Geosmin and Isoborneol in Black Tilapia(
Oreochromis mossambica)
A. NURUL IZZAH1, F.B.H. AHMAD2, B. JAMILAH*3 and Y.
SALMAH3
Abstract: Traces of geosmin (1) and isoborneol (2) were detected in
volatile compounds isolated from freshly caught black tilapia (Oreachromis
mossambica) form ex-tin mines used as culture ponds. Volatile compounds were
collected using simultaneous distillation extraction (SDE) and analysed using
gas chromatography (GC) coupled with mass spectrometry (MS). 2,4,6-
Trimethylpyridine was used as an internal standard. A solution of authentic
material were used to confirm the presence of (1) and (2).
Key words : Black Tilapia (O. mossambica), geosmin, isoborneol.
*Chemoselective Reduction of
Nitro, Carbonyl and Bifunctional Compound Catalyzed by CoAlPO-5, CoAlPO-11 and
CoAlPO-31 Molecular Sieves
N. Venkatathri* Catalysis Division, National Chemical
Laboratory, Pune-411 008 (India)
Abstract: CoAlPO-5, CoAlPO-11 and CoAlPO-31 were synthesized and
characterized by several physiochemical methods and the catalyst were used for
the reduction of nitro, carbonyl and bifunctional compounds.
Key words : CoAlPO-5, CoAlPO-11, CoAlPO-31, nitro, carbonyl, reduction.
Theoretical Mechanistic
Biochemistry (TMB)Exposition of hydroxyl free Radical (·OH)In diabetes
catastrophe
Dunstan A. A. Akintonwa, Centre for Theoretical
Mechanistic Biochemistry (CTAB)
Abstract: It is catastrophic that in contemporary medicine, amputation is
rife in diabetics with wounds. Theoretical Mechanistic Biochemistry (TMB)
postulates hydroxyl free radical (OH) as the entity responsible for the
proliferation of the cells of the wounds of diabetics by mechanism 2 of
carcinogenesis. Electron spin resonance (esr) is suggested for the monitoring of
the OH in wounds of diabetic patients compared with ordinary wounds of
non-diabetics. By TMB, OH is an oxidant by the electron method of the mechanism
of oxidation or reduction.
The monitoring of 8-oxo-2-deoxyguanosine, an oxidation product of OH in the
wounds is also recommended. The wounds will not heal as long as the OH persists.
To eliminate OH, antioxidants would have to be used. TMB recommends antioxidants
for the scavenging of the OH for the treatment of the wounds. For internal
therapeutic intervention, vitamin C (ascorbic acid), vitamin E (x-tocopherol),
tea polyphenols, redwine, polyphenols, fruits and vegetables, reduced
glutathione (GSH), carotenoids (B-carotene), angiotensin converting enzyme (ACE)
and neutral endo-peptidase (NEP) inhibitors are recommended. For external
treatment of the wounds, antioxidants such as Ionox 100, GSH and other suitable
ones could be used in treating the wounds until the OH has been completely
eliminated.
OH+H (from the antioxidant) H2O (water) is the basis of the combative
options except ACE and NET.
Key words: Diabetics, wounds, hydroxyl free radical (OH), preventive
antioxidants.
Synthesis, characterization
and antimicrobial activity of 3-substitutes phenyl-5-(8-hydroxy quinolinol-5-yl)
isoxazolines
V. G. Patel Muni
Abstract: Various chalcone derivatives (3a-e) were prepared by well known
Claisen - Schmidt condensation reaction of 8- hydroxy-5 quinoline carboxalde
hyde (1) and different substituted acetophenones (2a-e ). The chalcones (3a-e)
were then reacted with hydroxyl amine hydrochloride in aqueous alkali and
yielded 3- substituted phenyl -5- (8- hydroxy quinolinol- 5yl) isoxazolines.
(4a-e). All the isoxazoline derivatives were characterized by elemental
analysis,spectral studies and antimicrobial activites. One of the isoxazolines
(4b) derivative was then treated with transition metal salts and afford metal
chelates of 4b. All the metal chelates were characterized by metal : ligand (M:L.)
ratio, magnetic moment,reflectance spectral studies and antimicrobial
activities.
Synthesis, spectral, crystal
structure and thermal studies of coordination Polymers of Co(II) and Zn(II)
S.D. BORKAR1, H.D.
JUNEJA2 and D.I. SHAHARE1
Abstract: Coordination polymers of suberyl bis - p - tolylcarbamide (SUBPU)
with Co(II) and Zn(II) have been prepared. These coordination polymers have been
characterized by elemental analyses, thermal, infrared spectral and X-ray
diffraction studies. The nature of bonding has been further discussed on the
basis of IR spectral data. Thermogravimetric curve have been analysed critically
and discussed in detail.
Powder X-ray diffraction studies have been undertaken to determine lattice
parameters viz. crystal system, crystal lattice edge. volume and crystallite
size.
Estimation of Nevirapine
from oral suspension by reverse phase high performance liquid chromatography
method
Pai N. R.* and Desai A. S.
Abstract: A simple, precise, fast and selective High Performance Liquid
Chromatography method has been developed for the estimation of Nevirapine from
tablets by external standard method. The analytes were resolved by using mobile
phase of 600:200:200 mix of Buffer (12 g Sodium dihydrogen orthophosphate into
1000ml with water and adjust pH to 3.0 ± 0.05 with O-phosphoric acid) Methanol:
acetonitrile on an Inertsil C18 (250mm ´ 4.6mm, 5µ) column as a stationary phase
and UV 280nm as detection wavelength.
Keywords : Nevirapine. RP-HPLC.
The distribution of metals
in the Dungun River estuary,Terengganu, Malaysia
1MOHD TAHIR, N., 1SUHAIMI, S., 2SHAZILI, N.A.M. and
1HASMIZAN, W.N.W.S.
Abstract: Dissolved metals (i.e. copper, cadmium and lead) were studied
in the Dungun River estuary to determine their distribution and behaviour in the
estuarine region. The water samples were collected at a depth of 1 meter from
the surface water along the estuarine area at different salinity. Samples for
metals analyses were preconcentrated by APDC-MIBK extraction followed by
successive back extraction with HNO3. The acid extracts were then analysed using
GFAAS. Cadmium and lead were found to behave in a non-conservative manner in the
estuary. Positive deviation was observed for cadmium whilst lead exhibited a
negative deviation from the theoretical dilution line. These observations
suggest that the estuary act as a source for cadmium but a sink for lead. Copper
on the hand exhibited a linear relationship with salinity indicating a
conservative distribution along the estuary. Thus, it can be concluded that in
general, the three metals studied behaved differently from each other under
similar estuarine conditions.
The Correct
Theoretical Analysis of the Foundations of Quantum Mechanics
Temur Z. Kalanov,
Abstract: The correct critical analysis of the generally accepted
foundations of quantum mechanics is proposed. The principle of the unity of
formal logic and dialectics is a methodological basis of the analysis. The
purpose of the analysis is to prove that the foundations include logical errors.
The result is as follows: (a) the generally accepted foundations (i.e., the
interpretation of the experimental data on diffraction of quantum particles; the
conception of wave-corpuscle dualism; the probabilistic interpretation of the
psi-function) are logical errors; (b) the pseudo-informational meaning is the
true meaning of the psi-function. Conclusion is that quantum mechanics is not a
physical, objective theory but a pseudo-informational one. Therefore, quantum
mechanics should be replaced by a physical, objective quantum theory.
Keywords: quantum mechanics---foundations of quantum mechanics
Managerial capabilities a
desideratum to water supply engineers
*K. VEERABHADRAM
Abstract: Role of engineers and designers in groundwater protection and
management is substantial and vital.
Studies in conditional
stability constants and confirmation of complex formation of cu (II), Ni (II)
and Co (II) complexes with captopril spectrophotometrically
A.R. raut, Quazi S.N. Irfan, A. D. Khambre, S.A. Ikhe and
M.L. Narwade
Abstract: Spectrophotometric Investigation of Cu (II), Ni (II), and Co
(II) complexes with captopril showed 1:1 and 1:2 complex formation between the
pH range of 3.0 to 6.0. The formation of complexes has been studied by Isobestic
point method and Job’s Variation method at 0.1 M ionic strength and 30°C ± 1°C
spectrophotometrically. The conditional stability constants are determined for
1:1 complexes at about pH 3.0.
Synthesis and
Characterization of a mesoporous titano aluminophosphate molecular sieve
N. Venkatathri
Abstract: A novel titanium containing mesoprous aluminophosphate
molecular sieve was synthesized hydrothermally. As synthesized TAPO samples were
characterized using xrd, sem, tem, tg/dta, n2 adsorption, ft-ir, esr, uv-Vis,
Xps, and 27Al, 31P Mas nmr. Xrd, tem and N2 adsorption studies shows that the
synthesized sample is mesoporous and UV-Vis and Xps studies indicate titanium
incorporated as tetrahedral co-ordination in Alpo lattice. Presence of excess
weight loss (67.8%) also indicate that the sample is mesoporous. Aluminium and
phosphorous were in tetrahedral co-ordination, however most of the aluminium
were present as octahedral co-ordination.
Key words : mesoporous; titanoaluminophosphate; Xrd; sem; tem; Tg/ dta;
ft- ir; esr; UV- Vis; Xps; mas nmr.
Synthesis, Characterization
and Biological Screening of cobalt containing terpolymer films
Nisha Rathor* and G.C. Saxena
Abstract: Cobalt containing terpolymer films have been synthesized by
polymerisatian of styrene, methyl methacrylate and acrylonitrile containing
different concentrations of poly cobalt acrylate. Terploymer of styrene, methyl
methacrylate and acrylonitrile in different weight ratios have been prepared by
using dichloro bis (p-methoxy phenyl carbonyl azomethine sulphanilamide) iron
(III) chloride as an initiator. Poly cobalt acrylate has been prepared by using
a, a'-azobisisobutyronitrile as an initiator. Films were grown by dissolving
terpolymer and poly cobalt acrylate in dioxane using different concentrations.
The synthesized terpolymer films have been characterised by FTIR, NMR and
elemental analysis. Other properties such as electrical conductance, chemical
resistance, biological screening, softening range, permeabilitity and adsorption
have been studied.
Evaluation of some plant
powders as toxicants and antifeedants in the control of maize damage by the
maize weevil, Sitophilus zeamais motschulsky in storage
O. T. OMOTOSO
Abstract: Laboratory studies were conducted to evaluate the efficacy of
the powders made from 8 plant species (11 plant parts) as toxicants and
antifeedants against Sitophilus zeamais. The plants used include Aloe vera,
Eucalyptus camaldulensis, Lonchocarpus cyanescens, Lonchocarpus sericeus,
Erythrophleum guineense, Aframomum melegueta, Azadirachta indica and Ricinus
communis. The plants parts were processed into powders and dry-mixed with maize
grains (cultivar TZL COMP 4CI) at rates of lg, 2g, 5g and 10g plant powders per
50g of maize grain.
Results showed that plant powders of A. indica (leaves and seeds), R. communis
(leaves and seeds), E. comaldulensis (leaves), L. sericeus (fruits), A. indica
(stem bark) and A. vera (leaves) were toxic to S. zeamais and restricted
infestation and spoilage. Among the best antifeedants, which restricted weight
losses (within a period of 30 days) at 10g treatments are A. indica seeds and
leaves, R. communis seeds and leaves, E. camaldulensis, L. sericeus, E.
guineense and A. indica stem bark. The weight loss recorded in maize treated
with A. melegueta, L. cyanescens, A. vera, A. indica stem bark and lower dosages
of E. guineense compare favourably (70 - 80%) with the loss recorded in the
control (80%). Treatment of the grains with these plant powders had no
significant effect on the acceptability and germinative ability of the grains.
Key words : Sitophilus zeamais, toxicity, antifeedant, mortality and Aloe
vera.
Studies on Mixed Ligand
Complexes of Cd ion with Methyl Imino Diacetic Acid (MIDA) and Some Bicarboxylic
Acids at DME
MAHENDRA KUMAR VERMA and C.P. SINGH CHANDEL*
Abstract: Studies on mixed ligand complexes of Cd with Methyl Imino
Diacetic Acid (MIDA) and some bicarboxylic acids (Tartarate, Maleate, Malonate,
Malate, Succinate and Oxalate) have been carried out electrochemically at DME.
The formation of MXY, MXY2, and MX2Y complexes have been identified and
stability constants of such complex has been evaluated by the treatment of
Schaap and McMasters with the help of these data, statistical and
electrochemical effects have been considered.
Key words : MIDA, Bicarboxylic Acids and Electrochemically.
The Effect of breast milk on
the tensile strength of nursing mothers' wearing apparel: Polyester and
cellulosic Yarns as a case study
Adetuyi, A.O
Abstract: The tensile strength of nursing mothers’ wearing apparel,
particularly cellulosic and polyester materials are reduced by 35% and 20%
respectively in overstay breast milk. The internal structure and chemical
composition of the fabrics are supposedly distorted by the heterogeneous
composition of the milk.
Key word: Breast milk, Fabric, Tensile strength.
Strong Shock waves in
logarithimically varying density region-II
R.P. Yadav and Amir Singh
Abstract: Effect of overtaking disturbances on the Plane, Cylindrical and
Spherical strong shocks propagating in uniform medium has been investigated by
the method proposed in earlier paper [(Mod. Meas. Cont. B, 46 (4), 1 (1992)].
This paper is modification of our previous work (2004), in which both shocks and
overtaking disturbances are supposed to be propagate in logarithimically varying
density region. In the present paper it is assumed that shocks propagate in
uniform region, while overtaking disturbances in non-uniform region. The
non-uniformity is arises due to shock propagation. It is further assumed that
the density of non-uniform region is given by ro= r' log r, where r' is the
density at axis of symmetry / centre, analytical relation for shock velocity and
shock strength modified by overtaking wave has been deived. The results obtained
here are compared with earlier work.
The Relationship between
Lead Concentration in Indoor and Outdoor Dust in Rural, Suburban, Urban and
Industrial Environments from Riyadh City, Saudi Arabia
M. Bounessah* and S.M. Al-Shayeb
Abstract: The distribution of lead concentrations in indoor and outdoor
dust particles (<63 µm) in Riyadh City, Saudi Arabia has been investigated in
relation to four different environments (industrial, urban, suburban and rural).
The results showed the industrial area has the highest levels of lead followed
by the urban areas. Mean concentrations of outdoor dusts in industrial, urban,
suburban, and rural areas were 739, 56, 31 and 13 µg g-1 respectively; mean
concentrations of indoor dusts were 335,128, 67 and 29 µg g-1 respectively. The
main source of this metal, in both outdoor and indoor was from human activity.
The relationship between outdoor and indoor dusts was also investigated; Indoor
to outdoor ratio was found to be high in urban, suburban, and rural areas. In
view of the high levels in some locations, these can be considered a significant
hand-to-mouth source of exposure, especially for children.
Preparation and properties
of a novel mesoporous aluminosilicate molecular sieve, SBA-17
N. Venkatathri
Abstract: Small pore (~1.85nm) cage like mesoporous aluminosilicate
materials SBA-17 have been synthesized by using hexamethyleneimine template. The
material is an aluminosilicate synthesized in non-aqueous media. Their ordered
mesostructures were characterized by X-ray diffraction pattern (XRD), Scanning
electron microscopy (SEM), Transition electron microscopy (TEM), Therrmal
analysis (TG/DTA), and X-ray photo electron microscopy (XPS). Nuclear magnetic
resonance (NMR) and infrared spectroscopy (IR) results show that SBA-17 products
have large number of silanol groups.
Key word: Alumino silicate, Mesoporous, SBA-17, Physicochemical,
Characterization.
Theoretical evaluation of
viscosity in quaternary systems
Shipra Baluja, Nikunj S. Kachhadia, Asif Solanki and
Pranav Inamdar
Abstract: Viscosities of three quaternary liquid mixtures:
Chloroform-1,4-dioxane- toluene - cyclohexanone, Chloroform - 1,4-dioxane
-toluene - hexane, Chloroform - 1,4-dioxane - toluene - heptane in different
compositions have been measured and compared with theoretical values calculated
by using various empirical retations. Fairly good agreement between experimental
and theoretical values, calculated by different theories is observed in all the
tlree systems. Further, an attempt has been made to study the intermolecular
interactions in the three systems at 298 K, in terms of excess free energy of
mixing, strength of interaction parameter and interaction energy. It is observed
that interactions can be estimated in quaternary systems both qualitatively and
quantitatively.
Key words: Quaternary liquid mixtures/ viscosity/ intermolecular
interaction
Effects of overtaking
disturbances on the motion of cylindrical hydromagnetic shock waves in a
self-gravitating gas
B. KISHOR and S. KUMAR*
Abstract: The effects of overtaking disturbances have been included in
CCW1-3 prediction for the motion of diverging cylindrical hydromagnetic shock
waves through in an ideal gas under its own gravitation in presence of a
magnetic field having only constant axial (Hzo) and variable azimuthal (Hqo =ÖrHzo)
components. Assuming an initial density distribution r°= r' rr-W, where r' is
the density at the axis of symmetry and w is constant, the analytical
expressions for flow variables representing for both the situtions viz; weak and
strong cases of shock have been obtained. Their numerical estimates only at
permissible shock front locations have been computed and compared with earlier
results, describing free propagation. F. P.
Key Words : Shock waves, CCW Prediction, Effects of Overtaking
Disturbance, Correction percentages, (Hqo = Ör Hzo and r°= r' rr-W).
Preparation and
Characterization of some 1:1 adducts of Nickel (II) and Copper (II) o-hydroxydithiobenzoates
with substituted pyridines
Renu Sachar and Rashi Gupta
Abstract: A series of 1:1 addition complexes of o-hydroxydithiobenzoates
of Nickel (II) and Copper (II) with substituted pyridines such as 2, 4-,
2,5-,2,6- and 3,5- dimethylpyridines and 2,4,6-trimethylpyridine have been
prepared and characterized on the basis of analytical, molar conductance,
magnetic susceptibility measurements and spectral data. Nickel (II) adducts are
diamagnetic whereas Copper (II) adducts are paramagnetic. These adductsare
non-electrolytes and have square pyramidal environment.
Application of Guaran
imprignated silica gel tlc plates for resolution
S. Harsh* and P.N. Mathur
Abstract: The chiral discriminating properties of the legume seed (cyamopsis
tetragonalobus) polysaccharide, guaran, has been investigated by this
laboratory. Due to the presence of Cis-hydroxyl group in its molecule, guaran a
galacto-
mannon, forms tetracoordinated polymeric complexes resulting in cross-linking
and gelling. Resolution of Cu-complexes of amino acid can be reversibly
exchanged by galactomannon.
Key Words : Chiral discrimination, Guaran