The paper presents the data on the hydrochemical mode and the phytoplankton community structure of the transboundary River Viliya (Neris) and two of its tributaries in the territory of the Republic of Belarus in 2011-2012. High phytoplankton biomass in the summer period was determined. For the first time, the presence of microcystin synthase genes (mcyE) was detected in the River Viliya (Neris), and four variants of microcystins were determined by the MALDI-TOF method. Similarities between the phytoplankton species composition of the River Viliya (Neris) and the Curonian Lagoon of the Baltic Sea were noted, including toxic species of cyanobacteria. It can be assumed that the phytoplankton community structure of rivers can influence formation of the algal community of downstream areas as well as in the coastal estuarine lagoons that eventually receive the water from the river.

The presence of phytoconstituents such as curcumin, oleoresin and essential oil is mainly responsible for the drug yielding potential of turmeric. Essential oil is a effective secondary metabolite of turmeric. Secondary metabolites that are contained in medicinal plants may be different in contents because of the differences in production locations. Turmeric samples were collected from different districts of Odisha consists of 453 sites covering 10 agro climatic regions at different altitudes (2.8m to 872m). The essential oil content of rhizomes of turmeric was measured. Multivariate analysis was conducted among the contents of essential oil and environmental factors such as altitude, average temperature, rainfall etc. Our work demonstrated that single factors are less effective on oil content than the combinations of factors. All the factors are correlated with the oil content, but single factors are not significantly effective as evidenced by their regression values showing little correlation with oil content. On the other hand, multivariate analysis showed more correlation (r=0.5) with oil content.

The non-linear relationship in the joint time-frequency domain has been studied for the Indian National Stock Exchange (NSE) with the international\nGold price and WTI Crude Price being converted from Dollar to Indian National Rupee based on that week’s closing exchange rate. Though a good\ncorrelation was obtained during some period, but as a whole no such cointegration relation can be found out. Using the Discrete Wavelet Analysis,\nthe data was decomposed and the presence of Granger Causal relations was\ntested. Unfortunately no significant relationships are being found. We then\nstudied the Wavelet Coherence of the two pairs viz. NSE-Nifty & Gold and\nNSE-Nifty & Crude. For different frequencies, the coherence between the\npairs have been studied. At lower frequencies, some relatively good coherence have been found.\nIn this paper, we report for the first time the co-movements between Crude\nOil, Gold and Indian Stock Market Index using Wavelet Analysis (both Discrete and Continuous), a technique which is most sophisticated and recent\nin market analysis. Thus for long term traders they can include gold and/or\ncrude in their portfolio along with NSE-Nifty index in order to decrease the\nrisk(volatility) of the portfolio for Indian Market. But for short term traders,\nit will not be effective, not to include all the three in their portfolio.

The earthworms are one of the most important soil macrofaunae that have the positive effect on soil fertility, growth, and yield of plants. The abundance and biomass of earthworms are among the biological indicators to determine soil quality. Monoculture and unbalanced use of fertilizers on tea plantations can have adverse effects on earthworm populations. Hence, it is necessary to study the population and abundance of earthworms and their relationship with soil properties. For this purpose, 58 samples from different tea plantations were taken, the numbers of earthworms were counted in four replicates by hand sorting then some physicochemical parameters of the collected solid were measured by the related procedures. In the studied areas, earthworms were observed exclusively in the two locations: Bazkiagorab Lahijan and Shekarposhteh Tonekabon. Three species of earthworms Perelia Kaznakovi, Apporectoda trapezoids from the Endogeic group, and Dendrobaena veneta species from Epigeic group were recorded from Bazkiagorab garden. Perelia Kaznakovi was also identified from Shekarposhteh Garden. The population of earthworms in the Shekarposhteh was 3 m-2. In Lahijan, however, the total population of all identified earthworm species was 22 m-2. The results of soil physicochemical analyses showed that 35% of the samples had the pH lower than 4.5 and 12% of pH was more than 6.0. Organic carbon in 51% of the soils was less than 2%. Available phosphorus in 80% of the soils was less than 25 mg/kg and 65% of the soils had the extractable potassium of less than 150 mg/kg. Finally, 76% of the soils had a medium texture, and 22% of the soils contained more than 30% clay. So, attention to soil fertility management and balanced nutrition of the tea plantation is one of the most important programs to improve soil quality and economize the existing tea gardens.

One of the progressive and currently rapidly developing methods how to improve the properties of concrete with recycled aggregate is internal curing. This means the supply of curing water directly from the inside of the concrete. This article introduces two variants of internal curing of concrete with recycled brick aggregate by pre-soaking process as a part of specific mixing course. The presented variants differ in the dosing of aggregates and water in the soaking process. Results of consistency, compressive strength, total water absorption capacity and capillary moisture content are analysed in terms of their change due to pre-soaking process, as well as due to time of processing the fresh concrete (90 minutes). The process of pre-soaking of RBA is beneficial for the consistency of concrete when evaluated immediately after mixing. For both the compressive strength and total water absorption capacity, the variant of pre-soaking is determining. Pre-soaking of only coarse RBA by amount of water derived of its absorbability (variant 1) gives better results than pre-soaking of all amount of aggregate by ½ of total mixing water (variant 2). The processing time 90 minutes does not adversely affect the compressive strength of concretes either with pre-soaked RBA or non pre-soaked RBA, even the strength increases slightly with processing time.

This article deals with the problem of reflection and transmission of shear waves at a plane interface between two dissimilar incompresssible transversely isotropic thermoelastic half-spaces. Two coupled quasi-shear waves are found to propagate due to the incompressibility of such materials. Applying appropriate boundary conditions at the plane interface, amplitude ratios of the reflected and transmitted quasi-shear waves are obtained. It has been observed that these ratios are functions of the angle of incidence, elastic and thermal parameters of the materials. These ratios are computed numerically for a particular model to see the effects of specific heat and thermal expansion.