scholarly journals On the Diagnostic Role of Morphological Signs of Wild Rose (Rosa L.)

2019 ◽  
Author(s):  
M U Umarov ◽  
M A Taysumov ◽  
M A Astamirova ◽  
R M Umarov ◽  
Ya S Gapaev ◽  
...  
Keyword(s):  
Practical Importance ◽  
Morphological Features ◽  
Diagnostic Role ◽  
Section Rank ◽  
Different Levels

Identification and systematics of species of wild rose (Rosa L.) are often associated with difficulties due to the diversity and variability of morphological features used in this process. They also arise in establishing genetic links between taxa of different ranks. Clarity in the diagnostic role of specific or group of characters is not only theoretical but also of practical importance. Such an attempt is made on the example of species of the genus Rosa from different sections and subsections (R. canina. R. danaiorum, R. ruprechtii, R. marschalliana, R. obtusifolia, R. svanetica, Rosa mollis, R. buschiana, R. pulverulenta, R pomifera, R. iberica, R. pimpinnefolia, etc.) of Chechnya and adjacent territories. The set of signs of the vegetative and generative sphere used in identifying species, subsections, sections has been considered. There was a lack of representativeness for the intraspecific diagnostics of such signs as: “free, immersed columns”, or “sessile stigmas in the hemispherical head above the fetal throat”, “occasionally solid sepals, with downward directed fruits” and others used in sectional diagnoses, because they are characteristic of species of different sections. The authors noted the heterogeneity of the authors’ approach to the characterization of section rank taxa, the inadmissibility of the universal, and the need for a differentiated approach in using the same characteristics when identifying taxa of different levels.

Abstract 425: Is Adventitial Thickening a Pathogenic Factor in Aortic Atherosclerosis?: A Controlled Transesophageal Echocardiographic Study

2017 ◽  
Vol 37 (suppl_1) ◽  
Author(s):  
Luis P Roldan ◽  
Paola C Roldan ◽  
Brennan N Gibbs ◽  
Richard Snider ◽  
Michelle D Ratliff ◽  
...  
Keyword(s):  
Lupus Erythematosus ◽  
Intima Media Thickness ◽  
Pathogenic Factor ◽  
Limited Data ◽  
Echocardiographic Study ◽  
Level 3 ◽  
And Gender ◽  
Different Levels

Background: Aortic (Ao) atherosclerosis is common in systemic lupus erythematosus (SLE), is best assessed by transesophageal echocardiography (TEE), and is characterized by increased intima-media thickness (IMT) and plaques. Although TEE may also allow characterization of Ao adventitial thickness (AT), there is limited data on the pathogenic role of adventitial thickening in Ao atherosclerosis. Methods: 68 SLE patients (62 women, age 36 ± 12 years) and 25 age-and-gender matched healthy controls (22 women, age 34 ± 11 years) underwent multiplane TEE. At a depth of 3-4 cm using narrow sector scan, 2-dimensional guided M-mode images were obtained to assess the presence of plaques, IMT outside of plaques, AT outside of plaques, and AT in plaques at three different levels of the thoracic Ao (proximal, mid, distal). At each aortic level, 3 IMT and 3 AT measurements were taken during end diastole using electronic calipers. These measurements were then averaged. Unaware of subjects’ clinical data, one observer assessed for IMT and plaques while a second observer assessed AT. For purpose of analysis, intima-media thickening was defined as >1 mm which is >2SD above the corresponding overall mean IMT in controls (0.66 ± 0.17 mm), and adventitial thickening as >1.07 mm which is >2SD above the corresponding overall mean AT in controls (0.81 ± 0.13 mm). Plaques were defined as focal-protruding IMT >50% of the surrounding vessel wall at any aortic level. Results: As shown in Table 1A, intima-media thickening and plaques were greater in patients than in controls. Similarly, adventitial thickening was more common in patients than in controls. In addition, AT was greater in patients with intima media thickening, plaques, and intima-media thickening or plaques ( Table 1B) . Furthermore, AT was greater in plaques than AT outside of plaques ( Table 1C ). Conclusion: Adventitial thickening is a pathogenic factor of Ao atherosclerosis in SLE.

The diagnostic role of dual-phase 18F-FDG PET/CT in the characterization of solitary pulmonary nodules

2014 ◽  
Vol 35 (3) ◽  
pp. 260-267 ◽  
Author(s):  
Yusuf Demir ◽  
Berna D. Polack ◽  
Canan Karaman ◽  
Özhan Özdoğan ◽  
Erdem Sürücü ◽  
...  
Keyword(s):  
Fdg Pet ◽  
Pulmonary Nodules ◽  
Dual Phase ◽  
Solitary Pulmonary Nodules ◽  
Pet Ct ◽  
Diagnostic Role ◽  
18F Fdg ◽  
Fdg Pet Ct

scholarly journals The role of neuroradiology in intracerebral haemorrhage

2011 ◽  
Vol 2 (1S) ◽  
pp. 31
Author(s):  
Daniele Prosetti ◽  
Francesca Vannozzi ◽  
Fabio Scazzeri
Keyword(s):  
Case Report ◽  
Intracranial Haemorrhage ◽  
Case Reports ◽  
Cerebral Haemorrhage ◽  
Diagnostic Process ◽  
Digital Subtraction ◽  
Computerised Tomography ◽  
Diagnostic Role

The neuroradiologist plays a fundamental role in evaluating cerebral haemorrhage, from the clinical suspect until the final diagnosis.The neuroradiologist’s role consists not only in highlighting the presence of an haemorrhage, but also in specifying its localization and its nature, and in assessing, together with the neurosurgeon, the adequate treatment.With the aid of some case reports, this article underlines the role of neuroradiologist in the diagnostic process. For each case report discussed, computerised tomography (CT) and digital subtraction angiography (DSA) findings are given, to better highlight the diagnostic role of these techniques in the detection and characterization of intracranial haemorrhage.

scholarly journals “Single-nucleus RNA-seq2 reveals a functional crosstalk between liver zonation and ploidy”

2020 ◽  
Author(s):  
M. L. Richter ◽  
I.K. Deligiannis ◽  
A. Danese ◽  
E. Lleshi ◽  
P. Coupland ◽  
...  
Keyword(s):  
Gene Expression ◽  
Gene Dosage ◽  
Cellular Heterogeneity ◽  
Cell Populations ◽  
Rna Seq ◽  
Liver Zonation ◽  
Single Nucleus ◽  
Different Levels

AbstractSingle-cell RNA-seq reveals the role of pathogenic cell populations in development and progression of chronic diseases. In order to expand our knowledge on cellular heterogeneity we have developed a single-nucleus RNA-seq2 method that allows deep characterization of nuclei isolated from frozen archived tissues. We have used this approach to characterize the transcriptional profile of individual hepatocytes with different levels of ploidy, and have discovered that gene expression in tetraploid mononucleated hepatocytes is conditioned by their position within the hepatic lobe. Our work has revealed a remarkable crosstalk between gene dosage and spatial distribution of hepatocytes.

scholarly journals Albert Cohen and Dove Attia as a phenomenon of French musical of the new century

2021 ◽  
pp. 119-134
Author(s):  
Elena Andreevna Trukhacheva
Keyword(s):  
Art History ◽  
Practical Importance ◽  
Professional Performance ◽  
National Values ◽  
Theoretical Significance ◽  
The Subject ◽  
The Aesthetic ◽  
Methodology Of Science

Dove Attia and Albert Cohen – French authors and stage directors, and musical producers – contribute to the development of the genre in the XXI century. The subject of this research is their creativity, which is poorly studied by the science of theater. The goal lies in describing the role of Dove Attia and Albert Cohen in the development of the French musical on the theoretical level.  Research methodology is comprised on the following approaches: interdisciplinary, which involves scientific theories and concepts from other fields of knowledge; historical-culturological, which reveals that factors contributing to the convergence of French culture with the traditions of other cultures; systematic, which examines professional performance in French musical as a result of the works of Dove Attia and Albert Cohen. The scientific novelty lies in introduction into the scientific discourse of previously missing materials on the works of Dove Attia and Albert Cohen, their activity in the context of evolution of the genre of French musical. The theoretical significance consists in characterization of the concepts of “French musical of the new century”, "interpretation of classics", “French chanson style” within the framework of art history and methodology of science. The acquired result reveal the role of establishment and proliferation of French musical, as well as popularize the works of Dove Attia and Albert Cohen, which determines the practical importance of this study. It is noted that in French musical, Dove Attia and Albert Cohen invigorate the aesthetic tastes and mentality of the French, using it as an opportunity to defend the national values in a savory and beautiful way.

scholarly journals The role of neuroradiology in intracerebral haemorrhage

2011 ◽  
Vol 2 (1S) ◽  
pp. 31-37
Author(s):  
Daniele Prosetti ◽  
Francesca Vannozzi ◽  
Fabio Scazzeri
Keyword(s):  
Case Report ◽  
Intracranial Haemorrhage ◽  
Case Reports ◽  
Cerebral Haemorrhage ◽  
Diagnostic Process ◽  
Digital Subtraction ◽  
Computerised Tomography ◽  
Diagnostic Role

The neuroradiologist plays a fundamental role in evaluating cerebral haemorrhage, from the clinical suspect until the final diagnosis.The neuroradiologist’s role consists not only in highlighting the presence of an haemorrhage, but also in specifying its localization and its nature, and in assessing, together with the neurosurgeon, the adequate treatment.With the aid of some case reports, this article underlines the role of neuroradiologist in the diagnostic process. For each case report discussed, computerised tomography (CT) and digital subtraction angiography (DSA) findings are given, to better highlight the diagnostic role of these techniques in the detection and characterization of intracranial haemorrhage.

Digital x-ray mapping of nanometer-size supported bimetallic catalysts

1988 ◽  
Vol 46 ◽  
pp. 530-531
Author(s):  
L. T. Germinario
Keyword(s):  
Background Radiation ◽  
Metal Cluster ◽  
Single Element ◽  
Beam Diameter ◽  
X Rays ◽  
X Ray ◽  
Major Interest ◽  
Induced Changes

Understanding the role of metal cluster composition in determining catalytic selectivity and activity is of major interest in heterogeneous catalysis. The electron microscope is well established as a powerful tool for ultrastructural and compositional characterization of support and catalyst. Because the spatial resolution of x-ray microanalysis is defined by the smallest beam diameter into which the required number of electrons can be focused, the dedicated STEM with FEG is the instrument of choice. The main sources of errors in energy dispersive x-ray analysis (EDS) are: (1) beam-induced changes in specimen composition, (2) specimen drift, (3) instrumental factors which produce background radiation, and (4) basic statistical limitations which result in the detection of a finite number of x-ray photons. Digital beam techniques have been described for supported single-element metal clusters with spatial resolutions of about 10 nm. However, the detection of spurious characteristic x-rays away from catalyst particles produced images requiring several image processing steps.

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