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2. What the World Chemical Community Thinks about the Concept of Physical and Chemical Change?
- Author
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Palmer, W. P.
- Abstract
The concept of physical and chemical change is far from being the clearest and most self-explanatory concept in the world. If a number of chemists are asked to define physical and chemical change, there may well appear to be a fair degree of uniformity in their answers, until a few examples are suggested. When chemists are asked to place a variety of changes into the category of physical or chemical change, then differences inevitably arise. It is not difficult to demonstrate this by viewing school textbooks and articles about the topic. In spite of this, physical and chemical change is still taught in most in most secondary school courses. The problem arises from the definition and the historical layers of meaning that have grown around the concept, almost by accretion, without teachers being aware of their significance. The purpose of this paper is to describe the answers given by experienced educators to a questionnaire, which attempted to find out what the views of science educators/chemists worldwide about physical and chemical change now are. Four appendixes present: (1) List of Respondents; (2) List of Questionnaires Returned; (3) Physical and Chemical Change: An Information Sheet; and (4) Full Questionnaire: Interview Protocol or Basis for Written Response.
- Published
- 1996
3. Role and Justification of Web Archiving by National Libraries: A Questionnaire Survey
- Author
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Shiozaki, Ryo and Eisenschitz, Tamara
- Abstract
This paper reports on a questionnaire survey of 16 national libraries designed to clarify how national libraries attempt to justify their web archiving activities. Results indicate they envisage that a) the benefits brought about by their initiatives are greater than the overall costs, b) the costs imposed on libraries are greater than the costs imposed on stakeholders, and c) all of them are making efforts to respond to legal risks in various ways (e.g. legislation, contracting and opt-out policies) although there are trade-off relations in terms of costs for negotiation, scope of access and size and scope of the web archive. The paper discusses whether a basic logic for justification of their web archiving is valid from the perspective of balancing cost-benefit. Further, it highlights the potential, underlying premises of the logic that motivates the intervention of national libraries as public sector organizations. (Contains 3 tables and 2 figures.)
- Published
- 2009
- Full Text
- View/download PDF
4. Prevalence of awareness, ever‐use and current use of nicotine vaping products (NVPs) among adult current smokers and ex‐smokers in 14 countries with differing regulations on sales and marketing of NVPs: cross‐sectional findings from the ITC Project
- Author
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Gravely, Shannon, Driezen, Pete, Ouimet, Janine, Quah, Anne C. K., Cummings, K. Michael, Thompson, Mary E., Boudreau, Christian, Hammond, David, McNeill, Ann, Borland, Ron, Thrasher, James F., Edwards, Richard, Omar, Maizurah, Hitchman, Sara C., Yong, Hua‐Hie, Barrientos‐Gutierrez, Tonatiuh, Willemsen, Marc C., Bianco, Eduardo, Boado, Marcelo, and Goma, Fastone Mathew
- Subjects
ELECTRONIC cigarettes ,AWARENESS ,CIGARETTE smokers ,EX-smokers ,SALES policy ,NICOTINE ,MARKETING laws ,HEALTH ,QUESTIONNAIRES ,SMOKING ,SURVEYS ,LOGISTIC regression analysis ,DISEASE prevalence ,CROSS-sectional method ,HEALTH literacy ,MIDDLE-income countries ,LOW-income countries ,LAW - Abstract
Aims: This paper presents updated prevalence estimates of awareness, ever‐use, and current use of nicotine vaping products (NVPs) from 14 International Tobacco Control Policy Evaluation Project (ITC Project) countries that have varying regulations governing NVP sales and marketing. Design, Setting, Participants and Measurements: A cross‐sectional analysis of adult (≥ 18 years) current smokers and ex‐smokers from 14 countries participating in the ITC Project. Data from the most recent survey questionnaire for each country were included, which spanned the period 2013–17. Countries were categorized into four groups based on regulations governing NVP sales and marketing (allowable or not), and level of enforcement (strict or weak where NVPs are not permitted to be sold): (1) most restrictive policies (MRPs), not legal to be sold or marketed with strict enforcement: Australia, Brazil, Uruguay; (2) restrictive policies (RPs), not approved for sale or marketing with weak enforcement: Canada, Malaysia, Mexico, New Zealand; (3) less restrictive policies (LRPs), legal to be sold and marketed with regulations: England, the Netherlands, Republic of Korea, United States; and (4) no regulatory policies (NRPs), Bangladesh, China, Zambia. Countries were also grouped by World Bank Income Classifications. Country‐specific weighted logistic regression models estimated adjusted NVP prevalence estimates for: awareness, ever/current use, and frequency of use (daily versus non‐daily). Findings NVP awareness and use were lowest in NRP countries. Generally, ever‐ and current use of NVPs were lower in MRP countries (ever‐use = 7.1–48.9%; current use = 0.3–3.5%) relative to LRP countries (ever‐use = 38.9–66.6%; current use = 5.5–17.2%) and RP countries (ever‐use = 10.0–62.4%; current use = 1.4–15.5%). NVP use was highest among high‐income countries, followed by upper–middle‐income countries, and then by lower–middle‐income countries. Conclusions: With a few exceptions, awareness and use of nicotine vaping products varied by the strength of national regulations governing nicotine vaping product sales/marketing, and by country income. In countries with no regulatory policies, use rates were very low, suggesting that there was little availability, marketing and/or interest in nicotine vaping products in these countries where smoking populations are predominantly poorer. The higher awareness and use of nicotine vaping products in high income countries with moderately (e.g. Canada, New Zealand) and less (e.g. England, United States) restrictive policies, is likely due to the greater availability and affordability of nicotine vaping products. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
5. "Spontaneous" late recovery from stuttering: Dimensions of reported techniques and causal attributions.
- Author
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Neumann, Katrin, Euler, Harald A., Zens, Rebekka, Piskernik, Bernhard, Packman, Ann, St. Louis, Kenneth O., Kell, Christian A., Amir, Ofer, Blomgren, Michael, Boucand, Véronique Aumont, Eggers, Kurt, Fibiger, Steen, Fourches, Audrey, Franken, Marie-Christine J.P., and Finn, Patrick
- Subjects
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STUTTERING , *AGE distribution , *ATTRIBUTION (Social psychology) , *CONTENT analysis , *CONVALESCENCE , *QUESTIONNAIRES , *SELF-evaluation , *SEX distribution , *T-test (Statistics) , *PATIENTS' attitudes , *DESCRIPTIVE statistics , *MANN Whitney U Test , *THERAPEUTICS - Abstract
• Techniques for late spontaneous recovery from stuttering clustered into six strategies. • The strategies reflect components of established treatments and naïve explanations. • Causal attributions of recovery clustered into three implicit theories about recovery. • Knowledge about strategies and implicit theories may help to improve treatment. (1) To survey the employed techniques and the reasons/occasions which adults who had recovered from stuttering after age 11 without previous treatment reported as causal to overcome stuttering, (2) to investigate whether the techniques and causal attributions can be reduced to coherent (inherently consistent) dimensions, and (3) whether these dimensions reflect common therapy components. 124 recovered persons from 8 countries responded by SurveyMonkey or paper-and-pencil to rating scale questions about 49 possible techniques and 15 causal attributions. A Principal Component Analysis of 110 questionnaires identified 6 components (dimensions) for self-assisted techniques (Speech Restructuring; Relaxed/Monitored Speech; Elocution; Stage Performance; Sought Speech Demands; Reassurance; 63.7% variance explained), and 3 components of perceived causal attributions of recovery (Life Change, Attitude Change, Social Support; 58.0% variance explained). Two components for self-assisted techniques (Speech Restructuring; Elocution) reflect treatment methods. Another component (Relaxed/Monitored Speech) consists mainly of items that reflect a common, non-professional understanding of effective management of stuttering. The components of the various perceived reasons for recovery reflect differing implicit theories of causes for recovery from stuttering. These theories are considered susceptible to various biases. This identification of components of reported techniques and of causal attributions is novel compared to previous studies who just list techniques and attributions. The identified dimensions of self-assisted techniques and causal attributions to reduce stuttering as extracted from self-reports of a large, international sample of recovered formerly stuttering adults may guide the application of behavioral stuttering therapies. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
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