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Selected AbstractsPostgraduate education for doctors in smoking cessationDRUG AND ALCOHOL REVIEW, Issue 5 2009NICHOLAS A. ZWAR Abstract Introduction and Aims. Smoking cessation advice from doctors helps improve quit rates but the opportunity to provide this advice is often missed. Postgraduate education is one strategy to improve the amount and quality of cessation support provided. This paper describes a sample of postgraduate education programs for doctors in smoking cessation and suggests future directions to improve reach and quality. Design and Methods. Survey of key informants identified through tobacco control listserves supplemented by a review of the published literature on education programs since 2000. Programs and publications from Europe were not included as these are covered in another paper in this Special Issue. Results. Responses were received from only 21 key informants from eight countries. Two further training programs were identified from the literature review. The following components were present in the majority of programs: 5 As (Ask, Advise, Assess, Assist and Arrange) approach (72%), stage of change (64%), motivational interviewing (72%), pharmacotherapies (84%). Reference to clinical practice guidelines was very common (84%). The most common model of delivery of training was face to face. Lack of interest from doctors and lack of funding were identified as the main barriers to uptake and sustainability of training programs. Discussion and Conclusions. Identifying programs proved difficult and only a limited number were identified by the methods used. There was a high level of consistency in program content and a strong link to clinical practice guidelines. Key informants identified limited reach into the medical profession as an important issue. New approaches are needed to expand the availability and uptake of postgraduate education in smoking cessation.[Zwar NA, Richmond RL, Davidson D, Hasan I. Postgraduate education for doctors in smoking cessation. Drug Alcohol Rev 2009;28:466,473] [source] Causality and Feedback Between Institutional Measures and Economic GrowthECONOMICS & POLITICS, Issue 1 2000A. Chong Recent cross-section studies have demonstrated a strong link between measures of corruption, bureaucratic quality, property rights, and other institutional variables, and economic growth. In this paper we build on previous research and present some empirical evidence on the direction of causality between institutional measures and growth. It appears that the poorer the country, and the longer the wait, the higher the influence of institutional quality on economic growth. However, we also show the existence of reverse causality. Indeed, it appears that economic growth also causes institutional quality. [source] Education-based group identity and consciousness in the authoritarian-libertarian value conflictEUROPEAN JOURNAL OF POLITICAL RESEARCH, Issue 2 2009RUNE STUBAGER The increasing importance of New Politics or authoritarian-libertarian values to electoral behaviour in advanced Western industrial democracies and the previously documented strong link between such values and educational attainment indicates that, contrary to the claims of some New Politics theorists, the ideological conflict is anchored in the social structure , in particular in educational groups. For this interpretation to be warranted, however, it should be possible to document the existence of education-based group identity and group consciousness related to the value conflict. The article develops indicators of the core variables out of Social Identity Theory. Based on a unique survey from Denmark, which includes the new set of indicators, the analyses show that members of the high and low education groups have developed both group identity and consciousness reflecting a conflict between the groups and that these factors are related to authoritarian-libertarian values. The results are interpreted as reflecting a relationship of dominance, which supports the view that the ideological conflict is structurally anchored. [source] The influence of arbuscular mycorrhizal colonization and environment on root development in soilEUROPEAN JOURNAL OF SOIL SCIENCE, Issue 4 2003D. Atkinson Summary The production of fine roots is one of the principal means by which carbon, fixed during photosynthesis, enters the soil, and quantifying the production for particular combinations of environmental and biotic factors is important for predicting the sequestration of carbon in the soils of grassland ecosystems. Arbuscular mycorrhizal fungi (AMF) can have a major effect on the production of roots, and we studied how colonization by AMF affects the lifespan of roots. Twenty per cent of control roots of Trifolium repens survived for longer than 42 days whereas 37% survived that long in AMF-colonized plants. The overall survival of the roots of Lolium perenne was less than in T. repens: around 10% of roots survived beyond 42 days and this was not affected by AMF colonization. Previous studies have shown that lifespans of roots can be affected by temperature. We tested the hypothesis that these observations are linked to a change in the morphology of the root system caused by temperature and also by AMF. We found that inoculation with AMF in a microcosm study using Plantago lanceolata grown at various temperatures, with and without AMF, showed no clear effect of AMF on branching patterns. Temperature had a significant effect on total lengths, numbers and branching rates of some higher orders of roots. Total lengths of both secondary and tertiary roots grown at 27°C were about double those of plants grown at 15°C. Colonization by AMF tended to reduce this effect. Evidently the effect of colonization by AMF on root lifespan depends on the species. Increased branching, and thus a greater proportion of ephemeral roots, was responsible for shortening the lives of the roots at increased temperature, which suggests a strong link between lifespan and morphology. [source] ,MOVING AROUND': THE SOCIAL AND SPATIAL MOBILITY OF YOUTH IN LUSAKAGEOGRAFISKA ANNALER SERIES B: HUMAN GEOGRAPHY, Issue 3 2008Katherine V. Gough ABSTRACT Claims have recently been made for a ,mobilities paradigm' which is challenging the relative ,a-mobile' focus of much of the social sciences. The agenda drawn up for this mobilities paradigm is clearly based on Northern trends with little consideration of the South. African populations have always been mobile but little is known about the mobility of urban populations and in particular of the youth, who constitute a large proportion of the population. This paper explores the daily and residential mobility of young people in Lusaka building upon interviews held with low- and middle-income youth. The aim is to contribute to discussions of: how mobility varies by gender and class; the links between spatial mobility and social and economic mobility; the nature of the relationship between patterns of mobility and residential structure; and how examining mobility can illuminate many other aspects of young people's lives. Overall the picture emerging from Lusaka is rather bleak. In a context of spiralling economic decline and rising HIV/AIDS rates, the social mobility of youth is predominantly downwards which is reflected in the residential and daily mobility patterns of the young people. There is a strong link between young people's mobility and their livelihoods, an aspect of mobility that is widespread in the South but largely overlooked by the emerging mobilities paradigm. [source] Guided waves at subduction zones: dependencies on slab geometry, receiver locations and earthquake sourcesGEOPHYSICAL JOURNAL INTERNATIONAL, Issue 2 2006S. Martin SUMMARY We investigate the geometry of deep subduction zone waveguides (depth >100 km). The wavefield characteristics for up-dip profiles are described and compared with data recorded at the Chile,Peru subduction zone. Observed distorted P onsets at stations in northern Chile near 21°S can be matched by 2-D finite difference simulations of a thin low-velocity layer (LVL) atop the slab in an IASP91 velocity model. The replacement of the LVL by simple random velocity undulations in the slab in the same model cannot explain the observations. Varying slab geometries are investigated and the distribution of guided wave onsets originating in deep waveguides is predicted relative to the slab surface. Further, double couple source position and orientation is explored and found to be closely limited by the guided wave observations. Sources situated above the layer and at distances more than 2 layer widths below the subducted Moho are not suitable. For the remaining favourable source locations, a strong link between pulse shapes and fault plane dip angle is evident. We conclude that up-dip guided wave observations at subduction zones follow a simple pattern given by slab geometry and modified by source position. The resulting onsets are shaped by layer thickness and velocity contrast and further influenced by the shape of the slab surface. [source] Ecological relevance of laboratory determined temperature limits: colonization potential, biogeography and resilience of Antarctic invertebrates to environmental changeGLOBAL CHANGE BIOLOGY, Issue 11 2010D. K. A. BARNES Abstract The relevance of laboratory experiments in predicting effects of climate change has been questioned, especially in Antarctica where sea temperatures are remarkably stable. Laboratory studies of Southern Ocean marine animal capacities to survive increasing temperature mainly utilize rapid temperature elevations, 100 ×,10 000 × faster than sea temperature is predicted to rise. However, due to small-scale temperature fluctuations these studies may be crucial for understanding colonization patterns and predicting survival particularly through interactions between thermal tolerance and migration. The colonization of disjunct shelves around Antarctica by larvae or adult drift requires crossing or exposure to, rapid temperature changes of up to 2,4 °C over days to weeks. Analyses of responses to warming at varying rates of temperature change in the laboratory allow better predictions of the potential species have for colonizing disjunct shelf areas (such as the Scotia Arc). Inhabiting greater diversities of localities increases the geographic and thermal range species experience. We suggest a strong link between short-term temperature tolerance, environmental range and prospects for surviving changing environments. [source] Reflections on International Organisations and International Legitimacy: Constraints, Pathologies, and PossibilitiesINTERNATIONAL SOCIAL SCIENCE JOURNAL, Issue 170 2001Jean-Marc Coicaud It may appear questionable at first sight to connect international legitimacy and international organisations. However a strong link exists between them. International organisations are the expression, defence, promotion, and projection of a socialised vision of international relations that is key to the claims and gradual implementation of a sense of international legitimacy. As a result, one way to reflect upon global governance , its present situation and what its future is likely to be , is to analyse how international organisations express and contribute to the making of international legitimacy. The paper touches upon three main points. First, it assesses the current legitimacy of international organisations. Second, the paper will examine the contribution of international organisations to international socialisation, which is another word for international or global governance. Thirdly, it attempts to foresee and map some of the key issues around which the future of the international system, international organisations and global governance and the future of their legitimacy will probably revolve. [source] Support for teenage mothers: a qualitative study into the views of women about the support they received as teenage mothersJOURNAL OF ADVANCED NURSING, Issue 1 2001Ank De Jonge MSc HBOV RM RGNArticle first published online: 7 JUL 200 Support for teenage mothers: a qualitative study into the views of women about the support they received as teenage mothers Aim of the study.,To gain insight into the support teenage mothers received during pregnancy, birth and their child's pre-school years and young women's perceptions of the usefulness of a support group for teenage mothers. Background.,Most qualitative studies have focused on teenage mothers around the time of the birth of their first child. For this study, women were recruited several years after the birth (median 8·5 years), so that they would have had time to reflect on the support they had received. Design.,The qualitative method of semi-structured interviews was chosen to obtain in-depth information and to allow teenage mothers' own views to be heard. Ten individual interviews and one paired interview were undertaken. Findings.,Recruitment was difficult because taking part in research was not a priority for many of the women. The study confirmed the strong link between deprivation and teenage pregnancy found in other studies, and suggested that mental health problems in teenage mothers may be more difficult to detect. Teenage women need more information on mental health and on services available to them. The fear, expressed by some of the women in this study, of becoming different from other women in their social network should be considered by health workers when establishing intervention programmes. Conclusions.,Professional bodies of health workers should lobby government to provide a minimum standard of living and sufficient child-care to combat deprivation. Former teenage mothers should be involved in the recruitment, planning and implementation stages of research and interventions. Health professionals should be aware that mental health problems in teenage mothers may be particularly difficult to detect. Key community health workers or a support group may provide information on services, mental health and education facilities available that would benefit teenage mothers. A support group may also give emotional support. [source] Ab initio calculations of intramolecular parameters for a class of arylamide polymersJOURNAL OF COMPUTATIONAL CHEMISTRY, Issue 6 2006Satyavani Vemparala Abstract Using DFT methods, we have determined intramolecular parameters for an important class of arylamide polymers displaying antimicrobial and anticoagulant inhibitory properties. A strong link has been established between these functions and the conformation that the polymers adopt in solution and at lipid bilayer interfaces. Thus, it is imperative for molecular dynamics simulations designed to probe the conformational behavior of these systems to accurately describe the torsional degrees of freedom. Standard force fields were shown to be deficient in this respect. Therefore, we have computed the relevant torsional energy profiles using a series of constrained geometry optimizations. We have also determined electrostatic parameters using our results in combination with standard RESP charge optimization. Force constants for bond and angle potentials were calculated by iteratively matching quantum and classical normal modes via a Monte Carlo scheme. The resulting new set of parameters accurately described the conformation and dynamical behavior of the arylamide polymers. © 2006 Wiley Periodicals, Inc. J Comput Chem 27: 693,700, 2006 [source] Preeclampsia: Exposing Future Cardiovascular Risk in Mothers and Their ChildrenJOURNAL OF OBSTETRIC, GYNECOLOGIC & NEONATAL NURSING, Issue 1 2007Cindy M. Anderson There is an increased risk for future cardiovascular disease in women who have had preeclampsia. In infants born to mothers with preeclampsia, there is growing evidence of increased risk for both cardiovascular disease and preeclampsia. Epidemiologic and experimental data provide a strong link between intrauterine exposure to preeclampsia and subsequent risk for the development of cardiovascular disease in women. JOGNN, 36, 3-8; 2007. DOI: 10.1111/J.1552-6909.2006.00115.x [source] Entrepreneurial Access and Absorption of Knowledge Spillovers: Strategic Board and Managerial Composition for Competitive AdvantageJOURNAL OF SMALL BUSINESS MANAGEMENT, Issue 2 2006David B. Audretsch The resource theory of the firm implies that knowledge is a key resource bestowing a competitive advantage for entrepreneurial firms. However, it remains rather unclear up to now how new ventures and small businesses can access knowledge resources. The purpose of this study was to suggest two strategies, in particular, that facilitate entrepreneurial access to and absorption of external knowledge spillovers: the attraction of managers and directors with an academic background. Based on data on board composition of 295 high-technology firms, the results clearly demonstrate the strong link between geographical proximity to research-intense universities and board composition. [source] Assessing suturing techniques using a virtual reality surgical simulatorMICROSURGERY, Issue 6 2010Hamed Kazemi M.Eng. Advantages of virtual-reality simulators surgical skill assessment and training include more training time, no risk to patient, repeatable difficulty level, reliable feedback, without the resource demands, and ethical issues of animal-based training. We tested this for a key subtask and showed a strong link between skill in the simulator and in reality. Suturing performance was assessed for four groups of participants, including experienced surgeons and naive subjects, on a custom-made virtual-reality simulator. Each subject tried the experiment 30 times using five different types of needles to perform a standardized suture placement task. Traditional metrics of performance as well as new metrics enabled by our system were proposed, and the data indicate difference between trained and untrained performance. In all traditional parameters such as time, number of attempts, and motion quantity, the medical surgeons outperformed the other three groups, though differences were not significant. However, motion smoothness, penetration and exit angles, tear size areas, and orientation change were statistically significant in the trained group when compared with untrained group. This suggests that these parameters can be used in virtual microsurgery training. © 2010 Wiley-Liss, Inc. Microsurgery 30:479,486, 2010. [source] Radio imaging of the Subaru/XMM,Newton Deep Field , II.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Issue 2 2008The 37 brightest radio sources ABSTRACT We study the 37 brightest radio sources in the Subaru/XMM,Newton Deep Field. We have spectroscopic redshifts for 24 of 37 objects and photometric redshifts for the remainder, yielding a median redshift zmed for the whole sample of zmed, 1.1 and a median radio luminosity close to the ,Fanaroff,Riley type I/type II (FR I/FR II)' luminosity divide. Using mid-infrared (mid-IR) (Spitzer MIPS 24 ,m) data we expect to trace nuclear accretion activity, even if it is obscured at optical wavelengths, unless the obscuring column is extreme. Our results suggest that above the FR I/FR II radio luminosity break most of the radio sources are associated with objects that have excess mid-IR emission, only some of which are broad-line objects, although there is one clear low-accretion-rate object with an FR I radio structure. For extended steep-spectrum radio sources, the fraction of objects with mid-IR excess drops dramatically below the FR I/FR II luminosity break, although there exists at least one high-accretion-rate ,radio-quiet' QSO. We have therefore shown that the strong link between radio luminosity (or radio structure) and accretion properties, well known at z, 0.1, persists to z, 1. Investigation of mid-IR and blue excesses shows that they are correlated as predicted by a model in which, when significant accretion exists, a torus of dust absorbs ,30 per cent of the light, and the dust above and below the torus scatters ,1 per cent of the light. [source] Enthesopathies as occupational stress markers: Evidence from the upper limbAMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY, Issue 2 2010Sébastien Villotte Abstract Enthesopathies,that is, "musculo-skeletal stress markers",are frequently used to reconstruct past lifestyles and activity patterns. Relatively little attention has been paid in physical anthropology to methodological gaps implicit in this approach: almost all methods previously employed neglect current medical insights into enthesopathies and the distinction between healthy and pathological aspects has been arbitrary. This study presents a new visual method of studying fibrocartilaginous enthesopathies of the upper limb (modified from Villotte: Bull Mém Soc Anthropol Paris n.s. 18 (2006) 65,85), and application of this method to 367 males who died between the 18th and 20th centuries, from four European identified skeletal collections: the Christ Church Spitalfields Collection, the identified skeletal collection of the anthropological museum of the University of Coimbra, and the Sassari and Bologna collections of the museum of Anthropology, University of Bologna. The analysis, using generalized estimating equations to model repeated binary outcome variables, has established a strong link between enthesopathies and physical activity: men with occupations involving heavy manual tasks have significantly (P -value < 0.001) more lesions of the upper limbs than nonmanual and light manual workers. Probability of the presence of an enthesopathy also increases with age and is higher for the right side compared with the left. Our study failed to distinguish significant differences between the collections when adjusted for the other effects. It appears that enthesopathies can be used to reconstruct past lifestyles of populations if physical anthropologists: 1) pay attention to the choice of entheses in their studies and 2) use appropriate methods. Am J Phys Anthropol, 2010. © 2009 Wiley-Liss, Inc. [source] Simultaneous flux and current measurement from single plant protoplasts reveals a strong link between K+ fluxes and current, but no link between Ca2+ fluxes and currentTHE PLANT JOURNAL, Issue 1 2006Matthew Gilliham Summary We present a thorough calibration and verification of a combined non-invasive self-referencing microelectrode-based ion-flux measurement and whole-cell patch clamp system as a novel and powerful tool for the study of ion transport. The system is shown to be capable of revealing the movement of multiple ions across the plasma membrane of a single protoplast at multiple voltages and in complex physiologically relevant solutions. Wheat root protoplasts are patch clamped in the whole-cell configuration and current,voltage relations obtained whilst monitoring net K+ and Ca2+ flux adjacent to the membrane with ion-selective electrodes. At each voltage, net ion flux (nmol m,2 sec,1) is converted to an equivalent current density (mA m,2) taking into account geometry and electrode efficiency, and compared with the net current density measured with the patch clamp system. Using this technique, it is demonstrated that the K+ -permeable outwardly rectifying conductance (KORC) is responsible for net outward K+ movement across the plasma membrane [1:1 flux-to-current ratio (1.21 ± 0.14 SEM, n = 15)]. Variation in the K+ flux-to-current ratio among single protoplasts suggests a heterogeneous distribution of KORC channels on the membrane surface. As a demonstration of the power of the technique we show that despite a significant Ca2+ permeability being associated with KORC (analysis of tail current reversal potentials), there is no correlation between Ca2+ flux and KORC activity. A very significant observation is that large Ca2+ fluxes are electrically silent and probably tightly coupled to compensatory charge movements. This analysis demonstrates that it is mandatory to measure flux and currents simultaneously to investigate properly Ca2+ transport mechanisms and selectivity of ion channels in general. [source] Benefits and challenges of supervising occupational therapy fieldwork students: Supervisors' perspectivesAUSTRALIAN OCCUPATIONAL THERAPY JOURNAL, Issue 2007Yvonne Thomas Background/aim:,Increased enrolments in occupational therapy education programs, together with changes in the employment patterns of practising occupational therapists, have resulted in a crisis in fieldwork education in Australia. This study aimed to investigate fieldwork supervisors' perspectives regarding the benefits and challenges of providing fieldwork placements, explore the potential link between providing student placements and later workforce recruitment, and document currently employed models of fieldwork supervision. Methods:,Participants included past, present and potential future fieldwork supervisors, sourced from fieldwork coordinators' databases at The University of Queensland and James Cook University. Using an online, purpose-designed questionnaire, descriptive data (frequencies and percentages) were gathered from forced-choice questions. For open-ended questions, content analysis was conducted to identify categories and themes. Results:,One hundred and thirty-two surveys were completed. Benefits of fieldwork placements related to opportunities for later recruitment of fieldwork students, students conducting projects and developing resources, a sense of contributing to the occupational therapy profession, and the development of employee skills. Challenges related to staffing issues, lack of physical resources and prohibitive workload pressures. Multiple models of supervision were employed in supervisors' workplaces, and almost all participants responsible for workplace employment had employed fieldwork students they had previously supervised. Conclusions:The results demonstrate a strong link between supervision and later recruitment of fieldwork students, suggesting that supervision of students is of considerable advantage to the host organisations in the recruitment of appropriately prepared employees. The study also demonstrates additional benefits to be promoted to supervisors and organisations to encourage and support fieldwork placements. [source] Coincidence, coevolution, or causation?BIOLOGICAL REVIEWS, Issue 1 2001DNA content, cellsize, the C-value enigma ABSTRACT Variation in DNA content has been largely ignored as a factor in evolution, particularly following the advent of sequence-based approaches to genomic analysis. The significant genome size diversity among organisms (more than 200000-fold among eukaryotes) bears no relationship to organismal complexity and both the origins and reasons for the clearly non-random distribution of this variation remain unclear. Several theories have been proposed to explain this ,C-value enigma' (heretofore known as the ,C-value paradox'), each of which can be described as either a ,mutation pressure' or ,optimal DNA' theory. Mutation pressure theories consider the large portion of non-coding DNA in eukaryotic genomes as either ,junk' or ,selfish' DNA and are important primarily in considerations of the origin of secondary DNA. Optimal DNA theories differ from mutation pressure theories by emphasizing the strong link between DNA content and cell and nuclear volumes. While mutation pressure theories generally explain this association with cell size as coincidental, the nucleoskeletal theory proposes a coevolutionary interaction between nuclear and cell volume, with DNA content adjusted adaptively following shifts in cell size. Each of these approaches to the C-value enigma is problematic for a variety of reasons and the preponderance of the available evidence instead favours the nucleotypic theory which postulates a causal link between bulk DNA amount and cell volume. Under this view, variation in DNA content is under direct selection via its impacts on cellular and organismal parameters. Until now, no satisfactory mechanism has been presented to explain this nucleotypic effect. However, recent advances in the study of cell cycle regulation suggest a possible ,gene-nucleus interaction model' which may account for it. The present article provides a detailed review of the debate surrounding the C-value enigma, the various theories proposed to explain it, and the evidence in favour of a causal connection between DNA content and cell size. In addition, a new model of nucleotypic influence is developed, along with suggestions for further empirical investigation. Finally, some evolutionary implications of genome size diversity are considered, and a broadening of the traditional ,biological hierarchy' is recommended. [source] Paved with good intentions: the Hampstead and Clapton schools, 1873,1878BRITISH JOURNAL OF LEARNING DISABILITIES, Issue 2 2000David S. Stewart Summary In terms of the history of education, most people think that 1870 saw the beginning of universal elementary education in the UK, yet few consider what provision was made for those with learning disabilities. The present paper seeks to throw light on the provision made by one authority in London, the Metropolitan Asylums Board. Prior to the establishment of the schools at Darenth in 1878, later known as Darenth Park, the Board established a school in Hampstead, and later, at Clapton for pauper children with learning disabilities. Equipped with classrooms and teachers, these were the first such schools to be funded by rates, as opposed to charitable giving. The present study will reveal that there was, in fact, a strong link with the School Board for London and that certain individuals, frustrated by constraints put on them by one authority, used their considerable skills to make provision through other routes. It was not until the 1970 Education Act that all children became entitled to education in the UK, but the example of the Hampstead and Clapton Schools reveal that attempts were being made 100 years earlier to provide rate-funded education for children with learning disabilities. It might be regarded as a tragedy that philosophies in the intervening years did not reflect the optimism which policy makers in London held in the 1870s [source] Precursors and correlates of criminal behaviour in womenCRIMINAL BEHAVIOUR AND MENTAL HEALTH, Issue 2 2004Dr Julie Messer Background The precursors and correlates of criminal behaviour in women were examined in this longitudinal study of women in their late thirties. Methods The sample consisted of a high-risk group of women (n = 86) and a comparison group ( n = 97): the former had been raised in institutional care. Questionnaire measures of childhood behaviour problems and detailed interview data from two time points in adulthood were obtained, along with official records of offending. Results In terms of childhood precursors, antisocial behaviour, institutional rearing, hyperactivity and adolescent conduct disorder were found to be significantly related to offending. Later adolescent factors were also found to be important: mixing with deviant peers and leaving school without any qualifications or plans for work. Correlates of offending in adulthood included difficulties in mental health, drug use, marriage and parenting. Further analysis was undertaken to clarify the associations by using ex-care status and conduct disorder as covariates. Discussion Well-established predictors of offending in male samples seem quite as important for women and girls. The findings also suggested strong links between offending and problems in parenting. Copyright © 2004 Whurr Publishers Ltd. [source] The ecology of restoration: historical links, emerging issues and unexplored realmsECOLOGY LETTERS, Issue 6 2005T. P. Young Abstract Restoration ecology is a young academic field, but one with enough history to judge it against past and current expectations of the science's potential. The practice of ecological restoration has been identified as providing ideal experimental settings for tests of ecological theory; restoration was to be the ,acid test' of our ecological understanding. Over the past decade, restoration science has gained a strong academic foothold, addressing problems faced by restoration practitioners, bringing new focus to existing ecological theory and fostering a handful of novel ecological ideas. In particular, recent advances in plant community ecology have been strongly linked with issues in ecological restoration. Evolving models of succession, assembly and state-transition are at the heart of both community ecology and ecological restoration. Recent research on seed and recruitment limitation, soil processes, and diversity,function relationships also share strong links to restoration. Further opportunities may lie ahead in the ecology of plant ontogeny, and on the effects of contingency, such as year effects and priority effects. Ecology may inform current restoration practice, but there is considerable room for greater integration between academic scientists and restoration practitioners. [source] Berliner Geowissenschaftlerinnen an der Friedrich-Wilhelms-Universität von 1906 bis 1945, eine FallstudieFOSSIL RECORD-MITTEILUNGEN AUS DEM MUSEUM FUER NATURKUNDE, Issue 1 2003Barbara A. R. Mohr Abstract In dieser Untersuchung werden beispielhaft die Lebenswege und Karrieren von Berliner Geowissenschaftlerinnen im Zeitraum von 1906 bis 1945 nachgezeichnet und analysiert. Ähnlich wie an anderen deutschen bzw. westlichen Universitäten, aber im Gegensatz zu Russland, begann die Tätigkeit von Frauen in den Geowissenschaften spät, und das Fach wurde auch relativ selten gewählt, hauptsächlich wegen der zu geringen Berufschancen. Aber die besondere Situation in Berlin mit mehreren sich ergänzenden Institutionen und dem daraus resultierenden breiten Spektrum an geowissenschaftlichen Disziplinen, sowie ausgezeichneten Professoren, ließ dennoch Raum für eine Ausbildung in diesem Bereich und erlaubte, wenn auch in bescheidenem Maße, eine gewisse Karrieremöglichkeit. Während der hier untersuchten 40 Jahre haben weniger als 20 Frauen in den Geowissenschaften und benachbarten Gebieten promoviert. Mehrere dieser Frauen blieben in dem von ihnen gewählten Fach weiterhin aktiv und wurden erfolgreich. Zwei Frauen gelang eine akademische Karriere , eine als Universitätsprofessorin, die auch Schülerinnen hatte. Andere arbeiteten an staatlichen Institutionen, wie z. B. dem Geologischen Landesamt. Wenige Frauen blieben nach ihrer Verheiratung beruflich aktiv, wenn auch nicht offiziell angestellt, sondern als Ehefrauen. Andere arbeiteten als "Ersatz" für die im Kriege stehenden Männer. Einige waren aus persönlichen und politischen Gründen, insbesondere während der NS-Zeit, gezwungen, die Geowissenschaften zu verlassen, konnten aber teilweise auf anderen Gebieten erfolgreich arbeiten. This paper documents the lives and careers of women geoscientists at the Berlin Friedrich-Wilhelms-University from 1906 through 1945. Traditionally, in Germany, women had difficulties to be accepted in geosciences (except for geography/geology teachers), because of strong links between geology and mining, a field dominated clearly by men. In western European countries, as well as in the U.S.A. and Australia, the situation was similar in that women started late and in small numbers to study geology. This was, however, in contrast to Russia and later the Soviet Union where women were relatively early accepted even as university teachers. The data for this paper were gathered from Berlin University institutions, such as the historical archive and the library of the Palaeontological Institute, and in addition personal contacts were used. Women who had studied either geography, geology/palaeontology, geophysics, mineralogy or botany/palaeobotany are subject of this study. Only those are considered who had strong affiliations to geosciences proper, in all 17 women. During the first half of the 20th century the Berlin Friedrich-Wilhelms-University, founded in 1810, was one of the most important institutions concerning higher education in Germany, especially for women. The official opening of this university for women students was in 1908, somewhat later than at other German universities. Once admitted, however, the number of dissertations completed by women was relatively high, and, 30% of all habilitations (advanced degree which allows teaching at universities) in Germany and 50% of all habilitations in the natural sciences were accomplished at Berlin between 1918/19 to 1932. The geosciences were, together with medicine, chemistry, physics, botany and zoology, very strong scientifical and in teaching. Geoscientists of international reputation worked at large institutions, affiliated or being part of the University, such as the Prussian (later German) Geological Survey, the Institute of Geology and Palaeontology at the Museum of Natural History or the Institute and Museum of Oceanography, and were the advisers and reviewers of women Diploma and PhD students. [source] Life history correlates of oxidative damage in a free-living mammal populationFUNCTIONAL ECOLOGY, Issue 4 2009Daniel H. Nussey Summary 1Reactive oxygen species, produced as a by-product of normal metabolism, can cause intracellular damage and negatively impact on cell function. Such oxidative damage has been proposed as an evolutionarily important cost of growth and reproduction and as a mechanistic explanation for organismal senescence, although few tests of these ideas have occurred outside the laboratory. 2Here, we examined correlations between a measure of phospholipid oxidative damage in plasma samples and age, growth rates, parasite burden and investment in reproduction in a population of wild Soay sheep on St. Kilda, Scotland. 3We found that, amongst females of different ages, lambs had significantly elevated levels of oxidative damage compared to all other age classes and there was no evidence of increasing damage with age amongst adult sheep. 4Amongst lambs, levels of oxidative damage increased significantly with increasing growth rates over the first 4 months of life. Neither mean damage nor the effect of growth rate on damage differed between male and female lambs. 5Amongst adult female sheep, there was no evidence that body mass, current parasite burden or metrics of recent and past reproductive effort significantly predicted oxidative damage levels. 6This study is the first to examine age variation in an assay of oxidative damage and correlations between oxidative damage, growth and reproduction in a wild mammal. Our results suggest strong links between early conditions and oxidative damage in lambs, but also serve to highlight the limitations of cross-sectional data for studies examining associations between oxidative stress, ageing and life history in free-living populations. [source] Evaluation of soil saturation, soil chemistry, and early spring soil and air temperatures as risk factors in yellow-cedar declineGLOBAL CHANGE BIOLOGY, Issue 3 2006D. V. D'AMORE Abstract Yellow-cedar (Callitropsis nootkatensis (D. Don) Oerst.) is a valuable tree species that is experiencing a widespread decline and mortality in southeast Alaska. This study evaluated the relative importance of several potential risk factors associated with yellow-cedar decline: soil saturation, soil aluminum (Al) toxicity or calcium (Ca) deficiency, and air and soil temperature. Data were collected from permanent vegetation plots established in two low-elevation coastal forests exhibiting broad ranges of cedar mortality. Measurements of each risk factor were contrasted among classified forest zones to indicate if there were strong links with decline. Hydrology alone is weakly associated with yellow-cedar decline, but could have a predisposing role in the decline by creating exposed conditions because of reduced forest productivity. Yellow-cedar decline is not strongly associated with soil pH and extractable Al and Ca, but there appears to be Ca enrichment of surface soils by feedback from dead yellow-cedar foliage. Air and soil temperature factors are strongly associated with decline. Based on these results, an hypothesis is presented to explain the mechanism of tree injury where exposure-driven tree mortality is initiated in gaps created by soil saturation and then expands in gaps created by the tree-mortality itself. The exposure allows soils to warm in early spring causing premature dehardening in yellow-cedar trees and subsequent freezing injury during cold events. Yellow-cedars growing in the protection of shade or snow are not preconditioned by this warming, and thus not as susceptible to cold injury. Yellow-cedar decline appears to be associated with regional climate changes, but whether the cause of these changes is related to natural or human-induced climate shifts remains uncertain. Management implications, the possible role of climate, and recommended research are discussed. [source] Churches that enhance spirituality and wellbeing,INTERNATIONAL JOURNAL OF APPLIED PSYCHOANALYTIC STUDIES, Issue 2 2010Robert B. Ellsworth Abstract From examining thousands of surveys from 174 congregations, we earlier identified 29 aspects of ministry with strong links to spiritual and emotional wellbeing and increased the number of people coming (Ellsworth & Ellsworth, International Journal of Applied Psychoanalytic Studies, 6(1), 46,60, 2009). This paper explores what happened when church leaders strengthened these aspects. In examining over 12,000 surveys from 37 congregations that surveyed twice, we discovered that 20 of the 29 aspects had a major impact on changing more lives and attracting more people. This paper identifies and discusses the 20 ministry essentials that actually helped congregations experience higher levels of emotional wellbeing, spiritual growth, and/or attracted more people. We also explore the question; can congregant's emotional wellbeing impact people in the larger community? Copyright © 2010 John Wiley & Sons, Ltd. [source] Fifty Years of Refugee Studies: From Theory to PolicyINTERNATIONAL MIGRATION REVIEW, Issue 1 2001Richard Black This article reviews the growth of the field of refugee studies, focusing on its links with, and impact on, refugee policy. The last fifty years, and especially the last two decades, have witnessed both a dramatic increase in academic work on refugees and significant institutional development in the field. It is argued that these institutions have developed strong links with policymakers, although this has often failed to translate into significant policy impacts. Areas in which future policy-orientated work might be developed are considered. [source] The Michelangelo Phenomenon and Personal Well-BeingJOURNAL OF PERSONALITY, Issue 1 2002Stephen M. Drigotas Previousresearch has demonstrated that when a close romantic partner views you and behaves toward youin a manner that is congruent with your ideal self, you experience movement toward your idealself (termed the “Michelangelo phenomenon”; Drigotas, Rusbult, Wieselquist,& Whitton, 1999). The present research represents an attempt demonstrate thephenomenon's link to personal well-being. Results of a cross-sectional study of individualsin dating relationships, with a 2-month follow-up assessing breakup, replicated previous findingsregarding relationship well-being and revealed strong links between the model and personalwell-being, even when accounting for level of relationship satisfaction. Such results providefurther evidence for the social construction of the self and personal well-being. [source] Weight control, physical activity and cancer , strong linksOBESITY REVIEWS, Issue 1 2002M. Fogelholm [source] Search and navigation in dynamic environments , from individual behaviors to population distributionsOIKOS, Issue 5 2008Thomas Mueller Animal movement receives widespread attention within ecology and behavior. However, much research is restricted within isolated sub-disciplines focusing on single phenomena such as navigation (e.g. homing behavior), search strategies (e.g. Levy flights) or theoretical considerations of optimal population dispersion (e.g. ideal free distribution). To help synthesize existing research, we outline a unifying conceptual framework that integrates individual-level behaviors and population-level spatial distributions with respect to spatio-temporal resource dynamics. We distinguish among (1) non-oriented movements based on diffusion and kinesis in response to proximate stimuli, (2) oriented movements utilizing perceptual cues of distant targets, and (3) memory mechanisms that assume prior knowledge of a target's location. Species' use of these mechanisms depends on life-history traits and resource dynamics, which together shape population-level patterns. Resources with little spatial variability should facilitate sedentary ranges, whereas resources with predictable seasonal variation in spatial distributions should generate migratory patterns. A third pattern, ,nomadism', should emerge when resource distributions are unpredictable in both space and time. We summarize recent advances in analyses of animal trajectories and outline three major components on which future studies should focus: (1) integration across alternative movement mechanisms involving links between state variables and specific mechanisms, (2) consideration of dynamics in resource landscapes or environments that include resource gradients in predictability, variability, scale, and abundance, and finally (3) quantitative methods to distinguish among population distributions. We suggest that combining techniques such as evolutionary programming and pattern oriented modeling will help to build strong links between underlying movement mechanisms and broad-scale population distributions. [source] Strategic Party Government: Party Influence in Congress, 1789,2000AMERICAN JOURNAL OF POLITICAL SCIENCE, Issue 3 2007Matthew J. Lebo Why does the influence of Congressional parties fluctuate over time? Building on prevailing answers, we develop a model, Strategic Party Government, which highlights the electoral motives of legislative parties and the strategic interaction between parties. We test this theory using the entire range of House and Senate party behavior from 1789 to 2000 and find that the strategic behavior of parties complements members' preferences as an explanation for variation in party influence. Specifically, the strongest predictors of one party's voting unity are the unity of the opposing party and the difference between the parties in the preceding year. Moreover, we find strong links between party behavior in Congress and electoral outcomes: an increase in partisan influence on legislative voting has adverse electoral costs, while winning contested votes has electoral benefits. [source] | ||||||||||||||||||||||||||||