14 research outputs found
Residual Energy-Aware Clustering Transformation for LEACH Protocol, Journal of Telecommunications and Information Technology, 2021, nr 2
Energy is one of the crucial performance parameters in wireless sensor networks (WSNs). Enhancement of network lifetime is an important consideration as well. Low energy-aware clustering hierarchy (LEACH) is one of the protocols proposed for WSNs. In this paper, a residual energy-aware clustering transformation protocol for LEACH (REACT-LEACH), enhancing performance of LEACH by introducing a clustering mechanism, is proposed. The proposed cluster head (CH) rotation and cluster reformation processes are more effective in REACT-LEACH, as residual energy is considered to be one of the metrics. Performance of REACT-LEACH is validated based on simulation
Stress Detection Indicators: A Review
Stress is the way of body's response to any kind of demand in the normal life. The body reacts to these changes in terms of physical, mental and emotional responses. There are sample number of works being carried out to measure stress using physiological parameters such as Galvanic Skin Response (GSR), Blood Pressure (BP), Heart Rate (HR), Breathing Pattern, Speech Signal, ECG (Electro cardiograph) and EEG (Electroencephalography). This paper presents a qualitative analysis of different physiological parameters used to determine the stress level.
Residual Energy-Aware Clustering Transformation for LEACH Protocol
Energy is one of the crucial performance parameters in wireless sensor networks (WSNs). Enhancement of network lifetime is an important consideration as well. Low energy-aware clustering hierarchy (LEACH) is one of the protocols proposed for WSNs. In this paper, a residual energy-aware clustering transformation protocol for LEACH (REACT-LEACH), enhancing performance of LEACH by introducing a clustering mechanism, is proposed. The proposed cluster head (CH) rotation and cluster reformation processes are more effective in REACT-LEACH, as residual energy is considered to be one of the metrics. Performance of REACT-LEACH is validated based on simulations
Candida spp. other than Candida albicans : A major cause of fungaemia in a tertiary care centre
This study was conducted to determine the frequency of different
Candida spp. isolated from different parts of the hospital,
associated risk factors and mortality rate. A total of 59 cases were
selected for prospective analysis over a period of one and half years.
Blood samples collected were processed by BACTEC (9240) method.
Candidaemia was diagnosed by positive blood culture at least from two
blood culture samples or from a clinically significant single blood
culture sample. Candida spp. were identified by standard techniques.
Most frequent isolates were C. tropicalis (35.6%), C. parapsilosis
(28.8%), C. glabrata (11.9%) and C. pelliculosa (11.9%). Candida
albicans was isolated only in 3.4% cases. Neonatology department
accounted for highest number of isolates (27.1%), followed by
gastrointestinal surgery (15.3%) and cardiac surgery (13.6%). Mortality
was noted in 16.9%. Probable risk factors determined were intensive
care unit stay (74.6%), antibiotic therapy (50.8%), central line
(42.4%), urinary catheter (32.2%), ventilator (23.7%), malignancy
(20.3%) and abdominal surgery (15.3%)
Case Report - Late prosthetic valve endocarditis due to Cardiobacterium hominis , an unusual complication
We report a case of prosthetic valve endocarditis caused by
Cardiobacterium hominis in a patient who had undergone atrial septal
defect closure and mitral valve replacement of the heart in 1978. He
presented with pyrexia of unknown origin and congestive cardiac
failure. Investigations revealed infective endocarditis of prosthetic
valve in mitral portion. Blood culture samples grew C. hominis . The
patient was empirically started on vancomycin and gentamicin
intravenously and ceftriaxone was added after isolation of the
organism. Though subsequent blood cultures were negative, patient
remained in congestive cardiac failure and died due to complications