Preferred Language
Articles
/
ijp-652
Optical and A.C. Electrical Properties for Polypyrrole and Polypyrrole/Graphene (ppy/gn) Nanocomposites
...Show More Authors

In this work, chemical oxidation was used to polymerize conjugated polymer "Polypyrrole" at room temperature Graphene nanoparticles were added by in situ-polymerization to get (PPY-GN) nano. Optical and Electrical properties were studied for the nanocomposites. optical properties of the nanocomposites were studied by UV-Vis spectroscopy at wavelength range (200 -800 nm). The result showed optical absorption spectra were normally determined and the result showed that the maximum absorbance wave length at 280nm and 590nm. The optical energy gap has been evaluated by direct transition and the value has decreased from (2.1 eV for pure PPy) to (1.3 eV for 5 %wt. of GN). The optical constants such as the band tail width ΔE was evaluated, the value of ΔE for pure PPy was (0.0949eV) while for 5 wt. % of GN it was (0.5156 eV), It has been observed that the Urbach tail for pure PPy was smaller than that for PPy/GN nanocomposites and it increase as GN concentration increases. The A.C electrical conductivity at range of frequency (103Hz-106Hz) was increased by increasing the frequency and GN concentration about four order of magnitude. The s value was about (0.653-0.962) which means that the mechanism of conductivity is correlated hopping mechanism (C. H. P.). The dielectric constant and dielectric lose were determined and found to decrease with increasing frequency.

Crossref
View Publication Preview PDF
Quick Preview PDF
Publication Date
Thu Mar 30 2017
Journal Name
Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)
Synthesis of New Opioid Analgesic Peptide Analogues to Enkephalin (Leucine- and Methionine-Enkephalin)
...Show More Authors

A small number of researches were done in the design and synthesis of enkephalin analogues that are able to resist degradation effect of proteolytic enzymes with good bioavailability and half-lives.Through studying structure activity relationships we tried to incorporate phthalyl group, tryptophan and lysine amino acids in different positions in the basic backbone structure of the naturally occurring opioid Leu5- and Met5- enkephalin, in the hope that such insertion of these amino acids could induce interesting addition in the biological activity of these analogues with enhancement of their bioavailability, in addition to decrease side effects as addiction liability.

These synthesized peptides are:

    ... Show More
    View Publication Preview PDF
    Crossref
    Publication Date
    Thu Mar 30 2017
    Journal Name
    Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)
    Antiplatelts Activity of Vitamin E in Relation to Dose and Duration of Therapy
    ...Show More Authors

               Vitamin E, having the well known antioxidant activity  through scavenging free radicals Ùˆ it occurs in several  isomeric forms , these isomers have relatively different functions . One of these actions is related to its ability to inhibit platelets aggregation and hence thrombosis. The present study included a total number of apparently healthy  62 males . 11of them served as standard group , treated  with 100 mg aspirin /day for more than one month . Another 31 subjects were randomly grouped into 5 groups that received different daily doses of α – tocopherol : 400 IU , 800 IU and 1200 IU for  2-6 months.The remainder ( 20 ) subjects served

    ... Show More
    View Publication Preview PDF
    Crossref
    Publication Date
    Thu Dec 06 2018
    Journal Name
    Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)
    Effects of Vitamin E and Q10 Supplementation against Doxorubicin-Induced Neurotoxicity in Rats
    ...Show More Authors

    View Publication Preview PDF
    Scopus (8)
    Crossref (5)
    Scopus Crossref
    Publication Date
    Sun Feb 24 2019
    Journal Name
    Iraqi Journal Of Physics
    Construction and performance study of a solar - powered hybrid cooling system in Iraq
    ...Show More Authors

    The systems cooling hybrid solar uses solar collector to convert solar energy into the source of heat for roasting Refrigerant outside of the compressor and this process helps in the transformation of Refrigerant from the gas to a liquid state in two-thirds the top of the condenser instead of two-thirds the bottom of the condenser as in Conventional cooling systems and this in turn reduces the energy necessary to lead the process of cooling. The system cooling hybrid use with a capacity of 1 ton and Refrigerant type R22 and the value of current drawn by the system limits (3.9-4.2A), the same value of electric current calculated by the system are  Conventional  within this atmosphere of Iraq, and after taking different readings

    ... Show More
    View Publication Preview PDF
    Crossref
    Publication Date
    Mon Dec 25 2017
    Journal Name
    Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)
    Knowledge, Attitudes and Barriers Towards Breast Cancer Health Education Among Iraqi Community Pharmacists
    ...Show More Authors

    With the increasing prevalence of breast cancer among female internationally, occupies about 25% of all cases of cancer, with a measured 1.57 million up to date cases in 2012. Breast cancer has turn a most warning to health of female in Iraq, where it is the major cause of death among women after cardiovascular diseases, with a mortality rate of 23% related cancer. Recently there is a crucial requirement to include community pharmacists in health elevation activities to support awareness and early diagnosis of cancer, specially breast cancer. The aim of this study is to assess knowledge, attitude and perceived barriers amongst Iraqi community pharmacists towards health promotion of breast cancer. This study is cross sectional research. A

    ... Show More
    View Publication Preview PDF
    Crossref (1)
    Crossref
    Publication Date
    Wed Nov 01 2023
    Journal Name
    Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)
    Possible Effects of Vitamin D3 and Levofloxacin on Selected Hematology Parameter of Rats
    ...Show More Authors

    Vitamin D is a fat-soluble vitamin with antioxidant and DNA protecting properties , Levofloxacin is a member of the fluoroquinolone drug class, Its broad-spectrum bactericidal effect affects both Gram-positive and Gram-negative bacteria.

    The goal of the study is to analyze the haematology analysis in rats received levofloxacin and show the preventive impact of vitamin D3 by analyzing the haematology parameters: packed cell volume (PCV), mean corpuscular hemoglobin concentration(MCHC),haemoglobin (HB), red blood cell (RBC), mean corpuscular volume (MCV),meancorpuscular haemoglobin(MCH), WBC ,differential WBC, and Platelets.

    The study included 42 rats divided into 6 groups each group 7 rats. group I negative control

    ... Show More
    View Publication Preview PDF
    Scopus Crossref
    Publication Date
    Wed Mar 29 2017
    Journal Name
    Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)
    Investigation and Comparative Study Among Various Methods of Contraception Used in Erbil City
    ...Show More Authors

    The objective of this study was to investigate and compare among five different methods of contraception including combined oral contraceptive pills (COC), Depot medroxyprogesterone acetate (DMPA), copper Intrauterine contraceptive device (IUCD), vaginal spermicides and male condom used in Hawler City through estimate of their effect, relative failure rate, percentage of use, adherence and compliance and adverse effects of each contraceptive method. In order to reach to these aims, a retrospective study was conducted in Hawler City in Azadi Health Care Center over a period of 6 months from 22th November, 2010 to 15th May, 2011 during which data collection and subjects follow up for 3 months had been achieved. A conv

    ... Show More
    View Publication Preview PDF
    Crossref
    Publication Date
    Thu Nov 01 2018
    Journal Name
    Iraqi National Journal Of Nursing Specialties
    Evaluation of Knowledge and Practices of Nurses in Orthopedic wards concerning femur Fractures
    ...Show More Authors

    Objective: To evaluate the knowledge and practices of nursing staff at the orthopedic wards relative to
    nursing care presented to patients with femur fractures.
    MethodologyThe sample consisted of (50) staff nurses was selected out of orthopedic wards of five
    teaching hospital in Baghdad city for duration 15th Nivember 2001-15th of January 2002.
    For the purpose of data collection, two instruments were constructed. First, observational
    checklist for the practices measurements and second, knowledge test for the evaluation of the nurse
    knowledge. Such construction was employed through literature review and validity expert’s responses.
    Data were analyzed through the application of descriptive data analysis (frequency, p

    ... Show More
    View Publication Preview PDF
    Publication Date
    Tue Sep 01 2020
    Journal Name
    Iraqi Journal Of Physics
    Biosynthesis of silver nanoparticles using Thyme Vulgaris leaves extract and its Antibacterial activity
    ...Show More Authors

    In the current research, an eco-biosynthesis method for synthesizing silver nanoparticles (AgNPs) is reported using thymus vulgaris leaves (T. vulgaris) extracts. The optical and structural properties of the nanoparticles is determined using UV-visible, x-ray diffraction (XRD) and field emission scanning electron microscope (FESEM). In addition, the synthesis factors such as the temperature, the molar ratio of silver nitride and thymus vulgaris leaves extract have been investigated. The XRD pattern presented higher intensity for the five characteristic peaks of silver. FESEM images for same samples indicated that the particle size was distributed between 24-56 nm. In addition, it’s observed the formation of some aggregated Ag particles

    ... Show More
    View Publication Preview PDF
    Crossref (5)
    Crossref
    Publication Date
    Sun Mar 07 2010
    Journal Name
    Baghdad Science Journal
    Identification and Purification of Cholera Like Toxin from Environmental Isolate of Vibrio cholerae
    ...Show More Authors

    The presence and prevalence of V. cholerae were investigated in forty five water samples collected from different locations of Tiger River/ Baghdad city. Twenty one isolates were isolated by adopting a simple isolation techniques. The final identification revealed that only three isolates were confirmed as V. cholerae. They were named 1J, 1R and Dial 131 which are all serogrouped as non-O1. Toxin Coregulated Pili (TCP) and heat labile enterotoxin (LT) were determined in only the environmental isolate 1J while non of the isolates produced heat stabile toxin (ST). The purification scheme was improved, few steps were adopted to include back extraction of ammonium sulfate, saturation between 80-20%, desalting through Sephadex G25, and gel filt

    ... Show More
    View Publication Preview PDF
    Crossref