, phenotypic plasticity allows organisms to respond quickly to changing environmental conditions. However, plasticity may not always be adaptive. In insects, body size and other morphological measurements have been shown to decrease as temperature increases. This relationship may lead to a physiological conflict in ants, where larger body size and longer legs often confer better thermal resistance. Here, we tested the effect of developmental temperature (20, 24, 28 or 32 °C) on adult thermal resistance in the thermophilic ant species Aphaenogaster senilis...
June 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/28449060/the-influence-of-miniscrew-insertion-torque
#3
Melissa V Nguyen, John Codrington, Lloyd Fletcher, Craig W Dreyer, Wayne J Sampson
Objective: The aim of this in vitro study was to evaluate the progressive development of surface microdamage produced following the insertion of orthodontic miniscrews (OMs) into 1.5 mm thick porcine tibia bone using maximum insertion torque values of 12 Ncm, 18 Ncm, and 24 Ncm. Methods: Aarhus OMs (diameter 1.5 mm; length 6 mm) were inserted into 1.5 mm porcine bone using a torque limiting hand screwdriver set at 12 Ncm, 18 Ncm, and 24 Ncm. A custom rig equipped with a compression load cell was used to record the compression force exerted during manual insertion...
April 24, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28445696/which-factors-affect-citation-rates-in-the-oral-and-maxillofacial-surgery-literature
#4
Kristie Cheng, Thomas B Dodson, Mark A Egbert, Srinivas M Susarla
PURPOSE: Citation rate is one of several tools to measure academic productivity. The purposes of this study were to estimate and identify factors associated with citation rates in the oral and maxillofacial surgery (OMS) literature. MATERIALS AND METHODS: This was a retrospective longitudinal study of publications in the Journal of Oral and Maxillofacial Surgery (JOMS), International Journal of Oral and Maxillofacial Surgery (IJOMS), and Oral Surgery, Oral Medicine, Oral Pathology, and Oral Radiology from January through December 2012...
April 1, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28443610/ordered-micro-macro-porous-k-oms-2-sio2-nanocatalysts-facile-synthesis-low-cost-and-high-catalytic-activity-for-diesel-soot-combustion
#5
Xuehua Yu, Zhen Zhao, Yuechang Wei, Jian Liu
A series of novel oxide catalysts, which contain three-dimensionally ordered macroporous (3DOM) and microporous structure, were firstly designed and successfully synthesized by simple method. In the as-prepared catalysts, 3DOM SiO2 is used as support and microporous K-OMS-2 oxide nanoparticles are supported on the wall of SiO2. 3DOM K-OMS-2/SiO2 oxide catalysts were firstly used in soot particle oxidation reaction and they show very high catalytic activities. The high activities of K-OMS-2/SiO2 oxide catalysts can be assigned to three possible reasons: macroporous effect of 3DOM structure for improving contact between soot and catalyst, microporous effect of K-OMS-2 for adsorption of small gas molecules and interaction of K and Mn for activation of gas molecules...
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28432174/postintervention-acute-opsoclonus-myoclonus-syndrome
#6
Annelise Aquilina, Nicola Dingli, Josanne Aquilina
Opsoclonus myoclonus syndrome (OMS) is a rare, neurological condition affecting 1 in 10 000 000 people annually. Opsoclonus, defined as involuntary rapid, multivectorial oscillations of the eyes, together with ataxia and myoclonus are usually present. OMS may be paraneoplastic: often associated with occult neuroblastoma in childhood and with breast carcinoma or small cell lung carcinoma in adults. Other aetiologies include viral or toxic agents. The pathogenesis is thought to be immune mediated. A 37-year-old woman with previous inflammatory cranial mononeuropathies was admitted for elective dilatation and curettage (D&C)...
April 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28423005/an-archosauromorph-dominated-ichnoassemblage-in-fluvial-settings-from-the-late-early-triassic-of-the-catalan-pyrenees-ne-iberian-peninsula
#7
Eudald Mujal, Josep Fortuny, Arnau Bolet, Oriol Oms, José Ángel López
The vertebrate recovery after the end-Permian mass extinction can be approached through the ichnological record, which is much more abundant than body fossils. The late Olenekian (Early Triassic) tetrapod ichnoassemblage of the Catalan Pyrenean Basin is the most complete and diverse of this age from Western Tethys. This extensional basin, composed of several depocenters, was formed in the latest phases of the Variscan orogeny (Pangea breakup) and was infilled by braided and meandering fluvial systems of the red-beds Buntsandstein facies...
2017: PloS One
https://www.readbyqxmd.com/read/28391919/ethanol-mediated-as-iii-adsorption-onto-zn-loaded-pinecone-biochar-experimental-investigation-modeling-and-optimization-using-hybrid-artificial-neural-network-genetic-algorithm-approach
#8
Mohd Zafar, N Van Vinh, Shishir Kumar Behera, Hung-Suck Park
Organic matters (OMs) and their oxidization products often influence the fate and transport of heavy metals in the subsurface aqueous systems through interaction with the mineral surfaces. This study investigates the ethanol (EtOH)-mediated As(III) adsorption onto Zn-loaded pinecone (PC) biochar through batch experiments conducted under Box-Behnken design. The effect of EtOH on As(III) adsorption mechanism was quantitatively elucidated by fitting the experimental data using artificial neural network and quadratic modeling approaches...
April 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28383581/an-ultrasonic-atomization-assisted-synthesis-of-self-assembled-manganese-oxide-octahedral-molecular-sieve-nanostructures-and-their-application-in-catalysis-and-water-treatment
#9
Aparna Iyer, Chung-Hao Kuo, Saminda Dharmarathna, Zhu Luo, Dinithi Rathnayake, Junkai He, Steven L Suib
Manganese oxides of octahedral molecular sieve (OMS-2) type have important applications in oxidation catalysis, adsorption, and as battery materials. The synthesis methods employed determine their morphology and textural properties which markedly affect their catalytic activity. In this work, a room temperature ultrasonic atomization assisted synthesis of OMS-2 type materials is demonstrated. This synthesis differs from previously reported methods in that it is a simple, no-heat application that leads to a striking morphological characteristic of uniformly sized OMS-2 fibers and their self-assembly into dense as well as hollow spheres...
April 6, 2017: Nanoscale
https://www.readbyqxmd.com/read/28373551/identification-of-specific-posttranslational-o-mycoloylations-mediating-protein-targeting-to-the-mycomembrane
#10
Clément Carel, Julien Marcoux, Valérie Réat, Julien Parra, Guillaume Latgé, Françoise Laval, Pascal Demange, Odile Burlet-Schiltz, Alain Milon, Mamadou Daffé, Maryelle G Tropis, Marie A M Renault
The outer membranes (OMs) of members of the Corynebacteriales bacterial order, also called mycomembranes, harbor mycolic acids and unusual outer membrane proteins (OMPs), including those with α-helical structure. The signals that allow precursors of such proteins to be targeted to the mycomembrane remain uncharacterized. We report here the molecular features responsible for OMP targeting to the mycomembrane of Corynebacterium glutamicum, a nonpathogenic member of the Corynebacteriales order. To better understand the mechanisms by which OMP precursors were sorted in C...
April 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28338296/photochromism-and-dual-color-fluorescence-in-a-polyoxometalate-benzospiropyran-molecular-switch
#11
Arnaud Parrot, Aurélie Bernard, Aurélie Jacquart, Stefano Artin Serapian, Carles Bo, Etienne Derat, Olivier Oms, Anne Dolbecq, Anna Proust, Rémi Métivier, Pierre Mialane, Guillaume Izzet
The photophysical properties of a Keggin-type polyoxometalate (POM) covalently bounded to a benzospiropyran (BSPR) unit have been investigated. These studies reveal that both closed and open forms are emissive with distinct spectral features (λem (closed form)=530 nm, λem (open form)=670 nm) and that the fluorescence of the BSPR unit of the hybrid is considerably enhanced compared to BSPR parent compounds. While the fluorescence excitation energy of the BSPR reference compounds (370 nm) is close to the intense absorption responsible of the photochromic character (350 nm), the fluorescence excitation of the hybrid is shifted to lower energy (400 nm), improving the population of the emissive state...
March 24, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28318796/development-and-application-of-a-quantification-method-for-water-soluble-organosulfates-in-atmospheric-aerosols
#12
Gang Cao, Xiaopei Zhao, Di Hu, Rongshu Zhu, Feng Ouyang
In recent years, organosulfates have been found as a significant component of secondary organic aerosols from both smog chamber experiments and field measurements. In this study, an indirect method was developed to estimate organosulfates in aerosol particles as a whole based on their sulfate functional group. A series of experiments were conducted to optimize and validate the method, and it was then applied to quantify organosulfates in the aerosol samples collected at three sampling characteristic sites in Shenzhen, with one close to a power plant (PP), one at a heavy traffic intersection (HTI), and one on the campus of Harbin Institute of Technology Shenzhen graduate school (HITSZ)...
March 16, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28316917/a-comparative-study-of-syndecan-1-expression-in-different-odontogenic-tumors
#13
Shahroo Etemad-Moghadam, Mojgan Alaeddini
BACKGROUND: Expression of various cellular/molecular factors change during the course of tumor formation from odontogenic tissues of the tooth germ. Evaluation of these factors can help provide a better perception of the tumorigenesis and biologic behavior of odontogenic tumors (OTs). Syndecan-1 is a heparan sulfate proteoglycan which has not been extensively investigated in these lesions. The objective of the present study was to assess the immunohistochemical expression of CD138 in adenomatoid odontogenic tumor (AOT), ameloblastic fibroma (AF) and odontogenic myxoma (OM) and to compare it with ameloblastoma and keratocystic odontogenic tumor (KCOT)...
January 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28296470/more-declassified-evidence-implicates-cia-physicians-in-unethical-research
#14
Renée Llanusa-Cestero
In 2010, in an article in this journal, I argued that declassified documents implicated Central Intelligence Agency (CIA) physicians in the conduct of unethical research on enhanced interrogation using detainee subjects. The focus, then as now, is upon physicians at the Office of Medical Services (OMS). The 2010 article highlighted the heavily redacted "Draft OMS Guidelines on Medical and Psychological Support to Detainee Interrogations" (the Draft). This commentary focuses upon the recently declassified final version of that document revealing further culpable evidence of unethical human subject research...
2017: Accountability in Research
https://www.readbyqxmd.com/read/28285049/adsorption-and-release-of-ampicillin-antibiotic-from-ordered-mesoporous-silica
#15
Valentina Nairi, Luca Medda, Maura Monduzzi, Andrea Salis
In this work the adsorption and the release of ampicillin - a β-lactam penicillin-like antibiotic - from MCM-41, SBA-15, and (amino functionalized) SBA-15-NH2 ordered mesoporous silica (OMS) materials were investigated. The silica matrices differ for their pore size (SBA-15 vs. MCM-41) mainly, and also for surface charge (SBA-15 and MCM-41, vs. SBA-15-NH2). OMS samples were characterized through small-angle X-rays scattering (SAXS), transmission electron microscopy (TEM), N2 adsorption-desorption isotherms, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and potentiometric titrations...
July 1, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28279584/simulation-training-for-the-office-based-anesthesia-team
#16
REVIEW
Richard M Ritt, Jeffrey Bennett, David Todd
An OMS office is a complex environment. Within such an environment, a diverse scope of complex surgical procedures is performed with different levels of anesthesia, ranging from local anesthesia to general anesthesia, on patients with varying comorbidities. Optimal patient outcomes require a functional surgical and anesthetic team, who are familiar with both standard operational principles and emergency recognition and management. Offices with high volume and time pressure add further stress and potential risk to the office environment...
March 6, 2017: Oral and Maxillofacial Surgery Clinics of North America
https://www.readbyqxmd.com/read/28274776/corrigendum-to-chemokine-cytokine-profiling-after-rituximab-reciprocal-expression-of-bca-1-cxcl13-and-baff-in-childhood-oms-cytokine-53-2011-384-389
#17
Michael R Pranzatelli, Elizabeth D Tate, Anna L Travelstead, Steven J Verhulst
No abstract text is available yet for this article.
March 5, 2017: Cytokine
https://www.readbyqxmd.com/read/28274326/a-systematic-review-and-meta-analysis-of-outcome-measures-to-assess-postural-control-in-older-adults-who-undertake-exergaming
#18
REVIEW
Robin Tahmosybayat, Katherine Baker, Alan Godfrey, Nick Caplan, Gill Barry
Exergaming has been shown to be an effective tool to improve postural control (PC) in older community-dwelling individuals. The outcome measures (OMs) used to assess PC are varied and this could limit the estimation of the effectiveness of the intervention. This systematic review and meta-analysis aims to explore the OMs currently used to assess PC in exergaming interventions, for healthy elderly individuals aged over 60 years. The literature search was conducted across five databases (CINAHL, EMBASE, PubMed, ISI, SPORTdiscus and Science Direct) using a range of search terms and combinations relating to exergaming, balance, exercise, falls and elderly...
April 2017: Maturitas
https://www.readbyqxmd.com/read/28258920/odontogenic-sinusitis-maxillaris-a-retrospective-study-of-121-cases-with-surgical-intervention
#19
Matthias Zirk, Timo Dreiseidler, Matthias Pohl, Daniel Rothamel, Johannes Buller, Franziska Peters, Joachim E Zöller, Matthias Kreppel
PURPOSE: Otolaryngologists, dentists and maxilla-facial surgeons see patients suffering from odontogenic maxillary sinusitis on a daily routine. The study was performed to investigate the different origins of the odontogenic maxillary sinusitis ranging from periodontitis to augmentative implant surgery. Furthermore, the microbial flora of purulent odontogenic maxillary sinusitis was analyzed in order to present a proper antibiotic treatment in addition to a surgical approach. MATERIALS AND METHODS: A retrospective study was performed, analyzing the clinical trials of 121 patients suffering from odontogenic maxillary sinusitis who undergone surgery...
February 4, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28248522/interfacial-nanostructure-and-asymmetric-electrowetting-of-ionic-liquids
#20
Zhen Liu, Tong Cui, GuoZhu Li, Frank Endres
In this work, the interfacial nanostructure and electrowetting of ionic liquids having the same 1-ethyl-3-methylimidazolium cation ([EMIm](+)) but different anions such as bis(trifluoromethylsulfonyl)imide (TFSI(-)), trifluoromethylsulfonate (TfO(-)), methylsulfonate (OMs(-)), acetate (OAc(-)), bis(fluorosulfonyl)imide (FSI(-)), dicyanamide (DCA(-)), and tris(pentafluorethyl)trifluorphosphat (FAP(-)) on bare metallic electrodes were investigated. In the investigated voltammetric potential regime, the contact angle versus voltage curve is asymmetric with respect to surface polarity...
March 9, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
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