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Northern Europe (northern + europe)
Selected AbstractsCould the tree diversity pattern in Europe be generated by postglacial dispersal limitation?ECOLOGY LETTERS, Issue 6 2007Jens-Christian Svenning Abstract The relative importance of contemporary climate and history as controls of geographical diversity patterns is intensely debated. A key example is the controversy over the extent to which temperate tree distributions and diversity patterns reflect postglacial dispersal limitation. Here, we focus on Central and Northern Europe, and show that recent estimates of tree migration rates < 100 m year,1 imply that many species have probably not reached equilibrium with climate in this region. We then demonstrate that geographical accessibility from glacial refuges explains 78% of the geographical variation in the region's tree diversity and is a much stronger diversity predictor than climate. Finally, we show that realistic estimates of migration rates can be derived from the observed tree diversity pattern by assuming it to be purely dispersal driven. In conclusion, the tree diversity pattern in Central and Northern Europe could, to a large extent, be a result of postglacial dispersal limitation. [source] Review of carrot fly control in Northern Europe , 2009,EPPO BULLETIN, Issue 2 2009R. Collier In February 2009, the European and Mediterranean Plant Protection Organization (EPPO) held a workshop to discuss the management of carrot fly (Psila rosae) within Europe. Prior to the workshop, participants completed a questionnaire about carrot fly and current control methods and some of the information is summarised in this paper. In general, this pest is controlled adequately at present, but there is a heavy reliance on insecticides. The responses to the questionnaire highlighted a number of issues, in particular: the limited range and efficacy of the insecticides available at present, concerns about the availability of effective control measures in the future and a need for improvements in the targeting of treatments through forecasting and monitoring and the use of treatment thresholds. [source] Immune thrombocytopenic purpura: epidemiology and implications for patientsEUROPEAN JOURNAL OF HAEMATOLOGY, Issue 2009Marc Michel Abstract The age-adjusted prevalence of immune thrombocytopenic purpura (ITP) is estimated to be 9.5 per 100 000 persons in the USA while its annual incidence is estimated to be 2.68 per 100 000 in Northern Europe (at a cut-off platelet count of <100 × 109/L). The mean age of adults at diagnosis in Europe is 50 yrs and the incidence of ITP increases with age. Both the treatments used to treat patients with ITP and the disease itself can impact on patient health-related quality of life (HRQoL). As the incidence of ITP in Europe rises, especially in the elderly, the number of patients with a decreased HRQoL is increasing. Literature searches and focus groups have aided the development of a conceptual model to assess HRQoL. In this model, low platelet counts and the associated symptoms of ITP in addition to the side effects of treatment are proposed as the main determinants of a negatively impacted HRQoL. Primary conceptual domains of HRQoL, affected in patients with ITP, include emotional health, functional health, work, social and leisure activities and reproductive health. As treatment benefits are likely to improve these domains, the conceptual model could be used for better management of patients, taking into account HRQoL. The short-form 36-item questionnaire (SF-36) and the ITP Patient Assessment Questionnaire (ITP-PAQ) are validated measures of HRQoL which can provide a comprehensive assessment of numerous factors to help evaluate decisions about patient management. Future clinical trials investigating treatment options for ITP should assess HRQoL using these validated questionnaires. [source] First records of soilborne Phytophthora species in Swedish oak forestsFOREST PATHOLOGY, Issue 3 2003U. Jönsson Summary Thirty-two oak stands in southern Sweden, 27 with predominantly declining trees and five with a higher proportion of healthy trees were investigated regarding the presence of soilborne Phytophthora species. Phytophthora quercina, an oak-specific fine root pathogen, was isolated from rhizosphere soil samples in 10 of the 27 declining stands. Additionally, P. cactorum and P. cambivora were recovered from one stand each. No Phytophthora species were isolated from the healthy oak stands. The soil conditions at the sites from which Phytophthora spp. were recovered ranged from mesic sediments to moraines, with clayey to silty textures and with soil pH (BaCl2) between 3.5 and 5.0. The results show that P. quercina is geographically widespread in oak stands in southern Sweden and indicate that this pathogen may be one of the factors involved in oak decline in Northern Europe as has already been shown for western, Central and parts of southern Europe. Zusammenfassung In Südschweden wurden 27 erkrankte und 5 gesunde Eichenbestände auf das Vorkommen bodenbürtiger Phytophthora, Arten untersucht. Dabei wurde P. quercina, ein für Eichen spezifisches Feinwurzelpathogen, aus Rhizosphären , Proben von 10 der 27 erkrankten Bestände isoliert. Zusätzlich wurden P. cactorum und P. cambivora in jeweils einem erkrankten Bestand gefunden. Im Gegensatz dazu konnte in den gesunden Beständen keine Phytophthora, Art nachgewiesen werden. Die Bodenverhältnisse der Bestände, in denen Phytophthora spp. gefunden wurden, reichten von frischen bis feuchten Böden aus Sedimenten und Moränen mit schluffiger bis toniger Textur und pH , Werten (BaCl2) zwischen 3.5 und 5.0. Die weite Verbreitung von P. quercina in erkrankten Eichenbeständen in Südschweden spricht dafür, dass das Pathogen im Krankheitskomplex des Eichensterbens in Nordeuropa eine Rolle spielt, wie dies bereits für Mittel- und Westeuropa sowie Teile Südeuropas gezeigt worden ist. Résumé La présence d'espèces de Phytophthora telluriques a été recherchée dans trente-deux chênaies du sud de la Suède, 27 à dominance d'arbres dépérissants et 5 avec une plus forte proportion d'arbres sains. P. quercina, pathogène des racines fines et spécifique des chênes, a été isolé dans 10 des 27 échantillons de sol, prélevés dans la rhizosphère, des peuplements dépérissants. P. cactorum et P. cambivora ont également été isolés, chacun dans un de ces peuplements. Aucune espèce de Phytophthora n'a été isolée des peuplements sains. Les conditions édaphiques des sites d'où ont été isolés des Phytophthora spp. varient de sédiments mésiques à des moraines, avec des textures argileuses à limoneuses et un pH (BaCl2) compris entre 3.5 et 5.0. Ces résultats montrent que P. quercina présente une large répartition géographique dans les chênaies du sud de la Suède et indiquent que ce pathogène pourrait être l'un des facteurs impliqués dans les dépérissements de chênes du Nord de l'Europe, comme il a déjàété montré pour l'Europe Centrale, de l'Ouest et certaines zones de l'Europe du Sud. [source] Assessing macroinvertebrate metrics for classifying acidified rivers across northern EuropeFRESHWATER BIOLOGY, Issue 7 2010S. JANNICKE MOE Summary 1. The effects of acidification on ecological status of rivers in Northern Europe must be assessed according to the EU Water Framework Directive (WFD). Several acidification metrics based on macroinvertebrates already exist in different countries, and the WFD requires that they be comparable across northern Europe. Thus, we compiled macroinvertebrate monitoring data from the U.K. (n = 191 samples), Norway (n = 740) and Sweden (n = 531) for analysis against pH. 2. We tested new and existing acidification metrics developed nationally and used within the Northern Geographical Intercalibration Group. The new metrics were based on the acidification sensitivity of selected species and are proposed as a first step towards a new common indicator for acidification for Northern Europe. 3. Metrics were assessed according to responsiveness to mean pH, degree of nonlinearity in response and consistency in responses across countries. We used flexible, nonparametric regression models to explore various properties of the pressure,response relationships. Metrics were also analysed with humic content (total organic carbon above/below 5 mg L,1) as a covariate. 4. Most metrics responded clearly to pH, with the following metrics explaining most of the variance: Acid Water Indicator Community, Number of ephemeropteran families, Medin's index, Multimetric Indicator of Stream Acidification and the new metric ,Proportion of sensitive Ephemeroptera'. 5. Most metrics were significantly higher in humic than in clear-water rivers, suggesting smaller acidification effects in humic rivers. This result supports the proposed use of humic level as a typological factor in the assessment of acidification. 6. Some potentially important effects could not be considered in this study, such as the additional effects of metals, episodic acidification and the contrasting effects of natural versus anthropogenic acidity. We advocate further data collection and testing of metrics to incorporate these factors. [source] Population differences in the International Multi-Centre ADHD Gene ProjectGENETIC EPIDEMIOLOGY, Issue 2 2008Benjamin M. Neale Abstract The International Multi-Centre ADHD Gene sample consists of 674 families from eight countries (Belgium, England, Germany, Holland, Ireland, Israel, Spain, and Switzerland) ascertained from clinics for combined-type attention definity hyperactivity disorder in an offspring. 863 SNPs were successfully genotyped across 47 autosomal genes implicated in psychiatric disorders yielding a single nucleotide polymorphism (SNP) density of approximately one SNP per 2.5,kb. A global test of heterogeneity showed 269 SNPs nominally significant (expected 43). Inclusion of the Israeli population accounted for approximately 70% of these nominally significant tests. Hardy-Weinberg equilibrium tests suggest that combining all these populations would induce stratification, but that the Northern European populations (Belgium, England, Germany, Holland, and Ireland) could be appropriate. Tag SNPs were generated using pair-wise and aggressive tagging from Carlson et al. [2004] and de Bakker et al. [2005], respectively, in each population and applied to the other populations. Cross-population performance across Northern Europe was consistent with within population comparisons. Smaller sample size for each population tended to yield more problems for the generation of aggressive tags and the application of pair-wise tags. Any case-control sample employing an Israeli sample with Northern Europeans must consider stratification. A Northern European tag set, however, appears to be appropriate for capturing the variation across populations. Genet. Epidemiol. 2008. © 2007 Wiley-Liss, Inc. [source] Forum on: the role of recombinant factor VIII in children with severe haemophilia AHAEMOPHILIA, Issue 2 2009M. FRANCHINI Summary., The development of recombinant FVIII (rFVIII) products, fuelled by the need for improved safety of treatment arising from the dramatic widespread blood-borne virus transmission in the 1970,1980s revolutionized the care of children with haemophilia A over the last two decades. The larger availability of perceived safer replacement therapy associated with the introduction of rFVIII products reassured the haemophilia community and there was a strong push in some Western countries to treat haemophilic children only with rFVIII. Moreover, this significantly contributed in the 1990s to the diffusion outside Northern Europe of prophylactic regimens implemented at an early age to prevent bleeding and the resultant joint damage (i.e. primary prophylaxis), together with the possibility of home treatment. These changes led to a substantial improvement of the quality of life of haemophilic children and of their families. The general agreement that primary prophylaxis represents the first-choice treatment for haemophilic children has been recently supported by two randomized controlled trials carried out with rFVIII products, providing evidence on the efficacy of early prophylaxis over on-demand treatment in preserving joint health in haemophilic children. However, the intensity and optimal modalities of implementation of prophylaxis in children, in particular with respect to the issue of the venous access, are still debated. A number of studies also supports the role of secondary prophylaxis in children, frequently used in countries in which primary prophylaxis was introduced more recently. With viral safety now less than an issue and with the more widespread use of prophylaxis able to prevent arthropathy, the most challenging complication of replacement therapy for children with haemophilia remains the risk of inhibitor development. Despite conflicting data, there is no evidence that the type of FVIII concentrate significantly influences the complex multifactorial process leading to anti-FVIII alloantibodies, whereas other treatment-related factors are likely to increase (early intensive treatments due to surgery or severe bleeds) or reduce (prophylaxis) the risk. Although the optimal regimen is still uncertain, eradication of anti-FVIII antibodies by immune tolerance induction (ITI), usually with the same product administered at inhibitor detection, should be the first-choice treatment for all patients with recent onset inhibitors. This issue applies particularly to children, as most patients undergo ITI at an early age, when inhibitors usually appear. The availability of a stable and long-lasting venous access represents a leading problem also in this setting. These and other topics concerning rFVIII treatment of haemophilic children were discussed in a meeting held in Rome on 27 February 2008 and are summarized in this report. [source] Haplotype Analysis Confirms the Association Between the HCRTR2 Gene and Cluster HeadacheHEADACHE, Issue 7 2008Innocenzo Rainero MD Background., Several studies suggested that genetic factors play a role in cluster headache (CH) susceptibility. We found a significant association between the 1246 G>A polymorphism of the hypocretin receptor-2 (HCRTR2) gene and the disease. This association was confirmed in a large study from Germany but was not replicated in a dataset of CH patients from Northern Europe. Objective., The purpose of this study was to further evaluate the association between CH and the HCRTR2 gene using new polymorphisms, estimating the frequency of different gene haplotypes, searching for gene mutations, and evaluating the effects of the examined polymorphisms on hypocretin binding sites. Methods., We genotyped 109 CH patients and 211 healthy controls for 5 new polymorphisms of the HCRTR2 gene and we inferred different gene haplotypes. Complete HCRTR2 sequencing was undertaken for 11 independent CH patients, 5 of whom had a positive family history. The effects of the 1246 G>A polymorphism on the hypocretin binding sites were evaluated using different computer-assisted analyses. Results., Three new polymorphisms of the HCRTR2 gene resulted significantly associated with CH. The GTAAGG haplotype resulted more frequent in cases than in controls (OR: 3.68; 95% CI: 1.85-7.67). No point mutation of the HCRTR2 gene was found. Binding analyses showed that the 1246 G>A polymorphism (substitution of valine at position 308 by isoleucine) has no effect on the hypocretin binding sites but could influence the dimerization process of the receptor. Conclusion., Our data confirm previous studies suggesting that the HCRTR2 gene or a linked locus significantly modulates the risk for CH. In addition, we suggest that the V308I substitution of the HCRTR2 may interfere with the dimerization process of the receptor, thereby influencing its functional activity. [source] Sexual activity as a risk factor for hepatitis CHEPATOLOGY, Issue S1 2002M.P.H., Norah A. Terrault M.D. The accumulated evidence indicates that hepatitis C virus (HCV) can be transmitted by sexual contact but much less efficiently than other sexually transmitted viruses, including hepatitis B virus and human immunodeficiency virus (HIV). However, because sex is such a common behavior and the reservoir of HCV-infected individuals is sizable, sexual transmission of HCV likely contributes to the total burden of infection in the United States. Risk of HCV transmission by sexual contact differs by the type of sexual relationship. Persons in long-term monogamous partnerships are at lower risk of HCV acquisition (0% to 0.6% per year) than persons with multiple partners or those at risk for sexually transmitted diseases (0.4% to 1.8% per year). This difference may reflect differences in sexual risk behaviors or differences in rates of exposure to nonsexual sources of HCV, such as injection drug use or shared razors and toothbrushes. In seroprevalence studies in monogamous, heterosexual partners of HCV-infected, HIV-negative persons, the frequency of antibody-positive and genotype-concordant couples is 2.8% to 11% in Southeast Asia, 0% to 6.3% in Northern Europe, and 2.7% in the United States. Among individuals at risk for sexually transmitted diseases (STDs), the median seroprevalence of antibody to HCV (anti-HCV) is 4% (range, 1.6% to 25.5%). HIV coinfection appears to increase the rate of HCV transmission by sexual contact. Current recommendations about sexual practices are different for persons with chronic HCV infection who are in steady monogamous partnerships versus those with multiple partners or who are in short-term sexual relationships. (HEPATOLOGY 2002;36:S99,S105). [source] Air temperature impacts over Eastern North America and Europe associated with low-frequency North Atlantic SST variabilityINTERNATIONAL JOURNAL OF CLIMATOLOGY, Issue 1 2009Anthony Arguez Abstract Air temperature anomalies over eastern North America and Europe are analysed during the extreme phases of the two leading low-frequency modes of North Atlantic sea surface temperature (SST) during the 1906,2005 period. The leading mode of SST is a multi-decadal signal,commonly referred to as the Atlantic multi-decadal oscillation,with uniform polarity over the North Atlantic. Air temperature anomalies over the eastern United States and Northern Europe during extreme phases of this mode are of the same sign as the corresponding SST anomalies. The most intense air temperature impacts occur in summer months. The second mode exhibits considerable spectral energy in the quasi-decadal (,12 year) range. The spatial signature and associated air temperature anomalies of mode 2 are strongly correlated with both SST and land temperature impacts of the North Atlantic Oscillation (NAO). Copyright © 2008 Royal Meteorological Society [source] Worldwide-Schizophrenia Outpatient Health Outcomes (W-SOHO): baseline characteristics of pan-regional observational data from more than 17,000 patients,INTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 11 2009J. Karagianis Summary Objective:, To describe the Worldwide-Schizophrenia Outpatient Health Outcomes (W-SOHO) patient population at study entry, focusing on illness burden and prescribing practices across regions. Methods:, The SOHO study was a 3-year, prospective, observational study designed to assess costs and outcomes associated with antipsychotic use in outpatients initiating or changing antipsychotic (with an emphasis on olanzapine compared with other antipsychotics). SOHO was conducted in 10 European countries and 27 other countries as Intercontinental SOHO (IC-SOHO). Data from all countries have been pooled to produce the W-SOHO dataset. Main outcomes measures:, Clinical Global Impression-Schizophrenia (CGI-SCH) severity scores, psychotropic medication use, adverse events, social interaction, housing and employment status, self-perceived health state (EuroQoL EQ-5D scale and Visual Analogue Scale, EQ-VAS), and reasons for initiation/change of antipsychotic. Results:, The W-SOHO database comprises 17,384 patients from six regions; East Asia (n = 1223), Central and Eastern Europe (n = 2175), Northern Europe (n = 4291), Southern Europe (n = 5788), Latin America (n = 2566), North Africa and the Middle East (n = 1341). Overall, patients were 38 ± 13 years old (mean ± SD), moderately ill (mean CGI-SCH overall score of 4.4 ± 1.0) with a median duration of illness of 7 years (interquartile range 1,16 years); 43% were female, 10% were receiving antipsychotic medication for the first time. Adverse events were prevalent across all regions; on average, 50% (range 41,59%) of patients taking antipsychotics exhibited extrapyramidal symptoms at baseline, and 62% (34,67%) of patients reported sexual dysfunction in the previous month. On average, only 19% (16,23%) of patients were in paid employment and as many as 69% were living in dependent housing. Conclusions:, Despite inherent diversity in these patients and the health care systems supporting them, there are striking cross-regional similarities in baseline characteristics for most measures. Not all countries are represented; regional comparisons may not be valid outside of the countries studied. [source] Spatio-temporal pattern of Pentastiridius leporinus migration in an ephemeral cropping systemAGRICULTURAL AND FOREST ENTOMOLOGY, Issue 1 2010Alberto Bressan 1Cixiid planthoppers (Hemiptera: Fulgoromorpha: Cixiidae) are considered to be important economic pests because of their ability to transmit phloem-restricted prokaryotes causing emerging plant diseases worldwide. However, little information is available on the biology and ecology of such species. This is the case for Pentastiridius leporinus (Linnaeus), a cixiid planthopper reported to live on common reed across Countries of Central and Northern Europe. However, in the east of France, the same planthopper species appears to complete its life cycle in the sugar beet-wheat cropping system and has been repeatedly shown to transmit prokaryotic plant pathogens that are associated with an emerging disease of sugar beet called syndrome ,basses richesses'. 2To gather evidence on the biology of the planthopper in the cropping rotation, we analysed the flight activity of adults. We used transparent sticky traps for sampling migrating adults and quantified nymphs as well as emerging adults on the roots of wheat plants. 3Results showed a significant correlation between disappearance of nymphs and emerging adults from wheat roots and the occurrence of migrant adults in nearby sugar beet fields. Planthoppers migrated more abundantly and colonized sugar beet for longer periods than any other crop available. Flight activity was very pronounced during the migratory phase that was extended from the middle of June to the middle of July. A geographic information system and geostatical analysis revealed that planthoppers flew and colonized the centre of the sugar beet field rather than the borders. 4Overall, results obtained in the present study suggest that the ecology and biology of the planthopper vector in the cropping rotation is a primary factor that leads to the emergence of the syndrome ,basses richesses' disease of sugar beet. [source] Biology of the European large raspberry aphid (Amphorophora idaei): its role in virus transmission and resistance breakdown in red raspberryAGRICULTURAL AND FOREST ENTOMOLOGY, Issue 1 2009Lindsay S. McMenemy Abstract 1,The European large raspberry aphid Amphorophora idaei Börner is the most important vector of viral diseases afflicting commercially grown red raspberry (Rubus idaeus L.) in Northern Europe, with European raspberry production amounting to 416 000 tonnes per annum. This review synthesizes existing knowledge on its biology and interactions with other organisms, including its host plant and the viral pathogens it vectors. 2,Information about trophic interactions with other insect herbivores and natural enemies is reviewed. Vine weevils Otiorhynchus sulcatus compromise aphid resistance in some raspberry cultivars, increasing A. idaei abundance by 80%. Parasitoids show mixed success in parasitizing A. idaei, although Aphidius ervi attack rates more than doubled when A. idaei fed on a partially susceptible raspberry cultivar, compared with a resistant variety. These findings are discussed in the context of potential biological control as part of an integrated pest and disease management framework. 3,Amphorophora idaei transmits four known viruses: Black raspberry necrosis virus, Raspberry leaf mottle virus, Raspberry leaf spot virus and Rubus yellow net virus, with A. idaei taking as little as 2 min to transmit some viruses. 4,Existing control strategies, including resistant cultivars, insecticides and eradication of disease from parent plants, are described. In particular, strong selection pressures have resulted in A. idaei overcoming genetic resistance in many raspberry cultivars and most insecticides are now ineffective. 5,Future directions for the sustained control of A. idaei are suggested, taking into consideration the possible effects of climate change and also changes in agronomic practices in U.K. agriculture. [source] Prevalence of HBV genotypes in Central and Eastern EuropeJOURNAL OF MEDICAL VIROLOGY, Issue 10 2008Katja Deterding Abstract The importance of hepatitis B virus (HBV) genotypes for disease progression and response to interferon-alpha-based treatment is well established. While almost all patients in the Mediterranean area are infected with HBV genotype D, HBV genotype A is dominant in Northern Europe. However, the distribution of HBV genotypes is unknown for several Central and Eastern European countries. Data are described of 1313 HBsAg-positive patients recruited at 14 referral centers in eight countries. There were only very few cases of HBV genotype B, C, E, F, and H infection while HBV genotypes A and D were found in 42% and 48% of patients, respectively. Eight percent of patients had positive bands for more than one genotype using the hybridization assay. The frequency of genotype A was higher in Poland (77%) and the Czech Republic (67%) as compared to Hungary (47%), Lithuania (41%), Croatia (8%), and Germany (32%). In contrast, HBV genotype D was most frequent in Croatian, Romanian, and Russian patients with 80%, 67%, and 93% of cases, respectively. In conclusion, HBV genotype A versus D showed significantly different distribution patterns in Central and Eastern Europe which deserves consideration for national guidelines and treatment decisions. J. Med. Virol. 80:1707,1711, 2008. © 2008 Wiley-Liss, Inc. [source] Towards a Holocene tephrochronology for Sweden: geochemistry and correlation with the North Atlantic tephra stratigraphyJOURNAL OF QUATERNARY SCIENCE, Issue 2 2004Jane Boygle Abstract Northern Europe has been affected by fallout of tephra from volcanic eruptions in Iceland throughout at least the Late-glacial and Holocene. Microscopic volcanic ash horizons found in the British Isles, northern Germany and Scandinavia (e.g. Hekla 4) now provide important regional isochrons. Over recent years analytical techniques such as electron probe microanalysis (EPMA) have helped identify these distal tephra layers by glass geochemistry. Early tephra work in Sweden used refractive indices and bracketing radiocarbon dates for identification, resulting in tentative correlation. This paper presents geochemical data for Icelandic Holocene tephra in Sweden. Several sites in central Sweden have four distinct mid-Holocene tephra layers. Correlation with the Icelandic record indicates that the following tephra layers are present: Hekla 4 (ca. 3830,yr,BP), Kebister tephra (ca. 3600,yr,BP), Hekla 3 (ca. 2880,yr,BP) and Askja ad 1875. Preliminary analyses suggest that more, previously unidentified, tephra layers are present in low concentrations in the region, indicating potential for expanding the Swedish tephrochronology for palaeoecological and palaeoenvironmental work in northern Europe. Copyright © 2004 John Wiley & Sons, Ltd. [source] Reducing runoff by managing crop location at the catchment level, considering agronomic constraints at farm levelLAND DEGRADATION AND DEVELOPMENT, Issue 5 2006A. Joannon Abstract Runoff and erosion cause frequent damage through muddy floods in the loess belt of Northern Europe. One possibility for reducing damage is to lower runoff on agricultural land by spatially alternating different crops at the catchment level. But crop location results from decisions taken at the farm level. This study aimed to assess the existing leeway to modify crop location in the farms of a catchment, in order to reduce runoff at the catchment's outlet. The case study was the Bourville catchment (1086,ha), cultivated by 28 farmers and located in Pays de Caux, France. First, crop location rules in the 14 main farms of the catchment were analysed on the basis of surveys carried out with farmers, distinguishing spatial constraints from temporal ones. These rules made it possible to simulate crop location on each farm territory for the 2001,2002 crop year. Each field of the catchment was classified depending on whether one or several crops could be sown, taking into account both field history and farmer decision rules. Then two extreme scenarios of crop location in the Bourville catchment were built. Runoff simulation at the outlet with the STREAM model showed that runoff could be reduced while sticking to current farmer decision rules in terms of crop location. Depending on rainfall event characteristics, runoff reduction varied between 13·5,per,cent and 4·5,per,cent. Copyright © 2006 John Wiley & Sons, Ltd. [source] The recolonization of Europe by brown bears Ursus arctos Linnaeus, 1758 after the Last Glacial MaximumMAMMAL REVIEW, Issue 2 2005R. S. SOMMER ABSTRACT 1.,At the end of the Last Glacial Maximum brown bears Ursus arctos recolonized the glacial landscape of Central and Northern Europe faster than all other carnivorous mammal species of the Holocene fauna. Ursus arctos was recorded in Northern Europe from the beginning of the Late-Glacial. The recolonization of northern Central Europe may have taken place directly after the maximum glaciation. The distribution of the brown bear was restricted to glacial refugia only during the Last Glacial Maximum, for probably no more than 10 000 years. 2.,Genetic analyses have suggested three glacial refugia for the brown bear: the Iberian Peninsula, the Italian Peninsula and the Balkans. Subfossil records of Ursus arctos from north-western Moldova as well as reconstructed environmental conditions during the Last Glacial Maximum in this area suggest to us a fourth glacial refuge for the brown bear. Because of its connection to the Carpathians, we designate this as the ,Carpathian refuge'. 3.,Due to the low genetic distance between brown bears of northern Norway, Finland, Estonia, north-eastern Russia and the northern Carpathians (the so-called eastern lineage), the Carpathians were considered the geographical origin of the recolonization of these regions. During the recolonization of northern Europe the brown bear probably reached these areas rapidly from the putative Carpathian refuge. [source] Post-ice age recolonization and differentiation of Fucus serratus L. (Phaeophyceae; Fucaceae) populations in Northern EuropeMOLECULAR ECOLOGY, Issue 7 2003J. A. Coyer Abstract The seaweed Fucus serratus is hypothesized to have evolved in the North Atlantic and present populations are thought to reflect recolonization from a southern refugium since the last glacial maximum 18 000,20 000 years bp. We examined genetic structure across several spatial scales by analysing seven microsatellite loci in populations collected from 21 localities throughout the species' range. Spatial auto-correlation analysis of seven microsatellite loci revealed no evidence for spatial clustering of alleles on a scale of 100 m despite limited gamete dispersal in F. serratus of , 2 m from parental individuals. Pairwise , analysis suggested that the minimal panmictic unit for F. serratus was between 0.5 and 2 km. Isolation by distance was significant along some contiguous coastlines. Population differentiation was strong within the Skagerrak,Kattegat,Baltic Seas (SKB) (global ,= 0.17) despite a short history of , 7500 years. A neighbour-joining tree based on Reynold's distances computed from the microsatellite data revealed a central assemblage of populations on the Brittany Peninsula surrounded by four well-supported clusters consisting of the SKB, the North Sea (Ireland, Helgoland), and two populations from the northern Spanish coast. Samples from Iceland and Nova Scotia were most closely aligned with northwest Sweden and Brittany, respectively. When sample sizes were standardized (N = 41), allelic diversity was twofold higher for Brittany populations than for populations to the north and threefold higher than southern populations. The Brittany region may be a refugium or a recolonized area, whereas the Spanish populations most likely reflect present-day edge populations that have undergone repeated bottlenecks as a consequence of thermally induced cycles of recolonization and extinction. [source] Matrilinear phylogeography of Atlantic salmon (Salmo salar L.) in Europe and postglacial colonization of the Baltic Sea areaMOLECULAR ECOLOGY, Issue 1 2001J. Nilsson Abstract Sixty-four samples from 46 salmon populations totalling 2369 specimens were used for polymerase chain reaction,restriction fragment length polymorphism (PCR,RFLP) analysis of the mitochondrial ND1 region. The final analyses included 3095 specimens from 60 populations in Northern Europe. A subsample was analysed by RFLP of ND3/4/5/6. Representative RFLP haplotypes from different parts of the distribution area were sequenced and the phylogeny of European haplotypes and their relations to the North American lineage was described. The four common European haplotypes derive from the ancestral ND1-BBBA (rooting the European clade to the North American) by one-step substitutions: AAAA < AABA < BBBA > BBBB. The Swedish west-coast populations differ from the geographically close southern Baltic, indicating absence of inward and limited outward gene flow through the Danish straits during the last 8000 years. Within the Baltic Sea, only three ND1 haplotypes were detected and there was no variation for ND3/4/5/6. In the whole southern Baltic and in lakes Vänern, Ladoga and Onega the haplotype AABA dominated. Proposed postglacial colonization routes to the Baltic Sea are discussed in relation to the haplotype distribution pattern. [source] Five new microsatellite markers for Northern pike (Esox lucius)MOLECULAR ECOLOGY RESOURCES, Issue 3 2003Sophie Launey Abstract Five new microsatellite markers were isolated from Northern pike (Esox lucius), a freshwater fish widely distributed in both Northern Europe and Northern America. Characterization in 30 individuals from a population from France revealed four to seven alleles and an expected heterozygosity of 0.243,0.642. No departure from Hardy,Weinberg equilibrium nor linkage disequilibrium were found. The level of polymorphism was higher than previously reported in the literature for pike populations from Northern America and Northern Europe, but with different microsatellite loci. [source] Why red-dominated autumn leaves in America and yellow-dominated autumn leaves in Northern Europe?NEW PHYTOLOGIST, Issue 3 2009Simcha Lev-Yadun First page of article [source] Solar UVR exposures of indoor workers in a Working and a Holiday Period assessed by personal dosimeters and sun exposure diariesPHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE, Issue 6 2001E. Thieden Background/Aim: The aim of this study was to quantify ultraviolet radiation (UVR) exposure of fully employed indoor workers during a Working Period and a Holiday Period in the summer months. A further aim was to investigate the correlation between individual personal UVR dosimeter reading and self-reported data in a diary about sun exposure habits and to investigate whether skin type, age and gender influence sun exposure. Methods: The solar UVR, in standard erythema doses (SED) measured by UV sensitive spore-film filter type personal dosimeters (VioSpor®), and sun exposure diaries were compared. The study included 44 healthy Danish adult indoor workers during a Working Period of a mean of 13 days and a Holiday Period of a mean of 17 days from June to September. Results: The individual total UVR exposure correlated significantly (P<0.001) in both the Holiday and Working Periods with individual total hours spent outdoors from 07:00 to 19:00 and with skin area exposure hours. There was no significant correlation between sun exposure dose and gender, age or skin type I-IV, or between the individual solar exposure dose in the Working and the Holiday Period. However, subjects with UVR exposures in the upper quartile spent their Holiday Period in Southern Europe, and/or had been more than the mean time outdoors at the beach/sea and/or between 12:00 and 15:00. Subjects with UVR exposure in the lower quartiles spent their holidays in Denmark or Northern Europe and did not stay at the beach at all. They received an average solar UVR dose which was 22% of ambient in Denmark in the same period while subjects having their holidays in Southern Europe received as much as 90% of the ambient dose in Denmark. Conclusions: Despite information campaigns to avoid the midday sun, on average 35% of the recorded hours outdoors were spent between 12:00 and 15:00 in the Holiday Period. Total hours outdoors give the best estimate of the total sun exposure dose. Registration in a diary of total hours outdoors and whether the Holiday Period was in Northern or Southern Europe can be used to predict the solar exposure dose in a Holiday Period of a few weeks. [source] Drafting the BOLERO PlanPUBLIC ADMINISTRATION REVIEW, Issue 6 2009Gene A. Brewer Editor This year marks the sixty-fifth anniversary of the D-Day invasion, when Allied forces crossed the English Channel and established beachheads along a 50-mile stretch of the Normandy coast in northern France. Troops overcame stiff resistance and systematically moved inland, liberating Northern Europe and forcing the surrender of Germany and the end of World War II in that part of the world. The D-Day invasion took place on June 6, 1944, but its planning began more than two years earlier. This case studies the strategic planning that led up to the invasion. The Operations Division of the War Department General Staff, formerly known as the War Plans Division, was the principal staff agency of the U.S. Army high command during World War II. The story focuses on the Operations Division's role in formulating a strategic plan for ending the war as well as Operation BOLERO,the American military troop buildup in Great Britain that preceded the cross-channel invasion. By reprinting this case from the original U.S. Army historical record, PAR pays tribute to the brave men and women who planned and executed this bold maneuver, many of whom paid the ultimate price to achieve victory and restore freedom. Popularized as the "Greatest Generation," they were ordinary people who answered the call of public service with extraordinary bravery and sacrifice. Members of the modern-day public administration community proudly stand on their shoulders. This chapter-length excerpt is taken from Ray S. Cline, Washington Command Post: The Operations Division (Washington, DC: Office of the Chief of Military History, Department of the Army, 1951), chapter IX, "Case History: Drafting the BOLERO Plan," pp. 143,63. [source] High-resolution limited-area ensemble predictions based on low-resolution targeted singular vectorsTHE QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, Issue 582 2002Inger-Lise Frogner Abstract The operational limited-area model, HIRLAM, at the Norwegian Meteorological Institute is used at 0.25° latitude/longitude resolution for ensemble weather prediction over Northern Europe and adjacent parts of the North Atlantic Ocean; this system is called LAMEPS. Initial and lateral boundary perturbations are taken from coarse-resolution European Centre for Medium-Range Weather Forecasts global ensemble members based on targeted singular vectors (TEPS). Five winter and five summer cases in 1997 consisting of 20 ensemble members plus one control forecast are integrated. Two sets of ensembles are generated, one for which both initial and lateral boundary conditions are perturbed, and another with only the initial fields perturbed. The LAMEPS results are compared to those of TEPS using the following measures: r.m.s. ensemble spread of 500 hPa geopotential height; r.m.s. ensemble spread of mean-sea-level pressure; Brier Skill Scores (BSS); Relative Operating Characteristic (ROC) curves; and cost/loss analyses. For forecasts longer than 12 hours, all measures show that perturbing the boundary fields is crucial for the performance of LAMEPS. For the winter cases TEPS has slightly larger ensemble spread than LAMEPS, but this is reversed for the summer cases. Results from BSS, ROC and cost/loss analyses show that LAMEPS performed considerably better than TEPS for precipitation, a result that is promising for forecasting extreme precipitation amounts. We believe this result to be linked to the high predictability of mesoscale flows controlled by complex topography. For two-metre temperature, however, TEPS frequently performed better than LAMEPS. Copyright © 2002 Royal Meteorological Society [source] Susceptibility of six Lilium to damage by the lily beetle, Lilioceris lilii (Coleoptera; Chrysomelidae)ANNALS OF APPLIED BIOLOGY, Issue 1 2010A. Salisbury The lily beetle (Lilioceris lilii, Chrysomelidae) feeds on Lilium, Fritillaria and Cardiocrinum plants and is a serious pest in gardens and amenity plantings in parts of Northern Europe and North America. Previous studies have indicated that within the beetle's host range there is variation in susceptibility, although thorough field investigation is lacking. Therefore a 3-year field trial was carried out to assess the susceptibility of six different Lilium to the beetle. The trial was laid out over two replicate blocks, with each block divided into a six by six grid, giving 36 plots; each plot contained nine Lilium of the same type. Lily types were allocated to plots within a block according to a quasi-complete Latin square. The plots were assessed weekly during the growing season over 3 years for plant damage and presence of the beetle. For each plot a damage index for each year was calculated as the average damage score per scoring visit. As beetle presence was low in the first year the damage index, mean adult, larval and egg presence over the final 2 years were analysed using ANOVA. The results indicate that there are significant differences in beetle occurrence and damage on the different Lilium in the trial, however there is also an interaction between damage index and year. The species L. regale and L.,Golden Joy' gave consistently lower damage index/occurrence means than the hybrids L.,Tiber', L.,Brindisi', L.,Conca d'Or' and L.,Eliganzer'. We suggest that future host susceptibility trials should use a standard lily such as L. regale against which others can be compared, should take measurements of both beetle occurrence and damage and be carried out over several years to get reliable results. As there are differences in susceptibility of lilies there is a possibility to use lilies more prone to attack; this could be as trap plants for the beetle. [source] Common Adiponectin Gene Variants Show Different Effects on Risk of Cardiovascular Disease and Type 2 Diabetes in European SubjectsANNALS OF HUMAN GENETICS, Issue 4 2007D. R. Gable Summary Alterations in the secretion of adipokines may explain the link between obesity, type 2 diabetes (T2DM) and coronary artery disease (CAD). These conditions have been associated with variation in the adiponectin gene, although evidence for this relationship has been variable, with differences found even in similar samples. This study aims to clarify these inconsistencies by determining the impact of identified adiponectin gene (ADIPOQ) variants (,11391G>A,,1377C>G[promoter] and +45T>G[exon 2] and +276G>T[intron 2]) on the prospective risk of CAD and T2DM in healthy men, and on adverse metabolic markers, in myocardial infarct survivors and controls from different parts of Europe. The hazard ratio for cardiovascular disease varied across the ,11391GG/GA/AA(p = 0.03) and ,11371CC/CG/GG(p = 0.05) genotypes only. In contrast, only the +45T>G variant (3.80[1.76-8.24]) was associated with T2DM, while two haplotypes GCTT/GCGG (p < 0.05) and +276G>T(p = 0.01) increased risk in interaction with obesity. The variants were associated with a number of biomarkers in Southern but not Northern Europe (p = 0.01), despite no significant differences in allele or haplotype frequencies (p > 0.44). A risk haplotype could not be identified in either sample. Adiponectin gene variants are hence currently poor markers for the development of T2DM and CAD. Their influence on risk depends significantly on interactions that are not currently understood with either genetic variation elsewhere or the environment of the sample studied. [source] Organisational Justice and Citizenship Behaviors: A Study in the Portuguese Cultural ContextAPPLIED PSYCHOLOGY, Issue 3 2010Arménio Rego Theoretical and empirical evidence suggests that justice and organisational citizenship behaviors (OCB), as well as the relationship between them, are not culture free. However, most studies have been carried out in parts of Asia and Northern Europe, and especially in the USA, shedding little understanding on the dynamics of justice and OCB in less-studied contexts. We show how four dimensions of organisational justice predict four dimensions of OCB in an under-studied context,Portugal, a feminine, collectivistic, high power distance and low performance-oriented culture,a profile that is antipodal to that of US culture. A sample of 269 employees reported their justice perceptions, their OCBs being described by supervisors. The findings suggest that: (a) employees are more sensitive to the interactional dimensions of justice than to the procedural and distributive ones; (b) among the interactional dimensions, the interpersonal one is more predictive of some OCB dimensions than the informational one. Des données théoriques et empiriques suggèrent que la justice et les comportements de citoyenneté organisationnelle (OCB), tout comme la relation entre eux, ne sont pas sans base culturelle. Toutefois, la plupart des études ont été menées dans certaines parties de l'Asie, de l'Europe du Nord, et plus particulièrement aux USA, ce qui restreint la compréhension des dynamiques de la justice et des OCB qui peuvent être appréhendés dans d'autres contextes. Nous montrons comment 4 dimensions de la justice organisationnelle prédisent 4 dimensions des OCB dans un contexte peu étudié,le Portugal, une culture féminine, orientée vers la collectivité, avec une forte distance au pouvoir et de faibles performances,, un profil aux antipodes de la culture américaine. Chacun des 269 employés de l'échantillon indique ses perceptions de la justice, ses OCB ont été décrits par ses supérieurs. Les résultats montrent que (a) les employés sont plus sensibles aux dimensions interactionnelles de la justice qu'à celles procédurales et distributives (b) parmi les dimensions interactionnelles, l'interpersonnelle est plus prédictive de certaines dimensions des OCB plutôt que l'informationnelle. [source] Rechnerische Bewertung von Trocknungsverfahren für hochwassergeschädigtes MauerwerkBAUPHYSIK, Issue 2 2006Research Associated Professor John Grunewald Dr.-Ing. Überschwemmungen sind ein globales Phänomen, was durch die jüngsten Ereignisse in Zentral- und Nordeuropa wieder bestätigt wurde. Die Fluten hinterlassen beträchtliche Schäden an Gebäuden und beeinträchtigen das menschliche Zusammenleben. Sind Schäden an Einrichtungen zu verzeichnen, stehen staatliche Institutionen, Versicherungsunternehmen und Reparaturdienstleister in der Verantwortung, die Eigentümer bei der Instandsetzung zu unterstützen. Eine Voraussetzung zur Kostenminimierung ist dabei eine auf die lokalen Gegebenheiten zugeschnittene Trocknungsstrategie, die sowohl die örtlichen klimatischen Bedingungen als auch die verwendeten Baumaterialien einbezieht. Der Beitrag stellt eine Methode zur Bewertung von Trocknungsmaßnahmen hochwassergeschädigter Gebäude aus Ziegelmauerwerk vor. Die Verwendung von Simulationsrechnungen zur Vorhersage des Erfolges verschiedener Trocknungsverfahren wird anhand von unterschiedlichen historischen Mauerwerksarten gezeigt. Es lassen sich Aussagen über die Feuchteabgabe nach innen, über Anzahl und Dauer des Einsatzes von Luftentfeuchtungsgeräten, über den Verlauf der Trocknung, Gesamtdauer und Kosten der Maßnahmen treffen. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) Optimal drying of of flooded masonry structures. Flooding is a global phenomenon as recently highlighted by the major catastrophic events in Central and Northern Europe. When flooding occurs in an area populated by humans, it can cause substantial damage to property and threaten human life. When properties are damaged by flooding, governmental institutions, insurers and repairers are called upon to provide services to homeowners in order to return the dwellings back to a habitable state. As one prerequisite to minimize costs for rehabilitation, such services should comprise drying measures tailored to local particularities as climatic conditions and building material properties. The paper introduces a new methodology to schedule drying measures and to evaluate their success for brick masonry buildings. The capabilities of computer simulation to predict the costs of alternative drying strategies are demonstrated by means of flooded masonry for different types of brickwork frequently used in historical buildings. The numerical simulation of moisture transport in flooded brickwork masonry allows statements about the moisture release to the indoor air, the recommended duration of usage and number of air dehumidifiers, the current drying state, the total time to return the brickwork back to a dry state and the drying costs as function of time. [source] Northern and Southern expansions of Atlantic brown trout (Salmo trutta) populations during the PleistoceneBIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, Issue 4 2009MARTÍ CORTEY The phylogeography of Atlantic brown trout (Salmo trutta) was analysed using mitochondrial DNA control region complete sequences of 774 individuals from 57 locations. Additionally, the available haplotype information from 100 published populations was incorporated in the analysis. Combined information from nested clade analysis, haplotype trees, mismatch distributions, and coalescent simulations was used to characterize population groups in the Atlantic basin. A major clade involved haplotypes assigned to the Atlantic (AT) lineage, but another major clade should be considered as a distinct endemic lineage restricted to the Iberian Peninsula. The phylogeography of the Atlantic populations showed the mixed distribution of several Atlantic clades in glaciated areas of Northern Europe, whereas diverged haplotypes dominated the coastal Iberian rivers. Populations inhabiting the Atlantic rivers of southern France apparently contributed to postglacial colonization of northern basins, but also comprised the source of southern expansions during the Pleistocene. © 2009 The Linnean Society of London, Biological Journal of the Linnean Society, 2009, 97, 904,917. [source] Plant non-specific lipid transfer proteins as food and pollen allergensCLINICAL & EXPERIMENTAL ALLERGY, Issue 9 2004G. Salcedo Summary Several members of the plant non-specific lipid transfer protein (LTP) family have been identified as relevant allergens in foods and pollens. These allergens are highly resistant to both heat treatment and proteolytic digestion. These characteristics have been related with the induction of severe systemic reactions in many patients, and with the possibility of being primary sensitizers by the oral route. A specific geographical distribution pattern of sensitization to LTP allergens has been uncovered. This allergen family is particularly important in the Mediterranean area, but shows a very limited incidence in Central and Northern Europe. The potential role in the plant, as well as the biochemical and allergenic properties of the LTP family, are reviewed here. [source] | ||||||||||||||||||||||||||||||||||||||||||||||