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Applied behavior analysys, behavior analysys

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https://www.readbyqxmd.com/read/28820488/phase-behaviour-and-miscibility-studies-of-collagen-silk-fibroin-macromolecular-system-in-dilute-solutions-and-solid-state
#1
Ima Ghaeli, Mariana A de Moraes, Marisa M Beppu, Katarzyna Lewandowska, Alina Sionkowska, Frederico Ferreira-da-Silva, Maria P Ferraz, Fernando J Monteiro
Miscibility is an important issue in biopolymer blends for analysis of the behavior of polymer pairs through the detection of phase separation and improvement of the mechanical and physical properties of the blend. This study presents the formulation of a stable and one-phase mixture of collagen and regenerated silk fibroin (RSF), with the highest miscibility ratio between these two macromolecules, through inducing electrostatic interactions, using salt ions. For this aim, a ternary phase diagram was experimentally built for the mixtures, based on observations of phase behavior of blend solutions with various ratios...
August 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28817332/individual-versus-community-level-risk-compensation-following-preexposure-prophylaxis-of-hiv
#2
Martin Holt, Dean A Murphy
We analyzed the concept of risk compensation and how it has been applied in HIV prevention, paying particular attention to the strategy of HIV preexposure prophylaxis (PrEP). In risk compensation, reduced perceptions of risk after the introduction of a preventative intervention lead to more frequent risk-taking behavior. Such a change may undermine the intervention's protective benefits. We found that many studies purporting to investigate risk compensation do not assess or report changes in perceptions of risk, instead relying on behavioral measures...
August 17, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28814540/autism-spectrum-disorder-in-fragile-x-syndrome-cooccurring-conditions-and-current-treatment
#3
Walter E Kaufmann, Sharon A Kidd, Howard F Andrews, Dejan B Budimirovic, Amy Esler, Barbara Haas-Givler, Tracy Stackhouse, Catharine Riley, Georgina Peacock, Stephanie L Sherman, W Ted Brown, Elizabeth Berry-Kravis
BACKGROUND AND OBJECTIVE: Individuals with fragile X syndrome (FXS) are frequently codiagnosed with autism spectrum disorder (ASD). Most of our current knowledge about ASD in FXS comes from family surveys and small studies. The objective of this study was to examine the impact of the ASD diagnosis in a large clinic-based FXS population to better inform the care of people with FXS. METHODS: The study employed a data set populated by data from individuals with FXS seen at specialty clinics across the country...
June 2017: Pediatrics
https://www.readbyqxmd.com/read/28813555/analysis-of-item-level-bias-in-the-bayley-iii-language-subscales-the-validity-and-utility-of-standardized-language-assessment-in-a-multilingual-setting
#4
Shaun K Y Goh, Elaine K H Tham, Iliana Magiati, Litwee Sim, Shamini Sanmugam, Anqi Qiu, Mary L Daniel, Birit F P Broekman, Anne Rifkin-Graboi
Purpose: The purpose of this study was to improve standardized language assessments among bilingual toddlers by investigating and removing the effects of bias due to unfamiliarity with cultural norms or a distributed language system. Method: The Expressive and Receptive Bayley-III language scales were adapted for use in a multilingual country (Singapore). Differential item functioning (DIF) was applied to data from 459 two-year-olds without atypical language development...
August 15, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28813467/meat-consumption-reduction-in-italian-regions-health-co-benefits-and-decreases-in-ghg-emissions
#5
Sara Farchi, Manuela De Sario, Enrica Lapucci, Marina Davoli, Paola Michelozzi
INTRODUCTION: Animal agriculture has exponentially grown in recent decades in response to the rise in global demand for meat, even in countries like Italy that traditionally eat a Mediterranean, plant-based diet. Globalization related dietary changes are contributing to the epidemic of non-communicable diseases and to the global climate crisis, and are associated with huge carbon and water footprints. The objective of the study is to assess inequalities in health impacts and in attributable greenhouse gases-GHG emissions in Italy by hypothesizing different scenarios of reduction in red and processed meat consumption towards healthier consumption patterns more compliant with the recommendations of the Mediterranean food pyramid...
2017: PloS One
https://www.readbyqxmd.com/read/28809816/modeling-the-non-equilibrium-process-of-the-chemical-adsorption-of-ammonia-on-gan-0001-reconstructed-surfaces-based-on-steepest-entropy-ascent-quantum-thermodynamics
#6
Akira Kusaba, Guanchen Li, Michael R von Spakovsky, Yoshihiro Kangawa, Koichi Kakimoto
Clearly understanding elementary growth processes that depend on surface reconstruction is essential to controlling vapor-phase epitaxy more precisely. In this study, ammonia chemical adsorption on GaN(0001) reconstructed surfaces under metalorganic vapor phase epitaxy (MOVPE) conditions (3Ga-H and Nad-H + Ga-H on a 2 × 2 unit cell) is investigated using steepest-entropy-ascent quantum thermodynamics (SEAQT). SEAQT is a thermodynamic-ensemble based, first-principles framework that can predict the behavior of non-equilibrium processes, even those far from equilibrium where the state evolution is a combination of reversible and irreversible dynamics...
August 15, 2017: Materials
https://www.readbyqxmd.com/read/28807525/experimental-and-computational-analysis-of-micromotions-of-an-uncemented-femoral-knee-implant-using-elastic-and-plastic-bone-material-models
#7
Sanaz Berahmani, Dennis Janssen, Nico Verdonschot
It is essential to calculate micromotions at the bone-implant interface of an uncemented femoral total knee replacement (TKR) using a reliable computational model. In the current study, experimental measurements of micromotions were compared with predicted micromotions by Finite Element Analysis (FEA) using two bone material models: linear elastic and post-yield material behavior, while an actual range of interference fit was simulated. The primary aim was to investigate whether a plasticity model is essential in order to calculate realistic micromotions...
July 29, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28807109/psoriasis-and-suicidality-a-systematic-review-and-meta-analysis
#8
Sanminder Singh, Catherine Taylor, Heather Kornmehl, April W Armstrong
BACKGROUND: Psoriasis is associated with psychiatric comorbidities; however, the relationship between psoriasis and suicidality is not well understood. OBJECTIVE: To perform a systematic review and meta-analysis that elucidates the relationship between psoriasis and suicidality. METHODS: Applying the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, we systematically searched the PubMed, EMBASE, PsycINFO, and Cochrane databases...
September 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28806716/efficient-hardware-implementation-of-the-subthalamic-nucleus-external-globus-pallidus-oscillation-system-and-its-dynamics-investigation
#9
Shuangming Yang, Xile Wei, Jiang Wang, Bin Deng, Chen Liu, Haitao Yu, Huiyan Li
Modeling and implementation of the nonlinear neural system with physiologically plausible dynamic behaviors are considerably meaningful in the field of computational neuroscience. This study introduces a novel hardware platform to investigate the dynamical behaviors within the nonlinear subthalamic nucleus-external globus pallidus system. In order to reduce the implementation complexities, a hardware-oriented conductance-based subthalamic nucleus (STN) model is presented, which can reproduce accurately the dynamical characteristics of biological conductance-based STN cells...
July 26, 2017: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28806305/dimensions-of-posttraumatic-growth-in-patients-with-cancer-a-mixed-method-study
#10
Mehdi Heidarzadeh, Maryam Rassouli, Jeannine M Brant, Farahnaz Mohammadi-Shahbolaghi, Hamid Alavi-Majd
BACKGROUND: Posttraumatic growth (PTG) refers to positive outcomes after exposure to stressful events. Previous studies suggest cross-cultural differences in the nature and amount of PTG. OBJECTIVE: The aim of this study was to explore different dimensions of PTG in Iranian patients with cancer. METHODS: A mixed method study with convergent parallel design was applied to clarify and determine dimensions of PTG. Using the Posttraumatic Growth Inventory (PTGI), confirmatory factor analysis was used to quantitatively identify dimensions of PTG in 402 patients with cancer...
August 12, 2017: Cancer Nursing
https://www.readbyqxmd.com/read/28805988/are-behaviors-at-one-alternative-in-concurrent-schedules-independent-of-contingencies-at-the-other-alternative
#11
James S MacDonall
Some have reported changing the schedule at one alternative of a concurrent schedule changed responding at the other alternative (Catania, 1969), which seems odd because no contingencies were changed there. When concurrent schedules are programmed using two schedules, one associated with each alternative that operate continuously, changing the schedule at one alternative also changes the switch schedule at the other alternative. Thus, changes in responding at the constant alternative could be due to the change in the switch schedule...
August 14, 2017: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/28804710/application-of-survival-analysis-and-multistate-modeling-to-understand-animal-behavior-examples-from-guide-dogs
#12
Lucy Asher, Naomi D Harvey, Martin Green, Gary C W England
Epidemiology is the study of patterns of health-related states or events in populations. Statistical models developed for epidemiology could be usefully applied to behavioral states or events. The aim of this study is to present the application of epidemiological statistics to understand animal behavior where discrete outcomes are of interest, using data from guide dogs to illustrate. Specifically, survival analysis and multistate modeling are applied to data on guide dogs comparing dogs that completed training and qualified as a guide dog, to those that were withdrawn from the training program...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28803514/investigation-sensitivity-analysis-and-multi-objective-optimization-of-effective-parameters-on-temperature-and-force-in-robotic-drilling-cortical-bone
#13
Vahid Tahmasbi, Majid Ghoreishi, Mojtaba Zolfaghari
The bone drilling process is very prominent in orthopedic surgeries and in the repair of bone fractures. It is also very common in dentistry and bone sampling operations. Due to the complexity of bone and the sensitivity of the process, bone drilling is one of the most important and sensitive processes in biomedical engineering. Orthopedic surgeries can be improved using robotic systems and mechatronic tools. The most crucial problem during drilling is an unwanted increase in process temperature (higher than 47 °C), which causes thermal osteonecrosis or cell death and local burning of the bone tissue...
August 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28801951/modeling-ion-recombination-in-liquid-ionization-chambers-improvement-and-analysis-of-the-two-dose-rate-method
#14
Jonas Andersson, Heikki Tölli
PURPOSE: The use of liquid ionization chambers can provide useful information to endeavors with radiation dosimetry for highly modulated beams. Liquid ionization chambers may be particularly suitable for computed tomography applications where conventional ionization chambers do not present a high enough sensitivity for the spatial resolution required to characterize common X-ray beams. Due to the sensitivity, which leads to high charge densities, liquid ionization chambers can suffer from large recombination losses leading to degradation in signal to dose rate linearity...
August 12, 2017: Medical Physics
https://www.readbyqxmd.com/read/28801470/litigation-provides-clues-to-ongoing-challenges-in-implementing-insurance-parity
#15
Kelsey N Berry, Haiden A Huskamp, Howard H Goldman, Lainie Rutkow, Colleen L Barry
Over the past twenty-five years, thirty-seven states and the US Congress have passed mental health and substance use disorder (MH/SUD) parity laws to secure nondiscriminatory insurance coverage for MH/SUD services in the private health insurance market and through certain public insurance programs. However, in the intervening years, litigation has been brought by numerous parties alleging violations of insurance parity. We examine the critical issues underlying these legal challenges as a framework for understanding the areas in which parity enforcement is lacking, as well as ongoing areas of ambiguity in the interpretation of these laws...
August 11, 2017: Journal of Health Politics, Policy and Law
https://www.readbyqxmd.com/read/28800506/ni-oh-2-ngqds-based-electrochemiluminescence-immunosensor-for-prostate-specific-antigen-detection-by-coupling-resonance-energy-transfer-with-fe3o4-mno2-composites
#16
Wenjuan Zhu, Malik Saddam Khan, Wei Cao, Xu Sun, Hongmin Ma, Yong Zhang, Qin Wei
An efficient quenching electrochemiluminescence (ECL) immunosensor based on ECL resonance energy transfer (ECL-RET) was studied for sensitive analysis of prostate specific antigen (PSA). In this protocol, nitrogen-doped graphene quantum dots (NGQDs) which could produce excellent ECL emission, were loaded onto Ni(OH)2 with the three-dimensional (3D) hierarchical and stacked lamellar structure. Taking advantages of high conductivity and large specific surface area of Ni(OH)2, the better electrochemical and ECL behavior of Ni(OH)2/NGQDs were presented...
August 4, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28799690/fluid-driven-interfacial-instabilities-and-turbulence-in-bacterial-biofilms
#17
Stefania Fabbri, Jian Li, Robert P Howlin, Amir Rmaile, Bart Gottenbos, Marko De Jager, E Michelle Starke, Marcelo Aspiras, Marilyn T Ward, Nick G Cogan, Paul Stoodley
Biofilms are thin layers of bacteria embedded within a slime matrix that live on surfaces. They are ubiquitous in nature and responsible for many medical and dental infections, industrial fouling and are also evident in ancient fossils. A biofilm structure is shaped by growth, detachment and response to mechanical forces acting on them. The main contribution to biofilm versatility in response to physical forces is the matrix that provides a platform for the bacteria to grow. The interaction between biofilm structure and hydrodynamics remains a fundamental question concerning biofilm dynamics...
August 11, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28797217/maternal-perspectives-of-well-siblings-adjustment-to-family-life-with-a-technology-dependent-child
#18
Valerie Boebel Toly, Julia E Blanchette, Shannon Sikorski, Carol M Musil, Arwa Al-Hamed
Technology-dependent (TD) children require complex care and are dependent on medical technology. Approximately 75% of families, in the United States, who are caring for a TD child, also care for a well child. Well siblings are likely to be affected by the experience of living with a TD sibling as the process of family normalization is described as a family affair. The experiences of well siblings are not well described. The purpose of this qualitative analysis was to describe the experiences of well siblings who are living in a family with a TD child...
August 2017: Journal of Family Nursing
https://www.readbyqxmd.com/read/28796797/chaotic-itinerancy-within-the-coupled-dynamics-between-a-physical-body-and-neural-oscillator-networks
#19
Jihoon Park, Hiroki Mori, Yuji Okuyama, Minoru Asada
Chaotic itinerancy is a phenomenon in which the state of a nonlinear dynamical system spontaneously explores and attracts certain states in a state space. From this perspective, the diverse behavior of animals and its spontaneous transitions lead to a complex coupled dynamical system, including a physical body and a brain. Herein, a series of simulations using different types of non-linear oscillator networks (i.e., regular, small-world, scale-free, random) with a musculoskeletal model (i.e., a snake-like robot) as a physical body are conducted to understand how the chaotic itinerancy of bodily behavior emerges from the coupled dynamics between the body and the brain...
2017: PloS One
https://www.readbyqxmd.com/read/28795080/electron-lattice-energy-relaxation-in-laser-excited-thin-film-au-insulator-heterostructures-studied-by-ultrafast-mev-electron-diffraction
#20
K Sokolowski-Tinten, X Shen, Q Zheng, T Chase, R Coffee, M Jerman, R K Li, M Ligges, I Makasyuk, M Mo, A H Reid, B Rethfeld, T Vecchione, S P Weathersby, H A Dürr, X J Wang
We apply time-resolved MeV electron diffraction to study the electron-lattice energy relaxation in thin film Au-insulator heterostructures. Through precise measurements of the transient Debye-Waller-factor, the mean-square atomic displacement is directly determined, which allows to quantitatively follow the temporal evolution of the lattice temperature after short pulse laser excitation. Data obtained over an extended range of laser fluences reveal an increased relaxation rate when the film thickness is reduced or the Au-film is capped with an additional insulator top-layer...
September 2017: Structural Dynamics (Melville, N.Y.)
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