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International Journal of Research and Reviews in Applied Sciences
ISSN: 2076-734X, EISSN: 2076-7366
Volume 14, Issue 1 (January, 2013)
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1. |
DATA ANALYSIS IN SUPPORT OF RADIATION PORTAL MONITORING |
by Tom Burr & Michael S. Hamada
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Abstract |
Passive gamma and neutron detectors screen
for illicit special nuclear material in vehicles crossing borders between countries.
This paper illustrates how statistical analysis of archived detector data can help
to evaluate special nuclear material detection probabilities and to investigate
several issues, including drifting background, background gamma suppression, nuisance
alarms arising from either naturally occurring radioactive material (NORM) or cosmic
ray bursts, and detector quality control.
Statistical techniques described include data smoothing, cosmic ray filtering of
neutron alarms, quantile estimation, and pattern recognition. New data analysis
of gamma energy spectra suggests that NORM recognition using deployed detectors
is difficult.
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2. |
GLUCURONIC ACID CONTAINING FERMENTED FUNCTIONAL BEVERAGES PRODUCED BY NATURAL YEASTS AND BACTERIA ASSOCIATIONS |
by Ilmara Vina, Pavels Semjonovs, Raimonds Linde & Arturs Patetko
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Abstract |
Synthesis of glucuronic acid, well-known as significant detoxicant, by natural Kombucha associations has been studied. The aim of this review is to overview the possibility to obtain Kombucha-like healthy beverages with a high content of glucuronic acid by the integration of several optimal conditions of fermentation system. The article demonstrates the obtaining of fermented beverages with a high content of glucuronic acid by applying natural associations of bacteria and yeasts, known as Kombucha, for the proof of the concept that synthesis of glucuronic acid is a characteristic property of Kombucha symbiosis. A direct relationship between the Kombucha fermentation process conditions, composition of the fermentation medium and the yield of glucuronic acid has been proved. The initial hypothesis of this review about glucuronic acid synthesis as a property of Kombucha, regardless of the origin and composition of the symbiosis used, has been confirmed. The experimental studies overviewed have confirmed the assumption that it is possible to increase the yield of glucuronic acid by changing fermentation medium and independent variable conditions of the process. |
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3. |
A THEORETICAL MODEL OF STABLE DARK ENERGY STARS |
by Manuel Malaver & María Esculpi |
Abstract |
In this paper we present a relativistic static and spherically symmetric dark energy
stellar configuration consisting of an interior anisotropic fluid governed by a
dark energy like equation of state matched to an exterior Schwarzschild vacuum solution
through a thin shell. A mass function depending on an adjustable parameter is imposed
to solve the Einstein field equations. Physical properties and stability of the
obtained new family of solutions is further explored.
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4. |
ESTIMATIONS ON VaR FOR OPTIONS: EXTENSION OF DELTA-GAMMA METHOD |
by Shu-Ing Liu |
Abstract |
This paper provides
an analytical formula for estimating the Value-at-Risk (VaR) of options. Based on
the Black-Scholes option pricing formula, the increment of the option price is explicitly
expressed in an infinite series by the Taylor expansion technique, and convenient
full evaluations on VaR for options are obtained. Following this, the accuracy of
the popularly used delta-gamma approximation is analytically and numerically examined
by some examples. The results reveal that the delta-gamma method may underestimate
or overestimate depending upon the ratio of the current asset and the strike price.
Besides, in out-of-the-money cases, the examined results indicate by way of the
delta-gamma method that while VaR misestimating is more significant for put options,
they are less significant for call options.
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5. |
SPECTRAL METHOD AND ITS APPLICATION TO A CAUCHY PROBLEM OF THE LAPLACE EQUATION |
by Ai-lin Qian |
Abstract |
The Cauchy problem of Laplace equation is
severely ill-posed problem. In this paper,
A Cauchy problem for the Laplace equation in a rectangle is considered.
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6. |
DES BLOCK OF 96 BITS: AN APPLICATION TO IMAGE ENCRYPTION |
by Flores-Carapia R., Silva-García V.M. & Rentería-Márquez C. |
Abstract |
According to international standard norms, FIPS PUB 143, the Data Encryption Standard
Cryptosystem (DES) uses a 64-bit input block. However, it is not difficult to extend
the block to 96-bit encryption, which will be called DES-96. The cycle of encryption
is achieved in similar times to DES. Developing DES-96, intends applyingFactorial
Theorem, which in this case tells us that any permutation on an array of 96 positions
can be constructed from 3 permutations over arrays of 64 positions. According to
theJV Theorem, given a number
with 0 ≤
≤ 64! - 1 ≈ 1089, you can
associate a permutation of 64 positions in 63 steps. This allows applying a variable
permutation on an array of 96 positions at the start of the third round, using 3
numbers
with 0 ≤
≤ 1089 and for
= 1, 2, 3, instead of using numbers
0 ≤
≤ 96 ! - 1 ≈ 10150 for permutations
on arrays of 96 positions directly. The DES-96 algorithm is illustrated with an
application in the encryption of colour images, which is carried out without loss
of information, i.e. JPG formats are not applied. The latter may have problems encrypting
the images with a permutation and fixed key, revealing contours and giving information.
Using an input variable permutation for the third round, results in approximately
uniform distribution tones of red, green and blue colours. It is used as a measure
of randomness for the value of Chi-square χ2.
It also shows that the DES-96 algorithm conforms to the property of being a one
to one function.
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7. |
THE FEATURES OF PROTEIN BINDING BY RUTHENIUM COMPLEXES: DOCKING, FORCE FIELD AND QM/MM STUDIES |
by Pankaj Hazarika, B. Bezbaruah, J. Deka, R.P. Deka, O.K. Medhi & C. Medhi |
Abstract |
The ruthenium
complexes are known for their anticancer property. Some ruthenium complexes can
bind with protein that may be related to the anticancer activity. The protein binding
features of few ruthenium complexes have been analyzed to understand the amino acid
selectivity within protein sequences. The docking, Molecular mechanics and QM/MM
methods are used to predict the binding sites of these ruthenium complexes. The
fluorinated ruthenium pyridocarbazole is a protein binding complex. The cis-chlorodimethylsulphoxide-S-bis(1,10-phenanthroline)
ruthenium (II) chloride [RuN(B)], trichlorodimethylsulphoxide-S-(1,10-phenanthroline)
ruthenium (III) [RuN(C)] and cis-dichlorotetrakis(dimethylsulphoxide) ruthenium
(II) [RuN(D)] complexes can bind perfectly within fluorinated ruthenium pyridocarbazole
is binding region. The complexes are found selective of certain amino acids, and
the formation hydrogen bonds within the complex bonded region are found.
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8. |
RENORMALIZED SOLUTIONS FOR NONLINEAR PARABOLIC SYSTEMS WITH THREE UNBOUNDED NONLINEARITIES IN WEIGHTED SOBOLEV SPACES |
by Y. Akdim, J. Bennouna, A. Bouajaja & M. Mekkour |
Abstract |
We prove an existence result for a class of nonlinear parabolic systems with three
unbounded nonlinearities. Without assumptions on the growth of some nonlinear terms,
we prove the existence of a renormalized solution.
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9. |
LOOKING BEYOND THE GAP OF AFRICAN AMERICAN STUDENTS’ PERFORMANCE: STATES TEST AND TEXT BOOK DRIVEN CURRICULUM UNSKILL MATHEMATICS TEACHERS |
by Nosisi N. Feza |
Abstract |
African American students’ mathematics poor
performance has historical origins of oppression that has been strengthened by lack
of implementation of suggested reforms. Interventions and reforms have suggested
relevant pedagogy for minority students. However, classroom practices continue to
alienate these students. This paper elicits the powerful factors that impede progress
in implementing cultural relevant pedagogy for African American students and other
students in general. Observations, informal interviews and cultural artifacts were
employed data sources to elicit factors that inhibit mathematics learning these
students were exposed to. The classroom practice of two fifth grade teachers indicate
that State tests and textbook based instruction take precedence in teaching mathematics
regardless of teacher awareness of the African American students’ needs. Therefore
this paper argues that State test and textbook based instruction deprofessionalise
teachers in mathematics classroom and hinder learning opportunities.
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10. |
THE IMPACT OF ELECTRONIC PAYMENT ON SAUDI BANKS PROFITABILITY: CASE STUDY OF SADAD PAYMENT SYSTEM |
by Minwer M. AL-Adwan, Mahmoud AL-Zyood & Mohammad Ishfaq |
Abstract |
Electronic payment system has made significant
impact on banks Profitability in general and in Saudi Arabia in particular. Our
study in this respect reveals that banks profitability predominantly capitalizes
on e-payment pillars such comprisingConvenience, Choices Verities, Cost Reduction,
Speedy Payments, Security, and Accessibility. This paper presents a case study of
Saudi electronic payment system (SADAD)to analyze its impact on the Saudi banks'
profitability. SADAD was initiated by the Saudi Arabian Monetary Agency (SAMA) to
be the national Electronic Bill Presentment and Payment (EBPP) service provider
for the Kingdom of Saudi Arabia (KSA). The main objective of SADAD is to facilitate
and modernize bills payment transactions for end consumers through all channels
of the Kingdom’s Banks. The electronic payment (SADAD) system’s impact is studied
with reference to banks profitability by mainly focusing on Return on Assets (ROA)
and Return on Equity (ROE). This study presents
varied opinion on e-banking and profitability which is apparently divided into three
groups i.e. one group argues there is no link between technology and profitability,
the second group argues the opposite while third group agrees that there is link
between profitability and technology with reference to network impact. We in this
study have followed this line of arguments and present an empirical study of Saudi
e-payment system (SADAD); firstly by developing pillars of electronic payment system
based on literature survey, secondly examining the impact of electronic payment
on the banks profitability based on empirical data collected in Saudi Arabia and
finally develops relationship between e-payment pillars and pillars of bank profitability.This
study is built on hypothesis, tests and analyses of the results to reach at conclusions.
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11. |
TREND OF POVERTY INTENSITYIN IRAN
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by F. Bagheri & M.S. Avazalipour |
Abstract |
Income inequality among poor people, average income of poor people, poverty line,
total number of the poor and total population
are the factors that affect poverty intensity and any difference in each
of them causes difference in the size of poverty intensity. Among them,
SST Index
is an appropriate instrument to measure the poverty intensity. This index can measure
the poverty intensity considering number of the poor and depth of poverty and inequality
among them.In this paper, first the absolute poverty line based on 2300 calories
for urban and rural areas, then the SST Index and its components -the poverty rate,
average poverty gap ratio of the poor, and a measure that is related to the Gini
index of poverty gap ratios- are calculated for the period of 1991-2010.
Moreover for calculation of these indexes the data from the Statistical Center of
Iran’s Household Expenditure and Income Survey were used
The
poverty intensity
in
2010 compared with that in 1991reduced from 13.1 to 7.3 percent
in urban areas. In rural areas, the poverty intensity reduced from 28.1 to 7.5 percent.
Intensity of poverty in rural and urban
areas in 20 years (1991-2010) has found a marked reduction and a major cause of
this decrease is due to reduction of poverty rate. In addition, the decrease of poverty intensity
over the 20 years has been higher in rural areas than in urban areas.
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12. |
ON THE RATE OF RETURNS, THE RISK AND THE DISTRBUTION OF F0REX MARKET INVESTMENT |
by Bright O. Osu & Vine Madukpe |
Abstract |
The foreign exchange
market (currency market, FX or forex) is a form of exchange for the global
decentralized trading of international currencies. The foreign exchange market determines
the relative values of different currencies. One of the characteristics that make
the FX unique is its huge volume representing the largest asset class
in the world leading to high liquidity. This liquidity is independent of regional
trading sessions. Fixed income traders are active in the markets, buying and selling
securities to influence prices, and thereby interest rates. This means that the
trader is either paying out or receiving interest on their position, depending on
whether the interest rate differential is for or against them. The interest rate
differential is what we refer to as rate of returns.
In this paper we consider the rate of return, defined here as the net accumulation
of the forex broker (an investor) on investing on this market and we suggest a formula
for determining this rate of return. Risk is always involved financial markets,
so we also consider risk involved in this market and develop a risk measure and
an index to determine the risk type when occurred. Furthermore we show that the
distribution of this return rate follows Logistic distribution.
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13. |
EFFECT OF GLUCOSE AS STABILIZER OF ZNO AND CDO NANOPARTICLES ON THE MORPHOLOGY AND OPTICAL PROPERTIES |
by Nobathembu Faleni & Makwena Justice Moloto |
Abstract |
Most organic
stabilizers for semiconductor nanoparticles used such as hexadecylamine, troctylphosphine
oxide, alkylpyridine, organic thiols, oleic acids etc. are water insoluble and not
biocompatible. Zinc and cadmium oxide nanoparticles give significant stability under
the influence of any type of stabilizer. Glucose is a sugar molecule with both water
solubility and biocompatibility and is used as capping for the CdO and ZnO nanoparticles.
The synthesis of the nanoparticles was carried out in an alcoholic medium The amount
of glucose is varied from 0.25 g to 1.00 g to study its influence on the morphologies
and optical properties of the zinc and cadmium oxide nanoparticles. The morphologies
of the nanoparticles were characterized by TEM images and the optical properties
were analysed using UV-Visible spectrophotometry and photoluminescence, which shows
the general blue shift in their absorption features and red shifts of the emission
maxima. The use of glucose as stabilizer for nanoparticles provide route for direct
synthesis of semiconductor nanoparticles especially at lower glucose amount to avoid
its crystallinity obscuring the particles crystallinity.
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14. |
DEVE LOPING A SPEECH PRODUCTION MATHEMATICAL MODEL IN TERMS OF THE Z-TRANSFORM FOR SPEECH RECOGNITON IMPLEMENTATION IN THE COMPUTER |
by Majed Ismail Hussein |
Abstract |
The
use of speech recognition systems allow
messages to interact with the computer in natural it is possible to solve Voice
control of the computing process(such as speech input commands WINDOWS), Voice control
of various technical systems, Automatic entry of textual information in the personal
computer to fill in the various documents databases. The use of speech recognition
providers Increasing management efficiency through the use of verbal interaction
channel (average specialist computer systems from the keyboard can enter only 10-20
words / min ,and the voice can
convey 100-200 words /min) A mathematical
model of speech production can be described in terms of Z-transform in order to
implement it on a computer in the form of the relationship.
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15. |
KETOPROFEN ENCAPSULATION OPTIMIZATION WITH CHITOSAN-ALGINATE CROSS-LINKED WITH SODIUM TRIPOLYPHOSPHATE AND ITS REALEASE MECHANISM DETERMINATION USING IN VITRO
DISSOLUTION |
by Purwantiningsih Sugita, Laksmi Ambarsari, Yeni Arum Sari & Yogi Nugraha |
Abstract |
Encapsulation optimization
of ketoprofen with chitosan-alginate matrix cross-linked with sodium tripolyphosphate
(STTP) and determination of its release mechanism has been carried out in succession
by sonication-centrifugation method and
in vitro dissolution test, respectively. The matrix is made by varying the concentration
of chitosan, alginate and STTP using Box-Benhken design method. Ketoprofen mixing
with chitosan matrix sonication performed at 20kHz frequency of ultrasonic waves
for 30 mintues and centrifuged at 15 000 rpm speed (27200 x g) for 20 minutes. Determination
of coating efficiency, the amount of chitosan nanoparticles and the kinetics associated
with release mechanism performed using spectrograph-photometer UV/VIS, SEM and in
vitro dissolution test, respectively. The result of the matrix constituent optimization
was two formula being elected, F and M formula with composition of chitosan, alginate
and STPP, respectively are 1.75% (w/v), 0.75% (w/v), 5.0% (w/v) and 1:50% (w/v),
0.625% (w/v), 4.0% (w/v). The efficiency of coating for both formula are 80.43%
and 78.84% respectively with average particle size ranged from 200-8000 nm, and
the nanoparticle percentage are 23.90% and 26.81%, respectively. Encapsulation of
both formulas shows that the drugs release is controlled in both acidic and alkaline
medium. Ketoprofen release kinethic from nanoparticle matrix for F and M formula
in acidic medium followed the model of the first-order kinetics and Hixson-Crowell
respectively, while in alkaline medium it followed Hixson-Crowell and order 0 model
respectively.
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16. |
BIOREMEDIATION OF EFFLUENT WASTEWATER TREATMENT PLANT BOJONGSOANG BANDUNG INDONESIA USING CONSORSIUM AQUATIC PLANTS AND ANIMALS |
by Wibowo Mangunwardoyo, Tony Sudjarwo & Mufti Petala Patria |
Abstract |
Volume
of domestic or household waste increased by 5 millions meter cubic per year, with
an increase in the average content of up to 50%. Components in the domestic waste
water can lead to imbalances disrupt aquatic ecosystems and human health, such as
the presence of Escherichia coli, and
the possible presence of hazardous substances such as elemental N, P, As, Cr, and
Se which can lead to poisoning of fish, birds and mammals. Bioremediation is the
application of biotechnology domestic wastewater utilizing living things include
plants and animals as agents of degrading pollutants. This research uses a consortium
of Eichhornia crassipes (F1),
Salvinia molesta (F2), Ceratophyllum demersum
(F3), as well as aquatic animals Anodonta woodiana
(Z1) and Limnodrilus hoffmeisteri (Z2)
because it has a high potential to degrade or absorbing compounds in domestic wastewater.
Experiments using Randomized Complete Design (RCD), 12 treatments and 3 replicates.
Observed levels of efficiency (Ef) and the rate of degradation (Ld) or rate of gradation
(Lg). Observations of turbidity, color and froth domestic wastewater done for 14
days. Testing or measurement of physical and chemical properties at day-0, the 1st,
3rd and 5th. The results revealed a consortium F1F2F3Z1Z2
on turbidity Ef 86%─Ld 14 mg/L/day,
BOD Ef 70%─Ld 19
mg/L/day, COD Ef 67%─Ld 31
mg/L/day and clear the fastest on day 4; consortium F2F3Z2 on ammonia Ef 95%─Ld 0.62
mg/L/day, nitric Ef 91%─Ld 0.11
mg/L/day and the lowest gradation TDSEf 0%─Ld 0 mg/L/day, F1F2F3Z1 consortium gradation
lowest TSS Ef 50%─Lg 1 mg/L/day,
and a consortium F1F3Z1 Ef 77%─Ld 1.30
mg/L/day in nitrate.
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17. |
ON THE LOCAL PROPERTY OF GENERAL INDEXED SUMMABILITY OF A FACTORED FOURIER SERIES |
by Mahendra Misra, B.P.Padhy, Dattaram Bisoyi & U.K.Misra |
Abstract |
In this paper we have established a theorem on the local
property of
summability of a factored
Fourier series.
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18. |
FIXED POINT THEOREM IN FUZZY METRIC SPACE WITH THE PROPERTY (E.A.) |
by Arihant Jain, Nirmala Gupta & V.K.Gupta |
Abstract |
In this paper, we prove a common fixed point theorem for semi-compatible and weakly
compatible mappings in Fuzzy metric space using the property (E.A.) and implicit
relation. Our result generalizes the result of Singh and Jain [14].
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19. |
DETERMINATION OF APPARENT APATITE GRADE BY DIGITAL IMAGE ANALYSIS |
by André Carlos Silva, Elenice Maria Schons Silva, Luciano Nunes Capponi & Danielle Flavia de Gouvea |
Abstract |
According to the Brazilian Department of Mineral Production the phosphate rock world
production in 2010 was something about 176 millions of tons and the national production
were 6.192 millions of tons. The Brazilian phosphate rock production is concentrate
in alkaline-carbonate complexes localized in Tapira, Araxá, Catalão and Cajati counties.
It is well known that the greater comprehension of the mineral intrinsic characteristics
lead to a good understand in processing of this mineral. This paper presents a mineralogical
characterization and apatite grade estimation using digital image analysis. Different
samples of phosphate rock from the primary grinding homogenization stock pile were
used. The samples were donated by Vale Fertilizantes Company (which was responsible
for 72% of the Brazilian production of phosphate rock in 2010), situated in Catalão-GO.
The samples was dried, granulometric classified using a Tyler screen series and
photographed using a digital camera coupled in a stereoscopic microscope (with increase
of 10X/20). A software using Borland Delphi 7 was developed to perform the analysis
of the digital images acquired using a colorimetric differentiation. The mineralogical
grades of apatite determined through the software were compared to the grade determined
through chemical analysis of twin samples to the characterized. The found results
indicated that the digital image analysis can be used as a complementary technique
to the actually mineral characterization methods, such as the chemical methods,
once this analysis is faster and cheaper than the others methods and it is a non-destructible
method.
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20. |
STATIC AND DYNAMIC BEHAVIOR OF TAPERED BEAMS ON TWO-PARAMETER FOUNDATION |
by Mohamed Taha Hassan & Mohamed Nassar |
Abstract |
The static and dynamic behaviors of tapered beams resting on two-parameter foundations
are studied using the differential quadrature method (DQM). The governing differential
equations are derived and discretized; then the appropriate boundary conditions
are discretized and substituted into the governing differential equations yielding
a system of homogeneous algebraic equations. The equivalent two-parameter eigenvalue
problem is obtained and solved for critical loads in the static case (w=0) and natural frequencies
in the dynamic case with a prescribed value of the axial load (Po<Pcr). The obtained solutions
are found compatible with those obtained from other techniques. A parametric study
is performed to investigate the significance of different parameters.
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21. |
2-WEAK AMENABILITY OF THE SECOND DUAL OF A BANACH ALGEBRADR |
by A. Zivari-Kazempour & M. Fallah |
Abstract |
In this paper we show that the second adjoint of D
is also a derivation if we consider the fourth dual of A
as a Banach A'' bimodule with the natural module structures.
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22. |
ANALGESIAC, ANTI-INFLAMMATORY AND ANTIDIARRHOEAL EFFECTS OF DATURA STRAMONIUM HYDROALCOHOLIC LEAVES EXTRACT IN MICE |
by Duraid A. Abbas |
Abstract |
Three experiments
were performed, Exp-1 and Exp-2 were designed to study the antidiarrhoeal
effect and the effect on enteropooling induced by castor oil for two treated
groups (T1&T2) orally dosed with Datura stramonium leaves hydroethanolic
extract at 50 and 100mg/Kg BW. compared
with IP dosed atropine sulphate and control groups , each consist of 6 mice. Exp-1
results showed that both DS extract
doses caused a dose dependent antidiarrhoeal effect manifested
by significant decrease in charcoal intestinal travelling distance and percent
(ITP) which is similar to atropine sulphate (0.1mg/kgBW IP) for the high DS extract
dose. While Ex-2 results showed the superiority of DS extract via decreasing the
intestinal castor oil enteropooling effect than atropine sulphate (0.3mg/Kg BW)
possibily because the DS extract may have another active mechanism beside its antimuscarinic
effect due to its tropane alkaloids content . In Exp—3 same dosed DS
groups were used to study the analgesic
effect by using hot plate method and anti-inflammatory effect that measured by using
formalin test compared with Tramado
HCL at 40 mg/Kg IP and Diclofenac(
0.75mg/Kg BW IP )as reference drug. The results of hot plate indicate a dose dependent
effect for both DS doses resembling that of tramadol HCL in their antinoiciceptive
effect versus time indicating that
the extract have a central analgesic effect probably by narcotic and non narcotic
mechanism while the formalin results for both DS doses at the early and late phase
indicate clearly their analgesic and anti inflammatory effect due to its phytochemical
contents.
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23. |
CLASSIFICATION OF THE THEORIES OF ELASTIC MEDIA WITH MICRO STRUCTURE |
by Ayaz Ahmad |
Abstract |
In this paper we discuss that the couple – stress theories
can be considered as a long wave – length approximation of a more general non local
theory of elasticity closely connected
with the theory of crystal lattice . Theories of media with microstructure are considerably
more complicated than the classical theory oy elasticity, although we reduce to
this certain limits. Our application
is justifiable only when we describe qualitatively new effect s which are not derivable
from the local theory.
Here we give a brief classification of the theories of
elastic media with micro structure .Explicit or implicit non locality is the charectrastic
feature of all classification of the theories of elastic media .We follows an explicit
consideration of microstructure effects with the simultaneous consideration of non
locality.
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24. |
PLACED NEAR THE FERMAT PRIMES AND THE FERMAT COMPOSITE NUMBERS |
by Ikorong Anouk Gilbert Nemron |
Abstract |
In this paper,
we show a Theorem which helps to characterize the Fermat primes and the Fermat composite
numbers.
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