scholarly journals Investigation of Microorganisms Deteriorating Ancient Ola Leaf Manuscripts

Author(s):  
Young-Hee Kim ◽  
Kyoung-Hwa Choi ◽  
Jin-Young Hong ◽  
Jeung-Min Lee ◽  
Soo-Ji Kim ◽  
...  

AbstractOla leaf manuscripts from Sri Lanka date back to several centuries. While they have been well preserved over the last century, their condition has worsened in recent years when black dots caused by microorganisms started occurring on their surface. In this study, the current state of preservation and the factors causing deterioration are examined using microscopy techniques. Microscopic images clearly show that the manuscripts are contaminated by microorganisms which penetrated deeply into the carrier material, destroying the internal structure. A Penicillium griseofulvum strain was recognized as the most active microorganism in xylan degradation. Sri Lanka’s climate provides favorable conditions for the growth of these fungi. Therefore, it is suggested that temperature and humidity of the archival space should be better controlled in order to ensure the Ola leaf manuscripts’ long-term preservation.

2021 ◽  
Vol 1 (6) ◽  
pp. 36-40
Author(s):  
A. M. Osadchuk ◽  
I. D. Loranskaya ◽  
M. A. Osadchuk

IBS-like syndromes are one of the most important problems in gastroenterology. The clinical picture is identical to that of irritable bowel syndrome can be associated with inflammatory bowel disease, colorectal cancer, celiac disease, food allergy, lactase deficiency enteropathy, non-celiac sensitivity, gluten and other diseases. In this regard, irritable bowel syndrome is a diagnosis of exclusion and always requires a rather complex differential diagnosis to establish the true cause of the disease, conduct adequate therapy and achieve a stable remission. The purpose of the review was to obtain scientific knowledge about IBS-like syndromes and to develop optimal management tactics for these patients. The review demonstrates that the clinical manifestations of IBS are largely nonspecific due to the frequent transition of one form of the disease to another, which creates certain difficulties in making a diagnosis. Timely diagnosis of IBS-like syndromes, often superimposed on the already existing IBS pathology, significantly improves the results of treatment of patients with intestinal symptoms and ensures long-term preservation of remission of the disease.


2004 ◽  
Vol 33 (1) ◽  

Recognizing repeated concerns over the current state of knowledge about long-term digital preservation, the National Science Foundation and the Library of Congress convened a workshop entitled “Research Challenges in Digital Archiving and Long-term Preservation” in April 2002. The main goals of the workshop were to identify the research challenges in digital archiving and long-term preservation; set priorities for research based on input from stakeholders; and propose mechanisms that could build a community of researchers and foster cross-fertilization among research projects. The workshop consisted of plenary presentations and discussions of the various challenges in digital archiving as well as small group sessions to define and set priorities for research. It also provided an opportunity for experts in computer science, mass storage systems, archival science, digital libraries, and information management to discuss obstacles to preserving digital information with government managers and other stakeholders. This report presents a summary of the workshop discussions and recommendations for future research projects.


1970 ◽  
Vol 6 (1) ◽  
pp. 202-214
Author(s):  
Олена Савченко

У статті розглядається рефлексивна компетентність як інтегративне особистісне утворення, що формується в ході набуття суб’єктом рефлексивного досвіду при застосуванні різних форм рефлексивної активності, спрямованих на розв’язання визначених рефлексивних задач. У структурі рефлексивної компетентності оцінно-мотиваційний компонент виконує наступні функції: оцінку форм рефлексивної активності та її результатів, прогнозування можливих змін у процесі розв’язування проблемно-конфліктних ситуацій, визначення пріоритетних завдань подальшого розвитку себе як суб’єкта рефлексивної активності. На когнітивному рівні функціонує система критеріїв оцінювання власних форм рефлексивної активності, яка характеризується ступенем когнітивної складності, що відображає рівень диференціації та інтеграції системи. Функціонування оцінно-мотиваційного компонента на метакогнітивному рівні забезпечує система здібностей до прогнозування власної активності. Особистісний рівень представлений системою життєвих задач на саморозвиток, які стимулюють суб’єкта докладати зусилля щодо розвитку в себе певних якостей, формування певних вмінь та знань. Розрізненість елементів компонента є індикатором незавершеності процесу формування його внутрішньої структури, низький рівень інтеграції окремих складових не дозволяє системі ефективно компенсувати недорозвинені елементи. Найбільшу вагу у внутрішній структурі оцінно-мотиваційного компонента має показник сформованості системи здібностей до прогнозування власної активності, що підтверджує системотвірну функцію структур метакогнітивного рівня. In the article the reflective competence is seen as an integrative personal formation which develops in the process of acquiring of the reflective experience, when the subject is using various forms of the reflective activity for the solving of specific reflective tasks. In the structure of the reflective competence the value-motivational component performs such functions: an evaluation of forms of the reflective activity and its results, a prediction of the possible changes in the process of solving of the problem-conflict situations, a determining of the priorities for further development of himself as a subject of the reflective activity. The system of the criteria of an evaluating of the reflective activity`s forms functions on the cognitive level of the reflective competence. The level of the cognitive complexity is the basic feature of this system. The predictive abilities` system, that allows to form the expectations of the activity`s results, presents the value-motivational component on the metacognitive level. The system of the life tasks for the self-development, which stimulates the subject to make efforts to develop his own qualities, to form specific skills and knowledge, functions on the personal level. The fragmentation of the elements is an indicator of the incompleteness of the formation of the internal structure of the value-motivational component. The low level of integration of the separate elements does not allow effectively to compensate the functioning of the unformed elements of the system. The index of the formation of the abilities to predict his own activity has the greatest meaning in the internal structure of the value-motivational component. These data confirm the hypothesis about the system-forming function of the metacognitive structures that unite other structures. Thus the development of the predictive abilities will promote the increase of the abilities to the prediction of the others` behavior. An adequate assessment of other people significantly reduces the inconsistency of his own expectations and estimations of others. The development of the predictive abilities creates favorable conditions for the formation of the life tasks for the self-development to increase their value in the system of other tasks


Author(s):  
Tatiana Vasilievna Pomogaeva ◽  
Aliya Ahmetovna Aseinova ◽  
Yuriy Aleksandrovich Paritskiy ◽  
Vjacheslav Petrovich Razinkov

The article presents annual statistical data of the Caspian Research Institute of Fishery. There has been kept track of the long term dynamics of the stocks of three species of Caspian sprat (anchovy, big-eyed kilka, sprat) and investigated a process of substituting a food item of sprats Eurytemora grimmi to a small-celled copepod species Acartia tonsa Dana. According to the research results, there has been determined growth potential of stocks of each species. Ctenophoran-Mnemiopsis has an adverse effect on sprat population by eating fish eggs and larvae. Ctenophoram - Mnemiopsis is a nutritional competitor to the full-grown fishes. The article gives recommendations on reclamation of stocks of the most perspective species - common sprat, whose biological characteristics helped not to suffer during Ctenophoram outburst and to increase its population during change of the main food item. Hydroacoustic survey data prove the intensive growth of common sprat biomass in the north-west part of the Middle Caspian. According to the results of the research it may be concluded that to realize the volumes of recommended sprat catch it is necessary to organize the marine fishery of common sprat at the Russian Middle Caspian shelf.


GlaucomaNews ◽  
2020 ◽  
pp. 65-69
Author(s):  
T.E. Lipatkina ◽  
◽  
Е.V. Karlova ◽  
A.V. Zolotarev ◽  
◽  
...  

Patients with primary open-angle glaucoma (POAG) and ophthalmic hypertension have an increased likelihood of developing occlusions (thrombosis) of the central retinal vein. Different groups of antihypertensive drugs differ in their mechanism of action and may affect concomitant ocular pathology, in particular, retinal edema, which occurs, for example, in occlusion of the central retinal vein. Used in most patients with glaucoma, prostaglandin analogs can contribute to the long-term preservation of macular edema due to the effect on the permeability of the vascular wall. Preparations of other pharmacological groups, reducing the production of aqueous humor, on the contrary, may contribute to its regression. Therefore, the question of choosing a drug for antihypertensive therapy in patients with primary open-angle glaucoma and concomitant macular edema is relevant and is for further study.


Author(s):  
V. M. Artyushenko ◽  
D. Y. Vinogradov

The article deals with the issues related to the problem of ballistic design of the space system of remote sensing of the Earth on stable near-circular solar-synchronous orbits with long-term existence of spacecraft. We propose a rational method of maintaining a solar-synchronous orbit in given light conditions with prolonged active lifetime of space systems. In solving this problem, the total time of normal operation of the system for a given period of operation, during which the most favorable conditions for the use of spacecraft are provided on the main parts of orbits, is taken as a target function.


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