191 research outputs found

    Modeling Routing Overhead Generated by Wireless Proactive Routing Protocols

    Full text link
    In this paper, we present a detailed framework consisting of modeling of routing overhead generated by three widely used proactive routing protocols; Destination-Sequenced Distance Vector (DSDV), Fish-eye State Routing (FSR) and Optimized Link State Routing (OLSR). The questions like, how these protocols differ from each other on the basis of implementing different routing strategies, how neighbor estimation errors affect broadcast of route requests, how reduction of broadcast overhead achieves bandwidth, how to cope with the problem of mobility and density, etc, are attempted to respond. In all of the above mentioned situations, routing overhead and delay generated by the chosen protocols can exactly be calculated from our modeled equations. Finally, we analyze the performance of selected routing protocols using our proposed framework in NS-2 by considering different performance parameters; Route REQuest (RREQ) packet generation, End-to-End Delay (E2ED) and Normalized Routing Load (NRL) with respect to varying rates of mobility and density of nodes in the underlying wireless network

    Atypical eclampsia

    Get PDF
    Eclampsia occurring without prior signs and symptoms of preeclampsia is called atypical eclampsia. We present a case of 28 year old primigravida who developed intrapartum seizures. There was no prior clinical or biochemical evidence of preeclampsia. We have discussed the differentials of intrapartum seizures and a review of literature on atypical eclampsia

    A large chorioangioma causing intrauterine foetal demise

    Get PDF
    Chorioangioma is a benign tumour of the placenta consisting of blood vessels and stroma that proliferates beyond normally developing chorionic villi. Most of the small tumours are asymptomatic but large placental tumours are associated with unfavourable outcomes for foetus and mother. We present a case of a 23 year old primigravida who had a large chorioangioma that lead to intrauterine foetal demise. Major complications and diagnostic tools for chrioangioma have been discussed

    Wilson’s disease in pregnancy: case series and review of literature

    Get PDF
    Background: Wilson’s disease is a rare, autosomal recessive inherited disorder characterized by impaired liver metabolism of copper leading to decreased biliary excretion and incorporation of ceruloplasmin levels mainly in the liver and brain. Untreated Wilson’s disease has been shown to cause subfertility and even in cases where pregnancy occurs, it often results in spontaneous miscarriage. Case presentations: We present four cases of successful pregnancy outcomes in three patients diagnosed with Wilson’s disease along with the literature review. All the patients were managed with zinc sulphate without any postnatal complications. Conclusion: Patients with Wilson’s disease receiving regular treatment who remain asymptomatic are usually able to conceive and achieve successful outcomes. However, these pregnancies should be considered high risk and merit regular surveillance

    Green finance and sustainable development in Europe

    Get PDF
    This study provides a comprehensive analysis of whether financial development impacts environmental degradation, over time. It highlights how financial development, institutional frameworks, and foreign investment dictate the extent of green development. The sample includes 40 countries in Europe and data is collected on a large set of variables, for the years from 1990 to 2019. Financial development is measured through domestic credit to the private sector, bank credit to the private sector and foreign direct investment (FDI). Environmental degradation is measured through energy use, CO2 emissions, greenhouse emissions and natural resource depletion. The model controls for income levels, institutional quality, technology, education, population, and urbanization. Regression analysis is conducted to analyze the data. The results suggest that financial development has a negative relationship with four different measures of environmental degradation, while FDI and institutional quality appear to worsen the environmental measures. Recommendations for policy makers include development of green finance policies and strong institutions, to lower environmental degradation in the long run

    Relationship between fear, fall & balance in cummunity dwelling older adults

    Get PDF
    Background: In older population the risk of fall is always at high risk and there are many contributing factor which increase the prevalence of fall. The impaired balance leads to limited daily activities and confidence level. Purpose of the study: The main purpose of this study was to determine the relationship between fall, fear and balance in older population. Method & methodology: The descriptive cross sectional study design was used and a sample of 271 older adult were recruited through purpose sampling technique. The detail demographic was noted, history of fall and other related co-morbidities were mention in performa. The standardized test Activity based confidence scale (ABC) and Time up & go (TUG) were used for proper assessment. Results: The result shows that 72% sample were composed of females and 28% were male. Majority 71% belong to age bracket 65-74 years and 79% have no history of fall. Only 19% have high level of physical function on confidence scale, 36% and 45 % were in moderate and low level of physical functioning respectively. The ralationship shows that the older adults who have impaire mobility on TUG have 30% (82) and 11.43% (31) low and moderate level of physical functioning on ABC scale respectively. Conclusions: The findings indicate that majority of older adults have no fall history but still most of them have low level of confidence & physical functioning on ABC scale. The confidence balance is associated with the physical functioning in older adults and need to improve the balance training for proper functioning

    The Impact of Dispositional Optimism and Self-determination on Wellbeing of Job Seeker Young Adults

    Get PDF
    The present study aimed to find out that 1) dispositional optimism and self-determination are positively related to well-being in job seekers young adults, and 2) to find out the predicting role of dispositional optimism and self-determination in determining the well-being of job seekers. The study was based on a correlational research design. A purposive sample of 192 job seekers young adults aged 19 to 27 years (M =22, SD=1.25) was taken as a sample. The sample consisted of 91 men and 101 women from four different universities in Lahore. Urdu versions of the Life orientation test-revised (Scheier et al., 1985), Self-determination scale (Deci & Ryan, 2000), Mental health continuum short-form (Keyes & Ryff, 1998) and self-constructed demographic information sheet were used for assessment. The results showed that dispositional optimism, self-determination, and well-being are positively related to young job seekers. Further, dispositional optimism and self-determination were found as positive predictors of well-being in job-seeking young adults. Further, the results also indicated that men have higher social well-being as compared to women. The limitations and suggestions are also discussed

    Successful completion of pregnancy after mustard procedure for transposition of great arteries: A rare case from the developing world

    Get PDF
    Surgical repair of transposition of great arteries has undergone various evolutionary changes over the years. The initial of these treatment options was atrial septectomy followed by atrial switch and the current preferred treatment option is arterial switch operation worldwide. Due to various reasons, like lack of medical and surgical expertise atrial switch operation was commonly in practice in developing countries until few years back. Pregnancy in a patient with history of atrial switch operation poses a unique haemodynamic challenge. We report the case of a successful pregnancy in a 26 years old lady who had undergone Mustard repair surgery in the past in Pakistan

    Factors associated with failed induction of labour in a secondary care hospital

    Get PDF
    Objective: To assess the factors associated with failed induction of labour (IOL) in a secondary care hospital.Method: This is a retrospective cross sectional study on women admitted for labour induction in Aga Khan Hospital for women Karimabad from 1st Jan, 2009 to 31st Dec, 2009. Induction was considered successful if the patient delivered vaginally and failed if it ended up in Caesarean Section.Result: Eighteen percent of our pregnant population who underwent induction of labour failed to deliver vaginally. About 25% of 328 nulliparous women had failed induction. With a Bishop score of \u3c5 in 84.3%. In 28.2% with prolonged latent phase of more than 20 hours in Caesarean section had to be performed.Conclusion: Nulliparity, poor Bishop score and prolonged latent phase had strongest association with failed Induction of Labour. Macrosomia, gestation age, bad obstetric history and pre labour rupture of membranes were other significant risk factors for emergency caesarean sections in IOL

    Relationship between Narcissism and Selfie Posting Behavior; Mediating Role of Loneliness and Self-esteem among Adolescents

    Get PDF
    Narcissism is characterized by an abnormally high sense of self-importance that leads to different mental health issues. The current study was aimed at observing the mediating role of loneliness and self-esteem between narcissism and selfie-posting behavior among adolescents. To examine the psychometric properties of scales, a sample of 300 students was collected and further divided into two groups of male (n = 193) and female (n = 107) participants by using a convenient sampling strategy. The age range of participants was from 18 to 35 years old. Urdu-translated versions of the Narcissistic Personality Inventory by Raskin and Hall (1988), the Selfitis Scale by Amna Amjad (2017), the UCLA Loneliness Scale by Russell, Peplau, and Cutrona (1980), and the Rosenberg Self-Esteem Scale by Rosenberg (1965) were used to analyze the constructs of this study. The findings of the current study show a significant relationship between variables such as narcissism that is positively correlated with selfie-posting behavior, loneliness, and self-esteem. Regression analysis revealed that narcissism significantly predicts selfie-posting behavior. Mediation analysis shows the significant mediation of loneliness between narcissism and selfie-posting behavior. Mediation results are non-significant in the case of self-esteem. The implications of the current study suggest the need for interventions to deal with loneliness and alleviate the potentially detrimental effects of narcissism on the behaviors associated with selfie posting. These interventions may encourage healthy online behaviors among adolescents by encouraging social bonds and lowering loneliness. Further limitations of the study are discussed, and suggestions for future research are provided
    corecore