scholarly journals Tatyana Yakovlevna Serebryakova: a forgotten hemp expert

2021 ◽  
Vol 182 (4) ◽  
pp. 166-171
Author(s):  
J. M. McPartland
Keyword(s):  
Cannabis Sativa ◽  
Historical Archives ◽  
Taxonomic Research ◽  
The Subject

Tatyana Yakovlevna Serebryakova (1893-?) conducted taxonomic research on Cannabis sativa L. for 20 years. She published important papers and a book on the subject. Next to every great man stands a great woman, and Serebryakova was Vavilov’s hemp expert. Yet her biography has never been written, and many details are lost. We have reconstructed her history based on historical archives, her publications, and her-barium specimen labels. Highlights of her scientific contributions are presented.

scholarly journals Cannabidiol (CBD) as a Promising Anti-Cancer Drug

Cancers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3203 ◽  
Author(s):  
Emily S. Seltzer ◽  
Andrea K. Watters ◽  
Danny MacKenzie ◽  
Lauren M. Granat ◽  
Dong Zhang
Keyword(s):  
Organic Molecules ◽  
Cannabis Sativa ◽  
Mechanisms Of Action ◽  
Review Article ◽  
Cancer Drug ◽  
Major Focus ◽  
Chemical Structures ◽  
Anti Cancer ◽  
Potential Applications ◽  
The Subject

Recently, cannabinoids, such as cannabidiol (CBD) and Δ9-tetrahydrocannabinol (THC), have been the subject of intensive research and heavy scrutiny. Cannabinoids encompass a wide array of organic molecules, including those that are physiologically produced in humans, synthesized in laboratories, and extracted primarily from the Cannabis sativa plant. These organic molecules share similarities in their chemical structures as well as in their protein binding profiles. However, pronounced differences do exist in their mechanisms of action and clinical applications, which will be briefly compared and contrasted in this review. The mechanism of action of CBD and its potential applications in cancer therapy will be the major focus of this review article.

scholarly journals Авторские дополнения «Этюдов по истории приволжских калмыков» Н. Н. Пальмова 1929–1932 гг.

2021 ◽  
Vol 14 (4) ◽  
pp. 797-805
Author(s):  
Alexander V. Tsyuryumov ◽  
◽  
Andrew A. Kurapov
Keyword(s):  
Significant Contribution ◽  
Scientific Literature ◽  
Important Data ◽  
Scientific Heritage ◽  
Valuable Data ◽  
Historical Archives ◽  
State Museum ◽  
History Of ◽  
New Material ◽  
The Subject

Introduction. The article examines additional comments (1929–1932) made by Professor N. N. Palmov on his Essays on the History of the Volga Kalmyks (1926). Goals. The study seeks to introduce this new material which shows the scholar’s persistent interest in the subject and, at the same time, contributes to a better understanding of the history of the Kalmyk Khanate. Materials and Methods. The research involved the identification of the chronological framework of the handwritten material, its categorization into thematic blocks, and contribution to the subject. Results. In the library of Astrakhan State Museum of Historical Archives, the authors discovered thirty seven handwritten additions made by Palmov on the pages of his copy of Essays on the History of the Volga Kalmyks, vols. I–II. These were made between 1929 to 1932 when the scholar apparently continued his studies on the subject using the materials of Astrakhan Kalmyk Archives and scientific literature. The author’s comments covering the period up to the 1760s contain valuable data on the 1702 conflict between Khan Ayuka and his sons and provide detail on the feudal conflict of 1724. Also, Palmov provides additional evidence on Noyon Donduk-Ombo’s activities during the period of feudal wars and, later, when he was Kalmyk Khan. Finally, the comments include important data on the foreign policy of the Kalmyk Khanate, chiefly the history of its interaction with the Dzungar Khanate in the 17th–18th centuries. Conclusions. Palmov’s handwritten comments discovered on the pages of his Essays on the History of the Volga Kalmyks are a significant contribution to his scientific heritage that sheds light on the history of feudal strife in the Kalmyk Khanate in the 1720s–1730s.

scholarly journals Representation of the Namasudras in Literature

2021 ◽  
Vol 6 (4) ◽  
pp. 230-235
Author(s):  
Joylal Das ◽  
Dr. Kulanand Yadav
Keyword(s):  
Crucial Role ◽  
Literary Analysis ◽  
Standard Material ◽  
Alternate History ◽  
Historical Archives ◽  
History Of ◽  
The Subject ◽  
Cultural Movement

In Bengali Dalit literature, the Namasudra writers and poets play a crucial role in combating the complete social margsinalization of Dalits, their movements, iconography, experiences, and worldview. According to Manohar Mouli Biswas, “It is a counter cultural movement that has been aiming to undo the age-old caste ridden oppressions against the dalits by representing their lives, deprivations, struggles, histories and promoting their culture and liberation through literature” (Biswas XXV). There have recently been many books written by Dalit Namasudra authors, some of which have been published in English. Using these archives and texts, we may now see the Dalit Namasudras from a different perspective, one that previously would not have been possible through the use of traditional historical archives and writings. Among them mentionable are Manohar Mouli Biswas’s Amar Bhubane Ami Benche Thaki translated as Surviving in My World, Manoranjan Byapari’s Itibritte Chandal Jiban translated as Interrogating My Chandal Life, Dr. Manoranjan Sarkar’s Ekjan Daliter Atmakatha, Jatin Bala’s Sikar Chenra Jiban and so on. This article attempts to rebuild the alternate history of the Namasudras by deconstructing the standard material on the subject using historical and literary analysis.

Words

PMLA ◽  
1935 ◽  
Vol 50 (4) ◽  
pp. 1320-1327
Author(s):  
Colbert Searles
Keyword(s):  
Subject Matter ◽  
Assistant Professor ◽  
The Subject

THE germ of that which follows came into being many years ago in the days of my youth as a university instructor and assistant professor. It was generated by the then quite outspoken attitude of colleagues in the “exact sciences”; the sciences of which the subject-matter can be exactly weighed and measured and the force of its movements mathematically demonstrated. They assured us that the study of languages and literature had little or nothing scientific about it because: “It had no domain of concrete fact in which to work.” Ergo, the scientific spirit was theirs by a stroke of “efficacious grace” as it were. Ours was at best only a kind of “sufficient grace,” pleasant and even necessary to have, but which could, by no means ensure a reception among the elected.

Artificial satellite orbit computations

1966 ◽  
Vol 25 ◽  
pp. 363-371
Author(s):  
P. Sconzo
Keyword(s):  
Artificial Satellite ◽  
Satellite Orbit ◽  
Artificial Satellites ◽  
Orbital Elements ◽  
Differential Correction ◽  
Gravitational Effects ◽  
Short Intervals ◽  
The Subject ◽  
Introductory Discussion ◽  
Orbit Computation

In this paper an orbit computation program for artificial satellites is presented. This program is operational and it has already been used to compute the orbits of several satellites.After an introductory discussion on the subject of artificial satellite orbit computations, the features of this program are thoroughly explained. In order to achieve the representation of the orbital elements over short intervals of time a drag-free perturbation theory coupled with a differential correction procedure is used, while the long range behavior is obtained empirically. The empirical treatment of the non-gravitational effects upon the satellite motion seems to be very satisfactory. Numerical analysis procedures supporting this treatment and experience gained in using our program are also objects of discussion.

C. Wire Cabling for Telescope Systems

1966 ◽  
Vol 27 ◽  
pp. 159-161
Keyword(s):  
The Subject ◽  
Data Multiplexing

Rule: I'd like at this point to bring up the subject of cables and wireways around the telescope. We've touched upon this twice during previous sessions: the cable wrap up problem, the communications problem, and data multiplexing problem. I think we'll ask Bill Baustian if he will give us a brief run down on what the electrical run problems are, besides doubling the system every year.

The relationship of the scleractinian corals to the rugose corals

Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver
Keyword(s):  
Critical Points ◽  
Scleractinian Corals ◽  
Convincing Evidence ◽  
Early Triassic ◽  
Rugose Corals ◽  
History Of ◽  
The Subject ◽  
Relationship Of ◽  
The Relationship ◽  
Biologic Factors

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.

Direct Observations of the Epitaxial Growth of Sputtered Ag on Si

1973 ◽  
Vol 31 ◽  
pp. 122-123
Author(s):  
J. S. Maa ◽  
Thos. E. Hutchinson
Keyword(s):  
Epitaxial Growth ◽  
Film Growth ◽  
Ion Beam ◽  
Ion Beam Sputtering ◽  
Microscopy Technique ◽  
Direct Observations ◽  
In Situ Electron Microscopy ◽  
Beam Sputtering ◽  
The Subject

The growth of Ag films deposited on various substrate materials such as MoS2, mica, graphite, and MgO has been investigated extensively using the in situ electron microscopy technique. The three stages of film growth, namely, the nucleation, growth of islands followed by liquid-like coalescence have been observed in both the vacuum vapor deposited and ion beam sputtered thin films. The mechanisms of nucleation and growth of silver films formed by ion beam sputtering on the (111) plane of silicon comprise the subject of this paper. A novel mode of epitaxial growth is observed to that seen previously.The experimental arrangement for the present study is the same as previous experiments, and the preparation procedure for obtaining thin silicon substrate is presented in a separate paper.

Effects of Hyperoxia on Lung Utrastructure

1970 ◽  
Vol 28 ◽  
pp. 26-27
Author(s):  
Gladys Harrison
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Light Microscopy ◽  
Oxygen Effects ◽  
Age Dependent ◽  
The Central Nervous System ◽  
The Subject ◽  
Space Age ◽  
Alveolar Septa ◽  
Extensive Damage

With the advent of the space age and the need to determine the requirements for a space cabin atmosphere, oxygen effects came into increased importance, even though these effects have been the subject of continuous research for many years. In fact, Priestly initiated oxygen research when in 1775 he published his results of isolating oxygen and described the effects of breathing it on himself and two mice, the only creatures to have had the “privilege” of breathing this “pure air”.Early studies had demonstrated the central nervous system effects at pressures above one atmosphere. Light microscopy revealed extensive damage to the lungs at one atmosphere. These changes which included perivascular and peribronchial edema, focal hemorrhage, rupture of the alveolar septa, and widespread edema, resulted in death of the animal in less than one week. The severity of the symptoms differed between species and was age dependent, with young animals being more resistant.

Materials for Electron Beam Information Storage

1969 ◽  
Vol 27 ◽  
pp. 152-153 ◽  
Author(s):  
D. E. Speliotis
Keyword(s):  
Magnetic Field ◽  
Electron Beam ◽  
Recent Literature ◽  
Electron Beams ◽  
Information Storage ◽  
The Subject ◽  
The Magnetic Field

The interaction of electron beams with a large variety of materials for information storage has been the subject of numerous proposals and studies in the recent literature. The materials range from photographic to thermoplastic and magnetic, and the interactions with the electron beam for writing and reading the information utilize the energy, or the current, or even the magnetic field associated with the electron beam.

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