#sigmaxi

[xiaoguogeng]

Sigma Xi - Ivy Geng.pptx

Evaluation economic and environmental cost for onsite and offsite composting

Hi! Here's my powerpoint presentation for my project. Hope you enjoy it and feel free to ask questions!

Thank you~

[xiaoguogeng]

Abstract

Evaluating the Economic and Environmental Cost for Onsite and Offsite Composting

Author: Xiaoguo Geng

With people getting increasingly familiar with the concept of climate change adaptation, composting has become a popular way to show people’s actions on protecting the earth. In 2018, the EPA estimated that 2.6 million tons of food (4.1% of food waste) was made into compost. However, there are two different kinds of composting: sending waste to a composting company (offsite composting) or composting at the place where waste creates (onsite composting). The author conducted a case study at a high school in Pennsylvania, US., designed the Bokashi composting experiment and compared the economic cost and carbon emission for the onsite composting and offsite composting at the school. The study finds that the cost of 1 kg of food waste under 100 times used for onsite composting is $ 0.29 and that for offsite composting is $0.22 (24% reduction). However, in this case, the onsite composting causes 0.014 kgCO2e per kg of food waste, while the offsite composting generates 0.035 kgCO2e per kg. Switching from offsite to onsite composing would then result in a reduction of 21kgCO2e per kg. Therefore, onsite composting costs are higher but have more environmental benefits than offsite composting.

[tonyzifengtang]

Sigma Xi Student Research Showcase PPT.pptx

Sigma Xi Student Research Showcase Competition 2022 Powerpoint Presentation

Here is the link to my technical power point presentation on my project. Feedback and questions are always appreciated! 

Thank you and enjoy!

[tonyzifengtang]

Abstract

Title: Novel biomarkers within extracellular vesicles for the identification of traumatic brain injury severity.

Authors: Tony Zifeng Tang1,4, Yingxin Zhao1, Stefan H. Bossmann2, Massoud Motamedi1, Bartosz Szczesny1,3, *

Departments of 1Ophthalmology and Visual Sciences, 3Anesthesiology, 4Neuroscience Graduate Program, University of Texas Medical Branch, Galveston, TX, USA; 2Department of Cancer Biology, The University of Kansas Medical Center, Kansas City, KS, USA

*Correspondence: [email protected]

Abstract body: In 2019, it was estimated that roughly 155 people died each day from traumatic brain injury (TBI) related effects in the United States. The current diagnosis of TBI include a neurological exam such as Glasgow Coma Scale (GCS) and imaging tests (CT, MRI) both of which are time consuming and require dedicated resources that may not be readily available in resource-challenged environments such as rural emergency rooms, sports arenas, and battlefields. Thus, there is an urgent need for the rapid identification of novel biomarkers in liquid biopsies for an early detection and quantitative monitoring of TBI severity. Based on our preliminary data and recently published study, we propose that amounts of circulating cell free DNA (ccf-DNA) particularly of mitochondrial origin and brain-type specific markers, present in circulating extracellular vesicles (EV’s), represent a novel class of biomarkers for TBI. In this project, we subjected 8–10-week-old C57BL6 male mice to mild TBI using the closed head weight drop model followed by isolation of blood plasma at several time points post injury. We have characterized the number and size distribution of EV’s post injury, together with the origin and amount of ccf-DNA released in the EV’s. Furthermore, we have performed proteomic analysis of isolated EVs and discovered several novel protein biomarkers that are both up- and downregulated across various time points post-injury. Our findings suggest ccf-DNA, along with EVs’ biomarkers, could potentially be used as diagnostic tools for the rapid, accurate assessment of TBI occurrence and severity.

Keywords: biomarker, concussion/mTBI, diagnostics, blood brain barrier, neurocritical care.

[tonyzifengtang]

Discussion section

What did you think about my research project? Please share your thoughts by clicking on the date of this box for the discussion section! Thank you!

[tonyzifengtang]

A short personal video about me and my research!

[qualatrice]

Happy 12th Deltaversary 29 Elements of Fortitude! ❤️🥰 🐘 #SP08 #SigmaXi (at Raleigh, North Carolina) https://www.instagram.com/p/B-nxIu0hXsa/?igshid=7nrihncrygk3

[qualatrice]

Happy 12th Deltaversary 29 Elements of Fortitude! ❤️🥰 🐘 #SP08 #SigmaXi (at Raleigh, North Carolina) https://www.instagram.com/p/B-nv6R8hP2o/?igshid=hgzhvby5wvxu