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https://www.readbyqxmd.com/read/28437731/children-and-adolescents-facing-a-continuous-security-threat-aggressive-behavior-and-post-traumatic-stress-symptoms
#1
Orit Nuttman-Shwartz
There is extensive research evidence indicating that children and youth are the most vulnerable population for developing psychological symptoms relating to war and terror. Although studies have documented a wide range of detrimental emotional and behavioral effects of such exposure, much less is known about the effects of exposure to a continuous security threat for children and adolescents. Against this background, the current article examined the implications of continuous exposure to missile attacks among 1096 children and adolescents enrolled in public schools near the Israeli border with Gaza...
April 21, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28437698/coupled-elasticity-in-soft-solid-foams
#2
F Gorlier, Y Khidas, O Pitois
Elasticity of soft materials can be greatly influenced by the presence of air bubbles. Such a capillary effect is expected for a wide range of materials, from polymer gels to concentrated emulsions and colloidal suspensions. Whereas experimental results and theory exist for describing the elasto-capillary behavior of bubbly materials (i.e. with moderate gas volume fractions), foamy systems still require a dedicated study in order to increase our understanding of elasticity in aerated materials over the full range of gas volume fractions...
April 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28437600/how-are-behavioral-theories-used-in-interventions-to-promote-physical-activity-in-rheumatoid-arthritis-a-systematic-review
#3
Ingrid Demmelmaier, Maura D Iversen
OBJECTIVES: To identify the use of behavioral theories (BTs) in physical activity (PA) interventions in populations with RA. METHODS: This review includes articles published in English between 01-01-1980 and 08-12-2015 in MEDLINE, Cochrane and CINAHL identified by a strategic literature search. Included studies were: published in international peer-reviewed journals; mentioned "theory", evaluated a PA intervention for adults with RA; and had ≥ 1 PA variable as the outcome...
April 24, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28436287/positive-affect-and-physical-activity-testing-effects-on-goal-setting-activation-prioritisation-and-attainment
#4
David S Cameron, Emma J Bertenshaw, Paschal Sheeran
OBJECTIVE: The present research tested whether incidental positive affect promotes pursuit of physical activity goals. Four key features of goal pursuit were examined - setting physical activity goals (Study 1), goal activation (Study 2), and goal prioritization and goal attainment (Study 3). DESIGN: Participants (Ns = 80, 81, and 59, in Studies 1-3, respectively) were randomized to positive affect (joy, hope) or neutral affect (control) conditions in each study...
April 23, 2017: Psychology & Health
https://www.readbyqxmd.com/read/28435966/water-structuring-above-solutes-with-planar-hydrophobic-surfaces
#5
Udo Schnupf, John W Brady
Many important biological solutes possess not only polar and hydrogen bonding functionalities, but also weakly-hydrating, or hydrophobic, surfaces. Theories of the hydration of such surfaces predict that their solvent interactions will change from a wetting type interaction to a dewetting regime as a function of the solute size, with a gradual transition in behavior taking place around characteristic lengths of ∼1 nm. Aggregations of non-polar species over this size range will undergo a transition from being dominated by entropy to being dominated by enthalpy...
April 24, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28434864/sensorimotor-representations-in-cerebellar-granule-cells-in-larval-zebrafish-are-dense-spatially-organized-and-non-temporally-patterned
#6
Laura D Knogler, Daniil A Markov, Elena I Dragomir, Vilim Štih, Ruben Portugues
A fundamental question in neurobiology is how animals integrate external sensory information from their environment with self-generated motor and sensory signals in order to guide motor behavior and adaptation. The cerebellum is a vertebrate hindbrain region where all of these signals converge and that has been implicated in the acquisition, coordination, and calibration of motor activity. Theories of cerebellar function postulate that granule cells encode a variety of sensorimotor signals in the cerebellar input layer...
April 14, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28433832/the-theoretical-study-of-excited-state-intramolecular-proton-transfer-of-2-5-bis-benzoxazol-2-yl-thiophene-3-4-diol
#7
Rui-Fang Lan, Yun-Fan Yang, Yan-Zhen Ma, Yong-Qing Li
The symmetrical structures 2,5-bis(benzoxazol-2-yl)thiophene-3,4-diol (BBTD) can take shape two intramolecular hydrogen bonds in chloroform. In order to research the molecular dynamic behavior of BBTD upon photo-induced process, we utilize density functional theory (DFT) and time-dependent density functional theory (TDDFT) to complete theoretical calculation. Through the comparison of bond length, bond angle, IR spectra, and frontier molecular orbitals between ground state (S0) and first excited state (S1), it clearly indicates that photoexcitation have slightly influence for intensity of hydrogen bond...
April 18, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28433774/the-role-of-compensatory-health-beliefs-in-eating-behavior-change-a-mixed-method-study
#8
Melanie A Amrein, Pamela Rackow, Jennifer Inauen, Theda Radtke, Urte Scholz
Compensatory Health Beliefs (CHBs), defined as beliefs that an unhealthy behavior can be compensated for by engaging in another healthy behavior, are assumed to hinder health behavior change. The aim of the present study was to investigate the role of CHBs for two distinct eating behaviors (increased fruit and vegetable consumption and eating fewer unhealthy snacks) with a mixed method approach. Participants (N = 232, mean age = 27.3 years, 76.3% women) were randomly assigned to a fruit and vegetable or an unhealthy snack condition...
April 19, 2017: Appetite
https://www.readbyqxmd.com/read/28433143/transcrystallization-of-polypropylene-in-the-presence-of-polyester-cellulose-nanocrystal-composite-fibers
#9
Jing Huang, Chunjiang Xu, Defeng Wu, Qiaolian Lv
Pristine cellulose nanocrystal (CNC) and acetylated one (aCNC) were used as the modifier to change the surface properties of poly(trimethylene terephthalate) (PTT) fibers for the transcrystallization study of polypropylene (PP). The results reveal that all three kinds of fibers, including the neat PTT, PTT/CNC and PTT/aCNC ones can induce PP transcrystallization. But the PTT/aCNC fiber-filled PP system shows the most remarkable transcrystallization behavior because of the highest nucleation density of PTT/aCNC fiber...
July 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28433022/electrolyte-solutions-at-curved-electrodes-ii-microscopic-approach
#10
Andreas Reindl, Markus Bier, S Dietrich
Density functional theory is used to describe electrolyte solutions in contact with electrodes of planar or spherical shape. For the electrolyte solutions, we consider the so-called civilized model, in which all species present are treated on equal footing. This allows us to discuss the features of the electric double layer in terms of the differential capacitance. The model provides insight into the microscopic structure of the electric double layer, which goes beyond the mesoscopic approach studied in Paper I...
April 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28432814/do-males-choose-their-mates-in-the-lekking-moth-achroia-grisella-influence-of-female-body-mass-and-male-reproductive-status-on-male-mate-choice
#11
Marlène Goubault, Rebecca Burlaud
Lekking males aggregate to attract females and contribute solely to egg fertilization, without any further parental care. Evolutionary theory therefore predicts them to be non-choosy towards their mates, because any lost mating opportunities would outweigh the benefits associated with such preferences. Nevertheless, due to time costs, the production of energetically costly sexual displays, and potential sperm limitation, the mating effort of lekking males is often considerable. These factors, combined with the fact that many females of varying quality are likely to visit leks, could favor the evolution of male mate preferences...
April 22, 2017: Insect Science
https://www.readbyqxmd.com/read/28432773/transition-of-the-functional-brain-network-related-to-increasing-cognitive-demands
#12
Karolina Finc, Kamil Bonna, Monika Lewandowska, Tomasz Wolak, Jan Nikadon, Joanna Dreszer, Włodzisław Duch, Simone Kühn
Network neuroscience provides tools that can easily be used to verify main assumptions of the global workspace theory (GWT), such as the existence of highly segregated information processing during effortless tasks performance, engagement of multiple distributed networks during effortful tasks and the critical role of long-range connections in workspace formation. A number of studies support the assumptions of GWT by showing the reorganization of the whole-brain functional network during cognitive task performance; however, the involvement of specific large scale networks in the formation of workspace is still not well-understood...
April 22, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28432482/the-sensible-health-care-professional-a-care-ethical-perspective-on-the-role-of-caregivers-in-emotionally-turbulent-practices
#13
Vivianne Baur, Inge van Nistelrooij, Linus Vanlaere
This article discusses the challenging context that health care professionals are confronted with, and the impact of this context on their emotional experiences. Care ethics considers emotions as a valuable source of knowledge for good care. Thinking with care ethical theory and looking through a care ethical lens at a practical case example, the authors discern reflective questions that (1) shed light on a care ethical approach toward the role of emotions in care practices, and (2) may be used by practitioners and facilitators for care ethical reflection on similar cases, in the particular and concrete context where issues around emotional experiences arise...
April 21, 2017: Medicine, Health Care, and Philosophy
https://www.readbyqxmd.com/read/28431947/a-bout-analysis-of-operant-response-disruption
#14
REVIEW
Ryan J Brackney, Timothy H Cheung, Federico Sanabria
Operant behavior appears to be organized in bouts of responses, whose parameters are differentially sensitive to various manipulations. This study investigated potential differential effects of three forms of operant response disruption-extinction (EXT), non-contingent reinforcement (NCR), and prefeeding (PRE)-on response bouts. In Experiment 1, Wistar Kyoto rats (WKY) were trained on a tandem variable-time (VT) 120s fixed-ratio (FR) 5 schedule of reinforcement; after stability was established, their responding was disrupted for three sessions with one of the three disrupters (EXT, NCR, or PRE)...
April 18, 2017: Behavioural Processes
https://www.readbyqxmd.com/read/28431192/a-personal-connection-promoting-positive-attitudes-towards-teaching-and-learning
#15
Heidi L Lujan, Stephen E DiCarlo
Students' attitudes towards teaching and learning must be addressed with the same seriousness and effort as we address content. Establishing a personal connection and addressing our students' basic psychological needs will produce positive attitudes towards teaching and learning and develop life-long learners. It will also promote constructive student-teacher relationships that have a profound influence on our students' approach towards school. To begin this process, consider the major tenets of the Self-Determination Theory...
April 21, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28431080/systematic-review-of-measures-used-in-pictorial-cigarette-pack-warning-experiments
#16
Diane B Francis, Marissa G Hall, Seth M Noar, Kurt M Ribisl, Noel T Brewer
Background.: We sought to describe characteristics and psychometric properties of measures used in pictorial cigarette pack warning experiments, and provide recommendations for future studies. Methods.: Our systematic review identified 68 pictorial cigarette pack warning experiments conducted between 2000 and 2016 in 22 countries. Two independent coders coded all studies on study features, including sample characteristics, theoretical framework, and constructs assessed...
April 18, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28430505/excitation-gap-scaling-near-quantum-critical-three-dimensional-antiferromagnets
#17
M Lohöfer, S Wessel
By means of large-scale quantum Monte Carlo simulations, we examine the quantum critical scaling of the magnetic excitation gap (the triplon gap) in a three-dimensional dimerized quantum antiferromagnet, the bicubic lattice, and identify characteristic multiplicative logarithmic scaling corrections atop the leading mean-field behavior. These findings are in accord with field-theoretical predictions that are based on an effective description of the quantum critical system in terms of an asymptotically free field theory, which exhibits a logarithmic decay of the renormalized interaction strength upon approaching the quantum critical point...
April 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28430490/diffused-vorticity-and-moment-of-inertia-of-a-spin-orbit-coupled-bose-einstein-condensate
#18
Sandro Stringari
By developing the hydrodynamic theory of spinor superfluids, we calculate the moment of inertia of a harmonically trapped Bose-Einstein condensate with spin-orbit coupling. We show that the velocity field associated with the rotation of the fluid exhibits diffused vorticity, in contrast to the irrotational behavior characterizing a superfluid. Both Raman-induced and Rashba spin-orbit couplings are considered. In the first case the moment of inertia takes the rigid value at the transition between the plane wave and the single minimum phase, while in the latter case the rigid value is achieved in the limit of isotropic Rashba coupling...
April 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28430410/modelling-and-simulation-of-piezoelectrically-driven-self-charging-lithium-ion-batteries
#19
Zhiguo Wang
Self-charging lithium ion batteries (SCLIBs) that hybridize mechanical energy harvesting and storage processes into one process can be fabricated using a piezoelectric polyvinylidene fluoride (PVDF) film as a separator in lithium ion batteries. In this paper, the deintercalation reaction at LiCoO2 and intercalation reaction at graphite were studied under an internal piezoelectric field using density functional theory. It was found that the internal piezoelectric field applied on the anode can increase intercalation energies and diffusion behavior, at the same time, the internal piezoelectric field facilitates the deintercalation reaction at the cathode...
April 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28430110/viscosity-of-a-sheared-correlated-near-critical-model-fluid-in-confinement
#20
Christian Rohwer, Andrea Gambassi, Matthias Kruger
Second-order phase transitions are characterized by a divergence of the spatial correlation length of the order parameter fluctuations. For confined systems, this is known to lead to remarkable equilibrium physical phenomena, including finite-size effects and critical Casimir forces. We explore here some non-equilibrium aspects of these effects in the stationary state resulting from the action of external forces: by analyzing a model of a correlated fluid under shear, spatially confined by two parallel plates, we study the resulting viscosity within the setting of (Gaussian) Landau-Ginzburg theory...
April 21, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
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