bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGEMBANGAN VIDEO PEMBELAJARAN LINGKUNGAN UNTUK KEMAMPUAN SOSIAL EMOSIONAL ANAK USIA DINI
Authors: Meo Ngodhu Elisabeth , Meka Marsianus , Oka Gde Putu Arya
Published: February 2024

Penelitian ini bertujuan untuk (1) menjelaskan rancangan atau desain media  video pembelajaran lingkungan untuk kemampuan sosial emosional pada anak usia dini(2) Untuk mengetahui tingkat kelayakan dari media video pembelajaran lingkungan keluarga pada Anak Usia 5-6 Tahun Di PAUD Terpadu Citra Bakti. Penelitian ini dilakukan di PAUD Terpadu Citra Bakti, Kabupaten Ngada Provinsi Nusa Tenggara Timur. Media ini dikembangkan dengan model ADDIE. yaitu: (1) analyze, (2) design, (3) development, (4) implementation, dan (5) evaluation. Teknik pengumpulan data yang digunakan dalam penelitian ini meliputi: (a)  angket, (b) obsevasi, (c) wawancara atau diskusi dan (d) dokumentasi. Data yang dikumpulkan dalam penelitian berupa kualitatif dan kuantitatif. Ada beberapa prosedur pengembangan melalui dari beberapa tahap yaitu: 1) tahap analisis 2)  analisis kurikulum  3)  analisis kebutuhan siswa  4)  analisis kompetensi  5)  tahap desain  6) perancangan desain produk 7) penyusunan aturan cara penggunaan  8) menyusun instrumen penilaian produk  9) tahap pengembangan  10)  pembuatan produk   11)   validasi ahli  12)   revisi 1  13)  tahap implementasi  14)  uji coba perorangan dan kelompok kecil 15)  revisi II  16)   produk 17)   tahap evaluasi.  Berdasarkan hasil uji coba ahli dan anak usia dini sebagai pengguna produk adalah sebagai berikut: (1) uji coba ahli media ada pada ketegori valid, (2) uji coba ahli materi ada pada kategori valid,  (3) uji coba ahli desain ada pada kategori valid,  (4) uji coba kelompok kecil ada pada   kategori sangat valid, (5) uji coba perorangan ada pada kategori sangat valid. Dengan demikian,hasil uji coba media video pembelajaran untuk AUD oleh ahli dan anak usia dini sebagai pengguna produk dinyatakan layak digunakan dalam proses pembelajaran yang di kembangkan untuk kemampuan sosial emosional pada anak usia dini
PENERAPAN APLIKASI TALKBACK DALAM PELAKSANAAN PEMBELAJARAN SISWA TUNANETRA KELAS XI DI SLB NEGERI BRANJANGAN JEMBER
Authors: Hermawan Agus , Yaum Lailil Aflahkul , Megaswarie Rosika Novia
Published: February 2024

Penelitian ini bertujuan untuk mendeskripsikan penerapan aplikasi pembaca layar Talkback dalam pelaksanaan pembelajaran siswa tunanetra kelas XI di SLB Negeri Branjangan Jember serta mengkaji kendala dan solusi penyelesaian terhadap penerapan aplikasi pembaca layar Talkback dalam pelaksanaan pembelajaran siswa tunanetra kelas XI di SLB Negeri Branjangan Jember. Lokasi yang digunakan sebagai tempat penelitian adalah SLB Negeri Branjangan Jember, di jalan Branjangan 1, Semanggu, bintoro, Patrang dengan menggunakan pendekatan Deskriptif Kualitatif. Analisis data menggunakan 3 tahap yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Subjek dalam penelitian ini adalah 3 siswa tunanetra. Hasil penelitian ini adalah Pada penerapan aplikasi pembaca layar Talkback dalam pelaksanaan pembelajaran di kelas sudah berlangsung sejak 2018. Pada pelaksanaanya sekolah, guru, dan khususnya siswa tunanetra mendapatkan banyak dampak positif seperti membantu dalam kegiatan belajar dan pembelajaran. Namun pembelajaran Massage tersebut masih mengalami kendala-kendala yang bersumber dari lembaga sekolah, guru dan anak-anak sendiri. Kendala yang lain juga dikarenakan belum memadainya ketersediaan dana. Dari kendala-kendala tersebut terdapat solusi yang sudah dijalankan dan ada pula yang masih dalam tahap perencanaan.
STUDI ANAK BERKEBUTUHAN KHUSUS: IMPLEMENTASI MATAKULIAH PENDIDIKAN ABK DALAM PEMBELAJARAN DI SEKOLAH DASAR
Authors: Owa Yosefa Kafasin , Kero Maria Alfonsa , Itu Maria Alexandria , Ledu Maria Goreti Gowa
Published: February 2024

Hakikat pendidikan merupakan suatu hal penting yang sangat dibutuhkan oleh anak berkebutuhan khusus. Tujuan penelitian ini adalah untuk mendeskripsikan literatur tentang Hakikat anak berkebutuhan khusus dan penerapannya dalam pendidikan di sekolah dasar. Metode penelitian ini menggunakan metode penelitian kualitatif dengan pendekatan kajian literatur. Pengumpulan data dilakukan dengan cara menelusuri artikel-artikel dari jurnal elektronik yaitu melalui google cendekia yang dapat memperkuat hasil analisis. Teknik analisis data dalam penelitian ini meliputi tiga tahapan yaitu organizer, synthesize, dan identity. Hasil penelitian menunjukan bahwa Setiap peserta didik berhak memperoleh pelayanan dan kemajuan Pendidikan yang signifikan, terlepas dari mereka yang normal dan mereka yang memiliki keterbatasan fisisk maupun mental. Sekolah luar biasa yang didirikan untuk anak berkebutuhan khusus memberikan pembelajaran tentang berbagai hal seperti layaknya anak normal walaupun jauh dibawah orang normal, yang bertujuan agar kelak mereka tidak bergantung pada orang lain.
STRATEGI DAKWAH PADA PROGRAM SEKOLAH INKLUSI DI BOJONGWETAN DALAM UPAYA PEMBERDAYAAN KELOMPOK MARGINAL
Authors: Mazaya Amidda , Darmaningrum Khaerunnisa Tri
Published: February 2024

Dalam berdakwah tidak asal menyampaikan pesan yang akan disampaikan namun harus ditata seperti dalam pengucapan, materi, memilih sasaran mad’u yang tepat juga itu semua harus memiliki strategi agar dakwah yang disampaikan bisa diterima dengan baik oleh Mad’u nya. Oleh karena itu dalam berdakwah pun harus ada strateginya, adapun Strategi dakwah merupakan proses menentukan Upaya guna menghadapi sasaran dakwah dalam situasi dan kondisi tertentu agar mencapai tujuan dakwah dengan maksimal. Dalam menentukan strategi untuk berdakwah tidak memihak kepada siapapun, asalkan dakwah yang akan disampaikan bisa diterima disemua kalangan. Tujuan berdakwah juga berupaya untuk memberdayakan suatu proses perencanaan perubahan sosial yang bertindakan pada nilai-nilai Islam dengan bersifat netral. Seperti dalam kelompok marginal juga perlu dilakukan dakwah pemberdayaan karena masyarakat yang memiliki keterbatasan akses terhadap berbagi bidang, seperti status sosial yang paling rendah, kelompok ini sangat membutuhkan pendekatan dari segi manapun, dengan status sosial rendah kelompok marginal membutuhkan dorongan agar bisa merubah nasibnya. Bukan hanya bantuan materi saja namun bantuan seperti pemberdayaan dari semua aspek, pendekatan keagamaan, sikap saling menghargai itulah yang sangat dibutuhkan dari mereka. Dakwah pemberdayaan sendiri bertujuan agar perubahan sosial yang ingin dicapai lebih baik lagi sehingga dapat mengubah dan mengembangkan sikap dan pola berfikir agar mencapai kesejahteraan dan kebahagiaan masyarakat atau sekelompok sasaran guna meningkatkan kesadaran untuk berperilaku yang lebih baik. Kelompok marginal bisa dikategorikan sebagai kelompok sosial golongan kalangan bawah seperti pengemis, pemulung, bahkan orang yang memiliki kebutuhan khusus. Artikel ini akan membahas mengenai Strategi Dakwah Pada
ANALISA KENDALA GURU DALAM MENGHADAPI ANAK BERKEBUTUHAN KHUSUS ATTENTION DEFICIT HYPERACTIVITY DISORDER DI SEKOLAH DASAR
Authors: Ningrum Shinta Permata , Rusmawan
Published: February 2024

Guru kelas di SD Inklusi di Yogyakarta menghadapi berbagai kendala dalam memberikan pelayanan kepada siswa dengan ADHD. Salah satu tantangan yang mereka hadapi adalah Guru pendamping khusus (GPK) yang dapat memberikan bantuan. Tanggung jawab guru untuk siswa dengan ADHD melampaui ruang kelas. Penelitian ini bertujuan untuk menjelaskan kesulitan yang dihadapi oleh guru sekolah dasar di Yogyakarta yang bertugas mendampingi siswa dengan gangguan attention deficit hyperactivity (ADHD). Pendekatan kualitatif dan deskriptif digunakan dalam penelitian ini. Data dikumpulkan melalui observasi dan wawancara dengan guru kelas sebagai objek penelitian. Informasi dianalisis secara kualitatif dengan mendeskripsikan hasil wawancara dan observasi. Hasilnya menunjukkan bahwa pendidik yang menangani siswa yang memiliki ADHD menghadapi sejumlah tantangan dalam memfasilitasi pendidikan mereka. Masalah pertama adalah kurangnya guru GPK yang tersedia untuk membantu anak-anak yang menderita ADHD. Ini menempatkan tuntutan tambahan pada guru kelas yang sudah sibuk. Tantangan kedua adalah perilaku siswa yang sulit diatur dan sulit diatur. Kendala ketiga adalah terkait dengan Rencana Pelaksanaan Pembelajaran (RPP). Guru kelas seringkali menghadapi kesulitan dalam membuat RPP khusus untuk siswa ADHD, karena mereka menganggap proses pembelajaran siswa ADHD sama dengan siswa normal. Kendala keempat adalah terkait dengan media pembelajaran. Guru kelas seringkali menghadapi kendala dalam menciptakan media pembelajaran yang sesuai untuk membantu siswa ADHD memahami materi pembelajaran. Kendala terakhir adalah terkait dengan sarana dan prasarana pendidikan. Guru kelas menghadapi tantangan dalam menyediakan tempat khusus untuk melayani dan berkonsultasi dengan siswa ADHD.
PERILAKU KOMUNIKASI ANAK DOWN SYNDROME DALAM INTERAKSI SOSIAL DI SEKOLAH INKLUSI
Authors: Ghazia Mega Putri Naba , Rusmawan
Published: February 2024

Tujuan dari penelitian ini berguna untuk mengetahui perilaku komunikasi anak down syndrome dalam interaksi sosial di salah satu sekolah inklusi di Yogyakarta. Penelitian ini menggunakan metode  penelitian kualitatif dengan pendekatan studi kasus jenis single case. Objek dalam penelitian ini adalah perilaku komunikasi anak down syndrome dalam interaksi sosial. Subjek penelitian ini adalah satu siswi down syndrome. Data dikumpulkan melalui kegiatan observasi dan wawancara. Pemeriksaan kebenaran data dilaksanakan dengan uji kredibilitas berupa uji triangulasi, uji transferabilitas, uji dependabilitas, dan uji konfirmabilitas. Analisis data menggunakan analisis model Spradley dengan melalui tahapan analisis domain, analisis taksonomi, analisis komponensial, dan analisis tema. Hasil penelitian menunjukkan bahwa anak down syndrome belum cukup baik dalam perilaku komunikasi interaksi sosial di lingkungan sekolah. Peran guru di sekolah inklusi dapat membantu perkembangan perilaku komunikasi anak yang dapat dikembangkan melalui aktivitas yang berfokus pada hal yang memikat ketertarikannya dan melibatkan kegiatan motorik.
Kinetic and Equilibrium Modelling of Lead, Zinc and Copper Ions Sorption from Aqueous Solution Using Charcoal Fines
Authors: P. Mungwari Chakanaka , Chipangura Wilfred , B.Ndlovu  , N.Madziwa Tapiwa , K. Simende Clemence , Nyenyayi Knowledge , C. Chewu Charles
Published: February 2024

The potential of chemically modified charcoal fines UCF (unmodified charcoal fine) and MCF (modified charcoal fines) as low cost adsorbents for the removal of Pb2+, Cu2+ and Zn2+ ions from aqueous solution was studied. MCF was prepared by chemical modification of UCF with HNO3 and KOH followed by pyrolysis. The factors influenced the effectiveness of biosorption process were pH, contact time, initial metal concentration, temperature and adsorbent dosage. FT–IR spectra confirmed the existence and interaction of the adsorbents with the effluent pollutants. MCF exhibited optimum pH, temperature, contact time, initial metal ion concentration and biosorbent dosage values of 5, 35 0C, 90 minutes, 15 mg/L and 2 g, respectively. UCF exhibited optimum pH, temperature, contact time, initial metal ion concentration and biosorbent dosage values of 6, 35 0C, 100 minutes, 20 mg/L and 2.5 g, respectively. The adsorption isotherm modelling using both adsorbents showed that the equilibrium data conformed more to Langmuir than the Freundlich model. Kinetic studies showed that the adsorption processes followed a pseudo-second order kinetic model. Thermodynamic studies confirmed the spontaneity and feasibility of the adsorption process. The results showed that both adsorbent have the potential to be applied as alternative low cost biosorbent.
Comparison of Deep Partial Thickness Burns Wound Healing with Resveratrol Gel and Paraffin Gauze in Wistar Rats
Authors: Magdalena Paulina , Adnyana I. Made Suka , Sanjaya I. Gusti Putu Hendra , Hamid Agus Roy Rusly Hariantana , Winarti Ni Wayan
Published: February 2024

BACKGROUND: Various modalities of wound care in burn cases are offered, but there is no standard algorithm used. Paraffin gauze dressing, as one of the commonly used dressings, is considered to have many shortcomings. Resveratrol, a stilbenoid derived from plants, is reported to have a role in wound healing process; it has the potential to be one of the modalities for treating burns. This study aims to strengthen studies on the role of resveratrol in wound healing process, especially in burns compared with paraffin gauze.
AIM: This study conducted to prove that resveratrol gel more superior than paraffin gauze in deep partial thickness burns healing process.
METHODS: This research is a laboratory experimental study with a post-test only design, simple randomized, and single blind. A sample of 32 Wistar rats with deep partial thickness burns was divided into four control groups and four treatment groups. Control groups were treated using paraffin gauze. Treatment groups were treated using resveratrol gel. Group 1 of each group was assessed for epithelialization. Angiogenesis, fibroblasts, and collagen deposition was assessed on day 5 in group 2, day 14 in group 3, and day 21 in group 4.
RESULTS: Angiogenesis significantly higher in the treatment group than the control group on day 5 and 14 (p = 0.047 and 0.032) but not significantly different on day 21 (p = 0.107). The number of fibroblasts in the treatment group was significantly higher on day 5, 14, and 21 (p = 0.004; 0.038; and 0.005). Collagen deposition not significantly different on day 5 (p = 0.342) but significantly higher on day 14 and 21 (p = 0.048 and 0.002). The epithelialization process occurred earlier in the treatment group than in the control group (p = 0.001).
CONCLUSION: Topical administration of resveratrol gel accelerates the epithelialization process, which increases the number of angiogenesis, fibroblasts, and collagen deposition in deep partial thickness burns compared to paraffin gauze.
Eupholidoptera kekrops sp. nov. (Orthoptera, Tettigoniidae), new bush-cricket from Greece
Authors: Alexiou Sotiris
Published: February 2024

Eupholidoptera kekropssp. nov. belonging to the E. prasina group, is described from mainland Greece. The new species is the first known member of this group from mainland Greece and mainland Europe. Differentiating morphological characteristics, mainly of the subgenital plate and titilator, are presented.
Conceptual basis for studying the fungal biodiversity in organogenic soils in the area of the Bulgarian Antarctic Base ‘St. Kliment Ohridski’ on Livingston Island
Authors: Georgieva Margarita , Zhelev Chavdar , Zhiyanski Miglena , Georgiev Georgi , Hristova Mihaela , Bozhilova Mariam , Yaneva Rositsa , Koychev Blagoy
Published: February 2024

In 2023, a scientific project for studying the fungal biodiversity in organogenic soils in the area of the Bulgarian Antarctic Base ‘St. Kliment Ohridski’ on Livingston Island was funded by the National Center for the Polar Studies at Sofia University ‘St. Kliment Ohridski’, implemented under the National Program for Polar Research ‘From Pole to Pole’, adopted by the Ministry of Education and Science. 

In the period February-March 2023, a total of 126 soil samples were collected for analysis. Soil samples were carried out in the upper 0-5 cm soil layer. In places with deeper soil profiles, samples were collected from the deeper layer >5 cm. All samples were stored in sterile polyethylene bags in a freezer at minus 28°C on the Bulgarian ship ‘St. St. Cyril and Methodius’, which arrived in Bulgaria on 2nd May 2023.

The present study aims to present the conceptual basis for the study of structure, composition, and bioecological features of fungal species occurring in Antarctic organogenic soils from Livingston Island, to investigate the representatives of separate taxonomic groups of invertebrate organisms interacting with the fungal species in the soil, and to establish the relationships with the soil characteristics in the studied sites. Studies of the biological and ecological features of representatives of the mycota in Antarctic organogenic soils, their physiological and biochemical behavior, and interaction with invertebrate organisms, are essential for a better understanding of the biological processes occurring in them, and the implementation of this project will have substantial contribution to these issues.
Determining the lengths of miles and numerical map scales for Volume VII of the graphic collection Iconotheca Valvasoriana
Authors: Viličić Marina , Domazet Emilia , Triplat Horvat Martina
Published: February 2024

This article presents the procedure for determining numerical scales based on the graphic scales drawn to process the graphic material in Volume VII of the Valvasor collection. To calculate the numerical scales, the miles drawn on the maps and their lengths in relation to one degree of the meridian were studied. A total of 22 different miles were drawn on the maps studied, of which the German mile was the most common. After calculating the numerical scales, it was found that the largest scale of the maps examined was 1:220,000 and the smallest was 1:11,200,000.
Mobile Application to Improve the Follow-up and Control Process in Patients with Tuberculosis
Authors: Cabanillas-Carbonell Michael
Published: February 2024

Tuberculosis is a severe and life-threatening illness that affects numerous individuals worldwide every day. The key objective of this study was to create a system that could enhance the monitoring and management of tuberculosis patients. To achieve this goal, the Mobile D methodology was utilized because of its effectiveness in project management. This methodology emphasizes test-driven development, continuous integration, and optimization to enhance software processes. The outcome of this research was a prototype of a mobile application specifically designed for individuals with tuberculosis. Professionals and people affected by the disease assessed the quality of the prototype. They evaluated its effectiveness, user-friendliness, design, and functionality and gave ratings of 4.77 and 4.69 on a Likert scale, respectively. These figures indicate that the prototype meets high-quality criteria. In conclusion, this research successfully created an efficient prototype that enhances the monitoring and control of tuberculosis patients. The prototype includes features such as real-time consultations for immediate interaction between physicians and patients, clinical history visualization, and medication reminders, all of which improve the user’s experience.
Autonomous Agriculture
Authors: Daniel Lawrence I. , Agnishwar J. , Vijayakumar R.
Published: February 2024

The usage of agricultural drones has completely changed how farmers manage their crops, providing a number of benefits over more conventional farming practices. Drones are mostly used in agriculture for crop health and growth monitoring, irrigation and soil analysis, and field studies. The capacity of agricultural drones to take high-resolution images of crops and analyse the health and development patterns of plants in great detail is one of its main advantages. Drones are using spectral sensors at various wavelengths and provide information on plant stress, nutritional deficits, soil health, and nutrient and other elements that may have an impact on agricultural productivity. Agricultural drones can easily link to numerous sensors, equipment, and data sources in the field via IoT technology. In order to provide insightful conclusions, artificial intelligence may find patterns and correlations in the data. Machine learning is used to train models that can recognise and classify various objects and conditions captured by sensors.
Sustainable Development Using IoT and AI Techniques for Water Utilization in Agriculture
Authors: Boopathi Sampath
Published: February 2024

Water scarcity and poor quality are major challenges in agriculture, affecting crop growth and food security. IoT and AI techniques are being explored for sustainable development, including water management, precision irrigation, and data analytics. IoT sensors collect real-time data, while AI algorithms predict availability and optimize irrigation schedules. Precision irrigation improves water use efficiency and productivity by utilizing data analytics and clustering algorithms. IoT and AI in agriculture offer economic benefits like increased crop yields, water savings, and sustainable practices. However, initial investment costs, social acceptance, and policy considerations hinder widespread adoption. Future directions should focus on scaling, collaboration, investment, customizable solutions, farmer-to-farmer knowledge transfer, and research funding. Addressing data privacy, security, and connectivity concerns is crucial for trust and confidence among stakeholders.
Decoding Disease
Authors: Pokkuluri Kiran Sree , Usha Devi N  , Khang Alex
Published: February 2024

Generative adversarial networks (GANs) are a cutting-edge technique in drug development that provides a fresh method for optimising and designing molecules. Under this paradigm, GANs transform the conventional drug development pipeline by learning from existing datasets to produce molecular structures with desired features. This work emphasises how artificial intelligence might transform and accelerate the discovery of novel therapeutic compounds and create data-driven drugs. The use of GANs in drug discovery is examined in this chapter, with a focus on their contributions to de novo drug design, property prediction, and molecular generation. GANs speed up the exploration of chemical space and make it easier to find promising therapeutic candidates by enabling the construction of diverse and chemically viable molecular structures. The chapter goes into further detail about the assessment criteria that are essential for determining the caliber, variety, and usefulness of molecules generated by GANs.
Medical Robotics and AI-Assisted Diagnostics Challenges for Smart Sustainable Healthcare
Authors: Shafik Wasswa , Tufail Ali , Liyanage Chandratilak De Silva , Apong Rosyzie Anna Awg Haji Mohd
Published: February 2024

The healthcare industry is undergoing a momentous transformation with the advent of artificial intelligence (AI) and the internet of medical things (IoMT), as these technologies are significant in managing patient data, simple medical surgery, and medical personnel. This development has shown the potential to mitigate medical shortages, health issues, and global disasters. Nevertheless, the dynamic characteristics of the system and its vulnerability to intrusions give rise to apprehensions regarding the possible compromise of patient data, endangerment of life, and reputational harm. This study examines the influence of medical robots and AI-aided diagnostics on smart healthcare sustainability.
“Um grande operario da civilisação futura dos povos da Amazonia”
Authors: Moraes Felipe Tavares de
Published: February 2024

Este artigo analisa a experiência educacional de José Veríssimo no Collegio Americano, entre 1881 e 1890. Procura-se compreender as inovações pedagógicas realizadas por Veríssimo no interior do debate político entre a tradição imperial e a política científica. Em nome da educação moderna, tais inovações provocaram intensos debates sobre a sua legitimidade diante da opinião pública paraense. A partir de uma pesquisa documental e bibliográfica, considero que a experiência educacional de Veríssimo assumiu desdobramentos políticos em função dos seus pressupostos reformistas da Geração 1870. Constata-se que o Collegio Americano representou um espaço de organização da cultura ao defender uma educação moderna, laica, científica na sociedade civil paraense oitocentista.
A Comparative Study of Lubrication Performance for Bs 080M46 Medium Carbon Steel Using Ring Compression Test and Finite Element Simulation
Authors: Poungprasert Raschanan , Siripath Nattarawee , Suranuntchai Surasak
Published: February 2024

This study investigates the impact of lubrication on friction factors during the hot ring compression test of BS 080M46 medium carbon steel. Hot forging processes are crucial in industries due to the strength and durability of forged products, but friction-related issues can arise. Four lubrication conditions are focused: dry, oil to black graphite, water to black graphite, and water to colorless graphite. The ring compression test procedure, including sample dimensions and lubrication application, is explained. By employing predictive calibration curves generated through FEM which monitored height and internal diameter changes during compression. The study successfully aligns FEM simulation results with experimental data, thereby enhancing the accuracy of friction factor estimations and visualizing material behavior under various lubrication conditions. Results indicate that lubrication significantly affects friction factors, with oil to black graphite performing the best, yielding a friction factor of 0.15. A comparison between theoretical and experimental friction factors shows varying agreement levels, with water-to-black graphite, and water-to-colorless graphite respectively demonstrating excellent alignment with 0.990% and 0.971%. This study has practical implications for selecting lubricants in industrial applications, potentially enhancing manufacturing processes and product quality.
Method for the Determination of Rational Constructional and Technological Parameters for the Processes of Powder Materials Forming
Authors: Mikhailov Anatoliy , Shtefan Yevgenii , Mikhailov Oleg , Shtern Mikhail
Published: February 2024

The main theoretical aspects of porous and powder materials technological processing is worked out. The proposed material model is based on: - the four-parameter plasticity theory, which reflect the influence of porosity, resistance and the presence of dilatancy of solid phase deformation regime; - the dissipative potential and the load surface expression, that allow to take account such materials elastic - viscous - plastic properties; - the solid phase energy deformation speed with its subsequent over the representative element volume averaging. The peculiarity of this model is that the equilibrium flow concept elastic-viscous-plastic material is an alternative to its elastic-plastic deformation. The proposed equations are suitable for their effective practical using for digital models creation that based on existent software for the of equilibrium processes of compact materials deformation finite–element analysis. The practical use of the proposed methodologies made it possible to determine: - the regularities of the different modules material layers interaction during stamping of bimetallic blanks with an conical working surface; - the porosity distribution over the product volume at the final stage of radial extrusion of the bushings with an internal flange; - the effect of powder material decompression during reverse extrusion of cylindrical products.
Investigation of the Two-Channel Feedblock Zone in Co-Extrusion of Polymers
Authors: Sharipkhan Nurdaulet , Perveen Asma , Zhang Di Chuan , Wei Dong Ming
Published: February 2024

A process when different materials are combined to produce a product with multiple layers is called co-extrusion. During this process, polymers are melted in separate machines and then extrudate from different die channels. Once these channels converge, the polymers meet and flow through a single channel. The surface where the two fluids face is called “interface”. It is crucial to maintain the interface's uniformity and stability in order to achieve the desired multi-layered structure. Most of the issues in co-extrusion are related to issues that can be classified into two categories such as polymer encapsulation/interfacial distortion and die swell. To solve these problems, designers focus on improving the interface's stability. This paper examines effects of cross-section modification of the two-channel feedblock on the interface location and velocity and pressure distributions of the flow. The ANSYS software was used to simulate the co-extrusion of polymers, LLDPE and HDPE, in two-channel feedblock with rectangular, circular, and straight slot cross-sections. The results show that sharp corners increase the thickness of dead zones, while rounding them decreases the thickness. Additionally, stadium-shaped (or straight-slot) cross-section channels can move the flow with a higher maximum velocity and thinner boundary layer combining the results of rectangular and circular feedblocks.
Investigation on the Effect of Blank Holder Force and Initial Blank Size on the Thinning Problem of the Fuel Tank Part Made from Aluminum Alloy Sheet 5754-O under Deep Drawing Process
Authors: Leelaseat Jidapa , Larpprasoetkun Phiraphong , Sunanta Aekkapon , Nakwattanaset Aeksuwat , Suranuntchai Surasak
Published: February 2024

Deep drawing process is a common sheet metal forming technique in motor vehicle manufacturing. There are three primary defects that could be occur in deep-drawn parts: tearing, wrinkling, and thinning. When the thinning is difficulty detected by visual inspection. As a result, this study aims to address the thinning issue in a fuel tank part made from an aluminum alloy sheet AA5754-O 1.5 mm thick under cold working deep drawing process, while the manufacturer's desired upper limit for thinning is 20%. Two influential parameters viz. blank holder force and initial size of blank, were investigated and optimized by using Finite Element Analysis (FEA) through PAM-STAMP simulation software with the validated material model was based on Hill’s 1948 anisotropic yield criterion with Swift hardening law. The mechanical parameters in the mentioned model were derived from the results of uniaxial tensile tests. In conclusion, both the hydraulic cushion's blank holder pressure and the initial size of the blank were found to influence the thinning of the part, either individually or in combination. Despite optimizing both parameters, they were unable to consistently achieve the desired limit.
Effect of Ownership on the Performance of Licensed Commercial Banks in Sri Lanka
Authors: Ekanayake W. Y. M. M. N. , Wanniarachchige M. K.
Published: February 2024

Despite the availability of many studies on the ownership-performance association, existing literature provides contradictory evidence on the effect of ownership on bank performance. Therefore, this study examines the effect of ownership on the performance of licensed commercial banks in Sri Lanka using annual data from 2012 to 2021. The data was collected from the published annual reports of 18 licensed commercial banks in Sri Lanka. Bank ownership was categorized as state, private, and foreign and included in the model using two dummy variables. Return on equity, net interest margin, and nonperforming loans were used as bank performance indicators. Three random effects panel regression models were used to explore the effect of ownership on the three measures of bank performance while controlling for bank size, loan-to-deposit ratio, income diversification, and management inefficiency. The results suggest that state-owned banks outperform other banks in terms of return on equity. However, their performance in terms of net interest margin and non-performing loans was not significantly different from that of other banks. Therefore, the evidence in this study is inadequate to claim a straightforward association between ownership and bank performance. Nevertheless, this study provides recent evidence of the effect of ownership on bank performance in Sri Lanka. Further, the findings of this study will provide insights for the government, banks, and policymakers in formulating appropriate policies to improve the performance of the banking sector
Factors Associated with the Privacy Disclosure on Social Media by State University Students in Sri Lanka
Authors: Maduragoda C. S. K. , Senarath T. U. S. , Manorathne L. I.
Published: February 2024

The use of social media has become an integral part of the daily life of young people in Sri Lanka. The majority of Sri Lankan youth between the age of 16-25 use social media platforms with Facebook being the most popular one. However, the disclosure of personal information on social media has been associated with various drawbacks, including cyberbullying, identity theft, and physical harm. This research aims to investigate the factors associated with privacy disclosure on social media by state university students in Sri Lanka. The research population consists of undergraduate students from all 17 state universities in Sri Lanka, totalling 327,216 students. The sample is selected using convenience sampling, where 385 undergraduates were selected with a 95% confidence level, and a 5% error rate. The data was collected using a questionnaire and analyzed using statistical procedures such as correlation and multiple regression analysis employing SPSS software. The results of the study reveal that privacy concern was negatively correlated with privacy disclosure, indicating that as privacy concerns increased, students were less likely to disclose personal information on social media. Conversely, perceived benefits were positively correlated with privacy disclosure. These findings suggest that increasing awareness among students of the potential risks associated with sharing personal information online may be an effective measure to prevent privacy disclosure. Furthermore, the study opens avenues for future research to build on its findings and expand understanding of the complex nature of privacy disclosure behavior on social media.
Eosinophilic fasciitis and breast cancer: a case report highlighting recurrence signals
Authors: Maione Vincenzo , Miccio Laura , Rovaris Sara , Zardo Davide , Bighetti Stefano , Bettolini Luca , Naldi Luigi
Published: February 2024

Eosinophilic Fasciitis (EF) poses a diagnostic challenge owing to its uncommon occurrence and aetiology that remains poorly understood. We report a case of a 79-year-old woman with a prolonged history of breast cancer exhibiting EF with concomitant pelvic metastases. This case underscores EF's potential as an indicator signaling a potential resurgence of cancer, highlighting its significance as a red flag of disease recurrence.
Costal erosion: the future of sandy beaches
Authors: Evelpidou Niki , Tzouxanioti Maria , Liaskos Alexandros
Published: February 2024

The coastal zone is a constantly changing area and is one of the most vulnerable one because of climate crisis. In addition to the high concentration of population in coastal areas, there is also high activity in sectors such as tourism, trade and work. Increasing storms and Sea Level Rise (SLR) are likely to cause future flooding in coastal areas, bringing about significant changes in these ecosystems. The threats posed by coastal erosion are very significant, as more than 100 million people live within one meter of mean sea level, meaning that in the coming decades they will have to deal with issues of immigration, finance, social and environmental issues. This paper is an attempt to highlight the magnitude of the problem of coastal erosion, while at the same time a typical case of a coastal zone in the center of the Aegean (Greece) is examined through interpretation of collected data, mapping of the area and geospatial analysis. The results present both its future development based on different climate change scenarios, and based on different scenarios of anthropogenic activities and interventions. At the same time, methods of natural self-protection of the coastal zone against coastal erosion and sea level rise are discussed.
On a mathematical theory of sustainability assessment
Authors: Phillis Yannis A. , Kouikoglou Vassilis S. , Grigoroudis Evangelos , Kanellos Fotis D.
Published: February 2024

We compile a number of postulates to be satisfied by a function that mathematically assesses sustainability of some type: national, urban, energy, etc. These postulates lay the mathematical foundations of a sustainability theory and lead to a simple model based on shifted geometric means combining basic sustainability indicators into an overall index. The model has a number of desirable properties and generalizes the weighted arithmetic and weighted geometric means, which are commonly used aggregation functions in sustainability assessments. Numerical results demonstrate the closeness of the model to other established techniques of sustainability.
A hermeneutics of literary identities
Authors: Kjulavkova Katica
Published: February 2024

In hermeneutics, to understand and then to interpret a narrative text implies identifying its markers of ambiguity—its riddles and enigmas—which are interconnected like a cobweb. In this article, the researcher develops a literary hermeneutic model for interpreting any literary narrative text, based on the conceptual arsenal of literary hermeneutics and narratology. The model is called ‘divinatory’, since it is inspired by Friedrich Schleiermacher’s idea for ‘divinatory hermeneutics’ and Roland Barthes’ ‘hermeneutic code’, and it is applied on a very enigmatic short story by Julio Cortázar. The theoretical premise of the article also argues for the benefits of studying the complex systems of literary identities in literary texts and of re-establishing hermeneutics of literature as a ‘hermeneutics of literary identities’.

Due to its unique ambiguity, Cortázar’s famous short story “Las babas del diablo” has numerous interpretations and too many title translations: after Michelangelo Antonioni’s movie, it is known as “Blow-Up” in English, but also “The Devil’s Drool”, “The Devil’s Cobweb”, “The Cobweb/Kiss of St. Michael’s Summer”, and “The Thread of the Virgin” in other languages. Therefore, its unriddling divinatory interpretation provides an excellent initial interpretative model for any fictional narrative text. By analyzing the hermeneutically encoded aspects of its main narrative factors—the story and its discourse, narrator/s and focalization, narrative time and space, as well as intertextual connections—this interpretation finds that the short story’s search for the identities of its subjects and events is, in fact, a search for the hermeneutic identity of meaning.

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Publication history note: This is the first publication of this essay in its English translation. This translated version has also been significantly updated and modified. Its first introductory theoretical parts are shortened to half their original length. All parts of the model-defining thesis and the structural composition in the main body of the text remain the same, but the application parts are extended, updated, and modified to match and elaborate on the English translation of the analyzed short story, which greatly differs from the previously analyzed Macedonian one. The reference list is updated accordingly. The previous version of the essay has been published only in Macedonian: firstly, in Kjulavkova, K. (2005) Hermenevtika na kniževnite identiteti [A Hermeneutics of Literary Identities]. In Dijalog na interpretacii [Dialogue of Interpretations], K. Kjulavkova, J. Bessier, and Ph. Daros (eds.), Skopje, Ǵurǵa, pp. 61–115; later, for instance, in Kjulavkova, K. (2006) Hermenevtika na identiteti [Hermeneutics of Identi-ties]. Kumanovo, Makedonska rizinica, pp. 61–104.
Comparison between the height of spinal block and the incidence of hypotension among surgical patients
Authors: Abdullahi Mustapha Miko
Published: February 2024

Hypotension is one of the common complications of spinal anesthesia; caused by sympathetic blockade leading to reduced cardiac output. Hypotension may be associated with the height of spinal block and can reduce blood flow to organs thereby leading to cardiovascular collapse which may eventually lead to cardiac arrest if appropriate action is not taken. This study examines the relationship between the height of spinal block and development of hypotension. One hundred (100) ASA I and II patients whose surgeries were below the umbilicus and done under spinal anesthesia were enrolled for the study. Patients that had hypotension were recorded and the heights of block were also recorded. Eleven patients (11) had hypotension (11%) overall. The incidence of hypotension among groups T6, T8 and T10 were 25% (7), 18.75% (3)s and 2.04% (1) respectively with a p-value of 0.5 which was not statistically significant. This study has shown that the incidence of hypotension is directly proportional to the height of spinal block though it is not statistically significant at T6 and below.
Anti-N-methyl-D-aspartate Receptor Encephalitis after Herpes Simplex Virus Encephalitis
Authors: Vaidya John J.
Published: February 2024

Encephalitis due to herpes simplex virus 1 (HSV1) has been described as a potential trigger for the development of anti-N-methyl-D-aspartate receptor (NMDAR) autoimmune encephalitis within few days to months. Here, we report one such case of anti-NMDAR encephalitis which was triggered by preceding HSV encephalitis. The patient had a history of headache and fever of 1–2-week duration, and cerebrospinal fluid and magnetic resonance imaging picture suggestive of HSV encephalitis. After 2 weeks of completion of 14-day course of acyclovir, he had symptoms of altered behavior, headache, and vomiting. The possibility of anti-N-methyl-D-aspartate (NMDA) encephalitis occurring after HSV encephalitis was considered. Serum for anti-NMDA antibody came positive, and he improved with treatment. A high index of suspicion and awareness of such a possibility can help in making the diagnosis and initiate early therapy.
Proyecto Ágora: un cambio de mirada hacia lo dialógico en salud mental
Authors: Minondo-Romero Marina , Cantón-Álvarez Fernando , Sánchez-Sánchez Sergio
Published: February 2024

Resumen: Este artículo muestra el desarrollo del Proyecto Ágora desde sus inicios, una Investigación Acción Participativa (IAP) que persigue la construcción social de conocimiento en torno a la presencia de procesos dialógicos en los contextos sociosanitarios de atención a la salud mental en la Comunidad de Madrid. Se ha contado con una muestra de 91 personas pertenecientes al ámbito de la salud mental, ya sean personas atendidas, familiares o profesionales. Para observar la realidad de estudio, se han tomado como base los principios que enuncian el enfoque de Diálogo Abierto y la Teoría Colaborativa. Los resultados muestran que aún pesa la herencia de una visión moderna de la ciencia, traducida en un modelo biomédico que reduce en gran medida la problemática de la persona a su enfermedad, con gran énfasis en el diagnóstico y tratamientos indicados. A partir del análisis de este fenómeno y sus consecuencias, se pretende impulsar una investigación-acción que sirva para conocer más a fondo esta problemática y aportar ideas respecto a cómo incorporar aspectos colaborativos y dialógicos eficaces y demandados por los participantes en la intervención psiquiátrica y psicosocial.
Geneza świadomej zgody w medycynie krajów anglojęzycznych. Od narkozy do świadomości i od kontraktu do praw
Authors: Strządała Agata
Published: February 2024

Origins of informed consent in medicine in English-speaking countries. From narcosis to consciousness and from contract to rights

The text presents the origins of informed consent in medical practice and research, with a special focus on English-speaking countries. The introduction of anesthesia into medical practice resulted in the emergence of a new group of injured patients who operated in the unconscious state, have no control over medical intervention, and complain that they were subjected to procedures to which they did not agree. The second impulse is experimenting involving humans in the 18th and 19th centuries, some cases gain considerable publicity (e.g. infection with pathogens) and led to high-profi le trials in which the argument of patients’ consent to participate in a non-therapeutic experiment appeared. In the case of therapeutic experiments, the principle of the patient’s benefi t prevails over his autonomy. The third factor is a gradual transition from the individual approach of the doctor to the patient, based on virtue ethics, to understanding the relationship between the doctor and the patient in terms of a contract. Then, the transition from the contract to general rights and the formulation of general patient rights.
Incorporating Crowdsourced Annotator Distributions into Ensemble Modeling to Improve Classification Trustworthiness for Ancient Greek Papyri
Authors: West Graham , Swindall Matthew I. , Keener Ben , Player Timothy , Williams Alex C. , Brusuelas James H. , Wallin John F.
Published: February 2024

Performing classification on noisy, crowdsourced image datasets can prove
challenging even for the best neural networks. Two issues which complicate the
problem on such datasets are class imbalance and ground-truth uncertainty in
labeling. The AL-ALL and AL-PUB datasets - consisting of tightly cropped,
individual characters from images of ancient Greek papyri - are strongly
affected by both issues. The application of ensemble modeling to such datasets
can help identify images where the ground-truth is questionable and quantify
the trustworthiness of those samples. As such, we apply stacked generalization
consisting of nearly identical ResNets with different loss functions: one
utilizing sparse cross-entropy (CXE) and the other Kullback-Liebler Divergence
(KLD). Both networks use labels drawn from a crowd-sourced consensus. This
consensus is derived from a Normalized Distribution of Annotations (NDA) based
on all annotations for a given character in the dataset. For the second
network, the KLD is calculated with respect to the NDA. For our ensemble model,
we apply a k-nearest neighbors model to the outputs of the CXE and KLD
networks. Individually, the ResNet models have approximately 93% accuracy,
while the ensemble model achieves an accuracy of > 95%, increasing the
classification trustworthiness. We also perform an analysis of the Shannon
entropy of the various models' output distributions to measure classification
uncertainty. Our results suggest that entropy is useful for predicting model
misclassifications.
Playing Safe, Ten Years Later
Authors: Colcombet Thomas , Fijalkow Nathanaël , Horn Florian
Published: February 2024

We consider two-player games over graphs and give tight bounds on the memory
size of strategies ensuring safety objectives. More specifically, we show that
the minimal number of memory states of a strategy ensuring a safety objective
is given by the size of the maximal antichain of left quotients with respect to
language inclusion. This result holds for all safety objectives without any
regularity assumptions. We give several applications of this general principle.
In particular, we characterize the exact memory requirements for the opponent
in generalized reachability games, and we prove the existence of positional
strategies in games with counters.
Deciding Equations in the Time Warp Algebra
Authors: van Gool Sam , Guatto Adrien , Metcalfe George , Santschi Simon
Published: February 2024

Join-preserving maps on the discrete time scale $\omega^+$, referred to as
time warps, have been proposed as graded modalities that can be used to
quantify the growth of information in the course of program execution. The set
of time warps forms a simple distributive involutive residuated lattice --
called the time warp algebra -- that is equipped with residual operations
relevant to potential applications. In this paper, we show that although the
time warp algebra generates a variety that lacks the finite model property, it
nevertheless has a decidable equational theory. We also describe an
implementation of a procedure for deciding equations in this algebra, written
in the OCaml programming language, that makes use of the Z3 theorem prover.