Jerawat merupakan suatu kelainan kulit yang salah satunya disebabkan oleh bakteri Staphylococcus aureus dan Propionibacterium acne. Herba meniran (Phyllanthus niruri L.) daun sirsak (Annona muricata mengandung senyawa alkaloid, flavonoid, triterpenoid, saponin, polifenol metabolit sekunder lainnya. Secara tradisional herba tanaman berkhasiat sebagai Obat jerawat. Tujuan penelitian ini dilakukan...

The aim of this study was to evaluate the quality of boar sperm using two different freezing techniques. The protocols were proposed by Westendorf and Paquignon. In both methods the seminal plasma is removed. In the protocol Paquignon the seminal plasma is removed at environmental temperature and the Westendorf protocol suggests that the plasma withdrawal should be made at 15oC. The sperm suspe...

Nitric oxide (NO) and NO-related pathways have the potential to play critical roles in the helminthes life cycle. Nitric oxide and nitric oxide synthase(NOS) in the parasitic trematode Fasciola gigantica were investigated. Two forms of F. gigantica nitric oxide synthase were detected after chromatography on CM-cellulose. The NOS II had the highest specific activity. NOS II was purified to homog...

The decomposition of organic matter is a major biogeochemical process because of its effect on ecosystem productivity and its implications on climate change. Temperature and moisture are two variables that have a tremendous influence on microbial decomposition. Decomposition is also influenced by substrate type, in which higher quality substrates often have greater decomposition than lower qual...

Increased temperatures from global climate change are projected to cause substantial losses in crop productivity by the end of the twenty-first century. High temperature is predominant among the cardinal ecological factors that determine crop growth and productivity (Al-Khatib and Paulsen, 1999). In cotton, temperature is a primary controller of the rate of plant growth, developmental events, a...

An improved extraction and HPLC method for the simultaneous extraction and quantitation of retinol, α-tocopherol, α-tocotrienol and β-carotene was developed to analyze commercial whole/semi-skim/skim samples of raw/pasteurized/UHT milk in transparent plastic/glass bottles and Tetra Brik containers. The sample preparation method required prior saponification at 40oC for 15 min followed by n-hexa...

HOSSAIN, A.B.M.S. and A.N. BOYCE, 2009. Biodiesel production from waste sunflower cooking oil as an environmental recycling process and renewable energy. Bulg. J. Agric. Sci., 15: 312-317 Comparison of the optimum conditions of alkaline-catalyzed transesterification process for biodiesel production from pure sunflower cooking oil (PSCO) and waste sunflower cooking oil (WSCO) through transesteri...

The New World screwworm, Cochliomyia hominivorax Coquerel, is mass reared for screwworm eradication initiatives that use the sterile insect technique. New methods for rearing have helped to reduce the cost of the eradication program. We examined the effect and interaction of three temperatures (24.5, 29.5 and 34.5oC), two diets (2% spray-dried blood plus 0.05% vitamins and corn syrup carrageena...

The present study was an attempt to investigate the feasibility of the matrix based sustained release unit dosage formulation of cefixime trihydrate. Matrix tablets were prepared by using xanthan gum along with the other polymer combinations (Guar gum, sodium alginate and hydroxypropylmethyl cellulose). Effect of different formulation variables like polymer concentration, ratio of polymer combi...

Bài báo này trình bày về thiết kế mạch tạo điện áp tham chiếu ổn định (Bandgap Voltage Reference: BGR) không phụ thuộc vào sự thay đổi của quy công nghệ, nhiệt độ và nguồn cung cấp (Process, Temperature, Voltage: PVT) ứng dụng cho các tử yêu cầu có chính xác cao tích hợp trên chip. Mạch BGR đề xuất đạt được hệ số (Temperature Coefficient: TC) thấp bằng cách kết sử khuếch đại thuật toán (Operati...