48 research outputs found

    Health and demography in late 19th century Kimberley : a palaeopathological assessment

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    One-hundred-and-forty-five unmarked graves were accidentally uncovered outside the Gladstone cemetery in Kimberley, South Africa, in 2003. This study aimed to describe the archaeological findings, demographic composition and health of the unknown human remains excavated from the site. Fifteen graves containing 107 skeletons were exhumed from the trench and analyzed using standard anthropometric techniques. Archaeological and palaeopathological evidence suggested that the remains were most likely those of migrant mine workers who died between 1897 and 1900, with the majority of the population consisting of young male individuals of low socio-economic status. The prevalence of infectious diseases observed in the sample, most likely reflects the pre-antibiotic era from which these individuals came as well as the overcrowded and unhygienic living conditions to which they were exposed on a daily basis. High frequencies of cranial and long bone fractures observed are testimony to the high levels of interpersonal violence and hazardous mining environment described in archival documents. Other pathological lesions such as spondylolysis, Schm_rl's nodes and enthesophytes are possibly indicative of the physical demands associated with mining activities. These results support reports describing the appalling conditions and hazards to which migrant mine workers were exposed to in the late nineteenth centuryUBL - phd migration 201

    Activity budgets of male Maccoa ducks

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    The behaviour of breeding and non-breeding male maccoa ducks (Oxywa maccoa) was studied in South Africa. Individual ducks were observed continuously from sunrise to sunset in the wild, and all ritualized and non-ritualized behaviour was recorded. Diurnal time budgets of territorial and non-territorial males were translated into energy budgets, showing relative time and energy expenditures for resting, foraging, preening and bathing, territorial defence and courtship activities. A territorial male spent one-third of the daytime on active behaviour associated with reproduction. Territorial males averaged 297 displays per fifteen-hour day, or about one display every three minutes. Active defence of territory occupied 15 per cent of a male's time budget, adding an estimated 20 per cent to the energy a non-breeding male spent on self-maintenance. Active courtship of females occupied IS per cent of a male's time budget, adding 18 per cent to the energy a non-breeding male spent on self-maintenance. The increase in time spent on reproductive behaviour over that of a non-breeding male is achieved mainly through decrease of time allocated to resting in the budget of the non-breeder. Territorial males increased energy expenditure by a factor of 1,3, but devoted the same portion of time as non-breeders to actual feeding (21 per cent). Energy and time-saving strategies were associated with territorial defence and courtship, contributing towards optimization of time and energy budgeting

    Habitual Activity in Pre-industrial Rural and Urban Dutch Populations: A Study of Lower Limb Cross-sectional Geometry

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    This study combines historical data and the principles of bone functional adaptation to examine variation in terrestrial mobility in men and women from pre-industrial urban (Alkmaar 7M, 9F) and rural (Klaaskinderkerke 12M, 8F; Middenbeemster 21M, 22F) Dutch populations. Cross-sectional properties of the femoral and tibial midshaft are determined to investigate variation in lower limb mechanical loading. All populations had comparable age ranges. Rural Middenbeemster males had significantly more elliptically shaped tibiae compared to the other populations. Rural males from Klaaskinderkerke had significantly greater femoral cross-sectional area and torsional rigidity compared to females. In the tibia, the males from both rural populations had greater torsional rigidity and cross-sectional area compared to females. In the rural Middenbeemster population the males also had significantly more elliptically shaped tibiae compared to females. While no sexual dimorphism was found in the urban Alkmaar, significantly greater variation in lower limb cross-sectional properties was found for both males and females relative to the rural populations. These results conform to predictions based on the historical literature of greater lower limb loading in rural males compared to females as well as a greater variety of tasks performed in urban environments. The lack of significant differences in lower limb torsional rigidity or shape between populations in either sex suggests that rural life was not necessarily more physically strenuous than urban life in pre-industrial Dutch populations. However, variation in sexual dimorphism suggests that labor between males and females was differently organized in the rural and urban samples.BioarchaeologyRoman Provinces, Middle Ages and Modern Perio

    First principles calculation of uniaxial magnetic anisotropy and magnetostriction in strained CMR films

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    We performed first - principles relativistic full-potential linearized augmented plane wave calculations for strained tetragonal ferromagnetic La(Ba)MnO3_3 with an assumed experimental structure of thin strained tetragonal La0.67_{0.67}Ca0.33_{0.33}MnO3_3 (LCMO) films grown on SrTiO3_3[001] and LaAlO3_3[001] substrates. The calculated uniaxial magnetic anisotropy energy (MAE) values, are in good quantitative agreement with experiment for LCMO films on SrTiO3_3 substrate. We also analyze the applicability of linear magnetoelastic theory for describing the stain dependence of MAE, and estimate magnetostriction coefficient λ001\lambda_{001}.Comment: Talk given at APS99 Meeting, Atlanta, 199

    Fungal Planet description sheets : 320–370

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    Novel species of fungi described in the present study include the following from Malaysia: Castanediella eucalypti from Eucalyptus pellita, Codinaea acacia from Acacia mangium, Emarcea eucalyptigena from Eucalyptus brassiana, Myrtapenidiella eucalyptorum from Eucalyptus pellita, Pilidiella eucalyptigena from Eucalyptus brassiana and Strelitziana malaysiana from Acacia mangium. Furthermore, Stachybotrys sansevieriicola is described from Sansevieria ehrenbergii (Tanzania), Phacidium grevilleae from Grevillea robusta (Uganda), Graphium jumulu from Adansonia gregorii and Ophiostoma eucalyptigena from Eucalyptus marginata (Australia), Pleurophoma ossicola from bone and Plectosphaerella populi from Populus nigra (Germany), Colletotrichum neosansevieriae from Sansevieria trifasciata, Elsinoë othonnae from Othonna quinquedentata and Zeloasperisporium cliviae (Zeloasperisporiaceae fam. nov.) from Clivia sp. (South Africa), Neodevriesia pakbiae, Phaeophleospora hymenocallidis and Phaeophleospora hymenocallidicola on leaves of a fern (Thailand), Melanconium elaeidicola from Elaeis guineensis (Indonesia), Hormonema viticola from Vitis vinifera (Canary Islands), Chlorophyllum pseudoglobossum from a grassland (India), Triadelphia disseminata from an immunocompromised patient (Saudi Arabia), Colletotrichum abscissum from Citrus (Brazil), Polyschema sclerotigenum and Phialemonium limoniforme from human patients (USA), Cadophora vitícola from Vitis vinifera (Spain), Entoloma flavovelutinum and Bolbitius aurantiorugosus from soil (Vietnam), Rhizopogon granuloflavus from soil (Cape Verde Islands), Tulasnella eremophila from Euphorbia officinarum subsp. echinus (Morocco), Verrucostoma martinicensis from Danaea elliptica (French West Indies), Metschnikowia colchici from Colchicum autumnale (Bulgaria), Thelebolus microcarpus from soil (Argentina) and Ceratocystis adelpha from Theobroma cacao (Ecuador). Myrmecridium iridis (Myrmecridiales ord. nov., Myrmecridiaceae fam. nov.) is also described from Iris sp. (The Netherlands). Novel genera include (Ascomycetes): Budhanggurabania from Cynodon dactylon (Australia), Soloacrosporiella, Xenocamarosporium, Neostrelitziana and Castanediella from Acacia mangium and Sabahriopsis from Eucalyptus brassiana (Malaysia), Readerielliopsis from basidiomata of Fuscoporia wahlbergii (French Guyana), Neoplatysporoides from Aloe ferox (Tanzania), Wojnowiciella, Chrysofolia and Neoeriomycopsis from Eucalyptus (Colombia), Neophaeomoniella from Eucalyptus globulus (USA), Pseudophaeomoniella from Olea europaea (Italy), Paraphaeomoniella from Encephalartos altensteinii, Aequabiliella, Celerioriella and Minutiella from Prunus (South Africa). Tephrocybella (Basidiomycetes) represents a novel genus from wood (Italy). Morphological and culture characteristics along with ITS DNA barcodes are provided for all taxa.Alina V. Alexandrova was supported by the Russian Science Foundation (project N 14-50-00029). Ekaterina F. Malysheva, Olga V. Morozova, Alexander E. Kovalenko and Eugene S. Popov acknowledge financial support from the Russian Foundation for Basic Research (project 13-04-00838a and 15-04-04645a). Margarita Dueñas, María P. Martín and M. Teresa Telleria acknowledge financial support from the Plan Nacional I+D+I projects No. CGL2009-07231 and CGL2012-3559. Cony Decock gratefully acknowledges the financial support received from the FNRS / FRFC (convention FRFC 2.4544.10), the CNRS-French Guiana and the Nouragues staff, which enabled fieldwork in French Guiana, and the Belgian State – Belgian Federal Science Policy through the BCCMTM research programme.http://www.ingentaconnect.com/content/nhn/pimjam201

    Review about mites (Acari) of rubber trees (Hevea spp., Euphorbiaceae) in Brazil

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    The psychosocial functioning of nurses in a burn unit

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    The aim of the study was to determine what the effect of a stressful work environment is on the psychosocial functioning of burn unit nurses. A standardised scale, the Psychosocial Functioning Inventory, was used to measure psychosocial functioning. In addition, a questionnaire was constructed to identify sources of stress, coping mechanisms and the need for support programmes. Scaling and interpretation of the Psychosocial Functioning Inventory were done by a computer program. A qualitative analysis of data patterns on the questionnaire was done according to modal class. Twenty-one nurses in the burn unit completed the scales. The control group consisted of 18 nurses from the departments of plastic surgery and obstetrics. The psychosocial functioning of burn unit nurses was within optimal levels, except on the stress scale, where they were slightly overactivated. Workload and poor remuneration were the most important stressors. Good relationships amongst the nurses and team support enabled them to cope with the stressors. It is recommended that attention be paid to remuneration of nurses, a better nurse-patient ratio and the promotion of interdisciplinary teamwork.Articl

    Molecular research on the systematically challenging smoothhound shark genus Mustelus: a synthesis of the past 30 years

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    The species-rich genus Mustelus (smoothhounds) of the shark family Triakidae is one of the most bio-economically important groups of elasmobranchs in the world’s oceans. Despite the commercial value of Mustelus, the systematics of the group remains largely unresolved and there is no global review or synthesis of knowledge about the conservation status and conservation genetics of smoothhounds across all oceanic regions. Here, we analysed published studies as well as grey literature to gain insight into the biogeographic, ecological and behavioural factors that shape genetic diversity in smoothhounds, and we identify critical knowledge gaps. From a series of molecular phylogenetic studies it can be inferred that the genus Mustelus is paraphyletic and that the aplacental species evolved secondarily from the placental species of the genus. The increasing availability of genetic data aids in disentangling systematic issues, such that more meaningful morphological characters can be chosen for use in practical field-identification keys for co-occurring smoothhounds. An integrative taxonomic approach to the genus Mustelus may offer the best chance of recording and protecting the biodiversity of these sharks. Furthermore, it is evident that different smoothhound species exhibit unique gene-flow patterns, suggesting varying rates within species and hence that species-level conservation approaches would be most appropriate. Molecular studies have advanced our understanding of smoothhound biology (including reproductive traits), ecology and evolution. While many knowledge gaps remain, a crucial lesson from this review is that, when doing assessments on a molecular level, it is important to place genetic results in a broader context, by assimilating biological and ecological data, if definitive conclusions are to be drawn.Keywords: conservation genetics, endemism, genetic identification, integrative taxonomy, literature review, molecular ecology, multiple paternity, population structure, systematics, Triakida

    A study to assess the effects of a new betadine cream formulation compared to a standard topical treatment regimen for burns

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    This study has shown that Betadine cream with or without Aserbine is as easy to apply and remove as Betadine ointment plus Aserbine. With Betadine cream there is as good as and in some instances better healing than with Betadine ointment/Aserbine in the topical treatment of burns. However, the addition of a necrolytic cream to Betadine cream does have favourable effects on wound healing and bacterial counts. More importantly, this study suggests that Betadine cream can penetrate the wound more effectively than the Betadine ointment/Aserbine combination but that the addition of a necrolytic cream is still advantageous.Articl

    Paleodysmorphology and paleoteratology: Diagnosing and interpreting congenital conditions of the skeleton in anthropological contexts

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    Most congenital conditions have low prevalence, but collectively they occur in a few percent of all live births. Congenital conditions are rarely encountered in anthropological studies, not least because many of them have no obvious effect on the skeleton. Here, we discuss two groups of congenital conditions that specifically affect the skeleton, either qualitatively or quantitatively. Skeletal dysplasias (osteochondrodysplasias) interfere with the histological formation, growth and maturation of skeletal tissues leading to diminished postural length, but the building plan of the body is unaffected. Well- known skeletal dysplasias represented in the archeological record include osteogenesis imperfecta and achondroplasia. Dysostoses, in contrast, interfere with the building plan of the body, leading to e.g. missing or extraskeletal elements, but the histology of the skeletal tissues is unaffected. Dysostoses can concern the extremities (e.g., oligodactyly and polydactyly), the vertebral column (e.g., homeotic and meristic anomalies), or the craniofacial region. Conditions pertaining to the cranial sutures, i.e., craniosynostoses, can be either skeletal dysplasias or dysostoses. Congenital conditions that are not harmful to the individual are known as anatomical variations, several of which have a high and population-specific prevalence that could potentially make them useful for determining ethnic origins. In individual cases, specific congenital conditions could be determinative in establishing identity, provided that ante-mortem registration of those conditions was ensured. Clin. Anat. 29:878-891, 2016. (c) 2016 The Authors Clinical Anatomy published by Wiley Periodicals, Inc. on behalf of American Association of Clinical Anatomists
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