Results 41 to 50 of about 27,803 (292)

Oral, nasal and pharyngeal exposure to lipopolysaccharide causes a fetal inflammatory response in sheep. [PDF]

, 2015
BackgroundA fetal inflammatory response (FIR) in sheep can be induced by intraamniotic or selective exposure of the fetal lung or gut to lipopolysaccharide (LPS).
Jobe, Alan H, Kallapur, Suhas G, Kannan, Paranthaman Senthamarai, Kemp, Matthew W, Kramer, Boris W, Maneenil, Gunlawadee, Newnham, John P, Saito, Masatoshi   +7 more
core   +3 more sources

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

Advanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh, Shashank Deepak Prabhu, Jannik Huber, Lioba Fischer, Gerhard Wolf, Nico Hempel, Peter Mayr   +6 more
wiley   +1 more source

Safety of the surgeon: ‘Double-gloving’ during surgical procedures

Southern African Journal of HIV Medicine, 2014
Background. In the face of increasing HIV/AIDS prevalence in subSaharan Africa, we evaluate the effectiveness of ‘double-gloving’ during surgery as a means of protecting the surgeon operating on patients with a known or unknown HIV status.Methods.
O. A. Arowolo, E. A. Agbakwuru, G. C. Obonna, C. U. Onyia, A. A. Akinkuolie, J. G. Olaogun   +5 more
doaj   +1 more source

Characterizing the gut microbiome in trauma: significant changes in microbial diversity occur early after severe injury. [PDF]

, 2017
Background:Recent studies have demonstrated the vital influence of commensal microbial communities on human health. The central role of the gut in the response to injury is well described; however, no prior studies have used culture-independent profiling
Calfee, Carolyn S, Callcut, Rachael A, Campion, Eric M, Christie, Sabrinah A, Cohen, Mitchell Jay, Conroy, Amanda S, Fadrosh, Douglas W, Howard, Benjamin M, Kornblith, Lucy Z, Lamere, Brandon J, Lynch, Susan, Nelson, Mary F   +11 more
core   +1 more source

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann, Berend Denkena, Hilke Petersen, Florian Schaper   +3 more
wiley   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Hepatitis B immunisation : a survey of surgeons and theatre nurses [PDF]

, 2000
Acute viral hepatitis remains a serious condition. Its long-term sequelae include cirrhosis and hepatocellular carcinoma. Health workers constitute a high-risk group for contracting hepatitis B.
Borg, Michael Angelo, Caruana Dingli, Gordon, Jones, C. H., Swain, Karl Charles   +3 more
core  

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Widening the scope of virtual reality and augmented reality in dermatology [PDF]

, 2020
Virtual reality (VR) and augmented reality (AR) are making headlines, pushing the boundaries of educational experiences and applicability in a variety of fields. Medicine has seen a rapid growth of utilization of these devices for various educational and
Dellavalle, Robert P, Obagi, Zaidal A, Rundle, Chandler W   +2 more
core