Response of Rice Varieties to High Level Nitrogen on Drymatter Production, Yield and Nitrogen Uptake of Rice.

A field experiment was conducted during the kharif 2009 to study the response of rice varieties to over and above recommended dose of nitrogen on drymatter production, Yield and nitrogen uptake were significantly influenced by varieties and nitrogen levels. The variety NLR 28523 showed significantly higher drymatter production at 90 DAS and maturity, yield and nutrient uptake over other varieties viz., NLR 33892, BPT 5204 and NLR 1061. Application of 240 kg N ha-1 showed higher drymatter production at all stages, yield and nitrogen uptake.

New bio-sorbents in the control of chromium (VI) pollution in waste waters.

The sorption abilities of leaves powders of Bhringraj , Aerva lanata, Trianthema portulacastrum L for extracting Chromium (VI) from polluted waters have been studied with respect to various physicochemical parameters such as pH, sorption dosage and equilibrium time. The conditions for maximum removal of Chromium (VI) have been optimized. Ten fold excess of common cation ions present in natural waters, viz., Ca2+, Mg2+ , Cu2+, Zn2+, Ni2+ and Fe2+ have synergistic effect in increasing the % removal of Chromate. SO4 2—and Phosphates are found to be interfering with the extractability of Chromates but NO3 - , Chloride, Fluoride and Carbonate have marginal interference. However, the extraction has never come down below 72.0%. Maximum extractions to an extent of 96.0%, 92.0%, and 84.0% from synthetic waters are observed with the leaves powders of Bhringraj , Aerva lanata, Trianthema portulacastrum L respectively at pH:2 and at optimum equilibration time and sorbent concentrations. The methodologies developed are applied to diverse waste water samples collected from industrial effluents and polluted lakes. The procedures are found to be remarkably successful in removing the Chromiume(VI) from waste waters.

Cracked Tooth Syndrome (CTS) - A Roller Coaster Ride A Review.

Cracked Tooth Syndrome (CTS) is both a transient and progressive condition. CTS is a frequent reason that patients change clinician. Patient reports pain, and often the dentist relies on a periapical radiograph to determine the origin of the pain. Because the CTS is a vital pulp condition, the periapical radiograph is of limited value as a diagnostic test for CTS. As a result, lack of treatment, or inappropriate treatment, will not resolve the symptoms, often causing the patient to seek help from another clinician. Diagnosis of CTS can be difficult, appropriate treatment is necessary to prevent further damage to the tooth, and the failure to diagnose this condition can result in the eventual loss of the affected tooth. This article will present a classification system for CTS and discuss how to accurately diagnose and treat this clinical condition.

Direct and derivative spectrophotometric determination of mercury (II) using diacetylmonoxime benzoylhydrazone (DMBH).

A simple and derivative spectrophotometric method has been developed for the determination of mercury (II) using Diacetylmonoxime benzoylhydrazone (DMBH). Mercury (II) forms an orange coloured water soluble complex with the reagent in basic medium (pH 10.5).The molar absorptivity and Sandell’s sensitivity of coloured species are 2.01 x 104 L.mol-1 cm-1 and 0.0099 mg/cm2 respectively. Beer’s law is obeyed in the range 1.0029 – 12.0354 mg/ml of Hg (II) at lmax 361 nm. The developed derivative spectrophotometric method was employed for the determination of mercury (II). This method has been satisfactorily applied for the determination of mercury (II) in different environmental water samples and biological samples.

Incongruous periapical abscess: a case report.

Abscesses are usually localized and confined to the focus of infection or they can be diffuse, spreading through the tissue spaces. This article highlights a rare case, where the locus of abscess is incongruous to the origin of infection, but the abscess resolved on eliminating the source of infection. Prompt diagnosis, timely administration of antibiotics and initiation of pulp therapy led to successful resolution of this infection.

Amplification of LDH gene from indian strains of Plasmodium vivax.

BACKGROUND & OBJECTIVES: Plasmodium vivax is geographically widespread and responsible for > 50% of malaria cases in India. Increased drug resistance of the parasite highlights the immediate requirement of early and accurate diagnosis as well as new therapeutics. In view of this, the present study was undertaken to amplify P. vivax (Indian strains) lactate dehydrogenase gene (PvLDH) which has been identified as a good target for antimalarials as well as diagnostics. METHODS: P. vivax infected clinical blood samples were collected from southern part of India and were tested with established diagnostic parameters (ICT, Giemsa staining). Total DNA was extracted from blood samples and subjected to PCR using two sets of primers, one for the amplification of full PvLDH gene (951 bp) and the other for a partial PvLDH gene fragment (422bp), covering a variable antigenic region (140aa) as compared to other plasmodial species. RESULTS & CONCLUSION: PCRs for both the full and partial gene targets were optimised and found to be consistent when tested on several P. vivax positive clinical samples. In addition, full gene PCR was found to specifically detect only P. vivax DNA and could be used as a specific molecular diagnostic tool. These amplified products can be cloned and expressed as a recombinant protein that might be useful for the development and screening of antimalarials as well as for diagnostic purposes.

Portal biliopathy.

A young male with portal venous thrombosis presented with obstructive jaundice, due to common bile duct stricture secondary to portal biliopathy.

Removal of toxic Cr(VI) by the adsorption of activated carbons prepared from Simarouba shells.

Removal of toxic Cr(VI) in aqueous medium was investigated using activated carbon adsorbents prepared from Simarouba glauca seed shells. The pH effect, Cr(VI) concentration, adsorbent dosage and contact time period were studied in batch experiment. The removal of Cr(VI) was in general most effective at pH range 2.0-4.0 and high Cr(VI) concentrations. Activated carbons are prepared at 80050 degrees C temperature. One is non-impregnated and the remaining three are impregnated with zinc chloride in 1:1,1:2,1:3 ratio. Important characteristics of activated carbons are also investigated. The data for all the adsorbents fit well to the Freundlich adsorption isotherm. The removal of Cr(VI) is around 97% was observed with 1:2 impregnated activated carbon at pH 3.0 where as other adsorbents showed much lower activities.