The purpose of this research was to study the appropriate teaching and learning style for developing mathematics knowledge. The samples of this study were 60 Bachelor Degree students major in package and textile design. The research instruments were the teaching and learning style for developing mathematics knowledge in analytical geometry questionnaire interview and attitude test. The data was analyzed by means of arithmetic mean standard deviation Peasons Product Moment Correlation and interpretation analysis.

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A novel and simple method for measuring total antioxidant capacity or T AC in Thai herb extracts has been developed. The principle is based on generating free radical the deep blue Imipramine radical is generated by oxidizing Imipramine by ammonium tetravanadate in acid medium that can be easily scavenged by antioxidant compounds in the sample. Decreasing in the absorption spectrum at 620 nm related with antioxidant capacity was detected by spectrophotometer method in the proposed of practicable and low-cost However improvement of the throughput Flow injection analysis (FIA) was applied. The variables affecting the signal such as pH reagent concentrations linear relationship was optimized. The novel assay is linear up to 2800 mg Trolox equivalent/L its precision value is lower than 1% RSD and these are no interference from NaOH NaCI and N~C03 The method was applied for determination of three extract fractions of G. sootepensis. The results show the different of antioxidant capacity in each fraction with S I has the most TAC following S2 and S3 respectively. Although a good correlation of the present method was observed between two methods DPPH and Follin Ciocalteu reagent Finally the developed method was easy stable inexpensive environmental friendly and automated measures total antioxidant capacity.

The aim of this research was to develop a novel convenient low cost environmental friendly and simply method for determination of melamine in milk samples. The chemical reaction of this method was based on the complexation of melamine aldehyde and ketone called Mannich reaction. The absorption of the product complex was recorded by spectrophotometric technique at 236 nm. The method validation was good with linear range of 0.1-2.5 ppm and the limit of detection (LOD) was 0.08 ppm. The method revealed precision with %RSD values no greater than 5%. To quantitY the amount of melamine in raw milk standard addition was applied with recoveries in a range from 76-91 %.

Research aims to bring the waste. The cashew nut shell the odor removal products. To reduce the use of chemicals. And reduce waste agricultural waste and Community Research finds that The cashew nut shell. When buming the charcoal. The moisture content is 5. 26 % with charcoal to absorb odors as well. The carbon shell of cashew nuts are finely ground can absorb it very well the pH of the solution averaged 8.17 ability to absorb the smell of charcoal bark seeds cashew nuts in a container that is stale take 3-5 days to product. Absorbs odors welL Vase Grapes on the product used the time to absorb the smell more than 5 days and less ability to absorb odors. The shell is made from cashew nut products odor removal is a method that can reduce the use of chemicals to eliminate any odor and reduce global warming and the other one.