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Thomas Spray

Loïc Laurendon, Rémi Philippot, Thomas Neri, Bertrand Boyer, Frédéric Farizon
INTRODUCTION: The original cementless Sunfit® dual mobility cup (SERF, Décines, France) exhibited limited osseointegration due to its hydroxyapatite and alumina coating. We hypothesized that replacement of the alumina with plasma-sprayed titanium + hydroxyapatite and improvement of the external geometry (Sunfit TH®) would not increase the risk of aseptic loosening. The primary goal of this study was to determine the survivorship and clinical and radiological outcomes among patients with the Sunfit TH® implant...
April 23, 2018: Surgical Technology International
Bruno C Vieira, Thomas R Butts, Andre O Rodrigues, Jeffrey A Golus, Kasey Schroeder, Greg R Kruger
BACKGROUND: Herbicide particle drift reduces application efficacy and can cause severe impacts on nearby vegetation depending on the herbicide mode-of-action, exposure level, and tolerance to the herbicide. A particle drift mitigation effort placing windbreaks or barriers on the field boundaries to reduce off-target movement of spray particles has been utilized in the past. The objective of this research was to evaluate the effectiveness of field corn (Zea mays L.) at different heights as a particle drift barrier...
April 24, 2018: Pest Management Science
Jaya Mishra, Thomas Rades, Korbinian Löbmann, Holger Grohganz
Ball-milling is usually used to prepare co-amorphous drug-amino acid (AA) mixtures. In this study, co-amorphous drug-AA mixtures were produced using spray-drying, a scalable industrially preferred preparation method. The influence of the solvent type and solvent composition was investigated. Mixtures of indomethacin (IND) and each of the three AAs arginine, histidine, and lysine were ball-milled and spray-dried at a 1:1 molar ratio, respectively. Spray-drying was performed at different solvent ratios in (a) ethanol and water mixtures and (b) acetone and water mixtures...
April 12, 2018: Pharmaceutics
Christian E Gunning, Kenichi Okamoto, Helvio Astete, Gissella M Vasquez, Erik Erhardt, Clara Del Aguila, Raul Pinedo, Roldan Cardenas, Carlos Pacheco, Enrique Chalco, Hugo Rodriguez-Ferruci, Thomas W Scott, Alun L Lloyd, Fred Gould, Amy C Morrison
BACKGROUND: Aedes aegypti is a primary vector of dengue, chikungunya, Zika, and urban yellow fever viruses. Indoor, ultra low volume (ULV) space spraying with pyrethroid insecticides is the main approach used for Ae. aegypti emergency control in many countries. Given the widespread use of this method, the lack of large-scale experiments or detailed evaluations of municipal spray programs is problematic. METHODOLOGY/PRINCIPAL FINDINGS: Two experimental evaluations of non-residual, indoor ULV pyrethroid spraying were conducted in Iquitos, Peru...
April 6, 2018: PLoS Neglected Tropical Diseases
James Bishop, Thomas Routledge, David George Lidzey
Spray-coating is deposition technique that is widely used in industry, and could in principle be used to fabricate perovskite photovoltaic (PV) devices at low cost and at high volume. As with any deposition technique, the fabrication of thin-films requires the optimisation of a range of parameter space in order to control film uniformity and homogeneity. This is particularly important in PV fabrication, as the quality of the thin film has an important effect on device efficiency. This perspective summarises the developments in spray-cast perovskite solar cells made over the past few years, with particular attention paid to strategies employed to control the crystallisation of the perovskite...
April 2, 2018: Journal of Physical Chemistry Letters
Pengyun Xu, Thomas W Coyle, Larry Pershin, Javad Mostaghimi
HYPOTHESIS: Superhydrophobic surfaces are often created by fabricating suitable surface structures from low-surface-energy organic materials using processes that are not suitable for large-scale fabrication. Rare earth oxides (REO) exhibit hydrophobic behavior that is unusual among oxides. Solution precursor plasma spray (SPPS) deposition is a rapid, one-step process that can produce ceramic coatings with fine scale columnar structures. Manipulation of the structure of REO coatings through variation in deposition conditions may allow the wetting behavior to be controlled...
March 16, 2018: Journal of Colloid and Interface Science
J William Gaynor, Susan C Nicolson, Diane M Spray, Nancy B Burnham, Jesse L Chittams, Therese Sammarco, Kevin W Walsh, Thomas L Spray, Daniel J Licht
BACKGROUND: Remote ischemic preconditioning (RIPC) is a mechanism to protect tissues from injury during ischemia and reperfusion. We investigated the neuroprotective effects of RIPC in neonates undergoing cardiac surgery. METHODS: The outcome was white matter injury (WMI), assessed by the change in volume of WMI from preoperative to postoperative brain MRI. Subjects were randomized to RIPC or SHAM. RIPC was induced prior to cardiopulmonary bypass by four 5 minute cycles of blood pressure cuff inflation to produce ischemia of the lower extremity...
March 27, 2018: Annals of Thoracic Surgery
Ben Lambert, Maggy T Sikulu-Lord, Vale S Mayagaya, Greg Devine, Floyd Dowell, Thomas S Churcher
Mosquito control with bednets, residual sprays or fumigation remains the most effective tool for preventing vector-borne diseases such as malaria, dengue and Zika, though there are no widely used entomological methods for directly assessing its efficacy. Mosquito age is the most informative metric for evaluating interventions that kill adult mosquitoes but there is no simple or reliable way of measuring it in the field. Near-Infrared Spectroscopy (NIRS) has been shown to be a promising, high-throughput method that can estimate the age of mosquitoes...
March 27, 2018: Scientific Reports
Thomas R Butts, Chase A Samples, Lucas X Franca, Darrin M Dodds, Daniel B Reynolds, Jason W Adams, Richard K Zollinger, Kirk A Howatt, Bradley K Fritz, W Clint Hoffmann, Greg R Kruger
BACKGROUND: Pesticide applications using a specific droplet size and carrier volume could maximize herbicide efficacy while mitigating particle drift in a precise and efficient manner. The objectives were to investigate the influence of spray droplet size and carrier volume on dicamba and glufosinate efficacy, and to determine the plausibility of droplet size based site-specific weed management strategies. RESULTS: Generally, across herbicides and carrier volumes, as droplet size increased, weed control decreased...
March 13, 2018: Pest Management Science
Mollye S MacNaughton, William S Whiteside, James R Rieck, Ronald L Thomas
The objectives of this work were to determine the effect of 3 levels of residual air and 2 different retort motions on the value of the average heating slope of the rate of heat penetration of 3 different viscosities of a food simulant in flexible retort pouches. Pouches were thermally processed in a water spray automated batch retort system using 2 different methods of motion: static and oscillating continuously at a speed of 10.5 rotations per min (RPM) with an angle of 15°. Nine residual air and viscosity combinations were processed during each experimental run: low viscosity with no residual air (LV-NRA), medium viscosity with no residual air (MV-NRA), high viscosity with no residual air (HV-NRA), low viscosity with medium residual air (LV-MRA), medium viscosity with medium residual air (MV-MRA), high viscosity with medium residual air (HV-MRA), low viscosity with high residual air (LV-HRA), medium viscosity with high residual air (MV-HRA), and high viscosity with high residual air (HV-HRA)...
March 13, 2018: Journal of Food Science
Katharina Wulf, Michael Teske, Claudia Matschegewski, Daniela Arbeiter, Dalibor Bajer, Thomas Eickner, Klaus-Peter Schmitz, Niels Grabow
The successive incorporation of several drugs into the polymeric bulk of implants mostly results in loss of considerable quantity of one drug, and/or the loss in quality of the coating and also in changes of drug release time points. A dual drug delivery system (DDDS) based on poly-L-lactide (PLLA) copolymers combining the effective inhibition of smooth muscle cell proliferation while simultaneously promoting re-endothelialization was successfully developed. To overcome possible antagonistic drug interactions and the limitation of the polymeric bulk material as release system for dual drugs, a novel concept which combines the bulk and surface drug immobilization for a DDDS was investigated...
March 12, 2018: Drug Delivery and Translational Research
Andrew Galimberti, Andrei Alyokhin
Mineral oil is a product used to reduce Potato Virus Y transmission in potato fields. However, there is little information available about other effects that oil may have on insect pests of potato. To better understand how mineral oil affects potato pests, we performed a series of experiments testing the effects of oil on mortality, behavior, and development of potato aphids, Macrosiphum euphorbiae (Thomas) (Hemiptera: Aphididae), green peach aphids, Myzus persicae (Sulzer) (Hemiptera: Aphididae), and Colorado potato beetles, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae)...
March 8, 2018: Journal of Economic Entomology
Yousif A Al Dulaijan, Lei Cheng, Michael D Weir, Mary Anne S Melo, Huaibing Liu, Thomas W Oates, Lin Wang, Hockin H K Xu
OBJECTIVE: Rechargeable calcium phosphate (CaP) composites were developed recently. However, none of the rechargeable CaP composites was antibacterial. The objectives of this study were to develop the first rechargeable CaP composite that was antibacterial, and to investigate the effects of adding dimethylaminohexadecyl methacrylate (DMAHDM) into rechargeable CaP composite on ion rechargeability and re-release as well as biofilm properties. METHODS: DMAHDM was synthesized via a Menschutkin reaction...
March 8, 2018: Journal of Dentistry
Felix J Berger, Thomas M Higgins, Marcel Rother, Arko Graf, Yuriy Zakharko, Sybille Allard, Maik Matthiesen, Jan M Gotthardt, Ullrich Scherf, Jana Zaumseil
Dense layers of semiconducting single-walled carbon nanotubes (SWNTs) serve as electrochromic materials in the near-infrared with high optical density and high conductivity. Electrochromic cells with tunable notch filter properties instead of broadband absorption are created via highly selective dispersion of specific semiconducting SWNTs through polymer-wrapping followed by deposition of thick films by aerosol-jet printing. A simple planar geometry with spray-coated mixed SWNTs as the counter electrode renders transparent metal oxides redundant and facilitates complete bleaching within a few seconds through iongel electrolytes with high ionic conductivities...
March 9, 2018: ACS Applied Materials & Interfaces
Bashir Adam Ismail, Hmooda Toto Kafy, Jihad Eltaher Sulieman, Krishanthi Subramaniam, Brent Thomas, Abraham Mnzava, Nur Faeza Abu Kassim, Abu Hassan Ahmad, Tessa B Knox, Immo Kleinschmidt, Martin J Donnelly
BACKGROUND: Long-lasting insecticidal nets (LLINs) (with pyrethroids) and indoor residual spraying (IRS) are the cornerstones of the Sudanese malaria control program. Insecticide resistance to the principal insecticides in LLINs and IRS is a major concern. This study was designed to monitor insecticide resistance in Anopheles arabiensis from 140 clusters in four malaria-endemic areas of Sudan from 2011 to 2014. All clusters received LLINs, while half (n = 70), distributed across the four regions, had additional IRS campaigns...
March 2, 2018: Parasites & Vectors
Kirk McGilvray, Jeremiah Easley, Howard B Seim, Daniel Regan, Sigurd H Berven, Wellington K Hsu, Thomas E Mroz, Christian M Puttlitz
BACKGROUND CONTEXT: There is significant variability in the materials commonly used for interbody cages in spine surgery. It is theorized that 3-D printed interbody cages utilizing porous titanium material can provide more consistent bone ingrowth and biological fixation. PURPOSE: The purpose of this study was to provide an evidence-based approach to decision making regarding interbody materials for spinal fusion. STUDY DESIGN: Comparative animal study...
February 26, 2018: Spine Journal: Official Journal of the North American Spine Society
Sharon S Y Leung, Thaigarajan Parumasivam, An Nguyen, Thomas Gengenbach, Elizabeth A Carter, Nicholas B Carrigy, Hui Wang, Reinhard Vehring, Warren H Finlay, Sandra Morales, Warwick J Britton, Elizabeth Kutter, Hak-Kim Chan
This study aimed to assess the robustness of using a spray drying approach and formulation design in producing inhalable phage powders. Two types of Pseudomonas phages, PEV2 (Podovirus) and PEV40 (Myovirus) in two formulations containing different amounts of trehalose (70% and 60%) and leucine (30% and 40%) were studied. Most of the surface of the produced powders was found to be covered in crystalline leucine. The powders were stored at 4°C and 20 °C under vacuum. The phage stability and in vitro aerosol performance of the phage powders were examined on the day of production and after 1, 3 and 12 months of storage...
February 24, 2018: European Journal of Pharmaceutics and Biopharmaceutics
Kevin J Sanchez, Chia-Li Chen, Lynn M Russell, Raghu Betha, Jun Liu, Derek J Price, Paola Massoli, Luke D Ziemba, Ewan C Crosbie, Richard H Moore, Markus Müller, Sven A Schiller, Armin Wisthaler, Alex K Y Lee, Patricia K Quinn, Timothy S Bates, Jack Porter, Thomas G Bell, Eric S Saltzman, Robert D Vaillancourt, Mike J Behrenfeld
Biogenic sources contribute to cloud condensation nuclei (CCN) in the clean marine atmosphere, but few measurements exist to constrain climate model simulations of their importance. The chemical composition of individual atmospheric aerosol particles showed two types of sulfate-containing particles in clean marine air masses in addition to mass-based Estimated Salt particles. Both types of sulfate particles lack combustion tracers and correlate, for some conditions, to atmospheric or seawater dimethyl sulfide (DMS) concentrations, which means their source was largely biogenic...
February 19, 2018: Scientific Reports
Daniel Seung Kim, Yatong K Li, Jerry H Kim, Curtis S Bergquist, Marsha Gerdes, Judy C Bernbaum, Nancy Burnham, Donna M McDonald-McGinn, Elaine H Zackai, Susan C Nicolson, Thomas L Spray, Deborah A Nickerson, Hakon Hakonarson, Gail P Jarvik, J William Gaynor
OBJECTIVES: The MBL2 gene is the major genetic determinant of mannose-binding lectin (MBL)-an acute phase reactant. Low MBL levels have been associated with adverse outcomes in preterm infants. The MBL2Gly54Asp missense variant causes autosomal dominant MBL deficiency. We tested the hypothesis that MBL2Gly54Asp is associated with worse neurodevelopmental outcomes after cardiac surgery in neonates. METHODS: This is an analysis of a previously described cohort of patients with nonsyndromic congenital heart disease who underwent cardiac surgery with cardiopulmonary bypass before age 6 months (n = 295)...
March 2018: Journal of Thoracic and Cardiovascular Surgery
James William Gaynor, Samuel Parry, Julie S Moldenhauer, Rebecca A Simmons, Jack Rychik, Richard F Ittenbach, William W Russell, Erin Zullo, John Laurenson Ward, Susan C Nicolson, Thomas L Spray, Mark P Johnson
OBJECTIVES: Pregnancies with congenital heart disease in the foetus have an increased prevalence of pre-eclampsia, small for gestational age and preterm birth, which are evidence of an impaired maternal-foetal environment (MFE). METHODS: The impact of an impaired MFE, defined as pre-eclampsia, small for gestational age or preterm birth, on outcomes after cardiac surgery was evaluated in neonates (n = 135) enrolled in a study evaluating exposure to environmental toxicants and neuro-developmental outcomes...
February 13, 2018: European Journal of Cardio-thoracic Surgery
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