24 research outputs found
Prevalence and correlates of geriatric depression in a rural community in Kerala, India
Background: Elderly constitutes a vulnerable group for depression, as they are especially prone to suffer adverse consequences of a depressive episode and have greater rates of completed suicides. This study aims to estimate the prevalence and determinants of geriatric depression.
Methods: A cross-sectional study was done among 250 elderlies from 1st January 2019 to 1st January 2020 in the different rural blocks of Ernakulam district, India. The multistage sampling technique and the Geriatric Depression Scale (GDS-30) were used to collect the data. A score of 0 9 is considered "normal", 10 19 is labeled as "mildly depressed", and 20 30 as "severely depressed". Statistical analysis was performed using the IBM SPSS software. The Chi-square test /Fisher's exact test was used to study the association between the socio-demographic and behavioral variables with depression.
Results: The mean age was 69.33 ± 7.41years and male: female ratio was 0.55: 1.The overall prevalence of depression was 52.4%. Advanced age over 70years [OR=2.04;95% CI, 1.227 – 3.394; P=0.006], female gender[OR=2.844;95% CI,1.663-4.865; P =<0.001], lack of gainful employment [OR=3.504; 95% CI, 1.833–6.699; P =<0.001], physical dependence [OR=0.365;95% CI,0.162–0.821; P =0.012], financial dependence [OR=0.388; 95% CI, 0.219–0.687; P =<0.001], presence of medical co morbidities [OR=0.428; 95% CI, 0.212–0.866; P =0.016],poor lifestyle including the lack of regular exercise [OR =2.020; 95% CI,1.174–3.473; P =0.010], addiction to alcohol [OR=4.932;95%CI,1.600-15.208; P =0.004] and addiction to tobacco smoking [OR=2.905;95%CI,1.273-6.628; P =0.009] and poor family support [OR= 5.180;95% CI,716–15.636; P = 0.002] were found to be significantly associated with depression.
Conclusion: The prevalence of depression among the elderlies was high, and hence early diagnosis and prompt treatment are essential to reduce its burden in the community
First record of Aphanopus microphthalmus Norman, 1939 (Teleostei: Trichiuridae) from the Indian Exclusive Economic Zone
Aphanopus microphthalmus Norman, 1939 is a rare benthopelagic deep-sea species occurring at depths of 810 to 1020 m previously reported from Western Indian Ocean, eastern South Atlantic and South China Sea. Occurrences of this species from the world Oceans are found to be scanty. The present specimens, collected at a depth of 1022 m, represent the first occurrence of this genus in the Indian Exclusive Economic Zone, and first record of this species in the southeastern Arabian Sea.
Biodiversity and Ecology of deep-sea megafauna within the 1500 m depth zone of Terrace off Trivandrum
Mobility Metric based LEACH-Mobile Protocol
Cluster based protocols like LEACH were found
best suited for routing in wireless sensor networks. In mobility
centric environments some improvements were suggested in the
basic scheme. LEACH-Mobile is one such protocol. The basic
LEACH protocol is improved in the mobile scenario by ensuring
whether a sensor node is able to communicate with its cluster
head. Since all the nodes, including cluster head is moving it will
be better to elect a node as cluster head which is having less
mobility related to its neighbours. In this paper, LEACH-Mobile
protocol has been enhanced based on a mobility metric
“remoteness” for cluster head election. This ensures high success
rate in data transfer between the cluster head and the collector
nodes even though nodes are moving. We have simulated and
compared our LEACH-Mobile-Enhanced protocol with LEACHMobile.
Results show that inclusion of neighbouring node
information improves the routing protocol.Cochin University of Science and TechnologyADCOM 200
Impact of Node Mobility on Routing Protocols for Wireless Sensor Networks
Wireless sensor networks monitor their
surrounding environment for the occurrence of some
anticipated phenomenon. Most of the research related to
sensor networks considers the static deployment of sensor
nodes. Mobility of sensor node can be considered as an
extra dimension of complexity, which poses interesting
and challenging problems. Node mobility is a very
important aspect in the design of effective routing
algorithm for mobile wireless networks. In this work we
intent to present the impact of different mobility models
on the performance of the wireless sensor networks.
Routing characteristics of various routing protocols for
ad-hoc network were studied considering different
mobility models. Performance metrics such as end-to-end
delay, throughput and routing load were considered and
their variations in the case of mobility models like
Freeway, RPGM were studied. This work will be useful to
figure out the characteristics of routing protocols
depending on the mobility patterns of sensorsCochin University of Science and
TechnologyInternational Conference on Sensors and Related Networks (SENNET’07),
VIT University, Vellore, India. Dec. 12-14, 2007. pp.480-485
Routing protocol enhancement for handling node mobility in wireless sensor networks
In wireless sensor networks, the routing
algorithms currently available assume that the sensor nodes are
stationary. Therefore when mobility modulation is applied to the
wireless sensor networks, most of the current routing algorithms
suffer from performance degradation. The path breaks in mobile
wireless networks are due to the movement of mobile nodes, node
failure, channel fading and shadowing. It is desirable to deal with
dynamic topology changes with optimal effort in terms of
resource and channel utilization. As the nodes in wireless sensor
medium make use of wireless broadcast to communicate, it is
possible to make use of neighboring node information to recover
from path failure. Cooperation among the neighboring nodes
plays an important role in the context of routing among the
mobile nodes. This paper proposes an enhancement to an existing
protocol for accommodating node mobility through neighboring
node information while keeping the utilization of resources to a
minimum.Cochin University of Science and TechnologyTENCON 2008-2008 IEEE Region 10 Conferenc
Routing Protocol Enhancement for handling Node Mobility in Wireless Sensor Networks
In wireless sensor networks, the routing
algorithms currently available assume that the sensor nodes are
stationary. Therefore when mobility modulation is applied to the
wireless sensor networks, most of the current routing algorithms
suffer from performance degradation. The path breaks in mobile
wireless networks are due to the movement of mobile nodes, node
failure, channel fading and shadowing. It is desirable to deal with
dynamic topology changes with optimal effort in terms of
resource and channel utilization. As the nodes in wireless sensor
medium make use of wireless broadcast to communicate, it is
possible to make use of neighboring node information to recover
from path failure. Cooperation among the neighboring nodes
plays an important role in the context of routing among the
mobile nodes. This paper proposes an enhancement to an existing
protocol for accommodating node mobility through neighboring
node information while keeping the utilization of resources to a
minimum.Cochin University of Science and TechnologyTENCON 2008-2008 IEEE Region 10 Conferenc
Use of a vascular sheath for introduction of radiofrequency ablation probe during radiofrequency ablation of osteoid osteoma
Radiofrequency ablation (RFA) has now become a preferred treatment option for osteoid osteoma. Accurate placement of RFA probe into the nidus of osteoid osteoma is important for good clinical outcome. Various methods and techniques have been described in the literature available. We describe the technique of using a vascular access sheath for introduction of RFA probe after bone drilling, which prevents loss of access to drill track and also serves as a pathway for accurate placement of RFA probe, thereby reducing the risk of damage to the RFA probe tip itself and the surrounding soft tissue
Routing Protocol Enhancement for handling Node Mobility in Wireless Sensor Networks
In wireless sensor networks, the routing
algorithms currently available assume that the sensor nodes are
stationary. Therefore when mobility modulation is applied to the
wireless sensor networks, most of the current routing algorithms
suffer from performance degradation. The path breaks in mobile
wireless networks are due to the movement of mobile nodes, node
failure, channel fading and shadowing. It is desirable to deal with
dynamic topology changes with optimal effort in terms of
resource and channel utilization. As the nodes in wireless sensor
medium make use of wireless broadcast to communicate, it is
possible to make use of neighboring node information to recover
from path failure. Cooperation among the neighboring nodes
plays an important role in the context of routing among the
mobile nodes. This paper proposes an enhancement to an existing
protocol for accommodating node mobility through neighboring
node information while keeping the utilization of resources to a
minimum.Cochin University of Science and Technolog