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https://www.readbyqxmd.com/read/28434045/slow-drilling-speeds-for-single-drill-implant-bed-preparation-experimental-in-vitro-study
#1
R A Delgado-Ruiz, E Velasco Ortega, G E Romanos, S Gerhke, I Newen, J L Calvo-Guirado
AIMS: To evaluate the real-time bone temperature changes during the preparation of the implant bed with a single-drill protocol with different drill designs and different slow drilling speeds in artificial type IV bone. MATERIALS AND METHODS: For this experimental in vitro study, 600 implant bed preparations were performed in 10 bovine bone disks using three test slow drilling speeds (50/150/300 rpm) and a control drilling speed (1200 rpm). The temperature at crestal and apical areas and time variations produced during drilling with three different drill designs with similar diameter and length but different geometry were recorded with real-life thermographic analysis...
April 22, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28430720/the-effect-of-insertion-technique-on-temperatures-for-standard-and-self-drilling-external-fixation-pins
#2
Sarah Manoogian, Adam K Lee, James C Widmaier
OBJECTIVES: No studies have assessed the effects of parameters associated with insertion temperature in modern self-drilling external fixation pins. The current study assessed how varying the presence of irrigation, insertion speed, and force impacted the insertion temperatures of two types of standard and self-drilling external fixation half pins. METHODS: Seventy tests were conducted with ten trials for four conditions on self-drilling pins and three conditions for standard pins...
April 6, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28430305/turbulence-measurements-in-an-axial-rotary-blood-pump-with-laser-doppler-velocimetry
#3
Chan Y Schüle, Klaus Affeld, Max Kossatz, Christian O Paschereit, Ulrich Kertzscher
BACKGROUND: The implantation of rotary blood pumps as ventricular assist devices (VADs) has become a viable therapy for quite a number of patients with end-stage heart failure. However, these rotary blood pumps cause adverse events that are related to blood trauma. It is currently believed that turbulence in the pump flow plays a significant role. But turbulence has not been measured to date because there is no optical access to the flow space in rotary blood pumps because of their opaque casings...
April 18, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28430029/legal-mapping-analysis-of-state-telehealth-reimbursement-policies
#4
Kate E Trout, Sankeerth Rampa, Fernando A Wilson, Jim P Stimpson
BACKGROUND: There exists rapid growth and inconsistency in the telehealth policy environment, which makes it difficult to quantitatively evaluate the impact of telehealth reimbursement and other policies without the availability of a legal mapping database. INTRODUCTION: We describe the creation of a legal mapping database of state-level policies related to telehealth reimbursement of healthcare services. Trends and characteristics of these policies are presented...
April 21, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/28427686/ultrasound-assisted-acid-catalyzed-lactose-hydrolysis-understanding-into-effect-of-operating-parameters-and-scale-up-studies
#5
Chinmay N Gajendragadkar, Parag R Gogate
The current work deals with the value addition of lactose by transforming into hydrolyzed lactose syrup containing glucose and galactose in major proportion using the novel approach of ultrasound assisted acid catalyzed lactose hydrolysis. The hydrolysis of lactose was performed in ultrasonic bath (33kHz) at 50% duty cycle at different temperatures as 65°C and 70°C and two different hydrochloric acid (HCl) concentrations as 2.5N and 3N. It was observed that acid concentration, temperature and ultrasonic treatment were the major factors in deciding the time required to achieve ∼90% hydrolysis...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28425388/lower-bound-on-estimation-variance-of-the-ultrasonic-attenuation-coefficient-using-the-spectral-difference-reference-phantom-method
#6
Kayvan Samimi, Tomy Varghese
Ultrasonic attenuation is one of the primary parameters of interest in Quantitative Ultrasound (QUS). Non-invasive monitoring of tissue attenuation can provide valuable diagnostic and prognostic information to the physician. The Reference Phantom Method (RPM) was introduced as a way of mitigating some of the system-related effects and biases to facilitate clinical QUS applications. In this paper, under the assumption of diffuse scattering, a probabilistic model of the backscattered signal spectrum is used to derive a theoretical lower bound on the estimation variance of the attenuation coefficient using the Spectral-Difference RPM...
May 2017: Ultrasonic Imaging
https://www.readbyqxmd.com/read/28423870/effects-of-physically-effective-neutral-detergent-fiber-content-on-dry-matter-intake-digestibility-and-chewing-activity-in-korean-native-goats-capra-hircus-coreanae-fed-with-total-mixed-ration
#7
Seyoung Jang, Eunkyung Kim, Jaehyun Park, Mirae Oh, Yujiao Tang, Yuling Ding, Hyejin Seong, Wonho Kim, Yeongsik Yun, Sangho Moon
Objective: This experiment was aimed to determine proper physical traits in the diet for goats by investigating the effects of physically effective neutral detergent fiber (peNDF) content on dry matter intake (DMI), digestibility, and chewing activity in black goats fed with total mixed ration (TMR). Methods: Six growing wethers of Korean native black goats (Capra hircus coreanae) aged 8 months and weighing between 26.9 kg and 27.1 kg (27.03±5.05 kg) were used in this experiment...
April 19, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28419623/cognitive-component-of-psychomotor-retardation-in-unipolar-and-bipolar-depression-is-verbal-fluency-a-relevant-marker-impact-of-repetitive-transcranial-stimulation
#8
Véronique Thomas-Ollivier, Emmanuelle Foyer, Samuel Bulteau, Anne Pichot, Pierre Valriviere, Anne Sauvaget, Thibault Deschamps
AIMS: In the literature, psychomotor retardation (PMR) is increasingly highlighted as a relevant marker for depression. Currently, we chose to focus on the fluency capacities as an evaluation of the frontal lobes functioning to reach a better understanding of cognitive and neurobiological mechanisms involved in PMR in depression. The aims of this study were 1) to explore the cognitive component of PMR through the analysis of Verbal Fluency (VF) performance in unipolar and bipolar depression; 2) to examine whether a repetitive transcranial magnetic stimulation (rTMS) treatment can improve concomitantly the RPM and VF capacities, as a relevant marker characteristic of the cognitive component of PMR...
April 17, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28418359/-a-rare-concurrence-of-polymyalgia-rheumatica-and-aa-amyloidosis
#9
S G Radenska-Lopovok, O N Kotenko, N F Frolova, A I Zagrebneva, E S Stolyarevich, E V Volodina, V I Chervinko, E V Kryukov, M L Zubkin
Polymyalgia rheumatica (PMR) is a rare chronic inflammatory disease. It predominantly affects the elderly. The disease has a slow onset, pain and stiffness in the muscles of the shoulder and pelvic girdle, fever, weight loss, and a high acute-phase inflammatory response. The disease is concurrent with giant cell arteritis in a quarter of cases, which allows some authors to consider them as two different manifestations of the same pathological process. The kidneys are rarely involved. This disease is rarely complicated by AA amyloidosis...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28416861/application-of-genetic-algorithm-to-optimize-extrusion-condition-for-soy-based-meat-analogue-texturization
#10
Mostafa Mazaheri Tehrani, Ahmad Ehtiati, Shadi Sharifi Azghandi
The aim of this study was to find the optimum extrusion process conditions for texturized soybean meal as a meat analogue for food formulations using genetic algorithm. The defatted soybean meal was replaced with whole soybean meal at 10% and extruded in the temperature range of 150-200 °C, screw speed of 270-300 rpm and 20-25% feed moisture content based on the Box-Behnken design. The barrel temperature effect was markedly greater than those of the feed moisture content and screw speed on the product functional properties and appearance...
April 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28416394/moderate-reagent-mixing-on-an-orbital-shaker-reduces-the-incubation-time-of-enzyme-linked-immunosorbent-assay
#11
Saroj Kumar, Rajesh Ahirwar, Ishita Rehman, Pradip Nahar
Rapid diagnostic tests can be developed using ELISA for detection of diseases in emergency conditions. Conventional ELISA takes 1-2 days, making it unsuitable for rapid-diagnostics. Here, we report the effect of reagents mixing via shaking or vortexing on the assay timing of ELISA. A 48-min protocol of ELISA involving 12-min incubations with reagent mixing at 750 rpm of for every step was optimized. Contrary to this, time-optimized control ELISA performed without mixing produced similar results in 8 h, leaving a time gain of 7 h using the developed protocol...
April 14, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28415065/acute-effect-of-biomechanical-muscle-stimulation-on-the-counter-movement-vertical-jump-power-and-velocity-in-division-i-football-players
#12
Bert H Jacobson, Taylor P Monaghan, John H Sellers, Eric C Conchola, Zach K Pope, Rob G Glass
Jacobson, BH, Monaghan, TP, Sellers, JH, Conchola, EC, Pope, ZK, and Glass, RG. Acute effect of biomechanical muscle stimulation on the counter-movement vertical jump power and velocity in division I football players. J Strength Cond Res 31(5): 1259-1264, 2017-Research regarding whole body vibration (WBV) largely supports such training augmentation in attempts to increase muscle strength and power. However, localized biomechanical vibration has not received the same attention. The purpose of this study was to assess peak and average power before and after acute vibration of selected lower-body sites in division I athletes...
May 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28414213/immobilization-and-stabilization-of-acylase-on-carboxylated-polyaniline-nanofibers-for-highly-effective-antifouling-application-via-quorum-quenching
#13
Jeongjoon Lee, Inseon Lee, Jahyun Nam, Dong Soo Hwang, Kyung-Min Yeon, Jungbae Kim
Acylase was immobilized and stabilized on carboxylated polyaniline nanofibers (cPANFs) for the development of antifouling nanobiocatalysis with high enzyme loading and stability. Acylase was immobilized via three different approaches: covalent attachment (CA), enzyme coating (EC), and magnetically separable enzyme precipitate coating (Mag-EPC). The enzyme activity per unit weight of cPANFs of Mag-EPC was 75 and 300 times higher than those of CA and EC, respectively, representing the improved enzyme loading in the form of Mag-EPC...
April 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28412884/horizontally-rotating-disc-recirculated-photoreactor-with-immobilized-tio2-p25-nanoparticles-onto-hdpe-plate-for-photocatalytic-removal-of-p-nitrophenol
#14
Mohammad A Behnajady, Hojjat Dadkhah, Hamed Eskandarloo
In this study, a horizontally rotating disc recirculated (HRDR) photoreactor equipped with two UV lamps (6 W) was designed and fabricated for photocatalytic removal of p-Nitrophenol (PNP). Photocatalyst (TiO2) nanoparticles were immobilized onto a polyethylene disc, and PNP containing solution was allowed to flow (flow rate of 310 mL min(-1)) in radial direction along the surface of the rotating disc illuminated with UV light. The efficiency of direct photolysis and photocatalysis and the effect of rotating speed on the removal of PNP were studied in the HRDR photoreactor...
April 17, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28411509/direct-acting-antivirals-and-host-targeting-strategies-to-combat-enterovirus-infections
#15
REVIEW
Lisa Bauer, Heyrhyoung Lyoo, Hilde M van der Schaar, Jeroen Rpm Strating, Frank Jm van Kuppeveld
Enteroviruses (e.g., poliovirus, enterovirus-A71, coxsackievirus, enterovirus-D68, rhinovirus) include many human pathogens causative of various mild and more severe diseases, especially in young children. Unfortunately, antiviral drugs to treat enterovirus infections have not been approved yet. Over the past decades, several direct-acting inhibitors have been developed, including capsid binders, which block virus entry, and inhibitors of viral enzymes required for genome replication. Capsid binders and protease inhibitors have been clinically evaluated, but failed due to limited efficacy or toxicity issues...
April 12, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28401465/metabolism-of-pyrene-through-phthalic-acid-pathway-by-enriched-bacterial-consortium-composed-of-pseudomonas-burkholderia-and-rhodococcus-pbr
#16
Sagar Vaidya, Kunal Jain, Datta Madamwar
Polycyclic aromatic hydrocarbons (PAHs) are highly recalcitrant compounds due to their high hydrophobicity and tendency to partition in organic phase of soils. Pyrene is a high-molecular weight PAH, which has human health concerns. In the present study, a bacterial consortium, PBR, was developed from a long-term polluted site, viz., Amlakhadi, Ankleshwar, Gujarat, for effective degradation of pyrene. The consortium effectively metabolized pyrene as a sole source of carbon and energy. The consortium comprised three bacterial species, Pseudomonas sp...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28395343/the-generation-rate-of-respirable-dust-from-cutting-fiber-cement-siding-using-different-tools
#17
Chaolong Qi, Alan Echt, Michael G Gressel
This article describes the evaluation of the generation rate of respirable dust (GAPS, defined as the mass of respirable dust generated per unit linear length cut) from cutting fiber cement siding using different tools in a laboratory testing system. We used an aerodynamic particle sizer spectrometer (APS) to continuously monitor the real-time size distributions of the dust throughout cutting tests when using a variety of tools, and calculated the generation rate of respirable dust for each testing condition using the size distribution data...
March 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28390015/approaches-towards-the-enhanced-production-of-rapamycin-by-streptomyces-hygroscopicus-mtcc-4003-through-mutagenesis-and-optimization-of-process-parameters-by-taguchi-orthogonal-array-methodology
#18
Subhasish Dutta, Bikram Basak, Biswanath Bhunia, Ankan Sinha, Apurba Dey
The present research was conducted to define the approaches for enhanced production of rapamycin (Rap) by Streptomyces hygroscopicus microbial type culture collection (MTCC) 4003. Both physical mutagenesis by ultraviolet ray (UV) and chemical mutagenesis by N-methyl-N-nitro-N-nitrosoguanidine (NTG) have been applied successfully for the improvement of Rap production. Enhancing Rap yield by novel sequential UV mutagenesis technique followed by fermentation gives a significant difference in getting economically scalable amount of this industrially important macrolide compound...
May 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28388915/improved-curdlan-production-with-discarded-bottom-parts-of-asparagus-spear
#19
Rex Frimpong Anane, Huifang Sun, Lamei Zhao, Le Wang, Chun Lin, Zichao Mao
BACKGROUND: This work evaluated the improvement of curdlan production of Agrobacterium sp. ATCC 31749 by using culture medium containing juice of discarded bottom part of green Asparagus spear (MJDA). Curdlan production was carried out using Agrobacterium sp. ATCC 31749 in flasks with different volumes of MJDA and its non-juice-adding control (CK) incubated in shaker at 30 °C, 200 rpm rotation for 168 h. RESULTS: All MJDA media increased Agrobacterium sp. ATCC 31749 cell mass and enhanced the cells' ability to utilise sucrose, the carbon source for curdlan biosynthesis, and thereby produced higher concentration of curdlan than CK which is used for commercial production of curdlan...
April 7, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28388318/rotary-and-high-pressure-nozzle-spray-plume-droplet-analysis-for-aerially-applied-mosquito-adulticides-laser-diffraction-characterization
#20
Jonathan A Hornby, Jim Robinson, Milton Sterling
The droplet spectrum of a mosquito adulticide spray plume determines its ability to drift through the target area, impinge on the mosquito, deliver a toxic dose, and the risk of environmental contamination. This paper provides data on droplet spectra produced from 6 nozzles in a high-pressure nozzle spray system and 5 rotary nozzle systems for common mosquito adulticides. Spray plume spectra were measured by laser diffraction. High-pressure nozzles were evaluated at pressures ranging from 500 psi to 6,000 psi...
March 2017: Journal of the American Mosquito Control Association
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