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Articles 1861 - 1890 of 15224
Full-Text Articles in Entire DC Network
Recoverability For Optimized Quantum F-Divergences, Li Gao, Mark M. Wilde
Recoverability For Optimized Quantum F-Divergences, Li Gao, Mark M. Wilde
Faculty Publications
The optimized quantum f -divergences form a family of distinguishability measures that includes the quantum relative entropy and the sandwiched R'enyi relative quasi-entropy as special cases. In this paper, we establish physically meaningful refinements of the data-processing inequality for the optimized f -divergence. In particular, the refinements state that the absolute difference between the optimized f -divergence and its channel-processed version is an upper bound on howwell one can recover a quantum state acted upon by a quantum channel, whenever the recovery channel is taken to be a rotated Petz recovery channel.Not only do these results lead to physically meaningful …
Introgression Of Maize Diversity For Drought Tolerance: Subtropical Maize Landraces As Source Of New Positive Variants, Pedro Augusto Medeiros Barbosa, Roberto Fritsche-Neto, Marcela Carvalho Andrade, César Daniel Petroli, Juan Burgueño, Giovanni Galli, Martha C. Willcox, Kai Sonder, Víctor A. Vidal-Martínez, Ernesto Sifuentes-Ibarra, Terence Luke Molnar
Introgression Of Maize Diversity For Drought Tolerance: Subtropical Maize Landraces As Source Of New Positive Variants, Pedro Augusto Medeiros Barbosa, Roberto Fritsche-Neto, Marcela Carvalho Andrade, César Daniel Petroli, Juan Burgueño, Giovanni Galli, Martha C. Willcox, Kai Sonder, Víctor A. Vidal-Martínez, Ernesto Sifuentes-Ibarra, Terence Luke Molnar
Faculty Publications
Current climate change models predict an increased frequency and intensity of drought for much of the developing world within the next 30 years. These events will negatively affect maize yields, potentially leading to economic and social instability in many smallholder farming communities. Knowledge about the genetic resources available for traits related to drought tolerance has great importance in developing breeding program strategies. The aim of this research was to study a maize landrace introgression panel to identify chromosomal regions associated with a drought tolerance index. For that, we performed Genome-Wide Association Study (GWAS) on 1326 landrace progenies developed by the …
Zeta Potential Measurements For Surface Modification Of Plastic Substrates For Nanofluidic Biosensors, Qinhan Liu
Zeta Potential Measurements For Surface Modification Of Plastic Substrates For Nanofluidic Biosensors, Qinhan Liu
LSU Master's Theses
Polymeric materials have revealed their great potentials in micro- and nano- fluidic devices for biosensing. Their advantages include low cost, various physicochemical properties, well-developed fabrication, and surface modification protocols comparing with traditional materials such as silicon or glass. Surface modification consists an essential step in fabrication of polymer-based biosensors. A proper characterization is required to justify the effectiveness of modifications on polymer surface. For nanofluidic devices, special phenomena such as overlapped electrical double layer, ion rectification and electroosmosis flow can dominate the behavior of single molcules. The concept of surface charge density plays a key role in nanofluidic devices due …
Ligo's Quantum Response To Squeezed States, L. Mcculler, S. E. Dwyer, A. C. Green, Haocun Yu, K. Kuns, L. Barsotti, C. D. Blair, D. D. Brown, A. Effler, M. Evans, A. Fernandez-Galiana, P. Fritschel, V. V. Frolov, N. Kijbunchoo, G. L. Mansell, F. Matichard, N. Mavalvala, D. E. Mcclelland, T. Mcrae, A. Mullavey, D. Sigg, B. J.J. Slagmolen, M. Tse, T. Vo, R. L. Ward, C. Whittle, R. Abbott, C. Adams, R. X. Adhikari, A. Ananyeva, S. Appert, K. Arai, J. S. Areeda
Ligo's Quantum Response To Squeezed States, L. Mcculler, S. E. Dwyer, A. C. Green, Haocun Yu, K. Kuns, L. Barsotti, C. D. Blair, D. D. Brown, A. Effler, M. Evans, A. Fernandez-Galiana, P. Fritschel, V. V. Frolov, N. Kijbunchoo, G. L. Mansell, F. Matichard, N. Mavalvala, D. E. Mcclelland, T. Mcrae, A. Mullavey, D. Sigg, B. J.J. Slagmolen, M. Tse, T. Vo, R. L. Ward, C. Whittle, R. Abbott, C. Adams, R. X. Adhikari, A. Ananyeva, S. Appert, K. Arai, J. S. Areeda
Faculty Publications
Gravitational wave interferometers achieve their profound sensitivity by combining a Michelson interferometer with optical cavities, suspended masses, and now, squeezed quantum states of light. These states modify the measurement process of the LIGO, VIRGO and GEO600 interferometers to reduce the quantum noise that masks astrophysical signals; thus, improvements to squeezing are essential to further expand our gravitational view of the Universe. Further reducing quantum noise will require both lowering decoherence from losses as well more sophisticated manipulations to counter the quantum back-action from radiation pressure. Both tasks require fully understanding the physical interactions between squeezed light and the many components …
Genetic Variants Associated With Beta-Cell Function And Insulin Sensitivity Potentially Influence Bile Acid Metabolites And Gestational Diabetes Mellitus In A Chinese Population, Qiulun Zhou, Ying Wang, Yuqin Gu, Jing Li, Hui Wang, Junhong Leng, Weiqin Li, Zhijie Yu, Gang Hu, Ronald Ching Wan Ma, Zhong Ze Fang, Xilin Yang, Guozhi Jiang
Genetic Variants Associated With Beta-Cell Function And Insulin Sensitivity Potentially Influence Bile Acid Metabolites And Gestational Diabetes Mellitus In A Chinese Population, Qiulun Zhou, Ying Wang, Yuqin Gu, Jing Li, Hui Wang, Junhong Leng, Weiqin Li, Zhijie Yu, Gang Hu, Ronald Ching Wan Ma, Zhong Ze Fang, Xilin Yang, Guozhi Jiang
Population and Public Health Science Faculty Publications
Introduction To investigate associations between genetic variants related to beta-cell (BC) dysfunction or insulin resistance (IR) in type 2 diabetes (T2D) and bile acids (BAs), as well as the risk of gestational diabetes mellitus (GDM). Research design and methods We organized a case-control study of 230 women with GDM and 217 without GDM nested in a large prospective cohort of 22 302 Chinese women in Tianjin, China. Two weighted genetic risk scores (GRSs), namely BC-GRS and IR-GRS, were established by combining 39 and 23 single nucleotide polymorphisms known to be associated with BC dysfunction and IR, respectively. Regression and mediation …
Dosimetric Validation Of A System To Treat Moving Tumors Using Scanned Ion Beams That Are Synchronized With Anatomical Motion, Michelle Lis, Wayne Newhauser, Marco Donetti, Moritz Wolf, Timo Steinsberger, Athena Paz, Christian Graeff
Dosimetric Validation Of A System To Treat Moving Tumors Using Scanned Ion Beams That Are Synchronized With Anatomical Motion, Michelle Lis, Wayne Newhauser, Marco Donetti, Moritz Wolf, Timo Steinsberger, Athena Paz, Christian Graeff
Faculty Publications
Purpose: The purpose of this study was to validate the dosimetric performance of scanned ion beam deliveries with motion-synchronization to heterogenous targets. Methods: A 4D library of treatment plans, comprised of up to 10 3D sub-plans, was created with robust and conventional 4D optimization methods. Each sub-plan corresponded to one phase of periodic target motion. The plan libraries were delivered to a test phantom, comprising plastic slabs, dosimeters, and heterogenous phantoms. This phantom emulated range changes that occur when treating moving tumors. Similar treatment plans, but without motion synchronization, were also delivered to a test phantom with a stationary target …
Spatiotemporal Variability Of Soil Water Δ18o And Δ2h Reveals Hydrological Processes In Two Floodplain Soils, Amanda Ceming-Barbato
Spatiotemporal Variability Of Soil Water Δ18o And Δ2h Reveals Hydrological Processes In Two Floodplain Soils, Amanda Ceming-Barbato
LSU Master's Theses
The movement of water through soil is preferential and heterogeneous. Subsurface interactions between mobile flows and the soil matrix are not uniform and are therefore difficult to predict through time and space. The use of stable isotopes of hydrogen (2H) and oxygen (18O) as conservative tracers of water movement is improving understanding of soil hydrological processes, yet field-scale observations of isotopic variability remain scarce despite implications for identifying dominant hydrologic processes. We sampled two adjacent soils at a ridge-swale topography floodplain forest to determine soil water isotopic variability at a 20 cm depth resolution in soils …
Influence Of Planting Date, Maturity Group, Harvest Aids And Fungicide Application On Soybean (Glycine Max (L.) Seed Quality, Ana Priscila Campos
Influence Of Planting Date, Maturity Group, Harvest Aids And Fungicide Application On Soybean (Glycine Max (L.) Seed Quality, Ana Priscila Campos
LSU Master's Theses
Field studies evaluated the influence of planting date, maturity group, and harvest timing on soybean yield and seed quality at the LSU AgCenter Northeast (NERS), Macon Ridge, and Dean Lee Research Stations in 2018-2020. In addition, the influence of harvest aid and fungicide application on seed quality impact from delayed harvest and environment was investigated at NERS in 2019 and 2020 in both field and environmentally controlled growth chambers. Soybean yield was maximized when maturity group IV and V soybean varieties were planted between Mid-April and Mid-May. Earlier and later planting dates did not result in maximized yield. Planting date …
Fine Focus Microscope Control, Martin Feldman
Fine Focus Microscope Control, Martin Feldman
College of Engineering Patents
According to some embodiments of the present invention, a fine focus microscope includes an objective lens for collecting light from an object being imaged, and a tube lens for forming a first image from light received from the objective lens. The fine focus microscope further includes a fine focus lens for forming a second image from the first image, and an eyepiece for forming a third image from the second image, wherein the third image is viewable by a user. The fine focus microscope further includes a field lens for directing light from the second image to the eyepiece, and …
Benthic Nutrient Fluxes Across Subtidal And Intertidal Habitats In Breton Sound In Response To River-Pulses Of A Diversion In Mississippi River Delta, Robert R. Twilley, Silke Rick, Daniel C. Bond, Justin Baker
Benthic Nutrient Fluxes Across Subtidal And Intertidal Habitats In Breton Sound In Response To River-Pulses Of A Diversion In Mississippi River Delta, Robert R. Twilley, Silke Rick, Daniel C. Bond, Justin Baker
Faculty Publications
We measured benthic fluxes of dissolved nutrients in subtidal sediments and intertidal soils associated with river-pulse events from Mississippi River via the operation of a river diversion struc-ture at Caernarvon, LA. Experiments measuring benthic fluxes in subtidal habitats were conducted during the early spring flood pulse (February and March) each year from 2002 to 2004, compared to benthic fluxes of intertidal habitats measured in February and March 2004. Nitrate (NO3−) uptake rates for subtidal sediments and intertidal soils depended on overlying water NO3− concentrations at near-, mid-, and far-field locations during river-pulse experiments when water temperatures were …
Biogeochemical And Hydrological Variables Synergistically Influence Nitrate Variability In Coastal Deltaic Wetlands, Alicia Sendrowski, Edward Castañeda-Moya, Robert Twilley, Paola Passalacqua
Biogeochemical And Hydrological Variables Synergistically Influence Nitrate Variability In Coastal Deltaic Wetlands, Alicia Sendrowski, Edward Castañeda-Moya, Robert Twilley, Paola Passalacqua
Faculty Publications
Coastal river deltas are centers of surface water nitrate processing, yet the mechanisms controlling spatio-temporal patterns in nutrient variability are still little understood. Nitrate fluctuations in these systems are controlled by complex interactions between hydrological and biogeochemical drivers, which act together to transport and transform inorganic nutrients. Distinguishing the contributions of these drivers and identifying wetland zones where nitrate processing is occurring can be difficult, yet is critical to make assessments of nutrient removal capacity in deltaic wetlands. To address these issues, we analyze relationships among regional “external” (river discharge, tides, wind) and local “internal” (water level, temperature, turbidity, and …
An Integrated Energy Simulation Model Of A Compressed Air System For Sustainable Manufacturing: A Time‐Discretized Approach, Vansh Vyas, Hyun Woo Jeon, Chao Wang
An Integrated Energy Simulation Model Of A Compressed Air System For Sustainable Manufacturing: A Time‐Discretized Approach, Vansh Vyas, Hyun Woo Jeon, Chao Wang
Faculty Publications
A compressed air system (CAS) is one of the most common and energy‐consuming systems in manufacturing. To practice more economically and environmentally sustainable manufacturing, manufacturers need ways to reduce the energy costs and carbon footprint, resulting from a CAS in their production systems. While preliminary energy studies on a CAS and on machining processes are available separately, existing research studies rarely analyze energy costs using a tool that considers both a CAS and production systems. Therefore, in this study, we propose an energy simulation tool that combines a CAS and a production system to evaluate the effects of a CAS …
Efficient, Low-Cost Bridge Cracking Detection And Quantification Using Deep-Learning And Uav Images, Chao Sun, Xiangyu Meng, Joshua O. Ogbebor, Shaopan Guo
Efficient, Low-Cost Bridge Cracking Detection And Quantification Using Deep-Learning And Uav Images, Chao Sun, Xiangyu Meng, Joshua O. Ogbebor, Shaopan Guo
Publications
Many bridges in the State of Louisiana and the United States are working under serious degradation conditions where cracks on bridges threaten structural integrity and public security. To ensure structural integrity and public security, it is required that bridges in the US be inspected and rated every two years. Currently, this biannual assessment is largely implemented using manual visual inspection methods, which is slow and costly. In addition, it is challenging for workers to detect cracks in regions that are hard to reach, e.g., the top part of the bridge tower, cables, mid-span of the bridge girders, and decks. This …
Genome-Wide Association And Selective Sweep Studies Reveal The Complex Genetic Architecture Of Dmi Fungicide Resistance In Cercospora Beticola, Rebecca Spanner, Demetris Taliadoros, Jonathan Richards, Viviana Rivera-Varas, Jonathan Neubauer, Mari Natwick, Olivia Hamilton, Niloofar Vaghefi, Sarah Pethybridge, Gary A. Secor, Timothy L. Friesen, Eva H. Stukenbrock, Melvin D. Bolton
Genome-Wide Association And Selective Sweep Studies Reveal The Complex Genetic Architecture Of Dmi Fungicide Resistance In Cercospora Beticola, Rebecca Spanner, Demetris Taliadoros, Jonathan Richards, Viviana Rivera-Varas, Jonathan Neubauer, Mari Natwick, Olivia Hamilton, Niloofar Vaghefi, Sarah Pethybridge, Gary A. Secor, Timothy L. Friesen, Eva H. Stukenbrock, Melvin D. Bolton
Faculty Publications
The rapid and widespread evolution of fungicide resistance remains a challenge for crop disease management. The demethylation inhibitor (DMI) class of fungicides is a widely used chemistry for managing disease, but there has been a gradual decline in efficacy in many crop pathosystems. Reliance on DMI fungicides has increased resistance in populations of the plant pathogenic fungus Cercospora beticola worldwide. To better understand the genetic and evolutionary basis for DMI resistance in C. beticola, a genome-wide association study (GWAS) and selective sweep analysis were conducted for the first time in this species. We performed whole-genome resequencing of 190 C. beticola …
Symmetries And Geometries Of Qubits, And Their Uses, A. R.P. Rau
Symmetries And Geometries Of Qubits, And Their Uses, A. R.P. Rau
Faculty Publications
The symmetry SU(2) and its geometric Bloch Sphere rendering have been successfully applied to the study of a single qubit (spin-1/2); however, the extension of such symmetries and geometries to multiple qubits—even just two—has been investigated far less, despite the centrality of such systems for quantum information processes. In the last two decades, two different ap-proaches, with independent starting points and motivations, have been combined for this purpose. One approach has been to develop the unitary time evolution of two or more qubits in order to study quantum correlations; by exploiting the relevant Lie algebras and, especially, sub-algebras of the …
Directly Determined Properties Of Hd 97658 From Interferometric Observations, Tyler G. Ellis, Tabetha Boyajian, Kaspar Von Braun, Roxanne Ligi, Denis Mourard, Diana Dragomir, Gail H. Schaefer, Christopher D. Farrington
Directly Determined Properties Of Hd 97658 From Interferometric Observations, Tyler G. Ellis, Tabetha Boyajian, Kaspar Von Braun, Roxanne Ligi, Denis Mourard, Diana Dragomir, Gail H. Schaefer, Christopher D. Farrington
Faculty Publications
We conducted interferometric observations with the CHARA Array of transiting super-Earth host HD 97658 and measured its limb-darkened angular diameter to be theta(LD) = 0.314 +/- 0.004 mas. The combination of the angular diameter with the Gaia EDR3 parallax value with zero-point correction (pi = 46.412 +/- 0.022 mas, d =21.546 +/- 0.011 pc) yields a physical radius of R-star = 0.728 +/- 0.008 R-circle dot. We also measured the bolometric flux of the star to be F-bol = 2.42 +/- 0.05 x 10(-8) erg s(-1) cm(-2), which, together with angular size, allows a measurement of the effective temperature T-eff …
Deep Belief Network Based Audio Classification For Construction Sites Monitoring, Michele Scarpiniti, Francesco Colasante, Simone Di Tanna, Marco Ciancia, Yong Cheol Lee, Aurelio Uncini
Deep Belief Network Based Audio Classification For Construction Sites Monitoring, Michele Scarpiniti, Francesco Colasante, Simone Di Tanna, Marco Ciancia, Yong Cheol Lee, Aurelio Uncini
Faculty Publications
In this paper, we propose a Deep Belief Network (DBN) based approach for the classification of audio signals to improve work activity identification and remote surveillance of construction projects. The aim of the work is to obtain an accurate and flexible tool for consistently executing and managing the unmanned monitoring of construction sites by using distributed acoustic sensors. In this paper, ten classes of multiple construction equipment and tools, frequently and broadly used in construction sites, have been collected and examined to conduct and validate the proposed approach. The input provided to the DBN consists in the concatenation of several …
Fgf21 Prevents Low-Protein Diet-Induced Renal Inflammation In Aged Mice, Han Fang, Sujoy Ghosh, Landon C. Sims, Kirsten P. Stone, Cristal M. Hill, Denisha Spires, Daria V. Ilatovskaya, Christopher D. Morrison, Thomas W. Gettys, Krisztian Stadler
Fgf21 Prevents Low-Protein Diet-Induced Renal Inflammation In Aged Mice, Han Fang, Sujoy Ghosh, Landon C. Sims, Kirsten P. Stone, Cristal M. Hill, Denisha Spires, Daria V. Ilatovskaya, Christopher D. Morrison, Thomas W. Gettys, Krisztian Stadler
Division of Basic Science Faculty Publications
Low-protein (LP) diets extend lifespan through a comprehensive improvement in metabolic health across multiple tissues and organs. Many of these metabolic responses to protein restriction are secondary to transcriptional activation and release of FGF21 from the liver. However, the effects of an LP diet on the kidney in the context of aging has not been examined. Therefore, the goal of the current study was to investigate the impact of chronic consumption of an LP diet on the kidney in aging mice lacking FGF21. Wild-Type (WT; C57BL/6J) and FGF21 knockout (KO) mice were fed a normal protein diet (20% casein) or …
Author Correction: Human Plasma Proteomic Profiles Indicative Of Cardiorespiratory Fitness (Nature Metabolism, (2021), 3, 6, (786-797), 10.1038/S42255-021-00400-Z), Jeremy M. Robbins, Bennet Peterson, Daniela Schranner, Usman A. Tahir, Theresa Rienmüller, Shuliang Deng, Michelle J. Keyes, Daniel H. Katz, Pierre M.Jean Beltran, Jacob L. Barber, Christian Baumgartner, Steven A. Carr, Sujoy Ghosh, Changyu Shen, Lori L. Jennings, Robert Ross, Mark A. Sarzynski, Claude Bouchard, Robert E. Gerszten
Author Correction: Human Plasma Proteomic Profiles Indicative Of Cardiorespiratory Fitness (Nature Metabolism, (2021), 3, 6, (786-797), 10.1038/S42255-021-00400-Z), Jeremy M. Robbins, Bennet Peterson, Daniela Schranner, Usman A. Tahir, Theresa Rienmüller, Shuliang Deng, Michelle J. Keyes, Daniel H. Katz, Pierre M.Jean Beltran, Jacob L. Barber, Christian Baumgartner, Steven A. Carr, Sujoy Ghosh, Changyu Shen, Lori L. Jennings, Robert Ross, Mark A. Sarzynski, Claude Bouchard, Robert E. Gerszten
Division of Basic Science Faculty Publications
In the version of this Article originally published, the authors’ Competing Interests statement was incomplete. The statement now reads: “S.A.C. is a member of the scientific advisory boards of Kymera, PTM BioLabs and Seer and is a scientific advisor to Pfizer and Biogen. The other authors declare no competing interests.” The error has been corrected in the online version of the Article.
Population Structure, Gene Flow, And Sex-Biased Dispersal In The Reticulated Flatwoods Salamander (Ambystoma Bishopi): Implications For Translocations, Steven T. Williams, Jean P. Elbers, Sabrina S. Taylor
Population Structure, Gene Flow, And Sex-Biased Dispersal In The Reticulated Flatwoods Salamander (Ambystoma Bishopi): Implications For Translocations, Steven T. Williams, Jean P. Elbers, Sabrina S. Taylor
Faculty Publications
Understanding patterns of gene flow and population structure is vital for managing threatened and endangered species. The reticulated flatwoods salamander (Ambystoma bishopi) is an endangered species with a fragmented range; therefore, assessing connectivity and genetic population structure can inform future conservation. Samples collected from breeding sites (n = 5) were used to calculate structure and gene flow using three marker types: single nucleotide polymorphisms isolated from potential immune genes (SNPs), nuclear data from the major histocompatibility complex (MHC), and the mitochondrial control region. At a broad geographical scale, nuclear data (SNP and MHC) supported gene flow and little structure (FST …
Hydraulically-Vulnerable Trees Survive On Deep-Water Access During Droughts In A Tropical Forest, Rutuja Chitra-Tarak, Chonggang Xu, Salomón Aguilar, Kristina J. Anderson-Teixeira, Jeff Chambers, Matteo Detto, Boris Faybishenko, Rosie A. Fisher, Ryan G. Knox, Charles D. Koven, Lara M. Kueppers, Nobert Kunert, Stefan J. Kupers, Nate G. Mcdowell, Brent D. Newman, Steven R. Paton, Rolando Pérez, Laurent Ruiz, Lawren Sack, Jeffrey M. Warren, Brett T. Wolfe, Cynthia Wright, S. Joseph Wright, Joseph Zailaa, Sean M. Mcmahon
Hydraulically-Vulnerable Trees Survive On Deep-Water Access During Droughts In A Tropical Forest, Rutuja Chitra-Tarak, Chonggang Xu, Salomón Aguilar, Kristina J. Anderson-Teixeira, Jeff Chambers, Matteo Detto, Boris Faybishenko, Rosie A. Fisher, Ryan G. Knox, Charles D. Koven, Lara M. Kueppers, Nobert Kunert, Stefan J. Kupers, Nate G. Mcdowell, Brent D. Newman, Steven R. Paton, Rolando Pérez, Laurent Ruiz, Lawren Sack, Jeffrey M. Warren, Brett T. Wolfe, Cynthia Wright, S. Joseph Wright, Joseph Zailaa, Sean M. Mcmahon
Faculty Publications
Deep-water access is arguably the most effective, but under-studied, mechanism that plants employ to survive during drought. Vulnerability to embolism and hydraulic safety margins can predict mortality risk at given levels of dehydration, but deep-water access may delay plant dehydration. Here, we tested the role of deep-water access in enabling survival within a diverse tropical forest community in Panama using a novel data-model approach. We inversely estimated the effective rooting depth (ERD, as the average depth of water extraction), for 29 canopy species by linking diameter growth dynamics (1990–2015) to vapor pressure deficit, water potentials in the whole-soil column, and …
Effects Of Testosterone Undecanoate On Performance During Multi-Stressor Military Operations: A Trial Protocol For The Optimizing Performance For Soldiers Ii Study, Alyssa N. Varanoske, Melissa N. Harris, Callie Hebert, Emily E. Howard, Neil M. Johannsen, Steven B. Heymsfield, Frank L. Greenway, Lee M. Margolis, Harris R. Lieberman, David D. Church, Arny A. Ferrando, Jennifer C. Rood, Stefan M. Pasiakos
Effects Of Testosterone Undecanoate On Performance During Multi-Stressor Military Operations: A Trial Protocol For The Optimizing Performance For Soldiers Ii Study, Alyssa N. Varanoske, Melissa N. Harris, Callie Hebert, Emily E. Howard, Neil M. Johannsen, Steven B. Heymsfield, Frank L. Greenway, Lee M. Margolis, Harris R. Lieberman, David D. Church, Arny A. Ferrando, Jennifer C. Rood, Stefan M. Pasiakos
Clinical Research Faculty Publications
Background: Previously, young males administered 200 mg/week of testosterone enanthate during 28 days of energy deficit (EDef) gained lean mass and lost less total mass than controls (Optimizing Performance for Soldiers I study, OPS I). Despite that benefit, physical performance deteriorated similarly in both groups. However, some experimental limitations may have precluded detection of performance benefits, as performance measures employed lacked military relevance, and the EDef employed did not elicit the magnitude of stress typically experienced by Soldiers conducting operations. Additionally, the testosterone administered required weekly injections, elicited supra-physiological concentrations, and marked suppression of endogenous testosterone upon cessation. Therefore, this …
Global Flash Drought Monitoring Using Surface Soil Moisture, Vinit Sehgal, Nandita Gaur, Binayak P. Mohanty
Global Flash Drought Monitoring Using Surface Soil Moisture, Vinit Sehgal, Nandita Gaur, Binayak P. Mohanty
Faculty Publications
Abrupt onset and swift intensification characterize flash droughts. Global surface soil moisture (θRS) from NASA's Soil Moisture Active Passive (SMAP) satellite can facilitate a near-real-time assessment of emerging flash droughts at a 36-km footprint. However, a robust flash drought monitoring using θRS must account for the (a) short observation record of SMAP, (b) nonlinear geophysical controls over θRS dynamics, and (c) emergent meteorological drivers of flash droughts. We propose a new method for near-real-time characterization of droughts using Soil Moisture Stress (SMS, drought stress) and Relative Rate of Drydown (RRD, drought stress intensification rate)—developed using SMAP θRS (March 2015–May 2021), …
Patient-Reported Outcomes After Metabolic Surgery Versus Medical Therapy For Diabetes: Insights From The Stampede Randomized Trial, Ali Aminian, Sangeeta R. Kashyap, Kathy E. Wolski, Stacy A. Brethauer, John P. Kirwan, Steven E. Nissen, Deepak L. Bhatt, Philip R. Schauer
Patient-Reported Outcomes After Metabolic Surgery Versus Medical Therapy For Diabetes: Insights From The Stampede Randomized Trial, Ali Aminian, Sangeeta R. Kashyap, Kathy E. Wolski, Stacy A. Brethauer, John P. Kirwan, Steven E. Nissen, Deepak L. Bhatt, Philip R. Schauer
Division of Basic Science Faculty Publications
Objective:The aim of this study was to investigate the long-term effects of medical and surgical treatments of type 2 diabetes mellitus (T2DM) on patient-reported outcomes (PROs).Background:Robust data on PROs from randomized trials comparing medical and surgical treatments for T2DM are lacking.Methods:The Surgical Treatment And Medications Potentially Eradicate Diabetes Efficiently (STAMPEDE) trial showed that 5 years after randomization, Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) were superior to intensive medical therapy (IMT) alone in achieving glycemic control in patients with T2DM and obesity. A subset of 104 patients participating in the STAMPEDE trial were administered two generic health-related quality of …
Effects Of Experimental Sleep Restriction On Ambulatory And Sleep Blood Pressure In Healthy Young Adults: A Randomized Crossover Study, Naima Covassin, Jan Bukartyk, Prachi Singh, Andrew D. Calvin, Erik K. St Louis, Virend K. Somers
Effects Of Experimental Sleep Restriction On Ambulatory And Sleep Blood Pressure In Healthy Young Adults: A Randomized Crossover Study, Naima Covassin, Jan Bukartyk, Prachi Singh, Andrew D. Calvin, Erik K. St Louis, Virend K. Somers
Clinical Research Faculty Publications
Although insufficient sleep is associated with increased cardiovascular risk, evidence of a causal relationship is lacking. We investigated the effects of prolonged sleep restriction on 24-hour ambulatory blood pressure (BP) and other cardiovascular measures in 20 healthy young participants (aged 23.4±4.8 years, 9 females), who underwent a randomized, controlled, crossover, 16-day inpatient study consisting of 4 days of acclimation, 9 days of sleep restriction (4 hours of sleep/night) or control sleep (9 hours), and 3 days of recovery. Subjects consumed a weight maintenance diet with controlled nutrient composition throughout. A 24-hour BP (primary outcome) and cardiovascular biomarkers were measured repeatedly. …
Cage's Imitation Game: Cheap Imitation And Song Books Through The Sketches, Jeffrey Perry
Cage's Imitation Game: Cheap Imitation And Song Books Through The Sketches, Jeffrey Perry
Faculty Publications
The theme of John Cage’s Song Books (1970), according to Cage, is contained in the statement “We connect Satie with Thoreau” (Cage 1970a, 1). Previous studies of Cage’s Song Books have not asked what I feel to be obvious questions: how, precisely, does Cage connect Satie with Thoreau? To what end? And how does Cage connect to Satie and Thoreau (and to the other sources from which he borrows)? I make use of Cage’s sketch materials to seek answers. I examine three of the Solos for Voice from Song Books that make use of the cheap-imitation procedure that Cage had …
Machine Learning Applied To K-Bentonite Geochemistry For Identification And Correlation: The Ordovician Hagan K-Bentonite Complex Case Study, Achim D. Herrmann, John T. Haynes, Richard M. Robinet, Norlene R. Emerson
Machine Learning Applied To K-Bentonite Geochemistry For Identification And Correlation: The Ordovician Hagan K-Bentonite Complex Case Study, Achim D. Herrmann, John T. Haynes, Richard M. Robinet, Norlene R. Emerson
Faculty Publications
Altered tephras (K-bentonites) are of great importance for calibration of the geologic time scale, for local, regional, and global correlations, and paleoenvironmental reconstructions. Thus, de-finitive identification of individual tephras is critical. Single crystal geochemistry has been used to differentiate tephra layers, and apatite is one of the phenocrysts commonly occurring in tephras that has been widely used. Here, we use existing and newly acquired analytical datasets (electron probe micro-analyzer [EPMA] data and laser ablation ICP-MS [LA-ICP-MS] data, respectively) of apatite in several Ordovician K-bentonites that were collected from localities about 1200 km apart (Minne-sota/Iowa/Wisconsin and Alabama, United States) to test …
Development Of Novel Ultra-High Performance Engineered Cementitious Composites (Uhp-Ecc) For Durable And Resilient Transportation Infrastructure, Gabriel A. Arce, Marwa Hassan, Daniel E. Game
Development Of Novel Ultra-High Performance Engineered Cementitious Composites (Uhp-Ecc) For Durable And Resilient Transportation Infrastructure, Gabriel A. Arce, Marwa Hassan, Daniel E. Game
Publications
The objective of this study was to develop novel UHP-ECC materials utilizing readily available ingredients in Region 6 for the construction and repair of transportation infrastructure. Phase one of this study focused on the development of ultra-high strength cementitious matrices by evaluating the effects of ingredient selection and mixture proportioning on the materials’ compressive strength. Variables evaluated included the mass ratios of silica fume to fly ash (SF/FA), supplementary cementitious materials to cement (SCMs/C), and ordinary sand to microsilica sand (OS/MS). Phase two of the study focused on the development of UHP-ECC materials. To this end, based on the knowledge …
Investigating The Determinants Of Student Low Enrollment In Historically Black Colleges And Universities (Hbcus): The Case Of One Hbcu In The South, Anthony Trumaine Jackson
Investigating The Determinants Of Student Low Enrollment In Historically Black Colleges And Universities (Hbcus): The Case Of One Hbcu In The South, Anthony Trumaine Jackson
LSU Doctoral Dissertations
There is an undeniable fact that enrollment management efforts on academic campuses have become an integral part of campus finance and the backbone of accreditation. Many Historically Black Colleges and Universities (HBCUs) are on the verge of collapsing and even losing their accreditations due to low enrollment, a decline that has been observed in recent decades.
Therefore, this study investigated why students are not enrolling in HBCUs. The study further explored the perceived factors that are likely to contribute to low student enrollment at HBCUs and the role financial matters play in student enrollment. To address this gap in the …
Engineering The Surface Of Fe3o4 Nanoparticles For Catalytic And Magnetic Applications, Natalia Da Silva Moura
Engineering The Surface Of Fe3o4 Nanoparticles For Catalytic And Magnetic Applications, Natalia Da Silva Moura
LSU Doctoral Dissertations
With the rapid depletion of the U.S. energy resources coupled with population growth, heat management technologies must be improved to sustain our quality of life. Precisely, in catalysis, it is estimated that only ~50% of the energy supplied to the reactor is used for product conversion due to dissipation losses. Among the emerging technologies with a promising reduction in heat losses is induction heating, offering targeted heat delivery with magnetic nanoparticles. Under alternating magnetic fields (AMF), these nanoparticles can absorb the energy from Radio-Frequency (RF) fields and dissipate it as heat on the nanoparticle surface. This in situ heat generation …