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Hall power

Katarina Cheng, Ribal Bassil, Raphael Carandang, Wiley Hall, Susanne Muehlschlegel
The Glasgow Coma Scale (GCS) has limited utility in intubated patients due to the inability to assign verbal sub-scores. The verbal sub-score can be derived from the eye and motor sub-scores using a mathematical model, but the advantage of this method and its use in outcome prognostication in traumatic brain injury (TBI) patients remains unknown. We compared the validated "Core+CT"-IMPACT-model performance in 251 intubated TBI patients prospectively enrolled in the longitudinal OPTIMISM-study between November 2009 and May 2015 when substituting the original motor GCS with the total estimated GCS (teGCS; with estimated verbal sub-score)...
October 22, 2016: Journal of Neurotrauma
Jesse Mez, Jaeyoon Chung, Gyungah Jun, Joshua Kriegel, Alexandra P Bourlas, Richard Sherva, Mark W Logue, Lisa L Barnes, David A Bennett, Joseph D Buxbaum, Goldie S Byrd, Paul K Crane, Nilüfer Ertekin-Taner, Denis Evans, M Daniele Fallin, Tatiana Foroud, Alison Goate, Neill R Graff-Radford, Kathleen S Hall, M Ilyas Kamboh, Walter A Kukull, Eric B Larson, Jennifer J Manly, Jonathan L Haines, Richard Mayeux, Margaret A Pericak-Vance, Gerard D Schellenberg, Kathryn L Lunetta, Lindsay A Farrer
INTRODUCTION: African Americans' (AAs) late-onset Alzheimer's disease (LOAD) genetic risk profile is incompletely understood. Including clinical covariates in genetic analyses using informed conditioning might improve study power. METHODS: We conducted a genome-wide association study (GWAS) in AAs employing informed conditioning in 1825 LOAD cases and 3784 cognitively normal controls. We derived a posterior liability conditioned on age, sex, diabetes status, current smoking status, educational attainment, and affection status, with parameters informed by external prevalence information...
October 19, 2016: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
Dennis G Hall, Taras Rybak, Tristan Verdelet
Multicomponent reactions (MCR), transformations employing three or more simple substrates in a single and highly atom-economical operation, are very attractive in both natural product synthesis and diversity-oriented synthesis of druglike molecules. Several popular multicomponent reactions were designed by combining two well-established individual reactions that utilize mutually compatible substrates. In this regard, it is not surprising that the merging of two reactions deemed as workhorses of stereoselective synthesis, the Diels-Alder cycloaddition and carbonyl allylboration, would produce a powerful and highly versatile tandem MCR process...
October 18, 2016: Accounts of Chemical Research
Alexander C Sun, Chengyang Yao, A G Venkatesh, Drew A Hall
Cellular phone penetration has grown continually over the past two decades with the number of connected devices rapidly approaching the total world population. Leveraging the worldwide ubiquity and connectivity of these devices, we developed a mobile phone-based electrochemical biosensor platform for point-of-care (POC) diagnostics and wellness tracking. The platform consists of an inexpensive electronic module (< $20) containing a low-power potentiostat that interfaces with and efficiently harvests power from a wide variety of phones through the audio jack...
November 1, 2016: Sensors and Actuators. B, Chemical
John Muscedere, David Maslove, John Gordon Boyd, Nicole O'Callaghan, Francois Lamontagne, Steven Reynolds, Martin Albert, Rick Hall, Danielle McGolrick, Xuran Jiang, Andrew G Day
BACKGROUND: Nosocomial infections remain an important source of morbidity, mortality, and increased health care costs in hospitalized patients. This is particularly problematic in intensive care units (ICUs) because of increased patient vulnerability due to the underlying severity of illness and increased susceptibility from utilization of invasive therapeutic and monitoring devices. Lactoferrin (LF) and the products of its breakdown have multiple biological effects, which make its utilization of interest for the prevention of nosocomial infections in the critically ill...
September 29, 2016: Trials
David P Hall, Lise J Estcourt, Carolyn Doree, Sally Hopewell, Marialena Trivella, Timothy S Walsh
BACKGROUND: The insertion of central venous catheters (CVCs) may be associated with peri- and post-procedural bleeding. People who require a central line often have disorders of coagulation as a result of their underlying illness, co-morbidities or the effects of treatment. Clinical practice in some institutions is to mitigate the risk of bleeding in these patients by prophylactically transfusing fresh frozen plasma (FFP) in order to correct clotting factor deficiencies prior to central line insertion...
September 20, 2016: Cochrane Database of Systematic Reviews
Christina N Krute, Kelsey L Krausz, Mary A Markiewicz, Jason A Joyner, Srijana Pokhrel, Pamela R Hall, Jeffrey L Bose
A major short-coming to plasmid-based genetic tools is the necessity of using antibiotics to ensure plasmid maintenance. While selectable markers are very powerful, this practice is not always practical, such as during in vivo models of bacterial infection. During previous studies, it was noted that the uncharacterized LAC-p01 plasmid in Staphylococcus aureus USA300 isolates was stable in the absence of a known selection, and therefore could serve as a platform for new genetic tools for Staphylococcus species...
September 16, 2016: Applied and Environmental Microbiology
Gregory J S Fowler, Ana G Pereira-Medrano, Stephen Jaffe, Grzegorz Pasternak, Trong Khoa Pham, Pablo Ledezma, Simon T E Hall, Ioannis A Ieropoulos, Phillip C Wright
Anodophilic bacteria have the ability to generate electricity in microbial fuel cells (MFCs) by extracellular electron transfer to the anode. We investigated the anode-specific responses of Shewanella oneidensis MR-1, an exoelectroactive Gammaproteobacterium, using for the first time iTRAQ and 2D-LC MS/MS driven membrane proteomics to compare protein abundances in S. oneidensis when generating power in MFCs, and growing in a continuous culture. The regulated dataset produced was enriched in membrane proteins...
September 7, 2016: Proteomics
Aaron Smith, John Calley, Sachin Mathur, Hui-Rong Qian, Han Wu, Mark Farmen, Florian Caiment, Pierre R Bushel, Jianying Li, Craig Fisher, Patrick Kirby, Erik Koenig, David G Hall, David E Watson
BACKGROUND: MicroRNAs (miRNA) are ~19-25 nucleotide long RNA molecules that fine tune gene expression through the inhibition of translation or degradation of the mRNA through incorporation into the RNA induced silencing complex (RISC). MicroRNAs are stable in the serum and plasma, are detectable in a wide variety of body fluids, are conserved across veterinary species and humans and are expressed in a tissue specific manner. They can be detected at low concentrations in circulation in animals and humans, generating interest in the utilization of miRNAs as serum and/or plasma based biomarkers of tissue injury...
2016: BMC Genomics
Dafna Merom, Erin Mathieu, Ester Cerin, Rachael L Morton, Judy M Simpson, Chris Rissel, Kaarin J Anstey, Catherine Sherrington, Stephen R Lord, Robert G Cumming
BACKGROUND: The prevention of falls among older people is a major public health challenge. Exercises that challenge balance are recognized as an efficacious fall prevention strategy. Given that small-scale trials have indicated that diverse dance styles can improve balance and gait of older adults, two of the strongest risk factors for falls in older people, this study aimed to determine whether social dance is effective in i) reducing the number of falls and ii) improving physical and cognitive fall-related risk factors...
August 2016: PLoS Medicine
Kara N Radzak, Jennifer J Wages, Kimberly E Hall, Cass K Nakasone
BACKGROUND: Controversy continues regarding the use of powerful anticoagulants for venous thromboembolism prophylaxis in patients undergoing total knee arthroplasty (TKA). To comply with institution-mandated guidelines and pressure from hospitalist intent on complying with conventionally recommended anticoagulation guidelines, we singularly changed our chemoprophylaxis practice from using aspirin to Lovenox and noted that transfusion rates increased substantially. METHODS: A retrospective case review was performed to evaluate transfusion requirement differences in primary TKA patients receiving Lovenox (unilateral TKA: n = 135, bilateral TKA: n = 44) or aspirin (unilateral TKA: n = 153, bilateral TKA: n = 45) for venous thromboembolism prophylaxis...
November 2016: Journal of Arthroplasty
Jiahao Han, Yuyan Wang, Feng Pan, Cheng Song
Antiferromagnet (AFM) spintronics with reduced electrical current is greatly expected to process information with high integration and low power consumption. In Pt/FeMn and Ta/FeMn hybrids, we observe significant resistance variation (up to 7% of the total resistance) manipulated by 10(5) A/cm(2) dc current. We have excluded the contribution of isotropic structural effects, and confirmed the critical role of the spin Hall injection from Pt (or Ta) to FeMn. This electrical current-manipulated resistance (i...
2016: Scientific Reports
Robert A Power, Katherine E Tansey, Henriette Nørmølle Buttenschøn, Sarah Cohen-Woods, Tim Bigdeli, Lynsey S Hall, Zoltán Kutalik, S Hong Lee, Stephan Ripke, Stacy Steinberg, Alexander Teumer, Alexander Viktorin, Naomi R Wray, Volker Arolt, Bernard T Baune, Dorret I Boomsma, Anders D Børglum, Enda M Byrne, Enrique Castelao, Nick Craddock, Ian W Craig, Udo Dannlowski, Ian J Deary, Franziska Degenhardt, Andreas J Forstner, Scott D Gordon, Hans J Grabe, Jakob Grove, Steven P Hamilton, Caroline Hayward, Andrew C Heath, Lynne J Hocking, Georg Homuth, Jouke J Hottenga, Stefan Kloiber, Jesper Krogh, Mikael Landén, Maren Lang, Douglas F Levinson, Paul Lichtenstein, Susanne Lucae, Donald J MacIntyre, Pamela Madden, Patrik K E Magnusson, Nicholas G Martin, Andrew M McIntosh, Christel M Middeldorp, Yuri Milaneschi, Grant W Montgomery, Ole Mors, Bertram Müller-Myhsok, Dale R Nyholt, Hogni Oskarsson, Michael J Owen, Sandosh Padmanabhan, Brenda W J H Penninx, Michele L Pergadia, David J Porteous, James B Potash, Martin Preisig, Margarita Rivera, Jianxin Shi, Stanley I Shyn, Engilbert Sigurdsson, Johannes H Smit, Blair H Smith, Hreinn Stefansson, Kari Stefansson, Jana Strohmaier, Patrick F Sullivan, Pippa Thomson, Thorgeir E Thorgeirsson, Sandra Van der Auwera, Myrna M Weissman, Gerome Breen, Cathryn M Lewis
BACKGROUND: Major depressive disorder (MDD) is a disabling mood disorder, and despite a known heritable component, a large meta-analysis of genome-wide association studies revealed no replicable genetic risk variants. Given prior evidence of heterogeneity by age at onset in MDD, we tested whether genome-wide significant risk variants for MDD could be identified in cases subdivided by age at onset. METHODS: Discovery case-control genome-wide association studies were performed where cases were stratified using increasing/decreasing age-at-onset cutoffs; significant single nucleotide polymorphisms were tested in nine independent replication samples, giving a total sample of 22,158 cases and 133,749 control subjects for subsetting...
May 24, 2016: Biological Psychiatry
James D Manton, Josephine A E Hughes, Oliver Bonner, Omar A Amjad, Philip Mair, Isabella Miele, Tiesheng Wang, Vitaly Levdik, Richard D Hall, Géraldine Baekelandt, Fernando da Cruz Vasconcellos, Oliver Hadeler, Tanya Hutter, Clemens F Kaminski
Many countries have a rapidly ageing population, placing strain on health services and creating a growing market for assistive technology for older people. We have, through a student-led, 12-week project for 10 students from a variety of science and engineering backgrounds, developed an integrated sensor system to enable older people, or those at risk, to live independently in their own homes for longer, while providing reassurance for their family and carers. We provide details on the design procedure and performance of our sensor system and the management and execution of a short-term, student-led research project...
August 6, 2016: Interface Focus
Matthew P Wallen, Tina L Skinner, Toby G Pavey, Adrian Hall, Graeme A Macdonald, Jeff S Coombes
BACKGROUND: Patients awaiting solid-organ transplantation may be encouraged to undertake exercise training to improve pre- and post-transplant outcomes. However, the safety, adherence and efficacy of exercise training in this population remain unclear. METHODS: All randomized, non-randomized and non-controlled trials of exercise training interventions in solid-organ transplant candidates were included. The Cochrane risk of bias tool and a modified Newcastle-Ottawa scale were used to assess procedural quality...
October 2016: Transplantation Reviews
Jeff Walter, Helin Wang, Bing Luo, C Daniel Frisbie, Chris Leighton
Recently, electrolyte gating techniques employing ionic liquids/gels in electric double layer transistors have proven remarkably effective in tuning charge carrier density in a variety of materials. The ability to control surface carrier densities at levels above 10(14) cm(-2) has led to widespread use in the study of superconductivity, insulator-metal transitions, etc. In many cases, controversy remains over the doping mechanism, however (i.e., electrostatic vs electrochemical (e.g., redox-based)), and the technique has been less applied to magnetic materials...
August 23, 2016: ACS Nano
Shreyas Potnis, Amar C Vutha
The Pound-Drever-Hall laser stabilization technique requires a fast, low-noise photodetector. We present a simple photodetector design that uses a transformer as an intermediary between a photodiode and cascaded low-noise radio-frequency amplifiers. Our implementation using a silicon photodiode yields a detector with 50 MHz bandwidth, gain >10(5) V/A, and input current noise <4 pA/Hz, allowing us to obtain shot-noise-limited performance with low optical power.
July 2016: Review of Scientific Instruments
Jooyoung Park, Ikjae Lee, Jaeyong Kim
Al-, Ga-, and In-doped ZnO thin films are widely used in many technical applications, such as in solar cells and on transparent conducting oxides having high optical transmission and low resistivity values. We prepared SnO2-doped ZnO thin films on quartz substrates by using an RF magnetron sputtering method at a substrate temperature of 350 degrees C. The ratio of SnO2 to ZnO was varied from 0 to 5:5 to investigate the effects of Sn on structure and physical properties of ZnO film. The samples were synthesized at a base pressure of 1...
March 2016: Journal of Nanoscience and Nanotechnology
Min Wook Jung, Wooseok Song, Dae Sung Jung, Sun Sook Lee, Chong-Yun Park, Ki-Seok An
The control in electrical properties of graphene is essentially required in order to realize graphenebased nanoelectronics. In this study, N-doped graphene was successfully obtained via nitrogen plasma treatment. Graphene was synthesized on copper foil using thermal chemical vapor deposition. After N2 plasma treatment, the G-band of the graphene was blueshifted and the intensity ratio of 2D- to G-bands decreased with increasing the plasma power. Pyrrolic-N bonding configuration induced by N2 plasma treatment was studied by X-ray photoelectron spectroscopy...
March 2016: Journal of Nanoscience and Nanotechnology
Junwen Li, Paul M Haney
Organic-inorganic halide CH3NH3PbI3 solar cells have attracted enormous attention in recent years due to their remarkable power conversion efficiency. When inversion symmetry is broken, these materials should exhibit interesting spin-dependent properties as well, owing to their strong spin-orbit coupling. In this work, we consider the spin-dependent optical response of CH3NH3PbI3. We first use density functional theory to compute the ballistic spin current generated by absorption of unpolarized light. We then consider diffusive transport of photogenerated charge and spin for a thin CH3NH3PbI3 layer with a passivated surface and an Ohmic, non-selective contact...
April 15, 2016: Physical Review. B
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