Application of the dating by fission tracks to determine thermicity of basins within petroleum potentialities: example of Sbaa and Ahnet-North basins located in Western Saharan platform , Algeria. The interpretation of old fundamental research works and the results obtained by this study based on: the analysis of apatite fission tracks AFT , the burial evolution curves and the sequential analysis of outcrop section, as well as the curves of signal of gamma ray GR analysis from drilling wells, allow to precise that the geodynamic evolution of the studied Algerian sedimentary basins Ahnet and Sbaa have been occurred principally in the Paleozoic era. The analysis of burial evolution curves shows that during the Paleozoic period, the sedimentation is controlled by the tectonic subsidence, particularly at the end of Carboniferous in the favor of Ougarta folding. The curves indicate an uplift from the Permian to middle Jurassic, expressed by an important erosion of sedimentary series and is considered as a response of thermal convection of the Saharan platform followed by thermal subsidence. This can be explained by the halt motion of rift extension caused by the opening of the Atlantic Ocean. To bring the sequential analysis out, it appears that Ahnet and Sbaa basins present contrasted stratigraphic recordings, so much in time than in space, indicated the different effects from subsidence and erosions according to their sectors.
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Application of the dating by fission tracks to determine thermicity of basins within petroleum potentialities: example of Sbaa and Ahnet-North basins located in Western Saharan platform , Algeria. The interpretation of old fundamental research works and the results obtained by this study based on: the analysis of apatite fission tracks AFT , the burial evolution curves and the sequential analysis of outcrop section, as well as the curves of signal of gamma ray GR analysis from drilling wells, allow to precise that the geodynamic evolution of the studied Algerian sedimentary basins Ahnet and Sbaa have been occurred principally in the Paleozoic era.
The analysis of burial evolution curves shows that during the Paleozoic period, the sedimentation is controlled by the tectonic subsidence, particularly at the end of Carboniferous in the favor of Ougarta folding. The curves indicate an uplift from the Permian to middle Jurassic, expressed by an important erosion of sedimentary series and is considered as a response of thermal convection of the Saharan platform followed by thermal subsidence.
This can be explained by the halt motion of rift extension caused by the opening of the Atlantic Ocean. To bring the sequential analysis out, it appears that Ahnet and Sbaa basins present contrasted stratigraphic recordings, so much in time than in space, indicated the different effects from subsidence and erosions according to their sectors. In thermal point of view, temperatures are still moderate in Sbaa depression and favorite the preservation of organic matter and might generate hydrocarbons until now.
However, these conditions are not similar to ones in the case of Ahnet basin. This phase could be estimated probably more than C. This is also produced during the regional extension of the Triassic-Jurassic rifting.
This episode could also be responsible of disappearance total? The government of Algeria parallels the government of the United States in structure containing an executive, legislative and judicial branch and based on a constitution.
The roles of the government are discussed as are political conditions and the founding history of the present government. Also discussed is the Algerian defense and foreign relations. The Berbers are the indigenous people of Algeria. European influence, particularly French, is still prevalent however.
Natural resources include oil, natural gas, iron ore and uranium, and the most prevalent industries are involved with the production and processing of these resources.
While Algeria has made great inroads in the areas of health and education, it still faces a growing problem: housing. Conditions for travel, i. National legislative and regulatory activities concern different subjects in relation with radiation protection and nuclear safety.
Ionizing radiations, radioactive waste management food irradiation are texts presented for Algeria ; regulation on ionizing radiation dose limits and regulation on positions for ensuring nuclear safety and radiological protection and on radiological protection inspectors are the texts for the Poland; a detailed subject is presented by Romania with an order on methodological norms regarding planning, organisation and intervention in the event of a nuclear accident or radiological emergency; nuclear third party liability for switzerland; law on the decision-making process applicable in the siting, design, and construction of nuclear installations and radioactive waste management facilities for Ukraine are some of emerging points found in this part.
The main characteristics of the lower Triassic in the Saharan part of Tunisia are presented. This first study of the aquifer is made possible because of data available from numerous petroleum wells that exist in the region. Along the Tunisian-Llibyan frontier, because of its pressure and salinity The Triassic-Liassic volcanic sequence and rift evolution in the Saharan Atlas basins Algeria. Eastward vanishing of the Central Atlantic magmatic province. Based on detailed mapping, two episodes are identified.
The first one consists of a volcano-sedimentary sequence in which three volcanic units were identified lower, intermediate and upper units. They are interlayered and sometimes imbricated with siliciclastic to evaporitic levels which record syn-sedimentary tectonics.
This sequence was deposited in a lagoonal-continental environment and is assigned to the Triassic magmatic rifting stage. The second episode, lacking lava flows post magmatic rifting stage , consists of carbonate levels deposited in a lagoonal to marine environment during the Rhaetian-Hettangian.
The volcanic units consist of several thin basaltic flows, each 0. Upwards decrease of light-rare-earth-elements enrichment e. The lava flows from the Saharan Atlas share the same geochemical characteristics and evolution as those from the Moroccan Atlas assigned to the Central Atlantic magmatic province. They represent the easternmost witness of this large igneous province so far known.
Henry, B. Large subhorizontal movements have occurred during the Pan-African orogeny and several groups of granitoids intruded during the Neoproterozoic. A comprehensive and detailed sites, more than cores magnetic fabric study was performed on 8 plutons belonging to the three magmatic suites and distributed on km along the Raghane shear zone.
The main minerals in all the target plutons do not show visible preferential magmatic orientation except in narrow shear zones. The AMS study shows that all plutons have a magnetic lineation and foliation compatible with the deformed zones that are zones deformed lately in post-solidus conditions. These structures are related to the nearby mega-shear zones, the Raghane shear zone for most of them. The old c.
The magnetic structures of the c. Finally, the c. These NW-SE oriented structures appear to be characteristic of the late Neoproterozoic evolution of the Saharan metacraton and are in relation to the convergence with the Murzuq craton. Polygalacturonase is a valuable biocatalyst for several industrial applications. Production of polygalacturonase using the Aureobasidium pullulans stain isolated from Saharan soil of Algeria was investigated.
Its capacity to produce polygalacturonase was assessed under submerged culture using tomato pomace as an abundant agro-industrial substrate. Optimization of the medium components, which enhance polygalacturonase activity of the strain Aureobasidium pullulans , was achieved with the aid of response surface methodology.
Practical validation of the optimum medium provided polygalacturonase activity of Batch cultivation in a 20 L bioreactor performed with the optimal nutrients and conditions resulted in a high polygalacturonase content This enzyme was stable at a broad pH range 5.
The enzyme proved to be an exo-polygalacturonase, releasing galacturonic acid by hydrolysis of polygalacturonic acid. Moreover, the exo-polygalacturonase was able to enhance the clarification of both apple and citrus juice. As a result, an economical polygalacturonase production process was defined and proposed using an industrial food by-product.
Directory of Open Access Journals Sweden. Full Text Available Polygalacturonase is a valuable biocatalyst for several industrial applications. Optimization of the medium components, which enhance polygalacturonase activity of the strain Aureobasidium pullulans, was achieved with the aid of response surface methodology. Full Text Available Soil erosion by rain and surface runoff is an important problem in the Mediterranean countries. The study of the relationship between erosion and sediment transport with hydrological and climatic factors have b een conducted in many countries around the world.
The aim of this work is to show ra infall impact on the variability of spatial and temporal concentration in twelve drainage basins in the west of Algeria. We will also seek to find a representative parameter of rainfall erosive potential on a Time and spatial scale.
When studying sediment transport in twelve drainage basins of the Centre and the west of Algeria , we have found that the modified Fournier index Which explains much of the specific degradation comp ared to the Fournier index. The study of the temporal variability of the annual rain fall series, modified Fournier index and concentration of the precipitation in the year for a series from to showed a negative trend of the two variables. This de cline is more significant in inland areas.
Since the beginning of the century the expulsion of sub- Saharan migrants from Algeria to the Northern Malian border has become a regular event. Hunger is the main aspect of expelled migrant life, caused by poor rations in Algerian jails, daily fear in the ghettos organized into national micro-communities on the border and the limited supply of emergency aid. Hunger is simultaneously a primal suffering, a political issue and an argument for humanitarian aid.
We describe the process of expulsion and the erratic journey of migrants after deportation as itineraries of hunger. These itineraries are considered from two points of view; the state processes involved in these collective deportations and the precarious strategies invented by expelled migrants to survive. A combination.
IDRC in Algeria. Grantee: Centre de Recherche en. Agency, in cooperation with the Canada's The role of 'hidden' community volunteers in community-based health service delivery platforms : examples from sub- Saharan Africa. Community-based research on child survival in sub- Saharan Africa has focussed on the increased provision of curative health services by a formalised cadre of lay community health workers CHWs , but we have identified a particular configuration, that deserves closer scrutiny.
Whilst the disease-focussed tasks of the formal CHW tier may be more amenable to classic epidemiological surveillance, we postulate that understanding the relationship between formalised CHWs and volunteer cadres, in terms of scope, location of practice and ratio to population, would be important for a comprehensive evaluation of child survival in these countries. We report on the findings from our joint qualitative and quantitative investigations, highlighting the need to recognise the 'hidden' contribution of volunteers.
We need to better characterize the volunteers' interaction with community-based and primary care services and to better understand ways to improve the volunteer systems with the right type of investments.
This is particularly important for considering the models for scale-up of CHWs in sub- Saharan Africa. Enzootic plague foci, Algeria. Multiple spacer typing confirmed a new Orientalis variant. Rodent survey should be reinforced in this country hosting reemerging plague. Algeria : Country Status Report. A survey of the status of language usage in Algeria begins with an overview of the usage patterns of Arabic, the Berber languages, and French.
The country's return to Arabic as its official language after independence from France in is discussed along with the resultant language planning, issues of language of instruction at the elementary,….
Algeria 's big south. The implications of the civil war in Algeria for the oil and gas industry there are discussed. Topics covered include repairing pipelines, risks for oil and gas workers, the importance of revenues for the Algerian economy, quota busting, and security implications for the European business. Dendroagricultural Signal in Algeria.
Touchan, R. Dalila Kherchouche2, Kevin J. Meko1Drought is one of the main natural factors in declining tree-ring growth and the production of agricultural crops in Algeria. Here we will address the variability of growing conditions for wheat in Algeria with climatic data and a tree-ring reconstruction of January-June precipitation from ten Pinus halepensis tree-ring chronologies.
A correlation-based sensitivity analysis shows a similar pattern of dependence of tree-growth and wheat production on monthly and seasonal precipitation, but contrasting patterns of dependence on temperature. The patterns are interpreted by reference to phenology, growth phases, and - for wheat agricultural practices. We apply these interpretations to understand possible impacts of climate variability on the agricultural productivity of past civilizations in the Mediterranean.
Lowell St. Fuel gases in Algeria. For a country like Algeria , fuel gases represent an important economical challenge.
A rare cause of ascites: Multiple myeloma.
Important User Information: Remote access to EBSCO's databases is permitted to patrons of subscribing institutions accessing from remote locations for personal, non-commercial use. However, remote access to EBSCO's databases from non-subscribing institutions is not allowed if the purpose of the use is for commercial gain through cost reduction or avoidance for a non-subscribing institution. Source: Gulhane Medical Journal. Abstract: A 65 year old male patient who have diagnosis of multiple myeloma for three months. The abdominal ultrasonography was performed upon development of swelling in the abdomen and legs prior to the third cycles of chemotherapy treatment. On ultrasonographic examination the liver was normal but there was free fluid in abdomen.
A rare cause of acid: galactosemia/Nadir bir assit nedeni: galaktozemi
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