156 research outputs found

    Diffusion And Independent Invention: A Critique Of Logic 1

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/99661/1/aa.1929.31.3.02a00070.pd

    Julian Steward and the Rise of Anthropological Theory

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    A população nativa da América do Sul

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    Experimental testing of the performance of pipeline ploughs

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    Projected climate adaptation benefits of One CGIAR

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    In the present analysis, we first create a projection of the number of beneficiaries (rural individuals and households) in climate hazard areas using geospatial datasets on climate hazards and rural population. We find that: (1) By 2030, CGIAR’s work on climate adaptation is projected to benefit 234 million rural people in 59 million rural households in regions facing significant climate hazards. (2) Some 66% of the projected individual beneficiaries are in SA (34%) and SEA (32%). India (26%) and China (24%) alone account for about 50% of beneficiaries globally. Approximately 15% are in SSA, equally divided between ESA and WCA; the remaining beneficiaries are in LAC (7%) and CWANA (11%). (3) Adoption of climate-smart agricultural practices, climate-adapted varieties, and climate-related advisory services will increase productivity by an average of 24 % and, in at least 62% of cases, will also reduce interannual yield variability. Despite these significant potential upside gains, changing farming practices also carries production risk. (4) Scaling up both improved varieties and improved agronomy could more than double economic benefits as compared to improved varities alone; this suggests that integrative programs that bundle several innovations have the potential to amplify impact

    Priority areas for investment in more sustainable and climate-resilient livestock systems

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    Livestock production supports economic growth, jobs and nutrition, but contributes to and is vulnerable to climate change. A transition is thus needed for livestock systems to become more sustainable and climate resilient, with clear positive effects on the Sustainable Development Goals. It is unclear, however, where the global community should invest to support this change. We identified priority geographies for livestock system investments in 132 low- and middle-income countries (LMICs), at mid- and low latitudes. Our results show that adaptation and mitigation goals are inextricably linked for the vast majority of these countries. An equal weighting of adaptation and mitigation indicators suggests that the top five investment priorities are India, Brazil, China, Pakistan and Sudan. Across LMICs, these act as critical control points for the livestock sector’s interactions with the climate system, land and livelihoods

    Genomic Dissection of an Icelandic Epidemic of Respiratory Disease in Horses and Associated Zoonotic Cases.

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    Iceland is free of the major infectious diseases of horses. However, in 2010 an epidemic of respiratory disease of unknown cause spread through the country's native horse population of 77,000. Microbiological investigations ruled out known viral agents but identified the opportunistic pathogen Streptococcus equi subsp. zooepidemicus (S. zooepidemicus) in diseased animals. We sequenced the genomes of 257 isolates of S. zooepidemicus to differentiate epidemic from endemic strains. We found that although multiple endemic clones of S. zooepidemicus were present, one particular clone, sequence type 209 (ST209), was likely to have been responsible for the epidemic. Concurrent with the epidemic, ST209 was also recovered from a human case of septicemia, highlighting the pathogenic potential of this strain. Epidemiological investigation revealed that the incursion of this strain into one training yard during February 2010 provided a nidus for the infection of multiple horses that then transmitted the strain to farms throughout Iceland. This study represents the first time that whole-genome sequencing has been used to investigate an epidemic on a national scale to identify the likely causative agent and the link to an associated zoonotic infection. Our data highlight the importance of national biosecurity to protect vulnerable populations of animals and also demonstrate the potential impact of S. zooepidemicus transmission to other animals, including humans.IMPORTANCE An epidemic of respiratory disease affected almost the entire native Icelandic horse population of 77,000 animals in 2010, resulting in a self-imposed ban on the export of horses and significant economic costs to associated industries. Although the speed of transmission suggested that a viral pathogen was responsible, only the presence of the opportunistic pathogen Streptococcus zooepidemicus was consistent with the observed clinical signs. We applied genomic sequencing to differentiate epidemic from endemic strains and to shed light on the rapid transmission of the epidemic strain throughout Iceland. We further highlight the ability of epidemic and endemic strains of S. zooepidemicus to infect other animals, including humans. This study represents the first time that whole-genome sequencing has been used to elucidate an outbreak on a national scale and identify the likely causative agent

    Mulat-estetiek: ’n Analise van Adam Small se dramas

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    Opsomming In hierdie artikel word die dramakonvensies van Adam Small ondersoek met besondere aandag aan perspektiewe op die mulat as ’n sosiale gegewe. Hierdie element bied ’n gepaste invalshoek omdat dit enersyds ‘n verskynsel is wat Small in sy dramas en ander skryfwerk aansny en daar andersyds ’n uitgebreide literatuur bestaan waarin oor die dramatiese, lewensbeskoulike en literĂȘr-teoretiese inkleding daarvan besin word. Die werk van onder andere Langston Hughes en Derek Walcott word ondersoek om ’n leesstrategie te ontwikkel waarmee die Small-teks geanaliseer kan word.Web of Scienc

    Quantifying direct and indirect contacts for the potential transmission of infection between species using a multilayer contact network

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    Detecting opportunities for between-species transmission of pathogens can be challenging, particularly if rare behaviours or environmental transmission are involved. We present a multilayer network framework to quantify transmission potential in multi-host systems, incorporating environmental transmission, by using empirical data on direct and indirect contacts between European badgers Meles meles and domestic cattle. We identify that indirect contacts via the environment at badger latrines on pasture are likely to be important for transmission within badger populations and between badgers and cattle. We also find a positive correlation between the role of individual badgers within the badger social network, and their role in the overall badger-cattle-environment network, suggesting that the same behavioural traits contribute to the role of individual badgers in within- and between-species transmission. These findings have implications for disease management interventions in this system, and our novel network approach can provide general insights into transmission in other multi-host disease systems
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