bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analisis Struktur Kristal dan Sifat Kemagnetan Material Komposit Perovskite Manganit Nd0,6Sr0,4MnO3/ZnO
Authors: Faruqi Muhammad Umar , Tjahjono Arif , Saptari Sitti Ahmiatri 
Published: September 2020

AbstrakPerovskite manganit merupakan salah satu rekayasa material yang dapat menghasilkan perubahan fenomena fisika. Telah berhasil dibuat material berbasis perovskite manganit Nd0,6Sr0,4MnO3 menggunakan metode sol-gel¬ dan dikompositkan dengan ZnO (Nd0,6Sr0,4MnO3)1-x/(ZnO)x (x = 0; 0,3; 0,5; 0,7). Hasil pengujian X-Ray Diffraction menunjukkan sampel Nd0,6Sr0,4MnO3 berstruktur tunggal ortorombik dan sampel ZnO pada (Nd0,6Sr0,4MnO3)0,5/(ZnO)0,5 berstruktur heksagonal tunggal. Hasil pengujian Field Emission Scanning Electron Microscope menunjukkan sampel telah homogen dengan rata-rata ukuran butir 0,188 μm. Hasil pengujian Vibrating Sample Magnetometer menunjukkan sampel (Nd0,6Sr0,4MnO3)0,5/(ZnO)0,5 bersifat paramagnetik dan mengalami penurunan sifat magnetik juga suseptibilitas seiring dengan penambahan konsentrasi material ZnO. AbstractPerovskite manganite is one of the manipulation materials that can produce changes in physical phenomena. Perovskite material Nd0,6Sr0,4MnO3 has been made with the sol-gel method and then composites with ZnO (Nd0.6Sr0.4MnO3)1-x/(ZnO)x (x = 0; 0.3; 0.5, 0, 7). The results of the X-Ray Diffraction characterization test showed samples of Nd0,6Sr0,4MnO3 and ZnO each with a single orthorhombic phase with a Pnma space group and a single hexagonal with a P63mc space group. The results of the Field Emission Scanning Electron Microscope characterization test showed that the samples were homogeneous with an average grain size of 0,188 μm. Vibrating Sample Magnetometer characterization test results show composite material (Nd0,6Sr0,4MnO3)1-x/(ZnO)x are paramagnetic and the increasing composition of ZnO material decreases the magnetization and susceptibility value of sample
Regency grouping in East Java based on Variable Type of Agriculture uses Hybrid Hierarchical Clustering Via Mutual Cluster Method
Authors: Mu'afa Sulthan Fikri , Ulinnuha Nurissaidah 
Published: September 2020

AbstractEast Java Province is one of the provinces that has the largest agricultural resources in Indonesia. The Government of East Java needs to produce superior commodities in each region. This study aims to group districts in East Java Province based on variable types of agriculture with the hybrid hierarchical clustering via mutual cluster method that combines the merging of bottom-up clustering advantages and top-down clustering advantages. Mutual cluster is a grouping with the largest distance between small groups of the shortest distance for each point outside the group. In this research, the calculation uses Euclidean distance. The data used in this study are from the East Java Central Statistics Agency (BPS) in 2017. The division calculation is obtained by finding the minimum (standard deviation of intra cluster) value and the maximum (standard deviation of inter clusters) value and using the analysis of variance calculation. The grouping results obtained were nine groups with value of 725.934, value of 1.475.978 and value of 7,908.Keywords: agriculture; Hybrid Hierarchical Clustering; mutual cluster; Euclidean distance; analysis of variance. AbstrakProvinsi Jawa Timur merupakan salah satu provinsi yang memiliki sumber daya pertanian terbesar di Indonesia. Pemerintah Jawa Timur perlu mengembangkan komoditi unggulan di tiap daerah di Jawa Timur. Penelitian ini bertujuan untuk mengelompokkan kabupaten di Provinsi Jawa Timur berdasarkan variabel jenis pertanian dengan metode hybrid hierarchical clustering via mutual cluster yaitu menggabungkan kelebihan bottom-up clustering dan kelebihan top-down clustering. Mutual cluster yakni pengelompokkan dengan jarak terbesar antara bagian dalam kelompok yang kecil dari jarak yang terpendek kepada tiap titik di luar kelompok. Dalam penelitian ini, perhitungan jarak menggunakan jarak Euclidean. Data yang digunakan dalam penelitian ini dari Badan Pusat Statistik Jawa Timur tahun 2017. Perhitungan pembagian didapat dengan mencari nilai (simpangan baku dalam klaster) yang minimal dan nilai (simpangan baku antar klaster) yang maksimal, serta digunakan perhitungan analyze of varians. Hasil pengelompokkan yang diperoleh didapatkan sebanyak sembilan kelompok dengan nilai sebesar 725.934, nilai sebesar 1.475.978 dan nilai sebesar 7,908.Kata Kunci: pertanian; Hybrid Hierarchical Clustering; mutual cluster; jarak Euclid; analisis variansi.
World Gold Price Forecast using APARCH, EGARCH and TGARCH Model
Authors: Irene Yanne , Wijaya Madona Yunita , Muhayani Aisyah 
Published: September 2020

AbstractInvestment is a process of investing money for profit or material result. One investment commodity is gold. Gold is a precious metal in which the value tends to fluctuate over time. This indicates that there is a non-constant variance called heteroscedasticity. The appropriate time-series model to solve this heteroscedasticity problem is ARCH/GARCH. However, this model can't be applied for the financial cases that have an asymmetric effect (the downward and increase tendency in the level of volatility when returns rise and vice versa). Therefore, in this research, we forecast the world gold prices using APARCH, EGARCH, and TGARCH methods. We use the monthly world gold price data from June 1993 until May 2018. The result shows that the best-fitted model to forecasting the world gold prices is EGARCH (1.1). This model has the smallest error than the other models with a Mean Absolute Percentage Error (MAPE) value of 4.66%.Keywords: return; volatilities; heteroscedasticity; asymmetric effect; APARCH; EGARCH; TGARCH. AbstrakInvestasi adalah proses menginvestasikan uang untuk keuntungan atau hasil material. Salah satu komoditas investasi adalah emas. Emas adalah logam mulia yang nilainya cenderung berfluktuasi dari waktu ke waktu. Ini menunjukkan bahwa ada varian non-konstan yang disebut heteroskedastisitas. Metode deret waktu yang tepat untuk menyelesaikan masalah ini adalah ARCH/GARCH. Namun model ini tidak dapat digunakan untuk kasus keuangan yang memiliki efek asimetris (kecenderungan menurun dan meningkatnya volatilitas ketika nilai return naik dan sebaliknya). Oleh karena itu, dalam penelitian ini, kami memprediksi harga emas dunia menggunakan metode APARCH, EGARCH, dan TGARCH dengan data harga emas dunia bulanan pada bulan Juni 1993 - Mei 2018. Hasilnya menunjukkan bahwa, di antara ketiga metode itu, model terbaik untuk memprediksi harga emas dunia adalah EGARCH (1.1) dengan nilai Mean Absolute Percentage Error (MAPE) sebesar 4,66%.Kata kunci: return; volatilitas; heteroskedastisitas; efek asimetris; APARCH; EGARCH; TGARCH.
Институт науки как пространство разноуровневых взаимодействий
Authors: Черныш Михаил Федорович 
Published: September 2020

Цитирование: Черныш М.Ф. (2020) Институт науки как пространство разноуровневых взаимодействий // Мир России. Т. 29. № 4. С. 204–216. DOI: 10.17323/1811-038X-2020-29-4-204-216
В настоящей статье книга А.Н. Олейника «Научные трансакции в науке: сети и иерархии в  общественных науках», вышедшая в 2019 г., рассматривается как повод для размышлений о состоянии российской науки, результатах и возможных перспективах ее реформирования, принципах оценки трудов ученых. Анализируются процессуальные аспекты научной деятельности, имеющей в основании систему формальных и неформальных норм. Взгляд на  науку как общественный институт позволяет определить не только направленность и  регистр осуществляемых трансакций, но и обозначить масштабы ущерба, которые могут нанести ей неудачные реформы, разрушающие логику ее внутренних коммуникаций. Современные преобразования, ставящие целью сделать российскую науку составной частью мирового научного процесса, в реальности отдаляют ее от стандартов, принятых в наиболее развитых странах, подменяют воспроизводство института в горизонтальном регистре внешним принуждением к публикационной активности. Реформы (прежде всего реформа РАН) стали одной из причин нарастающей деградации производства научных знаний в РФ.
Динамика численности и мобильность среднего класса в России в 2000–2017 гг.
Authors: Пишняк Алина Игоревна 
Published: September 2020

Цитирование: Пишняк А.И. (2020) Динамика численности и мобильность среднего класса в России в 2000–2017 гг. // Мир России. Т. 29. № 4. С. 57–84. DOI: 10.17323/1811-038X-2020-29-4-57-84
В статье представлены результаты лонгитюдного исследования среднего класса в России, демонстрирующие динамику его масштабов в 2000–2017 гг. Данные Российского мониторинга экономического положения и здоровья населения (РМЭЗ НИУ ВШЭ) – эмпирической базы исследования – позволяют применить трехкритериальную методологическую схему идентификации среднего класса по благосостоянию, социально-профессиональному статусу и самоидентификации. Согласно выбранной методологии, домохозяйства, отвечающие трем признакам среднего класса, отнесены к его ядру; характеризующиеся двумя критериями – к полуядру; а соответствующие только одному из трех – к периферии среднего класса. Обобщенный средний класс идентифицируется по сумме домохозяйств ядра и полуядра, а добавление к ним периферии очерчивает границы совокупного среднего класса. В работе уделяется внимание не только изменению размера среднего класса, но и движению его состава. Анализируя, как соотносятся доли вновь входящих в средний класс и выбывающих из него год от года, можно определить периоды, ставшие наиболее благоприятными для среднего класса, и, напротив, выявить точки проверки на прочность. Исследование демонстрирует, что на протяжении 2000-х гг. имел место стабильный рост доли среднего класса в России, но начиная с 2010 г. обозначился перелом тренда  – сжимание ядра, а в 2015 г. было зафиксировано некоторое уменьшение и совокупного среднего класса. Однако изменения, произошедшие в контексте кризиса 2014–2015 гг., нельзя назвать драматическими. Более тревожным кажется следующий факт: сокращение произошло не только за счет падения материальной обеспеченности, но и по причине потерь в социально-профессиональном статусе, при этом фиксировалась высокая мобильность состава среднего класса. Этот факт не может не вызывать беспокойства, поскольку, несмотря на плюрализм в оценках роли среднего класса в истории, сегодня он признан залогом стабильного развития для стран с переходной экономикой, поскольку представители среднего класса формируют запрос на инновации и их мягкое внедрение в жизнь, придерживаясь ориентира на невзрывные трансформации.
A few comments about therapy and miscarriage with tamponade
Authors: Ansheles Yul. Os. 
Published: September 2020

(Read in the meeting of the Obstetric and Gynecological Society in Kiev, 1892).
Mm. Yy! Leaving aside the scientific side of the science of miscarriage, which has received a sufficient degree of development in modern obstetrics, I will allow myself to stop your attention on the purely practical side of this issue, concerning the therapy of miscarriage.
F. Westemark. Experimentelle Untersuchungen über die Wehenthätigkeit des menschlichen Uterus bei der physiologischen Geburt. (Skandinavisches Arch. für Physiologie. 1893). The forced activity of the human uterus during physiological childbirth. Experimental research
Authors: Soloviev A. N. 
Published: September 2020

Westermark's article is divided into five chapters with a historical introduction. In the last day, the works of Schatz [1]), Poullet [2]), Polaillon [3]), Acconci [4]), Dhnhoffа [5]).

[1] Arch. f. Gynk. 1872. Bd. III, p. 58.
[2] Archives de Tocologie. Fvrier 1880.
[3] Arch. de Physiologie 1880, p. 1.
Meeting of obstetric and gynecological societies. Protocol No. V. Administrative session of may 12, 1894 (§ 34)
Authors: Ott D. O. 
Published: September 2020

D.O. Ott chaired.
25 members were present.1) Protocol No. IV was Read and approved.2) K. F. Slavyanskii, informed those present that the elected and honorary members of the Obstetric and Gynecological Society, professors Olshausen, Gusserow and Martin (see above, p.368) instructed him to convey to the Society their sincere gratitude for the honor.
Lessons from a Small Local Earthquake (Mw 3.2) That Produced the Highest Acceleration Ever Recorded in Mexico City
Authors: Krishna Singh Shri , Quintanar-Robles Luis , Arroyo Danny , Cruz-Atienza Victor Manuel , Espíndola Victor Hugo , Bello-Segura Delia I. , Ordaz Mario 
Published: September 2020

AbstractA reliable estimation of seismic hazard-facing Mexico City from local earthquakes has suffered from poor seismic instrumentation, complex crustal structure, large and variable site amplification, and lack of knowledge of recurrence period of earthquakes on the mapped faults. Owing to recent improvement in local seismic networks, an earthquake swarm activity, which occurred in June–August 2019, was well recorded. The largest event of the sequence, an Mw 3.2 earthquake, caused panic in the city and produced peak ground acceleration (PGA) exceeding 0.3g at the closest station (MHVM) about 1 km away. An analysis of the event shows that it had normal-faulting focal mechanism, consistent with northeast–southwest-oriented mapped faults in the region. It was located at a depth of ∼1  km and had a low stress drop (∼0.1  MPa). We find that the high PGA for this low stress-drop event resulted from high-frequency amplification at MHVM (about factor of ∼6 around 13 Hz), likely due to topographic site effects, superimposed on a pervasive broadband amplification of seismic waves at hill-zone sites in the Valley of Mexico (up to ∼10 in the frequency band of 0.2–10 Hz). Simulation of ground motion for a scenario Mw 5.0 earthquake, using an empirical Green’s function technique, reveals that such an event may give rise to significant seismic intensities in the lake-bed zone of Mexico City. The results emphasize the need to re-evaluate the seismic hazard to Mexico City from local crustal earthquakes in the Valley of Mexico.
A study of quantitative and qualitative analysis of standardized speech samples in persons suffering from dysarthria due to various neurological disorder
Authors: Maheshwari Somesh 
Published: September 2020

Background: Dysarthria is manifested as a disorder of movement, it is important to recognize that sensori-motor integration (with tactile, proprioceptive, and auditory feed-back representing the crucial sensory components) is essential to speech motor control, from this standpoint, most or all dysarthria localized to the central nervous system should be thought of as sensori-motor rather than simply motor disturbances.Methods: This non-interventional, cross-sectional comparative, observational study, conducted in 100 study subjects (50 cases and 50 controls) from March 2016 to February 2017 at MGM medical college and MY hospital Indore, MP, India.Results: The mean age of normal population was 53 years and that of dysarthric population was 55 years. Among the dysarthric group, there were 10 cases of ataxic dysarthria, 23 cases of spastic dysarthria, and 9 cases of hypo kinetic dysarthria. There were 20 cases of mild dysarthria 19 cases of moderate dysarthria and 10 cases of severe dysarthria. In ataxic dysarthria, pitch break was found in 6 out of 10 subjects. It was found that there is negative predictive value 93.33%, and positive predictive value, 77.14% in spastic dysarthria and negative predictive value, 83.33% and positive predictive value, 90.90% in ataxic, whereas negative predictive value, 85.71% and positive predictive value, 95.34% in hypo kinetic dysarthria. Conclusions: Different types of dysarthria when analyzed with software tool after extracting pitch and formants showed specific patterns. These patterns correlated with the clinical diagnosis. And Pattern recognition of different dysarthria will help to identify the types of dysarthria in scientific way and prevent inter-subject variability.
Study of association between urine albumin creatinine ratio and ankle brachial index or peripheral arterial disease in type 2 diabetes mellitus patients
Authors: Saxena Puneet , Chadha Deepak , Goyal Rishika , Shanbogh Adarsh Kenchappa 
Published: September 2020

Background: To establish association between urine albumin creatinine ratio and ankle brachial index or peripheral arterial disease in type 2 diabetes patients.Methods: Total 74 patients of type 2 diabetes mellitus of >50 years of age subjected to calculation of urine albumin creatinine ratio and ankle brachial index was calculated using doppler sonography and estimation of peripheral arterial diseases was done. The data obtained subjected to analysis.Results: In group with ABI <0.9 suggestive of PAD, mean age of the patient was 62.32±5.8 years, mean BMI was 26.11±2.48kg/m2, mean duration of diabetes was 11.19±41 years, 7 (18.92%) were smokers, 15 (40.54%) were insulin users, 27 (72.97%) were hypertensive, mean SBP was 142.49±13.46mmHg, mean DBP was 84±6.42mmHg, mean serum cholesterol was 221.35±17.10mg/dl, mean serum triglyceride was 242.81 ± 17.10mg/dl, mean serum HDL was 44.03±5.77mg/dl, mean serum LDL was 116.89±28.77mg/dl, mean urine ACR was 294.62±314.90mg/gm, prevalence of normoalbuminuria, microlbuminuria and macroalbuminuria was 12 (32.43%), 21 (56.76%) and 4 (10.81%) respectively. The statistical significant difference was found in age, duration of diabetes, number of patients on insulin therapy, systolic BP, serum cholesterol, triglyceride, LDL, HDL, urine ACR and distribution of albuminuria.Conclusions: we conclude that statistical significant relationship exist between urine ACR and PAD. Hence urinary ACR can be considered as surrogate marker for early prediction of PAD in elderly patients with type 2diabetes mellitus eventually leading to aggressive intervention for prevention and management.
Total Antioxidant Capacity, Catalase Activity and Salivary Oxidative Parameters in Patients with Temporomandibular Disorders
Authors: Omidpanah Neda , Ebrahimi Saba , Vaisi Raygani Asad , Mozafari Hadi , Rezaei Mansour 
Published: September 2020

Objectives: Temporomandibular disorders (TMD) are characterized by pain or discomfort in the temporomandibular joint, periauricular region, masticatory muscles, and neck on one or both sides. It may also be associated with joint sounds, restricted mandibular movements and mandibular deviation. Oxidative agents may have a deleterious role in the pathogenesis of joint diseases, and oxidative stress can lead to TMD. The aim of this study was to assess the oxidative stress biomarkers in the saliva of TMD patients and healthy controls.
Materials and Methods: This case-control study was conducted on 30 patients with TMDs (5 males and 25 females) with a mean age of 30.7±13.2 years, and 30 healthy controls (5 males and 25 females) with a mean age of 29.16±11.2 years. Saliva samples were collected according to the standard protocol and the total antioxidant capacity of the saliva (non-enzymatic), catalase activity, and malondialdehyde (MDA) levels were measured using the ferric reducing ability of plasma, Aebi’s method, and high-performance liquid chromatography, respectively. Finally, The MDA levels were analyzed by the Mann-Whitney test. Other quantitative parameters were analyzed by independent t-test.
Results: TMD patients had significantly higher salivary levels of MDA compared to the control group (P=0.001). But there were no significant differences in catalase (P=0.49) and total antioxidant capacity (P=0.22) of TMD patients and healthy controls.
Conclusion: It seems that oxidative stress may be involved in the pathogenesis of TMDs.
The First Detection of Co-Infection of Double-Stranded RNA Virus 1, 2 and 3 in Iranian Isolates of Trichomonas vaginalis
Authors: BOKHARAEI-SALIM Farah , ESTEGHAMATI Abdoulreza , KHANALIHA Khadijeh , ESGHAEI Maryam , DONYAVI Tahereh , SALEMI Borna S 
Published: September 2020

Background: The Totiviridae family includes a number of double-stranded RNA viruses that can infect Trichomonas vaginalis. Some T. vaginalis isolates are infected with one or more double-stranded RNA (dsRNA) viruses. In this study, different strains of double-stranded RNA virus in Iranian isolates of T. vaginalis were evaluated for the first time in Iran.
Methods: Vaginal swabs were collected from 1550 participants who were referred to hospitals associated with Iran University of Medical Sciences, Tehran, Iran from June to November 2018. T. vaginalis isolates were cultured in Diamond's modified medium. After the extraction of nucleic acids using a DNA/RNA extraction kit, RT-PCR was performed and PCR products were purified and sequenced.
Results: In general 9 (0.6%) isolates were confirmed as T. vaginalis among 1550 collected vaginal samples. Among 9 isolates of T. vaginalis, three of them were infected with TVV1. One isolate has multiple infections with T. vaginalis virus (TVV1, TVV2 and TVV3) as coinfection. The nucleotide BLAST indicated that the T. vaginalis virus 1(TVV1) isolates were most closely related to TVV1-OC5, TVV1-UR1-1.The T. vaginalis virus 2 (TVV2) sequence had also a similarity with TVV2-UR1-1, TVV2-UR1 and TVV2-OC3. The sequence of T. vaginalis virus 3(TVV3) had similarity with TVV3-OC5, TVV3-UR1-1 and TVV3-UR1.
Conclusion: Three dsRNA viruses T. vaginalis virus (TVV1, TVV2 and TVV3) were detected using RT-PCR in T. vaginalis Iranian isolates. The coinfection of TVV1, TVV2 and TVV3 in one isolate of T.vaginalis was observed for the first time in Iran.
Detection of Polycyclic Aromatic Hydrocarbons in Hide and Skin of Slaughtered Cattle and Goats in Anambra State, Nigeria
Authors: Ofomata I.B. , Nwankwo I.O. , Ogugua A.J. , Ezenduka E.V. , Nwanta J.A. , Obidike R.I. 
Published: September 2020

Background: Polycyclic Aromatic Hydrocarbons (PAHs) are among hazardous chemicals that may endanger food safety. In Nigeria, hides and skins of animals are edible and used in dishes. So, this study investigated the levels of PAHs in singed and unsinged hides and skins of animals slaughtered at three districts abattoirs (Obosi, Uga, and Kwata) in Anambra State, Nigeria.
Methods: Using gas chromatography, the levels of PAHs were determined in 120 samples of raw and singed cattle hides and goat skins. Data were analyzed using the SPSS Windows software package (version 20.0).
Results: The total PAHs of raw and singed cattle hides were respectively 0.80 and 12.33 µg/kg for Obosi district, 0.56 and 6.96 µg/kg for Uga district, and 8.30 and 16.24 µg/kg for Kwata district. Furthermore, the total PAHs levels in raw and singed goat skins were respectively 2.75 and 9.00 µg/kg for Obosi district, 1.76 and 6.42 µg/kg for Uga district, and 1.30 and 5.19 µg/kg for Kwata district. The levels of some PAHs in singed hides and skins were significantly (p<0.05) higher than the unsinged samples.
Conclusion: The materials used in singeing may increase the concentration of PAHs in singed hide and skin. Although, the known carcinogenic PAHs in the samples were below the maximum permissible level, it is probably of public health concern due to the associated health risk on cumulative exposure via the dietary consumption of such contaminated local meals.