165 research outputs found
Botanical expedition in mountains of Caucasus in 2013
No full textSummary [editor’s note]The botanical expedition has an important role in documenting unknown flora and its natural history. Such expedition has been instrumental to ascertain what conservation actions the region need of. Gennady A. Firsov writes a short note providing a fascinating account of a botanical expedition in the Caucasus Mountains. His vivid account of geography, climate and flora provide a resemblance between floral diversity with that of physical geography and climate. The six member expedition team visited the highest peak of Caucasus, the Bermamyt plateau, Teberda and Tuman- Lykyel Lake. Teberda, in particular, is a unique floral sanctuary where three seasons can be witnessed at the same time: warm summer down the valley, early spring in alpine meadow and winter further up with snowy storms, glaciers and everlasting snows. The Teberda Biospherical State Nature Reserve harbors 43 species of mammals. The tallest tree (60 m) measured in the expedition was Nordmann’s Fir, which is considered tallest species in Russia. The explorers visited the gorge of Gonachkhir River and the Kyzgych gorge. The Kyzgych gorge is strictly protected regime where flock of aurochs lives in the wild. Here, the team found Lonicera steveniana Fisch. ex Pojark for the first time. They were lucky enough to discover Acer tataricum L. and Euonymus nanus Bieb. in Razvalka mountain.Gennady A. Firsov, G. A. (2017) Botanical expedition in mountains of Caucasus in 2013. Conservation Science, 1: 1-9.</jats:p
New forms of woody plants cultivated at the Peter the Great Botanical Garden
No full textThe article has a description of four new forms (Kalopanax septemlobus (Thunb.) Koidz. f. variegatus Byalt et Firsov forma nova, Cercidiphyllum japonicum Siebold et Zucc. f. piramidale Byalt et Firsov forma nova, Quercus crispula Blume f. fastigiata Byalt et Firsov forma nova, Rhododendron maximum L. f. apetalum Byalt et Firsov forma nova) and the new hybrid Myrica × uchanovii Byalt et Firsov hybridus novus (Myrica gale L.× M. tomentosa (DC.) Aschers. et Graebn.) cultivated at the Peter the Great Botanical Garden in St. Petersburg. We provide information about the origin of the planting material, differences between the new forms from related taxa with Latin diagnoses, type specimens and place of its preservation. The article contains seven photos
New taxa of trees and shrubs at Peter the Great Botanical Garden
No full textThe article describes 4 new forms for science (Acer mayrii Schwer, f. pyramidale V.V. Byalt et Firsov forma nova, Acer platanoides L. f. atropurpureo-viridis V.V. Byalt et Firsov forma nova, Crataegus nigra Waldst. et Kit. f. arcuato-pendula V.V. Byalt et Firsov forma nova, Malus praecox (Pall.) Borkh. f. pyramidale V.V. Byalt et Firsov forma nova, and 2 new hybrids: Betula x zamjatninii V.V. Byalt et Firsov (Betula ermanii Cham. x B. pendula Roth.), Lonicera x zaitzevii V.V. Byalt, A. Byalt et Firsov hybrida nova (Lonicera demissa Rehd. x L. xylosteum L.) Aschers. et Graebn.) cultivated at the Peter the Great Botanical Garden in St. Petersburg. Information on the origin of planting material is given, new forms are distinguished from close taxa (Latin diagnoses are given), typical specimen and their storage locations are indicated. The article is illustrated with 7 photos
Promising species and forms of conifers for Saint-Petersburg city planting
No full textLong-time introductory probations (1980-2016) of arboreal exotic species and cultivars in Saint-Petersburg botanic gardens allow us to recommend 69 taxa, that are seldomly or have not been used for city planting in climatic conditions of the beginning of the XXI century. They belong to 12 genera and 3 families. In comparison to G. A. Firsov and I. V. Fadeeva's recommendations (2009), the list has been extended by 21 taxa. This will allow to widen the range of city planting species and will contribute to creating comfortable living conditions for the city inhabitants
1989 expedition for new plants to the Russian Far East
No full textThe article describes plant hunting expedition by the Peter the Great Botanical Garden of Komarov Botanical Institute to the Russian Far East
An unknown poem by Gennady Shpalikov
No full textGennady Shpalikov’s poem “Ballada pro tikhoye otchayanie” (‘A Ballad About a Quiet Despair’), dedicated to film director Larisa Shepitko, is hereby published for the first time. The piece survived as part of Shpalikov’s letter to Shepitko dating from the 1960s. The author of the article examines key motifs of the poem and places it in the context of the whole output of the scenarist and poet, showing how it reverberates with his other lyrical pieces as well as screenplays.В статье впервые публикуется стихотворение Геннадия Шпаликова Баллада про тихое отчаяние, посвященное кинорежиссеру Ларисе Шепитько. Стихотворение сохранилось в составе письма Шпаликова к Шепитько и датируется концом 1960-х годов. Автор статьи рассматривает основные мотивы публикуемого стихотворения и ставит его в контекст творчества кинодраматурга и поэта, обнаруживает переклички с другими его лирическими произведениями и сценариями
The North-West of Russia: the potential and areas of Russian-Lithuanian research and innovation cooperation
No full textThis article considers the present state and prospects of Russian-Lithuanian cooperation in the field of research and innovation. The author analyses the tendencies of innovation activities of economic entities in the North-West of Russia in terms of relative innovation activity indicators. Special attention is paid to the role of cross-border and trans-border cooperation in the Baltic macroregion as a mechanism of managing the innovative development of regional economy
The Workload process with a Poisson cluster input can look like a Fractional Brownian motion even in the slow growth regime
No full textThe workload process with a Poisson cluster input can look like a Fractional Brownian motion even in the slow growth regime
Vicky Fasen_and Gennady Samorodnitsky ?
May 20, 2008
Abstract
We show that, contrary to the common wisdom, the workload process in a _uid queue with
a cluster Poisson input can converge, in the slow growth regime, to a Fractional Brownian
motion, and not to a L?vy stable motion. This emphasizes lack of robustness of L?vy stable
motions as _bird-eye_ descriptions of the tra_c in communication networks.
AMS 2000 Subject Classi_cations: primary: 90B22 secondary: 60F17
Keywords: cluster Poisson process, _uid queue, Fractional Brownian motion, slow growth regime, scaling limit, workload process
? Center for Mathematical Sciences, TU M?nchen, D-85747 Garching, Germany, email: [email protected]. Parts of the paper were written while the _rst author was visiting the Department of Operations Research and Information Engineering at Cornell University. Financial support from the Deutsche Forschungsgemeinschaft through a research grant is gratefully acknowledged.
?School of Operations Research and Information Engineering, Cornell University, Ithaca, NY 14853, email:
[email protected]. Samorodnitsky's research was partially supported by an NSA grant MSPF-05G-049 and an ARO grant W911NF-07-1-0078 at Cornell University
Prospects of further introduction of woody plants of the Red Data Book of Russia to Saint-Petersburg
No full textFifty woody species of the Red Data Book of Russian Federation are represented in botanic gardens of Saint-Petersburg. The rest 53 species belong to 40 genera of 23 families. Eight species of the first category, which are under extinction in the wild, are the most important for introduction and Ex situ conservation. The most part of absent species come from the European part of Russia, the best reserves are among the dwarf subshrubs. Fourteen species are recommended for primary introduction, and 10 species are recommended for repeated introduction
- …
