David Nelson

ORCID: 0000-0003-1163-1222
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About
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Research Areas
  • Smoking Behavior and Cessation
  • Posttraumatic Stress Disorder Research
  • Opioid Use Disorder Treatment
  • Colorectal Cancer Screening and Detection
  • Healthcare professionals’ stress and burnout
  • Health Systems, Economic Evaluations, Quality of Life
  • Obesity, Physical Activity, Diet
  • Lung Cancer Diagnosis and Treatment
  • Healthcare Policy and Management
  • Primary Care and Health Outcomes
  • Migration, Health and Trauma
  • Musculoskeletal pain and rehabilitation
  • Global Cancer Incidence and Screening
  • Pain Management and Opioid Use
  • History and Theory of Mathematics
  • Contact Dermatitis and Allergies
  • Behavioral Health and Interventions
  • Mental Health Treatment and Access
  • Diversity and Career in Medicine
  • Global Health Workforce Issues
  • Lung Cancer Treatments and Mutations
  • IPv6, Mobility, Handover, Networks, Security
  • Medical Education and Admissions
  • Logic, programming, and type systems
  • Mobile Agent-Based Network Management

University of Minnesota Medical Center
2007-2025

University of Minnesota
2015-2025

Minneapolis VA Health Care System
2015-2025

Eli Lilly (United States)
2011-2024

Minneapolis VA Medical Center
2002-2024

The University of Texas Southwestern Medical Center
2013-2024

INTEGRIS Baptist Medical Center
2001-2023

Barlow Respiratory Hospital
2009-2023

Parkland Health & Hospital System
2021-2023

Patient-Centered Outcomes Research Institute
2023

Intussusception is a form of intestinal obstruction in which segment the bowel prolapses into more distal segment. Our investigation began on May 27, 1999, after nine cases infants who had intussusception receiving tetravalent rhesus–human reassortant rotavirus vaccine (RRV-TV) were reported to Vaccine Adverse Event Reporting System.

10.1056/nejm200102223440804 article EN New England Journal of Medicine 2001-02-22

Reliable estimates of the effectiveness influenza vaccine among persons 65 years age and older are important for informed vaccination policies programs. Short-term studies may provide misleading pictures long-term benefits, residual confounding have biased past results. This study examined in seniors over long term while addressing potential bias results.Data were pooled from 18 cohorts community-dwelling elderly members one U.S. health maintenance organization (HMO) 1990-1991 through...

10.1056/nejmoa070844 article EN New England Journal of Medicine 2007-10-03

The present note introduces a constructible interpretation for the logical connectives of number theory which is divergent from that intuitionists. Under intuitionistic interpretation, principle excluded middle and certain other classically acceptable principles logic must be rejected. while some classical may reinstated, principles, both intuitionistically, shown to invalid. Among these contradiction.

10.2307/2268973 article EN Journal of Symbolic Logic 1949-05-16

<h3>Background</h3> Long-term outcomes after acute kidney injury remain poorly defined. We determined the association between magnitude of creatinine increase cardiac surgery and risk incident chronic disease (CKD), CKD progression, death. <h3>Methods</h3> identified 29 388 individuals who underwent at Veterans Affairs hospitals November 1999 September 2005. The was defined by percent change from baseline to peak levels categorized as none (≤0%) or class I, (1%-24%), II (25%-49%), III...

10.1001/archinternmed.2010.514 article EN Archives of Internal Medicine 2011-02-14

The effect of disease management for chronic obstructive pulmonary (COPD) is not well established.To determine whether a simplified program reduces hospital admissions and emergency department (ED) visits due to COPD.We performed randomized, adjudicator-blinded, controlled, 1-year trial at five Veterans Affairs medical centers 743 patients with severe COPD one or more the following during previous year: admission ED visit COPD, home oxygen use, course systemic corticosteroids COPD. Control...

10.1164/rccm.200910-1579oc article EN American Journal of Respiratory and Critical Care Medicine 2010-01-15

Postpolypectomy bleeding is a rare but serious adverse event. The aim of this study was to identify factors associated with the risk severe delayed postpolypectomy bleeding.This case-control study, comparing cases who developed hematochezia and required medical evaluation 6 hours 14 days after colonoscopic polypectomy, control patients underwent polypectomy without bleeding, were selected in approximately 3 : 1 ratio. following specified priori: resuming anticoagulation (within week...

10.1055/s-2007-966959 article EN Endoscopy 2008-02-06

Physician implicit (unconscious, automatic) bias has been shown to contribute racial disparities in medical care. The impact of education on is unknown.To examine the association between change student towards African Americans and reports their experiences with 1) formal curricula related health care, cultural competence, and/or minority health; 2) informal including climate role model behavior; 3) amount favorability interracial contact during school.Prospective observational study...

10.1007/s11606-015-3447-7 article EN cc-by Journal of General Internal Medicine 2015-06-30

To examine the magnitude of explicit and implicit weight biases compared to against other groups; identify student factors predicting bias in a large national sample medical students.A web-based survey was completed by 4,732 1st year students from 49 schools as part longitudinal study education. The included validated measure bias, association test, 2 measures bias: feeling thermometer anti-fat attitudes test.A majority exhibited (74%) (67%) bias. Implicit scores were comparable reported...

10.1002/oby.20687 article EN cc-by-nc-nd Obesity 2013-12-23

A recent Institute of Medicine report concluded that lesbian and gay individuals face discrimination from health care providers called for research on provider attitudes. Medical school is a critical juncture improving future providers' treatment sexual minorities. This study examined both explicit bias implicit against women men among first-year medical students, focusing two predictors such bias, contact empathy.This included the 4,441 heterosexual students who participated in baseline...

10.1097/acm.0000000000000661 article EN Academic Medicine 2015-02-12

In 1949 Nelson [5] proposed a constructive logic in which falsity is conceived fashion analogous to that for intuitionistic truth. The predicate calculus N (for strong negation) was characterized by the usual axioms and rules positive connectives (see Kleene [4, p. 82, la–7 9–12]), with additional axiom schemata negation: A ⊃ (¬A B), Nelson's paper showed may be interpreted concepts truth ( P -realizability) -realizability). also gave mappings between negation systems of arithmetic. These...

10.2307/2274105 article EN Journal of Symbolic Logic 1984-03-01

To investigate sex and menstrual cycle effects in response to cocaine administration, data from existing studies were analyzed. First, responses a single delivery of 0.4 mg/kg smoked investigated. Women reported lower ratings for measures paranoid/suspicious heart racing/pounding than did men. In addition, women the luteal phase diminished measure feel high both follicular Second, up 6 deliveries Women, compared with men, had on high, racing/pounding, stimulated. Results suggest that there...

10.1037/1064-1297.7.3.274 article EN Experimental and Clinical Psychopharmacology 1999-01-01

Abstract The authors examined psychiatric diagnoses in administrative records for 13,201 United States military veterans who were screened traumatic brain injury (TBI) Department of Veterans Affairs facilities. Over 80% the with positive TBI screens had diagnoses. Compared to negative screens, those but without confirmed status, three times more likely have a posttraumatic stress disorder (PTSD) diagnosis and two depression substance‐related Among clinically status than PTSD, anxiety,...

10.1002/jts.20483 article EN Journal of Traumatic Stress 2010-02-01

Objective: To determine whether diagnosis and bedside observations predict outcomes of patients who have declined intubation but accept noninvasive positive pressure ventilation (NPPV) to treat their respiratory failure. Design: Prospective multiple-center cohort trial. Setting: Two teaching hospitals two community-based in southeastern New England from January through October 1999. Patients: All receiving NPPV for acute failure were screened enrolled if they had a written do-not-intubate...

10.1097/01.ccm.0000142729.07050.c9 article EN Critical Care Medicine 2004-10-01

We sought to determine if human papillomavirus (HPV) infection of extravillous trophoblast cells reduces cell invasion and placental is associated with adverse reproductive outcomes attributed dysfunction.We conducted apoptosis assays using (HTR-8/SVneo) that were transfected a plasmid (pAT-HPV-16) containing the entire HPV-16 genome. In order associate HPV outcomes, we case-control study detect DNA in region placentas from cases spontaneous preterm delivery, severe pre-eclampsia requiring...

10.1093/humrep/dem404 article EN Human Reproduction 2008-01-10

Objective: Fear of jeopardizing drinking outcomes has resulted in a reluctance to treat tobacco dependence concurrently with alcohol dependence, spite the high prevalence smoking among patients dependence. The objective this study was compare effects treatment and intensive for delivered concurrently, delayed on use. Method: For study, 1,943 or abuse were screened participation. Of these, 499 smokers enrolled randomized concurrent (during treatment) (6 months later) intervention....

10.15288/jsa.2004.65.681 article EN Journal of Studies on Alcohol 2004-11-01

An ongoing surveillance program was intensified to determine whether an increased risk of acquiring vaccine-related Guillain-Barré syndrome (GBS) (similar that observed after vaccination with the A/New Jersey swine-influenza vaccine in 1976) existed for approximately 12.5 million adults (≥18 years old) vaccinated 1978–1979 influenza campaign. In contiguous United States (excluding Maryland) 544 cases GBS onset between September 1, 1978, and March 31, 1979, were reported, including 12 who had...

10.1056/nejm198106253042601 article EN New England Journal of Medicine 1981-06-25

We measured the prevalence of stigma, self-blame, and perceived blame from others for their illness among men with colorectal cancer (CRC) examined whether these factors were associated depressive symptoms, independent clinical sociodemographic factors.Self-administered questionnaires returned in fall 2009 by 1109 eligible male US veterans who diagnosed CRC at any Veterans Affairs facility 2008. Questionnaires assessed feelings blame, symptoms as well other facets health, characteristics,...

10.1002/pon.2048 article EN Psycho-Oncology 2011-09-26

There is a paucity of evidence on how to train medical students provide equitable, high quality care racial and ethnic minority patients. We test the hypothesis that schools' ability foster learning orientation toward interracial interactions (i.e., can improve their successfully interact with people another race learn from mistakes), will contribute white students' readiness for then who perceive school environment as supporting benefit more disparities training.Prospective observational...

10.1186/s12909-016-0769-z article EN cc-by BMC Medical Education 2016-09-28

Web-augmented traditional lecture, fully online, and flipped sections, all taught by the same instructor with course schedule, assignments, exams in semester, were compared regards to student attitudes; statistical reasoning; performance on common exams, homework, projects; perceptions of instructor. The Survey Attitudes Toward Statistics-36 (SATS-36) instrument eight questions from Statistical Reasoning Assessment (SRA) given both at beginning end semester measure change. students selected...

10.1080/10691898.2015.11889723 article EN cc-by-nc Journal of Statistics Education 2015-03-01
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