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1.
Artur Pawlowski 《Environmental Education Research》1996,2(3):279-285
The perception of environmental problems by young people is of great importance for two reasons: first, in the near future they will have a great influence on the running of business and, second, knowing what they think about environmental issues will help to establish better pro‐environmental education among them. Therefore, studies on the perception of environmental problems among Polish students were undertaken. We intended to characterise and compare the perception of environmental problems by young people from different universities. These were the Environmental Faculty of the University of Maria Curie Sklodowska in Lublin and the Technical Faculty of the Technical University of Lublin. The results of our research showed that students from both schools are aware of environmental problems, but the more pro‐ecological group was students studying protection of the environment. 相似文献
2.
This study reports on the use of a microsystem for evaluation of photodynamic therapy (PDT) procedures on the "mixed" (carcinoma-normal) cultures. Balb/3T3 (normal mouse embryo) and A549 (human lung carcinoma) cells were tested in separated and "mixed" cultures. Interactions and migration of cells cultured together were observed. The PDT procedures were examined in the hybrid (PDMS/glass) microsystem which contains cell culture microchambers integrated with network of microchannels. We investigated that the number of dead cells after PDT procedures is dependent on the kind of cell culture. Moreover, the influence of the carcinoma cells on the viability of normal cells in the "mixed" culture was observed. 相似文献
3.
Diversity has been an important topic of research for some time in higher education, though the purposes underlying this attention have varied across national and regional contexts. In many parts of the world, the term diversity has been emphasized with regard to variety among the programs or services provided by academic institutions, and differences among the types of institutions themselves. It is particularly important to discuss whether different dimensions of diversity may influence the degree of effectiveness of higher education (HE) in fulfilling its contribution and relevance to economic and social development. We are particularly interested in analyzing whether unitary or binary systems present significant differences in different dimensions of diversity that may be relevant to enhance higher education institutions’ (HEIs) contribution to territorial cohesion, notably by enhancing the local stock of human capital and contributing to the social and cultural development of their regions. Therefore, we propose the following research questions: *Are there relevant patterns regarding different dimensions of diversity between unitary and binary HE systems? *In the case of binary systems, is it possible to find relevant differences in different dimensions of diversity between universities and more vocational HEIs? By looking at these questions, we aim at contributing both to the literature on HE institutional diversity and to the study of the role played by HEIs on regional development. 相似文献
4.
Artur Babiarz Adam Czornik Alexander Konyukh Michał Niezabitowski 《Journal of The Franklin Institute》2017,354(13):5131-5144
In this paper, we give the necessary and sufficient conditions for a function f to be a lower Bohl function of a diagonal discrete linear time-varying systems. 相似文献
5.
Donna R. Pawlowski Ph.D. Chad Thilborger B.A. Jode Cieloha‐Meekins B.A. 《Communication Studies》2013,64(3):180-196
This paper is a metaphoric analysis that explores college students’ perceptions of their families in relation to their family of origin, concept of family, and family communication. Metaphors were thematically analyzed and placed in categories of positive, negative and neutral responses given by individuals. Constant comparative method was also used to identify themes and dimensions among the metaphors. Throughout the results, students had an overwhelmingly positive attitude toward their family of origin and the concept of family. Responses about family communication, however, tended to range mainly from a neutral to negative perception. Additional results, implications, and future directions for family communication research are also discussed. 相似文献
6.
The purpose of this study was to explore the association of sibling conflict style (i.e., integrative, distributive, avoidant) with perceived relational communication themes (i.e., immediacy, similarity, receptivity, composure, formality, dominance, equality, task orientation). Participants were 186 undergraduate students who reported on a recent conflict episode with a sibling. Results indicate that (a) siblings who used the relational communication themes of immediacy, similarity, receptivity, composure, and equality reported using the integrative conflict strategy, but not the distributive conflict strategy, and (b) siblings who used the relational communication theme of immediacy and to a lesser extent the theme of task orientation, but not the relational communication themes of similarity and equality, reported not using the avoidant conflict strategy. 相似文献
7.
Donna R. Pawlowski 《Communication Teacher》2013,27(3):69-73
Objective: Students can reflect upon and articulate how they have been shaped by their “standpoints” in life. This assignment allows students to truly see themselves reaching out (understanding others) and reaching in (examining selves) to reflect upon their standpoint in society. Secondary goals are to dispel stereotypes of various standpoints and create more openness in class discussions. Potential courses: Gender Communication, Communication Theory, Cultural Communication, and Introduction to Public Speaking 相似文献
8.
Mikhail Santos Cerqueira Jose Diego Sales Do Nascimento Daniel Germano Maciel Jean Artur Mendonca Barboza Wouber Herickson De Brito Vieira 《运动与健康科学(英文)》2020,9(2):152-159
Purpose:To investigate whether blood flow restriction(BFR) without concomitant exercise mitigated strength reduction and atrophy of thigh muscles in subjects under immobilization for lower limbs.Methods:The following databases were searched:PubMed,CINAHL,PEDro,Web of Science,Central,and Scopus.Results:The search identified 3 eligible studies,and the total sample in the identified studies consisted of 38 participants.Isokinetic and isometric torque of the knee flexors and extensors was examined in 2 studies.Cross-sectional area of thigh muscles was evaluated in 1 study,and thigh girth was measured in 2 studies.The BFR protocol was 5 sets of 5 min of occlusion and 3 min of free flow,twice daily for approximately 2 weeks.As a whole,the included studies indicate that BFR without exercise is able to minimize strength reduction and muscular atrophy after immobilization.It is crucial to emphasize,however,that the included studies showed a high risk of bias,especially regarding allocation concealment,blinding of outcome assessment,intention-to-treat analyses,and group similarity at baseline.Conclusion:Although potentially useful,the high risk of bias presented by original stodies limits the indication of BFR without concomitant exercise as an effective countermeasure against strength reduction and atrophy mediated by immobilization. 相似文献
9.
This article presents the pseudo-equivalent group approach and discusses how it can enhance the quality of linking in the presence of nonequivalent groups. The pseudo-equivalent group approach allows to achieve pseudo-equivalence using propensity score reweighting techniques. We use it to perform linking to establish scale concordance between two assessments. The article presents Monte-Carlo simulations and a real data application based on data from the Survey of Adult Skills (PIAAC) and the Programme for International Student Assessment (PISA). Monte-Carlo simulations suggest that the pseudo-equivalent group design is particularly useful whenever there is a large overlap across the two groups with respect to balancing variables and when the correlation between such variables and ability is medium or high. The example based on PISA and PIAAC data indicates that the approach can provide reasonable accurate linking that can be used for group-level comparisons. 相似文献
10.
Elzbieta Jastrzebska Ilona Grabowska-Jadach Michal Chudy Artur Dybko Zbigniew Brzozka 《Biomicrofluidics》2012,6(4)
Cell migration is an important physiological process, which is involved in cancer metastasis. Therefore, the investigation of cell migration may lead to the development of novel therapeutic approaches. In this study, we have successfully developed a microsystem for culture of two cell types (non-malignant and carcinoma) and for analysis of cell migration dependence on distance between them. Finally, we studied quantitatively the influence of photodynamic therapy (PDT) procedures on the viability of pairs of non-malignant (MRC5 or Balb/3T3) and carcinoma (A549) cells coculture. The proposed geometry of the microsystem allowed for separate introduction of two cell lines and analysis of cells migration dependence on distance between the cells. We found that a length of connecting microchannel has an influence on cell migration and viability of non-malignant cells after PDT procedure. Summarizing, the developed microsystem can constitute a new tool for carrying out experiments, which offers a few functions: cell migration analysis, carcinoma and non-malignant cells coculture, and evaluation of PDT procedure in the various steps of cell migration. 相似文献