Search results for "-Ag"
showing 10 items of 514 documents
Some remarks on Hilbert's (Weak) Nullstellensatz
2011
Certain remarks are provided related to weak nullstellensatz exploiting some problems proposed in Fulton’s book entitled “An Introduction to Algebraic Geometry” and elementary notions of Functional Analysis.
Bandi vivi
2014
The processes of institutionalization and objectification of post-agricultural can be made clearer by deconstructing and making the procedures triggered by the application of rules imposed by the transnational bureaucratic machine of the European Union problematic and conflicting. The construction of competitive narratives between local and global, which according to the dominant rhetoric would produce unequivocal locality, defined in its relational and contextual aspects, are the basis of the institutionalized development aid system which, just like in colonialism, becomes a field of cultural protest and construction of the neighborhood ethnorami.
Prowadzenie pozarolniczej działalności gospodarczej jako tytuł ubezpieczeń społecznych - wybrane zagadnienia
2021
Prowadzenie pozarolniczej działalności gospodarczej stanowi szczególny tytuł ubezpieczeń społecznych. Wynika to z faktu, że w zakresie podlegania ubezpieczeniom społecznym wyłącznie przedsiębiorcy (spośród wszystkich osób prowadzących pozarolniczą działalność) posiadają uprawnienia do okresowego wyłączenia obowiązku ubezpieczeń społecznych oraz zawieszenia wykonywania działalności gospodarczej, nie tylko z powodu sprawowania osobistej opieki nad dzieckiem. Z kolei w sferze opłacania składek na ubezpieczenia społeczne istnieją trzy sposoby ustalania podstawy wymiaru składek z tego tytułu (podstawa zwykła, preferencyjna i uzależniona od dochodu). Ogólnie należy stwierdzić, że prowadzenie poza…
Étude et modélisation des impacts des pratiques agricoles sur la dynamique de la distribution des communautés microbiennes des sols à l’échelle du pa…
2021
National audience; Les micro-organismes telluriques, de par leur abondance et leur richesse, jouent un rôle centraldans le fonctionnement des écosystèmes et sont des bioindicateurs intéressants pour évaluerl’impact des pratiques agricoles sur la qualité des sols. L’enjeu est de favoriser leur utilisationpour accompagner l’innovation dans le monde agricole. Cette thèse a pour objectif de permettreune meilleure compréhension des dynamiques spatiales et temporelles des communautésmicrobiennes du sol à l’échelle du paysage. Pour cela, nous proposons de modéliser cesdynamiques et de partager les connaissances aux acteurs du monde agricole via un OAD (outild’aide à la décision). Le paysage de Fén…
Lenses on very curved zones of a singular line field of ${\mathbb C}^2$ or of a singular plane field of ${\mathbb C}^3$
2020
We renormalize, using suitable lenses, small domains of a singular holomorphic line field of ${\mathbb C}^2$ or plane field of ${\mathbb C}^3$ where the curvature of a plane-field is concentrated. At a proper scale the field is almost invariant by translations. When the field is integrable, the leaves are locally almost translates of a surface that we will call {\it profile}. When the singular rays of the tangent cone (a generalization to a plane-field of the tangent cone of a singular surface is defined) are isolated, we obtain more precise results. We also generalize a result of Merle (\cite{Me}) concerning the contact order of generic polar curves with the singular level $f=0$ when $\ome…
Modeling ontologies for robotic environments
2002
On the basis of a multiple abstraction levels specification process, we developed a representational model for environmental robotic knowledge through the definition of a set of ontologies using a multi perspective approach. A general ontological model for typical indoor environments has been first developed, followed by its specialization using an implementation perspective. Actual software implementation of the ontology has been obtained via a XML-based markup language, used to build a repository for robotic environmental knowledge. Copyright 2002 ACM.
Advantages of Hyaluronic Acid and Its Combination with Other Bioactive Ingredients in Cosmeceuticals
2021
This study proposes a review on hyaluronic acid (HA) known as hyaluronan or hyaluronate and its derivates and their application in cosmetic formulations. HA is a glycosaminoglycan constituted from two disaccharides (N-acetylglucosamine and D-glucuronic acid), isolated initially from the vitreous humour of the eye, and subsequently discovered in different tissues or fluids (especially in the articular cartilage and the synovial fluid). It is ubiquitous in vertebrates, including humans, and it is involved in diverse biological processes, such as cell differentiation, embryological development, inflammation, wound healing, etc. HA has many qualities that recommend it over other substances used…
Elämänarvot keski-iässä : psykometrinen rakenne ja yhteydet persoonallisuuden piirteisiin ja psyykkiseen hyvinvointiin
2016
This study examined, first, basic human values’ and life goals’ factor structures and the reciprocal links between these measures; second, the connections between personality traits and values, and possible gender differences in these relations; and third, the relations between life goals and mental well-being, and whether life goals act as mediators in the associations between personality traits and mental well-being. The participants were drawn from the Jyväskylä Longitudinal Study of Personality and Social Development (JYLS). Data used here were collected at ages 42 and 50 (n = 212–242). The results yielded a 14- factor value structure (societal concern, tolerance, protecting nature, car…
A school-based quasi-experimental intervention to improve students' motor competence and physical fitness
2022
Background Previous research has shown that school can be an influential context to promote students' physical activity engagement, physical fitness, and motor competence. The purpose of this study was to investigate the effectiveness of a 5-month-long intervention program that aimed to increase students' motor competence and physical fitness during school days. Methods A quasi-experimental intervention design with pre- and post-tests was implemented. Altogether 325 Finnish Grade 5 (Mage = 11.26, SD = .33) students from five schools participated in the study. At the beginning of the study, students were divided into experimental and control groups on purpose. The intervention consisted of t…
Test-retest reliability of survey items on ownership and use of physical activity trackers
2019
Background: Researchers are interested in using digital tools, such as physical activity trackers (PAT), to promote and measure physical activity. PAT is a fast-growing research area that measures movement therefore, reliable questions on the ownership and use of PATs among adolescent populations need to be developed. Objective: The aim of this study was to conduct an intra-rater test-retest reliability study on PAT survey items used for surveillance purposes among young adolescents in ownership and use of smartphone applications (apps) and heart rate monitors (HRM). Methods: Young adolescents (N = 755; 11-, 13-, and 15-year-olds) in the Olomouc region of the Czech Republic were recruited t…