Physical Sciences and Mathematics Commons^™

Perceived Cultural Impacts Of Climate Change Motivate Climate Action And Support For Climate Policy, Kim-Pong Tam, Angela K. Y. Leung, Brandon Koh

Research Collection School of Social Sciences

The impacts of climate change on human cultures have received increasing attention in recent years. However, the extent to which people are aware of these impacts, whether such awareness motivates climate action, and what kinds of people show stronger awareness are rarely understood. The present investigation provides the very first set of answers to these questions. In two studies (with a student sample with N = 199 from Singapore and a demographically representative sample with N = 625 from the USA), we observed a generally high level of awareness among our participants. Most importantly, perceived cultural impacts of climate change …

An Analysis Of The Effects Of Large Wildfires On The Hydrology Of Three Small Catchments In Central Chile Using Tritium-Based Measurements And Hydrological Metrics, Francisco Balocchi, Diego Rivera, José Luis Arumi, Uwe Morgenstern, Donald A. White, Richard P. Silberstein, Pablo Ramírez De Arellano

Research outputs 2022 to 2026

Wildfires are an important disturbance affecting catchments’ soil and hydrological processes within. Wildfires are predicted to increase in both frequency and severity under climate change. Here, we present measurements of tritium (3H) in surface water of three streams before and after the ‘las Máquinas’ megafire of January 2017 in central Chile and streamflow metrics. Mean transit times (MTTs) of water were calculated in three coastal catchments with the Mediterranean climate type, covered by native forest, a mixture of native forest and Pinus radiata D. Don, and P. radiata. Lumped parameter models (LPMs) were used to obtain MTTs. Tritium activities from …

Estimation Of The Optimal Nitrogen Dose In A Brachiaria Humidicola-Corn Rotation System In The Colombian Eastern Plains, K. Enciso, S. Burkart

IGC Proceedings (1993-2023)

Improving nitrogen (N) use efficiency by optimizing the N fertilizer application dose is one way to reduce greenhouse gas (GHG) emissions in agriculture and livestock production, especially in higher demanding crops such as corn. Taking a Brachiaria humidicola (Bh)-corn rotation system in the Colombian Eastern Plains, we seek to determine both the optimal economic dose (OED) and the optimal technical dose (OTD) of N, which allow to maximize income at producer level and minimize environmental impacts. This particular rotation system was chosen as research subject given the presence of the residual effect of Biological Nitrogen Inhibition (BNI) in …

Screening And Breeding For Bermudagrass Stem Maggot (Bsm) Resistance Using U.S. Bermudagrass Germplasm, W. F. Anderson, D. Hancock, L. Baxter, W. Hudson, Esteban F. Rios

IGC Proceedings (1993-2023)

Bermudagrass (Cynodon sp.) is an important perennial forage grass grown in many parts of the world. Bermudagrass Stem Maggot (BSM) (Atherigona reversura Villeneuve) is an insect pest that reduces forage yield and nutritive value if it is not controlled. The pest, native to SE Asia, was first documented in North America in 2009 and is now considered invasive. A collection of over 300 forage bermudagrass accessions was evaluated in the field for susceptibility to BSM in 2014 and 2015. Tolerant lines and susceptible checks were then evaluated for yield loss due to BSM in a replicated field study …

Physical Investigation Of Downburst Winds And Applicability To Full Scale Events, Federico Canepa

Electronic Thesis and Dissertation Repository

Thunderstorm winds, i.e. downbursts, are cold descending currents originating from cumulonimbus clouds which, upon the impingement on the ground, spread radially with high intensities. The downdraft phase of the storm and the subsequent radial outflow that is formed can cause major issues for aviation and immense damages to ground-mounted structures. Thunderstorm winds present characteristics completely different from the stationary Gaussian synoptic winds, which largely affect the mid-latitude areas of the globe in the form of extra-tropical cyclones. Downbursts are very localized winds in both space and time. It follows that their statistical investigation, by means of classical full scale anemometric …

Adaptation, Transformation And Resilience In Healthcare Comment On “Government Actions And Their Relation To Resilience In Healthcare During The Covid-19 Pandemic In New South Wales, Australia And Ontario, Canada”, David G. Angeler, Harris A. Eyre, Michael Berk, Craig R. Allen, William Hynes, Igor Linkov

School of Natural Resources: Faculty Publications

Adaptive capacity is a critical component of building resilience in healthcare (RiH). Adaptive capacity comprises the ability of a system to cope with and adapt to disturbances. However, “shocks,” such as the current coronavirus disease 2019 (COVID-19) pandemic, can potentially exceed critical adaptation thresholds and lead to systemic collapse. To effectively manage healthcare systems during periods of crises, both adaptive and transformative changes are necessary. This commentary discusses adaptation and transformation as two complementary, integral components of resilience and applies them to healthcare. We treat resilience as an emergent property of complex systems that accounts for multiple, often disparately distinct …

Examining Teacher Self-Efficacy Of General Educators In Inclusive Settings In Northwest Arkansas Secondary Schools, Marleah Hannaford

ATU Theses and Dissertations 2021 - Present

The purpose of this mixed methods study was to examine teacher self-efficacy among general education teachers in inclusive settings in the Northwest region of Arkansas. The study further explored factors that contribute to the perceived level of efficacy, and the role of teacher education programs and professional development sessions in the level of self-efficacy. For the quantitative portion of this study, 101 general education teachers from six districts in Northwest Arkansas completed a survey with Likert-style questions. Qualitative data were provided through six follow-up interviews among participants that participated in the survey. Results from the study indicate that the overall …

Zero-Knowledge Proof, Deniability And Their Applications In Blockchain, E-Voting And Deniable Secret Handshake Protocols., Somnath Panja Dr.

Doctoral Theses

In this thesis, we propose a cryptographic technique for an authenticated, end-to-end verifiable and secret ballot election. Currently, almost all verifiable e-voting systems require trusted authorities to perform the tallying process except for the DRE-i and DRE-ip systems. We have shown a weaknesses in the DRE-ip system and proposed a solution. We have modified the DRE-ip system so that no adversary can create and post a valid ballot on the public bulletin board without detection. We provide security proofs to prove the security properties of the proposed scheme. We propose two methods to store these ballots using blockchain and cloud …

Advancing Ubiquitous Collaboration For Telehealth - A Framework To Evaluate Technology-Mediated Collaborative Workflow For Telehealth, Hypertension Exam Workflow Study, Christopher Bondy Ph.D., Linlin Chen Ph.D, Pamela Grover Md, Pengcheng Shi Ph.D

Articles

Healthcare systems are under siege globally regarding technology adoption; the recent pandemic has only magnified the issues. Providers and patients alike look to new enabling technologies to establish real-time connectivity and capability for a growing range of remote telehealth solutions. The migration to new technology is not as seamless as clinicians and patients would like since the new workflows pose new responsibilities and barriers to adoption across the telehealth ecosystem. Technology-mediated workflows (integrated software and personal medical devices) are increasingly important in patient-centered healthcare; software-intense systems will become integral in prescribed treatment plans [1]. My research explored the path to …

Lake Whatcom Monitoring Project 2020/2021 Report, Angela Strecker, Michael Hilles, Joan Pickens, Robert Mitchell, Robin Matthews, Geoffrey Matthews

Lake Whatcom Annual Reports

This report describes the results from the 2020/2021 Lake Whatcom monitoring program conducted by the Institute for Watershed Studies at Western Washington University (www.wwu.edu/iws).

The major objectives in 2020/2021 were to continue long-term baseline water quality monitoring in Lake Whatcom and its major tributaries; collect storm runoff water quality data from representative streams in the watershed; and continue collection of hydrologic data from Austin and Smith Creeks.

Body Image, Quality Of Life, And Their Predicting Factors In Pregnant Women: A Cross-Sectional Study, Zeynab Rezaei Fard, Arman Azadi, Yousef Veisani

Kesmas

Pregnancy can influence women’s psychological health, including body image and quality of life. This study aimed to examine the relationship between body image and quality of life and their predicting factors in pregnant women. This cross-sectional study was conducted on 250 pregnant women referred to health centers in Ilam City, Iran. Participants were selected using a random sampling method. Data collection tools comprised a sociodemographic questionnaire, Body Image Concern Inventory (BICI), and quality of life questionnaire (Short Form-12). Data were analyzed using statistical software. The mean ± SD of body image concern and quality of life was estimated at 31.77 …

The Estimation Of Excess Mortality During The Covid-19 Pandemic In Jakarta, Indonesia, Madona Yunita Wijaya

Kesmas

Indonesia is among the countries affected by the coronavirus disease 2019 (COVID-19) pandemic, and DKI Jakarta Province recorded the highest number of deaths. This study aimed to analyze the excess mortality across five administrative cities in Jakarta stratified by gender to assess the pandemic impact on mortality. The monthly mortality data from January 2018 to December 2020 was obtained through government sources. This data helped to measure excess mortality by estimating the baseline mortality had the COVID-19 pandemic not occurred. The analysis used a linear mixed model because of its ease and flexibility in forecasting subject-specific mortality. The results showed …

The Determinants Of Covid-19 Vaccine Acceptance In Sumatra, Cindy Sidarta, Andree Kurniawan, Nata P H Lugito, Jeremia Imanuel Siregar, Veli Sungono, Rivaldo Steven Heriyanto, Novia Lauren Sieto, Devina Adella Halim, Claudia Jodhinata, Saraswati Anindita Rizki, Terry Devita Sinaga, Chintya Marcella, Felix Wijovi, Billy Susanto, Elizabeth Marcella, Johan Wibowo, Jonathan Juniard Anurantha, Michelle Imanuelly, Michele Indrawan, Nadia Khoirunnisa Heryadi

Kesmas

In light of the current coronavirus disease 2019 (COVID-19) vaccination programs being implemented worldwide, this study aimed to evaluate the COVID-19 vaccine acceptance survey in Indonesia conducted by the World Health Organization (WHO), the Ministry of Health of the Republic of Indonesia, the National Immunization Technical Advisory Group (NITAG), and the United Nations Children's Fund (UNICEF), published in November 2020. It was found that Sumatra Island having lower COVID-19 vaccine acceptance rates, with Aceh Province displaying the lowest level of vaccine acceptance. Thus, a cross-sectional study was conducted, and a logistic regression analysis was used to identify the factors affecting …

Effectiveness Of Using Information, Education, And Communication Flowchart Media In Implementation Of Early Breastfeeding Initiation, Rizna Notarianti, Sandra Fikawati, Alifani Faiz Faradhila

Kesmas

Early initiation of breastfeeding (EIB) has many benefits for both the baby and the mother. However, in Bogor City, there are still many babies who do not get EIB when they are born (33.6%). The implementation of EIB is not optimal due to the absence of standard procedures to equalize its theory and perception. This study aimed to investigate the effectiveness of using Information, Education, and Communication (IEC) flowchart media concerning the standard procedure for EIB implementation in the Primary Health Care (PHC) in Bogor City. A quasi-experimental research was conducted on 58 midwives divided into the intervention and control …

A Study On The Impact Of Occupational Fatigue On Human Performance Among Oil And Gas Workers In Indonesia, Achmad Dahlan, Baiduri Widanarko

Kesmas

Occupational fatigue is a serious problem since it may cause several issues, including deteriorating human performance. Some major accidents in the oil and gas industries were associated with the lack of human performance due to occupational fatigue. This study aimed to analyze the impact of occupational fatigue on human performance among oil and gas workers in Indonesia. This study used a cross-sectional design using a self-administered validated questionnaire to gather information on demographic (gender and age), work characteristics (work rotation, work duration, shift work model, day/night shift, job position), sleep debt, sleep quality, occupational (acute and chronic) fatigue, and at-risk …

The Economics Of Residential Solar Panels: A Comparison Of Energy Charges For Different Load Profiles, Rate Plans, And Panel Orientations, John B. Broughton, Candace E. Ybarra, Prashanth U. Nyer

Business Faculty Articles and Research

This paper examines the effect of different residential electrical load profiles (electrical energy consumption patterns within a day) on energy charges for customers with solar panels under different Southern California Edison time-of-use (TOU) rate plans. We identify the TOU plan which would be the most cost effective for solar customers with each load profile. The impact of the orientation of the solar panel array (whether it faces south or west or east) and shading patterns on electricity charges are examined. We also determine the ideal usage offset (the percentage of electricity consumption provided by the solar array) for the various …

Recent Advances In Structural Regulation On Non-Precious Metal Catalysts For Oxygen Reduction Reaction In Alkaline Electrolytes, Xue Wang, Li Zhang, Chang-Peng Liu, Jun-Jie Ge, Jian-Bing Zhu, Wei Xing

Journal of Electrochemistry

Oxygen reduction reaction (ORR) in alkaline electrolytes is an important electrochemical process for metal-air batteries and anion exchange membrane fuel cells (AEMFCs). However, the sluggish kinetics spurs intensive research on searching robust electrocatalysts. Non-precious metal catalysts (NPMCs) that can circumvent the cost and scarcity issues associated with platinum (Pt)-based materials have been pursued and the challenges lie in the performance improvement to rival Pt-based benchmarks. As the composition and structure of the NPMCs have a significant impact on the catalytic performance, precise regulation on the catalyst structure holds great promise to bridge the activity gap between NPMCs and Pt-based benchmarks. …

Facet Dependent Oxygen Evolution Activity Of Spinel Cobalt Oxides, Li-Hua Zhang, Hong-Yuan Chuai, Hai Liu, Qun Fan, Si-Yu Kuang, Sheng Zhang, Xin-Bin Ma

Journal of Electrochemistry

Water splitting is a promising technology to produce clean hydrogen if powered by renewable energies, where oxygen evolution is the rate determining step at an anode. Here we adjust the different crystal planes of the cobalt oxides catalyst to expose more effective active sites through a hydrothermal process, so as to improve the reaction activity for oxygen evolution. The samples were well characterized by TEM, SEM and XRD. Among the three synthetic crystal planes (100), (111) and (110) of spinel cobalt oxides, the (100) crystal plane has the highest intrinsic activity. Combining in-situ infrared and DFT calculations, we …

A Beginners’ Guide To Modelling Of Electric Double Layer Under Equilibrium, Nonequilibrium And Ac Conditions, Lu-Lu Zhang, Chen-Kun Li, Jun Huang

Journal of Electrochemistry

In electrochemistry, perhaps also in other time-honored scientific disciplines, knowledge labelled classical usually attracts less attention from beginners, especially those pressured or tempted to quickly jam into research fronts that are labelled, not always aptly, modern. In fact, it is a normal reaction to the burden of history and the stress of today. Against this context, accessible tutorials on classical knowledge are useful, should some realize that taking a step back could be the best way forward. This is the driving force of this article themed at physicochemical modelling of the electric (electrochemical) double layer (EDL). We begin the exposition …

Structural Degradation Of Ni-Rich Layered Oxide Cathode For Li-Ion Batteries, Jia-Yi Wang, Sheng-Nan Guo, Xin Wang, Lin Gu, Dong Su

Journal of Electrochemistry

Nickel(Ni)-rich layered oxide has been regarded as one of the most important cathode materials for the lithium-ion batteries because of its low cost and high energy density. However, the concerns in safety and durability of this compound are still challenging for its further development. On this account, the in-depth understanding in the structural factors determining its capacity attenuation is essential. In this review, we summarize the recent advances on the degradation mechanisms of Ni-rich layered oxide cathode. Progresses in the structure evolution of Ni-rich oxide are carefully combed in terms of inner evolution, surface evolution, and the property under thermal …

Mass Loading Optimization For Ethylene Glycol Oxidation At Different Potential Regions, Sheng-Nan Sun, Zhi-Chuan Xu

Journal of Electrochemistry

Designing and fabricating the electrocatalysts is attracting more and more attention in recent years due to a global interest in developing techniques for electrochemical energy conversion and storage, as well as elelectro-synthesis of valuable chemicals. The activity is one of the key performance parameters for electrocatalysts, while the observed activity can be affected by mass loading of electrocatalysts. Here, we take cobalt oxide (Co₃O₄)/graphite paper electrode (Co₃O₄/GPE) as a model electrode to demon-strate how the mass loading of Co₃O₄ catalyst influences ethylene glycol (EG) oxidation in alkaline (KOH) by …

Frontier Of Electrochemistry, Hong-Gang Liao, Zhang-Quan Peng, Wen-Bin Cai

Journal of Electrochemistry

No abstract provided.

The 10th Annual Computer Science Workshop, Submissions, Abstract Template, Computer Science Department

Computer Science Faculty Proceedings & Presentations

This is the abstract template for the 10th Annual Computer Science Graduate Research Workshop (2022). To learn more about this workshop, please visit: https://digitalcommons.unomaha.edu/csworkshop/2022/.

Essays On Social Networks, Workplace Ties And Labor Productivity., Swati Sharma Dr.

Doctoral Theses

The role of social contacts in finding jobs, career mobility and other labor market outcomes is well acknowledged both theoretically and empirically in labor economics. The existence of individuals’ social networks at their workplace is a pervasive phenomenon, leading to the widespread use of social ties for information, influence and referrals on both sides of the labor market. The central theme of this thesis is to examine the interplay of ‘off-workplace socio-economic interdependence’ and outcomes at the workplace. Understanding this interdependence has the potential to devise policies which can impact labor productivity, especially in developing countries. This thesis divided into …

Residential Metals Abatement Program Quality Assurance Project Plan (Non-Residential Parcels - Indoor Dust), Elsie King, Christopher Berg, Environmental Resource Management (Erm)

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Consumption Of Sugar-Sweetened Beverages And Its Potential Health Implications In Indonesia, Ratu Ayu D. Sartika, Atmarita Atmarita, M. I Zulkarnain Duki, Saptawati Bardosono, Lindawati Wibowo, Widjaja Lukito

Kesmas

The broad availability of sugar-sweetened beverages (SSBs) in the Indonesian market is increasing consumption. It, combined with escalating incidence and prevalence of diabetes and related non-communicable diseases (NCDs), and the ongoing debate on policies, has called for a comprehensive review as described in this study. Data was compiled from various sources but mainly gathered from the reported or published documents because of no direct access to the necessary data set. The lack of studies that assessed the direct relationship between SSB consumption and health outcomes in the Indonesian context also became a strong reason for the preparation of this review …

Increased Thyroid Hormone Levels In Pesticide Sprayer At Agricultural Area, Aditya Pawitra, Khuliyah Candraning Diyanah, Mohd Talib Latif, Beni Hari Susanto, Muhammad F D Lusno

Kesmas

Pesticides used massively in the agricultural sector would cause many poisoning and serious health problems. Organophosphate pesticides have been identified as endocrine-disrupting chemicals. This study aimed to compare thyroid hormone levels between the sprayers chronically exposed to pesticides and the control respondents who had never been exposed to pesticides. This study was an analytical observational with a cross-sectional design. The total number of respondents was 150, 50 as sprayers and 100 as control respondents. The venous blood samples were examined using the Enzyme-Linked Immunosorbent Assay (ELISA). The findings significantly showed that the sprayer had a higher level of thyroid-stimulating hormone …

The Development Of A Work Stress Model For Air Traffic Controllers In Indonesia, Lalu Muhammad Saleh, Syamsiar Siang Russeng, Istiana Tadjuddin, Iva Hardi Yanti, Nurul Mawaddah Syafitri, Mahfuddin Yusbud, Yulianah Rahmadani

Kesmas

The workload complexity experienced by and expected air traffic controllers (ATCs) causes psychological fatigue, engenders stressful conditions, and affects their quality of life. This study investigated the development of a model of psychological fatigue in ATCs in Indonesia, which affected their work stress levels and quality of life. This cross-sectional, three-month study focused on 185 ATCs randomly selected from six AirNavs based on strata. The results indicated a relationship between work duration (p-value = 0.033) and stress on ATCs; additionally, a relationship between work time and the opportunity to meet personal life needs (p-value = 0.007) were found. Feelings of …

Aminolevulinic Acid Dehydratase Allelic Frequency And Lead Toxicity In Children Under-Five In A Former Used Lead-Acid Battery Area, Yana Irawati, Haryoto Kusnoputranto, Umar Fahmi Achmadi, Ahmad Safrudin, Alfred Sitorus, Rifqi Risandi, Suradi Wangsamuda, Dendi Hadi Permana, Lepa Syahrani, Farahana Kresno Dewayanti, Puji B S Asih, Din Syafruddin

Kesmas

Polymorphisms in the Aminolevulinic Acid Dehydratase (ALAD) gene responsible for the ALAD1 and ALAD2 alleles have been implicated in susceptibility to lead toxicity. This study aimed to determine the allelic frequency of ALAD2 among children living in Bogor District, Indonesia, and its association with blood lead levels (BLLs) and lead toxicity. A cross-sectional study involving 128 children was conducted during September-October 2019 in the former ULAB area in Cinangka Village. The ALAD polymorphism, BLLs, and hematological parameters were evaluated. Blood samples were taken for dried blood spotting on filter paper, blood film, and BLL measurement. The PCR amplification and sequencing …

Public Perception And Obedience With Social Distancing Policies During The Covid-19 Pandemic In Jakarta, Indonesia, Widyamurti Widyamurti, Edwina Bernita Sitorus, Dewi Susanna, Bambang Wispriyono, Aria Kusuma, Renti Mahkota

Kesmas

The Indonesian Government established a social distancing policy to prevent COVID-19 transmission. However, this implementation will be ineffective without the compliance of the people. This study aimed to analyze the relationship between public perception and obedience with social distancing in terms of the variables based on the Health Belief Model. This study used a cross-sectional design with a population of Daerah Khusus Ibukota (DKI) Jakarta’s indigenes within the productive age of 15-64 years. The sample comprised 408 participants, with the independent variables of sociodemographics (age, gender, occupation, and education) and health beliefs (perceived susceptibility, severity, benefits, barriers, and self-efficacy). Meanwhile, …