Search results for "Methods"

Comparative analysis of production and purification of homo- and hetero-polysaccharides produced by lactic acid bacteria

2013

2 figuras, 2 tablas

"The same thing over and over again in many different ways. " : case study about bilingual teaching methods in the Family Centre Klubíčko, Czech Repu…

2017

Tutkimus tähtää löytämään erilaisia kaksikielisiä opetusmetodeja ja korostamanaan niitä metodeja, jotka opettajat kuvaavat hyvin toimiviksi. Tarkoituksena on myös tarkastella tekijöitä, joita opettajat ottavat huomioon valitessaan kaksikielisen opetusmetodin. Tätä tukimusta voidaan kutsua tapaustutkimukseksi. Se toteutettiin haastatellen neljää opettajaa, jotka työskentelevät Family Centre Klubíčkossa Kroměříž:ssa, Tsekissä. Opettajat haastateltiin pareina teemahaastattelun periaatteita noudattaen. Tutkimus analysoitiin sisällöanalyysin keinoin huomioiden myös tutkimuksen visuaalinen tutkimusmateriaali. Tulokset kertovat, kuinka opettajilla on käytössään monipuolinen joukko opetusmetodeja, …

Lisämateriaali julkaisuun: Genetic colour variation visible for predators and conspecifics is concealed from humans in a polymorphic moth

2022

The definition of colour polymorphism is intuitive: genetic variants express discretely-coloured phenotypes. This classification is however elusive as humans form subjective categories or ignore differences that cannot be seen by human eyes. We demonstrate an example of a ‘cryptic morph’ in a polymorphic wood tiger moth (Arctia plantaginis), a phenomenon that may be common among well-studied species. We used pedigree data from nearly 20000 individuals to infer the inheritance of hindwing colouration. The evidence supports a single Mendelian locus with two alleles in males: WW and Wy produce the white and yy the yellow hindwing colour. The inheritance could not be resolved in females as thei…

Cluster and Periodic Calculations of the Ethene Protonation Reaction Catalyzed by theta-1 Zeolite: Influence of Method, Model Size, and Structural Co…

2001

The protonation of ethene by three different acid sites of theta-1 zeolite was theoretically studied to analyze the extent and relevance of the following aspects of heterogeneous catalysis: the local geometry of the Bronsted acid site in a particular zeolite, the size of the cluster used to model the catalyst, the degree of geometry relaxation around the active site, and the effects related to medium- and long-range interactions between the reaction site and its environment. It has been found that while the reaction energy is very sensitive to the local geometry of the site, the activation energy is mainly affected by the methodology used and by electrostatic effects on account of the carbo…

Biotechnological control methods against phytopathogenic bacteria in tomatoes

2019

An interactive surrogate-based method for computationally expensive multiobjective optimisation

2019

Many disciplines involve computationally expensive multiobjective optimisation problems. Surrogate-based methods are commonly used in the literature to alleviate the computational cost. In this paper, we develop an interactive surrogate-based method called SURROGATE-ASF to solve computationally expensive multiobjective optimisation problems. This method employs preference information of a decision-maker. Numerical results demonstrate that SURROGATE-ASF efficiently provides preferred solutions for a decision-maker. It can handle different types of problems involving for example multimodal objective functions and nonconvex and/or disconnected Pareto frontiers. peerReviewed

On GPU-accelerated fast direct solvers and their applications in image denoising

2015

Boosting for ranking data: an extension to item weighting

2021

Gli alberi decisionali sono una tecnica predittiva di machine learning particolarmente diffusa, utilizzata per prevedere delle variabili discrete (classificazione) o continue (regressione). Gli algoritmi alla base di queste tecniche sono intuitivi e interpretabili, ma anche instabili. Infatti, per rendere la classificazione più affidabile si `e soliti combinare l’output di più alberi. In letteratura, sono stati proposti diversi approcci per classificare ranking data attraverso gli alberi decisionali, ma nessuno di questi tiene conto ne dell’importanza, ne delle somiglianza dei singoli elementi di ogni ranking. L’obiettivo di questo articolo `e di proporre un’estensione ponderata del metodo …

Precise branching ratios to unbound 12C states from 12N and 12B β-decays

2009

6 pages, 2 tables, 4 figures.--PACS nrs.: 21.45.-v; 23.40.-s; 27.20.+n; 21.60.De.--Printed version published Aug 3, 2009

The bromine nuclear quadrupole moment revisited

2013

For the bromine atom and the hydrogen bromide molecule, we report results for the electric-field gradient at the bromine nucleus based on quantum-chemical calculations. Highly accurate values are obtained by using coupled-cluster methods for the treatment of electron correlation, by minimising remaining basis-set effects through the use of large atomic-orbital sets, and by taking into account relativistic effects. For hydrogen bromide, zero-point vibrational corrections are considered as well. The obtained results for the bromine electric-field gradients are used to derive values for the Br-79 quadrupole moment: 308.1 and 309.3 mb based on data for the bromine atom and hydrogen bromide, res…