Results 61 to 70 of about 79,299 (205)

Twists in U(sl(3)) and their quantizations

open access: yes, 2006
The solution of the Drinfeld equation corresponding to the full set of different carrier subalgebras in sl(3) are explicitly constructed. The obtained Hopf structures are studied. It is demonstrated that the presented twist deformations can be considered
Aschieri P Dimitrijevic M Meyer F Wess J   +12 more
core   +1 more source

Near‐Atomic Investigation on the Elemental Redistribution During Coprecipitation of Nano‐Sized Kappa‐Type and B2 Precipitates in an Al‐Alloyed Lightweight Steel

open access: yessteel research international, EarlyView.
Elemental redistribution during coprecipitation of kappa (κ)‐type and B2 precipitates in an Al‐alloyed lightweight steel is revealed by atom probe tomography (APT) and density functional theory (DFT). Fe and Ni redistribution promotes the evolution of B2 phase from NiAl‐type toward FeAl‐type and improves the stability of κ and B2 phases during ...
Bowen Zou   +6 more
wiley   +1 more source

The Embryonic Development of the Cotylean Polyclad Phrikoceros jannetae

open access: yesActa Zoologica, EarlyView.
ABSTRACT Polyclads exhibit distinct developmental modes ranging from direct to indirect development, with several transitional stages also recognised. The existence of an indirect developmental mode in polyclads with a planktonic life history stage in the form of a free‐swimming larva is unique among all free‐living flatworms and makes polyclads a ...
Mehrez Gammoudi   +6 more
wiley   +1 more source

Linear Connections on Graphs

open access: yes, 1997
In recent years, discrete spaces such as graphs attract much attention as models for physical spacetime or as models for testing the spirit of non-commutative geometry. In this work, we construct the differential algebras for graphs by extending the work
Dubois-Violette M.   +2 more
core   +1 more source

S3 guideline diagnostics and therapy of alopecia areata – Part 1: Diagnostics and epidemiology

open access: yesJDDG: Journal der Deutschen Dermatologischen Gesellschaft, EarlyView.
Summary In the project funded by the Innovation Committee at the G‐BA, the S3 guideline for the diagnosis and treatment of AA was developed between 2023 and 2025. The interdisciplinary expert panel consisted of representatives from the German Dermatological Society, in particular from the Pediatric Dermatology Working Group, the Professional ...
Ulrike Blume‐Peytavi   +13 more
wiley   +1 more source

Janus and Multifaced Supersymmetric Theories

open access: yes, 2008
We investigate the various properties Janus supersymmetric Yang-Mills theories. A novel vacuum structure is found and BPS monopoles and dyons are studied. Less supersymmetric Janus theories found before are derived by a simpler method.
A. Clark   +16 more
core   +1 more source

Dynamic Trust Formation in AI‐Enabled Automation: A Longitudinal Case Study of an Advanced Driver Assistance System

open access: yesInformation Systems Journal, EarlyView.
ABSTRACT Artificial intelligence (AI)–enabled automation is often utilised in systems that perform human tasks. While useful, these technologies pose a risk of adverse consequences in the case of AI failures as they operate in open environments, learn and are subject to continuous updates.
Kari M. Koskinen   +3 more
wiley   +1 more source

Finite-time synchronization of tunnel diode based chaotic oscillators

open access: yes, 2013
This paper addresses the problem of finite-time synchronization of tunnel diode based chaotic oscillators. After a brief investigation of its chaotic dynamics, we propose an active adaptive feedback coupling which accomplishes the synchronization of ...
Bowong, Samuel   +5 more
core   +2 more sources

The Taboo of Withdrawal: Firsthand Perspectives From Former Doctoral Candidates in Poland and Portugal

open access: yesHigher Education Quarterly, Volume 80, Issue 3, July 2026.
ABSTRACT In knowledge‐based societies, withdrawal from doctoral education is often seen and spoken about as embarrassing, undesirable, and awkward. Emerging from complex conditions—a mix of profoundly personal factors and weighty contextual factors—withdrawal tends to be a silenced or shamed process, producing a layered dynamic of taboo upon taboo upon
Patrícia Alves   +4 more
wiley   +1 more source

The Impact of Female Entrepreneurship on Economic Growth in Developing and Developed Economies

open access: yesECONOMICS
Significance. The development of women’s entrepreneurship is still a largely untapped potential for growth and prosperity. The economic role of women is crucial for growth and a more equitable distribution of wealth.
Gulvira Akybayeva   +4 more
doaj   +1 more source

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