Preferred Language
Articles
/
bsj-2392
Detection, purification and characterization of a bacteriocin produced by Bacillus subtilis NK16 exhibits a significant antimicrobial activity against clinical Staphylococcus spp.
...Show More Authors

Bacteriocin is an important antimicrobial peptide that can be used in industrial and medical fields due to its characteristics of antibacterial, food preservation and anticancer activities. Fifty isolates of Bacillus sp were collected from different soil samples which were already recognized via morphological and biochemical identification process. The isolates were screened for bacteriocin production effective against Staphylococcus spp in order to select the highest producing isolate. The isolate NK16 showed the maximum bacteriocin production (80 AU/ml) which was further characterized as Bacillus subtilis NK 16 through using API identification system (API 20E and API 50CHB). Then, next step was to detect the optimal conditions for maximum bacteriocin production which were found to be brain-heart infusion broth as the best production medium with pH 6, 30oCand 2% inoculum size. Bacteriocin was partially purified by precipitation with ammonium sulphate and then separation with sephadex G-150 gel filtration. The specific activity of the resulted partial purified bacteriocin was increased to 853.33 AU/mg with 38 fold purification and 24% yield. The study of bacteriocin characterization revealed that the activity of bacteriocin was stable after 10 min at 20, 30, 40oC whereas 50% of the bacteriocin activity was lost after exposure to 50oC and decreased to approximately 20 AU/ml at 60,70 and 80 Co. In addition, bacteriocin activity showed stability at pH 6 and 7 for 30 min while it was decreased by approximately 50% at pH 5 and 8, and completely inhibited at pH 4 and 9. On the other hand, the investigation of mode of action showed that bacteriocin has a bactericidal activity. Antimicrobial activity tests of the partial purified bacteriocin displayed a significant activity against most clinical Staphylococcus aureus and Staphylococcus epidermidis isolates, whereas it was less effective against Staphylococcus saprophyticus isolates.

Scopus Crossref
View Publication Preview PDF
Quick Preview PDF
Publication Date
Tue Aug 15 2023
Journal Name
Al-academy
The impact of the flipped classroom strategy on developing the communication skills in classes among art education students
...Show More Authors

The technology and modern social communication medias have contributed to changing many of our concepts about education to a large extent; these technological advancements have created new challenges for the Instructor of course, but on the other hand it did provided him with expressive media, models and strategies that the old methods cannot fulfill, including the flipped classroom strategy, which is one of the modern technical solutions and in it's optimal use it can correct the weakness of the traditional education and can develop the communication skills as a whole among the students, in order to create a positive, active and interactive student.
The current research contained - four chapters: the first one included the methodolog

... Show More
View Publication Preview PDF
Crossref
Publication Date
Sun Mar 15 2020
Journal Name
Al-academy
Media Coverage of Yazidi Women in the Iraqi Press Analytical Study in Al-Mada Newspaper: غادة حسين العاملي
...Show More Authors

This research reveals the treatment mechanisms followed in the media for covering the topic of displacement and captivity of Yazidi in the Iraqi press, through studying all the publishing in one of the Iraqi newspapers concerning the research subject. The research problem is in the following questions:

  • What are the journalistic arts that are tackled by the newspaper concerning the subject of the Yazidi women?
  • What are the editing forms for the model of the press subjects that have been employed about the event and what are its sources?
  • What are the highlighting means used in presenting the subjects within the journalistic arts?
  • What are the i

... Show More
View Publication Preview PDF
Crossref
Publication Date
Wed Sep 21 2022
Journal Name
Journal Of Planner And Development
Evaluating the Potentials of Individual Lending Instructions (in Housing Fund Law) to Support Housing Finance Policies in Iraq.
...Show More Authors

Iraqi economy has grown rapidly. Iraqi citizen, therefore, should be very much involved with the comprehensive development after his long patience. Such development should begin with him and his family to get the housing commodity, which is indeed not a cheap one.                                                          

  In this regard, the Iraqi legislator drew attention to the necessity of issuing housing finan

... Show More
View Publication Preview PDF
Publication Date
Wed Aug 30 2023
Journal Name
Al-kindy College Medical Journal
Assessment of Thyroid Functions in Multiple Sclerosis Patients Treated with Disease Modifying Therapies: Thyroid Functions in Multiple Sclerosis
...Show More Authors

Background:

Multiple sclerosis is a chronic disease believed to be the result of autoimmune disorders of the central nervous system, characterised by inflammation, demyelination, and axonal transection, affecting primarily young adults. Disease modifying therapies have become widely used, and the rapid development of these drugs highlighted the need to update our knowledge on their short- and long-term safety profile.

Objective:

The study aim is to evaluate the impact of disease-modifying treatments on thyroid functions and thyroid autoantibodies with subsequent effects on the outcome of the disease.

Materials and Methods:

A retro prospective study

... Show More
View Publication Preview PDF
Scopus (4)
Crossref (2)
Scopus Crossref
Publication Date
Mon Dec 01 2008
Journal Name
Saudi Medical Journal
Treatment of perniosis with oral pentoxyfylline in comparison with oral prednisolone plus topical clobetasol ointment in Iraqi patients.
...Show More Authors

AA Noaimi, BM Fadheel, Saudi medical journal, 2008 - Cited by 25

View Publication
Publication Date
Wed Jun 20 2018
Journal Name
Al-academy
The effect of CORT educational program on creative thinking for the secondary school students in art education subject
...Show More Authors

The current research aims to identify (the effect of CORT program on creative thinking for middle school students in the art education history of ancient art subject).

     The research society continue of the5th of scientific students in ALsadreen secondary school of excellence which related of the Directorate of Education al-sader city, for the academic year (2015/2016), The sample was (35) students for each of the two groups (experimental and control). The equivalence between the research groups was carried out in the IQ variable, the age and the level of the father and mother.

     The researcher used the experimental method of partial control and the post-test. If the course of

... Show More
View Publication Preview PDF
Crossref
Publication Date
Fri Sep 01 2023
Journal Name
Al-khwarizmi Engineering Journal
Removal of Ciprofloxacin Antibiotic from Synthesized Aqueous Solution Using Three Different Metals Nanoparticles Synthesized Through the Green Method
...Show More Authors

This study investigates the possibility of removing ciprofloxacin (CIP) using three types of adsorbent based on green-prepared iron nanoparticles (Fe.NPs), copper nanoparticles (Cu. NPS), and silver nanoparticles (Ag. NPS) from synthesized aqueous solution. They were characterized using different analysis methods. According to the characterization findings, each prepared NPs has the shape of a sphere and with ranges in sizes from of 85, 47, and 32 nanometers and a surface area of 2.1913, 1.6562, and 1.2387 m2/g for Fe.NPs, Cu.NPs and Ag.NPs, respectively. The effects of various parameters such as pH, initial CIP concentration, temperature, NPs dosage, and time on CIP removal were investigated through batch experiments. The res

... Show More
View Publication Preview PDF
Scopus (3)
Crossref (3)
Scopus Crossref
Publication Date
Fri Mar 01 2019
Journal Name
Al-khwarizmi Engineering Journal
Design of PV Solar Energy Generator using MPPT Technique to Control Single Input/Multiple Outputs (DC-DC) Converter
...Show More Authors

The paper presents the design of a system consisting of a solar panel with Single Input/Multiple Outputs (DC-DC) Buck Converter by using Simulink dialogue box tools in MATLAB software package for simulation the system. Maximum Power Point Tracking (MPPT) technique depending on Perturb and Observe (P&O) algorithm is used to control the output power of the converter and increase the efficiency of the system. The characteristics of the MSX-60 PV module is chosen in design of the system, whereas the electrical characteristics (P-V, I-V and P-I curves) for the module are achieved, that is affected by the solar radiation and temperature variations. The proposed design module has been found to be stable for any change in atmospheric tempera

... Show More
View Publication Preview PDF
Crossref (2)
Crossref
Publication Date
Fri Dec 31 2021
Journal Name
Iraqi Journal Of Laser
Hong-Ou-Mandel Dip Measurements of Two Independent Weak Coherent Pulses for Free Space Quantum Key Distribution Systems
...Show More Authors

Preparation of identical independent photons is the core of many quantum applications such as entanglement swapping and entangling process. In this work, Hong-Ou-Mandel experiment was performed to evaluate the degree of indistinguishability between independent photons generated from two independent weak coherent sources working at 640 nm. The visibility was 46%, close to the theoretical limit of 50%. The implemented setup can be adopted in quantum key distribution experiments carried out with free space as the channel link, as all the devices and components used are operative in the visible range of the electromagnetic spectrum.

View Publication Preview PDF
Publication Date
Tue Jun 15 2021
Journal Name
Al-academy
The design of the scene according to the interactive theory in the Iraqi theater show: دريد هاشم شكور
...Show More Authors

The theater has live foundations that interact with all symbols and signs. It has never been far from these innovations and developments in the manner of dealing with those symbols and how and the extent of their effects on society through the world of technology because the theatrical performance contributes to its structure, a technique that is employed by designers in various technologies such as ( Music, lighting and sound effects engineer, as well as fashion designer, architecture, and modeling designer). The theater today also relied on various interactive techniques represented in the use of body language and a sign in order to communicate the meaning by forming movements, singing and dancing in order for the recipient to interact

... Show More
View Publication Preview PDF
Crossref