Search results for "MIM"
showing 10 items of 645 documents
Predator mimicry, not conspicuousness, explains the efficacy of butterfly eyespots
2015
Large conspicuous eyespots on butterfly wings have been shown to deter predators. This has been traditionally explained by mimicry of vertebrate eyes, but recently the classic eye-mimicry hypothesis has been challenged. It is proposed that the conspicuousness of the eyespot, not mimicry, is what causes aversion due to sensory biases, neophobia or sensory overloads. We conducted an experiment to directly test whether the eye-mimicry or the conspicuousness hypothesis better explain eyespot efficacy. We used great tits ( Parus major ) as model predator, and tested their reaction towards animated images on a computer display. Birds were tested against images of butterflies without eyespots, wi…
Computational methods and theory for ion channel research
2022
Ion channels are fundamental biological devices that act as gates in order to ensure selective ion transport across cellular membranes; their operation constitutes the molecular mechanism through which basic biological functions, such as nerve signal transmission and muscle contraction, are carried out. Here, we review recent results in the field of computational research on ion channels, covering theoretical advances, state-of-the-art simulation approaches, and frontline modeling techniques. We also report on few selected applications of continuum and atomistic methods to characterize the mechanisms of permeation, selectivity, and gating in biological and model channels.
Evaluación “in vitro” del comportamiento en dentina afectada por caries de un adhesivo bioactivo/biomimético experimental frente a diversos sistemas …
2020
Debido a la gran cantidad de procedimientos adhesivos que realizamos en la clínica diaria sobre dentina afectada por caries (DAC),necesitamos perfeccionar las estrategias adhesivas, no sólo de cara a mantener la capa híbrida en buen estado sino para intentar modificarla o al menos "defenderla" de una más que probable futura filtración lateral, favoreciendo la remineralización biomimética (de dentro-afuera) o precipitación mineral a través de materiales bioactivos que reaccionen en presencia de agua. OBJETIVOS. 1. Evaluar la estabilidad adhesiva en el tiempo de un adhesivo experimental (EXP) frente a otros sistemas comerciales. El material EXP contenía bioglass dopado con fluoruro junto a pr…
Klasyczna teoria dramatu i jej wychowawcze implikacje
2009
Unet, kuolema ja reaalifantasian rajat JP Koskisen Kuinka sydän pysäytetään ja Pasi Ilmari Jääskeläisen Sielut kulkevat sateessa -teoksissa
2020
Human Activity Signatures Captured under Different Directions Using SISO and MIMO Radar Systems
2022
In this paper, we highlight and resolve the shortcomings of single-input single-output (SISO) millimeter wave (mm-Wave) radar systems for human activity recognition (HAR). A 2×2 distributed multiple-input multiple-output (MIMO) radar framework is presented to capture human activity signatures under realistic conditions in indoor environments. We propose to distribute the two pairs of collocated transmitter–receiver antennas in order to illuminate the indoor environment from different perspectives. For the proposed MIMO system, we measure the time-variant (TV) radial velocity distribution and TV mean radial velocity to observe the signatures of human activities. We deploy the Anc…
El proceso creador del actor corporal: de la gramática a la representación.
2015
La realidad teatral del siglo XX es impulsora de un cambio del paradigma actoral. Durante este siglo se pasa de un actor basado en modelos decimonónicos de tradición grecolatina, a un modelo actoral que se fundamenta en el redescubrimiento del cuerpo y en la conquista de la acción física. Esta realidad es la causa de la aparición de nuevos sistemas en relación a la corporalidad del actor, los cuales son impulsados por directores-pedagogos que buscan configurar el movimiento significativo del actor como eje de creación. Este nuevo paradigma es el punto de partida de la presente tesis, cuya metodología está fundamentada en la investigación de la práctica actoral y en la práctica artística com…
Efficient photoinduced electron transfer in a porphyrin tripod-fullerene supramolecular complex via pi-pi interactions in nonpolar media.
2010
A novel porphyrin tripod (TPZn(3)) was synthesized via "click chemistry". Three porphyrin moieties of TPZn(3) are geometrically close and linked by a flexible linker. The electron-transfer oxidation of TPZn(3) results in intramolecular pi-dimer formation between porphyrin moieties as indicated by electrochemical, vis-NIR, and ESR measurements. The cyclic voltammogram of TPZn(3) exhibited stepwise one-electron oxidation processes of three porphyrin moieties in the range from 0.58 to 0.73 V (vs SCE in CH(2)Cl(2)). When TPZn(3) was oxidized by tris(2,2'-bipyridyl)-ruthenium(III) ([Ru(bpy)(3)](3+)), the oxidized species (TPZn(3))(n+) (0n/= 3) exhibited a charge resonance band in the NIR region …
Resembling a Viper: Implications of Mimicry for Conservation of the Endangered Smooth Snake
2014
The phenomenon of Batesian mimicry, where a palatable animal gains protection against predation by resembling an unpalatable model, has been a core interest of evolutionary biologists for 150 years. An extensive range of studies has focused on revealing mechanistic aspects of mimicry (shared education and generalization of predators) and the evolutionary dynamics of mimicry systems (co-operation vs. conflict) and revealed that protective mimicry is widespread and is important for individual fitness. However, according to our knowledge, there are no case studies where mimicry theories have been applied to conservation of mimetic species. Theoretically, mimicry affects, for example, frequency…
Luova toiminta hermeneuttisena horisonttina : Kevin J. Vanhoozerin käsitys draamasta, eettisestä kasvusta ja oppimisesta
2018
The aim of this research is to analyze Kevin J. Vanhoozer’s theory of creative action as a hermeneutical viewpoint in the light of learning and ethical development. The method used in this research is systematic analysis. Vanhoozer’s understanding of action differs strongly from that of Marx and of Dewey. By turning to philosophical hermeneutics he finds a way through Aristotle’s drama theory where creative action is a basis for the Gadamerian horizon, but instead of fusing the horizons Vanhoozer sees it as the viewpoint of Bakhtinian outsider, which in turn provides an opportunity to critique the surrounding culture. The horizon becomes wider and clearer through improvisation and spontanei…