Basics of X-ray diagnostics of diseases of internal organs

1930 ◽  
Vol 26 (3) ◽  
pp. 322-322
Author(s):  
F. Peltason
Keyword(s):  
Imaging Technique ◽  
Advanced Training ◽  
Internal Organs ◽  
X Ray ◽  
Training Courses ◽  
The University

Bibliography and reviews. Felix Peltason. Grundzuge der Rontgendiagnostik innerer Erkrankungen. (Fundamentals of X-ray diagnostics of diseases of internal organs). From 222 fig. in the text. P. 178. Ed. J. E. Bergmann, Miinchen. Price 1650 and 18 Mar. in the lane. Peltazon's book is written primarily for the practical physician. It was based on the lectures given by the author at the advanced training courses for doctors for several years at the polyclinic of the University of Wrzburg. Without pretending to give exhaustive answers to all questions related to radiology, the author introduces the reader to the field of X-ray diagnostics, acquainting him with the technique of x-ray and imaging, technique and symptomatology.

scholarly journals USING THE EXPERIENCE OF TRAINING THE BRITISH TEACHERS OF HIGH SCHOOL IN UKRAINE

2020 ◽  
Vol 1 (190) ◽  
pp. 141-146
Author(s):  
Oksana Starostina ◽  
Keyword(s):  
Professional Development ◽  
Professional Growth ◽  
Professional Activity ◽  
Advanced Training ◽  
Corporate Education ◽  
Economic Changes ◽  
Active Involvement ◽  
Special Programs ◽  
Training Courses ◽  
The University

The article considers the recommendations for the domestic system of advanced training of scientific and pedagogical staff of higher educational institutions on the basis of the British experience. It is noted that it is appropriate for the domestic system of professional development of scientific and pedagogical staff to use the ideas of corporate education and network approach, which will allow teachers to better adapt to new requirements due to socio-economic changes, timely update and improve their professional knowledge. There is also a need for systematic monitoring of the problems and needs of teachers in order to respond quickly and develop current and modern programs and training courses. It is stated that to improve the efficiency of coordination of work on professional development of scientific and pedagogical staff it is necessary to organize such activities in different departments of the university, which will build an effective individual route of professional growth of teacher from assistant to professor at different levels and in different areas. It is concluded that in order to ensure that the content of the programs meets the needs of students of advanced training courses, it is necessary to significantly improve the feedback between teachers who improve their skills and course developers, including through the Internet and other modern technologies. It is also noted that in order to organize the process of professional development, relevant to each teacher, it is necessary to develop special programs that would take into account the interests and needs of each such teacher. In turn, to optimize the methods and forms of professional development of university teachers it is necessary to use an orderly system of interaction between the moderator and students of the course, the use of e-interactive learning in combination with traditional methods in accordance with the program of advanced training. The active involvement of teachers of domestic universities in the process of professional development will also be facilitated by constructive changes in determining their workload and in the material stimulation of professional activity.

scholarly journals Implementation difficulties of tutor support technologies in higher education

2021 ◽  
Vol 9 (SPE1) ◽  
Author(s):  
Natalia Solovyeva ◽  
Larisa Cirkunova ◽  
Larisa Tihomirova ◽  
Anastasia Chernousova ◽  
Elena Kurzenkova
Keyword(s):  
Higher Education ◽  
Professional Development ◽  
Spatial Interaction ◽  
The Self ◽  
Advanced Training ◽  
University Of Technology ◽  
Adequate Understanding ◽  
Specific Goal ◽  
Training Courses ◽  
The University

The article is devoted to problems of implementation in practice of the University of technology tutor support, which would allow modern students to quickly and painlessly build an individual trajectory of personal and professional development, and University – to implement the requirements of standard of the last generation. The article is based on observations of the included experiment on the implementation of tutor support, which was carried out in the framework of advanced training courses for teachers of PSNIU. During the experiment, conditions that are extremely important for ensuring the effectiveness of the implementation of tutor support technology were identified. Among them: the certainty (firmness) of the tutor's position in the implementation of a specific goal of tutor support; the importance of organizing spatial interaction during the tutorial; the formation of an adequate understanding of the content of the tutor's activity among the participants of the tutorial; recognition of the self-value of the tutor's activity.

X-ray microtomography

1988 ◽  
Vol 46 ◽  
pp. 998-999
Author(s):  
H.W. Deckman ◽  
B.F. Flannery ◽  
J.H. Dunsmuir ◽  
K.D' Amico
Keyword(s):  
Computed Tomography ◽  
Internal Structure ◽  
Imaging Technique ◽  
Three Dimensional ◽  
Tissue Structure ◽  
Individual Element ◽  
X Ray ◽  
Non Invasive ◽  
Panoramic Imaging ◽  
Three Dimensional Images

We have developed a new X-ray microscope which produces complete three dimensional images of samples. The microscope operates by performing X-ray tomography with unprecedented resolution. Tomography is a non-invasive imaging technique that creates maps of the internal structure of samples from measurement of the attenuation of penetrating radiation. As conventionally practiced in medical Computed Tomography (CT), radiologists produce maps of bone and tissue structure in several planar sections that reveal features with 1mm resolution and 1% contrast. Microtomography extends the capability of CT in several ways. First, the resolution which approaches one micron, is one thousand times higher than that of the medical CT. Second, our approach acquires and analyses the data in a panoramic imaging format that directly produces three-dimensional maps in a series of contiguous stacked planes. Typical maps available today consist of three hundred planar sections each containing 512x512 pixels. Finally, and perhaps of most import scientifically, microtomography using a synchrotron X-ray source, allows us to generate maps of individual element.

Low temperature x-ray microanalysis of frozen-hydrated tobacco leaves

1984 ◽  
Vol 42 ◽  
pp. 284-285
Author(s):  
S. Edith Taylor ◽  
Patrick Echlin ◽  
May McKoon ◽  
Thomas L. Hayes
Keyword(s):  
Low Temperature ◽  
Lemna Minor ◽  
Root Tips ◽  
Tobacco Leaves ◽  
X Ray ◽  
Whole Cells ◽  
Carbon Coated ◽  
The Right ◽  
Beam Currents ◽  
The University

Low temperature x-ray microanalysis (LTXM) of solid biological materials has been documented for Lemna minor L. root tips. This discussion will be limited to a demonstration of LTXM for measuring relative elemental distributions of P,S,Cl and K species within whole cells of tobacco leaves.Mature Wisconsin-38 tobacco was grown in the greenhouse at the University of California, Berkeley and picked daily from the mid-stalk position (leaf #9). The tissue was excised from the right of the mid rib and rapidly frozen in liquid nitrogen slush. It was then placed into an Amray biochamber and maintained at 103K. Fracture faces of the tissue were prepared and carbon-coated in the biochamber. The prepared sample was transferred from the biochamber to the Amray 1000A SEM equipped with a cold stage to maintain low temperatures at 103K. Analyses were performed using a tungsten source with accelerating voltages of 17.5 to 20 KV and beam currents from 1-2nA.

Defects of Platelet Function Recognized by X-Ray Imaging and Scanning Electron Microscopy

1985 ◽  
Vol 43 ◽  
pp. 610-613
Author(s):  
M.G. Baldini ◽  
S. Morinaga ◽  
D. Minasian ◽  
R. Feder ◽  
D. Sayre ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Cell Biology ◽  
Imaging Technique ◽  
Human Platelets ◽  
X Rays ◽  
X Ray ◽  
X Ray Imaging ◽  
Complex Phenomena ◽  
Scanning Electron

Contact X-ray imaging is presently developing as an important imaging technique in cell biology. Our recent studies on human platelets have demonstrated that the cytoskeleton of these cells contains photondense structures which can preferentially be imaged by soft X-ray imaging. Our present research has dealt with platelet activation, i.e., the complex phenomena which precede platelet appregation and are associated with profound changes in platelet cytoskeleton. Human platelets suspended in plasma were used. Whole cell mounts were fixed and dehydrated, then exposed to a stationary source of soft X-rays as previously described. Developed replicas and respective grids were studied by scanning electron microscopy (SEM).

Imaging of Al-Li-Cu alloys with a Scanning Ion Microprobe

1990 ◽  
Vol 48 (2) ◽  
pp. 314-315
Author(s):  
K.K. Soni ◽  
D.B. Williams ◽  
J.M. Chabala ◽  
R. Levi-Setti ◽  
D.E. Newbury
Keyword(s):  
Mass Spectrometry ◽  
Secondary Ion Mass Spectrometry ◽  
Equilibrium Phase ◽  
Icosahedral Symmetry ◽  
Ion Microprobe ◽  
X Ray ◽  
Cu Alloys ◽  
Two Phases ◽  
The University ◽  
Secondary Ion

In contrast to the inability of x-ray microanalysis to detect Li, secondary ion mass spectrometry (SIMS) generates a very strong Li+ signal. The latter’s potential was recently exploited by Williams et al. in the study of binary Al-Li alloys. The present study of Al-Li-Cu was done using the high resolution scanning ion microprobe (SIM) at the University of Chicago (UC). The UC SIM employs a 40 keV, ∼70 nm diameter Ga+ probe extracted from a liquid Ga source, which is scanned over areas smaller than 160×160 μm2 using a 512×512 raster. During this experiment, the sample was held at 2 × 10-8 torr.In the Al-Li-Cu system, two phases of major importance are T1 and T2, with nominal compositions of Al2LiCu and Al6Li3Cu respectively. In commercial alloys, T1 develops a plate-like structure with a thickness <∼2 nm and is therefore inaccessible to conventional microanalytical techniques. T2 is the equilibrium phase with apparent icosahedral symmetry and its presence is undesirable in industrial alloys.

A comprehensive approach to the formation of anti-corruption behavior of the internal affairs bodies employees in the professional development system

2020 ◽  
Vol 2020 (3) ◽  
pp. 210-217
Author(s):  
Oksana Mironkina
Keyword(s):  
Professional Development ◽  
Police Officers ◽  
Comprehensive Approach ◽  
Professional Activity ◽  
Advanced Training ◽  
Basic Training ◽  
Professional Activities ◽  
Training Courses ◽  
Internal Affairs ◽  
Corruption Prevention

Methods of training in advanced training groups formed from the staff of personnel divisions of the MIA of Russia, which involve the use of anti-corruption education at different stages of professional activity are discussed in the article. A comprehensive approach to the formation of anti-corruption behavior, which allows using various forms of training of police officers in their relation is described. The effectiveness of this approach in the system of professional development was shown. A comprehensive approach allows the training process to pay attention to the needs and difficulties in the field of corruption prevention without spending time on basic training information. Several stages in the organization and content of training are considered. Each of them corresponds to different stages of professional development of specialists of personnel divisions of internal affairs bodies. Described in detail every stage is aimed at a separate audience and has its own value. The possibilities of anti-corruption education are presented, starting with the selection of personnel for service in the internal affairs bodies and ending with the preparation for dismissal. The anti-corruption educational activities carried out at the present time are analyzed. Methods of intensifying each of them and the possibilities of optimal inclusion in the developed complex of content and forms are determined. The proposed approach can be used for majority posts. It is not limited to human resources units. In addition, the developed methodological material can be used by students in the course of their professional activities in the field after studying at advanced training courses.

Dalnegroite, Tl5–xPb2x(As,Sb)2l–xS34, a new thallium sulphosalt from Lengenbach quarry, Binntal, Switzerland

2009 ◽  
Vol 73 (6) ◽  
pp. 1027-1032 ◽  
Author(s):  
F. Nestola ◽  
A. Guastoni ◽  
L. Bindi ◽  
L. Secco
Keyword(s):  
Polarized Light ◽  
New Mineral ◽  
X Ray Diffraction ◽  
X Ray ◽  
Elemental Concentrations ◽  
Reflected Light ◽  
Mohs Hardness ◽  
The Mean ◽  
The University ◽  
Probable Space

AbstractDalnegroite, ideally Tl4Pb2(As12Sb8)Σ20S34, is a new mineral from Lengenbach, Binntal, Switzerland. It occurs as anhedral to subhedral grains up to 200 μm across, closely associated with realgar, pyrite, Sb-rich seligmanite in a gangue of dolomite. Dalnegroite is opaque with a submetallic lustre and shows a brownish-red streak. It is brittle; the Vickers hardness (VHN25) is 87 kg mm-2(range: 69—101) (Mohs hardness ∼3—3½). In reflected light, dalnegroite is highly bireflectant and weakly pleochroic, from white to a slightly greenish-grey. In cross-polarized light, it is highly anisotropic with bluish to green rotation tints and red internal reflections.According to chemical and X-ray diffraction data, dalnegroite appears to be isotypic with chabournéite, Tl5-xPb2x(Sb,As)21-xS34. It is triclinic, probable space groupP1, witha= 16.217(7) Å,b= 42.544(9) Å,c= 8.557(4) Å, α = 95.72(4)°, β = 90.25(4)°, γ = 96.78(4)°,V= 5832(4) Å3,Z= 4.The nine strongest powder-diffraction lines [d(Å) (I/I0) (hkl)] are: 3.927 (100) (10 0); 3.775 (45) (22); 3.685 (45) (60); 3.620 (50) (440); 3.124 (50) (2); 2.929 (60) (42); 2.850 (70) (42); 2.579 (45) (02); 2.097 (60) (024). The mean of 11 electron microprobe analyses gave elemental concentrations as follows: Pb 10.09(1) wt.%, Tl 20.36(1), Sb 23.95(1), As 21.33(8), S 26.16(8), totalling 101.95 wt.%, corresponding to Tl4.15Pb2.03(As11.86Sb8.20)S34. The new mineral is named for Alberto Dal Negro, Professor in Mineralogy and Crystallography at the University of Padova since 1976.

X-ray imaging with ultra-small-angle X-ray scattering as a contrast mechanism

2004 ◽  
Vol 37 (5) ◽  
pp. 757-765 ◽  
Author(s):  
L. E. Levine ◽  
G. G. Long
Keyword(s):  
Small Angle ◽  
Imaging Technique ◽  
Three Dimensional ◽  
Sample Volume ◽  
Contrast Imaging ◽  
X Ray ◽  
X Ray Scattering ◽  
X Ray Imaging ◽  
Contrast Mechanism ◽  
Ray Scattering

A new transmission X-ray imaging technique using ultra-small-angle X-ray scattering (USAXS) as a contrast mechanism is described. USAXS imaging can sometimes provide contrast in cases where radiography and phase-contrast imaging are unsuccessful. Images produced at different scattering vectors highlight different microstructural features within the same sample volume. When used in conjunction with USAXS scans, USAXS imaging provides substantial quantitative and qualitative three-dimensional information on the sizes, shapes and spatial arrangements of the scattering objects. The imaging technique is demonstrated on metal and biological samples.

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