Results 111 to 120 of about 1,877,533 (362)

Histochemical indications for a chemically complex signal produced by the cervical gill slit gland of the pygmy sperm whale (Kogia breviceps)

The Anatomical Record, EarlyView.
Abstract The pygmy sperm whale (Kogia breviceps) possesses an exocrine gland associated with its false gill slit pigmentation pattern. The cervical gill slit gland is a compound tubuloalveolar gland that produces a holocrine secretion and displays maturational changes in size and secretory histology. While the morphology of the cervical gill slit gland
Tiffany F. Keenan, William A. McLellan, Sentiel A. Rommel, Alexander M. Costidis, Craig A. Harms, J. G. M. Thewissen, Susan J. Rehorek, David S. Rotstein, Mark D. Gay, Alison R. Taylor, Heather N. Koopman, Ying Wang, Stephanie Kamel, D. Ann Pabst   +13 more
wiley   +1 more source

Automatic flower detection and phenology monitoring using time‐lapse cameras and deep learning

Remote Sensing in Ecology and Conservation, Volume 8, Issue 6, Page 765-777, December 2022., 2022
We present an automatized method for monitoring flower phenology of specific plant species trough full growing seasons and across geographical regions. The method couples image‐based monitoring of field plots with a dedicated convolutional neural network to detect and count flowers in the images, and returns information on flowering phenology at ...
Hjalte M. R. Mann, Alexandros Iosifidis, Jane U. Jepsen, Jeffrey M. Welker, Maarten J. J. E. Loonen, Toke T. Høye, Marcus Rowcliffe, Xuehua Liu   +7 more
wiley   +1 more source

New white dwarf stars in the Sloan Digital Sky Survey Data Release 10 [PDF]

, 2014
We report the discovery of 9 089 new spectroscopically confirmed white dwarfs and subdwarfs in the Sloan Digital Sky Survey Data Release 10. We obtain Teff, log g and mass for hydrogen atmosphere white dwarf stars (DAs) and helium atmosphere white dwarf stars (DBs), and estimate the calcium/helium abundances for the white dwarf stars with metallic ...
arxiv   +1 more source

RNA‐Based Biopesticides: Pioneering Precision Solutions for Sustainable Aquaculture in China

Animal Research and One Health, EarlyView.
The Chinese dragon represents RNA biopesticides, which effectively counteract bacterial, viral, and parasitic threats, safeguarding aquatic life. This method is precise, focusing solely on harmful agents and sparing beneficial aquaculture species. Its innovative nature protects aquatic environments while reducing ecological footprint.
Yiran Huang, Yingmin Dai, Zhuotong Huang, Mengqi Zhang, Lijun Xiu, Xianhui Zhang, Youyu Zhang, Lixing Huang   +7 more
wiley   +1 more source

Measuring the Mass–Radius Relation of White Dwarfs Using Wide Binaries

The Astrophysical Journal
Measuring the mass–radius relation of individual white dwarfs is an empirically challenging task that has been performed for only a few dozen stars. We measure the white dwarf mass–radius relation using the gravitational redshifts and radii of 135 white ...
Stefan Arseneau, Vedant Chandra, Hsiang-Chih Hwang, Nadia L. Zakamska, Gautham Adamane Pallathadka, Nicole R. Crumpler, J. J. Hermes, Kareem El-Badry, Hans-Walter Rix, Keivan G. Stassun, Boris T. Gänsicke, Joel R. Brownstein, Sean Morrison   +12 more
doaj   +1 more source

Spun-Up Rotation-Powered Magnetized White Dwarfs in Close Binaries as Possible Gamma-ray Sources: Signatures of Pulsed Modulation from AE Aquarii and AR Scorpii in Fermi-LAT Data

Galaxies, 2023
In this paper, the possibility of periodic pulsar-like gamma-ray emission from the white dwarfs in AE Aquarii and AR Scorpii is investigated. We show that the white dwarf magnetospheres in AE Aquarii and AR Scorpii can possibly induce potentials to ...
Pieter J. Meintjes, Spencer T. Madzime, Quinton Kaplan, Hendrik J. van Heerden   +3 more
doaj   +1 more source

X-Ray Emissions from Accreting White Dwarfs: A Review [PDF]

, 2017
Interacting binaries in which a white dwarf accretes material from a companion—cataclysmic variables (CVs) in which the mass donor is a Roche-lobe filling star on or near the main sequence, and symbiotic stars in which the mass donor is a late type giant—
K. Mukai
semanticscholar   +1 more source

Observations of Ultracool White Dwarfs [PDF]

The Astrophysical Journal, 2001
Accepted to Astronomical Journal, March ...
Oppenheimer, B. R., Saumon, D., Hodgkin, S. T., Jameson, R. F., Hambly, N. C., Chabrier, G., Filippenko, A. V., Coil, A. L., Brown, M. E.   +8 more
openaire   +6 more sources

Low Luminosity Companions to White Dwarfs [PDF]

, 2005
This paper presents results of a near-infrared imaging survey for low mass stellar and substellar companions to white dwarfs. A wide field proper motion survey of 261 white dwarfs was capable of directly detecting companions at orbital separations between $\sim100$ and 5000 AU with masses as low as 0.05 $M_{\odot}$, while a deep near field search of 86
arxiv   +1 more source

Association of Synovial Innate Immune Exhaustion With Worse Pain in Knee Osteoarthritis

Arthritis &Rheumatology, EarlyView.
Objective Uncontrolled pain remains a major clinical challenge in the management of knee osteoarthritis (OA), the most common disabling joint disease. Worse pain is associated with synovial innate immune cell infiltration (synovitis), but the role of innate immune‐regulatory cells in pain is unknown. Our objective was to identify synovial innate immune
Holly T. Philpott, Trevor B. Birmingham, Garth Blackler, J. Daniel Klapak, Alexander J. Knights, Easton C. Farrell, Benoit Fiset, Logan A. Walsh, J. Robert Giffin, Edward M. Vasarhelyi, Steven J. MacDonald, Brent A. Lanting, Tristan Maerz, C. Thomas Appleton, on behalf of the WOREO Knee Study Group   +14 more
wiley   +1 more source