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Articles 931 - 960 of 1224
Full-Text Articles in Biology
How Small Is Small?, Allison Marsh
Why Do We Collect?, Allison Marsh
Why Do We Collect?, Allison Marsh
Section 2: Imaging the Microscopic
No abstract provided.
Spotlight On Usc: A.C. Moore Herbarium, Allison Marsh
Spotlight On Usc: A.C. Moore Herbarium, Allison Marsh
Section 2: Imaging the Microscopic
No abstract provided.
Imaging And Aesthetics, Allison Marsh
Imaging And Aesthetics, Allison Marsh
Section 2: Imaging the Microscopic
No abstract provided.
Observing The Minuscule, Allison Marsh
Observing The Minuscule, Allison Marsh
Section 2: Imaging the Microscopic
No abstract provided.
Listen, Allison Marsh
Spotlight On Usc: Mechanical Engineering, Allison Marsh
Spotlight On Usc: Mechanical Engineering, Allison Marsh
Section 3: Imaging the Fast Moving
No abstract provided.
Photographic Evidence, Allison Marsh
Photographic Evidence, Allison Marsh
Section 3: Imaging the Fast Moving
No abstract provided.
Spotlight On Usc: South Carolina Institute For Anthropology And Archaeology, Allison Marsh
Spotlight On Usc: South Carolina Institute For Anthropology And Archaeology, Allison Marsh
Section 4: Imaging the Concealed
No abstract provided.
Influencing Art, Allison Marsh
Influencing Art, Allison Marsh
Section 3: Imaging the Fast Moving
No abstract provided.
Mapping The Ocean Frontier, Allison Marsh
Mapping The Ocean Frontier, Allison Marsh
Section 4: Imaging the Concealed
No abstract provided.
Seeing With Sound, Allison Marsh
Seeing With Sound, Allison Marsh
Section 4: Imaging the Concealed
No abstract provided.
World Ocean Floor, Courtesy Of The Library Of Congress, Allison Marsh
World Ocean Floor, Courtesy Of The Library Of Congress, Allison Marsh
Section 4: Imaging the Concealed
No abstract provided.
Marie Tharp At Her Drafting Table, Courtesy Of The Lamont-Doherty Earth Observatory, Earth Institute, Columbia University, Allison Marsh
Marie Tharp At Her Drafting Table, Courtesy Of The Lamont-Doherty Earth Observatory, Earth Institute, Columbia University, Allison Marsh
Section 4: Imaging the Concealed
No abstract provided.
Conclusion Panel, Allison Marsh
Table Of Contents
Journal of the South Carolina Academy of Science
No abstract provided.
Scas Officers And Council Members 2011 - 2012
Scas Officers And Council Members 2011 - 2012
Journal of the South Carolina Academy of Science
No abstract provided.
Cancer And You, Diah-Aldeen Judeh
Cancer And You, Diah-Aldeen Judeh
A with Honors Projects
This project discusses ways a person can identify cancer and what to do if cancer is present.
2b: "Copy Of Carbon Dioxide Data Illinois Coal", U.S. Energy Information Administration
2b: "Copy Of Carbon Dioxide Data Illinois Coal", U.S. Energy Information Administration
Ecosystem Disruption & Climate Change
No abstract provided.
Properties Of Lewis Lung Carcinoma Cells Surviving Curcumin Toxicity, Michael Eric Geusz, Dejun Yan
Properties Of Lewis Lung Carcinoma Cells Surviving Curcumin Toxicity, Michael Eric Geusz, Dejun Yan
Biological Sciences Faculty Publications
The anti-inflammatory agent curcumin can selectively eliminate malignant rather than normal cells. The present study examined the effects of curcumin on the Lewis lung carcinoma (LLC) cell line and characterized a subpopulation surviving curcumin treatments. Cell density was measured after curcumin was applied at concentrations between 10 and 60 μM for 30 hours. Because of the high cell loss at 60 μM, this dose was chosen to select for surviving cells that were then used to establish a new cell line. The resulting line had approximately 20% slower growth than the original LLC cell line and based on ELISA contained …
Population Viability Analysis Of The Blue-Throated Macaw (Ara Glaucogularis) Using Individual-Based And Cohort-Based Pva Programs, Juan Luis Bouzat, Rosa I. Strem
Population Viability Analysis Of The Blue-Throated Macaw (Ara Glaucogularis) Using Individual-Based And Cohort-Based Pva Programs, Juan Luis Bouzat, Rosa I. Strem
Biological Sciences Faculty Publications
We developed a demographic model to perform a population viability analysis (PVA) of the Blue-throated Macaw (Ara glaucogularis), a critically endangered species endemic to Bolivia. PVA simulations were run using individual based (VORTEX 9.72) and cohort-based (RAMAS GIS 4.0) programs. A baseline simulation allowed for the assessment of the status of the species based on estimates of extinction risk and population declines under current conditions of abundance and habitat availability. The role of multiple demographic, environmental, and anthropogenic parameters was evaluated to assess changes affecting population declines and extinction risk. The baseline simulation showed that the Blue-throated Macaw has a …
Unraveling The Determinants Of Protrusion Formation, Mita Varghese, Peter Gorsevski, Marilyn L. Cayer, Nancy S. Boudreau, Carol A. Heckman
Unraveling The Determinants Of Protrusion Formation, Mita Varghese, Peter Gorsevski, Marilyn L. Cayer, Nancy S. Boudreau, Carol A. Heckman
Biological Sciences Faculty Publications
A computerized morphometric classification technique based on latent factors reveals major protrusion classes: factors 4, 5, and 7. Previous work showed that factor 4 represented filopodia, 5 the distribution of lamellar cytoplasm, and 7 a blunt protrusion. We explore the relationship of focal contact (FC) characteristics and their integrated actin cables to factors values. The results show that FC maturation/cytoskeletal integration affects factor 5, because FC elongation/integration was correlated with its values. On the contrary, 7 values decreased with maturation, so cable or FC size or their integration must be restricted to form these protrusions. Where integration did occur, the …
Extraction Of Dna From Plant And Fungus Tissues In Situ, Scott O. Rogers, Amal S. Abu Almakarem, Katie L. Heilman, Heather L. Conger, Yury M. Shtarkman
Extraction Of Dna From Plant And Fungus Tissues In Situ, Scott O. Rogers, Amal S. Abu Almakarem, Katie L. Heilman, Heather L. Conger, Yury M. Shtarkman
Biological Sciences Faculty Publications
Background: When samples are collected in the field and transported to the lab, degradation of the nucleic acids contained in the samples is frequently observed. Immediate extraction and precipitation of the nucleic acids reduces degradation to a minimum, thus preserving accurate sequence information. An extraction method to obtain high quality DNA in field studies is described. Findings. DNA extracted immediately after sampling was compared to DNA extracted after allowing the sampled tissues to air dry at 21°C for 48 or 72 hours. While DNA extracted from fresh tissues exhibited little degradation, DNA extracted from all tissues exposed to 21°C air …
Plasticity Of Total And Intracellular Phosphorus Quotas In Microcystis Aeruginosa Cultures And Lake Erie Algal Assemblages, Robert Michael Mckay, Matthew A. Saxton, Robert J. Arnold, Richard A. Bourbonniere, Steven W. Wilhelm
Plasticity Of Total And Intracellular Phosphorus Quotas In Microcystis Aeruginosa Cultures And Lake Erie Algal Assemblages, Robert Michael Mckay, Matthew A. Saxton, Robert J. Arnold, Richard A. Bourbonniere, Steven W. Wilhelm
Biological Sciences Faculty Publications
Blooms of the potentially toxic cyanobacterium Microcystis are common events globally, and as a result significant resources continue to be dedicated to monitoring and controlling these events. Recent studies have shown that a significant proportion of total cell-associated phosphorus (P) in marine phytoplankton can be surface adsorbed; as a result studies completed to date do not accurately report the P demands of these organisms. In this study we measure the total cell-associated and intracellular P as well as growth rates of two toxic strains of Microcystis aeruginosa Kütz grown under a range of P concentrations. The results show that the …
An Evaluation Of The Role Of Sensory Drive In The Evolution Of Lake Malawi Cichlid Fishes, Adam R. Smith, Moira J. Van Staaden, Karen L. Carleton
An Evaluation Of The Role Of Sensory Drive In The Evolution Of Lake Malawi Cichlid Fishes, Adam R. Smith, Moira J. Van Staaden, Karen L. Carleton
Biological Sciences Faculty Publications
Although the cichlids of Lake Malawi are an important model system for the study of sensory evolution and sexual selection, the evolutionary processes linking these two phenomena remain unclear. Prior works have proposed that evolutionary divergence is driven by sensory drive, particularly as it applies to the visual system.While evidence suggests that sensory drive has played a role in the speciation of Lake Victoria cichlids, the findings fromseveral lines of research on cichlids of LakeMalawi are not consistent with the primary tenets of this hypothesis. More specifically, three observations make the sensory drive model implausible in Malawi: (i) a lack …
Phylomarker—A Tool For Mining Phylogenetic Markers Through Genome Comparison: Application Of The Mouse Lemur (Genus Microcebus) Phylogeny, Runhua Lei, Thaine W. Rowley, Lifeng Zhu, Carolyn A. Bailey, Shannon E. Engberg, Mindy L. Wood, Mary C. Christman, George H. Perry, Edward E. Louis Jr., Guoqing Lu
Phylomarker—A Tool For Mining Phylogenetic Markers Through Genome Comparison: Application Of The Mouse Lemur (Genus Microcebus) Phylogeny, Runhua Lei, Thaine W. Rowley, Lifeng Zhu, Carolyn A. Bailey, Shannon E. Engberg, Mindy L. Wood, Mary C. Christman, George H. Perry, Edward E. Louis Jr., Guoqing Lu
Biology Faculty Publications
Molecular phylogeny is a fundamental tool to understanding the evolution of all life forms. One common issue faced by molecular phylogeny is the lack of sufficient molecular markers. Here, we present PhyloMarker, a phylogenomic tool designed to find nuclear gene markers for the inference of phylogeny through multiple genome comparison. Around 800 candidate markers were identified by PhyloMarker through comparison of partial genomes of Microcebus and Otolemur. In experimental tests of 20 randomly selected markers, nine markers were successfully amplified by PCR and directly sequenced in all 17 nominal Microcebus species. Phylogenetic analyses of the sequence data obtained for 17 …
Stress Hormone In White-Throated Sparrows (Zonotrichia Albicollis) Is Not Influenced By The Cleanliness Of A Cotton Bag, Nidun Daniel, Gregory B. Cunningham
Stress Hormone In White-Throated Sparrows (Zonotrichia Albicollis) Is Not Influenced By The Cleanliness Of A Cotton Bag, Nidun Daniel, Gregory B. Cunningham
Biology Faculty/Staff Publications
Bird banding stations are used throughout North America to trap and band birds, which allow researchers and government agencies to monitor populations, migration routes, health and a variety of other elements of avian physiology and biology. Birds are commonly trapped in mistnets, placed into a cotton bag, and brought to a research station where they are banded, weighed, measured and released. On some days, the number of birds caught may be so high that birds are left to hang in the bags for 10 – 20 minutes while other birds are processed. During this time in the bag the birds …
Central And Peripheral Regulation Of Circadian Gastrointestinal Rhythms, Jaclyn Malloy
Central And Peripheral Regulation Of Circadian Gastrointestinal Rhythms, Jaclyn Malloy
Theses and Dissertations--Biology
Circadian clocks are responsible for daily rhythms in gastrointestinal function which are vital for normal digestive rhythms and health. The present study examines the roles of the circadian pacemaker, the suprachiasmatic nuclei (SCN), and the sympathetic nervous system in regulation of circadian gastrointestinal rhythms in Mus musculus. Surgical ablation of the SCN abolishes circadian locomotor, feeding, and stool output rhythms when animals are presented with food ad libitum, while restricted feeding reestablishes these rhythms temporarily. In intact mice, chemical sympathectomy with 6- hydroxydopamine has no effect on feeding and locomotor rhythmicity, but attenuates stool output rhythms. Again, restricted …
The Biology And Management Of Brucellosis In Yellowstone Bison, John Joseph Treanor
The Biology And Management Of Brucellosis In Yellowstone Bison, John Joseph Treanor
Theses and Dissertations--Biology
Disease management along the boundaries of wildlife reserves is a growing conservation problem worldwide, as infected wildlife can migrate outside protected areas and pose a threat to livestock and human health. The bison Bison bison population in Yellowstone National Park has long been infected with Brucella abortus, the bacterium causing bovine brucellosis. Concern over migratory bison transmitting B. abortus to cattle herds on lands adjacent to Yellowstone has led to proposals for bison vaccination. Model simulations suggest that vaccination is unlikely to eradicate B. abortus from Yellowstone bison but could be an effective tool for reducing the level of …
The Cell Division Gene Ftsz2 Of Sinorhizobium Meliloti Is Expressed At High Levels In Host Plant Medicago Truncatula Nodules In The Absence Of Sini, Muhamad Ali K. Shakhatreh, Jayne B. Robinson
The Cell Division Gene Ftsz2 Of Sinorhizobium Meliloti Is Expressed At High Levels In Host Plant Medicago Truncatula Nodules In The Absence Of Sini, Muhamad Ali K. Shakhatreh, Jayne B. Robinson
Biology Faculty Publications
In this study, we investigated the role of quorum sensing (QS) in expression of the Sinorhizobium meliloti cell division gene ftsZ2 in free-living cells and within nodules of its host plant, Medicago truncatula. Using a ftsZ2 promoter reporter fusion, we were able to track the expression of this gene in wild-type S. meliloti cells and QS mutant backgrounds in planta. Our findings revealed that expression of ftsZ2 in free-living cells was changed or reduced in sinI mutant cells compared with wild-type cells while expression in planta was substantially higher in the absence of sinI. The results further clarify the involvement …