399 research outputs found
DREAMS AND REALITY OF THE ACADEMICIAN I.G. KALINENKO IN CREATION OF DURUM WINTER WHEAT
No full textThe article gives the analysis of 40-years selection activity of the academician I.G. Kalinenko in creation of the own initial material and the varieties of turgid and durum wheat which was new for the conditions of the Rostov region. The author gives characteristics of the initial material and the varieties on productivity, adaptability and other economic-valuable traits and properties in different period of I.G. Kalinenko work. His methods of work, initial material, a number of cycles of hybridization while creation of the varieties ‘Novinka’, ‘Novinka 2’, ‘Novinka 3’, ‘Novinka 4’, ‘Donskoy Yantar’ and other have been shown in the article. The author determines the principle role of step (gradual) hybridization to combine the desired traits and properties in the single genotype with the use of the varieties and intermediate forms of own selection, obtained in the creation of such varieties as ‘Aksinit’, ‘Kurant’, ‘Agat Donskoy’, ‘lazurit’, ‘Kristella’, ‘Oniks’. Their potential productivity is 8-10 t/ha, as the productivity of the best varieties of soft winter wheat, which the scientist, talented researcher, academician I.G. Kalinenko hoped to receive, starting breeding of durum winter wheat in 1961
Is human growth hormone an ergogenic aid?
No full textGrowth hormone (GH) was first isolated from the pituitary gland in the 1940s. It is believed that athletes have been abusing GH for its anabolic and lipolytic effects since the early 1980s, at least a decade before endocrinologists began to treat adults with GH deficiency. Most of our knowledge about GH abuse is anecdotal but a number of high-profile athletes have admitted using GH. Despite its widespread abuse, there is debate about whether GH is ergogenic. Indeed most scientific studies have not shown a performance enhancing effect. This review will address why this discrepancy of opinion between athletes and scientists exists and why the author believes that the scientists are wrong.<br/
On the masses and evolutionary status of the black hole binary GX 339-4: a twin system of XTE J1550-564?
No full textWe apply the K-correction to the black hole low-mass X-ray binary (LMXB) GX 339-4 which implies MX? 6 M? by only assuming that the companion is more massive than ?0.17 M?, the lower limit allowed by applying a ‘stripped-giant’ model. This evolutionary model successfully reproduces the observed properties of the system. We obtain a maximum mass for the companion of M2? 1.1 M? and an upper limit to the mass ratio of q(=M2/MX) ? 0.125. The high X-ray activity displayed by the source suggests a relatively large mass transfer rate which, according to the model, results in M2? 0.3 M? and MX? 7 M?. We have also applied this scenario to the black hole binary XTE J1550-564, which has a similar orbital period but the donor is detected spectroscopically. The model successfully reproduces the observed stellar parameter
Review of Dwelling in the World: Family, House, and Home in Tianjin, China, 1860–1960, by Elizabeth LaCouture
No full textGreen Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care. Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Situated Architectur
The New Vorarlberger Einhof
No full textArchitecture and The Built EnvironmentArchitectureInteriors, Buildings, Citie
Tell Don't Show: The invisible plague in seventeenth-century Dutch interior paintings
No full textThroughout most of the seventeenth century plague epidemics raged through Dutch cities and took their toll in an enormous loss of life. However, seventeenth-century paintings of domestic life do not show the sorrow or the death toll, but portray healthy, thriving mothers and children in sunlit interiors. The sunny imagery of the seventeenth-century painting is so strong that it defies the historic reality of the countless plague victims. In a strange contradiction, up until the Dutch language harbours numerous references to The Plague, or pest as it is called in Dutch. My perception of the glorious Dutch Golden Age, and the sunny imagery if seventeenth-century interior paintings in particular, changed after reading the published transcripts of seventeenth-century Dutch letters written by women to their husbands at sea. What struck me most were the women's heartbreaking accounts of the loss of children due to The Plague. I have since tried to detect evidence of this daily reality in the paintings, given that art historians have warned against their deceptive realism.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Situated Architectur
Correction: Ntakolia et al. An Explainable Machine Learning Approach for COVID-19’s Impact on Mood States of Children and Adolescents during the First Lockdown in Greece. Healthcare 2022, 10, 149
No full textExclusion of an Author Argyris Stringaris was initially included as an author in the original publication [1]. However, due to his personal decision, we have excluded him from the authors and we added his contribution to the acknowledgments section. The corrected Author Contributions and Acknowledgments are shown below. Author Contributions: Conceptualization, C.N.; methodology, C.N.; software, C.N.; validation, C.N.; formal analysis, C.N., I.R., I.G., A.S. and E.L.; data curation, C.N., D.P., K.M., I.G., K.K., A.S., E.T., A.G., K.L., I.K., N.S. and G.O.; writing—original draft prepara-tion, C.N., D.P., I.R., A.S., E.L. and M.C.-T.; writing—review and editing, C.N., I.R., I.G. and M.C.-T.; visualization, C.N.; supervision, E.L.; project administration, E.L. All authors have read and agreed to the published version of the manuscript. © 2022 by the authors. Licensee MDPI, Basel, Switzerland
Unit Root Testing for AR(1) Processes
No full textThe purpose of this study is to investigate the asymptotics of a first order auto regressive unit root process, AR(1). The goal is to determine which tests could be used to test for the presence of a unit root in a first order auto regressive process. A unit root is present when the root of the characteristic equation of this process equals unity. In order to test for the presence of a unit root, we developed an understanding of the characteristics of the AR(1) process, such that the difference between a trend stationary process and a unit root process is clear. The first test that will be examined is the Dickey-Fuller test. The estimator of this test is based on Ordinary Least Square Regression and a t-test statistic, which is why we have computed an ordinary least square estimator and the test statistic to test for the presence of unit root in the first order auto regressive process. Furthermore we examined the consistency of this estimator and its asymptotic properties. The limiting distribution of the test statistic is known as the Dickey-Fuller distribution. With a Monte Carlo approach, we implemented the Dickey-Fuller test statistic in Matlab and computed the (asymptotic) power of this test. Under the assumption of Gaussian innovations (or shocks) the limiting distribution of the unit root process is the same as without the normality assumption been made. When there is a reason to assume Gaussianity of the innovations, the Likelihood Ratio test can be used to test for a unit root. The asymptotic power envelope is obtained with help of the Likelihood Ratio test, since the Neyman-Pearson lemma states that the Likelihood Ratio test is the point optimal test for simple hypotheses. By calculating the likelihood functions the test statistic was obtained, such that an explicit formula for the power envelope was found. Since each fixed alternative results in a different critical value and thus in a different unit root test, there is no uniform most powerful test available. Instead we are interested in asymptotically point optimal tests and we will analyze which of these point optimal tests is the overall best performing test. By comparing the asymptotic powercurve to the asymptotic power envelope for each fixed alternative we could draw a conclusion on which fixed alternative results in the overall best performing test. On the basis of the results of this research, it can be concluded that there does not exist a uniform most powerful test, nonetheless we can define an overall best performing test.Applied mathematicsElectrical Engineering, Mathematics and Computer Scienc
«THE DISTRICT EPISTLE» OF THE OLD BELIEVER BISHOPS, PUBLISHED ON FEBRUARY 24, 1862: BACKGROUND, AUTHOR AND CONTENT OF THE DOCUMENT
No full textCurrently, the history of the emergence of the «District Message» of the Old Believer bishops is little studied. There are also few scientific studies on the events related to the «District Message» of 1862, and the available ones are devoted to individual episodes and names. Insufficient knowledge of this topic leads to inaccuracies in research on spiritual and social thought of the late XIX—early XX century, leads to historiographical errors in the interpretation of certain phenomena. The article examines the prerequisites for the emergence and history of the publication of the "District Message" of the Old Believer bishops. After Metropolitan Ambrose of Bosno-Sarajevo joined the Old Believers and the restoration of the three-rank hierarchy among the Old Believers, a discussion began among the Old Believers-priests on acute issues of attitude to state power, the Greek-Russian Church and other Old Believers. The answers to some of these questions were published in 1862 in a document called The District Message. The «District Message» was prepared by the famous scribe I.G. Kabanov and after a small editorial revision signed by members of the Moscow Spiritual Council. Among the Old Believers of the Belokrinitsky hierarchy, the message caused discord, which in one form or another persisted for almost a hundred years and was expressed in the division of Old Believers into circle and non-circle
A step forward in the theory and practice of ICT management simulation
No full textThe popularity of animated simulation as a tool for modeling and analyzing business processes is growing. This is due to the fact that it offers a number of benefits for modeling such processes, among which the ability to capture their stochastic character, represent the changes in their characteristics in the course of time and model and visualize their dynamic behavior. The current research focuses on the application of animated simulation for the modeling of ICT (Information and Communication Technology) management processes. A number of issues in building simulation models of such processes are identified, which include the lack of generally adopted concepts and approaches and the low degree of comparability and reusability of the results of simulation studies. In order to address these issues a conceptual framework, a set of reusable simulation constructs and a step-by-step approach for simulating ICT management processes were developed as part of this research. The conceptual framework allows for capturing relevant characteristics of these processes, among which the tasks carried out as part of the processes, the workplaces at which they are carried out, the exchanged information and the used equipment. The simulation constructs, implemented as a simulation template in the ARENA simulation environment, provide the programming definitions and logic necessary to represent these characteristics in a simulation model. The step-by-step approach describes the steps that have to be taken to build such a model using the developed conceptual framework and simulation constructs. The way in which the conceptual framework, the simulation template and the step-by-step approach can be applied for building ICT management simulation models is described based on two test cases carried out in two organizations in The Netherlands.Electrical Engineering, Mathematics and Computer Scienc
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