Assessment
of water quality with regard to surfactants in pilgrim town - A case study
of Tirupati
A. Hemasundaram, K. Dhanalakshmi, B. Prasad and
N.V.S. Naidu*
Abstract:
Water pollution
by surfactants in detergent formulations has become an environmental
problem. Surfactant levels in waste water, surface water and subsurface
water in and the surrounding areas of Tirupati, a famous pilgrim town in
South India, has been studied. Results showed the presence of anionic
alkylbenzene sulfonate (LAS) surfactants in appreciable amount in
sub-surface water.
Key words : Water quality, surfactant,
linear alkyl benzene sulfonates (LAS). |
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Co-ordination
Polymers of 1,3 - Bis(8 -hydroxy - 5 - quinolinylmethyleneoxy) phenylene (BHQP)
K.D. PATEL* and S.C.
PANCHANI
Abstract: Co-ordination polymers of 1,3 - bis (8 -hydroxy - 5 -quinolinylmethyleneoxy)
Phenylene (BHQP) have been prepared with Zn+2, Cu+2 , Ni+2 , Co+2 and Mn+2
ions and characterized by elemental analysis, IR spectra, diffuse
reflectance spectral studies and magnetic measurements.Molecular weight (Mn)
of all polymers were determined by non-aqueous conductometric titration. The
metal content in all polymers are found to be consistent with 1:1 (Metal :
ligand) stoichiometry. |
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Upwelling
and Downwelling along the coastal waters of Kuala Terengganu
Maged Marghany
and Mohd. Lokman Hussien
Abstract:
This
study concerned with investigation of upwelling and downwelling phenomena
along the coastal water of Kuala Terengganu. The temperature and salinity
data have collected over one year (1992-1993. these data used to draw the
isothermal and isohaline contours. The profile of these contours used to
detect the upwelling and downwelling.
These study showed that the occurring of
upwelling during the south-west monsoon period from may to August. The
downwelling occurrences were in the north-east monsoon in October 1992,
February and march 1993.
It can be concluded that isothermal and
isohaline contours can be used to detect upwelling and downwelling movements
along the coastal waters of Kuala Terengganu. |
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QSAR Studies
on TIBO Derivatives: Estimation of Cytotoxic Concentration
Abhilash Thakur
Abstract:
QSAR studies on 19 TIBO derivatives as non-nucleotide reverse
transcriptase inhibitor of HIV-1 were performed using 2D-topological,
physicochemical and hydrophobic parameters. The obtained results demonstrated
in detailed in which topological, physicochemical and hydrophobic properties
play a significant role in biological activity. The indicator parameters used
shows the significance of different substitution on parent moiety. Three
different models are obtained by three type of descriptor with significant
results using multiple linear regression method.
Key Words :
QSAR, anti HIV-1, Topological indices, Physicochemical properties and logP. |
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Novel azo
disperse dyes containing tolacyl group and their dyeing on nylon and
polyester fabrics
Dipak G. Patel and J.
M. Pandya
Abstract: The aspect on novel azo disperse dyes containing tolacyl
moiety has been undertaken. The novel aromatic amine containing tolacyl
group has been prepared. This was diazotised and coupled with different
coupling components. All the resulting novel disperse dyes have been
characterized by elemental analysis IR, NMR visible spectroscopies. The
produced disperse dyes were employed for dyeing of commercial nylon and
Polyester fibers and the fastness properties of dyes were evaluated.
Key Words : Novel azo disperse dye
; IR, NMR Visible spectroscopies fastnees Properties |
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Co-ordination
Polymers of Bis [N,N’-(4-Carboxy-3-hydroxy-phenylene)] 1,2-Ethanediamine (CHPE)
P. R. SINHa and G. A.
Patel*
Abstract: Co-ordination polymers of bis[N,N’-(4-carboxy-3-hydroxyphenylene)]1,2-Ethane
diamine (CHPE) have been prepared with the Zn+2, Cu+2, Ni+2 Co+2 and Mn+2
ions and charaterized by elemental analysis, IR spectral and diffuse
reflectance spectral studies and magnetic moment measurements. Molecular
weight (Mn) of all polymers were determined by non-aqueous conductometric
titration. The metal content in all polymers are found to be consistent with
1:1 (Metal : ligand) stoichiometry. The thermal behaviour of each of the
co-ordination polymer has been studied by TGA in air upto 500 °C
Key Words : Co-ordination polymers,
IR spectral study, Number aver- age molecular weight, magnetic moment, TGA. |
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Kinetics of
oxidation of P-Methyl 3-Phenyl acrylic acid
by acid dichromate
M. K. Shah1
and S. B. Mehta*
Abstract: Kinetics of oxidation of
p-methyl 3-phenyl acrylic acid by acid dichromate ions are studied. The
order of reaction with respect to chromium (VI) p-methyl 3-phenyl acrylic
acid and the hydrogen ions is one each. The rate decreases in the presence
of manganous ions. Oxidation products of the p-methyl 3-phenyl acrylic
acid (i) when the p-methyl 3-phenyl acrylic is in excess are p-methyl
benzaldehyde and glyoxalic acid and (ii) when acid dichromate is in excess
the p-methyl benzoic acid. |
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The Southern
oscillation impact on wave climate in
south china sea
*Maged Marghany, **Zelina
Ibrahim and *Mohd. Lokman Hussien
Abstract:
The Southern Oscillation phenomenon effects rainfall and pressure patterns
in the South Asia region but has little influence over the South China sea. A
time series analyses showed that the strongest peaks of SOI coincided with the
heights peaks of wave climate. This is clearly evident during the north-east
monsoon period in 196l,1965,1969, 1982 and 1983 respectively. In contrast, the
scatter plots showed a non effect of the SOI on wave height and wave
directions was manimal, while the strongest effects of the SOI on wave
directions occurred during north-east monsoon periods from 1982 to 1986, as
the waves reversed their directions from a north-east to a south-west
direction. |
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Effects of
overtaking disturbances on the motion of plane and cylindrical shock waves
in a magnetogasdynamics
S. KUMARA and S. C.
YADAV
Abstract: The effects of overtaking disturbances behind the flow on
the motion of diverging plane and cylindrical shock waves through an ideal
gas in presence of a magnetic field having all the three components of the
form viz.,  =
constant,  = r
 ,  =
hr , have been
included in CCW approach. Assuming an initial density distribution r0.=r'rw,
where w is a constant and r' is the density at the plane/axis of symmetry,
the analytical expressions for flow variables representing both the
situations viz., weak and strong cases of shock, have been derived.
Their numerical estimates, only at permissible shock front locations, have
been computed and compared with results describing Free Propagation
through Figures (1-11). It is noted that inclusion of e.o.d. does not
change the dependence of flow variables qualitatively with parameters r,
b2 , w and x . However, the trends of variation with propagation distance
r, for the shock velocity and the particle velocity for plane shock, have
reversed in case of strong shock.
Key Words :
Effects of overtaking disturbances; r0.=r'rw, ( =
constant, = r
, =
hr) . |
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Reduction
of (S) - 2 - Amino - 5 - Ureido Pentanoic Acid (L - Citrulline) with UO2
and Some Bicarboxylic Acids at DME
MAHENDRA KUMAR VERMA
and C. P. SINGH CHANDEL*
Abstract:The reduction of UO2 with (S) - 2 - amino - 5 - ureido
pentanoic acid (L - citrulline) and some bicarboxylic acids (Malic,
Malonic, Tartaric and Oxalic) have been investigated polarographically at
DME in aqueous medium. The formation of MXY complexes has been identified
and stability constant of such complex has been evaluated by the extending
method of Schaap and MeMasters. The statistical and electrostatic effects
have been discussed by using its stability constant. The mixing constant
(KM) and the stabilization constant (Ks) are measured for these systems.
The positive values for these constants show that the ternary complexes
are more stable than the binary complexes.
Key words :
Reduction, Polarography, Bicarboxylic Acids, Schaap and McMasters,
Citrulline. |
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Equilibrium
Studies on Proton Solvation and Transfer Processes in Hydroxy-acids in
Urea-water Mixture A Computer augmented modelling study
Sangita Sharmaa¬,
Jayshree N. Patel, Neha Patel, J. J. Voraa and J. D. Joshib
Abstract: The stoichiometric protonation constants of hydroxy acids
like Salicylic acid, DL-Malic acid, DL-Lactic acid and DL-Mandelic acid
are determined on the basis of Bjerrum and Calvin method in urea-water
mixture. The effect of mixed equilibria have been determined at ionic
strength 0.2M (NaClO4) and temperature 30 ± 0.10C under nitrogen
atmosphere. A ptotentiometric method is used for calculation of the
constants. Fortran(IV) programs are used for calculation of protonation
constants and distribution of species like H2L, , , in equilibrium state.
The logarithm of the first protonation constants decrease and second
protonation constants are found to increase with increase in urea content.
This variation of constants are explained on the basis of solute-solvent
interaction, solvation and proton transfer processes and decrease in
hydrogen bonding tendency of ions in mixed equilibria. |
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A suggestion For a Giant Atom
Emad Eldieb
Abstract: A new concept, standing on a proposal,
we put in this work. This concept is enhanced by many of astronomic data.
We can imagine a sphere, originally present, formed of a number of proton
(p) and in-between them there is a number of neutrons (n). If the surfaces
of these particles are in contact to each other and (n) is much more than
(p) by the ratio ( ) then we can say that the radius of this sphere equals
(r0 n)
where ro is the radius of the rest mass of a neutron. Let us call such a
suggested sphere as "a giant proton". We must never forget that
we do not study how such a model constructed, only we study what about
this model if it was present. So this work searches in giving an atomic
explanation for the astronomic relations of the solar system. That is to
say; how to begin with atomic equations to build planets & stars, i.e.
to construct "giant atoms". We found that data like speeds of
rotation of the planets around sun, radius of rotation and the ratio
between masses of the nine planets to mass of the sun, all these data
could be explained on atomic equations if we speculated that the
properties of "g-photon"
(which is a sub atomic particle responsible for the electric field) is
shift to classic physics . |
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Physiological
and Biochemical changes in a pot experiment due to simulated acid rain
exposure on Archis hypogaea L. var M-13, A crop legume
DEEPIKA M. SOLOMON,
SHIKHA DEVPURA and T.I. KHAN
Abstract: In the post experiment conducted on Arachis hypogaea L.Var.
M-13, the legume failed to survive at and below pH 1.2. Root length showed
a reduction of 12.07 percent at pH 2.2 and shoot length of 29.4 percent at
pH 2.2 when finally harvested at post-flowering stage. The Dry weights
showed more severe effect at pre-following stage then at peak and post
flowering. The total chlorophyall (a+b) showed a reduction of 39.6
percent, at pH 2.2, at post flowering stage. The total Nitrogen content,
Protein and carbohydrates also showed adverse affects with the increase in
acidity of simulated acid rain.
Keywords :
Simulated acid rain, pH, legume, Biochemical parameters. |
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Nutritive
Value of Some New Varieties of Oil Seeds
MANJU GUPTA and S. K.
SHRIVASTAVA
Abstract: Nutritive value determination was carried out for some new
varieties of oil seeds (i.e., Arachis hypogaea- JGN-3, Brassica
compestris- VARUNA, Carthamus tinctorious-JSF-1, Glycine max-
JS-90-41, Helianthus annus-KBSH 1)
The feeding experiments were carried out on six weeks old eighteen white
rats (male Albino). The results were recorded in terms of diet intake,
weight gain, feed efficiency ratio and protein efficiency ratio.
Key words : Nutritive value, oil
seeds Arachis hypogaea- JGN-3, Brassica compestris-VARUNA, Carthamus
tinctorious-JSF-1, Glycine max- JS-90-41, Helianthus annus-KBSH-1,
male Albino Rats. |
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Quality
evaluation of ground water pollution through modelling techniques
K. Veera Bhadram
Abstract: Ground water is commonly understood to mean water
occupying all the voids within a geological stratum. Visakhapatnam city is
growing because of industrialization and urbanization. Due to industrial
belt in prominent pockets of the city the ground water quality is
depleted. Finally the effluents are reaching the ground water table. The
quality of the water can be modified, due to mixing of effluents, which
can modify the water quality in the surrounding areas. In this paper an
attempt has been done to identify the sources using modelling techniques. |
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Synthesis
and Antifungal Activity of some diphenylsulphide containing Bis-(2-arylimino-3-yl-thiazolidinones)
and Bis- (1-aryl-3-yl-2-thiohydantoins) derived from
4,4'-Dihydroxydiphenylsulphide
Rutesh. R. Shah, S.
P. Patel* and Y. M. Mehta
Abstract: Various Diphenylsulphide 4,4'-dioxymethylene bis-(2-arylimino-3-yl-thiazolidinones)
and bis- (1-aryl-3-yl-2-thiohydantoins) were prepared from
diphenylsulphide 4,4'-dioxymethylene bis-(4-aryl-3-thiocarbamides) and
screened for their antifungal activity against Penicillium expansum,
Nigrosporasp and Trichothesiumsp. |
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Studies on
structural effects of the solute &
solvent-sodium thiosulphate and ammonium thiosulphate in water
and water + alcohol system at different temperatures
U. N. Dasha,
G. S. Royb and S. Mohantyc
Abstract: Apparent and partial molar volume of the solutions of sodium
thiosulphate and ammonium thiosulphate in water and water + methanol,
water + ethanol and water + n - propanol (5%, 10% and 20% by weight
in each case) at 298.15K, 303.15K, 308.15K and 313.15K have been
calculated to study the various structural effects of the solute and
solvent in solution. |
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Effect of
internal standard on impurity responses of
valproic acid in sodium valproate
Dhanaji Patil and
Kiran Mangaonkar
Abstract: A simple, fast and accurate gas chromatographic method has
been developed for the determination impurities of valproic acid in sodium
valproate-ER Tablets. Also compared the effect of internal standard on
impurity responses. Sodium valproate is an anti-epileptic drug. The
maximum daily dose of sodium valproate is 2.0 - 2.5 gm per day. The method
was carried out on Shimadzu-CG-2010 coupled with AOC-5000 Auto sampler and
FFAP capillary column(30 meter, 0.32 mmID and 0.25 µ film thickness).
Key Words:
Gas-Chromatography, Sodium Valproate, Valproic acid, Butyric acid and
Biphenyl. |
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Effects of
modern agriculture on ground
water quality
P. K. Shrivastava1,
Priti Shrivastava2 and Praveen Singh3
Abstract: Ground - water is an important resource. It is used as a
source of drinking water by about more than 50% population of India.
Contamination of groundwater with substance that will make it unsuitable
for human use in drinking and food production thus is a matter for
concern. Groundwater always has contained a variety chemical substances
and current capability for detecting many substances in concentrations of
parts per billion has multiplied the number of substances that can be
identified. Agriculture is an important source of certain chemicals found
in ground water |
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