the opportunistic mould aspergillus is a ubiquitous fungus. diseases caused by aspergillus species are most commonly caused by aspergillus fumigatus. the spectrum of disease caused by aspergillus is dependent on the health of the immune system. the ranges of illnesses individuals acquire are aspergilloma, allergic bronchopulmonary aspergillosis, invasive aspergillosis, sinusitis, otomycosis, oc...

conclusions if the indications and contraindications of minimally invasive thyroidectomy are taken into account, it seems to be a safe procedure and regarding the benefits of this procedure, it's recommended that surgeons pay more attention to this newly developed technique. introduction since 1996 with improvement of endoscopic instrumentation several novel minimally invasive techniques have b...

1. Evidence has been obtained showing that unlike the requirements of errant polychaetes studied by other investigators, at least two species of sedentary polychaetes, Branchiomma nigromaculata and Chaetopterus variopedatus can undergo caudal regeneration in the absence of a brain. 2. Both Branchiomma, when maintained in a brainless condition by repeated removal of anterior segments, and Chaeto...

Polychaetes have often been utilized as indicator species to investigate the impacts of pollutants, such as heavy metals. The uptake of Cd by the polychaete Nereis diversicolor was determined at varying Ca concentrations and with pre-exposure to Ca ion channel blockers and metabolic inhibitors in simulated sea water over 1 week period. The supply of Ca in simulated sea water inhibited Cd uptake...

Species composition, distribution, density, biomass, diversity and trophic relationships of the macrobenthic communities in Ubatuba Bay, southeastern Brazilian coast, were investigated seasonally from August 1995 to June 1996. Sampling was carried out at 9 stations of between 4 and 13 m depth and taken in duplicate with a 0.1m2 van Veen grab. Two hundred and five macrofaunal species were identi...

The influence of sediment oxygen heterogeneity, due to bioturbation, on diffusive oxygen flux was investigated. Laboratory experiments were carried out with 3 macrobenthic species presenting different bioturbation behaviour patterns: the polychaetes Nereis diversicolor and Nereis virens, both constructing ventilated galleries in the sediment column, and the gastropod Cyclope neritea, a burrowin...

Coral reef lagoons are generally regarded as zones of net heterotrophy reliant on organic detritus generated in more productive parts of the reef system, such as the seaward reef flat. The abundance and biomass of sediment infauna were measured seasonally for one year (1986) within the lagoon of Davies Reef, central Great Barrier Reef, to test the hypothesis that macrofaunal biomass and product...

background: application noninvasive ventilation in the patients with exacerbation of chronic obstructive pulmonary disease (copd) reduced mortality. this case-control study was designed to compare efficiency and outcome of non-invasive (niv) versus invasive positive pressure ventilation (ippv) in respiratory failure due to copd methods: the patients were assigned to niv or ippv intermittantly.t...

The marine polychaete Chaetopterus variopedatus (Renier) (family Chaetopteridae) is a cosmopolitan species complex, consisting of distinct populations/ subspecies. worms release glowing (460 nm) clouds mucus when disturbed, and their parapodia often glow brightly. Currently, it still unclear how exactly the bioluminescence system these polychaetes functions. It has been previously assumed that ...