Encontrados 8 documentos, a visualizar página 1 de 1
Mould and yeast identification in archival settings: preliminary results on the...
Pinheiro, A. C.; Macedo, M. F.; Jurado, V.; Saiz-Jimenez, C.; Viegas, Carla; Brandão, J.; Rosado, L.This project was developed to fully assess the indoor air quality in archives and libraries from a fungal flora point of view. It uses classical methodologies such as traditional culture media – for the viable fungi – and modern molecular biology protocols, especially relevant to assess the non-viable fraction of the biological contaminants. Denaturing high-performance liquid chromatography (DHPLC) has emerged ...
Laboratory-induced endolithic growth in calcarenites : biodeteriorating potenti...
Miller, A. Z.; Rogerio-Candelera, M. A.; Laiz, L.; Wierzchos, J.; Ascaso, C.; Braga, M. A. Sequeira; Hernández-Mariné, M.; Maurício, A.; Dionísio, A.This study is aimed to assess the formation of photosynthetic biofilms on and within different natural stone materials, and to analyse their biogeophysical and biogeochemical deterioration potential. This was performed by means of artificial colonisation under laboratory conditions during 3 months. Monitoring of microbial development was performed by image analysis and biofilm biomass estimation by chlorophyll ...
Noções de propriedade intelectual - patenteamento na Embrapa: conceitos e proce...
FIGUEIREDO, L. H. M.; MACEDO, M. F. G.; PENTEADO, M. I. de O.Esta publicação pode ser vista como um dos instrumentos de capacitação por intermédio do qual espera-se formar massa crítica capaz de subsidiar os dirigentes da Embrapa na tomada de decisões o que se refere à proteção por patentes. O trabalho discorre sobre os principais conceitos na área de Propriedade intelectual, mais detalhadamente sobre a proteção por intermédio do sistema de patentes. O objetivo principal...
The relationship between phytoplankton diversity and community function in a co...
Duarte, Pedro; Macedo, M.F.; Cancela da Fonseca, L.The decrease of biodiversity related to the phenomena of global climate change is stimulating the scientific community towards a better understanding of the relationships between biodiversity and ecosystem functioning. In ecosystems where marked biodiversity changes occur at seasonal time scales, it is easier to relate them with ecosystem functioning. The objective of this work is to analyse the relationship be...
Phytoplankton production modelling in three marine ecosystems—static versus dyn...
Macedo, M.F.; Duarte, PedroPhytoplankton productivity is usually determined from water samples incubated at a number of irradiance levels during several hours. The resultant productivity-irradiance (P–E) curves are then used to estimate local and/or global phytoplankton production. However, there is growing evidence that these curves, referred as static, underestimate phytoplankton photosynthesis to a great deal, by assuming a stable res...
Low serum transferrin levels in HFE C282Y homozygous subjects are associated wi...
MACEDO, M.F.; CRUZ, E.; LACERDA, R.; PORTO, G.; DE SOUSA, M.Blood Cells Mol Dis. 2005 Nov-Dec;35(3):319-25. Epub 2005 Sep 1. Low serum transferrin levels in HFE C282Y homozygous subjects are associated with low CD8(+) T lymphocyte numbers. Macedo MF, Cruz E, Lacerda R, Porto G, de Sousa M. SourceDivision of Human Genetics and Genetic Disorders, Iron Genes and the Immune System Laboratory, Institute for Molecular and Cell Biology (IBMC), Oporto, Portugal. Abstract Hered...
The influence of incubation periods on photosynthesis–irradiance curves
Macedo, M.F.; Duarte, Pedro; Ferreira, J.G.In phytoplankton primary production studies, samples for the determination of photosynthesis versus irradiance relationship ( P–I) are usually incubated at several irradiance levels during a fixed time period, commonly 2–4 h. However, it is not clear if the use of this fixed incubation time is appropriate to study the P–I relationship in any given ecosystem. The aim of this work was to study the influence of in...
Analysis of the deep chlorophyll maximum across the Azores Front
Macedo, M.F.; Duarte, Pedro; Ferreira, J.G.; Alves, M.; Costa, V.Physical, chemical and biological observations made in late July and August 1997 across the Azores Front (37ºN, 32ºW to 32ºN, 29ºW) are presented. The objectives of the study were: (1) to analyse horizontal and vertical profiles of temperature, salinity, density, nutrients and chlorophyll-a (Chl a) of the top 350 m; (2) to identify the main differences in the deep Chl a Maximum (DCM) and hydrographic structure ...
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