bluuebunny/crossref_metadata_2025_split huggingface dataset:
Zwitterionic structures of selenocysteine-containing dipeptides and their interactions with Cu(II) ions
Authors: Das Gunajyoti , Mandal Shilpi 
Published: April 2015

AbstractThe molecular structures of a series of selenocysteine-containing dipeptides in their zwitterionic forms were studied using the B3LYP/6-311++G(d,p) level in the aqueous phase. The B3LYP and BHandHLYP functionals in combination with 6-311++G(d,p) and LANL2DZ basis sets were used to investigate the effects of metal coordination on the structural and molecular properties of the dipeptides by complexing them with bivalent copper ions. The results from this DFT study provide valuable insights into the interaction enthalpies (metal ion-binding affinities) and free energies, the influence of the C-terminal moiety on the backbone structural features, the existence of various types of intramolecular H-bond interactions, harmonic vibrational frequencies, along with various other electronic properties pertaining to the zwitterions of the dipeptide molecules as well as their metallic complexes. Metal coordination via the carboxylate groups tends to enhance the planarity of the amide planes. The participations of the N- and C-terminal side-chain moieties in metal-binding markedly enhance the thermodynamic stability of the metalated dipeptides. The theoretical λmax values, calculated using the TD/DFT level for all the systems, well represent the occurrence of d-d transitions in the Cu-dipeptide complexes
Performance and characterisation of CeO2–TiO2–WO3 catalysts for selective catalytic reduction of NO with NH3
Authors: Li Hao , Qu Guang-Fei , Duan Yan-Kang , Ning Ping , Zhang Qiu-Lin , Liu Xin , Song Zhong-Xian 
Published: April 2015

AbstractCe-Ti-W-O
Novel pathways of interaction of maleic anhydride derivatives with phosphorus(III) compounds: synthesis and characterisation of N,N,N′,N′ -tetraethyl-2,3-diphenylbut-2-enediamide and 3-dihydrofuranylidene-4-phosphorylidene–oxolane-2,5,5′-trione
Authors: Musin Lenar I. , Bogdanov Andrei V. , Krivolapov Dmitry B. , Dobrynin Alexey B. , Musin Rashid Z. , Khrustalev Viktor N. , Mironov Vladimir F. 
Published: April 2015

AbstractMaleic anhydride undergoes C-phosphorylation under the action of tris(diethylamino)phosphine to afford 3-dihydrofuranylidene-4-phosphorylidene-oxolane-2,5,5′-trione whereas 2,3-diphenylmaleic anhydride under the same conditions turns into N,N,N′,N′-tetraethyl-2,3-diphenylbut-2-enediamide. The latter reaction can serve as a novel approach for the synthesis of dicarboxylic acids diamides from corresponding cyclic anhydrides. Their structures were established by NMR and X-ray diffraction.
Comparison of actual evaporation from water surface measured by GGI-3000 evaporimeter with values calculated by the Penman equation
Authors: Kohu Mojmír , Rožnovský Jaroslav , Knozová Grazyna 
Published: April 2015

Abstract
Information about water evaporation is essential for the calculation of water balance. Evaporation, however, is a very complex physical process and it is therefore difficult to quantify. Evaporation measurements from the weather station network of the Czech Hydrometeorological Institute between 1968 and 2011 were performed using the evaporimeter GGI-3000. Evaporation was calculated using modified standard method based on FAO. The aim of the article was to compare the measured values and calculations. It has been found that the evaporation values from water surface calculated using the empirical equation are usually higher than the measured values by on average 0.8 mm, in extreme cases even 6.9 mm. The measured data shows higher variability than the calculated values, which means that correlations between series are not strong, the correlation coefficient being 0.7. Nevertheless the findings can be used for homogenization of series measured by the GGI-3000 evaporimeter.
Spatial expression of potential wind erosion threats to arable soils in the Czech Republic
Authors: Spáčilová Bronislava , Středa Tomáš , Thonnová Pavlína 
Published: April 2015

Abstract
Wind erosion risk strongly depends on soil surface conditions. Aridity or dryness of the climate in the Czech Republic is a typical property for Southern Moravia and Central Bohemia. The study aims to map and assess qualitatively the areas vulnerable to wind erosion using available data and intelligible methodology. The evaluation is based on the number of days when at least once a day dry condition of bare soil surface was recorded. Daily data of soil surface state from 70 climatological stations to 500 m altitude from 1981 to 2010 are used. First, soil conditions from 1st March to 30th April and from 1st September to 31st October were evaluated. Evaluation of erosion risk in May is presented separately in the second phase, because only thermophilous crops (late-sowing crops) can be affected in that time. The results show that mainly in the South and Southeast Moravia, there are areas where up to 60 days with dry soil surface in the spring and autumn occurred. Occurrence of such conditions may represent potential risk of wind erosion for arable soils and therefore potential risk for sown crops and loss of fertile soil surface which is irreplaceable for agricultural activities. The results are applicable for preparation of a concept of wind erosion control measures in the threatened regions.
Positivity criteria for log canonical divisors and hyperbolicity
Authors: Lu Steven S. Y. , Zhang De-Qi 
Published: April 2015

Abstract
Let X be a complex projective variety
and D a reduced divisor on X.
Under mild conditions on the singularities
of

(
X
,
D
)

$(X,D)$

, which includes the case of smooth
X with simple normal crossing D, and by running
the minimal model program,
we obtain by induction on dimension via adjunction
geometric criteria guaranteeing various positivity
conditions for

K
X

+
D

$K_{X}+D$

.
Our geometric criterion for

K
X

+
D

$K_{X}+D$

to be numerically effective yields also
a geometric version of the cone theorem
and
a criterion for

K
X

+
D

$K_{X}+D$

to be pseudo-effective
with mild hypothesis on D.
We also obtain,
assuming the abundance conjecture and
the existence of rational curves on Calabi–Yau manifolds,
an optimal geometric sharpening of the Nakai–Moishezon
criterion for the ampleness of a divisor of the form

K
X

+
D

$K_{X}+D$

,
a criterion verified under a canonical hyperbolicity assumption on

(
X
,
D
)

$(X,D)$

. Without these conjectures, we verify
this ampleness criterion with mild assumptions on D, being none in
dimension two and

D
≠
0

$D\neq 0$

in dimension three.
Knowledge Management in the Project Life Cycle - Initial Research on Polish Smes
Authors: Łapuńka Iwona , Pisz Iwona 
Published: April 2015

Abstract
Contemporary organizations run their activities in an environment, which might be defined as fully uncertain and turbulent. Due to variations that occur in the surrounding environment, an increased attention of management practitioners and theoreticians is paid to new management concepts frequently in an integrated version. The authors express a deep belief that consolidation of approaches to project management and knowledge management constitutes a response to challenge for modern organizations. Research into the issue was based on an attempt to determine significance of the knowledge management issue in a life of projects performed by Polish small and medium-sized enterprises (SMEs). Systemizing of desired knowledge management results in a project, from the point of view of its crucial success factors, is essentially substantiated in providing success of projects performed.
Preliminary research included SMEs in construction engineering industry. The enterprises perform project- driven orders or apply a project approach in economic activities that they execute. Research conducted by the authors so far, implies, that the SME sector is characterized by a particularly low efficiency in project management. Hypothetic assumptions indicate that one of the main reasons of reaching an unsatisfactory level of project proficiency shaped mainly by processes of synchronizing and coordination of project activities, is an insufficient level of development of social, organization and technological systems and methods of capitalization, as well as transmission of useful project management knowledge.
Essential function is performed by a group of selected respondents - 25 enterprises from the group of SMEs, including 5 micro enterprises, 12 small enterprises, and 8 medium-sized enterprises. Analyses performed so far, take into consideration the economic situation of SMEs in Poland.
“Tengo Famiglia”: The Family as a Metaphor of Corruption in Italy
Authors: Torsello Davide 
Published: April 2015

Abstract
In this article I will pursue two goals: the first is to outline how the family works as a metaphor in public discourses on corruption; the second is to consider some aspects in social anthropology that have influenced the creation of theoretical paradigms on corruption through the analytical filter of kinship. The final idea of this article is that the metaphor of the family, although not new in the context of corruption, serves to create cognitive schemas of reference that simplify and banalise the debate on corruption, by diverting attention from its true nature. The persistence of the importance of the metaphor of “I have a family” may imply new forms and meanings of corruption in Italy, including the importance of the mechanisms of social exchange, the practice of building symbolic relationships and the change in social roles and power within these dynamics and transactions.
Refurnishing the Home in Post-War Neoliberalism: Consumption Strategies in the Sarajevan Household Economy
Authors: Lofranco Zaira Tiziana 
Published: April 2015

Abstract
This article ethnographically explores the consumption practices and strategies of Sarajevan households, framing them in the economic and socio-cultural dynamics that affected family life following the war and post socialist transformation. Displacement and the collapse of the socialist economic system led to Sarajevans suffering downward socio-economic mobility and widespread mistrust of the world outside. Despite the material issues that could be moral justification for the consumption strategies driven by strict necessity and familism, this article will consider how (humanitarian and interpersonal) donations and credits are used to convey a sort of symbolic reappropriation of the home and to strive to reposition the household’s socio-economic status. Ultimately the article takes into account how these consumption strategies reshape social relations within and outside the family in the peculiar conjuncture of post-war neoliberalism
Sports: Faster, Higher, Stronger, and Public Relations
Authors: Tamir Ilan , Hilik Limor Yehiel , Galily Yair 
Published: April 2015

Abstract
Sport in the modern age is both politics and business. In a combined world of politics, business, hatred, jealousy and boastfulness, in which each person aims to achieve his objective while “disregarding all the rules,” as Orwell describes, public relations are a valuable strategic and tactical weapon. Success is not measured on the sports field alone, but in the newspaper headlines, on the television and the computer screens and in the bank account. The motto once proposed by Baron Pierre de Coubertin-“Citius, Altius, Fortius” (faster, higher, stronger)-is slowly clearing the way for a new, more updated motto: “Faster, higher, stronger, bigger (business) and especially-more PR.”
Rule-Following, Meaning Constitution, and Enaction
Authors: Presti Patrizio Lo 
Published: April 2015

Abstract
The paper submits a criticism of the standard formulation of Wittgenstein’s rule-following paradox. According to the standard formulation, influenced by Kripke, the paradox invites us to consider what mental or behavioral items could constitute meaning. The author proposes instead an enactivist understanding of the paradox. On this account there is no essential gap between mental items and behavioral patterns such that the paradox enforces a choice between meaning being constituted either internally ‘in mind,’ or externally ‘in behavior.’ The paper begins with an introduction to the paradox and then presents arguments against standard solutions. It ends with the enactivist proposal, admitting that although much more needs to be said before it can be established as a full-fledged alternative, it nonetheless holds some promise both for revising our understanding of the paradox and for the formulation of a novel solution.
Comparison of time-series registration methods in breast dynamic infrared imaging
Authors: Riyahi−Alam S. , Agostini V. , Molinari F. , Knaflitz M. 
Published: April 2015

AbstractAutomated motion reduction in dynamic infrared imaging is on demand in clinical applications, since movement disarranges time−temperature series of each pixel, thus originating thermal artifacts that might bias the clinical decision. All previously proposed registration methods are feature based algorithms requiring manual intervention. The aim of this work is to optimize the registration strategy specifically for Breast Dynamic Infrared Imaging and to make it user−independent. We implemented and evaluated 3 different 3D time−series registration methods: 1. Linear affine, 2. Non−linear Bspline, 3. Demons applied to 12 datasets of healthy breast thermal images. The results are evaluated through normalized mutual information with average values of 0.70 ±0.03, 0.74 ±0.03 and 0.81 ±0.09 (out of 1) for Affine, Bspline and Demons registration, respectively, as well as breast boundary overlap and Jacobian determinant of the deformation field. The statistical analysis of the results showed that symmetric diffeomorphic Demons’ registration method outperforms also with the best breast alignment and non−negative Jacobian values which guarantee image similarity and anatomical consistency of the transformation, due to homologous forces enforcing the pixel geometric disparities to be shortened on all the frames. We propose Demons’ registration as an effective technique for time−series dynamic infrared registration, to stabilize the local temperature oscillation.
Ultrasonic IR thermographic inspection of graphite epoxy composite: a comparative study of piezoelectric and magnetostrictive stimulation
Authors: Swiderski W. , Vavilov V. 
Published: April 2015

AbstractIn this paper the experimental results of piezoelectric and magnetostrictive ultrasonic stimulation are comparatively analyzed in the evaluation of impact damage in a graphite epoxy composite sample chosen for a round robin test. By comparing theoretical and experimental results, it is shown that the equivalent power of internal friction can reach some hundreds mill watt per a single crack.
Liquid crystal dual-mode band-pass filter with improved performance
Authors: Torrecilla J. , Marcos C. , Urruchi V. , Sánchez-Pena J.M. , Chojnowska O. 
Published: April 2015

AbstractOver the last twenty years, there has been a growing interest in the design of tunable devices at microwave frequencies by us- ing liquid crystals technology. In particular, the use of liquid crystals with high dielectric anisotropy allows manufacturing voltage-controlled devices to operate in a wide frequency range. In this work the frequency response of a liquid crystal band-pass filter with dual-mode microstrip structure has been studied in depth by using a simulation software tool. A reshap- ing of a conventional dual-mode square patch resonator bandpass filter with a square notch, studied in the literature, has been proposed with the goal of improving the filter performance. The main features achieved are a significant increase in the return loss of the filter and a narrowing of a 3-dB bandwidth. Specifically, a reduction in the filter bandwidth from 800 MHz to 600 MHz, which leads to a return loss increase from 6 dB to 12.5 dB, has been achieved. The filter centre frequency can be tuned from 4.54 GHz to 5.19 GHz.
Beyond Digital Dwelling: Re-thinking Interpretive Visualisation in Archaeology
Authors: Watterson Alice 
Published: April 2015

AbstractArchaeology is a visually rich discipline with a long history of utilising images across a
variety of contexts within its practice. However, due to the often unavoidably subjective nature of visual
interpretation, fundamental issues with its application remain problematic and largely unresolved.
Furthermore, in recent years the rising dominance of digital techniques for archaeological threedimensional
surveys and interpretive visualisation has resulted in a rapid uptake of emerging technologies
without adequate assessment of their impact on the interpretive process and practitioner engagement.
Using an example from experimental work in Orkney as a springboard for discussion this paper outlines
the need for the field to develop a more practical approach to addressing some of these recurring issues
by developing methodologies which more accurately reflect the multi-layered, interpretive and ambiguous
processes involved in archaeological interpretation.
Metaphor Evaluation of Leadership Styles: A Case Study of Presidential New Year Greetings
Authors: Arcimaviciene Liudmila , Jonaitiene Vida 
Published: April 2015

AbstractBy using the analytical framework of Critical Metaphor Analysis (CMA) and procedurally employing
Pragglejaz Group’s Metaphor Identification Procedure (MIP), this study aims at evaluating metaphor use in
the narrative of presidential New Year greetings of twelve political leaders. The evaluation of the identified 409
metaphoric clusters has demonstrated that different political leaders evoke two power skills within the ethical
dimension: hard and soft. Furthermore, it has been clarified that hard power leadership is more varied at its
three conceptual levels of semantic representation: pragmatic, intermediary and transactional. The clarified
metaphoric utterances have revealed that female leaders are more democratic in their conceptualisation and
linguistic preferences than their male counterparts, i.e. the male leaders tend to prioritise competitive forcefulness
over cognitive empathy and community concerns, while the female leaders tend to emphasize the importance of a
unified and compassionate approach to solving social and political problems.
Open-source benchmarking for learned reaching motion generation in robotics
Authors: Lemme A. , Meirovitch Y. , Khansari-Zadeh M. , Flash T. , Billard A. , Steil J. J. 
Published: April 2015

AbstractThis paper introduces a benchmark framework to evaluate the performance of reaching motion generation approaches that learn from demonstrated examples. The system implements ten different performance measures for typical generalization tasks in robotics using open source MATLAB software. Systematic comparisons are based on a default training data set of human motions, which specify the respective ground truth. In technical terms, an evaluated motion generation method needs to compute velocities, given a state provided by the simulation system. This however is agnostic to how this is done by the method or how the methods learns from the provided demonstrations. The framework focuses on robustness, which is tested statistically by sampling from a set of perturbation scenarios. These perturbations interfere with motion generation and challenge its generalization ability. The benchmark thus helps to identify the strengths and weaknesses of competing approaches, while allowing the user the opportunity to configure the weightings between different measures.
The dynamics of neural activation variables
Authors: Reimann Hendrik , Lins Jonas , Schöner Gregor 
Published: April 2015

AbstractThis paper presents a comprehensive and detailed analysis of the elementary building blocks of neurally inspired architectures for cognitive robotics. It provides a brief outline of the fundamental principles by which biological nervous systems link to the environment in terms of perception, cognition, and behavior. We describe a class of dynamic neural activation variable based on these principles. We show that these dynamic neurons have the appropriate stability properties.Adding even simple connections between a small number of nodes is sufficient to constitute systems that make important decisions. Going through these mechanisms in detail, this paper should facilitate the design of neurally inspired architectures for behavior generation in robotic agents.
Advances in Ruthenium Catalysed Hydrogen Release from C1 Storage Materials
Authors: van der Waals Dominic 
Published: April 2015

AbstractRecent years have seen an increasing demand for fossil-fuels and consequent mounting damage to the environment. With this increasing demand the need for a renewable alternative source of energy is required. Hydrogen has been highlighted as an interesting alternative energy carrier showing both practical and economic advantages, particularly when used in conjunction with a hydrogen fuel cell [1]. Whilst there has been much progression in the clean and renewable production of hydrogen through; biomass gasification, photoelectrolysis and also electrolysis using energy derived from renewable sources [2,3], a challenge remains for the storage and delivery of hydrogen for small and mobile applications. This mini-review discusses a range of viable C1 hydrogen storage materials and focuses on the key publications, as well as recent additions to the literature, related to the ruthenium catalysed release of hydrogen as this is one of most intensively researched areas of the field. Current progress in the homogeneous ruthenium catalysed reduction of CO2 is also discussed.
Effect of silver on the catalytic hydrodechlorination of tetrachloromethane over silica-supported palladium-silver catalysts
Authors: Bonarowska Magdalena , Kaszkur Zbigniew , Karpiński Zbigniew 
Published: April 2015

AbstractTwo silica-supported palladium based catalysts characterized by overall metal loadings 10 wt.%, and atomic Pd : Ag ratios of 100 : 0 and 70 : 30, were prepared by incipient wetness impregnation, subjected to reduction in hydrogen and characterized by XRD. It was found that incipient wetness co-impregnation of silica resulted in the formation of a catalyst characterized by relatively small metal crystallites (~11 nm) and significant extent of Pd-Ag alloying. The catalytic performance was investigated in the hydrodechlorination of tetrachloromethane in the gas phase. Silver addition to palladium in the co-impregnated catalysts had very pronounced effect, vastly decreasing the overall activity (conversion) and also the selectivity towards hydrocarbons, propensity characteristic for the monometallic palladium catalysts working in CCl4 hydrodechlorination carried out in the gas phase. Instead, large amounts of C2HxCly dimeric products were formed. These dimers are considered as possible coke precursors. Post-reaction samples of both catalysts contained large amount of carbon which entered the Pd and Pd-Ag phases. This carbon can be easily removed by treatment with hydrogen at 450ºC.