Results 71 to 80 of about 351,319 (326)

Fluxed M5-instantons in F-theory

open access: yes, 2012
We analyse the non-perturbative superpotential due to M5-brane instantons in F-theory compactifications on Calabi-Yau fourfolds. The M5 partition function is obtained via holomorphic factorisation by explicitly performing the sum over chiral 3-form ...
Akerblom   +86 more
core   +1 more source

Post- and peritraumatic stress in disaster survivors: An explorative study about the influence of individual and event characteristics across different types of disasters [PDF]

open access: yes, 2012
Background: Examination of existing research on posttraumatic adjustment after disasters suggests that survivors’ posttraumatic stress levels might be better understood by investigating the influence of the characteristics of the event experienced on ...
Alexander D   +12 more
core   +2 more sources

Successful Implementation of Environmental Policy and Governance: Understanding and Modeling Micro Governance

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Successful implementation of environmental policy and governance highly depends on the capacity to know about, build new and utilize existing governance structures. However, the theoretical tools and available methods to assess the complexity of emerging or existing structures are rather limited.
Diana Giebels   +2 more
wiley   +1 more source

Nueva formulación de la Ley de Grimm

open access: yesRevista de Filología y Lingüística de la Universidad de Costa Rica, 2006
En 1822 el erudito alemán Jacob Grimm formalizó las observaciones que antes habían sido hechas pór el lingüista danés Rasmus Rask sobre el cambio casi regular de ciertas consonantes en las lenguas germánicas. Rask y Grimm habían notado que las oclusivas 
Jack L. Wilson
doaj   +1 more source

The EU Cities Mission: A Governance Innovation for Stockholm?

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT Acknowledging that cities play a key role in climate change mitigation, the European Union (EU) launched the Cities Mission in 2021 to accelerate urban climate action. Intended as a governance innovation, it seeks to stimulate mission‐oriented governance in cities.
Lisa Sanderink   +2 more
wiley   +1 more source

The modified XXZ Heisenberg chain, conformal invariance, surface exponents of c<1 systems, and hidden symmetries of the finite chains [PDF]

open access: yes, 2003
The spin-1/2 XXZ Heisenberg chain with two types of boundary terms is considered. For the first type, the Hamiltonian is hermitian but not for the second type which includes the U_{q}[SU(2)] symmetric case. It is shown that for a certain `tuning' between
Grimm, Uwe, Rittenberg, Vladimir
core   +1 more source

A general method to improve fluorophores for live-cell and single-molecule microscopy

open access: yesNature Methods, 2014
Specific labeling of biomolecules with bright fluorophores is the keystone of fluorescence microscopy. Genetically encoded self-labeling tag proteins can be coupled to synthetic dyes inside living cells, resulting in brighter reporters than fluorescent ...
J. Grimm   +11 more
semanticscholar   +1 more source

Evaluation and treatment of mental health symptoms among unaccompanied migrant children and adolescents in the United States: A systematic review

open access: yesJCPP Advances, EarlyView.
Abstract Background Unaccompanied migrant youths are at elevated risk for exposure to trauma and related mental health challenges, but there is minimal evidence guiding best practices. We conducted a systematic review of quantitative studies that examined mental health evaluation and treatment services for unaccompanied migrant youths resettled in the ...
Natan J. Vega Potler   +3 more
wiley   +1 more source

Heat and Cold Waves in Brazil: An ERA5‐Based Analysis of Trends and Seasonality (1980–2024)

open access: yesInternational Journal of Climatology, EarlyView.
This study uses ERA5 reanalysis data to assess changes in extreme heat and cold events across Brazil from 1980 to 2024. Results reveal a sharp increase in heatwave frequency and a general decline in coldwave occurrences, though regional variations are substantial.
Alindomar Lacerda Silva, Scott Sheridan
wiley   +1 more source

Grimm Masallarındaki Cadı İmajı

open access: yesAnadolu Üniversitesi Eğitim Fakültesi dergisi, 2018
Cadı Avı Çağı denilince on beşinci yüzyılın sonlarındabaşlayan ve on dokuzuncu yüzyılın başlarında biten dönem akla gelir. Yaklaşıküç yüzyıl süren bu dönemde elli bin kadar insan yargılanıp, genelde yakılarakidam edilmiştir.
Hamdullah Şahin
doaj   +2 more sources

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