bluuebunny/crossref_metadata_2025 huggingface dataset:
Meningkatkan Akses dan Kesadaran Akan Kesehatan Melalui Mobile Clinic: Studi Kasus di Desa-Desa Terpencil
Authors: Sulistyo Arif Budi , Mamonto Samuel , Khairunnisa  , Dewi Ni Luh Yulyana , Florencia Olivia Grace Brigitta
Published: October 2023

Keberadaan desa kecil merupakan suatu bagian dari negara Indonesia yang tidak dapat dipisahkan. Namun sayangnya masyarakat desa terpencil sering kali tidak memiliki akses terhadap kebutuhan-kebutuhan dasar, seperti akses kesehatan. Penelitian ini kemudian melihat mengenai bagaimana akses dan kesadaran masyarakat desa terpencil dapat ditingkatkan melalui kehadiran Mobile clinic. Penelitian ini dilaksanakan dengan melihat bagaimana implementasi dan metode penerapan Mobile clinic di desa-desa terpencil. Hasil dari penelitian ini kemudian menemukan bahwa Dalam upaya meningkatkan akses dan kesadaran akan kesehatan di desa terpencil, peran Mobile clinic telah terbukti sangat penting. Mereka mengatasi kendala aksesibilitas dengan membawa layanan kesehatan langsung ke pintu penduduk desa, memastikan bahwa mereka yang sebelumnya terpinggirkan mendapatkan perawatan medis yang diperlukan. alam menghadapi tantangan ini, Mobile clinic harus memanfaatkan teknologi, membangun hubungan yang kuat dengan komunitas, dan menjadikan pendidikan kesehatan sebagai bagian integral dari layanan mereka. Dengan komitmen yang kuat untuk mengatasi tantangan ini, Mobile clinic dapat terus berperan sebagai alat yang efektif dalam meningkatkan kesehatan dan kesejahteraan masyarakat desa terpencil.
THE PROBLEM OF ESTABLISHING THE INFORMATION CIRCUMSTANCES OF FORGERY OF DOCUMENTS IN THE FIELD OF MEDICAL CARE OF THE POPULATION (BASED ON THE MATERIALS OF THE REPUBLIC OF KAZAKHSTAN)
Authors: Воеводкин Д.В.
Published: October 2023

Автором рассмотрены особенности обстановки, места и времени со-вершения преступлений, связанных с подделкой документов в сфере медицинского об-служивания населения, как самостоятельных элементов криминалистической характе-ристики. Проанализированы закономерные особенности, присущие рассматриваемой разновидности преступлений и влияющие на возникновение взаимосвязи между ме-стом и временем их совершения, а также образующих их обстановку. Материалы и методы. Нормативную основу исследования образует уголовное законодательство Республики Казахстан в части регламентации ответственности за подделку документов в сфере медицинского обслуживания населения, а также труды ученых криминалистов, раскрывающих такие элементы криминалистической характе-ристики, как обстановка, время и место совершения преступлений. Методологической основой исследования послужил общий диалектический метод научного познания, но-сящий универсальный характер, а также методы логической дедукции, индукции, при-емы обобщения и описания. Результаты исследования. Даны практические рекомендации по использова-нию выделенных особенностей при расследовании преступлений, связанных с фальси-фикацией документов в сфере медицинского обслуживания населения. Выводы и заключения. Результаты исследования позволили обобщить наибо-лее типичные обстановку, время и места совершения преступлений, связанных с под-делкой документов в сфере медицинского обслуживания населения.

the author considers the peculiarities of the situation, place and time of the commission of crimes related to forgery of documents in the field of medical care of the population as independent elements of criminalistics characteristics. he author analyses the regular features inherent in the considered variety of crimes and affecting the emergence of the relationship between the place and time of their commission, as well as forming their environment. Materials and Methods: the normative basis of the study is formed by the criminal legislation of the Republic of Kazakhstan regarding the regulation of liability for forgery of documents in the field of medical care of the population, as well as the works of forensic scientists who disclose such elements of forensic characteristics as the situation, time and place of crimes. The methodological basis of the research was the general dialectical method of scientific cognition, which has a universal character, as well as methods of logical deduc-tion, induction, generalization and description techniques. The Results of the Study: practical recommendations are given on the use of the high-lighted features in the investigation of crimes related to falsification of documents in the field of public health care. Findings and Conclusions: the results of the study made it possible to summarize the most typical situation, time and place of crimes related to forgery of documents in the field of medical care of the population.
The use of CT analysis in revealing structural heterogeneity of freshwater carbonate decoration and construction stones
Authors: Alzoubi Nour , Gulyás Sándor , Geiger János
Published: October 2023

This article presents the findings of a CT analysis conducted on freshwater carbonate rocks found in the Danube-Tisza Interfluve. These rocks are utilized for both construction and decoration purposes in the medieval buildings of the region. The aim of the study was to uncover some petrophysical properties of the rocks deriving from the Csólyospálos quarry. The proportions of the main constituents of the rocks carry significant information about the formation and alteration history of sedimentary rocks. To comprehend and assess the nature of these processes, as well as the resulting spatial variations, it is necessary to gather quantitative data on the distribution of these constituents at both macro- and microscales. The researchers employed an EMmixture analysis that considered the density differences among the individual constituents to determine the quantitative characteristics of the main components that form the rocks. By setting a threshold value to distinguish macropores (empty spaces) with lower density values from the solid matrix, the percentage of voids was calculated for each CT slice. The distribution of these voids was examined in three dimensions along all possible axial directions (X, Y, Z). Watershed algorithm, and Laplace operator were applying on selected CT slices that corresponded to areas with similar compositional features. This approach helped identify potential flow directions within the rocks. The spatial distribution and orientation of macropores, which could be visualized using CT at a resolution of over 200 microns, provided valuable insights into the paths through which water could enter the carbonate rocks used for construction or decoration. This information is crucial in understanding structural damage caused by frost weathering and dissolution via capillary action once a staticstate flow is established. Furthermore, these findings complement the results obtained from laboratory geotechnical measurements.
PREPARATION OF BIODEGRADABLE PLATES FROM SUGARCANE BAGASSE
Authors:   Industrial Chemistry, Applied Science, Parul University, Patil Paresh , Patel Miss Unnati
Published: October 2023

Saccharum officinarum is a natural result that remains as dry, stringy deposits. It is likewise being thought of as an option in contrast to wood in the creation of endlessly paper items. In numerous tropical & subtropical nations like India, China, Colombia, Iran, Thail&, & Argentina, Bagasse is normally utilized rather than wood in the development of mash, paper & board. This replacement produces mash with actual properties that are appropriate for printing & journal paper, tissue items, boxes, & newspapers. It can likewise be utilized for making sheets looking like compressed wood or molecule board, realized called bagasse sheets & Xanita sheets. These are broadly utilized in the creation of partitions & furniture. Waste sugarcane is dried in sunlight & Bagasse is extracted from it & purified using various chemical & mechanical techniques. Natural gum, that is all purpose flour has been used as binding agent. Shaping the biodegradable plate has been done from press moulding machine. Various properties such as moisture content, E. coli, Coliform, Salmonella. Yeast & Mould are tested from Analytical & environmental lab. So, from the synthesis, it concludes that the biodegradable plate manufactured from Saccharum officinarum plant are cheaper, as raw materials are easily available. Key Words: sugarcane bagasse, biodegradeable, lasers, templates, journals
Phase Changing Materials
Authors:   Department of Civil Engineering, UG Student, G H Raisoni College of Engineering & Management, Pune, 412207., Mali Ujjwal , Shingane Umesh , Sarkate Vivek , Davhale Sangram
Published: October 2023

Building envelope is a key element in providing adequate energy and thermal comfort performance to buildings. The main techniques adopted in this context are discussed to identify modern and effective methods with a particular focus on phase change materials (PCMs). Incorporating PCMs with building construction materials is a booming technology, owing to their enhancement potential of storing and releasing heat during phase transition. This work highlights the importance of PCMs in building envelope, focusing on roof and external wall applications. PCM types, general and desired properties and application area are presented and discussed. Incorporation techniques and methods, main numerical tools, and modelling equations are used to describe the thermal behaviour of PCM. A comprehensive assessment on the basis of recent studies has been conducted to point out the potential of PCM with the most appropriate techniques under different locations. The main findings of PCM thermal performance have been described, considering the cooling/heating load reduction, energy-saving and thermal comfort gained. Keywords: PCMs, PCM-integrated buildings, Building envelope, Thermal comfort, Energy saving, Heating/cooling load reduction.
Research on Detection of Brain Tumor using MRI Images in Machine Learning
Authors: Sharma Naman , Mhatre Vaibhavi , More Pooja , Sonawane Aniket
Published: October 2023

Abstract—Brain tumor is the growth of abnormal cells in the brain some of which may lead to cancer. The usual method to detect brain tumors is Magnetic Resonance Imaging(MRI) scans. From the MRI images information about the abnormal tissue growth in the brain is identified. In various research papers, the detection of brain tumors is done by applying Machine Learning and Deep Learning algorithms. When these algorithms are applied on the MRI images the prediction of brain tumor is done very fast and a higher accuracy helps in providing the treatment to the patients. These predictions also help the radiologist in making quick decisions. Keywords- Brain Tumor, Machine learning, MRI Images
PENGARUH GAYA KEPEMIMPINAN, KOMPENSASI DAN LINGKUNGAN KERJA TERHADAP TURNOVER INTENTION DENGAN STRES KERJA SEBAGAI VARIABEL INTERVENING
Authors: Suganda Hady , Sutrisno  , Setyorini Noni
Published: October 2023

This study attempts to investigate and analyze how leadership style, pay, and workplace environment affect employees' intentions to leave their jobs, with work stress acting as an influencing factor. There are 186 respondents in the research sample, all of whom work at Sarong Goyor UMKM in Pemalang Regency. This study used probability sampling, which uses a straightforward random sample procedure. The study data is handled using SmartPLS 3.0 software, and data analysis is done using the PLS-SEM (Partial Least Square-Structural Equation Model) methodology. The findings reveal the following results: Leadership style does not significantly affect turnover intention in Sarong Goyor UMKM in Pemalang Regency, as indicated by a P-Value of (0.281). Compensation has a significant impact on turnover intention in Sarong Goyor UMKM in Pemalang Regency, with a P-Value of (0.000). The work environment does not significantly influence turnover intention among Sarung Goyor UMKM in Pemalang Regency, with a P-Value of (0.799). Work stress does not significantly affect turnover intention, as indicated by a P-Value of (0.343). Leadership style does influence turnover intention, which is mediated by work stress, with a P-Value of (0.046). Compensation also has an impact on turnover intention, mediated by work stress, with a P-Value of (0.006). The work environment influences turnover intention, and this effect is mediated by work stress, with a P-Value of (0.000).
О ПРЕВЫШЕНИИ НОРМАЛЬНОГО УРОВНЯ ВОДЫ В ВОДОХРАНИЛИЩАХ
Authors: АХРЕМЕНКО А.И.
Published: October 2023

Рассматривается ситуация с превышением нормального уровня воды в Горьковском водохранилище в январе - феврале 2020 г. и анализируются ее причины. Показано, что, хотя превышение нормального уровня в отдельных случаях допускается, это иногда приводит к весьма неблагоприятным последствиям, которые желательно предотвращать. Тем более, что инструменты регулирования стока посредством водохранилищ это вполне позволяют делать.
Effect of Adding Physiotherapy Program to the Conservative Medical Therapy on Quality of Life and Pain in Chronic Rhinosinusitis Patients
Authors: Fouda Khaled Z. , Eladl Hadaya M. , Ameer Mariam A. , Allam Nesma M.
Published: October 2023

Objective: To assess the effectiveness of combining physiotherapy techniques with conservative medical treatment in chronic rhinosinusitis (CRS) patients. Methods: Sixty-eight volunteers with CRS were randomly assigned. Group A received only traditional medical treatment, whereas group B received a physiotherapy program that included pulsed ultrasound therapy, sinus manual drainage techniques, and self-sinus massage technique in addition to traditional medical treatment. Interventions were applied 3 sessions a week for 4 weeks. The rhinosinusitis disability index (RSDI) served as the main outcome indicator for assessing the quality of life, and the secondary outcome measure was the pressure pain threshold (PPT) using a pressure algometer. Results: Wilcoxon signed rank test revealed a significant reduction (p<0.001) in total RSDI values from 71.08±1.13 pretest to 47.14±1.15 posttest for group A, while it decreased from 70.64±1.20 pretreatment to 31.76±1.04 posttreatment for group B; furthermore, Mann–Whitney U-test revealed a significant difference (p<0.001) in total RSDI values between both groups when comparing the change of the pre-post data values, it was 23.94±0.95 for group A and 38.88±0.67 for group B. The independent t-test revealed a highly statistically significant increase (p<0.001) in the PPT values in the experimental group compared to the control group.Conclusion: The physiotherapy program which included pulsed ultrasound therapy, sinus manual drainage technique, and self-sinus massage technique in conjunction with conventional medical treatment was more beneficial for enhancing the quality of life and PPT than traditional medical treatment alone in CRS patients.
De wijziging van de Handhavingsrichtsnoeren van de Commissie inzake uitsluitingsmisbruik: een stap terug of een stap vooruit?
Authors: Pijnacker Hordijk Erik
Published: October 2023

De wijziging van de Handhavingsrichtsnoeren van de Commissie inzake uitsluitingsmisbruik: een stap terug of een stap vooruit?

Dit artikel bepreekt de recente wijziging door de Europese Commissie van haar richtsnoeren inzake handhavingsprioriteiten bij de toepassing van artikel 102 VWEU op gevallen van uitsluitingsmisbruik. Omdat deze wijzigingen vooral zijn ingegeven door de ontwikkelingen in de jurisprudentie sedert de totstandkoming van de oorspronkelijke richtsnoeren in 2008, wordt met name aandacht besteed aan die jurisprudentiële ontwikkelingen. De wijzingen worden aldus in context geplaatst. Ook worden enkele kritische kanttekeningen geplaatst bij de wijzigingen.
SILK FABRICS COATED ZnO NANOPARTICLES AND DYEING WITH NATURAL INDIGO TO ENHANCE FUNCTIONAL TEXTILES
Authors: Tangkawanit Sudaporn , Keawsri Piriyaporn
Published: October 2023

Silk fabrics are modified by dyeing with natural indigo and ZnO nanoparticles coating to enhance functional textiles. Silk fabrics are coated with different weight of 1, 2, 3, and 4 g of ZnO nanoparticles. The properties of coated silk fabrics and color fastness of fabrics dyed were investigated. The FE-SEM and EDS results of the coated silk with ZnO nanoparticles were clearly confirmed the strongly adsorption bond of ZnO on the surface of silk adsorbent. Silk coated 3 g ZnO nanoparticles also provide optimal condition as the presence of Zn content on silk surface remain contain approximately 79.00, 76.84, and 75.95 wt%, which was slightly decreased after repeated 10, 20 and 30 washed cycles, respectively. Coated silk fabrics samples and indigo dyed exhibited excellent anti UV protection with UPF values in the range of 49.31 to 105.83. ZnO nanoparticles modified silk fabrics can be used for improved washing fastness of natural indigo dyed, UV protection, heat resistant, color fastness and durability of antibacterial.
O sofrimento psíquico de mulheres que se encontram em tratamento da endometriose
Authors: Barão Francisca Sidiane Lima , Guimarães Raiciara Paz , De Castro Emanuelle Viana , De Souza Júlio César Pinto
Published: October 2023

A endometriose atualmente é considerada a doença da mulher moderna, no entanto pouco se fala sobre seus impactos psicológicos na vida das portadoras da doença. Este projeto possui o objetivo geral de compreender o sofrimento psíquico das mulheres que se encontram em tratamento da endometriose. Para a elaboração desse projeto optou-se por utilizar uma abordagem quantitativa-qualitativa, cunho descritivo e de campo e como instrumento foi utilizado uma entrevista semiestruturada. Os resultados sobre o impacto psicológico nas mulheres em tratamento para endometriose foram divididos em três etapas, cada uma com tópicos específicos. Na primeira etapa, explorou-se a percepção das mulheres sobre o tratamento, abordando temas como diagnóstico, tratamento, falta de especialistas e acessibilidade. A segunda etapa destacou transtornos mentais em mulheres com endometriose, com ênfase em ansiedade, depressão e uso de medicamentos. Por fim, a terceira etapa examinou as consequências do sofrimento psicológico na vida das mulheres, abordando impactos nas atividades diárias, apoio familiar e social, desânimo e possíveis impactos na fertilidade.
Impactos psicossociais associados aos fatores de risco e de proteção em crianças e adolescentes vítimas de violência sexual
Authors: Muniz Clara Eduarda Nascimento , De Carvalho Paula Roberta Bentes , Raposo Hethelen Awdry Alves , De Castro Emanuelle Viana , Da Rocha Wollace Scantbelruy
Published: October 2023

A violência sexual contra crianças e adolescentes é um problema global que deixa profundas marcas em suas vidas. Para abordar essa questão complexa, é essencial analisar os fatores de risco, os fatores de proteção e como eles podem afetar o bem-estar psicossocial das vítimas. O objetivo estabelece-se em compreender os impactos psicossociais associados aos fatores de risco e de proteção em crianças e adolescentes vítimas de violência sexual. Esta pesquisa foi uma revisão sistemática, de procedimento bibliográfico e com abordagem qualitativa. Os resultados preocupam-se em apontar os fatores de risco, bem como os de proteção, a fim de discutir a relação entre ambos, apresentando os impactos no bem-estar psicossocial das vítimas de violência sexual. A identificação precoce, o apoio emocional, o fortalecimento de fatores de proteção e a promoção de ambientes seguros são passos fundamentais na proteção das vítimas e na promoção de seu bem-estar psicossocial.
A importância da netiqueta nos ambientes virtuais: um estudo na LEDOC/CAFS
Authors: Dos Santos Elen Carvalho , Cavalcanti Ágata Laisa Laremberg Alves , Lustosa Maria do Carmo Gomes , Da Silva Paloma Vieira
Published: October 2023

O presente estudo evidencia o fenômeno da Netiqueta, partindo da seguinte problemática: Qual a importância de uma boa comunicação nos ambientes virtuais, para o processo de ensino e aprendizagem? Como objetivo geral buscamos compreender como a Netiqueta contribui para uma boa comunicação entre professores e alunos da LEDOC/CAFS nos ambientes virtuais. Teoricamente recorremos aos postulados de Kenski (2013), Manuelito (2020), Madalena (2013), Oliveira (2012), dentre outros. A investigação caracteriza-se como sendo qualitativa do tipo descritiva, sendo utilizado o questionário eletrônico como instrumento de coleta de dados, respondido por 16 (dezesseis) participantes, através da plataforma Google Forms. Os resultados das análises dos dados demonstram que o tema em questão se afigura oportuno ao passo que aguça possibilidades de novas pesquisas, principalmente no contexto digital da atualidade. Partimos do pressuposto que este tema necessita ser discutido no âmbito dos cursos de graduação, sobremodo, no curso de Licenciatura em Educação do Campo, fato que ratifica a pertinência desta investigação com vistas a prover reflexões face às novas demandas referente à inserção de uma cultura digital no campo educacional.
Herding Behaviour in Investors: A Study of Tadawul Financial Market
Authors: Yafouz Marwan , Yet Chu Ei
Published: October 2023

Purpose: The study investigates herding behaviour in the Tadawul stock exchange based on daily data between the years 1999 to 2019 .

 

Theoretical framework: Existence of uncertain situations affect the confidence level of the investor. This leads to investors changing their approach from rational to behavioural wherein they prefer to follow the judgements of others, thus engaging in herding behaviour. Several factors such as institutional investment,  external factors and  fundamental factors impact herding behaviour.

 

Methodology: The study uses OLS regression approach and accounts for the various factors such as institutional investment (percentage ownership in a stock, institutional ownership type, nationality) , external factors (global financial crisis, political instability, oil market volatility) and fundamental factors (P/E ratio, Share Turnover, Market Capitalization, Market Liquidity).

 

Findings: The empirical results indicate that herding is not present during the period of study. External factors and fundamental factors do not significantly impact the Cross-Sectional Absolute Deviation (CSAD) and there is no evidence of herding when accounting for these variables. However, CSAD is significantly impacted with the percentage of institutional investment, ownership and the nationality of institutional investors and there is evidence of herding when accounting for these variables.

 

Research Implications: As further scope the study proposes that the length of the time period may affect the findings and more robust analysis can be conducted by structural break models to understand the relative significance of the factors that may lead to herding during different time periods.

 

Originality: Institutional investment related factors have a significant impact on Herding behaviour of investors in the Tadawul stock exchange.
APOLLONIA PONTICA DURING THE AGES. FUTURE RESEARCH PERSPECTIVES
Authors: Peev Preslav , Prodanov Bogdan
Published: October 2023

The present paper aims to mark the current status of knowledge regarding the area of the Town of Sozopol (ancient Apollonia Pontica) and its future research. The combination of geological and geomorphological data with the acquired archaeological and historical information can restore the ancient landscape of the study area. The research is focused on the landscape of Sozopol and its surroundings, due to it being among the most important areas in the history of the Western Black Sea. A mechanism for the formation of the tombola between the Skamni Peninsula and the mainland is proposed, as well as a relative dating of its formation. All of this is the result of the successful use of geological, geomorphological and archaeological information, taking into account the age of archaeological sites. Multidisciplinary investigation of ancient archaeological sites is a key research field for systematic investigation. The research used a number of methods characteristic of the Earth sciences as well as the humanities. The knowledge with regards to the evolution of the historical topography of Apollonia Pontica as well as the main features of the ancient environment of the city and its surroundings, is still limited. The article offers options for future scientific perspectives for more detailed and precise restoration of the archaeological landscapes in the study area.
PETROLOGY AND GEOCHEMISTRY OF THE FELSIC HYPABYSSAL MAGMATISM IN NORTHERN PORTUGAL (CENTRAL IBERIAN ZONE)
Authors: Oliveira Antonio , Martins Helena , Sant Ovaia Helena
Published: October 2023

In the Central Iberian Zone, multiple subvolcanic intrusions were emplaced during the final stages of the Variscan orogeny. The felsic component of this magmatic episode is mainly represented by dykes and masses of granite porphyries and microgranites, which can be commonly found in northern Portugal. Overall, these rocks are more evolved and enriched in rare incompatible metal elements (such as Li, Be, Rb, Cs, Nb, Ta, Sn, and W) when compared to the regional Variscan granites. The data acquired from the lithogeochemical study reported in this paper suggest that most porphyries/microgranites presumably resulted from anatexis of metapelitic protoliths, with some metagreywacke/orthogneiss contribution. The existing compositional diversity is essentially explained by important differences regarding partial melting conditions, source heterogeneity, and the crystal fractionation phenomenon. The aforementioned enrichments are most likely associated with the composition of the sources, muscovite and biotite-dehydration-melting reactions, and fractionation of feldspar, biotite, and Fe-Ti oxide-dominated mineral assemblages.
PROSPECTS OF THE MEDVEDKO-AKHMETKINSKY ORE FIELD FOR RARE METAL LITHIUM MINERALIZATION (EAST KAZAKHSTAN)
Authors: Oitseva T. , Mizernaya M. , Kuzmina O.
Published: October 2023

Lithium is a fast growing sector. It is used in the production of lithium-ion batteries, which are widely used in smartphones, laptops, electric vehicles such as hybrid cars, electric vehicles or e-bikes. The need for this element is dictated by modern demand. The main deposits of lithium, known in Kazakhstan, were explored back in Soviet times, and since then not everyone understood the need for this metal, they were mothballed as a strategic reserve. Such objects include the Medvedka, Akhmetkino deposits, the Shozhe, Lukon, Skalistoye ore occurrence, etc., located within the Medvedko-Akhmetkinsky ore field. The ore field belongs to the central part of the Karagoin-Saryozek pegmatite zone, the Kalba-Narym granitoid belt. Within the field, the main favorable factors for the placement of rare-metal mineralization are considered: geological-structural (tectonic disturbances and ore-bearing environment) and mineralogical-geochemical (indicator minerals of lithium-bearing pegmatites and geochemical elements Li, Rb, Cs, Ta, Nb).
SPELEO-GEOMORPHOLOGICAL AND GEOPHYSICAL INVESTIGATIONS IN THE SOUTHERN PART OF THE ASKHI LIMESTONE MASSIF, GEORGIA, CAUCASUS
Authors: Lezhava Zaza , Asanidze Lasha , Tsikarishvili Kukuri , Karalashvili Tamaz , Tolordava Tamar
Published: October 2023

Georgia is a mountain country, located in the Caucasus region, where carbonate rocks are frequent and geographically well-distributed across the country. The aim of this paper is to introduce the main results of speleo-geomorphological and geophysical investigation conducted in the southern part of the Askhi Limestone Massif (namely Turchu Limestone Polje). Based on the complex studies, karst forms such as sinkholes and ponors were identified, the width of the Quaternary deposits located on the limestones was determined, the average and maximum discharges of the streams flowing on the bottom of the polje were calculated. The closed shape of the Turchu limestone polje and the limestone bottom covered with Quaternary sediments indicate the corrosive origin of the polje, which has been practically confirmed by our georadiological and electrometric studies. It seems that the evolution of the polje is actively taking place in the limestones under the Quaternary sediments and the dissolved material was being removed and is still being done through underground karst ways (underground corrosion). It is notable that the role of tectonic movements in the origin of the polje along with the corrosive processes, which had a periodic character and together with the uplifting of the area caused the lowering of the levels of underground waters and, consequently, the activation of karst processes.
THE POSSIBLE INFLUENCE OF THE DAM BREACH OF THE KAKHOVSKE RESERVOIR ON THE DEVELOPMENT OF THE SHORES OF THE DNIPROVSKO-BUZKY LIMAN
Authors: Davydov Oleksiy , Piatkova Alla , Cherniavskyi Andrii
Published: October 2023

The Dniprovsko-Buzky liman is a semi-enclosed water body located in the lower part of the mouth area (estuary) of the Dnipro and the Pivdennyy Bug. The studied liman is located within a tectonic depression that is characterized by asymmetric slopes. The northern slope of the depression is steeper and characterized by a predominance of positive tectonic movements. The southern slope is very gentle, and negative tectonic movements take place within it. The specified tectonic conditions determine the lithological, morphological, and dynamic diversity of the shores within the limans.
From November 2022 to June 2023, there was an uncontrolled discharge of water from the Kakhovske reservoir into the water area of the lower Dnipro. The corresponding situation led to a sufficiently high level of water surface within the liman, which significantly increased the risks of the manifestation of dangerous geological processes in the coastal zone. The catastrophic events of June 6, 2023, fundamentally changed the situation in the development of the coastal zone of the Dniprovsko-Buzky Liman. The flow of water formed as a result of the breach reached the liman a day later and, according to preliminary estimates, caused the water level in the region to rise by 1 m. The fundamental difference in the structure of the shores of the Dniprovsko-Buzky liman leads to significant differences in the activation of coastal processes. Along the northern coast, when the level rises, abrasion and landslide processes become more active; along the southern coast, the rise in water level leads to inundation of the area, partial erosion, and significant infiltration and inundation. It is worth noting that the activation of dangerous processes in the coastal zone can occur both directly during the rise of the water level and at the stage of lowering the water surface level.
Our study is the first attempt to assess the risks of the manifestation of dangerous geological phenomena in the coastal zone of the Dniprovsko-Buzky liman after the catastrophic events of June 6, 2023.
STABILITY PROBLEMS WITH A WEAK GROUND BASE
Authors: Rafailov Rafail
Published: October 2023

In the case of road routes in natural and urban environments, a problem arises with a weak foundation at the boundaries of the easement of the facilities. The weak foundation is in the form of landslides, unstable varieties and ravines on which an embankment is built.
In an urban environment, the weak base usually covers a much wider area than the easement of the roadways and streets to be strengthened. In order to avoid stabilization of the entire affected city infrastructure and to limit the strengthening activities only to the extent of the reconstructed road or street, it is necessary to implement an innovative technical solution of the "ground bridge" type.
When in a natural environment it is possible to repair the drainage facilities that caused the accident, a temporary stabilization of the earth's foundation is reached. Due to the lack of support, the strengthening facilities should provide options for additional stabilization of the slopes, which would create conditions to be included in a "land bridge" type facility.
The current study is devoted to the technical possibilities for mastering the problems related to a weak earth foundation.
IMPROVING EFFICIENCY OF DEVELOPMENT OF CARBONATE RESERVOIRS WITH THE COMBINED USE OF GEOCHEMICAL METHODS, RESERVOIR SIMULATION AND GEOMECHANICAL MODELING
Authors: Shipaeva Maria , Sudakov Vladislav , Guskova Zulfiya , Shakirov Artur , Minebaev Rizid
Published: October 2023

The task of developing carbonate reservoirs has now become extremely important. Low technological indicators of development are explained, as a rule, by an inefficient well placement system, complex geological structure, high oil viscosity, water breakthrough and the occurrence of technological complications in the process of field development. The aim of the work is to refine the geological and reservoir simulation model of a complexly built carbonate reservoir, in terms of areal coverage of wells by hydraulic fracturing. The determination of the directions of the hydraulic fracture along the section (up or down), along the area of work and involvement in the development of non-target objects were obtained. The objectives of the study include the analysis of the direction of strain-stress distribution in 2 hydrocarbon deposits of the selected area and the study of the geochemical properties of the reservoir fluid over the entire area of work. First, a geomechanical model was built, which is a numerical representation of the state of stress and rock mechanical properties. Then, geochemical studies of samples were carried out over the area of work from each layer. As a result, for a well with hydraulic fracturing, the involvement in the development of reserves of the target and non-target fracture creation object was quantified. Finally, a geological-hydrogeochemical adaptation of the model was performed, which showed the best result with additional methods for studying the composition of the fluid and geomechanical modeling.
NORTH EASTERN YAKUTIA GOLD MINERAL RAW MATERIAL BASE: ANALYSIS, EVALUATION AND PROSPECTS
Authors: Batugina N.S. , Khoiutanov E.A.
Published: October 2023

The paper presents a detailed review of ore and alluvial gold mineral raw material base of North East of Yakutia and estimates the economic efficiency of development of gold deposits not involved in the exploitation. Research methods: analysis and comparison, qualitative and quantitative features of the mineral raw material base of Yakutia, formed and replenished databases on a number of deposits of the region; methods of analogy, economic-statistical, methods of system analysis and decision support, evaluation of efficiency of development of deposits.
The article provides a detailed analysis of the distributed and undistributed fund of ore and placer gold deposits and shows that the level of the distributed fund is quite high. It is noted that there are certain reserves of a promising and developed gold raw material base in the North-East of Yakutia. The authors identify factors that reduce the efficiency of development of the mineral resource base of gold in the North-East of Yakutia: territorial separation, location in areas with weak or absent infrastructure, availability, for the most part, of small and medium-sized stocks at high levels. The article shows that objects of ore and placer gold due to the complexity of geological and industrial types of objects have increased operating and capital costs and infrastructure limitations.
This article presents the authors' developed set of geotechnological and economic measures that can increase the efficiency of the exploited deposits, involve in the development of small and medium-sized gold ore objects. The article provides the calculations which show that the mineral raw material base of ore and placer gold of the North-Aast of the Republic of Sakha (Yakutia) is sufficient to maintain the annual metal production at more than 20 tons per year, and the raw material potential of this region enhances to increase this level for a long time with appropriate investments in geological exploration. The assessment of economic efficiency confirms that the introduction of gold ore and placer deposits in the North-East of Yakutia to the economic circulation generates substantial income to investors and create new jobs.
STUDY THE INFLUENCE OF THE CHOICE OF BLASTING ZONES ON THE ROCK FRAGMENTATION QUALITY AND THE STABILITY OF BENCHES IN OPEN-PIT MINING BY NUMERICAL MODELING
Authors: Saadoun Abderrazak , Boukarm Riadh , Fredj Mohamed , Isik Yilmaz
Published: October 2023

In this research, the study site is a limestone quarry Ain El-Kebira located in the wilaya of Setif (Northwest -Algeria) producing limestone for cement manufacturing. The present work represents a study to measure the granulometric distribution of the blasted rock using the digital image processing software WipFrag and empirical model KuzRam, in order to evaluate the efficiency of the blasting operation and ensure the stability of the benches.
In this work, we will simulate the method of exploitation while analyzing the effect of exploitation (digging trenches cutting by explosive) on the stability of the northern flank of Ain El-Kebira quarry. The calculation was carried out by phases (excavation sequence taking into account the phase before the exploitation) in different areas of the steps (5 blasts) in order to target the dangerous working platforms.
It can be seen as a conclusion that the measurement of rock size by both empirical and numerical methods (KuzRam and WipFrag) gave almost similar results with accuracy of WipFrag. The change of some parameters of the blasting plan having an important influence on the blasting area, the use of large quantity of explosive negatively influenced the dimension of the fragmented rocks and the stability of the quarry edge, the use of stability software targeted the dangerous zones of the blasting (in our case software phase2 gave ideal results), these results helped the engineer for better design of the blasting plan.
TECHNICAL AND SAFETY ASPECTS FOR SETTING UP MOBILE EXPLOSIVES WAREHOUSES
Authors: Laszlo Robert , Gheorghiosu Edward , Ilici Stefan , Nicola Aurelian , Usurelu Stefan
Published: October 2023

The execution of the blasting works involves the management of the problem of storage of explosive materials. This aspect is easier to solve in the case of mines activities with long exploitation time and where storage capacities are arranged, according to the legislation that provides constructive and safety criteria depending on the type and quantity of explosive materials stored. In the case of isolated blasting works, those for road construction, building demolition, underwater or forestry, etc., storage facilities must be arranged for shorter periods of time and smaller capacity, but which must comply with security, environmental and risk requirements, such as high-capacity deposits with long duration of activity. Considering that for the execution of such blasting works, the national legislation provides the possibility of arranging temporary explosive depots, of small capacity, but without specifying the constructive details and the necessary safety requirements to be observed, mentioning only that they must be executed based on a specialized project. This paper presents a series of tests conducted by INSEMEX, to establish recommendations regarding the constructive and safety requirements that must be observed when designing and building mobile explosive depots.
AZOREAN LAVA TUBE SYSTEMS: A PROPOSAL FOR A NEW PLANETARY ANALOG SITE TOWARDS FUTURE LUNAR AND MARTIAN EXPLORATION RESEARCH
Authors: Pires Ana Cristina , Moura Rui , Nunes Joao Carlos , Barcelos Paulo , Caetano Pedro , Quinteiro Pedro , Gonzalez-Serricchio Aidyl S. , Gonzalez Yvette , Andrejkovicova Slavka , Niel Paul , Chamine Helder I.
Published: October 2023

The significance of analog studies using lava tubes on Earth to inform on the design of future lunar and Martian missions is aimed at exploring and utilising those structures as potential habitats on those planetary bodies. Lava tubes, natural subsurface cavities formed by volcanic activity, have several characteristics that make them appealing for human habitation on the Moon and Mars. Researchers conducting analog studies on Earth can gain valuable insights into the geological, environmental, engineering, crew and robotic challenges associated with lunar or Martian lava tube exploration and housing. This work reviews some scientific characteristics of an Azorean lava tube system that can contribute towards analog studies and their potential to help plan and design lunar and Martian missions. Human and robotic planetary exploration has garnered considerable attention recently, focusing on identifying potential habitats for future human missions. Lava tubes, formed by molten lava flowing beneath the solidified crust, offer natural subsurface shelters with numerous advantages for lunar or Martian habitation. This work provides insight into one of a lava tube structures, in Terceira island in the Azores archipelago. This structure would be adequate for analog studies that can contribute to the design of missions, providing valuable protocols for geological, geophysical and engineering tasks and potentially facilitating the development of sustainable lunar or Martian habitats.
DETERMINATION OF THE DYNAMIC AND FRACTAL CHARACTERISTICS OF TIME SERIES FROM A SEPARATE SEISMIC ENERGY SOURCE IN THE BALKAN PENINSULA
Authors: Oynakov Emil , Popova Maria , Aleksandrova Irena , Milkov Yordan
Published: October 2023

The analysis of the dynamic and fractal properties of the released seismic energy time series allows for the classification of the seismotectonic system that produces earthquakes as a deterministic-chaotic system. The dynamics of such systems suggests that relatively small changes can lead to significant (with one or more order large) jumps.
At the same time, the size of these jumps and the intervals of time that separate them are irregular, and the possibilities for their prediction are limited or absent.
In this study for the analysis of temporal sequences of the emitted seismic energy, catalog data from independent events for the period 2009-04.03.2021 from the Athens University, combined with the Bulgarian catalog of earthquakes for the period 1981- 2019, were used. The studied period is from the beginning of 2009 to the end of 2019, including 214 730 earthquakes with Mw magnitude. A standard method for studying temporal sequences - spectral analysis - was applied. Time series of daily seismic energy release for the full range of magnitudes, as well as for various sub-ranges, were obtained. The frequency dependence of the spectral power S in a double logarithmic scale for the time series of the separated seismic energy in different ranges of magnitude was shown. For all analyzed time series, the Hurst exponent (H) and the fractal dimension (D) were calculated using the freely distributed program Fractan 4.4. Dependencies of log (R / S) on log (?) obtained for different ranges of magnitude and estimates of the Hurst exponent (H) were calculated. The standard deviations of the parameters are ?? 0.1, ?H 0.3, ?D 0.3. The fractal characteristics of the temporal sequences of the released seismic energy for the Balkan peninsula in different magnitude intervals were obtained.
A CASE STUDY OF A SYNTHESIS GAS SYSTEM (H2) FAILURE IN AN AMMONIA PRODUCTION FACILITY
Authors: Munteanu Laurentiu , Florea Gheorghe-Daniel , Simon-Marinica Bogdan-Adrian , Tuhut Ligia-Ioana , Morar Marius-Simion
Published: October 2023

The effect of pressurized hydrogen on pipeline walls is an important phenomenon that can cause damage to the integrity of the pipeline structure during transport and storage of gases. Hydrogen can penetrate the wall of metallic pipelines (alloy steel or carbon steel) and cause cracking or rupture of the material, which can lead to pressure loss or even serious effects (explosions, fires).
The embrittlement of the metal by hydrogen is a phenomenon of degradation of the mechanical properties of the metal, as a result of the penetration of hydrogen into the crystalline structure of the metal, by diffusion, leading to the weakening of the atomic bonds, and then to the decrease in the ductility of the material, manifested by cracking or breaking it in areas exposed to mechanical stress or vibrations.
The article aims to present a case study, starting from a recent failure of a synthetic gas (H2) system within an ammonia production facility at a chemical plant in Romania, consisting of an explosion followed by a fire, the support being synthesis gas (mainly H2, 70%), gas escaping through the crack created in a pipe in the welding joint area, where the working pressure was about 140 bar.
The mechanism of the event was elaborated on the basis of the material made available by the research bodies, the results obtained by the expertise of the material samples at the scene and in the laboratory, as well as the relevant technical-scientific reasoning.
EVALUATION OF THE MEASUREMENT EFFECT IN THE PURGE TEST
Authors: PUPAZAN Gabriela , CSASZAR Tiberiu , DARIE Marius , GRECEA Danut , VASS Zoltan
Published: October 2023

The paper�s purpose is to quantify the measurement consequences in the purge test of equipment protected with the �p� type of protection. In order to achieve this objective, the authors involved a simulation process for a pressurization enclosure. The simulation was conducted, in the first stage, without measurement to obtain a reference after that simulation was conducted for scenarios involving sampling separately for each measurement point.
The first part of the paper presented the risks of explosion and pressurized enclosure as a protection type. The use, production, processing, and storage of petroleum products and gases generate atmospheres that can ignite or even cause explosions, resulting in serious losses.
In the second part, the simulation model for obtaining test gas concentrations was proposed and presented, as well as the conditions imposed in the simulation model for the purpose of simulation. Within this approach, the influence of the measurement process (by sampling) on the test as a whole was investigated.
The prevalent conclusion is that the measurement process with sampling at the configured parameters influences the purging test and this effect manifests differently on the considered measuring points. The implemented and presented method allows the classification of pre-set measurement locations as critical points. The magnitude of the deviation underlines the need to return the gas mixture due to the sampling involved in the measurement process.
FLAMMABILITY AND COMPOSITION ANALYSIS FOR OIL PRODUCTS
Authors: Suvar Sonia Niculina , Prodan Maria , Nalboc Irina , Szolloszi-Mota Andrei , Florea Daniel
Published: October 2023

Chemically hazardous industrial accidents pose a serious risk to both people and the environment. Furthermore, these accidents affect sustainable progress and result in significant economic losses. However, several industrial sectors that are essential to a contemporary industrialized civilization must employ substantial volumes of hazardous chemicals. Measures are needed to prevent major accidents, as well as to ensure adequate preparation and response should such incidents occur, to reduce the risks associated with them.
For this work, flammability experiments were performed for petroleum derivatives and residues, and experimentally determined values for autoignition temperature and GCMS compositional analysis were obtained.