Volume 5, Issue 8
HEIDEGGER AND HEGEL ON BEING: A COMPARATIVE ANALYSIS [PDF]
Peter Z. Alawa In our society today, people have different understanding concerning being, some believe that being means “living” and others are confused. But historically, it was during the pre-Socratic that Parmenides of Elea created a big problem in philosophy by saying that being “is” and non-being “is not”. Therefore some accepted Parmenides’ position while others rejected it. This article is a reaction against what Parmenides said and these two philosophers Heidegger and Hegel will react to Parmenides point of view. Martin Heidegger is a German philosopher. He is called “the philosopher of Being”. For Heidegger, Being is a mystery. Friedrich Hegel is also a German philosopher, he believes in being and the Absolute spirit. According to Hegel the Absolute Spirit is not Holy Spirit or God but the principle that guides the universe. Heidegger and Hegel believe in the existence and reality of being. The difference is that Heidegger maintains that “Being” is a mystery that can be approached but cannot be penetrated. While Hegel believes that human reason can encompass or penetrate all realities. Our method is textual analysis. It means reflecting on the original works of our authors and also books written on them by other writers to discover the similarities and differences between Hegel and Heidegger.
EVALUATION OF THE IMPACTS OF OIL SPILLAGE ON SOIL FERTILITY AND SUSTAINABLE LIVELIHOODS IN OIL-BEARING COMMUNITIES OF ABIA STATE, NIGERIA [PDF]
Ifeanyichukwu Kazi Ibekwe Oil spillage is a major environmental challenge in the oil- and gas-bearing communities of Abia State, Nigeria. Despite the huge revenues that have accrued to the Nigerian state and oil companies operating in these communities, the communities have not fared well in terms of socio-economic development and the sustainability of the livelihoods of households. They have seen a steady decline in agricultural produc-tivity and fish catch over time, resulting to lowered household incomes and the aggravation of poverty levels. The decline in farm yield and household incomes has been linked to the repeated oil spill impact in the area which has, in turn, led to the loss in soil fertility. The aim of this study therefore, is the evaluation of the impacts of oil spillage on soil fertility and sustainable livelihoods of houselds in the oil-bearing communities of Abia State, Nigeria. A combination of the participatory research appraisal and the survey methods was used to collect the primary data used for the study. A questionnaire, which was designed and instrumented to elicit information on the socio-demographic fea-tures of households, was administered to respondents in the area. Data on farm crop yield and its measurement were obtained through the participatory research appraisal method. In addition, samples of oil-impacted and control (not oil-impacted) soils were tested for major indi-ces of soil fertility, namely, pH, Available Phosphorous, Total Nitrogen, Total Organic Carbon and Total Organic Matter given the prevailing physico-chemical conditions of temperature, moisture content and electrical conductivity. All the indicators from the results of the tests of the oil-impacted soil samples from the oil-bearing communities of Umuorie, Owaza and Uzuaku/Imo River confirmed enormous reduction in soil fertility especially when compared with the control soil samples from the communities. It is recommended, among others, that a quick and timely recovery process must be initiated each time there is oil spill since the seriousness of oil spill impact is directly related to the speed of recovery of impacted habitats and species.
STABILISATION OF CLAYEY SOIL USING GRAPHENE OX-IDE AND FLY ASH [PDF]
Avtar Singh, Dr. B.S. Walia, Maninder SinghIn this study, the effect of Graphene oxide (G.O) and Fly Ash (F.A) on Unconfined Compressive Strength (UCS) of Clayey Soil was studied. F.A content was taken as 15%, 20% & 25% and Graphene Oxide content was taken as 0.25%, 0.5%, 0.75% & 1% by weight of soil. The study was carried out with a view to utilize waste material as construction of road embankment, earth slope or in filling of low lying area. The week soil may be utilized along with these material as due to pozzolanic action, the strength of week soil is improved upto desirable load. UCS value increased with increase in dose of Fly Ash up to 20% and afterward it decreased. Therefore, optimum dose of F.A was taken as 20%. Further UCS test was carried out by mixing Graphene Oxide and 20% F.A in soil. The UCS value increases by adding 20% Fly Ash and 0.75% Graphene Oxide (G.O) by weight of soil and was defined as an optimum dose.
SYNTHESIS OF 3YSZ NANOPOWDERS BY CO-PRECIPITATION METHOD AND INVESTIGATION OF INFLUENCE OF PROPANOL ON AGGLOMERATION STATE [PDF]
Pratima.S.Joshi,Dr.S.B.PatilPartially stabilized zirconia is known for its superior mechanical properties such as high hardness and toughness.Partially stabilized zirconia are prepared by adding stabilizers such as CaO,MgO,Y₂O₃ and CeO₂ in monoclinic zirconia.However,due to aesthetic application for dental prosthesis,yttria partially stabilized zirconia have been of great interest.The synthesis of 3YSZ by coprecipitation process that is washed with water resulted in agglomerated nanopowders that inhibit sinterability.To enhance sinterability the nanopowders needs to be deagglomerated.Also it has been reported that washing of water washed coprecipitated mass of yttrium-zirconium hydroxide with solvents such as methanol,ethanol, propanol and butanol reduces the extent of agglomeration. In addition to the washingmedium, drying temperature also significantly influences the agglomeration state of YSZ.Already it has been worked on the agglomeration state of 3YSZ nanopowders washed with ethanol.Hence an attempt has been made to wash with varying amount ofpropanol to reduce the agglomeration state of 3YSZ nanopowders.Influence of propanol treatment ofco-precipitated yttrium–zirconium hydroxide on agglomeration of calcined nano 3YSZ powder was studied. Nanocrystalline 3YSZ (3 mol% yttria stabilized zirconia) powders were synthesized through co-precipitation followed by washing with propanol and calcination at different temperatures in the range of 100˚–500 °C. Results indicated that the amount of propanol used in washing the zirconium hydroxide precipitate had a significant impact on the calcined powder characteristics. Different ratios of propanol to the water contained within the precipitate were used during washing and the calcined nano 3YSZ powders were characterized in terms of tap density, green density and FTIR(Fourier Transform Infrared Spectroscopy) .The other characterization techniques such as X-ray diffraction(XRD),Thermo-gravimetric-Differential thermal analysis(TG-DTA),Transmission electron microscope(TEM) has been also carried.The results indicated that a minimum propanol amount of 2–3 times that of water in the precipitate was required to achieve superior agglomeration state of the calcined 3YSZ nanopowders. The nanopowders obtained by washing with optimum propanol amount resulted in high green density of compact and lower tap density with high volume occupancy of nanopowders when tapped.Agglomeration state of the calcined 3YSZ nanopowders attainment with varying volume% of powder characteristics was studied. The results revealed influence of varying amount of propanol on 3YSZ nanopowders reduced the agglomeration state of nanoparticles.The 1:4 ratio of 3YSZ precipitate washed with propanol amount showed the good agglomeration state of nanoparticles.
AN EXPERIMENTAL STUDY TO DETERMINE THE IMPACT OF SEQUESTERING AGENT IN TEXTILE WET PROCESSING [PDF]
Md.Salauddin SkSequestering agents can be used at most stages of textile wet processing of fibres, yarns, and fabrics. The general aim is to chemically remove, render, inert, any metallic ions that can interrupt further processing. This also includes the alkaline earth metals, such as calcium, magnesium. The emphasis as to which ions are required to be sequestered depends upon the process taking place .Use of sequestering agent have the advantage of aiding in the dispersion of by-products in bleaching and prevention of dye aggregation. From our study we have seen that with the increase of pH in bleaching the performance of sequestering agent reduced significantly .It is also observed that when dosing of sequestering agent increase beyond a level the CIE whiteness value decreases. For water correction with the increase of dosing of sequestering agent, hardness gets down.
The influence of rotation of stars on their radius, temperature [PDF]
Weitter Duckss (Slavko Sedic)The goal of this article is to prove a universal principle of causal correlation between the rotation of a star with its temperature and radius. Instead of tables, links leading to them or towards an encyclopedia or other published articles are given here.