Trends in research on the possible effects of climate change concerning aquatic ecosystems with special emphasis on the modelling approach

Knowledge on the expected effects of climate change on aquatic ecosystems is defined by three ways. On the one hand, long-term observation in the field serves as a basis for the possible changes; on the other hand, the experimental approach may bring valuable pieces of information to the research field. The expected effects of climate change cannot be studied by empirical approach; rather mathematical models are useful tools for this purpose. Within this study, the main findings of field observations and their implications for future were summarized; moreover, the modelling approaches were discussed in a more detailed way. Some models try to describe the variation of physical parameters in a given aquatic habitat, thus our knowledge on their biota is confined to the findings based on our present observations. Others are destined for answering special issues related to the given water body. Complex ecosystem models are the keys of our better understanding of the possible effects of climate change. Basically, these models were not created for testing the influence of global warming, rather focused on the description of a complex system (e. g. a lake) involving environmental variables, nutrients. However, such models are capable of studying climatic changes as well by taking into consideration a large set of environmental variables. Mostly, the outputs are consistent with the assumptions based on the findings in the field. Since synthetized models are rather difficult to handle and require quite large series of data, the authors proposed a more simple modelling approach, which is capable of examining the effects of global warming. This approach includes weather dependent simulation modelling of the seasonal dynamics of aquatic organisms within a simplified framework.

Hogyan bonthatók le a látható és láthatatlan falak? – Kooperatív kutatás a megváltozott munkaképességűek foglalkoztatásával kapcsolatos mentális gátak lebontásáról (How to break down the visible and unvisible walls? – A cooperative research about the breaking down of mental barriers of the employment of disabled people)

A szerzők tanulmányukban egy kooperatív kutatási projekt eredményeit mutatják be, melyet emberierőforrás- menedzsment szakos master hallgatókkal folytattak megváltozott munkaképességűek foglalkoztatásával kapcsolatban. Magyarországon rendkívül magas a munkanélküliség a fogyatékkal élők körében, és a szerzők úgy vélik, hogy a HR-szakértőknek kulcsfontosságú szerepük van abban, hogy a foglalkoztatási korlátokat fenntartják-e, vagy változtatnak a jelenlegi helyzeten. A kritikai emberierőforrás-fejlesztés és a kritikai pedagógia hagyományait követve kutatásuk kettős célt tűzött ki. Céljuk volt egyrészt a jövő HRszakembereinek megváltozott munkaképességűek foglalkoztatásával kapcsolatos mentális mintázatainak, attitűdjeinek és hiedelmeinek feltárása, amelyek az elnyomás, diszkrimináció vagy kizsákmányolás gyökerei lehetnek. Másrészt pedig a kooperatív kutatás alkalmazásával a hallgatók emancipációját szándékoztak előmozdítani, továbbá az üzleti felsőoktatást uraló pozitivista filozófiát és értékrendszert kívánták kihívás elé állítani, s ily módon segíteni egy kritikusabb világnézet kibontakozását. ________ In this paper we present the results of a cooperative inquiry research project undertaken with Master students specialized in Human Resource Management on the employment of disabled people. Unemployment among people with disabilities is very high in Hungary and HR professionals have a key role in maintaining or reducing employment barriers and modifying the present situation. Following the tradition of critical Human Resource Development and critical pedagogy, the aim of the research project was twofold. First, we aimed to reveal the mental patterns, attitudes and beliefs of future HR professionals to the employment of people with disabilities, which might become roots causes of domination, discrimination or exploitation. Secondly, through applying cooperative inquiry, researchers aimed to emancipate students and challenge the positivist philosophy and value system which usually dominate business education and thereby engender a more critical worldview.

Creating Responsive Information Systems with the Help of SSADM

In this paper, a program for a research is outlined. Firstly, the concept of responsive information systems is defined and then the notion of the capacity planning and software performance engineering is clarified. Secondly, the purpose of the proposed methodology of capacity planning, the interface to information systems analysis and development methodologies (SSADM), the advantage of knowledge-based approach is discussed. The interfaces to CASE tools more precisely to data dictionaries or repositories (IRDS) are examined in the context of a certain systems analysis and design methodology (e.g. SSADM).