Digital Commons Network^™

Effect Of Konjac Glucomannan On The Hygroscopic Characteristics Of Cut Tobacco, Liang Miao, Zhang Guo, Liu Cuimei, Li Bin, Zhang Ke, Lv Bin

Food and Machinery

The effect of konjac glucomannan (KGM) addition on the hygroscopic characteristics of cut tobacco was investigated by using isothermal adsorption/desorption ability testing device. The results showed that the introduction of KGM humectant enhanced the moisture holding capacity of cut tobacco and slowed down the water loss process. The drying rate constants (k) calculated using Henderson & Pabis model were reduced to varying degrees for cut tobacco from different parts of a tobacco plant. In addition, the isothermal sorption and desorption curves exhibited the form of adsorption curve type III. The addition of KGM can effectively increase hygroscopic hysteresis of cut …

Progress And Strategy On The Reason Of Slow And Stuck Fermentation Of Icewine, Ma Xinjuan, Sun Yumei, Xie Shiyi

Food and Machinery

Icewine fermentation would face with many challenges of slow and stuck fermentation, which would cause some problems in the processing and its quality. The reasons causing slow and stuck fermentation and the relative changes of main icewine composition were reviewed. The main reasons for the slow and stuck fermentation of ice wine was found to be the unsuitable composition and the improper fermentation process, and the corresponding strategies for solving the problems were also proposed.

The Research Progress On Antimicrobial Activity, Mechanism And Application Of Plant Polyphenols, Fei Peng, Zhao Shengjuan, Chen Xi, Xiang Jinle, Yang Tongxiang, Xu Yunfeng, Zhou Lianxin, Guo Ling, Kang Huaibin

Food and Machinery

In this review, the antimicrobial effect of plant polyphenols on foodborne pathogenic microorganisms was firstly comprehensively summarized, and the antimicrobial mechanisms of plant polyphenols were elucidated from the aspects of cell morphology destruction, cell membrane potential, normal energy metabolism and inhibition of macromolecular synthesis. Moreover, the applications of plant polyphenols as potential preservatives in food fresh keeping and storage were generalized. Finally, the current problems about antimicrobial mechanisms and applications of plant polyphenols were analyzed.

Research Progress On The Application Of Nano-Cellulose In Food Industry, Cai Chenchen, Lu Dengjun, Ma Ruijia, Liu Tao, Fan Zhuoxi, Lv Mingda

Food and Machinery

Nanocellulose has unique structure, mechanical and optical properties, such as high surface area and high aspect ratio, rheological properties and non-cytotoxicity and genotoxicity. At present, nanocellulose materials have been studied in automobile, construction and textile industries, but they still have great potential in food industry. In this paper, the types of nanocellulose, including microfibrillated cellulose(MFC), nanocellulose crystal (NCC) and bacterial nanocellulose (BNC), as well as the properties of these three nanocellulose and their main preparation methods were briefly summarized. The application of nanocellulose in the field of food, including its use as food additive, functional food ingredients and food packaging …

Lsu Computational System Biology Gateway For Education, Eroma Abeysinghe, Michal Brylinski, Marcus Christie, Suresh Marru, Marlon Pierce

Faculty Publications

Science gateways are a mechanism for delivering scientific software as a service, especially when the software requires high performance computing (HPC) resources to run effectively. The existence of a science gateway eliminates the user’s need to learn to work with HPC systems and to manage software installations and updates. With well-designed user interfaces, users can more quickly become effective users of scientific applications and can manage information needed for replicating, modifying, and sharing results. All of these efficiency gains enable users to focus more on their research. In addition, science gateways are being identified as an effective educational tool, a …

From Playboy To Prison: When Pornography Use Becomes A Crime, Julie D. Garman, Lisa L. Sample, Sarah A. Steele

Criminology and Criminal Justice Faculty Publications

This study explores pornography use across the lifespan for a sample of registrants convicted of child pornography related offenses. We conducted qualitative life history interviews with nine offenders to examine how offender, victim, and situational factors interact to produce pornography related criminal events. Using a hybrid analytic approach, themes related to persistence in pornography use and the social acceptability of pornography are identified. These themes relate to transitions from legal pornography use to illegal child pornography possession.

Comparison Of The Use Of Wireless Capsule Endoscopy With Magnetic Resonance Enterography In Children With Inflammatory Bowel Disease., Nadia Mazen Hijaz, Thomas M. Attard, Jennifer Colombo, Neil J. Mardis, Craig A. Friesen

Manuscripts, Articles, Book Chapters and Other Papers

Background: Magnetic resonance enterography (MRE) and wireless capsule endoscopy (WCE) are equally accepted modalities for noninvasive screening of small bowel involvement (SBI) in children with Crohn's disease (CD) and indeterminate colitis (IC) albeit there is a paucity of data comparing the two and thereby guiding the clinician in selecting the ideal diagnostic approach. Therefore, the goal of this study is to provide additional evidence for capsule endoscopy role in the evaluation of established Crohn's disease exacerbation compared to MRE in relation to Pediatric Crohn's Disease Activity Index (PCDAI), and histological indices.

Aim: To prospectively compare the findings of MRE and …

Edible Quality Changes And The Correlation Of Yak Rumen Smooth Muscle During Different Age Stages, Li Shengsheng, Li Ruizhe, Zhang Qianglong

Food and Machinery

In order to investigate the edible quality change and correlation of yak rumen smooth muscle under different age. Water content, water holding capacity, cooking loss, shear force, and texture of yak rumen smooth muscle from 1~6 years-old yaks were measured. The results showed that with the increase of age, water content, water holding capacity, cohesiveness, springiness, and gumminess of yak rumen smooth muscle significantly decreased (P＜0.05); cooking loss, shear force, hardness, and chewiness of yak rumen smooth muscle also significantly increased (P＜0.05). Correlation analysis indicated that there were significantly correlation of yak age with water content, water holding capacity, cooking …

Impact Of Evidence-Based Educational Guidelines To Increase Nurse Educator’S Physical Activity At Work And Home, Carol M. Patton

Nursing Faculty Publications

Evidence-based practice peer-reviewed poster presented at Sigma's 30th International Nursing Research Congress, 25-29 July 2019, Calgary, Alberta, Canada.

Creating New Metaphors For Women Engineering Students Through Qualitative Methods, Cliff Haynes

The Qualitative Report

The purpose of this study is to describe female students’ experiences in an engineering living-learning program using metaphorical analysis through a constructivist theoretical perspective. Extant literature uses metaphors from a negative viewpoint or a deficit model to describe the experiences of female undergraduates in engineering; however, new metaphors have not been used to describe the experience. This study aims to fill existing gaps in LLP literature using qualitative methods. Data from 13 semi-structured individual interviews (7 initial interviews and 6 follow-up interviews) serve as the primary data source. After conducting metaphorical analysis, I found five interpretive metaphors emerging: LLP as …

Electrospun Nanofibers Of Polymer Nanocomposite With Cichorium Intybus Extract And Investigating Their Antioxidant And Antibacterial Activities, Ahmed Emadelddin Mohamed

Theses and Dissertations

Micro-organisms causing diseases have been quickly increasing and spreading vastly in their ability to gain resistance against current antibiotics in the market. This results in an enormous mortality rate. Fortunately, Scientists introduced nanotechnology that can further enhance properties of materials in the nanoscale. This allowed further openings to upgrade natural-based products to become more effective and safer than current synthetic antibiotics. In this study, biodegradable polymer nanocomposite made up of Poly Vinyl alcohol (PVA) with Chitosan (CS) was electro-spun using the electro-spinner embedded with Chicory root herbal extract that can potentially be used for targeting Gastro Intestinal Tract (GIT) diseases. …

Ocd And Impulsivity: Considering The Role Of Emotion, Stephanie E. Hudiburgh

Open Access Theses

Obsessive-compulsive disorder (OCD) is a condition marked by recurrent and distressing thoughts, images, and impulses that are typically accompanied by repetitive physical or mental rituals. Previous research has explored impulsivity as a potential risk factor for OCD using a variety of self-report and behavioral measures; however, these studies have yielded inconsistent results. An emerging line of work suggests that emotional precipitation may be an important consideration when looking at the role of impulsivity across the spectrum of psychopathology, including OCD. The current study examined the relationship between symptoms of OCD and emotion-based impulsivity using the Three Factor Impulsivity Index, a …

Nanoporous Gold And Other Related Materials, Keith Stine

Chemistry & Biochemistry Faculty Works

No abstract provided.

Self-Assembly, Integration, Characterizations And Applications Of Plasmonic And Excitonic Nanomaterials, Bijesh Kafle

Chemistry and Chemical Biology ETDs

Plasmon on metal nanoparticles can efficiently confine, amplify light at the nanoscale. This property is beneficial for different applications such as harvesting energy of the broad solar spectrum, highly sensitive spectroscopy, photocatalysis, and many other optoelectronic applications. For plasmonic applications, it is necessary to understand the fundamental physical properties of the individual, coupled plasmonic nanomaterials, and their interaction with the surrounding environment, which is not fully understood yet. In this dissertation, the chemical and optical interaction in plasmonic interfaces has been investigated. Plasmon-enhanced photochemistry of p-aminothiophenol as a model molecule is investigated using highly sensitive surface-enhanced Raman spectroscopy (SERS). The …

Two New Species Of Shrew-Rats (Rhynchomys: Muridae: Rodentia) From Luzon Island, Philippines, Eric A. Rickart, Danilo S. Balete, Robert M. Timm, Phillip A. Alviola, Jacob A. Esselstyn, Lawrence R. Heaney

Faculty Publications

The murine genus Rhynchomys includes the large-bodied Philippine "shrew-rats," highly specialized members of the vermivorous clade of Philippine murids. Four species are recognized, all of which are endemic to Luzon Island: R. soricoides from mountains within the Central Cordillera, R. isarogensis from Mt. Isarog on the Bicol Peninsula, R. banahao from Mt. Banahaw in south-central Luzon, and R. tapulao from Mt. Tapulao in the Zambales Mountains. Field surveys in 2006 and 2008 revealed two additional populations of Rhynchomys, one from Mt. Labo (1,544 m), a dormant stratovolcano at the base of the Bicol Peninsula, the other from Mt. Mingan (1,901 …

Watching “Insidious” – On The Social Construction Of Fear, Charlotte D. Renda

The Qualitative Report

As mass media are an integral part of our everyday lives, their role in constituting emotions and feeling rules receives heightened attention. However, content analyses and psychoanalytical/reaction analyses focus on a film-viewer-relation that does not consider the group character of media consumption. This article deals with the question of how fear is socially constructed and interactively negotiated by taking an ethnomethodological look at videos that teenagers have taken of themselves while watching the horror movie Insidious. It puts forward two inter-related forms of ambiguity: the ambiguity of what emotions are appropriate, that is, the ways in which feeling rules are …

Climate Risk And Private Participation Projects In Infrastructure: Mitigating The Impact Of Locational (Dis)Advantages, Nathaniel C. Lupton, Alfredo Jiménez, Secil Bayraktar, Dimitrios Tsagdis

Faculty Publications

Purpose

The purpose of this paper is to investigate the impact of climate risk on the success vs failure of foreign direct investments (FDIs) in private participation infrastructure (PPI) projects. The authors also consider the extent to which project-level characteristics mitigate such risks.

Design/methodology/approach

The authors study a sample from the World Bank covering 18,846 projects in 111 countries from 2004 to 2013. The authors apply logistic regressions to determine the impact of climate risk and mitigating project characteristics on project failure.

Findings

The authors find that higher levels of climate risk at the host country level are associated with …

Abstract Book (Pdf), Lsu Health School Of Medicine

Summer Research Internship Program

No abstract provided.

Solar Eclipse Has Little Discernible Effect On Bat Activity, Michael J. Bender, Sara Robertson

Georgia Journal of Science

N/A - Research Note

Billfish Behavior And Habitat Use In The Presence Of Environmental Forcing And Commercial Exploitation, Bruce Gibbs Pohlot

Open Access Dissertations

The Pacific Sailfish (Istiophorus platypterus) and Blue Marlin (Makaira nigricans) are vital resources to Central American economies along the eastern tropical Pacific Ocean through recreational catch-and-release fisheries and as retainable bycatch in commercial fisheries. Because of observed stock declines and a lack of a formal stock assessment research, there exists an immediate need to understand sailfish and blue marlin population dynamic characteristics to design fishery regulations to protect both species and fisheries. Therefore, the goal of this dissertation was to understand the sailfish and blue marlin behavior and dynamic habitat use in the Eastern Pacific Ocean (EPO) in support of …

Health Disparities In The Incidence And Survival Of Women With Ovarian Cancer In Florida: A Florida Cancer Database System Analysis, Ashly C. Westrick

Open Access Dissertations

Ovarian cancer is the deadliest gynecological cancer in the United States. Despite improvements in the incidence and survival of women with ovarian cancer, racial/ethnic disparities still exist. Determining the epidemiology of a disease and the distribution within the population is critical to establish research priority areas and help guide public health programs and policies. Identifying and describing population disparities in health is important to provide evidence for targeted interventions. As the Ecosocial theory of disease distribution explicates, racial/ethnic disparities are multifactorial and often emerge from the embodiment of biological, social and historical exposures both within the individual and high-level factors …

Evaluation Of Recreational Fishing Demand For Billfish Resources In Guatemala, Julie Elizabeth Brown

Open Access Dissertations

Bycatch mortality from commercial tuna fisheries threatens billfish populations in the Eastern Pacific Ocean, which are also used for lucrative recreational tourism industries. The recreational billfish fishery in Guatemala is characterized by seasonally high daily sailfish catch rates, consistently 2-3 times higher than anywhere else on Earth, and is entirely catch-and-release. The anglers are predominantly tourists, bringing financial contributions to Guatemala. Until now, Guatemala’s government and international tuna management organizations could not consider the value of this sustainable use of billfish resources, because previous estimates were poorly defined and estimated. We used an innovative, market-based technique to estimate the value …

Taking Flight With The Biology Department, Taylor University

2019 Website News Stories

No abstract provided.

Reproductive Ecology And Movement Of Pallid Sturgeon In The Upper Missouri River, Montana, Luke M. Holmquist, Christopher S. Guy, Anne Tews, David J. Trimpe, Molly A.H. Webb

United States Fish and Wildlife Service: Publications

Successful recruitment of endangered pallid sturgeon has not been documented in the upper Missouri River basin for decades, and research on the reproductive ecology of pallid sturgeon has been hindered by low sample size. A conservation propagation program was initiated in the 1990s, and the oldest age class of hatchery‐origin pallid sturgeon are becoming sexually mature increasing the number of reproductively‐ active fish in the system. However, it is currently unknown how the reproductive ecology of hatchery‐origin pallid sturgeon relates to the few remaining wild fish. Following spring reproductive assessments, weekly relocations were recorded for each individual from late‐May to …

Teaching Neuroanatomy Through Clinical Cases, James R. Munoz

Faculty Proceedings, Presentations, Speeches and Lectures

Learning neuroanatomy can be a daunting task for many students. Presenting brief case studies may help students (1) better understand the relationship between structure and function, (2) recognize how pathology affects behavior, and (3) encourage further discussions. This workshop will focus on several case studies with the intention of creating a more meaningful learning experience.

Main And Interactive Effects Of Increased Precipitation And Nitrogen Addition On Growth, Morphology, And Nutrition Of Cinnamomum Burmanni Seedlings In A Tropical Forest, Jun Wang, Dafeng Hui, Hongfang Lu, Faming Wang, Nan Liu, Zhongyu Sun, Hai Ren

Biology Faculty Research

Global change such as altered precipitation patterns and increased atmospheric nitrogen (N) deposition will have significant impacts on seedling growth during plant recruitment. However, how interactive effects of increased precipitation and N deposition on forest seedling performance have not been well investigated. In this study, we conducted a two-year field experiment that manipulating precipitation amount (ambient rainfall and 25% increment during the wet season) and exogenous N addition (0 and 100 kg ha−1 yr−1) in a tropical secondary forest. Seedling growth, morphology and nutritional status of a dominant tree species (Cinnamomum burmanni) were measured. Results showed that increased precipitation had …

Excluding Women, Catherine Dauvergne, Hannah Lindy

All Faculty Publications

This article reviews 16 years of Canadian case law applying the Refugee Convention’s exclusion provisions to women. Despite a quarter of a century of strong scholarly and policy-making work asserting the need for attention to gender in refugee law, this dataset shows that, in questions of exclusion, gendered analysis is almost entirely absent. By contrast, in seeking explanations for the factual basis of exclusion in these cases, gender is almost always an explanatory factor. This stark observation leads us to conclude that significant additional work – both scholarly and policy-focused – is required. The article also considers whether a more …

Reconstruction Of Northeastern Pacific Ocean Holocene Production Using Marine Mammal Archaeofauna, Andrea M. Traffichini

HCNSO Student Theses and Dissertations

Changes in marine production play a key role in determining the trophic structure of the northeastern Pacific Ocean. This is a region of great environmental fluctuations due to modern, historical, and paleo-environmental variability recorded throughout the Holocene. These fluctuations are recorded in the bone collagen of the marine mammals that reside in these waters. Marine mammal remains from four previously excavated archaeological deposits on Unalaska Island, Alaska are used as a proxy for marine production changes throughout the Holocene (4,500 BP to 350 BP). Historic and modern samples from museum collections, subsistence harvests, and previously published data provide a distinct …

Chloride To The Rescue, Marcia E. Newcomer

Faculty Publications

© 2019 Newcomer. On the fiftieth anniversary of the discovery of the Ser-His-Asp catalytic triad, perhaps the most unusual variation on the textbook classic is described: An incomplete catalytic triad in a hydrolase is rescued by a chloride ion (Fig. 1). Structural and functional data provide compelling evidence that the active site of a phospholipase from Vibrio vulnificus employs the anion in place of the commonly observed Asp, reminding us that even well-trodden scientific ground has surprises in store.

Persistence And Turnover In Desert Plant Communities During A 37-Yr Period Of Land Use And Climate Change, Scott R. Abella, Ross J. Guida, Chris L. Roberts, Carrie M. Norman, James S. Holland

Life Sciences Faculty Research

Understanding long‐term changes in ecological communities during global change is a priority for 21st‐century ecology. Deserts, already at climatic extremes, are of unique interest because they are projected to be ecosystems most responsive to global change. Within a 500‐km2 landscape in the Mojave Desert, USA, we measured perennial plant communities at 100 sites three times (1979, 2008, and 2016) during 37 yr to evaluate six hypotheses of community change. These hypotheses encompassed shifts in community measures (e.g., diversity, cover) and species elevational distributions, biotic homogenization, disproportionately large change at the highest elevations, relationships between turnover and species’ responses to disturbance …