Hello again! This week's full moon brought out the crazy in my life! A lot of interesting events, but at least my daughter had a break from ASU on Monday and Tuesday. I loved getting to spend 4 days with her, and so did Dante:) We are almost at the halfway point in the semester, and I am definitely feeling it. Hopefully, things will settle down a little soon so I can pour more time into my research. My school workload was very heavy this week, so I didn't have much time to focus on my project background due next week. I plan on dedicating a large portion of my energy to completing that phase of the semester and will begin working in the lab tomorrow. I added a picture of my sponges to this page. I was surprised they came compressed; I thought Josh ordered Post-it notes at first:)
TRAIN Scholar Dixie Baldridge's Blog
Thursday, October 17, 2024
Thursday, October 10, 2024
Happy Thursday! I am beyond excited to see some 80-degree weather in the forecast for next Friday! This week has been relatively quiet project-wise. I've been researching the best protocols and gathering information on the best way to conduct my experiment. My sponges were delivered, and I will start working in the lab next week! I haven't been in a science lab since I was a junior in high school chemistry class, so I will be relying heavily on Josh to remind me of safety protocols and best practices. I have much learning ahead of me, and I can't wait to see how the project progresses. I hope everyone has a great holiday weekend and gets some much-needed rest!
Monday, September 30, 2024
The goal of this research is to
determine bacterial levels and diversity in kitchen sponges as well as
effective household disinfection methods. This research will begin with sterile
sponges, first testing the new sponges for any existing bacterium. The sponges
will then be used to wash dirty dishes, followed by testing each sponge for
bacterial levels and diversity. Finally, the contaminated sponges will be
disinfected through multiple methods, including microwave, dishwasher, and air
drying. The significance of the research is to determine the most effective
sanitation methods for kitchen sponges and the bacterial levels and diversity.
Kitchen sponges are commonly used to clean dishes and with that comes the
potential for cross-contamination from foods with bacteria, viruses, and molds.
Illness from these pathogens contribute to hospitalizations and it is important
to study the types of bacteria and the most effective method for elimination to
prevent illness through cross-contamination.
This
research will be conducted by experimenting using dirty kitchen sponges. Each
sponge will be tested using agar plates, one sample will be taken while the
sponge is still damp, before disinfecting, then another after each disinfection
method. The number of bacterial colonies will be observed after incubation.
What are the bacterial levels and
diversity of a dirty kitchen sponge and what is the most effective way to
disinfect a kitchen sponge? It is believed that a dirty kitchen sponge contains
a large and diverse number of bacteria and the most effective method for
sanitizing the sponge is to use the microwave. It may be discovered that a
combination of high heat and the time exposed to the heat will increase the
effectiveness of the disinfection method. There is a possibility that none of
the sanitation methods are effective in eliminating bacteria on a kitchen
sponge.
Wednesday, September 25, 2024
Back to sponges it is! At least for now:) Still
waiting on the internship opportunities, the posting closes on the 30th of this
month, so I should hear something soon after. Josh ordered the sponges and
informed me they were delivered, let the washing begin. I will be focusing on
my research proposal this week and hope I can manage my other courses in the
meantime. Senior year has proven to be the most challenging thus far. So many
papers! Although it's more work than learning a new programming language, I
find it far less frustrating - something about being taught how to write in
English early in life I'm guessing:)
Wednesday, September 18, 2024
Happy Wednesday! This week has been extremely busy, filled
with tons of schoolwork! Although I have had more frustrating and challenging
semesters (3 coding languages in one semester), this semester feels much more
time consuming with all the readings, projects, research, and papers. I do feel
like I am soaking it all in like a sponge, so that's reassuring! Speaking of
sponges, I have pivoted to another project helping Josh with plant DNA
extraction and studying the microbiome of the plant during droughts, including
the root system, stems, and leaves of the plant. I am beyond excited for this
research and am very curious about what we will find! Also, still waiting for
the internship selection process - hoping for good news! Have an incredible
week!
Here's a link to an article from the DOE explaining plant
microbiome.
Wednesday, September 11, 2024
Hello again! I am so thankful for the opportunity to be a part of the TRAIN Scholarship program for another semester! I had a wonderful learning experience last spring, and am excited to see the new projects and findings this semester! I have applied for 2 different internships, one is with the US Air Force Cyber Command and the other is with the State of Arizona as a cyber security intern. Either opportunity would be an incredible experience for me and my journey into cyberspace! While I await a phone call or email from these internships regarding my acceptance or denial, I have chosen to begin a research project in the lab. I will be studying sponges - I may regret this decision by the end! I have so many things I want to know about them, like how many different types of bacteria live on your kitchen sponge, what the best sanitation method is, and bacteria differences based on washing human dishes or animal dishes.
Thursday, May 2, 2024
What a wonderful afternoon listening to and watching the presentations from the Train Scholars! Everyone did an amazing job and what interesting and relevant topics of study! I learned so much from this afternoon's session and can't wait to have the opportunity to continue next fall semester! The energy in the Webex made me feel very comfortable, although I was totally nervous to present - leading to a very chaotic presentation on my end - sorry! Thank you for your engagement in my presentation and follow-up questions and suggestions for furthering my research next semester. I hope you all finish this semester strong and get some much-needed rest and relaxation this summer. I will be grinding away at 2 more courses to stay on track for graduation in May of 2025.
Here is one last photo of Dante with my brother.... to give you a feel for his size. My brother is close to 6 feet tall and Dante towers over him when he stretches all the way out!
Hello again! This week's full moon brought out the crazy in my life! A lot of interesting events, but at least my daughter had a break ...
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Here's to another exciting week! I began my research project in the lab this week. Most of my data collection is done at home, since my...
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Back for the second half of the semester and I have to say, although I was catching up on schoolwork and unpacking the rest of my boxes, I ...
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What a week! I sold my house and moved into a new townhouse with my daughter and Dante. Very exciting and exhausting all at the same time. ...