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2020

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Atlas In Transit, Becky Thompson Mfa Jan 2020

Atlas In Transit, Becky Thompson Mfa

All Student Scholarship

Atlas in Transit is a collection of poems circling around the precarity and resilience of people in transit from Syria, Afghanistan, Palestine, Somalia and other countries to Greece beginning in 2015 in what became the biggest forced migration in the world since WWII. The collection offers witness poems about people fleeing their homelands within a larger historical context, with nods to Sappho, Minoan pots, Byzantine and Ottoman history, the Genocide of 1922, and silhouettes crossing the burning sun. Many poems rely upon formal forms—villanelle, terza rima, ghazal, haiku— as well as broken-step couplets, found conversations, and redacted documents. The poems …

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Possibility Is A Kink: A Conversation With Sarah Sgro, Sarah Sgro, Helene Achanzar Jan 2020

Possibility Is A Kink: A Conversation With Sarah Sgro, Sarah Sgro, Helene Achanzar

Yalobusha Review

No abstract provided.

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Two Poems, Ansley Clark Jan 2020

Two Poems, Ansley Clark

Yalobusha Review

No abstract provided.

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The Problem With Relying On Profit-Driven Models To Produce Pandemic Drugs, Ana Santos Rutschman Jan 2020

The Problem With Relying On Profit-Driven Models To Produce Pandemic Drugs, Ana Santos Rutschman

All Faculty Scholarship

The longstanding problems of relying on a market response to a pandemic are becoming readily apparent in the United States, which has quickly become the epicenter of the COVID-19 outbreak. The problems are particularly pronounced in pharmaceutical markets, where we are pinning our hopes for both cures and vaccines. In previous work we have shown how characteristics of healthcare markets in the United States create a divergence between the private incentives of for-profit companies and public health needs, leading to sub-optimal health outcomes in what is a uniquely market-driven healthcare system. In this Essay, written as the COVID-19 pandemic unfolds, …

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Anthropology And Conservation, Nicolas Lainé Jan 2020

Anthropology And Conservation, Nicolas Lainé

Animal Sentience

Baker & Winkler make a welcome contribution to elephant conservation in Thailand in advocating a role for joint human/elephant labor and local expertise in rewilding. Their argument would benefit, however, if it drew more upon the local ethnographic evidence. Ethnocentric notions such as “welfare” and “wellbeing” may not fit into the local perception of pachyderms.

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The Undergraduate 2020, Saint Mary's College Of California Jan 2020

The Undergraduate 2020, Saint Mary's College Of California

The Undergraduate Spectrum

No abstract provided.

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Leisure As Immediate Conscious Experience: Foundations, Evaluation, And Extension Of The Theory Of Structured Experiences, Gary D. Ellis, Jingxian Jiang, Patti A. Freeman, Andrew Lacanienta, Tazim Jamal Jan 2020

Leisure As Immediate Conscious Experience: Foundations, Evaluation, And Extension Of The Theory Of Structured Experiences, Gary D. Ellis, Jingxian Jiang, Patti A. Freeman, Andrew Lacanienta, Tazim Jamal

Faculty Publications

The nature, causes, and effects of immediate conscious leisure experiences have long been central interests of scholars. Significant contributions to the field include Abraham Maslow’s studies of ecstasy and peak experience, Sigmund Koch’s descriptions of two forms of consciousness, John Neulinger’s classification of immediate conscious experiences based on their motivational contexts, Michael J. Ellis’ application of arousal theory to play, Howard and Diane Tinsley’s theory of the leisure experience, Mihaly Csikszentmihalyi’s career of inquiry into the “flow” phenomenon, and recently, the theory of structured experience (TSE). This paper reviews research on leisure as immediate conscious experience relating to development of …

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Which Moses? Jewish Background Of Jesus' Transfiguration, Andrei Orlov Jan 2020

Which Moses? Jewish Background Of Jesus' Transfiguration, Andrei Orlov

Theology Faculty Research and Publications

An importance of Mosaic traditions for understanding of Jesus’ transiguration has been long noticed by many distinguished students of the New Testament.  While the role of Mosaic motifs found in the Hebrew Bible has been duly acknowledged, often in these studies one can see a glaring neglect for extra-biblical Mosaic developments that might also constituted a conceptual background of Jesus’ metamorphosis on the mountain. The puropse of this paper is to explore early para-biblical traditions in which the son of Amraam was understood not merely as a prophet, but as a divine figure.

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Leviathan's Knot: The High Priest's Sash As The Cosmological Symbol, Andrei Orlov Jan 2020

Leviathan's Knot: The High Priest's Sash As The Cosmological Symbol, Andrei Orlov

Theology Faculty Research and Publications

No abstract provided.

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A Choice Of Color: Does Lingerie Color Affect Perceived Attractiveness And Evolutionary Fitness?, Samantha Luzietti, T. Joel Wade Jan 2020

A Choice Of Color: Does Lingerie Color Affect Perceived Attractiveness And Evolutionary Fitness?, Samantha Luzietti, T. Joel Wade

Faculty Journal Articles

Prior research examining the effect of color on perceived attractiveness is equivocal. Also, no research has examined how the color of lingerie affects perceptions. This research explored the effect of the color of lingerie that a woman was wearing on individuals’ perceptions of her attractiveness and evolutionary fitness. Three colors of lingerie were used in this study: Black lingerie, Red lingerie, and White lingerie. These images were presented to 72 men and 82 women. Participants rated the woman’s perceived physical attractiveness, sexual attractiveness, trustworthiness, nurturance, masculinity, femininity, dominance, healthiness, enthusiasm, social competence, affectionateness, intelligence, short term mate potential, long term …

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Do Arthropods Respond To Noxious Stimuli Purely By Reflex?, Robert W. Elwood Jan 2020

Do Arthropods Respond To Noxious Stimuli Purely By Reflex?, Robert W. Elwood

Animal Sentience

Mikhalevich & Powell (2020) argue that it is wrong to dismiss the idea of sentience in invertebrates. Here, I expand on the evidence for crustaceans responding to noxious stimuli in ways that are not explained by mere reflexes, and that are consistent with pain. I consider the idea that male praying mantids must not feel pain because they may continue to mate whilst being consumed by the female. I finish with thoughts about the idea that because robots may be constructed to act as if they experience pain, the argument that animals might experience pain is diminished.

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Catalytic Conversion Of Chitin To Lactic Acid In Hot-Compressed Water, Kodchakon Kun-Asa Jan 2020

Catalytic Conversion Of Chitin To Lactic Acid In Hot-Compressed Water, Kodchakon Kun-Asa

Chulalongkorn University Theses and Dissertations (Chula ETD)

Chitin is the second most available polysaccharide after cellulose. Chitin and N-acetyl-D-glucosamine polysaccharide, can be converted to valuable products by using homogeneous catalysis, most of the chitin generated by food processing is treated as industrial waste. For chitin conversion to useful chemicals has been investigated less than cellulose conversion. Therefore, in this research, chitin conversion was investigated. The result was divided into four part. The first part, the result showed that ball milled pretreatment could increase the conversion of chitin, which indicated that the crystallinity of the chitin had been reduced by the ball milled pretreatment. In the second part, …

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Microplastics In Industrial Wastewater Treatment Plant: Quantification, Identification And Ecological Risk Assessment, Sujarat Saiwaree Jan 2020

Microplastics In Industrial Wastewater Treatment Plant: Quantification, Identification And Ecological Risk Assessment, Sujarat Saiwaree

Chulalongkorn University Theses and Dissertations (Chula ETD)

Wastewater treatment plants (WWTPs) are one of the significant pathways of microplastics (MPs) entering the environment. Thus, information regarding this issue is still requisite in Thailand. In this study, wastewater and sludge samples were collected from various treatment units of industrial WWTP in dry season (February 2020) and wet season (July 2020). The MP particles were identified by size, shape, and polymer types. From the wastewater, MPs were detected in the highest amounts after the aeration unit (134.35 ± 20.79 particles/L) in dry season sample. In addition, sludge contained relatively low MPs. The size fraction in wastewater varied, but in …

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Clinical Diagnosis, Ultrastructural Study And Antigenic Characterization Of Platynosomum Fastosum In Cats, Babi Kyi Soe Jan 2020

Clinical Diagnosis, Ultrastructural Study And Antigenic Characterization Of Platynosomum Fastosum In Cats, Babi Kyi Soe

Chulalongkorn University Theses and Dissertations (Chula ETD)

Platynosomum fastosum is a cat liver fluke causing hepatobiliary diseases in cats. To evaluate the criterior to support the suspicion index for early disease detection during subclinical infection, the biochemical parameters composed of liver, pancreatic enzymes, tumor markers were evaluated in 14 P. fastosum naturally-infected cats. As a result, alanine transaminase (ALT) and gamma glutamyl transferase (GGT) were found elevated in 57.8% (8/14) of infected cats. For the diagnostic imaging, bile sediments were present in 85.7% (12/14) of infected cats in their gallbladders. Since the number of bile-derived P. fastosum eggs were significantly higher than that from fecal samples (p=0.001), …

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Fabrication Of Three-Dimensional (3-D) Corneal Transplantable Model From Silk Fibroin/Gelatin-Based Biomaterial, Chutirat Torsahakul Jan 2020

Fabrication Of Three-Dimensional (3-D) Corneal Transplantable Model From Silk Fibroin/Gelatin-Based Biomaterial, Chutirat Torsahakul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Canine corneal blindness is a common cause of vision loss and visual impairment worldwide. While the demand of canine corneal graft is continuously elevated, the clinical useable grafts are limited to acellular biomaterials and allograft. This study aimed to generate the tissue-engineered canine cornea in the part of corneal epithelium and underlying stroma based on cLESCs (canine limbal epithelial stem cells) seeded silk fibroin and gelatin (SF/G) film and cCSSCs (canine corneal stromal stem cells) seeded SF/G scaffold respectively. Both cell types were successfully isolated by collagenase I. SF/G films and scaffolds served as the prospective substrates for cLESCs and …

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Comparison Of Canine Urinary Bacterial Population In Calcium Oxalate Urolithiasis And Healthy Conditions, Nichamon Rakprakobkij Jan 2020

Comparison Of Canine Urinary Bacterial Population In Calcium Oxalate Urolithiasis And Healthy Conditions, Nichamon Rakprakobkij

Chulalongkorn University Theses and Dissertations (Chula ETD)

Urolithiasis is one of the most common lower urinary tract diseases in dogs. Struvite is the most canine uroliths reported, and the second reported is calcium oxalate (CaOx). However, the proportion of CaOx urolithiasis tends to be increased. CaOx urolithiasis has high incidence of recurrence after the treatment and the pathogenesis of the stone formation is uncleared. Recent studies revealed that oxalate degrader bacteria in the gastrointestinal tract has important roles in CaOx stone formation but no research has been done to study the composition and the role of microbiome in the urinary tract of dogs with CaOx urolithiasis. This …

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Development Of Nanostructured Lipid Carrier Clove Oil As Anesthetic Agent In White Shrimp (Litopenaeus Vannamei), Somrudee Kaewmalun Jan 2020

Development Of Nanostructured Lipid Carrier Clove Oil As Anesthetic Agent In White Shrimp (Litopenaeus Vannamei), Somrudee Kaewmalun

Chulalongkorn University Theses and Dissertations (Chula ETD)

Clove oil is an essential oil extracted from the dried buds and leaves of the clove plant (Syzygium aromaticum). Clove oil contains eugenol as the main active ingredient. Clove oil used as an anesthesia functions as calming effect, loss of equilibrium, non-reactivity and consciousness in lead to reduce activity, physiological stress, mortality rate, and preventing cannibalism method during handling and transportation. However, the component of clove oil is insoluble in water and must be dissolved in ethanol. So, clove oil ethanolic solution leading to toxic and irritation in animal and user. In this study, to avoid this side effect, the …

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Antimicrobial Resistance In Salmonella Enterica Isolated From Dogs And Cats In Northern And Northeastern Thailand, Thanich Chantharothaiphaichit Jan 2020

Antimicrobial Resistance In Salmonella Enterica Isolated From Dogs And Cats In Northern And Northeastern Thailand, Thanich Chantharothaiphaichit

Chulalongkorn University Theses and Dissertations (Chula ETD)

Antimicrobial resistance (AMR) is One Health issue involved in humans, animals and environment and a unified One Health approach is required to contain this problematic issue. However, data on AMR in companion animals is limited. Dogs and cats are popular pet animals and are known to carry many bacterial pathogens that are of public health importance, including Salmonella. This study aimed to identify serovars of Salmonella and phenotypically and genetically characterize AMR in Salmonella isolated from dogs and cats in Northern and Northeastern Thailand. A total of 178 S. enterica isolates from dogs (n= 159) and cats (n= 19) collected …

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The Influence Of Polycyclic Aromatic Hydrocarbons In Fcgriib -/- Lupus Mice, Kanyarat Udompornpitak Jan 2020

The Influence Of Polycyclic Aromatic Hydrocarbons In Fcgriib -/- Lupus Mice, Kanyarat Udompornpitak

Chulalongkorn University Theses and Dissertations (Chula ETD)

The activation of aryl hydrocarbon receptor (Ahr) through polycyclic aromatic hydrocarbons (PAHs), the major components of particulate matter at 2.5 micron (PM2.5) in the polluted air, might aggravate inflammation and lupus activity. Hence, 1,4-chrysenequinone (1,4-CQ), a substance in the PAHs group, was tested in a lupus model from FcgRIIb deficiency (FcgRIIb-/-) using macrophages and mice. Although the activation by 1,4-CQ alone was unable to induce inflammation, the pre-conditioning by lipopolysaccharide (LPS), a representative inflammatory-activator, before 1,4-CQ (LPS/1,4-CQ) induced more predominant inflammation in macrophages when compared with LPS or 1,4-CQ activation alone as determined by supernatant cytokines (TNF-α, IL-6 and IL-10). …

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Willingness To Pay For Flood Insurance: A Case Study Of Phang Khon, Sakon Nakhon Province, Soonthorn Paopid Jan 2020

Willingness To Pay For Flood Insurance: A Case Study Of Phang Khon, Sakon Nakhon Province, Soonthorn Paopid

Chulalongkorn University Theses and Dissertations (Chula ETD)

Prolonged droughts and floods can reduce agricultural productivity and negatively impact businesses in the agriculture and food industries. The prevention and response to floods require both public and private efforts (e.g., "Pay for Flood" insurance) for utmost effectiveness. This study aims to determine the potential factors that influence willingness to pay for flood insurance for the people of Phang Khon District, near the Nam oon Dam, Sakhon Nakorn Province, Thailand, in paying flood insurance. The regression results showed that the height and duration of flooding, house price, and flood damage were crucial factors that triggered the willingness to pay flood …

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Synthesis, Characteristic And Application Of Mesocellular Foam Carbon (Mcf-C) As Catalyst For Dehydrogenation Of Ethanol, Yoottapong Klinthongchai Jan 2020

Synthesis, Characteristic And Application Of Mesocellular Foam Carbon (Mcf-C) As Catalyst For Dehydrogenation Of Ethanol, Yoottapong Klinthongchai

Chulalongkorn University Theses and Dissertations (Chula ETD)

This research aims to investigate the synthesis of MCF-C as catalyst for dehydrogenation of ethanol. The study was classified into 3 parts. In the first part, the mesocellular foam silica (MCF-Si) was converted to mesocellular foam carbon using a surfactant residue as a carbon source, and followed by testing the dehydrogenation of ethanol to acetaldehyde. Surfactant residue in the inside of MCF-Si could be used as the carbon source for MCF-C synthesis. The obtained material could maintain the meso-structure, and exhibited higher activity for ethanol dehydrogenation in comparison to MCF-Si. For the second part, MCF-C was examined for 12 h …

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Antioxidant And Antimicrobial Activities Of Crude Extracts Of Actinomycetes From Soils, Khaing Zar Wai Jan 2020

Antioxidant And Antimicrobial Activities Of Crude Extracts Of Actinomycetes From Soils, Khaing Zar Wai

Chulalongkorn University Theses and Dissertations (Chula ETD)

A total of 17 actinomycetes isolated from soil collected from Nong Khai, Nakhon Ratchasima, Khon Kaen, Phichit, Chachoengsao and Udonthani Province, were evaluated on antimicrobial and antioxidant activities. They were identified as Streptomyces (16 strains) and Micromonospora (1 strain) based on their phenotypic and chemotaxonomic characteristics including 16S rRNA gene sequences analysis. Strain JA03 showed 98.95% similarity of 16S rRNA gene sequence to S. puniciscabiei DSM 41929T. Strain JA03 was found to be the novel species of genus Streptomyces based on whole genome average nucleotide identity (ANI). All these strains were evaluated on antimicrobial and antioxidant activities. Based on agar …

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การพัฒนาสวนสัตว์ตามมาตรฐานสมาคมสวนสัตว์และสถานแสดงพันธุ์สัตว์น้ำโลก : บทเรียนเพื่อสวนสัตว์แห่งชาติของประเทศไทย, ภัทรศิต ทั่งทอง Jan 2020

การพัฒนาสวนสัตว์ตามมาตรฐานสมาคมสวนสัตว์และสถานแสดงพันธุ์สัตว์น้ำโลก : บทเรียนเพื่อสวนสัตว์แห่งชาติของประเทศไทย, ภัทรศิต ทั่งทอง

Chulalongkorn University Theses and Dissertations (Chula ETD)

ประเทศไทยกำลังมีการพัฒนาโครงการสวนสัตว์แห่งใหม่เพื่อเป็นสวนสัตว์แห่งชาติ โดยปัจจุบันกำลังอยู่ในขั้นตอนการกำหนดแผนยุทธศาสตร์และวางผังแม่บทโครงการ จึงจำเป็นต้องมีการศึกษาถอดบทเรียนสวนสัตว์ที่ได้รับมาตรฐานสมาคมสวนสัตว์และสถานแสดงพันธุ์สัตว์น้ำโลก โดยมีจุดประสงค์เพื่อถอดบทเรียนในการพัฒนาโครงการ การวางผังแม่บท รายได้ ค่าใช้จ่าย และผลตอบแทนที่ได้จากการบริหารงาน โดยใช้วิธีการรวบรวมข้อมูลทุติยภูมิจากการสื่ออิเล็กทรอนิกส์ชนิดออนไลน์เป็นหลัก เพื่อนำมาวิเคราะห์เปรียบเทียบและสัมภาษณ์ผู้เชี่ยวชาญจากกรณีศึกษาจำนวน 4 แห่ง ได้แก่ สวนสัตว์Dallas สวนสัตว์Woodland Park สวนสัตว์Saint Louis และสวนสัตว์Denver ผลการศึกษาพบว่าสวนสัตว์มีลักษณะที่ตั้งคือเป็นโครงการเดี่ยวหรืออยู่ร่วมกับแหล่งการเรียนรู้และนันทนาการมีวิสัยทัศน์ที่ต้องการเป็นแหล่งอนุรักษ์สัตว์ป่าเพื่อการเรียนรู้ดำเนินการโดยองค์กรที่ไม่แสวงหาผลกำไรทางการเงินและมีแนวคิดการหาแหล่งที่มาของรายได้เพิ่มเพื่อแก้ไขความไม่แน่นอนของรายได้จากการสนับสนุนจากรัฐและเอกชน สวนสัตว์ทั้ง 4 โครงการมีการวางผัง 2 รูปแบบได้แก่ Main loop and themed loop และ Classic Island structure สวนสัตว์ 3 จาก 4 โครงการมีสัดส่วนการใช้ที่ดินมากที่สุดคือส่วนจัดแสดงและนิทรรศการนอกอาคาร เฉลี่ยร้อยละ 28 ของพื้นที่ทั้งหมด สวนสัตว์Saint Louis มีจำนวนสัตว์มากที่สุดจำนวน 13,500 ตัว 555 สปีชีส์ และสวนสัตว์Woodland parkมีจำนวนสัตว์น้อยที่สุดจำนวน 1,098 ตัว 300 สปีชีส์ สวนสัตว์Saint Louis มีผู้เข้าชมเฉลี่ยในปี ค.ศ. 2013 ถึง ค.ศ. 2017 มากที่สุดจำนวน 3,162,667 คน และน้อยที่สุดคือสวนสัตว์Dallasจำนวน 1,032,959 คน ทั้ง 4 สวนสัตว์มีที่มาของรายได้ที่มากที่สุดคือเงินสมทบจากรัฐบาลเฉลี่ย 12,454,533 ดอลลาร์สหรัฐ และมีที่มาของค่าใช้จ่ายด้านพนักงานมากที่สุดเฉลี่ย 17,154,756 ดอลลาร์สหรัฐ สวนสัตว์Saint Louis มีผลกระทบทางเศรษฐศาสตร์ต่อรายได้รวมจากการบริหารที่สูงที่สุด 10.54 เท่า สามารถถอดบทเรียนได้ว่า 1. ระยะห่างจากใจกลางเมืองไม่มีผลต่อจำนวนผู้เข้าชมแต่การสัญจรที่หลากหลายมีความสำคัญ จำนวนสัตว์และจำนวนสปีชีส์ที่มากกว่าสามารถดึงดูดผู้เข้าชมได้มากกว่า 2. สวนสัตว์ที่อยู่ร่วมกับแหล่งเรียนรู้และนันทนาการสามารถดึงดูดผู้เข้าชมได้มากกว่า 3. สวนสัตว์จำเป็นมีการปรับกลยุทธ์ในการหารายได้เพื่อการพึ่งพาตนเอง 4. ค่าใช้จ่ายส่วนของพนักงานเป็นค่าใช้จ่ายส่วนใหญ่ของสวนสัตว์ 5. ผลกระทบทางเศรษฐศาสตร์สอดคล้องกับจุดมุ่งหมายโครงการที่ไม่แสวงหาผลกำไรทางการเงิน จึงนำมาสู่ข้อเสนอแนะต่อสวนสัตว์แห่งชาติ คือ 1. สวนสัตว์แห่งใหม่ควรมีการเข้าถึงด้วยรถไฟฟ้าขนส่งมวลชน ควรมีการจัดแสดงสัตว์จำนวนมากและมีสปีชีส์ที่หลากหลาย 2. …

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Enhanced Methane Hydrate Formation Using Promoters For Natural Gas Storage And Transportation Application, Katipot Inkong Jan 2020

Enhanced Methane Hydrate Formation Using Promoters For Natural Gas Storage And Transportation Application, Katipot Inkong

Chulalongkorn University Theses and Dissertations (Chula ETD)

Solidified natural gas (SNG) is an alternative technology for natural gas storage and transportation in the clathrate hydrate formed. It has higher volumetric energy storage with the ease to handle not to mention its safety. Effects of different hydrate promoters, including methyl ester sulfonate (MES), tetrahydrofuran (THF), hollow silica (HS), and sodium dodecyl sulfate (SDS), on the methane hydrate formation was investigated. All experiments were performed in an unstirred tank reactor at desired experimental conditions. The results indicated that all promoters significant enhanced the hydrate formation both kinetics and methane uptake compared with pure water. The increase in the MES …

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Aloe Vera And Health Outcomes: An Umbrella Review Of Systematic Reviews And Meta-Analyses, Saranrat Sadoyu Jan 2020

Aloe Vera And Health Outcomes: An Umbrella Review Of Systematic Reviews And Meta-Analyses, Saranrat Sadoyu

Chulalongkorn University Theses and Dissertations (Chula ETD)

This umbrella review aims to summarize and assess the effects of Aloe vera on health outcomes. Methods: Only systematic reviews and meta-analyses of clinical trials that investigated the effects of Aloe vera on health outcomes were eligible. PubMed, Scopus, Embase, Cochrane database of systematic reviews, CINAHL, and AMED were searched from inception to October 2019. Two independent reviewers extracted data, assessed the methodological quality, and rated the credibility of evidence according to established criteria into convincing, highly suggestive, suggestive, weak, and not significant. Results: Ten articles reporting 71 unique outcomes of Aloe vera were included. Of these, 47 (67%) were …

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Production Of Recombinant Protein Ltb-Ctla4 By Transient Plant-Based Expression Using Geminiviral Vector, Sutita Yiemchavee Jan 2020

Production Of Recombinant Protein Ltb-Ctla4 By Transient Plant-Based Expression Using Geminiviral Vector, Sutita Yiemchavee

Chulalongkorn University Theses and Dissertations (Chula ETD)

Cancer is one of the leading global causes of death. In 2018, WHO estimated that 9.6 million patients died from cancer, with 18.1 million new cases emerged. In recent years, immunotherapy is considered as a treatment improving cancer-related immune function by manipulating the immune checkpoints in the immune system. Cytotoxic-T-lymphocyte antigen 4 (CTLA-4) is a immune checkpoint transmembrane protein. The expression of CTLA-4 on the surface of activated T-cell could downregulate the production and proliferation of cytotoxic T-lymphocyte cells (CTLs). CTLs are the host-defended immune cells that could retard the growth of cancer cells by recognizing the tumor-associated antigens expressed …

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Production Of Biodegradable Uv Protection Film Using Cellulose And Lignin Extracted From Oil Palm Empty Fruit Bunch, Muhammad Taufiq Haqiqi Jan 2020

Production Of Biodegradable Uv Protection Film Using Cellulose And Lignin Extracted From Oil Palm Empty Fruit Bunch, Muhammad Taufiq Haqiqi

Chulalongkorn University Theses and Dissertations (Chula ETD)

The optimized process for cellulose extraction from oil palm empty fruit bunch (EFB) consisting of acid pretreatment (0.5% (v/v) H2SO4), alkaline extraction (15% (w/w) NaOH), and chlorine-free bleaching (10% (w/v) H2O2) yielded pulp with the highest cellulose content at 83.42%. The EFB cellulose was then etherified into carboxymethyl cellulose (CMC) which was readily water-soluble (81.32%). The EFB CMC (2.5% (w/v)) was blended with glycerol (0.5 % (w/v)) to produce a composite film by a solution casting method. Lignin obtained from acid precipitation of the EFB black liquor was added into the film at different concentrations, and its influence on the …

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Turbulent Flow Of Water-Based Algorithm In Truss Optimization, Saw Thiri Khaing Jan 2020

Turbulent Flow Of Water-Based Algorithm In Truss Optimization, Saw Thiri Khaing

Chulalongkorn University Theses and Dissertations (Chula ETD)

This thesis presents the novel Turbulent Flow of Water-based Optimization (TFWO) algorithm for the optimal design of structures under applied forces. The method has been inspired by the natural and random responses of vortices in rivers, seas and oceans. The design problem minimizes the total cost (viz., weight or volume) of the structure with the optimal distribution of its member sizes such that the safety and integrity of the resulting structure can be attained. It is formulated as the challenging nonlinear programming problem under the simultaneous ultimate strength and serviceability criteria. The proposed algorithm is encoded as a MATLAB code …

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Synthesis Of Substituted Stilbene Probes Towards The Investigation Of Antagonistic Effects Observed With 3,5-Substituted Paraben Derivatives, Bethany Adams Jan 2020

Synthesis Of Substituted Stilbene Probes Towards The Investigation Of Antagonistic Effects Observed With 3,5-Substituted Paraben Derivatives, Bethany Adams

Longwood Senior Theses

In practice, antagonistic xenoestrogen compounds have been used as drugs to treat cancer. Traditional strategies, include preparation of estrogen receptor antagonists exhibiting high affinity for the receptor while preventing rearrangement of the AF-2 binding domain. In a potentially new strategy, substituted parabens have proven to act as antagonists but do not bear the large sidechain associated with this common antagonist strategy. Weak phenolic interactions make determining such paraben binding confirmations and mode of action difficult. To investigate these activities associated with hindered phenolic compounds, substituted bisphenol probes have been synthesized via Wittig protocols to produce a series of stilbene derivatives. …

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การสำรวจปัญหาและแนวทางพัฒนานโยบายเพื่อส่งเสริมคุณภาพชีวิตของแรงงานในอุตสาหกรรมภาพยนตร์ไทย, ณัฐนันท์ เทียมเมฆ Jan 2020

การสำรวจปัญหาและแนวทางพัฒนานโยบายเพื่อส่งเสริมคุณภาพชีวิตของแรงงานในอุตสาหกรรมภาพยนตร์ไทย, ณัฐนันท์ เทียมเมฆ

Chulalongkorn University Theses and Dissertations (Chula ETD)

การวิจัยนี้มีวัตถุประสงค์เพื่อ 1) สำรวจปัญหาที่ส่งผลกระทบต่อคุณภาพชีวิตแรงงานในอุตสาหกรรมภาพยนตร์ไทย และ 2) นำเสนอแนวทางพัฒนานโยบายเพื่อส่งเสริมคุณภาพชีวิตของแรงงานในอุตสาหกรรมภาพยนตร์ไทย งานวิจัยนี้เป็นงานวิจัยเชิงคุณภาพ ใช้การวิจัยเอกสาร ร่วมกับการสัมภาษณ์เชิงลึก กลุ่มผู้ผลักดันนโยบายและแรงงานในกองถ่ายทำภาพยนตร์ประเภททีมงานใต้เส้น เป็นเครื่องมือในการเก็บรวบรวมข้อมูล โดยผู้วิจัยได้ประยุกต์ใช้แนวคิดเรื่ององค์ประกอบคุณภาพชีวิต 4 ด้าน มาเป็นกรอบในการศึกษาปัญหา ได้แก่ ร่างกาย จิตใจ ความสัมพันธ์ทางสังคม และสิ่งแวดล้อม ผลการวิจัยพบว่า แรงงานเผชิญกับปัญหาที่ส่งผลกระทบต่อคุณภาพชีวิตทั้ง 4 ด้าน โดยปัญหาที่มีความสำคัญที่สุดคือ ปัญหาสุขภาพและการพักผ่อน ปัญหาอุบัติเหตุในการทำงาน ปัญหาที่เกิดจากสภาวะทางจิตใจและอารมณ์ เป็นต้น โดยผู้วิจัยหยิบยกปัญหาที่มีความสำคัญเหล่านี้มานำเสนอเป็นแนวทางพัฒนานโยบายเพื่อส่งเสริมคุณภาพชีวิตของแรงงานในอุตสาหกรรมภาพยนตร์ไทย ในรูปแบบข้อเสนอแนะต่อ ยุทธศาสตร์การส่งเสริมอุตสาหกรรมภาพยนตร์และวีดิทัศน์ ประกอบไปด้วยแนวทาง ส่งเสริมมาตรฐานความปลอดภัย คุ้มครองชั่วโมงการทำงานที่เป็นธรรม ส่งเสริมการศึกษาด้านภาพยนตร์ให้สอดคล้องกับมาตรฐานวิชาชีพ สนับสนุนการรวมกลุ่มของแรงงาน และ พัฒนาหน่วยงานด้านภาพยนตร์ที่มีบทบาทต่อการกำกับดูแลโดยตรง ซึ่งเป็นข้อมูลสนับสนุนให้การออกแบบแนวทางการแก้ไขปัญหาของภาครัฐมีเหตุผลประกอบการตัดสินใจ และมีหลักเกณฑ์การพิจารณาที่ครอบคลุมในหลากหลายมิติ

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