aslam khan

An aluminium deuteride band at 2187 Å has been observed and analysed. The analysis showed that the band is analogous to the (1, 0) band of AlH at 2173 Å belonging to the 2229 Å system. The following rotational constants are calculated: Bν' = 3.162 cm-1 Dν' = 1.53 × 10-4 cm-1 Bν" = 3.283 cm-1 Dν" = 0.97 × 10-4 cm-1 ν0 = 45 639.41 cm-1.

Absorption spectra of BaH and BaD have been obtained in the region 4000-3000 Angstrom by using a King furnace. The (0, 1) band of BaH and the (1, 0) and (0, 1) bands of BaD corresponding to the F2Σ -> X2Σ system of BaH have been observed and analysed. In addition, a new band of BaH at 3163 Angstrom has

Two new bands of aluminium hydride have been found in the far ultra-violet region of the spectrum at 2173 Å and 2101 Å. The rotational analysis shows that they are the (1, 0) and (0, 1) bands of the systems C1Σ → A1Σ and D1Σ → A1Σ respectively. The (0, 1) band at 2101 Å shows perturbation as well as predissociation. The rotational constants for the (0, 1) band and the (1, 0) band are calculated as follows: D1Σ → A1, (0,1) band: Bv' = 6.56 cm-1, Bv'' = 6.16 cm-1, Dv' = 6.1 × 10-4 cm-1, Dv'' = 3.3 × 10-4 cm-1, ν0 = 47665.6 cm-1 C1Σ → A1, (1,0) band: Bv' = 5.87 cm-1, Bv'' = 6.33 cm-1, Bv' = 13 × 10-4 cm-1, Bv'' = 3.2 × 10-4 cm-1, ν0 = 45922.45 cm-1

A band of the CaH molecule has been observed in the ultra-violet region of the spectrum with its P head at 2720 Å. The analysis showed that the band is the (0, 0) band of a new system belonging to F2Σ → X2Σ transition. The fact that the band has appeared only in absorption and not in emission at ordinary pressures shows that the upper state of the molecule is predissociated. This is also confirmed by the very diffuse nature of the rotational lines. It has been suggested that the predissociation is caused most probably by a 4Σ or 4II term originating from the first 3D atom term. In addition, a diagram showing correlation of the observed molecular states to the atomic states of some of the analogous molecules is given. The rotational constants of the F2Σ → X2Σ band are given below: B0' = 4.70 cm-1 B0" = 4.24 cm-1 v00' = 36793.60 cm-1

Details of the construction of a discharge tube, useful in both emission and absorption, are given. Two new bands of SrH at 3290 Å and 2927 Å (P head) and a SrD band at 2928 Å (P head) have been observed in absorption. Rotational analysis of the band at 2927 Å leads to its assignment as the (0, 0) band of a transition which may be called F2Σ → X2Σ. The following rotational constants have been calculated: SrH B0' = 4.14 cm-1, D' = 1.87 × 10-4 cm-1, ν00 = 34185.91 cm-1; SrD B0' = 2.04 cm-1, D' = 4.25 × 10-5 cm-1, ν00 = 34166.06 cm-1.

The Te values as given in Herzberg's book on diatomic molecules for the analogous bands of MgH and MgD for the transition A2II → X2Σ have been recalculated. The vibrational constants of MgH for the above transition have also been reviewed and as a result more accurate values of these have been obtained.These calculations are based on the experimental data

Brugada syndrome is a genetic cause of sudden cardiac arrest characterized by abnormal electrocardiographic (ECG) pattern in the right precordial leads either at rest or after provocation. In this condition, sudden death may occur due to polymorphic ventricular tachycardia or ventricular fibrillation. In approximately 30% of patients, sudden cardiac arrest is the initial clinical manifestation of Brugada syndrome. Treatment strategies for Brugada syndrome are evolving. Currently, the implanted cardioverter defibrillator (ICD) is the only proven treatment for Brugada syndrome. Candidates for ICD include patients include those with the type 1 ECG pattern or who have been successfully resuscitated from sudden death or have had unexplained syncope.

The magnesium hydride bands at 2172, 2100 and 2088 Å (in absorption) and the magnesium deuteride bands at 2172, 2358 and 2364 Å (in emission) have been observed and analysed. Their rotational constants are calculated and a correlation of the molecular states of MgH to the atomic states of Mg is made. The predissociation of some of the molecular states is discussed and it is proposed that this is caused by a 4Σ term and not by a 2Σ term as proposed by earlier workers.

... Similarities are also evident with the developmental features of Myrica gale (Fletcher, 1955). ... PI. Physiol. 18, 107-26. FLETCHER, WW, 1955. The development and structure of the root nodules of Myrica gale L. with special reference to the nature of the endophyte. Aim. Bot. ...

Thorotrast-related liver cancer is rare. A case of such cancer is presented. Thorotrast had been used intravenously in 1947, 38 years preceding the detection of cancer. A brief history of the use of colloidal solution of thorium dioxide (thorotrast) as a contrast material is discussed, along with a review of literature. Potential hazards of thorotrast in its carriers and a close follow-up are emphasized.

Arrhythmogenic right ventricular dysplasia (ARVD), also known as arrhythmogenic right ventricular cardiomyopathy, is a genetic cause for sudden cardiac arrest. In ARVD, there is progressive replacement of normal myocytes, with fat and fibrous tissue, predominantly in the right ventricle that predisposes the individual to arrhythmias. Patients who are identified with this condition are risk stratified; those at high risk are recommended to have implanted cardioverter defibrillators.

Acinetobacter species are non-motile, oxidase-negative, gram-negative coccobacilli found commonly in soil and water, but they can be part of normal flora. They are opportunistic pathogens that readily colonize patients who have compromised host defenses. A variety of human infections ...

The aqueous methanolic extract of the aerial parts of Salvia officinalis (So.Cr) was studied to provide possible underlying mechanism(s) for its medicinal use in asthma using the in vivo bronchodilatory assay and isolated tracheal preparations. S. officinalis (1-10 mg/kg) dose-dependently inhibited carbachol (CCh)-induced bronchospasm in anesthetized rats with three-fold greater potency than the positive control, aminophylline. In tracheal preparations, So.Cr inhibited the low K(+) (25 mM)-induced contractions. Pretreatment of the tissues with 4-aminopyridine reversed the inhibitory effect of the plant extract against low K(+) , whereas glibenclamide did not show any effect, thus showing the involvement of voltage-sensitive K(+) channels. When tested against the CCh-induced pre-contractions for the involvement of any additional mechanism, interestingly, the extract showed a dose-dependent (0.03-0.1 mg/mL) inhibitory effect and shifted the inhibitory concentration response curves of isoprenaline to the left, thus showing phosphodiesterase enzyme inhibitory-like action, similar to that of papaverine. These results indicate that the crude extract of S. officinalis possesses bronchodilatory activity mediated predominantly via activation of voltage-dependent K(+) channels and inhibition of phosphodiesterase enzyme; thus, this study provides sound pharmacological basis for its medicinal use in hyperactive airways disorders such as asthma and cough. Copyright © 2015 John Wiley & Sons, Ltd.

ABSTRACT Key Features (Of the Book; "Mineral Scales and Deposits") Provides a unique, detailed focus on scale deposits, includes the basic science and mechanisms of scale formation Present a field-friendly overview of scale-related challenges and technological options for their mitigation Correlates chemical structure to performance. Provides guidelines for easy assessment of a particular case, also including solutions Includes an extensive list of industrial case studies for reference Description Mineral Scales and Deposits: Scientific and Technological Approaches presents, in an integrated way, the problem of scale deposits (precipitation/crystallization of sparingly-soluble salts) in aqueous systems, both industrial and biological. It covers several fundamental aspects, also offering an applications’ perspective, with the ultimate goal of helping the reader better understand the underlying mechanisms of scale formation, while also assisting the user/reader to solve scale-related challenges. It is ideal for scientists/experts working in academia, offering a number of crystal growth topics with an emphasis on mechanistic details, prediction modules, and inhibition/dispersion chemistry, amongst others. In addition, technologists, consultants, plant managers, engineers, and designers working in industry will find a field-friendly overview of scale-related challenges and technological options for their mitigation. Readership For scientists/experts working in academia, it offers a number of crystal growth topics with emphasis on mechanistic details, prediction modules, inhibition/dispersion chemistry, etc. For technologists, chemists, chemical engineers, water technologists, consultants, plant managers, plant engineers, plant designers working in industry, it provides a more field-friendly overview of scale-related challenges and technological options to mitigate them. URL; http://store.elsevier.com/Mineral-Scales-and-Deposits/isbn-9780444632289/ Copyright © 2015 Elsevier B.V. All rights reserved. Elsevier

This study describes the antidiarrheal and antispasmodic activities of the hydro-alcoholic extract of Buddleja polystachya (Bp.Cr) with possible mode of action explored along with activity-directed fractionation. Bp.Cr and its aqueous (Bp.Aq) and organic fractions, petroleum ether (Bp.Pet), dichloromethane (Bp.DCM), ethylacetate (Bp.EtAc) and butanol (Bp.But), were tested using the in-vivo and in-vitro assays. The crude extract (100-300 mg/kg) showed 20 and 60% protection of castor oil-induced diarrhea in mice. In isolated rabbit jejunum, Bp.Cr like papaverine inhibited spontaneous and high K(+) (80 mM)-induced contractions equi-potently. In guinea-pig ileum, Bp.Cr showed a moderate spasmogenic effect. The activity-directed fractionation revealed that the spasmolytic activity was concentrated in the organic fractions and spasmogenic component in the aqueous fraction. Amongst the organic fractions, BP.DCM and Bp.Pet inhibited spontaneous and high K(+) -induced contractions equi-potently, while Bp.But, like verapamil was more potent against high K(+) . The crude extract and its organic fractions caused rightward shift in the Ca(++) -concentration response curves (CRCs), similar to verapamil, and all except Bp.But potentiated the isoprenaline-inhibitory CRCs to the left, similar to papaverine. The results of this study indicate that the crude extract of B. polystachya possesses antidiarrheal and antispasmodic activities, mediated possibly through dual inhibition of Ca(++) influx and phospodiesterase enzyme.

Two new bands of SrH at 3115 Å and 2718 Å and three new bands of SrD at 3115 Å, 2848 Å and 3001 5 Å have been observed in absorption using a King-type furnace containing strontium metal and hydrogen (deuterium) at a temperature greater than 1300 °C. Whereas the SrH band at 3115 Å is shown to be the

ABSTRACT This manuscript communicates the synthesis, characterization and its subsequent application in Cd(II) ions sequestration of thiosemicarbazide functionalized nano silica spheres. The spheres are developed by sol-gel method, activated with an organosilane precursor and later on conjugated with thiosemicarbazide through one step Manich reaction. The successful grafting is confirmed through FTIR, TGA, SEM and EDX analysis. The Cd(II) ions sequestration from aqueous solutions is studied exhaustively in competitive and non competitive environments in batch experiments using radiotracer technique. The sorption process is fast and attain equilibrium in 40 minutes time with 98% Cd(II) ions sequestration at pH 7 and follows first order kinetics (K = 0.0465 min-1). The sorption data follow the Langmuir, Freundlich and Dubinin-Radushkevich (D-R) isotherms and its characteristic constants: N = 10 mmole g1 and b = (0.1)  104 dm3 mole1, 1/n = 0.64 and of Cm=0.04 mmole g-1 and D-R constants = −0.00064 kJ2 mole-2, Xm=1.8 mmole g-1 and Es=8.8 kJ mole-1 have been computed. The sorption of Cd(II) ions onto nano spheres is spontaneous (∆G= -1050.00 Jmol-1K-1) and endothermic in nature (∆H=2.45 Jmol-1K-1). The Cd(II) ions sequestration is highly reduced in the presence of Cyanide, EDTA, Aluminum and Nickel ions. The sorbent is regenerable and can be used several times.

Syzygium samarangense (Family; Myrtaceae) or 'makopa', as it is commonly known, is native to Malaysia, some islands of Indonesia and to Far East in general. This study was undertaken to rationalize the use of this plant in hypermotility states of the gut. The hexane extract of S. samarangense (Ss.Hex) was found to dose-dependently (10-3000 microg/mL) relax the spontaneously contracting isolated rabbit jejunum. When tested for a possible calcium channel blocking (CCB) activity, the extract (10-1000 microg/mL) relaxed the high K+-induced contractions and also decreased the Ca++ dose-response curves in a dose-dependent manner (30-100 microg/mL), confirming the CCB activity. Four flavonoids isolated from the hexane extract were tested for a possible spasmolytic activity. All flavonoids, identified as: 2'-hydroxy-4',6'-dimethoxy-3'-methylchalcone (SS1), 2',4'-dihydroxy-6'-methoxy-3',5'-dimethylchalcone (SS2), 2',4'-dihydroxy-6'-methoxy-3'-methylchalcone (SS3) and 7-hydroxy-5-methoxy-6,8-dimethylflavanone (SS4), showed dose-dependent (10-1000 microg/mL) spasmolytic activity with SS2 being the most potent. These results indicate that the presence of compounds with spasmolytic and calcium antagonist activity may be responsible for the medicinal use of the plant in diarrhoea.