نتایج جستجو برای: day var
تعداد نتایج: 364979 فیلتر نتایج به سال:
Callus cultures of Vaccinium corymbosum var. bluecrop were optimized for their isoprene derivatives production by supplementing Schenk-Hildebrandt (SH) medium with constant concentration of kinetin (2.32 microM) and two different amounts of selected auxins. Every auxin, except for IBA, used in 10-time higher concentration (2,4D, NAA, IAA, NOA) stimulated biosynthesis of beta-sitosterol and inhi...
In contrast to alternative measures of risk, value at risk (VaR) has important virtues—intelligibility, comparability, and practicality—that make it a potentially valuable tool for strategic decision making and capital management in a wide variety of industries. However, capital-management decisions in most industries—including financial services, such as property/casualty insurance— have time ...
In this paper we assess Bayesian estimation and prediction using integrated Laplace approximation (INLA) on a stochastic volatility model. This was performed through a Monte Carlo study with 1000 simulated time series. To evaluate the estimation method, two criteria were considered: the bias and square root of the mean square error (smse). The criteria used for prediction are the one step ahead...
Spatial and temporal variations of Cocconeis placentula var. euglypta in drift and periphyton were studied in mountain streams of the Córdoba Province (Argentina). The sampling program was conducted in study sites located on a confluence between different order streams during an annual cycle. Samples were also taken every two hours during the daylight period in high and low water conditions. Th...
in this paper, we investigate the performance of parametric arch class models to forecast out-of-sample var for two portfolios of tehran stock exchange (tse) companies (market portfolio and a portfolio of 50 liquid companies), using a number of distributional assumptions and sample sizes at low and high confidence levels. we find, first, that leptokurtic distributions are able to produce better...
We investigated the connectedness of returns and volatility clean energy stock, technology crude oil, natural gas, investor sentiment based on time-varying parameter vector autoregressive (TVP-VAR) approach. The empirical results indicate that average total is higher in system than return system. has a weak impact stock. Our show dynamic across assets varies with time. Furthermore, increases si...
Dark treatment of 25-day-old greenhouse-grown plants of inoculated soybean (Glycine max var. Chippewa) for 1 day reduced ATP by 70%, sucrose by 60%, total adenosine phosphates by 60%, ATP/ADP ratio by 55%, nitrogenase activity by 50%, and energy charge by 15% in nodules. The close correlation between nitrogenase activity and these energy parameters indicates that they may play a major role in r...
A sensitive and specific immunological method was developed for rapid identification of the mycelial forms of Histoplasma capsulatum var. capsulatum, H. capsulatum var. duboisii, and H. farciminosum and for separation of these pathogenic fungi from morphologically similar hyphomycetes and other fungal pathogens. This method is based on the fact that all of the Histoplasma spp. produce H and M h...
Abstract. Background: Abrasion wound is the release of skin surface caused by friction with rough surface, ginger anti-inflammatory compound so that it can accelerate healing abrasion wounds. Objective: effectiveness wounds gel application extract (Zingiber Officlinale Var Rosc) on white rats (Rattus norvegicus). Method: True experimental post test only control group design. The study was condu...
The complexity of a lattice polynomial is defined inductively, with variables having complexity 0. If p=plv'"vOk or p=plA'''/XOk is the canonical expression of the polynomial O, then the complexity c(p) = l+max{c(p~):l<-i-k}. An n-k lattice inclusion is an inclusion of the form p <-o-with c(p)<-n and c(o-)-k. In this note we use the main result of Day [1] to show that if all the congruence latt...
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