230 research outputs found

    Militarist, Marxian, and Non-Marxian Materialist Theories of Gender Inequality: A Cross-Cultural Test*

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    Abstract This study tested three types of theories of gender inequality in preindustrial societies by using half the societies in the Standard Cross-Cultural Sample: militarist, Marxian, and non-Marxian materialist theories. The first phase of the research used simple cross-tabulations with chi-square as a test of significance and gamma as a measure of association. The results from this phase showed no support for militarist theories, some support for Marxian theories, and substantial support for non-Marxian materialist theories. Since the first phase involved no control variables, a second phase was conducted using multivariate analyses. These analyses confirmed that militarist theories must be emphatically rejected, and that both Marxian and non-Marxian materialist variables help determine gender inequality. Non-Marxian materialist variables, however, explain much more of the variance in gender inequality than Marxian variables do. Gender inequality has been a pervasive feature of human social life for millennia. There is widespread, although hardly universal, agreement that all societies have been to some extent male-dominated * An earlier version of this article was presented at the annual meetings of the American Sociological Association, Atlanta, August 2003. Direct correspondence to Stephen Sanderson, Department of Sociology, Indiana University of / Social Forces 83:4, June 2005 explain only the variable aspects. In doing so it tests three competing theories: militarist, Marxian, and non-Marxian materialist theories. Militarist theories The first of several Marxian theories was proposed by Engels ([1884] 1970). Engels argued that in the earliest forms of human society women were equal with men. With the rise of social stratification and the state in social evolution, men gained control over private property and this came to be extended to control over women; as a result, women's status plummeted. Karen According to non-Marxian materialist theories, ecological, technological, and economic factors are the most important determinants of women's status. The greater the extent to which women are involved in economic production, the higher their status tends to be Testing Three Theories of Gender Inequality / 1427 Hypotheses and Methods hy potheses We formulate three hypotheses that correspond to the three theoretical perspectives. Hypothesis 1 is derived from militarist theories: Hypothesis 1: The greater the prevalence of warfare, the lower the status of women. Hypothesis 2 is derived from Marxian theories: Hypothesis 2a: The greater the control women have over the products of their own labor, the higher their status. Hypothesis 2b: The greater the degree of stratification, the lower the status of women. Hypothesis 3 is derived from non-Marxian materialist theories: Hypothesis 3a: The greater the contribution of gathering to the total food supply, the higher the status of women. Hypothesis 3b: The greater the contribution of women to overall subsistence, the higher their status. Hypothesis 3c: In agricultural societies, the greater the contribution of women to agricultural labor, the higher their status. Hypothesis 3d: In agricultural societies, the greater the intensity of cultivation, the lower the status of women. Hypothesis 3e: In patrilineal societies the status of women will be lower than in nonpatrilineal societies. Hypothesis 3f: In patrilocal or virilocal societies the status of women will be lower than in nonpatrilocal or nonvirilocal societies. Data The data set used to test these hypotheses is Murdock and White's (1969) Standard Cross-Cultural Sample, which contains 186 pre-industrial societies. To make the SCCS a representative sample, Murdock and White divided the world into 186 regions and then selected one society from each of the regions. Region selection was intended to solve "Galton's problem" of cultural diffusion. Assuming that diffusion can and will occur when two cultures are in contact with each other, Galton's problem suggests that any sample could be biased by cultural diffusion. Murdock and White solved the problem by selecting regions that were separated by one or more significant geographical boundaries, boundaries that would limit or eliminate contact between neighboring societies. Within each region, the society / Social Forces 83:4, June 2005 that was selected was the best documented society. This means that the SCCS is, strictly speaking, a nonrandom (but nonetheless highly representative) sample. Anthropologists, missionaries, and others have recorded the information about the societies of the SCCS. All ethnographies were gathered prior to 1950 and in most cases before significant impact was made by modern societies. Controversy has surrounded the use of such data sets. Data quality differs from one society to another because of the different kinds of persons -missionaries, travelers, professional ethnographers, etc. --who were collecting the data, their motives for doing so, and their levels of competence. Data sets like the SCCS are still, however, widely used by anthropologists and some sociologists, and such studies have often produced compelling findings. We contend that the various measures used in this study have a high degree of face validity. For example, coding whether societies engaged in warfare, used the plow, or were patrilineal, and the like, are relatively straightforward constructs with meaningful indicators. The more problematic issue, in our view, pertains to the reliability of the measures. Our basic argument, however, is that, since reliability error attenuates correlation coefficients, if statistically and substantively significant findings emerge, then they actually underestimate the strength of the relationships discovered rather than distort the overall pattern of results. Overall, if the data were completely lacking in validity and reliability, then no significant relationships should be found. In 1978, Whyte created gender status variables for the SCCS. In the interest of saving an enormous amount of time and effort, Whyte coded every other society starting with Nama Hottentot and concluding with Tehuelche until he had 93 with which to work (see Whyte 1978 for a list of the 93 societies he coded). Whyte then created a set of 52 dependent variables. For purposes of simplification, he reduced the number of dependent variables by using cluster analysis. This yielded 10 dependent variable scales. These scales are the ones Whyte used in his own research on women's status. dependent variables We used three of Whyte's dependent variable scales as measures of the status of women in preindustrial societies. These scales were chosen over Whyte's seven other scales for two reasons. First, they had the strongest correlations with the independent variables in Whyte's own empirical analyses, which suggest that they are the three best measures of women's status. Second, they most clearly operationalize the concepts in the theoretical categories that we test. We also summed the three measures to create a composite measure of gender inequality. The dependent variable scales are the following: (1) Domestic authority of women, which is a cluster of three dependent variables: final authority over infants, final authority over children, and lack of male dominance over wives. This scale has an average interitem Testing Three Theories of Gender Inequality / 1429 correlation of .375. It is coded low, medium, and high, where the higher the score, the more domestic authority women have. (2) Ritualized female solidarity, which is a cluster of five dependent variables: exclusively male work organizations, exclusively female work organizations, menstrual cycle taboos, female initiation ceremonies, and lack of a belief in female inferiority. This scale has an average interitem correlation of .247. It ranges from low to high, where the higher the score, the greater the ritualized separation between men and women. (3) Control over women's marital and sexual lives (referred to in this article as "male control over female sexuality"), which is a cluster of four dependent variables: lack of a premarital double standard, lack of an extramarital double standard, remarriage ease, and relative age at first marriage. This index of male control over female sexuality has an average interitem correlation of .242 and is dichotomized into stricter and less strict levels of control. (4) Composite gender inequality variable, which is a summed index of the other three independent variables (Cronbach's alpha = .41). We created this variable to strengthen the measurement of gender inequality by creating a more sensitive measure of gender status across societies. The validity of the composite measure is supported by its rather robust correlations with all but two of the Marxian and non-Marxian materialist variables. While the Cronbach's alpha is relatively low, even for a three-item measure, the result will be to underestimate the statistical effects of the independent variables rather than alter the pattern of results. independent variables Three variables from the SCCS data bank were used to measure warfare: Internal warfare: Warfare fought in and around a society's own territories (trichotomized into infrequent, frequent, and continual). External warfare: Warfare fought at considerable distances from a society's own territories (very low, low, moderate, high, very high). Overall warfare: Operationalized as the average of internal and external warfare (very low, low, moderate, high, very high). The Marxian hypothesis was measured by two independent variables: Female economic control of the products of their own labor (absent, present). Class stratification (egalitarian, wealth distinctions only, elite or dual, complex). / Social Forces 83:4, June 2005 The non-Marxian materialist hypothesis and its subtypes were measured by the following independent variables: Percentage of the contribution of gathering to the food supply (none, less than 10%, less than 50% and less than any other, less than 50% but more than any other, more than 50%). Subsistence type (foraging, shifting cultivation with digging sticks, shifting cultivation with metal hoes, intensive agriculture without the plow, intensive agriculture with the plow). Percentage of the contribution of women to overall subsistence (low, moderate, high). Percentage of the female contribution to agriculture (0-10%, 20%-40%, 50%-60%, 70% or more). Intensity of cultivation (no agriculture or casual agriculture, extensive cultivation or horticulture, intensive agriculture with or without irrigation). Use of the plow (absent, present). Patrilineality (yes, no). Patrilocal or virilocal residence (yes, no). data analysis The data analyses were performed in two stages. First, we used ordinary chi-square tests as a test of statistical significance and gamma as a measure of association for bivariate analyses. Thirty-nine bivariate cross-tabulations were conducted to test the hypotheses, one for each combination of an independent and a dependent variable and each hypothesis. To control for potential spuriousness, in the second stage of the analysis we conducted a series of multivariate analyses, one for each of the original dependent variables. For the two dependent variables that were ordinal, domestic authority of women and ritualized female solidarity, we used ordered (proportional odds or cumulative) logistic regression. We also computed unordered multinomial logistic regression equations for comparison. For all models, significance tests suggested that the unordered multinomial logistic regression equations were unnecessary. Therefore, the models were recomputed using ordinary least squares regression and compared to the ordered logistic regressions. Because these models produced identical conclusions, the ordinary least squares regressions are shown for ease of interpretation. For the dichotomous dependent variable, male control over female sexuality, we used binary logistic regression. For the composite gender inequality variable, which ranged in value from 3 to 9, we used ordinary least squares regression. Testing Three Theories of Gender Inequality / 1431 building the models For all four dependent variables, we ran a series of ordered, hierarchical models with the warfare variables entered first into the model, followed by the Marxian variables, and then by the non-Marxian variables. Because of the small sample size, to preserve degrees of freedom and to minimize problems with multicollinearity, we used a stepwise approach by testing the effect of each independent variable in each block one at a time. Because of the small sample size and low power, we retained any independent variable that achieved a one-tailed significance level of p ≀ .10 (see Hosmer and Lemeshow 1989). Variables not achieving a significance level of .10 for entry were not included in the final models. Because the bivariate analyses gave no support for the warfare hypotheses, we entered warfare variables into the models first to give them the greatest opportunity to be included in the final models. We entered the Marxian variables next, because we wanted to give credit for any mutually (with other materialist variables) explained variance to the Marxian variables rather than to the non-Marxian materialist variables. This strategy provided the most conservative test of the non-Marxian materialist theories. We felt our ordered strategy was the most effective way to pit the three theories against one another. In a sense, non-Marxian materialist theories are not contradictory to Marxian explanations; they build upon Marxist explanations. Therefore, if non-Marxian materialist variables were not predictive above and beyond Marxian variables, then this would provide greater support for Marxian models and suggest other materialist variables are not necessary to understand gender inequality. However, if non-Marxian materialist variables were significant determinants of gender inequality after controlling for significant Marxian variables, we could conclude that Marxian theories by themselves are inadequate to explain gender inequality. Results phase 1: bivariate results Militarist Hypothesis / Social Forces 83:4, June 2005 greater the level of warfare, the lower the status of women, has no empirical support. It is true that men dominate the means of warfare, but this does not necessarily prevent women from having a relatively high degree of domestic authority, less strict controls on their sexuality by men, or the ability to form solidarity groups. Divale and Harris's version of the militarist hypothesis focuses on band and tribal societies, whereas Collins is concerned mainly with militarism and warfare in large-scale agrarian societies. Therefore, we computed separate correlations for three different types of societies (results not shown). For hunter-gatherer societies, overall warfare was moderately correlated with female domestic authority (r = -.32), but this was the only correlation that supported the militarist hypothesis. Overall warfare correlated .24 with female solidarity and .25 with male control of female sexuality; and even more striking, external warfare correlated .49 with female solidarity and .52 with male control of female sexuality. These correlations are in the opposite direction from that predicted by the theory. For horticultural societies, female domestic authority and male control of female sexuality were uncorrelated with warfare, but ritualized female solidarity correlated .45 with overall warfare. Finally, for agrarian or intensive agricultural Testing Three Theories of Gender Inequality / 1433 societies, female domestic authority and female solidarity were not correlated with warfare, but male control of female sexuality correlated .38 with overall warfare and .55 with external warfare. Once again, however, all these correlations were in the opposite direction from that predicted by the theory. Thus, there does not appear to be an interaction effect between type of society and warfare, driving yet another nail into the militarist theory's coffin. Marxian Hypothesis Non-Marxian Materialist Hypothesis The 24 tests of the non-Marxian materialist hypothesis are shown in Summary of Bivariate Results In this preliminary segment of the research, there were 39 total tests of three hypotheses (13 independent variables each being associated with 3 dependent variables). The militarist hypothesis received no support at all, failing to achieve statistical significance in any of its statistical tests. The Marxian hypothesis had some support, with three of the six statistical tests being significant and two of the six relationships of at least moderate strength. The non-Marxian materialist hypothesis clearly achieved the best support, with 67% of the 24 statistical tests being significant and 50% of the relationships of moderate to high strength. W

    Binomial Sampling of Western Flower Thrips Infesting Flowering Greenhouse Crops Using Incidence-Mean Models

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    Accurate assessments of thrips density are important for effective thrips management programs. Complicating the development of sampling plans for western flower thrips (WFT) Frankliniella occidentalis (Pergande) in greenhouse crops are the facts that they are small, difficult to detect, and attack a variety of crops, which may be grown concurrently within the same greenhouse. Binomial sampling was evaluated as an alternative to sampling plans based on complete enumeration. This work included comparison of incidence-mean models across diverse plant species (impatiens, cucumber, and marigold) to determine the possibility of using a generic model for sampling WFT in mixed crops. Data from laboratory-processed flower samples revealed that infestation rates calculated using a tally threshold of three thrips per flower provided the best estimates of thrips population densities in each tested crop and in the combined crops (composite data set). Distributions of thrips populations were similar across the three plant species, indicating potential for development of a generic sampling plan for mixed floral crops. Practical sampling methods for simple and complex flowers tested in the greenhouse (in situ) were evaluated via construction of binomial count operating characteristic functions. In the case of simple flowers (impatiens), visual inspections provided adequate estimates of thrips infestation rates at a low tally threshold, which ultimately enabled accurate estimation of thrips densities. However, visual inspection and tap-sampling of complex flowers (marigold) provided unreliable results. These findings indicate that use of binomial sampling methods in mixed floral crops will require development of more accurate sampling technique

    LoCuSS: A Comparison of Sunyaev-Zel'dovich Effect and Gravitational Lensing Measurements of Galaxy Clusters

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    We present the first measurement of the relationship between the Sunyaev-Zel'dovich effect signal and the mass of galaxy clusters that uses gravitational lensing to measure cluster mass, based on 14 X-ray luminous clusters at z~0.2 from the Local Cluster Substructure Survey. We measure the integrated Compton y-parameter, Y, and total projected mass of the clusters (M_GL) within a projected clustercentric radius of 350 kpc, corresponding to mean overdensities of 4000-8000 relative to the critical density. We find self-similar scaling between M_GL and Y, with a scatter in mass at fixed Y of 32%. This scatter exceeds that predicted from numerical cluster simulations, however, it is smaller than comparable measurements of the scatter in mass at fixed T_X. We also find no evidence of segregation in Y between disturbed and undisturbed clusters, as had been seen with T_X on the same physical scales. We compare our scaling relation to the Bonamente et al. relation based on mass measurements that assume hydrostatic equilibrium, finding no evidence for a hydrostatic mass bias in cluster cores (M_GL = 0.98+/-0.13 M_HSE), consistent with both predictions from numerical simulations and lensing/X-ray-based measurements of mass-observable scaling relations at larger radii. Overall our results suggest that the Sunyaev-Zel'dovich effect may be less sensitive than X-ray observations to the details of cluster physics in cluster cores.Comment: Minor changes to match published version: 2009 ApJL 701:114-11

    Transmission routes of rare seasonal diseases: the case of norovirus infections

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    Norovirus (NoV) is the most commonly recognized cause of acute gastroenteritis, with over a million cases globally per year. While usually self-limiting, NoV poses a substantial economic burden because it is highly contagious and there are multiple transmission routes. Infection occurs through inhalation of vomitus; faecal-oral spread; and food, water and environmental contamination. While the incidence of the disease is predictably seasonal, much less is known about the relative contribution of the various exposure pathways in causing disease. Additionally, asymptomatic excretion and viral shedding make forecasting disease burden difficult. We develop a novel stochastic dynamic network model to investigate the contributions of different transmission pathways in multiple coupled social networks representing schools, hospitals, care-homes and family households in a community setting. We analyse how the networks impact on transmission. We used ward-level demographic data from Northumberland, UK to create a simulation cohort. We compared the results with extant data on NoV cases from the IID2 study. Connectivity across the simulated cohort was high. Cases of NoV showed marked seasonality, peaking in early winter and declining through the summer. For the first time, we show that fomites and food appear to be the most important exposure routes in determining the population burden of disease. This article is part of the theme issue ‘Modelling infectious disease outbreaks in humans, animals and plants: epidemic forecasting and control’. This theme issue is linked with the earlier issue ‘Modelling infectious disease outbreaks in humans, animals and plants: approaches and important themes’

    Cross-species Malaria Immunity Induced By Chemically Attenuated Parasites

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    Vaccine development for the blood stages of malaria has focused on the induction of antibodies to parasite surface antigens, most of which are highly polymorphic. An alternate strategy has evolved from observations that low-density infections can induce antibody-independent immunity to different strains. To test this strategy, we treated parasitized red blood cells from the rodent parasite Plasmodium chabaudi with secocyclopropyl pyrrolo indole analogs. These drugs irreversibly alkylate parasite DNA, blocking their ability to replicate. After administration in mice, DNA from the vaccine could be detected in the blood for over 110 days and a single vaccination induced profound immunity to different malaria parasite species. Immunity was mediated by CD4(+) T cells and was dependent on the red blood cell membrane remaining intact. The human parasite, Plasmodium falciparum, could also be attenuated by treatment with seco-cyclopropyl pyrrolo indole analogs. These data demonstrate that vaccination with chemically attenuated parasites induces protective immunity and provide a compelling rationale for testing a blood-stage parasite-based vaccine targeting human Plasmodium species

    Addressing the environmental, community and health impacts of resource development: Challenges across scales, sectors and sites

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    Work that addresses the cumulative impacts of resource extraction on environment, community, and health is necessarily large in scope. This paper presents experiences from initiating research at this intersection and explores implications for the ambitious, integrative agenda of planetary health. The purpose is to outline origins, design features, and preliminary insights from our intersectoral and international project, based in Canada and titled the “Environment, Community, Health Observatory” (ECHO) Network. With a clear emphasis on rural, remote, and Indigenous communities, environments, and health, the ECHO Network is designed to answer the question: How can an Environment, Community, Health Observatory Network support the integrative tools and processes required to improve understanding and response to the cumulative health impacts of resource development? The Network is informed by four regional cases across Canada where we employ a framework and an approach grounded in observation, “taking notice for action”, and collective learning. Sharing insights from the foundational phase of this five-year project, we reflect on the hidden and obvious challenges of working across scales, sectors, and sites, and the overlap of generative and uncomfortable entanglements associated with health and resource development. Yet, although intersectoral work addressing the cumulative impacts of resource extraction presents uncertainty and unresolved tensions, ultimately we argue that it is worth staying with the trouble

    Addressing the environmental, community and health impacts of resource development: Challenges across scales, sectors and sites

    Get PDF
    Work that addresses the cumulative impacts of resource extraction on environment, community, and health is necessarily large in scope. This paper presents experiences from initiating research at this intersection and explores implications for the ambitious, integrative agenda of planetary health. The purpose is to outline origins, design features, and preliminary insights from our intersectoral and international project, based in Canada and titled the “Environment, Community, Health Observatory” (ECHO) Network. With a clear emphasis on rural, remote, and Indigenous communities, environments, and health, the ECHO Network is designed to answer the question: How can an Environment, Community, Health Observatory Network support the integrative tools and processes required to improve understanding and response to the cumulative health impacts of resource development? The Network is informed by four regional cases across Canada where we employ a framework and an approach grounded in observation, “taking notice for action”, and collective learning. Sharing insights from the foundational phase of this five-year project, we reflect on the hidden and obvious challenges of working across scales, sectors, and sites, and the overlap of generative and uncomfortable entanglements associated with health and resource development. Yet, although intersectoral work addressing the cumulative impacts of resource extraction presents uncertainty and unresolved tensions, ultimately we argue that it is worth staying with the trouble

    Lead optimization of a pyrazole sulfonamide series of trypanosoma brucei N -myristoyltransferase inhibitors:Identification and evaluation of CNS penetrant compounds as potential treatments for stage 2 human african trypanosomiasis

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    [Image: see text] Trypanosoma bruceiN-myristoyltransferase (TbNMT) is an attractive therapeutic target for the treatment of human African trypanosomiasis (HAT). From previous studies, we identified pyrazole sulfonamide, DDD85646 (1), a potent inhibitor of TbNMT. Although this compound represents an excellent lead, poor central nervous system (CNS) exposure restricts its use to the hemolymphatic form (stage 1) of the disease. With a clear clinical need for new drug treatments for HAT that address both the hemolymphatic and CNS stages of the disease, a chemistry campaign was initiated to address the shortfalls of this series. This paper describes modifications to the pyrazole sulfonamides which markedly improved blood–brain barrier permeability, achieved by reducing polar surface area and capping the sulfonamide. Moreover, replacing the core aromatic with a flexible linker significantly improved selectivity. This led to the discovery of DDD100097 (40) which demonstrated partial efficacy in a stage 2 (CNS) mouse model of HAT

    Limited release of previously-frozen C and increased new peat formation after thaw in permafrost peatlands

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    Permafrost stores globally significant amounts of carbon (C) which may start to decompose and be released to the atmosphere in form of carbon dioxide (CO 2 ) and methane (CH 4 ) as global warming promotes extensive thaw. This permafrost carbon feedback to climate is currently considered to be the most important carbon-cycle feedback missing from climate models. Predicting the magnitude of the feedback requires a better understanding of how differences in environmental conditions post-thaw, particularly hydrological conditions, control the rate at which C is released to the atmosphere. In the sporadic and discontinuous permafrost regions of north-west Canada, we measured the rates and sources of C released from relatively undisturbed ecosystems, and compared these with forests experiencing thaw following wildfire (well-drained, oxic conditions) and collapsing peat plateau sites (water-logged, anoxic conditions). Using radiocarbon analyses, we detected substantial contributions of deep soil layers and/or previously-frozen sources in our well-drained sites. In contrast, no loss of previously-frozen C as CO 2 was detected on average from collapsed peat plateaus regardless of time since thaw and despite the much larger stores of available C that were exposed. Furthermore, greater rates of new peat formation resulted in these soils becoming stronger C sinks and this greater rate of uptake appeared to compensate for a large proportion of the increase in CH 4 emissions from the collapse wetlands. We conclude that in the ecosystems we studied, changes in soil moisture and oxygen availability may be even more important than previously predicted in determining the effect of permafrost thaw on ecosystem C balance and, thus, it is essential to monitor, and simulate accurately, regional changes in surface wetness
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