bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Influence of Padlets in Learning Writing Skills on Students of Madrasah Tsanawiyah 2 Payakumbuh
Authors: Monika Helhadiani 
Published: November 2022

This study aims to knowing the influence of padlets in learning arabic writing skills on students of madrasah tsanawiyah 2 Payakumbuh. The research method used is quantitative study approach that is true experiment method, and data are presented in the form of numbers and analyzed by statistical methods, The method of data collection in this study was to use an writing test by using difference analysis. and the research sample consisted of two groups, namely the control group and the experiment group, each consisting of 20 students, all of them is eighth grade students of Madrasah Tsanawiyah 2 Payakumbuh. This study reached the results, padlet had an effect on student’s arabic writing skill. This can be seen from the average value of the hypothesis thes whose result is 0,02 less than the value of sig.0,05 indicates that this padlet has an influence on learning arabic writing skil for eighth grade students of Madrasah Tsanawiyah 2 Payakumbuh
PENERAPAN GERAK BROWN GEOMETRIK PADA DATA SAHAM PT. ANTM
Authors: Putri Darvi Mailisa , Hasibuan Lilis Harianti 
Published: November 2022

Penelitian ini akan mengkaji aplikasi gerak Brown geometrik pada data harga saham PT. Antm. Data harga saham yang digunakan adalah data harga saham penutupan dari tanggal 02 Januari 2019 sampai dengan 30 Desember 2019 dengan periode harian. Dalam mengaplikasikan data harga saham PT. Antm pada gerak Brown geometrik diperlukan nilai return harga saham yang memenuhi asumsi dari gerak Brown geometrik. Selanjutnya melalui parameter-parameter yang diperoleh dari return harga saham dan membangkitkan data berdistribusi normal atau sebanyak data yang diamati dan harga awal yang telah diketahui maka didapat plot hasil dari data harga saham PT. Antm yang telah memenuhi asumsi gerak Brown geometik.AbstractThis research will examine the application of geometric Brownian motion on the stock price of PT. Antm. The stock price data used is the closing stock price data from January 02nd 2019 to December 30th 2019 with a daily period. In applying the stock price of PT. Antm on geometric Brownian motion requires a stock price return value that satisfies the assumptions of geometric Brownian motion. Futhermore, through the parameters obtained from the stock price return and generate normally distributed data or as much as the observed data and the known intial price, then we get the plot of PT. Antm has fulfilled the assumption of geometric Brownian motion.
KEUNTUNGAN MAKSIMUM PRODUKSI PABRIK TAHU SAPARINDUAN SAIYO SAKATO DENGAN PENERAPAN METODE SIMPLEKS
Authors: Santi Nirmala 
Published: November 2022

Pengusaha dalam menjalankan usahanya tentu ingin mencapai hasil yang maksimal (persoalan optimalisasi), dengan keterbatasan modal yang dimiliki. Sama halnya dengan pemilik Pabrik Tahu Saparinduan Saiyo Sakato (SSS). Sebagai satu-satunya pabrik yang ada di Nagari Sungai Janiah, dan telah menyerap tenaga kerja yakni pemuda nagari, Pabrik Tahu SSS menjadi perhatian peneliti. Penelitian ini juga dilatarbelakangi oleh keinginan peneliti untuk menerapkan secara nyata teori dalam matematika dalam kehidupan sehari-hari. Sehingga masyarakat terutama disekitar tempat penelitian dapat mengetahui, bahwa ilmu matematika memiliki implementasi dalam kehidupan nyata, yang tidak hanya sekedar simbol-simbol yang menurut banyak pandangan masyarakat sulit. Penelitian ini bertujuan untuk mengetahui keuntungan maksimum yang dapat diperoleh Pabrik Tahu SSS dalam satu hari. Dari data yang diperoleh, dan setelah dilakukan pemodelan permasalahan dalam program linear, serta perhitungan menggunakan metode simpleks diperoleh bahwa keuntungan maksimum yang dapat dicapai Pabrik Tahu SSS untuk tiap unit tahu besar dan kecil dalam sehari adalah Rp. 11.266,66817 dengan tahu besar = 0,78168 dan tahu kecil = 99,21832. Pendapatan per-unit Rp. 11.266,66817 sehari dikali produksi maksimal sehari yaitu 100 unit, maka diperoleh keuntungan maksimum sehari Rp. 1.126.666,817.AbstractEntrepreneurs in running their business certainly want to achieve maximum results (optimization issues), with limited capital. The same is the case with the owner of the Saparinduan Saiyo Sakato Tofu Factory (SSS). As the only factory in Nagari Sungai Janiah, and which has absorbed the workforce, namely the village youth, the SSS Tofu Factory is the concern of researchers. This research is also motivated by the desire of researchers to actually apply theories in mathematics in everyday life. So that the community, especially around the research area, can know that mathematics has an implementation in real life, which is not just symbols which according to many people's views are difficult. This study aims to determine the maximum benefits that can be obtained by the SSS Tofu Factory in one day. From the data obtained, and after modeling the problems in a linear program, and calculations using the simplex method, it was found that the maximum profit achieved by the SSS Tofu Factory for each big and small tofu unit in a day was Rp. 11.266.66817 with big tofu = 0.78168 and small tofu = 99.21832. Income per unit Rp. 11,266,66817 a day multiplied by the maximum daily production of 100 units, then the maximum daily profit is Rp. 1,126,666,817.
PERAMALAN TINGKAT PRODUKSI KAKAO TAHUN 2021 DI PROVINSI SUMATERA UTARA DENGAN METODE DOUBLE EXPONENTIAL SMOOTHING BROWN
Authors: Handayani Tri , Lubis Riri Syafitri , Aprilia Rima 
Published: November 2022

Cocoa production in North Sumatera Province from 2007 to 2018 tends to decline. The low cocoa production in North Sumatera Province is below optimal conditions which impact on the economic sector, so forecasting is necessary in order to support the development of the upcoming cocoa industry in North Sumatera Province. The purpose of this study was to determine the amount of cocoa production in 2021 in North Sumatera Province using the double exponential smoothing brown method. With parameter values and values obtaining the form of the equation for forecasting the level of cocoa production in 2021 in North Sumatera Province using double exponential smoothing brown is . Form the research result, the amount of cocoa production in 2021 in North Sumatera Province obtained tons.
APLIKASI TEOREMA HUKUM LEMAH BILANGAN BESAR PADA PEMBUKTIAN TEOREMA APROKSIMASI WEIERSTRASS
Authors: Ul Hasanah Fitri Rahmah , Putri Darvi Mailisa 
Published: November 2022

Teorema aproksimasi weierstrass dinyatakan sebagai fungsi kontinu pada selang tertutup dan terbatas yang daoat didekati dengan barisan suku banyak. Salah satu pembuktian teorema ini dengan menggunakan polinomial Bernstein ). Oleh karena, dimana untuk ukuran cukup besar maka ) dirumuskan menjadi , dimana berlaku hukum lemah bilangan besar dengan . Oleh karena itu, dalam tulisan ini dibahas pembuktian teorema aproksimasi weierstrass dengan hukum lemah bilangan besar.Kata Kunci: bilangan besar, Weierstrass, polinomial Bernstein.
Effects of gamma irradiation, osmotic and freezing processes on chemical, microbial, and pest characteristics of dried Iranian barberry fruit during storage
Authors: Bideli N. , Ahmadi-Roshan M. , Berenji Ardestani S. 
Published: November 2022

AbstractSeedless barberry is a medicinal shrub and has been cultivated in Iran for more than two centuries. It is perishable with short shelf-life. Irradiation has shown to improve microbial safety and expands durability of raw fruits. Undoubtedly, current food processes undesirably affect bioactive compounds such as anthocyanins. Fresh barberry fruit was harvested in Birjand city by methods including “cutting branches” and “collecting fallen fruit under shrubs”, which locally are known as “puffy barberry” and “jewel barberry”, respectively. Some of the fresh barberries were treated by osmotic solution and then they have been dried. Untreated dried fruit was processed by freezing. Osmotic and frozen treatments were packed in polyamide film. Some of the dried jewel/puffy barberries packed in polyamide film were irradiated at doses of 0, 3, 5, and 10 kGy. All samples were stored at 4 and 25 °C for 6 months. Effects of barberry types (puffy/jewel), processes, storage time and temperature on chemical, microbial, and pest characteristics of dried barberry fruit were evaluated. Puffy barberry gamma irradiated with 5 kGy after 6 months of storage at 4 °C showed acceptable properties. Irradiation and storage at 4 °C were reported as optimal processing and storage conditions for barberry fruit.
SEROPREVALENCE OF HBsAg, Anti-HBs, Anti-HCV, and Anti-HIV IN PATIENTS WITH ALCOHOL AND SUBSTANCE ABUSE IN AN AMATEM CLINIC IN EASTERN TURKIYE: A SIX-YEAR RETROSPECTIVE EVALUATION
Authors: ÖNER Pinar , YILMAZ Seda , KILIÇ Nülüfer , ÖZSOY Filiz 
Published: November 2022

Aim
Substance abuse and concomitant infections are important causes of morbidity and mortality. Yet, the number of epidemiological studies regarding infectious diseases in people with substance abuse are limited in our country. In this study, the aim was to investigate the frequency of illegal alcohol and substance use in an Alcohol and Drug Research, Treatment and Training Centres (AMATEM) clinic in Turkey as well as the HBsAg, anti-HBs, anti-HCV, and anti-HIV parameters between the years of 2016-2021.
Material and Method
HBsAg, anti-HBs, anti-HCV, and anti-HIV tests were conducted using the ELISA technique in 6881 alcohol and substance use disorder (ASUD). Urine samples from ASUD’s were analyzed for alcohol, cannabis, and cocaine metabolites. The results were evaluated retrospectively.
Results
All of the 6881 ASUD’s were male with a mean age of 32.18±9.66 years. Of the 6881 ASUD’s included in the study, 4107 (59.7%) were opioid addicts; 1479 (21.5%) were mixed drug addicts; 897 (13%) were alcohol addicts; and the rest were addicts with other types of substance use. The mean age of the alcohol users was 45.33±13.03 and the mean age of opioid users was 29.90±7.13. The percentage of opioid addiction in 2016 was 71.2% which dropped to 28.7% in 2021. Meanwhile, the percentage of alcohol addiction was 13.6% in 2016 and increased to 21.4% in 2021; and the percentage of mixed drug use was 8.7% in 2016 and increased to 36.8% in 2021. HBsAg-positivity in opioid users (56.7%) was higher compared to cannabis users (2.6%) and mixed drug users (22.3%). Anti-HCV positivity of opioid users (69.4%) was found to be higher compared to alcohol (9.4%), cannabis (2%), and mixed drug (16.2%) users, and this finding was statistically significant (p=0.0001). Anti-HBs positivity of opioid users (63.1%) was found to be higher compared to alcohol (9.9%), cannabis (3%), and mixed drug (21%) users, and this finding was statistically significant (p=0.0001). Anti-HIV was determined negative in all ASUD’s. The highest rates of HBsAg, anti-HCV and anti-HBs positivity were found in the 26-30 years of age.
Conclusion
These findings indicate a high prevalence of intravenous substance abuse in the 26-30 years age group in our region as well as the high HBV and HCV rates in this patient group.
Ground-Motion Similarities in the Valley of Mexico from Subduction Earthquakes
Authors: Baena-Rivera Marcela , Sánchez-Sesma Francisco J. , Arciniega-Ceballos Alejandra , Pérez-Rocha Luis Eduardo , Cruz-Jiménez Hugo 
Published: November 2022

ABSTRACT
Since the eighties, several subduction earthquakes on the Mexican Pacific coast have been recorded at accelerometric networks in the Valley of Mexico (VM). Such are the cases of the 19 September 1985 M 8.1 Michoacán earthquake and the recent 7 September 2021 M 7.1 Guerrero earthquake. These events have caused from minor damages to widespread structural collapses in the VM. The vertical ground motion recorded at several sites in the VM clearly show recurrent Rayleigh wavetrains, which present similar characteristics in period, amplitude, and duration among stations. These characteristics are very stable in space and time. On the other hand, the corresponding horizontal ground motion are strongly affected by the surface geology of the valley because of the shear wave-energy trapped at the uppermost soft layers. In addition, the horizontal response at several soft-ground sites displays significant azimuthal effects. Based on these observations, we analyze thrust-faulting subduction earthquakes that occurred along the Mexican Pacific coast from Michoacán to Chiapas states, all recorded at the VM accelerometric networks. We identified similarities in the vertical and horizontal ground motion not only among stations but also between seismic events recorded at the same station. The local generation of surface waves is studied using a kinematic analysis in the frequency–wavenumber domain (f-k), and sundry techniques in frequency and time domains. As a preliminary explanation, our analysis suggests that azimuthal effects related to thrust faulting subduction earthquakes strongly influence the local generation of surface waves affecting the 3D response of the valley. Moreover, for all earthquakes in all stations, our results show that while the vertical ground motion is similar and its amplifications are small and governed by earthquake size, the two horizontal components reveal strong site effects.
A Caribbean and Central America Seismic Hazard Model for Sovereign Parametric Insurance Coverage
Authors: Salgado-Gálvez Mario Andrés , Ordaz Mario , Singh Shri Krishna , Pérez-Campos Xyoli , Huerta Benjamín , Bazzurro Paolo , Fagà Ettore 
Published: November 2022

ABSTRACTA fully probabilistic seismic hazard model with a single domain and sufficiently accurate resolution level for national analyses has been developed, for the Caribbean and Central America, to support the design of parametric earthquake policies offered by the Caribbean Catastrophe Risk Financing Facility to sovereign countries. This model provides updated earthquake hazard and risk information for 34 countries in the region, allowing to obtain detailed seismic hazard results at any location within the area of analysis. Besides a detailed zonation of subduction and crustal sources, updated seismicity and tectonic data have been utilized. Different seismicity, geometric, and rupture models have been adopted using state-of-the-art methodologies and tools. The main output of this model is a stochastic event-set, which is the hazard representation utilized not only to compute a long-term overview of the seismic hazard in the region but also to probabilistically estimate earthquake modeled losses at a national level that are used as triggers for underpinning parametric earthquake insurance. Although not of direct interest for parametric insurance purposes, this model also yields hazard maps and uniform hazard spectra for different return periods. For the operational purposes of the parametric insurance coverage, a postevent tool was developed to calculate, in near-real time, the ground-motion intensities associated with any earthquake within the region under study. This is done automatically by choosing a rupture plane from the moment tensor solution based on predefined rules while maintaining full consistency with all the assumptions made in the probabilistic seismic hazard analysis. The predicted ground motions in the region and the vulnerability functions developed for the exposed assets are then used to estimate whether the economic losses for each affected country exceed the trigger value stated in the country-specific insurance policy conditions and whether a payout should be issued, which is typically disbursed within 14 days.
Reporting of Helicobacter pylori associated gastroduodenal diseases: A clinicopathological approach
Authors: Roy Asitava Deb , Singh Rishav Kumar , Paul Uttam Kumar , Mookim Neha , Das Dipmala 
Published: November 2022

is one of the most important causes of the varied spectrum of gastroduodenal diseases. It is important to have a collaborative approach between clinicians and pathologists for early initiation of treatment in patients and control the progression of the disease.To evaluate the clinico-histopathological spectrum of gastroduodenal diseases with respect to infection and provide recommendations for reporting and management of the same.All patients of chronic dyspepsia not responding to conventional treatment were subjected to endoscopy, and mucosal biopsy samples were collected. A rapid urease test (RUT) and histopathology was performed on these samples. A histopathological evaluation was done with special reference to the Updated Sydney System for reporting of chronic gastritisThe specificity, sensitivity, positive predictive value, negative predictive value, and diagnostic accuracy of RUT were 97.22%, 94.04%, 98.75%, 87.5%, and 95%, respectively. The specificity, sensitivity, PPV, NPV and diagnostic accuracy of endoscopy were calculated as 98.68%, 88.5%, 95.83%, 96.15% and 96.07% respectively.A clinicopathological approach for diagnosis of associated gastroduodenal diseases which includes clinical assessment, endoscopic evaluation, RUT and histopathological analysis is of prime importance for effective management of such patients.
Fixation stability scoring in inter-trochanteric femur fractures treated with osteosynthesis: A retrospective observational study
Authors: Pradeep H  , Venkatesh V  , Reddy Kambam Gowtham , Acharya Markandaiya 
Published: November 2022

To find out the validity of a newly proposed fixation stability scoring system in IT fractures treated with osteosynthesis and its limitations if any.: Retrospective analysis of hospital records of patients with various types of intertrochanteric fractures treated surgically at Sri Siddhartha medical college, Tumkur from January 2021 till August 2022. The exclusion criteria were non-ambulatory patients prior to fall, non surgically treated patients, patients loosing follow up or patients who are not alive at the time of study. The scoring was done by three different observers for each patient’s immediate post operative x-ray, repeated at 1 month interval. Radiographs at the final follow up were assessed for fracture union or fixation failure. Parameters of the scoring system: 1) cortical buttress in AP view radiograph, 2) cortical buttress in lateral view radiograph, 3) Tip apex distance (TAD) of principle lag screw, 4) Entry point (in case of IM nail), 5) Location of tip of principle screw in the desired Cleveland zone. 6) Placement of Richard screw in the inferior half of neck (in case of DHS), 7) Use of additional derotation screw (DRS) (in case of DHS). Scores of all the observers showed statistically significant correlation with fixation failure rates. Results were good with the score of 7.5 and above, fair with 6.5 and above and poor when the score was below 6.5. The minimum acceptable score was 6.5 for extra-medullary devices and 7 for intra-medullary devices.: The newly proposed scoring system appears to be valid and promising intra operative guide for fixation of intertrochanteric fractures with a few limitations. Large scale multi centre prospective studies are needed in the future to support the current study or to further simplify this scoring system.
Dynamika i kontekst doświadczeń emocjonalnych pracujących zawodowo rodziców w czasie pandemii COVID-19
Authors: Frąckowiak-Sochańska Monika , Mroczkowska Dorota , Kubacka Małgorzata 
Published: November 2022

Celem artykułu jest rekonstrukcja doświadczeń emocjonalnych pracujących zawodowo rodziców w kontekście zmian wywołanych przez pandemię COVID-19, związanych z rozmyciem czasowych i przestrzennych granic między pracą zawodową a życiem prywatnym. Autorki stawiają tezę, że konfiguracja praca zawodowa–rodzina stanowi kluczowy czynnik pośredniczący pomiędzy kryzysem makrospołecznym (globalnym) a kondycją emocjonalną jednostek. Ramy teoretyczne podjętych analiz wyznaczają teorie obszarów granicznych (ang. boundary theory i work-family border theory) wzbogacone o wybrane założenia teorii z zakresu socjologii emocji sytuujących się na pograniczu podejść interakcjonistycznego i kulturowego. Podstawę empiryczną artykułu stanowią badania własne obejmujące wywiady pogłębione z pracującymi zawodowo rodzicami co najmniej jednego dziecka poniżej 12. roku życia, którzy na skutek pandemii pracowali w domu. Wnioski z badań pozwalają opisać warunki, w których na skutek działania procesów globalnych dochodzi do przekształceń w obszarach pracy zawodowej i życia rodzinnego, prowadzących do destabilizacji emocjonalnej jednostek. Wyniki badań pozwalają również sformułować głos w dyskusji dotyczącej teorii obszarów granicznych – opisujących relacje pomiędzy pracą zawodową a życiem prywatnym wobec narastającej złożoności, płynności i niepewności współczesnych powiązań między nimi.
МЕТОДОЛОГИЯ РАСЧЕТА КОМБИНИРОВАННОЙ СИСТЕМЫ УРАВНОВЕШИВАНИЯ ПРИВОДА ШТАНГОВОЙ УСТАНОВКИ ПРИ КОЛЕБАНИЯХ ДИНАМИЧЕСКОГО УРОВНЯ
Authors: Уразаков Камил Рахматуллович , Тугунов Павел Михайлович 
Published: November 2022

Актуальность. Уравновешенность привода является одним из ключевых факторов, определяющих эффективность эксплуатации скважин установками скважинных штанговых насосов. Это имеет особое значение для малодебитных скважин, которые работают на пределе рентабельности, вследствие низких дебитов и высокого энергопотребления. Перевод их на периодический режим приводит к системным колебаниям динамического уровня. Изменение динамического уровня обуславливает изменение нагрузок, действующих на штанговую колонну и балансирный привод. Для сохранения уравновешенности станка-качалки в этих условиях необходима корректировка положения уравновешивающих контргрузов. Цель: анализ автоматической системы уравновешивания станка-качалки, включающей дополнительный балансирный контргруз, с возможностью автоматического перемещения, положение которого вдоль балансира регулируется за счет вспомогательного электродвигателя; разработка методологии расчета параметров автоматической системы динамического уравновешивания, позволяющей проводить расчеты механизма выравнивания нагрузок. Методы: экспресс-метод для оценки параметров контргрузов, учитывающий статические составляющие нагрузок на плунжер и привод, и детальный метод с учетом динамических составляющих нагрузок. Результаты. Показано, что оба метода расчета дают приемлемые результаты с точки зрения обеспечения минимального крутящего момента на кривошипном валу, выравнивания степени загрузки вала и электродвигателя в течение цикла откачки. Выводы. Установлено, что требуемый (для поддержания динамической уравновешенности) вес дополнительного балансирного контргруза в значительной степени возрастает по мере роста разницы динамического уровня в процессе откачки и снижается при увеличении «длины хода» контргруза вдоль балансира. Плечо кривошипного груза при увеличении веса дополнительного балансирного контргруза уменьшается вследствие снижения вклада кривошипной составляющей в системе комбинированного уравновешивания.