CONCEPT OF PYTHAGOREAN THEOREM AND TRIPLES AND ITS EXPANSION SINCE EARLY PERIOD TO MEDIEVAL PERIOD IN INDIA

2021 ◽  
Vol 87 (5-6) ◽  
pp. 190
Author(s):  
KANTA PRASAD SINHA
Keyword(s):  
Early Period ◽  
Pythagorean Theorem ◽  
Medieval Period

scholarly journals Historical perspective of neurology in Iran

2019 ◽  
Author(s):  
Shri Kant-Mishra ◽  
Hadi Mohammad Khanli ◽  
Golnoush Akhlaghipour ◽  
Ghazaleh Ahmadi Jazi ◽  
Shaweta Khosa1
Keyword(s):  
Historical Perspective ◽  
Medical Center ◽  
Medical Science ◽  
Early Period ◽  
Medieval Period ◽  
Neurologic Diseases ◽  
The Past ◽  
Modern Period ◽  
History Of ◽  
Modern Era

Iran is an ancient country, known as the cradle of civilization. The history of medicine in Iran goes back to the existence of a human in this country, divided into three periods: pre-Islamic, medieval, and modern period. There are records of different neurologic terms from the early period, while Zoroastrian (religious) prescription was mainly used until the foundation of the first medical center (Gondishapur). In the medieval period, with the conquest of Islam, prominent scientists were taught in Baghdad, like Avicenna, who referred to different neurologic diseases including stroke, paralysis, tremor, and meningitis. Several outstanding scientists developed the medical science of neurology in Iran, the work of whom has been used by other countries in the past and present. In the modern era, the Iranian Neurological Association was established with the efforts of Professor Jalal Barimani in 1991.

The evolution of trinity images to the medieval period

2017 ◽  
Vol 13 ◽  
pp. 93-110
Author(s):  
Balderstone Susan
Keyword(s):  
Early Period ◽  
Medieval Period ◽  
Abstract Ideas ◽  
Artistic Works ◽  
Theological Debate ◽  
Catholic Churches ◽  
The Trinity ◽  
The Way

This paper investigates an association between the iconography used in artistic works and theological positions in the great debates over the nature of Christ and the Trinity. It looks at how the iconography evolved up to the medieval period with the schism between the Orthodox and Catholic churches and beyond. It is proposed that there was dogmatic intent which related to the ongoing theological debate. This is demonstrated by the chronological correlation between specific markers in the debate and changes in the way the Trinity was depicted. Acknowledged authority Andre Grabar considered that changes were due to the essential inadequacy of pictorial means to depict abstract ideas, and a striving by artists and image makers to capture them in different ways. He did not relate dated images to events in theological history, but referred to a "general confusion" of ideas in the early period due to the theological debates. However, it can be seen that there was a correlation between the chronology of the debate and iconographic development of all four main 'types' of the Trinity.

scholarly journals Plutej ograde svetišta iz memorije Sv. Tripuna u Kotoru

Ars Adriatica ◽  
2016 ◽  
pp. 7
Author(s):  
Pavuša Vežić
Keyword(s):  
Early Period ◽  
Medieval Period ◽  
Early Medieval ◽  
Central Section ◽  
Scholarly Literature ◽  
Early Medieval Period ◽  
The Right

The author discusses a marble pluteus discovered in 1906 in the Kotor cathedral, where it was incorporated in the main altar as a spolium. Apparently, it originally belonged to the chancel screen in the sanctuary of St Tryphon, constructed in the early 9th century, of which only remnants of the foundation layer have been preserved. The pluteus has been analysed on several occasions, with the results published in scholarly literature, and most experts have justly dated it to the early period of pre-Romanesque sculpture in Dalmatia. Its front features a relief with geometric and vegetal ornaments. To the left, there is a panel with knotted triangles along the edge and rhombuses in the central section. The panel to the right contains two arcades with crosses underneath. Special attention has been paid to the relatively numerous ornaments on similar plutei in areas of Adrio-Byzantine tradition, in Roman cities of the Istrian and Dalmatian coastlines. Thereit combines with influences from Lombard and Carolingian centres, and in this combination it is also present in the area of the ancient Croatian state and other Sclavinias. The pluteus of Kotor is a telling element in the discussion on numerous similar relief arrangements and ornaments in the sacral art of the Adriatic cultural circle during the early medieval period.

Neuron-glia relationship during the early postembryonic development of the nervous system in some oligochaetes

1978 ◽  
Vol 36 (2) ◽  
pp. 600-601
Author(s):  
Wiktor Djaczenko ◽  
Carmen Calenda Cimmino
Keyword(s):  
Nervous System ◽  
Glial Cells ◽  
Early Period ◽  
Postembryonic Development ◽  
Ruthenium Red ◽  
The Body ◽  
Tubifex Tubifex ◽  
Growth Stages ◽  
Cell Processes ◽  
Cytoplasmic Processes

The simplicity of the developing nervous system of oligochaetes makes of it an excellent model for the study of the relationships between glia and neurons. In the present communication we describe the relationships between glia and neurons in the early periods of post-embryonic development in some species of oligochaetes.Tubifex tubifex (Mull. ) and Octolasium complanatum (Dugès) specimens starting from 0. 3 mm of body length were collected from laboratory cultures divided into three groups each group fixed separately by one of the following methods: (a) 4% glutaraldehyde and 1% acrolein fixation followed by osmium tetroxide, (b) TAPO technique, (c) ruthenium red method.Our observations concern the early period of the postembryonic development of the nervous system in oligochaetes. During this period neurons occupy fixed positions in the body the only observable change being the increase in volume of their perikaryons. Perikaryons of glial cells were located at some distance from neurons. Long cytoplasmic processes of glial cells tended to approach the neurons. The superimposed contours of glial cell processes designed from electron micrographs, taken at the same magnification, typical for five successive growth stages of the nervous system of Octolasium complanatum are shown in Fig. 1. Neuron is designed symbolically to facilitate the understanding of the kinetics of the growth process.

Image quality vs data obtainment in biological electron microscopy

1986 ◽  
Vol 44 ◽  
pp. 42-43
Author(s):  
J. E. Johnson
Keyword(s):  
Electron Microscopy ◽  
Endoplasmic Reticulum ◽  
Electron Beam ◽  
Image Quality ◽  
High Speed ◽  
Early Period ◽  
Early Years ◽  
Fluorescent Screen ◽  
Embedding Medium

In the early years of biological electron microscopy, scientists had their hands full attempting to describe the cellular microcosm that was suddenly before them on the fluorescent screen. Mitochondria, Golgi, endoplasmic reticulum, and other myriad organelles were being examined, micrographed, and documented in the literature. A major problem of that early period was the development of methods to cut sections thin enough to study under the electron beam. A microtome designed in 1943 moved the specimen toward a rotary “Cyclone” knife revolving at 12,500 RPM, or 1000 times as fast as an ordinary microtome. It was claimed that no embedding medium was necessary or that soft embedding media could be used. Collecting the sections thus cut sounded a little precarious: “The 0.1 micron sections cut with the high speed knife fly out at a tangent and are dispersed in the air. They may be collected... on... screens held near the knife“.

Direct Assessment of Effective Renal Plasma Flow from Renoscintigraphy with a Gamma Camera and an On-Line Computer

1981 ◽  
Vol 20 (06) ◽  
pp. 274-278
Author(s):  
J. Liniecki ◽  
J. Bialobrzeski ◽  
Ewa Mlodkowska ◽  
M. J. Surma
Keyword(s):  
Count Rate ◽  
Renal Plasma Flow ◽  
Early Period ◽  
Least Square Method ◽  
Least Square ◽  
Uptake Coefficient ◽  
Positive Linear Correlation ◽  
On Line ◽  
Best Fit ◽  
Plasma Activity

A concept of a kidney uptake coefficient (UC) of 131I-o-hippurate was developed by analogy from the corresponding kidney clearance of blood plasma in the early period after injection of the hippurate. The UC for each kidney was defined as the count-rate over its ROI at a time shorter than the peak in the renoscintigraphic curve divided by the integral of the count-rate curve over the "blood"-ROI. A procedure for normalization of both curves against each other was also developed. The total kidney clearance of the hippurate was determined from the function of plasma activity concentration vs. time after a single injection; the determinations were made at 5, 10, 15, 20, 30, 45, 60, 75 and 90 min after intravenous administration of 131I-o-hippurate and the best-fit curve was obtained by means of the least-square method. When the UC was related to the absolute value of the clearance a positive linear correlation was found (r = 0.922, ρ > 0.99). Using this regression equation the clearance could be estimated in reverse from the uptake coefficient calculated solely on the basis of the renoscintigraphic curves without blood sampling. The errors of the estimate are compatible with the requirement of a fast appraisal of renal function for purposes of clinical diagknosis.

Strontium 87m Scanning of Pelvic Bones

1968 ◽  
Vol 07 (01) ◽  
pp. 28-36 ◽  
Author(s):  
Władysław Jasiński ◽  
Janina Malinowska ◽  
Henryk Mackiewicz ◽  
Henryk Siwicki ◽  
Krystyna Lukawska
Keyword(s):  
Body Weight ◽  
Differential Diagnosis ◽  
Early Diagnosis ◽  
Femoral Neck ◽  
Early Period ◽  
Early Recurrence ◽  
Physical Activities ◽  
External Irradiation ◽  
Pelvic Bones ◽  
Strontium 87M

SummaryThe purpose of this investigation was to study the accumulation of 87mSr in the proximal parts of the femoral bones of patients treated previously by external irradiation due to cancer of the uterine cervix. It was assumed that this method may be used in the future for the early diagnosis of postirradiation changes of bone (osteoradionecrosis).The incidence of postirradiation changes of the femoral neck among 5735 patients treated between 1950 and 1961 at the Department of Gynaecology of the Institute, was 0.8%. In the early period of postirradiation changes the patients complain only of pain and limitation of physical activities. If radiological and gynaecological findings were negative, the differential diagnosis between early recurrence and early osteoradionecrosis became impossible.49 selected patients were scanned after intravenous injection of 10—115 μCi of 87mSr per kg of body weight (0.5 up to 6.0 mCi). Illustrative cases of normal pelvic bones as well as postirradiation changes are presented and discussed. The authors conclude that the findings justify further systematic studies on the morphology of accumulation of 87mSr in the bones.

Classifying the Past: Discriminant Analysis and its Application to Medieval Farming Systems

1996 ◽  
Vol 8 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Ken Bartley
Keyword(s):  
Cluster Analysis ◽  
Discriminant Analysis ◽  
Processing Time ◽  
Farming Systems ◽  
Frame Of Reference ◽  
Analytical Models ◽  
Successful Implementation ◽  
Medieval Period ◽  
The Past ◽  
Livestock Management

This paper discusses the need for nationally based analytical models of the medieval period. The use of cluster analysis as a method for classifying demesne farms, by the crops they grew and their livestock management, is explained. Successful implementation of cluster analysis requires both the existence of a large base sample, to permit isolation of specific groupings within the data, and access to considerable processing time. The paper concludes by demonstrating how discriminant analysis can provide an efficient and systematic way of classifying even a single manor within a national frame of reference.

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