Now showing items 61-80 of 232

  • Des Moines Disconnected: Uniting the Metro Through Public Transportation Options 

    Anderson, Sarah; Hadzisulejmanovic, Igor; Hoffmann, Annie; Rivera, Derma; Yashack, Ryan; Yin, Yue (Iris) (Drake University, 2014)
    Des Moines has become a city disconnected from its metropolitan suburbs. As the metro area has expanded, the growth has been limited primarily to the suburbs. While the downtown has experienced an “urban renaissance” in ...
  • "Detection of PIGF protein in neonatal rat cardiomyocytes" 

    Schweizer, Marin; Bohman, Kyle; Mittelstedter, Carrie; Colton, Benjamin; Torry, Ronald J.; Torry, Donald S. (2005-07-05)
    Angiogenesis, the formation of blood vessels, can provide blood to the heart when its normal arteries are compromised. Angiogenesis is highly dependent on the Vascular Endothelial Growth Factor (VEGF) family. Placental ...
  • Determination of Extra-Pair Fertilization and Inbreeding Using Microsatellite Genotyping in a Captive Population of Zebra Finches 

    Miller, Lindsay J.; Tucci, Julia (2011-04-15)
    True monogomy is atypical among animal species. The zebra finch, Taeniopygia guttata, is an exception, renown for forming life-long monogamous relationships. We explored the extent of monogamy in a captive population of ...
  • The Determination of the Amount of Vanillin in Commercially Available Products 

    Nguyen, Xuan-An T. (2009-06-24)
    The purpose of this study was to determine whether there is a correlation between the amounts of vanillin and the taste of the commercially available products. Extraction of vanillin from such products obtained from the ...
  • The Determination of The Product of Vanillin in Commercially Available Products 

    Nguyen, Xuan-An T.; McGrannahan, Melissa M. (2010-05-10)
    Synthetic vanillin, instead of natural vanilla extract, is sometimes used as a flavoring agent in foods, beverages, and pharmaceuticals. The purpose of this study was to determine whether there is a correlation between the ...
  • Development of a Thermocouple Device to Measure Zebra Finch Nest Temperature During Incubation 

    Heiman, Jordan (2011-04-15)
    Determination of avian nesting behavior is challenging for a number of reasons: accessing the nest can be difficult, electronic recording devices are costly and may be damaged by the parents, and presence of the device ...
  • Development of iPad Application "Sound Reading" 

    DuToit, Ryan; Hansen, Bennett (2012-04-23)
    Mobile computing is a high interest topic in computer science today. The Drake University Virtual Language Studies is taking advantage of this trend by developing an iPad application. The application, “Sound Reading,” ...
  • The Development of the P300 event related potential in rats during the initial stages of shaping lever pressing 

    Blomgren, Katherine; Rozek, Ellen; Verlautz, Stephanie; Grinsted, Kristen; Klipec, William D. (2007-06-01)
    Several experiments in our laboratory have shown that P300 ERP amplitude in rats is a decremental function of conditioned stimulus proximity to primary reinforcement in behavioral chains. We have also demonstrated robust ...
  • "Development of the rat P300 ERP during backward chaining" 

    Stanley, Kacey; Lem, Katherine; Klipec, William D. (2005-06-23)
    Several experiments in our laboratory shown P300 amplitude to be an incremental function of proximity to conditioned reinforcers in simple behavioral chains. In this paradigm, one tone predicts lever insertion while a ...
  • Development of the System Selectivity Cube 

    Johnson, Andy; Marrinan, Tommy (2010-05-10)
    The goal of chromatography is to separate components of a mixture. There are a number of different systems that can be used to achieve this, and each will separate the components to varying extents according to their ...
  • Direct Contact Membrane Distillation 

    Singh, Amarpreet; Richardson, Tra-My Justine; Gormly, Sherwin (2010-04-21)
    Direct Contact Membrane Distillation (DCMD) is a primary membrane treatment process of the Direct Osmotic Concentration System (DOC), designed to recycle spacecraft wastewater. The DOC combines three separate processes to ...
  • Disability Challenges the Ethics of Running Culture 

    Heger, Amy; DeLong, Jenna (2010-04-21)
    This article reviews moral dilemmas the running community is currently facing as a result of the participation of athletes with medical conditions in competitive events. A detailed review of the experiences and treatment ...
  • Distribution and Prevalence of Bacteria Found on the Door Handles of Olin Hall, Drake University 

    Baadhaim, Moayad; Kusner, David; Ahmed, Humayun (2011-04-20)
    Fomites are inanimate objects that serve in the spread of infectious disease. Our hypothesis was that door handles may aid in the spread of microbes between individuals and that they may be a reservoir of microbial ...
  • "Do restored wetlands create suitable waterfowl habitat?" 

    Anderson, Scott H.; Summerville, Keith S. (2005-06-23)
    Historically, North American wetland ecosystems supported substantial waterfowl biodiversity prior to agricultural development. Loss of wetland habitats in agricultural states such as Iowa is often linked to regional ...
  • Do Small, Urban Restorations Create Habitat for Regionally Declining Plant and Animal Species? 

    Lane, Jamie; Lang, Bret; Diaz, Margarita; Chicoine, Tayler (2010-04-28)
    Collaborative efforts are often important in achieving ecological goals. We partnered with SE Polk High School to create a peer-mentoring research team with two goals: (1) to build environmental education into the high ...
  • Does Between-Category Similarity Influence Categorization? 

    Dihiansan, Louise (2009-04-21)
    Humans can categorize objects at different levels of abstraction: basic (for example, cars and chairs) and superordinate (for example, vehicles and furniture). Usually, basic-level categorization is acquired faster than ...
  • Drake University Virtual Reality Project 

    Horvath, Ryan; McVey, Sean; Love, DeCarlos; Nesheim, Skyler (2007-05-31)
    The Drake University Virtual Reality Project is an ongoing endeavor with the primary goal of producing a working CAVE system, which is a virtual, immersive 3D theater. The Drake Virtual Reality Project utilizes low cost ...
  • Drug Products That Appear In The Stool Of Patients 

    Snodgrass, Lindsay; Ferring, Atalie (2011-04-19)
    Some medications are extended release products because they release the drug slowly in the body. Some extended release products are designed to leave behind an undissolved portion, which is excreted in the patient’s ...
  • Ectoparasite Abundance and Individual Color Variation in Three Cardueline Finch Species 

    Kennedy, Kyle P.; Knutie, Sarah A. (2010-05-10)
    Elaborate and/or colorful bird plumages have often been hypothesized to evolve via sexual selection for increased ornamentation. Differences in coloration among individuals can be influenced by a number of variables, ...
  • The Effect of Aversive Early Experience on the Behavioral and Biological Fear Response in Rats 

    Dicken, Matthew; McFarland, Carol; Holsker, Kristin; Ippolito, Kelly; Weiss, Charlie (2009-06-24)
    The effects of both positive and negative early life experiences on subsequent emotional reactivity are a major focus in current research on the etiology of neuropsychiatric disorders. Specifically, traumatic events, ...