bluuebunny/crossref_metadata_2025_split huggingface dataset:
To disseminate is to act: Readers’ theatre in HIV/AIDS community-based research
Authors: Mignone Javier , Harvey Carol D. H. , Elliott Lawrence , Davis Jennifer , Pindera Carla , Migliardi Paula 
Published: February 2015

Abstract
This community-based study sought to understand the caregiving support networks of people living with HIV/AIDS in Winnipeg and Regina, Canada. Qualitative data from 31 participants were gathered from photographs that each individual took of daily life and from in-depth individual interviews. A novel dissemination approach was the creation and performance of a readers’ theatre based on the interview data. This article explains the process of creating and using readers’ theatre with HIV/AIDS service agencies and community members, and it discusses main lessons learned.
Silenced: The impact of mental health themed artwork in a workplace setting
Authors: Tischler Victoria 
Published: February 2015

Abstract
This article discusses the controversy surrounding the display of artwork in a workplace where mental health research and teaching takes place. The exhibition of artwork by a deceased mental health service user provoked strong reactions amongst staff and began a dialogue about the impact of the work on viewers. I review issues of autobiographical artwork, mental health recovery and censorship. Whilst the display of art with potentially distressing themes can be illuminating and an important mode of social inclusion, negotiating the location of exhibitions and providing support for staff who may be affected by the work must be considered.
Dyspraxia, drama and masks: Applying the school curriculum as therapy
Authors: Roy David , Dock Caroline 
Published: February 2015

Abstract
Internationally one in fifteen children have suspected dyspraxia. In the United Kingdom, New Zealand and the United States, speech and occupational therapists and physiotherapists all agree that early intervention can help children with dyspraxia overcome these challenges and be successful participants in education and the wider society. Key to successful learning experiences for children with dyspraxia, drama and mask usage offers the tools to access the curriculum. Because drama is a collaborative, not competitive, methodology, the fear of rejection and failure can be challenged and through development of strengths in academia can support children. This article presents background on dyspraxia, signifiers for identification for children with dyspraxia, challenges facing schools, and practical activities to apply within the curriculum.
Non Expensive 3D Documentation and Modelling of Historical Object and Archaeological Artefacts by Using Close Range Photogrammetry
Authors: Pavelka Karel , Řezníček Jan , Bílá Zdeňka , Prunarová Lucie 
Published: February 2015

Nowadays, there are two main approaches to cultural heritage documentation: a precise documentation by several techniques such as professional close range photogrammetry, classical geodetical measurement and 3D scanning, or a simple documentation using non expensive devices and instruments, often based on free software. In many projects it is not possible to use precise and expensive instruments for time, transportational, financial and authoritative permission reasons. At the Laboratory of Photogrammetry at the CTU Prague, we are focused on both types of documentation and the necessary visualisation of outputs; the long-term and very important aim of our research in this field is to develop small, inexpensive devices and test appropriate technology for the 3D documentation of cultural heritage objects. There is our prototype of an optical correlation system, which uses a motorised calibrated digital camera on a linear base. The second part shows several open source photogrammetric systems compared with Photomodeler PMSC and Agisoft Photoscan software. On a case project, based on our own data from German-Czech expeditions in Peru, the simple photogrammetric documentation of a small archaeological object joined with reverse engineering has been demonstrated.
Geostatistical Methods in R
Authors: Volfová Adéla , Šmejkal Martin 
Published: February 2015

Geostatistics is a scientific field which provides methods for processing spatial data. In our project, geostatistics is used as a tool for describing spatial continuity and making predictions of some natural phenomena. An open source statistical project called R is used for all calculations. Listeners will be provided with a brief introduction to R and its geostatistical packages and basic principles of kriging and cokriging methods. Heavy mathematical background is omitted due to its complexity. In the second part of the presentation, several examples are shown of how to make a prediction in the whole area of interest where observations were made in just a few points. Results of these methods are compared.
Microwave Material Properties of Nanoparticle-Doped Nematic Liquid Crystals
Authors: Karabey O. H. 
Published: February 2015

AbstractThis letter presents the material properties of nanoparticle-doped liquid crystal (LC) mixtures at microwave frequencies. A host (undoped) nematic LC material is doped with several concentrations of ferroelectric, gold and silver nanoparticles. The measurements are conducted at 30 GHz by using a cavity perturbation method. Based on these measurements, relative permittivity and dielectric losses are extracted, then the resultant material tunability and figure-of-merit are calculated. Compared to the host LC, some changes in the electrical parameters of the doped samples are observed, reducing the tunability and material figure-of-merit of all samples. Nevertheless, depending on the shape of the nanoparticles, their impact on the material figure-of-merit is more significant than on the tunability, reducing the figure-of-merit drastically once the tunability changed slightly only.
The reaction of dimethyldioxirane with 1,3-cyclohexadiene and 1,3-cyclooctadiene: monoepoxidation kinetics and computational modeling
Authors: McTush-Camp Davita , Vasquez Pedro C. , Baumstark Alfons L. 
Published: February 2015

Abstract
The reaction of dimethyldioxirane (1) with excess 1,3-cyclohexadiene (2a) and 1,3-cyclooctadiene (2b) in dried acetone yielded the corresponding monoepoxides in excellent yield. Second-order rate constants for monoepoxidation were determined using UV methodology. The k2 value for the monoepoxidation of 1,3-cyclohexadiene was found to be 1.14±0.06 m
-1 s-1, whereas that for the monoepoxidation of 1,3-cycloctadiene was 0.31±0.03 m
-1 s-1. Basic density functional calculations at the B3LYP/6-31G level were employed to model the monoepoxidations. As expected, the calculations were consistent with a concerted, electrophilic process with a spiro-transition state. As found for the epoxidation of simple alkenes, the calculated transition-state geometry showed a slight asynchronous tilt of the dioxirane plane relative to that of the remaining alkene portion of the diene and a slight tilt back from the face of the diene. Relative reactivities (relative k2 values) were determined using the difference in the calculated electronic activation energies and were consistent with the experimental relative k2 values without the need to correct for the medium (solvent). Reactivity differences for epoxidation can be quickly predicted by this approach as long as there are reasonable structural similarities between the substrates.
Numerical Prediction of the Thermodynamic Properties of Ternary Al-Ni-Pd Alloys
Authors: Zagula-Yavorska Maryana , Romanowska Jolanta , Kotowski Sławomir , Sieniawski Jan 
Published: February 2015

AbstractThermodynamic properties of ternary Al-Ni-Pd system, such as exGAlNPd, µAl(AlNiPd),µNi(AlNiPd) and µPd(AlNiPd) at 1,373 K, were predicted on the basis of thermodynamic properties of binary systems included in the investigated ternary system. The idea of predicting exGAlNiPd values was regarded as calculation of values of the exG function inside a certain area (a Gibbs triangle) unless all boundary conditions, that is values of exG on all legs of the triangle are known (exGAlNi, exGAlPd, exGNiPd). This approach is contrary to finding a function value outside a certain area, if the function value inside this area is known. exG and LAl,Ni,Pd ternary interaction parameters in the Muggianu extension of the Redlich–Kister formalism were calculated numerically using the Excel program and Solver. The accepted values of the third component xx differed from 0.01 to 0.1 mole fraction. Values of LAlNiPd parameters in the Redlich–Kister formula are different for different xx values, but values of thermodynamic functions: exGAlNiPd, µAl(AlNiPd), µNi(AlNiPd) and µPd(AlNiPd) do not differ significantly for different xx values. The choice of xx value does not influence the accuracy of calculations.
Sewage Treatment with a Hybrid Constructed Soil Filter
Authors: Llorens Mercedes , Pérez-Marín Ana B. , Sáez José , Aguilar María I. , Ortuño Juan F. , Meseguer Víctor F. , Ruiz Jose A. 
Published: February 2015

Abstract
The overall aim of this research was to apply a hybrid constructed soil filter for sewage treatment. A hybrid constructed soil filter is an ecological process used for decentralized sewage treatment in villages, small towns or scattered residential areas. Sewage is firstly treated by conventional physicochemical or biological treatment and then allowed to infiltrate through aerated unsaturated zone wherein it gets purified through processes such as filtration, adsorption, chemical reaction and biodegradation. This system has demonstrated a consistent capacity to remove organic matter and nitrogen. Experimental results have shown that under hydraulic load rates of 0.22 m3/m2 · h and organic load rates ranging from 47 to 156 g COD/m2 · h, mean removal efficiencies of 89% for COD, 99% for BOD5, 86% for suspended solids and 52% for total nitrogen can be achieved using an hybrid constructed soil filter. Compared to the conventional activated sludge process, this technology has many advantages, such as simple construction, low operation and maintenance costs, as well as a simple operation.
Measuring Bilateral Market Power in International Markets of Vertically Differentiated Agricultural Commodities
Authors: Yamaura Koichi , Xia Tian 
Published: February 2015

AbstractTwo features of international markets of agricultural commodities are bilateral market power of exporting and importing countries and the coexistence of non-genetically modified (non-GM) and genetically modified (GM) products. The two features were not taken into account in most extant studies on market power in international agricultural commodity markets. This research develops a bilateral oligopoly model with the interaction between non-GM and GM commodity and conducts an empirical estimation for U.S.–Japan soybean trade. The estimation results show that U.S. exporters and Japanese importers are almost equally sharing the dominance of market power. The analysis in this research provides new measures of market power and improves the understanding on world soybean markets.
Erratum to “On the strong metric dimension
of the strong products of graphs”
Authors: Kuziak Dorota , Yero Ismael G. , Rodríguez-Velázquez Juan A. 
Published: February 2015

Abstract
The original version of the article was published in Open Mathematics (formerly Central European Journal
of Mathematics) 13 (2015) 64–74. Unfortunately, the original version of this article contains a mistake: in
Lemma 2.17 appears that for any C1-graph G and any graph H, β (G ⊠ H) ≤ β (G)(β(H)+1), while should
be β (G ⊠ H) ≤ β(H) (β(G)+1). In this erratum we correct the lemma, its proof and some of its consequences.
Modelling aquatic communities: Trophic interactions and the body mass-and-age structure of fish populations give rise to long-period variations in fish population size
Authors: Medvinsky Alexander B. , Nurieva Nailya I. , Rusakov Alexey V. , Bobyrev Alexander E. , Burmensky Vladimir A. , Kriksunov Evgeniy A. 
Published: February 2015

AbstractWe present a mathematical model of an aquatic community, which includes zooplankton and fish reproduction, and age-weight-structured trophic relationships. We show that interactions between separate components of the aquatic community can give rise to long-period oscillations in fish population size. The period of these oscillations is on the order of decades.We show that predatory fish can be an element, which gives rise to the long-period oscillations. With this model we also show that an increase in the zooplankton growth rate may entail a sequence of bifurcations in the fish population dynamics: steady states → regular oscillations → quasicycles → dynamic chaos. Since aquatic, and in particular, lake ecosystems are spatially heterogeneous, they are often considered as consisting of separate habitats, which are distinguished by their hydrophysical and ecological characteristics. We show that interhabitat fish migration can lead to dramatic changes in the fish population dynamics. In particular, the fish migration can destabilize both stationary states and chaotic regimes giving rise to regular and quasiregular oscillations in the fish population size.
Methanolothermale Synthese von Rb3AsSe4 · 2Se6 und Cs3AsSe4 · 2Cs2As2Se4 · 6Te4Se2, zwei Selenidoarsenate mit sechsgliedrigen Chalkogenringen/ Methanolothermal Synthesis of Rb3AsSe4 · 2Se6 and Cs3AsSe4 · 2Cs2As2Se4 · 6Te4Se2. Two Selenidoarsenates with Six-Membered Chalcogen Rings
Authors: Wachhold M. , Sheldrick W. S. 
Published: February 2015

Abstract
The methanolothermal reaction of Rb2CO3 with As2Se3 and black selenium leads to the formation of Rb3AsSe4 and the new selenidoarsenate(V) Rb3AsSe4 · 2Se6 (1), which crystallizes in the cubic space group Fd3̄ (No. 203) with a = 16.660(2) Å, V = 4624.1(1) Å , Z = 8. The structural features are isolated tetrahedral AsSe4
3- anions and Se6 rings in a chair conformation. Whereas the similar reaction with Cs2CO3 only affords the known selenides Cs3AsSe4 and Cs4Se16, replacement of As2Se3 by As2Te3 leads to a compound with similar lattice constants to 1 (Fd3̄, a = 17.275(2) A), containing disordered AsSe4
3- and As2Se4
2- anions, the latter of which exhibit a four-membered As2Se2 ring with m-positioned terminal selenium atoms. The six-membered chalcogen ring is likewise disordered with Se and Te site occupation factors of respectively 0.333 and 0.667 with the result that 2 can be formulated as Cs3AsSe4 · 2Cs2As2Se4 · 6Te4Se2. 2 provides the first example of a TexSe6-x ring to be characterized in the solid state.
The Perovskite Carbides A3MC (A = Sc, Y, La - Nd, Sm, Gd - Lu; M = AI, Ga, In, Tl, Sn, Pb)
Authors: Gesing Thorsten M. , Wachtmann Klaus H. , Jeitschko Wolfgang 
Published: February 2015

Abstract
Twentyfive new perovskite carbides have been obtained either by arc-melting cold-pressed pellets of the elemental components with subsequent annealing at 900 °C or by heating stoichiometric quantities of the elements in a high-frequency furnace. Also, thirtyseven compounds of this structure type are confirmed and their lattice constants are reported. The crystal structures of SC3MC (M = Al, Ga, In, Tl) were refined from X-ray powder data, and in all cases only the octahedral voids formed by scandium atoms were found to be fully occupied. The hydrolysis of the carbides Sc3GaC, Y3SnC, Y3PbC and Ho3PbC with diluted hydrochloric acid resulted in about 84 - 97 (wt-)% methane and 3 - 16 % saturated and unsaturated higher hydrocarbons. The cell volumes of the ternary carbides A3MC and the corresponding binary Cu3Au type compounds A3M are compared and several inconsistencies are pointed out.
(CuI)2P14: ein neues Phosphorpolymer in einer Kupferhalogenid-Matrix /(CuI)2P14: a Novel Phosphorus Polymer in a Copper Halide Matrix
Authors: Pfitzner Amo , Freudenthaler Eva 
Published: February 2015

Abstract
(CuI)2P14 is a new adduct of copper iodide to a neutral phosphorus polymer. It is obtained by reaction of Cul and Pred at 400 °C. The compound crystallizes monoclinically, space group P21/c (No. 14), a = 9.919(2), b = 9.718(2), c = 16.478(3) Å, β = 105.71(1)°, V = 1529.0(7) Å3, with Z = 4. The crystal structure was refined to R1 = 0.029 for 2680 reflections and 173 parameters. It contains a new polymeric phosphorus allotrope with the translational unit P14
±0 consisting of experimentally unknown [P12] groups which are linked by [P2] fragments. The phosphorus rods consist of five-and six-membered rings, and are coordinated only by copper atoms.
Gold Coordination by a Tertiary Phosphine with Three Thioether Functions
Authors: Fuchs Stefan , López-de-Luzuriaga José M. , Olmos M. Elena , Sladek Alexander , Schmidbaur Hubert 
Published: February 2015

Abstract
The reaction of tris(phenylthiomethyl)phosphine with equimolecular amounts of [AuPPh3]+[BF4]- affords the complex (tris(phenylthiomethyl)phosphine)(triphenylphosphine)- gold(I) tetrafluoroborate 1 in good yield. The X-ray diffraction analysis of this product shows an unusual conformation with the three ChLSPh arms of the phosphine folded back towards the metal atom shielding the P-Au-P′ unit. The reaction of the same substrate with Bis(tetrahydrothiophene)gold(I) perchlorate in a 1:1 molar ratio leads to the displacement of both weakly coordinated tht ligands, and a dimeric product [AuP(CH2SPh)3]2(ClO4)2 2 is obtained.
Zwölfgliedrige Heteroborancluster durch Copyrolyse von Tetrachlordiboran(4) mit Elementhalogeniden/ Twelve-Vertex Heteroborane Clusters by Copyrolysis of Tetrachlorodiborane(4) and Element Halides
Authors: Einholz Wolfgang , Schäfer Ronald , Keller Willi , Vogler Bernhard 
Published: February 2015

Abstract
The perchlorinated arsaboranes closo-1,2-As2B10Cl10 and As4B8C16 are formed in the co­ pyrolysis of B2C14 and AsCl3 at temperatures of 330-450°C. The icosahedral structure of closo-1,2-As2B10Cl10 is confirmed by 11B-11B-COSY-NMR spectroscopy. As4B8Cl6 is suppo­ sed to be a conjuncto-borane (As2B4Cl3)2 with two boron-boron linked As2B4Cl3 octahedra. The copyrolysis of B2Cl4 andSbCl3 or SbCl5 yields Sb2B10Cl10, and the corresponding reaction of B2Cl4 with S2Cl2 gives the icosahedral thiaborane cluster SB11Cl11 .
Er5Re2C7, Tm5Re2C7, and Lu5Re2C7 with Sc5Re2C7 Type, and Yb2ReC2 with Pr2ReC2 Type Structures
Authors: Pöttgen R. , Wachtmann K. H. , Jeitschko W. , Lang A. , Ebel T. 
Published: February 2015

Abstract
Er5Re2C7, Tm5Re2C7, and Lu5Re2C7 were prepared by arc-melting of the elemental components and subsequent annealing at 800 °C. Er5Re2C7 forms only after the annealing process, whereas the other two carbides were already present in the as cast samples. They crystallize with a Sc5Re2C7 type structure, which was refined from single-crystal X-ray data of Lu5Re2C7: Cmmm, a = 791.44(5), b = 1418.08(8), c = 332.79(2) pm, Z = 2, R = 0.037 for 544 structure factors and 21 variable parameters. The structure contains linear centrosymmetric C3 units with a C-C bond length of 133(2) pm and isolated carbon atoms in octahedral coordination of four lutetium and two rhenium atoms. The rhenium atoms within the two-dimensionally infinite polymeric sheets [Re2C4]n are electronically saturated as is indicated by the diamagnetism and the semiconductivity of this carbide. Yb2ReC2 was prepared by reacting the elements in a sealed tantalum tube with a high-frequency furnace. It crystallizes with a Pr2ReC2 type structure: Pnma, a = 645.91(6), b = 498.64(6), and c = 966.05(6) pm. Magnetic susceptibility measurements indicate the ytterbium atoms to be trivalent in this compound.
Phosphanimin- und Phosphaniminato-Komplexe des Zinks. Kristallstrukturen von [ZnCl2(Me3SiNP(CH2)4CMe3)]2, [ZnI2(Me3SiNPEt3)]2, [ZnI2{Me2Si(NPEt3)2}] und [ZnBr(NPMe3)]4· CH2Cl2/ Phosphaneimine and Phosphoraneiminato Complexes of Zinc. Crystal Structures of [ZnCl2(Me3SiNP(CH2)4CMe3)]2, [ZnI2(Me3SiNPEt3)]2, [Znl2{Me2Si(NPEt3)2}], and [ZnBr(NPMe3)]4· CH2Cl2
Authors: Krieger Matthias , Harms Klaus , Magull Jörg , Dehnicke Kurt 
Published: February 2015

Abstract
The donor-acceptor complexes [ZnCl2(Me3SiNP(CH2)4CMe3)]2 (1)and [ZnI2(Me3SiNPEt3)]2 (2) have been prepared from the zinc dihalides and the corresponding silylated phosphaneimines in CH2Cl2. Thermolysis of 2 leads to the formation of [ZnI2(Me2Si(NPEt3)2)] (3). Znl2 and ZnBr2 react with the silylated phosphaneimines Me3SiNPR3(R = Me, Et) in the presence of NaF at elavated temperatures to give the phosphoraneiminato complexes [ZnI(NPEt3)]4 (4), [ZnBr(NPMe3)]4 (5) and [ZnBr(NPEt3)]4 (6), respectively, which according to the IR spectra and to a crystal structure determination of 5 form heterocubane structures. The corresponding reactions with the more bulky phosphaneimine Me3SiNP(CH2)4CMe3 do not lead to a phosphoraneiminato complex of zinc.
1: Space group P21/n, Z = 2; lattice dimensions at -60 °C: a = 903.3(2), b = 1217.9(3), c = 1591.6(2) pm, β = 93.94(1)°, R = 0.031.
2: Space group P21/n, Z = 2; lattice dimensions at -70°C: a = 947.9(2), b = 1219.2(2), c - 1527.1(2) pm, 0 = 91.17(1)°, β = 0.045.
1 and 2 form centrosymmetric dimeric molecules via Zn2X2 bridges (X = Cl, I); bond lengths Zn-N = 198.7(2) pm (1) and 199.0(6) pm (2).
3: Space group P412121 Z = 8; lattice dimensions at -90°C: a = b = 965.4(1), c = 2796.9(2) pm, R = 0.019.3 forms monomeric molecules with the Me2Si(NPEt3)2 ligand as chelating agent to give a planar ZnN2Si four-membered ring with Zn-N distances of 207.0(2) pm.
5: Space group P42/nmc, Z = 2; lattice dimensions at -70°C: a = b = 1146.9(6), c = 1437.9(7) pm, R = 0.060.
Notizen: Bridging of Trigoldsulfonium Clusters by a Silver(I) Ion
Authors: Sladek Alexander , Schmidbaur Hubert 
Published: February 2015

Abstract
Treatment of tris[(triphenylphosphine)gold(I)]-sulfonium tetrafluoroborate with AgBF4 (molar ratio 2:1) in tetrahydrofuran affords a hepta-nuclear mixed-metal cluster trication {[(Ph3P)6Au6AgS2](thf)}3+ as the tetrafluorobor­ate salt. The crystal structure of the compound has been determined by X-ray diffraction. The sil­ver atom is found in a bridging position between the two Au3S units with short contacts to both sulfur atoms and to three out of six gold atoms. The coordination sphere of the silver atom is complemented by a tetrahydrofuran molecule. In di(tri)chlorom ethane solutions there is rapid site exchange of the silver coordination as shown by virtual equivalence of the phosphine ligands on the NMR time scale at ambient temperature.
Reaktionen von Cadmium-und Quecksilber(II)halogeniden und -pseudohalogeniden mit Kronenethern: Kristallstrukturen der Komplexe von Benzo-18-krone-6 mit CdX2 und HgX2 (X = CI, Br) und von Dibenzo-18-krone-6 mit Hg(CN)2 / Reactions of Cadmium and Mercury(II) Halides and Pseudohalides with Crown Ethers: Crystal Structures of the Complexes of Benzo-18-crown-6 with CdX2 and HgX2 (X = Cl, Br) and of Dibenzo-18-crown-6 with Hg(CN)2
Authors: Pickardt Joachim , Wiese Sven , Wischlinski Pirka 
Published: February 2015

Abstract
The reactions of benzo-18-crown-6 with MeX2 (Me = Cd, Hg; X = Cl. Br), and of dibenzo-18-crown-6 with Hg(CN)2 afford the compounds [Me(benzo-18-crown-6)X2] (1-4) and [Hg(dibenzo-18-crown-6)(CN)2 (5), resp., the crystal structures of which were determined. They consist of isolated neutral molecules, the crystalline Cd complexes and 5 contain one molecule of water of crystallization per formula unit, which however is not coordinated to the metal atom. The metal atoms are coordinated by the six O atoms of the ligands and the two halide atoms, or the two CN groups for 5, resp., the coordination being more unsymmetrical for the benzo than for the dibenzo ligand.