scholarly journals The instrumental concerto: classification ISSUES

Author(s):  
Vadym Rakochi

Statement of the problem. The question of classification of instrumental concertos is considered in the paper. It is emphasized that the problem still remains one of the most controversial in musicology. It was noted that there were many attempts to classify the concertos but they are incomplete due to some factors. The main obstacle is a particular flexibility of the concerto resulting in many forms, structures, and forms of performance. In case when a researcher focuses on the analysis of certain characteristics of concertos (cadence, musical form, interpretation of the soloist’s part, concertos of one composer, etc.), the question of classification is out of date. Instead, while covering the evolution of a concerto in general, the need to systematize the latest emerges. Thus, the significance of the concerto’s changes in different historical and socio-cultural conditions and the unequal interpretation of the concept of “genre classification” can be the obstacles, which make the classification process difficult. Among methods used, the following can be outlined: comparative, systematic, structural-functional, and historical approaches have been used to reveal the interaction between the soloists and the orchestra in different historical contexts and to follow up changes in different elements’ interactions. The purpose of the research paper is to offer a cross functional concerto’s classification as well as to reveal the role of the orchestra as a unifying criteria in it. The results obtained prove that the proposed classification of concertos is based on their categorization as the formation of hierarchical relationships between the most of structural elements. All criteria for classifying have been divided into two groups: conceptual (genre features, presence of singer parties, type of interaction, stylistic epoch, “purity of the genre”) and constructive (number of soloists and orchestras, choice of solo instrument, instrumental composition of the orchestra, typical or atypical music forms). All these elements are arranged in a hierarchy, the consequence of subordination levels is explained, multilevel connections between separate components are established. The conclusion was drawn that there is an adequate order of all criteria that allows us to offer a cross functional concerto’s classification. The orchestra plays a key role in it. Six periods of particularly intense correlation between the evolution of the instrumental concerto and the transformations of the orchestra have been disclosed

2020 ◽  
Vol 22 (Supplement_2) ◽  
pp. ii159-ii160
Author(s):  
Roberta Rudà ◽  
Riccardo Pascuzzo ◽  
Francesca Mo ◽  
Alessia Pellerino ◽  
Peter B Barker ◽  
...  

Abstract BACKGROUND There is lack of information on the role of excitatory and inhibitory neurotransmitters in the development of seizures in patients with lower grade gliomas. Increase of glutamate and downregulation of GABA have been suggested in preclinical models and human surgical samples to be associated with brain tumor-related epilepsy. MATERIAL AND METHODS We prospectively investigated with the use of magnetic resonance spectroscopy (MRS) the differences in the ratio of metabolites (glutamate/GABA, glutamate/creatine and GABA/creatine) in the peritumoral areas between patients with or without seizures in a series of lower grade gliomas. Tumors were classified according to WHO Classification of 2016 as follows:11 grade II IDH mutated and 1p/19q codeleted; 3 grade III IDH mutated and 1p/19q codeleted; 6 grade II IDH mutated and 1p/19q intact; 1 grade III IDH mutated and 1p/19q intact; 1 grade II IDH wild-type. Patients received surgery alone or followed by temozolomide chemotherapy according to the presence of risk factors. RESULTS At baseline evaluation, maximum glutamate/GABA values were significantly higher (p=0.023) in the peritumoral area of patients with seizures (1.008 ± 0.368) with respect to those without seizures (0.691 ± 0.170). No other metabolites ratio showed significant differences between the two groups. Similar results were obtained when analyzing the metabolites ratio in the examinations during the follow-up. In the cohort of patients with seizures (n.14) variations of metabolite ratios were not associated with tumor location, 1p/19q codeletion, use of AEDs, concomitant chemotherapy or seizure characteristics (type, duration, frequency). CONCLUSIONS The study is ongoing with the aim of analyzing further the correlations between ratio of metabolites and status of the tumor (stable vs progressive).


2020 ◽  
Author(s):  
Adnan Kabaalioglu ◽  
Nesrin Gunduz ◽  
Ayse Keven ◽  
Emel Durmaz ◽  
Mine Aslan ◽  
...  

Kidney cysts are quite common in adults. Though small simple renal cysts in an adult over 30-40 years of age are not too unusual, however, if the same cysts are seen in a child, and especially if there are additional findings, then several diagnostic possibilities may come to mind. The role of ultrasound, together with the help of intravenous contrast agents and Doppler mode, are very critical in describing the morphologic features and follow-up of the complex or multiple and bilateral renal cysts. These sonographic signs are occasionally specific for diagnosis, but in many cases sonographic clues should be evaluated together with the other genetic and clinical data to reach diagnosis.The first part of this pictorial essay included the introduction into the subject and the classification of non-genetic cystic renal diseases. The key features for the non-genetic cystic renal diseases are illustrated. In the second part, eye-catching features of genetic cystic renal diseases are demonstrated.


2017 ◽  
Vol 18 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Jennifer Larsen ◽  
Nigel Hoggard ◽  
Fiona M McKevitt

The management of low-grade glioma (LGG) is shifting as evidence has emergedthat refutes the previously commonplace imaging-based ‘watch and wait’ approach, in favour of early aggressive surgical resection. This coupled with the recent 2016 update to the World Health Organisation Classification of Tumours of the Central Nervous System is changing LGG imaging and management. Recently in Practical Neurology the contemporary management of low-grade glioma and the changes to this grading system were discussed in detail. 1 In this complementary article, we discuss the role of imaging in the diagnosis, surgical planning and post-treatment follow-up of LGG. We describe the principles of imaging these tumours and use several cases to highlight some difficult scenarios.


2000 ◽  
Vol 15 (1) ◽  
pp. 38-42 ◽  
Author(s):  
F. Mariani ◽  
V. Bianchi ◽  
S. Mancini ◽  
S. Mancini

Objective: To verify the role of sources of non-saphenous reflux in the appearance of reticular varices and telangiectases in areas other than the lateral venous system of Albanese. Setting: Institute of General Surgery and Surgical Specialisations, Interdepartmental Centre of Research, Treatment and Phlebolymphological Rehabilitation, University of Siena. Patients and methods: The study was carried out on 106 women aged 18–65 years who were affected by chronic venous insufficiency (CVI) at the Cla-s Ep Asl stage, according to the CEAP classification. The patients had telangiectases (200 telangiectactic areas) and reticular varices of the lower limbs of type II and III of the classification of Weiss, with competent saphenous trunks and a normal deep venous system. Sclerotherapy was therefore performed, after clinical and duplex ultrasound examination. The records of 185 telangiectactic area treated 3 years earlier were reviewed. Results: In all cases reticular varices was found together with the telangiectases. In 73.5% (147/200 areas) one or more incompetent perforating veins was found (average diameter 1.6 mm) and in 83.6% (123/147 areas) it was possible to establish that the main source of reflux was in the base of the telangiectasia. Complete elimination of microvarices was achieved in 88% of cases (176/200 areas; average sessions: 3.5). The complications were haemosiderin pigmentation (1.5%, 3/200 areas) and matting (1%, 2/200 areas). In 24 areas resistant to the therapy it was not possible to demonstrate the presence of reflux, while in 24.5% of cases (49/200 areas, average surface 15.4 cm2) two sessions of sclerotherapy were sufficient eventually to obtain (about 4 weeks later) the disappearance of the micro-varices. Follow-up after 3 years revealed the appearance of new telangiectases in 58.9% of cases (109/185 check-ups). Of these 95.4% (104/109) arose in areas other than those treated and therefore only 4.6% (5/109) recurred in the area where the sclerosing treatment had been carried out. Conclusion: In CVI all telangiectases are accompanied by reticular varices, even when not visible on clinical examination; in most cases the sources of reflux are distinguishable as incompetent perforating veins and are situated beneath telangiectactic efflorescences.


Cephalalgia ◽  
2008 ◽  
Vol 28 (6) ◽  
pp. 577-584 ◽  
Author(s):  
S Colnaghi ◽  
M Versino ◽  
E Marchioni ◽  
A Pichiecchio ◽  
S Bastianello ◽  
...  

A bibliographical search was conducted for papers published between 1999 and 2007 to verify the validity of International Classification of Headache Disorders (ICHD)-II criteria for the Tolosa-Hunt syndrome (THS) in terms of (i) the role of magnetic resonance imaging (MRI); (ii) which steroid treatment should be considered as adequate; and (iii) the response to treatment. Of 536 articles, 48, reporting on 62 patients, met the inclusion criteria. MRI was positive in 92.1% of the cases and it normalized after clinical resolution. There was no evidence of which steroid schedule should be considered as adequate; high-dose steroids are likely to be more effective both to induce resolution and to avoid recurrences. Pain subsided within the time limit required by the ICHD-II criteria, but signs did not. We conclude that THS diagnostic criteria can be improved on the basis of currently available data. MRI should play a pivotal role both to diagnose and to follow-up THS.


2009 ◽  
Vol 4 (1) ◽  
pp. 74-80 ◽  
Author(s):  
Meng-Fai Kuo ◽  
Huei-Shyong Wang ◽  
Quang-Ting Kuo ◽  
Chia-Tung Shun ◽  
Hey-Chi Hsu ◽  
...  

Object Stathmin, an important cytosolic phosphoprotein, is involved in cell proliferation and motility. This study was performed to elucidate the role of stathmin in the progression of medulloblastoma. Methods The expression of stathmin protein was examined by immunohistochemical staining of tumor sections obtained in 17 consecutive patients with medulloblastoma who underwent resection between 1995 and 2005. Four patients were excluded because they were either lost to follow-up or underwent biopsy sampling only, leaving a total of 13 patients in the study. The stathmin expression was scored according to the immunoreactive fraction of tumor cells, and the level was correlated with various clinicopathological factors. Results The expression level of stathmin protein was ≤ 10% in 9 patients, 11–50% in 1, and > 50% in 3. No staining was seen in the tissues adjacent to the tumors. For comparison, the authors grouped the expression level of stathmin into high (> 50%) and low (≤ 50%). It was found that patients with high expression of stathmin had more frequent tumor dissemination at the time of resection or soon after total excision of the tumor (p = 0.0035), and hence experienced a fulminant course with lower patient survival (p < 0.0001), with an average survival period of 6.7 months (range 2–10 months). The expression level of stathmin did not correlate with patient age, sex, CSF cytological findings, use of adjuvant therapies, Ki 67 index, or risk classification of the tumors according to previously described categories in the literature. Conclusions High stathmin expression correlates with tumor dissemination, is an important prognostic factor of medulloblastoma, and may serve as a useful marker for more intensive adjuvant therapies.


Author(s):  
Soňa Otiepková

Abstract The aim of this research paper is to map, document and classify new, progressive and perspective approaches to colour in product and material design. The purpose is to identify the impact and importance of colour in the creation of new materials and products from an ecological point of view. The majority of current progressive approaches to design creation and research is set in an ecological framework, taking into account their impact on the environment. The question is not whether colour is present in this process, but rather where it stands in this process, whether it can help it and how much it affects it. One of the objectives of this article is to raise awareness in this area and to arouse interest in and discussion on this topic. The theme of colours in design is often overlooked and relegated to the background. The results of several scientific studies on the impact of colour on product evaluation and consumer shopping behaviour suggest the potential of this topic and open up space for further research. In this research paper, we consider the approach of product and material designers and researchers to colour in an ecological context, as a stand-alone design and material creation group. Within this main group, individual approaches can be classified into four basic principles, which the paper defines and describes. They are analysed and researched in more depth through specific examples of the work of various designers. The principles have no fixed boundaries, they are not isolated. They influence or follow each other. This classification of the approach to colour in an ecological context allows us primarily to talk about it more professionally and attempt to define its importance and role in individual approach. Ultimately, it helps us answer the question of whether and how colour can affect the process of changing human interaction with the environment.


Author(s):  
Yves Saban ◽  
Sylvie de Salvador

AbstractThe multiplication of scientific articles related to the fast-growing interest in preservation rhinoplasty (PR) may lead to confusion in the decision-making process, thus requiring a need for guidelines through a focus on benefit–risk ratio and revisions. This study analyzes a 352 consecutive primary rhinoplasties series during a 3 year (2016 to 2019) period with 1-year follow-up. The evaluation of the most appropriate procedure to the patient's nasal anatomy and expectations requires to correlate (1) a convenient classification of nasal profile lines; (2) a review of the dorsum preservation techniques (DP) classified as: full DP, DP + resurfacing, bony cartilaginous disarticulation, and finally traditional rhinoplasty; (3) the role of septoplasties, subdividing this series in two main groups; (4) analyzing the revisions in the different subgroups and to the literature. Thirty-five revisions (9.94%) were done. Correlations between profile lines, surgical procedures, and revisions show (1) 129 straight noses underwent full DP in 88 cases with 5.68% revisions; however, DP+ hump resurfacing in 32 patients with no revision. (2) Among 71 tension noses, 33 underwent full DP with 6 revisions (18.18%), while 32 patients had bony cap resurfacing, 1 revision (3.13%). (3) Among 109 kyphotic noses, 64 patients underwent DP + resurfacing with 10 revisions (15.63%); 27 patients had cartilage-only DP with two revisions (7.41%). (4) In the 43 difficult noses group, revisions were done equally in DP + resurfacing and cartilage-only subgroups. Septum stability modifies the correlations, introducing Cottle's septorhinoplasty in the paradigm. The revision rate is jumping ×2.50% when a septoplasty is associated with the rhinoplasty. Correlated to the benefit–risk ratio and the revisions, the following guidelines may be suggested in primary rhinoplasty: (1) Straight noses: full DP, (2) tension noses: DP + dorsum resurfacing and/or Cottle's variations, (3) kyphotic noses: cartilage-only DP, and (4) difficult noses: traditional rhinoplasties.


2000 ◽  
Vol 3 (2) ◽  
pp. 290-307
Author(s):  
R. P. Van der Merwe

Psychometric tests are widely used as aids in occupational decisions, including the selection and classification of human resources. Recent and ongoing developments in South African labour legislation, especially the implications of the Employment Equity Act, highlight once again the importance of validating all instruments used for assessment and selection purposes. This is a follow-up study, reporting on an investigation into psychometric testing in industry today. Information was gathered to establish which psychometric tests are presently used, and for what purpose. Biographical information on each company concerned is supplied, including the number of employees. The role of psychometric tests in the selection procedure is discussed, as well as the levels at which the tests were applied. The various tests used, as well as the users, are indicated, and comments, recommendations and shortcomings discussed.


Author(s):  
Priyanka. R ◽  
Jiji V ◽  
Asha Sreedhar

Ovarian cystic masses are a common problem encountered in daily gynecological practice. Data reveals the prevalence of ovarian cyst vary widely. Reports suggest that between 8 and 18% of both premenopausal and postmenopsusal women have ovarian cyst. Most of the cysts are asymptomatic and discovered only in routine ultrasonography. Some of them are highly symptomatic hindering day to day activities of women. Symptoms depend to a large extent on the size of cysts. Modern management includes combined oral contraceptive pills and surgical management, if cysts continue to grow after 3 months of treatment. Since the oral contraceptive pills contribute many untoward effects, the need for alternative management especially in patients who wish to avoid surgical intervention is on high demand. Ayurveda addresses ovarian cyst under the broad classification of Granthi in which it can be correlated to Kaphaja Granthi in particular. A 27 year female patient married since 8 months, detected with Ovarian Cyst of size 6.6 x 6.1cm and complaining of severe lower abdominal pain, dyspareunia, bloating of abdomen, and burning micturition was treated according to Ayurvedic principles. Patient was given Kanchanara guggulu, Sukumaram kashayam, Guggulu panchapala churnam & Gomutra haritaki for a period of two months. Follow up USG showed complete disappearance of cyst and symptoms also subsided to a great extent. The present study emphasizes the role of Ayurveda in bringing a positive result in the management of ovarian cyst.


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