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Search Results: 1 - 10 of 763 matches for " Andrej alehar "
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Med imurje horse population in Slovenia
Klemen Poto nik, Mojca Sim i , Angela Cividini, Andrej alehar, Matja Mesari , Janez Rus, Tatjana Kavar, Peter Dov
Acta agriculturae Slovenica , 2011, DOI: 10.2478/v10014-011-0027-3
Abstract: In the nineteenth and early twentieth century the Med imurje horse played an important role as a draft and working horse in the river Mura region. Nowadays, this area is split between Hungary, Austria, Slovenia and Croatia. In the frame of the project "Management of traditional transboundary breeds on example of a nearly forgotten breed the Murinsulaner", we collected data for cold blooded horses similar to the Med imurje horse. Horses of this type do not exist in Austria anymore, in Croatia they were registered as an authothonous breed Medjimurje horse , and in Slovenia and Hungary this horse has a special section in the stud book for cold blooded horses as a Med imurje type of horse. The Slovenian part of the population of the Med imurje horse is quite heterogeneous regarding body measures. With respect to the scoring system used in the above mentioned project, the majority of scored animals were classified as desired or satisfactory . In order to further develop or to preserve this type of horse or to form a consolidated breed we would have to make a breeding program which would prevent mating among related animals and to cooperate with neighbouring countries in the field of breeding and selection. The only hope to preserve this type of horse on the long term in the region is by using it as a tourist attraction for carriage riding and/or as a draft horse in agriculture in marginal regions.
Antigen expression on recurrent meningioma cells
Andrej Vranic
Radiology and Oncology , 2010, DOI: 10.2478/v10019-010-0028-6
Abstract: Introduction. Meningiomas are intracranial brain tumours that frequently recur. Recurrence rates up to 20% in 20 years for benign meningiomas, up to 80% for atypical meningiomas and up to 100% for malignant meningiomas, have been reported. The most important prognostic factors for meningioma recurrence are meningioma grade, meningioma invasiveness and radicality of neurosurgical resection. The aim of our study was to evaluate the differences in antigenic expression on the surface of meningioma cells between recurrent and non-recurrent meningiomas. Methods. 19 recurrent meningiomas and 35 non-recurrent meningiomas were compared regarding the expression of MIB-1 antigen, progesterone receptors, cathepsin B and cathepsin L, using immunohistochemistry. Results. MIB-1 antigen expression was higher in the recurrent meningioma group (p=0.001). No difference in progesterone receptor status between recurrent and non-recurrent meningiomas was confirmed. Immunohistochemical intensity scores for cathepsin B (p= 0.007) and cathepsin L (p<0.001) were both higher in the recurrent than in the non-recurrent meningioma group. Conslusions. MIB-1 antigen expression is higher in recurrent compared to non-recurrent meningiomas. There is no difference in expression of progesterone receptors between recurrent and non-recurrent meningiomas. Cathepsins B and L are expressed more in recurrent meningiomas.
In vivo dosimetry with diodes in rectal cancer patients
Andrej Strojnik
Radiology and Oncology , 2007, DOI: 10.2478/v10019-007-0031-8
Abstract: Background. Success of radiotherapy relies on accurate dose delivery. In vivo dosimetry improves control of treatment quality. Patients and methods. In vivo dosimetry with commercial diodes was performed in 209 rectal cancer patients treated with four-field box technique. The diodes measured either entrance or exit dose in each treatment field. The results were compared to the planned values and the dose delivered to the isocenter was calculated. Tolerance levels were set to 5% for entrance dose and 8% for exit dose. Results. 421 entrance dose and 415 exit dose measurements were performed. The average difference from expected values was 0.9% for entrance dose (SD 2.1%) and -0.5% for exit dose (SD 3.3%). In 209 patients, the average absorbed dose in the isocenter differed from the planned values by 0.2% (SD 1.4%). Measurement results exceeded the tolerance levels in two patients. Conclusion. Smaller standard deviation of absorbed dose to the isocenter (1.4%), compared to those of entrance (2.1%) and exit dose measurements (3.3%), confirms a correlation between the entrance and exit dose deviations of pairs of opposed fields. The fact that during this study in vivo dosimetry exposed two cases of potentially inaccurate treatments proves its necessity.
In search of the shortest regimen: fractionation of a fully isoeffective combination of hyperfractionated and hypofractionated treatment
Andrej Strojnik
Radiology and Oncology , 2008, DOI: 10.2478/v10019-008-0011-7
Abstract: Purpose. To analyze the possibility of reducing the number of fractions but maintaining the full biological effect of radiotherapy by varying the dose per fraction. Methods. An arbitrary treatment with a constant dose per fraction is substituted for a fully isoeffective combination of a hyperfractionated and hypofractionated treatment. The number of fractions of the combined treatment is derived. All calculations are based on the linear-quadratic model. Conclusions. Standard uniform fractionation requires the fewest fractions. Any variation in dose per fraction increases the number of fractions of a fully isoeffective treatment.
Field gamma-ray spectrometer GS256: measurements stability
Andrej Mojze
Contributions to Geophysics and Geodesy , 2009, DOI: 10.2478/v10126-009-0003-7
Abstract: The stability of in situ readings of the portable gamma-ray spectrometer GS256 during the field season of 2006 was studied. The instrument is an impulse detector of gamma rays based on NaI(Tl) 3" × 3" scintillation unit and 256-channel spectral analyzer which allows simultaneous assessment of up to 8 radioisotopes in rocks. It is commonly used in surface geophysical survey for the measurement of natural 40K, 238U and 232Th but also artificial 137Cs quantities. The statistical evaluation is given of both repeated measurements - in the laboratory and at several field control points in different survey areas. The variability of values shows both the instrument stability and also the relative influence of some meteorological factors, mainly rainfalls. The analysis shows an acceptable level of instrument measurements stability, the necessity to avoid measurement under unfavourable meteorological conditions and to keep detailed field book information about time, position and work conditions.
From a satisfied to the successful library user: conceptual and methodological elements of users research
Andrej Pinter
Knji?nica : Revija za Podro?je Bibliotekarstva in Informacijske Znanosti , 2004,
Abstract: This paper deals with a specific segment of libraries’ activities which has been much exposed recently – the user. For the library of today, opinions of its users are no longer a curiosity; they are an important aspect of its research activities and also of its administrative practices. The purpose of this paper is thus twofold: to outline a broader framework of library users research and to discuss selected dilemmas that commonly arise in this framework. As users research has become a prominent activity in the international arena and has also established itself in Slovenia, the paper comments on most popular measurement instruments for library users research (SERVQUAL, LibQUAL+) and also on the ways of defining key dimensions of users’ perceptions of the library service. Special attention is placed on a systematic distinction between the concept of library service quality and users’ satisfaction. This is an important conceptual dilemma which also affects research methodology. The concluding part of the paper presents and empirical analysis of the relation between the selected dimensions of users’ satisfaction and their success in searching for desired library materials. This problem is conceptually extracted from contemporary debates about the results of users’ research, whereas in practical terms it derives from the context of one of the public libraries in Ljubljana.
Definition of the criteria of quality and difficulty of literature in public libraries
Andrej Pogorelec
Knji?nica : Revija za Podro?je Bibliotekarstva in Informacijske Znanosti , 2006,
Abstract: Public libraries are supposed to provide a wide range of literary materials of all difficulty levels to their users. Here we encounter a dilemma whether it is possible to establish difficulty and quality also as a criterion of systematic classification of literature. In order to get and answer to that dilemma, it is necessary to define the relation between quality and difficulty, as well as the level of possible objective evaluation of literature in accordance with such criteria. Any eventual introduction of such literature classification criteria should be also discussed from the point of view of library management.
One book too many
Andrej Blatnik
Knji?nica : Revija za Podro?je Bibliotekarstva in Informacijske Znanosti , 2008,
Abstract: The article is exploring the changes in the communication value of Slovenian book after the year 1991. The shifted (self)understanding of the publishing business going from activity of ‘special social importance’to explicitly profit-making activity has not only changed the ways of book production, but also the products themselves. This has influenced also those factors in the communication circuit of the book which still belong to the public sector. Following the example of two bestsellers published in 2008,the author points out the differences in public and market functioning of structurally same books and emphasizes the importance of a conscious choice which positions the adequate product into the communication circuit of the book.
Libraries as formative determinants of the public: a perspective of contemporary theories
Andrej Pinter
Knji?nica : Revija za Podro?je Bibliotekarstva in Informacijske Znanosti , 2002,
Abstract: Due to the nature of their services and pursuit of public interest, libraries have always been an important segment of public life. They have performed such a role in the past quite remarkably, but the question is to what extent are they able to contribute to the formation of attention which one should like to observe in the contemporary public?Or from another angle, the question is – what is the role that contemporary theories of the public attribute to libraries; how do they model the contribution that libraries may have in the formation and activity of the public. In this respect, the paper sets up a broader theoretical perspective in which it addresses issues about what or where is the public, what is the public as a social category, and to what extent can libraries themselves be seen as parts of their own public(s). One of the main aims of this paper is to show that any practical dilemma will remain unsolved if it is not regarded within a wider perspective “ajared” by the theories of the public. On could summarize this aim with the following question: what role does the library play in the formation and operation of the public? Although it may seem that in the present context it is primarily the libraries who are in search of their public, it is far more important to recognize,however, that the contemporary public is even more dependent on libraries as dynamic information centers. There exists a complex and mutual relation of interdependence between libraries and the public. Similarly as libraries need a public that is active,investigative and vocal, also the public requires a library that is as systematic,accessible, organized and instructive as possible.
Some large dolines in the Dinaric karst
Kranjc Andrej
Speleogenesis and Evolution of Karst Aquifers , 2006,
Abstract: The main characteristics of the Dinaric karst are all kind of depressions, not only poljes and dolines, but also collapse dolines and similar forms. Some examples of such forms of large dimensions are located on the higher karst plateaus (Pokljuka, Jelovica, Sne nik in Slovenia), on the contact karst ( kocjanske Jame), on the levels above poljes (Crveno Jezero above the Imotsko Polje), and behind large karst springs (Un ka Koli evka above the springs of Malni). Slovene terms for karst depressions are defined.
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