Sohaib Ahmad

Learn More
Mobile devices are becoming increasingly dominant in the developing world. However, there is little insight into the characteristics of devices being used in such regions. Using a dataset of ~0.5 million subscribers from one of the largest cellular operators in Pakistan, we analyze the characteristics of cell phones based on different features (e.g., CPU,(More)
INTRODUCTION Acute undifferentiated febrile illness (AUFI) is a common clinical entity in most of the hospitals. The fever can be potentially fatal if the aetiology is not recognized and appropriately treated early. AIM To describe the aetiology of fever among patients in a tertiary care hospital in Northern India. MATERIALS AND METHODS A one-year(More)
Recent progress in nanotechnology and optical imaging offers promising features to develop effective drugs to cure chronic diseases, such as cancer and malaria. However, qualitative characterization of biological organisms (such as molecules) is the foremost requirement to identify key drug targets. One of the most widely used approaches in this domain is(More)
BACKGROUND Atherosclerosis is emerging as an important complication of rheumatoid arthritis (RA), with coronary artery disease being projected as the major cause of mortality in these patients.This study was undertaken to evaluate the presence of subclinical atherosclerosis and to identify the risk factors of atherosclerosis in patients with RA. PATIENTS(More)
Scrub typhus is a commonly encountered rickettsial disease of the Indian subcontinent. Humans are infected accidentally and the case fatality can be significantly high if the disease is not identified in time. We report nine cases of scrub typhus from the Garhwal region of the newly created north Indian state of Uttarakhand, a region not previously known to(More)
OBJECTIVE To study the clinical profile of and complications in children with scrub typhus. DESIGN Prospective observational study. SETTING Tertiary care hospital. METHODS Children up to 12 years of age who had a fever for more than five days without an identifiable infection were included. All children who were suspected of having rickettsial(More)
In 2:1 breathing exhalation is twice of inhalation. The study was performed to study the influence of 2:1 yogic breathing technique on patients of essential hypertension. 30 patients of essential hypertension between ages of 20-50 years were selected. After a rest of 15-20 minutes in a comfortable sitting posture their baseline physiological parameters(More)
Free Basics is a Facebook initiative to provide zero-rated web services in developing countries. The program has grown rapidly to 60+ countries in the past two years. But it has also seen strong opposition from Internet activists and has been banned in some countries like India. Facebook highlights the societal benefits of providing low-income populations(More)
ACM Reference format: Siddharth Singh, Vedant Nanda, Rijurekha Sen, Sohaib Ahmad, Satadal Sengupta, Amreesh Phokeer, Zaid Ahmed Farooq, Taslim Arefin Khan, Ponnurangam Kumaraguru, Ihsan Ayyub Qazi, David Choffnes, and Krishna P. Gummadi. 2017. An Empirical Analysis of Facebook’s Free Basics Program. In Proceedings of ACM Sigmetrics conference,(More)
There are 106 bones in hands and feet but their lesions are not commonly reported. This was a retrospective study of all osteolytic lesions involving bones of the hands or feet presenting to the only tertiary referral centre of the north Indian state of Uttarakhand during the 7-year period from January 2006 to December 2012. A compilation of the various(More)