bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Review of the XRD Data of the Phases Present in the CaO-SrO-CuO System
Authors: Reardon Brian J. , Hubbard Camden R. 
Published: January 2013

AbstractX-ray powder patterns for the phases in the CaO-SrO-CuO ternary system, along with the corresponding crystal structures, were obtained from the literature and from the Powder Diffraction File. Available XRD patterns were compared with each other and with a calculated pattern for each phase, yielding a recommended reference pattern. The simulated powder patterns presented here deal with the phases found within the (Ca,Sr)O, (Ca,Sr)2CuO3, (Ca,Sr)14Cu24O41, (Ca,Sr)CuO2, (Ca,Sr)Cu2O3, and (Ca,Sr)Cu2O2 solid solution series and are recommended for the Powder Diffraction File (PDF).
Simultaneous Use of Observed and Calculated Standard Profiles in Quantitative XRD Analysis of Minerals by the Multiphase Rietveld Method: The Determination of Pseudorutile in Mineral Sands Products
Authors: Taylor J.C. , Rui Zhu 
Published: January 2013

AbstractIn conventional multiphase Rietveld refinement, now being used for quantitative phase determination, the crystal structure of each phase needs to be known in order to generate a calculated standard pattern of the phase to be refined against the measured XRD pattern. This is a disadvantage when the structural data for a phase are imperfect or unknown and may prevent an analysis.A method is given whereby a phase with an imperfectly known or unknown crystal structure can be included in a multiphase Rietveld refinement, with other well-characterised phases, by use of an empirical or “observed” hkl file for that phase, with the SIROQUANT software package. The amplitudes 1F(hkl)1 in the empirical hkl file of the phase generate a reference profile for it which agrees with a measured standard pattern of the phase. Methods are given for the creation and scaling of empirical or “observed” phase hkl datasets. The Rietveld variable parameters (preferred orientation, linewidth, lineshape and unit cell) are refinable in the usual way for a phase with an empirical hkl dataset.
Powder Diffraction Data of Three Tetrahydropyridinyl Oxime Cognition Activators of Formula C8H15N2O+Cl−
Authors: Bandoli G. , Nicolini M. , Ongaro A. 
Published: January 2013

AbstractIndexed X-ray powder diffraction data are reported for three tetrahydropyridinyl oxime cognition activators. For these drugs of formula C8H15N2O+Cl− powder diffraction data calculated from single crystal structure determinations are also presented and compared to the experimentally observed powder diffraction data. Comparison of experimental and calculated powder patterns assures that single crystals are good representatives of the commercial powdered samples.
Structure of the M2CuWO6 System, with M = Ba or Sr
Authors: Bokhimi  
Published: January 2013

AbstractThe crystalline structure of the M2CuWO6 phases with M = Ba or Sr was obtained from X-ray powder diffraction at room temperature with CuKα radiation. The phases are isostructural with tetragonal unit cells, space group I4/m and Z = 2. The parameters for the Sr2CuWO6 phase are: Mr = 518.6, a = 5.42693(5) Å, c = 8.4087(1) Å, V = 247.65(1) Å3, Dx = 6.954 Mg/m3, μ = 77.75 mm−1, F(000) = 454, R = 0.0375 for 24 reflections; the parameters for the Ba2CuWO6 phase are: Mr = 618.1, a = 5.56392(8) Å, c = 8.6274(1) Å, V = 267.08(1) Å3, Dx = 7.683 Mg/m3, μ = 157.0 mm−1, F(000) = 526, R = 0.0506 for 27 reflections. Cell parameters were obtained from Rietveld refinement. The crystalline structure is based on the perovskite structure. It is laminar with ordered alternating WO6 deformed octahedra and CuO2 planar squares along the [110] direction, joined by corners and rotated perpendicular to the [001] direction. The samples are electrica insulators.
The development of emotional and behavioral self-regulation and social competence among maltreated school-age children
Authors: Shields Ann M. , Cicchetti Dante , Ryan Richard M. 
Published: January 2013

AbstractBehavioral and emotional self-regulation are important aspects of competence in school-age children. Despite the apparent interrelatedness of behavioral and affective processes, empirical approaches to the development of self-regulation typically have investigated these systems separately. As a result, their relative effects upon social competence remain, for the most part, an open question. This study, working from an organizational and developmental psychopathology perspective, attempted to investigate developmental processes that place maltreated children at risk for impaired peer relationships by assessing the independent and relative influences of behavioral and emotional regulation on social competence in school-age children. Subjects were maltreated children, who are at risk for both attenuated self-regulation and impaired peer relationships, and economically disadvantaged nonmaltreated comparison children. Observations were conducted during a summer day camp, an ecologically valid context in which to study children's social interactions. As predicted, maltreated children were found to be deficient in behavioral and affective regulation, relative to nonmaltreated children.Furthermore, attenuated self-regulation mediated the effects of maltreatment on children's social competence. Results highlighted the unique contributions of both behavior and affect in predicting peer competence, suggesting that a more comprehensive approach to the study of self-regulation is warranted.
The Expression of Alkaline Phosphatase, Osteopontin, Osteocalcin, and Chondroitin Sulfate during Pectoral Fin Regeneration inCarassius auratus gibelio: A Combined Histochemical and Immunohistochemical Study
Authors: Stavri Simona , Zarnescu Otilia 
Published: January 2013

AbstractDermal bone is an important component of the teleost fins, and its ability to regenerate after fin amputation appears to be unlimited. The organic bone matrix contain type I collagen fibers, proteoglycans enriched in chondroitin sulfate, and noncollagenous matrix protein such as osteocalcin, osteopontin, and osteonectin. These molecules are synthesized by fin osteoblasts. Inorganic components chiefly consist of calcium and phosphate that form crystals of hydroxyapatite. Fin rays are described as models to study ossification. Due to this, the identification of the components involved in the synthesis of the organic and inorganic components of lepidotrichial bone are of great interest for the analysis of skeletal disorders in fish ossification. The present study investigates expression of alkaline phosphatase, osteopontin, osteocalcin, and chondroitin sulfate during pectoral fin regeneration inCarassius auratus gibelio. Alkaline phosphatase reaction has been found in the epidermis covering the wound, proximal blastema, near the cells that surround newly-formed lepidotrichia matrix and the tips of regenerating fin rays. Osteopontin has been observed throughout the regeneration blastema but excluded from the scleroblasts lining the inner side of the lepidotrichia. Osteocalcin and chondroitin sulfate expression coincides with the onset of mineralization of lepidotrichial matrix, suggesting its involvement in bone mineralization.
Significant variation in transformation frequency in Streptococcus pneumoniae
Authors: Evans Benjamin A , Rozen Daniel E 
Published: January 2013

Abstract
The naturally transformable bacterium Streptococcus pneumoniae is able to take up extracellular DNA and incorporate it into its genome. Maintaining natural transformation within a species requires that the benefits of transformation outweigh its costs. Although much is known about the distribution of natural transformation among bacterial species, little is known about the degree to which transformation frequencies vary within species. Here we find that there is significant variation in transformation frequency between strains of Streptococcus pneumoniae isolated from asymptomatic carriage, and that this variation is not concordant with isolate genetic relatedness. Polymorphism in the signalling system regulating competence is also not causally related to differences in transformation frequency, although this polymorphism does influence the degree of genetic admixture experienced by bacterial strains. These data suggest that bacteria can evolve new transformation frequencies over short evolutionary timescales. This facility may permit cells to balance the potential costs and benefits of transformation by regulating transformation frequency in response to environmental conditions.
Incorporating Video Modeling Into a School-Based Intervention for Students With Autism Spectrum Disorders
Authors: Wilson Kaitlyn P. 
Published: January 2013

Purpose
Video modeling is an intervention strategy that has been shown to be effective in improving the social and communication skills of students with autism spectrum disorders, or ASDs. The purpose of this tutorial is to outline empirically supported, step-by-step instructions for the use of video modeling by school-based speech-language pathologists (SLPs) serving students with ASDs.

Method
This tutorial draws from the many reviews and meta-analyses of the video modeling literature that have been conducted over the past decade, presenting empirically supported considerations for school-based SLPs who are planning to incorporate video modeling into their service delivery for students with ASD. The 5 overarching procedural phases presented in this tutorial are (a) preparation, (b) recording of the video model, (c) implementation of the video modeling intervention, (d) monitoring of the student’s response to the intervention, and (e) planning of the next steps.

Conclusion
Video modeling is not only a promising intervention strategy for students with ASD, but it is also a practical and efficient tool that is well-suited to the school setting. This tutorial will facilitate school-based SLPs' incorporation of this empirically supported intervention into their existing strategies for intervention for students with ASD.
Predictors and prognostic implications of incident heart failure following the first diagnosis of atrial fibrillation in patients with structurally normal hearts: the Belgrade Atrial Fibrillation Study
Authors: Potpara Tatjana S. , Polovina Marija M. , Licina Marina M. , Marinkovic Jelena M. , Lip Gregory Y. H. 
Published: January 2013

AimAtrial fibrillation (AF) commonly co‐exists with heart failure (HF). The risk factors for and prognostic implications of incident HF development in patients with first‐diagnosed AF and structurally normal hearts are poorly defined. In a cohort of patients with first‐diagnosed AF and structurally normal hearts on baseline echocardiography, we investigated baseline risk factors for the development of incident HF and tested the hypothesis that incident HF was an independent predictor of adverse outcomes during a mean 10‐year follow‐up period.Methods and resultsThis was a registry‐based, observational cohort study of 842 patients initially diagnosed between 1992 and 2007 (mean age 51.6 ± 12.4 years), whereby 83 (9.9%) developed HF. The linearized rate of incident HF was 0.97% [95% confidence interval (CI) 0.78–1.19%] per 100 patient‐years. Baseline history of hypertension, diabetes mellitus, dilated left atrium, and low‐normal LVEF (50–54%) were multivariable predictors of subsequent HF (all P < 0.05). HF development was significantly associated with increased number of hospitalizations, AF progression, any stroke/peripheral thrombo‐embolism, ischaemic stroke, cardiovascular death, and all‐cause mortality (all P < 0.001). Kaplan–Meier 10‐year estimates of survival free of the composite endpoint of AF progression, thrombo‐embolism, and mortality were significantly worse for AF patients with incident HF compared with those without HF (68.8%; 95% CI 64.7–72.9 vs. 25.9% 95% CI 15.7–36.1, P < 0.001).ConclusionUnderlying co‐morbidities or subtle alterations such as mild left atrial dilatation or low‐normal LVEF in the absence of overt underlying heart disease are baseline independent risk factors for incident HF during a long‐term follow‐up. Incident HF was an independent predictor of adverse outcomes in patients initially diagnosed with first‐diagnosed AF and structurally normal hearts. These findings could facilitate the identification of AF patients at increased risk for adverse outcomes within the cohort perceived as being at ‘low risk’ given a structurally normal heart on echocardiography.
Shifts between gelatinous and crustacean plankton in a coastal upwelling region
Authors: Bode Antonio , Álvarez-Ossorio Maria Teresa , Miranda Ana , Ruiz-Villarreal Manuel 
Published: January 2013

AbstractBode, A., Álvarez-Ossorio M. T., Miranda, A., and Ruiz-Villarreal, M. 2013. Shifts between gelatinous and crustacean plankton in a coastal upwelling region. – ICES Journal of Marine Science, 70: 934–942. Variability in the dominance of copepods vs. gelatinous plankton was analysed using monthly time-series covering the last 55 years and related to changes in climatic, oceanographic, and fishery conditions in the upwelling region of Galicia (NW Spain). Seasonality was generally the main component of variability in all groups, both along the coast and in the nearby ocean, but no common long-term trend was found. Coastal copepods increased since the early 1990s, and gelatinous plankton increased in the ocean during the 1980s. Different trends were found for gelatinous plankton in two coastal sites, characterized by increases in either medusae or tunicates. In all series, multiyear periods of relative dominance of gelatinous vs. copepod plankton were evident. In general, copepod periods were observed in positive phases of the main modes of regional climatic variability. Conversely, gelatinous periods occurred during negative climatic phases. However, the low correlations between gelatinous plankton and climatic, oceanographic, or fishery variables suggest that local factors play a major role in their proliferations.
ASR1 Mediates Glucose-Hormone Cross Talk by Affecting Sugar Trafficking in Tobacco Plants
Authors: Dominguez Pia Guadalupe , Frankel Nicolas , Mazuch Jeannine , Balbo Ilse , Iusem Norberto , Fernie Alisdair R. , Carrari Fernando 
Published: January 2013

AbstractAsr (for ABA, stress, ripening) genes are exclusively found in the genomes of higher plants, and the encoded proteins have been found localized both to the nucleus and cytoplasm. However, before the mechanisms underlying the activity of ASR proteins can be determined, the role of these proteins in planta should be deciphered. Results from this study suggest that ASR is positioned within the signaling cascade of interactions among glucose, abscisic acid, and gibberellins. Tobacco (Nicotiana tabacum) transgenic lines with reduced levels of ASR protein showed impaired glucose metabolism and altered abscisic acid and gibberellin levels. These changes were associated with dwarfism, reduced carbon dioxide assimilation, and accelerated leaf senescence as a consequence of a fine regulation exerted by ASR to the glucose metabolism. This regulation resulted in an impact on glucose signaling mediated by Hexokinase1 and Snf1-related kinase, which would subsequently have been responsible for photosynthesis, leaf senescence, and hormone level alterations. It thus can be postulated that ASR is not only involved in the control of hexose uptake in heterotrophic organs, as we have previously reported, but also in the control of carbon fixation by the leaves mediated by a similar mechanism.
An Evolutionarily Conserved Signaling Mechanism Mediates Far-Red Light Responses in Land Plants
Authors: Possart Anja , Hiltbrunner Andreas 
Published: January 2013

Abstract
Phytochromes are plant photoreceptors important for development and adaptation to the environment. Phytochrome A (PHYA) is essential for the far-red (FR) high-irradiance responses (HIRs), which are of particular ecological relevance as they enable plants to establish under shade conditions. PHYA and HIRs have been considered unique to seed plants because the divergence of seed plants and cryptogams (e.g., ferns and mosses) preceded the evolution of PHYA. Seed plant phytochromes translocate into the nucleus and regulate gene expression. By contrast, there has been little evidence of a nuclear localization and function of cryptogam phytochromes. Here, we identified responses to FR light in cryptogams, which are highly reminiscent of PHYA signaling in seed plants. In the moss Physcomitrella patens and the fern Adiantum capillus-veneris, phytochromes accumulate in the nucleus in response to light. Although P. patens phytochromes evolved independently of PHYA, we have found that one clade of P. patens phytochromes exhibits the molecular properties of PHYA. We suggest that HIR-like responses had evolved in the last common ancestor of modern seed plants and cryptogams and that HIR signaling is more ancient than PHYA. Thus, other phytochromes in seed plants may have lost the capacity to mediate HIRs during evolution, rather than that PHYA acquired it.
Network visualisation as a way to the web usage analysis
Authors: Luis Ortega José , Aguillo Isidro F. 
Published: January 2013

PurposeThe aim of this paper is to present network visualisation as a way to analyse and to test the design of a website.Design/methodology/approachA network graph of the access to the webometrics.info site from its web logs was analysed. Several graphs (navigational and query graphs) with different added variables were explored. SNA indicators were used to extract the main findings of these networks.FindingsThe results show the double structure of the two language versions, the central position of the search engines as hubs that distribute the access to every page, how the pages are grouped by their thematic and structural relationships, and which pages are less requested through search engines queries or are less visible.Research limitations/implicationsThe results are based on the web performance of only one website and therefore generalisation has to be cautious.Originality/valueThe application of network visualisation and SNA indicators allows to explore the navigation of a website by users and to test how it is used. The graph representation makes possible an intuitive way to observe the structure of a website, the behaviour of users and information consumption.
An exploratory study on social library system users' information seeking modes
Authors: Jiang Tingting 
Published: January 2013

PurposeSocial library systems are Web 2.0 sites where users discover interesting books, movies, and music, etc., collect these resources to their personal libraries, and share their collections with others. The purpose of this study is to identify the information seeking modes adopted by users in this context as well as to reveal the characteristics of the users who are dominated by each mode.Design/methodology/approachAn online survey was conducted to capture the background and behavior data of regular users from Douban, the most influential Chinese‐language social library system. The “friend‐of‐a‐friend” recruitment technique resulted in a total of 129 responses, 112 of which were valid and analyzed to generate both descriptive and inferential statistics.FindingsSearching, browsing, encountering, and monitoring are the four major information seeking modes adopted by social library system users. The majority of the users tend to combine two or more modes, but each user has a dominating one that helps define him/her as a searcher, browser, encounterer, or monitor. While searching is the most widely adopted mode, browsers are the most prevalent type of information seekers. Different information seekers do not demonstrate significantly different characteristics by and large, however with some exceptions.Originality/valueThis study is one of the first to investigate how users look for resources in social library systems, a problem neglected by previous studies mostly focusing on how users organize and tag resources. The research findings enrich our understanding of social library systems as diverse and dynamic information seeking environments. This in turn will provide useful implications for their interface design to more effectively address the needs and expectations of special types of information seekers.
Acquisitions in knowledge‐intensive industries
Authors: Riviezzo Angelo 
Published: January 2013

PurposeThe purpose of this paper is to investigate the role of specific variables, that are strategic orientations, organizational model and prior acquisitions experience, in the management of acquisitions that are not motivated exclusively by financial objectives.Design/methodology/approachMultiple cases have been developed, selecting frequent acquirers and analysing the dynamics of acquisitions implementation. Within‐case analysis was aimed at describing the acquisition and integration processes experienced by the selected firms, identifying the role of the researched variables in each phase and their impact on the acquisition outcomes. Thereafter, cross‐case analysis was used to look for the presence of similarities across multiple cases. The organizational characteristics under investigation are proposed as hallmarks of the effective acquirer in knowledge‐intensive industries.FindingsCharacteristics such as the market orientation, the entrepreneurial orientation, the organizational model, the experience in acquisitions management and the investments in knowledge codification emerged from the cases as critical in managing acquisitions that are mainly motivated by the need of the acquirer to have access to knowledge‐based resources of the target.Research limitations/implicationsThe paper gives a contribution to the debate going on in literature about the role of new variables in explaining the acquisitions success or failure and the non‐financial motives for acquisitions. It tries to bring the expertise showed by certain firms in managing acquisitions in knowledge‐based industries to specific and, until now, under‐researched features that characterize them. The main limitation of the study is the generalizability of the developed framework, due to the bounded number and the nature of case studies. All the examined firms operate in the field of IT services and all the considered acquisitions are horizontal.Originality/valueEven if literature has long emphasized the need to prioritize the multiple aspects of the acquisition process and discussed the role of multiple variables in explaining the variance in acquisitions outcomes, empirical research has not completely identified the antecedents of the acquisitions performance and has traditionally overlooked the non‐financial motives for acquisitions. This study focuses on high‐tech industries, where acquisitions are motivated mainly by motives other than financial, and investigates the role of specific and under‐researched characteristics of the acquirer firms.