bluuebunny/crossref_metadata_2025_split huggingface dataset:
Совет министров Российской империи перед Февральской революцией (конец 1916 – начало 1917 гг.)
Authors: Владимирович Лукоянов Игорь 
Published: December 2020

Abstract
Статья посвящена правительству Российской империи в канун революции, когда его возглавляли А.Ф. Трепов и Н.Д. Голицын. В фокусе внимания – причины и механизм смены министров и глав кабинетов, влияния на кабинет с разных сторон, в том числе и «темных сил», противостояние самодержавия и «либеральной общественности» по вопросу о кабинете. Вопреки циркулирующему в историографии мнению о развале правительственной власти накануне Февральской революции автор полагает, что наибольшей остроты кризис Совета министров достиг в декабре 1916 г. В начале 1917 г. Николай ii, делавший до этого ставку на взаимодействие кабинета с Государственной думой, принял решение о сдвиге исполнительной власти вправо. Он отказался идти на уступки либеральной оппозиции и, по-видимому, готовил государственный переворот для создания новой системы самодержавной власти в России из единомышленного правого правительства, которое опиралось бы на правое большинство Государственного совета и поддерживающую его значительную группу умеренно правых депутатов Государственной думы, сформированную вокруг национальной фракции. Для осуществления этой идеи требовался роспуск нижней палаты и изменение порядка прохождения законопроектов, чтобы передавать для дальнейшего движения мнение не только большинства, но также и меньшинства (имея в виду правое меньшинство) депутатов. Важная роль в оценке планов по изменению конфигурации правительства отводится убийству Г.Е. Распутина, чье влияние, прямое и косвенное через императрицу Александру Федоровну, на министров и их назначения по признаку личной лояльности исключало проведение единого правого курса. В целом, состояние правительства в конце февраля 1917 г. стало несколько лучше, чем в декабре 1916 г. У власти сформировалось представление о том, как выйти из правительственного кризиса, но реализация задуманных мер требовала времени – ей помешала революция.
Полифамильность русского крестьянства. Постановка проблемы
Authors: Васильевич Азовцев Андрей 
Published: December 2020

Abstract
В статье исследуется фамилиекон крестьянской общины с. Путятино Сапожковского уезда Рязанской губернии в период его становлении (начало xvii –начало xx в.). По итогам рассмотрения принципы номинации и сущность бытования денотатов данной локальной антропонимной системы характеризуются как полифамильные. Ставится вопрос о возможности экстраполяции полученных результатов на русское крестьянство в целом.
Автобиография Михаила Михайловича Карповича
Authors: Tpибунcкий Пaвeл Aлeкcaндpoвич 
Published: December 2020

Abstract
Впервые публикуется полная автобиография историка и общественного деятеля М.М. Карповича (1888–1959), находящаяся в частном архиве его сына, С.М. Карповича. Автобиография, написанная в 1956 г., легла в основу очерка Ф.Э. Мозли, который на долгие годы лег в основу известных биографий Карповича. Пространные комментарии позволяют увидеть ошибки и недоговоренности в автобиографии, повлекшие за собой схожие недочеты в работах об историке.
Stalin and An Artifact of Soviet Historiography
Authors: Halperin Charles J. 
Published: December 2020

Abstract
The incomplete five-volume Ocherki istorii istoricheskoi nauki v sssr
, published between 1955 and 1985, is a fascinating artifact of Soviet historiography’s ability to mobilize academic resources for large-scale projects. It is also a barometer of the evolution of Soviet historiography between the death of Stalin and the onset of perestroika. This essay traces its treatment of the hottest, hot-button historical issue it addressed, Stalin.
FEA of SAW penetration of Ramor 500 steel
Authors: Gur Ali Kaya , Taskaya Semih , Shankar Subramaniam , Mohanraj Thangamuthu 
Published: December 2020

Abstract
Ramor 500 steel plates are used as a ballistic material due to their greater hardness and strength properties. This steel can be produced with a 2-30 mm thickness sheet which may attain 505-590 HV hardness. In the present work, Ramor 500 steel pairs are joined using a submerged arc welding (SAW) process and taking various parameters into consideration. An austenitic additional wire is used for the welding process which contains Cr, Ni, and Mn. The source model prototype was developed using ANSYS software and considering a time-dependent three dimensional thermal model with source cooling. The highest tensile stress voltage value was determined in the sample applying a constant current of 250 A, 25 V and 30 cm × min-1welding speed. It was observed that the welding seam width increases as welding tension grows and that welding height and depth increase and decrease more or less in tandem. A ANSYS thermal cooling analysis revealed that welding tension grows with heat transfer which increases 15 mm from the main center of the welding area.
Effect of ultrasonic melt treatment on the tribological behavior of 7075 aluminum alloy
Authors: Vatansever Fahri , Tamer Erturk Alpay , Feyzullahoglu Erol 
Published: December 2020

Abstract
In this study, the tribological properties of 7075 aluminum alloy produced by ultrasonic melt treatment (UST) are investigated. Tribological properties of untreated and ultrasonically treated samples under dry and lubricated sliding conditions were analyzed experimentally by the block on ring test method. Worn surfaces of untreated and ultrasonically treated samples were scanned by 3D optical profilometer and analyzed to search out wear characteristics in the material. Furthermore, microstructural examinations were conducted to investigate the beneficial effects of UST on the microstructural properties of the alloy using optical and scanning electron microscopy. According to the results obtained, UST refines the α-Al phase of the alloy and disperses precipitates to grain boundaries more uniformly. Also, hardness and density of the alloy increased through the effect of UST. Due to these favorable effects, the wear resistance of the alloy increased and the worn surfaces of the ultrasonically treated samples exhibited lower surface roughness according to 3D surface roughness measurements.
PUBLIC NEEDS AS CONDITION FOR LIMITATING PRIVATE PROPERTY RIGHT TO LAND
Authors: Khashchina Ellina , Ginzburg Yuriy 
Published: December 2020

The article is devoted to the analysis of foreign legislation regulating the conditions for seizure of land plots to meet public needs. The evolution of approaches to understanding the private property right from Antiquity to Modern age as long as the specific character of property right to land including possibilities of its legal limitation for meeting socially prominent aims are explored. Special attention is paid to the Eastern European countries’ legislation as their statutory regulation of private property out of the command economy is relatively young. Having analyzed the constitutions, land legislation and law enforcement practice of several foreign states a conclusion is made about a similar legal structure of land withdrawal where expropriation is allowed in favor of both public and private subjects if their activity meets socially significant needs of a wide range of people and achieving this goal by any other way is impossible. The American practice of “economic analysis of law” allowing to appreciate the public benefit by the economic tools is positively assessed. It is also stated that it is impossible to envisage a list of specific situations that fall under the concept “public needs” and it is necessary to assess the correlation of public and private interests in each specific case. At the same time, in order to protect the rights of owners such an assessment should be carried out before the seizure including by public hearings.
A PROSPECTIVE COMPARATIVE STUDY OF RADIOFREQUENCY ABLATION VERSUS SUBFASCIAL ENDOSCOPIC PERFORATOR SURGERY FOR THE TREATMENT OF VARICOSITIES IN VARICOSE VEINS PATIENTS.
Authors: Harajivandas Rana Parth , Dekhaiya Firdaus A , Mehta Smit 
Published: December 2020

Introduction: Dilated & tortuous subcutaneous veins 3mm or more in diameter are known as varicose veins. When perforating veins become incompetent, it causes chronic venous insufficiency. Majority cases are managed conservatively. Cases with significant skin changes and ulcers, requires surgical procedures.
Methods: A prospective comparative study of 30 patients of varicosities, divided into two groups, A and B according to CEAP classification were assessed for VCSS preoperatively. They underwent radiofrequency ablation (RFA) and subfascial endoscopic perforator surgery (SEPS) respectively and postoperative VCSS was calculated at follow up at 4 weeks. Collected data was assessed for the change in clinical severity of the disease and compared for the complications of both surgical methods.
Results: The mean difference of pre op and post op VCSS in patient treated by RFA is 6.0 and the mean difference of pre op and post op VCSS in patient treated by SEPS is 5.4. Post RFA complications include pain (20%) and ecchymosis (13.3%). Paraesthesia and DVT was not noted. Post SEPS complications include pain (40%), ecchymosis (40%) and paresthesia (13.33%). DVT was not noted post SEPS. Only 1 case (6.66%) treated by SEPS developed recurrence post operatively. Conclusion: RFA and SEPS are two different approaches for varicosities, RFA being truncal therapy and SEPS for perforators, both are almost equally effective in context of postoperative hospital stay and improvement of VCSS; safe in terms of post op complications.
Keywords: Radiofrequency ablation (RFA), Subfascial endoscopic perforator surgery (SEPS), venous clinical severity score (VCSS), varicose veins
The Analysis of Students’ Error in Operation Reseach Test for Linear Program Topic Based on Newman’s Error Analysis (NEA)
Authors: Oktafia Mesi , Putra Aan , Habibi Mhmd 
Published: December 2020

Abstract. This study aims to analyze the types of error and its factors that cause students’ error in solving operation research problems in the program linear topic based on Newman’s Error Analysis (NEA). This research is qualitative research by using a descriptive approach. The subjects in this study are fourth-grade college students in the Mathematics Education Program at State Islamic Institute of Kerinci that chosen by purposive sampling technique. The data was collected by using a test and interview. The data analysis was done descriptively. Based on the research findings, the types of students error in solving operation research problems were reading errors, comprehension errors, transformation errors, process skill errors, and encoding errors. The factors that cause the students' error were the students can not interpret, understand and understand the meaning of the questions overall; can not determine the formula to solve the problems; can not carry out the algorithm of arithmetic operations.

Abstrak. Penelitian ini bertujuan untuk menganalisis jenis kesalahan dan faktor yang menyebabkan kesalahan mahasiswa dalam menyelesaikan soal riset operasi pada materi program linier berdasarkan Newman’s Error Analysis (NEA). Penelitian ini merupakan penelitian kualitatif dengan menggunakan pendekatan deskriptif. Subjek penelitian ini adalah mahasiswa semester IV program studi Tadris Matematika IAIN Kerinci tahun akademik 2018/2019 yang dipilih dengan teknik purposive sampling. Data dikumpulkan melalui tes dan wawancara dan dianalisis secara deskriptif. Berdasarkan temuan penelitian diketahui bahwa jenis kesalahan mahasiswa dalam menyelesaiakan soal riset operasi materi program linier berdasarkan Newman’s Error Analysis adalah kesalahan dalam membaca soal, kesalahan dalam memahami masalah, kesalahan dalam transformasi, kesalahan dalam keterampilan proses, dan kesalahan dalam penulisan jawaban akhir. Faktor-faktor penyebab kesalahan tersebut meliputi: mahasiswa tidak bisa memaknai, mengerti dan memahami makna keseluruhan dari soal yang berikan; tidak bisa menentukan rumus yang digunakan; dan tidak bisa menajalankan tahapan-tahapan operasi hitung yang digunakan untuk menyelesaikan soal.
The Effect of Realistic Mathematics Education Approach on Mathematical Problem Solving Ability
Authors: Anggraini Reri Seprina , Fauzan Ahmad 
Published: December 2020

Abstract. The improvement of mathematical problem-solving ability was the aim of this study through the application of the Realistic Mathematics Education approach compared to conventional learning according to the students' self-efficacy level. This study used a quasi-experimental study with a static group design conducted in eighth-grade students at SMP Negeri 1 Kerinci and SMP Negeri 5 Kerinci. Data collected through the questionnaire to determine students’ self-efficacy level and the test of students’ mathematical problem-solving abilities. The hypothesizes was tested using a t-test. The results showed that students’ mathematical problem-solving abilities who learned using the RME approach were higher than students’ abilities who learned using conventional learning. In addition, the mathematical problem-solving abilities of students who have low self-efficacy who learned using the RME approach were higher than those who learned using conventional learning.

Abstrak. Peningkatan kemampuan pemecahan masalah matematis menjadi tujuan penelitian ini melalui penerapan pendekatan Realistic Mathematics Education (RME) yang dibandingkan dengan kelas yang menerapkan pembelajaran konvensional menurut tingkat self-efficacy siswa. Penelitian ini menggunakan penelitian kuasi eksperimen dengan desain static group design yang dilaksanakan di kelas VIII pada SMP Negeri 1 Kerinci dan SMP Negeri 5 Kerinci. Data dikumpulkan melalui angket untuk menentukan tingkat self-efficacy dan tes kemampuan pemecahan masalah matematis. Hipotesis diuji dengan menggunakan uji t. Hasil penelitian menunjukkan kemampuan pemecahan masalah matematis siswa yang belajar menggunakan pendekatan RME lebih tinggi daripada siswa yang belajar menggunakan pembelajaran konvensional, dan kemampuan pemecahan masalah matematis siswa yang memiliki self-efficacy rendah yang belajar dengan menggunakan pendekatan RME lebih tinggi daripada yang belajar dengan menggunakan pembelajaran konvensional.
Forage yield and nutritive value of hay from sorghum-sudangrass hybrids
Authors: Santos Hosnerson Renan de Oliveira , Figueiredo Mauro Pereira de , Castro Ingrid Thalia Prado de , Lima Mário Henrique Melo e , Nascimento Luiza Maria Gigante , Soares Thaís Santana , Ramos Barbára Louíse Pacheco , Macêdo Alberto Jefferson da Silva , Silva Jhon Barbosa da 
Published: December 2020

The objective was to evaluate agronomically nine sorghum-sudangrass hybrids (Sorghum bicolor × Sorghum sudanense) and the nutritive value of their respective hays. The experimental design used was randomized blocks in a 3 × 9 factorial scheme, with three replications. Three cuts were made: 42 days after germination, 29 days after regrowth, and 28 days after the second regrowth. All hybrids showed a higher number of plants ha–1 (P < 0.05) in the second cut. For the green matter and dry matter production of the hays, the values ranged from 49.16 to 62.07 t ha–1 and 9.07 to 11.43 t ha–1, respectively. There were no differences (P > 0.05) in dry matter, mineral matter, or ether extract. The hybrids 1013020, BRS 810, 1013016, and 1624F016 showed higher values of crude protein (CP) of 16.49, 16.17, 16.08, and 15.88%, respectively. Differences were observed (P < 0.05) in neutral detergent fiber (NDF) content. The hybrids 1013020, BRS 802, 1013021, 1013016, BRS 810, and 1624F006 presented lower levels of NDF (60.57, 60.74, 62.15, 62.37, 62.58, and 64.70%, respectively). The hybrids BRS 802, 1013016, BRS 810, and 1624F006, stood out above the others, presenting high forage yield and adequate nutritive value (CP content >13% and NDF content <65%).
Belarus in the historical politics of Poland (2005–2020)
Authors: Tsimbal Alexander Georgievich 
Published: December 2020

The political use of history to affirm dominant political discourses and form a system of loyalty has become an integral part of modern domestic and foreign politics. Poland represents a classic example of the instrumentalisation of history. History has become the subject of controversy, and sometimes acute conflicts of Poland with Russia, Ukraine, Germany and Lithuania. Until recently, Belarus remained a blank spot in Polish historical politics. The aim of the research is to study the Belarusian direction of Polish historical politics. The research is based on an institutional approach. The article reveals the influence of the foreign factor on the formation of Polish historical politics. The conceptual foundations and goals of the Polish historical politics in relation to Belarus are analysed. The characteristics of actors, institutions and practices of Polish historical politics are given. In conclusion, we raise the question of assessing the effectiveness of Polish historical politics in Belarus.
Changes in Resting-State Cerebral Activity in Women With Polycystic Ovary Syndrome: A Functional MR Imaging Study
Authors: Li Guanghui , Hu Junhao , Zhang Si , Fan Weijie , Wen Li , Wang Guangxian , Zhang Dong 
Published: December 2020

BackgroundPrevious studies have found that women with polycystic ovary syndrome (PCOS) have some degree of brain function change as well as cognitive function and emotions, such as poor executive functioning and memory, anxiety and depressive symptoms. However, the neurobiological mechanisms underlying these alterations have not yet been clarified.MethodFasting serum hormone testing, neuropsychological testing and resting-state magnetic resonance imaging (rs-fMRI) were performed in 41 women with newly diagnosed PCOS and 41 healthy controls matched by age and education during their 2–5 days of menstrual period. Analysis of the amplitude of low-frequency fluctuation (ALFF) was used to calculate the seed points. Then, the functional connectivity (FC) values between these abnormal seed points and other voxels in the whole brain were calculated. Finally, the correlations among clinical indexes, neuropsychological evaluation scores, and neuroimaging data were analyzed.ResultsCompared with the control group, the PCOS group showed higher luteinizing hormone (LH) and serum insulin levels, worse sleep quality, increased depressive and anxiety state scores, and memory and executive function impairments. Pearson’s correlation analysis showed that the decreased ALFF value in the left middle frontal gyrus (MFG.L), which is related to poor executive performance and depressive disorders, was negatively correlated with the plasma insulin level in subjects with insulin resistance. Furthermore, the increased FC strength between the MFG.L and left inferior frontal gyrus (IFG.L) was positively correlated with the serum testosterone level. The enhanced FC strength between the left posterior cingulate gyrus (PCG.L) and triangular part of the left inferior frontal gyrus (IFGtriang.L) was negatively correlated with the plasma LH level. When use the right middle occipital gyrus (MOG.R) as the seed point, the FC strength with the right inferior occipital gyrus (IOG.R), which is associated with impaired memory, was decreased.ConclusionThe ALFF and FC results elucidated brain functional abnormalities at the regional and network levels in women with PCOS, while correlation analyses simultaneously demonstrated that these alterations were associated with serum hormones and cognitive function. These results may provide useful information regarding the potential mechanisms of cognitive impairment and emotional changes in this population.
Accuracy and Workflow Improvements for Responsive Neurostimulation Hippocampal Depth Electrode Placement Using Robotic Stereotaxy
Authors: Karas Patrick J. , Giridharan Nisha , Treiber Jeffrey M. , Prablek Marc A. , Khan A. Basit , Shofty Ben , Krishnan Vaishnav , Chu Jennifer , Van Ness Paul C. , Maheshwari Atul , Haneef Zulfi , Gavvala Jay R. , Sheth Sameer A. 
Published: December 2020

Background: Robotic stereotaxy is increasingly common in epilepsy surgery for the implantation of stereo-electroencephalography (sEEG) electrodes for intracranial seizure monitoring. The use of robots is also gaining popularity for permanent stereotactic lead implantation applications such as in deep brain stimulation and responsive neurostimulation (RNS) procedures.Objective: We describe the evolution of our robotic stereotactic implantation technique for placement of occipital-approach hippocampal RNS depth leads.Methods: We performed a retrospective review of 10 consecutive patients who underwent robotic RNS hippocampal depth electrode implantation. Accuracy of depth lead implantation was measured by registering intraoperative post-implantation fluoroscopic CT images and post-operative CT scans with the stereotactic plan to measure implantation accuracy. Seizure data were also collected from the RNS devices and analyzed to obtain initial seizure control outcome estimates.Results: Ten patients underwent occipital-approach hippocampal RNS depth electrode placement for medically refractory epilepsy. A total of 18 depth electrodes were included in the analysis. Six patients (10 electrodes) were implanted in the supine position, with mean target radial error of 1.9 ± 0.9 mm (mean ± SD). Four patients (8 electrodes) were implanted in the prone position, with mean radial error of 0.8 ± 0.3 mm. The radial error was significantly smaller when electrodes were implanted in the prone position compared to the supine position (p = 0.002). Early results (median follow-up time 7.4 months) demonstrate mean seizure frequency reduction of 26% (n = 8), with 37.5% achieving ≥50% reduction in seizure frequency as measured by RNS long episode counts.Conclusion: Prone positioning for robotic implantation of occipital-approach hippocampal RNS depth electrodes led to lower radial target error compared to supine positioning. The robotic platform offers a number of workflow advantages over traditional frame-based approaches, including parallel rather than serial operation in a bilateral case, decreased concern regarding human error in setting frame coordinates, and surgeon comfort.
The Influence of Factors Such as Parenting Stress and Social Support on the State Anxiety in Parents of Special Needs Children During the COVID-19 Epidemic
Authors: Ren Jie , Li Xingkai , Chen Shudan , Chen Suiqing , Nie Yangang 
Published: December 2020

ObjectivesThe study aims to investigate the state anxiety of parents of special needs children during the 2019 coronavirus disease (COVID-19) epidemic and the influence of parental stress, social support, and other related variables on the anxiety of parents.MethodsBespoke questionnaires of children’s and parent’s mental and behavioral problems during the epidemic were used in the study. We also used the State Anxiety Inventory (S-AI), the Parenting Stress Index—Short Form-15 (PSI-SF-15), the NEO Five-Factor Inventory (NEO-FFI), and the Multidimensional Scale of Perceived Social Support (MSPSS). The data used in the study were pooled from an online survey of parents of special needs children and analyzed by one-way analysis of variance (ANOVA) and multiple linear regression.ResultsOverall, 1,451 individuals were included, of which 402 were fathers (27.71%) and 1,049 were mothers (72.29%). ANOVA results showed that educational background, family monthly income, and type of their child’s disability made parents’ state anxiety significantly different. The results of multiple linear regression showed that during the epidemic, social support negatively predicted parents’ state anxiety (B = −0.15, p &lt; 0.001), whereas parenting stress (B = 0.07, p = 0.001) and parental mental and behavioral problems (B = 0.37, p &lt; 0.001) positively predicted parents’ state anxiety.ConclusionsDuring the outbreak of COVID-19, parents of special needs children suffered mental and behavioral problems, together with parenting stress and social support, which influenced their state anxiety. These findings can be used to develop relevant psychological interventions to improve the mental health of vulnerable groups during a pandemic like COVID-19.