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Designing an Experiment, Biology Presentation

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by

Nikita Sormunen

on 5 December 2014

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Transcript of Designing an Experiment, Biology Presentation

Designing
an
Experiment
By
Nikita Aleksandr Sormunen
and
Sara Hoxhaj
The Question:
Do Tanning Beds Cause Skin Cancer?
Basic Info
Benefits/risks
1. Independent Variable(s)
2. Dependent Variable
3. Controlled Variable(s)
The Procedure:
Ethical Issues/Uncertainties
An estimated 30 million customer base in the U.S.A.
Nearly 18 % of females use services provided by tanning salons.
6.3 % of males use the same services.
Tanning beds emit UV radiation in forms of UVA and UVB.
Fluorescent lamps used.
Tanning beds have different tanning levels.
Tanning beds tend to be either high or low pressure.
Exposure kept constant
VS.
Cause of skin cancer
Acceleration of skin aging
Mutation of DNA
Weakens the immune system
Skin defects
The amount of time under exposure of UV radiation in tanning beds
The strength of the UV radiation
-Tanning levels
-High/low pressures
-The amount of UVA radiation in ratio to UVB radiation
The quality of the salon (price=quality)
The amount of individuals which develop some sort of skin defects including the extremes: different types of skin cancer.
Amount of time spent exposed to UV radiation in tanning beds.
Regularity of tanning bed usage.
Time spent exposed to sunlight when not in tanning bed.
Questioner
Selection of three groups
Group 1: go to expensive salons, 2: go to cheap salons, 3: don't use services of tanning salons.
Groups 1 and 2 spend the same amount of time exposed to UV radiation.
The experiment is set over the course of 1 year.
Regularly the participants are asked to be checked for skin disease.
BIO
Resources:
http://www.ehow.com/about_4564803_different-types-tanning-beds.html
http://www.webmd.com/melanoma-skin-cancer/features/the-skin-cancer-risk-from-tanning-beds
http://en.wikipedia.org/wiki/Tanning_bed
Information Resources
Picture Resources
http://medimoon.com/wp-content/uploads/2014/06/Tanning-Bed-Supplies.jpg
http://img.webmd.com/dtmcms/live/webmd/consumer_assets/site_images/articles/health_tools/precancerous_lesions_slideshow/PRinc_photo_of_dermatologist_screening_for_melanoma.jpg
http://www.betcheslovethis.com/files/uploads/images/tanning-bed-woman-120501.jpg
http://www.bostoncfoservices.com/site_images/hands_different_races.jpg
THANK YOU VERY MUCH!
Difficulties keeping track of participants' actions.
People might not be willing to contribute to the studies.
Different participants have different skin. Some more sensitive, some more enduring.
The amount of melanin in the epidermis.
Full transcript