29 research outputs found
Accurate location estimation of moving object In Wireless Sensor network
One of the central issues in wirless sensor
networks is track the location, of moving object which
have overhead of saving data, an accurate estimation of
the target location of object with energy constraint .We do
not have any mechanism which control and maintain data
.The wireless communication bandwidth is also very
limited. Some field which is using this technique are flood
and typhoon detection, forest fire detection, temperature
and humidity and ones we have these information use these
information back to a central air conditioning and
ventilation.
In this research paper, we propose protocol based on the
prediction and adaptive based algorithm which is using
less sensor node reduced by an accurate estimation of the
target location. We had shown that our tracking method
performs well in terms of energy saving regardless of
mobility pattern of the mobile target. We extends the life
time of network with less sensor node. Once a new object is
detected, a mobile agent will be initiated to track the
roaming path of the object
A Fault-Tolerant Mobile Computing Model Based On Scalable Replica
The most frequent challenge faced by mobile user is stay connected with online data, while disconnected or poorly connected store the replica of critical data. Nomadic users require replication to store copies of critical data on their mobile machines. Existing replication services do not provide all classes of mobile users with the capabilities they require, which include: the ability for direct synchronization between any two replicas, support for large numbers of replicas, and detailed control over what files reside on their local (mobile) replica. Existing peer-to-peer solutions would enable direct communication, but suffers from dramatic scaling problems in the number of replicas, limiting the number of overall users and impacting performance. Roam is a replication system designed to satisfy the requirements of the mobile user. Roam is based on the Ward Model, replication architecture for mobile environments. Using the Ward Model and new distributed algorithms, Roam provides a scalable replication solution for the mobile user. We describe the motivation, design, and implementation of Roam and report its performance. Replication is extremely important in mobile environments because nomadic users require local copies of important data
Relationship of APOA5, PPARĪ³ and HL gene variants with serial changes in childhood body mass index and coronary artery disease risk factors in young adulthood
<p>Abstract</p> <p>Background</p> <p>Triglycerides is an independent risk factor for coronary artery disease (CAD) and is especially important in Indians because of high prevalence of hypertriglyceridemia in this population. Both genetic and environmental factors determine triglyceride levels. In a birth cohort from India, hypertriglyceridemia was found in 41% of men and 11% of women. Subjects who had high triglycerides had more rapid body mass index (BMI) or weight gain than rest of the cohort throughout infancy, childhood and adolescence. We analysed polymorphisms in <it>APOA5</it>, hepatic lipase and <it>PPARĪ³</it> genes and investigated their association with birth weight and serial changes in BMI.</p> <p>Results</p> <p>Polymorphisms in <it>APOA5</it> (-1131T > C, S19W), <it>PPARĪ³</it> (Pro12Ala) and hepatic lipase (-514C > T) were studied by polymerase chain reaction (PCR) followed by restriction digestion in 1492 subjects from the New Delhi Birth Cohort (NDBC). We assessed whether these polymorphisms influence lipid and other variables and serial changes in BMI, both individually and together.</p> <p>The risk allele of <it>APOA5</it> (-1131C) resulted in 23.6 mg/dl higher triglycerides as compared to normal allele (P < 0.001). Risk allele of HL (-514T) was associated with significantly higher HDL2 levels (P = 0.002). Except for the marginal association of <it>PPARĪ³</it> Pro12Ala variation with a lower conditional weight at 6 months, (P = 0.020) and A<it>POA5</it> S19W with a higher conditional BMI at 11 yrs of age (P = 0.030), none of the other associations between the gene polymorphisms and serial changes in body mass index from birth to young adulthood were significant.</p> <p>Conclusion</p> <p>The promoter polymorphism in <it>APOA5</it> was associated with raised serum triglycerides and that of HL with raised HDL2 levels. None of the polymorphisms had any significant relationship with birth weight or serial changes in anthropometry from birth to adulthood in this cohort.</p
The genetic basis of DOORS syndrome: an exome-sequencing study.
Deafness, onychodystrophy, osteodystrophy, mental retardation, and seizures (DOORS) syndrome is a rare autosomal recessive disorder of unknown cause. We aimed to identify the genetic basis of this syndrome by sequencing most coding exons in affected individuals
Accurate location estimation of moving object in wireless sensor network
One of the central issues in wirless sensor
networks is track the location, of moving object which
have overhead of saving data, an accurate estimation of
the target location of object with energy constraint .We do
not have any mechanism which control and maintain data
.The wireless communication bandwidth is also very
limited. Some field which is using this technique are flood
and typhoon detection, forest fire detection, temperature
and humidity and ones we have these information use these
information back to a central air conditioning and
ventilation.
In this research paper, we propose protocol based on the
prediction and adaptive based algorithm which is using
less sensor node reduced by an accurate estimation of the
target location. We had shown that our tracking method
performs well in terms of energy saving regardless of
mobility pattern of the mobile target. We extends the life
time of network with less sensor node. Once a new object is
detected, a mobile agent will be initiated to track the
roaming path of the object
Functional paradox in host-pathogen interaction dictates the fate of parasites
The interactions between the protozoan parasite Leishmania and host macrophages are complex and involve several paradoxical functions that are meant for protection of the host but exploited by the parasite for its survival. The initial interaction of the parasite surface molecules with the host-cell receptors plays a major role in the final outcome of the disease state. While the interactions between macrophages and a virulent strain of Leishmania trigger a cascade of cell-signaling events leading to immunosuppression, the interaction with an avirulent strain triggers host-protective immune effector functions. Thus, an incisive study on Leishmania-macrophage interactions reveals functional paradoxes that highlight the concept of 'relativity in parasite virulence'. Using Leishmania infection as a model, we propose that virulence of a pathogen and the resistance (or susceptibility) of a host to the pathogen are relative properties that equate to combinatorial functions of several sets of molecular processes
A Fault-Tolerant Mobile Computing Model Based On Scalable Replica
The most frequent challenge faced by mobile user
is stay connected with online data, while disconnected or poorly
connected store the replica of critical data. Nomadic users
require replication to store copies of critical data on their mobile
machines. Existing replication services do not provide all classes
of mobile users with the capabilities they require, which include:
the ability for direct synchronization between any two replicas,
support for large numbers of replicas, and detailed control over
what files reside on their local (mobile) replica. Existing peer-topeer
solutions would enable direct communication, but suffers
from dramatic scaling problems in the number of replicas,
limiting the number of overall users and impacting performance.
Roam is a replication system designed to satisfy the requirements
of the mobile user. Roam is based on the Ward Model, replication
architecture for mobile environments. Using the Ward Model
and new distributed algorithms, Roam provides a scalable
replication solution for the mobile user. We describe the
motivation, design, and implementation of Roam and report its
performance. Replication is extremely important in mobile
environments because nomadic users require local copies of
important data
A Fault-Tolerant Mobile Computing Model Based On Scalable Replica
The most frequent challenge faced by mobile user is stay connected with online data, while disconnected or poorly connected store the replica of critical data. Nomadic users require replication to store copies of critical data on their mobile machines. Existing replication services do not provide all classes of mobile users with the capabilities they require, which include: the ability for direct synchronization between any two replicas, support for large numbers of replicas, and detailed control over what files reside on their local (mobile) replica. Existing peer-to-peer solutions would enable direct communication, but suffers from dramatic scaling problems in the number of replicas, limiting the number of overall users and impacting performance. Roam is a replication system designed to satisfy the requirements of the mobile user. Roam is based on the Ward Model, replication architecture for mobile environments. Using the Ward Model and new distributed algorithms, Roam provides a scalable replication solution for the mobile user. We describe the motivation, design, and implementation of Roam and report its performance. Replication is extremely important in mobile environments because nomadic users require local copies of important data