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Encyclopedia of complexity and systems science
slovar, enciklopedija, leksikon, priročnik, atlas, zemljevid

Opis: Encyclopedia of Complexity and Systems Science provides an authoritative single source for understanding and applying the concepts of complexity theory together with the tools and measures for analyzing complex systems in all fields of science and engineering. The science and tools of complexity and systems science include theories of self-organization, complex systems, synergetics, dynamical systems, turbulence, catastrophes, instabilities, nonlinearity, stochastic processes, chaos, neural networks, cellular automata, adaptive systems, and genetic algorithms. Examples of near-term problems and major unknowns that can be approached through complexity and systems science include: The structure, history and future of the universe; the biological basis of consciousness; the integration of genomics, proteomics and bioinformatics as systems biology; human longevity limits; the limits of computing; sustainability of life on earth; predictability, dynamics and extent of earthquakes, hurricanes, tsunamis, and other natural disasters; the dynamics of turbulent flows; lasers or fluids in physics, microprocessor design; macromolecular assembly in chemistry and biophysics; brain functions in cognitive neuroscience; climate change; ecosystem management; traffic management; and business cycles. All these seemingly quite different kinds of structure formation have a number of important features and underlying structures in common. These deep structural similarities can be exploited to transfer analytical methods and understanding from one field to another. This unique work will extend the influence of complexity and system science to a much wider audience than has been possible to date.
Ključne besede: cellular automata, complex networks, computational nanoscience, ecological complexity, ergodic theory, fractals, game theory, granular computing, graph theory, intelligent systems, perturbation theory, quantum information science, system dynamics, traffic management, chaos, climate modelling, complex systems, dynamical sistems, fuzzy theory systems, nonlinear systems, soft computing, stochastic processes, synergetics, self-organization, systems biology, systems science
Objavljeno: 01.06.2012; Ogledov: 1641; Prenosov: 85
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PCA - a powerful method for analyze ecological niches
Franc Janžekovič, Tone Novak, 2012, samostojni znanstveni sestavek ali poglavje v monografski publikaciji

Ključne besede: principal component analysis, ecology, environment, biology
Objavljeno: 07.06.2012; Ogledov: 1315; Prenosov: 93
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False reality or hidden messages: reading graphs obtained in computerized biological experiments
Andrej Šorgo, Slavko Kocijančič, 2012, izvirni znanstveni članek

Opis: Information and communication technology (ICT) has become an inseparable part of schoolwork and a goal of education to prepare scientifically literate and digitally competent citizens. Yet the introduction of computers into school work has been much slower than its introduction in other spheres of life. Teachers' lack of knowledge/skills and difficulty in integrating ICT into instruction affect the realization of computer-related goals in schools. Another hidden obstacle that can affect the introduction of computers into the Biology laboratory can be discomfort with the interpretation of graphs obtained by data-loggers. We can group these difficulties with graph outcomes into 4 areas: 1) Explanations of the curves that lie beyond the domain of Biology, in Physics, Chemistry or some other discipline; 2) Hardware properties; 3) Unknown properties of experimental components; 4) Occasional equipment breakdowns or crashes.
Ključne besede: education, biology, biology teaching, computer-supported laboratory, ICT, laboratory work
Objavljeno: 07.06.2012; Ogledov: 1134; Prenosov: 47
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Development of basic competences in science and technology in minorities with language-independent computer simulations
Miro Puhek, Andrej Šorgo, 2011, izvirni znanstveni članek

Opis: With the growth of multimedia computers became more important than ever. Internet became linking media that connects people. But circumstances are far from being perfect. On one hand, we have circumstances similar to those in Eden, where students can use various didactical tools, and on the other, students are still left with the white chalk and black board. The main purpose of this article is to present the problem of accessibility of multimedia to users that have limited knowledge of foreign language (in most cases English). On the Faculty of Natural Sciences and Mathematics we developed interactive computer simulations of biological laboratory exercises. Simulations are equipped with translational support that enables users a translation into a chosen foreign language. The simulations Osmosis and Greenhouse effect are presented in this article and can be used by minorities in Slovenia as well as by anybody else who is not fluent in Slovenian language.
Ključne besede: education, biology, computer science, computerized laboratory
Objavljeno: 07.06.2012; Ogledov: 1100; Prenosov: 15
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In search of good science teaching with hands-on and minds-on computer-supported activities
Andrej Šorgo, 2011, objavljeni znanstveni prispevek na konferenci

Opis: In maximizing the effect of emerging technologies pre-service teachers should receive assistance in building complex knowledge of how to meaningfully integrate content, pedagogy and technology into the construct of Technological Pedagogical Content Knowledge (PCTK). Teaching by design was found to be a promising strategy in order to support prospective teachers in finding ways to introduce hands-on and mind-on computer-supported activities into their teaching practice.
Ključne besede: education, science, biology teaching, computer-supported learning
Objavljeno: 07.06.2012; Ogledov: 1352; Prenosov: 27
URL Povezava na celotno besedilo

Information and communication technologies (ICT) in biology teaching in Slovenian secondary schools
Andrej Šorgo, Tatjana Verčkovnik, Slavko Kocijančič, 2010, izvirni znanstveni članek

Opis: About two-thirds of Slovene secondary schools received computers equipped with dataloggers and sensors to be used in teaching Physics, Chemistry and Biology. Later it was recognized that only a couple of Biology teachers were using the donated equipment in their classrooms or laboratories. The questionnaire, intended to investigate the situation, was posted to schools which had received a donation. Based on the answers, it was possible to assign computer applications from one of the three groups. In the first group were these applications (word processing, e-mail and internet use) towards which teachers have positive attitudes and that they do use for school work. The common element is that teachers can work at home and then use the materials in the classroom. In the second group were applications (presentations, use of data loggers, computer programmes and virtual laboratory) towards which attitudes are positive, but which teachers do not use because of the overloaded curriculum, lack of equipment, and inappropriate training. In the third group are applications (computer games and programming), about which attitudes are negative and which teachers do not use. The introduction of such applications into teaching is at the moment far from realistic.
Ključne besede: education, biology, biology teaching, computers, ICT, secondary schools
Objavljeno: 07.06.2012; Ogledov: 1368; Prenosov: 55
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Lower secondary school students' attitudes toward computer-supported laboratory exercises
Andreja Špernjak, Miro Puhek, Andrej Šorgo, 2010, izvirni znanstveni članek

Opis: In Science teaching laboratory work is recognized as one of the cornerstones. In school science laboratory work computers can be used as computer supported laboratory (real) and as virtual laboratory. In the first case "real" laboratories involve bench top experiments utilizing data acquisition systems while "virtual" laboratory entails interactive simulations and animations. Lower secondary school students in age between 11 and 15 performed three laboratory exercises (Activity of yeast, Gas exchange in breathing, Heart rate) as classic, computer-supported and virtual laboratory. As a result of testing we know that all three methods are suitable even for younger students. When they were asked which method they liked the most, their first choice was computer-supported laboratory, followed by classic laboratory, and virtual laboratory at the end. Additionally recognized weak and strong sides of used methods are discussed.
Ključne besede: education, biology, computer-supported laboratory, simulations, secondary schools
Objavljeno: 07.06.2012; Ogledov: 1367; Prenosov: 64
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Structure of the Malpighian tubule cells and annual changes in the structure and chemical composition of their spherites in the cave cricket Troglophilus neglectus Krauss, 1878 (Rhaphidophoridae, Saltatoria)
Saška Lipovšek Delakorda, Ilse Letofsky-Papst, Tone Novak, Ferdinand Hofer, Maria Anna Pabst, 2009, izvirni znanstveni članek

Opis: Periodical changes in the structure of spherites in the Malpighian tubule cells of the cave cricket Troglophilus neglectus were studied to elucidate their role during the cricket's life cycle in natural circumstances. Special interest was given to the dormant overwintering period when we hypothesized that the primary role of spherites is to supply minerals for basic vital processes. The investigation was carried out by light and transmission electron microscopy, energy dispersive X-ray spectroscopy, electron energy-loss spectroscopy and energy-filtering TEM. Spherites are present only in the middle Malpighian tubule segment, consisting of Type 1 cells, characterized, among other features, by a round, apically placed nucleus and numerous spherites, and a few Type 2 cells with an elongated nucleus in the centre and sparse spherites. At the beginning of dormancy in November juveniles, minerals are accumulated in spherites and then decline until March.In one-year-old May larvae, spherites are commonly rich in minerals, and from July onwards they are progressively exploited in the adults. Spherite destruction starts with apoptosis in senile October individuals. The findings suggest that the mineral supply of spherites in Malpighian tubules is crucial to supporting vital processes throughout the life cycle of T. neglectus.
Ključne besede: biology, zoology, cells, spherites, insects, Troglophilus neglectus, analysis
Objavljeno: 07.06.2012; Ogledov: 1314; Prenosov: 68
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Exocytosis of insulin in vivo maturation of mouse endocrine pancreas
Aldo Rozzo, Tiziana Meneghel-Rozzo, Saška Lipovšek Delakorda, Shi-Bing Yang, Marjan Rupnik, 2009, objavljeni znanstveni prispevek na konferenci

Opis: The aim of this study was to define when an insulin-positive cell becomes functional in vivo and starts to exocytose insulin in a regulated nutrient-dependent manner. Insulin-positive cells appear in embryonic life (midgestation) and complete their maturation, presumably around birth. In order to work with embryonic and newborn endocrine pancreas, we used organotypic slices. The mouse embryonic pancreas slices show high basal insulin release that is not further elevated by high glucose levels. Despite the presence of functional voltage-activated ion channels, the cells are not electrically active in the presence of secretagogues. At birth, the high basalinsulin release drops and, after postnatal day 2, the insulin-positive cells show both adult-like bursting electrical activity and hormone release induced by high glucose levels. These properties allowed us to define them as beta cells. Despite the apparent stability of the transcription factor profile reported in insulin-positive cells during late-embryonic life, functional beta cells appear only 2 days after birth.
Ključne besede: cell biology, insulin release, embrios, newborn, beta-cell maturation, developing pancreas
Objavljeno: 07.06.2012; Ogledov: 813; Prenosov: 17
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The journey of a sandwich: computer-based laboratory experiments about the human digestive system in high school biology teaching
Andrej Šorgo, Zdravka Hajdinjak, Darko Briški, 2008, izvirni znanstveni članek

Opis: Teaching high school students about the digestive system can be a challenge for a teacher when s/he wants to overcome rote learning of facts without a deeper understanding of the physiological processes inside the alimentary tract. A series of model experiments illustrating the journey of a sandwich was introduced into teaching high school biology. Using a computer equipped with a commercially available data-acquisition system and a couple of sensors,it was possible to illustrate the basic underlying physical and chemical principles of digestion to the students. Students were able to investigate, through hands-on activities, the chewing force of the jaws, importance of the mechanical breakdown of food, enzymatic activity of pepsin and amylase, antibacterial activity of hydrochloric acid, and importance of the villi for absorption. Students found the experiments interesting and helpful for understanding the digestive process. Furthermore, the results fromtesting indicated that the students had a deeper understanding of the physiological processes.
Ključne besede: education, biology, high schools, data logging
Objavljeno: 07.06.2012; Ogledov: 966; Prenosov: 96
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