Results 11 to 20 of about 6,172,609 (305)

Direct observation of a superconducting vortex diode

Nature Communications, 2023
A nonreciprocal critical current is known as the superconducting diode effect (SDE). Here, the authors use SQUID-on-tip to study SDE in a EuS/Nb bilayer and find that the stray field from magnetized EuS creates screening currents in the Nb, which lead to
Alon Gutfreund, Hisakazu Matsuki, Vadim Plastovets, Avia Noah, Laura Gorzawski, Nofar Fridman, Guang Yang, Alexander Buzdin, Oded Millo, Jason W. A. Robinson, Yonathan Anahory   +10 more
doaj   +4 more sources

Direct observation of quantum percolation dynamics

Nanophotonics, 2022
Percolation, describing critical behaviors of phase transition in a geometrical context, prompts wide investigations in natural and social networks as a fundamental model.
Feng Zhen, Wu Bing-Hong, Tang Hao, Qiao Lu-Feng, Wang Xiao-Wei, Xu Xiao-Yun, Jiao Zhi-Qiang, Gao Jun, Jin Xian-Min   +8 more
doaj   +4 more sources

Direct Observation

, 2013
Anthropologists suggest examining written material issued by or negotiated within international organizations (IOs) as “assemblages of discourses and practices, following their trajectories and histories” (Müller 2013: 8).
De Pryck, Kari, Rauch, Svenja
core   +6 more sources

Direct Observation of Paramagnons in Palladium [PDF]

Physical Review Letters, 2010
We report an inelastic neutron scattering study of the spin fluctuations in the nearly-ferromagnetic element palladium. Dispersive over-damped collective magnetic excitations or ``paramagnons'' are observed up to 128 meV. We analyze our results in terms of a Moriya-Lonzarich-type spin fluctuation model and estimate the contribution of the spin ...
Doubble, R, Hayden, SM, P., Dai, H. A., Mook, J. R., Thompson, C. D., Frost   +5 more
openaire   +4 more sources

Direct Observation of Josephson Capacitance [PDF]

Physical Review Letters, 2005
The effective capacitance has been measured in the split Cooper pair box (CPB) over its phase-gate bias plane. Our low-frequency reactive measurement scheme allows to probe purely the capacitive susceptibility due to the CPB band structure. The data are quantitatively explained using parameters determined independently by spectroscopic means.
Sillanpää, M. A., Lehtinen, T., Paila, A., Makhlin, Yu., Roschier, L., Hakonen, P. J.   +5 more
openaire   +4 more sources

Direct Action Network : against corporate globalization

, 1999
Alternative title: [Fund raising letter]. Cosponsors include: Global Exchange, Rainforest Action Network, Ruckus Society, Project Underground, National Lawyers Guild, CISPES, IWW (Seattle), Green Party (Seattle), Earth First!
Direct Action Network (DAN)
core   +3 more sources

Problems of Evidence in Ethnography. A Methodological Reflection on the Goffman/Mead Controversies (With a Proposal for Rules of Thumb)

Forum: Qualitative Social Research, 2020
The contestation of ethnographic authority in the post-truth era revolves around the credibility of ethnographic evidence. This doubting of ethnographic evidence is usually explained as the consequence of postmodern relativism coupled with political ...
Joost Beuving
doaj   +1 more source

Narrative descriptions should replace grades and numerical ratings for clinical performance in medical education in the United States

Frontiers in Psychology, 2013
Background: In medical education, evaluation of clinical performance is based almost universally on rating scales for defined aspects of performance and scores on examinations and checklists.
Janice Lynn Hanson, Adam A Rosenberg, J. Lindsey eLane   +2 more
doaj   +1 more source

Development of the systematic observation of COVID-19 mitigation (SOCOM): Assessing face covering and distancing in schools

Journal of Clinical and Translational Science, 2021
Introduction: During the COVID-19 pandemic, some K-12 schools resumed in-person classes with varying degrees of mitigation plans in the fall 2020. Physical distancing and face coverings can minimize SARS-CoV-2 spread, the virus that causes COVID-19 ...
Ricky Camplain, Nanette V. Lopez, Dan M. Cooper, Thomas L. McKenzie, Kai Zheng, Shlomit Radom-Aizik   +5 more
doaj   +1 more source

Effects of the observation method (direct v. from video) and of the presence of an observer on behavioural results in veal calves

Animal, 2013
This study aimed at assessing the effect of the observation method (direct or from video) and the effect of the presence of an observer on the behavioural results in veal calves kept on a commercial farm. To evaluate the effect of the observation method,
H. Leruste, E.A.M. Bokkers, O. Sergent, M. Wolthuis-Fillerup, C.G. van Reenen, B.J. Lensink   +5 more
doaj   +1 more source