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https://www.readbyqxmd.com/read/29457868/exploring-acceptability-of-oral-prep-prior-to-implementation-among-female-sex-workers-in-south-africa
#1
Robyn Eakle, Adam Bourne, Judie Mbogua, Nyaradzo Mutanha, Helen Rees
INTRODUCTION: Female sex workers (FSWs) are at high-risk for HIV acquisition in South Africa, where the advent of new HIV prevention and treatment interventions represent the potential to significantly impact the epidemic. This paper focuses on aspects of PrEP acceptability as a new intervention within the context of a larger service delivery programme including the simultaneous rollout of early ART. This paper explores PrEP acceptability among the FGD participants as future potential users...
February 2018: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/29457246/randomized-controlled-prospective-clinical-trial-of-autologous-greater-omentum-free-graft-versus-autogenous-cancellous-bone-graft-in-radial-and-ulnar-fractures-in-miniature-breed-dogs
#2
Jennifer J Ree, Wendy I Baltzer, Sarah Nemanic
OBJECTIVE: To determine the rate of radiographic healing, complications, vascularization, and bone density after repair of radial and ulnar fractures in dogs <6 kg that were treated with an autogenous cancellous bone graft (BG) or free autologous omentum graft (OG). STUDY DESIGN: Prospective, randomized, controlled clinical trial with owners/radiologists blinded to treatment. ANIMALS: 25 dogs with naturally occurring traumatic radial/ulnar fractures...
February 19, 2018: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29457169/tracking-mitochondrial-ph-fluctuation-during-cell-apoptosis-with-two-photon-phosphorescent-iridium-iii-complexes
#3
Kangqiang Qiu, Libing Ke, Xuepeng Zhang, Yukang Liu, Thomas W Rees, Liangnian Ji, Jiajie Diao, Hui Chao
Two iridium(iii) complexes with ligands containing morpholine groups were used to track mitochondrial pH fluctuation during cell apoptosis as their emissive intensities linearly increased with increase in pH values.
February 19, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29456283/la-ce-isotope-measurements-by-multicollector-icpms
#4
Christiane Schnabel, Carsten Münker, Erik Strub
The138 La-138 Ce decay system (half-life 1.02 × 1011 years) is a potentially highly useful tool to unravel information about the timing of geological processes and about the interaction of geological reservoirs on earth, complementing information from the more popular147 Sm-143 Nd and176 Lu-176 Hf isotope systems. Previously published analytical protocols were limited to TIMS. Here we present for the first time an analytical protocol that employs MC-ICPMS, with an improved precision and sensitivity. To perform sufficiently accurate La-Ce measurements, an efficient ion-chromatographic procedure is required to separate Ce from the other rare earth elements (REE) and Ba quantitatively...
December 1, 2017: Journal of Analytical Atomic Spectrometry
https://www.readbyqxmd.com/read/29454818/comprehensive-characterization-of-printed-circuit-boards-of-various-end-of-life-electrical-and-electronic-equipment-for-beneficiation-investigation
#5
Anshu Priya, Subrata Hait
Comprehensive characterization of printed circuit board (PCB) of end-of-life electrical and electronic equipment (EEE) is obligatory for prospective profitable beneficiation. In this study, beneficiation oriented comprehensive characterization of two brands of PCBs each of 16 end-of-life EEE was conducted in terms of their physicochemical characteristics with special emphasis on the content of 16 general elements, 2 precious metals and 15 rare earth elements (REEs). General elements and their highest weight percent composition found in different PCBs of the EEEs were Cu (23% in laptop), Al (6% in computer), Pb (15% in DVD player) and Ba (7% in TV)...
February 14, 2018: Waste Management
https://www.readbyqxmd.com/read/29453257/a-facile-arsenazo-iii-based-assay-for-monitoring-rare-earth-element-depletion-from-cultivation-media-of-methanotrophic-and-methylotrophic-bacteria
#6
Carmen Hogendoorn, Paula Roszczenko-Jasińska, N Cecilia Martinez-Gomez, Johann de Graaff, Patrick Grassl, Arjan Pol, Huub J M Op den Camp, Lena J Daumann
Recently, methanotrophic and methylotrophic bacteria were found to utilize rare earth elements (REE). To monitor the REE-content in culture media of these bacteria we have developed a rapid screening method using the Arsenazo III (AS III) dye for spectrophotometric REE-detection in the low μM (0.1-10 μM) range. We designed this assay to follow La III and Eu III depletion from the culture medium by the acidophilic verrucomicrobial methanotroph Methylacidiphilum fumariolicum SolV. The assay can also be modified to screen the uptake of other REE such as Pr III or to monitor the depletion of La III from growth media in neutrophilic methylotrophs such as Methylobacterium extorquens AM1...
February 16, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29453013/aermod-as-a-gaussian-dispersion-model-for-planning-tracer-gas-dispersion-tests-for-landfill-methane-emission-quantification
#7
F Matacchiera, C Manes, R P Beaven, T C Rees-White, F Boano, J Mønster, C Scheutz
The measurement of methane emissions from landfills is important to the understanding of landfills' contribution to greenhouse gas emissions. The Tracer Dispersion Method (TDM) is becoming widely accepted as a technique, which allows landfill emissions to be quantified accurately provided that measurements are taken where the plumes of a released tracer-gas and landfill-gas are well-mixed. However, the distance at which full mixing of the gases occurs is generally unknown prior to any experimental campaign...
February 13, 2018: Waste Management
https://www.readbyqxmd.com/read/29444759/current-management-of-pelvic-organ-prolapse-in-aging-women
#8
Andrea Giannini, Eleonora Russo, Antonio Cano, Peter Chedraui, Dimitrios G Goulis, Irene Lambrinoudaki, Patrice Lopes, Gita Mishra, Alfred Mueck, Margaret Rees, Levent M Senturk, John C Stevenson, Petra Stute, Pauliina Tuomikoski, Tommaso Simoncini
Management of pelvic organ prolapse (POP) is a common and challenging task. Nowadays older women are more active than they were in the past, and the development of POP disrupts quality of life and impairs social and personal activities. The menopausal transition is a time of vulnerability, during which many women start experiencing symptoms and signs of POP. The role of hormonal changes or of hormonal therapies in influencing the development or progression of POP has been explored extensively. The management of POP requires considerable clinical skills...
February 6, 2018: Maturitas
https://www.readbyqxmd.com/read/29444047/homographically-generated-light-sheets-for-the-microscopy-of-large-specimens
#9
Craig T Russell, Eric J Rees, Clemens F Kaminski
We compare the performance of linear and nonlinear methods for aligning the excitation and detection planes throughout volumes of large specimens in digitally scanned light sheet microscopy. An effective nonlinear method involves the registration of four corner extrema of the imaging volume via a projective transform. We show that this improves the light collection efficiency of the commonly used three-point affine registration by an average of 42% over a typical specimen volume. Accurate illumination/detection registration methods are now pertinent to biological research in view of current trends towards imaging large or expanded samples, at depth, with diffraction limited resolution...
February 15, 2018: Optics Letters
https://www.readbyqxmd.com/read/29441374/combining-single-source-chemical-vapour-deposition-precursors-to-explore-the-phase-space-of-titanium-oxynitride-thin-films
#10
Kelly Rees, Emanuela Lorusso, Samuel D Cosham, Alexander N Kulak, Geoffrey Hyett
In this paper we report on a novel chemical vapour deposition approach to the formation and control of composition of mixed anion materials, as applied to titanium oxynitride thin films. The method used is the aerosol assisted chemical vapour deposition (AACVD) of a mixture of single source precursors. To explore the titanium-oxygen-nitrogen system the single source precursors selected were tetrakis(dimethylamido) titanium and titanium tetraisopropoxide which individually are precursors to thin films of titanium nitride and titanium dioxide respectively...
February 14, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29440616/william-howard-guest-rees
#11
Keith Meldrum, Bill Watson
A distinguished vet who became the UK's chief veterinary officer, dealing with issues such as salmonella in eggs and bovine spongiform encephalopathy. His passions were his family and rugby.
February 10, 2018: Veterinary Record
https://www.readbyqxmd.com/read/29438589/baus-consensus-document-for-the-management-of-male-genital-emergencies-penile-fracture
#12
REVIEW
R W Rees, G Brown, T Dorkin, M Lucky, R Pearcy, M Shabbir, C J Shukla, D J Summerton, A Muneer
Male genital emergencies relating to the penis and scrotum are rare and require prompt investigation and surgical intervention. Clinicians are often unfamiliar with the management of these conditions and may not work in a specialist centre with on-site expertise in genitourethral surgery available. The aim of these consensus statements is to provide a best practice guidance for urological surgeons based in the UK and developed by an expert consensus. Penile fracture is a rare emergency and in the majority of cases requires prompt exploration and repair to prevent erectile dysfunction and penile curvature...
February 13, 2018: BJU International
https://www.readbyqxmd.com/read/29437638/-g-hbf-a-genetic-model-of-fetal-hemoglobin-in-sickle-cell-disease
#13
Kate Gardner, Tony Fulford, Nicholas Silver, Helen Rooks, Nikolaos Angelis, Marlene Allman, Siana Nkya, Julie Makani, Jo Howard, Rachel Kesse-Adu, David C Rees, Sara Stuart-Smith, Tullie Yeghen, Moji Awogbade, Raphael Z Sangeda, Josephine Mgaya, Hamel Patel, Stephen Newhouse, Stephan Menzel, Swee Lay Thein
Fetal hemoglobin (HbF) is a strong modifier of sickle cell disease (SCD) severity and is associated with 3 common genetic loci. Quantifying the genetic effects of the 3 loci would specifically address the benefits of HbF increases in patients. Here, we have applied statistical methods using the most representative variants: rs1427407 and rs6545816 in BCL11A , rs66650371 (3-bp deletion) and rs9376090 in HMIP-2A , rs9494142 and rs9494145 in HMIP-2B , and rs7482144 ( Xmn 1- HBG2 in the β-globin locus) to create g(HbF ) , a genetic quantitative variable for HbF in SCD...
February 13, 2018: Blood Advances
https://www.readbyqxmd.com/read/29437610/optimization-of-a-meropenem-plus-tobramycin-combination-dosage-regimen-against-hypermutable-and-non-hypermutable-pseudomonas-aeruginosa-via-mechanism-based-modeling-and-the-hollow-fiber-infection-model
#14
Cornelia B Landersdorfer, Vanessa E Rees, Rajbharan Yadav, Kate E Rogers, Tae Hwan Kim, Phillip J Bergen, Soon-Ee Cheah, John D Boyce, Anton Y Peleg, Antonio Oliver, Beom Soo Shin, Roger L Nation, Jürgen B Bulitta
Objectives: Hypermutable Pseudomonas aeruginosa are prevalent in patients with cystic fibrosis and rapidly become resistant to antibiotic monotherapies. Combination dosage regimens have not been optimized against such strains using mechanism-based modeling (MBM) and the hollow-fiber infection model (HFIM). Methods: The PAO1 wild-type strain and its isogenic hypermutable PAOΔ mutS strain (MIC meropenem 1.0 mg/liter, MIC tobramycin 0.5 mg/liter, for both) were assessed using 96-h static concentration time-kill studies (SCTK) and 10-day HFIM studies (inoculum ∼10 8...
February 5, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29435400/encapsulation-of-cadmium-selenide-nanocrystals-in-biocompatible-nanotubes-dft-calculations-x-ray-diffraction-investigations-and-confocal-fluorescence-imaging
#15
David G Calatayud, Haobo Ge, Navaratnarajah Kuganathan, Vincenzo Mirabello, Robert M J Jacobs, Nicholas H Rees, Craig T Stoppiello, Andrei N Khlobystov, Rex M Tyrrell, Enrico Da Como, Sofia I Pascu
The encapsulation of CdSe nanocrystals within single-walled carbon nanotube (SWNT) cavities of varying dimensions at elevated temperatures under strictly air-tight conditions is described for the first time. The structures of CdSe nanocrystals under confinement inside SWNTs was established in a comprehensive study, combining both experimental and DFT theoretical investigations. The calculated binding energies show that all considered polymorphs [(3:3), (4:4), and (4:2)] may be obtained experimentally. The most thermodynamically stable structure (3:3) is directly compared to the experimentally observed CdSe structures inside carbon nanotubes...
February 2018: ChemistryOpen
https://www.readbyqxmd.com/read/29431718/biosorption-of-praseodymium-iii-using-terminalia-arjuna-bark-powder-in-batch-systems-isotherm-and-kinetic-studies
#16
Krishna Kumari Swain, Pravat Manjari Mishra, Aparna Prabha Devi
The high demand for rare earth elements (REEs) used in various advanced materials implies demand for increased production of REEs or the recycling of solutions to recover the REEs they contain. In this study, the biosorption of Pr(III) from aqueous solution by bark powder of Terminalia arjuna was examined in a batch system as a function of metal concentration, biosorbent dosage, pH and contact time. Results showed that T. arjuna bark powder has a high affinity for adsorbing Pr(III): more than 90% at pH 6.63...
February 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/29426231/the-impact-of-route-of-diagnosis-on-survival-in-patients-with-glioblastoma
#17
Michael Kosmin, Francesca Solda', Elena Wilson, Neil Kitchen, Jeremy Rees, Naomi Fersht
INTRODUCTION: The standard of care for glioblastoma is maximal debulking surgery followed by chemo-radiotherapy (CRT). Published data show worse outcomes for patients who present with GBM as an emergency. This study investigates prognostic factors in a cohort of GBM patients treated with postoperative CRT, and compares outcomes in patients who present via emergency pathways with those who present through outpatient clinics. METHODS: Patients with GBM operated on between 1 April 2010 and 5 October 2015 and then treated with postoperative CRT were included in the study...
February 9, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29425197/how-the-microbiome-challenges-our-concept-of-self
#18
Tobias Rees, Thomas Bosch, Angela E Douglas
Today, the three classical biological explanations of the individual self--the immune system, the brain, the genome--are being challenged by the new field of microbiome research. Evidence shows that our resident microbes orchestrate the adaptive immune system, influence the brain, and contribute more gene functions than our own genome. The realization that humans are not individual, discrete entities but rather the outcome of ever-changing interactions with microorganisms has consequences beyond the biological disciplines...
February 9, 2018: PLoS Biology
https://www.readbyqxmd.com/read/29421757/rare-earth-elements-profile-in-a-cultivated-and-non-cultivated-soil-determined-by-laser-ablation-inductively-coupled-plasma-mass-spectrometry
#19
Vinicius M Neves, Graciela M Heidrich, Flavia B Hanzel, Edson I Muller, Valderi L Dressler
Rare earth elements (REEs) have several applications but the effects on environment are not well known. Therefore, the aim of this work is to establish a method for direct solid sample analysis by laser ablation-inductively coupled plasma mass spectrometry (LA-ICP-MS) to evaluate the concentration and distribution of REEs in cultivated and non-cultivated soil. Samples were collected in two areas to 40 cm of depth. The LA-ICP-MS method is easy to be implemented and the sample treatment is very fast comprising only its drying, grounding and pressing as a pellet...
February 3, 2018: Chemosphere
https://www.readbyqxmd.com/read/29420940/triethylamine-assisted-mg-oh-2-coprecipitation-preconcentration-for-determination-of-trace-metals-and-rare-earth-elements-in-seawater-by-inductively-coupled-plasma-mass-spectrometry-icp-ms
#20
Zikri Arslan, Tulay Oymak, Jeremy White
In this paper, we report an improved magnesium hydroxide, Mg(OH)2, coprecipitation method for the determination of 16 trace elements (Al, V, Cr, Mn, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Sb, Sn and Pb) and 18 rare earth elements (REEs), including Sc, Y, U and Th in seawater and estuarine water samples. The procedure involves coprecipitation of the trace elements and REEs on Mg(OH)2 upon addition of a small volume of triethylamine (TEA) followed by analysis of the dissolved pellet solutions by inductively coupled plasma mass spectrometry (ICP-MS)...
May 30, 2018: Analytica Chimica Acta
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