Electrochemical Analysis of the Carbon-Encapsulated Lithium Iron Phosphate Nanochains and Their High-Temperature Conductivity Profiles.

Carbon-encapsulated LiFePO (LFP) nanochains were prepared as a cathode material for lithium batteries by sol-gel method using citric acid as the carbon source. The prepared LFP/C material is characterized by structural, morphological, and electrochemical characterization. LFP/C shows an orthorhombic olivine structure with "" space group having an average particle size of 50 nm.

Tuberculosis in ear, nose, and throat practice: its presentation and diagnosis.

Purpose: The aim of this study was to increase awareness of the different presentations of head and neck tuberculosis (TB) and to discuss its diagnostic difficulties.

Materials And Method: A retrospective analysis of patients who presented to us, at a secondary referral hospital, primarily with TB of head and neck was done from January 1999 to July 2003.

Results: A total of 117 patients presented with primary head and neck TB during the study period.

Neonatal citrobacter sepsis: clinical and epidemiological aspects.

Fourteen neonates were diagnosed to have Citrobacter sepsis during 1986-89, representing 4.6% of all cases with bacteriologically proven sepsis. Most of these infants were low birth weight (mean 2046 gm, +/- 750) and preterm (mean 34.