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Research Article
Moshe Gophen* View abstract
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The Lake Kinneret Ecosystem has undergone significant modification since mid-1980`s which particularly were: The previous trophic status of Phosphorus limitation was modified to Nitrogen limitation; the long-term domination of Peridinium gatunenze (PRG) was declined and replaced by Cyanobacteria, Chlorophytes and Diatoms. The distribution enhancement of Harmful Cyanobacteria (HFCB) in Lake Kinneret initiated in summer 1994 when a bloom of Aphanizomenon ovalisporum was documented followed by several studies about the outbreak of HFCB were carried out [1,2]...... ReadMore -
Mini ReviewA Critical Review on Biosurfactants Properties, Production, And Application in Enhanced Oil Recovery
Hamed Aboelkhair* and Pedro Diaz and Attia Attia View abstract
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The world’s total primary energy consumption (TPEC) has recorded a steep rise within the last decades reaching 150,000,000 GW.h in 2015 [1]. About 57% growth of this value is expected by 2050 owing to the rapid industrial development and urbanisation that has occurred globally. Presently, fossil fuels including petroleum and natural gas are the main sources of energy [2]. According to the statistical review of the world’s energy, which is annually published by British Petroleum (BP), consumption of energy has extensively increased during the last decade [3]. The reasons for increases in energy consumption include industrial development, population growth and the inauguration of new technologies. Industrial developments in different applications require excessive energy for operations using either electricity or heating energies. Elect..... ReadMore
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Mini Review
Laxman Pujari* and Jun Sun View abstract
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Generally, phytoplankton exhibits high species diversity and wide range of variation which makes them most successful primary producer in contemporary global oceanographic regimes. When compared to its counterpart of terrestrial ecosystem, phytoplankton species diversity is twelve-fold lower, however, taxonomic divisions are eight times higher than terrestrial plants. Therefore, it is important to investigate the detailed composition of phytoplankton and study their spatiotemporal distribution in the marine environment. In the present review, we have assessed the detailed community composition of cormophytic phytoplankton with their variability in the world oceans...... ReadMore
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Opinion
Bensekhria Aida*, Marmi Ramdane and Yahiaoui Abdelouahab View abstract
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Decipher what the Earth’s ancient environment was like thousands, may be millions of years ago became one of the most objectives of paleontology and Archaeology. Nevertheless, the significant fluctuations of the microfauna contents and the dominance phases of alternation between benthic and planktonic foraminifera reveal changes as well in the depositional environment. The results of this study indicate that the supposed depositional environment is a calm and relatively deep environment which can be located around the middle to the external platform, where the depth of waters exceeds 200 m. These waters are characterized by a poor percentage in oxygen (Figure 1a)...... ReadMore
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Research Article
VeeraKrishna M*, Subba Reddy G and Ali J Chamkha View abstract
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In this paper, a probe on the impact of Hall effects on the flow of an oscillatory convective MHD viscous, incompressible, radiating and electrically conducting second-grade fluid in a vertical porous rotating channel in a slip flow regime is carried out. The fluid is assumed to be gray, absorbing and emitting radiation in a non-scattering medium. It is presupposed that MHD flow is laminar and fully developed. In order to use the regular perturbation technique, the solutions of velocity and temperature distributions for the governing flow are obtained. The profiles of velocity and temperature are presented graphically. On the other hand, the skin friction coefficient and the Nusselt number are evaluated numerically and presented in the form of tables, examined and discussed for various values of the flow parameters that govern it...... ReadMore
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Mini Review
AM Orlov* View abstract
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In recent years, the intensive study of deep-sea ecosystems (continental slopes, seamounts, depressions and troughs) of the world ocean has received increased attention due to the high level of endemism of their biota and extreme vulnerability to any impacts, especially from humans [1,2]. While in the past, researchers aimed to obtain knowledge, mainly on the qualitative and quantitative composition of the population of deep-sea ecosystems, at the present stage it is becoming increasingly important to assess the human impact on them, to ensure the conservation of biological and genetic diversity, the safe and sustainable use of biological resources and their protection from destruction in the course of human economic activities (fishing, mining, shipping, etc.)...... ReadMore
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Research Article
Nanan Kouamé Félix kouadio* View abstract
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In both Côte d’Ivoire and Africa, unlike men, women suffer from low levels of education. She is thus confronted with problems of integration into the social fabric due to her lack of education. Fish farming and related activities that do not necessarily require a high level of intellectual knowledge are an opportunity for them. This study aims at showing how fish farming contributes to the integration of women into the Ivorian social fabric, particularly in the municipality of Bingerville. The work method used is documentary research and field surveys conducted on fish farms and fish farm marketing sites identified in the study area. The results of our analyses reveal that fish farms initiated in lagoons and lowlands are a source of job creation for women...... ReadMore
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Mini Review
Guagliardo S*, Schwerdt C, Tanzola D View abstract
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The estuary of Bahía Blanca (39° 03′44 ″ S 62° 04′00 ″ W) occupies a large coastal area south of the province of Buenos Aires, Argentina. This area includes urban centers, several industrial parks and deep-water ports. The parasites sensitivity to pollutant and environmental disturbances makes many taxa useful indicators of environmental health and anthropogenic impact. In the present study, the variation in helminth communities of Sympterygia bonapartii was analyzed retrospectively after a period of 18 years. Infra-communities harbored an average of four times more parasites and became less equitable. A gradual increase in organic matter added to the parameters synergy caused by untreated sewage discharges, seems to have been the most important impact on helminth communities, altering the abundance, dominance and eveness. The ..... ReadMore
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