24 research outputs found
Performance evaluation of AODV and OLSR under mobility:
No full textWireless mobile ad hoc network is a infrastructureless network where each network node not only acts as a host but also acts as a router. Since the nodes are mobile,the environment is highly dynamic. For these networks to function properly a routing protocol is required that can respond to the rapid changes in the topology. Manyrouting protocols have been developed for accomplishing this task. The objective of this thesis is to study the impact of mobility on the performance of two mobile routing protocols, AODV, which is reactive routing protocol and OLSR, which is proactive routing protocol. Since not many MANETs have been deployed, most of the studies are simulation based. But for this thesis, experiments were conducted on national Open Access Research Testbed (ORBIT) for Next Generation Wireless Networks. We developed a basic framework to analyze the performance of routing protocols. We firstly evaluated the performance in a static environment where nodes are arranged in static linear topology and concluded that OLSR outperformed AODV. To study the mobility, we used Reference Point Group Mobility model that generates real life scenarios. It isclear that there is considerable cost associated with mobility. Both the protocols show decrease in throughput, higher standard deviation, more dead links and higher overhead when compared to their respective performance in static environment. However, the relative performance of AODV and OLSR depends on the mobility scenario. AODV performed better than OLSR for discrete scenario when time snapshots were taken at a lower frequency i.e. every 30 seconds. On the other hand, OLSR performed better in pseudo-continuous scenario when time snapshots were taken at higher frequency i.e. every 5 seconds.M.S.Includes bibliographical references (p. 41-42)by Tanuja Kuma
Polymorphisms in tobacco metabolism and DNA repair genes modulate oral precancer and cancer risk
No full textInfluence of genetic polymorphisms on frequency of micronucleated buccal epithelial cells in leukoplakia patients
No full textIdentification of full-length genes involved in the biosynthesis of β-caryophyllene and Lupeol from the leaf transcriptome of Ayapana triplinervis
No full textβ-Caryophyllene possesses potential anticancer properties against various cancers, including breast, colon, and lung cancer. Therefore, the essential oil of Ayapana triplinervis, which is rich in β-caryophyllene, can be a potential herbal remedy for treating cancer. However, molecular and genomic studies on A. triplinervis are still sparse. In this study, we obtained 14.7 Gb of RNA-Seq data from A. triplinervis leaf RNA and assembled 1,37,554 transcripts with an N50 value of 1,437 bp. We annotated 72,436 (52.7%) transcripts and mapped 10,640 transcripts to 156 biochemical pathways. Among them, 218 were related to terpenoid backbone biosynthesis, while 27 were linked to sesquiterpenoid and triterpenoid pathways. Ninety-four transcripts were annotated in the β-caryophyllene and lupeol pathways. From these transcripts, for the first time, we identified 25 full-length genes encoding all the 17 enzymes involved in β-caryophyllene biosynthesis and an additional five genes involved in lupeol biosynthesis. These genes will be useful for the metabolic engineering of β-caryophyllene and lupeol biosynthesis, not just in A. triplinervis but also in other species.
Keywords: β-caryophyllene, Eupatorium ayapana, Eupatorium triplinervis, lupeol, transcriptomeThe presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
Identifying advanced generation options for brown coal based power generation systems
No full textThis thesis was scanned from the print manuscript for digital preservation and is copyright the author.
Researchers can access this thesis by asking their local university, institution or public library to
make a request on their behalf. Monash staff and postgraduate students can use the link in the References field
Structure and motion estimation and recognition for curved three-dimensional objects
No full textThe main focus of research in computer vision in the past has been on polyhedral objects that give rise to viewpoint-independent edges in the image. This thesis focuses on smooth curved objects that give rise to viewpoint-dependent edges. The research presented primarily focuses on the problems of structure and motion estimation and object recognition.In the first part of the thesis, the structure and motion of a smooth object are estimated from its silhouettes observed by a trinocular stereo rig over time. First, a model is constructed for the local structure along the silhouette for each frame in the temporal sequence. The local models are then integrated into a global surface description by estimating the motion between successive frames. The algorithm tracks certain surface features (parabolic points) and image features (silhouette inflections and frontier points) that are used to bootstrap the motion estimation process. Points on the entire silhouette, along with the reconstructed local structures, are then used to refine the initial motion estimate. The proposed approach is implemented and results obtained on real images are presented.The second part of the thesis presents a new algorithm for recognition of curved 3D objects from 2D images. The algorithm is based on a representation composed of a discrete set of HOT curves at which the surface admits High Order Tangents. A method is presented to automatically construct two of the HOT curves (the parabolic and limiting bitangent curves) using the results of the above structure and motion estimation algorithm. There is a natural correspondence between these two HOT curves and certain silhouette features: the inflections and the bitangents. The recognition approach uses these silhouette features to compute a set of scale-independent image observables that serve as indices in a database of models. This database is used for pose estimation and model identification. Hypotheses formed through indexing are verified through pose estimation. The results obtained on real images are presented.Made available in DSpace on 2011-05-07T13:09:59Z (GMT). No. of bitstreams: 2
license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5)
9624376.pdf: 5678180 bytes, checksum: 9bd69dd682b8d75a703216bed0918637 (MD5)
Previous issue date: 1995Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding ([email protected]) on 2011-05-07T14:51:07Z
Item is restricted indefinitely.Restriction data tranferred 2014-07-01T11:23:25-05:00
Original Data
Group with Access UIUC Users [automated]
Release Date: none
Reason: ETDs are only available to UIUC Users without author permissionETDs are only available to UIUC Users without author permissionU of I Onl
A rare truncating BRCA2 variant and genetic susceptibility to upper aerodigestive tract cancer
No full text© The Author 2015. Published by Oxford University Press. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact [email protected] Funding This work was supported the National Institutes of Health (R01CA092039 05/05S1) and the National Institute of Dental and Craniofacial Research (1R03DE020116). Notes The authors thank all of the participants who took part in this research and the funders and technical staff who made this study possible. We acknowledge and thank Simone Benhamou (INSERM, France) for sample contributions. We also acknowledge and thank The Cancer Genome Atlas initiative, whose data contributed heavily to this study.Peer reviewe
Transformation of Woman in Bharati Mukherjee’s Jasmine
No full textBharati Mukherjee is truly a global author, an expert in cross-cultural issues and a keen craftswoman who is an expert in portraying the phenomenal, systematic and detailed account of coming-of-age. She knows how to keep her readers glued to her writings. She builds a mystery and then demystifies it page after page, with each page unfolding and unraveling new dimensions of the character she writes about. In this era of globalization, in view of easing borders but mounting cultural differences, the conflict within to adapt to the change is the mainstay of some of her highly acclaimed works. She endeavors to dive deep into the distorted psyche of those immigrants who have been surviving in the conflict of traditional Indian values; inherent in their personality and their fascination for western mode of living that they have chosen out of their professional compulsions or for their urge to achieve a greater freedom in liberal and dynamic society of west. “Framed with the didactics of immigrants and emigrant, the thematic difference of which centers much of Bharati Mukherjee’s fiction, her focus remains the predicament of migrant entities and the possibilities for absorption and rejection in the new world” (Jamwal 1). In her own words, Mukherjee finds this conflict of cultures to be an adventure worth living. She has found herself “thrust into adventures. Once I left the very protective, overly nurturing society [of India], my life intersected history” (Steinberg 33). The cultural intermingling in her work is the reflection of her personal life too. She was born in Calcutta (India), and then migrated to America. She married Clarke Blaise, who is settled in Canada. Her life is one of the perfect examples of mixing of two cultures. However, the cultural conflicts and identity crisis continues – as she names her two sons as Bart Anand and Bernard Sudhir – by mixing English and Bengali names. This struggle for identifying oneself is very well reflected in her works and underlines the relevance of cross-cultural differences in one's life. The conflict between a protective patriarchal society's upbringing and that of the values of a free society of the west is the substratum for casting the web of her stories. Just like a spider's web – neatly crafted-- her stories catch the reader's enthusiasm, line after line until the reader reaches to the core of this web. The centre stage of her stories is mainly acceptance of the truth. She finely builds the plot, based on a systematic circumstantial theme, and is able to justify life as it is. She does not make any comment but the transition of the petite Indian village belle theme climaxing to a western world, gives the reader an opportunity to understand the turn of events in a beautiful manner
Influence of smokeless tobacco exposure on detoxification status and chromosomal damage in male and female habitues
No full textIn India, a large number of tobacco chewers and masheri users are chronically exposed to tobacco genotoxicants. Detoxification processes involving cellular glutathione (GSH) and glutathione S-transferases (GST) determine the outcome of exposure to environmental mutagens including those present in tobacco. Hence, in this study, GSH levels, GST activity, GSTM1 genotype and cytogenetic damage were determined using lymphocytes from 114 smokeless tobacco habitues and controls. The study groups comprised of male tobacco chewers, female masheri users, and age- and sex-matched controls. Irrespective of the tobacco habit, GSH levels and GST activity were higher in females than in males. In both the groups of habitues, GSH levels were similar to those in controls, while a significant reduction in GST activity was observed in tobacco chewers only. The frequency of cytogenetic alterations was significantly elevated in both the groups of habitues with respect to controls. However, break-type aberrations were more frequent in tobacco chewers while gaps were commonly observed in masheri users. Differences in the nature of chromosomal alterations in the two groups of habitues appeared to be related to variation in total tobacco exposure and gender-related differences in the efficacy of the GSH/GST detoxification system
Singling out the place where rules apply: materials from the discussion on Panini’s description of substitution
No full textThis paper aims at taking Panini’s substitution descriptive method out of its supposed limited domain of allomorphy (Kiparsky 2009: 86), to show that it is rather part of a broader conceptualization of linguistic units in spatial terms, i.e. as “places” where “things” i.e. linguistic phenomena described by rules, happen (following the lead indicated by Kahrs (1998: 184)). In particular, while discussing on the thirteen dosavarttikas (vts. 18–30) on A. 1.1.56, by mainly relying on the textual dimension of the As..ta ̄dhya ̄y ̄ı and on the usus scribendi of the author, we advanced that Pa ̄n.ini’s linguistic units are not endowed with a mandatory fixed status, a misunderstanding which instead prevented ancient and modern interpreters (e.g. Joshi and Rood- bergen 1985, 1990) from solving these supposed shortcomings in the mechanism of substitution. On the contrary, he might have envisioned the different units as scalar categories, whose prototypes were verbal bases and affixes on the one hand and the single meaningless phoneme on the other. Consistently, Panini’s explicit classification of rules again is not abstract and functional but based upon the explicit mention of a relevant linguistic “place” and the way in which it is, each time, described: Panini’s strategy encompasses both devices to shift the status of a linguistic unit from phone to morph and vice versa
