Effect of temperature and salinity changes on the density structure and pycnocline at deepwater stations in the Southern Caspian Sea, were assessed based on field measurements data. Seasonal changes of temperature, salinity and density mainly were limited to the upper 100 m layers. Below this layer, seasonal changes of seawater parameters were minor. Vertical structure of temperature in the southern Caspian Sea waters is characterized by a significant seasonal thermocline (and pycnocline) between 20-50 m depths in summer with a vertical gradient of 16 oC. Destruction of the thermocline occurred with the general cooling of the sea surface water and deepening of the mixed layer during late of autumn and winter. Seasonal average of salinity was in a range of 12.27-12.37 PSU in period of measurements. Below level of 100 m depth, the salinity was detected between 12.3-12.54 PSU. The structures of thermohaline and pycnocline were characterized by a significant homogeneity especially in offshore stations during a period of midsummer to middle of autumn. According to high agreement between density and temperature in the Caspian Seawater, a strong seasonal pycnocline was observed in position of the thermocline.

Some nonlinear wave equations are more difficult to investigate mathematically, as no general analytical method for their solution exists. It is seen that the Exponential Time Differencing (ETD) scheme, which requires the minimum steps to achieve a given accuracy, offers a speedy method in calculation time, and has exceptional stability properties in solving nonlinear wave equations. This article solves the non-diagonal example of Fisher equation via the exponential time differencing Runge-Kutta 4 method (ETDRK4). Implementation of the method is demonstrated by short Matlab programes.

Wireless Sensor Networks (WSN) provides a bridge between the real physical and virtual world which monitors physical and environmental conditions. It contributes a wide range of potential applications to industry, science, health-care, utilities and remote monitoring. Data confidentiality and authentication are the crucial security requirements in Wireless Sensor Networks. In this paper, we represent a clustering method which effectively manages network energy and to apply Aggregation technique in the network .Clustering in Wireless Sensor Networks can greatly contribute to overall system scalability, lifetime and energy efficiency. Securely and efficiently transmitting the data is achieved by using Digital Signature using two different schemes with respect to security and energy consumption. To address the security threats, the proposed two protocols such as SET-IBS and SET-IBOOS which are based on the digital signatures are still more enhanced in terms of energy consumption and security overhead. These two proposed protocols help us to identify various attack scenarios such Content Modification, and No Attack and helps to achieve the maximum secureness. Adding to it, we also introduced Paillier Threshold Encryption which greatly extends for security. We also put forth the idea of Simulation comparison between two protocols which is more efficient than the existing one in terms of Energy consumption and therefore graphical results shows the Feasibility study. The main Principle behind these schemes is such that the Base station generates the Master key and distributes it to all the sensor nodes in the clusters. Each node in the cluster forms their Encryption key with its node Id and the common parameter generated by the Base station. The cluster head aggregates the data from all Sensor nodes and sends it to the destination Sensor nodes. Network Simulation is carried out and thus simulation confirms that the proposed protocols provide the Feasibility with respect to Security and Overhead Transmission of Data.

It is the equal amount of time spent to paid work and non paid roles and it has become complex concept nowadays. The simple definition of work life balance is : A state of equilibrium in which the demands of both a person’s job and personal life are equal being aware of different demands on time and energy knowing what values to apply to choices. In recent scenario employers are learning to give more importance to work friendly atmosphere in order to attract more employees. Current generation employees love to work in a work-friendly environment. Therefore companies have started to introduce various kinds of programmes to improve employee satisfaction.

The oil industry in Nigeria is known to be as a source of revenue and foreign exchange earning to the economy. However, while the industry is perceived as an engine of growth, it is regarded as a mixed blessing to the country. This is as a result of distortions in the environment as a result of oil spillages, contamination of agricultural lands. Based on these problems, the paper examine the qualities of surface and well waters, bottom sediments, river banks soils and some species of plants. Samples of waters, bottom sediments and riverbank soils were collected during the month of June and September 2013. These samples were sent to the laboratory for physio-chemical analysis. The result shows that the values of some samples in some locations were slightly higher than the WHO permissible level for portable water, the same was found in chemical parameters, indicating some level of pollution due to oil spillage. Riverbanks soil values were slightly higher than those of the bottom sediments. Of the twenty-four species of plants evaluated, twenty were impacted slightly due to absorption of toxic nutrients from spilled oil and four non-impacted by oil pollution. To ensure the restoration of the ecosystem such preventive measures of regulating the activities of oil companies, checking pipe line vandalization, accidental discharge, pre and post-impact assessment by such oil companies should be carried out annually. Lastly, government should enforce pollution control measures and environmental friendly standards.

The general Purpose of this research, is a comparation of the safety - health status private and public bodybuilding clubs of Isfahan city from the customer s\' viewpoint. The statistical population, studied in this research is public and private bodybuilding club man customers of Isfahan. The history of their activities, from one month to one year is over. Volume of research in the statistical population private bodybuilding clubs Certain over 86 clubs and in public bodybuilding clubs over 20 clubs. Statistical sample 400 customers, who were selected by simple random. The data collection tool was a questionnaire using Cronbach\'s alpha reliability 0.944 were determined. Significance level of 0.05 was considered. Data analysis for two independent samples t-test (private and public clubs) was. Study Results showed significant differences is in safety- health status public and private bodybuilding clubs equipment (p>0.043. Also significant differences is in safety- health status public and private bodybuilding clubs users (p>0.001). but significant differences did not observe in Safety - health locker room (p< 0.441), Side of safety facilities ( p < 0.998), Safety and hygiene cleaning services (p< 0.063) and safety - health the main environment of activity (p< 0.110) in the private and public body building clubs.