Third order differential subordination and superordination results for analytic functions involving the Srivastava-Attiya operator

In this article, by making use of the linear operator introduced and studied by Srivastava and Attiya \cite{srivastava1}, suitable classes of admissible functions are investigated and the dual properties of the third-order differential subordinations are presented. As a consequence, various sandwich-type theorems are established for a class of univalent analytic functions involving the celebrated Srivastava-Attiya transform. Relevant connections of the new results are pointed out.Comment: 16. arXiv admin note: substantial text overlap with arXiv:1809.0651

Simulated Annealing for Location Area Planning in Cellular networks

LA planning in cellular network is useful for minimizing location management cost in GSM network. In fact, size of LA can be optimized to create a balance between the LA update rate and expected paging rate within LA. To get optimal result for LA planning in cellular network simulated annealing algorithm is used. Simulated annealing give optimal results in acceptable run-time.Comment: 7 Pages, JGraph-Hoc Journa

ઊર્જાશક્તિના આર્થિક - સામાજિક લાભોઃ ભરૂચ જિલ્લાના સંદર્ભમાં અભ્યાસ

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A study of evaluation of various risk factors of retinal vein occlusion

Background:A study of various ocular & systemic risk factors in Retinal Vein Occulation (RVO) at tertiary eye care centre.Methods:A prospective study included 50 eyes of 50 patients, in period of September 2010 to August 2012. Inclusion criteria: 1. Age >25 years, 2. All newly diagnosed cases of vein occlusion. Exclusion criteria: 1. Age <25 years 2. All other ocular diseases causing significant visual impairment. A detailed history, ophthalmic & systemic examinations with all necessary investigations-as and when required were done.Results: In our study, RVOs were more common in males – 26 (52%) & in 56-65 years of age group - 16 (32%). BRVO (Branch Retinal Vein Occlusion)s were more common than CRVO (Central Retinal Vein Occlusion) - Nonischemic (26%) >Ischemic (24%). In risk factors - most common was hypertension - in 38 (76%) patients. Followed by descending order, hyperlipidemia 27 (54%) >diabetes mellitus 16 (32%) >tobacco 14 (28%) >hyper homocystinemia 4 (8%) >severe alcohol 2 (4%). The complications were more in ischemic than Nonischemic-CRVO >BRVO - they were macular edema 43 (86%) >neovascularization at iris - 14 (28%) >neovascularization at angle - 10 (20%) >neovascular glaucoma – 4 (8%). Conclusion:RVOs are more common with increasing age, in males & most common risk factor is hypertensive. Most common cause for vision loss is macular edema - ischemic >non-ischemic.

Vitamin B 12: the hidden ingredient of stroke

Background: Study aimed to evaluate the relationship between vitamin B12 and acute cerebral stroke in this study.Methods: Blood samples drawn within 24 hours after the stroke from hospitalized patients (n=100) and from 100 control cases matched for age, sex and other modifiable risk factors of stroke were analyzed. With a competitive, ECLIA, serum levels of vitamin B12 were measured. The quantitative data of the groups was compared using Analysis of Varience and Tukeys HSD post hoc test for comparison. Chi-square tests were used.Results: Median serum vitamin B12 levels were significantly lower in the patients than in the control subjects, 188.71 and 256.25 pg/ml respectively (p=0.0001). This difference was independent from other risk factors. The mean age in case group was 62.49 (SD: 12.45 years) and 56.62 (SD: 13.05 years) in control group with p=0.001. Therefore, prevalence of stroke is more between 6th and 7th decade of life. Mean serum vitamin B12 levels were lower in males (201.8pg/ml) than the females (268.pg/ml) in the case group.Conclusions: Low vitamin B12 is associated with an increased risk of stroke, and its relationship is independent from the other known modifiable stroke risk factors

Primary ovarian leiomyoma: a diagnostic dilemma

Among all benign primary ovarian smooth muscle tumors, ovarian leiomyoma is uncommon accounting for .5-1% of all tumors. most of these are unilateral small in size and generally occur in premenopausal women. this paper presents a case report of primary ovarian leiomyoma i.e. 29 years old women with complaints of abdominal pain. the right ovarian mass was histologically diagnosed as ovarian leiomyoma. unlike other smooth muscle tumors of uterine origin, there are no definite histological criteria to categorize smooth muscle tumor of ovary

Experimental Investigation of Single Cylinder Diesel Engine using Tyre Pyrolysis Oil (TPO) Blends

Increasing industrialization and motorization led to a significant rise in demand of petroleum products. As these are the non-renewable resources, it will be troublesome to predict the availability of these resources in the future, resulting in uncertainty in its supply and price and is impacting growing economies like India importing 80% of the total demand of the petroleum products. Many attempts have been made by different researchers to find out alternate fuels for Internal Combustion engines. Many alternate fuels like Biodiesel, LPG (Liquefied Petroleum Gas), CNG (Compressed Natural Gas) and Alcohol are being used nowadays by different vehicles. In this context pyrolysis of scrap tires can be used effectively to produce oil, thereby solving the problem of waste tire disposal. In the present study, Experimental investigations were carried out to evaluate the performance and emission characteristics of a single cylinder diesel engine fueled by TPO10, TPO15, and TPO20 at a crank angle 260 before TDC (Top Dead Centre) and injection pressure of 190 bar keeping the blend quality by controlling the density and viscosity of tire pyrolysis oil within permissible limit of euro IV diesel requirement. The performance and emission results were analyzed and compared with that of diesel fuel operation. The results of investigations indicate that the brake thermal efficiency of the TPO - DF blend decreases by 2 to 3%. CO emissions are well within permissible limits. HC emissions are higher by about 20 to 40% at partial load whereas smoke opacity is lower by about 20 to 30% as compared to diesel fuel

A study of cesarean section rate by using modified Robson's ten group classification system

Background: High caesarean section rate worldwide including India is matter of concern. The Robson’s Ten-group classification system allows critical analysis of caesarean deliveries according to characteristics of pregnancy. The objective was to analyze caesarean section rates in a tertiary care centre according to Modified Robson’s ten groups classification.Methods: This retrospective study was conducted at GMERS Gotri Medical College, Vadodara, Gujarat, India. All patients who delivered between August 2018 and March 2019, were included in the study. Women were classified in 10 groups according to modified Robson’s classification using their maternal characteristics and obstetric history. For each group, authors calculated the caesarean section rate within the group and its absolute and relative contribution to the overall caesarean rate.Results: Total number of delivery in my study institute in 8 months was 1531 out of them 456 was cesarean section, so the overall caesarean section rate was 29.78%. The main contributions to overall caesarean rate was 40.78% by group 5 (previous CS, singleton, cephalic, >37weeks) followed by 14.25% by group 1 (nullipara, singleton, cephalic, >37 weeks, spontaneous labour), 11.40% by group 2 (nullipara, singleton, cephalic,>37 weeks, induced or CS before labour). CS rates among various group ranges from 100% among women with abnormal lie (group 9) to 98.4% in previous CS (group 5), 84% in nulliparous breech (group 6), 58% in multiparous breech (group 7) and least 8.2% in multipara spontaneous labour (group 3).Conclusions: The Robson’s classification is easy to use. It is time to implement obstetric audit to lower the overall CS rates