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Introduction to CT Perfusion Imaging of the Brain.
No full textCT Perfusion (CTP) scanning of the brain is an essential part of the currently used diagnostic algorithm in the management of patients presenting with acute stroke. The current stroke imaging workup is initiated with a noncontrast head CT to rule out a possible hemorrhagic cause of the stroke symptoms or an intracranial hematoma which would represent a contraindication for intravenous lysis treatment. According to the current literature, CTP scans of the brain are of particular benefit for stroke patients arriving within 5-24 hours following the onset of symptoms or with unknown onset of symptoms such as wake-up strokes, which are unlikely to benefit from intravenous thrombolytic treatment, but will potentially benefit from intra-arterial thrombolysis or thrombectomy. CTP is used, ultimately to determine the total amount of ischemic cerebral tissue and to estimate the amount of salvageable cerebral tissue, to determine a potential benefit from endovascular therapy. The interpretation of CTP images is based on the evaluation of different perfusion parameter maps. The cerebral perfusion maps [1] include cerebral blood volume (CBV), cerebral blood flow (CBF), and perfusion delay maps, with mean transit time (MTT) and time to peak (TTP) maps most commonly used. A perfusion defect on CBV with perfusion defects matching in size and location on CBF and MTT or TTP maps indicate nonsalvageable cerebral tissue. In case of a normal CBV map, perfusion defects on MTT/TTP and CBF maps represent cerebral tissue at risk for infarct or salvageable cerebral tissue. Perfusion defects that are matching on all perfusion maps to include CBV are also referred to as core infarct i.e. non-salvageable tissue, as opposed to possible areas of salvageable cerebral tissue adjacent to the core infarct, called penumbra. Patients with a significant amount of penumbra with smaller core are candidates for endovascular therapy.https://digitalcommons.xula.edu/build_xula/1005/thumbnail.jp
The Link between Social Media Usage and Natural Hair Discrimination
Full text linkSince slavery, African Americans have been negatively impacted by Eurocentric beauty standards in America which favors the White majority. This has caused for natural hair to be discriminated against for centuries. As time has passed, African Americans have learned to appreciate their culture, beauty, and hair. The Natural Hair Movement on social media has improved society’s view on natural hair, but Eurocentric beauty standards are still very much present on all media platforms. I hypothesize that a lot of time spent on social media negatively influences views on natural hair compared to non-natural hair on African American women. Participants are mainly African American women who are freshmen to senior students from Xavier University of Louisiana. This study is a non-experimental correlational study done explicitly online, and two surveys were used to measure the two variables. The correlation between social media usage and ratings of natural and non-natural hairstyles on African American was found insignificant. Significance was found within the difference between the hairstyles ratings. One natural hairstyle is found to be the most beautiful and attractive while the other natural hairstyle received the least positive ratings in all categories. The non-natural hairstyles were rated the most formal and professional. Based on the results, progress has been made in regards to natural hair discrimination, but not all natural hairstyles are being accepted. In future research, the focus should be on how natural hair is viewed in the workplace and at formal events by participants of various ages, races, and genders
St Joseph Feast Day Mardi Gras Indian Celebration
No full textBlack masking Indians wearing handmade suits and masks parading on St. Joseph\u27s feast night through the streets of the historic Treme neighborhood in New Orleans. This video recounts the celebration of Victor Harris\u27s continuous masking and tribal leadership on the ritual night of procession, March 19, 2018 and the publication of Fire in Hole: The Spirit Work of Fi Yi Yi & Mandingo Warriors by Rachel Breunlin and Jeffrey David Ehrenreich from theUniversity of New Orleans Press, 2018..https://digitalcommons.xula.edu/masked/1020/thumbnail.jp
Python 101 (in class recording)
No full textAn introduction to Python 3 workshop sponsored by the Xavier Data Visualization Lab. This tutorial covers the basics of variables, loops, conditionals (if/else) and object oriented programming.
This workshop is intended to be a first taste of the Python programming language!
If you don\u27t have Python 3 or Jupyter installed on your computer, you can complete the workshop in the virtual environment here: https://repl.it/languages/python3https://digitalcommons.xula.edu/data_instruct/1008/thumbnail.jp
2 - Visualizing Wealth and Personal Finance
Full text linkPart 2 of Visualizing Wealth and Personal Finance - creating and understanding a monthly budget!https://digitalcommons.xula.edu/data_instruct/1007/thumbnail.jp
R: Input and output basics with plotting!)
Full text linkA basic tutorial of input/outputting in R, which also covers the basics of R studio! Learn to restructure data and save new files and plots.https://digitalcommons.xula.edu/data_instruct/1013/thumbnail.jp
In Silico Unravelling Pathogen-Host Signaling Cross-Talks via Pathogen Mimicry and Human Protein-Protein Interaction Networks
No full textPathogen-host protein interactions are fundamental for pathogens to manipulate host signaling pathways and subvert host immune defense. For most pathogens, very few or no experimental studies have been conducted to investigate their signaling cross-talks with host. In this study, we propose a computational framework to validate the biological assumption that human protein–protein interaction (PPI) networks alone are sufficient to infer pathogen-host PPIs via pathogen functional mimicry. Pathogen functional mimicry assumes that a pathogen functionally mimics and substitutes host counterpart proteins in order for the pathogen to get involved in or hijack the host cellular processes. Through pathogen functional mimicry defined via gene ontology (GO) semantic similarity, we first use the known human PPIs as templates to infer pathogen-host PPIs, and the PPIs are further used as training data to build an l2-regularized logistic regression model for novel pathogen-host PPI prediction. Independent tests on the experimental data from human immunodeficiency virus and Francisella tularensis validate the effectiveness of the proposed pathogen functional mimicry technique. Performance comparisons also show that the proposed technique y excels the existing pathogen sequence mimicry approaches and transfer learning methods. The proposed framework provides a new avenue to study the experimentally less-studied pathogens in the worst scenarios that very few or no experimental pathogen-host PPIs are available. As two case studies, we apply the proposed framework to Salmonella typhimurium and Human respiratory syncytial virus to reconstruct the pathogen-host PPI networks and further investigate the interference of these two pathogens with human immune signaling and transcription regulatory system
Interview with Ansel Augustine, former director of the Office of Black Catholic Ministries for the Archdiocese of New Orleans.
No full textThis is a video interview of Ansel Augustine by Dr. Kim Vaz-Deville.
Ansel Augustine, D.Min is the Executive Director of Cultural Diversity and Outreach for the Archdiocese of Washington, D.C and a faculty member of the Institute of Black Catholic Studies at Xavier University of Louisiana. Dr. Augustine is the former director of the Office of Black Catholic Ministries for the Archdiocese of New Orleans. He is a drummer, spiritual advisor, and future Medicine Man, in the black masking Indian tribe, Wild Tchoupitoulas. For more information about the tribe visit blackindians.com.https://digitalcommons.xula.edu/masked/1026/thumbnail.jp
Interview wtih The Witch Doctor, Medicine Man, Black Hawk Voodoo Chief, Divine Prince Ty Emmecca.
No full textThis video features an interview with the Witch Doctor, Medicine Man, Black Hawk Voodoo Chief, Divine Prince Ty Emmecca who masks in his handmade Black Hawk inspired suit in 2018. He is an ordained and licensed minister with the Universal Life Church House of the Divine Prince is a Voodoo Spiritual Church.https://digitalcommons.xula.edu/masked/1027/thumbnail.jp