Martingale spaces and representations under absolutely continuous changes of probability

In a fully general setting, we study the relation between martingale spaces under two locally absolutely continuous probabilities and prove that the martingale represen- tation property (MRP) is always stable under locally absolutely continuous changes of probability. Our approach relies on minimal requirements, is constructive and, as shown by a simple example, enables us to study situations which cannot be covered by the existing theory

Estakhr Project - Third preliminary report of the joint Mission of the Iranian center for archaeological research, the Parsa-Pasargadae research foundation and the Sapienza University of Rome, Italy

This report presents the preliminary results of the study of the pottery collected during the excavation campaign carried out in 2012 in the framework of the joint Iranian-Italian Archaeological Mission in Estakhr. The ceramic finds relate to a time span ranging from the 9th to the 12th century, corresponding to the occupation phases identified within the stratigraphy. Moreover, the use of archaeometry made it possible to identify both imported and locally manufactured wares

The roles of vegetative volatiles in plant defense and other interactions

In addition to water vapor, oxygen, and carbon dioxide, plants release a variety of volatile organic compounds (VOCs) from their vegetative organs. These volatiles can mediate plant interactions with the environment. For example, they can help plants defend themselves against biotic attackers, or they can act as signals within or between plants, eliciting defensive responses. Since volatiles are so frequently released by plants after herbivore damage, much effort has been made to elucidate the role of herbivore-induced volatiles. However, undamaged plants of many species emit VOCs too. In order to fully understand the function of VOCs, it is necessary to investigate the function of both induced and constitutive volatile emission. In this work, we studied the role of constitutive volatiles in plant direct (chapter I) and indirect defense (chapter II) in relation to herbivore-induced volatiles. Moreover, we investigated how volatile emission is affected by association with arbuscular mycorrhizal fungi (chapter III)

The roles of vegetative volatiles in plant defense and other interactions

In addition to water vapor, oxygen, and carbon dioxide, plants release a variety of volatile organic compounds (VOCs) from their vegetative organs. These volatiles can mediate plant interactions with the environment. For example, they can help plants defend themselves against biotic attackers, or they can act as signals within or between plants, eliciting defensive responses. Since volatiles are so frequently released by plants after herbivore damage, much effort has been made to elucidate the role of herbivore-induced volatiles. However, undamaged plants of many species emit VOCs too. In order to fully understand the function of VOCs, it is necessary to investigate the function of both induced and constitutive volatile emission. In this work, we studied the role of constitutive volatiles in plant direct (chapter I) and indirect defense (chapter II) in relation to herbivore-induced volatiles. Moreover, we investigated how volatile emission is affected by association with arbuscular mycorrhizal fungi (chapter III)

Ús d'animals als laboratoris

Treball presentat a l'assignatura de Deontologia i Veterinària Legal (21223

Exciton Footprint of Self-assembled AlGaAs Quantum Dots in Core-Shell Nanowires

Quantum-dot-in-nanowire systems constitute building blocks for advanced photonics and sensing applications. The electronic symmetry of the emitters impacts their function capabilities. Here, we study the fine structure of gallium-rich quantum dots nested in the shell of GaAs-AlGaAs core-shell nanowires. We used optical spectroscopy to resolve the splitting resulting from the exchange terms and extract the main parameters of the emitters. Our results indicate that the quantum dots can host neutral as well as charges excitonic complexes and that the excitons exhibit a slightly elongated footprint, with the main axis tilted with respect to the growth axis. GaAs-AlGaAs emitters in a nanowire are particularly promising for overcoming the limitations set by strain in other systems, with the benefit of being integrated in a versatile photonic structure

Chronic migraine long-term regular treatment with onabotulinumtoxinA: a retrospective real-life observational study up to 4 years of therapy

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Constraining the fluid source of Miocene seep carbonates using radiogenic Sr isotopes (Corella outcrop, northern Apennines, Italy)

Analisi isotopiche e biostratigrafiche su corpi carbonatici metanoderivati dell'Appennino settentrional