Lahore University of Management Sciences

About: Lahore University of Management Sciences is a education organization based out in Lahore, Pakistan. It is known for research contribution in the topics: Fixed point & Metric space. The organization has 1524 authors who have published 3015 publications receiving 42665 citations. The organization is also known as: LUMS.

CSN: a network protocol for serving dynamic queries in large-scale wireless sensor networks

Abstract: A fundamental problem that confronts future applications of sensor networks is how to locate efficiently the sensor node that stores a particular data item. Distributed hash table (DHT) based Internet peer-to-peer (P2P) protocols provide near-optimum data lookup times for queries made on networks of distributed nodes. A generic mapping of these protocols to sensor networks is, however, perceived as difficult (Ratnasamy, S. et al., Mobile Networks and Applications, - MONET 2003). We present a novel DHT based network protocol for sensor networks - chord for sensor networks (CSN) - for which bounded times for data lookup, in the order of O(logN) messages, can be achieved in an energy efficient manner. CSN makes the system lifetime of the sensor network proportional to its effective use. Furthermore, CSN scales well to large-scale sensor networks when the information about other nodes logarithmically increases with an increase in the number of sensor nodes.

Transboundary cooperation a potential route to sustainable development in the Indus basin

Abstract: With a rapidly growing population of 250 million, the Indus river basin in South Asia is one of the most intensively cultivated regions on Earth, highly water stressed and lacking energy security. Yet, most studies advising sustainable development policy have lacked multi-sectoral and cross-country perspectives. Here we show how the countries in the Indus basin could lower costs for development and reduce soil pollution and water stress by cooperating on water resources and electricity and food production. According to this analysis, Indus basin countries need to increase investments to US$10 billion per yr to mitigate water scarcity issues and ensure improved access to resources by 2050. These costs could shrink to US$2 billion per yr, with economic gains for all, if countries pursued more collaborative policies. Downstream regions would benefit most, with reduced food and energy costs and improved water access, while upstream regions would benefit from new energy investments. Using integrated water–energy–land analysis, this study quantifies the potential benefits of novel avenues to sustainable development arising from greater international cooperation. The Indus river basin in South Asia is water stressed, energy insecure and intensively farmed, and research on this region often lacks a systemic approach to the issues. This study shows how the path to development in the region could be made less costly and more environmentally friendly by fostering transboundary cooperation.

Green tea leaves mediated ZnO nanoparticles and its antimicrobial activity

Abstract: Plant-mediated synthesis of ZnO Nanoparticles (NPs) have multiple advantages over conventional synthetic methods like easy, inexpensive, eco-friendly, nontoxic by-products and no critical condition...

Viral entertainment as a vehicle for disseminating speech-based services to low-literate users

Abstract: Entertainment has recently been shown to be a powerful motivator for mastering new technologies. We therefore set out to use viral entertainment to introduce telephone-based, speech-based services to low-literate people in developing countries. We describe Polly, a simple voice manipulation and forwarding system that went viral in Pakistan last year. Seeded once by 32 low-skilled office workers in a Pakistani university, in 3 weeks Polly amassed 2,032 users and 10,629 interactions. From analyzing the traffic and its content, it is evident that Polly has been used extensively for entertainment and social contact, but it has also been put to an unintended use as a voicemail and group messaging facility. This demonstrated the potential for speech based services, and the pent-up demand for entertainment, among our target population. Also of note, Polly's viral spread crossed gender and age boundaries and even established itself in a female population. However, it appears to have not crossed socioeconomic boundaries.