A5063651817- Thyroid Cancer Diagnosis and Treatment
- Dental materials and restorations
- Radiation Dose and Imaging
- Dental Research and COVID-19
- Thyroid Disorders and Treatments
- Dental Implant Techniques and Outcomes
- Orthodontics and Dentofacial Orthopedics
- Radioactive contamination and transfer
- Fish Ecology and Management Studies
- Endodontics and Root Canal Treatments
- Dental Education, Practice, Research
- Effects of Radiation Exposure
- Dental Radiography and Imaging
- Quantum Information and Cryptography
- Dental Erosion and Treatment
- Dental Trauma and Treatments
- Radioactivity and Radon Measurements
- BRCA gene mutations in cancer
- Global Health Workforce Issues
- Healthcare Policy and Management
- Primary Care and Health Outcomes
- Atomic and Subatomic Physics Research
- Dental Health and Care Utilization
- Palliative Care and End-of-Life Issues
- Innovations in Medical Education
Columbia University Irving Medical Center
2010-2024
Columbia University
2008-2024
Massachusetts Institute of Technology
2015-2024
MIT Lincoln Laboratory
2015-2023
University College Cork
2010-2023
Cork University Hospital
2006-2023
University of Newcastle Australia
2023
North Tees and Hartlepool NHS Foundation Trust
2023
Health Education North West
2022
South Dakota Science and Technology Authority
2017
Background: The Chornobyl accident in 1986 exposed thousands of people to radioactive iodine isotopes, particularly 131 I; this exposure was followed by a large increase thyroid cancer among those as children and adolescents, Belarus, the Russian Federation, Ukraine. Here we report results first cohort study adolescents following accident. Methods: A 32 385 individuals younger than 18 years age resident most heavily contaminated areas Ukraine at time invited be screened for any pathology...
Current knowledge about Chornobyl-related thyroid cancer risks comes from ecological studies based on grouped doses, case-control studies, and of prevalent cancers.To address this limitation, we evaluated the dose-response relationship for incident cancers using measurement-based individual iodine-131 (I-131) dose estimates in a prospective analytic cohort study.The consists individuals < 18 years age 26 April 1986 who resided three contaminated oblasts (states) Ukraine underwent up to four...
Previous studies showed an increased risk of thyroid cancer among children and adolescents exposed to radioactive iodines released after the Chornobyl (Chernobyl) accident, but effects screening, iodine deficiency, age at exposure other factors on dose–response are poorly understood. We screened 11 970 individuals in Belarus aged 18 years or younger time accident who had estimated 131I doses based individual activity measurements dosimetric data from questionnaires. The excess odds ratio per...
To investigate the attitudes towards and use of rubber dam by Irish general dental practitioners.A pre-piloted questionnaire was distributed amongst a group 600 dentists randomly selected from Register Dentists. Replies working in specialist practice or hospital service were excluded. Dentists surveyed relation to their during variety operative root canal treatments, as well practice.A total 300 replies considered 324 that received. Seventy-seven per cent respondents (n=231) worked 23%...
Chornobyl Thyroid Diseases Study Group of Belarus, Ukraine, and the USA. A Cohort Cancer Other after Accident: Objectives, Design Methods. Radiat. Res. 161, 481–492 (2004).The thyroid gland in children is one organs that most sensitive to external exposure X γ rays. However, data on risk cancer radioactive iodines are sparse. The accident Ukraine 1986 led large populations iodines, particularly 131I. This paper describes an ongoing cohort study being conducted Belarus includes 25,161...
Thyroid dysfunction after exposure to low or moderate doses of radioactive iodine-131 (131I) at a young age is public health concern. However, quantitative data are sparse concerning 131I-related risk these common diseases.Our goal was assess the prevalence thyroid in association with 131I during childhood (≤ 18 years) due fallout from Chernobyl accident.We conducted cross-sectional analysis hypothyroidism, hyperthyroidism, autoimmune thyroiditis (AIT), serum concentrations...
Although radiation exposure is an important predictor of thyroid cancer on diagnosis a nodule, the relationship between childhood and nodules has not been comprehensively evaluated. To examine association internal I-131 dose in young adults exposed during childhood. In this cross-sectional study, we screened residents Belarus aged ≤18 years at time Chernobyl nuclear accident for disease (median age, 21 years) with palpation, ultrasonography, blood/urine analysis, medical follow-up when...
The aim of this paper is to review trends in the teaching posterior composites United States, Canada, Ireland, and Kingdom over last fifteen years. authors compared results surveys performed 1989, 1997, 2004–05. Historical contemporary international were investigated. amount clinical didactic has increased past From a time years ago, when very few dental students placed school, approximately one‐third plastic restorations by U.S., Irish, UK are now composite, with corresponding finding for...
The aim of this study was to investigate the current teaching posterior composite resin restorations undergraduate dental students in Ireland and United Kingdom (UK). investigation a follow-up survey undertaken 1997.A questionnaire distributed by e-mail Heads Departments Restorative Dentistry/Units Operative Dentistry each 15 schools with degree programmes UK. sought information relating school.Fifteen completed questionnaires were returned (response rate = 100%). All (n 15) taught placement...
Recent studies of children and adolescents who were exposed to radioactive iodine-131 (I-131) after the 1986 Chernobyl nuclear accident in Ukraine exhibited a significant dose-related increase risk thyroid cancer, but association radiation doses with tumor histologic morphologic features is not clear.A cohort 11,664 individuals Belarus aged ≤18 years at time underwent 3 cycles screening during 1997 2008. I-131 estimated from individual activity measurements taken within 2 months dosimetric...
The Chornobyl (Chernobyl) accident in 1986 exposed many individuals to radioactive iodines, chiefly (131)I, the effects of which on benign thyroid diseases are largely unknown. To investigate risk follicular adenoma relation radiation dose after Chornobyl, authors analyzed baseline data from a prospective screening cohort study those as children or adolescents. A stratified random sample was selected all who were younger than 18 years, had radioactivity measurements taken within 2 months...
There are limited data on the histopathology of papillary thyroid carcinomas (PTCs) diagnosed in irradiated populations. We evaluated associations between iodine-131 dose and histopathological characteristics post-Chernobyl PTCs, changes these over time, their with selected somatic mutations. This study included 115 PTCs a Ukrainian-American cohort (n=13 243) during prescreening four successive screenings. Of 65 were subjected to mutation profiling. All individuals <18 years at time...
Hypothyroidism is the most common thyroid abnormality in patients treated with high doses of iodine-131 (131I). Data on risk hypothyroidism from low to moderate 131I are limited and inconsistent.This study was conducted quantify prevalence relation received because Chornobyl accident.This a cross-sectional (1998-2000) screening diseases cohort 11,853 individuals < 18 years age at time accident, individual radioactivity measurements taken within 2 months accident. We measured...
Anomalous motional heating is a major obstacle to scalable quantum information processing with trapped ions. Although the source of this not yet understood, several previous studies suggest that noise due surface contaminants limiting mechanism in some instances. We demonstrate an improvement by factor 4 room-temperature rate niobium electrode trap situ plasma cleaning surface. This treatment was performed simple homebuilt coil assembly and commercially available matching network...
Abstract Background Ultrasound plays a critical role in evaluating thyroid nodules. We compared the performance of two most popular ultrasound malignancy risk stratification systems, 2015 American Thyroid Association (ATA) guidelines and College Radiology Imaging Reporting Data System (ACR TI-RADS). Materials Methods retrospectively identified 250 nodules that were surgically removed from 137 patients. Their images independently rated using both ATA ACR TI-RADS by six raters with expertise...