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Artykuły w czasopismach na temat „X-ray indicators”

Autor: Grafiati
Data publikacji: 2 czerwca 2025
Data aktualizacji: 31 lipca 2025

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1

Kim, Myung-Good, Rong-Min Baek, Kyung-Won Minn, Chan Yeong Heo, Soon-Sung Kwon, and Chan-Young Park. "Nasal Packs With X-ray Indicators." Annals of Plastic Surgery 56, no. 3 (2006): 342–43. http://dx.doi.org/10.1097/01.sap.0000196947.58929.51.

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Weiss, Manfred S. "Global indicators of X-ray data quality." Journal of Applied Crystallography 34, no. 2 (2001): 130–35. http://dx.doi.org/10.1107/s0021889800018227.

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Global indicators of the quality of diffraction data are presented and discussed, and are evaluated in terms of their performance with respect to various tasks. Based on the results obtained, it is suggested that some of the conventional indicators still in use in the crystallographic community should be abandoned, such as the nominal resolutiondminor the mergingRfactorRmerge, and replaced by more objective and more meaningful numbers, such as the effective optical resolutiondeff,optand the redundancy-independent mergingRfactorRr.i.m.. Furthermore, it is recommended that the precision-indicati
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3

Różańska, A., K. Bresler, B. Bełdycki, J. Madej, and T. P. Adhikari. "Ultraluminous X-ray sources: new distance indicators?" Astronomy & Astrophysics 612 (April 2018): L12. http://dx.doi.org/10.1051/0004-6361/201832864.

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Aims. In this paper we fit the NuSTAR and XMM-Newton data of three sources: NGC 7793 P13, NGC5907 ULX1, and Circinus ULX5. Methods. Our single model contains emission from a non-spherical system: a neutron star plus an accretion disk directed towards the observer. Results. We obtained a very good fit with the reduced χ2 per degree of freedom equal to 1.08 for P13, 1.01 for ULX1, and 1.14 for ULX5. The normalization of our model constrains the distance to the source. The resulting distances are D = 3.41−0.10+0.11, 6.55−0.81+0.69, and 2.60−0.03+0.05 Mpc for P13, ULX1, and ULX5 respectively. The
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Weiss, M. S., and R. Hilgenfeld. "Global Indicators of X-ray Data Quality." Acta Crystallographica Section A Foundations of Crystallography 56, s1 (2000): s105. http://dx.doi.org/10.1107/s0108767300022789.

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Konstantakopoulou, Eleni, Annalaura Casanova Municchia, Roberto Ferretti, Simone Porcinai, and Marco Ferretti. "Performance indicators for portable X-ray fluorescence devices." Acta IMEKO 14, no. 1 (2025): 1–6. https://doi.org/10.21014/actaimeko.v14i1.1864.

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The invention of hand-held X-ray fluorescence devices (HH-XRF) has revolutionized the way we analyse ancient materials. These devices are equipped with highly miniaturized hardware and advanced software, which encourages users to consider them as black boxes. This enables archaeologists, art historians, and restorers to be self-sufficient in performing materials analysis. However, there are specific situations, such as the investigation of copper-based artefacts, where users need to have a deeper understanding of the device's functioning. This article discusses the experiments carried out to r
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Kassim, Namir E., Paul Hertz, Schuyler D. van Dyk, and Kurt W. Weiler. "X-ray observations of supernova remnants as distance indicators." Astrophysical Journal 427 (June 1994): L95. http://dx.doi.org/10.1086/187373.

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Pooley, D., and S. Rappaport. "X-Ray and Optical Eclipses in Ultraluminous X-Ray Sources as Possible Indicators of Black Hole Mass." Astrophysical Journal 634, no. 1 (2005): L85—L88. http://dx.doi.org/10.1086/498613.

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Rahin, Roi, and Ehud Behar. "Canonical X-Ray Fluorescence Line Intensities as Column Density Indicators." Astrophysical Journal 904, no. 1 (2020): 40. http://dx.doi.org/10.3847/1538-4357/abbb2f.

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Mendoza, A., R. Cesareo, M. Valdés, J. J. Meitín, R. Pérez, and Y. Lorente. "Energy dispersive X-ray fluorescence analysis of marine pollution indicators." Journal of Radioanalytical and Nuclear Chemistry 240, no. 2 (1999): 459–65. http://dx.doi.org/10.1007/bf02349396.

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Tomashevsky, I. O., and O. S. Kornikova. "The Importance of Radiation Methods in the Diagnosis of Coronary Heart Disease in a Specific Patient." MEDICAL RADIOLOGY AND RADIATION SAFETY 69, no. 2 (2024): 49–52. http://dx.doi.org/10.33266/1024-6177-2024-69-2-49-52.

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Purpose: Demonstrate a clinical observation in which to establish a diagnosis it was necessary to use eight methods for diagnosing coronary pathology, four of which are radiation. Material and methods: To establish a diagnosis in a cardiac patient with suspected coronary heart disease (CHD), post-infarction cardiosclerosis, echocardiography (ECG), Holter monitoring (HM), bicycle ergometry (VE), X-ray computed tomography (X-ray computed tomography) to determine calcification of the coronary arteries, single-photon selective computer tomography (SPECT), magnetic resonance computed tomography (MR
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11

Casas, Madeline C., Ky Putnam, Adam B. Mantz, Steven W. Allen, and Taweewat Somboonpanyakul. "Optical Photometric Indicators of Galaxy Cluster Relaxation." Astrophysical Journal 967, no. 1 (2024): 14. http://dx.doi.org/10.3847/1538-4357/ad41de.

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Abstract The most dynamically relaxed clusters of galaxies play a special role in cosmological studies as well as astrophysical studies of the intracluster medium (ICM) and active galactic nucleus feedback. While high-spatial-resolution imaging of the morphology of the ICM has long been the gold standard for establishing a cluster’s dynamical state, such data are not available from current or planned surveys, and thus require separate, pointed follow-up observations. With optical and/or near-IR photometric imaging, and red-sequence cluster finding results from those data, expected to be ubiqui
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12

Bai, Jun, Xingzhen Hu, Tao Tan, et al. "The Evaluation Indicators of X-ray Radiographs for Femoroacetabular Impingement Syndrome." Journal of Medical Imaging and Health Informatics 11, no. 2 (2021): 557–62. http://dx.doi.org/10.1166/jmihi.2021.3320.

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Objective: To explore the evaluation indicators of X-ray radiographs for femoroacetabular impingement (FAI) syndrome, and to propose therapeutic plans for FAI syndrome by using X-ray radiographs. Methods: From June 2016 to May 2018, patients who were diagnosed as FAI syndrome by hip joint anteroposterior radiographs in Second Yinzhou District Hospital were selected as research objects. After screening, the surgical treatment group included 52 cases, totally. Another 30 healthy adults who received X-ray radiography were included as the control group. Each included patient underwent minimally in
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13

Poppenhaeger, Katja, and Jürgen H. M. M. Schmitt. "Soft X-ray emission as diagnostics for Maunder minimum stars." Proceedings of the International Astronomical Union 7, S286 (2011): 346–49. http://dx.doi.org/10.1017/s1743921312005078.

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AbstractThe identification of stars in a Maunder minimum state purely from their chromospheric emission (for example in Ca II lines) has proven to be difficult. Photospheric contributions, metallicities and possible deviations from the main sequence stage may lead to very low values of the traditional chromospheric activity indicators, while no Maunder minimum state may be present. X-ray observations can be a key tool for identifying possible Maunder minimum stars: We have detected very soft X-ray emission from low-temperature coronal plasma, similar to emission from solar coronal holes, in se
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14

Pizzocaro, D., B. Stelzer, E. Poretti, et al. "Activity and rotation of the X-ray emitting Kepler stars." Astronomy & Astrophysics 628 (August 2019): A41. http://dx.doi.org/10.1051/0004-6361/201731674.

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The relation between magnetic activity and rotation in late-type stars provides fundamental information on stellar dynamos and angular momentum evolution. Rotation-activity studies found in the literature suffer from inhomogeneity in the measurement of activity indexes and rotation periods. We overcome this limitation with a study of the X-ray emitting, late-type main-sequence stars observed by XMM-Newton and Kepler. We measured rotation periods from photometric variability in Kepler light curves. As activity indicators, we adopted the X-ray luminosity, the number frequency of white-light flar
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15

Maeda, Keiichi, Yukikatsu Terada, and Aya Bamba. "Expected Hard X-Ray and Soft Gamma-Ray from Supernovae." Acta Polytechnica CTU Proceedings 1, no. 1 (2014): 205–9. http://dx.doi.org/10.14311/app.2014.01.0205.

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High energy emissions from supernovae (SNe), originated from newly formed radioactive species, provide direct evidence of nucleosynthesis at SN explosions. However, observational diculties in the MeV range have so far allowed the signal detected only from the extremely nearby core-collapse SN 1987A. No solid detection has been reported for thermonuclear SNe Ia, despite the importance of the direct conrmation of the formation of <sup>56</sup>Ni, which is believed to be a key ingredient in their nature as distance indicators. In this paper, we show that the new generation hard X-ray
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16

Dainotti, M. G., V. Nielson, G. Sarracino, et al. "Optical and X-ray GRB Fundamental Planes as cosmological distance indicators." Monthly Notices of the Royal Astronomical Society 514, no. 2 (2022): 1828–56. http://dx.doi.org/10.1093/mnras/stac1141.

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ABSTRACT Gamma-ray bursts (GRBs), can be employed as standardized candles, extending the distance ladder beyond Type Ia supernovae (SNe Ia, z = 2.26). We standardize GRBs using the three-dimensional (3D) Fundamental Plane relation (the Dainotti relation) among the rest-frame end time of the X-ray plateau emission, its corresponding luminosity, and the peak prompt luminosity. Combining SNe Ia and GRBs, we constrain ΩM = 0.299 ± 0.009 assuming a flat Λ cold dark matter (ΛCDM) cosmology with and without correcting GRBs for selection biases and redshift evolution. Using a 3D optical Dainotti corre
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17

Razmukhamedov, D., L. Pulatova, and S. Aripov. "ASSESSMENT OF BASALT FIBER CONCRETE HEAT RESISTANCE INDICATORS AT FIRE AND TECHNICAL EXPERTISE." Scientific heritage, no. 109 (March 20, 2023): 77–86. https://doi.org/10.5281/zenodo.7752762.

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The article explores the possibility of practical application of X-ray diffraction and thermal analysis methods in the study of concrete composites in the course of fire-technical expertise. The data of X-ray diffraction analysis of basalt-fibroconcrete and steel-fibroconcrete samples were determined taking into account various modes of obtaining materials, Miller indices and crystal lattice parameters were established. The indicators of physicochemical properties of the studied concrete compositions in the process of temperature effects using thermal analysis methods are given.
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18

Druzhinin, V. N., V. G. Suvorov, A. N. Cherny, S. N. Troynakov, and U. T. Tukhtaev. "X-ray densitometric aspects of diagnosis of ulnar epicondylitis." Russian Journal of Occupational Health and Industrial Ecology, no. 1 (January 31, 2020): 19–24. http://dx.doi.org/10.31089/1026-9428-2020-60-1-19-24.

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Introduction. Timely and adequate diagnosis and treatment of degenerative-dystrophic diseases of the bone and joint apparatus, which include epicondylitis (epicondylosis), including professionally caused, continues to be a serious health problem today, since they cause significant economic damage associated with temporary and persistent disability of the active part of the world’s population. In this regard, the search for methods and methodological approaches to improve the radiation diagnosis of this disease remains relevant. The study is devoted to solution of important medical problems, in
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19

Kostov-Kytin, Vladislav, Aleksandar Nikolov, and Gergana Velyanova. "Application of hand-held X-ray fluorescence analyzer for studying of marl raw materials under field conditions." Review of the Bulgarian Geological Society 85, no. 3 (2024): 109–12. https://doi.org/10.52215/rev.bgs.2024.85.3.109.

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Possible approaches in the application of a hand-held X-ray fluorescence analyzer for the study of marl raw materials have been demonstrated. Chemical indicators relating the chemical and phase compositions of the studied objects are derived. This has been done on the basis of an analysis of preliminary laboratory investigation results (chemical analyzes and powder X-ray diffraction) of marl and clay samples of varying ratios of their constituents – clayey, carbonate and possibly terrigenous. Such indicators allow rapid collection of relatively reliable data in the study of marl raw materials
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20

Berezin, I. I., S. S. Somov, K. V. Yakusheva, et al. "Radiation safety and control in dental medical organizations." Terapevt (General Physician), no. 6 (June 21, 2023): 46–54. http://dx.doi.org/10.33920/med-12-2306-06.

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The authors analyzed the indicators of radiation exposure of dental medical workers of the Samara Region during medical procedures for the period from 2004 to 2019 in comparison with the quantitative dynamics of X-ray diagnostic studies. The main directions for improving the labor conditions of dental medical professionals when working with X-ray diagnostic equipment are de termined. The purpose of the study is to conduct a comparative analysis of indicators of the radiation exposure of dental medical workers of the Samara Region during medical procedures for the period from 2004 to 2019 in o
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21

Berezin, Igor Ivanovich, Sergey Sergeevich Somov, Kseniya Vladimirovna Yakusheva, Andrey Sergeevich Gorobets, and A. K. Sergeev. "Ensuring radiation safety in medical institutions of the dental profile." Sanitarnyj vrač (Sanitary Doctor), no. 6 (May 26, 2022): 432–39. http://dx.doi.org/10.33920/med-08-2206-06.

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The analysis of indicators of radiation exposure of medical workers of the dental profile of the Samara region during medical procedures for the period from 2004 to 2019 is carried out in comparison with the quantitative dynamics of X-ray diagnostic studies. The main directions of occupational safety indicators of medical workers of the dental profile when working with X-ray diagnostic equipment have been determined. The purpose was to conduct a comparative analysis of the radiation exposure indicators of medical workers of the dental profile of the Samara region during medical procedures for
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22

Ikromov, Khayotjon Ulugbekovich Pulatov Ulugbek Sunatovich. "RHEUMATOID ARTHRITIS AND X-RAY PICTURE." INTERNATIONAL BULLETIN OF MEDICAL SCIENCES AND CLINICAL RESEARCH 3, no. 6 (2023): 148–54. https://doi.org/10.5281/zenodo.8045829.

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Purpose of work - determination of the level of radiological imaging and clinical-laboratory indicators in patients with rheumatoid arthritis depending on the haptoglobin system of different phenotypes.The study was conducted on 214 patients diagnosed with rheumatoid arthritis who were treated in the medical association during 2018-2021. The study used general clinical, medico-social, hematological, biochemical, immunological, instrumental and statistical research methods. All patients with RA according to hematological parameters were divided into 2 groups: 50 (23.4%) patients without anemia,
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Druzhinin, Valentin N., Vadim G. Suvorov, Nikolay V. Druzhinin, Aleksandr N. Cherniyi, and Sergey N. Troynyakov. "X-ray computer densitometry in the diagnosis of fat hepatosis." Russian Journal of Occupational Health and Industrial Ecology 60, no. 10 (2020): 681–86. http://dx.doi.org/10.31089/1026-9428-2020-60-10-681-686.

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Currently, the problem of reducing the risk of developing fat liver hepatosis from exposure to household and industrial toxicants among the working-age population continues to be an important medical and social problem, since not timely diagnosis of the disease can lead to its progressive course with the development of inflammatory changes, necrosis and liver fibrosis up to cirrhosis and hepatocellular cancer. In this regard, the search for methods and techniques that optimize the diagnosis of fat hepatosis is relevant. Modern methods of radiation diagnostics of liver density characteristics c
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Harvey, Max, Cameron B. Rulten, and Paula M. Chadwick. "The Galactic high mass X-ray binary population with Fermi-LAT." Monthly Notices of the Royal Astronomical Society 512, no. 1 (2022): 1141–68. http://dx.doi.org/10.1093/mnras/stac375.

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ABSTRACT We search for γ-ray emission from 114 Galactic high-mass X-ray binaries, including four well studied catalogued sources, in 12.5 yr of Fermi-LAT data in conjunction with the 10-yr point source catalogue. Where a γ-ray excess appears to be spatially coincident with an X-ray binary, further investigation is performed to ascertain whether this excess is the product of physical processes within the binary system itself. We identify γ-ray excesses coincident with 20 high-mass X-ray binaries where there is little or no prior evidence for γ-ray emission. However, we find that many of these a
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Rosales Varo, A. P., N. Prados Olleta, R. Rosales Molina, F. Santana Pérez, and M. Á. García Espona. "Rehabilitation-related variability in the x-ray indicators of intrinsic patellofemoral pathology." Revista Española de Cirugía Ortopédica y Traumatología (English Edition) 52, no. 4 (2008): 219–23. http://dx.doi.org/10.1016/s1988-8856(08)70099-3.

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Crandall, Sara, and Graeme H. Smith. "Correlations in Chromospheric and Coronal Activity Indicators of Giant Stars." Astronomical Journal 165, no. 2 (2023): 70. http://dx.doi.org/10.3847/1538-3881/aca150.

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Abstract The main goal of this paper is to use ultraviolet photometry from the Galaxy Evolution Explorer (GALEX) satellite to study chromospheric activity among red giant and core-helium-burning (CHeB) stars. Correlations are sought between several chromospheric and coronal activity indicators for giants that were detected in soft X-rays by the ROentgen SATellite. There is an evident correlation between log ( L X / L bol ) and log ( F Mg II / F bol ) , where L X is the X-ray luminosity and F Mg II is the flux from Mg ii h and k emission lines, although there is substantial scatter. Using GALEX
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Aghazada, А. R. "RESULTS OF STUDIES OF COMPUTED TOMOGRAPHY IN PLANNING DENTAL IMPLANTATION IN PATIENTS WITH ADENTIA." "The Medicine and Science" scientific-practical journal named after A.Aliyev 4, no. 30 (2023): 56–62. http://dx.doi.org/10.61775/2413-3302.v4i30.08.

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Computed tomography is an accurate study of determining bone density at the site of the proposed implantation. Local bone density has a predominant influence on the primary stability of the implant, which is an important factor for the success of the treatment. On the basis of indicators of dual-energy X-ray absorptiometry, the relationship between the state of the skeletal system and the coefficient of absorption of jaw density - indicators on the Hounsfield scale was studied. There is a directly proportional relationship between the data of densitometry of double X-ray absorptiometry of the
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Багаев and Kirill Bagaev. "Again about Automation of Digital X-Ray Image Interpretation." NDT World 18, no. 3 (2015): 48–52. http://dx.doi.org/10.12737/12571.

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Introduction. This article is dedicated to a possible approach to automatic inspection of welded joints X-Ray images. This problem is very urgent but there is no established practice of the automated X-Ray images inspection and image objects recognition. The purpose of the article was to highlight the tasks included in the X-Ray interpretation process that can be automated, and to offer possible solutions. 
 Method. Analysis and interpretation of images were made using "X-Vizor" software by “Newcom-NDT”.
 Results. Studies have shown that the straight and elliptical se
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Rivera, Angelica B., Gordon T. Richards, Sarah C. Gallagher, et al. "Exploring Changes in Quasar Spectral Energy Distributions across C iv Parameter Space." Astrophysical Journal 931, no. 2 (2022): 154. http://dx.doi.org/10.3847/1538-4357/ac6a5d.

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Abstract We examine the UV/X-ray properties of 1378 quasars in order to link empirical correlations to theoretical models of the physical mechanisms dominating quasars as a function of mass and accretion rate. The clarity of these correlations is improved when (1) using C iv broad emission line equivalent width (EQW) and blueshift (relative to systemic) values calculated from high signal-to-noise ratio reconstructions of optical/UV spectra and (2) removing quasars expected to be absorbed based on their UV/X-ray spectral slopes. In addition to using the traditional C iv parameter space measures
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Uzair, Unaiza, Chloe Johnson, Shayesteh Beladi-Behbahani, et al. "Conformal Coating of Orthopedic Plates with X-ray Scintillators and pH Indicators for X-ray Excited Luminescence Chemical Imaging through Tissue." ACS Applied Materials & Interfaces 12, no. 47 (2020): 52343–53. http://dx.doi.org/10.1021/acsami.0c13707.

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Kouroumpatzakis, K., A. Zezas, P. Sell, et al. "Sub-galactic scaling relations between X-ray luminosity, star formation rate, and stellar mass." Monthly Notices of the Royal Astronomical Society 494, no. 4 (2020): 5967–84. http://dx.doi.org/10.1093/mnras/staa1063.

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ABSTRACT X-ray luminosity (LX) originating from high-mass X-ray binaries (HMXBs) is tightly correlated with the host galaxy’s star formation rate (SFR). We explore this connection at sub-galactic scales spanning ∼7 dex in SFR and ∼8 dex in specific SFR (sSFR). There is good agreement with established relations down to SFR ≃ 10−3 M$_{\odot }\, \rm {yr^{-1}}$, below which an excess of X-ray luminosity emerges. This excess likely arises from low-mass X-ray binaries. The intrinsic scatter of the LX–SFR relation is constant, not correlated with SFR. Different star formation indicators scale with LX
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Doskina, E. V., and A. S. Ametov. "Information content and comparability of data for X-ray absorptiometry and dual-energy X-ray absorptiometry and bone densitometry by radiofrequency echographic multti-spectrometry in patients with diabetes and osteoporosis." Therapist’s Bulletin 65, no. 4 (2024): 42–51. https://doi.org/10.31550/2712-8601-vt-2024-4-6.

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Osteoporosis occupies a leading position in terms of prevalence among non-communicable diseases worldwide. An important task is timely and accurate diagnosis and monitoring of the state of bone mineral density. The gold standard is considered X-ray absorptiometry and dual- energy X-ray absorptiometry (DEXA). With the advent of newpromisingmethods, the issueofcomparability of the results of thesestudiesbecomesrelevant. Aim. To evaluate the comparability of the main indicators of bone mineral density in patients with diabetes mellitus and osteoporosis according results of X-ray absorptiometry an
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Muri, Harald Ian D. I., and Dag Roar Hjelme. "Sensor Technology Options for Municipal Solid Waste Characterization for Optimal Operation of Waste-to-Energy Plants." Energies 15, no. 3 (2022): 1105. http://dx.doi.org/10.3390/en15031105.

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Reuse, refurbishing, and recycling are the most sustainable options for handling waste materials. However, for municipal solid waste (MSW) that is highly heterogenic, crude, contaminated, and decrepit, thermal conversion in waste-to-energy (WtE) plants is an option. In such plants, the fuel quality of MSW is difficult to predict and the substantial changes expected are challenging for incineration stability. Development of new online sensor technologies for monitoring waste properties prior to incineration is therefore needed. Sensors may contribute to increase WtE process stability, as well a
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Sharmazanova, Olena, Lyliya Аveryanova, and Tetiana Arsenіdze. "The indicators of femur mineral density according to x-ray densitometry in infants." ScienceRise: Medical Science, no. 8 (16) (August 31, 2017): 4–10. http://dx.doi.org/10.15587/2519-4798.2017.109299.

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Tsypin, E. F., N. A. Efremova, D. B. Elizarov, and T. Iu Ovchinnikova. "CONNECTION BETWEEN X-RAY RADIOMETRIC SEPARATION INDICATORS AND THE SIZE OF SORTED FRACTIONS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII GORNYI ZHURNAL 6 (2018): 77–84. http://dx.doi.org/10.21440/0536-1028-2018-6-77-84.

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Park, Jong-Han, and Su-Hyeon Jeong. "Study on Correlation between the Gait Analysis Indices and Lumbar X-ray Indicators." Journal of Korean Medicine Rehabilitation 27, no. 4 (2017): 121–30. http://dx.doi.org/10.18325/jkmr.2017.27.4.121.

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Vinciguerra, Serena, Coenraad J. Neijssel, Alejandro Vigna-Gómez, et al. "Be X-ray binaries in the SMC as indicators of mass-transfer efficiency." Monthly Notices of the Royal Astronomical Society 498, no. 4 (2020): 4705–20. http://dx.doi.org/10.1093/mnras/staa2177.

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ABSTRACT Be X-ray binaries (BeXRBs) consist of rapidly rotating Be stars with neutron star (NS) companions accreting from the circumstellar emission disc. We compare the observed population of BeXRBs in the Small Magellanic Cloud (SMC) with simulated populations of BeXRB-like systems produced with the compas population synthesis code. We focus on the apparently higher minimal mass of Be stars in BeXRBs than in the Be population at large. Assuming that BeXRBs experienced only dynamically stable mass transfer, their mass distribution suggests that at least $\sim 30{{\ \rm per\ cent}}$ of the mas
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38

Kouroumpatzakis, K., A. Zezas, P. H. Sell, P. Bonfini, M. L. N. Ashby, and S. P. Willner. "Probing the building blocks of galaxies: Sub-galactic scaling relations between X-ray luminosity, SFR and stellar mass." Proceedings of the International Astronomical Union 15, S341 (2019): 162–66. http://dx.doi.org/10.1017/s1743921319002539.

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AbstractIt is well known that X-ray luminosity (Lx) originating from high mass X-ray binaries (HMXBs) is tightly correlated with the host galaxy’s star formation rate (SFR). We explore this connection using a sample representative of the star-formation activity in the local Universe (Star-Formation Reference Survey; SFRS) along with a comprehensive set of star-formation (radio, FIR, 24μm, 8 μm, Hα, UV, SED fitting) and stellar mass (K-band, 3.6 μm, SED fitting) indicators, and Chandra observations. We investigate the Lx–SFR and Lx– stellar mass (M*) scaling relations down to sub-galactic scale
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39

Chen, Yuan, Tianyu Ren, Sarah Bramlitt, and W. Rudolf Seitz. "Silica covered stannic oxide nanoparticles—an easily prepared robust substrate for optical sensors." Nanotechnology 33, no. 10 (2021): 105704. http://dx.doi.org/10.1088/1361-6528/ac3ce3.

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Abstract This paper describes a facile way to prepare a photophysically inert sensor substrate. Stannic oxide encapsulated silica nanoparticles with average diameters between 30 and 70 nm have been prepared by one-pot reverse-phase emulsion methodology. The constituents and core/shell morphology of the nanoparticles were demonstrated by electron microscopic technology, energy-dispersive x-ray spectroscopy, and x-ray photoelectron spectroscopy. X-ray diffraction was employed to provide additional constitutional and structural information. It has been shown that nanoparticles prepared by this me
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40

Flaccomio, E., F. Damiani, G. Micela, et al. "ChandraX‐Ray Observation of the Orion Nebula Cluster. II. Relationship between X‐Ray Activity Indicators and Stellar Parameters." Astrophysical Journal 582, no. 1 (2003): 398–409. http://dx.doi.org/10.1086/344536.

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Korir, Geoffrey K., Jeska S. Wambani, Ian K. Korir, Mark Tries, and Beatrice M. Mulama. "Quality management systems in radiology." South African Journal of Radiology 17, no. 3 (2013): 84–88. http://dx.doi.org/10.4102/sajr.v17i3.271.

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Background: The use of X-ray imaging is ever increasing in proportion to the need for radiological services and technological capabilities. Quality management that includes patient radiation dose monitoring is fundamental to safety and quality improvement of radiological services.Objective: To assess the level of quality management systems in X-ray medical facilities in Kenya.Methods: Quality management inspection, quality control performance tests and patient radiation exposure were assessed in 54 representative X-ray medical facilities. Additionally, a survey of X-ray examination frequency w
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42

Shakhabov, I. V., Y. Y. Melnikov, and A. V. Smyshlyaev. "Analysis of doctors of different specialties staffing in the Russian Federation and abroad." Siberian Medical Review, no. 5 (2020): 96–101. http://dx.doi.org/10.20333/2500136-2020-5-96-101.

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The aim of the research is to analyze the indicators of medical personnel of various specialties staffing in the Russian Federation and abroad. Material and methods. The data from Rosstat in the field of healthcare were used. The proportion of doctors of various specialties was calculated. Descriptive statistics method was used; indicators trend analysis was carried out. Results. The indicator of staffing by doctors of all specialties per 10,000 population in the studied period had a downward trend (-4.3%). The largest decrease occurred among pediatricians (-36.0%). Less decrease concerns obst
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43

Hagler, H. K., A. C. Morris, and L. M. Buja. "Development of instrumentation to measure rapid calcium transits in neonatal rat ventricular myocytes." Proceedings, annual meeting, Electron Microscopy Society of America 46 (1988): 44–45. http://dx.doi.org/10.1017/s0424820100102304.

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Changes in the intracellular calcium levels in cardiac myocytes are important in the regulation of normal cardiac function and have been implicated in contributing to irreversible cell injury with ischemia or hypoxia. Intracellular measurement of total calcium changes with subcellular resolution have become routine using rapid cryofixation, cryosectioning, cryotransfer and energy dispersive x-ray microanalysis in analytical electron microscopes. The x-ray microanalysis technique measures total calcium changes within subcellular compartments, but does not distinguish between the bound and free
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44

Evgenii, Tsypin, Efremova Tatiana, and Ovchinnikova Tatiana. "Economic efficiency of preconcentration with X-ray fluorescence separation." Izvestiya vysshikh uchebnykh zavedenii Gornyi zhurnal, no. 6 (September 24, 2020): 66–74. http://dx.doi.org/10.21440/0536-1028-2020-6-66-74.

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Introduction. A promising direction in mineral processing development is the combination of preconcentration and deep processing. For that purpose, X-ray fluorescence separation (XFS) is highly effectively used. A feature of the technology is the availability of the procedures of crushing and screening of the initial rock into machine and unsortable classes, and separation in machine classes. The efficiency of preconcentration complex depends on the quality of granulometric composition forming procedures. Methodology. X-ray radiometric washability of polymetallic ore samples has been assessed,
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Marcos, Celia, María de Uribe-Zorita, Pedro Álvarez-Lloret, Alaa Adawy, Patricia Fernández, and Pablo Arias. "Quartz Crystallite Size and Moganite Content as Indicators of the Mineralogical Maturity of the Carboniferous Chert: The Case of Cherts from Eastern Asturias (Spain)." Minerals 11, no. 6 (2021): 611. http://dx.doi.org/10.3390/min11060611.

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Chert samples from different coastal and inland outcrops in the Eastern Asturias (Spain) were mineralogically investigated for the first time for archaeological purposes. X-ray diffraction, X-ray fluorescence, transmission electron microscopy, infrared and Raman spectroscopy and total organic carbon techniques were used. The low content of moganite, since its detection by X-ray diffraction is practically imperceptible, and the crystallite size (over 1000 Å) of the quartz in these cherts would be indicative of its maturity and could potentially be used for dating chert-tools recovered from arch
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46

Perdelwitz, V., F. H. Navarrete, J. Zamponi, et al. "Long-term variations in the X-ray activity of HR 1099." Astronomy & Astrophysics 616 (August 2018): A161. http://dx.doi.org/10.1051/0004-6361/201732222.

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Context. Although timing variations in close binary systems have been studied for a long time, their underlying causes are still unclear. A possible explanation is the so-called Applegate mechanism, where a strong, variable magnetic field can periodically change the gravitational quadrupole moment of a stellar component, thus causing observable period changes. One of the systems exhibiting such strong orbital variations is the RS CVn binary HR 1099, whose activity cycle has been studied by various authors via photospheric and chromospheric activity indicators, resulting in contradicting period
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Grover, R. "Clinical Assessment of Scaphoid Injuries and the Detection of Fractures." Journal of Hand Surgery 21, no. 3 (1996): 341–43. http://dx.doi.org/10.1016/s0266-7681(05)80197-4.

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Difficulty in interpreting X-rays following carpal injury emphasizes the importance of clinical assessment in diagnosing scaphoid fractures. The classical sign of tenderness in the anatomical snuffbox is not specific and leads to many unnecessary out-patient reviews. A prospective comparison was made between anatomical snuffbox, scaphoid tubercle and scaphoid compression tenderness as indicators of scaphoid fracture in 221 patients with suspected scaphoid injury. Swelling was determined by measuring the difference in circumference at the wrist joint to compare between fracture and soft tissue
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48

Gerasimenko, M. Yu, E. P. Glushkova, D. Yu Gorbunova, Yu Yu Byalovsky, S. V. Bulatetskiy, and A. V. Ivanov. "Magnetotherapy in patients with knee osteoarthrosis: thermographic efficacy indicators." Russian Journal of Physiotherapy, Balneology and Rehabilitation 17, no. 4 (2020): 185–91. http://dx.doi.org/10.18821/1681-3456-2018-17-4-185-191.

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Background. Osteoarthrosis is characterized by wide prevalence, especially among patients of older age groups, a high risk of restrictions on the musculoskeletal system function, which results in the patients impaired ability to work and reduced quality of life.
 Aim: investigate the possibilities of thermographic assessment of efficiency of magnetotherapy of the articular syndrome in osteoarthrosis of the knee joints.
 Methods. The study included 57 patients (46 women and 11 men) with osteoarthrosis of the knee joints (mean age 61.27.4 years). The patients were divided into two grou
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Millette, J. R., A. L. Allenspach, and P. J. Clark. "Subcellular Ions By X-Ray Microanalysis For Evidence of Hepatotoxicity." Proceedings, annual meeting, Electron Microscopy Society of America 43 (August 1985): 108–11. http://dx.doi.org/10.1017/s0424820100117571.

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The hypothesis that the influx of extracellullar Ca2+ across a damaged plasma membrane is the final common pathway for chemically mediated cell death has stirred considerable controversy and continued interest in the study of subcellular ion shifts as sensitive indicators of hepatotoxicity caused by environmental pollutants. A number of studies have shown that increases in hepatic mitochondrial calcium result from the ingestion of carbon tetrachloride. Quantitative measurement of calcium in subcellular components was accomplished in early studies by using techniques involving whole tissue homo
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Rerek, Tomasz, Beata Derkowska-Zielinska, Marek Trzcinski, Robert Szczesny, Mieczyslaw K. Naparty, and Lukasz Skowronski. "Influence of the Microstructure and Optical Constants on Plasmonic Properties of Copper Nanolayers." Materials 14, no. 23 (2021): 7292. http://dx.doi.org/10.3390/ma14237292.

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Copper layers with thicknesses of 12, 25, and 35 nm were thermally evaporated on silicon substrates (Si(100)) with two different deposition rates 0.5 and 5.0 Å/s. The microstructure of produced coatings was studied using atomic force microscopy (AFM) and powder X-ray diffractometer (XRD). Ellipsometric measurements were used to determine the effective dielectric functions <ε˜> as well as the quality indicators of the localized surface plasmon (LSP) and the surface plasmon polariton (SPP). The composition and purity of the produced films were analysed using X-ray photoelectron spectroscop
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