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https://www.readbyqxmd.com/read/29679952/injuries-to-cyclists-due-to-a-dog-bicycle-interaction
#1
Randall T Loder, Alan P Yaacoub
BACKGROUND:  Both dogs and bicycles are common in our society and thus a dog-bicycle interaction resulting in an injury to a cyclist is possible. It was the purpose of this study to investigate such injuries. METHODS:  The National Electronic Injury Surveillance System (NEISS) data for the 10-year period from 2006 through 2015 associated with bicycles were accessed. Injuries involving dogs were identified and the mechanism of injury determined. Due to the stratified and weighted nature of the NEISS data, statistical analyses were performed with SUDAAN 10 software (RTI International, Research Triangle Park, North Carolina, United States)...
April 21, 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29679941/wood-and-bark-of-pinus-halepensis-as-archives-of-heavy-metal-pollution-in-the-mediterranean-region
#2
José Antonio Rodríguez Martin, Carmen Gutiérrez, Manuel Torrijos, Nikos Nanos
Natural levels of heavy metals (HM) have increased during the industrial era to the point of posing a serious threat to the environment. The use of tree species to record contamination is a well-known practice. The objective of the study was to compare HM levels under different pollution conditions: a) soil pollution due to mining waste; b) atmospheric pollution due to coal-fired power plant emissions. We report significant HM enrichment in Pinus halepensis tissues. Near a burning power plant, Pb content in a tree wood was 2...
April 18, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29679932/tcnq-molecular-semiconductor-of-the-cu-ii-taab-macrocycle-optical-and-electrical-properties
#3
M E Sánchez Vergara, R Salcedo, Bertha Molina, R Carrera-Téllez, J R Álvarez-Bada, A Hernández-García, V Gómez-Vidales
The present study reports the doping of a semiconducting molecular material through the formation of hydrogen bonds between the macrocycle Cu(II)(TAAB) and the electronic acceptor TCNQ. According to density functional theory (DFT) calculations and electron paramagnetic resonance (EPR) analysis, the doped compound has the shape of a distorted square pyramid, with four nitrogen atoms in the equatorial position and the apical oxygen atom from the water ligands. These water molecules can generate strong hydrogen bonds with TCNQ and the TAAB metallic complex...
April 11, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29679928/likelihood-ratio-development-for-mixed-y-str-profiles
#4
Duncan Taylor, James Curran, John Buckleton
In this paper we introduce a new likelihood ratio method for evaluating mixed Y-STR profiles that is based on the premise that, given a haplotype has been seen in the person of interest, the most likely source of a second haplotype, matching at all or most loci, is in an individual with a recent common ancestor. We have called the new method the "Haplotype centred" (HC) method for likelihood ratio derivation. For single source, unambiguous haplotypes the HC method performs identically with the Kappa method proposed by Brenner...
April 7, 2018: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/29679927/excitation-functions-of-proton-and-deuteron-induced-nuclear-reactions-on-natural-iridium-for-the-production-of-191-pt
#5
Honoka Obata, Mayeen Uddin Khandaker, Etsuko Furuta, Kotaro Nagatsu, Ming-Rong Zhang
We studied the excitation functions of residual radionuclides produced via proton and deuteron bombardment on natural iridium in the energy ranges of 30-15 MeV and 50-15 MeV, respectively. A conventional stacked-foil activation technique combined with HPGe γ-ray spectrometry was used to measure the excitation functions for 189, 191 Pt and 189, 190g, 192g, 194g Ir radionuclide production. Theoretical thick target yields were estimated to be 172 MBq/µA h and 192 MBq/µA h via the 193 Ir(p,3n)191 Pt reaction at 29...
March 30, 2018: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29679917/possible-impacts-of-sea-level-rise-on-disease-transmission-and-potential-adaptation-strategies-a-review
#6
REVIEW
Ana C Dvorak, Helena M Solo-Gabriele, Andrea Galletti, Bernardo Benzecry, Hannah Malone, Vicki Boguszewski, Jason Bird
Sea levels are projected to rise in response to climate change, causing the intrusion of sea water into land. In flat coastal regions, this would generate an increase in shallow water covered areas with limited circulation. This scenario raises a concern about the consequences it could have on human health, specifically the possible impacts on disease transmission. In this review paper we identified three categories of diseases which are associated with water and whose transmission can be affected by sea level rise...
April 18, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29679903/isoharringtonine-inhibits-breast-cancer-stem-like-properties-and-stat3-signaling
#7
Wei Chen, Hui Wang, Mei Cheng, Ling Ni, Li Zou, Qin Yang, Xianghai Cai, Baowei Jiao
OBJECTIVES: Breast cancer stem cells (BCSCs) contribute to breast cancer progression, relapse, and treatment resistance. Identification of the natural inhibitory components of BCSCs is therefore critical for clinical treatment. Here, we investigated whether isoharringtonine (IHT) had inhibitory effects on BCSCs in breast cancer cell lines. METHODS: HCC1806, HCC1937, and MCF7 cells were treated with IHT. The proliferation and the migration of cells were detected by MTS assay and wound healing migration assay, respectively...
April 18, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29679901/replacement-of-arg-with-nle-and-modified-d-phe-in-the-core-sequence-of-mshs-ac-his-d-phe-arg-trp-nh-2-leads-to-hmc1r-selectivity-and-pigmentation
#8
Saghar Mowlazadeh Haghighi, Yang Zhou, Jixun Dai, Jonathon R Sawyer, Victor J Hruby, Minying Cai
Melanoma skin cancer is the fastest growing cancer in the US [1]. A great need exists for improved formulations and mechanisms to prevent and protect human skin from cancers and other skin damage caused by sunlight exposure. Current efforts to prevent UV damage to human skin, which in many cases leads to melanoma and other skin cancers. The primordial melanocortin-1 receptor (MC1R) is involved in regulating skin pigmentation and hair color, which is a natural prevention from UV damage. The endogenous melanocortin agonists induce pigmentation and share a core pharmacophore sequence "His-Phe-Arg-Trp", and it was found that substitution of the Phe by D-Phe results in increasing melanocortin receptor potency...
April 11, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29679891/removal-of-arsenic-and-mercury-species-from-water-by-covalent-triazine-framework-encapsulated-%C3%AE-fe-2-o-3-nanoparticles
#9
Karen Leus, Karel Folens, Nina Ricci Nicomel, Jeffrey Paulo H Perez, Maria Filippousi, Maria Meledina, Marinela M Dîrtu, Stuart Turner, Gustaaf Van Tendeloo, Yann Garcia, Gijs Du Laing, Pascal Van Der Voort
The covalent triazine framework, CTF-1, served as host material for the in situ synthesis of Fe2 O3 nanoparticles. The composite material consisted of 20 ± 2 m% iron, mainly in γ-Fe2 O3 phase. The resulting γ-Fe2 O3 @CTF-1 was examined for the adsorption of AsIII , AsV and HgII from synthetic solutions and real surface-, ground- and wastewater. The material shows excellent removal efficiencies, independent from the presence of Ca2+ , Mg2+ or natural organic matter and only limited dependency on the presence of phosphate ions...
April 16, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29679889/interpretation-of-60-co-radiation-effects-in-metal-oxide-semiconductors-in-terms-of-the-mobility-and-interface-trap-density-with-a-drain-current-gate-voltage-model
#10
Liu Changshi, Zhang Jianxin
The voltage-dependent current is a crucial parameter for determining the electrical properties of microelectronic devices. In this study, we aimed to extend a generic dc model to successfully explain the drain current (Id ) for metal-oxide semiconductors (MOSs) and thin-film transistors (TFTs) based on the gate voltage (Vg ), where the threshold voltage (Vth ) could also be obtained from this model in a nature manner. This dc model meets the requirements for compact modeling, including modeling computer circuit simulators...
April 4, 2018: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29679887/determining-chewing-efficiency-using-a-solid-test-food-and-considering-all-phases-of-mastication
#11
Ting Liu, Xinmiao Wang, Jianshe Chen, Hilbert W van der Glas
OBJECTIVES: Following chewing a solid food, the median particle size, X50 , is determined after N chewing cycles, by curve-fitting of the particle size distribution. Reduction of X50 with N is traditionally followed from N ≥ 15-20 cycles when using the artificial test food Optosil® , because of initially unreliable values of X50 . The aims of the study were (i) to enable testing at small N-values by using initial particles of appropriate size, shape and amount, and (ii) to compare measures of chewing ability, i...
April 10, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29679883/protective-effects-of-stigmasterol-against-ketamine-induced-psychotic-symptoms-possible-behavioral-biochemical-and-histopathological-changes-in-mice
#12
Monu Yadav, Milind Parle, Deepak Kumar Jindal, Sameer Dhingra
BACKGROUND: Stigmasterol, a naturally occurring phytoestrogen has been reported to possess many pharmacological activities. The aim of the present study was to screen the effect of stigmasterol against ketamine-induced mice model of psychosis. METHODS: The behavioural studies included an assessment of locomotor activity, stereotypic behaviours, immobility duration, step down latency and effects on catalepsy. Biochemical estimations involved the estimations of GABA, dopamine, GSH, MDA, TNF-α, total protein content and AChE activity...
January 11, 2018: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29679870/application-of-enteromorpha-polysaccharides-as-coagulant-aid-in-the-simultaneous-removal-of-cuo-nanoparticles-and-cu-2-effect-of-humic-acid-concentration
#13
Yuanxia Luo, Baoyu Gao, Qinyan Yue, Ruihua Li
Humic acid (HA) influences the aggregation and stability of nanoparticles (NPs), which determine the removal performance of NPs in coagulation. Consequently, in this study, the impact of HA concentration on the simultaneous removal of CuO NPs, Cu2+ , and natural organic matter (NOM) was investigated. Enteromorpha polysaccharides (Ep), as the novel recycling coagulant aid, were integrated with polyaluminum chloride (PAC) to treat composite contaminants in this coagulation process. Removal performance, floc properties, zeta potential, scanning electron microscope (SEM) images, and Fourier Transform Infrared Spectra (FT-IR) were measured and analyzed...
March 26, 2018: Chemosphere
https://www.readbyqxmd.com/read/29679866/influence-of-humic-substances-on-iron-distribution-in-the-east-china-sea
#14
Han Su, Rujun Yang, Yan Li, Xuchen Wang
The influence of humic substances (specifically humic and fulvic acids, referred to as HS-HA and HS-FA) as well as other factors, such as major nutrient concentrations of total dissolved nitrogen (TDN), total dissolved phosphate (TDP) and hydrologic factors, on the distribution of total dissolved iron (DFe) and the chemical speciation of DFe was studied in the East China Sea (ECS) during a summer cruise in 2013. As the wide rage fraction of nature organic matter, the HS-HA, HS-FA in ESC contains most part of the organic ligand (Lt) of DFe...
April 9, 2018: Chemosphere
https://www.readbyqxmd.com/read/29679864/computational-insights-into-%C3%AE-site-amyloid-precursor-protein-enzyme-1-bace1-inhibition-by-tanshinones-and-salvianolic-acids-from-salvia-miltiorrhiza-via-molecular-docking-simulations
#15
Ting Yu, Pradeep Paudel, Su Hui Seong, Jeong Ah Kim, Hyun Ah Jung, Jae Sue Choi
The rhizome of Salvia miltiorrhiza has emerged as a rich source of natural therapeutic agents, and its several compounds are supposed to exhibit favorable effects on Alzheimer's disease (AD). The present work investigate the anti-AD potentials of 12 tanshinones, three salvianolic acids and three caffeic acid derivatives from S. miltiorrhiza via the inhibition of β-site amyloid precursor protein cleaving enzyme 1 (BACE1). Among the tested compounds, deoxyneocryptotanshinone (1), salvianolic acid A (13) and salvianolic acid C (15) displayed good inhibitory effect on BACE1 with IC50 values of 11...
April 13, 2018: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/29679832/natural-revegetation-of-a-semiarid-habitat-alters-taxonomic-and-functional-diversity-of-soil-microbial-communities
#16
Yanqing Guo, Xiaotian Chen, Yuanyuan Wu, Lu Zhang, Jimin Cheng, Gehong Wei, Yanbing Lin
Revegetation of degraded lands has a profound impact on the maintenance and stability of ecosystem processes. However, the impacts of this land use change on functional diversity of soil microbial communities are poorly understood. Here, using 16S rRNA gene amplicon and shotgun metagenomic sequencing, we compared the taxonomic and functional communities of soil microbiome, and analyzed the effects of plant diversity and soil chemical properties, in a chronosequence of restored ex-farmland that had been naturally revegetated to grassland over periods of 5, 15 and 30years with adjacent farmland, on the Loess Plateau, China...
April 18, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29679820/joy-guilt-and-disappointment-an-interpretative-phenomenological-analysis-of-the-experiences-of-women-transferred-from-midwifery-led-to-consultant-led-care
#17
Patricia Larkin
BACKGROUND: Irish maternity services are predominantly medicalised and consultant led, therefore women who choose midwifery led care (MLC) do so in the context of limited birth choices. Transfers to consultant led unit (CLU) for consultant led care (CLC) can be unpredictable and can affect women's birth experiences. This study provides an in-depth exploration of women's experiences of transfer fromMLC to CLC during late pregnancy or labour. METHODS: Transfer experiences are explored through qualitative explorative in-depth interviews using interpretative phenomenological analysis (IPA)...
April 11, 2018: Midwifery
https://www.readbyqxmd.com/read/29679819/submarine-groundwater-discharge-and-chemical-behavior-of-tracers-in-laizhou-bay-china
#18
Yan Zhang, Hailong Li, Xuejing Wang, Chaoyue Wang, Kai Xiao, Wenjing Qu
Naturally occurring radon (222 Rn) and radium isotopes are widely used to trace water mixing and submarine groundwater discharge (SGD) in the coastal zones. However, their activities in groundwater are variable both spatially and temporally. Here, time series sampling of 222 Rn and radium was conducted to investigate their behavior in intertidal groundwater of Laizhou Bay, China. The result shows that groundwater redox conditions have an important impact on the behavior of tracers. The activities of tracers will decrease under oxidizing conditions and increase under reducing conditions...
April 18, 2018: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29679814/prediction-of-recurrent-ectopic-pregnancy-a-five-year-follow-up-cohort-study
#19
Mohamed Ellaithy, Mufareh Asiri, Ahmed Rateb, Ahmed Altraigey, Khaled Abdallah
OBJECTIVE: To evaluate the value of different clinical risk factors in the prediction of recurrent ectopic pregnancies (REP). STUDY DESIGN: This cohort study was carried out at a tertiary-care maternity hospital in Saudi Arabia, between January 2010 and June 2017. All women with a primary ectopic pregnancy (EP) were consecutively recruited, thoroughly assessed and followed up for a minimum duration of five-years (5.6 ± 0.61 years) to diagnose the nature and location of the subsequent pregnancies...
April 10, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29679807/fish-sarcoplasmic-proteins-as-a-high-value-marine-material-for-wound-dressing-applications
#20
Sara Vieira, Albina R Franco, Emanuel M Fernandes, Sara Amorim, Helena Ferreira, Ricardo A Pires, Rui L Reis, Albino Martins, Nuno M Neves
Fish sarcoplasmic proteins (FSP) constitute around 25-30% of the total fish muscle protein. As the FSP are water soluble, FSP were isolated from fresh cod (Gadus morhua) by centrifugation. By SDS-PAGE, it was possible to determine the composition of FSP extracts (FSP-E). The FSP-E undergo denaturation at 44.12 ± 2.34° C, as characterized by differential scanning calorimetry thermograms (DSC). The secondary structure of FSP-E is mainly composed by α-helix structure, as determined by circular dichroism...
April 5, 2018: Colloids and Surfaces. B, Biointerfaces
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