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Behavior theory

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https://www.readbyqxmd.com/read/28319662/optimizing-charge-injection-across-transition-metal-dichalcogenide-heterojunctions-theory-and-experiment
#1
Jie Guan, Hsun-Jen Chuang, Zhixian Zhou, David Tomanek
In search of an improved strategy to form low-resistance contacts to semiconducting transition metal dichalcogenides, we combine ab initio density functional electronic structure calculations for an NbSe2/WSe2 interface with quantum transport measurements of the corresponding heterojunction between a few-layer WSe2 semiconductor and a metallic NbSe2 layer. Our theoretical results suggest that, besides a rigid band shift associated with charge transfer, the presence of NbSe2 does not modify the electronic structure of WSe2...
March 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28318904/dual-memory-neural-networks-for-modeling-cognitive-activities-of-humans-via-wearable-sensors
#2
Sang-Woo Lee, Chung-Yeon Lee, Dong-Hyun Kwak, Jung-Woo Ha, Jeonghee Kim, Byoung-Tak Zhang
Wearable devices, such as smart glasses and watches, allow for continuous recording of everyday life in a real world over an extended period of time or lifelong. This possibility helps better understand the cognitive behavior of humans in real life as well as build human-aware intelligent agents for practical purposes. However, modeling the human cognitive activity from wearable-sensor data stream is challenging because learning new information often results in loss of previously acquired information, causing a problem known as catastrophic forgetting...
February 20, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28318001/contrasting-diffusion-behaviors-of-o-and-f-atoms-on-graphene-and-within-bilayer-graphene
#3
Seho Yi, Jin-Ho Choi, Hyun-Jung Kim, Chul Hong Park, Jun-Hyung Cho
Chemical modification of graphene with adatoms is of importance for nanoelectronics applications. Based on first-principles density-functional theory calculations including van der Waals interactions, we present a comparative study of the diffusion characteristics of oxygen (O) and fluorine (F) atoms both on graphene and between the layers of bilayer graphene. We find that the calculated diffusion barrier for the O atom increases slightly from 0.81 eV on graphene to 0.85 eV within bilayer graphene, while that for the F atom largely decreases from 0...
March 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28317384/exploring-possible-predictors-and-moderators-of-an-executive-function-training-for-children-with-an-autism-spectrum-disorder
#4
Marieke de Vries, Mathilde Ge Verdam, Pier Jm Prins, Ben A Schmand, Hilde M Geurts
Previously, a total of 121 children with an autism spectrum disorder (ASD) performed an adaptive working memory (WM)-training, an adaptive flexibility-training, or a non-adaptive control (mock)-training. Despite overall improvement, there were minor differences between the adaptive and mock-training conditions. Moreover, dropout was relatively high (26%). In the current study we explored potential predicting and moderating factors to clarify these findings. The effects of intelligence, autism traits, WM, flexibility, reward sensitivity and Theory of Mind on dropout, improvement during training, and improvement in everyday executive functioning (EF), ASD-like behavior, and Quality of Life (QoL) were studied...
March 1, 2017: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/28317120/the-efficacy-of-teachers-responses-to-incidents-of-bullying-and-victimization-the-mediational-role-of-moral-disengagement-for-bullying
#5
Kristel Campaert, Annalaura Nocentini, Ersilia Menesini
Teachers respond differently to bullying and victimization. Socio-cognitive and moral domain theory suggest that students process teachers' behavior cognitively and that teachers' responses to incidents of bullying and victimization could affect students' level of moral disengagement. We examined the mediating effect of students' moral disengagement between types of teachers' responses to situations of bullying and victimization and individual bullying using multilevel mediation modelling. Participants were 609 students (50% boys, age M = 11...
March 20, 2017: Aggressive Behavior
https://www.readbyqxmd.com/read/28317037/the-role-of-familismo-and-acculturation-as-moderators-of-the-association-between-family-conflict-and-substance-abuse-on-latino-adult-males
#6
Roberto Lopez-Tamayo, Alexa Seda, Leonard A Jason
The significant research gap on Latino adults who completed substance abuse treatment (SAT) impacts the provision of substance use prevention and treatment for this population. Given the need for culturally-appropriate SAT for Latinos, research that examines the role of cultural constructs and acculturation in relation to substance use behavior is warranted. The purpose of the present study is to test, based on the social control theory, a multiple moderation model using the PROCESS macro(1) to examine the moderating effect of Familismo on the association between history of family conflict and years of substance abuse on Latino males who completed SAT at different levels of acculturation (i...
August 2016: Public Health (Fairfax)
https://www.readbyqxmd.com/read/28316907/sleep-apps-and-behavioral-constructs-a-content-analysis
#7
Diana S Grigsby-Toussaint, Jong Cheol Shin, Dayanna M Reeves, Ariana Beattie, Evan Auguste, Girardin Jean-Louis
Although sleep apps are among the most popular commercially available health apps, little is known about how well these apps are grounded in behavioral theory. Three-hundred and sixty-nine apps were initially identified using the term "sleep" from the Google play store and Apple iTunes in September 2015. The final sample consisted of 35 apps that met the following inclusion criteria: 1) Stand-alone functionality; 2) Sleep tracker or monitor apps ranked by 100 + users; 3) Sleep Alarm apps ranked by 1000 + users; and 4) English language...
June 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28315945/organization-of-the-reach-and-grasp-in-head-fixed-vs-freely-moving-mice-provides-support-for-multiple-motor-channel-theory-of-neocortical-organization
#8
Ian Q Whishaw, Jamshid Faraji, Jessica Kuntz, Behroo Mirza Agha, Mukt Patel, Gerlinde A S Metz, Majid H Mohajerani
Multiple motor channel (MMC) theory of neocortical organization proposes that complex movements, such as reaching for a food item to eat, are produced by the coordinated action of separate neural channels. For example, the human reach-to-grasp act is mediated by two visuo-parieto-motor cortex channels, one for the reach and one for the grasp. The present analysis asked whether there is a similar organization of reach-and-grasp movements in the mouse. The reach-to-eat movements of the same mice were examined from high-shutter speed, frame-by-frame video analysis in three tasks in which the mice obtained equivalent success scores: when freely-moving reaching for food pellets, when head-fixed reaching for food pellets, and when head-fixed reaching for pieces of pasta...
March 18, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28315944/bimanual-coordination-patterns-are-stabilized-under-monitoring-pressure
#9
John J Buchanan, Inchon Park, Jing Chen, David L Wright, Ranjana K Mehta
The influence of monitoring-pressure on the performance of anti-phase and in-phase bimanual coordination was examined. The two bimanual patterns were produced under no-monitoring and monitoring-pressure conditions at self-paced frequencies. Anti-phase coordination was always less stable than in-phase coordination, with or without monitoring. When performed under monitoring-pressure, the coordination patterns were performed with less variability in relative phase for both patterns across a range of self-paced movement frequencies compared to performance without monitoring...
March 18, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28315898/modifiable-risk-factors-and-interventions-for-childhood-obesity-prevention-within-the-first-1-000-days
#10
Anne M Dattilo
Worldwide, the prevalence of childhood obesity has increased, amounting to 42 million overweight or obese children, and there is increasing evidence that the origins are within the first 1,000 days: the period of conception through 2 years. Antecedents of early childhood obesity are multifactorial, and associations of varying strength have been documented for genetic/epigenetic, biologic, dietary, environmental, social, and behavioral influences. Modifiable factors in pregnancy and early infancy associated with childhood obesity include maternal overweight/obesity, maternal smoking, gestational weight gain, infant and young child feeding, caregiver responsive feeding practices, as well as sleep duration, and physical activity...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28306311/liouville-field-theory-and-log-correlated-random-energy-models
#11
Xiangyu Cao, Alberto Rosso, Raoul Santachiara, Pierre Le Doussal
An exact mapping is established between the c≥25 Liouville field theory (LFT) and the Gibbs measure statistics of a thermal particle in a 2D Gaussian free field plus a logarithmic confining potential. The probability distribution of the position of the minimum of the energy landscape is obtained exactly by combining the conformal bootstrap and one-step replica symmetry-breaking methods. Operator product expansions in the LFT allow us to unveil novel universal behaviors of the log-correlated random energy class...
March 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28306270/quasiparticle-approach-to-molecules-interacting-with-quantum-solvents
#12
Mikhail Lemeshko
Understanding the behavior of molecules interacting with superfluid helium represents a formidable challenge and, in general, requires approaches relying on large-scale numerical simulations. Here, we demonstrate that experimental data collected over the last 20 years provide evidence that molecules immersed in superfluid helium form recently predicted angulon quasiparticles [Phys. Rev. Lett. 114, 203001 (2015)PRLTAO0031-900710.1103/PhysRevLett.114.203001]. Most important, casting the many-body problem in terms of angulons amounts to a drastic simplification and yields effective molecular moments of inertia as straightforward analytic solutions of a simple microscopic Hamiltonian...
March 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28304261/self-care-motivation-among-patients-with-heart-failure-a-qualitative-study-based-on-orem-s-theory
#13
Ghasem Abotalebidariasari, Robabe Memarian, Zohreh Vanaki, Anoshirvan Kazemnejad, Nasim Naderi
BACKGROUND AND PURPOSE: Initiating and adhering to self-care activities necessitate self-care motivation. This study was undertaken in Iran to explore self-care motivation among patients with heart failure (HF). METHODS: This qualitative study was done in 2014 and 2015. Study participants were patients with HF and their family members who were purposively selected from Shaheed Rajaei Cardiovascular, Medical and Research Center, Tehran, Iran. The study data were collected from December 2014 to May 2015 by doing in-depth semistructured face-to-face interviews and were analyzed via the directed content analysis approach...
November 1, 2016: Research and Theory for Nursing Practice
https://www.readbyqxmd.com/read/28304174/diffusion-of-polymers-through-periodic-networks-of-lipid-based-nanochannels
#14
Reza Ghanbari, Salvatore Assenza, Abhijit Saha, Raffaele Mezzenga
We present an experimental investigation on the diffusion of unfolded polymers in the triply-periodic water-channel network of inverse bicontinuous cubic phases. Depending on the chain size, our results indicate the presence of two different dynamical regimes corresponding to Zimm and Rouse diffusion. We support our findings by scaling arguments based on a combination of blob and effective-medium theories, and suggest the presence of a third regime where dynamics is driven by reptation. Our experimental results also show an increasing behavior of the partition coefficient as a function of polymer molecular weight, indicative of a reduction of the conformational degrees of freedom induced by the confinement...
March 17, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28303932/tuning-coupling-behavior-of-stacked-heterostructures-based-on-mos2-ws2-and-wse2
#15
Fang Wang, Junyong Wang, Shuang Guo, Jinzhong Zhang, Zhigao Hu, Junhao Chu
The interlayer interaction of vertically stacked heterojunctions is very sensitive to the interlayer spacing, which will affect the coupling between the monolayers and allow band structure modulation. Here, with the aid of density functional theory (DFT) calculations, an interesting phenomenon is found that MoS2-WS2, MoS2-WSe2, and WS2-WSe2 heterostructures turn into direct-gap semiconductors from indirect-gap semiconductors with increasing the interlayer space. Moreover, the electronic structure changing process with interlayer spacing of MoS2-WS2, MoS2-WSe2, and WS2-WSe2 is different from each other...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303805/strong-coupling-theory-of-heavy-fermion-criticality-ii
#16
Peter Wölfle, Jörg Schmalian, Elihu Abrahams
We present a theory of the scaling behavior of the thermodynamic, transport and dynamical properties of a three-dimensional metal governed by d-dimensional fluctuations at a quantum critical point, where the electron quasiparticle effective mass diverges. We determine how the critical bosonic order parameter fluctuations are affected by the effective mass divergence. The coupled system of fermions and bosons is found to be governed by two stable fixed points: the conventional weak-coupling fixed point and a new strong-coupling fixed point, provided the boson-boson interaction is irrelevant...
April 2017: Reports on Progress in Physics
https://www.readbyqxmd.com/read/28303423/theory-of-mind-predominantly-associated-with-the-quality-not-quantity-of-pretend-play-in-children-with-autism-spectrum-disorder
#17
Shu-Kai Lin, Ching-Hong Tsai, Hsing-Jung Li, Chien-Yu Huang, Kuan-Lin Chen
This study aimed to clarify the relationships between theory of mind and pretend play in children with autism spectrum disorder, using refined assessments of theory of mind and pretend play while controlling for autistic behaviors and verbal comprehension. A total of 92 children with autism spectrum disorder aged 4-10 years were enrolled. In two visits, the children were assessed with the Theory of Mind Task Battery, the Child-Initiated Pretend Play Assessment, the Childhood Autism Rating Scale, and the Verbal Comprehension Index of the Wechsler Intelligence Scales, respectively, for their theory of mind, pretend play performance, autistic behaviors, and verbal comprehension...
March 16, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/28303111/episodic-future-thinking-about-the-ideal-self-induces-lower-discounting-leading-to-a-decreased-tendency-toward-cheating
#18
Wen-Hsiung Wu, Wen Cheng, Wen-Bin Chiou
Delay discounting refers to a pervasive tendency toward preferring smaller immediate gains over larger future gains. Recent empirical research has shown that episodic future thinking (EFT; i.e., projecting oneself into the future to pre-experience forthcoming events) can reduce the tendency toward discounting. A common tenet of psychological theories of crime is that delinquency results from focusing on short-term gains while failing to consider adequately the longer-term consequences of delinquent behavior...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28303100/a-neural-dynamic-architecture-for-reaching-and-grasping-integrates-perception-and-movement-generation-and-enables-on-line-updating
#19
Guido Knips, Stephan K U Zibner, Hendrik Reimann, Gregor Schöner
Reaching for objects and grasping them is a fundamental skill for any autonomous robot that interacts with its environment. Although this skill seems trivial to adults, who effortlessly pick up even objects they have never seen before, it is hard for other animals, for human infants, and for most autonomous robots. Any time during movement preparation and execution, human reaching movement are updated if the visual scene changes (with a delay of about 100 ms). The capability for online updating highlights how tightly perception, movement planning, and movement generation are integrated in humans...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/28302351/does-a-primary-health-clinic-for-formerly-incarcerated-women-increase-linkage-to-care
#20
Diane S Morse, John L Wilson, James M McMahon, Ann M Dozier, Anabel Quiroz, Catherine Cerulli
OBJECTIVE: This study examined a primary care-based program to address the health needs of women recently released from incarceration by facilitating access to primary medical, mental health, and substance use disorder (SUD) treatment. STUDY DESIGN: Peer community health workers recruited women released from incarceration within the past 9 months into the Women's Initiative Supporting Health Transitions Clinic (WISH-TC). Located within an urban academic medical center, WISH-TC uses cultural, gender, and trauma-specific strategies grounded in the self-determination theory of motivation...
March 13, 2017: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
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