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Complex Ways (complex + way)
Selected AbstractsDensity-dependent dispersal in birds and mammalsECOGRAPHY, Issue 3 2005Erik Matthysen Density-dependent dispersal can be caused by various mechanisms, from competition inducing individuals to emigrate (positive density-dependence) to social crowding effects impeding free movement (negative density-dependence). Various spatial population models have incorporated positively density-dependent dispersal algorithms, and recent theoretical models have explored the conditions for density-dependent dispersal (DD) to evolve. However, while the existence of DD is well documented in some taxa such as insects, there is no clear picture on its generality in vertebrates. Here I review the available empirical data on DD in birds and mammals, focusing mainly on variation in dispersal between years and on experimental density manipulations. Surprisingly few studies have explicitly focused on DD, and interpretation of the available data is often hampered by differences in approach, small sample sizes and/or statistical shortcomings. Positive DD was reported in 50 and 33% of the selected mammal and bird studies, respectively, while two studies on mammals (out of eight) reported negative DD. Among bird studies, DD was more often reported for emigration rates or long-distance recoveries than for average distances within finite study areas. Experimental studies manipulating densities (mainly on mammals) have consistently generated positive DD, typically showing reduced emigration in response to partial population removal. Studies that examined dispersal in relation to seasonal changes in density (small mammals only) have more often reported negative DD. Studies that compared dispersal between sites differing in density, also show a mixture of positive and negative DD. This suggests that dispersal changes in a more complex way with seasonal and spatial density variation than with annual densities, and/or that these results are confounded by other factors differing between seasons and sites, such as habitat quality. I conclude that both correlational and experimental studies support the existence of positive, rather than negative, density-dependent dispersal in birds and mammals. [source] The oral ecosystem: implications for educationEUROPEAN JOURNAL OF DENTAL EDUCATION, Issue 4 2006H. M. Eriksen Abstract, We propose a model that is applicable to oral health education. The model describes the oral cavity in a complexity-based ecological context. This concept includes the premise that factors from different organisational levels (biological, individual, community, society) interact in a complex way with the potential to ,stress' the ecosystem and thereby provoke changes. This mode of action complies with the understanding of the oral cavity as a complex adaptive system. An ecological model is actively used in the undergraduate problem-based curriculum at the Faculty of Odontology, Malmö University, Sweden and has recently been applied as a conceptual basis for the new dental curriculum being established at the University of Tromsø in Northern Norway. The purpose is to encourage and promote an ecological, health-oriented view and to stimulate reflections on premises for oral health and diseases in an integrated context. [source] [CO2]- and density-dependent competition between grassland speciesGLOBAL CHANGE BIOLOGY, Issue 11 2006MARK Van KLEUNEN Abstract The predicted ongoing increase of atmospheric carbon dioxide levels is considered to be one of the main threats to biodiversity due to potential changes in biotic interactions. We tested whether effects of intra- and interspecific planting density of the calcareous grassland perennials Bromus erectus and Carex flacca change in response to elevated [CO2] (600 ppm) by using factorial combinations of seven densities (0, 1, 2, 4, 8, 16, 24 tillers per 8 × 8 cm2 cell) of both species in plots with and without CO2 enrichment. Although aboveground biomass of C. flacca was increased by 54% under elevated [CO2], the combined aboveground biomass of the whole stand was not significantly increased. C. flacca tended to produce more tillers under elevated [CO2] while B. erectus produced less tillers. The positive effect of [CO2] on the number of tillers of C. flacca was strongest at high intraspecific densities. On the other hand, the negative effect of [CO2] on the number of tillers of B. erectus was not present at intermediate intraspecific planting densities. Seed production of C. flacca was more than doubled under elevated [CO2], while seed production of B. erectus was not affected. Moreover, the mass per seed of C. flacca was increased by elevated [CO2] at intermediate interspecific planting densities while the mass per seed of B. erectus was decreased by elevated [CO2] at high interspecific planting densities. Our results show that the responses of C. flacca and B. erectus to elevated [CO2] depend in a complex way on initial planting densities of both species. In other words, competition between these two model species is both [CO2]- and density dependent. On average, however, the effects of [CO2] on the individual species indicate that the composition of calcareous grasslands is likely to change under elevated [CO2] in favor of C. flacca. [source] Interdecadal Pacific Oscillation and South Pacific climateINTERNATIONAL JOURNAL OF CLIMATOLOGY, Issue 14 2001M.J. Salinger Abstract The Interdecadal Pacific Oscillation (IPO) has been shown to be associated with decadal climate variability over parts of the Pacific Basin, and to modulate interannual El Niño,Southern Oscillation (ENSO)-related climate variability over Australia. Three phases of the IPO have been identified during the 20th century: a positive phase (1922,1944), a negative phase (1946,1977) and another positive phase (1978,1998). Climate data are analysed for the two most recent periods to describe the influence of the IPO on decadal climate trends and interannual modulation of ENSO teleconnections throughout the South West Pacific region (from the equator to 55°S, and 150°E to 140°W). Data coverage was insufficient to include the earliest period in the analysis. Mean sea level pressure (SLP) in the region west of 170°W increased for the most recent positive IPO period, compared with the previous negative phase. SLP decreased to the east of 170°W, with generally more southerly quarter geostrophic flow over the region. Annual surface temperature increased significantly southwest of the South Pacific Convergence Zone (SPCZ) at a rate similar to the average Southern Hemisphere warming. Northwest of the SPCZ temperature increases were less, and northeast of the SPCZ more than the hemispheric warming in surface temperature. Increases of annual precipitation of 30% or more occurred northeast of the SPCZ, with smaller decreases to the southwest, associated with a movement in the mean location of the SPCZ northeastwards. The IPO modulates teleconnections with ENSO in a complex way, strengthening relationships in some areas and weakening them in others. For New Zealand, there is a consistent bias towards stronger teleconnections for the positive IPO period. These results demonstrate that the IPO is a significant source of climate variation on decadal time scales throughout the South West Pacific region, on a background which includes global mean surface temperature increases. The IPO also modulates interannual ENSO climate variability over the region. Copyright © 2001 Royal Meteorological Society [source] Modelling the establishment and spread of autotetraploid plants in a spatially heterogeneous environmentJOURNAL OF EVOLUTIONARY BIOLOGY, Issue 3 2004B.-H. Li Abstract The establishment and spread of autotetraploids from an original diploid population in a heterogeneous environment were studied using a stochastic simulation model. Specifically, we investigated the effects of heterogeneous habitats and nonrandom pollen/seed dispersal on the critical value (,) of unreduced 2n gamete production necessary for the establishment of autotetraploids as predicted by deterministic models. Introduction of a heterogeneous environment with random pollen/seed dispersal had little effect on the , value. In contrast, incorporating nonrandom pollen/seed dispersal into a homogeneous environment considerably reduced the , value. Incorporating both heterogeneous habitats and nonrandom pollen/seed dispersal may lead either to an increase or to a decrease in the , value compared to that with random dispersal, indicating that the two factors interact in a complex way. [source] Religious Identity as an Historical Narrative: Coptic Orthodox Immigrant Churches and the Representation of HistoryJOURNAL OF HISTORICAL SOCIOLOGY, Issue 2 2006GHADA BOTROS This paper looks at how the Coptic Church narrates this history particularly as it transcends the national boundaries of Egypt to serve migrant Copts in Western societies. The historical narrative of the Coptic Church celebrates its contributions to early Christianity; defends its stance in the Chalcedon Council in 451 CE; and celebrates a legacy of triumph and survival after the Arab conquest. Building on theories on collective memory, this paper shows how the present and the past shape one another in a very complex way. The paper is based on interviews with both lay and clerical members of Coptic immigrant communities in Canada and the United States and on textual analysis of books, bulletins and websites launched on and by the Church. [source] Mothers, Extraordinary Labor, and Amacasual: Law and Politics of Nonstandard Employment in the South African Retail SectorLAW & POLICY, Issue 3 2009BRIDGET KENNY This article examines changing social meaning embodying legal categories of nonstandard employment within South African retailing between the 1950s and the postapartheid period. Using archival and interview material, the article shows how trade unions constructed part-time and casual employment through gendered, class, and racial meanings to produce two very different legal categories. Black workers' rights claims in the 1980s developed within these changing socio-legal parameters. The image of the full-time permanent worker became political agent, and in the postapartheid period, increasing numbers of casual workers became marginalized from the union. The relationship between rights and regulation gives us a more complex way of understanding worker politics. [source] The hard X-ray spectrum of the Seyfert galaxy IRAS 18325,5926: reflection from an ionized disc and variable iron K emissionMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, Issue 2 2004K. Iwasawa ABSTRACT We report our analysis of the X-ray spectra of the Seyfert galaxy IRAS 18325,5926 (= Fairall 49) obtained from various X-ray observatories prior to XMM,Newton, including new results from two RXTE and one BeppoSAX observations. A relatively steep continuum slope (,, 2.2) in the 2,15 keV band is confirmed. The continuum spectrum observed with the BeppoSAX PDS shows a possible roll-over at energies above 30 keV, indicating a Comptonizing corona cooler than in other Seyfert nuclei. The X-ray spectrum above 2 keV is best explained with a model including reflection from a highly ionized disc with significant relativistic blurring. The iron K, emission feature is then mainly due to Fe xxv. The seven recent observations show that the iron K emission flux appears to follow the continuum between the observations separated by a few months to years, although some exceptions suggest that the linestrength may be determined in a more complex way. [source] Epidemics of Tomato torrado virus, Pepino mosaic virus and Tomato chlorosis virus in tomato crops: do mixed infections contribute to torrado disease epidemiology?ANNALS OF APPLIED BIOLOGY, Issue 3 2010P. Gómez Torrado disease was first observed in protected tomato crops in the Murcia province of Spain in spring 2001, causing serious concern to regional tomato producers. The disease-causing agent was initially identified as a picorna-like bipartite plant RNA virus, now known as Tomato torrado virus (ToTV), but several additional torradoviruses inducing similar disease symptoms have been described more recently. We studied the incidence of torradoviruses between 2005 and 2008 in two parts of Murcia (Spain) where tomato crops are grown commercially. We also analysed the potential association among ToTV, Pepino mosaic virus (PepMV) and Tomato chlorosis virus (ToCV) in samples showing torrado symptoms of varying severity. ToTV was the only torradovirus found in the samples (predominantly as single infections), but double and triple infections comprising ToTV, PepMV and/or ToCV were also detected. There was no evidence of a specific association among the viruses as the frequencies of mixed infections did not deviate from those expected to occur by chance. Statistical analysis of the potential association between torrado symptoms and the type of infection (single or multiple) was inconclusive. To determine whether co-infections with ToTV and PepMV have any marked influence on the torrado disease, we analysed torrado symptom severity and virus accumulation in tomato plants experimentally infected with ToTV-CE, PepMV-Sp13 and PepMV-PS5 in single and mixed infections. The severity of the torrado symptoms was not affected by the presence of PepMV. In single infections, the ToTV titre remained very low, reaching its maximum in the early stages of infection and declining rapidly thereafter, whereas the disease symptoms became more severe over the same timescale. In mixed infections, the accumulation of both ToTV and PepMV was altered with respect to single infections, and the magnitude of this alteration appeared to be virus and strain specific. Therefore, ToTV and PepMV mixed infections may modulate the epidemiology of both viruses in a complex way by altering virus fitness. The impact of our studies on efforts to track and prevent the spread of torrado disease is discussed. [source] Measuring the Interaction Forces between Protein Inclusion Bodies and an Air Bubble Using an Atomic Force MicroscopeBIOTECHNOLOGY PROGRESS, Issue 5 2001N. D. Wangsa-Wirawan Interaction forces between protein inclusion bodies and an air bubble have been quantified using an atomic force microscope (AFM). The inclusion bodies were attached to the AFM tip by covalent bonds. Interaction forces measured in various buffer concentrations varied from 9.7 nN to 25.3 nN (± 4,11%) depending on pH. Hydrophobic forces provide a stronger contribution to overall interaction force than electrostatic double layer forces. It also appears that the ionic strength affects the interaction force in a complex way that cannot be directly predicted by DLVO theory. The effects of pH are significantly stronger for the inclusion body compared to the air bubble. This study provides fundamental information that will subsequently facilitate the rational design of flotation recovery system for inclusion bodies. It has also demonstrated the potential of AFM to facilitate the design of such processes from a practical viewpoint. [source] Visualizing massively multithreaded applications with ThreadScopeCONCURRENCY AND COMPUTATION: PRACTICE & EXPERIENCE, Issue 1 2010Kyle B. Wheeler Abstract As highly parallel multicore machines become commonplace, programs must exhibit more concurrency to exploit the available hardware. Many multithreaded programming models already encourage programmers to create hundreds or thousands of short-lived threads that interact in complex ways. Programmers need to be able to analyze, tune, and troubleshoot these large-scale multithreaded programs. To address this problem, we present ThreadScope: a tool for tracing, visualizing, and analyzing massively multithreaded programs. ThreadScope extracts the machine-independent program structure from execution trace data from a variety of tracing tools and displays it as a graph of dependent execution blocks and memory objects, enabling identification of synchronization and structural problems, even if they did not occur in the traced run. It also uses graph-based analysis to identify potential problems. We demonstrate the use of ThreadScope to view program structure, memory access patterns, and synchronization problems in three programming environments and seven applications. Copyright © 2009 John Wiley & Sons, Ltd. [source] Managing Uncertainty in Creative Industries: Lessons from Jerry Springer the OperaCREATIVITY AND INNOVATION MANAGEMENT, Issue 3 2006Anna M. Dempster This article considers the impact of uncertainty on entrepreneurial performance in the UK theatre industry. The article identifies and evaluates the major determinants of demand uncertainty ,audience composition, critical acclaim and media coverage, whose management is key to entrepreneurial success. An in-depth historical case study of the controversial production, Jerry Springer the Opera, analyses the evolution of these three distinct sources of uncertainty and illustrates that they should not be treated in isolation since they interact in complex ways which change with time. The case study shows how the entrepreneurs involved used a multi-staged production process as a strategy to market test their product and to distribute their risks across agents and over time. The article therefore considers what contributed to both the successes and failures of these entrepreneurs as well as highlighting important strategic lessons for managing uncertainty in creative industries. [source] Invasiveness in plant communities with feedbacksECOLOGY LETTERS, Issue 4 2007Margaret J. Eppstein Abstract The detrimental effects of invasive plant species on ecosystems are well documented. While much research has focused on discovering ecological influences associated with invasiveness, it remains unclear how these influences interact, causing some introduced exotic species to become invasive threats. Here we develop a framework that incorporates the influences of propagule pressure, frequency independent growth rates, feedback relationships, resource competition and spatial scale of interactions. Our results show that these ecological influences interact in complex ways, resulting in expected outcomes ranging from inability to establish, to naturalization, to conditional invasion dependent on quantity and spatial distribution of propagules, to unconditional takeover. We propose a way to predict the likelihood of these four possible outcomes, for a species recently introduced into a given target community. Such information could enable conservation biologists to craft strategies and target remediation efforts more efficiently and effectively in order to help maintain biodiversity in ecological communities. [source] Intellectual disability, challenging behaviour and cost in care accommodation: what are the links?HEALTH & SOCIAL CARE IN THE COMMUNITY, Issue 4 2005Martin Knapp PhD Abstract The paper examines the links between degree of intellectual disability, challenging behaviour, service utilisation and cost for a group of people with intellectual disabilities living in care accommodation in England. A cross-sectional survey was conducted of people with intellectual disabilities, identified via provider organisations, with supplementary collection of costs data. Multivariate analyses of cost variations were carried out for 930 adults with intellectual disabilities. There were strong, nonlinear, interdependent links between degree of intellectual disability, behaviour, service use and costs. Higher costs were associated with more severe intellectual disabilities and more challenging behaviour. Sector and scale of residence also influenced cost in quite complex ways. Access to and use of services by people with intellectual disabilities were not always appropriately linked to perceived or actual needs. Policy makers and local commissioning agencies need to explore the sources of cost variation between individuals, sectors and types of accommodation in order to achieve national policy objectives on quality, choice, independence and inclusion. [source] Gonadal hormone modulation of hippocampal neurogenesis in the adultHIPPOCAMPUS, Issue 3 2006Liisa A.M. Galea Abstract Gonadal hormones modulate neurogenesis in the dentate gyrus (DG) of adult rodents in complex ways. Estradiol, the most potent estrogen, initially enhances and subsequently suppresses cell proliferation in the dentate gryus of adult female rodents. Much less is known about how estradiol modulates neurogenesis in the adult male rodent; however, recent evidence suggests that estradiol may have a moderate effect on cell proliferation but enhances cell survival in the DG of newly synthesized cells but only when estradiol is administered during a specific stage in the cell maturation cycle in the adult male rodent. Testosterone likely plays a role in adult neurogenesis, although there have been no direct studies to address this. However, pilot studies from our laboratory suggest that testosterone up-regulates cell survival but not cell proliferation in the DG of adult male rats. Progesterone appears to attenuate the estradiol-induced enhancement of cell proliferation. Neurosteroids such as allopregnalone decrease neurogenesis in adult rodents, while pregnancy and motherhood differentially regulate adult neurogenesis in the adult female rodent. Very few studies have investigated the effects of gonadal hormones on male rodents; however, studies have indicated that there is a gender difference in the response to hormone-regulated hippocampal neurogenesis in the adult. Clearly, more work needs to be done to elucidate the effects of gonadal hormones on neurogenesis in the DG of both male and female rodents. © 2006 Wiley-Liss Inc. [source] Generalizability in Communication ResearchHUMAN COMMUNICATION RESEARCH, Issue 4 2002Michael A. Shapiro In communication research, attempts to enhance external validity usually focus on techniques to enhance the surface representativeness attained in a particular study. Such surface representativeness is a useful tool. However, a larger ability to generalize emerges from a constantly evolving scientific discourse across multiple studies about how social meanings and social behaviors impact outcomes. The resulting conceptual knowledge enables us to generalize about communication across a much wider range of persons, settings, times, and messages than does surface similarity. The findings of a study should be examined in light of its contribution to theory. The surface representativeness of a study is usually not a good indicator of contribution to theory. The discipline of communication, particularly journal editors and reviewers, bears a heavy responsibility to think about generalizability in the complex ways the topic requires. [source] The influence of elevation error on the morphometrics of channel networks extracted from DEMs and the implications for hydrological modellingHYDROLOGICAL PROCESSES, Issue 11 2008John B. Lindsay Abstract Stream network morphometrics have been used frequently in environmental applications and are embedded in several hydrological models. This is because channel network geometry partly controls the runoff response of a basin. Network indices are often measured from channels that are mapped from digital elevation models (DEMs) using automated procedures. Simulations were used in this paper to study the influence of elevation error on the reliability of estimates of several common morphometrics, including stream order, the bifurcation, length, area and slope ratios, stream magnitude, network diameter, the flood magnitude and timing parameters of the geomorphological instantaneous unit hydrograph (GIUH) and the network width function. DEMs of three UK basins, ranging from high to low relief, were used for the analyses. The findings showed that moderate elevation error (RMSE of 1·8 m) can result in significant uncertainty in DEM-mapped network morphometrics and that this uncertainty can be expressed in complex ways. For example, estimates of the bifurcation, length and area ratios and the flood magnitude and timing parameters of the GIUH each displayed multimodal frequency distributions, i.e. two or more estimated values were highly likely. Furthermore, these preferential estimates were wide ranging relative to the ranges typically observed for these indices. The wide-ranging estimates of the two GIUH parameters represented significant uncertainty in the shape of the unit hydrograph. Stream magnitude, network diameter and the network width function were found to be highly sensitive to elevation error because of the difficulty in mapping low-magnitude links. Uncertainties in the width function were found to increase with distance from outlet, implying that hydrological models that use network width contain greater uncertainty in the shape of the falling limb of the hydrograph. In light of these findings, care should be exercised when interpreting the results of analyses based on DEM-mapped stream networks. Copyright © 2007 John Wiley & Sons, Ltd. [source] Can a purchaser be a partner? nursing education in the English universitiesINTERNATIONAL JOURNAL OF HEALTH PLANNING AND MANAGEMENT, Issue 2 2001E. Meerabeau Abstract Since the early 1990s, public sector management in England has been exhorted to follow the example of the private sector, and ,quasi-markets' have been established, for example in the health service. A quasi-market also exists between the NHS and higher education for the purchasing (or procurement) of nursing education. This paper uses policy documents such as the National Health Service Executive Circular (March 1999) on ,Good Contracting Guidelines' for Non-Medical Education and Training, plus other relevant literature on the commodification of higher education, quasi-markets and contract theory to examine this market, and the confusion of two rhetorics, those of competition and partnership. Nursing occupies a marginal place in higher education in England, having only recently become part of it. The emphasis of the quasi-market on the output of a trained ,fit for purpose' labour force combines with professional attempts to create an academic discipline, in complex ways which are as yet underanalysed. Copyright © 2001 John Wiley & Sons, Ltd. [source] The Role of Trust in Channels of Strategic Communication for Building Civil SocietyJOURNAL OF COMMUNICATION, Issue 4 2005Carl H. Botan In these turbulent times, development communication is a growing and important area of both academic research and practice. This article explores the role of strategic communication channels in the development of civil society in Bosnia. This case study reports the results of a survey that asked Bosnians about their levels of trust in government officials, alternative media, and state-controlled media outlets. The findings suggest that shortly after the war Bosnians had medium levels of trust in their communication channels, and when it comes to obtaining important information, it appears that alternative media were considered more trustworthy than either the state media or local government officials. Finally, political affiliation and ethnicity affect trust in communication channels in complex ways. [source] Third-Person Effects and the Environment: Social Distance, Social Desirability, and Presumed BehaviorJOURNAL OF COMMUNICATION, Issue 2 2005Jakob D. Jensen Previous research has documented third-person effects (persons presuming that others will be more susceptible to media effects than they themselves are) and explored moderators such as social desirability (the effect reverses when the media effects are undesirable) and social distance (the effect increases as the social distance from the self increases). In a study of environmental news coverage, the authors observed the general third-person effect and the moderating role of social desirability; however, they also found that social distance affected presumed influence in complex ways reflecting varying perceptions of issue relevance for the comparison groups. A new variable, presumed behavior (the presumed effect of media coverage on others' behavior), was found to be independent of presumed influence and to offer improved prediction of perceivers' behavioral intentions. [source] Gender and Turn Allocation in a Thai Chat RoomJOURNAL OF COMPUTER-MEDIATED COMMUNICATION, Issue 1 2003Siriporn Panyametheekul This paper analyzes gender in relation to turn allocation in a popular Thai chat room on the World Wide Web. We analyze turn-taking and response patterns in light of Sacks, Schegloff and Jefferson's (1974) model of turn allocation in face-to-face conversation, taking into consideration the independent variable of participant gender. We also analyze use of, and responses to, flirtation in the chat room. Our results show that females participate more often and receive a higher rate of response from both females and males. Males, who are in the minority, must work harder to take the floor, even in their attempted flirtatious interactions. These results suggest that gender interacts with culture online in complex ways: Contrary to previous findings on gender in chat rooms, and contrary to culturally-based expectations about the subordinate status of Thai women, females appear to be relatively empowered in the Thai chat room studied here, as assessed through turn allocation patterns. [source] Project Development in Complex Environments: Assessing Safety in Design and Decision-MakingJOURNAL OF CONTINGENCIES AND CRISIS MANAGEMENT, Issue 3 2001Joop F. M. Koppenjan How can we be sure that safety risks are adequately dealt with in the design of complex, innovative projects? In The Netherlands, a number of recent innovative project initiatives have made this a relevant question. These initiatives include projects such as the construction of tunnels using new technologies, the construction of underground facilities that combine several functions, i.e. shopping, parking and transport, and the development of a transport corridor in which rail, road and waterway have been or will be combined. These projects combine several functions and have been, or will be, realised in densely built and populated areas. Although safety regulations for products and systems have been institutionalised through legislation and professional design practices, recent project proposals link systems and their environment in new and complex ways. The risks evolving from these links are unknown and the extent to which they are covered by existing safety approaches is uncertain. In this contribution, we examine how the attention paid to safety can be increased and maintained in the design process of infrastructural projects. First, we discuss the need to reorganise the safety focus in the design process. Then we describe the role of the design process in decision-making for major projects with regard to utility building, town planning and the construction of infrastructures. Third, we elaborate how the focus on safety can be organised within this context, given developments in the field of interactive decision-making and the design and management of interaction processes. We then outline a safety risk management method that can be used to achieve this and, finally, address the conditions that influence the use of this method. [source] Joseph Jastrow, the psychology of deception, and the racial economy of observationJOURNAL OF THE HISTORY OF THE BEHAVIORAL SCIENCES, Issue 2 2007Michael Pettit This article reconstructs the recurring themes in the career of Joseph Jastrow, both inside and outside the laboratory. His psychology of deception provides the bridge between his experimental and popular pursuits. Furthermore, Jastrow's career illustrates the complex ways in which scientific psychology and pragmatist philosophy operated within the constraints of a moral economy deeply marked by notions of "race." Psychological investigations of deception were grafted onto two of the human sciences' leading tools: the evolutionary narrative and the statistical analysis of populations. Such associations abetted the racialization of the acts of deceiving and being deceived. These connections also were used to craft moral lessons about how individuals ought to behave in relationship to the aggregate population and natural selection's endowment. © 2007 Wiley Periodicals, Inc. [source] Quantitative genetics parameters show partial independent evolutionary potential for body mass and metabolism in stonechats from different populationsJOURNAL OF ZOOLOGY, Issue 2 2009B. I. Tieleman Abstract Phenotypic variation in physiological traits, such as energy metabolism, is commonly subjected to adaptive interpretations, but little is known about the heritable basis or genetic correlations among physiological traits in non-domesticated species. Basal metabolic rate (BMR) and body mass are related in complex ways. We studied the quantitative genetics of BMR, residual BMR (on body mass), mass-specific BMR and body mass of stonechats originating from four different populations and bred in captivity. Heritabilities ranged from 0.2 to 0.7. The genetic variance,covariance structure implied that BMR, mass-specific BMR and body mass can in part evolve independently of each other, because we found genetic correlations deviating significantly from one and minus one. BMR, mass-specific BMR and body mass further differed among populations at the phenotypic level; differences in the genetic correlation among populations are discussed. [source] Remaking the Anglophilic city: Visual spectacles in suburbiaNEW ZEALAND GEOGRAPHER, Issue 1 2009Julie Cupples Abstract:,, In the late 1990s, the residents of the Christchurch suburb of Halswell began to extensively engage in the practice of adorning their homes with Christmas lights. While the lights attract many visitors from other parts of the city, many Christchurch people are highly critical of them on grounds of taste. An exploration of the diverse attitudes toward this cultural practice demonstrates the complex ways in which local urban identities are articulated. While the Christmas lights reproduce processes of suburban social conformity and normativity, they also constitute a more postmodern site in which the established heritage meanings of Christchurch based on notions of Englishness are disrupted. [source] Gender and professional identity in psychiatric nursing practice in Alberta, Canada, 1930,75NURSING INQUIRY, Issue 4 2005Geertje Boschma This paper examines gender-specific transformations of nursing practice in institutional mental health-care in Alberta, Canada, based on archival records on two psychiatric hospitals, Alberta Hospital Ponoka and Alberta Hospital Edmonton, and on oral histories with psychiatric mental health nurses in Alberta. The paper explores class and gender as interrelated influences shaping the work and professional identity of psychiatric mental health nurses from the 1930s until the mid-1970s. Training schools for nurses in psychiatric hospitals emerged in Alberta in the 1930s under the influence of the mental hygiene movement, evolving quite differently for female nurses compared to untrained aides and male attendants. The latter group resisted their exclusion from the title ,nurse' and successfully helped to organize a separate association of psychiatric nurses in the 1950s. Post-World War II, reconstruction of health-care and a de-institutionalization policy further transformed nurses' practice in the institutions. Using social history methods of analysis, the paper demonstrates how nurses responded to their circumstances in complex ways, actively participating in the reconstruction of their practice and finding new ways of professional organization that fit the local context. After the Second World War more sophisticated therapeutic roles emerged and nurses engaged in new rehabilitative practices and group therapies, reconstructing their professional identities and transgressing gender boundaries. Nurses' own stories help us to understand the striving toward psychiatric nursing professionalism in the broader context of changing gender identities and work relationships, as well as shifting perspectives on psychiatric care. [source] The influence of bite size on foraging at larger spatial and temporal scales by mammalian herbivoresOIKOS, Issue 12 2007Lisa A. Shipley Organisms respond to their heterogeneous environment in complex ways at many temporal and spatial scales. Here, I examine how the smallest scale process in foraging by mammalian herbivores, taking a bite, influences plants and herbivores over larger scales. First, because cropping bites competes with chewing them, bite size influences short-term intake rate of herbivores within plant patches. On the other hand, herbivores can chew bites while searching for new ones, thus influencing the time spent vigilant and intake rate as animals move among food patches. Therefore, bite size affects how much time herbivores must spend foraging each day. Because acquiring energy is necessary for fitness, herbivores recognize the importance of bite size and select bites, patches and diets based on tradeoffs between harvesting rates, digestion, and sheering forces. In turn, induced structural defenses of plants, such as thorns, allow plants to respond immediately to herbivory by reducing bite size and thus tissue loss. Over evolutionary time, herbivores have adapted mouth morphology that allows them to maximize bite size on their primary forage plant, whereas plants faced with large mammalian herbivores have adapted structures such as divarication that minimize bite size and protect themselves from herbivory. Finally, bite size available among plant communities can drive habitat segregation and migration of larger herbivores across landscapes. [source] MAKING METAL AND FORGING RELATIONS: IRONWORKING IN THE BRITISH IRON AGEOXFORD JOURNAL OF ARCHAEOLOGY, Issue 4 2007MELANIE GILES Summary. This article explores the social significance of metalworking in the British Iron Age, drawing ethnographic analogies with small-scale, pre-industrial communities. It focuses on iron, from the collection of ore to smelting and smithing, challenging the assumption that specialized ironworking was necessarily associated with hierarchical chiefdoms, supported by full-time craft specialists. Instead, it explores more complex ways in which social and political authority might have been associated with craftwork, through metaphorical associations with fertility, skill and exchange. Challenging traditional interpretations of objects such as tools and weapons, it argues that the importance of this craft lay in its dual association with transformative power, both creative and destructive. It suggests that this technology literally made new kinds of metaphorical relationships thinkable, and it explores the implications through a series of case studies ranging from the production and use of iron objects to their destruction and deposition. [source] Distribution modelling to guide stream fish conservation: an example using the mountain sucker in the Black Hills National Forest, USAAQUATIC CONSERVATION: MARINE AND FRESHWATER ECOSYSTEMS, Issue 7 2008Daniel C. Dauwalter Abstract 1.Conservation biologists need tools that can utilize existing data to identify areas with the appropriate habitat for species of conservation concern. Regression models that predict suitable habitat from geospatial data are such a tool. Multiple logistic regression models developed from existing geospatial data were used to identify large-scale stream characteristics associated with the occurrence of mountain suckers (Catostomus platyrhynchus), a species of conservation concern, in the Black Hills National Forest, South Dakota and Wyoming, USA. 2.Stream permanence, stream slope, stream order, and elevation interacted in complex ways to influence the occurrence of mountain suckers. Mountain suckers were more likely to be present in perennial streams, and in larger, higher gradient streams at higher elevations but in smaller, lower gradient streams at lower elevations. 3.Applying the logistic regression model to all streams provided a way to identify streams in the Black Hills National Forest most likely to have mountain suckers present. These types of models and predictions can be used to prioritize areas that should be surveyed to locate additional populations, identify stream segments within catchments for population monitoring, aid managers in assessing whether proposed forest management will potentially have impacts on fish populations, and identify streams most suitable for stream rehabilitation and conservation or translocation efforts. 4.When the effect of large brown trout (Salmo trutta) was added to the best model of abiotic factors, it had a negative effect on the occurrence of mountain suckers. Negative effects of brown trout on the mountain sucker suggest that management of recreational trout fisheries needs to be balanced with mountain sucker conservation in the Black Hills. However, more spatially explicit information on brown trout abundance would allow managers to understand where the two species interact and where recreational fisheries need to be balanced with fish conservation. Copyright © 2008 John Wiley & Sons, Ltd. [source] Hurricanes and socio-economic development on Niue IslandASIA PACIFIC VIEWPOINT, Issue 2 2000Judith C. Barker This case study investigates the complex ways that recurrent ecological damage affected the course of socio-economic development on Niue Island, a Pacific micro-state. In tracing the historical record of droughts and hurricanes from 1900 to 1990, it is clear that severely inclement weather repeatedly destroyed agricultural development endeavours on the island leading to stagnation in this economic sector. In the aftermath of such disasters there were additional widespread social, political, and economic responses resulting in insidious but inexorable change. These responses , metaphoric ,winds of change', constituted, bolstered and sustained the transition to a MIRAB economy. [source] | |||||||||||||||||||||||||