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Hearing On The Fly: The Effects Of Wing Position On Noctuid Moth Hearing, Shira D. Gordon, Elizabeth Klenschi, James F. C. Windmill

Dartmouth Scholarship

The ear of the noctuid moth has only two auditory neurons, A1 and A2, which function in detecting predatory bats. However, the noctuid's ears are located on the thorax behind the wings. Therefore, as these moths need to hear during flight, it was hypothesized that wing position may affect their hearing. The wing was fixed in three different positions: up, flat and down. An additional subset of animals was measured with freely moving wings. In order to negate any possible acoustic shadowing or diffractive effects, all wings were snipped, leaving the proximal-most portion and the wing hinge intact. Results revealed …

Effect Of Increased Salinity Exposure On Photosynthetic Indicators And Water Status Of Bald Cypress (Taxodium Distichum) Seedlings, Sean A. Taylor, William K. Smith

RURALS: Review of Undergraduate Research in Agricultural and Life Sciences

The effects of climate change could severely impact coastal ecosystems, in particular the exposure of endemic wetland plants to increased and highly variable salinity levels. Bald cypress (Taxodium distichum) is a common tree species found along the southeastern Atlantic coast, and is considered a keystone and foundational species in freshwater forested wetlands. The objective of the present study was to observe the ecophysiological response of Bald cypress to the type of salinity exposure that occurs during storm over-wash events. More specifically, our goal was to determine how increased salinity could alter basic ecophysiological processes such as photosynthesis and …

Edgar Lehr, March 10, 2017, Charlie Schlenker

Interviews for WGLT

Charlie Schlenker from WGLT interviews IWU Professor of Biology Edgar Lehr. Lehr and his research partner Rudolf von May discovered a new species of frog, formally described as Pristimantis attenboroughi, during an expedition in the Peruvian Andes.

Photographs of Pristimantis attenboroughi can be found at the links below.

Research Opportunities Prepared Gwu Alumna For Job In Microbiology, Office Of University Communications

Gardner-Webb NewsCenter Archive

“Ever since I can remember, science has been my calling,” asserted Keely Ford ’14 of Morganton, N.C., who came to Gardner-Webb University to develop her skills in scientific research. “I primarily focused on wild life biology and ecology,” she added. “The ocean was my second home. From around 10 years old, I have been studying and learning more and more about marine life.”

The Possession Level Of The Specialized Professional Standards In Saudi Biology Teachers From Their Supervisors' Point Of Views, Saeed Alshamrani, Fahad A. Alharbi

Journal of Educational and Psychological Studies

This paper aimed to identify how biology male and female teachers possessprofessional biology standards from their supervisors' point of View. The population and sample included all male and female supervisors in all educational districts in Saudi Arabia (N=262). Only 208 of them responded; and 32 of this number were excluded since they did not provide their specialization or they were not specialized in biology. The data was collected through a questionnaire constructing based on the standards and indicators included in the Professional Biology Standards for Biology teachers developed by the National Center for Assessment in Higher Education (Qias, 1434). The …

First Record Of Nestling Relocation By Adult Gyrfalcons (Falco Rusticolus) Following Nest Collapse, Bryce W. Robinson, Neil Paprocki, David L. Anderson, Marc J. Bechard

Raptor Research Center Publications and Presentations

Nest collapse has been documented in many bird species, with little discussion of adult behavior following collapse. We present evidence of a partial collapse of a Gyrfalcon (Falco rusticolus) nest during the nestling period and the subsequent adult response. A nest camera captured the nest collapse and showed one adult Gyrfalcon holding a live nestling in its beak before leaving the nest. Later, we found the surviving nestling alive in an alternate nest 5 m from the original nest, presumably transported there by the adult. We believe this is the first report of an adult Gyrfalcon moving a …

Newsroom, Georgia Southern University

Newsroom (2006-2023)

• CHHS Faculty, Student, Alumni concussion research published
• Reefs and Rivers: The Altamaha's connection to us

Sequencing Our Genomes: From Ancestry To Disease Cmb 260g, Michael Cerbo

Library Impact Statements

No abstract provided.

Biology And Society Bio 396, Michael Cerbo

Library Impact Statements

No abstract provided.

Information Age: From Politics To Medicine Bio 181g, Michael Cerbo

Library Impact Statements

No abstract provided.

Fourth-Year Medical Student Values Gwu Professors Who ‘Invested In His Life’, Office Of University Communications

Gardner-Webb NewsCenter Archive

Tyler Beckler (’13), a native of Hickory, N.C., described himself as an idealistic 18-year-old when he arrived on campus at Gardner-Webb University. “I wanted to make people’s lives better—to change the world—but I had no idea how to do that,” he recalled. Before the end of the first semester, though, his future started to take shape.

The Association Of Serum Levels Of Brain-Derived Neurotrophic Factor With The Occurrence Of And Recovery From Delirium In Older Medical Inpatients, John Williams, Karen Finn, Vincent Melvin, David Meagher, Geraldine Mccarthy, Dimitrios Adamis

Department of Biological Sciences Publications

Limited studies of the association between BDNF levels and delirium have given inconclusive results. This prospective, longitudinal study examined the relationship between BDNF levels and the occurrence of and recovery from delirium. Participants were assessed twice weekly using MoCA, DRS-R98, and APACHE II scales. BDNF levels were estimated using an ELISA method. Delirium was defined with DRS-R98 (score > 16) and recovery from delirium as ≥2 consecutive assessments without delirium prior to discharge. We identified no difference in BDNF levels between those with and without delirium. Excluding those who never developed delirium (), we examined the association of BDNF levels and …

Manifestly Haraway By Donna J. Haraway, Andrew Gordon Jeffrey

The Goose

Review of Donna J. Haraway's Manifestly Haraway.

Introduction To Cell And Molecular Biology Cmb 102, Michael Cerbo

Library Impact Statements

No abstract provided.

Experimental Approaches In Molecular And Cell Biology Cmb 460, Michael Cerbo

Library Impact Statements

No abstract provided.

A Model Of The Use Of Evolutionary Trees (Muet) To Inform K-14 Biology Education, Yi Kong, Ankita Thawani, Trevor R. Anderson, Nancy Pelaez

PIBERG Publications

Evolutionary trees are powerful tools used in modern biological research, and also commonly used in textbooks and classroom instruction. Studies have shown that K-14 students have difficulties interpreting evolutionary trees. To improve student learning about this topic, it is essential to teach them how to understand and use trees like professional biologists. Unfortunately, few currently used teaching frameworks for evolution instruction are designed for this purpose. In this study we developed the Model of the Use of Evolutionary Trees (MUET), a conceptual model that characterizes how evolutionary trees were used by professional biologists as represented in their research publications. The …

Bioethics In The Work Of Ernest Everett Just: + Missing - Some 400 Pages, Theodore Walker

Perkins Faculty Research and Special Events

Biology + ethics = bioethics. Here we see that Howard University biologist Ernest Everett Just (born 1883, died 1941) connected biology to ethics.

According to Just, various forms of specific biology (including especially cell biology) plus “general biology” are necessary for explaining adequately the origin of ethical behaviors. Social ethical behaviors, especially mutual aid and cooperative interactions with others and the environment, are essential to evolutionary advances among living creatures, ranging from humans to cells. Accordingly, theory of ethics (moral theory) should have roots in biology.

Also, Just wrote an unpublished book-length manuscript—“some 400 typed pages” (Just 1940)—on seeking the …

Origins: Life, The Universe And Everything Hpr 201, Michael Cerbo

Library Impact Statements

No abstract provided.

Newsroom, Georgia Southern University

Newsroom (2006-2023)

• Biology professor feaured in American Entomologist Magazine
• Annual Southern Conference on Children arrives in January
• Flatbed Picture Planes opens at the Center for Art and Theatre
• Public Safety welcomes two new officers, first K9 Officer
• Telfair named APHA President-Elect
• Service Corp of Retired Executives chapter opens in Statesboro

Gardner-Webb University Gallery Hosts Works By Professor Emeritus, Office Of University Communications

Gardner-Webb NewsCenter Archive

Dr. Les Brown, Gardner-Webb Professor Emeritus, spent 40 years studying and teaching biology at the University. When he retired in 2005, Brown transferred his observations of nature to works on canvas, paper and in clay. His paintings, drawings and pottery will be displayed Jan. 16-Feb. 17 in the Tucker Gallery inside the Tucker Student Center on the Gardner-Webb University campus.

Cryptic Multicolored Lizards In The Polychrus Marmoratus Group (Squamata: Sauria: Polychrotidae) And The Status Of Leiolepis Auduboni Hallowell, John C. Murphy, Rick M. Lehtinen, Stevland P. Charles, Danielle Wasserman, Tom Anton, Patrick J. Brennan

All Faculty Articles

The Neotropical genus Polychrus contains seven species of arboreal lizards. The type species for the genus is the widespread Polychrus marmoratus. We compared a few populations of P. marmoratus using 16S and COI mitochondrial gene sequences (1,035 bp total) and found several lineages existing under the name Polychrus marmoratus. Working backwards, using morphology we identify Polychrus marmoratus from the Guiana Shield and resurrect the name Leiolepis auduboni Hallowell for the species present in Trinidad, Tobago, and northern Venezuela. The number of species in the genus Polychrus is raised to eight. However, we also discuss evidence for the existence …

Lifelines Winter 2017, Southern Adventist University

Lifelines - Biology Department Newsletter

The Winter 2017 issue of Lifelines contains articles on life-long learning, taskforce work at Shenandoah Valley Academy, an alumni spotlight, and a pictorial directory of the 2017 biology and allied health graduates.

Status Of Southern Garfish (Hyporhamphus Melanochir) In Cockburn Sound, Western Australia, K Smith, C Dowling, S Mountford, A Hesp, A Howard, J Brown

Fisheries Research Reports

No abstract provided.

The Effect Of Aging On The Blood Brain Barrier Permeability And Response To Fluoxetine Enantiomers, Ethar Arkan

Browse all Theses and Dissertations

We tested the effect of the fluoxetine enantiomers (S-fluoxetine and R-fluoxetine) versus Prozac (50:50 ratio of R- and S- fluoxetine enantiomers) and/or control on blood brain barrier (BBB) permeability in different brain regions in both male and female rats. The rats consumed orally the drug (5 mg/kg) or vehicle for a total of three days, then were injected with sterile Evans blue dye ip, at least 12 hours before euthanasia.. We see significant regional brain differences in BBB permeability (hippocampus has tighter BBB), significant differences based on the age of the animals (young rats show enhanced permeability in lower brain …

Dynamics And Clustering In Locust Hopper Bands, Jialun Zhang

HMC Senior Theses

In recent years, technological advances in animal tracking have renewed interests in collective animal behavior, and in particular, locust swarms. These swarms pose a major threat to agriculture in northern Africa, the Middle East, and other regions. In their early life stages, locusts move in hopper bands, which are huge aggregations traveling on the ground. Our main goal is to understand the underlying mechanisms for the emergence and organization of these bands. We construct an agent-based model that tracks individual locusts and a continuum model that tracks the evolution of locust density. Both these models are motivated by experimental observations …

Age And Sex-Specific Effect Of Caloric Restriction On Circadian Clock And Longevity-Associated Gene Expression, Arten Andreyevich Astafev

ETD Archive

The rhythms in the expression of circadian clock genes are affected by calorie restriction (CR), a dietary paradigm known to increase lifespan. In our current study, we show that circadian rhythms are influenced by sex and the effects of CR are different between males and females. In particular, we found a group of clock genes which showed a sex-dependent difference in expression, as well as in response to CR (Rev-Erb α, Ror γ and both Cryptochromes: Cry1 and Cry2 genes). Two clock genes showed no difference in expression but their response to CR showed sexual dimorphism (Ror α and Rev-Erb …

Dynamics Of Gene Networks In Cancer Research, Paul Scott

College of Graduate Studies: Theses & Dissertations

Cancer prevention treatments are being researched to see if an optimized treatment schedule would decrease the likelihood of a person being diagnosed with cancer. To do this we are looking at genes involved in the cell cycle and how they interact with one another. Through each gene expression during the life of a normal cell we get an understanding of the gene interactions and test these against those of a cancerous cell. First we construct a simplified network model of the normal gene network. Once we have this model we translate it into a transition matrix and force changes on …

Phytoplankton Plastid Proteomics: Cracking Open Diatoms To Understand Plastid Biochemistry Under Iron Limitation, Skyler J. Nunn, Phoebe Dreux Chappell, Kristofer Gomes, Anasthasia Bonderenko, Bethany D. Jenkins, Brook L. Nunn

OES Faculty Publications

Diatoms, such as Thalassiosira pseudonana, are important oceanic primary producers, as they sequester carbon dioxide (CO₂) out of the atmosphere, die, and precipitate to the ocean floor. In many areas of the world’s oceans, phytoplankton, such as diatoms, are limited in growth by the availability of iron (Fe). Fe is an essential nutrient for phytoplankton, as it is central in the electron transport chain component of photosynthesis. Through this study, we examined if Fe-limitation makes a significant difference in the proteins expressed within the chloroplast, the power source for diatoms. Here, we utilized a new plastid isolation technique specific …

Evolving Faith: Wanderings Of A Mormon Biologist, Blake T. Ostler

BYU Studies

Steven L. Peck. Evolving Faith: Wanderings of a Mormon Biologist.

Provo, Utah: Neal A. Maxwell Institute, 2015.

Biology Discipline Assessment Pslo's Spring 2017, Biology Discipline

Assessment of Student Learning Reports

No abstract provided.