Encontrados 11 documentos, a visualizar página 1 de 2

Mechanical behaviour of fibrous braided structures for ligament tissue reinforc...

Procura de sensações e burnout em polícias: um estudo com o AISS

Degradation and Viscoelastic Properties of PLA-PCL, PGA-PCL, PDO and PGA Fibres

Aliphatic polyesters, such as polylactic acid (PLA), polyglycolic acid (PGA), polycaprolactone (PCL), polydioxone (PDO) and others, have been commonly used in biodegradable products. Hydrolytic and/or enzymatic chain cleavage of these materials leads to α-hydroxyacids, which, in most cases, are ultimately assimilated in human body or in a composting environment. However, each of these has some shortcomings...

Development of ligament tissue biodegradable devices: A review

This bibliographic review is focused on ligament tissue rehabilitation, its anatomy-physiology, and, mainly, on the dimensioning considerations of a composite material solution. The suture strength is problematic during the tissue recovering, implying reduction of mobility for several months. However, early postoperative active mobilization may enable a faster and more effective recovering of tissue biomechanic...

Factors influencing electroporation-mediated gene transfer to Stylosanthes guia...

In order to develop a high-efficiency and reproducible transformation protocol for Stylosanthes guianensis we assessed the biological and physical parameters affecting plant electroporation protoplasts. Energy input, as combinations of electric field strengths discharged by different capacitors, electroporation buffer and DNA form were evaluated. Transformation efficiency was assayed in vivo as transient report...

Effect of residence times on river Mondego estuary eutrophication vulnerability

The south arm of Mondego estuary, located in the central western Atlantic coast of Portugal, is almost silted up in the upstream area. So, the water circulation is mostly driven by tides and the tributary river Pranto discharges. Eutrophication has been taking place in this ecosystem during last twelve years, where macroalgae reach a luxuriant development covering a significant area of the intertidal muddy flat...

Effect of residence times on river Mondego estuary eutrophication vulnerability

The south arm of Mondego estuary, located in the central western Atlantic coast of Portugal, is almost silted up in the upstream area. So, the water circulation is mostly driven by tides and the tributary river Pranto discharges. Eutrophication has been taking place in this ecosystem during last twelve years, where macroalgae reach a luxuriant development covering a significant area of the intertidal muddy flat...

Low temperature thermal diffusivity of LiKSO4 obtained using the photoacoustic ...

This paper describes the determination of the thermal diffusivity of LiKSO4 crystals using the photoacoustic phase lag method, in the 77 K to 300 K temperature interval. This method is quite simple and fast and when it is coupled to a specially designed apparatus, that includes a resonant photoacoustic cell, allows for the determination of the thermal diffusivity at low temperatures. The thermal diffusivity is...

Caracterização e tratamento do efluente de uma estação de serviço

O presente estudo incidiu na caracterização e tratamento das lamas retidas nos separadores de hidrocarbonetos instalados numa estação de serviço. Recorreu-se à técnica de respirometria para obter informação prévia sobre a toxicidade e a tratabilidade das lamas por um Sequencial Batch Biofilm Reactor (SBBR). Utilizou-se um inóculo de lamas activadas e uma cultura de Pseudomonas putida. Os testes respirométricos ...

REACTIONAL STATES IN MULTIBACILLARY HANSEN DISEASE PATIENTS DURING MULTIDRUG TH...

It is well known that reactions are commonplace occurrences during the course of leprosy disease. Stigmatization may even be attributable to reactions which are also responsible for the worsening of neural lesions. A cohort of 162 newly-diagnosed baciloscopically positive patients from the Leprosy Care Outpatient Clinic of the Oswaldo Cruz Foundation (FIOCRUZ) was selected for this study. While 46% of the multi...