Search results for "Mod"
showing 10 items of 39605 documents
Smilts-grants un smilts atradņu krājumu aprēķinu metodes
2019
Pētījuma mērķis ir analizēt smilts-grants un smilts krājumu izmaiņas, salīdzinot Latvijā populārākās aprēķinu metodes ar trīsdimensionālo modelēšanu datorvidē. Precīza derīgo izrakteņu tilpumu aprēķināšanas metodika ir svarīga gan derīgo izrakteņu izstrādātājam, gan izstrādi regulējošajām valstiskajām institūcijām. Iepriekšējie pētījumi analizēja derīgo izrakteņu krājumu izmaiņas, izmantojot divdimensionālos slāņu virsmu modeļus, savukārt šajā pētījumā tiek analizēta jauna pieeja sarežģītas uzbūves smilts-grants un smilts atradņu krājumu aprēķināšanā, izmantojot slāņu saguluma trīsdimensionālo modelēšanu. Pētījuma rezultātā krājumi tika aprēķināti gan ar trīsdimensionālajiem modeļiem, gan a…
Splines in convex sets under constraints of two‐sided inequality type in a hyperplane
2008
The problem of minimization of a smoothing functional under inequality constraints is considered in a hyperplane. The conditions of the existence of a solution are obtained and some properties of this solution are investigated. It is proved that the solution is a spline. The method for its construction is suggested. First Published Online: 14 Oct 2010
Distribución de la humedad del suelo mediante observaciones del satétite SMOS, modelización con SURFEX y medidas in situ sobre la Valencia Anchor Sta…
2017
La humedad del suelo es una variable importante en agricultura, hidrología, meteorología y disciplinas afines. A pesar de su importancia, es complicado obtener una representación adecuada de esta variable, principalmente por su alta variabilidad temporal y espacial. Las observaciones in situ son escasas, pero los modelos SVAT (Soil-Vegetation-Atmosphere-Transfer) pueden utilizarse para simular el comportamiento temporal y la distribución espacial de la humedad del suelo en un área determinada. El objetivo principal de esta tesis es generar campos de humedad del suelo que permitan la espacialización de las medidas puntuales de las estaciones de la Valencia Anchor Station y para ello se utili…
Percorsi della devianza e della diversità. Dall'"uomo atavico" al "senza permesso di soggiorno"
2007
Il volume, oltre a tracciare l’evoluzione dei concetti riconducibili all’ampia fenomenologia delle condotte devianti, ne rintraccia ed evidenzia i processi culturali e sociali che vi fanno da sfondo. Costituendosi come un articolata ed approfondita riflessione sulle teorie dell'agire sociale e sui i modi con cui si determinano le relazioni, il volume si sofferma sulle strategie argomentative e i processi interpretativi con cui i “devianti” – gli stranieri, i “senza fissa dimora”, i “diversi”, i “disoccupati” – costituendo proiettivamente una minaccia all’ordine sociale, sono stati nel tempo individuati, etichettati ed emarginati dalle istituzioni. Ogni capitolo è correlato, oltre che da una…
Social engagement from childhood to middle age and the effect of childhood socio-economic status on middle age social engagement: results from the Na…
2016
ABSTRACTSocial engagement has powerful effects on wellbeing, but variation in individual engagement throughout the lifecourse is wide. The trajectories may differ by gender and be affected by socio-economic status (SES). However, long-term development of social engagement is little studied and the effect of childhood SES on later-life social engagement remains obscure. We aimed to describe the social engagement development from childhood to middle age by gender and test the effect of childhood SES on middle age social engagement. Data (N=16,440, 51.3% male) are drawn from the on-going National Child Development Study, following British babies born in 1958. Social engagement was measured by …
Poderes locales, conflictividad y cambio social en la España agraria. Del Antiguo Régimen a la sociedad burguesa
1993
Se analizan los debates y las comunicaciones del VI Seminario de Historia Agraria en la sesión dedicada a los poderes locales en la España del siglo XIX. Se sitúa la discusión en la problemática del cambio social, las actitudes y la conflictividad colectivas. The various discussions and papers from the 4th Seminar on Agrarian History in its meeting about the local authorities in the 19th-century Spain, are discussed. The reflection focusses on the set of problems of the social change, on the collective attitudes, tensions and disputes. jmillan@uv.es
Reciprocal Relationships Between Perceived Supportive School Climate and Self-reported Truancy : A Longitudinal Study from Grade 6 to Grade 9
2022
This longitudinal study of 1,066 Finnish students examined bidirectional reciprocal relationships between changes in perceived supportive school climate and changes in self-reported truancy from the last year of primary school (Grade 6) to the last year of lower secondary school (Grade 9). The results of the random intercept cross-lagged panel model showed, first, that a decrease in positive perceptions of school climate at the previous time point predicted more self-reported truancy at the following time point. Second, an increase in self-reported truancy predicted less positive perceptions of supportive school climate. The study indicates that students’ perceptions of supportive school cl…
Determining Factors of High Social Connotation Crimes in the Metropolitan Region. A logistic model analysis.
2018
Resumen Las iniciativas enfocadas sólo en acciones de control policial, si bien elevan la percepción de seguridad, no actúan sobre las causas multifactoriales de un problema social dinámico y complejo. Por ende, se deben desarrollar medidas de prevención y de control, las que requieren la participación activa, sinérgica y coordinada de todos los actores involucrados en materia de seguridad pública, para disminuir los factores de riesgo que derivan en el actuar criminal. El objetivo de este trabajo es medir la incidencia de factores espaciales, temporales y elementos de contexto que caracterizan a las comunas de la Región Metropolitana de Chile (2014), en la probabilidad de ocurrencia de del…
The Impact Of Hybrid Infrastructure On Trust, Motivation And Knowledge Sharing In An Intentional Community: A Latvian Case Study
2013
The role of ICT infrastructure in enhancing innovation processes through fostering knowledge and information exchange is a controversial topic in regional science. Opposing views exist, in particular, with regard to two topics: a) the persistence of a specific role of geographical proximity in knowledge exchange processes in the age of global virtual networking; b) the capability of virtual networking to recreate the social assets of a physical community (trust, solidarity?). Existing studies primarily focus on aggregated data, rely on doubtful epistemological assumptions (e.g. the equation of information with knowledge), and neglect several epistemological principles of social cognition (e…
Social Determinants of Success: Social Media, Corporate Governance and Revenue
2019
This study examined how social media (Twitter and LinkedIn) relates to the operating revenue by investigating the effect of the use of social media by the board of directors. To tackle this question, we analyzed the mediating and moderating relationship of social media on the effect of board size in operating revenue (turnover). We studied the implications of the use of social media by the board members by using structural equation modeling (SEM). The data consisted of a random sample of 100 companies listed on the NASDAQ. The study makes two main contributions. First, it shows interesting differences in the use of social media for the operating revenue. Our results suggest that while Twitt…