Newly verified occurrences of industrial minerals in Belize

Modern society is characterised by functional infrastructure and sufficient number and variety of materials in the form of various technical goods. All these achievements of civilisation are not only the result of human skills, but their material principles are based on industrial minerals. This group of materials includes a wide range of the natural raw materials which are used in many industries. This includes the raw materials for the manufacture of glass, ceramics or fillers. For other raw materials, new applications are just being developed. These materials are very desirable in the market. Not only are their supplies endless, but they occur very unevenly in the natural deposits and unlike most metals can't be recycled. Due to low production costs in the production of this type of the raw materials, the competition in the global market has significantly increased during recent years. With this growing trend has significantly increased the interest in these materials in developing countries, which is precisely the Central American country of Belize. In the context of the cooperation, project has been verified several economically interesting sources such as ceramic clay, bentonite, feldspar and carbonate materials.Web of Science22222421

Troj-variantné spracovanie a vyrovnanie observácií a určovaných odhadov

The present article deals with three-variant processing and finding estimates of unknown parameters in a geodetic network by the technology of global navigation satellite systems in 2004, 2008 and 2011. The assessment of the impact of a used method of adjustment on the estimation of parameters of the first and second order of the geodetic network and the presentation of results of a deformation analysis with graphical visualisation of individual processing and analyses are the objectives of this paper. An LSM method and robust M-estimates according to Huber and Hampel were used for the processing and adjustment of observations. All three processing methods showed a displacement of point No. 5005 in the epoch 04-08 in the analysis of the stability of points, which is also confirmed by graphical visualisations using confidence error ellipsoids.Predmetný článok sa zaoberá trivariántnym spracovaním a určením odhadov neznámych parametrov v geo-detickej sieti observovanej technológiu využívajúcou signály globálnych navigačných satelitných systémov v ro-koch 2004, 2008 a 2011. Cieľom práce je zhodnotiť vplyv použitej metódy vyrovnania na odhad parametrov pr-vého a druhého rádu geodetickej siete a prezentovať výsledky analýzy pretvorení s grafickou vizualizáciu jednot-livých spracovaní a analýz. Na spracovanie a vyrovnanie observácií boli použité MNŠ a robustné M-odhady podľa Hubera a Hampela. Pri analýze stability bodov poukázali všetky 3 metódy spracovania na posun bodu 5005 v epoche 04-08, čo potvrdzujú aj grafické vizualizácie pomocou konfidenčných elipsoidov chýb

Return on shares of steel companies under the influence of mergers and acquisitions

The present article intends to asses returns on shares of the steel companies that were formed based on either merger or acquisition. The analysis included 14 operations in the steel industry. Attention was paid to returns of the companies performing acquisitions, as well as to the returns on shares that presented the acquisition target. The analysis was performed based on the “event study” method, and the analysed event was the announcement or notification of realization of an acquisition. Shares of the target steel companies as well as acquirers are attaining higher returns, but the change was not statistical significant.Web of Science54130630

Complex processing of rubber waste through energy recovery

This article deals with the applied energy recovery solutions for complex processing of rubber waste for energy recovery. It deals specifically with the solution that could maximize possible use of all rubber waste and does not create no additional waste that disposal would be expensive and dangerous for the environment. The project is economically viable and energy self-sufficient. The outputs of the process could replace natural gas and crude oil products. The other part of the process is also the separation of metals, which can be returned to the metallurgical secondary production.Web of Science20429729

The new national energy concept 2015-The future of brown coal in the Czech Republic

Reserves of brown coal in the Czech Republic are, in the long term view, still recognized as the main domestic fuel and energy resource. The biggest issues, concerning the use of these domestic resources, are, according to the authors, the existence of the “Resolution of the Government of the Czech Republic No. 444” of 30 October, 1991 together with the new State Energy Concept, which was approved in May this year, and which states that the CR will export three out of four key fuels and energy resources, namely oil, gas and nuclear fuel. Brown coal is, therefore, the only domestic energy resource that allows a long-term guarantee leading towards reducing the energy dependence.Web of Science20431029

Expert appraisal of criteria for assessing gaming disorder : An international Delphi study

© 2021 The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License (CC-BY-NC-ND - https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.Background and aims: Following the recognition of ‘internet gaming disorder’ (IGD) as a condition requiring further study by the DSM-5, ‘gaming disorder’ (GD) was officially included as a diagnostic entity by the World Health Organization (WHO) in the 11th revision of the International Classification of Diseases (ICD-11). However, the proposed diagnostic criteria for gaming disorder remain the subject of debate, and there has been no systematic attempt to integrate the views of different groups of experts. To achieve a more systematic agreement on this new disorder, this study employed the Delphi expert consensus method to obtain expert agreement on the diagnostic validity, clinical utility and prognostic value of the DSM-5 criteria and ICD-11 clinical guidelines for GD. Methods: A total of 29 international experts with clinical and/or research experience in GD completed three iterative rounds of a Delphi survey. Experts rated proposed criteria in progressive rounds until a pre-determined level of agreement was achieved. Results: For DSM-5 IGD criteria, there was an agreement both that a subset had high diagnostic validity, clinical utility and prognostic value and that some (e.g. tolerance, deception) had low diagnostic validity, clinical utility and prognostic value. Crucially, some DSM-5 criteria (e.g. escapism/mood regulation, tolerance) were regarded as incapable of distinguishing between problematic and non-problematic gaming. In contrast, ICD-11 diagnostic guidelines for GD (except for the criterion relating to diminished non-gaming interests) were judged as presenting high diagnostic validity, clinical utility and prognostic value. Conclusions: This Delphi survey provides a foundation for identifying the most diagnostically valid and clinically useful criteria for GD. There was expert agreement that some DSM-5 criteria were not clinically relevant and may pathologize non-problematic patterns of gaming, whereas ICD-11 diagnostic guidelines are likely to diagnose GD adequately and avoid pathologizing.Peer reviewe

Expert appraisal of criteria for assessing gaming disorder: an international Delphi study.

BACKGROUND AND AIMS: Following the recognition of 'internet gaming disorder' (IGD) as a condition requiring further study by the DSM-5, 'gaming disorder' (GD) was officially included as a diagnostic entity by the World Health Organization (WHO) in the 11th revision of the International Classification of Diseases (ICD-11). However, the proposed diagnostic criteria for gaming disorder remain the subject of debate, and there has been no systematic attempt to integrate the views of different groups of experts. To achieve a more systematic agreement on this new disorder, this study employed the Delphi expert consensus method to obtain expert agreement on the diagnostic validity, clinical utility and prognostic value of the DSM-5 criteria and ICD-11 clinical guidelines for GD. METHODS: A total of 29 international experts with clinical and/or research experience in GD completed three iterative rounds of a Delphi survey. Experts rated proposed criteria in progressive rounds until a pre-determined level of agreement was achieved. RESULTS: For DSM-5 IGD criteria, there was an agreement both that a subset had high diagnostic validity, clinical utility and prognostic value and that some (e.g. tolerance, deception) had low diagnostic validity, clinical utility and prognostic value. Crucially, some DSM-5 criteria (e.g. escapism/mood regulation, tolerance) were regarded as incapable of distinguishing between problematic and non-problematic gaming. In contrast, ICD-11 diagnostic guidelines for GD (except for the criterion relating to diminished non-gaming interests) were judged as presenting high diagnostic validity, clinical utility and prognostic value. CONCLUSIONS: This Delphi survey provides a foundation for identifying the most diagnostically valid and clinically useful criteria for GD. There was expert agreement that some DSM-5 criteria were not clinically relevant and may pathologize non-problematic patterns of gaming, whereas ICD-11 diagnostic guidelines are likely to diagnose GD adequately and avoid pathologizing

Ochrana životního prostředí v kontextu mezinárodní, evropské a české legislativy

Import 07/02/2010Prezenční546 - Institut environmentálního inženýrstvívýborn