1,440 research outputs found
An Examination of the Emergence of the Queer Figure in North American Culture Using a Queer Marxist Theoretical Framework
This thesis develops a new sociological perspective entitled “Queer Marxism,” a neo Marxist perspective on gender identity, gender expression, and gender oppression that incorporates Judith Butler’s queer perspective of gender performativity. Using this Queer Marxist framework, this thesis will identify an existing tension, due to emerging contradictions within the North American capitalist structure, between the current realities of gendered bodies and the dominant gender binary ideology of North American society. In reflecting on this tension, this project will argue that non-normative genders (and sexualities) are gaining more recognition and validation at a cultural level which, in turn, serves to only further contradict the hegemonic presence of the gender binary ideology that is upheld by the dominant socio-political and economic structures of North America society. As a result, the cultural forces of gender based domination and subordination that support the relations of capital have begun to destabilize, diversifying gender performativity as a consequence
Rede de cooperação no êxito de iniciativas voltadas para a utilização de composto orgânico na produção de hortaliças por pequenos agricultores em Camaçari-Ba.
Este trabalho apresenta resultados da interação da pesquisa e da extensão na avaliação do efeito de composto orgânico no beneficiamento de solos agrícolas, instrumentalização de agricultores a pratica da agricultura orgânica e a valorização de produtos orgânicos. O trabalho foi desenvolvido em sistema de rede de cooperação com participação de instituições publicas, privadas, desenvolvimento de pesquisa de mestrado, alunos de graduação e pequenos agricultores. A rede busca a preservação do patrimônio ambiental através do reaproveitamento de lixo orgânico e o beneficiamento de solos com composto orgânico. A pesquisa de mestrado avaliou efeitos do composto na produção de hortaliças empregando-se indicadores de sustentabilidade. A disciplina da graduação desenvolve atividades praticas com cunho socioambiental. O experimento cientifico foi realizado na propriedade dos agricultores que acompanharam o efeito do composto proveniente de resíduos orgânicos no incremento da produção de hortaliças. Os resultados alcançados com este trabalho mostram a importância do sistema de rede de cooperação na integração da pesquisa e da extensão
Cissampelos sympodialis (Menispermaceae): A Novel Phytotherapic Weapon Against Allergic Diseases?
A BODIPY derivative for selective fluorescent chemosensing of iron (III)
A BODIPY derivative functionalized with a phenyl group at the meso-position was synthesized and characterized through 1H NMR and UV–Vis absorption/emission spectroscopies. The compound showed an absorption band at 497 nm and a fluorescence band at 513 nm, with a ΦF = 0.68 in acetonitrile. The evaluation of the chemosensing ability of the BODIPY was investigated in the presence of several ions with environmental and biomedical relevance. A highly selective fluorimetric response was observed for Fe3+ through fluorescence quenching upon successive additions of this cation.The authors acknowledge Fundação para a Ciência e Tecnologia—FCT (Portugal) for funding through CQUM (UID/QUI/00686/2020) and a PhD grant to R.C.R. Gonçalves (SFRH/BD/05278/2020). The NMR spectrometer Bruker Avance III 400 is part of the National NMR Network and was purchased within the framework of the National Program for Scientific Re-equipment, contract REDE/1517/RMN/2005 with funds from POCI 2010 (FEDER) and FCT
Antisymmetric Tensor Fields in Randall Sundrum Thick Branes
In this article we study the issue of localization of the three-form field in
a Randall-Sundrum-like scenario. We simulate our membrane by kinks embedded in
D=5, describing the usual case (not deformed) and new models coming from a
specific deformation procedure. The gravitational background regarded includes
the dilaton contribution. We show that we can only localize the zero-mode of
this field for a specific range of the dilaton coupling, even in the deformed
case. A study about resonances is presented. We use a numerical approach for
calculations of the transmission coefficients associated to the quantum
mechanical problem. This gives a clear description of the physics involved in
the model. We find in this way that the appearance of resonances is strongly
dependent on the coupling constant. We study the cases and 5 for
and . The first value of give us one
resonance peak for and no resonances for . The second value of
give us a very rich structure of resonances, with number deppending on
the value of .Comment: 7 pages, 3 figure
OC-0051: GU outcomes & toxicity 5 years after protons for low- & intermediate-risk prostate cancer: Two prospective trials
Avaliação da qualidade de matérias-primas de ruibarbo utilizadas em formulações farmacêuticas
As plantas denominadas de ruibarbo sintetizam antraquinonas e taninos, que são responsáveis pelos efeitos laxante e adstringente, respectivamente. Análises da qualidade de cinco matérias-primas de ruibarbo foram realizadas a fim de detectar adulterações. As reações para antraquinonas e taninos foram positivas. Os constituintes rapônticos foram observados na amostra de Rheum palmatum (2). As medidas de cinzas totais para Rheum palmatum (2) e Ferraria cathartica estão acima do esperado. Conforme resultados, as amostras de Rheum palmatum (2) e Ferraria cathartica devem estar adulteradas
Convergence of the critical attractor of dissipative maps: Log-periodic oscillations, fractality and nonextensivity
For a family of logistic-like maps, we investigate the rate of convergence to
the critical attractor when an ensemble of initial conditions is uniformly
spread over the entire phase space. We found that the phase space volume
occupied by the ensemble W(t) depicts a power-law decay with log-periodic
oscillations reflecting the multifractal character of the critical attractor.
We explore the parametric dependence of the power-law exponent and the
amplitude of the log-periodic oscillations with the attractor's fractal
dimension governed by the inflexion of the map near its extremal point.
Further, we investigate the temporal evolution of W(t) for the circle map whose
critical attractor is dense. In this case, we found W(t) to exhibit a rich
pattern with a slow logarithmic decay of the lower bounds. These results are
discussed in the context of nonextensive Tsallis entropies.Comment: 8 pages and 8 fig
Clinical changes in cats submitted to experimental hyperthyroidism
A relação do hipertireoidismo experimental com parâmetros clínicos foi avaliada em
gatos machos e fêmeas, intactos e mantidos em estado hipertireóideo por um período de 42 dias.
Os parâmetros estudados foram consumo diário de água e ração, débito urinário, o volume fecal,
peso corporal, temperatura corporal, coloração de membranas mucosas, palpação de linfonodos
superficiais, palpação da glândula tireóide, pulso femoral, auscultação cardíaca e respiratória,
freqüência cardíaca e respiratória e palpação abdominal. Correlacionou-se as variáveis com os
níveis de T3 total, T4 livre e total. O excesso dos hormônios tireoidianos acompanhou aumento da
freqüência cardíaca, polifagia, polidipsia, perda de peso e aumento do volume fecal nos gatos
estudados.The interrelation between experimental hyperthyroidism andclinical changes was
studied in adult intact cats kept under hyperthyroidic state for 42 days. Clinical aspects evaluated
were dairy food and water intake, urine output and fecal volume, body weight, temperature,
mucous membranes colour, palpable lymphnodes, thyroid gland palpation, abdominal palpation,
and cardiac and respiratory frequencies. These characteristics were correlated with free and
total T4 and total T3 serum concentrations. Excessive circulant thyroid hormone levels resulted
in increased cardiac frequency, polyuria, polidipsia, weight loss and increased fecal volume in
the studied cats
Morphological and microstructural characterization of laser-glazedplasma-sprayed thermal barrier coatings
Laser glazing has been revealing a high potential for the improvement of plasma-sprayed (PS) thermal barrier coatings (TBCs) by
reducing surface roughness, eliminating open porosity on the surface and generating a controlled segmented crack network, although the
relationship of the processing parameters with the resultant properties has not yet been completely established. In this investigation, TBCs
consisting of atmospheric plasma-sprayed (APS) ZrO2–8wt.%Y2O3 were subjected to a CO2 continuous wave laser-glazing process in
order to seal its surface porosity, generating an external dense layer. For that purpose, different amounts of radiation resulting from different
scanning speeds were applied to the specimens as well as different track overlapping. Results have shown a significant decrease of the
surface roughness after the laser treatment. All specimens presented a fully dense and porous free external layer with a polyfaceted
columnar microstructure highly adherent to the plasma-sprayed coating. Controlled surface crack networks, extremely dependent on the
laser scanning speed and track overlapping, were achieved for each set of processing parameters. The cracks were found to have a
tendency to be oriented in two perpendicular directions, one in the direction of the laser-beam travel direction, the other perpendicular to it.
Moreover, the cracks parallel to the beam travel direction are found to be on the overlapping zone, coinciding with the edge of the
subsequent track. The cracks are perpendicular to the surface along the densified layer and tend to branch and deviate from the vertical
direction below it, within the porous PS coating. XRD results revealed mainly tV nontransformable tetragonal zirconia with a small
percentage of residual monoclinic zirconia for the as-sprayed coating. All glazed coatings presented only tV nontransformable tetragonal
zirconia with some variations on preferable crystal orientation. Grain sizes varied from 26 to 52 nm, increasing with an increase of laserirradiated
energy; microstrain behaved inversely.Fundação para a Ciência e a Tecnologia (FCT) - Project POCTI/CTM/44590/2002.União Europeia (UE). Fundo Europeu de Desenvolvimento Regional (FEDER)
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