Differential Treatment of Siblings: Interview and Diary Analyses Comparing Two Family Contexts

We assessed parental differential treatment of siblings (maternal time, affection, discipline) in normal and high-risk families. Differential treatment was measured using home interviews, nightly phone ratings, and daily diaries tracking how mothers spent their time. Subjects were 40 mothers of toddlers (average age 2 years) and preschoolers (average age 4 1/2 years): half were caring for a younger child with a chronic illness (i.e., cystic fibrosis), and half were caring for two healthy children. Little evidence of parental differential treatment was found in the home or phone interview data. However, on the diary variables, both quantitative and qualitative differences in parental treatment were found in cystic fibrosis (CF) versus comparison families. Specifically, mothers spent more individual time with younger, chronically ill children in play and mealtime activities than with their older, healthy siblings. Further, mothers in the CF group rated time spent with older children as significantly more negative than time spent with younger children. Convergence between measures of differential treatment and advantages of using a high-risk comparison approach are discussed.     

Engaged food science: Connecting K‐8 learners to food science while engaging graduate students in science communication

Connecting the public to concepts in science, technology, engineering, and mathematics (STEM) is an essential for technological advancement and inspiring future scientists, impacting both the communicator and the audience's understanding of scientific topics. Without proper communication of scientific knowledge, acceptance and implementation of new technologies can be hindered. Additionally, increasing public awareness about current scientific issues through STEM engagement permits more informed policy and consumer choices, especially in the field of food science where many new food technologies are met with initial resistance by the consuming public. Here, we describe an event that introduced topics in food science to the nonexpert public, including K‐8th grade participants and their adult caregivers in an informal learning environment. This program consists of six activities that collectively introduce three areas in food science: food chemistry, food microbiology, and process engineering. Protocols are provided for each activity including a materials list (with the option to scale up or down according to event duration, event space allowances, and number of participants), learning objectives and discussion points that are adaptable to different age groups, event spaces, or budgets. Each activity has a participatory component to ensure both audience member and instructor engagement. A program designed for food science communication empowers young scientific minds to better understand complex scientific topics and could inspire them to envision a possible career in STEM fields, with the additional benefit of providing graduate students an exciting medium through which they may practice their science communication skills, potentially benefiting not only their personal academic and professional skills but also broader societal needs.     

Measuring Relational Reasoning

Relational reasoning is the foundational cognitive ability to discern meaningful patterns within an informational stream, but its reliable and valid measurement remains problematic. In this investigation, the measurement of relational reasoning unfolded in three stages. Stage 1 entailed the establishment of a research-based conceptualization of the construct and the development of a corresponding Test of Relational Reasoning (TORR). Stage 2 focused on the reliability and validity of data from the TORR. Analyses showed the data from the TORR to be reliable indicators of students' ability to reason relationally, and TORR performance predicted students' performance on SAT verbal and math problems. Stage 3 examined the underlying structure of the construct through Confirmatory Factor Analysis (CFA). Of the three CFA models tested, models with dedicated factors for analogical, anomalous, antinomous, and antithetical reasoning were deemed the best fit for the data.     

A present absence: undergraduate course outlines and the development of student creativity across disciplines

While recent scholarship has suggested that colleges and universities have an obligation to help cultivate students’ creativity, existing evidence suggests that this priority is infrequently and imperfectly realized in practice. In order to further examine the potential prevalence of this gap, the present study conducted a qualitative analysis of all publicly available undergraduate course outlines from one Canadian university for the 2013–2014 academic year. Using a modified version of an existing analytical tool, we scrutinized syllabi from across academic disciplines for explicit and implicit references to student creativity, understanding these texts as significant locations at which meanings about teaching and learning are enacted. Based on this analysis, we argue that creativity occupies a relatively circumscribed position in many ways – particularly in the Science, Technology, Engineering, and Mathematics disciplines, but may nonetheless be fostered through the deployment of relevant activities. Implications for the development of student creativity are considered.     

The angiogenetic effect of intramuscular administration of b-FGF and a-FGF on cardiac muscle: The influence of exercise on muscle angiogenesis

Abstract

Although angiogenetic therapy using recombinant growth factors holds much hope for the treatment of ischaemic diseases, there are still many unanswered questions, including the method of administration, the correct dose of these factors, and the duration of the therapeutic approach. Exercise has also been suggested to induce neovascularizaiton in muscles. We evaluated the angiogenetic effects of the intramuscular administration of basic-fibroblast growth factor (b-FGF) and acidic-fibroblast growth factor (a-FGF) in rat heart, compared with rats who exercised daily. In conclusion, both the intramuscular administration of b-FGF and exercise increased significantly angiogenesis in the heart in contrast to the intramuscular administration of a-FGF, which was ineffective.     

Analyzing and Integrating Models of Multiple Text Comprehension

We introduce a special issue featuring four theoretical models of multiple text comprehension. We present a central framework for conceptualizing the four models in this special issue. Specifically, we chart the models according to how they consider learner, texts, task, and context factors in explaining multiple text comprehension. In addition, the models are contrasted along three dimensions capturing different orientations toward multiple text comprehension. Models in the special issue are described as more behaviorally or cognitively focused, as conceptualizing multiple text comprehension as an internally driven or an externally triggered process, and as directly responsive to or indirectly influenced by task. The importance and relevance of this special issue for research on multiple text comprehension are discussed.     

The flight attendant dilemma: an analysis of communication and sensemaking during in-flight emergencies

Building on past research, this article argues that organizational life can be usefully construed as a series of communicative performances that are embedded and enacted in everyday discursive practices. Specifically, this research explores the sensemaking process individuals undertake when faced with the dilemma of knowing when to invent appropriate ways to respond rather than being automatically constrained by past routines. The research presents case study evidence drawn from participant observation and interviews with flight attendants from a major U.S. airline. Shown to be high in emotional and impression management, flight attendants perform a feminized role that privileges accommodation over authority and reassurance over safety that may influence their performances in emergency situations. The work ends with an evaluation of the dominant air travel performance in relation to safety and offers recommendations for facilitating communication and coordination among flight attendants and pilots.