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ISSN 1553-9865 (print); ISSN 2163-8950 (online), doi prefix: 10.7537, Monthly
Volume 11 - Issue 5 (Cumulated No. 119), May 25, 2019
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CONTENTS
No.
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Titles /
Authors /Abstracts
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Full Text
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No.
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1
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Evaluation of Dizzy Patients Using Videonystagmography and
Vestibular Evoked Myogenic Potentials
Fatma I. M. Nassem, Afaf A. Emara and Mona A Kotait.
Audiology Unit, ENT Department, Faculty of Medicine,
Tanta University, Egypt.
Fatmakhaliel87@gmail.com
Abstract:
Background:
Patients complain of sense of rotation may have otolith
dysfunction and this may be the cause of dizziness in
undiagnosed patients.
Objectives: This study aimed to evaluate the otolith
function in patients with
dizziness. Subjects and Method:
Control group consisted of 20 normal adults who had no
vestibular complaint with bilateral normal peripheral hearing.
Study group consisted of 42 adults which divided into two
subgroups, subgroup IIa (patients with normal VNG results) and
subgroup IIb (patients with abnormal VNG results). All patients
underwent basic audiological evaluation, office test,
videonystagmograghy (VNG) and both cervical and ocular
vestibular- evoked myogenic potential (VEMPs) tests. Results:
c-VEMPs was abnormal in 52.27% in patients of subgroup IIa and
in 45% in patients of subgroup IIb. o-VEMPs was abnormal in
40.9% in patients of subgroup IIa and in 37.5% in patients of
subgroup IIb. These abnormalities were in the form of absent
waves or delayed absolute latencies. Discussion:
Dizziness ranks among the most common complaints in medicine.
However, the term dizziness encompasses a variety of different
sensations, rotational vertigo or other illusory sensations of
motion might indicate a vestibular origin.
Conclusion:
Patients complaining of dizziness and VNG results normal or even
show abnormalities should be evaluated by VEMPs to exclude
presence of otolith affection contribute to dizziness.
[Fatma
I. M. Nassem, Afaf A. Emara and Mona A Kotait.
Evaluation of Dizzy Patients Using Videonystagmography and
Vestibular Evoked Myogenic Potentials.
Researcher
2019;11(5):1-7].
ISSN 1553-9865 (print); ISSN 2163-8950 (online).
http://www.sciencepub.net/researcher.
1.
doi:10.7537/marsrsj110519.01.
Keywords:
Dizziness, Videonystgamography, Vestibular evoked Myogenic
Potentials |
Full Text |
1
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2
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Poultry Biotechnology as an
Optional Tool to Improve Poultry Industry in Ethiopia
Hirpa Bobaso1* and
Sultan Abda 2
1.
Haramaya University, College of
Veterinary medicine, epidemiology Department, Haramaya,
Ethiopia.
2.
National University of
Singapore, Yong Loo Lin School of Medicine, Lower Kent Ridge Rd.
119077, Singapore.
*Corresponding Author
Email:
hirpabobaso17@gmail.com
Abstract:
Agricultural led transformation
is one of the way-through to achieve fast development and
sustained food supply in Ethiopia. As the country economy
largely depends on agriculture, traditional poultry production
is practiced across the country and playing significant roles in
the livelihoods of rural households. It is the sector whereby
little technology intervention potentially come-up with big
impacts and one of the fertile area of investment with huge
demand for the introduction of improved poultry packages at
large. Poultry Biotechnology encompasses assisted breeding and
reproductive biotechnology like Artificial insemination to the
advanced tools of cloning and genetic engineering used to alter
the existing genetic compositions of chickens to improve their
health as well as their productive performance. The high quality
product from transgenic eggs and meat can also boost human
health. Concomitantly, biotechnology tools reinforce the process
to scale-up current small-scale farm in to the large intensive
poultry farms. The lesson learned so far by the government and
few private investments also indicated promising success. On-top
of this, policies and regulations that uplift practical
acceptance of biotechnology is indispensable. In this regard,
the current review was written to provide compelling foundations
to initiate biotechnology research and commercial investment on
poultry sector in Ethiopia.
[Bobaso H, Abda S. Poultry
Biotechnology as an Optional Tool to Improve Poultry Industry in
Ethiopia. Researcher 2019;11(5):8-13].
ISSN 1553-9865 (print);
ISSN 2163-8950 (online).
http://www.sciencepub.net/researcher.
2.
doi:10.7537/marsrsj110519.02.
Keywords:
Biotechnology, artificial insemination, poultry, transgenes |
Full Text |
2
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3
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Effect of Early Postoperative
Intravenous Glutamine Supplementation on the Outcome after
Colorectal Cancer Surgery
Dr. Mustafa Kamel Reyad, Dr.
Mahmoud Hassan Mohamed Hassan, Dr. Rania Hassan Abd El-Hafiez
and Tasneem Ameen Abd El-Sattar Kabeel
Anesthesia, Intensive Care & Pain
Management Department, Faculty of Medicine, Ain Shams
University, Egypt.
tasneemkabeel33@gmail.com
Abstract: Background:
Glutamine is the most abundant amino acid in the body and
constitutes 61% of the total pool of amino acids in the human
muscle. It is the most important circulating “nitrogen shuttle”
accounting for 30%-35% of all amino acid nitrogen transported in
the blood and serves as important precursor for the de novo
synthesis of nucleotides, nucleic acids, amino acids, proteins,
and glutathione. Objectives: To evaluate the effect of
intravenous glutamine supplementation on the postoperative
complication rate and duration of hospital stay in colorectal
cancer patients. Patients and Methods: Type of Study:
Prospective analytic study, study Setting: Ain-Shams University
Hospitals and Tanta Cancer Institute, Study Period: from May
2018 to December 2018, Study Population: Patients underwent
colorectal cancer surgery. Results: In our study, the
median C-reactive protein levels were significantly lower from
day 7 in glutamine group in comparison with control group but
still higher than normal range. At days 10 and 14, the CRP level
reached the normal range. These suggests the positive effects of
glutamine in relieving the stress response in colon cancer
patients. The detected high C-reactive protein levels could
result from the presence of some factors that affect the CRP
levels like fever, leukocytosis, the surgical maneuver and the
presence of inflammation. Conclusion: We found that early
postoperative supplementation of parenteral glutamine in
addition to standard nutritional support in patients that
underwent colorectal cancer surgeries reduced the incidence of
postoperative complications and improved the outcome in those
patients.
[Mustafa
Kamel Reyad, Mahmoud Hassan Mohamed Hassan, Rania Hassan Abd El-Hafiez
and Tasneem Ameen Abd El-Sattar Kabeel. Effect of Early
Postoperative Intravenous Glutamine Supplementation on the
Outcome after Colorectal Cancer Surgery.
Researcher
2019;11(5):14-21].
ISSN 1553-9865 (print);
ISSN 2163-8950 (online).
http://www.sciencepub.net/researcher.
3.
doi:10.7537/marsrsj110519.03.
Keywords:
Intravenous Glutamine, Colorectal Cancer Surgery. |
Full Text |
3
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4
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Conventional Surgery versus
Endovenous Laser Ablation in Treatment of Primary Varicose Veins
Mahmoud Ahmed Alshafei, Shaaban
Mohamed Abd Almaged, Mohamed Korayem Fattouh, Mohamed Mohamed
Fathi Morad Ghonium
Department of General Surgery,
Faculty of Medicine, Ain Shams University
dr_morad34@yahoo.com
Abstract: Background:
Conventional surgical
management for varicose veins entails flush ligation of the SFJ,
LSV stripping and stab avulsions of the varicosities. Although
this surgical modality is safe and effective at short-term and
midterm follow-up, it is not rare for recurrence, hematoma, and
skin infection to occur after the surgical procedure. Rarely,
massive bleeding due to injury to femoral veins, or even to the
femoral artery during surgery, and mortality from pulmonary
embolism and DVT can happen. Therefore, novel treatment
modalities have been developed over recent years to overcome the
limitations of conventional surgery. Within the last two
decades, radiofrequency ablation and endovenous laser treatment
(EVLA) have been introduced as an important new endovenous
ablative techniques for the minimally invasive treatment of
superficial venous reflux and varicose veins. Therefore, we
performed the present systematic review and meta-analysis in
order to evaluate the short and long-term outcomes of EVLA
compared to conventional surgery.
Objective:
To assess the role of endovenous
laser ablation in comparison to conventional surgery in
treatment of primary varicose veins.
Materials and Methods:
An electronic search was
conducted from the inception till December 2018 in the following
bibliographic databases: Medline via PubMed, SCOPUS, Cochrane
Central Register of Controlled Trials (CENTRAL), EMBASE, LILACS
via Virtual Health Library, and Google Scholar to identify
relevant articles. We used different combinations of the
following queries: ((“("Laser Therapy"[Mesh] OR "endovenous
laser ablation") AND "Varicose Veins"[Mesh]). The search have
been done with no limit regarding the year publication.
Results: In the
present study, we searched Medline via PubMed, SCOPUS, Web of
Science, Cochrane Central Register of Controlled Trials
(CENTRAL), LILACS via Virtual Health Library, and Google Scholar
from their inception till December 2018. The search retrieved
1645 unique records. We then retained 49 potentially eligible
records for full-texts screening. Finally, 17 reports of 11 RCTs
(Total No. of legs =2524) were included in the present
systematic review and meta-analysis.
Conclusion: EVLA is a
safe and effective treatment alternative for patients with
primary varicose veins. The present systematic review and
meta-analysis show that EVLA has, at least, comparable efficacy
to conventional surgery in terms of recurrence rates, disease
severity, and quality of life. Further high-quality long-term
studies are still needed to confirm our findings.
[Mahmoud Ahmed Alshafei, Shaaban
Mohamed Abd Almaged, Mohamed Korayem Fattouh, Mohamed Mohamed
Fathi Morad Ghonium.
Conventional Surgery
versus Endovenous Laser Ablation in Treatment of Primary
Varicose Veins.
Researcher
2019;11(5):22-32].
ISSN 1553-9865 (print);
ISSN 2163-8950 (online).
http://www.sciencepub.net/researcher.
4.
doi:10.7537/marsrsj110519.04.
Keywords:
Endovenous laser ablation, Clinical, Etiologic, Anatomic and
Pathophysiologic |
Full Text |
4
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5
|
Cosmopolitanism In The Poetry
Of Kamala Das
Surender Kumar
Research Scholar, Department of
English and Foreign Languages, Maharishi Dayanand University,
Rohtak, Haryana (Indian)
Email:
skumarjangra29@gmail.com
Abstract:
In conjunction with these aspects, it is imperative to call into
context the opening quote. The lines highlight certain important
aspects that demand attention while studying a vibrant area like
Indian Literatures in Englishv, particularly poetry. The main
points of contention are the multiple ways of engagement with
language and the need to examine how Indian poets have deftly
manoeuvred it, which becomes the focus of this research on
Kamala Das. In short, cosmopolitanism refers to the opinions and
behaviors emerging from the theory that cultural and artistic
activities should have neither national nor parochial boundaries
even when defined by them. In other words, it emphasizes a
dialogue among differences, thereby validating itself as a tool
in analyzing the gamut of Indian Literatures in English,
particularly poetry. Now, therefore, you are no longer
foreigners and strangers, but fellow citizens with the saints
and members of the household of God, having being built on the
foundation of the apostles and prophets, Jesus Christ himself
being the cornerstone, in whom the whole building, being joined
together, grows into a holy temple in the Lord. In whom you are
also are being built together for a habitation of God in the
spirit.
[Surender Kumar.
Cosmopolitanism In The Poetry Of Kamala Das.
Researcher
2019;11(5):33-36].
ISSN 1553-9865 (print); ISSN 2163-8950 (online).
http://www.sciencepub.net/researcher.
5.
doi:10.7537/marsrsj110519.05.
Key words:
Poet, Kamla Das, Cosmopolitanism |
Full Text |
5
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6
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Body and Sexuality: Reading
Meena Kandasamy’s Ms Militancy as Poems of Resistance
Sanjana Antil
Ph.D. Research Scholar,
Department of English and Foreign Languages, Central University
of Haryana, Mahendergrah, (Indian)
Email:
sanjnaantil01@gmail.com;
Contact No.
+91-8607852700
Abstract:
Meena Kandasamy is the polemical
writer who utilizes her pen as a sword to fight the monster that
is Caste. Kandasamy uses her poetry as a means of violent
resistance against the nationally ingrained and prevalent system
of caste. Kandasamy’s attempt to bring out an alternate version
of feminist poetry to give independence to the voices of
non-dominant caste women strikes a parallel with the final phase
of Gynocriticism. The very notion of the ‘body’ of the third
world woman, especially the underprivileged woman bring it
closer to the postulation of the “subaltern” in Spivak’s essay
Can the subaltern speak? (1985). Spivak points out the threefold
oppression faced by these women i.e. patriarchy, race and
domination by first world feminists. Spivak asserts that the
“subaltern” should favour to write their own body and stories.
Kandasamy’s attempts to dig out the inscribed voices from
history and to reread them retrieves the diffusive traces of
suffering and pain which are often overshadowed by the facade of
empathy shown by the dominant existing socio-political
discourse. Meena Kandasamy tries to problematize this
camouflaged circulation of power through her intensely
inquisitive poetry. Active resistance or revolutionary activism,
the discourse which seeks to analyze what needs to change and
set it right, is the core theme of Kandasamy’s raw and out
rightly unbridled poetry, “full of jagged edges”
(Duarte). Hailing from a caste-conscious background, her poetry
reflects a society that grants inhuman sanction to caste
discrimination and violence on Dalits. Kandasamy uses her poetry
as a means of violent resistance against the nationally
ingrained and prevalent system of caste which enables dominant
caste people to subjugate the non-dominant caste persons. The
title of her first anthology
Touch
reiterates the most
inhuman of stigmas attached to Dalits — their very touch being
considered polluting. Kandasamy’s poem
Touch
voices her
sentiments towards the predicament of her community set by the
starkly biased and hypocritical Hindu Brahmanical system.
[Antil,
S. Body and Sexuality: Reading Meena Kandasamy’s Ms Militancy
as Poems of Resistance. Researcher 2019;11(5):37-40].
ISSN 1553-9865 (print); ISSN 2163-8950 (online).
http://www.sciencepub.net/researcher.
6.
doi:10.7537/marsrsj110519.06.
Keywords:
Indian Poetry In English, Dalit
Poetry, Literature And Identity, Body and Sexuality |
Full Text |
6
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7
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Comparative
study of the effects of X-ray and electron irradiations on the
optical properties of the Solid State Nuclear Track Detector
(CR-39)
1KH.M.
Abdel Raouf,
2Kh.M.
Hella,, and 3A. Rashad
1,2Physics
Department, Al- Qunfudhah University college, Umm Al-Qura
University, Kingdom of Saudi Arabia
2Experimental
Nuclear Physics Department, Nuclear
research Center Atomic Energy Authority, Cairo Egypt B.O.13759
1Radiology
Department Zagazig University Hospital Zagazig University
Zagazig, Egypt
3Acceleration
Department Nuclear research Center Atomic Energy Authority,
Cairo Egypt B.O.13759
Corresponding
Auther:
khalidhella@yahoo.com
(KH.M. Hella)
Abstract:
Recently Solid State Nuclear
Track Detector (CR-39) has a very important place at the top of
the radiation detector for passive measurement, For this reason
many investigation were done to improve the properties of this
detector. In this investigation the energy gap of the SSNTD were
calculated by measuring transmission at different wave length
for ten samples, five of them were irradiated by electron at
different energies while the other five samples were irradiated
using X-ray at radiation part of the university hospital of
Zagzig university, Zagzig, Egypt. Another one sample was used as
standard sample. The transmission for all samples was measured
at the National Research Center Al-Doqe, Cairo Egypt.
[KH.M.
Abdel Raouf Kh.M. Hella,, and A. Rashad.
Comparative
study of the effects of X-ray and electron irradiations on the
optical properties of the Solid State Nuclear Track Detector
(CR-39).
Researcher
2019;11(5):41-47].
ISSN 1553-9865 (print); ISSN 2163-8950 (online).
http://www.sciencepub.net/researcher.
7.
doi:10.7537/marsrsj110519.07.
Key word:
CR-39, energy gap |
Full Text |
7
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8
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Impact of Pencom Scheme on
Civil Servants Productivity in Rivers State
Charles Ndubuisi Onyeche
Department
Business Administration and
Management,
School of Business and
Administrative Studies,
Captain Elechi Amadi Polytechnic, Rumuola, Port Harcourt,
Nigeria
charlesndubuisi62@gmail.com
Abstract:
The study examined the impact of Pencom Scheme on civil
servants’ productivity in Rivers State, Nigeria. The research
design adopted was the survey approach through the use of
structured questionnaire. The population of the study consisted
of all the servants in Rivers State which is given as 2,794
employees. A sample of 350 staff selected from Rivers State
civil servants in Port Harcourt was drawn for the study. The
analysis was done through descriptive and inferential
statistical tools. The findings among others revealed that
majority of the respondents prefer to save outside any pension
scheme while others do not know bow to calculate how much they
need to save for retirement. The study also found that
dependence on budgetary provisions, bribery and corruption,
tedious payment procedures, poor staffing, poor record keeping,
lack of adequate and timely budgetary provisions and increases
in salaries constitute the key limitations to effective and
efficient implementation of Contributory Pension Scheme (CPS) in
Rivets State. It revealed that the main policy options open to
government to ensure efficiency of the CPS in Rivers State
included: Maintaining of discipline in pension administration
and management, ensuring seamless funding of the retirement
scheme, establishing a uniform set of rules, regulations and
standards for the administration and payments of retirement
benefits and improving the living standard of the elderly people
through prompt payment of their retirement benefits. In
conclusion, it is clear and evident in the study that: there is
positive/significant relationship between the deductible-saving
of worker’s salary and the efficiency of workers in Rivers State
civil service and there is positive/significant relationship
between the deductible- saving of workers’ salary and the
efficiency in Rivers State civil service. Therefore, it is
recommended that Pension Fund Administrators (PFAs) should be
transparent and accountable in their dealings with their clients
through regular update of their customers account status.
[Onyeche, C. N. Impact of
Pencom Scheme on Civil Servants Productivity in Rivers State.
Researcher
2019;11(5):48-59].
ISSN 1553-9865 (print);
ISSN 2163-8950 (online).
http://www.sciencepub.net/researcher.
8.
doi:10.7537/marsrsj110519.08.
Keywords:
Pencom Act Scheme, Civil
Servants, Workers productivity, Workers. |
Full Text |
8
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9
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A Study on Man-Monkey
Conflicts in Bir Bara Ban Conservation Reserve Forest in
district Jind, Haryana (India)
Hardeep Singh
Lecturer in Biology, Govt.
Senior Secondary School, Singowal in Jind, Haryana (India)
Email:
hssonadil@gmail.com
Abstract:
The present study was planned
from October, 2018 to March, 2019. To study man-monkey Conflicts
in Bir Bara Ban Conservation Reserve Forest in district Jind,
Haryana (India), Direct contact methods and scan sampling method
followed by Kumar, 2009; Kumar and Malhotra, 2014; Kumar, 2014.
The sighted individuals of rhesus macaques and its troops
conflicted with nearby inhibited human beings was photographed
by Sony cybershot camera DCR-H-9 and Sony handy cam model
DCR-HC-42E. During the present study, habitat destruction
through illegal felling, less numbers of fruit trees and
shifting of rhesus macaques for feeding in particular day,
i.e., Tuesday and Friday as well as in particular season
nearby agricultural areas, villages areas and Hanuman Mandir (a
holy temple) were the major reasons for conflicts with man and
his pets (domestic dog, Canis familiaris) in Bir Bara Ban
Conservation Reserve Forest in district Jind, Haryana (India)
[Hardeep Singh.
A Study on Man-Monkey Conflicts in Bir Bara Ban Conservation
Reserve Forest in district Jind, Haryana (India).
Researcher
2019;11(5):60-64].
ISSN 1553-9865 (print); ISSN 2163-8950 (online).
http://www.sciencepub.net/researcher.
9.
doi:10.7537/marsrsj110519.09.
Keywords:
Rhesus Monkey, Human Beings, Conflicts, Forest, Haryana |
Full Text |
9
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10
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Epidemiology of Stroke in A
Village From Sohag Upper Egypt; Community Based Study.
Sayed Ahmed Fathy El-Zayat1,
Ahmed Fathy Hamed2, Hussein Awad El Gharieb1,
Mohammed Hamed Rashad1 and Ahmed Sabry Yaseen1*.
1
Neurology Department, Faculty of Medicine, Al-Azhar University
2
Community Medicine Department, Faculty of Medicine, Sohag
University
drasy2014@gmail.com
Abstract:
Background: Stroke now ranks as
the second leading cause of death and the first cause of
morbidity worldwide. The aim of this study was to explore the
incidence and prevalence of stroke, its different subtypes and
associated risk factors in a sample from Sohag Governorate.
Methods: A cross sectional study was done on a sample from Sohag
governorate, At the community level, house to house screening.
Patients included who complaining of acute cerebrovascular
stroke (ischemic, and hemorrhagic (including ICH and SAH) in the
period from 1/4/2017 to 30/9/2017 and all old cases before April
2017. We excluded patients with Traumatic SAH and traumatic ICH
and with any case Suffer from acute neurological deficit due to
non-vascular cause like tumors or infections. Results:
Ninety-three cases were diagnosed as having CVS; 77 cases were
presented with ischemic stroke representing 82.8 % and 16 cases
were presented with hemorrhagic stroke representing 17.2 %. Our
study shows significant statistical difference between both
study groups as regard Marital Status, Hepatic diseases, also as
regard Side of Hemiplegia, Seizures (Generalized more than
Focal), vomiting, Impaired Consciousness, and Sphincteric
disturbances. The most common risk factor for stroke was
hypertension, which was observed among 69.89% of all stroke
cases, followed by smoking and diabetes mellitus (DM). The
Prevalence of cerebrovascular stroke per 1000 total population
was 5.47 while the incidence of new stroke cases was 1.7 stroke
cases/ 1000 population at risk (at 6 months).Conclusion:
Overall, the prevalence of stroke in Egypt is higher than in
many surrounding countries. Clinical presentation and risk
factors.
[Sayed Ahmed Fathy El-Zayat,
Ahmed Fathy Hamed, Hussein Awad El Gharieb, Mohammed Hamed
Rashad and Ahmed Sabry Yaseen.
Epidemiology of Stroke in A Village From Sohag Upper Egypt;
Community Based Study.
Researcher
2019;11(5):65-72]. ISSN 1553-9865 (print); ISSN 2163-8950
(online).
http://www.sciencepub.net/researcher.
10.
doi:10.7537/marsrsj110519.10.
Keywords:
stroke, epidemiology, Sohag/Upper Egypt. |
Full Text |
10
|
11
|
A Study on Man-Monkey
Conflicts in Bir Bara Ban Conservation Reserve Forest in
district Jind, Haryana (India)
Hardeep Singh
Lecturer in Biology, Govt. Senior Secondary School, Singowal in
Jind, Haryana (India)
Email:
hssonadil@gmail.com
Abstract:
The present study was planned from October, 2018 to March, 2019.
To study man-monkey Conflicts in Bir Bara Ban Conservation
Reserve Forest in district Jind, Haryana (India), Direct contact
methods and scan sampling method followed by Kumar, 2009; Kumar
and Malhotra, 2014; Kumar, 2014. The sighted individuals of
rhesus macaques
and its troops conflicted with nearby inhibited human beings was
photographed by Sony cybershot camera DCR-H-9 and Sony handy cam
model DCR-HC-42E. During the present study, habitat destruction
through illegal felling, less numbers of fruit trees and
shifting of rhesus macaques for feeding in particular day,
i.e., Tuesday and Friday as well as in particular season
nearby agricultural areas, villages areas and Hanuman Mandir (a
holy temple) were the major reasons for conflicts with man and
his pets (domestic dog, Canis familiaris) in Bir Bara Ban
Conservation Reserve Forest in district Jind, Haryana (India)
[Hardeep Singh.
A Study on
Man-Monkey Conflicts in Bir Bara Ban Conservation Reserve Forest
in district Jind, Haryana (India).
Researcher
2019;11(5):73-77].
ISSN 1553-9865 (print); ISSN
2163-8950 (online).
http://www.sciencepub.net/researcher.
11.
doi:10.7537/marsrsj110519.11.
Keywords:
Rhesus Monkey, Human Beings, Conflicts, Forest, Haryana |
Full Text |
11
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12
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Synthesis, Characterization,
X-Ray Diffraction Study And Biological Activities Of Iron (Iii)
And Cobalt (Ii) Complexes Of L-Valine
Shuaibu Musa1,
*,
S.O. Idris1 And A.D. Onu2
1
Departmet Of Chemistry Ahmadu Bello University, Zaria-Nigeria
2
Federal College Of
Education, Zaria-Nigeria
Corresponding Author E-Mail Address:
shuaibumusa@abu.edu.ng
Abstract:
Two metal- amino
acids complexes in aqueous basic solution, [CoL2(H2O)2],
[FeL3] with L=Valine anions were synthesized and
analyzed by means of IR spectroscopies, powder X-ray diffraction
analysis, magnetic susceptibility measurements and molar
conductivity. Molar conductivity measurements showed that the
composition of the metal complexes correspond to a metal-amino
acid ligand ratio of 1:2 for Cobalt (II) complex and 1: 3 for
iron (III) complex. The IR spectra showed that the amino acids
act as bidentate ligands with coordination involving the
carboxyl oxygen and the nitrogen of the amino group. The result
also suggests the presence of coordinated water in cobalt (II)
complexes. Magnetic susceptibility measurements suggested a six
coordinate local symmetry around the (octahedral symmetry)
around Co (II) and Fe (III) ions. Magnetic susceptibility
studies also revealed that the complexes of Co and Fe are
paramagnetic with values of magnetic moments ranging from
5.10-6.00 BM for Fe (III) and 4.3-5.2 BM for Co (II) complexes,
respectively. The results also suggest that the ligand, valine
is a weak field ligands as its formed high spin complexes.
Powder XRD studies confirmed that the amino acid complexes are
crystalline in nature and that they largely crystallized in
monoclinic. It also suggests that the bonding mode in the
complexes is similar. The antimicrobial studies showed that the
amino acid ligands are biologically active and their metal
complexes showed significantly enhanced antimicrobial
sensitivity against the studied microbial strains in comparison
to the free ligands.
[Shuaibu Musa, S.O. Idris And A.D. On.
Synthesis, Characterization,
X-Ray Diffraction Study And Biological Activities Of Iron (Iii)
And Cobalt (Ii) Complexes Of L-Valine.
Researcher
2019;11(5):78-83].
ISSN 1553-9865 (print); ISSN 2163-8950 (online).
http://www.sciencepub.net/researcher.
12.
doi:10.7537/marsrsj110519.12.
Keywords:
magnetic susceptibility, FTIR, x-ray diffraction, electrolyte,
microbial inhibition |
Full Text |
12
|
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