Micro Learners

CULTURE MEDIA AND ITS TYPES What is Culture Media? The media is a source of nutrients to support the growth of the micro-organisms in-vitro. The media helps in the growth and counting of microbial cells, selection of microorganisms, and survival of microorganisms. The culture medium can be liquid or gel. Common ingredients of culture media • Peptone- source of carbon and nitrogen. • Beef extract- source of amino acid, vitamins, minerals. • Yeast extract- source of vitamin, carbon, nitrogen. • Distilled water • Agar- solidifying agent How to prepare culture media? 1. Weigh the amount of ingredients powder on weighing machine. 2. Dissolve the ingredients in distilled water. 3. Adjust PH of the medium if needed. 4. Add agar and boiled it to dissolve. 5. Pour the media into flask. 6. Autoclave the media when ingredients fully dissolve. 7. Sterilization is done in autoclave to prevent from contamination, at 121ºC for 15 min at 15lbs. 8. After the autoclave place the media flask in laminar...

Biostatistics Biostatistics is a branch of statistics that applies statistical methods to biological, medical, and public health research. It's a crucial field in analyzing data from experiments, clinical trials, epidemiological studies, genetics, and more. Key Areas of Biostatistics: 1. Descriptive Statistics o Summarizing and organizing data (e.g., means, medians, standard deviations, histograms). 2. Inferential Statistics o Making predictions or generalizations about a population based on a sample (e.g., hypothesis testing, confidence intervals, p-values). 3. Probability Theory o Understanding and modeling random phenomena, crucial for designing experiments and interpreting data. 4. Study Design o Includes randomized controlled trials, cohort studies, case-control studies, and cross-sectional studies. 5. Regression and Modeling o Linear and logistic regression, survival analysis (Cox proportional hazards), mixed-effects models, etc. 6. Survival Analysis o Analyzing time-to-ev...

AUTOCLAVE An autoclave is a machine that provides a physical method of sterilization by killing bacteria, viruses, and even spores present in the material put inside of the vessel using steam under pressure. Autoclave sterilizes the materials by heating them up to a particular temperature for a specific period of time. The autoclave is also called a steam sterilizer that is commonly used in healthcare facilities and industries for various purposes. The autoclave is considered a more effective method of sterilization as it is based on moist heat sterilization Autoclave Parts/ Components The simplest form of the autoclave is the pressure cooker type or laboratory bench autoclaves. The following is the detailed description of different components/ parts of an autoclave: a. Pressure Chamber • The pressure chamber is the main component of a steam autoclave consisting of an inner chamber and an outer jacket. • The inner chamber is made up of stainless steel or gunmetal, which is present i...