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Fine structure and function of the prosomal glands of the two-spotted spider mite, Tetranychus urticae (Acari, Tetranychidae)
SummaryThe prosomal glands of Tetranychus urticae (Acari, Tetranychidae) were examined light and electron microscopically. Five paired and one unpaired gland are found both in females and males. The… Expand
Ultrahistology of oogenesis and vitellogenesis in the spider mite Tetranychus urticae.
Histology of the ovary of the spider mite Tetranychus urticae is described light and electron microscopically with special reference to oogenesis and vitellogenesis of this mite. Morphology of the… Expand
Light and electron microscopical changes in the liver of mice following treatment with aminotriazole.
Light and electronmicroscopical alterations in the liver of mice were shown oral administration of aminotriazole. Intensity of damage depends on concentration. High dosage affects all inter- and… Expand
Ultrastructure and function of the circulatory organs of Leiobunum limbatum and two other species of harvestmen (arachnida: Opiliones)
The ultrastructure of the circulatory organs of Leiobunum limbatum, Mitopus morio, and Rilaena triangularis (Arachnida: Opiliones) has been investigated. We studied the organization of the heart, the… Expand
Nephrocytes of harvestmen, Leiobunum limbatum and L. rotundum.
Nephrocytes are said to be able to take up substances from the hemolymph. In Opiliones, which were examined electron microscopically three different types of nephrocytes were found. Numerous large… Expand
A possible pathway of chitin synthesis as revealed by electron microscopy in Tetranychus urticae (Acari, Tetranychidae)
SummaryTwo chitin synthesising systems in Tetranychus urticae are described: one chitosomal system located in the oocytes where spatial and temporal distances are large, and one membrane bound system… Expand
Environmental actions of agrochemicals 1. Side-effects of the herbicide 3-amino-1,2,4-triazole on a laboratory acarine/host-plant interaction (Tetranychus urticae/Phaseolus vulgaris) as revealed by…
Foliar and soil application in concentrations below the recommended rate of the herbicide 3-amino-1,2,4-triazole to the host plantPhaseolus vulgaris L. results in structural alterations of the… Expand
Hemocytes of Leiobunum limbatum and two other species of harvestmen (Arachnida, Opiliones): Morphological classification and functional aspects
The hemocytes of Leiobunum limbatum, Mitopus morio, and Opilio ravennae number from about 8,000 (juveniles) to 41,000 (pregnant females) per microliter of hemolymph. Five different types of hemocytes… Expand
Ant Tracking Seismic Volumes for Automated Fault Interpretation
The interpretation of faults in 3D seismic volumes can be a tedious task and influenced by predefined bias of the interpreter. Expand
A NEW LATTICE THEORETICAL METHOD IN THE SYSTEM RESEARCH
- K. Seitz
In this lecture we shall generalize the notion of structure-lattice which play an important role in the system theory of chemical engineering. Certain modularity and distributivity conditions will… Expand