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Articles 9661 - 9690 of 14566
Full-Text Articles in Entire DC Network
Women In Yemen's Protests, Mary H. Schwoebel
Women In Yemen's Protests, Mary H. Schwoebel
Conflict Resolution Studies Faculty Articles
Amid the upheavals in Yemen, USIP’s Mary Hope Schwoebel discusses the role of women in the political protests and how it is likely to affect their future status
An Effective Pedagogical Approach To Understanding Qualitative And Quantitative Organic Chemistry By Using A Gas Chromatograph Mass Spectrometer, Sagir Patel
Undergraduate Student Symposium
One main objective of organic chemistry courses is to show students how much of a desired organic product is synthesized in the reaction mixture. Here, we report how a Gas Chromatography-Mass Spectrometry (GC-MS) instrument can be applied to a set of common organic chemistry experiments for identifying the main product, any minor product(s) and quantifying the product yield. GC-MS is a powerful analytical instrumentation tool capable of detecting, identifying and quantifying many volatile organic compounds. The GC-MS technique is routinely used in chemistry research and manufacturing laboratories. Despite its wide application in organic chemistry and ease of use, many colleges …
Analyzing Hotel Room Cleanliness On A Microscopic Level, Ahmad Khalid, Kodi Stevens
Analyzing Hotel Room Cleanliness On A Microscopic Level, Ahmad Khalid, Kodi Stevens
Undergraduate Student Symposium
The cost of a hotel room is usually correlated to the quality of the hotel room and the quality of services provided during one’s stay; e.g. the cleanliness of the room and the thoroughness of the cleaning staff. The cleaner a hotel is the more desirable it is. The goal of this experiment was to analyze hotel cleanliness at the microscopic level to determine if pathogenic micro-organisms were present. Samples were taken from telephones, toilet seats, remotes, toilet flushers, bath tubs and doorknobs from five different hotels and grown at room temperature on nutrient agar plates, counted and then isolated. …
The Effect Of Thimerosal-Containing And Thimerosal-Free Pediatric Flu Vaccine On Gene Expression In Saccharomyces Cerevisiae, Christie Rubio
The Effect Of Thimerosal-Containing And Thimerosal-Free Pediatric Flu Vaccine On Gene Expression In Saccharomyces Cerevisiae, Christie Rubio
Undergraduate Student Symposium
Mercury-based preservatives including thimerosal, typically added to some vaccines, may pose health concerns as mercury toxicity has been implicated in many human diseases. In this study, microarray technology and reverse transcriptase-polymerase chain reaction (RT-PCR) were used to examine the potential effects of a typical dose of thimerosal-containing vaccine (TCV) or thimerosal-free (TFV) pediatric flu vaccine on gene expression in Saccharomyces cerevisiae, a model organism that shares roughly 30% of its genome with humans. Yeast were grown in three treatments: standard media (YEPD), YEPD plus TCV, and YEPD plus TFV. Microarray gene expression data were examined for variability both within …
The Effects Of Categorization On Memory, Logan Armstrong
The Effects Of Categorization On Memory, Logan Armstrong
Undergraduate Student Symposium
The purpose of this study was to explore the effects of categorization on our ability to remember events and objects. This is an important question because little research has tested the notion that the ability to categorize helps produce better memory. Morris & Baker-Ward (2007) studied a similar question when they examined whether having the vocabulary to describe an experience affected the ability to remember that experience. Specifically, they tested whether infants who had learned their colors prior to participating in an experiment involving different colored bubbles would recall the experiment better than those who learned the colors after the …
On Parmenides’ Reality, Nathaniel Dolan
On Parmenides’ Reality, Nathaniel Dolan
Undergraduate Student Symposium
The treatment being submitted here for the Farquhar College of Arts and Sciences Undergraduate Student Symposium began quite simply in the form of a journal entry submitted as one of the required elements of Dr. Toscano’s Introduction to Philosophy (PHIL 1010) in the 2010 fall term. The professor’s review and critique of that original work (which was comparably brief compared to this final edition) produced remarks from Dr. Toscano that motivated me to reevaluate my own interpretations of the proposition on Reality put forth by Parmenides of Elea in the fifth century BCE. Having studied philosophy as a personal interest …
More Than Just A Memory, Sebastian Acosta-Nijamkin
More Than Just A Memory, Sebastian Acosta-Nijamkin
Undergraduate Student Symposium
“More than just a memory” is a film about love and friendship. Ethan is confronted with a tough decision: whether to tell the girl he loves how he really feels, or whether to accept the fact that she loves someone else and that Ethan will only be a friend in her eyes. Throughout the film, Ethan is driving in a car, and flashbacks of the night where he chose to be just a friend keep entering his mind. That night he made a choice -- a choice that would change his life forever. The film is directed by Sebastian Acosta-Nijamkin.
Transcriptome Analysis Of Lagenidium Giganteum, Jennifer L. Grant
Transcriptome Analysis Of Lagenidium Giganteum, Jennifer L. Grant
Undergraduate Student Symposium
Mosquitoes are carriers of numerous diseases for instance, malaria and west-Nile virus. Lagenidium giganteum is a parasitic organism during larval stage that infects and kills mosquitoes. In time, this could be proven to be useful in bioengineering to create an environmentally safe insecticide. Molecular research was performed in order to determine the imperative genes in Lagenidium giganteum that hinder the development in mosquito larvae. A culture of Lagenidium giganteum was used to extract RNA and initiate a transcriptome analysis. Large scale sequencing led to the annotation of 20,000 transcripts. PCR amplification was performed using a Qiagen PCR kit in order …
Cognitive Inhibition In Bilinguals Vs. Monolinguals, Juliana Acosta, Raquel Chocron, Jacqueline Pablos
Cognitive Inhibition In Bilinguals Vs. Monolinguals, Juliana Acosta, Raquel Chocron, Jacqueline Pablos
Undergraduate Student Symposium
Bilingualism has been linked to enhanced cognitive abilities and these enhanced abilities are believed to be mediated by the same frontal lobe system that controls language output in bilinguals. Moreover, recent research suggests that this bilingual advantage may be moderated by degree of balance between the two languages such that those who are equally proficient in their two languages show the best performance on cognitive tasks compared to unbalanced bilinguals and monolinguals. For instance, results from one study revealed that balanced bilinguals showed significantly fewer errors on the Wisconsin Card Sorting Test (WCST) than unbalanced bilinguals. Thus, the purpose of …
Budding Brain, Kurshaad Cheenibas, Smit Patel, Adam Adbulhafid, Patrick Cao
Budding Brain, Kurshaad Cheenibas, Smit Patel, Adam Adbulhafid, Patrick Cao
Undergraduate Student Symposium
Mathematics is used to illuminate the world around us by describing what we see through various models. Models can range from simple linear models of gravity and line weaver Burk to complex models such as models of storms. Simple models are easy to use but lack the accuracy in prediction that more complex model provide. The difference between this dynamic model and statistical model are descriptive while dynamic model are predictive. Descriptive model make sense of data and predictive model use the data you have to make prediction. This research seeks to uncover cross disciplinary nature of dynamic model and …
A Regression Study Of The Relation Between Rocks And Fish Assemblages, Kaitlyn Brucker
A Regression Study Of The Relation Between Rocks And Fish Assemblages, Kaitlyn Brucker
Undergraduate Student Symposium
The objective of this study is to see if the amount of rock in a given transect is related to the fish that inhabited the area. A regression analysis is conducted to find the relation between the two variables, rocks and fish. Besides finding the model, the analysis includes the confidence interval for the coefficient s, residual plots, predicted intervals of the number of fish for selected values of the amount of the rock, and identifying outliers and influential points by looking at various statistics, such as RESIDUAL, STUDENTIZED RESIDUALS, COVRATIO, and DFFITS.
Adhesion Of Transferrin To Tisifilcon A Contact Lenses, Darshan Solanki, Stephanie Brinon
Adhesion Of Transferrin To Tisifilcon A Contact Lenses, Darshan Solanki, Stephanie Brinon
Undergraduate Student Symposium
Tear proteins are known to deposit differently on contact lenses of different materials, causing lens wearer comfort to be compromised. We examined the adhesion of transferrin to contact lenses made of tisifilcon A, a rigid gas-permeable silicone hydrogel (FDA Group III). Lenses were incubated 2.0 mg/ml solutions of human holo-transferrin for 1, 2, 3, and 4 days, and protein adhesion was determined by bicinchoninic acid assay. Transferrin adhesion increased from day 0 to day 3 and then dropped after days 4 and 5. This pattern resembled transferrin adhesion to lenses made of polymacon (FDA Group I), alphafilcon (FDA Group …
Tmnt: Dynamic Models Of Cancer And Hiv, Christina Gobin, Emily Nguyen, Fayssa Salomon, Arash Nasajpour
Tmnt: Dynamic Models Of Cancer And Hiv, Christina Gobin, Emily Nguyen, Fayssa Salomon, Arash Nasajpour
Undergraduate Student Symposium
Differential equations are used to build dynamic mathematical models for systems and nonlinear phenomena, which dynamically change with time. Ordinary differential equations describe a relation that contains functions of only one independent variable, and one or more of their derivatives with respect to that variable. Applications of those models are found in biological systems. In one study, homogeneous mathematical models are used to describe the interactions between cancerous cells and the immune system. Modeling using differential equations will allow better understanding of the behavior and spreading of those malignant cells. The models will investigate the dynamics of populations of cancer …
The Impact Of Psychological Stress On An Acute Stress Challenge: An Investigation Into Biochemical, Social And Personality Correlates, Tatiana Viena, Isabelle Barbu
The Impact Of Psychological Stress On An Acute Stress Challenge: An Investigation Into Biochemical, Social And Personality Correlates, Tatiana Viena, Isabelle Barbu
Undergraduate Student Symposium
Stress exposure activates a variety of physiological coping systems. While acute stress responses are considered important for healthy coping, overexposure to stress results in an alteration of the functioning of the stress (HPA) axis, leading to a variety of deleterious psychological and physiological effects. For that reason, understanding and explaining these mechanisms is essential. Here, we sought to determine whether chronic psychological (examination) stress would result in a decreased ability to mount an acute stress and immune response. We also assessed locus of control and social support measures. Thirty subjects participated in 2 sessions (baseline and examination week) in which …
The Effects Of Traditional Weight Training Versus Crossfit On Various Measures Of Physical Performance: A Case Report In A 25 Year Old Healthy And Fit Female, Inna Dumova
Undergraduate Student Symposium
The purpose of this case study was to determine the effects of the CrossFit Workout versus Traditional Weight Training on various performance indices. During the 4-week experimental periods for each of the workouts, the subject consumed a standard Mediterranean diet. Each workout was conducted 3 times per week during those 4 weeks. No pre-workout stimulants were used in either of the workout regimens. Tests were done at the end of the experimental periods to determine the effects each workout had on strength and performance, which were compared to the pre-workout “control” data. Significant changes were found in the vertical jump …
The Effects Of Sugar Substitutes On Gene Expression In Saccharomyces Cerevisiae, Hannah Bromberg
The Effects Of Sugar Substitutes On Gene Expression In Saccharomyces Cerevisiae, Hannah Bromberg
Undergraduate Student Symposium
Sugar substitutes are marketed as being healthier than sucrose (table sugar). Within this experiment, information about how table sugar and three different sugar substitutes, Splenda (sucralose-based), Truvia (stevia-based), and Equal (aspartame-based), affect gene expression in yeast was examined. Since the genomes of yeast and humans are approximately 30% similar, the specific genes selected for analysis in yeast overlapped with genes that are expressed in humans. Thus, Saccharomyces cerevisiae (Baker’s yeast) was used as a model eukaryotic organism in order to examine the effects of sugar substitute exposure on gene expression. The yeast was grown under four different conditions: 1) A …
The Effect Of Water Temperature On Florida Manatee (Trichechus Manatus Latirostris) Abundance In Port Everglades, Brittany Lape
The Effect Of Water Temperature On Florida Manatee (Trichechus Manatus Latirostris) Abundance In Port Everglades, Brittany Lape
Undergraduate Student Symposium
Port Everglades, located near Nova Southeastern University’s Oceanographic Center, is a wintering area for the Florida manatee (Trichechus manatus latirostris), because it is a warm-water habitat. This study used data that were collected on trips through the Port, which was then examined with the following criteria for comparison: past water temperature versus current water temperature, past surveyed manatee numbers versus current manatees surveyed, and water temperature versus manatees surveyed. These comparisons were examined to illustrate any climate change trends that have occurred, as well as how those have affected the manatees in Port Everglades. These data were then …
The Effectiveness Of Various Pesticides On Aphid Infestations, Saamia Shaikh, Darshan Solanki
The Effectiveness Of Various Pesticides On Aphid Infestations, Saamia Shaikh, Darshan Solanki
Undergraduate Student Symposium
The main goal of this research was to examine the effectiveness of various pesticides on aphid infestations found on landscape and garden plants. Aphids, also known as plant lice, are small (~5 mm) sap-sucking insects in family Aphidoidea commonly observed in home landscapes and gardens, as well as in many agricultural areas. They are some of the most destructive insects on cultivated plants and control of these pests usually requires pesticide treatments. The three most common types are organic, synthetic, and soap pesticides. We chose three commonly sold varieties at a local home improvement warehouse to use for during this …
The Effects Of An Ad Libitum High Protein-High Fat Diet On Body Composition And Health, Catalina Rodriguez
The Effects Of An Ad Libitum High Protein-High Fat Diet On Body Composition And Health, Catalina Rodriguez
Undergraduate Student Symposium
The purpose of this study was to demonstrate the effects of a high-protein high-fat diet on an inactive 21-year-old female student during two 30-day experimental periods; there was no exercise intervention.. For the first 30 days of the study, a 47% carbohydrate, 23% protein, and 29% fat diet was followed and approximately 1573 calories were consumed. During the second experimental period of 30 days, the subject consumed a higher-protein/higher-fat diet that consisted of 24% carbohydrate, 29% protein, and 48% fat diet. Approximately 1719 calories were consumed daily. A Comprehensive Metabolic Panel and Lipid Panel blood test was obtained at the …
Standardization Of A Technique For Quantification Of Glutathione Concentration In Human White Blood Cells: A Biomarker For Autism?, Luis Puchi, Reina Miranda
Standardization Of A Technique For Quantification Of Glutathione Concentration In Human White Blood Cells: A Biomarker For Autism?, Luis Puchi, Reina Miranda
Undergraduate Student Symposium
Glutathione is an unusual tripeptide ubiquitous in scientific literature for its antioxidant capacity and its relevance as an indicator of oxidative stress. Glutathione’s role within cellular homeostasis is well documented, but the entirety of glutathione’s biochemical role within the human body remains fervently researched. Deficiencies in glutathione have been linked to patients suffering from a wide spectrum of disorders including, cancer, cardiovascular diseases, and autism (Pastore, Federici, Bertini, & Piemonte, 2003). Much of the research on glutathione centers on the relationship between the reduced (GSH) and oxidized (GSSG) versions of the tripeptide. Fluctuations which lower the ratio of GSH to …
Survey Of Fish Landings In Broward County: Preliminary Results, Jennifer Anders, Kaitlin De'aeth
Survey Of Fish Landings In Broward County: Preliminary Results, Jennifer Anders, Kaitlin De'aeth
Undergraduate Student Symposium
Each year thousands of recreational saltwater fishers are drawn to South Florida. Statewide regulations exist to monitor the sport and its associated landings. However, these laws may not be enough to protect local populations. Many of the commonly overfished species in Florida, specifically the snapper and grouper species, are targeted and caught by recreational fishers. To examine the current state of fishing activities in Broward County a questionnaire was created and recreational fishers were asked to participate anonymously. The purpose of the questionnaire is to provide baseline information on targeted species and landings off the coast of Broward County, as …
Synthesis Of Porous Organic Materials For Gas Storage Media, Reena Parikh
Synthesis Of Porous Organic Materials For Gas Storage Media, Reena Parikh
Undergraduate Student Symposium
The purpose of this research is to help synthesize porous organic materials as possible gas storage media. Moreover, experimentation and chemical reactions will assist in finding and producing products that will be porous. Their porous nature will enable them to hold a certain volume of gas or act as agents for drug delivery. Earlier research involved a reaction to place an extra ring on the compound NBAIICuOAc. This molecule has two benzene rings, of which have shown to hold a trace amount of methane gas after DMF and H2O have been removed from it. It has been hypothesized …
Singles View Other Singles As Sexy: The Influence Of Relationship Status On Judgments Of Attractiveness, Jenna Wells
Singles View Other Singles As Sexy: The Influence Of Relationship Status On Judgments Of Attractiveness, Jenna Wells
Undergraduate Student Symposium
Previous studies on whether people find single or non-single opposite-sex targets more attractive are inconsistent (e.g., O’Hagen et al., 2003; Bressan & Stranieri, 2008; Uller & Johansson, 2003); these effects may vary according to social and hormonal factors (e.g., Gangestad et al., 2004). We propose that participants’ own relationship status may influence their judgments of the attractiveness of single and non-single people. In the present study, 43 participants each rated the attractiveness of ten “profiles,” using a between-participants design. Each profile consisted of a photograph and short personal description of a young opposite-sex adult. Half the profiles were depicted as …
Crystalline Metal-Organic Frameworks Drug Transfer, James M. Brandes
Crystalline Metal-Organic Frameworks Drug Transfer, James M. Brandes
Undergraduate Student Symposium
A relatively new type of chemical compound is finding application in such areas as gas storage, and drug delivery. Metal-organic frameworks, or MOF’s, are rigid structures with large cavities which other molecules can occupy for later release and use. We are studying the properties of new MOF’s based on copper and organic molecules known as BAII’s. In at least one case it has been demonstrated that these frameworks are capable of adsorbing, and later desorbing, host molecules. This makes them candidates for drug delivery and gas storage. The synthesis, characterization and adsorption properties of one framework will be discussed. A …
Peace Through Hostility: The Beats' Call For Equality Through Aggressive Poetic Imagery, Dan Abella
Peace Through Hostility: The Beats' Call For Equality Through Aggressive Poetic Imagery, Dan Abella
Undergraduate Student Symposium
This paper focuses on the poetic techniques of two Beat poets, Lenore Kandel and Allen Ginsberg, whose impressionistic, caustic poetry is in some ways representative of the entire Beat movement. Kandel's poems ring with overt sexual overtones, seemingly unconcerned with respect to morality or grace, invoking instead shocking and disturbing images. In her poetry is an intrepid protest of violence and conformity through the paradoxical use of violent description. Like the other Beat poets, she often refused to compromise in either structure or content, adopting a flowing, free-verse form. Allen Ginsberg's poetry employs the same modes: free verse, shocking context, …
Myh16 Masticatory Gene Mutation Correlates With The Evolution Of Human Morphological Cranial Capacity, Renee Michelle Potens
Myh16 Masticatory Gene Mutation Correlates With The Evolution Of Human Morphological Cranial Capacity, Renee Michelle Potens
Undergraduate Student Symposium
In the late Miocene, Homo sapiens encephalization accelerated simultaneously with an anatomic craniofacial transformation, associated with a shift towards a gracilization pattern of diet. Hansell H. Stedman has discovered a deleterious masticatory gene mutation responsible for jaw muscle development that is found in all modern human populations. This gene is functionally conserved in all non-human primates such as chimpanzees and extinct Hominidae species such as Australopithecus and Paranthropus, and is only found in its mutated, non-functional state in humans. The myosin heavy chain (MYH16) inactivation occurred after the divergence of the phylogenic lineages leading to humans and …
Nonlinear Analysis Of Phosphorus Levels In Lake Okeechobee And Proposals Of Solutions, Lacrima Nemulescu
Nonlinear Analysis Of Phosphorus Levels In Lake Okeechobee And Proposals Of Solutions, Lacrima Nemulescu
Undergraduate Student Symposium
The research was designed to analyze the phosphorus levels in Lake Okeechobee and the consequences related to the introduction of supplemental nutrients in an oligotrophic ecosystem. The eutrophication of a fresh water habitat has the potential of negatively impacting the underwater species, as well as the predators that depend on these organisms to obtain their nutrition. An increase in the amount of phosphorus has portrayed a positive correlation with the stimulation of plant growth. The most detrimental consequences are associated to algal overgrowth, which causes the oxygen levels inside the water to decrease and therefore deplete the sub aquatic environment …
Mobile Operating Systems, Adenji Baker, Enrique Lifshitz
Mobile Operating Systems, Adenji Baker, Enrique Lifshitz
Undergraduate Student Symposium
Over the last decade, there has been a proliferation on mobile computers. Last year, more than 67 million smart phones were sold in the United States. Not all mobile computers are the same; these devices, have different hardware and operating systems. Each different mobile device and operating system has unique features and is targeted to a distinct demographic. For example, Blackberry devices are marketed as the business smartphone, on the other hand, the numerous amount of applications available for the iPhone make this device a favorite among the average youth.
Mobile operating systems are often compared by its features and …
The Occurrence Of Helicosporidium In Freshwater Bodies In South Florida, Jhanelle Dawes
The Occurrence Of Helicosporidium In Freshwater Bodies In South Florida, Jhanelle Dawes
Undergraduate Student Symposium
Helicosporidium is a mosquito pathogen found in most South Florida water ecosystems. It is composed of four cells and related to green algae but is non- photosynthetic. It has been proven to be a vector control agent and has therefore shown the potential to eradicate mosquito-borne diseases. However, barely any biogeographical and ecological data regarding Helicosporidium exists. In order to determine the occurrence of Helicosporidium in environmental freshwater samples, water samples were collected from a local south Florida natural freshwater body. The metagenomic DNA extraction and specific amplification of Helicosporidium 18S rDNA genes using Polymerase Chain Reaction were then performed …
The Influence Of Emotional Stimuli On Attention Sharing In A Dual Modality Erp Paradigm: Effects Of Varying Interstimulus Intervals, Amanda Lynch
Undergraduate Student Symposium
A large and growing body of evidence demonstrates that attention is preferentially allocated to stimuli with emotional content. Emotionally negative stimuli serve as a mechanism of biological preparedness to enhance attention. In agreement with this idea, previous studies looking at the influence of emotional pictures on tone processing showed that the ERP measures of cognition was reduced when participants were exposed to an emotional picture with intermittent auditory startle probes We hypothesized that if an auditory oddball (attention capturing) stimulus was placed in the same perceptual time frame as a preceding emotional picture, the auditory stimulus would then share attention …