bluuebunny/crossref_metadata_2025 huggingface dataset:
Модульное радиовещание в ВЧ диапазоне
Authors: В.А. Ружников , М.Ю. Сподобаев , Ю.М. Сподобаев
Published: November 2024

Статья актуализирует проблему восстановления дальнего радиовещания в диапазоне ВЧ. Предметом исследований является оборудование и антенны, формирующие ионосферный радиоканал. Цель – предложить принцип организации и разработать облик оборудования радиовещания. Предложен модульный принцип, позволяющий в кратчайшие сроки начать радиовещание. Основу радиовещательного модуля составляет поворотная синфазная антенна СГД РА, которая дополняется отсеком с генераторным оборудованием, диаграммообразующей схемой, системами управления и питания.

The article actualizes the problem of restoration of long-range radio broadcasting in the HF range. The subject of research is equipment and antennas that form an ionospheric radio channel. The goal is to propose a principle of organization and develop the appearance of radio broadcasting equipment. A modular principle is proposed that allows radio broadcasting to begin in the shortest possible time. The basis of the radio broadcasting module is a rotary in-phase antenna SGD RA, which is supplemented by a compartment with generator equipment, a diagram-forming circuit, control and power supply systems.
Повышение помехоустойчивости системы передачи данных с помощью дифференциальных синхронных усилителей на паре комплементарных МОП-транзисторов
Authors: Т.А. Фан
Published: November 2024

Подробно рассмотрена работа и характеристики дифференциального усилителя на паре комплементарных МОПтранзисторов, с помощью которого можно снизить уровень фазового шума в системе передачи данных фазовой модуляции. Выполнены моделирования расчетов зависимости от частоты выходного дифференциального сигнала усилителя и коэффициентов передачи разностного и синфазного сигналов. Предложен новый метод компенсации фазового шума, основанный на дифференциальном усилителе на паре комплементарных МОП-транзисторов. Основное внимание уделяется анализу диаграммы созвездия, которое показывает устойчивость системы связи к фазовому шуму. С помощью диаграмм созвездий цифровые системы связи могут быть диагностированы на наличие ошибок передачи данных. Дифференциальный усилитель на паре комплементарных МОП-транзисторов уменьшает вращение созвездия сигнала на выходе, что означает возможность подавления фазовых шумов. Ключевые слова: дифференциальный усилитель, фазовой шум, помехоустойчивость, комплементарные МОП-транзисторы, фазовая модуляция.

The operation and characteristics of a differential amplifier on a pair of complementary MOSFETs, which can be used to reduce the phase noise level in a phase modulation data transmission system, are considered in detail. Simulations of calculations of the dependence on the frequency of the output differential signal of the amplifier and the transmission coefficients of the difference and in-phase signals were performed. A new phase noise compensation method based on a differential amplifier on a pair of complementary MOSFET transistors is proposed. The main focus of this study is to analyze the constellation diagram, which shows the robustness of the communication system to phase noise. Using constellation diagrams, digital communication systems can be diagnosed for data transmission errors. A differential amplifier on a pair of complementary MOSFET transistors reduces the constellation rotation of the signal constellation at the output. This means that the amplifier under study will provide phase noise suppression capability.
Antimycotic Activity of in silico Validation of Bioactive Compounds of Roccella montagnei Bel. against Clinically Isolated Onychomycosis Fungus Trichophyton mentagrophytes
Authors: Giri Monalisha , Parida Sagarika
Published: November 2024

Dermatophytes are the most common slow growing contagious agents of cutaneous mycosis and persist as a significant public health issues despite of the availability of a number of antifungal medications. Trichophyton mentagrophytes is one of the fungal species which influences the dermatophytic diseases. A wide range of clinical dermatophytosis such as tinea barbae (beards), tinea captis (scalp), tinea corporis (ring worm of the body), tinea faciei (face), tinea manuum (hand), tinea inguinalis (jock itch), tineaunguium or onychomycosis (nail unit),paronychia (proximal and lateral folds of fingernails, toenails and tissue borders sides and root of nail), tinea pedis (feet) and tinea cruris (pubic region) could be produced by this pathogenic species depending on the affected parts. Generally, terbinafine, is used to treat dermatophytosis induced by Trichophyton species. In most of the cases, synthetic anti-mycotic drugs fail over time resulting in development of resistant strains. Sustainable use of herbal sources has been recognised as novel therapeutic drugs to treat dermatophytic disorders. However, few reports are available on antimycotic activity of lichen species. Therefore, in this study, lichen species such as Roccella montagnei Bel. was collected from prime locality of Bhubaneswar, Odisha. Antifungal potency of ethanol and methanol extractives of R. montagnei Bel. was screened by disc diffusion method against the clinical isolates of T. mentagrophytes. The overall study resulted with a positive output and validated through in-silico database. Hence the entire study is based on biomedical evaluation and sustainable use of natural plant supplements for the benefit of human society.
Production of Ti3C2Tx with Freeze Dryer, Investigation of Characteristics and Effect on Lithium-Ion Battery Capacity
Authors: Ekici Mesut Ramazan , Bulut Emrah , Atasoy Ahmet
Published: November 2024

A today, requests, rules, and sanctions for decreasing the use of hydrocarbon energy resources have become the common goal of all countries. Awareness of this issue is increasing daily. Studies on alternative energy sources, especially renewable energy, have come to the fore, and storing energy has been a major focus. For this purpose, new-generation material requirements have arisen. The new generation of nano and 2D materials (quantum, antimatter, graphene) developed in materials science, especially in computers, photovoltaics, and energy/batteries, have made some imaginary products feasible and applicable that once used to considered impossible. In the Ti-Si-C material system, which has drawn the most attention in the MAX phase material family, 312 structures were selected. The raw powder samples were then characterized. The A layer removal in the MAX structure and the formation of MXene and Ti3C2Tx in the new structure were synthesized by chemical exfoliation in different environments and conditions. It affects the surface finishes (-O,-OH, and-F) and the conductivity properties of MXenes. The MXene sample obtained after etching with hydrofluoric acid was intercalated with dimethyl sulfoxide (DMSO). Following this process, it was observed that sonication changed the powder morphology. In particular, drying with a freeze dryer for the first time yielded better results. The best results were obtained from samples produced with DMSO and freeze-dried after 48 h. MXene powder was used as the active ingredient in the electrode fabrication. CR2032 standard battery was fabricated using the obtained electrodes. The MXene obtained by the freeze-drying method positively affected battery performance.
Hubungan Efikasi Diri dengan Resiliensi Akademik pada Siswa SMA Kristen 1 Kupang
Authors: Tarong Ursula Salome , Geradus Uda , Korohama Katharina E. P. , Apriliana I Putu Agus
Published: November 2024

Students are expected to have high self-efficacy. Self-efficacy is a person’s belief in his ability to overcome various situations that arise in his life. Self-efficacy plays an important role in increasing student academic resilience. However, there are still students who procrastinate in submitting assignments, have difficulties dealing with demands or pressure in the learning process, and are less able to adapt to obligations in the academic process at school. This research uses a quantitative approach with a descriptive correlation research type. This research was conducted with a total population of 162 students and a sample of 45 students with a proportionate stratified random sampling method. The data was collected through a questionnaire on self-efficacy and academic resilience. The analysis techniques included descriptive and correlational analysis with the SPSS version 26 program. Our findings show that (1) the self-efficacy of students was in the secure category, with a percentage of 56%, (2) the academic resilience of students is in the strong category with a percentage of 53%. (3) Product moment correlation analysis shows that self-efficacy and academic resilience have a significant correlation with a p-value of 0,002. The Pearson correlation is 0,454, which can be said that the degree of relationship is strong with r-table is 0,301. Hence, it can be interpreted that self-efficacy has a strong relationship to academic resilience in Christian High School students.
ТРАНСПОРТНАЯ СИСТЕМА РЕСПУБЛИКИ БАШКОРТОСТАН В КОНЦЕПЦИИ СХЕМЫ ТЕРРИТОРИАЛЬНОГО ПЛАНИРОВАНИЯ РЕГИОНА: СОВРЕМЕННЫЕ ГЕОГРАФИЧЕСКИЕ ПРОБЛЕМЫ И НАПРАВЛЕНИЯ ПРОСТРАНСТВЕННОГО РАЗВИТИЯ
Authors: П.М. Крылов
Published: November 2024

Исследование посвящено изучению роли транспортной системы Башкортостана в разрабатываемой АО «Гипрогор» концепции развития Республики Башкортостан. Выявлены и проанализированы основные проблемы пространственного развития территории. Дифференциация муниципальных образований Республики Башкортостан по пространственно-планировочной организации территории. Основная задача в области транспортной инфраструктуры состоит в решении проблемы улучшения внутренней транспортной связности территории Республики Башкортостан, благодаря чему внутрирегиональные транспортные потоки будут доминировать над транзитными и трансграничными. При решении этой проблемы будет достигаться дополнительный экономический эффект за счёт повышения доли добавленной стоимости, которая останется в пределах Республики Башкортостан. Это связано с преодолением нынешней ситуации, при которой периферийные городские округа и муниципальные районы республики в значительной степени ориентированы на трудовую миграцию в соседние субъекты РФ. Показан перспективный каркас развития территории региона.

The research is devoted to studying the role of Bashkortostan's transport system in the concept of the Republic of Bashkortostan's development being elaborated by Giprogor JSC. The main problems of spatial development of the territory are identified and analyzed. Differentiation of municipal formations of the Republic of Bashkortostan on spatial-planning organization of the territory is carried out. The main task in the field of transport infrastructure is to solve the problem of improving the internal transport connectivity of the territory of the Republic of Bashkortostan, thanks to which intra-regional transport flows will dominate over transit and transboundary ones. When solving this problem, an additional economic effect will be achieved by increasing the share of added value that will remain within the Republic of Bashkortostan. This is connected with overcoming the current situation, in which peripheral urban districts and municipal districts of the republic are largely focused on labor migration to neighbouring subjects of the Russian Federation. The prospective framework of development of the region's territory is shown.
ПЕРВАЯ НАХОДКА АДВЕНТИВНОГО ВИДА MUTINUS RAVENELII (BERK. & M.A. CURTIS) E. FISCH., 1888, (BASIDIOMYCOTA, AGARICOMYCETES, PHALLALES, PHALLACEAE) НА ТЕРРИТОРИИ УДМУРТИИ
Authors: М.Н. Загуменов , А.В. Рубцова
Published: November 2024

В ходе микологических исследований в августе 2024 года на территории Завьяловского района и г. Воткинска Удмуртской Республики был обнаружен адвентивный вид Mutinus ravenelii. Вид является новым для микобиоты Удмуртии. Приводятся данные по биологии и распространению вида, описание обнаруженных популяций.

Inthe course of mycological research in August 2024, Ravenel's red stinkhorn (Mutinus ravenelii) was discovered on the territory of the Zavyalovsky district of the Udmurt Republic and Votkinsk sity. The species is new to the mycobiota of Udmurtia. Data on the biology and distribution of the species and a description of the discovered populationsare provided.
FECHAM-SE RUAS E ABREM-SE PARAÍSOS: OS LOTEAMENTOS FECHADOS E A REPRODUÇÃO DESIGUAL DO ESPAÇO NA CIDADE DE SOBRAL/CE
Authors: Albuquerque Jailson Lopes , Lopes Francisco Clébio Rodrigues
Published: November 2024

Examina-se a reprodução do espaço urbano em Sobral (CE) ante o aparecimento dos loteamentos fechados, inseridos no Bairro Renato Parente. Esse modelo habitacional chega a esse local como nova modalidade de realização do urbano, pois enseja a hierarquização socioespacial e a incorporação de terras rurais para produzir o aumento de rendas, lucros e juros. Tal tipologia residencial configura a demonstração clara de como o estrato médio procura viver em lugares periféricos da cidade, mantendo o distanciamento espacial e social em relação aos demais. Com esse intento, a pesquisa procede a uma abordagem do tipo qualitativa, louvando-se em demandas bibliográficas pertinentes, visitas de campo e entrevistas de caráter semiestruturado com incorporadores, corretores, moradores e funcionários da Prefeitura Municipal de Sobral. Portanto, a chegada dessa tipologia residencial representa a negação da cidade e do lugar, uma vez que aprofunda a segregação socioespacial. Com a expansão imobiliária, em Sobral, produziu um espaço desigual, onde tem curso uma contradição enorme na periferia, a classe média tenciona distanciar-se cada vez mais desse contorno citadino pobre.
Digital Transformation in Higher Education and Postgraduate Research Supervision in Africa: A Critique of 4IR-Based Interventions in Open Distance Education
Authors: Mhlanga David , Ndhlovu Emmanuel
Published: November 2024

The literature on student research supervision tends to readily propose 4IR-based technologies as the best possible solutions, particularly in Open Distance Education (ODE) environments without detailed empirical support and clear abstraction. While the Fourth Industrial Revolution (4IR) has revolutionized the education sector, gaining a comprehensive understanding of the diverse supervisory challenges in ODE research supervision is imperative to recommend not only appropriate 4IR-based interventions but also other response mechanisms that can support research. Drawing on critical document analysis, this paper reviews articles on research supervision selected from both academic and gray literature in Africa using key terms such as postgraduate supervision, supervision challenges, distance education, doctoral supervision, and 4IR solutions. This article identifies the key challenges and complexities of postgraduate research supervision and then critiques 4IR-based interventions to resolve these challenges. In conclusion, the use of 4IR tools is not the only solution to the identified challenges.
Intelligent Intrusion Detection Using Decision Trees and the NSL-KDD Dataset: An All-Inclusive Method for Cyber Attack Detection
Authors: Tahri Rachid , Lasbahani Abdellatif , Jarrar Abdessamad , Balouki Youssef
Published: November 2024

The rapid advancement of technology and widespread internet usage have resulted in a significant increase in cyber threats, compromising sensitive information, and posing risks to organizations. Traditional security measures are inadequate against the complex nature of such attacks, revealing the urgent need for advanced security solutions. In response, security experts are developing innovative tools that leverage artificial intelligence to enhance intrusion detection. This paper introduces a novel intrusion detection system (IDS) that uses decision tree algorithms to detect and classify anomalous network traffic patterns in real time. The system focuses on identifying four main types of attacks: Denial of Service (DoS), Probe, Root to Local (R2L), and User to Root (U2R). By analyzing normal network behavior, the IDS can detect such attacks promptly, thereby improving the overall network security and resilience. The proposed model was built on the NSL-KDD reference database and demonstrated remarkable performance, achieving an accuracy of 99.20%, precision of 95.63%, recall of 96.89%, and an F-measure of 96.14, outperforming existing methodologies. In addition, the evaluation encompasses various metrics, highlighting enhanced detection capabilities compared to traditional approaches. The incorporation of recursive feature elimination (DT-RFE) and stacking fusion significantly improves detection accuracy while reducing false positives. Overall, the proposed IDS presents a robust solution to combat evolving cyber threats, addressing the growing demand for effective and reliable cybersecurity measures.
Examining the Antecedents of Firm Attractiveness: The Role of Career Development Learning, Employer Branding, and Career Success Expectations
Authors: Sany Md. Eftakhar Rahman , Chowdhury Md. Sohel , Al Masud Abdullah , Hossain Md. Imran , Arni Nishita Jahan , Islam Mohammad Fakhrul
Published: November 2024

Through the lens of signaling theory, this study aims to develop and empirically test a theoretical model to examine how employer branding and career success expectations affect firm attractiveness, with a focus on career development learning as a moderator. Using data obtained from a sample of 302 job-seeking individuals, the research hypotheses were tested through structural equation modeling (SEM) using Smart PLS (version 4). The findings demonstrate a significant association between employer branding and career success expectations and firm attractiveness. Career development learning not only predicts firm attractiveness but also moderates the relationship between career success expectations and firm attractiveness. Despite the logical connection between career development learning, career success expectations, and company branding with firm attractiveness, there is still a dearth of empirical studies on these theoretical phenomena in job-seeking literature. This may be the first study to examine whether the role of employer branding and career success expectations in predicting firm attractiveness depend on job seekers’ career development learning. Several significant theoretical advancements and useful outcomes for HR practitioners and candidates have been explored by the study results. A few limitations and potential future study areas are discussed in the conclusion.
Confinement and its Impact on Pedagogical Continuity
Authors: Mohamed Asrar , Brahim Darraj , Brahim Maziane
Published: November 2024

This study analyzes the impact of confinement due to COVID-19 on pedagogical continuity in Moroccan primary schools. With the help of a questionnaire, consisting of 15 questions relating mainly to pedagogical continuity, the use of technological means and socio-demographic information addressed to 400 teachers. The objective of this study is to describe and analyze the impact of the closure of schools caused by the coronavirus epidemic on pedagogical continuity. The main results showed that the constraint of distance education had favored the use of digital resources and applications by teachers, also the confinement had impacted the pedagogical relationship, since the teacher-student relationship is unstructured, impossibility of doing and completing the programs.
Advances and Challenges in Arabic Handwriting Recognition: A Summary of Key Methods
Authors: Boualam Manal , Mrabti Mostafa , Elfakir Youssef , Khaissidi Ghizlane
Published: November 2024

Handwriting recognition is essential in digital archiving, automated form processing, and data entry applications. Despite advances in Optical Character Recognition (OCR) for printed text, handwritten Arabic text recognition remains a challenging task. This paper reviews the evolution of handwriting recognition methods, from early approaches such as template matching and structural analysis, to advanced statistical techniques. Recent developments in machine learning, particularly deep learning, have significantly improved recognition accuracy. Additionally, the study examines existing datasets for Arabic handwriting and underscores the importance of comprehensive datasets to enhance model performance.
Vaccination against COVID-19 and Other Infectious Diseases in the Moroccan Education System
Authors: Beqqali Nabila , Hattaf Khalid , Achtaich Naceur
Published: November 2024

Currently, vaccination plays a crucial role in the prevention and control of infectious diseases like coronavirus disease 2019 (COVID-19). This study deals with the teaching of vaccination and COVID-19 in the Moroccan education system. We first analyze the Moroccan school curriculum to find the place occupied by vaccination and COVID-19. In addition, we propose five learning activities whose objective is the mathematical modeling of infectious diseases such as COVID-19 in presence of vaccination. The results of the curriculum analysis show that vaccination and COVID-19 occupy a significant place in the Moroccan school program. The five modeling activities are rigorously established to introduce the basic concepts of mathematical modeling of the infectious diseases in mathematics education. The continuous version of the epidemic model is simulated by GeoGebra which permits the interaction between various registers of semiotic representation. The proposed activities allow interdisciplinarity between mathematics and biology, particularly for high school students. These activities allow the integration of mathematical and biological concepts in a learning situation.
Sensing Total Suspended Solid in a Large Artificial Lake Using Landsat-OLI: A Case Study in Gajah Mungkur Reservoir, Indonesia
Authors: Setiawan Fajar , Nurhidayah Itsna , Sunarto  , Wuryanta Agus , Yulianti Meti , Handoko Unggul , Hakim Andi Muhammad Yasser , Ridwansyah Iwan
Published: November 2024

Total Suspended Solids (TSS) concentration is one of the key indicators of water quality, reflecting the health of reservoir and watershed ecosystems. Accurate and timely monitoring of TSS is essential for effective management and environmental protection. However, existing models frequently fall short of providing reliable TSS estimates. To address this gap, this study evaluates ten current TSS estimation models and develops a novel model based on Landsat-8/9 OLI data for the Gajah Mungkur Reservoir. The objectives include generating a monthly TSS map and assessing water quality changes over time. We utilized Landsat-8 Level-2 data acquired on March 9, 2023, corresponding with in situ TSS observations collected within the reservoir. The algorithm for TSS estimation was developed through a systematic exploration of various combinations of band ratios derived from bands 2 (Blue), 3 (Green), 4 (Red), and 5 (Near Infrared). Our evaluation revealed that the ten existing models exhibited low accuracy in estimating TSS concentrations in Gajah Mungkur Reservoir, highlighting the need for an improved algorithm. In response, we applied bootstrapping techniques and developed a novel model that utilizes two-band ratios (NIR/Green and Red/Green) of Landsat-8/9 Level-2 data to estimate TSS more accurately. The new model has an R² of 0.78 and a root mean square error (RMSE) of 2.44 mg/L. Hence, we applied the new model to eleven Landsat 8/9 images spanning from February 2022 to March 2023 effectively capturing spatial and temporal variations in TSS concentrations in the Gajah Mungkur Reservoir. The model not only provides accurate TSS estimates but also captures the distribution patterns over time, offering valuable insights for environmental monitoring and management.
Pengaruh Perbedaan Varietas Rumput Laut (Kappaphycus sp) dan Variasi Kedalaman Terhadap Pertumbuhan dan Produksi Rumput Laut Menggunakan Metode Budidaya “Top Down”
Authors: A.R.Tassakka Asmi Citra Malina , Latama Gunarto , Rustam Rustam
Published: November 2024

The objective of this study was to investigate the effect of different types of Seaweed (Kappaphycus sp) and depth variation on the growth, production and carrageenan content of Seaweed using a top down cultivation method. Top down method combined the two methods of cultivation, the method of surface and off-bottom method. The types of Seaweed used were Kappaphycus alvarezii (Brown Maumere and Local Maumere) and Bali Seaweed (Kappaphycus striatum). This study was designed using a factorial experimental design, where is comprised of two factors: the types and water depth.  Parameters measured were daily growth rate, production and carrageenan content of Seaweeds.  The results showed that different types of Seaweed gave a significant effect (P<0.05) on daily growth rate and production of Seaweeds, however depth variation did not give a significant effect on daily growth rate and production of Seaweeds (P>0.05).  A combination of Seaweed types and depth variation did not give a significant effect on daily growth rate and production of Seaweeds (P>0.05). The highest carrageenan content was found in Local Seaweed (42.15%).  Brown Seaweed produced 40.59% of carrageenan content while Bali Seaweed produced 35.80%.
TINGKAT PEMANFAATAN DAN ESTIMASI POTENSI IKAN CAKALANG (Katsuwonus pelamis) DI KAWASAN TELUK BONE
Authors: Jamal Muhammad , Hasrun Hasrun , Ernaningsih Ernaningsih
Published: November 2024

Information about potency and utilization of Skipjack Tuna in Bone Bay region will support regionalmanagement of fisheries resources in Indonesiabased on characteristic and carrying capacity of marine waters,espcially in Bay region. The aims of this study were to estimate potency of Skipjack Tuna and the level of theirutilization in Bone Bay region and to estimate the primary productivity produced by euphotic zone (Pp).Analysis methods used in this study were catch per unit effort(CPUE) and maximum sustainable yield (MSY),vertically generalized production model (VGPM) which required data of photosynthetically active radiationanddepth of euphotic zone, fish production model by considering energy transfer efficiency among trophic level.This study was conducted for eight months in Luwu Regency.The result of the study showed that the utilization ofthe Skipjack Tunawas bigger than the MSY,.The Ppeu was in the range of 483.3143to 1306.027 mgC m. The Skipjack Tuna biomass estimation was in the range of 97.87 to264.47tonnes Keywords : Skipjack Tuna, utilization, potency, fisheries management, Bone Bay
STRUKTUR KOMUNITAS MANGROVEDI KABUPATEN MUNA
Authors: Rahman Rahman , Yanuarita Dewi , Nurdin Nardiati
Published: November 2024

Mangrove ecosystem in Muna Regency,includingKembarMaminasa village, has been started to be exploited bythe local community. Unfortunately information about mangrove status and their condition are still negligible.The result of this study is useful to provide basic information for sustainable management of mangroveecosystems. A study of mangrove community structure was conducted at the Tembe River inKembar Maminasavillage, from September to November 2013. Mangrove community structure was analyzed using non-metricmultidimensional scaling technique and Bray-Curtis cluster analysis, while the most contributed species todifference of fish community structure was analyzed using SIMPER (similarity of percentages) procedure. Thedifference between the community structure in three different substrates(muddy, mud-sandy, sand-muddy) wasanalyzed using ANOSIM. All the statistics analysis were carried out using PRIMER v6 software.The results ofthe study showed that there were seven species found in the Desa Kembar Maminasa and they tended todistribute differently among three different substrate, creating three slightly different zones of mangrove fromseaward to landward. The community structure of the mangrove trees were different among the three differentsubstrates. Similar results were found in community structure of mangrove saplings and mangrove seedlings. Key words: District Muna, community structure of mangrove, mangrove tree, mangrove saplings, mangroveseedlings.
ANALISIS KERENTANAN PANTAI BERDASARKAN COASTAL VULNERABILITY INDEX (CVI) DI PANTAI KOTA MAKASSAR
Authors: Sakka Sakka , Paharuddin Paharuddin , Rupang Eunike
Published: November 2024

The vulnerability of Makassar coast was measured using parameters of Coastal Vulnerability Index (CVI). CVIvalue was determined using geomorphology, shoreline change, coastal slope, mean wave height, mean tidalrange, and relative sea level change parameters. The Makassar coast was divided into a numbers of cells, eachwith the length of 1 km and width of 0.5 kminto the sea. CVI values werecalculated for each cell and the coastalvulnerability wereclassifiedinto five categories: very low - low - medium - high - very high. The results show thatthe coastline with high to very high vulnerability index are located at the southern part of Makassar, while thenorthern coastline generally have low to moderate vulnerability. The CVI parameters which contributed to highsusceptibilitywere the coastal slope and the shoreline change parameters. Keywords: Coastal Vulnerability Index, coastal slope and shoreline change, Makassar.
DETEKSI DISTRIBUSI WHITE SPOT SYNDROME VIRUS PADA BERBAGAI ORGAN UDANG VANAME (Litopenaeus vannamei)
Authors: Hidayani A.Aliah , Malina Asmi C. , Tampangallo Bunga R. , Fathurrahman Achmad F.
Published: November 2024

One way to detect the presence of the White Spot Syndrome Virus in several organs Vaname shrimp(Litopenaeus vannamei) were infected with the method of Polymerase Chain Reaction (PCR). WSSV virus isknown to attack various target organs, but it is difficult to detect early on shrimp. Therefore, this study aims todetect the presence of the distribution of White Spot Syndrome Virus in several organs Vaname shrimp(Litopenaeus vannamei) were infected with the Polymerase Chain Reaction method in order to early detectionefforts for the prevention and treatment of diseases caused by the virus. Organ observed that the swimming legs,gills, stomach and antennal gland. Research stages include sample preparation and DNA extraction, DNAamplification and electrophoresis. DNA extraction was performed using the method DTAB and CTAB-DNAamplification is done by using nested PCR. The emergence of DNA bands is an indicator of the presence ofWSSV in shrimp Vaname several organs which are then presented desktriptif. The results showed four WSSVinfected organs were observed. Based on the appearance, the entire sample of the swimming leg and antennalgland positively infected, then successively gills and stomach. The swimming leg can be used to diagnose thedisease early on shrimp WSSV Vaname without turning off the shrimp.Keywords : Distribution, Vanname shrimp, WSSV, PCR
KEANEKARAGAMAN JENIS IKAN KARANG DI PULAU BADI DAN PULAU KODINGARENG LOMPO
Authors: Dahlan Muh. Arifin , Andiewati Suci , Omar Sharifuddin Bin Andy , Nur Muhammad
Published: November 2024

The research aim is to know the diversity of coral fish in Badi and Kodingareng Lompo islands. The study isheld from May until June 2014. The samples are taken twice for one month by using belt transect method.Transect lines were put on depth 3 meters and each dept was. The observed region is as long 50-meter transectlines with the shoreline margin 2,5 meter at the left and right side of the transect. Analysis of data isdone by calculating the kinds of compositions, abundance, diversity index, uniformity, and domination. Theresult of this research is the composition of coral fish in each island. In Badi islands the composition of coralfish is 50 kinds of fish from 15 families with 131 fish. In Kodingareng Lompo island, the composition of coralfish is 21 kinds of fish from 9 families with 82 fish. In Badi island , the diversity index is 3.3870 andKodingareng Lompo island is 2.5566, the uniformity index Badi island is 0.2606 and Kodingareng Lompoisland is 0.2527, and the dominantion index Badi island is 0.0461 and Kodingareng Lompo island is 0.0967.Keywords: Diversity, Abundance, Coral fish, Badi island, Kodingareng Lompo island
Comparative Analysis of Income of Trolling Line and Set Longline Fishing Fishermen in Mallusetasi District, Barru Regency
Authors: Mas’ud Rizka Maulidiyah , Baso Aris , Adhawati Sri Suro
Published: November 2024

Capture fisheries business is one of the coastal community business activities in Mallusetasi District which focuses on fish production by carrying out fishing activities in the sea using trolling line and set longline fishing gear. This study aims to comparative analysis of income of trolling line and set longline fishing rods so it can be used as a reference in the selection of effective and efficient fishing gear at Mallusetasi District, Barru Regency. This study was conducted in November 2017-January 2019 at Mallusetasi District. The data were analyzed using income analysis. This research is quantitative by using a survey method through interviews with a sample of 39 respondents and a set longline fishing rod fisherman totaled 19 respondents, so that the total sample is 50 respondents and observations using purposive sampling technique.. The results showed that the trolling line income was Rp 5.825.923 per month, while the total longline fishing line income was Rp 4.738.040 per month. This shows that the income of troll line fishermen is higher than long line fishing fishermen.
Analisis Pengaruh Pengawasan, Akuntabilitas, dan Transparansi Pengelolaan Keuangan Daerah terhadap Kinerja Anggaran Berkonsep Value for Money pada Pemerintah Kabupaten Kepulauan Anambas Provinsi Kepulauan Riau
Authors: Yanto Yandri , Fathorrahman Fathorrahman , Pradiani Theresia
Published: November 2024

Mewujudkan pemerintahan yang good governance dan good government, maka dalam penggunaan anggaran sangat diperlukan tolok ukur dengan kuantitas dan kualitas yang terukur. Pengawasan, akuntabilitas, dan transparansi sangat berpengaruh untuk mewujudkan Kinerja Anggaran Berkonsep Value For Money. Dalam praktiknya Pemerintah Kabupaten Kepulauan Anambas masih menemukan kelemahan kinerja anggaran berkonsep value for money dalam pengelolaan keuangan daerah, hal ini dapat dilihat dari pengelolaan pendapatan pajak daerah belum memadai, realisasi belanja pegawai tidak sesuai ketentuan, penganggaran belanja tidak tepat pada Sembilan OPD, dan pengelolaan penatausahaan aset tetap belum sesuai ketentuan. Tujuan penelitian ini mengetahui pengaruh secara parsial dan simultan pengawasan, akuntabilitas, dan transparansi terhadap pengelolaan keuangan daerah pada Pemerintah Kabupaten Kepulauan Anambas Provinsi Kepulauan Riau. Penelitian bersifat kuantitatif menggunakan metode Non Probabilty Sampling dengan teknik Purposive Sampling jumlah populasi 34 SKPD jumlah responden sebanyak 68 orang analisis penelitian menggunakan Regresi Linear Berganda dengan bantuan program SPPS versi 27. Hasil penelitian menunjukkan bahwa pengawasan berpengaruh positif dan signifikan terhadap kinerja anggaran berkonsep value for money, akuntabilitas tidak berpengaruh dan tidak signifikan terhadap kinerja anggaran berkonsep value for money, transparansi berpengaruh positif dan signifikan terhadap kinerja anggaran berkonsep value for money, secara simultan pengawasan, akuntabilitas, dan transparansi berpengaruh positif dan signifikan terhadap kinerja anggaran berkonsep value for money, dan pengawasan adalah yang paling dominan mempengaruhi kinerja anggaran berkonsep value for money.
Faktor-Faktor yang Mempengaruhi Penyelesaian Tindak Lanjut Hasil Pemeriksaan pada Organisasi Perangkat Daerah di Kabupaten Kepulauan Anambas
Authors: Muzwati Hani , Pradiani Theresia , Fathorrahman Fathorrahman
Published: November 2024

Penelitian ini bertujuan  untuk menguji  pengaruh Komitmen, Kompetensi Sumber Daya Manusia dan disposisi terhadap Tindak Lanjut Hasil Pemeriksaan (TLHP) pada Organisasi Perangkat Daerah di Kabupaten Kepualauan Anambas. Data dalam penelitian ini diperoleh dari Pegawai Negeri yang menangani Tindak Lanjut Hasil Pemeriksaan di Organisasi Perangkat Daerah yang telah memiliki TLHP Pemeriksaan sebagai responden di Pemerintah Kabupaten Kepulauan Anambas. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kuantitatif, Metode yang digunakan adalah regresi linear berganda, dengan bantuan software SPSS 29. Metode pengambilan sampel adalah metode sampling jenuh atau sensus, dimana keseluruhan populasi dijadikan sampel pada penelitian ini. Hasil Penelitian menunjukkan bahwa variabel kompetensi berpengaruh positif dan signifikan terhadap Tindak Lanjut Hasil Pemeriksaan, variabel Kompetensi Sumber Daya Manusia (SDM) berpengaruh positif dan signifikan terhadap Tindak Lanjut Hasil Pemeriksaan, variabel disposisi berpengaruh positif dan signifikan terhadap Tindak Lanjut Hasil Pemeriksaan. Komitmen, Kompetensi Sumber Daya Manusia (SDM) Dan disposisi berpengaruh secara positif dan signifikan, secara simultan Terhadap Tindak Lanjut Hasil Pemeriksaan di OPD Pemerintah Kabupaten Kepulauan Anambas.
È possibile… molto possibile?
Authors: Bonomi Ilaria
Published: November 2024

Sono arrivate alla redazione alcune domande sull’uso del superlativo molto possibile.
Comparación de la concentración de fibrinógeno por métodos de Clauss y fibrinógeno derivado del tiempo de protrombina en un coagulómetro automatizado
Authors: Fusco Nadia , Sosa Analía , Testuri Mariana
Published: November 2024

Introducción: el fibrinógeno es esencial en la hemostasia y formación de coágulos. Existen varios métodos para su cuantificación, siendo el método de Clauss el recomendado por su precisión, frente al método derivado del tiempo de protrombina, que tiende a sobreestimar los valores.
El propósito de este trabajo es comparar ambos métodos para corroborar si existen diferencias significativas en los resultados de fibrinógeno en los pacientes del Hospital Central de las Fuerzas Armadas.
Materiales y métodos: se analizaron 153 muestras de pacientes, divididos en tres grupos:
Grupo 1: Fibrinógeno elevado (>450 mg/dL) y resto de crasis normal.
Grupo 2: INR >1,4 y fibrinógeno elevado.
Grupo 3: Fibrinógeno bajo (<200 mg/dL).
Se compararon los resultados de fibrinógeno derivado y el método de Clauss mediante regresión Passing-Bablok, Deming y Bland Altman.
Resultados: el fibrinógeno derivado mostró un sesgo positivo en todos los grupos. Aunque se confirmó una relación lineal entre ambos métodos, el análisis de Bland Altman indicó diferencias estadísticamente significativas (p<0.0001). El sesgo fue del 33% para los grupos 1 y 3; y 26% para el grupo 2.
Discusión y conclusión: el método derivado sobreestima los niveles de fibrinógeno, lo que puede generar diagnósticos erróneos, particularmente en pacientes con niveles bajos o altos. El método de Clauss es más preciso y confiable, y debe preferirse para pacientes con alteraciones críticas como hipofibrinogenemia o disfibrinogenemias y para su uso correcto como marcador de inflamación sistémica.
Este artículo fue aprobado por el Comité Editorial.
Recibido para evaluación: marzo 2024.
Aceptado para publicación: junio 2024.
Correspondencia: Av. 8 de Octubre 3020, CP 11600, Montevideo, Uruguay. Tel. +598 24876666 int. 6457.
E-mail de contacto: mtesturi@dnsffaa.gub.uy.
ANALISIS STRATEGI PENGEMBANGAN BISNIS TOKO RETAIL DENGAN MENGGUNAKAN QUANTITATIVE STRATEGIC PLANNING MATRIK (QSPM) DAN PENDEKATAN LEAN CANVAS
Authors: Owen Raharjo Raynard , Putu Hariastuti Ni Luh
Published: November 2024

Toko retail memainkan peran penting dalam perdagangan global dan harus beradaptasi dengan perubahan tren konsumen. Silvi Frozenfood Surabaya menghadapi tantangan persaingan yang mengakibatkan rendahnya jumlah pengunjung. Penelitian ini bertujuan merancang strategi yang tepat untuk meningkatkan usaha bisnis dan penjualan produk agar mampu bersaing di pasar global. Metode yang digunakan adalah metode SWOT, QSPM, dan Lean Canvas. Analisis SWOT mengidentifikasi faktor internal dan eksternal yang menghasilkan matriks IFE, EFE, dan IE, serta matriks SWOT untuk merumuskan strategi alternatif, QSPM mengevaluasi dan menentukan strategi terbaik dan Lean Canvas memproyeksikan hasil untuk memudahkan proses implementasi model bisnis kedepannya. Hasil penelitian menunjukkan bahwa strategi yang tepat untuk Silvi FrozenFood, adalah strategi S-O 2 yaitu strategi diskon/penawaran special dan presentasi produk yang menarik. Strategi terpilih diterjemahkan kedalam model Bisnis Canvas yang mengacu pada 9 block elemen bisnis. Mapping model Bisnis Canvas mendasari implementasi strategi terpilih sehingga perusahaan dapat menjalankan dan mengembangkan bisnisnya mencapai peningkatan penjualan dan keunggulan yang lebih kompetitif
PERENCANAAN PENGENDALIAN RISIKO BAHAYA PADA AKTIVITAS KERJA WATER TREATMENT PLANT MENGGUNAKAN BOW TIE ANALYSIS
Authors: Fathovani Katon Bagas , Supriyadi Supriyadi , Nalhadi Ahmad
Published: November 2024

Aktivitas pekerjaan pada water treatment plant demineralisasi mempunyai risiko yang besar karena wajib menggunakan alat pelindung diri yang lengkap dan khusus. Penelitian ini bertujuan untuk melakukan penilaian risiko dan memberikan rekomendasi pencegahan pada pekerjaan di area water treatment plant demineralisasi. Penelitian ini menggunakan metode Hazard Identification Risk Assessment dan Bow Tie Analysis untuk mendapatkan analisa penyebab dan konsekuensi dari pekerjaan yang dilakukan. Hasil penelitian menunjukkan 2 kegiatan dalam kategori sedang, 4 kegiatan dalam kategori berat dan 2 kegiatan termasuk tingkat yang tidak dapat diterima. Pengendalian bahaya yang dapat dilakukan dengan melakukan pekerjaan sesuai dengan SOP yang berlaku, penerbitan SIKA (surat ijin kerja aman) dan formulir JSA (Job safety analysis) untuk memastikan pekerjaan sudah dalam kondisi aman serta perlu melakukan pengawasan terhadap pemakaian APD (Safety glass, safety helm, safety gloves, masker,ear plug, safety shoes). Pengendalian juga dapat dilakukan dengan cara perencanaan pemeliharaan dan penggantian peralatan kerja sesuai dengan umur pemakaian, dan perencanaan pembersihan secara rutin agar tidak menimbulkan bahaya yang berkelanjutan. Penelitian ini memberikan langkah terstruktur dalam identifikasi risiko sehingga dapat memberikan rekomendasi pencegahan risiko yang lebih relevan
ANALISIS RISIKO KECELAKAN KERJA DENGAN METODE JOB SAFETY ANALYSIS PADA PROYEK KONSTRUKSI DI CV. XYZ
Authors: Budiharjo Budiharjo
Published: November 2024

Setiap aktivitas kerja pada proyek konstruksi berisiko membahayakan keselamatan dan kesehatan kerja. Kecelakaan kerja merupakan kejadian di tempat kerja yang tak diharapkan dan menyebabkan gangguan kesehatan, serta menimbulkan kerugian bagi pekerja dan perusahaan.  Kecelakaan kerja disebabkan oleh pekerja, peralatan, metode, maupun lingkungannya. Penelitian ini dilakukan pada proyek konstruksi PT. XYZ bertujuan mengetahui potensi bahaya kerja pada proyek konstruksi dan penyebabnya, serta cara pengendalian risiko guna mengurangi kecelakaan kerja, menggunakan metode job safety analysis. Hasil penelitian menunjukkan bahwa aktivitas kerja yang sangat berpotensi menyebabkan kecelakaan kerja adalah pengelasan struktur rangka baja, bongkar/pasang scaffolding, dan pemasangan atap. Rating risiko tertinggi adalah 16 pada bongkar/pasang scaffolding. Usulan pengendalian risiko agar pekerja selalu menggunakan APD dan mengikuti SOP, serta penempatan petugas safety untuk mengawasi keselamatan setiap pekerjaan. Perusahaan perlu menjalin hubungan baik dengan masyarakat dan bekerjasama dengan aparat keamanan setempat agar tercipta kondisi keamanan yang kondusif sehingga tercipta suasana kerja yang aman dan nyaman
USULAN RANCANGAN TATA LETAK FASILITAS MENGGUNAKAN METODE CRAFT DAN ALGORITMA IMPROVEMENT 2-OPT & 3-OPT PADA PT XYZ
Authors: Aliman Nazwa Rizki , Rochman Didit Damur
Published: November 2024

PT XYZ, merupakan produsen pakaian seperti kaos kaki, sarung tangan, inner fashion, dan pakaian dalam, menghadapi permasalahan pada tata letak fasilitas produksi yang tidak efisien. Mesin-mesin produksi ditempatkan secara acak tanpa memperhatikan aliran material yang optimal, mengakibatkan jarak tempuh perpindahan material yakni mencapai 495,15 meter per hari. Kondisi ini tidak hanya meningkatkan biaya material handling tetapi juga menghambat produktivitas dan efisiensi operasional perusahaan. Dalam rangka mengatasi masalah tersebut, penelitian ini menggunakan metode CRAFT (Computerized Relative Allocation of Facilities Technique) serta algoritma improvement 2 OPT dan 3 OPT untuk merancang ulang tata letak fasilitas yang lebih efisien. Penelitian ini bertujuan untuk mengukur dan menganalisis biaya material handling berdasarkan jarak tempuh material pada tata letak awal, merancang tata letak fasilitas baru yang dapat meminimalkan jarak perpindahan material dan biaya material handling, serta mengevaluasi besaran penghematan yang dicapai melalui penerapan metode yang diusulkan. Hasil penelitian menunjukkan bahwa jarak tempuh perpindahan material berhasil dikurangi dari 495,15 meter menjadi 400,17 meter per hari Selain itu, biaya material handling yang semula Rp125.100,- berhasil diturunkan menjadi Rp101.178,- per hari, sehingga menghasilkan penghematan sebesar 19,12%. Dengan demikian, penerapan metode CRAFT dan algoritma improvement 2 OPT dan 3 OPT terbukti lebih efisien dalam mengurangi biaya dan jarak tempuh material handling, yang pada akhirnya meningkatkan efisiensi operasional di PT XYZ
USULAN PERBAIKAN UNTUK MENGURANGI WASTE PADA MANUFAKTUR KABEL DENGAN PENDEKATAN LEAN SIX SIGMA
Authors: Syahrullah Yudi , Nofandy Danu Syukur , Sofiana Amanda , Nando Fiky Two
Published: November 2024

Industri manufaktur kabel mengalami pertumbuhan yang signifikan, sehingga manufaktur perlu meningkatkan daya saing dalam memenuhi ekspektasi pelanggan, seperti: produk yang berkualitas, harga murah, dan tersedia tepat waktu. Saat ini industri manufaktur kabel di Banyumas mengalami kendala yang disebabkan oleh berbagai waste atau pemborosan, diantaranya pekerja yang mengganggur, defect, penumpukan wadah bahan baku, dan keterlambatan produksi yang dapat berpengaruh terhadap pemenuhan kebutuhan pelanggan. Penelitian ini bertujuan untuk mengidentifikasi waste yang paling dominan pada kegiatan manufaktur kabel serta merekomendasikan usulan perbaikan untuk mengurangi waste tersebut. Penelitian ini menggunakan pendekatan lean six sigma dengan metode Waste Assessment Model (WAM) untuk menentukan prioritas waste yang perlu diperbaiki dan konsep DMAIC untuk memberikan usulan perbaikan waste yang menjadi prioritas tersebut. Hasil pengolahan data dengan WAM menunjukkan ranking waste dari ranking yang tertinggi hingga terendah. Berdasarkan hasil analisis dengan WAM, waste kategori defect merupakan waste terbesar dengan kontribusi sebesar 21,55%. Waste kategori defect selanjutnya dianalisis secara lebih rinci dengan menggunakan tahapan Define, Measure, Analyze, Improve, dan Control (DMAIC). Ditemukan defect untuk produk kabel NYA 1,5 mm² merupakan produk dengan tingkat defect tertinggi dan defect visual jenis benjolan merupakan jenis defect tertinggi untuk produk ini. Analisis dengan DMAIC menunjukkan bahwa panas yang tidak merata pada mesin insulation menjadi prioritas perbaikan dengan nilai RPN tertinggi sebesar 168, sehingga menjadi risiko tertinggi yang dapat menyebabkan terjadi defect benjolan. Oleh karena itu, usulan perbaikan direkomendasikan untuk mengatasi permasalahan pada mesin tersebut