rUMBa Repository of Matej Bel University in Banská Bystrica
Not a member yet
1035 research outputs found
Sort by
Maldonite (Au2Bi) from hydrothermal U-As mineralization near Henclová (Spišsko-gemerské rudohorie Mts., Western Carpathians): the first occurrence in Slovakia
No full textIn: Bulletin Mineralogie Petrologie. Praha : Mgr. Jiří Sejkora, 2024. ISSN 2570-7337. Vol. 32, no. 1 (2024), pp. 61-67.In Slovakia, maldonite was identified in the hydrothermal vein with U-sulphidic ore mineralization near Henclová village (Gelnica district) in the Spišsko-gemerské rudohorie Mts. (Vlachovo Formation, Gemeric Unit). It is the first occurrence of this mineral in Slovakia. Mineralization is developed in a hydrothermal quartz-chlorite (± fine grained white mica) vein with abundant arsenopyrite and minor quantities of uraninite, gersdorffite, löllingite, galenobismutite, bismuthinite, maldonite, bismuth and gold. Maldonite forms irregular grains up to 12 μm in size embedded in arsenopyrite, or extremely fine capillary veinlets in it. An intergrowth of maldonite with bismuthinite was rarely also observed. The chemical composition of maldonite is relatively monotonous, its average empirical formula can be expressed as (Au1.79Fe0.15) Σ1.94 (Bi0.98As0.02S0.04) Σ1.04. Microstructural relationships of ore minerals suggest that maldonite precipitated in the final stages of ore mineralization, when the temperature of the system decreased (after the crystallization of sulphoarsenides and löllingite).VEGA 1/0563/22 Asociácie a paragenézy supergénnych minerálov: odraz migrácie ťažkých prvkov v životnom prostredí
APVV-22-0092 Petrogenetické modely paleozoických granitických hornín v Západných Karpatoch a ich koreláci
The influence of the plyometric training on the lower limb explosive power of basketball players
No full textIn: Slovak journal of sport science : scientific peer-reviewed journal. Banská Bystrica : Univerzita Mateja Bela, Filozofická fakulta, 2024. ISSN 2453-7659. Vol. 9, no. 1 (2024), pp. 40-52.The plyometric training program currently used almost all kinds of sports. Athletes use them to improve their performance in specific movements, such as throws, jumps, starts, etc. Especially basketball is considered a very explosive, dynamic and fast- paced sport in which plyometric training is widely used. For the highest explosive power, two training methods must be recommended: strength and plyometric training. PT is commonly used method for developing of the lower limb explosive power by natural dynamic movements, such as various jump and jumps with counter movement
Examples of safety and health risk factors in woodworking industry in Slovak Republic
No full textIn: Trieskové a beztrieskové obrábanie dreva = Chip and chipless woodworking processes : vedecký časopis. Zvolen : Technická univerzita vo Zvolene, 2024. ISSN 2453-904X. Č. 14 (2024), s. 159-167.In the article, we want to point out the still existing safety and health risks in woodworking operations, the essence of which lies in processing of non-homogeneous materials such as wood, with anisotropic properties and the occurrence of natural wood defects, manual feed of the workpiece into the cut, tools with a large number of cutting edges and high cutting speeds, manual handling of loads, but also in many cases in the irresponsible approach of the employees or employers themselve to the OHS. Failure to address or avoid these risks leads not only to injuries, but long-term work in this environment to occupational diseases, especially hearing loss, diseases of the musculoskeletal system, etc. Although the legislation covers all areas in terms of OSH, its implementation in practice is lengthy and not always adequate. The basis for characterizing the existing safety and health risks was the manual "Risk Assessment Basics - Good for You, Good for Your Company", Check list for Woodworking. Based on the description, it is obvious that the safety risks in woodworking are known, but in many operations they tolerate, and due to health risks, minimal attention is paid to manual handling of loads and ergonomics, the neglect of which contributes significantly to diseases of the musculoskeletal system.VEGA 1/0323/23 Vplyv vybraných faktorov na kvalitatívno-kvantitatívne charakteristiky drevného prachu v pracovnom ovzduší pri opracovaní dreva elektrickým ručným náradí
Attention as a commodity in the world of disinformation and social media
No full textIn: Entrepreneurship and Sustainability Issues. Vilnius : Entrepreneurship and sustainability center, 2024. ISSN 2345-0282. Roč. 12, no 2 (2024), pp. 176-192.The dynamic development of information and communication technologies, systems and devices, the emergence of new digital media and platforms, as well as the increasingly widespread use of social networks, on the one hand, increase the availability of information and expand the possibilities of searching, receiving, creating, modifying and sharing it, on the other hand, in a significant way increase the risk of spreading misleading, altered, distorted, deceptive and/or invented information, for example, in the form of disinformation. Given the fact that current business models and the ecosystem of advertising technology allow advertising to be tailored based on already known preferences and previous interactions of users, based on their profile, interests, activities, content they interact with, and even their interpersonal relationships, media, platform, social networks and advertisers try – to achieve the best possible economic results – to attract the sustainable attention of their users. Unfortunately, in many cases, it is also through the spread of disinformation. In this context, the authors, using relevant methods of scientific research, focused on attention as a commodity and the functioning of the attention economy in the context of the increasing extent of the spread of various disinformation (but also hoaxes and conspiracy theories) primarily through social networks, their susceptibility to the spread of unwanted content and efforts to regulate the spread of such content.APVV-20-0334 "Nie je to pravda, ale mohla by byť": Konšpiračné teórie a hoaxy v modernom vývoji Slovenska v európskom kontext
The electronic monitoring in criminal proceedings
No full textIn: Acta Facultatis Iuridicae Universitatis Comenianae. Bratislava : Univerzita Komenského v Bratislave, 2024. ISSN 1336-6912. Roč. 43, č. 2 (2024), s. 105-122.Elektronické sledování osob stále představuje v oblasti trestního práva v podmínkách České republiky, ale i třeba Slovenské republiky, novum. Elektronický monitoring alias elektronická kontrola představuje procesní institut, který umožňuje sledovat pohyb, nikoliv však výlučně, obviněné či odsouzené osoby. V našich právních podmínkách se však jedná o komplementární surogát/substitut, který umožňuje nahradit klasické mechanismy a opatření jako například vazbu či výkon trestu domácího vězení. Podstatným zůstává, že se v ČR nejedná o samostatně stojící právní nástroj, ale vždy musí mít nějakou vazbu na jiné trestněprávní opatření či sankci. Příspěvek je rozdělen do dvou částí. První část je orientována na právní východiska využití e-monitoringu v trestních věcech, a to i včetně poukázání na mnohá úskalí a nedokonalosti. Druhá část se věnuje technickým a provozním podmínkám využití e-monitoringu z praktického hlediska. Cílem tohoto příspěvku je přiblížit a sumarizovat východiska e-monitoringu, především v ČR, s poukázáním na jeho bližší komplikace a zamyšlením se nad jejích řešením
Cross-cultural adaptation of a questionnaire measuring organizational citizenship behavior towards the environment
No full textIn: Administrative Sciences. Basel : Multidisciplinary Digital Publishing Institute, 2024. ISSN 2076-3387. Vol. 14, no. 3 (2024), pp. 1-38.Translation, adaptation, and validation of instruments for cross-cultural investigation requires a rigorous methodological procedure that should be carefully planned to deliver instruments with adequate reliability and validity. This process was applied to a questionnaire measuring Organizational Citizenship Behavior toward the Environment (OCBE), Organizational Identification (OI), Environmental Responsibility (ER), and Green Human Resources Management (GHRM) in Portuguese and Slovak organizations. Several methodological procedures for cross-cultural adaptation and validation of questionnaires were analyzed, most of which used independent translators, experts' analysis, and backward translation to the original language. In the present study, a procedure adapted from Beaton et al. (2000) was applied successfully, and the blind backward translations; expert committee; and the two pretests to assess content validity, functional equivalence, and clarity proved to be worthy. The psychometric properties were measured using a sample from Portugal (N = 122) and Slovakia (N = 269). Although employees were perceiving neither a strong environmental responsibility of their organizations nor strong green human resources management, they identified themselves with the organizations and engaged in OCBEs. Comparing both countries, the factorial structure was remarkably similar, highlighting the eco-helping actions and eco-civic engagement of OCBEs. Comparing both countries, the factorial structure was remarkably similar, highlighting the eco-helping actions and eco-civic engagement of OCBEs. The results indicated that the translated instrument was functionally equivalent to the original one, valid (scale CVI/Ave > 0.83), and reliable (Scale Alpha > 0.733) for evaluating the effect of employee practices and organization management in promoting and supporting environmental sustainability
Restorative justice and (not) content in the amendment of the criminal code
No full textIn: Košické dni trestného práva 2024 = Košice criminal law days 2024 : zborník vedeckých príspevkov z celoštátnej interdisciplinárnej vedeckej konferencie s medzinárodnou účasťou : the collection of scientific contributions nationwide interdisciplinary scientific conference with international participation / rec. Jiří Mulák, Miroslav Baňacký. 1. vyd. Košice : Univerzita Pavla Jozefa Šafárika v Košiciach, 2024. ISBN 978-80-574-0368-5. S. 66-74.V príspevku poukazujeme na skutočnosť, že podľa nášho názoru nevyhnutné výrazné navýšenie personálneho stavu na orgánoch aplikácie práva majúcich kľúčové postavenie pri praktickom výkone restoratívnych programov (najmä policajtov a probačných a mediačných úradníkov). Zároveň v článku analyzujeme úlohu prokurátora v tomto procese a jeho postavenie v rámci prokuratúry Slovenskej republike, a preto poukazujeme na aktivity aktuálne realizované generálnou prokuratúrou Slovenskej republiky na tomto úseku.APVV-23-0645 Optimalizácia sankčného mechanizmu v oblasti ochrany životného prostredia a zvýšenie jeho efektívnost
Comparison of three methods for LDL-cholesterol calculation for cardiovascular disease risk categorisation in three distinct patient populations
No full textIn: Cardiology Letters. Bratislava : Slovenská kardiologická spoločnosť, 2024. ISSN 1338-3655. Vol. 33, no. 1 (2024), pp. 13-26.Background: Limitations of the Friedewald equation for low-density lipoprotein cholesterol (F-LDLC) calculation, which is used by ≈ 33% of laboratories in Slovakia and 66% of laboratories in Europe, led to the Martin-Hopkins (M-LDLC), extended Martin-Hopkins (extM-LDLC) and Sampson/National Institutes of Health (S-LDLC) equations. We studied these newer calculations of LDLC for correlation and discordance for stratification into the 2019 ESC/EAS Guidelines’ cardiovascular disease (CVD) risk categories.
Methods: We performed analyses on lipid profiles from 3 populations: 873 healthy children from the cross-sectional Slovak Lipid Community Study (population SLCS), records of a 1949 patients of a hospital biochemistry laboratory from from a specialized cardio centre (population VÚSCH), and records of 9113 patients of a hospital biochemistry laboratory from a large general hospital (population FN FDR). Patients were categorized as concordant if LDL-C was up to ≈ 3.4% or 8.9% of patients, respectively, to a higher CVD risk category. The difference between F-LDLC and extM-LDLC or S-LDLC is greater with higher TG, and with lower LDLC. Reliance on the Friedewald equation may result in the underestimation and undertreatment of LDL-C in those at increased risk. We recommend, in line with some national/international guidelines, that clinical laboratories switch to counting and reporting results to extM-LDLC. Fig. 4, Tab. 5, Ref. 42,
Listy J. M. Hurbana ostatným V. / J. M. Hurban´s letters to others V.
No full textSúbor obsahuje snímky listov Jozefa Miloslava Hurbana adresovaných ostatným (spolupracovníkom a vysokým predstaviteľom svetských úradov a inštitúcií z územia habsburskej monarchie, resp. Uhorska) v rokoch 1849 – 1855 a ich prepisy v Transkribe. Rukopisné listy v nemčine boli automaticky prepísané pomocou verejného modelu Transkribus German handwriting M1 (ID: 35909; CER 4,7 %; vyvinutý: Transkribus Community). Na prepis listu v slovenčine bol použitý model SKRIPTOR Model J. M. Hurban (ID: 57344, CER 5 %; vyvinutý: Alica Kurhajcová v rámci projektu SKRIPTOR). Automatické prepisy listov sú ponechané bez dodatočných úprav (s výnimkou úvodných a záverečných formúl listu, dátumov, prípadne vlastných mien a číslic). Originály listov pochádzajú z osobného fondu J. M. Hurbana uloženého v Literárnom archíve Slovenskej národnej knižnice v Martine pod signatúrami: M23X9; M23X22; M23X27; M23X32; M23X36, M23X51; M23X70; M23X73; M23X77; M23Y7; M23Y9; M23Y11; M23Y12; M23Y20; M23Y25; M23Y27; M23Y34; M23Y36; M23Y41; M23Y45; M23Y59; M23Y61; M23Y70; M23Y72. Rozsah: 132 digitalizátov s prepisom (28 listov). Jazyk: nemecký, slovenský. Písmo: kurent, latinská kurzíva. Automaticky prepísaný súbor listov je výstupom z riešenia projektu APVV-19-0456 SKRIPTOR – Inovatívne sprístupnenie písomného dedičstva Slovenska prostredníctvom systému automatickej transkripcie historických rukopisov (2020 – 2024).The file contains images of letters of Jozef Miloslav Hurban addressed to others (associates and high representatives of secular and ecclesiastical authorities and institutions from the territory of the Habsburg Monarchy or the Kingdom of Hungary) from the years 1849 – 1855 and their transcriptions in Transkribus. Handwritten letters in German were automatically transcribed using the public model Transkribus German handwriting M1 (ID: 35909; CER 4.7%; developed by Transkribus Community). The SKRIPTOR Model J. M. Hurban (ID: 57344, CER 5 %; developed by Alica Kurhajcová within the SKRIPTOR project) was used for transcription of the letter in Slovak. The automatic transcriptions of the letters are left unedited (with the exception of the opening and closing phrases of the letter, dates, or proper names and numerals). The originals of the letters come from the personal fond of J. M. Hurban deposited in the Literary Archive of the Slovak National Library in Martin under the references: M23X9; M23X22; M23X27; M23X32; M23X36, M23X51; M23X70; M23X73; M23X77; M23Y7; M23Y9; M23Y11; M23Y12; M23Y20; M23Y25; M23Y27; M23Y34; M23Y36; M23Y41; M23Y45; M23Y59; M23Y61; M23Y70; M23Y72. Number of digitized documents with transcription: 132 (28 letters). Language: German, Slovak. Script: Kurrent, Latin cursive. The automatically transcribed file is an output from the project APVV-19-0456 SKRIPTOR – Innovative access to the written heritage of Slovakia through a system of automatic transcription of historical manuscripts (2020 – 2024).SKRIPTOR APVV-19-0456 Inovatívne sprístupnenie písomného dedičstva Slovenska prostredníctvom systému automatickej transkripcie historických rukopisovSKRIPTOR APVV-19-0456 Innovative access to the written heritage of Slovakia through a system of automatic transcription of historical manuscript
Mechanochemical trifluoromethoxylation of aryltrimethylammonium triflates, aryldiazonium tetrafluoroborates, and aryl pinacolboranes
No full textIn: Cell reports physical science. Cambridge : Cell Press, 2024. ISSN 2666-3864. Vol. 5, no. 8 (2024), pp. 1-15.Aryl trifluoromethyl ethers (ArOCF3) are important structural motifs in pharmaceuticals, agrochemicals, and functional materials. However, the methods reported for the efficient synthesis of these scaffolds are extremely underdeveloped and limited. Here, we report a highly efficient mechanochemical approach for the selective transformation of aryltrimethylammonium triflates, aryldiazonium tetrafluoroborates, and aryl pinacolboranes to aryl trifluoromethyl ethers via in situ-generated OCF3 source using triphosgene and Co(II) fluoride (CoF2). The proposed synthetic protocol also shows potential for the selective transformation of other groups such as arylsulfonium and diaryliodonium functionalities. The present trifluoromethoxylation strategy exhibited a broad functional group tolerance and found to be superior over other existing protocols in terms of substrate scope, yields, operational simplicity, and reaction times.APVV-21-0362 Perfluóralkylácia - stratégia diverzifikácie komplexných organických molekúl v neskorej fáze syntéz