Animals generate neural representations of their heading direction. Notably, in insects, heading direction is topographically represented by the activity of neurons in the central complex. Although head direction cells have been found in vertebrates, the
4G). PKM2, an isoform of PKM, can form dimers in the nucleus and participate in the regulation of energy metabolism [27]. Further analysis revealed that CM from WT but not Trem2−/− BMDMs triggered PKM2 expression at the protein level in Hepa 1–6 cells (Fig. 5C). IHC staining ...
Here, we investigate the neurobiological basis of stress resilience, by showing that neural responsitivity of the noradrenergic locus coeruleus (LC-NE) and associated pupil responses are related to the subsequent change in measures of anxiety and depression in response to prolonged real-life stress....
Delayed decays: In almost 50% of the relevant atm-NC events, the residual nucleus is the β+-emitting isotope 15O with a lifetime of 2.2 min. Given the low energy threshold, Theia will be able to tag the delayed decay in order to reject half of the atm-NC background without any not...
For a sphere of radius R, the relation between surface area and volume is 3/R. When R is small, the surface area–volume ratio is large. For a ratio similar to that of the lung, R ∼ 0.1 mm. 24. The Poiseuille flow, a steady fully developed flow in a straight pipe with a uni...
Position the brain so that the hemispheres rest on the cloth and the inferior surface of the brain faces upward, with the frontal horns oriented anteriorly. The first incision is made approximately 1–2 cm anterior to the mammillary bodies, separating the hemispheres. If the brain has not ...
Regulation of histone acetylation in the nucleus by sphingosine-1-phosphate. Science 2009, 325, 1254–1257. [Google Scholar] [CrossRef] [PubMed] [Green Version] Maceyka, M.; Harikumar, K.B.; Milstien, S.; Spiegel, S. Sphingosine-1-phosphate signaling and its role in disease. Trends ...
If we are to trust this Wiki page then the formula that you quote is indeed derived by an assumption of a constant density and there is no need for surprise: "The stable nucleus has approximately a constant density and therefore the nuclear radius R can be approximated by the following ...
Chromatin is the genetic material of eukaryotes. The core of a genomic chromatin fiber is an array of nucleosomes. Chromatin condenses the chromosomal DNA molecule into a globular territory in the nucleus. At the same time, chromatin is the substrate for functional processes such as transcription...
so an electron is not a part of the nucleus. Discovery of the Neutron In 1930 the German physicists Bothe and Becker used a radioactive polonium source that emitted α particles. When these α particles bombarded beryllium, the radiation penetrated several centimeters of lead. Photons are called...