Diferenciación social campesina en concejos de abadengo (siglos XIII-XVI)

Partiendo de la documentación correspondiente al Monasterio de Santo Toribio de Liébana se indagó sobre la existencia de políticas señoriales diferenciales que favorecieron la polarización social de las comunidades dependientes. El proceso de subdivisión de las antiguas unidades domésticas, que se constituía en un mecanismo tradicional de incremento de las exacciones, propiciaba la paulatina pauperización de los sectores tributarios medios, que debían buscar en el trabajo asalariado el complemento necesario para su subsistencia. Paralelamente, la persistencia de vínculos diferenciales con algunos miembros de la comunidad (que comprometían su accionar en la consolidación de los derechos patrimoniales del monasterio y se constituían en el engranaje más pequeño del aparato de dominación feudal) fomentaban la reproducción social de los pecheros ricos que inician a lo largo del siglo XV, con la anuencia del señor, un proceso de acumulación de pequeñas tenencias a censo. El análisis propuesto se aleja de las posturas historiográficas que centran el estudio en el movimiento de las "variables económicas objetivas" y reinserta la problemática de la diferenciación social en el marco del señorío.

Claroscuros del desarrollo sustentable y la lucha contra la desertificación: las racionalidades económicas en el ojo de la tormenta : Estudio de caso con productores caprinos de tierras secas (Mendoza, Argentina)

El trabajo analiza la situación de conflicto que se presenta en las tierras secas de Mendoza, entre productores caprinos y programas de lucha contra la desertificación, a propósito de las prácticas productivas y el uso de los recursos naturales.Se aborda un caso de estudio situado en el extremo noreste de la provincia de Mendoza, polo hiperárido de la región, gravemente afectado por procesos de desertificación, con una extensión de 10.007km2 y poblado por 3015 habitantes, donde dominan las pequeñas explotaciones caprinas. Estudios previos señalan que las principales causas de la desertificación de la zona son la tala de bosque nativo y el sobrepastoreo que ocasionan las inadecuadas prácticas de producción ganadera. En respuesta a ello, las acciones de lucha contra la desertificación se orientan a "concientizar" y "capacitar" a los productores e impulsan procesos de cambio productivo. Las propuestas en curso insisten en que, de mantenerse los actuales niveles de presión sobre los recursos, en el futuro se amplificarán las ya graves condiciones de pobreza y desertificación. Sin embargo, a pesar de los esfuerzos y fondos invertidos los productores parecen obstinados en sus actuales estrategias de producción y en la dinámica de uso de los recursos naturales que de ellas derivan. ¿Cómo explicar que no tomen otras opciones productivas que impliquen mayores beneficios económicos y mejores equilibrios ambientales? ¿Cómo explicar que actúen, al menos en apariencia, en contra de sus propios beneficios? Haciendo crítica de las explicaciones que ubican en el epicentro del problema "la cultura" de los productores, este trabajo busca realizar un aporte a través del análisis de tres dimensiones: 1- La oferta ambiental que es soporte de las actividades productivas, 2- Los ingresos que las unidades de producción alcanzan y 3- Los egresos que enfrentan en concepto de subsistencia. El trabajo se despliega haciendo uso de una metodología mixta que resulta de la combinación de técnicas cuantitativas y cualitativas.

Análisis y pautas para el mejoramiento socioeconómico de los productores del oeste pampeano

En la zona comprendida entre las isoyetas de 500 mm a 300 mm, perteneciente a la provincia fitogeográfica del Monte, una población rural de 6.845 habitantes, 9 del total provincial, con una densidad de 0,2 hab /km2, habita los cinco departamentos del centro y extremo oeste de La Pampa, cuya superficie abarca el 38 de la provincia. Su economía de subsistencia se desarrolla sobre campos naturales, con una ganadería de bovinos, caprinos, ovinos y equinos. La población presenta un alto grado de dispersión y un significativo aislamiento respecto de los centros más poblados. El objetivo a cumplir, modificar las condiciones de vida de los "crianceros", hace necesaria la aplicación de pautas que permitan convertir estas economías de subsistencia en pequeños emprendimientos ganaderos con aceptables índices de rentabilidad mediante el uso más eficiente del medio y sus recursos. Esta estructura productiva ha de permitir una relación más solidaria entre los ganaderos, una mayor libertad en la toma de decisiones y una mayor independencia económica. La consolidación estable de este proyecto y el logro de sus objetivos redundarán en un mejor manejo del ecosistema, así como en un marcado mejoramiento de la calidad de vida de estos alejados productores rurales.

Ferroviarios y Zapleros en Jujuy : De la seguridad social a la inestabilidad laboral

El presente trabajo propone un recorrido analítico y comparativo conducente a identificar e interpretar cómo las transformaciones de Ferrocarriles Argentinos (FA) y Altos Hornos Zapla (AHZ) a principios de la década de 1990 afectaron las condiciones de trabajo de sus hasta entonces empleados, tanto en el aspecto material como en el simbólico-identitario. Para ello, en un primer momento, se reconstruye, brevemente, la historia de ambas empresas haciendo foco en el empleo y las condiciones laborales antes y durante los procesos de privatización o desmantelamiento, según el caso. Luego se analizan las condiciones laborales de los ahora ex empleados y se intenta identificar sus nuevas inserciones ocupacionales y las características de las mismas. En las conclusiones se recuperan las similitudes y divergencias entre ambos casos. Se observa que en su situación actual parece jugar de manera diferenciada el rol del sindicato (en el caso de FA) y el de la empresa (en AHZ), dando lugar a distinta capacidad de respuestaante la desaparición de la fuente de trabajo. Entre las conclusiones también se destaca el hecho de que, en su mayoría, los ex empleados de fa y de ahz en Jujuy no han logrado reinsertarse laboralmente en una situación similar a la que tenían en dichas empresas, generando no solo consecuencias en el plano material (para la subsistencia de ellos y sus familias) sino también en la construcción y valorización de sus identidades sociolaborales

Survey of living conditions of Arctic indigenous peoples

Major findings of the Survey of Living Conditions in the Arctic (SLiCA) are: (1) A combination of traditional activities and cash employment is the prevailing lifestyle of Arctic indigenous peoples; (2) family ties, social support of each other, and traditional activities have a lot to do with why indigenous people choose to remain in Arctic communities; (3) well-being is closely related to job opportunities, locally available fish and game, and a sense of local control. Well-being and depression (and related problems like suicide) are flip sides of the same coin. Improving well-being may reduce social problems; and, (4) health conditions vary widely in the Arctic: three-in-four Greenlandic Inuit self-rate their health as at least very good compared with one-in-two Canadian and Alaska Inuit and one-in-five Chukotka indigenous people. Findings are based on 7,200 interviews in a probability sample of Inupiat settlement regions of Alaska, the four Inuit settlement regions of Canada, all of Greenland, and the Anadyrskij, Anadyr, Shmidtovs, Beringovskij, Chukotskij, Iujl'tinskij, Bilibinskij, Chaunskij, Providenskij, Uel'Kal' districts of Chukotka. Indigenous people and researchers from Greenland, Russia, Canada, the United States, Denmark, Norway, Sweden, and Finland collaborated on all phases of the study.

Simulated climatically disturbed emergence of agricultures in Western Eurasia 8500-3000 BC

Was the spread of agropastoralism from the Fertile Crescent throughout Europe influenced by rapid climatic shifts? We here generate idealized climate events using palaeoclimate records. In a mathematical model of regional sociocultural development, these events disturb the subsistence base of simulated forager and farmer societies. We evaluate the regional simulated transition timings and durations against a published large set of radiocarbon dates for western Eurasia; the model is able to realistically hindcast much of the inhomogeneous space-time evolution of regional Neolithic transitions. Our study shows that the inclusion of climate events improves the simulation of typical lags between cultural complexes, but that the overall difference to a model without climate events is not significant. Climate events may not have been as important for early sociocultural dynamics as endogenous factors.

World distribution of land cover changes, model in NetCDF format

The role of Pre- and Protohistoric anthropogenic land cover changes needs to be quantified i) to establish a baseline for comparison with current human impact on the environment and ii) to separate it from naturally occurring changes in our environment. Results are presented from the simple, adaptation-driven, spatially explicit Global Land Use and technological Evolution Simulator (GLUES) for pre-Bronze age demographic, technological and economic change. Using scaling parameters from the History Database of the Global Environment as well as GLUES-simulated population density and subsistence style, the land requirement for growing crops is estimated. The intrusion of cropland into potentially forested areas is translated into carbon loss due to deforestation with the dynamic global vegetation model VECODE. The land demand in important Prehistoric growth areas - converted from mostly forested areas - led to large-scale regional (country size) deforestation of up to 11% of the potential forest. In total, 29 Gt carbon were lost from global forests between 10 000 BC and 2000 BC and were replaced by crops; this value is consistent with other estimates of Prehistoric deforestation. The generation of realistic (agri-)cultural development trajectories at a regional resolution is a major strength of GLUES. Most of the pre-Bronze age deforestation is simulated in a broad farming belt from Central Europe via India to China. Regional carbon loss is, e.g., 5 Gt in Europe and the Mediterranean, 6 Gt on the Indian subcontinent, 18 Gt in East and Southeast Asia, or 2.3 Gt in subsaharan Africa.

(Table 2) Mercury and selenium concentration in the brain stem of wild polar bears (Ursus maritimus), east Greenland

Polar bears (Ursus maritimus) are exposed to high concentrations of mercury because they are apex predators in the Arctic ecosystem. Although mercury is a potent neurotoxic heavy metal, it is not known whether current exposures are of neurotoxicological concern to polar bears. We tested the hypotheses that polar bears accumulate levels of mercury in their brains that exceed the estimated lowest observable adverse effect level (20 µg/g dry wt) for mammalian wildlife and that such exposures are associated with subtle neurological damage, as determined by measuring neurochemical biomarkers previously shown to be disrupted by mercury in other high-trophic wildlife. Brain stem (medulla oblongata) tissues from 82 polar bears subsistence hunted in East Greenland were studied. Despite surprisingly low levels of mercury in the brain stem region (total mercury = 0.36 ± 0.12 µg/g dry wt), a significant negative correlation was measured between N-methyl-D-aspartate (NMDA) receptor levels and both total mercury (r = -0.34, p < 0.01) and methylmercury (r = -0.89, p < 0.05). No relationships were observed among mercury, selenium, and several other neurochemical biomarkers (dopamine-2, gamma-aminobutyric acid type A, muscarinic cholinergic, and nicotinic cholinergic receptors; cholinesterase and monoamine oxidase enzymes). These data show that East Greenland polar bears do not accumulate high levels of mercury in their brain stems. However, decreased levels of NMDA receptors could be one of the most sensitive indicators of mercury's subclinical and early effects.

Diffusion boundary layers ameliorate the negative effects of ocean acidification on the temperate coralline macroalga Arthrocardia corymbosa

Anthropogenically-modulated reductions in pH, termed ocean acidification, could pose a major threat to the physiological performance, stocks, and biodiversity of calcifiers and may devalue their ecosystem services. Recent debate has focussed on the need to develop approaches to arrest the potential negative impacts of ocean acidification on ecosystems dominated by calcareous organisms. In this study, we demonstrate the role of a discrete (i.e. diffusion) boundary layer (DBL), formed at the surface of some calcifying species under slow flows, in buffering them from the corrosive effects of low pH seawater. The coralline macroalga Arthrocardia corymbosa was grown in a multifactorial experiment with two mean pH levels (8.05 'ambient' and 7.65 a worst case 'ocean acidification' scenario projected for 2100), each with two levels of seawater flow (fast and slow, i.e. DBL thin or thick). Coralline algae grown under slow flows with thick DBLs (i.e., unstirred with regular replenishment of seawater to their surface) maintained net growth and calcification at pH 7.65 whereas those in higher flows with thin DBLs had net dissolution. Growth under ambient seawater pH (8.05) was not significantly different in thin and thick DBL treatments. No other measured diagnostic (recruit sizes and numbers, photosynthetic metrics, %C, %N, %MgCO3) responded to the effects of reduced seawater pH. Thus, flow conditions that promote the formation of thick DBLs, may enhance the subsistence of calcifiers by creating localised hydrodynamic conditions where metabolic activity ameliorates the negative impacts of ocean acidification.

(Table 1) Tagging date, total length and sex of bowhead whales (Balaena mysticetus) tagged at Point Barrow, Alaska

Working with subsistence whale hunters, we tagged 19 mostly immature bowhead whales (Balaena mysticetus) with satellite-linked transmitters between May 2006 and September 2008 and documented their movements in the Chukchi Sea from late August through December. From Point Barrow, Alaska, most whales moved west through the Chukchi Sea between 71° and 74° N latitude; nine whales crossed in six to nine days. Three whales returned to Point Barrow for 13 to 33 days, two after traveling 300 km west and one after traveling ~725 km west to Wrangel Island, Russia; two then crossed the Chukchi Sea again while the other was the only whale to travel south along the Alaskan side of the Chukchi Sea. Seven whales spent from one to 21 days near Wrangel Island before moving south to northern Chukotka. Whales spent an average of 59 days following the Chukotka coast southeastward. Kernel density analysis identified Point Barrow, Wrangel Island, and the northern coast of Chukotka as areas of greater use by bowhead whales that might be important for feeding. All whales traveled through a potential petroleum development area at least once. Most whales crossed the development area in less than a week; however, one whale remained there for 30 days.

Tab.1: Total estimated muskox numbers and quotas in management zones of the Northwest Territories and Nunavut

In view of the drastic growth in the Canadian Inuit population, the rising costs of living, the missing job and income alternatives and the high unemployment rate in the arctic, efforts are being made to make use of the muskox populations in order to provide additional sources of food and/or revenue. The present paper attempts to review the course of muskox utilization in the Canadian Arctic and to tentatively assess its present as weIl as its future economic importance. Starting with the pre-European status of muskoxen in Canada, the drastic reduction in numbers resulting from the combined efforts of hide traders, whalers and expedition parties in the 19th and early 20th centuries, the impact of the legal protection and the recovery since 1917 are being described. Establishing muskox farms with semi-domesticated herds failed in Canada in the 1970's. Since 1969, though, increasing numbers of animals have been allotted to many Inuit communities, and despite the fact that most of the animals were primarily used for subsistence purposes, some communities could reserve part of their quotas for trophy (sport) hunters. While controlled sustainable subsistence and trophy hunts may eventually be carried out over the whole muskox range, including recently colonized northern Quebec, commercial harvesting for meat, hides and wool, introduced in 1981, will at least for some time be restricted to Banks and Victoria islands which at present show 78 % of the Canadian muskox population and 94 % of the overall quota.

Prioritization of Policies: A Prototype Model of a Flowchart Method

This paper builds a prototype model of how to prioritize policies by using a flowchart. We presented the following six steps to decide priorities of policies: Step 1 is to attain the social subsistence level (primary education, health care, and food sufficiency); Step 2 is to attain macroeconomic stability; Step 3 is to liberalize the economy by structural adjustment programs; Step 4 is capacity building specific to a growth strategy by facilitating sufficient infrastructure (physical infrastructure and institutions); Step 5 is to initiate a growth strategy; and Step 6 is to narrow income inequalities. We illustrated the effectiveness of our "flowchart method" in case studies of Morocco, Laos, Vietnam, and China. The first priority of reforms in Morocco was given to social sectors of primary education and health care, particularly in the rural areas at Step 1. Laos should not put much emphasis on growth strategy before educational reform, attainment of macroeconomic stability, and institutional capacity building at Steps 1, 2, and 3. Vietnam can focus on reforming the state-run enterprises and developing the stock markets at Step 5 of growth strategies. We found that we should apply our flowchart method to China not nation-wide but province-wide.

Infrastructure (Rural Road) Development and Poverty Alleviation in Lao PDR

Rural road in Lao PDR defined as connecting road from village to main road, where it will lead them to market and access to other economic and social service facilities. However, due to mostly rural people accustom with subsistence farming, connecting road seems less important for rural people as their main farming produce is for own consumption rather than markets. After the introduction and implementation of New Economic Mechanism (NEM) since 1986, many rural villages have gradually developed and integrated into market system where people have significantly changed their livelihood with a better system. This progress has significantly contributed in improving income earning of people, better living standard and reduce poverty. The paper aims to illustrate the significant of rural road as connecting road from village to markets or a market access approach of farm produces. It also demonstrates through which approach, rural farmers/people could improve their income earning, develop their farming system, living standard and reduce poverty.

A VIOLÊNCIA CONTRA AS MULHERES NA VIDA COTIDIANA Um estudo do Livro da Aliança a partir de Êxodo 20,22-23,19

O espaço social subjacente à unidade literária de Êxodo 20,22-23,19 pressupõe uma sociedade agrária. Aparentemente é monótona, marcada por inúmeros conflitos sociais. O contexto social é de empobrecimento das famílias clânico-tribais israelitas. A nova economia se organiza em torno do santuário. Na pesquisa, há bastante consenso quanto à origem desta unidade literária conhecida como Livro da Aliança. É literatura jurídica de caráter religioso. Uma prescrição jurídica não precede as condições da realidade a que vai se referir, mas prescreve sobre as condições e situações já existentes. Na pesquisa clássica atual, encontram-se duas grandes correntes sobre a origem e a época desta literatura. Uma defende que o Livro da Aliança remonta à época pré-estatal, passagem do tribalismo para a monarquia; a outra argumenta que o Livro da Aliança, enquanto corpus codificado de leis, é um produto tardio , possivelmente surgido no final do século VIII ou início do século VII a.C. O Livro da Aliança é a base literária da presente pesquisa. Quanto à origem e à época do Livro da Aliança, sigo a corrente que defende ser o texto da época final do período tribal, anterior à monarquia. Esta época foi marcada por grandes mudanças econômicas: passagem de uma economia solidária de subsistência para uma economia de concentração do produto. A tese consiste em analisar a violência contra as mulheres, estruturada no discurso jurídico do Livro da Aliança. Busca-se desvendar os mecanismos que justificam e naturalizam as práticas de violência. O destaque é a violência contra as mulheres escravas, contra as filhas e, de modo especial, enfatizo as violências contra as mulheres feiticeiras. Evidencio três categorias de escravas prescritas no texto: as escravas domésticas, que sofrem violências físicas, podendo chegar até à morte debaixo do castigo da vara; as escravas temporárias, que têm seus olhos destruídos e os seus dentes quebrados; e as filhas que são vendidas como escravas. Sua sexualidade é transformada em mercadoria. Há filhas que são seduzidas, violadas e submetidas como mulher ao seu estuprador. O único grupo social descrito a partir da sua função pública são as feiticeiras. As violências são institucionais e sexistas. O patriarcado é o princípio organizador da sociedade. A característica do Livro da Aliança é marcadamente androcêntrica.(AU)

A VIOLÊNCIA CONTRA AS MULHERES NA VIDA COTIDIANA Um estudo do Livro da Aliança a partir de Êxodo 20,22-23,19

O espaço social subjacente à unidade literária de Êxodo 20,22-23,19 pressupõe uma sociedade agrária. Aparentemente é monótona, marcada por inúmeros conflitos sociais. O contexto social é de empobrecimento das famílias clânico-tribais israelitas. A nova economia se organiza em torno do santuário. Na pesquisa, há bastante consenso quanto à origem desta unidade literária conhecida como Livro da Aliança. É literatura jurídica de caráter religioso. Uma prescrição jurídica não precede as condições da realidade a que vai se referir, mas prescreve sobre as condições e situações já existentes. Na pesquisa clássica atual, encontram-se duas grandes correntes sobre a origem e a época desta literatura. Uma defende que o Livro da Aliança remonta à época pré-estatal, passagem do tribalismo para a monarquia; a outra argumenta que o Livro da Aliança, enquanto corpus codificado de leis, é um produto tardio , possivelmente surgido no final do século VIII ou início do século VII a.C. O Livro da Aliança é a base literária da presente pesquisa. Quanto à origem e à época do Livro da Aliança, sigo a corrente que defende ser o texto da época final do período tribal, anterior à monarquia. Esta época foi marcada por grandes mudanças econômicas: passagem de uma economia solidária de subsistência para uma economia de concentração do produto. A tese consiste em analisar a violência contra as mulheres, estruturada no discurso jurídico do Livro da Aliança. Busca-se desvendar os mecanismos que justificam e naturalizam as práticas de violência. O destaque é a violência contra as mulheres escravas, contra as filhas e, de modo especial, enfatizo as violências contra as mulheres feiticeiras. Evidencio três categorias de escravas prescritas no texto: as escravas domésticas, que sofrem violências físicas, podendo chegar até à morte debaixo do castigo da vara; as escravas temporárias, que têm seus olhos destruídos e os seus dentes quebrados; e as filhas que são vendidas como escravas. Sua sexualidade é transformada em mercadoria. Há filhas que são seduzidas, violadas e submetidas como mulher ao seu estuprador. O único grupo social descrito a partir da sua função pública são as feiticeiras. As violências são institucionais e sexistas. O patriarcado é o princípio organizador da sociedade. A característica do Livro da Aliança é marcadamente androcêntrica.(AU)