No (117)
Yes (1)
Number of found documents:
118
Published from
to
Interaction between descending and ascending pathways in the auditory system
Syka, Josef
2001 - English
Inactivation of the AC resulted in changes in the latency and amplitude of some parts of click-evoked IC responses and in either an increase or decrease in the firing rate of IC neurons in comparison with normal control conditions. The interaction of ascending and descending pathways in the auditory system may contribute to better frequency tuning, suppression of non-relevant acoustical signals and concentration of our attention on specific signals (for example the voice of the speaker.)
Keywords:
acoustical stimulation
Available at various institutes of the ASCR
Interaction between descending and ascending pathways in the auditory system
Inactivation of the AC resulted in changes in the latency and amplitude of some parts of click-evoked IC responses and in either an increase or decrease in the firing rate of IC neurons in comparison ...
NADPH-d - positive neurons in the auditory cortex of young and very old rats
Nwabueze-Ogbo, Fidel Chijoke; Druga, R.; Syka, Josef
2001 - English
In young and very old animals stained neurons were localized in layers II-VI and in the subcortical white matter. A significantly higher packing density of labeled supragranular layers. In very old animals the thickness of the auditory cortex and the neuronal density was reduced when compared to the young.
Keywords:
auditory cortex
Available at various institutes of the ASCR
NADPH-d - positive neurons in the auditory cortex of young and very old rats
In young and very old animals stained neurons were localized in layers II-VI and in the subcortical white matter. A significantly higher packing density of labeled supragranular layers. In very old ...
Representation of communication sounds in the inferior colliculus of the guinea pig
Šuta, Daniel; Kvašňák, Eugen; Popelář, Jiří; Syka, Josef
2001 - English
The spectrotemporal discharge patterns of the neuronal population were clearly related to the spectrotemporal acoustic patterns of vocalization sounds.This study provides evidence for encoding of the spoctrotemporal acoustic pattern of vocalization sounds in a spcific and distributed way by the firing patterns of a population of IC units.
Keywords:
guinea pig
Available at various institutes of the ASCR
Representation of communication sounds in the inferior colliculus of the guinea pig
The spectrotemporal discharge patterns of the neuronal population were clearly related to the spectrotemporal acoustic patterns of vocalization sounds.This study provides evidence for encoding of the ...
Changes in astrocytic structure in rat hippocampus evoked by activation of glutamate receptors and learning
Šimonová, Zuzana; Náměstková, Kateřina; Vargová, Lýdia; Syková, Eva
2001 - English
Stimulation by NMDA application or learning alters astrocytic structure.
Keywords:
hippocampus
Available at various institutes of the ASCR
Changes in astrocytic structure in rat hippocampus evoked by activation of glutamate receptors and learning
Stimulation by NMDA application or learning alters astrocytic structure.
Extracellular space volume fraction and geometry in human cortex and glial tumors
Homola, Aleš; Vargová, Lýdia; Zámečník, J.; Tichý, M.; Beneš, V.; Syková, Eva
2001 - English
Ecs diffusion parameters in human temporal cortex similar to those previously determined in rat cortex. Volume fraction ? and tortuosity ? are increased in astrocytic gliomas and the higher the glioma´s WHO grade the greater the ECS volume and tortuosity increase. Migration and invasiveness correlate with an increase in ECS volume.
Keywords:
glial tumors
Available at various institutes of the ASCR
Extracellular space volume fraction and geometry in human cortex and glial tumors
Ecs diffusion parameters in human temporal cortex similar to those previously determined in rat cortex. Volume fraction ? and tortuosity ? are increased in astrocytic gliomas and the higher the ...
Peripheral and central changes of the auditory system in the elderly
Mazelová, Jana; Popelář, Jiří; Valvoda, Jaroslav; Syka, Josef
2001 - English
We compared the hearing abilities of 15 elderly subjects with a group of 15 young normal hearing. The results of this study support the opinion of many other suthors that the problems of aged people do not result ohly from elevated audiometric thresholds, but also from processes of central oring.
Keywords:
auditory system
Available at various institutes of the ASCR
Peripheral and central changes of the auditory system in the elderly
We compared the hearing abilities of 15 elderly subjects with a group of 15 young normal hearing. The results of this study support the opinion of many other suthors that the problems of aged people ...
Transport of ribosomal RNA within the nucleolus
Staněk, David; Koberna, Karel; Pliss, Artem; Čtrnáctá, Vlasta; Malínský, Jan; Mašata, Martin; Večeřová, Jaromíra; Raška, Ivan
2000 - English
In the present study, we have explored the fact that incorporation of BrU into prerRNA did not interfere with pre-rRNA processing (11) and we have investigated the transport of non - isotopically labeled RNA within the nucleolus by means of transmissiion electron microscopy and confocal laser scanning microscopy.Within 20 minutes, BrU - labeled nucleolar RNA moved from the transcription sites in nucleolar DFC to GC. Double localization of bromouridine labeled RNA and fibrillarin revealed that only a ppart of the fibrillarin rich domains were transcriptionally active.
Available at various institutes of the ASCR
Transport of ribosomal RNA within the nucleolus
In the present study, we have explored the fact that incorporation of BrU into prerRNA did not interfere with pre-rRNA processing (11) and we have investigated the transport of non - isotopically ...
Interactions between PML nuclear bodies and nuclear DNA helicase II
Fuchsová, Beáta; Novák, P.; Kafková, J.; Hozák, Pavel
2000 - English
Our findings suggest that NDH II recruitment to PML NBs might be important for the role of this nuclear domain in transcriptional regulation and are consistent with the model that PML protein functions as a transcription factor.
Available at various institutes of the ASCR
Interactions between PML nuclear bodies and nuclear DNA helicase II
Our findings suggest that NDH II recruitment to PML NBs might be important for the role of this nuclear domain in transcriptional regulation and are consistent with the model that PML protein ...
Morphology and distribution of nadph-diaphorase positive neurons in the auditory cortex of the rat
Nwabueze-Ogbo, Fidel Chijoke; Druga, R.; Syka, Josef
2000 - English
Our results indicate the preferred lacalization of the NADPH-d/ NOS positive neurons in the infragranular layers, which are sources of the majority of corticofugal neurons projecting to the subcortical structures.
Available at various institutes of the ASCR
Morphology and distribution of nadph-diaphorase positive neurons in the auditory cortex of the rat
Our results indicate the preferred lacalization of the NADPH-d/ NOS positive neurons in the infragranular layers, which are sources of the majority of corticofugal neurons projecting to the ...
Spliceosomal Assembly on Precursor mRNA Takes Place in the Nuclear Speckles
Melčák, Ivo; Cermanová, Štěpánka; Raška, Ivan
2000 - English
Nuclear speckles (speckles), enriched in splicing factors, form a distict nuclear compartment within the interchromatin space. It has been schown to serve vicinal active genes as a reservoir of splicing factors.We show that (pre-)spliceosomal assemblyy on pre-mRNA is associated with the speckles in HeLa cells.
Available at various institutes of the ASCR
Spliceosomal Assembly on Precursor mRNA Takes Place in the Nuclear Speckles
Nuclear speckles (speckles), enriched in splicing factors, form a distict nuclear compartment within the interchromatin space. It has been schown to serve vicinal active genes as a reservoir of ...
NRGL provides central access to information on grey literature produced in the Czech Republic in the fields of science, research and education. You can find more information about grey literature and NRGL at service web
Send your suggestions and comments to nusl@techlib.cz
Provider
Other bases