With the use of a double stimulus technique, nerve fibre velocity range measurements were performed over a single conduction distance in 13 normal subjects and over two conduction distances in another 12 normal subjects. The velocity ranges were found to be dependent upon the conduction distance, owing to unknown refractory period delays. Refractory period values were calculated for the 12 subj...

We present two approaches for the automatic extraction of trees from high resolution aerial imagery. In the first approach we aim at isolated trees in rural areas. This approach is based on automatically generated digital surface models (DSM). It models trees as generalized ellipsoids of revolution which are fitted to the DSM. The parameters of the generated generalized ellipsoids of revolution...

The discovery of Calodromius bifasciatus in the nature reserve 'De Kaaistoep', the Netherlands, initiated research on this and related carabid beetles between 2000 and 2006. During this period we investigated the trunks of 26 Pedunculate oaks, mainly during nightly observations, to learn more about arboricolous carabid species. We observed more than 3000 specimens of 24 carabid species. The maj...

Microhabitats capacity to support insect species diversity and persistence were evaluated implementing solitary parasitoids predatory insects according different phases of herbicide chemical fertilizer applications. Two the genus Xanthopimpla (Ichneumonidae) one Pompilus (Pompilidae) showed relationships on vegetation-type microhabitats, notably natural weeds, leguminous cover crops, beneficial...

It has been thought that lumbar intervertebral discs were innervated segmentally. We have previously shown that the L5-L6 intervertebral disc in the rat is innervated bilaterally from the L1 and L2 dorsal root ganglia through the paravertebral sympathetic trunks, but the pathways between the disc and the paravertebral sympathetic trunks were unknown. We have now studied the spines of 17 rats to...

We consider the problem of reducing the control cost associated with handling connections (or ows) in multimedia networks such as ATM or an Internet supporting RSVP. This cost lies in processing and storage; it is directly related to connection setup latency and to the maximum number of connections that a switching node can handle. We advocate a systematic grouping of connections inside the tra...

In this paper, a new algorithm to improve the accuracy of estimating diameter at breast height (DBH) for tree trunks in forest areas is proposed. First, the information is collected by a two-dimensional terrestrial laser scanner (2DTLS), which emits laser pulses to generate a point cloud. After extraction and filtration, the laser point clusters of the trunks are obtained, which are optimized b...

• The sympathetic innervation of the vascular tree consists of postganglionic fibers derived from the sympathetic ganglion cells in the cervical, thoracic, and lumbar regions of the sympathetic trunks. In most vascular beds the blood vessels receive their innervation from postganglionic nerves which accompany the main arterial vessels supplying the bed. Information is sparse, however, regarding...

By the term Peripheral or Multiple Neuritis is meant an inflammation of the nerve-trunks after their exit from the cranial and intervertebral foramina. I propose to confine myself to those cases only in which many nerve-trunks are invaded progressively, and to the varieties of this large group of diseases of which I have here some instances. Excluding, then, altogether cases of neuritis limited...