Geophysical methods widely used in oil and gas exploration. Modeling of gravity data is used extensively to illustrate the geometry and interface between the sediments and bedrock. Which can help the salt dome, anticline folds, dome-shaped uplift of the continental platform and reef masses to be identified. There are various methods to illustrate the bedrock topography, and we will describe one of these methods in present paper. Using the upward continuation, we extract the residual gravity anomaly which in fact shows the local effect of bedrock gravity on the observed gravity. Then, according to the Oldenburg – Parker method, the residual gravity data are inversed and finally the 3D geometry the bedrock is illustrated. It should be noted that some software’s like Surfer and Excel are used in this research but the program main code is written using Matlab programming.

PURPOSE: \nThis study aimed to evaluate the cardiac autonomic dysfunction and the cardiac arrhythmia risk using heart rate variability parameters in subjects with vitamin D deficiency and low cardiovascular risk.\nMETHOD:\n105 consecutive individuals, 54 patients with low vitamin D status, 51 healthy controls, were enrolled in this study. The overall cardiac autonomic tone was quantified by using various heart rate variability parameters included mean RR interval, mean Heart Rate, mean of standard deviations of intervals for 24hours (SDNN), standard deviation of averages of intervals (SDANN),mean of standard deviation of intervals for 5minutes. (SDNNI), root mean square of difference of successive intervals (rMSSD), the proportion of intervals differing more than 50 ms (pNN50) values. The 12-lead ECG was recorded from each participant and QT intervals were measured.\nRESULTS: \nBaseline demographic profiles were similar between the two groups. The heart rate variability parameters such as mean RR interval, mean HR, SDNN, SDANN, SDNNI, rMSSD, pNN50 (%) values were not significantly different in patients with low vitamin D status versus control group. The electrocardiography analysis revealed only slight but singificant prolongation of corrected QT (QTc) intervals in the control group; however QT intervals were similar.\n\nCONCLUSION:\nHRV variables were not significantly altered in patients with vitamin D deficiency in low cardiovascular risk profile group. Further studies require evaluating these findings in other cohorts with high cardiovascular risk.

Nigella sativa or Habbatus sauda’ has many therapeutic properties especially in medicinal worlds. The herb possesses many important active compounds such as thymoquinone and high in nutritional values. Because of this, it has been used to cure many illnesses in addition of a hadith from Hazrat Muhammad (PBUH) that, ‘black seed is treatment of every disease but death’ [Al-Bukhaari and Muslim]. Hence, this mini review article is trying to briefly discuss about several aspects of medicinal properties, chemical compositions and characteristics of Nigella sativa from the literatures.

This paper focuses on the vibration analysis of composite cylindrical tank. The purpose of this study is comparison of natural frequencies with different layering and different fiber angle along the x-axis of the tank. The boundary conditions of the tank is located at the beginning and the end of tank. The tank fixed along the coordinate system (y, z) and is free in x-axis. Stability equations derived using the first-order shear deformation theory. The effect of layering and fiber angle has evaluated by using the finite element package ANSYS. The angle considered between -90 to 90 degrees also 0 to 90 degrees for position of fibers along the thickness, which distributed in the form of symmetrical and asymmetric. Finally, the natural frequencies of the tank under the effect of layering of composite in radial direction compared. The results shown that the number of layers and fiber orientions affected on the natural frequencies.

This research paper aims at finding long term effect of oxygen diffusion, varying temperatures and chloride concentrations penetration through the pores of structures made up of different types of concrete and corresponding corrosion of embedded reinforcements. The other objective of this research is to find out the strength of passive film on reinforcing steels formed in different types of concretes when exposed to above corrosion stimulating environments. This research is a continuation of previous research in which reinforced concrete slabs were exposed to various environments for duration of six months. The current research is a long term study in which similar slab specimens made up of lightweight concrete (LWC), self-compacting concrete (SCC) and ordinary concrete (OC) are used for corrosion investigations. The corrosion observations and findings of this research are novel and can prove to be extremely useful for construction industries.

The present study investigated the effect of different patterns of molar teeth extraction on learning in rats. In this study, 45 male Wistar Albino rats were randomly divided into three groups named: control group (C) with no molar extraction, group extraction I (E1) with extraction of the maxillary bilateral molars and group extraction II (E2) with extraction of the left maxillary and the right mandibular molars. Morris Water Maze experiments were used a week after extractions to investigate the spatial learning in the rats. In learning tests, the target duration (defined as the time spending in target zone) in groups C, E1 and E2 were 12.47s, 11.09s and 11.13s, respectively which showed the significant difference in group C compared with other studied groups (p < 0.05). The result for Target path length (defined as the path length in the target zone) in group C was 212.28cm which was significantly more than the results obtained in groups E1 and E2 . The target frequency (the number of entrance in target zone), mean velocity, target duration and target path length in group E2 was more than group E1 with no significant difference. This study explained the molar teeth extraction may impair the learning ability. Furthermore, the pattern of extraction may be an important factor on learning in rats.