bluuebunny/crossref_metadata_2025_split huggingface dataset:
A framework for clustering massive graph streams
Authors: Aggarwal Charu C. , Zhao Yuchen , Yu Philip S. 
Published: September 2010

AbstractIn this paper, we examine the problem of clustering massive graph streams. Graph clustering poses significant challenges because of the complex structures which may be present in the underlying data. The massive size of the underlying graph makes explicit structural enumeration very difficult. Consequently, most techniques for clustering multidimensional data are difficult to generalize to the case of massive graphs. Recently, methods have been proposed for clustering graph data, though these methods are designed for static data, and are not applicable to the case of graph streams. Furthermore, these techniques are especially not effective for the case of massive graphs, since a huge number of distinct edges may need to be tracked simultaneously. This results in storage and computational challenges during the clustering process. In order to deal with the natural problems arising from the use of massive disk‐resident graphs, we propose a technique for creating hash‐compressed microclusters from graph streams. The compressed microclusters are designed by using a hash‐based compression of the edges onto a smaller domain space. We provide theoretical results which show that the hash‐based compression continues to maintain bounded accuracy in terms of distance computations. Since clustering is a data summarization technique, it can also be naturally extended to the problem of evolution analysis. We provide experimental results which illustrate the accuracy and efficiency of the underlying method. Copyright © 2010 Wiley Periodicals, Inc. Statistical Analysis and Data Mining 3: 399‐416, 2010
The analysis of very small samples of repeated measurements II: A modified Box correction
Authors: Skene Simon S. , Kenward Michael G. 
Published: September 2010

AbstractThere is a need for appropriate methods for the analysis of very small samples of continuous repeated measurements. A key feature of such analyses is the role played by the covariance matrix of the repeated observations. When subjects are few it can be difficult to assess the fit of parsimonious structures for this matrix, while the use of an unstructured form may lead to a serious lack of power. The Kenward–Roger adjustment is now widely adopted as a means of providing an appropriate inferences in small samples, but does not perform adequately in very small samples. Adjusted tests based on the empirical sandwich estimator can be constructed that have good nominal properties, but are seriously underpowered. Further, when such data are incomplete, or unbalanced, or non‐saturated mean models are used, exact distributional results do not exist that justify analyses with any sample size. In this paper, a modification of Box's correction applied to a linear model‐based F‐statistic is developed for such small sample settings and is shown to have both the required nominal properties and acceptable power across a range of settings for repeated measurements. Copyright © 2010 John Wiley & Sons, Ltd.
Perioperative Management of Antithrombotic Agents in Urological Surgery
Authors: Davis N.F. , McGuire B.B. , Flood H.D. 
Published: September 2010

Introduction: There are no published urological guidelines for the management of antithrombotic agents during the perioperative period. Aims: To demonstrate variations in urological perioperative protocols for the antithrombotic agents aspirin, clopidogrel and warfarin. Materials and methods: Consultant urologists from the BAUS registry completed an online questionnaire on perioperative management of antithrombotic agents in urological surgery. Urologists were requested to indicate whether they routinely discontinued aspirin, clopidogrel or warfarin during the perioperative period for 11 different urological procedures. Respondents that discontinued an antithrombotic agent were requested to indicate the number of days the agent was discontinued preoperatively and recommenced postoperatively. Results: Of the 400 urologists surveyed, 210 (52.5%) responded. The percentage of respondents that continued each antithrombotic agent varied widely in each of the 11 procedures assessed (aspirin: range 48–82%; clopidogrel: 1–50%; warfarin: 2–40%). Respondents were most likely to continue an antithrombotic agent prior to diagnostic ureteroscopy (aspirin 82%, clopidogrel 50%, warfarin 40%) and least likely to continue prior to TURP (aspirin 45%, clopidogrel 2%, warfarin 2%). Conclusions: This is the first study addressing urological procedure-specific perioperative management policies for aspirin, clopidogrel and warfarin. Our findings suggest that perioperative management policies for antithrombotic agents are highly variable and appear arbitrary. Standardised guidelines need to be developed to reduce variations in current urological surgical practice.
The Dieter's Paradox
Authors: Chernev Alexander 
Published: September 2010

AbstractDespite the vast public policy efforts to promote the consumption of healthy foods and the public's growing concern with weight management, the proportion of overweight individuals continues to increase. An important factor contributing to this obesity trend is the misguided belief about the relationship between a meal's healthiness and its impact on weight gain, whereby people erroneously believe that eating healthy foods in addition to unhealthy ones can decrease a meal's calorie count. This research documents this misperception, showing that it is stronger among individuals most concerned with managing their weight—a striking result given that these individuals are more motivated to monitor their calorie intake. This finding has important public policy implications, suggesting that in addition to encouraging the adoption of a healthier lifestyle among overweight individuals, promoting the consumption of healthy foods might end up facilitating calorie overconsumption, leading to weight gain rather than weight loss.
Information in short selling: Comparing Nasdaq and the NYSE
Authors: Blau Benjamin M. , Van Ness Bonnie F. , Van Ness Robert A. 
Published: September 2010

AbstractThis study directly compares the level and return predictability of short selling for NYSE stocks to a matched sample of Nasdaq stocks. When considering trading that executes on all exchanges, we document that the Nasdaq has greater levels of short selling, relative to total trading activity, than the NYSE. However, Nasdaq has less relative short activity than the NYSE when considering short selling that executes on the primary exchange. When comparing the contrarian trading behavior and the return predictability of short sellers, we show that Nasdaq short sellers are more contrarian in contemporaneous and past returns and better at predicting negative returns than NYSE short sellers. These results are robust in each trade‐size category.
The stages and duration of formation of gold mineralization at copper-skarn deposits (Altai–Sayan folded area)
Authors: Gaskov I.V. , Borisenko A.S. , Babich V.V. , Naumov E.A. 
Published: September 2010

Abstract
Gold mineralization at copper-skarn deposits (Tardanskoe, Murzinskoe, Sinyukhinskoe, Choiskoe) in the Altai–Sayan folded area is related to different hydrothermal-metasomatic formations. It was produced at 400–150 ºC in several stages spanning 5–6 Myr, which determined the diversity of its mineral assemblages. Gold mineralization associated with magnetite bodies is spatially correlated with magnesian and calcareous skarns, whereas gold mineralization in crushing zones and along fault sutures in moderate- and low-temperature hydrothermal-metasomatic rocks (propylites, beresites, serpentinites, and argillizites) is of postskarn formation. Different stages were manifested with different intensities at gold deposits. For example, the Sinyukhinskoe deposit abounds in early high-temperature mineral assemblages; the Choiskoe deposit, in low-temperature ones; and the Tardanskoe and Murzinskoe deposits are rich in both early and late gold minerals. Formation of commercial gold mineralization at different copper-skarn deposits is due to the combination of gold mineralization produced at different stages as a result of formation of intricate igneous complexes (Tannu-Ola, Ust’-Belaya, and Yugala) composed of differentiated rocks from gabbros to granites.
Ethnic isolation and psychosis: re-examining the ethnic density effect
Authors: Schofield P. , Ashworth M. , Jones R. 
Published: September 2010

BackgroundElevated incidence of psychotic illness has been consistently shown among migrant populations. Ethnic density, the proportion of an ethnic group in a defined area, is cited as one factor with a reduced risk of psychosis where ethnicity is shared. However, UK studies have shown mixed results. We set out to re-examine the ethnic density effect at a greater level of geographic detail than previous studies.MethodUsing a large sample of patient records from general practitioners in South East London, we were able to assess neighbourhood factors at the detailed lower super output area level. This comprises, on average, 1500 people compared with around 6000 per ward, the measure used in previous studies. We compared black (Afro-Caribbean) and white psychosis incidence by neighbourhood ethnic density over a 10-year period.ResultsWe found a clear negative association between ethnic density and psychosis incidence. In neighbourhoods where black people comprised more than 25% of the population, there was no longer a statistically significant ethnic difference in psychosis rates. However, where black people were less well represented, their relative risk increased nearly threefold [odds ratio (OR) 2.88, 95% confidence interval (CI) 1.89–4.39]. Furthermore, incidence rates for black people in the lowest density quintiles were over five times greater than in the most dense quintile (OR 5.24, 95% CI 1.95–14.07). However, at ward level this association was much weaker and no longer statistically significant.ConclusionsEthnic density is inversely related to psychosis incidence at a detailed local neighbourhood level.
Optical genetic mapping defines regions of chromosomal variation in serovars of S. enterica subsp. enterica of concern for human and animal health
Authors: SAUNDERS M. P. , WU G. , ABUOUN M. , PAN Z. , ANJUM M. , WOODWARD M. J. 
Published: September 2010

SUMMARYInfections involving Salmonella enterica subsp. enterica serovars have serious animal and human health implications; causing gastroenteritis in humans and clinical symptoms, such as diarrhoea and abortion, in livestock. In this study an optical genetic mapping technique was used to screen 20 field isolate strains from four serovars implicated in disease outbreaks. The technique was able to distinguish between the serovars and the available sequenced strains and group them in agreement with similar data from microarrays and PFGE. The optical maps revealed variation in genome maps associated with antimicrobial resistance and prophage content in S. Typhimurium, and separated the S. Newport strains into two clear geographical lineages defined by the presence of prophage sequences. The technique was also able to detect novel insertions that may have had effects on the central metabolism of some strains. Overall optical mapping allowed a greater level of differentiation of genomic content and spatial information than more traditional typing methods.
GOD OF METALS: TLATLAUHQUI TEZCATLIPOCA AND THE SACRED SYMBOLISM OF METALLURGY IN MICHOACAN, WEST MEXICO
Authors: Roskamp Hans 
Published: September 2010

AbstractIn recent years the development of metallurgy in West Mexico has received increasing attention in the field of archaeological and technology studies. Considering that the latter already include excellent descriptions and analysis of the ritual and sumptuary functions of metal artifacts, the present article focuses on the sacred symbolism of the metal resources and the metalworking process itself according to several indigenous cosmogonical narratives and other additional pictorial and alphabetical sources from sixteenth-century Michoacan and adjacent cultural areas. The available documentation clearly shows that a crucial role was attributed to the native god Tlatlauhqui Tezcatlipoca.
OBSIDIAN PRODUCTION AND CHANGING CONSUMPTION IN THE LAKE PATZCUARO BASIN, MICHOACAN, MEXICO
Authors: Rebnegger Karin J. 
Published: September 2010

AbstractMany Tarascan settlements surrounded Lake Patzcuaro in Michoacan, Mexico, during the Late Postclassic period. A hierarchy of settlements existed from the capital of Tzintzuntzan to secondary administration sites and small tributary communities. Obsidian artifacts from the large site, Erongaricuaro, have been studied by the author. Analysis of the obsidian from this site highlighted particular patterns in the production and consumption of prismatic blades and large scrapers. Data from another site, Urichu, was collected and analyzed more recently. Urichu was a tributary center to Erongaricuaro during the Tarascan empire. Local and state elites inhabited both sites, and analysis of obsidian manufacture indicates that the sites may have had different functions. Obsidian from the sites also varies by source location. This too may indicate site function and the changing sociopolitical organization of obsidian production and use throughout the Tarascan empire.
Interwar France and the Rural Exodus: The National Myth in Peril
Authors: LYNCH EDOUARD 
Published: September 2010

AbstractInterwar France saw itself as a rural nation. The First World War, won in the muddy earth of the trenches, elevated the image of the ‘peasant soldier’ to a symbolic height. But paradoxically, it was during this period that the urban population overtook the rural. Against this backdrop, references to the noxious consequences of rural migration increased in frequency and virulence. The condemnation of rural migration was part of the celebration of a French national identity rooted in the past, the earth and other key agrarian values, such as thrift, hard work and property ownership. French peasants are perceived to be the last bearers of this value set. In other European countries too, the same ideological debate was at play. In Italy and Germany, in particular, the regimes were faced with a similar dilemma, championing a racially pure, rural, identity rooted in the past, whilst embracing a modernising revolution. Their parallel attempts at aligning these two ideas are richly suggestive.
Motoring and the British Countryside
Authors: JEREMIAH DAVID 
Published: September 2010

AbstractThe representation of the car in the countryside was central to selling the benefits of motoring and owning a car in the interwar period. Motor traffic was a key part of the debate and legislation on the countryside, in the context of land for building and food production, and scenery for pleasure and reassurance of what it meant to be English. This essay focuses on the impact of the motor car as it generated a new economy for rural Britain with new services, buildings and roads that changed the landscape and made the countryside more accessible. It shows how the motoring press and advertising campaigns exploited an imagined ‘Beautiful Britain’ and brought about a modernisation that set in place aspects of the use, values and culture of the British countryside that have remained to the present.
Interwar Hungarian Entertainment Films and the Reinvention of Rural Modernity
Authors: MANCHIN ANNA 
Published: September 2010

AbstractIn interwar debates about Hungarian modernity, the countryside played a prominent symbolic role. For conservative nationalists, the Hungarian countryside became a symbol and source of authentic, ‘traditional’ Hungarian national culture, unchanging, hierarchical, ordered society and stable community, and national uniqueness. Entertainment films of the 1930s provided alternative representations of the countryside that upheld the possibility of modernising traditional Hungary. According to the films, modern Hungary would be created at the intersection and out of the cooperation between rural and urban, modern and traditional. The films questioned and challenged the idea that the rural was ‘pure’, authentic, untainted, but they also rejected the idea that it was shameful, hopelessly backward, or unable to change. Showing the countryside as both traditional and part of modern mass culture, as both nostalgically stable and an exotic vacationland, the films offered an integrative vision of Hungary which destabilised assumptions of both liberals and conservatives. Popular films used the countryside to provide a unique and alternative vision of modern Hungary that was integrative and reconciliatory; they provided an outlet for a liberal, democratic, capitalist perspective unavailable elsewhere in the public sphere.
Elterliche Psychopathologie, Aggression und Depression bei Kindern und Jugendlichen
Authors: Schlack Robert , Hölling Heike , Erhart Michael , Petermann Franz , Ravens-Sieberer Ulrike 
Published: September 2010

Aggressiv-dissoziales Verhalten und depressive Symptome treten bei Kindern und Jugendlichen auch gemeinsam auf. Eine solche Komorbidität zweier unterschiedlicher Störungsbilder kann oft durch einen gemeinsamen Risikofaktor erklärt werden. Aus der bevölkerungsbezogenen BELLA-Studie wurde aus insgesamt 1356 Teilnehmern im Altern von elf bis 17 Jahren (51.6 % Jungen) eine Risikogruppe aggressiver Kinder und Jugendlicher (n = 422; 68.7 % Jungen) identifiziert und untersucht, ob und inwieweit die Beziehungen zwischen elterlicher Psychopathologie und einer der beiden Störungen von der jeweils anderen Störung vermittelt werden. Hierzu wurden alters- und geschlechtsadjustierte Mediatoranalysen durchgeführt. Die Analysen wurden stratifiziert, je nachdem ob sich die Kinder und Jugendlichen als vorwiegend proaktiv (n = 145; 52.4 % Jungen), reaktiv (n = 173; 76.3 % Jungen) oder reaktiv-proaktiv (n = 104; 78.8 % Jungen) aggressiv einstuften. Für alle Risikogruppen mediierte sowohl aggressiv-dissoziales Verhalten den Pfad auf Depression als auch Depression den Pfad auf aggressiv-dissziales Verhalten. Die Varianzaufklärung der Modelle war für proaktiv- und reaktiv-aggressive Jugendliche deutlich höher, wenn Depression den Pfad von elterlicher Psychopathologie auf aggressiv-dissoziales Verhalten mediierte. Für reaktiv-proaktiv aggressive Kinder und Jugendliche war dieses Verhältnis umgekehrt. Die Ergebnisse werden vor dem Hintergrund aktueller Ergebnisse und Komorbiditätskonzepte diskutiert.
The experience of time in analysis
Authors: Maffei Giuseppe 
Published: September 2010

The experience of time during analysis has very peculiar characteristics. This article describes how in the analytical experience the analyst and his patient may create an intermediate time that relates internal time with the time of the world. The experience of temporality as created by the successful encounter between the time of the world, the subject's history, and the time of the other, together with the inner rhythm of desire, is the result of a permanent effort of working through in which the analyst can neglect neither the personal needs of each of his patients nor those imposed by the outside world.At the end of a successful creation of a temporal experience, the experience of desire is important. The object of desire is not the object of possession. In fantasy, possession is atemporal. On the contrary, the experience of desire is deeply temporal. The existence of desires forms an illusion of the possibility of possession, but a total possession would destroy desire. We love whom we desire, and desire whom we love, and we love more when love keeps its autonomy and leaves us a space to love more.
Combining peer review and metrics to assess journals for inclusion in Scopus
Authors: KÄHLER Ove 
Published: September 2010

ABSTRACTPeer review has been in place for centuries as an accepted process to validate manuscripts submitted for publication in scientific journals. Yet a similarly rigorous assessment of content also happens a level up, when looking at the quality of journals that apply for indexing in bibliographic databases. Scopus, an abstract & citation database provided by Elsevier, indexing 18,000 scientific titles, is receiving an increasing number of title suggestions; in 2009 this grew to almost 5,000 in that year alone. Some of the suggested journals are dedicated to niche areas and/or are published in other languages than English. To ensure a fair and transparent evaluation of these titles and to address the rising interest in being indexed, Scopus redesigned its entire title evaluation process – basing it on a metrical scorecard and on the principles of peer review. By developing an online editorial system – the Scopus Title Evaluation Platform (STEP) – Scopus also created the prerequisite of an improved communication with publishers and editors about their journals.
Prediction of atrial fibrillation in patients with an implantable cardioverter‐defibrillator and heart failure
Authors: Bertini Matteo , Borleffs C. Jan Willem , Delgado Victoria , Ng Arnold C.T. , Piers Sebastiaan R.D. , Shanks Miriam , Antoni M. Louisa , Biffi Mauro , Boriani Giuseppe , Schalij Martin J. , Bax Jeroen J. , Van de Veire Nico R.L. 
Published: September 2010

AimsHeart failure and atrial fibrillation (AF) frequently coexist and AF worsens heart failure prognosis. Device‐based diagnostics derived from implantable cardioverter‐defibrillator (ICD) interrogation provide an accurate method for detecting AF episodes. This study sought to determine clinical and echocardiographic predictors of AF occurrence, including an index of total atrial conduction time derived by tissue Doppler imaging (PA‐TDI duration), in patients with heart failure. Moreover, the role of PA‐TDI duration on the prediction of AF occurrence in subgroups of patients with and without history of AF was explored.Methods and resultsA cohort of 495 heart failure patients who underwent ICD implantation was studied. Baseline echocardiographic parameters of systolic and diastolic function were evaluated together with clinical parameters. Furthermore, PA‐TDI duration was measured. All patients were prospectively followed up after ICD implantation for AF occurrence detected by ICD interrogation. A total of 142 (29%) patients experienced AF over a follow‐up period of 16.4 ± 11.2 months. PA‐TDI duration was longer in patients with AF occurrence when compared with patients without AF occurrence (154 ± 27 vs. 135 ± 24 ms, P < 0.001). On Cox‐multivariable analysis, female gender [hazard ratio = 1.60; 95% confidence intervals (CI) = 1.09–2.35; P = 0.017], history of AF (hazard ratio = 2.22; 95% CI, 1.51–3.27; P < 0.001), and PA‐TDI duration (hazard ratio = 1.27; 95% CI, 1.13–1.42; P < 0.001) were independent predictors of AF occurrence. In the subgroups of patients with and without history of AF, PA‐TDI duration remained an independent predictor of AF occurrence.ConclusionPA‐TDI duration may be useful to risk‐stratify for AF occurrence in heart failure patients with and without a history of AF.