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The Journal of American Science
(J Am Sci)
ISSN 1545-1003 (print); ISSN 2375-7264 (online),
doi prefix: 10.7537, Monthly
Volume 21, Issue 10, Cumulated
No. 212, October 25, 2025
Cover (jpg),
Cover (pdf),
Introduction,
Contents,
Call
for Papers,
am2110
The following manuscripts are presented as online first for
peer-review, starting from October 2, 2025.
All comments
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americansciencej@gmail.com,
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CONTENTS
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Titles / Authors
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1
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The Efficiency
of Healthcare Resources in the Kingdom of Saudi Arabia: An
Overview
Sherif B. Moussa1,3,
Rasha R. Basheer
4,5,
Mohammed S.
Hussein1,6,7,
Assem M. Salah8
1Healthcare
Management, Dr. Samir Abbas Hospital, Jeddah, KSA
2MBA
in International Healthcare Management, Cumbria, UK
3Associate
Professor of Fixed Prosthodontics, Faculty of Dentistry, October
University for Modern Science and Arts, Geiza, Egypt
4
Associate Professor of Operative Dentistry,
October University for Modern Sciences and Arts,
Giza,
Egypt.
5Consultant
of Restorative Dentistry, Biolife Clinics, Jeddah, KSA
6DBA,
Arab Academy for Science, Technology and Maritime Transport
7
Professor of
Internal Medicine, Faculty of Medicine, Al-Azhar University,
Cairo, Egypt
8M.
B. BCh, Faculty of Medicine, Benha National University, Egypt
Corresponding
author:
cherif_fayez@yahoo.com
Abstract:
An increased demand for healthcare services from the growing
population in the Kingdom of Saudi Arabia (KSA), together with a
significant rise in expenditure, has led to an urgent need to
develop a more efficient, fair and effective healthcare service
delivery system through proper resource management. The delivery
of the current healthcare system faces many challenges,
including a healthcare workforce that is unable to meet the
demand for services. In addition, approximately 60% of the
healthcare workforce is composed of expat workers, which results
in instability in the sector, as well as increased costs.
Another challenge is the fast rise in healthcare spending and
the payment methods used for healthcare providers, including the
pay-for-service method, which should be substituted with a
pay-for-performance (P4P) one. Furthermore, the level of
accessibility to healthcare services and the centralised
healthcare system seem to cause dissatisfaction for patients
receiving these services. The currently adopted solutions, such
as complete privatisation, are mostly ineffective, and new ways
should be considered. Resource management is considered to be a
continuous process of resource utilisation enhancement to
optimise patient well-being. For everyone’s benefit, all
stakeholders should participate in the solutions proposed in
order to confront the existing challenges facing the healthcare
sector. In addition, we should stress the importance of the role
of public–private partnership (PPP) in handling escalated
healthcare expenditure due to the increased demand for
healthcare services, which is caused by the aging population; an
increase in the annual population growth rate and increased life
expectancy; a high occurrence of lifestyle-related illnesses as
well as an increase in incidences of communicable diseases; and
an increased demand for a high level of technology to be used in
the healthcare sector. The application of eHealth, the adoption
of value-based care, increasing the population's awareness about
the importance of preventive rather than curative approaches in
the improvement of public health, and investment in medical
education, seem to benefit all related stakeholders, including
patients, healthcare providers, public and private payers,
suppliers and the community.
[Sherif B. Moussa,
Rasha R. Basheer,
Mohammed S.
Hussein,
Assem M. Salah
The Efficiency of
Healthcare Resources in the Kingdom of Saudi Arabia: An
Overview.
J Am Sci
2025;21(10):1-7]. ISSN 1545-1003 (print); ISSN 2375-7264
(online).
http://www.jofamericanscience.org.
01 doi:10.7537/marsjas211025.01
Keywords:
Efficiency; Healthcare; Resource; Kingdom of Saudi Arabia;
Overview |
Full Text |
1
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2
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Corporate
Governance: Strategic Role of Board of Directors and Its Effect
on Financial Performance. Case Study: Auto Companies Listed in
Tehran Stock Exchange
1Hossein
HajiBeigloo,2Younes Nazary,3Vahid Asadi;
4Meysam Goudarzi,5Ghasem Bakhshanddeh;
1P.hD
of Political Management, Allameh Tabatabae University
Hajibeigloo@gmail.com;
2M.S.
Student of Commerce Management, Allameh Tabatabae Universityy.nazari7@yahoo.com;
3M.S.
Student of IT Management, Allameh Tabatabae Universityv.asadi322@gmail.com;
4M.S.
Student EMBA of Allameh Tabatabaei University ,Tehran,Iranmeysam.godarziallame@yahoo.com;
5M.S.
Student of Commerce Management, Allameh Tabatabae Universityg.bakshandeh@gmail.com
Abstract:
Corporate governance is a critical factor in efficiency
improvement in any economy. It represents a collection of
interactions among board of directors, corporate management,
shareholders, and other stakeholders. Corporate governance
provides a structure for development of corporate objectives,
facilities to achieve those objectives, and means to supervise
corporate performance. Corporate governance mechanisms are
critical for company performance. This study examines the
internal mechanisms employed by board of directors and their
effects on financial performance through strategic planning. It
uses a case study of auto companies listed in Tehran Stock
Exchange. The role of board of directors in strategic management
is determined by their degree of participation in strategic
planning. In order to measure the role of board of directors in
strategic management, this study used a questionnaire developed
based on Hunger-Wheelen and Nadler Models. This questionnaire
was distributed to 105 board members of auto companies listed in
Tehran Stock Exchange. 75 questionnaires from 78 respondents
were included in this study. Financial performance (Tobin's Q)
was calculated based on corporate balance sheets. The study
findings revealed a significant relation between the role of
board of directors in strategic management and financial
performance. It means that board of directors with catalyst
role, active participation, or nominal participation in
strategic management had positive effect on corporate financial
performance. Conversely, board of directors with minimal
review, rubber stamp, or phantom roles in strategic management
had negative effect on corporate financial performance.
[Hossein
HajiBeigloo, Younes Nazary, Vahid Asadi; Meysam Goudarzi, Ghasem
Bakhshanddeh.
Corporate
Governance: Strategic Role of Board of Directors and Its Effect
on Financial Performance. Case Study: Auto Companies Listed in
Tehran Stock Exchange.
J Am Sci
2025;21(9):8-16]. ISSN 1545-1003 (print); ISSN 2375-7264
(online).
http://www.jofamericanscience.org.
02 doi:10.7537/marsjas211025.02
Keywords:
Corporate Governance; Auto Industry; Board of Directors;
Strategic Management; Corporate Financial Performance |
Full Text |
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Effect of
Hydrocortisone on the Early Post Natal Murine Thymic Vasculature
with Speclal Emphasis on High Endothelial Venule Cells
Phagocytose Apoptotic Leucocytes
Manal G. Abd El
Wahab1, Sawsan G. Abd El Wahab2
1Anatomy
Department, Faculty of Medicine for Girls Al Azhar University,
Cairo- Egypt
2Gynecology
and Obstetric Department, Badr General Hospital, Kingdom of
Saudi Arabia
Abstract:
The functions of the thymus gland were imperfectly understood,
but it appeared to control the development of immunologically
competent cells (T- lymphocytes) in the embryo and neonate. In
adult life the thymus atrophied to vestigial remnant, but to the
surgeon it was of importance in having an ill-understood
connection with myasthenia gravis and of being a rather rare
site of mediastinal tumour. Programmed cell death (apoptosis)
was a definable process with a morphology that was distinct from
necrosis, and occurred in lymphocytes and neurons. The
aim of work is to find out the effect of hydrocortisone on the
early post natal thymic vasculature with special emphasis on
high endothelial venule (HEV) cells phagocytose leucocytes. That
was done to confirm the role of HEV in removal of apoptotic
lymphocytes before histamine release. The work aimed to predict
a possible effect in human. Material and methods: 40 new
born rats were used. The rats were divided into two subgroups:
control subgroup contained 10 animals and experimental subgroup
contained 30 animals. Hydrocortisone was injected
intraperitoneal within 2 hours after birth by a therapeutic dose
(0.09 mg/animal). The thymus glands were taken from both groups
at the age of 2 days and prepared for serial histological
sections for light microscopic study. Semi thin and ultrathin
sections for electron microscopic study were also prepared.
Suitable stains were used. It was found that histological light
microscopic and ultra-structural study by transmission electron
microscopic (TEM) showed that thymus gland of two days white rat
contained a specialized system of blood vessels. Capsular
vessels, inter and para lobular vessels, cortical, medullary and
cortico -medullary vessels were noted. The subcapsular veins and
post capillary m in the form of apoptosis, increased
vascularity, increased size of endothelial cells and
epitheliocytes surrounding the vessels. However endothelial
lining was intact and endothelial cells of venule phagocytosed
apoptotic lymphocytes. The number of macrophages increased. It
was concluded that apoptotic lymphocytes induced by
hydrocortisone administration to rat could be phagocytosed by
high endothelial venule HEV cells in the thymus. That was
essential to clear the thymus from apoptotic leucocytes before
they release potent inflammatory mediators into the vasculature.
Phagocytosis was accomplished in part by macrophages.
[Manal G. Abd El
Wahab, Sawsan G. Abd El Wahab Effect of Hydrocortisone on the
Early Post Natal Murine Thymic Vasculature with Speclal Emphasis
on High Endothelial Venule Cells Phagocytose Apoptotic
Leucocytes.
J Am Sci
2025;21(10):17-26]. ISSN 1545-1003 (print); ISSN 2375-7264
(online).
http://www.jofamericanscience.org.
03 doi:10.7537/marsjas211025.03
Keywords:
Hydrocortisone; Murine Thymic Vasculature; High Endothelial
Venule; Apototic Leucocytes; Hydrocortisone |
Full Text |
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My New Model
Cosmology
Gangadhara Rao
Irlapati
H.
No.5-30-4/1, Saibabanagar, Jeedimetla, Hyderabad - 500 055,
Telangana, India.
Email:
gangadhar19582058@gmail.com
Abstract:
What is the atom? According to the scientific evidence
available to us and the available information of the past and
present cosmology, atoms consist of an extremely small,
positively charged nucleus surrounded by a cloud of negatively
charged electrons. Although typically the nucleus is less than
one ten-thousandth the size of the atom, the nucleus contains
more than 99.9% of the mass of the atom. The structure of an
atom is made up of three particles: protons, neutrons, and
electrons. Positively charged particles located in the nucleus
of an atom. Particles with no charge located in the nucleus of
an atom. Negatively charged particles that orbit the nucleus.
But according to my cosmology tomorrow's, the atom present from
hydrogen to uranium and above is a gigantic universe resembling
to our universe and the photon. It has a marvelous structure
and properties containing the electrons, protons, and neutrons
exactly similar structure like galaxies, stars, and planets in
our universe, and similar structure in the photon. That means,
whatever structure and properties atom has, our universe and
photon also has the same structure as the universe and photon.
There may be continents, oceans, countries, living creatures and
civilizations on some earth-like neutrons with favorable
conditions in the atom exactly similar to earth-like planets in
our universe. There may be many such earth-like neutrons in the
atoms. For the living creatures on the earth-like neutrons in
the atom, in their view, their atom is a great universe, but
they do not know that there are another gigantic universe exists
above them in the ascending order that is our universe and even
on the earth-like bodies with favorable conditions on the
particles in the photons beneath atom. This means atoms are an
enormous-mixed compound of electrons, protons, neutrons,
earth-like neutrons and their compounds behaves as an individual
universe. I adduce several lines of evidences to support this
point. Let's learn about the Atomic-universe in detailed.
[Gangadhara Rao
Irlapati.
My New Model Cosmology.
J Am Sci
2025;21(10):27-83]. ISSN 1545-1003 (print); ISSN 2375-7264
(online).
http://www.jofamericanscience.org.
03 doi:10.7537/marsjas211025.04
Key Words:
Bioforecast (1965-70); A New Hypothetical Model of Cosmology
(1970-77); Inquisition (1977-79); Basics of Geoscope (1980-87);
Basics of Monsoon Time Scales (1987-91); Indian Monsoon Time
Scale (1991); Researches on Earth and space related issues
(1991-2000); Numerical Weather Periodic Tables 2000-10); Designs
of Geoscope projects (2010-20); Designs of Global Monsoon Time
Scales (2020) |
Full Text |
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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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