Search results for "Groups"
showing 10 items of 1120 documents
Algebraic (2, 2)-transformation groups
2009
This paper contains the more significant part of the article with the same title that will appear in the Volume 12 of Journal of Group Theory (2009). In this paper we determine all algebraic transformation groups $G$, defined over an algebraically closed field $\sf k$, which operate transitively, but not primitively, on a variety $\Omega$, provided the following conditions are fulfilled. We ask that the (non-effective) action of $G$ on the variety of blocks is sharply 2-transitive, as well as the action on a block $\Delta$ of the normalizer $G_\Delta$. Also we require sharp transitivity on pairs $(X,Y)$ of independent points of $\Omega$, i.e. points contained in different blocks.
Effects of a Personal Goal Management Program on School and Football Self-Determination Motivation and Satisfaction of Newcomers within a Football Tr…
2008
Abstract The aim of this study was to evaluate the effects of a personal goal-based intervention on school and football self-determination motivation and satisfaction of newcomers within football training centres. Twenty-three trainees were divided randomly into two groups, either a treatment group or a control group. The treatment proposed to the participants was the Personal Goal Management Program. Trainees’ school and football motivation and satisfaction were measured before, during and after the intervention. Results indicated a beneficial influence on football motivation and satisfaction, and overall trainee satisfaction. Methodological and applied suggestions are made to favour adjus…
The More the Merrier? The Effect of Fertility Preference on Marriage Outcomes
2019
This paper analyzes how fertility preference affects individuals' marriage outcomes. By using the selective Two-child Policy in China, which relaxed Han Chinese and only child's birth quota hence made them more attractive, I find that after the policy, the treatment group is more likely to marry same-type spouses to have more children. Moreover, to meet their fertility preference, Han Chinese and only child men searched longer and bought more expensive houses before marriage, and transferred more to their wives in terms of income and education.
Clinical profiles and quality of care of adults with type 1 diabetes according to their cardiovascular Risk: A Multicenter, Observational, retrospect…
2021
Abstract Aims The European Society of Cardiology (ESC) recently defined cardiovascular risk classes for subjects with diabetes. Aim of this study was to explore the distribution of subjects with type 1 diabetes (T1D) by cardiovascular risk groups according to the ESC classification and to describe the quality indicators of care. Methods The study is based on data extracted from electronic medical records of patients treated at the 258 Italian diabetes centers participating in the AMD (Associazione Medici Diabetologi) Annals initiative. Patients with T1D were stratified by cardiovascular risk. Measures of intermediate outcomes, intensity/appropriateness of pharmacological treatment, and over…
Understanding the scaling-up of community energy niches through Strategic Niche Management Theory: insights from Finland
2018
The growing phenomenon of civil society involvement in renewable energy generation has attracted researchers’ interest. However, rather little is known of how a diverse and relatively small sector such as community energy could scale up and promote a change in energy production. We examine this issue through the lens of Strategic Niche Management (SNM) and conceptualize community energy as a socio-technical niche that holds the potential to promote a transition to renewable energy. Drawing on interview data with members of community energy projects and experts in Finland, we identify different types of community energy projects and the factors that may prevent them from scaling up. The stud…
Determination of priority groups of indicators for threats identification to the financial security of insurance market
2017
The object of research is economic processes in insurance market of Ukraine. Generally there is no methodology for financial security assessment of the individual insurer and the insurance market in Ukraine, approved within the regulatory impact and determining financial security is not considered that hinders the practice of providing threats identification. To achieve the objectives author used the following methods: analysis and synthesis, logic synthesis, hierarchy analysis method. Methodological basis of the study is insurance theory and insurance concepts.As a result the aim of research was achieved, namely the priority groups of indicators for threats identification to the financial …
Carnaval y música: una breve semblanza de la Tuna Compostelana de 1888
2021
At the end of the 19th century, Spanish carnivals have been marked by the participation of the different tunas or also known as, estudiantinas. These groups achieved significant relevance in Galicia, especially in the city of Compostela, which, year after year, encouraged and supported the formation of groups of this nature to liven up the carnivals in the different Spanish cities. Although, different from its predecessors, the Santiago Tuna of 1888 ventured and made its mark in history, thanks to its intrepidity in having been the first Galician group that crossed the borders and enlivened the carnivals in the cities of the neighboring country, Portugal. This research, approached from a hi…
Specification and Implementation of Multicast Congestion Control Stair Protocol: Use Case with Multimedia Ubiquitous Networks
2008
Ubiquitous and efficient multicast data delivery service is essential to the success of large-scale group communication applications. In this framework, congestion control through ubiquitous networks is a hot topic for multicast real time protocols. In this paper, authors present specification and implementation of simulate TCP's AIMD with rate-based (STAIR), a multicast congestion control mechanism. Authors have enhanced this approach because they have modeled it using Unified Modeling Language with real time extensions (UML-RT) as a formal specification tool. More to the point point, they introduce a multimedia ubiquitous network which they have used as a reference model to promote their …
Unbounded derivations and *-automorphisms groups of Banach quasi *-algebras
2018
This paper is devoted to the study of unbounded derivations on Banach quasi *-algebras with a particular emphasis to the case when they are infinitesimal generators of one parameter automorphisms groups. Both of them, derivations and automorphisms are considered in a weak sense; i.e., with the use of a certain families of bounded sesquilinear forms. Conditions for a weak *-derivation to be the generator of a *-automorphisms group are given.
RIGENERAZIONE DI CITTADINE RURALI MEDIANTE IL TURISMO SOSTENIBILE: UN MODELLO DI VALUTAZIONE
2017
Rehabilitation of ancient towns poses special questions because of the existing complex physical and social ties that can be properly integrated in decisions on sustainable urban planning by multi-criteria evaluations. This work proposes a description model aiding actions and decisions for the rehabilitation of historic centres through tourism development in Sicilian hinterland areas. The decision problem concerns the town of Cianciana, which in recent years has been appreciated by strangers who stay on this town to live with the local inhabitants. Despite this international attention, at present, the town is undergoing local’s depopulation, gentrification and economic crisis. The proposed …