Results 91 to 100 of about 1,207,219 (318)

Navigating new norms: a systematic review of factors for the development of effective digital tools in higher education

FEBS Open Bio, EarlyView.
What factors make for an effective digital learning tool in Higher Education? This systematic review identifies elements of a digital tool that published examples reveal to be features of an engaging and impactful digital tool. A systematic literature search yielded 25 research papers for analysis.
Akmal Arzeman, Jessica Haines, Connie Pritchard, Stephen Rutherford, Nigel Francis   +4 more
wiley   +1 more source

Massive stars and globular cluster formation

, 2007
We first present chemodynamical simulations to investigate how stellar winds of massive stars influence early dynamical and chemical evolution of forming globular clusters (GCs). In our numerical models, GCs form in turbulent,high-density giant molecular
Bekki K., Da Costa G. S., Kenji Bekki, Larson R. B., Masashi Chiba, Schaller G.   +5 more
core   +1 more source

Pathogenic Neurofibromatosis type 1 gene variants in tumors of non‐NF1 patients and role of R1276

FEBS Open Bio, EarlyView.
Somatic variants of the neurofibromatosis type 1 (NF1) gene occur across neoplasms without clinical manifestation of the disease NF1. We identified emerging somatic pathogenic NF1 variants and hotspots, for example, at the arginine finger 1276. Those missense variants provide fundamental information about neurofibromin's role in cancer.
Mareike Selig, Swanhild Lohse, Sara Elahi, Nils Hartmann, Stefanie Deckert, Shutian Si, Alexander Desuki, Anja Harder   +7 more
wiley   +1 more source

The Formation of Very Massive Stars in Early Galaxies and Implications for Intermediate Mass Black Holes

The Open Journal of Astrophysics, 2020
We investigate the ab-initio formation of super-massive stars in a pristine atomic cooling halo. The halo is extracted from a larger self-consistent parent simulation.
John A. Regan, John H. Wise, Tyrone E. Woods, Turlough P. Downes, Brian W. O'Shea, Michael L. Norman   +5 more
doaj   +1 more source

A Multiwavelength Study of Evolved Massive Stars in the Galactic Center

, 2012
The central region of the Milky Way provides a unique laboratory for a systematic, spatially-resolved population study of evolved massive stars of various types in a relatively high metallicity environment.
Blum, Bohannan, Cotera, Crowther, Crowther, Crowther, Crowther, Dhillon, Diolaiti, Dong, Dwek, Espinoza, Figer, Figer, Figer, Figer, Genzel, Ghez, Goudfrooij, H. Dong, Hadfield, Hoard, Homeier, Indebetouw, Kim, Koornneef, Lang, Lang, Langer, Liermann, Liermann, Liermann, M. R. Morris, Maillard, Marchenko, Martins, Martins, Martins, Massey, Mauerhan, Mauerhan, Mauerhan, Mauerhan, Mauerhan, Mikles, Morris, Muno, Muno, Nagayama, Najarro, Nishiyama, Nishiyama, Oka, Paumard, Portegies Zwart, Q. D. Wang, Schödel, Schödel, Scoville, Skrutskie, Smith, Stolovy, Tuthill, Veen, Wang, Wright, Zhao   +66 more
core   +1 more source

Common envelope ejection in massive binary stars - Implications for the progenitors of GW150914 and GW151226 [PDF]

, 2016
The recently detected gravitational wave signals (GW150914 and GW151226) of the merger event of a pair of relatively massive stellar-mass black holes (BHs) calls for an investigation of the formation of such progenitor systems in general.
M. Kruckow, T. Tauris, T. Tauris, N. Langer, D. Szécsi, P. Marchant, P. Podsiadlowski, P. Podsiadlowski   +7 more
semanticscholar   +1 more source

Protein Tyrosine Phosphatase 4A1 (PTP4A1) Regulates Early Events in Colorectal Cancer Intraperitoneal Dissemination in the Aged Male Host

Aging and Cancer, EarlyView.
Colorectal cancer (CRC) mortality is highest in aged males. Pre‐clinical data comparing CRC i.p. metastasis in cohorts of young and aged, male and female mice support these finding. Bottom‐up proteomics of peritoneal mesothelial cells identified PTP4A1 as highly expressed in aged males and a role for PTP4A1 in heterotypic cell:cell adhesion was ...
Zhikun Wang, Yueying Liu, Jing Yang, Tyvette S. Hilliard, Reihaneh Safavi‐Sohi, Daniel D. Hu, Elizabeth I. Harper, Gena Dominique, Wanrui Wang, Jeffrey Johnson, Marwa Asem, William Milosevich, Julia Florek Carlson, Yunpeng Bai, Jinmin Miao, Zhong‐Yin Zhang, Matthew M. Champion, M. Sharon Stack   +17 more
wiley   +1 more source

THE SEQUENTIAL STAR FORMATION IN GLOBULAR CLUSTERS

Odessa Astronomical Publications, 2008
The results of [O/Na] abundance modelling in globular clusters NGC 2808 and NGC 6752 are presented. The evolutionary scenario allowing to reproduce characteristic observed features of [O/Na] distribution function has been suggested.
M. V. Ryabova, Yu. A. Shchekinov
doaj   +1 more source

The Influence of Disk Composition on the Evolution of Stars in the Disks of Active Galactic Nuclei

The Astrophysical Journal, 2023
Disks of gas accreting onto supermassive black holes, powering active galactic nuclei (AGN), can capture stars from nuclear star clusters or form stars in situ via gravitational instability. The density and thermal conditions of these disks can result in
Alexander J. Dittmann, Adam S. Jermyn, Matteo Cantiello   +2 more
doaj   +1 more source

Implications of Elemental Abundances in Dwarf Spheroidal Galaxies

, 2005
Unusual elemental abundance patterns observed for stars belonging to nearby dwarf spheroidal (dSph) galaxies are discussed. Analysis of the [alpha/H] vs.
Alves, Audouze, Bonifacio, Cayrel, Chen, Cohen, Edvardsson, Feltzing, Fryer, Geisler, Gilmore, Grebel, Hanson, Heger, Heger, Hill, Hill, Hirschi, Hirschi, Ikuta, Ishimaru, Korn, Lanfranchi, Law, Maeda, Maeder, Mateo, Matteucci, McWilliam, McWilliam, McWilliam, Meynet, Monaco, Nagataki, Nissen, Penny, Robertson, Shetrone, Shetrone, Shigeyama, Shigeyama, Smith, T. Tsujimoto, Thielemann, Tolstoy, Tolstoy, Travaglio, Tsujimoto, Tsujimoto, Tsujimoto, Umeda, Van Dyk, Venn, Wheeler, Yamada   +54 more
core   +1 more source