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Interactions Of International Pilots' Stress, Fatigue, Symptoms Of Depression, Anxiety, Common Mental Disorders And Wellbeing, Marion Venus, Martin Grosse Holtforth

International Journal of Aviation, Aeronautics, and Aerospace

Objective

This study Investigates more dimensions than previous studies simultaneously: pilots’ duty rosters, stress, sleep difficulties, fatigue levels, wellbeing, symptoms of depression, anxiety, and common mental disorders (CMD), and how they are interrelated.

Background

Several scientific studies have confirmed that fatigue can pose a significant risk to flight safety. Other studies reported positive depression screening results for more pilots, compared with the general population.

Method

A cross-sectional online survey was completed by 406 international pilots, who reported their duty rosters of the last two months. Pilots also self-assessed their stress-levels, sleep problems, fatigue, wellbeing, and mental health.

Results

Although pilots …

Medium Altitude Long Endurance Rpa Training: Evaluating Blended Learning, Zachary Waller, Robert Stupnisky

International Journal of Aviation, Aeronautics, and Aerospace

The Heads Down Display (HDD) Menu Trainer – a stand-alone software trainer – was developed to familiarize students in Remotely Piloted Aircraft training with the layout and manipulation of the HDD menus for either the MQ-1 or MQ-9. Preliminary work by Waller et al. (2016) established the efficacy of the HDD Menu Trainer in improving student performance from pretest to posttest scores across several modalities (i.e. traditional, blended, and distance). Recognizing that students holding pilot certification scored higher in some aspects of the HDD Menu Trainer, this study sampled students across a curriculum to assess whether performance with the HDD …

Anthropometry Considerations In The Design And Evaluation Of Flight Deck Displays And Controls: Literature Review, Robert Joslin

International Journal of Aviation, Aeronautics, and Aerospace

The regulatory requirements and guidance for showing compliance with the Federal Aviation Administration anthropometric considerations in aircraft design are widely dispersed in an array of source documents. Consequently, they are difficult for aircraft manufacturers/applicants to identify, interpret, and address thereby extending the time to certify new/modified aircraft and aircraft systems. This literature review is intended to provide a compendium of the anthropometry considerations in the design certification of displays and controls in aircraft flight decks. This document is not a compliance document and the references herein are frequently updated, hence should be verified by the reader.

“Celastrol” For Osteoporosis, Ching Tung, Dawn Au, Siu Kan Law

Department of Food and Health Sciences

No abstract provided.

Cacao-Based Agroforestry In Conservation Forest Area: Farmer Participation, Main Commodities And Its Contribution To The Local Production And Economy, Murniati Murniati, Sri Suharti, Irma Yeny, Minarningsih Minarningsih

Forest and Society

Cacao-based agroforestry systems have been developed in the conservation forest area of Wan Abdul Rachman Grand Forest Park (WAR GFP). Previously, the forest areas were occupied by surrounding needy communities, causing land-use conflict and forest degradation. To resolve these problems, the conservation forest manager developed a conservation partnership program, giving farmers legal access to establish cacao agroforestry systems while improving forest conditions. This research aimed to study the farmers’ participation, main commodities of the cacao-based agroforestry system, and its contribution to the local production and economy. This research was conducted in 2018 and 2019. The field survey was used to …

Covid-19 And Forest Communities: Alignment And Challenges On Case Studies In Forest Community, Pemalang, Indonesia, Robert Siburian, Dicky Rachmawan, Fanny Henry Tondo

Forest and Society

A pandemic, last seen a century ago, has reappeared in 2019 under the name of Covid-19. Poor forest communities are also especially affected by this pandemic. The qualitative method through literature and case study is used to explain the connection between the emergence of COVID-19, forest destruction, and its impact on the lives of people in forests in Indonesia. Two cases are going to be models of forest communities in Pemalang, namely LMDH Rawa Sakti and KTH GGL. The program was established by the Ministry of Environment and Forest (MoEF) to create a supportive atmosphere for forest communities’ survival to …

Root Exudates Impact Plant Performance Under Abiotic Stress, Yen Ning Chai, Daniel P. Schachtman

Department of Agronomy and Horticulture: Faculty Publications

Plant root exudates serve pivotal roles in supporting plant development and interactions with the physicochemical and biological factors in the rhizosphere. Under stress conditions, root exudation is involved in enhancing plant resource-use efficiency and facilitating the crosstalk between plant and soil microbes to ameliorate stress. Although there are a large number of root exudates that remain to be characterized, recent technological advancements have allowed for the function of many exudate compounds to be elucidated. In this review, we discuss current knowledge about the key root exudates that modulate plant resource-use efficiency under various abiotic stresses including drought, aluminum toxicity, phosphorus, …

Protumorigenic Effects Of Mixed Lineage Kinase Domain-Like Protein In Cholangiocarcinoma Cells, Nattaya Duangthim

Chulalongkorn University Theses and Dissertations (Chula ETD)

Cholangiocarcinoma (CCA), a heterogeneous malignancy of bile duct system, has the highest incidence in Thailand. CCA is one of the leading causes of death which has low 5-year survival rate from 5% to 10% in advanced stages due to the difficulty of diagnosis in early stage and lack of effective therapies. Therefore, understanding the molecular mechanisms and pathogenesis of CCA development and progression is urgently needs and will lead to the development of novel therapeutic targets and strategies. Mixed lineage kinase domain-like (MLKL) was identified as a key effector in a novel regulated necrosis or necroptosis pathway. Recently studies have …

France-Thailand Collaboration On Climate Action (Sdgs Goal-13) For The Sustainable Development, Cattleya Delmaire

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research analyzes the collaboration between France and Thailand on climate action for sustainable development, specifically focusing on Sustainable Development Goal 13. The study reviews the related programs and activities between the two countries and their role in promoting long-term sustainability. The study highlights the urgency of reducing vulnerability to climate change and the shared responsibility of countries to address this global issue. The study employs a qualitative methodology that includes the analysis of existing literature, official documents, programs, activities, and reports, as well as in-depth interviews with a small number of respondents to explore their perspectives. The contribution of …

The Impact Of The Covid-19 Pandemic On Nestlé Enterprise And Its Response, Jiatuan Zhai

Chulalongkorn University Theses and Dissertations (Chula ETD)

The outbreak of the COVID-19 pandemic starting in late 2019 had far-reaching consequences for businesses worldwide, including the renowned food and beverage enterprise Nestlé. This study explores the impact of the pandemic on Nestlé's operations and supply chain, while also examining the company's response to the unprecedented challenges posed by the global health crisis. By adopting a proactive approach, Nestlé successfully navigated through the crisis, adapting its strategies, ensuring the safety of its employees, and addressing the changing consumer demands and market dynamics. This study aims to shed light on Nestlé's resilience and adaptive measures, offering insights into the strategies …

The Combinatory Effects Of Pediatric Obesity And Ontogeny On Monocarboxylate Transporter Expression In Tissues Of Drug Disposition, Michael Ng

University of the Pacific Theses and Dissertations

Proton-coupled and sodium-dependent monocarboxylate transporters are encoded by the SLC16A and SLC5A gene family of solute carriers, and are responsible for the transport of essential nutrients such as L-lactate, pyruvate, and ketone bodies. Basigin, or CD147, acts as an ancillary protein for MCT1 and MCT4, and is involved in membrane surface expression of transporters. MCT's are also involved in the shuttling of monocarboxylic xenobiotics across cell membranes, including the drugs valproate and gamma hydroxybutyrate. MCT’s are also important for normal mammalian development, particularly during embryogenesis and early neonatal life. Previous studies have shown that ketogenic diets increase MCT expression in …

Effect Of Feeding Cars On Digestibility And Fatty Acid Flow In Finishing Cattle Diets, John C. Gibbons, Mitchell M. Norman, Tyler J. Spore, Hannah C. Wilson, Kylie Butterfield, Andea K. Watson, Galen E. Erickson, Jonathan W. Wilson

Nebraska Beef Cattle Reports

An experiment was conducted to evaluate the impact of a liquid feed, Condensed Algal Residue Solubles (CARS) on diet digestibility and fatty acid flow to the small intestine. Three treatments included CARS at 0, 2.5, and 5% of the diet dry matter, replacing steam-flaked corn. The base diet included 73, 70.5, or 68% steam flaked corn, 15% dried distillers grains plus solubles, 8% alfalfa haylage, and 4% supplement. Inclusion of CARS in the diet did not affect dry matter or organic matter intake or digestibility of dry matter, organic matter or neutral detergent fiber. Amount of fatty acid flowing to …

Evaluation Of Green Grass On Nutrient Digestibility And Fatty Acid Flow In Cattle Finishing Diets, Aksel R. Wiseman, Tyler J. Spore, Mitchell M. Norman, Hannah C. Wilson, J. C. Macdonald, Andrea K. Watson, Galen E. Erickson

Nebraska Beef Cattle Reports

Six ruminally and duodenally cannulated steers were utilized in a 3 × 3 replicated Latin square experiment to test 0, 15, and 30% dietary inclusion of Green Grass (Sunseo Omega 3; Chungcheong Duk-Do, South Korea), a feed comprised of sesame meal, giant kelp, cassava, and sorghum (not currently approved to be fed in the US). Dry matter and fiber intake increased linearly with increased Green Grass inclusion. Dry matter and organic matter digestibility were not affected by Green Grass inclusion. Concentration of saturated fatty acids at the duodenum were similar for Green Grass 0 and Green Grass 15 with a …

Bioactivities Of Extracts And Pure Compound From Monofloral Bee Pollen Of Western Honeybee Apis Mellifera, Phanthiwa Khongkarat

Chulalongkorn University Theses and Dissertations (Chula ETD)

Bee pollen is one of interesting bee products which contain many bioactive compounds. However, its constituents depend on habitats and species of food plants. That results in a variety of bioactivities. In Thailand, there are many types of bee pollen, but there are few reports on their biological activities. In this study, bee pollen of A. mellifera was focused. Six types of monofloral bee pollen were harvested and identified as floral pollen of tea (Camellia sinensis L.), sunflower (Helianthus annuus L.), giant sensitive plant (Mimosa diplotricha), lotus (Nelumbo nucifera), leuuang tipwan (Xyris complanata), and sap raeng sap ka (Ageratum conyzoides) …

Food Inflation During The Covid-19 Pandemic. A Comparison Between Brazilian And Thai Food Inflation During The Years 2020 And 2021., Lilian Cordeiro Prates

Chulalongkorn University Theses and Dissertations (Chula ETD)

Thailand and Brazil are two prominent net agro-exporters, and both countries were hit severely by the Pandemic of Covid-19. While Thailand's GDP decreased by 6.1% in 2020, the Brazilian economy shrank by 4.1%. Despite these similarities, during the acute phase of the pandemic, food prices in Brazil started to increase at an accelerated pace while, in Thailand, food prices remained low and stable. In 2020, the annual food inflation in Brazil was 14,11%, and Thailand's was 1.37%. Therefore, this study aims to contribute to the literature by filling the information gap about food inflation dynamics in those two countries during …

Hydrolysis Of Grass Xylan By Xylanases From Aureobasidium Pullulans For Xylooligosaccharide And Xylitol Productions, Sorawit Na Nongkhai

Chulalongkorn University Theses and Dissertations (Chula ETD)

Ten grass samples were screened for potential as a xylan source and five including sugarcane leaf, purple guinea grass, Napier grass, sabi grass and vetiver grass were selected for optimization of xylan extraction. After optimization, sugarcane leaf gave the highest xylan recovery at 99.42% when it was extracted by 14.32% (w/v) NaOH at 13.25:1 liquid: solid ratio with 32.36-min steaming time. From the xylan structural and sugar composition analyses, the major xylan from sugarcane leaf was arabinoxylan whereas those from the other grass samples were (glucurono)arabinoxylan. Xylans from sugarcane leaf, purple guinea grass and Napier grass were selected for further …

Foam-Mat-Freeze Dried Clove Essential Oil Nanoemulsion For Inhibition Of Spoilage Microorganisms In Whiteleg Shrimp Litopenaeus Vannamei, Puncharat Pilong

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research developed foam-mat freeze-dried clove essential oil nanoemulsion (FFD-CN) for inhibiting food spoilage microorganisms. This research comprised three parts. Firstly, the fabrication of clove essential oil nanoemulsion (CN) was optimized. The characteristics including particle size, polydispersity index (PDI), Zeta-potential, and viscosity of the fabricated nanoemulsions were observed. The optimal CN having a droplet size of 30.76 nm, PDI of 0.179, Zeta-potential of -50.01 mV, and viscosity of 7.81 cP was achieved at 1% v/v clove oil and 3% v/v Tween® 80 concentration and 10,000 psi operating pressure. The CN exhibited stability against particle aggregation and phase separation throughout storage. …

Enzymatic Pretreatment Of Rice Bran Acid Oil Before Γ-Oryzanol Recovery, Asdarina Binti Yahya

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study aims to apply enzymatic reactions for pretreating the major byproduct of rice bran oil (RBO) industry, rice bran acid oil (RBAO) before γ-oryzanol recovery. RBAO contains free fatty acids (FFAs), glycerides, and is rich in the super-antioxidant, γ-oryzanol. As a primary step to recover γ-oryzanol from RBAO, glycerides must be removed because of having similar polarity with γ-oryzanol. This study is conducted in two parts, hydrolysis and esterification/transesterification. In the first part, enzymatic hydrolysis. The study evaluates the performance of operating conditions using one factor at a time (OFAT) on the reaction time, temperature, lipase loading, water:RBAO ratio, …

Simultaneous Extraction And Colorimetric Detection Of Ions Using Gel Electromembrane, Ali Sahragard

Chulalongkorn University Theses and Dissertations (Chula ETD)

A total integrated electrocolorimetric sensing approach consisting of gel-based electromembrane extraction and colorimetric detection in one-step process was developed. This system was designed using colorimetric reagents preadded to the agarose gel for the determination of the following two model analytes: iodide for negative ions and nickel for positive ions. In this system, when a voltage was applied, the analytes were extracted and transferred from the sample solution (donor phase) to the gel (acceptor phase). The analytes then simultaneously reacted with the colorimetric reagents inside the gel, yielding blue and pink colors for iodide and nickel ions, respectively. These colors were …

Titania Nanosheets Induce Anticancer Activityin Human Non-Small Cell Lung Cancer Cells, Rapeepun Soonnarong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Metal nanomaterials can enhance the efficacy of current cancer therapies. Here, we show that Ti0.8O2 nanosheets cause cytotoxicity in several lung cancer cells but not in normal cells. The nanosheet-treated cells showed certain apoptosis characteristics. Protein analysis further indicated the activation of the p53-dependent death mechanism. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) analyses revealed the cellular uptake of the nanosheets and the induction of cell morphological change. Ti0.8O2 nanosheets induce apoptosis through a molecular mechanism involving peroxynitrite (ONOO−) generation. As peroxynitrite is known to be a potent inducer of S-nitrosylation, we further found that the nanosheets mediated …

The Effect Of Breathing Training Program Using A Toy Blower On Lung Function, Respiratory Muscles Strength, And Functional Capacity In People With Obesity Level 2, Sarawut Jansang

Chulalongkorn University Theses and Dissertations (Chula ETD)

Obesity level 2 has major implications on the respiratory system, particularly the impact of breathing exercises on lung function, which may now be trained employing a variety of breathing exercises and equipment. Therefore, researcher was interested in applying inflatable toys to be applied along with breathing patterns in people with obesity level 2 between the ages of 30 and 65, which affected lung function, respiratory muscle strength and physical activity in way of life. Therefore, the researcher aimed to study the effects of a breathing training program using a toy blower device on breathing performance and respiratory muscle strength. The …

Human Health Risk Assessment Of Heavy Metals In Roadside Dust Near Hydropower Dams Construction Areas In Wangduephodrang District Of Bhutan, Kinley Dorjee

Chulalongkorn University Theses and Dissertations (Chula ETD)

The concern over the heavy metal laden dust and its impact on human health has gained global importance over the decade. Exposure to roadside dust is associated with various acute and chronic health issues. Bhutan too is battling environmental health issues due to increasing anthropogenic and developmental activities such as hydropower dam construction. This study analyses the heavy metals concentrations in roadside dust near hydropower dam construction areas and assesses the noncancer and cancer risk of exposure to heavy metals laden dust through inhalation. This study was a cross sectional study. The roadside dust samples near hydropower dam construction in …

Examining Harm Reduction In Housing First For Youth Experiencing Homelessness And Concurrent Mental Health And Substance Use Issues, Victoria Rozycki

Theses and Dissertations (Comprehensive)

Purpose: Housing First for Youth (HF4Y) is a youth-focused adaptation of the well-established Housing First (HF) program model to housing and service provision for individuals experiencing homelessness. Given that the experience of youth homelessness is associated with an increased likelihood of substance use issues, a central tenet of the HF4Y framework is the use of a harm reduction approach to substance use and addictions. However, research on HF4Y programming has yet to examine how harm reduction is specifically being implemented in these settings. The purpose of this thesis was to examine how the principles and philosophies of harm reduction are …

Crib: A Novel Method For Device-Based Physical Behavior Analysis, Paul R. Hibbing, Seth A. Creasy, Jordan A. Carlson

Manuscripts, Articles, Book Chapters and Other Papers

Physical behaviors (e.g., sleep, sedentary behavior, and physical activity) often occur in sustained bouts that are punctuated with brief interruptions. To detect and classify these interrupted bouts, researchers commonly use wearable devices and specialized algorithms. Most algorithms examine the data in chronological order, initiating and terminating bouts whenever specific criteria are met. Consequently, the bouts may encapsulate or overlap with later periods that also meet the activation and termination criteria (i.e., alternative bout solutions). In some cases, it is desirable to compare these alternative bout solutions before making a final classification. Thus, comparison-focused algorithms are needed, which can be used …

Studying Vulnerable Populations Through An Epigenetics Lens: Proceed With Caution, Katie Saulnier, Alison Berner, Stamatina Liosi, Brian Earp, Courtney D. Berrios, Stephanie O.M. Dyke, Charles Dupras, Yann Joly

Manuscripts, Articles, Book Chapters and Other Papers

Epigenetics – the study of mechanisms that influence and modify gene expression – is providing unique insights into how an individual’s social and physical environment impact the body at a molecular level, particularly in populations that experience stigmatization and trauma. Researchers are employing epigenetic studies to illuminate how epigenetic modifications lead to imbalances in health outcomes for vulnerable populations. However, the investigation of factors that render a population epigenetically vulnerable present particular ethical and methodological challenges. Here we are concerned with demonstrating how, in targeting certain populations for epigenetic research, this research may be pathologizing socio-cultural and medical practices in …

Sigirr Mutation In Human Necrotizing Enterocolitis (Nec) Disrupts Stat3-Dependent Microrna Expression In Neonatal Gut., Wei Yu, Inamul Haque, Aparna Venkatraman, Heather Menden, Sherry M. Mabry, Badal C. Roy, Sheng Xia, Jeremy W. Prokop, Shahid Umar, Aron M. Geurts, Venkatesh Sampath

Manuscripts, Articles, Book Chapters and Other Papers

Background & aims: Single immunoglobulin interleukin-1-related receptor (SIGIRR) is a major inhibitor of Toll-like receptor signaling. Our laboratory identified a novel SIGIRR stop mutation (p.Y168X) in an infant who died of severe necrotizing enterocolitis (NEC). Herein, we investigated the mechanisms by which SIGIRR mutations induce Toll-like receptor hyper-responsiveness in the neonatal gut, disrupting postnatal intestinal adaptation.

Methods: Clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 was used to generate transgenic mice encoding the SIGIRR p.Y168X mutation. Ileal lysates, mouse intestinal epithelial cell (IEC) lysates, and intestinal sections were used to assess inflammation, signal transducer and activator of transcription 3 (STAT3) phosphorylation, …

Feeling Fat: Theorizing Intergenerational Body Narratives Through Affect, Katie Cook

Theses and Dissertations (Comprehensive)

This study set out to understand the intergenerational movement and impact of obesity epidemic and anti-fat narratives that emerged after the 1950s in North America. Embedded in an Anglo-Western, neoliberal context, the current study sought to understand the impact of weight-based messaging on the embodied experiences of parents and their now-adult children. Working within a critical-transformative paradigm and drawing on post-humanism and new materialism, I conducted 19 narrative interviews with individuals born between 1955 and 1990, six of whom were mother-daughter dyads, as well as a body mapping workshop with five self-selecting participants over the course of three sessions. I …

Bee Cities And More-Than-Human Communities: Protecting Pollinators In The Anthropocene, Jennifer Marshman

Theses and Dissertations (Comprehensive)

Grounded in political ecology and the ecological humanities, the aim of this research is to examine the Bee City movement as a conservation engagement strategy at the municipal level. While pollinator research occurs from a variety of perspectives – biology, entomology, phylogeny, ecology, and agricultural sciences - social engagement strategies and the human dimensions of pollinator conservation have yet to be widely investigated. This research questions if these strategies put in place, and contribute to, important political and socio-ecological mechanisms in the local context. Through a collective case study methodology, this research points to the Bee City movement as a …

Fostering Successful Communities Of Collaboration Through Educational Partnerships: Strengthening Bilingual Learners' Language And Literacy Achievement Along The Texas-Mexican Border, Isela Almaguer

Bilingual and Literacy Studies Faculty Publications

There is an undisputable need to form collaborative partnerships between schools, families, homes, and communities across the nation. Collaborative educational partnerships are the cornerstone for student success. With increasingly diverse student populations, schools must communicate and collaborate with families and communities to bridge the wide gap that exists between home and school. With a dominant Spanish-speaking population of Mexican descent, as that of children living in the Southern tip of the Texas-Mexican border, known as The Rio Grande Valley, barriers such as low social economic status and limited English proficiency may impede much-needed communication between schools, homes, and communities. These …

Analysis Of Economic And Pandemic Forces On U.S. Stock Market Index, S. Keith Lowe, Julie Staples, Cassabdra Ward

Journal of Business, Industry, and Economics

Over the past century, research has been prevalent in the economic and financial literature on developing models to assist in the prediction of stock market price and stock market indices. Stock market price prediction is a complicated process, which has produced and conceptualized several theories regarding stock markets over the years. Most of these theories either try to explain the nature of stock markets or try to explain whether the markets can be manipulated through inefficiencies which often lead to financial gain for investors. Most of these past prediction models have utilized some form of quantitative-based regression analysis, including logit, …