111 results on '"White LW"'
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2. Treatment of a mutilated dentition with the mandibular protraction appliance: a patient report.
- Author
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Coelho CM, Coelho F, and White LW
- Published
- 2009
3. The effects of olfactory stimulation on the appetites of nursing home residents.
- Author
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Brouillette ME and White LW
- Abstract
The effects of olfactory stimulation on appetite were evaluated (under experimental conditions) by measuring the caloric intake of 16 nursing home residents for five weeks. Two osmotherapy techniques, including (1) total room aromas and (2) individual sniff bottles, were used in conjunction with reminiscence as independent variables. A mixed analysis of variance was used to analyze data. Although there were no statistically significant differences between groups, several observations were made regarding increases in olfactory acuity and attention levels of the residents. These observations indicate the need for further research into an empirically useful treatment technique. [ABSTRACT FROM AUTHOR]
- Published
- 1991
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4. Quinine Cardiotoxicity: A Mechanism for Sudden Death in Narcotic Addicts
- Author
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Levine, LH, Hirsch, CS, and White, LW
- Abstract
Narcotic abuse has reached alarming proportions in many areas of the United States, carrying with it a pernicious morbidity and a tragic mortality. The latter is estimated to be approximately 0.7 percent of the addict population per annum. There were over 1000 such deaths annually in 1969 and 1970 in New York City alone. Eighty percent of these fatalities in New York are attributed to “immediate acute reactions” following administration (usually intravenous) of narcotics. In Dade County (Metropolitan Miami), Florida, 86 of 87 narcotic-related fatalities, excluding 13 violent deaths in the reported series, “collapsed and died following the injection of a narcotic”. The mechanisms of sudden death in this circumstance are complex and have not been elucidated completely. Several possible explanations include narcotic overdosage with respiratory depression, narcotic induced postural hypotension, hypersensitivity or anaphylactic reaction, idiosyncratic reaction to unspecified material(s), adverse response to intravenous injection of colloid or particulate material (“colloidoclastic crisis”), or adverse reactions to adulterants in narcotic packets which are purchased “on the street”.
- Published
- 1973
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5. Effect of glucocorticoids on metabolism of carbohydrate by kidney cortex
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White, LW, primary and Landau, BR, additional
- Published
- 1966
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6. Bengtsoniella intestinalis gen. nov., sp. nov., a member of the family Oscillospiraceae , isolated from the hindgut of the marine herbivorous fish Kyphosus sydneyanus .
- Author
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Pardesi B, Roberton AM, Wollmuth EM, Angert ER, Rosendale DI, White LW, and Clements KD
- Subjects
- Animals, New Zealand, Base Composition, Nucleic Acid Hybridization, Formates metabolism, Butyrates metabolism, Fishes microbiology, Bacteroidetes isolation & purification, Bacteroidetes genetics, Bacteroidetes classification, RNA, Ribosomal, 16S genetics, Phylogeny, Fatty Acids, DNA, Bacterial genetics, Bacterial Typing Techniques, Sequence Analysis, DNA
- Abstract
A Gram-stain-negative, non-spore-forming, rod-shaped, obligately anaerobic bacterium, designated strain BP47G, was isolated from the hindgut of a silver drummer ( Kyphosus sydneyanus ) fish collected from the Hauraki Gulf, New Zealand. Phylogenetic analysis based on the 16S rRNA gene sequence of the isolate indicated that it belonged to the family Oscillospiraceae in the phylum Bacillota . The gene sequence of BP47G was most similar to Oscillibacter valericigenes with 95.23% sequence identity. Isolate BP47G grew on agar medium containing mannitol and fish gut fluid as the sole carbon sources. Clear colonies of ~1 mm diameter grew within a week at 20-28 °C (optimum 28 °C) and pH 7.1-8.5 (optimum 8.5). BP47G tolerated the addition to the medium of up to 1% NaCl. Formate and butyrate were the major fermentation products. The major cellular fatty acids were C
12:0 , C13:0 , iso-C14:0 , C16:0 and C16:1 cis 7. Genomic analyses comparing BP47G with its closest relatives indicated low genomic relatedness based on the average nucleotide identity, average amino acid identity, percentage of conserved protein and in silico DNA-DNA hybridization. Supported by the phenotypic and taxonomic characteristics observed in this study, a novel genus and species Bengtsoniella intestinalis gen. nov., sp. nov. is proposed for isolate BP47G (=ICMP 24688=JCM 35770).- Published
- 2024
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7. The Bright Ideas TBI Camp: fostering innovation in interprofessional education and collaborative practice for traumatic brain injury by students in rehabilitation professions.
- Author
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White LW, Smith KG, Bates C, Saale B, Choi D, Drake SM, Thompson T, and Davis TM
- Subjects
- Humans, Patient Care Team organization & administration, Students, Health Occupations psychology, Program Evaluation, Brain Injuries, Traumatic rehabilitation, Cooperative Behavior, Interprofessional Relations, Interprofessional Education organization & administration
- Abstract
This report describes an innovative interprofessional education collaborative practice (IPCP) experience for rehabilitation professions students using a unique on-campus camp model through a community-academic partnership. Throughout the three-day camp, known as the Bright Ideas TBI Camp, interprofessional student groups deliver tailored health and wellness services to individuals with disabilities due to traumatic brain injury and their caregivers. Initial program evaluation suggests that this camp model offers an effective IPCP experience for students while addressing community health needs. Further outcome evaluation is needed to determine the impact of the camp on students' development of IPCP competencies and health outcomes of clients and caregivers.
- Published
- 2024
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8. Regarding treatment change comparisons between skeletal Class I and II relationships in white adolescents with 3 different vertical divergencies.
- Author
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White LW
- Subjects
- Adolescent, Humans, White People, Malocclusion, Angle Class II therapy, Malocclusion, Angle Class II diagnostic imaging
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- 2024
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9. Perspectives of Speech-Language Pathologists and Students on Providing Care to People Living With Dementia: A Scoping Review.
- Author
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Mayer JF, Green MR, White LW, and Lemley T
- Subjects
- Humans, Pathologists, Cross-Sectional Studies, Speech, Students, Communication Disorders, Dementia therapy, Speech-Language Pathology education
- Abstract
Purpose: This scoping review aimed to explore the extant literature on the experiences and views of speech-language pathologists (SLPs) and SLP students regarding the provision of care to people living with dementia (PLWD)., Method: A systematic search was conducted using 10 databases for sources published in English from January 2000 through January 2022. Sources were included if participants were practicing SLPs and/or students enrolled in undergraduate communicative disorders or graduate SLP programs and if the concepts of experiences or views on the provision of SLP services to PLWD were explored in the context of any clinical or educational setting. Included sources were systematically extracted for pertinent study characteristics, including SLP roles and settings, concept domains, measures utilized, and facilitators/barriers to effective dementia care., Results: The majority of the 29 included sources were published in either academic journals ( n = 20) or professional organization publications ( n = 5) and used a cross-sectional study design ( n = 19). Participants included SLPs ( n = 22 studies) and graduate ( n = 6 studies), undergraduate ( n = 3 studies), and doctoral students ( n = 1 study). The included studies addressed five primary conceptual domains: experiences, attitudes, roles, knowledge, and confidence. The most commonly addressed barriers and facilitators of effective dementia care were education and training., Conclusions: Mapping and analysis of the current body of knowledge within this scoping review illuminated several knowledge gaps that we propose need to be addressed to meet the education and training needs of SLPs to provide optimal care to PLWD. These include systematically measuring access to and outcomes of evidence-based education and training programs both within and outside of an interprofessional collaborative context.
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- 2023
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10. A validation of discrete-element model simulations for predicting tablet coating variability.
- Author
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Sivanesapillai R, Ehrig A, Nogueira LW, Vukosavljevic B, Grilc B, Ilić IG, Bharadwaj R, and Sibanc R
- Subjects
- Computer Simulation, Drug Compounding methods, Tablets chemistry
- Abstract
Achieving an even coating distribution on tablets during the coating process can be challenging, not to mention the challenges of accurately measuring and quantifying inter-tablet coating variability. Computer simulations using the Discrete Element Method (DEM) provide a viable pathway towards model-predictive design of coating processes. The purpose of this study was to assess their predictivity accounting for both experimental and simulation input uncertainties. To this end, a comprehensive set of coating experiments covering various process scales, process conditions and tablet shapes were conducted. A water-soluble formulation was developed to enable rapid spectroscopic UV/VIS analysis of coating amounts on a large number of tablets. DEM predictions are found to lie within the experimentally inferred confidence intervals in all cases. A mean absolute comparison error of 0.54 % was found between model predictions of coating variability and respective sample point estimates. Among all simulation inputs the parameterization of spray area sizes is considered the most significant source for prediction errors. However, this error was found significantly smaller in magnitude compared to experimental uncertainties at larger process scales underlining the value of DEM in the design of industrial coating processes., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Rahul Bharadwaj and Leon White are employees at Ansys Inc. and Ansys do Brasil LTDA, respectively, and contributed to the coating variability prediction worklow. The remaining authors have no conflicts of interest to declare., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
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11. Tom Mulligan, 1933-2023.
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White LW
- Published
- 2023
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12. Physical Therapists' and Physical Therapist Students' Experiences and Views on the Provision of Physical Therapy Services to People With Dementia: A Scoping Review.
- Author
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White LW, Dawson N, Saale BP, and Lemley T
- Subjects
- Humans, Students, Physical Therapists, Dementia
- Abstract
Background and Purpose: Physical therapists (PTs) require specialized education and training to increase the capacity and competence of the dementia care workforce. Four areas of critical dementia workforce education and training gaps that apply to the physical therapy profession have been identified, including recruitment/retention, financing and cost of training, interprofessional education, and translation/implementation of effective dementia care. A critical step in developing effective training programs and educational curricula is to understand PTs' and PT students' experiences and views on working with people with dementia (PwD). Therefore, the purpose of this scoping review was to examine the extent and types of evidence that explore the experiences and views of PTs and PT students on the provision of physical therapy services to PwD., Methods: The Cochrane Database of Systematic Reviews, Cumulative Index to Nursing and Allied Health Literature (CINAHL), PsychINFO, ERIC, PEDro, Web of Science, and Medline databases and sources of gray literature were searched for sources of evidence that met the inclusion criteria of the review protocol. The literature was mapped according to author, participant role, setting, publication type, study design, study aim, key findings, and dementia workforce training gaps addressed., Results and Discussion: A total of 552 sources of evidence were screened for eligibility, and 16 studies were selected for inclusion. Twelve studies included PTs as participants, and 5 included PT students. Included sources explored PTs' experiences, behaviors, knowledge, attitudes, and confidence in working with PwD and the influence of educational, organizational, and other factors on these domains. Challenges to and strategies for delivering effective care to PwD were examined in multiple sources. The 4 areas of critical dementia workforce education and training gaps were each addressed by at least 1 of the included studies., Conclusions: The current body of literature identifies several gaps in both research and education that need to be addressed before our profession is truly prepared to effectively manage this challenging population of patients with specialized needs., Competing Interests: There are no conflicts of interest or funding sources to disclose by any authors. The authors declare no conflicts of interest., (Copyright © 2022 APTA Geriatrics, An Academy of the American Physical Therapy Association.)
- Published
- 2022
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13. Advancing Culture Change in Radiology Through Communication: The Value of Large- Versus Small-Group Discussions.
- Author
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Whorms DS, Simmons A, Bencardino JT, and Nunes LW
- Subjects
- Communication, Radiography, Radiology
- Published
- 2022
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14. Common Sense Mechanics.
- Author
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White LW
- Published
- 2017
15. Pearls from Dr. Larry White.
- Author
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White LW
- Subjects
- Coloring Agents, Composite Resins chemistry, Dental Materials chemistry, Dental Plaque diagnosis, Dental Prophylaxis instrumentation, Humans, Malocclusion, Angle Class III therapy, Orthodontic Appliance Design, Tooth Movement Techniques instrumentation, Tooth, Impacted therapy, Orthodontics, Corrective methods
- Published
- 2016
16. Pearls from Dr. Larry White.
- Author
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White LW
- Subjects
- Bicuspid surgery, Contraindications, Female, Humans, Mandible surgery, Maxilla surgery, Orthodontic Space Closure methods, Malocclusion, Angle Class II therapy, Tooth Extraction methods
- Published
- 2015
17. Crowd-Sourced Assessment of Technical Skill: A Valid Method for Discriminating Basic Robotic Surgery Skills.
- Author
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White LW, Kowalewski TM, Dockter RL, Comstock B, Hannaford B, and Lendvay TS
- Subjects
- Adult, Female, General Surgery education, General Surgery standards, Gynecology education, Gynecology standards, Humans, Internship and Residency, Male, Middle Aged, Obstetrics education, Obstetrics standards, Reproducibility of Results, Robotic Surgical Procedures education, Urology education, Urology standards, Clinical Competence, Crowdsourcing, Internet, Robotic Surgical Procedures standards, Video Recording
- Abstract
Background: A surgeon's skill in the operating room has been shown to correlate with a patient's clinical outcome. The prompt accurate assessment of surgical skill remains a challenge, in part, because expert faculty reviewers are often unavailable. By harnessing the power of large readily available crowds through the Internet, rapid, accurate, and low-cost assessments may be achieved. We hypothesized that assessments provided by crowd workers highly correlate with expert surgeons' assessments., Materials and Methods: A group of 49 surgeons from two hospitals performed two dry-laboratory robotic surgical skill assessment tasks. The performance of these tasks was video recorded and posted online for evaluation using Amazon Mechanical Turk. The surgical tasks in each video were graded by (n=30) varying crowd workers and (n=3) experts using a modified global evaluative assessment of Robotic Skills (GEARS) grading tool, and the mean scores were compared using Cronbach's alpha statistic., Results: GEARS evaluations from the crowd were obtained for each video and task and compared with the GEARS ratings from the expert surgeons. The crowd-based performance scores agreed with the performance assessments by experts with a Cronbach's alpha of 0.84 and 0.92 for the two tasks, respectively., Conclusion: The assessment of surgical skill by crowd workers resulted in a high degree of agreement with the scores provided by expert surgeons in the evaluation of basic robotic surgical dry-laboratory tasks. Crowd responses cost less and were much faster to acquire. This study provides evidence that crowds may provide an adjunctive method for rapidly providing feedback of skills to training and practicing surgeons.
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- 2015
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18. Crowd-Sourced Assessment of Technical Skills: Differentiating Animate Surgical Skill Through the Wisdom of Crowds.
- Author
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Holst D, Kowalewski TM, White LW, Brand TC, Harper JD, Sorensen MD, Truong M, Simpson K, Tanaka A, Smith R, and Lendvay TS
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- Animals, Humans, Reproducibility of Results, Surveys and Questionnaires, Swine, Video Recording, Clinical Competence standards, Crowdsourcing methods, Laparoscopy methods, Robotic Surgical Procedures methods, Urinary Bladder surgery, Urologic Surgical Procedures methods
- Abstract
Background: Objective quantification of surgical skill is imperative as we enter a healthcare environment of quality improvement and performance-based reimbursement. The gold standard tools are infrequently used due to time-intensiveness, cost inefficiency, and lack of standard practices. We hypothesized that valid performance scores of surgical skill can be obtained through crowdsourcing., Methods: Twelve surgeons of varying robotic surgical experience performed live porcine robot-assisted urinary bladder closures. Blinded video-recorded performances were scored by expert surgeon graders and by Amazon's Mechanical Turk crowdsourcing crowd workers using the Global Evaluative Assessment of Robotic Skills tool assessing five technical skills domains. Seven expert graders and 50 unique Mechanical Turkers (each paid $0.75/survey) evaluated each video. Global assessment scores were analyzed for correlation and agreement., Results: Six hundred Mechanical Turkers completed the surveys in less than 5 hours, while seven surgeon graders took 14 days. The duration of video clips ranged from 2 to 11 minutes. The correlation coefficient between the Turkers' and expert graders' scores was 0.95 and Cronbach's Alpha was 0.93. Inter-rater reliability among the surgeon graders was 0.89., Conclusion: Crowdsourcing surgical skills assessment yielded rapid inexpensive agreement with global performance scores given by expert surgeon graders. The crowdsourcing method may provide surgical educators and medical institutions with a boundless number of procedural skills assessors to efficiently quantify technical skills for use in trainee advancement and hospital quality improvement.
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- 2015
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19. Crowd-sourced assessment of surgical skills in cricothyrotomy procedure.
- Author
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Aghdasi N, Bly R, White LW, Hannaford B, Moe K, and Lendvay TS
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- Humans, Surgical Procedures, Operative education, Clinical Competence standards, Crowdsourcing, Surgical Procedures, Operative standards
- Abstract
Background: Objective assessment of surgical skills is resource intensive and requires valuable time of expert surgeons. The goal of this study was to assess the ability of a large group of laypersons using a crowd-sourcing tool to grade a surgical procedure (cricothyrotomy) performed on a simulator. The grading included an assessment of the entire procedure by completing an objective assessment of technical skills survey., Materials and Methods: Two groups of graders were recruited as follows: (1) Amazon Mechanical Turk users and (2) three expert surgeons from University of Washington Department of Otolaryngology. Graders were presented with a video of participants performing the procedure on the simulator and were asked to grade the video using the objective assessment of technical skills questions. Mechanical Turk users were paid $0.50 for each completed survey. It took 10 h to obtain all responses from 30 Mechanical Turk users for 26 training participants (26 videos/tasks), whereas it took 60 d for three expert surgeons to complete the same 26 tasks., Results: The assessment of surgical performance by a group (n = 30) of laypersons matched the assessment by a group (n = 3) of expert surgeons with a good level of agreement determined by Cronbach alpha coefficient = 0.83., Conclusions: We found crowd sourcing was an efficient, accurate, and inexpensive method for skills assessment with a good level of agreement to experts' grading., (Copyright © 2015 Elsevier Inc. All rights reserved.)
- Published
- 2015
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20. Crowd-sourced assessment of technical skills: an adjunct to urology resident surgical simulation training.
- Author
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Holst D, Kowalewski TM, White LW, Brand TC, Harper JD, Sorenson MD, Kirsch S, and Lendvay TS
- Subjects
- Crowdsourcing methods, Educational Measurement methods, Humans, Physicians, Reproducibility of Results, Urologic Surgical Procedures education, Clinical Competence, Internship and Residency, Robotic Surgical Procedures education, Simulation Training, Suture Techniques education, Urology education, Video Recording
- Abstract
Background: Crowdsourcing is the practice of obtaining services from a large group of people, typically an online community. Validated methods of evaluating surgical video are time-intensive, expensive, and involve participation of multiple expert surgeons. We sought to obtain valid performance scores of urologic trainees and faculty on a dry-laboratory robotic surgery task module by using crowdsourcing through a web-based grading tool called Crowd Sourced Assessment of Technical Skill (CSATS)., Methods: IRB approval was granted to test the technical skills grading accuracy of Amazon.com Mechanical Turk™ crowd-workers compared to three expert faculty surgeon graders. The two groups assessed dry-laboratory robotic surgical suturing performances of three urology residents (PGY-2, -4, -5) and two faculty using three performance domains from the validated Global Evaluative Assessment of Robotic Skills assessment tool., Results: After an average of 2 hours 50 minutes, each of the five videos received 50 crowd-worker assessments. The inter-rater reliability (IRR) between the surgeons and crowd was 0.91 using Cronbach's alpha statistic (confidence intervals=0.20-0.92), indicating an agreement level between the two groups of "excellent." The crowds were able to discriminate the surgical level, and both the crowds and the expert faculty surgeon graders scored one senior trainee's performance above a faculty's performance., Conclusion: Surgery-naive crowd-workers can rapidly assess varying levels of surgical skill accurately relative to a panel of faculty raters. The crowds provided rapid feedback and were inexpensive. CSATS may be a valuable adjunct to surgical simulation training as requirements for more granular and iterative performance tracking of trainees become mandated and commonplace.
- Published
- 2015
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21. Ictal adipokines are associated with pain severity and treatment response in episodic migraine.
- Author
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Chai NC, Gelaye B, Tietjen GE, Dash PD, Gower BA, White LW, Ward TN, Scher AI, and Peterlin BL
- Subjects
- Adult, Cyclooxygenase Inhibitors administration & dosage, Double-Blind Method, Drug Combinations, Female, Humans, Male, Middle Aged, Naproxen administration & dosage, Naproxen pharmacology, Placebos, Sumatriptan administration & dosage, Sumatriptan pharmacology, Vasoconstrictor Agents administration & dosage, Adipokines blood, Cyclooxygenase Inhibitors pharmacology, Migraine Disorders blood, Migraine Disorders drug therapy, Migraine Disorders physiopathology, Severity of Illness Index, Treatment Outcome, Vasoconstrictor Agents pharmacology
- Abstract
Objective: To evaluate ictal adipokine levels in episodic migraineurs and their association with pain severity and treatment response., Methods: This was a double-blind, placebo-controlled trial evaluating peripheral blood specimens from episodic migraineurs at acute pain onset and 30 to 120 minutes after treatment with sumatriptan/naproxen sodium vs placebo. Total adiponectin (T-ADP), ADP multimers (high molecular weight [HMW], middle molecular weight, and low molecular weight [LMW]), leptin, and resistin levels were evaluated by immunoassays., Results: Thirty-four participants (17 responders, 17 nonresponders) were included. In all participants, pretreatment pain severity increased with every quartile increase in both the HMW:T-ADP ratio (coefficient of variation [CV] 0.51; 95% confidence interval [CI]: 0.08, 0.93; p = 0.019) and resistin levels (CV 0.58; 95% CI: 0.21, 0.96; p = 0.002), but was not associated with quartile changes in leptin levels. In responders, T-ADP (CV -0.98; 95% CI: -1.88, -0.08; p = 0.031) and resistin (CV -0.95; 95% CI: -1.83, -0.07; p = 0.034) levels decreased 120 minutes after treatment as compared with pretreatment. In addition, in responders, the HMW:T-ADP ratio (CV -0.04; 95% CI: -0.07, -0.01; p = 0.041) decreased and the LMW:T-ADP ratio (CV 0.04; 95% CI: 0.01, 0.07; p = 0.043) increased at 120 minutes after treatment. In nonresponders, the LMW:T-ADP ratio (CV -0.04; 95% CI: -0.07, -0.01; p = 0.018) decreased 120 minutes after treatment. Leptin was not associated with treatment response., Conclusions: Both pretreatment migraine pain severity and treatment response are associated with changes in adipokine levels. Adipokines represent potential novel migraine biomarkers and drug targets., (© 2015 American Academy of Neurology.)
- Published
- 2015
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22. Comparison of two simulation systems to support robotic-assisted surgical training: a pilot study (Swine model).
- Author
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Whitehurst SV, Lockrow EG, Lendvay TS, Propst AM, Dunlow SG, Rosemeyer CJ, Gobern JM, White LW, Skinner A, and Buller JL
- Subjects
- Adult, Animals, Clinical Competence, Curriculum, Cystotomy methods, Educational Measurement, Humans, Models, Animal, Pilot Projects, Program Evaluation, Prospective Studies, Swine, Task Performance and Analysis, User-Computer Interface, Computer Simulation, Laparoscopy education, Laparoscopy methods, Robotics
- Abstract
Objective: To compare the efficacy of simulation-based training between the Mimic dV- Trainer and traditional dry lab da Vinci robot training., Design: A prospective randomized study analyzing the performance of 20 robotics-naive participants. Participants were enrolled in an online da Vinci Intuitive Surgical didactic training module, followed by training in use of the da Vinci standard surgical robot. Spatial ability tests were performed as well. Participants were randomly assigned to 1 of 2 training conditions: performance of 3 Fundamentals of Laparoscopic Surgery dry lab tasks using the da Vinci or performance of 4 dV-Trainer tasks. Participants in both groups performed all tasks to empirically establish proficiency criterion. Participants then performed the transfer task, a cystotomy closure using the daVinci robot on a live animal (swine) model. The performance of robotic tasks was blindly assessed by a panel of experienced surgeons using objective tracking data and using the validated Global Evaluative Assessment of Robotic Surgery (GEARS), a structured assessment tool., Results: No statistically significant difference in surgeon performance was found between the 2 training conditions, dV-Trainer and da Vinci robot. Analysis of a 95% confidence interval for the difference in means (-0.803 to 0.543) indicated that the 2 methods are unlikely to differ to an extent that would be clinically meaningful., Conclusion: Based on the results of this study, a curriculum on the dV- Trainer was shown to be comparable to traditional da Vinci robot training. Therefore, we have identified that training on a virtual reality system may be an alternative to live animal training for future robotic surgeons., (Published by Elsevier Inc.)
- Published
- 2015
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23. Beyond task time: automated measurement augments fundamentals of laparoscopic skills methodology.
- Author
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Kowalewski TM, White LW, Lendvay TS, Jiang IS, Sweet R, Wright A, Hannaford B, and Sinanan MN
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- Computer-Assisted Instruction methods, Computer-Assisted Instruction standards, Education, Medical standards, Educational Measurement, Humans, Reproducibility of Results, Students, Medical, Suture Techniques education, Time and Motion Studies, User-Computer Interface, Computer-Assisted Instruction instrumentation, Education, Medical methods, Laparoscopy education, Psychomotor Performance, Surgeons education
- Abstract
Background: Laparoscopic psychomotor skills are challenging to learn and objectively evaluate. The Fundamentals of Laparoscopic Skills (FLS) program provides a popular, inexpensive, widely-studied, and reported method for evaluating basic laparoscopic skills. With an emphasis on training safety before efficiency, we present data that explore the metrics in the FLS curriculum., Materials and Methods: A multi-institutional (n = 3) cross-sectional study enrolled subjects (n = 98) of all laparoscopic skill levels to perform FLS tasks in an instrumented box trainer. Recorded task videos were postevaluated by faculty reviewers (n = 2) blinded to subject identity using a modified Objective Structured Assessment of Technical Skills (OSATS) protocol. FLS scores were computed for each completed task and compared with demographically established skill levels (training level and number of procedures), video review scoring, and objective performance metrics including path length, economy of motion, and peak grasping force., Results: Three criteria used to determine expert skill, training and experience level, blinded review of performance by faculty via OSATS, and FLS scores, disagree in establishing concurrent validity for determining "true experts" in FLS tasks. FLS-scoring exhibited near-perfect correlation with task time for all three tasks (Pearson r = 0.99, 1.00, 1.00 with P <0.00000001). FLS error penalties had negligible effect on FLS scores. Peak grasping force did not correlate with task time or FLS scores., Conclusions: FLS technical skills scores presented negligible benefit beyond the measurement of task time. FLS scoring is weighted more toward speed than precision and may not significantly address poor tissue handling skills, especially regarding excessive grasping force. Categories of experience or training level may not form a suitable basis for establishing proficiency thresholds or for construct validity studies for technical skills., (Copyright © 2014 Elsevier Inc. All rights reserved.)
- Published
- 2014
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24. Ictal adiponectin levels in episodic migraineurs: a randomized pilot trial.
- Author
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Peterlin BL, Tietjen GE, Gower BA, Ward TN, Tepper SJ, White LW, Dash PD, Hammond ER, and Haythornthwaite JA
- Subjects
- Adult, Anti-Inflammatory Agents, Non-Steroidal therapeutic use, Blood Glucose, Body Composition, Cholesterol blood, Double-Blind Method, Female, Gonadal Steroid Hormones blood, Humans, Insulin blood, Middle Aged, Migraine Disorders drug therapy, Molecular Weight, Naproxen therapeutic use, Neurologic Examination, Pain Measurement, Pilot Projects, Retrospective Studies, Sumatriptan therapeutic use, Surveys and Questionnaires, Vasoconstrictor Agents therapeutic use, Young Adult, Adiponectin blood, Migraine Disorders blood
- Abstract
Objective: To assess ictal adiponectin (ADP) levels before and after acute abortive treatment in women episodic migraineurs., Methods: Peripheral blood specimens were collected from women episodic migraineurs before and after acute abortive treatment with sumatriptan/naproxen sodium vs placebo. Univariate and multivariate models were utilized to examine the relationship between serum total ADP (T-ADP), ADP oligomers (high molecular weight [HMW], middle molecular weight, and low molecular weight [LMW]-ADP), and ADP ratio levels and pain severity. Paired t-tests and random intercept longitudinal models were utilized to assess the mean changes in T-ADP, ADP oligomers, and ratios over time in treatment responders and nonresponders., Results: Twenty participants (11 responders, 9 nonresponders) have been studied to date. In all participants, increases in the HMW : LMW ADP ratio were associated with an increase in pain severity. For every 1 point increase in the HMW : LMW ratio, pain severity increased by 0.22 (Confidence Interval [CI]: 0.07, 0.37; P = .004). In contrast, for every 0.25 μg/mL increase in LMW-ADP, pain severity decreased by 0.20 (CI: -0.41, -0.002; P = .047). In treatment responders, T-ADP levels were reduced at 30 minutes (12.52 ± 3.4; P = .03), 60 minutes (12.32 ± 3.2; P = .017), and 120 minutes (12.65 ± 3.2; P = .016) after treatment as compared with onset (13.48 ± 3.8). Additionally, in responders, the HMW : LMW ratio level was greater at pain onset (3.70 ± 1.9 μg/mL) as compared with nonresponders (2.29 ± 0.71 μg/mL), P = .050. Responders also showed a decrease in the HMW : LMW ratio at 60 minutes (2.37 ± 1.1; P = .002) and 120 minutes (2.76 ± 1.4; P = .02) after treatment as compared with onset (3.70 ± 1.9). These changes in responders remained significant after adjusting for covariates, including measured body mass index (m-BMI). Although nonresponders showed no significant changes in unadjusted T-ADP or ADP oligomer or ratio levels, the HMW : LMW ratio was increased in nonresponders after adjustments (P = .025)., Conclusion: In this pilot study of women episodic migraineurs, the HMW : LMW ADP ratio level was associated with migraine severity and predictive of acute treatment response. ADP and the HMW : LMW ratio of ADP represent potential novel biomarkers and drug targets for episodic migraine., (© 2013 American Headache Society.)
- Published
- 2013
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25. Content and construct validation of a robotic surgery curriculum using an electromagnetic instrument tracker.
- Author
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Tausch TJ, Kowalewski TM, White LW, McDonough PS, Brand TC, and Lendvay TS
- Subjects
- Electromagnetic Phenomena, Humans, Prospective Studies, Curriculum, Minimally Invasive Surgical Procedures education, Robotics education, Urologic Surgical Procedures education, Urologic Surgical Procedures methods
- Abstract
Purpose: Rapid adoption of robot-assisted surgery has outpaced our ability to train novice roboticists. Objective metrics are required to adequately assess robotic surgical skills and yet surrogates for proficiency, such as economy of motion and tool path metrics, are not readily accessible directly from the da Vinci® robot system. The trakSTAR™ Tool Tip Tracker is a widely available, cost-effective electromagnetic position sensing mechanism by which objective proficiency metrics can be quantified. We validated a robotic surgery curriculum using the trakSTAR device to objectively capture robotic task proficiency metrics., Materials and Methods: Through an institutional review board approved study 10 subjects were recruited from 2 surgical experience groups (novice and experienced). All subjects completed 3 technical skills modules, including block transfer, intracorporeal suturing/knot tying (fundamentals of laparoscopic surgery) and ring tower transfer, using the da Vinci robot with the trakSTAR device affixed to the robotic instruments. Recorded objective metrics included task time and path length, which were used to calculate economy of motion. Student t test statistics were performed using STATA®., Results: The novice and experienced groups consisted of 5 subjects each. The experienced group outperformed the novice group in all 3 tasks. Experienced surgeons described the simulator platform as useful for training and agreed with incorporating it into a residency curriculum., Conclusions: Robotic surgery curricula can be validated by an off-the-shelf instrument tracking system. This platform allows surgical educators to objectively assess trainees and may provide credentialing offices with a means of objectively assessing any surgical staff member seeking robotic surgery privileges at an institution., (Copyright © 2012 American Urological Association Education and Research, Inc. Published by Elsevier Inc. All rights reserved.)
- Published
- 2012
- Full Text
- View/download PDF
26. Composite pontics for orthodontic patients with extraction spaces.
- Author
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Martins RP, Magno AF, Martins IP, Martins LP, and White LW
- Subjects
- Acid Etching, Dental methods, Dental Bonding methods, Denture Retention, Esthetics, Dental, Humans, Orthodontic Space Closure instrumentation, Resin Cements chemistry, Composite Resins chemistry, Dental Materials chemistry, Denture Design, Denture, Partial, Fixed, Resin-Bonded, Denture, Partial, Temporary, Orthodontics, Corrective, Tooth Extraction
- Abstract
Esthetic orthodontic appliances continue to appeal to more patients, which results in objections to extraction spaces that remain for several months during orthodontic therapy. This has led orthodontists to design temporary pontics that fill extraction sites and that can be reduced as the spaces close. This report describes a simple, efficient, and expeditious technique for making such pontics., (© 2010 Quintessence Publishing Co, Inc.)
- Published
- 2010
27. Early tooth extraction in the treatment of anterior open bite in hyperdivergent patients.
- Author
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de Figueiredo MA, Siqueira DF, Bommarito S, Sannomiya EK, and White LW
- Subjects
- Cephalometry, Child, Face anatomy & histology, Female, Humans, Malocclusion, Angle Class II therapy, Molar surgery, Tooth Extraction, Vertical Dimension, Open Bite therapy, Orthodontics, Corrective methods
- Abstract
Aim: To describe the treatment of a 7-year-old patient with a hyperdivergent (dolichofacial) pattern, Class II Division 1 malocclusion, and anterior open bite., Methods: Treatment was performed in 2 stages following the principles of the Ricketts bioprogressive technique and comprised early extraction of the maxillary permanent first molars and primary second molars., Results: The treatment plan established for correction of the initial malocclusion reached the orthodontic goals, providing optimal esthetics and normal function., Conclusion: Posterior dentoalveolar height, which is fundamental in diagnosis and treatment planning, should be investigated in cases with excessive vertical dimension. In addition, extraction of permanent or primary maxillary posterior teeth at an early age may be a good option for hyperdivergent patients with excessive posterior dentoalveolar height.
- Published
- 2007
28. Casual chocolate consumption and inhibition of platelet function.
- Author
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Bordeaux B, Yanek LR, Moy TF, White LW, Becker LC, Faraday N, and Becker DM
- Subjects
- Adult, Cardiovascular Diseases mortality, Cardiovascular Diseases prevention & control, Female, Humans, Male, Middle Aged, Prognosis, Reference Values, Risk Factors, Survival Rate trends, Blood Platelets physiology, Cacao, Candy, Cardiovascular Diseases blood, Platelet Aggregation physiology
- Abstract
Observational studies have associated reduced cardiovascular mortality with chocolate consumption. Feeding studies of high-dose, flavanol-rich chocolate show antiplatelet effects, but the effect of casual chocolate consumption on platelet function is unknown. Healthy adults (N=1535) were proscribed from consuming foods affecting platelet function, including chocolate, for 48 hours and completed a 24-hour dietary recall before ex vivo platelet testing with the Platelet Function Analyzer (PFA)-100 (Dade Behring, Inc, Deerfield, IL) test and in vivo testing with urinary 11-dehydro thromboxane B2 (Tx-M) measurements. Some participants (n=141) reported ignoring the prohibition of consuming chocolate before platelet testing. Despite having similar baseline characteristics, chocolate consumers had longer PFA closure times (130 vs 123 seconds, P=.005) and decreased Tx-M levels (175 vs 290 ng/mol creatinine, P=.03). Chocolate remained a significant independent predictor of both ex vivo and in vivo platelet function testing after adjusting for confounders. The authors concluded that even consuming modest amounts of commercial chocolate has important antiplatelet effects.
- Published
- 2007
- Full Text
- View/download PDF
29. Closing mandibular first molar spaces in adults.
- Author
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Coelho Filho CM, Coelho FO, and White LW
- Subjects
- Adult, Cephalometry, Female, Humans, Mandible, Molar, Tooth Movement Techniques instrumentation, Orthodontic Appliances, Orthodontic Space Closure instrumentation, Orthodontic Space Closure methods
- Abstract
Adult orthodontic patients with missing mandibular first molars and large spaces to close have challenged orthodontists for many decades. Most of the techniques previously used to close such spaces have rendered equivocal results that typically result in compromised treatment. The mandibular protraction appliance offers orthodontic clinicians a method to close those spaces by bringing the mandibular second molars forward without retracting the mandibular incisors. This presents a method for managing large mandibular spaces without resorting to prosthetic replacements.
- Published
- 2006
30. A rationale for expansion.
- Author
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Williams MO and White LW
- Subjects
- Adolescent, Cephalometry, Female, Humans, Dental Arch pathology, Malocclusion therapy, Orthodontic Appliances, Orthodontics, Corrective instrumentation
- Abstract
Over the past 100 years, orthodontists have vacillated between extremes of nonextraction and extraction therapies. Injudicious selection of therapies despite facial dimensions has probably contributed to the major clinical disappointments within each style of therapy. The belief that expansion distal to the canines would not stabilize after the cessation of active treatment has contributed to the reluctance to use such therapy. However, experience has shown that this type of expansive, nonextraction therapy can have success without relapse and merits more attention from the specialty.
- Published
- 2005
31. Integrative orthodontics with the ribbon arch.
- Author
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White LW
- Subjects
- Humans, Malocclusion, Angle Class II therapy, Orthodontic Brackets, Orthodontic Space Closure instrumentation, Stainless Steel, Stress, Mechanical, Titanium, Tooth Movement Techniques instrumentation, Tooth Movement Techniques methods, Torque, Orthodontic Appliance Design, Orthodontic Wires
- Abstract
The ribbon arch had great popularity and utility early in the 20th century, but lost its appeal as edgewise techniques developed. Some clinicians have made attempts to revive the procedure, but they have relied upon costly changes in bracket and band inventories and have not yet received extensive endorsement. A newer approach that relies only upon the use of newly developed titanium and stainless steel ribbon archwires offers orthodontists a simplified and inexpensive method for assimilating this helpful method. Such wires allow orthodontists to create an integrative therapeutic protocol that combines much of the alignment, leveling, and torque control in a single wire.
- Published
- 2004
32. The role of nursing in cervical cancer prevention and treatment.
- Author
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Hilton LW, Jennings-Dozier K, Bradley PK, Lockwood-Rayermann S, DeJesus Y, Stephens DL, Rabel K, Sandella J, Sbach A, and Widmark C
- Subjects
- Female, Forecasting, Humans, Practice Guidelines as Topic, Sweden, United States, Women's Health, Nurse's Role, Uterine Cervical Neoplasms prevention & control, Uterine Cervical Neoplasms therapy
- Abstract
Nurses today assume multiple roles, such as patient advocate, care provider, and research investigator. At the Second International Conference on Cervical Cancer (April 11-14, 2002, Houston, TX), nurses presented original research describing these roles in the context of cervical cancer screening, prevention, and detection in the United States and Sweden; outlined the uses of practice guidelines; and suggested future directions for nursing research. In the 20th century, nurses expanded their patient care responsibilities and promoted cancer control by expanding their skills. Some sought to broaden the spectrum of care by investigating cervical cancer screening disparities, behavioral aspects of screening, and differences between the stated purposes of screening programs and those of the nurse-midwives operating them. In the 21st century, nurses interested in cervical cancer control expect to broaden the scope of their care and their research roles further by continuing to improve training, advocating screening (and increased education about screening), and helping to establish new sources of funding for research., (Copyright 2003 American Cancer Society.)
- Published
- 2003
- Full Text
- View/download PDF
33. Giving credit where credit is due.
- Author
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White LW
- Subjects
- History, 20th Century, History, 21st Century, Humans, Open Bite history, Open Bite therapy, Orthodontic Appliance Design history, Orthodontic Appliances history, Bone Screws history
- Published
- 2003
- Full Text
- View/download PDF
34. Children's ibuprofen suspension for the acute treatment of pediatric migraine.
- Author
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Lewis DW, Kellstein D, Dahl G, Burke B, Frank LM, Toor S, Northam RS, White LW, and Lawson L
- Subjects
- Acute Disease, Child, Double-Blind Method, Female, Humans, Male, Nonprescription Drugs, Prospective Studies, Sex Factors, Suspensions, Treatment Outcome, Analgesics, Non-Narcotic therapeutic use, Ibuprofen therapeutic use, Migraine Disorders drug therapy
- Abstract
Objective: To compare the efficacy of a single over-the-counter dose (7.5 mg/kg, p.o.) of children's ibuprofen suspension vs. placebo for the acute treatment of pediatric migraine., Background: Migraine occurs in 4% of young children. There is a paucity of controlled clinical research in the treatment of childhood migraine and there are currently no approved drugs in the USA for treatment of migraine in children < or = 12 years of age. The purpose of this study is to assess the efficacy and tolerability of a single OTC dose of ibuprofen suspension for the acute treatment of childhood migraine., Methods: Prospective, double-blind, placebo-controlled, parallel group, randomized study of children 6-12 yrs with migraine (I.H.S.-R 1997) treating 1 attack with a 7.5 mg/kg liq. ibuprofen vs matching placebo. Efficacy measures: (1). Headache severity based upon a 4 pt scale (severe, mod., mild, no headache) at 30, 60, 90, 120, 180 and 240 minutes post dose, and (2). nausea, vomiting, and photo/phonophobia at 120 min. The 1 degrees endpoint was cumulative % of responders (severe or mod. headache reduced to mild or none) by 120 minutes. Secondary endpoints were headache recurrence within 4-24 hours and need for rescue medicines within 4 hours., Results: 138 enrolled; 84 treated/completed diary. 45 active agent, 39 placebo. The 2 groups were comparable (active: placebo) - Ages: 9: 9.1, gender boy/girl - 1.25: 1.6, and diagnosis: migraine w/o aura - 86%: 79%. Concomitant use of prophylactic Rx: 24%: 10% (Table 3). Nausea was eliminated in 60% of the ibuprofen treated patients and 39% of the placebo group (p<0.001). Vomiting, photophobia and phonophobia had marginal, but not statistically significant, decreases at 2 hours. A striking gender difference was noted (Table 4): No AE's were reported., Conclusion: Children's ibuprofen suspension at an OTC dose of 7.5 mg/kg is an effective and well-tolerated agent for pain relief in the acute treatment of childhood migraine, particularly in boys. There is a striking difference in gender response rates and placebo responder rates between girls and boys. The boys responded at a statistically significant rate, and girls failed to do so because of a very high placebo responder rate. Multi-center trials are recommended.
- Published
- 2002
- Full Text
- View/download PDF
35. The American orthodontic hegemony.
- Author
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White LW
- Subjects
- Humans, International Cooperation, Malocclusion therapy, United States, Orthodontics trends
- Published
- 2002
36. Optimal post-contrast timing of breast MR image acquisition for architectural feature analysis.
- Author
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Nunes LW, Englander SA, Charafeddine R, and Schnall MD
- Subjects
- Adult, Contrast Media, Female, Humans, Middle Aged, Prospective Studies, ROC Curve, Sensitivity and Specificity, Time Factors, Breast pathology, Breast Diseases diagnosis, Magnetic Resonance Imaging methods
- Abstract
Purpose: To define a post-contrast imaging time span during which diagnostic accuracy of breast magnetic resonance (MR) architectural feature analysis is maintained., Materials and Methods: Seventy-five patients with mammographically-visible or palpable findings underwent MR examination. Three sequential post-contrast, fat-saturated, three-dimensional gradient-echo imaging runs were acquired spanning 0-90, 90-180, and 180-270 seconds after contrast injection. Five readers independently predicted the malignant potential of the MR abnormalities., Results: Receiver-operator characteristics (ROC) curves were our primary measure of diagnostic accuracy. The accuracy of four readers was unchanged over the three post-contrast runs. One reader was slightly more accurate using the second and third runs than using the first., Conclusion: For most readers, a single post-contrast run performed at any point during the first four minutes and 30 seconds following injection should yield an equivalent diagnostic accuracy. If any time period is less optimal, it is that of our first run, performed between 0-90 seconds after contrast injection., (Copyright 2002 Wiley-Liss, Inc.)
- Published
- 2002
- Full Text
- View/download PDF
37. Thinking outside the box.
- Author
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White LW
- Subjects
- Cephalometry methods, Humans, Malocclusion diagnosis, Malocclusion, Angle Class II therapy, Serial Extraction, Tooth Movement Techniques, Malocclusion therapy, Patient Care Planning
- Published
- 2001
38. The geometry of Class II correction with extractions.
- Author
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Bryk C and White LW
- Subjects
- Adolescent, Adult, Age Factors, Bicuspid surgery, Child, Humans, Incisor pathology, Jaw Relation Record, Malocclusion, Angle Class II pathology, Mandible growth & development, Mandible pathology, Maxilla growth & development, Maxilla pathology, Molar surgery, Orthodontic Appliances, Patient Care Planning, Tooth Movement Techniques methods, Malocclusion, Angle Class II therapy, Serial Extraction
- Published
- 2001
39. The past, present, and future perfect profession.
- Author
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White LW
- Subjects
- Forecasting, History, 20th Century, Humans, Management Service Organizations, Marketing of Health Services, Orthodontics education, Orthodontics history, Orthodontics organization & administration, Orthodontics, Corrective history, Orthodontics, Corrective trends, Practice Management, Dental organization & administration, Practice Management, Dental trends, Technology, Dental, Orthodontics trends
- Published
- 2001
40. Plenty of room at the bottom.
- Author
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White LW
- Subjects
- Humans, Patient Credit and Collection, Fees, Dental, Orthodontics economics, Practice Management, Dental economics, Social Class
- Published
- 2001
41. Letting presumption outrun gumption.
- Author
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White LW
- Subjects
- Education, Dental, Ethics, Dental, Humans, Science education, Teaching methods, Attitude of Health Personnel, Dentists, Interprofessional Relations
- Published
- 2001
42. An expedited indirect bonding technique.
- Author
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White LW
- Subjects
- Dental Instruments, Humans, Dental Bonding instrumentation, Dental Bonding methods, Orthodontic Brackets, Resin Cements
- Published
- 2001
43. A précis of the Proceedings of the First International Orthodontic Editors' Symposium, 28 April 2000.
- Author
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Tuncay OC, Miethke RR, Takada K, Jones ML, Turpin DL, Miotti FA, Lee B, Park YG, Isaacson RJ, and White LW
- Subjects
- Evidence-Based Medicine, Internet, Peer Review, Research, Writing, Journalism, Dental, Orthodontics, Publishing
- Published
- 2000
- Full Text
- View/download PDF
44. Help yourself.
- Author
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White LW
- Subjects
- Dentist-Patient Relations, Humans, Orthodontics, Office Automation, Practice Management, Dental, Telephone
- Published
- 2000
45. A precis of the proceedings of the first international orthodontic editor's symposium.
- Author
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Tuncay OC, Miethke RR, Takada K, Jones ML, Turpin DL, Miotti FA, Lee B, Park YG, Isaacson RJ, and White LW
- Subjects
- Internet standards, Orthodontics, Periodicals as Topic standards, Publishing standards
- Published
- 2000
- Full Text
- View/download PDF
46. Koch goes to dental school.
- Author
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White LW
- Subjects
- Curriculum, Dental Research education, Humans, Microbiology education, Education, Dental, Science education
- Published
- 2000
47. Retention strategies: a pilgrim's progress.
- Author
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White LW
- Subjects
- Hot Temperature, Humans, Plastics, Tooth Bleaching methods, Orthodontic Appliance Design, Orthodontic Retainers
- Published
- 1999
48. A new and improved indirect bonding technique.
- Author
-
White LW
- Subjects
- Dental Bonding instrumentation, Hot Temperature, Humans, Models, Dental, Dental Bonding methods, Dental Cements, Orthodontic Brackets, Polyvinyls
- Published
- 1999
49. Clinical use of the Churro jumper.
- Author
-
Castañon R, Valdes MS, and White LW
- Subjects
- Adolescent, Adult, Cephalometry, Child, Female, Humans, Male, Orthodontic Appliance Design, Activator Appliances, Malocclusion therapy, Orthodontics, Corrective instrumentation
- Published
- 1998
50. Where are the assistants?
- Author
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White LW
- Subjects
- Humans, Orthodontics organization & administration, Salaries and Fringe Benefits, Dental Assistants supply & distribution, Personnel Selection, Practice Management, Dental economics
- Published
- 1998
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