Statistika RUNG

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Opis: This thesis represents a comprehensive study, giving first extensive information on the hydrogeological and speleological characteristics of the spring cave Slatinski Izvor and its catchment area. The researched spring is located in the Poreče basin of West-Central Macedonia, in the river valley of Slatinska Reka. The wider area around the spring belongs to two tectonic units. The Slatinski Izvor spring is situated on the Pelagonian horst anticlinorium, which is composed of carbonate rocks. The second is the Western Macedonian zone, and it is composed of non-carbonate rocks. The spring represents a significant potential for water supply for the settlement Slatina. Prior to this research only some basic information about the karst aquifer in Precambrian dolomite marbles was available. Therefore, my goal was to ensure better understanding of the functioning of the karst system in the recharge area of the spring, assessment of its vulnerability to various pollution sources, as well as study of karst development of the area. Because karst aquifers have unique hydrogeological characteristics and specific nature, they also require specifically adapted investigation methods. In order to reach the main goal, speleological investigations, hydrological methods, hydrochemical methods and tracer test were used. A monitoring network was combined with regular samplings for major and trace elements analysis, which enabled considerable advances in understanding the functioning of the karst system. The data from two-year period (December 2011 – November 2013) was compared and analyzed. The controlling of the karst development in the study area mostly depends on the tectonic and geologic conditions. Incision of Slatinska Reka is the main controlling factor in cave development by lowering the base level of karst terrains. All investigated caves (Gorna Slatinska, Slatinska II, Ovčarska Peštera, Puralo, Slatinski Izvor) have “normal” epigenic karst development. Slatinski Izvor is the youngest cave. The Slatinski Izvor spring serves as a cave entrance for the same cave and, represents the outflow of groundwater from the karst system. A conceptual model of the karst system of the study area was developed. The Slatinski Izvor spring has typical karst hydrological regime. The karst system is well developed by conduits and rains infiltrated into vadose zone flow rapidly towards the spring. The travel time of low mineralized water within the system corresponds well with the results from an artificial tracer test. Performed artificial tracer test confirmed that the Slatinski Izvor spring is recharged by allogenic stream. The dominant apparent flow velocity of 250 m/h, a single peak of the tracer breakthrough curve and more than 87% of tracer recovered indicate a rapid conduit flow and high vulnerability of the observed drinking water source. Analysis of spatial and temporal variations of physical and chemical parameters show that waters in the study area had different origin and were transmitted along different flow paths. The origin of the water of the Slatinski Izvor spring is from non-carbonate area, but the influence of mixed limestone-dolomite sequence in the carbonate area is significant. The results point out to short residence time of the water in the karst aquifer. The anthropogenic impact in the study area is insignificant which is reflected in the good water quality. In order to preserve it, land surface zoning was performed in terms of groundwater and spring water vulnerability to pollution according to the hydrogeological research. A comprehensive research with a combined use of various research tools presents an innovative approach and a new contribution to the Macedonian karstological science. Applied methods proved to be successful for to study of the karst system. Finally, the results of the study have clear applicative significance in terms of drinking water management.
Ključne besede: karst hydrology, cave, speleological investigation, hydrochemistry, tracer test, spring Slatinski Izvor
Objavljeno: 14.10.2016; Ogledov: 5307; Prenosov: 46
Polno besedilo
Ogledov v tednu: 955

Ključne besede: kozmični žarki, astrofizika, observatoriji, detektorji,
Objavljeno: 15.10.2013; Ogledov: 4077; Prenosov: 11
Polno besedilo
Ogledov v tednu: 947

Ključne besede: migracije, mobilnost,
Objavljeno: 15.10.2013; Ogledov: 3189; Prenosov: 217
Polno besedilo
Ogledov v tednu: 123

Opis: We test the hypothesis that children acquire knowledge of the successor function — a foundational principle stating that every natural number n has a successor n + 1 — by learning the productive linguistic rules that govern verbal counting. Previous studies report that speakers of languages with less complex count list morphology have greater counting and mathematical knowledge at earlier ages in comparison to speakers of more complex languages (e.g., Miller & Stigler, 1987). Here, we tested whether differences in count list transparency affected children’s acquisition of the successor function in three languages with relatively transparent count lists (Cantonese, Slovenian, and English) and two languages with relatively opaque count lists (Hindi and Gujarati). We measured 3.5- to 6.5-year-old children’s mastery of their count list’s recursive structure with two tasks assessing productive counting, which we then related to a measure of successor function knowledge. While the more opaque languages were associated with lower counting proficiency and successor function task performance in comparison to the more transparent languages, a unique within-language analytic approach revealed a robust relationship between measures of productive counting and successor knowledge in almost every language. We conclude that learning productive rules of counting is a critical step in acquiring knowledge of recursive successor function across languages, and that the timeline for this learning varies as a function of count list transparency.
Ključne besede: Cross-linguistic Count list Successor function Natural number concepts Number acquisition Conceptual development
Objavljeno: 05.01.2020; Ogledov: 111; Prenosov: 0
Polno besedilo
Ogledov v tednu: 53

Opis: Prispevek predstavlja Prešernovo trpeče življenje in razloge zanj, predvsem pa njegovo kanonsko pot od nesvetniškega življenja do položaja kulturnega svetnika številka ena. Pri tem opozarja na svež pristop Nede Rusjan Bric v dramskem besedilu Dr. Prešeren. Sledijo prikaz cenzure Prešernovih pesmi, njihove moralne spornosti v drugi polovici 19. stoletja, humornega Prešerna in Jenka, ki ni hotel biti Prešeren.
Ključne besede: France Prešeren, kulturni svetnik, kanonizacija, dramatika, Neda Rusjan Bric, Prešernovo gledališče Kranj, Anton Janežič, Krst pri Savici, srednješolska berila, Anton Mahnič, ljubezenske pesmi, Rimski katolik, Sveti Senan, parodija, Simon Jenko, Ognjeplamtič, Nezakonska mati, Prešernov gaj
Objavljeno: 05.01.2020; Ogledov: 89; Prenosov: 0
Polno besedilo
Ogledov v tednu: 52