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Life Science Journal 
 Acta Zhengzhou University Overseas Edition
 (Life Sci J)
ISSN 1097-8135 (print); ISSN 2372-613X (online), doi:10.7537, Monthly
 
Volume 14 - Number 8 (Cumulated No. 79), 25, 2017. 
Cover (jpg), Cover (pdf), Introduction, Contents, Call for Papers, lsj1408
 

The following manuscripts are presented as online first for peer-review, starting from August 3, 2017. 

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CONTENTS  

No.

Titles / Authors /Abstracts

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1

Endocan as a Novel Biomarker Versus Alphafetoprotein in Hepatitis C Virus Related Cirrhosis with Hepatocellular Carcinoma

 

Helmy A., Farag F., Abd El-Fattah N. and Sheta T.

 

Department of Internal Medicine, Faculty of Medicine, Mansoura University, Mansoura, Egypt.

drtarek_sheta@yahoo.com

 

Abstract: Background: In Egypt, the prevalence of hepatitis C virus infection is high (about 20%). HCC is the major cause of death in patients with chronic hepatitis C virus infection. HCC is the most common primary liver cancer and the third common cause of cancer related death (14.8%). Alpha Fetoprotein (AFP) is the most commonly used tumor biomarker for the early detection and clinical follow up of patients but its low positive rate, false-positive and false-negative results limits its value in diagnosis of HCC. Endocan is a 50 kDa soluble proteoglycan that is produced and secreted by tumor vascular endothelial cells. Recent studies showed that endocan is overexpressed in HCC tissues and sera and has been associated with tumor progression and poor outcomes. Aim of the work: To validate endocan level in HCV cirrhotic patients with or without HCC compared to AFP. Patients and methods: Sixty six Egyptian patients with chronic hepatitis C (CHC) were divided into 2 groups and thirty healthy subjects as a control group, measurement of serum endocan and AFP level were done. Results: Serum endocan level was significantly high in HCC patients with cutoff point ≥3.59 ng/ml with 100% sensitivity,83% specificity which is superior to AFP level in which cutoff point was ≥14.3 ng/ml with 82%sensitivity and 73% specificity. Conclusion: Serum endocan level can be considered a good diagnostic marker in HCC on top of CHC infection as compared to AFP.

[Helmy A., Farag F., Abd El-Fattah N. and Sheta T.. Endocan as a Novel Biomarker Versus Alphafetoprotein in Hepatitis C Virus Related Cirrhosis with Hepatocellular Carcinoma. Life Sci J 2017;14(8):1-10]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 1. doi:10.7537/marslsj140817.01.

 

Keywords: Endocan, Alpha-fetoprotein, Biomarker, Hepatocellular carcinoma

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Comparative Study of the Effects of Orlistate and Green Coffee Bean Extract on Tongue Mucosa in Obese Rat Model

 

Amel M. Ezzat and Doaa A. Labah

 

Oral Biology Department, Faculty of Dentistry, Tanta University, Egypt

doaalabah@hotmail.com

 

Abstract: Background: Obesity is a condition of abnormal accumulation of body fat which is directly associated with increased risk of many chronic diseases. Orlistatis a lipase inhibitor commonly used as anti-obesity agent. Green coffee bean extract (GCBE) is one of the newest weight loss supplements. Aim of study: To evaluate and compare the effects of orlistat and GCBE on tongue mucosa in rats fed high fat diet (HFD). Materials and Methods: Twenty-four, adult male rats weighting 150 7 g were allocated into four equal groups; control, HFD (20 g fat/100 g diet), HFD- orlistat treated (200 mg /kg diet) and HFD- GCBE treated (400 mg /kg bw) groups. After four weeks, the animals were weighted then euthanized and the tongue samples were processed for histological and ultrastructural study. ANOVA test was used to compare initial and final body weights between groups. Results: The tongue mucosa of HFD and HFD- orlistat treated groups showed atypical architecture in comparison with control however HFD- GCBE treated group revealed almost normal tongue mucosa. Statistical analysis of HFD- orlistat treated and HFD- GCBE treated groups showed non-significant difference between their initial and final body weights and their final body weights simulated each other although there were a significant decrease in their final body weightsbelow those of control and HFD groups. Conclusion: Obesity caused deleterious effects on rats' tongue mucosa. However, both orlistat and GCBE exerted potent weight loss effects. Unlike orlistat, GCBE had great ability to restore normal architecture of tongue mucosa.

[Amel M. Ezzat and Doaa A. Labah. Comparative Study of the Effects of Orlistate and Green Coffee Bean Extract on Tongue Mucosa in Obese Rat Model. Life Sci J 2017;14(8):11-18]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 2. doi:10.7537/marslsj140817.02.

 

Key words: Obesity, Orlistat, Green coffee bean extract, Tongue mucosa

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Prevalence of Monogenetic Trematodal Diseases in Some freshwater fishes at Kafr El-Sheikh Governorate

 

Mohamed S.M. Gado, Nadia B. Mahfouz, Eman M.M. Moustafa and Amina M. M. Abd El-Gawad*

 

1Department of Fish diseases and management, Faculty of Veterinary Medicine, Kafr El-Sheikh University, Kafr El-Sheikh, Egypt.

*email: vetamina7@gmail.com

 

Abstract: Eight hundred specimens of freshwater fishes (Oreochromis niloticus and Clarias gariepinus) (100 fish per season/ species) were investigated for seasonal incidence of monogenean trematodes (Dactylogyrus sp. and Gyrodactylus sp.). The clinical signs of most examined fishes showed dark or pale body coloration, scales detachment in O. niloticus, emaciation in C. gariepinus, excessive amounts of mucous on the external body surface, ascites, scattered hemorrhagic patches and ulcerative areas in different parts of the skin as well as severe congestion of the gills. Dactylogyrus sp. have the highest rate of the infestation (17.5% and 34%) in O. niloticus and C.gariepinus, respectively. While, Gyrodactylus sp. infection was found to be a mixed infection in all cases with Dactylogyrus sp.; showing a prevalence rate (0.25% and 2.25%) in O. niloticus and C. gariepinus, respectively. The seasonal prevalence for monogenean infestation was the highest in summer season (39% and 63%), followed by spring (14% and 41%), autumn (13% and 27%) and winter (4% and 5%) among O. niloticus and C. gariepinus, respectively. In addition, some hematological investigations and histopathological alterations of the infested freshwater fishes were recorded.

[Mohamed S.M. Gado, Nadia B. Mahfouz, Eman M.M. Moustafa and Amina M. M. Abd El-Gawad. Prevalence of Monogenetic Trematodal Diseases in Some freshwater fishes at Kafr El-Sheikh Governorate. Life Sci J 2017;14(8):19-33]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 3. doi:10.7537/marslsj140817.03.

 

Keywords: Clarias gariepinus, monogenea, Oreochromis niloticus, Prevalence.

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Identification of single nucleotide polymorphisms in Melanocortin 1 Receptor Gene of Iraqi chicken breeds and their effects on protein structure

 

Salah Mahdi Alsudany 1,2, Hossain Moradi Shahrbabak 1, Seyed Reza Miraee Ashtiani 1, Mostafa Sadeghi 1

 

1Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.

2 Department of Animal Production, College of Agriculture, University of Basrah, Basrah, Iraq.

Corresponding author. Tel: +98 2632248082. Fax: +98 2632246752. E-mail address: hmoradis@ut.ac.ir (H. Moradi Shahrbabak).

 

Abstract: Melanocortin 1 Receptor (MC1R) gene plays important roles in regulating biosynthesis of eumelanin (black/brown) and pheomelanin (red/yellow) pigments in a wide range of mammals, reptiles, and birds. In this study, the sequence diversity of a partial coding region of MC1R was investigated in Iraqi chicken breeds. After DNA extraction from blood samples of 95 chickens, PCR amplification was performed for a 681-bp fragment of MC1R and the products were sequenced to detect single nucleotide polymorphisms (SNPs). A total of four SNPs were detected including two synonymous (D78272:g.1094A>G and D78272:g.1292C>T) and two nonsynonymous mutations (D78272:g.915A>G and D78272:g.1095C>T). The A/G allele frequencies were 0.92/0.08 and 0.95/0.05 in D78272:g.915A>G and D78272:g.1095C>T mutations, respectively. In addition, the C/T allele frequencies were 0.94/0.06 and 0.96/0.04 in D78272:g.1095C>T and D78272:g.1292C>T mutations, respectively. The amino acid substitution of isoleucine to valine in D78272:g.915A>G SNP had no considerable effect on physicochemical properties of MC1R protein. However, a significant effect of cysteine to arginine substitution in D78272:g.1095C>T mutation was predicted on some physicochemical properties (isoelectric point, net charge, and hydrophobic index) of the translated protein. These results imply that the mutation D78272:g.1095C>T probably affect the function of MC1R protein and that this polymorphism can be used as a useful molecular marker for identification of plumage color in Iraqi native chickens.

[Salah Mahdi Alsudany, Hossain Moradi Shahrbabak, Seyed Reza Miraee Ashtiani, Mostafa Sadeghi. Identification of single nucleotide polymorphisms in Melanocortin 1 Receptor Gene of Iraqi chicken breeds and their effects on protein structure. Life Sci J 2017;14(8):34-39]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 4. doi:10.7537/marslsj140817.04.

 

Keywords: MC1R gene, Chicken, DNA sequencing, SNPs, Polymorphism, Plumage color

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Awareness and knowledge about oral cancer among people in Jeddah, Saudi Arabia.

 

Zohour K. Al-Somali1, Hawazin Y. Hefni2, Prof. Ghadah Mansour 3

 

1 King Abdulaziz University Faculty of Dentistry P.O Box 5335 Jeddah 23448, rose-khalid@hotmail.com

2 King Abdulaziz University Faculty of Dentistry P.O Box 80209 Jeddah 21589, Zonahyh@gmail.com

3 Professor of Oral Medicine, Faculty of Dentistry King Abdulaziz University, KSA P.O Box 80209 Jeddah 21589, mansourghada@yahoo.com

 

Abstract: Oral cancer is becoming prevalent and has dramatically become one of the causes of death among human race. However like any other cancers, early diagnosis is the key to save patients who have this kind of illness, thus the need to increase the level of knowledge and awareness of the people concerning this malady. The objective of this study is to examine the level of awareness and knowledge of oral cancer of the city of Jeddah in Kingdom of Saudi Arabia. A questionnaire was used to collect data from a random sample of 400 people. The questionnaire included 7 questions pertaining to knowledge about oral cancer. IBM SPSS version 22 has been used to analyze the data collected. In this study, we found out that people in Jeddah have a very low level of knowledge and awareness on oral cancer.

[Zohour K. Al-Somali, Hawazin Y. Hefni, Prof. Ghadah Mansour. Awareness and knowledge about oral cancer among people in Jeddah, Saudi Arabia.. Life Sci J 2017;14(8):40-43]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 5. doi:10.7537/marslsj140817.05.

 

Keywords: oral cancer, oral health, diagnosis, awareness

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Is there any relation between neonatal nucleated red blood cells count and abnormal feto-maternal Doppler flow?

 

Nagham K. Tayeh1; Abdulsattar J. Khalaf 2; Kadhim A. Mohammed3; Samia A. Eleiwe4

 

1Gynecologest Specialist Staff member- Department of Gynecology and Obstetrics, Fatima Al-Zahraa Administrative hospital, Baghdad, Iraq.

2Anesthetist and Intensive Care specialist, Sheikh Zayed General Administrative hospital, Baghdad, Iraq.

3 Pediatrician Specialist, Fatima Al-Zahraa Administrative hospital, Baghdad, Iraq.

4Faculty member- Department of Anatomy, Histology and Embryology, College of Medicine, Al- Mustansiriyah University, Staff member at Department of Gynecology and Obstetrician, Al- Khadhraa Private Hospital Baghdad, Iraq.

samia_a_eleiwe@yahoo.com

 

Abstract: Background: Perinatal mortality is one of the most important medical subjects in Iraq nowadays. One of the leading causes of this mortality is the perinatal asphyxia. Prediction of perinatal asphyxia is still a matter of controversy, though, there is increasing evidence that hypoxic ischemic injury of neonate may occur during pregnancy rather than labor. Doppler echo study can conclude maternal as well as fetal circulation. Also there is a consideration to use nucleated red blood cells count as a marker of hypoxia. Aim: This study was set to assess the relation of impaired fetal Doppler studies, neonatal nucleated red cell counts and neonatal outcome, because detection of such risk factor; could help in prevention in so far as possible the perinatal mortality in the next pregnancies. Patients and Methods: This retrospective research included reserved data of 136 neonates who were born either by vaginal deliveries or caesarean sections under general anesthesia at Fatima Al-Zahraa Administrative hospital, Baghdad, Iraq; at the period from 1st of August 2015 to the 30th of October 2016. Doppler examination was done at the last week of pregnancy and nucleated red blood cells count was estimated for each neonate immediately after delivery. The neonates were divided into two groups; the 1st group (control group) was consisted of alive neonates with normal Doppler studies (Group I). The 2nd group was consisted of alive neonates having abnormal Doppler studies (Group II), which was divided into 3 subgroups, as the followings: Group IIa: fetuses with abnormal Doppler studies of umbilical artery and/or fetal descending aorta with normal Doppler of maternal uterine artery. Group IIb: fetuses with abnormal Doppler studies of umbilical artery and/or fetal descending aorta and abnormal studies of maternal uterine artery. Group IIc: fetuses with absent or reversed diastolic flow in the umbilical artery and abnormal Doppler studies of maternal uterine artery. Intended data were: intrapartum fetal distress, respiratory distress syndrome, time length at neonatal care unit, nucleated red blood count >8/100 white blood cells. Other data were: gestational age at time of delivery, birth weight, amniotic fluid index, nucleated red blood count in relation to Apgar score at 5 minutes level as well as relation to severity of Doppler abnormalities in each of the 4 groups. Mother information included name, age, parity, blood group, medical history, surgical history, obstetric history, smoking and any medical treatment. Pregnant women who had suspicion of fetal compromise due to any of the following conditions was included at this study (inclusion criteria): preeclampsia, supposed IUGR, chronic hypertension, post maturity, oligohydromnios, history of early pregnancy loss or early neonatal death, antiphospholipid syndrome, abnormal fetal heart readings and chronic smoker. While the maternal exclusion criteria: maternal diabetes, multiple pregnancies, maternal cardiovascular diseases other than hypertension, fetuses with chromosomal or structural anomalies and chorioamnionitis. Modes of delivery at this study were vaginal deliveries or caesarean sections (only with general anesthesia). All data were represented in tables and figures. Results: this study showed that nucleated red cell counts are increased with the higher degree of feto-maternal Doppler abnormalities. Conclusion: Neonatal nucleated red blood cells count as one investigation of neonatal asphyxia has a strong relation with abnormal feto-maternal Doppler flow that might give a prompt clue for doctors and health-staff for direct detection of neonatal asphyxia incidence so as to help in rapid organization of "at high risk fetuses"; consequently, this may assist in declining the occurrence of adverse postnatal deadly products whether in the present or future pregnancies.

[Nagham K. Tayeh; Abdulsattar J. Khalaf; Kadhim A. Mohammed; Samia A. Eleiwe. Is there any relation between neonatal nucleated red blood cells count and abnormal feto-maternal Doppler flow?. Life Sci J 2017;14(8):44-49]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 6. doi:10.7537/marslsj140817.06.

 

Keywords: Neonatal nucleated red blood cells count, Feto-maternal Doppler, Neonatal asphyxia, Neonatal mortality, Apgar score, and RDS.

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Factors Associated With Retained Placenta

 

Faiza Ahmed Andijani

 

Obstetrics and Gynecology Department, Maternity and Children Hospital, Jeddah, KSA

dr.faiza009@hotmail.com

 

Abstract: Objective: To identify the risk factors associated with retained placenta. Material and methods: A retrospective case control study done in Maternity and Children's Hospital, Jeddah for 4 years (1423-1426). All women with singleton delivered pregnancy at gestational age between 26-42 weeks and who had vagiral delivery and had retained placenta were included in the study (case group). All pregnant women before the case were taken as control group. The factors which were looked are: parity, gestational age, induction of dilatation and curettage, spontaneous rupture of membrane, previous history of retained placenta, amount of blood loss, need for blood transfusion and placental weight. Results: There were 138 cases. There were 32 cases with previous dilatation and curettage (D/C) P.098, induction of labor in 7 cases P.008, spontaheous rupture of membrane in 80 cases P.000, 28 cases with previous history of cesarean section (C/S) P.020 parity between 0-4 in 104 cases placental weight 200-600gm in 108 cases and 4 cases with history of retained placenta and 52 cases with preterm labor. Conclusion: These findings could be use developed a predicative procedure for identify high risk case or retained placenta.

 [Faiza Ahmed Andijani. Factors Associated With Retained Placenta. Life Sci J 2017;14(8):50-52]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 7. doi:10.7537/marslsj140817.07.

 

Keywords: Factor Associate Retain Placenta

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Prevalence, Molecular Characterization, Pathogenecity and Antimicrobial susceptibility of Pseudomonas fluorescens isolated from Oreochromis niloticus

 

Amira Alaa El-Dein Omar1*, Eman Moustafa Moustafa1, Etab M. Abo-Remela2,3 And Mohamed Mamdouh Zayed4

 

1Department of Fish diseases and management, Faculty of Veterinary Medicine, Kafr El-Sheikh University, Kafr El-Sheikh governorate, Postal code: 33516, Egypt

2. Department of Bacteriology, Mycology and Immunology, Faculty of Veterinary Medicine, Kafr El-Sheikh University, Kafr El-Sheikh governorate, Postal code: 33516, Egypt.

3Department of Biology, Faculty of Science, Taibah University, Al-Madina Al-Munawarah, Saudia Arabia.

4Department of aquaculture, Faculty of Aquatic and Fisheries Sciences, Kafr El-Sheikh University, Kafr El-Sheikh governorate, Postal code: 33516, Egypt

* amira_vet2007@yahoo.com

 

Abstract: Pseudomonas fluorescensis responsible for high mortalities in Oreochromis niloticus in Egypt. It is one of the most important fish pathogens infecting both fresh and brackish water fish species; containing virulence genes that enhance bacterial pathogenesis in the host. The current study aimed to isolate, identify and characterize Ps. Fluorescens and determination of the seasonal prevale ncein O. niloticus in Kafr El-Sheikh governorate, Egypt, using selective differential medium (Pseudomonas–Fagar), morphological and biochemical tests. Pathogenesis of Ps. fluorescens was checked by experimental infection of O. niloticus together with detection of the extracellular alkaline metalloprotease virulence gene (aprX). The seasonal prevalence of the isolated Ps. Fluorescens strains, revealed that the highest incidence was during the winter season (41.2%), autumn (25.5%), spring (19.6%) and summer (13.7%), respectively. The PCR revealed the presence of the virulence gene (aprX) in the selected Ps. Fluorescens strain which has an important role in the pathogenicity. Ps. fluorescens strains are highly sensitive to Amikacin (96.1%) and highly resistant to Ampicillin and Streptomycin (100%). Moreover, the histopathological studies revealed severe changes in the experimentally infected fish tissues.

[Amira Alaa El-Dein Omar, Eman Moustafa Moustafa, Etab M. Abo-Remela. Prevalence, Molecular Characterization, Pathogenecity and Antimicrobial susceptibility of Pseudomonas fluorescens isolated from Oreochromis niloticus. Life Sci J 2017;14(8):53-61]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 8. doi:10.7537/marslsj140817.08.

 

Key words: Antibiogram, Aprx, Pathogenecity, Pseudomonas fluoroscens, Freshwater fish

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Prevalence and Outcome of Adolescence Pregnancy Over 17 years at King Abdul-Aziz University Hospital Jeddah Saudi Arabia.

 

Dr. Ettedal Al Jahdali

 

Department of Obstetrics and Gynecology, Faculty of Medicine, King Abdulaziz University Hospital, Jeddah

dr.aljahdali@hotmail.com

 

Abstract: Background: The growing number of teenage pregnancy cases apparently emerged as a global health problem in present generation. Pregnancy in early age is associated with poor maternal weight gain, premature birth, gestational hypertension, anemia, and STDs. It is one of the major cause of increased maternal and child mortality. Objectives: To determine the prevalence of adolescence pregnancy and associated percentage of mortality and morbidity among pregnant females at King Abdulaziz University Hospital (KAUH) Jeddah, Saudi Arabia. Materials and Methods: A chart review study that included (N=3,234) was conducted through data collection for all pregnant adolescents’ chart review who delivered in King Abdulaziz University Hospital (KAUH) Jeddah, Saudi Arabia from January 2000 until December 2016. Results: the number of adolescent deliveries and percentage over the years was decreasing in the rate from (5.01%) in 2000 to (2.7%) in 2016. The majority (96%) were late adolescence (16-19y), 73.3% were booked for pregnancy care, 51.2% were Saudi, Two thirds (66.3%) were primigravida, the majority (90%) reported full term without abortion history and (99.5%) had normal infants. Conclusion: The prevalence of adolescence pregnancy decreased over the years of the study.Despite the rampant worldwide issue brought about by the risks of adolescence t pregnancy, this study revealed that the mortality and morbidity rates of mothers and their child under this age group is not very high.

[Ettedal Al Jahdali. Prevalence and Outcome of Adolescence Pregnancy Over 17 years at King Abdul-Aziz University Hospital Jeddah Saudi Arabia. Life Sci J 2017;14(8):62-66]. ISSN: 1097-8135 (Print) /ISSN: 2372-613X (Online).http://www.lifesciencesite.com. 9. doi:10.7537/marslsj140817.09.

 

Keywords: Adolescent, pregnancy, maternal, mortality, morbidity

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Some basic and hormonal profile for selection of short distance swimmers

 

Hussein Dorrie Abaza

 

Dean of the Faculty of Physical Education, Benha University, Egypt.

Hussein.abaza@fped.bu.edu.eg 

 

Abstract: The aim of this study was to investigate some basic and hormonal profiles for selection of short distance swimmers. It is hypothesized that the basic and hormonal profiles of short distance swimmers might help in the sound selection of short distance swimmers in Egypt. The Researcher used the descriptive method for a sample of a high level short distance swimmers participating in the study, from different clubs in Cairo (aged 17.8y) height (176.8 cm), weight (73.8 kg). Basic variables of heart rate, lactate, respiratory rate and vital capacity were determined, together with hormonal profile of growth hormone, testosterone, cortisol, T3, T4 using ELISA technique in the peripheral blood. The results indicated that basic variable determined were better results compared to the average levels of normal person, also the mean hormones were exceeding the average levels of normal concentrations. It may be concluded that the basic variables (heart rate, lactate, respiratory rate and vital capacity, also metabolic and growth hormone detected might be a good indicators for selection of short distance swimmers in Egypt.

[Hussein Dorrie Abaza. Some basic and hormonal profile for selection of short distance swimmers. Life Sci J 2017;14(8):67-72]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 10. doi:10.7537/marslsj140817.10. 

 

Keywords: Basic, hormonal profile, short distance swimmers, selection.

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Ferroresonance Suppression by Increasing the Capacitance of a Transmission Line

 

Mohamed Zarouan

 

Department of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia

e-mail: mzarouan@kau.edu.sa

 

Abstract: An electrical network, like any nonlinear system, can have a different steady state response for specific initial conditions basin. An additional battery of capacitors, to be inserted between each phase and the ground, allows to modify the global capacitance of the electrical network which will ensure that the system lies in a domain where the response converges to a unique value. This domain has been determined according to the criterion of stability of Borne and Gentina, applied to the generalized thin arrow form of the power network’s state matrix, hereby providing an easy-computable alternative to the complex continuation method.

[Mohamed Zarouan . Ferroresonance Suppression by Increasing the Capacitance of a Transmission Line. Life Sci J 2017;14(8):73-80]. ISSN: 1097-8135 (Print) / ISSN: 2372-613X (Online). http://www.lifesciencesite.com. 11. doi:10.7537/marslsj140817.11.

 

Keywords: electrical power network, Configuration at risk, Coupled phases, Continuation method, Uniqueness of the response, Arrow matrix

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The following manuscripts are presented as online first for peer-review, starting from August 3, 2017. 

All comments are welcome: editor@sciencepub.net or contact with author(s) directly.

For previous issues of the Life Science Journal, click here. http://www.lifesciencesite.com

Emails: editor@sciencepub.net; sciencepub@gmail.com; lifesciencej@gmail.com

 Marsland Press, PO Box 180432, Richmond Hill, New York 11418, USA. 347-321-7172

 

2017. Marsland Press, Zhengzhou University

 

 

 

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2017. Marsland Press, Zhengzhou University