Search results for "POINT"
showing 10 items of 4385 documents
On modified α-ϕ-fuzzy contractive mappings and an application to integral equations
2016
Abstract We introduce the notion of a modified α-ϕ-fuzzy contractive mapping and prove some results in fuzzy metric spaces for such kind of mappings. The theorems presented provide a generalization of some interesting results in the literature. Two examples and an application to integral equations are given to illustrate the usability of our theory.
Comparing reference point based interactive multiobjective optimization methods without a human decision maker
2022
AbstractInteractive multiobjective optimization methods have proven promising in solving optimization problems with conflicting objectives since they iteratively incorporate preference information of a decision maker in the search for the most preferred solution. To find the appropriate interactive method for various needs involves analysis of the strengths and weaknesses. However, extensive analysis with human decision makers may be too costly and for that reason, we propose an artificial decision maker to compare a class of popular interactive multiobjective optimization methods, i.e., reference point based methods. Without involving any human decision makers, the artificial decision make…
Conexión de la ruta de proteinquinasa C con la respuesta a estrés genotóxico
2022
El mantenimiento de la integridad genómica es un aspecto crucial para la supervivencia celular. El checkpoint de integridad del DNA es el mecanismo de vigilancia encargado de detectar la presencia de daño en el DNA y poner en marcha una respuesta celular para mantener la estabilidad genómica. Los componentes centrales del checkpoint son las quinasas sensoras ATM y ATR (Tel1 y Mec1 en S. cerevisiae) y CHK1 Y CHK2 (Chk1 y Rad53 en levadura). La correcta activación del checkpoint depende de la actividad de proteína quinasa C (PKC), tanto en células de levadura como de mamíferos. En este trabajo se ha profundizado en la relación entre PKC y la maquinaria del checkpoint de integridad del DNA, as…
In-Field LAMP Detection of Flavescence Dorée Phytoplasma in Crude Extracts of the Scaphoideus titanus Vector
2022
One of the most destructive diseases affecting grapevine in Europe is caused by Flavescence Dorée phytoplasma (FDp), which belongs to the 16Sr-V group and is a European Union quarantine pathogen. Although many molecular techniques such as loop-mediated isothermal amplification (LAMP) are widely used for the rapid detection of FDp in infected grapevine plants, there is no developed isothermal amplification assay for FDp detection in the insect vectors that are fundamental for the spread of the disease. For this reason, a simple in-field real-time LAMP protocol was optimized and developed for the specific detection of FDp in the insect vector Scaphoideus titanus. The LAMP assay was optimized …
Aspects regarding the existence of fixed points of the iterates of Stancu operators
2019
In the papers Iterates of Stancu Operators, via Contraction Principle (2002), respectively Iterates of Bernstein Operators, via Contraction Principle (2004), author I. A. Rus studied the existence of fixed points for Stancu operators Pn,α,β and Bernstein operators Bn. The aim of this paper is to find conditions for which the Stancu operators Pn,α,β are contractions on the graph, in order to demonstrate that the contraction principle can be applied for the study of the existence of fixed points for iterates of Stancu operators. The method used for this paper is the spectral method, which was also used in the paper Over-iterates of Bernstein-Stancu operators (2007), authors Gonska, Piţul and …
Expectations as Reference Points: Field Evidence from Professional Soccer
2015
We show that professional soccer players and their coaches exhibit reference-dependent behavior during matches. Controlling for the state of the match and for unobserved heterogeneity, we show on a minute-by-minute basis that players breach the rules of the game, measured by the referee’s assignment of cards, significantly more often if their teams are behind the expected match outcome, measured by preplay betting odds of large professional bookmakers. We further show that coaches implement significantly more offensive substitutions if their teams are behind expectations. Both types of behaviors impair the expected ultimate match outcome of the team, which shows that our findings do not si…
What is your couple type? Gender ideology, housework-sharing, and babies
2015
AbstractBACKGROUNDIt is increasingly acknowledged that not only gender equality but also gender ideology plays a role in explaining fertility in advanced societies. In a micro perspective, the potential mismatch between gender equality (i.e., the actual sharing taking place in a couple) and gender ideology (i.e., attitudes and beliefs regarding gender roles) may drive childbearing decisions.OBJECTIVEThis paper assesses the impact of consistency between gender equality in attitudes and equality in the division of household labour on the likelihood of having another child, for different parities.METHODSRelying on two-wave panel data of the Bulgarian, Czech, French, Hungarian, and Lithuanian G…
Company values guiding the recruitment of employees with a foreign background
2019
Purpose In this paper, the following research question is addressed: Why do business organisations recruit employees with a foreign background? This was examined in terms of the values that guide organisations and their management. The paper aims to discuss this issue. Design/methodology/approach The study focused on two businesses in Finland that are pioneers in the recruitment of immigrants. A case study approach was adopted. The research data consist of interviews and documentary data. The data were analysed using content analysis in accordance with grounded theory. Findings Companies can act as an enabling force in the integration of immigrants into the local labour market, especially …
Towards explainable interactive multiobjective optimization : R-XIMO
2022
AbstractIn interactive multiobjective optimization methods, the preferences of a decision maker are incorporated in a solution process to find solutions of interest for problems with multiple conflicting objectives. Since multiple solutions exist for these problems with various trade-offs, preferences are crucial to identify the best solution(s). However, it is not necessarily clear to the decision maker how the preferences lead to particular solutions and, by introducing explanations to interactive multiobjective optimization methods, we promote a novel paradigm of explainable interactive multiobjective optimization. As a proof of concept, we introduce a new method, R-XIMO, which provides …
Early Cognitive Profiles Predicting Reading and Arithmetic Skills in Grades 1 and 7
2020
The aim of this study was to investigate cognitive profiles composed of skills predicting the overlap between reading and arithmetic in kindergarten (phonological awareness, letter knowledge, rapid automatized naming, and counting sequence knowledge) and the relation of these profiles to reading and arithmetic skills at Grades 1 and 7. A total of four distinct cognitive profiles were identified in an unselected sample of 1,710 children aged 5–6 years: (1) high linguistic and high counting skills (39.2%), (2) low linguistic and low counting skills (25.4%), (3) high counting skills in relation to linguistic skills (15.3%), and (4) low counting skills in relation to linguistic skills (20.1%). …