Univar (United States)

A cárie dentária é a doença de maior prevalência na odontologia, e a incidência dessa patologia vem associada a condições sociais, econômicas, políticas e educacionais. Na comunidade indígena, essas condições são precárias. O objetivo geral deste estudo foi avaliar a saúde bucal dos indígenas, a partir de 12 anos de idade, habitantes da aldeia Jesus de Nazaré, localizada no município de Barra do Garças, Mato Grosso, Brasil. A população para o estudo foram 50 índios, que responderam a um questionário composto por questões relacionadas à saúde em geral, para se obter um estudo de levantamento epidemiológico de CPOD. Trata-se de uma pesquisa analítica observacional de corte transversal, com abordagem qualitativa e quantitativa. A comunidade pesquisada apresenta valores altos para o índice de CPO-D, podendo ser resultante do consumo excessivo de alimentos ricos em carboidratos, da prática deficiente de escovação e da falta de profissionais para atuar nesse grupo.

Sjögren’s Syndrome (SS) is a chronic autoimmune disease, where defense cells attack exocrine glands - responsible for the production of saliva and tears, causing xerostomia and xerophthalmia in its carriers. Xerostomia causes difficulty in swallowing and the use of dentures, a burning sensation in the mouth, fissures in the tongue, increased tooth decay, periodontal diseases, candida, among other oral complications. SS can also cause dryness of the skin, mucous membranes and vital organs. Its etiology remains unknown, but it is known that it can affect all genders and age groups, although it affects more middle-aged women. Its diagnosis is difficult and treatment is symptomatic, aiming to alleviate the symptoms associated with xerostomia, with pilocarpine-based medications, since there is no cure. The dentist is essential for the diagnosis and local treatment of xerostomia, and should guide and assist the patient in maintaining their oral health.

Objetivo: Caracterizar o perfil epidemiológico dos pacientes portadores de tuberculose nos municípios de Barra do Garças e Campinápolis, Mato Grosso. Métodos: Trata-se de um estudo epidemiológico descritivo, observacional, de corte transversal, com dados secundários derivados do Sistema de Informação de Agravos de Notificação (SINAN) e do Instituto Brasileiro de Geografia e Estatística (IBGE). Resultados: Observou-se que em Barra do Garças o maior número de pessoas notificadas com tuberculose foi no ano de 2018, com idade entre 40 e 49 anos, predominantemente na raça/cor branca, com a maioria dos casos confirmados laboratorialmente e evoluídos para a cura. Em Campinápolis ocorreu maior número de casos no ano 2015, a maioria com idade entre 10 e 14 anos, predominantemente na raça/cor indígena, com a maioria dos casos sem confirmação laboratorial e evoluídos para a cura. Conclusão: Portanto, o perfil dos casos de tuberculose nos dois municípios reflete a realidade de cada um deles.

This study investigates the feasibility of performing noninvasive histotripsy therapy through an intact human skull cap. The ablation precision of the therapy using extremely short pulses was also evaluated. A 500-kHz 32-element focused hemispherical array was fabricated in-house; it can generate high instantaneous peak rarefactional pressures (p-) at the focus (theoretically over 100 MPa in free field) with pulses <2 cycles. The skull cap significantly decreased the p- value to approximately 14% of free-field conditions. With timing corrections applied to 32 elements, focal pressure was restored to approximately 28% of free field, allowing consistent cavitation initiation at the focus at an estimated p- of 29 to 30 MPa. Lesions were created in agarose tissue phantoms and ex vivo canine liver using PRFs of 1, 10, and 100 Hz, with a total of 500 histotripsy pulses applied. Main lesions as small as 0.7 x 1.6 mm (±0.1 x 0.1 mm) in the phantoms and 0.5 x 1.2 mm in tissue samples were generated transcranially. Results showed that treatments at lower PRF yielded lesions with more confined ablation and sharper boundaries. The capability of generating small, precise transcranial lesions could be potentially useful for noninvasive brain therapy applications at low frequencies.

The geothermal reservoir modeling effort at the University of Colorado is reviewed briefly. Technical accomplishments during the final funding period 1 April 1978 to 30 November 1978 are described. It is concluded that a physically viable mathematical model of an unexploited geothermal system can be constructed in terms of the fault zone controlled charging of the thermally active section of a reservoir.

The properties of and reactor test results for two types of nuclear- propulsion-reactor fuel elements containing uraniumzirconium carbide, (U,Zr)C, are reported. Composite fuel elements containing graphite and ~35 vol% carbide, along with fuel elements consisting only of carbide, were tested in Los Alamos Scientific Laboratory's Nuclear Furnace 1 reactor for l09 min at peak power densities of ~4500 MW/m/sup 3/ and temperature up to 2500 deg K. Fission-fragment damage to the graphite phase of the composite fuel elements increased the roomtemperature thermal resistivity of the matrix ninefold, resulting in unexpected high mass losses of carbon. The carbide elements developed both longitudinal and transverse fractures but did not fragment into small-size particles. (auth)