Results 71 to 80 of about 234,218 (345)

The spectral-curvature parameter: an alternative tool for the analysis of synchrotron spectra

, 2003
The so-called Spectral Curvature Parameter(SCP), when plotted versus the high-frequency spectral index ($alpha_{high}$) of synchrotron sources, provides crucial parameters on the continuum spectrum of synchrotron radiation without the more complex ...
Alexander, Alexander, B. W. Sohn, Blandford, Carilli, Carilli, Eilek, Eilek, Enßlin, Jaffe, K.-H. Mack, Kardashev, Katz-Stone, Katz-Stone, Katz-Stone, Klein, Mack, Mack, Murgia, Park, Parma, Tribble, U. Klein   +22 more
core   +1 more source

On the shape of the spectrum of cosmic-rays accelerated inside superbubbles [PDF]

, 2009
Supernova remnants are believed to be a major source of cosmic-rays in the Galaxy. As their progenitors are commonly found clustered in OB associations, one has to consider the possibility of collective effects in the acceleration process.
A. Marcowith, Aharonian, Aharonian, Aharonian, Amato, Becker, Berezhko, Blasi, Brandner, Brown, Brown, Burrows, Butt, Bykov, Cash, Casse, Cerviño, Conti, Cooper, Davidson, Drury, Dunne, Ferrand, G. Ferrand, Garmany, Hanson, Higdon, Kang, Klepach, Knauth, Knödlseder, Knödlseder, Kothes, Kroupa, Limongi, Lozinskaya, Lucke, Mac Low, Maddox, Malkov, Massey, Massey, Melrose, Montmerle, Nazé, Nichols-Bohlin, Oey, Parizot, Rauw, Salpeter, Selman, Smith, Torres, Townsley, Tsujimoto, Vladimirov, Walborn, Walborn, Wang   +58 more
core   +4 more sources

Developing evidence‐based, cost‐effective P4 cancer medicine for driving innovation in prevention, therapeutics, patient care and reducing healthcare inequalities

Molecular Oncology, EarlyView.
The cancer problem is increasing globally with projections up to the year 2050 showing unfavourable outcomes in terms of incidence and cancer‐related deaths. The main challenges are prevention, improved therapeutics resulting in increased cure rates and enhanced health‐related quality of life.
Ulrik Ringborg, Joachim von Braun, Julio Celis, Anton Berns, Michael Baumann, Tit Albreht, Nancy Abou‐Zeid, Vanderlei Bagnato, Christian Brandts, Chien‐Jen Chen, Massimiliano di Pietro, Manjit Dosanjh, Thomas Dubois, Alexander Eggermont, Angelika Eggert, Ingemar Ernberg, Sara Faithfull, Johannes Förner, Stefan Fröhling, Manuel Heitor, Leroy Hood, Wei Jiang, Bengt Jönsson, Ravi Kannan, Maria Leptin, Su Li, Peter Lindgren, Douglas Lowy, Jun Ma, Alex Markham, Péter Nagy, Simon Oberst, M. Iqbal Parker, Danielle Rodin, Kevin Ryan, Joachim Schüz, Richard Sullivan, Josep Tabernero, Peter Turkson, Oliver Várhelyi, Harold Varmus, Chijie Wang, Elisabete Weiderpass, Nils Wilking   +43 more
wiley   +1 more source

Stochastic Acceleration of Low Energy Electrons in Plasmas with Finite Temperature [PDF]

, 1997
This paper extends our earlier work on the acceleration of low-energy electrons by plasma turbulence to include the effects of finite temperature of the plasma. We consider the resonant interaction of thermal electrons with the whole transverse branch of
Achatz U., Achterberg A., Gershman B. N., Julia M. Pryadko, Vahe Petrosian   +4 more
core   +2 more sources

RE-ACCELERATION MODEL FOR RADIO RELICS WITH SPECTRAL CURVATURE [PDF]

The Astrophysical Journal, 2016
ABSTRACT Most of the observed features of radio gischt relics, such as spectral steepening across the relic width and a power-law-like integrated spectrum, can be adequately explained by a diffusive shock acceleration (DSA) model in which relativistic electrons are (re-)accelerated at shock waves induced in the intracluster medium ...
Hyesung Kang, Dongsu Ryu
openaire   +3 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

Probabilistic Seismic Hazard Assessment of the Southwestern Region of Saudi Arabia

Applied Sciences
In relation to its rapid infrastructure expansion, exemplified by projects like the Najran Valley Dam or the rehabilitation of agricultural terraces, Saudi Arabia stands out among the Arabian Gulf nations.
Mohamed Arfa, Hamdy A. Awad, Hassan Abbas, José A. Peláez, Rashad Sawires   +4 more
doaj   +1 more source

Particle Acceleration at High-$\gamma$ Shock Waves

, 2005
First-order Fermi acceleration processes at ultrarelativistic shocks are studied with Monte Carlo simulations. The accelerated particle spectra are obtained by integrating the exact particle trajectories in a turbulent magnetic field near the shock, with
Niemiec, Jacek
core   +2 more sources

Gamma-ray bursters as sources of cosmic rays [PDF]

, 1995
The little we do know of the physical conditions in gamma-ray bursters makes them conducive to the acceleration of high-energy cosmic rays, especially if they are at cosmological distances.
Milgrom, Mordehai, Usov, Vladimir
core   +3 more sources

SmallTalk: a novel small‐sized fusion tag for peptide expression and purification

FEBS Open Bio, EarlyView.
The SmallTalk fusion tag allows for the efficient expression and purification of soluble recombinant proteins or peptides in Escherichia coli. Testing with SmallTalk‐GFP confirmed that the proteins were soluble and folded correctly, while SmallTalk‐Bin1b maintained its antimicrobial activity against various bacterial isolates. This streamlined workflow
Atika Tariq, Nestor G. Casillas‐Vega, Alma Gomez‐Loredo, Xristo Zarate   +3 more
wiley   +1 more source