ABSTRACT
Eucalyptus plantations occupy 26 % of Portuguese forested areas. Its flowers constitute important sources for bees and beekeepers take advantage of this and keep their honey bee colonies within or near the plantations for honey production. Nonetheless, these plantations are susceptible to pests, such as the eucalyptus weevil Gonipterus platensis. To control this weevil, some plantations must be treated with pesticides, which might harm non-target organisms. This study aimed to perform a multifactorial assessment of the health status and development of Apis mellifera iberiensis colonies in two similar landscape windows dominated by Eucalyptus globulus plantations - one used as control and the other with insecticide treatment. In each of the two selected areas, an apiary with five hives was installed and monitored before and after a single application of the insecticide acetamiprid (40 g a.i./ha). Colony health and development, resources use, and pesticide residues accumulation were measured. The results showed that the application of acetamiprid in this area did not alter the health status and development of the colonies. This can be explained by the low levels of residues of acetamiprid detected only in pollen and bee bread samples, ~52 fold lower than the sublethal effect threshold. This could be attributed to the low offer of resources during and after the application event and within the application area, with the consequent foraging outside the sprayed area during that period. Since exposure to pesticides in such complex landscapes seems to be dependent on the spatial and temporal distribution of resources, we highlight some key monitoring parameters and tools that are able to provide reliable information on colony development and use of resources. These tools can be easily applied and can provide a better decision-taking of pesticide application in intensive production systems to decrease the risk of exposure for honey bees.
Subject(s)
Eucalyptus , Insecticides , Pesticides , Animals , Bees , Insecticides/toxicity , Neonicotinoids/toxicityABSTRACT
BACKGROUND: Centrodora is a relatively common and widespread genus of morphologically diverse species, and is the most polyphagous genus known within the Aphelinidae, attacking eggs of insects in addition to pupae of Diptera and Hymenoptera, and nymphs of Hemiptera (Polaszek 1991). There are currently about 60 valid species in the genus, but given its morphological and biological diversity, some elevation of species-groups and subgenera to genus-level might be useful in future. Centrodora is represented in Australia by twelve species (Noyes 2015). NEW INFORMATION: Centrodora damoni (Girault) is redescribed and diagnosed from recently collected specimens reared from the eucalyptus weevil Gonipterus sp. near scutellatus Gyllenhal (Coleoptera: Curculionidae) from Tasmania, Australia. A lectotype is designated from a syntype specimen.
ABSTRACT
The morphological aspects of the cervix uteri of twelve albino rats, six in estrus and six in diestrus were studied. Micrometry of the epithelium thickness was performed and it was observed that the epithelium is significantly thicker during the estrus phase of the cycle than in diestrus. The major causes for this are discussed and the findings are correlated with the estrogen and progesterone levels present in each of the mentioned phases
Subject(s)
Animals , Female , Cervix Uteri/anatomy & histology , Diestrus , Estrus , Epithelium/anatomy & histology , Histological Techniques , Rats , Rats, WistarABSTRACT
Seventy-eight women with breast disease were studied aiming to evaluate the importance of the fine needle aspiration biopsy for its diagnosis and forwarding treatment. Our data showed a high diagnostic accuracy with a low level of false negative results and no false positive. The macroscopic appearance of samples is an important aspect. Clear material prevailed in benign pathology (90%) and the presence of blood was usual in malignant tumors (78.3%)
Subject(s)
Humans , Female , Breast Diseases/pathology , Biopsy, Needle/instrumentation , Biopsy, Needle/methods , Biopsy, Needle/statistics & numerical data , Breast Diseases/epidemiology , Breast/pathology , Chi-Square Distribution , Cytodiagnosis/methods , Cytodiagnosis/statistics & numerical data , Diagnosis, Differential , False Negative Reactions , False Positive ReactionsABSTRACT
Säo relatados os resultados obtidos com o emprego da associaçäo Ibuprofeno 200 mg e Fenoterol 1,5 mg, em pacientes portadoras de dismenorréia primária
Subject(s)
Adolescent , Adult , Humans , Female , Dysmenorrhea/drug therapy , Fenoterol/therapeutic use , Ibuprofen/therapeutic use , Drug CombinationsABSTRACT
Foram examinadas 15 amostras de sangue e de urina, provenientes de indivíduos ocupacionalmente expostos ao chumbo inorgânico, com finalidade de determinar os níveis deste metal no sangue e observar as alteraçöes por ele produzidas no sangue e na urina. Para tanto, procedeu-se a execuçäo de hemogramas completos, pesquisa semi-quantitativa das coproporfirinas e exame qualitativo de urina. Os resultados mostraram valores de chumbo sanguíneos, em alguns casos, superiores a 50 *g/100ml, hemáceas com pontilhadas basófilos, policromatofilia e reticulocitose. Na maioria dos indivíduos envolvidos foi detectada a presença de coproporfirinas, näo sendo observadas alteraçöes no exame qualitativo de urina
Subject(s)
Humans , Male , Adult , Occupational Diseases , Lead Poisoning , Lead/urine , Lead/bloodABSTRACT
Säo relatados os resultados preliminares obtidos com o emprego da associaçäo ibuprofeno 200 mg e fenoterol 1,5 mg, em pacientes portadores de dismenorréia primária