Catalogue Search | MBRL
Are you sure you want to remove the book from the shelf?
{{itemTitle}}
601
result(s) for
"Gupta, Poonam"
Sort by:
Study of feedback retrial queueing system with working vacation, setup time, and perfect repair
This manuscript analyses a retrial queueing system with working vacation, interruption, feedback, and setup time with the perfect repair. In the proposed model, the server takes vacation whenever the system gets empty but it still serves the customers at a relatively lower speed. The concept of power saving is included in the model. To save the power the server is turned off immediately on being empty at vacation completion instant. The customer who arrives when the system is turned off activates the server and he has to wait for his turn till the server is turned on. The unreliable server may sometimes fail to activate during setup. It is then sent for repair and repaired server immediately starts serving the waiting customers. Using probability generating function, explicit expressions for system size and different states of server for the model are obtained and results are analyzed graphically using MATLAB software.
Journal Article
Foreign Banks in Poor Countries: Theory and Evidence
We study how foreign bank penetration affects financial sector development in poor countries. A theoretical model shows that when domestic banks are better than foreign banks at monitoring soft information customers, foreign bank entry may hurt these customers and worsen welfare. The model also predicts that credit to the private sector should be lower in countries with more foreign bank penetration, and that foreign banks should have a less risky loan portfolio. In the empirical section, we test these predictions for a sample of lower income countries and find support for the theoretical model.
Journal Article
12 COVID realities: pivoting to virtual QI training in India
Abstract DescriptionA program to scale-up improvements in maternal and newborn health in India confronted the challenges of providing quality improvement training to leaders and front-line clinicians and staff in 38 district hospitals in the state of Bihar, India. Virtual training programs, while not entirely new to the participants, was something that had not been done before on this scale. Results showed exciting improvements in quality improvement understanding and skills, as well as confidence to use and apply new-found knowledge.
Journal Article
Associations between parents' exposure to a multisectoral programme and infant and young child feeding practices in Nepal
In Nepal, an at‐scale, multisectoral programme—Suaahara (2011–2023)—aims to improve nutrition behaviours. Suaahara II (2016–2023) transitioned from a mother/child dyad focus to explicitly targeting all family members. Evidence is scant, however, regarding how exposure by men to social and behaviour change interventions relates to nutrition outcomes. This study uses a 2019 cross‐sectional monitoring dataset to test associations between maternal and male household head exposure to Suaahara II interventions (interacting with a frontline worker, participating in a community event or listening to the Bhanchhin Aama radio programme) and adoption of three infant and young child feeding practices: minimum dietary diversity, minimum acceptable diet and sick child feeding, in households with a child under 2 years (n = 1827). Maternal exposure to Suaahara II had a positive association with minimum dietary diversity (OR: 1.71, 95% CI [1.27, 2.28], P < 0.001), minimum acceptable diet (OR: 1.60, 95% CI [1.19, 2.14], P = 0.002) and increased feeding to a sick child (OR: 2.11, 95% CI [1.41, 3.17], P < 0.001). Male household head exposure was only associated with increased feeding to a sick child (OR: 2.21, 95% CI [1.27, 3.84], P = 0.005). Among households with an exposed mother, having an exposed male household head nearly tripled the odds of appropriate sick child feeding (OR: 2.90, 95% CI [1.57, 5.34], P = 0.001) but was not significantly associated with the other two outcomes. These findings suggest that the relationships between exposure to nutrition programmes and outcomes are complex and further research is needed to understand variation by family member, behavioural outcome and context.
Journal Article
Analysis of classical retrial queue with differentiated vacation and state dependent arrival rate
In present paper we have introduced the concept of differentiated vacations in a retrial queueing model with state dependent arrival rates of customers. The arrival rate of customers is different in various states of the server. The vacation types are differentiated by means of their durations as well as the previous state of the server. In type I vacation, server goes just after providing service to at least one customer whereas in type II, it comes after remaining free for some time. In steady state, we have obtained the system size probabilities and other system performance measures. Finally, sensitivity and cost analysis of the proposed model is also performed. The probability generating function technique, parabolic method and MATLAB is used for the purpose.
Journal Article
Bundle approach used to achieve zero central line-associated bloodstream infections in an adult coronary intensive care unit
BackgroundCentral venous catheterisation is commonly used in critical patients in intensive care units (ICU). It may cause complications and attribute to increase mortality and morbidity. At coronary ICU (CICU) of cardiac hospital, central line-associated bloodstream infection (CLABSI) rate was 2.82/1000 central line days in 2015 and 3.11/1000 central line days in 2016. Working in collaboration with Institute for Healthcare Improvement (IHI), we implemented evidence-based practices in the form of bundles in with the aim of eliminating CLABSI in CICU.MethodsIn collaboration with IHI, we worked on this initiative as multidisciplinary team and tested several changes. CLABSI prevention bundles were tested and implemented, single kit for line insertion, simulation-based training for line insertions, standardised and real-time bundle monitoring by direct observations are key interventions tested. We used model for improvement and changes were tested using small Plan-Do-Study-Act cycles. Surveillance methods and CLABSI definition used according to National Healthcare Safety Network.ResultsThe CLABSI rate per 1000 patient-days dropped from 3.1 per 1000 device-days to 0.4 per 1000 device-days. We achieved 757 days free of CLABSI in the unit till December 2018 when a single case happened. After that we achieved 602 free days till July 2020 and still counting.ConclusionsImplementation of evidence-based CLABSI prevention bundle and process monitoring by direct observation led to significant and subsequently sustained improvement in reducing CLABSI rate in adult CICU.
Journal Article
Improved DTC of Induction Motor with Fuzzy Controller
DTC, also known as Direct Torque Control, is a technique employed in variable frequency drives for regulating the torque and speed of three-phase AC electric motors. This method entails determining an approximation of the motor’s magnetic flux and torque by analyzing the voltage and current readings of the motor. In order to reduce flux ripples and ensure smooth speed operation, we have suggested the use of two fuzzy logic controllers based on DTC for induction motors. The proposed method offers a faster response compared to conventional DTC for induction motors. The MATLAB simulink software was used to illustrate the comprehensive results.
Journal Article
Comparative study of oxidative stress in cancer patients occupationally exposed to the mixture of pesticides
Cancer is a leading cause of death worldwide, accounting for nearly 10 million deaths in 2020. Reviews indicated a positive relationship between exposure to pesticides and the development of cancers. In the present study, we have estimated the level of oxidative stress markers in serum samples of pesticide exposure and unexposed cancer patients as compared to normal control. We have found a significant decrease in peroxygenase (PON) and arylesterase (ARE) activity and substantial increases in homocysteine levels in both cancer groups. The level of heme biosynthesis rate-limiting enzymes delta-aminolevulinic acid dehydratase (δ-ALA-D) also significantly decreased compared to control. The statistical comparison between the cancer groups does not show significant changes. We concluded the involvement of oxidative stress in carcinogenesis in both cancer group patients. However, more study is needed to put homocysteine as a novel marker for a variety of diseases on a single platform.
Journal Article
Sleep Disturbance and Chronic Urticaria: A Narrative Review of Its Relationship, Treatment and Evolving Literature
Background and Aims Chronic Spontaneous Urticaria is characterized by the sudden onset of itchy wheals and angioedema and is primarily driven by mast cells. It can have a significant impact on the Quality of Life (QoL) of an individual. While the role of mast cells in urticaria is extensively described, the link between sleep disorders and inflammatory skin conditions such as urticaria is still being explored. The review aims to provide an overview of the current knowledge about chronic urticaria, elaborating on the impact of poor sleep quality on QoL of patients with urticaria, with a focus on their emotional well‐being. Methods The review explores potential mechanisms linking chronic urticaria and sleep disturbances, such as persistent itching and discomfort, the release of inflammatory mediators, systemic inflammation, psychological factors, and effects of medication. Results The review finds that sleep disturbances have a significant impact on chronic urticaria. It identifies several potential mechanisms linking the two conditions, including persistent symptoms, inflammatory processes, psychological factors, and medication effects. Treatment approaches include a combination of pharmacological and nonpharmacological interventions. Conclusion The article emphasizes the significance of recognizing the impact of sleep disturbances on chronic urticaria. It lays the groundwork for future research to expand our understanding of this association, ultimately leading to improved management strategies and improved QoL for affected individuals.
Journal Article