bluuebunny/crossref_metadata_2025 huggingface dataset:
Cuotas y preferencias
Authors: Velasco Francisco
Published: September 2024

Muchos ordenamientos jurídicos favorecen la presencia de determinados grupos o categorías sociales en órganos o entidades públicos: en sus parlamentos o en sus Administraciones públicas. A veces, la presencia institucional de estos grupos se articula mediante cuotas y criterios de preferencia en la composición o estructura interna de aquellos órganos o entidades. Esta es una nota característica de las "sociedades complejas", en las que distintos grupos o categorías sociales pugnan por su reconocimiento, por el Estado y por el Derecho. Aunque la cuotas y preferencias son muy diversas, en este estudio se parte de la premisa metodológica de que es posible un análisis teórico general de todas lellas. De este análisis no deriva, como hipotética consecuencia dogmática, que todas las cuotas y preferencias tengan un significado jurídico único. Se propone, más bien, que el significado jurídico de cada cuota o preferencia resulta de la mayor o menor presencia de uno de estos cuatro valores o principios constitucionales: igualdad (arts. 1, 9.2 y 14 CE), democraticidad (art. 1.1 CE), eficacia administrativa (art. 103.1 CE); y mérito y capacidad en el acceso a la función pública art. 103.3 CE). Partiendo de la distinta relevancia de estos cuatro valores o principios constitucionales respecto de cada cuota o preferencia, resulta posible también un estudio analítico sobre los elementos definitorios de todas las cuotas y preferencias, a saber: el grupo beneficiado; el órgano o entidad que soporta la cuota o preferencia; el tipo de cuota o preferencia; y sus efectos jurídicos.
Improving Animal Health and Production through Epidemiological Studies and Technological Integration
Authors: Ongom Jonathan
Published: September 2024

Improving animal health and production is critical for ensuring food security, economic stability, and human health. This paper explores the synergistic potential of epidemiological studies and technological integration in enhancing livestock health and productivity. Through a comprehensive survey distributed to livestock farmers, statistical analyses using SPSS, and qualitative analysis with NVIVO, the study identifies common health issues, assesses current health practices, and evaluates the effectiveness of various technologies. The results show that telemedicine, wearable technology, data analytics, and remote sensing greatly enhance animal health outcomes. Case studies highlight the advantages and difficulties of implementing these technologies in dairy, sheep, and poultry production by offering real-world insights. The study concludes with recommendations for developing cost-effective technologies, enhancing data interoperability, and providing better training for farmers and veterinarians. By addressing these areas, the agricultural industry will achieve substantial gains in animal health, productivity, and sustainability, ultimately contributing to global food security and economic growth.
Infection Rate of Two Parasites Found in Leprus Wheeleri Captured in The Northern Chihuahuan Desert
Authors: D. Rech Niccole , Amaya JuanCarlos , Figueroa Kristy , FloresQuintana Sergio Nephtali , Robledo Leo , Speer Kayci
Published: September 2024

During the summer of 2023, seventy-nine Leprus wheeleri (Thomas) grasshoppers were captured in a 5-hectare section of the Northern Chihuahua Desert. Grasshoppers are important to the ecosystem for several reasons. First, they add a significant amount of biomass to a region. Secondly, they enrich the soil by facilitating the breakdown of organic nutrients. And third, they stimulate plant growth. However, they can also be a detriment to agricultural crops when their population numbers exceed the carrying capacity of the region. There are usually checks and balances in nature. Several parasites infect Leprus wheeleri populations. Among them are nematodes, mites, and bacteria. Our study examines the percentage of Leprus wheeleri captured that were infected with the mite Eutrombidium locustarum (Walsh, 1866) and an alpha proteobacterium Wolbachia pipientis (Hertig, 1936). Eutrombidium locustarum is a microparasite and Wolbachia pipientis is an endosymbiont, that is sometimes mutualistic with its hosts. Wolbachia was identified by targeting the 16S rDNA gene of the small unit of the bacterial ribosome. Insect DNA was identified by targeting the Cytochrome C Oxidase gene. DNA was extracted from the grasshoppers through a 24-step process, then amplified by PCR, and finally identified by running an electrophoresis gel. Wolbachia DNA is visible at 438 base pairs (bp), and insect DNA is visible at 709 bp. Eutrombidium locustarum was identified by examination under a dissecting microscope. The mites were located on the wings, head, neck, and legs. The mites were also tested for Wolbachia. Eutrombidium locustarum DNA is also visible at 709 bp.
Innovation of Batang Serangan River Wood Waste as a Superior Product for Sei Serdang Village in the Tangkahan Ecotourism Area
Authors: Prayudi Ahmad , Siregar Nina S Salmaniah , Rambe Yunita Safitri , Yusnaini  , Sari Warsani Purnama , Rosalina Dhian
Published: September 2024

Sei Serdang Village is one of the tourist villages in the Tangkahan Ecotourism area. This village area is part of the Gunung Leuser National Park region, which is a key destination for tourists visiting Tangkahan. The Batang Serangan River has become a problem for the residents of Sei Serdang village, as the riverbanks are filled with broken and damaged wood, leading to potential flash floods. The aim of this activity is to train local partners, who are craft and furniture makers in Sei Serdang village, to manage the wood waste from the Batang Serangan River. Proper wood waste management can reduce production costs, clean up the Batang Serangan River from wood waste, and contribute to the community's welfare. This activity uses a participatory approach combining lectures, discussions, training, and activity monitoring. The stages of the activity include observation, socialization, wood waste design training, preservation training, production and finishing training, and finally, evaluation. The team conducted pre and post-tests to evaluate and understand perceptions of wood waste production knowledge. The results show a 40% increase in craftsmen’s understanding of wood waste processing, a 10% increase in business potential understanding, a 12% increase in knowledge of supporting equipment use, and a 15% increase in awareness of maintaining the Batang Serangan River.
INVESTIGATION OF ICE-FORMING PROPERTIES OF REAGENTS BASED ON CLUSTERS OF METAL OXIDE NANOPARTICLES
Authors: Khuchunaev Buzigit Mussayevich , Gekkieva Safiyat Omarovna , Budaev Alim Khadisovich
Published: September 2024

Obtaining nanomaterials with ice-forming properties, their use for the elimination of natural emergencies (hail control, drought control, etc.) is an urgent problem. The article describes a set of equipment, methods of conducting experiments and the results of evaluating the ice-forming properties of clusters of zinc oxide (ZnO) and aluminum oxide (AlO) nanoparticles. These clusters are obtained and studied under conditions close to natural, in an artificial cloud environment at subzero temperatures. The starting material is zinc powder and aluminum powder. According to the results of the research, clusters of zinc oxide and aluminum oxide nanoparticles are new reagents for active effects on cloud processes according to their ice-forming characteristics.
A STUDY OF RUSSIAN POLITICAL PARTIES AND THEIR DIPLOMATIC RELATIONS WITH CHINA FROM THE PERSPECTIVE OF CHINESE SCHOLARS
Authors: Wang Yaqing
Published: September 2024

This article focuses on the analysis of Chinese scholars' research on Russian parliamentary parties and their interactions with the Communist Party of China, aiming to summarize the characteristics and shortcomings of this research field.
RECONSTRUCTION OF HISTORICAL DISTRICT DAO WAI (HARBIN)
Authors: Kozyrenko Natalia Efremovna , Kozyrenko Ivan Sergeevich
Published: September 2024

The article examines the problems of reconstructing the historical environment of the Harbin Dao Wai district. Field surveys of the state of architectural monuments in retro styles were carried out and methods of environmental reconstruction were investigated. We identified shortcomings that determined of the area and at the same reduced the aesthetic of the unique environment.
THE DIGITAL DOPPELGANGER AND THE DIGITAL GHOST: THE ETHICAL AND SOCIAL CONSEQUENCES OF HUMAN IMITATION IN THE DIGITAL AGE
Authors: Smetana Vladimir Vasilyevich
Published: September 2024

The 21st century has been marked by unprecedented progress in the field of information technology, artificial intelligence (AI) and big data analysis. These achievements not only transform familiar spheres of life, but also pose new, sometimes existential questions to humanity related to the very understanding of life, death and the human personality. One of the most striking illustrations of these transformations is the emergence of digital twins - dynamic, updatable digital models of real people capable of imitating their behavior, preferences, and even making decisions. Digital twins are increasingly being used in various fields, from personalized medicine and education to optimizing business processes and creating new types of entertainment. However, in parallel with the development of digital twins, a more controversial concept is emerging - digital immortality, which involves the creation of digital ghosts - virtual copies of deceased people. This idea, which once belonged to the field of fiction, is now becoming more and more realistic, thanks to the development of natural language processing technologies, machine learning and big data analysis. The creation of digital doppelgangers, and even more so, digital ghosts, raises many complex ethical, social and philosophical questions: · The problem of authenticity and identity: how accurately can a digital copy reflect the uniqueness and versatility of a human personality? Where is the line between imitation and authenticity? · The issue of consent and control: who has the right to create and use digital copies of people, especially after their death? How can people's rights and privacy be protected in a digital environment? · Psychological and social consequences: How will the widespread use of digital doppelgangers and ghosts affect our perception of life and death, interpersonal relationships, and social norms and values? This work is devoted to a comprehensive analysis of these issues. The study will examine the key technologies underlying the creation of digital twins and ghosts, analyze the potential benefits and risks of their use, and propose ethical principles and recommendations for the responsible development and application of these technologies in the interests of man and society.
CHINA AND RUSSIA FOR WORLD PEACE. SPHERAL LOGIC OF ITS PROMOTION THROUGH INNOVATIVE SPHERAL AI AND ACCELERATED GROWTH OF THE ECONOMY, INVESTMENT AND BUSINESS
Authors: Semashko Leo Mikhailovich
Published: September 2024

In connection with the China and Russia leaders negotiations in May, the article sets out the foundations of the new macrosociological “Peace Science”, developed by the author with colleagues of about 50 years, which reveals the peacemaking societal genome of humanity and the spheral logic of its sustainable development. It provides the creation of a new, spheral class of planetary AI as an instrument of accelerated growth of economy and providing “peace around the world”.
PROBLEMS OF QUANTUM CRYPTOGRAPHY IN A MODERN INFORMATION SOCIETY
Authors: Barashko Elena Nikolaevna , Fedorov Alexey Alekseevich
Published: September 2024

The article discusses and compares quantum and post-quantum cryptography and their relevance in the modern information society.
APPLICATION OF THE METHOD OF REMOTE CONSULTATIONS IN THE ROUTINE PRACTICE OF A DENTIST IN ORDER TO IMPROVE THE QUALITY OF MEDICAL CARE
Authors: Semenova Iuliia Aleksandrovna , Morozov Vladimir Grigorievich , Degtyarev Nikita Evgenyevich
Published: September 2024

The development of technical progress, the use of information computer technologies in medical practice contributes to the development of such a direction as telemedicine. It became possible to communicate between a dentist and a patient via video link, which ensures the availability of this type of medical care to those categories of citizens who are unable to attend an in-person consultation. In addition, it becomes possible to dynamically monitor patients after performing medical procedures with monitoring of their condition and recommendations for the development of complications; consultations of patients with highly specialized specialists. This significantly improves the quality of medical care provided. Video consultations for dental patients gained particular popularity during the COVID-19 pandemic, when personal consultations were limited by the possibility of spreading the infection.
RESULTS OF CHEMOINFUSION INTO A BRONCHIAL ARTERY BRANCH IN PATIENTS WITH UNRESECTABLE LOCALLY ADVANCED NON-SMALL CELL LUNG CANCER
Authors: Isametov Davran Rashitovich , Gantsev Shamil Hanafievich , Maulenov Zhaksylyk Orazbaevich , Arybzhanov Dauranbek Tursunkulovich , Tursumetov Davlat Saitmuratovich
Published: September 2024

Lung cancer, despite modern trends in the development of medical oncology, remains one of the key tasks of clinical medicine. On the one hand, this is due to the fact that the overwhelming number of patients at the time of initial diagnosis have an unresectable/inoperable stage of the disease, on the other hand, the latest predictive indicators in the world still indicate a high incidence of morbidity and mortality in terms of cancer incidence. In this regard, there is an urgent need to find alternative ways to treat the malignant process, including drugs. Drug therapy for lung cancer in the world today is represented by an extensive list of optional cytostatics, targeted agents, and immunoages. Thus, in the Russian Federation, over 63 thousand new cases of lung cancer are detected annually and about 53 thousand in men. The average annual growth rate was 0.06% for men and 1.99% for women for 2021 [1,2,3] and the number of newly identified cases is steadily growing. In the Republic of Kazakhstan, these data are statistically different from those of the Russian Federation in terms of the structure of cancer incidence per capita and amount to 3,615 new cases for 2021 and 3,925 identified new cases of lung cancer for 2022. [2,4]. Almost 40-50% of cases of verified lung cancer do not carry a detectable mutational load; therefore, the targeted use of genetically modified therapy options is not applicable in these cases, but is limited only to a combination of chemotherapy regimens that also have the expected therapeutic effect [5,6,7]. In this regard, we widely use the technique of intra-arterial chemotherapy with increased bioavailability of cytostatics with local effects and minimal toxic effects in unresectable lung cancer.
COMPLEX CORRECTION OF MEN'S HEALTH PATIENTS WITH DIABETES -2, OBESITY 1-2 DEGREE AND HYPERTENSION 1A-1B
Authors: Golovanov Sergey Alexandrovich , Rasulov Maksud Mukhamedzhanovich
Published: September 2024

The possibility of correction with the help of trekrezan in combination with physical activity of the health status of men with type 2 diabetes mellitus, complicated by obesity of 1-2 degrees and hypertension 1A-1B, was studied. It has been established that the use of automatic control by the TANITA program during physical activity helps reduce blood pressure, blood glucose, and the degree of obesity.
SUPERIORTRAINING OF GYMNASTS AT THE STAGE OF TOP SPORTSMANSHIP
Authors: Aivazova Elena Sergeevna , Tyulkova Anastasia Yurievna
Published: September 2024

The article discusses the system of training gymnasts at the stage of highest sports mastery. Increasing competition on the world stage is driven by the complexity of the multi-structure and the ability of athletes to combine technical characteristics, special expressiveness, emotion and artistry. Therefore, an even more advanced approach to training is needed, based on the principles of individualization and further development in constantly changing conditions.
SPECIAL TAX REGIMES AS A MEASURE OF STATE SUPPORT OF SMALL AND MEDIUM ENTERPRISE IN THE RUSSIAN FEDERATION
Authors: Aleksandrova Svetlana Viktorovna , Mazikova Ekaterina Vladimirovna , Pelkova Svetlana Vladimirovna , Sokolova Evgenia Sergeevna
Published: September 2024

In Russia, in recent decades, a system of state support for small and medium-sized businesses has been actively developed and implemented. It provides for a fairly wide range of measures: financial, advisory, informational, etc. One of the priority areas of state support is tax regulation, namely the possibility of small and medium-sized businesses applying special tax regimes.
ETHICAL AND SOCIAL CONSIDERATIONS: DIGITALIZATION OF KNOWLEDGE IN THE ERA OF ARTIFICIAL INTELLIGENCE
Authors: Smetana Vladimir Vasilievich
Published: September 2024

This article is devoted to the analysis of ethical and social issues arising in connection with the digitalization of knowledge and the development of artificial intelligence (AI). It addresses key issues such as data privacy, algorithmic bias, unequal access to knowledge, and the potential for misuse of artificial intelligence. Special attention is paid to the social consequences of the widespread access of artificial intelligence to huge amounts of digitized knowledge, including the risks of concentration of power, mass automation of labor and changes in the dynamics of decision-making. In conclusion, the need for a responsible and ethical approach to the digitalization of knowledge and the development of artificial intelligence is emphasized in order for these technologies to serve the benefit of the entire society.
36-55 YOSHDAGI ERKAKLARDA ARTERIAL GIPERTENSIYAGA TREKRESAN TA'SIRI
Authors: Golovanov Sergey Alexandrovich
Published: September 2024

60 male patients aged from 36 to 55 years with a systolic blood pressure level in the range of 150-155 mm Hg were examined. Art. All patients received basic therapy with enalapril 5 mg per day. In addition to basic therapy, patients with hypertension received trecrezan at a dose of 600 mg/day on day 21 of the 2nd course for 6 months. Trecrezan improved hemodynamics.

Sistolik qon bosimi darajasi 150-155 mm Hg oralig'ida bo'lgan 36 yoshdan 55 yoshgacha bo'lgan 60 nafar erkak bemor tekshirildi. Art. Barcha bemorlar kuniga 5 mg enalapril bilan asosiy terapiya oldilar. Asosiy terapiyadan tashqari, gipertoniya bilan og'rigan bemorlar 6 oy davomida 2-kursning 21-kuni 600 mg / kun dozada trekrezan oldi. Trekrezan gemodinamikani yaxshiladi.
SHAHARLARDA BEGONA O'TLARNI O'RGANISH
Authors: Vasileva Mariia Pavlovna , Vasileva Tatyana Nikolaevna , Ryabinina Zinaida Nikolaevna
Published: September 2024

The article contains the results of research, which was performed on the territory of sanitary and protective and residential zones of Orenburg. The obtained data indicate a high adaptability of plants to specific local conditions. 43 species of vascular plants have been found in the flora of the area, and among the collected species there are weed-field plants that cause an allergic reaction in the townspeople.

Maqolada Orenburgning sanitariya-himoya va turar-joy zonalari hududida olib borilgan tadqiqotlar natijalari keltirilgan. Olingan ma'lumotlar o'simliklarning o'ziga xos mahalliy sharoitlarga yuqori moslashuvidan dalolat beradi. Hudud florasida qon tomir o'simliklarning 43 turi topilgan bo'lib, to'plangan turlar orasida shahar aholisida allergik reaktsiyaga sabab bo'lgan begona o't-dala o'simliklari mavjud.
DEVELOPMENT OF EARLY READING TEACHING COMPETENCE FOR PRESCHOOL TEACHERS THROUGH TRAINING IN MAKING READING CARDS FROM USED MATERIALS
Authors: Zainab Syarifah , Aridhona Julia , Amalia Hanna
Published: September 2024

Early Childhood Education Programs teachers (PAUD) should have high creativity in developing their students' teaching competence, this is because PAUD students have very high imagination. However, the limited knowledge and teaching facilities of PAUD teachers, especially those who teach in the regions, mean that PAUD teachers run out of ideas for developing teaching creativity. One of the teaching competencies of PAUD teachers is providing interesting and fun learning media for students. Several types of training that have been provided by teachers have only been attended by representatives from each PAUD, so that the information and knowledge obtained is not evenly shared by all PAUD teachers in the region. Referring to this problem, the community service activity that will be carried out is to create an innovation training in making learning media for early reading cards (flashcards) to improve the competence of teaching early reading for PAUD teachers. The location of this activity will be in Lampanah Teungoh Village, Aceh Besar. The output target to be achieved is that teachers master the material well, understand the material and are able to apply it to students. Apart from that, participants are able to create their own early reading learning media and are able to teach it to students. Keywords: Teaching Competency; PAUD Teacher; Learning Media; Early Reading
Formando Madres Primigestas: Tamizaje Metabólico Neonatal
Authors: Moreno Llano Cecibel Carolina , Castillo Castillo Maidely Yomara , Vera-Quiñonez Sara
Published: September 2024

El cribado o tamizaje metabólico neonatal detecta enfermedades congénitas que afectan al metabolismo del recién nacido, pudiendo causar graves problemas de salud y riesgo de muerte. Objetivo: Fomentar prácticas efectivas y aumentar la conciencia sobre la importancia del tamizaje metabólico neonatal mediante una intervención educativa de enfermería dirigida a madres primigestas en dos centros de salud. Metodología: Se realizó un estudio descriptivo y transversal con una población de 50 madres primigestas. La intervención educativa se desarrolló en cuatro fases: diagnóstico de conocimientos, plan de acción para una charla transformativa, formación de madres informadas y evaluación del aprendizaje. Resultados: Antes de la intervención educativa, el 62% de las encuestadas no entendía la definición de tamizaje metabólico neonatal, el 72% no conocía el momento adecuado para realizarlo y el 64% desconocía el tiempo necesario para obtener los resultados. Tras la intervención, se evidenció una mejora significativa en el nivel de conocimiento de las madres. Conclusión: El diagnóstico de Conocimiento, reveló una notable brecha en el entendimiento sobre el significado del cribado neonatal, el momento adecuado para realizar esta prueba y las condiciones bajo las cuales el recién nacido debe ser sometido al tamizaje.
Problematización, Estado del Arte y Categorías desde un Horizonte de Intelegibilidad
Authors: Madrigal Segura Rubén
Published: September 2024

El artículo deriva de una investigación más amplia con referente empírico y para este escrito tenemos como objetivo reflexionar sobre la problematización y su parte central el estado del arte para la construcción de categorías que requiere una investigación educativa desde el pensar epistémico como horizonte de intelegibilidad, lo que nos lleva a ver la realidad como apertura y evitar dar contenido a las categorías. La metodología utiizada para la construcción del estado del arte es la propuesta de Jiménez (2014 y 2017) que consta de tres fases las cuales son la heurística utiizada para la búsqueda y selección de información, la hermenéutica que sirve para analizar e interpretar la información de los trabajos seleccionados en la fase anterior y la holística que se refiere a la forma de integrar la información relevante para la investigación. Los principales resultados son tres categorías iniciales, sin dar contenido a las mismas, las cuales son desarrollo institucional deriberativo, cultura del acontecimiento escolar y reconfiguración docente, las cuales requieren trabajarse para que respondan al recorte de realidad que se pretende conocer. El siguiente momento de la investigación es el teórico con el cual se pretende dar contenido a dichas categorías.
Aplicación de Estrategias de Marketing Digital para Atraer A Estudiantes en Educación Superior
Authors: Caizaluisa Naranjo Darwin René , Byron Santiago Cóndor Chano , Jessica Beatriz Gómez Torres , Vinueza Burgos Francisco David , Casagallo Lugmaña Erik Mauricio
Published: September 2024

Las estrategias de marketing digital son la variable independiente en esta investigación. Estas estrategias incluyen una variedad de tácticas y herramientas que se utilizan para mejorar la visibilidad de la institución y captar el interés de los estudiantes potenciales. El enfoque de la investigación será mixto, integrando tanto cuantitativo como cualitativo. El enfoque cuantitativo se centrará en medir el impacto de las estrategias de marketing digital mediante la recolección y análisis de datos numéricos. Se realizaron encuestas a estudiantes potenciales, estudiantes actuales y expertos en marketing. La investigación reveló que las estrategias de marketing digital, especialmente en redes sociales y contenido visual, son altamente efectivas para atraer estudiantes potenciales a instituciones de educación superior. La mayoría de los encuestados (60%) vio anuncios educativos con frecuencia en redes sociales, y el 40% hizo clic en ellos. Los videos fueron el contenido más atractivo (50%), seguido de artículos y testimonios. Los anuncios en redes sociales fueron considerados efectivos o muy efectivos por el 50% de los estudiantes. Además, la reputación de la institución (33.3%) y la oferta académica (26.7%) fueron factores clave en la decisión de inscripción. Los actuales estudiantes indicaron que la publicidad en redes sociales (40%) y las recomendaciones (30%) fueron las principales fuentes de información sobre su institución.
Electrical Load Forecasting using a Novel BI-GRU Encoder Decoder Model
Authors: Gaber Ahmed , H. Aly Hesham , Ghatwary Noha , K. Abdelsalam Ahmed
Published: September 2024

Precisely forecasting electrical load, especially through univariate time series analysis, is pivotal for effectively operating and planning power systems. This research introduces a hybrid model leveraging univariate time series and deep learning techniques. The model combines the Bidirectional Gated Recurrent Units (Bi-GRU) based encoder-decoder structure with the Convolutional Neural Network-Long Short-Term Memory (CNN-LSTM) architecture to enhance single-step short-term electrical demand forecasting. Integrating Bi-GRUs ensures adept capture of temporal dependencies, while CNNs meticulously extract spatial features. Concurrently, LSTMs provide a robust mechanism to memorize long-range dependencies. The model's competence was rigorously assessed through evaluations using the publicly available American Electric Power (AEP) dataset, which represents real-world electrical load patterns. Findings highlight that the proposed model outstrips competing models in algorithmic stability and prediction accuracy. With a Mean Absolute Percentage Error (MAPE) of 80.032, this research posits a promising avenue for utilizing deep learning in univariate time series power load prediction.
Using Glucose as Protein Remover from Rubber Films with One Pot Method
Authors: Rueangsen Jedsada , Kiratitanavit Weeradech
Published: September 2024

One of Thailand’s important agricultural products, particularly in the south, is high ammonia natural rubber latex (HANR) concentrate. Numerous products, including dip-moulded products, rubber films, and foams, are made with this latex. The protein content inside latex is one issue that may happen when using it. This is because those who have contact with rubber products can get allergic reactions as the result of these proteins. Before using latex, these proteins are typically removed in the form of latex. In order to digest these proteins, both chemicals and enzymes may be used. It is very rare to remove protein with a solid rubber product. In this study, raw rubber films were used to deproteinize employing a simple one-pot technique using glucose as protein remover. Glucose was used at a various concentration of 0, 5, 10, 15, and 20 phr by mixing with HANR. The films were subsequently produced by casting, dried, and then submerged in water for glucose leaching. A preliminary analysis of the chemical structure using the FTIR technique demonstrated in removing glucose from the rubber. According to a comparison of deproteinization determined by using total nitrogen analyser between the removal of protein in latex with EDTA solution combined with high-speed centrifugation technique as basic method and the use of glucose, the amount of protein removed in the first method was around 80%, whereas the use of glucose is over 50%. Water absorption, light transmission, as well as opacity and morphological characteristics, are further characteristics that use to compared between rubber film properties made by both deproteinization methods. It was found that the films produced using EDTA performed better than those produced with glucose to remove protein, but not considerably better. Meanwhile, both techniques of protein removal did not significantly affect the produced rubber films mechanical characteristics. The explanation for using glucose to remove protein from rubber as well as the findings will be discussed in more details in this research work.
Fluid Flow Analysis on Artificial Mangrove Root Model for Marine Litter Trapping
Authors: Tan Yu Feng , Enes Zalman Eimran Zhariff , Tan Lit Ken , Asako Yutaka , Lee Kee Quen , Kang Hooi Siang , Chuan Zun Liang , Idris Muhammad , Lai Kok Yee , Kok Chee Hoo , Gan Yee Siang , Tey Wah Yen
Published: September 2024

Plastic pollution is a pressing issue that has affected not only the oceans and rivers but also the coastal region. While studies have been conducted to determine the pollution in mangrove forests, still little can be done to reduce the pollution issue. The intricate network of mangrove root systems contributes to this issue. This study aimed to create and analyse artificial mangrove root models by using 3D-printed models and Computational Fluid Dynamics (CFD) simulations. The models, with varying porosity levels, were tested for their ability to reduce water flow and capture debris. The results showed that the model with higher porosity (94.5%) exhibited reduced flow attenuation and delayed wake formation compared to the model with lower porosity (75.1%). Tidal wave tank experiments confirmed that higher porosity consistently led to higher debris trapping percentages, regardless of debris mass, size, or type. The increased porosity reduced flow interaction and turbulence, enhancing the effectiveness of debris trapping. These findings contribute to developing more efficient artificial mangrove systems that can effectively mitigate debris transport and accumulation in aquatic environments.
Simulation of Torque, Tip Speed Ratio, Power, and Power Coefficient of 1 MW Horizontal Axis Wind Turbine in Modified NACA 4412-2412 Variation of Airfoil Blades
Authors: Kriswanto Kriswanto , Munir Mohammad Misbachul , Al-Janan Dony Hidayat , Anis Samsudin , Naryanto Rizqi Fitri , Hangga Arimaz , Sumbodo Wirawan , Rusiyanto Rusiyanto , Setiyawan Andri , Bahatmaka Aldias , Sukoco Imam , Basyirun Basyirun , Al Afkar Naufal Baihaqi , Jamari Jamari
Published: September 2024

The rotor power of HAWT can be affected by the type of airfoil and airfoil modifications on a blade. However, no study of wind turbine blades from arranges types of airfoils or altering the leading and trailing edges has been conducted. To determine the maximum torque, TSR, power, and power coefficient values at Horizontal Axis Wind Turbine (HAWT) 1MW, simulations of turbine blades with various airfoil designs are performed. NACA 4412 and 2412 airfoils were utilized, with the leading and trailing edges modified. The method used is Blade Element Momentum simulation on 20 blade variations with modified NACA airfoils. The HAWT simulation parameters use the specifications of a 1MW wind turbine with a blade radius of 54m, wind speed of 7 m/s, number of blades 3. Due to the aerodynamic simulation results, the percentage error between the CFD from the other study and the BEM values is only 2.6%. The blade code that produces high torque on the HAWT is 4T-4LT (4412 TE mod-4412 LE-TE mod). The high torque value is influenced by the lift and drag coefficients. High torque does not usually imply high power; rather, the TSR as a function of angular speed determines this. The angular speed of a horizontal axis wind turbine is visibly affected by the aerodynamics of the rotor blade. C4412-2412 group combination blade designs, particularly blade codes 4L-2LT, 4T-2LT, 4LT-2L, 4LT-2T, and 4LT-2LT, can produce more than 1MW. The highest TSR, power, and coefficient power of HAWT was obtained from blades with circular foil segments 1 and 2, segments 3 to 9 using NACA 4412 LE-TE mod airfoil, and segments 10 to 11 using NACA 2412 LE-TE airfoil. Although the difference is slight (0.20%), the combination of modified trailing and leading edge NACA 4412 and 2412 airfoils outperforms modified leading edge airfoils alone.
Benchmark Study of KP505 Propeller on the Performances of Indonesian Traditional Fishing Vessel Propulsion by using OpenFOAM
Authors: Aldias Bahatmaka  , Deni Fajar Fitriyana  , Samsudin Anis  , Rizki Setiadi  , Kriswanto  , Al-Janan Dony Hidayat , Maulana Sonika , Syafei M. Hilman Gumelar , Darsono Febri Budi , Aditya Rio Prabowo  , Samuel Samuel  , Rifky Ismail  , Teguh Muttaqie  , Achmad Yanuar Maulana  , Mamad Tamamadin  , Sang Won Lee  , Joung Hyoung Cho
Published: September 2024

The strategy of design engineering is very important to produce the modernization of technology. The propeller is one of crucial part in the marine design especially for the marine transportation especially for traditional fishing vessel. In this paper, presents a study for analysis of the propeller performance by using numerical simulation in the computational fluid dynamics (CFD). Since the development of CFD simulation, still facing several problems to solve the CFD analysis. The OpenFOAM is open source CFD tool used in this study in order to investigate the propeller performances. OpenFOAM is implemented for open water performances of KCS propeller (KP505). Reynold-averaged Navier Stokes equations (RANS) was applied to estimate the turbulence of K-w SST model. Unstructured mesh in this simulation was employing a hexahedral mesh as mesh generation. The multiple rotating frame (MRF) was produced as method to analysis of propeller performances. The velocity inlet and pressure outlet were put for inflow and outflow boundaries. The wall was set to a far-field boundary. The current study compared to the experimental result for the thrust and torque coefficient to validate the propeller performances. By using MRF technique, the simulation of interaction for the propeller with a relative error less than 2%. Thus, The MRF technique can be used for the practical technique to simulate the ship propeller model especially for the moving multiple zones.
Hot Extraction of Curcuma xanthorrhiza and its Application as Textile Natural Dyes
Authors: Kusumastuti Adhi , Sholihah Nuroh Ilmiatus , Kamis Arasinah
Published: September 2024

This study explored the utilisation of Curcuma xanthorrhiza extract as a natural dye for cotton fabric, assessing its effects on colour intensity and colour permanence. The study utilised different mordanting techniques, such as pre mordanting, meta mordanting, and post mordanting, using ferrous sulphate, soda ash, and alum. The colour strength data demonstrated different levels of efficacy, with meta mordanting displaying the most profound and vibrant coloration, followed by post mordanting and pre mordanting. The results exhibited exceptional colour fastness when using ferrous sulphate as a post mordant, whereas pre mordanting and meta mordanting generated very good results. The colour fastness of dyed cotton fabric is directly influenced by the mordanting processes. The sequence of colour fastness, ranging from exceptional to very good, highlights the importance of mordanting in enhancing the stability and durability of the fabric. The interactions of Curcuma xanthorrhiza extract, mordants, and cotton fabric during the mordanting processes is crucial in governing the intensity of colour and its colourfastness. The findings provided useful information on the potential of Curcuma xanthorrhiza extract as a natural dye for cotton textiles, presenting a sustainable and promising alternative in the field of textile dyeing.
Impact of Variable Fluid Properties on the Peristaltic Flow of Eyring-powell Fluid through Porous Medium: Applications to Hemodynamics
Authors: Prathiksha Prathiksha , Manjunatha Gudekote , Choudhari Rajashekhar , Vaidya Hanumesh , Prasad Kerehalli Vinayaka
Published: September 2024

The main focus of this study is to examine the peristaltic behaviour of an Eyring-Powell fluid within a non-uniform porous channel. The investigation focuses on comprehending the characteristics of the channel walls that impact the fluid dynamics. By incorporating the convective boundary conditions into the series Perturbation method, solutions for the governing non-linear equations on velocity, temperature, and stream function are obtained. The study improves accessibility through parametric assessment, and the results are shown graphically using MATLAB R2023a software. Significant insights are obtained from the study, especially concerning natural phenomena such as blood flow in tiny arteries, which may be used for management or intervention in dysfunctional situations. The investigation results show that fluid characteristics are greatly affected by porous parameters and different viscosities. Also, fluid flow improves as the porous parameter increases, i.e., Darcy number. The enhancement in the convective heat and mass transfer coefficient decreases the temperature and concentration of the fluid, respectively.
Effects of Mesh Number and the Time-step-based Parameter on the Accuracy of Couette Solution
Authors: Zulkapri Ladyn , Abdullah Aslam , Ariffin Ahmad Hamdan
Published: September 2024

Couette flow, a flow between two parallel plates with one plate in motion and the other stationary, has been extensively studied and applied in vaCouette flow, a flow between two parallel plates with one plate in motion and the other stationary, has been extensively studied and applied in various engineering and scientific fields. However, optimizing the accuracy of numerical solutions for such a flow is always a challenge. In this study, we focus on a quasi-1-dimensional Couette flow to investigate the impact of mesh number and the time-step-based parameter on the accuracy of the numerical solution. The Crank-Nicolson finite difference method is employed to solve the corresponding equation. The results suggest that the error linked to the unsteady Couette solution increases as the number of intervals rises. However, increasing the time-step-based parameter, has the potential to reduce the error, although it may lead to a simultaneous increase in the likelihood of oscillation. The findings can be leveraged in real applications to enhance the accuracy, efficiency, and reliability of computational simulations for improving the quality of the results, making informed decisions, and advancing the state of the art in respective fields.rious engineering and scientific fields. However, optimizing the accuracy of numerical solutions for such a flow is always a challenge. In this study, we focus on a quasi-1-dimensional Couette flow to investigate the impact of mesh number and the time-step-based parameter on the accuracy of the numerical solution. The Crank-Nicolson finite difference method is employed to solve the corresponding equation. The results suggest that the error linked to the unsteady Couette solution increases as the number of intervals rises. However, increasing the time-step-based parameter, has the potential to reduce the error, although it may lead to a simultaneous increase in the likelihood of oscillation. The findings can be leveraged in real applications to enhance the accuracy, efficiency, and reliability of computational simulations for improving the quality of the results, making informed decisions, and advancing the state of the art in respective fields.
Dust Grain Properties in Extragalactic Environment Through Supernovae Dust Polarization Observations
Authors: Singh Saikhom Pravash , Soam Archana
Published: September 2024

Dust polarization observations of starlight at multi-wavelengths helps us to find maximum polarization, P
max and the corresponding wavelength,

λ

max

. This

λ

max

is approximately proportional to average grain size, thereby helping to reveal grain sizes in the intervening medium. We study the average grain sizes in different host galaxies of 4 Type Ia and 10 Type II supernovae through spectropolarimetric observations at multi-wavelengths and compare with the average grain sizes in the diffused interstellar medium of our galaxy. We use archival P
max,

λ

max

and width of peak of polarization curve (K) values from the literature. We plot P
max versus

λ

max

in color scale that represents K and find that grain sizes of some of the galaxies are smaller, some nearly comparable and some larger than typical grain size (≈5500 Å) of our galaxy. This gives us an insight into the different grain properties especially their sizes in external galaxies compared to our galaxy.
Does insulin-like growth factor-I level associate with pregnancy outcomes in primary and secondary infertile women undergoing in vitro fertilization? A prospective cohort study
Authors: Salahuddin Huma , Rehman Rehana , Rehman Sadia , Sarfraz Muhammad Raza , Rafiq Raheela , Rehman Fatima
Published: September 2024

Background: Infertility, which affects 8%–12% of couples worldwide and 21.9% of couples in Pakistan in particular, is a major reproductive health issue. In vitro fertilization (IVF) has emerged as a prevalent therapeutic intervention. Recent studies have identified insulin-like growth factor-I (IGF-I) as a promising biomarker for assessing embryo viability and predicting implantation outcomes in IVF procedures.

Objective: To evaluate the relationship between IGF-I levels and IVF outcomes in women with primary and secondary infertility.

Materials and methods: This prospective cohort study included 133 infertile women (99 with primary infertility and 34 with secondary infertility) aged 20-45 years. IGF-I levels were measured using an ELISA kit. Participants were grouped based on infertility type and cause of infertility. Statistical analyses included the Mann-Whitney U test, Pearson chi-square test, Kruskal-Wallis test, and Pearson correlation coefficient.

Results: Women with secondary infertility had significantly higher IGF-I levels compared to those with primary infertility (279.40±85.89 ng/ml vs. 239.11±74.55 ng/ml, p=0.02). Male factors were the predominant cause of infertility in both groups. Patients with male-factor infertility had the highest IGF-I levels (267.1±77.6 ng/ml). Significant positive correlations were found between IGF-I levels and the number of oocytes fertilized (r=0.398, p<0.01), oocytes retrieved (r=0.326, p<0.01), oocytes at metaphase II (r=0.386, p<0.01), and cleaved embryos (r=0.369, p<0.01).

Conclusion: This study demonstrates a positive correlation between IGF-I levels and various IVF outcomes. Higher IGF-I levels were associated with improved oocyte retrieval, fertilization, and embryo development.
Reliability of Moyer’s and Tanaka Johnston’s prediction methods in a non-Caucasian heterogeneous population – a cross-sectional study
Authors: Barkavi Panchatcharam , Iqbal Mohamed , Gandhi Priyanka , Sivakumar Harishma , Mathivanan Kavitha , Thirivikhraman Kothandaraman
Published: September 2024

Introduction: Mixed dentition analyses are used to determine possible tooth-size and arch-length discrepancies during the transition from primary to permanent dentition. Prediction methods using a probability table or linear regression equation use the sum of the mesiodistal widths of mandibular permanent incisors to predict the mesiodistal width of unerupted permanent teeth. Racial and sexual variations and sexual dimorphism in tooth size have been reported. The objective of this study is to validate Moyer’s and Tanaka Johnston’s mixed dentition analyses in a contemporary South Indian population.

Materials and methods: 100 pairs of permanent dentition models belonging equally to both sexes with an age range of 12–21 years comprised the sample in which both analyses were done. The predicted width of permanent canines and premolars was compared to the actual width in the study models.

Results: There was a statistically significant difference between the two values for Moyer’s analysis in the mandibular teeth of females (p=0.04), 95% CI −0.605 to −0.969. There was a statistically significant difference between the two values for Tanaka Johnston’s analysis of maxillary teeth (p=0.001), 95% CI 0.863 to 1.370.

Conclusions: Moyer’s analysis shows a statistically significant underestimation in the mandibular arch of females. Tanaka Johston’s analysis shows a statistically highly significant overestimation in the maxilla. Both analyses cannot be reliably applied to the South Indian population.
Stromatolinea, a new diatrypaceous fungal genus (Ascomycota, Sordariomycetes, Xylariales, Diatrypaceae) from China
Authors: Habib Kamran , Zhou Xin , Zeng Wenyu , Zhang Xu , Hu Hongmin , Wu Qianzhen , Liu Lili , Lin Yan , Shen Xiangchun , Kang Jichuan , Li Qirui
Published: September 2024

Molecular phylogeny and morphological characteristics of collections of diatrypaceous fungi from Guizhou Province, China, lead to the establishment of a new genus, Stromatolinea, and the identification of four new species and two new combinations. The taxa were found growing on the dead culms of Phyllostachys bamboo. The new genus is distinguished by its well-developed, discrete linear stromata with yellow interior tissue and allantoid subhyaline ascospores. The newly described species are Stromatolinea grisea, S. guizhouensis, S. hydei, and S. xishuiensis. Additionally, two new combinations, Stromatolinea linearis and S. phaselina, are proposed based on comparative analysis and morphology. Phylogenetic analyses were conducted using ITS and TUB2 sequences. The study includes comprehensive morphological descriptions, illustrations, and a phylogenetic tree depicting the placement of the new taxa.
Le développement des gestes professionnels dans l'enseignement du français
Authors: Bucheton Dominique
Published: September 2024

Résumé Est retracé ici le parcours intellectuel de quelques chercheurs interrogeant aujourd’hui la nécessité de professionnaliser les approches de la didactique du français et proposant pour ce faire de s’intéresser aux gestes professionnels des enseignants.
Le développement des gestes professionnels dans l'enseignement du français
Authors: Bucheton Dominique , Brunet Lisa-Marie , Dupuy Catherine , Soulé Yves
Published: September 2024

Résumé Après avoir développé succinctement le modèle théorique des gestes professionnels et leurs ajustements, une première étude sur des séances comparées de lecture au CP en ZEP illustre l’idée selon laquelle l’efficience des enseignants se joue dans leurs ajustements plus ou moins réussis et dans les logiques profondes qui orientent ces ajustements. L’analyse comparative de deux séances de littérature pose la question de l’orientation structurante des configurations de gestes en formulant l’hypothèse que les ajustements structurants le sont parce qu’ils sont orientés consciemment. Enfin nous montrons comment ce regard nouveau et plus précis, au niveau des ajustements didactiques très spécifiques, permet de repérer ce qui distingue une lecture littéraire d’un texte d’une lecture philosophique d’un même texte littéraire. Permet aussi de repérer les gestuelles communes de ces deux didactiques en émergence à l’école primaire et quelques-uns des problèmes didactiques spécifiques que leur comparaison fait apparaître.