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https://www.readbyqxmd.com/read/29778079/advances-in-understanding-the-response-of-fish-to-linear-alcohols-in-the-environment
#1
Scott E Belanger, Jane M Rawlings, Ricky Stackhouse
Short to long chain alcohols have a range of ecotoxicity to aquatic life driven by hydrophobic interactions with biological membranes. Carbon chain length and octanol:water partitioning coefficients are surrogates for hydrophobicity and strongly relate to aquatic toxicity. In these investigations, the toxicity of ethanol to 1-n-dodecanol to juvenile fish in standard acute toxicity tests is reviewed. Toxicity tests employing fish embryos (zebrafish Danio rerio and fathead minnow Pimephales promelas) in the Fish Embryo Test (OECD 236) format were conducted from C2 to C10 to compare against standard juvenile fish toxicity...
April 25, 2018: Chemosphere
https://www.readbyqxmd.com/read/29778073/non-selective-rapid-electro-oxidation-of-persistent-refractory-vocs-in-industrial-wastewater-using-a-highly-catalytic-and-dimensionally-stable-irpd-ti-composite-electrode
#2
Wan-Cheol Cho, Kyung-Min Poo, Hend Omar Mohamed, Tae-Nam Kim, Yul-Seong Kim, Moon Hyun Hwang, Do-Won Jung, Kyu-Jung Chae
Volatile organic compounds (VOCs) are highly toxic contaminants commonly dissolved in industrial wastewater. Therefore, treatment of VOC-containing wastewater requires a robust and rapid reaction because liquid VOCs can become volatile secondary pollutants. In this study, electro-oxidation with catalytic composite dimensionally stable anodes (DSAs)-a promising process for degrading organic pollutants-was applied to remove various VOCs (chloroform, benzene, toluene, and trichloroethylene). Excellent treatment efficiency of VOCs was demonstrated...
May 11, 2018: Chemosphere
https://www.readbyqxmd.com/read/29778072/nmr-at-pressures-up-to-90-gpa
#3
Thomas Meier, Saiana Khandarkhaeva, Sylvain Petitgirard, Thomas Körber, Alexander Lauerer, Ernst Rössler, Leonid Dubrovinsky
The past 15 years have seen an astonishing increase in Nuclear Magnetic Resonance (NMR) sensitivity and accessible pressure range in high-pressure NMR experiments, owing to a series of new developments of NMR spectroscopy applied to the diamond anvil cell (DAC). Recently, with the application of electro-magnetic lenses, so-called Lenz lenses, in toroidal diamond indenter cells, pressures of up to 72 GPa with NMR spin sensitivities of about 1012  spin/Hz1/2 has been achieved. Here, we describe the implementation of a refined NMR resonator structure using a pair of double stage Lenz lenses driven by a Helmholtz coil within a standard DAC, allowing to measure sample volumes as small as 100 pl prior to compression...
May 14, 2018: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/29778068/evaluation-of-the-structural-morphology-of-starch-graft-poly-acrylic-acid-on-its-scale-inhibition-efficiency
#4
Wei Yu, Yawen Wang, Aimin Li, Hu Yang
The development of phosphorus-free and biodegradable scale inhibitors has been paid considerable attention. Two series of starch-graft-poly(acrylic acid) (St-g-PAA) samples with different grafting ratios and grafted-chain distributions, that is, the number and length of grafted PAA chains on the starch backbone, were designed and prepared in this study. Fourier transform infrared and 1 H nuclear magnetic resonance spectra were used to further characterize the molecular structures of the St-g-PAAs. In addition to dose, the effects of the structural morphologies of St-g-PAA, namely, grafting ratio and grafted-chain distribution, on the scale-inhibition performance against calcium carbonate were investigated systematically...
April 9, 2018: Water Research
https://www.readbyqxmd.com/read/29778048/pathogens-constancy-harbinger-of-nosocomial-infection-cum-identification-of-resistant-genes-and-drug-designing
#5
Sana Farooq Ahmad, Ibrar Khan, Abdul Wadood, Sadiq Azam, Noor Rehman, Muhammad Waqas, Kashif Bashir, Asaf Ali Khan
Hospitals are the most prominent places for the growth and spread of bacteria which are resistant to the available antibiotics. This antibiotic resistance is due to the over and misuse of antibiotic dosages of a high-density of patient population which are in frequent interaction with inanimate items of the hospitals and the consequent risk of cross infection. Out of 1010 samples of the current study, 510 (50.49%) were culture positive of which 329 (64.5%) were Gram-positive while 181 (35.49%) Gram negative...
April 22, 2018: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/29778045/massively-parallel-sequencing-of-124-snps-included-in-the-precision-id-identity-panel-in-three-east-asian-minority-ethnicities
#6
Jing Liu, Zheng Wang, Guanglin He, Xueying Zhao, Mengge Wang, Tao Luo, Chengtao Li, Yiping Hou
Massively parallel sequencing (MPS) technologies can sequence many targeted regions of multiple samples simultaneously and are gaining great interest in the forensic community. The Precision ID Identity Panel contains 90 autosomal SNPs and 34 upper Y-Clade SNPs, which was designed with small amplicons and optimized for forensic degraded or challenging samples. Here, 184 unrelated individuals from three East Asian minority ethnicities (Tibetan, Uygur and Hui) were analyzed using the Precision ID Identity Panel and the Ion PGM System...
May 15, 2018: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/29778040/violence-against-child-protection-workers-a-study-of-workers-experiences-attributions-and-coping-strategies
#7
Josianne Lamothe, Amélie Couvrette, Gabrielle Lebrun, Gabrielle Yale, Camille Roy, Stéphane Guay, Steve Geoffrion
Child protection workers (CPWs) are frequently exposed to client violence, both psychological and physical, in their line of work whether they operate in the community or in residential settings. Despite this known vulnerability, research on the subject has lagged. The current study sought to analyze CPWs' experiences with client violence, their interpretation of it, its perceived consequences and their coping strategies. Specifically, 30 CPWs working both in the community and in residential settings, took part in an in-depth, semi-structured interview...
May 16, 2018: Child Abuse & Neglect
https://www.readbyqxmd.com/read/29778037/efficient-electrochemical-degradation-of-multiwall-carbon-nanotubes
#8
Vytas Reipa, Shannon K Hanna, Aaron Urbas, Lane Sander, John Elliott, Joseph Conny, Elijah J Petersen
As the production mass of multiwall carbon nanotubes (MWCNT) increases, the potential for human and environmental exposure to MWCNTs may also increase. We have shown that exposing an aqueous suspension of pristine MWCNTs to an intense oxidative treatment in an electrochemical reactor, equipped with an efficient hydroxyl radical generating Boron Doped Diamond (BDD) anode, leads to their almost complete mineralization. Thermal optical transmittance analysis showed a total carbon mass loss of over two orders of magnitude due to the electrochemical treatment, a result consistent with measurements of the degraded MWCNT suspensions using UV-vis absorbance...
April 26, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29778028/functional-lignocellulosic-material-for-the-remediation-of-copper-ii-ions-from-water-towards-the-design-of-a-wood-filter
#9
Selin Vitas, Tobias Keplinger, Nico Reichholf, Renato Figi, Etienne Cabane
In this study, the chemical modification of bulk beech wood is described along with its utilization as biosorbent for the remediation of copper from water. The material was prepared by esterification using anhydrides, and reaction conditions were optimized to propose a greener process, in particular by reducing the amount of solvent. This modification yields a lignocellulosic material whose native structure is preserved, with an increased amount of carboxylic groups (up to 3 mmol/g). We demonstrate that the material can remove up to 95% of copper from low concentration solutions (100- 500 ppm)...
May 9, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29778020/eosin-y-sensitized-core-shell-tio-2-zno-nano-structured-photoanodes-for-dye-sensitized-solar-cell-applications
#10
V S Manikandan, Akshaya K Palai, Smita Mohanty, Sanjay K Nayak
In the current investigation, TiO2 and TiO2 -ZnO (core-shell) spherical nanoparticles were synthesized by simple combined hydrolysis and refluxing method. A TiO2 core nanomaterial on the shell material of ZnO was synthesized by utilizing variable ratios of ZnO. The structural characterization of TiO2 -ZnO core/shell nanoparticles were done by XRD analysis. The spherical structured morphology of the TiO2 -ZnO has been confirmed through field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM) studies...
May 3, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29778009/exploring-opioid-use-disorder-its-impact-and-treatment-among-individuals-experiencing-homelessness-as-part-of-a-family
#11
Avik Chatterjee, Eun Jin Yu, Lindsay Tishberg
BACKGROUND: Opioid Use Disorder (OUD) causes significant morbidity and mortality among people experiencing homelessness. We aimed to explore the unique way in which OUD impacts individuals experiencing homelessness as part of a family. METHODS: We conducted semi-structured interviews with adults experiencing OUD staying in Boston-area family shelters along with dependent children. We used Borkan's Immersion-Crystallization method to uncover themes from interview transcripts...
May 12, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29778004/learning-homophones-in-context-easy-cases-are-favored-in-the-lexicon-of-natural-languages
#12
Isabelle Dautriche, Laia Fibla, Anne-Caroline Fievet, Anne Christophe
Even though ambiguous words are common in languages, children find it hard to learn homophones, where a single label applies to several distinct meanings (e.g., Mazzocco, 1997). The present work addresses this apparent discrepancy between learning abilities and typological pattern, with respect to homophony in the lexicon. In a series of five experiments, 20-month-old French children easily learnt a pair of homophones if the two meanings associated with the phonological form belonged to different syntactic categories, or to different semantic categories...
May 16, 2018: Cognitive Psychology
https://www.readbyqxmd.com/read/29777994/analysis-of-incidence-mortality-and-survival-for-pancreatic-and-biliary-tract-cancers-across-europe-with-assessment-of-influence-of-revised-european-age-standardisation-on-estimates
#13
Pamela Minicozzi, Tiziana Cassetti, Claudia Vener, Milena Sant
BACKGROUND: Pancreatic (PC) and biliary tract (BTC) cancers have higher incidence and mortality in Europe than elsewhere. We analysed time-trends in PC/BTC incidence, mortality, and survival across Europe. Since the European standard population (ESP) was recently revised to better represent European age structure, we also assessed the effect of adopting the revised ESP to age-standardise incidence and mortality data. METHODS: We analysed PCs/BTCs (≥15 years) diagnosed in 2000-2007 and followed-up to end of 2008, in 29 European countries across five regions: UK/Ireland, and northern, central, southern, and eastern Europe...
May 16, 2018: Cancer Epidemiology
https://www.readbyqxmd.com/read/29777989/synthesis-antiproliferative-activity-and-mechanism-of-gallium-iii-thiosemicarbazone-complexes-as-potential-anti-breast-cancer-agents
#14
Jinxu Qi, Qian Yao, Kun Qian, Liang Tian, Zhen Cheng, Dongmei Yang, Yihong Wang
Five thiosemicarbazone ligands were synthesized and characterized by condensation with different aldehydes or ketones by 4-phenylthiosemicarbazone. The representative dichlorido[2-(Di-2-pyridinylmethylene)-Nphenylhydrazinecarbothioamide-N,N,S]-gallium(III) (Ga4) was characterized by X-ray single crystal diffraction, which was 1:1 ligand/Ga(III) complexes. The structure-activity relationship of these ligands and Ga (III) complexes have been investigated, and the results demonstrate that the formation of Ga (III) complexes have significant antiproliferative activity over the corresponding ligands...
May 14, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29777988/insight-into-structural-requirements-for-selective-and-or-dual-cxcr3-and-cxcr4-allosteric-modulators
#15
Anja Kolarič, Urban Švajger, Tihomir Tomašič, Regine Brox, Theresa Frank, Nikola Minovski, Nuska Tschammer, Marko Anderluh
Based on the previously published pyrazolopyridine-based hit compound for which negative allosteric modulation of both CXCR3 and CXCR4 receptors was disclosed, we designed, synthesized and biologically evaluated a set of novel, not only negative, but also positive allosteric modulators with preserved pyrazolopyridine core. Compound 9e is a dual negative modulator, inhibiting G protein activity of both receptors. For CXCR4 receptor para-substituted aromatic group of compounds distinguishes between negative and positive modulation...
May 11, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29777982/documentation-and-analysis-of-traumatic-injuries-in-clinical-forensic-medicine-involving-structured-light-three-dimensional-surface-scanning-versus-photography
#16
Awatif Shamata, Tim Thompson
Non-contact three-dimensional (3D) surface scanning has been applied in forensic medicine and has been shown to mitigate shortcoming of traditional documentation methods. The aim of this paper is to assess the efficiency of structured light 3D surface scanning in recording traumatic injuries of live cases in clinical forensic medicine. The work was conducted in Medico-Legal Centre in Benghazi, Libya. A structured light 3D surface scanner and ordinary digital camera with close-up lens were used to record the injuries and to have 3D and two-dimensional (2D) documents of the same traumas...
May 10, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29777979/a-qualitative-study-of-disengagement-in-disadvantaged-areas-of-the-uk-you-come-through-your-door-and-you-lock-that-door
#17
M Romeo-Velilla, N Ellis, G Hurst, S Grogan, C Gidlow
Health inequalities are a major concern in the UK. Power imbalances are associated with health inequalities and should be challenged through health promotion and empowering strategies, enabling individuals who feel powerless to take control over their own life and act on the determinants of health (Green and Tones, 2010). This study aimed to explore resident expectations of a community engagement programme that intended to empower communities to take action on pre-identified priorities. The programme targeted communities in deprived areas of a mid-sized city in the UK...
May 16, 2018: Health & Place
https://www.readbyqxmd.com/read/29777976/exploration-of-the-effect-of-violent-crime-on-recreational-and-transportation-walking-by-path-and-structural-equation-models
#18
Devajyoti Deka, Charles T Brown, James Sinclair
To examine how violent crime affects people's recreational and transportation walking duration in daytime and after dark on a typical day, this study undertakes associative and causal analyses with geo-referenced crime data, street-audit data, and data collected through an intercept survey in a three-municipality region of New Jersey that is predominantly inhabited by low-income and minority populations. Survey data was collected from 1173 respondents at 87 intersections selected by stratified random sampling...
May 16, 2018: Health & Place
https://www.readbyqxmd.com/read/29777974/stable-photoluminescence-of-lanthanide-complexes-in-aqueous-media-through-metal-organic-frameworks-nanoparticles-with-plugged-surface
#19
Feng Chen, Liucan Wang, Yuxin Xing, Jixi Zhang
The photoluminescence stability of lanthanide complex in aqueous media is a prerequisite for diagnostics probes. The combination of building blocks working in concert to facilitate host-guest structures is now considered state of the art in surpassing this roadblock, yet there still remains a tremendous challenge. Here, a stable, highly-luminescent system was developed through trapping anionic complexes sensitized by tridentate pyridine-tetrazolate (pytz) ligands within the rigid framework of ZIF-8 (zeolitic imidazolate framework-8) particles (∼60 nm in size)...
May 16, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29777973/preparation-of-amine-functionalized-reduced-graphene-oxide-methyl-diethanolamine-nanofluid-and-its-application-for-improving-the-co-2-and-h-2-s-absorption
#20
Vahid Irani, Ahmad Tavasoli, Mehdi Vahidi
A novel approach was examined by addition of amine-modified reduced graphene oxide (rGO) to amine solutions in order to enhance the CO2 absorption capacity of amine solutions. Amine functionalized reduced graphene oxide (rGO)/methyl diethanolamine (MDEA) nanofluid was prepared for absorption of acid gases (CO2 , H2 S). GO was synthesized via a modified hummer method and functionalized through solvothermal method. As-synthesized NH2 -rGO was characterized by XRD, BET, SEM, FTIR, EDX and XPS analysis to determine the structure...
May 12, 2018: Journal of Colloid and Interface Science
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