bluuebunny/crossref_metadata_2025_split huggingface dataset:
Itération dirigée vers un point fixe ou un type de point fixe donné
Authors: Ari Richard d' , Richelle Jean , Thomas René 
Published: June 2020

It has long been known that roots of an equation (or a system of equations), can be obtained by first writing the system in the form xn+1 = F(xn), then deriving the recurrence system xn+1 — F(xn) ; these roots are the fixed points of the iteration, i.e. the values x0 such that x0 = F(x0).
However, an iterative process may converge to or diverge from a fixed point x0, depending on the slope of F(x) at this point. Many efficient methods have been derived to promote (or accelerate) the convergence of this type of iterative process. The method described here as "directed iteration" aims to render attractive any chosen type of fixed point from a large domain of initial points. The present paper describes one-variable systems ; a subsequent paper will deal with n-variable systems. In short, we substitute for the original recurrence : [FORMULA] in which A is a positive or a negative number depending on whether the slope of F(x) at the fixed point chosen is itself positive or negative. Convergence is fastest when the value of A equals this slope ; for higher absolute values of A, convergence persists, although it is increasingly slow. More generally, one can write : [FORMULA] in which A is a caricature of the Jacobian matrix of F(x0) and I is the unitary matrix. For n-variable systems, however, it is more convenient to adopt a form closer to the Newton-Raphson recurrence : [FORMULA] in which H(xn) = F(xn) — xn and J is a caricature of the Jacobian matrix of H(x0).
Our algorithm is included (as well as the Newton-Raphson and the Whit-taker algorithms) in a more general formulation given by Isaacson and Keller (1966) ; however, its usefulness in the context described here does not seem to have been considered before. As pointed out to us by C. Mira, a method developped by Giraud (1969) for two variable systems also uses ad hoc matrices which modify the attractiveness of fixed points.
In the search for steady state values of systems of non-linear ordinary differential equations, directed iteration often permits convergence to a chosen steady state (or type of steady state) from a wide range of initial guesses where classical iterations fail to converge or converge from a small interval around the steady state.
Une base sphéroïdale pour les polymères magnétiques II
Authors: Demeur Marcel , Mowlavi Nanmi 
Published: June 2020

Les molécules magnétiques H2 et H3 sont étudiées dans un champ magnétique de 2,35.108T au moyen d'une base d'orbitales sphéroïdales adaptée à de tels champs. Des arguments de symétrie sont utilisés pour accélérer la convergence du calcul variationnel.
Les spectres calculés indiquent que ces molécules magnétiques sont très stables vis-à-vis de leurs dissociations et confirment la stabilité des polymères magnétiques d'hydrogène.
Suicide cellulaire
Authors: Farber Claire Michèle 
Published: June 2020

This work was directly stimulated by Jean Claude Ameisen's, who thinks apoptosis ("cellular suicide") is responsible for CD4+ T cell dysfunction and loss in HIV infection, this apoptosis being induced by antigens "seen" before.
We wanted to know if this work could be reproduced ; and it could, and also if it had clinical relevance (could it be triggered by exposure to recall antigens).
We are currently under the opinion that HIV itself could be a more important contributor of the phenomenon than concurrent vaccines or infections.
This paper also reviews more general considerations on the implications of cellular suicide (in embryogenesis, in the genesis of tumors).
Mission et responsabilité de l'Institut de France, notamment de l'Académie des Beaux-Arts, depuis sa création et en vue du XXIe siècle
Authors: Landowski Marcel 
Published: June 2020

The Fine Arts class of the Académie Royale de Belgique is celebrating its 150th anniversary. The Institut de France has just celebrated its bicentenary. This coincidence serves to remind us that the links between our institutions have been close, not only through the exchanges which link them, but through our associated membership of each other s institutions.
Such events provide the occasion for us to ask ourselves about our role in today s world. Through our independence, through the skills which our companies bring together, and through our desire to be useful to society, we can and we must exercise our responsibilities. It is this sense of responsibility which has underlain the process of discussion which has accompanied the bicentenary of the Institut de France. The Académie des Beaux-Arts also has a part to play in this movement. It does this by continuing to uphold the artistic tradition, by encouraging and protecting the arts, by advising the public authorities, and by defending our heritage - both national and international - when it is threatened. Over and beyond these functions, the Académie s mission includes supporting the spiritual dimension of art, which our modern world of machines and profitabiblity has a tendency to forget.
Simulation of the protein folding process using the local minimum energy and the free solvatation energy yields native-like structures
Authors: Brasseur Robert 
Published: June 2020

Segregation of hydrophobic and hydrophilic domains is central to the formation of biological membranes, lipid bilayers and micelles and is also involved in protein folding. In this paper we introduce a new empirical equation which enables the calculation of the free energy of solvatation for all protein constituents.
The free energy of solvatation consists of two components ; the first derives from interactions between the constituent atoms of the protein, while the second results from interactions between protein and solvent, as expressed by the surface area of protein atoms covered by solvent molecules. The total energy of the macromolecular system is distributed along the torsional axes of the protein.
We propose here that protein folding can be represented as the aggregate of two computational procedures. The first step calculates the initial structure subsequently used in the molecular dynamics approach. For this purpose a local minimum energy procedure defines the most stable secondary structure of each amino acid which occurs during the theoretical conformational transition of the protein from an ideal alpha-helix to an ideal beta-sheet. The second calculation procedure consists of a molecular dynamics approach applied to the torsional axes of the protein, to identify the structure of the protein with a minimal total energy. This " ab initio " method therefore requires no
Reporte de caso: fístula carótido-cavernosa post-traumática en un adolescente
Authors: Mendelewicz Montero Ariel , Chacón González Constanza , Guier Bonilla Luisana 
Published: June 2020

Las FCCs son comunicaciones vasculares entre el sistema arterial carotídeo y el sistema de drenaje venoso cerebral; principalmente el seno cavernoso. A pesar de haber sido de las primeras lesiones vasculares intracerebrales en describirse, su poca ocurrencia dificulta la realización de grandes estudios que estandarice su abordaje y manejo. El objetivo de este caso clínico es describir una FCC diagnosticada en el Hospital México, de la Caja Costarricense de Seguro Social (CCSS) en San José Costa Rica, y de esta forma contribuir a la literatura médico-científica.
Se reporta el caso de un paciente masculino de 17 años víctima de un politrauma, su sintomatología, el abordaje diagnóstico y la intervención terapéutica. A su vez se realiza una revisión del tema que evidencia la unicidad y variabilidad de esta patología, y se concluye que es indispensable la sospecha clínica y pronto manejo para así disminuir su morbilidad.
Upaya Penerapan Metode Pembelajaran Kooperatif Tipe Team Games Tournament untuk Meningkatkan Hasil Belajar Matematika Materi Operasi Bilangan Pecahan Siswa Kelas V SD
Authors: Akhmad Sahip  
Published: June 2020

Metode pembelajaran kooperatif tipe TGT merupakan metode pembelajaran suatu bentuk pembelajaran yang dikemas dengan proses permainan dan menitikberatkan pada keaktifan siswa, dengan menerapkan TGT proses pembelajaran tidak menjadi monoton, siswa lebih aktiv dan bersemangat dalam belajar serta melatih siswa untuk lebih percaya diri. Tujuan penelitian ini adalah untuk meningkatkan hasil belajar siswa kelas V pada pembelajaran matematika melalui menerapkan metode pembelajaran kooperatif tipe team games tournament pada pembelajaran matematika materi operasi bilangan pecahan di kelas V SDN 2 Ubung tahun Pelajaran 2018/2019. Rancangan penelitian yang digunakan dalam penelitian ini adalah penelitian tindakan kelas (PTK). Pada penelitian ini, subyek penelitiannya adalah siswa kelas V, dengan jumlah siswa 28 siswa. Berdasarkan hasil penelitian yang dilakukan oleh peneliti pada penerapan metode pembelajaran kooperatif tipe TGT menunjukan terdapat peningkatan pada setiap siklusnya diantaranya adalah pada tahap prasiklus dari 28 siswa kelas V siswa yang tidak mencapai KKM 75 sebanyak 19 siswa (68%) sedangkan yang mencapai KKM 75 atau lulus sebanyak 9 siswa (32%) dengan nilai rata-rata sebesar 63.03, sedangkan pada siklus I mengalami peningkatan yakni dari 28 siswa yang lulus atau mencapai KKM 75 sebanyak 16 siswa (57%), sedangkan yang tidak lulus sebanyak 12 siswa (43%) dengan nilai rata-rata sebesar 68.75, Selanjutnya pada siklus II dengan jumlah siswa 28 orang siswa, yang lulus sebanyak 25 siswa (89%) sedangkan yang tidak lulus sebanyak 3 orang siswa (11%) dengan nilai rata-rata sebesar 76.96. Dengan demikian dapat disimpulkan bahwa melalui penerapan metode pembelajaran Kooperatif tipe Teams Game Tournament (TGT) dapat meningkatkan hasil belajar Matematika pada materi Operasi Bilangan Pecahan siswa kelas V SDN 2 Ubung tahun pelajaran 2018/2019.
REVIEW OF DESIGN AND FORECASTING THE QUALITY OF SPINDLE ASSEMBLIES WITH GASSTATIC SUPPORTS
Authors: Легаев Владимир Павлович , Симаков Дмитрий Вадимович 
Published: June 2020

Оптимальное проектирование сложных технических объектов невозможно без прогнозирования характеристик их работоспособности. Применяемые при этом методы многокритериальной оптимизации напрямую используют в качестве критериев выходные характеристики динамического качества, поэтому задача прогнозирования последних, в конечном счете, определяет качество проектирования.
The optimal design of complex technical objects is impossible without predicting the characteristics of their performance. The multicriteria optimization methods used in this case directly use the output characteristics of dynamic quality as criteria, therefore, the task of forecasting the latter, ultimately, determines the quality of the design.
ETHICAL ASPECT OF INFORMATION SECURITY PROBLEM
Authors: Фотиева Ирина Валерьевна 
Published: June 2020

В статье выделяются два подхода к проблеме информационной безопасности: защита информации от человека и защита человека от неблагоприятной информации. Показано, что вторая проблема не решается техническими и правовыми мерами; предлагаемое сегодня развитие медиакомпетентности также решает ее лишь частично; необходим комплексный анализ базовых этических принципов и методов формирования этически зрелой личности.
Two approaches to the problem of information security are distinguished in the article: protection of information from a person and protection of a person from adverse information. It is shown that the second problem is not solved by technical and legal measures; the development of media competence proposed today also solves it only partially; a comprehensive analysis of the basic ethical principles and methods of forming an ethically mature personality is needed.
INFLUENCE OF EMISSIONS OF VEHICLE TRANSPORT ON SEED PROPERTY OF PINE ORDINARY
Authors: Васильев Денис Владимирович 
Published: June 2020

Исследовано качество семенного потомства сосновых насаждений, произрастающих в условиях аэротехногенного загрязнения автомобильным транспортом на трассе M3.
The quality of seed offspring of pine plantations growing under the conditions of aerotechnogenic pollution by motor transport on the M3 highway was studied.
DIGITAL TRANSFORMATION OF THE BANKING IN RUSSIA
Authors: Кругляк Людмила Ивановна , Панов Юрий Сергеевич , Микулин Тамерлан Баирович 
Published: June 2020

Скачок в развитии технологий ознаменовал эпоху цифровой трансфор-мации всех секторов и отраслей экономики. Все больше компании начали осваивать цифровизацию как новый метод конкурентной борьбы за долю на рынке товаров и услуг.
The leap in technology development marked the era of digital transformation of all sectors and industries of the economy. More and more companies have begun to adopt digitalization as a new method of competing for market share in goods and services.
APPLICATION OF HYDROCYCLONS IN THE INDUSTRY
Authors: Валеев Сергей Ильдусович 
Published: June 2020

Исследованы перспективы развития разделения суспензий и эмульсий в гидроциклонах. Рассмотрены новые разработки в этой области, а также представлены собственные.
We studied the prospects of development of the division of suspensions and emulsions in hydrocyclones. Some new developments in this area and presented their own.
EXPERIENCE OF EXTRACURRICULAR WORK IN RUSSIAN AS A FOREIGN LANGUAGE IN A NON-LINGUISTIC UNIVERSITY
Authors: Зорина Виктория Владимировна 
Published: June 2020

Статья посвящена актуальной проблеме организации внеаудиторной работы по русскому языку как иностранному в неязыковом вузе. Внеаудиторная работа, как показывает анализ публикаций и практика преподавания, обладает значимым обучающим, развивающим и воспитывающим потенциалом. Представлен опыт участия слушателей курсов подготовки иностранных специалистов СибЮИ МВД России в фонетическом конкурсе (организатор СФУ) и внутривузовской Олимпиаде по русскому языку и культуре речи.
The article is devoted to the actual problem of organizing extracurricular work on Russian as a foreign language in a non-linguistic University. Extracurricular work, as shown by the analysis of publications and teaching practice, has significant teaching, developing and educating potential. The experience of participation of the trainees of training of foreign specialists Sibui of the MIA of Russia in phonetic competition (hosted by SFU) and intrahigh Olympiad on the Russian language and speech culture.
INTERCULTURAL COMMUNICATION AS A GROWTH FACTOR FOR A SPECIALIST
Authors: Айсханова Екатерина Султановна 
Published: June 2020

В работе рассматривается вопрос о межкультурной коммуникации как факторе роста специалиста. Автор отмечает, что рост профессиональной компетентности напрямую зависит от межкультурной коммуникации, которая способствует, в сою очередь, формированию его ценностного становления.
The issue of cross-cultural communication as a growth factor of a specialist is considered in the work. The author notes that the growth of professional competence directly depends on cross-cultural communication, which contributes, in turn, to the formation of its value formation.
SPECIALIZED FOOD PRODUCTS FOR ATHLETES ' NUTRITION: QUALITY AND SAFETY ISSUES DURING SANITARY AND EPIDEMIOLOGICAL EXAMINATION
Authors: Мустафина Оксана Константиновна , Трушина Элеонора Николаевна 
Published: June 2020

В данной статье рассматриваются вопросы применения и регистрации специализированных пищевых продуктов для питания спортсменов.
This article discusses the use and registration of specialized foods for athletes.
THE MONTE CARLO METHOD AS A RISK ASSESSMENT TOOL IN THE FORMATION OF A STOCK PORTFOLIO IN A CRISIS SITUATION
Authors: Винниченко Екатерина Андреевна , Пупенцова Светлана Валентиновна 
Published: June 2020

В работе разработан алгоритм применения метода имитационного моделирования при оценке эффективности финансовых инвестиций на примере оценки корпоративных облигаций в кризисной ситуации. Авторы рассчитали доходность к погашению корпоративных облигаций в период кризиса 2020 года и подготовили рекомендации по выбору наиболее привлекательных ценных бумаг для инвестора.
In this paper, we have developed an algorithm for applying the simulation method to evaluate the effectiveness of financial investments on the example of evaluating corporate bonds in a crisis situation. The authors calculated the yield to maturity of corporate bonds during the crisis in 2020 and prepared recommendations for choosing the most attractive securities for investors.
ELECTRONIC EDUCATIONAL SPACE: PROSPECT OF DEVELOPMENT
Authors: Ярычев Муса Увайсович 
Published: June 2020

В статье рассматривается роль цифровых технологий в образовательной среде. Образование перешло на новый уровень своего развития. Методы, используемые на занятиях с привлечением средств мультимедиа, в большей степени близки и понятны учащимся и, как следствие, повышают их заинтересованность.
The article discusses the role of digital technologies in the educational environment. education has moved to a new level of development. Methods used in classes involving multimedia are more familiar and understandable to students and, as a result, increase their interest.
METHODS OF PEDAGOGICAL WORK WITH «SPECIAL» CHILDREN
Authors: Ярычев Муса Увайсович 
Published: June 2020

В статье рассматривается особенности коррекционно-развивающей работы по формированию коммуникативных умений у детей с нарушениями умственного развития на уроках социально-бытового ориентирования. Однако для детей с нарушениями умственного развития характерно отсутствие потребности в налаживании отношений с другими людьми. Важными словесными методами обучения на уроках, являются рассказ, беседа, объяснение, работа с печатными текстами. Все они имеют непосредственное отношение к речевому развитию учащихся с интеллектуальными нарушениями.
The article discusses the features of correctional and developmental work on the formation of communicative skills in children with intellectual disabilities in the lessons of social orientation. However, children with intellectual disabilities are characterized by a lack of need to establish relationships with other people. Important verbal methods of teaching in the classroom are story, conversation, explanation, and working with printed texts. All of them are directly related to the speech development of students with intellectual disabilities.
KONTRIBUSI PENERIMAAN USAHATANI KACANG PANJANG DI LAHAN SAWAH TADAH HUJAN PADA BERBAGAI POLA TANAM (Kasus di Kecamatan Pondok Kelapa, Kabupaten Bengkulu Tengah)
Authors: Putra Wawan Eka , Sudarmansyah Sudarmansyah , Ishak Andi 
Published: June 2020

Long bean is an important crop for vegetable farmers on rainfed ricefield in Pondok Kelapa District, Bengkulu Tengah Regency because its cultivated in various cropping patterns. This study aims to analyze the contribution of long bean farming revenue in various vegetable cropping patterns. The study was conducted from May to August 2019 through a census of 50 vegetable farmers in the villages of Srikuncoro and Pekik Nyaring, Pondok Kelapa District. Data collected in the form of production costs and sale of the yields. The contribution of long bean farming is analyzed descriptively by calculating the revenue percentage in each cropping pattern. The results showed that there were six vegetable planting patterns practiced by farmers in Pondok Kelapa District, namely: (1) cucumber - pariah - long bean, (2) cucumber - gambas - long bean, (3) cucumber - long bean - long bean, (4) long bean - pariah - long bean, (5) long bean - gambas - long bean, and (6) long bean - long bean – pulled kale – pulled kale. Farmers always plant long bean in all of the cropping patterns. The biggest farming benefit is obtained from cropping pattern 1 which is Rp. 120,244,000/hectare with an R/C ratio of 1.95, while the smallest profit on a cropping pattern of 6 with an R/C ratio of 1.55. The planting pattern of cucumbers - long beans - long beans nominally gives the largest farm receipts from all cropping patterns namely Rp. 120,000,000/hectare, meanwhile, the long-bean-long-bean-spinach-pull-out cropping pattern is a cropping pattern which contributes the largest revenue from long-bean farming to 64.00%.
Keywords : long bean, planting pattern, contribution, revenue.
Pengaruh Pengalaman Prakerin, Konsep Diri Dan Komitmen Siswa Terhadap Kesiapan Kerja Bidang Otomotif Sekolah Menengah Kejuruan Di Kediri
Authors: Hilmi Mohammad Arifin 
Published: June 2020

Sekolah Menengah Kejuruan merupakan merupakan salah satu bentukpendidikan yang memberi bekal kepada Siswa dengan berbagai kompetensi untuk mempersiapkan diri memasuki lapangan kerja atau untuk melanjutkan ke jenjang pendidikan yang lebih tinggi. Pengalaman praktik kerja industri suatu program latihan yang diselenggarakan di lapangan atau di luar sekolah, dalam rangkaian kegiatan pembelajaran, sebagai bagian integral program latihan pedagogik, kompetensi profesional, kompetensi sosial dan kompetensi kepribadian.
Kesiapan kerja siswa SMK adalah suatu kemampuan yang harus dimiliki oleh para siswa untuk dapat langsung bekerja setamat sekolah tanpa memerlukan masa penyesuaian diri yang memakan waktu dalam rangka penciptaan suatu produk atau penambahan nilai suatu sumber daya dengan hasil yang maksimal sesuai dengan target yang telah ditetapkan. Kemampuan tersebut meliputi pengetahuan, keterampilan dan sikap kerja sesuai dengan standar yang ditetapkan atau biasa disebut dengan kompetensi kerja.
Penelitian yang dilaksanakan ini merupakan jenis penelitian expost facto. Tujuan penelitian ini adalah untuk mengetahui: (1) pengaruh pengalaman prakerin dengan konsep diri, (2) pengaruh pengalaman prakerin dengan komitmen siswa, (3) pengaruh pengalaman prakerin dengan kesiapan kerja, (4) pengaruh konsep diri dengan komitmen siswa, (5) pengaruh konsep diri dengan kesiapan kerja, (6) pengaruh komitmen siswa dengan kesiapan kerja, (7) pengaruh pengalaman prakerin, konsep diri, komitmen siswa dengan kesiapan kerja populasi pada penelitian ini adalah siswa teknik kendaraan ringan di Kediri yang berjumlah 90 siswa. Semua siswa dalam populasi menjadi responden pengambilan data. Pengumpulan data variabel pengalaman prakerin (X1), konsep diri (X2), komitmen siswa (X3), kesiapan kerja (Y), menggunakan lembar angket. Data penelitian dianalisis dengan analisis jalur.
Hasil penelitian: (1) terdapat pengaruh pengalaman prakerin dengan kesiapan kerja dengan presentase pengaruh terhadap kesiapan kerja 41,80 persen, (2) terdapat pengaruh konsep diri dengan kesiapan kerja dengan presentase pengaruh konsep diri terhadap kesiapan kerja 47,65 persen. (3) terdapat pengaruh komitmen siswa dengan kesiapan kerja dengan presentase pengaruh komitmen siswa terhadap kesiapan kerja 10,55 persen. (4) variabel konsep diri merupakan variabel yang paling berpengaruh pada kesiapan kerja dengan presentase tertinggi yaitu 46,65 persen.
The Big Sibling of AU Mic: A Cold Dust-rich Debris Disk around CP−72 2713 in the β Pic Moving Group
Authors: Moór Attila , Pawellek Nicole , Ábrahám Péter , Kóspál Ágnes , Vida Krisztián , Pál András , Dutrey Anne , Folco Emmanuel Di , Hughes A. Meredith , Kral Quentin , Pascucci Ilaria 
Published: June 2020

Abstract
Analyzing Spitzer and Herschel archival measurements we identified a debris disk around the young K7/M0 star CP−72 2713. The system belongs to the 24 Myr old β Pic moving group. Our new 1.33 mm continuum observation, obtained with the Atacama Large Millimeter/submillimeter Array 7 m array, revealed an extended dust disk with a peak radius of 140 au, probably tracing the location of the planetesimal belt in the system. The disk is outstandingly large compared to known spatially resolved debris disks and protoplanetary disks around stars of comparable masses. The dynamical excitation of the belt at this radius is found to be reconcilable with planetary stirring, while self-stirring by large planetesimals embedded in the belt can work only if these bodies form very rapidly, e.g., via pebble concentration. By analyzing the spectral energy distribution, we derived a characteristic dust temperature of 43 K and a fractional luminosity of 1.1 × 10−3. The latter value is prominently high; we know of only four other similarly dust-rich Kuiper Belt analogs within 40 pc of the Sun.