Search results for "MAI"
showing 10 items of 6279 documents
An output-only stochastic parametric approach for the identification of linear and nonlinear structures under random base excitations: Advances and c…
2014
In this paper a time domain output-only Dynamic Identification approach for Civil Structures (DICS) first formulated some years ago is reviewed and presented in a more generalized form. The approach in question, suitable for multi- and single-degrees-of-freedom systems, is based on the statistical moments and on the correlation functions of the response to base random excitations. The solving equations are obtained by applying the Itô differential stochastic calculus to some functions of the response. In the previous version ([21] Cavaleri, 2006; [22] Benfratello et al., 2009), the DICS method was based on the use of two classes of models (Restricted Potential Models and Linear Mass Proport…
Biblioteca de Ciències Socials Gregori Maians
2005
Vídeo formatiu i promocional de la biblioteca de ciències Gregori Maians.
Knowledge Creation - A Perspective on the Development of Design Principles
2020
In this paper we reflect on and conceptualize on the development of design principles in a design process. We use the concept of ba to describe how design principles can be created when involving users, domain experts, designers and researchers in the design process. The study applies action design research (ADR) to design and develop a self-reflective career support tool for persons with intellectual disabilities (ID). We have applied processes of knowledge creation and their corresponding ba, the originating ba, the interacting ba, the systemizing ba and the exercising ba to conceptualize the development of design principles. Preliminary findings imply that a structured process of knowled…
Radial symmetry of minimizers to the weighted Dirichlet energy
2020
AbstractWe consider the problem of minimizing the weighted Dirichlet energy between homeomorphisms of planar annuli. A known challenge lies in the case when the weight λ depends on the independent variable z. We prove that for an increasing radial weight λ(z) the infimal energy within the class of all Sobolev homeomorphisms is the same as in the class of radially symmetric maps. For a general radial weight λ(z) we establish the same result in the case when the target is conformally thin compared to the domain. Fixing the admissible homeomorphisms on the outer boundary we establish the radial symmetry for every such weight.
Positivity, complex FIOs, and Toeplitz operators
2018
International audience; We establish a characterization of complex linear canonical transformations that are positive with respect to a pair of strictly plurisubharmonic quadratic weights. As an application, we show that the boundedness of a class of Toeplitz operators on the Bargmann space is implied by the boundedness of their Weyl symbols.
Generalized John disks
2014
Abstract We establish the basic properties of the class of generalized simply connected John domains.
Classroom Management and Loss of Time at the Lesson Start: A Preliminary Study
2013
<p style="text-align:justify">Lesson starts are transitional events which may cause management problems for teachers. In this study 131 lesson starts of equally many teachers were observed in primary and secondary schools in Finland. The results indicated that, in general, the problems were minimal. However, for various reasons lesson starts were delayed by an average of about six minutes. Calculated on this basis, the total loss of instructional time in the whole school year was about five weeks of schooling. No statistically significant relationships were observed between disturbances in the classroom and any background variable studied including grade level, classroom type,(special…
Probes for studying cholesterol binding and cell biology.
2011
Cholesterol is a multifunctional lipid in eukaryotic cells. It regulates the physical state of the phospholipid bilayer, is crucially involved in the formation of membrane microdomains, affects the activity of many membrane proteins, and is the precursor for steroid hormones and bile acids. Thus, cholesterol plays a profound role in the physiology and pathophysiology of eukaryotic cells. The cholesterol molecule has achieved evolutionary perfection to fulfill its different functions in membrane organization. Here, we review basic approaches to explore the interaction of cholesterol with proteins, with a particular focus on the high diversity of fluorescent and photoreactive cholesterol prob…
REMINET : A European, Multicenter, Phase II/III Randomized Double-Blind, Placebo-Controlled Study Evaluating Lanreotide As Maintenance Therapy after …
2017
International audience
Clostridium ģints baktēriju noteikšana dzeramajā ūdenī izmantojot Fluorescento in situ hibridizāciju
2015
Bakalaura darba mērķis bija ātri un precīzi identificēt dzeramajā ūdenī Clostridium ģints baktērijas izmantojot Fluorescento in situ hibridizāciju. Līdz ar to tika izmērīts un salīdzināts fluorescences intensitātes līmenis dažādām Clostridium sugām, kā arī citiem mikroorganismiem izmantojot Clostridium spp. specifiskas fluorescentās zondes. 92% no Clostridium acetobutylicum izmērītam šūnām, relatīvās gaismas vienības (RLU) pārsniedza 500 vienību robežu, 99% no Clostridium beijernickii un 96% no Clostridium tetahomorphum, salīdzinājumā ar Sphingomonas paucimobilis, kur tikai 2% pārsniedza 300 RLU. Veiktais variācijas analīzes tests (ANOVA) liecināja, ka starp Clostridium ģints baktērijām un …