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https://www.readbyqxmd.com/read/28817699/cooperative-dynamics-of-neighborhood-economic-status-in-cities
#1
Anand Sahasranaman, Henrik Jeldtoft Jensen
We significantly extend our earlier variant of the Schelling model, incorporating a neighborhood Potential function as well as an agent wealth gain function to study the long term evolution of the economic status of neighborhoods in cities. We find that the long term patterns of neighborhood relative economic status (RES) simulated by this model reasonably replicate the empirically observed patterns from American cities. Specifically, we find that larger fractions of rich and poor neighborhoods tend to, on average, retain status for longer than lower- and upper-middle wealth neighborhoods...
2017: PloS One
https://www.readbyqxmd.com/read/28817427/what-predicts-ongoing-nonsuicidal-self-injury-a-comparison-between-persistent-and-ceased-self-injury-in-emerging-adults
#2
Glenn Kiekens, Penelope Hasking, Ronny Bruffaerts, Laurence Claes, Imke Baetens, Mark Boyes, Philippe Mortier, Koen Demyttenaere, Janis Whitlock
Although nonsuicidal self-injury (NSSI) peaks in adolescence, a significant proportion of young people continue to self-injure into emerging adulthood. Yet, little is known about factors prospectively associated with persistent NSSI. Using data from a 3-year longitudinal study (n = 1466), we compared 51 emerging adults (67.3% female; average age, 20.0 years) who continued to self-injure from adolescence and 50 emerging adults (83.7% female; average age, 20.3 years) who had ceased NSSI, on a broad range of psychosocial factors...
August 16, 2017: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/28817325/hiv-preexposure-prophylaxis-and-condomless-sex-disentangling-personal-values-from-public-health-priorities
#3
Sarah K Calabrese, Kristen Underhill, Kenneth H Mayer
Daily HIV preexposure prophylaxis (PrEP) is an effective form of HIV protection that remains unknown and inaccessible for many people in the United States despite receiving federal approval over five years ago. PrEP is supported by the public health community, but forgoing condoms while taking PrEP has proven controversial; this controversy may be contributing to the lag in PrEP uptake. We argue that limiting PrEP access based on anticipated or actual sexual behavior contradicts the goals of public health research and practice and is not scientifically justified...
August 17, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28816000/investigating-facial-phenotype-in-autism-spectrum-conditions-the-importance-of-a-hypothesis-driven-approach
#4
Maryam Boutrus, Murray T Maybery, Gail A Alvares, Diana Weiting Tan, Kandice J Varcin, Andrew J O Whitehouse
Atypical facial characteristics have been observed in many disorders associated with developmental disability. While autism spectrum conditions (ASC) have not previously been thought to be associated with a distinct facial phenotype, an emerging research literature is casting doubt on this assumption. The identification of differences in the facial phenotype of individuals with ASC may contribute to efforts to promote early identification of the condition and help elucidate etiological pathways. With the aim of identifying facial phenotypes associated with ASC, this commentary evaluated facial features purported to distinguish ASC from typical development...
August 17, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28815744/identifying-prebariatric-subtypes-based-on-temperament-traits-emotion-dysregulation-and-disinhibited-eating-a-latent-profile-analysis
#5
Lisa Schäfer, Claudia Hübner, Thomas Carus, Beate Herbig, Florian Seyfried, Stefan Kaiser, Tatjana Schütz, Arne Dietrich, Anja Hilbert
OBJECTIVE: The efficacy of bariatric surgery has been proven; however, a subset of patients fails to achieve expected long-term weight loss postoperatively. As differences in surgery outcome may be influenced by heterogeneous psychological profiles in prebariatric patients, previous subtyping models differentiated patients based on temperament traits. The objective of this study was to expand these models by additionally considering emotion dysregulation and disinhibited eating behaviors for subtyping, as these factors were associated with maladaptive eating behaviors and poor postbariatric weight loss outcome...
August 16, 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/28815589/tight-temporal-coupling-between-synaptic-rewiring-of-olfactory-glomeruli-and-the-emergence-of-odor-guided-behavior-in-xenopus-tadpoles
#6
Beatrice Terni, Paolo Pacciolla, Helena Masanas, Pau Gorostiza, Artur Llobet
Olfactory sensory neurons (OSNs) are chemoreceptors that establish excitatory synapses within glomeruli of the olfactory bulb. OSNs undergo continuous turnover throughout life, causing the constant replacement of their synaptic contacts. Using Xenopus tadpoles as an experimental system to investigate rewiring of glomerular connectivity, we show that novel OSN synapses can transfer information immediately after formation, mediating an olfactory-guided behavior. Tadpoles recover the ability to detect amino acids four days after bilateral olfactory nerve transection...
August 17, 2017: Journal of Comparative Neurology
https://www.readbyqxmd.com/read/28815512/p2y2-receptor-functions-in-cancer-a-perspective-in-the-context-of-colorectal-cancer
#7
Fernand-Pierre Gendron, Morgane Placet, Guillaume Arguin
Purinergic signaling has recently emerged as a network of signaling molecules, enzymes and receptors that coordinates the action and behavior of cancerous cells. Extracellular adenosine 5' triphosphate activates a plethora of P2 nucleotide receptors that can putatively modulate cancer cell proliferation, survival and dissemination. In this context, the G protein-coupled P2Y2 receptor was identified as one of the entities coordinating the cellular and molecular events that characterize cancerous cells. In this chapter, we will look at the contribution of the P2Y2 receptor in cancer outcomes and use this information to demonstrate that the P2Y2 receptor represents a drug target of interest in the setting of colorectal cancer, for which the role and function of this receptor is poorly defined...
August 17, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28815427/learning-about-love-a-meta-analytic-study-of-individually-oriented-relationship-education-programs-for-adolescents-and-emerging-adults
#8
David M Simpson, Nathan D Leonhardt, Alan J Hawkins
Despite recent policy initiatives and substantial federal funding of individually oriented relationship education programs for youth, there have been no meta-analytic reviews of this growing field. This meta-analytic study draws on 17 control-group studies and 13 one-group/pre-post studies to evaluate the effectiveness of relationship education programs on adolescents' and emerging adults' relationship knowledge, attitudes, and skills. Overall, control-group studies produced a medium effect (d = .36); one-group/pre-post studies also produced a medium effect (d = ...
August 16, 2017: Journal of Youth and Adolescence
https://www.readbyqxmd.com/read/28815358/friendship-attachment-style-moderates-the-effect-of-adolescent-exposure-to-violence-on-emerging-adult-depression-and-anxiety-trajectories
#9
Justin E Heinze, Stephanie H Cook, Erica P Wood, Anne C Dumadag, Marc A Zimmerman
Exposure to violence during adolescence is associated with increased risk behaviors and mental health problems in adulthood. Friendship attachment during adolescence may, however, mitigate the negative effects of exposure to violence on trajectories of depression and anxiety in young adulthood. In this study, we used growth curve modeling to examine associations between exposure to violence and mental health outcomes, followed by multi-group analyses with friendship attachment as the moderator. The sample was drawn from a longitudinal study (12 waves; 1994-2012) of 676 (54% female) urban high school students...
August 16, 2017: Journal of Youth and Adolescence
https://www.readbyqxmd.com/read/28814608/parasite-altered-feeding-behavior-in-insects-integrating-functional-and-mechanistic-research-frontiers
#10
REVIEW
Melissa A Bernardo, Michael S Singer
Research on parasite-altered feeding behavior in insects is contributing to an emerging literature that considers possible adaptive consequences of altered feeding behavior for the host or the parasite. Several recent ecoimmunological studies show that insects can adaptively alter their foraging behavior in response to parasitism. Another body of recent work shows that infection by parasites can change the behavior of insect hosts to benefit the parasite; manipulations of host feeding behavior may be part of this phenomenon...
August 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28814121/perceptions-of-iranian-female-drug-users-toward-hiv-testing-a-qualitative-content-analysis
#11
Mansoureh Jamshidimanesh, Effat Merghati Khoie, Seyed Abbas Mousavi, Afsaneh Keramat, Mohammad Hassan Emamian
BACKGROUND: Drug-dependent women are the vulnerable population deprived of access to health services and also have particular relevance to public health perspective because they are important bridge population for driving HIV/AIDS epidemic. This qualitative study aimed to explore the perception of drug-dependent women regarding HIV testing. METHODS: In this qualitative study, we approached 23 women with substance use disorders in 2 of the selected drop-in centers in the south Tehran...
January 1, 2017: Journal of the International Association of Providers of AIDS Care
https://www.readbyqxmd.com/read/28814110/engaging-hiv-positive-clients-in-care-acceptability-and-mechanisms-of-action-of-a-peer-navigation-program-in-south-africa
#12
Wayne T Steward, Jeri Sumitani, Mary E Moran, Mary-Jane Ratlhagana, Jessica L Morris, Lebogang Isidoro, Jennifer M Gilvydis, John Tumbo, Jessica Grignon, Scott Barnhart, Sheri A Lippman
Antiretroviral therapy (ART) could curtail the HIV epidemic, but its impact is diminished by low uptake. We developed a peer navigation program to enhance engagement in HIV care, ART adherence, and behavioral prevention. In preparation for a randomized controlled trial, the program was piloted over four months at two primary health clinics in South Africa's North West Province. Newly diagnosed, HIV-positive clients met regularly with navigators to address barriers to care, adherence, and prevention. To assess program acceptability and feasibility and characterize the mechanisms of action, we surveyed 25 clients who completed navigation services and conducted interviews with 10 clients, four navigators, and five clinic providers...
August 16, 2017: AIDS Care
https://www.readbyqxmd.com/read/28814080/drug-delivery-from-a-multi-faceted-ultrasound-contrast-agent-influence-of-shell-composition
#13
Lauren J Jablonowski, Nutte T Teraphongphom, Margaret A Wheatley
Many cancer therapy regimes still rely heavily on the systemic administration of toxic chemotherapeutic agents. Ultrasound contrast agents consisting of microbubbles (MB) have emerged as a drug delivery vehicle to overcome the challenges associated with systemic chemotherapy. Here we describe the development of non-immunogenic, functionalized polylactic acid (PLA) MB for use in targeted cancer therapy. Our previous studies have shown that the balance between acoustic behavior and improved immune avoidance was scalable and successful to different degrees with two different PEGylation methods, and was best achieved using incorporation of PEG-PLA at 5 wt% and for a LipidPEG at 1 wt%...
August 16, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28813478/development-and-validation-of-a-multi-dimensional-measure-of-intellectual-humility
#14
Mark Alfano, Kathryn Iurino, Paul Stey, Brian Robinson, Markus Christen, Feng Yu, Daniel Lapsley
This paper presents five studies on the development and validation of a scale of intellectual humility. This scale captures cognitive, affective, behavioral, and motivational components of the construct that have been identified by various philosophers in their conceptual analyses of intellectual humility. We find that intellectual humility has four core dimensions: Open-mindedness (versus Arrogance), Intellectual Modesty (versus Vanity), Corrigibility (versus Fragility), and Engagement (versus Boredom). These dimensions display adequate self-informant agreement, and adequate convergent, divergent, and discriminant validity...
2017: PloS One
https://www.readbyqxmd.com/read/28813362/people-have-feelings-exercise-psychology-in-paradigmatic-transition
#15
REVIEW
Panteleimon Ekkekakis
Exercise psychology has yet to produce intervention methods capable of increasing exercise and physical activity behavior in a sustainable manner. This situation is forcing a critical reevaluation of current conceptual models, especially the assumption that behavioral decisions are driven solely by the rational evaluation of information. Like other behavioral sciences, exercise psychology is transitioning to dual-process models that acknowledge the importance of non-reflective processes. Emerging evidence suggests that the pleasure or displeasure experienced during exercise may influence subsequent physical activity...
August 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813350/anxiety-and-performance-perceptual-motor-behavior-in-high-pressure-contexts
#16
REVIEW
Arne Nieuwenhuys, Raôul Rd Oudejans
When the pressure is on and anxiety levels increase it is not easy to perform well. In search of mechanisms explaining the anxiety-performance relationship, we revisit the integrated model of anxiety and perceptual-motor performance (Nieuwenhuys and Oudejans, 2012) and provide a critical review of contemporary literature. While there is increasing evidence that changes in attentional control affect the execution of goal-directed action, based on our model and emerging evidence from different scientific disciplines, we argue for a more integrated, process-based approach...
August 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813283/stress-and-coping-in-couples-facing-infertility
#17
REVIEW
Lauri A Pasch, Kieran T Sullivan
Infertility presents an ideal setting for examining how stress impacts couple relationships. The effect of facing fertility problems on couple relationships is highly varied. Traditional stress and coping models are limited, because they do not account for partner interdependence. We propose a stress and coping in couples model which argues that couples whose approaches to managing infertility (i.e., their appraisal and coping efforts) are compatible will experience more positive communication, and be more likely to experience a strengthening of their relationship; whereas couples with incompatible approaches will be more likely to experience negative communication and a weakening of their relationship...
February 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813088/cognitive-dysfunction-in-corticobasal-degeneration
#18
Laís Machado de Oliveira, Igor Barcellos, Hélio A G Teive, Renato Puppi Munhoz
Corticobasal degeneration (CBD) was originally described as a distinct clinicopathological entity in 1967. Since then, different phenotypic presentations have emerged as possible manifestations of CBD histopathological findings. In addition, pathophysiological findings and the molecular basis have been delineated and several aspects of its cognitive manifestations have been clarified. Thus, not only the spectrum of what is currently designated as CBD has expanded, but overlap with other degenerative and even secondary disorders has made clinical diagnostic certainty even more challenging in the absence of specific and readily-available markers...
August 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28812402/older-persons-experiences-of-a-home-based-exercise-program-with-behavioral-change-support
#19
Marina Arkkukangas, Annelie J Sundler, Anne Söderlund, Staffan Eriksson, Ann-Christin Johansson
BACKGROUND: It is a challenge to promote exercise among older persons. Knowledge is needed regarding the maintenance of exercise aiming at preventing falls and promoting health and well-being in older persons. PURPOSE: This descriptive study used a qualitative inductive approach to describe older persons' experiences of a fall-preventive, home-based exercise program with support for behavioral change. METHODS: Semi-structured interviews were conducted with 12 elderly persons aged 75 years or older, and a qualitative content analysis was performed...
August 16, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28812274/oxytocin-and-anxiety-disorders
#20
Michael G Gottschalk, Katharina Domschke
In the present chapter, we review the literature focusing on oxytocin (OT)-centered research in anxiety spectrum conditions, comprising separation anxiety disorder, specific phobias, social anxiety disorder (SAD), panic disorder, generalized anxiety disorder, and anxiety-related endophenotypes (e.g., trust behavior, behavioral inhibition, neuroticism, and state/trait anxiety). OT receptor gene (OXTR) polymorphisms have been implicated in gene-environment interactions with attachment style and childhood maltreatment and to influence clinical outcomes, including SAD intensity and limbic responsiveness...
August 16, 2017: Current Topics in Behavioral Neurosciences
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