Results 31 to 40 of about 124,751 (176)

Formation of Ionization-Cone Structures in Active Galactic Nuclei: I. Stationary Model and Linear Stability Analysis [PDF]

, 2006
We discuss causes of the formation of the observed kinematics and morphology of cones of ionized matter in the neighborhood of the nuclei of Seyfert galaxies. The results of linear stability analysis of an optically thin conic jet where radiation cooling
A. Capetti, A. Capetti, A. Ferrari, A. S. Wilson, A. V. Moiseev, D. G. Payne, E. Emsellem, H. Falcke, H. Falcke, H. S. Ribner, J. A. Morse, J. MacDonald, J. S. Mulchaey, J. W. Miles, K. A. Levin, L. D. Landau, M. E. Kaiser, M. L. Norman, M. L. Norman, N. N. Nagar, P. E. Hardee, P. Ferruit, P. Rossi, R. Antonucci, R. W. Pogge, R. W. Pogge, S. N. Dodonov, S. S. Khrapov, S. Veilleux, T. Miyaji, V. L. Afanasiev, V. L. Alfanasiev, V. V. Mustsevoi, W. Steffen, Y. Sofue, Z. I. Tsvetanov   +35 more
core   +3 more sources

The formation of glacier dirt cones

Journal of Glaciology
Glacier dirt cones are meter-scale cones of ice covered with sediment and rock. The cones develop through a process known as differential melt, whereby ice underlying thick debris melts more slowly than bare ice.
Ryan M. Strickland, Matthew D. Covington
doaj   +1 more source

Gradient-reading and mechano-effector machinery for netrin-1-induced axon guidance

eLife, 2018
Growth cones navigate axonal projection in response to guidance cues. However, it is unclear how they can decide the migratory direction by transducing the local spatial cues into protrusive forces.
Kentarou Baba, Wataru Yoshida, Michinori Toriyama, Tadayuki Shimada, Colleen F Manning, Michiko Saito, Kenji Kohno, James S Trimmer, Rikiya Watanabe, Naoyuki Inagaki   +9 more
doaj   +1 more source

Self-Wiring of Neural Networks

, 1997
In order to form the intricate network of synaptic connections in the brain, the growth cones migrate through the embryonic environment to their targets using chemical communication.
Barrett, Ben Jacob, Ben-Jacob, Buettner, Dodd, Eshel Ben-Jacob, Haydon, Levine, Levitan, Matsushita, Poo, Ronen Segev, Stryker, Tessier-Lavigne, Tessier-Lavigne   +14 more
core   +2 more sources

Moderate repulsive effects of E-unit-containing chondroitin sulfate (CSE) on behavior of retinal growth cones [PDF]

, 2013
Chondroitin sulfate (CS), the carbohydrate chain of chondroitin sulfate proteoglycans, is involved in neuronal circuit formation during development. CS shows great structural diversity with combination of disaccharide units of different structure (A-, C-,
Ando Satoru, Ichijo Hiroyuki, Kimata Koji, Shimbo Miki, Sugiura Nobuo   +4 more
core   +2 more sources

Phytohormones Regulate Both “Fish Scale” Galls and Cones on Picea koraiensis

Frontiers in Plant Science, 2020
The larch adelgid Adelges laricis laricis Vallot is a specialist insect parasite of Picea koraiensis (Korean spruce) and forms fish scale-like galls that damage the growth of the host plants. Our investigation reveals that both these galls and the fruits
Mingyue Jia, Qilong Li, Juan Hua, Jiayi Liu, Wei Zhou, Bo Qu, Bo Qu, Shihong Luo, Shihong Luo   +8 more
doaj   +1 more source

Receptor tyrosine phosphatases regulate axon guidance across the midline of the Drosophila embryo [PDF]

, 2000
Neural receptor-linked protein tyrosine phosphatases (RPTPs) are required for guidance of motoneuron and photoreceptor growth cones in Drosophila. These phosphatases have not been implicated in growth cone responses to specific guidance cues, however, so
Bahri, Sami, Chia, William, Schmid, Aloisia, Sun, Qi, Zinn, Kai   +4 more
core  

Directing growth cones of optic axons growing with laser scissors and laser tweezers [PDF]

, 2012
We have combined a laser scissors and a laser tweezers to study, (1) the response of nerve fiber growth cones to laserinduced damage on single axons, and (2) localized microfluidic flow generated by laser-driven spinning birefringent particles.
Berns, Michael W., Meyer, Ronald L., Miotke, Jill, Mohanty, Samarendra, Nieminen, Timo A., Rubinsztein-Dunlop, Halina, Wu, Tao   +6 more
core   +1 more source

Prediction of Anisotropic Single-Dirac-Cones in Bi${}_{1-x}$Sb${}_{x}$ Thin Films

, 2011
The electronic band structures of Bi${}_{1-x}$Sb${}_{x}$ thin films can be varied as a function of temperature, pressure, stoichiometry, film thickness and growth orientation.
Akhtar S., Asahi H., Bolotin K., Brandt N., Buot F., Callaway J., Chao P., Cheng Y. T., Chu H., Das V. D., Datars W., Dauscher A., Dinger R., Freeman W. L., Fu L., Golin S., Gusynin V., Hartman R., Heremans J., Hirahara T., Hiruma K., Hsieh D., Isaacson R., Jain A., Jin C. G., Katsnelson M. I., Komnik Y. F., Lax B., Li L., Li L., Lin Y., Lin Y. M., Linder J., Mallik R. C., Mallik R. C., Mildred S. Dresselhaus, Moore J., Moore J. E., Novoselov K. S., Park C., Partin D., Pathak S., Qi X. L., Rabin O., Rogacheva E., Sandomirskii V., Shen R., Shim W., Shuang Tang, Sondheimer E., Subotowicz M., Tanuma S., van Hulst J. A., Vecchi M., Vecchi M. P., Vereecken P., Völklein F., Wang J., Xu Y., Zhang Y., Zhang Z.   +60 more
core   +1 more source

Ena/VASP function in retinal axons is required for terminal arborization but not pathway navigation [PDF]

, 2007
The Enabled/vasodilator-stimulated phosphoprotein (Ena/VASP) family of proteins is required for filopodia formation in growth cones and plays a crucial role in guidance cue-induced remodeling of the actin cytoskeleton.
Dwivedy, A., Gertler, F. B., Holt, C. E., Lebrand, C., Miller, J.   +4 more
core   +1 more source