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https://www.readbyqxmd.com/read/29169229/novel-vertebral-indices-in-normal-and-spinal-disorder-dogs-using-computed-tomography
#1
Jongsu Lim, Youngmin Yoon, Taesung Hwang, Hee Chun Lee
This study was carried out to derive reference value of normal spine indices, and to evaluate the feasibility of the indices for computed tomography (CT). CT images and magnetic resonance imaging were acquired from clinically normal 12 beagle dogs for normal group and 50 dogs with 56 spinal disorders for patient group. Image acquisition regions were cervical spine (C2 to T1), thoracic spine (T1-T13) and lumbar spine (L1-L7). The measured indices are as follows; the ratio of width to height of spinal cord include dura matter (CR) and vertebral foramen (FR), and the ratio of cross sectional area of spinal cord to vertebral foramen (CFAR)...
November 23, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/29169226/cytological-endometritis-in-dairy-cows-diagnostic-threshold-risk-factors-and-impact-on-reproductive-performance
#2
Soo Chan Lee, Jae Kwan Jeong, In Soo Choi, Hyun Gu Kang, Young Hun Jung, Soo Bong Park, Ill Hwa Kim
We determined the threshold proportion of polymorphonuclear leukocytes (PMNs) for the diagnosis of cytological endometritis (CEM), the risk factors for this condition, and its impact on reproductive performance in dairy cows. Uterine cytology was performed on 407 Holstein cows 4 weeks postpartum to determine the proportions of endometrial cells and PMNs. A receiver operator characteristics curve was used to determine the threshold above which the PMN proportion affected the likelihood of cows conceiving by 200 days postpartum...
November 23, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/29169224/epigenetic-control-of-oxidative-stresses-by-histone-acetyltransferases-in-candida-albicans
#3
REVIEW
Jueun Kim, Shinae Park, Jung-Shin Lee
Candida albicans is a major pathogenic fungus in human, and meets at first the innate immune cells, such as macrophage, in its host. One important strategy of the host cell to kill C. albicans is to produce reactive oxygen species (ROS) by the macrophages. In response to ROS produced by the macrophage, C. albicans operates its defense mechanisms against reactive oxygen species by expressing its oxidative stress response genes. Although there have been many researches explaining the specific transcription factors and the expression of the oxidative stress genes in C...
November 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29169196/peroral-endoscopic-myotomy-in-treatment-na%C3%A3-ve-achalasia-patients-versus-prior-treatment-failure-cases
#4
Zaheer Nabi, Mohan Ramchandani, Radhika Chavan, Manu Tandan, Rakesh Kalapala, Santosh Darisetty, Sundeep Lakhtakia, G Venkat Rao, D Nageshwar Reddy
Background and study aim Peroral endoscopic myotomy (POEM) has emerged as an effective treatment modality for achalasia. Prior treatment may affect the outcomes of subsequent management. In this study, we aimed to compare the safety and efficacy of POEM in treatment-naïve patients vs. those with prior treatment failure (PTF). Patients and methods The data of consecutive patients with achalasia who underwent POEM at a single tertiary care center from January 2013 to November 2016 were analyzed retrospectively...
November 23, 2017: Endoscopy
https://www.readbyqxmd.com/read/29169153/optimal-trough-concentration-of-teicoplanin-in-febrile-neutropenic-patients-with-hematological-malignancy
#5
Yuhki Sato, Kazufumi Hiramatsu, Yosuke Suzuki, Ryota Tanaka, Tetsuya Kaneko, Ko Nonoshita, Masao Ogata, Jun-Ichi Kadota, Hiroki Itoh
BACKGROUND: Teicoplanin is a glycopeptide antibiotic currently used for the treatment of methicillin-resistant Staphylococcus aureus. The need for therapeutic drug monitoring of teicoplanin has been increasingly highlighted as important. It is generally accepted that whereas a plasma trough concentration (Cmin) of ≥10 mg/L is appropriate for the majority of infections, it should exceed 20 mg/L for severe infections. The target Cmin of teicoplanin in patients with febrile neutropenia (FN) has not been reported...
November 24, 2017: Chemotherapy
https://www.readbyqxmd.com/read/29169135/nitrogen-removal-capacity-and-bacterial-community-dynamics-of-a-canon-biofilter-system-at-different-organic-matter-concentrations
#6
María J García-Ruiz, Paula Maza-Márquez, Jesús González-López, Francisco Osorio
Three Canon bench-scale bioreactors with a volume of 2 L operating in parallel were configured as submerged biofilters. In the present study we investigated the effects of a high ammonium concentration (320 mgNH4(+)· L(-1)) and different concentrations of organic matter (0, 100 and 400 mgCOD·L(-1)) on the nitrogen removal capacity and the bacterial community structure. After 60 days, the Canon biofilters operated properly under concentrations of 0 and 100 mgCOD·L(-1) of organic matter, with nitrogen removal efficiencies up to 85%...
November 15, 2017: Chemosphere
https://www.readbyqxmd.com/read/29169127/a-decision-support-tool-for-selecting-the-optimal-sewage-sludge-treatment
#7
Ville Turunen, Jaana Sorvari, Anna Mikola
Sewage sludge contains significant amounts of resources, such as nutrients and organic matter. At the same time, the organic contaminants (OC) found in sewage sludge are of growing concern. Consequently, in many European countries incineration is currently favored over recycling in agriculture. This study presents a Multi-Attribute Value Theory (MAVT)-based decision support tool (DST) for facilitating sludge treatment decisions. Essential decision criteria were recognized and prioritized, i.e., weighted, by experts from water utilities...
November 13, 2017: Chemosphere
https://www.readbyqxmd.com/read/29169117/3d-correction-over-2years-with-anterior-vertebral-body-growth-modulation-a-finite-element-analysis-of-screw-positioning-cable-tensioning-and-postoperative-functional-activities
#8
Nikita Cobetto, Stefan Parent, Carl-Eric Aubin
BACKGROUND: Anterior vertebral body growth modulation is a fusionless instrumentation to correct scoliosis using growth modulation. The objective was to biomechanically assess effects of cable tensioning, screw positioning and post-operative position on tridimensional correction. METHODS: The design of experiments included two variables: cable tensioning (150/200N) and screw positioning (lateral/anterior/triangulated), computationally tested on 10 scoliotic cases using a personalized finite element model to simulate spinal instrumentation, and 2years growth modulation with the device...
November 16, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29169116/p-nitrophenol-degradation-by-fenton-s-oxidation-in-a-bubble-column-reactor
#9
Carmen S D Rodrigues, Ricardo A C Borges, Vanessa N Lima, Luis M Madeira
This paper reports on a study of the oxidation of p-nitrophenol (PNP) in a bubble column reactor (BCR). The use of the air stream aimed to provide perfect mixing in the liquid phase, which was successfully achieved and checked experimentally; there were no concentration gradients along the column, even at the lowest air flow rate used (Q = 1 mL/min at room temperature and atmospheric pressure). The effect of the operating variables was assessed, and a total reduction of PNP was reached, as well as mineralization of 49...
November 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29169113/a-rapid-and-simple-hplc-ms-ms-method-for-the-simultaneous-quantification-of-valproic-acid-and-its-five-metabolites-in-human-plasma-and-application-to-study-pharmacokinetic-interaction-in-chinese-epilepsy-patients
#10
Dingsheng Wen, Ziyi Chen, Chao Yang, Huanbin Liu, Hongliang Li, Juan Chen, Qiling Dai, Guoping Zhong, Jiaming Qin, Guanzhong Ni, Min Huang, Liemin Zhou, Xueding Wang
Valproic acid(VPA) is a classic drug that used to treat epilepsy in monotherapy or combination with other anticonvulsant drugs such as lamotrigine (LTG). Although it was reported that VPA could increase lamotrigine trough concentration in clinical practice, there was no report about the effect of LTG on the trough concentration of VPA and its main metabolites, such as 4-ene-VPA, 3-OH-VPA, 4-OH-VPA, 3-keto-VPA, 2-PGA which are related to the therapeutic and toxic effects of VPA. In this study, a simple and rapid method for the simultaneous determination of VPA and its five metabolites in human plasma using HPLC-MS/MS was developed for the first time...
November 16, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29169091/effects-of-sulphur-on-the-performance-of-an-anaerobic-membrane-bioreactor-biological-stability-trace-organic-contaminant-removal-and-membrane-fouling
#11
Xiaoye Song, Wenhai Luo, James McDonald, Stuart J Khan, Faisal I Hai, Wenshan Guo, Hao H Ngo, Long D Nghiem
This study investigated the impact of sulphur content on the performance of an anaerobic membrane bioreactor (AnMBR) with an emphasis on the biological stability, contaminant removal, and membrane fouling. Removal of 38 trace organic contaminants (TrOCs) that are ubiquitously present in municipal wastewater by AnMBR was evaluated. Results show that basic biological performance of AnMBR regarding biomass growth and the removal of chemical oxygen demand (COD) was not affected by sulphur addition when the influent COD/SO4(2-) ratio was maintained higher than 10...
November 9, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29169031/visceral-fat-index-percentage-body-fat-ratio-is-independently-associated-with-proximal-aortic-dilatation-in-a-middle-aged-and-aged-chinese-population-in-liujiang-of-guangxi
#12
Zhiyuan Jiang, Baojing Lin, Tangwei Liu, Shiyun Qin, Shan Huang, Shuang Shao, Shuo Li, Rongjie Huang, Jiangnan Huang
BACKGROUND AND AIMS: Increased volume of visceral adipose tissue is associated with worsening of cardiovascular disease risk factors that contribute to aortic dilatation. We investigated the effects of visceral fat index (VFI) and VFI/percentage body fat (PBF) ratio on proximal aortic size and proximal aortic dilatation (PAD), to assess whether excess visceral fat deposition is an independent risk factor for PAD. METHODS: 738 participants aged 35 years or more were included in this cross-sectional survey...
November 11, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29168979/prognostic-significance-of-preoperative-neutrophil-to-lymphocyte-ratio-in-surgically-resectable-pancreatic-neuroendocrine-tumors
#13
Bo Zhou, Canyang Zhan, Jingjing Wu, Jianhua Liu, Jie Zhou, Shusen Zheng
BACKGROUND The aim of this study was to evaluate the predictive and prognostic value of the preoperative neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in pancreatic neuroendocrine tumor (PNET) patients undergoing potentially curative resection. MATERIAL AND METHODS A retrospective review of 172 patients with PNETs was conducted. Kaplan-Meier curves and multivariate Cox proportional models were used to calculate overall survival (OS) and disease-free survival (DFS). The predictive performance of the NLR was compared with other inflammation-based scores and conventional stratification systems using receiver operating characteristic (ROC) curve analysis...
November 23, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29168925/enhanced-degradation-of-1-naphthol-in-landfill-leachate-using-arthrobacter-sp
#14
Wenyong Hu, Xiaobo Min, Xinyu Li, Jingyi Liu, Haibin Yu, Yuan Yang, Jiachao Zhang, Lin Luo, Liyuan Chai, Yaoyu Zhou
Arthrobacter sp. named as JY5-1 was isolated from the contaminated soil of a coking plant, which can degrade 1-naphthol as the sole carbon source. Through identification of species, analysis of the optimal degradation condition and kinetic equation, the degradation characteristic of Arthrobacter sp. JY5-1 was obtained. Afterwards, the acclimated strain was added into the bioreactor to observe treatment performance of landfill leachate. The results showed the optimal conditions for strain JY5-1 biodegradation in the study were pH 7...
November 23, 2017: Environmental Technology
https://www.readbyqxmd.com/read/29168911/pre-operative-parameters-do-not-reliably-identify-post-operative-respiratory-risk-in-children-undergoing-adenotonsillectomy
#15
Surendran Thavagnanam, Saou Y Cheong, Karuthan Chinna, Anna M Nathan, Jessie A de Bruyne
AIM: Adenotonsillectomy is performed in children with recurrent tonsillitis or obstructive sleep apnoea. Children at risk of post-operative respiratory complications are recommended to be monitored in paediatric intensive care unit (PICU). The aim of the study is to review the risk factors for post-operative complications and admissions to PICU. METHODS: A review of medical records of children who underwent adenotonsillectomy between January 2011 and December 2014 was performed...
November 23, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29168903/black-phosphorus-based-orientation-induced-diodes
#16
Wei Xin, Xiao-Kuan Li, Xin-Ling He, Bao-Wang Su, Xiao-Qiang Jiang, Kai-Xuan Huang, Xiang-Feng Zhou, Zhi-Bo Liu, Jian-Guo Tian
Despite many decades of research of diodes, which are fundamental components of electronic and photoelectronic devices with p-n or Schottky junctions using bulk or 2D materials, stereotyped architectures and complex technological processing (doping and multiple material operations) have limited future development. Here, a novel rectification device, an orientation-induced diode, assembled using only few-layered black phosphorus (BP) is investigated. The key to its realization is to utilize the remarkable anisotropy of BP in low dimensions and change the charge-transport conditions abruptly along the different crystal orientations...
November 23, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29168902/an-in-situ-thermally-regenerated-air-purifier-for-indoor-formaldehyde-removal
#17
Ru Xiao, Jinhan Mo, Yinping Zhang, Dewen Gao
Formaldehyde is a common indoor pollutant that is an irritant and has been classified as carcinogen to humans. Adsorption technology is safe and stable and removes formaldehyde efficiently, but its short lifespan and low adsorption capacity limit its indoor application. To overcome these limitations, we propose an in-situ thermally regenerated air purifier (TRAP) which self-regenerates as needed. This purifier has four working modes: cleaning mode, regeneration mode, exhaust mode and outdoor air in-take mode, all of which are operated by valve switching...
November 23, 2017: Indoor Air
https://www.readbyqxmd.com/read/29168894/fluid-mixing-in-droplet-based-microfluidics-with-t-junction-and-convergent-divergent-sinusoidal-microchannels
#18
Li Yang, Shanshan Li, Jixiao Liua, Jingmeng Cheng
To explore and utilize the advantages of droplet-based microfluidics, hydrodynamics and mixing process within droplets traveling though the T junction channel and convergent-divergent sinusoidal microchannels are studied by numerical simulations and experiments, respectively. In the T junction channel, the mixing efficiency is significantly influenced by the twirling effect, which controls the initial distributions of the mixture during the droplet formation stage. Therefore, the internal recirculating flow can create a convection mechanism, thus improving mixing...
November 23, 2017: Electrophoresis
https://www.readbyqxmd.com/read/29168783/designing-and-testing-a-uav-mapping-system-for-agricultural-field-surveying
#19
Martin Peter Christiansen, Morten Stigaard Laursen, Rasmus Nyholm Jørgensen, Søren Skovsen, René Gislum
A Light Detection and Ranging (LiDAR) sensor mounted on an Unmanned Aerial Vehicle (UAV) can map the overflown environment in point clouds. Mapped canopy heights allow for the estimation of crop biomass in agriculture. The work presented in this paper contributes to sensory UAV setup design for mapping and textual analysis of agricultural fields. LiDAR data are combined with data from Global Navigation Satellite System (GNSS) and Inertial Measurement Unit (IMU) sensors to conduct environment mapping for point clouds...
November 23, 2017: Sensors
https://www.readbyqxmd.com/read/29168779/factors-effecting-the-total-volatile-organic-compound-tvoc-concentrations-in-slovak-households
#20
Ľudmila Mečiarová, Silvia Vilčeková, Eva Krídlová Burdová, Jozef Kiselák
Thirty five Slovak households were selected for an investigation of indoor environmental quality. Measuring of indoor air physical and chemical factors and a questionnaire survey was performed during May 2017. The range of permissible operative temperature was not met in 11% of objects. Relative humidity met the legislative requirements in all monitored homes. Concentrations of total volatile organic compounds (TVOCs) were significantly higher in the apartments than in the family houses. The average TVOC levels in the apartments and family houses were 519...
November 23, 2017: International Journal of Environmental Research and Public Health
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