2,309 research outputs found
Multidimensional approach usefulness in early Alzheimer’s disease: advances in clinical practice
No full textSummary. Background and aim: Improving quality of life of patients with early Alzheimer’s Disease (AD) is
a primary concern of health professionals involved in dementia treatment. The aim of this study is to reveal
associations among psychiatric symptoms and wellbeing aspects, dysfunctional lifestyles and stress-related
behaviors, illness perception, personality traits, and life quality satisfaction, in order to offer a comprehensive
evaluation of psychological and behavioral aspects characterizing patients with early AD. Methods: This is a
cross-sectional study in which all the outpatients included were evaluated at the Dementia Clinic in Parma
(Italy). 21 patients with probable AD were assessed by an overall cognitive screening (Milan Overall Dementia
Assessment), the evaluation of personal and instrumental autonomy (Activities of Daily Living and Instrumental
Activities of Daily Living), and of dementia severity (Clinical Dementia Rating Scale). After the neurocognitive
assessment, a wide battery of clinical and psychological measures (Symptom Questionnaire, Pisa
Stress Questionnaire, Illness Behavior Questionnaire, Sixteen Personality Factor Questionnaire and Satisfaction
Profile) was administered to the patients. Spearman’s rho correlations between clinical and psychological
measures were performed. Results: A tendency to deny anxiety, depressive and somatic symptoms might be
present in patients with early AD. They also present with hypochondriasis, resulting in higher level of anxiety
and depression. Reduced liveliness and self-reliance as personality traits may influence the intensity of such
symptoms. Conclusions: A comprehensive assessment including psychological and clinical measures should be
routinely integrated in clinical practice for the evaluation of patients with early AD. (www.actabiomedica.it
Shape Resonance at a Lifshitz Transition for High Temperature Superconductivity in Multiband Superconductors
No full textWe discuss the shape resonance in the superconducting gaps of a two-band superconductor by tuning the chemical potential at a Lifshitz transition for Fermi surface neck collapsing and for spot appearing. The high temperature superconducting scenario for complex matter shows the coexistence of a first BCS condensate made of Cooper pairs in the first band and a second boson-like condensate made of bosons like bipolarons, in the second band where the chemical potential is tuned near a Lifshitz transition. The interband coupling controls the shape resonance in the pair exchange between the two condensates. We discuss the particular BCS-Bose crossover that occurs at the shape resonance tuning the Lifshitz parameter (the energy difference between the chemical potential and the Lifshitz topological transition) like tuning the external magnetic field for the Feshbach resonances in ultracold gases. This superconducting phase provides a particular case of topological superconductivity with multiple condensates of different winding numbers
Cinque casi di agricoltura urbana. Pisa
No full textIl territorio pisano, nel suo complesso, segue la tendenza nazionale per quello che riguarda le possibilità occupazionali legate all'agricoltura. I dati che riguardano il periodo tra il 2008 e il 2010 confermano la tenuta del settore e fanno intravedere, in prospettiva, la riscoperta dell'agricoltura periurbana. È in crescita anche l'attenzione da parte dei giovani, con un aumento delle iscrizioni negli istituti agrari e nei dipartimenti universitari, confermando una tendenza molto positiva sia sul piano culturale che, in prospettiva, occupazionale e economico. Tuttavia, il quadro che si presenta alle organizzazioni di categoria rileva comunque grandi difficoltà per le aziende che hanno contratto debiti per investimenti negli scorsi anni e che al momento non possono più far fronte alle richieste del sistema bancario, difficoltà che si presentano a maggior ragione per le nuove iniziative, che non
riescono ad avere accesso al credito. In questo contesto, piuttosto variegato e complicato, le filiere corte rappresentano una preziosa occasione per gli imprenditori, che possono valorizzare le attività dell'azienda attraverso la costruzione di una rete commerciale fortemente radicata sul territorio, sia per le istituzioni locali, che possono contribuire alla rivitalizzazione dei territori, promuovendo o assecondando la creazione di momenti collettivi di presenza delle attività agricole all'interno dei centri urbani
Ferrocene Molecular Architectures Grafted on Si(111): A Theoretical Calculation of the Standard Oxidation Potentials and Electron Transfer Rate Constant
No full textThe standard oxidation potential and the electron transfer (ET) rate constants of two silicon-based hybrid interfaces, Si(111)/organic-spacer/Ferrocene, are theoretically calculated and assessed. The dynamics of the electrochemical driven ET process is modeled in terms of the classical donor/acceptor scheme within the framework of Marcus theory. The ET rate constants, k(ET), are determined following calculation of the electron transfer matrix element, V-RP, together with the knowledge of the energy of the neutral and charge separated systems. The recently introduced Constrained Density Functional Theory (CDFT) method is exploited to optimize the structure and determine the energy of the charge separated species. Calculated ET rate constants are k(ET) = 77.8s(-1) and k(ET) = 1.3 x 10(-9) s(-1), in the case of the short and long organic-spacer, respectively
Anomalous isotope effect near a 2.5 Lifshitz transition in a multi-band multi-condensate superconductor made of a superlattice of stripes
No full textThe doping dependent isotope effect on the critical temperature (Tc ) is calculated for
multi-band multi-condensate superconductivity near a 2.5 Lifshitz transition. We consider a
superlattice of quantum stripes with finite hopping between stripes near a 2.5 Lifshitz
transition for the appearance of a new sub-band making a circular electron-like Fermi surface
pocket. We describe a particular type of BEC (Bose–Einstein Condensate) to BCS
(Bardeen–Cooper–Schrieffer condensate) crossover in multi-band/multi-condensate
superconductivity at a metal-to-metal transition that is quite different from the standard
BEC–BCS crossover at an insulator-to-metal transition. The results show that the isotope
coefficient strongly deviates from the standard BCS value 0.5, when the chemical potential is
tuned at the 2.5 Lifshitz transition for the metal-to-metal transition. The critical temperature Tc
shows a minimum due to the Fano antiresonance in the superconducting gaps and the isotope
coefficient diverges at the point where a BEC coexists with a BCS condensate. In contrast Tc
reaches its maximum and the isotope coefficient vanishes at the crossover from a polaronic
condensate to a BCS condensate in the newly appearing sub-band
Hybrid process for the depolymerization of polyethylene terephthalate (PET) from post-consumer mixed textile wastes
No full textIn this study, we developed a new process integrating glycolysis and methanolysis to depolymerize low-quality polyethylene terephthalate (PET) wastes, particularly post-consumer mixed textiles. PET is first depolymerized with ethylene glycol and a catalyst, i.e. Na2CO3, to produce bis(2-hydroxyethyl) terephthalate (BHET). This is then extracted from the glycolyzed products and a transesterification with methanol is performed, yielding dimethyl terephthalate (DMT). Finally, DMT is recovered from the solution and purified by distillation. The proposed process allows a very low weight ratio between the fibers containing PET and the ethylene glycol used in the glycolysis reaction, thus avoiding a final step of product concentration. Also, BHET dimers and trimers can be recovered together with the monomer, thus increasing the global process yield. Indeed, a global DMT yield up to 77% can be achieved with this hybrid process, which is higher than that of other chemical recycling processes currently applied to textile wastes
Correction to: When terminology hinders research: the colloquialisms of transitions of control in automated driving (Cognition, Technology & Work, (2022), 10.1007/s10111-022-00705-3)
No full textIn the original article, author affiliation published with error. The correct affiliations are: Davide Maggi—Institute for Transport Studies, Leeds, UK. Richard Romano—Institute for Transport Studies, Leeds, UK. Oliver Carsten—Institute for Transport Studies, Leeds, UK. Joost C. F. De Winter—Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, The Netherlands. The original article has been corrected.Human-Robot Interactio
Admiel Kosman, Siamo giunti a Dio
No full textInternational audienceSix poems from Israeli poet Admiel Kosman translated from the Hebrew into Italian. Selection of poems, presentation of the author, translation and notes by Davide Mano
Admiel Kosman, Siamo giunti a Dio
No full textInternational audienceSix poems from Israeli poet Admiel Kosman translated from the Hebrew into Italian. Selection of poems, presentation of the author, translation and notes by Davide Mano
Starchitecture: Scenes, Actors and Spectacles in Contemporary Cities
No full textHow and why do spectacular buildings get commissioned and procured? What are their visible urban effects? What can urban planners, architects, and policymakers learn in order to engage in more successful citymaking?
In recent years, media and critical attention has been lavished on famous architects, and the contributions of their designs to the branding of cities. The post-“Bilbao effect” global landscape is one where cities compete for the highest-profile skyscrapers, cultural projects, and high-profile developments designed by star architects whom even casual readers know by first name: Frank Gehry, Bjarke Ingels, Jean Nouvel, Zaha Hadid, Norman Foster, Rem Koolhaas. Far less is known about the decision-making processes behind these projects and their subsequent urban effects.
A unique combination of urban studies and photography, Starchitecture investigates projects designed by star architects in cities including Paris, New York, Abu Dhabi, Bilbao, and the architectural microcosm of the Vitra campus in Weil am Rhein, Germany. Author Davide Ponzini and photographer Michele Nastasi seek to explain and critique a growing global condition by revealing how starchitecture has been and continues to be deployed in cities around the world. The arguments they raise are vital to understanding the urban landscapes of today, and tomorrow
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