The results of a complex study of the Turchu limestone hollow (polje). Western Georgia, Caucasus

2021 ◽  
Vol 12 (3) ◽  
pp. 6-20
Author(s):  
Zaza Lezhava1 ◽  
◽  
Kukuri Tsikarishvili ◽  
Lasha Asanidze ◽  
Nino Chikhradze ◽  
...  
Keyword(s):  
Quaternary Deposits ◽  
Water Stream ◽  
Underground Waters ◽  
Complex Study ◽  
Tectonic Movements ◽  
Karst Processes ◽  
Heavy Rains

Based on the complex studies (geographical-geological, karst-speleological, and geophysical studies), conducted by the authors in the study area, karst forms such as sinkholes and ponors were identified, the width (2-17 m) of the Quaternary deposits located on the limestones were determined, the average and maximum discharges of the streams flowing on the bottom of the hollow were calculated. Studies have also shown that relatively heavy rains and snowmelt periodically flood the relatively low, western part of the hollow and create a temporary lake that soon dries up through the ponors at the bottom of the hollow, where the water stream are discharged. The closed shape of the Turchu hollow the limestone bottom covered with Quaternary deposits and the events described above indicate the corrosive origin of the hollow, which has been practically confirmed by our georadiological and electrometric studies. It is notable that the role of tectonic movements in the origin of the hollow along with the corrosive processes, which had a periodic character, and together with the uplifting of the area caused the lowering of the levels of underground waters and, consequently, the activation of karst processes.

THE ROLE OF INSECT LIFE IN ONTARIO STREAMS AND LAKES

1935 ◽  
Vol 67 (3) ◽  
pp. 43-46
Author(s):  
William J. K. Harkness
Keyword(s):  
Water Area ◽  
Water Stream ◽  
Living Organisms

There is in Ontario a water area of approximately 80,000 square miles which is about one-fifth of the total area of the province. As this water area is so great in extent the life of whiich it cointains is significant economically as well as biologically.In every body of water, stream, pond, or lake there is a community of living organisms the individuals of which are practically independent of life outside of the water but which are absolutely inter-dependent upon one another.

scholarly journals HISTORY OF THE SOLOTVYNO HOLLOW OF TRANSCARPATHIA RELIEF DEVELOPMENT

2021 ◽  
pp. 129-137
Author(s):  
Yaroslav Kravchuk ◽  
Vasyl Chalyk
Keyword(s):  
Metamorphic Rocks ◽  
Main Attention ◽  
Palynological Analysis ◽  
Second Stage ◽  
Modern Period ◽  
Lower Pleistocene ◽  
History Of ◽  
River Valleys ◽  
Tectonic Movements

The analysis of four stages of relief development is done, which created the corresponding complexes within the Solotvyno hollow. The main attention is paid to the morphostructural and morphosculptural features. The morphostructures of the third and fourth orders are distinguished. Among the elements of morphosculpture the main attention is paid to denudation and denudation-accumulative surfaces (Kycherska, Skrydeyska, Boronyavska). The role of the new technological movements in the formation of these surfaces and river valleys was rated. The second stage of the upper baden is associated with the retreat of the sea basin and the division of the land into mountains. The main features of the modern relief were formed in the Pliocene Pleistocene stage - a river network with a complex of terraces, denudation and denudation-accumulative surfaces, quest forms in the marginal zone. Age of the Kicherska denudation surface is pannon-pont. According to the palynological analysis, the estimated age of the Skrydei denudation-accumulative surface is upper pliocene-lower pleistocene. The age of the Boronyava surface is considered to be Eopleistocene, and pebbles of metamorphic rocks are present in its alluvium (up to 5%). In the modern period, newer differentiated tectonic movements have become more active, which have contributed to the active manifestation of exogenous processes: erosion, landslides, and halogen karst. Key words: denudation and denudation-accumulative surfaces; power of ancient alluvium; modern morphodynamic processes.

scholarly journals Simulating of the Flood Runoff in Case of Heavy Rains in the Zone of Many-year Frozen Earths

2018 ◽  
Author(s):  
Keyword(s):  
Experimental Investigations ◽  
Observation Data ◽  
Unit Hydrograph ◽  
Runoff Formation ◽  
Melted Layer ◽  
The Many ◽  
Rain Floods ◽  
Heavy Rains ◽  
Time Discontinuity

Special features of the rain floods runoff formation and an approach to their simulating for small catchments of the zone of many-year frozen earths’ spreading are discussed. Information about heavy rains and resulted floods obtained from the observation data from the experimental catchments of the Kolyma and Bomnak runoff stations has been used as initial data. On the basis of the available concepts of the many-year frozen earths’ active layer dynamics and the outcomes of the different years’ experimental investigations, a mathematical model has been proposed. It enables to take into consideration the accumulating role of the soil melted layer and the moss cover. The НЕС-HMS simulating system able to reproduce the flood runoff course with the 1 hour time discontinuity in specific conditions of slope regulation on the basis of the Clark unit hydrograph method was used to take in account special features of the rain runoff formation.

Role of mucilage in germination of Dillenia indica (Dilleniaceae) seeds

2008 ◽  
Vol 56 (7) ◽  
pp. 583 ◽  
Author(s):  
Ramesh C. Thapliyal ◽  
Shyam S. Phartyal ◽  
Jerry M. Baskin ◽  
Carol C. Baskin
Keyword(s):  
East Asia ◽  
Seed Coat ◽  
South East Asia ◽  
Light Requirement ◽  
Dark Regime ◽  
Dillenia Indica ◽  
Seed Coat Mucilage ◽  
Heavy Rains ◽  
Morphological Dormancy

Dillenia indica Linn. is a nearly evergreen tree widely distributed in South-east Asia. Regeneration is by seeds borne within large indehiscent fruits. When extracted fresh, seeds are glued together by the sticky mucilage on the seedcoat. Mucilage anchors seeds during rains, thus preventing them from escaping the fruit. Mucilage does not promote or inhibit germination, but it does restrict the inflow of water into seeds during the initial stages of imbibition. In nature, seeds germinate (within fruits) in July–August following heavy rains that wash off most of the mucilage. Light had a significant effect on germination: a 12/12 h light/dark regime resulted in more and faster germination than when seeds were incubated in total darkness. Seeds exhibited one flush of germination within fruits and another flush in the laboratory following extraction, drying and rehydration, suggesting the occurrence of two physiological types of seeds with regard to light requirement for germination. The embryo of D. indica is underdeveloped, and seeds take ~30 days to germinate under appropriate conditions. Thus, the seeds have morphological dormancy (MD). The possible roles of seed-coat mucilage and light in the germination biology of D. indica seeds in nature are discussed.

scholarly journals Взаємодія діалектних та літературних назв речей хатнього вжитку в українських східнослобожанських говірках

2020 ◽  
Vol 55 ◽  
Author(s):  
Марина [Maryna] Олексіївна [Oleksiïvna] Волошинова [Voloshynova]
Keyword(s):  
Material Culture ◽  
Functional Role ◽  
Semantic Analysis ◽  
Living Conditions ◽  
Quantitative Composition ◽  
Literary Language ◽  
Complex Study ◽  
Lexical Items ◽  
Lexical Composition

Peculiar Features of Names of Household Objects in the Ukrainian Eastern Slobodian DialectsThis article presents an analysis of vocabulary of household objects in the Ukrainian Eastern Slobodian dialects. The area of vocabulary under discussion attracts the attention of researchers owing to its connection with material culture: it reflects human daily needs, social and economic living conditions and inter-ethnic contacts.Research on peculiarities of lexical composition of the local dialects in question remains relevant. The Eastern Slobodian dialects have emerged relatively recently and have been hardly investigated at all, which is why they are of great scholarly interest and require complex study. Special features of this dialectal system stem mainly from the fact that the area is unevenly populated by immigrants from different regions of Ukraine and Russia.The study presented in this article determined the quantitative composition of dialectal material and the functional role of particular lexical items under scrutiny; it also involved their lexical and semantic analysis. Considerable attention has been paid to tracking semantic parallels and differences between the dialects in focus and other dialectal continuums of the Ukrainian language, both the adjacent and more distant ones. In order to examine the interaction between the literary language and the Eastern Slobodian dialects, the lexical units on the record were compared with the national lexicon. The analysis revealed that most names of household objects found in the Eastern Slobodian dialects are in common general use, which indicates the influence of standard speech on the dialects under consideration.Szczególne cechy nazw przedmiotów użytku domowego w ukraińskich gwarach wschodniosłobodzkichNiniejszy artykuł przedstawia analizę słownictwa dotyczącego nazw przedmiotów użytku domowego w ukraińskich gwarach wschodniosłobodzkich. Słownictwo z tego zakresu przyciąga uwagę badaczy ze względu na związek z kulturą materialną: można w nim dostrzec codzienne ludzkie potrzeby, społeczne i ekonomiczne warunki życia i kontakty międzyetniczne.Badania nad szczególnymi cechami zasobu leksykalnego omawianych gwar są jak najbardziej uzasadnione. Gwary wschodniosłobodzkie ukształtowały się stosunkowo niedawno i są nadal słabo zbadane, co sprawia, że są niezmiernie interesujące pod względem językoznawczym i wymagają kompleksowych badań. W tym przypadku szczególne cechy systemu gwarowego wynikają głównie z faktu, że omawiany obszar jest nierównomiernie zasiedlony przez ludność napływową, pochodzącą z różnych regionów Ukrainy i Rosji.Podczas badania materiału ustalono jego skład ilościowy i funkcję poszczególnych składających się nań leksemów oraz przeprowadzono ich analizę leksykalną i semantyczną. Szczególną uwagę zwrócono na prześledzenie podobieństw i różnic semantycznych między badanymi gwarami a sąsiednimi lub bardziej odległymi kontinuami dialektalnymi języka ukraińskiego. Aby ustalić interakcję pomiędzy omawianymi gwarami a językiem literackim, badane jednostki leksykalne porównano z ich ogólnoukraińskimi odpowiednikami. Analiza wykazała, że większość nazw przedmiotów użytku domowego występujących w gwarach wschodniosłobodzkich należy do powszechnie używanego słownictwa, co wskazuje na wpływ języka standardowego na badane gwary.

A REVIEW OF THE FAMILY STENASELLIDAE (ISOPODA, ASELLOTA, ASELLOIDEA) OF UNDERGROUND WATERS

Crustaceana ◽  
1999 ◽  
Vol 72 (8) ◽  
pp. 837-848 ◽  
Author(s):  
Guy Magniez
Keyword(s):  
Biological Rhythms ◽  
Tropical Zone ◽  
Underground Waters ◽  
Biological Adaptation ◽  
The Family ◽  
History Of ◽  
Flooding Events ◽  
Eaux Souterraines ◽  
Subterranean Environment

AbstractThe historical discovery and the successive stages in our knowledge of the family Stenasellidae Dudich, 1924, are described. Their morphological features; the diagnosis of the family, and an updated list of its genera with the respective numbers of their taxa and their main characteristics are given. Also, the biogeography and the ecology of the group and relations between burrowing behaviour and general adaptation to life in all types of continental underground waters, are discussed. Next, the putative evolutionary history of the family is presented, taking into account the active dispersal of these isopods and also the role of Quaternary events: the development of aridity in the northern tropical zone and the occurrence of glaciations in the temperate zones of the Northern Hemisphere. Their general biological adaptation to the absence of circadian stimuli is examined vis-a-vis the fact that biological rhythms are synchronized with the annual flooding events in the subterranean environment. Decouverte historique et progres successifs de la connaissance de la famille des Stenasellidae Dudich, 1924. Caracteres morphologiques originaux; diagnose de la famille; liste mise a jour des genres, nombre de leurs taxons et principales caracteristiques. Biogeographie et ecologie du groupe; relations entre le comportement fouisseur et l'adaptation a la vie dans tous les types de milieux des eaux souterraines continentales. Histoire evolutive presumee de la famille, tenant compte de la capacite d'expansion active de ces Isopodes et du role des evenements quaternaires: developpement du climat aride dans la zone nord-tropicale et intervention des glaciations dans les zones temperees de l'hemisphere nord. Adaptation generale des processus biologiques a l'absence de stimuli externes circadiens, ces processus etant rythmes par la pulsation annuelle du flux des eaux dans l'environnement souterrain, qui joue le role d'un stimulus circannien.

A complex study of the fast blue luminescence of oxidized silicon nanocrystals: the role of the core

Nanoscale ◽  
2014 ◽  
Vol 6 (7) ◽  
pp. 3837 ◽  
Author(s):  
Lukáš Ondič ◽  
Kateřina Kůsová ◽  
Marc Ziegler ◽  
Ladislav Fekete ◽  
Viera Gärtnerová ◽  
...  
Keyword(s):  
Silicon Nanocrystals ◽  
Blue Luminescence ◽  
Fast Blue ◽  
The Core ◽  
Complex Study

scholarly journals Distribution of bacteria of the Klebsiella strain in water objects and their value in developing of the water caused acute intestinal infections

2019 ◽  
Vol 95 (4) ◽  
pp. 397-406
Author(s):  
Yu. A. Rakhmanin ◽  
L. V. Ivanova ◽  
T. Z. Artyomova ◽  
E. K. Gipp ◽  
Anzhelika V. Zagaynova ◽  
...  
Keyword(s):  
Total Coliform ◽  
Coliform Bacteria ◽  
Chemical Pollution ◽  
Pathogenic Potential ◽  
Climatic Zones ◽  
Underground Waters ◽  
High Penetration ◽  
Intestinal Infections ◽  
Effective System

The wide circulation of Klebsiella bacteria in water of water objects of different climatic zones of Russia and various function is established. So bacteria of the Klebsiella strain are in superficial sources of the centralized water supply depending on extent of their biological and chemical pollution; underground waters at the unprotected water-bearing horizons; in drinking water at insufficiently effective system of its cleaning and disinfecting. Klebsiella circulating in water was shown to keep properties of pathogenicity and a virulence, possess resistance both to modern preparations and disinfecting agents (chlorine, an ultraviolet to radiation). Bacteria of the Klebsiella strain have high penetration in the water-bearing horizons. At strains of Klebsiella there is allocated considerable pathogenic potential (adhesive, invasive, phosphatase, lecithinase, DNA-ase, hemolytic activity) and genetic markers of pathogenicity of cnf-1. The etiologic role of bacteria of Klebsiella and an infecting (100, COE/dm3) dose emergence of acute intestinal infections (AII) is established. Detection of Klebsiella in water objects and especially in water of drinking appointment, in the absence of total coliform bacteria (TCB) contributes to the epidemic danger of water use.

scholarly journals ON COAST LINE OSCILLATIONS DURING LAST DECADES. BORSHI BEACH CASE, ALBANIAN RIVIERA

2017 ◽  
Vol 50 (1) ◽  
pp. 441
Author(s):  
S. Marku ◽  
V. Doda
Keyword(s):  
Sea Level ◽  
20Th Century ◽  
Marine Sediments ◽  
Sediment Supply ◽  
Past Century ◽  
Sea Waves ◽  
Quaternary Deposits ◽  
Coast Line ◽  
Continental Area

The oscillations of coast line in Albania, and simultaneously the Quaternary deposits in Albania were little studied until the decade of 90th of 20th century. Up to now, the studies consider those deposits as fluvial sediment; meanwhile, the coast line was categorized as of erosional and accumulative type. In those studies, the role of sea waves and euastatic change of sea level in the process of sediment supply in coastline is neglected. Transgression and regression was interpreted according to Theory of Geosynclinals, as tectonic subsidence or uplift of continental area. From observations in Borshi beach, during August 2013 and September 2015, result that the sediment in this area originate mainly from the erosion of coast line rocks, and less from sediments transported by continental flows. Some traces of marine sediments inside the continental area, in ahigher hypsometric quote regarding the actual coastline traces of erosion in some infrastructure works dated of the decade 70’ and 80’ of 20th century, are argument of a temporal rise of sea level during the decade 90’ of past century.

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