bluuebunny/crossref_metadata_2025 huggingface dataset:
Avoiding Burnout In Helping Professions: Treatment and Intervention Strategies
Authors: Stunder Stephen , Lonergan Laura Santanna
Published: February 2023

Helping professions tend to take a serious physical and emotional toll on those who work in the profession. To establish a lifestyle of avoiding overextending oneself, professionals should work to not only hone their craft, but also learn techniques and strategies to enable self-care. Learning to deploy treatment and intervention strategies to develop a solid self-care regimen will not only improve the level of service provided, but will maintain a more physically and emotionally healthy workforce. This article will explore the definition of burnout and how to identify and combat it, but also offer the opportunity for the helping profession providers to develop self-care techniques and strategies for themselves. By establishing a system and implementation strategy on the institutional level, providers can address the root of burnout. No single intervention will create a culture where burnout does not exist. However, a combination of strategies and interventions among both the institution and the individual can provide employees with a greater sense of meaning in their work, thus providing the personal investment necessary to control and eliminate burnout tendencies. Keywords: helping, emotional, burnout, self-care, regimen, techniques, strategies, investment, meaning
Effect of Gross Domestic Product and Interest Rate Changes on the Financial Performance of Banks in Kenyan: A Case of Co. Bank Limited
Authors: Cheluget Dr. John , Bonareri Edna Moriasi , Sile Isabella
Published: February 2023

The study's primary objective was to determine the effect of macroeconomic variables on bank performance. Numerous studies on the effects of macroeconomic factors on the banking business in Kenya and globally have been undertaken, all with differing findings and conclusions. The purpose of this study was to add to existing information by determining the extent to which macroeconomic variables affect bank performance. The study was guided by the following objectives: To what extent has gross domestic product affected the Co. Bank of Kenya Limited’s performance, extend to which interest rate changes affect the Co. Bank of Kenya Limited’s performance. Liquidity preference theory, efficient market theory, and current portfolio theory were adopted in the study. The study used a descriptive research approach to examine the relationship between the independent variables of gross domestic product and interest rates and the dependent variable of bank performance. The study surveyed a total of 120 respondents from the Cooperative Bank of Kenya limited, including branch managers, credit managers, finance officials, accountants, staff, and consumers. The study drew conclusions about the research issue using both primary and secondary data. The study collected main data via questionnaires and secondary data via data collecting forms. Secondary data was derived from the Co-operative Bank of Kenya's annual financial reports from 2016 through the first quarter of 2022, CBK, Kenya Bureau of statistics, World Bank reports etc. The study first looks at the general information of the respondents in the fourth chapter. This information is presented using pie charts, graphs and tables. The chapter further explores the dependent variable and presents response from respondents on the extent to which independent variables affect dependent variables in for, of graphs, tables. The study also explores each independent variable. It starts with GDP and Interest rates respectively. For every independent variable the researcher used five statements to ascertain the effect of each variable on bank performance. The research also utilizes secondary data to compute trend analysis for each independent variable and to formulate multiple regression equation and regression coefficients. The study wraps up with the limitation of the study. The last part of the study entails a summary of the research findings. The summary provides an illustration of each independent variable and its effect on the dependent variable in line with the findings of the study. The study further looks at overall research conclusions, provides recommendation on what needs to be done to minimize the effects of the independent variables on the dependent variable.
ChatGPT: A Study of AI Language Processing and its Implications
Authors: Mattas Puranjay Savar
Published: February 2023

Conversational AI models like ChatGPT, developed by OpenAI, are a testament to the rapid advancements in artificial intelligence and language processing capabilities. ChatGPT is a language model trained on massive amounts of data, capable of performing a range of language-related tasks, including answering questions, generating text, and even writing poems. Its impressive performance has attracted significant attention from both researchers and industry professionals, leading to its widespread use in a variety of applications. However, the deployment of conversational AI models like ChatGPT raises important ethical and social considerations. There are concerns about the potential for AI systems to perpetuate biases and stereotypes, and the impact they may have on employment. As such, it is crucial that the development and deployment of these models be guided by ethical considerations and principles. The potential benefits of conversational AI models like ChatGPT are significant and far-reaching. In the customer service sector, for example, they can provide 24/7 support and improve the overall customer experience. In the content creation and marketing industries, they can be used to generate high-quality content, freeing up human workers to focus on more creative and strategic tasks. Additionally, they have the potential to revolutionize the way we interact with technology, changing the way we communicate and access information. ChatGPT represents a significant breakthrough in the field of AI language processing, with the potential to transform various industries and improve our lives. However, it is essential that we approach its development and deployment with caution, taking into account the potential ethical and social implications. The continued growth and evolution of conversational AI models like ChatGPT will shape the future of human-computer interaction, and it is up to us to actively monitor and mitigate any adverse consequences. In this research we will be discussing about all of these topics.
The Effect of Asphalt Baths Wearing Coarse (AC–WC) on the Tide
Authors: Dewi Kemmala , Krisdiyanto Aris , Kriswandanu Archi Rafferti , Kriswandaru Althea Serafim
Published: February 2023

The phenomenon of high tide that occurs in the coastal areas of Indonesia, especially on the island of Java which often results in floods or often called tidal floods. Tidal flooding is a flood event caused by the overflow of sea tides into coastal land. Often the overflow reaches on some roads located in coastal areas so that roads located in those coastal areas are damaged. Therefore, it is necessary to conduct research to investigate the effects caused by stagnant water on road pavement. The study used two standard methods of immersion in high tide and water in the laboratory. This study aims to determine the durability performance of the soaking mixture continuously (continuously) and periodically (intermittently). Soaking specimens (test objects) in a tide with a time variation of 12 hours; 24 hours; 48 hours; and 72 hours. While periodic soaking is carried out by soaking the specimen (test object) for 12 hours, then removed and allowed to stand for the next 12 hours for 3 days. Soaking the asphalt concrete wearing course (AC-WC) mixture either continuously or periodically in the tide has a greater influence compared to the use of laboratory water. This is indicated by the value of the Stability of the asphalt mixture in a bath with a tide smaller than the asphalt mixture soaked with laboratory standard water.
Triadic Reciprocal Determinism and Rational Choice Theory: A Case Study of Rohingya Refugee
Authors: Dasadwiastaning Valentia Nadya
Published: February 2023

Background: The similarities among the refugee looks like a phenomenon that needs further research. Those theories are a part of behaviorism and the decision-making approach. It can be used to predict alternatives choice and also which alternatives the actor or agent will determine.
Aim: This study tries to analyze the behavior of Rohingya refugees with triadic reciprocal determinism and rational choice theory. It also profoundly concerns how the decision to act adopted by refugees is almost similar, whether in steps or goals.
Method: This research uses a qualitative approach and sources from journals, articles, and interviews from online news. All the data sources will be analyzed with the theory already mentioned above.
Findings: While Rohingya get safe and are placed in a temporary camp, some flee and do not want to wait for status determination. They have similar goals and behaviors that guide them to choose better alternatives. Being smuggled by a third party is one of the rational choices they make. That choice is determined based on behavior that constructs their rationale. Factors in triadic reciprocal determinism are also related to alternatives choice that they make, which is part of the social cognitive process.
Is it Corporate Governance, Industry, and Profitability Matter on Esg Performance? Evidence from Indonesian Companies
Authors: Rahmadani Filardi , Adrianto Fajri , Alfarisi Mohamad Fany
Published: February 2023

This study aims to test and provide empirical evidence regarding the influence of corporate governance (percentage of independent commissioners), industry, and profitability (ROA and retention ratio) on environmental, social, and governance (ESG) performance. This study also uses two control variables: company size and company age. The objects of this study are companies listed on the Indonesia Stock Exchange (IDX) that have complete ESG scores from the Thomson Reuters Eikon database for 2011-2020. The sample companies are 25 companies selected based on the purposive sampling method. Hypothesis testing was carried out using panel data regression analysis with the STATA 14.0 program. The results of the study show that the industry variable, profitability (retention ratio), has a negative and significant effect on ESG performance. For corporate governance variables (independent commissioners), profitability (ROA) has no effect on ESG performance. This study adds value to the existing literature because it provides an overview of the impact of the factors used on ESG performance in companies in Indonesia.
The Impact of Tendering Management Practices on Oil & Gas Project Scope Creep in the UAE: A Structural Equation Modeling Method
Authors: Alkarbi Awadh M. , Ajmal Mian M. , Zabadi Abdelrahim M.
Published: February 2023

The goal of this study is to determine whether or not contract quality (CQ) can mediate the effect of tendering management (TM) procedures on the project scope creep (PSC) issue in the UAE's oil and gas (O&G) industry. The data collected from 270 individuals working in public and private companies on O&G projects in the UAE are analyzed using a structural equation modeling (SEM) methodology. The findings showed that TM significantly influenced PSC during the project's execution phase. The findings also supported the hypothesis that CQ mediated the relationship between TM and PSC during this period. This study provides clear guidelines for procurement, project, and other stakeholder managers and leaders on how to avoid project scope creep through careful planning of any O&G project's scope, budget, and duration by managing tendering activities and creating high-quality contracts to facilitate project management. The impact of TM on PSC during the project's execution phase through the CQ has not yet been researched in the UAE setting, despite existing literature and ideas in these three fields of study. This report could include mention the research of O&G industrial groups.
Morphological and Morphometric Parameters of the Reproductive Organs of Euschistus heros (Hemiptera: Pentatomidae) Treated With a Sublethal Juvenile Hormone Analog
Authors: Cremonez Paulo S. G. , Matsumoto Janaina F. , Perier Jermaine D. , Dunn Thomas P. , Pinheiro Daniela O. , Neves Pedro M. O. J.
Published: February 2023

The stinkbug Euschistus heros is an important pest of Brazilian agricultural production with increasing importance in the Neotropical region. High reproductive potential and increased risk of resistance to insecticides are determining factors influencing its pest status. This work evaluated the effects of pyriproxyfen on the reproduction and morphological development of the reproductive system of E. heros. Pyriproxyfen was utilized at sublethal concentrations (LC30) in fourth-instar nymphs (N4). Sublethal pyriproxyfen resulted in a reduction in fertility and fecundity of 2 and 12% when only the males were treated, 47 and 53% when only the females were treated, and 32 and 46% when females and males were treated. Basal oocytes were larger and more previtellogenic in newly emerged pyriproxyfen-treated females. The nuclear area of testicular accessory cells shrunk after 10 and 15 days of age in treated insects. Similarly, testicular shape was altered, changing from an ellipsoid to an obpyriform pattern, characterized by hypertrophy of the basal region over time. The apparent area of the organ grew until ten days of age, then shrunk at 15 days of age. In summary, pyriproxyfen treatments disrupted the normal development of N4 of E. heros and diminished the reproductive potential of female and male adults.
Molecular Markers in Plant Breeding
Authors: Benchimol-Reis Luciana L.
Published: February 2023

Molecular markers are an important tool for plant breeding. Since the 1980s, in response to the technology development, molecular marker approaches have been further diversified. The establishment of new-generation sequencing and high-throughput plant phenotyping has greatly decreased the time to genotype large numbers of individuals. For breeders who are not very familiar with molecular techniques and want to catch up with the advances in the field, this review offers basic knowledge. Each molecular marker technology has specific advantages as well as limitations. Molecular marker types, diversity studies, QTL mapping, associative mapping, marker-assisted backcrossing and genomic selection are explored. Marker application in plant breeding is also described. In the genome, molecular markers can detect the genetic architecture of a trait, but also identify candidate genes with an important role in plant breeding programs.
Afinidades perdidas: Don Quijote, Die Leiden des Jungen Werther (1774) y la tradición cervantina alemana
Authors: Moro Martín Alfredo
Published: February 2023

Por lo general, los estudios que han abordado la influencia de Miguel de Cervantes en Goethe han destacado el interés del autor germano por el novelista español, en el contexto más amplio de un palpable desinterés de Goethe por las letras hispánicas. En este artículo pretendo analizar cómo Don Quijote y la tradición cervantina alemana suponen un importante sub-texto en Die Leiden des jungen Werther. Desde mi punto de vista, Goethe articula en su novela el retrato de un lector fallido, enfrascándose en un fructífero diálogo con el Quijote y con la tradición cervantina alemana de la segunda mitad del siglo XVIII, pero abriendo a su vez nuevas vías para la tradición cervantina europea al convertir el quijotismo de Werther en una interpretación libresca de la realidad, y no tanto en una transformación mental de la misma.
The rhetorical density of authorial emotiveness and voice passiveness in abstract compositions
Authors: Mohamad Hairul Azhar , Pilus Zahariah , Zolkapli Rasyiqah Batrisya Md , Mohaini Muhammad Luthfi , Wahab Nadiah Hanim Abdul , Nath Pavithran Ravinthra
Published: February 2023

The study sought to examine authorial emotiveness and passive tone of academic writing in academic research abstracts (RAs) to appeal to the Aristotelian pathos. Based on the integrated framework of Contrastive Rhetoric and Domain of Emotional Tone, this study investigated the overall demonstration of emotional appeal through quantitative content analysis of two rhetorical items - emotive phrases and passive voice in subtly ‘colouring’ the academic tone of research abstracts. Four hundred eighty (480) research abstracts (RAs) of the international non-native English writers (INE) and Malaysian non-native English writers (MNNE) were sampled from 88 national and international indexed journals. Two quantitative analysis tools were used to auto-generate the frequency percentages, which were then analysed with SPSS. It was found that MNNE RAs showed a significantly denser level of overall emotional appeal than INE RAs. The authorial tones of emotiveness and passiveness were also distinctly heavier in academic MNNE RAs than INE RAs. These were concluded as the marked rhetorical features of non-native English writers, deflecting them from the ones used by native English writers. In terms of research implication, the common trend of these features was not to be misconstrued by MNNE writers as the main rhetorical appeal of research composition.
Estudio etnobotánico de plantas útiles en la comunidad campesina de Acopia, Acomayo, Cusco
Authors: Dueñas-Huanca Gleny , Cutire-Sumina Aida Rosalia , Huamantupa-Chuquimaco Isau
Published: February 2023

Se realizó el estudio etnobotánico de las plantas útiles en la comunidad de Acopia en la región andina del Cusco. Se tuvo como objetivos a) evaluar la riqueza de plantas útiles, b) conocer los usos c) determinar las categorías de amenaza. Para conocer la riqueza se hicieron colectas de plantas útiles; para conocer los usos nos basamos en encuestas etnobotánicas calculando los índices: cita de frecuencia relativa (CFR) y valor de uso (VU), se identificó los estados de amenaza según los criterios de la IUCN.  Para Acopia registramos 141 especies de plantas útiles, pertenecientes a 100 géneros y 53 familias. Las familias más ricas: Asteraceae (25 especies), Poaceae (9) y Fabaceae (8). Todas las plantas útiles encontradas están consideradas en al menos una de las 11 categorías de uso, siendo las más resaltantes: Medicinal con 125 especies, Alimenticio para animales domésticos (88) y Cultural (47). La especie con mayor VUt fue: Senna birostris con 13; de acuerdo al CFR la especie usada con mayor frecuencia es Solanum tuberosum con valor de 1 en la categoría de AH. En total las especies que están consideradas en peligro crítico (CR) fueron: Kageneckia lanceolata, Polylepis racemosa, Buddleja incana, Buddleja coriacea y Solanum acaule. Concluimos que la riqueza de plantas útiles en la comunidad de Acopia es relativamente alta comparada a otros lugares, sin embargo, sus poblaciones vienen siendo amenazados por impactos originados por la pérdida de sus hábitats, incendios y desinterés en la revaloración por parte de pobladores más jóvenes.
Efectos de la caza de vertebrados frugívoros sobre la dispersión de semillas en bosques amazónicos de la cuenca del Río Madre de Dios, Perú
Authors: Jurado-Rojas Edwin E. , Swamy Varun , Chillihuani-Coronado Juan J.
Published: February 2023

Los vertebrados frugívoros en los bosques amazónicos enfrentan fuertes presiones de caza en el presente, y su disminución o desaparición pueden desencadenar grandes cambios dentro del ecosistema. Presentamos los resultados de un estudio de la dispersión de semillas de especies forestales consumidas por frugívoros arbóreos en tres localidades de bosques inundables en la cuenca de Río Madre de Dios (Tambopata Research Center, Estación Biológica Los Amigos y Reserva Amazónica), que representan un gradiente de perturbación y densidad de vertebrados frugívoros. En cada sitio, se seleccionó un área de ~1 hectárea (104m x 104m) en donde se instalaron 196 trampas de semillas, distribuidas uniformemente por una gradilla de 14 columnas y filas. Cada 15 días durante un periodo de 135 meses, se colectó, identificó y registró semillas de las especies forestales con frutos carnosos encontradas en las trampas. Presentamos los datos analizados de 10 especies forestales (7 familias) dispersadas principalmente por primates, aves y/o murciélagos frugívoros. Los resultados muestran que la reducción de densidad de los vertebrados frugívoros grandes afecta la dispersión de semillas de especies forestales que dependen principalmente por estas especies, mientras otras especies forestales que no dependen de dispersores cazados son menos afectadas. Se necesita realizar más estudios a largo plazo que permitan una evaluación más rigurosa de las consecuencias de la desaparición de grandes vertebrados frugívoros arbóreos sobre la ecología de regeneración en los bosques de la región de Madre de Dios.
Diversidad de palmeras en la Amazonía baja de las regiones Loreto, Madre de Dios y Ucayali, Perú
Authors: Grández-Rios César Augusto , Balslev Henrik , Angulo-Villacorta Carlos Darwin , Pezo-Diaz Roberto
Published: February 2023

El objetivo del presente trabajo fue determinar la diversidad de palmeras en tres regiones de la Amazonía baja (Loreto, Ucayali y Madre de Dios). El estudio fue realizado durante el Proyecto desarrollado en los años del 2004-2013, en el marco del proyecto Palms. Se inventariaron 354 transectos de 5 × 100 m totalizando 88,50 hectáreas de área evaluada en las tres regiones. En la región Loreto fueron realizados 239 transectos en Ucayali 38 transectos y Madre de Dios 77 transectos. Se registraron un total de 97 especies y 6 morfotipos. En Loreto, Oenocarpus bataua “hungurahui” fue la más abundante con 28,898 ind. (10 % total de los ind.), en Ucayali Lepidocaryum tenue “irapay” con 14,379 ind. (20% del total de ind.) y en Madre de Dios Geonoma deversa “palmiche” con 5,743 individuos con el (20 % del total de individuos). Loreto fue la región con mayor diversidad de especies con 3,601, Ucayali con 3,061 y Madre de Dios con 2,839. Entre Loreto y Ucayali hubo una similitud de 73% y entre Ucayali y Madre de Dios 47 % y entre Loreto y Madre de Dios 35%. Nuestros resultados muestran que la mayor abundancia y diversidad de especies de palmeras en la parte baja de la Amazonía Peruana se encuentra en la región Loreto, seguido de Madre de Dios y Ucayali.
Validación del nombre Tachigali rodolfo-rocioii (Leguminosae), con la diagnosis corregida
Authors: Huamantupa-Chuquimaco Isau
Published: February 2023

El epíteto Tachigali rodolfo-rocioii (Huamantupa Chuquimaco et al., 2021) no es válidamente publicado porque la descripción de la diagnosis en castellano, lo que dio lugar a que en la publicación no se reconozca al nuevo taxón, de acuerdo con el Código Internacional de Nomenclatura (ICN) el castellano no es un idioma oficial para ser utilizado en las diagnosis de nuevas especies. Por lo expuesto, en la presente contribución se elabora una nueva descripción diagnosis en inglés para que este epíteto sea válido.
Se corrige la descripción diagnosis de Tachigali rodolfo-rocioii, para su validación, de acuerdo al ICN, capítulo 5, publicación válida de nombres, sección 2 para nuevos taxones, artículo 39.2 (Turland & Turland, 2018), menciona que “después de enero del 2012 un nuevo taxón publicado debe ser acompañado por la descripción diagnosis en latín o inglés”.
Heavy Metal Tolerance and Toxicity Studies on- Indigenous Microflora and its Application for Bioremediation
Authors: Jha Shubhangi , Sharma Pragya Kulkarni and Anamika
Published: February 2023

Heavy metal (HM) contamination is a persistent environmental problem in many countries. Pesticides, organic compounds, paints, industrial and mining waste, and heavy metals (HMs) are the primary drivers of soil pollution. It is critical to clear up soils contaminated by HMs. It is beneficial to investigate the areas of HM bioremediation employing hybrid technologies, genetically engineered microorganisms with improved bioremediation potential techniques. In the present study three abundantly growing indigenous microbial isolates (Bacteria- Rhizobium and Azotobacter and Fungi- Aspergillus) were cultured using suitable growth media to obtain large biomass. These indigenous species have ability to grow in mass quantity under ideal conditions at minimal efforts. The isolates were then tested for their tolerance to heavy metals Cr, Hg, Cu, Zn, and Mg under experimental settings using MIC and the broth dilution technique at various concentrations (100,300 and 500ppm for bacteria and additionally 1000,3000 and 5000ppm for fungi). All the three isolates showed various degree of tolerance for selected heavy metals. Aspergillus fumigatus responded best among all.
BOUNDARY KNOT METHOD SOLUTION OF GROUNDWATER FLOW IN UNCONFINED AQUIFER
Authors: Muzik Juraj
Published: February 2023

The groundwater flow problems are often solved using numerical models. The numerical models based of known fundamental solution, known as Trefftz methods, represents one of the efficient approaches used to solve potential flow phenomena described by the Laplace differential equation. The Trefftz-like methods, such as the boundary element method (BEM), represent a very efficient approach to solving groundwater flow problems. However, the implementation of BEM is cumbersome because of the fundamental solution singularity, and also there is a very limited number of software suites using BEM. The localized boundary knot method (LBKM) eliminates the drawback of boundary meshing and evaluation of singularity of fundamental solution as in BEM. The LBKM uses the known general solution to avoid the singularity evaluation, and the dual reciprocity approach to evaluate the true solution residual. This paper proposes a numerical model that implements the localized boundary knot method (LBKM) for 2D groundwater-free surface flow simulation.
NUMERICAL ANALYSIS FOR CAVITY EFFECT ON ANCHOR PLATE CAPACITY
Authors: Naji Ali Abdulhasan , Mustatea Florin Sebastian , Aziz Laith Jawad
Published: February 2023

Infostructures element increased in demand last forty years, these elements provide increasing in the resistance of structures and service age. Due to the difficulty of studying the behavior of parts that embedded in soil special for the anchor plate. A numerical study was adopted to study the behavior of anchor plate inside the soil to see the deformations and the stress that deform inside the soil, also the reaction of soil companion under the effect of this loads. Abaqus is a complete program used to solve the equilibrium equations of a finite element modeling, which is used in the present study to analyze an anchor plate case embedded into the loose sandy soil and subjected to vertical uplift load. The contribution of this paper represents a numerical analysis of a case study representing the influence of a horizontal anchor plate embedded in soil under effect of cavity. The results show the effect of the cavity location on the resistance area of the anchor and the overturning capacity of the anchor to resist the uplift loads.
USE OF SPECIALIZED PROGRAMS IN ANALYSIS OF THE LONEA MINE VENTILATION NETWORK
Authors: Boanta Corneliu , Gherghe Ion , Tomescu Cristian , Radoi Florin , Chiuzan Emeric
Published: February 2023

The Valea Jiului coal basin is the largest mining basin in Romania and includes from east to west the mining fields: Lonea, Lonea-Pilier, Petrila-Sud, Petrila, Livezeni, Salatruc, Dalja, Iscroni, Aninoasa, Vulcan, Paroseni, Lupeni , Lupeni-Sud, Barbateni, Uricani, Valea de Brazi and Campu lui Neag.
The first opening works in the Lonea perimeter began with the excavation of the Rascoala gallery, in 1870, a gallery supported by brickwork. Also in the same period, the up-to-date exploitation of the outcrops from the Jiet Valley area and the neighboring valleys is proposed.
The general ventilation of the Lonea mine is ascending under the influence of the general depression created by the three main ventilation stations. The analysis performed on the Lonea mine ventilation network leads to the conclusion that the mine ventilation network is particularly complex, a complexity amplified by the large number of air control and regulation constructions.
In order to evaluate in perspective the influence of the changes that will occur in the ventilation network of the mine regarding the distribution of air currents both in size and in the direction of their flow, of the locations of the constructions for directing and regulating air flows, as well as the types of ventilation mining constructions that are necessary for the desired distribution, modeling and simulation programs were used that allow the option of visualizing the network in three and two-dimensional system, for the representation of the ventilation network of the Lonea mine.
This paper presents the analysis of the complex ventilation network of the Lonea Mine with the help of specialized programs.
ABANDONED LOCATIONS AFTER MINERAL EXPLORATION - ENVIRONMENTAL BURDEN OR PERSPECTIVE SOURCES OF RAW MATERIALS?
Authors: Sottnik Peter , Farago Tomas , Brachtyr Ondrej , Vozar Jaroslav
Published: February 2023

Mining wastes represent a specific type of waste and, like sites after mining, represent sites where a comprehensive assessment of pollution at these sites needs to be approached, taking into account various specific conditions. Subsequently, the design of the remediation technologies used at a specific location must also be adapted to this fact.
Until now, mining waste facilities (heaps and sludge ponds) have been treated as environmental burdens. However, it should be borne in mind that abandoned extractive waste facilities may be a significant source of minerals in the future, due to improved treatment technologies and combined with new requirements in the raw materials market (requirements for new useful components that have not been mined in the past). Many extractive waste facilities also contain elements that are currently listed as critical raw materials for the European Union.
Within the project APVV-17-0317 "Antimony - a critical element and a dangerous contaminant affecting biodiversity in mining sites" a preliminary survey and research was carried out at selected sites in order to determine the potential of deposited materials as secondary sources of minerals. Samples of flotation sludge used in our research were taken at the localities of Dubrava, Medzibrod and Cucma from tailing ponds after the extraction of antimony, which is one of the critical raw materials for the EU.
GEOPHYSICAL EXPLORATION OF ANTIMONY MINERALIZATIONS: ALTO DO SOBRIDO AND RIBEIRO DA SERRA MINES (PORTUGAL)
Authors: Carvalho Ana , Ribeiro Ricardo , Moura Rui , Lima Alexandre
Published: February 2023

The Alto do Sobrido and Ribeiro da Serra Mines, are two antimony-gold mines located in Gondomar, Portugal, and are part of the Durico-Beirao Mining District (DBMD). In this work, we use four geophysical methods, such as gravity, radiometry, magnetic and electromagnetic, to improve the knowledge about these mineralizations and the lithologies and structures associated with them. These four methods allowed us to study these mineralizations through different physical properties.
The gravimetric method allowed us to add more data to the hypothesis that the goldantimony mineralizations of the DBMD could be genetically associated with a nonoutcropping granite intrusion, which functioned either as a heat engine that promoted the circulation of fluids and/or as a source of fluids and metals itself. A 2D model was proposed, created with both modelling and inversion, to show that the presence of this granite could indeed fit the response of the negative anomalies found in the residual anomaly.
The radiometric method was used mainly as a mapping tool, where we were able to distinguish between some of the lithologies of the area, like the Lower Ordovician quartzites and the metasediments of the Middle Ordovician to the Carboniferous, but also to observe different element concentrations within the Pre-Ordovician SchistGreywacke Complex (SGC). These variations within the SGC lithology don�t have a clear explanation as to why they occur. Still, we believe that they could occur due to the influence of the abovementioned non-outcropping granite.
With the very low frequency (VLF) electromagnetic method, it was possible to locate areas of lower resistivities that correspond to the location of several known mineralized veins, as well as the probable location for a new vein. It was also possible to observe some weathered rocks near faults and fractures associated with the Durico-Beirao Shear Zone (DBSZ).
With the magnetic method, it is possible to contribute to areas with the prevalence of lithologies and minerals with higher magnetic susceptibilities. Several magnetic anomalies found near the Alto do Sobrido mining works correspond to the mineralized veins paragenesis. Other anomalies appear to be related to the location of faults and fractures associated with the DBSZ.
The use of all these methods allowed us to observe the mineralization responses and its associated lithologies and structures through the different geophysical properties while adding knowledge about the genesis of these mineralizations and possibly the location of new mineralized veins.
SAFETY IN THE MINING INDUSTRY
Authors: Matei Andrada Denisa , Ghicioi Emilian , Morar Marius Simion , Florea Daniel
Published: February 2023

Underground mining remains one of the most dangerous occupations in the world, and coalmining is known for its high accident rates. In this paper we aim to present an overview of safety in the extractive industry and we will present statistics on known accidents. The repeated occurrence of explosions in underground mining raises questions about the measures taken to prevent their occurrence. Hazard identification and risk analysis are necessary to identify adverse events that may lead to a hazardous situation, to analyze the mechanism by which this adverse event may occur and usually to estimate the magnitude and likelihood of effects.
SUBSTANTIATION OF THE USE OF POLYMER-COMPOSITE MATERIALS, WHICH REDUCE THE INFLUENCE OF DYNAMIC FRICTION FORCES OF MACROSTRUCTURAL SURFACES, WHEN DRILLING WELLS
Authors: Chernova M. , �untsyak Y. , Ratov B. , Sudakov A. , Nuranbayeva B.
Published: February 2023

The article justifies the need for technological solutions in the use of polymer-composite materials in order to limit the impact of dynamic frictional forces in oil drilling. The relationship between macrostructural surfaces was investigated, in particular increasing the effectiveness of the axial load on the drill bit during drilling directional and horizontal wells. It is established that the polymer coating of drill string elements (BC) based on fluoroplastic brand F-4, with a small thickness of 2 ? 3 mm and the appropriate application technology provides high physical and technical characteristics of this coating and under operating conditions has a low coefficient of wear on large functioning friction, which is about 4 ? 7.5 km. The surface of the drill string, covered with a polymer coating, in the trapped areas, with a low coefficient of friction (~ 0.025) is not capable of trapping. To reduce friction forces, the use of polymer-composite materials (PCM) to cover the surface of the elements of the drill string is proposed. Methods and mathematical models are given, due to which it is possible to obtain PCM with predetermined physical and mechanical properties that would meet the requirements of the operation of drill columns during drilling of inclined and horizontal wells. The obtained results of laboratory, analytical and industrial researches guarantee increase of efficiency of adjustment of axial loading on the rock-destroying instrument influencing mechanical speed of drilling.
VARIATION OF AIR STATUS PARAMETERS IN PRESENCE OF METHANE, IN THE VENTILATION DUCTS INSTALLATIONS
Authors: Gherghe Ion , Cioclea Doru , Matei Adrian , Dragoescu Razvan , Camara?escu Alexandru
Published: February 2023

The main role of ventilation systems and especially air conditioning systems is to create indoor conditions and air quality inside the rooms that are independent of external atmospheric influences. The sizing of ventilation systems and especially of air conditioning systems is done, in most cases, by considering the climatic elements as a basis for calculation. The real limit to air quality insurance it consists in maintaining in the air certain concentrations of harmful substances which do not endanger human health and do not create discomfort. The air condition parameters of interest for the ventilation and air conditioning technique are air temperature and humidity, atmospheric pressure and air velocity. For this study, in the experimental laboratory, the test was performed on the variation of the air condition parameters in the conditions of conveying a quantity of methane gas through the ventilation duct.
During the experiment, the operating parameters of the drive motor were changed using a frequency converter on levels 50; 40; 30; 20; 10 and 5 Hz. The ventilation system used was structured by means of flow converters which were fixed in the open position. The ventilation system as well as the flow variators were operated by the SCADA type command and control system. The paper will present the analysis of the variation of the state parameters (temperature, humidity, absolute pressure and air velocity) by introducing a constant amount of methane gas in the ventilation duct.
BENEFICIATION OF A WOLLASTONITE MINERAL
Authors: Surracco Marco , Tilocca Maria Caterina
Published: February 2023

In the paper are reported the results of the first stage of tests performed to verify the possibility of beneficiation of a wollastonite mineral (calcium metasilicate, CaSiO3). The studied ore comes from a mineralized body located in the southern part of Sardinia (Italy), in the area named "Gutturu Is Abis". The mineralized body is composed of wollastonite associated with limestone, garnets and silica. The approach to the problem has consisted of grinding tests followed by flotation tests to separate the wollastonite from the gangue minerals, mainly calcite. The effectiveness of the various steps of testing was verified by comparing the results obtained with the specifications required by the wollastonite market, which impose minimum quantities of contaminants, such as iron, titanium and magnesium, while being less severe regarding SiO2 and CaO contents. In consideration of the rather high content of calcite present in the feed material and of its better floatability compared to wollastonite, we first proceeded to its direct flotation, using as collector an industrial olein in aqueous emulsion. Sodium silicate in aqueous solution was used as a depressant. The best flotation results were obtained at basic pH values. A Denver laboratory flotation cell was utilized to perform the tests. Starting from an alimentation with a wollastonite content of 73.65%, the flotation process employed resulted in a product with 81.31% wollastonite.
APPLICATION OF THE PHASE-METRIC METHOD IN THE PROBLEMS OF GEOTECHNICAL CONTROL OF THE DRILLING PROCESS
Authors: Bykov Artem , Surzhik Dmitry , Vasilyev G. S. , Kuzichkin O. R. , Bondarik K.V
Published: February 2023

During the process of drilling wells, it is necessary to have information about the composition of the soil layers through which the drill passes. This will optimize the parameters of rotation of the drill, the load on the drill, as a result of which equipment wear will be reduced. It will also make it possible to lay optimal trajectories during well drilling and track the penetration of the drill into the target layer. This issue is especially relevant for the oil industry, where production is carried out at great depths with a complex structure of soil and rocks. Obtaining this information becomes possible due to the control of the phase changes of the probing electrical signal on the receiving lines of the electrodes of the geoelectric monitoring system.
This article discusses the use of the phase-metric method in relation to the problems of controlling the process of drilling wells, and gives an overview of the technical aspects of vertical electrotomography by the phase-metric method. A description of a laboratory experiment on the study of the effectiveness of the control of the drilling process by the phase-metric method is given. A study of the dynamics of changes in the phase signals of the receiving lines of electrodes in the process of passing through soil layers with different characteristics is shown, which affects the change in the parameters of the probing electrical signal. The research results are accompanied by graphic material confirming the metrological possibilities of the proposed phase-metric method. This will optimize drilling parameters in real time.
SMALL COMPONENT IGNITION TESTS � UNCERTAINTY ESTIMATION
Authors: Darie Marius , Csaszar Tiberiu , Burian Sorin , Moldovan Lucian , Colda Cosmin
Published: February 2023

The paper presents issues regarding uncertainty involved in the test process to ignition of small components for intrinsically safe equipment. In the first part of the paper, the classification of explosion-protected equipment is presented. In power generation and also in other industrial areas, the incidence of flammable substances is a common factor. As a consequence of this, the risk of explosion may arise. On the other hand, installations located in areas endangered by the presence of flammable substances must remain in operation and therefore live. The equipment in the installations must be assessed, tested, and certified for use in explosive atmospheres if they are to be operated safely. In the second part, the requirements of the intrinsically safe type of protection and the necessary aspects of ignition testing of small components are presented. The third part presents the model for uncertainty assessment of the testing mixture and the uncertainty in the determination of the temperature of the component under test. The results obtained are also presented and discussed. The approach concludes that the resulting uncertainty in the test process does not significantly affect the test results.
COMPUTER SIMULATION USE IN DESIGN GATING SYSTEM OF CAST MADE FROM THE CAST IRON
Authors: Futas Peter , Sabik Vladimir , Petrik Jozef , Blasko Peter , Fogaras Lukas
Published: February 2023

Computer simulation of foundry processes is an essential part of a modern foundry. The role of the gating system, its design and different elements are important in casting. Experimental verification of the designed gating system for new castings is costly, timeconsuming and economically inefficient. Therefore, these processes in the foundry are replaced by computer simulation. A detailed analysis of the simulation results makes it possible to predict various risks that may cause a failure in the quality of casting production and thus the quality of the entire production process. The article deals with by simulating the filling and solidification of the new cast iron casting "Fun Pump Support". Two types of gating systems were created for the given casting, which were subsequently subjected to computer simulation of filling and solidification. 3D models of the Casting and Gating Systems were designed in SolidWorks CAD software. Computer simulation of filling and solidification was performed using the simulation program NovaFlow&Solid CV 4.6r42. The results of the simulations showed that the design of the gating system reduced the amount of liquid metal used for casting, which has significant economic effects in series production. Several simulations of filling and solidification of the developed technological system were designed, while the density of the network, the conditions of casting and solidification were determined so as to be as close as possible to the actual needs of the foundry. The gating system was modified to eliminate casting defects (shrinkages) that occurred during the solidification process, as well as to increasing the utilization of liquid metal.
CYBER SECURITY IN THE HEALTHCARE SECTOR - CURRENT THREATS
Authors: Kotkova Barbora
Published: February 2023

Information technology is a common part of human activities today. In most countries of the world, the security, health, and industrial sectors can be established here. The dependence of these sectors on information technology has been significantly strengthened by the global covid-19 pandemic and the current war in Ukraine. Data digitization has brought positives such as availability, fast transmission, and processing of necessary information. As well as negatives as constant attempts to steal, destroy or abuse them. Health care is one of the sectors where it is the target of not only enrichment attacks, but also terrorist motives - the attack causes chaos and panic among the population. The number of such attacks increased dramatically during the covid - 19 pandemic and the military conflict in Ukraine. The article is therefore intended to point out the need for constant evaluation of changing environmental influences and motivations for attacks with regard to the topicality of security. The introduction of the article contains a theoretical framework of the issue with a description of the motivation and behavior of the offender. It goes on to list the most common ways of conducting cyber-attacks. Significant attacks on hospitals in the Czech Republic and around the world are also mentioned. It focuses on their motivation, success and damage caused. Finally, the common characteristic strengths and weaknesses of the SWOT method are evaluated, followed by opportunities and threats. In the end, the current extended recommendations follow the current routine operation of security procedures with an emphasis on changes and new threats in the global environment.
DEFENCE SYSTEMS AGAINST DRONE ATTACKS
Authors: Kotkova Barbora
Published: February 2023

Large European airports have now been forced to close several times due to the disruption of their protected area by drones. The biggest incident in terms of damage and restrictions clearly includes the attack of 19 and 21 December 2018 on one of the largest airports in Europe, London - Gatwick. All air traffic was interrupted, and flights were canceled and postponed. It was only a matter of time before drone technology was used by terrorist organizations and other criminals for their attacks. The article discusses the dangers that drones can cause. It describes the various basic categories of drones, their historical development, and the beginnings of the misuse of drones by terrorist organizations. The types currently used by the armed forces in the war in Ukraine are also mentioned. Furthermore, the article deals with systems that aim to eliminate this threat and which are available to companies and individuals financially. Thus, drone defense systems were selected and compared with a detailed description of their detection and destruction methods. The article concludes that a modern anti-drone defense for soft targets has already been developed and a set of recommendations for their combination and implementation follows.