bluuebunny/crossref_metadata_2025 huggingface dataset:
Ринок та перспективи газотурбінних двигунів для важких транспортних гелікоптерів
Authors: Nerubaskyi Vadym
Published: August 2023

The subject of this study is the current state of the market and prospects for the development of heavy transport helicopters and their power plants. This article provides a classification of helicopters and a segment of medium-heavy and heavy helicopters with gas turbine engines. The field of application of such helicopters is briefly described. The purpose of this article is to evaluate the activities of Element JSC in the field of developing electronic control systems for gas turbine engines for heavy class helicopters. Such systems for Element JSC, in particular, are RDTs-2500 and RDTs-450M-117B units for TV3-117VMA-SBM-1B series turboshaft engines, created by Motor Sich JSC. Objective: To provide information on the main types of heavy helicopters manufactured and operated today, as well as a description of the gas turbine engines installed on these helicopters. The field of application of such helicopters is briefly described. The segment of heavy helicopters with gas turbine engines is the largest in terms of money on the world market of civil helicopters, and the forecast of deliveries of such helicopters for the next 5-7 years is given. Most helicopter models are not completely new developments, but have been improved over many years. Characteristic design features of heavy helicopters with gas turbine engines, features of the arrangement of units and equipment are given. The main structural and structural features of gas turbine engines of various manufacturers and the types of helicopters on which they are installed are given. Brief information on Russian and Ukrainian gas turbine engines - VK-2500 and TV3-117VMA-SBM-1B is provided separately. The results. Despite the active development of eVTOL technologies in the sector of small rotorcrafts, the development and improvement of gas turbine engines continues. Heavy helicopters of both traditional and non-traditional designs are being developed. Conclusions. Modernization of the design and "remotorization" of the Mi-8 helicopter is a good opportunity for "Motor-Sich Helicopters", but it needs its own developments. Many promising Ukrainian developments were canceled due to the war. Analysis of the technical characteristics of TVaD for heavy helicopters shows that domestic engines are almost in no way inferior to their European and American competitors. Promising TVaD of SE "Ivchenko-Progress" AI-130 with a capacity of 3,000 hp. can become an even more attractive proposition.
Методика наближеного синтезу регуляторів за умов забезпечення властивостей робастності
Authors: Myrhorod Volodymyr , Hvozdeva Iryna
Published: August 2023

The subject of research – Methods, mathematical models, and methods of adjustment of regulators of automatic control systems with controlled changes in the state of power and energy installations based on gas turbine engines. The purpose of this study is to develop and apply a method of approximate synthesis of regulators with robustness properties, in particular, to the most important indicator of the quality of automatic control systems of gas turbine engines, namely stability reserves. The tasks faced by the developers consisted in analytically establishing the robustness conditions of gas turbine engine automatic control systems with respect to stability reserves, determining the possibilities of ensuring the established robustness conditions of gas turbine engine automatic control systems with respect to stability reserves using classical proportional-differential -integral regulators, conducting a computer experiment using a simplified model of a gas turbine engine and an automatic control system with a robust regulator, obtaining conditions and restrictions on the use of regulators with robustness properties. The methods that were used to achieve the established goal of the research: methods of modeling the controlled change in the state of power and energy installations based on gas turbine engines; methods of automatic control theory, in particular methods of sensitivity theory; and methods of conducting computer experiments. The results of the research constitute the proposed and mathematical modeling method of approximate synthesis of regulators possessing the properties of robustness, in particular, to the most important indicator of the quality of automatic control systems of gas turbine engines, namely stability reserves. The conditions and limitations of the fulfillment of the robustness conditions using classical proportional-differential-integral regulators are established. The scientific novelty of the obtained results lies in the fact that for the first time the issue of the sensitivity of stability and quality indicators of gas turbine engine automatic control systems to changes in object parameters was considered, and an approach was proposed to ensure the robustness of such systems with the help of appropriate settings of classical proportional-differential-integral regulators mode parameters of the object. The practical significance of the obtained results lies in the fact that the proposed technique allows finding a set of settings of proportional-differential-integral regulators of mode parameters by controlled change in the state of power and energy installations based on gas turbine engines, which ensure stabilization of sustainability indicators when the object parameters change.
Закони керування авіаційним газотурбінним двигуном з турбовентиляторною приставкою
Authors: Tovkach Serhii
Published: August 2023

The main aspects of the general task of integrating an aviation engine (AE) with a turbofan additional unit (TAU) of a multi-mode aircraft are the selection of the scheme and design parameters of the AE with the TAU (including parameters of the work process), as well as methods and means of automatic control of the AE with the TAU for better matching its characteristics with certain flight modes. These two tasks are closely interrelated: on the one hand, when determining the appearance of the aircraft and its power plant (PP), it is necessary to consider what means will ensure the adaptation of its characteristics to the variable flight mode, and on the other hand, the purpose of the aircraft, its parameters and parameters of the PP, and the flight modes mostly determine the choice of control laws. The subject of the research is the formation of the laws of control of the aviation gas turbine engine with TAU. The goal is to improve the dynamic characteristics of the aviation gas turbine engine by applying adaptive control of the gas turbine engine with the use of wireless information exchange technologies. Objectives: to generalize the concept of adaptive control at the stage of determining the appearance of an engine with TAU; to determine the methods of regulating the GTE with TAU and their influence on the speed characteristics; to describe the process of formation of the laws governing AE with TAU; to investigate thermal processes in order to find functional dependencies in the optimal control of gas turbines with TAU. Research methods: system analysis, mathematical and computer modeling were used in the formation of control laws; the methods of philosophical knowledge were used to build an approach to the design of adaptive control systems of gas turbines with TAU. The theory of aircraft engines, the theory of differential equations, difference grids, and numerical methods were used to optimize the control of gas turbines with TAU. Results: methods of regulating the GTE with TAU and their influence on the speed characteristics of the aviation engine; formulas for researching the thermal processes of the working blades of the GTE with TAU in order to form the influence of the regulator on the executive mechanisms. Scientific and practical novelty: formation of a paradigm for the development of models of adaptive control of GTE with TAU, considering different flight modes of the aircraft and engine operation modes. The selection of control laws using multi-parameter optimization methods for finding the relationship between structural and component schemes of the gas generator and turbofan additional unit. The character of the engine thrust change depending on the input temperature is shown, which in turn, will allow to increase the efficiency of the fan and obtain a thrust reserve. The research directions of the temperature field and stress field were formed.
PERAN DUKUNGAN SOSIAL ORANG TUA TERHADAP MOTIVASI BERPRESTASI SISWA SMP DI SURABAYA PADA ERA BARU
Authors: Wibowo Wasis Purwo
Published: August 2023

Kondisi era baru saat ini membutuhkan penyesuain dalam seluruhbidang termasuk dalam dunia pendidikan. Siswa sebagai peserta didik memiliki tantangan kembali untuk menumbuhkan motivasi dan semangatnya dalam mencapai prestasi dibandingkan selama masa pandemi sebelumnya. Tujuan penelitian ini adalah menelaah dan menganalisa peran dukungan sosial orang tua terhadap motivasi berprestasi siswa SMP di Surabaya pada era baru.Penelitian ini menggunakanmetode kuantitatif melalui analisis regresi sederhana dengan bantuan IBM SPSS Statistic 25. Sampel penelitian yang digunakan yaitu siswa SMP di Surabaya melalui purposive sampling dengan jumlah 150 subyek. Instrumen penelitian untuk menguji dukungan sosial orang tua disusun oleh peneliti dengan total item sebanyak 23 item (validitas item berada pada rentang antara 0,316 sampai dengan 0,678 dengan reliabilitas ? = 0,882) dan alat ukur motivasi berprestasi dikembangkan oleh peneliti dengan total item sebanyak 30 item (validitas item berada pada rentang antara 0,260 sampai 0,389 dengan reliabilitas ? = 0,794). Hasil penelitian membuktikan bahwa terdapat pengaruh yang signifikan (nilai p = 0,000 dan nilai F = 56,523) antara dukungan sosial orang tua terhadap motivasi berprestasi siswa SMP di Surabaya pada era baru.
РЕАЛІЇ І ПЕРСПЕКТИВИ ВІТЧИЗНЯНОГО Й МІЖНАРОДНОГО МЕНЕДЖМЕНТУ: ПРІОРИТЕТНІ НАПРЯМИ, ПРОГНОЗ МАЙБУТТЯ
Authors: Перевозова Ірина , Шайбан Віталій , Деделюк Олександр
Published: August 2023

У статті досліджено реалії і перспективи вітчизняного й міжнародного менеджменту. Проаналізовано сучасні напрями розвитку менеджменту, зокрема вплив глобалізації на міжнародні бізнес-процеси, роль технологічних інновацій у вдосконаленні управління, стратегічного й ресурсного управління в умовах підвищеної конкуренції й обмеженості ресурсів. Визначено основні проблеми, які ускладнюють процес трансформації менеджменту в Україні. Зазначено ключові фактори, що впливають на розвиток менеджменту, зокрема формування організаційної культури, ефективних комунікацій, стратегічного й ресурсного управління та соціальної відповідальності бізнесу. Визначено, що для ефективного функціонування в такому динамічному середовищі менеджерам необхідно бути гнучкими, креативними й здатними швидко адаптуватися до нових обставин.
Atmosphere
Authors: Khosravi-Vamakani Shamim
Published: August 2023

Atmosphere surrounds us and is a sensorial phenomenon. According to Whitehead, “We are left with the vague feeling of influences from vague things around us.”1 Atmosphere is challenging to grasp, as it tends to vary due to factors - including exterior ones - which can change frequently. This thesis aims to investigate how atmosphere can contribute to and influence the early stages of the design process and become a fundamental aspect of a proposal. Such an approach focuses more on the experience created than on the form or function of the space. While various factors affect atmosphere, this study focuses mainly on the relations between interior and exterior, scale and proportion, light and shadow, materiality, the sound of space and users.  
Life Between Generations: A Housing Typology for Aging in Place
Authors: Lad Tejal
Published: August 2023

In the architectural realm, housing is central to the quality of life in a city because it impacts the physical and metaphysical conditions in which we live. This thesis redefines health for aging populations to be about social inclusion, improving people’s quality of life in a city. It also addresses the urgent need to densify housing in an urban context to create healthy housing options for people to age in place. The backyard proposal encourages independence by designing for walkability while creating opportunities for people to stay within their own community, in a new backyard housing typology. This thesis transforms the typical vehicle accessible laneways in Toronto to create a better and more healthy way of living for all ages, but specifically thinking of the aging population and the potential for new ways of designing socially inclusive and healthy environments for retired living. 
Oneiric Architecture: Perceptions of Reality
Authors: Stone Freedom
Published: August 2023

No two people will experience a space the same since their subjective experience is based on their experiences and knowledge. How they interact, what they see, feel, hear, and smell, and what serves as a landmark in space become memories that alter how one perceives places. The boundlessness of oneiric space establishes numerous realities and perceptions of space for one to explore, react, and feel. Oneiric spaces are remarkably inexact and eccentric. At the same time, one’s memory, imagination, and dreams are contextualized through architecture, contrastingly understood as precise and coherent. Repressed within the unconscious, the uncharted qualities of creativity and vulnerability characteristic to oneiric architecture creates an influential exchange between body and space, informing and expanding the boundaries of spatial thinking. Oneiric architecture serves as a means of questioning what defines architecture and how space is presented through the exploration of architecture’s speculative and creative attributes. 
Temporality in Architecture: Facilitating Change in Toronto's Postwar Suburbs
Authors: Szywacz Paul
Published: August 2023

Toronto’s postwar suburbs have remained largely unchanged since the 1950’s and do not effectively address the greater sustainable, social and economic needs of the city. Obsolete bylaws govern new construction projects and renovations in the city’s postwar suburbs, resulting in neighbourhoods that fail to address contemporary societal needs. City-led action plans such as HousingTO and TransformTO outline several forces of change that are not being properly addressed by the city’s housing. One such force involves climate change, in which the city has ambitious goals to reduce greenhouse gas emissions by 80% by 2050. Another is unaffordable housing, which constitutes nearly 50% of housing across the city. Third is Toronto’s lacking sense of community, which can be addressed by mixing housing typologies and demographics in neighbourhoods. Facilitating change within the city’s postwar suburbs will result in an environment that is more sustainably, socially and economically successful. 
Inertial particle separation in helical channels: A calibrated numerical analysis
Authors: Palumbo Joshua , Navi Maryam , Tsai Scott , Spelt Jan K. , Papini Marcello
Published: August 2023

Inertial microfluidics has been used in recent years to separate particles by size, with most efforts focusing on spiral channels with rectangular cross sections. Typically, particles of different sizes have been separated by ensuring that they occupy different equilibrium positions near the inner wall. Trapezoidal cross sections have been shown to improve separation efficiency by entraining one size of particles in Dean vortices near the outer wall and inertially focusing larger particles near the inner wall. Recently, this principle was applied to a helical channel to develop a small-footprint microfluidic device for size-based particle separation and sorting. Despite the promise of these helical devices, the effects of channel geometry and other process parameters on separation efficiency remain unexplored. In this paper, a simplified numerical model was used to estimate the effect of various geometric parameters such as channel pitch, diameter, taper angle, depth, and width on the propensity for particle separation. This study can be used to aid in the design of microfluidic devices for optimal size-based inertial particle separation.
Model Pengembangan Usaha Wisata Kuliner Oepoi Dalam Masa Pandemi Covid-19 Di Kota Kupang
Authors: Lawalu Emiliana Martuti , Ketmoen Adrianus , Taneo Brian
Published: August 2023

Covid 19 caused economic instability of society. In this case is small and middle business sector. It was dealing with the decline of people’s purchasing power because of social distancing and large-scale social restriction policy. The results are happened the termination of employment, the decrease in sale turnover and even close the business. For small and middle business pertaining culinary tour, naturally it encountered the problem because of being empty buyers for their culinary products.

The goal of this study is to explore business delineation of culinary tour in Oepoi Kupang and such business strategy in responding Covid 19.

While the method used for gaining the goal are qualitative one, such as interview, participant observation, and literature review.

The results of study denoted that culinary business are dominated by settler or Javanese entrepreneur, and take charge of the stall at fee IDR 1.500.000 per mounth. Business delineation was dealing with income declining because of government large-scale restriction policy. Even so, the entrepreneurs steady to survive in running the business. The strategi they make to maintain the busniss is selling by E-commerse and digital marketing. It is importan strategic choice to the income improvement and give the easiness to consumer in shoping. Moreover as entrepreneurs they need to improve for the good service through products quality, hygiene guarantee, products safety, and service quality improvement.
Penerapan Model PembelajaranCooperative Learning TipeMake A Matchdalam Meningkatkan Hasil Belajar Matematika Tentang Bilanganpada Siswa Kelas VII SMPK St. Yosef Noemuti Tahun Pelajaran 2019/2020
Authors: Daconceicao Ana Paula , Amsikan Stanislaus , Nahak Selestina
Published: August 2023

Penelitian tindakan kelas ini bertujuan untuk mengetahui hasil belajar siswa Kelas VIIB SMPK St. Yosef Noemuti setelah diterapkan pembelajaran matematika dengan Model Pembelajaran cooperative learning Tipe Make A Match. Masalah yang diselidiki adalah keaktifan siswa dalam mengikuti pelajaran masih belum nampak, dan siswa tidak memahami materi pelajaran yang disampaikan yang akhirnya menyebabkan siswa sulit dalam menyelesaikan soal yang diberikan, terutama pada materi bilangan bulat. Subjek dalam penelitian ini adalah siswa kelas VIIB di SMPK St. Yosef Noemuti pada semester ganjil Tahun Pelajaran 2019/2020 yang berjumlah 25 orang. Alat pengumpulan data dalam penelitian ini adalah lembar observasi, soal tes dalam bentuk uraian. Penelitian ini di laksanakan dalam dua siklus dan masing-masing siklus terdiri dari dua kali pertemuan, untuk proses belajar mengajar dan tes. Hasil penelitian menunjukkan bahwa dengan menerapkan model pembelajaran cooperative learning tipe make a match hasil belajar siswa meningkat, hal ini dibuktikan pada siklus I presentase ketuntasan kelasnya 64,00%, sedangkan pada siklus II presentase ketuntasan kelasnya 80,00%. Dengan demikian, dapat disimpulkan bahwa dengan menggunakan model pembelajaran cooperative learning tipe make a match dapat meningkatkan hasil belajar siswa tentang Bilangan Pada Siswa Kelas VIIB SMPK St. Yosef Noemuti Tahun Pelajaran 2019/2020.
Analisis Kreativitas Siswadalam Menyelesaikan Soal-Soal Sistem Persamaan Linear Tiga Variabel (SPLTV)pada SiswaKelas X SMA Negeri Noemuti Tahun Ajaran 2018/2019
Authors: Salu Agustina
Published: August 2023

Tujuan penelitian ini adalah Mengetahui kreativitas siswa dalam menyelesaikan soal-soal Sistem Persamaan Linear Tiga Variabel. Dalam pengumpulan data, peneliti menggunakan jenis data deskriptif dan alat pengumpulan datanya berupa tes dan wawancara. Kreativitas-kreativitas yang dialami (a) Kefasihan: subjek menuliskan apa yang diketahui dalam soal, membuat model matematika dengan variabel yang tidak biasa digunakan didalam kelas. (b) Fleksibel: subjek menuliskan apa yang diketahui dalam soal, membuat model matematikanya dengan variabel yang berbeda-beda pada setiap nomor soal, menggunakan langkah-langkah yang tepat untuk menyelesaikan soal.
Sosialisasi Penggunaan Media Visual dalam Pembelajaran Biologi di SMA Nurul Fallah Kefamenanu
Authors: Naimnule Lusia , Hale Erlin Fatima , Oetpah Finsensius
Published: August 2023

Penggunaan media pembelajaran khususnya media visual bukanlah sekedar upaya untuk membantu pengajar, namun juga membantu siswa dalam belajar karena dengan menggunakan media, pikiran siswa akan lebih terfokus pada upaya yang disampaikan oleh pendidik dan dapat meningkatkan pemahaman siswa dalam proses pembelajaran. Media visual adalah media yang berkaitan erat dengan indera penglihatan. Media ini akan dapat membantu percepatan proses pemahaman, menarik perhatian, memperkuat ingatan, memperjelas sajian materi, serta mengilustrasikan bahan sehingga tidak mudah dilupakan atau diabaikan. Media visual dapat pula menumbuhkan minat peserta didik dan dapat memberikan hubungan antara isi materi pelajaran dengan dunia nyata, sehingga tujuan pembelajaran yang diharapkan dapat tercapai. Dengan adanya sosialisasi mengenai penggunaan media pembelajaran visual dalam pembelajaran biologi memberikan dampak positif terhadap pihak sekolah, khususnya guru mata pelajaran biologi dan peserta didik. Hal ini dapat dibuktikan dengan semangat peserta didik dalam mempelajari dan menerapkan media pembelajaran visual dalam pembelajaran biologi.
Translation of Long Sentences in Engineering Contracts under the Theory of Functional Equivalence: Taking FIDIC Conditions of Contract for Construction (Red Book) as an Example
Authors: Jiang Weiyi
Published: August 2023

The FIDIC (Fédération lnternationale Des lngénieurs Conseils) Conditions of Contract for Construction are widely used in international engineering contracts, and their translation also plays an active role in the construction of China's own engineering contract texts. Due to the complexity and variety of the logical levels and modifiers, understanding and translation have become a major challenge. This paper will use functional equivalence theory as the theoretical guide, take the English and Chinese versions of FIDIC Conditions of Contract for Construction (1999 Red Book) as the main research text, analyze the long sentences of FIDIC Conditions of Contract for Construction and its translation techniques in Chinese translation, and explore how Chinese translation can deal with complex long sentences to achieve the closest and most natural equivalence between the target language and the source language.
Point-Prevalence Survey for the Hospital-Acquired Infections and Infection Prevention and Control Status of Different Wards of Rajshahi Medical College Hospital
Authors: Haque Md Jawadul , Yasmin Farhana , Arif Md Ashfaq , Rahman Nahreen , Parven Rehana , Asaduzzaman Md , Alam Muhammad Zubayer
Published: August 2023

Introduction: Healthcare-associated infections represent significant obstacles to providing high-quality healthcare and have been directly linked to ineffective infection control procedures. There is currently a shortage of trustworthy data in Bangladesh describing the epidemiology of hospital-acquired infections (HAIs), which is necessary for the development of effective infection prevention and control measures. This study's goal was to assess the frequency, nature, and risk factors of HAIs in acute care hospitals in Northern Bangladesh.

Methods: This was a pilot point prevalent survey conducted in the medicine, surgery, gynecology, and obstetrics departments of Rajshahi Medical College Hospital between August 2022 to September 2022. Data were collected by two questionnaires for disease profile and hospital-acquired infection. In addition, a checklist was used for the observation of the infection prevention and control (IPC) status of different wards.

Result: Approximately 900 patients' data were collected during this time period. The overall prevalence of HAI was found to be 3.7%. The prevalence of HAI, especially surgical site Infection (SSI), in the obstetrics ward, was 4.2%, and the Medicine ward was 3.9%, respectively. The prevalence of hospital-acquired infection in the surgery ward is 7.7%. Approximately 41.7% of patients developed SSI on the 6th post operative day (POD). The Infection prevention and control status of different wards was similar, which was not satisfactory.

Conclusion: This surveillance might help concerned authorities and policymakers by making some crucial steps to monitor and reduce hospital-acquired infections and HAIs in hospitals.

TAJ 2022; 36: No-1: 9-15
Prevalence of Dermatophytic Infections and Their Antifungal Susceptibility Pattern in the Rajshahi Region
Authors: Khan Md Mottalib Hossain , Haque Md Ahsanul , Kabir Farjana , Nath Shubhra Kanti Dev , Zahan Rozina Aktar , Rahman Nahreen
Published: August 2023

Background: Dermatophytes are the most significant fungi because of their widespread involvement in the population and their prevalence worldwide. Bangladesh's hot and humid climate, overcrowded population, poverty, malnutrition, and ignorance make dermatophytosis a common cutaneous infection. These infections occur in both healthy and immunocompromised patients. Dermatophytes are responsible for most cutaneous fungal infections, and the estimated lifetime risk of acquiring a dermatophyte infection is 10-20%.

Objective: To isolate and identify different dermatophytes and their antifungal susceptibility pattern in the Rajshahi region.  Materials and Methods: Different clinical samples (e.g., skin scrapings, nail clipping, and hair plucking) were collected under aseptic precautions. The isolation and identification of dermatophytes were performed through a microscopic examination using 10% KOH mount, mycological culture, and species identification by lactophenol cotton blue mount from positive culture. In addition, all dermatophytes isolates were subjected to antifungal susceptibility testing using the agar-based disk diffusion method in Mueller Hinton agar media.

Results: Out of 171 samples, Trichophyton rubrum was the predominant dermatophyte species with 76(71.7%), followed by T.mentagrophyte were 15(14.2%), E. floccosum were 12(11.3%), and M. canis were 03(2.8%). voriconazole, clotrimazole, and itraconazole were more effective drugs. Griseofulvin was the least effective drug, followed by fluconazole.

Conclusion: This study indicates dermatophytosis is a common skin disease in northern Bangladesh. Due to the increasing trend of antifungal drug resistance among dermatophytes, treatment should be based on antifungal sensitivity testing.

TAJ 2022; 36: No-1: 119-125
Pembuatan Data Warehouse secara Berjenjang dari Data Transaksi dengan ETL Script PHP
Authors: Aisyah Yuliana , Anwar Syaiful , Samidi -
Published: August 2023

Setiap perusahaan payment gateway yang mendapat ijin operasional Bank Indonesia (BI), harus melaporkan data transaksinya setiap bulan ke BI . Permasalahan terjadi karena database transaksi produksi tersebar di banyak database, dimana database dipisahkan berdasarkan channel (merchant) dan payment type (Credit card, VA, retail store, e-wallet), hal ini  menyulitkan saat pembuatan laporan. Penelitian ini ditujukan untuk membuat data warehouse yang menggabungkan seluruh database  dengan menggunakan script PHP yang melakukan proses ETL (Extract, Transform, dan Load), dengan cara berjenjang  2 tahap, yaitu tahap 1 melakukan backup seluruh database dari banyak server ke satu server dengan 3 tujuan sekaligus yaitu  backup transaksi , meningkatkan  performance database production dan membantu  proses rekonsiliasi dan tahap 2 melakukan pembuatan data warehouse  dari semua database backup dari tahap 1. Penelitian yang digunakan adalah kuantitatif verifikatif terhadap table-table yang diperlukan  pada system OLTP (Online Transaction Processing). Pengujian data warehouse dilakukan  secara kuantitatif dengan membandingkan hasil summary dari data warehouse dengan gabungan summary  semua database aslinya  dan secara verifikatif oleh petugas report melalui User Acceptance Test. Hasil dari penelitian adalah sebuah script untuk backup data transaksi dari semua database dari banyak server ke satu server,   sebuah script PHP yang berfungsi sebagai pelaksana ETL dan sebuah  data warehouse.
Penanggulangan Serangan LOIC Terhadap Web Server
Authors: Arman Molavi , Rachmat Nur
Published: August 2023

Ketersediaan layanan yang selalu siap secara realtime merupakan hal yang selalu diupayakan untuk menunjang kelancaran layanan dalam menggunakan web server sebagai media utama dalam memberikan dan menunjang interface bagi semua kebutuhan pengguna. Kendala utama karena layanan web server melalui jalur internet maka sering terjadi kendala teknis yang diakibatkan gangguan serangan DoS LOIC yang melumpuhkan kinerja web server, cpu, dan komponen lainnya yang menguras sumber daya komputer server. Hal seperti ini perlu ditanggulangi sehingga layanan web server tetap tersedia bagi pengguna tanpa kendala. Begitu pula serangan yang menggali informasi dari komputer server seperti aktifitas port scanning yang menghasilkan informasi berupa jenis web server, jenis sistem operasi yang digunakan dan informasi penting lainnya. Untuk itu diperlukan upaya penanggulangan dengan menggunakan firewall iptables guna meminimalisir gangguan tersebut.
Model Manajemen Risiko Sistem Informasi Untuk Sistem Informasi Manajemen Kepegawaian
Authors: Yulisuyanti Eka , Soewito Benfano
Published: August 2023

Sistem informasi dan aplikasi manajemen kepegawaian memiliki peran penting dalam menjaga kerahasiaan data pribadi karyawan, terutama di sektor pemerintahan di mana manajemen karier sangat bergantung pada informasi dari data Aparatur Sipil Negara (ASN) dalam sistem informasi kepegawaian. Selain sebagai sumber informasi, aplikasi ini juga berfungsi sebagai perantara pengguna dan database. Namun, seringkali aplikasi ini menjadi target serangan siber yang bertujuan mengakses data pribadi ASN. Tidak ada aplikasi yang dapat menjamin keamanan mutlak atau bebas dari serangan semacam itu. Oleh karena itu, diperlukan pengembangan manajemen risiko teknologi informasi yang dapat diimplementasikan saat terjadi serangan. Penerapan framework standar untuk manajemen risiko dalam sistem informasi tidaklah mudah, sehingga diperlukan pedoman yang komprehensif. Penelitian ini bertujuan membangun model manajemen risiko khusus untuk sistem informasi kepegawaian, mengadopsi panduan NIST 800-34 Rev 1 dan NIST 800-61 Rev 2, serta mengintegrasikan teori terkait dengan pengembangan manajemen risiko dan contingency plan yang ada. Metode penelitian melibatkan tinjauan literatur sebelumnya dan analisis panduan NIST terkait manajemen risiko teknologi informasi untuk mengidentifikasi tahapan yang signifikan pada model manajemen risiko dalam sistem informasi. Penelitian ini akan menghasilkan model manajemen risiko yang mencakup analisis dampak bisnis, rencana tanggap insiden, dan rencana pemulihan bencana, dirancang khusus untuk sistem informasi kepegawaian dalam konteks pemerintahan.
Tata Kelola Pelaporan Indeks Penyakit Rawat Inap Berbasis Elektronik Dengan Metode Agile
Authors: Zulkarnain Iqbal Iskandar , Abdussalaam Falaah , Sari Irda
Published: August 2023

Pengolahan data, khususnya pembuatan indeks penyakit dan tindakan, berperan penting untuk kualitas pelayanan rumah sakit. Tujuan dari penelitian ini yaitu untuk memperoleh hasil dari perancangan sistem informasi indeks penyakit, khususnya penyakit pasien rawat inap, dengan memakai perangkat lunak Microsoft Visual Studio 2012. Meskipun indeks penyakit pasien rawat inap telah dikomputerisasi dan diintegrasikan dengan SIMRS di Rumah Sakit AMC Bandung, terdapat hambatan yang menghalangi indeks penyakit pasien rawat inap, yaitu proses yang masih dilakukan secara manual memakai perangkat lunak Microsoft Excel. Akibatnya, pencarian menjadi kurang efisien dan memakan waktu lebih lama karena harus diperiksa satu per satu berdasarkan abjad. Selain itu, dalam penelitian ini, metode agile dipilih untuk digunakan. Diharapkan penelitian ini dapat membantu mentransformasikan sistem informasi indeks penyakit pasien rawat inap di Rumah Sakit AMC Bandung menjadi lebih terproses dan terintegrasi dengan SIMRS, serta mempermudah petugas dalam mencari informasi pasien secara keseluruhan dan membuat laporan indeks pasien lebih mudah dan maksimal.
Penerapan Kerangka Kerja NIST Cybersecurity dan CIS Controls sebagai Manajemen Risiko Keamanan Siber
Authors: Mahendra Vicky , Soewito Benfano
Published: August 2023

Menurut laporan dari Check Point Reasearch, terjadi peningkatan sebesar 38% dalam serangan siber global pada tahun 2022 bila dibandingkan dengan tahun 2021. Untuk menghadapi serangan siber global ini, maka perlu disiapkan manajemen risiko dalam menghadapi serangan siber tersebut. Saat ini Kementerian Pekerjaan Umum dan Perumahan Rakyat (PUPR) belum memiliki panduan dalam manajemen risiko. Kementerian PUPR dapat memanfaatkan beberapa kerangka kerja keamanan siber yang telah tersedia, seperti kerangka kerja NIST Cybersecurity dan kerangka kerja CIS Controls yang juga sering disebut Critical Security Controls sebagai langkah dalam manajemen risiko keamanan siber. Penelitian ini dilakukan pada salah satu aplikasi yang sedang berjalan pada Kementerian PUPR. Penelitian ini dimulai dengan pengumpulan data, penilaian kondisi saat ini, identifikasi kondisi saat ini, identifikasi kondisi yang diinginkan, analisis kesenjangan, memberikan rekomendasi dan membuat usulan rencana aksi. Hasil penelitian didapatkan bahwa identifikasi kondisi saat ini mendapatkan skor rata-rata 2.77. Kondisi yang diinginkan/dicapai aplikasi didapat skor rata-rata 3.00. Dari hasil tersebut, terdapat kesenjangan sebesar 0.23. Setelah analisis kesenjangan didapatkan 32 rekomendasi dan mengusulkan rencana aksi dengan isu-isu prioritas tinggi dan sedang. Manajemen risiko menggunakan kerangka kerja NIST Cybersecurity dan CIS Controls terbukti dapat mengukur kematangan keamanan siber pada infrastruktur aplikasi sehingga dapat mengurangi kemungkinan terjadinya serangan siber.
Optimalisasi Fitur Pencarian Pada E-Catalog Menggunakan Query Expansion Dan Algoritma TF-IDF
Authors: Kusuma Selvia Ferdiana , Badriyah Tessy , Wibowo Prasetyo , Faradisa Rosiyah , Huda Solichul
Published: August 2023

E-catalog adalah sebuah katalog elektronik dapat digunakan untuk mempublikasikan dan mempromosikan sebuah produk atau layanan secara online kepada berbagai pihak. Pengguna dapat memperoleh informasi terkait produk yang diinginkan melalui fitur pencarian pada e-catalog tersebut. Oleh sebab itu fitur pencarian memiliki peran yang signifikan untuk menunjang performa e-catalog. Proses pencarian produk pada sebuah e-catalog dilakukan berdasarkan kesamaan kata yang dimasukkan oleh pengguna dengan judul produk yang tersedia. Biasanya semua judul yang mengandung kata kunci yang dimasukkan pengguna akan ditampilkan tanpa adanya perankingan kedekatan hasil pencarian. Hal tersebut tentunya menyulitkan pengguna untuk menemukan produk yang sesuai dengan keinginan. Oleh sebab itu penelitian ini bertujuan untuk melakukan optimalisasi fitur pencarian produk yang ada pada e-catalog menggunakan query expansion dan algoritma TF-IDF. Berdasarkan hasil uji coba yang telah dilakukan, terbukti bahwa penambahan  query expansion dan algoritma TF-IDF dapat mengoptimalkan kinerja fitur pencarian pada e-catalog tersebut. Hasil pencarian produk dapat terangking berdasarkan kedekatan kata kunci yang dimasukkan oleh pengguna dengan judul produk yang diinginkan oleh pengguna
Knowledge and Attitudes Related to Behavior of Pregnant Women in Prevention of Covid-19
Authors: Dewie Artika , Pont Anna Veronica , Usman Hastuti , Silfia Niluh Nita , Hasnawati Hasnawati , Kusika Sri Yanti
Published: August 2023

Background The Central Sulawesi Provincial Health Office noted that until April 7 2021 the number of Covid-19 patients was 11,424. Palu City occupies the maximum number of patients with 3,042 people. One of the groups at risk of exposure to Covid-19 is pregnant women. During the pandemic, pregnant women felt more comfortable doing examinations at the Independent Midwife Practice Place (TPMB) for fear of contracting Covid-19. Purpose This research is to find out the relationship between knowledge and attitudes in pregnant women's behavior toward the prevention of Covid-19 at the Mandiri Midwife Amanah Practice. Methods This quantitative research uses a cross-sectional design using 53 samples of pregnant women who visited TPMB Amanah from June to July 2021. Samples were taken accidentally using a questionnaire instrument. Univariate (frequency distribution) and bivariate data analysis using the kai square test reported in tabular and. Results The research found that most of the respondents had good knowledge, namely 22 respondents (41.5%), had a positive attitude 35 respondents (66%), and behaved not doing 3M totaling 30 respondents (56.6%) with a p-value ≤ 0, 05, which is 0.000. Conclusion There is a relationship between knowledge and attitudes regarding the behavior of pregnant women in preventing Covid-19. It is recommended to actively seek reliable information regarding the prevention of transmission of Covid-19 and get used to carrying out the stages of preventing
PRACTICAL ASPECTS OF INVOLVING ROAD TRANSPORT
IN INTERNATIONAL SUPPLY CHAINS
Authors: Vasylenko Ihor , Lytvynenko Sergiy
Published: August 2023

The article is devoted to the study of the inclusion of road transport in international supply chains in the delivery of special categories of cargoes that have both dangerous and perishable properties. A critical study of the scientific literature on road transport and its involvement in supply chains has revealed a number of theoretically and practically significant scientific tasks that have been successfully solved, but the absence of a comprehensive study to determine the practical aspects of road transport involvement in supply chains has been found. It is noted that, from a theoretical and practical point of view, there is a great interest in deliveries in international supply chains, which are usually multimodal and include many unique aspects specific to a particular chain, a particular delivery scheme.
An example of delivery of goods that have both perishable and dangerous properties – bioproducts in international supply chains – was considered, which is presented in the form of a scheme for organizing the service of transportation of special cargoes involving motor vehicles, which also incorporates an aviation component. The scheme of the cargo delivery organization complex in the road-air connection was proposed, which includes stages related to transportation by road and air (with road delivery including main road transporta-tion, as well as deliveries to and from airports, last mile delivery), loading and unloading operations, temporary storage of goods, organizational and forwarding activities, etc.
It is noted that there is a need to take into account the fact that the peculiarities of special categories of cargo delivery are related to their specific properties and should be addressed by all participants in the delivery process in the international supply chain, primarily carriers who are responsible for the safety of cargo along certain parts of the route. At the same time, it was determined that the freight forwarder or logistics operator, as the organizer of the cargo delivery process, must ensure the processes of consolidation and deconsolidation of cargo (with the possible addition of refrigerants).
Transcatheter aortic valve replacement with the VenusA-Pro and VenusA-Plus systems: preliminary experience in China
Authors: Li Jie , Sun Yinghao , Luo Songyuan , Zheng Shengneng , Chen Jiaohua , Fu Ming , Fang Zhenfei , Wang Yan , Li Guang , Fan Ruixin , Luo Jianfang
Published: August 2023

Background

The outcomes of transcatheter aortic valve replacement (TAVR) employing the second-generation retrievable VenusA-Pro and VenusA-Plus delivery systems with the self-expanding VenusA-Valve have not been described yet. This study aims to report the outcomes of these two second-generation delivery systems.

Methods

From January 2022 to April 2023, we prospectively enrolled patients with severe aortic stenosis undergoing TAVR with VenusA-Pro from three centers across China in this first-in-man study and retrospectively identified those undergoing TAVR with VenusA-Plus. All outcomes were reported according to the Valve Academic Research Consortium 3 definition. The primary outcome was 30-day all-cause mortality.

Results

A total of 156 patients were included, of which 46 underwent TAVR with VenusA-Pro and 110 underwent TAVR with VenusA-Plus. The Society of Thoracic Surgeons median score was 2.1%, bicuspid anatomy prevalence rate was 55.1%, and the mean aortic root calcification volume was 693 mm3. The technical success rate was 91.7%, comparable between the VenusA-Pro and VenusA-Plus groups (87.0% vs. 93.6%, P = 0.169). The 30-day all-cause mortality was 2.6%, similar between the VenusA-Pro and VenusA-Plus groups (2.2% vs. 2.7%, P = 0.842). No myocardial infarction occurred. The incidences of stroke (0.6%), major bleeding (3.8%), major vascular complications (5.1%), acute kidney injury (9.0%), permanent pacemaker implantation (5.1%), new-onset atrial fibrillation (5.8%), and moderate-to-severe paravalvular aortic regurgitation (6.0%) were favorable and comparable between the two groups. The clinical outcomes were similar between the patients with bicuspid and tricuspid aortic valve, except that the incidence of permanent pacemaker implantation was lower in patients with bicuspid anatomy (1.2% vs. 10.6%, P = 0.010).

Conclusions

The 30-day outcomes of TAVR with VenusA-Pro and VenusA-Plus were favorable and comparable.
Epithelium dynamics differ in time and space when exposed to the permeation enhancers penetramax and EGTA. A head-to-head mechanistic comparison
Authors: Panou D. A. , Pedersen S. F. , Kristensen M. , Nielsen H. M.
Published: August 2023

Absorption of therapeutic peptides like glucagon-like peptide or insulin for diabetes therapy upon oral administration is highly restricted by the tight junction (TJ) proteins interconnecting the cells comprising the intestinal epithelium. An approach to improve transepithelial permeation of such biopharmaceuticals via the paracellular pathway is to use functional excipients, which transiently modulate the TJs. Here, we investigated the membrane-interacting peptide, penetramax, and the divalent cation chelator, ethylene glycol tetraacetic acid (EGTA) at different concentrations, to reveal and compare their cellular modes of action when increasing the transepithelial permeation of drug macromolecules. The epithelial integrity was studied in real time along with dextran permeation across differentiated epithelial Caco-2 cell monolayers. TJ protein expression and cytoskeleton organization were investigated during and after exposure to penetramax or EGTA. Based on orthogonal methods, we show that penetramax acts by a mechanism that immediately and transiently widens the paracellular space, resulting in size selective permeant passage and with subsequent reconstitution of the epithelium. At the same time, the expression and organization of different TJ proteins are modulated reversibly. In contrast, the effect of EGTA on modulating the paracellular space is slower and TJ protein unspecific, and without clear permeant size selectivity. Overall, these data provide in-depth insights for understanding intestinal barrier dynamics of importance when evaluating new or existing excipients for oral delivery of biopharmaceuticals, such as peptide therapeutics.
Discussing sources of the β-term in a vorticity equation in rotating coordinates
Authors: Wang Xiuming , Liu Shijun , Tang Huan , Liu Hua
Published: August 2023

In the study of atmospheric dynamics, the vorticity equation in a rotating coordinate system plays a crucial role. However, a paradox arises when one considers the term related to spatial variations in Coriolis parameters known as the “β-term”. The β-term should not appear in the vorticity equation because the three-dimensional (3D) planetary vorticity is a constant vector. However, it is always in the vorticity equation. In this article, the source of the β-term in different rotating coordinates are investigated. The results show that in the spherical coordinate system, the β-term comes from the directions changing of one of the unit vectors (j→) with the spatial position and originates from the tilting term. By contrast, in the height coordinate system, the β-term cannot be derived from the tilting term as the individual changes of the coordinate frames with time are omitted, Instead it is proven to be related to the advection term. Although the both coordinate systems are rotating coordinate systems, the sources of their β-terms differ due to the simplification levels of the coordinate systems. Although the 3D planetary vorticity is a constant vector in the spherical coordinate system, the conversions between its components are allowable and spatial derivatives of its components can be observed, eliminating the paradox of the β-term. However, in the height coordinate system, the 3D planetary vorticity vector is not a constant vector in order to maintain the conservation of the absolute angular momentum and mechanical energy. To account for the influence of the earth’s curvature on atmospheric motion, the β-term of the Coriolis parameters varying with the latitude appears. So, the origin of the β-term paradox proposed in the height coordinate system comes from a misunderstanding of the physical constraints of the height coordinate system.
Complex styles of phreatomagmatic explosions at Kīlauea Volcano, Hawaii, controlled by magma structure
Authors: Schmith J. , Swanson D. A.
Published: August 2023

Explosive eruptions at basaltic volcanoes remain poorly understood. Kīlauea Volcano is a type locality for basaltic eruptions and is well-known for effusive activity. However, more than 7 m of phreatomagmatic Keanakākoʻi Tephra unit D deposits from explosive eruptions crown the southern rim of the summit caldera and provide a stark reminder of Kīlauea’s explosive past and future potential. We used detailed field observations as well as granulometric and morphological analysis of 100 samples from two proximal sections to assess the eruption style and fragmentation mechanism. The deposits can be divided into four subunits, six different lithofacies, and contain three juvenile tephra components. Each juvenile component shows distinct shape variability resulting from molten fuel-coolant interaction (MFCI) explosions of magma of variable vesicularity. Fragmentation of dense glass generates olive-green ash, fragmentation of low to moderately vesicular magma generates a dark gray ash-lapilli component, and fragmentation of highly vesicular magma generates light-yellow pumice. Our work shows that magma structure impacts MFCI explosion efficiency. Small-scale planar bedding throughout most of the deposit points to a general eruption style of small, frequent explosions generating low plumes. Thicker beds of accretionary lapilli of fine-extremely fine ash are related to very efficient magma-water mixing. Pyroclastic density current (PDC) deposits in the upper part of the stratigraphy contain at least three flows but show no significant dune or cross-bedding structures. We suggest that this is a function of the vent being situated in a caldera that was then ∼600 m deep, where the caldera wall acted as a barrier and changed the flow dynamics to very dilute overspills and co-PDC plume falls over the wall. Deconvolution modeling of the polymodal grain size distributions is used to assess grain size changes of each juvenile component for this deposit, which greatly improves interpretation of lithofacies generation and eruption dynamics. Size-correlated shape parameters show that shape data across a wide size range are needed to accurately track grain shapes. This study demonstrates how careful examination of grain size and shape of juvenile tephra clasts can help volcanologists understand how effusive basaltic volcanoes can become violently explosive.