Results 81 to 90 of about 115,331 (340)

Non-Weyl resonance asymptotics for quantum graphs in a magnetic field

, 2010
We study asymptotical behaviour of resonances for a quantum graph consisting of a finite internal part and external leads placed into a magnetic field, in particular, the question whether their number follows the Weyl law. We prove that the presence of a
Davies, Davies, Exner, Jiří Lipovský, Kostrykin, Kuchment, Pavel Exner   +6 more
core   +1 more source

Is Czechia an immigration country? Evidence from civic integration policies

Problemy Polityki Społecznej. Studia i Dyskusje, 2023
In Western Europe, the first integration policies emerged in the 1980s as a reaction to the long-term settlement of foreign workers, originally perceived as temporary migra - tion, transforming these countries into immigration ones.
Anna Lukešová
semanticscholar   +1 more source

Does Managerial Ability Improve Environmental Performance and Overall ESG Ratings? The Impact of the European Sustainability Reporting Mandate

Business Strategy and the Environment, EarlyView.
ABSTRACT This study examines the role of managerial ability in driving environmental performance and overall environmental, social, and governance (ESG) ratings in the context of the European Union sustainability reporting regulations. Using a sample of 7242 firm‐year observations over the period 2015–2023, our results indicate a structural change in ...
Mihaela Ionașcu, Ion Ionașcu, Elena Turuianu   +2 more
wiley   +1 more source

A Multiband CPW-Fed Slot Antenna with Fractal Stub and Parasitic Line [PDF]

, 2012
This paper presents a multiband CPW-fed slot antenna with fractal stub and parasitic line. The conventional wideband slot antenna with fractal stub is modified by inserting the parasitic line surrounding the fractal stub that affects the attribution to ...
Akkaraekthalin, P., Hongnara, T., Krairiksh, M., Mahattanajatuphat, C.   +3 more
core   +1 more source

The decay law can have an irregular character [PDF]

, 2006
Within a well-known decay model describing a particle confined initially within a spherical $\delta$ potential shell, we consider the situation when the undecayed state has an unusual energy distribution decaying slowly as $k\to\infty$; the simplest ...
Albeverio S, Antoine J-P, Berry M V, Berry M V, Beskow J, Exner P, Exner P, Fonda L, Khalfin L A, Martin Fraas, Pavel Exner, Reed M, Schmidt A U, Thaller B   +13 more
core   +1 more source

Modulating the Optoelectronic Properties of Tripodal Fluorophores Through Fluorine‐Substituted Peripheral Phenyls

Chemistry – A European Journal, EarlyView.
C3‐symmetric D‐(π‐D‐π‐A)3 fluorophores featuring central triphenylamine donor, polarizable 2,5‐divinylthiophene linker, and a broad portfolio of fluorine‐based substituents show tunable (non)linear optical properties. ABSTRACT Fourteen novel tripodal fluorophores based on a central triphenylamine donor, electron‐rich, and polarizable divinylthiophene ...
Milan Klikar, Eva Prokopová, Lefteris Laleas, Giorgos Soultse, Alexandros Katsidas, Zdeňka Růžičková, Zuzana Burešová, Oldřich Pytela, Filip Bureš, Mihalis Fakis   +9 more
wiley   +1 more source

Flexible workforces and low profit margins: electronics assembly between Europe and China [PDF]

, 2016
This book investigates restructuring in the electronics industry and in particular the impact of a \u2018Chinese\u2019 labour regime on work and employ - ment practices in electronics assembly in Europe.1 Electronics is an extremely dynamic sector ...
Jan Drahokoupil, Rutvica Andrijasevic and Devi Sacchetto
core  

Attractive Rural Schools in Czechia

Australian and international journal of rural education
Current policies in education that support school choice can be a threat but also an opportunity for rural schools that are often at risk of closure or amalgamation/consolidation. Studies from Western Europe found two types of schools using the ‘capitals’
Dominik Dvořák, S. Kučerová, Ladislav Zilcher, Zdeněk Svoboda   +3 more
semanticscholar   +1 more source

Regional unemployment and investment incentives in Czechia

Geografický časopis - Geographical Journal, 2023
The paper aims to verify whether setting up the system of investment incentives in Czechia has determined the over - proportional location of supported jobs to regions with an over - proportional size of unemployed and thus meets the declared objectives ...
Milan Damborský
semanticscholar   +1 more source

Patterns and Drivers of Spanish Corporate Commitment to the UN Global Compact: A Quantitative Approach

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This paper presents a quantitative assessment of Spanish companies' commitment to the United Nations Global Compact (UNGC) and the Sustainable Development Goals (SDGs). Analyzing over 1000 participating firms, we identify prioritization patterns and examine structural factors influencing SDG adherence.
Juan Laborda, Juan Pérez
wiley   +1 more source