Successful Development of Artificial Dental Root of the Gompholic System by Means of Bioceramics

2006 ◽  
Vol 49 ◽  
pp. 290-299
Author(s):  
Katsunari Nishihara
Keyword(s):  
Clinical Research ◽  
Alveolar Bone ◽  
Animal Experiments ◽  
Successful Development ◽  
Joint System ◽  
Optimal Shapes ◽  
Integrated Research ◽  
The World ◽  
Implant System ◽  
First Time

The conventional concept of dental implants completely lacks odontology. Therefore, the dental implant system is quite different from the gompholic mammalian tooth system. Developmental research on artificial dental roots of the mammalian gompholic system has been carried out by the author successfully for the first time in the world from the viewpoint of odontology. Characteristics of the mammalian tooth system are gompholic and heterodontia with tribosphenic tritubercular molars. The meaning of heterodontia in morphology, i.e., several variations in crown and root shapes in different sites of mammalian jawbones are optimal shapes according to the different tooth functions, i.e., sphenic incisors and canines, and tribosphenic-tritubercular molars. For the optimal shapes of teeth adapted to their functions, the gompholic joint system is inevitable, i.e., fibrous articulation with cementoblasts, ligaments with capillaries, and the alveolar bone proper (socket bone). From this viewpoint, the author has developed artificial dental roots of the heterodontia gompholic system. Integrated research on animal experiments, biomechanical research as well as clinical research, have been carried out. It has been proved by microanalyses, microscopy, and scanning electromicroscopy (SEM) that cementoblasts, the cementum, periodontal ligaments, and the alveolar bone proper (socket bone), develop around artificial roots.

PROBLEMS OF POLISH ROMANTICISM IN THE PERCEPTION OF LITERARY CRITIC MIHAL GRABOVSKYJ (according to the materials of correspondence)

2019 ◽  
pp. 312-320
Author(s):  
Iryna Rudenko
Keyword(s):  
German Romanticism ◽  
Literary Critic ◽  
Romantic Literature ◽  
Integrated Research ◽  
Independent Analysis ◽  
The World ◽  
Conceptual Reasoning ◽  
Communicative Structure ◽  
First Time ◽  
Second Period

Problems of polish romanticism in the perception of literary critic Mihal Grabovskyj (according to the materials of correspondence). This article is devoted to integrated research into correspondence of polish literary man M. Grabovskyj, analyzed literary and philosophic views of master in a diachronic aspect, his aesthetic priorities, described the evolution of general vital references of theoretician, and outlined the division into periods of creation and philosophic views of figure. A lot of attention is given to elucidation letters’ genres of M. Grabovskyj and its style. For the first time it is the attempt of new valuation of his achievements and intentions, consideration and description epistolary heritage of M. Grabovskyj, which include theoretical-literary dialogues with the famous polish artists of XIX c. In his enormous array there are the conceptual reasoning andestimations of both work of separate writers and of that timeliterary process. The looks of writer were constantly evolved, that does any division into periods of correspondence conditional enough. However there sre distinguished two periods: European-”loyal” (1823 -1843) and later “tendentious” clerical-panslavics’ (1843 – 1863). The range of letters’ problems of of the first period marks adaptation of ideas of European (German) romanticism to national traditions, grouping and consolidation by the leaders of Polish romantic literature. These ideas contain optimistic character and sent to deepening the national perception of the world. The second period is characterized by correlations of the own theory of romanticism, ambiguousness of communicative structure. Grabovskyj comprehended the nomenclature of texts of romantic canon. The letters of М. Grabovskyj, that became the article of independent analysis first, substantially specify presentation in the relation to his literary- aesthetic program realized in the articles. In that correspondences, especially in those that are addressed to the closest friends he was frank and formulated the positions laconically and clearly. In the letters of artist it is legitimate to see continuation of critical articles.

scholarly journals Viral Architecture of SARS-CoV-2 with Post-Fusion Spike Revealed by Cryo-EM

2020 ◽  
Author(s):  
Chuang Liu ◽  
Yang Yang ◽  
Yuanzhu Gao ◽  
Chenguang Shen ◽  
Bin Ju ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Clinical Research ◽  
Negative Staining ◽  
S Protein ◽  
Preliminary Results ◽  
Transmission Electron ◽  
The World ◽  
First Time ◽  
Virion Particles

AbstractSince December 2019, the outbreak of Coronavirus Disease 2019 (COVID-19) spread from Wuhan, China to the world, it has caused more than 87,000 diagnosed cases and more than 3,000 deaths globally. To fight against COVID-19, we carried out research for the near native SARS-CoV-2 and report here our preliminary results obtained. The pathogen of the COVID-19, the native SARS-CoV-2, was isolated, amplified and purified in a BSL-3 laboratory. The whole viral architecture of SARS-CoV-2 was examined by transmission electron microscopy (both negative staining and cryo-EM). We observed that the virion particles are roughly spherical or moderately pleiomorphic. Spikes have nail-like shape towards outside with a long body embedded in the envelope. The morphology of virion observed in our result indicates that the S protein of SARS-CoV-2 is in post-fusion state, with S1 disassociated. This state revealed by cryo-EM first time could provide an important information for the identification and relevant clinical research of this new coronavirus.

SEROPREVALENCE OF HIV AND HBsAg AMONGST BLOOD DONORS IN A TERTIARY CARE HOSPITAL, CHHATTISGARH.

2019 ◽  
Vol 3 (8) ◽  
Author(s):  
Anusha P ◽  
Bankar Nandkishor J ◽  
Karan Jain ◽  
Ramdas Brahmane ◽  
Dhrubha Hari Chandi
Keyword(s):  
Hepatitis B ◽  
Blood Donors ◽  
Hepatitis B Surface Antigen ◽  
Tertiary Care ◽  
Laboratory Diagnosis ◽  
Blood Bank ◽  
Care Hospital ◽  
Medical College ◽  
The World ◽  
First Time

INTRODUCTION: India being the second highly populated nation in the world. HIV/AIDS has acquired pandemic proportion in the world. Estimate by WHO for current infection rate in Asia. India has the third largest HIV epidemic in the world. HIV prevalence in the age group 15-49 yrs was an estimate of 0.2%. India has been classified as an intermediate in the Hepatitis B Virus (HBV) endemic (HBsAg carriage 2-7%) zone with the second largest global pool of chronic HBV infections. Safety assessment of the blood supply, the quality of screening measures and the risk of transfusion transmitted infectious diseases (TTIs) in any country can be estimated by scrutinizing the files of blood donors. After the introduction of the blood banks and improved storage facilities, it became more extensively used. Blood is one of the major sources of TTIs like hepatitis B, hepatitis C, HIV, syphilis, and many other blood borne diseases. Disclosure of these threats brought a dramatic change in attitude of physicians and patients about blood transfusion. The objective of this study is to determine the seroprevalence of transfusion transmitted infections amidst voluntary blood donors at a rural tertiary healthcare teaching hospital in Chhattisgarh. MATERIAL AND METHODS: This retrospective study was carried out in Chandulal Chandrakar Memorial Medical College, Kachandur, Durg. Blood donors were volunteers, or and commercial donors who donated the blood and paid by patients, their families, or friends to replace blood used or expected to be used for patients from the blood bank of the hospital. After proper donation of blood routine screening of blood was carried out according to standard protocol. Laboratory diagnosis of HIV 1 and HIV 2 was carried out by ELISA test. Hepatitis B surface antigen was screened by using ELISA. RESULTS: A total of 1915 consecutive blood donors’ sera were screened at Chandulal Chandrakar Memorial Medical College, blood bank during study period. Of these 1914 were male and 1 female. The mean age of patients was found to be 29.34 years with standard deviation (SD) of 11.65 Years. Among all blood donors in present study, 759(39.63%) were first time donors and 1156(60.37%) were repeated donors. 1 patient was HIV positive in first donation group while 3 (75%) were positive in repeat donation group. 7 (38.9%) were HBsAg positive in in first donation group while 11(61.1%) were positive in repeat donation group. Two patients in first donation group had dual infection of HIV and HBsAg. CONCLUSION: Seropositivity was high in repeated donors as compared to first time donors. The incidence of HIV is observed to be 0.2% and that of HBsAg is 0.94%. Strict selection of blood donors should be done to avoid transfusion-transmissible infections during the window period.

First report of Rinamba opacicollis Cameron (Hymenoptera: Braconidae, Doryctinae) in India as parasitoid of coffee stem borer, Xylotrechus quadripes (Chevrolat) (Coleoptera: Cerambycidae)

ENTOMON ◽  
2020 ◽  
Vol 44 (4) ◽  
pp. 311-314
Author(s):  
A. Roobakkumar ◽  
H.G. Seetharama ◽  
P. Krishna Reddy ◽  
M.S. Uma ◽  
A. P. Ranjith
Keyword(s):  
Integrated Control ◽  
Host Record ◽  
Stem Borer ◽  
Arabica Coffee ◽  
First Report ◽  
The World ◽  
First Time

Rinamba opacicollis Cameron (Hymenoptera: Braconidae) was collected from Chikkamagaluru, Karnataka, India for the first time from the larvae of white stem borer, Xylotrechus quadripes Chevrolat infesting arabica coffee. Its role in the biological or integrated control of X. quadripes remains to be evaluated. White stem borer could be the first host record of this parasitoid all over the world.

PERSPECTIVE DEVELOPMENT OF WORLD PRODUCTION OF FEEDS FOR AQUACULTURE: ALTERNATIVE SOURCES OF RAW MATERIALS

2017 ◽  
pp. 67-78
Author(s):  
Lina Yurievna Lagutkina
Keyword(s):  
Raw Materials ◽  
Limiting Factors ◽  
Current Status ◽  
Feed Production ◽  
The World ◽  
Market Trends ◽  
Alternative Sources ◽  
World Industry ◽  
First Time ◽  
A Current

The author of the article discloses the prospects of development of the world feed production for aquaculture based on the analysis of key innovative technological and market trends. The author specifies that shortage, high cost, low ecological compatibility of traditional raw materials - fish flour - are among major limiting factors in the development of production of feeds for aquaculture. This fact, in turn, limits sustainable development of aquaculture both in Russia, and in the world in general. The article presents the overview of a current status of the world industry of feed production in aquaculture, where the regional situation is studied, as well. For the first time, there is given the outlook of innovative technologies in feed production based on the alternative sources of protein (on the example of projects of leading aquabiotechnological companies) which will determine industry’s objectives for the mid-term perspective.

History Turmoil And Politico-Cultural Conditions of the Sub-Continental Men In Salman Rushdie’s Midnight’s Children

2015 ◽  
Vol 2 (2) ◽  
pp. 26-28
Author(s):  
Gunasekaran N ◽  
Bhuvaneshwari S
Keyword(s):  
Middle Class ◽  
Salman Rushdie ◽  
Fiction Writing ◽  
Pluralistic Society ◽  
Post Colonial ◽  
Cultural Conditions ◽  
The World ◽  
Midnight's Children ◽  
First Time

Salman Rushdie remains a major Indian writer in English. His birth coincides with the birth of a new modern nation on August 15, 1947. He has been justly labelled by the critics as a post-colonial writer who knows his trade well. His second novel Midnight’s Children was published in 1981 and it raised a storm in the hitherto middle class world of fiction writing both in English and in vernaculars. Rushdie for the first time burst into the world of fiction with subversive themes like impurity, illegitimacy, plurality and hybridity. He understands that a civilization called India may be profitably understood as a dream, a collage of many colours, a blending of cultures and nationalities, a pluralistic society and in no way unitary.

Sphagnum mosses (Sphagnaceae, Bryophyta) of South Ossetia (Caucasus)

2017 ◽  
Vol 51 ◽  
pp. 232-241 ◽  
Author(s):  
G. Ya. Doroshina ◽  
E. Yu. Kuzmina ◽  
I. A. Nikolajev
Keyword(s):  
The South ◽  
The Caucasus ◽  
South Ossetia ◽  
Sphagnum Mosses ◽  
Botanical Institute ◽  
Ecological Conditions ◽  
Komarov Botanical Institute ◽  
The World ◽  
First Time

Information on the Sphagnum mosses of the South Ossetia is generalized, the resulted list is presented. Nine species of Sphagnum are included in the list, whereabouts data and references to the publications are given, and the presence of a sample in the Herbarium of the Komarov Botanical Institute RAS (LE) is noted. The species Sphagnum platyphyllum (Lindb. ex Braithw.) Warnst. rarely occurring in the Caucasus is reported in the South Ossetia for the first time. The species was found in the Caucasus, South Ossetia, at the side of the Ertso Lake (42°28ʹN, 43°45ʹE), 1720 m a. s. l., among sedge thickets at the margin of the overgrowing lake. The peculiarities of its occurrence and ecological conditions are considered. Its distribution in the Caucasus and in the world is discussed.

scholarly journals Investigator Initiated Clinical Trials (IICTs): A Systematic Search in Registries to Compare the Czech Republic and Portugal in Terms of Funding Policies and Scientific Outcomes

2021 ◽  
Author(s):  
C. Madeira ◽  
L. Hořavová ◽  
F. dos Santos ◽  
J. R. Batuca ◽  
K. Nebeska ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Czech Republic ◽  
Clinical Research ◽  
Systematic Search ◽  
European Countries ◽  
The Czech Republic ◽  
Research Outcomes ◽  
Funding Policies ◽  
Funding Agencies ◽  
First Time

Abstract Objectives Clinical trials provide one of the highest levels of evidence to support medical practice. Investigator initiated clinical trials (IICTs) answer relevant questions in clinical practice that may not be addressed by industry. For the first time, two European Countries are compared in terms of IICTs, respective funders and publications, envisaging to inspire others to use similar indicators to assess clinical research outcomes. Methods A retrospective systematic search of registered IICTs from 2004 to 2017, using four clinical trials registries was carried out in two European countries with similar population, GDP, HDI and medical schools but with different governmental models to fund clinical research. Each IICT was screened for sponsors, funders, type of intervention and associated publications, once completed. Results IICTs involving the Czech Republic and Portugal were n = 439 (42% with hospitals as sponsors) and n = 328 (47% with universities as sponsors), respectively. The Czech Republic and Portuguese funding agencies supported respectively 61 and 27 IICTs. Among these, trials with medicinal products represent 52% in Czech Republic and 4% in Portugal. In the first, a higher percentage of IICTs’ publications in high impact factor journals with national investigators as authors was observed, when compared to Portugal (75% vs 15%). Conclusion The better performance in clinical research by Czech Republic might be related to the existence of specific and periodic funding for clinical research, although further data are still needed to confirm this relationship. In upcoming years, the indicators used herein might be useful to tracking clinical research outcomes in these and other European countries.

scholarly journals First Report on the Geologic Occurrence of Natural Na–A Zeolite and Associated Minerals in Cretaceous Mudstones of the Paja Formation of Vélez (Santander), Colombia

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 218
Author(s):  
Carlos Alberto Ríos-Reyes ◽  
German Alfonso Reyes-Mendoza ◽  
José Antonio Henao-Martínez ◽  
Craig Williams ◽  
Alan Dyer
Keyword(s):  
Natural Zeolite ◽  
Scanning Electron Micrographs ◽  
Total Sulfur ◽  
Zeolite A ◽  
X Ray Diffraction ◽  
X Ray ◽  
Mineral Phases ◽  
The World ◽  
Porosity And Permeability ◽  
First Time

This study reports for the first time the geologic occurrence of natural zeolite A and associated minerals in mudstones from the Cretaceous Paja Formation in the urban area of the municipality of Vélez (Santander), Colombia. These rocks are mainly composed of quartz, muscovite, pyrophyllite, kaolinite and chlorite group minerals, framboidal and cubic pyrite, as well as marcasite, with minor feldspar, sulphates, and phosphates. Total organic carbon (TOC), total sulfur (TS), and millimeter fragments of algae are high, whereas few centimeters and not biodiverse small ammonite fossils, and other allochemical components are subordinated. Na–A zeolite and associated mineral phases as sodalite occur just beside the interparticle micropores (honeycomb from framboidal, cube molds, and amorphous cavities). It is facilitated by petrophysical properties alterations, due to processes of high diagenesis, temperatures up to 80–100 °C, with weathering contributions, which increase the porosity and permeability, as well as the transmissivity (fluid flow), allowing the geochemistry remobilization and/or recrystallization of pre-existing silica, muscovite, kaolinite minerals group, salts, carbonates, oxides and peroxides. X-ray diffraction analyses reveal the mineral composition of the mudstones and scanning electron micrographs show the typical cubic morphology of Na–A zeolite of approximately 0.45 mμ in particle size. Our data show that the sequence of the transformation of phases is: Poorly crystalline aluminosilicate → sodalite → Na–A zeolite. A literature review shows that this is an unusual example of the occurrence of natural zeolites in sedimentary marine rocks recognized around the world.

scholarly journals Remarkable Species Diversity of the Leafhopper Genus Xestocephalus (Hemiptera: Cicadellidae: Aphrodinae) in Thailand

Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 514
Author(s):  
Zonglei Liang ◽  
Christopher H. Dietrich ◽  
Wu Dai
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Single Species ◽  
Comparative Morphology ◽  
Malaise Trap ◽  
Field Sampling ◽  
Tropical Regions ◽  
Trap Field ◽  
The World ◽  
First Time

Xestocephalus Van Duzee is among the most common and widespread genera of Cicadellidae in the temperate and tropical regions of the world. In the present study, 205 specimens of the genus Xestocephalus were collected in Thailand, whereas only a single species of the genus was recorded previously using Malaise trap field sampling, studied by comparative morphology. Seventeen species were recognized, including twelve new species: X. binarius sp. nov., X. chrysanthemum sp. nov., X. cowboyocreus sp. nov., X. densprint sp. nov., X. dimiprocessus sp. nov., X. exproiecturus sp. nov., X. gracilus sp. nov., X. limpidissimus sp. nov., X. malleus sp. nov., X. nonattribus sp. nov., X. recipinams sp. nov., and X. tenusis Liang sp. nov. Four species were recorded in Thailand for the first time: Xestocephalus abyssinicus Heller and Linnavuori, Xestocephalus asper Linnavuori, Xestocephalus ishidae Matsumura, and Xestocephalus toroensis Matsumura. Detailed morphological descriptions of all 17 species are given; photographs of external habitus and male genitalia of the species from Thailand are provided. A checklist of species of the genus is also given, and a key to all Thailand Xestocephalus species is also provided.

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