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2019

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Who Takes The Bait? Non-Target Species Use Of Bear Hunter Bait Sites, Ellen M. Candler, William J. Severud, Joseph K. Bump Jan 2019

Who Takes The Bait? Non-Target Species Use Of Bear Hunter Bait Sites, Ellen M. Candler, William J. Severud, Joseph K. Bump

Human–Wildlife Interactions

Hunting bears (Ursus spp.) over baits is legal in many countries, states, and provinces, but the practice remains a controversial topic among wildlife managers, hunting groups, and the general public. The baits used to attract bears may also provide a pulsed resource on the landscape that can be used by other wildlife species, particularly carnivores. To determine what other species might use bear bait sites, we constructed and monitored 21 bear bait sites with camera traps from August to October 2016 in the western Upper Peninsula of Michigan, USA. The sites mimicked typical American black bear (U. americanus …


Carnivore-Livestock Conflicts In Chile: Evidence And Methods For Mitigation, Valeska Rodriguez, Daniela A. Poo-Muñoz, Luis E. Escobar, Francisca Astorga, Gonzalo Medina-Vogel Jan 2019

Carnivore-Livestock Conflicts In Chile: Evidence And Methods For Mitigation, Valeska Rodriguez, Daniela A. Poo-Muñoz, Luis E. Escobar, Francisca Astorga, Gonzalo Medina-Vogel

Human–Wildlife Interactions

Human population growth and habitat loss have exacerbated human–wildlife conflicts worldwide. We explored trends in human–wildlife conflicts (HWCs) in Chile using scientific and official reports to identify areas and species with higher risk of conflicts and tools available for their prevention and mitigation. The puma (Puma concolor) was considered the most frequent predator; however, fox (Lycalopex spp.) and free-ranging or feral dog (Canis lupus familiaris) attacks were also common. Our results suggest that the magnitude of puma conflicts may be overestimated. Domestic sheep (Ovis spp.) and poultry (Galliformes) were the most common species predated. …


Predicting Black Bear Activity At Backcountry Campsites In Bryce Canyon National Park, Utah, Wesley G. Larson, Tom Smith Jan 2019

Predicting Black Bear Activity At Backcountry Campsites In Bryce Canyon National Park, Utah, Wesley G. Larson, Tom Smith

Human–Wildlife Interactions

Developing the capacity to predict black bear (Ursus americanus; bear) activity in a diversity of habitats will help conserve bear populations and their habitats and minimize human–bear conflicts. This capacity will be particularly important in areas that provide bear habitat and offer backcountry hiking and camping experiences. Bryce Canyon National Park (BRCA), located on the edge of the Paunsaugunt Plateau in southern Utah, USA, provides important bear habitat and offers visitors 12 backcountry campsites. To effectively manage these areas to minimize human–bear conflicts, park managers will need better information about black bear use of these campsites and other …


New Associate Editors, Dwayne Elmore, David K. Dahlgren Jan 2019

New Associate Editors, Dwayne Elmore, David K. Dahlgren

Human–Wildlife Interactions

New associate editors are Dwayne Elmore and David Dahlgren.

Dwayne Elmore is a professor, wildlife extension specialist, and Bollenbach Chair in wildlife biology in the Department of Natural Resource Ecology and Management at Oklahoma State University. Specific areas of interest include wildlife habitat relationships, Galliform ecology and management, and thermal ecology. Current research projects are focused on how management and human activity affect various species of grouse and quail. He works with stakeholder groups including private landowners, NGOs, U.S. Department of Agriculture, U.S. Department of the Interior, and multiple state wildlife agencies to provide technical assistance on land management issues. …


Managing Cougars In North America: Revisions Underway, Jonathan A. Jenks Jan 2019

Managing Cougars In North America: Revisions Underway, Jonathan A. Jenks

Human–Wildlife Interactions

In 2011, the Jack H. Berryman Institute, in cooperation with the Western Association of Fish and Wildlife Agencies Cougar Working Group, published “Managing Cougars of North America” (available through www.berrymaninstitute.org or Amazon.com). Over 5,000 copies of the book were distributed. Because the science regarding management of cougars has dramatically grown over the last decade, the partners are again collaborating on a revision of the 2011 book. Currently, the chapters are undergoing a peer-review process through Human–Wildlife Interactions. Jonathan A. Jenks, South Dakota State University, is serving as the editor-in-chief for the peer-review process and will be the editor for the …


Comparing Live-Capture Methods For Nutria: Single- Versus Multiple-Capture Cage Traps, Trevor R. Sheffels, Jacoby Carter, Mark D. Sytsma, Jimmy D. Taylor Jan 2019

Comparing Live-Capture Methods For Nutria: Single- Versus Multiple-Capture Cage Traps, Trevor R. Sheffels, Jacoby Carter, Mark D. Sytsma, Jimmy D. Taylor

Human–Wildlife Interactions

Herbivory and burrowing by nutria (Myocastor coypus) cause substantial ecological and economic damage. Trapping is a common, effective practice for reducing nutria damage; however, trapping approaches must continually be adapted to keep pace with evolving animal welfare and ethical issues and to more effectively target pest species of interest. Our objective was to evaluate the efficacy of 2 nonlethal trap types for nutria: single-capture (SCT) and multi-capture (MCT) cage traps. We established 3 MCTs and 3 SCTs at each of 7 sites on a 10,500-ha mixed-use island located 15 km northwest of Portland, Oregon, USA. We pre-baited using …


Comparison Of Conservation Policy Benefits For An Umbrella And Related Sagebrush-Obligate Species, Jonathan B. Dinkins, Jeffrey L. Beck Jan 2019

Comparison Of Conservation Policy Benefits For An Umbrella And Related Sagebrush-Obligate Species, Jonathan B. Dinkins, Jeffrey L. Beck

Human–Wildlife Interactions

Many conservation strategies promote the potential of multiple species benefitting from protection of large areas necessary for the continued viability of 1 species. One prominent strategy in western North America is Wyoming’s Sage-grouse Core Area Policy, which was designed to conserve greater sage-grouse (Centrocercus urophasianus; hereafter, sage-grouse) breeding habitat, but may also serve as an umbrella to conserve other sagebrush (Artemisia spp.)-obligate wildlife, including songbirds. Sagebrush-obligate songbirds and sage-grouse have undergone population declines throughout the western United States attributed to similar habitat issues. We compared trends of sagebrush-obligate songbirds from the Breeding Bird Survey and sage-grouse lek …


Join The Email List Jan 2019

Join The Email List

Human–Wildlife Interactions

How to join the email list for HWI. Be the first to know about our newest publications.


Support The Mission Of The Jack H. Berryman Institute Jan 2019

Support The Mission Of The Jack H. Berryman Institute

Human–Wildlife Interactions

How you can support the mission of the Jack H. Berryman Institute, and help advance the Human-Wildlife Interactions journal.


Moral Ecology, Disabilities, And Human Agency, Kevin Timpe Jan 2019

Moral Ecology, Disabilities, And Human Agency, Kevin Timpe

University Faculty Publications and Creative Works

This paper argues that human agency is not simply a function of intrinsic properties about the agent, but that agency instead depends on the ecology that the agent is in. In particular, the paper examines ways that disabilities affect agency and shows how, by paying deliberate attention to structuring the social environment around people with disabilities, we can mitigate some of the agential impact of those disabilities. The paper then argues that the impact of one’s social environment on agency isn’t restricted only to those agents that have disabilities, but also characterizes all human agency. All of our agency is …


Separated By The Child Welfare System: The Journey Of One Set Of Fraternal Twins, Jocelyne Coan Bond Jan 2019

Separated By The Child Welfare System: The Journey Of One Set Of Fraternal Twins, Jocelyne Coan Bond

Walden Dissertations and Doctoral Studies

This study explored the separation of twins in foster care and examined how their lived experiences relate to their interpersonal relationships as adults. Many researchers have studied the long-term impact of nontwin sibling separation in foster care, but little is known about the separation of twins, leaving a significant gap in existing literature. The purpose of this study was to examine the lived experiences twins who were separated in foster care as relates to their interpersonal relationships during adulthood. A qualitative, narrative approach was used to gather the lived experiences of one set of twins. The research questions examined how …


Screening Sexual Assault Evidence With Low Concentrations Of Male Dna Utilizing The Rapidhit 200 And Paradna Intelligence Test, Taylor L. Koepfler Jan 2019

Screening Sexual Assault Evidence With Low Concentrations Of Male Dna Utilizing The Rapidhit 200 And Paradna Intelligence Test, Taylor L. Koepfler

Graduate Theses, Dissertations, and Problem Reports (ETD)

Over the last several years, crime laboratories have largely focused on the sexual assault kit (SAK) backlog, where they are often confronted with many low-quality samples. The lack of available screening techniques has prevented analysts from gaining insight into the disposition of the sample earlier on in the testing process; requiring analysts to rely on visual observations and little background information. Consequently, resulting in the hindrance of probative STR profiles while expending a large amount of time and resources to gain this result. In recent years, crime laboratories have explored a male screening technique, recommended by SWGDAM, to combat this …


Detecting Balsam Woolly Adelgid Infestations Using Tree Rings, Morgan Lane Leef Jan 2019

Detecting Balsam Woolly Adelgid Infestations Using Tree Rings, Morgan Lane Leef

Graduate Theses, Dissertations, and Problem Reports (ETD)

Balsam woolly adelgid (BWA), Adelges piceae(Ratzeburg), is a sap-sucking, exotic invasive insect that arrived in North America from central Europe around 1900. Since then, its range has expanded from New Brunswick, Canada to the southern Appalachian Mountains. It is a threat to all North American true-fir species, but populations can be controlled by cold continental winters. Adelgid feeding leaves noticeable traces on the wood tissue (“rotholz”) and causes a temporary positive radial growth response among affected trees. The purpose of this research was to determine dates of initial outbreaks, balsam fir radial growth change during outbreaks, and the relationship …


Evaluating The Potential Of Methyl Jasmonate Application As An Agricultural Practice On Phytochemicals In Brassica Vegetables: Sensory Quality, Cooking, And Cost-Benefit Analysis, Yu-Chun Chiu Jan 2019

Evaluating The Potential Of Methyl Jasmonate Application As An Agricultural Practice On Phytochemicals In Brassica Vegetables: Sensory Quality, Cooking, And Cost-Benefit Analysis, Yu-Chun Chiu

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the United States, Brassica vegetables, including broccoli (Brassica oleracea var. italica) and kale (Brassica oleracea var. acephala or Brassicae napus var. pabularia), are widely consumed and are easily accessible in farmer’s market or grocery stores with increasing interest of their health-promoting properties. For example, the consumption of broccoli has been associated with anti-cancer activity in in vitro and in vivo trails due to the high content of phytochemicals, minerals, vitamins, and fibers. Application of methyl jasmonate (MeJA) has been reported to enhance the potential health-promoting compounds in Brassica vegetables, glucosinolates (GS), especially indolyl GS neoglucobrassicin …


The Impact Of Post Translational Modification On The Aggregation Of The Ss-Amyloid Peptide In The Presence Or Absence Of Lipids, Albert Walton Pilkington Iv Jan 2019

The Impact Of Post Translational Modification On The Aggregation Of The Ss-Amyloid Peptide In The Presence Or Absence Of Lipids, Albert Walton Pilkington Iv

Graduate Theses, Dissertations, and Problem Reports (ETD)

Alzheimer’s disease (AD) is a neurodegenerative condition afflicting 5.7 million Americans with no effective treatments. The pathology of AD is described by the formation of neurotoxic oligomers formed by the self-assembly of amyloid-β (Aβ). The affinity of oligomers for cellular membranes disrupts calcium homeostasis and is believed to be the underlying cause of neurotoxicity; however, due to the metastability of oligomers, it has been difficult to understand their role in membrane interactions and self-assembly. Here we utilize post translational modifications (PTM) to understand the role of specific amino acids on Aβ40-membrane interactions and self-assembly. We employ ThT, AFM, …


Minimalistic Supramolecular Proteoglycan Mimics By Co-Assembly Of Aromatic Peptide And Carbohydrate Amphiphiles, Alexandra Brito, Yousef M. Abul-Haija, Diana Soares De Costa, Ramon Novoa-Carballal, Rui L. Reis, Rein V. Ulijn, Ricardo A. Pires, Iva Pashkuleva Jan 2019

Minimalistic Supramolecular Proteoglycan Mimics By Co-Assembly Of Aromatic Peptide And Carbohydrate Amphiphiles, Alexandra Brito, Yousef M. Abul-Haija, Diana Soares De Costa, Ramon Novoa-Carballal, Rui L. Reis, Rein V. Ulijn, Ricardo A. Pires, Iva Pashkuleva

Advanced Science Research Center

We report the co-assembly of aromatic carbohydrate and dipeptide amphiphiles under physiological conditions as a strategy to generate minimalistic proteoglycan mimics. The resulting nanofibers present a structural, fluorenylmethoxycarbonyl-diphenylalanine (Fmoc-FF) core and a functional carbohydrate (Fmoc-glucosamine-6-sulfate or -phosphate) shell. The size, degree of bundling and mechanical properties of the assembled structures depend on the chemical nature of the carbohydrate amphiphile used. In cell culture medium, these nanofibers can further organize into supramolecular hydrogels. We demonstrate that, similar to proteoglycans, the assembled gels prolong the stability of growth factors and preserve the viability of cultured cells. Our results demonstrate that this approach …


The Diversity And Evolution Of Pollination Systems In Large Plant Clades: Apocynaceae As A Case Study, Jeff Ollerton, Sigrid Liede-Schumann, Mary E. Endress, Ulrich Meve, André Rodrigo Rech, Adam Shuttleworth, Héctor A. Keller, Mark Fishbein, Leonardo O. Alvarado-Cárdenas, Felipe W. Amorim, Peter Bernhardt, Ferhat Celep, Yolanda Chirango, Fidel Chiriboga-Arroyo, Laure Civeyrel, Andrea Cocucci, Louise Cranmer, Suzanne Koptur, Gretchen Ionta Jan 2019

The Diversity And Evolution Of Pollination Systems In Large Plant Clades: Apocynaceae As A Case Study, Jeff Ollerton, Sigrid Liede-Schumann, Mary E. Endress, Ulrich Meve, André Rodrigo Rech, Adam Shuttleworth, Héctor A. Keller, Mark Fishbein, Leonardo O. Alvarado-Cárdenas, Felipe W. Amorim, Peter Bernhardt, Ferhat Celep, Yolanda Chirango, Fidel Chiriboga-Arroyo, Laure Civeyrel, Andrea Cocucci, Louise Cranmer, Suzanne Koptur, Gretchen Ionta

Faculty and Staff Works

Background and Aims: Large clades of angiosperms are often characterized by diverse interactions with pollinators, but how these pollination systems are structured phylogenetically and biogeographically is still uncertain for most families. Apocynaceae is a clade of >5300 species with a worldwide distribution. A database representing >10 % of species in the family was used to explore the diversity of pollinators and evolutionary shifts in pollination systems across major clades and regions. Methods: The database was compiled from published and unpublished reports. Plants were categorized into broad pollination systems and then subdivided to include bimodal systems. These were mapped against the …


Revising Society Must Be Defended By Michel Foucault, Sam Holder Jan 2019

Revising Society Must Be Defended By Michel Foucault, Sam Holder

UC Law Journal of Race and Economic Justice

No abstract provided.


Differences In Falls And Recovery From A Slip Based On An Individual’S Lower Extremity Corrective Response, Samuel J. Wilson, Paul T. Donahue, Charles C. Williams, Christopher M. Hill, Jeffrey D. Simpson, Dwight E. Waddell, Jeremy P. Loenneke, Harish Chander, Chip Wade, John C. Garner Jan 2019

Differences In Falls And Recovery From A Slip Based On An Individual’S Lower Extremity Corrective Response, Samuel J. Wilson, Paul T. Donahue, Charles C. Williams, Christopher M. Hill, Jeffrey D. Simpson, Dwight E. Waddell, Jeremy P. Loenneke, Harish Chander, Chip Wade, John C. Garner

Faculty and Student Publications

Copyright (c) the author(s). This is an open access article under CC BY license (https://creativecommons.org/licenses/by/4.0/) Background: Slips and falls account for high rates of injury and mortality in multiple populations. The corrective responses during the slip perturbation have been well documented. However, when a fall results from a slip, it is unclear which of these responses were inadequate. Objective: The purpose of this study was to examine differences in lower extremity corrective responses of the slip recovery response between individuals who fall and those who recover. Methodology: Sixty-four participants completed this study (32 males & 32 females). Participant’s gait kinematics …


Biotic And Abiotic Associations With Westslope Cutthroat Trout (Oncorhynchus Clarkii Lewisi) In The North Fork Flathead River Basin In Northwestern Montana, Usa And Southeastern British Columbia, Can Under Current And Future Climate Scenarios., Kadie B. Heinle, Lisa Eby, Clint Muhlfeld, Vincent D'Angelo, Amber Steed, Andrew Whiteley, Mark Hebblewhite Jan 2019

Biotic And Abiotic Associations With Westslope Cutthroat Trout (Oncorhynchus Clarkii Lewisi) In The North Fork Flathead River Basin In Northwestern Montana, Usa And Southeastern British Columbia, Can Under Current And Future Climate Scenarios., Kadie B. Heinle, Lisa Eby, Clint Muhlfeld, Vincent D'Angelo, Amber Steed, Andrew Whiteley, Mark Hebblewhite

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Westslope Cutthroat Trout (Oncorhynchus clarkii lewisi; WCT) populations are declining across much of their native range due to threats such as habitat degradation, competition with non-native species, and climate change. Understanding how habitat characteristics impact distributions of nonhybridized WCT populations throughout a relatively pristine core conservation area is needed to inform management and conservation efforts. We investigated whether abiotic (e.g., gradient) and biotic (i.e., Bull Trout – Salvelinus confluentus) variables predicted WCT presence and predicted how future stream temperature projections for the area might be expected to alter distributions. We compared logistic regression models of WCT presence …


Deep Learning Using Convolutional Lstm Estimates Biological Age From Physical Activity, Syed Ashiqur Rahman, Donald A. Adjeroh Jan 2019

Deep Learning Using Convolutional Lstm Estimates Biological Age From Physical Activity, Syed Ashiqur Rahman, Donald A. Adjeroh

Faculty & Staff Scholarship

Human age estimation is an important and difcult challenge. Diferent biomarkers and numerous approaches have been studied for biological age estimation, each with its advantages and limitations. In this work, we investigate whether physical activity can be exploited for biological age estimation for adult humans. We introduce an approach based on deep convolutional long short term memory (ConvLSTM) to predict biological age, using human physical activity as recorded by a wearable device. We also demonstrate fve deep biological age estimation models including the proposed approach and compare their performance on the NHANES physical activity dataset. Results on mortality hazard analysis …


Dark Sky Tourism: Economic Impacts On The Colorado Plateau Economy, Usa, David M. Mitchell, Terrel A. Gallaway Jan 2019

Dark Sky Tourism: Economic Impacts On The Colorado Plateau Economy, Usa, David M. Mitchell, Terrel A. Gallaway

College of Humanities and Public Affairs

Purpose - This paper aims to examine the economic impact from dark-sky tourism in national parks in the USA on the Colorado Plateau. The Colorado Plateau is a region encompassing parts of Arizona, Colorado, New Mexico and Utah that is known for its dark, star-filled night skies. Tourists in national parks are increasingly interested in observing this natural recreational amenity – especially considering that it is an ecological amenity that is quickly disappearing from the planet. Using a 10-year forecast of visitors to the national parks and using standard input-output modeling, it is observed that, for the first time anywhere, …


Doc 2019-06 Proposal For New Bachelor Of Science In Health Science Degree And Consolidation Of Selected Majors Within The Department Of Health And Sport Science, University Of Dayton. School Of Education And Health Sciences Jan 2019

Doc 2019-06 Proposal For New Bachelor Of Science In Health Science Degree And Consolidation Of Selected Majors Within The Department Of Health And Sport Science, University Of Dayton. School Of Education And Health Sciences

Senate Documents

Legislative Authority


Rationale for Program:

We propose to establish a Bachelor of Science in Health Science (BSHS) degree in the School of Education and Health Science (SEHS) and Department of Health and Sport Science (HSS). Within this new degree, we propose:

● The creation of a major in Health Science, with multiple concentrations that correspond to our current offerings.
● The transfer of the current baccalaureate degree program in Dietetics to this degree to better align the major with the degree earned


Neonatal Pain Detection In Videos Using The Icopevid Dataset And An Ensemble Of Descriptors Extracted From Gaussian Of Local Descriptors, Sheryl Brahnam, Loris Nanni, Shannon Mcmurtrey, Alessandra Lumini, Rick Brattin, Melinda Slack, Tonya B. Barrier Jan 2019

Neonatal Pain Detection In Videos Using The Icopevid Dataset And An Ensemble Of Descriptors Extracted From Gaussian Of Local Descriptors, Sheryl Brahnam, Loris Nanni, Shannon Mcmurtrey, Alessandra Lumini, Rick Brattin, Melinda Slack, Tonya B. Barrier

College of Business

Diagnosing pain in neonates is difficult but critical. Although approximately thirty manual pain instruments have been developed for neonatal pain diagnosis, most are complex, multifactorial, and geared toward research. The goals of this work are twofold: 1) to develop a new video dataset for automatic neonatal pain detection called iCOPEvid (infant Classification Of Pain Expressions videos), and 2) to present a classification system that sets a challenging comparison performance on this dataset. The iCOPEvid dataset contains 234 videos of 49 neonates experiencing a set of noxious stimuli, a period of rest, and an acute pain stimulus. From these videos 20 …


Rethinking The Dark Side: Macdonald’S Subversive Challenges To “Enlightened” Theories Of Social Darwinism, Kerry Dearborn Jan 2019

Rethinking The Dark Side: Macdonald’S Subversive Challenges To “Enlightened” Theories Of Social Darwinism, Kerry Dearborn

North Wind: A Journal of George MacDonald Studies

No abstract provided.


The Philosopher's Journey: A Chapter In Kindness And Animals, Vaughn E. Sayers Jan 2019

The Philosopher's Journey: A Chapter In Kindness And Animals, Vaughn E. Sayers

UNF Undergraduate Capstone Projects and Honors Theses

We each are presented with a choice; do we remain in the cave of ignorance or embark on the philosopher’s journey. Your choice will determine the way in which you interpret this paper. However, I will confidently make the assumption that you, like myself, desire to embrace an existence guided by the light of wisdom. This thesis is one of many chapters in the philosopher’s journey, dealing with animals and (cutting through the jargon) kindness. I have found that a lot of scholarship on animal ethics acknowledges a truth, but does not acknowledge that the application of such a truth …


Preparation Of Epoxidized Sunflower Oil Metal Soap Derivatives And Their Use As Heat Stabilizers For Polyvinyl Chloride, Ouassila Chelil, Naima Belhaneche-Bensemra, Daniel Lopez Garcia, Marta Fernandez-Garcia, Mohamed Tahar Benaniba Jan 2019

Preparation Of Epoxidized Sunflower Oil Metal Soap Derivatives And Their Use As Heat Stabilizers For Polyvinyl Chloride, Ouassila Chelil, Naima Belhaneche-Bensemra, Daniel Lopez Garcia, Marta Fernandez-Garcia, Mohamed Tahar Benaniba

Turkish Journal of Chemistry

The aim of this work was to prepare metal soaps of epoxidized sunflower oil (ESO) and use them as thermal stabilizers for polyvinyl chloride (PVC). For that purpose, commercial sunflower oil was first epoxidized and then used to prepare (Ba, Zn, Pb, and Cd) metal soap derivatives, which were characterized by Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The prepared metal soaps derivatives of ESO were used as thermal stabilizers for plasticized PVC. Discoloration, residual thermal stability at 200 $^{\circ}$C , and rheological properties of PVC samples were tested. The structural modifications were investigated …


From Sensorimotor Dependencies To Perceptual Practices: Making Enactivism Social, Alejandro Arango Jan 2019

From Sensorimotor Dependencies To Perceptual Practices: Making Enactivism Social, Alejandro Arango

Philosophy Faculty Scholarship

Proponents of enactivism should be interested in exploring what notion of action best captures the type of action–perception link that the view proposes, such that it covers all the aspects in which our doings constitute and are constituted by our perceiving. This article proposes and defends the thesis that the notion of sensorimotor dependencies is insufficient to account for the reality of human perception and that the central enactive notion should be that of perceptual practices. Sensorimotor enactivism is insufficient because it has no traction on socially dependent perceptions (SDPs), which are essential to the role and significance of …


Wrinkled Surface On Helical Cell Wall Thickening Of Vessel Elements In Flower Style, Ming Xing, Jian You, Xia Chen Jan 2019

Wrinkled Surface On Helical Cell Wall Thickening Of Vessel Elements In Flower Style, Ming Xing, Jian You, Xia Chen

Turkish Journal of Botany

In the present study, wrinkled surfaces were discovered on the cell wall thickenings of helical vessels in the lilac style for the first time. The structure of the wrinkles was formed by cellulose microfibrils, with convex ridges composed of crystalline cellulose and concave grooves composed of amorphous cellulose. The cellulose microfibrils were oriented with the helical cell wall thickenings. The wrinkle morphology was due to the aligned crystalline region of the microfibrils. The wrinkle structure in the flower style might be related to the faster growth rate of style tissues during helix cell wall thickening development. Discovery of the wrinkled …


The Impact Of Household Biocides And Antibiotics On Aquatic Microbial Community Composition, Abdulaziz Saud M Alrashdi Jan 2019

The Impact Of Household Biocides And Antibiotics On Aquatic Microbial Community Composition, Abdulaziz Saud M Alrashdi

Dissertations, Master's Theses and Master's Reports

Triclosan (TCS) is antimicrobial agent that is used in a lot of consumer products, including toothpaste, liquid and bar soap, and cosmetics. TCS has been found in many lakes and rivers in the United States. However, The Food and Drug Administration (FDA) banned TCS recently and it will no longer be used in household products. Despite the recent ban, TCS is known to persist in the environment and may have long-term impacts. We conducted an experiment on using fresh water from three locations Houghton, Green Bay and the Huron Mountains. Our goals in the study is to assess the impact …