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Copyright of Lijecnicki Vjesnik is the property of Croatian Medical Association and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

One of the most fascinating aspects of condensed matter is its ability to conduct electricity, which is particularly pronounced in conventional metals such as copper or silver. Such behavior stems from a strong tendency of valence electrons to delocalize in a periodic potential created by ions in the crystal lattice of a given material. In many advanced materials, however, this basic delocalization process of the valence electrons competes with various processes that tend to localize these very same valence electrons, thus driving the insulating behavior. The two such most important processes are the Mott localization, driven by strong correlation effects among the valence electrons, and the Anderson localization, driven by the interaction of the valence electrons with a strong disorder potential. These two localization processes are almost exclusively considered separately from both an experimental and a theoretical standpoint. Here, we offer an overview of our long-standing research on selected organic conductors and manganites, that clearly show the presence of both these localization processes. We discuss these results within existing theories of Mott–Anderson localization and argue that such behavior could be a common feature of many advanced materials. [ABSTRACT FROM AUTHOR]

Copyright of Geodetic Courier / Geodetski Glasnik is the property of Union of Associations of Geodetic Professionals in Bosnia & Herzegovina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: Atherosclerotic cardiovascular diseases (ASCVD) are still the leading cause of morbidity and mortality in Bosnia and Herzegovina. Elevated LDL-cholesterol is established as a strong marker of cardiovascular risk. Some researchers believe that measuring triglyceride levels gives a good assessment of the residual risk for ASCVD besides the measurement of LDL-cholesterol. OBJECTIVE: The aim of this study was to evaluate the overall prevalence of major risk factors for ASCVD, lipid profile and 10-year fatal cardiovascular risk using the HeartSCORE scoring system. Further, we want to evaluate the prevalence and relationship between elevated triglyceride levels and high 10-year fatal cardiovascular risk calculated as a HeartSCORE. METHODS: This is a cross-sectional study conducted on 832 volunteers aged between 40 and 65 years without a diagnosis of diabetes and without known preexisting cardiovascular disease, as a part of the preventive program conducted at the Family Medicine office. Data were collected for ASCVD risk factors and lipid panel (total cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides). 10-year fatal cardiovascular risk was calculated using the HeartSCORE scoring system for countries with high CV risk. RESULTS: Among 832 participants included, 565 (67.9%) were female, and 267 (32.1%) were male. We found high prevalence of hypertension (27.7%), obesity (32.2%), and smoking (36.2%). All lipid parameters, except HDL-C, were not optimal. Only 17.4% of participants had normal estimated HeartSCORE risk, while more than one-third (33.9%) had high or very high estimated HeartSCORE risk. Although we found a higher percentage of participants with elevated triglycerides in groups with higher HeartSCORE, there was a very weak positive correlation between values of triglycerides and the 10-year risk of a fatal cardiovascular event (r = 0.249, p = 0.000). CONCLUSION: The high prevalence of major known risk factors and high estimated HeartSCORE risk indicate a high overall risk for ASCVD in the sample. The proportion of participants with elevated triglycerides was increased in patients with high HeartSCORE risk what implicates importance of triglyceride measurement. [ABSTRACT FROM AUTHOR]

Understanding divisibility at the primary school level is a strong predictor of students’ mathematical achievements in secondary education. To correctly measure students’ understanding and achievements, a valid and reliable test is needed. This research focuses on the construction of valid and reliable test for the divisibility area studied at the primary school level. After constructing three pilot tests according to learning outcomes and standards for divisibility, and qualitative validation, tests were distributed in six primary schools, with 380 participating students (ages 12 – 13). The results were used for reliability and quantitative item analysis, and the final version of the test, which covered standards of students’ achievement and had all items of appropriate difficulty and discriminative validity, was created. This test can be used by mathematics teachers in classrooms but also in large scale testing, like state or international testing. [ABSTRACT FROM AUTHOR]

Among transition metal oxides, manganites have attracted significant attention because of colossal magnetoresistance (CMR)—a magnetic field-induced metal–insulator transition close to the Curie temperature. CMR is closely related to the ferromagnetic (FM) metallic phase which strongly competes with the antiferromagnetic (AFM) charge ordered (CO) phase, where conducting electrons localize and create a long range order giving rise to insulator-like behavior. One of the major open questions in manganites is the exact origin of this insulating behavior. Here we report a dc resistivity and magnetization study on manganite La 1 − x Ca x MnO 3 ceramic samples with different grain size, at the very boundary between CO/AFM insulating and FM metallic phases x = 0.5 . Clear signatures of variable range hopping (VRH) are discerned in resistivity, implying the disorder-induced (Anderson) localization of conducting electrons. A significant increase of disorder associated with the reduction in grain size, however, pushes the system in the opposite direction from the Anderson localization scenario, resulting in a drastic decrease of resistivity, collapse of the VRH, suppression of the CO/AFM phase and growth of an FM contribution. These contradictory results are interpreted within the standard core-shell model and recent theories of Anderson localization of interacting particles. [ABSTRACT FROM AUTHOR]

Simple Summary: Human activities such as heavy industry and transport have significantly increased the levels of many poisonous chemicals in the human environment. Among these chemicals are heavy metals, which pose a great risk to human health because they cannot decompose and cannot be eliminated from the human body by metabolic processes. Volcanic stone called clinoptilolite is inert and extremely porous, and can capture heavy metals into its meshed structure. Therefore, it can be used as a food supplement for detox purposes. Several clinical studies have already indicated its detoxifying, antioxidant and anti-inflammatory effects. In our experiment, we fed healthy rats with clinoptilolite, which was milled to fine dust to improve performance, for three months. Two forms were used: tribomechanically activated zeolite and Panaceo-Micro-Activated zeolite. Upon completion of the administration period, we observed the impact of clinoptilolite dust on the metallic composition in different rat tissues and bloodstream. Our results showed that this activated natural stone had indeed released metallic toxicants from the rat organs to the bloodstream, which indicates a detoxification process. Heavy metals are dangerous systemic toxicants that can induce multiple organ damage, primarily by inducing oxidative stress and mitochondrial damage. Clinoptilolite is a highly porous natural mineral with a magnificent capacity to eliminate metals from living organisms, mainly by ion-exchange and adsorption, thus providing detoxifying, antioxidant and anti-inflammatory medicinal effects. The in vivo efficiency and safety of the oral administration of clinoptilolite in its activated forms, tribomechanically activated zeolite (TMAZ) and Panaceo-Micro-Activated (PMA) zeolite, as well as the impact on the metallic biodistribution, was examined in healthy female rats. Concentration profiles of Al, As, Cd, Co, Pb, Ni and Sr were measured in rat blood, serum, femur, liver, kidney, small and large intestine, and brain using inductively coupled plasma mass spectrometry (ICP-MS) after a 12-week administration period. Our results point to a beneficial effect of clinoptilolite materials on the concentration profile of metals in female rats supplemented with the corresponding natural clinoptilolite materials, TMAZ and PMA zeolite. The observed decrease of measured toxicants in the kidney, femur, and small and large intestine after three months of oral intake occurred concomitantly with their most likely transient release into the bloodstream (serum) indicative of a detoxification process. [ABSTRACT FROM AUTHOR]

Copyright of Geodetic Courier / Geodetski Glasnik is the property of Union of Associations of Geodetic Professionals in Bosnia & Herzegovina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study examines the practice of ethnic communities in Bosnia and Herzegovina flying a state, entity, religious, or foreign flag at wedding ceremonies in public spaces. The wedding custom is analyzed through the lens of Hannah Arendt's discussion of the way nationalism in the modern era links family and state. After a tragic war, flag power in this context appears to exacerbate nationalism and ethnic tensions in a polyethnic society trapped in a dysfunctional state structure created by the Dayton Accords. The empirical study finds that flag power does not, in fact, privilege ethnic solidarity over national solidarity to the degree that social and political theory would have us imagine. The national identity of being Bosnian is more likely to be exemplified. A clustered, stratified, random sample of 2,500 subjects over the age of eighteen was drawn from the country's population, including the two entities, Federation of Bosnia and Herzegovina and Republika Srpska and Brčko District. Survey questions involving face-to-face structured questions asked participants whether flags were flown at their weddings, which flags were flown, and attitudes toward the wedding custom. Variations by age, religiosity, education, ethnicity, type of flag flown, and political party affiliation are reported and interpreted. [ABSTRACT FROM AUTHOR]

Copyright of Geodetic Courier / Geodetski Glasnik is the property of Union of Associations of Geodetic Professionals in Bosnia & Herzegovina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Background: Homeostasis of proliferating tissues is strongly dependent on intact DNA. Both neoplastic and non-neoplastic diseases have been associated with MSH2 (MutS homolog 2, a mismatch repair protein) deficiency. In this study, we examined how age and diabetes mellitus influence the expression of MSH2 in the kidney. Methods: To study the effect of age, three groups of healthy rats were formed: 2 months, 8 months, and 14 months old. Two groups of diabetic rats were formed: 8 months old and 14 months old. Expression of MSH2 in the kidney was studied by quantifying immunofluorescent staining. Results: Age was identified as the main factor that influences MSH2 expression in kidneys. The effect of age followed parabolic dynamics, with peak expression at 8 months of age and similar levels at 2 and 14 months. Diabetes had an age-dependent effect, which manifested as the increase of MSH2 expression in 14-month-old diabetic rats in comparison to healthy animals. Conclusions: Age influences MSH2 expression in the kidney more than diabetes mellitus. Since ageing is a risk factor for kidney neoplasia, downregulation of MSH2 in older rats might represent one of the pro-oncogenic mechanisms of ageing at a molecular level. [ABSTRACT FROM AUTHOR]

The aim of this study is to examine the effect of the STEM approach on students’ achievements in processing teaching topics from Algebra. A quasiexperimental design was used with an experimental and control group. The research was conducted on a sample of 73 ninth-grade students (aged between 14 and 15). STEM approach was performed in teaching the experimental group, while the control group was taught in a traditional way. The obtained results showed that the STEM intervention had a positive impact reflected in significantly better results on the achievement tests. The girls performed better than boys on all tests. [ABSTRACT FROM AUTHOR]

The main goal of this paper is the spatial analysis of the forest area in Central Lika, a rural mountainous area in the central part of Croatia, in the period 1980-2012. The paper uses data from two databases, pertaining to the analysis period. A spatial analysis has been performed to determine the mean center/spatial tendency using the GIS Mean Center method. These data were complemented by field research. The results of the research showed reforestation, that is, an increase in the total forest area (by .24%). However, the surface of most widespread deciduous forests had decreased (-.26%), while an increase was observed in spatially less represented mixed (by 3.02%) and coniferous forests (by .84%). The spatial tendency of the forest area toward the southeast (by 1.87 km) was determined using the method of shifting mean center, which means that in the observed period, there was an increase in forest surface area/reforestation in the southern and eastern parts of Central Lika, and a decrease/deforestation in the northern and western parts. Spatial tendencies were observed to differ based on the types of forests. There was a shift in the mean center toward the southeast for deciduous (by 2.44 km) and coniferous forests (by 2.52 km), while in mixed forests toward the northeast (by 1.14 km). In line with the current socio-economic processes, it is to be expected that this trend of reforestation will continue, with the the spatial tendency toward the southeast, which should be considered as an important element in spatial planning. [ABSTRACT FROM AUTHOR]

Copyright of Geodetic Courier / Geodetski Glasnik is the property of Union of Associations of Geodetic Professionals in Bosnia & Herzegovina and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Economic & Ecohistory / Ekonomska i Ekohistorija is the property of Society for Croatian Economic & Environmental History and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)