Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Louisiana State University

Discipline
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 2041 - 2070 of 21705

Full-Text Articles in Entire DC Network

Migration And Displacement In Twenty-First Century Magical Realist Fiction, Laura Duncan Fontenot Nov 2022

Migration And Displacement In Twenty-First Century Magical Realist Fiction, Laura Duncan Fontenot

LSU Doctoral Dissertations

In “Migration and Displacement in Twenty-First Century Magical Realist Fiction” I discuss identity development and the search for belonging of displaced people within twenty-first century magical realist novels. In each instance, the characters undergo some form of change heralded by a magical moment or moments. The “magic” allows the authors to literalize underlying cultural tensions by physically altering some aspect of a character. The changes are not mere metaphors, they are literal, bodily transformations. The first stage of this process are magical thresholds that allow passage in space and time far beyond the conventions of reality. A magical threshold literalizes …


Identification Of Quantitative Trait Loci (Qtls) For Resistance To Bacterial Leaf Streak: Xanthomonas Translucens Using Qtl And Association Mapping In Three Populations Of Soft Red Winter Wheat, Benjamin Tyler Meritt Nov 2022

Identification Of Quantitative Trait Loci (Qtls) For Resistance To Bacterial Leaf Streak: Xanthomonas Translucens Using Qtl And Association Mapping In Three Populations Of Soft Red Winter Wheat, Benjamin Tyler Meritt

LSU Doctoral Dissertations

Bacterial leaf streak (BLS) and black chaff, caused by Xanthomonas translucens pv. undulosa (Xtu), can be a very destructive disease of wheat, especially in the warmer, wetter areas of the Southeastern U.S. Yield losses of up to 40 percent have been recorded in some cases in southern wheat growing regions. With no effective agronomic or chemical method of disease control, identification of genetic resistance is seen as a promising solution. Three soft red winter wheat populations (GAWN, ARK-SNP, and AGS 2060- AGS 2035 DH) representative of soft red winter wheat germplasm in the southeastern U.S. developed by …


A Field-Deployable Quartz Crystal Microbalance System For Gas Detection, Jongyoon Park Nov 2022

A Field-Deployable Quartz Crystal Microbalance System For Gas Detection, Jongyoon Park

LSU Doctoral Dissertations

Quartz crystal microbalance (QCM) has been widely studied as a mass sensing technique in laboratory environments and has shown a wide range of industrial applications such as food quality control, various forms of chemical detection, and biomolecular recognition under gas phase as well as liquid phase media. The construction of multi-sensor arrays combined with special sensor coatings enables multiple analyte detections and discrimination of multi-analyte along with statistical analysis. Despite the great sensing capabilities of QCM and growing interest in practical applications beyond the laboratory setup, most QCM studies are still performed in laboratory settings with benchtop QCM instruments. Therefore, …


Assessment And Constraint Of Mesozooplankton In Cmip6 Earth System Models, C. M. Petrik, J. Y. Luo, R. F. Heneghan, J. D. Everett, C. S. Harrison, A. J. Richardson Nov 2022

Assessment And Constraint Of Mesozooplankton In Cmip6 Earth System Models, C. M. Petrik, J. Y. Luo, R. F. Heneghan, J. D. Everett, C. S. Harrison, A. J. Richardson

Faculty Publications

Although zooplankton play a substantial role in the biological carbon pump and serve as a crucial link between primary producers and higher trophic level consumers, the skillful representation of zooplankton is not often a focus of ocean biogeochemical models. Systematic evaluations of zooplankton in models could improve their representation, but so far, ocean biogeochemical skill assessment of Earth system model (ESM) ensembles have not included zooplankton. Here we use a recently developed global, observationally based map of mesozooplankton biomass to assess the skill of mesozooplankton in six CMIP6 ESMs. We also employ a biome-based assessment of the ability of these …


The Impact Of Visual Stimuli And Properties On Restorative Effect And Human Stress: A Literature Review, Alireza Sedghikhanshir, Yimin Zhu, Melissa R. Beck, Amirhosein Jafari Nov 2022

The Impact Of Visual Stimuli And Properties On Restorative Effect And Human Stress: A Literature Review, Alireza Sedghikhanshir, Yimin Zhu, Melissa R. Beck, Amirhosein Jafari

Faculty Publications

Restorative environments are known as places where human stress can be decreased through restoration of depleted psychological resources. Since the efficiency of natural environments in restoration is supported by the literature, designing a restorative built environment can be obtained by integrating natural objects into built environments. However, various factors may lead to the failure of design intentions in real restorative environments such as visual stimuli and their properties. In addition, previous literature has widely used images and immersive virtual environments (IVEs) to deliver restorative environments in the design stage, and the impact of the delivery methods on visual properties needs …


Religiosity And Misperceptions: The Effect Of Americans’ Religious Involvement On Their (Mis)Perceptions Of Political Parties, Rehm Nathanael Maham Nov 2022

Religiosity And Misperceptions: The Effect Of Americans’ Religious Involvement On Their (Mis)Perceptions Of Political Parties, Rehm Nathanael Maham

Honors Capstones

No abstract provided.


Impact Of The Choice Of Acidic Buffers On The Electrochemical Reduction Of Hexavalent Chromium In Water, Devin D. Meche Nov 2022

Impact Of The Choice Of Acidic Buffers On The Electrochemical Reduction Of Hexavalent Chromium In Water, Devin D. Meche

Honors Capstones

No abstract provided.


In Defense Of The General: George Washington’S Aides-De-Camp And Their Campaign To Protect The Commander-In-Chief, Chloe Pellegrin Nov 2022

In Defense Of The General: George Washington’S Aides-De-Camp And Their Campaign To Protect The Commander-In-Chief, Chloe Pellegrin

Honors Capstones

No abstract provided.


Challenging The Canon; Teaching The Literary Canon In The High School Classroom, Abigail Baumgartner Nov 2022

Challenging The Canon; Teaching The Literary Canon In The High School Classroom, Abigail Baumgartner

Honors Capstones

No abstract provided.


Title Ix: A Discovery Of Its Failure To Protect Students From Sexual Harassment And Assault, Delaney Ferrer Nov 2022

Title Ix: A Discovery Of Its Failure To Protect Students From Sexual Harassment And Assault, Delaney Ferrer

Honors Capstones

No abstract provided.


Mortality Of The Crapemyrtle Bark Scale (Hemiptera: Eriococcidae) By Commercial Biopesticides Under Greenhouse And Field Conditions, Giovana Matos Franco, Yan Chen, Vinson P. Doyle, Stephen A. Rehner, Rodrigo Diaz Nov 2022

Mortality Of The Crapemyrtle Bark Scale (Hemiptera: Eriococcidae) By Commercial Biopesticides Under Greenhouse And Field Conditions, Giovana Matos Franco, Yan Chen, Vinson P. Doyle, Stephen A. Rehner, Rodrigo Diaz

Faculty Publications

The crapemyrtle bark scale (CMBS), Acanthococcus lagerstroemiae, is an important pest of crapemyrtles, Lagerstroemia spp. Biopesticides are frequently used to control soft-bodied insects; however, there is no information on their efficacy against CMBS. The objectives of this study were to test the use of selected biopesticides against CMBS under different seasons, evaluate their pathogenicity to CMBS, and determine optimum temperature for spore germination. Commercial formulations of the fungal biopesticides Isaria fumosorosea PFR97, Beauveria bassiana ANT-03, and the bacterial biopesticides Burkholderia rinojensis A396 and Chromobacterium subtsugae PRAA4-1 T were tested in greenhouse settings and did not have significant treatment effect on …


The History And Continuing Impacts Of Press Staff And Media Relations In Congress, Madelyn Cutrone Nov 2022

The History And Continuing Impacts Of Press Staff And Media Relations In Congress, Madelyn Cutrone

Honors Capstones

No abstract provided.


A Closer Look At States With Strict Abortion Laws And The Impact On Healthcare Coverage For Single, Low-Income Mothers, Amber Ledoux Nov 2022

A Closer Look At States With Strict Abortion Laws And The Impact On Healthcare Coverage For Single, Low-Income Mothers, Amber Ledoux

Honors Capstones

No abstract provided.


Burning The Candle At Both Ends: How And Why Academic Librarians Who Are Parents Experience And Combat Burnout At Work, Michael Holt, Amy Chew, Jessica Lee, Robert Taylor Nov 2022

Burning The Candle At Both Ends: How And Why Academic Librarians Who Are Parents Experience And Combat Burnout At Work, Michael Holt, Amy Chew, Jessica Lee, Robert Taylor

Faculty Publications

Academic librarians already wear many hats, juggling a multitude of skills and duties in order to meet the needs of their patrons. When one of those hats is parenthood, however, balancing work and home life can sometimes seem like an insurmountable task. In this chapter we explore how and why academic librarians who are also parents experience burnout, as well as methods used to combat burnout by examining the results of a nationally distributed mixed-methods survey. The survey also addresses practices to combat and prevent burnout, both on a personal and institutional level, and the perceptions of their effectiveness.


Hydrologic Connectivity And Residence Time Affect The Sediment Trapping Efficiency And Dissolved Oxygen Concentrations Of The Atchafalaya River Basin, Daniel E. Kroes, Richard H. Day, Michael D. Kaller, Charles R. Demas, William E. Kelso, Tiffany Pasco, Raynie Harlan, Steven Roberts Nov 2022

Hydrologic Connectivity And Residence Time Affect The Sediment Trapping Efficiency And Dissolved Oxygen Concentrations Of The Atchafalaya River Basin, Daniel E. Kroes, Richard H. Day, Michael D. Kaller, Charles R. Demas, William E. Kelso, Tiffany Pasco, Raynie Harlan, Steven Roberts

Faculty Publications

Little is known about water movement, volume, or residence time (RT), and how those characteristics affect sediment trapping efficiency (TE) and dissolved oxygen concentrations (DO) in the United States' largest remaining bottomland hardwood swamp, the Atchafalaya River Basin. To better understand these dynamics, this study used bathymetry, lidar, and stage records to determine volumes in the Basin's hydrologically distinct water management units (WMUs). Discharge measurements determined flow distribution and RT. Residence time was compared with DO to identify conditions that coincided with DO increases or decreases. Suspended sediment concentrations (SSC) were used to determine TE relative to calculated and measured …


Louisiana Black-Bellied Whistling-Duck Clutch Characteristics In The Presence Of Conspecific And Interspecific Brood Parasitism, Dylan L. Bakner, Katie E. Miranda, Kevin M. Ringelman Nov 2022

Louisiana Black-Bellied Whistling-Duck Clutch Characteristics In The Presence Of Conspecific And Interspecific Brood Parasitism, Dylan L. Bakner, Katie E. Miranda, Kevin M. Ringelman

Faculty Publications

Black-bellied Whistling-Ducks (Dendrocygna autumnalis; Whistling-Duck) are undergoing a rapid range expansion northward and now breed throughout the Southeastern United States. As a facultative cavity-nesting species, they have the potential to compete with Wood Ducks (Aix sponsa) and Hooded Mergansers (Lophodytes cucullatus) for nest sites. Little is known about Whistling-Duck breeding biology, and estimates of clutch characteristics and rates of conspecific and interspecific brood parasitism (CBP and IBP, respectively) are lacking. We monitored Whistling-Duck nests in Louisiana to describe nesting chronology, clutch size of parasitized and unparasitized (normal) nests, and hatchability (i.e., the portion of eggs that hatched) for clutches of …


Obesity 2012–2022: It's Been Quite A Party!, Eric Ravussin, Leanne M. Redman, Donna H. Ryan Nov 2022

Obesity 2012–2022: It's Been Quite A Party!, Eric Ravussin, Leanne M. Redman, Donna H. Ryan

Clinical Research Faculty Publications

No abstract provided.


Economic Freedom, Climate Culpability, And Physical Activity Indicators Among Children And Adolescents: Report Card Grades From The Global Matrix 4.0, Eun Young Lee, Patrick Abi Nader, Salomé Aubert, Silvia A. González, Peter T. Katzmarzyk, Asaduzzaman Khan, Wendy Y. Huang, Taru Manyanga, Shawnda Morrison, Diego Augusto Santos Silva, Mark S. Tremblay Nov 2022

Economic Freedom, Climate Culpability, And Physical Activity Indicators Among Children And Adolescents: Report Card Grades From The Global Matrix 4.0, Eun Young Lee, Patrick Abi Nader, Salomé Aubert, Silvia A. González, Peter T. Katzmarzyk, Asaduzzaman Khan, Wendy Y. Huang, Taru Manyanga, Shawnda Morrison, Diego Augusto Santos Silva, Mark S. Tremblay

Population and Public Health Science Faculty Publications

Background: Macrolevel factors such as economic and climate factors can be associated with physical activity indicators. This study explored patterns and relationships between economic freedom, climate culpability, and Report Card grades on physical activity-related indicators among 57 countries/jurisdictions participating in the Global Matrix 4.0. Methods: Participating countries/ jurisdictions provided Report Card grades on 10 common indicators. Information on economic freedom and climatic factors were gathered from public data sources. Correlations between the key variables were provided by income groups (ie, low- and middle-income countries/jurisdictions and high-income countries/jurisdictions [HIC]). Results: HIC were more economically neoliberal and more responsible for climate change …


Active Healthy Kids Global Alliance Global Matrix 4.0—A Resource For Physical Activity Researchers, Mark S. Tremblay, Joel D. Barnes, Iryna Demchenko, Silvia A. Gonzalez, Javier Brazo-Sayavera, Jakub Kalinowski, Peter T. Katzmarzyk, Taru Manyanga, John J. Reilly, Stephen Heung Sang Wong, Salomé Aubert Nov 2022

Active Healthy Kids Global Alliance Global Matrix 4.0—A Resource For Physical Activity Researchers, Mark S. Tremblay, Joel D. Barnes, Iryna Demchenko, Silvia A. Gonzalez, Javier Brazo-Sayavera, Jakub Kalinowski, Peter T. Katzmarzyk, Taru Manyanga, John J. Reilly, Stephen Heung Sang Wong, Salomé Aubert

Population and Public Health Science Faculty Publications

Background: This brief report provides an overview of the Active Healthy Kids Global Alliance (AHKGA); an introduction to the Global Matrix 4.0; an explanation of the value and opportunities that the AHKGA efforts and assets provide to the physical activity research, policy, practice, and advocacy community; an outline of the series of papers related to the Global Matrix 4.0 in this issue of the Journal of Physical Activity and Health; and an invitation for future involvement. Methods: The AHKGA was formed to help power the global movement to get kids moving. In 2019–2021, we recruited countries to participate in the …


Global Matrix 4.0 Physical Activity Report Card Grades For Children And Adolescents: Results And Analyses From 57 Countries, Salomé Aubert, Joel D. Barnes, Iryna Demchenko, Myranda Hawthorne, Chalchisa Abdeta, Patrick Abi Nader, José Carmelo Adsuar Sala, Nicolas Aguilar-Farias, Susana Aznar, Peter Bakalár, Jasmin Bhawra, Javier Brazo-Sayavera, Mikel Bringas, Jonathan Y. Cagas, Angela Carlin, Chen Kang Chang, Bozhi Chen, Lars Breum Christiansen, Candice Jo Anne Christie, Gabriela Fernanda De Roia, Christine Delisle Nyström, Yolanda Demetriou, Visnja Djordjic, Arunas Emeljanovas, Liri Findling Endy, Aleš Gába, Karla I. Galaviz, Silvia A. González, Kylie D. Hesketh, Wendy Yajun Huang, Omphile Hubona, Justin Y. Jeon, Danijel Jurakić, Jaak Jürimäe Nov 2022

Global Matrix 4.0 Physical Activity Report Card Grades For Children And Adolescents: Results And Analyses From 57 Countries, Salomé Aubert, Joel D. Barnes, Iryna Demchenko, Myranda Hawthorne, Chalchisa Abdeta, Patrick Abi Nader, José Carmelo Adsuar Sala, Nicolas Aguilar-Farias, Susana Aznar, Peter Bakalár, Jasmin Bhawra, Javier Brazo-Sayavera, Mikel Bringas, Jonathan Y. Cagas, Angela Carlin, Chen Kang Chang, Bozhi Chen, Lars Breum Christiansen, Candice Jo Anne Christie, Gabriela Fernanda De Roia, Christine Delisle Nyström, Yolanda Demetriou, Visnja Djordjic, Arunas Emeljanovas, Liri Findling Endy, Aleš Gába, Karla I. Galaviz, Silvia A. González, Kylie D. Hesketh, Wendy Yajun Huang, Omphile Hubona, Justin Y. Jeon, Danijel Jurakić, Jaak Jürimäe

Population and Public Health Science Faculty Publications

Background: The Global Matrix 4.0 on physical activity (PA) for children and adolescents was developed to achieve a comprehensive understanding of the global variation in children’s and adolescents’ (5–17 y) PA, related measures, and key sources of influence. The objectives of this article were (1) to summarize the findings from the Global Matrix 4.0 Report Cards, (2) to compare indicators across countries, and (3) to explore trends related to the Human Development Index and geo-cultural regions. Methods: A total of 57 Report Card teams followed a harmonized process to grade the 10 common PA indicators. An online survey was conducted …


Phytochemical Targeting Of Mitochondria For Breast Cancer Chemoprevention, Therapy, And Sensitization, Elizabeth R.M. Zunica, Christopher L. Axelrod, John P. Kirwan Nov 2022

Phytochemical Targeting Of Mitochondria For Breast Cancer Chemoprevention, Therapy, And Sensitization, Elizabeth R.M. Zunica, Christopher L. Axelrod, John P. Kirwan

Division of Basic Science Faculty Publications

Breast cancer is a common and deadly disease that causes tremendous physical, emotional, and financial burden on patients and society. Early-stage breast cancer and less aggressive subtypes have promising prognosis for patients, but in aggressive subtypes, and as cancers progress, treatment options and responses diminish, dramatically decreasing survival. Plants are nutritionally rich and biologically diverse organisms containing thousands of metabolites, some of which have chemopreventive, therapeutic, and sensitizing properties, providing a rich source for drug discovery. In this study we review the current landscape of breast cancer with a central focus on the potential role of phytochemicals for treatment, management, …


A Bibliometric Analysis Of Machine Learning Econometrics In Asset Pricing, Hector O. Zapata, Supratik Mukhopadhyay Nov 2022

A Bibliometric Analysis Of Machine Learning Econometrics In Asset Pricing, Hector O. Zapata, Supratik Mukhopadhyay

Faculty Publications

Machine learning (ML) is a novel method that has applications in asset pricing and that fits well within the problem of measurement in economics. Unlike econometrics, ML models are not designed for parameter estimation and inference, but similar to econometrics, they address, and may be better suited for, problems of prediction. While some ML methods have been applied in econometrics for decades, their success in prediction has been limited, and examples of this abound in the asset pricing literature. In recent years, the ML literature has advanced new, more efficient, computation methods for regularization, modeling nonlinearity, and improved out-of-sample prediction. …


Confidence Intervals For Relative Intensity Of Collaboration (Ric) Indicators, Joel Emanuel Fuchs, Lawrence Smolinsky, Ronald Rousseau Nov 2022

Confidence Intervals For Relative Intensity Of Collaboration (Ric) Indicators, Joel Emanuel Fuchs, Lawrence Smolinsky, Ronald Rousseau

Faculty Publications

Purpose: We aim to extend our investigations related to the Relative Intensity of Collaboration (RIC) indicator, by constructing a confidence interval for the obtained values. Design/methodology/approach: We use Mantel-Haenszel statistics as applied recently by Smolinsky, Klingenberg, and Marx. Findings: We obtain confidence intervals for the RIC indicator Research limitations: It is not obvious that data obtained from the Web of Science (or any other database) can be considered a random sample. Practical implications: We explain how to calculate confidence intervals. Bibliometric indicators are more often than not presented as precise values instead of an approximation depending on the database and …


Iss Inequalities For Vector Versions Of Halanay's Inequality And Of The Trajectory-Based Approach, Frédéric Mazenc, Michael Malisoff Nov 2022

Iss Inequalities For Vector Versions Of Halanay's Inequality And Of The Trajectory-Based Approach, Frédéric Mazenc, Michael Malisoff

Faculty Publications

Halanay's inequality is a powerful and widely used tool to prove asymptotic convergence properties of functions that arise in the study of systems with delays or continuous-discrete features. In its standard form, it applies to scalar valued functions that satisfy decay conditions, with overshoots depending on suprema of the functions over suitable intervals. Then it provides an exponential decay estimate on the scalar functions. Here, we provide vector versions of Halanay's inequality, and of the so-called trajectory based approach, both yielding input-to-state stability (or ISS) inequalities. Our proofs of the inequalities use the theory of positive systems. We apply our …


Damage Assessment, Michael M. Khonsari, Lijesh Koottaparambil Nov 2022

Damage Assessment, Michael M. Khonsari, Lijesh Koottaparambil

College of Engineering Patents

Methods of estimating tribological damage described herein include examples where varying power is applied between surfaces engaged in frictional contact. Calculations evaluate power consumed at the relevant frictional contact and temperature values may be gathered to supplement the calculated power. Instantaneous and cumulative assessments of damage are calculated based on that information. Measurements or calculations of electrical power may be used as part of the damage assessment.


Phase Contrast X-Ray Interferometry, Joyoni Dey, Narayan Bhusal, Leslie Butler, Jonathan P. Dowling, Kyungmin Ham, Varshni Singh Nov 2022

Phase Contrast X-Ray Interferometry, Joyoni Dey, Narayan Bhusal, Leslie Butler, Jonathan P. Dowling, Kyungmin Ham, Varshni Singh

College of Science Patents

A phase contrast X-ray imaging system includes: an illumination source adapted to illuminate a region of interest; a diffraction grating adapted to receive illumination from the illuminated region of interest, the diffraction grating comprising a spatial structure having a first periodicity superimposed with a second periodicity that is different from the first periodicity; and a detector adapted to detect illumination passing through the diffraction grating, wherein the spatial structure is defined by varying height and/or pitch, and wherein the spatial structure imparts a first phase dependence based on the first periodicity and an additional phase dependence based on the second …


The Uneven Reaction To Combat The Covid-19 Pandemic: Geovisualizing Of Fever Clinics In Mainland China, Guoqi Li, Zhuoshi Lv, Fahui Wang, Gang Chen, Wenjie Sun, Yuting Shi, Sijing Liu Nov 2022

The Uneven Reaction To Combat The Covid-19 Pandemic: Geovisualizing Of Fever Clinics In Mainland China, Guoqi Li, Zhuoshi Lv, Fahui Wang, Gang Chen, Wenjie Sun, Yuting Shi, Sijing Liu

Faculty Publications

The COVID-19 pandemic has exerted unprecedented impacts on the world. Since its onset, China has established a network of fever clinics as an effective strategy to aggressively isolate and screen possible patients with COVID-19 symptoms. This study presents two fever clinic maps that visualize the uneven responses to the COVID-19 pandemic at the city level in mainland China. The maps highlight more resources in the southwest, northwest, east, and south China, and paucity in the far west parts of southwest and northwest China and in the north and northeast China.


Multiscale Analysis Of Cancer Service Areas In The United States, Changzhen Wang, Tracy Onega, Fahui Wang Nov 2022

Multiscale Analysis Of Cancer Service Areas In The United States, Changzhen Wang, Tracy Onega, Fahui Wang

Faculty Publications

The purpose of delineating Cancer Service Areas (CSAs) is to define a reliable unit of analysis, more meaningful than geopolitical units such as states and counties, for examining geographic variations of the cancer care markets using geographic information systems (GIS). This study aims to provide a multiscale analysis of the U.S. cancer care markets based on the 2014–2015 Medicare claims of cancer-directed surgery, chemotherapy, and radiation. The CSAs are delineated by a scale-flexible network community detection algorithm automated in GIS so that the patient flows are maximized within CSAs and minimized between them. The multiscale CSAs include those comparable in …


Tectonism Of Late Noachian Mars: Surface Signatures From The Southern Highlands, Trishit Ruj, Goro Komatsu, Gene Schmidt, Suniti Karunatillake, Kenji Kawai Nov 2022

Tectonism Of Late Noachian Mars: Surface Signatures From The Southern Highlands, Trishit Ruj, Goro Komatsu, Gene Schmidt, Suniti Karunatillake, Kenji Kawai

Faculty Publications

Upwelling mantle plumes often instigate extensional stress within the continental crust of Earth. When stress exceeds crustal strength, extensional structures develop, reducing the effective stress and trigger magmatic processes at the crust–mantle boundary. However, such processes and their relationship to the formation of many surface structures remain poorly characterized on Mars. We identified a series of extensional structures in the southern highlands of Mars which collectively resemble continental rift zones on Earth. We further characterized these extensional structures and their surrounding region (area of ~1.8 M km2) by determining the surface mineralogy and bulk regional geochemistry of the …


A Machine Learning Approach For Detecting Rescue Requests From Social Media, Zheye Wang, Nina S.N. Lam, Mingxuan Sun, Xiao Huang, Jin Shang, Lei Zou, Yue Wu, Volodymyr V. Mihunov Nov 2022

A Machine Learning Approach For Detecting Rescue Requests From Social Media, Zheye Wang, Nina S.N. Lam, Mingxuan Sun, Xiao Huang, Jin Shang, Lei Zou, Yue Wu, Volodymyr V. Mihunov

Faculty Publications

Hurricane Harvey in 2017 marked an important transition where many disaster victims used social media rather than the overloaded 911 system to seek rescue. This article presents a machine-learning-based detector of rescue requests from Harvey-related Twitter messages, which differentiates itself from existing ones by accounting for the potential impacts of ZIP codes on both the preparation of training samples and the performance of different machine learning models. We investigate how the outcomes of our ZIP code filtering differ from those of a recent, comparable study in terms of generating training data for machine learning models. Following this, experiments are conducted …