bluuebunny/crossref_metadata_2025_split huggingface dataset:
Delumping Strategy to Infer Lubrication Reaction Pathways in Internal Combustion Engines
Authors: Domínguez-García S. , Béjar-Gómez L. , Huirache-Acuna R. , Lara-Romero J. , Maya-Yescas R. 
Published: December 2019

Abstract
Lubricant reactions in internal combustion engines follow complex reaction pathways, in which oil (hydrocarbons) and additives form protecting films (known as tribofilms) on the surfaces of the cylinder-piston couple. Up-to-date there is not a fundamental model useful to describe the chemistry involved in formation of these tribofilms, and degradation of oils and additives as result of working time of the engine. One of the main problems associated is the impossible measuring of the actual phenomena inside the engine, at working conditions. In order to model formation of tribofilms, starting by lumping two main groups of lubricating molecules, anti-shear and anti-wear, the lumped kinetics model for degradation products was solved, based on actual data collected in commercial engine workshops. Later these two-lump reaction schemes were delumped into two new systems, each one consisting of three lumps, in order to infer lubricant reaction pathways that form tribofilms and degrade lubricants. Distribution of anti-shear and anti-wear lubricants in tribofilms was predicted by simulation of these two delumped schemes.
Electrochemical Mechanism for the Preparation of Fe-Si Alloys by Melts Electrodeposition
Authors: Li Hui , Wang Dongbin , Liang Jing-long , Yan Hong-yan , Cai Zong-ying , Reddy Ramana G. 
Published: December 2019

Abstract
The melts dissolution characteristics and reaction process during the preparation of Fe-Si alloys by the melts electrochemical method were studied. The thermodynamic calculations and experimental results showed that the solubility of SiO2 in KCl-NaCl-NaF melts was 0.24 mas% at 1073 K. The cyclic voltammetry data showed that the reduction of SiO2 on a Pt electrode was a one-step electron process; when SiO2 accounted for 0.24 mas% of the NaCl-KCl-NaF melts, the Fe-Si alloy was prepared by electrodeposition at 1073 K. When the deposition time was 30 min, Fe3Si was formed.
Intraventricular pressure in non-communicating hydrocephalus patients before endoscopic third ventriculostomy
Authors: Tiefenthaler Werner , Burtscher Johannes , Moser Patrizia L. , Lorenz Ingo H. , Kolbitsch Christian 
Published: December 2019

Abstract

Background
In patients with non-communicating hydrocephalus impairment of cerebral compliance can occur pre- but also intraoperatively.

Methodology
In such patients (n = 6) undergoing endoscopic third ventriculostomy (ETV), the present study aimed to investigate the effect of ETCO2 (e.g 40 mmHg and 60 mmHg) and positive end-expiratory pressure (PEEP) (e.g. 6 cm and 12 cm H2O) on intraventricular pressure (IVP).

Findings
Before but not after ETV, hypercapnia in contrast to PEEP increased IVP

(before ETV
(PEEP-6/ ETCO2-40: 2.6 ± 2.4 mmHg) vs. (PEEP-6/ ETCO2-60: 12 ± 6.4 mmHg*); (PEEP-12/ ETCO2-40: 4.2 ± 4.1 mmHg) vs. (PEEP-12/ ETCO2-60: 13.7 ± 7.6 mmHg*), * significant, P ≤ 0.05;

after ETV
(PEEP-6/ ETCO2-40: 2.0 ± 1.2 mmHg) vs. (PEEP-6/ ETCO2-60: 4.4 ± 3.1 mmHg); (PEEP-12/ ETCO2-40: 1.6 ± 1.3 mmHg) vs. (PEEP-12/ ETCO2-60: 6.6 ± 2.6 mmHg), * significant, P ≤ 0.05).

Conclusion
Patients with non-communicating hydrocephalus showed that hypercapnia but not PEEP increases significantly IVP before but not after ETV.
Possibilities of Pressure Die Casting of Iron Alloys
Authors: Ružbarský Juraj , Sitko Jacek 
Published: December 2019

Abstract
The current trends of production of casts are directed towards production of components disposing of higher accuracy, increased quality of surface and homogenous structure. In case of a thin-walled cast the development of speed of pressing and of pressure was observed inside the mould cavity during pressure die casting of ferrous alloys. In case of die casting of ferrous alloys the attention was paid to life service of a pressing piston and of a filling chamber. The optimal temperature of the steel casting ranges from 1600 to 1750°C and optimal mould temperature ranged from 220 to 260°C. The residues having occurred in gates reached the hardness of 38 HRC and in case of casts the value was of 45 HRC. Influence of acting of resistance pressure on the thin-walled casts only minimally. With the increasing resistance pressure the structure becomes more fine-grained and along with the increasing thickness of the wall the influence of the resistance pressure increases as well. Technology of pressure die casting of iron alloys can be compared with the pressure die casting technology of aluminium alloys. As standard, for pressure die casting the cast irons with carbon content of lower than 3% are recommended.
Properties Prediction of Linear Block-Polyurethanes Based on the Mixtures of Simple Oligoethers
Authors: Anisimov Volodymyr Mykolaovych , Anisimov Volodymyr Volodymyrovych , Krenicky Tibor 
Published: December 2019

Abstract
Polyurethanes are materials usable in wide spectrum of applications. This article is aimed at the properties tailoring of selected polymers by an alteration in initial materials. To achieve that goal, we proposed form the polyurethane matrix by mixing materials that have a different ratio of the initial components. Mathematical model has been developed that describes relationship of structure and strength, deformation, rheological and tribotechnical characteristics of linear block-polyurethanes based on oligoether blends. Oligoethers blend samples were obtained by injection moulding on an automatic thermoplastication machine with varying proportions of the starting components over the whole concentration range. A significant change of properties over the whole concentration range was observed and compositions with unique combination of characteristics have been determined. Obtained dependencies allow to predict the composition of the binary mixture with a tailored level of strength, deformation, rheological and tribotechnical characteristics. The obtained results are fully consistent with the practical experience of processing and exploitation of initial polyurethanes.
A weave of symbolic violence: dominance and complicity in sociolinguistic research on multilingualism
Authors: Ganuza Natalia , Karlander David , Salö Linus 
Published: December 2019

AbstractThis paper discusses symbolic violence in sociolinguistic research on multilingualism. It revisits an archived recording of a group discussion between four boys about their chances of having sex with a female researcher. The data is rife with symbolic violence. Most obviously, the conversation enacted a heterosexist form of symbolic violence. This was, however, not the only direction in which violence was exerted. As argued by (Bourdieu & Wacquant. 1992.An invitation to reflexive sociology. Cambridge: Polity), symbolic violence involves two fundamental elements – domination and complicity. In the case at hand, the boys’ sexist banter conformed to dominant expectations about their linguistic behavior, imbued in the research event. This is symbolic complicity of the kind that the Bourdieusian notion foresees. Yet another subordination to the dominant vision occurred when the researchers captured the conversation on tape, but decided to exempt it from publication. Here, we argue that giving deepened attention to sociolinguists’ own run-ins with symbolic violence during research is valuable, because it provides an opportunity to reflexively consider the social conditions of the research practices, in relation to the data produced and analyzed. Ultimately, this reflexive exercise may help sociolinguists sharpen their tools for understanding the give and take of dominance and complicity unfolding in their data.
The crystal structure of trans-carbonyl-(diphenylcyclohexyl-phosphine-κP)iodidomethyl-(2-oxopyridin-1(2H)-olato-κ2
O,O′)rhodium(III), C25H28INO3PRh
Authors: Elmakki Mohammed A. , Alexander Orbett T. , Roodt Andreas 
Published: December 2019

Abstract
C25H28INO3PRh, monoclinic, P21/c (no. 14), a = 11.339(4) Å, b = 9.887(5) Å, c = 23.069(9) Å, β = 91.125(5)°, Z = 4, V = 2585.7(19) Å3, R
gt(F) = 0.0463, wR
ref(F
2) = 0.1093, T = 293(2) K.
The crystal structure of catena-poly[(E)-2-(((5-((trimethylstannyl)thio)-1,3,4-thiadiazol-2-yl)imino)methyl)phenol], C12H15N3OS2Sn
Authors: Sun Junshan 
Published: December 2019

Abstract
C12H15N3OS2Sn, orthorhombic, Pbca (no. 61), a = 13.101(6) Å, b = 11.151(5) Å, c = 20.855(10) Å, V = 3047(2) Å3, Z = 8, R
gt(F) = 0.0440, wR
ref(F
2) = 0.1560, T = 298(2) K.
Crystal structure of 7-(2-{4-[(4-bromophenyl)methyl]piperazin-1-yl}ethoxy)-2H-chromen-2-one, C22H23BrN2O3
Authors: Joubert Jacques , Foka Germaine B. 
Published: December 2019

Abstract
C22H23BrN2O3, monoclinic, P21/c (no. 14), a = 5.9023(9) Å, b = 14.554(2) Å, c = 22.801(4) Å, β = 90.801(2)°, V = 1958.5(5) Å3, Z = 4, R
gt(F) = 0.0388, wR
ref(F
2) = 0.0961, T = 100(2) K.
Crystal structure of (E)-N′-((4-aminophenyl)sulfonyl)-N,N-dimethylformimidamide, C9H13N3O2S
Authors: Abdel-Aziz Alaa A.-M. , El-Azab Adel S. , Ghabbour Hazem A. , Obaidullaha Ahmad J. 
Published: December 2019

Abstract
C9H13N3O2S, monoclinic, P21/c (no. 14), a = 8.0984(4) Å, b = 17.3203(10) Å, c = 9.6802(4) Å, β = 124.031(3)°, V = 1125.26(10) Å3, Z = 4, R
gt(F) = 0.0504, wR
ref(F
2) = 0.1275, T = 293(2) K.
Recent progress in shape memory polymer composites: methods, properties, applications and prospects
Authors: Lei Ming , Chen Zhen , Lu Haibao , Yu Kai 
Published: December 2019

AbstractShape memory polymers (SMPs) can be programmed to a temporary shape, and then recover its original shape by applying environmental stimuli when needed. To expands the application space of SMPs, the shape memory polymer composites (SMPCs) were fabricated either to improve the mechanical properties, or to incorporate more stimulus methods. With the deepening of research, the filler arrangement can also be used to reshape the composites from a two dimensional sheet to a three dimensional structure by a strain mismatch. Recently, SMPCs show more and more interesting behaviors. To gain systematic understanding, we briefly review the recent progress and summarize the challenges in SMPCs. We focus on the reinforcement methods and the composite properties. To look to the future, we review the bonding points with the advanced manufacturing technology and their potential applications.
The Schengen Border and the Criminalization of Migration in Slovenia
Authors: Bajt Veronika 
Published: December 2019

Abstract
Detention, expulsion and deterrence have become the predominant policy response to migration. It is reported that it is becoming increasingly difficult even to claim asylum in the EU. All states restrict border access, but immigration is criminalized most stringently in cases of asylum. Noting how many national jurisdictions are adopting ever more restrictive immigration control systems, the author discusses the recent criminalization of migration in Slovenia. The country’s former internal Yugoslav boundary became the European Union’s Schengen border in 2007, and what was a permeable demarcation between Slovenia and Croatia up to 1991 has now become a hard border, subject to securitization and surveillance. The author explores the policy-making surrounding the symbolic construction of Slovenia as an EU member state which has been charged with the role of Schengen border defender. She shows how this shift has become apparent in Slovenia’s immigration management policies, administrative practices, and political discourse.
Administrative Legacy and the River Mura Border Dispute between Slovenia and Croatia
Authors: Zajc Marko 
Published: December 2019

Abstract
Set at the intersection between political history and environmental history, this article shows the significance of administrative legacy and natural dynamics of rivers in the landscape for creating (and solving) border disputes. In 2006, Slovenia and Croatia engaged in such a dispute regarding the exact course of the border near the River Mura in the vicinity of the villages of Hotiza (Slovenia) and Sv. Martin na Muri (Croatia). After giving an overview of the Slovenian-Croatian border disputes between 1992 and 2019, the author analyses the border dispute around the River Mura. He then shows how the history of the river’s regulations, of the Habsburg and Yugoslav land survey activities, as well as of the previous border disputes on the river are entangled in the current dispute.
Tourism Urbanization in Croatia. The Cases of Poreč in Istria and Makarska in Dalmatia
Authors: Kranjčević Jasenka , Hajdinjak Sanja 
Published: December 2019

Abstract
Taking Croatia as a case in point, the authors compare the influence of spatial planning on tourism urbanization. To understand how tourism and spatial planning have interacted on a subnational level, two tourism centres on the Adriatic coast, Poreč in Istria and Makarska in Dalmatia, were chosen as case studies. The authors argue that while tourism-driven urbanization during the socialist era favoured the development of hotels paired with quality communal infrastructure and public facilities, the subsequent socio-economic transformation has oriented tourism investments towards private profit in ways that have often led to the neglect of public interest and facilities. The two chosen cases represent different paths, however. In the last thirty years, Makarska has fallen prey to what has come to be called apartmanizacija (apartmentization)—an usurpation of valuable coastal space through the uncontrolled construction of private apartments. Poreč, on the other hand, has maintained its well-planned space by carefully rebuilding and upgrading its hotel capacities.
Kritische Rohstoffe – Die Achillesverse der USA im Wettstreit mit China
Authors: Schmid Marc 
Published: December 2019

Abstract
The confrontation between the US and China in the current trade dispute is one of the first clashes between the established and the emerging world power. This contibution examines the special role of critical raw materials in the rivalry of the two countries. The analysis reveals the reliance of the United States on the supply of critical raw materials from China, which is a severe weakness of the US economy and military. The dependency leads to supply risks, undermines the American position in the conflict between the two countries and is an Achilles’ heel that makes the US economy vulnerable. US politics seems to be aware of the risk, but their measures are not sufficient in order to reduce the supply risks and dependency associated with critical raw materials from China. A comprehensive and long-term oriented raw material strategy is required.
Autonomes Fahren statt Stop and Go: Vorschläge zur effektiven Gestaltung der deutschen Kurzarbeit
Authors: Balleer Almut , Gehrke Britta , Hochmuth Brigitte , Merkl Christian 
Published: December 2019

Abstract
This article argues that short-time work stabilized employment in Germany substantially during the Great Recession in 2008/09. The labor market instrument acted in timely manner, as it was used in a rule-based fashion. In addition, discretionary extensions were effective due to their interaction with the business cycle. To ensure that short-time work will be effective in the future, this article proposes an automatic facilitation of the access to short-time work in severe recessions. This reduces the likelihood of a too extensive use at the wrong point in time as well as structural instead of cyclical interventions.
GAME SITUATION AS A MEANS OF FORMING COMMUNICATIVE COMPETENCES IN STUDENTS
Authors: Topcu Iskender 
Published: December 2019

The article analyzes the role of gaming situations in the process of forming communicative competences in students. A traditional approach to learning is not always justifiable in a modern comprehensive school setting, as it does not adequately provide for intensive acquisition of knowledge.
The use of the game situation system permits effective shaping, improving and developing the skills and abilities for all types of language activities. The game exercises, when used systematically, help to model the conditions of real communication in the learning process, which in turn leads to an increased level of motivation to learn a foreign language.
The situation as a relationship system does not appear arbitrarily. Students can be provided with specific situational positions, so that the situation will arise and function on their basis, thus permitting to plan the necessary for controlled learning situations in advance. The situation is a universal form of the communication process functioning that exists as an integrative dynamic system of social status, role, activity and moral relationships between the subjects of communication, reflected in their minds and arising from the interaction of their situational positions.
In the context of our study, we have defined game situations during foreign language lessons as an active type of educational activity aimed at simulation modeling the systems, processes, and phenomena being studied.
Game exercises with an element of competition provide motivation for learning and speech activities due to participation in game activities. Game situations with a role-based component contribute to enhancing motivation of student participation in foreign language communication in the classroom and formation of students’ communication skills. The game situation is the set of tasks that include specially designed learning situations and communicative dialogues that contribute to the design of the process of development of the communicative potential of an individual student.
НАЦІОНАЛЬНО-КУЛЬТУРНИЙ КОМПОНЕНТ ЗМІСТУ НАВЧАННЯ ЛІТЕРАТУРНОГО ЧИТАННЯ В ШКОЛАХ НАЦІОНАЛЬНИХ МЕНШИН
Authors: Bohdanets-Biloskalenko Natalia 
Published: December 2019

У сучасних реаліях суспільного, культурно-освітнього простору України важливо формувати у дітей національну свідомість, почуття патріотизму за державу, в якій живуть. Це є одним із провідних завдань виховання дітей і молоді, оскільки забезпечує плекання громадян-патріотів своєї країни, здатних захищати її незалежність та цілісність. Сучасна школа відіграє важливу роль у становленні особистості, здатної брати активну участь в усіх сферах соціокультурного життя країни.
У статті обґрунтовано важливість добору текстів художньої літератури на національно-та соціокультурних засадах в підручниках з літературного читання для шкіл з мовою навчання національних меншин. Запропоновано аналіз існуючих підручників з літературного читання для шкіл національних меншин.
Автором визначено, що існує чимало шляхів засвоєння культурного досвіду українського народу. Проте саме художнє слово має неабиякий вплив на малого читача. Через вчинки героїв, історичні, народознавчі, природничі, пізнавальні тексти відбувається знайомство з культурою народу, в якій проживають представники різних національних меншин.
У результаті аналізу і синтезу різних джерел автор стверджує, що твори з національно-культурним змістом відіграють важливу роль у формуванні свідомих громадян своєї держави. А тому підручники з літературного читання для молодших школярів з навчанням мовами національних меншин обо’язково мають складатися у переважній більшості саме з таких творів. У такому випадку мета формування різнобічно розвиненої, національно свідомої, духовно багатої, творчої особистості, здатної до самостійного здобування нових знань, націленої на саморозвиток і реалізацію себе в суспільстві, буде досягнута.
ПЕДАГОГІЧНІ УМОВИ ПІДГОТОВКИ МАЙБУТНІХ УЧИТЕЛІВ ДО МОДЕЛЮВАННЯ УРОКУ В КОНТЕКСТІ ВАРІАТИВНОСТІ ПОЧАТКОВОЇ ОСВІТИ
Authors: Nesterenko Marina 
Published: December 2019

У статті визначено та теоретично обґрунтовані педагогічні умови, які забезпечують ефективність професійної підготовки майбутніх учителів до моделювання уроків в умовах варіативності початкової освіти. Такими в дослідженні виокремлені: організація суб’єкт-суб’єктної взаємодії учасників освітнього процесу, орієнтація викладача на впровадження технології контекстного навчання, активізація рефлексивної позиції майбутніх учителів початкової школи.
Розкрито сутність організації суб’єкт-суб’єктної взаємодії учасників освітнього процесу в ЗВО, що забезпечує перетворення студентів з пасивних споживачів знань на активних їх здобувачів, дослідників, співучасників. Це є особливо цінним для їх підготовки до реалізації Концепції Нової української школи, де пріоритетною визначено педагогіку партнерства.
У роботі проаналізовано ефективність орієнтації викладача на впровадження технології контекстного навчання в формуванні досвіду професійних дій моделювання уроку майбутніх учителів початкової школи, використання активних методів навчання, заснованих на принципах проблемності, а саме лекцій контекстного типу (лекція-діалог контекстного типу, лекція-прес-конференція контекстного типу тощо). інтерактивних методів навчання.
Також розглянуто умову активізації рефлексивної позиції студентів, що забезпечує оволодіння ними навичками конструктивного аналізу якості реалізації власних педагогічних задумів і спрямовує на постійне самовдосконалення.
Determinantes sociais de saúde e óbito por câncer oral em uma unidade de alta complexidade em oncologia de um município da Bahia
Authors: Amorim Marília de Matos , Lisboa Lidiane de Jesus , Conceição Sarah dos Santos , De Almeida Tatiana Frederico de Almeida , Freitas Valéria Souza 
Published: December 2019

INTRODUÇÃO: Os determinantes sociais podem refletir na ocorrência, prognóstico e mortalidade do câncer oral. OBJETIVO: Analisar as principais características sociodemográficas e hábitos de vida, assim como a relação com o óbito por câncer oral em uma Unidade de Alta Complexidade em Oncologia no município de Feira de Santana, Bahia, no período de 2010 a 2016. MÉTODOS E MATERIAIS: Estudo transversal realizado através da revisão de prontuários clínicos, seguida de uma análise descritiva das principais variáveis e análise bivariada entre as covariáveis consideradas determinantes sociais e o óbito pela doença. Todas as análises foram realizadas com o programa SPSS 22 e Stata 14.0. RESULTADOS: Foram diagnosticados 282 casos de carcinomas de células escamosas, na maioria em idosos (87,6%), do sexo masculino (79,6%), de origem urbana, que residiam em municípios de grande e médio porte, negros e pardos, casados, com baixa escolaridade, com ocupação, tabagistas (89,6%) e etilistas (85,0%). As lesões estavam localizadas principalmente na região de língua (37,9%), eram moderadamente diferenciadas (48,9%), diagnosticados em estádios avançados (III e IV) (84,7%), tratados em sua maioria com quimioterapia e radioterapia (34,3%) e 35,7% dos casos foram a óbito. A variável raça/cor apresentou significância estatística com o óbito pela doença (p = 0,006). CONCLUSÃO: Os resultados do presente estudo revelaram que dentre as covariáveis sociodemográficas e de hábitos de vida a raça/cor apresentou significância com relação ao óbito, indicando um pior prognóstico relacionado a pacientes negros e pardos.