bluuebunny/crossref_metadata_2025_split huggingface dataset:
Explicit Constants in Poincaré-Type Inequalities for Simplicial Domains and Application
to A Posteriori Estimates
Authors: Matculevich Svetlana , Repin Sergey 
Published: January 2016

Abstract
The paper is concerned with sharp estimates of constants in the classical Poincaré
inequalities and Poincaré-type inequalities for functions with zero mean values in a
simplicial domain or on a part of the boundary. These estimates are important for
quantitative analysis of problems generated by differential equations where numerical
approximations are typically constructed with the help of simplicial meshes. We suggest
easily computable relations that provide sharp bounds of the respective constants and
compare these results with analytical estimates (if such estimates are known). In the
last section, we discuss possible applications and derive a computable majorant of the
difference between the exact solution of a boundary value problem and an arbitrary
finite dimensional approximation defined on a simplicial mesh.
Looking back: A study of (ad-hoc) family interpreters
Authors: Angelelli Claudia Viviana 
Published: January 2016

AbstractChild-brokering (MediAzioni 2010) lies on the continuum of ad-hoc translation/interpreting. Using various field-specific lenses, from educational linguistics, cognitive psychology, developmental psychology, communication, and translation/interpreting studies, the case of bilingual youngsters and children who have interpreted for their families and immediate communities has been the focus of different studies (e.g. Bialystock & Hakuta 1999; Borrero 2006; Cline, Crafter and Prokopiou; Orellana 2003, Valdés, Chavez and Angelelli et al. 2000, Valdés, Chavez, Angelelli 2003) with different linguistic groups of various ages in different parts of the world. Focusing on Latinos who live on the US/Mexico border and using a mixed paradigm, in this study we analyze the ways in which Spanish/English bilinguals perceive, discuss and characterize their experiences as they continue to broker communication for their families and immediate communities. We focus on youngsters’ perceived agency and explanations of the relationship between child-language brokering and academic achievement. The findings reported here are part of a larger study that includes the adaptation of a valid and reliable instrument to measure bilingual youngsters’ perceptions about their role (Angelelli 2014 and 2015), its administration and results, and their recall during interviews. Since most/many of the public-service/community interpreters of today were interpreters in their late childhood and adolescence, understanding their life experiences and perceptions of their roles as family language brokers is important for interpreter educators (Angelelli 2010b). In addition, research on bilingual youngsters and children brokering communication for adults allows us to problematize the constructs of language access and language policies of the societies these bilinguals inhabit (Angelelli 2010a). The results have theoretical and practical implications for current conceptualizations of multilingual societies, border areas, community interpreting (interpreting in public services) and for teaching and testing of interpreters.
Litterfall and growth dynamics relationship with the meteorological variability in three forests in the Montseny natural park
Authors: Bou Jordi , Caritat Antònia , Vilar Lluís 
Published: January 2016

Abstract
We assessed the influence of some environmental conditions (temperature and rainfall) on the litterfall and BAI (basal area increment), in three close forests in the Montseny massif (NE part of the Iberian peninsula, Spain). Two of them are composed of deciduous species Fagus sylvatica and Quercus petraea, and the other one is a Mediterranean evergreen species, Quercus ilex. We have collected monthly data about litterfall and radial growth since 2007. For each forest there are tree plots, with litterfall traps and band dendrometers. This data has been related with the meteorological parameters of meteorological station closed to the study area. Our results show that F. sylvatica recorded the biggest drop in annual litterfall (6 Mg·ha−1·year−1), followed by Q. ilex (4.34 Mg·ha−1·year−1) and Quercus petraea (4.4 Mg·ha−1·year−1) and that all the values were similar to those observed in other forests and mountains with the same state of maturity. Regarding the litterfall, the investigation found a decline in the leaves fall in deciduous trees in years with hot summers. In addition, these warm summers produce a decline in the F. sylvatica BAI, but not in Q. petraea. Concerning growth, we found that Q. petraea increases the BAI on the study period while F. sylvatica does not. In conclusion, we believe that in the future Q. petraea will be more tolerant to the warm conditions than F. sylvatica, making the former a possible replacement of the second species.
Wyznaczenie stałych współczynników w ogólnym równaniu filtracji grawitacyjnej dla zawiesin węglowych
Authors: Piecuch Tadeusz , Czapiewski Paweł , Piekarski Jacek 
Published: January 2016

Streszczenie
W powyższej publikacji, opisując badania o charakterze podstawowym, zaprezentowano jeden ze sposobów wyznaczenia stałych współczynników w filtracji grawitacyjnej, występujących w ogólnym równaniu filtracji (Piecuch 2009, 2010).
Wykonano badania laboratoryjne dotyczące filtracji grawitacyjnej, stosując jako zmienne: objętość nadawy (1 dm3; 1,5 dm3; 2 dm3), stopień jej zagęszczenia (10 g/dm3, 20 g/dm3, 30 g/dm3, 40 g/dm3) oraz napór średni słupa cieczy. Jako zanieczyszczenie nadawy użyto węgla kamiennego o klasie ziarnowej zawartej w granicach od 0,315 do 0,5 mm, która była większa od średnicy oczek na siatce filtracyjnej. Przy tak modelowanym doświadczeniu zagęszczenie filtratu było równe zero. Jest to ważne dla przeniesienia badań o charakterze podstawowym na badania o charakterze aplikacyjnym.
Na podstawie otrzymanych wyników sporządzono ich graficzne oraz tabelaryczne zestawienie. W pierwszej serii badań oraz obliczeń określono wartość stałej siatki filtracyjnej t', która rosła wraz ze wzrostem ciśnienia filtracji. W drugiej serii badań oraz obliczeń określono wartość stałego współczynnika b, występującego w równaniu oporu osadu i w ogólnym równaniu filtracji (Piecuch 2009, 2010).
Stwierdzono, że wraz ze wzrostem zagęszczenia nadawy, wzrasta wartości stałego współczynnika filtracji grawitacyjnej określanego symbolem b, natomiast proces filtracji grawitacyjnej przebiega wolniej. Z wrócono uwagę, że dla przyjętego w obliczeniach układu jednostek SI, wartości obydwu wyznaczonych współczynników t' oraz b stanowią liczby wielocyfrowe o wartościach bardzo dużych (t') oraz bardzo małych ułamków (b). W tym odniesieniu obliczenia nie są łatwe.
Hebrew learning ideologies and the reconceptualization of American Judaism: Language debates in American Jewish schooling in the early 20th century
Authors: Avni Sharon 
Published: January 2016

AbstractThis article examines the ways in which Hebrew education was construed in the United States by tracing the Hebrew ideology debate of the early and mid-1900s, when dramatic changes were made to modernize Jewish schooling and its place within American society. Focusing on the Hebrew learning ideologies and educational philosophies of Samson Benderly and his followers, it examines how the
Emily Dickinson’s “My life had stood a loaded gun” – An interdisciplinary analysis
Authors: Bauer Matthias , Bade Nadine , Beck Sigrid , Dörge Carmen , von Eckartsberg Burkhard , Niefer Janina , Ottschofski Saskia , Zirker Angelika 
Published: January 2016

AbstractIn this article we analyse Emily Dickinson’s poem “My life had stood a loaded gun” using a specific methodology that combines linguistic and literary theory. The first step is a textual analysis with the methods of compositional semantics. The second step is a literary analysis enriching the literal meaning with information about the wider context of the poem. The division of these two steps reflects the distinction between an objective interpretation of the text based solely on the rules of grammar and a subjective reading which draws on various external fields of reference. In combining both steps, we show why some interpretations of the poem are more plausible than others and how different lines of interpretation are related to each other. However, it is not our aim to provide one definite interpretation of the poem or to favour one reading over the others. Rather, we wish to show how Dickinson’s use of specific grammatical mechanisms leads to a number of interpretations which are more or less plausible. That is, we identify plausible interpretations on the basis of grammatical evidence, and we relate these to each other by pointing at instances in the poem where a divergence of interpretations is possible (cases of ambiguity, for example). This method is helpful for literary studies since formal linguistics helps produce a systematic and non-arbitrary analysis, and it is helpful for linguistic analysis since it uncovers which violations of grammar do or do not disturb the interpretative process, and which kind of structures need pragmatic enrichment.
Thermo-Elastic Analysis Of A Rotating Hollow Cylinder Made Of Arbitrary Functionally Graded Materials
Authors: Arefi Mohammad , Nahas Iman , Abedi Majid 
Published: January 2016

AbstractThermo-mechanical analysis of the functionally graded orthotropic rotating hollow structures, subjected to thermo-mechanical loadings is studied in this paper. The relations were derived for both plane strain and plane stress conditions as a cylinder and disk, respectively. Non homogeneity was considered arbitrary through thickness direction for all mechanical and thermal properties. The responses of the system including temperature distribution, radial displacement and radial and circumferential stresses were derived in the general state. As case study, power law gradation was assumed for functionally graded cylinder and the mentioned results were evaluated in terms of parameters of the system such as non-homogeneous index and angular velocity.
The Kinetic Study of The Hydrothermal Growth of Zno Nanorod Array Films / Zno Nanostieņu Kopu Pārklājuma Hidrotermālās Augšanas Kinētikas Izpēte
Authors: Gerbreders V. , Sarajevs P. , Mihailova I. , Tamanis E. 
Published: January 2016

Abstract
The simple analysis method has been introduced for the kinetic analysis of the hydrothermal growth. The zinc oxide nanorod arrays have been synthesized via a hydrothermal process. Zinc nitrate hexahydrate (Zn(NO3)2 · 6H2O) has been used as the precursor in the presence of hexamethylenetetramine (C6H12N4) for the formation of ZnO nanostructures. Long-term isothermal growth kinetics of ZnO nanorods has been investigated. The effect of the solution temperature (70-90 ℃) on the kinetics of the hydrothermal growth of ZnO nanorods has been examined. An extensive analysis by scanning electron microscopy, energy dispersive spectroscopy and x-ray diffraction has revealed that the as-synthesized ZnO nanorod arrays are well-crystalline and possessing hexagonal wurtzite structure. These ZnO films have promising potential advantages in microelectronic and optoelectronic applications.
Obtaining a Well-Aligned ZnO Nanotube Array Using the Hydrothermal Growth Method / Labi Sakārtotu Zno Nanocauruļu Kopu Iegūšana, Izmantojot Hidrotermālo Metodi
Authors: Krasovska M. , Gerbreders V. , Paskevics V. , Ogurcovs A. , Mihailova I. 
Published: January 2016

Abstract
Optimal growing parameters have been found using the hydrothermal method to obtain well-aligned vertical ZnO nanorod and nanotube arrays. The influence of different growing factors (such as temperature, growing solution concentration, method of obtaining seed layer and condition) on nanotube morphology and size is described in the paper.
Well-structured ZnO nanotubes have been obtained by using a selfselective etching method with lowering temperatures of growth during the hydrothermal process.
It is shown that the optical properties of the nanostructure arrays obtained are sensitive to the medium in which they are placed, which is why they can be used as sensors for pure substance detection and in different solutions for impurity determination.
A new kind of the solution of degenerate
parabolic equation with unbounded
convection term
Authors: Huashui Zhan  
Published: January 2016

Abstract
A new kind of entropy solution of Cauchy problem of the strong degenerate parabolic equation

is introduced. If u0 ∈ L∞(RN), E = {Ei} ∈ (L2(QT))N and divE ∈ L2(QT), by a modified regularization
method and choosing the suitable test functions, the BV estimates are got, the existence of the entropy solution is
obtained. At last, by Kruzkov bi-variables method, the stability of the solutions is obtained.
Linear and nonlinear abstract differential
equations of high order
Authors: Shakhmurov Veli B. 
Published: January 2016

Abstract
The nonlocal boundary value problems for linear and nonlinear degenerate abstract differential equations
of arbitrary order are studied. The equations have the variable coefficients and small parameters in principal part.
The separability properties for linear problem, sharp coercive estimates for resolvent, discreetness of spectrum and
completeness of root elements of the corresponding differential operator are obtained. Moreover, optimal regularity
properties for nonlinear problem is established. In application, the separability and spectral properties of nonlocal
boundary value problem for the system of degenerate differential equations of infinite order is derived.
The estimates of diagonally dominant degree
and eigenvalues inclusion regions
for the Schur complement of block
diagonally dominant matrices
Authors: Wang Feng , Sun Deshu 
Published: January 2016

Abstract
The theory of Schur complement plays an important role in many fields, such as matrix theory and
control theory. In this paper, applying the properties of Schur complement, some new estimates of diagonally
dominant degree on the Schur complement of I(II)-block strictly diagonally dominant matrices and I(II)-block strictly
doubly diagonally dominant matrices are obtained, which improve some relative results in Liu [Linear Algebra
Appl. 435(2011) 3085-3100]. As an application, we present several new eigenvalue inclusion regions for the Schur
complement of matrices. Finally, we give a numerical example to illustrate the advantages of our derived results.
Large Area Concrete Surface Topography Measurements Using Optical 3D Scanner
Authors: Majchrowski Radomir , Grzelka Mirosław , Wieczorowski Michał , Sadowski Łukasz , Gapiński Bartosz 
Published: January 2016

Abstract
The paper presents examinations of the surface of base concrete with a 3D scanner. Two base concrete surfaces, differently prepared, were examined, together with two measurement strategies: simple and fast 3D scanning and partial scanning in selected areas corresponding to the device measurement space. In order to complete the analysis of a concrete surface topography an original Matlab-based program TAS (Topography Analysis and Simulation) was developed for both 2D and 3D surface analyses. It enables data processing, calculation of parameters, data visualization and digital filtration.
Perceptions of Social Media
Authors: Segaard Signe Bock 
Published: January 2016

Abstract
While observers have focused on the political use of social media when exploring their democratic potential, we know little about users’ perceptions of these media. These perceptions could well be important to understanding the political use of social media. In exploring users’ perceptions, the article asks whether politicians and voters view social media in a similar way, and to what extent they consider social media to be an apt arena for political communication. Within a Norwegian context, which may prove useful as a critical case, and using the technological frames model, we find that although voters’ and politicians’ opinions are not that dissimilar overall, politicians are more likely to recognize the political communicative role of social media. However, social media do indeed have the potential to become arenas for political mobilization among groups that traditionally are less visible in political arenas.
Professional autonomy
Authors: Nygren Gunnar , Dobek-Ostrowska Boguslawa , Anikina Maria 
Published: January 2016

Abstract
Degree of autonomy is one of the key dimensions of professionalization in journalism. However, the strive for autonomy looks different in different media systems, where pressure on autonomy can come from both political and commercial powers, outside and within the media. Media development also changes the conditions for professional autonomy for journalists, in both a positive and a negative sense. In the comparative research project “Journalism in change”, the journalistic cultures in Russia, Poland and Sweden are studied. In a survey involving 1500 journalists from the three countries, journalists report on their perceived autonomy in their daily work and in relation to different actors inside and outside the media. The survey covers how the work has been changed by media developments, and how these changes have affected journalists′perceived autonomy. The results show similarities in the strive for autonomy, but also clear differences in how autonomy is perceived by journalists in the three countries.
Patterns of Media Use and Reflections on Media among young Danes
Authors: Krogager Stinne Gunder Strøm , Povlsen Karen Klitgaard , Degn Hans-Peter 
Published: January 2016

Abstract
The present article examines cross-media use among 10- to 16-year-old Danish children and adolescents. Our research interest is in identifying and affirming patterns among media use, gender and age. Using a methodological design that combines qualitative and quantitative methods, we interviewed participants regarding their media use and paired our qualitative findings with quantitative rating inquiries generated from Danish commercial databases. Our results suggest that although cross-media use is complex and differs according to age and gender, media are often used for similar purposes, e.g., sustaining social relationships.
Solving nonlinear evolution equation system using two different
methods
Authors: Kaplan Melike , Bekir Ahmet , Ozer Mehmet N. 
Published: January 2016

Abstract
This paper deals with constructing more general
exact solutions of the coupled Higgs equation by using
the (G0/G, 1/G)-expansion and (1/G0)-expansion methods.
The obtained solutions are expressed by three types
of functions: hyperbolic, trigonometric and rational functions
with free parameters. It has been shown that the suggested
methods are productive and will be used to solve
nonlinear partial differential equations in applied mathematics
and engineering. Throughout the paper, all the calculations
are made with the aid of the Maple software.
Variability of Salpa thompsoni population structure in the Drake Passage in summer season 2010
Authors: Słomska Angelika W. , Panasiuk-Chodnicka Anna A. , Żmijewska Maria I. , Mańko Maciej K. 
Published: January 2016

AbstractDynamic climate changes have become noticeable in recent decades, especially in the vulnerable region of the West Antarctic. The relatively simple food web of this area relies on krill –Euphausia superba. Presumably, as a result of climatic fluctuations, a decrease in the number of this crustacean has been recorded, followed by an increase in the population of the gelatinous zooplankterSalpa thompsoni. In the research presented herein, population and morphometric analyses ofSalpa thompsonihave been conducted. Specimens for this research were collected from the Drake Passage, using a Bongo net in the summer season of 2010. It has been found that the horizontal distribution of this gelatinous zooplankter was significantly irregular (Kruskal-Wallis test, p < 0.001). In the northern part of the investigated area, both blastozooids and oozooids were recorded, which confirms the dynamic development of this species. The central part of the Drake Passage was characterized by the dominance of blastozooids, with embryos found at different stages of the development. Only in the region of the South Shetland Islands, the salpid population was characterized by reduced or even stopped reproduction. The immense reproductive efficiency observed in theSalpa thompsonipopulation was mostly induced by the favourable thermal conditions. These observations may suggest that the ongoing climat changes in the West Antarctic will promote the population expansion of this species.
Two-element acoustic array gives insight into ice-ocean interactions in Hornsund Fjord, Spitsbergen
Authors: Głowacki Oskar , Deane Grant B. , Moskalik Mateusz , Tęgowski Jarosław , Blondel Philippe 
Published: January 2016

AbstractGlacierized fjords are dynamic regions, with variable oceanographic conditions and complex ice-ocean interactions, which are still poorly understood. Recent studies have shown that passive underwater acoustics offers new promising tools in this branch of polar research. Here, we present results from two field campaigns, conducted in summer 2013 and spring 2014. Several recordings with a bespoke two-hydrophone acoustic buoy were made in different parts of Hornsund Fjord, Spitsbergen in the vicinity of tidewater glaciers to study the directionality of underwater ambient noise. Representative segments of the data are used to illustrate the analyses, and determine the directions of sound sources by using the time differences of arrivals between two horizontally aligned, broadband hydrophones. The results reveal that low frequency noise (< 3 kHz) is radiated mostly from the ice cliffs, while high-frequency (> 3 kHz) noise directionality strongly depends on the distribution of floating glacial ice throughout the fjord. Changing rates of iceberg production as seen for example in field photographs and logs are, in turn, most likely linked to signal amplitudes for relevant directions. These findings demonstrate the potential offered by passive acoustics to study the dynamics of individual tidewater glaciers.
A study into politeness strategies and politeness markers in Jordanian print advertisements as persuasive tools
Authors: Issa Sadam 
Published: January 2016

AbstractThis study seeks to investigate the socio-pragmatic and persuasive functions of politeness in Jordanian print advertisements. Specifically, the study is concerned with the linguistic politeness strategies the Jordanian ads deploy in order to persuade the potential Jordanian customers of their products. Brown and Levinson’s (1987) seminal work as well as Watts’ (2003) and Spencer-Oatey’s (2005) research on politeness provide the framework for this study. My study is based on examining linguistic politeness as linked to social relationships (Christie 2005), in that “‘ways of putting things’ ... are part of the very stuff that social relationships are made of” (Brown and Levinson 1987: 55). It is believed that the success of the ads hinges on their politeness and persuasion strategies that appeal to the socio-economic and cultural specificities of Jordanian society. To this end, 200 Jordanian ads were collected from
Spatial Distribution And Synoptic Conditions Of Snow Accumulation And Snow Ablation In The West Siberian Plain
Authors: Bednorz Ewa , Wibig Joanna 
Published: January 2016

Abstract
The mean duration of snow coverage in the West Siberian Plain is approximately eight months in the north to about five months in the south. While the period of intense snow melting is short (one or two months between March and May), snow accumulation persists for most of the cold season. Snow accumulation is associated with negative anomalies of sea level pressure, which means increased cyclonal activity and weaker than normal Siberian High. Much lower anomalies of sea level pressure occur during snow ablation. This suggests smaller influence of air circulation on snow cover reduction in spring.