AN OBSERVATIONAL STUDY ON THE ROLE OF DECAF SCORE IN PREDICTING PROGNOSIS IN PATIENTS WITH ACUTE EXACERBATION OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE.

Objective: The study was done to validate the DECAF score for the prediction of prognosis in AECOPD patients. Methodology: 92 AECOPD patients were given scores as per the DECAF system. Patients were monitored during their whole hospital stay. The final results were classified as death and recovery.  DECAF score’s importance for the prediction of clinical outcomes was analyzed. Result: Out of 92 patients evaluated, 27 had a DECAF score range between 0-1 (low risks), 5-9 had a DECAF score range between 2-4 (intermediate risks), and 6 had a DECAF score range between 5-6 (high risks). The high-risk group experienced a 100% fatality rate. On the other hand, there was no mortality seen in patients with DECAF scores 0-4 & all the patients recovered successfully. Conclusion: DECAF score uses routine parameters to classify AECOPD Patients into clinically relevant risk groups. Doctors are benefitted from this regarding management purposes

Factors Mfecting Moisture Absorption in Polymer Composites13; Part ll: Influence of External Factors

The influence of external factors like relative humidity (0) and ambient temperature .m on the moisture absorption behaviour of permeable {Jute-Epoxy)Land impermeable13; (Glass Epoxy and Graphite-Epoxy) types of composites were reported. The respective equilibrium moisture contents (M and Mm) increased exponentially relative humidity. The diffusion coefficients of both type of composites :and Dc) increased with ambient temperature and could be represented by an Arrhenius relationship.13; The permeable composite showed a higher exponential power on the relative humidity term than the impermeable composite (2.64 for Jute composite as compared to 2.0 reported by Shen and Springer for a graphite composite) and a lower activation energy for diffusion (0.9 x 103 cal. mole-t for the jute composite as compared to 4.429 x 103cal. mole-t obtained for a glass composite). These trends were attributed to the fibre permeability leading to different diffusion barriers in such composites.13

Factors affecting moisture absorption in polymer composites. I - Influence of internal factors. II - Influence of external factors

Moisture absorption data obtained for jute and glass-epoxy composites under the influence of identical internal factors are presented. The observed dissimilarities in behavior are described in terms of different composite schematic models depicting the typical flow paths in both types of materials. The relative composite permeabilities are discussed in terms of typical fiber permeabilities and the diffusion paths preferred by the moisture in the composites. Then, the influence of external factors on the moisture absorption characteristics of permeable and impermeable jute-epoxy, glass, and graphite-epoxy composites is reported

Science of engineering materials : engineering properties

Volume 3.xiii, 232 p.; 21 cm

Science of engineering materials : engineering properties

Volume 3.xiii, 232 p.; 21 cm

Atomic structure and the chemical bond : including molecular spectroscopy

xiii+506hlm.;22c

Science of engineering materials : structure of matter

Vol I.xi, 247 p.; 21 cm

Atomatic structure and chemical bond : including molecular spectroscopy

xiv, 416 p. : il.; 23 cm

Sorption of copper ions on templated poly (4- vinly pyridine) resins

The equilibrium and kinetics of sorption of Cu ions at low solution concentration on $Cu^{2+}$-templated poly(4-vinylpyridine) resin were studied. The Langmuir isotherm equation fits the equilibrium sorption data well, while the kinetic data agree with a modified shrinking core model for fluid-solid chemical reactions. Pore diffusion controls the exchange rates at low solution concentration. The diffusion coefficient which lies within the normal expected range for chelating resins increases with increasing solution concentration, besides temperature. This phenomenon is discussed in the light of similar observations reported for ion exchange resins in the literature

Monitoring the Curing of Furan Resins through the Exothermic Heat of Reaction

The curing reaction of furan resins was monitored through the exothermic heat of reaction by means of a simple technique. p-Toluene sulphonic acid dissolved in acetone was used to catalyse the curing reaction. A "cure rate index", defined as the maximum temperature rise per unit time per unit mass of the resin, was used as a measure of the rate of cure. The index value increases exponentially with the catalyst concentration. Interestingly, for the same catalyst concentration the index value also increases significantly with the period of ageing of the catalyst solution. A method is developed for deriving the activation energy for the curing reaction from the exothermic heat data for non-isothermal cure. The activation energy is found to increase with resin viscosity and to decrease exponentially with increasing catalyst concentration. Quantitative expressions are derived relating activation energy with catalyst concentration