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https://www.readbyqxmd.com/read/28823014/assessment-of-the-quality-of-the-harran-plain-soils-under-long-term-cultivation
#1
Ali Volkan Bilgili, Çiğdem Küçük, Harold M Van Es
Soil quality refers to the ability of soils to perform their functions well. The soils of the Harran Plain, Turkey, have been put into intensive crop production with the introduction of an irrigation scheme and become increasingly degraded due to unsustainable management and cropping systems that resulted in the loss of production potential. The goal of this study was to quantify the quality of common soil series in the Plain using soil quality indexes (SQI) and to compare SQIs of two long-term crop rotations, cotton and wheat-corn cultivation, and different soil types...
August 19, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28821985/impact-of-processing-methods-on-urinary-biomarkers-analysis-in-neonates
#2
Michelle C Starr, David J Askenazi, Stuart L Goldstein, James W MacDonald, Theo K Bammler, Zahra Afsharinejad, Patrick D Brophy, Sandra E Juul, Dennis E Mayock, Sangeeta R Hingorani
BACKGROUND: In neonates, the validation of urinary biomarkers to diagnose acute kidney injury is a rapidly evolving field. The neonatal population poses unique challenges when assessing the collection, storage, and processing of urinary samples for biomarker analysis. Given this, establishing optimal and consistent sample processing in this population for meaningful use in ongoing clinical trials is important. METHODS: Urine from a cohort of 19 hospitalized neonatal intensive care unit patients enrolled in the Preterm Erythropoietin Neuroprotection Trial (Clinical Trial NCT01378273) was collected for biomarker analysis by indirect techniques using Fisher-brand cotton balls placed in the diapers...
August 19, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28821781/expressional-divergence-of-the-fatty-acid-amino-acid-conjugate-hydrolyzing-aminoacylase-1-l-acy-1-in-helicoverpa-armigera-and-helicoverpa-assulta
#3
Qian Cheng, Shaohua Gu, Zewen Liu, Chen-Zhu Wang, Xianchun Li
How FACs-producing generalist and specialist herbivores regulate their FACs-hydrolyzing enzyme L-ACY-1 to balance FACs' beneficial vs. detrimental effects remains unknown. To address this question, we compared L-ACY-1 expression in Helicoverpa armigera and Helicoverpa assulta, a pair of closely related sibling species differing mainly in their host range, by the same sets of hostplants, protein to digestible carbohydrate (P:C) ratios, or allelochemical. L-ACY-1 expression remained low/unchanged in H. armigera, but was induced by hot pepper fruits and repressed by cotton bolls in H...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821145/utilization-of-cotton-waste-for-regenerated-cellulose-fibres-influence-of-degree-of-polymerization-on-mechanical-properties
#4
Rasike De Silva, Nolene Byrne
Cotton accounts for 30% of total fibre production worldwide with over 50% of cotton being used for apparel. In the process from cotton bud to finished textile product many steps are required, and significant cotton waste is generated. Typically only 30% of pre consumer cotton is recycled. Here we use cotton waste lint to produce regenerated cellulose fibres (RCF). We find the RCF from waste cotton lint had increased mechanical properties compared to RCF produced from wood pulp. We show that this is likely linked to the higher degree of polymerization (DP) of waste cotton lint...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821127/a-comparative-study-on-cellulose-nanocrystals-extracted-from-bleached-cotton-and-flax-and-used-for-casting-films-with-glycerol-and-sorbitol-plasticisers
#5
Emilia Csiszár, Sebestyén Nagy
Cellulose nanocrystals (CNCs) were released from bleached cotton and flax by a sulphuric acid hydrolysis with about 40 and 34% yield, respectively. The rod-like cotton-CNC particles were slightly longer and wider and had a less pronounced aggregation ability in aqueous suspension than the flax-CNC ones. Films were cast from the CNC suspensions with sorbitol and glycerol plasticisers. The concept behind this research was to explore how the plasticisers - with similar structure but different molecular weight - and their concentrations affect the perceptible and measured properties of CNC films...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821119/tailoring-of-temperature-and-ph-responsive-cotton-fabric-with-antimicrobial-activity-effect-of-the-concentration-of-a-bio-barrier-forming-agent
#6
Danaja Štular, Ivan Jerman, Barbara Simončič, Brigita Tomšič
A stimuli-responsive cotton fabric was designed using temperature and pH-responsive poly-N-isopropylacrylamide (poly-NiPAAm) and chitosan (PNCS) microgel as a carrier of antimicrobially active 3-(trimethoxysilyl)-propyldimethyloctadecyl ammonium chloride (Si-QAC), which forms a bio-barrier on the fibre surface. The influence of Si-QAC on the moisture management and thermoregulation abilities of the PNCS microgel was investigated. Using a pad-dry cure method, Si-QAC was applied to a 100% cotton fabric model in concentrations ranging from 0...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821113/fabrication-of-thermo-responsive-cotton-fabrics-using-poly-vinyl-caprolactam-co-hydroxyethyl-acrylamide-copolymer
#7
Min Xiao, Edurne González, Alexis Martell Monterroza, Margaret Frey
A thermo-responsive polymer with hydrophilic to hydrophobic transition behavior, poly(vinyl caprolactam-co-hydroxyethyl acrylamide) P(VCL-co-HEAA), was prepared by copolymerization of vinyl caprolactam and N-hydroxyethyl acrylamide via free radical solution polymerization. The resulting copolymer was characterized by Fourier transform infrared spectroscopy (FTIR), (1)H nuclear magnetic resonance (NMR), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), and thermogravimetric analysis (TGA)...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821096/characterization-of-carboxymethyl-cellulose-based-nanocomposite-films-reinforced-with-oxidized-nanocellulose-isolated-using-ammonium-persulfate-method
#8
Ahmed A Oun, Jong-Whan Rhim
Cellulose nanocrystals (CNCs) were isolated from cotton linter (CL) and microcrystalline cellulose (MCC) using an ammonium persulfate (APS) method for a simultaneous isolation and oxidation of CNCs. The CNCs were in rod-like shape with a diameter of 10.3nm and 11.4nm, a length of 120-150nm and 103-337nm, a crystallinity index of 93.5% and 79.1% for the CNC(CL) and CNC(MCC), respectively. The suspensions of oxidized CNCs were transparent and stable with the zeta potential values of -50.6mV and -46.9mV. The CNCs were uniformly distributed within the carboxymethyl cellulose (CMC) polymer matrix...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821081/direct-characterization-of-cotton-fabrics-treated-with-di-epoxide-by-nuclear-magnetic-resonance
#9
Min Xiao, Joronia Chéry, Ivan Keresztes, David B Zax, Margaret W Frey
A non-acid-based, di-functional epoxide, neopentyl glycol diglycidyl ether (NPGDGE), was used to modify cotton fabrics. Direct characterization of the modified cotton was conducted by Nuclear Magnetic Resonance (NMR) without grinding the fabric into a fine powder. NaOH and MgBr2 were compared in catalyzing the reaction between the epoxide groups of NPGDGE and the hydroxyl groups of cellulose. Possible reaction routes were discussed. Scanning electron microscopy (SEM) images showed that while the MgBr2-catalyzed reaction resulted in self-polymerization of NPGDGE, the NaOH-catalyzed reaction did not...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821052/industrial-scale-salt-free-reactive-dyeing-of-cationized-cotton-fabric-with-different-reactive-dye-chemistry
#10
Arivithamani Nallathambi, Giri Dev Venkateshwarapuram Rengaswami
Dyeing of knitted cotton goods in the industry has been mostly with reactive dyes. Handling of salt laden coloured effluent arising out of dyeing process is one of the prime concerns of the industry. Cationization of cotton is one of the effective alternative to overcome the above problem. But for cationization to be successful at industrial scale it has to be carried out by exhaust process and should be adoptable for the various dye chemistries currently practiced in the industry. Hence, in the present work, industrial level exhaust method of cationization process was carried out with concentration of 40g/L and 80g/L...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28819325/nitenpyram-seed-treatment-effectively-controls-against-the-mirid-bug-apolygus-lucorum-in-cotton-seedlings
#11
Zhengqun Zhang, Yao Wang, Yunhe Zhao, Beixing Li, Jin Lin, Xuefeng Zhang, Feng Liu, Wei Mu
The mirid bug Apolygus lucorum (Meyer-Dür) has become a major pest in cotton fields and has led to significant yield losses due to the widespread use of transgenic Bt cotton in China. Eight neonicotinoid seed treatments were investigated to determine their effects on the management of A. lucorum in cotton fields. All neonicotinoid seed treatments reduced the cotton damage caused by A. lucorum, and nitenpyram at the rate of 4 g/kg seed showed the most favorable efficacy in suppressing A. lucorum populations throughout the cotton seedling stage...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819177/comparative-transcriptome-analysis-of-se-initial-dedifferentiation-in-cotton-of-different-se-capability
#12
Aiping Cao, Yinying Zheng, Yu Yu, Xuwen Wang, Dongnan Shao, Jie Sun, Baiming Cui
Somatic embryogenesis (SE) is a critical transition from vegetative to embryogenic growth in higher plants; however, few studies have investigated the mechanism that regulates SE initial differentiation. Most cotton varieties have not undergone regeneration by SE, so only a few varieties can be used in genetic engineering. Here, two varieties of cotton with different SE capabilities (HD, higher differentiation and LD, lower differentiation) were analyzed by high throughout RNA-Seq at the pre-induction stage (0h) and two induction stages (3h and 3d) under callus-induction medium (CIM)...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818844/conservative-treatment-versus-surgery-for-uncomplicated-appendicitis-in-children-a-systematic-review-and-meta-analysis
#13
Ulf Kessler, Selim Mosbahi, Benedict Walker, Eva M Hau, Michael Cotton, Barbara Peiry, Steffen Berger, Bernhard Egger
OBJECTIVES: To compare conservative treatment with index admission appendicectomy in children with acute uncomplicated appendicitis. DESIGN: Systematic review and meta-analysis. DATA SOURCES: Medline, Embase and the Cochrane Library (CENTRAL) from 1950 to 18 February 2017. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Studies that assessed both appendicectomy and non-operative management of acute uncomplicated appendicitis in children of less than 18 years of age...
August 17, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28818719/green-approach-for-one-pot-synthesis-of-silver-nanorod-using-cellulose-nanocrystal-and-their-cytotoxicity-and-antibacterial-assessment
#14
Th I Shaheen, Amr Fouda
Herein, this research addresses an innovative approach for one-pot synthesis of highly stabilized silver nanorods in powder form at concentration as high as feasible to be proposed in large-scale production via cellulose nanocrystals (CNC). For the first time, CNC without any surface modification in the presence of alkali is acting as both reducing and stabilizing agent for assembling of Ag nanorods. Extraction of CNC from cotton is carried out as per to acid hydrolysis technique. Thorough assessments of Ag nanorods formation, structural and morphological characteristics of Ag nanorods were investigated by making use of UV-vis spectroscopy, TEM, DLS, AFM and X-ray diffraction(XRD) analysis...
August 14, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28817984/study-on-optimizing-dyeing-of-cotton-using-date-pits-extract-as-a-combined-source-of-coloring-matter-and-bio-mordant
#15
Ahlem Guesmi, Naoufel Ben Hamadi
In this research, extraction of colouring matter from date pits powder was conferred by conventional and ultrasonic methods. Phenolic compounds present in the resulted extract were identified by HPLC analysis. Total phenolic, total flavonoid and total metallic contents were quantified; and the highest levels were obtained in case of ultrasonic extraction process at a frequency of 25 kHz. The different resultant extracts were diluted with distilled water and unified to a polyphenolic content of 48 mg per 100 mL...
August 18, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28814402/molecular-insights-into-the-normal-operation-regulation-and-multisystemic-roles-of-k-cl-cotransporter-3-kcc3
#16
Alexandre P Garneau, Andrée-Anne Marcoux, Rachelle Frenette-Cotton, Fabrice Mac-Way, Julie L Lavoie, Paul Isenring
Long before the molecular identity of the Na(+)-dependent K(+)-Cl(-) cotransporters was uncovered in the mid-nineties, a Na(+)-independent K(+)-Cl(-) cotransport system was also known to exist. It was initially observed in sheep and goat red blood cells where it was shown to be ouabain-insensitive and to increase in the presence of N-ethylmaleimide (NEM). After it was established between the early and mid-nineties, the expressed sequence tag (EST) databank was found to include a sequence that was highly homologous to those of the Na(+)-dependent K(+)-Cl(-) cotransporters...
August 16, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28814094/the-role-of-pegaptanib-sodium-in-the-suppression-of-epidural-fibrosis-in-a-postlaminectomy-rat-model
#17
I Sertbas, A Yilmaz, T Yildirim, M Karatay, H Celik, M A Bayar
OBJECTIVE: Spinal epidural fibrosis is a clinical condition that develops after laminectomy and can compress the spine. Many agents have been tried for the treatment, but none has entered clinical use at present. Pegaptanib sodium is an antiangiogenetic drug that prevents the development of new vessels and thus adhesion by inhibiting the effect of VEGF. MATERIAL AND METHOD: 20 Wistar rats were used in this study. The rats were divided into 2 different groups as the control and pegaptanib sodium group...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28812314/self-assembled-chiral-nanostructures-of-amphiphilic-peptide-from-single-molecule-to-aggregate
#18
Ting Zhou, Zhiqing Zhang, Xuemei Zhang, Chen Wang, Guiying Xu, Yanlian Yang
We report interesting hierarchical self-assembled architectures from a designed amphiphilic peptide. The bisignate cotton effects in circular dichroism spectra show typical peptide aggregation-induced. The observation of peptide assembly structures from initial particles and fibrils to ribbon structures is supported by microscopy (atomic force microscopy and transmission electron microscopy). The visualization of individual peptide at the single molecular level offered insights of the intermolecular interactions responsible for the formation of aggregates, which is investigated by scanning tunneling microscopy...
August 15, 2017: Journal of Peptide Science: An Official Publication of the European Peptide Society
https://www.readbyqxmd.com/read/28810754/on-the-adiabatic-representation-of-meyer-miller-electronic-nuclear-dynamics
#19
Stephen J Cotton, Ruibin Liang, William H Miller
The Meyer-Miller (MM) classical vibronic (electronic + nuclear) Hamiltonian for electronically non-adiabatic dynamics-as used, for example, with the recently developed symmetrical quasiclassical (SQC) windowing model-can be written in either a diabatic or an adiabatic representation of the electronic degrees of freedom, the two being a canonical transformation of each other, thus giving the same dynamics. Although most recent applications of this SQC/MM approach have been carried out in the diabatic representation-because most of the benchmark model problems that have exact quantum results available for comparison are typically defined in a diabatic representation-it will typically be much more convenient to work in the adiabatic representation, e...
August 14, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28810686/sampling-efficiency-and-performance-of-selected-thoracic-aerosol-samplers
#20
Peter Görner, Xavier Simon, Alexis Boivin, Sébastien Bau
Measurement of worker exposure to a thoracic health-related aerosol fraction is necessary in a number of occupational situations. This is the case of workplaces with atmospheres polluted by fibrous particles, such as cotton dust or asbestos, and by particles inducing irritation or bronchoconstriction such as acid mists or flour dust. Three personal and two static thoracic aerosol samplers were tested under laboratory conditions. Sampling efficiency with respect to particle aerodynamic diameter was measured in a horizontal low wind tunnel and in a vertical calm air chamber...
August 1, 2017: Annals of Work Exposures and Health
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