Assessing Children's Relationships with Pet Dogs: A Multi-Method Approach.

Relationships with pet dogs are thought to provide substantial benefits for children, but the study of these relationships has been hindered by a lack of validated measures. Approaches to assessing the quality of children's pet dog relationships have tended to focus on positive relationship qualities and to rely on self-report questionnaires. The aim of this study was to develop and test multiple measures that could be used to assess both positive and negative features of children's relationships with pet dogs. In a sample of 115 children ages 9-14 years who were pet dog owners, we assessed six qualities of pet dog relationships: Affection, Nurturance of Pet, Emotional Support from Pet, Companionship, Friction with Pet, and Pets as Substitutes for People. All qualities were assessed with child questionnaires, parent questionnaires, and child daily reports of interactions with pets. We found substantial convergence in reports from different observers and across different measurement approaches. Principal components analyses and correlations suggested overlap for many of the positive qualities, which tended to be distinct from negative relationship qualities. The study provides new tools which could be used to test further how relationships with pets contribute to children's development.

Modelling of Elongational Flow of HDPE Melts by Hierarchical Multi-Mode Molecular Stress Function Model.

The transient elongational data set obtained by filament-stretching rheometry of four commercial high-density polyethylene (HDPE) melts with different molecular characteristics was reported by Morelly and Alvarez [Rheologica Acta 59, 797-807 (2020)]. We use the Hierarchical Multi-mode Molecular Stress Function (HMMSF) model of Narimissa and Wagner [Rheol. Acta 54, 779-791 (2015), and J. Rheology 60, 625-636 (2016)] for linear and long-chain branched (LCB) polymer melts to analyze the extensional rheological behavior of the four HDPEs with different polydispersity and long-chain branching content. Model predictions based solely on the linear-viscoelastic spectrum and a single nonlinear parameter, the dilution modulus GD for extensional flows reveals good agreement with elongational stress growth data. The relationship of dilution modulus GD to molecular characteristics (e.g., polydispersity index (PDI), long-chain branching index (LCBI), disengagement time τd) of the high-density polyethylene melts are presented in this paper. A new measure of the maximum strain hardening factor (MSHF) is proposed, which allows separation of the effects of orientation and chain stretching.

DNA methylation at an enhancer of the three prime repair exonuclease 2 gene (TREX2) is linked to gene expression and survival in laryngeal cancer.

BACKGROUND: Genetic aberrations in DNA repair genes are linked to cancer, but less is reported about epigenetic regulation of DNA repair and functional consequences. We investigated the intragenic methylation loss at the three prime repair exonuclease 2 (TREX2) locus in laryngeal (n = 256) and colorectal cancer cases (n = 95) and in pan-cancer data from The Cancer Genome Atlas (TCGA). RESULTS: Significant methylation loss at an intragenic site of TREX2 was a frequent trait in both patient cohorts (p = 0.016 and < 0.001, respectively) and in 15 out of 22 TCGA studies. Methylation loss correlated with immunohistochemically staining for TREX2 (p < 0.0001) in laryngeal tumors and improved overall survival of laryngeal cancer patients (p = 0.045). Chromatin immunoprecipitation, demethylation experiments, and reporter gene assays revealed that the region of methylation loss can function as a CCAAT/enhancer binding protein alpha (CEBPA)-responsive enhancer element regulating TREX2 expression. CONCLUSIONS: The data highlight a regulatory role of TREX2 DNA methylation for gene expression which might affect incidence and survival of laryngeal cancer. Altered TREX2 protein levels in tumors may affect drug-induced DNA damage repair and provide new tailored therapies.

The Peer Relationships of Those Who Have Experienced Adoption or Foster Care: A Meta-Analysis.

This meta-analytic review examines the presence and quality of close peer relationships for adoptees and individuals with foster care experience. Results indicate that adoptees show difficulty forming close peer relationships compared with biologically reared individuals, but they do not differ in the quality of these relationships. In contrast, those with foster care experience report lower quality peer relationships than biologically reared individuals. Additionally, this meta-analysis includes prevalence rates of close peer relationships that illustrate most adoptees and foster youth report having high-quality peer relationships. These findings have important implications for intervention and prevention efforts and offer directions for future research on peer relationships among adoptees and foster youth, but should be considered in light of the presence of some publication bias.

Dyadic invariance of the Adult Self-Report and Adult Behavior Checklist: Evidence from young adult romantic couples.

The current paper investigated the invariance of the behavior problem scales of two measures from the Achenbach System of Empirically Based Assessment, the Adult Self Report (ASR) and the Adult Behavior Checklist (ABCL), across members of young adult romantic couples. Data were derived from three studies examining romantic relationships in young adulthood (total N = 672). Using a series of confirmatory factor analysis models, we tested levels of invariance of the behavior problem subscales of the ASR/ABCL across self- and partner-reports. All behavior problem subscales demonstrated invariant factor structures across self- and partner-reports. However, only the attention problems, aggressive behavior, and rule-breaking subscales achieved full metric invariance for both men and women. The intrusiveness (for men) and somatic complaints (for women) subscales also met full metric invariance. The remaining subscales only met partial metric invariance for both men (withdrawn, anxious/depressed, somatic complaints) and women (withdrawn, anxious/depressed, intrusiveness). All subscales only met partial scalar invariance. The current study extends the literature on cross-informant assessments by moving beyond studies of mean differences or correlations between informant reports. Moreover, our findings indicate that understanding agreement between informants should include multiple levels of measurement, such as factor structure, factor loadings, and item means. We recommend careful consideration of these issues when using the ASR/ABCL in a cross-informant framework. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Positive parental engagement: Investigating the role of the mother-father relationship.

Promoting positive parental engagement (e.g., reading to the child, practicing nursery rhymes with the child, playing with the child) is beneficial for children. Previous research has largely been limited to only maternal reports and relatively affluent families. The current study longitudinally investigated spillover between positive experiences in the mother-father relationship and positive parental engagement using an ethnically and economically diverse sample of parents. Using data from the Fragile Families and Child Wellbeing Study (N = 3,780 mother-father dyads)-and guided by family systems theory-we tested a series of path analysis models. Positive relationship experiences predicted positive parental engagement over time (from child's birth-5 years of age) for both mothers and fathers. Furthermore, strength of associations between positive relationship experiences and positive parental engagement largely did not differ based on family structure, poverty, or race. These findings highlight the importance of investigating the mother-father relationship using a family systems framework to better understand positive parental engagement. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

Single-Gap Superconductivity and Dome of Superfluid Density in Nb-Doped SrTiO_{3}.

SrTiO_{3} exhibits a superconducting dome upon doping with Nb, with a maximum critical temperature T_{c}≈0.4 K. Using microwave stripline resonators at frequencies from 2 to 23 GHz and temperatures down to 0.02 K, we probe the low-energy optical response of superconducting SrTiO_{3} with a charge carrier concentration from 0.3 to 2.2×10^{20} cm^{-3}, covering the majority of the superconducting dome. We find single-gap electrodynamics even though several electronic bands are superconducting. This is explained by a single energy gap 2Δ due to gap homogenization over the Fermi surface consistent with the low level of defect scattering in Nb-doped SrTiO_{3}. Furthermore, we determine T_{c}, 2Δ, and the superfluid density as a function of charge carrier concentration, and all three quantities exhibit the characteristic dome shape.

Local adaptation in European populations affected the genetics of psychiatric disorders and behavioral traits.

BACKGROUND: Recent studies have used genome-wide data to investigate evolutionary mechanisms related to behavioral phenotypes, identifying widespread signals of positive selection. Here, we conducted a genome-wide investigation to study whether the molecular mechanisms involved in these traits were affected by local adaptation. METHODS: We performed a polygenic risk score analysis in a sample of 2455 individuals from 23 European populations with respect to variables related to geo-climate diversity, pathogen diversity, and language phonological complexity. The analysis was adjusted for the genetic diversity of European populations to ensure that the differences detected would reflect differences in environmental exposures. RESULTS: The top finding was related to the association between winter minimum temperature and schizophrenia. Additional significant geo-climate results were also observed with respect to bipolar disorder (sunny daylight), depressive symptoms (precipitation rate), major depressive disorder (precipitation rate), and subjective well-being (relative humidity). Beyond geo-climate variables, we also observed findings related to pathogen diversity and language phonological complexity: openness to experience was associated with protozoan diversity; conscientiousness and extraversion were associated with language consonants. CONCLUSIONS: We report that common variation associated with psychiatric disorders and behavioral traits was affected by processes related to local adaptation in European populations.

Pet Dogs: Does their presence influence preadolescents' emotional responses to a social stressor?

Despite interest in human-animal interaction, few studies have tested whether the presence of a dog facilitates children's emotional responding. Preadolescents (n = 99) were randomly assigned to complete the Trier Social Stress Test either with or without their pet dog. Children rated their positive and negative affect, and high frequency heart rate variability (HF-HRV) was assessed throughout the session. Children reported higher positive affect when they completed the task with their pet dog, although there were no differences for negative affect or HF-HRV. Children who had more physical contact with their dog at baseline reported higher positive affect. The findings suggest contact with pets is associated with enhanced positive affect.

Evaluations and Future Plans After Casual Sexual Experiences: Differences Across Partner Type.

Casual sexual relationships and experiences (CSREs) are common among emerging adults, and their diversity may contribute to variability in their associations with mental health and future romantic relationship development. The present research used multiple regression analyses to examine how CSRE type (casual dating, friends with benefits [FWB], or booty call/one-night stand) is associated with short-term outcomes of these experiences, including positive and negative evaluations, plans to start a romantic relationship with a CSRE partner, and general plans for future CSREs. College students and non-college-attending emerging adults (N = 192, 80% female, mean age = 22.09 years) reported on recent sexual encounters through daily diaries collected around an alcohol consumption holiday. Individuals with casual dating partners evaluated their experiences more positively and/or less negatively than individuals with booty calls/one-night stands; these associations were moderated by gender and sexual behavior type. Individuals with casual dating partners were more oriented toward pursuing a romantic relationship with their partners than individuals with FWB or booty calls/one-night stands. However, no association was found between CSRE type and plans for future CSREs in general. Results highlight the diversity of CSREs and suggest that casual dating may be more rewarding than FWB and booty calls/one-night stands, particularly for women.

Self-Control and Emotional and Verbal Aggression in Dating Relationships: A Dyadic Understanding.

Guided by the dynamic developmental systems perspective, this study extends past research by examining the association between self-control and emotional and verbal aggression (EVA) using a dyadic multi-method design. Guided by empirical research and the dynamic developmental systems perspective, we hypothesized that (a) there would be a negative association between one's own self-control and one's own perpetration of EVA and (b) there would also be a negative association between one's partner's self-control and one's own perpetration of EVA. One hundred twenty heterosexual dating couples (ages 18-25 years) provided data on self-control (Grasmick et al.'s Low Self-Control Scale; reverse scored for ease of interpretation), self-reported perpetration of EVA (Emotional and Verbal Abuse subscale of the Conflict in Adolescent Dating Relationships Inventory), and observationally assessed perpetration of EVA. Data were analyzed using path analyses within the Actor-Partner Interdependence Model (APIM) framework. Consistent with previous findings, we found that self-control was negatively associated with the perpetration of EVA. Furthermore, we found partner effects, such that female-but not male-self-control predicted partner-observed perpetration of EVA. These findings highlight the importance of examining risk factors for EVA of both partners. Our findings also suggest that the association between self-control and EVA is partially a function of whether EVA is assessed through self-report or observational methodology. This highlights the need to conduct multi-method assessments in future research. As discussed in the article, our findings have implications for theories on intimate partner violence, study designs, and couple interventions.

The occurrence of earlier changes in family dynamics and friendship conflict predicting adolescent functional somatic symptoms: A large-scale prospective study.

OBJECTIVE: To better understand the role earlier stressful environments have in predicting functional somatic symptoms (FSS) in late adolescence, this study explores the effect the occurrence of earlier changes in family dynamics and friendship conflict have on FSS. METHOD: We used data from the Consortium for Longitudinal Studies on Child Abuse and Neglect (N = 1,314), a large, prospective study of children at risk for maltreatment and their parent/caregiver from approximately 4 to 18 years of age. RESULTS: We found a significant, small (Effect Size = .10), positive association between the frequency of family dynamic change during middle childhood (ages 6-12 years) and FSS at age 18 but not during middle adolescence (ages 14 and 16). Conflict with a same-sex best friend at age 16 moderated the association between the frequency of change and FSS. The frequency of family dynamic change in middle childhood and middle adolescence was associated with greater FSS among those who reported greater conflict but not for those who reported experiencing lower conflict. Overall, these effects were specific to friendship conflict and remained when other friendship processes (intimacy and companionship) were included, did not generalize to anxiety/depressive symptoms, and predicted FSS without comorbid anxiety/depressive symptoms. No gender differences were found. The change-conflict interaction differed according to type of family dynamic change (parental vs. residential). CONCLUSION: Findings emphasize how earlier exposure to frequent changes in family dynamics in middle childhood is particularly associated with late-adolescent health, especially in the context of greater friendship conflict. (PsycINFO Database Record

Using the presurgical psychological evaluation to predict 5-year weight loss outcomes in bariatric surgery patients.

BACKGROUND: Psychosocial factors contribute to poorer weight loss outcomes following bariatric surgery; however, findings on associations between preoperative psychiatric diagnoses, psychological testing, and weight loss are inconsistent. OBJECTIVES: Examine associations between presurgical psychiatric diagnoses derived from a semi-structured clinical interview and test scores from the Minnesota Multiphasic Personality-Inventory-2 - Restructured Form (MMPI-2-RF) and 5-year Body Mass Index (BMI) outcomes. SETTING: Cleveland Clinic Bariatric and Metabolic Institute METHODS: 446 consecutively consented patients who underwent a Roux-en-Y gastric bypass (RYGB) at least 5 years prior were included in the study. A majority were women (74.2%) and Caucasian (66.2%). Patients' mean presurgical BMI was 49.14 kg/m2 [SD = 9.50 kg/m2]. Psychiatric diagnoses were obtained from a presurgical, semi-structured clinical interview and all participants were administered the MMPI-2-RF at their presurgical evaluations. BMIs were collected at 4 postoperative time points across a 5-year trajectory. This prospective design utilized latent growth curve modeling. RESULTS: Older patients evidenced a slower rate of BMI reduction over time. A presurgical diagnosis of Binge Eating Disorder predicted higher BMIs at the 5-year outcome. Scores on MMPI-2-RF measures of emotional and behavioral dysfunction domains incrementally predicted poorer weight loss outcomes. CONCLUSION: Preoperative indicators of psychopathology, notably indicators that are dimensional in nature, are important in predicting postoperative outcomes. Closer follow-up with patients who evidence presurgical psychological factors, both before and after surgery, may help improve outcomes.

Preadolescents' Relationships with Pet Dogs: Relationship Continuity and Associations with Adjustment.

Research on human-animal interaction in children has been studied in isolation rather than integrated with core theories of children's relationships. This study is one of the first to examine how children's relationships with pet dogs are related to their human relationships (parent-child attachments, friendships) and to child adjustment, and to include observational assessment of children's interactions with their pet dog. Children (9 to 11 years old, n = 99) completed questionnaires regarding relationships with pet dogs, parents, and friends. Half the children were observed interacting with their pet dog. Children and teachers reported children's adjustment. Children who felt closer to their dogs were more securely attached to mothers and fathers, and reported more positive qualities and less conflict with friends. Children with more secure attachments to mothers, and greater companionship with dogs, interacted more with their dogs. Parental attachment and friendship quality, but not the pet dog relationship, were related to child adjustment.

The Association of Attachment Anxiety and Avoidance With Emotional Dating Abuse Perpetration Using Multimethod, Dyadic Data.

This study examined the relationship between emotional dating abuse perpetration and attachment anxiety and avoidance using multimethod, multi-informant dyadic data. Data were derived from a sample of young adult heterosexual dating couples (N = 113 couples). We measured attachment through self-report survey data and emotional dating abuse through self-report surveys, partner-report surveys, and ratings by independent observers of a videotaped couple interaction. Both female and male anxiety were related to female emotional abuse across each method. Male anxiety was related to male emotional abuse in survey data, but female anxiety was related to male emotional abuse in observed data. Neither male nor female avoidance was related to emotional abuse. Dating abuse prevention should focus on attachment anxiety factors (e.g., jealousy, anger) to reduce emotional abuse in young adult romantic relationships.

Premature termination from psychotherapy and internalizing psychopathology: the role of demoralization.

BACKGROUND: Some research suggests that higher levels of depression and anxiety-related symptoms at intake are associated with premature termination from psychotherapy, but findings are mixed. However, theoretical and measurement considerations - introduced by a common mood factor - might complicate literature synthesis. Tellegen (1985) demonstrated that demoralization causes multicollinearity between measures of depression and anxiety, and other lines of research have converged to indicate that this construct is an important non-specific factor to consider when assessing mood pathology. METHODS: We utilized a sample of 557 community mental health center outpatients (188 males, 265 females; 80% Caucasian) with an average age of 32.2 years (SD=10.2). We used self-report indicators to model latent low positive emotionality and negative emotionality constructs, which are temperament markers of core depressive and anxiety symptoms. We further specified a latent demoralization bifactor from these indicators. RESULTS: As hypothesized, the bifactor model yielded significantly better fit than competing one-factor and two-factor models. Furthermore, the bifactor was substantially correlated with a demoralization measure (r=.96). As expected, low positive emotionality and negative emotionality were significant predictors of therapist ratings of premature termination. Though demoralization was a non-significant predictor, the structural paths from the other two internalizing constructs markedly increased in the bifactor model relative to the two-factor model. LIMITATIONS: Replications with other, more diverse clinical populations using multi-method indicators of premature termination are needed. CONCLUSIONS: This research indicates that after accounting for demoralization patients presenting with core mood disorder symptoms are at substantially increased risk for premature termination.

The association between alcohol use and engagement in casual sexual relationships and experiences: a meta-analytic review of non-experimental studies.

The present study provides a meta-analytic review of the association between alcohol use and engagement in casual sexual relationships and experiences (CSREs). Specifically, the meta-analysis focused on non-experimental studies of community and college samples. Results from the meta-analysis, which included 29 relevant studies (34 effect sizes), indicated that alcohol use was significantly associated with engaging in CSREs, r = .34, 95 % CI [.29-.38], but that this link showed considerable variability. Subsequent analyses examined moderators that may explain this heterogeneity. Results revealed that age and method of assessment significantly moderated the effect of alcohol use on CSRE engagement such that the association was greater for emerging adults (18-24 year olds) than older adults and online assessments produced greater effect sizes than paper-and-pencil assessments. These results have implications for future research and intervention development. In particular, this meta-analysis emphasizes the need for studies that utilize consistent measurements of CSRE engagement, include diverse methodology, and expand upon sampling.

Fibroelastoma Recurrence in Left Ventricle: Rarity of Primary Cardiac Tumor.

Cardiac papillary fibroelastoma (CPF) is a primary cardiac neoplasm usually detected by echocardiography. Left ventricular fibroelastomas are extremely rare. The incidence of CPF is between 0.0017 and 0.33% during autopsy studies. We report a 70-year-old man who had papillary fibroelastoma discovered and resected in 2005 that recurred in 2013. The tumor grew rapidly from 2013 to 2014. A bioprosthetic mitral valve was placed in 2014. Due to the location and nature of the recurrent tumor, mitral valve replacement was the treatment of choice to prevent a third recurrence of the fibroelastoma. The patient was discharged from the hospital on postoperative day 9.

Interpersonal aggression victimization within casual sexual relationships and experiences.

The frequent occurrence of aggression within committed romantic relationships is well documented. However, little is known about experiences of interpersonal aggression within casual sexual relationships and experiences. This study aimed to describe the occurrence of emotional, physical, and sexual aggression victimization within committed romantic relationships, casual dating relationships, friends-with-benefit relationships, booty-calls, and one-night stands. College students (N = 172) provided data regarding the lifetime occurrence of emotional, physical, and sexual aggression across different forms of casual sexual relationships and experiences (friends-with-benefits, booty-call, casual dating, one-night stands, committed relationships). Emotional, physical, and sexual subtypes of aggression were reported across all casual sexual relationships and experiences. While a higher percentage of individuals who had been involved in committed relationships reported experiencing at least one form of aggression (approximately 69%), prevalence of at least one form of aggression ranged from approximately 31% to 36% for the various casual sexual relationships/experiences. Across relationships/experiences, emotional and sexual aggression were more common than physical aggression. The findings from this study indicate that emotional, physical, and sexual aggression occur across types of relationships and experiences. Thus, the current study underscores the importance of considering casual dating, friends-with-benefits, booty-calls, and one-night stands when assessing interpersonal aggression.