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EDUCATION

physiology was first used by the Greeks around 600 BCE to describe a philosophical inquiry into the nature of things. The use of the term with specific reference to vital activities of healthy humans, which began in the 16th century, also is applicable to many current aspects of physiology. In the 19th century, curiosity, medical necessity, and economic interest stimulated research concerning the physiology of all living organisms.

Posted by: AAP Bridge

Cells and their constituents

Biologists once depended on the light microscope to study the morphology of cells found in higher plants and animals. The functioning of cells in unicellular and in multicellular organisms was then postulated from observation of the structure; the discovery of the chloroplastids in the cell, for example, led to the investigation of the process of photosynthesis. With the invention of the electron microscope, the fine organization of the plastids could be used for further quantitative studies of the different parts of that process.

Thursday, Jun 3, 2021

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Cultural ecology also has its roots in earlier cultural anthropology, the geographic and environmental context of culture change. The neo-evolutionist Leslie White reacted to the idealism of the cultural approach, turning his attention to the progress of technology in harnessing energy to serve the survival and subsistence needs of cultures. Cultural ecology has sought to produce a more quantitative discipline than is characteristic of most cultural anthropology, which has remained rooted in the humanities.

Thursday, Jun 3, 2021

AGRI-FOOD SYSTEMS

EDUCATION

Biology and its Principles

Biology, the study of living things and their vital processes. The field deals with all the physicochemical aspects of life. The modern tendency toward cross-disciplinary research and the unification of scientific knowledge and investigation from different fields has resulted in a significant overlap of the field of biology with other scientific disciplines. Modern principles of other fields—chemistry, medicine, and physics, for example—are integrated with those of biology in areas such as biochemistry, biomedicine, and biophysics.

Posted by: AAP Bridge

Cultural anthropology

Cultural anthropology is that major division of anthropology that explains culture in its many aspects. It is anchored in the collection, analysis, and explanation (or interpretation) of the primary data of extended ethnographic field research. This discipline, both in America and in Europe, has long cast a wide net and includes various approaches. It has produced such collateral approaches as culture-and-personality studies, culture history, cultural ecology, cultural materialism, ethnohistory, and historical anthropology. These subdisciplines variously exploit methods from the sciences and the humanities. Cultural anthropology has become a family of approaches oriented by the cultural concept.

Thursday, Jun 3, 2021

In archeological excavations 250 km south of Baghdad extraction pots (Figure 1.1 ) from about 3500 BC were found [1] , made from a hard, sandy material presumably air - dried brick earth. It is supposed that in the circular channel was the solid feed, which was extracted by a Soxhlet - like procedure with water or oil. The solvent vapors were condensed at the cap, possibly cooled by wet rags. The condensate then did the leaching and was fed back through holes in the channel to the bottom.

Thursday, May 27, 2021

Many students with ADHD have significant difficulties with organization. They are more likely to respond positively when teachers establish class routines and set procedures and maintain a well-organized learning environment. Clear rules and advanced planning are keys to success for teachers of students with ADHD. The following organizational supports are particularly useful. Students should be taught to use these tools through teacher modeling and guided practice with feedback before being expected to use them more independently.

By: Harry Nomes

Thursday, May 27, 2021

The exploitation of natural resources is the use of natural resources for economic growth, sometimes with a negative connotation of accompanying environmental degradation. It started to emerge on an industrial scale in the 19th century as the extraction and processing of raw materials (such as in mining, steam power, and machinery) developed much further than it had in preindustrial areas. During the 20th century, energy consumption rapidly increased. Today, about 80% of the world's energy consumption is sustained by the extraction of fossil fuels, which consists of oil, coal and natural gas.

Thursday, May 27, 2021

WATER, ENERGY, AND THE ENVIRONMENT

Renewable Natural Resources. Renewable resources refer to resources that can naturally regenerate after use. They include resources such as wind, water, natural vegetation, solar energy, and animals. These resources exist in nature in abundance.

Thursday, May 27, 2021

A projectile is any object thrown into space upon which the only acting force is gravity. The primary force acting on a projectile is gravity. This doesn’t necessarily mean that other forces do not act on it, just that their effect is minimal compared to gravity. The path followed by a projectile is known as a trajectory. A baseball batted or thrown is an example of the projectile.

Thursday, May 27, 2021

motion as the change of position of an object with respect to time. A book falling off a table, water flowing from the tap, rattling windows, etc all exhibit motion. Even the air that we breathe exhibits motion! Everything in the universe moves. We live in a universe that is in continual motion. The fundamental particle of a matter that is the atom is in constant motion too. Every physical process in the universe is composed of motion of some sort. The motion can either be swift or slow, but motion exists. It is important that we give due attention to the study of motion because of its importance in the physical world.

Thursday, May 27, 2021

Friction: the force and A few factors

Friction is the force that resists motion when the surface of one object comes in contact with the surface of another. The mechanical advantage of a machine is reduced by friction, or in other words, the ratio of output to input is reduced because of friction. An automobile uses one-quarter of its energy on limiting the friction. Yet, it is also friction in the tires that allows the car to stay on the road and friction in the clutch that makes it possible to drive. From matches to machines to molecular structures, friction is one of the most significant phenomena in the physical world. A few factors affecting the frictional force: These forces are mainly affected by the surface texture and amount of force impelling them together. The angle and position of the object affect the amount of frictional force. If an object is placed flat against an object, then the frictional force will be equal to the weight of the object. If an object is pushed against the surface, then the frictional force will be increased and becomes more than the weight of the object.

Thursday, May 27, 2021

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