Results 61 to 70 of about 24,332,672 (250)

Geometric phases, gauge symmetries and ray representation [PDF]

open access: yes, 2006
The conventional formulation of the non-adiabatic (Aharonov-Anandan) phase is based on the equivalence class $\{e^{i\alpha(t)}\psi(t,\vec{x})\}$ which is not a symmetry of the Schr\"{o}dinger equation.
Dirac P. A. M.   +2 more
core   +5 more sources

Classes e gerações

open access: yesCrítica Marxista, 2002
Um espectro assombra a sociedade - o espectro das classes sociais. Tidas por mortas por numerosos sociólogos, elas retornam, por vezes, para assombrar o mundo contemporâneo.
openaire   +1 more source

Scavenger Receptor Class B Type I (SR-BI) Is Involved in Vitamin E Transport across the Enterocyte*

open access: yesJournal of Biological Chemistry, 2006
Although cellular uptake of vitamin E was initially described as a passive process, recent studies in the liver and brain have shown that SR-BI (scavenger receptor class B type I) is involved in this phenomenon.
E. Reboul   +9 more
semanticscholar   +1 more source

Design of Single-Switch Inverters for Variable Resistance/Load Modulation Operation [PDF]

open access: yes, 2014
Single-Switch inverters such as the conventional Class-E inverter are often highly load sensitive, and maintain zero-voltage switching over only a narrow range of load resistances.
Al Bastami, Anas Ibrahim   +3 more
core   +1 more source

Illusions of general relativity in Brans-Dicke gravity [PDF]

open access: yes, 1999
Contrary to common belief, the standard tenet of Brans-Dicke theory reducing to general relativity when omega tends to infinity is false if the trace of the matter energy-momentum tensor vanishes.
A. Banerjee   +49 more
core   +3 more sources

Glossari per i riflessi di Black Mirror

open access: yesIm@go. A Journal of the Social Imaginary, 2019
Defined as the “twilight zone of the 21st century” (Cirucci and Vaker, 2018) Black Mirror, the British anthology science fiction tv series created by Charlie Brooker, has reached the status of a sort of philosophical classic that echoes the angst of an ...
Mariavita Cambria
doaj  

Dei, Ideologie, Media. Per una mediologia del politico

open access: yesIm@go. A Journal of the Social Imaginary, 2020
Marshall McLuhan’s insights on the potential of the media in deeply transforming every area of daily life, are the reference point of the reflection on the new forms taken by the politician in the digital age.
Guerino Bovalino
doaj  

Sia lodato il Grande Torino. La tragedia di Superga e la costruzione della comunità immaginata cattolica

open access: yesIm@go. A Journal of the Social Imaginary, 2018
On 4 May 1949, all the players of the top Italian team of the time, Il Grande Torino, died in an air crash. The tragedy of Superga seemed to be representative of Italy in the immediate post-war period and for this reason it managed to connect with almost
Daniele Serapiglia
doaj   +1 more source

Il visibile e l’immaginabile: cultura visuale, media e immaginario

open access: yesIm@go. A Journal of the Social Imaginary, 2019
Visual Culture Studies represent an innovative approach to the study of visual culture, connecting Media Studies, sociology, aesthetics, history of art, iconography. The evolution of this field of study, thanks to authors such as W.J.T. Mitchell, M. Bal,
Mario Tirino
doaj  

Analysis and Design of a Novel Broadband and High-Efficiency Class-E/FJ Power Amplifier [PDF]

open access: yesAUT Journal of Electrical Engineering
This paper presents a novel hybrid Class-E/FJ power amplifier (PA) that integrates Class-E/F PA and Class-J PA to formulate a high-efficiency as well as broadband performance.
Parastoo Rostami   +2 more
doaj   +1 more source

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