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https://www.readbyqxmd.com/read/28432913/spontaneously-formed-redox-and-ph-sensitive-polymersomes-by-mpeg-based-cytocompatible-random-copolymers
#1
Partha Laskar, Joykrishna Dey, Sudip Kumar Ghosh
Stimuli-sensitive polymersomes are one of the important vehicles and have been extensively studied as smart drug delivery system. Polymersomes have added advantage over the micelles because of having the ability to carry not only hydrophobic but also hydrophilic guest in their aqueous core. Among various stimuli, the change of pH and redox reaction is very important for drug delivery purpose especially for anticancer drug. Therefore, in this work, two poly(ethylene glycol) methyl ether methacrylate (mPEG) containing hydrophilic random anionic copolymers, poly[(2-hydroxyethyl methacrylate-3,3'-dithiodipropanoic acid)x-co-(poly(ethylene glycol) methyl ether methacrylate)y], poly[(HEMA-DTDPA)x-co-mPEGy] with different copolymer ratios were designed and synthesized...
April 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28432906/hydrophobic-and-hydrophilic-properties-of-pollutants-as-a-factor-influencing-their-redistribution-during-snowpack-melt
#2
Krystyna Kozioł, Katarzyna Kozak, Żaneta Polkowska
Glaciers accumulate organic pollutants delivered by snow. However, our understanding of the exact dynamics of organic pollutants in the snowpack relies primarily on laboratory experiments and mathematical models. To fill the gap related to the detailed field data, we have conducted observations of melting snow profiles in two locations and three different stages of melting on one High Arctic glacier, as well as in superimposed ice. We monitored the chemical concentrations of formaldehyde, phenols, short-chain carboxylic acids, polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) and snow water equivalents to derive chemical loads...
April 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28432680/longitudinal-physical-activity-and-sedentary-behaviour-in-preschool-aged-children-with-cerebral-palsy-across-all-functional-levels
#3
Piyapa Keawutan, Kristie L Bell, Stina Oftedal, Robert S Ware, Richard D Stevenson, Peter S W Davies, Roslyn N Boyd
AIM: To investigate longitudinal changes of habitual physical activity (HPA) and sedentary time in children with cerebral palsy (CP) aged 1 year 6 months to 5 years across all functional abilities. METHOD: At study entry, 95 children (62 males, 33 females) were classified using the Gross Motor Function Classification System (GMFCS) at levels I (50), II (9), III (16), IV (6), and V (14). Physical activity was recorded on a total of 159 occasions at four possible time points: 1 year 6 months to 2 years; 2 years 6 months to 3 years; 4 years; and 5 years using ActiGraph for 3 days...
April 22, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28432470/male-behavioural-plasticity-depends-on-maternal-mating-status-in-the-two-spotted-spider-mite
#4
Keiko Oku, Tom P G van den Beuken
In haplodiploid organisms including the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae), both unmated and mated females can produce male offspring. A previous study reported that males produced by unmated females (UM males) find pre-reproductive females more quickly than males produced by mated females (M males) in T. urticae. However, it remains unclear what factors cause the difference. We investigated effects of maternal mating status on mate-searching behaviour of their sons by changing the sons' developmental environment...
April 21, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28432255/osmotic-activation-of-a-ca-2-dependent-phospholipase-c-pathway-that-regulates-%C3%A2-n-trpv1-mediated-currents-in-rat-supraoptic-neurons
#5
Vimal Bansal, Thomas E Fisher
The magnocellular neurosecretory cells (MNCs) of the hypothalamus regulate body fluid balance by releasing the hormones vasopressin (VP) and oxytocin (OT) in an osmolality-dependent manner. Elevations of external osmolality increase MNC firing and hormone release. MNC osmosensitivity is largely due to activation of a mechanosensitive non-selective cation current that responds to osmotically-evoked changes in MNC volume and is mediated by an N-terminal variant of the TRPV1 channel (∆N TRPV1). We report a novel mechanism by which increases in osmolality may modulate ∆N TRPV1-mediated currents and thus influence MNC electrical behaviour...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28432233/using-motivational-interviewing-can-help-vets-change-client-behaviour
#6
(no author information available yet)
No abstract text is available yet for this article.
April 22, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28432210/a-randomised-controlled-trial-of-a-complex-intervention-to-reduce-children-s-exposure-to-secondhand-smoke-in-the-home
#7
Elena Ratschen, Rebecca Thorley, Laura Jones, Magdalena Opazo Breton, Juliette Cook, Ann McNeill, John Britton, Tim Coleman, Sarah Lewis
OBJECTIVES: Exposing children to secondhand tobacco smoke (SHS) causes significant harm and occurs predominantly through smoking by caregivers in the family home. We report a trial of a complex intervention designed to reduce secondhand smoke exposure of children whose primary caregiver feels unable or unwilling to quit smoking. DESIGN: An open-label, parallel, randomised controlled trial. SETTING: Deprived communities in Nottingham City and County, England PARTICIPANTS: Caregivers resident in Nottingham City and County in England who were at least 18 years old, the main caregiver of a child aged under 5 years living in their household, and reported that they were smoking tobacco inside their home...
April 21, 2017: Tobacco Control
https://www.readbyqxmd.com/read/28432185/exogenous-cushing-s-syndrome-due-to-a-chinese-herbalist-s-prescription-of-ointment-containing-dexamethasone
#8
Viola Franke, Winnie Francien Scholtens, Ines Alexandra von Rosenstiel, Marie Jose Walenkamp
Eczema in children is a chronic disabling condition. The impact of this condition on the lives of families is often underestimated by conventional physicians. As a consequence parents may investigate complementary treatment options. Close monitoring by a paediatrician is essential, considering that a variety of adverse effects can occur during the use of complementary treatment. We present a 5-year-old girl with eczema. She visited a Chinese herbalist who prescribed an ointment. The parents noticed that the eczema resolved fast, itching decreased and she was finally sleeping well...
April 20, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28431575/heterogeneous-ribonuclear-protein-a3-hnrnp-a3-is-present-in-dipeptide-repeat-protein-containing-inclusions-in-frontotemporal-lobar-degeneration-and-motor-neurone-disease-associated-with-expansions-in-c9orf72-gene
#9
Yvonne S Davidson, Louis Flood, Andrew C Robinson, Yoshihiro Nihei, Kohji Mori, Sara Rollinson, Anna Richardson, Bridget C Benson, Matthew Jones, Julie S Snowden, Stuart Pickering-Brown, Christian Haass, Tammaryn Lashley, David M A Mann
Frontotemporal Lobar Degeneration (FTLD) encompasses certain related neurodegenerative disorders which alter behaviour, personality and language. Heterogeneous ribonuclear proteins (hnRNPs) maintain RNA metabolism and changes in their function may underpin the pathogenesis of FTLD. Immunostaining for hnRNP A1, A2/B1 and A3 was performed on sections of temporal cortex with hippocampus from 61 patients with FTLD, stratified by pathological hallmarks into FTLD-tau and FTLD-TDP type A, B and C subtypes, and by genetics into patients with C9orf72 expansions, MAPT or GRN mutations, or those without known mutation...
April 21, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28431301/diversity-training-for-the-community-aged-care-workers-a-conceptual-framework-for-evaluation
#10
Arti Appannah, Claudia Meyer, Rajna Ogrin, Sally McMillan, Elizabeth Barrett, Colette Browning
Older Australians are an increasingly diverse population, with variable characteristics such as culture, sexual orientation, socioeconomic status, and physical capabilities potentially influencing their participation in healthcare. In response, community aged care workers may need to increase skills and uptake of knowledge into practice regarding diversity through appropriate training interventions. Diversity training (DT) programs have traditionally existed in the realm of business, with little research attention devoted to scientifically evaluating the outcomes of training directed at community aged care workers...
March 23, 2017: Evaluation and Program Planning
https://www.readbyqxmd.com/read/28430961/whether-people-believe-that-overweight-is-unhealthy-depends-on-their-bmi
#11
Simone Dohle, Tamara Bucher
An online experiment with 536 participants was conducted to investigate how people who differ in body weight perceive scientific information on body weight and mortality. The results showed that individuals who were aware that they are overweight were more inclined to trust a study that showed that overweight reduces mortality (P < 0.001). This finding is relevant as the BMI-mortality association remains a matter of scientific and public debate and people's risk perceptions influences their willingness to change behaviour...
April 18, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28430928/typology-and-dynamics-of-heavier-drinking-styles-in-great-britain-1978-2010
#12
Robin C Purshouse, Alan Brennan, Daniel Moyo, James Nicholls, Paul Norman
Aims: To identify a typology of heavier drinking styles in Great Britain and to identify socio-demographic trends in the typology over the period 1978-2010. Methods: We applied multiple correspondence analysis and agglomerative hierarchical clustering to beverage-specific quantity-frequency measures of alcohol consumption in the repeated cross-sectional General Lifestyle Survey of Great Britain, 1978-2010. The cluster analysis focuses on the 60,043 adult respondents over this period reporting average drinking levels above the UK Government guidelines...
May 1, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28430911/a-devices-game-of-thrones-cardiac-resynchronization-therapy-vs-pacemaker
#13
Sara Moura-Ferreira, Helena Gonçalves, Marco Oliveira, João Primo, Paulo Fonseca, José Ribeiro, Elisabeth Santos, Nuno Pelicano, Dinis Martins, Vasco Gama
Aims: Oversensing can interfere with biventricular pacing. Cardiac Resynchronization Therapy (CRT) output inhibition due to automatic brady mode change from a sensing to a pacing mode of a previously implanted pacemaker as it reached battery capacity depleted indicator has not been previously published in the medical literature. Methods and Results: We report the first case of CRT output inhibition in a pacemaker dependent patient due to electrical stimuli from a previously right-sided implanted pacemaker, after unaware reversion of OVO mode (O = no chambers paced; V = ventricular sensing; O = no response to sensing) to backup VVI (V = ventricular pacing; V = ventricular sensing; I = inhibitory response to sensing) when it reached the elective replacement interval...
April 18, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28430137/parent-partner-co-parent-or-partnership-the-need-for-clarity-as-family-systems-thinking-takes-hold-in-the-quest-to-motivate-behavioural-change
#14
Chris May, Li Kheng Chai, Tracy Burrows
Research is increasingly pointing to the importance of extending the focus of childhood obesity intervention to include fathers, fathering figures, and other members of a child's primary parenting network. Advances in communication technology are now making it possible to achieve this aim, within current resources, using modalities such text messaging, web-based resources and apps that extend intervention to parents not in attendance at face to face interactions. However, published research is often unclear as to which parent/s they targeted or engaged with, whether interventions planned to influence behaviours and capabilities across family systems, and how this can be achieved...
April 21, 2017: Children
https://www.readbyqxmd.com/read/28429915/adolescent-women-as-a-key-target-population-for-community-nutrition-education-programs-in-indonesia
#15
Amy Savage, Judhiastuty Februhartanty, Anthony Worsley
BACKGROUND AND OBJECTIVES: Adolescence is a critical life-stage that sets the foundation for health in adulthood. Adolescent women are a unique population and should be targeted as such for nutrition promotion activities. Using Indonesia as a case study, this qualitative study aimed to identify existing nutrition promotion programs aimed at adolescent girls, how best to target this population and effective recommendations to inform nutrition education program design for this important group...
May 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28429753/impact-of-surface-active-guanidinium-tetramethylguanidinium-and-cholinium-based-ionic-liquids-on-vibrio-fischeri-cells-and-dipalmitoylphosphatidylcholine-liposomes
#16
Antti H Rantamäki, Suvi-Katriina Ruokonen, Evangelos Sklavounos, Lasse Kyllönen, Alistair W T King, Susanne K Wiedmer
We investigated the toxicological effect of seven novel cholinium, guanidinium, and tetramethylguanidinium carboxylate ionic liquids (ILs) from an ecotoxicological point of view. The emphasis was on the potential structure-toxicity dependency of these surface-active ILs in aqueous environment. The median effective concentrations (EC50) were defined for each IL using Vibrio (Aliivibrio) fischeri marine bacteria. Dipalmitoylphosphatidylcholine (DPPC) liposomes were used as biomimetic lipid membranes to study the interactions between the surface-active ILs and the liposomes...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429582/obesity-and-addiction-can-a-complication-of-surgery-help-us-understand-the-connection
#17
REVIEW
V Ivezaj, L E Stoeckel, N M Avena, S C Benoit, A Conason, J F Davis, A N Gearhardt, R Goldman, J E Mitchell, C N Ochner, K K Saules, K J Steffen, E Stice, S Sogg
Obesity is a multifactorial, chronic disease that has proven difficult to treat. An increased understanding of aetiological mechanisms is critical to the development of more effective obesity prevention and treatment strategies. A growing body of empirical evidence has demonstrated parallels between obesity, overeating and substance abuse, including shared behavioural, psychological and neurophysiological factors implicated in the excessive intake of both food and substances of abuse. Several different lines of research have recently emerged that hold the potential to shed light on the connection between obesity, food reward and addiction, with studies examining changes in alcohol use/misuse after weight loss surgery providing a particularly interesting perspective on these interrelationships...
April 21, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28429013/a-stochastic-model-for-directional-changes-of-swimming-bacteria
#18
G Fier, D Hansmann, R C Buceta
In this work we introduce a stochastic model to describe directional changes in the movement of swimming bacteria. We use the probability density function (PDF) of turn angles, measured on tumbling wild-type E. coli, to build a Langevin equation for the deflection of the bacterial body swimming in isotropic media. We have solved this equation analytically by means of the Green function method and shown that three parameters are sufficient to describe the movement: the characteristic time, the steady-state solution and the control parameter...
April 21, 2017: Soft Matter
https://www.readbyqxmd.com/read/28428330/genomic-responses-to-socio-sexual-environment-in-male-drosophila-melanogaster-exposed-to-conspecific-rivals
#19
Irina I Mohorianu, Amanda Bretman, Damian T Smith, Emily Fowler, Tamas Dalmay, Tracey Chapman
Socio-sexual environments have profound effects on fitness. Local sex ratios can alter the threat of sexual competition, to which males respond via plasticity in reproductive behaviours and ejaculate composition. In Drosophila melanogaster, males detect the presence of conspecific mating rivals prior to mating using multiple, redundant sensory cues. Males that respond to rivals gain significant fitness benefits by altering mating duration and ejaculate composition. Here we investigated the underlying genome-wide changes involved...
April 20, 2017: RNA
https://www.readbyqxmd.com/read/28427543/changes-in-physical-activity-and-sedentary-behaviour-following-pulmonary-rehabilitation-in-patients-with-copd
#20
Rafael Mesquita, Kenneth Meijer, Fabio Pitta, Helena Azcuna, Yvonne M J Goërtz, Johannes M N Essers, Emiel F M Wouters, Martijn A Spruit
A more profound investigation about the responses in activity levels following pulmonary rehabilitation (PR) in patients with COPD is needed. We aimed to describe groups of patients with COPD according to patterns of change in physical activity and sedentary behaviour following PR. 90 patients with COPD (60% male; mean age 67 ± 8; median FEV1 47 (32-62) %pred) completed a comprehensive PR programme. A triaxial accelerometer was used to assess the time in sedentary behaviour, light activities and moderate-to-vigorous physical activity (MVPA)...
May 2017: Respiratory Medicine
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