Results 1 to 10 of about 6,644,877 (248)

Sex-specific Estrogen Levels and Reference Intervals from Infancy to Late Adulthood Determined by LC-MS/MS.

open access: yesJ Clin Endocrinol Metab, 2020
Context The lack of sensitive and robust analytical methods has hindered the reliable quantification of estrogen metabolites in subjects with low concentrations.
Frederiksen H   +12 more
europepmc   +2 more sources

Establishment of reference levels in dental diagnostics

open access: yesOdontologia (Montevideo)
The initial process for establishing Diagnostic Reference Levels (DRLs) should focus on several key aspects: promoting a culture of safety, training personnel, assigning clear responsibilities, implementing tools and methods for dose assessment, and ensuring adequate regulation and funding by the competent regulatory authority.
U. M. Villarreal
openaire   +2 more sources

Comparison of thyroid hormones reference intervals based on thyroid antibody levels: A multicenter study. [PDF]

open access: yesPLoS ONE
ObjectivesThis study aimed to determine reference intervals (RI) for thyroid hormones based on thyroid antibody levels using different autoanalyzer kits.MethodsRI for Thyroid-stimulating hormone (TSH), free thyroxine (fT4) and free triiodothyronine (fT3)
Havva Beyter   +7 more
doaj   +3 more sources

Substantiation of a new approach to the criteria for assessing the radiation dose of patients during computed tomography [PDF]

open access: yesDigital Diagnostics, 2023
BACKGROUND: In accordance with the requirements of the IAEA basic safety standards and the International Commission on Radiation Protection, comparing the radiation dose for patients undergoing computed tomography (CT) in diagnostic and treatment clinics
Elena I. Matkevich   +2 more
doaj   +1 more source

Application of Reference Levels in the Existing Exposure Situations

open access: yesInsights Concerning the Fukushima Daiichi Nuclear Accident Vol. 1, 2021
Optimizing protection against radiation on the reference levels is important to restore the contaminated areas after an accident. Various steps, which are decided based on the contamination status, have to be performed to achieve normality by considering
H. Ogino, N. Hamada, D. Sugiyama
semanticscholar   +1 more source

Assessing reference levels of nickel and chromium in cord blood, maternal blood and placenta specimens from Ankara, Turkey

open access: yesJournal of the Turkish-German Gynecological Association, 2021
Objective: Placenta is a temporary organ that connects the developing fetus and the mother. However, it cannot protect the embryo against chromium (Cr) and nickel (Ni) exposure.
B. Yüksel, E. Arıca, T. Söylemezoğlu
semanticscholar   +1 more source

Gender-Dependent Reference Range of Serum Calcitonin Levels in Healthy Korean Adults [PDF]

open access: yesEndocrinology and Metabolism, 2021
Background Serum calcitonin measurement contains various clinical and methodological aspects. Its reference level is wide and unclear despite sensitive calcitonin kits are available.
Eyun Song   +8 more
doaj   +1 more source

A Reference Spectrum Model for Estimating Source Levels of Marine Shipping Based on Automated Identification System Data

open access: yesJournal of Marine Science and Engineering, 2021
Underwater sound mapping is increasingly being used as a tool for monitoring and managing noise pollution from shipping in the marine environment. Sound maps typically rely on tracking data from the Automated Information System (AIS), but information ...
Alexander O. MacGillivray, C. D. de Jong
semanticscholar   +1 more source

Urbanist workshops between theory and practice: The importance of spatial and programme reference levels in the planning method [PDF]

open access: yesIgra Ustvarjalnosti, 2013
One of the key characteristics of urban-architectural workshops as a soft planning method is above all the fact that the authors are free of burden of formal facts and reference levels of the local environment, which do not influence the concept and the ...
Gregor Čok
doaj   +1 more source

Review of regulatory reference values and background levels for heavy metals in the human diet.

open access: yesRegulatory toxicology and pharmacology : RTP, 2022
The U.S. Food and Drug Administration (US FDA) has identified dietary exposure to heavy metals as a public health concern, focusing particularly on arsenic, cadmium, lead, and mercury.
Candace Wong, S. Roberts, I. N. Saab
semanticscholar   +1 more source

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