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https://www.readbyqxmd.com/read/28938209/interactions-between-biogenic-selenium-nanoparticles-and-goethite-colloids-and-consequence-for-remediation-of-elemental-mercury-contaminated-groundwater
#1
Xiaonan Wang, Daoyong Zhang, Haifeng Qian, Yan Liang, Xiangliang Pan, Geoffrey Michael Gadd
Ubiquitous colloidal minerals such as goethite can have a significant impact on the performance of nanoparticles-based groundwater remediation due to aggregation. Heteroaggregation and retention of Se nanoparticles (SeNPs) by goethite in groundwater, and its impact on Hg(0) remediation by SeNPs were investigated in this study. In order to mitigate the adverse effects of aggregation, the effects of bacterial extracellular polymeric substances (EPS) on the stability of SeNPs and Hg(0) sequestration using SeNPs were also evaluated...
September 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28938203/green-synthesis-biological-and-spectroscopic-study-on-the-interaction-of-multi-component-mannich-bases-of-imidazo-2-1-b-benzothiazoles-with-human-serum-albumin
#2
Swetha K Maddili, Leela Prasad Yandrati, Shakuntala Siddam, Vijaya Kumar Kannekanti, Himabindu Gandham
A series of Mannich bases of imidazo[2, l-b]benzothiazoles were prepared through one-pot multi-component reaction in the presence of water as an eco-friendly solvent. All the synthesized compounds were confirmed from IR, (1)HNMR, (13)CNMR, and Mass spectroscopy. Evaluation of in vitro anti-inflammatory and anti-microbial activities of all the synthesized derivatives was further accomplished. These results clearly displayed that compound 6d exhibited outstanding anti-inflammatory activity with a percentage inhibition of 70...
August 19, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28938196/sorption-of-uranium-vi-onto-hydrous-ferric-oxide-modified-zeolite-assessment-of-the-effect-of-ph-contact-time-temperature-selected-cations-and-anions-on-sorbent-interactions
#3
Pfano Mathews Nekhunguni, Nikita Tawanda Tavengwa, Hlanganani Tutu
Zeolites are commonly used as adsorbents for metal removal in most applications e.g. in wastewater. However, the ubiquity of iron in such systems may, in the long-term, distort the true interactions and mechanisms of contaminant removal as a result of modification of the zeolite surface. In this study, this potential phenomenon was assessed for the removal of uranium(VI) from aqueous solution by hydrous ferric oxide-modified zeolite (HFOMZ). This was prepared by precipitating iron hydroxide (the common precipitate of iron in aqueous systems) onto zeolite...
September 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28938195/understanding-public-perception-of-hydraulic-fracturing-a-case-study-in-spain
#4
D Costa, V Pereira, J Góis, A Danko, A Fiúza
Public acceptance is crucial for the implementation of energy technologies. Hydraulic fracturing is a technology widely used in the USA for natural gas production from shale formations, but currently finds strong public opposition worldwide, especially in Europe. Shale gas exploitation and exploration have the potential to significantly reduce import dependency in several countries, including Spain. To better understand public opinion on this issue, this article reports a survey targeting both the entire Spanish population and the inhabitants of the province of Burgos, the location where shale gas exploration permits have already been issued...
September 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28938165/a-novel-dopa-albumin-based-tissue-adhesive-for-internal-medical-applications
#5
Wenzhen Zhu, Yvonne Peck, Jabed Iqbal, Dong-An Wang
To date, existing tissue adhesives have various weak points in gluing kinetics and stability - particularly, in biocompatibility, which make most of them remain suboptimal for internal conditions. Herein, a novel mussel-inspired "BCD" tissue glue made of bovine serum albumin (BSA), citrate acid (CA) and dopamine was developed aiming at internal medical applications. BSA was employed as a natural and biocompatible macromolecular backbone; CA was introduced as a dual-functional intermediate to increase reactive carboxyl sites for engraftment of dopamine onto BSA backbone and also block the competing reactive amines from the proteinic backbone...
September 14, 2017: Biomaterials
https://www.readbyqxmd.com/read/28938147/development-of-an-experimental-model-of-burst-fracture-with-damage-characterization-of-the-vertebral-bodies-under-dynamic-conditions
#6
A Germaneau, T Vendeuvre, M Saget, P Doumalin, J C Dupré, F Brémand, F Hesser, C Brèque, P Maxy, M Roulaud, O Monlezun, P Rigoard
BACKGROUND: Burst fractures represent a significant proportion of fractures of the thoracolumbar junction. The recent advent of minimally invasive techniques has revolutionized the surgical treatment of this type of fracture. However mechanical behaviour and primary stability offered by these solutions have to be proved from experimental validation tests on cadaveric specimens. Therefore, the aim of this study was to develop an original and reproducible model of burst fracture under dynamic impact...
September 13, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28938104/do-nurses-personal-health-behaviours-impact-on-their-health-promotion-practice-a-systematic-review
#7
REVIEW
Muireann Kelly, Jane Wills, Susie Sykes
BACKGROUND: There is a growing expectation in national and international policy and from professional bodies that nurses be role models for healthy behaviours, the rationale being that there is a relationship between nurses' personal health and the adoption of healthier behaviours by patients. This may be from patients being motivated by, and modelling, the visible healthy lifestyle of the nurse or that nurses are more willing to promote the health of their patients by offering public health or health promotion advice and referring the patient to support services...
August 23, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28938103/let-s-talk-about-sex-a-qualitative-study-exploring-the-experiences-of-hiv-nurses-when-discussing-sexual-risk-behaviours-with-hiv-positive-men-who-have-sex-with-men
#8
S de Munnik, C den Daas, H S M Ammerlaan, G Kok, M S Raethke, S C J M Vervoort
BACKGROUND: Despite prevention efforts, the incidence of sexually transmitted infection among HIV-positive men who have sex with men remains high, which is indicative of unchanged sexual risk behaviour. Discussing sexual risk behaviour has been shown to help prevent sexually transmitted infections among HIV-positive men who have sex with men. OBJECTIVES: The aim of this study was to identify factors that influence whether - and how - specialised HIV nurses discuss sexual risk behaviour with HIV-positive men who have sex with men...
September 6, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28938102/self-management-support-at-the-end-of-life-patients-carers-and-professionals-perspectives-on-managing-medicines
#9
N Campling, A Richardson, M Mulvey, M Bennett, B Johnston, S Latter
BACKGROUND: Pain is a frequently reported symptom by patients approaching the end of life and well-established that patients and carers hold fears relating to opioids, and experience side effects related to their use. The management of medicines is intrinsic to achieving effective pain relief. The concept of self-management support whilst well characterised in the context of chronic illness has not been elaborated with respect to end of life care. AIM: To identify patient, carer and professional views on the concept of self-management support at end of life, specifically in relation to analgesia and related medicines (for side-effect management) in order to describe, characterise and explain self-management support in this context...
September 6, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28938056/short-term-effects-of-light-quality-on-leaf-gas-exchange-and-hydraulic-properties-of-silver-birch-betula-pendula
#10
Aigar Niglas, Kaisa Papp, Maciej Sekiewicz, Arne Sellin
Leaves have to acclimatize to heterogeneous radiation fields inside forest canopies in order to efficiently exploit diverse light conditions. Short-term effects of light quality on photosynthetic gas exchange, leaf water use and hydraulic traits were studied on Betula pendula Roth shoots cut from upper and lower thirds of the canopy of 39- to 35-year-old trees growing in natural forest stand, and illuminated with white, red or blue light in the laboratory. Photosynthetic machinery of the leaves developed in different spectral conditions acclimated differently with respect to incident light spectrum: the stimulating effect of complete visible spectrum (white light) on net photosynthesis is more pronounced in upper-canopy layers...
September 1, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28937576/chronic-pain-in-families-a-cross-sectional-study-of-shared-social-behavioural-and-environmental-influences
#11
Paul Campbell, Kelvin P Jordan, Blair H Smith, Kate M Dunn
Chronic pain is common and creates significant burden to the individual and society. Emerging research has shown the influence of the family environment on pain outcomes. However it is not clear what shared factors between family members associate with chronic pain. This study aimed to investigate the family level contribution to an individual's chronic pain status. This was a cross sectional study using the Generation Scotland: Scottish Family Health Study dataset. This study focused on a nested cohort of dyads (only 2 relatives per family, n = 2714)...
September 11, 2017: Pain
https://www.readbyqxmd.com/read/28936936/-treatment-of-dementia
#12
K Blom, G A H van den Elsen, H L Koek, J B Sanders, H C Kruithof, J A H R Claassen
- Treatment options for patients with dementia are limited. This article provides an overview of possible interventions, both pharmaceutical and non-pharmaceutical, for Alzheimer's disease, vascular dementia and mixed dementia.- Pharmaceutical treatment options include cholinesterase inhibitors, memantine and experimental medication. Cholinesterase inhibitors are only recommended for Alzheimer's disease and mixed dementia, not for vascular dementia or mild cognitive impairment. There is no proof of effectiveness for the other pharmaceutical options...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28936786/normalized-paper-credit-assignment-a-solution-for-the-ethical-dilemma-induced-by-multiple-important-authors
#13
Hui Fang
With the growth of research collaborations, the average number of authors per article and the phenomenon of equally important authorships have increased. The essence of the phenomenon of equally important authorships is the approximately equal importance of authors, both because of the difficulties in comparing authors' contributions to a paper and some actual research evaluation practices, which (approximately) give full paper credit only to the most important authors. A mechanism for indicating that various authors contributed equally is required to maintain and strengthen collaboration...
September 21, 2017: Science and Engineering Ethics
https://www.readbyqxmd.com/read/28936752/postpartum-specific-anxiety-as-a-predictor-of-infant-feeding-outcomes-and-perceptions-of-infant-feeding-behaviours-new-evidence-for-childbearing-specific-measures-of-mood
#14
Victoria Fallon, Jason Christian Grovenor Halford, Kate Mary Bennett, Joanne Allison Harrold
Studies of pregnancy-specific anxiety suggest that it is a distinct construct which predicts perinatal outcomes more effectively than other general measures of anxiety. In response, a novel measure of postpartum-specific anxiety (PSAS) has been developed and validated, but it is not yet clear whether it possesses the same predictive power as its pregnancy-specific counterparts. The aim of this short-term prospective study was to (a) test the predictive validity of the PSAS in the context of one specific perinatal outcome, infant-feeding, and (b) examine whether the PSAS may be more efficacious at predicting infant-feeding outcomes and behaviours than the more commonly used general measures...
September 21, 2017: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/28936620/osteoclast-stimulation-factor-1-ostf1-knockout-increases-trabecular-bone-mass-in-mice
#15
Matthieu Vermeren, Rodanthi Lyraki, Sachin Wani, Rannar Airik, Omar Albagha, Richard Mort, Friedhelm Hildebrandt, Toby Hurd
Osteoclast stimulation factor 1 (OSTF1) is an SH3-domain containing protein that was initially identified as a factor involved in the indirect activation of osteoclasts. It has been linked to spinal muscular atrophy in humans through its interaction with SMN1, and is one of six genes deleted in a human developmental microdeletion syndrome. To investigate the function of OSTF1, we generated an Ostf1 knockout mouse model, with exons 3 and 4 of Ostf1 replaced by a LacZ orf. Extensive X-Gal staining was performed to examine the developmental and adult expression pattern, followed by phenotyping...
September 21, 2017: Mammalian Genome: Official Journal of the International Mammalian Genome Society
https://www.readbyqxmd.com/read/28936597/terminal-weaning-or-immediate-extubation-for-withdrawing-mechanical-ventilation-in-critically-ill-patients-the-arreve-observational-study
#16
René Robert, Amélie Le Gouge, Nancy Kentish-Barnes, Alice Cottereau, Bruno Giraudeau, Mélanie Adda, Djillali Annane, Juliette Audibert, François Barbier, Patrick Bardou, Simon Bourcier, Jeremy Bourenne, Alexandre Boyer, François Brenas, Vincent Das, Arnaud Desachy, Jérôme Devaquet, Marc Feissel, Frédérique Ganster, Maïté Garrouste-Orgeas, Guillaume Grillet, Olivier Guisset, Rebecca Hamidfar-Roy, Anne-Claire Hyacinthe, Sebastien Jochmans, Mercé Jourdain, Alexandre Lautrette, Nicolas Lerolle, Olivier Lesieur, Fabien Lion, Philippe Mateu, Bruno Megarbane, Sybille Merceron, Emmanuelle Mercier, Jonathan Messika, Paul Morin-Longuet, Bénédicte Philippon-Jouve, Jean-Pierre Quenot, Anne Renault, Xavier Repesse, Jean-Philippe Rigaud, Ségolène Robin, Antoine Roquilly, Amélie Seguin, Didier Thevenin, Patrice Tirot, Isabelle Vinatier, Elie Azoulay, Jean Reignier
PURPOSE: The relative merits of immediate extubation versus terminal weaning for mechanical ventilation withdrawal are controversial, particularly regarding the experience of patients and relatives. METHODS: This prospective observational multicentre study (ARREVE) was done in 43 French ICUs to compare terminal weaning and immediate extubation, as chosen by the ICU team. Terminal weaning was a gradual decrease in the amount of ventilatory assistance and immediate extubation was extubation without any previous decrease in ventilatory assistance...
September 22, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28936527/origin-of-spray-formation-during-impact-on-heated-surfaces
#17
Michiel A J van Limbeek, Paul B J Hoefnagels, Chao Sun, Detlef Lohse
In many applications, it is crucial to control the heat transfer rate of impacting drops on a heated plate. When the solid exceeds the so-called Leidenfrost temperature, an impacting drop is prevented from contacting the plate by its own evaporation. But the decrease in the resulting cooling efficiency of the impacting drop is yet not quantitatively understood. Here, we experimentally study the impact of such water drops on smooth heated surfaces of various substances. We demonstrate that, in contrast to previous results for other liquids, water exhibits spray in the vertical direction when impacting sapphire and silicon...
September 22, 2017: Soft Matter
https://www.readbyqxmd.com/read/28936506/anomalous-electroless-deposition-of-less-noble-metals-on-cu-in-ionic-liquids-and-its-application-towards-battery-electrodes
#18
Abhishek Lahiri, Natalia Borisenko, Mark Olschewski, Giridhar Pulletikurthi, Frank Endres
Electroless deposition can be triggered by the difference in the redox potentials between two metals in an electrolyte. In aqueous electrochemistry, galvanic displacement takes place according to the electrochemical series wherein a more noble metal can displace a less noble metal. Herein we show anomalous behaviour in ionic liquids wherein less noble metals such as Fe and Sb were deposited on Cu at temperatures from 25 to 60 °C. Fe formed spherical structures whereas Cu2Sb/Sb formed nanoplates. A multistep process during the electroless deposition of Sb on Cu took place which was discerned from in situ XPS, and mass spectrometry...
September 22, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28936467/peroxisome-motility-measurement-and-quantification-assay
#19
Jeremy Metz, Inês G Castro, Michael Schrader
Organelle movement, distribution and interaction contribute to the organisation of the eukaryotic cell. Peroxisomes are multifunctional organelles which contribute to cellular lipid metabolism and ROS homeostasis. They distribute uniformly in mammalian cells and move along microtubules via kinesin and dynein motors. Their metabolic cooperation with mitochondria and the endoplasmic reticulum (ER) is essential for the β-oxidation of fatty acids and the synthesis of myelin lipids and polyunsaturated fatty acids...
September 5, 2017: Bio-protocol
https://www.readbyqxmd.com/read/28936357/food-avoidance-and-restriction-in-adults-a-cross-sectional-pilot-study-comparing-patients-from-an-immunology-clinic-to-a-general-practice
#20
Michael Fitzgerald, Brad Frankum
BACKGROUND: With the introduction of avoidant/restrictive food intake disorder (ARFID) in the Diagnostic and Statistical Manual - fifth edition, there is an increased need to understand the prevalence and pattern of food avoidance and restriction in adults. High rates of food allergy and intolerance in immunology clinic populations, and subsequent high rates of elimination diets, place these individuals at a greater risk of developing pathological eating behaviours. This descriptive cross sectional pilot study aims to provide preliminary data on the prevalence and nature of food avoidance and restriction in an adult population, and to explore the reasons for this behaviour...
2017: Journal of Eating Disorders
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