Results 101 to 110 of about 4,697,577 (350)

Tentacle morphogenesis in hydra [PDF]

open access: yes, 1990
Stimulation of tentacle-specific cell differentiation by the neuropeptide head activator was investigated in Hydra magnipapillata. Tentacle-specific sensory nerve cells were identified by a monoclonal antibody, NV1.
David, Charles N.   +2 more
core   +1 more source

Sympathetic nerve-derived ATP regulates renal medullary vasa recta diameter via pericyte cells: a role for regulating medullary blood flow? [PDF]

open access: yes, 2013
Pericyte cells are now known to be a novel locus of blood flow control, being able to regulate capillary diameter via their unique morphology and expression of contractile proteins.
Crawford, C.   +4 more
core   +2 more sources

A Theory of Nerve Nets

open access: yesSeibutsu Butsuri, 1974
It is important to investigate the characteristics of nerve nets from the macroscopic viewpoint, in order to elucidate the information processing of the brain composed of an enormous number of neurons. The present paper aims at establishing a mathematical theory of nerve nets mainly from the macroscopic viewpoint.A method of statistical neurodynamics ...
openaire   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Automatic Segmentation of the Cisternal Segment of Trigeminal Nerve on MRI Using Deep Learning

open access: yesInternational Journal of Biomedical Imaging
Conclusion: The proposed deep learning–based approach, U-Net, shows promise in improving the accuracy and efficiency of segmenting the cisternal segment of the trigeminal nerve. To the best of our knowledge, this is the first fully automated segmentation
Li-Ming Hsu   +6 more
doaj   +1 more source

Reflections on the Utility of the Retina as a Biomarker for Alzheimer's Disease: A Literature Review. [PDF]

open access: yes, 2019
As a part of the central nervous system, the retina may reflect both physiologic processes and abnormalities related to diseases of the brain. Indeed, a concerted effort has been put forth to understand how Alzheimer's disease (AD) pathology may manifest
Honma, Patrick   +2 more
core   +1 more source

Effect of Structure on Function in Model Nerve Nets

open access: yesBiophysical Journal, 1974
A theoretical analysis has been made on the effect of the pattern of interneuronal connectivity in model nerve nets on the activity of these nets. Two types of nets have been investigated: one in which the likelihood of a connection between a given neuron and any other element in the net is given by a Poisson probability distribution, and a second type
Anninos, Photios A., Elul, Rafael
openaire   +2 more sources

Maintenance and Regeneration of the Nerve Net in Hydra [PDF]

open access: yesAmerican Zoologist, 1988
Description des proprietes et de la dynamique du reseau nerveux. On observe comment ces proprietes sont impliquees dans la maintenance du reseau nerveux dans le contexte de la dynamique du tissu chez l'adulte ainsi que pendant le developpement du reseau nerveux au moment de la regeneration de la ...
H. R. BODE   +4 more
openaire   +1 more source

RaMBat: Accurate identification of medulloblastoma subtypes from diverse data sources with severe batch effects

open access: yesMolecular Oncology, EarlyView.
To integrate multiple transcriptomics data with severe batch effects for identifying MB subtypes, we developed a novel and accurate computational method named RaMBat, which leveraged subtype‐specific gene expression ranking information instead of absolute gene expression levels to address batch effects of diverse data sources.
Mengtao Sun, Jieqiong Wang, Shibiao Wan
wiley   +1 more source

Automated Fovea Detection Based on Unsupervised Retinal Vessel Segmentation Method [PDF]

open access: yes, 2017
The Computer Assisted Diagnosis systems could save workloads and give objective diagnostic to ophthalmologists. At first level of automated screening of systems feature extraction is the fundamental step. One of these retinal features is the fovea.
Kalantari, Faraz   +3 more
core   +1 more source

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