Transcript A Comparison of Bacterial Reduction between Antiseptics

Biology 402
Senior Seminar
Spring 2006
A Comparison of Bacterial Reduction
between Antiseptics
Studying E. coli strain DHα5
Senior Thesis
Minh Nguyen
Dr. Hartman, Dr. Olney
Saint Martin’s University
Results Of Disinfectant Sprays
After 48 Hour Incubation
Clorox Spray
Safeway Spray
Beth Layton
Lysol Spray
Water
Methods
General
• Workout Location: Tae Kwon
Do Academy in Puyallup
WA.
• Subjects: 14 total volunteers.
• Workout duration: 60
minutes for a 5 day period.
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Hydration: First week-water
consumption and the second
week, Gatorade consumption.
Kyle Samples
Daily Routine
• Participants are required to
consumed the given beverage.
• Then be weighed
• Workout for a 60 minute
period.
• At the end of the class, weigh
once more.
• Difference in weight will
determine sweat loss.
Comparing Black bear damage
on conifer trees in Washington
State Capitol Forest
By:
Brad Beerbower
Methods
Separate fish randomly in to 3 tanks (each tank with 20 fish)
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Let fish acclimate to new tank for one day
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Weigh food before feeding to the fish.
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1 g Feed every 12 hrs for 5 consecutive days
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Clean the tanks every 24 hrs before feeding them again.
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Collect unnecessary food and fecal material.
Ruby Lopez
FLESH FLY
(Sarcophaga sp.)
• Carrion-feeding flies
• Approx. 2600 known
species
• Worldwide
• Decomposition
• Forensics Science – Time
of death
Sothear Sam
http://www.uknature.co.uk/FleshFly-info.html
Hypothesis
• Those with acrylic nails
will harbor more bacteria
underneath their nails
than females with native
nails (unwashed and
washed).
• Image references:
http://phuketbeautymassage.com/nailpics.h
tml
http://www.brazilnaturalnails.com/
news.html
Pelenita Tuupo
An Investigation of the Amounts of
Bacteria on Employees’ Hands
Sample
• 50 total participants
– 40 grocery store employees
– 10 Saint Martin’s students
Occupations
•
•
•
•
•
Cashier
Produce/Bakery Clerk
Deli Clerk
Meat/Seafood Clerk
Student
Katie Illes
Oral Bacteria
Lactobacillus
Streptococcus mutans
http://www.stchas.edu/faculty/zfitzgerald/lactobacillus.jpg
http://www.dokidoki.ne.jp/home2/saishika/mutans1L.jpg
•Reside in oral flora
•Adhere to Enamel and Ingest Sugars
•Cause plaque
•Initiate cavities
Chris Leyster
Components of Study
Streptococcus mutans
Lactobacillus
Toothpaste
Total
24 Hours
72 Hours
24 Hours
72 Hours
Aquafresh
8
8
8
8
32
Arm n’ Hammer
8
8
8
8
32
Crest
8
8
8
8
32
Colgate
8
8
8
8
32
Toms
8
8
8
8
32
Control (Water)
4
4
4
4
16
Total
44
44
44
44
176
Chris Leyster
24 Hour Zones of Inhibition on
Lactobacillus
30
25
mm
20
15
10
5
0
crest
colgate
aquafresh
Toothpastes
Chris Leyster
toms
arm n
hammer
Research Goal
The goal of this project was to
ascertain the anti-microbial
power of common varieties of
chewing gum. The two varieties
tested were Orbit (cinnamon)
that is distributed by Wrigley Co.
and Trident (original).
Carter Richards
Results
Figure 1- Breakfast eaters vs. non-breakfast eaters in a sample of 20
college students. Mean differences between both testing days are
shown in this figure.
Test Percentage
Breakfast
No breakfast
90%
70%
50%
30%
1
3
5
7
9
11
13
Student Number
Rachael Schroll
15
17
19
Correlation of Coarse
Woody Debris Biomass and
Tree Species Diversity
within Coniferous Forests of
Western Washington
Rachel Wehr
COARSE WOODY
DEBRIS: LOGS
Rachel Wehr
CORRELATION ANALYSIS
250
CWD biomass
200
young forest
150
mature forest
100
old growth forest
50
0
0
0.5
1
diversity index
Correlation coefficients
Young r = -0.207 , P = 0.793
Mature r = -0.628 , P = 0.372
Old Growth
Rachel Wehr
r = 0.295 , P = 0.705
1.5
Oral hygiene habits and oral bacterial
populations
A comparison of Lactobacillus and
Streptococcus bacteria
Travis Ochsner
4/21/2006
Senior Seminar
Dr. Olney
Dr. Hartman
Hypothesis
• Excessive oral hygiene habits will
decrease populations of Lactobacillus
bacteria (Tomato juice broth pH 4) more
drastically than Streptococcus bacteria
(Brain-Heart infusion {BHI} broth pH 6.5).
• Factors- hygiene, bacterial growth, and
interaction.
Travis Ochsner
Senior Seminar Project
Chagas Disease
Sara Trejo
Dr. Margaret Olney and Dr.
Mary Jo Hartman
Saint Martin’s University
2006
Hypothesis Statement
• Polymerase Chain Reaction (PCR) can be
developed for use as a specific and sensitive
diagnostic tool for Chagas Disease.
• First step towards development is the evaluation of
PCR primer sets for specificity and sensitivity.
Sara Trejo
CHPPM-West, Fort Lewis.
Jose Avila
Comparison of bacterial growth in the
oral cavity between tobacco consumers
and non–tobacco users
Krystle Antolin
Range of Motion
• Range of Motion
(ROM) is the
complete movement
of the joint through
flexion and extension.
• Normal ROM:
extension, 0 degrees
and flexion is 135
degrees.
Courtney Rogers
Materials
• Active Ankles
brace:
• Lace-up Ankle
brace:
http://www.activeankle.com/
Goniometer:
http://www.wisdomking.com/product55238.html
http://www.orthobionics.com/ankle/pages/laceup_ankle.htm
Randi-Lee Rezents
Foot Care : A Study Examining The
Occurrence of Corns & Calluses in
Males and Females
By Ann Marie McCanick
Senior Seminar
May 3, 2006
Dr. Hartman & Dr.
Olney