EDUCATIONAL BLOG

      DEPRESSION      Depression a common and serious medical illness that negatively affects how you feel, the way you think and how you act. causes feelings of sadness and/or a loss of interest in activities once enjoyed. drains your energy, hope, and drive, making it difficult to take the steps that will help you to feel better. Depression symptoms can vary from mild to severe and can include: Feeling sad or having a depressed mood Loss of interest or pleasure in activities once enjoyed Changes in appetite — weight loss or gain unrelated to dieting Trouble sleeping or sleeping too much Loss of energy or increased fatigue Increase in purposeless physical activity (e.g., hand-wringing or pacing) or slowed movements and speech (actions observable by others) Feeling worthless or guilty Difficulty thinking, concentrating or making decisions Thoughts of death or suicide (NOTE:  Symptoms must last at least two weeks for ...

STRAIGHT-THROUGH AND CROSS-OVER CABLE Type A pattern of Network Cable: Orange-white Orange Green-white Blue Blue-white Green Brown-white Brown Type B pattern of Network Cable: Green-white Green Orange-white Blue Blue-white Orange Brown-white Brown WHAT IS STRAIGHT-THROUGH NETWORK CABLE? Usually use straight cable to connect different type of devices. If you need to check how straight cable looks like, it's easy. Both sides (side A and side B) of cable have wire arrangement with same color. In straight cable connectivity is like as follows RJ451 Connected to RJ452 Pin1------------------------------------- Pin1 Pin2------------------------------------- Pin2 Pin3------------------------------------- Pin3 Pin4------------------------------------- Pin4 Pin5------------------------------------- Pin5 Pin6------------------------------------- Pin6 Pin7------------------------------------- Pin7 Pin8---------...

SERIES AND PARALLEL CIRCUIT WHAT IS SERIES CIRCUIT? A series circuit is one that has more than one resistor, but only one path through which the electricity (electrons) flows. From one end of the cell (battery), the electrons move along one path with NO branches, through the resistors, to the other end of the cell. All the components in a series circuit are connected end-to-end. Resistor-   is anything that uses some of the power from the cell. Each time there is damage (break) in any one of the resistors the entire circuit will not function. For example, if one light bulb goes out, all the other lights will go off because the electricity path in the broken bulb is cut off. This circuit is commonly used in  WHAT IS PARALLEL CIRCUIT? A Parallel circuit is one with several different paths for the electricity to travel. It's like a river that has been divided up into smaller streams, however, all the streams come back to the same point t...