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Search Results: 1 - 10 of 1821 matches for " Milo? Gregor "
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The usage possibilities of HydroOffice 2010 software for hydrologists and hydrogeologists
MiloGregor
Acta Geologica Slovaca , 2011,
Abstract: The software development is an important part of hydrological and hydrogeological research and development. The software development increases simplification and effectivity, mainly at the frequently repeated tasks. This paper introduces the usage possibilities of the new developed software tool named HydroOffice in version 2010. This tool includes teen modules with a few hundreds of functions. The main functionality is focused on time-series processing and analyzing, hydrological and statistic analysis, drought assessment, runoff components separation and analysis, 3D spatial and temporal water infiltration modelling and one-dimensional river solute transport modelling tool with inflow and storage.
Construction of Master Recession Curve Using Genetic Algorithms
Milo Gregor, , Peter Malík
Journal of Hydrology and Hydromechanics , 2012, DOI: 10.2478/v10098-012-0001-8
Abstract: The article describes a new methodology of using genetic algorithms to assemble a natural time series of discharge recession, from which a master recession curve can be interpreted both for streams and for springs. Presented approach can avoid obstacles such as limited time-series datasets, incomplete recessions or too many recessionary segments in many recession series, different time intervals of observations (daily or weekly frequencies). Short time-series intervals, imprecise or mistaken measurements and different types of datasets (averaged or directly measured data) are taken into account as well. Even rough measurements of discharges with inaccurate sensing range can be analysed, if sufficiently long observation is available. Complicated hydrograph shapes in the case of e.g. karstic springs (often caused by combination of laminar and turbulent discharge sub-regimes due to karst network settings) can be processed as well. Subsequent construction of master recession curve is much easier an offers better conditions for its interpretation. Presented algorithm was already implemented to a programme solution, completed on the user form.
Absolute Velocity and Total Stellar Aberration  [PDF]
Milo? ?ojanovi?
Journal of Applied Mathematics and Physics (JAMP) , 2018, DOI: 10.4236/jamp.2018.65090
Abstract: It is generally accepted that stellar annual or secular aberration is attributed to the changes in velocity of the detector. We can say it in a slightly different way. By means of the all known experiments, stellar aberration is directly or indirectly detectable and measurable, only if a detector changes its velocity. Our presumption is that stellar aberration is not caused by the changes in the velocity of the detector. It exists due to the movement of the detector regarding to an absolute inertial frame. Therefore it is just the question of how to choose such a frame. In this paper it is proposed a method to detect and measure instantaneous stellar aberration due to absolute velocity. We can call it an “absolute” stellar aberration. Combining an “annual” and an “absolute” we can define a “total” stellar aberration.
Stellar Distance and Velocity  [PDF]
Milo? ?ojanovi?
Journal of Applied Mathematics and Physics (JAMP) , 2019, DOI: 10.4236/jamp.2019.71016
Abstract: In this paper, a method is presented by which it is possible to determine a distance between the sun and a star as well as a velocity at which the star moves relative to the sun. In order to achieve this, it is sufficient to know three positions of the star and the unit vectors determined by the star and three arbitrarily chosen points that do not lie on a single line. The method has been tested using the data generated by a computer program as well as real data obtained by Gaia mission. In the first case, we found the huge differences comparing the results derived by the method to the results calculated by the traditional parallax method. In the second case also, there are large differences between the obtained and the expected results, but primarily because of the form of the input data, that is not fully suited to the proposed method. Under certain conditions, one would be able to find a velocity at which the sun is moving regarding a stationary coordinate system (K) that will be defined later on.
The World’s under Five Population—Do We Really Have Good Data of Its Size in Medicine?  [PDF]
Gregor Pollach
International Journal of Clinical Medicine (IJCM) , 2014, DOI: 10.4236/ijcm.2014.510081
Abstract:

Background: “Forensic auditing” opened a new way to monitor demographic data. Benford’s law explains the frequency distribution in naturally occurring data sets. We applied this law to data of the world’s population under five. This number is extremely important in paediatrics and public health. Methodology: Benford’s law states that the probability of a leading occurring number d (d {1,···,9}) can be calculated through the following equation: P(d) = log10(d + 1) – log10(d) = log10(1 + 1/d). We compared the observed and expected values. To examine statistical significance, we used the Chi-square test. Results: Chi-square for the population younger than five years is 22.74 for 2010, 22.97 for 2011 and 11.35 for 2012. For all years combined it is 47.6. Because chi-square was higher than the cut-off value, it must lead to the rejection the null hypothesis. In 2014 chi-square is 11.73 for the first digit. Chi-square being lower than the cut off value of the null hypothesis is accepted. The acceptance of the null hypothesis for 2014 means that the numbers follow Benford’s law for 2014. The rejection of the null hypothesis means that the numbers observed in the publication are not following Benford’s law. The explanations can be reached from operational discrepancies to psychological challenges or conscious manipulation in the struggle for international funding. Conclusion: The knowledge of this mathematical relation is not used widely in medicine, despite being a valuable and quick tool to identify datasets needing closer scrutiny.

A Case of Meningitis? What’s Your Diagnosis?  [PDF]
Pollach Gregor, Kampondeni Sam
Open Journal of Modern Neurosurgery (OJMN) , 2012, DOI: 10.4236/ojmn.2012.24014
Abstract: The five year old, somnolent girl from Mozambique with no medical history was presented with fever, neckstiffness, headaches, an almost complete paraplegia and a septic picture. Malaria parasites and HIV testing was negative. The lumbal puncture revealed staphylococcus. Subsequently a MRI scan showed no sign of meningitis but an extensive posterior epidural collection from C3 to the level of S1. Moreover it showed a vertebral osteomyelitis at L1. Bacteria in CSF were seen as an artefact and the child was treated by multilevel (purely) epidural punctures with drainage, rinsing and instillation of ceftriaxon. The epidural puncture proved acid fast bacilli in the pus, so that an anti-tuberculotic therapy was given. The child recovered quickly from sepsis and was able to walk several steps without help after three months.
The Role of Oxidative Stress on the Pathogenesis of Graves' Disease
Milo? ?arkovi?
Journal of Thyroid Research , 2012, DOI: 10.1155/2012/302537
Abstract: Graves' disease is a most common cause of hyperthyroidism. It is an autoimmune disease, and autoimmune process induces an inflammatory reaction, and reactive oxygen species (ROSs) are among its products. When balance between oxidants and antioxidants is disturbed, in favour of the oxidants it is termed “oxidative stress” (OS). Increased OS characterizes Graves' disease. It seems that the level of OS is increased in subjects with Graves' ophthalmopathy compared to the other subjects with Graves' disease. Among the other factors, OS is involved in proliferation of orbital fibroblasts. Polymorphism of the 8-oxoG DNA N-glycosylase 1 (hOGG1) involved in repair of the oxidative damaged DNA increases in the risk for developing Grave's disease. Treatment with glucocorticoids reduces levels of OS markers. A recent large clinical trial evaluated effect of selenium on mild Graves' ophthalmopathy. Selenium treatment was associated with an improved quality of life and less eye involvement and slowed the progression of Graves' orbitopathy, compared to placebo. 1. Introduction Graves' disease is a most common cause of hyperthyroidism in iodine sufficient areas [1]. It is characterized by diffuse goitre and hyperthyroidism. Graves' orbitopathy represents orbit involvement and is clinically relevant in about half of the patients with the Graves' disease. In 3 to 5% of the patients, orbitopathy is severe [2]. Graves' disease is an autoimmune disease characterized by the presence of the serum autoantibodies. TSH receptor antibody represents the major autoantibody in Graves' disease [3]. Autoimmune process induces an inflammatory reaction and reactive oxygen species (ROSs) are among its products. ROSs are formed as normal metabolic products and are important in normal cellular functioning, but their production can be increased under pathological conditions and cause damage [4, 5]. Therefore, a large number of antioxidant systems act as protective mechanism. Among them are superoxide dismutase which catalyses dismutation of superoxide to peroxide, catalase which catalyses the decomposition of hydrogen peroxide to water and oxygen, while glutathione peroxidise which reduces lipid hidroperoxides while simultaneously oxidizing glutathione [6]. Situation in which balance between oxidants and antioxidants is disturbed in favour of the oxidants is termed “oxidative stress” (OS) [4]. 2. Oxidative Stress and the Thyroid Gland Synthesis of thyroid hormones requires formation of the hydrogen peroxide, a highly reactive oxidant. Hydrogen peroxide and oxidized iodine are immediately
Diagnosis of Thyroid Disease: Principles and Problems
Milo arkovi
Journal of Medical Biochemistry , 2010, DOI: 10.2478/v10011-010-0037-4
Abstract: Conceptually, thyroid disorders can be classified into four groups, namely: 1. disorders of thyroid morphology, 2. disorders of thyroid function, 3. presence of thyroid autoimmunity, and 4. diagnosis and follow-up of thyroid carcinoma. Of course, these groups are non-exclusive, and often there is overlap between the groups. Ultrasound exam is a standard for the diagnosis of the disorders of thyroid morphology. To diagnose disorders of thyroid function TSH and thyroid hormones should be measured. Presence of thyroid autoimmunity is confirmed by measuring antibodies against thyroid-specific antigens. Thyroid peroxidase (TPO), thyroglobulin (Tg) and TSH receptors antibodies are used in the diagnosis, follow-up and prognosis of autoimmune thyroid disorders. The measurement of serum thyroglobulin has no role in the diagnosis of thyroid cancer, but it is used in the follow-up of patients treated for differentiated thyroid carcinoma of the follicular epithelium. Medullary thyroid cancer (MTC) produces calcitonin and carcinoembryonic antigen (CEA), but calcitonin is specific for MTC. In subjects with MTC, genetic testing should be done, and in positive cases family screening is necessary.
Contribution to the Genus Usnea (Parmeliaceae) in Slovakia: Usnea Glabrescens
Milo Luká
Hacquetia , 2010, DOI: 10.2478/v10028-010-0003-1
Abstract: Usnea glabrescens has been reported to be a re-found species after almost 24 years. We found this lichen in the Bielovodská dolina Valley, Tatry Mts. in 2008. The locality is situated in Tatra National Park near the borderline with Poland. Morphology and medullary chemistry of the specimen were typical for the species. Usnea glabrescens grew in a moderately open and humid mixed forest on the bark of Alnus incana.
"The ideal ethnographer"
Milenkovi? Milo
Glasnik Etnografskog Instituta SANU , 2006, DOI: 10.2298/gei0654161m
Abstract: This article is conceived within the scientific project "Anthropology in the 20th Century: Theoretical and Methodological Achievements". Focusing on the the disciplinary debates and critique around Millennium, this first article in a series offers a preliminary redefinition of some of the basic anthropological concepts: ethnography, ethnographer and informant, as used in pre-postmodern theory of ethnography. Critics interpreted postmodern anthropology as a strong form of relativism that is both epistemologically self-refuting and socially irresponsible. Much credit for the resulting turmoil goes to "postmodernists" themselves, as they failed to articulate precisely in what way their project rejects the traditional concept of regulative methodology, and what their reinterpretation of relativist conceptions of truth, authority, reflexivity, objectivity, interpretation and representation is. The critics dwelled heavily on the notion of incompleteness, vagueness and methodological irrelevance of postmodern criticism in anthropology, largely due to the fact that it never put forward clear definitions of the basic concepts it aims to pursue or to relinquish. As opposed to this received view, the article argues that at least one of the basic concepts used by postmodernists can be methodologically formalized: it is that of "traditional" or the "realist ethnographer". By construing hypothetical "ideal ethnographer", the article formalizes background theory of ethnography against which the postmodern project raised.
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