The paper analyses the indoor environment in two modern intelligent buildings located in Poland. Measurements of air and globe temperatures, relative humidity and carbon dioxide concentration in 117 rooms carried out in the space of 1.5 years were presented. Thermal comfort of the occupants has been investigated using a questionnaire survey. Based on 1369 questionnaires, thermal sensation, acceptability and preference votes were analysed in view of their interdependency as well as their dependency on operative temperature, which proved to be very strong. It has been found that the respondents did not completely rate thermal comfort and indoor environment quality as very high, although the overwhelming sensations were positive. Apart from the operation of heating, ventilation and air conditioning (HVAC) systems, this might have also been the cause of individual human factors, such as body mass index, as tested in the study, or the finding that people were generally in favour of a warmer environment. Moreover, thermal environment proved to be the most important element for ensuring the well-being of the occupants.
Abstracts-Technology acceptance has been studied in different perspectives. Though a few empirical studies on acceptance of Web 2.0 as a social networking tool in teaching and learning exist, none of such studies exist in Nigeria which is the focus of this study. This paper reports on a pilot study that begins to fill this gap by investigating the perceptions, attitude and acceptance of Web 2.0 in e-learning of this country. Based on literature review and initial primary study, a conceptual model of 9 variables and associated hypotheses was designed. The model was operationalised into a questionnaire that was used to collect data from 317 students from 5 universities. The findings that came from data analysis indicate that all the variables except motivation via learning management systems which are not presently used in these universities affect intention to use Web 2.0 in e-learning in Nigeria. Some of the validated variables are perceived usefulness and prior knowledge. The major conclusions and recommendations include the utilisation of Web 2.0 facilities to stimulate participation in learning. This work will contribute to the body of knowledge on acceptance of Web 2.0 social networking tools in teaching and learning. It will aid management decisions toward investing better on technology so as to improve the educational sector. This research will also be beneficial in the social development of individuals, local communities, national and international communities. [13]. It enables the sharing of learning experiences, exchanging of information about the subjects being taught and assessment requirements, and provision of moral support. Web 2.0 technologies provide opportunities for students to construct and share knowledge with each other. Jucevičienė and Valinevičienė [13] concluded in their studies that there are four main factors that determine the adoption of social network usage in higher education: academic service support; student support; social and cooperate learning; and achievement representation. This paper tests three models of acceptance and discusses the acceptance of Web 2.0 technologies in learning. The rest of this paper will present the need for Web 2.0 technologies in education, theoretical framework, method, findings and discussion, and summary and future work. Keywords II. LITERATURE REVIEW A. The Need for Web 2.0 technologies in educationIn order to achieve a better learner centred approach, there is need for education and training institutions to adopt the 21st-century technologies that improve learner engagement among other benefits. Web 2.0 is such a technology and it provides very effective web-based collaborative systems. Being a relatively young technology, a number of issues are yet to be resolved. One of these is its acceptance and use in teaching and learning [6]. However, several studies, for example, Redecker [7] [14], have shown that Web 2.0 social computing tools and application in education and training enhances participatory learning, collaboration, knowledge and informat...
We investigated the influence of traffic-related air pollutants on respiratory function, with a focus on the non-smoking residents of the capital city of Warsaw in Poland, who lived close to busy streets. The results demonstrate that people living in some parts of the city show symptoms of bronchial obstruction over four times more often than those from the control group consisting of the inhabitants of a remote region in eastern Poland, with considerably less air pollution. Using multiple regression models it was shown that, apart from the place of living, the floor the apartment is situated on, the length of residence, allergy, and physical activity are the factors that significantly influence the forced expiratory volume in 1 s (FEV1) and the pseudo-Tiffenau index (FEV1/FVC).
The influence of air pollutants on visibility in Warsaw Agglomeration has been investigated. Following pollutants were considered: PM 10 , SO 2 , NO 2 and O 3 , while meteorological parameters included: air temperatures (mean, minimum, maximum), solar radiation, relative air humidity, rainfall rates and wind speed. Initial analyses were performed with the use of principal component analysis (PCA). In next stages, the logistic regression (LR), the analysis of variance (ANOVA), one-way classification and a model path of generalized regression models (GRM) were applied. PCA analysis showed that in the cold season the visibility index depends on PM 10 , SO 2 , NO 2 and the temperatures: T, T min and T max . In the warm season, the index of visibility is mostly shaped by four elements: O 3 , T, T max and solar radiation. Logistic regression model indicated that in the warm season only two variables are significantly related to visibility: PM 10 and relative humidity of air. Regularities in the cold season shown by the LR correspond with the conclusions from the PCA. Among meteorological conditions, the most important is air temperature, but only T max preserves the same direction of influence as the one pointed by the PCA model.
The research supports the notion that values affect work practices. It develops a comparatively simple organisational cultural model based on four work practices: support orientation, innovation orientation, co-ordination orientation, and rules orientation. For validation, it was operationalised into a 21 item survey questionnaire that mainly used a Likert scale from “strongly agree” to “strongly disagree.” This paper presents the validity and reliability of the items with Cronbach alpha values of between 0.8 and 0.9. Both positive and negative values like trust, honesty, and selfishness affect work practices which are presented as good reflections and measures of organisational culture. The four work practices are reliable and valid reflections of organisational culture. Though not yet extensively tested, the model can be used by IT professionals for assessing IT projects from organisational culture perspective. It also constitutes a useful platform for other research, e.g., effect of organisational culture on knowledge sharing.
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