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Field-Based Scoring Of Soybean Iron Deficiency Chlorosis Using Rgb Imaging And Statistical Learning, Geng Bai, Shawn Jenkins, Wenan Yuan, George L. Graef, Yufeng Ge

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Iron deficiency chlorosis (IDC) is an abiotic stress in soybean that can cause significant biomass and yield reduction. IDC is characterized by stunted growth and yellowing and interveinal chlorosis of early trifoliate leaves. Scoring IDC severity in the field is conventionally done by visual assessment. The goal of this study was to investigate the usefulness of Red Green Blue (RGB) images of soybean plots captured under the field condition for IDC scoring. A total of 64 soybean lines with four replicates were planted in 6 fields over 2 years. Visual scoring (referred to as Field Score, or FS) was conducted …

การพัฒนาอุปกรณ์วิเคราะห์ฐานกระดาษสำหรับหาปริมาณสารเพรดนิโซโลนและเดกซาเมทาโซนที่ปลอมปนในผลิตภัณฑ์สมุนไพรด้วยวิธีเคมีไฟฟ้า, วิศรุต พริ้มพราย

Chulalongkorn University Theses and Dissertations (Chula ETD)

การปลอมปนของสารสเตียรอยด์ชนิดเดกซาเมทาโซนและเพรดนิโซโลนในผลิตภัณฑ์สมุนไพรเป็นปัญหาสำคัญที่ก่อผลเสียร้ายแรงต่อสุขภาพของผู้ใช้ ในหลาย ๆ ประเทศทั่วโลก โดยเฉพาะอย่างยิ่งในประเทศกำลังพัฒนา งานวิจัยนี้ ประสบความสำเร็จในการพัฒนาอุปกรณ์สำหรับแยกและตรวจวัดปริมาณการปลอมปนของสารสเตียรอยด์ดังกล่าว โดยใช้อุปกรณ์ตรวจวิเคราะห์ฐานกระดาษและใช้หลักการทางเคมีไฟฟ้า (electrochemical paper-based analytical device หรือ ePAD) ซึ่งประกอบด้วยกระดาษ Whatman SG81 ตลับพลาสติกจากการพิมพ์สามมิติ และขั้วไฟฟ้าชนิด screen printed electrode โดยกระดาษ Whatman SG81 ใช้สำหรับแยกสารสเตียรอยด์ชนิดเดกซาเมทาโซนและเพรดนิโซโลน โดยใช้วัฏภาคเคลื่อนที่เป็นสารละลาย 60% ethyl acetate ใน cyclohexane ซึ่งผลการศึกษาพบว่าสามารถแยกสารสเตียรอยด์ดังกล่าวออกจากสิ่งเจือปนต่าง ๆ ได้ภายใน 7 นาที สารสเตียรอยด์ที่แยกออกจากกันบนกระดาษ นำมาวัดปริมาณด้วยเทคนิคเคมีไฟฟ้าชนิด differential pulse voltammetry โดยใช้ตลับพลาสติกจากการพิมพ์สามมิติที่ถูกออกแบบทำให้สารละลายอิเล็กโทรไลต์ถูกขังอยู่บนกระดาษ ทำให้สามารถตรวจวัดสัญญาณทางเคมีไฟฟ้าได้คงที่ ซึ่งอุปกรณ์ที่พัฒนาขึ้นสามารถตรวจวัดปริมาณปลอมปนของสารสเตียรอยด์ทั้งชนิดเดกซาเมทาโซนและ เพรดนิโซโลนได้ในช่วงความเข้มข้นระหว่าง 10 ถึง 500 µg/mL โดยมีค่าสัมประสิทธิ์สหสัมพันธ์เท่ากับ 0.988 และ 0.994 ตามลำดับ มีขีดจำกัดในการตรวจวิเคราะห์เชิงคุณภาพเท่ากับ 3.59 µg/mL และ 6.00 µg/mL ตามลำดับ และขีดจำกัดในการตรวจวิเคราะห์เชิงปริมาณมีค่าเท่ากับ 11.98 µg/mL และ 20.02 µg/mL ตามลำดับ การตรวจวัดปริมาณปลอมปนของสารสเตียรอยด์ทั้งสองชนิดในสิ่งตัวอย่างผลิตภัณฑ์สมุนไพรจริงด้วยวิธีที่พัฒนาขึ้นมีค่าสอดคล้องกับผลที่ตรวจด้วยวิธี HPLC และเป็นวิธีที่ใช้งานง่าย มีต้นทุนต่ำ รวดเร็ว และมีศักยภาพนำไปใช้ตรวจหาสิ่งตัวอย่างผลิตภัณฑ์สมุนไพรที่สงสัยว่ามีการปลอมปนของสารสเตียรอยด์ ในระดับภาคสนาม

Gene Expression And Lipid Accumulation In Green Microalga Chlamydomonas Reinhardtii (137c) Under Salt Stress Condition, Thanapa Atikij

Chulalongkorn University Theses and Dissertations (Chula ETD)

Biodiesel is an important alternative energy that can reduce CO2 emission, the main cause of Global warming. Algal biomass has been considered to be the third generation biofuels. One of the important strategies that enhance lipid accumulation; precursor of biodiesel production, is stress cultivation. High salt concentration is one of a potential approach to enhance lipid accumulation in microalgae. Here, we investigated the impacts of salt on lipid accumulation in green microalga Chlamydomonas reinhardtii (137c). The results revealed that higher concentrations of NaCl, KCl, and LiCl led to increasing of saturated fatty acid contents for 1.8, 1.2, and 1.1 folds …

Development Of In Situ Gel Containing Asiaticoside-Cyclodextrin Complex For Periodontal Tissue Regeneration, Hay Man Saung Hnin Soe

Chulalongkorn University Theses and Dissertations (Chula ETD)

Asiaticoside (AS) is active herbal compound isolated from Centella asiatica. It has the potential benefit in promoting type I collagen (COL I) synthesis and osteogenic differentiation in human periodontal ligament cells. However, it has low aqueous solubility which may hamper the bioavailability. Thus, the main objective of this study was to develop the thermoresponsive in situ gels containing AS by using cyclodextrin (CD). To determine the solubility enhancement of AS, phase-solubility profiles were investigated and revealed that CDs enhanced the aqueous solubility of AS. Hydroxypropyl-beta-CD (HPβCD) and sulfobutyl-ether-beta-CD (SBEβCD) were selected due to highly solubilization enhancement of AS. The mucoadhesive …

Promoting Physical Activity And Healthy Eating Behaviorby Nurse Coaching Through Line Application Among Overweight Women In Community, Phayathai District, Bangkok Thailand:A Randomized Controlled Trial, Yuphaporn Hongchuvech

Chulalongkorn University Theses and Dissertations (Chula ETD)

The prevalence of overweight and obesity is increased rapidly and becoming a public health problem in many countries of the world including Thailand. Overweight increases the risk of several NCDs. The prevalence of overweight was higher in female than male. The imbalance between energy intake and energy expenditure were the common cause of overweight. The aim of this study was to evaluate the effect of health promotion program by nurse coaching through LINE application to improve knowledge, perception, and practice of physical activity and healthy eating behavior, body composition, blood pressure, and blood glucose among overweight women. A randomized controlled …

Comparison Of The Ocular Microbiome On Ocular Surface Between Chronic Stevens-Johnson Syndrome Patients And Healthy Subjects, Thanachaporn Kittipibul

Chulalongkorn University Theses and Dissertations (Chula ETD)

Background: Stevens-Johnson syndrome (SJS) usually causes ocular surface disease. 35% of these patients develop chronic ocular sequelae including symblepharon, limbal stem cell deficiency, etc. The sequelae from SJS may also affect the alteration of ocular microbiome. Subjects: 20 chronic SJS patients and 20 healthy subjects were enrolled for specimen collection from inferior conjunctiva for microbiome analysis by using conventional culture and next-generation sequencing(NGS) methods Methods: Prospective, age and sex matched analytical study Results: A significant higher proportion of culture-positive specimen was demonstrated in SJS group (SJS group 60%, healthy 10%, p-value=0.001). In SJS group, we found significantly higher severity score …

Numerical Simulation And Optimization Of Commercial Sterilization Of Liquid Enteral Nutrition Using Batch Microwave Heating, Tanathep Leungtongkum

Chulalongkorn University Theses and Dissertations (Chula ETD)

This thesis contains 3 parts. The first part was to investigate the effect of ingredients on product’s stability and to find optimized oral-feeding enteral nutrition formulas. Since oral-feeding enteral nutrition is high in caloric density, it contains a high amount of calorie sources. Thus, it is likely to have either too high viscosity and/or unstable emulsion. Consequently, 9 factors which are caloric content, oil type, lecithin concentration, fructose syrup to acid ratio, percentage of hydrolyzed whey protein to total protein, percentage of calorie from fat and from fructose syrup to total calorie, complex whey protein concentration, and percentage of whey …

Pest Analysis Based On Neutrosophic Cognitive Maps: A Case Study For Food Industry, Ramona Parraga Alava, José Muñoz Murillo, Roy Barre Zambrano, María Isabel Zambrano Vélez

Neutrosophic Sets and Systems

No abstract provided.

Compliance Theory: A Case Study Approach In Understanding Organizational Commitment, Nelson J. Celis

DLSU Business & Economics Review

The Electronic Commerce (e-Commerce) Act of 2000 or Republic Act (RA) No. 8792 mandates all government agencies to transact business and perform government functions using electronic documents within two years from the date of its effectivity in June 2000. Unfortunately, only a handful of government agencies were ready to implement the said law in the year 2002 despite the availability of applicable information technology (IT) resources and appropriated budget. After 17 years, there is considerable improvement in the compliance with the said law, though there are still non-compliances of government offices that could not manage to be at par with …

Analysis Of Food Demand Elasticity Of Rice For The Poor In Aceh, Indonesia: An Almost Ideal Demand System Approach, -- Suriani, Diana Sapha A.H, Cut Zakia Rizki

DLSU Business & Economics Review

The purpose of this study is to empirically explore the effect of rice for the poor (Raskin) or subsidized rice consumption on the food demands elasticity of poor households. The study utilizes the primary data collected in 2015 based on the purposive sampling method for establishing the homogeneity characteristics of Raskin beneficiary’s households. An Almost Ideal Demand System approach is adopted to measure the proportion of food commodities expenditure of the poor and the demand elasticity as well as their responses to the income elasticity. Additionally, the correlation analysis is utilized to investigate the relationship between the selected socioeconomic variables …

The Good, The Bad, And The Ugly Of Calcium Supplementation: A Review Of Calcium Intake On Human Health., Kelvin Li, Xia-Fang Wang, Ding-You Li, Yuan-Cheng Chen, Lan-Juan Zhao, Xiao-Gang Liu, Yan-Fang Guo, Jie Shen, Xu Lin, Jeffrey Deng, Rou Zhou, Hong-Wen Deng

Manuscripts, Articles, Book Chapters and Other Papers

Calcium is an important integrative component of the human body and critical for human health. It has been well established that calcium intake is helpful in the prevention and treatment of osteoporosis, which has become one of the most serious public health problems across the world. However, community-dwelling adults with and without osteoporosis are rarely concerned or even not aware of the potential side effects of high or inappropriate doses of calcium intake. Some recent studies have revealed that excessive calcium intake might increase the risks of cardiovascular diseases. The purpose of this article was to review the health benefits, …

Effects Of Point-Of-Purchase Marketing On Selection Of Vegetables In A University Greek House Food Service, Shelton Wittenberg, Kathy B. Knight, Scott S. Knight, Georgianna Mann, Melinda Valliant

Faculty and Student Publications (Open Access)

No abstract provided.

Microbiology: A Laboratory Experience, Holly Ahern

Milne Open Textbooks

As a group of organisms that are too small to see and best known for being agents of disease and death, microbes are not always appreciated for the numerous supportive and positive contributions they make to the living world. Designed to support a course in microbiology, Microbiology: A Laboratory Experience permits a glimpse into both the good and the bad in the microscopic world. The laboratory experiences are designed to engage and support student interest in microbiology as a topic, field of study, and career.

This text provides a series of laboratory exercises compatible with a one-semester undergraduate microbiology or …

Role Of Natural Antioxidants From Functional Foods In Neurodegenerative And Metabolic Disorders, José Carvalho, Caio P. Fernandes, Júlio Beltrame Daleprane, Maria Silvana Alves, Didier Stien, N. P. Dhammika Nanayakkara

Faculty and Student Publications (Open Access)

No abstract provided.

India-United States Dialogue On Traditional Medicine: Toward Collaborative Research And Generation Of An Evidence Base, Jeffrey White, Barry R. O’Keefe, Jitendra Sharma, Ghazala Javed, Vid Nukala, Aniruddha Ganguly, Ikhlas A. Khan, Nagi B. Kumar, Hasan Mukhtar, Guido F. Pauli, Larry Walker, Sudha Sivaram, Preetha Rajaraman, Edward L. Trimble

Faculty and Student Publications (Open Access)

Therapies originating from traditional medical systems are widely used by patients in both India and the United States. The first India-US Workshop on Traditional Medicine was held in New Delhi, India, on March 3 and 4, 2016, as a collaboration between the Ministry of Ayurveda, Yoga and Naturopathy, Unani, Siddha, and Homoeopathy (AYUSH) of the Government of India, the US National Cancer Institute (NCI), National Institutes of Health, and the Office of Global Affairs, U.S. Department of Health and Human Services. It was attended by Indian and US policymakers, scientists, academics, and medical practitioners from various disciplines. The workshop provided …

The Impact Of Physically Active Brain Breaks On College Students’ Activity Levels And Perceptions, Alicia Stapp, Laura F. Prior

Faculty and Student Publications (Open Access)

No abstract provided.

Bioassay-Guided Isolation And Identification Of Aedes Aegypti Larvicidal And Biting Deterrent Compounds From Veratrum Lobelianum, Nurhayat Tabanca, Zulfıqar Ali, Ulrich R. Bernier, Nancy D. Epsky, Ayşe Nalbantsoy, Ikhlas A. Khan, Abbas Alı

Faculty and Student Publications (Open Access)

No abstract provided.

Adolescent Weight Perceptions And Snack Food Portion Estimation, Georgianna Manna, Lauren Woodard Parrish, Jo Jangwooc, Melinda Valliant

Faculty and Student Publications (Open Access)

No abstract provided.

The Geographic Mosaic Of Wolbachia Infection In Melanitis Leda Butterfly Populations, Brandon E. Latorre

Dissertations and Theses

Insects are the most species-rich multicellular taxon on the planet, and it is estimated that more than half of all insect species are infected with the endosymbiont Wolbachia. This bacterium can manipulate the reproduction of its host and potentially affect host evolution. Most surveys investigating patterns of Wolbachia infection in nature sample limited numbers of individuals; population-level investigations into geographic differences in infection status that might affect host evolution are few. To investigate geographic variability among populations of a single species, we assayed 133 Melanitis leda butterflies (Lepidoptera: Nymphalidae: Satyrinae) for Wolbachia infection collected throughout its range in the …

Wood Trait Preferences Of Neotropical Xylophagous Beetles (Coleoptera: Cerambycidae), Christina Torres

Dissertations and Theses

Tree life history strategies are correlated with functional plant traits, such as wood density (WD), moisture content (MC), bark thickness (BT), and nitrogen content (N); these traits affect the nutrients available to xylophagous insects. Cerambycid beetles feed on substrates that vary in these traits, but little is known about how they affect community composition. The goal of this project is to document the abundance of two cerambycid subfamilies (Cerambycinae and Lamiinae) and the WD, MC, BT, and N content in the wood they eat. In a salvage project conducted adjacent to the Panama Canal, trees were felled and exposed to …

Regulation By Database, Nathan Cortez

Faculty Journal Articles and Book Chapters

The federal government currently publishes 195,245 searchable databases online, a number of which include information about private parties that is negative or unflattering in some way. Federal agencies increasingly publish adverse data not just to inform the public or promote transparency, but to pursue regulatory ends ⎯ to change the underlying behavior being reported. Such "regulation by database" has become a preferred method of regulation in recent years, despite scant attention from policymakers, courts, or scholars on its appropriate uses and safeguards.

This Article, then, evaluates the aspirations and burdens of regulation by database. Based on case studies of six …

Lowest Postoperative Prealbumin Is Associated With Worse Outcomes Following Robotic-Assisted Pulmonary Lobectomy, Anastasia Jermihov, Athanasios Tsalatsanis Phd, Shruti Kulkarni, Frank Velez, Carla Moodie Pa-C, Joseph Garrett Mph, Arnp-C, Jacques-Pierre Fontaine Md, Eric Tolozoa Md, Phd

USF-LVHN SELECT

No abstract provided.

Sedentary Time And The Cumulative Risk Of Preserved And Reduced Ejection Fraction Heart Failure: From The Multi-Ethnic Study Of Atherosclerosis, Brandi Scot Rariden

UNF Graduate Theses and Dissertations

ABSTRACT

Purpose: The purpose of this study was to examine the relationship between self-reported sedentary time (ST) and the cumulative risk of preserved ejection fraction heart failure (HFpEF) and reduced ejection fraction heart failure (HFrEF) using a diverse cohort of U.S. adults 45-84 years of age.

Methods: Using data from the Multi-Ethnic Study of Atherosclerosis (MESA), we identified 6,814 subjects (52.9% female). All were free of baseline cardiovascular disease. Cox regression was used to calculate the hazard ratios (HR) associated with baseline ST and risk of overall heart failure (HF), HFpEF, and HFrEF. Weekly self-reported ST was dichotomized …

Framing Contemporary U.S. Wild Horse And Burro Management Processes In A Dynamic Ecological, Sociological, And Political Environment, J. Derek Scasta, Jacob D. Hennig, Jeffrey L. Beck

Human–Wildlife Interactions

The Wild Free-Roaming Horses and Burros Act (WFRHBA) of 1971 established all “unbranded or unclaimed” equids on U.S. public lands as “living symbols of the historic and pioneer spirit of the West.” Today, >72,000 feral horses (Equus ferus caballus) and burros (E . asinus ; WHB) live on western U.S. public rangelands. The number of WHBs exceeds the Bureau of Land Management’s maximum Appropriate Management Level (AML) of 26,715 by a factor of approximately 2.7 and has nearly doubled from 2007–2015. The AML was set to balance WHB numbers with rangeland health and support other uses such as wildlife habitat …

Resource Selection Of Free-Ranging Horses Influenced By Fire In Northern Canada, Sonja E. R. Leverkus, Samuel D. Fuhlendorf, Marten Geertsema, Brady W. Allred, Mark Gregory, Alexandre R. Bevington, David M. Engle, J. Derek Scasta

Human–Wildlife Interactions

Free-ranging or feral horses (Equus ferus caballus) were important to the livelihood of First Nations and indigenous communities in Canada. The early inhabitants of the boreal region of British Columbia (BC) capitalized on naturally occurring wildfires and anthropogenic burning to provide forage for free-ranging horses and manage habitat for wildlife. This form of pyric herbivory, or grazing driven by fi re via the attraction to the palatable vegetation in recently burned areas, is an evolutionary disturbance process that occurs globally. However, its application to manage forage availability for free-ranging horses has not been studied in northern Canada. Across Canada, there …

Experimental Tests Of Nonsurgical Reproductive Inhibitors To Prevent Coyote Reproduction, Julie K. Young, Marjorie J. Macgregor, Eric M. Gese, Douglas C. Eckery

Human–Wildlife Interactions

Sterilization is an effective nonlethal tool to reduce livestock depredation by coyotes (Canis latrans) because adults without pups to provision are less likely to kill livestock. Surgical sterilization is costly and invasive, so identifying non-surgical methods for canids that allows wide-scale application is important. We conducted a preliminary assessment of two types of reproductive inhibitors (gonadotropin releasing hormone (GnRH) vaccine and deslorelin, a GnRH agonist, on coyote reproductive capabilities. We treated captive coyotes with a GnRH vaccine (n = 6 males, n = 6 females) or deslorelin (n = 6 males), measured number of litters and pups born, …

Can The Vaquita Be Saved From Extinction?, Gerardo Rodríguez-Quiroz, Wenceslao Valenzuela-Quiñonez, Héctor A. González-Ocampo, Alfredo Ortega-Rubio

Human–Wildlife Interactions

The vaquita (Phocoena sinus) is considered the world’s most endangered marine mammal. It is the smallest member of the porpoise family endemic to the upper part of the Gulf of California. The current population is estimated at less than 30 individuals. The primary reasons for the species decline includes limited habitat and incidental mortalities associated with illegal gillnet fishing activities. Since 2008, the Mexican government has taken environmental and economic actions to protect the vaquita’s focusing in reducing by-catch deaths to zero. In 2015, a federal Agreement decreed by the Secretaría de Agricultura, Ganadería, Desarrollo Rural, Pesca y …

Lead Concentrations In White-Tailed Deer Tissue Due To Retained Bullets, Meghan C. Zimmer, Tod L. Osier

Human–Wildlife Interactions

Mobilization of lead from retained bullets may lead to elevated lead levels in game tissue with consequences for consumers. We investigated lead mobilization in 2 white-tailed deer (Odocoileus virginianus) carrying retained lead ammunition from previous gunshot wounds. Lead concentrations in muscle tissue of deer with retained lead bullets were in the same range as control deer. In contrast, 1 deer had higher bone lead levels than controls, suggesting mobilization occurred. Our results suggest that lead mobilization to meat from retained lead bullets does not appear to pose a consumption risk for those consuming meat that is physically distant from lead …

Librarians In The Lead: A Case For Interdisciplinary Faculty Collaboration On Assignment Design, Rachel Wishkoski, Kacy Lundstrom, Erin Davis

Communications in Information Literacy

Assignment design provides a potential niche for librarians to fill in improving research assignments and in providing opportunities for interdisciplinary collaboration on teaching, but this can be difficult work to claim as librarians. In the 2016-2017 academic year, a team of three librarians at Utah State University, a mid-size research university, piloted an assignment design workshop for faculty. Based on a model developed by the National Institute for Learning Outcomes Assessment (NILOA), our workshop’s core component was a structured, librarian-facilitated small group discussion among three to four faculty members from a range of academic departments. Interdisciplinary conversation about teaching research …

Understanding Financial Conflict Of Interest: Implications For Information Literacy Instruction, Heather B. Perry

Communications in Information Literacy

Libraries have long existed to assist users in accessing accurate information for their needs. Industry has long been motivated to spread disinformation to promote their industry’s message to the public. Although corporate disinformation techniques perfected by the tobacco industry in the 1950’s were exposed, instead of disappearing they have only grown more influential with the rise of the internet. Many industries from petroleum to pharmaceuticals use scientific research to promote their corporate message and have contributed to harming the public. Users need information literacy (IL) to provide them with the skills they need to critically evaluate information and reject the …