Search results for "Direct"
showing 10 items of 2669 documents
Host Searching by Egg Parasitoids: Exploitation of Host Chemical Cues
2010
Insect parasitoids are considered “keystone species” in many ecosystems in terms of biodiversity, ecological impact and economic importance (Vinson 1985, LaSalle and Gauld 1993, Hawkins et al. 1999). In the last decades, several reviews have been published on the relationships among plants, hosts and parasitoids, which reflect a strong interest in these insects both as models for behavioral ecologists and as important organisms for classical and applied biological control programs (Hawkins et al. 1999, Vet 1999, Bale et al. 2008). The majority of these studies have considered the larval parasitoid s, besides the extensive use of egg parasitoids in biological control (Hawkins et al. 1999). I…
Zasada bezpośredniości w postępowaniu odwoławczym na tle art. 452 K.P.K. z perspektywy historycznej
2019
Zasada bezpośredniości jest kwalifikowana to tzw. zasad nieskodyfikowanych. Oznacza to, że odkodowanie treści rzeczonej zasady jest możliwe w oparciu o interpretację odpowiedniej grupy przepisów. Art. 452 k.p.k. stanowi fundamentalny przepis, który odpowiada na zasadnicze pytanie dotyczqce zakresu realizowania zasady bezpośredniości w postępowaniu odwoławczym. O zakresie obowiqzywania zasady bezpośredniości w postępowaniu przed sqdem II instancji decyduje model postępowania odwoławczego, kształtowany w oparciuo obowiqzujqce granice dopuszczalnego dowodzenia w instancji odwoławczej. Na skutek przemodelowania postępowania odwoławczego z pełniqcego funkcję wyłqcznie kontrolnq w kierunku postęp…
Exact extension of the DIRECT algorithm to multiple objectives
2019
The direct algorithm has been recognized as an efficient global optimization method which has few requirements of regularity and has proven to be globally convergent in general cases. direct has been an inspiration or has been used as a component for many multiobjective optimization algorithms. We propose an exact and as genuine as possible extension of the direct method for multiple objectives, providing a proof of global convergence (i.e., a guarantee that in an infinite time the algorithm becomes everywhere dense). We test the efficiency of the algorithm on a nonlinear and nonconvex vector function. peerReviewed
A Repository for Multirelational Dynamic Networks
2012
Nowadays, WWW contains a number of social media sites, which are growing rapidly. One of the main features of social media sites is to allow to its users creation and modification of contents of the site utilizing the offered WWW interfaces. Such contents are referred to as user generated contents and their type varies from site to site. Social media sites can be modeled as constantly evolving multirelational directed graphs. In this paper we discuss persistent data structures for such graphs, and present and analyze queries performed against the structures. We also estimate the space requirements of the proposed data structures, and compare them with the naive "store each complete snapshot…
Teaching programming by emphasizing self-direction: How did students react to the active role required of them?
2013
Lecturing is known to be a controversial form of teaching. With massed classrooms, in particular, it tends to constrain the active participation of students. One of the remedies applied to programming education is to use technology that can vitalize interaction in the classroom, while another is to base teaching increasingly on programming activities. In this article, we present the first results of an exploratory study, in which we teach programming without lectures, exams, or grades, by heavily emphasizing programming activity, and, in a pedagogical sense, student self-direction. This article investigates how students reacted to the active role required of them and what issues emerged in …
A New Augmented Lagrangian Approach for $L^1$-mean Curvature Image Denoising
2015
Variational methods are commonly used to solve noise removal problems. In this paper, we present an augmented Lagrangian-based approach that uses a discrete form of the L1-norm of the mean curvature of the graph of the image as a regularizer, discretization being achieved via a finite element method. When a particular alternating direction method of multipliers is applied to the solution of the resulting saddle-point problem, this solution reduces to an iterative sequential solution of four subproblems. These subproblems are solved using Newton’s method, the conjugate gradient method, and a partial solution variant of the cyclic reduction method. The approach considered here differs from ex…
Issues with a course that emphasizes self-direction
2013
In this paper, we examine a master's level course that emphasizes self-direction on the part of students. The course is run by weekly group assignments and requires independent work such that only one mandatory classroom session is arranged each week. Our specific research interests are how students responded to the setting of this kind and whether they demonstrated self-direction during the course. We surveyed the students' view of the course, their group work experience, and their study habits, and analyzed the resultant survey data for themes. The results suggest that while the pass rate was considerably high and the course was regarded as well-organized by the students, there were sever…
Efficiency of Corporate Income Tax Reliefs for the Investment Promotion in Latvia
2014
Corporate income tax rate in Latvia is one of the lowest in the European Union and is favourable for business. However, the government additionally uses numerous CIT reliefs to stimulate investments, to promote specific industries and investors. Total costs of these tax reliefs are high, but many of the goals declared by their introduction are not reached, suggesting that tax relief efficiency could be questioned. The efficiency of the existing and potential CIT reliefs should be regularly evaluated. The suggested criteria for such examination are – clear objective, type of taxable rent, existence of positive externality, appropriate design and potential for tax planning, costs in revenue f…
Teaching practices in early primary school : dimensions, patterns and consequences
2017
The present thesis tested the reliability and validity of the Early Childhood Classroom Observation Measure (ECCOM; Stipek & Byler, 2004, 2005), identified the profiles of teaching practices, i.e., teaching styles, and, finally, examined the predictive role of teaching styles in early primary students’ reading skills. Specifically, the thesis had four aims: first, to examine the psychometric properties of the ECCOM in Finnish and Estonian early primary school, i.e., grades 1 and 3; second, to identify the profiles of teaching practices, i.e., teaching styles, among Finnish and Estonian teachers by using a person-oriented approach; third, to compare the use of teaching styles between Finnish…