College Of Basic Education Researches Journal

The current research aims at defining the effect of Mastery learning strategy on the development of Academic Achievement for Sixth Primary Class pupils in science. The limit of the research was Sixth Primary Class pupils for the academic year 2013-2014) in Nineveh governorate. The sample was (43) students divided into two equal groups ( experimental and control ). To achieve the aim of the research , the researchers made lesson plan for both groups and academic achievement scale as tool of the research.
The results showed statistically significant difference in the development of academic achievement and in favor of experimental group.

The current study has contained inhibition effect test of alkaloid extraction of Radish (Raphiol) and Antibiotics such as:
Amoxycillin+ Clavlanic acid (AMC), Doxy cycline (DO), Ciprofloxacian (CIP), TrimeThoprin + Sulphameuo xazol (SXT)
against several types of The positive and negative Gram
Disease bacteria which is
1- Salmonella typhi.
2- Esherichia coli.
3- Bacillus Subtilis.
4- Staphylococcus aureus.
Which are considered of the wide spread Germs causing many effective diseases. The inhibition effect has been identified by sensitivity test (diffusion method by disks) depending on the method (Bauer et al, 1966), showing that alkaloid (Raphaiol) extracted from Radish has different inhibition effect according to the difference of the used part and the type of bacteria.
It has been showed by the study that the concentrations of alkaloid extraction (Raphaiol) of Radish seeds (50, 100, 200) mg/ml showed evidently effect in growth inhibition of each positive and negative gram bacteria such as Staphylococcus aureus and Esherichia coli and their effect is more obvious than the used antibiotics widely.
As well as it has showed that the alkaloid extraction of Radish of explants (Root) has negative effect in all growth (Esherichia coli, Staphylococcus aureus) concentrations (50, 100, 200) mg/ml.
The extraction of callus leaves and roots of Radish have shown distinctive concentration (200) mg /ml in effective on inhibition growth of the bacteria Salmonlla typhi.

The study included the isolation and identification of the bacteria causing wound infection in two types of patients (diabetic and non diabetic).
(60) samples were collected from wound infection, (18) samples from diabetic patients (30%) and (42) were from non diabetic patients (70%). These samples represented different ages and both genders. The results show that all samples of diabetic patients was positive growth (100%), (32) isolate were obtained from all samples, include (12) isolate of Gram negative bacilli (37.5%) and (20) isolate of Gram positive cooci (62.5%). Non-diabetic patients samples give (38) samples (90.47%) bacterial growth. (95) isolate were obtaind from this samples. (52) isolate (54.73%) of Gram positive cooci and (43) isolate of Gram negative bacilli (45.26%) and (4) samples were negative for bacterial growth (9.52%).
The results also show that the highest percentage of these strains are Staphylococcus aureus (40.62%) from diabetic patients and (35.79%) from non-diabetic patients. While the lowest percentage shows in Proteus spp. and Streptocoous spp. (6.25% and 3.13%) in diabetic patients and (4.21% and 3.16%) in non-diabetic patients, respectively.
The study also includes assessment of the antibacterial activity of Nigella sativa oil against the isolates, using disk diffusion method compared with antibiotics used in this study.
The results showed that Nigella sativa oil have a good antibacterial activily on all bacterial types. The oil give good inhibitory effects on Staph. aureus and Streptococcus spp. Whose effective concentration reached (0.033) v/v. also the oil were more effective than the control antibiotics.