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https://www.readbyqxmd.com/read/28432969/quantitative-effects-of-amination-degree-on-the-magnetic-iron-oxide-nanoparticles-mionps-using-as-adsorbents-to-remove-aqueous-heavy-metal-ions
#1
Sen Lin, Meng Xu, Wei Zhang, Xiufu Hua, Kuangfei Lin
The hierarchical effect of amine-functionalization on nanoparticle properties, magnetism especially, and adsorption of Cu(2+), Ni(2+), Pb(2+) and Zn(2+) by aminated MIONPs were investigated elaboratively. The results reflected that the dispersibility and stability of nanoparticles in aqueous solution were both enhanced as MIONPs grafted with amine groups, while saturation magnetism and magnetic recovery conveniences had a negatively correlative relation with the amination degree. In addition, the adsorption performances of Cu(2+), Ni(2+), Pb(2+) and Zn(2+) by different aminated MIONPs were also studied comprehensively...
January 16, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28432894/the-structure-correlates-and-treatment-related-changes-of-mindfulness-facets-across-the-anxiety-disorders-and-obsessive-compulsive-disorder
#2
Lance L Hawley, Jenny Rogojanski, Valerie Vorstenbosch, Lena C Quilty, Judith M Laposa, Neil A Rector
Research with non-clinical and clinical samples has examined how mindfulness concepts relate to psychological symptom presentations. However, there is less clarity when examining treatment-seeking patients who experience DSM-diagnosed anxiety and obsessional disorders - both cross-sectionally, and following empirically-supported treatments. The Five Facet Mindfulness Questionnaire (FFMQ; Baer, Smith, Hopkins, Krietemeyer, & Toney, 2006) conceptualizes mindfulness as consisting of five facets: Observing, Describing, Acting with Awareness, Nonreactivity, and Nonjudging...
March 14, 2017: Journal of Anxiety Disorders
https://www.readbyqxmd.com/read/28432863/prevalence-and-factors-associated-with-breast-milk-donation-in-banks-that-receive-human-milk-in-primary-health-care-units
#3
Tatiana Mota Xavier de Meneses, Maria Inês Couto de Oliveira, Cristiano Siqueira Boccolini
OBJECTIVE: To estimate the prevalence and to analyze factors associated with breast milk donation at primary health care units in order to increase the human milk bank reserves. METHODS: Cross-sectional study carried out in 2013 in Rio de Janeiro, Brazil. A representative sample of 695 mothers of children younger than 1 year attended to at the nine primary health care units with human milk donation services were interviewed. A hierarchical approach was used to obtain adjusted prevalence ratios (APR) by Poisson regression with robust variance...
April 19, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/28432499/depressive-symptoms-and-tobacco-use-does-religious-orientation-play-a-protective-role
#4
Stacy C Parenteau
Many studies have established an association between depression and smoking. The main objective of this study was to determine whether religious orientation moderates the relationship between depressive symptoms and tobacco use. This study utilized a cross-sectional data collection strategy to examine the relationship among depressive symptoms, religious orientation, and tobacco use among undergraduate students (N = 349) at a midsize southeastern university. Participants completed a demographic questionnaire, the Center for Epidemiologic Studies Depression Scale, the Extrinsic/Intrinsic Religious Orientation Scale-Revised and the Drinking and Drug Habits Questionnaire...
April 21, 2017: Journal of Religion and Health
https://www.readbyqxmd.com/read/28432272/establishment-of-an-in-vitro-culture-model-of-theca-cells-from-hierarchical-follicles-in-ducks
#5
Xiang Gan, da Chen, Yan Deng, Junsong Yuan, Bo Kang, Jiamin Qiu, Wenqiang Sun, Chunchun Han, Jiwei Hu, Liang Li, Jiwen Wang
Theca cells, including theca interna cells and theca externa cells, are vital components of ovarian follicles. The aim of this study is to identify a reliable method for the in vitro culture of theca cells from duck ovarian hierarchical (F4-F2) follicles. We improved the method for cell separation by using trypsin to further remove granular cells, and we increased the concentration of fetal bovine serum used in in vitro culture to improve cytoactivity. Cell antibody immunofluorescence showed that all inoculated cells could be stained by the CYP17A1/19A1 antibody but not by the FSHR antibody, which could stain granulosa cells...
April 21, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28431359/reconstruction-of-microbial-community-structures-as-evidences-for-soil-redox-coupled-reductive-dechlorination-of-pcp-in-a-mangrove-soil
#6
Yan Xu, Yan He, Xianjin Tang, Philip C Brookes, Jianming Xu
The aim was to investigate the influence of pentachlorophenol (PCP) on the soil microbial communities and the coupled mechanism between PCP reductive dechlorination and soil redox under anaerobic condition. Accordingly, a slurry incubation experiment was carried out in which bacterial and archaeal communities were detected by MiSeq amplicon sequencing. The original microbial community balance was gradually disrupted and new microbial structure was reconstructed subsequently through self-regulation and acclimation during PCP transformation, coupling with the changes of soil biogeochemical redox dynamics...
April 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28431331/dielectric-properties-of-a-novel-colloidal-oral-matrix-drug-carrier
#7
Alexander Vol, Orna Gribova, Oded Shamir, Evgeniya Levy, Paul Ben Ishai, Anna Greenbaum Gutina, Yuri Feldman
Dielectric Spectroscopy (DS) was employed to study a novel oral matrix carrier (OMC), composed from silica nano-particles, polysaccharides, biopolymers and natural oils. This composition self-orders to a multi hierarchal structure and as such is amenable to be studied by techniques such as DS. The dielectric properties were measured in the frequency range 1MHz-1GHz and a temperature range 10°C-45°C. The results were dominated by two relaxation processes following CC relaxation and having relaxation times that are Arrhenius in nature...
April 12, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28431307/identifying-longitudinal-sustainable-hierarchies-in-activities-of-daily-living
#8
Roger Watson, Alvisa Palese, Ranieri Zuttion, Barbara Ferrario, Sandra Ponta, Mark Hayter
Activities of daily living serve as an indicator of progression in disability and rehabilitation. It is know that some of the measurement scales used show hierarchical properties indicating that activities of daily living are lost and gained in a consistent pattern. Few studies have investigated the extent to which these patterns are sustained across time and across a range of disability. The study aimed to investigate the hierarchical properties of the activity of daily living items in the ValGraf functional ability scale, to establish if there is a hierarchy of items in the scale and to study the sustainability of the hierarchy over time...
April 12, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28430978/culture-matters-indigenizing-patient-safety-in-bhutan
#9
Rinchen Pelzang, Megan-Jane Johnstone, Alison M Hutchinson
Studies show that if quality of healthcare in a country is to be achieved, due consideration must be given to the importance of the core cultural values as a critical factor in improving patient safety outcomes. The influence of Bhutan's traditional (core) cultural values on the attitudes and behaviours of healthcare professionals regarding patient care are not known. This study aimed to explore the possible influence of Bhutan's traditional cultural values on staff attitudes towards patient safety and quality care...
April 17, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28430928/typology-and-dynamics-of-heavier-drinking-styles-in-great-britain-1978-2010
#10
Robin C Purshouse, Alan Brennan, Daniel Moyo, James Nicholls, Paul Norman
Aims: To identify a typology of heavier drinking styles in Great Britain and to identify socio-demographic trends in the typology over the period 1978-2010. Methods: We applied multiple correspondence analysis and agglomerative hierarchical clustering to beverage-specific quantity-frequency measures of alcohol consumption in the repeated cross-sectional General Lifestyle Survey of Great Britain, 1978-2010. The cluster analysis focuses on the 60,043 adult respondents over this period reporting average drinking levels above the UK Government guidelines...
May 1, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28430808/quantification-of-hypoxia-related-gene-expression-as-a-potential-approach-for-clinical-outcome-prediction-in-breast-cancer
#11
Abderrahim El Guerrab, Anne Cayre, Fabrice Kwiatkowski, Maud Privat, Jean-Marc Rossignol, Fabrice Rossignol, Frédérique Penault-Llorca, Yves-Jean Bignon
Breast cancers are solid tumors frequently characterized by regions with low oxygen concentrations. Cellular adaptations to hypoxia are mainly determined by "hypoxia inducible factors" that mediate transcriptional modifications involved in drug resistance and tumor progression leading to metastasis and relapse occurrence. In this study, we investigated the prognostic value of hypoxia-related gene expression in breast cancer. A systematic review was conducted to select a set of 45 genes involved in hypoxia signaling pathways and breast tumor progression...
2017: PloS One
https://www.readbyqxmd.com/read/28430641/the-regulation-of-%C3%AE-catenin-activity-and-function-in-cancer-therapeutic-opportunities
#12
REVIEW
Shuang Shang, Fang Hua, Zhuo-Wei Hu
Wnt/β-catenin signaling is an evolutionarily conserved and versatile pathway that is known to be involved in embryonic development, tissue homeostasis and a wide variety of human diseases. Aberrant activation of this pathway gives rise to the accumulation of β-catenin in the nucleus and promotes the transcription of many oncogenes such as c-Myc and CyclinD-1. As a result, it contributes to carcinogenesis and tumor progression of several cancers, including colon cancer, hepatocellular carcinoma, pancreatic cancer, lung cancer and ovarian cancer...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430557/utilization-management-of-high-cost-imaging-in-an-outpatient-setting-in-a-large-stable-patient-and-provider-cohort-over-7-years
#13
Jeffrey B Weilburg, Christopher L Sistrom, Daniel I Rosenthal, Markus B Stout, Keith J Dreyer, Helaine R Rockett, Jason M Baron, Timothy G Ferris, James H Thrall
Purpose To quantify the effect of a comprehensive, long-term, provider-led utilization management (UM) program on high-cost imaging (computed tomography, magnetic resonance imaging, nuclear imaging, and positron emission tomography) performed on an outpatient basis. Materials and Methods This retrospective, 7-year cohort study included all patients regularly seen by primary care physicians (PCPs) at an urban academic medical center. The main outcome was the number of outpatient high-cost imaging examinations per patient per year ordered by the patient's PCP or by any specialist...
April 21, 2017: Radiology
https://www.readbyqxmd.com/read/28429715/mapping-clinicopathological-entities-within-colorectal-mucinous-adenocarcinomas-a-hierarchical-clustering-approach
#14
Charly Liddell, Laure Droy-Dupré, Sylvie Métairie, Fabrice Airaud, Christelle Volteau, Stéphane Bezieau, Christian L Laboisse, Jean-François Mosnier
The aim of this study was to interrogate the heterogeneity of colorectal mucinous adenocarcinomas. This study is based on hierarchical clustering approach combining clinicopathological and molecular patterns known to be relevant to oncogenesis and therapeutic management of patients with colorectal carcinoma, ie, microsatellite instability, O6-methylguanine-DNA methyltransferase (MGMT) status, KRAS, and BRAF mutations and wnt signaling pathway activation. Comparison of the study group of 60 mucinous adenocarcinomas defined according to World Health Organization classification with control group of 136 colorectal adenocarcinomas successively removed shows higher frequency of BRAF and KRAS mutations and microsatellite instability-high status and lower frequency of wnt signaling pathway activation in mucinous adenocarcinomas...
April 21, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28429633/the-reliability-of-multidimensional-neuropsychological-measures-from-alpha-to-omega
#15
Marley W Watkins
OBJECTIVE: To demonstrate that Coefficient omega, a model-based estimate, is more a more appropriate index of reliability than coefficient alpha for the multidimensional scales that are commonly employed by neuropsychologists. METHOD: As an illustration, a structural model of an overarching general factor and four first-order factors for the WAIS-IV based on the standardization sample of 2200 participants was identified and omega coefficients were subsequently computed for WAIS-IV composite scores...
April 21, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28429562/predictors-of-the-health-related-quality-of-life-of-chinese-people-with-major-neurocognitive-disorders-and-their-caregivers-the-roles-of-self-esteem-and-caregiver-s-burden
#16
Daniel Kim-Wan Young, Petrus Yat-Nam Ng, Timothy Kwok
AIM: The present research study aimed to identify and compare the clinical and non-clinical factors that predict the self-reported and proxy-reported health-related quality of life (HRQoL) of people with major neurocognitive disorder (PwND) who are living at home in a Chinese society. METHODS: A total of 57 Chinese PwND-family caregiver dyads that were using the services of local senior centers were recruited through a cross-sectional survey with convenience sampling...
April 20, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28429470/meta-analysis-combining-parallel-and-cross-over-trials-with-random-effects
#17
François Curtin
Meta-analysis can necessitate the combination of parallel and cross-over trial designs. Because of the differences in the trial designs and potential biases notably associated with the crossover trials, one often combines trials of the same designs only, which decreases the power of the meta-analysis. To combine results of clinical trials from parallel and cross-over designs, we extend the method proposed in an accompanying study to account for random effects. We propose here a hierarchical mixed model allowing the combination of the 2 types of trial designs and accounting for additional covariates where random effects can be introduced to account for heterogeneity in trial, treatment effect, and interactions...
April 21, 2017: Research Synthesis Methods
https://www.readbyqxmd.com/read/28428994/a-facile-self-templating-synthesis-of-carbon-frameworks-with-tailored-hierarchical-porosity-for-enhanced-energy-storage-performance
#18
Jie Yang, Gaoran Li, Meidan Cai, Pengju Pan, Zhoupeng Li, Yongzhong Bao, Zhongwei Chen
Herein, we present a facile synthesis of hierarchical carbon frameworks with microporous skeletons and interconnected meso/macropores by employing poly(vinylidene chloride-co-methyl acrylate)-b-polystyrene copolymers as precursors. The obtained porosity can be tuned over a broad range via well-selected block proportions of the precursor, enabling its advantageous applications in target-oriented energy storage systems.
April 21, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28428544/strain-softening-of-nano-scale-fuzzy-interfaces-causes-mullins-effect-in-thermoplastic-polyurethane
#19
T Sui, E Salvati, S Ying, G Sun, I P Dolbnya, K Dragnevski, C Prisacariu, A M Korsunsky
The strain-induced softening of thermoplastic polyurethane elastomers (TPUs), known as the Mullins effect, arises from their multi-phase structure. We used the combination of small- and wide- angle X-ray scattering (SAXS/WAXS) during in situ repeated tensile loading to elucidate the relationship between molecular architecture, nano-strain, and macro-scale mechanical properties. Insights obtained from our analysis highlight the importance of the 'fuzzy interface' between the hard and soft regions that governs the structure evolution at nanometre length scales and leads to macroscopic stiffness reduction...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28428141/temporal-impact-of-the-vascular-wilt-pathogen-verticillium-dahliae-on-tomato-root-proteome
#20
Katja Witzel, Anja Buhtz, Rita Grosch
The soil-borne fungus Verticillium dahliae is the causal agent of wilting disease and affects a wide range of plant species worldwide. Here, we report on the time-resolved analysis of the tomato root proteome in response to fungal colonization. Tomato (Solanum lycopersicum cv. Hildares) was inoculated with V. dahliae at the two-leaf stage and roots were harvested at 7, 14 and 21 days post inoculation (dpi). In order to identify proteins related to the fungal spread at the different time points, a subsequent proteome analysis by two-dimensional differential gel electrophoresis (2D-DIGE) was conducted on samples from three independent experiments...
April 17, 2017: Journal of Proteomics
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