277 resultados para 60s
Resumo:
This thesis is focussed on the role differentiationhypothesis as it relates to small groups (Bales, 1958). The hypothesis is systematically examined, both conceptually and empirically, in the light of the Equilibrium Hypothesis (Bales, 1953) and the Negotiated Order Theory of leadership (e.g. Hosking, 1988). Chapter 1 sketches in a context for the research,which was stimulated by attempts during the 60s and 70s to organise small groups without leaders (the leaderless group, based on isocratic principles). Chapter 2 gives a conceptual and developmental overview of Bales' work, concentrating on the Equilibrium Hypothesis. It is argued that Bales' conceptual approach, if developed, can potentially integrate the disparate small groups and leadership literatures. Chapters 3 and 4 examine the concepts `group', `leader' and `leadership' in terms of the Negotiated Order perspective. In chapter 3 it is argued that two aspects of the concept group need to be taken separately into account; physical attributes and social psychological aspects (the metaphysical glue). It is further argued that a collection of people becomes a group only when they begin to establish a shared sense of social order. In chapter 4 it is argued that leadership is best viewed as a process of negotiation between those who influence and those who are influenced, in the context of shared values about means and ends. It is further argued that leadership is the process by which a shared sense of social order is established and maintained, thus linking the concepts `leadership' and `group' in a single formulation. The correspondences with Bales' approach are discussed at the end of the chapter. Chapters 5 to 8 present a detailed critical description and evaluation of the empirical work which claims to show role differentiation or test the hypothesis, both Bales original work and subsequent studies. It is argued here, that the measurement and analytical procedures adopted by Bales and others, in particular the use of simple means as summaries of group structures, are fundamentally flawed, and that role differentiation in relation to particular identifiable groups has not been demonstrated clearly anywhere in the literature. Chapters 9 to 13 present the empirical work conducted for the thesis. 18 small groups are examined systematically for evidence of role differentiation using an approach based on early sociometry (Moreno, 1934). The results suggest that role differentiation, as described by Bales, does not occur as often as is implied in the literature, and not equivocally in any case. In particular structures derived from Liking are typically distributed or weak. This suggests that one of Bales' principal findings, that Liking varies independently of his other main dimensions, is the product of statistical artifact. Chapter 14 presents a general summary of results and presents some considerations about future research.
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The aim of this study was to establish levels of the enzymes involved in tetrahydrobiopterin (BH4) metabolism in human and rat brain preparations; to determine whether BH4 metabolism is altered in dementia, particularly in relation to senile dementia of the Alzheimer type (SDAT); and to examine the effect of aluminium on BH4 metabolism. Overall BH4 synthesis and dihydropteridine reductase (DHPR) activity were greater in the locus coeruleus than in the neocortex of elderly subjects. Sepiapterin reductase and DHPR activity showed a linear correlation with age in the temporal cortex. DHPR activity in the frontal cortex was relatively constant until the mid 60s and then fell with age. Overall BH4 synthesis showed a non-significant decline in temporal cortex and was significantly reduced in locus coeruleus preparations from SDAT subjects compared to control subjects. As DHPR, sepiapterin reductase and GTP cyclohydrolase activity were unaltered in SDAT we suggested that there is a lesion on the biosynthetic pathway between dihydroneopterin in triphosphate and BH4 in SDAT, possibly at the level of 6-pyruvoyl tetrahydropterin synthase. DHPR activity and BH4 synthesis capacity were unaltered in temporal cortex preparations from Huntingdon's disease subjects indicating that the defect in BH4 metabolism in SDAT is specific to the disease process and not a secondary consequence of dementia. The implications of altered BH4 metabolism in ageing and dementia are discussed. BH4 metabolism was examined in temporal and frontal cortex preparations from 4 subjects who had received peritoneal dialysis treatment. All patients had elevated serum aluminium levels. The data suggests that aluminium may inhibit DHPR activity in the frontal cortex resulting in diminished BH4 levels in the cells which leads to a compensatory increase in the activity of the biosynthetic pathway. Aluminium reversibly inhibited sepiapterin reductase activity in rat brain preparations but did not alter sepiapterin reductase activity in vivo. Overall BH4 synthesis and OTP cyclohydrolase activity were not affected by aluminium in vitro. The biosynthetic pathway was unaltered in rat brain preparations from animals receiving aluminium orally compared to control animals. DHPR activity was unaltered or increased in rat brain preparations from aluminium treated rats compared to the control group.
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The paper presents the main results of an ongoing project aimed at the development of technologies for digitization of Bulgarian folk music and building a heterogeneous digital library with Bulgarian folk songs presented with their music, notes and text. An initial digitization and preservation of the Bulgarian cultural heritage starts by means of digitization and insertion into the library of over 1000 songs that were recorded and written down during the 60s and 70s of XX century. Also we present a full text search engine in a collection of lyrics (text of songs) and coded notes (symbolic melody). Some perspectives for future projects are also discussed.
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This dataset contains the collection of available published paired Uk'37 and Tex86 records spanning multi-millennial to multi-million year time scales, as well as a collection of Mg/Ca-derived temperatures measured in parallel on surface and subsurface dwelling foraminifera, both used in the analyses of Ho and Laepple, Nature Geoscience 2016. As the signal-to-noise ratios of proxy-derived Holocene temperatures are relatively low, we selected records that contain at least the last deglaciation (oldest sample >18kyr BP).
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Bipolar disorder is characterized by mood impairment, alternating between mania/hypomania and depression, and its exact pathophysiology is already unknown. The treatment of bipolar disorder is based on prevention of the manic and depressive episodes using mood stabilizers. Nociceptin/orfanin FQ (N/OFQ) is an endogenous heptadecapeptide which binds as an agonist to NOP receptor, which is a G-coupled inhibitory receptor. N/OFQ and its receptor modulate a lot of functions in the organism, including emotional processes. It is known that the plasmatic concentration of N/OFQ is altered in patients in both phases depressive and manic of bipolar disorder and it is assumed that this system has a role on the etiology of this disorder. Concerning mania, the animal models used in research tend to focus in an unique aspect of the manic behavior, as hyperactivity or agressivity. In the 60’s, the hole board test was proposed, and it consists of an apparatus with holes where a behavior known as head-dippings is measured. High levels of head-dippings are suggestive of neophilia, while low levels can be characteristic of an anxious-like behavior. As the increase of exploratory and goal-directed behavior are characteristics of manic behavior, this test could help in mania research. Thus, this work was organized in 3 steps and aims to: (1) investigate the induction of a manic-like state promoted by ouabain, a Na+/K+-ATPase inhibitor, in the mouse open field test; (2) set up the hole board as a test to measure manic-like behaviors; and (3) investigate the N/OFQ effects in prevention of this kind of behavior on hole board. Male Swiss mice were used in this study, and they take part of only one of the described steps. Depending on the step performed, mice received one or more of the following treatments: (1) ouabain 10-6 , 10-5 , 10-4 , 10-3 or 10-2 M, intracerebroventricular (icv); (2) sodium valproate 300 mg/kg, intraperitoneal (ip); (3) sodium valproate 400 mg/kg, ip; (4) diazepam 1 mg/kg, ip; (5) methylphenidate 10 mg/kg, ip; and (6) N/OFQ 0,1 or 1 nmol, icv. The results suggest that hole board can be used to evaluate a manic state, through analysis of different animal behaviors. However, it was not possible to standard the model of Na+ /K+ -ATPase dysfunction through ouabain administration in mice. Moreover, the data suggest that N/OFQ, at the doses tested, has not affected the methylphenidate-induced mania-like behavior. Taken together, the results point to a new approach of manic research, through the hole board using. However, more studies are necessary in order to verify the role of N/OFQ system on bipolar disorder.
Resumo:
ACKNOWLEDGEMENTS The authors would like to thank Bruce Mann of Aberdeenshire Council Archaeology Service for his support throughout and for funding Area F and Historic Scotland for granting SMC for the excavation of Area A. Thanks are due to the tenant farmer Allan Adams and to Helen Rickwood, Jan Dunbar, Colin Mitchell, Sheila Young, Emma Gibson, Veronica Ross, Irvine Ross, Brian Dewar and Sheila Duthie for their work on site. We are grateful to Ian Cameron for help in gathering oral history of some of the crosses found in the 1950s/60s. John Borland, Katherine Forsyth, Simon Taylor and Ross Trench-Jellicoe have provided valuable comments on the sculpture. We would like to thank Invercauld Estate for access to their archive and permission to photograph and reproduce the Scroll Plan, and their honorary archivist, Sheila Sedgwick for her help and patience. We are grateful to Nigel Trewin for identification of the geology of the crosses. The drawings of Tullich 16 and 17 are by Jan Dunbar.
Resumo:
Quién Es, Quién Somos? Spic’ing into Existence claims a four-fold close-reading: first, analysis of texts: from theoretical meditations to (prison) memoir and film. Second, a half dozen central figures appear, largely Latinx and black American. They cut across a score of registers, socio-economics, ideological reservations, but all are, as Carl Carlton sang, poetry in motion. Writers, poets, theologians, pathologists, artists, comedians, actors, students whose vocation is invocation, the inner surge of their calling. Third, the manuscript draws from a series of historical moments—from radical liberation of the late 60s, to contemporary student activism. Finally, this body of work is movement, in all its social, gestural, and kinesthetic viscera. From this last heading, we peel away layers of what I call the ethnopoet, the fascia undoing that reveals its bio-political anatomy, dressing its bare life with kinship speech. First, the social revolutions of the Civil Rights, Black Power, abolitionism, the Black Panthers and Young Lords, boycotts and jarring artistic performances. These events are superficial not in vain sense, but key epicenters of underground murmurings, the workings of a cunning assailant. She robs not lavish estates, but another day to breathe. Gesturally, as perhaps the interlocutor, lies this author, interspersing his own diatribes to conjure her presence. The final branch is admittedly the most intangible. Kinesthetically, we map the nimbleness, footwork lígera of what I call the ethnopoet. Ethnopoet is no mere aggregate of ethnicity and poetry, but like chemical reaction, the descriptor for its behavior under certain pressures, temperatures, and elements. Elusive and resisting confinement, and therefore definition, the ethnopoet is a shapeshifting figure of how racialized bodies [people of color] respond to hegemonic powers. She is, at bottom, however, a native translator, the plural-lensed subject whose loyalty is only to the imagination of a different world, one whose survival is not contingent upon her exploitation. The native translator’s constant re-calibrations of oppressive power apparatuses seem taxing at best, and near-impossible, at worst. To effectively navigate through these polarized loci, she must identify ideologies that in turn seek “affective liberatory sances” in relation to the dominant social order (43). In a kind of performative contradiction, she must marshall the knowledge necessary to “break with ideology” while speaking within it. Chicana Studies scholar, Chela Sandoval, describes this dual movement as “meta-ideologizing”: the appropriation of hegemonic ideological forms in order to transform them (82). Nuestros padres se subieron encima de La Bestia, y por eso somos pasageros a ese tren. Y ya, dentro su pansa, tenemos que ser vigilantes cuando plantamos las bombas. In Methodology of the Oppressed, Sandoval schematizes this oppositional consciousness around five principle categories: “equal rights,” “revolutionary,” “supremacist,” “separatist,” and “differential.” Taken by themselves, the first four modes appear mutually exclusive, incapable of occupying the same plane, until a fifth pillar emerges. Cinematographic in nature, differential consciousness, as Sandoval defines it, is “a kinetic motion that maneuvers, poetically transfigures, and orchestrates while demanding alienation, perversion, and reformation in both spectators and practitioners” (44). For Sandoval, then, differential consciousness is a methodology that privileges an incredible sense mobility, one reaching artistic sensibilities. Our fourth and final analytic of movement serves an apt example of this dual meaning. Lexically speaking, ‘movement’ may be regarded as a political mobilization of aggrieved populations (through sustained efforts), or the process of moving objects (people or otherwise) from one location to another. Praxis-wise, it is both action and ideal, content and form. Thus, an ethnic poetics must be regarded less as a series of stanzas, shortened lyric, or even arrangement of language, but as a lens through which peripheralized peoples kaleidecope ideological positions in an “original, eccentric, and queer sight” (43). Taking note of the advantages of postponing identifications, the thesis stands its ground on the term ethnopoet. Its abstraction is not dewey-eyed philosophy, but an anticipation of poetic justice, of what’s to come from callused hands. This thesis is divided into 7.5 chapters. The first maps out the ethnopoet’s cartographies of struggle. By revisiting that alleged Tío Tomas, Richard Rodriguez, we unearth the tensions that negatively, deny citizenship to one silo, but on the flipside, engender manifold ways of seeing, hearing, and moving . The second, through George Jackson’s prison memoirs, pans out from this ethnography of power, groping for an apparatus that feigns an impervious prestige: ‘the aesthetic regime of coercion.’ In half-way cut, the thesis sidesteps to spic into existence, formally announcing, through Aime Cesaire, myself, and Pedro Pietri, the poeticization of trauma. Such uplift denies New Age transcendence of self, but a rehearsal of our entrapment in these mortal envelopes. Thirdly, conscious of the bleeding ethnic body, we cut open the incipient corpse to observe her pathologist. Her native autopsies offer the ethnic body’s posthumous recognition, the ethnopoetics ability to speak for and through the dead. Chapter five examines prolific black artists—Beyonce and Kendrick Lamar—to elide the circumvention of their consumption via invoking radical black hi/her-stories, ones fragmenting the black body. Sixth, the paper compares the Black Power Salute of the 1968 Mexico City Olympics to Duke’s Mi Gente Boycott of their Latino Student Recruitment Weekend. Both wielded “silent gestures,” that shrewdly interfered with white noise of numbed negligence. Finally, ‘taking the mask off’ that are her functionalities, the CODA expounds on ethnopoet’s interiority, particularly after the rapid re-calibration of her politics. Through a rerun of El Chavo del Ocho, one of Mexican television’s most cherished shows, we tune into the heart-breaking indigence of barrio residents, only to marvel at the power of humor to, as Friday’s John Witherspoon put it, “fight another day.” This thesis is the tip of my tongue. Y por una vez, déjala que cante.
Resumo:
We provide a new multivariate calibration-function based on South Atlantic modern assemblages of planktonic foraminifera and atlas water column parameters from the Antarctic Circumpolar Current to the Subtropical Gyre and tropical warm waters (i.e., 60°S to 0°S). Therefore, we used a dataset with the abundance pattern of 35 taxonomic groups of planktonic foraminifera in 141 surface sediment samples. Five factors were taken into consideration for the analysis, which account for 93% of the total variance of the original data representing the regional main oceanographic fronts. The new calibration-function F141-35-5 enables the reconstruction of Late Quaternary summer and winter sea-surface temperatures with a statistical error of ~0.5°C. Our function was verified by its application to a sediment core extracted from the western South Atlantic. The downcore reconstruction shows negative anomalies in sea-surface temperatures during the early-mid Holocene and temperatures within the range of modern values during the late Holocene. This pattern is consistent with available reconstructions.
Seawater carbonate chemistry and calcification during an experiment with a coral Porites lutea, 2004
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Using living corals collected from Okinawan coral reefs, laboratory experiments were performed to investigate the relationship between coral calcification and aragonite saturation state (W) of seawater at 25?C. Calcification rate of a massive coral Porites lutea cultured in a beaker showed a linear increase with increasing Waragonite values (1.08-7.77) of seawater. The increasing trend of calcification rate (c) for W is expressed as an equation, c = aW + b (a, b: constants). When W was larger than ~4, the coral samples calcified during nighttime, indicating an evidence of dark calcification. This study strongly suggests that calcification of Porites lutea depends on W of ambient seawater. A decrease in saturation state of seawater due to increased pCO2 may decrease reef-building capacity of corals through reducing calcification rate of corals.
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Economic policy-making has long been more integrated than social policy-making in part because the statistics and much of the analysis that supports economic policy are based on a common conceptual framework – the system of national accounts. People interested in economic analysis and economic policy share a common language of communication, one that includes both concepts and numbers. This paper examines early attempts to develop a system of social statistics that would mirror the system of national accounts, particular the work on the development of social accounts that took place mainly in the 60s and 70s. It explores the reasons why these early initiatives failed but argues that the preconditions now exist to develop a new conceptual framework to support integrated social statistics – and hence a more coherent, effective social policy. Optimism is warranted for two reasons. First, we can make use of the radical transformation that has taken place in information technology both in processing data and in providing wide access to the knowledge that can flow from the data. Second, the conditions exist to begin to shift away from the straight jacket of government-centric social statistics, with its implicit assumption that governments must be the primary actors in finding solutions to social problems. By supporting the decision-making of all the players (particularly individual citizens) who affect social trends and outcomes, we can start to move beyond the sterile, ideological discussions that have dominated much social discourse in the past and begin to build social systems and structures that evolve, almost automatically, based on empirical evidence of ‘what works best for whom’. The paper describes a Canadian approach to developing a framework, or common language, to support the evolution of an integrated, citizen-centric system of social statistics and social analysis. This language supports the traditional social policy that we have today; nothing is lost. However, it also supports a quite different social policy world, one where individual citizens and families (not governments) are seen as the central players – a more empirically-driven world that we have referred to as the ‘enabling society’.
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This thesis examines the rise and decline of the New Left in Toronto from 1958 to 1985. It argues that New Leftism — whose three leading ideals were self-management, national liberation, and community — arose as much from the Old Left as it did from the peace movement. In contrast to earlier readings that interpret the New Left narrowly — essentially, as the combined forces of the white student and peace movements evident mainly on university campuses — this thesis documents the extent to which New Leftism, interpreted as a political formation, provided a framework for a diversity of radical social movements, especially feminism, Black Power, gay liberation, resistance to the capitalist redevelopment of the city, and transnational solidarity. It also questions a declensionist narrative that adopts a “decadal” approach to the radicalism of the sixties, according to which 1970 spelled the end of “60s” radicalism. Quite the contrary, this thesis argues: in Toronto, it would be truer to say that 1970s were “the sixties,” in that only in this later decade did many New Left movements attain their full maturity. New Leftists successfully challenged a host of institutions, sometimes with permanent effects. The educational system was transformed. Cultural institutions and practices were revolutionized. Questions of race and gender, once peripheral to the left, were made central to it. Democratic community institutions became far more powerful. A token of the strength and durability of the New Left in Toronto was the extent to which it remained the bête noir of a series of other radical groups upholding the model of the vanguard communist party — which challenged the New Leftists’ prominence but many members of which often wound up agreeing with their positions. It was only in the early 1980s, with the ascent of a new right, that Toronto’s New Left unmistakably entered a period of decline. Yet, even then, many of its key themes were picked up by fast-growing anarchist and socialist feminist currents. Far from constituting a minor phenomenon, Toronto’s New Left, one of the largest movements for social justice in Canadian history, bequeathed to its progressive successors an imposing legacy of struggle and cultural achievements. It is the purpose of this thesis to evaluate, both critically and sympathetically, the extent to which the New Left attained its radical ambition.
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Este trabalho analisa as políticas de ação social escolar no ensino superior público a partir da década de 60, nomeadamente na atribuição de bolsas de estudo a estudantes da Universidade de Coimbra. Analisa ainda as alterações que estas políticas têm vindo a sofrer ao longo dos anos e a sua relação com o direito ao ensino e igualdade de oportunidades de acesso e êxito escolar consagrado na Constituição Portuguesa. O Serviço Social tem uma intervenção relevante nos Serviços de Ação Social da Universidade de Coimbra, em várias áreas, praticamente desde a sua criação. Neste trabalho, a análise das práticas do Serviço Social centra-se na atribuição de bolsas de estudo, nos últimos 10 anos. Trata-se de um estudo exploratório realizado com base em pesquisa bibliográfica e documental. Outra fonte de recolha de informação foi a entrevista, realizada à Assistente Social, e Responsável pelo Serviço de Bolsas entre 1978 e 2012, Dra. Elisa Decq Motta. As alterações às políticas de ação social no que se refere à atribuição de bolsas de estudo, relacionadas com o cálculo dos rendimentos ou com as condições de elegibilidade, têm vindo a pôr em causa o direito à igualdade de oportunidades dos estudantes, no acesso e na permanência no ensino superior. Muitos deles, economicamente carenciados, estão a ficar de fora do sistema de ação social no ensino superior em virtude destas alterações. É preocupação dos Serviços de Ação Social da Universidade de Coimbra a regressão a que se tem vindo a assistir, e as suas consequências para os estudantes do ensino superior, pelo que é urgente inverter este caminho. / This study analyses the academic social policies in the high-level educational institutions since the 60’s, namely in the allocation of scholarships to students from the University of Coimbra. Furthermore, the changes that such policies have been suffering over the last years, and their relationship with the right to education and equal opportunities to the access and scholar success that every citizen has, as stated by the Portuguese Constitution, are also examined. Since its establishment, the Social Service is a relevant area of the Social Services of the University of Coimbra, in several areas. The analyses present in this study will focus on the last 10 years, specifically on the scholarships allocation. This study is based on literature and documents research, as well as on an interview to the Social Worker responsible for the Scholarships Service from 1978 to 2012, Dra. Elisa Decq Motta. The social policies changes related with the scholarships assignment, especially those associated with the income assessment and eligibility conditions are serious hindrances to the right of equal admission opportunity and maintenance in higher education that all students have. Due to these changes, several students with financial issues are not supported by the social service in higher education. The observed changes, and its consequences for students are a matter of concern for the Social Services of University of Coimbra. It is imperative to revert the current situation.
Resumo:
Dozens of high school bands from all over the state of Ohio played on opening day at Cedar Point in 1969. They were an opening day tradition in the 60s and 70s. This photograph also shows the Wild Mouse coaster, the refurbished Coliseum, the Sky Ride, as well as the concrete Midway.
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O concelho de Montemor-o-Novo é rico em vestígios arqueológicos de várias cronologias, pelo que a época romana não é excepção. Durante muito tempo pouco se conhecia deste período cronológico, particularmente a forma do seu povoamento. Durante os anos 60 do século XX, foram identificadas e escavadas algumas estruturas deste período, nomeadamente a Fonte do Prior, o Curral dos Cães e o Cabeço do Ceivo. No entanto, foi durante as obras da Barragem dos Minutos que começamos a ter uma nova perceção de como seria o povoamento romano neste território. Sítios como estes têm vindo, ao longo do tempo, a ser colocados de parte quando se falava sobre a romanização dos campos por se considerar que essa ocupação era exclusiva das luxuosas villae e por se pensar que estes sítios fariam parte das villae. Neste trabalho iremos ver o resultado das intervenções realizados na Barragem dos Minutos, bem como as realizadas no regolfo da Barragem de Alqueva com o objectivo de tentar perceber estas novas realidades do povoamento romano; Abstract: The Montemor-o-Novo municipality is rich in archaeological remains of various chronologies, so the Roman era is no exception. But for a long time little was known of this chronological period and especially the shape of your settlement. During the 60s of the twentieth century, they have been identified and excavated some structures of this period, namely the Fonte do Prior, the Curral dos Cães and the Cabeço Ceivo. But it was during the construction of the dam of Minutos we started to have a new perception of how would the Roman settlement in this territory. Sites like these have been, over time, to be put aside when talking about the romanization of the fields in Roman times as it was considered that this occupation was exclusive of villae luxurious and think that these sites would be part of the villae. In this work we will see the result of the work done at the dam of the Minutos, as well as the work carried out in the surroundings of the Alqueva Dam and try to understand these new realities of the Roman settlement.