bluuebunny/crossref_metadata_2025 huggingface dataset:
Atividade lúdica e educativa para higienização das mãos em tempos de pandemia: relato de experiência
Authors: Fernandes de Oliveira Fabiano , Honorato Adaiza Kelly
Published: April 2021

Objective: to describe the experience of a playful activity to reflect on the hand hygiene technique among nursing professionals regarding the care of patients with Coronavirus. Method: this is a study of a professional experience report about an educational activity carried out with 25 professionals who are on the front line of COVID-19. Result: the participants realized the flaws during the hand hygiene procedure and were clarified about the main doubts about the correct technique, friction time, amount of soap to be used, causing their practices to be put to the test. Conclusion: the permanent education is essential to encourage and carry out appropriate techniques, mainly those related to the barriers of exposure to the virus. The increasing in quality of hand hygiene requires investment in continuing education for health professionals and changes in the aspects related to the beliefs and culture of these professionals.
Taniec dla teatru przyszłości: Czytając Isadorę Duncan
Authors: Kwaśniewska Monika
Published: April 2021

Autorka analizuje idee Isadory Duncan wyrażone w odczycie Taniec przyszłości na tle manifestów i koncepcji Adolpha Appii, Edwarda Gordona Craiga oraz Konstantina Stanisławskiego, z którymi łączyły ją obszary zainteresowań lub/i relacje osobiste. Marginalizacja Duncan w historii teatru jest interpretowana w artykule jako wynik patriarchalnego i opartego na kulcie mistrzów charakteru teatru XX i początku XXI wieku. Powrót do idei Duncan to zatem krok w kierunku rewizji narracji historycznych oraz spekulatywnego poszerzenia możliwości wyboru tradycji. Odwołując się do teorii feministycznych, krytyki instytucjonalnej oraz studiów o niepełnosprawności, autorka wskazuje na progresywne elementy koncepcji Duncan, które korespondują z nowatorskimi trendami we współczesnych praktykach teatralnych i performatywnych.
Підвищення ефективності передстартової системи термостатування повітря космічних апаратів.
Authors: Булавка С.
Published: April 2021

У роботі було запропоновано модифіковані структурні схеми передстартової системи термостатування повітря космічних апаратів для підвищення її ефективності та виконано порівняльну оцінку. Теоретичні результати, отримані для передстартової системи термостатування повітря космічних апаратів показали, що розроблені структурні схеми мають більшу ефективність роботи у порівнянні з існуючою, оскільки відхилення значень розподілення градієнту температур за довжиною по осі при температурі зовнішнього середовища в 20 і 30ºС не перевищує 16,7%. Отримані результати вказують на доцільність в застосуванні запропонованої модифікованої схеми передстартової системи термостатування повітря з підпірним дроселем та фільтрами грубого і тонкого очищення.
Особливості та функціональні можливості програмного комплексу Рspice
Authors: Заяць В. , Маєвський Я. , Заяць М.
Published: April 2021

В роботі вдзначені особливості вхідної мови даного програмного комплексу, способи опису речень вхідної мови, побудови власних моделей досліджуваних об’єктів та використання моделей, заданих у відкритій бібліотеці даного коиплексу. Описано можливі режими роботи комплексу та способи їх ефективного використання. Отриримані результати дозволяють проводити ефективне схемо технічне моделювання та аналіз як відомих об’єктів, так і новостворюваних, забезпечуючи при цьому економію матеріальних та людських ресурсів
Імпульсно-фазове керування в електротехнічних пристроях.
Authors: Лишук В. , Євсюк М. , Селепина Й. , Мороз С. , Літковець С.
Published: April 2021

У статті запропонований імпульсно-фазовий спосіб регулювання напруги в електротехнічних пристроях. Запропонована синхронна система імпульсно-фазового керування з вертикальним керуванням дає змогу підвищити швидкодію при регулюванні напруги в електротехнічних пристроях та формувати необхідні кути керування тиристорами. Запропонований генератор пилкоподібної напруги як опорної щодо формування імпульсів дає змогу добитися лінійності регулювальних характеристик вентильних перетворювачів.
Виявлення мережевих атак за допомогою Ентропії.
Authors: Соняк С.
Published: April 2021

Проблема розподіленого відмови в обслуговуванні (DDoS) - це поширена проблема сьогодні. Існує безліч способів виявлення цього типу атак. В статті розглядається метод Ентропії
Метод фільтрації біометричних параметрів на основі вейвлет-перетворень.
Authors: Терейковська Л.
Published: April 2021

Стаття присвячена проблемі вдосконалення засобів прихованого моніторингу особи та емоцій операторів інформаційно-управляючих систем на основі біометричних параметрів, що співвідносяться з двовимірними зображеннями та характеризуються за допомогою геометричних показників. З’ясовано, що труднощі розробки таких засобів багато в чому пов’язані з очищенням підконтрольних зображень від типових нестаціонарних завад, викликаних нерівномірністю освітлення та сторонніми предметами, що заважають відеореєстрації. Запропоновано нівелювати означені труднощі за рахунок застосування технології вейвлет-перетворень, котра використовується для фільтрації зображень шляхом об’єднання  декількох однакових, але різним чином зашумлених бінарних, півтонових та кольорових зображень. Розроблено метод фільтрації, який за рахунок застосування запропонованого підходу до застосування вейвлет-перетворень відеоряду послідовно зареєстрованих біометричних параметрів, дозволяє з задовільною якістю реалізовувати їх очищення від типових нестаціонарних завад. Проведені експериментальні дослідження показали доцільність застосування розробленого методу для фільтрації зображень обличчя та радужної оболонки ока операторів інформаційно-управляючих систем.
Розробка інтерактивної карти з використанням технології SPA.
Authors: Трофімук A. , Булатецька Л. , Павленко Ю. , Гришанович Т.
Published: April 2021

В роботі розглянуто основні питання, що стосуються процесу розробки та проектування інформаційної системи із використанням технології Single Page Application. Дана технологія надає можливість зміни контенту без перезавантаження сторінки, що забезпечує користувачам миттєвий зворотній зв’язок. Розроблено веб-сайт з візуально відображеною картою місцевості, на якій користувач має можливість створювати маркери, які містять детальну інформацію про дане місцезнаходження. При розробці використані HTML, CSS, JavaScript.
Cпосіб трансляції конкатенації рядкових виразів мови TypeScript у проміжну мову CIL платформи .NET.
Authors: Іваненко A. , Марченко O.
Published: April 2021

У статті запропоновано спосіб, який надає можливість генерації ефективніших інструкцій CIL для конкатенації рядкових виразів мови програмування TypeScript. Запропонований спосіб базується на виклику потрібного варіанту перевантаження вбудованої у платформу .NET функції в залежності від кількості операндів конкатенації. Результатом роботи способу є згенерований код, який показує кращу швидкодію, ніж код, створений існуючим аналогом.
Біометрична ідентифікація засобами Python та Raspberry Pi.
Authors: Костючко С. , Багнюк Н. , Кузьмич O. , Поліщук М. , Кирилюк Л.
Published: April 2021

У даній статті пропонується один з варіантів біометричної ідентифікації, а саме розпізнавання обличь користувачів засобами (одного з найпопулярніших і сучасного) одноплатного комп’ютера Raspberry Pi 4b та з використанням мови програмування Python. Була проведена низка симуляцій та створена база даних користувачів.
Використання Data Mining в інформаційних бібліотечних системах.
Authors: Мороз Б. , Кабак Л. , Ширін A. , Овчаренко С.
Published: April 2021

В даний час для аналізу даних використовуються алгоритми та інструменти для аналізу даних, які називаються Data Mining. Data Mining успішно використовується в різних галузях промисловості. У статті розглядається можливість впровадження цієї технології в бібліотечні системи, оскільки аналіз даних можна використовувати для отримання різних прогнозів. Сучасні технології надходять і до бібліотек. Для запобігання дефіциту книг, та запобігання переповнення бібліотеки застарілими книгами ми можемо використовувати інформаційну систему з функціями аналізу даних з інтеграцією інструментів аналізу даних у системи управління ризиками, які можуть допомогти отримати корисну інформацію з бази даних з метою прийняття рішення про списання книг або переміщення в сховище.
Моніторинг та дослідження мережі на базі Linux-машин.
Authors: Сіваковська O. , Ящук A. , Андрущак І. , Ліщина Н. , Ліщина В.
Published: April 2021

Здійснено аналіз проблематики моніторингу мереж. Обґрунтовано переваги та недоліки наявних UNIX-подібних операційних систем. Означено етапи створення мережі на базі Linux-машин. Розглянуто основні компоненти для побудови системи моніторингу та мережі на базі Linux-машин
Use and Management of Animal Manure by the Communal Farmers, Seke District, Mashonaland East Province, Zimbabwe
Authors: C Parwada , V Chigiya , W Ngezimana , J Chipomho , W Bandason , G.B Nyamushamba
Published: April 2021

Poor handling and storage practices reduce the manure quality as a fertilizer.  A survey was done in the Seke communal area, Zimbabwe to establish common manure management practices, determine factors that influence use of manure and determine effects of the manure management practices on vegetable yield. A structured questionnaire was administered to 222 respondents from April to August 2019. Both descriptive and inferential statistics were done using SPSS. Chi-square tests and Spearman rank correlation were done to test for associations and the non-cause-effect relationship between different independent variables and farmers’ management practice of manure respectively. 88% of the respondents owned <1 ha of land and chicken manure was frequently (51%) used but with least (<0.5 t/ha) application quantities. Cattle manure was applied in largest (> 0.5 t/ha) quantities and >50% of the farmers were void of information on animal manure management. Fencing only was the common type of animal housing but had negative effects on quantity and quality of the manure. Drylot was most common (90%) manure management practice and different manure management practices had significantly (P<0.05) varied effects on vegetable yield. Drying manure resulted in significantly (P<0.05) low losses in manure quality. Generally, poultry and pigs manure had higher nutrient content compared to cattle and goat manure. Animal housing affected the quantity and quality of the manures as a fertilizer. Extension service programs like vocational training on manure management, exposure visits between farmers as well as a lead farm approach are necessary.
Adsorption Equilibrium, Physicochemical Parameters and Colour Deactivation Effects of Activated Carbon for Dye for Waste Water Treatment
Authors: M Alhassan , Aleiro Muhammad Sani , A.U Umar
Published: April 2021

Effluents from dye and dyeing industries constitute serious environmental threat and attracting serious attention. Activated carbon prepared from guinea corn husk and maize cobs waste materials was used as a precursor to prepare activated carbon. Variable ratios of the constituent ashes ( 1:1, 1:3 and 3:1) were prepared. The husk and cobs were ashed in a murfle furnace at 400-500oC for 2.5 h. Acid activation was carried out   by washing with HCl (1M) after which it was characterized using XRF which revealed (in variable proportions) the presence of SiO2, Al2O3 and Fe2O3 as dominant oxides in the ashes. Waste water decolourization efficiency of the adsorbents was tested using dye waste water at same contact time using variable absorbent dosage. Higher moisture (96.80±0.56), Ash (12.90±0.35), pH (6.3±0.17), Conductivity (208±1.34) and Bulk density (12.27±0.61) were obtained for guinea corn husk. The best clearity was obtained after batch adsorption experiments at 1:1 which gave the highest adsorption at equilibrium (Qe) of 28.55 compared to 12.750 and 10.900 obtained for 1;3 and 3:1 respectively.
IMPLEMENTASI PROGRAM BINA KELUARGA BALITA (BKB) GUNA MENDUKUNG KAPASITAS PENDIDIKAN ORANGTUA DALAM PENGASUHAN ANAK
Authors: Qomariah Dede Nurul , Zaenab Siti , Alamsyah Dodi , Sihabudin Opal
Published: April 2021

Program bina keluarga balita (BKB) merupakan salah satu media pelayanan kesehatan yang dikembangkan oleh BKKBN guna meningkatkan keterampilan orang tua dalam pengasuhan anak balita. Tujuan penelitian ini adalah untuk mendeskripsikan bagaimana implementasi program BKB guna mendukung kapasitas pendidikan orang tua dalam pengasuhan anak. Metode penelitian deskriptif yang digunakan dalam penelitian ini melalui pendekatan kualitatif. Teknik pengumpulan data dilakukan melalui observasi, wawancara terstruktur dan studi dokumentasi. Hasil penelitian menunjukkan bahwa implementasi program BKB yang berjalan di Kelurahan Kahuripan Kecamatan Tawang Kota Tasikmalaya masih kurang efektif, dikarenakan beberapa hal yani: a) pelaksanaan program BKB yang dilaksanakan hanya satu bulan sekali sehingga intensitas pendidikan orang tua dalam program ini berkurang; b) sarana dan prasarana untuk melaksanakan program BKB kurang memadai (misal gedung untuk pembelajaran, kualifikasi kader, modul atau bacaan bagi peserta program); c) rendahnya partisipasi peserta program dalam mengikuti kegiatan sebagai akibat dari minimnya kesadaran dan pengetahuan peserta tentang manfaat program bina keluarga balita.
MENOLAK SUBORDINASI GENDER BERDASARKAN PENTINGNYA PERAN PEREMPUAN DALAM PEMBANGUNAN NASIONAL MENJELANG BONUS DEMOGRAFI 2035
Authors: Karwati Lilis
Published: April 2021

Dalam menghadapi bonus demografi pada tahun 2035 tentunya menjadi hal yang harus kita persiapkan dari sekarang termasuk dalam menonsubordinasikan kaum perempuan. Adapun Tujuan dalam penelitian ini yaitu untuk mengetahui apa saja dampak yang ditimbulkan apabila suatu negara bertindak subordinasi terhadap kaum perempuan terhadap berbagai bidang. Metode yang digunakan dalam penelitian yaitu metode analisa deskriptif-kualitatif berbasis kajian kepustakaan (library research). Teknik analisis data dengan cara mengumpulkan berbagai macam literatur relevan yang memiliki ketersangkutpautan dengan permasalahan dalam penelitian ini. Hasil penelitian yang didapat ialah berdasarkan kajian literatur yakni terdapat beberapa dampak dari tindakan subordinasi perempuan salah satunya adalah ketidakadilan peran gender menjelang era bonus demografi tahun 2035.
Management accounting instruments as a security engineering tools used in solving crisis problems (Threats)
Authors: KUCZYŃSKA-CESARZ Anna
Published: April 2021

Managing organizations means taking lots of decisions based on information contained mainly in the accounting books and financial statements. The processing of this information for decision-making purposes is the domain of management accounting, offering managers a number of decision-making tools described in this article to help overcome difficulties (threats), also known as crisis situations. From the presented management tools (security engineering tools) budgeting with attention to the creation of a budget in the enterprise (traditional budget and budget based on activity-based costing) and task-based budget in public finance sector units has been characterized. Both budgets were compared, taking into account common features. The comparison shows that budgeting based on activity-based costing and task-based budgeting are instruments combining goals with the tasks of the organization and the efficiency of using the resources available.
A Vertex-Weighted Tutte Symmetric Function, and Constructing Graphs with Equal Chromatic Symmetric Function
Authors: Aliste-Prieto José , Crew Logan , Spirkl Sophie , Zamora José
Published: April 2021

This paper has two main parts. First, we consider the Tutte symmetric function XB, a generalization of the chromatic symmetric function. We introduce a vertex-weighted version of XB and show that this function admits a deletion-contraction relation. We also demonstrate that the vertex-weighted XB admits spanning-tree and spanning-forest expansions generalizing those of the Tutte polynomial by connecting XB to other graph functions. Second, we give several methods for constructing nonisomorphic graphs with equal chromatic and Tutte symmetric functions, and use them to provide specific examples.
The Erdős-Hajnal Property for Graphs with No Fixed Cycle as a Pivot-Minor
Authors: Kim Jaehoon , Oum Sang-il
Published: April 2021

We prove that for every integer $k$, there exists $\varepsilon>0$ such that for every $n$-vertex graph with no pivot-minors isomorphic to $C_k$, there exist disjoint sets $A$, $B$ such that $|A|,|B|\ge\varepsilon n$, and $A$ is complete or anticomplete to $B$. This proves the analog of the Erdős-Hajnal conjecture for the class of graphs with no pivot-minors isomorphic to $C_k$.
Safety and Health Implications of COVID-19 on the United States Construction Industry
Authors: Choi Sang D , Staley John
Published: April 2021

The construction industry is an essential U.S. business sector, yet it suffers from an elevated risk for work-related fatalities and injuries. The COVID-19 pandemic has only exacerbated this risk, as well as shone a light on the severe economic/financial/labor burdens and safety/health concerns the sector has faced. As such, the purpose of this review paper is to synthesize the safety and health issues associated with COVID-19 pandemic in the construction industry, and summarize the challenges and opportunities for construction stakeholders in implementing COVID-19 safety and health measures in the construction industry. This paper has explored the challenges in construction and COVID-19; COVID-19 knowledge, preventative behaviors, and risk perception among construction workers; recommendations/practical implications/preventive measures; and COVID-19 education in compliance/guidance, strategies to combat impacts of COVID-19 pandemic, smart digital technologies, and worker wellbeing and work-related quality of life (e.g., mental health). It is warranted that the construction industry needs to take better steps in preparing for future, man-made or natural disaster events, and subsequent acute and chronic disease risk, in order to yield a healthier/safer construction workplace.
Ethical Dimensions of Entrepreneurial Practice in Three Traditions
Authors: Situma Joseph , Akaranga Stephen Ifedha
Published: April 2021

Entrepreneurs are a category of agents who are found in all human societies and their significance has been variously assessed. Although they are a universal phenomenon, their repertoire of activities, thoughts, motivations and emotions appear to be tradition-specific. This paper considers entrepreneurial practice in the liberal, libertarian, and communitarian traditions. The first objective is to determine if the primary ethical dimensions of entrepreneurial practice are structured by tradition. The second objective is to evaluate the status of entrepreneurial practice in the three traditions vis-à-vis common good. The paper uses the conceptual framework of tradition and its allied concepts of practice and narrative. It concludes that although the primary ethical dimensions of entrepreneurial practice arise from a tradition, novel entrepreneurial practices depart from tradition-set norms. It also concludes that entrepreneurial practices can and do violate the common good—more so in the liberal and libertarian tradition
Pagamento e preço no contrato de arrendamento rural: uma análise de construção jurisprudencial no âmbito do STJ
Authors: Parreira Neto Manoel Martins
Published: April 2021

O presente artigo tem como objetivo apresentar a problemática do preço e pagamento no contrato de arrendamento rural, considerando de perto a legislação, como a Lei nº 11.443/2007, de modo a apresentar, no âmbito do Superior Tribunal de Justiça (STJ), qual seria a construção de sua posição, partindo da análise de julgados entre 1992 e 2017. Da mesma forma, apresenta a perspectiva da doutrina agrarista, e explora as necessidades de atualização legislativo-jurisprudencial na matéria. Por fim, aborda um posicionamento particular.
Testing the construct validity of competing measurement approaches to probed mind-wandering reports
Authors: Kane Michael J. , Smeekens Bridget A. , Meier Matt E. , Welhaf Matthew S. , Phillips Natalie E.
Published: April 2021

Psychology faces a measurement crisis, and mind-wandering research is not immune. The present study explored the construct validity of probed mind-wandering reports (i.e., reports of task-unrelated thought [TUT]) with a combined experimental and individual-differences approach. We examined laboratory data from over 1000 undergraduates at two U.S. institutions, who responded to one of four different thought-probe types across two cognitive tasks. We asked a fundamental measurement question: Do different probe types yield different results, either in terms of average reports (average TUT rates, TUT-report confidence ratings), or in terms of TUT-report associations, such as TUT rate or confidence stability across tasks, or between TUT reports and other consciousness-related constructs (retrospective mind-wandering ratings, executive-control performance, and broad questionnaire trait assessments of distractibility–restlessness and positive-constructive daydreaming)? Our primary analyses compared probes that asked subjects to report on different dimensions of experience: TUT-content probes asked about what they’d been mind-wandering about, TUT-intentionality probes asked about why they were mind-wandering, and TUT-depth probes asked about the extent (on a rating scale) of their mind-wandering. Our secondary analyses compared thought-content probes that did versus didn’t offer an option to report performance-evaluative thoughts. Our findings provide some “good news”—that some mind-wandering findings are robust across probing methods—and some “bad news”—that some findings are not robust across methods and that some commonly used probing methods may not tell us what we think they do. Our results lead us to provisionally recommend content-report probes rather than intentionality- or depth-report probes for most mind-wandering research.
Molecular gastronomy-an incentive for innovative research of various aspects related to the nutrition process
Authors: Kim Igor , Megeda Evgeniy
Published: April 2021

The growing competition in the market of food manufacturers in recent years makes more and more demands on the quality and consumer appeal of food products. The necessity of continuous improvement of the senso-ry properties of products determines high requirements for the professional knowledge of industrial technol-ogists. Today, there is no doubt that the food industry is experiencing a significant shortage of specialists who have systemic and commercially applicable knowledge of both the organoleptic analysis itself and the mechanisms of molecular transformations and processes that affect the formation of sensory properties of food.

The modern scientific discipline "Molecular gastronomy" has significant potential for systematizing knowledge regarding mechanisms of chemical and physical changes that occur in a product during techno-logical processing, and their influence on the formation of organoleptic properties of products. We believe that the inclusion of this discipline in the educational process to study specialists of the directions "Food products of animal origin" and "Food products from vegetable raw materials" is highly-demanded and well-timed. In the fishing industry, the studying of technologists for this discipline can be implemented within the profiles ''Technology of products from aquatic biological resources'' and ''Food biotechnology of aquatic or-ganisms''. This discipline can be included both in the preparation of bachelors within these profiles, and in the educational program for the preparation of masters.
Development of biological resources of the Volga-Caspian fishing area in 1918-1930 (historical overview)
Authors: Glubokov Aleksandr , Smirnov Vladimir , Smirnov Andrey , Glubokovsky Michael
Published: April 2021

The state of biological resources of the Volga-Caspian fishing area in the period from 1918 to 1930, before the construction of a cascade of hydroelectric power stations, is considered. The «Big Volga» plan was supposed to solve transport, irrigation and energy problems, as the most important for the industrial development of the country, the harm to fishing was perceived as an inevitable loss. Drastic changes in the hydro regime of the river, deterioration of its water quality, dams that prevent fish from spawning, led to a further decrease in catches.
Evaluasi Seminar Nasional Online, Program Bermain Bersama Anak Selama Masa Pandemi Covid 19
Authors: Jasmidalis Diah Andika Sari , Astari Tiara , Yulianingsih Ika , Cahyanti Nova Nur , Sarah Siti
Published: April 2021

ABSTRAK. Tidak ada yang menduga dan siap menghadapi pandemi covid-19. Sejak diberlakukannya  pembatasan sosial berskala besar (PSBB) oleh pemerintah pada 16 Maret 2020,  semua kegiatan belajar, bekerja dan beribadah dilakukan dirumah saja. Para ibu bekerja harus bekerja sekaligus mengajar anaknya selama dirumah saja. Ibu berfungsi ganda menjadi ibu guru bagi anaknya dirumah. Seminar on line ini diadakan untuk  memberikan panduan kepada para ibu, untuk melakukan kegiatan bermain bersama anaknya selama dirumah saja. Tujuan penelitian ini adalah  untuk mengevaluasi apakah seminar tentang Program bermain bersama anak selama dirumah saja  berdampak positif terhadap  peserta dan juga lembaga penyelenggara. Metoda evaluasi yang digunakan adalah  metode penelitian evaluasi dari Kickpatrick. Ada 4 level metode evaluasi Kirckpatrick, yaitu level 1. reaksi, level 2. Belajar, level 3 perilaku, dan level 4 dampak. Penelitian  evaluasi hasil  penyelenggaraan seminar nasional secara on line ini dilakukan pada  level 1 dan level 2.  Dari hasil penelitian  didapatkan bahwa reaksi peserta terhadap pelaksanaan seminar on line tentang program bermain bersama anak selama masa pandemi covid-19 ini sangat positif.  Sedangkan  pada level 2, dari hasil  perbandingan pre test dan post test  terhadap materi  seminar didapatkan peningkatan pengetahuan para peserta  tentang  bermain bersama anak dirumah.
AUTOMATIC LINEAMENTS MAPPING AND EXTRACTION IN RELATIONSHIP TO NATURAL HYDROCARBON SEEPAGE IN UGWUEME, SOUTH-EASTERN NIGERIA
Authors: Enoh Mfoniso Asuquo , Okeke Francis Ifeanyi , Okeke Uzoma Chinenye
Published: April 2021

The study focus on the integration of Remote Sensing and Geographic Information System for identification and delineation of lineaments in relation to natural hydrocarbon seepage, which occur in Ugwueme, South-Eastern Nigeria. To achieve this objective, remotely sensed data (ASTER Digital Elevation Model and Landsat 8 OLI/TIRS) were used to depict the surface expression of faults, folds and fractures which are expressed in the form of lineaments. The global positioning system (GPS) was also used for ground verification. The geology map of the study area, which is elucidated in the geology of Nigeria was used to show the distribution of rocks and other geologic structures. The delineation of lineament features was done automatically with the PCI Geomatica while the Rock ware was used to generate the Rose diagram for demonstration of the direction of the extracted lineaments. The classification of the lineaments density and the lineaments intersection analysis were categorized as very low, low, moderate, high and very high classes respectively. Areas classified as very high to high lineaments density are potential zone, which act as conduits for hydrocarbon seepage. The result shows that a total lineament frequency of 947 km and a total lineament length of 946 km were delineated from the satellite data. The result further shows that areas with high lineaments density are concentrated in the southwest, south, central and northern part of the study area while areas with low lineament density were found within the eastern part of Ugwueme. The Rose diagram highlight the major trend in the (NE-SW), (N-S) and (NW-SE) directions, and the minor trend in the (W-E) direction. These directional trends depict the directions of lineaments which act as conduits zones for hydrocarbon seepage in the region. The overall findings of the study shows that lineament density, lineament intersection and rose diagrams are concepts applicable in hydrocarbon oil and gas seepages.
LOFAR Detection of 110–188 MHz Emission and Frequency-dependent Activity from FRB 20180916B
Authors: Pleunis Z. , Michilli D. , Bassa C. G. , Hessels J. W. T. , Naidu A. , Andersen B. C. , Chawla P. , Fonseca E. , Gopinath A. , Kaspi V. M. , Kondratiev V. I. , Li D. Z. , Bhardwaj M. , Boyle P. J. , Brar C. , Cassanelli T. , Gupta Y. , Josephy A. , Karuppusamy R. , Keimpema A. , Kirsten F. , Leung C. , Marcote B. , Masui K. W. , Mckinven R. , Meyers B. W. , Ng C. , Nimmo K. , Paragi Z. , Rahman M. , Scholz P. , Shin K. , Smith K. M. , Stairs I. H. , Tendulkar S. P.
Published: April 2021

The object FRB 20180916B is a well-studied repeating fast radio burst source. Its proximity (∼150 Mpc), along with detailed studies of the bursts, has revealed many clues about its nature, including a 16.3 day periodicity in its activity. Here we report on the detection of 18 bursts using LOFAR at 110–188 MHz, by far the lowest-frequency detections of any FRB to date. Some bursts are seen down to the lowest observed frequency of 110 MHz, suggesting that their spectra extend even lower. These observations provide an order-of-magnitude stronger constraint on the optical depth due to free–free absorption in the source’s local environment. The absence of circular polarization and nearly flat polarization angle curves are consistent with burst properties seen at 300–1700 MHz. Compared with higher frequencies, the larger burst widths (∼40–160 ms at 150 MHz) and lower linear polarization fractions are likely due to scattering. We find ∼2–3 rad m−2 variations in the Faraday rotation measure that may be correlated with the activity cycle of the source. We compare the LOFAR burst arrival times to those of 38 previously published and 22 newly detected bursts from the uGMRT (200–450 MHz) and CHIME/FRB (400–800 MHz). Simultaneous observations show five CHIME/FRB bursts when no emission is detected by LOFAR. We find that the burst activity is systematically delayed toward lower frequencies by about 3 days from 600 to 150 MHz. We discuss these results in the context of a model in which FRB 20180916B is an interacting binary system featuring a neutron star and high-mass stellar companion.
The Solar-cycle Variations of the Anisotropy of Taylor Scale and Correlation Scale in the Solar Wind Turbulence
Authors: Zhou G. , He H.-Q.
Published: April 2021

The field-aligned anisotropy of the solar wind turbulence, which is quantified by the ratio of the parallel to the perpendicular correlation (and Taylor) length scales, is determined by simultaneous two-point correlation measurements during the time period 2001–2017. Our results show that the correlation scale along the magnetic field is the largest, and the correlation scale in the field-perpendicular directions is the smallest, at both solar maximum and solar minimum. However, the Taylor scale reveals inconsistent results for different stages of the solar cycles. During the years 2001–2004, the Taylor scales are slightly larger in the field-parallel directions, while during the years 2004–2017, the Taylor scales are larger in the field-perpendicular directions. The correlation coefficient between the sunspot number and the anisotropy ratio is employed to describe the effects of solar activity on the anisotropy of solar wind turbulence. The results show that the correlation coefficient regarding the Taylor scale anisotropy (0.65) is larger than that regarding the correlation scale anisotropy (0.43), which indicates that the Taylor scale anisotropy is more sensitive to the solar activity. The Taylor scale and the correlation scale are used to calculate the effective magnetic Reynolds number, which is found to be systematically larger in the field-parallel directions than in the field-perpendicular directions. The correlation coefficient between the sunspot number and the magnetic Reynolds number anisotropy ratio is −0.75. Our results will be meaningful for understanding the solar wind turbulence anisotropy and its long-term variability in the context of solar activity.
Conditions for Superwind Classes of Super Star Clusters
Authors: Danehkar A. , Oey M. S. , Gray W. J.
Published: April 2021

Mechanical feedback from young massive stars in super star clusters contributes to the formation of superwinds and superbubbles in star-forming regions. We conduct hydrodynamic simulations using the non-equilibrium ionization package maihem to explore how outflow velocity, mass-loading, metallicity, and ambient density can affect the occurrence of catastrophic cooling. To predict optical and UV emission lines, we apply the photoionization code cloudy to the physical conditions predicted by our hydrodynamic simulations. Our results could be useful for characterizing catastrophic cooling in starburst regions like the nearby Green Peas and distant star-forming galaxies.
Relevant Coma Composition Investigations for the Comet Interceptor Mission
Authors: Boice Daniel C. , Kobayashi Hitomi , Kawakita Hideyo , Shinnaka Yoshiharu
Published: April 2021

The Comet Interceptor Mission (ESA/JAXA) aims to visit a long-period comet or interstellar object. Its primary science goals are to characterize the object's shape, structure, and the composition of its surface and gas coma. The mission consists of three spacecraft, the primary and two accompanying ones. The focus of this paper is the unique synergetic activities between two mass spectrometers to investigate the chemical composition of the coma, one on the primary spacecraft and another on an accompanying spacecraft. Both can be operated in a complementary fashion, at different locations and at the same time, to sort out spatial from temporal effects. Relevant investigations of the coma composition and chemistry within the technical specifications of the instruments could address several unsolved questions. The Comet Interceptor Mission is posed to be an important mission for advancing our knowledge of comets, especially clues for understanding coma chemistry and composition.
Preliminary Results of Virtual Reality Mapping of E+A Galaxies and Candidates in Nearby Rich Clusters of Galaxies
Authors: Liu Allen G. , Liu Charles T.
Published: April 2021

In the study of large astronomical data sets, virtual reality (VR) can help build valuable spatial intuition for scientific discovery. We created VR visualizations of E+A galaxies and candidates in four nearby clusters of galaxies: Leo, Virgo, Hercules, and Coma. E+A's are a type of post-starburst galaxy in which all star formation has been recently (∼1 Gyr ago) quenched. Our E+A samples were assembled and cataloged by the Y/Dim collaboration through visual and quantitative analysis of SDSS DR16 spectra. The visualizations are designed for Oculus VR headsets, and utilize C# scripts which interface with the Unity engine, including public domain code and code developed by the lead author. We use these visualizations to find features of the aforementioned galaxy clusters: for instance, a “nose” of low velocity objects in the center of the Virgo cluster and a collection of E+A candidates along a galactic filament in the Coma cluster.
ZTF-identified HW Virginis Systems
Authors: Enenstein Josie , Burdge Kevin , Prince Thomas
Published: April 2021

We present 46 HW Virginis Post-Common Envelope Binary Systems identified by the Zwicky Transient Facility, 26 of which appear to be new discoveries. Through the application of the Box Least-Squares Algorithm to ZTF data, we searched a data set of 17,473 systems for periodicity and phase-folded all of the ZTF lightcurves of the objects at their best period. Through visual analysis of these phase-folded lightcurves, we identified the 46 HW Vir Systems.
The M
*–M
halo Relation at 0.08 < z < 1.53 in COSMOS: The Role of Active Galactic Nucleus Radio-mode Feedback
Authors: Vardoulaki Eleni , Gozaliasl Ghassem , Finoguenov Alexis , Jiménez-Andrade Eric F. ,   and the COSMOS Team
Published: April 2021

In the current picture of cosmology and astrophysics, the formation and evolution of galaxies is closely linked to that of their dark matter haloes. The best representation of this galaxy-dark matter halo co-evolution is the

M

*

–

M

halo

relation. In this study we investigate how the radio-mode feedback from active galactic nuclei (AGN) affects the

M

*

–

M

halo

relation at redshifts 0.08 < z < 1.53. We use a set of 111 radio-selected AGN at 3 GHz VLA-COSMOS within the X-ray galaxy groups in the COSMOS field. We compare these results to those for 171 star-forming galaxies (SFGs), using the theoretical relation of Moster et al. We find that AGN agree within 1% with the Moster et al. relation, SFGs show an offset of 37%, suggesting that the radio-mode feedback from AGN at a median redshift of ∼0.5 still plays a significant role in the

M

*

–

M

halo

relation.
SED Machine Spectra for HO Puppis and V722 Tauri
Authors: Ngeow Chow-Choong , Lee Chien-De , Coughlin Michael W. , Laher Russ R.
Published: April 2021

We present low-resolution spectra collected with the Spectral Energy Distribution Machine (SEDM) for an IW And-type dwarf nova, HO Puppis, and a Be star, V722 Tauri. The SEDM is an integrated field unit spectrograph mounted on the 60 inch telescope at the Palomar Observatory, with a spectral resolution of R ∼ 100 in the optical wavelength range. The Hα emission line was clearly detected for the bright Be star V722 Tauri at ∼12.5 mag, but barely detected in the spectra for the ∼13.7 mag HO Puppis. Our SEDM observations could be used as guidance for observing similar objects with the SEDM, as well as other R ∼ 100 spectrographs, in the future.
Accretion Belt Characteristics in a Hydrodynamic Evolution of a Contact Binary
Authors: Barnett Elliot T. , Motl Patrick M.
Published: April 2021

We compare features from the circulation model developed in Stȩpień for contact binaries to a long-term hydrodynamical evolution of a symmetric contact binary. The numerical evolution is fully three-dimensional and begins from an equilibrium structure in contact at one grid cell. As the evolution is conducted with Flow-ER, an explicit hydrodynamics code for self-gravitating fluids, we are not able to address energy transport or evolution on a thermal timescale. However, we are able to investigate the width and height of the equatorial accretion belt and the flow of material in and out of the inner Lagrange point. The flow of material between the two components arises quickly in the evolution and does not change significantly through tens of orbital periods. As the stellar components are modeled as polytropes of index 3/2 a slight numerical mass imbalance causes one component to only gain mass over the course of the simulation leading eventually to a dynamical merger of the contact binary.
Exploiting Kepler’s Heritage: A Transfer Learning Approach for Identifying Exoplanets’ Transits in TESS Data
Authors: Fiscale Stefano , Ciaramella Angelo , Inno Laura , Covone Giovanni , Ferone Alessio , Rotundi Alessandra , Hoffman Kelsey L. , Quintana Elisa , Rowe Jason F. , Bifulco Ida , Cacciapuoti Luca , Gallo Francesco , Ienco Riccardo
Published: April 2021

In the last decade, exoplanets space missions started to collect a huge amount of photometric observations, with over ∼1,000,000 new light curves generated every month from the Transiting Exoplanet Survey Satellite (TESS) full-frame images alone. In order to analyze such an unprecedented volume of data, automated planet-candidate detection has become an appreciable replacement to human vetting. In this work, we present a Machine Learning approach, based on Deep Neural Networks, to perform a binary classification of TESS light curves in terms of planet candidate and not-planet. Since few TESS labeled data exist to date, we pre-train the network with Kepler DR24 data set, including ≳15,000 labeled light curves. Our pre-trained model is then tested on ExoFOP data, showing an appreciable gain in terms of reliability with respect to a randomly initialized model.
Epidemiologic Characteristics of COVID-19 in Guizhou Province, China
Authors: Ping Kaike , Lei Mingyu , Gou Yun , Tao Zhongfa , Yao Guanghai , Hu Can , Tao Qin , Zou Zhiting , Wang Dingming , Li Shijun , Huang Yan
Published: April 2021

Introduction: At the end of 2019, the COVID-19 broke out, and spread to Guizhou province in January of 2020.

Methodology: To acquire the epidemiologic characteristics of COVID-19 in Guizhou province, we collected data from 169 laboratory-confirmed COVID-19 related cases. We described the demographic characteristics of the cases and estimated the incubation period, serial interval and the effective reproduction number. We also presented two representative case studies in Guizhou province: Case Study 1 was an example of the asymptomatic carrier; while Case Study 2 was an example of a large and complex infection chain that involved four different regions, spanning three provinces and eight families.

Results: Two peaks in the incidence distribution associated with COVID-19 in Guizhou province were related to the 6.04 days (95% CI: 5.00 – 7.10) of incubation period and 6.14±2.21 days of serial interval. We also discussed the effectiveness of the control measures based on the instantaneous effective reproduction number that was a constantly declining curve.

Conclusions: As of February 2, 2020, the estimated effective reproduction number was below 1, and no new cases were reported since February 26. These showed that Guizhou Province had achieved significant progress in preventing the spread of the epidemic. The medical isolation of close contacts was consequential. Meanwhile, the asymptomatic carriers and the super-spreaders must be isolated in time, who would cause a widespread infection.
An unequivocal superbug: PDR Klebsiella pneumoniae with an arsenal of resistance and virulence factor genes
Authors: Sleiman Ahmad , Awada Bassel , Mocadie Michele , Sherri Nour , Haraoui Louis-Patrick , Baby Vincent , Araj George F , Kanj Souha S , Rizk Nesrine , Matar Ghassan M , Abou Fayad Antoine G
Published: April 2021

Introduction: Infections caused by extensively-drug resistant (XDR) and pan-drug resistant (PDR) Klebsiella pneumoniae represent an emerging threat due to the high associated mortality. This study aimed to characterize two carbapenem resistant K. pneumoniae strains from the same patient, the first being PDR (referred to as IMP 1078b) and the second being XDR (referred to IMP 1078s) isolated from the same patient.

Methodology: Antimicrobial susceptibility testing was done for the 2 K. pneumoniae isolates, followed by carbapenem/β-lactamase inhibitor combination assay, and fitness cost against cefepime and meropenem. Then, whole-genome sequence analysis was performed to decipher the molecular mechanisms behind the high level of resistance recorded in both isolates. Finally, qRT-PCR was done for β-lactam resistant genes.

Results: This is the first report about a K. pneumoniae isolate harboring 47 antimicrobial resistance genes and having type IV pilli (Yersinia) and the fimbrial adherence determinant Stb (Salmonella) as virulence factors. Further analysis on both isolates are discussed within the article.

Conclusion: The co-existence of a high number of antimicrobial resistant (AMR) genes and virulence factor genes may lead to a life threatening invasive and untreatable infection.
Coventry Patmore, chantre du bonheur conjugal
Authors: Mouton Jean
Published: April 2021

Résumé Remarié après deux veuvages, converti au catholicisme, Coventry Patmore (1823-1896) a chanté l’amour conjugal, comme reflet de l’amour de Dieu.
La crainte de l’effondrement et le sentiment de la religiosité
Authors: Makki Rajaa
Published: April 2021

Le Liban présente une image de relation entre politique et religion, l’imaginaire est exposé à une guerre perpétuelle. L’engagement dans l’analyse est marqué par la destruction, le sacrifice et la perte, dans le cadre collectif, l’engagement religieux y prend une place particulière.
Confinement et sorties de confinement, quelques retours de terrain
Authors: Fabry Philippe
Published: April 2021

La crise sanitaire a bousculé les organisations, tant publiques que privées. L’adaptation s’est faite dans l’urgence, du jour au lendemain, et le confinement a servi de révélateur des forces et des fragilités des établissements et services, avec parfois de graves dysfonctionnements. Le confinement est aussi un révélateur de l’augmentation de l’exigence d’autonomie, aussi bien pour les professionnels que pour les personnes accompagnées, et c’est une source croissante d’insécurité sociale.
L’Aubépine : faire avec le confinement
Authors: Debatty François , Pétry Philippe
Published: April 2021

Cet entretien présente une maison d'enfants belge aux prises avec le confinement. Elle a la particularité de proposer des modes d'hébergement collectif et en résidence autonome. Durant le confinement, l’établissement a été accompagné par un organisme de formation RTA pour élaborer des outils de suivi dynamique basés sur le recueil des souhaits et besoins des jeunes de leur famille ainsi que sur les capacités de mobilisation des réseaux de soutien externes ou familiaux. Ce travail a permis un approfondissement des fondamentaux de l’accompagnement.
Talking-as-streaming : la rêverie en contexte digital
Authors: Malisoux Xavier
Published: April 2021

L'article revient brièvement sur quelques circonstances psychosociales liées à la pandémie pour en proposer une lecture psychanalytique. Il aborde plus spécifiquement l'impact du confinement sur la pratique clinique au sein d'un centre de prévention du suicide. Plusieurs constats et hypothèses sont proposés, notamment au sujet des jeunes. Finalement, c'est la pratique de visioconsultation, rendue inévitable dans ce contexte, qui est discutée. L'effet d'une telle digitalisation de la relation thérapeutique est envisagé au regard de la nature de la représentation psychique à l'œuvre chez le patient, de la capacité de rêverie du thérapeute, et de la qualité de l'espace intermédiaire.
Une parole déplacée
Authors: Legrand Dorothée
Published: April 2021

Il s’agit de venir parler : non seulement parler, mais venir, se déplacer, psychiquement, se déplacer assez pour suspendre un moment le silence et le hurlement du monde – pour s’entendre le dire et ainsi y changer fondamentalement sa place. Ce déplacement ne va pas sans corps. Alors, qu’en reste-t-il quand nos corps sont confinés ? Pas seulement une présence corporelle résiduelle, mais aussi un autre corps : un corps qui se déploie comme le lieu d’où la parole s’élève. Il s’agit donc de l’écouter – pour ne pas, cet autre corps, le confiner.
CyberpsyCO , une aventure collective en ligne en temps de confinement
Authors: Tordo Frédéric
Published: April 2021

Dans ce texte, l’auteur présente la plateforme Internet CyberpsyCO , dont la naissance intervient en France en mars 2020, dans un contexte de crise sanitaire et de confinement. Cette plateforme collaborative avait pour objectif de proposer aux praticiens de la santé mentale des recommandations des pratiques en ligne, ainsi que des dispositifs cliniques et de supervision. Elle intervient dans un contexte où la cyberpsychologie , qui étudie les interactions entre l’homme et les technologies, connaît un essor important, par exemple avec la fondation du premier Diplôme Universitaire de Cyberpsychologie (Université de Paris) en France.