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UNIT 2: SCIENCE AND SOCIETY
Understanding of scientific methods,
principles, criteria and their application
The nature and use of scientific method and investigation
Scientific method involves a series of logical and rational steps that allow scientists to organise
their thoughts, to test them and to reach conclusions. Definitions of what…

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The findings are published so that data and methodology can be shared with, and
scrutinised by, other members of the scientific community with similar interests.
This allows peer review to take place, which gives other scientists an opportunity
to identify research flaws or mistakes in the findings.
Scientists accept that…

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They are critical of the lack of clinical data to support the homeopathic case.
Conventional medicines are subjected to rigorous safety trials, often referred to as
controlled clinical trials, before they are licensed and the results of the trials are
published and subjected to critical scrutiny. Homeopathy cannot be explained…

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Controlled clinical trials (CCTs) cannot guarantee the safety of drugs that are being tested. A
CCT may not show how individual patients might react to a particular drug or course of
treatment.
Homeopathy is more likely to be beneficial to patients emotionally as well as physically.

Technology in contemporary society…

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The cells enable the system to handle a great many calls at once because each cell
uses the same set of frequencies as neighbouring cells.
The mast receives the signals and passes them to an exchange. Calls made to a cellphone
on a different network or to a landline have…

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Not many people realised the potential of mobile phones. The early ones were not always reliable
and were expensive, cumbersome and heavy. Yet technology developed quickly and what was
once a curiosity has now become almost indispensable.

In 20 years, mobile phones have gone from luxury to necessity and their…

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Sometimes there is no signal and no service for cellphones. Cells are connected by masts or
towers that receive and send signals. As people travel, the system automatically transfers the
phone from one cell to another, but in some more remote areas the distance between the
towers is too great…

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Whatever the disadvantages, the growth of the mobile phone market in the last 10 years, as
phones have become more versatile, has been phenomenal. The total number of cell phones in the
UK now exceeds the size of the population. Love them or hate them, it is impossible to envisage…

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