11 Result(s)

Article

Influence of substrate type and magnetic anisotropy on the spin Seebeck effect in ZnFe₂O₄ thin films

The longitudinal spin Seebeck effect (LSSE) has been investigated in ZnFe₂O₄ (ZFO) thin films on different substrates, such as Si (111), MgO (100), and SrTiO₃ (100). The LSSE voltage signal exhibited a linear dep...

J. Gil-Monsalve, E. Santos, J. E. Abrão Neto, A. Azevedo, O. Arnache in Applied Physics A (2023)

Article

The energy spectrum of cosmic rays beyond the turn-down around \(\varvec{10^{17}}\)  eV as measured with the surface detector of the Pierre Auger Observatory

We present a measurement of the cosmic-ray spectrum above 100 PeV using the part of the surface detector of the Pierre Auger Observatory that has a spacing of 750 m. An inflection of the spectrum is observed, ...

P. Abreu, M. Aglietta, J. M. Albury, I. Allekotte… in The European Physical Journal C (2021)

Article

Direct measurement of the muonic content of extensive air showers between \(\mathbf { 2\times 10^{17}}\) and \(\mathbf {2\times 10^{18}}~\)eV at the Pierre Auger Observatory

The hybrid design of the Pierre Auger Observatory allows for the measurement of the properties of extensive air showers initiated by ultra-high energy cosmic rays with unprecedented precision. By using an arra...

A. Aab, P. Abreu, M. Aglietta, J. M. Albury… in The European Physical Journal C (2020)

Article

Impact of nutritional stress on the honeybee colony health

Honeybees Apis mellifera are important pollinators of wild plants and commercial crops. For more than a decade, high percentages of honeybee colony losses have been reported worldwide. Nutritional stress due to h...

B. Branchiccela, L. Castelli, M. Corona, S. Díaz-Cetti, C. Invernizzi… in Scientific Reports (2019)

Article

Phosphorylation of SOS1 on tyrosine 1196 promotes its RAC GEF activity and contributes to BCR-ABL leukemogenesis

Son of Sevenless 1 (SOS1) is a dual guanine nucleotide exchange factor (GEF) that activates the small GTPases RAC and RAS. Although the molecular mechanisms of RAS GEF catalysis have been unveiled, how SOS1 ac...

S Gerboth, E Frittoli, A Palamidessi, F C Baltanas, M Salek, J Rappsilber… in Leukemia (2018)

Article

PGA₁-induced apoptosis involves specific activation of H-Ras and N-Ras in cellular endomembranes

The cyclopentenone prostaglandin A₁ (PGA₁) is an inducer of cell death in cancer cells. However, the mechanism that initiates this cytotoxic response remains elusive. Here we report that PGA₁ triggers apoptosis b...

B Anta, A Pérez-Rodríguez, J Castro, C A García- Domínguez, S Ibiza… in Cell Death & Disease (2016)

Article

Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory

Energy-dependent patterns in the arrival directions of cosmic rays are searched for using data of the Pierre Auger Observatory. We investigate local regions around the highest-energy cosmic rays with ...

A. Aab, P. Abreu, M. Aglietta, E. J. Ahn, I. Al Samarai… in The European Physical Journal C (2015)

Article

Characterisation of the muon beams for the Muon Ionisation Cooling Experiment

A novel single-particle technique to measure emittance has been developed and used to characterise seventeen different muon beams for the Muon Ionisation Cooling Experiment (MICE). The muon beams, whose mean m...

D. Adams, D. Adey, A. Alekou, M. Apollonio… in The European Physical Journal C (2013)

Article

Vitreous levels of interleukine-8 and monocyte chemoattractant protein-1 in macular oedema with branch retinal vein occlusion

To investigate whether interleukine-8 (IL-8) and monocyte chemoattractant protein-1 (MCP-1) are related with macular oedema in patients with branch retinal vein occlusions (BRVOs).

A Fonollosa, J Garcia-Arumi, E Santos, C Macia, P Fernandez, R M Segura, M A Zapata… in Eye (2010)

Article

Decisions to limit care: evaluation of newly graduated physicians during a selection process for medical residency in Brazil

R Goldwasser, C David, A Coelho, E Muxfeldt, E Santos, V Fonseca, M Lobo… in Critical Care (2008)

Article

Erratum to: Path integrals in stochastic electrodynamics

L. Pesquera, E. Santos in Lettere al Nuovo Cimento (1971-1985) (1979)