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101.
O. P. Sanjay 《Indian journal of clinical biochemistry : IJCB》2004,19(1):40-44
Although potassium is critical for normal electro physiology, the associations between pre-operative serum potassium level
and peri-operative adverse events such as arrhythmias in cardiac surgery have not been examined in detail.
The objective of this study was to determine the prevalence of abnormal pre-operative serum potassium levels and whether such
levels were associated with adverse peri-operative events in 50 patients undergoing coronary artery bypass grafting. Intra-operative
and post-operative arrhythmias, the need for cardio-pulmonary resuscitation, cardiac death and death due to any cause prior
to discharge from the post-operative intensive care unit were studied. The incidence for adverse outcome was 0.5% for death,
0.5% for cardiac death and 2% for cardio pulmonary resuscitation in patients with hypokalemia (serum potassium level <3.5
meq. L−1). Hypokalemia was found to be a predictor of serious peri-operative (OR:2.2; 95% Cl: 1.2–4.1) and post-operative arrhythmias
(OR: 1.7;95%Cl: 1.0–2.7).
Pre-operative potassium repletion is low cost and low risk treatment measure and the data from this study suggests that screening
and repletion be considered in patients scheduled for cardiac surgery. 相似文献
102.
An agenda-building model was examined for the question of Africaand terrorism. A path analysis compared real-world events (deathsand attacks attributed to terrorism), presidential emphasis,media coverage, and foreign aid for 20 African nations. Resultsshow a clear agenda-building trend—when nations were emphasizedwith a terrorism frame. Presidential emphasis of nationsinvolvement in terrorism influenced media coverage and the policyagenda. The findings also suggest that deaths attributed toterrorism influenced the news and policy agendas. Media coverageof nations with a terrorism frame influenced the policy agenda.Only one significant path coefficient was found in the analysisof agenda setting without terrorism framing: The more PresidentBush mentioned a nation in his public statements, the more TheNew York Times covered the country. Received for publication September 29, 2006. Accepted for publication March 27, 2007. 相似文献
103.
Shahron Williams van Rooij 《Education and Information Technologies》2007,12(4):191-209
As institutions of Higher Education try to balance limited resources with the rising costs of technology, some institutions
are turning to Open Source software for campus-wide applications such as course management systems and portals. The assumption
is that Open Source will provide the flexibility to build pedagogically sound learning environments while increasing technology
efficiencies. This paper outlines the current state of Open Source software deployment in US Higher Education based on a survey
of 772 Chief Academic Officers and Chief Information Officers conducted in 2006. The results indicate that Carnegie classification
is a critical differentiator of awareness, adoption, and perceptions of Open Source software applications, with perceived
cost of ownership being the key driver of Open Source adoption. Moreover, the study shows that institutions have made little
progress in the development of polices and procedures for Open Source regulatory compliance and security. The study serves
as a baseline for future research into the conditions for successful use of Open Source for supporting integrated learning
environments that deliver campus-wide efficiencies.
Shahron Williams van Rooij is Assistant Professor of Instructional Technology at George Mason University with a focus on the university’s e-Learning Certificate Program. She holds a Ph.D. in Quantitative Methods in the Social Sciences from the City University of New York and has just completed a second doctorate in Instructional Technology and Software Information Systems at George Mason University. As a Certified Distance Education Professional (C.D.E.P.) credentialed by Texas A&M University, she is a frequent speaker on the development of Web-based education and has published in a variety of journals such as the WebNet Journal, the Journal of Interactive Learning Research, the Journal of Modern Business, the Marketing Research Review and the Journal of Research on Technology in Education. Prior to joining GMU, she was the Director of Marketing at Datatel, Inc., in Fairfax, VA, where she facilitated the engineering of new e-learning technology solutions. 相似文献
Shahron Williams van RooijEmail: |
Shahron Williams van Rooij is Assistant Professor of Instructional Technology at George Mason University with a focus on the university’s e-Learning Certificate Program. She holds a Ph.D. in Quantitative Methods in the Social Sciences from the City University of New York and has just completed a second doctorate in Instructional Technology and Software Information Systems at George Mason University. As a Certified Distance Education Professional (C.D.E.P.) credentialed by Texas A&M University, she is a frequent speaker on the development of Web-based education and has published in a variety of journals such as the WebNet Journal, the Journal of Interactive Learning Research, the Journal of Modern Business, the Marketing Research Review and the Journal of Research on Technology in Education. Prior to joining GMU, she was the Director of Marketing at Datatel, Inc., in Fairfax, VA, where she facilitated the engineering of new e-learning technology solutions. 相似文献
104.
Phonological awareness, phonological memory, and phonological access to lexical storage play important roles in acquiring
literacy. We examined the convergent, discriminant, and predictive validity of these phonological processing abilities (PPA)
in 389 3-, 4-, and 5-year-old children. Confirmatory factor analysis supported the validity of each PPA as separate from general
cognitive ability and separate from each other. Multigroup structural equation modeling (SEM) with mean structure demonstrated
that older preschoolers have better developed latent PPA than younger preschoolers but that the structure of PPA is equivalent.
RAN was found uniquely associated with letter knowledge and text discrimination in younger preschoolers, and PA was found
uniquely associated with word reading skills in older preschoolers. Finally, general cognitive ability was only indirectly
associated with emergent literacy via PPA. These results highlight the importance of PPA in the early literacy development
of English-speaking preschool children. 相似文献
105.
Nan O’Sullivan 《Educational Philosophy and Theory》2019,51(4):424-433
This research parallels Tongan academic Hūfanga ‘Okusitino Māhina’s assertions in the 1994 Contemporary Pacific article Our Sea of Islands, that ‘People are thought to walk forward into the past and walk backward into the future, both taking place in the present, where the past and the future are constantly mediated in the ever-transforming present’ alongside those of Professor Terry Irwin and fellow Transition Designers in which they discuss the use of Indigenous Wisdom to enable designing for the Long Now as defined by Brand in his 1999 book The Clock for the Long Now: Time and Responsibility. In the 2015 Transition Design Monograph Irwin asserts that, ‘Transition Design draws on knowledge and wisdom from the past to conceive solutions in the present with future generations in mind’. This paper draws on the pre-industrial wisdom of indigenous knowledge, specifically that of the Pacific regions, Moana, who have lived and designed sustainably in-place for generations to illustrate the value it holds for the formulation of sustainable and sustaining futures. 相似文献
106.
O. McCormack J. O'Flaherty B. O'Reilly J. Liston 《British Educational Research Journal》2019,45(1):161-180
This article problematises the place of religion within publicly managed Education and Training Board (ETB) schools in the Republic of Ireland. The study draws on interview data from 43 school personnel across 18 ETB second-level schools, as well as eight interviews with ETB Education/Chief Executive Officers. Having established the legal and historical contexts, the place of religion is explored from the perspective of school life and prescribed curriculum. Across the 18 schools, the prescribed curriculum for Religious Education did not take the form of ‘faith formation’. Rather, focus was placed on exploring all world religions. However, this compares with the role of religion within the life of the school; 14 of the 18 participating schools had religious dimensions as part of school life. Half of these schools (n = 7) were Designated Community Colleges, while the remainder were Non-Designated (n = 7). The religious dimension was always Catholic in nature. Bar a few exceptions, the role of religion within the life of the school remained largely unquestioned by school personnel. The article explores the findings in light of the legislative and historical contexts. 相似文献
107.
Valerie Dean O’Loughlin Polly R. Husmann James J. Brokaw 《Anatomical sciences education》2019,12(2):181-190
Education research is increasingly being recognized as a legitimate route for faculty development in universities. However, many anatomy faculty lack the appropriate training and access to experienced mentors who can help them develop their own education research projects. Inspired by the American Physiological Society’s Institute for Teaching and Learning, the coauthors proposed and developed the inaugural Anatomy Education Research Institute (AERI 2017). Funded by an American Association of Anatomists Innovations grant, the five-day institute was held in Bloomington, Indiana in July 2017. The coauthors spent two years preparing the conference schedule, inviting speakers who could discuss education research topics and mentor applicants, reviewing applications, developing assessment instruments for the institute, and hosting the institute. A total of 62 registered participants (applicants and invited speakers) attended AERI 2017. Through a series of presentations and workshops, participants were introduced to many aspects of education research and the Scholarship of Teaching and Learning, including developing rigorous education research questions, determining appropriate methods to assess these questions, and searching the education research literature. Each day also included regular time devoted to work on their own education research project with help from more experienced mentors. Throughout the conference, participants were encouraged to post information on Twitter, using the hashtag #AERI2017. Participants had strong positive impressions of the conference and strongly requested future AERI conferences be held. Follow-up analyses will assess the institute in alignment with Kirkpatrick’s Four Levels of Evaluation Model, though preliminary evaluation indicates AERI 2017 met the original aims of the proposal. 相似文献
108.
Stephen O. Ajayi 《Africa Education Review》2019,16(2):1-15
Four theoretical frameworks were used to explore causations of turnover amongst high school teachers in Nigeria: (1) teachers’ personal health, (2) work–family life, (3) job satisfaction, and (4) actual turnover intention. Quantitative data were obtained from 925 public high school teachers in Ogun State, South-Western Nigeria. Cronbach's Alpha reliability procedure, regression modelling and t-test were used to analyse a total of 96 causations of turnover. Ad hoc analysis returned an Alpha value of 0.78. However, this improved to 0.93 when the causation factors were reduced to 64 – those with highest item-rest and itemtotal correlations. The findings showed that job (dis)satisfaction, personal health and work– family life conflict are prominent amongst the issues that trigger the intention of Nigerian high school teachers to quit their jobs voluntarily. Insights from the findings will help funding administrators in prioritising strategic decisions around mitigating turnover. 相似文献
109.
It is clear from the extant literature that gender inequities exist in a myriad of ways in science classrooms. Past research, however, has been conducted solely from researchers' observations and has neglected to investigate students' awareness of and reactions to their own experiences. Hence, this study focused on students' perceptions of gender differences in instructional activity and talk about that activity in physics and honors physics classes. Data analysis showed that although teachers may be unaware of gender inequities, students of both sexes are not unaware of such inequities. Females explained their fears of offering their opinions and participating in activities like labs and small-group or whole-class discussions. Differential language patterns were found for males and females, particularly when discussion was structured and rewarded for refutation. Explanations are offered for these disparities and suggestions are given for addressing gender bias in science classrooms. It has been well documented that science classrooms are not gender fair (Bazler & Simonis, 1991; Bianchini, 1993; Tobin, 1988). Teachers, texts, and the forms of instruction they perpetuate contribute to gender inequities in science instruction. For example, research tracing changes in science textbooks over time has shown that current texts have failed to eliminate barriers to women in science (Bianchini, 1993). Science textbooks are criticized for their unequal treatment of genders, with illustrations, photos, and texts of males far outnumbering those of females, despite the approximate 50/50 male/female ratio of our population (Bazler & Simonis, 1991). In addition to the proclivity of science textbooks to favor males, researchers speculate that the tendency for boys to achieve higher than girls in science may be a result of more opportunity to engage in academic tasks (Tobin & Garnett, 1987). Their behavior shows that teachers have differential expectations for students' responses in activities like teacher-led discussion. In teacher-led, whole-class discussion, boys are spoken to more frequently and are asked more higher-order questions (Becker, 1991; Hall & Sadler, 1982). Teachers in science classrooms elaborate more on males' responses than females' responses in large-group discussion of scientific concepts (Jones & Wheatley, 1990). © 1996 John Wiley & Sons, Inc. 相似文献
110.
Janice E. Williams 《Psychology in the schools》1996,33(2):159-162
Test anxiety among academically talented high school students (N = 103) was explored in this study. Two components of test anxiety were assessed: a cognitive component (worry) and a physiological component (emotionality). The results indicated that these students suffered from test anxiety, and that higher anxiety was related to lower science performance. Overall, females reported more test anxiety than did males. Whereas females experienced higher worry than emotionality, males reported little difference between the two anxiety components. Implications for college-bound students are discussed. © 1996 John Wiley & Sons, Inc. 相似文献