Results 71 to 80 of about 67,629 (216)

Scheffrahnitermes ubuntu (Isoptera: Apicotermitinae), Description of a New Termite Using a Collaborative Approach to Address the Wallacean Shortfall

New Zealand Journal of Zoology, Volume 53, Issue 2, June 2026.
The study of Neotropical Apicotermitinae remains challenging due to the large number of undescribed taxa (Linnean shortfall) as well as the scarcity of distributional data (Wallacean shortfall). Despite recent efforts to reduce the first one, the second remains an even more significant challenge.
Camila C. Mellado, Giordano G. Messina, Antonio Carvalho, Danilo E. Oliveira, Rayssa Almeida‐Azevedo, Renato Almeida de Azevedo, Hélida F. Cunha, Emanuelly F. Lucena, Joice P. Constantini, Olga P. Pinzón‐Florián, Tiago F. Carrijo   +10 more
wiley   +1 more source

Automatic Detection of Galaxy Type From Datasets of Galaxies Image Based on Image Retrieval Approach

Scientific Reports, 2017
This paper presents a new approach for the automatic detection of galaxy morphology from datasets based on an image-retrieval approach. Currently, there are several classification methods proposed to detect galaxy types within an image.
Mohamed Abd El Aziz, I. M. Selim, Shengwu Xiong   +2 more
doaj   +1 more source

Full-sky ray-tracing simulation of weak lensing using ELUCID simulations: exploring galaxy intrinsic alignment and cosmic shear correlations

, 2018
The intrinsic alignment of galaxies is an important systematic effect in weak-lensing surveys, which can affect the derived cosmological parameters. One direct way to distinguish different alignment models and quantify their effects on the measurement is
Cui, Weiguang, Jing, Yipeng, Kang, Xi, Li, Guoliang, Li, Shijie, Lim, S. H., Lin, Weipeng, Lu, Yi, Luo, Yu, Mo, Houjun, Tweed, Dylan, Wang, Huiyuan, Wang, Peng, Wang, Yang, Wei, Chengliang, Xia, Qianli, Yang, Xiaohu, Zhang, Youcai   +17 more
core   +1 more source

What Observations Would an Energetic Neutral Atom Imager Have Made During the Voyager 2 Flyby of Uranus?

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract We present large‐scale simulations of energetic neutral atom (ENA) emissions at Uranus from a spacecraft viewpoint. Models of magnetic field, extended hydrogen exosphere, moon‐sourced neutral tori, and proton radiation belt are implemented into a simulator to evaluate the production of ENAs for L $L$ = 1–15.
D. Santos‐Costa, N. André
wiley   +1 more source

Galaxy Zoo: passive red spirals [PDF]

Monthly Notices of the Royal Astronomical Society, 2010
MNRAS in press, 20 pages, 15 figures (v3)
Masters, Karen, Mosleh, Moein, Romer, A. Kathy, Nichol, Bob, Bamford, Steven P., Schawinski, Kevin, Lintott, Chris J., Andreescu, Dan, Campbell, Heather, Crowcroft, Ben, Doyle, Isabelle, Edmondson, Edward M., Murray, Phil, Raddick, M. Jordan, Slosar, Alexander S., Szalay, A., Vandenberg, Jan   +16 more
openaire   +6 more sources

Spin Parity of Spiral Galaxies. I. Corroborative Evidence for Trailing Spirals

The Astrophysical Journal, 2019
Whether the spiral structure of galaxies is trailing or leading has been a subject of debate. We present a new spin parity catalog of 146 spiral galaxies that lists the following three pieces of information: whether the spiral structure observed on the ...
Masanori Iye, Ken-ichi Tadaki, Hideya Fukumoto   +2 more
doaj   +1 more source

Stellar and dust emission profiles of IMEGIN galaxies [PDF]

EPJ Web of Conferences
We present a morphological analysis of a set of spiral galaxies from the NIKA2 Guaranteed Time Large Program, IMEGIN. We have fitted a single Sérsic model on a set of broadband images, from ultra-violet (UV) to millimeter (mm) wavelengths, using the ...
Nersesian A., Adam R., Ade P., Ajeddig H., André P., Artis E., Aussel H., Baes M., Beelen A., Benoît A., Berta S., Bing L., Bourrion O., Calvo M., Catalano A., De Petris M., Désert F.-X., Doyle S., Driessen E.F.C., Ejlali G., Gomez A., Goupy J., Hanser C., Katsioli S., Kéruzoré F., Kramer C., Ladjelate B., Lagache G., Leclercq S., Lestrade J.-F., Macías-Pérez J. F., Madden S.C., Maury A., Mauskopf P., Mayet F., Monfardini A., Moyer-Anin A., Muñoz-Echeverría M., Pantoni L., Perotto L., Pisano G., Ponthieu N., Revéret V., Rigby A.J., Ritacco A., Romero C., Roussel H., Ruppin F., Schuster K., Sievers A., Tucker C., Xilouris E.M., Zylka R.   +52 more
doaj   +1 more source

AM 1934-563: A giant spiral polar-ring galaxy in a triplet [PDF]

, 2005
We have observed the emission-line kinematics and photometry of a southern triplet of galaxies. The triplet contains a giant spiral galaxy AM 1934-563 which optical structure resembles a polar-ring galaxy: distorted spiral disk, seen almost edge-on, and ...
Alvensleben, Armus, Bekki, Bournaud, Bournaud, Bournaud, Bournaud, Brocca, Bushouse, Buta, Buta, Cox, de Grijs, de Jong, F. Bournaud, F. Combes, Fairall, Graham, Ho, Iodice, Iodice, Iodice, James, Kannappan, Karachentseva, Landolt, M. de Oliveira-Abans, M. Faúndez-Abans, Matthews, Moiseev, Monnet, Reshetnikov, Reshetnikov, Reshetnikov, Reshetnikov, Schlegel, Schweizer, Shalyapina, Tully, V. Reshetnikov, van Driel, Veilleux, Whitmore   +42 more
core   +3 more sources

An ATP‐Mediated Antibiotic β‐Peptide Nanofiber That Kills Multidrug‐Resistant Bacteria via a Multistage Mechanism

Advanced Science, Volume 13, Issue 28, 18 May 2026.
The 3K‐AP system forms infinite supramolecular fibrils that undergo controlled degradation into shorter fragments upon enzymatic hydrolysis. Multitechnique imaging reveals a stepwise bacteriolytic mechanism involving bacterial entrapment, disassembly into lethal constructs, and associated extracellular vesicle release, highlighting the dynamic ...
Sohini Chakraborty, Kamal el Battioui, Dániel Molnár, Bálint Jezsó, Lejla Daruka, Tasvilla Sonallya, Tünde Juhász, Rita Hirmondó, Imola Cs. Szigyártó, Loránd Románszki, Natália Tőkési, Daniel Pinkas, Eszter Házy, Olivér Pavela, Andrea Bodor, Zoltán Varga, István Mándity, Mihály Kovács, Csaba Pál, Kata Horváti, Judit Tóth, Tamás Beke‐Somfai   +21 more
wiley   +1 more source

Dark Matter in Spiral Galaxies [PDF]

Symposium - International Astronomical Union, 1995
In this review I will concentrate on three questions concerning the issue of dark matter in spiral galaxies. In the first place (and for the most part) I will discuss the analysis of rotation curves and the question whether the “maximum–disk hypothesis” is valid.
openaire   +2 more sources