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

Modeling fracture cementation processes in calcite limestone: a phase-field study

The present work investigates the influence of crack opening rates on the development of four important calcite vein morphologies, namely fibrous, elongate-blocky, partially open, and euhedral, as a result of bitaxial growth in syntaxial veins using a multiphase-field model. The continued fracturing that occurs during synkinematic cementation in these veins is simulated using the geometric shift algorithm. The stark resemblance of the numerically sealed vein microstructures with the natural samples in terms of structural characteristics as well as remaining pore space signifies a dominant role of crack opening rates in the resulting morphological patterns. Further, simulation results of slow crack opening rates reveal that non-uniform fibers of variable lengths are formed when initial crack aperture is small, due to suppression of growth competition and vice versa

A Comparative Evaluation of Mono-, Di- and Triglyceride of Medium Chain Fatty Acids by Lipid/Surfactant/Water Phase Diagram, Solubility Determination and Dispersion Testing for Application in Pharmaceutical Dosage Form Development

Purpose To compare physiochemical properties of mono-, diand triglycerides of medium chain fatty acids for development of oral pharmaceutical dosage forms of poorly water-soluble drugs using phase diagrams, drug solubility, and drug dispersion experiments. Methods Phase diagrams were prepared using a monoglyceride (glycerol monocaprylocaprate: Capmul MCM ® EP), a diglyceride (glycerol dicaprylate) and two triglycerides (glycerol tricaprylate

An overview of municipal solid waste management in Jaipur city, India - Current status, challenges and recommendations

In developing countries, urbanization and rapid population growth has resulted in a substantial increase in generation of Municipal Solid Waste (MSW). Safe collection, transportation and treatment of MSW are among the major issues for Indian cities. Poor MSW management practices have negative impact on public health, environment and climate change. India currently only treats 21% of MSW while the remainder disposed in unsanitary landfill sites with no recycling and treatment technologies. This paper reviews the existing MSW management practices, challenges and provides recommendations for improving MSW management for the city of Jaipur in Rajasthan, India. Despite being the state capital as well as the top tourist destination in northern part of India, there is no detailed study which reviews the waste management strategies of this city along with identifying the key challenges. The study reveals that the major challenges for MSW management in Jaipur include uncontrolled landfilling, inadequate public participation as well as failings of implementation of MSW legislation and waste conversion. Recommendations for improvement include public awareness campaigns, public-private partnership, investment in lined landfills, recycling and waste to energy techniques. Optimization models and life cycle assessment tools should be employed to minimize cost and the environmental impact of MSW management. This study will provide policy makers and private sector stakeholders to develop strategies for future planning, investment and execution of improved MSW management in Indian cities

A comparative study of the effect of dexmedetomidine and lignocaine on hemodynamic responses and recovery following tracheal extubation in patients undergoing intracranial surgery

Background: Recovery from general anesthesia and extubation is a period of intense physiological stress for patients. The most feared complications after intracranial surgery are development of an intracranial hematoma and major cerebral edema. Both may result in cerebral hypoperfusion and brain injury. Thus, the anesthetic emergence of a neurosurgical patient should include maintenance of stable respiratory and cardiovascular parameters. Minimal reaction to the endotracheal tube removal prevents sympathetic stimulation and increases in venous pressure. In our study, we compared dexmedetomidine HCl, lignocaine HCl and placebo to blunt stress response and providing a smooth transition from extubation phase.Methods: 75 ASA Grade I and II patients aged 18-60 years scheduled for elective intracranial surgery for intracranial space occupying lesions were randomly divided into three groups of 25 each. Balanced general anesthesia was given. Inhalation anesthetic was discontinued and after return of spontaneous respiration patient in Group D received injection dexmedetomidine 0.5 µg/kg intravenous (IV), Group X received injection lignocaine 1.5 mg/kg IV and Group P received 10 ml normal saline IV over 60 sec. Heart rate (HR), mean arterial pressure (MAP), quality of extubation were measured at 1, 3, 5, 10, 15 mins interval after extubation. Emergence time and extubation time were noted and quality of extubation was evaluated on cough grading.Results: There was a significant decrease in MAPs and HR in Group D as compared to Group L and Group P (p<0.05) at all-time interval after extubation. Extubation quality score of the majority of patients was 1 in Group D, 2 in Group X, and 3 in Group P (p<0.001). The duration of emergence and extubation were comparable in all three groups. Sedation score of the most patient was 3 (44%) in Group D and 2 (56%) in Group X. Six patients in Group D and 1 patient in Group X had bradycardia.Conclusion: Single bolus dose of IV dexmedetomidine HCl 0.5 mg/kg given before tracheal extubation effectively attenuates hemodynamic response to extubation as compared to 1.5 mg/kg lignocaine HCl

Rupture uterus: a retrospective analytical study

Background: Over 500,000 women die each year due to complications of pregnancy and childbirth, a number that has remained relatively unchanged since 1990, when the first global estimates of the burden of maternal mortality were developed (WHO 2005). Objective of present study was to find out risk factors, management, related complications and associated maternal morbidity and mortality with rupture uterus.Methods: A retrospective analytical study was performed at Department of Obstetrics and Gynecology, PDU Medical College, Rajkot, Gujarat, India over a period of 3 years during 2014-2016. Evaluation of maternal age, parity, SE status, booking status, obstetric risk factors, duration of hospital stay, causes of rupture uterus, Management, intra-op and post-operative complications, maternal morbidity and mortality was done.Results: Total 29 cases of rupture uterus were found during study period. Most of them belong to age group of 21-30 (77.17%), Primipara (41.3%), Lower socioeconomic status (86.2%) and unbooked (65.52%) cases. Most common cause of rupture uterus was prolonged obstructed labor (51.72%) while scarred uterus (41.73%), transverse lie (3.44%) and injudicious use of oxytocin (3.44%) were others. In 16 cases obstetric Hysterectomy (55.17%) was performed while in 13 cases repair (44.82%) was done. We have found 2 cases of maternal death (6.89%) while study period with rupture uterus.Conclusions: Present retrospective analytical study has concluded that rupture uterus is a life threatening complication. Proper antenatal and intrapartum care, identification of high risk factors, promotion of skilled attendance at birth and institutional delivery are key factors in reduction and early diagnosis

Pregnancy outcomes following different types of bariatric surgery: A national cohort study

OBJECTIVE: To assess the impact of type of bariatric surgery on pregnancy outcomes. STUDY DESIGN: This is a national prospective observational study using the UK Obstetric Surveillance System (UKOSS). Data collection was undertaken in 200 consultant-led NHS maternity units between November 2011 and October 2012 (gastric banding), and April 2014 and March 2016 (gastric bypass and sleeve gastrectomy). Participants were pregnant women following gastric banding (n = 127), gastric bypass (n = 134) and sleeve gastrectomy (n = 29). Maternal and perinatal outcomes were compared using generalised linear and linear mixed models. Maternal outcomes included gestational weight gain, pre-eclampsia, gestational diabetes, anaemia, surgical complications. Perinatal outcomes included birthweight, small/large for gestational age (SGA/LGA), preterm birth, stillbirth. RESULTS: Maternal: Women pregnant after gastric banding and sleeve gastrectomy had a lower risk of anaemia compared with gastric bypass (banding (16 %) vs bypass (39 %): p = 0.002, sleeve (21 %) vs bypass: p = 0.04). Gestational diabetes risk was lower after gastric banding compared with gastric bypass (7 % vs 16 %, p = 0.03) despite women with banding having significantly greater weight at booking as well as gestational weight gain. Women pregnant after gastric banding and sleeve gastrectomy had a lower risk of surgical complications than after gastric bypass (banding (0.9 %) vs bypass (11.4 %): p = 0.03, sleeve (0.0 %) vs bypass: p = 0.06). Perinatal: Infants born to mothers after gastric banding had a higher birthweight than those born to mothers after gastric bypass (mean difference = 260 g (125-395), p < 0.001). Infants were more likely to be LGA if their mothers had gastric banding compared with gastric bypass or sleeve gastrectomy (banding (21 %) vs bypass (5 %): p = 0.006; banding vs sleeve (3 %): p = 0.03). Risk of preterm birth was higher in women with gastric banding compared with gastric bypass (13 % vs 8 %, p = 0.04). CONCLUSIONS: Women planning bariatric surgery should be counselled regarding the differing impacts of different types of procedure on any future pregnancy. Pre-existing gastric bypass is associated with higher rates of potentially serious surgical complications during pregnancy

Role of hypogastric artery ligation in obstetrics and gynaecology: a 20-year study at tertiary care center, Ahmedabad, western India

Background: Hypogastric artery ligation (HAL) was first introduced by the end of the 19th century to control intractable haemorrhage from the uterus of women with advanced cervical cancer. Bilateral HAL is a lifesaving procedure in massive pelvic haemorrhage.Methods: This is a retrospective study of 58 cases in which HAL was performed in the obstetrics and gynecology department at tertiary care center from January 2000 to December 2020. History, operative procedure findings, immediate and late postoperative complications, morbidity and mortality data were collected and reviewed from records.Results: In this study, total of 58 women who underwent HAL s; 53 bilateral and 5 unilateral. Fifty-three women required HAL for obstetric indications, in 5 cases it was required for gynaecological indications. 20 cases (34.5%) underwent bilateral HAL for atonic PPH, 16 cases (27.6%) during obstetric hysterectomy for morbidly adherent placenta, 5 (8.6%) for colporrhexis, 2 (3.4%) for broad ligament hematoma, 1 (1.7%) for colporrhexis and left sided broad ligament hematoma, 2 cases (3.4%) for secondary PPH and 7 cases (12.1%) for the ruptured uterus. In gynecological cases 4 cases (80%) underwent after vaginal hysterectomy to control pelvic haemorrhage and 1 case (20%) underwent HAL after myomectomy.Conclusions: HAL is an important surgical procedure and should be performed to reduce blood loss when conservation of the uterus is desired. It is also useful in controlling haemorrhage after major gynaecological surgeries and secondary hemorrhage following hysterectomy.