bluuebunny/crossref_metadata_2025 huggingface dataset:
Synthesis and characterization of poly N-isopropylacrylamide-co-acrylic acid and their binary blend films properties
Authors: Fernandez Bordin Santiago Pablo , Padró Juan Manuel , Galván Josa Víctor , Romero Marcelo Ricardo
Published: December 2021

In past decades, the combination of polymers to obtain blends in film shapes has been a very effective strategy to meet the needs of the increasingly demanding market. In this sense, pH- and thermo-sensitive (PHT) polymers have recently drawn the attention of researchers for their countless applications. However, binary mixtures of typical PHTs like polyacrylic acid (p-AAc) and poly-N-isopropylacrylamide (p-NIPAm) were unable to form films. In this sense, it was hypothesized that NIPAm copolymerized with AAc monomers can yield blends with virtually the same functional group composition of binary mixtures of p-NIPAm and p-AAc homopolymers but with different properties of film formation. For this, a copolymeric radical synthesis and the subsequent analytical studies were complemented to get a broad description of these materials. P-NIPAm and p-AAc homopolymers and different proportions of copolymers p-NIPAm-co-AAc were obtained and thoroughly characterized by Fourier Transform Infrared Spectroscopy (FT-IR), Size Exclusion Chromatography (SEC), acid-basic titration, and rotational rheology. Among the samples, the solutions of p-AAc with p-NIPAm and p-NIPAm-co-AAc copolymers with a higher proportion of NIPAm units (0.8 and 0.6 NIPAm/AAc) precipitated as interpolymer complexes. Since it was expected, the combination with p-NIPAm-co-AAc 40/60 copolymer, which has a higher proportion of AAc groups and pH sensitivity, allowed obtaining blends suitable for the preparation of films. Furthermore, despite the fact that the combinations of p-NIPAm-co-AAc 40/60 with p-NIPAm-co-AAc 80/20 or p-NIPAm were successful, the mechanical properties of the films are worse compared to the other blends, leaving this issue open for subsequent studies.
Electrolyte reactivity at the charged Ni-rich cathode interface and degradation in Li-ion batteries
Authors: Dose Wesley M. , Temprano Israel , Allen Jennifer P. , Björklund Erik , O’Keefe Christopher A. , Li Weiqun , Mehdi B. Layla , Weatherup Robert S. , De Volder Michael F. L. , Grey Clare P.
Published: December 2021

The chemical and electrochemical reactions at the positive electrode-electrolyte interface in Li-ion batteries are hugely influential on cycle life and safety. Ni-rich layered transition metal oxides exhibit higher interfacial reactivity than their lower Ni-content analogues, reacting via poorly understood mechanisms. Here, we study the role of the electrolyte solvent, specifically cyclic ethylene carbonate (EC) and linear ethyl methyl carbonate (EMC), in determining the interfacial reactivity at LiNi0.33Mn0.33Co0.33O2 (NMC111) and LiNi0.8Mn0.1Co0.1O2 (NMC811). Parasitic currents are measured during high voltage holds in NMC/Li4Ti5O12 (LTO) cells, LTO avoiding parasitic currents related to anode-cathode reduction species cross-over, and are found to be higher for EC-containing vs. EC-free electrolytes with NMC811. No difference between electrolytes are observed with NMC111. On-line gas analysis reveals this to be related to lattice oxygen release, and accompanying electrolyte decomposition, which increases substantially with greater Ni content, and for EC-containing electrolytes with NMC811. This is corroborated by electrochemical impedance spectroscopy (EIS) and transmission electron microscopy (TEM) of NMC811 after the voltage hold, which show a higher interfacial impedance and a thicker oxygen-deficient rock-salt surface reconstruction layer, respectively. Combined findings from solution NMR, ICP (of electrolytes) and XPS analysis (of electrodes) reveal that higher lattice oxygen release from NMC811 in EC-containing electrolytes is coupled with more electrolyte breakdown and higher amounts of transition metal dissolution compared to EC-free electrolyte. Finally, new mechanistic insights for the chemical oxidation pathways of electrolyte solvents and, critically, the knock-on chemical and electrochemical reactions that further degrade the electrolyte and electrodes curtailing battery lifetime are provided.
Mapping out the aqueous surface chemistry of metal oxide nanocrystals; carboxylate, phosphonate and catecholate ligands
Authors: Deblock Loren , Pokratath Rohan , De Buysser Klaartje , De Roo Jonathan
Published: December 2021

Iron oxide and hafnium oxide nanocrystals are two of the few successful examples of inorganic nanocrystals used in a clinical setting. Although crucial to their application, their aqueous surface chemistry is not fully understood. The literature contains conflicting reports regarding the optimum binding group. To alleviate these inconsistencies, we set out to systematically investigate the interaction of carboxylic acids, phosphonic acids and catechols to metal oxide nanocrystals in polar media. Using Nuclear Magnetic Resonance spectroscopy and Dynamic Light Scattering, we map out the pH-dependent binding affinity of the ligands towards hafnium oxide nanocrystals (an NMR compatible model system). Carboxylic acids easily desorb in water from the surface and only provide limited colloidal stability from pH 2 – 6. Phosphonic acids on the other hand provide colloidal stability over a broader pH range but also feature a pH-dependent desorption from the surface. They are most suited for acidic to neutral environments (pH < 8). Finally, nitrocatechol derivatives provide a tightly bound ligand shell and colloidal stability at physiological and basic pH (6-10). While dynamically bound ligands (carboxylates and phosphonates) do not provide colloidal stability in phosphate buffered saline, the tightly bound nitrocatechols provide long term stability. We thus shed light on the complex ligand binding dynamics on metal oxide nanocrystals in aqueous environments. Finally, we provide a practical colloidal stability map, guiding researchers to rationally design ligands for their desired application.
Adolescent pregnancy, public policies, and targeted programs in Latin America and the Caribbean: a systematic review
Authors: Rodríguez Ribas Clara
Published: December 2021

Objective.

To present and assess evidence from Latin America and the Caribbean (LAC) on public policies and targeted programs which may have influenced variations in adolescent pregnancy or its proximate determinants, and to identify knowledge gaps that require further research.

Methods.

A systematic review was performed based on the 2015 PRISMA protocol. Five databases were searched for articles published between 2000 and 2019 that refer to at least one country in LAC. The outcomes of interest were adolescent pregnancy or its proximate determinants (sexual behavior, contraceptive use, and/ or abortion). Only studies exploring correlations between the outcomes of interest and public policies or targeted programs were included in the analysis.

Results.

Thirty studies spanning 14 countries were selected for analysis. Twenty-three of these (77%) were not included in prior systematic reviews on adolescent pregnancy. Public policies related to conditional cash transfers and compulsory education have the strongest evidence of correlation with adolescent pregnancy prevention. Emerging research points to the potential positive impact of life-skills programs for adolescents. Evidence from public health policies and programs was limited.

Conclusions.

Further research which incorporates an intersectional analysis is needed to better understand which policies and programs could lead to steeper declines in adolescent pregnancy in the region. Evidence on effects of expanded family planning services and secondary school attainment upon adolescent pregnancy are particularly absent.
Overview of electric pump units for spacecraft thermal control systems
Authors: Korotkov E. B. , Shirobokov O. V. , Matveev S. A. , Yudina Z. A.
Published: December 2021

The paper reports a brief description of spacecraft operating conditions, the main reasons of heating and thermal gradient appearance and need to reassign the thermal energy. Active thermal control systems and their advantages are considered, spacecraft for which the use of this type of thermal control systems is a priority. The electric pumping unit is pointed as a key unit of active thermal control systems. The electric pump unit is considered from the as the electromechanical system, its key elements are pointed. A description of the preferred pump types is reported and the types of active thermal control systems are briefly discussed. The foreign and domestic operating experience of spacecraft electric pumping units, the features of their designs are considered, the most common types of key elements are determined. Based on the results of the review, it is concluded that the most relevant layout of the electric pump unit is a centrifugal electrical pump with a brushless DC motor and hydrodynamic bearings. It is also indicated that the electric pump unit is a product with a long lifetime, which complicates the task of monitoring the technical condition in order to prevent failure.
The reliability evaluation of the water surface remote monitoring satellite equipment
Authors: Gubarev A. D. , Yaschuk I. L. , Khilinskaya Ya. V.
Published: December 2021

The work is devoted to the reliability and effectiveness of the water surface remote monitoring space system. Analysis of existing monitoring methods has shown a high potential for using nanosatellites to solve the problem. As an object of study, 3U CubeSat was chosen with a payload placed on board in the form of a hyperspectral camera. To assess the reliability of the system, a mathematical model on the failure rates of subsystems is proposed. The structural and parametric reliability of the object was investigated in the Windchill Risk and Reliability software complex, taking into account the cyclogram of work and the specifics of the degradation process of individual components due to the influence of an aggressive space environment. To assess the effectiveness of the nanosatellite application, the dependence of the accuracy of determining water pollution on the operability of the photodetector was analyzed, since the photodetector is the central link in the transmission of optical information. The effective measurement of brightness spectral coefficients over the entire service life of nanosatellite is also obtained. Minimum required number of operable pixels was identified for monitoring the water surface with sufficient accuracy and reliability.
Perspectivas sobre o isolamento social e a pandemia no ensino superior
Authors: Santos Cruz José Anderson , Bizelli José Luís , Bizelli Thaís Vargas
Published: December 2021

Desde março de 2020, medidas de controle da transmissão do COVID-19 – suspensão de atividades, isolamento social, uso de máscaras e testagem em massa da população – provocaram consequências na Educação: suspensão de aulas presenciais, instabilidade organizacional, precariedade de respostas pedagógicas à fase emergencial e migração para metodologias digitais, com resultados negativos e segmentados no público estudantil. Os alunos foram obrigados a adequar sua realidade doméstica – espaços, rotinas, dinâmicas familiares, meios digitais disponíveis – ao Ensino Emergencial Remoto, aprofundando a exclusão e a desigualdade. A pandemia escancarou os problemas estruturais brasileiros sedimentados a partir de sua divisão de classes. A pandemia e os problemas socioeconômicos descritos favoreceram o clima de ansiedade e distanciamento dentro das universidades. Mesmo aquelas que já vinham trabalhando metodologias ativas, mediadas pela tecnologia, esbarraram na falta de planejamento, na educação para o uso dos meios digitais, na precariedade das condições materiais de existência de parte significativa dos alunos, que deixaram de participar das aulas devido a problemas correlatos à situação: insônia, pânico e depressão.
Educating in pandemic times: is it something possible?
Authors: Fortunato Ivan , Rodriguez Milagros Elena , Araújo Osmar Hélio Alves
Published: December 2021

Este artigo, escrito na forma de um ensaio, retrata parcialmente o momento vivido como docentes durante a pandemia da covid-19. O texto se apresenta em três instâncias: (1) Recupera-se o início do isolamento social como momento de ruptura de um crescente desenvolvimento pedagógico realizado por uma perspectiva (autonomeada) progressista; (2) Lamenta-se o presente vivido de excessivo trabalho remoto em prol de uma resposta imediatista de manutenção de status quo; (3) Assenta-se sobre um futuro de esperança a partir de uma visão otimista, utópica e sonhadora de Paulo Freire, mas que poderia muito bem revelar-se no devir da educação escolar.
Educação remota: reflexões acerca do ensino a distância em tempos de pandemia
Authors: Cunha Arielly Kizzy , Leite da Silva Alexander Vinícius , Machado Nathalie Duarte de Andrade
Published: December 2021

Em janeiro de 2020 houve o início de um surto de doença respiratória; em 11 de março, a pandemia COVID-19 atingia o mundo todo. Para contê-la, foi recomendado isolamento social. Desde então, escolas públicas no Brasil estão adotando o ensino remoto. O objetivo do trabalho é apresentar algumas reflexões acerca das possibilidades e dificuldades observadas no processo de ensino e aprendizagem do ensino remoto na pandemia do COVID-19. Para tanto, serão recrutadas referências bibliográficas da área da Educação para corroborar com as discussões aqui empreendidas. O Ensino a Distância já existia e diversas metodologias foram desenvolvidas, mas não voltadas especificamente para o Ensino Básico. Assim, observa-se que com a pandemia não houve aplicabilidade metodológica coletiva das boas práticas para o ensino remoto. Até o presente momento, maio de 2021, são três semestres letivos sem aulas presenciais regulares e ainda não há vacina para imunizar todos. No retorno presencial, espera-se dos docentes a retomada do conteúdo que deveria ter sido ensinado e aprendido pelos escolares em prazo recorde. Dessa forma, há que se debruçar acerca das práticas de ensino e aprendizagem no ensino remoto e das metodologias já discutidas e implementadas no EaD em outros níveis de ensino para que se (re)pense os acontecimentos educacionais no período de pandemia no Brasil.
Práticas de leitura e letramentos digitais de crianças e adolescentes na pandemia do COVID-19
Authors: Santana Ana Paula , Donida Lais
Published: December 2021

O cenário pandêmico atual revelou-se como um momento oportuno para se (re)pensar as implicações de práticas de leitura realizadas, principalmente, no suporte digital. Dessa forma, o objetivo desse artigo é analisar as práticas de leituras e letramentos digitais de crianças e adolescentes durante a pandemia do COVID-19. Os delineamentos metodológicos envolveram uma pesquisa com 30 participantes, entre sete e 17 anos, e seus familiares, por meio de um questionário semiestruturado on-line. Os resultados apontam que as práticas de letramentos digitais voltam-se principalmente a jogos, aulas on-line e utilização de redes sociais. A leitura de livros digitais não tem sido uma prática recorrente nas famílias, assim como assistir filmes legendados. Dessa forma, observa-se que o atual momento enfatiza contextos que evocam um determinado uso das Tecnologias Digitais de Informação e Comunicação (TDIC), em que as práticas existentes antes da pandemia tornaram-se mais intensivas e promoveram mudanças não apenas no suporte de leitura, mas nas formas de transmissão cultural.
QT luzearen sindromea, bat-bateko heriotzaren atzean
Authors: De Alba Iriarte Beñat
Published: December 2021

QT luzearen sindromea kanalopatia larria da. 2.500 pertsonatik bati eragiten dio, bereziki gazteei. Bihotzeko bentrikuluen zelulen birpolarizazio-fasearen luzatzea du ezaugarri eta, ondorioz, elektrokardiograman QT tartearen luzapena ageri da. Horrek gaixoei sinkopea eta fibrilazio bentrikularrak eragindako bat-bateko heriotza izateko arriskua handitzen die.Sindrome hau kirolarien bat-bateko heriotzaren arrazoietako bat da. Gaixo sintomatikoen edo elektrokardiograma patologikoa dutenen maneiua aski ezaguna da, baina azken urteotan gaixotasun hau eragiten duten hainbat mutazio genetiko deskribatu dira, oraindik adierazpen fenotipikorik ez duten zenbait pertsonatan. Gero eta hedatuago dagoen proba genetikoen erabilerak mutazio mota horien eramaile asko diagnostikatzea erraztu du.
Odoleko serumeko IgG4a eraginkortasun apaleko markagailua da IgG4arekin erlazionatutako gaixotasunak diagnostikatzeko garaian
Authors: Atin Carrion Maialen
Published: December 2021

Odolean IgG4 altua izateak (135-144  mg/dL) IgG4arekin erlazionatutako gaixotasuna egon zitekeela adierazi zuen % 87,2ko sentsibilitatearekin (% 95 KT, % 85,2-89,0) eta % 82,6ko espezifikotasunarekin (% 95 KT, % 81,6-83,6). Horren aurresate-balio positiboa, aurresate-balio negatiboa eta diagnostikorako odds ratioa (DOR) 6,48 (% 95 KT, 3,98-10,57), 0,14 (% 95 KT, 0,09-0,21) eta 45,15 (% 95 KT, 23,41-87,06) ziren, hurrenez hurren. Era berean kurba azpiko area 0,94 (0,92-0,96) zen.
МЕТОД ПРИЙНЯТТЯ РІШЕННЯ З ФОРМУВАННЯ ПОТОКІВ ЛІТАКІВ ДЛЯ ЗАХОДУ НА ПОСАДКУ З ВИКОРИСТАННЯМ НЕЧІТКИХ НЕЙРОМЕРЕЖЕВИХ ТЕХНОЛОГІЙ
Authors: Mаzhаrа I.
Published: December 2021

Розглядається метод прийняття рішення з формування потоків літаків для заходу на посадку з використанням нечітких нейромережевих технологій. Подано схему процесу управління повітряним рухом керівника польотів в зоні візуального контролю. Визначені основні схеми формування потоків літаків для заходу на посадку, сформована множина правил яка є початковою базою правил. для кожного прикладу, отриманого при формуванні навчальної вибірки за результатами прогнозування варіанту формування потоку літаків, визначаються нечіткі ступені приналежності заданих значень лінгвістичної змінної до відповідних FOU , кожному навчальному прикладу ставляться у відповідність ІНМТ2, нечіткі ступені приналежності до яких у відповідних значеннях лінгвістичних змінних є максимальними. Мета статті: удосконалення методу прийняття рішення з формування потоків літаків для заходу на посадку з використанням нечітких нейромережевих технологій
МАТЕМАТИЧНА МОДЕЛЬ ВІБРОГАСИТЕЛЯ
Authors: Lyutenko V. , Mastyukh V.
Published: December 2021

Одним із основних напрямів технічного прогресу в машинобудуванні являється ріст продуктивності і точності механічної обробки деталей, покращення якості поверхонь, що обробляються, котрі пов’язані з удосконаленням вібраційної стійкості обладнання. Вібрації обмежують підвищення режимів різання при оброблюванні деталей, погіршують шорсткість поверхонь, створюють наклеп верхніх шарів, при цьому суттєво знизують точність обробки і стійкість ріжучого інструменту. Виникнення коливань обумовлено зміною режимів різання, зовнішніми силами і зміною параметрів пружної системи верстат-пристосування-інструмент-деталь (ВПІД). Із великої кількості машинобудівного обладнання найбільш поширеними являються верстати для оброблювання тіл обертання, токарної і кругло-шліфувальної групи (більш ніж 40%). Тому значне підвищення точності і продуктивності токарної обробки нежорстких деталей типу тіл обертання являється актуальним напрямом в машинобудівній галузі, а розроблення способів захисту від вібрацій відноситься до основних найбільш важних науково-технічних задач. В даний час відомі різноманітні методи і способи зниження вібрацій. До них можна віднести: балансування і зрівноваження машин, зміна жорсткісних, демпфуючих і інерційних параметрів обладнання. Для перелічених способів характерна для кожного раціональна область застосування. Віброгасителі мають особливе призначення, так як вони можуть бути використані не тільки при проектуванні і створенні конструкції, а і при експлуатації для покращення незадовільних динамічних якостей обладнання, котрі виявлені при впровадженні в виробництво. Перевага віброгасителів також полягає в тому, що при значно малих затратах на їх створення і експлуатацію вони дають можливість отримати бажаний ефект зниження рівня вібрацій. При роботі віброгаситель формує силові дії, котрі передаються на об’єкт. Зміна вібраційного стану об’єкта при приєднанні динамічного гасителя здійснюється як шляхом перерозподілу коливальної енергії від гасителя до об’єкта, так і при допомозі розсіювання коливань. Перший спосіб здійснюється налагодженням пружно-інерційних властивостей системи об’єкт-гаситель на резонансну частоту. Другий спосіб оснований на підвищенні дисипативних властивостей системи шляхом приєднання до об’єкта додаткових спеціальних демпфуючих елементів. В такому випадку говорять про динамічний гаситель з тертям. В основу динамічних гасителів положено використання пасивних елементів (мас, пружин, демпферів) і активних, котрі мають власні джерела енергії. Для зниження вібрацій, що виникають при обробці тіл обертання, нами було спроектовано і досліджено віброгаситель
ВИЗНАЧЕННЯ ФАКТОРІВ, ЯКІ ЗНИЖУЮТЬ ПОКАЗНИКИ НАДІЙНОСТІ ДИСКІВ ГТД ТА РОЗРОБКА ЗАХОДІВ ПО ЇХ ПІДВИЩЕННЮ
Authors: Masyagin Valeriy , Hryhorenko Alina , Konokh Katya , Khakhalkina Oleksandra
Published: December 2021

У даній статі проведено аналіз основних факторів, які впливають на надійність дисків компресорів та турбін, такі як: проектувальні, конструктивно-технологічні та експлуатаційні. Провівши розрахунок на міцність диску турбіни високого тиску будуються графіки зміни напружень та визначають коефіцієнт місцевої статичної міцності по радіусу диску. За результатами досліджень, запропоновано заходи підвищення надійності дисків, а саме: визначено сучасну технологію під назвою «Бліск», яка дозволяє збільшити коефіцієнт запасу статичної міцності диску та температуру газу перед турбіною на 5-7% , що призводить до збільшення потужності та дозволяє збільшити частоту обертання ротора на 15-40%
THE CONSTRUCTIVE IMPLEMENTATION OF LIEBIG’S LAW OF THE MINIMUM IN THE PARADIGM OF SYNTHESIS OF A NEURAL NETWORK SUBJECT STATE CLASSIFIER
Authors: Alyoshin S. , Hаitan O. , Zyma O.
Published: December 2021

Liebig's law of the minimum is one of the fundamental laws in ecology, which states that the most significant factor for the organism is the factor that deviates most from its optimal value and at the same time most significantly limits the successful life of the organism, being the weakest link in the chain of its ecologic needs. Therefore it is very important to identify the weak link in the life of organisms while classifying and predicting ecologic conditions. However, taking into account ambiguity of the factor influence, compensation of the influence of some factors by others, as well as the synergistic effect of influencing the result, Liebig's law should be considered as a law operating under conditions of a high degree of uncertainty, which makes it difficult to apply it effectively in some cases. The purpose of the article is to find a deterministic relationship of input factors with an objective function (a set of indicators of the study subject state), which involves the synthesis of an ensemble of neural network models with forced learning on retrospective data examples, to ensure their adequacy, performance and accuracy, to create an algorithm for modifying the value of input factors for a given class the state of the study subject for a pragmatic, highly effective use of Liebig's law in practice. In the paper it is considered a technology for quantitative evaluation of the determining force of influencing factors on the organism state based on the synthesis of an ensemble of adequate models of the relationship between the space of input factors and the state of the study subject. A quantitative differential evaluation of the influence of input factors on the state of the subject was carried out; the adaptation of input factors to the objective state of the study subject was algorithmized. It expands the possibilities of practical application of the Liebig’s law of the minimum, both in the quantitative evaluation of problematic ecologic factors, and in their variations to achieve the required state of the subject. The invariance of the developed technology for the quantitative evaluation of the determining force of the input factors to the features of the subject area has been established, which makes it possible to extend the obtained results to the animal and plant world and emphasizes the universality of the provisions of Liebig's law
ВИРОБНИЧИЙ РИЗИК ДЛЯ БЕЗПЕКИ ПРАЦЮЮЧИХ НА ВІДКРИТОМУ ПОВІТРІ ВІД ТЕМПЕРАТУРНИХ УМОВ НАВКОЛИШНЬОГО СЕРЕДОВИЩА
Authors: Voloshkina E. , Kovalova A.
Published: December 2021

В роботі представлено дослідження щодо аналізу впливу температурних показників атмосферного повітря урбанізованих територій на показники забруднення первинними та вторинними елементами та вплив якісного стану повітря на значення виробничого ризику. Запропоновано алгоритм системної ієрархічної моделі оцінки і класифікації виробничого ризику для робітників, які працюють на відкритому повітрі. Представлені залежності між вологовмістом в повітрі, температурними показниками та індексом забруднення AQIPM2,5 в м. Києві за березень 2020року. Взаємовплив температурних та якісних показників атмосферного повітря на здоров’я працівників на відкритих виробничих майданчиках на даних 2016 року представлено на прикладі окремих автомобільних шляхопроводів м. Києва, як одного з самих спекотних років останнього десятиліття. Представлені середньомісячні значення індексу забруднення атмосферного повітря аерозольними частками РМ2,5мкм і виробничого ризику в залежності від вторинного формальдегідного забруднення внаслідок фотохімічних перетворень. Розроблена шкала класифікацій між кількісними показниками виробничого ризику та показниками забруднення атмосферного повітря. Ступінь небезпечності виробничого ризику по перевищенню концентрації найбільш небезпечного забруднювача може бути визначена даним підходом за референтним значенням окремого показника Результати роботи стануть в нагоді при розробці рекомендацій щодо захисту здоров’я працюючих в умовах поступового підвищення температурних показників, а також при розробці містобудівельних норм охорони праці на будівельних майданчиках
RESEARCH OF CONDITIONAL DIAGNOSTIC ALGORITHMS MANY SOURCE OBJECTS
Authors: Sakovych L. , Gnatiuk S. , Voloshko S. , Miroshnichenko Yu.
Published: December 2021

Without regard to the swift increase of reliability of element base of modern special communication means actual is a question of providing of their a fitness is to repair, of value of indexes of that regulated by leading documents. Considerable time of permanent repair of special communication means occupies the search of defective elements, that is why important enough improvement of the diagnostic providing. It is arrived at by the use of effective algorithms of searching activity of masters that abbreviate the necessary amount of verifications of the damaged apparatus. It is set that to 30 percent of refuses of special communication means conditioned by disrepairs their sources of secondary power supply, that behave to the class of many source objects. In the article with drawing on modern accomplishments of technical diagnostics and metrology, that was not taken into account before, research possible variants of construction of conditional diagnostic algorithms. Also research their indexes of quality dependin g on the structural features of object of diagnosticating and the brought results over of comparison. The terms of repressing choice of algorithms of search of defects are set on the criterion of a minimum of mean time of renewal, the order of decision of this task is formalized. The got results it is expedient to draw on during development of the diagnostic providing of perspective special communication means, and also and at the improvement of existing. Thus, taken off part of limitations that is used in the known methodologies, that allows to promote efficiency scientifically reasonable practically implemented recommendations in relation to time of proceeding in special communication means at the refuse of their sources of secondary power supply
“el-Tantûriyye” romanındaki kültürel ögelerin çevirisi üzerine bir inceleme
Authors: ALDYAB Ahmed , KETTANEH Tuğçe
Published: December 2021

Mısırlı yazar Radvȃ Ȃşûr, Arap edebiyatında tarihi romanın en ünlü temsilcilerindendir. Türkçede yayımlanan ilk eseri olan Tantûralı Kadın romanında mecbur bırakıldıkları sürgünün zorluklarıyla dolu yaşam öyküsü bir kadının gözünden anlatılırken, diğer taraftan da tarihe tanıklık söz konusudur. Filistin’de yaşananları 1948 yılı öncesinden başlayarak 2000’li yıllara kadar anlatan edebi dille yazılmış tarihi bir romandır. Sürgün, savaş, ölüm, sevda, hayat gibi kavramları barındıran eser, kültürel ögeler bakımından zengindir. Kültürel ögelerin çevirisi, erek dile aktarımı, kaynak dil kültürünün korunumu çeviri bilim alanında önemli bir yer tutar. Bu çalışmada, İngiliz çeviri bilimci Peter Newmark’ ın ‘‘A Textbook of Translation’’ kitabındaki kültürel ögelerin sınıflandırılması doğrultusunda Radvȃ Ȃşûr’un el-Tantûriyye romanındaki kültürel ögeler, kullanılan çeviri stratejileriyle tespit edilerek, çeviri analizleri çeviri bilim araştırmacısı Venuti’nin yerlileştirme (domestication) ve yabancılaştırma (foreignization) stratejilerine göre yapılmıştır. Yerlileştirme, erek kültürde anlaşılabilirlige, kabul görmeye yönelik bir stratejidir ve kültürlerarası fark önemli bir unsur değildir. Çeviri sürecinde kültürel ögeler değiştirilebilir, eklenebilir, çıkarılabilir. Yabancılaştırma stratejisinde ise; kaynak metindeki yabancı unsurlar korunur, kültürel farklılıklar erek metne yansıtılarak erek okur, yeni bir kültürle tanıştırılır. Bu stratejide; çeviri sürecinde dipnot kullanma, aktarım, açımlama yapma gibi uygulamalara başvurulabilir. Bu doğrultuda, erek dile aktarılan kültürel ögelerin çevirmen tarafından hangi stratejilerle aktarıldığı hakkında bilgiler verilmiştir. Ayrıca bu stratejilerin önemi, çevirilerin kaynak dil ve kültürünü ne ölçüde yansıttığı örneklerle birlikte açıklanmıştır.
Bir Tuva masalının Vladimir Y. Propp’un yapısal anlatı çözümleme yöntemine göre incelenmesi: “Ak-Sagış Kara-Sagış İyi Alışkı”
Authors: SARIKAYA AKSOY Tuğba
Published: December 2021

Bu çalışmada Tuva Türklerinin sihirli-olağanüstü masallar kategorisine giren Ak-Sagış Kara-Sagış İyi Alışkı “Ak Sagış Kara Sagış İki Kardeşler” masalı Vladimir Y. Propp’un yapısal anlatı çözümleme yöntemine göre incelenmiştir. Bu yöntem metin merkezli halkbilimi kuramlarının yapısal halkbilimi kuramı içinde yer almaktadır. V. Y. Propp 1928 yılında yayımladığı Morfologiya Skazki “Masalın Biçimbilimi veya Masalların Morfolojisi” adlı eserinde masalları yapı özelliklerine göre inceleyerek masallarda “sabit” ve “değişken” unsurlar olduğunu ortaya koymuştur. Ona göre masalların sabit unsurları şahısların meydana getirdikleri hareketler veya aksiyonlardır. Propp bunlara “işlev” adını verir. Masal kahramanlarının işlevlerinin birbirinin aynısı olduğunu söyler. Bu yüzden Propp, işlevlerin bir masal kahramanından başka bir masal kahramanına aktarıldığı sonucuna varmıştır (Çobanoğlu, 2012). Propp, masallarda 31 sabit unsur (işlev) olduğunu belirtir. Masallardaki değişken unsurlar ise isimleri ve görevleri değişen yedi şahıstan oluşmaktadır. Çalışma için belirlenen sihirli-olağanüstü bir Tuva masalının üç olay dizisi etrafında geliştiği görülmüştür. Bu masalda eksiklik, yaşlı kadın, hayvan, ağaç, su, ihanet, sayı, balbal, kötü ruh, çadır, yol, han, lama, fal bakma vb. motiflerin geçtiği belirlenmiştir. V. Y. Propp’un yöntemine göre yapılan incelemede Propp’un belirlediği işlevlerden yirmi tanesinin ortak olduğu tespit edilmiştir. Ayrıca üç olay dizisi içinde bazı geri dönüşler de mevcuttur. Bu durum Propp’un işlev sıralamasına uymamaktadır. Sonuçta bu masalın Propp yöntemiyle benzer ve farklı yönleri olduğunu söyleyebiliriz.
Facilitating Effective Sixth Form Independent Learning
Authors: Shenton Andrew K.
Published: December 2021

For young people who have opted to continue their education post-sixteen, it is difficult to overstate the importance of the independent learning which takes place in the Sixth Form. Typically, the balance between classroom teaching and private study shifts dramatically at this point and individuals who intend to go on to university find themselves having to put in place strategies that will stand them in good stead for the next stage of their academic lives, in addition to serving their current needs.

Facilitating Effective Sixth Form Independent Learning is a comprehensive guide for educators looking to support independent learning in the Sixth Form. It takes the reader on a step-by-step journey showing how an appropriate teaching programme may be set up and offers proven tools and strategies that can be adopted in the classroom. The book advises on how a worthwhile research question may be formulated and establishes the importance of teaching unifying methodologies, in addition to individual techniques, before various means of finding information are identified. It develops an approach to help students think systematically about the available options and considers methods for evaluating information and managing time. The book then addresses the construction of essays and reports and then guides readers through understanding and implementing the Information/Writing Interaction Model (IWIM). Further coverage includes strategies for countering plagiarism and numerous suggestions for promoting student reflection.

Rigorous yet accessible and featuring numerous practical examples, Facilitating Effective Sixth Form Independent Learning is an essential resource for educators working in a world where developing independent learning skills is not an option, but essential.
A Cohesive Approach in Identifying a Missed-pay of Carbonate Reservoir in a Brownfield
Authors: Lamis N. M.
Published: December 2021

L Field is a brownfield located in the South Sumatra Basin with numerous producing wells. Adjacent to this field, there is a large carbonate reservoir with a significant recovery factor. Carbonate is found in L Field but it was deposited in distal environment with different characters. In attempt to prolong the life of L Field, its carbonate reservoir is evaluated. An integration between geology, petrophysics, reservoir and production engineering works has been done to get comprehensive results. The evaluation was put into 2 categories, qualitative and quantitative methods. The qualitative method is done by geologist whom deals with well-by-well review, reservoir correlations, depositional environment interpretation according to regional context, and qualitative candidates scoring. The quantitative method is divided into petrophysical and production data analyses as well as well integrity. The final screening candidates are the result of both methods. Based on the core description from adjacent field, carbonate in L Field has 2 different zones, zone A and B. From the qualitative perception only, zone A can be categorized as non-reservoir, due to high gamma-ray reading. However, the solubility test confirms that the zone has high calcareous content. After final scoring, L-14 well has the highest score for zone A and L-15 for zone B. This Poster highlighted the importance of a cohesive approach among multi-disciplines works which can successfully identify missed pay potential to proving up reserves. As a result, a significant amount of volumetric has been calculated for carbonate in L Field. Due to the good solubility result of the formation with HCl, matrix acidizing stimulation is also prepared. To prove-up reserves in L Field initially, it is recommended to open zone A of L-14 and zone B of L-15. The workover will continue with the remaining wells which have lower scores contingent on both wells' results
Ciletuh Subduction, West Java - New Findings, New Problems: Regional Implications to Cretaceous-Paleogene Convergence of Sundaland Margin and Its Petroleum Geology
Authors: Satyana A. H.
Published: December 2021

Ciletuh, southwest Java has been well known as one of the places in Java where pre-Tertiary basement rocks are exposed (Verbeek and Fennema, 1896; Duyfjes, 1940; van Bemmelen, 1949; Sukamto, 1975). In plate tectonic point of view, Ciletuh has been known as place outcropping melange complex related to pre-Tertiary oceanic plate subduction (Thayyib et al., 1977). Ciletuh subduction regionally has been linked to the Cretaceous subduction zones of Luk Ulo/Karang Sambung (Central Java) and Meratus Mountains (South Kalimantan) (Hutchison, 1973; Asikin 1974; Hamilton, 1979). Ciletuh subduction however, has not been dated using metamorphic rocks formed in its subduction zone. Its link to Luk Ulo and Meratus subduction zone only based on the presence of melange, which also lacks of data Meanwhile, subduction zones of Luk Ulo and Meratus have been dated and analysed. We herewith present the results of new field studies and various analyses carried out in the last five years of the Ciletuh subduction complex. The indication of Cretaceous subduction has not found from the date measurement, Ciletuh shows Eocene related subduction. Most of the ophiolites were island-arc tholeiitic or island-arc basalt formed in supra-subduction zone. The overlying olistostrome deposits were younger than previously considered and lasted until early/middle Miocene. Some of the basaltic pillowed lava is considered as part of the ophiolite, while the ones at Gunung Badak is more likely a part of the early Miocene Jampang volcanism. Link of Ciletuh to Early Cretaceous subduction of Luk Ulo is not supported by geochronological data. The new knowledge of Ciletuh subduction implies the pre-Tertiary and Paleogene geology of Java, and petroleum prospectivities of the Paleogene objectives of southern West Java. New problems arise and need more field data and analyses to find out the answers.
Imaging of Subsurface Velocity Structure on Volcanic Area of South East Java: An Application of Passive Seismic Ambient Noise Tomography for Sub-Volcanic Hydrocarbon Exploration
Authors: Wardaya P.
Published: December 2021

Petroleum exploration in sub-volcanic area always poses an inevitable challenge. Active seismic exploration method fails to obtain reliable imaging of the sediment beneath volcanic formation due to massive attenuation. This issue has been a long-standing problem in onshore seismic activity in Indonesia, especially in areas where volcanic formations present above the sedimentary formation of interest. To address this issue, we propose an alternative method utilizing a passive seismic approach to obtain reliable subsurface information. This paper discusses our experience in employing ambient noise tomography to evaluate the sedimentary structure beneath the volcanic area in Southern Malang, East Java. The passive seismic network deploying 70 seismometers were installed in a relatively regular grid. With the maximum offset between two furthest stations was 44.5km, we can capture the maximum wavelength of 15 km which is associated with the minimum frequency as low as 0.08 Hz to be used in the inversion. In principle, the seismometers record the coherent seismic noise coming from the atmospheric activity, sea wave, or industrial activity in the surface. Cross correlation between signal received in each station and their continuous stacking yields useful signals to reveal the dispersion curve which can produce the subsurface velocity profile through an inversion technique. From the inversion result we obtain the subsurface s-wave velocity structure down to a depth of 6 km. Higher s-wave velocity structure on the shallow depth in the northern area of the survey confirms the presence of the thick volcanic sediment situated near volcanic mountain. Towards the southern area we observe a slower s-wave velocity profile that indicates the thinning of volcanic formation. Although the method has successfully delivered a reliable s-wave structure over an entire survey area, its resolution is limited due to large spacing between stations. We suggest deploying denser stations to improve the velocity resolution.
Detailed Lithofacies and Architectural Facies Analyses on Mixed Carbonate-Siliciclastic Clastic Shoreline Depositional Environment of the Cibulakan Formation in Cipamingkis River, Jonggol, Bogor, West Java
Authors: Edwin E.
Published: December 2021

Cibulakan Formation as one of the prolific hydrocarbon-bearing intervals has become an interesting study object for many researchers. The continuous outcrop of the Cibulakan Formation in the Cipamingkis River comprises claystone, sandstone, and subordinate limestone of grainstone, packstone, and wackestone facies. The outcrop should be able to give a clearer vertical and spatial variation of sandstone and limestone geometry compared to the conventional core alone. Field observations followed by measuring the section is conducted to distinguish lithofacies and to create a stratigraphic profile from the chosen interval. Samples and thin sections from sandstone and limestone lithofacies are observed further to determine fragment type variation, matrix, cement, texture, and porosity types qualitatively. Fourteen (14) lithofacies have been recognized from the observation, i.e., Slumped Sandstone (A1), Claystone (A2), Slightly-bioturbated Sandstone (B1), Cross-laminated Sandstone (B2), Parallel-laminated Siltstone (B3), Calcareous Claystone (B4), Moderately-bioturbated Sandstone (C1), Hummocky Cross-stratified Sandstone (C2), Skeletal – Coral clast Wackestone (C3), Skeletal-clast Packstone (C4), Coralline Foraminiferal Boundstone (C5), Low-angle Planar Cross-bedded Sandstone (D1), Intensely-bioturbated Sandstone (D2), and Trough Cross-bedded Sandstone (D3). There are four architectural facies in the research interval and each of them is composed of different and specific lithofacies. An ideal parasequence is composed of all Architectural Facies namely : (A) Offshore-Transition (B) Lower Shoreface (C) Upper Shoreface with the whole thickness range between 15 to 25 m and the parasequence shows thickening upward succession. The detailed information about the lithofacies and architectural facies hopefully will provide a better understanding of the facies modelling of the mixed carbonate-siliciclastic depositional setting, new insights for parasequence recognition in clastic shoreline depositional environment and become a reference for other areas lacking in core data and/or outcrop analogue.
New Finding on Oil Distribution in Jabung Block and its Implication to Pre-Talang Akar Formation (Pre-TAF) Play in the Block and South Sumatera Basin Respectively
Authors: Syam B.
Published: December 2021

The kerogen types at the origin of oil in the Jabung block are predominantly type-II and III based on Rock Eval pyrolysis, and are interpreted to originate from the fluvio-deltaic shale & coal of the Oligocene Talang Akar Formation (TAF). However, several outlying oils have been found in the wells NB-1 & NB-4 of the North Betara Field and indicate that kerogen type-I of lacustrine origin may also be in play. This scenario is further suggested by biomarker and carbon isotope ratios. In this paper, we infer that those oils are sourced from the Eocene Pre-Talang Akar Formation (Pre-TAF) section. This opens new exploration prospectivity for the Jabung area. Our analysis of selected petroleum system elements suggests that the lacustrine oils encountered in NB-1 & NB-4 originate from Eocene Pre-TAF source rock in deeper part and migrated into the younger Oligocene TAF sandstone as a sub-surface leak, or “a subsurface oil seep”. Oil migrated by fault vertically and then spread laterally to fill traps in TAF. A widespread unconformity at top pre-TAF may have provided an excellent seal at the origin a pre-TAF confined petroleum system, prevented the lacustrine oil from entering all the fields/structures in the Jabung block, This could explain the minimal distribution of the lacustrine oil at TAF level and above in the Jabung area. The Pre-TAF is associated with the early syn-rift phase in South Sumatra Basin. It also refers as Lahat or Lemat Formation in the basin and is a widely under-explored play, evidenced by the low reserve magnitude of fewer than 100 MMBOE. The distribution of Pre-TAF as source and reservoir rock is restricted to syn-rift depocenter area. From our latest interpretation, Pre-TAF in NEB Field, observed clearly from the 3D seismic data, is potentially well developed and of good quality, although no wells have penetrated the interval to date
Detailed Lithological Study Leads to New Insights about the Pre-Tertiary and Tertiary Reservoirs in the Suban Gas Field, South Sumatra Basin, Indonesia
Authors: Permana B. R.
Published: December 2021

The basement igneous intrusive rock lithology in the South Sumatra Basin was previously suggested to be a solely granitic rock. It is also a common knowledge that the Miocene Baturaja Formation carbonates are one of the prolific reservoirs. However, after a comprehensive reservoir recharacterization had been conducted in the Suban Field, new insights regarding these two rock types were revealed. The basement lithology consists of a more complex metasediment containing Andesite, Granodiorite, and Gabbro and an Oligocene-age carbonate reservoir was also identified. The reservoir recharacterization was carried out by conducting an integrated analysis to reconstruct the complex reservoir configuration utilizing seismic data, core, cuttings, absolute age dating, and biostratigraphy. Seismic data was utilized as a general framework for reservoir architecture due to the resolution that allowed to describe the reservoir configuration in detail. Core and cuttings were used to identify the reservoir facies, and absolute age dating along with biostratigraphy were used to construct geochronology for each reservoir facies. Finally, well to well correlation was performed to reconstruct complex reservoir configurations. The result of the study indicated that the reservoir age in the field can be divided into two parts, pre-Tertiary (PRT) basement and Tertiary sediments. The PRT of Suban Field comprises several types of crystalline rock that will have different respond to the stresses and the Tertiary section that consists of clastic and several carbonate facies of different ages that vary across the study area. This study offers new insights regarding the basement configuration and the emerging carbonate play. Different igneous rock compositions reflect a complex magmatism process in South Sumatra. Oligocene carbonates that were identified in Suban could open the opportunity to discover a hydrocarbon-bearing Oligocene carbonate play in the South Sumatra Basin.
Moving Asian American History from the Margins to the Middle in Elementary Social Studies Classrooms
Authors: Rodriguez Noreen
Published: December 2021

This article describes how three Asian American elementary teachers in Texas reflected on the absence of Asian American histories in their own educational experiences, which later inspired them to teach Asian American histories in their classrooms. The teachers’ lessons about Asian American history required them to first (re)define the term Asian American with their students, and the teachers also (re)defined what it meant to be American. Ultimately, they promoted cultural citizenship, which is more inclusive and critical than traditional forms of citizenship that are defined by individual acts like voting and following rules. Cultural citizenship promotes difference as a resource; emphasizes the need to respect and humanize others; includes the voices, experiences, and perspectives of People of Color; and emphasizes human rights and agency. Asian American children’s literature was an essential tool in disrupting exclusionary histories and notions of citizenship as equal to whiteness, and the teachers' work demonstrates how educators can move Asian Americans from the margins to the middle of social studies instruction to support better teaching of U.S. history and democracy.