Digital Commons Network^™

The Politics Of Fat And Gender In The Ancient World, Susan E. Hill

Faculty Publications

No abstract provided.

Genome-Wide Coancestry Reveals Details Of Ancient And Recent Male-Driven Reticulation In Baboons, Erik F. Sørensen, R. Alan Harris, Liye Zhang, Muthuswamy Raveendran, Lukas F.K. Kuderna, Jerilyn A. Walker, Jessica M. Storer, Martin Kuhlwilm, Claudia Fontsere, Lakshmi Seshadri, Christina M. Bergey, Andrew S. Burrell, Juraj Bergman, Jane E. Phillips-Conroy, Fekadu Shiferaw, Kenneth L. Chiou, Idrissa S. Chuma, Julius D. Keyyu, Julia Fischer, Marie Claude Gingras, Sejal Salvi, Harshavardhan Doddapaneni, Mikkel H. Schierup, Mark A. Batzer, Clifford J. Jolly, Sascha Knauf, Dietmar Zinner, Kyle K.H. Farh, Tomas Marques-Bonet, Kasper Munch, Christian Roos, Jeffrey Rogers

Faculty Publications

Baboons (genus Papio) are a morphologically and behaviorally diverse clade of catarrhine monkeys that have experienced hybridization between phenotypically and genetically distinct phylogenetic species. We used high-coverage whole-genome sequences from 225 wild baboons representing 19 geographic localities to investigate population genomics and interspecies gene flow. Our analyses provide an expanded picture of evolutionary reticulation among species and reveal patterns of population structure within and among species, including differential admixture among conspecific populations. We describe the first example of a baboon population with a genetic composition that is derived from three distinct lineages. The results reveal processes, both ancient and recent, …

Reproductive Asynchrony Within Social Groups Of Female Eastern Wild Turkeys, Erin E. Ulrey, Michael J. Chamberlain, Bret A. Collier

Faculty Publications

Coordination in timing of reproduction is driven by multiple ecological and sociobiological processes for a wide array of species. Eastern wild turkeys (Meleagris gallopavo silvestris) use a male dominance polygynous mating system, where males communicate with females via elaborate courtship displays and vocalizations at display sites. Most females prefer to mate with dominant males; therefore, asynchronous breeding and nesting may occur which can disproportionately influence individual fitness within breeding groups. For female wild turkeys, there are reproductive advantages associated with earlier nesting. As such, we evaluated reproductive asynchrony within and between groups of GPS-tagged female eastern wild turkeys based on …

Contrasting Responses Of Atlantic And Pacific Tropical Cyclone Activity To Atlantic Multidecadal Variability, Huanping Huang, William D. Collins, Christina M. Patricola, Yohan Ruprich-Robert, Paul A. Ullrich, Alexander J. Baker

Faculty Publications

This research assesses the influences of Atlantic Multidecadal Variability (AMV) on global tropical cyclones (TCs) using two large ensembles of idealized global climate model simulations with opposite signs of AMV forcings superimposed (i.e., AMV+ and AMV–). We first detect TCs and then compare TC activity by basin in the two AMV experiments. We find contrasting responses of Atlantic and Pacific TC frequency to the AMV anomalies. Compared to AMV–, AMV+ significantly increases TC frequency in the North Atlantic, including those making landfalls. The increase is explained by warmer sea surface temperature, higher relative humidity, increased relative vorticity, and weaker vertical …

The Coralhydro2k Database: A Global, Actively Curated Compilation Of Coral Δ18o And Sr/Ca Proxy Records Of Tropical Ocean Hydrology And Temperature For The Common Era, Rachel M. Walter, Hussein R. Sayani, Thomas Felis, Kim M. Cobb, Nerilie J. Abram, Ariella K. Arzey, Alyssa R. Atwood, Logan D. Brenner, Émilie P. Dassié, Kristine L. Delong, Bethany Ellis, Julien Emile-Geay, Matthew J. Fischer, Nathalie F. Goodkin, Jessica A. Hargreaves, K. Halimeda Kilbourne, Hedwig Krawczyk, Nicholas P. Mckay, Andrea L. Moore, Sujata A. Murty, Maria Rosabelle Ong, Riovie D. Ramos, Emma V. Reed, Dhrubajyoti Samanta, Sara C. Sanchez, Jens Zinke

Faculty Publications

The response of the hydrological cycle to anthropogenic climate change, especially across the tropical oceans, remains poorly understood due to the scarcity of long instrumental temperature and hydrological records. Massive shallow-water corals are ideally suited to reconstructing past oceanic variability as they are widely distributed across the tropics, rapidly deposit calcium carbonate skeletons that continuously record ambient environmental conditions, and can be sampled at monthly to annual resolution. Climate reconstructions based on corals primarily use the stable oxygen isotope composition (δ18O), which acts as a proxy for sea surface temperature (SST), and the oxygen isotope composition of seawater (δ18Osw), a …

Mathematics Library News, Aaron Lercher

Faculty Publications

Mathematics Library News is an LSU Libraries newsletter for members of the Mathematics and Experimental Statistics Departments, published roughly once each semester.

Cotton Blight Identification With Ground Framed Canopy Photo-Assisted Multispectral Uav Images, Changwei Wang, Yongchong Chen, Zhipei Xiao, Xianming Zeng, Shihao Tang, Fei Lin, Luxiang Zhang, Xuelian Meng, Shaoqun Liu

Faculty Publications

Cotton plays an essential role in global human life and economic development. However, diseases such as leaf blight pose a serious threat to cotton production. This study aims to advance the existing approach by identifying cotton blight infection and classifying its severity at a higher accuracy. We selected a cotton field in Shihezi, Xinjiang in China to acquire multispectral images with an unmanned airborne vehicle (UAV); then, fifty-three 50 cm by 50 cm ground framed plots were set with defined coordinates, and a photo of its cotton canopy was taken of each and converted to the L*a*b* color space as …

Study On The Thermospheric Density Distribution Pattern During Geomagnetic Activity, Lirong Yin, Lei Wang, Lijun Ge, Jiawei Tian, Zhengtong Yin, Mingzhe Liu, Wenfeng Zheng

Faculty Publications

The atmospheric density of the thermosphere is a fundamental parameter for spacecraft launch and orbit control. Under magnetic storm conditions, the thermospheric atmospheric density experiences significant fluctuations, which have a negative impact on spacecraft control. Exploring thermospheric density during geomagnetic storms can help to mitigate the effects of such events. Research on the inversion of accelerometer measurements for different satellites and the variations of atmospheric density under extreme conditions is still in its infancy. In this paper, the distribution of atmospheric density during three geomagnetic storms is investigated from the inversion results of the Swarm-C accelerometer. Three major geomagnetic storms …

Multidecadal Pre- And Post-Collapse Dynamics Of The Northern Larsen Ice Shelf, Shujie Wang, Hongxing Liu, Richard B. Alley, Kenneth Jezek, Patrick Alexander, Karen E. Alley, Zhengrui Huang, Lei Wang

Faculty Publications

Rapid retreat of Antarctic ice shelves in a warmer climate remains challenging to predict, contributing to uncertainties in projections of sea level rise. The collapse of the Larsen B Ice Shelf on the Antarctic Peninsula in 2002 was perhaps the most dramatic example of ice shelf retreat on record. Despite a general consensus that regional climate warming is associated with ice shelf collapse, knowledge of the precise details leading to and following collapse is limited. Here we examine a comprehensive set of satellite observations, modeling experiments, and climate reanalysis data to elucidate calving behavior, flow dynamics, and mechanical conditions of …

Gifts And Commodities: A Dialectical Thought Experiment For Sublation, Ruirui Zhang, Joseph D’Andrea, Chunmin Lang

Faculty Publications

The core motivation for this study is the realization that the Sustainable Development Goals (SDGs) encounter temporary obstacles, conflicts, or inconsistencies that impede progress and generalization. According to the authors, sustainable development across social, environmental, and economic dimensions is unlikely to occur without redefining the meaning and recalibrating the metrics used to measure commodities. These meanings and metrics must align with values such as general reciprocity, morality, and the common good, going beyond mere calculations of means and ends and personal preferences. The research has three primary objectives: first, to compare and reassess the meanings and responsibilities assigned to “items” …

The Critique Is On The Glass: The Extension Of Museum-Presentation Techniques To Substantively Advance Law School Pedagogy, Rachel H. Smith

Faculty Publications

(Excerpt)

In The Writing’s on the Wall: Using Multimedia Presentation Techniques from the Museum World to Improve Law School Pedagogy, Professor Cecilia A. Silver demonstrates how traditional law school teaching would benefit from embracing museum techniques. The Writing’s on the Wall offers museum presentation principles as a corrective to old-fashioned law teaching. And they certainly are. But they can be much more.

The museum techniques that the article describes are a starting point for thinking about museums as a useful analog to law schools, especially in confronting the biases, hierarchies, and injustices of the past and present. The Writing’s …

Intersectional Management: An Analysis Of Cooperation And Competition On American Public Lands, Robin M. Rotman, Abigail M. Hunt

Faculty Publications

The United States government holds public lands in trust for the whole of the American people. This article focuses on National Monuments under the Antiquities Act. It argues that the federal government should renew its approach to the management of these lands by incorporating principles of environmental justice and long- term environmental viability. The article begins by examining the historical and legal foundations of federal lands in the United States, with a focus on the Antiquities Act. It then reflects on recent litigation and political controversy surrounding Bears Ears National Monument and Grand Staircase–Escalante National Monument, to illustrate how the …

Total Daily Energy Expenditure Has Declined Over The Past Three Decades Due To Declining Basal Expenditure, Not Reduced Activity Expenditure, John R. Speakman, Jasper M.A. De Jong, Srishti Sinha, Klaas R. Westerterp, Yosuke Yamada, Hiroyuki Sagayama, Philip N. Ainslie, Liam J. Anderson, Lenore Arab, Kweku Bedu-Addo, Stephane Blanc, Alberto G. Bonomi, Pascal Bovet, Soren Brage, Maciej S. Buchowski, Nancy F. Butte, Stefan G.J.A. Camps, Jamie A. Cooper, Richard Cooper, Sai Krupa Das, Peter S.W. Davies, Lara R. Dugas, Ulf Ekelund, Sonja Entringer, Terrence Forrester, Barry W. Fudge, Melanie Gillingham, Santu Ghosh, Annelies H. Goris, Michael Gurven, Lewis G. Halsey, Catherine Hambly, Hinke H. Haisma

Faculty Publications

Obesity is caused by a prolonged positive energy balance1,2. Whether reduced energy expenditure stemming from reduced activity levels contributes is debated3,4. Here we show that in both sexes, total energy expenditure (TEE) adjusted for body composition and age declined since the late 1980s, while adjusted activity energy expenditure increased over time. We use the International Atomic Energy Agency Doubly Labelled Water database on energy expenditure of adults in the United States and Europe (n = 4,799) to explore patterns in total (TEE: n = 4,799), basal (BEE: n = 1,432) and physical activity energy expenditure (n = 1,432) over time. …

The Flower Garden Banks Siderastrea Siderea Coral As A Candidate Global Boundary Stratotype Section And Point For The Anthropocene Series, Kristine L. Delong, Kylie Palmer, Amy J. Wagner, Mudith M. Weerabaddana, Niall Slowey, Achim D. Herrmann, Nicolas Duprey, Alfredo Martínez-García, Jonathan Jung, Irka Hajdas, Neil L. Rose, Sarah L. Roberts, Lucy R. Roberts, Andrew B. Cundy, Pawel Gaca, J. Andrew Milton, Handong Yang, Simon D. Turner, Chun Yuan Huang, Chuan Chou Shen, Jens Zinke

Faculty Publications

The proposed Anthropocene Global Boundary Stratotype Section and Point (GSSP) candidate site of West Flower Garden Bank (27.8762°N, 93.8147°W) is an open ocean location in the Gulf of Mexico with a submerged coral reef and few direct human impacts. Corals contain highly accurate and precise (<±1 year) internal chronologies, similar to tree rings, and their exoskeletons are formed of aragonite and can be preserved in the rock record. Here we present results from a large Siderastrea siderea coral (core 05WFGB3; 1755–2005 CE) sampled with annual and monthly resolutions that show clear markers of global and regional human impacts. Atmospheric nuclear bomb testing by-products (14C, 239+240Pu) have clear increases in this coral starting in 1957 for 14C and the first increase in 1956 for 239+240Pu (potential bases for the Anthropocene GSSP). Coral δ13C declined especially after 1956 consistent with the Suess effect resulting from the burning of fossil fuels. Coral skeletal δ15N starts to increase in 1963 corresponding with the increase in agricultural fertilizers. Coral Hg concentrations (1933–1980) loosely track fluctuations in industrial pollution and coral Ba/Ca increases from 1965–1983 when offshore oil operations expand after 1947. Coral temperature proxies contain the 20th-century global warming trend whereas coral growth declines during this interval.

North Flinders Reef (Coral Sea, Australia) Porites Sp. Corals As A Candidate Global Boundary Stratotype Section And Point For The Anthropocene Series, Jens Zinke, Neal E. Cantin, Kristine L. Delong, Kylie Palmer, Arnoud Boom, Irka Hajdas, Nicolas Duprey, Alfredo Martínez-García, Neil L. Rose, Sarah L. Roberts, Handong Yang, Lucy R. Roberts, Andrew B. Cundy, Pawel Gaca, James Andy Milton, Grace Frank, Adam Cox, Sue Sampson, Genevieve Tyrrell, Molly Agg, Simon D. Turner

Faculty Publications

Corals are unique in the suite of proposed Anthropocene Global Boundary Stratotype Section and Point (GSSP) archives, as living organisms that produce aragonite exoskeletons preserved in the geological record that contain highly accurate and precise (<±1 year) internal chronologies. The GSSP candidate site North Flinders Reef in the Coral Sea (Australia) is an offshore oceanic reef, and therefore less vulnerable to local human influences than those closer to the coast. Here, we present geochemical records from two Porites sp. corals sampled at an annual to pluri-annual (i.e. 3–5 years) resolution that shows clear global and regional human impacts. Atmospheric nuclear bomb testing by-products (14C,239+240Pu) show a clear increase in the Flinders Reef corals coincident with well-dated nuclear testing operations. By contrast, the radionuclides 241Am and 137Cs are present at low or undetectable levels, as are spheroidal carbonaceous fly-ash particles. Coral δ13C shows centennial variability likely influenced by growth effects in the 18th century and with a progression to lower values starting in 1880 CE and accelerating post-1970 CE. The latter may be related to the Suess effect resulting from 13C-depleted fossil fuel burning. Coral δ15N decreased between 1710 and 1954 CE with a reversal post-1954 CE. Coral temperature proxies indicate prominent centennial variability with equally warm conditions in the 18th and end of 20th century. However, the exact mechanisms responsible for the mid-20th century changes in these parameters need to be scrutinised in further detail. Plain Language summary: This work proposes a candidate natural archive for the official marker of the Anthropocene that geologists will use to mark this important interval in time. Our candidate is a live coral from North Flinders Reef in the Coral Sea (Australia), located 150 km east of the Great Barrier Reef, a location that is remote from direct local human influences. Corals are a unique archive of tropical ocean change because they incorporate the geochemical signature from seawater into their limestone skeleton during their long life-spans. Here we investigated a number of geochemical markers in yearly growth layers of the corals to define several markers for the Anthropocene based on changes in temperature, water chemistry, chemicals from pollution and fertilisers, radioactive products from nuclear bomb testing, and by-products from burning fossil fuels. We have detected clear human influences in several of these markers.

The Interaction Of Rurality And Rare Cancers For Travel Time To Cancer Care, Tracy Onega, Jennifer Alford-Teaster, Chris Leggett, Andrew Loehrer, Julie E. Weiss, Erika L. Moen, Catherine C. Pollack, Fahui Wang

Faculty Publications

Purpose: Geographic access to cancer care is known to significantly impact utilization and outcomes. Longer travel times have negative impacts for patients requiring highly specialized care, such as for rare cancers, and for those in rural areas. Scant population-based research informs geographic access to care for rare cancers and whether rurality impacts that access. Methods: Using Medicare data (2014-2015), we identified prevalent cancers and cancer-directed surgeries, chemotherapy, and radiation. We classified cancers as rare (incidence <6/100,000/year) or common (incidence ≥6/100,000/year) using previously published thresholds and categorized rurality from ZIP code of beneficiary residence. We estimated travel time between beneficiaries and providers for each service based on ZIP code. Descriptive statistics summarized travel time by rare versus common cancers, service type, and rurality. Findings: We included 1,169,761 Medicare beneficiaries (21.9% in nonmetropolitan areas), 87,399; 7.5% had rare cancers, with 9,133,003 cancer-directed services. Travel times for cancer services ranged from approximately 29 minutes (25th percentile) to 68 minutes (75th percentile). Travel times were similar for rare and common cancers overall (median: 45 vs 43 minutes) but differed by service type; 13.4% of surgeries were >2 hours away for rare cancers, compared to 8.3% for common cancers. Increasing rurality disproportionately increased travel time to surgical care for rare compared to …

Atmospheric Density Inversion Based On Swarm-C Satellite Accelerometer, Lirong Yin, Lei Wang, Jiawei Tian, Zhengtong Yin, Mingzhe Liu, Wenfeng Zheng

Faculty Publications

We used the Swarm-C accelerometer data to invert the orbital atmospheric density in this study. First, the Swarm-C satellite mission data were obtained from the ESA’s public data platform, and preliminary data error correction was performed. This paper refers to the calibration method of GRACE-A satellite accelerometer data. It adds linear temperature correction on the original basis. Moreover, this study’s accelerometer data correction results were compared with the data correction results published by the ESA. In order to explore the influence of light radiation on the accelerometer, we established a geometric model of Swarm-C to simulate the physical shape of …

Exodus Allusions In The Midsection Of The Gospel Of Matthew, Cedric E. W. Vine

Faculty Publications

Matthean scholarship is divided as to whether the first recipients of the Gospel considered themselves to be part of early formative Judaism. Within the context of this debate, this study calls for the recognition of multiple exodus allusions in the midsection of the Gospel. These allusions reveal an Evangelist who either anticipated the possible need for withdrawal from hostile host communities or, equally plausibly, affirmed an ongoing separation process.

Informe Tecnico De Los Trabajos De Campo Del Proyecto De Investigación Arqueológica Cerro San Isidro, Valle De Nepeña, Costa De Ancash -- Temporada 2022, David Chicoine, Jeisen Navarro

Faculty Publications

No abstract provided.

Classification Analysis Of Southwest Pacific Tropical Cyclone Intensity Changes Prior To Landfall, Rupsa Bhowmick, Jill C. Trepanier, Alex M. Haberlie

Faculty Publications

This study evaluates the ability of a random forest classifier to identify tropical cyclone (TC) intensification or weakening prior to landfall over the western region of the Southwest Pacific Ocean (SWPO) basin. For both Australia mainland and SWPO island cases, when a TC first crosses land after spending ≥24 h over the ocean, the closest hour prior to the intersection is considered as the landfall hour. If the maximum wind speed (Vmax) at the landfall hour increased or remained the same from the 24-h mark prior to landfall, the TC is labeled as intensifying and if the Vmax at the …

Clues From The Paint A Picture Of Earth’S Water Cycle, Kristine L. Delong, Alyssa Atwood, Andrea Moore, Sara Sanchez

Faculty Publications

No abstract provided.

Emotions In Crisis: Consequences Of Ceremonial Refugee Camp Visits To Bhutanese Refugee Camps In Nepal, Kamryn Warren

Faculty Publications

Research on refugee resettlement frequently overlooks the larger context of the experience of forced migration. As a result, the micro-level interactions between refugees and the bureaucrats who make resettlement decisions are obscured. We can better understand the socio-political dynamics between refugees and the officials deciding their resettlement cases if we approach encounters between refugees and migration officials during ceremonial visits as sites of emotional exchange. This article examines the complex socio-political emotional exchanges of power and vulnerability that underpin the refugee resettlement process through an ethnographic analysis of Bhutanese refugee camps in Nepal.

Ancient Pathogens Provide A Window Into Health And Well-Being, Cecil M. Lewis Jr., Mercy Y. Akinyi, Sharon Dewitte, Anne C. Stone

Faculty Publications

This perspective draws on the record of ancient pathogen genomes and microbiomes illuminating patterns of infectious disease over the course of the Holocene in order to address the following question. How did major changes in living circumstances involving the transition to and intensification of farming alter pathogens and their distributions? Answers to this question via ancient DNA research provide a rapidly expanding picture of pathogen evolution and in concert with archaeological and historical data, give a temporal and behavioral context for heath in the past that is relevant for challenges facing the world today, including the rise of novel pathogens.

Floodsafehome: Evaluating Financial Benefits And Savings Of Freeboard For Improved Decision-Making In Flood Risk Mitigation, Carol J. Friedland, Yong Cheol Lee, Rubayet Bin Mostafiz, Jiyoung Lee, Shifat P. Mithila, Robert V. Rohli, Md Adilur Rahim, Ehab Gnan, Monica Teets Farris

Faculty Publications

Freeboard—elevation of a structure above the base flood elevation (BFE)—is a critical component in mitigating or avoiding flood losses. However, the unrevealed benefits and savings of freeboard installation have prevented communities from adopting this approach. To improve decision-making for residents, prospective residents, and other stakeholders in flood-vulnerable communities and enhance flood risk mitigation strategies, this study presents the methodology underlying a new webtool, FloodSafeHome, that estimates comprehensively the economic benefits and savings of freeboard installation for new construction of residential buildings. Specifically, the proposed evaluation framework has been designed to calculate monthly savings for individual buildings by assessing freeboard cost, …

Modern-Day Neanderthal Genetic Lifewriting, Interspecies Romance, And The Promise Of Multispecies Autoethnography, Travis Brisini

Faculty Publications

Advances in contemporary genetic science have reshaped the narratives whereby individuals and communities make sense of their personal, family, and communal histories. In this process, unknown connections have been revealed and familiar orthodoxies disrupted. This essay examines the consequences of a particularly unusual revelation - the dawning awareness of the presence of nonhuman and archaic human DNA in human genetic lines - for efforts at writing about identity and society. In this autoethnographic account, I examine my own genetic inheritance of Neanderthal DNA, and posit a performative concept of genetic life writing that begins to unpack the complexities of this …

The Real Cost To Remain Competitive: Byu Confronts Racist Past, Darron Smith, Lori Latrice Martin

Faculty Publications

College sports is a multi-billion-dollar business, and universities are looking for ways to remain competitive, including recruiting and retaining athletes from historically underrepresented groups to predominantly white institutions (PWI), many of which have a documented history of excluding non-white students, including blacks, indigenous peoples, and other people of color (often referred to as BIPOC). This article will examine the legacy of the racist teachings, past controversies, and compromises of the Church of Jesus Christ of Latter-day Saints (LDS, Mormons) along with persistent struggles to shake off its 130-year-old racist past in efforts for its flagship school, Brigham Young University, to …

Special Issue In Honor Of Dr. Alfred L. Gardner, Jacob A. Esselstyn, Giovani Hernández-Canchola

Faculty Publications

No abstract provided.

The Rise Of Native Lordships At Pashash, A.D. 200–600, North Highlands Of Ancash, Peru, George F. Lau, Milton Luján Dávila, Jacob L. Bongers, David Chicoine

Faculty Publications

This article examines the rise of native, segmentary lordships in the highlands of north-central Peru. It reports on new excavations and mapping at the seat of a prehispanic polity, Pashash (Recuay culture), a large hilltop center that developed after the collapse of Chavín civilization. Fieldwork revealed monumental constructions and two special activity contexts radiocarbon-dated to ca. a.d. 200–400: an offering area in a large palatial compound and a room-complex with chambers closed off and sealed with feasting refuse. Multiple lines of evidence help reconstruct a regional picture for the establishment of wealthy local elites. Cultural innovations explicitly link new leaders …

Briquetage And Brine: Living And Working At The Classic Maya Salt Works Of Ek Way Nal, Belize, Heather Mckillop, E. Cory Sills

Faculty Publications

Systematic flotation survey and spatial analysis of artifacts at the submerged salt work of Ek Way Nal reveal evidence of a residence, salt kitchens, and additional activities. Ek Way Nal is one of 110 salt works associated with a Late to Terminal Classic (A.D. 600-900) salt industry known as the Paynes Creek Salt Works. Wooden posts that form the walls of 10 buildings are remarkably preserved in a peat bog below the sea floor providing an opportunity to examine surface artifacts in relation to buildings. Numerous salt kitchens have been located at the Paynes Creek Salt Works by evidence of …

Disparities In Spatial Accessibility Of Primary Care In Louisiana: From Physical To Virtual Accessibility, Fahui Wang, Yutian Zeng, Lingbo Liu, Tracy Onega

Faculty Publications

Telehealth has been widely employed and has transformed how healthcare is delivered in the United States as a result of COVID-19 pandemic. While telehealth is utilized and encouraged to reduce the cost and travel burden for access to healthcare, there are debates on whether telehealth can promote equity in healthcare services by narrowing the gap among diverse groups. Using the Two-Step Floating Catchment Area (2SFCA) and Two-Step Virtual Catchment Area (2SVCA) methods, this study compares the disparities of physical and virtual access to primary care physicians (PCPs) in Louisiana. Both physical and virtual access to PCPs exhibit similar spatial patterns …