bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analisis Kecocokan Nilai Percepatan Tanah Pulau Lombok Berdasarkan Perhitungan Empiris dengan Data Percepatan Tanah dari Akselerograf di Stasiun Mataram
Authors: Saputri Diana , Pujiastuti Dwi 
Published: March 2022

Telah dilakukan perhitungan nilai percepatan tanah Pulau Lombok yang divalidasi dengan nilai percepatan tanah di Stasiun Mataram.Â Percepatan tanah dihitung dengan beberapa rumusan empiris, yaitu Mc. Guire, Fukushima-Tanaka, Esteva dan Donovan.Â Data gempa yang digunakan adalah data gempa bumi di Pulau Lombok dan sekitarnya pada periode 1979-2018.Â Hasil validasi menunjukkan rumusan Fukushima adalah rumusan terbaik untuk menghitung percepatan tanah di Pulau Lombok dengan persentase kesalahan rata-rata terendah 220%, sedangkan rumusan lainnya memiliki persentase kesalahan rata-rata Mc. Guire 2.586%, Esteva 614%, dan Donovan 3.906%.Â Berdasarkan hasil yang diperoleh maka rumusan Fukushima-Tanaka adalah rumusan yang paling cocok untuk menghitung nilai percepatan tanah di Pulau Lombok.Â The calculation of Lombok Island ground acceleration values which are validated with the value of acceleration of the land at Mataram Stationhas been carried out.Â Land accelerationis calculated by several empirical formulations,Â namely Mc. Guire, Fukushima-Tanaka, Esteva and Donovan.Earthquake data used is earthquake data on the Lombok Islandand its surrounding in the periode 1979-2018. Validation result show thatFukushima-Tanaka is the best formula for calculating the acceleration of land on the Lombok Island with the average percentage error 220%, while the other formulations have an average percentage error Mc. Guire 2.586%, Esteva 614%, and Donovan 3.906%. Based on the result obtained, the formula Fukushima-Tanaka is the most suitable formula for calculating the value of land acceleration on the Lombok Island.
Pemanfaatan Data Alos PALSAR Untuk Etimasi Pergerakan Tanah Kota Padang Upaya Mitigasi Bencana Longsor
Authors: Ckhotimah Husnul , Vonnisa Mutya , Budiman Arif 
Published: March 2022

Telah dilakukan penelitian untuk mendeteksi besar pergerakan tanah sebagai faktor pendorong penyebab terjadinya bencana longsor di Kota Padang.Â Penelitian ini menggunakan data penginderaan jauh yakni data citra ALOS PalSAR tahun 2008 sampai 2009.Â Metode yang digunakan dalam pengolahan adalah Differential Interferometry Synthetic Radar (DInSAR). Metode ini dapat mengamati pergerakan tanah terutama pada daerah perbukitan dengan ketelitian sentimeter.Â Hasil penelitian menunjukkan besar pergerakan tanah untuk wilayah di Kota Padang berkisar antara 0,33- 3,04 cm/tahun.Â Dari 11 kecamatan di Kota Padang, lima diantaranya yakni Kecamatan Pauh, Padang Selatan, Bungus Teluk Begalung, Koto Tangah dan Kuranji mengalami pergerakan atau pergeseran tanah yang cukup besar dari kecamatan lainnya yakni berkisar antara 0,825- 2,31 cm/tahun. Besarnya pergerakan tanah tersebut menyebabkan lima kecamatan di atas sering mengalami bencana tanah longsor dengan kategori cukup rawan.Â Research has been conducted to detect the magnitude of land movement as a driving factor for the occurrence of landslides in the city of Padang. This study uses remote sensing data namely ALOS PalSAR image data from 2008 to 2009. The method used in processing is Differential Interferometry Synthetic Radar (DInSAR). This method can observe the movement of the soil, especially in hilly areas with sub-centimeter accuracy. The results showed the amount of land movement for the area in Padang City ranged from 0,33 to 3,04 cm /year. Of the 11 districts in the city of Padang five of them namely the District of Pauh, South Padang, Bungus Teluk Begalung, Koto Tangah and Kuranji experienced substantial land movements or shifts from other districts which ranged from 0,825 to 2,31 cm /year. The magnitude of land movements and the high level of rainfall causes the five districts often experience landslides in quite vulnerable categories.
Verifikasi Nilai Dosis Radiasi Berkas Elektron Pesawat LINAC dengan Luas Lapangan Blok Cerrobend (6Ã—6) cm2 dan (8Ã—8) cm2 Berdasarkan Protokol IAEA TRS 398
Authors: Ramona Fransischa , Milvita Dian , Diyona Fiqi 
Published: March 2022

Telah dilakukan penelitian Â verifikasi nilai dosis radiasi berkas elektron pesawat LINAC dengan luas lapangan blok cerrobend (8Ã—8) cm2, (6Ã—6) cm2 dan tanpa blok (10Ã—10) cm2. Penelitian bertujuan memperoleh Â nilai dosis radiasi menggunakan blok cerrobend dan tanpa blok agar sesuai dengan dosis radiasi Treatment Planning System (TPS) dan batas toleransi yang ditetapkan protokol IAEA TRS 398 yaitu Â±2%.Â Pada penelitian digunakan energi berkas elektron (4, 6, 9, dan 12) MeV menggunakan slab phantom dengan detektor ionisasi chamber plane parallel.Â Ketebalan blok cerrobend yang digunakan adalah 1,83 cm. Â Hasil penelitian menunjukkan bahwa dosis radiasi yang dihasilkan menggunakan blok cerrobend lebih tinggi daripada tanpa menggunakan blok cerrobend. Hal ini karena semakin luas ukuran lapangan radiasi, maka akan semakin rendah dosis radiasi yang diterima dan semakin banyak radiasi hambur terjadi. Â Nilai deviasi dosis radiasi yang terukur pada slab phantom terhadap dosis radiasi TPS masih memenuhi toleransi yang ditetapkan oleh protokol IAEA TRS 398 yaituÂ -0,81 % sampai dengan 1,36%.Â Verification of radiation values of instrument LINAC electron beam with field size of the cerrobend block (8Ã—8) cm2, (6Ã—6) cm2and without block (10Ã—10) cm2 has been conducted.Â This study aims to get the value of radiation dose using cerrobend blocks and without block to equal with dose radiation Treatment Planning System (TPS) and the tolerance limits established protocol IAEA TRS 398 which is Â± 2%. The study use electron beam energy (4, 6, 9, and 12) MeV using slab phantom with ionization chamber plane parallel detectors.Â The thickness of the cerrobend block use Â 1.83 cm. The results show that using cerrobend block produce a greater dose radiation than without block.Â This due to the larger the size of the radiation field, the lower the dose received and the more scaterring radiation. Deviation value dose radiation of measurement in slab phantom to dose radiation TPS still within the tolerance by protocol IAEA TRS 398 that is -0.81% to 1.36%.
Sintesis Nanopartikel Zink Ferit (ZnFe2O4) dengan Metode Kopresipitasi dan Karakterisasi Struktur Kristalnya
Authors: Gestarila Cinthia , Puryanti Dwi 
Published: March 2022

Penelitian mengenai sintesis nanopartikel ZnFe2O4 telah dilakukan dengan menggunakan metode kopresipitasi. Sintesis nanopartikel dilakukan dengan variasi konsentrasi NH4OH yaitu 1,5 M, 3 M, dan 6 M. Nanopartikel ZnFe2O4dikarakterisasi menggunakan XRD (X-Ray Diffraction) dan SEM (Scanning Electron Microscope). XRD (X-Ray Diffraction) dilakukan untuk mengetahui fasa yang terbentuk dan ukuran kristal yang dihasilkan pada sampel. Ukuran kristal dihitung menggunakan persamaan Schrerer dan diperoleh berturut-turut adalah 26 nm; 26 nm; dan 27nm. SEM (Scanning Electron Microscope) dilakukan untuk mengetahui morfologi permukaan dan ukuran partikel. Hasil perhitungan menggunakan image-j diperoleh ukuran partikel berturut-turut adalah 49 nm; 43 nm; dan 34 nm. Nilai suseptibilitas magnet ZnFe2O4yang dihasilkan berturut-turut adalah 997,3Ã—10-8m3kg-1; 102,6Ã—10-8m3kg-1; dan 739Ã—10-8m3kg-1.Â Â Research on synthesis of zinc ferrite (ZnFe2O4) nanoparticles has been conducted using the coopresipitation method. Synthesis of nanoparticles was carried out with variations in NH4OH concentrations of 1.5 M, 3 M, and 6 M. ZnFe2O4 nanoparticles were characterized using XRD (X-Ray Diffraction) and SEM (Scanning Electron Microscope). XRD (X-Ray Diffraction) is carried out to determine the phases contained and the size of the crystal produced in the sample. The size of crystals is calculated using the Scherrer equation obtained that the results are 26; 26; and 27 nm. SEM is performed to determine the surface morphology and particle size. The results of characterization using image-j are 49 nm; 43 nm; and 34 nm. The susceptibility test using bartington MS2 magnetic susceptibility meters was perfomed to determine the value of magnetic contained in the material. The result of successive magnetic susceptibility are 997.3Ã—10-8m3kg-1; Â Â 102.6Ã—10-8m3kg-1; and 739Ã—10-8m3kg-1.
Sintesis Nanopartikel Manganese Ferrite (MnFe2O4) dari Pasir Besi dan Mangan Alam dengan Metode Kopresipitasi
Authors: Putri Nixcoriani , Puryanti Dwi 
Published: March 2022

Sintesis nanopatikel Mangananese ferrite telah dilakukan menggunakan metode kopresipitasi dengan memvariasikan konsentrasi NH4OH 1,5 M; 5 M; dan 10 M. Bahan baku yang digunakan adalah pasir besi dan mangan alam. X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), dan Bartington MS2 Magnetic Susceptibility Meter masing-masing digunakan untuk mengkarakterisasi struktur, ukuran partikel dan sifat magnetik mangan ferit yang dihasilkan. Ukuran kristal dihitung menggunakan persamaan Scherrer dimana ditemukan bahwa ukuran kristal meningkat seiring dengan berkurangnya konsentrasi NH4OH sebesar 27 nm, 26 nm, dan 20 nm. Ukuran partikel dihitung menggunakan Software Image-J menunjukan bahwa ukuran partikel tidak berubah yaitu sebesar 27 nm. Variasi konsentrasi NH4OH berada dalam rentang mineral hematite 86,51 - 423,75 (x10-8m3kg-1) yang memiliki sifat antiferomagnetik. Mangan ferit yang dihasilkan termasuk dalam karakteristik mangan lunak.Â Nanoparticles manganese Ferrite have been synthesis using copresipitacion method with various concentration of NH4OH 1,5 M; 5 M; and 10 M. Raw materials used are iron sand and natural manganese. X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), and Bartington MS2 Magnetic Susceptibility Meter we used to characterize the structure, particle size, and magnetic properties of the resulted manganese ferrite. The crystal size was estimated using the Scherrer formula the particle sizeÂ increased 27 nm; 26 nm; dan 20 nm Â with the decrease of NH4OH. The particle size was estimated using software Image-J were found that the particle size of 27 nm increased with the decrease of concentration of NH4OH. Magnetic characterization of manganese ferrite nanoparticles was investigated by using a magnetic susceptibility. NH4OH concentration various is on the range of hematite minerals 86,51-423,75 (x10-8m3kg-1) which have antiferomagnetic properties.
ANALISIS PERBEDAAN FENOMENA SHORT-TERM UNDERPRICING DAN LONG-TERM UNDERPERFORMANCE PADA SAHAM PERUSAHAAN BUMN DAN BUMS YANG MELAKUKAN IPO DI BEI TAHUN 2000--2010
Authors: Widhawati Indira Rully , Panjaitan Yunia 
Published: March 2022

The research is intended to analyze short term underpricing and long term underperformance on state and private company shares. Samples used are 11 state company share and 97 private sector share which experienced short term underpricing with average first day return method plus 7 state company shares and 91 state company shares which had long term underperformance using 3 years buy and hold method and wealth relative. By using different test non parametric Mann-Whitney U is concluded that private sectors shares has higher underpricing level which give benefit to short term investor. While State company shares has better performance on long term with WR level reaching 1 compared to private sector shares.
PENGARUH CUSTOMER EXPERIENCES TERHADAP REVISIT INTENTION DENGAN MEDIASI LEARNING IN MUSEUM DAN VISITOR SATISFACTION DI MUSEUM WAYANG
Authors: Dewi Intan Audrey Indira , Laksmidewi Dwinita 
Published: March 2022

Revitalization of the museum in various cities in Indonesia by the government, including in Jakarta, aims to increase visits. To support this objective, museum needs to do the proper marketing strategies, one through experiential marketing approach.This study aims to reveal the effect of the customer experience on revisit intention with learning in museum and visitor satisfaction as mediation, from the perspective of museum visitors. This research was conducted at Museum Wayang, Jakarta. The result showed that customer experience in terms of five dimensions namely, sense, feel, think, act, and relate have positive effect on revisit intention through learning in museum and visitor satisfaction as mediating variables.
Removal of a central venous catheter penetrating the vertebral artery: A case report on endovascular treatment for blunt cerebrovascular injury
Authors: Kaneko Ryosuke , Ikeda Hiroyuki , Uezato Minami , Chin Masaki 
Published: March 2022

Background:
Anticoagulation and endovascular therapy are commonly used treatment methods for blunt cerebrovascular injury (BCVI). However, in certain cases, the perforating objects damaging the blood vessels need to be removed. In such cases, stenting and coil embolization have been reported to be useful. Furthermore, we believe that distal embolization can arrest bleeding at the perforation site when using such treatments. In support of this procedure, we report a case of successful BCVI treatment using distal embolization through contralateral side and proximal protection.

Case Description:
A 61-year-old man had an accidental placement of a central venous catheter that resulted in the perforation of the vertebral artery. Endovascular treatment was performed to remove the catheter and prevent bleeding during extraction. For this treatment, we used the method of distal embolization through the contralateral approach and proximal protection with a microballoon catheter followed by removal of the perforating catheter and additional embolization of the bleeding point under controlled blood flow.

Conclusion:
Under distal and proximal protections, we were able to successfully remove the perforating catheter without bleeding and ischemic complications. While treating BCVI, which requires the removal of perforating material, attention should be paid to the various protection methods and procedures.
Cerebral sinus thrombosis as an initial symptom of acute promyelocytic leukemia: Case report and literature review
Authors: Salgado-Lopez Laura , Custozzo Amanda , Raviv Nataly , Abdelhak Tamer , Peris-Celda Maria 
Published: March 2022

Background:
Cerebral sinus thrombosis as presentation of acute promyelocytic leukemia (AMPL) is exceptional, with only three cases registered in the literature.

Case Description:
A 24-year-old female patient was transferred to our center after a car accident. The patient had a witnessed generalized seizure while driving. Computerized tomography (CT) demonstrated a temporal intraparenchymal hemorrhage and CT venogram diagnosed a cerebral sinus thrombosis on the left transverse and sigmoid sinus. The patient underwent surgical evacuation of the hematoma and was treated with anticoagulation 48 h after surgery. Pancytopenia alerted of a possible hematological disorder. The patient was subsequently diagnosed with AMPL and treated with arsenic trioxide. The patient had a complete neurological recovery with no postoperative complications.

Conclusion:
The management of cerebral sinus thrombosis in patients with AMPL remains controversial. The previous reported cases of cerebral sinus thrombosis preceding the diagnosis of AMPL are reviewed and treatment of cerebral sinus thrombosis with anticoagulation in the setting of intraparenchymal hemorrhage and bleeding disorders is also discussed.
CORRELATION AND REGRESSION ANALYSIS OF THE DEPENDENCE OF THE SIZE OF THE RUSSIAN AND WORLD DECISION MARKETS IN THE FIELD OF ARTIFICIAL INTELLIGENCE AND NEUROTECHNOLOGY
Authors: Афанасьев Г.И. , Нестеров Ю.Г. , Панова Д.А. 
Published: March 2022

Актуальность темы обусловлена интенсивным развитием решений на основе искусственного интеллекта и нейротехнологий, а также ростом запроса на них со стороны бизнеса, общества и государства. Президент Российской Федерации, В. Путин, назвал искусственный интеллект ресурсом колоссальной силы . 11 октября 2019 года на официальном интернет-портале Государственной системы правовой информации опубликован Указ Президента Российской Федерации 490 О развитии искусственного интеллекта в Российской Федерации 1. Целью работы является изучение корреляционной зависимости размера российского и мирового рынков решений в сфере искусственного интеллекта и нейротехнологий. При выполнении работы использованы исходные данные из Дорожной карты развития сквозной цифровой технологии Нейротехнологии и искусственный интеллект опубликованной на официальном сайте Министерства цифрового развития, связей и массовых коммуникаций Российской Федерации 14 октября 2019 2.
The relevance of the topic is due to the intensive development of the researches based on artifi cial intelligence and neurotechnologies, as well as growth of requests from business, society and government. The President of the Russian Federation, Vladimir Putin, called the artifi cial intelligence as a resource of colossal power . On October 11, 2019, the Decree of the President of the Russian Federation 490 On the development of artifi cial intelligence in the Russian Federation was published on the offi cial Internet portal of the State system of legal information 1. The aim of the work is to study the correlation of market size of Russian market and global market in the fi eld of AI and neurotechnologies. When perfor ming the work, the following baseline data was used: Roadmap of end-to-end digital technology development of neurotechn ology and artifi cial intelligence published on the offi cial site of Ministry of Digital development, communications and mass communicators of the Russian Federation 14 October 2019 2.
STUDYING THE EFFECT OF “NORDIC WALKING” IN CONNECTION WITH THE DEVELOPMENT OF LANDSCAPING AND IMPROVEMENT OF SPECIAL ROUTES IN MOSCOW PARKS
Authors: Сорокопудов В.Н. , Березкина И.В. , Пирогова К.И. , Скакова А.Г. , Токарев Д.А. , Ханбабаева О.Е. , Ханбабаев Р.К. 
Published: March 2022

Занятия скандинавской ходьбой не требуют организации специальных трасс на территории. Маршруты, возможно, организовать в высоко урбанизированном ландшафте городских парков и скверов, парковом ландшафте с обычным уровнем благоустройства, а также в природном ландшафте. Уровень благоустройства трасс варьирует от низкого, представленного только мягкими покрытиями, до высокого, с малыми архитектурными формами и площадками для отдыха, стендами с информацией, освещением в ночное время. Разрабатываются трассы различной сложности и благоустроенности. В озеленении трасс применяются растения, обладающие высокой декоративностью, высокой фитонцидной активностью, а также поглощающие пыль, смог и шум мегаполиса.
Nordic walking do not require the organization of special trails on the territory. Routes may be organized in a highly urbanized landscape of urban parks and squares, a park landscape with a usual level of improvement, and in a natural landscape. The level of improvement of trails varies from low, represented only by soft surfaces, to high, with small architectural forms and areas for recreation, stands with information, lighting at night. Routes of varying complexity and livability are being developed. In landscaping routes used plants with high decorative, high phytoncidal activity, as well as absorbing dust, smog and noise of the metropolis.
INFLUENCE OF GEOLOGICAL FACTORS ON FLOODING OF OIL WELLS (BY EXAMPLE OF THE VOROBIEVSKAYA AREA)
Authors: Гасумов Р.А. , Гасумов Э.Р. , Першин И.М. , Гасумов Р.Р. , Керимов А.Г. 
Published: March 2022

В статье рассмотрен вопрос обводнения скважин и подъема водонефтяного контакта (ВНК) на примере месторождений Северного Кавказа. Приведен характер обводнения скважин нефтяных месторождений в зависимости от подъема ВНК и положения абсолютных отметок нижних перфорационных отверстий. Отмечены некоторые процессы обводнения нефтяных скважин на примере Воробьевской площади. Выявлены основные источники поступления вод при разработке нефтяных скважин.
The article considers the issue of wells fl ooding and rise of water-oil contact (WOC) by example of North Caucasus fi elds. Flooding character of oil fi elds wells depending on the WOC rise and the position of absolute levels for lower perforation holes is given. Some processes of oil well fl ooding are noted by example of the Vorobyevskaya area. The main sources of water infl ux during development of oil wells are revealed.
BIPHASE SYSTEM OF 2FM SIGNALS MATCHED WITH CONTINUOUS GAUSSIAN CHANNEL
Authors: Кузнецов В.С. 
Published: March 2022

Система двухфазных сигналов 2ФМ является частным случаем разработанного ранее созвездия сигналов 2ФМАМ. Данное созвездие сигналов обладает достаточно высокой частотной эффективности (до 16,0 бит/(сГц)) и, начиная с 2ФМ4, обеспечивает надёжную работу на границе К.Э. Шеннона без применения помехоустойчивого кодирования.
System of biphase 2FM signals is a private chance of signal constellation 2FMAM, elaborated earlier on. This signal constellation possesses by suffi ciently high frequency effi ciency (up to 16,0 bit/(sHz)) and, starting from 2FM4, provides a reliable work on the C.E. Shannon bound without application of noise immunity encoding.
Многосеточные методы с косо-эрмитовыми сглаживателями для задач конвекции–диффузии с преобладающей конвекцией
Authors: Martynova T.S. , Muratova G.V. , Shabas I.N. , Bavin V.V. 
Published: March 2022

The convection–diffusion equation with dominant convection is considered on a uniform grid of central difference scheme. The multigrid method is used for solving the strongly nonsymmetric systems of linear algebraic equations with positive definite coefficient matrices. Two-step skew-Hermitian iterative methods are utilized for the first time as a smoothing procedure. It is demonstrated that using the proper smoothers enables to improve the convergence of the multigrid method. The robustness of the smoothers with respect to variation of the Peclet number is shown by local Fourier analysis and numerical experiments.
Уравнение конвекции–диффузии с преобладающей конвекцией рассматривается на равномерной сетке центрально-разностной схемы. Многосеточный метод используется длярешения сильно несимметричных систем линейных алгебраических уравнений с положительно определенными матрицами коэффициентов. Двухшаговые косоэрмитовы итерационные методы впервые используются в качестве сглаживающей процедуры. Демонстрируется, что надлежащий выбор сглаживателей позволяет улучшить сходимость многосеточного метода. Локальный фурье-анализ и численные эксперименты приводят к выводу об устойчивости сглаживателей по отношению к изменению числа Пекле.