Studies of developmental eff ects of mixtures of endocrine disrupters on the male reproductive system are of great concern. In this study, the reproductive eff ects of the co-administration of di-2-(ethylhexyl) phthalate (DEHP) and genistein (GEN) during pregnancy and lactation were studied in male rat off spring. Pregnant Sprague-Dawley rats were gavaged from gestation day 3 to postnatal day 2...

Bioretention systems are an important measure in sandy city construction to remove pollutants. This study collected all the operating data samples of bioretention ponds currently operation China and used Mantel test Redundancy Analysis (RDA) optimize main factors that affect changes pollutant-removal efficiency. Genetic Algorithms (GA) were Back Propagation (BP) neural network model, a predicti...

Spring barley is a key grain-fodder and feed crop, which forms an increased yield (in comparison with other crops) due to early maturity drought resistance. Many different methods for assessing environmental plasticity stability have been developed, they are reliable informative. The purpose of this study comparative characteristic parametres calculated application various on the example variet...

where Stock and Watson (call them SW1) impose the restriction that λ = 1, on the assumption that there is a random walk component in trend inflation, with an estimate of θ of at least 0.5, apparently with an upward trend in recent data. In data from 1980 onwards estimates of λ are significantly below unity, but not quantitatively far below, such that Stock and Watson’s (fixed coeffi cient) IMA ...

A self-contained proof is presented of the fact that any increasing, continuous preferences over contingent payoffs that admit a (possibly state-dependent) additive representation are scale (resp. translation) invariant if and only if they take the form of CRRA (resp. CARA) expected utility, with the probabilities and coeffi cient of risk aversion uniquely determined as part of the representati...

We present the first genuine test for a unit root (or of any other value of the autoregressive coeffi cient) within an autoregressive model for errors with given bounds that follow a martingale difference sequence. Without such bounds nontrivial tests are known not to exist. Our test is exact, we do not add other assumptions on the process. Competitors either do not control the type I error for...

Phenotypic diversity among Croatian common bean (Phaseolus vulgaris L.) landraces was assessed by analysing 12 qualitative and six quantitative traits in 338 accessions collected from all production areas in Croatia. Out of 12 qualitative morphological traits, seed coat colour was the most polymorphic among accessions having the highest Shannon’s information index and discriminating power. Out ...

In this paper the kurtosis of the logistic-exponential distribution is analyzed. All the moments of this survival distribution are finite, but do not possess closed-form expressions. The standardized fourth central moment, known as Pearson’s coeffi cient of kurtosis and often used to describe the kurtosis of a distribution, can thus also not be expressed in closed form for the logistic-exponent...

This article presents studies of the abrasive wear resistance fiber-glass composite pipes inner surface, which are laid us-ing microtunneling technology under construction drinking water pipes, irrigation and sewerage systems. Due to a very smooth have high coefficient fluid flow speed transmission through pipe low coeffi-cient roughness. When in long-term operation, movement solid particles pi...

Noodle cooking quality is an important aspect in assessing processing quality of Chinese fresh noodles. Forty-six Chinese wheat cultivars and advanced lines from the Northern Plain and the Yellow and Huai River Valleys Winter Wheat Regions were used to determine the relationship between wheat quality characters and evaluation parameters of Chinese fresh noodle cooking quality, including total o...