Deduction Algorithms for Some Extensions of Allen’s Interval Logic

This paper considers Allen’s interval logic language and the languages whose statements are Boolean combinations of Allen’s logic statements, possibly, with metric information. Some deduction algorithms for the languages are presented. The algorithms are based on the analytic tableaux method.     

Gotcha! Catching Kids During Mindless Reading

The purpose of the current study was to examine the mindless reading behavior of children. Across two studies, 2nd-grade students read passages while their eye movements were monitored. Trained raters then identified mindless reading behaviors from the eye movement records. Several important findings emerged. We were able to reliably identify mindless reading behavior in children using eye-tracking methodology, which was characterized by shorter gaze durations and total time, more skipping, and in general a more erratic reading pattern than on-task reading behavior. On the other hand, on-task reading behavior was characterized by an increase in fixations and regressions, especially intraword regressions. Word frequency effects were attenuated during mindless reading. In addition, the children who engaged in mindless reading had weaker reading achievement profiles compared to children who read the entire passage.     

Microfluidic endothelial cell culture model to replicate disturbed flow conditions seen in atherosclerosis susceptible regions

Atherosclerotic lesions occur non-randomly at vascular niches in bends and bifurcations where fluid flow can be characterized as "disturbed" (low shear stress with both forward and retrograde flow). Endothelial cells (ECs) at these locations experience significantly lower average shear stress without change in the levels of pressure or strain, which affects the local balance in mechanical stresses. Common in vitro models of atherosclerosis focus primarily on shear stress without accounting for pressure and strain loading. To overcome this limitation, we used our microfluidic endothelial cell culture model (ECCM) to achieve accurate replication of pressure, strain, and shear stress waveforms associated with both normal flow seen in straight sections of arteries and disturbed flow seen in the abdominal aorta in the infrarenal segment at the wall distal to the inferior mesenteric artery (IMA), which is associated with high incidence of atherosclerotic lesion formation. Human aortic endothelial cells (HAECs) were cultured within the ECCM under both normal and disturbed flow and evaluated for cell shape, cytoskeletal alignment, endothelial barrier function, and inflammation using immunofluorescence microscopy and flow cytometry. Results clearly demonstrate quantifiable differences between cells cultured under disturbed flow conditions, which are cuboidal with short and randomly oriented actin microfilaments and show intermittent expression of β-Catenin and cells cultured under normal flow. However, in the absence of pro-inflammatory stimulation, the levels of expression of activation markers: intra cellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), platelet endothelial cell adhesion molecule-1 (PECAM-1), and vascular endothelial cell growth factor - receptor 2 (VEGF-R2) known to be involved in the initiation of plaque formation were only slightly higher in HAECs cultured under disturbed flow in comparison to cells cultured under normal flow.     

Characteristics of child abuse homicides in the state of Kansas from 1994 to 2007

Objective

This study described the epidemiology of child abuse homicides in the state of Kansas from 1994 to 2007. It focused on obtaining significant details on all recorded child abuse homicides in Kansas during this time frame to provide critical information that can be used for future preventive measures.

Methods

A retrospective case review was conducted on data gathered by the Kansas State Child Death Review Board for all cases of “child abuse homicides” that occurred from 1994 to 2007.

Results

A total of 170 child abuse homicide cases in Kansas between 1994 and 2007 were identified. The majority of these cases (63.5%) were considered fatal child physical abuse. There was a predominance of female victims (55.9%). The vast majority of victims were White (78.8%), followed by Black (17.1%). One to 2-year-olds accounted for the largest age group of children who were victimized (33.5%). For cases with known prenatal care status, 74% of mothers received adequate prenatal care. The largest percentage of victims was children of single mothers (40.6%), with no prior history of child abuse (60%). The majority of deaths occurred in the victim's residence (81.8%). The greatest number of deaths occurred secondary to abusive head trauma (42.9%), followed by asphyxia (21.8%). When a trigger was known, 44.2% involved inconsolable crying. The most common perpetrator was the victim's biological father (26.6%), followed by the victim's biological mother (24.9%), then the victim's mother's male paramour (19.8%).

Conclusions

Familiarity with characteristics involved in child abuse homicide allows for opportunities to enlist important preventive measures. Most child abuse homicides occurred at the hands of the victim's biological parents and in the victim's own residence. Prevention should be focused on parent education and coping mechanisms for the frustrating features of crying in normal infants that lead to shaking or abuse.     

The green waves of environmental sustainability in sport

The purpose of this paper is to provide a conceptual framework surrounding the typology of environmental sustainability efforts made within the sport industry. We draw from multiple theoretical frameworks (i.e. institutional theory and diffusion of innovation) to understand the increased similarities of environmental sustainability efforts through organizational learning as environmental sustainability efforts become more purposeful and sophisticated across the sport industry. The paper uses examples from various sport organizations and leagues to classify the efforts of sport organizations into waves of sport environmental sustainability efforts and important implications arising from them.     

Self-report measures of the home learning environment in large scale research: Measurement properties and associations with key developmental outcomes

Favourable home learning environments (HLEs) support children’s literacy, numeracy and social development. In large-scale research, HLE is typically measured by self-report survey, but there is little consistency between studies and many different items and latent constructs are observed. Little is known about the stability of these items and constructs over time when used in either longitudinal research or studies with children with a wide range of ages. A review of the literature shows commonalities and differences between approaches in research on HLE. When we tested the psychometric properties of a short-form measure of HLE with a Rasch item-response-model using longitudinal data from over 1600 Australian families, there was support for two dimensions of HLE—formal and informal learning frequency. We found that this measure was stable over the transitional period from pre-K to school as well as between gender and family language background. There were small but significant associations between the HLE measures and cognitive and behavioural developmental outcomes. We recommend that other measures of HLE could be similarly validated to assess their suitability for use in longitudinal research on learning environments. Recommendations are made for the future development of measures of broader constructs of the HLE.     

Key Problems in Organizing and Structuring University Research in Vietnam: The Lack of an Effective Research “Behaviour Formalization” System

Structure and organization seems to be at the root of many of the questions raised about institutional behaviour; however, with respect to research on university capacity building, few studies have examined research organizational problems, particularly in developing countries. This study investigates academic reactions to the structure and organization of research at four leading Vietnamese universities. Through document analysis and semi-structured interviews with 55 participants, the study finds that the four case-study Vietnamese universities have accomplished a number of the more visible tasks of research management such as creating research and research management positions; deciding primary organizational units for research delivery; creating a research office; and creating research oversight committees. However, they seem to neglect the other less visible tasks of organizing and structuring research such as developing rules for research integrity; developing a mechanism for evaluating the quality of research outcomes; preparing researchers and research managers for the necessary skills and knowledge; and deciding vertical and horizontal decentralization. The study concludes that even though research has been formally structured and organized, the management of research has not yet been professionalized. The key problem in organizing and structuring research is the lack of an effective system for research behaviour formalization. A more effective system for better formalizing research behaviours should be developed so that Vietnamese universities can integrate more successfully into the global research.     

Executive functions and components of oral reading fluency through the lens of text complexity

Reading and Writing - As readers struggle to coordinate various reading- and language-related skills during oral reading fluency (ORF), miscues can emerge, especially when processing complex texts....     

Challenging ESP teacher beliefs about active learning in a Vietnamese university

This article provides insights into how participating in an action research study challenged traditional beliefs about teaching practices and led to more active learning strategies being included in English for Specific Purposes (ESP) Science classes at a Vietnamese university. Recent reforms in higher education teaching and learning by the Vietnamese government have placed increased demands on universities to employ more active learning approaches to meet future global needs. In Vietnam, university teaching has generally been based upon traditional lecturing, whereas active learning requires a more student-centred approach whereby students engage cognitively in learning through increased participation and take greater responsibility for inquiring into new knowledge in meaningful and critical ways. Using a participatory action research approach, interviews, observations and planning meetings were undertaken with eight Science lecturers who were currently teaching ESP. The findings revealed how the lecturers underwent positive pedagogical shifts from traditional lecturing to more constructivist approaches to teaching and learning over the time of the study.