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New Database (new + database)
Selected AbstractsTHE PROPERTIES AND IDENTIFICATION OF MARBLE FROM PROCONNESOS (MARMARA ISLAND, TURKEY): A NEW DATABASE INCLUDING ISOTOPIC, EPR AND PETROGRAPHIC DATA*ARCHAEOMETRY, Issue 5 2008D. ATTANASIO This paper reports an updated and enlarged archaeometric database of Proconnesos marbles with the aim of attaining more reliable inter- and intra-site identification. Quarry and artefact samples (n = 397) from 23 different quarrying areas were characterized using petrographic, isotopic and EPR results. The most distinct property of Proconnesos marbles is their extremely weak EPR intensity, associated with the low concentration of Mn2+impurities. This feature, supported by the contribution of other important isotopic and petrographic variables, forms the basis for the correct identification of Proconnesos marbles. Within the site the distribution of properties is relatively homogeneous; only limited intra-site discrimination is possible. All the experimental results, as well as the quarry samples are made available to other researchers willing to measure additional experimental properties, thus increasing the rate of within the site discrimination. Extensive survey has proved that, although about 10% of the samples exhibit maximum grain size below 1.0 mm, no locations exist where fine grained marbles could be intentionally quarried. The historical aspects of Proconnesos marble quarrying and usage are also discussed. [source] The Uneven Performance of Third Wave Democracies: Electoral Politics and the Imperfect Rule of Law in Latin AmericaLATIN AMERICAN POLITICS AND SOCIETY, Issue 3 2002Joe Foweraker ABSTRACT This article investigates the performance of the new democracies of the third wave by developing a conceptual model of the core elements of liberal democratic government and by constructing a new Database of Liberal Democratic Performance. The performance is shown to be uneven in two main ways. First, the institutional attributes of democratic government advance while individual and minority rights languish. Second, particular institutional attributes coexist uncomfortably, as do particular rights. A comparison of Brazil, Colombia, and Guatemala complements the big picture drawn from the database and focuses on the specific contextual conditions that can create the general political contours of the wave. The uneven democratic performance of these cases is mainly explained by the combination of persistent oligarchic power and a largely unaccountable military. Yet uneven performance, and the imperfect rule of law in particular, does not necessarily prevent democratic survival. [source] Database of queryable gene expression patterns for XenopusDEVELOPMENTAL DYNAMICS, Issue 6 2009Michael J. Gilchrist Abstract The precise localization of gene expression within the developing embryo, and how it changes over time, is one of the most important sources of information for elucidating gene function. As a searchable resource, this information has up until now been largely inaccessible to the Xenopus community. Here, we present a new database of Xenopus gene expression patterns, queryable by specific location or region in the embryo. Pattern matching can be driven either from an existing in situ image, or from a user-defined pattern based on development stage schematic diagrams. The data are derived from the work of a group of 21 Xenopus researchers over a period of 4 days. We used a novel, rapid manual annotation tool, XenMARK, which exploits the ability of the human brain to make the necessary distortions in transferring data from the in situ images to the standard schematic geometry. Developmental Dynamics 238:1379,1388, 2009. © 2009 Wiley-Liss, Inc. [source] Specialization across varieties and North,South competitionECONOMIC POLICY, Issue 53 2008Lionel Fontagné SUMMARY North,South competition quality Analyzing a new database that makes it possible to disaggregate trade flows across many countries according to unit values, we show that international specialization in terms of quality within industries and product categories plays an important role in the dynamics of North,South competition. The different specialization of countries at different levels of development within products and across varieties is mirrored in the recent shifts in world market shares, which are very different across quality segments: the South is not gaining market share in high-value portions of trade pattern. In this respect Europe's specialization pattern appears to be different from that of the US and Japan, and may allow it to better resist the competitive pressure of the South. , Lionel Fontagné, Guillaume Gaulier and Soledad Zignago [source] Financial dollarization: evaluating the consequencesECONOMIC POLICY, Issue 45 2006Eduardo Levy Yeyati SUMMARY Financial dollarization The presence in residents' portfolio of foreign-currency assets and liabilities (or ,financial dollarization') has been alleged to influence monetary policy in developing economies and, especially, to cause debtors' insolvency in the aftermath exchange rate depreciations (the ,balance sheet effect'). The abundant and influential literature on these implications, however, contrasts sharply with the scarcity of empirical work aimed at confirming or refuting them. Using a new database, this paper assesses the evidence on the determinants of financial dollarization and tests whether its empirical effects on monetary and financial stability and on economic performance are consistent with theoretical predictions. It finds that financially dollarized economies display a more unstable demand for money, a greater propensity to suffer banking crises after a depreciation of the local currency, and slower and more volatile output growth, without significant gains in terms of domestic financial depth. The results indicate that active de-dollarization policies may be advisable for the many economies, including Central and Eastern European ones, where foreign-currency denominated assets and liabilities are important in residents' financial portfolios. , Eduardo Levy Yeyati [source] EPPO database on diagnostic expertise: http://dc.eppo.orgEPPO BULLETIN, Issue 1 2010A. S. Roy In 2004, the EPPO Council expressed profound concerns about the decreasing expertise in plant protection and declared a state of emergency for Plant Health (,Madeira declaration'). As diagnostics is one of the scientific fields which are vital for sustaining sound plant health policies, a questionnaire was launched and all EPPO member countries were asked to provide information about their diagnostic expertise, focusing on regulated pests or pests which may present a risk to the EPPO region. In 2006, results of the questionnaire were analysed and compiled by the EPPO Secretariat into a new database. This database now contains detailed information (contact addresses, quality programmes, and accreditations) for 80 diagnostic laboratories from 28 EPPO member countries. More than 500 experts are now registered with details about their diagnostic expertise (pests diagnosed and methods used). The EPPO database on diagnostic expertise can be freely accessed on the Internet: http://dc.eppo.org. [source] HISTALP,historical instrumental climatological surface time series of the Greater Alpine RegionINTERNATIONAL JOURNAL OF CLIMATOLOGY, Issue 1 2007Ingeborg Auer This paper describes the HISTALP database, consisting of monthly homogenised records of temperature, pressure, precipitation, sunshine and cloudiness for the ,Greater Alpine Region' (GAR, 4,19°E, 43,49°N, 0,3500m asl). The longest temperature and air pressure series extend back to 1760, precipitation to 1800, cloudiness to the 1840s and sunshine to the 1880s. A systematic QC procedure has been applied to the series and a high number of inhomogeneities (more than 2500) and outliers (more than 5000) have been detected and removed. The 557 HISTALP series are kept in different data modes: original and homogenised, gap-filled and outlier corrected station mode series, grid-1 series (anomaly fields at 1° × 1°, lat × long) and Coarse Resolution Subregional (CRS) mean series according to an EOF-based regionalisation. The leading climate variability features within the GAR are discussed through selected examples and a concluding linear trend analysis for 100, 50 and 25-year subperiods for the four horizontal and two altitudinal CRSs. Among the key findings of the trend analysis is the parallel centennial decrease/increase of both temperature and air pressure in the 19th/20th century. The 20th century increase (+1.2 °C/+ 1.1 hPa for annual GAR-means) evolved stepwise with a first peak near 1950 and the second increase (1.3 °C/0.6hPa per 25 years) starting in the 1970s. Centennial and decadal scale temperature trends were identical for all subregions. Air pressure, sunshine and cloudiness show significant differences between low versus high elevations. A long-term increase of the high-elevation series relative to the low-elevation series is given for sunshine and air pressure. Of special interest is the exceptional high correlation near 0.9 between the series on mean temperature and air pressure difference (high-minus low-elevation). This, further developed via some atmospheric statics and thermodynamics, allows the creation of ,barometric temperature series' without use of the measures of temperature. They support the measured temperature trends in the region. Precipitation shows the most significant regional and seasonal differences with, e.g., remarkable opposite 20th century evolution for NW (9% increase) versus SE (9% decrease). Other long- and short-term features are discussed and indicate the promising potential of the new database for further analyses and applications. Copyright © 2006 Royal Meteorological Society. [source] Diversity patterns amongst herbivorous dinosaurs and plants during the Cretaceous: implications for hypotheses of dinosaur/angiosperm co-evolutionJOURNAL OF EVOLUTIONARY BIOLOGY, Issue 3 2009R. J. BUTLER Abstract Palaeobiologists frequently attempt to identify examples of co-evolutionary interactions over extended geological timescales. These hypotheses are often intuitively appealing, as co-evolution is so prevalent in extant ecosystems, and are easy to formulate; however, they are much more difficult to test than their modern analogues. Among the more intriguing deep time co-evolutionary scenarios are those that relate changes in Cretaceous dinosaur faunas to the primary radiation of flowering plants. Demonstration of temporal congruence between the diversifications of co-evolving groups is necessary to establish whether co-evolution could have occurred in such cases, but is insufficient to prove whether it actually did take place. Diversity patterns do, however, provide a means for falsifying such hypotheses. We have compiled a new database of Cretaceous dinosaur and plant distributions from information in the primary literature. This is used as the basis for plotting taxonomic diversity and occurrence curves for herbivorous dinosaurs (Sauropodomorpha, Stegosauria, Ankylosauria, Ornithopoda, Ceratopsia, Pachycephalosauria and herbivorous theropods) and major groups of plants (angiosperms, Bennettitales, cycads, cycadophytes, conifers, Filicales and Ginkgoales) that co-occur in dinosaur-bearing formations. Pairwise statistical comparisons were made between various floral and faunal groups to test for any significant similarities in the shapes of their diversity curves through time. We show that, with one possible exception, diversity patterns for major groups of herbivorous dinosaurs are not positively correlated with angiosperm diversity. In other words, at the level of major clades, there is no support for any diffuse co-evolutionary relationship between herbivorous dinosaurs and flowering plants. The diversification of Late Cretaceous pachycephalosaurs (excluding the problematic taxon Stenopelix) shows a positive correlation, but this might be spuriously related to poor sampling in the Turonian,Santonian interval. Stegosauria shows a significant negative correlation with flowering plants and a significant positive correlation with the nonflowering cycadophytes (cycads, Bennettitales). This interesting pattern is worthy of further investigation, and it reflects the decline of both stegosaurs and cycadophytes during the Early Cretaceous. [source] New approach for rapid detection of known hemoglobin variants using LC-MS/MS combined with a peptide database,JOURNAL OF MASS SPECTROMETRY (INCORP BIOLOGICAL MASS SPECTROMETRY), Issue 3 2007F. Basilico Abstract The identification of hemoglobin (Hb) variants is usually performed by means of different analytical steps and methodologies. Phenotypic methods, such as gel electrophoresis and high performance liquid chromatography, are used to detect the different electrophoretic or chromatographic behaviors of hemoglobin variants in comparison to HbA0 used as a control. These data often need to be combined with mass spectrometry analyses of intact globins and their tryptic peptide mixtures. As an alternative to a ,step-by-step' procedure, we have developed a ,single step' approach for the identification of Hb variants present in biological samples. This is based on the µHPLC-ESI-MS/MS analysis of the peptide mixture generated by a tryptic digestion of diluted Hb samples and an in-house new database containing solely the variant tryptic peptide of known human Hb variants. The experimental results (full MS and MS/MS spectra) are correlated with theoretical mass spectra generated from our in-house-built variant peptide database (Hbp) using the SEQUEST algorithm. Simple preparation of samples and an automated identification of the variant peptide are the main characteristics of this approach, making it an attractive method for the detection of Hb variants at the routine clinical level. We have analyzed 16 different samples, each containing a different known variant of hemoglobin. Copyright © 2006 John Wiley & Sons, Ltd. [source] How to Analyze Political Attention with Minimal Assumptions and CostsAMERICAN JOURNAL OF POLITICAL SCIENCE, Issue 1 2010Kevin M. Quinn Previous methods of analyzing the substance of political attention have had to make several restrictive assumptions or been prohibitively costly when applied to large-scale political texts. Here, we describe a topic model for legislative speech, a statistical learning model that uses word choices to infer topical categories covered in a set of speeches and to identify the topic of specific speeches. Our method estimates, rather than assumes, the substance of topics, the keywords that identify topics, and the hierarchical nesting of topics. We use the topic model to examine the agenda in the U.S. Senate from 1997 to 2004. Using a new database of over 118,000 speeches (70,000,000 words) from the Congressional Record, our model reveals speech topic categories that are both distinctive and meaningfully interrelated and a richer view of democratic agenda dynamics than had previously been possible. [source] The Empirics of International Currencies: Network Externalities, History and Persistence,THE ECONOMIC JOURNAL, Issue 537 2009Marc Flandreau Using a new database for the late nineteenth century, when the pound sterling was the world's leading international currency, this article provides evidence on the empirical determinants of international currency status. We report evidence in favour of the search-theoretic models to international currencies. Using a microeconomic model of currency choice, we provide empirical support to strategic externalities. We find strong confirmation of the existence of persistence, but reject the view that the international monetary system was subject to pure path dependency and lock-in effects, suggesting that, even in the absence of WWI, the USD was bound to overtake sterling. [source] Perspective: Economic Conditions, Entrepreneurship, First-Product Development, and New Venture Success,THE JOURNAL OF PRODUCT INNOVATION MANAGEMENT, Issue 1 2010Lisa Z. Song Entrepreneurial ventures have a significant impact on new job creation and economic growth, but existing evidence indicates that most entrepreneurial ventures fail. This paper reports key insights from VENSURV, a new database that tracks the success and failure of ventures founded since 1998. Based on an analysis of 539 new ventures founded during the years 1991,2001, the following conclusions are reached. First, consistent with prior research, less than half of the 539 ventures survived more than two years. Second, economic downturns lead to higher failure rates for new ventures. Third, new venture success is highly correlated with first-product success. Fourth, first-product success is enhanced when those products are introduced into markets with emerging market needs but with established industry standards. Finally, first-product and venture performance are significantly higher for products based on ideas that came from the founders. In addition, the most successful first products are based on ideas that reflect both technology development and an analysis of customer needs. [source] Phytochemical intake and relationship to past health history in Japanese womenBIOFACTORS, Issue 1-4 2004Melissa K. Melby Abstract We calculated functional food factor (FFF) intakes using a new database and examined their relationship to health conditions commonly affecting Japanese women in midlife. One-day DRs were collected weekly for 6 months from 67 Japanese women, aged 45,55 yr, living in Kyoto prefecture, Japan. Macro- and micronutrient and FFF intake were calculated from the resulting 1528 DRs. Factor analysis and logistic regression were performed to identify relationships between FFFs and past health history. Fourteen of 17 FFF factors, as well as age, BMI and menopausal status, exhibited both positive and negative correlations with past history of hypertension, diabetes, allergy, migraine, and menopausal syndrome. [source] Testing co-evolutionary hypotheses over geological timescales: interactions between Mesozoic non-avian dinosaurs and cycadsBIOLOGICAL REVIEWS, Issue 1 2009Richard J. Butler Abstract The significance of co-evolution over ecological timescales is well established, yet it remains unclear to what extent co-evolutionary processes contribute to driving large-scale evolutionary and ecological changes over geological timescales. Some of the most intriguing and pervasive long-term co-evolutionary hypotheses relate to proposed interactions between herbivorous non-avian dinosaurs and Mesozoic plants, including cycads. Dinosaurs have been proposed as key dispersers of cycad seeds during the Mesozoic, and temporal variation in cycad diversity and abundance has been linked to dinosaur faunal changes. Here we assess the evidence for proposed hypotheses of trophic and evolutionary interactions between these two groups using diversity analyses, a new database of Cretaceous dinosaur and plant co-occurrence data, and a geographical information system (GIS) as a visualisation tool. Phylogenetic evidence suggests that the origins of several key biological properties of cycads (e.g. toxins, bright-coloured seeds) likely predated the origin of dinosaurs. Direct evidence of dinosaur,cycad interactions is lacking, but evidence from extant ecosystems suggests that dinosaurs may plausibly have acted as seed dispersers for cycads, although it is likely that other vertebrate groups (e.g. birds, early mammals) also played a role. Although the Late Triassic radiations of dinosaurs and cycads appear to have been approximately contemporaneous, few significant changes in dinosaur faunas coincide with the late Early Cretaceous cycad decline. No significant spatiotemporal associations between particular dinosaur groups and cycads can be identified , GIS visualisation reveals disparities between the spatiotemporal distributions of some dinosaur groups (e.g. sauropodomorphs) and cycads that are inconsistent with co-evolutionary hypotheses. The available data provide no unequivocal support for any of the proposed co-evolutionary interactions between cycads and herbivorous dinosaurs , diffuse co-evolutionary scenarios that are proposed to operate over geological timescales are plausible, but such hypotheses need to be firmly grounded on direct evidence of interaction and may be difficult to support given the patchiness of the fossil record. [source] | ||||||||||||||||