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Showing posts from September, 2023

Personalized Medicine: The Future of Tailored Healthcare

  Imagine visiting a doctor and receiving treatment that’s perfectly matched to your DNA, lifestyle, and biology—no trial and error, no guessing. That’s not science fiction anymore. It’s the reality of personalized medicine, one of the most transformative trends in modern healthcare. Also known as precision medicine, this approach uses your genetic information to predict, prevent, and treat diseases more accurately and effectively than traditional one-size-fits-all methods.   What Is Personalized Medicine? Personalized medicine involves analyzing a person's genes, environment, and lifestyle to design specific medical care. Instead of giving everyone the same drug, doctors can now use your DNA to determine: 1. Which medications will work best for you   2.  The correct dosage   3. Your risk of developing certain diseases     Benefits of Personalized Medicine 1. More Effective Treatments   By targeting the root cause of illness (o...

Work Energy and Power

  Work ; This is the product of force and the displacement in the direction of the force. Work done = force x distance moved in the direction of force The unit of work done is Joule (J) How to Calculate Work Done Example Questions 1.         If a car of mass 80kg moved a distance of 5m. calculate the work done by the car (g =10m/s 2 )   Solution Mass = 80kg Force = 80 x 10 = 800N Distance = 5m Work done = 800 x 5 = 4000J 2.        A boy pulls a load of 300N to a distance of 6m. Calculate the work done   Solution Force = 300N Distance = 6m Work done = 300 X 6 = 1800J Energy : This is the ability to do work. It is also measured in Joule (J). Energy has many forms which include: ·          Heat energy ·          Light energy ·          Chemical en...

Titration of acid and base (calculation)

 Titration is the method employed in volumetric analysis. In this method, an unknown concentration of a liquid substance is titrated against another of known concentration. We are going to learn how to calculate the concentration of the substance using the question below. A is a dilute tetraoxosulphate (VI) acid. B contains 2g of sodium hydroxide per 250 cm3 of solution. 25cm 3 of B requires 23cm 3 of A for complete neutralization. Calculate i.                      Concentration of solution B in mol/dm 3 ii.                    Concentration of A in mol/dm 3 iii.                   The number of hydrogen ions in 1dm 3 of solution A (Na=23, H=1, S=32, O=16) Equation of reaction H 2 SO 4(aq...

Graham’s Law of Diffusion calculation

 Graham’s law states that any gas's diffusion rate at constant temperature and pressure is directly proportional to the square root of its relative molecular mass or vapour density. R 1 /R 2 = √ m 2 / √ m 1                    or t 2 /t 1 = √ m 2 / √ m 1 Example Questions 1.        If 200cm 3 of hydrogen diffused through a porous pot in 30 seconds. How long will it take 400cm 3 of oxygen to diffuse through the same pot? (H = 1, O = 16) Solution Before solving the problem, the first thing is to find how long it will take an equal volume (400cm 3 ) of hydrogen to diffuse through the pot. This is because we are comparing oxygen and hydrogen. Since 200cm 3 of hydrogen = 30s 400cm 3 will = 30/200 X 400 = 60s         t 2 /t 1 = √ m 2 / √ m 1         .t 1 = 60s  ...