Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1432-1106
    Keywords: Trigeminal nerve ; PAD ; Trigeminal spinal nucleus caudalis ; Interneuron ; Subnucleus magnocellularis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Depth analysis was performed on the field potential evoked by stimulation of the infraorbital nerve in the trigeminal spinal nucleus caudalis and the subjacent lateral reticular formation of cats. It was shown by dye marking of the recording positions that each subnucleus of the nucleus caudalis (subnucleus marginalis, gelatinosus and magnocellularis) and the reticular formation could be differentiated from one another by the characteristics of the peripherally evoked field potentials. Responses of neurons were extracellularly recorded in the subnuclei gelatinosus and magnocellularis of the nucleus caudalis and in the reticular formation to stimulation of the trigeminal sensory branches (the frontal, infraorbital and lingual nerves), the nucleus ventralis posteromedialis of the thalamus and the cerebral cortex. The properties of the neurons were studied in relation to their thresholds, latencies, receptive fields (sensory branches effective for spike generation) and frequency-following capacities. These responses were then compared with properties of the PAD induced in the fibers terminating in the nucleus caudalis by similar peripheral and central stimulation. It was found that the neurons in the subnucleus magnocellularis were the most likely candidates for the interneurons mediating the peripherally evoked disynaptic PAD in the trigeminal nerve fibers terminating in the nucleus caudalis.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 29 (1977), S. 45-56 
    ISSN: 1432-1106
    Keywords: Trigeminal nerve ; Primary afferent fiber ; Trigeminal spinal nucleus ; PAD ; Intra-axonal record
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Intra-axonal recordings were made from trigeminal primary afferent fibers in the trigeminal spinal nuclei oralis and caudalis of cats. Primary afferent depolarization (PAD) was evoked in these afferents by stimulation of the trigeminal peripheral sensory branches (the frontal, infraorbital and lingual nerves), the cerebral cortex and the trigeminal spinal nucleus caudalis. The properties of the PAD, including the threshold, latency, receptive field (sensory branches effective for PAD induction) and frequency-following capacity, were studied with the following results: 1. Stimulation of all the peripheral branches tested as well as the cerebral cortex could evoke PAD in the same single fiber. The latency of the PAD evoked by stimulation of the nerve in which the fiber being recorded from was included was generally shorter than that evoked by other branches. The PAD evoked by peripheral nerve stimulation was assumed to be disynaptic in some cases. 2. The peripherally evoked PAD was chiefly attributable to low threshold afferents in the stimulated sensory branches of the trigeminal nerve. 3. The peripherally evoked PAD could follow stimulation at up to 30/sec, though the amplitude was reduced. 4. Stimulation of the nucleus caudalis could evoke PAD with disynaptic latency in the majority of the fibers terminating in the same nucleus, whereas it evoked PAD with mainly polysynaptic latency in the fibers terminating in the nucleus oralis. The results are discussed in relation to the neuronal circuitry responsible for induction of the trigeminal PAD.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 33 (1977), S. 919-921 
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Astrophysics and space science 61 (1979), S. 217-227 
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The brightness distribution of diffuse soft X-rays in the pulse height range 0.15–0.3 keV (L-band) and 0.5–0.8 keV (M-band) are obtained over a quarter of the sky centered at the galactic anticenter with 1.5 μm polypropylene window proportional counters on board a sounding rocket. In theL-band three enhanced regions are noticed on the map. They coincide with the northern and southern Hi holes and the inner part of the galactic radio Loop II. In the northern Hi hole theN H dependence of theL-band flux and the hardness ratioM/L can be fitted with a local hot plasma model with the absorption by a low velocity neutral hydrogen gas (|V|〈25 km s−1) along the line of sight. The X-ray feature of Loop II is similar to that of Loop I. In the lowN H region (〈3×1020 H atoms cm−2) theM/L value is lower than 0.3, whereas it varies in the range 0.1–0.4 at low latitudes (|b|〈300). This fact seems to be interpreted in terms of a model that a number of hot plasma clouds contribute to X-ray emission.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    GeoJournal 3 (1979), S. 117-136 
    ISSN: 1572-9893
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography
    Notes: Abstract The Monsoon Experiment is the core of the GARP Monsoon Subprogramme, which is a major international effort to achieve a better understanding of the Planetary monsoon circulation, the major seasonal perturbation of the general circulation of the atmosphere and the influence of the annual cycle of precipitation associated with the monsoon on the agriculture of the many populous nations of the region. This is a summary report of the International MONEX Planning Meetings, which were held in Yerevan, USSR, March 1973; Singapore, November 1974; New Delhi, March 1977; and Kuala Lumpur, February 1978. MONEX represents a group of observational studies during the First GARP Global Experiment (FGGE) over the South China Sea (December 1978), Arabian Sea (May–June 1979), and Bay of Bengal (July–August 1979). These periods will permit study of most of the significant aspects of the winter and summer monsoons. This is elaborated on in Sections 2 and 3.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...