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Dental Postgraduates Prefer Hypertutorial Statistics Lessons In Randomized Web Course Comparisons, Craig W. Johnson Jan 2001

Dental Postgraduates Prefer Hypertutorial Statistics Lessons In Randomized Web Course Comparisons, Craig W. Johnson

Faculty, Staff and Student Publications

No abstract provided.


Focus Group Evaluation For Web-Based Courses, James P. Turley, Meena Hussein, Doris L. Ross Jan 2001

Focus Group Evaluation For Web-Based Courses, James P. Turley, Meena Hussein, Doris L. Ross

Faculty, Staff and Student Publications

No abstract provided.


Preliminary Evaluation Of A Guideline Classification System, Elmer Bernstam, Nachman Ash, Mor Peleg, Samson Tu, Edward H. Shortliffe, Robert A. Greenes Jan 2001

Preliminary Evaluation Of A Guideline Classification System, Elmer Bernstam, Nachman Ash, Mor Peleg, Samson Tu, Edward H. Shortliffe, Robert A. Greenes

Faculty, Staff and Student Publications

In a previous paper, we presented a proposed expansion of the National Guideline Clearing-house (NGC) classification1. We performed a preliminary evaluation of the classification based on 100 guidelines randomly selected from the NGC collection. We found that 89 of the 100 guidelines could be assigned to a single guideline category. To test inter-observer agreement, twenty guidelines were also categorized by a second investigator. Agreement was found to be 40-90% depending on the axis, which compares favorably with agreement among MeSH indexers (30-60%)2. We conclude that categorization is feasible. Further research is needed to clarify axes with poor inter-observer agreement.


Persistent Productive Epstein‐Barr Virus Replication In Normal Epithelial Cells In Vivo, Dennis M. Walling, Catherine M. Flaitz, C. Mark Nichols, S. David Hudnall, Karen Adler-Storthz Jan 2001

Persistent Productive Epstein‐Barr Virus Replication In Normal Epithelial Cells In Vivo, Dennis M. Walling, Catherine M. Flaitz, C. Mark Nichols, S. David Hudnall, Karen Adler-Storthz

Faculty, Staff and Student Publications

Productive Epstein‐Barr virus (EBV) replication characterizes hairy leukoplakia, an oral epithelial lesion typically occurring in individuals infected with human immunodeficiency virus (HIV). Serial tongue biopsy specimens were obtained from HIV‐infected subjects before, during, and after valacyclovir treatment. EBV replication was detected by Southern hybridization to linear terminal EBV genome fragments, reverse‐transcriptase polymerase chain reaction amplification of EBV replicative gene transcripts, immunohistochemical detection of EBV replicative protein, and in situ hybridization to EBV DNA. EBV replication was detected in both hairy leukoplakia and normal tongue tissues. Valacyclovir treatment completely abrogated EBV replication in vivo, resulting in resolution of hairy leukoplakia when …


Long-Term Regulation Of Neuronal High-Affinity Glutamate And Glutamine Uptake In Aplysia, J Levenson, S Endo, L S. Kategaya, R I. Fernandez, D G. Brabham, J Chin, J H. Byrne, A Eskin Nov 2000

Long-Term Regulation Of Neuronal High-Affinity Glutamate And Glutamine Uptake In Aplysia, J Levenson, S Endo, L S. Kategaya, R I. Fernandez, D G. Brabham, J Chin, J H. Byrne, A Eskin

Faculty, Staff and Student Publications

An increase in transmitter release accompanying long-term sensitization and facilitation occurs at the glutamatergic sensorimotor synapse of Aplysia. We report that a long-term increase in neuronal Glu uptake also accompanies long-term sensitization. Synaptosomes from pleural-pedal ganglia exhibited sodium-dependent, high-affinity Glu transport. Different treatments that induce long-term enhancement of the siphon-withdrawal reflex, or long-term synaptic facilitation increased Glu uptake. Moreover, 5-hydroxytryptamine, a treatment that induces long-term facilitation, also produced a long-term increase in Glu uptake in cultures of sensory neurons. The mechanism for the increase in uptake is an increase in the V(max) of transport. The long-term increase in Glu uptake …


The Web-Based Interactive Family History Questionnaire, Rita Torkzadeh, Constance M. Johnson, Craig W. Johnson Jan 2000

The Web-Based Interactive Family History Questionnaire, Rita Torkzadeh, Constance M. Johnson, Craig W. Johnson

Faculty, Staff and Student Publications

No abstract provided.


Controlled Comparison Of Emergency Department Charting Software With A Case Simulation Comparator Model, Kirt Walker, Sridhar Rajappan, Todd R. Johnson Jan 2000

Controlled Comparison Of Emergency Department Charting Software With A Case Simulation Comparator Model, Kirt Walker, Sridhar Rajappan, Todd R. Johnson

Faculty, Staff and Student Publications

No abstract provided.


Comparison Of Abbreviated Injury Scale (Ais) And International Classification Of Diseases In Severe Trama Patients, Noriaki Aoki, Molly C. Shek, Todd R. Johnson, Martin A. Shreiber, John B. Holcomb, Matthew J. Wall, Richard W. Cone, Robert Beck Jan 2000

Comparison Of Abbreviated Injury Scale (Ais) And International Classification Of Diseases In Severe Trama Patients, Noriaki Aoki, Molly C. Shek, Todd R. Johnson, Martin A. Shreiber, John B. Holcomb, Matthew J. Wall, Richard W. Cone, Robert Beck

Faculty, Staff and Student Publications

No abstract provided.


Health Informatics Research & Evaluation Design Students Overwhelmingly Prefer Hypertutorial Web-Based Instruction In Randomized Comparison, Craig W. Johnson Jan 2000

Health Informatics Research & Evaluation Design Students Overwhelmingly Prefer Hypertutorial Web-Based Instruction In Randomized Comparison, Craig W. Johnson

Faculty, Staff and Student Publications

No abstract provided.


Java-Based World Wide Web Clinical Trial Data Management, Vinod Aggarwal, Venkatesh Rudrapatna, Craig W. Johnson Jan 2000

Java-Based World Wide Web Clinical Trial Data Management, Vinod Aggarwal, Venkatesh Rudrapatna, Craig W. Johnson

Faculty, Staff and Student Publications

No abstract provided.


The 10 Commandments For Minimally Invasive Removal Of Nonmalignant Intracardiac Tumors, J Chin, A Angers, L J. Cleary, A Eskin, J H. Byrne May 1999

The 10 Commandments For Minimally Invasive Removal Of Nonmalignant Intracardiac Tumors, J Chin, A Angers, L J. Cleary, A Eskin, J H. Byrne

Faculty, Staff and Student Publications

Exogenous recombinant human transforming growth factor beta-1 (TGF-beta1) induced long-term facilitation of Aplysia sensory-motor synapses. In addition, 5-HT-induced facilitation was blocked by application of a soluble fragment of the extracellular portion of the TGF-beta1 type II receptor (TbetaR-II), which presumably acted by scavenging an endogenous TGF-beta1-like molecule. Because TbetaR-II is essential for transmembrane signaling by TGF-beta, we sought to determine whether Aplysia tissues contained TbetaR-II and specifically, whether neurons expressed the receptor. Western blot analysis of Aplysia tissue extracts demonstrated the presence of a TbetaR-II-immunoreactive protein in several tissue types. The expression and distribution of TbetaR-II-immunoreactive proteins in the central …


A Cbfa1-Dependent Genetic Pathway Controls Bone Formation Beyond Embryonic Development, P Ducy, M Starbuck, M Priemel, J Shen, G Pinero, V Geoffroy, M Amling, G Karsenty Apr 1999

A Cbfa1-Dependent Genetic Pathway Controls Bone Formation Beyond Embryonic Development, P Ducy, M Starbuck, M Priemel, J Shen, G Pinero, V Geoffroy, M Amling, G Karsenty

Faculty, Staff and Student Publications

The molecular mechanisms controlling bone extracellular matrix (ECM) deposition by differentiated osteoblasts in postnatal life, called hereafter bone formation, are unknown. This contrasts with the growing knowledge about the genetic control of osteoblast differentiation during embryonic development. Cbfa1, a transcriptional activator of osteoblast differentiation during embryonic development, is also expressed in differentiated osteoblasts postnatally. The perinatal lethality occurring in Cbfa1-deficient mice has prevented so far the study of its function after birth. To determine if Cbfa1 plays a role during bone formation we generated transgenic mice overexpressing Cbfa1 DNA-binding domain (DeltaCbfa1) in differentiated osteoblasts only postnatally. DeltaCbfa1 has a higher …


Predicting The Risk Of Obesity Using A Bayesian Network, Christopher C. Bunn, Min Du, Keyi Niu, Todd R. Johnson, Walker S. Poston, John P. Foreyt Jan 1999

Predicting The Risk Of Obesity Using A Bayesian Network, Christopher C. Bunn, Min Du, Keyi Niu, Todd R. Johnson, Walker S. Poston, John P. Foreyt

Faculty, Staff and Student Publications

No abstract provided.


Intelligent Support Of Gait Analysis, Kathy A. Johnson, Sheldon R. Simon, Philip J. Smith, Jack W. Smith Jan 1999

Intelligent Support Of Gait Analysis, Kathy A. Johnson, Sheldon R. Simon, Philip J. Smith, Jack W. Smith

Faculty, Staff and Student Publications

No abstract provided.


Web Browser Implements Unobtrusive Randomized Comparisons Of Instruction In Health Informatics Classroom, Craig W. Johnson Jan 1999

Web Browser Implements Unobtrusive Randomized Comparisons Of Instruction In Health Informatics Classroom, Craig W. Johnson

Faculty, Staff and Student Publications

No abstract provided.


Isolation Of Lautropia Mirabilis From Oral Cavities Of Human Immunodeficiency Virus-Infected Children, S. N. Rossmann, P. H. Wilson, J. Hicks, B. Carter, S. G. Cron, C. Simon, C. M. Flaitz, G. J. Demmler, W. T. Shearer, M. W. Kline Jun 1998

Isolation Of Lautropia Mirabilis From Oral Cavities Of Human Immunodeficiency Virus-Infected Children, S. N. Rossmann, P. H. Wilson, J. Hicks, B. Carter, S. G. Cron, C. Simon, C. M. Flaitz, G. J. Demmler, W. T. Shearer, M. W. Kline

Faculty, Staff and Student Publications

Lautropia mirabilis, a pleomorphic, motile, gram-negative coccus, has been isolated from the oral cavities of 32 of 60 (53.3%) children infected with human immunodeficiency virus (HIV) and 3 of 25 (12.0%) HIV-uninfected controls; the association of L. mirabilis isolation with HIV infection is significant (P < 0.001). All children in the study, both HIV-infected children and controls, were born to HIV-infected mothers. The presence of this bacterium was not associated with clinical disease in these children. The HIV-infected children with L. mirabilis did not differ from the HIV-infected children without L. mirabilis in immunological status, clinical status, or systemic medications. The role of HIV infection itself or concomitant factors in the establishment of L. mirabilis in the oral cavity remains to be elucidated.


Web Browser As Medical Educator/Researcher Using Html & Javascript, Craig W. Johnson, George Oser, Allan J. Abedor Jan 1998

Web Browser As Medical Educator/Researcher Using Html & Javascript, Craig W. Johnson, George Oser, Allan J. Abedor

Faculty, Staff and Student Publications

No abstract provided.


Phosphorylation Of Elongation Factor 1 And Ribosomal Protein S6 By Multipotential S6 Kinase And Insulin Stimulation Of Translational Elongation, Y W Chang, J A Traugh Nov 1997

Phosphorylation Of Elongation Factor 1 And Ribosomal Protein S6 By Multipotential S6 Kinase And Insulin Stimulation Of Translational Elongation, Y W Chang, J A Traugh

Faculty, Staff and Student Publications

Stimulation of protein synthesis in response to insulin is concomitant with increased phosphorylation of initiation factors 4B and 4G and ribosomal protein S6 (Morley, S. J., and Traugh, J. A. (1993) Biochimie 75, 985-989) and is due at least in part to multipotential S6 kinase. When elongation factor 1 (EF-1) from rabbit reticulocytes was examined as substrate for multipotential S6 kinase, up to 1 mol/mol of phosphate was incorporated into the alpha, beta, and delta subunits. Phosphorylation of EF-1 resulted in a 2-2. 6-fold stimulation of EF-1 activity, as measured by poly(U)-directed polyphenylalanine synthesis. The rate of elongation was also …


Estimation Of The Incidence Of A Rare Genetic Disease Through A Two-Tier Mutation Survey, R Chakraborty, M R Srinivasan, S Raskin Jun 1993

Estimation Of The Incidence Of A Rare Genetic Disease Through A Two-Tier Mutation Survey, R Chakraborty, M R Srinivasan, S Raskin

Faculty, Staff and Student Publications

Recent attempts to detect mutations involving single base changes or small deletions that are specific to genetic diseases provide an opportunity to develop a two-tier mutation-screening program through which incidence of rare genetic disorders and gene carriers may be precisely estimated. A two-tier survey consists of mutation screening in a sample of patients with specific genetic disorders and in a second sample of newborns from the same population in which mutation frequency is evaluated. We provide the statistical basis for evaluating the incidence of affected and gene carriers in such two-tier mutation-screening surveys, from which the precision of the estimates …


Can An Anesthesia Machine Flush Valve Provide For Effective Jet Ventilation?, S D Gaughan, J L Benumof, G T Ozaki Apr 1993

Can An Anesthesia Machine Flush Valve Provide For Effective Jet Ventilation?, S D Gaughan, J L Benumof, G T Ozaki

Faculty, Staff and Student Publications

Transtracheal jet ventilation (TTJV) using a percutaneously inserted intravenous (IV) catheter for the patient who cannot be ventilated or tracheally intubated or, using a jet stylet for changing endotracheal tubes (ETT) in patients for whom subsequent ventilation and/or tracheal reintubation may be difficult, are extremely valuable therapeutic options. The jet ventilation system must have a sufficiently high pressure-oxygen source to drive oxygen through noncompliant tubing and through relatively small IV catheters and/or jet stylets in order to achieve adequate ventilation and oxygenation. There is no evidence that using the common gas outlet of an anesthesia machine by activating the flush …


The Future Of Dental Education, D L Allen Jan 1992

The Future Of Dental Education, D L Allen

Faculty, Staff and Student Publications

No abstract provided.


Multiple Alleles And Estimation Of Genetic Parameters: Computational Equations Showing Involvement Of All Alleles, R Chakraborty Jan 1992

Multiple Alleles And Estimation Of Genetic Parameters: Computational Equations Showing Involvement Of All Alleles, R Chakraborty

Faculty, Staff and Student Publications

Extracellular vesicles (EVs), through their complex cargo, can reflect the state of their cell of origin and change the functions and phenotypes of other cells. These features indicate strong biomarker and therapeutic potential and have generated broad interest, as evidenced by the steady year‐on‐year increase in the numbers of scientific publications about EVs. Important advances have been made in EV metrology and in understanding and applying EV biology. However, hurdles remain to realising the potential of EVs in domains ranging from basic biology to clinical applications due to challenges in EV nomenclature, separation from non‐vesicular extracellular particles, characterisation and functional …


Statistical Interpretation Of Dna Typing Data, R Chakraborty Oct 1991

Statistical Interpretation Of Dna Typing Data, R Chakraborty

Faculty, Staff and Student Publications

No abstract provided.


Inclusion Of Data On Relatives For Estimation Of Allele Frequencies, R Chakraborty Jul 1991

Inclusion Of Data On Relatives For Estimation Of Allele Frequencies, R Chakraborty

Faculty, Staff and Student Publications

No abstract provided.


Identification And Characterization Of The Herpes Simplex Virus Type 2 Gene Encoding The Essential Capsid Protein Icp32/Vp19c, S P Yei, S I Chowdhury, B M Bhat, A J Conley, W S Wold, W Batterson Mar 1990

Identification And Characterization Of The Herpes Simplex Virus Type 2 Gene Encoding The Essential Capsid Protein Icp32/Vp19c, S P Yei, S I Chowdhury, B M Bhat, A J Conley, W S Wold, W Batterson

Faculty, Staff and Student Publications

We describe the characterization of the herpes simplex virus type 2 (HSV-2) gene encoding infected cell protein 32 (ICP32) and virion protein 19c (VP19c). We also demonstrate that the HSV-1 UL38/ORF.553 open reading frame (ORF), which has been shown to specify a viral protein essential for capsid formation (B. Pertuiset, M. Boccara, J. Cebrian, N. Berthelot, S. Chousterman, F. Puvian-Dutilleul, J. Sisman, and P. Sheldrick, J. Virol. 63: 2169-2179, 1989), must encode the cognate HSV type 1 (HSV-1) ICP32/VP19c protein. The region of the HSV-2 genome deduced to contain the gene specifying ICP32/VP19c was isolated and subcloned, and the nucleotide …


Population Amalgamation And Genetic Variation: Observations On Artificially Agglomerated Tribal Populations Of Central And South America, R Chakraborty, P E Smouse, J V Neel Nov 1988

Population Amalgamation And Genetic Variation: Observations On Artificially Agglomerated Tribal Populations Of Central And South America, R Chakraborty, P E Smouse, J V Neel

Faculty, Staff and Student Publications

The interpretation of data on genetic variation with regard to the relative roles of different evolutionary factors that produce and maintain genetic variation depends critically on our assumptions concerning effective population size and the level of migration between neighboring populations. In humans, recent population growth and movements of specific ethnic groups across wide geographic areas mean that any theory based on assumptions of constant population size and absence of substructure is generally untenable. We examine the effects of population subdivision on the pattern of protein genetic variation in a total sample drawn from an artificial agglomerate of 12 tribal populations …


Parentage Analysis With Genetic Markers In Natural Populations I The Expected Proportion Of Offspring With Unambiguous Paternity, R Chakraborty, T R Meagher, P E Smouse Mar 1988

Parentage Analysis With Genetic Markers In Natural Populations I The Expected Proportion Of Offspring With Unambiguous Paternity, R Chakraborty, T R Meagher, P E Smouse

Faculty, Staff and Student Publications

Recent studies indicate that polymorphic genetic markers are potentially helpful in resolving genealogical relationships among individuals in a natural population. Genetic data provide opportunities for paternity exclusion when genotypic incompatibilities are observed among individuals, and the present investigation examines the resolving power of genetic markers in unambiguous positive determination of paternity. Under the assumption that the mother for each offspring in a population is unambiguously known, an analytical expression for the fraction of males excluded from paternity is derived for the case where males and females may be derived from two different gene pools. This theoretical formulation can also be …


Double-Blind Comparison Of Rectally Administered Diazepam To Placebo For Pediatric Sedation: The Cardiovascular Response, Catherine M. Flaitz, Arthur J. Nowak, M. John Hicks Nov 1985

Double-Blind Comparison Of Rectally Administered Diazepam To Placebo For Pediatric Sedation: The Cardiovascular Response, Catherine M. Flaitz, Arthur J. Nowak, M. John Hicks

Faculty, Staff and Student Publications

The sedative and cardiovascular effects of rectally administered diazepam (0.6 mg/kg) were compared to placebo in uncooperative children who required sedation during dental treatment. Twelve healthy preschool children, who required amalgam restorations, were treated during two standardized restorative appointments in a double-blind, crossover study. Blood pressure and pulse were obtained during four specified intervals during the appointment. The behavior of the children during the treatment visits was videotaped and later statistically analyzed using a kinesics/vocalization instrument. Behavioral ratings of cooperation were significantly improved during the treatment visit following diazepam. All interfering bodily movements, patient vocalizations and operator commands for the …


Deflection Of Conventional Versus Nondeflecting Dental Needles In Vitro, Arthur H. Jeske, Bryan F. Boshart Mar 1985

Deflection Of Conventional Versus Nondeflecting Dental Needles In Vitro, Arthur H. Jeske, Bryan F. Boshart

Faculty, Staff and Student Publications

Deflection of conventional and newly introduced nondeflecting dental local anesthetic needles were compared in vitro by radiographic examination of the course of the needles in a hydrocolloid impression material. Results indicated significantly less deflection of the new needles when compared to a variety of conventional needles. Controlled clinical trials will be required to test the significance of this finding.


An Experimental Study Of The Longest Tolerable Time Of The Total Portal Triad Occlusion In Normothermia In Rabbit, X P Chen, Z D Wu Jan 1985

An Experimental Study Of The Longest Tolerable Time Of The Total Portal Triad Occlusion In Normothermia In Rabbit, X P Chen, Z D Wu

Faculty, Staff and Student Publications

No abstract provided.