42 research outputs found
DIFS: Distributed Interest Forwarder Selection in Vehicular Named Data Networks
No full textIn this paper, we propose a distributed interest forwarder selection (DIFS) scheme that mitigates the interest broadcast storm in vehicular named data networks. In DIFS, a vehicle sends an interest packet piggybacking its location, distance to the neighbors, and speed. In this case, the immediate neighbors do not have the requested content and rank themselves to be an eligible interest forwarder by using multiple attributes. Additionally, every intermediate vehicle uses a digital map to be selected as forwarders in both (forward and backward) directions of the consumer. Simulations show that DIFS satisfies more interest packets with less delay as compared with the recent forwarding solutions
Effectiveness of using role-play versus video-based learning for interprofessional communication & teamwork skills learning of undergraduate medical & nursing students.
No full textBackground: Communication and teamwork skills are critical for patient care and safety in healthcare settings. This study examines the effectiveness of using Video-Based Learning (VBL) and Role Play (RP) in enhancing essential communication and teamwork skills among undergraduate medical and nursing students.Methods: A mixed-method approach encompassed a pre -post intervention design and focused group discussions. Sixty-four participants were randomly divided into two groups(N=32), each receiving training through either VBL or RP. The study utilized the Communication and Teamwork Skills (CATS) assessment instrument to evaluate improvements in coordination, situational awareness, cooperation, and communication skills before and after the interventions.Results: The mean scores for the RP group were 12.40±2.62 in coordination (vs VBL=7.9±2.50), 5.65±1.51 in situational awareness (vs VBL=3.68±1.78), 13.46±3.58 in cooperation (vs VBL=8.21±2.57), and 13.15±6.33 in communication (vs VBL=11.28±3.72). All showing significant improvements (p \u3c 0.001), post-intervention, except for communication (p = 0.155). Qualitatively, both methods were perceived as engaging and interactive.Conclusions: The study concludes that while VBL and RP are effective educational methods, RP significantly improves interprofessional team performance skills. These findings suggest that RP\u27s practical, interactive nature makes it a more effective tool for teaching interprofessional communication and teamwork in medical and nursing education. Integrating role-play activities into medical and nursing education curriculum could enhance communication and teamwork skills among students. Evaluating the longitudinal impact of this integration on patient care could be an area for future research
BIRD: Bio-Inspired Distributed Interest Forwarding in Vehicular Named-Data Networks
No full textIn this work we tackle the problem of congestion and Interest broadcast storm problem in vehicular named data networks (VNDN) and propose a bio-inspired approach which makes the Interest forwarding self-adaptive and autonomous. The properties like scalability, self-adaptiveness, and simplicity are inherently available to the biological species. These properties are desirable in the VNDN environment, who face the daunting issue of Interest flooding and congestion. The proposed Bio-Inspired Distributed (BIRD) Interest forwarding scheme allows the on-road vehicles to make intelligent Interest forwarding decisions based on the simple rules followed birds in nature. The Interest packets are guided through multiple paths in a flock like manner towards the provider. Simulation results show that at the cost of additional packets for multiple paths we achieve an average of 20% higher Content satisfaction ratio from both RUFS and NAIF. Additionally, BIRD incurs 10% less delay as compared to the multi-path NIAF scheme in urban scenarios with varying network density
RTK GPS Performance Assessment for Long Baseline Deformation Monitoring
Get PDFAn offshore platform or correctly is a large structure with facilities to drill wells, to extract and process oil and natural gas, and to temporarily store product until it can be brought to shore for refining and marketing. For a normal GPS, after we obtained the coordinates of certain point, we have to process them and this will take time. For RTK GPS, it is real time process. It means that the data obtained can be processed on time and this can reduce time and occupation load. When a platform is hit by external forces, it will move a little bit from its original position, maybe just about 10cm. How can we measure the movement of the platform at the middle of the sea? This project work will be using the knowledge that author had learnt during the period of study. It is a method to test for the practicality of the knowledge that had been learned. In conducting this project, the author has to study about RTK GPS performance, understand the concept and the functions of RTK GPS. Next, some tests are going to be conducted, which is distance, accuracy, precision, and performance of RTK GPS single-based test
Asking Neighbors a Favor: Cooperative Video Retrieval Using Cellular Networks in VANETs
No full textIn the future networks, driven by the constant evolution of today\u27s applications, video streaming over vehicular ad-hoc networks (VANETs) will play an increasingly significant role in our daily life. Many users already consider the video streaming service, among other services, as a necessity. However, due to the limited bandwidth of a connection through a cellular network, a vehicle may not be able to obtain a good quality of service (QoS). In order to receive a good quality video, a vehicle in VANET may ask its neighbors a favor in helping to download the video. In this paper, we therefore propose a COoperative video REtrieval scheme (CoRe) that allows the vehicles to download a good quality video from the Internet in collaboration with the neighbors. The neighbors are selected by exploiting their multiple on-road characteristics such as euclidean distance, connection time, relative velocity, and the available cellular bandwidth. These neighboring vehicles download the video data through their cellular link and forward it to the requesting vehicle through the Dedicated Short-Range Communication (DSRC) protocol. Simulation results show that our proposed CoRe scheme outperforms the existing solution such as the K-hop scheme in terms of higher video quality and better video-flow handling
Incompatibility of Laws and Natural Resources: A Case Study of Land Revenue Laws and Their Implications in Federal Areas of Pakistan
Get PDF
Managing the Margins: Intersections of the State and the Khawaja Sira in Lahore, Pakistan
Get PDFabstract: Social equity research in public administration (PA) investigates different ways in which the practices of government intersect with the lives of socially marginalized individuals. However, due to limited direct engagement with marginalized groups; a predominant focus on formal state policies and institutions; and a lack of context-specific analyses of marginalization, there remain significant limitations in the existing PA research on social equity.
To address these theoretical gaps, this dissertation focuses on the Khawaja Sira of Pakistan – a marginalized group culturally defined as neither men nor women – to empirically investigate the multiple intersections between government and life on margins of the state. Specifically, this dissertation explores research questions related to legal and self-identity of the Khawaja Sira, impact of their changed legal status, their informal institutional experiences, and their interaction with front-line government workers through an interpretive research methodology.
The research design consisted of a ten-month long person-centered ethnography in Lahore, Pakistan during which in-depth person-centered interviews were conducted with 50 Khawaja Sira. I also conducted semi-structured interviews with 19 frontline workers from National Database and Registration Authority (NADRA), social welfare department, and a local NGO and a group interview with 12 frontline workers of police. I coded the data collected from the fieldwork using qualitative thematic content analysis in MAXQDA. I then analyzed the main themes from the data using multiple theoretical perspectives to develop my findings.
My analysis shows that the legal identity of the Khawaja Sira, as conceived by the Supreme Court of Pakistan, has limited relevance and benefits for the Khawaja Sira most of whom instead choose to register as men. The analysis of administrator-citizen interactions reveals that the Khawaja Sira are exposed to hyper-surveillance, moral policing and higher administrative burden during these interactions. These interactions are also strongly mediated by formal public policy, social discourses about gender identity and informal institutions. I discuss the implications of my analysis that can contribute to a more inclusive society for the Khawaja Sira. In doing so, my research makes important contributions to research on administrative burden, everyday citizenship, and social equity in public administration.Dissertation/ThesisDoctoral Dissertation Public Administration 201
RIED-MAC: Receiver-Initiated MAC Based on Energy-Efficient Duty Cycling for UWSNs
No full textThe unique channel characteristics of Underwater Wireless Sensor Network (UWSN) pose various challenges which include but are not limited to energy constraints and harsh dynamic environment. The dynamic environment results into packet collisions and packet losses at MAC layer that lead to waste of vital energy resources. In order to counter these challenges, we propose a Receiver-Initiated MAC based on Energy-efficient Duty cycling called RIED-MAC. In RIED-MAC, while the receiver node is asleep, sender nodes wake up and based on the level of residual energy, take on the role of Responsible Wakeup Node (RWN). RWN builds a Schedule Table (ST) of senders next wake-up times. When receiver node wakes-up it collects senders data packets based on ST. Simulation results show that the proposed RIED-MAC outperforms the ES-MAC scheme on various network parameters like energy consumption rate
