9837 research outputs found
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Zeynullah Gider
Gider, Z., Hassan, M. K., Houston R. (2024). The Heterogeneous Impact of Climate Change on House Prices. Finance Research Letters, Under Review.https://digitalcommons.morris.umn.edu/cosa2024/1014/thumbnail.jp
MLCP of Red Bull
Red Bull is a marketer and distributor of one of the first major sports drinks to be introduced into the world, called the same name: Red Bull energy. Since the inception of the drink in the mid 1980’s by Dietrich Mateschitz in Austria as an attempt to create an alternative to coffee, the drink and brand of the Red Bull organization have exploded into one of the most popular and recognizable organizations of all time. The brand pushes the idea of their product giving the greatest boost of energy, and their slogan “Red Bull gives you wings!” reinforces the idea to consumers; with their drink, anything is possible. This has encouraged the global love of Red Bull from consumers, and the drink is sure to be found anywhere you go from grocery stores to gas station convenience stores
Providing Beginners with Interactive Exploration of Error Messages in Clojure
Programmers are imperfect, and will often make mistakes when programming and create a program error, for example, attempting to divide by zero. When a computer tries to run a program with an error, the program will halt and present the details of the error to the user in the form of an error message. These error messages are often very jargon-heavy, and are not designed to be palatable to a novice programmer. This creates significant friction for new programmers trying to learn programming languages. This work is a part of an ongoing project (called Babel) led by Elena Machkasova in an attempt to ease this friction in the Clojure programming language. Currently, Babel software is able to replace standard error messages with ones that are more helpful for a beginner audience. My contribution to this project is an exploration of potential tools to effectively display information about errors in an interactive and intuitive manner. The most promising of these tools up to this point has been Morse, created by the company Cognitect, owned by Nubank. As this project continues to explore the possibilities of Morse and how it can integrate with the existing Babel system, we are putting together potential setups that novice programmers can use to effectively understand and explore the causes of the errors they come across. This project presents the setups that have been developed and discuss their benefits and tradeoffs in helping novice programmers understand error messages.https://digitalcommons.morris.umn.edu/urs_2024/1001/thumbnail.jp
Legal Process Durations in Domestic Violence Cases
Slow court case processing is a significant concern, particularly in regard to their adverse implications for survivors of serious crimes such as domestic abuse and sexual assault. This study investigates a number of factors that may influence the duration of court case proceedings using court records from three Minnesota counties. Focusing on cases of domestic violence, sexual assault, kidnapping, harassment, stalking, and various other sex crimes, we employ survival analysis methods to explore the effects of various factors on the duration of court case processing. Our analysis considers the effects of factors such as type of crime, form of legal representation, judge, and various defendant characteristics. Our goal is to identify major factors that contribute to delays in court proceedings, providing helpful insight for advocacy groups and crime victims about what they can expect during trial. We find significant differences in completion durations between counties and between crimes charged. However, when we adjust for differences between judges such as the number and complexity of cases assigned to them, there is no evidence of county differences.https://digitalcommons.morris.umn.edu/urs_2024/1005/thumbnail.jp
Isolation and Analysis of R130D Malate Dehydrogenase (MDH)
Malate Dehydrogenase (MDH) is the enzyme that catalyzes the ninth step of the citric acid cycle, a regenerative step in the metabolism of glucose in which malate is converted to oxaloacetate. Conformational changes in the active loop region of MDH along with the coenzyme NAD+ drive catalysis. Previous studies suggested that mutating positively charged amino acids to negatively charged amino acids at residue 130 decreased the enzymatic activity of MDH. We hypothesized that if we change arginine 130 (positively charged amino acid) to aspartate (negatively charged amino acid), then the enzymatic activity of MDH would significantly decrease. In e. Coli cells, site-directed mutagenesis was performed to create the mutation (R130D). The mutated protein was purified using nickel affinity chromatography and confirmed by Bradford assay and SDS-PAGE gel of the protein purity. The kinetics of the mutated protein were measured and compared to the wild-type to examine the effects of the mutation. We found R130D has a lower Vmax and higher Km than wild-type MDH, suggesting that the mutant MDH protein catalyzes the reaction at a much slower rate, and the substrate oxaloacetate had a reduced binding affinity to the enzyme. Learning more about which amino acid sequences of MDH are important in its metabolic function has important implications regarding the regulation of carbohydrate metabolism, specifically the citric acid cycle.https://digitalcommons.morris.umn.edu/urs_2024/1006/thumbnail.jp
Sunyaev-Zeldovich Effect in the Intra-Cluster Medium
This paper covers the Sunyaev-Zeldovich effect, it’s derivation, and it’s applications in astronomy. The effect is a result of inverse Compton scattering in a cloud of hot charged particles, causing an increase in the temperature of the the cosmic microwave background radiation passing through the cloud. This change in temperature can be measured, and used to calculate the physical properties of the structure in question. This paper focuses on the a method used by Adam et al. (2017) to find a temperature map of the intra-cluster medium
Is There a Long-Distance Truck Driver Shortage and Will Teenaged Interstate Truckers Fix It?
https://digitalcommons.morris.umn.edu/tafs/1072/thumbnail.jp