Search results for "auto"
showing 10 items of 10255 documents
Theoretical study of the NH tautomerism in free base porphyrin
1997
Abstract The NH tautomerism of free base porphyrin is investigated at the semiempirical spin-unrestricted AM1 (UAM1) and ab initio RHF/3-21G levels. The UAM1 method provides delocalized geometries for all stationary structures without imposing any symmetry constraint. RHF/3-21G geometry optimizations have to be performed under symmetry restrictions to ensure that realistic delocalized structures are obtained. Both the semiempirical and the ab initio calculations predict that the interconversion between trans tautomers proceeds in an asynchronous two-step process via intermediate cis tautomers. The cis tautomers are characterized as minima in the potential energy surface and are 8–10 kcal m…
Gli avantesti delle opere abbandonate. Georges Perec e la disseminazione dei fantasmi del romanzo
2022
The abandoned work is a form of voluntary incompletion because the interruption of the writing process is decided by the author himself. Abandonment is preceded by considerations and traces that make the process intelligible, especially when identified in avant-textual documents in which the author often not only plans the construction of the text but also reasons about it by tracing the criticalities that condition its progress. The article aims to reflect on some aspects of Georges Perec's abandoned works, showing how these are integrated within the completed works through the processes of dissemination and proliferation.
Apprentissage automatique de réseaux d'interaction à partir de données de séquences de nouvelle génération
2022
Climate change and other human-induced processes are modifying ecosystems, globally, at an ever increasing rate. Microbial communities play an important role in the functioning ecosystems, maintaining their diversity and services. These communities are shaped by the different abiotic environmental effects to which they are subjected and the biotic interactions between all community members. The ANR Next-Generation Biomonitoring (NGB) project proposed to reconstruct interaction networks from abundance measures obtained sequencing environmental DNA (eDNA) and to use these networks to monitor ecosystem change. In this thesis, conducted as part of the NGB project, I evaluate the potential of tw…
Automorphisms of hyperelliptic GAG-codes
2009
Abstract We determine the n –automorphism group of generalized algebraic-geometry codes associated with rational, elliptic and hyperelliptic function fields. Such group is, up to isomorphism, a subgroup of the automorphism group of the underlying function field.
Abuso del diritto e autonomia privata. Considerazioni critiche su una sentenza eterodossa.
2010
Il saggio, muovendo da una recente sentenza della Corte di Cassazione, sottopone ad una serrata critica la tendenza della giurisprudenza a sovrapporre l'abuso del diritto e la regola di buona fede. In particolare l'Autore evidenzia la confusione concettuale sottesa alla contaminazione tra queste due figure e denunzia il rischio che la loro anomala confluenza nell'alveo di uno schema unitario dai contenuti indefiniti offra al giudice uno strumento di sindacato sull'agire privato arbitrario, perché irriducibile ad un parametro di valutazione preventivamente definito.
Le sezioni unite chiariscono ciò che doveva essere chiaro dal 1996: l'autorità della quale si abusa può essere anche quella privata. Ma poi vanno olt…
2021
L'autore approfondisce la decisione delle sezioni unite della Cassazione, secondo le quali l’abuso di autorità cui si riferisce l’art. 609-bis, comma primo, cod. pen. presuppone una posizione di preminenza, anche di fatto e di natura privata, che l’agente strumentalizza per costringere il soggetto passivo a compiere o subire atti sessuali.
El consumo de sustancias psicoactivas en la adolescencia temprana y media. El papel de la eficacia académica y de la crianza
2020
ABSTRACT This study examines (i) the relationships between substance use and parenting style and between substance use and perceived academic self-efficacy in early and middle adolescence, (ii) the importance of these factors in predicting adolescent substance use, and (iii) the role of academic self-efficacy in the relationship between parenting styles and adolescent substance use. The sample comprised 762 adolescents (53% boys) aged 12 to 16 years (M = 13.66, SD = 1.34). The sample was selected using probabilistic cluster sampling according to type of school (secondary, public vs. semi-private) and school location in different areas of the city of Valencia (Spain). This approach accounted…
Molecular mechanisms of endomembrane trafficking in plants
2021
Abstract Endomembrane trafficking is essential for all eukaryotic cells. The best-characterized membrane trafficking organelles include the endoplasmic reticulum (ER), Golgi apparatus, early and recycling endosomes, multivesicular body, or late endosome, lysosome/vacuole, and plasma membrane. Although historically plants have given rise to cell biology, our understanding of membrane trafficking has mainly been shaped by the much more studied mammalian and yeast models. Whereas organelles and major protein families that regulate endomembrane trafficking are largely conserved across all eukaryotes, exciting variations are emerging from advances in plant cell biology research. In this review, …
MDP-Based Resource Allocation Scheme Towards a Vehicular Fog Computing with Energy Constraints
2018
As mobile applications deliver increasingly complex functionalities, the demands for even more intensive computation would quickly transcend energy capability of mobile devices. On one hand and in an attempt to address such issues, fog computing paradigm is introduced to mitigate the limited energy and computation resources available within constrained mobile devices, by moving computation resources closer to their users at the edge of the access network. On another hand, most of electric vehicles (EVs), with increasing computation, storage and energy capabilities, spend more than 90% of time on parking lots. In this paper, we conceive the basic idea of using the underutilized computation r…
Proportional and Preemption-Enabled Traffic Offloading for IP Flow Mobility: Algorithms and Performance Evaluation
2018
IP Flow Mobility (IFOM) enables a user equipment to offload data traffic at the IP flow level. Although the procedure of IFOM-based flow offloading has been specified by 3GPP, how many IP flows should be offloaded and when offloading should be performed are not defined. Consequently, IP flows may be routed to a target access network which has a strong signal strength but with backhaul congestion or insufficient access capability. In this paper, we propose two algorithms, referred to as proportional offloading (PO), and proportional and preemption-enabled offloading (PPO), respectively, for IP flow offloading in hybrid cellular and wireless local area networks. The PO algorithm decides an op…