Abstract For Paul Gilroy, Henry Louis Gates Jr. and others, Raymond Williams embraced notions of cultural authenticity and ethnic continuity compatible with the racisms of the Right. This influential critique is based on a fundamental misreading of Williams’ position. This text explores notions of identity in Williams’ criticism and novels to offer an alternative reading. Although often dismissed as a white, male, English critic, and a member of the dominant sector within British society, Williams was in fact Welsh and meditated throughout his life on the meaning of that identity. He never endorsed forms of British superiority and exceptionalism, since he noted explicitly in Politics and Letters (1979) that he never considered himself to be British. Furthermore, Williams consistently rejected racial and blood-based forms of identity and emphasized how his marginal formation on the Wales-England border led to an awareness of the always evolving and historically contingent nature of communal identification.

Resumo Segundo Paul Gilroy, Henry Louis Gates Jr., entre outros, Raymond Williams teria abraçado noções de autenticidade cultural e continuidade étnica comparáveis aos racismos da direita. Essa crítica influente se baseia em uma má interpretação da posição de Williams. O presente texto explora noções de identidade na crítica e nos romances de Williams para oferecer uma leitura alternativa. Embora frequentemente dispensado como um crítico inglês, branco, homem e membro do setor dominante da Grã-Bretanha, Williams era de fato galês e meditou ao longo de sua vida a respeito do significado dessa identidade. Jamais apoiou formas de superioridade ou excepcionalismo britânico, já que pontuou explicitamente em Politics and Letters (1979) que nunca se considerou britânico. Ademais, Williams rejeitou consistentemente formas de identidade racial e sanguíneas e enfatizou como sua formação marginal na fronteira País de Gales-Inglaterra o levou a uma conscientização do carácter sempre em evolução e historicamente contingente da identificação comunitária.

Divorce is one of the most stressful life events a person can face and it often has adverse consequences. Social work services are of critical importance in enhancing the wellbeing of divorced persons and improving their relationships with their significant others. A qualitative research study was conducted to develop an in-depth understanding of the nature of social work services to divorced persons and the divorced persons' suggestions regarding social work services. This paper reports the findings, conclusions and recommendations based on interviews conducted with divorced South African men and women from different ethnic groups with the purpose of enhancing the wellbeing of divorced persons through social work services.

The impetus to decolonise high schools and universities has been gaining momentum in Southern locations such as South Africa and Australia. In this article, we use a polyvocal approach, juxtaposing different creative and scholarly voices, to argue that poetry offers a range of generative possibilities for the decolonisation of high school and university curricula. Australian First Nations' poetry has been at the forefront of the Indigenous political protest movement for land rights, recognition, justice and Treaty since the British settlement/invasion. Poetry has provided Aboriginal and Torres Strait Islander peoples with a powerful vehicle for speaking back to colonial power. In this article, a team of Indigenous and non-Indigenous researchers argue that poetry can be a powerful vehicle for Indigenous voices and Knowledges. We suggest that poetry can create spaces for deep listening (dadirri), and that listening with the heart can promote truth-telling and build connections between First Nations and white settler communities. These decolonising efforts underpin the "Wandiny (gathering together)-Listen with the Heart: Uniting Nations through Poetry" research that we discuss in this article. We model our call-and-response methodology by including the poetry of our co-author and Aboriginal Elder of the Kungarakan people in the Northern Territory, Aunty Sue Stanton, with poetic responses by some of her co-authors.

ABSTRACT. Metal concentrations in suspended sediments of one of the most polluted rivers in Brazil were measured. Concentrations of Cd, Cr, Cu, Fe, Mn, Ni, Pb, and Zn were determined by inductively coupled plasma while Hg and As were analyzed with hydride generation flow injection atomic absorption spectroscopy. Contamination of As, Cd, Cr, Cu, Fe, Hg, Mn, Ni, Pb, and Zn was assessed using pollution indices, ecological risk assessment, statistical multivariate techniques and comparison with sediment quality guidelines. Suspended sediments of the upstream portion of the Ipojuca River are moderately contaminated, especially with Mn and As. On the other hand, sediments of the downstream section are highly contaminated, mainly with Zn, Pb, and As. Furthermore, the mean Ei (potential ecological risk) values of Pb and As showed considerable ecological risk in the downstream cross section. The comparison of our data with sediment guideline values indicated that the concentrations of Mn and Pb in the upstream section of the Ipojuca River pose a risk to sediment-dwelling organisms, while Pb and Zn are the metals of concern in the downstream section.

We describe the earliest evidence for neoplastic disease in the hominin lineage. This is reported from the type specimen of the extinct hominin Australopithecus sediba from Malapa, South Africa, dated to 1.98 million years ago. The affected individual was male and developmentally equivalent to a human child of 12 to 13 years of age. A penetrating lytic lesion affected the sixth thoracic vertebra. The lesion was macroscopically evaluated and internally imaged through phase-contrast X-ray synchrotron microtomography. A comprehensive differential diagnosis was undertaken based on gross- and micro-morphology of the lesion, leading to a probable diagnosis of osteoid osteoma. These neoplasms are solitary, benign, osteoid and bone-forming tumours, formed from well-vascularised connective tissue within which there is active production of osteoid and woven bone. Tumours of any kind are rare in archaeological populations, and are all but unknown in the hominin record, highlighting the importance of this discovery. The presence of this disease at Malapa predates the earliest evidence of malignant neoplasia in the hominin fossil record by perhaps 200 000 years.

Background: The clinical course of Pick´s disease (PD) is similar to that of Alzheimer´s disease (AD). Clinical cases: We present the clinical course and CT-scan findings in 3 patients (two sporadic cases and one familial case) diagnosed with PD. Results: The course of this disease was characterized by the following: 1) behavioral and personality changes; 2) progressive impairment of recent memory; 3) sex disturbances and /or appetite increase; 4) upper cortex dysfunction; 5) motor, sensorial and sphincter control worsening, and 6) posture and gait impairment, as well as prostration. Brain tomography studies demonstrated atherosclerosis at the supraclinoid segment of carotid arteries and its branches, and also moderate or severe atrophy in both prefrontal and anterior temporal lobes. Conclusions: These findings suggest that PD is also caused by progressive ischemia in the intra-parenchymal territory of the anterior perforating, anterior choroidal, and lenticulostriate arteries; due to atherosclerotic plaques located at the origin of these arterial branches.

Antecedentes: El curso clínico de la enfermedad de Pick (EP) es similar a la enfermedad de Alzheimer (EA). Casos clínicos: Presentamos el curso clínico y los hallazgos tomográficos en 3 pacientes (dos casos esporádicos y un caso familiar) con diagnóstico de EP. Resultados: El curso de esta enfermedad estuvo caracterizado por:1) cambios de conducta y personalidad, 2) deterioro progresivo de la memoria reciente, 3) disturbios sexuales y/o aumento del apetito, 4) disfunción cortical superior, 5) empeoramiento motor, sensitivo y esfinteriano, y 6) deterioro de la postura, marcha y postración. Los estudios tomográficos demostraron aterosclerosis en las carótidas supraclínoideas y sus ramas, así como atrofia moderada o severa en los lóbulos prefrontales y temporales anteriores. Conclusiones: Estos hallazgos sugieren que la EP es también causada por isquemia progresiva en el territorio intraparenquimal de las arterias perforantes anteriores, coroideas anteriores y lentículo-estriadas, debido a placas ateroscleróticas localizadas en las bocas de estas ramas arteriales

Clinical case: A 26-year old woman had a 6-month history of motor and sensorial loss in her right foot and leg after undergoing a hip replacement surgery. Two electro-diagnostic studies revealed absence of nerve conduction in tibial, fibular, and sciatic nerves. Six moths afterwards, the patient underwent an omental transplantation in the damaged area of the right sciatic nerve. Results: Neurological improvement occurred from the second day after surgery. Nowadays, two years after surgery, the patient has mild to moderate paralysis and hypoesthesia in her right foot and leg. The patient is able to walk using orthopedic support. Conclusion: These results indicate that with this surgical approach we may be able to get over the sequels caused by ischemia and/or trauma in the sciatic nerve; and probably this may also apply to the brachial plexus.

Caso clínico: Una mujer de 26 años de edad, presentó una historia de 6 meses de pérdida motora y sensitiva en su pie y pierna derecha causada por cirugía de reemplazo de cadera. Dos estudios electrodiagnósticos revelaron ausencia de neuroconducción en los nervios tibial, peroneal y ciático mayor. Seis meses después, ella recibió un transplante de epiplón en la zona dañada del nervio ciático derecho. Resultados: La mejoría neurológica ocurrió a partir del segundo día de la cirugía. Actualmente a dos años de la cirugía, presenta leve a moderada paresia e hipoestesia en su pie y pierna derecha. Ella camina con ayuda de aparatos ortopédicos. Conclusión: Estos resultados indican que con esta modalidad quirúrgica podemos mejorar las secuelas causadas por isquemia y/o trauma en el nervio ciático mayor, y probablemente, en plexo braquial.

La meiofauna asociada a pastos marinos en el sector occidental del Golfo de Batabanó, Cuba se estudió para describir las variaciones espaciales y temporales en la estructura de la comunidad. Se tomaron muestras repetidas, a escala de m- y km, en tres localidades y en dos estaciones (seca y lluvia). La meiofauna (metazoos entre 500 y 45 µm) fue identificada hasta grupos taxonómicos principales. No se detectaron cambios estacionales en la estructura de las comunidades de meiofauna ni asociación con los factores abióticos en la columna de agua. La mayor variación en la estructura de la comunidad fue observada a escala espacial de metros (entre muestras en una estación), causada probablemente por la heterogeneidad del micro-ambiente y procesos biológicos. La segunda fuente de variación aparece en escala de kilómetros (entre localidades) y está relacionada a procesos físicos que afectan los pastos marinos: corrientes marinas y disturbios antropogénicos. Los patrones de distribución de la meiofauna a través de las localidades coinciden con un estudio de hace 20 años en pastos marinos (densidades mayores en las áreas más cercanas al borde de la plataforma y menores en el Sur de Pinar del Río); sin embargo, la acumulación de los efectos del impacto antropogénico probablemente explique la disminución de la densidad en las comunidades actuales de meiofauna. Los estimados de densidad de meiofauna y de riqueza de táxones en nuestro estudio (y en otras áreas de la plataforma de Cuba) son coherentemente más bajos que en otros sitios templados y tropicales; la causa posible es la baja productividad primaria debido a la estrecha amplitud de mareas y la oligotrofia de las aguas.

The meiofauna from seagrass meadows in the western sector of the Gulf of Batabanó, Cuba were studied to describe the spatial and temporal variations in community structure. Replicated cores were taken in three locations (arranged in m- and km-scales) and in two seasons (dry and wet). The meiofauna (metazoans between 500 and 45 µm) were identified to major taxa. Temporal changes in the meiofaunal communities could not be detected and they are not linked to the subtle seasonal changes in the water column. A larger variation in community structure was observed in the spatial m-scale (among cores in a station) probably accredited to heterogeneity of microenvironment and biological processes. A second source of variation in the km-scale (among locations) was identified relating to physical processes affecting seagrass meadows: marine currents and anthropogenic disturbances. Distribution patterns of meiofauna across locations coincide with one study from 20 years ago in seagrass beds (i.e. higher densities in area closer to break-shelf and diminution of fauna at southern of Pinar del Río); however, cumulative anthropogenic disturbances on seagrass meadows would most likely explain the depletion of communities observed in our survey in comparison with decades ago. Estimates of meiofaunal density and richness of major taxa from our study (and other areas from the Cuban shelf) are consistently lower than other temperate and tropical sites; possibly caused by low primary productivity due to narrow tidal amplitude and oligotrophic waters. Rev. Biol. Trop. 56 (1): 55-63. Epub 2008 March 31.

O tratamento de primeira escolha para leishmaniose tegumentar americana é o antimonial pentavalente. Embora este tratamento seja na maioria das vezes efetivo e indicado, devem ser consideradas as desvantagens tais como efeitos colaterais, longa duração do tratamento e contra-indicação para cardiopatas, nefropatas, idosos, grávidas e outras condições. Com o advento da vacina antileishmaniose tegumentar americana para fins profiláticos e terapêuticos, associando-a ou não a outros fármacos, muitas pesquisas têm sido desenvolvidas, sendo a vacina a principal entre os atuais recursos no tratamento e prevenção da leishmaniose tegumentar americana. Em conclusão, a associação do antimônio com a vacina (imunoquimioterapia) apresentou o mesmo índice de cura em relação ao tratamento padrão (100%), e ainda reduziu o volume do sal em 17,9% e o tempo de cura significativamente, de 87 para 62 dias; conseqüentemente, reduzindo os efeitos colaterais.

The first choice of treatment for American cutaneous leishmaniasis is the pentavalent antimonial drug. Although it has been shown that this treatment is mostly effective and indicated, some disadvantages should be taken into account such as side effects, long term treatment inconveniences and counter-indication for patients suffering from cardiopathy, nephropathy; yet, aging, pregnancy and other conditions. With the advent of the vaccine anti-American cutaneous leishmaniasis as a prophylactic measure, studies on therapy using the vaccine associated or not with other drugs have been performed by many investigators and it is currently among the alternative treatments and prevention measures for American cutaneous leishmaniasis. In conclusion, the association between antimony and vaccine (immunochemotherapy) showed the same cure rate when compared with the standard treatment (100%) and it was also able to reduce the salt volume in 17.9% and treatment length from 87 to 62 days, decreasing side effects.

A study was conducted to determine the susceptibility of local strains of Culex quinquefasciatus and Aedes aegypti to infection with the strain of Wuchereria bancrofti that occurs in Maceió, State of Alagoas, Brazil. Cx. quinquefasciatus blood fed simultaneously on the same microfilariae carrier ingested more blood and 2-3x more microfilariae than Ae. aegypti. Survival rates of both species of insects living for 21 days after blood feeding on microfilaraemic patients were not significantly different from the survival rates of mosquitoes that blood fed on amicrofilaraemic individuals. W. bancrofti parasites underwent normal development in Cx. quinquefasciatus, with third stage larvae first being recorded on the 11th day post infection, and their numbers increasing thereafter. Development of filariae in Ae. aegypti did not proceed beyond the first larval stage, and there was a progressively increasing number of non-viable larvae with the passage of time. It is concluded that Ae. aegypti is not involved in the transmission of W. bancrofti in Maceió.

Blood eosinophilia and tissue infiltration by eosinophils are frequently observed in allergic inflammation and parasitic infections. This selective accumulation of eosinophils suggested the existence of endogenous eosinophil-selective chemoattractants. We have recently discovered a novel eosinophil-selective chemoattractant which we called eotaxin in an animal model of allergic airways disease. Eotaxin is generated in both allergic and non-allergic bronchopulmonary inflammation. The early increase in eotaxin paralled eosinophil infiltration in the lung tissue in both models. An antibody to IL-5 suppressed lung eosinophilia, correlating with an inhibition of eosinophil release from bone marrow, without affecting eotaxin generation. This suggests that endogenous IL-5 is important for eosinophil migration but does not appear to be a stimulus for eotaxin production. Constitutive levels of eotaxin observed in guinea-pig lung may be responsible for the basal lung eosinophilia observed in this species. Allergen-induced eotaxin was present mainly in the epithelium and alveolar macrophages, as detected by immunostaining. In contrast there was no upregulation of eotaxin by the epithelial cells following the injection of Sephadex beads and the alveolar macrophage and mononuclear cells surrounding the granuloma were the predominant positive staining cells. Eotaxin and related chemokines acting through the CCR3 receptor may play a major role in eosinophil recruitment in allergic inflammation and parasitic diseases and thus offer an attractive target for therapeutic intervention.

Chemokines (chemoattractant cytokines) induce potent and selective chemotaxis of leukocyte subsets in vitro. Here, we review briefly the chemokines shown to induce eosinophil chemotaxis in vitro and describe a novel model for the study of the ability of chemokines to stimulate eosinophil migration in vivo. Eosinophils were purified from the blood of mice over-expressing the IL-5 gene and labelled with 111In. Only the C-C chemokines, eotaxin and MIP-1alpha, but not RANTES, MCP-1, MCP-3, MCP-4, MIP-1ß, KC and MIP-2, effectively induced the recruitment of 111In-eosinophils in mouse skin. We suggest that this mouse model will be useful in assessing the role of endogenously-generated chemokines in mediating eosinophil migration to sites of allergic inflammation in vivo.

The second and third instar larvae, and the pupa of Metacuterebra apicalis (Guérin-Menevilli), are described based on light and scanning electron microscope observations

The morphology and chaetotaxy of the first instar larva of Lutzomyia (Lutzomyia) longipalpis are described based on observations made under scanning electron microscope. Because three-dimensional images were studied, some terminological changes are proposed to give a more realistic description of the positions of the setae. On the larval body, the pairs of setae have the following number: 9 on the head, 12 on the prothorax, 8 on the meso- and metathorax, 6 on the first to eighth abdominal segments, and 8 on the ninth abdominal segment