bluuebunny/crossref_metadata_2025_split huggingface dataset:
Navigated multiplanar osteotomies for spinal primary bone tumors
Authors: Landriel Federico , Albergo José Ignacio , Farfalli Germán , Yampolsky Claudio , Ayerza Miguel , Aponte-Tinao Luis , Teixeira William , Ritacco Lucas , Hem Santiago 
Published: February 2022

Background:
Establishing the proper diagnosis and rendering appropriate treatment of spinal primary bone tumors (SPBT) can result in definitive cures. Notably, malignant, or benign SPBT (i.e., with aggressive local behavior) generally require en bloc resection. Osteotomies of the vertebral body in more than 1 plane may avoid critical structures, preserve nerve functions, and reduce the volume of healthy bone resected. Here, our objective was to report how we planned and performed navigated multiplanar osteotomies for en bloc resection of 14 SPBT.

Methods:
We performed a retrospective analysis of 14 patients with malignant or locally aggressive benign SPBT operated on consecutively between 2014 and 2019 utilizing preoperative 3D planning/navigation. Tumors were resected in an en bloc fashion utilizing multiplanar osteotomies. Patients were followed for a minimum of 12 postoperative months.

Results:
Diagnoses included three benign but locally aggressive bone tumors (i.e., all osteoblastomas) and 11 primary sarcomas (i.e., six chordomas and five chondrosarcomas). Eleven tumors involved the sacrum and the other three, the thoracic spine. In 12 patients, the en bloc margins were classified as marginal (<1 cm), and in two patients, as wide (>1 cm). Intraoperative navigation facilitated the performance of 40 osteotomies in 14 patients (median = 2.9, range = 2–6).

Conclusion:
Navigated multiplanar osteotomies increased the precision and safety of en bloc resections for 14 primary spinal bone tumors SPBT that included 11 malignant and three benign/locally aggressive lesions.
APPLICATION OF A BREEDING SCHEME WITH A WEAKENED EFFECT OF INBREEDING TO RESTORE THE RESOURCES OF DARK EUROPEAN BEES (APIS MELLIFERA MELLIFERA L.)
Authors: Ткачева И.С. , Чугреев М.К. 
Published: February 2022

В процессе эволюции сформировалось богатое разнообразие форм медоносных пчел. Темные европейские пчелы метизированы южными на большей части их ареала в Российской Федерации и представляют собой помеси, происхождение которых установить невозможно. [1,2,3] Для сохранения ресурсов темных европейских пчел требуется незамедлительно приступить к их восстановлению и организации массовой репродукции племенного материала. В данной статье представлены результаты этой работы.
In the process of evolution, a rich variety of forms of honeybees has been formed. Dark European bees are southern in most of their range in the Russian Federation and are hybrids whose origin cannot be determined. [1,2,3] To preserve the resources of dark European bees, it is necessary to immediately begin their restoration and organize mass reproduction of breeding material. This article presents the results of this work.
RESEARCH AND DEVELOPMENT OF CRITERIA FOR THE APPLICABILITY OF MULTISTAGE HYDRAULIC FRACTURING IN THE CONDITIONS OF THE GROZNY OIL REGION
Authors: Халадов А.Ш. , Алиев И.И. , Газабиева З.Х. , Авторханов И.Р. , Мусханов В.А. , Емельяненко А.В. 
Published: February 2022

Гидравлический разрыв пласта (ГРП) является одним из наиболее эффективных методов повышения производительности нагнетательных, нефтяных и газовых скважин, вскрывающих такие пласты. В настоящее время около трети запасов углеводородов можно извлечь только с использованием этой технологии.Исследования и практика применения ГРП показывают, что эффект от проведения гидроразрыва неодинаково проявляется в работе отдельных скважин, поэтому необходимо рассматривать не только прирост дебита каждой скважины вследствие гидроразрыва, но и влияние их интерференции, неоднородности пласта, энергетических возможностей объекта и других факторов. Выбор скважин для обработок, оптимизация параметров трещин и оценка эффективности ГРП должны осуществляться не бессистемно, а на основе детального изучения гидродинамики процесса разработки пласта или месторождения в целом с целью обеспечения баланса между фильтрационными характеристиками пласта и трещины.
Hydraulic fracturing (hydraulic fracturing) is one of the most effective methods of increasing the productivity of injection, oil and gas wells that penetrate such formations. Currently, about a third of hydrocarbon reserves can be recovered only using this technology.Research and practice of hydraulic fracturing show that the effect of hydraulic fracturing is differently manifested in the operation of individual wells, therefore, it is necessary to consider not only the increase in the flow rate of each well due to hydraulic fracturing, but also the influence of their interference, reservoir heterogeneity, energy capabilities of the object and other factors.Selection of wells for treatments, optimization of fracture parameters and assessment of hydraulic fracturing efficiency should not be carried out haphazardly, but on the basis of a detailed study of the hydrodynamics of the formation process or the field as a whole in order to ensure a balance between the filtration characteristics of the formation and the fracture.
CULTURAL TRAUMA AND THE CONTEMPORARY WORLD
Authors: Костров Геннадий Леонидович 
Published: February 2022

Статья посвящена проблеме формирования культурной травмы в эпоху постмодерна. Дан анализ трудностей, возникающих при таком формировании: исчезновение сакрального, разрушение метанарративов, традиционного социального пространства и времени, привычных моральным норм, недоверие к нормативному Разуму, рост индивидуализма и эгоцентризма, хаоса и неопределенности, отсутствие прочных связей между поколениями, чувства вины и ответственности за деяния предков, стремление жить «здесь и сейчас» и пр. Выявлены особенности функционирования нарративного фетишизма в современной России, выражающегося в борьбе с «фальсификациями истории».
The article is aimed at the analysis of the problem of the formation of cultural trauma in the postmodern era. Uncovering the essence of cultural trauma formation, its main properties are studied: the disappearance of the sacred, the destruction of metanarratives, traditional social space and time, habitual moral norms, distrust of normative Reason, the growth of individualism and egocentrism, chaos and uncertainty, the lack of strong ties between generations, feelings of guilt and responsibility for the deeds of ancestors, the desire to live «here and now», etc. The peculiarities of the functioning of narrative fetishism in contemporary Russia, expressed in the fight against «falsifications of history», are revealed.
POLITICAL REPRESENTATION AND REPRESENTATION POLICIES IN PUBLIC ONLINE NETWORK DISCOURSE (BASED ON THE MATERIALS OF THE NETWORK RESOURCES OF YOUNG DEPUTIES OF REGIONAL PARLIAMENTS OF THE RUSSIAN FEDERATION): SOCIO-PHILOSOPHICAL ANALYSIS
Authors: Козлова Наталия Николаевна , Рассадин Сергей Валентинович 
Published: February 2022

Анализируется политическая репрезентация и политики репрезентации в публичном сетевом онлайн-дискурсе в контексте функционирования представительной демократии. Выявляются две позиции в понимании политического представительства - классический и постмодернистский. Источником исследования являются материалы сетевых ресурсов молодых депутатов региональных легислатур РФ (ВКонтакте, Facebook, Instagram) 2016-2021 гг. Авторы пришли к выводу, что политическая репрезентация является одним из существенных элементов конструирования политической коммуникации между депутатами и избирателями, в основе которых лежит договорной характер. В процессе анализа были выявлены индивидуальные, коллективные, институциональные типы политического представительства. В рамках политической репрезентации политиков эксплицируются гендерная, региональная, национальная, религиозная специфики. Авторы отмечают, что политическая репрезентация молодых депутатов в сетевом онлайн-пространстве актуализирует политическое представительство и интенсифицирует связи между депутатами и избирателями, расширяя поле таких демократических практик, как коммуникации, делиберации, партиципации.
The article analyzes political representation and representation policies in the public online network discourse in the context of the functioning of representative democracy. Two positions in the understanding of political representation are revealed - classical and postmodern. Facebook Instagram, VKontakte, Instagram, 2016-2021, the source of the research is the materials of the network resources of young deputies of the regional legislatures of the Russian Federation. The authors came to the conclusion that political representation is one of the essential elements of the construction of political communication between deputies and voters, which are based on a contractual nature. In the course of the analysis, individual, collective, and institutional types of political representation were identified. Within the framework of the political representation of politicians, gender, regional, national, and religious specifics are explicated. The authors note that the political representation of young deputies in the online network space actualizes political representation and intensifies ties between deputies and voters, expanding the field of such democratic practices as communication, de liberation, and participation.
Pengembangan Media Berbasis Android dengan Fitur Augemented Reality Menggunakan Pendekatan Etnomatematika Materi Bangun Ruang Sisi Datar Di SMP
Authors: Fauzi Anwar , Buchori Achmad , Wulandari Dewi 
Published: February 2022

Pemanfaatan teknologi android dalam bidang pendidikan dimana selama ini hanya dimanfaatkan sebagai sarana komunikasi, atau sekedar hiburan. Oleh karenanya peneliti melakukan peneltian yang bertujuan mengembangkan media pembelajaran berbasis android menggunakan Augmented Reality dengan pendekatan etnomatematika pada materi bangun ruang sisi datar yang layak digunakan dan mengetahui hasil belajar siswa. Metode yang digunakan yaitu Prosedural yang terdiri dari 7 tahap yaitu Potensi Masalah, Pengungumpulan Data, Desain Produk, Revisi Produk, Ujicoba Produk, Revisi Produk. Analisis data dilakukan dengan uji normalitas, homogenenitas, uji t dan uji ketuntasan belajar. Hasil dari penelitian ini dapat disimpulkan bahwa (1) presentase validasi ahli media sebesar 86,67%, ahli materi 71,4% dan ahli desain pembelajaran 80% dengan kriteria masing-masing baik. (2) hasil uji kepraktisan berdasarkan respon siswa diperoleh presentase sebesar 89,06 % dengan kategori sangat baik. (3) data dari lapangan menunjukan bahwa hasil belajar siswa yang memperoleh media pembelajaran berbasis android menggunakan Augmented Reality dengan pendekatan etnomatmatika lebih baik di banding dengan siswa yang menggunakan pembelajaran dengan metode ceramah (pembelajaran konvensional).
Bioecological characteristics and importance of feed in xerophyts in the memorial desert plant of the Caspian coast
Authors: Huseynova Humira Zafar 
Published: February 2022

In order to effectively use the natural ecosystem, the phytocenological structure of the region's vegetation was studied by conducting geobotanical research on the Caspian coast (in the territory of the Republic of Azerbaijan). Taxonomy and ecological-geobotanical map have been compiled. Morphological and ecological features of the species dominating the desert and semi-desert plant groups of the area were studied, as well as their phytocenological classification was developed at the level of type, formation and associations.
The modern phytocenological classification of the studied vegetation not only protects the biodiversity of the area, but also provides a basis for its efficient use and protection. Taking into account the relief of the area and the diversity of soil and climatic conditions, it was determined by the phytocenological classification of vegetation that phytocenoses belonging to semi-desert, halophytic and psammophytic desert types are widespread in the vegetation of the Caspian coast.
A new classification of Caspian coastal vegetation has been prepared with reference to our research and studies. According to this guideline and methodology, the classification of desert and semi-desert vegetation is based on eco-phytocenological principles, provided that the life forms of dominant and subdominant species, as well as the systematic taxonomic formations are named according to species and genera, as reflected in the descriptions recorded during field research.
Thus, based on our geobotanical research and chamber studies, the modern classification of vegetation of the Caspian coast revealed that the plant species belonging to xerophytes in the natural phytocenoses of the area are Chenopodiaceae Vent., Asteraceae Dumort. and Poaceae Barnhart. are represented in the chapter.
Ecologization of grain production technology in crop rotations of the droughty steppe of the Lower Volga region
Authors: Azizov Zakiulla Mtiullovich , Arkhipov Vladimir Viktorovich , Imashev Ildar Garifullovich 
Published: February 2022

The analysis of the influence of species and the fullness of crop rotations on the ecologization of grain production is given. The most ecologically clean crop rotation is a 2-field grain-fallow: a fallow of black winter wheat. Its productivity and efficiency are slightly inferior to crop rotations, where, in addition to winter wheat, there are spring early and late grain crops. The role of black fallow as a method of preserving moisture, accumulating nutrients, and cleaning the soil from weeds, pathogens, and pests is revealed. The role of black fallow as a method of preserving moisture, accumulating food elements, cleansing the soil from weeds, pathogens diseases and vermins is revealed. It has been established that the advantage of the fallow predecessor in increasing the productivity and technological properties of winter wheat grain in different types of crop rotations is due to the optimization of the elements of soil fertility and the phytosanitary state of agrophytocenosis. Reducing the length of rotation of grain-fallow crop rotations to two or three fields can significantly reduce weediness of crops and abandon the use of herbicides. An increase in the specific gravity weight of black fallow in crop rotations up to 25% makes it possible to increase its efficiency in clearing fields from weeds of the first two fields, reducing the volume of herbicide application by 75%. Thanks to 2, 3-field grain-fallow crop rotations, it is possible to obtain products without the use of mineral fertilizers, chemical plant protection agents, especially against weeds, thereby improving the ecological situation of the environment.
The influence of the protectant and mineral fertilizers on the contamination of crops and the disease infestation of hemp sowing plants
Authors: Pluzhnikova Irina Ivanovna , Kriushin Nikolay Viktorovich , Bakulova Irina Vladimirovna 
Published: February 2022

The research was conducted during 2017-2020 at the experimental field of the Federal Research Center for Bast Fiber Crops the Penza region. The results of laboratory and field experiments to determine the effectiveness of seed treatment with TMTD, VSK and Izagri Force fertilizer, as well as spraying with Izagri Phosphorus fertilizer of plants of monoecious hemp of the Nadezhda variety are shown. The studied factors influenced the seed contamination and the prevalence of root rot, and later on the infestation of crops and the intensity of leaf spot development. Seed treatment with TMTD, VSK (5.0 and 2.5 l/t) suppressed 95.3 and 85.5 % of seed infection, reduced the prevalence of root rot by 4.2 and 1.8 %, and the intensity of leaf spot development by 1.3 and 0.6 % compared to the control. A significant effect of the studied factor on the reduction of the air-dry mass of weeds in the phase of 6-7 pairs of leaves was proved by 31.9 and 26.4 % compared to the control. When using Izagri Force fertilizer for seed treatment (1.0 and 0.5 l / t), the biological efficiency of etching was 47.2 and 37.0 %. The prevalence of root rot decreased by 1.8 and 5.4 %, respectively, and the intensity of leaf blotches decreased by 1.6 and 1.1 % compared to the control. The application of the fertilizer allowed to reduce the air-dry mass of weeds in the phase of mass maturation of hemp seeds by 4.8 and 6.5 % compared to the control. Foliar top dressing with Izagri Phosphorus fertilizer for plant vegetation (3.0 l / ha) provided a reduction in the air-dry mass of weeds on average during the growing season by 17.4 % compared to untreated plants. The combination of all the studied factors when using TMTD, VSK and Izagri Force preparations in the consumption rates of 5.0 and 1.0 l / t against the background of foliar top dressing led to the suppression of weed vegetation, respectively, by 48.1 %.
Assessment and forecast of the humus state of irrigated dark chestnut soils in the Trans-Volga region
Authors: Yanyuk Vyacheslav Mikhailovich , Romanova Lyubov Gennadievna , Tarasenko Petr Vladimirovich 
Published: February 2022

One of the problematic aspects of the fertility reproduction of irrigated soils is the lack of verified models and parameters necessary to predict the humus state. The formation of the balance of organic matter in irrigated soils is largely predetermined not only by the specificity of ecological and landscape factors of soil formation, but also by the conditions of economic use: the composition of the crop rotation, the level of production intensification, which determines the productivity of crops, ways of using by-products (grain straw) and doses of organic fertilizers. Based on the results of 18 years of observations in the production experience of the fertility parameters of dark chestnut soils, the balance linear-kinetic model of the humus state was verified. The author's approach to forecasting the humus balance of the arable layer of soils is proposed to assess the effect of the structure and productivity of the crop rotation of irrigated arable land. A quantitative assessment of dehumification processes of irrigated soils is given, due to changes in the structure of the use of arable land, where vegetable crops are predominant.
Results of testing of promising potato hybrids in the conditions of the Central region of the non-chernozem zone of Russia
Authors: Chehalkova Larisa Konstantinovna , Konova Aminat Msostovna , Gavrilova Anna Yurievna 
Published: February 2022

The aim of the work was to study 10 potato hybrids of the joint selection of the Russian Potato Research Center and the Federal Research Center for Bast Fiber Crops in terms of yield, marketability, starch content and taste to determine the adaptive potential in the conditions of the Central Region of Russia. The studies were conducted in 2017-2019 in the breeding nursery of the main test on sod-podzolic medium loamy soil in the conditions of the Central Region. The highest yield of 42.1 - 52.0 t/ha was characterized by hybrids of the middle-early maturity group. However, this group also had the highest coefficient of variation for the studied trait, 26.8-31.6%, which indicates an unstable yield of hybrids of this group of ripeness in the studied years. The yield of the middle-late maturity group hybrids was 29.2-45.0 t/ha with the lowest coefficient of variation of 1.9 - 4.4% in the BP808 x 88.34/14 and Prince x Russian Souvenir hybrids, respectively. This indicates a slight variation in the yield of the studied hybrids. The greatest number of tubers 10.6 - 12.3 pcs./bush was observed in hybrids of the middle-early group of ripeness Inessa x 2651-8. In the middle-maturing group, the maximum number of tubers under the bush of 14.8-16.8 pcs./bush was observed in the hybrid 2387-26 x Aurora. The marketability of tubers in general in most hybrids was in the range of 87.7-96.9%, the coefficient of variation was low 0.1 - 3.8%, which indicates a stable marketability in the studied years. The average weight of a commercial tuber of hybrids varied in the range of 83.5 - 109.2 g. The starch content in most of the studied hybrids was within the average values and amounted to 13.9-17.7%. For three years, the percentage of starch content in all hybrids was stable, which is explained by a low coefficient of variation of 0.6 - 5.9%. The taste qualities of the hybrids were good and varied within 4.4 - 4.7 points with a low coefficient of variation (2.1-4.5%).
A review of the literature on the impact of acute and chronic stress upon brain waves
Authors: Noushad Shamoon , Ahmed Sadaf , Ansari Basit , Saleem Yusra , Batool S. Farah , Batool Syeda Farah 
Published: February 2022

Background: The biological responses associated with stress originate in the brain and involve different physiological and physical effects. The direct effect of stress on cortical responses can be visualized by recording the brain’s electrical waves using an encephalograph. These waves are recorded by means of an electroencephalogram (EEG). EEG is the most commonly used neuroimaging technique to study the patterns of brainwaves and functioning of the brain. It also measures the variation of the electric field produced by neuronal activity a millisecond at a time. To systematically analyze published studies on the difference between brain wave patterns in terms of their frequencies among subjects with acute stress, chronic stress, and normal individuals.
Methodology: The data from published studies was arranged quantitatively and qualitatively by producing a planned summary measure. Studies that focused on brain wave analysis of the EEG of healthy adult subjects with no history of mental illness or head injury were included in the review. The selected literature included many types of stressors that are acute or chronic, and that affected the neuronal electrical activity. The only electronic database utilized to identify relevant studies was PubMed.
Result: Fifteen studies were included that were based on a variety of acute stressors to observe alterations in brain wave activity between stress-free and stressed states. These studies showed that stressors could be a causative factor to generate fluctuations in neuronal oscillations that also leads to significant psychological, physiological and neurobiological deteriorations to some extent. An additional sixteen studies were included, which showed the effect of chronic stress on the asymmetry of the amplitude in the frequencies of brain waves.
Conclusion: The most common change observed was in the alpha frequency (8-13Hz), followed by changes in beta waves (13-30 Hz) and theta (4-8Hz). Though, there is not always the same resultant pattern of waves explored with even the same type of stressors due to interpersonal differences in response to a stressful situation.