After postmodernism in educational theory? A collective writing experiment and thought survey     

Michael A. Peters  Marek Tesar  Liz Jackson 《Educational Philosophy and Theory》2018,50(14):1299-1307

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Burnout among university faculty: the central role of work–family conflict     

Kateřina Zábrodská  Jiří Mudrák  Iva Šolcová  Petr Květon  Marek Blatný  Kateřina Machovcová 《教育心理学》2018,38(6):800-819

This study examined both direct and indirect associations of faculty burnout with psychosocial work environments, using the job resources-demands framework. A sample of 2,229 faculty members (57.1% male) throughout public universities in the Czech Republic completed a questionnaire comprising measures of burnout and psychosocial work environment characteristics from the Copenhagen Psychosocial Questionnaire II. We formulated a structural model that hypothesised a positive effect of job demands (quantitative demands, work-family conflict (WFC), job insecurity) and a negative effect of job resources (influence, social community, role clarity) on burnout. Results showed that the strongest predictor of burnout was WFC, which had a direct positive effect on burnout and mediated the positive effect of quantitative demands on burnout. Further, a small direct negative effect of age and an indirect positive effect of involvement in research grants and administrative paperwork on burnout were observed. The findings indicate that university management can most effectively address burnout in academic staff not only by implementing policies that reduce WFC, workload and administrative paperwork, but also by providing more job resources to younger faculty and faculty involved in grant-based projects.  相似文献   

Relationships among gender,age, and intellectual development     

Lilian De Hernandez  Edmund A. Marek  John W. Renner 《科学教学研究杂志》1984,21(4):365-375

The purpose of this study was to investigate the relationships among gender, age, and intellectual development. Random samples of 70 females and 70 males were selected with each sex group equally divided into a low-age and a high-age group. The low-age group ranged in age from 16.25 years to 16.75 years and the high-age group from 16.76 years to 17.25 years. The Piaget tasks selected to measure cognitive development were: Conservation of Volume, Separation of Variables, and Equilibrium in the Balance and Combination of Colorless Chemical Liquids. Data from this research produced these findings: (1) males demonstrate a higher level of intellectual development than females, (2) males mature intellectually earlier than females, (3) the value of the conservation of volume task as a component of a battery of formal tasks depends upon whether the decisions are to be made on the basis of the total-task results or on individual task performance, and (4) there appear to be factors other than age and gender that are related to the development of formal operational reasoning. These investigators hypothesize that experiences is another important factor.  相似文献   

Academe in transition: Transformations in the Polish academic profession     

Marek Kwiek 《Higher Education》2003,45(4):455-476

The period since 1989 has been an extremely dynamic one in Polish highereducation. New opportunities have opened up for the academic community,along with new challenges. Suddenly, the academic profession has arrivedat a stage that combines far-reaching autonomy with rather uncertainindividual career prospects. In recent years, a number of new laws havebeen proposed that were intended to change the whole structure ofrecruitment, promotions, remuneration, working conditions, andappointments of academic faculty. All this has occurred admidst thestrains and tensions resulting from changes in the broader society. Thesudden passage from the more or less elite higher education system tomass higher education with a strong and dynamic private sector hastransformed the situation of the academic community beyond allrecognition. The transition has resulted in a new set of values andchanges in position, tasks, and roles for academe in society. Today,the future of the Polish academic profession remains undetermined. Thepositive changes were accompanied by the chronic underfunding of publichigher education. Polish academics have learned to accommodatethemselves to the permanent state of uncertainty in which they areforced to operate. The present paper analyzes the current situation fromthe perspective of global changes affecting the academic profession.  相似文献   

Understandings and misconceptions of biology concepts held by students attending small high schools and students attending large high schools     

William D. Simpson  Edmund A. Marek 《科学教学研究杂志》1988,25(5):361-374

Do students from small high schools show fewer understandings and more misconceptions of biology concepts than students attending large high schools? Fifty students attending large high schools (enrollments exceeding 900 students) and fifty students attending small high schools (enrollments less than 150 students) were randomly selected and than evaluated on their understandings and misunderstandings of four biology concepts: diffusion, homeostasis, food production in plants, and classification of animals and plants. Students attending small high schools showed less instances of understanding and more instances of misunderstanding the concepts of diffusion and homeostasis. These differences could be related to a higher percentage of students in large schools capable of formal operations; sound understanding of diffusion and homeostasis required students to use formal operations. No difference was observed between the large and small school samples for the concepts of food production in plants and classification of plants and animals. Students in the small school sample lived in agricultural communities and their daily experiences allowed them to develop some understanding of food production in plants and prevented instances of misunderstandings from being developed. Classification of animals and plants required concrete operations to understand; therefore, students in small schools were capable of developing sound understanding as well as students from large schools.  相似文献   

Asking for Numbers and Quantities: Visual Design Effects in Paper&Pencil Surveys     

Fuchs  Marek 《Int. Journal of Public Opinion Research》2009,21(1):65-84

When reporting frequencies and quantities in self-administeredsurveys using open-ended questions, respondents make use ofestimation strategies in order to provide a reasonable response.Accordingly, respondents do not only report pure numbers usingdigits, instead they extend their response to alphanumeric informationand explicit estimates (e.g. "about 10–20 cigarettes perday"). Such responses are not only of reduced quality, but theyalso require a lot of editing and cleaning in the post-fieldphase of a survey. While previous methodological work on frequencyquestions has focused on question wording, reference periodsand other text elements that have traditionally been consideredsignificant for high quality frequency responses, in this articlewe test the impact of various graphical characteristics of theresponse field in order to reduce the number of alphanumericelaborations and explicit estimates. The field-experimentalstudies reported are based on the assumption that respondentsinterpret formal characteristics of frequency questions as meaningfulinformation throughout the question answer process. The findingsreported will help survey designers reduce the proportion ofestimated responses. Received for publication October 24, 2007. Accepted for publication August 12, 2008.  相似文献   

Post-collection acidification of spot urine sample is not needed before measurement of electrolytes     

Tom&#x; &#x;lek  Pavel Musil  Marek P&#x;en ík  Vladimír Pali ka 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2022,32(2)

IntroductionKidney stone formers can have higher oxalate and phosphate salt amounts in their urine than healthy people and we hypothesized that its acidification may be useful. The study aims to compare results of urine concentrations of calcium, magnesium, and inorganic phosphorus in the midstream portion of first voided morning urine samples without (FMU) and with post-collection acidification (FMUa) in kidney stone patients.Materials and methodsThis is a prospective single center study. A total of 138 kidney stone patients with spot urine samples were included in the study. Urine concentrations of calcium, magnesium and inorganic phosphorus were measured with and without post-collection acidification. Acidification was performed by adding 5 µL of 6 mol/L HCl to 1 mL of urine.ResultsThe median age (range) of all participants was 56 (18-87) years. The median paired differences between FMU and FMUa concentrations of calcium, magnesium, and inorganic phosphorus were: - 0.040 mmol/L, 0.035 mmol/L, and 0.060 mmol/L, respectively. They were statistically different: P < 0.001, P < 0.001, P = 0.004, respectively. These differences are not clinically significant because biological variations of these markers are much higher.ConclusionsNo clinically significant differences in urinary calcium, magnesium, and inorganic phosphorus concentrations between FMU and FMUa in patients with kidney stones were found.  相似文献   

On the use of ASTM closed vessel tests in accelerated ageing research     

Tomasz Sawoszczuk  Andrzej Bara&#x;ski  Janusz Marek &#x;agan  Tomasz &#x;ojewski  Katarzyna Zi&#x;ba 《Journal of Cultural Heritage》2008,9(4):401-411

The ASTM D6819-02e3 standard for testing the accelerated ageing of paper, published in 2002, recommends using closed glass vials in order to keep the degradation products in contact with the paper and thus permitting a better simulation of the natural ageing conditions inside closed books. In the present study, the actual conditions and their stability inside closed vessels have been evaluated. The necessity of assuring a very high sealing performance (tightness) of the systems in order to avoid leakage of water vapour is the main drawback of this ageing method. Systematic studies presented in this publication tried to monitor this tightness and have provided data that helped to answer the question of what circumstances could lead to achieving its improvement. Both gravimetric monitoring of water content in vials and “in situ” IR measurements of the aged paper humidity have been applied for this purpose. As a result, better sealing materials (gaskets and caps) than those recommended by the ASTM standard, have been found. Additionally, application of a dynamometric spanner for closing the vials is recommended, as this is a guarantee of reasonably high and recurring tightness of the systems used in tests. Nevertheless, the systematic, linear with time, loss of moisture for all used vials was observed. A 9% loss of the initial moisture content in samples of the aged paper was observed for the tested conditions (14 days at 90 °C). Therefore, it seems that including some kind of gravimetric control for ageing tests performed in closed vessels is of essential importance.Kinetic studies of accelerated ageing in both closed and open systems, as monitored by DP and breaking length measurements, unexpectedly show that no statistically meaningful difference of degradation rates can be observed. On the other hand, the pH and whiteness index values reveal a meaningful difference between the rates of ageing in these systems, thus confirming the basic assumption of the ASTM test concerning the interaction of paper degradation products with the paper itself.  相似文献   

Prediction in economics     

Marek Hudik 《Metascience》2017,26(1):71-74

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Research report     

Ann Cavallo  Jack C. McNeely  Edmund A. Marek 《International Journal of Science Education》2013,35(5):583-603

We examined ninth-grade students' explanations of chemical reactions using two forms of an open-ended essay question during a learning cycle. One form provided students with key terms to be used as 'anchors' upon which to base their essay, whereas the second form did not. The essays were administered at three points: pre-learning cycle, post-concept application, and after additional concept application activities. Students' explanations were qualitatively examined and grouped according to common patterns representing their understandings or misunderstandings. Findings indicated that more misunderstandings were elicited by the use of key terms as compared to the non-use of key terms in the pre-test. Misunderstandings in the key term essay responses generally involved the misuse of these terms and their association with the concept. Findings also indicated significant positive shifts in students' understanding over the learning cycle. No perceptible increase in understanding occurred after additional application activities. Differences in gender were observed, with females showing equal or greater understanding compared to males, contradicting reports that males typically outperform females in the physical sciences and supporting the need to reconstruct assessment techniques to better reveal the conceptual understandings of all students.  相似文献