The Journal of American Science
(J Am Sci)
ISSN 1545-1003 (print); ISSN 2375-7264 (online),
doi prefix: 10.7537, Monthly
Volume 17, Issue 7, Cumulated
No. 161, July 25, 2021
Cover (jpg),
Cover (pdf),
Introduction,
Contents,
Call
for Papers,
am1707
The following manuscripts are presented as online first for
peer-review, starting from July 2, 2021.
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CONTENTS
No.
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Titles / Authors
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1
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An Economic Study of The Role
of Internal Trade in The Availability of Agricultural
Commodities and limiting the increase in their prices in Egypt
Elhusseini A. E.
Elnefili and Emad-Eldin A. Elsherbini
Senior Researcher,
Regional Studies Research Department, Agricultural Economic
Research Institute, Agricultural Research Center, Egypt.
E. Mail:
drnefili@yahoo.com
Abstract:
The idea of internal trade is based on movement of goods from
the areas of production to their markets or areas of
consumption, and its importance increases with the increase in
the concentration of production of these goods in areas without
others, and with the increase in the importance of the commodity
to human life. The main objectives of the study were to,
estimate the amount of internal trade of the most important
agricultural commodities, study the role of internal trade in
limiting the increase in the agricultural commodities prices,
identify the internal trade problems and propose mechanisms to
solve them. The study reached to that, the total quantity of
internal trade of onions, tomatoes, potatoes, rice, maize,
oranges and grapes amounted to about 2381, 6540, 4440, 4100,
16354, 1115 and 1466 thousand tons, respectively., while the
total quantity of internal trade of chicken meat, red meat,
dairy and fish is about 1777, 988, 5267 and 2515 thousand tons,
respectively, the analysis of the effect of the change in the
quantity supplied of the rice on both its farm price and its
consumer price showed that a 1% decrease in the quantity
supplied of rice leads to an increase in its farm price by 1.66%
and an increase in its consumer price by about 1.99%.
[Elhusseini A. E.
Elnefili and Emad-Eldin A. Elsherbini
An Economic Study of The Role of
Internal Trade in The Availability of Agricultural Commodities
and limiting the increase in their prices in Egypt
Am Sci 2021;17(7):1-14].
ISSN 15451003 (print); ISSN 23757264 (online).
http://www.jofamericanscience.org
1. doi:10.7537/marsjas170721.01.
Key words:
Internal trade, availability,
limiting, prices increase. |
Full Text |
1
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2
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Managerial Requirements of
Tehran Vision in 2025: How Can DSS Help?
Masood Saadatmand1,
Samira Fallah2, Farzad Torkamani2
1Department of Management, Tehran University, Tehran, Iran
2
Department of Industrial
Engineering, Amirkabir University of Technology, Tehran, Iran
m_saadatmand@ut.ac.ir
Abstract:
Along with
the vision of Iran in 2025, the Tehran’s vision with focusing on
8 main categories is also documented by Tehran City Council. The
categories emphasize on different aspects of Tehran, from its
economy, transportation and infrastructures to the environment,
security and social affairs. This diversity of issues made it
difficult for authorities to move towards Tehran’s vision by
effective planning. As a result, they need useful tools to
support them overcoming the complexity of decision making
process. Decision support systems are one of the effective tools
used worldwide to help deciding about urban infrastructures and
facilities, due to the fact that they improve
the quality of planning process
and made it possible to use advanced analysis and modeling
tools.
The aim of this paper is to
clarify how DSS could empower the authorities of Tehran to move
towards its vision by introducing the areas of Tehran Vision
which DSS could come in handy to facilitate the process of
decision making.
[Masood Saadatmand, Samira Fallah,
Farzad Torkamani.
Managerial Requirements of Tehran Vision in 2025: How Can DSS
Help? J Am Sci.
2021;17(7):15-23].
(ISSN: 1545-1003).
http://www.americanscience.org.
2.
doi:10.7537/marsjas170721.02.
Key words:
Decision Support Systems, Tehran vision 2025 (1404), Urban
Management, Decision Making, Iran vision 2025 (1404) |
Full Text |
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3
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Analysis of the Effect of
dimensions of Spiritual intelligence on organizational justice
in some industrial firms of Isfahan city
Mohsen allameh
Assistant Professor of
Management , Department of Management, Isfahan University, Iran
Amir Hossein Jafari
Najafabadi
MA student ,Department of
Management, Isfahan University, Iran
nasim amirosadat
MA student ,Department of
Management, Isfahan University, Iran
Nasim_amt@yahoo.com
Abstract:
The aim of the present research
is the study of the effect of Spiritual intelligence on
perceptions of organizational justice . This study is practical
and descriptive. For data analysis we are using Structural
equation m model (SEM) . Hypothesis testing shows there is a
positive relationship among Spiritual intelligence and
employee's perceptions of organizational justice. About the
effect of Spiritual intelligence dimensions on organizational
justice, results shows that all dimensions are positively
related to organizational justice and Conscious state expansion
factor has most important effect on organizational justice.
[Mohsen allameh.
Amir Hossein Jafari
Najafabadi. nasim amirosadat. Analysis of the Effect of
dimensions of Spiritual intelligence on organizational justice
in some industrial firms of Isfahan city.
Am Sci 2021;17(7):24-29]. ISSN 15451003 (print); ISSN 23757264
(online).
http://www.jofamericanscience.org
3.
doi:10.7537/marsjas170721.03.
Keywords: Analysis; Effect;
dimension; Spiritual; intelligence; organizational justice;
industrial; firm; Isfahan city |
Full Text |
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4
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Investigating the
Relationship between Psychological Capital and
Employee Engagement Case study: Isfahan
Regional Electronic Company
Sayyed Mohsen Allameh
1, Arash Shahin
2, Raziyeh Boroumand Jazi3
1.
Assistant Professor, Department of
management, University of Isfahan, Iran
2.
Associate Professor, Department of management, University of
Isfahan, Iran
3. Master of business
Administration, Department of management, university of Isfahan.
Iran
Boroomand.razi@yahoo.com
Abstract:
Psychological capital
as an individual’s positive psychological state of development
is an important factor in organizations. One of the vital
factors which it affects on is employee engagement.
Employee engagement is a positive
attitude held by the employee towards the organization and its
values. Improving employee engagement is new challenge for
managers. To fill this gap this research has investigated the
relationship between Psychological Capital
and Employee Engagement by Isfahan
Applied Regional Electronic Company through Structural
Equivalent Method. 108 employees were chosen as a sample and the
hypotheses were analyzed through AMOS by SEM method. This result
proved that there is strong relationship between Psychological
Capital and Employee Engagement (b=0.86, p<0.05).
[Sayyed Mohsen Allameh, Arash
Shahin, Raziyeh Boroumand Jazi.
Investigating the Relationship between Psychological Capital and
Employee EngagementCase study: Isfahan Regional Electronic
Company.
Am Sci 2021;17(7):30-38]. ISSN 15451003 (print); ISSN 23757264
(online).
http://www.jofamericanscience.org
4.
doi:10.7537/marsjas170721.04.
Keywords:
Psychological Capital, Employee
Engagement, Isfahan Applied Regional Electronic Company,
SEM |
Full Text |
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5
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Evaluation of Yield Responses
of five Water Yam (Dioscorea alata) Genotypes to
Varying Rates of NPK (15:15:15) Fertilizer in an Ultisol.
Ndaeyo1, N. U., Akpan1,
E. E., Bassey1, E. E., Mbong2, E. O.,
George3, U. U.
1Department
of Crop Science, University of Uyo, Uyo, Akwa Ibom State.
2Department
of Environmental Biology, Heritage Polytechnic, Ikot Udota-Eket
Akwa Ibom State
3Department
of Fisheries & Aquaculture, Akwa Ibom State University, Obio
Akpa Campus.
Telephone: 09035374893, Email:
mbongemem@yahoo.com
Abstract:
Yield responses of five genotypes
of Dioscorea alata (TDa 00/00060, TDa 02/00812, TDa
02/00019, TDa 02/00019, TDa 00/00060 and Uyo local), NPK
fertilizer rates (300 and 400kg) and three yield components
(seed tuber yield, ware tuber yield and total tuber yield (t/ha)
were evaluated. Particle size analysis showed that sand
fractions was 91.40% and 84.80% at 0-15 and 15-30cm depths,
respectively, followed by clay, 6.40 and 10.20%, and silt 2.20
and 5.00% respectively. The soil phosphorus content was high
(212.31 and 255.91 at 0-15 and 15-30cm depths, respectively)
whereas the organic matter content, total nitrogen, and
exchangeable bases were below critical values at both 0-15 and
15-30 cm soil depths. Results also revealed that the yield of
D. alata genotypes differed significantly (P<0.05) with
fertilizer application. Highest seed tuber yield (17.27 t/ha was
obtained with TDa 00/00060 at 400kg/ha application rates. While
the least (0.97 t/ha) was obtained with local variety at 0kg/ha
application rate. Similarly, ware tuber yield was highest (6.23
t/ha) in TDa 00/00060 at 400kg/ha rate but least (1.10 t/ha) in
TDa 02/000812 receiving 0kg/ha fertilizer. The total tuber yield
was highest 923.50 t/ha) in TDa 00/00060 receiving 400kg/ha
fertilizer and least (6.24 t/ha) in local variety receiving
0kg/ha. The finding of this experiment recommends 400kg/ha
fertilizer application for optimum production of Dioscorea
alata in the area.
[Ndaeyo, N. U., Akpan, E. E.,
Bassey, E. E., Mbong, E. O., George, U. U. Evaluation of Yield
Responses of five Water Yam (Dioscorea alata)
Genotypes to Varying Rates of NPK (15:15:15) Fertilizer in an
Ultisol. J Am Sci
2021;17(7):39-44]ISSN
15451003 (print); ISSN 23757264 (online).
http://www.jofamericanscience.org
5. doi:10.7537/marsjas170721.05.
Keywords:
D. alata,
Yield, Response NPK, Soil
characteristics, Ultisol |
Full Text |
5
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6
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Identification Educational
Barriers to the Development of Entrepreneurial Spirit in Zanjan
University Students
Mohammad Reza Soleimanpour1,
Shadali Tohidlu 2
1.
Young Researchers Club, Varamin-Pishva Branch, Islamic Azad
University, Varamin, Iran
2.
PhD student of Agricultural Development, Bu Ali Sina University,
Hamedan, Iran
m_soleimanpour@yahoo.com
Abstract:
The main purpose of this study
is to identify educational barriers to the development of
entrepreneurial spirit in Iranian students. This study was
descriptive and quantitative research and included the use of
factor analysis as the main data processing method. The total
population was all students studying in Zanjan University that
185 students were selected using stratified random sampling. A
questionnaire was designed as the tool for collecting data.
After data collection, SPSS/16 was used in the statistical
analysis. The results of factor analysis showed that that the
five factors namely educational recourses, motivation in
training, teaching methods, foresight, and hardware resources
could explain 55.9% of the variation of barriers to the
development of entrepreneurial spirit in students. [Soleimanpour
M.R., Tohidlu S. Identification Educational Barriers to the
Development of Entrepreneurial Spirit in Zanjan University
Students. J Am Sci
2021;17(7):45-49]ISSN 15451003
(print); ISSN 23757264 (online).
http://www.jofamericanscience.org
6. doi:10.7537/marsjas170721.06.
Keywords:
Entrepreneurial spirit,
University students, Educational Barriers, Zanjan University,
Iran |
Full Text |
6
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7
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Residual Gas Saturation in
Gas Reservoirs
Mahmoud baneshi 1*,
Shahab Gerami 2
1)
Faculty of Petroleum Engineering, Amir Kabir University of
Technology, Tehran, Iran
2)National
Iranian Oil Company, Research and Technology Directorate,
Tehran, Iran.
Email:
m.baneshi@yahoo.com
Abstract:
The value of residual gas
saturation to water influx (Sgr) is a critical property when
estimating recoverable reserves in gas reservoirs overlaying
active aquifers, or natural gas storage reservoirs. It is
customarily assumed that when a gas reservoir is overlaying an
aquifer, water will imbibe into the gas-saturated zone with the
onset of gas production. The process of gas displacement by
water will be forced imbibition in areas of high drawdown and
spontaneous imbibition in the areas of low drawdown. Early work
in the 1950s and 1960s established that Sgr was not going to be
as low as 10-15% PV, as was commonly expected at the time. But
now, published values of Sgr vary between 15 and 80%. The
mechanism of trapping is not clear, some factors that may has
important effect on Sgr does not study very well and there is
not clear reason for some phenomena that occur in gas saturated
plugs. There is no relationship that could estimate Sgr as
function of reservoir characteristics. The results with
different authors, sometimes is quite different. So this subject
deserves further investigation. This paper summarizes some work
done on the subject of residual gas saturation and this paper
will provide a good reference for researchers who are interested
in investigating residual gas saturation in water drive
reservoir.
[Mahmoud baneshi, Shahab Gerami.
Residual Gas
Saturation in Gas Reservoirs.
J Am Sci
2021;17(7):50-57]
ISSN 15451003
(print); ISSN 23757264 (online).
http://www.jofamericanscience.org.
7.
doi:10.7537/marsjas170721.07.
Keywords:
Residual gas saturation-gas reservoir-imbibition-trapping |
Full Text |
7
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8
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The Relationship between Stock
Price and EPS: Evidence Based on Tehran Stock Exchange
SiroosKorahiMoghadam1,
YasanulahPorashraf2, Razierahim 3, Reza
ahmadi 4
1.
Assistant profosor of Islamic Azad University
2.
Assistant profosor of Ilam University
3.
Master Of Accounting
4.
CEO of industrial services
Abstract:
In this study, we use cointegration methods to investigate the
relationship between stock prices and earnings-per-share (EPS).
Furthermore, we consider whether stock prices respond to EPS
under the different level of growth rate of operating revenue.
The empirical result indicated that the cointegration
relationship existed between stock prices and EPS in the
long-run. Furthermore, we found that for the firm with an
average level of growth rate, EPS has less power in explaining
the stock prices; however, for the firm with a low level of
growth rate, EPS has a strong impact in stock prices.
[Siroos Korahi Moghadam,
Yasanulah Porashraf, Razierahim, Reza ahmadi. The Relationship
between Stock Price and EPS: Evidence Based on Tehran Stock
Exchange.
J Am Sci
2021;17(7):58-65]
ISSN 1545-1003
(print); ISSN 2375-7264 (online).
http://www.jofamericanscience.org.
8.
doi:10.7537/marsjas170721.08.
Keywords:
Earnings-per-share(EPS), Stock
Prices, Earnings Response Coefficient (ERC) |
Full Text |
8
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The
manuscripts in this issue are presented as online first for
peer-review, starting from
July 2, 2021.
All
comments are welcome:
editor@americanscience.org;
americansciencej@gmail.com,
or contact with author(s) directly.
For back issues of the Journal of American Science, click here.
Emails:
editor@americanscience.org;
americansciencej@gmail.com
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