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Wyszukujesz frazę "Nile" wg kryterium: Temat


Tytuł:
Spór o zasoby wodne Nilu w środkowej i północno-wschodniej Afryce. Krótki zarys problemu
A dispute about the Nile water supplies in the central and north-east Africa: a short sketch of the problem
Autorzy:
Dzhantamirov, Akhmed
Powiązania:
https://bibliotekanauki.pl/articles/567012.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie. Instytut Nauk Politycznych
Tematy:
Nile river
Egypt
Conflicts
Opis:
Rivers have always been in great importance in the process of arising and developing the human civilisation. Many ancient cultures were very powerful because of the huge rivers systems. Such civilizations as Egypt, Mesopotamia, India and China came into being in the grand rivers valleys (Nil, Tiger, Euphrates, Indus, Ganges, Yangtze and Huang He). Nowadays those rivers also play the vital role because of the fact that of its state and affluence mainly depends the economic stability and in that connection depends also the politic stability in the countries that those rivers flow through. Those dependences and connections between people and rivers were best characterised by the Greek historian Herodotus in his saying "Egypt is a gift from the Nile". Contemporary domestic and international rules of using the rivers resources are regulated by the law rules. The international law rules mainly deal with law classification and the division of the international rivers, water transport on those rivers and the methods of making out the rivers boundaries. Determining the international law rules, effectively regulating the exploitation of the international rivers, face many obstacles. The reason of this situation are differences in exploiting the rivers resources in particular States, which depends on many aspects (economic, geographical, cultural, etc.). The very best example of the complexity of the international rivers systems matter is the Nile river. Present-da y, for the Nile's drainage basin states, establishing the new international law regulations and the arrangements concluding the rational exploitation and division of the rivers resources is the main problem. In the light of the II article of the 1966 Helsinki Rules on the Uses of the Waters of International Rivers, an international drainage basin is a geographical area extending over two or more States determined by the watershed limits of the system of waters, including surface and underground waters, flowing into a common terminus. According to this criterion, ten States count among drainage basin of the Nile river (those States are as follows: Egypt, Sudan, Ethiopia, Eritrea, Burundi, Ruanda, Kenya, Uganda, Tanzania and the Democratic Republic of Congo. Those States are now developing and theirs weak national economies are based on agriculture. The Nile as one of the biggest and most resourceful river on the world, is a great opportunity for those countries to develop. Unfortunately, present international legal system does not allow to exploit the Nile’s water resources in optimal and fair way, because this system does not embrace most of the States of the drainage basin. Such situation cause conflicts and tensions in relations between those States.
Źródło:
Forum Politologiczne; 2010, 10 - Przestrzeń i granice we współczesnej Afryce; 391-402
1734-1698
Pojawia się w:
Forum Politologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodiversity of zoosporic fungi in polluted water drainages across Niles Delta region, Lower Egypt
Autorzy:
Ali, E.H.
Powiązania:
https://bibliotekanauki.pl/articles/67773.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
biodiversity
zoosporic fungi
fungi
polluted water
water pollution
drainage
Nile River
Lower Egypt
Egypt
Nile Delta
Opis:
Thirty-four identified in addition to five unidentified species appertaining to ten genera of zoosporic fungi were identified and isolated from eighty four polluted water samples, which were randomly collected from different polluted sites of the water drainages along the Niles Delta in Lower Egypt. Baiting sesame seeds culture technique was employed at 20±2°C for the recovery of zoosporic fungi. The genera; Pythium and Saprolegnia (8 and 7 zoosporic fungal species, respectively) showed the broadest spectra of species diversity whereas Aqualinderella was only represented by one species (A. fermentans). Saprolegnia delica and Dictyuchus carpophorus(the greatest fungal populations) were the most dominant isolated zoosporic fungal species where they were highly occurred especially at the hyperpolluted waters with the heavy metals. These two species could be considered as indicators for the response of the structure and function of microbial communities for water pollution. Several zoosporic fungal species were rarely encountered. Both Aqualinderella fermentansand Pythium rostratumwere recovered in moderate frequency of occurrence. Water samples which had high concentrations in heavy metals were the poorest in the species diversity of zoosporic fungi. Despite that, fungal species belonging to the family Saprolegniaceaeflourished in hyper polluted water samples whilst those belonging to the family Pythiaceae predominated in more diluted water samples. Also, the prevalent species; S. delica andD. carpophoruswere not affected by heavy metals concentrations being as indicators for water pollution with the heavy metals. pH values of the polluted water samples had no influence on the occurrence of zoosporic fungi. Water samples characterized by high organic matter content and low total soluble salts were the richest in zoosporic fungal species.
Źródło:
Acta Mycologica; 2007, 42, 1
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An importance of neolithic-early dynastic-the end of old kingdom transition in ancient Egypt : geological evidences of climatic oscillations – future project
Autorzy:
Pawlikowski, M.
Szymanowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/343857.pdf
Data publikacji:
2013
Wydawca:
nakł. Maciej Pawlikowski
Tematy:
Nile Delta
climatic oscillations
geoarchaeology
interdisciplinary research
Opis:
Field as well as archaeological, mineralogical and geochemical investigation of Nile Delta settlement and sediments will be performed, during the future project presented in this paper. Presented project will explain the impact of climatic changes on Neolithic-Early Dynastic-the end of Old Kingdom transition in the history of ancient Egypt.
Źródło:
Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering; 2013, 16; 1-6
1689-6742
Pojawia się w:
Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Light and Scanning Electron Microscopy (SEM) of Ortholinea africanus Abdel-Ghaffar et al., 2008 (Myxozoa: Myxosporea) Infecting Tilapia Fish Oreochromis niloticus (Osteichthyes: Cichlidae) with Description of Preparation of Coelozoic Myxosporea for SEM
Autorzy:
ALI, Mohamad Ahmad
Powiązania:
https://bibliotekanauki.pl/articles/763682.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
Tematy:
Myxosporea, Ortholinea, Oreochromis, Protozoa, Parasite, Tilapia, Nile
Opis:
Ortholinea africanus Abdel-Ghaffar et al., 2008 is re-described using light and scanning electron microscopy (SEM) to reveal the external ornamentation of the spores. Present spores matched the original description in morphology but were larger in all dimensions. They measured 9.6 ± 0.8 (8.1–10.9) μm in length, 9.5 ± 0.6 (8.8–10.9) μm in width and 8.9 ± 0.4 (8.6–9.1) μm in thickness. Polar capsules were 3.9 ± 0.3 (3.0–4.3) μm in length with polar filaments turned 4–6 turns. The pattern of polar filament coils was different in each of the polar capsules. In the same spore, one capsule contained oblique filament turns to the longitudinal axis of the capsule, while the other capsule contained perpendicular turns. SEM revealed completely different shell ridge patterns than those described by light microscopy in the original description. This emphasizes the necessity of SEM in the reliable description of any myxosporean genera with external shell ornamentation like Ortholinea and Chloromyxum. The present species is considered the first (purely) freshwater Ortholinea described from a proper freshwater host. Three different methods of isolation and preparation of coelozoic spores for SEM were evaluated. The best combination was using a syringe filter holder with a membrane filter of 5 μm pore nucleopore filters.
Źródło:
Acta Protozoologica; 2009, 48, 2
1689-0027
Pojawia się w:
Acta Protozoologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
GRAND ETHIOPIAN RENAISSANCE DAM AND THE RISK OF A WAR IN THE HORN OF AFRICA
Autorzy:
Popescu, Alba Iulia Catrinel
Powiązania:
https://bibliotekanauki.pl/articles/483852.pdf
Data publikacji:
2017
Wydawca:
Wyższa Szkoła Biznesu i Przedsiębiorczości w Ostrowcu Świętokrzyskim
Tematy:
Nile River
Blue Nile
Grand Ethiopian Renaissance Dam
Ethiopia
Egypt
Muslim Brotherhood
Sudan
China
Horn of Africa
War
Migration
Opis:
In the climate change context, controlling water sources is one of the most explosive challenges to the stability of the security environment. In its quasitotality, human civilization was born in the basins of the great rivers, which provided humans with both the basic survival and development resources and natural protection against invasions. Such a watercourse is the Nile, in whose basin the great Egyptian, Nubian and Ethiopian civilizations were born. If, until recently, Egypt was the main beneficiary of the Nile's ”gifts“, Grand Ethiopian Renaissance Dam (GERD) project, still in construction on the Blue Nile, will radically change the status quo in region. How will GERD going to influence the regional hydro-policy? Is there any risk for a regional war outbreak? And, if the answer to the previous question is a positive one, what could be the impact of an Egyptian-Ethiopian conflict on regional security?
Źródło:
Ante Portas – Studia nad Bezpieczeństwem; 2017, 2(9) Security Issues in Sub-Saharan Africa; 121-145
2353-6306
Pojawia się w:
Ante Portas – Studia nad Bezpieczeństwem
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Is West Nile Fever a threat for Polish travelers visiting tropical and Mediterranean areas?
Autorzy:
Kludkowska, M.
Paul, M.
Powiązania:
https://bibliotekanauki.pl/articles/6014.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
West Nile fever
mosquito-borne infection
West Nile virus
tropical disease
patient
threat
Polish traveler
tropical area
Mediterranean area
Źródło:
Annals of Parasitology; 2016, 62, Suppl.
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of pH on the activity and structure of choline oxidase from Alcaligenes species
Autorzy:
Hekmat, Azadeh
Saboury, Ali
Moosavi-Movahedi, Ali
Ghourchian, Hedayatollah
Ahmad, Faizan
Powiązania:
https://bibliotekanauki.pl/articles/1040713.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
optimum pH
choline oxidase
nile red
glycine-betaine
Opis:
A reversible effect of pH on the ionization of amino-acid residues at the active center of choline oxidase was observed near the optimum pH (8). Inactivation of choline oxidase took place in the pH ranges 3-6 and 9-11, in which irreversible changes in the structure occur leading to the enzyme inactivation. The first order rate constants of the enzyme's inactivation at various pH values were estimated for the irreversible changes. The Arrhenius analysis revealed no significant changes in the activation enthalpy, while an increase in the activation entropy reflected an increase in the conformational freedom.
Źródło:
Acta Biochimica Polonica; 2008, 55, 3; 549-557
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Holocene Lake and shallow water sedimentsat Mograt Island, Sudan
Autorzy:
Dittrich, Annett
Neogi, Sayantani
Powiązania:
https://bibliotekanauki.pl/articles/2026007.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Holocene
Nile Valley
insular environments
palaeolakes
soil micromorphology
Opis:
This paper presents the results of stratigraphic excavation and soil studies carried out at Mograt Island, the largest of the Nilotic islands in Sudan. Due to its restricted insular environments, Holocene alluvial deposits were observed to be interlocked with archaeological remains of different periods, allowing for a combined chronostratigraphic approach to study both cultural and climatic events. To better understand the environmental context through soil components and pedological features at a microscopic scale, soil block samples were accordingly collected and studied by the application of soil micromorphology. This approach provides insights into the history of Nile terrace aggradation through the suspension of Nile sediment loads under stillwater conditions as well as of the periodical establishment of shallow water pools at the islands’ plateaus by the surface run-off from local rains. Since these patterns vary significantly from the present situation, they offer a key to the scenario in which specific early agricultural and animal herding practices evolved.
Źródło:
Studia Quaternaria; 2017, 34; 9-21
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Banganarti Nativity: Enkolpion with scene of the Birth of Jesus from House BA/2015 in Banganarti
Autorzy:
Żurawski, Bogdan
Powiązania:
https://bibliotekanauki.pl/chapters/1053148.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
pilgrimages
Nativity
Christian iconography
Middle Nile
Middle Ages
Opis:
The slate enkolpion engraved with the Nativity scene was found in one of the dwellings to the east of the Upper Church (Raphaelion II) in Banganarti. On the reverse, it was inscribed with the names of the three main protagonists of the scene carved on the obverse. It seems to have been used very briefly before being lost. Distinctive features include a figure of St Joseph represented as a herm and the putative Star of Bethlehem rendered as a round object hovering above the manger. The Magi and the scene of the Bathing of Jesus are missing. There is also one animal instead of two at the crib and one adoring shepherd not two (or even three). The aim was evidently to present the entire theological canon of the Nativity dogma using a minimum of iconographic elements, which is hardly surprising owing to the scarcity of space. Dating on stylistic grounds is highly speculative owing to the sketchiness of the scene, but the archaeological context seems reliable, yielding pottery from AD 1020–1172, which was a time of vigorous development of the pilgrimage movement to Banganarti.
Źródło:
Aegyptus et Nubia Christiana. The Włodzimierz Godlewski jubilee volume on the occasion of his 70th birthday; 647-657
9788323547266
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Callovian and Kimmeridgian fossils and stratigraphy of the Blue Nile Basin (central western Ethiopia)
Autorzy:
Jain, Sreepat
Schmerold, Roland
Powiązania:
https://bibliotekanauki.pl/articles/1835971.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Orthosphinctes
Pachyceras
Paracenoceras
Jurassic
Blue Nile Basin
Ethiopia
Opis:
A refined, stratigraphic and biostratigraphic framework for Ethiopia has a strong bearing on the Jurassic sedimentary evolution, not only for the Horn of Africa, but also for the North African region. The present contribution provides an updated Callovian-Kimmeridgian stratigraphy and biostratigraphy, on the basis of the occurrences of age-diagnostic ammonites from Dejen (Blue Nile Basin; central western Ethiopia). Here, the late Callovian (Lamberti Zone) ammonite Pachyceras cf. lalandeanum (d'Orbigny) is associated with the nautiloid Paracenoceras cf. giganteum (d'Orbigny). The early Kimmeridgian Orthosphinctes aff. tiziani (Oppel) is associated with the nautiloids Paracenoceras cf. kumagunense (Waagen) and P. cf. ennianus (Dacqué) and a large gastropod Purpuroidea gigas (Étallon). The previously recorded middle Callovian ammonite Erymnoceras cf. coronatum (Bruguiere) is associated with the now recorded P. gigas (Étallon). Additionally, the age of the Antalo Limestone Fm is also reassessed on the basis of the ammonite records from the three basins - Ogaden, Blue Nile and Mekele. The Ogaden Basin strata span from the late Callovian to the late Tithonian (from ammonite records), the Blue Nile Basin from the early Callovian to the late Tithonian (calcareous nannofossils) and the Mekele Basin from the uppermost middle Oxfordian to the early Kimmeridgian (ammonite records). However, the upper age assignments should be considered tentative, as much of the previously recorded Oxfordian-Kimmeridgian ammonite fauna needs taxonomic re-evaluation and precise resampling. Contextually, it should be mentioned that in all the three sedimentary basins, the top part of the Antalo Limestone Fm did not yield any ammonites.
Źródło:
Annales Societatis Geologorum Poloniae; 2021, 91, 3; 287-307
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł

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