175 research outputs found
Mobility, Sedentism, and Intensification: Organizational Responses to Environmental and Social Change Among the San of Southern Africa
HUNTER-GATHERER ADAPTATIONS included mobility strategies that were geared toward mapping people on to both resources and other people. There are factors that condition the ways in which people position themselves on the landscape and move over it. Mobility strategies are organizational responses to the structural properties of the natural and social environments (Binford 1980, 2001). The logistical component of a settlement system, in which task-specific groups range out from residential locations for purposes of obtaining food, raw materials, or information, is related to the organization of production of a society as well as to the distribution of critical resources in the environment. Anthropologists and archaeologists are concerned about the organization of human actions. Mobility, or the movement from one place to another by a group or individual, is an important aspect of human behavior, in part because it has important influences on social systems and ecosystems. Mobility is a characteristic feature of human adaptive strategies. Movements are undertaken for a variety of purposes, some of them relating to the need to exploit spatially and temporally variable resources and others for social, political, and ideological purposes
Introduction to \u3ci\u3eEndangered Peoples of Africa and the Middle East : Struggles to Survive and Thrive\u3c/i\u3e
Endangered Peoples of Africa and the Middle East: Struggles to Survive and Thrive is about human populations residing in Africa and the Middle East, a diverse region that is connected geographically, culturally, and historically. The African continent is vast and covers 11.7 million square miles, or an area slightly larger than the combined area of the United States and South America (Table 1). Today, the African continent is home to some 771 million people distributed within fifty-four separate countries. Of the world\u27s continents, Africa is by far the most diverse culturally. In Sudan, for example, there are over 200 ethnic groups speaking some 134 languages, while in Nigeria there are some 600 or more ethnic groups who speak as many as 505 different languages. The Middle East, for purposes of this volume, is taken to include fifteen countries, ranging from Afghanistan in the east to Turkey and Syria in the west. Together, these countries cover a total of 2,704,730 square miles and support a population of 254,428,629 (Table 2). The Middle East includes large, petroleum-rich countries (e.g., Iraq, Iran, Saudi Arabia) and small countries such as Bahrain (an island monarchy) and a federation of seven small monarchies (the United Arab Emirates)
Ishi and the California Indian Genocide as Developmental Mass Violence
Ishi represents a form of sentimental folk reductionism. But he can be a teaching tool for the California Indian Genocide, John Sutter also. His mill was where gold was discovered – setting off a frenzied settlement in which Indians were legally enslaved and slaughtered, finally ending a decade after the Emancipation Proclamation. They had already experienced wholesale devastation under Spanish and Mexican colonization. The mission system itself was inhumane and genocidal. It codified enslavement and trafficking of Indians as economically useful and morally purposeful. Mexican administration paid lip service to Indian emancipation but exploited them ruthlessly as peons. The California genocide typifies an expanded understanding of genocide and how it operates in a developmental paradigm. We then turn to a related model of the indigenous experience. Using developmental genocide in a gangland “democracy” and Andrew Woolford’s ontologies of destruction, a 500-year wholesale assault, we champion genocide as generic while including specific modes mediated by economic or civil destruction and challenging the unmediated model – direct mass killing – as the archetypical form. Allied with this, a model mediated by civil war also helps explain genocide in the Americas, including California. Genocide of native peoples operates through a cultural and moral reductionism that allows them to be manipulated (and destroyed) as objects
Introduction to \u3ci\u3eEndangered Peoples of Africa and the Middle East : Struggles to Survive and Thrive\u3c/i\u3e
Endangered Peoples of Africa and the Middle East: Struggles to Survive and Thrive is about human populations residing in Africa and the Middle East, a diverse region that is connected geographically, culturally, and historically. The African continent is vast and covers 11.7 million square miles, or an area slightly larger than the combined area of the United States and South America (Table 1). Today, the African continent is home to some 771 million people distributed within fifty-four separate countries. Of the world\u27s continents, Africa is by far the most diverse culturally. In Sudan, for example, there are over 200 ethnic groups speaking some 134 languages, while in Nigeria there are some 600 or more ethnic groups who speak as many as 505 different languages. The Middle East, for purposes of this volume, is taken to include fifteen countries, ranging from Afghanistan in the east to Turkey and Syria in the west. Together, these countries cover a total of 2,704,730 square miles and support a population of 254,428,629 (Table 2). The Middle East includes large, petroleum-rich countries (e.g., Iraq, Iran, Saudi Arabia) and small countries such as Bahrain (an island monarchy) and a federation of seven small monarchies (the United Arab Emirates)
Grounded Theory Ethnography: Merging Methodologies for Advancing Naturalistic Inquiry
This inquiry explores the history and potential of blending grounded theory and ethnography for conducting qualitative research in education and the social sciences. We argue that grounded theory ethnography can be an effective strategy for bridging the research-to-practice gap particularly in practitioner-based fields such as adult education
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Local delivery of fluorescent dye for fiber-optics confocal microscopy of the living heart
Fiber-optics confocal microscopy (FCM) is an emerging imaging technology with various applications in basic research and clinical diagnosis. FCM allows for real-time in situ microscopy of tissue at sub-cellular scale. Recently FCM has been investigated for cardiac imaging, in particular, for discrimination of cardiac tissue during pediatric open-heart surgery. FCM relies on fluorescent dyes. The current clinical approach of dye delivery is based on systemic injection, which is associated with high dye consumption, and adverse clinical events. In this study, we investigated approaches for local dye delivery during FCM imaging based on dye carriers attached to the imaging probe. Using three-dimensional confocal microscopy, automated bench tests, and FCM imaging we quantitatively characterized dye release of carriers composed of open-pore foam only and foam loaded with agarose hydrogel. In addition, we compared local dye delivery with a model of systemic dye delivery in the isolated perfused rodent heart. We measured the signal-to-noise ratio (SNR) of images acquired in various regions of the heart. Our evaluations showed that foam-agarose dye carriers exhibited a prolonged dye release vs. foam-only carriers. Foam-agarose dye carriers allowed reliable imaging of 5–9 lines, which is comparable to 4–8 min of continuous dye release. Our study in the living heart revealed that the SNR of FCM images using local and systemic dye delivery is not different. However, we observed differences in the imaged tissue microstructure with the two approaches. Structural features characteristic of microvasculature were solely observed for systemic dye delivery. Our findings suggest that local dye delivery approach for FCM imaging constitutes an important alternative to systemic dye delivery. We suggest that the approach for local dye delivery will facilitate clinical translation of FCM, for instance, for FCM imaging during pediatric heart surgery
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Sensitivity and Specificity of Cardiac Tissue Discrimination Using Fiber-Optics Confocal Microscopy
Disturbances of the cardiac conduction system constitute a major risk after surgical repair of complex cases of congenital heart disease. Intraoperative identification of the conduction system may reduce the incidence of these disturbances. We previously developed an approach to identify cardiac tissue types using fiber-optics confocal microscopy and extracellular fluorophores. Here, we applied this approach to investigate sensitivity and specificity of human and automated classification in discriminating images of atrial working myocardium and specialized tissue of the conduction system. Two-dimensional image sequences from atrial working myocardium and nodal tissue of isolated perfused rodent hearts were acquired using a fiber-optics confocal microscope (Leica FCM1000). We compared two methods for local application of extracellular fluorophores: topical via pipette and with a dye carrier. Eight blinded examiners evaluated 162 randomly selected images of atrial working myocardium (n = 81) and nodal tissue (n = 81). In addition, we evaluated the images using automated classification. Blinded examiners achieved a sensitivity and specificity of 99.2±0.3% and 98.0±0.7%, respectively, with the dye carrier method of dye application. Sensitivity and specificity was similar for dye application via a pipette (99.2±0.3% and 94.0±2.4%, respectively). Sensitivity and specificity for automated methods of tissue discrimination were similarly high. Human and automated classification achieved high sensitivity and specificity in discriminating atrial working myocardium and nodal tissue. We suggest that our findings facilitate clinical translation of fiber-optics confocal microscopy as an intraoperative imaging modality to reduce the incidence of conduction disturbances during surgical correction of congenital heart disease
Orb-web spider Argiope (Araneidae) as indigenous arrow poison of G/ui and G//ana San hunters in the Kalahari
Hunting has been crucial in early human evolution. Some San (Bushmen) of southern Africa still practice their indigenous hunting. The use of poisons is one remarkable aspect of their bow-and-arrow hunting but the sources, taxonomic identifications of species used, and recipes, are not well documented. This study reports on fieldwork to investigate recent indigenous hunting practices of G/ui and G//ana San communities in the Central Kalahari Game Reserve (CKGR), Botswana. Here we discuss their use of spider poison. The hunters use the contents of the opisthosoma (‘abdomen’) of a spider as sole ingredient of the arrow poison and discard the prosoma that contains the venom-glands. Using taxonomic keys, we identified the spider as the garden orb-web spider Argiope australis (Walckenaer 1805) (Araneidae). The hunters’ choice of this species is remarkable given the scientific perception that A. australis is of little medical importance. The species choice raises questions about how the spider fluids could kill game, particularly when the prosoma, which contains the venom glands, is not used. Possibilities include trauma, as a source of pathogens, or abdomen- containing toxins. Based on characteristics of Argiope Audouin 1826, we hypothesize that the choice of this species for arrow poisons might have evolved from the recognition of aposematic signalling or spiritual symbolism. Indigenous knowledge (IK) is an important source for advances in biotechnology but is in decline worldwide. The study contributes to the documentation of the San people, and their ancient IK, which is threatened by marginalization, political pressures, and climate change
The sweet spot in sustainability: a framework for corporate assessment in sugar manufacturing
The assessment of corporate sustainability has become an increasingly important topic, both within academia and in industry. For manufacturing companies to conform to their commitments to sustainable development, a standard and reliable measurement framework is required. There is, however, a lack of sector-specific and empirical research in many areas, including the sugar industry. This paper presents an empirically developed framework for the assessment of corporate sustainability within the Thai sugar industry. Multiple case studies were conducted, and a survey using questionnaires was also employed to enhance the power of generalisation. The developed framework is an accurate and reliable measurement instrument of corporate sustainability, and guidelines to assess qualitative criteria are put forward. The proposed framework can be used for a company’s self-assessment and for guiding practitioners in performance improvement and policy decision-maki
Beetle and plant arrow poisons of the Ju|’hoan and Hai||om San peoples of Namibia (Insecta, Coleoptera, Chrysomelidae; Plantae, Anacardiaceae, Apocynaceae, Burseraceae)
The use of archery to hunt appears relatively late in human history. It is poorly understood but the application of poisons to arrows to increase lethality must have occurred shortly after developing bow hunting methods; these early multi-stage transitions represent cognitive shifts in human evolution. This paper is a synthesis of widely-scattered literature in anthropology, entomology, and chemistry, dealing with San (“Bushmen”) arrow poisons. The term San (or Khoisan) covers many indigenous groups using so-called ‘click languages’ in southern Africa. Beetles are used for arrow poison by at least eight San groups and one non-San group. Fieldwork and interviews with Ju|’hoan and Hai||om hunters in Namibia revealed major differences in the nature and preparation of arrow poisons, bow and arrow construction, and poison antidote. Ju|’hoan hunters use leaf-beetle larvae of Diamphidia Gerstaecker and Polyclada Chevrolat (Chrysomelidae: Galerucinae: Alticini) collected from soil around the host plants Commiphora africana (A. Rich.) Engl. and Commiphora angolensis Engl. (Burseracaeae). In the Nyae Nyae area of Namibia, Ju|’hoan hunters use larvae of Diamphidia nigroornata Ståhl. Larvae and adults live above-ground on the plants and eat leaves, but the San collect the underground cocoons to extract the mature larvae. Larval hemolymph is mixed with saliva and applied to arrows. Hai||om hunters boil the milky plant sap of Adenium bohemianum Schinz (Apocynaceae) to reduce it to a thick paste that is applied to their arrows. The socio-cultural, historical, and ecological contexts of the various San groups may determine differences in the sources and preparation of poisons, bow and arrow technology, hunting behaviors, poison potency, and perhaps antidotes
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