Out of Sight, (Not Yet) Out of Mind: The Impact of Tie Strength on Direct Interaction and Social Surveillance Among Geographically Close and Long-Distance Facebook Friends

Social networking sites are considered a valuable resource to maintain existing friendships even over considerable distances. The present study emphasizes tie strength as a crucial determinant for the use of interactive and passive features among 302 active Facebook users and friends of different relational closeness (close friends vs. casual friends vs. acquaintances) as well as a moderator for the impact of physical distance. As expected, tie strength affected direct interaction linearly, whereas social surveillance followed a quadratic trend. Furthermore, moderation analyses revealed less frequent direct interaction between close friends and stronger surveillance of casual friends’ profiles as physical distance increases. These results indicate different functions in relationship maintenance for both behaviors as direct interaction aims at nurturing current relationships, while surveillance serves as a catalyst for promising future communications. As a consequence, physical distance influences direct interaction adversely due to emerging constraints but also contains informational value encouraging information-seeking behaviors.     

Starting the data conversation: informing data services at an academic health sciences library

Objective

The research obtained information to plan data-related products and services.

Methods

Biomedical researchers in an academic medical center were selected using purposive sampling and interviewed using open-ended questions based on a literature review. Interviews were conducted until saturation was achieved.

Results

Interview responses informed library planners about researchers’ key data issues.

Conclusions

This approach proved valuable for planning data management products and services and raising library visibility among clients in the research data realm.     

The effect of limb dominance on lower limb functional performance – a systematic review

Lower limb dominance (or lateral preference) could potentially effect functional performance. Clinicians are often asked to make judgements as to when a patient has sufficiently “recovered” from an injury, typically using strength and dynamic performance outcome measures. The primary purpose of this study was to systematically review the literature in relation to limb dominance within active adult populations and discuss some limitations to current methods and relate this to current clinical practice. A search of MEDLINE and CINAHL and EMBASE databases and reference lists of those articles identified was performed. Eleven articles were selected for meta-analysis. There was no statistical effect of limb dominance for any of the functional tests: isokinetic quadriceps and hamstring tests, hamstring:quadriceps ratios, single-leg hop for distance, single-leg vertical jump and vertical ground reaction force following a single-leg vertical jump. Pooled symmetry values varied from 94.6% to 99.6% across the tests, above the clinically accepted benchmark of 90% used in clinical practice. Although the results of this study must be used with discretion, asymmetries in the tasks described in this analysis should be viewed as undesirable and remedied accordingly. Further research is needed to quantify asymmetries, particularly in relation to sport-specific contexts.     

Approaches to studying and academic performance in short-essay exams

Previous research has generallyfailed to find a relation between the waystudents approach the task of studying andtheir exam grades. The present studyinvestigated why it is that a deep approach tostudying, which has been shown to result in ahigher quality of learning, does notconsistently result in higher exam grades. Theparticipants in the study were 49 third-yearpsychology students. They completedquestionnaires that assessed approaches tostudying, motivation, and intelligence. Theirfinal exam marks, along with indicators of thequality of their final exam responses and thequantity of information reproduced in the finalexam were used as indicators of academicperformance. The results showed that the deepstudy approach was linearly related to thequality of exam responses, but quadraticallyrelated to the quantity of informationreproduced. The use of the deep approach was nomore effective in facilitating high exam marksfor questions that emphasised understanding ofthe study material than for questions thatemphasised reproduction of it. Taken together,these findings suggest that students who usehigh levels of the deep approach fail toconsistently achieve higher exam grades becauseof deficiencies in the quantity of theirresponses, rather than because of theinsensitivity of exams to students'understanding of the study material.     

Changing cognitions in parents of two‐year‐olds attending Scottish Sure Start centres

The study examined how preschool intervention programmes set up by three Scottish local authorities changed parents’ cognitions. Quantitative parent outcomes were measured using Parenting Daily Hassles Scales (N = 88). A matched comparison group of parents (N = 55) recruited from the same areas of disadvantage but whose children did not attend the intervention programmes also completed questionnaires. Qualitative outcomes were evaluated using semi‐structured interviews (N = 30). A significant group × time interaction effect was found for daily hassle cognitions, Parenting Task–Intensity, Challenging Behaviour–Frequency and Challenging Behaviour–Intensity, with comparison group parents showing an increase in their experience of hassles during the ‘terrible twos’ compared with intervention group parents. Complementary qualitative data indicated that intervention group parents had gained valuable new insights into their children’s behaviour, changing how they thought about their role as parents and their behavioural and developmental expectations of their children. Implications for parental engagement in preschool programmes are discussed.     

Parenting and family socialization strategies and children's mental health: low-income Mexican-American and Euro-American mothers and children

The extent to which current theories on family-related factors associated with children's depression and conduct problems are applicable to Mexican American children was examined among demographically comparable samples of low-income Mexican American (English and Spanish speaking) and Euro-American mothers and children. There were ethnic differences in mean levels of children's depression, maternal inconsistent discipline, and hostile control. In addition, there were differences across language within the Mexican American sample on levels of reported maternal inconsistent discipline and hostile control. The vast majority of relations between parenting and mental health were similar between Mexican Americans and Euro-Americans, suggesting that current theories do apply across ethnic groups. However, analyses across language within the Mexican American sample showed that language preference moderated the relation between maternal acceptance and children's conduct problems. Moreover, the relation between acceptance and hostile control differed across groups. These results are discussed in light of the relative influence of ethnicity and other contextual variables on parenting and children's mental health.     

Transforming Teacher Constructs of Children and Families Who Are Homeless

The focus of this article is on articulating the importance of teacher development of constructs about homeless children and families and examining factors that influence teachers’ perceptions of children and families who are homeless or at high-risk of becoming homeless. The article also explores some strategies to support teachers in transforming their perceptions of homeless children and provides case examples of how this process can work. Three case studies explore how teacher educators and practicing teachers can work together to reflect on their own perceptions of homeless children from high-poverty backgrounds and how educators were able to transform their own perceptions in being able to better serve their students.     

Using possible-selves theory to understand the identity development of new teachers

Questions about identity and future success often occupy the thinking of individuals during life transitions. Possible-selves theory describes how future-oriented thought provides identity-relevant information and motivation to pursue self-relevant goals. Expected and feared possible selves of beginning teachers (n = 221) were analyzed revealing four main categories (i.e., interpersonal relationships, classroom management, instruction, and professionalism). Differences between student and beginning inservice teachers suggest a transitional trajectory that could have implications for understanding the “how” of teacher identity development. Possible-selves theory may help bring a degree of unity across divergent frameworks and help link identity to broader issues of teacher development.     

Advances in the phylogenesis of Agaricales and its higher ranks and strategies for establishing phylogenetic hypotheses

We present an overview of previous research results on the molecular phylogenetic analyses in Agaricales and its higher ranks (Agaricomycetes/Agaricomycotina/Basidiomycota) along with the most recent treatments of taxonomic systems in these taxa. Establishing phylogenetic hypotheses using DNA sequences, from which an understanding of the natural evolutionary relationships amongst clades may be derived, requires a robust dataset. It has been recognized that single-gene phylogenies may not truly represent organismal phylogenies, but the concordant phylogenetic genealogies from multiple-gene datasets can resolve this problem. The genes commonly used in mushroom phylogenetic research are summarized.