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https://www.readbyqxmd.com/read/29677674/spatial-temporal-change-of-land-surface-temperature-across-285-cities-in-china-an-urban-rural-contrast-perspective
#1
Jian Peng, Jing Ma, Qianyuan Liu, Yanxu Liu, Yi'na Hu, Yingru Li, Yuemin Yue
As an important theme in global climate change and urban sustainable development, the changes of land surface temperature (LST) and surface urban heat island (SUHI) have been more and more focused by urban ecologists. This study used land-use data to identify the urban-rural areas in 285 cities in China and comparatively analyzed LST in urban-rural areas with the perspective of spatial-temporal dynamics heterogeneity. The results showed that, 98.9% of the cities exhibited SUHI effect in summer nighttime and the effect was stronger in northern cities than that in southern cities...
April 17, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29677623/cerebrospinal-fluid-fgf23-levels-correlate-with-a-measure-of-impulsivity
#2
Hui Li, Zhiyong Cao, Jinzhong Xu, Fan Wang, Rongrong Xiong, Zeping Xu, Xianming Luo, Guohua Li, Xingqi Tan, Zhiyang Liu, Zhiqin Gao, Yimin Kang, Jian Xiao, Yanlong Liu, Xiaokun Li
Fibroblast growth factor 23 (FGF23) is a bone-derived protein produced mainly by osteocytes and osteoblasts and at low levels in specific parts of the brain. It has been shown to associate with mood regulation. Lithium treatment gives rise to significant elevations of serum FGF23 levels in depressive patients. High peripheral blood FGF23 levels correlated with poor cognitive performance in hemodialysis patients. However, no direct evidence demonstrates a relationship between FGF23 and mood regulation. In this study, we aimed to measure the concentration of cerebrospinal fluid (CSF) FGF23 and to explore its relationship with a cluster of emotional characteristics...
April 12, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29677613/swollen-mixed-pluronic-surfactant-micelles-as-templates-for-mesoporous-nanotubes-with-diverse-bridged-organosilica-frameworks
#3
Manik Mandal, George Farid, Michal Kruk
Bridged-organosilica nanotubes with a variety of bridging groups (methylene, ethylene, ethenylene, phenylene and p-xylylene) were synthesized using swollen mixtures of Pluronic triblock copolymer surfactants as micellar templates. The mixtures consisted of Pluronic F127 surfactant (EO106 PO70 EO106 ) with long poly(ethylene oxide), PEO, blocks, which help prevent the formation of consolidated structures, and another Pluronic with shorter PEO blocks and higher poly(propylene oxide) content, which promote swelling and the cylindrical micelle morphology...
April 4, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29677610/a-new-electrochemical-sensor-for-highly-sensitive-and-selective-detection-of-nitrite-in-food-samples-based-on-sonochemical-synthesized-calcium-ferrite-cafe-2-o-4-clusters-modified-screen-printed-carbon-electrode
#4
Paramasivam Balasubramanian, Ramki Settu, Shen-Ming Chen, Tse-Wei Chen, Ganapathi Sharmila
Herein, we report a novel, disposable electrochemical sensor for the detection of nitrite ions in food samples based on the sonochemical synthesized orthorhombic CaFe2 O4 (CFO) clusters modified screen printed electrode. As synthesized CFO clusters were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transformer infrared spectroscopy (FT-IR), Thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and amperometry (i-t)...
April 11, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29677607/association-between-childhood-maltreatment-and-non-medical-prescription-opioid-use-among-chinese-senior-high-school-students-the-moderating-role-of-gender
#5
Yiling Lei, Chuhao Xi, Pengsheng Li, Min Luo, Wanxin Wang, Siyuan Pan, Xue Gao, Yan Xu, Guoliang Huang, Xueqing Deng, Lan Guo, Ciyong Lu
BACKGROUND: Non-medical prescription opioid use (NMPOU) and childhood maltreatment are currently serious problems among adolescents worldwide, and childhood maltreatment may be associated with the increased rates of NMPOU. This study examined the specific associations between particular types of childhood maltreatment and lifetime NMPOU and assessed whether gender has a moderating effect on these associations. METHODS: A 3-stage, stratified cluster, randomized sampling method was used to collect data from 11,194 high school students in Chongqing...
April 10, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29677468/exploring-energy-landscapes
#6
David J Wales
Recent advances in the potential energy landscapes approach are highlighted, including both theoretical and computational contributions. Treating the high dimensionality of molecular and condensed matter systems of contemporary interest is important for understanding how emergent properties are encoded in the landscape and for calculating these properties while faithfully representing barriers between different morphologies. The pathways characterized in full dimensionality, which are used to construct kinetic transition networks, may prove useful in guiding such calculations...
April 20, 2018: Annual Review of Physical Chemistry
https://www.readbyqxmd.com/read/29677446/classical-optimal-control-for-energy-minimization-based-on-diffeomorphic-modulation-under-observable-response-preserving-homotopy
#7
Micheline B Soley, Andreas Markmann, Victor S Batista
We introduce the so-called 'Classical Optimal Control Optimization' (COCO) method for global energy minimization based on the implementation of the diffeomorphic modulation under observable-response-preserving homotopy (DMORPH) gradient algorithm. A probe particle with time-dependent mass m(t;b) and dipole m(r; t;b) is evolved classically on the potential energy surface V(r) coupled to an electric field E(t;b), as described by the time-dependent density of states represented on a grid, or otherwise as a linear combination of Gaussians generated by the k-means clustering algorithm...
April 20, 2018: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/29677445/new-amphiphilic-composite-for-preparing-efficient-coated-potassium-fertilizers-for-top-dressing-fertilization-of-annual-crops
#8
Oscar Urrutia, Javier Erro, Andre Vinicius Zabini, Kent Hoshiba, Anne Francoise Blandin, Roberto Baigorri, Manuel Martin-Pastor, Yves Alis, Jean-Claude Yvin, José María García-Mina
This study describes the efficiency of a new coating material for preparing granulated potassium-fertilizers with a potassium release to the soil solution sensitive to rainfall intensity. The composite is prepared by reaction of an alkyd-resin with cement in the absence of water. The complementary use of diverse analytical techniques showed that the presence of the cement fraction induced alkyd resin reticulation and gradual cement-resin hardening. Scanning electron microscopy revealed the formation of micro and nanopores within cement-clusters, whose water permeability is affected by the resin reticulation and amphiphilic character...
April 20, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29677398/does-stress-increase-risk-of-breast-cancer-a-15-year-prospective-study
#9
Phyllis Butow, Melanie Price, Joseph Coll, Katherine Tucker, Bettina Meiser, Roger Milne, Judith Wilson, Louise Heiniger, Brandi Baylock, Tracey Bullen, Prue Weideman, Kelly-Anne Phillips
OBJECTIVE: The possible impact of stress on cancer incidence remains controversial. We prospectively evaluated associations between life event stressors, social support, personality characteristics (optimism, anger control, anti-emotionality) and risk of developing primary breast cancer (BCa), in women at increased familial risk of BCa. METHODS: A prospective cohort, repeated measures design was employed. Recruitment was through the Kathleen Cuningham Foundation Consortium for Research into Familial breast cancer (kConFab), which collects genetic, epidemiological and clinical data from Australasian families with multiple BCa cases...
April 20, 2018: Psycho-oncology
https://www.readbyqxmd.com/read/29677382/resident-to-resident-mistreatment-evaluation-of-a-staff-training-program-in-the-reduction-of-falls-and-injuries
#10
Jeanne A Teresi, Mildred Ramírez, Terry Fulmer, Julie Ellis, Stephanie Silver, Jian Kong, Joseph P Eimicke, Gabriel Boratgis, Rhoda Meador, Mark S Lachs, Karl Pillemer
Resident-to-resident elder mistreatment (R-REM) occurs frequently in long-term services and support settings. The purpose of the current study was to evaluate the effect of a R-REM training program for nursing and other frontline staff on resident falls and injuries in a cluster randomized trial of units within four nursing homes. Interview and observational data from a sample of 1,201 residents (n = 600 and n = 601 in the usual care and intervention groups, respectively) and staff were collected at baseline and 6 and 12 months...
April 19, 2018: Journal of Gerontological Nursing
https://www.readbyqxmd.com/read/29677201/an-incremental-clustering-method-based-on-the-boundary-profile
#11
Junpeng Bao, Wenqing Wang, Tianshe Yang, Guan Wu
Many important applications continuously generate data, such as financial transaction administration, satellite monitoring, network flow monitoring, and web information processing. The data mining results are always evolving with the newly generated data. Obviously, for the clustering task, it is better to incrementally update the new clustering results based on the old data rather than to recluster all of the data from scratch. The incremental clustering approach is an essential way to solve the problem of clustering with growing Big Data...
2018: PloS One
https://www.readbyqxmd.com/read/29677187/breastfeeding-during-infancy-and-neurocognitive-function-in-adolescence-16-year-follow-up-of-the-probit-cluster-randomized-trial
#12
Seungmi Yang, Richard M Martin, Emily Oken, Mikhail Hameza, Glen Doniger, Shimon Amit, Rita Patel, Jennifer Thompson, Sheryl L Rifas-Shiman, Konstantin Vilchuck, Natalia Bogdanovich, Michael S Kramer
BACKGROUND: Evidence on the long-term effect of breastfeeding on neurocognitive development is based almost exclusively on observational studies. In the 16-year follow-up study of a large, cluster-randomized trial of a breastfeeding promotion intervention, we evaluated the long-term persistence of the neurocognitive benefits of the breastfeeding promotion intervention previously observed at early school age. METHODS AND FINDINGS: A total of 13,557 participants (79...
April 2018: PLoS Medicine
https://www.readbyqxmd.com/read/29677007/near-continuous-glucose-monitoring-makes-glycemic-control-safer-in-icu-patients
#13
Jean-Charles Preiser, Olivier Lheureux, Aurelie Thooft, Serge Brimioulle, Jacques Goldstein, Jean-Louis Vincent
OBJECTIVES: Tight glycemic control using intermittent blood glucose measurements is associated with a risk of hypoglycemia. Glucose concentrations can now be measured near continuously (every 5-15 min). We assessed the quality and safety of glycemic control guided by a near-continuous glucose monitoring system in ICU patients. DESIGN: Prospective, cluster-randomized, crossover study. SETTING: Thirty-five-bed medico-surgical department of intensive care with four separate ICUs...
April 19, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29676984/comments-on-modeling-cell-survival-after-photon-irradiation-based-on-double-strand-break-clustering-in-megabase-pair-chromatin-loops-by-thomas-friedrich-marco-durante-and-michael-scholz-radiat-res-2012-178-385-94
#14
https://www.readbyqxmd.com/read/29676983/comments-on-comments-on-modeling-cell-survival-after-photon-irradiation-based-on-double-strand-break-clustering-in-megabase-pair-chromatin-loops-by-thomas-friedrich-marco-durante-and-michael-scholz-radiat-res-2012-178-385-94
#15
https://www.readbyqxmd.com/read/29676858/effects-of-prebiotic-fiber-xylooligosaccharide-in-adenine-induced-nephropathy-in-mice
#16
Jieping Yang, Qing Li, Susanne M Henning, Jin Zhong, Mark Hsu, Rupo Lee, Jianfeng Long, Brenda Chan, Glenn T Nagami, David Heber, Zhaoping Li
SCOPE: We evaluated the effect of the prebiotic fiber xylooligosaccharide (XOS) on kidney function and gut microbiome in mice with adenine-induced chronic kidney disease (CKD). METHOD AND RESULTS: Mice were fed the control diet containing adenine for three weeks to induce CKD and switched to XOS supplemented (2 or 7%) or control diets for another 3 weeks. Mice with CKD exhibited increased BUN, creatinine and kidney histopathology. XOS significantly reversed kidney injuries in CKD mice...
April 20, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29676561/highly-stable-mesoporous-luminescence-functionalized-mof-with-excellent-electrochemiluminescence-property-for-ultrasensitive-immunosensor-construction
#17
Gui-Bing Hu, Cheng-Yi Xiong, Wen-Bin Liang, Xiao-Shan Zeng, Hui-Ling Xu, Yang Yang, Li-Ying Yao, Ruo Yuan, Dong-Rong Xiao
In this work, a novel mesoporous luminescence-functionalized metal-organic framework (Ru-PCN-777) with high stability and excellent electrochemiluminescence (ECL) performance was synthesized by immobilizing Ru(bpy)2(mcpbpy)2+ on the Zr6 cluster of PCN-777 via a strong coordination bond between Zr4+ and -COO-. Consequently, the Ru(bpy)2(mcpbpy)2+ could not only cover the surface of PCN-777, but also grafted into the interior of PCN-777, which greatly increased the loading amount of Ru(bpy)2(mcpbpy)2+ and effectively prevented the leaching of the Ru(bpy)2(mcpbpy)2+ resulting in a stable and high ECL response...
April 20, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29676484/structural-and-metabolic-brain-correlates-of-apathy-in-huntington-s-disease
#18
Saul Martínez-Horta, Jesús Perez-Perez, Frederic Sampedro, Javier Pagonabarraga, Andrea Horta-Barba, Mar Carceller-Sindreu, Beatriz Gomez-Anson, Gloria Andrea Lozano-Martinez, Diego Alfonso Lopez-Mora, Valle Camacho, Alejandro Fernández-León, Ignasi Carrió, Jaime Kulisevsky
BACKGROUND: Apathy is the most prevalent and characteristic neuropsychiatric feature of Huntington's disease. Congruent with the main early pathological changes, apathy is primarily associated with subcortical damage in frontal-striatal circuits. However, little is known about its precise subserving mechanisms and the contribution of regions other than the basal ganglia. OBJECTIVES: We aimed to define the neural correlates of apathy in Huntington's disease based on gray matter volume and PET/CT of 18 F-fluorodeoxyglucose metabolism...
April 20, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29676475/on-the-ion-pair-dissociation-mechanisms-in-the-small-nacl%C3%A2-h-2-o-6-cluster-a-perspective-from-reaction-path-search-calculations
#19
Toshiyuki Takayanagi, Taiki Nakatomi, Yoshiteru Yonetani
We performed reaction path search calculations for the NaCl·(H2 O)6 cluster using the global reaction route mapping (GRRM) code to understand the atomic-level mechanisms of the NaCl → Na+  + Cl- ionic dissociation induced by water solvents. Low-lying minima, transition states connecting two local minima and corresponding intrinsic reaction coordinates on the potential energy surface are explored. We found that the NaCl distances at the transitions states for the dissociation pathways were distributed in a relatively wide range of 2...
April 20, 2018: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/29676421/stable-unsaturated-silicon-clusters-siliconoids
#20
Yannic Heider, David Scheschkewitz
Unsaturated silicon clusters are key intermediates of silicon deposition processes from the gas phase, which is reflected in the recently introduced term "siliconoids" for silicon rich clusters with at least one hemispheroidally coordinated vertex. Unlike the case of metalloid clusters of heavier Group 14 elements, stable homonuclear derivatives containing silicon have become available just recently. This review summarizes the developments since the first report on a stable unsaturated silicon cluster in 2005...
April 20, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
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