10 documents found, page 1 of 1

International Symposium on Occupational Safety and Hygiene: Proceedings Book of...

Automatic data extraction to support management application

When designing a custom-made product it is important to provide the customer with a budget that resembles the final price. In this work it will be developed a simple application in Python to perform automatic data extraction from computer aided design (CAD) files to estimate multiple linear regression models with the intent of obtaining a more accurate cost estimate. The application will provide an estimate of ...

Perceived vibration exposure symptoms in workers performing seasonal olives har...

This study aimed to contribute to the knowledge of the occupational vibration risk of exposure of workers performing the seasonal task of harvesting olives for oil, especially with regard to their perception about the effects of this exposure. Thus, it was necessary to collect information on this type of exposure, on the main risk factors associated with it and to check the main symptoms reported by operators e...

Contribution for new genetic markers of rheumatoid arthritis activity and sever...

The objective of this study was to assess whether clinical measures of rheumatoid arthritis activity and severity were influenced by tumor necrosis factor-alpha (TNF-alpha) promoter genotype/haplotype markers. Each patient's disease activity was assessed by the disease activity score using 28 joint counts (DAS28) and functional capacity by the Health Assessment Questionnaire (HAQ) score. Systemic manifestations...

Especificidade do parasitóide Apanteles militaris (Hymenoptera: Braconidae) em ...

Apanteles militaris (Walsh) é o mais importante parasitóide larvar de Mythimna unipuncta (Haworth) em todas as ilhas dos Açores. Pretendendo-se saber do modo de actuação deste parasitóide larvícola, procedeu-se ao estudo semanal da sua abundância e à do seu hospedeiro natural. Numa tentativa de compreender onde se encontra este parasitóide durante o Invermo, realizámos ensaios de parasitismo, em condições contr...

Host Age of Pseudaletia unipuncta (Lepidoptera; Noctuidae) and parasitic capaci...

Successful use of Glyptapanteles militaris (Walsh) to control the polyphagous pest Pseudaletia unipuncta (Haworth) depends on knowledge of the host-parasite relationship. In this study, we determined the suitability of different P. unipuncta instars for oviposition by G. militaris females, and we evaluated the parasitoid performance on each host instar (L1 to L6). The following parameters were measured: percent...

Response of Glyptapanteles militaris (Walsh) (Hymenoptera: Braconidae), a Larva...

The effect of four different temperatures (15, 20 25 and 30°C), on biological parameters of the Azorean population of Glyptapanteles militaris (Walsh) was studied, using Mythimna unipuncta (Haworth) as the host. Thirteen biological parameters of the were analyzed: percentage of hosts that died without producing parasitoids; percentage of larvae parasitized from which parasitoids emerged; percentage of hosts sur...

Duração do desenvolvimento de Mythimna unipuncta, Xestla c-nigrum, Agrotis ipsi...

A influência dos factores abióticos sobre o desenvolvimento de espécies de Lepidópteros, nomeadamente no estado larvar, foi e será objecto de numerosos estudos, contribuindo assim para o conhecimento dos seus limites teóricos, duração/velocidade de desenvolvimento e percentagem de mortalidade no estado larvar. Analisou-se, em condições controladas, a duração do desenvolvimento de cada fase do ciclo de vida das ...

Influence of photoperiod on biology of Apanteles militaris (Hymenoptera; Bracon...

The effects of photoperiod on development time, longevity and progeny of Apanteles militaris (Hymenoptera: Braconidae) were investigated using Mythimna unipuncta (Lepidoptera: Noctuidae) as host. Three groups of parasitized host larvae were exposed to 15.5±0.5°C of temperature, 75±0.5 of R.H. Each group was submitted to a different photoperiod, 8:16, 12:12 and 16:8 (L:D). Significant differences were found in t...

Influence of the host larval density on the parasitic capacity of Apanteles mil...

The relationships between Apanteles militaris and the number of host's larvae of Mythimna unipuncta (Haworth) (Lep., Noctuidae) that can be parasitized, was the subject of this study. One parasitoid female parasitizes one, two, four, six or ten larvae of M. unipuncta during 24 hours. There was a relationship between the total number of larvae and the number of parasitized hosts. A significant difference was fou...