bluuebunny/crossref_metadata_2025 huggingface dataset:
Clinical Effect Analysis of Laparoscopic Nerve-Sparing Radical Hysterectomy in Patients with Early-Stage Cervical Cancer
Authors: Xue Hong , Chen Meng , Li Shuqin , Zhou Yongchun
Published: May 2024

Background: There is much controversy about the utility of open and laparoscopic surgery procedures for cervical cancer following the Laparoscopic Approach to Cervical Cancer (LACC) trial. The main objective of this study was to determine the utility of laparoscopic nerve-sparing radical hysterectomy (LNSRH) in improvement of postoperative bladder and rectal function and clinical outcomes of patients with common types of early-stage cervical cancer and tumor diameters <2 cm. Methods: Ninety cases of common types of early-stage cervical cancer with tumor diameters <2 cm were primarily treated with surgery from 2015 to 2021. Forty-five patients underwent LNSRH were classified as the study group and the remaining 45 patients underwent traditional abdominal radical hysterectomy (ARH) and classified as the observation group. The clinical and survival outcomes of the 2 groups were compared. Results: We observed no significant differences in the amount of blood loss, number of lymph nodes dissected, length of vaginal resection and length of parametrium resection between the two groups (p > 0.05). The overall time of operation for LNSRH was longer than that for ARH (p < 0.001). The Visual Analogue Scale (VAS) scores at 8, 24 and 48 hours were significantly different between the two groups (p < 0.001). Catheter retention, flatus and spontaneous defecation times of the LNSRH group were significantly shorter than those of the ARH group (p < 0.05). The proportion of patients with dysuria, abdominal pressure urination and constipation at 6 months after surgery in the LNSRH group was markedly lower relative to the ARH group (p < 0.05). Evaluation of urodynamic parameters 12 months after surgery revealed faster recovery of the LNSRH group (p < 0.05). Postoperative survival rates were not markedly different between the groups (p > 0.05). Conclusions: Laparoscopic nerve-sparing radical hysterectomy is beneficial for patients with common types of early-stage cervical cancer and small tumors. The procedure effectively improves bladder and rectal function after surgery and promotes rapid recovery with no adverse effects on survival outcomes.
Trends in the Development of Islamic finance in the context of globalization
Authors: Astanakulov Olim , Asatullaev Khurshid , Goyipnazarov Sanjar , Batirova Nilufar
Published: May 2024

Until the twentieth century, there were no stable forms of financial institutions in the Muslim world that could be defined as “banks”. The first banks, in their classical form, owned by Muslims (the corporate “majority”) began to appear after the 1920s. The collapse of the colonial system after the Second World War led to the emergence of new states, including Muslim ones. These states needed their own financial systems - this is how the first national banking institutions of Muslim countries began to appear. Since the second half of the 20th century. In the Muslim world, primarily in the Middle East, a process called “Islamic revival” is beginning - a term that denotes various types of spreading or strengthening of Islam. An important role in this was played by the religious concept - tajdid, which was manifested throughout the history of Islam in periodic calls for the restoration of basic religious principles in public relations.
Trends of the socio-cultural modernization of the rural schools in Russia
Authors: Yeretnova Yevgeniya , Sartakova Elena , Medvedev Igor
Published: May 2024

The relevance of the study is due to the contradictions between the increasing need to create strategies and concepts for organizing education in rural schools in research practice corresponding to the trends of a post-industrial information and communication society and the weak development of rural school models, conceptually based on the post-classical scientific paradigm as the most relevant to the modern type of sociality. The purpose of the study is to identify “ideas” that reflect the specifics of the functioning of the rural school in the modern conditions, which could act as grounds for its conceptualization.
Effect of Repetitive High-Density Current Pulses on Plastic Deformation of Copper Wires under Stepwise Loading
Authors:   Institute of Molecule and Crystal Physics, UFRC of Russian Academy of Sciences, Ufa, Russia, Dmitriev Sergey V. , Morkina Alina Y. ,   Institute for Metals Superplasticity Problemsof Russian Academy of Sciences, Ufa, Russia, Tarov Danila V. ,   Research Laboratory for Metals and Alloys under Extreme Impacts, Ufa University of Science and Technology, Ufa, Russia, Khalikova Gulnara R. ,   Institute for Metals Superplasticity Problemsof Russian Academy of Sciences, Ufa, Russia, Abdullina Dina U. ,   Institute of Molecule and Crystal Physics, UFRC of Russian Academy of Sciences, Ufa, Russia, Tatarinov Pavel S. ,   Polytechnic Institute (Branch) in Mirny, North-Eastern Federal University, Mirny, Sakha Republic (Yakutia), Russia, Tatarinov Vladimir P. ,   Polytechnic Institute (Branch) in Mirny, North-Eastern Federal University, Mirny, Sakha Republic (Yakutia), Russia, Semenov Alexander S. ,   Polytechnic Institute (Branch) in Mirny, North-Eastern Federal University, Mirny, Sakha Republic (Yakutia), Russia, Naimark Oleg B. ,   Institute of Continuous Media Mechanics of the Ural Branch of Russian Academy of Sciences, Perm, Russia, Khokhlov Andrey V. ,   Institute of Mechanics, Lomonosov Moscow State University, Moscow, Russia, Stolyarov Vladimir V. ,   Mechanical Engineering Research Institute of Russian Academy of Sciences, Moscow, Russia
Published: May 2024

High-density electric current pulses increase the plasticity and reduce the yield stress of metals with negligible heat generation. This effect has great potential for the development of energy-saving technologies for processing hard-to-deform metallic materials. Despite the long history of the study of electroplasticity, there is still no consensus on the physical nature of this effect. In this paper, the effect of repetitive pulses applied at the same or gradually increasing tensile stress on the plastic deformation of copper wire is investigated using a home-made experimental setup. The electroplasticity of the wire in the delivery state and after annealing is compared. It is shown that for a constant tensile stress, the incremental plastic deformation of the wire decreases with each successive pulse. This effect is stronger for annealed wires because they have a lower dislocation density and therefore a lower plasticity resource. The Joule heat release in the specimen and the heating due to plastic deformation are evaluated. The results obtained will be used to fit the parameters of the atomistic model being developed to describe the interaction of electron flow with dislocations.
Fatores na interrupção do aleitamento materno exclusivo: Uma scoping review
Authors: Carvalho Sílvia , Rei Patrícia , Moniz Xénia , Santos Ana Paula , Tavares Márcio , Tavares Patrícia
Published: May 2024

Contexto: O aleitamento materno exclusivo é fundamental para a saúde e o desenvolvimento infantil, mas muitos fatores podem levar à sua interrupção precoce. Entender esses fatores é crucial para desenvolver intervenções eficazes. Objetivo: Identificar e categorizar os fatores que influenciam a interrupção precoce do aleitamento materno exclusivo antes dos seis meses de vida. Métodos:  Esta revisão scoping utilizou o agregador de bases de dados EbscoHost. Foram selecionados artigos publicados entre 2020 e 2023, disponíveis na íntegra em inglês, português e espanhol. A pesquisa foi conduzida utilizando o vocabulário DeCS/MeSH para a obtenção de sinónimos e operadores booleanos, com a triagem e seleção dos artigos realizada independentemente por três revisores utilizando a ferramenta Rayyan. Resultados: Sete estudos foram incluídos na revisão. Fatores maternos como ser primípara, baixo nível educacional, atitudes negativas em relação ao parto e falta de intenção de amamentar aumentam a probabilidade de interrupção precoce da amamentação. A ansiedade e a depressão maternas impactam negativamente a autoeficácia para amamentar. A introdução precoce de alimentos sólidos e substitutos do leite materno, bem como o uso de chupetas e tetinas, estão associados a uma duração mais curta da amamentação. Partos por cesariana e atitudes negativas em relação ao parto também impactam negativamente o sucesso da amamentação. Conclusões: Esta revisão destaca a necessidade de programas de educação e aconselhamento pré-natal, políticas de apoio no local de trabalho, intervenções de saúde mental e proteção para mulheres em situações de violência doméstica. Além disso, recomenda práticas como o contato pele-a-pele imediato e apoio contínuo à amamentação, conforme as diretrizes da OMS e UNICEF, para melhorar as taxas de aleitamento materno exclusivo.
Organisational Dynamics of University Social Capital: Developing Constructs Through Factor Analysis
Authors: Abu Sayed Toyon Mohammad
Published: May 2024

This study is designed to illuminate the role of four key constructs—teacher-student relationships, peer networks, satisfaction with support services, and employability trust—in shaping the social capital within universities. Utilising a sample of 1902 working students derived from the Eurostudent VII survey data, this research applies both exploratory and confirmatory factor analysis to validate the proposed model. The findings indicate that all four constructs demonstrate statistically significant and positive associations with university social capital. Crucially, the measures of reliability and validity are within an acceptable range, lending credibility to the findings. The teacher-student relationship was found to be the most influential factor, highlighting its crucial value in the functioning of social capital inside universities. Along with providing a framework for future studies on the ever-changing nature of social capital in universities, the results highlight the significance of cultivating an interconnected academic community, which enriches the educational organisation as a whole.
The Financialization of Housing and Its Political Consequences
Authors: Dancygier Rafaela , Wiedemann Andreas
Published: May 2024

Institutional investors in residential real estate have become targets of political backlash against unaffordable housing. We argue that this backlash is not only about economic issues such as rising rents; it reflects a fundamental rejection of "financialized capitalism" that turns housing from a basic need into a speculative asset. Using novel geo-coded real estate transaction data, we document the extent of housing financialization cross-nationally and over time, and demonstrate that neighborhood-level exposure to financialization alone is insufficient to explain the widespread support to expropriate corporate landlords in a historic 2021 Berlin referendum. We then develop nationally-representative surveys to show that German citizens conceptualize housing as a social right and hold the state responsible for its under-provision. We demonstrate experimentally that arguments about housing financialization significantly raise support for expropriation beyond rent effects. Our findings suggest that financialized capitalism can unite diverse groups of voters in favor of housing socialism.
Modification of K Nearest Neighbor by Graph Similarity Metric for Keyword Extraction
Authors: Jo Taeho
Published: May 2024

This article proposes the modified KNN (K Nearest Neighbor)algorithm which receives a graph as its input data and is applied tothe keyword extraction. The graph is more graphical for representinga word and the keyword extraction is able to be mapped into thebinary classification where each word is classified into keyword ornon-keyword. In the proposed system, a text which is given as theinput is indexed into a list of words, each word is classified bythe proposed KNN version, and the words which are classified intokeyword are extracted ad the output. The proposed KNN version isempirically validated as the better approach in deciding whethereach word is a keyword or non-keyword in news articles and opinions.In this article, a word is encoded into a weighted and undirectedgraph and it is represented into a list of edges.
Linking petrographic and geochemical indicators of melt reactions in pelitic migmatites and leucogranites
Authors: Oldman Charlie , Warren Clare , Harris Nigel , Kunz Barbara , Spencer Christopher , Argles Tom , Hammond Sam , Degli-Allessandrini Giulia
Published: May 2024

Anatexis in orogenic systems has wide-reaching implications for the structure, mechanical strength, and later exhumation of the middle crust during orogeny. Previous studies of melt reactions in metapelitic rocks have identified three major melt-producing reactions: fluid-present incongruent melting, fluid-absent muscovite dehydration melting, and fluid-absent biotite dehydration melting. Due to the composition of the reacting phases and the formation of peritectic phases, each of these reactions has implications for element mobilisation. Petrographic and geochemical signatures of melt reactant and product minerals allow different reactions to be identified and distinguished. Migmatites and leucogranites occur across the Himalaya in the Greater Himalayan Sequence (GHS). Using samples from the Alaknanda valley, near Badrinath in the Garhwal Himalaya, we identify petrographic and mineral compositional characteristics that suggest a progressive thermal sequence through the fluid-present, muscovite-dehydration, and later biotite-dehydration melting reaction fields, but a differential record. Samples from a single outcrop only preserve records for one reaction type, despite having experienced the same thermal history. Our observational and in-situ chemical data from feldspars, micas, and garnet reveal melt reaction systematics through peritectic crystallisation textures and large-ion lithophile element concentrations. Our results show that the mineral chemistry and petrographic observations are similar between (source) migmatites and (sink) granites, and that together these datasets provide more powerful insight into migmatite and granite melting reaction history than bulk-rock data alone.
Improving Small-Area Estimates of Public Opinion by Calibrating to Known Population Quantities
Authors: Marble William , Clinton Joshua
Published: May 2024

Multilevel regression and poststratification is widely used to estimate opinion in small geographies and to adjust unrepresentative surveys — and has become a mainstay in the study of dyadic representation. Yet, errors generated by nonignorable non-response and modeling uncertainty make discrepancies between public opinion and policy outcomes difficult to interpret. We propose a principled, data-driven method to leverage auxiliary quantities with known marginal distributions — e.g., election outcomes — to improve estimates of policy attitudes. Our method estimates the geographic correlation between the auxiliary variables and the outcomes of interest, then adjusts the estimates using observed errors in the auxiliary variable estimate. We illustrate our approach using a pre-election poll measuring support for an abortion referendum, finding that the method reduces county-level error by two-thirds. We find similarly dramatic improvements estimating precinct-level opinion. Our method generates new possibilities for accurately estimating policy attitudes at previously unattainable levels of geographic resolution.
Significance of Bottom-Up Approach for Policy Implementation
Authors: Shahi Hari Bhakta
Published: May 2024

Developing the connection between the creation and execution of policies is the primary goal of the top-down approach. The ability to be innovative, experienced, knowledgeable, and authoritative allows top level personnel to oversee lower level policy implementation. However, there are certain drawbacks to the top-down strategy. At the top, things like local conditions, surroundings, and ground reality are unknown. A bottom-up strategy was developed to lessen the constraints of the top-down strategy when implementing policies. As a result, the emphasis on a bottom-up approach, the significance of street-level bureaucrats, and locally based organizations can all contribute to the implementation of policies successfully.
REMOTE WORK INFLUENCE ON EMPLOYEE'S IDENTITY
Authors:   Saint Petersburg State University, Vasileva Daria
Published: May 2024

The popularity of remote work is growing nowadays. Individuals who choose this format become excluded from the office and their social environment. Involvement into different community activities and communication are important aspects of workers` identity, therefore, there is a problem whether remote work is influencing this component.
ARCHITECTURAL AESTHETICS OF Р. EISENMAN
Authors:   St. Petersburg State University, Ba Wanli
Published: May 2024

With the continuous development and progress of modern architecture, architectural aesthetics also develops accordingly. Architectural aesthetics is a good reflection of architects' design concepts, and this paper is devoted to the research of Peter Eisenman's architectural aesthetic concepts in different eras.
ARCHITECTURAL ANTHROPOCENE
Authors:   Saint-Petersburg State University, Nikolaeva Zh.
Published: May 2024

The approach, first called the Anthropocene by chemist Paul Krutzen, concerning the significance and consequences of anthropogenic transformations of the land, oceans, biosphere and climate of the Earth, demonstrated from a variety of points of view that it is very possible people have already begun a new geological epoch, their own. Will this change the architectural paradigm? Can we already observe the processes of the emergence of a new type of architectural thinking? The study suggests trying to reconstruct and analyze a model of thinking in which, despite the seemingly total gap between two types of cohabitation (urban and rural), it is the wide variety of "natural" present in post-megacities that is usually considered an index of environmental health and an indicator of proper development. New ways of modeling and manufacturing in architecture, as well as improvements in biotechnology, synthetic biology, engineering and related sciences, are leading to an ever-growing interdisciplinary approach to environmental design. Is this is a new architecture that needs to be defined?
Developing a Community-Based Exercise and Physical Programme for Runners With Patellofemoral Pain in Under-Resourced Communities: A Delphi Study
Authors: Kunene Siyabonga
Published: May 2024

Background:

Patellofemoral pain (PFP) is a multifactorial condition that is highly prevalent among recreational runners. Poor homeostasis between load and runner's capacity is the main cause of PFP. A low-cost and community-based intervention is needed to address the rehabilitation needs of runners in under-resourced communities.

Purpose:

To develop a community-based exercise and physical programme for runners with PFP in under-resourced communities.

Method:

This study used a Delphi method that included sports experts (physicians, physiotherapists, biokineticists, podiatrists, and sports therapists) who consented to participate. Delphi included three rounds of iterations to attain consensus among experts. Experts reached a consensus by rating PFP programme items using the 5-point Likert scale.

Results:

Ten experts participated. There were more males ( n = 6) than females ( n = 4). Participants were aged between 36 and 55 years ( n = 5) and had 16-20 years of clinical experience ( n = 5). Delphi process yielded an exercise and physical intervention, which included the following 10 recommended strategies: hip muscle training, quadriceps muscle training, general lower limb and trunk strengthening, use of appropriate running shoes, and use of prefabricated in-shoe foot orthosis, tissue mobilisation, patellar taping/bracing, education, flexibility exercises, addressing external loads, and addressing nonphysical internal loads.

Conclusions:

A consensus was reached for a suitable exercise and physical programme for runners in under-resourced communities. A follow-up implementation study is, therefore, recommended.
The right to have private rights
Authors: Michaels Ralf
Published: May 2024

Hannah Arendt, famously, was no believer in human rights. Human rights, she thought, are unsatisfactory because they are territorially unlimited but ineffective. Her own alternative – the right to have rights, through membership in a political community – is not satisfactory either: such rights are effective but territorially limited and subject to the state’s discretion. Drawing on Karen Knop’s ‘private citizenship,’ this article suggests that a private international perspective may provide answers to these shortcomings. First, we should view private rights and private international law as the private side of human rights. Second, in times of great stress for a state, private international law can sometimes protect rights more subtly, more precisely, than human rights. And, third, the central role of private law in the protection of human rights provides a new lens on human rights more generally. By giving rights granted by states transboundary effectivity, private international law enables a third way beyond human rights that are ineffective and national rights that are territorially confined. It is by no means a panacea. But an analysis of human rights law, or of Arendt’s right to have rights, is incomplete unless it includes the right to have private rights as established by private international law.
Rehoming diplomacy: Privilege and possibility in the international law of diplomatic relations
Authors: Johns Fleur
Published: May 2024

Inspired by Karen Knop’s distinctive approach to international legal scholarship, and by her writings on gender and diplomacy, this article explores the centrality of households and household hierarchies in the international law of diplomacy as well as their significance for understanding hierarchy and privilege in international law more broadly. This argument is developed by attention, especially, to the negotiation history and text of the 1961 Vienna Convention on Diplomatic Relations (VCDR). Diplomatic premises have been organized around hierarchy in ways that are apparent in the text and travaux préparatoires of the VCDR, the article shows, and the diplomatic premises so configured do work in international legal discourse beyond being expressly defined and protected by international law. Those premises afford a model of how statehood should be performed and how states should relate to one another, helping to normalize hierarchy within and between states, and to entrench gendered hierarchies (in combination with class and racial hierarchies) in diplomatic work. The article demonstrates how attention to the role of hierarchy ‘at home’ in diplomatic work, in the hybrid, public-private space of the diplomatic household, can elucidate international law’s deep investment in maintaining privilege. This it illustrates by examining a recent dispute between Equatorial Guinea and France before the International Court of Justice over the status of the Paris residence of one of Equatorial Guinea’s senior diplomatic representatives, viewed against the backdrop of France’s ongoing resistance to reparations claims against the French state for its practices of colonial pillage and enslavement. Yet its defence of privilege notwithstanding, diplomacy’s typical residential, state capital-based model is undergoing change and has in fact long been a focus of strategic re-articulation through protest. The article concludes by querying whether diplomatic households could be regarded, counter-intuitively, as legal spaces of possibility for the recomposition of relations on the international legal plane.
Nationalism and Populism: identity and differences
Authors: Kugai Aleksandr Ivanovich
Published: May 2024

The article discloses the logic of populism and nationalism, presents the rationale: when and why these discourses historically arise, and what function they perform in modern politics. First of all, nationalism and populism are internally intertwined, have a common structural origin, they cannot be completely separated from each other, even if it is possible to distinguish the ideal–typical logic of these phenomena. Secondly, nationalism and populism manifest themselves in various forms: the vitality of "banal" nationalism is accompanied by the almost ubiquitous presence of "subtle" populism. Thirdly, the problem of the relationship of nationalism and populism to modern democracy is, in principle, intractable. Nationalism and populism are absolutely necessary for the functioning of modern democracy, as they offer a solution to the border problem and the problem of political representation. Accordingly, without a minimum layer of nationalism and populism, the modern democratic community would disintegrate before it could form.
Using QR codes in the science and technology center
Authors: Büyükkol Köse Emine , Çetin Gülcan
Published: May 2024

The aim of this study was to determine the high school students’ views about the trip to the science and technology center with QR code brochure. In the study, the design and development research method was used. The study group consisted of a total of 21 students studying in the 11th and 12th grades of the Technical Anatolian High School in the Marmara region in Turkey. In the study, an information brochure of the science and technology center located in the Marmara region was re-designed by enriched with QR code. Afterwards, a day trip to the STC was organized. Data were collected with semi-structured interview forms and analyzed according to the content analysis technique. According to the results of the study, before the trip the students stated that the QR code brochure had different, remarkable, informative, and lively elements. The students emphasized that the QR code brochure increased their interest and curiosity about the trip. The students indicated that they had a better quality of the trip thanks to the QR code brochure, they could visit many places in a short time, and the brochure guided them. After the trip, the students asserted that their favorite parts of the science and technology center were the Simulator and Planetarium. Most of the students confirmed that the science and technology center trip contributed to the lessons, that they applied and tried what they learned in the lesson. Therefore, QR codes can be used in teaching materials and outdoor activities since QR codes increase students’ motivation to lessons.
Exploring the effect of online learners’ academic self-concepts on student engagement
Authors: Kurnaz Fatma Betül , Ergün Esin , Adıbatmaz Mustafa
Published: May 2024

The present study intends to evaluate the degree to which online university students’ academic self-perceptions predict variations in student engagement. The relational screening method was employed in this research. Data were collected from a total of 653 university students, 113 male and 539 female. The Student Engagement Scale (SES) and the Matovu Academic Self-concept Scale (ASCS) were utilised. Stepwise regression data analyses were conducted. Based on the results that the study yielded, it was observed that ASC had a high level of impact on student engagement, the levels of which varied across different factors of engagement. Academic effort and academic confidence variables accounted for 44% of the variance in behavioural engagement and showed a high positive relationship, while accounting for 33% of cognitive engagement with a moderate level of positive relationship. However, only academic effort was found to have a relationship with affective engagement, which was at a moderate level, accounting for 17% of the variance. Academic effort is relation with all student engagement factors. However, while academic confidence is only relation with behavioural and cognitive engagement, it is not relation with affective engagement. As a result, positively influencing student engagement in online learning environments will lead to positive changes in students' academic self-concept.
Examination of cybersecurity in open and distance learning within the scope of technical support services
Authors: Ertan Sehla , Yüzer T. Volkan
Published: May 2024

Open and distance learning (ODL) activities aim to meet the expectations and needs of different individuals, societies, and systems by ensuring the continuation of learning with a lifelong learning philosophy and an egalitarian policy for everyone, regardless of time and place. Support services, which address the differentiated expectations and needs in all learning-related activities, serve the learning processes and the various stakeholders involved. Therefore, technical support services are included in support activities that require the use of technology as a tool, mediator, or technique in learning processes. In this study, ODL systems that are situated in digital space are examined within the scope of technical support services in line with the threats and dangers of the developing and expanding digital space. The aim is to create a technical support service model based on Herbert Simon's Bounded Rationality Theory and Otto Peters' Industrialization Theory, to ensure cybersecurity in ODL systems. In this study, which adopted a case study as one of the qualitative research methods, documents in the literature were examined first. Considering the literature, the opinions of eight field experts were gathered by ten interview questions. After the semi-structured interviews were transcribed, the data obtained were divided into codes and themes through thematic analysis. The findings stressed the importance of institutional culture, distribution of tasks and responsibilities, administrative support, institutional awareness, cybersecurity training, and the use of different technologies to ensure cybersecurity in ODL systems. Additionally, the experts emphasized a common view that smart systems should be used in the provision and maintenance of cybersecurity.
A new record of margay Leopardus wiedii (Schinz, 1821) in the Brazilian Caatinga domain
Authors: Marinho Paulo H. D. , Rosas-Ribeiro Patrícia F. , Fernandes-Ferreira Hugo , de Oliveira Tadeu G.
Published: May 2024

Leopardus wiedii é um felídeo neotropical de pequeno porte, com excelentes habilidades arbóreas e típico de ambientes florestais. Quase ameaçada mundialmente, no Brasil a espécie está na categoria Vulnerável. Relatamos um novo registro de L. wiedii no domínio da semiárida Caatinga brasileira, fora da sua área de distribuição conhecida e distante aproximadamente 350 km do registro mais próximo conhecido para a espécie. O animal chegou na Floresta Nacional do Araripe-Apodi em 2015, após ser entregue por moradores à Polícia Ambiental. Futuras pesquisas devem investigar a ecologia e o status populacional de L. wiedii na região para subsidiar estratégias de conservação.
PENGARUH KOSENTRASI HORMON KINETIN DAN IAA PADA KULTUR JARINGAN TANAMAN MANGROVE (Rhizophora apiculate BL)
Authors: Mahadi Imam , Wulandari Sri , Kusmedi Hana Tasya
Published: May 2024

Mangroves (Rhizophora apiculata) are one of the plants that grow in mangrove forests. The significant degradation of mangrove forests in Indonesia requires effective and efficient rehabilitation efforts. Efforts to provide superior seeds in a short time and in large quantities, one of which is through tissue culture. ZPT (Growth Regulator) Kinetin and IAA in balance can stimulate the morphogenesis process in the explant. This study used a 4×4 factorial randomized complete (RAL) design with 3 replications. The first factor is the concentration of kinetin. 0 mg/L, 1 mg/L, 3 mg/L, and 5 mg/L. The second factor is IAA concentrations of 0 mg/L, 0.5 mg/L, 1 mg/L, and 1.5 mg/L. The parameters observed were explant growth time, explant growth percentage, and bud height. The results showed an interaction with the plant growth time factor, and the best plant growth rate was achieved using the kinetin treatment of 5 mg/L and the IAA treatment of 1.5 mg/L, while the best shoot height factor was found in the kinetin treatment of 5 mg/L. l and IAA 1 mg/L treatment concentrate.
Optimasi Ketahanan Benih Ikan Nila Salin (Oreochromis niloticus) Terhadap Infeksi Streptococcocis
Authors: Rahmi R , Akmal A , Salam Nur Insana
Published: May 2024

This study aims to determine the resistance level of saline tilapia (Oreochromis niloticus) seeds obtained from tilapia broodstock that has been vaccinated with attenuated S. iniae bacteria against streptococcocis infection. This research was conducted in June-September 2020 at the Mini Hatchery Laboratory of the Department of Fisheries, Faculty of Marine and Fisheries Sciences, Hasanuddin University. The fish seeds used are 3-5 cm in size and 7-10 g in weight. The bacteria Streptococcus iniae were soaked in seeds for 30 minutes using concentrations of 105 CFU/mL, 107CFU/mL, 109CFU/mL, and without immersion. The seeds were then kept in a 40x25x20cm3 aquarium with a density of 50 seeds per aquarium for one month and fed at satiation. During the experiment, the media quality of the seeds was maintained within an acceptable range for the growth and viability of saline tilapia. The parameters observed were survival, RPS, and lysozyme activity in saline tilapia seeds. The optimal result that can increase the resistance of saline tilapia fry against Streptococcocis infection is at a concentration of 107 CFU/mL. This concentration can increase the survival rate, RPS, and lysozyme activity in saline tilapia.
POLIMORFISME PRIMER RAPD PADA TANAMAN JAMBU METE ASAL TIGA KABUPATEN DI SULAWESI TENGGARA
Authors: Arsyad Mirza Arsiaty , Irwan I , Boer Dirvamena , Cahyaningsih Yuni Fitri , Larekeng Siti Halimah , Iswanto I
Published: May 2024

Sulawesi Tenggara merupakan salah satu penghasil komoditas jambu mete terbesar di Indonesia yang memiliki makna penting untuk perdagangan di Indonesia. Penentuan polimorfisme suatu primer merupakan langkah awal dalam melakukan studi keragaman genetik untuk memperoleh informasi genetik suatu species. Penelitian ini bertujuan untuk menentukan primer RAPD yang polimorfik untuk digunakan dalam analisis keragaman genetik jambu mete di tiga kabupaten di Sulawesi Tenggara. Penelitian ini menggunakan 20 primer RAPD untuk mengamplifikasi sampel DNA jambu mete dan memperoleh tiga primer RAPD (primer OPA-15, OPP-08 dan OPC- 11) yang menunjukkan pita polimorfik pada sampel DNA yang digunakan. Ketiga primer RAPD yang diperoleh berpotensi untuk digunakan pada studi genetik jambu mete yang berasal dari Sulawesi Tenggara.
Induksi Kalus Eksplan Daun Stroberi (Fragaria x ananassa Duch) dengan Pemberian NAA dan CaP Secara In Vitro
Authors: Millenia Fauzia Khaerunnisa , Sumadi S , Suminar Erni , Nuraini Anne , Pitaloka Gina Gustiani
Published: May 2024

Penggunaan varietas unggul seperti Sweet Charlie perlu diikuti dengan metode perbanyakan yang tepat agar dapat menghasilkan bibit stroberi dalam jumlah besar dengan waktu yang singkat dan bebas dari penyakit. Teknik perbanyakan secara in vitro dapat dilakukan melalui pembentukan kalus. Penelitian ini bertujuan untuk mengetahui pengaruh kombinasi perlakuan NAA dan CaP dalam induksi kalus daun stroberi varietas Sweet Charlie secara in vitro. Percobaan ini dilaksanakan pada bulan Desember 2021 sampai dengan Maret 2022 di Laboratorium Kultur Jaringan Teknologi Benih, Fakultas Pertanian, Universitas Padjadjaran. Rancangan percobaan menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 9 perlakuan, yaitu konsentrasi NAA (0 mg L-1, 5 mg L-1, 10 mg L-1) dan CaP (0 mg L-1, 1 mg L-1, 2 mg L-1) yang diulang sebanyak 3 kali. Hasil penelitian menunjukkan penggunaan NAA 5 mg L-1 merupakan perlakuan terbaik dalam menunjang induksi kalus daun stroberi varietas Sweet Charlie secara in vitro, dengan parameter persentase membentuk kalus mencapai 100%, waktu muncul kalus pada 13,5 HST, diameter kalus sebesar 9,00 mm, bobot kalus sebesar 0,52 g dan persentase kalus bertekstur remah sebesar 50%.
PENGGUNAAN MIKROORGANISME LOKAL (MOL) SEBAGAI KOMPONEN PROBIOTIK UNTUK MEMPERCEPAT PERTUMBUHAN IKAN SIDAT (ANGUILLA MARMORATA)
Authors: Nawawi Nawawi , Sriwahidah Sriwahidah
Published: May 2024

Penelitian ini dilakukan dengan tujuan untuk mengetahui pengaruh mikroorganisme lokal (mol) sebagai komponen probiotik terhadap pertumbuhan ikan sidat (Anguilla marmorata) pada stadium elver. Hasil yang didapatkan diharapkan dapat menjadi bahan informasi tentang pemanfaatan mikroorganisme lokal yang diperoleh dari limbah buah-buahan  dalam pakan untuk ikan sidat.Penelitian ini menggunakan metode eksperimen dengan menggunakan rancangan percobaan pola Acak Lengkap. Perlakuan pada penelitian ini adalah penambahan larutan MOL ke dalam pakan ikan sidat pada taraf 2 ml/100 gram pakan (A), taraf 4 ml/100 gram pakan (B) dan taraf 6 ml/100 gram pakan (C) dan masing-masing perlakuan diulang 3 kali. Ikan Sidat  yang digunakan mempunyai berat rata-rata 46, 22 gram , dipelihara dalam waring  60 x 80 x 80 cm3sebanyak 9 buah dengan kepadatan 25 ekor/wadah dengan sistim air mengalir. Pemberian pakan dilakukan 2 kali setiap hari (pukul 08:00, dan 17:30 WITA).Penelitian berlangsung selama 6 minggu dan setiap minggu, ikan ditimbang untuk menyesuaikan jumlah pakan yang diberikan. Parameter yang diamati berupa pertambahan berat ikan sidat uji. Hasil penelitian menunjukkan bahwa pemberian mikroorganisme lokal (MOL) ke dalam pakan ikan sidat uji ternyata memberikan respon terhadap pertambahan berat ikan sidat uji.  Pemberian mikroorganisme lokal pada taraf 6 ml/100 gram pakan memiliki pertambahan berat tertinggi yaitu sebesar 166,74 gram, disusul perlakuan B (147,46 gram) dan terendah pada perlakuan A (119,23 gram ).
OPTIMASI PROSES EKSTRAKSI MINYAK IKAN METODE SOXHLETASI DENGAN VARIASI JENIS PELARUT DAN SUHU BERBEDA
Authors: Sahriawati Sahriawati , Daud Ahmad
Published: May 2024

Lipid merupakan senyawa organik yang tidak larut dalam air. Lipid larut pada pelarut organik non polar, seperti aseton, alkohol, eter, benzena, dan kloroform. Keberadaan lemak dalam suatu bahan pangan perlu dipertimbangkan konsentrasinya. Selain memiliki fungsi yang penting bagi tubuh, lemak juga memiliki efek negatif. Reaksi oksidasi dan hidrolisis hingga menyebabkan ketengikan pada ikan dan bahan pangan lainnya adalah efek negatifnya. Ekstraksi dilakukan untuk mengetahui konsentrasi lemak bahan pangan. Ekstraksi dengan soxhlet merupakan cara ekstraksi yang efisien dan efektif untuk menentukan kadar minyak atau lemak suatu bahan. Proses ekstraksi dipengaruhi oleh metode, pelarut, suhu, serta waktu ekstraksi yang akan berpengaruh terhadap konsentrasi serta kualitas ekstrak minyak yang dihasilkan. Tujuan penelitian ini adalah penggunaan beberapa jenis pelarut dan suhu ekstraksi yang berbeda dengan menggunakan metode soxhletasi. Untuk mendapatkan konsentrasi minyak ikan yang optimal serta kualitas minyak ikan terbaik berdasarkan kadar asam lemak bebas dan bilangan peroksida. Variabel pada penelitian ini adalah jenis pelarut (n-heksan, dietil eter, kloroform dan benzen) dan suhu ekstraksi (50oC, 60oC, 70oC, 80oC, 90oC). Hasil penelitian menunjukkan pelarut dietil eter pada suhu 80oC adalah perlakuan terbaik, yang menghasilkan konsentrasi minyak ikan sebesar 18,27%, bilangan peroksida 0,200 mek/kg, dan kadar asam lemak bebas 0,07% b/b.
PERTUMBUHAN, PRODUKSI, DAN VIGOR BENIH PADA BUDIDAYA TUMPANGSARI SORGUM-KEDELAI
Authors: Siantar Parulian Lumban , Pramono Eko , Hadi M. Syamsoel , Agustiansyah A
Published: May 2024

Monoculture development of sorghum faces obstacles due to limited land which causes competition in land use with other food crops. Intercropping as a way to overcome land scarcity creates competition between plant species/varieties. This experiment aimed to know effect of varietal combination of sorghum-soybean intercropping on growth, productivity, land equivalence ratio of the croping system. Other than to know the vigor of storability of sorghum seeds. This research was carried out in the farmland of Kuripan Hamlet, Sidodadi Village, Way Lima Subdistrict, Pesawaran District, Lampung Province (5,38° S, 105,03° E) and storage of sorghum seeds was carried out at the Seed and Plant Breeding Laboratory, Faculty of Agriculture, Lampung University, Bandar Lampung, Indonesia from March to December 2018. Single factor experiment with six levels of treatment were applied in a randomized complete block design (RCBD) with 3 replications. The six treatment were varietal combinations of intercropping of Numbu-Grobogan (S1K1), Numbu-Argomulyo (S1K2), UPCA-Grobogan (S2K1), UPCA-Argomulyo (S2K2), Numbu (S1), UPCA (S2), Grobogan (K1) and Argomulyo (K2). The size of the plot was 5 m x 5 m each. The results showed that the cultivation a varietal combination of sorghum-soybean intercropping affected significantly on the plant high, total normal seedling, and strong normal seedlings percentages. The cultivation also affected on seed weight per plant and seed number per plant. The value of land equivalence ratio (LER) this varietal combination intercropping were higger than 1.
KELAYAKAN PERMINTAAN KEDELAI (Glycine max L. Merril) DI KABUPATEN BUNGO
Authors: Fikriman F , Fahlevi Reza , Susilawati Widuri
Published: May 2024

Soybeans play a very important role as a food ingredient due to their nutritional value and high protein content. The purpose of this study is to analyze the influence of price, population and per capita income factors on soybean demand in Bungo District and to analyze the elasticity of soybean demand in Bungo District. The selection of places in Bungo Regency as the object of research was carried out purposively (deliberately) with consideration of the location of the study as one of the soybean producing regions and also the area that used soybeans as raw material for industrial products. The method used in this research is descriptive method of describing the analysis of the analysis itself where the data was collected factually from the Central Statistics Agency (BPS), the Food Crops Office and the Bungo Regency Industry and Trade Service Office which were then tabulated for analysis. There is no joint effect between soybean price variable (X1), population (X2) and per capita income (X3) on soybean demand dependent variable (Y), and only free income per capita variable which has partial effect on demand dependent variable soybeans and price elasticity are elastic with a value of 1.93, while income elasticity is inelastic with a value of 0.52.
Pengaruh Komposisi Media Tanam dan Konsentrasi Limbah Tahu Terhadap Pertumbuhan dan Hasil Tanaman Okra (Abelmoschus esculentus L.)
Authors: Nugraini Purwita Sari , Sumartono Gregorius Hadi , Tini Etik Wukir
Published: May 2024

Okra has many benefits as a functional food that can reduce blood sugar. The production of okra in Indonesian has not achieved maximum results, so needed a research to increase okra production. This study aims to find out the right composition of planting media, optimum concentration of organic tofu liquid fertilizer, determine the combination of planting media composition and concentration of organic tofu liquid waste fertilizer which can increase the growth and yield of okra plants. This research was conducted in Januari 2020 until April 2020 at the Greenhouse of the Organic Vegetable Pager Gunung, Melung village. Baturaden in Banyumas Regency. The experimental design used a Complete Randomized Block Design (RCBD) with 2 factors. The first factor is the composition of the planting medium, namely soil, soil + husk charcoal, soil + bokashi + husk charcoal. The second factor is the concentration of organic tofu liquid waste fertilizer, namely control, 20%, 40%, and 60%. The observed variables were plant height, stem diametre, number of leaves, leaf area, root length, flowering time, number of fruits, fruit weigh, plant fresh weight, plant dry weight. The data obtained were analyzed by DSTAAT. Further tests using DMRT at a level of 5%. The results showed that the best application media is soil + bokashi + husk charcoal which produces a plant height of 63.33 cm, stem diametre 10.11 cm, number of leaves 8.61 strands, leaf areas 1066.76 cm3, flowering time 46.97 day, number of fruits 3.38, fruit weight 41.48 g, fresh weight of plants at 102.01 g and dry weight of plants at 12.98 g. Provision of soil + husk charcoal produces a root length at 37.13 cm. Application of tofu waste fertilizer with a concentration was not able to increase the growth and yield of okra.
Studi Pertumbuhan Rumput Mulato pada Bulan Pertama Pasca Pemberian Pupuk Kandang Berbeda
Authors: Irwan Muh. , Rasbawati R , Asra Reza , Akhsan Fitriana
Published: May 2024

Ruminant livestock development is largely determined by the carrying capacity of feed sources because the availability of quality feed is a major factor of success. The quality of natural grass that has been relied on so far must be improved by utilizing superior grass which produces better biomass and nutrients. Mulato grass (Brachiaria hybrid cv. Mulato) is one of the superior grasses that has not been widely cultivated in South Sulawesi. This study aims to look at the growth of mulato grass fertilized with different types of manure. The research design applied was a completely randomized design (CRD) with 4 treatments of giving fertilizers and 3 consecutive repetitions consisting of no treatment, administration of goat feces, treatment of cow feces, and treatment of layer chicken feces. The variables observed were plant height, plant length, number of tillers, and number of leaves which were carried out every week after being uniform. The results showed that the use of cow feces gave the best results on all variables measured in details of the best plant height 44.2 cm, plant length 68.3 cm, 70 pieces, and 11.3 tillers.