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https://www.readbyqxmd.com/read/28231369/estimation-of-partitioning-of-airflow-in-septal-surgery-a-prospective-study-with-reference-to-the-nose-scale
#1
Indranil Sen, Mainak Dutta, Dibakar Haldar, Ramanuj Sinha
Improper patient selection for septal surgery often has been found to result in therapeutic failure, and there needs to be an objective assessment of nasal obstruction before the surgery and for postoperative follow-up that can be applied in the routine otolaryngology practice. The purpose of this study is to assess the usefulness of a cost-effective device for objective measurement of the nasal airway partitioning in selecting patients for septal surgery and for postoperative outcome evaluation. A hospital-based, prospective, observational study was carried out in a tertiary-care teaching institution involving 74 patients waiting for septal surgery...
February 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28231184/mineral-nutritional-yield-and-nutrient-density-of-locally-adapted-wheat-genotypes-under-organic-production
#2
Sergio Daniel Moreira-Ascarrunz, Hans Larsson, Maria Luisa Prieto-Linde, Eva Johansson
The aim of the present investigation was to investigate the nutritional yield, nutrient density, stability, and adaptability of organically produced wheat for sustainable and nutritional high value food production. This study evaluated the nutritional yield of four minerals (Fe, Zn, Cu, and Mg) in 19 wheat genotypes, selected as being locally adapted under organic agriculture conditions. The new metric of nutritional yield was calculated for each genotype and they were evaluated for stability using the Additive Main effects and Multiplicative Interaction (AMMI) stability analysis and for genotypic value, stability, and adaptability using the Best Linear Unbiased Prediction (BLUP procedure)...
December 20, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28229178/the-consummatory-and-motivational-behaviors-for-natural-rewards-following-long-term-withdrawal-from-morphine-no-anhedonia-but-persistent-maladaptive-behaviors-for-high-value-rewards
#3
Yingying Li, Xigeng Zheng, Na Xu, Yue Zhang, Zhengkui Liu, Yunjing Bai
RATIONALE: The negative affective state, e.g., anhedonia, emerges after abstinence from abused drugs may be linked to the motivational processes of drug craving and relapse. Although anhedonia diminishes over time with drug abstinence, it is not yet rather explicit whether anhedonia exists or not following protracted withdrawal. OBJECTIVES: The behavioral responses to natural rewards were examined after 2 to 3 weeks withdrawal from morphine. Male rats were pretreated with either a binge-like morphine paradigm or daily saline injection for 5 days...
February 22, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28226351/-significance-and-contemplation-of-clinical-diagnosis-and-therapy-on-the-renewal-of-the-eighth-edition-of-gastric-cancer-tnm-staging-system
#4
Hongqing Xi, Kecheng Zhang, Bo Wei, Lin Chen
TNM staging is essential for clinical decision-making and prognostic prediction for patients with gastric cancer. The 7th TNM staging manual was formulated in 2009 and implemented in 2010. However, it was published that there were some deficiencies of the 7th edition of gastric cancer TNM staging system in clinical application process, and this old staging system could not meet the clinical needs. With the cooperation and promotion of the American Joint Committee on Cancer (AJCC), the International Union for Cancer Control (UICC) and the International Gastric Cancer Association (IGCA), and through the accumulation and analysis of gastric cancer big data, the 8th TNM staging system was published at the end of 2016...
February 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28225207/ultrahigh-carrier-mobility-achieved-in-photoresponsive-hybrid-perovskite-films-via-coupling-with-single-walled-carbon-nanotubes
#5
Feng Li, Hong Wang, Dominik Kufer, Liangliang Liang, Weili Yu, Erkki Alarousu, Chun Ma, Yangyang Li, Zhixiong Liu, Changxu Liu, Nini Wei, Fei Wang, Lang Chen, Omar F Mohammed, Andrea Fratalocchi, Xiaogang Liu, Gerasimos Konstantatos, Tom Wu
Organolead trihalide perovskites have drawn substantial interest for photovoltaic and optoelectronic applications due to their remarkable physical properties and low processing cost. However, perovskite thin films suffer from low carrier mobility as a result of their structural imperfections such as grain boundaries and pinholes, limiting their device performance and application potential. Here we demonstrate a simple and straightforward synthetic strategy based on coupling perovskite films with embedded single-walled carbon nanotubes...
February 22, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28223996/untargeted-metabotyping-lolium-perenne-reveals-population-level-variation-in-plant-flavonoids-and-alkaloids
#6
Mingshu Cao, Karl Fraser, Chris Jones, Alan Stewart, Thomas Lyons, Marty Faville, Brent Barrett
Metabolomics provides a powerful platform to characterize plants at the biochemical level, allowing a search for underlying genes and associations with higher level complex traits such as yield and nutritional value. Efficient and reliable methods to characterize metabolic variation in economically important species are considered of high value to the evaluation and prioritization of germplasm and breeding lines. In this investigation, a large-scale metabolomic survey was performed on a collection of diverse perennial ryegrass (Lolium perenne L...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28223792/asthma-copd-overlap-syndrome-in-the-us-a-prospective-population-based-analysis-of-patient-reported-outcomes-and-health-care-utilization
#7
Carlos A Vaz Fragoso, Terrence E Murphy, George O Agogo, Heather G Allore, Gail J McAvay
BACKGROUND: Prior work suggests that asthma-COPD overlap syndrome (ACOS) has a greater health burden than asthma alone or COPD alone. In the current study, we have further evaluated the health burden of ACOS in a nationally representative sample of the US population, focusing on patient-reported outcomes and health care utilization and on comparisons with asthma alone and COPD alone. Patient-reported outcomes are especially meaningful, as these include functional activities that are highly valued by patients and are the basis for patient-centered care...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28223264/applying-computerized-adaptive-testing-to-the-four-dimensional-symptom-questionnaire-4dsq-a-simulation-study
#8
Tessa Magnée, Derek P de Beurs, Berend Terluin, Peter F Verhaak
BACKGROUND: Efficient screening questionnaires are useful in general practice. Computerized adaptive testing (CAT) is a method to improve the efficiency of questionnaires, as only the items that are particularly informative for a certain responder are dynamically selected. OBJECTIVE: The objective of this study was to test whether CAT could improve the efficiency of the Four-Dimensional Symptom Questionnaire (4DSQ), a frequently used self-report questionnaire designed to assess common psychosocial problems in general practice...
February 21, 2017: JMIR Mental Health
https://www.readbyqxmd.com/read/28221176/value-based-insurance-design
#9
Alok D Sharan, Gregory D Schroeder, Michael E West, Alexander R Vaccaro
The increasing awareness of the scarcity of health care resources is forcing the health care industry to improve quality while lowering the cost. One method by which employers and insurance companies are attempting to do this is with value-based insurance design. In these plans, patients pay a lower amount for certain services that are considered high value and a higher amount for services that are considered low value.
February 17, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28220903/application-of-carbohydrate-arrays-coupled-with-mass-spectrometry-to-detect-activity-of-plant-polysaccharide-degradative-enzymes-from-the-fungus-aspergillus-niger
#10
Jolanda M van Munster, Baptiste Thomas, Michel Riese, Adrienne L Davis, Christopher J Gray, David B Archer, Sabine L Flitsch
Renewables-based biotechnology depends on enzymes to degrade plant lignocellulose to simple sugars that are converted to fuels or high-value products. Identification and characterization of such lignocellulose degradative enzymes could be fast-tracked by availability of an enzyme activity measurement method that is fast, label-free, uses minimal resources and allows direct identification of generated products. We developed such a method by applying carbohydrate arrays coupled with MALDI-ToF mass spectrometry to identify reaction products of carbohydrate active enzymes (CAZymes) of the filamentous fungus Aspergillus niger...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28217004/rna-silencing-in-plants-mechanisms-technologies-and-applications-in-horticultural-crops
#11
Qigao Guo, Qing Liu, Neil A Smith, Guolu Liang, Ming-Bo Wang
Understanding the fundamental nature of a molecular process or a biological pathway is often a catalyst for the development of new technologies in biology. Indeed, studies from late 1990s to early 2000s have uncovered multiple overlapping but functionally distinct RNA silencing pathways in plants, including the posttranscriptional microRNA and small interfering RNA pathways and the transcriptional RNA-directed DNA methylation pathway. These findings have in turn been exploited for developing artificial RNA silencing technologies such as hairpin RNA, artificial microRNA, intrinsic direct repeat, 3' UTR inverted repeat, artificial trans-acting siRNA, and virus-induced gene silencing technologies...
December 2016: Current Genomics
https://www.readbyqxmd.com/read/28216587/high-yield-production-of-levulinic-acid-from-pretreated-cow-dung-in-dilute-acid-aqueous-solution
#12
Jialei Su, Feng Shen, Mo Qiu, Xinhua Qi
Agricultural waste cow dung was used as feedstock for the production of a high value-added chemical levulinic acid (LA) in dilute acid aqueous solutions. A high LA yield of 338.9 g/kg was obtained from the pretreated cow dung, which was much higher than that obtained from the crude cow dung (135 g/kg), mainly attributed to the breakage of the lignin fraction in the lignocellulose structure of the cow dung by potassium hydroxide (KOH) pretreatment, and thus enhanced the accessibility of cow dung to the acid sites in the catalytic reaction...
February 14, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28216383/large-scale-analysis-of-crispr-cas9-cell-cycle-knockouts-reveals-the-diversity-of-p53-dependent-responses-to-cell-cycle-defects
#13
Kara L McKinley, Iain M Cheeseman
Defining the genes that are essential for cellular proliferation is critical for understanding organismal development and identifying high-value targets for disease therapies. However, the requirements for cell-cycle progression in human cells remain incompletely understood. To elucidate the consequences of acute and chronic elimination of cell-cycle proteins, we generated and characterized inducible CRISPR/Cas9 knockout human cell lines targeting 209 genes involved in diverse cell-cycle processes. We performed single-cell microscopic analyses to systematically establish the effects of the knockouts on subcellular architecture...
February 9, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28211550/assessment-of-depressiveness-in-population-psychometric-evaluation-of-the-polish-version-of-the-cesd-r
#14
Karolina Koziara
OBJECTIVES: Psychometric evaluation of reliability and usefulness of the Polish version of the CESD-R - a revised version of the CES-D - screening test for depression. METHODS: In an online survey the CESD-R and the Beck Depression Inventory were applied to 260 participants (men and women). Reliability was assessed with Cronbach's method and split-half (odd-even) method. Same as in the original English publication, factor analysis was performed and three factors were distinguished...
December 23, 2016: Psychiatria Polska
https://www.readbyqxmd.com/read/28211495/characterization-of-biocarbon-source-recovery-and-microbial-community-shifts-from-waste-activated-sludge-by-conditioning-with-cornstover-assessment-of-cellulosic-compositions
#15
Kaili Wen, Aijuan Zhou, Jiaguang Zhang, Zhihong Liu, Guoying Wang, Wenzong Liu, Aijie Wang, Xiuping Yue
Most studies on the production of volatile fatty acids (VFAs) from waste activated sludge (WAS) digestion have focused on operating conditions, pretreatments and characteristic adjustments. Conditioning by extra carbon sources (ECS), normally added in a solid form, has been reported to be an efficient approach. However, this has caused considerable waste of monomeric sugars in the hydrolysate. In this study, the effects of two added forms (pretreated straw (S) and hydrolyzed liquid (L)) of cornstover (CS) on WAS acidification were investigated...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211005/resequencing-and-annotation-of-the-nostoc-punctiforme-attc-29133-genome-facilitating-biofuel-and-high-value-chemical-production
#16
Luis E Moraes, Matthew J Blow, Erik R Hawley, Hailan Piao, Rita Kuo, Jennifer Chiniquy, Nicole Shapiro, Tanja Woyke, James G Fadel, Matthias Hess
Cyanobacteria have the potential to produce bulk and fine chemicals and members belonging to Nostoc sp. have received particular attention due to their relatively fast growth rate and the relative ease with which they can be harvested. Nostoc punctiforme is an aerobic, motile, Gram-negative, filamentous cyanobacterium that has been studied intensively to enhance our understanding of microbial carbon and nitrogen fixation. The genome of the type strain N. punctiforme ATCC 29133 was sequenced in 2001 and the scientific community has used these genome data extensively since then...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28210796/optogenetic-switches-for-light-controlled-gene-expression-in-yeast
#17
REVIEW
Francisco Salinas, Vicente Rojas, Verónica Delgado, Eduardo Agosin, Luis F Larrondo
Light is increasingly recognized as an efficient means of controlling diverse biological processes with high spatiotemporal resolution. Optogenetic switches are molecular devices for regulating light-controlled gene expression, protein localization, signal transduction and protein-protein interactions. Such molecular components have been mainly developed through the use of photoreceptors, which upon light stimulation undergo conformational changes passing to an active state. The current repertoires of optogenetic switches include red, blue and UV-B light photoreceptors and have been implemented in a broad spectrum of biological platforms...
February 16, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28210019/the-correlation-between-prostate-volume-in-patients-with-benign-prostatic-hyperplasia-in-relation-to-erectile-dysfunction
#18
Amel Kardasevic, Snjezana Milicevic
INTRODUCTION: The exact etiology of lower urinary tract symptoms caused by benign prostatic hyperplasia (BPH) has not yet been determined, and the etiology of erectile dysfunction (ED) is often multicausal and includes organic and/or psychogenic causes, as well as their combinations. Although the relation of BPH, and thus the volume of the prostate (VP) with ED is indisputable, precise mechanisms of integration are still under examination. GOAL: The objective was to evaluate the correlation between prostate volume and degree of erectile dysfunction in patients with symptoms of lower urinary tract caused by benign prostatic hyperplasia...
December 2016: Medical Archives
https://www.readbyqxmd.com/read/28208644/novel-magnetic-cross-linked-cellulase-aggregates-with-a-potential-application-in-lignocellulosic-biomass-bioconversion
#19
Junqi Jia, Weiwei Zhang, Zengjie Yang, Xianling Yang, Na Wang, Xiaoqi Yu
The utilization of renewable biomass resources to produce high-value chemicals by enzymatic processes is beneficial for alternative energy production, due to the accelerating depletion of fossil fuels. As immobilization techniques can improve enzyme stability and reusability, a novel magnetic cross-linked cellulase aggregate has been developed and applied for biomass bioconversion. The crosslinked aggregates could purify and immobilize enzymes in a single operation, and could then be combined with magnetic nanoparticles (MNPs), which provides easy separation of the materials...
February 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28208448/conducting-insulating-transition-in-adiabatic-memristive-networks
#20
Forrest C Sheldon, Massimiliano Di Ventra
The development of neuromorphic systems based on memristive elements-resistors with memory-requires a fundamental understanding of their collective dynamics when organized in networks. Here, we study an experimentally inspired model of two-dimensional disordered memristive networks subject to a slowly ramped voltage and show that they undergo a discontinuous transition in the conductivity for sufficiently high values of memory, as quantified by the memristive ON-OFF ratio. We investigate the consequences of this transition for the memristive current-voltage characteristics both through simulation and theory, and demonstrate the role of current-voltage duality in relating forward and reverse switching processes...
January 2017: Physical Review. E
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