OALib Journal期刊

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匹配条件: “Nowsheen Khan” ,找到相关结果约7423条。
A study of craniofacial anthropometrics in Hyderabad (Deccan)—and a review of literature
Nowsheen Khan,Vasanta Leela,Gopalakrishna Annavarapu
Journal of Medical and Allied Sciences , 2012,
Abstract: The development of an anthropometric craniofacial data base is a necessary multidisciplinary initiative, and on anthropometry of the South-Indian face is inadequate. The purpose of this investigation is to obtain average parameters that define the soft tissue facial profile of the investigated population in order to provide an important reference for community, security, social and medical applications. In this pilot study, the faces of 40 young adults were studied with standardized photography and measurements, and the data collated to determine averages for the Deccan region ethnic sub-set. This data-set has been compared and contrasted with others in literature.
Wireless Lan Security: An In-Depth Study of the Threats and Vulnerabilities
Rony Hasinur Rahman,Nusrat Nowsheen,Mahbubul Azam Khan,Asif Hossain Khan
Asian Journal of Information Technology , 2012,
Abstract: As the wireless communications is coming to the offices and the homes, there are some new security issues to take care. Today we have continuously growing markets for the wireless LANs, but there is a big black hole in the security of this kind of networks. This study explores and analyzes the threats and vulnerabilities of wireless LANs. The research is intended to help business owners and network administrators understand the key elements that a secure wireless network requires so they can avoid the expense and risk associated with an inadequate deployment. The study also provides background information, suggestions and guidelines for assessing the various types of wireless security solutions available using today’s technology.
Locating Mobile Phones on a City Map Using SMS Technology
R. H. Rahman,N. Nowsheen,M. A. Khan,A.H. Khan
Asian Journal of Information Technology , 2012,
Abstract: Finding the location of a mobile phone is one of the crucial challenges in modern telecommunication system. This study proposes a solution of locating a mobile phone on a city map using SMS (Short Message Service). This study intends to help mobile phone users to find out his/her location on a geographical map. The proposed method is GPS-free and it requires no additional technology to be added to existing mobile phones. It uses well-established algorithms to locate a mobile phone on a geographical map and then sends the position-on-a-map to the user mobile by an SMS.
An New Symmetric Key Distribution Protocol Using Centralized Approach
R.H. Rahman,N. Nowsheen,M.A. Khan,C.F. Ahmed
Asian Journal of Information Technology , 2012,
Abstract: In a distributed computer system and similar networks of computers it is necessary to have mechanisms by which various pairs of principals satisfy themselves mutually about each other`s identity-they should become sure that they really are talking to each other, rather than to an imposter impersonating the other agent. This is the role of an authentication protocol. Various authentication protocols based on public key and symmetric key cryptography have been developed for recent twenty or thirty years. Most of the symmetric key authentication schemes deployed today are based on principles introduced by Needham and Schroeder. In this study, we have proposed a symmetric key authentication scheme basically based on the Needham and Schroeder five-message protocol. The aim of our proposed method is to improve the existing Needham and Schroeder five message protocol in two aspects. One is to improve the time needed to distribute key between pair of nodes, i.e. making the key distribution process faster. And the second aspect is to develop on the weak security of the existing system.
Path Selection Based Route Finding Protocol in Mobile Ad Hoc Network
Nusrat Nowsheen,Mosaddek Hossain Kamal
Asian Journal of Information Technology , 2012,
Abstract: Mobile Ad Hoc Network (MANET) is an autonomous system of functionally equivalent mobile nodes, which must be able to communicate while moving, without any kind of wired infrastructure. In such an environment, it may be necessary for one mobile host to enlist the aid of other hosts in forwarding a packet to its destination, due to the limited range of each mobile host s wireless transmissions. To this end, mobile nodes must cooperate to provide the routing service. Routing in mobile environment is challenging due to the constraints existing on the resources (transmission bandwidth CPU time and battery power) and the required ability of the protocol to effectively track topological changes. Limited bandwidth and a high degree of mobility require that routing protocols for ad hoc networks be robust, simple and energy conserving. Efficient, dynamic routing is also one of the key challenges in this network. In recent past, this problem has been addressed by several research efforts, resulting in a large body of literature. Each node participating in the network acts both as host and a router and must therefore be willing to forward packets for other nodes. For this purpose, a number of routing protocols like Dynamic Source Routing (DSR) Protocol, Ad Hoc On-Demand Distance Vector (AODV) Routing, Destination Sequenced Distance Vector (DSDV) and Temporally Ordered Routing Algorithm (TORA) have been implemented. This study presents a new on demand protocol for routing in ad hoc networks that selects a route of smallest hop count and consisting of nodes in a non-existing path. Our protocol adapts quickly to routing changes when host movement is frequent, yet requires little or no overhead during periods in which hosts move less frequently. The path selection method used in this protocol always prefers to a route with more non-forwarding nodes and provides the solution to cope with network mobility by selecting route efficiently. Our route finding protocol provides loop free routes even while able to repair broken links. Because the protocol does not require global periodic routing advertisements the demand on the overall bandwidth available to the mobile nodes is substantially less than in those protocols that require such advertisements. Nevertheless, we can still maintain most of the advantages of basic Distance vector routing mechanisms. Our algorithm scales to large populations of mobile nodes wishing to form ad-hoc networks. We also point out future research issues in the context of individual routing approaches as well as from the overall system perspective.
Synthetic Lethal Interactions between EGFR and PARP Inhibition in Human Triple Negative Breast Cancer Cells
Somaira Nowsheen, Tiffiny Cooper, Jennifer A. Stanley, Eddy S. Yang
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0046614
Abstract: Few therapeutic options exist for the highly aggressive triple negative breast cancers (TNBCs). In this study, we report that a contextual synthetic lethality can be achieved both in vitro and in vivo with combined EGFR and PARP inhibition with lapatinib and ABT-888, respectively. The mechanism involves a transient DNA double strand break repair deficit induced by lapatinib and subsequent activation of the intrinsic pathway of apoptosis. Further dissection of the mechanism reveals that EGFR and BRCA1 can be found in the same protein complex, which is reduced by lapatinib. Interestingly, lapatinib also increases cytosolic BRCA1 and EGFR, away from their nuclear DNA repair substrates. Taken together, these results reveal a novel regulation of homologous recombination repair involving EGFR and BRCA1 interaction and alteration of subcellular localization. Additionally, a contextual synthetic lethality may exist between combined EGFR and PARP inhibitors.
Supported TritonX-100 Polyaniline Nano-Porous Electrically Active Film onto Indium-Tin-Oxide Probe for Sensors Application  [PDF]
Raju Khan
Advances in Chemical Engineering and Science (ACES) , 2011, DOI: 10.4236/aces.2011.13021
Abstract: Supported tritonX100 polyaniline nano-porous electrically active film has been fabricated successfully onto indium-tin-oxide conducting probe using electrochemical polymerization process. The doping of TX-100 in the polymeric network of PANI was suggested using cyclic voltammeter, UV-vis spectroscopy, and Fourier Transform Infrared spectroscopy. The change in the surface morphology of PANI thin film due to incorporation of tritonX-100 was investigated using Atomic Forced Microscopy and porosity has been confirmed scanning electron microscopy, respectively. The surface morphology, uniformly disperse hexagonal close packing of TX-100 in PANI matrices due to the incorporation of TX-100 in polymeric network of PANI was confirmed by Atomic Force Microscopy. The electrical conductivity of PANI-TX-100 increases from 1.06 x 10-2 S/cm-1 to 4.95 x 10-2 S/cm-1 as the amount of TX-100 increases during the polymerization. The change in the morphology and electrical conductivity of PANI due to incorporation of TX-100 prove as a promising material for the sensing application.
A Novel, Safe Way of Removing Non-Deflatable Bladder Catheter  [PDF]
Ziauddin Khan, Umair Tahir Khan, Imran Khan, Tahir Naeem Khan
Open Journal of Urology (OJU) , 2012, DOI: 10.4236/oju.2012.24044
Abstract: Non-deflated balloon of a transurethral inserted bladder catheter is a problem that could be difficult to manage, especially in males. A variety of methods have been described to puncture the balloon and remove the catheter, though these can be associated with complications. We illustrate a simple and a safe method to overcome this problem using a flexible cystoscope under local anaesthesia.
Book Review on Pakistan and the New Nuclear Taboo: Regional Deterrence and the International Arms Control Regime  [PDF]
Zafar Khan
Advances in Historical Studies (AHS) , 2013, DOI: 10.4236/ahs.2013.21001
Abstract: Pakistan has always been the focus of international community, strategists, analysts, and academic scholars on various issues more especially on the nuclear issue since Pakistan has embarked its journey from covert to overt nuclearisation of South Asia. Any work in relation to Pakistan’s nuclear weapons program ranging from its nuclear policy to its nuclear security has gained a great significance in the realm of politics and international studies. Rizwana Abbasi’s maiden volume entitled, Pakistan and the New Nuclear Taboo: Regional Deterrence and the International Arms Control Regime is a welcome contribution that would certainly be embraced by the Pakistani security planners and strategic community in general and the wider international audience in particular. The key aim of this book is that norms, values, and regime still matter despite the presence and influence of hard core realism and neo-realism.
Comparison between the Personality Dimensions of Delinquents and Non-Delinquents of Khyber Pukhtunkhwa (KPK), Pakistan  [PDF]
Sehrish Khan
Open Journal of Social Sciences (JSS) , 2014, DOI: 10.4236/jss.2014.25027
Abstract: This study was an attempt to find out the comparison between the personality dimensions of delinquents and non delinquents of Khyber Pukhtonkhwa (KPK). Eysenck personality Questionnaire (junior) (Urdu Version 2007) was administered on the sample of 400 (Delinquents = 200, non-delinquents = 200). Delinquents were the inmates in different jails of KPK while non-delinquents
were the students of different colleges of KPK. It was hypothesized that the delinquents will score higher on all the four dimensions of Eysenck personality scale as compared to non delinquents. Findings of the study confirmed the said hypothesis. It was proved that delinquents have higher scores of psychoticism, neuroticism, extraversion, and lie as compared to non-delinquents. The findings of this study can help the parents, teachers, and the law departments to focus on the construction of healthy personality so that the rate of crimes among adolescents can be minimized.

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