258 research outputs found
Nonlinear predictors for systems with bounded trajectories and delayed measurements
Novel nonlinear predictors are studied for nonlinear systems with delayed measurements without
assuming globally Lipschitz conditions or a known predictor map but requiring instead bounded state
trajectories. The delay is constant and known. These nonlinear predictors consists of a series of dynamic
filters that generate estimates of the state vector (and its maximum magnitude) at different delayed time
instants which differ from one another by a small fraction of the overall delay
Theories of leadership
“Leadership”-Konzepte finden in jüngerer Zeit wieder verstärkte Aufmerksamkeit in den Sozialwissenschaften. Relevante Beiträge entstammen der Psychologie, der Soziologie, aber auch der Ökonomik. Inzwischen ist die relevante Literatur beträchtlich angewachsen. Die vorliegende Abschlussarbeit unterscheidet zwei Teile: im ersten Teil werden verschiedene theoretische Ansätze dieser Literatur beschrieben und, angesichts vorhandener empirischer Belege, bewertet. Der zweite Teil befasst sich sehr detailliert mit einem jüngeren ökonomischen Ansatz. Hier wird auch die Rolle kulturelle Unterschiede diskutiert, die zu sehr unterschiedlichen Wahrnehmungen ausgeübter „leadership“ führen können. Im letzten Teil wird ein Vergleich von westlicher vs. nicht-westlicher Rolle von „leadership“ angestrebt.Leadership has always been and still is a subject of research which is progressively regaining attention from different disciplines. Relevant contributions from psychology, economics, and sociology have generated a voluminous literature on the topic. The structure of this essay is divided in two parts. In the first part, major theories of leadership are evaluated while, in the second part, one economic approaches of leadership (entrepreneurship) is presented more in detail. In the light of this economic perspective the thesis also discusses cultural differences and their effect on the perception of leadership. A comparison between the western and non-western culture of leadership is sketched in the final part
Factors affecting egg consumption in young consumers
Submitted 2020-06-11 | Accepted 2020-07-09 | Available 2020-12-01https://doi.org/10.15414/afz.2020.23.mi-fpap.1-6The research was carried out on consumers aged 20 to 30 years. The survey was conducted among the young population, on a sample of 200 respondents; male (M, n = 100) and female (F, n = 100). Respondents were asked to answer three sets of questions: a) egg quality indicators; b) which are the benefits of consuming eggs compared to other animal products; and c) which are the disadvantages of consuming eggs. A Likert scale (min = 1, max = 5) was used to evaluate the responses on the factors that influence egg consumption. The respondents (M 4.50 : F 4.11; P 0.05). Interval estimation of the mean values μ in male and female populations was made. The research indicates the attributes that consumers value when choosing and buying products, which can serve as a future guide for egg producers.Keywords: consumption, egg quality, nutritional value, freshnessReferencesBao, P.P., Shu, X.O., Zheng, Y., Cai, N., Ruan, Z.X., Kai, G., Yinghao, S., Yu-Tang, G.,Wei, Z., Wei, L. (2012). Fruit, vegetable and animal intake and breast cancer risk by hormone receptor status. Nutrition Cancer, 64(6), 806-819.Barraj, L., Tran, N., Mink, P. (2009). A Comparison of Egg Consumption with Other Modifiable Coronary Heart Disease Lifestyle Risk Factors: A Relative Risk Apportionment Study. Risk Analysis, 29(3), 401-415.Bejaei, M., Wiseman, K., Cheng, K.M. (2011). Influences of demographic characteristics, attitudes, and preferences of consumers on table egg consumption in British Columbia, Canada. Poultry Science, 90(5), 1088-1095.Bertechini, A.G., Mazzucco, H. (2013). The table egg: A review. Ciência e Agrotecnologia, 37(2), 115-122.Bobetić, B. (2019). 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IMPACT OF EU REGULATIONS ON INVESTMENTS IN CROATIAN TABLE EGG PRODUCTION AND ITS COMPETITIVENESS
Abstract CRNCAN, A., J. KRISTIC and K. ZMAIC, 2014. Impact of eu regulations on investments in Croatian table egg production and its competitiveness. Bulg. J. Agric. Sci., Table egg production in Croatia is in the process of adjustment to eu standards. Direct questionnaire was aimed to determine the level of compliance of table egg production with the Council Directive 1999/74/EC, as well as to define future developments. Obtained results indicated that 85% of producers fulfilled all requirements, while 15% of producers still have not complied with regulative. Out of 85% producers that comply with eu legislative, 71% of them invested in enriched cages, which usage is already prohibited in some eu countries. Only 33% of producers used IPARD grants to invest in production facilities. This paper presents an overview of experiences of some eu countries related to implementation of regulatives and main characteristics of Croatian table egg production. Analyses are presented about costs in table egg production, egg market prices and implemented new technologies as key factors of egg production competitiveness. Based on analyzed factors, high production costs are affecting increased market price of eggs produced in Croatia, which has negative impacts on production efficiency and existence of Croatian table egg producers. In order to overcome all above stated issues, producers shall implement new technology, reduce production costs, focus on product properties that potential buyers will recognize and position themselves to meet consumers' needs
The role of oxygen in the uptake of deuterium in lithiated graphite
We investigate the mechanism of deuterium retention by lithiated graphite and its relationship to the oxygen concentration through surface sensitive experiments and atomistic simulations. Deposition of lithium on graphite yielded 5%-8% oxygen surface concentration and when subsequently irradiated with D ions at energies between 500 and 1000 eV/amu and fluences over 10(16) cm(-2) the oxygen concentration rose to between 25% and 40%. These enhanced oxygen levels were reached in a few seconds compared to about 300 h when the lithiated graphite was allowed to adsorb oxygen from the ambient environment under equilibrium conditions. Irradiating graphite without lithium deposition, however, resulted in complete removal of oxygen to levels below the detection limit of XPS (e. g.
Defining the genetic control of human blood plasma N-glycome using genome-wide association study
Glycosylation is a common post-translational modification of proteins. Glycosylation is associated with a number of human diseases. Defining genetic factors altering glycosylation may provide a basis for novel approaches to diagnostic and pharmaceutical applications. Here we report a genome-wide association study of the human blood plasma N-glycome composition in up to 3811 people measured by Ultra Performance Liquid Chromatography (UPLC) technology. Starting with the 36 original traits measured by UPLC, we computed an additional 77 derived traits leading to a total of 113 glycan traits. We studied associations between these traits and genetic polymorphisms located on human autosomes. We discovered and replicated 12 loci. This allowed us to demonstrate an overlap in genetic control between total plasma protein and IgG glycosylation. The majority of revealed loci contained genes that encode enzymes directly involved in glycosylation (FUT3/FUT6, FUT8, B3GAT1, ST6GAL1, B4GALT1, ST3GAL4, MGAT3 and MGAT5) and a known regulator of plasma protein fucosylation (HNF1A). However, we also found loci that could possibly reflect other more complex aspects of glycosylation process. Functional genomic annotation suggested the role of several genes including DERL3, CHCHD10, TMEM121, IGH and IKZF1. The hypotheses we generated may serve as a starting point for further functional studies in this research area
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