LIFE HISTORY STAGES of THREE UNIVERSITIES GRADUATE (To the 100th anniversary birth of the Academician N.N. Yanenko)

2021 ◽  
pp. 135-145
Author(s):  
V.N. Bertsun ◽  
◽  
E.S. Kosova ◽  
Keyword(s):  
Life History ◽  
100Th Anniversary ◽  
Scientific Activity ◽  
Life History Stages ◽  
Socialist Labor ◽  
Ussr State ◽  
And Mathematics

The article presents the main stages of scientific activity of an outstanding Soviet mathematician and mechanic, Academician Nikolai Nikolaevich Yanenko, graduate of the Faculty of Mechanics and Mathematics of Tomsk University, Honored Activist of Socialist Labor, winner of three USSR State Prizes.

scholarly journals Veniamin Vasilievich Volkov (to the 100th Anniversary of His Birth)

2021 ◽  
Vol 18 (1) ◽  
pp. 171-173
Author(s):  
A. N. Kulikov ◽  
V. A. Reituzov ◽  
A. F. Sobolev ◽  
Yu. A. Kirillov ◽  
D. V. Shamrey
Keyword(s):  
100Th Anniversary ◽  
State Prize ◽  
Military Medical Academy ◽  
Medical Academy ◽  
Socialist Labor ◽  
Honorary Doctor ◽  
Ussr State ◽  
The Military ◽  
Creative Life

The article presents the main milestones in the creative life of the Hero of Socialist Labor, the USSR State Prize Laureate, Honored Scientist of the RSFSR, Honorary Doctor of the Military Medical Academy Professor V.V. Volkov.

scholarly journals The movement ecology of seagrasses

2014 ◽  
Vol 281 (1795) ◽  
pp. 20140878 ◽  
Author(s):  
Kathryn McMahon ◽  
Kor-jent van Dijk ◽  
Leonardo Ruiz-Montoya ◽  
Gary A. Kendrick ◽  
Siegfried L. Krauss ◽  
...  
Keyword(s):  
Life History ◽  
Clonal Growth ◽  
Movement Ecology ◽  
Future Research ◽  
The Novel ◽  
Long Distance ◽  
Spatial And Temporal Scales ◽  
Life History Stages ◽  
Research Areas ◽  
Time Movement

A movement ecology framework is applied to enhance our understanding of the causes, mechanisms and consequences of movement in seagrasses: marine, clonal, flowering plants. Four life-history stages of seagrasses can move: pollen, sexual propagules, vegetative fragments and the spread of individuals through clonal growth. Movement occurs on the water surface, in the water column, on or in the sediment, via animal vectors and through spreading clones. A capacity for long-distance dispersal and demographic connectivity over multiple timeframes is the novel feature of the movement ecology of seagrasses with significant evolutionary and ecological consequences. The space–time movement footprint of different life-history stages varies. For example, the distance moved by reproductive propagules and vegetative expansion via clonal growth is similar, but the timescales range exponentially, from hours to months or centuries to millennia, respectively. Consequently, environmental factors and key traits that interact to influence movement also operate on vastly different spatial and temporal scales. Six key future research areas have been identified.

To the 100th Anniversary of the USSR State Planning Committee

2021 ◽  
Vol 144 (2) ◽  
pp. 62-69
Author(s):  
Victor A. Pchelkin ◽  
◽  
Galina Yu. Kuznetsova ◽  
Tatiana А. Zheltonozhko ◽  
◽  
...  
Keyword(s):  
Economic Structure ◽  
Radical Change ◽  
100Th Anniversary ◽  
The State ◽  
Planning Committee ◽  
The Political ◽  
State Planning ◽  
History Of ◽  
Ussr State ◽  
Objective Necessity

A step-by-step and objective review of the history of the State Planning Committee of the USSR (Gosplan), presented by the authors, helps to form a holistic idea of how the power of the USSR arose and what objective necessity or what subjective factors led to a radical change in the political and socio-economic structure of the country.

scholarly journals Sublethal Effects of Crude Oil and Chemical Dispersants on Multiple Life History Stages of the Eastern Oyster, Crassostrea virginica

2020 ◽  
Vol 8 (10) ◽  
pp. 808
Author(s):  
Sara M. Garcia ◽  
Kevin T. Du Clos ◽  
Olivia H. Hawkins ◽  
Brad J. Gemmell
Keyword(s):  
Life History ◽  
Crude Oil ◽  
Crassostrea Virginica ◽  
Sublethal Effects ◽  
Oil Pollution ◽  
Eastern Oyster ◽  
Clearance Rates ◽  
Important Species ◽  
Life History Stages ◽  
Oil Exposure

The eastern oyster Crassostrea virginica is an ecologically and economically important species that is vulnerable to oil pollution. We assessed sublethal effects of soluble fractions of crude oil alone (WAF) and crude oil in combination with Corexit 9500 dispersant (CEWAF) on oysters at three life history stages. Veliger swimming, pediveliger settlement, and adult clearance rates were quantified after 24 h exposures to the contaminants. Veliger swimming speeds were not significantly impacted by 24 h exposures to WAF or CEWAF. A larger proportion of veligers were inactive following WAF and CEWAF exposure as compared to the control, but the effect was greater for pediveligers, and pediveliger settlement in the highest concentration CEWAF treatment decreased by 50% compared to controls. Thus, pediveligers may be particularly vulnerable to oil exposure. In the adults, we found significant clearance rates reductions that persisted 33 days after acute exposure to CEWAF. Knowledge of sublethal effects of oil and dispersant at multiple life history stages aids understanding of how this important species will respond to an oil spill.

Significance of Egg and Larval Size to Recruitment Variability of Temperate Marine Fish

1991 ◽  
Vol 48 (10) ◽  
pp. 1820-1828 ◽  
Author(s):  
Pierre Pepin ◽  
Ransom A. Myers
Keyword(s):  
Life History ◽  
Marine Fish ◽  
Early Life ◽  
Univariate Analysis ◽  
Early Life History ◽  
Fish Populations ◽  
Larval Size ◽  
Larval Phase ◽  
Life History Stages ◽  
Recruitment Variability

Recruitment variability is commonly associated with fluctuations in abundance of marine fish populations. Previous studies have focussed on stock-specific correlative or mechanistic models or on comparisons of recruitment variations of several stocks or species. The purpose of this study is to determine whether recruitment variability of commercial marine fish populations is associated with either size or the duration of early life history stages. The analysis was performed with data from 86 stocks representing 21 species of commercial marine fish. Univariate analysis shows that neither egg size nor the length at hatch is significantly correlated with recruitment variability. The change in length during the larval phase, which is representative of the duration of the stage, is significantly positively correlated with recruitment variability. Multivariate analysis shows that recruitment variability increases with increasing length at metamorphosis but that recruitment variability is poorly associated with length at hatch. The degree of serial correlation is related to the relative duration of egg and larval stages. The results clearly indicate that recruitment variability is linked to characteristics of early life history stages.

Disturbance and tropical pioneer species: Patterns of association across life history stages

2012 ◽  
Vol 277 ◽  
pp. 54-66 ◽  
Author(s):  
Uromi M. Goodale ◽  
Mark S. Ashton ◽  
Graeme P. Berlyn ◽  
Timothy G. Gregoire ◽  
B.M.P. Singhakumara ◽  
...  
Keyword(s):  
Life History ◽  
Pioneer Species ◽  
Life History Stages
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