Reactions to cyberbullying among high school and university students

In this study, behavioral and emotional reactions to cyberbullying were investigated by surveying 567 undergraduate-level university students and 211 high school students. Among the study participants, 170 of the undergraduates (29.98%) and 120 of the high school students (56.87%) reported that they had recently been cyberbullied. A four-factor scale with 37 items was used to investigate the behavioral cyberbullying reactions of victimized students. The four factors were revenge, countermeasure, negotiation and avoidance. An additional two-factor scale with 11 items was used to classify victimized students’ emotional reactions as either internalizing or externalizing. Explained variance values of both scales were above 50%, and the factors were found to have acceptable internal consistency coefficients. Behavioral and emotional reactions varied according to gender and school level. Computer self-efficacy and internet use were associated with different reaction types.     

Understanding the Determinants of Service Channel Preference in the Early Stages of Adoption: A Social Cognitive Perspective on Online Brokerage Services*

In today's increasingly technology‐mediated world, individuals are often confronted with a decision of whether to obtain services through online, self‐service technologies or traditional, nontechnological alternatives. Understanding the mechanisms by which consumers choose among these competing service channels represents an important concern for organizations, consumers, and Web site designers. This study develops a research model based on Social Cognitive Theory to explain and predict service channel preferences that arise in the early stages of adoption, before a consumer conducts business using a particular channel. The model is subsequently tested in the brokerage services context, using observations obtained via survey. Given the growing popularity of online investing combined with the challenging prospect of making optimal decisions in an inherently risky environment, the context offers insights of practical and theoretical importance. The results suggest that task‐specific self‐efficacy beliefs serve as the activating mechanism kicking off a chain of psychological events that entice consumers to favor a particular service channel. Higher levels of self‐efficacy induce individuals to prefer the online approach. In addition to its direct effect on preference for the online service channel, higher levels of self‐efficacy influence one's propensity to take risks and expectations of performance‐oriented rewards, which, in turn, sway consumers to favor the online service channel. Furthermore, self‐efficacy and perceptions concerning the credibility of online information interact to affect service channel preference. Consumers are more likely to prefer the online service channel when they view themselves as capable and perceive online sources to be credible. Implications for theory and practice are discussed in light of the findings.     

Low glomerular filtration rate as an associated risk factor for sarcopenic muscle strength: is creatinine or cystatin C-based estimation more relevant?

Introduction: We aimed to evaluate the association of a decreased glomerular-filtration-rate (GFR?<60?ml/min/1.73?m²), estimated using Modification of Diet in Renal Disease (MDRD), creatinine- and cystatin C-based (CKDEPI-CR and CKDEPI-CC) Chronic Kidney Disease Epidemiology Collaboration equations with handgrip strength (HGS).

Methods: Community-dwelling males aged?≥60 years admitted to outpatient clinic were included. We used MDRD, CKDEPI-CR, and CKDEPI-CC formulas for GFR estimation and corrected these for body surface area. Muscle strength was assessed by HGS.

Results: 209 men (mean age 67.8?±?6.4) were enrolled. Sixty-two patients (29.7%) had sarcopenic HGS. Subjects with sarcopenic HGS were older, had higher rate of a GFR?2, had lower mid-upper arm circumference; tended to have lower creatine kinase, albumin, CKDEPI-CC-GFR levels; and higher BUN/creatinine ratio and cystatin C. Multivariate logistic regression analysis revealed a CKDEPI-CC lower than 60?ml/min/1.73 m² as the only independent factor underlying sarcopenic HGS. Higher age tended to have an independent association. Only higher age was independently associated with low HGS when other estimations were used (p?=?0.013 and p?=?0.021 when MDRD and CKDEPI-CR were used, respectively).

Conclusions: There is a strong association of a GFR level of <60?ml/min/1.73 m² with sarcopenic HGS, when CKDEPI-CC formula is used.     

The key role of positive parenting and children’s temperament in post‐institutionalized children’s socio‐emotional adjustment after adoption placement. A RCT study

Parenting interventions represent a means for experimentally inquiring socio‐emotional change of post‐institutionalized children after adoption. We used this approach in a three time point RCT study involving 83 post‐institutionalized children (M_age = 33.5 months, SD = 17.1) and their adoptive mothers (M_age = 42.6, SD = 3.9), attending either the Video‐Feedback Intervention to promote Positive Parenting in adoption and foster care or a dummy intervention. Controlling for gender and age at adoption, children showed a significant change in their socio‐emotional adjustment in the specific variables inquired—that is, emotional availability‐EA, and behavioral problems—after intervention attendance. Mediation and moderated mediation models showed that maternal EA was a main factor affecting children’s EA and externalizing behavioral problems, with a key moderating role played by children’s temperament; children with high scores on temperamental negative affect benefitted most from their mothers’ increase in EA.     

Low skeletal muscle mass index is associated with function and nutritional status in residents in a Turkish nursing home

Introduction: To determine the prevalence of low muscle mass (LMM) and the relationship between LMM with functional and nutritional status as defined using the LMM evaluation method of European Working Group on Sarcopenia in Older People (EWGSOP) criteria among male residents in a nursing home.

Methods: Male residents aged?>60 years of a nursing home located in Turkey were included in our study. Their body mass index (BMI) kg/m², skeletal muscle mass (SMM-kg) and skeletal muscle mass index (SMMI-kg/m²) were calculated. The participants were regarded as having low SMMI if they had SMMI?<9.2?kg/m² according to our population specific cut-off point. Functional status was evaluated with Katz activities of daily living (ADL) and Lawton Instrumental Activities of Daily Living (IADL). Nutritional assessment was performed using the Mini Nutritional Assessment (MNA). The number of drugs taken and chronic diseases were recorded.

Results: One hundred fifty-seven male residents were enrolled into the study. Their mean age was 73.1?±?6.7 years with mean ADL score of 8.9?±?2.0 and IADL score of 8.7?±?4.6. One hundred twelve (71%) residents were aged?>70 years. Thirty-five men (23%) had low SMMI in group aged?>60 years, and twenty-eight subjects (25%) in the group aged?>70 years. MNA scores were significantly lower in residents with low SMMI compared with having normal SMMI (17.1?±?3.4 versus 19.6?±?2.5, p?=?0.005). BMI was significantly lower in the residents with low SMMI compared with normal SMMI (19.6?±?2.7 versus 27.1?±?4.1, p70 years (8.1?±?2.6 versus 9.1?±?1.6, p?=?0.014). In regression analyses, the only factor associated with better functional status was the lower age (p?=?0.04) while the only factor associated with better nutrition was higher SMMI (p?=?0.01).

Conclusions: Low SMMI detected by LMM evaluation method of EWGSOP criteria is prevalent among male nursing home residents. There is association of low SMMI with nutritional status and probably with functional status within the nursing home setting using the EWGSOP criteria with Turkish normative reference cut-off value.