bluuebunny/crossref_metadata_2025 huggingface dataset:
geomágneses viharok anatómiája és következményeik
Authors: Kis Árpád
Published: October 2023

A tanulmány részletesen bemutatja a geomágneses vihar keletkezési folyamatát és fő fázisait. A szerző ismerteti a skálázási lehetőséget – amely az „enyhe” (G1) fokozattól a „rendkívüli” (G5) fokozatig terjed –, illetve a geomágneses vihar lehetséges következményeit. Vizsgálja a geomágneses vihar esetén kialakuló kéregáramok keletkezési mechanizmusát, és a jelenség általokozott veszélyeket. Végül áttekintést ad néhány történelmi jelentőségű geomágneses viharról, és bemutatja az azok kapcsán megfigyelt jelenségeket.
Política, saber y ética: la necesidad de replantear la enseñanza-aprendizaje de las matemáticas
Authors: Radford Luis
Published: October 2023

En este artículo se exponen algunos elementos fundamentales para replantear la enseñanza-aprendizaje de las matemáticas más allá del proyecto economicista impuesto actualmente por el neoliberalismo: el proyecto que reduce al estudiante a capital humano y convierte la escuela en un sitio de adquisición de habilidades para la economía de mercado. Se sugiere la importancia de cuestionar la orientación de los saberes que ofrece la escuela y el tipo de individuo que la escuela forma en su quehacer diario. El replanteamiento de la enseñanza-aprendizaje de las matemáticas que se esboza en este artículo se enmarca en una perspectiva en la que la educación matemática se concibe como un proyecto social, político, histórico y cultural para la formación de individuos éticos y reflexivos, capaces de posicionarse críticamente en prácticas matemáticas inclusivas y solidarias, y de imaginar nuevas posibilidades de acción y pensamiento.
pensamento computacional no novo ensino médio
Authors: Lucas Leandro Mário , Moita Filomena Maria Gonçalves da Silva Cordeiro , Viana Lucas Henrique
Published: October 2023

A inclusão do pensamento computacional (PC) na Base Nacional Comum Curricular (BNCC), sobretudo associado à matemática e seus desdobramentos no ensino médio brasileiro reformado, provocaram mudanças também nos materiais didáticos produzidos com potenciais reflexos na prática docente. Cientes disso, neste artigo, buscamos responder a seguinte pergunta: Qual o impacto da inserção do PC no conteúdo das obras didáticas da área de matemática e suas tecnologias do novo ensino médio? Nessa perspectiva, objetivamos analisar o impacto da inserção do PC no conteúdo das obras didáticas da área de Matemática e suas tecnologias do novo ensino médio. Nossa pesquisa, de abordagem qualitativa, é do tipo documental, e seu traçado metodológico foi construído com base nos pressupostos da análise de conteúdo. Para tanto, utilizamos como eixos de análise a frequência com que são feitas menções ao PC, sua posição na estrutura das obras e das coleções e a importância que lhe é dada para a aprendizagem matemática. Os dados foram analisados à luz de investigações sobre o PC e o novo ensino médio. Os resultados mostraram que o PC impactou significativamente os conteúdos da maioria das obras que analisamos devido à frequência com que é mencionado, à posição que ocupa em sua estrutura e à importância que lhe é dada para a aprendizagem matemática, com potenciais implicações na prática e na formação do professor dessa disciplina no novo ensino médio.
Clinical Characteristics of Patients with Aggressive Systemic Mastocytosis and Efficacy Analysis of Systemic Therapies: A Monocentric Real-World Experience
Authors: Açar Ibrahim halil , Guvenc Birol
Published: October 2023

Introduction and Objective: Aggressive systemic mastocytosis is a lethal disease with poor prognosis in which organ damage due to mast cell activation is observed and response to medical treatment is low. The aim of this study was to evaluate the clinicopathological characteristics of ASM patients and the efficacy of cytoreductive treatments. Patients and methods: The clinicopathological features and survival analyses of 27 patients who were followed up with a diagnosis of aggressive systemic mastocytosis (ASM) and treated with cytoreductive therapy between 2017 and 2021 in our center were evaluated. Results: The mean age of the patients was 59 years and there was a slight male gender predominance (5: 4). KITD816V mutation was positive in 85% of cases. The most common symptoms at the time of diagnosis were fatigue, pruritus and dyspeptic complaints, respectively. The number of patients evaluable for response to imatinib, peginterferon alfa-2a (Peg-Ifn), cladribine and midostaurin treatments were 4, 7, 8 and 8, and the overall (partial) response rates were 25% (25%), 42% (28%), 50% (38%) and 37% (25%), respectively. Most of the responses were partial (PR) and major response (MR) was seen in very few patients. Increasing ECOG score, serum tryptase level, spleen size, and WBC count increased mortality, while decreasing hemoglobin level increased mortality. General median overall survival (OS) was 27.74 months (35.11-143.88). Two-year survival rate was 88.9% and 5-year survival rate was 63.1%. Median overall disease-free survival (DFS) was 10.86 months (9.27-12.50). Two-year DFS was 22.2%, while 5-year DFS was only 7.4%. Conclusion: The depth of response and response rates of the current therapies used in the treatment of ASM are quite low and insufficient to control the disease. Since there is an unmet therapeutic area in the treatment of ASM, there is a need for the development of new treatment modalities.
Pengaruh Pembelajaran Jarak Jauh Berbasis Daring Terhadap Pembentukan Watak Kewarganegaraan Mahasiswa Program Studi PPKn Universitas Lampung
Authors:   Universitas Lampung, Alfi Lailatul
Published: October 2023

Tujuan penelitian ini untuk mengetahui pengaruh pembelajaran jarak jauh berbasis daring terhadap pembentukan watak kewarganegaraanmahasiswa program studi PPKn Universitas Lampung. Metode penelitian yang digunakan dalam penelitian ini adalah metode deskriptif dengan pendekatan kuantitatif. Subjek penelitian adalah mahasiswa program studi PPKn angkatan 2017, 2018, dan 2019. Sampel dalam penelitian ini berjumlah 66 responden. Teknik pengumpulan data menggunakan teknik utama yaitu angket dan teknik penunjang yaitu wawancara. Alat bantu untuk menganalisis data pada penelitian ini yaitu menggunakan SPSS versi 25. Hasil penelitian menunjukkan bahwa terdapat pengaruh pembelajaran jarak jauh berbasis daring terhadapwatak kewarganegaraan mahasiswa program studi PPKn Universitas Lampung besarnya presentase pengaruhnya yaitu 75,1% dengan indikator variabel independen (X) yaitu: desain pembelajaran, lingkungan belajar, dan layanan pendukung dan untuk variabel dependen (Y) yaitukemandirian, disiplin, dan tanggung jawab. Dengan demikian dapat disimpulkan bahwa pembelajaran jarak jauh berbasis daring sebesar 75,1% terhadap watak kewarganegaraan mahasiswa program studi PPKn Universitas Lampung.
Faktor-Faktor Yang Mempengaruhi Kesulitan Belajar Peserta Didik Pada Pembelajaran Pendidikan Pancasila dan Kewarganegaraan Di SMP Negeri 3 Gadingrejo
Authors:   Universitas Lampung, Anggraeni Fadila
Published: October 2023

Tujuan penelitian ini adalah untuk mengetahui dan menjelaskan tentang faktor-faktor yang mempengaruhi kesulitan belajar peserta didik pada pembelajaran Pendidikan Pancasila dan Kewarganegaraan di SMP Negeri 3 Gadingrejo Kabupaten Pringsewu. Metode yang digunakan adalah metode deskriptif dengan pendekatan kuantitatif. Populasi dalam penelitian ini adalah peserta didik yang nilainya kurang dari KKM di kelas VII SMP Negeri 3 Gadingrejo Kabupaten Pringsewu tahun ajaran 2019/2020, yang membuka 182 peserta idik. Sampel diambil sebanyak 20% dari populasi yaitu 36 responden. Pengumpulan data menggunakan teknik angket, wawancara, dan dokumentasi. Teknik analisis data menggunakan interval dan proporsi. Berdasarkan hasil penelitian menunjukan bahwa faktor yang paling mempengaruhi kesulitan belajar peserta didik pada pembelajaran Pendidikan Pancasila dan Kewarganegaraan adalah motivasi (86,11%). Hal demikian disebabkan karena persaingan antar peserta didik sangat rendah, sehingga keinginan peserta didik untuk belajar juga rendah. Adapun faktor terbesar kedua dan seterusnya yang mempengaruhi kesulitan belajar peserta didik adalah intelegensi (83,33%), keluarga (77,88%), waktu (66,68%). Untuk faktor guru, sarana dan prasarana, serta teman memiliki persentase yang sama yaitu 52,78% dan faktor minat memiliki persentase 38,88%.
Sejarah Keberadaan Etnis Bugis Perantauan Di Teluk Betung Timur
Authors:   Universitas Lampung, Shobariyah Adilah , Susanto Henry , Ekwandari Yustina Sri
Published: October 2023

Sejak terjadi perlawanan dilakukan oleh Sultan Hasanuddin dari Kesultanan Bone mengakibatkan kondisi Sulawesi Selatan tidak aman maka, Etnis Bugis pergi merantau untuk mencari tempat tinggal dan sumber mata pencarian di tanah rantau. Rumusan masalah dari penelitian “Bagaimanakah Sejarah Keberadaan Etnis Bugis Perantauan di Teluk Betung Timur?”. Tujuan peneliti untuk mengetahui Sejarah Keberadaan Etnis Bugis Perantauan di Teluk Betung Timur. Metode yang digunakan adalah Penelitian Historis, penarikan dari informan dilakukan secara Teknik Snowball Sampling diperoleh sebanyak 8 informan dengan kriteria. peneliti menggunakan Teknik Wawancara, Teknik Kepustakaan dan Teknik Analisis data yang digunakan peneliti adalah teknik analisis data kualitatif. Hasil penelitian ini di peroleh data bahwa Etnis Bugis mempunyai sifat berani yang tinggi sehingga perantau, memiliki kemampuan melihat strategi berlayar di laut, dapat berinteraksi dengan masyarakat, mempunyai pribadi yang keras sehingga kadang terdapat permasalahan konflik yang datang menjadi pendorong dan penghambat Etnis Bugis Perantauan di Teluk Betung Timur. Berdasarkan hasil penelitian dapat disimpulkan bahwa hal yang menjadi pendorong Etnis Bugis mempunyai sifat pribadi yang berani, mencari daerah aman untuk mereka tinggali, kemampuan ilmu pengetahuan yang luas terkait kelautan, berinteraksi dan beradaptasi dengan baik oleh masyarakat sekitar dan hal yang menjadi penghambat Etnis Bugis yang menyebabkan perantau kesulitan dalam segi bahasa sehingga awal mulai berinteraksi masih menggunakan bahasa isyarat sampai ia bisa memahami bahasa daerah perantauan, dan mudah menimbulkan konflik yang di bawakan perawakan dari Etnis Bugis yang berani.
Pengaruh Pembelajaran Daring Terhadap Pemahaman Konsep Keberagaman Peserta Didik Di SMP Negeri 1 Banyumas Kabupaten Pringsewu
Authors:   Universitas Lampung, Ningsih Purnia
Published: October 2023

Tujuan penelitian ini untuk mengetahui pengaruh pembelajaran daring terhadap pemahaman konsep materi keberagaman peserta didik di SMP Negeri 1 Banyumas. Jenis penelitian yang digunakan yaitu dengan pendekatan kuantitatif. Subjek penelitian adalah peserta didik kelas VII SMP Negeri 1 Banyumas yang berjumlah 128 orang. Sampel dalam penelitian ini adalah 56 orang responden. Pengumpulan data diperoleh dengan menggunakan instrumen penelitian berupa teknik angket pada variabel independen (X) dan teknik tes pilihan ganda pada variabel dependen (Y). Alat bantu untuk menganalisis data pada penelitian ini yaitu menggunakan SPSS 20. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang kuat antara pembelajaran daring terhadap pemahaman konsep peserta didik kelas VII sebesar 71,8 % dengan indikator variabel independen (X) yaitu: desain pembelajaran, pelaksanaan pembelajaran, dan evaluasi pembelajaran serta variabel dependen (Y) yaitu: toleransi, musyawarah dan kerja sama. Dengan demikian dapat disimpulkan bahwa pembelajaran daring berpengaruh sebesar 71,8 % terhadap pemahaman konsep materi keberagaman peserta didik kelas VII SMP Negeri 1 Banyumas.
Musik Pada Kampanye Pemilu Orde Baru 1971-1997
Authors:   Universitas Lampung, Pratiwi Arrum Indah
Published: October 2023

Musik merupakan salah satu bagian dari kehidupan dan perkembangan jiwa manusia, khususnya dalam berekspresi. Tidak hanya sebagai hiburan semata, akan tetapi musik memiliki peran dan fungsi dalam aspek-aspek kehidupan lainnya seperti politik, sosial, sistem kepercayaan dan lain-lain. Dalam suatu periode situasi politik di Indonesia, musik memiliki peran dan fungsi dalam kegiatannya yang mewarnai jalannya pemilihan umum di Indonesia. Tujuan Penelitian ini adalah untuk mengetahui Bagaimana Pemanfaatan Musik pada masa kampanye pemilu Orde Baru 1971-1997. Metode yang digunakan pada penelitian ini adalah pendekatan kualitatif. Penelitian ini menggunakan teknik pengumpulan data kepustakaan dan dokumentasi. Teknik analisis data yang digunakan adalah teknik analisis data kualitatif. Hasil penelitian menunjukan bahwa terdapat 3 pemanfaatan musik melalui public figuresepanjang masa kampanye Orde Baru yaitu : (1) Dijadikan Vote Getter, vote getter mengambil pheran penting dalam mendapatkan suara. Karena tugas vote getter itu sendiri sebagai penarik simpati dan daya tarik masyarakat agar memilihpartai yang diusung. (2) Simbol partai politik, yaitu musik sebagai perwakilan yang mewakili partai tersebut sesuai yang sesuai dengan arah ideologinya. (3)Sebuah iburan, musik dinilai salah satu jenis yang disenangi semua kalangan dari berbagai jenis usia.Maka dari itu masyarakat dapat menikmati gelaran musik yang dihadirkan pada saat menghadirkan kampanye partai politik.Adapun manfaat dari penggunaan musik pada kampanye Orde Baru ialahMenaikan Popularitas parpol, Meningkatnya Perolehan Suara, Memeriahkan panggung kampanye, dan Kontribusi Integrasi sosial. Kesimpulan penelitian ini adalah pemanfaatan musik dalam periode kampanye Orde Baru ini menjerumus bahwa musik diharapakan berfungsi untuk mendapatkan suara dan menang dalam pemilu.
Perlawanan Sultan Sepuh V dalam Menghadapi VOC di Cirebon Tahun 1773-1787
Authors:   Universitas Lampung, Sari Lara , Susanto Henry , Perdana Yusuf
Published: October 2023

Tujuan penelitian ini adalah untuk mengetahui keberhasilan dan kegagalan perlawanan Sultan Sepuh V. Metode yang digunakan dalam penelitian ini adalah metode historis. Adapun langkah-langkah dalam metode historis yaitu, Heuristik, kritik, interpretasi dan historiografi. Berdasarkan hasil penelitian didapatkan bahwa sebab-sebab perlawanan Sultan Sepuh V terhadap VOC yakni adanya intervensi politik yang menyebabkan hilangnya hak sultan dan monopoli perdagangan yang sangat menyengsarakan masyarakat, proses perlawanan yang dilakukan yakni dengan melanjutkan pembangunan Gua Sunyaragi sebagai basis perlawanan, mendirikan basis perlawanan baru di Desa Matangaji dan melakukan perundingan yang berujung kematian, keberhasilan dari berbagai perlawanan yakni memproduksi senjata, strategi dalam pembangunan markas-markas perlawanan dan kegagalan perlawanan Sultan Sepuh V adalah implementasi peraturan VOC Tahun 1752 yang berakibat hilangnya hak sultan dalam mewariskan tahta, kesejahteraan dan kesehatan masyarakat yang menurun dan krisis percayaan dari kerabat dekat Sultan yakni Ki Muda yang mengkhianati dan membunuh Sultan Sepuh V.
Industri Kain Perca Di Desa Sukamulya Kabupaten Pringsewu Tahun 2000-2019
Authors:   Universitas Lampung, Wati Fina Kartika , Imron Ali , Sumargono Sumargono
Published: October 2023

Industri merupakan salah satu upaya masyarakat dalam meningkatkan kualitas hidup dengan tujuan untuk meningkatkan pendapatan dan kesejahteraan masyarakat. Penelitian ini bertujuan untuk mengetahui perkembangan teknologi dalam industri kain perca serta dampak industri kain perca bagi kehidupan masyarakat pengrajin kain perca Desa Sukamulya Kabupaten Pringsewu. Penelitian ini menggunakan jenis penelitian deskriptif kualitatif dengan sumber data primer dan sekunder. Teknik pemilihan informan menggunakan teknik sampling snawball dengan informan Kepala desa Sukamulya dan pemilik industri kain perca Desa Sukamulya. Hasil dari penelitian ini, mengenai perkembangan teknologi dalam industri kain perca serta dampak industri kain perca bagi kehidupan masyarakat Desa Sukamulya Kabupaten Pringsewu adalah terjadi perkembangan teknologi indutri yang awalnya menggunakan peralatan sederhana ke peralatan yang lebih modern sehingga terjadi peningkatan produksi kain perca di masyarakat, sehingga masyarakat dapat memenuhi kebutuhan hidupnya. Dengan berkembangnya perkembangan industri kain perca di Desa Sukamulya berdampak pada kesejahteraan masyarakat pengrajin kain perca dalam kehidupan sosial ekonominya
Upaya Pelestarian Budaya Sakura Paksi Buay Pernong di Tengah Arus Budaya Global
Authors:   Universitas Lampung, Yanzi Hermi , Siswanto Edi
Published: October 2023

Penelitian ini bertujuan untuk menjelaskan dan mendeskripsikan upaya pelestarian budaya sakura paksi buay pernong di tengah arus budaya metode penelitian yang digunakan dalam penelitian ini adalah deskriptif pendekatan kualitatif dan jenis penelitiannya yaitu fenomenologis atau gejala yang ada pada masyarakat / persepsi tehadap budaya khususnya budaya sakura dengan subjek penelitian yaitu pengurus gedung dalom, tokoh adat, aparat pekon, tokoh masyarakat, tokoh agama, dan tokoh pemuda. Teknik pengumpulan data menggunakan pedoman wawancara, observasi, dan dokumentasi sedangkan analisis data menggunakan uji kredibilitas dan triangulasi. Hasil penelitian ini menunjukan bahwa adanya upaya aparat pekon serta masyarakat untuk melestarikan budaya sakura yaitu dengan mensosialisasikan sakura pada saat ada acara di balai pekon,menghadirkan sakura pada setiap kegiatan contohnya pada hari-hari besar seperti 17 agustusan serta setiap acara 1 tahun sekali yaitu pada saat Hari Raya Idul Fitri, menghadirkan budaya sakura dalam setiap kegiatan, menghadirkan muda-mudi. komponen pertama dalam terbentuknya generasi muda yang baik adalah keluarga. sosialisasi dan pengimplementasian atau pelaksanaan budaya sakura, memfilter budaya asing yang tidak sesuai dengan budaya kita yaitu budaya sakura, mensebarluaskan tentang budaya sakura melalui sosial media seperti jurnal dan artikel-artikel.
Kesenian wayang Sekelik sebagai Media Ekspresi Seni Pertunjukan Multikultur Di Lampung Tengah (Kajian Wayang Sekelik)
Authors:   Universitas Lampung, aqrobah lutfi , Sinaga Risma Margaretha , Triaristina Aprilia
Published: October 2023

Kesenian wayang adalah salah satu seni pertunjukan rakyat yang masih banyak penggemarnya hingga saat ini. Pertunjukan wayang dimainkan oleh seorang dalang dengan menggerakkan tokoh-tokoh pewayangan yang dipilih sesuai dengan cerita yang di bawakan. Kesenian Wayang Sekelik merupakan salah satu Wayang hasil dari adaptasi jenis Wayang Kulit Jawa. Tujuan penelitian ini adalah untuk mengetahui Kesenian Wayang Sekelik sebagai Media Ekspresi Seni Pertunjukan Multikultur di Lampung Tengah dengan mengumpulkan data dari beberapa informan. Penelitian ini dibuat dengan metode deskriptif dengan data kualitatif. Hasil analisis dari wawancara yang telah penulis lakukan dengan informan yaitu, Wayang Sekelik merupakan suatu bentuk ekspresi dari seni pertunjukan, yang dimaksud ekspresi disini adalah alternatif penyampaian budaya atau mengekspresikan budaya kepada masyarakat Lampung Tengah yang multikultur dengan menggunakan media Wayang Lampung yaitu Wayang Sekelik, yang bentuknya berupa Sastra Lampung, Musik Lampung, Ornamen Lampung serta Tarian Lampung. Wayang Sekelik merupakan pertunjukan seni yang muncul dan di tampilkan dalam pertunjukan yang mana terdapat beberapa komponen meliputi Wayang Kulit, Wayang Orang, Sastra, Musik serta tari-tarian.
Inovasi Penerapan Kurikulum Pembelajaran Ekonomi di Sekolah Menengah Atas
Authors:   Universitas Sebelas Maret, Yuliyanto Riyan , Andriyati Rizka
Published: October 2023

Artikel ini bertujuan mendeskripsikan inovasi pengembangan kurikulum pembelajaran ekonomi di sekolah menengah atas berdasarkan pada tinjauan teoritis. Penelitian dilakukan dengan metode library research yaitu menelaah berbagai sumber pustaka terkait pengembangan kurikulum dan disusun secara runtun dan terarah. Hasil penelitian menunjukan inovasi kurikulum dalam pembelajaran ekonomi di sekolah menengah atas penting dilakukan untuk menyesuaikan perkembangan zaman. Selama ini siswa hanya diajarkan teori tentang perekonomian tanpa dihubungkan dengan peristiwa yang ada dalam kehidupan sehari-hari. Terdapat empat strategi inovasi kurikulum yaitu strategi fasilitatif, strategi pendidikan, strategi bujukan (persuasive strategy) dan strategi paksaan. Selanjunya terdapat lima hal yang perlu diperhatikan dalam penerapan inovasi kurikulum yaitu inovasi kurikulum dirumuskan secara jelas dengan landasan kuat, metode pengembangan kurikulum partisipatif, terdapat alternatif pilihan untuk mempermudah penerapan inovasi, penggunaan data dan informasi nyata mengena kondisi dan situasi lembaga pendidikan.
An Introductory Note to Quantum Modeling in Finance
Authors: Light Gregory L.
Published: October 2023

This paper introduces the basic construct of quantum mechanics to financial researchers by applying it to a modeling of the stock prices. We present the meanings of the wavefunction, the Hamiltonian operator and the Schrödinger's equation in common mathematical terms, with an illustration of how the ever-present binary random variable can be connected to the spin operator in physics.
SFL-BASED ANALYSIS OF THEMATIC PROGRESSION OF ENGLISH GRADUATE PERSONAL STATEMENTS
Authors: Haji Ghada
Published: October 2023

The main problem faced by graduate and undergraduate students in writing their university application letters includes the difficulties of producing a coherent and cohesive text that can convince the evaluators of their suitability to the target program. The present study was conducted principally to investigate the thematic progression patterns realized in students’ statements (henceforth PSs), for their considerable role in shaping the overall structure of the text and unfolding the writer’s identity. The corpus consists of 20 PSs written by graduate English students applying for a Master's in Sociology in Western institutions. Eggin’s (2004) framework of Theme and Rheme was applied to analyze the thematic progression patterns (TPP) observed and find out the dominant pattern revealed from the students’ texts. The findings of the analysis indicated the presence of two main thematic progression patterns, namely the Reiteration pattern and Zigzag pattern, with the total absence of the Multiple theme pattern. The obtained results of this work may offer valuable insights for academic writing instructions and material developers.
The Mediating Role of Networking Competence in The Relationship Between Market Knowledge Capability on SMES Performance
Authors: Yakin Nur
Published: October 2023

PurposeThis article investigated market knowledge capability’ role in enhancing performance and the impact of networking competence on SMEs’ performance.Method: The samples studied were 162 export-oriented furniture SMEs from Sukoharjo. The purposive sampling technique collected the data. Only 142 samples were declared complete and feasible to continue hypothesis testing. Structural Equation Modeling (SEM) was implemented to check the hypothesis model.Result: This study found that the market knowledge capability constructs positively and significantly affected SMEs’ performance. Market knowledge positively influenced networking competence, while networking competence positively and significantly affected SMEs’ performance.
OPTICAL PROPERTIES OF Ag7SiS5I AND Ag7GeS5I SINGLE CRYSTALS
Authors: Shender I.O. , Pogodin A.I. , Filep M.J. , Malakhovska Т.О. , Pop M.M. , Kokhan O.P. , Suslikov L.M.
Published: October 2023

Compounds with a disordered structure attract significant scientific interest, since structural disorder directly affects the properties of the material. This paper presents a study of the optical properties of Ag7SiS5I and Ag7GeS5I single crystal, which are related to compounds with the structure of argyrodite. Single crystals of quaternary Ag7SiS5I and Ag7GeS5I were grown by the method of directed crystallization from the melt. Investigation of grown single crystals by the XRD method indicates that both compounds crystallize in SG F-43m. The optical properties were studied at room temperature (20°C) in the spectral range of 200–1100 nm. The beginning of the optical transmission region is observed at λ = 790 nm and λ = 860 nm for Ag7SiS5I to Ag7GeS5I, respectively. It was established that Ag7GeS5I single crystals have a higher bandwidth compared to Ag7SiS5I. When transitioning from Ag7SiS5I to Ag7GeS5I, a shift of the transmission region to a longer wavelength region is observed. The energies of direct allowed and forbidden optical transitions in Ag7SiS5I and Ag7GeS5I single crystals were determined using the Tauc equation. It was established that the corresponding energies values are higher in the case of the Ag7SiS5I single crystal for both considered optical transitions.

Keywords: argyrodites; single crystals; optical spectroscopy; optical transitions.
POTENTIOMETRY IN DETERMINING THE CONDITIONS FOR THE FORMATION OF TETRAFLUORBORATE AS AN ANALYTICAL FORM OF BORON
Authors: Fershal M.V. , Studenyak Ya. I.
Published: October 2023

The present paper deals with the research on the optimal conditions for the formation of fluoroborate as an analytical form of boron. Despite numerous scientific publications related to the determination of boron using various methods involving [BF4]ˉ ions as an analytical form, the conditions for obtaining the latter differ significantly. This difference is likely due to the complexity of the H3BO3-F--H3O+ system, where polymolecular forms of hydrofluoric acid can exist. Factors such as the inability to measure pH using a glass electrode, the velocity of the complexation process, and the requirement for specialized labware and equipment resistant to aggressive environments contribute to this complexity. In this study, potentiometry with PVC plasticized [BF4]ˉ - sensors, known for their metrological and operational characteristics, was used as a convenient tool to investigate such systems. The [BF4]ˉ - selective electrode based on the electroactive substance ion pair 2-(N-ethylcarbazole-3)-ethenyl-1,3,3-trimethyl-3H-indole tetrafluoroborate, which retains its metrological characteristics in acidic and strongly acidic environments and exhibits selectivity up to F-(= -4. 0), was employed as a sensor.

The sensor allowed for the study of [BF4]ˉ - complex formation under different reaction conditions by recording kinetic curves in EMF-time coordinates. The yield of the analytical form was estimated at different concentrations of acid, fluoride ions, and temperature. The obtained data were used to construct the yield surface of tetrafluoroborate, revealing that the optimal conditions for the formation and stability of tetrafluoroborate at room temperature are a medium of 1 M sulfuric acid and 0. 25 M NH4F. Under these conditions, the yield of [BF4]ˉ reaches 99% within 10 minutes. Although the use of phosphoric acid does not allow for the attainment of an appropriate yield of the analytical form under equilibrium conditions, its low process velocity makes it suitable for kinetic - potentiometric determination of boron. This characteristic was utilized to develop a method for the determination of boron in phosphoric acid using the fixed-time method.

Keywords: tetrafluoroborate ion; potentiometric sensor; kinetic determination of boron.
SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF SELENO(MERCURY)HALOGEN-CONTAINING BENZOTHIAZOLE DERIVATIVES
Authors: Haleha O.V. , Povidaichyk M.V. , Komarovska-Porokhnyavets O.Z. , Onysko M.Yu. , Sukharev S.М.
Published: October 2023

Derivatives of benzothiazole are sufficiently well researched as substrates for obtaining a number of condensed and hybrid polycyclic heterocycles that exhibit various biological activities, namely, they exhibit anticancer, antimicrobial, antioxidant activity, can be used as antidiabetic agents, analgesics, and inhibitors of viral infections. In this work, the possibility of seleno- and mercury-induced cyclization of 2-cinnamylthiobenzothiazole and the prospect of the usage of seleno- and mercury-containing benzothiazole derivatives as bactericidal and fungicidal agents are investigated. It was established that non-regioselective selenium-induced cyclization of 2-cinnamylbenzothiazole occurs during the reaction of 2-cinnamylthiobenzothiazole with the mixture of selenium dioxide and hydrobromic acid in a chloroform medium; reaction leads to the formation of a mixture of selenium-containing regioisomers of 4-phenyl-3-(tribromo-l4-selanyl)-3,4-dihydro-2H-[1,3]thiazino[2,3-b][1,3]benzothiazolium bromide and 4,4-dibromo-3-[bromo(phenyl)methyl]-3,4-dihydro-2H-4l4-[1,4,3]thiaselenazino[2,3-b][1,3]benzothiazolium bromide. On the other hand, a molecular complex is formed in a ratio of 1:1, when mercuriating of 2-cinnamylthiobenzothiazole with mercury chloride,. Experimentally determined fungicidal properties of seleno-, mercury-, and tellurium-containing derivatives of benzothiazole indicate the prospect of their use as bactericidal and antifungal agents

Keywords: 2-cinnamylthiobenzothiazole; thiazino[2,3-b][1,3]benzothiazolium, thiaselenazino[2,3-b][1,3]benzothiazolium, molecular complex, fungicidal activity.
INFLUENCE OF ASSESSMENT METHODS ON INTERMEDIATE RESULTS OF MEDICAL STUDENTS
Authors: Korol N. , Kut M. , Lendel V. , Slivka M. , Onysko M. , Kryvovyaz A. , Rusyn I. , Faryniuk Yu.
Published: October 2023

The conducted research revealed that first-year students of the medical faculty prefer distance learning and the use of multiple-choice testing on an electronic educational platform when studying the course "Bioorganic Chemistry." Meanwhile, traditional classroom sessions without visual aids and open-ended questions showed the lowest performance indicators. However, students mentioned that they most effectively assimilate the educational material during such sessions, while also acknowledging the positive impact of quality visual aids on comprehension. Based on the obtained results, it is recommended to continue developing a question bank and utilizing the electronic educational platform with multiple-choice testing, but with modifications to the tasks and variations in test parameters. The research indicates that students perceive the use of technology and interactive teaching methods positively, which provide a more flexible learning environment and the opportunity for independent study. The research findings can be valuable in curriculum development and improving the quality of the educational process. Furthermore, it is worth considering the possibility of implementing a wider range of interactive teaching methods and utilizing modern technologies that foster active student engagement in the learning process.

Keywords: quality of education; academic success; testing; form of education.
THE POSSIBILITY OF EFFECTIVE USE OF BASIC DYES OF THE "BAZAKRYL" TRADEMARK IN THE DETERMINATION OF ANIONIC SURFACTANTS
Authors: Rusyn V.M.
Published: October 2023

This study shows the prospects of using "Bazacryl" brand dyes in spectrophotometric analysis. On the basis of previous studies, their main spectrophotometric and protolytic characteristics have already been established, which made it possible to find out the optimal conditions for the formation of ionic associates of anionic surfactants with "Bazakrils". The studied dyes are characterized by a sufficiently high color intensity within a wide range of changes in the acidity of the medium, and in terms of these properties, they are not inferior to the majority of known basic dyes used in analytical practice. The kinetic factors of extraction were studied. As a result, the extraction equilibrium is established after 10-30 seconds of mixing the phases and practically does not depend on the used extractant, but 1-3 min. centrifugation is sufficient for complete phase separation. The optical density of the extracts of the formed IA does not change within 2 hours. It was established that such dyes show the ability to form IA from APAR and can serve as analytical reagents for their determination. The optimal conditions for the formation and extraction of IA APAR with new dyes have been established. A new, simple and rapid method for determining APAR in various samples of wastewater and natural waters, detergents, etc. is proposed.

Keywords: dyes; spectrophotometry; ionic associate; protolytic properties; spectrophotometric properties.
Comparative Analysis of LPC and MFCC for Male Speaker Recognition in Text-Independent Context
Authors: Zailan Mohamad Khairul Najmi , Mohd Ali Yusnita , Noorsal Emilia , Abdullah Mohd Hanapiah , Saad Zuraidi , Mat Leh Adni
Published: October 2023

peech is the utmost communication medium for human beings which conveys rich and valuable information such as accent, gender, emotion and unique identity. Therefore, automatic speaker recognition can be developed based on unique characteristics of one’s speech and utilized for applications such as voice dialing, online banking, and telephone shopping to verify the identity of its users. However, retrieving salient features which are capable of identifying speakers is a challenging problem in speech recognition systems since speech contains abundant information. In this study, a total of 438 audio data obtained from speakers uttering speech in text-independent context is proposed using speech data elicited from three Malay male speakers. The performance of two popularly used feature extraction techniques namely, linear prediction coefficients (LPC) and Mel-frequency cepstral coefficients (MFCC) were compared using discriminant analysis model. Although both features yielded impressive outcomes, the MFCC features surpassed that of LPC by achieving a higher accuracy rate of 99.09%, which was 4.34% higher than the latter.
Una caja de pandora por el río
Authors: Sturla Natalio
Published: October 2023

Reseña a Marcia Müller y Juan Pedro Zubieta (2023). Acordeón con alma de Chamamé. Ediciones Moglia, 302 páginas.

El acordeón diatónico, fundamental en la conformación del género chamamé, presenta escasas investigaciones y publicaciones que den cuenta de cómo y por qué llegó a ser reconocido como el portador del sonido de la región del Litoral. Marcia Müller y Juan Pedro Zubieta plantean en este libro un recorrido histórico desde su origen, el proceso de «acordeonización» de los ritmos litoraleños, y la manera en que las modificaciones en la mecánica de su funcionamiento incidieron en la configuración musical de las obras.
Performance studies on hybrid nano-metal matrix composites for wear and surface quality
Authors: Kannan P.R. , Thanigaivelan R , Thiraviam R , Pradeep Kumar K
Published: October 2023

Aluminium-based hybrid nano-metal matrix composites are right materials, finding application in the aerospace and automotive industry. The present research focused on the effects of sliding load, sliding velocity, and temperature on wear behaviour of a novel hybrid metal matrix nano-composite .Stir-squeeze casting setup is used to produce the composites. The base metal is scrap aluminium alloy wheel (SAAW) reinforced with 1, 2, wt.% and 5.5, 7 wt.% of micro-sized alumina (Al2O3)m and nano-sized alumina (Al2O3)n particle respectively. An orthogonal array L9 (OA) has been used for designing the experiments. Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) is applied to find the optimal condition for Coefficient of Friction(COF),wear, surface roughness. Analysis of Variance (ANOVA) results show that the reinforcement contributes 19.40% and most influencing factor is sliding load with 62.33%. The samples tested were examined and analyzed using a Field Emission Scanning Electron Microscope (FESEM) and an energy-dispersive X-ray spectrometry (EDX). Additionally, a profilometer was used to measure the surface roughness of the worn-out specimen.
Domestic Investment and Economic Growth Nexus: Does Absorptive Capacity Matter in The African Countries?
Authors: Ogunyomi-Oluyomi Oluwatosin Olatunji , George Emmanuel Oladapo , Maku Olukayode Emmanuel , Adelowokan Oluwaseyi A.
Published: October 2023

This study empirically examined the role of the country’s absorptive capacity on the impact of domestic investment on economic growth in the selected five African countries over the study period of 1970 to 2019. In specific, the study examined the impact of domestic investment on economic growth from two models, without the country’s absorptive capacity and with the country’s absorptive capacity. Further, a robust linear ordinary least squares (OLS) methodology including static panel OLS and panel cointegration estimators was employed. The study found that only changes in financial development and infrastructures positively cause changes in the domestic investment-economic growth nexus in the short run while in the long run, trade openness enhances the positive impact of domestic investment on economic growth in African countries. In addition, the study found that domestic investment retards economic growth without the country’s absorptive capacity in the short run and long run respectively in African countries. Therefore, the study recommended that policymakers should invest heavily in infrastructure and financial development systems as well as encourages trade openness for a stable domestic investment-economic growth nexus in African countries.
The (in)visibility of Torajan language: A study on linguistic landscape in South Sulawesi, Indonesia
Authors: Halim Suwarni Wijaya , Sukamto Katharina Endriati
Published: October 2023

The Torajan language is the heritage language of the Torajan people, which reflects the local wisdom and identity of the people. Yet, with the popularity of Indonesian and English as the lingua franca, there is a concern for the domain, status, and vitality of the Torajan language within the society. Therefore, this study aims to study the visibility of the language. This study offers a novel approach by looking at the use of the Torajan language in the linguistic landscape in two regencies, Tana Toraja and Toraja Utara, to determine its position in the community. The research utilized a case study design, and the source of data is linguistic landscapes found along Jalan Poros Rantepao–Makale which connects the two regencies. The images of linguistic landscapes were collected by viewing the Google Street View facility provided by Google Maps, and the languages in those linguistic landscapes were noted. The findings show that Indonesian and English dominate the linguistic landscape in Tana Toraja and Toraja Utara, and the Torajan language is minimally represented in the public space of these two regencies. The lack of visibility of the language in the public space might be caused by the restricted use of the language for familial talks at home and oral indigenous rituals. However, the Torajan language needs to be used more frequently in public spaces since it could promote a positive attitude of the people, which would in turn solidify the position of the language in the society.
The possibilities of implementing pragmatic instruction with Mental Grounding Techniques in EFL college students’ context
Authors: Al-Obaydi Liqaa Habeb , Pikhart Marcel , Namaziandost Ehsan
Published: October 2023

The use of psychological techniques to deal with language problems is a well-known strategy in the process of teaching foreign languages as learners can sometimes suffer from anxiety and stress, so it is essential to help students overcome the psychological barriers they face to cope with the process of learning. This study attempts to deal with pragmatic problems by using a mix of mental grounding techniques and pragmatic activities (awareness-raising activities). The sample of the study comprised participants from Iraq and the Czech Republic. They were first-year college students. The researchers depended on learning zones to determine the suitable time for the experiment (fear zone). The researchers applied self-report surveys in addition to interviews to determine the students with pragmatic problems. Then, at the end of the experiment, the participants were interviewed again to evaluate the experiment in addition to the same self-report survey. Results showed that the two samples responded positively to the mix of techniques used. Moreover, the division of learning zones seems ideal to be dependent in the present study as it specifies the time of challenge the students experienced. The results also clarified that the mix of the two types of activities (pragmatic and grounding activities) demonstrates a kind of remedy that could enhance students’ level of pragmatics. In the end, no sharp differences were mentioned in the two contexts of the study (Iraq and the Czech Republic); both gained approximate positive results.
Exploring the experiential meanings of the COVID-19 survivors’ expressions
Authors: Zulprianto Zulprianto , Fanany Rebecca
Published: October 2023

Language transforms experience into meaning. Grammar, which can be metaphorically construed as its powerhouse, enables such a transformation. One of the linguistic approaches utilised to understand the linkage between the semiotic and material world is Systemic Functional Linguistics (SFL). SFL argues that the experiential meaning of a clause can be investigated through its transitivity structures in terms of Process, Participant, and Circumstance. This study carries out a transitivity analysis of expressions shared by COVID-19 survivors from different parts of the world in an attempt to learn how they construe their experience of illness. The data were obtained from online newspapers published in different countries and conveniently developed into a corpus from which COVID-19 survivors’ expressions were extracted. All texts under examination were reported in English regardless of their original language. This study examines the survivors’ direct expressions through their transitivity structures using the SFL framework. The results show that these individuals frequently used relational and abstract material Processes in describing their illness, meaning that they tended to express their physical or psychological experiences metaphorically as beings and actions. This suggests that they abstractly construe their experiences with this viral disease. Constructing experiences abstractly is likely driven by the need to distance themselves from experience as a way of coping with an event perceived as potentially life-threatening.
Pronunciation of English velar nasal (angma) by undergraduate students in Pakistani universities
Authors: Mahmood Afia , Irfan Humaira , Fares Nurah Saleh , Yasmeen Shafqat
Published: October 2023

Pakistani English (PakE) is an emerging variety of English that is in the process of developing its own norms and standards. Besides, distinguishing lexical and syntactic structures, it also has unique phonological features (Baumgardner, 1993; Hassan, 2004; Rahman 1991). Many Pakistani linguists have discussed unique consonantal and vocalic features of Pakistani English (PakE). However, there has not been any significant research conducted on the pronunciation of English velar nasal or angma /ŋ/ by Pakistani English speakers. This study analyses the pronunciation of English velar nasal by Pakistani English speakers. The sample was selected from 20 undergraduate students of the Department of English studying in the first semester of a large-scale public sector university located in Lahore, Punjab, Pakistan. A number of 20 English lexical items were selected and were divided into three categories according to the distribution of angma in the English language. The items were presented to the participants in diagnostic sentences. PRAAT, the speech and phonetics analysis software, was used to analyse the data. The findings revealed that Pakistani English speakers pronounce angma inaccurately in the medial position and insert velar plosive /ɡ/ in the poly-morphemic words. However, in the final position, angma is pronounced correctly by most Pakistani English speakers. The findings highlight that Pakistani English speakers are not concerned about the morpheme boundary and pronounce angma without /ŋɡ/ coalescence. Thus, it is found that Pakistani English speakers have distinguished pronunciation. The study recommends more research on Pakistani English pronunciation as well.
Transformations of the Landscape and Territory of Chapada Diamantina Through the Insertion of the Central Pivot as Irrigation
Authors: Lima Espedito Maia , Rocha Altemar Amaral , Figueredo Dhione Andrade , Meira Vandique Martiniano Campos , Veiga Adriana Cruz
Published: October 2023

Objective: This research analyzes the changes in landscapes and territory in Chapada Diamantina, with emphasis on the municipalities of Ibicoara-BA and Mucugê-BA, caused by the implementation of central pivot irrigation systems and the appropriation of these spaces by agribusiness.
 
Theoretical framework: This study was conducted based on theoretical reflections on environmental issues, the relationship between society and nature and theories on space and territory. Water use issues, granting policies and the procedures that bodies in the environmental sector used to monitor access to water and its multiple uses.
 
Method: It is based on the use of data collection with thematic mapping, use of satellite images and theoretical discussion. The data were obtained from the Brazilian Institute of Geography and Statistics (IBGE), the National Water Agency (ANA), the Brazilian Agricultural Company - Embrapa and the Institute of the Environment and Water Resources (INEMA).
 
Results and conclusion: The results demonstrate strong growth in agribusiness in Chapada Diamantina and a high impact on environmental resources, especially due to the removal of vegetation cover from the surfaces of Gerais and an increase in demand for water.
 
Implications of the research: The environmental and territorial approach of the research questions the development model implemented in the region, pointing out intra-regional inequalities, and the environmental problems arising from the massive land and water in the area with high environmental fragility.
 
Originality/value: This research has social, economic, scientific and environmental value with the data analyzed and the originality of the discussions presented.
Идея транснационального университета
Authors: Деменчук П.Ю.
Published: October 2023

Монография раскрывает идею транснационального университета в контексте современной глобализации образования и общества знаний. Транснациональный университет рассматривается как один из институтов, выступающих проводником глобального культурного, политического и экономического влияния. Автором отстаивается гипотеза о реализации процесса глобализации в последовательности институт–символ–экзистенциал.
AORTOPULMONARY WINDOW: RARE CARDIOPATHY - CASE REPORT
Authors: Souza Gessianni , Delgado Caio , Melo Rafaela , Almeida Yngra , Santos Luziene , Andrade Taiana
Published: October 2023

Aortopulmonary window is a congenital heart disease of low prevalence that results from anormalities in the septation of the commom arterial trunk. It is caracterized as a communication between the aorta and main pulmonary artery or its branches. This malformation resembles a large persistent ductus arteriosus. Clinical symptoms are related to pulmonary blood flow and the septal defect size. The aim of this paper is to report a case, inclunding his clinical presentation, the diagnostic work up, as well as the initial care at the emergency unit.
CONGENITAL NEPHROTIC SYNDROME SECONDARY TO CONGENITAL INFECTION: A CASE REPORT
Authors: Santos Camila , Faria Gabriella , Duarte Marianne , Camara Filipe , Lima Tereza
Published: October 2023

Congenital nephrotic syndrome (CNS) is a rare glomerular disease characterized by massive proteinuria, hypoproteinemia, and generalized edema that manifests in the first 3 months of life. This report describes the case of a patient with congenital nephrotic syndrome secondary to congenital infection in a pediatric patient. The article aims to sensitize pediatricians to the pathology and its etiologies, considering that clinical suspicion allows for better therapeutic management of affected patients and the prevention of potential sequelae.