نتایج جستجو برای: 226 ra and 228 ra

تعداد نتایج: 16833145  

Behzad Heidari, Parham Heidari,

  Background: Postmenopausal onset rheumatoid arthritis (post-RA) is expected to have greater bone mineral density (BMD) loss than premenopauasal onset (pre-RA) due to estrogen deficiency and aging. This study aimed to compare the BMD status of the two RA groups with age-matched non-RA controls.   Methods: The patients with RA on follow-up examination were stratified according to age of onset. ...

Behzad Heidari, Parham Heidari,

  Abstract   Background: Postmenopausal onset rheumatoid arthritis (post-RA) is expected to have greater bone mineral density (BMD) loss than premenopauasal onset (pre-RA) due to estrogen deficiency and aging. This study aimed to compare the BMD status of the two RA groups with age-matched non-RA controls.   Methods: The patients with RA on follow-up examination were stratified according to age...

Journal: :Journal of environmental radioactivity 2012
P P Povinec W C Burnett A Beck H Bokuniewicz M Charette M E Gonneea M Groening T Ishitobi E Kontar L Liong Wee Kwong D E P Marie W S Moore J A Oberdorfer R Peterson R Ramessur J Rapaglia T Stieglitz Z Top

Submarine groundwater discharge (SGD) into a shallow lagoon on the west coast of Mauritius Island (Flic-en-Flac) was investigated using radioactive ((3)H, (222)Rn, (223)Ra, (224)Ra, (226)Ra, (228)Ra) and stable ((2)H, (18)O) isotopes and nutrients. SGD intercomparison exercises were carried out to validate the various approaches used to measure SGD including radium and radon measurements, seepa...

ژورنال: فیض 2019

Background: Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease, which primarily affects the joints. During RA development, T cells and other immune cells are recruited to the synovial tissue and promote RA. Autophagy is a process in which intracellular organelles and compounds are degraded. Autophagy as a regulator of cell homeostasis can affect immune cells activation and c...

Journal: :Undergraduate Research in Natural and Clinical Science and Technology (URNCST) Journal 2018

Mahdi Ahangari Mohamad Reza Zare Reza Pourimani Rouhollah Gheisari,

The activity concentrations of 226Ra, 232Th, 40K and 137Cs in water and sediment samples from hot springs of Mahallat and  soil samples from their neighboring environs  have been determined using two high resolution high purity germanium (HPGe) detectors with relative efficiencies 38.5% and 55%. The activity concentrations of 226Ra, 23...

Journal: :IOP conference series 2023

Abstract The current research aims to evaluate the level of natural and industrial radioactive activity soil samples collected from city Shomali - Babil Governorate, by 13 with a depth 20 cm, where spectral analysis technique was used for high-purity germanium detector. Where it found that rate specific effectiveness each 226 Ra, 214 Pb, Bi, 232 Th, 212 228 Ac, 40 K, 60 Co in studied (28.4±3.47...

Objective: Previous studies have examined the role of sensory nerves and neural mediators in symmetrical joint inflammation and autoimmunity in rheumatoid arthritis (RA). In this study, we sought to examine the association between capsaicin skin test and disease activity in RA patients. Materials and Methods: Eighty RA patients (case group) and 20 healthy volunteers were enrolled in this experi...

B. Fouladi Dehaghi, J. Deris,

Background: Naturally occurring radioactivity is a root cause of human exposure to harmful radiation. The occupational exposure hazard due to natural radionuclides occurring in drilling wastes is especially important in this regard. In this study the concentration of radionuclides namely 232Th, 226Ra and 40K were assessed in soil samples that were taken from various oil drilling areas. Methodol...

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