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Cai Yun Lian, Zhong Ming Ma
To resolve the problem of higher application and lower use efficiency of phosphorus fertilizer of Chinese cabbage (Brassica pekinensis), the yield, use efficiency of phosphate fertilizer and soil phosphate balance were examined by a located field trial in Zhangye Observation and Experiment Station of the Agro-ecological Environment in oasis irrigation region from 2011 to 2013. The results showed that the yield increased with the increase of phosphorus fertilization rate from 0 to 112.52 kg P·hm-2 , beyond which there would be no further enhancement...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
Shi-Wei He, Yong-Gang Zhao, Yun Zhang, Mi-Cong Jin, Yan Zhu
A novel hydrophilicity nano-titania coating modified magnetic graphene oxide (HTC-Mag-GO) has been synthesized. It has been evaluated in PRiME (process, robustness, improvements, matrix effects, ease of use) pass-through cleanup procedure for human blood prior to analysis of fipronil and its metabolites, i.e., fipronil sulphone, fipronil sulphide and fipronil desulfinyl by liquid chromatography-tandem quadrupole mass spectrometry (LC-MS/MS). Compared with the Oasis PRiME HLB cartridge, HTC-Mag-GO is much more effective for the removal of matrix effect...
April 9, 2018: Journal of Chromatography. A
Hassan Safaa, Ismail Esam
  The present study aims to detect and evaluate the groundwater quality in Siwa Oasis using chemical and remote sensing data analysis. To carry out this goal, the data of Thermal Emission and Reflection Radiometer (ASTER) images have been used to discriminate the lithological rock units. ALOS radar remote sensing data with spatial resolution 12.5 m has been used to emphasize the predominant fault trends as well as detection of the buried structures. The chemical analysis of 39 groundwater samples was used to evaluate the suitability of groundwater for drinking and irrigation purposes by comparing those parameters with World Health Organization standards...
May 1, 2018: Water Environment Research: a Research Publication of the Water Environment Federation
Yuan Yao, Yijun Shao, Ming Zhan, Xiaoli Zou, Weidong Qu, Ying Zhou
Bisphenol analogues, amphenicol antibiotics, and phthalate have widely aroused public concerns due to their adverse effects on human health. In this study, a rapid and sensitive method for determination of nine bisphenol analogues, three amphenicol antibiotics, and six phthalate metabolites in the urine based on ultra-high-performance liquid chromatography coupled with triple quadrupole tandem mass spectrometry was developed and validated. The sample pretreatment condition on the base of mixed-mode anion-exchange (Oasis MAX) SPE was optimized to separate bisphenol analogues and amphenicol antibiotics from phthalate metabolites: the former were detected with a mobile phase of 0...
April 19, 2018: Analytical and Bioanalytical Chemistry
Diana L Giraldo, Juan D García-Arteaga, Simón Cárdenas-Robledo, Eduardo Romero
Purpose: This work presents an automatic characterization of the Alzheimer's disease describing the illness as a multidirectional departure from a baseline defining the control state, being these directions determined by a distance between functional-equivalent anatomical regions. Methods: After a brain parcellation, a region is described by its histogram of gray levels, and the Earth mover's distance establishes how close or far these regions are. The medoid of the control group is set as the reference and any brain is characterized by its set of distances to this medoid...
April 2018: Brain and Behavior
Michel Guillon, Cécile Maissa, Stéphanie Wong, Trisha Patel, Renée Garofalo
PURPOSE: To compare the effects of a hydrogen peroxide (H2 O2 )-based lens care solution and a polyhexamethylene biguanide (PHMB) multi-purpose solution on the eyelids when used with silicone hydrogel (SiHy) contact lenses. METHODS: A total of 74 symptomatic wearers of ACUVUE® OASYS® (senofilcon A; n = 39) or PureVision® (balafilcon A; n = 35) contact lenses were randomised 1:1 to either CLEAR CARE® Cleaning & Disinfecting Solution or renu® fresh™ multi-purpose solution (n = 37 each)...
April 14, 2018: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
Elinor Simons, Sharon D Dell, Rahim Moineddin, Teresa To
RATIONALE: Childhood asthma has shown variable associations with children's physical activity. Neighborhood walkability captures community features that promote walking and is protective against some chronic conditions, such as obesity and diabetes. OBJECTIVES: We evaluated associations between home neighborhood walkability and incident and ongoing childhood asthma. METHODS: This population-based cohort study used prospectively-collected administrative healthcare data for the province of Ontario housed at the Institute for Clinical Evaluative Sciences...
April 17, 2018: Annals of the American Thoracic Society
Florian Litzinger, Lorenzo Boninsegna, Hao Wu, Feliks Nüske, Raajen Patel, Richard Baraniuk, Frank Noé, Cecilia Clementi
Recent methods for the analysis of molecular kinetics from massive molecular dynamics (MD) data rely on the solution of very large eigenvalue problems. Here we build upon recent results from the field of compressed sensing and develop the spectral oASIS method, a highly efficient approach to approximate the leading eigenvalues and eigenvectors of large generalized eigenvalue problems without ever having to evaluate the full matrices. The approach is demonstrated to reduce the dimensionality of the problem by one or two orders of magnitude, directly leading to corresponding savings in the computation and storage of the necessary matrices, and a speedup of two to four orders of magnitude in solving the eigenvalue problem...
April 16, 2018: Journal of Chemical Theory and Computation
Shupei Jin, Yinghua Qiao, Jun Xing
In this study, a ternary mixed-mode silica sorbent (TMSS) with octamethylene, carboxyl, and amino groups was prepared via Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) click reaction and a subsequent reduction of azide to primary amine. While used in solid-phase extraction (SPE), the retention behavior of TMSS towards a total of nine kinds of basic, neutral, and acidic drugs was investigated in detail. The results revealed that hydrophobic, ion-exchange interaction, and electrostatic repulsion between TMSS and the analytes were closely related to the retention behavior of TMSS...
April 13, 2018: Analytical and Bioanalytical Chemistry
Xiaohuan Miao, Lijun Xu, Haipu Li, Zhaoguang Yang
Olaquindox, carbadox, and cyadox are chemically synthesized antibacterial and growth promoting agents for animals. At high doses they may exert mutagenicity and hepatic and adrenal toxicities in animals. Regrettably, these substances are frequently abused or misused when added into animal feeds. Thus, developing a sensitive and reliable method for simultaneous determination of olaquindox, carbadox, and cyadox in different kinds of animal feeds is crucially important for food safety monitoring. In this paper we optimized instrumental conditions, various extraction solutions, different kinds of solid phase extraction cartridges, and effects of pH on the loading solvents of the Oasis HLB cartridge...
April 12, 2018: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
Jon F Pennycuff, Deborah R Karp, Julia Shinnick, Catherine O Hudson, Gina M Northington
OBJECTIVES: Obstetric anal sphincter injury (OASIS) is a potentially serious complication of vaginal delivery and can lead to both short-term and long-term sequelae. This study sought to identify health care seeking patterns of women who developed pelvic floor symptoms including pelvic pain after OASIS. It also identified demographic and clinical factors associated with seeking subspecialty care from a pelvic floor specialist and demographic and clinical factors associated with seeking care for pelvic pain after OASIS...
April 6, 2018: Female Pelvic Medicine & Reconstructive Surgery
B Taboada, P Isa, A L Gutiérrez-Escolano, R M Del Ángel, J E Ludert, N Vázquez, M A Tapia-Palacios, P Chávez, E Garrido, A C Espinosa, L E Eguiarte, S López, V Souza, C F Arias
The Cuatro Ciénegas Basin (CCB) is located in the Chihuahuan desert, in the Mexican state of Coahuila; it has been characterized as a site with a biological high diversity despite its extreme oligotrophic conditions. It has the greatest number of endemic species in North America, containing abundant living microbialites (including stromatolites and microbial mats), and diverse microbial communities. With the hypothesis that this large biodiversity and the geographic structure should be reflected in the virome, the viral communities in 11 different locations of three drainage systems: Churince, La Becerra, and Pozas Rojas and in the intestinal content of 3 different fish species were analyzed, looking for both eukaryotic and prokaryotic RNA and DNA viruses, using NGS methods...
April 6, 2018: Applied and Environmental Microbiology
Atsushi Takazawa, Naosuke Kamei, Nobuo Adachi, Mitsuo Ochi
Old astrocyte specifically induced substance (OASIS) is an endoplasmic reticulum (ER) stress transducer specifically expressed in astrocytes and osteoblasts. OASIS regulates the differentiation of neural precursor cells into astrocytes in the central nervous system. This study aimed to elucidate the involvement of ER stress responses stimulated via OASIS in astrogliosis following spinal cord injury. In a mouse model of spinal cord contusion injury, OASIS mRNA and protein expression were evaluated at days 7 and 14...
March 2018: Neural Regeneration Research
Jingbo Zhai, Wei Mu, Jinhua Si, Yan Li, Chen Zhao, Hongcai Shang, Huanan Li, Guihua Tian
INTRODUCTION: Constipation is one of the most common complications in patients with stroke. Acupuncture has gained increased popularity for the management of constipation. However, there is a lack of supportive evidence on the efficacy of acupuncture for poststroke constipation. This systematic review aims to collect and critically appraise all the available evidence about the efficacy and safety of the acupuncture for constipation in poststroke patients. METHODS AND ANALYSIS: A comprehensive search of Pubmed, Embase, Cochrane Central Register of Controlled Trials, Web of Science, four Chinese databases (National Knowledge Infrastructure (CNKI), Chinese Biomedical Literatures database (CBM), Wanfang Digital Periodicals (WANFANG) and Chinese Science and Technology Periodicals (VIP) database), one Japanese medical database (National Institute of Informatics, CiNii) and one Korean medical database (Oriental Medicine Advanced Searching Integrated System, OASIS) will be conducted to identify randomised controlled trials of acupuncture for constipation in poststroke patients...
March 30, 2018: BMJ Open
Polly A Jordan, Madhu Naidu, Ranee Thakar, Abdul H Sultan
INTRODUCTION AND HYPOTHESIS: Our primary objective was to prospectively evaluate anorectal symptoms, anal manometry and endoanal ultrasound (EAUS) in women who followed the recommended mode of subsequent delivery following index obstetric anal sphincter injuries (OASIs) using our unit's standardised protocol. Our secondary objectives were to evaluate the role of internal anal sphincter defects and also to compare outcomes in a subgroup of symptomatic women with normal anorectal physiology...
March 29, 2018: International Urogynecology Journal
Bo Zhang, Xiaopeng Gao, Lei Li, Yan Lu, Muhammad Shareef, Caibian Huang, Guojun Liu, Dongwei Gui, Fanjiang Zeng
Ecological stoichiometry is an important aspect in the analysis of the changes in ecological system composition, structure, and function and understanding of plant adaptation in habitats. Leaf carbon (C), nitrogen (N), and phosphorus (P) concentrations in desert phreatophytes can be affected by different depths of groundwater through its effect on the adsorption and utilization of nutrient and plant biomass. We examined the biomass, soil organic C, available (mineral) N, and available P, and leaf C, N, and P concentrations of Alhagi sparsifolia grown at varying groundwater depths of 2...
2018: Frontiers in Plant Science
Tae-Young Choi, Ji Hee Jun, Myeong Soo Lee
BACKGROUND: Integrative medicine is claimed to improve symptoms of lupus nephritis. No systematic reviews have been performed for the application of integrative medicine for lupus nephritis on patients with systemic lupus erythematosus (SLE). Thus, this review will aim to evaluate the current evidence on the efficacy of integrative medicine for the management of lupus nephritis in patients with SLE. METHODS AND ANALYSES: The following electronic databases will be searched for studies published from their dates of inception February 2018: Medline, EMBASE and the Cochrane Central Register of Controlled Trials (CENTRAL), as well as 6 Korean medical databases (Korea Med, the Oriental Medicine Advanced Search Integrated System [OASIS], DBpia, the Korean Medical Database [KM base], the Research Information Service System [RISS], and the Korean Studies Information Services System [KISS]), and 1 Chinese medical database (the China National Knowledge Infrastructure [CNKI])...
March 2018: Medicine (Baltimore)
Ji Hee Jun, Tae-Young Choi, Junhua Zhang, Mi Mi Ko, Myeong Soo Lee
BACKGROUND: Herbal medicine treatment is often recommended in order to raise immunity levels and reduce the possibility of recurrence of symptoms, and treating the fundamental causes of the disease. This systematic review will assess the efficacy of herbal medicine in treating Behcet's disease. METHODS AND ANALYSIS: We will search the following 11 electronic databases from their inception: PubMed, EMBASE, and CENTRAL; 3 Chinese databases (CNKI, Wanfang, and VIP); and 5 Korean databases (OASIS, DBpia, RISS, KISS, and KoreaMed)...
March 2018: Medicine (Baltimore)
Yinghong Li, Ping Zhou, Quanhua Xu, Huan Zhao, Qiaoyun Shao
A method was developed for the simultaneous determination of seven high risk pesticides in the royal jelly, eg. tau-fluvalinate, triadimenol, coumaphos, haloxyfop, carbendazim, thiophanate-ethyl and thiophanate-methyl by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). First, the royal jelly samples were extracted with acetonitrile under alkaline conditions. After dehydration by anhydrous sodium sulfate, the extracts were enriched and purified through solid-phase extraction (SPE) with Oasis HLB cartridges...
February 8, 2018: Se Pu, Chinese Journal of Chromatography
Vered H Eisenberg, Dan V Valsky, Simcha Yagel
Obstetric anal sphincter injury (OASI) is the most common cause of anal incontinence and ano-rectal symptoms in women1 . Reported rates of anal incontinence following primary repair of OASI range between 15-61%, with a mean of 39%2, 3 . Other possible complications of OASI include perineal pain, dyspareunia, and less commonly, abscess formation, wound breakdown, and rectovaginal fistulae. Symptom onset may occur immediately, several years postpartum, or only late in life when aging of tissues adds to the delivery insult...
March 24, 2018: Ultrasound in Obstetrics & Gynecology
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