bluuebunny/crossref_metadata_2025 huggingface dataset:
Meiotic spindle as a marker of optimal time for oocyte vitrification – presentation of successful infertility treatment and literature review
Authors:   Center for Assisted Reproduction, Department of Gynecology, Obstetrics and Neonatology, 1st Faculty of Medicine, Charles University and General Hospital in Prague, Czech Republic, Mašata Jaromír , Teplá Olga , Jirsová Simona , Pšeničková Anna , Moosová Martina , Fajmonová Eva , Kratochvilová Irena
Published: January 2025

Aim: Within the in vitro fertilization (IVF) process, to evaluate the possibility of using the state of the meiotic spindle of oocytes as an indicator of maturity in order to optimize the timing of vitrification. Patients and methods: In the presented report, the cause of couple infertility was a combination of a 38-year-old female and 43-year-old male with azoospermia, which was an indication for oocyte vitrification. Oocyte polar bodies and optically birefringent meiotic spindles were visualized by polarized light microscopy and their states and relative positions were used as indicators of oocyte maturation, i.e. readiness for vitrification. Oocytes which had an angle between the polar body and meiotic spindle α ≤ 30° or had a poorly visible meiotic spindle were vitrified 4 hours post-meiotic spindle evaluation (8 hours after ovum pick-up). Results: After thawing, oocytes were fully maturated and prepared for intracytoplasmic sperm injection (ICSI). Fol lowing treatment with tamoxifen, vital sperm were retrieved from the patient’s partner, the oocytes were thawed and fertilized with the obtained sperm, with subsequent embryo transfer and delivery of a healthy baby at term. Conclusion: The meiotic spindle can be used as an oocyte maturation pointer in older women. After thawing, the oocytes were fully matured and ready for fertilization by ICSI.

Key words: oocyte – meiotic spindle – polar body – IVF – pregnancy
Pudendal neuralgia and imaging methods
Authors:   Department of Obstetrics and Gynecology, Hospital Quiron Salud Malaga, Spain, Duchoňová Tereza , Fučík Tomáš , Dvořák Jan , Tintěra Jaroslav , Kautznerová Dana , Švabík Kamil , Mašata Jaromír
Published: January 2025

Objective: To create a comprehensive overview of imaging methods for diagnosing pudendal neuralgia. Methodology: Literature review. Conclusion: Pudendal neuralgia is a chronic pain condition that is difficult to diagnose. On average, it takes 5 years from the onset of symptoms to the correct diagnosis. Diagnosis is based on symptoms described by the patient, neuropelveological physical examination, and presence of the 5 Nantes criteria. Imaging methods, especially ultrasound and magnetic resonance imaging of the pudendal nerve, show great promise for a more accurate and faster diagnosis. These methods can assist in diagnosing issues and excluding other pathologies that may cause symptoms.

Key words: pudendal neuralgia – pudendal nerve – chronic pelvic pain – imaging methods – magnetic resonance
modificación de la clase en el Contrato Estatal
Authors: Alvarado Stapf Amílcar David
Published: January 2025

La restricción sobre la modificación de la clase y el objeto del contrato público es la primera regla que rige sobre las modificaciones y adiciones al contrato con base en el interés público, cuya finalidad es que no se alteren, distorsionen, eludan o se trasgredan los fines de la contratación pública, su naturaleza y condiciones convenidas en el contrato original.
Conjurar esta magna tarea, nos coloca en la privilegiada posición de desentrañar a qué se refiere la ley con la clase de un contrato, elemento que surge  como una condición indispensable para valorar si la modificación al contrato trastoca o varía su clase y, en ese efecto de gravedad, también su objeto.
Responsabilidad objetiva derivada del uso o aplicación de las nuevas tecnologías en la República de Panamá
Authors: Herrera-Hernández Ilka
Published: January 2025

La evolución tecnológica ha influido en el desarrollo económico de los países; Perp también supone una serie de desafíos nuevos de diversa naturaleza, entre los que se incluye la necesidad de legislar sobre la fabricación de máquinas o equipos autónomos, su uso y la responsabilidad derivada de ese uso. En este artículo se describe la situación normativa en Panamá y en algunos países del mundo, y se plantea la necesidad creciente de dotar a los administradores de justicia de criterios y herramientas jurídicas claras, que sirvan para decidir asuntos especializados como el factor de atribución para la indemnización por daños causados por este tipo de bienes, la exclusión del factor conductual o del agente y lo relativo a la culpa o negligencia, con miras a una justa, pronta y adecuada reparación del daño.
Trainerr-max Weekly Learning Framework and Super-smart Study Tips Collection, for When Students Say We Don’t Know How to Learn, Can You Teach Us How to Learn?
Authors: Symington Catherine Ann
Published: January 2025

Quality research into effective learning methodology abounds in education (Hattie, 2019). The need for educators to train and develop students in their capacity to learn is widely recognised (Rickards et al., 2021),pacing with and even outpacing the importance of teaching content(Crocket et al. 2011). However, evidence suggests that many educators and educational institutions lack appropriate resources to meet the learning needs of their students (Goodwin et al., 2020; Pomerance et al. 2016; Rickards et al., 2021). From investigating a wide range of resources, a curated selection of approaches that could support students in their independent learning activities was developed. From this selection, first focussing on what could support my students, then later considering what could support any student, the ‘TRAinERR-MAX Weekly Learning Framework’ and ‘Super-Smart Study Tips Collection’ were developed. While the benefits of applying them through this framework have not been formally assessed, each component of the materials presented is evidence-based to support learning attainment. Hattie(2019) argues that it is not so much further research and development of new strategies that support learning attainment that are critical, but rather support of their implementation that is now required. Prepared inside this argument, this paper intends to facilitate educators’ access to and implementation of a range of strategies by synthesising them into a simple, engaging resource. ‘User’s Guide’ style notes were also developed. The materials presented here are not intended to present the definitive answer of to how to learn. They could, however, be part of the solution.
Two-factor Authentication Smart Entryway using Modified LBPH Algorithm
Authors: Ayop Zakiah , Rosdi Wan Mohamad Hariz Bin Wan Mohamad , Hua Looi Wei , Anawar Syarulnaziah , Othman Nur Fadzilah
Published: January 2025

Face mask detection has become increasingly important recently, particularly during the COVID-19 pandemic. Many face detection models have been developed in smart entryways using IoT. However, there is a lack of IoT development on face mask detection. This paper proposes a two-factor authentication system for smart entryway access control using facial recognition and passcode verification and an automation process to alert the owner and activate the surveillance system when a stranger is detected and controls the system remotely via Telegram on a Raspberry Pi platform. The system employs the Local Binary Patterns Histograms for the full face recognition algorithm and modified LBPH algorithm for occluded face detection. On average, the system achieved an Accuracy of approximately 70%, a Precision of approximately 80%, and a Recall of approximately 83.26% across all tested users. The results indicate that the system is capable of conducting face recognition and mask detection, automating the operation of the remote control to register users, locking or unlocking the door, and notifying the owner. The sample participants highly accept it for future use in the user acceptance test.
Empirical Analysis of the Bias-Variance Tradeoff Across Machine Learning Models
Authors: Ranglani Hardev
Published: January 2025

Understanding the bias-variance tradeoff is pivotal for selecting optimal machine learning models. This paper empirically examines bias, variance, and mean squared error (MSE) across regression and classification datasets, using models ranging from decision tree to ensemble methods like random forest and gradient boost. Results show that ensemble methods such as Random Forest, Gradient Boosting and XGBoost consistently achieve the best tradeoff between bias and variance, resulting in the lowest overall error while simpler models such as Decision Tree and k-NN can have either high bias or high variance. This analysis bridges the gap between the theoretical bias-variance concepts and practical model selection, and offers in- sights into algorithm performance across diverse datasets. Insights from this work can guide practitioners in model selection, balancing predictive performance and interpretability.
Tuber yield components of potato (Solanum tuberosum l.) as influenced by earthing up and inflorescence removal
Authors:   Mekdela Amba University, Tulu Awliya, Ethiopia, Wudu Mosneh
Published: January 2025

Inappropriate agronomic practices, such as earthing up and inflorescence removal, are responsible for the great discrepancy between the potential and achievable yields of potatoes in Ethiopia. To assess the effects of the combination on the tuber yield and yield components of potato, a factorial combination of four earthing up rounds (without, one, two, and three rounds) and three inflorescence removal levels (without removal, bud removal, and flower removal) was used in a randomized complete block design with three replications. The number of marketable, unmarketable and total tubers per hill; and the marketable, unmarketable, and total tuber yields significantly differed in terms of the combined effects of factors. The maximum marketable tuber number (10.07 count/hill), the maximum total tuber number (13.17 count/hill), the marketable tuber yield (31.49 t/ha), and the total tuber yield (33.08 t/ha) were associated with bud removal combined with three rounds of earthing up. Thus, this combination of treatments can be advised for potato production.
The evolution of the degree of attack by grey rot (Botrytis cinerea) on four wine grape cultivars under conventional and organic control treatments, in the Murfatlar viticultural center
Authors:   Research and Development Station for Viticulture and Oenology Murfatlar, Romania, Dina Ionica , Ranca Aurora ,   Research and Development Station for Viticulture and Oenology Murfatlar, Romania, Ene Sergiu Ayar ,   Research and Development Station for Viticulture and Oenology Murfatlar, Romania, Tanase Ana Maria ,   Research and Development Station for Viticulture and Oenology Murfatlar, Romania
Published: January 2025

Between 2023 and 2024, in the vineyard of the Research and Development Station for Viticulture and Oenology Murfatlar, the susceptibility of four wine grape cultivars (Vitis vinifera) ('Columna', 'Pinot gris 13', 'Mamaia', and 'Feteascǎ neagră') to grey mold (Botrytis cinerea) was tested under two types of disease control: organic and conventional. In both disease control systems, four botrytis treatments were applied each year, using the same commercial products with the same active substances per hectare. The treatments, both organic and conventional, were applied during the phenological stages when the grapevine is most vulnerable to this pathogen: after flowering, during bunch closure, at the beginning of veraison and during veraison. Thus, a trifactorial experiment was achieved: vintage year x disease control system x grape cultivar. In the two years of study, the two types of disease control were also differentiated by appropriate field and fertilization technologies. The degree of attack by grey rot (Botrytis cinerea Pers.) was determined on 100 grape clusters per variant at harvest. For the less affected cultivars, 'Columna' (2.48%) and 'Mamaia' (3.49%), the degree of attack (DA %) was statistically lower under all control systems and compared to the other cultivars. These cultivars showed greater native resistance to grey rot compared to 'Feteascǎ neagră' (3.78%) and 'Pinot gris 13' (4.59%). These results are of interest for organic grey rot control practices, and consequently, the 'Columna' and 'Mamaia' cultivars can be recommended for organic cultivation.
Dimensi Tangible Dalam Penyelenggaraan Layanan Publik Pada DPMPTSP-Nakertrans Kabupaten Soppeng
Authors: Zaenuddin Ksatriawan , Anirwan Anirwan , Qamal Qamal , Ismail Ismail , Amin Muhammad As'ad
Published: January 2025

Dimensi Tangible berperan penting dalam keberhasilan pelayanan publik, khususnya di Dinas Penanaman Modal Pelayanan Terpadu Satu Pintu, Tenaga Kerja dan Transmigrasi (DPMPTSP-Nakertrans) Kabupaten Soppeng. Penelitian ini bertujuan mengevaluasi pengaruh fasilitas fisik, penampilan petugas, komunikasi, dan kompetensi petugas terhadap kualitas pelayanan. Hasil penelitian menunjukkan bahwa fasilitas fisik yang baik, seperti ruang tunggu yang nyaman dan penggunaan teknologi modern, meningkatkan kenyamanan dan efisiensi pelayanan. Sistem digital mempercepat proses administrasi, mengurangi beban administratif, serta meningkatkan transparansi dan aksesibilitas layanan. Menggunakan pendekatan kualitatif dengan metode studi kasus, penelitian ini mengeksplorasi persepsi masyarakat dan petugas terkait kualitas layanan yang diberikan. Data diperoleh melalui observasi, wawancara dengan informan terpilih, dan dokumentasi. Informan yang dilibatkan meliputi Kepala Dinas, Sekretaris Dinas, Kepala Bidang Perizinan, operator, serta lima pengguna layanan. Penelitian ini menunjukkan bahwa elemen fisik yang terlihat mempengaruhi persepsi masyarakat terhadap kualitas pelayanan, dengan fokus pada dimensi tangible. Penampilan petugas yang profesional meningkatkan kepercayaan masyarakat, sementara komunikasi yang jelas dan penggunaan alat komunikasi modern mempercepat penyampaian informasi. Selain itu, kompetensi petugas yang terus ditingkatkan sangat berpengaruh terhadap kualitas pelayanan. Secara keseluruhan, DPMPTSP-Nakertrans Kabupaten Soppeng berhasil mengelola dimensi tangible untuk meningkatkan kepuasan masyarakat.
ECONOMIC COOPERATION BETWEEN KAZAKHSTAN AND CHINA: PREREQUISITES, FACTORS AND POSSIBILITIES
Authors:   R.B. Suleimenov Institute of Oriental Studies, Duisen G. , Rakhim G. ,   Abai Kazakh National Pedagogical University, Kopbossynova A. ,   R.B. Suleimenov Institute of Oriental Studies
Published: January 2025

Economic cooperation between Kazakhstan and China is based on geographical proximity, mutual interest in developing trade and investment projects, as well as historically established ties. China's rapid economic growth and high demand for energy resources make Kazakhstan an important partner in the supply of oil, gas and minerals. Kazakhstan, in turn, is interested in Chinese investments in infrastructure and high-tech industries, contributing to the diversification of the country's economy. The implementation of the Silk Road Economic Belt initiative strengthens Kazakhstan's transit potential, turning it into an important link in international logistics. The development of cooperation is accompanied by an increase in bilateral trade and joint investment projects, emphasizing the importance of the Kazakh-Chinese partnership for sustainable economic growth. In addition to the energy sector, there is an intensification of cooperation in agriculture, manufacturing and digital technologies, strengthening the economic resilience of Kazakhstan. The purpose of the study is to analyze the prerequisites, trends and features of Kazakh-Chinese economic cooperation, as well as to identify the factors influencing its development and sustainability. Research methods include analytical, historical-comparative and statistical approaches to analyze trade, investment and energy aspects of Kazakh-Chinese cooperation, using data from international organizations and statistical agencies of Kazakhstan and China.
THE STRUCTURE OF KAZAKHSTAN'S GDP: ANALYSIS AND FORECAST OF KEY GROWTH DRIVERS
Authors:   Economic Research  Institute, Zhanakova N. , Karipova A. ,   L.N. Gumilyov Eurasian National University, Mangibayeva D. ,   Yessenov University, Yerkulova G. ,   Yessenov University
Published: January 2025

The raw materials orientation of the Kazakhstan economy and its high dependence on oil prices makes it more vulnerable to ongoing macroeconomic phenomena and processes. In this regard, there is a need for an in-depth study of the structure of the economy of Kazakhstan, which allows us to identify industries that occupy a significant share and identify key drivers of GDP growth in the country. To do this, the article analyzes the dynamics of Kazakhstan's economic growth over a ten-year period in nominal and real terms. The analysis of the GDP structure of the Republic of Kazakhstan was carried out, as a result of which the predominant share of the services sector was revealed, accounting for more than half of the country's GDP, where the main share is occupied by the trade and transport sector. The share of manufacturing industry prevails in the goods production sector, but it does not make a significant contribution to the country's GDP due to the structural features of the economy associated with the predominance of highly profitable sectors dependent on resource extraction. It is proved that investments, which for many years have been directed to the mining and manufacturing industries, play a special role in the diversification of sectoral directions in the country's economy. Only during the year, investments changed their trajectory in the direction of supporting non-oil sectors, the effect of which is not yet felt. At the same time, there is a decrease in foreign direct investment in the development of such areas as agriculture, education, healthcare, scientific and technical activities, entertainment and recreation.
From Challenges to Triumphs: Exploring the Role of Saudi Vision 2030 in Empowering Women Leadership in Education*
Authors: IQBAL Tahir
Published: January 2025

Women’s underrepresentation in business leadership roles has been a critical debate globally. The recent women’s empowerment initiatives under Saudi Vision 2030 have created new opportunities and mitigated challenges for Saudi women aspiring to leadership roles. In this research, we investigate how Saudi women’s challenges, achievements, and the prospects they navigate influence their success in attaining leadership roles. In addition, we explore the moderating influence of Saudi Vision 2030 on these factors. Employing a quantitative approach, we conducted a survey involving 484 Saudi women working in the education sector across Saudi Arabia. The data was analyzed using SPSS and SmartPLS. The findings show that challenges, prospects, and achievements help Saudi women attain leadership success. In addition, Vision 2030 positively moderates these effects by mitigating challenges, enhancing prospects, and fostering achievements, thereby providing novel insights into the intricate dynamics of women’s leadership in the Saudi context.
Learning and evaluation in the context of the coronavirus pandemic - short and long - term ethical implications. Case study: Primary education in Romania
Authors:   Petroleum-Gas University of Ploiesti, Romania, Stan Emil , Safta Cristina Georgiana ,   Petroleum-Gas University of Ploiesti, Romania
Published: January 2025

This study is based on the premise that closing down schools, due to the Covid 19 pandemic, significantly affects the educational process, both with regard to learning and with regard to assessment and its affective implications; if we refer to primary school pupils, the effects will be felt not only in the short term, but also in the long term, given that this is the age at which fundamental learning skills are acquired. The situation is aggravated in Romania by the absence of an effective digital infrastructure and its specific practices. Our study targets 3rd and 4th grade students in Ploiesti, a large Romanian city (about 250 000 inhabitants);the sample included two ‘city-centre’ schools (schools appreciated and sought after by parents, with a very good public image and adequate digital resources), two ‘neighbourhood’ schools (with rather average material and digital resources), and two rural schools; the sample includes 194 pupils, of which 149 attend urban schools and 45 attend rural schools; of the 149 pupils attending urban schools, 90 are enrolled in ‘neighbourhood’ schools and 59 in schools considered elite; pupils completed a questionnaire in the presence of the class teacher, after the teacher had been trained by the study authors.
EXPERIMENTAL INVESTIGATION OF THE FEASIBILITY OF CORNCOB ACTIVATED CARBON FOR ADSORBED NATURAL GAS STORAGE
Authors:   Department of Petroleum Engineering, Federal University of Petroleum Resources, Effurun, Nigeria, Peter Nelson Oghenenyore , Okologume Wilfred Chinedu ,   Department of Petroleum Engineering, Federal University of Petroleum Resources, Effurun, Nigeria, email: okologume.wilfred@fupre.edu.ng
Published: January 2025

In this study, activated carbon was synthesised from corn cobs through a two-step process involving carbonization at 600°C within an airtight furnace and chemical activation utilising phosphoric acid. The resultant activated carbon derived from corn cobs demonstrated significant adsorption capabilities, with a substantial BET surface area of 860.500 m2/g and exhibiting favourable adsorption-desorption kinetics. These attributes position it as an exceptional precursor material to produce nanoporous carbon materials suitable for the storage of natural gas. Two distinct sample sizes, measuring 841 microns and 400 microns, were meticulously chosen for examination in this investigation. The findings derived from the adsorption of natural gas, quantified in terms of volume-based metrics, revealed a direct and positive correlation between increasing pressures and pore sizes, resulting in higher adsorption capacities. The experimental conditions encompassed a temperature range of 27°C to 40°C, and storage pressures spanning from as low as 3.5 psi to as high as 28 psi. The recorded adsorption capacities were observed to fall within the range of 1.3424 mmol/g to 4.3073 mmol/g. The adsorption capacity of natural gas exhibited sensitivity to variations in both pressure and temperature, with the highest recorded storage capacity of 4.3073 mmol/g occurring at a temperature of 27°C and a pressure of 23 psi. The findings of this study highlight the significant potential of utilising corncob-derived activated carbon as an adsorbent for natural gas storage. Recommendations for further optimization and integration of this technology into existing gas storage systems are discussed. This research advances the prospect of utilising agricultural waste materials for eco-friendly and cost-effective energy storage, contributing to the transition towards a greener energy landscape.
TREATMENT OF RIVER AND LAKE WATER FOR ALGAE USING NANOBUBBLES
Authors:   Doctoral School, Engineering Sciences (Mines, Oil and Gas), Petroleum-Gas University of Ploiesti, Romania, email (corresponding author): elecdan@gmail.com, Cirjan Dan Ovidiu , Stoicescu Maria ,   Petroleum-Gas University of Ploiesti, Romania
Published: January 2025

This study explores the innovative use of nanobubbles in treating river and lake water, focusing on the removal of algae and other organic pollutants. The research combines a comprehensive literature analysis with the development and testing of an autonomous water treatment system based on ozone nanobubbles technology. The methodology includes designing for constructing a catamaran-type vessel equipped with gas separation systems, ozone generation, and nanobubbles production. Experimental results indicate significant efficiency of nanobubbles in algae removal, with over 90% reduction observed, and substantial improvement of water quality parameters such as dissolved oxygen and turbidity. The proposed system can treat approximately 66 m³ of water per hour, demonstrating the technology's potential for large-scale applications in water body management and restoration. This study contributes to the advancement of ecological and efficient water treatment methods, offering a viable alternative to conventional water quality management techniques in aquatic ecosystems.
This study has no academic precision pretention in its application part: it evolved from the owner of the lake need of valuing its asset for business production and the author need of fishing passion and interest in solving the situation. Yet its findings are objective and accurate. It had no finance for equipment, works, laboratory analysis, or any other related activity. Data measurements was gathered with common water quality digital testers with 2% precision and did not follow the laboratory determination quality standards.
IMPROVEMENT OF OIL PRODUCTION BY MATRIX ACIDIZING OF A WELL IN SANDSTONE RESERVOIR
Authors:   Department of Mechanical, Petroleum and Gas Engineering, National Advanced School of Mines and Petroleum Industries, University of Maroua, Cameroon, Fouazong Darel Sontia , Ngongiah Isidore Komofor ,   Department of Physics, Faculty of Science, University of Bamenda, P.O. Box 39 Bamenda, Cameroon, Chéagé Chamgoué André ,   School of Geology and Mining Engineering, University of Ngaoundere, Meiganga, Cameroon, Talla Alain Francis ,   Department of Mechanical, Petroleum and Gas Engineering, National Advanced School of Mines and Petroleum Industries, University of Maroua, Cameroon, Dikongue Jemea Jean Jacques ,   Department of Mechanical, Petroleum and Gas Engineering, National Advanced School of Mines and Petroleum Industries, University of Maroua, Cameroon
Published: January 2025

This paper focuses on investigating the reasons behind the low productivity of a confidentially named well, referred to as X102, in sandstone reservoirs. The objective is to enhance the well’s productivity through the implementation of acidizing techniques. The paper makes a significant contribution to the existing literature in this field by expanding the knowledge base and providing an economic analysis of acidizing oil wells. The assessment of the X102 well indicates that it exhibited initial productivity from the natural energy of the oil reservoir, demonstrating an oil flow rate of 307 barrels per day with a skin value of 35. After 3 years of production, the X102 well experienced a decline in productivity due to fines migration. Excel software was employed to process well completions, reservoirs, production, well tests, and economic data. The Horner plot slope was used to calculate the damage, Pipesim software extracted the initial profile of the X102 well, and StimCADE software facilitated the acidizing design. Following the implementation of acidizing, a reduction in fines flow was observed, resulting in a decrease in skin value from 35 to 5. The acid treatment successfully dissolved the fine particles, leading to an increased oil flow rate of 1006 barrels per day. Economically, acidizing proved suitable, generating a profit of $44,062,800 and achieving a return on investment in 89 days over a 2-year production period.
MODELING OF THE ZONES OF INFLUENCE OF GAS WELLS AT A DEPLETED RESERVOIR
Authors:   Petroleum and Gas Doctoral School, Petroleum-Gas University of Ploiesti, Romania, e-mail: alexstoica97@yahoo.com, Stoica Ioan Alexandru , Avram Lazăr ,   Faculty of Petroleum and Gas Engineering, Petroleum-Gas University of Ploiesti, Romania, Simescu Bogdan ,   Petroleum and Gas Doctoral School, Petroleum-Gas University of Ploiesti, Romania, e-mail: gabisimica@yahoo.com, Helstern Mihaela ,   National University of Science and Technology Politehnica Bucuresti, Romania
Published: January 2025

Modeling the behavior of natural gas wells during exploitation is often an essential step in studying the evolution of natural gas production. However, the theoretical simulation models of wells placed on depleted deposits usually gave results different from the reality in the field. This was due to problems with the integrity of the productive strata, especially with the degree of sealing of the existing wells. The present work attempts to develop and carry out a rigorous research program of a deposit from the Sarmatian deposits of the Transylvania basin. In the paper it is presented a theoretical framework through which the behavior of the depleted field can be followed by discretizing the field and setting some discrete properties (in the case present the deposit pressure), which by expanding the modeling can serve to identify poorly drained areas, which can be exploited in the future, contributing to the increase of the final recovery factor. This discretization was achieved through the system of grid blocks, for which the average properties (temperature, pressure, permeability, etc.) and connectivity between them were modeled through the flow coefficients. The theoretical model applied to the particular deposit, which can be extended for future production provisions, by setting time intervals e.g. to a month/year instead of days and extending the grid over the entire surface of the field, not only for the central area, where the wells are grouped.
PENGEMBANGAN MEDIA PEMBELAJARAN BARUNG SILUNG BERBASIS ANDROID
Authors: CHRISTIAN STEVEN , PRAYITNO ANTON , WINARTO BAMBANG
Published: January 2025

This research aims to develop android-based learning media on Curved Side Spaces material, and evaluate the feasibility of the developed media. This Android-based learning media development was developed using 4 (four) software, including: (1) Canva; (2) PowerPoint; (3) iSpring Suite; and (4) Website 2 APK Builder. In this study, the development model refers to the ADDIE development model, with its stages, namely: (1) Analysis; (2) Design; (3) Development; (4) Implementation; (5) Evaluation. The research instruments include validation sheets for experts and student response questionnaires. The results of expert validation show an average feasibility of 83% (quite valid), while the results of student responses get an average of 79.5% (good). Based on these findings, the learning media “Barung Silung” is considered feasible to use to support math learning. This research is limited to the media development stage.
ABSTRAKPenelitiani inii bertujuani untuki mengembangkan mediai pembelajarani berbasisi androidi pada materi Bangun Ruang Sisi Lengkung, serta mengevaluasi kelayakan media yang dikembangkan. Pengembangani mediai pembelajarani berbasisi Androidi ini dikembangkan menggunakan 4 (empat) software, di antaranya: (1) Canva; (2) PowerPoint; (3) iSpring Suite; dan (4) Website 2 APK Builder. Dalam penelitian ini, model pengembangannya mengacu pada model pengembangan ADDIE, dengan tahapani-itahapannya iyaitu: (1) iAnalysis (analisis); (2) Designi (desain); (3) Developmenti (pengembagan), (4) Implementationi (implementasi), (5) Evaluation (evaluasi). Instrumen penelitian meliputi lembar validasi untuk ahli dan angket respon siswa. Hasil validasi ahli menunjukkan rata-rata kelayakan sebesar 83% (cukup valid), sementara hasil respon siswa mendapatkan rata-rata 79,5% (baik). Berdasarkan temuan ini, media pembelajaran "Barung Silung" dinilai layak digunakan untuk mendukung pembelajaran matematika. Penelitian ini dibatasi pada tahap pengembangan media.
GAMBARAN COLLEGE ADJUSTMENT PADA MAHASISWA: STUDI DESKRIPTIF DI PERGURUAN TINGGI YANG MENERAPKAN HYBRID LEARNING
Authors: SASONGKO SHABRINA NUR AULIA , HASTUTI RAHMAH
Published: January 2025

This study aims to describe the college student adjustment in the context of hybrid learning in higher education. Hybrid learning combines face-to-face and online learning, adaptation challenges for students, particularly after the COVID-19 pandemic. The study employs a qualitative descriptive method with purposive sampling, involving 125 students from various cohorts at a university in West Jakarta. Data analysis was conducted using MAXQDA 2020 software to explore four aspects of adjustment: academic adjustment, social adjustment, personal-emotional adjustment, and goal commitment-institutional attachment. The findings reveal that hybrid learning positively impacts students' learning motivation and social interactions but also presents challenges such as boredom, stress, and time management difficulties. This research provides valuable insights into factors influencing student adjustment in a hybrid learning system.
ABSTRAKPenelitian ini bertujuan untuk mendeskripsikan gambaran college student adjustment (penyesuaian diri mahasiswa) dalam proses pembelajaran hybrid learning di perguruan tinggi. Hybrid learning menggabungkan pembelajaran tatap muka dan daring, memberikan tantangan adaptasi bagi mahasiswa, terutama setelah pandemi coronavirus disease (covid-19). Penelitian ini menggunakan metode deskriptif kualitatif dengan pendekatan purposive sampling, melibatkan 125 mahasiswa dari berbagai angkatan di salah satu Universitas di Jakarta Barat. Analisis data dilakukan menggunakan software MAXQDA 2020 dan mengidentifikasi empat aspek penyesuaian diri sebagai temuan penelitian yaitu: penyesuaian akademik, penyesuaian sosial, penyesuaian personal emosional, dan kelekatan terhadap universitas. Hasil penelitian menunjukkan bahwa hybrid learning memiliki dampak positif terhadap motivasi belajar dan interaksi sosial mahasiswa, namun juga memunculkan tantangan berupa kebosanan, stres, dan kesulitan dalam mengatur waktu dalam penerapan sistem hybrid learning.
CUIDADOS PALIATIVOS PEDIÁTRICOS NO BRASIL
Authors: Bezerra Maria Jussara Magda , Jesus Lana Paula Amorim de , Cajado Lainara Nirvana Souza , Medeiros Thaysa Alves da Silva , Silva Henika Priscila Lima
Published: January 2025

Os cuidados paliativos no Brasil são ofertados pelo SUS e pelas iniciativas privadas, com um modelo de assistência baseado na coordenação do cuidado. O processo de cuidar, amparar e abrigar vai além da noção de cura com o afastamento da dor, do sofrimento e da morte, mas prioriza a ampliação da qualidade de vida e da autonomia da pessoa que demanda cuidado. Diante disso, o estudo teve por objetivo identificar a importância dos cuidados paliativos oferecidos por profissionais de saúde às crianças e teve como metodologia uma revisão integrativa de literatura realizada durante os meses de setembro e outubro de 2024, nas seguintes bases de dados: LILACS, SCIELO e Pubmed. Os estudos selecionados foram submetidos a uma ampla análise semi estruturada e dirigida por três pesquisadores, sendo o quarto responsável por verificar eventuais divergências de tema. Os resultados demonstram que, apesar de haver poucos trabalhos científicos que comprovem as relações dos temas em âmbito intra hospitalar e extra hospitalar, há uma ideia central de que a oferta dos cuidados paliativos para com as crianças ainda é um tabu. Em suma, a assistência em cuidados paliativos tem a necessidade de enfrentar desafios relacionados à adaptação das ações às diferentes realidades.
GLOBALIZAÇÃO E CAPITALISMO: MUDANÇAS NO TOCANTE ÀS MIGRAÇÕES
Authors: Corrêa Érica de Azevedo , Lemos Júnior Eloy Pereira
Published: January 2025

A presente pesquisa pretende realizar reflexões acerca do papel das migrações dentro da perspectiva do capitalismo no mundo globalizado. Inicialmente foi realizada uma análise introdutória sobre o fenômeno da globalização, destacando os pontos de maior relevância. Em seguida o capitalismo foi abordado, a fim de ressaltar a sua perspectiva dentro de um mundo interligado. Por fim, tratou-se das migrações, estabelecendo as suas conexões com os conceitos já abordados. O trabalho foi realizado por meio de pesquisas bibliográficas, utilizando-se do método hipotético-dedutivo, empregando a crença na necessidade de se compreender o ontem como forma de vislumbrar a melhoria do hoje e do amanhã, como lastro verídico que desencadeou todo o estudo.
A novel conceptual model for Dansgaard–Oeschger event dynamics based on ice-core data
Authors: Melcher Jonathan Ortved , Halkjær Sune , Ditlevsen Peter , Langen Peter L. , Vettoretti Guido , Rasmussen Sune Olander
Published: January 2025

Abstract. This study introduces a novel dynamical systems model designed to capture the highly non-periodic nature of Dansgaard–Oeschger (DO) events. Such events are difficult to model adequately due to their variable durations (some lasting around 1 century, while others span multiple millennia) and the occurrence of short precursor events that precede longer DO events despite similar boundary climate conditions. Utilising a simplified two-equation framework derived from the Stommel model, our approach integrates an internal control parameter which acts as a feedback parameter on the Antarctic Bottom Water (AABW) formation. Through both analytical and numerical methods, we establish a suitable parameter domain within which the newly adjusted models can accurately replicate the palaeoclimatic records of DO events as described by summary statistics derived from ice-core data. The analysis also shows that, without the novel control parameter, the model does not have a suitable parameter domain in which it can reproduce the wide range of event characteristics seen in the ice-core record. The study provides new insights into the underlying mechanisms driving these highly significant climate phenomena and the necessary timescale in which they are forced by allowing the new model's parameters to vary through time. This allows our model to achieve unprecedented precision in capturing a realistic sequence of DO events with timing characteristics matching those of the observational record. This refined model not only enhances our understanding of the DO cycles but also demonstrates the potential of simple dynamical systems to simulate complex climate interactions.
Investigating the impact of subgrid-scale aerosol-cloud interaction on mesoscale meteorology prediction
Authors: Zhang Wenjie , Wang Hong , Zhang Xiaoye , Peng Yue , Liu Zhaodong , Wang Deying , Zhang Da , Han Chen , Zhao Yang , Zhong Junting , Jia Wenxing , Ning Huiqiong , Che Huizheng
Published: January 2025

Abstract. Aerosol-cloud interaction (ACI) significantly influences global and regional weather systems and is a critical focus in numerical weather prediction (NWP), but subgrid-scale ACI effects are often overlooked. Here, subgrid-scale ACI mechanism is implemented by explicitly treating cloud microphysics in KFeta convective scheme, which realizes real-time subgrid-scale size-resolved hygroscopic aerosol activation and cloud radiative feedback, in a mesoscale atmospheric chemistry model CMA_Meso5.1/CUACE to investigate its impacts on meteorology prediction in summer over central and eastern China. Results show that incorporating subgrid-scale ACI refines cloud representation even in some grid-scale unsaturated areas and subsequently leads to attenuated surface downward shortwave radiation with regional mean bias (MB) decreasing by 23.1 %. The increased cloud radiative forcing results in lower temperature and higher relative humidity (RH) at 2 m, helping to reduce regional MB by 40 % and 18.1 %. Temperature vertical structure and RH below ~900 hPa are improved accordingly due to cooling and humidifying. Subgrid-scale ACI further significantly enhances precipitation, especially at grid-scale, thus reducing regional MB by 34.4 %. The differences in subgrid-scale ACI effects between various subregions are related to convective conditions and model local errors. Additionally, compared to simulations with anthropogenic emissions turned off, subgrid-scale actual aerosol inhibits cumulative precipitation during a typical heavy rainfall event by 5.6 %, aligning it with observations, associated with lower autoconversion at subgrid-scale and less available water vapor for grid-scale condensation, suggesting competitions between subgrid- and grid-scale cloud. This study demonstrates the importance of real-time subgrid-scale ACI in NWP models and the necessity of multiscale ACI studies.
#UbirajaraBelongstoBR: social media activism against (neo)colonial practices in palaeontology
Authors: Rahimi Fard Kashani Mohammad Ali , Raja Nussaïbah B. , Camargo Chico Q.
Published: January 2025

Abstract. Social media has revolutionized the engagement between scientists and the public, offering platforms to challenge unethical practices and advocate for change. In December 2020, Brazilian paleontologists and supporters initiated the hashtag #UbirajaraBelongstoBR on Twitter (now X) to protest the alleged illicit acquisition and export of the dinosaur fossil Ubirajara jubatus from Brazil to Germany. This movement not only demanded the fossil's repatriation but also sparked global discussions on neo-colonial practices in paleontology. In this study, we analyze 39,728 tweets containing the hashtag #UbirajaraBelongstoBR, collected between December 2020 and February 2023. Employing social network analysis and computational text analysis, we examine the dynamics of this online movement, identify key influencers, and assess its reach and impact. Our results reveal that the campaign transcended the paleontology community, engaging a diverse international audience including scientists, artists, activists, and the general public. Sentiment analysis indicates shifts corresponding to pivotal events, such as official statements and the eventual repatriation of the fossil. Our findings demonstrate the power of social media in mobilizing grassroots movements and influencing scientific discourse and policy. The #UbirajaraBelongstoBR case illustrates how digital platforms can facilitate international advocacy against unethical scientific practices, highlighting social media's potential to effect change in scientific governance and promote ethical standards. This study contributes to the understanding of digital activism in science communication and underscores the evolving landscape of public engagement in scientific issues.
Bridging the polarimetric structure and lightning activity of an isolated thunderstorm during the cloud life cycle
Authors: Zhao Chuanhong , Zhang Yijun , Zhai Huiyan , Li Zhe , Zheng Dong , Peng Xueyan , Yao Wen , Du Sai , Du Yuanmou
Published: January 2025

Abstract. Cloud microphysics and dynamics produce lightning flashes, which can be detected as polarimetric structures by radar. Many studies have indicated that differential reflectivity (ZDR) and specific differential phase (KDP) columns, which serve as proxies for updraft strength, are related to lightning activity; moreover, the quantities of ice and supercooled liquid water strongly influence the occurrence of lightning flashes via noninductive charging. However, few studies have focused on clarifying the sequence or interactions among these factors from the perspective of the cloud life cycle. Here, we establish the ‘3D mapping columns’ method, which is based on the Cartesian grid datasets; this method is sensitive for identifying and quantifying the ZDR columns in the early phase of cloud formation. Our study bridges the polarimetric structure and lightning activity within an isolated thunderstorm during the cloud life cycle. The results indicate that i) the parameter most relevant to total flashes/cloud-to-ground flashes is the content of supercooled rainwater/graupel. ii) The onset of the ZDR column can be used to forecast lightning initiation in advance. iii) The signatures of the ZDR and KDP columns should be complementary and used to retrieve dynamic information instead of lightning activity. Notably, the variation in the ZH intensity within ZDR columns has high potential for predicting lightning activity during the cloud life cycle, which is valuable for exploration in the future. Our study improves the overall understanding of cloud microphysics and lightning activity, and suggestions for using these multiple polarimetric signatures to forecast severe weather are provided.
Developing predictive models for sex determination based on weight, length and width of eggs in White leghorn laying hens
Authors:   Division of Poultry Science, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh - 243 122,, Anjana Anjana , Bhanja Bhanja , Hyder Basil , Gaikwad Shriram Anurath
Published: January 2025

In layer industry, females are the preferable gender. This intensification gave rise to killing of billions of dayold
male chicks in commercial hatcheries on day-one itself. This practice results in the waste of hatching cost and
raises serious concern about animal welfare. The most reliable solution is determination of the sex of embryos prior
to hatch, preferably before incubation. In the current study, an attempt was made to identify sex of chick embryo before
incubation by using egg morphometry like weight, length and width. About 48 White leghorn laying hens of 30-32 and
50-52 weeks old (24 each) were reared in individual laying cages for a period of 120 days under the division of poultry
housing management, ICAR-Central Avian Research Institute, Izatnagar. Birds were inseminated with pooled semen
(1:8) at 5 days interval to collect hatching eggs and weight, length and width of eggs were recorded on daily basis. These
eggs were incubated and day- old chicks hatched from these eggs were vent sexed and the data from 2800 chicks were
collected and statistical analysis was carried out. Egg weight, length and width were found to have a significant effect
(p<0.05) on determining the sex of chicks. Regression analysis was done using various morphometric parameters of
egg for prediction of sex of chick from the above findings. These regression equations were made by using different
combinations of morphometric values. Using paired sample test, better predictions were found out which can be further
used for predicting the sex of eggs before incubation. .
Keywords: Sex determination, egg weight, egg morphometry
Comparative evaluation of biochemical and imaging modalities in diagnosis of acute pancreatitis in dogs#
Authors:   Department of Veterinary Clinical Medicine, Ethics and Jurisprudence,, Hana V. P. , Mathew Manju K. , Umesh C.G. , Uma R. , Anoopraj R. , George Arun , Unny N. Madhavan , Saifudeen Safeer M.
Published: January 2025

Diagnosis of exocrine pancreatic diseases in dogs is challenging. The anatomical location of pancreas, wide
variations in clinical presentation, non specific clinico-pathologic parameters and lack of a single accurate diagnostic
test together contributes to the difficulty in diagnosis of acute pancreatitis. In the present research, the effectiveness
of haematology, estimation of serum biochemical parameters, species specific SNAP cPL and imaging techniques in
the diagnosis of pancreatitis was compared. Serum lipase and serum amylase were significantly elevated in the cases
screened for acute pancreatitis. SNAP cPL test was found positive in 27.58 per cent of the suspected cases of pancreatitis.
No significant changes could be observed in the pancreas on abdominal radiography and ultrasonography. Estimation of
serum lipase and amylase and SNAP cPL test aid in more accurate diagnosis of acute pancreatitis when compared with
other diagnostic modalities.
Keywords: Acute pancreatitis, serum amylase, serum lipase, SNAP cPL test
A modified peritoneal shunt for the management ofhydrocephalus in a pup
Authors:   University Veterinary Hospital, Kokkalai, Thrissur-680021, Varghese Reji , Philip Laiju M. , Jos B.M. Nijin , Kumar Ajin S. , Venugopal Syam K. , Prasanna K.S.
Published: January 2025

A three-month-old male Shih Tzu pup was presented to the University Veterinary Hospital, Kokkalai with the
complaint of dome–shaped head, ataxia, abnormal behaviour and vocalisation. On physical examination and diagnostic
imaging, it was confirmed as a case of hydrocephalus. A 5FG infant feeding tube was used to shunt the cerebrospinal
fluid from the subarachnoid space into the peritoneal cavity. It was managed on post-operative antibiotics, analgesics,
antiseizure medication and supplements. Upon worsening of clinical symptoms, the pup was euthanised three months
later and subjected to detailed post-mortem and histopathological studies.
Keywords: Hydrocephalus, modified peritoneal shunt, pup