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https://www.readbyqxmd.com/read/29793174/effect-of-ca-2-ion-concentration-on-adsorption-of-poly-carboxylate-ether-based-pce-superplasticizer-on-mica
#1
Bo Wu, Byong-Wa Chun, Le Gu, Tonya L Kuhl
HYPOTHESIS: Poly(carboxylate ether)-based (PCE) superplasticizers consist of a carboxylic acid backbone and grafted poly(ethylene glycol) (PEG) side chains. Ca2+ ion bridging mechanism is commonly purported to control PCE's adsorption on negatively charged cement particle surfaces in cement suspension, thus PCE was expected to adsorb on negatively charged surfaces in synthetic pore solutions via Ca2+ /COO- interactions. EXPERIMENTS: Adsorption behaviors of a commercial PCE on negatively charged mica were studied in aqueous electrolyte solutions by a surface forces apparatus...
May 9, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29793156/mechanical-properties-of-the-human-scalp-in-tension
#2
Lisa Falland-Cheung, Mario Scholze, Pamela F Lozano, Benjamin Ondruschka, Darryl C Tong, Paul A Brunton, J Neil Waddell, Niels Hammer
Mechanical properties of the human scalp have not been investigated to a great extent with limited information available. The purpose of this study was to provide new baseline material data for human scalp tissue of various ages, which can be applied to experimental and constitutive models, such as in the area of impact biomechanics. This study used specimens from the left and right temporal, fronto-parietal and occipital regions of the human scalp. It investigated the tensile behavior of scalp tissue using tissues harvested from unfixed, fresh cadavers...
May 17, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29792878/deoxyelephantopin-ameliorates-lipopolysaccharides-lps-induced-memory-impairments-in-rats-evidence-for-its-anti-neuroinflammatory-properties
#3
Shathiswaran N Andy, Vijayapandi Pandy, Zazali Alias, Habsah Abdul Kadir
AIM: Neuroinflammation is a critical pathogenic mechanism of most neurodegenerative disorders especially, Alzheimer's disease (AD). Lipopolysaccharides (LPS) are known to induce neuroinflammation which is evident from significant upsurge of pro-inflammatory mediators in in vitro BV-2 microglial cells and in vivo animal models. In present study, we investigated anti-neuroinflammatory properties of deoxyelephantopin (DET) isolated from Elephantopus scaber in LPS-induced neuroinflammatory rat model...
May 21, 2018: Life Sciences
https://www.readbyqxmd.com/read/29792726/i-like-them%C3%A2-will-they-like-me-evidence-for-the-role-of-the-ventrolateral-prefrontal-cortex-during-mismatched-social-appraisals-in-anxious-youth
#4
Ashley R Smith, Eric E Nelson, Brent I Rappaport, Daniel S Pine, Ellen Leibenluft, Johanna M Jarcho
OBJECTIVE: Socially anxious adolescents report distress during social decision-making, wherein their favorable view of peers directly conflicts with their expectation to be viewed negatively by peers; a phenomenon we refer to as "mismatch bias." The present study utilizes a novel paradigm with dynamic social stimuli to explore the correlates of mismatch biases in anxious and healthy youth. METHOD: The behavioral and neural correlates of mismatch biases were assessed in healthy (N = 17) and anxious (N = 14) youth during functional MRI...
May 24, 2018: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/29792582/advancing-child-sexual-abuse-prevention-in-schools-an-exploration-of-the-effectiveness-of-the-enough-online-training-program-for-k-12-teachers
#5
Melinda Gushwa, Jetta Bernier, David Robinson
Child sexual abuse (CSA) in schools and educator misconduct represents a threat to the safety and well-being of our children. The Enough! Preventing Child Sexual Abuse in My School program is a 1-hour online training course developed to address the problem of sexual misconduct and CSA in K-12 education via the use of two avatars/teachers who are navigating CSA and misconduct in their schools. One hundred and thirty-four teachers from three school districts participated in a study to examine the effectiveness of the program in terms of knowledge awareness, including prevalence rates, types of CSA behaviors, impact of CSA on children, signs and symptoms, reporting responsibilities and responses to suspected abuse...
May 24, 2018: Journal of Child Sexual Abuse
https://www.readbyqxmd.com/read/29792504/measurement-invariance-of-tgmd-3-in-children-with-and-without-mental-and-behavioral-disorders
#6
Daniele Magistro, Giovanni Piumatti, Fabio Carlevaro, Lauren B Sherar, Dale W Esliger, Giulia Bardaglio, Francesca Magno, Massimiliano Zecca, Giovanni Musella
This study evaluated whether the Test of Gross Motor Development 3 (TGMD-3) is a reliable tool to compare children with and without mental and behavioral disorders across gross motor skill domains. A total of 1,075 children (aged 3-11 years), 98 with mental and behavioral disorders and 977 without (typically developing), were included in the analyses. The TGMD-3 evaluates fundamental gross motor skills of children across two domains: locomotor skills and ball skills. Two independent testers simultaneously observed children's performances (agreement over 95%)...
May 24, 2018: Psychological Assessment
https://www.readbyqxmd.com/read/29792487/ethnic-racial-typicality-and-its-relation-to-ethnic-identity-and-psychological-functioning
#7
Lauren L Mitchell, Ummul-Kiram Kathawalla, Alex A Ajayi, Jillian Fish, Sarah C Nelson, Lovey H M Peissig, Moin Syed
OBJECTIVES: Ethnic identity development is considered a central task of adolescence and emerging adulthood for ethnic minority individuals. Although the process of developing a coherent ethnic identity has received attention from researchers, there has been little work done to elucidate the content of ethnic identity. This study uses an inductive mixed-methods approach to address 1 aspect of ethnic identity content: typicality, or the degree of perceived similarity individuals feel to their ethnic-racial group...
May 24, 2018: Cultural Diversity & Ethnic Minority Psychology
https://www.readbyqxmd.com/read/29792485/telephone-assisted-parent-mediated-cbt-for-rural-latino-youth-with-anxiety-a-feasibility-trial
#8
Denise A Chavira, Cristina Bustos, Maritza Garcia, Francisco Reinosa Segovia, Afshan Baig, Bernardo Ng, Alvaro Camacho
OBJECTIVE: In this study, we tailor a child anxiety cognitive-behavior therapy (CBT) program to fit the needs of rural Latino/a Spanish-speaking families and examine the feasibility, acceptability, tolerability, and safety of this intervention using 2 modes of service delivery. METHOD: Children (n = 31; age 8-13) with anxiety disorders were recruited from primary care settings and randomized to 1 of 2 modes of parent-mediated CBT bibliotherapy: (1) telephone-delivered, therapist-assisted bibliotherapy (TTB; n = 15), and (2) a more minimal contact, self-directed, bibliotherapy condition (SB; n = 16)...
May 24, 2018: Cultural Diversity & Ethnic Minority Psychology
https://www.readbyqxmd.com/read/29792469/unpacking-team-process-dynamics-and-emergent-phenomena-challenges-conceptual-advances-and-innovative-methods
#9
Steve W J Kozlowski, Georgia T Chao
Psychologists have studied small-group and team effectiveness for decades, and although there has been considerable progress, there remain significant challenges. Meta-analyses and systematic research have provided solid evidence for core team cognitive, motivational, affective, and behavioral processes that contribute to team effectiveness and empirical support for interventions that enhance team processes (e.g., team design, composition, training, and leadership); there has been substantial evidence for a science of team effectiveness...
May 2018: American Psychologist
https://www.readbyqxmd.com/read/29792459/teamwork-in-healthcare-key-discoveries-enabling-safer-high-quality-care
#10
Michael A Rosen, Deborah DiazGranados, Aaron S Dietz, Lauren E Benishek, David Thompson, Peter J Pronovost, Sallie J Weaver
Few industries match the scale of health care. In the United States alone, an estimated 85% of the population has at least 1 health care encounter annually and at least one quarter of these people experience 4 to 9 encounters annually. A single visit requires collaboration among a multidisciplinary group of clinicians, administrative staff, patients, and their loved ones. Multiple visits often occur across different clinicians working in different organizations. Ineffective care coordination and the underlying suboptimal teamwork processes are a public health issue...
May 2018: American Psychologist
https://www.readbyqxmd.com/read/29792412/facet-dependent-kinetics-and-energetics-of-hematite-for-solar-water-oxidation-reactions
#11
Wei Li, Ke R Yang, Xiahui Yao, Yumin He, Qi Dong, Gary W Brudvig, Victor S Batista, Dunwei Wang
The performance of a photoelectrochemical (PEC) system is highly dependent on the charge separation, transport and transfer characteristics at the photoelectrode|electrolyte interface. Of the factors that influence the charge behaviors, the crystalline facets of the semiconductor in contact with the electrolyte play an important role but has been poorly studied previously. Here, we present a study aimed at understanding how the different facets of hematite affect the charge separation and transfer behaviors in a solar water oxidation reaction...
May 24, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29792256/uncaring-nurses-mobilizing-power-knowledge-difference-and-resistance-to-explain-workplace-violence-in-academia
#12
Renee Berquist, Isabelle St-Pierre, Dave Holmes
BACKGROUND AND PURPOSE: Violence among nurses and in nursing academia is a significant issue, with attention increasingly focused on damage resulting from psychological violence, such as bullying, harassment, aggression, and incivility. Each workplace's interpretation of violence will impact individual behavior within the organization. Organizational and environmental factors can contribute to violent behaviors becoming normalized in the workplace. When violent behaviors go unconstrained, they become imbedded within the workplace culture...
May 1, 2018: Research and Theory for Nursing Practice
https://www.readbyqxmd.com/read/29792242/testing-a-stepped-care-model-for-binge-eating-disorder-a-two-step-randomized-controlled-trial
#13
Giorgio A Tasca, Diana Koszycki, Agostino Brugnera, Livia Chyurlia, Nicole Hammond, Kylie Francis, Kerri Ritchie, Iryna Ivanova, Genevieve Proulx, Brian Wilson, Julie Beaulac, Hany Bissada, Erin Beasley, Nancy Mcquaid, Renee Grenon, Benjamin Fortin-Langelier, Angelo Compare, Louise Balfour
BACKGROUND: A stepped care approach involves patients first receiving low-intensity treatment followed by higher intensity treatment. This two-step randomized controlled trial investigated the efficacy of a sequential stepped care approach for the psychological treatment of binge-eating disorder (BED). METHODS: In the first step, all participants with BED (n = 135) received unguided self-help (USH) based on a cognitive-behavioral therapy model. In the second step, participants who remained in the trial were randomized either to 16 weeks of group psychodynamic-interpersonal psychotherapy (GPIP) (n = 39) or to a no-treatment control condition (n = 46)...
May 24, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29792241/efficacy-of-digital-cbt-for-insomnia-to-reduce-depression-across-demographic-groups-a-randomized-trial
#14
Philip Cheng, Annemarie I Luik, Cynthia Fellman-Couture, Edward Peterson, Christine L M Joseph, Gabriel Tallent, Kieulinh Michelle Tran, Brian K Ahmedani, Timothy Roehrs, Thomas Roth, Christopher L Drake
BACKGROUND: Insomnia and depression are highly comorbid and mutually exacerbate clinical trajectories and outcomes. Cognitive behavioral therapy for insomnia (CBT-I) effectively reduces both insomnia and depression severity, and can be delivered digitally. This could substantially increase the accessibility to CBT-I, which could reduce the health disparities related to insomnia; however, the efficacy of digital CBT-I (dCBT-I) across a range of demographic groups has not yet been adequately examined...
May 24, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29792067/application-of-machine-learning-to-predict-dietary-lapses-during-weight-loss
#15
Stephanie P Goldstein, Fengqing Zhang, John G Thomas, Meghan L Butryn, James D Herbert, Evan M Forman
BACKGROUND: Individuals who adhere to dietary guidelines provided during weight loss interventions tend to be more successful with weight control. Any deviation from dietary guidelines can be referred to as a "lapse." There is a growing body of research showing that lapses are predictable using a variety of physiological, environmental, and psychological indicators. With recent technological advancements, it may be possible to assess these triggers and predict dietary lapses in real time...
May 1, 2018: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/29792052/randomized-clinical-trial-of-computerized-and-clinician-delivered-cbt-in-comparison-with-standard-outpatient-treatment-for-substance-use-disorders-primary-within-treatment-and-follow-up-outcomes
#16
Brian D Kiluk, Charla Nich, Matthew B Buck, Kathleen A Devore, Tami L Frankforter, Donna M LaPaglia, Srinivas B Muvvala, Kathleen M Carroll
OBJECTIVE: Previous trials have demonstrated the efficacy and durability of computer-based cognitive-behavioral therapy (CBT4CBT) as an add-on to standard outpatient care in a range of treatment-seeking populations. In this study, the authors evaluated the efficacy and safety of CBT4CBT as a virtual stand-alone treatment, delivered with minimal clinical monitoring, and clinician-delivered cognitive-behavioral therapy (CBT) compared with treatment as usual in a heterogeneous sample of treatment-seeking outpatients with substance use disorders...
May 24, 2018: American Journal of Psychiatry
https://www.readbyqxmd.com/read/29791866/17-%C3%AE-estradiol-exacerbates-methamphetamine-induced-anxiety-like-behavior-in-female-mice
#17
A S Rauhut, M A Curran-Rauhut
The present experiment investigated the effect of 17 β-estradiol (E2 ) on anxiety-like behavior following methamphetamine administration in female, Swiss-Webster mice. Mice underwent bilateral ovariectomy (OVX) followed by a subcutaneous implantation of a Silastic capsule containing either sesame oil (OVX + Oil) or E2 (36 μg/ml; OVX + E2 ). One week later, mice were placed in an open-field chamber for an 8-hour session. During the first 3 hours of the session, mice were permitted to run in the absence of any drug (baseline)...
May 20, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29791813/higher-lung-cancer-incidence-in-young-women-than-young-men-in-the-united-states
#18
Ahmedin Jemal, Kimberly D Miller, Jiemin Ma, Rebecca L Siegel, Stacey A Fedewa, Farhad Islami, Susan S Devesa, Michael J Thun
BACKGROUND: Previous studies showed a higher incidence of lung cancer among young women than among young men in the United States. Whether this pattern has continued in contemporary birth cohorts and, if so, whether it can be fully explained by sex differences in smoking behaviors are unknown. METHODS: We examined the nationwide population-based incidence of lung cancer according to sex, race or ethnic group, age group (30 to 34, 35 to 39, 40 to 44, 45 to 49, and 50 to 54 years), year of birth (1945 to 1980), and calendar period of diagnosis (1995-1999, 2000-2004, 2005-2009, and 2010-2014), and we calculated female-to-male incidence rate ratios...
May 24, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29791740/the-irie-classroom-toolbox-developing-a-violence-prevention-preschool-teacher-training-program-using-evidence-theory-and-practice
#19
Helen Baker-Henningham
In this paper, I describe the development of the Irie Classroom Toolbox, a school-based violence prevention, teacher training program for use with children aged 3-6 years. In-depth interviews were conducted with Jamaican preschool teachers, who had participated in a trial of a classroom behavior management program, at posttest (n = 35) and 5 years later (n = 20). An on-going process evaluation was also conducted. Teachers' preferred behavior management strategies and training methods were documented, and enablers and barriers to implementation were identified...
May 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29791585/protective-effect-and-mechanism-of-lactobacillus-on-cerebral-ischemia-reperfusion-injury-in-rats
#20
Shi Wanchao, Ma Chen, Su Zhiguo, Xie Futang, Shi Mengmeng
The present study was designed to investigate the protective effects and mechanism of inactivated lactobacillus (ILA) on cerebral ischemia reperfusion injury (CIRI) in rats. In this experiment, 30 male Sprague Dawley rats were randomly divided into control group, IRI groups, and ILA group. A middle cerebral artery occlusion and reperfusion model was prepared. The rats were killed after 24 hours of recovery of blood flow of cerebral ischemia resulting from 60-min occlusion. The cerebral infarction volume and neurological scores were assayed by staining and behavioral observation...
2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
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