Now showing items 41-60 of 222

  • Solubility of carbamazepine in aqueous solutions of sodium dodecyl sulfate 

    Davis, Andrew; Chrzaszcz, Dorothy; Bohorquez, Maria; Pandit, Nivedita K. (2007-05-29)
    Carbamazepine (CZ) is a hydrophobic antiepileptic drug with a very low water solubility. It is important to identify means of improving the solubility of such drugs for better formulation and absorption. One approach to ...
  • The Faber-Jackson relation in Seyfert galaxies 

    Weinzirl, Timothy; Bennett, Wendy; Madland, Mark (2007-05-29)
    Seyfert galaxies, in which accretion onto a massive nuclear black hole acts as a powerful energy source, allegedly have bulges more luminous per unit mass than those in normal galaxies. We have tested this claim through ...
  • Biobehavioral responses to conditioned fear and restraint stress in borderline hypertensive rats (BHR) 

    Knoepfler, J.D.; Sanders, B.J. (2007-05-29)
    The purpose of this experiment was to determine the effects of an early environmental manipulation, handling (H), on cardiovascular (CV) reactivity, freezing behavior and corticosterone (CORT) responses to fear conditioning ...
  • Learning and memory impairments in mice lacking the M2 subtype of muscarinic receptor 

    Bainbridge, Natalie K.; Koselke, Lisa R.; Jeon, Jongrye; Wess, Jurgen; Crawley, Jacqueline N.; Wrenn, Craige C. (2007-05-31)
    The neurotransmitter acetylcholine is an important modulator of cognitive functions such as learning, memory, and attention. These functions of acetylcholine are mediated by its binding to five distinct subtypes of muscarinic ...
  • Gross tissue appearances following hemorrhage, low-pressure stabilization, and resuscitation 

    Hatz, Daniel; McCarty, Bryan M.; Hukee, Luke; Olson, Natalie; Slycord, Susan; Hopkins, James; Devey, Jennifer; Buising, Charisse; Wall, Piper; Henderson, LaRhee (2007-05-31)
    In a severe prolonged hemorrhage and resuscitation protocol, when do gross abnormalities become apparent? Hypothesis: Gross tissue abnormalities will be more obvious in those animals that survive longer. Methods: 8 ...
  • 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 ...
  • Carbon-carbon bond formation via epititanation and aromatization of acetylenes 

    Clayton, Callie J.; Nguyen, Minh D.; Gitua, John N. (2007-05-31)
    The dibutyltitanium(IV) diisopropoxide, Bu2Ti(OPri)2, reacts with acetylenes, RCºCR (1), where R = Ph, Pr, to undergo in high yield epimetalation with Ti(OPri)2 by transfer. Our on-going research has demonstrated the ...
  • Assessing gene expression by real-time polymerase chain reaction 

    Dang, Ngoc; Tran, Paul; Colton, Ben; Torry, Ronald J. (2007-05-31)
    End-point Polymerase Chain Reaction (PCR) is a highly sensitive technique that can be used to assess gene expression in limited tissue/cell samples. However, accurately quantifying gene expression with this method is tedious ...
  • Analysis of mRNA changes as a function of learning and methamphetamine exposure 

    Kostelc, Kate; Sleister, Heidi; Klipec, William D. (2007-05-31)
    Methamphetamine is a powerful, addictive drug that is of great concern in Iowa and the Midwest. Powerful methamphetamine abuse is correlated with depression and learning disabilities (e.g. attention deficit disorder). ...
  • Circular polarization in PKS 1519-273 

    Bennett, Wendy (2007-05-31)
    The intra-day variable BL Lac PKS 1519-273 exhibits variations at centimeter wavelengths in total intensity, linear polarization, and circular polarization. The variability is caused by scintillation due to the interstellar ...
  • Comparing venous to arterial base deficit during hemorrhage and resuscitation 

    Prakash, Shawn; Singh, Sid; Stoeker, Laura; Casmaer, Carter; Wilcox, Jenna; Butler, Paul; Hopkins, James; Devey, Jennifer; Henderson, LaRhee; Buising, Charisse; Wall, Piper (2007-05-31)
    Arterial base deficit is used in assessing trauma patient oxygen debt, life saving intervention requirements, resuscitation adequacy, and mortality risk. Venous blood samples are simpler and less painful to obtain than ...
  • Hierarchical routing using k-SPR 

    Nesheim, Skyler; Smith, Matt (2007-05-31)
    The goal of our research is to create an improved routing protocol for Ad-Hoc Wireless networking. We began our research by studying a protocol developed by two Drake students, Tiffany Meredith and Jennifer Ehrlich, which ...
  • Inability to easily predict individual deaths in a hemorrhage and resuscitation model 

    Butler, Paul; Byers, Melissa; Wall, Piper; Devey, Jennifer; Hopkins, James; Henderson, LaRhee; Buising, Charisse (2007-05-31)
    While working on a hemorrhage with low-pressure stabilization protocol, we examined the possibility of identifying individual animals’ short term outcomes prior to occurrence using the hemorrhage patterns of variables ...
  • Star formation in UV-bright interacting galaxies 

    Hulsebus, Alan; Nelson, Charles H.; Ragan, Sarah; McGleam, Catherine (2007-05-31)
    Galaxy interactions are known to drive interstellar gas toward the nuclear regions, thus triggering bursts of star formation. To investigate the relationship between galaxy interactions and the induced star formation, we ...
  • Selective epoxidation of olefines using dioxirane system 

    Rosebraugh, Matthew; Cole, Erin; Mirafzal, Gholam A. (2007-05-31)
    Oxidation of alkenes using 1,3-dichloromethyldioxirane produces good to excellent yield of epoxide products. The reaction system is facile, mild, efficient and safe. Our results involving epoxidation of various alkene ...
  • Inhibition of drug efflux by pluronics in S. cerevisiae 

    Diezi, Thomas; Ruggle, Brian; Pandit, Nivedita K.; Sleister, Heidi (2007-05-31)
    Overexpression of P-gp efflux pumps is believed to be responsible for multidrug resistance of mammalian cancer cells. Inhibition of these pumps is expected to increase the efficacy and decrease the toxicity of chemotherapeutic ...
  • Photodetachment of O- 

    Zatsarinny, Oleg; Bartschat, Klaus (2007-05-31)
    Photodetachment of O- (2p5)2P° has been investigated with a new R-matrix (close-coupling) code [1] that uses a B-spline basis for the continuum functions. The completeness of the B-spline basis ensures that no Buttle ...
  • A Time-dependent study of photoelectron angular distributions due to laser-induced continuum structures 

    Grum-Grzhimailo, Alexei; Bartschat, Klaus; Strakhova, S.I. (2007-05-31)
    The coupling of an atomic continuum to a discrete state by a strong laser field leads to so-called “laser-induced continuum structures” (LICS). In photo-ionization studies, LICS manifest themselves as autoionization-like ...
  • Self-concept, depression, and negative peer interactions: Exploring the social and psychological health of college students 

    Glick, Gary C. (2007-05-31)
    This exploratory self-report study examined the links between self-concept, psychological health, and negative peer interactions among college students. While a wealth of past research is devoted to examining such constructs ...
  • Looking for indicators of imminent cardiovascular collapse 

    Anklam, Ashley; Dumke, Breanna; Mueller, Dana; Verdick, Christopher; Woodard, Meredith; Hopkins, James; Devey, Jennifer; Buising, Charisse; Henderson, LaRhee; Wall, Piper (2007-05-31)
    Various indicators are used as predictors of lifesaving intervention requirements and mortality risk following severe hemorrhage. We examined hemorrhage and resuscitation data for sensitive and specific indications of ...