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2019

Biology

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Articles 1 - 30 of 70

Full-Text Articles in Life Sciences

A Mixed-Methods Study Of Entomology Incorporation In U.S. Secondary Science Instruction, Erin M. Ingram Dec 2019

A Mixed-Methods Study Of Entomology Incorporation In U.S. Secondary Science Instruction, Erin M. Ingram

Dissertations and Student Research in Entomology

To encourage understanding and appreciation of insects, entomology education advocates have supported and encouraged K-12 teachers to integrate insects and insect-related content into formal science instruction. However, research examining how and why science teachers incorporate entomology into secondary science courses is limited.

A sequential explanatory mixed-methods research study was conducted to address this gap. The study was conducted in two phases. During the first phase, quantitative survey research was conducted with a representative sample of 254 U.S. secondary life science teachers. During the subsequent qualitative phase, follow-up interviews were conducted with a purposeful sample of 18 survey participants and ...


Mammal Species Inventory Using Various Trapping Methods In Zone 4 Of Billy Barquedier National Park, Belize During Rainy Season, Mersady Redding Dec 2019

Mammal Species Inventory Using Various Trapping Methods In Zone 4 Of Billy Barquedier National Park, Belize During Rainy Season, Mersady Redding

Animal Science Undergraduate Honors Theses

Belize is a small country, but it is extremely ecologically diverse. Based on the few studies conducted in Belize, the abundance of mammals is low but diversity is high. Particular findings note the number and identity of species differed between four sites in the Maya Mountains of Belize, indicating that a data set from a single site is not representative of the Neotropical region. Insufficient data is available to estimate current species richness of many areas in Belize, including Billy Barquedier National Park (BBNP). The objective of this study was to explore trapping and documentation methods of terrestrial mammals in ...


Influenza: The Changes To The Flu Season, Kara Fonseca Dec 2019

Influenza: The Changes To The Flu Season, Kara Fonseca

Honors Theses

In this paper, the changes in flu season were examined. Additionally, reasons for changes to the flu season were explored. Data gathered from the Influenza Research Database was used to form graphs that show the changes in influenza cases yearly from 2008-2009 flu season to the 2018-2019 flu season in Massachusetts. A background for H1N1 and H3N2 including the difference between neuraminidase (N) and hemagglutinin (H), the excepted current timeline of flu season is provided. There are a number of factors that play a role in the changing flu season length, such as vaccination rates, effectiveness of that particular year ...


Exploring Secondary Structure In Bacteriophage Programmed Frameshift Elements, Samuel Okabayashi, Sean Mcclory Nov 2019

Exploring Secondary Structure In Bacteriophage Programmed Frameshift Elements, Samuel Okabayashi, Sean Mcclory

HON499 projects

Bacteriophages are viruses that infect bacteria and reproduce using host bacterial components. Part of the bacteriophage reproduction is assembly of the tail complex, which requires two assembly chaperone (TAC) proteins. In many phages the TAC’s are produced from a single gene through a non-canonical process called programmed translational frameshifting (PTF). The SEA-PHAGES program has produced hundreds of TAC genes that are accessible through phagesdb, a database of sequenced and annotated phage genomes. The sequences for the TAC gene were gathered from phagesdb and analyzed using ClustalOmega; a multiple sequence alignment (MSA) tool which revealed several positions where total conservation ...


Titration Of A Newtown Creek Environmental Water Sample To Determine The Amount Of Chloride Ions [Chemistry], Kevin Mark Oct 2019

Titration Of A Newtown Creek Environmental Water Sample To Determine The Amount Of Chloride Ions [Chemistry], Kevin Mark

Open Educational Resources

Main Course Learning Objectives:

The General Chemistry 1 (SCC 201) course has multiple course learning objectives, which articulate key introductory chemistry concepts that all STEM students should possess. In particular, the Newtown Creek titration experiment aligns with SCC 201 learning objectives of:

  1. Demonstrate an appreciation of the role of chemistry in various aspects of life
  2. Perform basic laboratory skills such as the proper execution of titration techniques
  3. Describe and explain the fundamental chemistry concept of solution concentration
  4. Analyze and represent experimental data in tables and graphs, interpret experimental results and write laboratory reports

In the SCC 201 laboratory, students are ...


Lifelines Fall 2019, Southern Adventist University Oct 2019

Lifelines Fall 2019, Southern Adventist University

Lifelines - Biology Department Newsletter

No abstract provided.


Artful Nature And The Legacy Of Maria Sibylla Merian, Shannon Egan Oct 2019

Artful Nature And The Legacy Of Maria Sibylla Merian, Shannon Egan

Schmucker Art Catalogs

The exhibition Artful Nature and the Legacy of Maria Sibylla Merian celebrates the skills and influences of a remarkable woman from seventeenth-century Europe. Curated by Emily Roush ’21 and Shannon Zeltmann ’21 with the guidance of Professors Kay Etheridge (Biology) and Felicia Else (Art History), Emily and Shannon selected the prints, organized them into categories, and carried out research on them, much of which was relatively obscure and would have been challenging even for graduate students.

Maria Sibylla Merian lived and worked in a time of vibrant intersections of art and science in Europe. Her images of insects and plants ...


Reading Guides For Openstax Concepts Of Biology, Kathryn Dye Oct 2019

Reading Guides For Openstax Concepts Of Biology, Kathryn Dye

Biological Sciences Ancillary Materials

This set of reading guides for OpenStax Concepts of Biology (https://openstax.org/details/books/concepts-biology) was created under a Round Thirteen Mini-Grant for Ancillary Materials Creation and Revision.

These activity-focused guides cover the following chapters of the text:

  • Chapter 1 - Introduction to Biology;
  • Chapter 2 - Chemistry of Life;
  • Chapter 4 - How Cells Obtain Energy;
  • Chapter 5 - Photosynthesis


Principles Of Biology I & Ii (Atlm), Candice Chatman, Alvin Harmon, Deon O'Bryant, Stephen Klusza Oct 2019

Principles Of Biology I & Ii (Atlm), Candice Chatman, Alvin Harmon, Deon O'Bryant, Stephen Klusza

Biological Sciences Grants Collections

This Grants Collection for Principles of Biology I & II was created under a Round Twelve ALG Textbook Transformation Grant.

Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.

Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials:

  • Linked Syllabus
  • Initial Proposal
  • Final Report


9th Annual Postdoctoral Science Symposium, University Of Texas Md Anderson Cancer Center Postdoctoral Association Sep 2019

9th Annual Postdoctoral Science Symposium, University Of Texas Md Anderson Cancer Center Postdoctoral Association

MD Anderson Cancer Center Postdoctoral Association Annual Postdoctoral Science Symposium Abstracts

The mission of the Annual Postdoctoral Science Symposium (APSS) is to provide a platform for talented postdoctoral fellows throughout the Texas Medical Center to present their work to a wider audience. The MD Anderson Postdoctoral Association convened its inaugural Annual Postdoctoral Science Symposium (APSS) on August 4, 2011.

The APSS provides a professional venue for postdoctoral scientists to develop, clarify, and refine their research as a result of formal reviews and critiques of faculty and other postdoctoral scientists. Additionally, attendees discuss current research on a broad range of subjects while promoting academic interactions and enrichment and developing new collaborations.


Trophic Upgrading And Mobilization Of Wax Esters In Microzooplankton, Keyana Roohani, Brad A. Haubrich, Kai-Lou Yue, Nigel D'Souza, Amanda Mantalbano, Tatiana Rynearson, Susanne Menden-Deuer, Christopher Reid Aug 2019

Trophic Upgrading And Mobilization Of Wax Esters In Microzooplankton, Keyana Roohani, Brad A. Haubrich, Kai-Lou Yue, Nigel D'Souza, Amanda Mantalbano, Tatiana Rynearson, Susanne Menden-Deuer, Christopher Reid

Science and Technology Faculty Journal Articles

Heterotrophic protists play pivotal roles in aquatic ecosystems by transferring matter and energy, including lipids, from primary producers to higher trophic predators. Using Oxyrrhis marina as a model organism, changes to the non-saponifiable protist lipids were investigated under satiation and starvation conditions. During active feeding on the alga Cryptomonas sp., the O. marina hexane soluble non-saponifiable fraction lipid profile reflected its food source with the observed presence of long chain mono-unsaturated fatty alcohols up to C25:1. Evidence of trophic upgrading in O. marina was observed with long chain mono-unsaturated fatty alcohol accumulation of up to C35:1. To the ...


Traffic Noise And Sexual Selection: Studies Of Anthropogenic Impact On Bird Songs And Undergraduate Student Reasoning Of Evolutionary Mechanisms, Sarah Spier Aug 2019

Traffic Noise And Sexual Selection: Studies Of Anthropogenic Impact On Bird Songs And Undergraduate Student Reasoning Of Evolutionary Mechanisms, Sarah Spier

Dissertations & Theses in Natural Resources

Humans have transformed much of the natural landscape and are continuing to do so at an accelerated rate, compromising natural areas that serve as important habitat for many species. Roads impact much of the environment as they fragment habitat and introduce traffic noise into the acoustic environment, deferentially affecting wildlife in roadside habitat. I explored how traffic noise affects the detection of birds based on whether their vocalizations were masked by traffic noise. Masked species detection was not affected by an increase in traffic noise amplitude, while there was a negative effect of traffic noise amplitude on unmasked species detection ...


Science, Physiology, And Nutrition For The Nonscientist, Judi S. Morrill Jul 2019

Science, Physiology, And Nutrition For The Nonscientist, Judi S. Morrill

Open Educational Resources

A wonderful blend of physiology, nutrition, biochemistry, genetics, biology, evolution, chemistry--what we all need to know as informed citizens. A basic knowledge of the life sciences and how our bodies work--to promote our own good health, especially as we're bombarded with misleading advertisements, soundbites, and the like. DNA fingerprinting, calorie requirements, dietary advice, genetic engineering (including gene editing with CRISPR cas9)--all in an easy-to understand book.


Darwin At The Drugstore? Testing The Biological Fitness Of Antibiotic Resistant Bacteria, Alan L. Gillen, Sarah Anderson Jul 2019

Darwin At The Drugstore? Testing The Biological Fitness Of Antibiotic Resistant Bacteria, Alan L. Gillen, Sarah Anderson

Alan L. Gillen

The issue of antibiotic resistance in bacteria is growing. For example, methicillin-resistant Staphylococcus aureus (MRSA) is a leading human pathogen. New strains of MRSA are resistant to methicillin and numerous other antibiotics, placing the patient in significant danger. Indeed, the Centers for Disease Control revealed in 2007 that the number of deaths due to MRSA exceeded that of AIDS in the United States. It is no wonder that antibiotic resistance is one of the most significant and important health care issues. The ability of bacterial pathogens to evade traditional antibiotics is faster than the drug makers’ ability to make new ...


Long-Billed Curlew Nest Site Selection And Success In The Intermountain West, Stephanie E. Coates, Benjamin W. Wright, Jay D. Carlisle Jul 2019

Long-Billed Curlew Nest Site Selection And Success In The Intermountain West, Stephanie E. Coates, Benjamin W. Wright, Jay D. Carlisle

Intermountain Bird Observatory Publications and Presentations

Grassland birds have experienced steeper population declines between 1966 and 2015 than any other bird group on the North American continent, and migratory grassland birds may face threats in all stages of their annual cycle. The grassland‐associated long‐billed curlew (Numenius americanus) is experiencing population declines in regional and local portions of their North American breeding range. The nesting period is an important portion of the annual cycle when curlews may face demographic rate limitations from a suite of threats including predators and anthropogenic disturbance. We compared nest sites to random sites within breeding territories to examine nest site ...


Study Of Blood Viscosity With Added Sodium Nitrate And Temperature Variance: A Potential Therapy To Regulate Blood Flow After Induced Hypothermia, Brianna Munnich Jul 2019

Study Of Blood Viscosity With Added Sodium Nitrate And Temperature Variance: A Potential Therapy To Regulate Blood Flow After Induced Hypothermia, Brianna Munnich

Pence-Boyce STEM Student Scholarship

The human body has natural systems for vasodilation which are fueled by nitric oxide production, but in cases of cardiac disfunction and stress nitric oxide can be inhibited. In this study, nitric oxide was studied as a mediator for the blood rush experienced from the warming after induced hypothermia. Nitric oxide (NO) was introduced through sodium nitrate, which was aimed to reduce the speed and turbulence of blood flow through interaction between NO and the active site of hemoglobin. A viscometer was used to examine the rate of blood flow, while the temperature was varied to simulate the conditions of ...


Electrostatically Localized Proton Bioenergetics: Better Understanding Membrane Potential, James Weifu Lee Jul 2019

Electrostatically Localized Proton Bioenergetics: Better Understanding Membrane Potential, James Weifu Lee

Chemistry & Biochemistry Faculty Publications

In Mitchell's chemiosmotic theory, membrane potential Δψ was given as the electric potential difference across the membrane. However, its physical origin for membrane potential Δψ was not well explained. Using the Lee proton electrostatic localization model with a newly formulated equation for protonic motive force (pmf) that takes electrostatically localized protons into account, membrane potential has now been better understood as the voltage difference contributed by the localized surface charge density ([H-+L] + nΣ i=1 [M(i+)L]) at the liquid-membrane interface as in an electrostatically localized protons/cations-membrane-anions capacitor. That is, the origin of membrane potential ...


Open Textbook Project [Poster], Sue Ann Gardner Jun 2019

Open Textbook Project [Poster], Sue Ann Gardner

Library Conference Presentations and Speeches

Details of a porject undertaken to collaboratively write and produce an open access parasitology textbook for undergraduate and graduate students. The book will be published by Zea Books at the University of Nebraska-Lincoln in 2020 and be available in English and Spanish both online and print-on-demand through lulu.com.

Co-Executive Editors: Sue Ann Gardner and Scott L. Gardner, University of nebraska-Lincoln. Copyeditor: Linnea Fredrickson, University of Nebraska-Lincoln. Spanish Translator: Yoanna Esquivel Greenwood, University of Nebraska-Lincoln. Project Coordinator: Sue Ann Gardner.

Project website: https://digitalcommons.unl.edu/parasittext/.


A Rapid Viability And Drug‑Susceptibility Assay Utilizing Mycobacteriophage As An Indicator Of Drug Susceptibilities Of Anti‑Tb Drugs Against Mycobacterium Smegmatis Mc2 155, Gillian Catherine Crowley, Jim O'Mahony, Aidan Coffey, Riona G. Sayers, Paul D. Cotter Jun 2019

A Rapid Viability And Drug‑Susceptibility Assay Utilizing Mycobacteriophage As An Indicator Of Drug Susceptibilities Of Anti‑Tb Drugs Against Mycobacterium Smegmatis Mc2 155, Gillian Catherine Crowley, Jim O'Mahony, Aidan Coffey, Riona G. Sayers, Paul D. Cotter

Dept. of Biological Sciences Publications

Background: A rapid in-house TM4 mycobacteriophage-based assay, to identify multidrug resistance against various anti-tuberculosis drugs, using the fast-growing Mycobacterium smegmatis mc2 155 in a microtiter plate format was evaluated, based on phage viability assays. Methods: A variety of parameters were optimized before the study including the minimum incubation time for the drugs, phage and M. smegmatis mc2 155 to be in contact. An increase in phage numbers over 2 h was indicative that M. smegmatis mc2 155 is resistant to the drugs under investigation, however when phage numbers remained static, M. smegmatis mc2 155 found to ...


Do Stands Of Native Trees Harbor Different Invasive Species Than Stands Of Planted Pine?, Carly Mccameron, John Mccarthy, Dr. Kevin Geedey May 2019

Do Stands Of Native Trees Harbor Different Invasive Species Than Stands Of Planted Pine?, Carly Mccameron, John Mccarthy, Dr. Kevin Geedey

Celebration of Learning

The most outstanding invasive species that can be found at Augustana’s Green Wing Environmental Laboratory are honeysuckle, buckthorn, multiflora rose, garlic mustard, autumn olive, and oriental bittersweet. These plants are not only disrupting the ecosystem at Green Wing, but they are doing it all over the country. The result of their disruption is that they have taken over entire habitats and left natural species with no way to compete for survival. To study this we used the line-point method as well as other forms of data collection to compare a non-native pine tree habitat to an area dominated by ...


Genetic Sequencing For Measuring Biodiversity In Recent And Ancient Marine Sediments, Lauren Judge May 2019

Genetic Sequencing For Measuring Biodiversity In Recent And Ancient Marine Sediments, Lauren Judge

Celebration of Learning

Taxonomic biodiversity, measured by counting the number of species present in a given area, is the most common method of capturing ecosystem biodiversity in recent and ancient environments. While this method is widely accepted, it is limited by poor preservation and identification of many individuals, making it impossible to include every species within an ecosystem and resulting in the loss of some diversity information. To address this issue, we measured the genetic biodiversity (in which species are determined based on sequencing of their DNA) of shallow marine ecosystems by extracting and sequencing the 18S ribosomal gene from bulk carbonate sediment ...


Sensory Perception, Adrian Rodriguez-Contreras May 2019

Sensory Perception, Adrian Rodriguez-Contreras

Open Educational Resources

Different types of sensory systems with their functional modalities will be presented. The biological bases for how these functions are generated and modified will then be described. As vision is the principal means of perception, we will focus in this course most on visual processing. Scientific data will be integrated into the lectures, such that students develop critical skills in analyzing data and proposing hypotheses.


Establishment Of Crispr/Cas-9 Aided Knockout Of The Zic2 Gene In The African-American Prostate Cancer Cell Line E006aa-Pr, Janelle Moore May 2019

Establishment Of Crispr/Cas-9 Aided Knockout Of The Zic2 Gene In The African-American Prostate Cancer Cell Line E006aa-Pr, Janelle Moore

Electronic Theses & Dissertations Collection for Atlanta University & Clark Atlanta University

The largest U.S. cancer health disparity exists in prostate cancer, with African American men having the highest incidence and mortality rates. The present study evaluated the effects of ZIC2 and the underlying mechanisms in the E006 parental African-American cell line that produces tumors at accelerated growth rates because of the increase of ZIC2 genes in African-American males. We analyzed the experimental research that the overexpression of ZIC2 contributes to progression of prostate cancer. E006AA cells with overexpressed or suppressed ZIC2 were analyzed to determine phenotypic differences, PCR, cell proliferation and immunoblot assays. The expression levels of ZIC2 were analyzed ...


A Review Of The Global Commercial Cephalopod Fishery, With A Focus On Apparent Expansion, Changing Environments, And Management, Corey Clark May 2019

A Review Of The Global Commercial Cephalopod Fishery, With A Focus On Apparent Expansion, Changing Environments, And Management, Corey Clark

HCNSO Student Capstones

Cephalopods are both important predators and prey in many marine environments and important fishery resources in many countries. The global fishery has expanded almost continuously from landings of 580,000 metric tonnes in 1950 to over 4 m.t. in 2007. Cephalopods are ecological opportunists with highly plastic biological characteristics and varied population dynamics. Nearly all commercially harvested species are short-lived and can reproduce quickly, enabling them to evolve more rapidly under high selection pressure relative to many fish competitors and predators. As a result, they may have the biological means to be successful under conditions of long-term global climate ...


Study Of Alpha Mangostin As A Chemoprotective Agent For Breast Cancer Via Activation Of The P53 Pathway, Vanessa Van Oost May 2019

Study Of Alpha Mangostin As A Chemoprotective Agent For Breast Cancer Via Activation Of The P53 Pathway, Vanessa Van Oost

Honors Program Projects

Breast carcinoma is the most frequently diagnosed cancer among women and causes over 400,000 deaths each year worldwide. Current treatments such as chemotherapy are not selective for cancerous tissues but are destructive to normal tissues as well. This causes a range of side effects including pain, nausea, hair loss, weakness, and more. Inactivation of p53 is a very common mutation within human cancer cells. The ability to activate the p53 pathway which protects cells from tumor formation is lost in 50% of cancers. Due to the prevalence of this mutation, p53 is a uniquely valuable target for applied research ...


Isolation And Characterization Mutants Defective In Cilia Regeneration In Chlamydomonas Reindhartii, Ellen Acheampong May 2019

Isolation And Characterization Mutants Defective In Cilia Regeneration In Chlamydomonas Reindhartii, Ellen Acheampong

Honors Theses

Cilia and flagella are identical brush-like organelles found on the surfaces of eukaryotic cells and are involved in motility, sensing, and signaling. Defects in cilia assembly or function lead to polycystic kidney disease, congenital heart disease, Bardet Biedl syndrome, and other emerging ciliopathies. In Chlamydomonas reinhardtii, one of the most well-studied flagella model organisms, regeneration of flagella to normal length and normal function occurs within 90 minutes of acid-shock deflagellation. During this process hundreds of genes are induced. Much is left to be determined about how cells regulate expression of these genes: How do cells detect the presence or absence ...


Acute Lymphoblastic Leukemia From The Perspective Of Immune Cells: A Book To Help Children Understand Cancer, Irune Aparicio May 2019

Acute Lymphoblastic Leukemia From The Perspective Of Immune Cells: A Book To Help Children Understand Cancer, Irune Aparicio

Honors Theses

Acute Lymphoblastic Leukemia (ALL) is the most common type of childhood cancer. According to the American Cancer Society 3 out of 4 childhood leukemia cases are ALL, and the main treatment for these patients is chemotherapy. There are various tools that doctors and nurses use in order to effectively communicate with these young patients and their families about what this type of leukemia is, and what chemotherapy will do in order to help. There are children’s books on cancer, but they are mostly coping aids or answer general questions. My children’s e-book however invites the young reader (6 ...


Understanding The Human Immune System: The Power That Influences The Endurance Of The Species, Jordan Cierpich May 2019

Understanding The Human Immune System: The Power That Influences The Endurance Of The Species, Jordan Cierpich

Honors Theses

Evolution has influenced the human immune system and allowed our species to endure amidst numerous plagues, but also to coexist with ubiquitous microbial symbionts on the human animal. Estimates of the ratio of human cells to resident microbial cells in the human body range from 1:1 to 1:10, and within the numerous bacterial species that exist, only a small percentage are pathogenic. The work of the 2018 Nobel Prize winners in Physiology or Medicine allowed for the production of new tools to understand how to stimulate the immune system to fight cancerous cells; human cells gone ‘rogue’, through ...


Dueling Decapods: Observing Aggression Levels In One-On-One Interactions Between The European Green Crab Carcinus Maenus And The Asian Shore Crab Hemigrapsus Sanguineus In The Gulf Of Maine, Caitlyn Wilkins May 2019

Dueling Decapods: Observing Aggression Levels In One-On-One Interactions Between The European Green Crab Carcinus Maenus And The Asian Shore Crab Hemigrapsus Sanguineus In The Gulf Of Maine, Caitlyn Wilkins

Honors Theses

European green crabs Carcinus maenus have invaded the shores of the Gulf of Maine since the early 1800’s, devastating native crab populations in the sandy shores and rocky intertidal zones. In the early 2000’s the Asian Shore Crab Hemigrapsus sanguineus was introduced to the Gulf of Maine, and has since dominated rocky intertidal zones, overtaking the green crab populations in those areas. A study performed at the Cat Cove Marine Lab at Salem State University looked into the level of aggressive behavior between these crab species. An individual of each species was introduced into a round glass arena ...


Effects Of Low Ph Water On European Green Crabs (Carcinus Maenas): An Assessment Of Survival And Post-Ecdysis Cuticle Properties, Santiago Pineda May 2019

Effects Of Low Ph Water On European Green Crabs (Carcinus Maenas): An Assessment Of Survival And Post-Ecdysis Cuticle Properties, Santiago Pineda

Honors Theses

Excess of carbon emissions drives not only global warming but also ocean acidification (OA). In addition to that, it has been established that OA negatively affects a variety of organisms that depend on calcium carbonate to build their shells. However, the effects of low pH water on crustaceans is not well understood. These marine organisms do not rely exclusively on calcium carbonate to build their carapaces, which are also composed of a wide range of organic and inorganic compounds. In this study, the effects of low pH water on the carapaces of European green crabs (Carcinus maenas) as well as ...