Some types of the fungus Aspergillus were isolated from some hospitals in the city of Baghdad (Imam Ali Hospital and Sadr General Hospital). The samples were taken by Transport media at a rate of three replicates of each place isolated from samples from different places within the hospital (waste, baths, the sick beds, corridors and room floors) for the purpose of isolating and diagnosing the fungus on the Czapeck Dox Agar media. It was noticed that the spread rate of fungus Aspergillus was 70% compared to other species that have emerged during the isolation process of the Sabouraud's Dextrose Agar media. The species A.niger (56.25%) was considered the most common type of fungus visible during the isolation process of the Imam Ali Hospital, and the percentage of appearance in the Sadr General Hospital was 38.8%. The results of planting all types of fungus Aspergillus isolated in the study by the Hair Biting Technique (HBT) have shown the ability of fungus to consume keratin in hair. As for the ability of fungus to blood analysis, the results showed the ability of species A.niger and A.terrus for blood analysis. After isolation and diagnosis dosages of fungus extract were given to white males mice at a rate of 30 mice divided into three groups each group of ten mice. The first group is a control group; the second group is given Aspergellus niger extract (2 mil/kilo); and the third group was given the Aspergellus terrus extract (2 mil/kilo). The experiment lasted 30 days and the dosages were given orally. The results of the hormonal analysis of liver enzymes (GOT, GPT, ALP) and kidney salts and testosterone hormon showed that there are significant effect of both types of fungus Aspergillus on those enzymes.
This paper aims to study the effect of circular Y-shaped fin arrangement to improve the low thermal response rates of a double-tube heat exchanger containing Paraffin phase change material (PCM). ANSYS software is employed to perform the computational fluid dynamic (CFD) simulations of the heat exchanger, including fluid flow, heat transfer, and the phase change process. The optimum state of the fin configuration is derived through sensitivity analysis by evaluating the geometrical parameters of the Y-shaped fin. For the same height of the fins (10 mm), the solidification time is reduced by almost 22%, and the discharging rate is enhanced by almost 26% using Y-shaped fins compared with the straight fins. The results demonstrate that the sol
... Show More
(63)
(19)
<span lang="EN-US">The fundamental of a downlink massive multiple-input multiple-output (MIMO) energy- issue efficiency strategy is known as minimum mean squared error (MMSE) implementation degrades the performance of a downlink massive MIMO energy-efficiency scheme, so some improvements are adding for this precoding scheme to improve its workthat is called our proposal solution as a proposed improved MMSE precoder (PIMP). The energy efficiency (EE) study has also taken into mind drastically lowering radiated power while maintaining high throughput and minimizing interference issues. We further find the tradeoff between spectral efficiency (SE) and EE although they coincide at the beginning but later their interests become con
... Show More
(3)
This work studies developing ultrafiltration (UF) membranes using organic and inorganic additives to remove organic dyes at UF conditions with high effectiveness. Flat sheet (18 wt%) polyvinylidene fluoride (PVDF) membranes were prepared via phase inversion and then developed by adding 6 wt% polyethylene glycol (PEG) as a pore former. Furthermore, the PVDF/PEG membranes were developed by embedding tin oxide nanoparticles (SnO2 NPs) with different contents of 0.3, 0.6, and 0.9 wt%. The prepared membranes were examined for their performance in the dye removal before being characterized using the field emission scanning electron microscope, atomic force microscopy, contact angle, Fourier-transform infrared spectroscopy, surface charge,
... Show More
(19)
(6)
Background: This in vitro study compares a novel calcium-phosphate etchant paste to conventional 37% phosphoric acid gel for bonding metal and ceramic brackets by evaluating the shear bond strength, remnant adhesive and enamel damage following water storage, acid challenge and fatigue loading. Material and Methods: Metal and ceramic brackets were bonded to 240 extracted human premolars using two enamel conditioning protocols: conventional 37% phosphoric acid (PA) gel (control), and an acidic calcium-phosphate (CaP) paste. The CaP paste was prepared from β-tricalcium phosphate and monocalcium phosphate monohydrate powders mixed with 37% phosphoric acid solution, and the resulting phase was confirmed using FTIR. The bonded premolars were exp
... Show More
(22)
(14)
Albizia lebbeck biomass was used as an adsorbent material in the present study to remove methyl red dye from an aqueous solution. A central composite rotatable design model was used to predict the dye removal efficiency. The optimization was accomplished under a temperature and mixing control system (37?C) with different particle size of 300 and 600 ?m. Highest adsorption efficiencies were obtained at lower dye concentrations and lower weight of adsorbent. The adsorption time, more than 48 h, was found to have a negative effect on the removal efficiency due to secondary metabolites compounds. However, the adsorption time was found to have a positive effect at high dye concentrations and high adsorbent weight. The colour removal effi
... Show More
(15)
(12)
(53)
(45)
(7)
(5)
The re-insurance of the same important role in the development programs and activities that reinsurance companies and their level of development and the mechanisms of action and the laws that govern the relationship between the re-insurance companies and direct companies reflect the cultural level and degree of progress of any country. &n
... Show Moreان استعمال الاساليب والنظريات العلمية الحديثة في عمل العلاقات العامة من شأنه ان يجعل عمل ادارات العلاقات العامة نافعاً ومؤثراً نافعاً للمؤسسة ومؤثراً في جمهورها ومحيطها الخارجي وكلما اتسع نشاط المؤسسة وكبر حجمها وامتدت الرقعة الجغرافية التي تنتشر عليها تشكيلات المؤسسة وفروعها كلما كبرت وكثرت التحديات والتهديدات التي تواجه المؤسسة ونشاطها وبذلك تكون الحاجة ماسة الى وجود ادارات متخصصة بالعلاقات العامة تس
... Show Moreتعد السخرية أداةً نقدية تتناول القضايا بشكل ساخر وفكاهي، حيث يتضمن استخدام التناقضات والتهكم للتعبير عن الآراء، مسهمًا بالدرجة الأولى في جذب انتباه القارئ، مسلطًا الضوء على قضايا المجتمع. يشارك في الخوض في نظرية نقدية حديثة، لما لها من أثر بلاغي في الايجاز وعرض الحادثة بشكل طريف, ونظرًا لصغر حجم الأعمال القصصية، فإنها تُيسّر على مبدع النص فرد الفكرة بأسلوب بليغ ومملح. على الرغم من الآلام والمأساويات التي شح
... Show More