484 research outputs found
Non-abelian tri-vector deformations in d = 11 supergravity
No full text© 2020, The Author(s). A truncation of the SL(5) Exceptional Field Theory that allows to describe spacetimes of the form M4 × M7 with the 4-form flux on M4 is constructed. The resulting theory is used to test the recently proposed tri-vector generalisation of Yang-Baxter deformations applied to the AdS4 × S7 solution of d = 11 supergravity. We present two new supergravity solutions corresponding to non-abelian non-unimodular tri-vector deformations of AdS4 × S7
Tri-vector deformations in d = 11 supergravity
No full text© 2019, The Author(s). We construct a d = 11 supergravity analogue of the open-closed string map in the context of SL(5) Exceptional Field Theory (ExFT). The deformation parameter tri-vector Ω generalizes the non-commutativity bi-vector parameter Θ of the open string. When applied to solutions in d = 11, this map provides an economical way of performing TsT deformations, and may be used to recover d = 10 Yang-Baxter deformations after dimensional reduction. We present a generalization of the Classical Yang-Baxter Equation (CYBE) for rank 3 objects, which emerges from d = 11 supergravity and the SL(5) ExFT. This equation is shown to reduce to the d = 10 CYBE upon dimensional reduction
Pelatihan Pemahaman C++ Untuk Persiapan Olimpiade Sains Nasional Bidang Matematika Bagi Siswa SMA Maitreyawira Palembang
No full textSMA Maitreyawira Palembang adalah salah satu sekolah yang aktif dalam mengikuti Olimpiade Sains Nasional setiap tahunnya. Salah satu bidang Olimpiade Sains Nasional yang aktif diikuti oleh SMA Maitreyawira Palembang adalah matematika. Olimpiade Sains Nasional bidang matematika menuntut peserta lomba tidak hanya paham matematika tetapi juga logika pemrograman dengan menggunakan bahasa pemrograman C++. Hal ini menjadi latar belakang permasalahan yang dihadapi oleh SMA Maitreyawira Palembang, karena dalam proses pembelajarannya di sekolah tidak ada materi logika pemrograman terutama dengan bahasa C++. Kerjasama dalam bidang pengebdian masyarakat bersama Institut Teknologi dan Bisnis PalComTech menjadi solusi yang tepat untuk melaksanakan pelatihan pemahaman C++ dalam bidang matematika untuk persiapan Olimpiade Sains Nasional tahun 2023. Pengabdian masyarakat dilakukan dengan metode pelatihan terhadap lima orang siswa calon peserta Olimpiade Sains Nasional bidang matematika. Keberhasilan pengabdian masyarakat ini diukur dengan metode Total Sampling dengan menyebarkan kuesioner kepada lima orang siswa sebagai peserta pelatihan. Kuesioner divalidasi dengan menggunakan metode Korelasi Product Moment dan diuji reliabilitas dengan metode Cronbach Alpha. Hasilnya, materi pelatihan yang diberikan sudah sesaui dengan kebutuhan dalam persiapan Olimpiade Sains Nasional bidang matematika, metode pelatihan efektif dalam membantu peserta memahami materi, dan peserta merasa puas untuk penyampaian materi yang dilakukan oleh pengajar beserta fasilitas yang diberikan oleh PalComTech selama proses pelatihan
A constitutive model for cavitation and cavity growth in rubber-like materials under arbitrary tri-axial loading
No full textIn this paper, we attempted to construct a constitutive model to deal with the phenomenon of cavitation and cavity growth in a rubber-like material subjected to an arbitrary tri-axial loading. To this end, we considered a spherical elementary representative volume in a general Rivlin's incompressible material containing a central spherical cavity. The kinematics proposed by [Hou, H.S., Abeyaratne, R., 1992. Cavitation in elastic and elastic-plastic solids. J. Mech. Phys. Solids 40, 571-722] was adopted in order to construct an approximate but optimal field. In order to establish a suitable constitutive law for this class of materials, we utilized the homogenisation technique that permits us to calculate the average strain energy density of the volume. The cavity growth was considered through a physically realistic failure criterion. Combination of the constitutive law and the failure criterion enables us to describe correctly the global behaviour and the damage evolution of the material under tri-axial loading. It was shown that the present models can efficiently reproduce different stress states, varying from uniaxial to tri-axial tensions, observed in experimentations. Comparison between predicted results and experimental data proves that the proposed model is accurate and physically reasonable. Another advantage is that the proposed model does not need special identification work, the initial Rivlin's law for the corresponding incompressible material is sufficient to form the new law for the compressible material resulted from cavitation procedure. (C) 2007 Elsevier Ltd. All rights reserved
Sistem Pendukung Keputusan Pemilihan Ketua Program Studi Berprestasi Menggunakan Metode TOPSIS
No full textKetua Program Studi sebagai elemen dalam manajemen perguruan tinggi untuk merealisasikan visi, misi, dan tujuan dari program studi yang relevan dengan visi, misi, dan tujuan lembaga secara keseluruhan. Sistem penghargaan merupakan salah satu unsur penting dan sebagai unsur motivator ke arah kinerja terbaik serta berperan dalam menumbuhkan suasana akademik, yang pada akhirnya dapat mempercepat perkembangan masyarakat ilmiah masa kini dan masa depan sesuai dengan yang diharapkan. Sistem pemberian penghargaan dapat mendorong Ketua Program Studi untuk lebih berprestasi dan produktif, sehingga tujuan pengembangan sistem pendidikan tinggi dan pembangunan nasional pada umumnya dapat tercapai secara optimal. Pemberian penghargaan ini dilakukan secara rutin oleh kemenristekdikti tiap tahun. Menentukan Ketua Program Studi Berprestasi menggunakan Sistem Pendukung Keputusan (SPK). SPK dibuat dengan beberapa tahapan dimulai dari studi literature, desain sistem, membangun sistem dengan menerapkan metode TOPSIS dalam SPK, implementasi dan pengujian sistem, dan analisis sistem yang telah dibangun.Sistem Pendukung Keputusan ini dapat digunakan untuk mempermudah serta membantu dalam menentukan Ketua Program Studi Berprestasi.</jats:p
The Service and Security Quality for The Trust and Implication in Online Purchasing Decision
No full textThe purpose of this study is to learn about the effects of service and security quality on trust and their implications for online purchasing decisions. This study's samples are drawn from South Sumatran residents who have made online purchases—roughly 170 people. The data analysis technique in this study is SEM-PLS. The results of the study show that service quality and security have a positive and significant impact on trust and their implications for online shopping decisions in marketplaces. The security variable has a greater influence than the service quality variable on trust and online shopping decisions in the marketplace
Part of vitamin D in systemic Lupus Erythematosus rate and disturbance: the systematic review and metaanalysis
No full textIntroduction: Vitamin D is one of the most bunches of sterols; playing a critical part in phospho-calcic digestion system. The change of 7-dehydrocholesterol to previtamin D3 within the skin, through sun oriented bright B radiation, is the most source of vitamin D. Since lupus patients are more often than not photosensitive, the chance of creating vitamin D lack in is tall in this populace. In spite of the fact that confirmations appeared the intention between Systemic Lupus Erythematosus (SLE) and vitamin D through which SLE can lead to lower vitamin D levels, it is additionally imperative
to consider the plausibility that vitamin D insufficiency may have a causative part in SLE etiology. This paper analyzes existing information from different thinks about to highlight the part of vitamin D lack in SLE event and disturbance and the plausible adequacy of vitamin D supplementation on SLE patients.
Methods: This study using systematic review that search using keyword Vitamin D and Systemic Lupus Erythematosus in PubMed, Google Scholar and Science Direct.
Result: After final screening the author analysis 4 articles. As in methods, the author summarizes 4 articles.
Conclusion: Confirmations appear that vitamin D plays a critical part within the pathogenesis and movement of SLE, and vitamin D supplementation appears to improve incendiary and hemostatic markers; so, can progress clinical ensuing
Utah's tri-county automation project
No full textPresented during the USCID water management conference held on October 13-16, 2004 in Salt Lake City, Utah. The theme of the conference was "Water rights and related water supply issues."A This paper discusses an ongoing technology project in the tri-county area of central Utah (Carbon, Emery, and Sanpete Counties; see Figure 1). The three counties share the same watershed (Wasatch Plateau) even though Carbon and Emery are in the Green/Colorado River drainage and Sanpete is in the Sevier River drainage. The county boundaries roughly equate to river basin boundaries: Emery-San Rafael River; Carbon-Price River; and Sanpete-San Pitch River. There are 13 small trans-basin diversions that export water from Emery and Carbon Counties to Sanpete County. There is a Federal water project in each county and Colorado River salinity projects in Emery and Carbon. And there is a myriad of contentious issues developing including: protecting and quantifying water rights, a leaky reservoir basin which has become an unintentional trans- basin diversion, a proposed new trans-basin diversion which is in the final planning stages, quantifying the impacts of the Federal salinity projects, conjunctive use of Federal and non-Federal facilities, and addressing fish and wildlife issues. Part of the solution to avoiding future conflicts in the tri-county area involves increased real-time monitoring and control, and using this information to operate both Federal and non-Federal facilities in an optimal fashion to the benefit of all. The existing (but still evolving) Emery County real-time monitoring system and real-time web site (www.ewcd.org) are demonstrating what is possible (Emery WCD and Reclamation, 2003). Officials in all three counties are indicating strong support for a multi-county system which would cover the entire area. Emery is so committed to the concept that, several years ago, the county raised its ad valorem tax to provide base-level funding for their portion of the project (Hansen and Berger, 2003).Proceedings sponsored by the U.S. Department of the Interior, Central Utah Project Completion Act Office and the U.S. Committee on Irrigation and Drainage
Perlindungan Jamsostek Terhadap Pekerja Waktu Tertentu Pada PT. Tri Tunggal Permai Di Kota Dumai
No full textProgram Jamsostek mandated by the Indonesian Government Regulation No.14 Year 1993 on the Implementation of the program Jamsostek, consisting of AccidentInsurance, Death Benefit, Old Age Security, and Health Insurance, in which the programmust be implemented for each company. PT. Tri Tunggal Permai is one company thatalso runs the program. To find out the program implementation JamsostekWorkers in Certain Time PT. Tri Tunggal Permai, the authors intend to conductresearch. The formulation of the problem, namely: (1) Knowing the setting procedurekepersertaan Jamsostek Workers at the specific time PT. Tri Tunggal Permai (2)Knowing the program implementation Jamsostek Workers at the specific time PT. TriTunggal Permai (3) Knowing what legal efforts of workers PT. Tri TunggalPermai if the participant dues deduction Jamsostek not with a predetermined. Researchobjectives are:(1) To determine the arrangements and procedures forparticipation of workers at any given time PT. Tri Tunggal Permai in the fieldJamsostek (2) To determine the implementation of the program Jamsostek at anygiven time by the workers PT. Tri Tunggal Permai (3) To know the legal remedyof an employee PT. Tri Tunggal Permai.This study took location in PT. Tri Tunggal Pemai in the town of Dumaithe methods used in evaluating and sampling is purposive sampling method,which sets out a number of samples existing population, the sample categoriesdefined by the author. This type of research is sociological, materials researchcarried out by conducting field surveys to conduct observation and data collectiontools observation, interviews, and literature review.From the results of this study concluded that the Arrangement and theprocedures of participation Jamsostek of workers at any given time PT. TriTunggal Permai in accordance with the Government Regulation of the Republicof Indonesia Number. 14 of 1993 on the Implementation Program Jamsostek,known that certain time workers PT. Tri Tunggal Permai against membership inthe Health Insurance Program, Old Age Security, Employment Insuranceaccident, the answer enrolled Security Death of 20 (twenty) with a percentage of100% (one hundred percent).In the implementation of the program Jamsostek inPT. Tri Tunggal Permai concerning the amount of Social Security contributionspieces running less well with the discovery of two (2) people working who paydues deduction exceeds the social security provisions established. This is becauseemployers mistake when cutting dues Jamsostek workers. Employers acting in good faith to resolve this matter. Settlement of this problem is through themediation and reached an agreement that employers change their loss against thedues deduction Jamsostek workers that exceed provisions
Perbandingan Seleksi Fitur Term Frequency & Tri-Gram Character Menggunakan Algoritma Naïve Bayes Classifier (Nbc) Pada Tweet Hashtag #2019gantipresiden
No full textTowards an election year (elections) in 2019 to come, many mass campaign conducted through social media networks one of them on twitter. One online campaign is very popular among the people of the current campaign with the hashtag #2019GantiPresiden. In studies sentiment analysis required hashtag 2019GantiPresiden classifier and the selection of robust functionality that mendaptkan high accuracy values. One of the classifier and feature selection algorithms are Naive Bayes classifier (NBC) with Tri-Gram feature selection Character & Term-Frequency which previous research has resulted in a fairly high accuracy. The purpose of this study was to determine the implementation of Algorithm Naive Bayes classifier (NBC) with each selection and compare features and get accurate results from Algorithm Naive Bayes classifier (NBC) with both the selection of the feature. The author uses the method of observation to collect data and do the simulation. By using the data of 1,000 tweets originating from hashtag # 2019GantiPresiden taken on 15 September 2018, the author divides into two categories: 950 tweets as training data and 50 tweets as test data where the labeling process using methods Lexicon Based sentiment. From this study showed Naïve Bayes classifier algorithm accuracy (NBC) with feature selection Character Tri-Gram by 76% and Term-Frequency by 74%,the result show that the feature selection Character Tri-Gram better than Term-Frequency
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