1,720,967 research outputs found
Spatial Analysis of Physico-Chemical Parameters of Water and Soil in the Kuala Langsa Mangrove Ecosystem, Aceh
No full textMangrove ecosystems play a vital role in maintaining coastal ecological balance through their biological, hydrological, and economic functions. However, increasing anthropogenic activities such as aquaculture, settlement expansion, and infrastructure development have led to environmental degradation in the mangrove areas of Kuala Langsa, Aceh. This study aims to analyze the physicochemical characteristics of water and soil in three mangrove zones—ecotourism, residential, and airport areas—by measuring parameters such as temperature, oxidation-reduction potential (Eh), water and soil pH, salinity, and moisture content. Field sampling was conducted in situ in February 2024 using a purposive sampling method, while data analysis was performed descriptively and quantitatively. The results show that Station 1 (Mangrove Ecotourism Area) exhibited the best environmental conditions, with an average temperature of 30 °C, Eh of 141.67 mV, water pH of 7.14, soil pH of 6.34, salinity of 33‰, and soil moisture of 67.6%. Station 2 (Residential Area) experienced higher anthropogenic pressure, indicated by higher temperature (33.33 °C), negative Eh (-159.33 mV), and lower salinity (2‰). Meanwhile, Station 3 (Airport Area) showed stable environmental conditions with a positive Eh (115.33 mV), neutral pH, salinity of 2.5‰, and moisture of 32.33%. Overall, the Kuala Langsa mangrove ecosystem still demonstrates a good degree of ecological resilience, although some areas have experienced degradation due to human activities. This study highlights the importance of ecosystem-based adaptive management through domestic waste control, tourism activity regulation, and mangrove vegetation conservation as ecological buffer zones to sustain the environmental functions of coastal ecosystems
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
INOVASI DAN PENGUATAN RANTAI NILAI MELALUI DIVERSIFIKASI PRODUK DAGING RAJUNGAN PADA KELOMPOK PENGOLAH DAN PEMASAR HARAPAN IBU ACEH TAMIANG
Get PDFAbstrak: Aceh Tamiang memiliki potensi perikanan rajungan yang tinggi, namun pengolahan dan pemasarannya masih menghadapi berbagai kendala. Mitra dalam sehari mampu menghasilkan 70 kg daging rajungan tapi masih terkendala pada aspek produksi, pemasaran, serta keuangan. Mitra bernama Poklahsar Harapan Ibu (15 anggota, berdiri 2022) berlokasi di Desa Sungai Kuruk 3. Pengabdian ini bertujuan memperkuat kapasitas Poklahsar Harapan Ibu melalui inovasi produk rajungan kupas dan penguatan rantai nilai, dengan meningkatkan keterampilan produksi, pemasaran, dan manajemen keuangan. Kegiatan dilaksanakan lewat sosialisasi, workshop, demonstrasi, praktik langsung, dan pendampingan. Evaluasi menggunakan kuesioner pra–pasca, dengan keberhasilan ditandai peningkatan skor lebih besar dari 50%. Hasil menunjukkan 1) 85% mitra mengalami peningkatan pengetahuan tentang tata kelola produksi yang higienis, 2) 88% mitra mengalami peningkatan ketrampilan dalam pemasaran dan manajemen keuangan, 3) 78% mitra mengalami peningkatan kualitas dan kuantitas produk, 4) 70% mitra mengalami peningkatan jumlah omset. Program ini terbukti efektif memberdayakan kelompok mitra dan meningkatkan daya saing usaha olahan rajungan.Abstract: Aceh Tamiang has high potential for crab fisheries, but its processing and marketing still face various obstacles. Partners are able to produce 70 kg of crab meat per day but still face constraints in production, marketing, and financial aspects. The partner named Poklahsar Harapan Ibu (15 members, established in 2022) is located in Sungai Kuruk 3 Village. This community service aims to strengthen the capacity of Poklahsar Harapan Ibu through innovation of peeled crab products and strengthening the value chain, by improving production, marketing, and financial management skills. Activities are carried out through socialization, workshops, demonstrations, direct practice, and mentoring. Evaluation used a pre-post questionnaire, with success marked by an increase in scores greater than 50%. The results show 1) 85% of partners experienced increased knowledge of hygienic production management, 2) 88% of partners experienced increased skills in marketing and financial management, 3) 78% of partners experienced increased product quality and quantity, 4) 70% of partners experienced increased turnover. This program has proven effective in empowering partner groups and increasing the competitiveness of crab processing businesses
PENGARUH KEPADATAN YANG BERBEDA TERHADAP KELULUSHIDUPAN BENIH IKAN KAKAP PUTIH (Lates calcarifer) PADA SISTEM TRANSPORTASI TERTUTUP
Get PDFPenelitian ini dilaksanakan di Universitas Samudra dengan tujuan untuk mengetahui pengaruh kepadatan yang berbeda terhadap kelulushidupan benih ikan kakap putih (Lates calcarifer) pada sistem transportasi tertutup, benih ikan kakap putih diambil dari langsung dari balai BPBAP Ujung Batee, kemudian ditransportasikan kelangsa selama 10 jam perjalanan dan melakukan pengamatan kelangsungan hidup selama 7 hari pemeliharaan dalam wadah toples berukuran 25 L dengan setiap perlakuan yang berbeda dan diberi pakan, frekuensi pemberian pakan 3 kali sehari 08.00, 12.00 dan 17.00 WIB. Penelitian ini menggunakan metode eksperimental dengan menggunakan Rancangan Acak Lengkap (RAL) yang terdiri atas 4 perlakuan 3 kali ulangan yaitu P1= 60 ekor P2= 70 ekor P3= 80 ekor dan P4=90 ekor. Hasil dari penelitian tersebut berpengaruh nyata terhadap kelulushidupan benih ikan kakap putih, P2 (100%) merupakan perlakuan untuk kelulushidupan benih terbaik kemudian diikuti dengan P1, P3 dan kelulushidupan terendah pada perlakuan P4 yaitu 14,81%. Sedangkan TKO terendah terdapat pada perlakuan P1 yaitu 0,013 mg/l., sedangkan oksigen tertinggi terdapat pada P4 yaitu 0,040 mg/l
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