bluuebunny/crossref_metadata_2025 huggingface dataset:
FOREIGN LANGUAGE EDUCATIONAL ENVIRONMENT OF A MODERN UNIVERSITY IN UKRAINE
Authors: Rudnik Yuliia , Petryk Lada , Kosharna Natalia
Published: June 2024

Most universities strive to create a favourable educational environment according to modern trends and requirements. The paper analyzes and systematizes the essence of the concepts «educational environment» and «foreign-language environment» based on the research of Ukrainian and foreign scholars. Drawing on the typology of educational environments, the authors of the paper refine the understanding of the concept of a «foreign-language educational environment» based on the literature reviews. Considering the challenges of the present, caused by COVID-19, the post-COVID era, and the war in Ukraine, the factors influencing the transformation of the modern educational environment are presented and discussed. The paper organizes existing research on the explored problem and presents the authors’ vision of the contemporary educational environment of a university under modern conditions. It includes the description of technologies used to address various educational needs and to meet the technological requirements. Therefore, the typical features of such an educational environment are personalization, flexibility, engagement, interactivity, availability, and multisensory and multimode experience. The creation of the aforementioned environment is possible due to specific training of the current academic staff and encouragement and professional training of future pedagogues. The experience revealed in the paper is based on the authors’ work at the Faculty of Pedagogical Education of Borys Grinchenko Kyiv Metropolitan University, specifically with the students of specialties 012 Preschool Education and 013 Primary Education foreign language training.
Contribuições Freireanas Sobre Conhecimentos Científicos e Tecnológicos Para a Educação em Ciências da Natureza
Authors: Santos William Rossani dos , Bozzini Isabela Custódio Talora , Calzolari Anselmo
Published: June 2024

O referencial freireano vem sendo empregado em investigações de diferentes campos da educação, incluindo pesquisas na área do Ensino de Ciências. Com o objetivo de identificar as contribuições de Paulo Freire em relação aos conhecimentos científicos e tecnológicos para a educação em ciências da natureza, foram analisadas fontes primárias por meio de uma pesquisa bibliográfica. Dentre os livros mais citados do autor, dez foram selecionados para a análise, incluindo: I) Pedagogia do Oprimido; II) Pedagogia da Esperança: um reencontro com a Pedagogia do Oprimido; III) Pedagogia da Autonomia; IV) Educação como prática da liberdade; V) A importância do ato de ler; VI) Educação e mudança; VII) Extensão ou comunicação; VIII) Política e educação; IX) Conscientização; X) Pedagogia da Indignação. O tratamento analítico se deu por meio da enumeração, categorização e decodificação oriundas das técnicas de análise de conteúdo de Bardin. As unidades de análise foram selecionadas a partir dos seguintes termos e radicais: Ciência; Científic-; Tecno; e Técnic-. Os resultados identificados e analisados pelo estudo buscam ampliar o conhecimento da comunidade de pesquisadores e de professores acerca da contribuição da obra do autor para o ensino de ciências da natureza, além de propiciar debates e futuras investigações sobre a dimensão instrumental do conhecimento científico por meio de uma perspectiva dialógica, humanista e igualitária.
Analysis of the Impact of Demographic Characteristics and Business Conditions on Employee Job Satisfaction
Authors: Bağlan Fatma Betül , İnan Umut Hulusi , Başlıgil Hüseyin
Published: June 2024

Job satisfaction is an important concept in terms of productivity and continuity of enterprises. The decrease in the job satisfaction level of the employees may cause many problems such as slowing down the work and low productivity. In this study, the surveys conducted on 150 employees from 52 sectors were evaluated with the SMART-PLS 3 package program, and the effect of perceptions on business conditions (economic, ergonomic, internal communication, workload level, and career opportunities) on job satisfaction was examined. The topic addressed in the study, the classification of organizational conditions and the methodology employed, contributes to the literature. As a result of the analyses, it was determined that the perceptions of internal communication and career opportunities affect the level of job satisfaction of the employees. In the continuation of the study, the effect of the demographic characteristics of the employees on these perceptions was examined by using the SPSS 22 statistical program. This examination revealed that the gender affected the perception of internal communication and the education level the perception of career opportunities.
Potasyum Borhidrürün Formik Asit Katalizörü Varlığındaki Hidrolizi
Authors: Kenar Mehmet Emre , Şahin Ömer , Genceli Güner Fatma Elif
Published: June 2024

Günümüzde artan enerji ihtiyacına paralel olarak özellikle fosil yakıtların tükenmesiyle birlikte alternatif yenilenebilir enerji kaynaklarına yönelim hızla artmaktadır. Artan bu eğilim ile birlikte, önemli bir enerji taşıyıcı kaynağı olan hidrojen öne çıkmaktadır. Hidroliz ile kolay, güvenilir ve hızlı bir şekilde hidrojen elde edebilme imkânı sağlayan borhidrürler bu kaynakların başında gelir. Ancak borhidrürlerin sulu ortamdaki hidrolizleri oldukça yavaş olduğundan reaksiyonu hızlandırmak amacıyla katalizörlerin kullanılması gerekir. Bu katalizörler homojen veya heterojen olabilirken, homojen katalizörlerin endüstriyel uygulamalarda daha fazla avantajı bulunur. Bu çalışma kapsamında potasyum borhidrürün (KBH4) asit bazlı homojen bir katalizör olan formik asit varlığında hidroliz reaksiyonu ele alınmıştır. Reaksiyonun kinetik davranışı formik asit miktarı, sıcaklık ve potasyum borhidrür konsantrasyonu parametreleri incelenerek belirlenmiştir. Farklı sıcaklık verilerinden yola çıkılıp reaksiyon hız eşitlikleri kullanılarak potasyum borhidrürün formik asit varlığında hidroliz reaksiyonunun hızı 5 litre H2/gkatdk civarında, reaksiyon hız derecesi 1.1, aktivasyon enerjisi 57.92 kJ/mol, reaksiyon entalpisi 55.32 kJ/mol, entropi azalışı 58.11 J/molK olarak bulunmuştur. Hidroliz reaksiyonuna ait Gibbs serbest enerjileri ise 20, 30, 40 ve 60 °C için sırasıyla 72.35, 72.93, 73.51, 74.67 kJ/mol olarak hesaplanmıştır. Sonuç olarak potasyum borhidrürün hidrolizi sonucu elde edilen hidrojenin, küçük ölçekli PEM yakıt hücrelerinin ihtiyacını karşılamak için yeterli seviyede olduğu, hidroliz reaksiyonunun hız değerlerinden anlaşılmaktadır.
Merchant Fleet Performance of Türkiye: A CRITIC-based TOPSIS Approach
Authors: Akgül Ersin Fırat , Akdamar Emrah , Gögebakan Maruf
Published: June 2024

The study focuses on assessing the merchant fleet performance of Türkiye, a country surrounded by seas on three sides and holding a pivotal position in global logistics networks. It considers mean age of vessels, total carrying capacity in dead weight tons, and the number of ships as indicators influencing Türkiye’s merchant fleet performance, with the importance weights of these indicators determined using the CRITIC method. Based on the determined weights, Türkiye’s merchant fleet performance for the years 2011-2023 is evaluated using the TOPSIS method. The findings reveal that mean age of vessels emerges as the indicator with the highest importance weight. The analysis indicates an improvement in Türkiye’s fleet performance between 2011 and 2013, followed by a subsequent decline from 2013 onwards. Notably, there is a significant shift observed in 2016 across all three indicators. Given Türkiye’s aging fleet, the study suggests a focus on acquiring young and high-capacity vessels to enhance fleet performance. This strategic approach can help Türkiye optimize its maritime trade capability and maintain competitiveness in the global shipping industry.
ARTIFICIAL INTELLIGENCE AND TRANSLATION THROUGH THE WORKS OF STANISLAV LEM
Authors: Anchevski M.
Published: June 2024

The article discusses certain aspects of the description of bispecific verbs of the Polish language in comparison with a similar category of the Russian language. The comparison carried out according to the following parameters: quality and quantity of bispecific verbs; inconsistency in the qualification of the similar verb forms in the compared languages (for example, two-aspect Russian verbs бежать and молвить and Polish imperfective verbs biec and mówić ); the conditionality of the expression of bispecificity and manifestation in a bispecific verb of particular kind of morphological category that the given verb expresses, and the context; transition of two-aspect verb to the one-aspect when prefixal or suffixal correlates appear (for example, the verb арестовать becomes perfect when the imperfect арестовывать appears; the verb aresztować becomes imperfective when perfect zaaresztować appears). The necessity of involving dialectal material in the comparison of Polish and Russian ambitransitive verbs of native origin is substantiated.
SYNSEMANTIC PARTS OF SPEECH AS MARKERS OF COLLOQUIAL DISCOURSE
Authors:   Lomonosov Moscow State University, Belousova V.
Published: June 2024

The electronic inhabitants of the Cosmos, their experiences, the places where they move, inhabit and aspire to them, described in Stanislaw Lem "Cyberiad" are named with neologisms. Their world is very distant in time and space from today's reader which affects to a challenge to the translator translating from Polish into Macedonian.
TRAVELOGUE BY LADISLAV VETVICHKA «S JARKEM PO STO ROKACH OKOLO RAKUSKA-UHERSKA» AND THE OSTRAVA LANGUAGE
Authors:   Lomonosov Moscow State University, Izotov Andrey
Published: June 2024

Professor A.G. Shirokova insisted on the need for Bohemian students to get acquainted not only with the literary Czech language, but also with non-literary idioms represented in the Czech discourse. The article is devoted to the travelogue S Jarkem po sto rokach okolo Rakuska-Uherska (2019), written, according to the definition of the author of the travelogue Ladislav Větvička, in the "Ostrava language" (ostravština). The travelogue is a successful symbiosis of the southern dialects of Czech Silesia, literary Czech and partly everyday-spoken Czech. The appearance of such texts strengthens the position of the "Ostrava" (= Lyashsky = Czech-Silesian) microlanguage, which sounds in the reader's mind whenever texts are read on it.
FORMATION OF CZECH NATURAL SCIENCE NOMENCLATURE AND TERMINOLOGY IN THE WORKS OF J.S. PRESL
Authors:   Lomonosov Moscow State University, Indychenko A.
Published: June 2024

The article examines the history of the formation of Czech terminology of natural sciences - botany, zoology, chemistry, mineralogy, geology, technology in the works of Professor J. S. Presl (1791-1849), a representative of the second generation of the Czech national revival. Special attention is drawn to the contribution of other Slavic languages to the development of Czech natural science terminology, especially to the various types of reception of Russian scientific terminology by J.S. Presl.
EXPLICATION OF DIVERGENT SENSES IN CONTRASTIVE RESEARCHESOF PROVERBIAL FORMULAS REPRESENTING THE NOTION OF GOODNESS ON THE MATERIAL OF RUSSIAN AND POLISH
Authors:   Lomonosov Moscow State University, Kulpina V.
Published: June 2024

The article is devoted to the contrastive aspects of Russian and Polish proverbs on the subject of goodness. The aim of the article is to analyze the lexicographical representing of notion goodness in Russian and Polish. Proverbial subject material is considered as a component part of the cultural concepts of Russian and Polish linguistic cultures.
ON THE QUESTION OF STYLISTIC FEATURES OF MODERN MARTYR'S LIVES (BASED ON THE MATERIAL OF THE «LIVES OF THE NEW MARTYRS AND CONFESSORS OF THE RUSSIAN XX CENTURY OF THE MOSCOW DIOCESE»)
Authors:   Lomonosov Moscow State University, Surovtseva E.
Published: June 2024

This article presents preliminary considerations on the stylistic features of modern martyr's lives, based on the material of the 8-volume edition of the Lives of the New Martyrs and Confessors of the Russian XX century of the Moscow Diocese. In these texts, the sources used are abundantly quoted (official resolutions, interrogation protocols, letters, etc.). The style of the original text is religious-ecclesiastical; the styles of quotations are official-business, colloquial, also religious-ecclesiastical. Thus, modern martyr's lives are a complex stylistic fusion.
Comparison of Morphological Categories of a Noun in Slavic and Turkic Languages Using the Example of Russian and Azerbaijani Languages
Authors: Khalilova H.
Published: June 2024

This article examines the morphological categories of the noun of two typologically different languages – Russian and Azerbaijani. Thus, Russian is an inflectional language, while Azerbaijani is agglutinative. A comparative study of the grammatical categories of a noun in these two languages will help identify similarities and divergences in the languages under study, which is valuable when compiling manuals, reading comparative special courses, translation, and language teaching.
ПСИХОЛОГІЧНІ ОСОБЛИВОСТІ ПОВЕДІНКИ ОСОБИСТОСТІ З РІЗНИМИ АДИКЦІЯМИ
Authors: Пасічник Леся
Published: June 2024

The purpose of the article is to carry out a theoretical analysis of scientific sources on the study of psychological characteristics of behaviour of a person with various addictions.
Methods. The article uses the methods of theoretical study of scientific literature: analysis, synthesis, abstraction, and generalisation.
Results. A review of the theoretical and empirical basis of research on the psychological characteristics of addictive behaviour of individuals suggests that the problem of addictions is relevant, widely represented and studied by scientists in various aspects. There is an increase and thoroughness of scientific research on non-chemical (behavioural) addictions. Among Ukrainian researchers, the predominant topics are the study of psychological features of the formation of addictive behaviour in modern youth, the influence of the family on the formation of addictive behaviour, urge addiction and workaholism, psychological features of food addiction, Internet addiction, etc.
Conclusions. The family system is the basis for the development of individual psychological factors of predisposition to addictive behaviour (attachment styles, the level of manifestation of character accentuations, resistance to emotional stress, etc.) Dependence on psychoactive substances is considered a complex and chronic condition. Due to the legalisation of cannabis products in a number of countries, its availability is increasing. Accessibility is one of the negative factors in the development of chemical dependence. The distinction between non-problematic behaviour and behavioural addiction (workaholism, overeating, internet addiction, gambling, etc.) in everyday life is very vague, and negative consequences for a person's health and well-being can be an evidence of addiction. Signs of established addiction (chemical and non-chemical) are: impaired control over behaviour, prioritisation, continuation and escalation of behaviour despite negative consequences. Until recently, the tools for empirical research on addictive behaviour were mainly developed and improved for the study of substance dependence and were used to study all types of addictions, including behavioural ones. At the present level, there are two trends: the use of existing tools for the study of addictions; development and implementation of new methods for chemical (substance dependence) and non-chemical (behavioural) addictions.
ПСИХОЕМОЦІЙНЕ ВИГОРАННЯ ОСОБИСТОСТІ : ТЕОРЕТИЧНІ АСПЕКТИ ПРОБЛЕМИ
Authors: Рудницький Олександр
Published: June 2024

Purpose. The objective is to conduct an analytical review of multidirectional studies on psychoemotional burnout of personality as a phenomenon that negatively impacts and significantly complicates its professional activity and interpersonal communication.
Methods. To achieve this objective, the following scientific-theoretical methods were applied: analysis, synthesis, generalization, which allowed for the revelation of substantive and functional parameters of psychoemotional burnout.
Results. A range of studies explains the cause-and-effect essence of psychoemotional burnout by the specifics of a person's professional activity. Burnout leads to the appearance of psychological and/or psychosomatic changes, adversely affects affective balance, generates increased stress, heightened anxiety, oppressive frustration, and other depressive feelings, experiences, and behavioral modalities. Monotonous and emotionally exhausting as well as physically amortizing professional activity in a specific field, along with permanent pressure from administration, may stimulate feelings of mental discomfort, increase the frequency of intra- and interpersonal conflicts, stimulate social withdrawal, loneliness, and experiences of disappointment in life values.
Conclusions. Psychoemotional burnout is regarded as a complex and branching phenomenon that exerts an unfavorable influence on a person's life and complicates their communicative relationships within the family and at work. Manifestations of psychoemotional burnout and psychophysical exhaustion have been studied extensively with diverse samples (students, police officers, medical professionals, firefighters, athletes, deprived children, etc.). A common feature of the analyzed studies is the recognition of the uncomfortable and destructive pressure of psychoemotional burnout on the affective-cognitive behavioral tactics and strategies of the individual.
Additive and Causal Connectives in GFL Argumentative Writing
Authors: Karlak Manuela , Šarić Šokčević Ivana
Published: June 2024

The main objective of foreign language learning and teaching is the development of communicative language competence. One of its key components is discourse competence which consists of three main elements: cohesion, coherence and text composition (Bagarić Medve and Pavičić Takač 2013). The development of writing skills is acknowledged as one of the main challenges in foreign language learning and teaching, which includes the appropriate usage of cohesive devices in order to tackle the semantic relationships within a text. In German, explicit cohesive devices refer to coordinating conjunctions, subordinating conjunctions and adverbial connectors. While a bulk of previous research has focused on English as a foreign language, the studies conducted among the learners of German are still scarce Earlier studies (e.g. Breindl 2016; Vaakanainen and Maijala 2022) pointed to a limited range of variations within the same semantic group and an inappropriate use of connectives when comparing their usage between native speakers and learners of German as a foreign language (GFL). The aim of the present study is to analyse the frequency, variation and errors of causal and additive connectives (coordinating conjunctions, subordinating conjunctions and adverbial connectors) in GFL argumentative writing. The corpus consists of 43 argumentative essays written by Croatian GFL students at B2 level. The findings concerning frequency show that additional connectives are most frequently used within the whole corpus, whereas causal connectives take third place. The additive coordinating conjunction und is the most frequent additive item, the subordinating conjunction weil is the most frequently used causal item. The results connected to variation point to a wider range in the use of additional connectives in comparison to causal, but also reveal more error recognition within the additive semantic group. The most common types of errors concerning connectors detected in the corpus are as follows: syntax, meaning, spelling/punctuation, redundancy and register. In order to utilize these research findings aiming at improving the writing skills of GFL students in the learning/instructional process, practical implications are presented at the end.
Badanie geoidy i topografii morskiej w lagunach
Authors: Lycourghiotis Sotiris , Paraskevi Crawford Elizabeth , Kariotou Foteini
Published: June 2024

The study of geoid fluctuations in coastal areas is extremely important in understanding the changes in the extent of the Earth’s crust and also in the form of the mean sea surface topography (MSST). In recent years, the GNSS-on-boat method has made important steps towards the detailed description of marine topography, achieving precision to the order of a few centimeters, which is much more significant than has been achieved with the alternative satellite and altimetric methods. In this study, the method is applied for the first time in a lagoon, a challenging but exceptionally interesting environment both from a geophysical and hydrodynamic viewpoint. The ‘Papas’ lagoon in Western Achaia (Greece) was chosen for field measurements. The result for the geoid form shows a peak (13-15cm) in the marine topography approximately in the center of the lagoon. If this is confirmed in other lagoons or lakes, it will constitute a significant contribution to hydrocyanic dynamic models, which currently take as a basic assumption that the surface of the water is level. At the same time, the form of the SST indicates a significant reduction in gravity in the center of the lagoon, which may be linked either with a local reduction in the thickness-density of the Earth’s crust or with the existence of underground voids, faults or deposits.
Geotechnologie stosowane w konstrukcjach antropomorficznych: Wykorzystanie georadaru do wykrywania problemów strukturalnych, przyczyn i skutków - studium przypadku w Coimbrze w Portugalii
Authors: Duarte João , Carvalho José , Ribeiro Joana
Published: June 2024

One of the recurrent problems in civil construction concerns the wear and deterioration of structures due to their use over time. There should be a plan for monitoring the structures to assess and quantify anomalies, which will allow the minimization and rehabilitation measures to be carried out in advance. This study aimed to use geotechnologies, specifically the Ground Probing Radar (GPR), to identify and quantify the damage caused using a swimming pool inserted in a structure built on a residential property. The methodology comprised the use of georradar Sensors & Software PulseEKKO GPR for data acquisition. The data were processed in the software EKKO Project considering the following parameters: 1- Grain/Filter: Dewow + SEC2 Gain (Attenuation:10.00 Start Gain:4.00 Maximum Gain: 950). Seven acquisition profiles were performed: 3 on the East side, 2 on the South side, and 2 on the West side of the pool, with a spacing between 0.8 m. From the visualization of the processed radargrams, and the slices elaborated for each profile with a color palette corresponding to the obtained reflectance values, it was possible to identify the underlying structures of the pavement of the edge of the pool such as beams, beam frames, slope, interior space of the support structure and, most importantly, the degree of subsoil materials alteration, depth, and dispersion of water infiltrations. On the East side, the pool is inserted into the rock formation; it is possible to identify up to 1 m depth of the water infiltration and dispersion. To the West and South, the pool is supported by a built-up structure; underneath there is a hall and the engine room. In these places, the infiltration and dispersion of water were identified until approximately 0.7 m depth, as well as the existing structures and their condition. The 0.7 m corresponds to the thickness of the existing slab and beams. Based on these results, an intervention plan was prepared for the rehabilitation of the deterioration of the materials and the minimization of water percolation through the waterproofing of the pool's surrounding areas.
Memrystor na bazie HfO2-HfOx z warstwami aktywnymi o różnych rozmiarach
Authors: Bibilashvili Amiran , Kushitashvili Zurab , Jangidze Larisa
Published: June 2024

Memristore parameters are strongly depend on the size of active layers. In this paper is reported the outcomes of memristore created with different size active layers. There are considered 1μ, 5μ and 10μ diameter separated devices in the form of crossbar with HfO2 + HfOx active layer and tungsten top contact, titanium nitride botton contact and aluminum wiring contact. As substrate was used sapphire and active layers of memristore was deposited by reactive magnetron sputtering technology. With photolithography exposure system by new pothomask has been done 1μ, 5μ and 10μ diameter lithography for formation active layers and all contacts. Leakage currents dropped to 0.01mA, increased cicles of histeresis of I-V curves and dramatically increased Roff /Ron ratio to be 100000.
Łączność hydrologiczna, strukturalna i ekologiczna funkcjonalność meandrującego ekosystemu delty Dunaju
Authors: Duţu Laura , Duţu Florin , Pavel Ana-Bianca , Catianis Irina , Vasiliu Dan , Lupaşcu Naliana , Stănescu Ion
Published: June 2024

The pressure control of the climate change and anthropogenic factors have consequences on the ecological systems, generating structural changes. The abiotic (i.e., water hydrology and hydraulics, sediment load, water physic-chemistry) and biotic (i.e., biodiversity, structure and functionality of food webs) characteristics of river-channels-lakes from deltas depend on several factors; however, the main driver of these characteristics is represented by the hydrologic connectivity with the main stem of the river. Floodplain lakes can be permanently, temporarily or disconnected with the main stem of the river producing interruptions in the transfer of fresh water and thus affecting benthic macroinvertebrates, by decrease in their population, diversity and even loss of sensitive taxa. Multidisciplinary investigations (hydrodynamics, sedimentological and ecological measurements and analyses) were made to investigate a river-channel-lake site type situated on the St. George branch formed by a cutoff meander (Mahmudia meander), a connective channel (Uzlina Canal) and a lake (Uzlina Lake) to observe how much the fresh water and sediment input to the delta depressions is affected by the structural changes of the meander physiography. The Mahmudia meander was rectified 40 years ago and the response of the channel consisted in a very fast silting of the former meander, currently receiving less than 5% of the upstream water and sediment discharge. The lateral connectivity with the deltaic depressions thought the lateral canals is compromised.
Kwaśna modyfikacja gruzińskiego heulandytu naturalnego
Authors: Tsitsishvili Vladimer , Ebralidze Ketevan , Dolaberidze Nanuli , Mirdzveli Nato , Nijaradze Manana , Amiridze Zurab , Khutsishvili Bela
Published: June 2024

Acid treatment is a powerful tool for improving the performance of natural zeolites, and the purpose of our work was to study chemical composition, structure and properties of acid-treated heulandite from the Tedzami-Dzegvi deposit. Samples of heulandite-containing tuff from the Rkoni plot with zeolite phase content up to 90%, consisting of heulandite and chabazite in a ratio of 8:1, and having chemical composition described by empirical formula |Na0.25K0.06Ca0.19Mg0.15)|[AlSi3.6O9.2].3H2O were treated with hydrochloric acid solutions with concentration up to 2.0 N. It was established that acid treatment leads to significant dealumination (the molar ratio of Si/Al increases from 3.6 to 9.5) and decationization (the total charge per aluminium atom decreases from 1 to 0.68), sodium and magnesium are mainly leached, calcium and potassium does not take part in the decationization process. Powder X-ray diffraction patterns show that hydrochloric acid solutions with a concentration up to 2.0 N do not lead to amorphization of the zeolite microporous crystal structure, but can gradually dissolve it. The adsorption of water vapor indicates the availability of micropores for the entry of small polar molecules, benzene adsorption shows a slight increase of hydrophobicity of the surface as a result of acid treatment. Nitrogen adsorption-desorption isotherms show acid-mediated sharp increase of adsorption in micropores and of the surface area, as well as changes in the mesoporous system, leading to the prevalence of pores with a diameter of 3 – 10 nm. The concentration of dilute solutions of hydrochloric acid is determined, which provides availability of micropores for large ions and nonpolar molecules, but at which dealumination is insignificant and ion-exchange capacity remains at a sufficient level. Materials obtained by acid treatment of heulandite can be used as adsorbents, ion exchangers, and carriers of biologically active substances and metal ions.
Porównanie komercyjnego i darmowego oprogramowania do przetwarzania chmur punktów
Authors: Antova Gergana , Peev Ivan
Published: June 2024

Terrestrial laser scanning technology is becoming increasingly common for automated spatial data acquisition and digitization in the fields of surveying, civil engineering and architecture. The data from measurements made with terrestrial laser scanners are a huge array of points in space, called a point cloud, which describes the captured surface of the object under study. The point cloud processing is performed in specialized software products for handling measurements from laser scanners, which provide different possibilities for manipulating the point cloud and forming different results. The software available on the market differs according to its data processing capabilities and functionalities, application areas, methods used, manufacturer and cost. To be able to perform spatial data processing and analysis correctly and with high quality, it is important to understand the available functionalities of the different software products and their advantages and disadvantages compared to others. A comparison is made for three software packages for point cloud processing - Autodesk ReCap Pro, CloudCompare and Trimble RealWorks. The different functionalities available in the products are described and presented on small building measurements along with their performance accuracy and efficiency. The strengths and weaknesses of the different software products are identified through the comparison performed. The first section describes the basic principles of the terrestrial laser scanning method. In section two, the different point cloud processing software products on the market are presented, together with a description of the different file formats for data exchange and a theoretical section on point cloud registration, filtering, and modelling. The third section contains a presentation of the main functions and processing capabilities in Autodesk ReCap Pro, CloudCompare and Trimble RealWorks software. The fourth section describes the data used for the study, the measurements performed, their processing and results in the three software, together with an assessment of accuracy by control measurements. Section five contains conclusions and implications.
Bakteryjna redukcja siarczanów jako odpowiednia metoda usuwania siarczanów z kwaśnych wód kopalnianych
Authors: Luptakova Alena , Macingova Eva , Hroncova Jana , Balintova Magdalena , Cikotova Adriana , Luptak Miloslav
Published: June 2024

The aim of this work was to investigate of the sulfates removal from acid mine drainage (AMD) by biological method using sulfate-reducing bacteria (SRB). A sample of AMD out-flowing from the Pech shaft of the abandoned and flooded Smolník deposit in Slovak Republic was studied. The untreated AMD (with contents metals) and treated AMD i.e. after of the metals removing by the synthetic sorbent Slovakite were used. The base of the biological sulfates elimination was the sulfates bacterial reduction under influence of SRB genera Desulfovibrio. These bacteria realize the sulfates reduction to hydrogen sulfide at the simultaneously oxidation of energetic substrate. Standard selective nutrient medium DSM-63 and modified selective nutrient medium DSM-63 (without sulfates contents) with standard amount of sodium lactate (as energetic substrate) were used in the experiments with untreated AMD. Standard selective nutrient medium DSM-63 and modified selective nutrient medium DSM-63 with standard, double and triple amount of sodium lactate were used in the experiments with treated AMD. In the case of untreated AMD has been reached low removing of sulfates - 20% efficiency (standard medium) and 26% (modified medium). The formation of heterogeneous precipitates containing metals pointed to the need for treatment of AMD by the initial removal of metals by sorption on Slovakite sorbent and subsequent removal of sulfates by bacterial reduction. The results of experiments with AMD treated in this way showed 49%, 70% and 88% efficiency of sulfate removal when using sodium lactate in standard, double and triple amounts. The results of this work suggest that ratio of substrate quantity and sulfate concentration is one of the key parameter of sulfate reducing condition. However, the price of the energy substrate is also an important factor. Therefore, subsequent experiments will be focused on the use of the more affordable substrates (e.g. whey) or mixed bacterial culture of SRB, which will also be able to use the products of decomposition of basic energetic substrates.
Pengaruh Pendekatan PMRI Terhadap Kemampuan Pemahaman Matematis Peserta Didik Pada Pembelajaran Matematika Kelas VII SMP
Authors: Bellinda Bellinda , Pandra Viktor , Fauziah Anna
Published: June 2024

Penelitian ini bertujuan untuk mengetahui pengaruh pendekatan PMRI terhadap kemampuan pemahaman matematis siswa pada mata pelajaran Bangunan Luar Angkasa. Penelitian ini dilakukan di SMPN B. Srikaton. Metode yang digunakan adalah desain penelitian Quasi Experimental Design dan Nonequivalent Control Group Design. Dalam penelitian ini teknik pengambilan sampel yang digunakan adalah simple random sampling. Dari tujuh kelas populasi diambil dua kelas sampel yaitu kelas VII. 3 sebagai kelas eksperimen dan VII. 2 sebagai kelas kontrol. Data kemampuan pemahaman matematis diperoleh dari skor pre-test dan post-test. Data dianalisis menggunakan uji t sampel independen. Hasil penelitian menunjukkan bahwa kelas eksperimen mempunyai kemampuan pemahaman matematis yang lebih tinggi dibandingkan kelas kontrol. Hal ini dibuktikan dengan analisis statistik menggunakan uji Independent Sample T Test yang menunjukkan bahwa thitung > ttabel yaitu 3,30 > 1,67 dengan tingkat signifikansi 0,05, sehingga dapat disimpulkan bahwa pendekatan PMRI berpengaruh signifikan terhadap kemampuan pemahaman matematis siswa dibandingkan dengan yang menggunakan pembelajaran.
Penelitian ini bertujuan untuk mengetahui pengaruh pendekatan PMRI terhadap kemampuan pemahaman matematis siswa pada mata pelajaran Bangunan Luar Angkasa. Penelitian ini dilakukan di SMPN B. Srikaton. Metode yang digunakan adalah desain penelitian Quasi Experimental Design dan Nonequivalent Control Group Design. Dalam penelitian ini teknik pengambilan sampel yang digunakan adalah simple random sampling. Dari tujuh kelas populasi diambil dua kelas sampel yaitu kelas VII. 3 sebagai kelas eksperimen dan VII. 2 sebagai kelas kontrol. Data kemampuan pemahaman matematis diperoleh dari skor pre-test dan post-test. Data dianalisis menggunakan uji t sampel independen. Hasil penelitian menunjukkan bahwa kelas eksperimen mempunyai kemampuan pemahaman matematis yang lebih tinggi dibandingkan kelas kontrol. Hal ini dibuktikan dengan analisis statistik menggunakan uji Independent Sample T Test yang menunjukkan bahwa thitung > ttabel yaitu 3,30 > 1,67 dengan tingkat signifikansi 0,05, sehingga dapat disimpulkan bahwa pendekatan PMRI berpengaruh signifikan terhadap kemampuan pemahaman matematis siswa dibandingkan dengan yang menggunakan pembelajaran konvensional.
Penerapan Model PBL Berbantuan Media Pembelajaran Interaktif untuk Meningkatkan Kemampuan Berpikir Kritis Siswa
Authors: Noviyanti Baiq Elisa , Baidowi  , Salsabila Nilza Humaira , Turmuzi Muhammad
Published: June 2024

This study aims to determain to increase the student’s ability to think more critize in number pattern material matery class VIII MTsN 1 Lombok Barat 2023/2024 with PBL model with interactive lesson media. The methode that used in this research is experimental methode. This research have been taken in two classes, the first one is experimental class and the other one is control class. The experiment class is used PBL model with interactive lesson media. Meanwhile, the control class is used PBL model. The instrument that used in this research is interactive PPT and the instrument that used in collecting data is the ability test of critical thinking. The average score of theexperimental class was 72.03 and the average score of the controlclass was 59.72. This means that learning using the PBL model assisted by interactive learning media is more effective than learning using the PBL model. The initial average score ofexperimental class students was 67.55 after applying the PBLmodel assisted by interactive learning media obtained an averagescore of 72.03. This shows that there is an increase of thestudent’s in critical thinking skills of number pattern material ofgrade VIII MTsN 1 Lombok Barat 2023/2024 after applying thePBL model assisted by interactive learning media.
Pengaruh Penggunaan Media Audiovisual Terhadap Hasil Belajar Matematika Siswa Pada Suplemen Pembelajaran Melalui Daring
Authors: Sazali Nur Safira , Arjudin Arjudin , Kurniawan Eka , Sarjana Ketut
Published: June 2024

Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan media audiovisual terhadap hasil belajar matematika siswa pada suplemen pembelajaran melalui daring. Jenis penelitian ini merupakan penelitian eksperimen. Populasi dalam penelitian ini adalah siswa kelas VIII, dengan sampel yang ditentukan dengan teknik random sampling. Sampel dalam penelitian ini yaitu siswa kelas VIII-A sebagai kelas eksperimen yang diberikan perlakuan berupa penggunaan media audiovisual dan siswa kelas VIII-B sebagai kelas kontrol yang menggunakan pembelajaran konvensional. Instrumen yang digunakan dalam penelitian ini berupa tes hasil belajar siswa. Analisis data yang digunakan yaitu uji normalitas dan uji homogenitas sebagai uji prasyarat dan uji t sebagai uji hipotesis dan uji effect size untuk menentukan apakah ada pengaruh dari penggunaan media audio-visual terhadap hasil belajar siswa. Berdasarkan hasil uji hipotesis menggunakan uji t diperoleh pada taraf signifikansi 5% diperoleh thitung = 3,4599 dan ttabel = 1,666 dimana hasil ini menunjukkan bahwa thitung > ttabel sehingga H0 ditolak dan Ha diterima. Hasil uji effect size mendapatkan hasil 0,804 yang berkategori tinggi yang artinya terdapat pengaruh penggunaan media audio-visual terhadap hasil belajar matematika siswa pada suplemen pembelajaran melalui daring.
Analisis Kemampuan Pemecahan Masalah Matematika Materi Aritmetika Sosial Ditinjau Dari Gaya Belajar Siswa
Authors: Hijriani Laelatul , Sri Subarinah  , Syahrul Azmi  , Baidowi
Published: June 2024

Tujuan dari penelitian ini adalah untuk mendeskripsikan kemampuan pemecahan masalah pada materi aritmetika sosial siswa ditinjau dari gaya belajar. Penelitian ini merupakan penelitian deskriptif kualitatif. Instrumen penelitian ini berupa angket, tes dan wawancara. Dari 151 siswa yang diberikan angket gaya belajar, terdapat 100 siswa dengan gaya belajar visual, 30 siswa dengan gaya belajar auditorial dan 21 siswa dengan gaya belajar kinestetik. Sebanyak 32 siswa diberikan tes urain materi aritmetika sosial, kemudian dipilih 9 subjek penelitian untuk diwawancarai yang terdiri dari 3 siswa pada tiap-tiap gaya belajar dan dipilih melalui purposive sampling untuk memperdalam data. Analisis data kualitatif menggunakan 3 tahapan yaitu reduksi, penyajian dan penarikan kesimpilan. Hasil penelitian menunjukkan kemampuan pemecahan masalah, siswa dengan gaya belajar visual sudah mampu mencapai tahap memahami soal/masalah, merancang strategi penyelesaian masalah, menyelesaikan masalah dan memeriksa kembali penyelesaian yang didapat. Siswa visual termasuk dalam kategori kemampuan pemecahan masalah tinggi. Siswa dengan gaya belajar auditorial sudah mampu mencapai tahap memahami soal/masalah, merancang strategi penyelesaian masalah dan menyelesaikan masalah. Siswa auditorial termasuk dalam kategori kemampuan pemecahan masalah sedang. Siswa dengan gaya belajar kinestetik sudah mampu mencapai tahap memahami soal/masalah dan merancang strategi penyelesaian masalah. Siswa kinestetik termasuk dalam kategori kemampuan pemecahan masalah rendah.
PENINGKATAN KEMAMPUAN PENALARAN MATEMATIS SISWA SMP MELALUI PENDEKATAN CONTEXTUAL TEACHING AND LEARNING
Authors: Mahmuzah Rifaatul , Sinaga Nurul Afni , Ainun Nur
Published: June 2024

Matematika merupakan cabang ilmu yang memberikan andil dalam perubahan cara berpikir dan bernalar seseorang sehingga kemampuan penalaran penting untuk ditingkatkan. Guru sebagai pendidik harus memilih pendekatan yang tepat dalam meningkatkan kemampuan bernalar siswa. Contextual Teaching and Learning (CTL) merupakan salah satu pendekatan dalam pembelajaran yang diharapkan dapat memberi peningkatan pada kemampuan penalaran matematis siwa. Tujuan dari penelitian adalah untuk mengkaji peningkatan kemampuan penalaran matematis siswa yang diajarkan dengan pedekatan Contextual Teaching and Learning (CTL) dan siswa yang diajarkan dengan pembelajaran biasa. Penelitian ini termasuk penelitian eksperimen yang menggunakan Pretest-Posttest Control Grup Design. Populasi dalam penelitian adalah seluruh siswa kelas VIII SMP Negeri 1 Darul Imarah, Aceh Besar. Sampel penelitian terdiri dari dua kelas yaitu kelas VIII2 sebagai kelas eksperimen dengan dan kelas VII3 sebagai kelas kontrol yang dipilih secara random atau acak. Instrumen yang digunakan adalah tes kemampuan penalaran matematis, sedangkan uji statistik yang digunakan untuk menganalisis peningkatan kemampuan penalaran matematis adalah uji parametrik yaitu uji t sampel bebas. Hasil penelitian menunjukkan bahwa peningkatan kemampuan penalaran matematis siswa yang diajarkan dengan pendekatan CTL lebih baik dibandingkan siswa yang diajarkan dengan pembelajaran biasa.
PENGEMBANGAN PERANGKAT MODEL PROBLEM BASED LEARNING DENGAN GOOGLE CLASSROOM UNTUK MENINGKATKAN PENGUASAAN KONSEP SUHU DAN KALOR PESERTA DIDIK
Authors: Abdullah Eka Nur Wulandari , Sutrio  , Ayub Syahrial , Doyan Aris
Published: June 2024

Penetian ini bertujuan menghasil perangkat pembelajaran model problem based learning dengan  google classroom yang layak, efektif dan praktis untuk meningkatkan penguasaan konsep pada materi suhu dan kalor pada peserta didik.  Jenis penelitian ini  adalah penelitian pengembangan (Reasearch and Development) dengan menggunakan 4D model (Define, Design, Development dan Desseminate). Produk yang telah dikembangkan pada penelitian ini adalah silabus, RPP, LKPD, Google Classroom, dan Instrumen tes penguasaan konsep. Data kelayakan, keefektifan dan kepraktisan dari perangkat pembelajaran diperoleh dari uji kelayakan, uji N-gain dan uji kepraktisan. Data kelayakan diperoleh dari penilaian 6 validator yang terdiri dari 3 validator ahli dari Dosen Pendidikan Fisika Universitas Mataram dan 3 validator praktisi dari Guru fisika SMAN 3 Mataram. Data Keefektifan diperoleh dari hasil uji N-Gain yang dilakukan pada 17 peserta didik di SMAN 3 Mataram. Data Kepraktisan diperoleh dari hasil observasi ketelarksanaan pembelajaran dan angket respon peserta didik. Hasil analisis uji kelayakan perangkat diperoleh sebesar 89.7% dengan kriteria sangat layak.  Hasil analisis uji kefektifan  dengan menggunakan hasil uji N-gain diperoleh sebesar 73% masuk dalam katergori tinggi dan kriteria cukup efektif. Adapun hasil uji uji kepraktisan diperoleh sebesar 90% dengan kriteria sangat praktis. Berdasarkan hasil analisis data yang telah diperoleh dapat disimpulkan bahwa perangkat pembelajaran yang telah dikembangkan menggunakan model problem based learning dengan google classroom dinyatakan layak, efektif dan praktis untuk meningkatkan penguasaan konsep peserta didik pada materi suhu dan kalor.
Digital-Game Based Learning Innovation on POE: Constructing Student’s Mental Models on Temperature Effect on Reaction Rate
Authors: Rahmatania Finny , Wiji Wiji , Mulyani Sri
Published: June 2024

The aim of this study is to identify how the POE learning integrated into D-GBL can construct student’s mental models on temperature effect on reaction rate and the game design is created. This research is a part of the Research and Development (R&D) with Borg and Gall model. This study is focused on the third stage. The study began with collecting information, planning product, and prototype development. For product design, the study created mission and sub-missions to represent the POE steps, which are predicting, observing, and explaining. The information was collected from various literature reviews on D-GBL and mental model. For product design, mission and sub-missions were created to represent POE steps. Next, the prototype was developed in the form of a game design document. Students must answer various questions to complete these missions and sub-missions. If the answers are given incorrect, the game restart from the beginning of that mission. Therefore, D-GBL integrated in the POE model can construct students' mental models.
Pre-Service Chemistry Teachers’ Preconceptions about Rare Earth Coordination Chemistry: Results from an Explorative Interview Study
Authors: Kisworo Banu , Mudzakir Ahmad , Liliasari  , Permanasari Anna
Published: June 2024

This research aims to identify students' preconceptions about rare earth coordination chemistry. The method used in this research is exploratory interviews. This research involved 25 pre-service chemistry teacher at a university in West Java Province, Indonesia. The collected data was analyzed using qualitative content analysis. The research results showed that 60% of students were able to identify electronic waste as a source of valuable metals, but others did not know that there were rare earth metals contained in it. As many as 32% know ionic liquids as environmentally friendly solvents, but the majority of students do not understand the physicochemical properties of ionic liquids and the interactions between ionic liquids and rare earth metals. As many as 8% of students were able to explain the reaction to form rare earth metal coordination compounds correctly, while only 4% were able to explain the concept of luminescence in these compounds. These findings indicate the need for coordination chemistry course design that accommodates students' learning needs and links them to relevant environmental contexts to improve students' understanding and systems thinking skills.
Quality of Physics Teaching Module Based on Problem-Based Learning Model Integrated with PhET Simulation on Energy and Its Transformation
Authors: Yusuf Muhammad , Yunginger Raghel , Nainggolan Riris
Published: June 2024

The present work seeks to develop physics learning tools by integrating PhET simulations with problem-based learning models on energy and its transformation on Vocational High School in class X of SMK Negeri 1 Sentani. It applied the 4D model, consisting of the define, design, develop, and disseminate stages. The developed teaching modules have met the quality criteria of the learning material analyzed based on aspects of validity, practicality, and effectiveness. Based on validity, approximately 85% of the designed learning tools are categorized as Very Valid. Based on practicality, the learning implementation can be effectively applied 87.48%, and students responded very positively with a weight of 4. Meanwhile, students were actively involved based on effectiveness, with approximately 84.24% active participation. Furthermore, based on student learning outcomes, it indicated that 97% of students completed, with only 2 out of 32 students failing. Student learning outcomes tend to be higher in the cognitive domains of C4 (analysis) and C5 (evaluation) compared to C3 (application) and C6 (creation). This research resulted in the suitable learning tools for class X students at SMK Negeri 1 Sentani.