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Bioassay is defined as the estimation of the potency of an active principle in a unit quantity of preparation.

•Detection andmeasurement of the concentration of the substance in a preparation using biological methods.

IMPORTANCE OF BIOASSAY

Bioassays, as compared to other methods of assay (e.g. chemical or physical assay) is very important.

Because it is the only method of assay if

1. Active principle of drug is unknown or cannot be isolated, e.g. insulin, posterior pituitary extract etc.

2. Chemical

NSAIDs have following group of drugs

1Analgesic 2 Antipyretic3Antiinflammatory

Classification

A. Nonselective COX inhibitors (traditional NSAIDs)

1. Salicylates: Aspirin

2. Propionic acid derivatives: Ibuprofen, Naproxen, Ketoprofen, Flurbiprofen.

3. Anthranilic acid derivative: Mephenamic acid

4. Aryl-acetic acid derivatives: Diclofenac, Aceclofenac.

5. Oxicam derivatives: Piroxicam, Tenoxicam.

6. Pyrrolo-pyrrole derivative: Ketorolac 7. Indole derivative: Indomethacin. 8. Pyrazolone derivative:

The concepts of climate change, global warming, the greenhouse effect, and ozone depletion are fundamental to understanding the current state of our global environment and the imperative for sustainable development.
🌡️ Climate Change and Global Warming -Climate Change refers to a long-term shift in the average weather conditions of a region or the Earth as a whole. This includes changes in temperature, precipitation patterns, and wind patterns. Global Warming is the term used to describe the

📈 Population: Growth and Regulation
Population ecology studies the factors that affect the size, distribution, density, and age structure of populations. Population size is dynamic, influenced by inputs and outputs.
Population Growth
The size of a population (P_t) at a given time (t) is determined by four fundamental factors:
Where:
 * P_0 is the initial population size.
 * N is Natality (birth rate/number of births).
 * I is Immigration (inward movement of individuals).
 * M is Mortality (death

The environment is shaped by a complex interplay of abiotic (non-living) and biotic (living) factors, which collectively determine the nature of ecosystems worldwide.
☀️ Abiotic Factors (Physico-Chemical) -Abiotic factors are the non-living components of the environment that influence the survival, growth, and distribution of organisms.
Climatic Factors -These are largely controlled by weather patterns and include: * Light: The primary source of energy. Its characteristics are critical for photosynthesis

Ecology is the fundamental study of the intricate relationships between living organisms (including humans) and their physical environment. It seeks to understand the vital connections, interactions, and exchanges of energy and matter that occur within the natural world .
🌎 Definition of Ecology
The term Ecology comes from the Greek words oikos (meaning 'house' or 'habitat') and logos (meaning 'study of').
 * Formal Definition: Ecology is the scientific study of the interactions among organisms