bluuebunny/crossref_metadata_2025_split huggingface dataset:
Kinerja Tembok Laut Tipe Ruang Ganda Untuk Mereduksi Gelombang Laut Panjang Dan Ekstraksi Energi
Authors: Husain Firman 
Published: February 2024

Kerusakan pantai yang disebabkan oleh serangan gelombang laut telah meningkat secara signifikan pada saat ini. Hal ini akan berdampak pada hilangnya timpat tinggal dan sumber ekonomi masyarakat pesisir. Bahkan di beberapa kejadian juga telah memakan korban nyawa. Oleh karena itu maka pesisisr laut yang rentang terjadi kerusakan perlu dibuatkan sebuah tembok laut yang bisa menahan serangan gelombang laut baik pada tipe gelombang pendek maupun untuk tipe gelombang laut panjang yang biasanya dibangkitkan oleh angin badai. Pada penelitian ini sebuah tipe tembok laut dengan ruang ganda telah diuji. Dari hasil pengujian terlihat bahwa tembok laut jenis ini efektif untu bisa menahan serangan gelombang laut baik yang gelombang pendek maupun gelombang laut panjang karena keberadaan ruang ganda yang bisa memperluas range dari frekuensi gelombang sehingga tinggi gelombang yang mengenai konstruksi bisa dikurangi. Pada penelitian ini juga telah dikomfimasi bahwa nilai amplifikasi gelombang berkisar 2,5 kali dari tinggi gelombang datang, yang berarti energi gelombang dalam ruang tembok laut bisa untuk dimanfaatkan.
Kata Kunci: Pantai, Gelombang, Tembok laut dan Amplifikasi Gelombang
Nilai Tukar Nelayan Kabupaten Situbondo
Authors: Pahlewi Anita Diah , Ramli Ramli , Novianti Vita 
Published: February 2024

Nelayan sangat tergantung terhadap musim. Pengukuran terhadap kesejahteraan nelayan membutuhkan indikator yang secara cepat dan tepat untuk melihat gambaran kesejahteraan yang telah dicapai. Salah satu indikator yang dipercaya dapat digunakan untuk melihat kesejahteraan rumah tangga adalah indikator Nilai Tukar Nelayan (NTN). Tujuan dari penelitian Nilai Tukar Nelayan ini adalah mengetahui karakteristik nelayan dan pencapaian Nilai Tukar Nelayan di Kabupaten Situbondo sehingga dapat dimanfaatkan untuk memberikan masukan dalam formulasi sasaran dan penyusunan kebijakan untuk meningkatkan kesejahteraan nelayan. Metode yang digunakan dalam penelitian Nilai Tukar Nelayan ini ialah survei. Jumlah responden dalam Kajian Nilai Tukar Nelayan (NTN) ini sebanyak 189 responden. Karakteristik responden dalam kajian ini meliputi kelompok umur dan tingkat pendidikan. Karakteristik responden nelayan berdasarkan kelompok umur terdiri dari 43% responden nelayan berada pada kelompok umur 41 – 50 tahun, 22% kelompok umur 30-40 tahun, 20% kelompok umur dibawah 30 tahun dan paling sedikit 15% kelompok umur 51-60 tahun. Hasil analisis karakteristik responden nelayan berdasarkan Tingkat Pendidikan, mayoritas responden merupakan lulusan Sekolah Dasar (SD) kebawah yaitu sebanyak 69%, 23% lulusan Sekolah Lanjutan Tingkat Pertama (SLTP) dan hanya 8% yang pernah mengenyam pendidikan Sekolah Lanjutan Tingkat Atas (SLTA). Nilai NTN Kabupaten Situbondo periode Januari – Oktober 2022 adalah 1,043 atau nilai NTN tersebut berada disekitar angka satu yang berarti keluarga nelayan di Kabupaten Situbondo pada Tahun 2022 hanya mampu memenuhi kebutuhan hidupnya dan masuk kategori rentan miskin serta belum mampu mengkonsumsi kebutuhan sekunder atau tersier, untuk menabung dalam bentuk investasi barang.
GAMBARAN MAKNA HIDUP PADA PSK REMAJA YANG MENJALANI REHABILITAS DI PSKW ANDAM DEWI SOLOK
Authors: Zhafran Ezra Akbar  , Nurmina  
Published: February 2024

Prostitusi pada remaja sudah sangat mengkhawatirkan karena banyaknya kasus eksploitasi remaja. PSK remaja yang menjalani rehabilitasi karena ditangkap Satuan Polisi Pamong Praja (Satpol PP) akan menjadi sumber tekanan pada kehidupannya, terutama jika pelaku PSK masih remaja mereka cenderung lebih rentan mengalami berbagai dampak emosional dan psikologis yang negatif akibat hukuman seperti merasa bersalah, hilangnya kebebasan, adanya perasaan malu, sanksi ekonomi dan akan mempengaruhi penyesuaian fisik tetapi juga psikologis individu. Penelitian ini bertujuan untuk melihat gambaran makna hidup pada PSK remaja yang menjalani rehabilitas di PSKW Andam Dewi Solok. Penelitian ini menggunakan pendekatan fenomenologis dengan metode kualitatif. Pengumpulan data dilakukan dengan menggunakan teknik wawancara semi terstruktur kepada 2 (dua) orang subjek yang merupakan PSK remaja yang sedang menjalani rehabilitas di PSKW Andam Dewi Solok. Teknik analisis data pada penelitian ini menggunakan teknik Interpretative Phenomenological Analysis (IPA). Hasil penelitian ini ditemukan bahwa subjek PSK remaja yang sedang menjalani rehabilitas dapat mencapai 5 (lima) tahapan dalam penemuan makna hidup yang dikemukakan oleh Bastaman. Kemudian, faktor yang mempengaruhi makna hidup pada penelitian ini adalah pemahaman diri, berperilaku positif, pengakraban hubungan, pendalaman catur nilai, dan ibadah.
PENERAPAN ROUTE PELAYARAN KAPAL PENYEBERANGAN MERAK-BAKAUHENI DAN ARAH SEBALIKNYA TERHADAP TRAFFIC SEPARATION SCHEME (TSS) SELAT SUNDA
Authors: Nursyamsu  , Joko Sulistiono  , Sandi Wahyu Prabowo  
Published: February 2024

Pada dunia pelayaran, keselamatan kapal untuk mencapai pelabuhan
tujuan mempakan hal yang wajib terwujud agar misi transportasi orang maupun
barang dapat terpenulii. Keselamatan pelayaran mempakan keseluruhan proses
yang hams dijalani dari kapal sandar, kapal memuat, kapal berlayar ke pelabuhan
tujuan sampai kapal itu membongkar muatannya.
Pada saat kapal berlayar tentunya sangat diperlukan navigator yang
memiliki kompetensi untuk melayarkan kapal sesuai dengan ukuran dan daerah
pelayaran. Navigator akan memahami prosedur, ketentuan peraturan pencegahan
tubrukan di laut dengan ketentuan penunjang lainnya. Di dalam peraturan P2TL
aturan 10 tentang bagan pemisah lalu lintas atau Traffic Separation Scheme (TSS)
dibuat untuk membentuk alur pelayaran dengan arah yang sama sehingga dapat
mengontrol alur pelayaran kapal di perairan tersebut.
Indonesia mempakan negara kepulauan pertama di dunia yang memiliki
bagan pemisahan lalu lintas berdasarkan hasil keputusan sidang Plenary
International Maritime Organization (IMO) Sub Committee Navigation
Communication and Search and Rescue (NCSR).
Dikarenakan ramainya perairan ini maka kapal yang melintasi hams
berlayar dengan hati-hati serta menggunakan secara maksimal peralatan navigasi
yang ada. Kapal yang paling sering menggunakan jalur atau melintasi jalur
tersebut adalah kapal penyeberangan. Tentunya kapal-kapal ini harus senantiasa
menjalakan semua ketentuan jika berlayar pada jalur TSS selat sunda ini baik
penggunaan alur yang benar dan peralatan navigasi penunjang yang dibutuhkan
demi keselamatan pelayarannya.
Dalam penelitian ini menitik beratkan kepada penerapan peraturan TSS
bagi kapal penyeberangan dan peran dari VTS selat Sunda dalam mengontrol
kepatuhan kapal terhadap TSS ini.
The Influence of the Demographic Factors of Nigerian Dental Practitioners on their Perception of Accelerated Orthodontics
Authors: Okino Benjamin O. , Okino Chikamaram O. , Ututu Chinyere , Orikpete Mariam , Onyeaso Chukwudi O. 
Published: February 2024

Background: Although there are many studies on the reviving subject of accelerated orthodontics, there is paucity of information on the factors that could influence a dental practitioner’s perception of the concept.
Aim: To investigate the influence of the demographic factors of some Nigerian dental practitioners on their perception of accelerated orthodontics.
Materials and Methods: Electronic and physical methods of surveying the Nigerian dental practitioners were carried out between January and June 2023. The contents of the questionnaire involving their perception of accelerated orthodontics were analysed for associations with the participants’ demographics, using the IBM SPSS version 25. Descriptive statistics, the ANOVA and independent t-test were used with the significance level set at P< .05.
Results: No statistically significant associations were found between the participants’ demographics and their perception of accelerated orthodontics (P > .05), except for age group of 40-49 that revealed significant association with the local use of some medications intraorally (P<.05).
Conclusion/Recommendation: Generally, the participants’ demographics did not have significant influence on their perception of accelerated orthodontics, and further related studies are advocated.
Classification of Java Cities/Regencies Based on Human Development Index Using Discriminant Analysis and Naïve Bayes Classifier
Authors: Astrianka Orryza Oky , Efendi Achmad 
Published: February 2024

Aims: This research aims at grouping of cities/regencies on the island of Java, where the central government as well as the most densely populated island in Indonesia, using linear discriminant analysis (LDA) and Naïve Bayes Classifier (NBC).
Study Design: Quantitative design.
Place and Duration of Study: Sample: The data used in this study is secondary data from the Indonesian Central Statistics Agency (Badan Pusat Statistik, BPS) regarding the 2022 Human Development Index (HDI) from 119 cities/regencies on the island of Java. The data used are four HDI indicators as independent variables (long and healthy living, knowledge, and the dimensions of decent living standards) and the HDI value as the dependent variable.
Methodology: The grouping was carried out using LDA and NBC. LDA is a type of multivariate analysis used in the dependency method where the relationship between variables can be distinguished between the independent variable and the dependent variable. It aims at obtaining discriminant function equations to group cases into certain groups and to determine differences between groups based on independent variables. Meanwhile, the NBC method is a simple probability-based prediction technique based on the application of Bayes' theorem (Bayes' rule) with a strong assumption of independence.
Results: Both LDA and NBC can be used for prediction and classification. Based on the results of the discriminant analysis, three discriminant functions were formed to group cities/regencies on the island of Java into three HDI groups. In the NBC analysis, the prior probability value for the very high category HDI group was 0.211, the high category HDI group was 0.606, and the medium category HDI group was 0.183. The research results show that LDA is better than the NBC for grouping cities/regencies based on the 2022 HDI indicators with an accuracy rate of 72.92%. Meanwhile, the NBC analysis only provides an accuracy of 64.58%. Three discriminant functions have been obtained to group cities/regencies on the island of Java based on the largest discriminant score where life expectancy makes the largest contribution in distinguishing each group.
Conclusion: As a result, in this case LDA is a better classification method than the NBC. It is also of important to note medium class regions for further actions from stakeholders.
Identifying Sustainable Biomedical Solid Waste Management Practices in the Context of Limited Resources in Selected Healthcare Facilities in Douala Cameroon
Authors: Peter Nkwenti , Marie Etame Loe Gisele , Nga Nnanga 
Published: February 2024

Aims: To Identify sustainable Biomedical solid waste management practices in the context of limited resources in selected HCFs in Douala, Cameroon.
Study Design: A cross-sectional survey with quantitative and qualitative study design was adopted for data collection from workers in the HCFs and also identifying the process of waste management.
Place and Duration of Study: This study was carried out in the some selected HCFs in the Douala region of Cameroon between January 2023 to June 2023.
Methodology: Study respondents were working in different sections of the HCFs and comprised of the following categories: doctors, laboratory scientists, cleaners, nurses and administrative/clerical workers. Field visitations and interactions with HCFs officials took place during the random sampling technique which was used in determining the sample size of 200 workers, Out of the sample size of 200 who were given questionnaires in order to provide data for the study, 150 valid mail questionnaires were retrieved and used for analysis. Every questionnaire was verified by validity. There’s also questions related funds, facilities availability, training and personal protective equipment. All of the data were coded and analyzed. The results were calculated based on sums and percentages of variables with SPSS vers.26 software and chi-square analysis with the level significance of p-value less than 0.05 was analyze
Results: This finding could also indicate that imbibing sustainable biomedical wastes management practices increases with higher experience in the hospital. Furthermore, communal bin disposal of biomedical wastes was the only statistically significant category under disposal method, indicating that waste disposal may be lacking in terms of sustainable practices. [30] also identified biomedical wastes disposal in open dumps among health workers in Saudi Arabia, attributable to poor sustainable waste training and lack of regulatory frameworks. I PCA results indicate that there are two dimensions of prevalent biomedical wastes in the hospital studied, as explicated by the two components retained
Conclusion: The limited resources and government policies and local councils influences sustainable waste management practices and this paper aimed at identifying some of the solutions towards improving Sustainable waste management policies. The practice of biomedical waste management in the study area was low. Level of education, taking training on biomedical waste management, availability of color-coded three bins, and attitude of health care workers were significantly associated with biomedical waste management practices. Hence, in-service training is recommended to improve biomedical waste management practices.
Preliminary results on the Immobilisation of Radionuclides from Waters with Specific Adsorbers Based on Phosphate Salts
Authors: Valentini Ganzerli Maria Teresa , Maggi Luigino , Crespi Caramella Vera , Berzero Antonella 
Published: November 2004

AbstractThe present paper is focused on the ability of aluminium phosphate (ALPC), magnesium ammonium phosphate (MGPC), magnesium hydrogen phosphate (MGHPC), and calcium hydrogenphosphate(CAHPC), adsorbed onto charcoal, to immobilise actinides by adsorption from natural waters. The objective of this process is to evaluate the environmental pollution due to the actinides. Europium, thorium, protactinium, neptunyl, and uranyl ions were chosen to simulate actinides in the +3, +4, +5 and +6 oxidation state. The adsorbers were tested using natural waters samples. The adsorption trends and capacities were analysed. ALPC and MGPC exhibited a similar behaviour and adsorbed demonstrating that the +5, +4 and +3 actinide ions can be easily immobilised from natural waters and may be successfully used at pH 7—8. MGHPC may be used at a higher pH, whereas CAHPC is effective in the whole pH range. In all cases, thorium, protactinium and europium were strongly
Determination of Metal Components in Marine Sediments Using Energy‐Dispersive X‐Ray Fluorescence (ED‐XRF) Spectrometry
Authors: Tung Joanne Wai Ting 
Published: November 2004

AbstractA rapid energy‐dispersive X‐ray fluorescence (ED‐XRF) spectrometric method for the analysis of metal components of marine sediments has been presented. Calibrations were made using synthetic matrix. The agreement of the results for sediment standard reference materials with reference values is satisfactory. Major advantages of the nondestructive ED‐XRF technique over conventional chemical digestion methods include the applicability to analyzing the major oxide components, as well as to trace metals, and the avoidance of hazardous chemicals. The method has been applied to the routine analysis of Hong Kong marine sediment.
Separation of B6 Vitamers with Micellar Liquid Chromatography Using UV and Electrochemical Detection
Authors: Hadjmohammadi Mohammad Reza , Momenbeik Fariborz , Hoseinalizade Khorasani Jafar 
Published: November 2004

AbstractSeparation of six vitamers of vitamin B6 was performed by RP‐HPLC using micellar mobile phase, UV and electrochemical detection. Effect of temperature, type and amount of organic modifier in mobile phase on efficiency and asymmetry factor showed that, the appropriate conditions were temperature of 35 °C and 3.0‐5.0 % (v/v) 1‐butanol in mobile phase. Variations of selectivity factor versus 1‐butanol concentration, pH of mobile phase, and SDS concentration was investigated and the following optimized conditions were selected for the separation: 3.0 % (v/v) 1‐butanol, pH=5.5 and 65 mM SDS in mobile phase. Electrochemical behavior of vitamers in optimized mobile phase was investigated using cyclic voltammetry, and potential of +1.2 V versus Ag/AgCl(Sat.) was chose as working potential. Finally, separation of B6 vitamers using UV detection at 254 nm and electrochemical detection at +1.2 V was compared.
Risk and protective factors for Parkinson's disease: A study in Swedish twins
Authors: Wirdefeldt Karin , Gatz Margaret , Pawitan Yudi , Pedersen Nancy L. 
Published: November 2004

AbstractMany studies have shown a protective effect of cigarette smoking on Parkinson's disease. However, criticism has been raised concerning confounding by genetic factors. We investigated the associations between Parkinson's disease and smoking, alcohol, coffee, area of living, and education in a co‐twin control study. Because twins are matched for genetic and familial environmental factors, this design controls for confounding by these factors. We also examined control subjects unrelated to cases. Exposure information was taken from questionnaires answered in the 1960s and 1970s. Parkinson's disease cases were identified through the Swedish Inpatient Discharge Register (IDR) and the Cause of Death Register. In the unrelated control subject comparison, 476 Parkinson's disease cases and 2,380 control subjects were included. In the co‐twin control comparison, 415 same‐sex twin pairs were included. There was an inverse association between smoking and Parkinson's disease using unrelated control subjects and co‐twin control cases. There was no association between Parkinson's disease and alcohol, coffee, or area of living. High educational level was associated with Parkinson's disease in the unrelated control subject comparison but not in the co‐twin control comparison. We confirm the protective effect of smoking on Parkinson's disease and establish that the association is only partially explained by genetic and familial environmental factors. Ann Neurol 2004
Untreue Enzyme in der Biokatalyse: mit alten Enzymen zu neuen Bindungen und Synthesewegen
Authors: Bornscheuer Uwe T. , Kazlauskas Romas J. 
Published: November 2004

AbstractMit der Entdeckung hochstereoselektiver Enzyme mit breiter Substratspezifität hat sich die Biokatalyse in den letzten Jahrzehnten rasant entwickelt. Ein neues Forschungsgebiet beschäftigt sich mit Enzymen, die eine breite Reaktionsspezifität bei der Katalyse alternativer Reaktionen aufweisen. Oft unterschätzt, spielt diese katalytische Promiskuität (catalytic promiscuity) eine natürliche Rolle in der Evolution und in manchen Fällen auch in der Biosynthese von Sekundärmetaboliten. In diesem Kurzaufsatz werden Beispiele für katalytische Promiskuität mit aktuellen und möglichen Anwendungen in der Synthese vorgestellt. Kombiniert mit Protein‐Engineering könnten dank dieser Eigenschaft die Verwendungsmöglichkeiten von Enzymen in der organischen Synthese deutlich erweitert werden.
Content independence in multimedia databases
Authors: de Vries Arjen P. 
Published: November 2004

AbstractA database management system is a general‐purpose software system that facilitates the processes of defining, constructing, and manipulating databases for various applications. This article investigates the role of data management in multimedia digital libraries, and its implications for the design of database management systems. The notions of content abstraction and content independence are introduced, which clearly expose the unique challenges (for database architecture) of applications involving multimedia search. A blueprint of a new class of database technology is proposed, which supports the basic functionality for the management of both content and structure of multimedia objects.
Evaluating image browsers using structured annotation
Authors: Müller Wolfgang , Marchand‐Maillet Stéphane , Müller Henning , Squire David McG. , Pun Thierry 
Published: November 2004

AbstractIn this article we address the problem of benchmarking image browsers. Image browsers are systems that help the user in finding an image from scratch, as opposed to query by example (QBE), where an example image is needed. The existence of different search paradigms for image browsers makes it difficult to compare image browsers. Currently, the only admissible way of evaluation is by conducting large‐scale user studies. This makes it difficult to use such an evaluation as a tool for improving browsing systems. As a solution, we propose an automatic image browser benchmark that uses structured text annotation of the image collection for the simulation of the user's needs. We apply such a benchmark on an example system.
The effect of extrinsic motivation on user behavior in a collaborative information finding system
Authors: Shapira Bracha , Kantor Paul B. , Melamed Benjamin 
Published: November 2004

AbstractIn collaborative information finding systems, evaluations provided by users assist other users with similar needs. This article examines the problem of getting users to provide evaluations, thus overcoming the so‐called “free‐riding” behavior of users. Free riders are those who use the information provided by others without contributing evaluations of their own. This article reports on an experiment conducted using the “AntWorld,” system, a collaborative information finding system for the Internet, to explore the effect of added motivation on users' behavior. The findings suggest that for the system to be effective, users must be motivated either by the environment, or by incentives within the system. The findings suggest that relatively inexpensive extrinsic motivators can produce modest but significant increases in cooperative behavior.
Quantitative assessment of image retrieval effectiveness
Authors: Smith John R. 
Published: November 2004

AbstractContent‐based retrieval (CBR) promises to greatly improve capabilities for searching for images based on semantic features and visual appearance. However, developing a framework for evaluating image retrieval effectiveness remains a significant challenge. Difficulties include determining how matching at different description levels affects relevance, designing meaningful benchmark queries of large image collections, and developing suitable quantitative metrics for measuring retrieval effectiveness. This article studies the problems of developing a framework and testbed for quantitative assessment of image retrieval effectiveness. In order to better harness the extensive research on CBR and improve capabilities of image retrieval systems, this article advocates the establishment of common image retrieval testbeds consisting of standardized image collections, benchmark queries, relevance assessments, and quantitative evaluation methods.