Agenesis of distal segment of right vertebral artery: a case report.

A case is being reported in which the basilar artery was formed only by the left vertebral artery. This was detected incidentally in a female on a non contrast magnetic resonance angiogram. The right vertebral artery arose as a direct branch of the right subclavian artery but terminated blindly at the level of second cervical vertebra. The left vertebral artery which contributed to the formation of basilar artery continued as left posterior cerebral artery while right posterior cerebral artery was seen as a continuation of right posterior communicating artery. The knowledge of variations of the vertebrobasilar arterial complex is important to Clinicians, Radiologists and Surgeons operating on the great vessels and its branches, particularly vascular surgeons dealing with vertebral artery in order to prevent a vascular catastrophe

Web Traffic Perspective of State Universities of Haryana

The performance of a website is indicated directly by the web traffic it engages. Web traffic is basically the amount of data sent and received by visitors of a website and is often measured in terms of several metrics. These can be number of visitors, unique or repeated; pages per visit, duration of the visit and bounce rate etc. Visualization of this data helps in anticipating the facts like presentation of the website from end users� perspective, where the significant amount of traffic is coming from, what areas the website needs to draw users� attention from; and hence, steps for the improvement can be thought of. A range of web analytic tools are present globally to facilitate the collection and evaluation of website visitor data. In this paper, a comparative study of the web traffic of seven state universities of Haryana has been presented in analytical form using an online web analytic tool

RF Performance Enhancement of Gallium Oxide MOSFET using p-type NiO Pocket near Source and Drain Regions

The paper puts forward an impact of using p-type NiO pocket near the channel/drain and channel/source interface regions on the RF performance of the gallium oxide MOSFET. This arrangement results in smaller electric field near the respective junctions and helps to compensate for the leakages that arises from the increased value of parasitic components. The key figures of merits used in the analysis are transconductance (gm), intrinsic capacitances (gate to drain capacitance Cgd and gate to source capacitance Cgs), output conductance (gd), cut-off frequency (fT), transconductance frequency product (TFP), gain frequency product (GFP) and the gain transconductance frequency product (GTFP). The analysis was carried out by using Atlas 2D device simulator

Economics analysis of tomato cultivation under poly house and open field conditions in Haryana, India

In the present paper an attempt has been made to study the comparative economics of tomato cultivation under poly house and open field conditions in Karnal district, Haryana. Production and marketing constraints under poly house cultivation have also been identified. The primary data for the agriculture year 2013-14 were collected by personal interviews of the selected farmers with the help of a specially designed schedule. Simple statistical tool like Averages and percentages were used to compare, contrast and interpret the results properly. The overall findings of the study reveal that the cost of cultivation of tomato under poly houses was higher by Rs. 206816.90/acre as com-pared to open field conditions. At the same time, the net returns under poly houses were higher by Rs. 51097.54/acre. Farmers realized 53.71 % higher yield of tomato under poly house as compared to open field conditions. The gross return, returns over variable cost and net return were also higher by 106.94 %, 160.70 % and 48.70 %, respectively in case of poly house as compared to open field conditions. The results of the study also revealed that the tomato cultivation under poly houses has significantly contributed to the yield

Optical and Near-infrared survey of the stellar contents associated with the star-forming Complex Sh2-252

We present the analyses of the stellar contents associated with the HII region Sh2-252 using UBVRI photometry, slit and slitless spectroscopy along with the NIR data from 2MASS for an area ~1 degree x 1 degree. We studied the sub-regions of Sh2-252 which includes four compact-HII (CHII) regions, namely A, B, C and E and two clusters NGC 2175s and Teutsch 136 (Teu 136). Of the fifteen spectroscopically observed bright stars, eight have been identified as massive members of spectral class earlier than B3. From the spectro-photometric analyses, we derived the average distance of the region as 2.4+/-0.2 kpc and the reddening of the massive members is found to vary between 0.35 to 2.1 mag. We found that NGC 2175s and Teu 136, located towards the eastern edge of the complex are the sub-clusters of Sh2-252. The stellar surface density distribution in K-band shows clustering associated with the regions A, C, E, NGC 2175s and Teu 136. We have also identified the candidate ionizing sources of the CHII regions. 61 H_alpha emission sources are identified using slitless spectroscopy. The distribution of the H_alpha emission sources and candidate YSOs with IR excess on the V/(V-I) CMD shows that a majority of them have approximate ages between 0.1 - 5 Myr and masses in the range of 0.3 - 2.5 M_sun. The CMDs of the candidate YSOs in the individual regions also show an age spread of 0.1 - 5 Myr for each of them. We calculated the KLFs for the sub-regions A, C, E, NGC 2175s and Teu 136. Within errors, the KLFs for all the sub-regions are found to be similar and comparable to that of young clusters of age < 5 Myr. We also estimated the mass functions (MFs) of the PMS sample of the individual regions in the mass range of 0.3 - 2.5 M_sun. In general, the slopes of the MFs of all the sub-regions are found comparable to the Salpeter value.Comment: published in MNRA

Novel dual peptisers and curing agents derived from PET waste as N-alkyl benzene dicarboxamides for EDPM waste

149-152Ethylene-propylene-diene monomer (EPDM) is widely used in the manufacturing of various components in rubber industries and hence recycling of scrap rubber is a major problem. In the present study, EPDM rubber waste powder has been recycled successfully by using N-alkyl benzene dicarboxamides, derived from PET wasteand other additives. Three aminolysed end products namely 1,4-benzene dicarboxamide, 1,4-benzene dicarbohydrazide and N,N′‐diaminoethyl 1,4‐benzene dicarboxamidewere used as peptisers and curing agents in the EPDM waste formulations. EPDM rubber waste sheets have been prepared at comparatively low temperature using two roll mill and compression moulding machine. Tensile strength, % elongation and hardness have been found in the range 12.23-20.19 kg/cm2, 107-145 % and 46-61, respectively. It has been expected that the developed reclaimed process described in this paper will promisingly support the protection of environment and conservation of resources with favors to rubber waste generated throughout the world