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https://www.readbyqxmd.com/read/28524451/tris-perfluorotolyl-borane-a-boron-lewis-superacid
#1
Norbert Werner Mitzel, Jan Schwabedissen, Leif Körte, Marcel Soffner, Sebastian Blomeyer, Christian Reuter, Yury Vishnevskiy, Beate Neumann, Georg Stammler
Tris(tetrafluoro-4-(trifluoromethyl)phenyl)borane (BTolF) was prepared by reacting boron tribromide with tetrameric F3CC6F4-Cu(I). The latter was generated from F3CC6F4MgBr and copper(I) bromide. Lewis acidities of BTolF evaluated by the Gutmann-Beckett method and calculated fluoride ion affinities are 9 and 10%, respecttively, higher than that of tris(penta-fluorophenyl)borane (BCF) and even higher than that of SbF5. The molecular structures of BTolF and BCF were determined by gas electron diffraction, that of BTolF also by single crystal X-ray diffraction...
May 19, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28520491/firearm-related-laws-in-all-50-us-states-1991-2016
#2
Michael Siegel, Molly Pahn, Ziming Xuan, Craig S Ross, Sandro Galea, Bindu Kalesan, Eric Fleegler, Kristin A Goss
OBJECTIVES: To describe a new database containing detailed annual information on firearm-related laws in place in each of the 50 US states from 1991 to 2016 and to summarize key trends in firearm-related laws during this time period. METHODS: Using Thomson Reuters Westlaw data to access historical state statutes and session laws, we developed a database indicating the presence or absence of each of 133 provisions of firearm laws in each state over the 26-year period...
May 18, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28514174/implications-of-occupational-disorder-on-ion-mobility-in-li4ti5o12-battery-materials
#3
Hendrik Helge Helge Heenen, Christoph Scheurer, Karsten Reuter
Lithium-titanium-oxide (Li4Ti5O12, LTO) is unique among battery materials due to its exceptional cyclability and high rate capability. This performance is believed to derive at least partly from the occupational disorder introduced via mixed Li/Ti occupancy in the LTO spinel-like structure. We explore the vast configuration space accessible during high-temperature LTO synthesis by Monte Carlo sampling and indeed find lowest-energy structures to be characterized by a high degree of microscopic inhomogeneity...
May 17, 2017: Nano Letters
https://www.readbyqxmd.com/read/28512550/analysis-of-scientific-production-in-spanish-implantology
#4
Beatriz Tarazona, Antonio Vidal-Infer, Pablo Tarazona-Alvarez, Adolfo Alonso-Arroyo
BACKGROUND: The aim of the study was to quantify the scientific productivity of researchers, organizations, and regions in Spain that publish articles on implantology in dental journals indexed in Journal Citation Reports. MATERIAL AND METHODS: A search was conducted among the core collection of Thomson Reuters' Web of Science database, on the basis of its broad thematic and geographic coverage of health sciences. The search identified original articles - the main vehicle for the dissemination of research results...
May 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28511883/a-prostate-cancer-nimbosus-genomic-instability-and-schlap1-dysregulation-underpin-aggression-of-intraductal-and-cribriform-subpathologies
#5
Melvin L K Chua, Winnie Lo, Melania Pintilie, Jure Murgic, Emilie Lalonde, Vinayak Bhandari, Osman Mahamud, Anuradha Gopalan, Charlotte F Kweldam, Geert J L H van Leenders, Esther I Verhoef, Agnes Marije Hoogland, Julie Livingstone, Alejandro Berlin, Alan Dal Pra, Alice Meng, Junyan Zhang, Michèle Orain, Valérie Picard, Hélène Hovington, Alain Bergeron, Louis Lacombe, Yves Fradet, Bernard Têtu, Victor E Reuter, Neil Fleshner, Michael Fraser, Paul C Boutros, Theodorus H van der Kwast, Robert G Bristow
BACKGROUND: Intraductal carcinoma (IDC) and cribriform architecture (CA) represent unfavorable subpathologies in localized prostate cancer. We recently showed that IDC shares a clonal ancestry with the adjacent glandular adenocarcinoma. OBJECTIVE: We investigated for the co-occurrence of "aggression" factors, genomic instability and hypoxia, and performed gene expression profiling of these tumors. DESIGN, SETTING, AND PARTICIPANTS: A total of 1325 men were treated for localized prostate cancer from four academic institutions (University Health Network, CHU de Québec-Université Laval, Memorial Sloan Kettering Cancer Center [MSKCC], and Erasmus Medical Center)...
May 13, 2017: European Urology
https://www.readbyqxmd.com/read/28509730/american-college-of-critical-care-medicine-clinical-practice-parameters-for-hemodynamic-support-of-pediatric-and-neonatal-septic-shock
#6
Alan L Davis, Joseph A Carcillo, Rajesh K Aneja, Andreas J Deymann, John C Lin, Trung C Nguyen, Regina S Okhuysen-Cawley, Monica S Relvas, Ranna A Rozenfeld, Peter W Skippen, Bonnie J Stojadinovic, Eric A Williams, Tim S Yeh, Fran Balamuth, Joe Brierley, Allan R de Caen, Ira M Cheifetz, Karen Choong, Edward Conway, Timothy Cornell, Allan Doctor, Marc-Andre Dugas, Jonathan D Feldman, Julie C Fitzgerald, Heidi R Flori, James D Fortenberry, Ana Lia Graciano, Bruce M Greenwald, Mark W Hall, Yong Yun Han, Lynn J Hernan, Jose E Irazuzta, Elizabeth Iselin, Elise W van der Jagt, Howard E Jeffries, Saraswati Kache, Chhavi Katyal, Niranjan Tex Kissoon, Alexander A Kon, Martha C Kutko, Graeme MacLaren, Timothy Maul, Renuka Mehta, Fola Odetola, Kristine Parbuoni, Raina Paul, Mark J Peters, Suchitra Ranjit, Karin E Reuter-Rice, Eduardo J Schnitzler, Halden F Scott, Adalberto Torres, Jacki Weingarten-Abrams, Scott L Weiss, Jerry J Zimmerman, Aaron L Zuckerberg
OBJECTIVES: The American College of Critical Care Medicine provided 2002 and 2007 guidelines for hemodynamic support of newborn and pediatric septic shock. Provide the 2014 update of the 2007 American College of Critical Care Medicine "Clinical Guidelines for Hemodynamic Support of Neonates and Children with Septic Shock." DESIGN: Society of Critical Care Medicine members were identified from general solicitation at Society of Critical Care Medicine Educational and Scientific Symposia (2006-2014)...
June 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28509346/role-of-quantitative-p16-ink4a-mrna-assay-and-digital-reading-of-p16-ink4a-immunostained-sections-in-diagnosis-of-cervical-intraepithelial-neoplasia
#7
Nataša Vasiljević, Paul D Carter, Caroline Reuter, Rhian Warman, Adam R Brentnall, James R Carton, Jack Cuzick, Attila T Lorincz
Visual interpretation of cervical biopsies is subjective and variable, generally showing fair to moderate inter-reader agreement in distinguishing high from low grade cervical intraepithelial neoplasia (CIN). We investigated the performance of two objective p16 quantitative tests in comparison with visual assessment: 1) p16-mRNA assay and 2) digital analysis of sections stained for p16 protein. The primary analysis considered 232 high-risk HPV+ samples from diagnostic cervical specimens. A p16 RT-qPCR (p16-mRNA assay) was run on mRNA extracted from formalin-fixed paraffin-embedded sections...
May 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28503775/contemporary-psychology-and-women-a-gender-analysis-of-the-scientific-production
#8
Julio González-Álvarez, Teresa Cervera-Crespo
Despite important advances made in recent decades, women are still underrepresented in science (less than 30% of authorships). This study presents a bibliometric analysis of all the Psychology articles published in 2009 included in the Web of Science database (Thomson Reuters) in order to examine the contribution of women in contemporary Psychology, their pattern of research collaboration, the scientific content and the scientific impact from a gender perspective. From a total of 90,067 authorships, gender could be identified in 74,413 (82...
May 15, 2017: International Journal of Psychology: Journal International de Psychologie
https://www.readbyqxmd.com/read/28500443/genome-characterization-of-a-novel-megrivirus-related-avian-picornavirus-from-a-carnivorous-wild-bird-western-marsh-harrier-circus-aeruginosus
#9
Ákos Boros, Péter Pankovics, Róbert Mátics, Ádám Adonyi, Nóra Bolba, Tung Gia Phan, Eric Delwart, Gábor Reuter
In this study, the complete genome of a novel picornavirus called harrier picornavirus 1 (HaPV-1) strain harrier/MR-01/HUN/2014 (KY488458) was sequenced and analysed from a cloacal sample of a threatened, carnivorous wild bird, western marsh harrier (Circus aeruginosus). HaPV-1 was detectable from 2 of the 3 samples from harriers. HaPV-1 is phylogenetically related to megriviruses (genus Megrivirus) from domestic chicken, turkey and duck, showing a similar genome organization pattern; it also has an avian picornavirus-like "Unit A" motif in the 3' UTR...
May 12, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28494213/tumor-like-microenvironment-in-oral-lichen-planus-evidence-of-malignant-transformation
#10
Qiao Peng, Jing Zhang, Xiaojing Ye, Gang Zhou
Oral lichen planus (OLP) is a T-cell-mediated chronic inflammatory autoimmune disease affecting 0.1% to 4% of the world population. The WHO has already recognized it as an oral potentially malignant disorder. However, the reasons for the malignant transformation of OLP are far from being elucidated clearly. The purpose of this review is to clarify how the tumor-like microenvironment in OLP mediates its potentially malignant transformation. Areas covered: We review published articles on the microenvironment characteristics of tumors, the pathogenesis of OLP, and clinical studies of OLP...
June 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/28490455/speckle-tracking-echocardiography-in-acute-lupus-myocarditis-comparison-to-conventional-echocardiography
#11
Riëtte du Toit, Phillip G Herbst, Annari van Rensburg, Hendrik W Snyman, Helmuth Reuter, Anton F Doubell
AIMS: Lupus myocarditis occurs in 5-10% of patients with systemic lupus erythematosus (SLE). No single feature is diagnostic of lupus myocarditis. Speckle tracking echocardiography (STE) can detect sub-clinical left ventricular dysfunction in SLE patients, with limited research on its utility in clinical lupus myocarditis. We report on STE in comparison to conventional echocardiography in patients with clinical lupus myocarditis. METHODS AND RESULTS: A retrospective study was done at a tertiary referral hospital in South Africa...
May 10, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28489614/validation-of-innovative-techniques-for-monitoring-nociception-during-general-anesthesia-a-clinical-study-using-tetanic-and-intracutaneous-electrical-stimulation
#12
Sandra Funcke, Sven Sauerlaender, Hans O Pinnschmidt, Bernd C Saugel, Kai Bremer, Daniel A Reuter, Rainer Nitzschke
BACKGROUND: This study compares the analgesic indices Analgesia Nociception Index (heart rate variability), Surgical Pleth Index (photoplethysmography), and pupillary dilatation, to heart rate, mean arterial pressure, and bispectral index, with regard to diagnostic accuracy and prediction probability for nociceptive response. The primary endpoint was the correlation between Δ values and the remifentanil dose administered. METHODS: We anesthetized 38 patients with propofol and increasing doses of remifentanil and applied standardized tetanic and intracutaneous electrical painful stimulations on each analgesic level...
May 10, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28489074/analysis-of-renal-cancer-cell-lines-from-two-major-resources-enables-genomics-guided-cell-line-selection
#13
Rileen Sinha, Andrew G Winer, Michael Chevinsky, Christopher Jakubowski, Ying-Bei Chen, Yiyu Dong, Satish K Tickoo, Victor E Reuter, Paul Russo, Jonathan A Coleman, Chris Sander, James J Hsieh, A Ari Hakimi
The utility of cancer cell lines is affected by the similarity to endogenous tumour cells. Here we compare genomic data from 65 kidney-derived cell lines from the Cancer Cell Line Encyclopedia and the COSMIC Cell Lines Project to three renal cancer subtypes from The Cancer Genome Atlas: clear cell renal cell carcinoma (ccRCC, also known as kidney renal clear cell carcinoma), papillary (pRCC, also known as kidney papillary) and chromophobe (chRCC, also known as kidney chromophobe) renal cell carcinoma. Clustering copy number alterations shows that most cell lines resemble ccRCC, a few (including some often used as models of ccRCC) resemble pRCC, and none resemble chRCC...
May 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28485389/egfr-dependent-tor-independent-endocycles-support-drosophila-gut-epithelial-regeneration
#14
Jinyi Xiang, Jennifer Bandura, Peng Zhang, Yinhua Jin, Hanna Reuter, Bruce A Edgar
Following gut epithelial damage, epidermal growth factor receptor/mitogen-activated protein kinase (EGFR/MAPK) signalling triggers Drosophila intestinal stem cells to produce enteroblasts (EBs) and enterocytes (ECs) that regenerate the gut. As EBs differentiate into ECs, they become postmitotic, but undergo extensive growth and DNA endoreplication. Here we report that EGFR/RAS/MAPK signalling is required and sufficient to drive damage-induced EB/EC growth. Endoreplication occurs exclusively in EBs and newborn ECs that inherit EGFR and active MAPK from fast-dividing progenitors...
May 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28480055/feasibility-of-common-bibliometrics-in-evaluating-translational-science
#15
M Schneider, C M Kane, J Rainwater, L Guerrero, G Tong, S R Desai, W Trochim
INTRODUCTION: A pilot study by 6 Clinical and Translational Science Awards (CTSAs) explored how bibliometrics can be used to assess research influence. METHODS: Evaluators from 6 institutions shared data on publications (4202 total) they supported, and conducted a combined analysis with state-of-the-art tools. This paper presents selected results based on the tools from 2 widely used vendors for bibliometrics: Thomson Reuters and Elsevier. RESULTS: Both vendors located a high percentage of publications within their proprietary databases (>90%) and provided similar but not equivalent bibliometrics for estimating productivity (number of publications) and influence (citation rates, percentage of papers in the top 10% of citations, observed citations relative to expected citations)...
February 2017: J Clin Transl Sci
https://www.readbyqxmd.com/read/28479476/high-resolution-magnetic-resonance-imaging-reveals-nuclei-of-the-human-amygdala-manual-segmentation-to-automatic-atlas
#16
Z M Saygin, D Kliemann, J E Iglesias, A J W van der Kouwe, E Boyd, M Reuter, A Stevens, K Van Leemput, A McKee, M P Frosch, B Fischl, J C Augustinack
The amygdala is composed of multiple nuclei with unique functions and connections in the limbic system and to the rest of the brain. However, standard in vivo neuroimaging tools to automatically delineate the amygdala into its multiple nuclei are still rare. By scanning postmortem specimens at high resolution (100-150µm) at 7T field strength (n = 10), we were able to visualize and label nine amygdala nuclei (anterior amygdaloid, cortico-amygdaloid transition area; basal, lateral, accessory basal, central, cortical medial, paralaminar nuclei)...
May 4, 2017: NeuroImage
https://www.readbyqxmd.com/read/28475326/spectrophotometric-analysis-of-phenolic-compounds-in-grapes-and-wines
#17
Jose Luis Aleixandre-Tudo, Astrid Buica, Helene Nieuwoudt, Jose Luis Aleixandre, Wessel du Toit
Phenolic compounds are of crucial importance for red wine color and mouthfeel attributes. A large number of enzymatic and chemical reactions involving phenolic compounds take place during winemaking and aging. Despite the large number of published analytical methods for phenolic analyses, the values obtained may vary considerably. In addition, the existing scientific knowledge needs to be updated, but also critically evaluated and simplified for newcomers and wine industry partners. The most used and widely cited spectrophotometric methods for grape and wine phenolic analysis were identified through a bibliometric search using the Science Citation Index-Expanded (SCIE) database accessed through the Web of Science (WOS) platform from Thompson Reuters...
May 16, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28464436/crown-ether-complexes-of-alkali-metal-chlorides-from-so2
#18
Kirsten Reuter, Stefan S Rudel, Magnus R Buchner, Florian Kraus, Carsten Von Hänisch
The structures of the alkali metal chloride SO 2 solvates (Li - Cs) in conjunction with 12-crown-4 or 1,2-disila-12-crown-4 show strong discrepancies, despite the structural similarity of the ligands. With LiCl both types of crown ethers form 1:1 complexes and give [Li(1,2-disila-12-crown-4)(SO 2 Cl)] (1) and [Li(12-crown-4)Cl]·4SO 2 (2). 1,2-disila-12-crown-4 turned out to be unable to coordinate cations too large for the cavity diameter, for example under formation of sandwich-type complexes. As a result, exclusively 12-crown-4 reacts with the heavier alkali metal chlorides NaCl, KCl and RbCl...
May 2, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28460892/safety-and-efficacy-of-erenumab-for-preventive-treatment-of-chronic-migraine-a-randomised-double-blind-placebo-controlled-phase-2-trial
#19
Stewart Tepper, Messoud Ashina, Uwe Reuter, Jan L Brandes, David Doležil, Stephen Silberstein, Paul Winner, Dean Leonardi, Daniel Mikol, Robert Lenz
BACKGROUND: The calcitonin gene-related peptide (CGRP) pathway is important in migraine pathophysiology. We assessed the efficacy and safety of erenumab, a fully human monoclonal antibody against the CGRP receptor, in patients with chronic migraine. METHODS: This was a phase 2, randomised, double-blind, placebo-controlled, multicentre study of erenumab for adults aged 18-65 years with chronic migraine, enrolled from 69 headache and clinical research centres in North America and Europe...
April 28, 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28451465/intimate-partner-violence-victimization-in-lgbt-young-adults-demographic-differences-and-associations-with-health-behaviors
#20
Tyson R Reuter, Michael E Newcomb, Sarah W Whitton, Brian Mustanski
OBJECTIVE: Intimate partner violence (IPV) is an important public health problem with high prevalence and serious costs. Although literature has largely focused on IPV among heterosexuals, studies have recently begun examining IPV in LGBT samples, with mounting evidence suggesting IPV may be more common among LGBT individuals than heterosexuals. Less research has examined the specific health consequences of IPV in this population, particularly across time and among young people, and it remains unclear whether experiences of IPV differ between subgroups within the LGBT population (e...
January 2017: Psychology of Violence
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