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https://www.readbyqxmd.com/read/28724229/microbial-association-with-the-dynamics-of-particulate-organic-carbon-in-response-to-the-amendment-of-elevated-co2-derived-wheat-residue-into-a-mollisol
#1
Yanhong Wang, Zhenhua Yu, Yansheng Li, Guanghua Wang, Junjie Liu, Judong Liu, Xiaobing Liu, Jian Jin
As the chemical quality of crop residue is likely to be affected by elevated CO2 (eCO2), residue amendments may influence soil organic carbon (SOC) sequestration. However, in Mollisols, the dynamics of the SOC fractions in response to amendment with wheat residue produced under eCO2 and the corresponding microbial community composition remain unknown. Such investigation is essential to residue management, which affects the soil quality and productivity of future farming systems. To narrow this knowledge gap, (13)C-labeled shoot and root residue derived from ambient CO2 (aCO2) or eCO2 were amended into Mollisols and incubated for 200days...
July 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724227/carbon-and-nitrogen-allocation-strategy-in-posidonia-oceanica-is-altered-by-seawater-acidification
#2
Andrea Scartazza, Stefano Moscatello, Olga Gavrichkova, Maria Cristina Buia, Marco Lauteri, Alberto Battistelli, Maurizio Lorenti, Samantha Laird Garrard, Carlo Calfapietra, Enrico Brugnoli
Rising atmospheric CO2 causes ocean acidification that represents one of the major ecological threats for marine biota. We tested the hypothesis that long-term exposure to increased CO2 level and acidification in a natural CO2 vent system alters carbon (C) and nitrogen (N) metabolism in Posidonia oceanica L. (Delile), affecting its resilience, or capability to restore the physiological homeostasis, and the nutritional quality of organic matter available for grazers. Seawater acidification decreased the C to N ratio in P...
July 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28724165/cytogenotoxicity-of-inclusion-complexes-of-diazepam-with-2-hydroxypropyl-%C3%AE-cyclodextrin
#3
Jasmina Hadžiabdić, Nevenka Kopjar, Davor Želježić, Selma Špirtović-Halilović, Davorka Završnik
Background Diazepam, as one of the most frequent prescribed drug from 1,4-benzodiazepine group, has certain limitations in pharmaceutical technology due to its poor solubility in water. By forming inclusion complexes with 2-hydroxypropyl-β-cyclodextrin, diazepam's biopharmaceutical properties can be greatly improved. Aim Aim of this research was to in vitro evaluate genotoxicity of prepared novel complexes of diazepam and their influence on proliferation of human peripheral blood lymphocytes. Methods For identification of possible genotoxicity of diazepam inclusion complexes, cytokinesis-block micronucleus assay has been chosen...
July 19, 2017: Drug Research
https://www.readbyqxmd.com/read/28724104/fate-characterization-of-benzene-kresoxim-methyl-a-strobilurin-fungicide-in-different-aerobic-soils
#4
Jinhao Zhao, Likun Wang, Jingli Cheng, Wei Wang, Qingfu Ye
Benzene kresoxim-methyl (BKM) is a promising broad-spectrum strobilurin fungicide widely used to control fungal pathogens in crops. However, information on its environmental fate is limited. To broaden our understanding of this fungicide's kinetic fate in aerobic soils, we labeled BKM with C on its benzoate ring and used ultralow-level liquid scintillation counting coupled with high-performance liquid chromatography analysis. Results show that degradation, mineralization, and bound residue (BR) formation of BKM was controlled by soil type and microbial community composition...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724102/impact-of-biochar-organic-and-inorganic-carbon-on-soil-co2-and-n2o-emissions
#5
Rivka B Fidel, David A Laird, Timothy B Parkin
Biochar has been shown to influence soil CO and NO emissions following application to soil, but the presence of carbonates in biochars has largely confounded efforts to differentiate among labile and recalcitrant C pools in biochar and establish their timeframe of influence. Understanding the mechanism, magnitude, and duration of biochar C pools' influence on C and N dynamics is imperative to successful implementation of biochar for C sequestration. Here we therefore aim to assess biochar organic and inorganic C pool impacts on CO and NO emissions from soil amended with two untreated biochars, inorganic carbon (as NaCO), acid (HCl) and bicarbonate (NaHCO) extracts of the biochars, and acid and bicarbonate/acid-washed biochars during a 140-d soil incubation...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28724075/a-comprehensive-image-based-phenomic-analysis-reveals-the-complex-genetic-architecture-of-shoot-growth-dynamics-in-rice-oryza-sativa
#6
Malachy T Campbell, Qian Du, Kan Liu, Chris J Brien, Bettina Berger, Chi Zhang, Harkamal Walia
Early vigor is an important trait for many rice ( L.)-growing environments. However, genetic characterization and improvement for early vigor is hindered by the temporal nature of the trait and strong genotype × environment effects. We explored the genetic architecture of shoot growth dynamics during the early and active tillering stages by applying a functional modeling and genomewide association (GWAS) mapping approach on a diversity panel of ∼360 rice accessions. Multiple loci with small effects on shoot growth trajectory were identified, indicating a complex polygenic architecture...
July 2017: Plant Genome
https://www.readbyqxmd.com/read/28724043/compulsory-notification-at-skilled-nursing-facilities
#7
Milton Luiz Gorzoni, Márcia Regina Valadares Aguado, Sueli Luciano Pires, Lilian de Fátima Costa Faria
Introduction: Notifiable diseases (NDs) encompass conditions of high clinical severity and/or contagious. Being closed communities, long-term care facilities (LTCF) are places that deserve attention on their own, but one might be left wondering: what is the reality of NDs at Brazilian LTCFs? Objective: To determine the prevalence and type of NDs at large LTCF. Method: Active search for NDs conducted by the Hospital Infection Control Committee (HICC) in 459 beds...
May 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28724040/cardiac-remodeling-indicators-in-adolescent-athletes
#8
Joaquim Castanheira, João Valente-Dos-Santos, Daniela Costa, Diogo Martinho, Jorge Fernandes, João Duarte, Nuno Sousa, Vasco Vaz, Luis Rama, António Figueiredo, Manuel Coelho-E-Silva
Objective: The idea that different sports and physical training type results in different cardiac adaptations has been widely accepted. However, this remodelling process among different sport modalities is still not fully understood. Thus, the current study aims to investigate the heart morphology variation associated with a set of different modalities characterized by distinct models of preparation and different methods and demands of training and completion. Method: The sample comprises 42 basketball players, 73 roller hockey players, 28 judo athletes and 21 swimmers...
May 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28724017/food-risk-regulation-the-tensions-of-the-brazilian-health-surveillance-system
#9
Ana Virgínia Almeida Figueiredo, Elisabetta Recine, Renata Monteiro
This article addresses the dynamics of Brazilian food control practices, highlighting their special risk-related features and the types of intervention, as well as the recently adopted instruments to control risks related to the nutritional composition of food and their institutional repercussions. Food regulation in Brazil dates back to the First Republic. The practice has been remodeled over the years, due to both the increasing complexity of the risks and the introduction of new institutional operational mechanisms...
July 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28723957/brain-synchronization-during-perception-of-facial-emotional-expressions-with-natural-and-unnatural-dynamics
#10
Dionysios Perdikis, Jakob Volhard, Viktor Müller, Kathrin Kaulard, Timothy R Brick, Christian Wallraven, Ulman Lindenberger
Research on the perception of facial emotional expressions (FEEs) often uses static images that do not capture the dynamic character of social coordination in natural settings. Recent behavioral and neuroimaging studies suggest that dynamic FEEs (videos or morphs) enhance emotion perception. To identify mechanisms associated with the perception of FEEs with natural dynamics, the present EEG (Electroencephalography)study compared (i) ecologically valid stimuli of angry and happy FEEs with natural dynamics to (ii) FEEs with unnatural dynamics, and to (iii) static FEEs...
2017: PloS One
https://www.readbyqxmd.com/read/28723946/the-mitochondrial-genome-of-the-terrestrial-carnivorous-plant-utricularia-reniformis-lentibulariaceae-structure-comparative-analysis-and-evolutionary-landmarks
#11
Saura R Silva, Danillo O Alvarenga, Yani Aranguren, Helen A Penha, Camila C Fernandes, Daniel G Pinheiro, Marcos T Oliveira, Todd P Michael, Vitor F O Miranda, Alessandro M Varani
The carnivorous plants of the family Lentibulariaceae have attained recent attention not only because of their interesting lifestyle, but also because of their dynamic nuclear genome size. Lentibulariaceae genomes span an order of magnitude and include species with the smallest genomes in angiosperms, making them a powerful system to study the mechanisms of genome expansion and contraction. However, little is known about mitochondrial DNA (mtDNA) sequences of this family, and the evolutionary forces that shape this organellar genome...
2017: PloS One
https://www.readbyqxmd.com/read/28723940/modeling-the-dynamics-of-chromosomal-alteration-progression-in-cervical-cancer-a-computational-model
#12
Augusto Cabrera-Becerril, Cruz Vargas-De-León, Sergio Hernández, Pedro Miramontes, Raúl Peralta
Computational modeling has been applied to simulate the heterogeneity of cancer behavior. The development of Cervical Cancer (CC) is a process in which the cell acquires dynamic behavior from non-deleterious and deleterious mutations, exhibiting chromosomal alterations as a manifestation of this dynamic. To further determine the progression of chromosomal alterations in precursor lesions and CC, we introduce a computational model to study the dynamics of deleterious and non-deleterious mutations as an outcome of tumor progression...
2017: PloS One
https://www.readbyqxmd.com/read/28723913/prebiotic-selection-for-motifs-in-a-model-of-template-free-elongation-of-polymers-within-compartments
#13
Grant Kinsler, Sam Sinai, Nicholas Keone Lee, Martin A Nowak
The transition from prelife where self-replication does not occur, to life which exhibits self-replication and evolution, has been a subject of interest for many decades. Membranes, forming compartments, seem to be a critical component of this transition as they provide several concurrent benefits. They maintain localized interactions, generate electro-chemical gradients, and help in selecting cooperative functions as they arise. These functions pave the way for the emergence and maintenance of simple metabolic cycles and polymers...
2017: PloS One
https://www.readbyqxmd.com/read/28723910/estimating-mono-and-bi-phasic-regression-parameters-using-a-mixture-piecewise-linear-bayesian-hierarchical-model
#14
Rui Zhao, Paul Catalano, Victor G DeGruttola, Franziska Michor
The dynamics of tumor burden, secreted proteins or other biomarkers over time, is often used to evaluate the effectiveness of therapy and to predict outcomes for patients. Many methods have been proposed to investigate longitudinal trends to better characterize patients and to understand disease progression. However, most approaches assume a homogeneous patient population and a uniform response trajectory over time and across patients. Here, we present a mixture piecewise linear Bayesian hierarchical model, which takes into account both population heterogeneity and nonlinear relationships between biomarkers and time...
2017: PloS One
https://www.readbyqxmd.com/read/28723886/prolonged-viral-replication-and-longitudinal-viral-dynamic-differences-among-respiratory-syncytial-virus-rsv-infected-infants
#15
Monica E Brint, Joshua M Hughes, Aditya Shah, Chelsea R Miller, Lisa G Harrison, Elizabeth A Meals, Jacqueline Blanch, Charlotte R Thompson, Stephania A Cormier, John P DeVincenzo
BACKGROUND: Longitudinal RSV dynamics have not been well-studied despite existence of factors favoring prolonged RSV replication including: high mutation rates allowing rapid evolution and potential escape from immune control. We therefore measured viral load in previously RSV-naïve infants over prolonged time-spans. METHODS: During 2014-2015, quantitative nasal aspirates were collected from 51 RSV-PCR+ infants. Multiple parallel assessments of viral loads were quantified at each collected time point using a well-validated real-time qRT-PCR assay...
July 19, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28723821/can-a-balance-wristband-influence-postural-control
#16
Sven Eichhorn, Sonja Foerster, Benedikt Friemert, Christian Willy, Hans-Joachim Riesner, Hans-Georg Palm
Top sports performances cannot be achieved without a high level of postural control. Balance wristbands purport to improve the mental and physical balance of the wearer. It is still unclear, however, whether these wristbands can indeed enhance postural control. Our purpose was to ascertain by means of computerized dynamic posturography whether balance wristbands can improve postural stability.In this randomized controlled single-blind clinical study, posturography was used to assess postural control in 179 healthy subjects with or without a balance wristband...
July 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28723819/exploring-game-dynamics-in-padel-implications-for-assessment-and-training
#17
Javier Courel-Ibáñez, Bernardino J Sánchez-Alcaraz Martinez, Diego Muñoz Marín
A better understanding of in-game competition demands potentially improves coaching strategy and quality. However, there is very limited information about game patterns in padel, a very modern racket sport born in the 70'. The purpose of this study was therefore to quantify and classify game dynamics during the match in professional padel players through a multivariate decision tree approach including technical, spatial and effectiveness indicators. The results determined three main game styles strongly defined by the court zone (net, middle and baseline)...
July 17, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28723741/characterization-of-small-%C3%A2-3%C3%A2-cm-hepatic-lesions-with-atypical-enhancement-feature-and-hypointensity-in-hepatobiliary-phase-of-gadoxetic-acid-enhanced-mri-in-cirrhosis-a-stard-compliant-article
#18
Seung Kak Shin, Yun Soo Kim, Seung Joon Choi, Young Sup Shim, Dong Hae Jung, Oh Sang Kwon, Duck Joo Choi, Ju Hyun Kim
It is difficult to characterize the nodular lesions in cirrhotic liver if typical enhancement pattern is not present on dynamic contrast-enhanced imagings. Although the signal intensity of the hepatobiliary phase in gadoxetic acid-enhanced magnetic resonance imaging (MRI) is helpful for characterization of the lesions, some dysplastic nodules may also exhibit low signal intensity in the hepatobiliary phase. We aimed to assess the usefulness of gadoxetic acid (Gd-EOB-DTPA)-enhanced MRI including diffusion-weighted imaging (DWI) for differentiation between atypical small hepatocellular carcinomas (HCCs) and dysplastic nodules showing low signal intensity (SI) in the hepatobiliary phase, and to evaluate the MRI findings in determining the histological grade of atypical HCCs in patients with cirrhosis...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28723737/how-to-choose-when-implants-of-adjacent-height-both-fit-the-disc-space-properly-in-single-level-cervical-artificial-disc-replacement
#19
Xin Rong, Jigang Lou, Huibo Li, Yang Meng, Hao Liu
In cervical artificial disc replacement (C-ADR), sometimes we encountered with such cases that implants of adjacent height both fit the target disc space properly. No study was available discussing the choice of implant height and the clinical outcomes under such circumstance. The purpose of this study was to evaluate the impact of different implant heights on the clinical outcomes and radiographic results when the implants of adjacent height both fit the disc space properly. This retrospective study included 34 patients underwent single-level C-ADR at the C5-C6 level at our institution...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28723729/wnt-signaling-in-cardiovascular-disease-opportunities-and-challenges
#20
Austin Gay, Dwight A Towler
PURPOSE OF REVIEW: Cardiometabolic diseases increasingly afflict our aging, dysmetabolic population. Complex signals regulating low-density lipoprotein receptor-related protein (LRP) and frizzled protein family members - the plasma membrane receptors for the cadre of Wnt polypeptide morphogens - contribute to the control of cardiovascular homeostasis. RECENT FINDINGS: Both canonical (β-catenin-dependent) and noncanonical (β-catenin-independent) Wnt signaling programs control vascular smooth muscle (VSM) cell phenotypic modulation in cardiometabolic disease...
July 18, 2017: Current Opinion in Lipidology
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