Willem de Boer

ORCID: 0000-0003-1823-7607
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About
Contact & Profiles
Research Areas
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Online and Blended Learning
  • Particle physics theoretical and experimental studies
  • High-Energy Particle Collisions Research
  • Health disparities and outcomes
  • Physical Activity and Health
  • Open Education and E-Learning
  • Respiratory Support and Mechanisms
  • Recreation, Leisure, Wilderness Management
  • Economic and Environmental Valuation
  • Obesity, Physical Activity, Diet
  • Non-Invasive Vital Sign Monitoring
  • Quantum Chromodynamics and Particle Interactions
  • Pulmonary Hypertension Research and Treatments
  • Sport and Mega-Event Impacts
  • Global Health Care Issues
  • Wildlife Ecology and Conservation
  • Conferences and Exhibitions Management
  • Experimental and Theoretical Physics Studies
  • Infrared Thermography in Medicine
  • Avian ecology and behavior
  • Sports Analytics and Performance
  • Estrogen and related hormone effects
  • Congenital Heart Disease Studies
  • Lung Cancer Diagnosis and Treatment

Wageningen University & Research
2022-2024

HAN University of Applied Sciences
2018-2024

University of Groningen
1982-2023

Education Endowment Foundation
2022

Karlsruhe Institute of Technology
1996-2021

Radboud University Medical Center
2019

Radboud University Nijmegen
2019

University Medical Center Groningen
2019

Jacobs (United States)
2019

Ecological Society of America
2019

Covid-19 and measures to contain spreading the disease have led changed physical activity behavior. This study aims investigate relationship between socioeconomic status (SES) changes in amount of moderate vigorous (MVPA) during crisis. Using Dutch Lifelines cohort (n = 17,749), MVPA was measured at 15 time-points March December 2020, compared with before Covid19 pandemic. For SES, population stratified three education income levels. Logistic regression models were used estimate odds ratio...

10.1016/j.ypmed.2021.106823 article EN cc-by Preventive Medicine 2021-10-06

Objectives. To identify disparities in several types of insured health care costs the Netherlands across neighborhoods with different socioeconomic statuses and to assess room for improvement. Methods. We used 2015 Dutch whole-population registry data estimate age- gender-specific cost structure by neighborhood total, specialist, pharmaceutical, mental care. Classifying quintile their status (NSES), we determined differences observed expected scenarios NSES Results. From low high NSES, found...

10.2105/ajph.2019.305035 article EN American Journal of Public Health 2019-04-18

This paper summarises the results of a major revision data underlying previous study Britain's productivity position in an international perspective (O'Mahony, 1999). Thus it examines record UK relative to US, France, and Germany. There have been number changes since original which necessitated rather than mere updating estimates. These included national accounts definitions value added include immaterial investments following adoption SNA93 by these countries, labour input revisions allow...

10.1177/002795010217900106 article EN National Institute Economic Review 2002-01-01

Activated microglia are found in a variety of neuroinflammatory disorders where they have attributed roles as effector well antigen-presenting cells (APC). Critical determinants for the multifaceted role differentiation potential and their mode activation. In this study, we investigated effects M-CSF GM-CSF-mediated adult primate on cellular phenotype, antigen presentation, phagocytic function Toll-like receptor (TLR)-mediated responses. We show that although cell morphology expression...

10.1002/glia.20572 article EN Glia 2007-09-06

Abstract Structured light plethysmography ( SLP ) is a noncontact, noninvasive, respiratory measurement technique, which uses structured pattern of and two cameras to track displacement the thoraco–abdominal wall during tidal breathing. The primary objective this study was examine agreement between breathing parameters measured simultaneously for 45 sec using pneumotachography in group 20 participants with range patterns (“primary cohort”). To repeatability agreement, an additional 21...

10.14814/phy2.13124 article EN cc-by Physiological Reports 2017-02-01

To estimate the price sensitivity of consumer choice health insurance firm.Using paneldata flows insured between pairs Dutch sickness funds during period 1993-2002, we these to differences in premium.The elasticity residual demand for was low confirming earlier findings based on annual changes market share. We find small but significant elasticities basic insignificant supplementary insurance. Young enrollees are more sensitive than older enrollees.Competition weak under study. For...

10.1007/s10754-008-9038-y article EN cc-by-nc International Journal of Health Care Finance and Economics 2008-08-16

Structured Light Plethysmography (SLP) is a novel non-invasive method that uses structured light to perform pulmonary function testing does not require physical contact with patient. The technique produces an estimate of chest wall volume changes over time. A patient observed continuously by two cameras and known pattern (i.e. light) projected onto the using off-the-shelf projector. Corner features from are extracted, tracked brought into correspondence for both camera views successive...

10.5244/c.24.85 article EN 2010-01-01

Using the contingent valuation method, we estimate residents’ ex ante and post willingness to pay (WTP) for hosting a large international sport event: The “big start” of 2016 Giro d’Italia, which was held in Gelderland region Netherlands. percentage residents with positive WTP changed from 29.7% before event 39.3% immediately after event, while average increased significantly €3.58 €4.45, leading an increase €5.8 million €7.1 million. Additionally, following media attending play important...

10.1177/1527002518771445 article EN cc-by-nc Journal of Sports Economics 2018-05-03

There is a strong socioeconomic gradient in health care costs. However, little known about the role of lifestyle factors association between costs and status (SES). This study investigates variation indicators within neighborhoods with similar SES.Using 2016 whole-population data for all 790 Netherlands, we estimated neighborhood average cost performance (i.e., adjusted population age gender) (NSES) four - smoking, alcohol consumption, exercise sport club membership. Additionally, using...

10.1016/j.ypmed.2019.105929 article EN cc-by-nc-nd Preventive Medicine 2019-11-25

Introduction Volunteering is a prominent and integral aspect of the activities undertaken by sports clubs in Europe. However, even with its growing importance, quantifying monetary worth this nonmarket activity, terms wellbeing, can present certain difficulties. Traditional approaches to valuing volunteering (i.e., replacement opportunity cost approaches) do not fully capture value individuals, as they consider intangible benefits that individuals may derive from their participation. Methods...

10.3389/fspor.2024.1308065 article EN cc-by Frontiers in Sports and Active Living 2024-02-02

Interpersonal Violence (IV) against children in sports is a prevalent problem and has major impact on their well-being. However, the causal relationship costs for society remain unclear.

10.1016/j.chiabu.2024.106719 article EN cc-by Child Abuse & Neglect 2024-03-08

Estrogen receptor-enriched fractions from cockerel and embryo liver cytosol were obtained by precipitation at 0–35% ammonium sulfate saturation. At low ionic strength conditions, the receptor sediments in sucrose density gradients mainly as an 8S entity. The receptor, however, 4.9S, unless inhibitor of thiol proteases, iodoacetate, is included isolation medium. Moreover, affinity for moxestrol doubled presence iodoacetate equals that (Kd = 1.4– 1.8 × 10-10 M). We conclude cathepsins cause...

10.1210/endo-110-4-1217 article EN Endocrinology 1982-04-01

Mass participation sporting events (MPSEs) are increasing in popularity. However, little research exists into the potential value of these for improving public health by enhancing physical activity (PA). The aim this study is to estimate impact increased as a result preparing an MPSE. Participants mass women-only running event were asked if they performed additional PA preparation event, including length (weeks) and intensity (min per week). Additionally, self-reported change status was...

10.3390/ijerph17010098 article EN International Journal of Environmental Research and Public Health 2019-12-21

This study examined the association of sport participation with health outcomes and whether this relation differs between body mass index (BMI)‐level subpopulations. Research for were compared other types leisure‐time physical activity (PA). We used Cox proportional hazards regression models to assess associations participation, four PA (cycling, gardening, doing odd jobs, walking), risk prediabetes, type 2 diabetes mellitus (T2DM), all‐cause mortality in 97,212 individuals (58.4% women;...

10.1111/sms.13940 article EN Scandinavian Journal of Medicine and Science in Sports 2021-02-20

Increasing urbanisation poses significant risks to organisms confronted with new and rapidly changing environments. Long-term exposure urban environments may involve changes in the immune system. A properly functioning system is essential for health maintenance, including prevention of infection, so identifying understanding links between immunological can offer insights into wildlife disease emergence. Here, we investigated relationship four innate defences nestling adult Eurasian...

10.2139/ssrn.4835394 preprint EN 2024-01-01

<h3>Aims</h3> The aim of the study was to evaluate tidal breathing patterns in healthy newborns using Structured Light Plethysmography (SLP), and compare relative contributions ribcage abdominal compartments measurements taken pre post feeding. opportunities non invasively measure neonatal lung function are limited. SLP is novel non-invasive method assessing chest-abdominal wall movement, with potential application a newborn infant population. <h3>Methods</h3> 17 new-born (7 male 10 female)...

10.1136/archdischild-2013-304107.171 article EN Archives of Disease in Childhood 2013-06-01

The human population is growing rapidly, increasing pressure on natural habitats. Suitable habitats for resident and migratory waterbirds are, therefore, more threatened. This study analyses how the presence of anthropogenic land cover (urban area cropland) multiple spatial scales affects community composition along Nile in Egypt. We analysed data collected during international waterbird census, 2017-2018, combined with from satellite images at a multi-spatial scale. census covered 970 km,...

10.22541/au.168725924.47904488/v1 preprint EN Authorea (Authorea) 2023-06-20
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