bluuebunny/crossref_metadata_2025_split huggingface dataset:
Rare earth based nanostructured materials: synthesis, functionalization, properties and bioimaging and biosensing applications
Authors: Escudero Alberto , Becerro Ana I. , Carrillo-Carrión Carolina , Núñez Nuria O. , Zyuzin Mikhail V. , Laguna Mariano , González-Mancebo Daniel , Ocaña Manuel , Parak Wolfgang J. 
Published: July 2017

Abstract
Rare earth based nanostructures constitute a type of functional materials widely used and studied in the recent literature. The purpose of this review is to provide a general and comprehensive overview of the current state of the art, with special focus on the commonly employed synthesis methods and functionalization strategies of rare earth based nanoparticles and on their different bioimaging and biosensing applications. The luminescent (including downconversion, upconversion and permanent luminescence) and magnetic properties of rare earth based nanoparticles, as well as their ability to absorb X-rays, will also be explained and connected with their luminescent, magnetic resonance and X-ray computed tomography bioimaging applications, respectively. This review is not only restricted to nanoparticles, and recent advances reported for in other nanostructures containing rare earths, such as metal organic frameworks and lanthanide complexes conjugated with biological structures, will also be commented on.
Bevin’s Boys Abroad: British Labor Diplomacy in the Cold War Era
Authors: Van Goethem Geert 
Published: July 2017

AbstractIn this article the rise and fall of the position of the labor attaché in British diplomacy during the Cold War is analysed. Experts from outside the diplomatic corps worked, and continue to work, in British embassies alongside diplomats. Labor was a prominent domain of expertise during the entire Cold War era, but this has almost disappeared today. It could therefore be claimed that British diplomacy was able to adapt to changing political circumstances. However, this is a story with multiple layers and contains not only elements of change but also continuity over the longer term of the diplomatic enterprise that, despite flexibility and increasing openness, remains a world apart.
A Processual Concept of Media Generation
Authors: Hepp Andreas , Berg Matthias , Roitsch Cindy 
Published: July 2017

AbstractWith a focus on elderly people this article puts forward a concept of media generation as athickeningof one or more age groups of people who in their media appropriation share a specific experience space of mediatization and subsequently, based on their personal media biographies, develop a shared self-image as a media generation. Such a conceptualisation grasps media generation as a process. It operates with the central aspects of media relatedness, media-generational specifics of appropriation, and self-positioning. This offers an understanding of elderly people after retirement as members of a mass-media media generation. As the qualitative empirical analysis presented in this article demonstrates, members of this mass-media media generation define themselves in contrast to younger media generations.
‘Generation Conviviality’
Authors: Petersen Line Nybro 
Published: July 2017

Abstract
This article is a production study of two talk shows for the Danish television channel, TV2 Charlie: Meyerheim’s Talk Show (2006-) and Cecilie’s Book Show (2015-). TV2 Charlie is a niche channel (part of the TV2 network) that set out to target a mature and elderly audience when it started in 2004. The aim is to bring together mediatization research with production studies and cultural gerontology, and I argue that media logic is a useful analy tical concept that allows us to describe production processes in concrete ways and, at the same time, understand the context-specific ways in which media play a role in societal changes. Thus, through a logic of operationalising conviviality at the channel level, the production level and the programme level, the programmes contribute to perceptions of ageing and old age that emphasise an increased need for stability and safety, on one hand, and a desire for feel-good moments, on the other. Furthermore, the programmes promote positive and active ageing in some instances while keeping old age invisible in other instances.
The Community-Based Information Infrastructure of Older Adult Digital Learning
Authors: Lenstra Noah 
Published: July 2017

Abstract
In the United States of America, senior centers and public libraries are ubiquitous social institutions found in virtually every municipality. This article analyses these institutions as community-based information infrastructure in the digital learning practices of older adults. Older adults turn to these institutions to learn technology in retirement. How learning takes place in these spaces is shaped both by the institutions, and by the older adults. Negotiations between institutions and older adults shape digital learning. These negotiations are shaped by societal ageism. This article shows that older adults are not passive participants in technology learning, using services provided for them by others, but instead actively shape both how learning services are proffered and the institutional contexts in which these services exist. By learning to embrace the agency of older adults, these under-funded public institutions could powerfully reconfigure themselves for an information society that is also ageing.
Healthy Ageing and Mediated Health Expertise
Authors: Christensen Christa Lykke 
Published: July 2017

Abstract
The media are, for many older people, one of the most important sources of information about health. In this article, I examine older people’s experiences and use of media to acquire knowledge about health issues relating to their own life. Key questions concern how media influence older people’s perceptions of health and to what extent they trust the media in relation to health issues. The study demonstrates that the media do not have a uniform influence among older people. For some, the media function as a guide to maintaining and experimenting with an active lifestyle in late life; for others, the media are met with a skeptical attitude as they are not trusted as a source of reliable and unequivocal information on health issues. The study is based on a qualitative interview study with men and women between 65 and 86 years.
Diversifying Macau’s Economic Development: The Role of the Logistics Industry
Authors: Peng Lei , Mou Kuong Hoi , Pun Philip , Lee Jimmy , Lao Rebecca 
Published: July 2017

Abstract
The gaming industry occupies the leading position in Macau’s industrial structure and government revenue. Such a dominant position presents dangers, and so from the economic, political, and strategic points of view it is vital for Macau to diversify its economic development. In this paper, we analyze the development of Macau's logistics industry using a SWOT analysis. Results of the analysis are presented. Conclusions are drawn and recommendations are made for developing the role of Macau’s logistics industry.
Functionality of openair package in air pollution assessment and modeling — a case study of Krakow
Authors: Szulecka Adriana , Oleniacz Robert , Rzeszutek Mateusz 
Published: July 2017

AbstractThe paper presents the possibilities of selected functions from openair package for R programming environment in urban air pollution assessment. Examples of data analysis were based on the measurements from continuous air quality monitoring stations in Krakow (Poland). In order to present additional functionality of this software, modeling results of back trajectories and air pollution dispersion were used. Functions and visualization methods included in openair package make scrutiny of large data sets easier and less time consuming. They allow for analysis of measurement data with the determination of general relationships between parameters, additional complex spatial analyses for back trajectories, and validation of air pollution dispersion models. Openair package is, therefore, a valuable and functional tool that can be successfully used as a support in the air quality management system.
Environmental and technological carrot safety conditions. Part II. Changes in nitrites contents determined by the environment and processing
Authors: Pobereżny Jarosław , Wszelaczyńska Elżbieta , Gościnna Katarzyna , Chmielewski Jarosław 
Published: July 2017

Abstract
The aim of the present research was to determine the effect of environmental conditions (biofortification with Mg) and technological processes (freezing, preserving in jars and drying) on the content of nitrates (III) in carrot. Besides this, the amount of human intake of nitrates (III) found in the carrot products analysed was assayed. The effect on environment resulting from the changes in carrot growing technology was not so unambiguous as for nitrates (V) since most NO2¯ was contained in, for example, processed foods from non-biofortified Mg material. The consumption of products was not hazardous to the consumer since it did not exceed Acceptable Daily Intake (ADI) NO2¯. Most nitrates (III) are consumed with dried carrot and least - with carrot preserved in jars. For this reason, one should run a thorough monitoring of the contents of nitrates (III), toxic to humans since new products based on dried carrot material, such as crisps, are launched in the consumer market.
Electroflotation extraction of sparingly soluble compounds of non-ferrous and rare-earth metals from liquid technological waste
Authors: Kolesnikov Vladimir A. , Brodsky Vladimir A. , Perfil’eva Anna V. , Kolesnikov Artem V. 
Published: July 2017

Abstract
The experimental results describing electroflotation extraction process are presented and analyzed for sparingly soluble compounds of non-ferrous and rare-earth metals, the influence of the disperse phase particle size and particle surface charge on the efficiency and electroflotation rate having been determined.
Testing of a sag of a dosimetry system rotating with a gantry using the interplay effect between detector motion and MLC motion
Authors: Morawska-Kaczyńska Marzena , Dąbrowski Ryszard , Drozdyk Izabela , Kukołowicz Paweł 
Published: July 2017

Abstract
Purpose: An interplay between detector motion and MLC motion is a source of measurement error, when dose for dynamic arc is measured using a dosimetry system moving relative to the beam central axis during its rotation with a gantry. The purpose of this study is to develop and to evaluate a method of quantitative testing of a sag/flex of such dosimetry systems. Methods: The method is based on evaluation of relative differences between signals measured for two single arc beams, where a narrow slit field is sliding during gantry movement in opposite directions. The component of a measurement error related to the interplay effect was first assessed based on theoretical computer simulations and then on measurements for four dosimetry systems. The sag pattern of EPID and 2D array was extracted from the measurement results. Results: The simulations showed a 4 mm difference in field width and 3.3% difference in relative signals at beam axis between test beams where the slit field swept over 19 cm in opposite directions ( sinusoidal sag pattern with amplitude of 1 mm was assumed). The signal differences exceeding 4% and 5% were measured for EPID and 2D array, respectively. Conclusions: Even relatively small detector sag (less than 1 mm) can produce significant measurement error; therefore, the detector sag test should be an obligatory component of a validation of rotating dosimetry systems used for QA of dynamic arcs.
Automatic segmentation of lesion from breast DCE-MR image using artificial fish swarm optimization algorithm
Authors: Janaki Sathya D. , Geetha K. 
Published: July 2017

Abstract
Interpreting Dynamic Contrast-Enhanced (DCE) MR images for signs of breast cancer is time consuming and complex, since the amount of data that needs to be examined by a radiologist in breast DCE-MRI to locate suspicious lesions is huge. Misclassifications can arise from either overlooking a suspicious region or from incorrectly interpreting a suspicious region. The segmentation of breast DCE-MRI for suspicious lesions in detection is thus attractive, because it drastically decreases the amount of data that needs to be examined. The new segmentation method for detection of suspicious lesions in DCE-MRI of the breast tissues is based on artificial fishes swarm clustering algorithm is presented in this paper. Artificial fish swarm optimization algorithm is a swarm intelligence algorithm, which performs a search based on population and neighborhood search combined with random search. The major criteria for segmentation are based on the image voxel values and the parameters of an empirical parametric model of segmentation algorithms. The experimental results show considerable impact on the performance of the segmentation algorithm, which can assist the physician with the task of locating suspicious regions at minimal time.
Optimization of image quality in pulmonary CT angiography with low dose of contrast material
Authors: Assi Abed Al Nasser , Abu Arra Ali 
Published: July 2017

Abstract
Aim: The aim of this study was to compare objective image quality data for patient pulmonary embolism between a conventional pulmonary CTA protocol with respect to a novel acquisition protocol performed with optimize radiation dose and less amount of iodinated contrast medium injected to the patients during PE scanning. Materials and Methods: Sixty- four patients with Pulmonary Embolism (PE) possibility, were examined using angio-CT protocol. Patients were randomly assigned to two groups: A (16 women and 16 men, with age ranging from 19-89 years) mean age, 62 years with standard deviation 16; range, 19-89 years) - injected contrast agent: 35-40 ml. B (16 women and 16 men, with age ranging from 28-86 years) - injected contrast agent: 70-80 ml. Other scanning parameters were kept constant. Pulmonary vessel enhancement and image noise were quantified; signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were calculated. Subjective vessel contrast was assessed by two radiologists in consensus. Result: A total of 14 cases of PE (22 %) were found in the evaluated of subjects (nine in group A, and five in group B). All PE cases were detected by the two readers. There was no significant difference in the size or location of the PEs between the two groups, the average image noise was 14 HU for group A and 19 HU for group B. The difference was not statistically significant (p = 0.09). Overall, the SNR and CNR were slightly higher on group B (24.4 and 22.5 respectively) compared with group A (19.4 and 16.4 respectively), but those differences were not statistically significant (p = 0.71 and p = 0.35, respectively). Conclusion and Discussion: Both groups that had been evaluated by pulmonary CTA protocol allow similar image quality to be achieved as compared with each other’s, with optimize care dose for both protocol and contrast volume were reduced by 50 % in new protocol comparing to the conventional protocol.
Preparation of oriented bacterial cellulose nanofibers by flowing medium-assisted biosynthesis and influence of flowing velocity
Authors: Luo Honglin , Li Wei , Yang Zhiwei , Ao Haiyong , Xiong Guangyao , Zhu Yong , Tu Junpin , Wan Yizao 
Published: July 2017

Abstract
Nanofiber alignment in tissue engineering scaffolds is a crucial factor controlling the cell behavior. In this work, we report a facile approach to obtain aligned nanofibers of bacterial cellulose (BC) by forcing the culture medium of bacteria to flow along a fixed direction. The emphasis of this work was placed on the effect of flowing velocity on the alignment of the as-prepared oriented BC (OBC). X-ray diffraction (XRD) and Fourier transform infrared (FTIR) analyses indicated that the velocity affected the crystallinity and thermal stability of BC while the chemical structure did not change with the velocity. The controllable alignment of BC nanofibers makes them a promising material for the construction of biomimetic scaffolds for tissue engineering and regenerative medicine.
Spatial distribution of macroalgae along the shores of Kongsfjorden (West Spitsbergen) using acoustic imaging
Authors: Kruss Aleksandra , Tęgowski Jarosław , Tatarek Agnieszka , Wiktor Józef , Blondel Philippe 
Published: July 2017

AbstractThe identification of macroalgal beds is a crucial component for the description of fjord ecosystems. Direct, biological sampling is still the most popular investigation technique but acoustic methods are becoming increasingly recognized as a very efficient tool for the assessment of benthic communities. In 2007 we carried out the first acoustic survey of the littoral areas in Kongsfjorden. A 2.68 km2area comprised within a 12.40 km2euphotic zone was mapped along the fjord’s coast using single- and multi-beam echosounders. The singlebeam echosounder (SBES) proved to be a very efficient and reliable tool for macroalgae detection in Arctic conditions. The multibeam echosounder (MBES) was very useful in extending the SBES survey range, even though it’s ability in discriminating benthic communities was limited. The final result of our investigation is a map of the macroalgae distribution around the fjord, showing 39% macroalgae coverage (1.09 km2) of investigated area between isobaths -0.70 m and -30 m. Zonation analysis showed that most of the studied macroalgae areas occur up to 15 m depth (93%). These results were confirmed by biological sampling and observation in key areas. The potential of acoustic imaging of macrophytes, and a proposed methodology for the processing of acoustic data, are presented in this paper along with preliminary studies on the acoustic reflectivity of macroalgae, also highlighting differences among species. These results can be applied to future monitoring of the evolution of kelp beds in different areas of the Arctic, and in the rest of the world.
First records of Lacydonia eliasoni Hartmann-Schröder, 1996 (Polychaeta: Phyllodocida) in the European Arctic
Authors: Mazurkiewicz Mikołaj , Gromisz Sławomira , Legeżyńska Joanna , Włodarska-Kowalczuk Maria 
Published: July 2017

Abstract
Lacydonia (Polychaeta: Phyllodocida) is a poorly known genus containing 16 species that are sporadically collected in low densities all over the world oceans. During three cruises (in June 2014 in Ullsfjorden, northern Norway, in January 2015 in Kongsfjorden, and in June 2012 in Smeerenburg, Svalbard) nine specimens of Lacydonia eliasoni were found on sandy and muddy sediments at depths from 180 to 350 m. All specimens were incomplete and consisted of 10 to 29 chaetigers. This study presents the first record of the Lacydonia genus in the waters of Svalbard as well as the first record of L. eliasoni in coastal waters off northern Norway. This species has been reported previously in the Skagerrak and Trondheimsfjorden (southern Norway), our findings therefore may indicate a northward extension of its range, possibly due to climate changes.
Psychometric Properties of the Polish Version of the Short Grit Scale
Authors: Wyszyńska Patrycja , Ponikiewska Klaudia , Karaś Dominika , Najderska Małgorzata , Rogoza Radosław 
Published: July 2017

Abstract
This study aimed to verify the psychometric properties of the Polish version of the Grit-S questionnaire. Grit is understood here as the perseverance and passion for long-term goals, and it encompasses two dimensions: Consistency of Interest and Perseverance of Effort. The sample comprised N = 270 participants aged 18-34 (Mage = 20.79). We performed confirmatory factor analyses to verify the dimensional structure of grit, multi-group confirmatory factor analysis to compare the structure across gender, and correlation analysis to examine external validity (exploring the correlations between grit, procrastination, and well-being). Findings showed satisfactory parameters for Grit-S including: reliability, structural and external validity, and measurement invariance across gender groups. The results support the possibility of using the Grit-S questionnaire in research exploring the predictors of success.
A Seven Nations Study of Leadership Attributes
Authors: Mączyński Jerzy , Sułkowski Łukasz 
Published: July 2017

Abstract
The overall purpose of this paper was to compare a representative sample of Polish middle managers with a representative sample of chief executive officers (CEOs) from six chosen countries, in regard to selected leadership traits and behaviors. We present a small portion of data collected under the GLOBE project, Phase 3, and longitudinal research findings concerning subordinates′ assessments of Polish middle managers in relation to their attributes from 2008 to 2012. The GLOBE, Phase 3 research is the first study to investigate several thousands of CEOs and senior management teams in 24 countries, to empirically and directly assess the relationship between culture and leadership traits and behaviors. We provide research evidence that the investigated CEOs from the United States, Austria, Germany, China, and Taiwan (with the exception of Russian CEOs and Polish middle managers) were generally positively evaluated by their direct staff in regard to: inspirational, visionary, integrity, and performance-oriented leadership behaviors (constituents of charismatic leadership), team-oriented behavior, and participative leadership style. Empirical findings under the GLOBE project, Phase 3 revealed that the charismatic leadership behavior of CEOs has a huge influence on top management teams′ (TMTs) dedication to organizational goals, and is the most predictive of all leadership behaviors for TMT commitment to organizations. The analyzed research findings indicate that CEOs in Russia and Polish middle managers display strong similarities. They tend to behave in less charismatic, team-oriented, and participative ways than CEOs in the remaining countries.
Serum neopterin concentrations and tryptophan degradation pattern in patients with late stage larynx carcinoma
Authors: Engin Ayse Basak , Gunaydin Riza Onder , Kesikli Sacit Altug , Fuchs Dietmar , Hosal Ali Sefik 
Published: July 2017

AbstractAs the disease-free 5-year-survival of late stage laryngeal carcinoma patients is extremely low, indoleamine-2,3-dioxygenase-1 (IDO)-induced tryptophan degradation may represent an immune escape mechanism which plays an important role in cancer spreading in advanced stage laryngeal cancers. We examined whether the late stage laryngeal cancer enhances tumor immune evasion by the expression of systemic IDO activities and chronic cellular immune activation. Twenty-two of 42 male laryngeal cancer patients were classified as late stage cancer according to American Joint Committee on Cancer (AJCC) criteria. Their serum neopterin, tryptophan and kynurenine concentrations were compared with 30 cancer-free individuals. IDO activity was approved by correlation between serum neopterin and kynurenine/tryptophan. Late stage cancer patients preoperatively showed a significantly higher IDO activity compared to controls and early stage cancer cases. Six months after tumor removal, late stage cancer patients although having higher serum neopterin concentration compared to early stage patients or controls, they showed a significant decrease in IDO activity and tryptophan consumption. Increased systemic IDO activity may provoke the escape of tumor cells from the immune surveillance of the host. High IDO activity is due to the presence of tumor mass. Persistence of high serum neopterin levels despite tumor removal may indicate poor prognosis.