Results 141 to 150 of about 2,699,041 (235)

Multi‐isotope (N, O, Ti, and Cr) study of C1 and CM‐like clasts—Probing unsampled C1 material

Meteoritics &Planetary Science, EarlyView.
Abstract A multi‐element isotope (N, O, Ti, and Cr) study was conducted on C1 and CM‐like clasts hosted in achondrites and chondrite breccias to understand the genesis of these chondritic clasts. The mineralogy, O, and N isotopes confirm that CM‐like clasts in howardites and polymict eucrites closely resemble CM chondrite‐like material.
Markus Patzek, Yogita Kadlag, Miriam Rüfenacht, Evelyn Füri, Andreas Pack, Addi Bischoff, Harry Becker, Robbin Visser, Timm John, Maria Schönbächler   +9 more
wiley   +1 more source

The Properties of Poor Groups of Galaxies: II. X-ray and Optical Comparisons

, 1997
We use ROSAT PSPC data to study the X-ray properties of a sample of twelve poor groups that have extensive membership information (Zabludoff and Mulchaey 1997; Paper I). Diffuse X-ray emission is detected in nine of these groups.
Allen S. W., Ann I. Zabludoff, Crawford C. S., Edge A. C., John S. Mulchaey, Mewe R., Ponman T. J., Thomas P. A., Trinchieri G.   +8 more
core   +2 more sources

Temporal Loss of Genome‐Wide and Immunogenetic Diversity in a Near‐Extinct Parrot

Molecular Ecology, EarlyView.
ABSTRACT Loss of genetic diversity threatens a species' adaptive potential and long‐term resilience. Predicted to be extinct by 2038, the orange‐bellied parrot (Neophema chrysogaster) is a critically endangered migratory bird threatened by numerous viral, bacterial and fungal diseases.
Luke W. Silver, Katherine A. Farquharson, Emma Peel, M. Thomas P. Gilbert, Katherine Belov, Hernán E. Morales, Carolyn J. Hogg   +6 more
wiley   +1 more source

‘The non‐dormant beast’: Antisemitism in communities of Russian nationalists on Vkontakte

Nations and Nationalism, EarlyView.
Abstract The article explores the specifics of Russian antisemitic discourse of recent years using the example of three nationalist communities on Vkontakte, the most popular Russian social networking site, by means of critical discourse analysis. The main strategies they employ to frame the Jews online are stereotyping Jews as ungrateful and greedy ...
Petr Oskolkov, Sabina Lissitsa, Eyal Lewin   +2 more
wiley   +1 more source

Distribution of Merging and Post-merger Galaxies in Nearby Galaxy Clusters

The Astrophysical Journal
We study the incidence and spatial distribution of galaxies that are currently undergoing gravitational merging (M) or that have signs of being post-merger (PM) in six galaxy clusters (A754, A2399, A2670, A3558, A3562, and A3716) within the redshift ...
Duho Kim, Yun-Kyeong Sheen, Yara L. Jaffé, Kshitija Kelkar, Adarsh Ranjan, Franco Piraino-Cerda, Jacob P. Crossett, Ana Carolina Costa Lourenço, Garreth Martin, Julie B. Nantais, Ricardo Demarco, Ezequiel Treister, Sukyoung K. Yi   +12 more
doaj   +1 more source

The Interplay of Cluster and Galaxy Evolution

, 2003
We review here the interplay of cluster and galaxy evolution. As a case study, we consider the Butcher-Oemler effect and propose that it is the result of the changing rate of cluster merger events in a hierarchical universe.
Goto, Tomotsugu, Miller, Christopher J., Nichol, Robert C.   +2 more
core   +1 more source

Dual and spatially resolved drought responses in the Arabidopsis leaf mesophyll revealed by single‐cell transcriptomics

New Phytologist, EarlyView.
Summary Drought stress imposes severe challenges on agriculture by impacting crop performance. Understanding drought responses in plants at a cellular level is a crucial first step toward engineering improved drought resilience. However, the molecular responses to drought are complex as they depend on multiple factors, including the severity of drought,
Rubén Tenorio Berrío, Eline Verhelst, Thomas Eekhout, Carolin Grones, Lieven De Veylder, Bert De Rybel, Marieke Dubois   +6 more
wiley   +1 more source

Galaxy Evolution in Groups and Clusters [PDF]

, 2004
In this thesis, we investigate the extent to which galaxy evolution is driven by processes common to the group and cluster environments. A bimodality of galaxy properties such as star formation, strongly dependent upon the local overdensity of galaxies ...
Wilman, David John
core  

GCN5‐related histone acetyltransferase HOOKLESS2 regulates fungal resistance and growth in tomato

New Phytologist, EarlyView.
Summary The functions of histone acetyltransferases (HATs) in the genetic control of crop traits and the underlying mechanisms are poorly understood. We studied the function of tomato HOOKLESS2 (SlHLS2), a member of the GCN5 family of HATs, through genetic, molecular and genomic approaches. Tomato hls2 mutants generated through CRISPR‐cas9 gene editing
Namrata Jaiswal, Chao‐Jan Liao, Ayomi Indika Hewavidana, Tesfaye Mengiste   +3 more
wiley   +1 more source

Robust Detection of Hot Intragroup Medium in Optically Selected, Poor Galaxy Groups by eROSITA

The Astrophysical Journal Letters
Over the last several decades, extensive research has been conducted on the baryon cycles within cosmic structures, encompassing a broad mass range from dwarf galaxies to galaxy clusters. However, a notable gap in understanding the cosmic baryon cycle is
Dawei Li, Taotao Fang, Chong Ge, Teng Liu, Lin He, Zhiyuan Li, Fabrizio Nicastro, Xiaohu Yang, Xiaoxia Zhang, Yun-Liang Zheng   +9 more
doaj   +1 more source