Results 41 to 50 of about 137,804 (303)

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Kinetic temperatures toward X1/X2 orbit interceptions regions and Giant Molecular Loops in the Galactic center region

, 2012
Context: It is well known that the kinetic temperatures, Tkin, of the molecular clouds in the Galactic center region are higher than in typical disk clouds.
Bally, Bally, Binney, Bitran, Cheung, Chin, Cox, D. Riquelme, Danby, Ferrière, Fleck, Fukui, Genzel, Goldsmith, Goldsmith, Goldsmith, Goto, Güsten, Güsten, Ho, Hollenbach, Hüttemeister, Hüttemeister, Hüttemeister, J. Martín-Pintado, Jackson, Juvela, Kudo, L. Bronfman, Le Bourlot, Lebrón, Lee, Leung, M. A. Amo-Baladrón, Martín, Martín-Pintado, Martín-Pintado, Martín-Pintado, Mauersberger, Mauersberger, Mauersberger, Mauersberger, Mauersberger, Morris, Morris, Nagayama, Neufeld, Neufeld, Odenwald, R. Mauersberger, Riquelme, Riquelme, Rodríguez-Fernández, Rodríguez-Fernández, S. Martín, Sawada, Scalo, Tanaka, Torii, Torii, Umemoto, van der Tak, Walmsley, Watson, Wilson, Wilson, Wilson, Yusef-Zadeh, Yusef-Zadeh, Zinchenko   +69 more
core   +1 more source

High altitude molecular clouds [PDF]

The Astrophysical Journal, 1994
A population of molecular clouds with a significantly greater scale height than that of Giant Molecular Clouds has been identified by examining maps of the latitude distribution of the $^{12}CO(1-0)$ emission in the first quadrant of the Galaxy. These clouds are found by identifying emission more than 2.6 times the scale-height away from the galactic ...
openaire   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

HCO+ in dark molecular clouds [PDF]

Serbian Astronomical Journal, 2007
Formyl ion is one of the most important molecules, and primary molecular ion to be found in molecular clouds. This paper reviews chemical pathways of formation and destruction of the molecule, as well as its use as a tool in the study of dark molecular ...
Nikolić S.
doaj   +1 more source

Supernova Remnants and Star Formation in the Large Magellanic Cloud

, 2010
It has often been suggested that supernova remnants (SNRs) can trigger star formation. To investigate the relationship between SNRs and star formation, we have examined the known sample of 45 SNRs in the Large Magellanic Cloud to search for associated ...
Annie Hughes, Banas, Bernasconi, Book, Boss, C.-H. Rosie Chen, Caulet, Chen, Chen, Chen, Chu, Chu, Dunne, Erik Muller, Fazio, Fukui, Fukui, Gouliermis, Gruendl, Hughes, Jorge L. Pineda, Jürgen Ott, Karna M. Desai, Klimek, Koo, Leslie W. Looney, Looney, Marshall Katz, Misselt, Mostefaoui, Nazé, Nicolet, Points, Rieke, Robert A. Gruendl, Smith, Tachibana, Tony Wong, van der Marel, Vanhala, Vanhala, Warren, Whitney, William Dluger, Williams, Williams, Yamaguchi, You-Hua Chu, Zaritsky   +48 more
core   +1 more source

Comparative Analysis of Molecular Clouds in M31, M33 and the Milky Way [PDF]

, 2007
We present BIMA observations of a 2$\arcmin$ field in the northeastern spiral arm of M31. In this region we find six giant molecular clouds that have a mean diameter of 57$\pm$13 pc, a mean velocity width of 6.5$\pm$1.2 \kms, and a mean molecular mass of
Christine D. Wilson, Fukui Y., Israel F. P., Kartik Sheth, Loinard L., Rubio M., Stuart N. Vogel, T. M. Dame   +7 more
core   +2 more sources

Interaction of HS1BP3 with cortactin modulates TKS5 localisation, cell secretion and cancer malignancy

Molecular Oncology, EarlyView.
Here, we demonstrate that HS1BP3 interacts with Cortactin through a proline‐rich region (PRR3.1) and show that this interaction, and HS1BP3 itself, promote cancer cell proliferation and invasion. Inhibition of this interaction leads to build‐up of TKS5 in multivesicular endosomes and altered secretion of CD63 and CD9, providing an explanation for the ...
Arja Arnesen Løchen, Kristiane Søreng, Chiara Veroni, Laura Trachsel‐Moncho, Nagham Asp, Robin Gaupset, Lars Gustav Lyckander, Helene Knævelsrud, Lars Eftang, Anne Simonsen   +9 more
wiley   +1 more source

Dense Molecular Clumps with Large Blue Asymmetries: Evidence for Collapse

The Astrophysical Journal
An analysis of the Millimetre Astronomy Legacy Team 90 GHz survey has produced a sample of 27 candidate dense molecular clumps with large collapse motions, as revealed by large “blue” asymmetrical line profiles of the optically thick HCO ^+ (1–0) line ...
James M. Jackson, J. Scott Whitaker, Edward Chambers, Robert Simon, Cristian Guevara, David Allingham, Philippa Patterson, Nicholas Killerby-Smith, Jacob Askew, Patricio Sanhueza, Ian W. Stephens, Anika Schmiedeke, Robert Loughnane   +12 more
doaj   +1 more source

Review of Zeeman Effect Observations of Regions of Star Formation

Frontiers in Astronomy and Space Sciences, 2019
The Zeeman effect is the only observational technique available to measure directly the strength of magnetic fields in regions of star formation. This chapter reviews the physics of the Zeeman effect and its practical use in both extended gas and in ...
Richard M. Crutcher, Athol J. Kemball
doaj   +1 more source