Chemical composition of seed saponins as a guide to the classification of Medicago species

1992 ◽  
Vol 70 (7) ◽  
pp. 1384-1387 ◽  
Author(s):  
M. Jurzysta ◽  
S. Burda ◽  
W. Oleszek ◽  
M. Ploszynski ◽  
E. Small ◽  
...  

The presence of saponins and their aglycones (sapogenins) was surveyed in seeds of 33 species of Medicago (Fabaceae). The four major subsections of the largest taxonomic section of Medicago, section Spirocarpos, can generally be distinguished by presence and (or) absence of medicagenic acid and zanhic acid. The latter sapogenin was found only in three of the subsections of Spirocarpos and seems to reflect the phylogenetic recency of these groups within Medicago. The distribution of zanhic acid in combination with other considerations proved useful in establishing that Medicago granadensis seems to be the oldest species in subsection Intertextae. The saponin profile of Medicago hybrida, most recently assigned to section Medicago, strongly supports the placement of this species and its relative Medicago sufruticosa in a separate section. Hemolytic saponins proved to be much more common in those species of Medicago that retain their seeds permanently within the fruit compared with species that tend to scatter their seeds, possibly because the former can benefit more from the antiherbivorous and (or) allelopathic properties of the saponins. Key words: hemolytic saponins, chemotaxonomy, taxonomy, ecology, Medicago.

Author(s):  
Marupova Manzura Aminovna ◽  
Ahadjonov Mavlonjon Mahmudjon o’g’li ◽  
Kosimova Hafizakhon

This article gives the types, meaning, application and classification of fungicides and herbicides. The role of the International Convention on the classification of goods, the significance of the State chemical Commission, as well as suggestions for improving their classification and certification of these substances in the commodity nomenclature of Foreign economic activity (HS code). KEY WORDS: pesticide, herbicide, fungicide, plant pathogenic fungi, commodity nomenclature of foreign economic activity, position, subitem, sub-subitem, ingredient, indicator.


2019 ◽  
pp. 40-44
Author(s):  
Van Huy Tran ◽  
Duy Lieu Dinh

Background: Efficacy of continuous intravenous proton- pump inhibitors (IV PPI) and hemoclips alone was proved, but data about combination of an application of endoscopy clips and intermittent IV PPI in Vietnam was still limited. This study aimed to assess the efficacy of endoscopy hemoclip combined with intermittent IV PPI in the patients of peptic ulcer bleeding. Patients and methods: 34 patients diagnosed as peptic ulcer bleeding, having Forrest classification of Ia, Ib, IIa and IIb, were enrolled. Esomeprazole was administered as 80 mg IV bolus followed by intermittent IV injection of 40 mg/8h during 72h. Results: Immediate hemostasis was achieved in all 34 patients. Only 1 patient (2.9%) had early rebleeding. No severe complications was found in this study. Conclusion: Combination of endoscopy hemoclips and intermittent PPI showed effective, safe in patients of peptic ulcer bleeding. Key words: Peptic ulcer bleeding, intermittent PPI, endoscopy hemoclip


2020 ◽  
pp. 84-89
Author(s):  
Inna Ivanovna Lapkina

Today, around 50 million people worldwide suffer from cataracts, more than a half of them need surgical treatment. High prevalence of this pathology in Ukraine, the need to improve the provision of ophthalmic care to patients, and the reform of the health care system have made the research relevant. Concomitant diseases and special conditions of the eye increase the risk of intra− and postoperative complications, worsen the functional parameters of patients after surgery. In order to develop a unified approach to the treatment of complicated cataracts based on diagnostically related groups of patients, a retrospective analysis of case histories of patients with different variants of complications related to the condition of the lens itself, its ligament apparatus and other structures of the eye was conducted. In each case, the surgeon has to choose the appropriate modification of cataract phacoemulsification surgery. The study proposed the classification of cataract phacoemulsification modifications on the basis of the techniques and the sequence of operation stages, taking into account the classification of the degrees of turbidity of the lens, proposed by L. Buratto. It has been noted that in complicated cases, according to the indications of the patient, surgery may be performed on several modifications of cataract phacoemulsification. The developed classification made it possible to generalize the various variants of pathology and greatly facilitate the choice of tactics of surgical treatment in complicated cataracts. It can be used not only for practical application, but also for improving the qualification of trained professionals. The prospect of further research is to identify contraindications for outpatient treatment of the patients with complicated cataracts. Key words: cataract complication, classification of phacoemulsification modifications, diagnostically related groups.


1991 ◽  
Vol 71 (3) ◽  
pp. 943-946 ◽  
Author(s):  
S. Freyman ◽  
P. M. Toivonen ◽  
W. C. Lin ◽  
P. W. Perrin ◽  
J. W. Hall

Increasing rates of field nitrogen (N) application (0, 100, 200, 300, 400 and 500 kg N ha−1) resulted in markedly higher yields of winter white cabbage (Brassica oleracea L. var. capitata 'Bartolo') due to larger head size. Glucose and fructose contents increased with increased nitrogen. In contrast, ascorbic acid and sucrose contents declined slightly with increased nitrogen. Nitrogen rate had little effect on storage losses. The results indicated that increased N fertilization provided overall benefit to cabbage production. Key words: Cabbage, nitrogen fertilization, storage losses, yield


2017 ◽  
pp. 84-87
Author(s):  
O.V. Islamova ◽  

The main data on general issues of epidemiology, etiology, pathogenesis and classification of chronic glomerulonephritis (CGN) in Ukraine were described in the article. The main information on the peculiarities of this clinic disease in pregnant women, on the course and complications of pregnancy, features of fetal development in pregnant women suffering from chronic pyelonephritis were highlighted. Separately, the questions devoted to the optimal tactics of diagnosis and treatment of CGN in pregnant women with characteristics of medicines and their groups applicable in this category of patients are disclosed. The rules for management of pregnancy, delivery and postpartum period are described. Key words: сhronic glomerulonephritis, pregnancy, treatment.


2021 ◽  
Vol 08 (03) ◽  
pp. 16-19
Author(s):  
Gülüstan Nağı qızı Əliyeva ◽  

The scientific article provides detailed information about silyubum marianum and dandelion. Their chemical composition, therapeutic properties against liver, bile and other diseases, and their use in cosmetology were discussed. The article also discusses the benefits of silymarin in the treatment of cancer and osteoporosis. The components of silyubum marianum and dandelion plants have been announced. Distribution zones of silyubum marianum and dandelion plants in the world and in Azerbaijan have been noted. The rules of use of plants are also reflected in the article. Key words: plant, silyumarin, thorns, liver, seeds, silibinin.Carduelis,carotene


Author(s):  
Colene Hind ◽  
Renier Steyn

<p><strong>Background:</strong> Corporate entrepreneurship (CE) is credited for many positive organisational outcomes, including systemic growth and increased revenue. Several terms associated with CE, including strategic renewal, corporate venturing and intrapreneurship are frequently used interchangeably and often confuse scholars, researchers and practitioners. The lack of clarity about the exact meaning of these terms is detrimental to the synergy in the current body of knowledge and the development of models involving these concepts. Objective: The aim of this paper was to describe CE as a unique concept, distinguishable from related concepts. Methodology: Several definitions of CE as well as the related terms were dissected, to identify core elements associated with each of them. The validity of these comprehensive definitions was tested by requesting 68 master’s degree students to classify the definitions. Inter-rater reliabilities were calculated in order to assess the level of agreement in the classification of the constructs. Results: The results indicate that CE is difficult to distinguish from strategic renewal and corporate venturing, but that intrapreneurship seems to be better defined and separate from the other constructs. Conclusion: These results emphasise the conceptual confusion that exists around CE and the need for further clarification of terminology.</p><p><strong>KEY WORDS</strong></p><p>Corporate entrepreneurship, strategic renewal, corporate venturing, intrapreneurship.</p>


2020 ◽  
Vol 69 ◽  
pp. 36-44
Author(s):  
Yarema Kravets’ ◽  

Purpose: The article is devoted to the Sorbian studies work of the Italian Slavic scholar of Lusatian origin Wolfango Giusti (1901-1980) “The Folk Lusatian Serbian Song” (1926), totally unknown in Ukrainian Slavic scholars’ circles. The author of a large number of Sorbian studies publications printed in the 1920s and 1930s in the pages of Italian Slavic editions, he became a true popularizer of Lusatian culture, and his works found a special reverberation in the research papers of authoritative Sorbian scholars. W. Giusti’s name as researcher and translator has recently been more frequently mentioned in Slavistic publications, his interest in Ukrainian poetry, esp. in the 1920s, is written about. The interest in W. Giusti’s literary legacy is linked, in particular, to his being interested in T. Shevchenko’s and M. Shashkevych’s lyrics. In the research under analysis, the Italian scholar stressed that “the soul of the Lusatian people has found its best and fullest expression in their folk song”. Also mentioned by W. Giusti were Ukrainian folk songs, rich in their multi-genre samples. Results: The paper presents a classification of the most characteristic folk songs, the classification coming to be basis-providing for the Italian scholar: W. Giusti relied on authoritative research papers, including those by the scholars K. Fiedler and B. Krawc. The Italian Slavicist acquaints us with songs of love between brother and sister, love songs about the way of life of the whole people, songs resonating with the motif of fidelity. Neither has the literary scholar bypassed the issue of the neighbouring peoples’ influence experienced by Lusatian culture, particularly that of a Germanic culture, providing some examples of a “spiritual analogy” with German folk songs. W. Giusti completed his short essay by promising to offer the reader, before long, “other genres of the extremely rich Lusatian folklore”. The promise came to be fulfilled as early as the next year, in the work published under the title “Folk Lusatian Serbian Songs”. Key words: Lusatian folklore, Wolfango Giusti, folk song, motif of fidelity/infidelity, dramatic mood, classification of songs, aspects of “Wendish” folklore, Germanic influence.


The classification of human geographical subjects, their common and distinctive features has been noted. The place of geography of religion in the system of human geographical sciences has been traced. The object and subject of study of geography of religion has been identified. The regional investigations of sphere of religion have been analysed and approaches to its study have been systemized. Key words: geography of religion, sacred geography, religious sphere, social geography, human geography.


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