Encontrados 12 documentos, a visualizar página 1 de 2

Efeito de práticas parentais de controlo alimentar na ingestão de hortofrutícol...

[abstract] ; [resumo]

A utilização de elicitinas no combate contra Phytophthora cinnamomi na doença d...

Phytophthora cinnamomi e P. cambivora são considerados os agentes patogénicos da doença da tinta do castanheiro. Estes agentes invadem e destroem o sistema radicular, levando à morte das árvores e a importantes perdas económicas. O declínio do montado tem sido associado a vários agentes patogénicos, pragas e factores abióticos. Phytophthora cinnamomi tem sido referido como um potencial agente patogénico do sobr...

Critical period for weed control in potatoes in the Huambo province (Angola)

ABSTRACT - The effects of different weed management periods on potatoes were studied in three areas (Bailundo, Chianga and Calenga) of the central highlands of Angola and in three cropping seasons, from June 2005 to May 2007. Six weed-management treatments were used to identify critical periods of competition and to allow the development of more precise management recommendations. Total potato yield ranged from...

Predict factors of quality of life in MS portuguese patients

Validação de metodologia analítica para determinação de oxalato na urina

A validação metodológica permite evidenciar se os resultados obtidos por um método são confiáveis, tornando-se um elemento essencial na qualidade. Neste estudo, cujo objectivo é validar a metodologia enzimática para determinação de oxalato na urina, incluíram-se 30 amostras de urina de 24horas, pré-tratadas e estudadas em dois auto-analisadores. Os valores dos limites de detecção e quantificação foram 0,98 e 0,...

Exposition of cork oak roots to cryptogein reduced the Infection by Phytophtora...

The oomycete P. cinnamomi has been described as strong contributing factor to the decline of cork oak and holm oak stands occurring in the Iberian Peninsula. There are no eradication methods available against this pathogen.

A Short-Term Sublethal In Situ Sediment Assay with Chironomus riparius Based on...

A short-term, sublethal, and cost-effective in situ sediment toxicity assay for routine assessments with the midge Chironomus riparius Meigen, based on postexposure feeding, was developed and evaluated. An inexpensive and easy-to-use assay chamber was designed. A sediment toxicity assay was successfully performed at a lentic system impacted by acid mine drainage, at sites with different types of sediment. It co...

Prevalence of overweight and obesity in 7-9-year-old Portuguese children: Trend...

The aim of this study was to assess the prevalence of overweight and obesity in Portuguese children age 7-9 years and to analyze trends in body mass index (BMI) from 1970-2002. Data were collected from October 2002 to June 2003 in a random sample of Portuguese children. Height and weight were measured and BMI (Kg/m2) was calculated. The International Obesity TaskForce (IOTF) cutoffs to define overweight and obe...

Prevalence of Overweight and Obesity in 7-9 Year-Old portuguese Children: Trend...

OBJECTIVE: The aim of this study was to analyse changes in the prevalence of overweight and obesity between 1986 and 2000 in Portuguese conscripts, and to examine the role of place of residence and educational level. STUDY DESIGN: Cross-sectional study. METHODS: Data sets from the cross-sectional annual surveys of all 18-year-old Portuguese males born between 1966 and 1981 and examined between 1986 and 2000 (85...

Screening of lectins from South American plants used as affinity ligands to pur...

Two groups of isoforms of rhEPO, at a concentration of 300 µg/ml, were tested as putative inhibitors of the lectinic hemagglutination reaction in order to obtain affinity ligand(s) for hormone purification: groups I (pI: 3.80; 3.89; 3.95; 4.07, 4.15 and 4.26) and groups II (pI: 4.15, 4.26; 4.38; 4.51; 4.72 and 4.93) Crude extracts from the vegetable materials Abrus precatorious (Abrin), Artocarpus incisa (Fruta...