The bacterial contamination of lipsticks and face cream may become a great important matter in the medical laboratories. The present study was designed to determine the types of bacterial contamination in the face cream and lipsticks of undergraduate students. Also, the study aimed to determine the sensitivity of the isolated bacteria against many antibacterial agents. The study included 190 swabs samples from 190 face cream and lipsticks samples of the females’ students from five departments in the Medical Technology Institute, Almansour, Middle Technical University were collected in February 2018. The swab samples were collected with sterile condition and cultured on enriched Blood agar and MacConkey agar. Serial dilutions were made up to 10−6 to enumerate the suspected present bacteria in the samples. The identification of isolated bacteria was confirmed by using culture media, Gram stain and biochemical tests. The sensitivity test of the isolated bacteria to different antibiotics was examined according to Bauer - Kirby disc diffusion method. 100 (52.63%) samples were positive; 100 isolates of bacteria were isolated from makeup. Also, the percentage of bacterial isolates isolated from the face cream samples were more than the lipsticks (85% vs. 15%, respectively). The most frequent bacterial isolates were Staphylococcus aureus (66.66% from lipstick swabs and 47.05% from the face cream) followed by Staphylococcus epidermidis (13.33 from the lipstick and 23.52% from the face cream). Also, Escherichia coli was isolated and the percentage of E. coli was 13.33% and 11.76%, for the lipstick and the face cream, respectively. Pseudomonas aeruginosa showed a high resistance to the antibiotics. Whereas, Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Streptococcus pyogenes, Bacillus subtilis, Micrococcus spp. and Proteus mirabilis were susceptible to Cephalothin and Ciprofloxacin, while it resistant to Amikacin, Cefazolin and Cefotaxime. The bacterial counts in the makeup were higher than the bacterial limits standards. The lipstick and face cream were relatively contaminated with Gram-positive and Gram-negative bacteria more than the standard limit, these contaminated accessories lead to distribute the pathogenic bacteria among the students causing several diseases.
Most dental supplies don't seem to be much of a barrier against germ infiltration. Therefore, the filling must be done with perfect caution and high antimicrobial effectiveness. When dental erosion occurs due to germs that lead to caries, a dental filling is used, creating a small microscopic space between the dental filling and the root end infiltration. This allowed the tooth to be penetrated for the second time, which was the research problem. Adding two compounds to antibacterial fillers (zinc polycarboxylate cement) made them work better: Firstly, was zinc oxide (ZnO) that was made chemically, and secondly, was green ZnO nanoparticles that were made from orange peels and mixed with ZPCC in different amounts. The study was conducte
... Show MoreLaser shock peening (LSP) is deemed as a deep-rooted technology for stimulating compressive residual stresses below the surface of metallic elements. As a result, fatigue lifespan is improved, and the substance properties become further resistant to wear and corrosion. The LSP provides more unfailing surface treatment and a potential decrease in microstructural damage. Laser shock peening is a well-organized method measured up to the mechanical shoot peening. This kind of surface handling can be fulfilled via an intense laser pulse focused on a substantial surface in extremely shorter intervals. In this work, Hydrofluoric Acid (HF) and pure water as a coating layer were utilized as a new technique to improve the properti
... Show MoreIn this paper, we give the concept of N-open set in bitopological spaces, where N is the first letter of the name of one of the authors, then we used this concept to define a new kind of compactness, namely N-compactness and we define the N-continuous function in bitopological spaces. We study some properties of N-compact spaces, and the relationships between this kind and two other known kinds which are S-compactness and pair-wise compactness.
This work, introduces some concepts in bitopological spaces, which are nm-j-ω-converges to a subset, nm-j-ω-directed toward a set, nm-j-ω-closed mappings, nm-j-ω-rigid set, and nm-j-ω-continuous mappings. The mainline idea in this paper is nm-j-ω-perfect mappings in bitopological spaces such that n = 1,2 and m =1,2 n ≠ m. Characterizations concerning these concepts and several theorems are studied, where j = q , δ, a , pre, b, b.
Hypothyroidism is a condition in which thyroid hormones levels decreased in the blood. These hormones are necessary for energy production and body viability. In many occasions this condition is accompanied or followed by different metabolic disorders. The current study is conducted in the "Specialized center for endocrinology and diabetes" and carried on 70 hypothyroid patients and 60 randomly chosen individuals with normal thyroid function .Both groups were submitted to laboratory tests to evaluate thyroid function (T3,T4.TSH). The study involved evaluation of the relationship between hypothyroidism and insulin resistance (IR) . Health problem related to many diseases , became common lately. Insulin resistance diagnosed through
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