June – September 2020 Edition

International Journal of Academic Scientific Research

ISSN: 2272-6446 Volume 8, Issue 2 (June- September 2020)

All listed papers are published after full consent of respective author or co-author(s).

For any discussion on research subject or research matter, the reader should directly contact to undersigned authors.



Marites Duquinal, Mark Angelo C. Reotutar, Rhosechelle A. Riboroso, Restituto M. Llagas Jr. & Christian Domondon

Abstract: This study aimed to assess the needs of the stakeholders in Lao-ingen Elementary School of Sto. Domingo, Ilocos Sur. Based on the findings of the study, all the three groups of respondents need trainings on technology transfer for parents; research capability, teaching methodologies and instructional materials development for teachers; numeracy and other mathematics-related activities for the pupils. Willingness to support on the possible activities was shown by the respondents which is to be implemented by the researchers. As consequence of the Needs Assessment Survey, the researchers crafted a proposed 3-Year Development Plan. In the light of the findings and conclusions, it is recommended that an immediate response should be done by the implementing entities to cater the needs of the beneficiaries.

[Download]                                                                   Pp 01-11


Synthesis, characterization and biological activity of Some Schiff’s Bases from the Reaction of 4,4′-DiaminoBenzanilide with Nitrobenzaldehyde Derivatives

Abdulkader almarrawi, M. Y. Zein Eddin, N. A. Aljasem

Abstract: Four double Schiff’s bases were prepared from the reaction of 4,4′-diaminobenzanilide with some aldehydes derivatives in ethanol under reflux condition. Schiff bases melting points determined and their structures were identified using various spectroscopic methods. Azomethine (-CH=N-) group band appeared in infrared spectrum around 1620cm-1 and secondary amine (-NH-) group band appeared around 3200cm-1. Mass spectra of these compounds showed molecular weight peaks at M-1.

[Download]                                                                   Pp 12-20


Benefit of Placenta Accreta Equation as predictor of placental invasion in patients with Placenta Previa

Asaad houli, Alhamoud,Abdul Mahdi, Alaa Kayali


Objective: We sought to apply a standardized evaluation of ultrasound findings and maternal characteristics as parameters for the prediction of placental invasion in a high-risk population. Study design: This was a prospective review of gravidas  with or without prior cesarean delivery who received an ultrasound diagnosis of placenta previa or low-lying placenta in the second and third trimester at Aleppo University Hospital for Obstetrics & Gynecology from 2017 through 2019. Sonographic images were reviewed by an investigator blinded to pregnancy outcome and sonography reports. Parameters assessed included type and location of placenta previa, loss of retroplacental clear zone, irregularity and width of uterine-bladder interface, smallest myometrial thickness, presence of lacunar spaces, bridging vessels, and measure the mean pulsatility index of uterine artery. Maternal characteristics included maternal age, number of prior cesarean delivery, abortion, parity, the story of previous combined deliveries (normal and cesarean),  and severe vaginal bleeding and/or preterm labor before 34 week. Diagnosis of placental invasion was based on histologic confirmation. Results: Of 196 gravidas who met inclusion criteria, 26 (13.3%) had invasion confirmed on hysterectomy specimen. All sonographic parameters were associated with placental invasion (P < .001). Constructing a receiver operating characteristic curve, the combination of ultrasound parameters and characteristics variables , yielded an area under the curve of 0.996(p˂.001). Using Discriminant Analysis, a predictive equation was generated from 12 parameters, termed the “Placenta Accreta Equation.” The equation was significant      ( p ˂ .000), The overall accuracy, sensitivity, specificity, and positive and negative values of PAE were 91%, 100%, 89%, 59.1%, 100%, respectively. Conclusion: Assignment of the Placenta Accreta Equation may be helpful in predicting individual patient risk for morbidly adherent placenta.

[Download]                                                                   Pp 21-32


Numerical Solution of Singular Boundary Value Problems UsingGenetic Algorithm

Bachir Nour Kharrat, Mohamed Khatib and Shaza Alturky

Abstract: In  this  paper,  we  proposed  expanding  the  application  of  genetic  algorithm for  solving  some nonlinear  singular  boundary  value  ​​problems arising in physiology applications which it  is  difficult  to  solve  this type of  problems  because  of  a  singularity  at  the  boundary  point x= 0.  Genetic Algorithm is one of the evolutionary algorithms that uses principles inspired by natural population genetics to evolve solutions to problems and mimics Darwin’s theory of biological evolution,  whereby  the  fitness  function  (error  function)  is  represented by the  sum  of  mean  square  errors  of  the  nonlinear  differential  equation  and  its  boundary  conditions.  The  approximate  solution  can  be  expressed  as  a  polynomial  of  n  degree, then  the  genetic  algorithm  is  used  to  find  the  optimal  coefficients  of  a  polynomial  that  minimize the  fitness  function.  Numerical  examples  are  given  to  show  the  efficiency  and  accuracy  of  the  proposed  algorithm, our  results  are also  compared  with  other  existing  results obtained by different methods such as Taylor’s series method, homotopy analysis method and Adomian decomposition method.

[Download]                                                                   Pp 33-39


Improving the Blood Flow in the Coronary Artery Using the Conical Stent

Mohammad Youssef Al-Hashem, Mahmoud Malhis, Mohammad Marof Abo Alkaracy

Abstract: The aim of this research is to study the effect and efficiency of using conical stent in the coronary artery and comparing the results with the cylindrical stent. The following factors: Oscillatory Shear Index (OSI), Time-Averaged Wall Shear Stress (TAWSS) and Wall Shear Stress Gradient (WSSG) have been considered. The traditional cylindrical stent currently used has a consistent diameter, which does not match the physiological change of the coronary artery. On the contrary, the conical stent used in this study is consistent with the physiological change of vascular diameter. However, the effect of the conical stent implantation on the coronary hemodynamics remains unclear. The coronary artery with 80% stenosis and two stent models were drawn using SolidWorks software. All models were exported to and solved using computational fluid dynamics (CFD) software. The results of hemodynamic indicators including oscillatory shear index OSI, Time-Averaged wall shear stress TAWSS and wall shear stress gradient WSSG were improved by either the cylindrical or the conical stent implantation. However, it was noted that after installing the conical stent the oscillatory shear index value was very low (lower than 0.008) while it was 0.5 in some areas in the cylindrical stent case. The TAWSS values in the conical stent was within the natural range 0.7-6 Pascal (Pa) while it was high in some areas in the cylindrical stent case about 60 Pa. The wall shear stress in the conical stent case becomes more uniform along the stent, without any major change in direction or value in comparing with the cylindrical stent case.

[Download]                                                                   Pp 40-49


Antimicrobial Activity Of Crude Extracts Of  Alchemilla Vulgaris and Salvia Officinalis L. Against Some Bacterial Strains Causing Food Poisoning Diseases

Samah Seffo

Abstract: Antimicrobial activity of different extracts of leaves of Alchemilla Vulgaris and Salvia Officinalis L. were investigated against Bacillus cereus, Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa using agar disc diffusion technique. the antimicrobial activity of leaves of Alchemilla Vulgaris and Salvia Officinalis L were screened by used different extracts[MeOH; MeOH 70% EtOH ; EtOH70% ]. The Results showed that the methanolic extracts have the highest effective against  S. aureus respectively  E. coli, with MIC ranged from 1.25 to 3 mg/ml and MBC of 3.0 to 6.25 mg/ml,  while the methanolic70% extracts have the highest effective against  B. cereus, with MIC ranged from 2.25 to 4.5 mg/ml and MBC of 5.0 to 10.25mg/ml but  P. aeruginosa was very resistant to all extracts expect methanolic and methanolic70% extracts of the leaves of Salvia Officinalis L. which was effective against P. In general, the different extracts of leaves of Salvia Officinalis L. were more effective against the tested bacterial than the different extracts of leaves of Alchemilla Vulgaris. These plant extracts which proved to be potentially effective can be used as natural alternative preventives to control food poisoning diseases and preserve food stuff avoiding healthy hazards of chemically antimicrobial agent applications.

[Download]                                                                   Pp 50-55


Study The Optical Properties of Quantitative Points of Manganese (Mn)-Infected CdSe Prepared by Sol-gel

Aya Alhamzeh, Mustafa Afyoni, Doha Rajab

Abstract: We prepared one of the selenium salts in order to use it in the preparation of cdse selenide cadium in the chemical way and alloy it in a different proportions of manganese Mn and then we deposited cdSe manganese-alloyed on glass slides and we did a Structural characterization of it XRD and studied the light properties of it (Abs-Pl)& (UV-VIS)Samples of CdSe cadmium selenide (-manganese-Mn were prepared bySol-Gel method (5%, 3%, 1%) and deposited on glass substrates in order to obtain thin films, by taking the absorption spectrum and found that the samples were of high absorbency Within the domain (300-500) nm Energy gaps for pure and similar thin CdSe films were measured using visible UV spectroscopy, and their value was Within the range (2-5) ev. From a study of fluorescence spectroscopy, it was found that the best excitation wavelength was at λ=340nm. It would give the best fluorescence spectrum with high intensity and wide pulse starting from (450-500) at Wavelength of λ= 480nm, indicating that the samples are subject to stux transitions. Our aim of research is to study the structural and optical properties of cdse and the effect of its alloy with manganese(mn).

[Download]                                                                   Pp56-67


RFID tag with encoded personal information for forensic use, located under a dental filling, a crown or on a dental prosthesis

Jesús M. González-González, Pablo J. González-Rubio


Background: an RFID microchip is an integrated identification circuit that can be implanted subdermally in the body of a living being. The objective of this work is to study the possibility of using a personal identification microchip under a dental filling, a metal-porcelain crown or on a dental prosthesis, for forensic purposes. Material and methods: labels and marks used in human or animal forensic identification was reviewed. 5 * 5mm Micro FPC NFC Ntag213 programmable adhesive RFID tags and Proxmark 3 Easy were used. Also two natural human teeth, a metal-porcelain crown and an acrylic resin prosthesis where to place the RFID tag. Results: there are different ways to identify a dental prosthesis. 131 characters of personal information can be written and read on this RFID tag on the teeth and on the acrylic prosthesis. Under the metal-ceramic crown we could not do the same. Conclusions: the RFID tag located under a filling in a tooth or embedded in an acrylic resin prosthesis is useful for storing encoded personal information and this is of great forensic interest. There are limitations when using this microchip in humans due to lack of privacy and adequate legislation is necessary for its use

[Download]                                                                   Pp68-75