Results 131 to 140 of about 535,368 (303)
Novel VAC14 Variants Identified in a Patient with Striatonigral Degeneration and Prolonged Survival
Movement Disorders Clinical Practice, EarlyView.
Silvestre Cuinat +6 more
wiley +1 more source
Morphology and development of the baculum in harbour seals (Phoca vitulina)
Journal of Zoology, EarlyView.This study examines the ontogenetic changes in the morphology of the penis bone in the harbour seal, focusing on the implications for sexual maturity and reproductive function. A large comparative dataset of approx. 300 genital bones from 1 year to over 20 years of age was used for analyses.
T. Berghäuser +3 more
wiley +1 more source
The wind-sock theory of comet tails [PDF]
A method is reported for calculating the shapes of ionic comet tails that use the magnetic field along the tail to channel the tail plasma. The local momentum field in the solar wind determines magnetic field line locations along the tail.
Brandt, J. C., Rothe, E. D.
core +1 more source
, 1992 The comet-tail (A 2 Π i -X 2 Σ + ) system of the molecular ion 12 C 16 O + , excited in the cathode glow of a hollow-cathode discharge tube of special design, was photographed in the spectral region 3400-8500 A. Of the 17 observed bands with v'=0-8 and v″
C. Haridass, C.V.V. Prasad, S. Reddy
semanticscholar +1 more source
Heavy‐duty conceptual engineering
Noûs, EarlyView.Abstract Conceptual engineering is the process of assessing and improving our conceptual repertoire. Some authors have claimed that introducing or revising concepts through conceptual engineering can go as far as expanding the realm of thinkable thoughts and thus enable us to form beliefs, hypotheses, wishes, or desires that we are currently unable to ...
Steffen Koch, Jakob Ohlhorst
wiley +1 more source
Time-lapse CCD imagery of plasma-tail motions in Comet Austin [PDF]
The appearance of the bright comet Austin 1989c1 in April-May of 1990 allowed us to test a new imaging instrument at the Joint Observatory for Cometary Research (JOCR).
Klinglesmith, Daniel A., III +3 more
core +1 more source
, 2010 Comet C/2007 N3 (Lulin) was observed with the Japanese infrared satellite AKARI in the near-infrared at a post-perihelion heliocentric distance of 1.7 AU. Observations were performed with the spectroscopic (2.5--5.0 micron) and imaging (2.4, 3.2, and 4.1
Biver +17 more
core +1 more source
Plasma irregularities in the comet's tail [PDF]
The Astrophysical Journal, 1976 Scintillation theory is invoked to explain fluctuations in radio intensity observed during occultation of the extragalactic radio source PKS 2025-15 by the plasma tail of comet 1973 XII on Jan. 5, 1975. Plasma irregularities and turbulence in the tail of the comet (Kohoutek 1973f) are fitted to a Gaussian spectrum and to a Kolmogorov power-law spectrum
openaire +2 more sources
On the acceleration of the receding masses in the tail of Halley's comet 1910 June 6 [PDF]
, 1910 E. E. Barnard
openalex +1 more source
New Phytologist, EarlyView.Summary The macroevolutionary drivers for disparities in plant species richness across Australia are understudied, hindered by lack of densely sampled comparative phylogenetic data. Here, we address this gap by analysing plant diversification dynamics and quantifying macroevolutionary trajectories of 22 plant clades (4289 species in 14 families) across
Francis J. Nge, Alexander Skeels
wiley +1 more source