National Science Fund to Encourage Basic Research

1941 ◽  
Vol 39 (19) ◽  
pp. 295
Keyword(s):  
Basic Research ◽  
National Science ◽  
National Science Fund

Secular geomagnetic field variations in Bulgarian lands during Classical Age and Late Antiquity – new archaeomagnetic data

2021 ◽  
Author(s):  
Maria Kostadinova-Avramova ◽  
Petar Dimitrov ◽  
Andrei Kosterov ◽  
Mary Kovacheva
Keyword(s):  
Material Culture ◽  
Late Antiquity ◽  
Basic Research ◽  
Reference Points ◽  
Archaeological Sites ◽  
Historical Sources ◽  
National Science ◽  
Basic Research Grant ◽  
National Science Fund ◽  
Research Grant

<p>Numerous historical sources and archaeological monuments attest the age of Antiquity in Bulgaria – from both the early Roman period (I – III c.) and Late Antiquity (IV – VI c.). Owing to systematic archaeological excavations, lasting more than 100 years, plenty of information has been accumulated concerning not only all aspects and manifestations of its material culture, but also their evolution and chronology.  This in turn allows for interdisciplinary fields such as archaeomagnetism to progress.</p><p>There are many archaeomagnetically studied archaeological structures from the Antiquity. The results included in the Bulgarian database form 74 reference points. However, only 20 of them are full-vector determinations because 70 % of the investigated materials are bricks. Hence, the secular variation of declination is poorly constrained within the considered period. Moreover, the reuse of bricks in the constructions occurred quite often (especially in the Late Antiquity) providing for possible errors in archaeological dating. In addition, stronger effects of magnetic anisotropy and cooling rate are usually expected for bricks than for hearths, domestic ovens, production kilns or burnt dwelling remains (there are no results from pottery in the Bulgarian dataset) and both factors are not evaluated for most of the older results. All this can explain the contradictions observed between some of the experimental results juxtaposed over the absolute time scale. In an attempt to clarify these contradictions 13 baked clay structures from eight archaeological sites were archaeomagnetically studied producing seven new directional and eight new intensity data. The samples collected possess variable magnetic properties suggesting differences in clay sources and/or firing conditions. Magnetically soft minerals prevail in seven structures but in the remaining six, abundant HCSLT phase is detected. The success rate of archaeointensity determination experiments vary from 49 to 100 %. It appears that samples containing HCSLT phase always produces good araeointensity results unlike those with the dominant presence of soft carriers.</p><p>The new reference points are compared with the present compilation of Bulgarian archaeomagnetic dataset and with the data from the neighboring countries.</p><p> </p><p>This study is supported by the grant KP-06-Russia-10 from the Bulgarian National Science Fund and Russian Foundation of the Basic Research grant 19-55-18006.</p>

Radiation environment in the interplanetary space and Mars orbit during the declining phase of 24th solar cycle and transition to 25th cycle according measurements aboard ExoMars TGO

2021 ◽  
Author(s):  
Jordanka Semkova ◽  
Keyword(s):  
Solar Cycle ◽  
Interplanetary Space ◽  
Basic Research ◽  
Radiation Environment ◽  
Neutron Detectors ◽  
Dose Rates ◽  
24Th Cycle ◽  
National Science ◽  
Academy Of Sciences ◽  
National Science Fund

<p>Radiation environment in the interplanetary space and Mars orbit during the declining phase of 24th solar cycle and transition to 25th cycle according measurements aboard ExoMars TGO</p><p>Jordanka Semkova1, Rositza Koleva1, Victor Benghin3, Krasimir Krastev1, Tsvetan Dachev1, Yuri Matviichuk1, Borislav Tomov1, Stephan Maltchev1, Plamen Dimitrov1, Nikolay Bankov1, Igor Mitrofanov2, Alexey Malakhov2, Dmitry Golovin2, Maxim Mokrousov2, Anton Sanin2, Maxim Litvak2, Maya Djachkova2, Sergey Nikiforov2, Denis Lisov2, Artem Anikin2, Vyacheslav Shurshakov<sup>3</sup>, Sergey Drobyshev<sup>3</sup></p><p> </p><p><sup>1</sup>Space Research and Technology Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria, [email protected]</p><p><sup>2</sup>Space Research Institute, Russian Academy of Sciences, Moscow, Russia, [email protected]</p><p><sup>3</sup>State Scientific Center of Russian Federation, Institute of Biomedical Problems, Russian Academy of Sciences, Moscow, Russia, [email protected]</p><p> </p><p>The dosimetric telescope Liulin-MO for measuring the radiation environment is a module of the Fine Resolution Epithermal Neutron Detector (FREND) onboard the ExoMars TGO.</p><p>Here we present results from measurements of the charged particle fluxes, dose rates and estimation of radiation quality factors and dose equivalent rates at ExoMars TGO science orbit (circular orbit with 400 km altitude, 74<sup>0 </sup>inclination, 2 hours orbit period), provided by Liulin-MO from May 01, 2018 to January 10, 2021.</p><p>The obtained data show that: an increase of the dose rates and fluxes is observed from May 2018 to February 2020 which corresponds to the increase of galactic cosmic rays (GCR) intensity during the declining of the solar activity in 24th solar cycle; From March to August 2020 the measured radiation values are practically equal, corresponding to the minimum of 24th cycle and transition to 25th cycle. The highest values of the dose rate (15.5/16.2 µGy h-1 at two perpendicular directions) and particle flux (3.24/3.33 cm-2s-1 at two perpendicular directions) are registered in this period; Since September 2020 a decrease of the dose rates and fluxes is observed, corresponding to the decrease of GCR intensity during the inclination phase of the 25th cycle.</p><p>The cosmic ray fluxes and doses measured in Mars orbit are recalculated into values meaningful for the deep interplanetary space at about 1.5 AU. The flux in the free space is at least 3.68 cm-2s-1 and the dose rate is 18.9 µGy h-1 in August 2020. The results demonstrate that the radiation conditions in the interplanetary space worsen in the minimum of the solar activity in 24th cycle compared to the previous solar minimum.</p><p>Liulin-MO charged particles measurements are compared for completeness to similar measurements performed by FREND neutron detectors: the instrument’s 3He neutron detectors are also a source of charged particles flux signal that can be used for correlation.</p><p>The results are of importance for benchmarking of the space radiation environment models and for assessment of the radiation risk to future manned missions to Mars.</p><p>Acknowledgements</p><p>The work in Bulgaria is supported by Project No 129 (KP-06 Russia 24) for bilateral projects of the National Science Fund of Bulgaria and Russian Foundation for Basic Research. The work in Russia is supported by Grant 19-52-18009 for bilateral projects of the National Science Fund of Bulgaria and Russian Foundation for Basic Research.</p>

scholarly journals The 2011 National Science Foundation Political Science Awards

2012 ◽  
Vol 45 (01) ◽  
pp. 124-126
Keyword(s):  
Political Science ◽  
National Science Foundation ◽  
Research Training ◽  
Basic Research ◽  
Science Research ◽  
Fiscal Year ◽  
The Political ◽  
Science Program ◽  
Political Processes ◽  
National Science

The Political Science Program at the National Science Foundation (NSF) announces it awards for basic research support and dissertation improvement grants for fiscal year 2011. The Program funded 25 new projects and 44 doctoral dissertation improvement proposals. The Political Science Program spent $5,234,470 on these research, training and workshop projects and $483,822 on dissertation training grants for political science students. The program holds two grant competitions annually —Regular Research, August and January 15; Dissertation Improvement, September 16 and January 15— and constitutes a major source of political science research funding as part of fulfilling NSF's mission to encourage theoretically focused empirical investigations aimed at improving the explanation of fundamental social and political processes and structures.

An Approach to Polar Research

ARCTIC ◽  
1963 ◽  
Vol 16 (3) ◽  
pp. 151
Author(s):  
T.O. Jones
Keyword(s):  
International Cooperation ◽  
Research Program ◽  
National Science Foundation ◽  
Basic Research ◽  
Upper Atmosphere ◽  
Common Interest ◽  
The Arctic ◽  
National Science

Discusses role of the National Science Foundation in U.S. research in the Arctic and Antarctic. For the latter NSF has fostered a coordinated basic research program. Some features of it and techniques developed might be utilized in a bipolar program on problems of common interest, e.g. conjugate phenomena of the upper atmosphere, international cooperation, etc. Proposals for basic research in the Arctic are welcomed.

SOME RESULTS FROM A SURVEY ABOUT FORMING DIGITAL LITERACY OF 8 YEARS OLD STUDENTS

2020 ◽  
Vol 11 (1) ◽  
pp. 53-56
Author(s):  
Lubomira Parijkova ◽  
Keyword(s):  
Digital Literacy ◽  
Digital Technologies ◽  
School Age ◽  
Digital Era ◽  
National Science ◽  
Digital Competencies ◽  
Primary School Age ◽  
The Cost ◽  
Key Participants ◽  
National Science Fund

Contemporary children live in a digital era and it is almost impossible for them not to be tempted by technologies. This article presents some interesting results from Bulgarian project „Digital Competencies and Media Education at Pre-school and Primary School Age” (National Science Fund; Н05/8 14.12.2016). In 2018 there were interviewed 637 children from 13 Bulgarian towns. The focus in this article is only 8 years old students and their digital habits. The author is a Member of the team of the COST project ‘Digital literacy and multimodal practices of young children’ (Action IS1410) – DigiLitEY. In March 2019 in Manchester on the final project’s meeting of DigiLitEY were presented results connect ed with the key participants for this COST’s project – up to 8 years old students. This article analyses this aged group and their attitudes of digital technologies.

2009 National Science Foundation Political Science Program Awards

2010 ◽  
Vol 43 (01) ◽  
pp. 159-162
Keyword(s):  
Political Science ◽  
National Science Foundation ◽  
Research Training ◽  
Basic Research ◽  
Science Research ◽  
Fiscal Year ◽  
The Political ◽  
Science Program ◽  
Political Processes ◽  
National Science

The Political Science Program at the National Science Foundation (NSF) announces it awards for basic research support and dissertation improvement grants for fiscal year 2009. The program funded 56 new projects and 34 doctoral dissertation improvement proposals. (Additional program funds were spent on continuing grant increments. These result from awards that were made in previous fiscal years, but where funds are being disbursed on a yearly basis instead all up front.) The Political Science Program spent $10,461,799 on these research, training, and workshop projects and $383,238 on dissertation training grants for political science students. In addition, the program contributed $345,000 to support three Graduate Research Fellowships. The program holds two grant competitions annually (Regular Research, August and January 15; Dissertation Improvement, January 15) and constitutes a major source of political science research funding as part of fulfilling NSF's mission to encourage theoretically focused empirical investigations aimed at improving the explanation of fundamental social and political processes and structures.

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