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Báo cáo y học: "Ultrasonography, magnetic resonance imaging, radiography, and clinical assessment of inflammatory and destructive changes in fingers and toes of patients with psoriatic arthritis" pot
... joints at inclusion The study participants signed consent forms after receiving oral and written information The study was approved by the local Danish ethics committee Ultrasonography US was performed...
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báo cáo hóa học:" What do standard radiography and clinical examination tell about the shoulder with cuff tear arthropathy?" pptx
... appears to be associated with full thickness tearing of the rotator cuff [14,22] Scarce information exists about the relationships between the radiological findings, the clinical evaluation [6,8,21,23,24] ... the patient, we believe a conventional antero-posterior radiograph cannot provide any predictive information on the clinical status of the patient This is in contrast with the statement of Nové-Josserand ... tears Page of Conclusions A conventional antero-posterior radiograph cannot provide any predictive information on the clinical status of the patient The subscapular muscle can be well tested by the...
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báo cáo hóa học:" What do standard radiography and clinical examination tell about the shoulder with cuff tear arthropathy?" docx
... appears to be associated with full thickness tearing of the rotator cuff [14,22] Scarce information exists about the relationships between the radiological findings, the clinical evaluation [6,8,21,23,24] ... the patient, we believe a conventional antero-posterior radiograph cannot provide any predictive information on the clinical status of the patient This is in contrast with the statement of Nové-Josserand ... tears Page of Conclusions A conventional antero-posterior radiograph cannot provide any predictive information on the clinical status of the patient The subscapular muscle can be well tested by the...
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Báo cáo y học: "proximal interphalangeal joints in rheumatoid arthritis: a comparison with magnetic resonance imaging, conventional radiography and clinical examination" pdf
... whether ultrasonography can provide information on RA finger joints that is not available with conventional radiography and clinical examination and comparable to the information provided by MRI Materials ... resonance imaging; RA, rheumatoid arthritis aspect was performed both in the neutral position and at about 70° of flexion Each joint was assessed by quadrant for the presence or absence of bone erosions ... warrants examination of the joints from all possible aspects in order to avoid losing important information on the extent of inflammation [27] Page of 11 (page number not for citation purposes)...
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Báo cáo y học: " The Chinese version of the Obsessive-Compulsive Inventory-Revised scale: Replication and extension to non-clinical and clinical individuals with OCD symptoms" pps
... OCD The availability of the OCI-R in Chinese would definitely provide researchers with additional information to assess the severity of OCD symptoms in the Chinese context, and to facilitate cross-cultural...
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Báo cáo y học: "Natural history and clinical significance of MRI-detected bone marrow lesions at the knee: a prospective study in community dwelling older adults" pot
... increases Figure describes the natural history of BMLs in the whole population and split by ROA About half the lesions present at baseline remained stable, with similar proportions both worsening...
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Modern Developments in X-Ray and Neutron Optics Episode 1 docx
... quantum optics, ultrafast phenomena, optical spectroscopy techniques, optoelectronics, quantum information, information optics, applied laser technology, industrial applications, and other topics of ... Idir, Th Krist, and A.G Michette Abstract Although X-rays and neutrons can provide different information about samples, there are many similarities in the ways in which beams of them can be manipulated ... 4.1 Introduction 4.2 About the RESTRAX Code 4.2.1 Instrument Model ...
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Modern Developments in X-Ray and Neutron Optics Episode 2 pptx
... length remains essentially unchanged by the optics By combining the path length information of each ray with its spatial information (footprint on an optical element or focus) a three-dimensional ... or ambiguous input parameters or results The program is in continuous development and new ideas about sources or optical elements are implemented relatively fast, so that new demands can be addressed ... never-ending ideas for implementation of new optical elements References J Feldhaus, RAY (unpublished) and personal communication (1984) C Welnak, G.J Chen, F Cerrina, Nucl Instrum Methods Phys Res A 347,...
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Modern Developments in X-Ray and Neutron Optics Episode 3 doc
... the vertical widths at the collimating mirror are about 15% larger from SRW than those from PHASE This discrepancy is bigger than the variation of about 5% obtained when different sampling of the ... point We note that (5.2) has the same level of generality as (5.1), since no particular assumptions about the electron trajectory or the observation point have been made so far One can show equivalence ... found The width of the 620 μm beam at the nominal focus of the first mirror, given in Table 5.4, is about an order of magnitude wider than the (correctly focused) 62 μm radiation This results from...
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Modern Developments in X-Ray and Neutron Optics Episode 4 potx
... analysis of the behavior of WGs in three different coupling geometries has led us to some conclusions about their optimal use as a function of the source characteristics We have shown in Sect 6.2 that ... meV This takes place in so-called “cold sources.” This cold source is a metal canister containing about 20 l of liquid hydrogen or deuterium (at 25 K) This source has an isotropic emission, and ... small angle neutron scattering Focusing Optics for Neutrons 117 (VSANS) spectrometer which will use about 120 beams, multiplying the luminosity of the spectrometer by an equivalent factor 7.4 Crystal...
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Modern Developments in X-Ray and Neutron Optics Episode 5 doc
... of 30 nm:90 nm, averaging η6 over the whole zone plate, yields about 40% diffraction efficiency at 2.4 nm wavelength and can resolve about 10 nm features By comparison, zone plate objectives to be ... zones, which has almost the same value as calculated for 50 layers About 16% diffraction efficiency is obtained with five layers, which is about half the value of ideally tilted zone structures However, ... the Bragg condition is fulfilled for the 6th order One can see that this order is very efficient at about 1,500 nm zone height, Volume Effects in Zone Plates 155 100 Σm m=1 m=6 m=0 efficiency / % 80...
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Modern Developments in X-Ray and Neutron Optics Episode 6 pptx
... components up to 1.2 m in length as in synchrotron radiation beam lines It is possible to acquire information about slope and height deviations and the radius of curvature of a sample in the form of line ... conformity of both unfitted results is in the range about 0.3 or 1.1 nm rms The reproducibility of 0.03 μrad rms for the NOM-ACT measurement is about four times better than the reproducibility of ... been achieved Compared to the previously obtained horizontal focus size of about 43 μm (FWHM) the present value of about 17 μm (±10%) represents a more than twofold improvement Because of the...
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Modern Developments in X-Ray and Neutron Optics Episode 7 doc
... 2.1 keV as a function of the number of images integrated To achieve a signal-to-noise ratio of about 100, at least 50 CCD images had to be integrated By integrating 500 CCD images per wavefront ... features of X-ray reflection from multilayers Then we describe some methods that can be used to extract information from the XRR curves and apply PPM to the reflectivity data of a multilayer Finally, the ... increase of Pt layers at the right side is an image artifact It will be explained in Sect 16.3.3 The information provided by the TEM analysis is often useful in helping to improve the stability of...
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Modern Developments in X-Ray and Neutron Optics Episode 8 doc
... micro-XRF gives information about the elemental composition and the Raman spectrometer delivers data about the molecular structure of the sample The lateral resolution for micro-XRF amounts to about 25 ... for monocapillaries at a synchrotron source amounts to about μm Polycapillary lenses allow one to reach a minimum lateral resolution of about 15 μm In this case, the element detection limit amounts ... Parabolic refractive lenses can be used to focus hard X-rays in both directions in the range from about keV to about 200 keV They are compact, robust, and easy to align and to operate They can be used...
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Modern Developments in X-Ray and Neutron Optics Episode 9 potx
... camera A sample image is shown in Fig 20.3 The FWHM of the detected peak is about 0.7 × 1.1 mm2 FWHM values are up to about 70% larger than the simulated ones This is probably mainly caused by ... refractive image planes The plotted signals still contain dark counts of about 0.5 arbitrary units, while the incident intensity is about 0.6 The intensity gain would thus be approximately the numbers ... preparation viewpoint it is interesting to know that an m = supermirror has about 100 layers, while an m = mirror has about 500 layers Due to the low primary flux of neutrons, the mirrors used,...
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Modern Developments in X-Ray and Neutron Optics Episode 10 doc
... We have applied about 1019 n cm−2 on coated Si wafers and measured the reflectivity curves before and after irradiation We found that the reflectivity above m = 1.8 is degraded by about 3% The slope ... region fundamental structural transformations occur Based on these results we expect that up to about 140◦C the supermirror structure will be stable, and its reflectivity does not change Experiments ... heated Ni/Ti supermirrors circumstances as in the real neutron guides, where there is a pressure of about 10−4 bar Figure 22.6a shows the change of the XRD spectrum up to 140◦ C The only change is...
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Modern Developments in X-Ray and Neutron Optics Episode 11 docx
... completely and the Bragg peak disappeared Therefore, an intermediate 350◦ C/2 h annealing, which brought about a decrease of the peak reflectivity by ≈1 order of magnitude, was done independently Such a ... first exposed to several isothermal annealings at 280◦ C up to 33 h of total time which brought about a decrease of the peak reflectivity on the first Bragg maximum by ≈25% This decrease was connected ... angle of incidence must be less than the critical angle which, for most materials, is less than about 1◦ for X-rays Such small grazing angles result in several major disadvantages including aberrations...
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Modern Developments in X-Ray and Neutron Optics Episode 12 pps
... small (Fig 26.9c) The source-to-crystals distance was 40 m, the focusing distance was about 20 m, and the energy about keV The crystals accepted mm of the horizontal size of the beam and created ... side of the groove The ray-tracing simulation of the experiment showed that the groove would give about 3.3 times higher intensity in the peak at the focal plane than an asymmetric concentrator ... diffracted on the groove and is concentrated into a narrow bright line The width of the groove was about 2.5 mm Because of the spread, Δδ, of the diffracted beam the focus cannot be sharp Even without...
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Modern Developments in X-Ray and Neutron Optics Episode 13 doc
... Figure 29.2 shows an example of the angular dependence of the penetration and information depths The penetration and information depths are important not only for the depth structural studies but ... reflected and the diffracted beams at grazing incidence is shown in Fig 29.4 29.4 Penetration and Information Depths The effective absorption coefficient, μe , is given by the imaginary parts of the ... extinction distance [1] The penetration depth is 506 D Koryt´r et al a (a) (b) Fig 29.2 Penetration and information depths vs the angle of incidence relative to the surface CuKα1 radiation, Ge(220) asymmetric...
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