bluuebunny/crossref_metadata_2025 huggingface dataset:
PROFIL STATUS IDENTITAS REMAJA: ANALISIS KLUSTER BERDASARKAN TIGA DIMENSI IDENTITAS
Authors: Muttaqin Darmawan
Published: September 2022

Konsep pembentukan identitas telah berkembang pesat dan dapat dijelaskan dengan berbagai cara, seperti model tiga dimensi identitas yang lebih menekankan pada dinamika proses pembentukan identitas. Selain itu, model tiga dimensi identitas juga dapat digunakan untuk mengklasifikasikan lima status identitas yang meliputi achievement, early closure, moratorium, searching moratorium, dan diffusion. Penelitian ini bertujuan untuk mendeskripsikan profil status identitas remaja di Surabaya. Penelitian ini akan memaparkan profil lima status identitas berdasarkan tinggi dan rendahnya komitmen, eksplorasi mendalam, dan peninjauan kembali komitmen. Penelitian ini melibatkan 1468 remaja di Surabaya yang berusia 12-21 tahun (M =16.802, SD = 2.484). Pengambilan data dilakukan dengan metode convenience sampling dan menggunakan Utrecht-Management of Identity Commitments Scale versi Indonesia. Analisis data dilakukan dengan menggunakan K-Means Cluster untuk mengklasifikasikan lima status identitas berdasarkan skor komitmen, eksplorasi mendalam, dan peninjauan kembali komitmen. Hasil penelitian menunjukkan bahwa sebagian besar remaja berada pada status moratorium. Remaja dengan status moratorium cenderung untuk mengubah komitmen yang telah dimiliki sebelumnya dan kurang mencari berbagai informasi mengenai identitasnya. Oleh karena itu, temuan ini mengindikasikan bahwa sebagian besar remaja di Surabaya masih belum mencapai status identitas yang optimal. Selain itu, penelitian ini juga menemukan perbedaan status identitas berdasarkan jenis kelamin dan kelompok usia remaja. Secara umum, temuan penelitian ini perlu menjadi perhatian untuk orang lain yang signifikan bagi remaja seperti orang tua dan teman dalam menyediakan dukungan yang diperlukan remaja selama proses pembentukan identitas.
TERAPI KOGNITIF PERILAKU UNTUK MENURUNKAN IDE BUNUH DIRI PADA DEWASA: TINJAUAN LITERATUR SISTEMATIS
Authors: Abdillah Anang Arief , Herdiana Ike , Alfian Ilham Nur
Published: September 2022

Ide bunuh diri merupakan fase awal dari perilaku bunuh diri yang menyebabkan risiko besar kematian. Terapi kognitif perilaku merupakan terapi yang sudah lama dikembangkan untuk menangani masalah berkaitan dengan proses berpikir sehingga dinilai dan telah terbukti efektif untuk menurunkan ide bunuh diri. Terapi ini memiliki keterbatasan dibandingkan terapi lainnya karena beberapa hal di dalam dan di luar sesi terapi. Maka dari itu, studi dengan metode systematic literature review ini ingin memperoleh gambaran tentang proses terapi kognitif perilaku berdasarkan database terbaru. Penelitian ini menggunakan 7 database (Sage Journals, ScienceDirect, Psychiatry online, JAMA Network, Pubmed, Wiley Online Library, dan BMJ Open) dari 2010 hingga 2020. Terdapat 7 artikel dari 5.416 artikel yang diduga layak untuk ditelaah, pencarian dilakukan dari tanggal 1 Januari 2021 hingga tanggal 20 Februari 2021. Artikel-artikel tersebut menunjukkan bahwa terapi kognitif perilaku terbukti dapat menurunkan ide bunuh diri di beberapa populasi seperti tentara, pengguna layanan kesehatan, dan masyarakat umum yang bersedia untuk mendapatkan bantuan professional. Systematic literature review ini memaparkan variasi modul dan teknik terapi kognitif perilaku sehingga dapat menyesuaikan dengan kondisi, kebutuhan, dan waktu yang dimiliki oleh pasien. Terdapat 3 fase utama terapi kognitif perilaku, fase pertama berisi edukasi dan memahami kondisi klien, fase kedua menggunakan teknik kognitif untuk menangani pikiran otomatis, dan fase ketiga merancang strategi untuk mencegah kekambuhan.
Strategi Nation Branding Malaysia dalam Penggalakan Pariwisata Medis terhadap Publik Indonesia
Authors: Sarana Salsabila Annisa , Sari Viani Puspita
Published: September 2022

Penelitian ini bertujuan untuk mengetahui strategi nation branding Malaysia dalam menggalakan industri pariwisata medis terhadap publik Indonesia. Dalam menguraikan strategi nation branding Malaysia, peneliti menggunakan konsep elemen strategi nation branding oleh Keith Dinnie (2015) yang terdiri dari nation-brand advertising; public relations; online branding, social media, and mobile application; customer and citizen relationship management; nation-brand ambassadors; internal brand management; diaspora mobilization; nation days; the naming of nation-brands; performance measurements; dan institution involved in nations branding. Penelitian ini menggunakan desain penelitian kualitatif deskriptif dengan data yang didapatkan bersumber pada studi pustaka dan wawancara. Dalam penelitian ini ditemukan bahwa Malaysia melakukan berbagai strategi khusus yang ditujukan kepada publik Indonesia. Dari seluruh elemen strategi, kecuali elemen nation-brand advertising dan diaspora mobilization, sepuluh elemen strategi lainnya berperan dominan dalam keberlangsungan penggalakan pariwisata medis Malaysia terhadap publik Indonesia.
The Relationship Between Regulatory Requirements Reviews, Compliance Benefits and Costs: Evidence from Selected Commercial Banks in Tanzania
Authors: Majondo Safar Stephano , Mataba Lucas , Mmari Goodluck
Published: September 2022

The Central Bank of Tanzania (BoT) has undergone various bank regulations reviews at different periods of time including 2008 and 2014 reviews. After the reviews some banks have shown low compliances, collapsed and merged while others have shown high compliances and greater performance. This study therefore, intended to assess how commercial banks in Tanzania benefits from complying with new regulatory requirements and to determine to what extent does compliance costs affects banks performance. The study employed an exploratory research design using the sample size of 24 commercial banks selected from Dar es Salaam headquarters; however, only 13 key informants were successfully reached. Primary data were collected from compliance and risk management managers using interview guide. Thematic analysis was used for data analysis and findings from the study show that most banks have well benefited with the new regulatory requirements in terms of increase in profit, expansion of more branches, ATMs and increase in number of customers. Considering the compliance costs; findings show that to some extent some new regulatory requirements reviews have increased operating costs to most banks.  The study recommends that banks should carefully design strategies which will help them to control NPL, manage and increase more capital and liquidity requirements. To the regulator the study recommends that; BoT should think of reviewing liquidity requirements and cash reserve ratio which seem to be too high and costly for most banks to afford. The BoT can also introduce separate capital adequacy requirements as per bank size.
Physical Properties of Hybrid Epoxy Composites Reinforced with Carbon Fiber and Ceramic Particles
Authors: Hassan Ali Noor , K. Shihab Suha , Taha Mohamed Muzher
Published: September 2022

Hybrid polymer compounds have become modern times, as their applications have increased, especially those reinforced with fibers and molecules due to their high performance, which allows them to be used in different applications. In this research, the dependence of the thermal conductivity and density of epoxy compounds on the volume fraction ratio of the reinforcements including carbon fibers, silicon carbide and alumina will be discussed. new hybrid epoxy compounds have been developed. The epoxy compounds reinforced with plain weave carbon fibers with different volume fractions of micro-particles of silicon carbide and alumina were prepared by hand lay-up. The physical properties including thermal conductivity and density of hybrid epoxy compounds were determined experimentally. The results showed an increase in the thermal conductivity by increasing the proportion of silicon carbide and alumina without affecting the density of the epoxy compound. This high improvement in thermal conductivity with low density in these hybrid epoxy composites have been driven them as possible nominations for electronic devices. The optimum content of hybrid epoxy composite for electronic applications is at SiC 10% and Al2O3 5% with 15 carbon fiber and 70 epoxy. Thus, a new polymer-based compound with improved thermal conductivity for electronic applications was produced.
Structural Behavior of Reinforced Concrete Deep Beams with Inclined Circular Holes
Authors: H. Abdulabbas Abbas , A. Ismael Murtada
Published: September 2022

The loads in the deep beams are transmitted diagonally from the load area to the support area by means of the strut and the tie. It is characterized by having a small span to depth ratio. which causes the distribution of stresses to be non-linear within the beam, which motivates researchers to study the effect of the placing of longitudinal hollows and the extent to which these holes affect the behavior and distribution of stresses for these types of beams. In addition to the advantages added by longitudinal hollow to the beam such as reducing weight and passing various electrical and mechanical services...etc. This study investigated the effect of making longitudinal circular holes (with a diameter of 50mm) with a slope on the structural behavior of three deep beams with a solid sample as a reference where the slope used was 0%, 4.3%, and 7.8%. The results showed that making holes reduces the load capacity of the deep beam, a decrease in the failure load was observed by 7.56%, 8.96%, and 11.2% for hollow beams with a slope of 0%, 4.3%, and 7.8%, respectively. Also, the appearance of flexural cracking increased by 2.66%, 2.66%, and 6.66%.and 2.14%, 3.52%, and 7.14%, respectively, for shear cracks. While the effect was small for the neutral axis location as well as for the vertical deflection.
Analytical Approximate Solutions of Nonlinear Fractional-Order Nonhomogeneous Differential Equations
Authors: K. Iyanda Falade , K. Adio Adesina , Nuru Muazu  , Muhammad Abdullahi
Published: September 2022

Computational simulation of natural phenomenon is currently attracting increasing interest in applied mathematics and computational physics. Mathematical software for simulation is limited by the availability, speed, and parallelism of high-performance computing. To improve the performance and efficiency of some numerical techniques, a step-by-step approach to mathematical software coding is needed to build robust parameter-oriented problems. Therefore, this article aims to present and apply the Adomian decomposition algorithm coded by the MAPLE 18 software package for the solutions of nonlinear fractional-order differential equations in applied physics and engineering sciences. The present technique is used without linearization or slight disturbance of nonlinear terms, which confirms the strength, accuracy, and simplicity of the algorithm. The two test problems are considered for different initial conditions and the solutions obtained show that the Adomian decomposition algorithm is fast, easy, stable in good agreement with analytical techniques and that a good computational approach to fractional-order value problems arising in applied mathematics and engineering sciences.
Factors Affecting Firm Efficiency Of Manufacturing Companies Listed In Indonesia Stock Exchange
Authors: Kiky Agustina  , Alda Luppianti  , Susy Muchtar
Published: September 2022

This study aims to analyze the effect of financial ratios on company efficiency. This study was conducted using a data sample of 29 manufacturing companies in the various industrial sub-sectors listed on the Indonesia Stock Exchange (IDX) within a reporting period of 5 years (2016 – 2020). The sampling technique uses purposive sampling and uses panel data regression analysis methods. The independent variables in this study consist of leverage, tangibility, working capital, liquidity, productivity, and profitability, while the dependent variable is firm efficiency. The results show that leverage, tangibility, liquidity, and productivity have a significant negative effect on firm efficiency, while working capital, gross profit, and return on equity have no effect on firm efficiency. This finding is expected to be a reference for manufacturing companies in the various industrial sub-sectors in improving company efficiency.
Keberhasilan Pelatihan Kewirausahaan bagi Wirausaha Baru (WUB)
Authors: Virianita Ratri , Saleh Amiruddin , Warcito  , Mintarti  , Asikin Syaeful , Sjafri M. Hajat
Published: September 2022

This study aims to evaluate the effectiveness of entrepreneurships training for new entrepreneurs using the CIPP model (Context, Input, Process and Product). Data collected by questionnaires from 164 training participants who were randomly selected proportionally according to participant’s district origin in Bogor Regency West Java. The results showed that the Entrepreneurships Training for New Entrepreneurs was declared effective in the Context, Input, and Process dimensions. However, in the Process dimension, the Entrepreneurships Training for New Entrepreneurs is less supported by the availability of facilities and infrastructure, the suitability of learning media and learning methods. As for the Product dimension, the Entrepreneurships Training for New Entrepreneurs is less effective, especially in changing the mental attitude of training participants, application of skills and business performance of training participants. In general, the implementation of the Entrepreneurships Training for New Entrepreneurs can be declared effective. The recommendations that can be conveyed is the need to improve the quality of the implementation of Entrepreneurships Training for New Entrepreneurs in the future.
Paper Trails: Migrants, Documents, and Legal Insecurity. Horton, S. B., & Heyman, J. (Eds). Duke University Press, 2020, 242 pp.
Authors: King-Savic Sandra
Published: September 2022

book review
Analisis Kebijakan Kewirausahaan Nasional Di Metaverse
Authors: Azzam Abdurrofi Abdullah
Published: September 2022

Metaverse as a digital phenomenon has had an impact on global life since the Covid-19 pandemic took place. Almost all countries experienced disruption in various sectors. One of the countries undergoing transformation is Indonesia. This transformation has become an attraction for researchers to examine the steps taken by the Indonesian government to address the demand for national entrepreneurship in the Metaverse. Moreover, the metaverse has both opportunities and challenges. This study focuses on the public policy dimensions of the Indonesian government in dealing with national entrepreneurship and aims to analyze the factors that play a role in the effectiveness of implementing public policies in the use of the metaverse in Indonesia by using the policy implementation model offered by the Brian W. Hoogwood and Lewis A model. Guns. This study uses qualitative research methods with data collection by literature study. The results show that Indonesia has not optimally developed a national entrepreneurship policy in the metaverse.
Pengaruh Kualitas Pelayanan E-KTP Terhadap Kepuasaan Masyarakat Di Kabupaten Pulau Morotai Provinsi Maluku Utara
Authors: Hulahi Ekklesia , Pribadi Ulung , Rasyid Syamsul Bahri Abd , Pora Sahrul , Sari Inrinofita
Published: September 2022

The government as a public service provider where the community must be responsible must be responsible and continue to strive to provide the best services to improve public services. For this reason, the government trains digital-based public services so that government agencies can serve the community easily and quickly. So, in this study, it aims to see the effect of e-KTP service quality on community satisfaction in Morotai Island Regency in North Maluku Province and this study uses quantitative methods to determine the quality of services that make the most impact on people's satisfaction. The sample drawn is 100 people. The data collection technique used is a survey technique, in which data is collected through the distribution of online questionnaires (Google forms). The results show that the evidence obtained from physical evidence, impact, strength, assurance and empathy has been applied in the effect of e-KTP services on community satisfaction carried out by the Ministry of Population and Civil Registration of Morotai Island Regency. There are two variables that have a positive and significant influence on other variables, namely service and empathy for community satisfaction in e-KTP. Meanwhile, three other variables that do not have significant variables are the capacity and guarantee of community satisfaction in the e-KTP service provided by the Morotai Island government. And to improve the quality of E-KTP services from the population and the Morotai Island Civil Registry Office to examine the variables that are at the center of this research, especially on variables that have a significant negative effect (physical evidence, arrests, and guaranteed), so they can comply with the rules and mechanisms in improving the quality of e-KTP services to the satisfaction of the community.
La erosión digital como problema para la lectura crítica de literatura contemporánea
Authors: Mora Vicente Luis
Published: September 2022

Una de las críticas más sostenidas a los procesos digitales es la alta inestabilidad de algunos de sus repositorios, que pueden producir el olvido digital y la consiguiente pérdida de la “memoria del recuerdo” (Manfred Osten, 2008), con profundos daños para el archivo cultural (Groys, 2005). A ello se suman la perentoriedad y posible desaparición de los perfiles, tanto reales, como imaginarios o sostenidos por avatares (Escandell, 2014), como bots literarios, cuya pérdida hace ilegibles algunos proyectos literarios en red, por eclipsarse con ellos no sólo el texto, sino también la programación de la que en algunos supuestos trae causa (Morales Sánchez, 2018). Frente a este problema, relacionado con los de ecdótica tradicional, se propone el investigador literario debe generar sus propias réplicas del archivo cultural, lo que produce un problema añadido: la imposibilidad, en ciertos casos, de confrontar los originales con los archivos salvados.
Predictive Analysis of Academic Performance in Peruvian Children: The Role of Effortful Control and School Liking
Authors: Alfaro Cardenas Pedro Fernando , Guimet Castro Marisut , Malaspina Quevedo Martín
Published: September 2022

Introduction.  In Peru, there are few studies that include individual differences between students to explain their academic performance at the beginning of formal schooling. For that reason, the aim of the present study was to predict the perceived academic performance of a group of students based on the following variables: effortful control (EC) and school liking (SL).
 
Method.  A sample of 423 students, between 5 and 8 years old (M = 6.29, SD = 0.89), was gathered from public schools in socioeconomically disadvantaged areas in Lima. A total of 45 teachers gave information about their perceptions regarding the study variables in their respective students.
 
Results.  The hierarchical linear regression analysis results show that both effortful control and school liking are positive and significant predictors of perceived academic performance, even after controlling for students’ cognitive skills and their mothers’ educational level.
 
Discussion and Conclusion.  Possible explanations for these findings and their relevance in the Peruvian context are discussed.
Adaptation and Validation to Spanish elementary school children of the Academic Self- Regulation Questionnaire (SRQ-A)
Authors: Conesa Pedro , Duñabeitia Jon Andoni
Published: September 2022

Introduction. The assessment of student motivation can be a powerful tool for understanding the factors that can influence the school environment, where students, families, teachers, psychologists or administration can develop interventions related to the improvement of learning through the motivational style based on the Self-Determination Theory (SDT). The present study aims to offer a Spanish version of the Academic Self-Regulation Questionnaire (SRQ-A), one of the most widely used instruments worldwide to measure academic motivation.
Method. A confirmatory factor analysis (CFA) was conducted on a sample of 1343 elementary school students aged 8 to 13 years. To analyse the divergent validity, a correlation analysis was carried out between the four-factor model of the SRQ-A and to analyse its reliability, Cronbach's alpha and McDonald's omega were used. Also, its invariance was tested taking gender and grade as reference. Finally, in order to analyse its convergent validity, a Pearson correlation of the motivational regulatory styles with the level of satisfaction of basic psychological needs was carried out.
Results. A good convergent and discriminant validity of the reduced Spanish version of the SRQ-A was shown, as a positive correlation was observed between the most self-determined styles and the level of satisfaction of autonomy, competence and relatedness needs. A multiple-group CFA showed that the structure of the four-factor model did not vary according to gender or grade level.
Discussion or Conclusion. The Spanish version of the SRQ-A demonstrates that it is a reliable instrument for measuring academic motivation described in the TAD in elementary school students.
Multifidelity Aeroelastic Model for Corrugated Morphing Structures
Authors: Soneda Kensuke , Yokozeki Tomohiro , Imamura Taro , Tsushima Natsuki
Published: September 2022

In this paper, an efficient aeroelastic model for morphing structures with corrugated panels is proposed, combining different fidelities of aerodynamic models. A finite element method with an actuation model is used to analyze the structural deformation of morphing structures. A vortex lattice method and Cartesian-grid-based computational fluid dynamics are individually coupled with the structural model to build the medium- and high-fidelity aeroelastic models. Three different morphing cases are simulated with the two fidelities of aeroelastic models to understand the influence of the model fidelity on the simulation results. Based on the comparison study, a new efficient aeroelastic model is proposed where the medium-fidelity aeroelastic model speeds up the calculations in the aeroelastic loop and the high-fidelity aeroelastic model computes accurate aerodynamic characteristics and necessary actuation loads. Computational time of the proposed method is half of the high-fidelity model while maintaining the computational accuracy.
Experimental and Numerical Investigation of Stall on the NACA 64(3) – 418 Airfoil
Authors: Ehrle Maximilian , Romblad Jonas , Waldmann Andreas , Weihing Pascal , Lutz Thorsten , Krämer Ewald
Published: September 2022

In this paper, measurements of the stall of a NACA [Formula: see text] airfoil section are presented and compared to a simulation with a hybrid Reynolds-averaged Navier–Stokes (RANS)/large-eddy simulation (LES) model with the goal of gaining deeper insight into the flow physics of a stall cell and the turbulent wake in such conditions. Detailed measurements of the evolution of the velocity deficit and turbulence within the wake along with surface pressure measurements and flow visualization provided a comprehensive database for code validation and flow physics studies. The measurements in the Laminar Wind Tunnel of the Institute of Aerodynamics and Gas Dynamics were performed at a Reynolds number of [Formula: see text] and comprised surface pressures, oil flow surface visualizations, and hot-wire measurements of the wake. The results at [Formula: see text] were used as validation data for a hybrid RANS/LES run at the same flow conditions. It was shown that the Bernoulli-based detached eddy simulation (BDES) model, which uses a shielding function based on a localized Bernoulli formulation, combined with effective gray area mitigation can capture the stall cell pattern and the point of flow separation at an angle of attack of [Formula: see text]. Furthermore, the velocity deficit and the Reynolds stresses in the wake show good agreement between simulation and experiment under these conditions.
IMPLEMENTASI KEBIJAKAN PENATAAN DAN PEMBINAAN PASAR TRADISIONAL DI KECAMATAN SAMARANG KABUPATEN GARUT (STUDI PASAR WISATA SAMARANG)
Authors: Rustiana Erna , Kania Ikeu , Nisrinna Anisa
Published: September 2022

Penelitian dilatarbelakangi upaya pengelolaan pasar oleh pemerintah Kabupaten Garut dalam rangka memenuhi standar kenyamanan bagi para pembeli maupun pedagang di pasar, serta untuk meningkatkan perekonomian masyarakat sehingga berdampak pada kesejahteraan masyarakat di bidang ekonomi. Permasalahan yang muncul adalah belum terbitnya landasan hukum yang jelas dalam tata kelola pasar wisata, kurangnya kesadaran masyarakat untuk menjaga fasilitas pasar, dan pengelolaan pasar masih belum baik. Penelitian ini bertujuan untuk mengetahui implementasi kebijakan penataan dan pembinaan pasar tradisional di Kabupaten Garut dengan objek Pasar Wisata Samarang. Metode penelitian menggunakan pendekatan kualitatif deskriptif, pengumpulan data dilakukan melalui observasi, wawancara dan dokumentasi. Hasil penelitian menjelaskan bahwa implementasi penataan dan pembinaan pasar tradisional belum dilaksanakan secara optimal, dilihat dari sasaran dan tujuan yang belum memberikan arah kebijakan yang jelas,  belum didukung sumber daya yang handal dan kompeten, serta belum adanya pembinaan yang baik kepada para pedagang terkait optimalisasi pemanfaatan pasar wisata Samarang sebagai center of market Kabupaten Garut. Kesimpulannya faktor penghambat implementasi kebijakan disebabkan kurangnya kesadaran masyarakat tentang kebersihan, adanya rangkap jabata, proses rekrutmen pegawai belum dijalankan secara professional, dan dibutuhkan pembinaan yang jelas kepada pedagang dan pembeli tentang pengelolaan pasar yang berkualitas.
PENYUSUTAN ASET TETAP DENGAN MENGGUNAKAN METODE GARIS LURUS PADA BADAN KEUANGAN DAN ASET DAERAH KABUPATEN BANDUNG
Authors: Nurul Aida Mutia Hanifah , Abdal Abdal , Muslim Jaliludin
Published: September 2022

Penyusutan aset tetap merupakan aspek penting yang perlu diperhatikan, karena untuk memberikan nilai wajar aset tetap sesuai dengan umur ekonomisnya dalam Laporan Keuangan Pemerintah. Badan Keuangan dan Aset Daerah Kabupaten Bandung telah melakukan penyusutan aset tetap. Namun dalam pelaksanaannya masih terdapat kendala. Tujuan penelitian ini untuk mengetahui dan mendeskripsikan sejauh mana penerapan dan perhitungan aset tetap pada Badan Keuangan dan Aset Daerah Kabupaten Bandung telah terealisasi secara efektif dan tepat guna, serta apa saja kendalanya. Metode penelitian yang digunakan dalam penelitian ini adalah penelitian kualitatif verifikatif, pengumpulan data dilakukan melalui observasi, wawancara, dan dokumentasi. Hasil penelitian menunjukkan bahwa penyusutan aset tetap pada Badan Keuangan dan Aset Daerah Kabupaten Bandung berpedoman pada Peraturan Bupati Nomor 60 Tahun 2015 dan memenuhi empat syarat dalam menerapkan penyusutan, yaitu nilai perolehan, nilai sisa, umur ekonomis, dan pola penggunaan. Namun masih terdapat permasalahan yang perlu diperbaiki yaitu penggunaan metode garis lurus yang dirasa kurang efektif sehingga metode saldo menurun ganda lebih baik digunakan pada Badan Keuangan dan Aset Daerah Kabupaten Bandung, karena dari hasil perhitungan aset tersebut biasanya efektif dan maksimal digunakan pada tahun-tahun awal, maka jika pada tahun-tahun berikutnya keadaan aset tetap menurun, dapat diambil tindakan yang tepat untuk memperbaikinya.
ANALISIS KUAT TEKAN DAN KUAT LENTUR BETON BERSERAT POLYMERIC SEBAGAI MATERIAL PERKERASAN KAKU (RIGID PAVEMENT)
Authors: Saepudin Uu , Hartati Gini , Nur Bakri Syahban
Published: September 2022

Salah satu sifat penting beton adalah daktilitas. Daktilitas beton yang rendah memiliki penurunan kekuatan tekan yang cepat pada daerah beban pascapuncak, sehingga menyebabkan keruntuhan terjadi tiba-tiba. Penambahan serat yang mempunyai modulus elastisitas yang lebih rendah dari modulus elastisitas matrik beton diharapkan dapat membuat beton lebih daktail. Penggunaan serat untuk memperkuat material yang getas telah lama dikenal. Serat yang umum dipergunakan antara lain terbuat dari baja, polymer atau fiber glass. Salah satu jenis serat yang dapat dipakai adalah serat polymeric. Hasil pengamatan di lapangan, bahwa serat polymeric dapat memperbaiki kinerja beton.

Tujuan  penelitian ini adalah mengetahui pengaruh penambahan serat polymeric terhadap kuat tekan dan kuat lentur beton dan mengetahui kadar penggunaan serat polymeric yang optimum sehingga dihasilkan kuat tekan dan kuat lentur beton maksimum sebagai material perkerasan kaku (rigid pavement). Metode yang digunakan dalam penelitian ini adalah metode eksperimen. Penelitian dirancang dengan 5 perlakukan untuk uji kuat tekan dan 5 perlakuan untuk uji kuat lentur, masing – masing di ulang 3 kali. Perlakuan yang diuji cobakan yaitu beton dengan penambahan serat polymeric 0%, 2%, 4%, 6% dan 8%.

Hasil penelitian menunjukan bahwa penambahan serat Polymeric berpengaruh terhadap kuat tekan dan kuat lentur beton, di mana terjadi kenaikan kuat tekan dan kuat lentur beton pada variasi penambahan serat Polymeric 2% dan 4%  dengan menghasilkan kuat tekan beton pada umur 7 hari sebesar 18,89 Mpa dan 19,48 Mpa, sedangkan pada umur 28 hari sebesar 29,06 MPa dan 29,97 Mpa serta menghasilkan kuat lentur beton pada umur 7 hari sebesar 2,31Mpa dan 2,53 Mpa, sedangkan pada umur 28 hari sebesar 3,55 Mpa dan 3,89 Mpa, ini memenuhi kuat lentur yang disyaratkan sebesar 3,78 Mpa ( memenuhi standar sebagai material perkerasan kaku). Penambahan serat Polymeric yang optimum adalah 2.8% menghasilkan kuat tekan beton maksimum sebesar 29,45 MPa dan kuat lentur beton maksimum sebesar 3,73 Mpa.
Variation of Torg-Pavlov ratio with age, gender, vertebral level, dural sac area, and ethnicity in lumbar magnetic resonance imaging
Authors: Qudsieh Hana’ , AL-Rawashdeh Israa , Daradkeh Abdallah , Abualnadi Tareq , Al Tah Basil
Published: September 2022

Objectives:

The objectives of the study were to provide normal values of the Torg-Pavlov ratio (TPR) of the lumbar spine in magnetic resonance imaging (MRI) for the Jordanian population and examine differences observed according to factors including age, gender, lumbar level, dural sac area, or ethnic group.

Material and Methods:

Two hundred and eighteen lumbar MRIs from the Picture Archiving and Communication System were reviewed. These were collected from three main governmental hospitals, in North, Central, and South of Jordan. The mid-sagittal diameters of the vertebral body, spinal canal, and dural canal area were measured at all levels. Patients’ gender and age were documented as well. Exclusion criteria were kyphoscoliosis alignments disorders, lumbar spinal canal compression regardless of the cause, vertebral bony disease (including fractures), and the presence of technical artifacts. Statistical analyses used descriptive and correlational methods. Comparisons were made between genders, age groups, lumbar level, dural sac area in the study population using independent t-test and one-way ANOVA tests, and between ethnicities by reviewing previous reports on subjects of different ethnicities.

Results:

The mean TPR ratio for the study participants was 0.4502 ± 0.097. The value of TPR was widest in the 20–29-year-old group at all vertebral levels and in both males and females. Females had a significantly wider TPR than males (P = 0.003) in all age groups. TPR differed significantly between the five vertebral levels (P = 0.026). The difference in TPR between age groups was not statistically significant. TPR showed a positive significant correlation with dural sac (r = 0.203, P = 0.003). Comparison with the previous literature demonstrated variation in the TPR where Jordanian population had a lower TPR in comparison with Negros and Caucasoids whereas similar to Koreans, especially in females.

Conclusion:

There are significant differences in TPR according to gender, dural sac area, lumbar spinal level (except between L1 and L2), and ethnic group, but no significant difference with the age was found. The present study has identified normal values of Torg’s ratio in the Jordanian population. Although the study may not be able to provide clear guidelines for use in clinical practice, it has still highlighted possible between countries variations and has identified differences in these values to different factors. Implications on clinical practice could be reflected on the diagnosis of lumbar spinal stenosis or on predicting the prognosis of lumbar spine injury.
Orthokeratology as a part of functional and pathogenetic treatment of progressive myopia
Authors:   The S. Fyodorov Eye Microsurgery Federal State Institution, Tambov branch, Tambov, Russian Federation, Matrosova Y.V. ,   FSBEI HPE «Tambov State University named after G.R. Derzhavin», Medical Institute, Tambov, Russian  Federation, Fabrikantov O.L. ,   The S. Fyodorov Eye Microsurgery Federal State Institution, Tambov branch, Tambov, Russian Federation,   FSBEI HPE «Tambov State University named after G.R. Derzhavin», Medical Institute, Tambov, Russian  Federation
Published: September 2022

Purpose. To study the effect of orthokeratological correction (OK-correction) on the indicators of accommodation function and the gradient of myopia progression. Material and methods. We observed 100 patients (200 eyes) aged 6 to 18 years, wearing OK lenses. Patients were divided into subgroups by age: from 6 to 12 years and from 12 to 18 years old. In all patients the reserve of relative accommodation (RRA), the volume of absolute accommodation (VAA) were determined, as well as the eye length by optical biometry. These studies (except for OBM) were performed before fitting the OK-lenses, in 1 month and in 3 months of wearing lenses. OBM was performed on the IOL-Master device (Carl Zeiss, Germany) before the selection of lenses and after 1 year of using them. Results. All patients showed an improvement in the function of the accommodative apparatus and a decrease in the annual gradient of myopia progression: after 1 month of wearing OK-lenses, there was an increase in the RRA value in both age groups at all degrees of myopia. In 3 months of wearing OK-lenses, the RRA value reached the level of the age norm, regardless of the magnitude of the initial ametropia. The vast majority of patients showed an increase in the axial length of the eye. The annual progression gradient in patients of all groups was significantly less than in patients without OK-correction. Conclusions. Orthokeratology is an effective technique that contributes to the correction of functional disorders of accommodation in myopia and reduces the rate of its progression in children and teenagers. Keywords: orthokeratology, myopia, annual gradient of progression, peripheral defocus, optical biometry, accommodation.
Structure peculiarities of lens in intumescent cataract
Authors:   The S. Fyodorov Eye Microsurgery Federal State Institution, Tambov branch, Tambov, Russian Federation, Pirogova E.S. , Fabrikantov O.L. ,   The S. Fyodorov Eye Microsurgery Federal State Institution, Tambov branch, Tambov, Russian Federation,   FSBEI HPE “Tambov State University named after G.R. Derzhavin”, Medical Institute, Tambov, Russian Federation, Nikolashin S.I. ,   The S. Fyodorov Eye Microsurgery Federal State Institution, Tambov branch, Tambov, Russian Federation,   FSBEI HPE “Tambov State University named after G.R. Derzhavin”, Medical Institute, Tambov, Russian Federation
Published: September 2022

Purpose. To study the structure of the swelling lens, the dependence of its anatomical parameters on the nucleus sizes and density, patients' age. Material and methods. 64 patients with intumescent mature cataract were examined. All patients underwent phacoemulsification with a two-stage continuous circular capsulorhexis. After the 2–2.5 mm capsulorhexis had been created, the liquid lenticular masses were removed from the anterior and posterior lens compartment with the aspiration/irrigation system. Visually we determined the size of the nucleus, its color and density according to Buratto's classification. Results. When performing this work four types of the swelling lens structure were detected. Type I – a small emerging white nucleus with large amount of liquid lenticular masses in the anterior and posterior lens compartment, II degree of density according to Buratto's classification. The mean age was 49.12 ± 3.11 years old. The related ophthalmic diseases accounted for 36.4 %. Type II – a large white nucleus with the presence of liquefied lenticular masses in the anterior and posterior lens compartment. III degree of density according to Buratto's classification. The mean age was 71.15 ± 5.07 years old. Associated diseases – 65 %. Type III – a large brown nucleus with the presence of liquefied lenticular masses in the anterior and posterior lens compartment. IV degree of density according to Buratto's classification. The mean age was 75.87 ± 1.48 years old. Associated diseases – 79 %. Type IV – a small, very dense, brown nucleus with liquid lenticular masses. V degree of density according to Buratto's classification. The mean age was 77.34 0 ±2.47 years old. Associated diseases – 100 %. Conclusion. Four types of lens structure in intumescent cataract were described depending on the nucleus size, density, the amount of the lenticular masses. By means of UBM it was shown that intumescent cataract was accompanied by the alterations of the ocular anterior segment parameters, which depended on the type of lens structure. It was revealed that the types of swelling lens structure were directly connected to the patients' age: mean age of patients with type I – 49.12 ± 3.11 years old, with type II – 71.15 ± 5.07, with type III – 75.87 ± 1.48, with type IV – 77.34 ± 2.47 years old. Keywords: ophthalmology, intumescent cataract, types of lens structure.
Postoperative multimodal analysis results of surgical treatment of submacular hemorrhages
Authors:   N.I. Pirogov National Medical Surgical Center, Moscow, Russian Federation, Bosov E.D. , Fayzrakhmanov R.R. ,   N.I. Pirogov National Medical Surgical Center, Moscow, Russian Federation, Karpov G.O. ,   N.I. Pirogov National Medical Surgical Center, Moscow, Russian Federation, Kalinin M.E. ,   N.I. Pirogov National Medical Surgical Center, Moscow, Russian Federation
Published: September 2022

Objective. To evaluate the morphological and functional effectiveness of minimally invasive administration of recombinant prourokinase followed by endovitreal gas tamponade without vitrectomy in comparison with antivasoproliferative therapy in patients with submacular hemorrhages. Material and methods. Patients of the 1st group at the 1st stage underwent two-port 27 G surgery with subretinal injection of a solution of recombinant prourokinase 500 IU through a 38 G cannula with the introduction of up to 20% of the volume of the vitreal cavity of C2F6 gas. At stage 2, therapy with anti-vasoproliferative drugs was prescribed according to the treat and extend regimen. Patients of the 2nd group were prescribed intravitreal injections of antivasoproliferative drugs according to the standard scheme with the transition to the treat and extend mode after 3 loading injections. Results. In group 1, there was a pronounced positive trend in maximum corrected visual acuity (BCVA) over the entire observation period: on the 14th day after stage 1 of treatment, it was 0.18 ± 0.05 (p < 0.05 compared to before treatment), after 3 loading injections – 0.3 ± 0.1 and after 6 months – an increase in photosensitivity values up to 4.7 ± 2.2 dB was demonstrated (p < 0.05 in comparison with the values before treatment ) and up to 12.6 ± 4.6 in the 1st group (p < 0.05 in comparison with the indicators before treatment, the indicators of the 2nd group), respectively. An inverse correlation of functional parameters was noted against the background of depression of the central retinal thickness up to 222.0 ± 60.7 µm and the height of the neovascular membrane up to 72.0 ± 23.0 at the end of the observation. Conclusion. Combined treatment of patients with SMC on the background of AMD, including subretinal administration of tissue plasminogen activator against the background of antivasoproliferative therapy, improves morphofunctional results with a high frequency of complete dislocation of hemorrhages. The use of a combined technique provides 4-fold depression of the CTS and 2.8-fold elevation of CNV against the background of a 10-fold increase in BCVA. According to the results of microperimetry, there is a decrease in the zone of absolute scotoma by 4.7 times, with an increase in the total photosensitivity of the macular zone by 12.6 times. Postoperative appointment of antivasoproliferative therapy for 14 days ensures the preservation of the morphofunctional results achieved after. Keywords: submacular hemorrhage, tissue plasminogen activator, pneumodislocation
RESPONS TANAMAN KACANG HIJAU (Vigna radiata. L) TERHADAP PEMBERIAN AMELIORAN KATION POLIVALEN Cu2+, Fe3+, Zn2+ DAN KOMPOS PELEPAH KELAPA SAWIT PADA MEDIA GAMBUT
Authors: Nuramsul Kustiawan  , Siti Zahrah  , Maizar  , Tati Maharani
Published: September 2022

The purpose of this study was to determine the response of mung bean to the application of ameliorant polyvalent cations Cu2+, Fe3+, Zn2+ and Palm Oil Midrib Compost Fertilizer on Peat Media. The research was carried out in the experimental farm of the Faculty of Agriculture, Riau Islamic University, Pekanbaru from March to May 2020. The design used in this study was a factorial completely randomized design consisting of two factors. The first factor is the provision of ameliorant material (A) consisting of 4 levels of A0 (without ameliorant), A1 (Cu2+), A2 (Fe3+), and A3 (Zn2+) and the second factor is the provision of palm frond compost (K) consisting of 4 levels of K0 ( without compost) K1 (12 g/plant) K2 (24 g/plant) K3 (36 g/plant). Observational data were analyzed statistically and further test BNJ level 5%. The results of the study by interaction gave an influence on the observation of seed weight per plant, with the best treatment being the provision of ameliorant Cu2+ and oil palm midrib compost 24 g/plant (A1K2). The main effect of giving ameliorant material gave effect on all observation parameters, namely plant height, relative growth rate, speed of dry matter filling, effective seed filling time, flowering age, harvest age, seed weight per plant, percentage of empty pods, the weight of 100 seeds and root volume, where the best treatment is in the provision of ameliorant Cu2+ (A1). The main effect of oil palm midrib compost affects the observation parameters, namely plant height, relative growth rate, speed of dry matter filling, flowering age, harvest age, seed weight per plant, percentage of empty pods, weight of 100 seeds and root volume where the best treatment is in giving 24 g/plant (K2) of oil palm midrib compost.
STRATEGI PEMASARAN IKAN SALAI DI DESA KESUMA KECAMATAN PANGKALAN KURAS KABUPATEN PELALAWAN
Authors: Nia Oskarlina  , Saipul Bahri
Published: September 2022

Fresh fish from the catch that is processed into salai fish is a form of utilizing the potential of river natural resources in Kesuma Village. In its distribution, the salai fish business in Kesuma Village faces the problem of limited marketing reach. This study aims to analyze: (1) the current marketing mix strategy of the salmon business (2) Recommending the marketing strategy of the salai fish business in the future. This research was conducted for 6 months starting from November 2021 to April 2022. Sampling was carried out using the census method. The data analysis used consisted of the 7P, SWOT and QSPM approaches. The results showed that the condition of the salai fish business in Kesuma Village through the marketing mix produced a product with a distinctive taste and aroma, the price of the product was determined by the entrepreneur based on the type and number of fish caught, the business location was close to the river but far from crowds and markets, promotion still personal selling, always prioritizing polite and friendly service in the sales process, the process of getting the product can be through ordering or directly at the entrepreneur's house and the Sorek Satu Sunday market and the product has not been packaged. The results of the SWOT analysis show that the business is in quadrant I, namely the SO (Strength and Opportunities) strategy, namely increasing the quality and quantity of products offered, cooperation with restaurants and restaurants so that market share is wider, adding variants of product types and sizes. The priority strategy that has the highest level of attractiveness is the SO strategy, namely improving the quality and quantity of the products offered (STAS:5,39).
ANALISIS USAHATANI NANAS DI KELURAHAN MUNDAM KECAMATAN MEDANG KAMPAI KOTA DUMAI
Authors: Muhammad Alfian  , Elinur
Published: September 2022

Mundam Village is an area that is famous for its peatlands. Pineapple is a type of fruit that is very suitable for peatland types. This study aims to 1) Characteristics of farmers and pineapple farming profile, 2) Production costs, gross income, net income, and farm efficiency. This research was conducted for 7 months starting from June to December 2021, located in Mundam Village, Medang Kampai District, Dumai City. The location selection was done purposively with a simple random sampling of 47 farmers. The data used are primary and secondary. The data analysis used is descriptive, farming analysis, and cobb-Douglass function analysis. The results showed that: (1) Characteristics of pineapple farmers in Mundam Village are 41 years of average age, which means productive age, the average length of education for farmers is 8 years (SMP), average farming experience is 18 years, and average farming experience is 18 years. The number of members of the farmer's family is 4 people. While the business profile obtained the average land area is 1.62 ha, land status is borrow-to-use, farmers do not have a business license, the average working capital is 14,967,617/MT, production is 36,482 pieces and productivity is 22,276 pieces/arable /MT. (2) the production cost obtained is Rp. 18,559,530/MT, the gross income obtained by pineapple farmers in Mundam Village is Rp. 68,735,159/MT, net income is Rp. 50,175,619/MT, obtained an RCR (Revenue Cost Ratio) of 3.70, meaning that pineapple farming in Mundam Village is feasible to cultivate.
Relief and slope characteristics of Lohawati river catchment in Kumaun Himalaya, Uttarakhand
Authors: Bhasker Bisht , Joshi R.C.
Published: September 2022

Geomorphologists use river basin as an ideal unit of the earth surface for the study of its landforms. Relief and slope are essential factors which determine and control the origin and evolution of any river catchment. Relief and slope studies also highlight the facts about changing nature of the river catchment. The Lohawati River catchment is located in lesser Himalaya in Champawat district of Uttarakhand state. In the present study, an attempt has been made to study the relief and slope characteristics of the Lohawati river catchment using geospatial technique. The altitude of the catchment area decreases from west to east direction. The slope map indicates that Lohaghat and Champawat towns are situated in the gentle slope category. The very low dissection index and very low relative relief in the Champawat area and in some parts of Lohaghat at the western side of the catchment are characterized by more aggradation processes and are less prone to soil erosion. Relief profiles show the surface undulations because of erosion by Lohawati River and its tributaries.