bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unfreezing identities: Exploring choral singing in the workplace
Authors: Balsnes Anne Haugland , Jansson Dag 
Published: June 2015

Abstract
The topic of this article is the emerging trend of singing at work. The discussion is exemplified by results from case studies of singing interventions carried out at two different work places. The research comprised group interviews, participant observation and questionnaires. Our phenomenological and hermeneutic approach focuses mainly on the employees’ experience of singing at work. The analysis was driven by thematic coding. The discussion is illuminated mainly by Etienne Wenger’s community of practice theory. The following research questions were developed: how do the members of a workplace community experience choral singing? What implications do the participants see for themselves as individuals and for the organization? We identified four axes of impact: enjoyment, comfort zone, communality, and identity and roles. A workplace choir can challenge perceptions about how collegues view each other and transform individual identities. Consequently, the choir may also change the workplace as a practice community.
Accuracy evaluation of pendulum gravity measurements of Robert von Sterneck
Authors: Pešková Alena , Holešovský Jan 
Published: June 2015

<span style="color: #000000;">The accuracy of first pendulum gravity measurements in the Czech territory was determined using both original surveying notebooks of Robert Daublebsky von Sterneck and modern technologies. Since more accurate methods are used for gravity measurements nowadays, our work is mostly important from the historical point of view. In previous works, the accuracy of Sterneck’s gravity measurements was determined using only a small dataset. Here we process all Sterneck’s measurements from the Czech territory (a dataset ten times larger than in the previous works, and we complexly assess the accuracy of these measurements. Locations of the measurements were found with the help of original notebooks. Gravity in the site was interpolated using actual gravity models. Finally, the accuracy of Sterneck’s measurements was evaluated as the difference between the measured and interpolated gravity.<br style="color: #000000;" /></span>
Post-transplantation diabetes mellitus: an overview
Authors: Sklyanik Igor Alexandrovich , Shamkhalova Minara Shamkhalovna , Shestakova Marina Vladimirovna 
Published: June 2015

This review presents an analysis of clinical and experimental studies related to post-transplantation diabetes mellitus (PTDM) ? a specific complication after solid organ transplantation. A search of the databases eLibrary, PubMed and Scopus using the keywords ?posttransplantation diabetes mellitus?, ?new onset diabetes after transplantation?, ?transplantation? and ?immunosuppression? yielded in 523 results, including four from Russian literature (one original research manuscript). The analysis included original research, reviews, meta-analyses and monographs published not before 2005 in Russian and English. A total of 60 relevant original researches and reviews were included in this review. Diagnostic criteria, disease risk factors and potential pathogenic mechanisms were all considered. The mechanisms of the diabetogenic effect of modern immunosuppressive drugs were analysed. The principles of pre- and post-transplantation screening for PTDM and optimal management strategies for patients with PTDM are presented. The current controversial issues concerning the various aspects of PTDM are discussed.
General decay in a Timoshenko-type system with thermoelasticity with second sound
Authors: Ayadi Mohamed Ali , Bchatnia Ahmed , Hamouda Makram , Messaoudi Salim 
Published: June 2015

Abstract
In this article, we consider a vibrating nonlinear Timoshenko system with thermoelasticity with second sound. We discuss the well-posedness and the regularity of solutions using the semi-group theory. Moreover, we establish an explicit and general decay result for a wide class of relaxation functions, which depend on a stability number μ.
Analytical characterization of some pasteurized apple juices during storage
Authors: Damian Cristina , Leahu Ana , Oroian Mircea , Ropciuc Sorina 
Published: June 2015

Abstract
The aim of the study was to assess the effect of three weeks of storage on the chemical and rheological properties of apple juices obtained from Idared and Jonatan apples variety. Total antioxidant activity, levels of bio-active compound groups and the viscosity were measured to characterize the investigated juices. The method applied for the determination of ascorbic acid concentration was with 2, 6-diclorophenolindophenol. Total phenols (TP) in apple juices were determined using the Folin-Ciocalteau method and antioxidant activity by the use of DPPH free radical method. The viscosity of apple juices was investigated by a rotational viscometer, Brookfield viscometer (Brookfield Engineering Inc., Model RV-DV I Prime) with RV spindles. During three weeks of storage, different rates of all measured properties have been observed decreasing for both studied apples varieties juices. The juices from Jonatan apples have higher antioxidant activities that are correlated with the higher content in polyphenols and lower values of viscosity.
Surface treatments applied on titanium implants
Authors: Cosma Sorin Cosmin , Balc Nicolae , Moldovan Marioara , Miron-Borzan Cristina Ștefana 
Published: June 2015

Abstract
The aim of this systematic review was to identify new methods of surface treatments applied on titanium grafts and their clinical and histological outcomes, including different routes for surface treatments, respectively the results of in vitro or in vivo tests. These surface modifications analysed meet three main requirements: to prevent nonspecific absorption of denatured protein on the surface, to attract native tissue cells or progenitor cells capable of differentiation in an appropriate manner or to facilitate biochemical signals to induce biochemical healing mechanisms. Therefore, cells will recognize these surface modifications and will be influenced in their adhesion behavior, profiling and differentiation. This review summarizes some of the recent developments in coatings for medical field.
Relative Concerns on Visible Consumption: A Source of Economic Distortions
Authors: Quintana-Domeque Climent , Turino Francesco 
Published: June 2015

AbstractDo relative concerns on visible consumption give rise to economic distortions? We re-examine the question posited by Arrow and Dasgupta (2009) building upon their general framework but recognizing that relative concerns can only apply to visible goods (e.g., cars, clothing, jewelry) and that households consume both visible and non-visible goods. Contrary to Arrow and Dasgupta (2009), the answer to this question turns to be always affirmative: the competitive equilibrium will always be different than the socially optimal one, since individuals do not take into account the negative externality they exert on others through the consumption of the visible good, while the social planner does. If one invokes separability assumptions, then the steady state competitive equilibrium consumption of non-visible goods will be strictly lower than the socially optimal one.
Petrographic and mineral variability of the rocks accompanying selected coal seams of the Poruba beds and their influence of the trace elements content / Zróżnicowanie Petrograficzno-Mineralogiczne Skał Współ Występujacych Z Wybranymi Pokładami Węgla Z Warstw Porębskich I Jego W Pływ Na Zawartość Pierwiastków Śladowych
Authors: Kokowska-Pawłowska Magdalena 
Published: June 2015

Streszczenie
Skały współwystępujące z węglem w wybranych pokładach warstw porębskich (610, 620, 630) reprezentowane są najczęściej przez iłowce oraz iłowce syderytyczne, a rzadziej przez mułowce i mułowce syderytyczmne. Sporadycznie występują piaskowce. Stwierdzono także występowanie przerostu z tonsteinem. Zależnie od odmiany petrograficznej skał stwierdzono w nich zróżnicowanie zawartości pierwiastków śladowych (Ba, Zn, Mn, V, Cr, Cu, Ni. Pb, As, Ga, B, Co, Ge, Be, Li, Cd, Ag, Sr - w kolejności malejącego udziału). Znaczna część pierwiastków wykazała wysoki i często dominujący udział w iłowcach. Stwierdzono także regionalne zróżnicowanie zawartości pierwiast- ków śladowych w skałach.
Badania korelacji pomiędzy zawartością pierwiastków śladowych a zawartością głównych mine- rałów w skałach potwierdziły powinowactwo wielu pierwiastków śladowych z substancją organiczną, minerałami ilastymi i węglanami. Zwraca uwagę występowanie korelacji licznych pierwiastków śladowych z substancją organiczną (węglem) przy stosunkowo niewielkiej liczbie pierwiastków korelujących z minerałami ilastymi.
Analiza zmian podaży gipsu w Polsce w świetle rozwoju odsiarczania spalin w elektrowniach konwencjonalnych / Analysis of the Changes in Polish Gypsum Resources in the Context of Flue Gas Desulfurization in Conventional Power Plants
Authors: Szlugaj Jarosław , Naworyta Wojciech 
Published: June 2015

Streszczenie
Dwadzieścia lat temu w elektrowni Bełchatów uruchomiono pierwszą w Polsce instalację odsiar- czania spalin metodą mokrą, w której jako produkt uboczny otrzymuje się pełnowartościowy gips syntetyczny. W konsekwencji zobowiązań międzynarodowych odsiarczanie wdrożono stopniowo w wielu innych krajowych elektrowniach. W wyniku odsiarczania metodą mokrą wapienną na rynku surowców budowlanych pojawiły się duże ilości gipsu syntetycznego. Artykuł jest próbą oceny zmian na rynku gipsu w Polsce jakie dokonały się w wyniku tego procesu. Przedstawiono stan zasobów gipsu naturalnego oraz wydobycie w ostatnich dwóch dekadach. Poddano analizie proces wdrażania systemów odsiarczania w krajowych elektrowniach z podaniem zdolności produkcyjnej i produkcji rzeczywistej gipsów syntetycznych. Omówiono sposób zagospodarowania otrzymywanych gipsów syntetycznych. Porównano produkcję gipsów naturalnych i syntetycznych w ostatnim dwudziesto- leciu. Na podstawie oficjalnych planów rozwojowych polskiej energetyki przedstawiono prognozę podaży gipsów z odsiarczania w najbliższej dekadzie. W studium przypadku na przykładzie pro- jektowanej kopalni węgla brunatnego przedstawiono metodę prognozowania podaży gipsu z instalacji odsiarczania spalin w elektrowni opalanej węglem z tego złoża. W podsumowaniu podkreślono, że zmiany w pozyskaniu związków siarki są efektem postępu technologicznego, którego głównym motorem jest potrzeba ochrony środowiska naturalnego.
Parametry hydrogeologiczne skał drenowanych przez stare wyrobiska górnicze w rejonie Miedzianki i Ciechanowie (Sudety Zachodnie) / Hydrogeological Parameters of Rocks Drained by the Old Mine Workings in the Area of Miedzianka and Ciechanowice (Western Sudetes)
Authors: Wąsik Mirosław , Wąsowski Marcin 
Published: June 2015

Streszczenie
Artykuł prezentuje wyniki badań parametrów hydrogeologicznych, wykonanych na terenach nieczynnych kopalń Cu, Ag i As w Miedziance i Cie cha nowi cach (Sudety Zachodnie). W profilu geologicznym wydziela się luźne osady czwartorzędowe oraz pokrywy zwictrzelinowc leżące na skalach krystalicznych masywu karkonosko-izerskiego oraz kaczawskiego lupkowo-zieleńcowcgo pasma fałdowego. Stwierdzono, że nieczynne wyrobiska górnicze decydują o wysokości potencjału zasobności. Najwyższe wartości tego parametru (powyżej 50 tys. m5) uzyskano dla rejonów naj- bardziej pociętych wyrobiskami górniczymi. Nie zaobserwowano wpływu wyrobisk górniczych na wielkości pozostałych parametrów skal. Oznaczenia wartości współczynników filtracji, porowatości efektywnej, odsaczalnośc i grawitacyjnej i wodochlonności wykonane w sąsiedztwie oraz w oddaleniu od wyrobisk bardziej zależą od litologii, lokalnej tektoniki oraz stopnia zwietrzenia.
W profilu występują dwie strefy' znacznie różniące się charakterem przepuszczalności i możli- wościami gromadzenia wód. Pierwszą tworzą zwictrzeliny charakteryzujące się wartościami współczynnika filtracji zwykle od 0,1 do kilkunastu md. Niższe wartości uzyskano dla zwietrzę lin gliniastych, natomiast najwyższe, osiągające kilkaset nv'd, dla ziarnistych zwictrzelin granitów. Zwictrzeliny charakteryzują się wysokimi wartościami współczynnika odsączałności grawitacyjnej od 0,17 do 0,37. Drugą strefę tworzą występujące niżej lite skały krystaliczne. Wyznaczony dla nich współczynnik filtracji szczelinowej osiąga maksymalnie wartości nieco ponad 0,4 m/d, a zwykle kształtuje się na poziomie 0,01-0,09 m'd. Skały krystaliczne charakteryzują wartości współczynnika szczelinowatości w zakresieod 0,0005 do 0,0455, zwykle rzędu 0,002-0,004. Spośród badanych skał krystalicznych, najkorzystniejszymi wartościami parametrów hydrogeologicznych charakteryzują się hornfelsy, amfibolity i granity. Wyznaczone parametry hydrogeologiczne skal krystalicznych wska- zują ogólnie na ich niską pojemność wodną. Wyższe właściwości kolcktorskie w ich obrębie należy wiązać z dyslokacjami i spękaniami ciosowymi.
Biomorphological Association and Path Analysis in Sunflower (Helianthus annuus L.)
Authors: Jocković Milan , Jocić Siniša , Marjanović-Jeromela Ana , Ćirić Mihajlo , Čanak Petar , Miklič Vladimir , Cvejić Sandra 
Published: June 2015

AbstractIn breeding process it is important to know the extent of association between the traits that affect the yield. Objective of this study was to determine genotypic and phenotypic correlation and path coefficients in 50 sunflower hybrid combinations in order to identify research priorities in sunflower breeding. Relationships between seed yield and five bio-morphological traits in sunflower (oil content, protein content, 1,000-seed weight, head diameter and plant height) were studied. Head diameter had the highest correlation coefficient with seed yield, at phenotypic and genotypic level. Path analysis revealed that all evaluated traits had positive influence on seed yield at both, genotypic and phenotypic, levels. The highest direct effect on seed yield was found for head diameter, while protein content had the lowest direct effect on seed yield. Study has shown that the greatest improvement in sunflower seed yield can be achieved through selection on head diameter.
Chemical composition of volatiles extracted from indigenous tree species of Uganda: composition of bark extracts from Psorospermum febrifugum and Milicia excelsa
Authors: Nagawa Christine Betty , Böhmdorfer Stefan , Rosenau Thomas 
Published: June 2015

Abstract
Trees with natural resistance to decay by pests contain extractives, which are candidates for wood preservatives. In this study, the bark of Psorospermum febrifugum Spach and Milicia excelsa Welw. was extracted with hexane, acetone, methanol, and dichloromethane by pressurized liquid extraction. The chemical analysis of the extracts was performed by gas chromatography-mass spectrometry and the identified compounds were reviewed for known bioactivity. The results show that these species contain compounds with known antimicrobial activity and as such could serve for the development of antifungal wood preservatives, especially for local usage.
Inter-firm Relationship Quality vs. Perceived Cultural Differences
Authors: Danik Lidia 
Published: June 2015

Abstract
The objective of this exploratory study is to determine whether and (if so) how perceived cultural differences influence relationship quality.
To make this determination this study analyzed the cooperation of 278 Polish exporters and importers with their German and Chinese partners. Indicators of perceived cultural differences by cooperating companies were created, and then linear regression models were derived, showing the dependence of relationship quality dimensions on the perceived cultural differences. The findings confirmed the impact of the cultural differences perceived by Polish partners on all dimensions of inter-firm relationship quality. However, not all the perceived differences influenced the relationships. The perception of the differences did not depend strongly on the partner’s country of origin.
This study identifies new antecedents of relationship quality, which not only contribute to the international business theory but also suggests practical managerial implications. On the whole, managers can improve relationship quality if they behave similarly to their partners.
Capturing Absorptive Capacity: Concepts, Determinants, Measurement Modes and Role in Open Innovation
Authors: Lewandowska Małgorzata Stefania 
Published: June 2015

Abstract
Absorptive capacity (ACAP) enables firm to adjust to a rapidly changing environment and achieve sustained competitive advantage. This study contributes to the existing body of knowledge on ACAP by providing a comprehensive literature review of the various conceptual attributes of the construct, its determinants, outcomes, and positive and negative consequences of using its input-oriented, output-oriented, and perceptive measurement modes. Proposals for constructing ACAP based on the Community Innovation Survey (CIS) empirically illustrate for the conceptual part of the paper. Additionally, combining concepts of absorptive capacity and open innovation (which is still rare in the literature) provides a new perspective on the role of absorptive capacity in opening up the innovation process. This advances the understanding of both inter-related proposals. The article also identifies key problems and formulates future research directions to improve the multi-level characteristics of absorptive capacity.
Performance of the High Sensitivity Open Source Multi-GNSS Assisted GNSS Reference Server.
Authors: Sarwar Ali , Rizos Chris , Glennon Eamonn 
Published: June 2015

AbstractThe Open Source GNSS Reference Server (OSGRS) exploits the GNSS Reference Interface Protocol (GRIP) to provide assistance data to GPS receivers. Assistance can be in terms of signal acquisition and in the processing of the measurement data. The data transfer protocol is based on Extensible Mark-up Language (XML) schema. The first version of the OSGRS required a direct hardware connection to a GPS device to acquire the data necessary to generate the appropriate assistance. Scenarios of interest for the OSGRS users are weak signal strength indoors, obstructed outdoors or heavy multipath environments.This paper describes an improved version of OSGRS that provides alternative assistance support from a number of Global Navigation Satellite Systems (GNSS). The underlying protocol to transfer GNSS assistance data from global casters is the Networked Transport of RTCM (Radio Technical Commission for Maritime Services) over Internet Protocol (NTRIP), and/or the RINEX (Receiver Independent Exchange) format. This expands the assistance and support model of the OSGRS to globally available GNSS data servers connected via internet casters. A variety of formats and versions of RINEX and RTCM streams become available, which strengthens the assistance provisioning capability of the OSGRS platform.The prime motivation for this work was to enhance the system architecture of the OSGRS to take advantage of globally available GNSS data sources. Open source software architectures and assistance models provide acquisition and data processing assistance for GNSS receivers operating in weak signal environments. This paper describes test scenarios to benchmark the OSGRSv2 performance against other Assisted-GNSS solutions. Benchmarking devices include the SPOT satellite messenger, MS-Based & MS-Assisted GNSS, HSGNSS (SiRFstar-III) and Wireless Sensor Networks Assisted-GNSS. Benchmarked parameters include the number of tracked satellites, the Time to Fix First (TTFF), navigation availability and accuracy.Three different configurations of Multi-GNSS assistance servers were used, namely Cloud-Client-Server, the Demilitarized Zone (DMZ) Client-Server and PC-Client-Server; with respect to the connectivity location of client and server. The impact on the performance based on server and/or client initiation, hardware capability, network latency, processing delay and computation times with their storage, scalability, processing and load sharing capabilities, were analysed.The performance of the OSGRS is compared against commercial GNSS, Assisted-GNSS and WSN-enabled GNSS devices. The OSGRS system demonstrated lower TTFF and higher availability.
Managing Network Based Governance Structures in Disasters: The Case of the Passau Flood in 2013
Authors: Wittmann Sebastian , Jurisch Marlen , Krcmar Helmut 
Published: June 2015

AbstractOver the past decades, an increasing number of environmental situations posed threats to humans and assets. Natural disasters happen more frequently and with higher intensity – such as floods caused by heavy rains. One example was the flood that hit in the middle of Europe in 2013. This article reports a single case study of the flood in the German city of Passau in 2013. In the case study we analyze the governance structure employed throughout the flooding as well as how it was managed. Beyond this, we examine how information and communication technology supported the management staff in fulfilling their tasks. Data were collected through semi-structured qualitative interviews with members of the management staff from the main organizations involved in the relief work for the Passau Flood in 2013. Our results show that a hybrid governance structure was employed. All in all, the disaster could be averted, but we identified several challenges and areas for improvement, which could be helpful for managing future disasters successfully.
Content-Based Image Retrieval Using Edge and Gradient Orientation Features of an Object in an Image From Database
Authors: Kavitha H. , Sudhamani M.V. 
Published: June 2015

AbstractIn this work, we present a combination of edge feature and distribution of the gradient orientation of an object technique for content-based image retrieval (CBIR). First, the bidimensional empirical mode decomposition (BEMD) technique is employed to get the edge features of an image. Later, the information about the gradient orientation is obtained by the histogram of oriented gradient (HOG) descriptor. These two features are extracted from the images and stored in the database for further usage. When the user submits the query image, the features are extracted in same way and compared with the features of the data set images. Based on the similarity, the relevant images have been selected as a resultant set. These images are ranked from higher similarity to lower similarity and displayed on the user interface. The experiments are carried out using the Columbia Object Image Library (COIL-100) dataset. The COIL-100 database is a collection of 7200 color images belonging to 100 various objects, each with 72 different orientations. Our proposed method results are high with precision and recall values of 93.00 and 77.70, respectively. Taken individually, the precision and recall values for BEMD are 82.25 and 68.54 and for HOG are 85.00, 71.10, respectively. The observation from the experimental result is that the combined method performs better than the individual methods. Experiments are conducted in the presence of noise, and the robustness of the method is verified.
Rent-Seeking and Litigation: The Hidden Virtues of Limited Fee Shifting
Authors: Carbonara Emanuela , Parisi Francesco , von Wangenheim Georg 
Published: June 2015

Abstract
In the past couple of decades, scholars have predominantly employed rent-seeking models to analyze litigation problems. In this paper, we build on the existing literature to show how alternative fee-shifting arrangements (e.g., the American rule and English rule with limited fee-shifting) affect parties’ litigation expenditures and their decisions to litigate. Contrary to the prevailing wisdom, we discover that, when fee shifting is limited, the English rule presents some interrelated advantages over the American rule, including the reduction of litigation rates and the possible reduction of expected litigation expenditures. Our results unveil a hidden virtue of limited fee shifting, showing that an increase in such limit may lead to a desirable sorting of socially valuable litigation.