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https://www.readbyqxmd.com/read/28340522/tin-oxide-carbon-coated-sepiolite-nanofibers-with-enhanced-lithium-ion-storage-property
#1
Kai Hou, Xin Wen, Peng Yan, Aidong Tang, Huaming Yang
Natural sepiolite (Sep) nanofibers were coated with carbon and nanoscale SnO2 to prepare an emerging nanocomposite (SnO2-C@Sep), which exhibited enhanced electrochemical performance. Sepiolite could act as a steady skeleton, carbon coating principally led sepiolite from an isolated to an electric state, and decoration of nanoscale SnO2 was beneficial to the functionization of sepiolite. Cycling performances indicated that SnO2-C@Sep showed higher discharge capacities than commercial SnO2 after 50 cycles. The nanocomposite SnO2-C@Sep possessed enhanced lithium storage properties with stable capacity retention and low cost, which could open up a new strategy to synthesize a variety of functional hybrid materials based on the cheap and abundant clay and commercialization of lithium-metal oxide batteries...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28340385/experimental-study-of-polyethylene-pyrolysis-and-combustion-over-hzsm-5-husy-and-mcm-41
#2
Que Huang, Changcheng Liu, Ruichao Wei, Jian Wang
The effects of temperatures, catalysts, and catalyst contents on polyethylene (PE) pyrolysis were investigated by using single-photon ionization time-of-flight mass spectrometry (SPI-TOFMS). The mass spectra of pyrolyzed PE and PE/catalysts from 300°C to 800°C illustrate that the pyrolysis reactions were apparently promoted and varied by introducing HZSM-5, HUSY, and MCM-41. As microporous catalysts, HZSM-5 and HUSY were found to accelerate the BTX formation at 400°C, which could not be observed for pure PE until 800°C...
March 14, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28340178/morphometric-covariation-between-palatal-shape-and-skeletal-pattern-in-class-ii-growing-subjects
#3
Valeria Paoloni, Roberta Lione, Francesca Farisco, Demetrios J Halazonetis, Lorenzo Franchi, Paola Cozza
Objectives: To evaluate the patterns of covariation between palatal and craniofacial morphology in Class II subjects in the early mixed dentition by means of geometric morphometrics. Methods: A cross-sectional sample of 85 Class II subjects (44 females, 41 males; mean age 8.7 years ± 0.8) was collected retrospectively according to the following inclusion criteria: European ancestry (white), Class II skeletal relationship, Class II division 1 dental relationship, early mixed dentition, and prepubertal skeletal maturation...
March 14, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339829/perceived-office-environments-and-occupational-physical-activity-in-office-based-workers
#4
A Sawyer, L Smith, M Ucci, R Jones, A Marmot, A Fisher
Background: Individuals in office-based occupations have low levels of physical activity but there is little research into the socio-ecological correlates of workplace activity. Aims: To identify factors contributing to office-based workers' perceptions of the office environment and explore cross-sectional relationships between these factors and occupational physical activity. Methods: Participants in the Active Buildings study reported perceptions of their office environment using the Movement at Work Survey...
March 1, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28339782/the-adolescent-hiv-disclosure-cognition-and-affect-scale-preliminary-reliability-and-validity
#5
Michael Evangeli
Globally, there are 2 million HIV-positive 10-19-year-olds. One challenge for this population is sharing their HIV status with others (onward HIV disclosure). There are no multi-item, multidimensional scales of HIV disclosure cognitions and affect for young people living with HIV. An 18-item measure of HIV disclosure cognition and affect was developed, administered to 65 adolescents living with HIV (aged 12-16 years). Data were explored using principal component analysis and preliminary construct and criterion validity assessed...
February 26, 2017: Journal of Pediatric Psychology
https://www.readbyqxmd.com/read/28339472/vector-status-of-aedes-species-determines-geographical-risk-of-autochthonous-zika-virus-establishment
#6
Lauren Gardner, Nan Chen, Sahotra Sarkar
BACKGROUND: The 2015-16 Zika virus pandemic originating in Latin America led to predictions of a catastrophic global spread of the disease. Since the current outbreak began in Brazil in May 2015 local transmission of Zika has been reported in over 60 countries and territories, with over 750 thousand confirmed and suspected cases. As a result of its range expansion attention has focused on possible modes of transmission, of which the arthropod vector-based disease spread cycle involving Aedes species is believed to be the most important...
March 24, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28339448/efficacious-dorsal-root-ganglion-stimulation-for-painful-small-fiber-neuropathy-a-case-report
#7
Paolo Maino, Eva Koetsier, Alain Kaelin-Lang, Claudio Gobbi, Roberto Perez
Small fiber neuropathy is a disorder of the peripheral nerves with typical symptoms of burning, sharp, and shooting pain and sensory disturbances in the feet. Pain treatment depends principally on the underlying etiology with concurrent administration of antidepressants, anticonvulsants, opioids, and topical treatments like capsaicin and local anesthetics. However, treatments for pain relief in these patients frequently fail. We describe the first case of intractable painful small fiber neuropathy of the foot successfully treated with spinal cord stimulation of the left L5 dorsal root ganglion...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339441/the-role-of-the-ligamentum-flavum-area-as-a-morphological-parameter-of-lumbar-central-spinal-stenosis
#8
Young Uk Kim, Jun Young Park, Doo Hwan Kim, Myung-Hwan Karm, Jae-Young Lee, Jee In Yoo, Sung Won Chon, Jeong Hun Suh
BACKGROUND: Hypertrophy of the ligamentum flavum (LF) has been considered as a major cause of lumbar central spinal stenosis (LCSS). Previous studies have found that ligamentum flavum thickness (LFT) is correlated with aging, disc degeneration, and lumbar spinal stenosis. However, hypertrophy is different from thickness. Thus, to evaluate hypertrophy of the whole LF, we devised a new morphological parameter, called the ligamentum flavum area (LFA). OBJECTIVES: We hypothesized that the LFA is a key morphologic parameter in the diagnosis of LCSS...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339068/iron-and-parkinson-s-disease-a-systematic-review-and-meta-analysis
#9
Giovanni Mostile, Calogero Edoardo Cicero, Loretta Giuliano, Mario Zappia, Alessandra Nicoletti
A possible association between iron serum levels and Parkinson's disease (PD) using a meta‑analytic approach was evaluated. A systematic MEDLINE search was conducted to identify published observational, case‑control studies dealing with the association between iron blood levels and PD. In both groups, iron blood levels were extracted as means and standard deviations to calculate the standardized mean differences (SMDs) with 95% confidence intervals (CIs). Heterogeneity of selected studies was investigated...
March 24, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338798/genetic-dissection-of-metabolite-variation-in-arabidopsis-seeds-evidence-for-mqtl-hotspots-and-a-master-regulatory-locus-of-seed-metabolism
#10
Dominic Knoch, David Riewe, Rhonda Christiane Meyer, Anastassia Boudichevskaia, Renate Schmidt, Thomas Altmann
To gain insight into genetic factors controlling seed metabolic composition and its relationship to major seed properties, an Arabidopsis recombinant inbred line (RIL) population, derived from accessions Col-0 and C24, was studied using an MS-based metabolic profiling approach. Relative intensities of 311 polar primary metabolites were used to identify associated genomic loci and to elucidate their interactions by quantitative trait locus (QTL) mapping. A total of 786 metabolic QTLs (mQTLs) were unequally distributed across the genome, forming several hotspots...
March 6, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338794/genome-wide-association-study-unravels-the-genetic-control-of-the-apple-volatilome-and-its-interplay-with-fruit-texture
#11
Brian Farneti, Mario Di Guardo, Iuliia Khomenko, Luca Cappellin, Franco Biasioli, Riccardo Velasco, Fabrizio Costa
Fruit quality represents a fundamental factor guiding consumers' preferences. Among apple quality traits, volatile organic compounds and texture features play a major role. Proton Transfer Reaction-Time of Flight-Mass Spectrometry (PTR-ToF-MS), coupled with an artificial chewing device, was used to profile the entire apple volatilome of 162 apple accessions, while the fruit texture was dissected with a TAXT-AED texture analyzer. The array of volatile compounds was classed into seven major groups and used in a genome-wide association analysis carried out with 9142 single nucleotide polymorphisms (SNPs)...
February 24, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338728/characterising-root-trait-variability-in-chickpea-cicer-arietinum-l-germplasm
#12
Yinglong Chen, Michel Edmond Ghanem, Kadambot Hm Siddique
Chickpea (Cicer arietinum L.) is an important grain legume crop but its sustainable production is challenged by predicted climate changes, which are likely to increase production limitations and uncertainty in yields. Characterising the variability in root architectural traits in a core collection of chickpea germplasm will provide the basis for breeding new germplasm with suitable root traits for the efficient acquisition of soil resources and adaptation to drought and other abiotic stresses. This study used a semi-hydroponic phenotyping system for assessing root trait variability across 270 chickpea genotypes...
October 6, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338727/rin4-recruits-the-exocyst-subunit-exo70b1-to-the-plasma-membrane
#13
Peter Sabol, Ivan Kulich, Viktor Žárský
The exocyst is a conserved vesicle-tethering complex with principal roles in cell polarity and morphogenesis. Several studies point to its involvement in polarized secretion during microbial pathogen defense. In this context, we have found an interaction between the Arabidopsis EXO70B1 exocyst subunit, a protein which was previously associated with both the defense response and autophagy, and RPM1 INTERACTING PROTEIN 4 (RIN4), the best studied member of the NOI protein family and a known regulator of plant defense pathways...
February 20, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338650/risk-factors-associated-to-hospital-mortality-in-patients-with-acute-kidney-injury-on-hemodialysis
#14
Mariela Alejandra Linares-Linares, Jorge Arturo Figueroa-Tarrillo, Renato Cerna Viacava, Nilton Yhuri Carreazo, Renzo P Valdivia-Vega
INTRODUCTION: The worldwide incidence of acute kidney injury is 18% and the overall hospital mortality can rise above 50%. In Peru, there are few series about mortality of acute kidney injury in hemodialysis patients. OBJECTIVES: To identify risk factors associated to hospital mortality of acute kidney injury in hemodialysis patients. METHODS: This is a retrospective cohort of patients with acute kidney injury in hemodialysis of Hospital Nacional Edgardo Rebagliati Martins gathered between January 2013 and December 2015...
March 6, 2017: Medwave
https://www.readbyqxmd.com/read/28338641/nerolidol-and-farnesol-inhibit-some-cytochrome-p450-activities-but-did-not-affect-other-xenobiotic-metabolizing-enzymes-in-rat-and-human-hepatic-subcellular-fractions
#15
Alena Špičáková, Barbora Szotáková, Diana Dimunová, Zuzana Myslivečková, Vladimír Kubíček, Martin Ambrož, Kateřina Lněničková, Kristýna Krasulová, Pavel Anzenbacher, Lenka Skálová
Sesquiterpenes, 15-carbon compounds formed from three isoprenoid units, are the main components of plant essential oils. Sesquiterpenes occur in human food, but they are principally taken as components of many folk medicines and dietary supplements. The aim of our study was to test and compare the potential inhibitory effect of acyclic sesquiterpenes, trans-nerolidol, cis-nerolidol and farnesol, on the activities of the main xenobiotic-metabolizing enzymes in rat and human liver in vitro. Rat and human subcellular fractions, relatively specific substrates, corresponding coenzymes and HPLC, spectrophotometric or spectrofluorometric analysis of product formation were used...
March 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28338499/development-of-the-irritable-bowel-syndrome-cognitive-affective-scale-a-brief-self-report-measure-for-clinical-and-research-settings
#16
Sarah Ballou, Laurie Keefer
OBJECTIVES: Measures of cognitive-affective processes believed to underlie Irritable Bowel Syndrome (IBS) symptom expression are used widely in both clinical and research settings. When combined, these measures can be time-consuming and it is not clear whether they evaluate distinct or overlapping constructs. With this study, we seek to identify the most critical cognitive-affective components contributing toward the expression of IBS and to identify which items in these constructs might be streamlined into a single, brief self-report measure...
March 23, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28338236/hsa-mir-3199-2-and-hsa-mir-1293-as-novel-prognostic-biomarkers-of-papillary-renal-cell-carcinoma-by-cox-ratio-risk-regression-model-screening
#17
Wen Luo, Lei Wang, Mao-Hua Luo, Yu-Zhu Huang, Hua Yang, Yu Zhou, Hong-Tao Jia, Xiu-Xin Wang
Papillary renal cell carcinoma(PRCC) is the second most common and aggressive renal cell carcinoma. Identification of novel microRNA biomarkers could be beneficial for the diagnosis and prognosis of PRCCpatients.We aimed to screen differentially expressed miRNAs that can act as prognostic factors and to predict the survival of PRCC patients. High-throughput data of miRNAs of 274 PRCC samples were downloaded from TCGA(The Cancer Genome Atlas) dataset and interested miRNAs were identified. Hierarchical clustering and principal component analysis (PCA) were performed on these miRNAs...
March 24, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28337740/proteome-comparison-for-discrimination-between-honeydew-and-floral-honeys-from-botanical-specie-mimosa-scabrella-bentham-by-principal-component-analysis
#18
Mônia Stremel Azevedo, Pedro Alexandre Valentim-Neto, Siluana Katia Tischer Seraglio, Cynthia Fernandes Pinto da Luz, Ana Carolina Maisonnave Arisi, Ana Carolina Oliveira Costa
BACKGROUND: Due to increasing valuation and appreciation of honeydew honey in many European countries and also to existing contamination among different kinds of honeys, the authentication is an important aspect of quality control and its regard with the origin guarantee in terms of source, honeydew or floral, needs to be determined. Furthermore, belonging to the minority composition of the honey, beyond of the importance of its physiological effects, proteins can differ according to these sources...
March 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28337504/biotransformation-of-2-4-toluenediamine-in-human-skin-and-reconstructed-tissues
#19
Lisa Grohmann, Daniel Becker, Jörg Rademann, Nan Ma, Monika Schäfer-Korting, Günther Weindl
Reconstructed human epidermis (RHE) is used for risk assessment of chemicals and cosmetics and RHE as well as reconstructed human full-thickness skin (RHS) become important for e.g., the pre-clinical development of drugs. Yet, the knowledge regarding their biotransformation capacity is still limited, although the metabolic activity is highly relevant for skin sensitization, genotoxicity, and the efficacy of topical dermatics. The biotransformation of the aromatic amine 2,4-toluenediamine (2,4-TDA) has been compared in two commercially available RHS to normal human skin ex vivo, and in primary epidermal keratinocytes and dermal fibroblasts as well as in vitro generated epidermal Langerhans cells and dermal dendritic cells...
March 23, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28337429/investigating-cardiac-motion-patterns-using-synthetic-high-resolution-3d-cardiovascular-magnetic-resonance-images-and-statistical-shape-analysis
#20
Benedetta Biffi, Jan L Bruse, Maria A Zuluaga, Hopewell N Ntsinjana, Andrew M Taylor, Silvia Schievano
Diagnosis of ventricular dysfunction in congenital heart disease is more and more based on medical imaging, which allows investigation of abnormal cardiac morphology and correlated abnormal function. Although analysis of 2D images represents the clinical standard, novel tools performing automatic processing of 3D images are becoming available, providing more detailed and comprehensive information than simple 2D morphometry. Among these, statistical shape analysis (SSA) allows a consistent and quantitative description of a population of complex shapes, as a way to detect novel biomarkers, ultimately improving diagnosis and pathology understanding...
2017: Frontiers in Pediatrics
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