Digital Commons Network^™

Novel Optimal Multisensor Placement For Indoor Rectilinear Line-Of-Sight Coverage, Prasanga Neupane, Guannan Liu, Hsiao Chun Wu, Shih Yu Chang, Jinwei Ye

Faculty Publications

Optimal multisensor placement/deployment for an arbitrary indoor geometry still remains very challenging nowadays. It is preferable to minimize the number of sensors which can still cover the entire indoor space with a balanced load. However, this multi-objective problem is quite complex in practice. In this work, we will study this critical multisensor placement problem mathematically and algorithmically and propose a systematic approach to tackle this problem. In this paper, we focus on the line-of-sight (LoS) coverage within a rectilinear indoor environment and the sensors' locations are restricted on the perimeter. Our proposed new approach consists of two stages. First, a …

Recursive And Viterbi Estimation For Semi-Markov Chains, Robert J. Elliott, W. P. Malcolm

Journal of Stochastic Analysis

No abstract provided.

A Student's Pathway To Success: Understanding The Connectivity Between High School Counselors' Self- Efficacy And College And Career Advising, Amanda Belanger Lacerte

LSU Doctoral Dissertations

The purpose of this qualitative study was to understand how a high school counselor’s perceived self-efficacy impacts high school student advising sessions as it pertains to the student’s program of study and course selection. The foundation of this study was grounded in Bandura’s (1986) Social Cognitive Theory (SCT). This single case study was conducted at The Red Stick School located in an urban area in the Deep South. The study included 5 high school counselors as participants who participated in virtual interviews. Explanation building was the qualitative analytical technique used to analyze the data and explain how and/or why students …

Diffusional Fractionation Of Helium Isotopes In Silicate Melts, Haiyang Luo, Bijaya Karki, Dipta B. Ghosh, Huiming Bao

Faculty Publications

Estimating Helium (He) concentration and isotope composition of the mantle requires quantifying He loss during magma degassing. The knowledge of diffusional He isotope fractionation in silicate melts may be essential to constrain the He loss. Isotopic mass dependence of He diffusion can be empirically expressed as D3He/D4He = (4/3)^β, where D is the diffusivity of a He isotope. However, no studies have reported any β values for He in silicate melts due to technical challenges in both experiments and computations. Here, molecular dynamics simulations based on deep neural network potentials trained by ab initio data …

The N-Dimensional Quadratic Heisenberg Algebra As A “Non–Commutative” Sl(2,C), Luigi Accardi, Andreas Boukas, Yun-Gang Lu

Journal of Stochastic Analysis

No abstract provided.

Rough Paths And Regularization, André O. Gomes, Alberto Ohashi, Francesco Russo, Alan Teixeira

Journal of Stochastic Analysis

No abstract provided.

Differentiating Hurricane Deposits In Coastal Sedimentary Records: Two Storms, One Layer, But Different Processes, Marianne E. Dietz, Kam-Biu Liu, Thomas A. Bianchette, Denson Smith

Faculty Publications

No abstract provided.

Anticipating And Adapting To The Future Impacts Of Climate Change On The Health, Security And Welfare Of Low Elevation Coastal Zone (Lecz) Communities In Southeastern Usa, Thomas Allen, Joshua Behr, Anamaria Bukvic, Ryan S.D. Calder, Kiki Caruson, Charles Connor, Christopher D’Elia, David Dismukes, Robin Ersing

Faculty Publications

No abstract provided.

Fall Facts, 2021, Louisiana State University

Fall Facts

No abstract provided.

Louisiana Agriculture Fall, 2021, Lsu Agcenter

Louisiana Agriculture

No abstract provided.

Autonomous Vehicle Communication Strategies Modeled In Virtual Reality, Nick N. Ferenchak Ph.D

Data

We sought to better understand how autonomous vehicle (AV) communication strategies impact human road users’ perceptions and behaviors. More specifically, we explored the impact of different external human-machine interface (eHMI) designs on understanding, task load, comfort, trust, acceptance, and reaction time. To accomplish this, we created virtual reality (VR) scenarios where human participants interacted with AVs. Participants experienced biking, driving, and pedestrian simulators and were brought back after initial testing to explore acclimation and learning effects. In terms of perceptions, the presence of an eHMI was the strongest predictor of understanding, comfort, trust, and acceptance outcomes in the statistical models …

Developing Notification And Enforcement Systems To Communicate And Administer Bridge Load Postings, Hany Hassan, Hisham Abdu Kunnah

Data

State and local law enforcement agencies in the US strive to enforce weight restrictions on trucks and heavy vehicles travelling on public roads as a matter of public safety and as a way of safeguarding vital transportation infrastructure. This research aimed to identify plausible notification systems that can effectively communicate bridge load postings to dispatchers and drivers, investigate and suggest possible approaches to communicate potential detour routes, and identify corresponding enforcement methods required to successfully administer bridge load postings. This report discusses the current practices of bridge load posting notification and enforcement systems. Also, it presents an overview of the …

Lsu Research Fall 2021, Louisiana State University And Agricultural And Mechanical College

Research Magazine

LSU Research is published annually by the Office of Research & Economic Development, Louisiana State University.

Stability Analysis Using Generalized Sup-Delay Inequalities, Frederic Mazenc, Michael Malisoff, Miroslav Krstic

Faculty Publications

We provide a new generalization of a recent trajectory-based approach for proving global asymptotic stability properties, using new sup-delay inequalities. Our generalization eliminates the usual contractivity requirement from previous sup-delay inequality approaches. We show how the requirements of our generalization hold under less restrictive Halanay's conditions than those that were previously reported. While the usual Halanay's inequality requires the decay rate to exceed the gain, our less restrictive conditions allow the gain to exceed the decay rate. We apply our work to systems with switching delays and to a continuous-discrete system.

F21rs Sgr No. 14 (Communication On Mental Health Days), Samantha Staggs, Miles Mclendon

Student Senate Enrolled Legislation

A Resolution

To urge and request LSU Deans to send an email to students and faculty outlining effective communication regarding excused mental health days

Legacy Of A 10-Year Multidomain Lifestyle Intervention On The Cognitive Trajectories Of Individuals With Overweight/Obesity And Type 2 Diabetes Mellitus, Kathleen M. Hayden, Rebecca H. Neiberg, Joni K. Evans, José A. Luchsinger, Owen Carmichael, Gareth R. Dutton, Karen C. Johnson, Steven E. Kahn, Stephen R. Rapp, Sevil Yasar, Mark A. Espeland

Clinical Research Faculty Publications

Introduction: Weight loss and increased physical activity interventions are commonly recommended for individuals with type 2 diabetes (T2D) and overweight or obesity. We examined the impact of randomization to an intensive lifestyle intervention (ILI) on trajectories of cognitive function over 10 years in a cohort of participants in a randomized clinical trial who had T2D and overweight/obesity at baseline. Methods: Participants aged 45-76 years were enrolled in 2001-2004 and were randomized to the ILI or a diabetes support and education (DSE) condition. Cognitive function was assessed in 3,938 participants at up to 4 time points 8-18 years after randomization. General …

Ehealth Interventions Targeting Nutrition, Physical Activity, Sedentary Behavior, Or Obesity In Adults: A Scoping Review Of Systematic Reviews, Melinda J. Hutchesson, Claire Gough, Andre Matthias Müller, Camille E. Short, Megan C. Whatnall, Mavra Ahmed, Nicole Pearson, Zenong Yin, Lee M. Ashton, Carol Maher, Amanda E. Staiano, Chelsea E. Mauch, Ann Desmet, Corneel Vandelanotte

Population and Public Health Science Faculty Publications

A vast body of evidence regarding eHealth interventions for nutrition, physical activity, sedentary behavior, and obesity exists. This scoping review of systematic reviews aimed to evaluate the current level of evidence in this growing field. Seven electronic databases were searched for systematic reviews published until October 27, 2019. The systematic reviews must have included adult participants only and have evaluated eHealth behavioral interventions with the primary aim of changing nutrition, physical activity, and sedentary behavior or treating or preventing overweight and obesity. One hundred and six systematic reviews, published from 2006 to 2019, were included. Almost all (n = 98) …

The Inverse Problem For A Spectral Asymmetry Function Of The Schrödinger Operator On A Finite Interval, B. Malcolm Brown, Karl Michael Schmidt, Stephen P. Shipman, Ian Wood

Faculty Publications

For the Schrödinger equation (Formula presented.) on a finite x-interval, there is defined an “asymmetry function” (Formula presented.), which is entire of order 1/2 and type 1 in λ. Our main result identifies the classes of square-integrable potentials (Formula presented.) that possess a common asymmetry function (Formula presented.). For any given (Formula presented.), there is one potential for each Dirichlet spectral sequence.

Atlas Of Receptor Genes Expressed By The Bovine Morula And Corresponding Ligand-Related Genes Expressed By Uterine Endometrium, Lei Sang, Yao Xiao, Zongliang Jiang, Niamh Forde, Xiuchun Cindy Tian, Patrick Lonergan, Peter J. Hansen

Faculty Publications

Regulation of the mammalian embryo involves cell-signaling molecules produced by the maternal oviduct and endometrium. Here, datasets on the transcriptome of the gestational Days 5 and 6 bovine morula and Day 5 maternal endometrium were examined to identify receptor genes expressed by the morula and expression of the corresponding ligand-related genes in the endometrium. A total of 175 receptor genes were identified in the morula, including 48 encoding for growth factors or WNT signaling molecules, 25 for cytokines and chemokines, 35 involved in juxtacrine and matricellular signaling and 25 encoding for receptors for small molecules. Some of the highly-expressed pairs …

More Vigorous Efforts Are Needed To Fight Obesity, A Serious Public Health Problem In China, Gang Hu

Population and Public Health Science Faculty Publications

No abstract provided.

Consensus Revisited: Quantifying Scientific Agreement On Climate Change And Climate Expertise Among Earth Scientists 10 Years Later, Krista F. Myers, Peter T. Doran, John Cook, John E. Kotcher, Teresa A. Myers

Faculty Publications

The scientific consensus on human-caused global warming has been a topic of intense interest in recent decades. This is in part due to the important role of public perception of expert consensus, which has downstream impacts on public opinion and support for mitigation policies. Numerous studies, using diverse methodologies and measures of climate expertise, have quantified the scientific consensus, finding between 90% and 100% agreement on human-caused global warming with multiple studies converging on 97% agreement. This study revisits the consensus among geoscientists ten years after an initial survey of experts, while exploring different ways to define expertise and the …

Robotic Communications For 5g And Beyond: Challenges And Research Opportunities, Yuanwei Liu, Xiao Liu, Xinyu Gao, Xidong Mu, Xiangwei Zhou, Octavia A. Dobre, H. Vincent Poor

Faculty Publications

The ongoing surge in applications of robotics brings both opportunities and challenges for the fifth-generation (5G) and beyond (B5G) of communication networks. This article focuses on 5G/B5G-enabled terrestrial robotic communications with an emphasis on distinct characteristics of such communications. First, signal and spatial modeling for robotic communications are presented. To elaborate further, both the benefits and challenges derived from robots' mobility are discussed. As a further advance, a novel simultaneous localization and radio mapping (SLARM) framework is proposed for integrating localization and communications into robotic networks. Furthermore, dynamic trajectory design and resource allocation for both indoor and outdoor robots are …

Exploring Traffic Safety Problems And Challenges Of Older Roads’ Users In Louisiana: Causes And Countermeasures, Hany Hassan Ph.D, Saba Doulabi

Publications

It is well established that older pedestrians and drivers with 65 years and above are among the most vulnerable road users. As the number and proportion of older road users (as drivers and pedestrians) grows in many countries, as well as their share in pedestrians’ and drivers’ crashes and injuries, it behooves transportation researchers to further investigate the safety and mobility challenges of older road users. This study aims mainly to provide a comprehensive investigation of older pedestrians’ and drivers’ safety challenges. To this end, a three-fold research approach is designed to thoroughly examine older road users’ safety challenges as …

Developing Notification And Enforcement Systems To Communicate And Administer Bridge Load Postings, Hany Hassan, Hisham Abdu Kunnah

Publications

State and local law enforcement agencies in the US strive to enforce weight restrictions on trucks and heavy vehicles travelling on public roads as a matter of public safety and as a way of safeguarding vital transportation infrastructure. This research aimed to identify plausible notification systems that can effectively communicate bridge load postings to dispatchers and drivers, investigate and suggest possible approaches to communicate potential detour routes, and identify corresponding enforcement methods required to successfully administer bridge load postings. This report discusses the current practices of bridge load posting notification and enforcement systems. Also, it presents an overview of the …

An Innovative Thermo-Energy Harvesting Module For Asphalt Roadway Pavement, Seyed Amid Tahami, Samer Dessouky

Publications

The importance of green technologies for generating renewable energy and sustainable development is widely accepted. Road surfaces are exposed to solar radiation that generates thermal gradients and heat flow in the pavement layers. The heat stored can be harvested providing an untapped source of renewable energy. This report presents the design, construction, and assessment of an improved thermoelectric energy prototype for harvesting heat energy from roadway pavements. To accomplish this, various prototype designs were simulated using Finite Element (FE) analysis, followed by design construction and laboratory testing of the most promising prototypes to evaluate their power harvesting capabilities. The main …

An Examination Of Yoga To Improve Symptoms Of Post-Traumatic Stress In Firefighters, Amanda Joy Weathers-Meyer

LSU Doctoral Dissertations

Firefighters routinely experience traumatic events while executing their daily occupational duties; in turn, this elevates their risk of experiencing post-traumatic stress symptomatology (PTSS). To successfully contend with repeated trauma exposure, effective and culturally appropriate treatment options for firefighters are needed. A growing body of literature shows that yoga effectively reduces PTSS, notably with those in male-dominated fields. Despite these encouraging findings, the impact of yoga on PTSS among fire service personnel has yet to be examined. Therefore, this dissertation aimed to: (a) obtain preliminary data on yoga’s effectiveness to reduce PTSS in firefighters, (b) investigate cultural appropriateness and firefighter receptivity …

Social Marketing Campaigns To Promote Healthy Eating In Low-Income Louisiana Environments: A Mixed Methods Formative Assessment, Linda Fergus

LSU Doctoral Dissertations

A healthy diet consistent with the Dietary Guidelines for Americans (DGA) is associated with reduced risk of obesity and chronic disease. Many people do not consume a healthy diet, especially those with limited resources. The purpose of this research was to study social marketing campaigns and message design factors that promote healthy eating and improved physical activity (PA) behaviors to low-income populations in Louisiana (LA) and to describe the attitudes, beliefs, and barriers of the rural, low-income LA population regarding healthy eating.

In a scoping literature review, an evidence map of publications regarding social marketing campaigns that aim to promote …

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 …

Hydrophobically Modified Polypeptoids And Uses Thereof, Donghui Zhang, Vijay T. John, Yueheng Zhang, Sunting Xuan

College of Science Patents

A variety of hydrophobically modified polypeptoids are provided. The hydrophobically modified polypeptoids can include a polyamide backbone having a random copolymer of two or more different types of repeat units, where one or more of the repeat units have nitrogen atom having a hydrophobic substituent attached thereto. Methods of making the hydrophobically modified polypeptoids are also provided, as well as uses of the hydrophobically modified polypeptoids, for example in liposomal drug delivery.

A Modular Open-Technology Device To Measure And Adjust Concentration Of Sperm Samples For Cryopreservation, Nikolas C. Zuchowicz

LSU Master's Theses

Repositories for aquatic germplasm can safeguard the genetic diversity of species of interest to aquaculture, research, and conservation. The development of such repositories is impeded by a lack of standardization both within laboratories and across the research community. Protocols for cryopreservation are often developed ad hoc and without close attention to variables, such as sperm concentration, that strongly affect the success and consistency of cryopreservation. The wide dissemination and use of specialized tools and devices can improve processing reliability, provide data logging, produce custom hardware to address unique problems, and save costs, time, and labor. The goal of the present …