1,721,945 research outputs found
Michele Kerbaker e la ricezione del Rigveda nell’Italia dell’Ottocento al tempo dell’Aurora di G. Carducci
No full textAbstract: When Friedrich Schlegel approached India as the home of linguistic,
cultural, and religious perfection, he did not know, paradoxically, the
Vedic texts. The subsequent acquaintance with these texts compelled
romantic Indology to reconsider the Schlegelian model. The chief
Indologist who achieved this remodelling was Max Müller. In the second
half of the nineteenth century, the main Italian Vedists were De
Gubernatis and Kerbaker, and they had to reckon with Müller’s ideological
co-ordinates. While Müller (or maybe De Gubernatis) provided Carducci with
the first inspiration for the Vedic section of his "barbarous" ode
All’Aurora, Carducci owed Kerbaker the poetic "materials" for the final
composition of the hymn sung by the "Aryan fathers". In the following we
analyse Kerbaker's contribution to Vedic studies and the relation between
the Kerbakerian approach to Vedic world and the idea of universal history
as reflected in Carducci's ode. Relazione presentata (su invito) al Convegno Nazionale “Figure letterarie e musicali dell’India in Occidente dal Settecento a oggi” (Carmina Paduana 2011 – Carmina Indica), a c. di L. Clerici; M. Meli; P. Mura, Padova, 28-30 nov. 2011
Living With Chronic HIV Disease in the Antiretroviral Era: The Impact of Neurocognitive Impairment on Everyday Life Functions
No full textAlthough there is extensive literature around the biologic correlations of neurocognitive function in HIV/AIDS, less is known about the impact in everyday living. We conducted a systematic review of the association of neurocognitive impairment with everyday life functions in people with HIV on antiretroviral therapy. We specifically focused on attention, executive function, processing speed, and the central executive component of the working memory. We considered 3 domains of everyday functions: (1) autonomy, (2) decision making and adherence to treatment, and (3) quality of life and psychologic wellbeing. The relationship between neurocognitive impairment and mental health was examined, given its correlation with everyday life functions. Results indicate that people with HIV do experience problems with autonomy of daily living (especially if aged older than 50 years) and with decision making, and neurocognitive impairment plays a role in this regard. Psychologic wellbeing is associated with executive function and processing speed. These patients may also have a reduced quality of life, but the relationship between quality of life and cognition is uncertain or could be mediated by other factors. Neurocognitive impairment correlates with depression and anxiety; however, the relationship of cognitive performance with apathy is still controversial
The association of memory disorders and chronic HIV disease in the antiretroviral therapy era: a systematic literature review
No full textObjectives Despite recent pharmacological progress, memory impairment is still frequently reported in people living with HIV. We aimed to conduct a systematic literature review investigating the presence of impairment of (sub)components of memory function in patients prescribed highly active antiretroviral therapy (ART). Methods We adopted a cognitive neuropsychological model of memory function as the theoretical framework, distinguishing between a short-term working memory component and a long-term component of memory, along with their specific (sub)components. We systematically searched for the presence of impairment of each (sub)component in the selected papers. Careful consideration was given to study design and methods and control of covariates. Results Only the central executive component of working memory has been consistently reported to be impaired in HIV infection. The other two (sub)components, namely the phonological loop and the visuospatial sketchpad, were unimpaired. Discordant results have been obtained as to verbal and visual episodic memory, as some authors reported an association with HIV infection, whereas others did not. There is little evidence for semantic memory deficit in HIV infection, while there are suggestions that the neural substrate of implicit memory may be damaged by the effects of HIV infection and inflammation. Most studies in this area have been conducted in small samples and with poor control for covariates. Thus, conclusions regarding the association of memory dysfunction with HIV infection are hampered by methodological issues such as selection bias and unmeasured confounding. Conclusions The task remains for future research to ascertain the impact of HIV infection on memory function
Prefazione all’edizione italiana di "Vincere le abbuffate: Come superare la dipendenza dal cibo".
No full text
Second-harmonic generation in AlGaAs-on-insulator waveguides
No full textSecond-harmonic generation is demonstrated in AlGaAs-on-insulator waveguides at telecom wavelengths. Using this material platform, a maximum internal normalized efficiency of 1202 55% W −1 cm −2 is achieved for a 100 fs pulsed excitation wavelength at 1560 nm. This finding is important towards enabling new chip-scale devices for sensing, metrology, and quantum optics
Supercontinuum generation in dispersion engineered AlGaAs-on-insulator waveguides
No full textThe effect of engineering the dispersion of AlGaAs-on-insulator (AlGaAs-OI) waveguides on supercontinuum generation is investigated at telecom wavelengths. The pronounced effect the waveguide width has on the nonlinear dynamics governing the supercontinua is systematically analyzed and the coherence of the spectra verified with numerical simulations. Using dispersion engineered AlGaAs-OI waveguides, broadband supercontinua were readily obtained for pulse energies of ∼ 3 pJ and a device length of only 3 mm. The results presented here, further understanding of the design and fabrication of this novel platform and describe the soliton and dispersive wave dynamics responsible for supercontinuum generation. This study showcases the potential of AlGaAs-OI for exploring fundamental physics and realizing highly efficient, compact, nonlinear devices
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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