Search results for "600"
showing 10 items of 370 documents
A posteriori error majorants of the modeling errors for elliptic homogenization problems
2013
In this paper, we derive new two-sided a posteriori estimates of the modeling errors for linear elliptic boundary value problems with periodic coefficients solved by homogenization. Our approach is based on the concept of functional a posteriori error estimation. The estimates are obtained for the energy norm and use solely the global flux of the non-oscillatory solution of the homogenized model and solution of a boundary value problem on the cell of periodicity.
Superfluorinated ionic liquid crystals based on supramolecular, halogen-bonded anions
2016
Unconventional ionic liquid crystals in which the liquid crystallinity is enabled by halogen-bonded supramolecular anions [CnF2 n+1-I⋯I⋯I-CnF2 n+1]- are reported. The material system is unique in many ways, demonstrating for the first time 1) ionic, halogen-bonded liquid crystals, and 2) imidazolium-based ionic liquid crystals in which the occurrence of liquid crystallinity is not driven by the alkyl chains of the cation. Out of the ordinary: The high directionality of halogen bonds and the fluorophobic effect were exploited in the design and synthesis of a new family of unconventional superfluorinated ionic liquid crystals. The liquid crystallinity of the system is driven by halogen-bonded…
Maaseutukäsityöläisten sosiaalinen asema ja keskinäinen hierarkia esimodernissa Suomessa
2018
Ajatuksella ja ahkeruudella kolmen suvun vaiheista neljältä vuosisadalta
2018
Kirja-arvio teoksesta Immonen, Perttu: Suomen rahvaan historia. Kolmen suvun elämää keskiajalta 1800-luvulle. Atena Kustannus Oy, 2017. 639 sivua. ISBN 978- 952-300-335-4. Perttu Immonen yhdistää teoksessaan mielenkiintoisesti ja elävästi mikro- ja makrohistorian varhaismodernin ajan Suomessa. Hän seuraa kronologisesti kolmen eri seutukunnan: LänsiSuomen Sastamalan, Itä-Suomen Rantasalmen ja Pohjanmaan Kokkolan tapahtumia. Poikkeuksellisen ankarien aikojen kuvauksesta muodostuu moniulotteinen ja alueiden erilaisia kohtaloita tarkasteleva analyysi. nonPeerReviewed
Vallan verkostoissa : Per Brahe ja hänen klienttinsä 1600-luvun Ruotsin valtakunnassa
2011
ARIA���EAACI statement on asthma and COVID���19 (June 2, 2020)
2021
Artículo con numerosos autores sólo se mencionan el primero y el de la UAM
Design and synthesis of optical sensors for the detection of molecules with biological activity
2015
A la present tesi doctoral, titulada “Disseny i síntesi de sensors òptics per a la detecció de molècules amb activitat biològica”, s’han utilitzat diferents conceptes de la química supramolecular per a preparar compostos capaços de senyalitzar macroscópicament la presència de molècules tòxiques o actives biològicament. Així, s’han preparat quimio-sensors i quimiodosímetres per a la detecció d’anions, sals, zwitterions i agents de guerra química tal i com agents nerviosos i agents sanguinis. Addicionalment, es descriu el disseny i la construcció d’un aparell electrònic per a la monitorització automàtica d’aquests compostos. La tesi té un capítol introductori on s'expliquen els conceptes bàsi…
ETIOBE: Un protocolo de intervención para la obesidad infantil apoyado en las tecnologías de la información y la comunicación
2015
El sobrepeso y la obesidad infantil, constituyen hoy en día un grave problema de salud en todo el mundo. La elevada prevalencia de la obesidad infantil ha llevado a que países como Estados Unidos y Europa inviertan en recursos físicos y económicos para desarrollar estrategias capaces de paliar y frenar este alarmante incremento. Sin embargo, a pesar de todo este esfuerzo, la realidad muestra cómo cada vez son más las personas afectadas de este problema. Este problema adquiere una gran magnitud debido a las consecuencias físicas, psicológicas y sociales asociadas al mismo. Ante esta problemática surge la necesidad de desarrollar programas de intervención eficaces, capaces de lograr no sólo e…
Focal Cortical Lesions Induce Bidirectional Changes in the Excitability of Fast Spiking and Non Fast Spiking Cortical Interneurons
2014
A physiological brain function requires neuronal networks to operate within a well-defined range of activity. Indeed, alterations in neuronal excitability have been associated with several pathological conditions, ranging from epilepsy to neuropsychiatric disorders. Changes in inhibitory transmission are known to play a key role in the development of hyperexcitability. However it is largely unknown whether specific interneuronal subpopulations contribute differentially to such pathological condition. In the present study we investigated functional alterations of inhibitory interneurons embedded in a hyperexcitable cortical circuit at the border of chronically induced focal lesions in mouse …
Polyester microplastic fibers affect soil physical properties and erosion as a function of soil type
2021
Microplastics are recognized as a factor of global change contaminating many environmental compartments. Agricultural soils are very likely to receive microplastic contamination and are of particular concern due to their role in food production. Microplastic fibers have already been shown to be able to affect soil properties, but their effect on different soil types is poorly understood. Moreover, limited information is available on how the presence of this pollutant can affect soil water erosion processes, which are extremely important issues in many environments. In the light of this, we performed two experiments (carried out on a microscale) to investigate how the presence of polyester m…