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Fabien Gagnon, Patrick Poulin, Jean-Marc Leclerc, Jean-Claude Dessau, Aryan Abab, Pamela Arsenault, Fady El-Turaby, Guillaume Lachance-Paquette, Félix-Antoine Vézina
OBJECTIVES: To invite and support managers of child care centres to measure radon concentrations in their buildings. Their ability to carry out a measurement protocol and communication plan was also evaluated as well as the intention of parents and educators to test for radon at home. PARTICIPANTS: Managers, parents and educators of child care centres. SETTING: 36 child care centres located in two priority investigation areas in Québec. INTERVENTION: A kit containing radon detectors with installation and recovery instructions was shipped by mail in addition to factsheets intended for parents and educators...
October 20, 2016: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
Luis C O Dacal, A Cantarero
The existence of polytypism in semiconductor nanostructures gives rise to the appearance of stacking faults which many times can be treated as quantum wells. In some cases, despite of a careful growth, the polytypism can be hardly avoided. In this work, we perform an ab initio study of zincblende stacking faults in a wurtzite InP system, using the supercell approach and taking the limit of low density of narrow stacking faults regions. Our results confirm the type II band alignment between the phases, producing a reliable qualitative description of the band gap evolution along the growth axis...
September 26, 2016: Scientific Reports
L Matthew Law, David A Bulkin, David M Smith
Hippocampal neurons exhibit spatially localized firing patterns that, at the population level, represent a particular environment or context. Many studies have examined how hippocampal neurons switch from an existing representation to a new one when the environment is changed, a process referred to as remapping. New representations were commonly thought to emerge rapidly, within a few minutes and then remain remarkably stable thereafter. However, a number of recent studies suggest that hippocampal representations may be more fluid than previously thought and most of the previous studies only required that subjects switch from a familiar environment to a novel one...
September 20, 2016: Hippocampus
Giulio E Lancioni, Nirbhay Singh, Mark F O'Reilly, Jeff Sigafoos, Fiora D'Amico, Francesca Buonocunto, Jorge Navarro, Crocifissa Lanzilotti, Pietro Fiore, Marisa Megna, Sabino Damiani, Riccardo Marvulli
BACKGROUND: Post-coma persons in a minimally conscious state (MCS) and with extensive motor impairment cannot independently access and control environmental stimulation. AIM: Assessing the effects of a microswitch-aided program aimed at helping MCS persons develop responding and stimulation control and conducting a social validation/evaluation of the program. DESIGN: A single-subject ABAB design was used for each participant to determine the impact of the program on his or her responding...
September 1, 2016: European Journal of Physical and Rehabilitation Medicine
Susann Deike, Matthias Deliano, André Brechmann
One hypothesis concerning the neural underpinnings of auditory streaming states that frequency tuning of tonotopically organized neurons in primary auditory fields in combination with physiological forward suppression is necessary for the separation of representations of high-frequency A and low-frequency B tones. The extent of spatial overlap between the tonotopic activations of A and B tones is thought to underlie the perceptual organization of streaming sequences into one coherent or two separate streams...
August 18, 2016: Neuropsychologia
Junjie Zhang, Yu-Sheng Chen, D Phelan, Hong Zheng, M R Norman, J F Mitchell
The quasi-2D nickelate La4Ni3O8 (La-438), consisting of trilayer networks of square planar Ni ions, is a member of the so-called T' family, which is derived from the Ruddlesden-Popper (R-P) parent compound La4Ni3O10-x by removing two oxygen atoms and rearranging the rock salt layers to fluorite-type layers. Although previous studies on polycrystalline samples have identified a 105-K phase transition with a pronounced electronic and magnetic response but weak lattice character, no consensus on the origin of this transition has been reached...
August 9, 2016: Proceedings of the National Academy of Sciences of the United States of America
Selda Halis, A Ken Inge, Niklas Dehning, Thomas Weyrich, Helge Reinsch, Norbert Stock
Two new dihydroxybenzoquinone-based metal-organic frameworks, ((CH3)2NH2)3[Al4(L1)3(L1(•))3]·3DMF (1, denoted CAU-20) and ((CH3)2NH2)3[Al4(L2)3(L2(•))3]·9DMF (2, denoted CAU-20-Cl2), were synthesized at 120 °C in DMF using 2,5-dihydroxy-p-benzoquinone ((C6H2(OH)2(O)2), H2L1) and 2,5-dichloro-3,6-dihydroxy-p-benzoquinone ((C6Cl2(OH)2(O)2), H2L2), respectively. Compared to other Al-MOFs, which contain carboxylate or phosphonate groups that connect the metal sites, in 1 and 2 the Al(3+) are coordinated by oxido groups...
August 1, 2016: Inorganic Chemistry
Alexandra Protopopova, Dmitri Kisten, Clive Wynne
The aim of this study was to develop a humane alternative to the traditional remote devices that deliver punishers contingent on home-alone dog barking. Specifically, we evaluated the use of remote delivery of food contingent on intervals of not barking during the pet owner's absence. In Experiment 1, 5 dogs with a history of home-alone nuisance barking were recruited. Using an ABAB reversal design, we demonstrated that contingent remote delivery of food decreased home-alone barking for 3 of the dogs. In Experiment 2, we demonstrated that it is possible to thin the differential-reinforcement-of-other-behavior (DRO) schedule gradually, resulting in a potentially more acceptable treatment...
July 11, 2016: Journal of Applied Behavior Analysis
Sharon X Lin, Leanne Morrison, Peter W F Smith, Charlie Hargood, Mark Weal, Lucy Yardley
N-of-1 study designs involve the collection and analysis of repeated measures data from an individual not using an intervention and using an intervention. This study explores the use of semi-parametric and parametric bootstrap tests in the analysis of N-of-1 studies under a single time series framework in the presence of autocorrelation. When the Type I error rates of bootstrap tests are compared to Wald tests, our results show that the bootstrap tests have more desirable properties. We compare the results for normally distributed errors with those for contaminated normally distributed errors and find that, except when there is relatively large autocorrelation, there is little difference between the power of the parametric and semi-parametric bootstrap tests...
June 24, 2016: British Journal of Mathematical and Statistical Psychology
Serena Vanzan, David Wilkinson, Heather Ferguson, Patrick Pullicino, Mohamed Sakel
OBJECTIVE: To investigate whether caloric vestibular stimulation, a non-invasive form of neuro-modulation, alters the level of awareness in people residing in a minimally conscious state. DESIGN: Single-case (n = 2), prospective, controlled (ABAB) efficacy study. SETTING: Tertiary, neuro-rehabilitation inpatient ward within a university hospital. PARTICIPANTS: Two individuals in a minimally conscious state. INTERVENTION: Left ear caloric vestibular stimulation was performed in two four/five-week blocks interleaved with two four/five-week blocks of sham stimulation...
April 27, 2016: Clinical Rehabilitation
Salima Punja, Cecilia Bukutu, Larissa Shamseer, Margaret Sampson, Lisa Hartling, Liana Urichuk, Sunita Vohra
OBJECTIVES: To summarize the methods of design, analysis, and meta-analysis used in N-of-1 trials. STUDY DESIGN AND SETTING: Electronic search for English language articles published from 1950 to 2013. N-of-1 trials were selected if they followed an ABAB design and if they assessed a health intervention for a medical condition. Elements of design, analysis, and meta-analysis were extracted. RESULTS: We included 100 reports representing 1,995 participants...
August 2016: Journal of Clinical Epidemiology
Fabrizio Stasolla, Viviana Perilli, Rita Damiani, Vincenza Albano
OBJECTIVES: To extend the use of assistive technology (AT) for promoting a new adaptive response and to reduce hand mouthing, by three boys with fragile X syndrome. To monitor the effects of the intervention program on the positive mood. To carry out a three month follow-up phases. To conduct a social validation assessment involving 30 parents of children who presented multiple disabilities as raters. METHODS: The study was implemented according to an ABAB experimental design, where A represented baseline phases (technology available but inactive) and B represented intervention phases (the technology ensured 7 s of positive stimulation)...
April 7, 2016: Developmental Neurorehabilitation
Chia-Jui Chang, Man-Ling Chang, Ching-Hsiang Shih
This study continues the research on using an air mouse as a physical activity detector. An air mouse is embedded with a MEMS (Micro Electro Mechanical Systems) gyro sensor, which can measure even the slightest movement in the air. The air mouse was strapped to one of each participant's calves to detect walking activity. This study was conducted to evaluate whether four students with intellectual disability who were overweight and disliked exercising could be motivated to engage in walking actively by linking the target response with preferred stimulation...
August 2016: Research in Developmental Disabilities
Bryant C Silbaugh, Terry S Falcomata
PURPOSE: To evaluate the effects of a lag schedule of positive reinforcement on variability in food consumed by a boy with autism and food selectivity. METHODS: Using single-subject experimental design methodology, an ABAB design was employed. During lag 0 (condition A), high-preferred toys were delivered contingent on consumption of any food. During lag 1 (condition B), high-preferred toys were delivered contingent on consumption of different foods within session...
March 28, 2016: Developmental Neurorehabilitation
Shaaban K Mohamed, Joel T Mague, Mehmet Akkurt, Alaa F Mohamed, Mustafa R Albayati
The asymmetric unit of the title compound, C22H21N3O2, consists of two independent mol-ecules (A and B) having differing conformations. The differences mainly concern the dihedral angles which the hy-droxy-phenyl and di-methyl-phenyl rings subtend to the central phenyl-ene ring, these being 30.16 (6) and 58.60 (6)° in mol-ecule A and 13.42 (7) and 60.31 (7)° in B. With the exception of the dimethyphenyl substituent, the conformations of the rest of each mol-ecule are largely determined by intra-molecular O-H⋯N and N-H⋯O hydrogen bonds...
December 1, 2015: Acta Crystallographica. Section E, Crystallographic Communications
Jung-Yu Tsao, Jia-Dong Tsai, Chen-I Yang
Three new azide-bridged coordination polymers, [M(N3)(tzbp)]n (M = Cu, 1·Cu; Mn, 2·Mn; Co, 3·Co), were successfully synthesized by the introduction of a bifunctional tetrazolate/2,2′-bipyridine ligand, 6-(1H-tetrazol-5-yl)-2,2′-bipyridine (Htzbp), from the in situ [2 + 3] cycloaddition of 6-cyano-2,2′-bipyridine in the presence of an excess of sodium azide under hydrothermal conditions. Compounds 1·Cu−3·Co were characterized by X-ray crystallography, IR spectroscopy, thermogravimetry, and elemental analysis...
February 28, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
Guoxia Jin, Jia Wang, Qidi Wu, Zheng Han, Jianping Ma
Two new Zn(II) coordination polymers, namely, catena-poly[[dibromidozinc(II)]-μ-[3,6-bis(pyridin-4-yl)phenanthrene-9,10-dione-κ(2)N:N']], [ZnBr2(C24H14N2O2)]n, (1), and poly[[bromido[μ3-10-hydroxy-3,6-bis(pyridin-4-yl)phenanthren-9-olato-κ(3)N:N':O(9)]zinc(II)] hemihydrate], {[ZnBr(C24H15N2O2)]·0.5H2O}n, (2), have been synthesized through hydrothermal reaction of ZnBr2 and a 60° angular phenanthrenedione-based linker, i.e. 3,6-bis(pyridin-4-yl)phenanthrene-9,10-dione, in different solvent systems. Single-crystal analysis reveals that polymer (1) features one-dimensional zigzag chains connected by weak C-H...
December 1, 2015: Acta Crystallographica. Section C, Structural Chemistry
Howard P Wills, Benjamin A Mason
Technological innovations offer promise for improving intervention implementation in secondary, inclusive classrooms. A withdrawal design was employed with two high school students in order to assess the effectiveness of a technologically-delivered, self-monitoring intervention in improving on-task behavior in a science classroom. Two students ages 14 and 15 with diagnoses of specific learning disability (student 1) and attention deficit hyperactivity disorder (ADHD: student 2) were selected by case manager referral due to difficulties with on-task behavior despite long-term administration of psychostimulant medication...
December 1, 2014: Journal of Behavioral Education
Giulio E Lancioni, Nirbhay N Singh, Mark F O'Reilly, Jeff Sigafoos, Fiora D'Amico, Francesca Buonocunto, Jorge Navarro, Crocifissa Lanzilotti, Piero Fiore, Marisa Megna, Sabino Damiani
BACKGROUND: Post-coma persons in a minimally conscious state (MCS) and with extensive motor impairment and lack of speech tend to be passive and isolated. OBJECTIVE: This study aimed to (a) further assess a technology-aided approach for fostering MCS participants' responding and stimulation control and (b) carry out a social validation check about the approach. METHODS: Eight MCS participants were exposed to the aforementioned approach according to an ABAB design...
2015: NeuroRehabilitation
Jian-Shen Feng, Zhong-Sheng Cai, Min Ren, Song-Song Bao, Li-Min Zheng
By incorporating flexible bis(imidazol-1-ylmethyl)benzene (bix) co-ligands, four new racemic cobalt phosphonates with formulae Co3(3-ppap)2(1,4-bix)2(H2O)4·4H2O (1), Co3(3-ppap)2(1,3-bix)2(H2O)4·5H2O (2), Co3(3-ppap)2(1,2-bix)2(H2O)4·4H2O (3) and Co3(ppa)2(1,2-bix)2·4H2O (4) are isolated, where 3-ppapH3 represents 3-phenyl-3-((phosphonomethyl)amino)propanoic acid and ppaH3 is 2-phenyl-2-(phosphonomethylamino)acetic acid. Compounds 1-3 crystallize in the monoclinic space group P21/c and show two-dimensional structures in which the Co3(3-ppap)2 chains are bridged by 1,4-bix, 1,3-bix and 1,2-bix ligands in trans-modes, respectively...
November 7, 2015: Dalton Transactions: An International Journal of Inorganic Chemistry
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