In Ethiopia, feed industries are widely using limestone as a cheap source of Ca without adequate information on the bioavailability of its Ca content and the presence of other toxic minerals. This being the case, the present study was conducted to determine the Lead and Cadmium content of samples of limestone, Gypsum and marble powder collected from different parts of Ethiopia. Adequate quantities of lime stone, marble powder and gypsum were procured from different parts of Ethiopia and subjected to laboratory chemical analysis in triplicate. The results of this study clearly showed that the total ash content of all the materials analyzed in this study ranged between 81 and 99%, indicating the potential use of these materials (limestone, marble powder and gypsum) collected from different part of Ethiopia as supplementary mineral feed source in very small amounts. In present work the Pb content (ppm) in Calcium-carbonate and Calcite powder previous work was(123.1± 0.06) and (65.84 ±10.87) respectively while Pb content in the present tested materials(limestone/Calcium-carbonate, marble powder, gypsum) was 24.6, 26.5 and 45.83 respectively. The two samples limestone and marble powder showed almost equal content of Pb while gypsum containing almost double of the two samples.

In Ethiopia, feed industries are widely using limestone as a cheap source of Ca without adequate information on the bioavailability of its Ca content and the presence of useful minerals and toxic minerals as well. This being the case, the present study was conducted to determine the Zinc and Cobalt content of samples of limestone, Gypsum and marble powder collected from different parts of Ethiopia. Adequate quantities of lime stone, marble powder and gypsum were procured from different parts of Ethiopia and subjected to laboratory chemical analysis in triplicate. The results of this study clearly showed that the total ash content of all the materials analyzed in this study ranged between 81 and 99%, indicating the potential use of these materials (limestone, marble powder and gypsum) collected from different part of Ethiopia as supplementary mineral feed source in very small amounts. In present work the Zn content of the lime stone ranged (ppm) 18.4--50.8(with an average of 28.8),In marble powder ranged 16.3— 58.88 (with an average of 37.59) and in that of Gypsum from Mugger cement was containing (an average of 10.87 the value of which was almost similar with the Zn content of Calcium-carbonate and calcite powder(21.33 ±1.20) and(37.50± 2.39%) respectively, showing that Zn content in gypsum of the present study is a beat lower than the content of limestone, marble powder and Calcite powder.

A phenomenon emanating from surface and ground water before dawn was investigated in Italy and Canada. During this phenomenon, rooms adjacent to water sources were filled with pulsed clouds of green particles which were identified as ground energy by persons sensitive to qi phenomena. Individual pulses lasted approximately 30 minutes and were repeated several times nightly. Their relative timing appeared to be part of a 24-hr cycle of sky and ground energies which was consistent between nights, and particularly strong in spring and early summer. We hypothesize that sky energy impacts Earth as radiation from the centre of the Milky Way, and is either converted into ground energy, or displaces ground energy from subsurface geoflora above the surface of the ground. One strong nightly pulse of tinnitus was provisionally identified with a cosmic source, due to its occurrence 4 minutes earlier on successive nights.

One of the major challenges with the use of solar thermal energy is the intermittent nature. As such, present day research is geared towards energy storage systems in which thermal energy is stored during the day for later use. However, in many engineering applications there is a continuous steady demand for energy. Hence, this study is focused on the optimization of a packed bed energy storage system to provide an uninterrupted continuous supply of energy in the absence of or availability of solar energy. A mathematical model was developed from consideration of the basic phenomena of heat transfer to predict the thermal behavior of a simultaneous charging, storage and discharging system during a heating cycle. Optimization of the entire storage system were carried out and it was discovered that the ratio of optimum volume to area at airflow rate of 0.0094, 0.012, 0.014, 0.017, 0.019, 0.021, 0.024, 0.026, 0.028, 0.031, 0.033, 0.035, 0.038, 0.040, 0.042 and 0.045m3/s were 0.123, 0.154, 0.185, 0.215, 0.247, 0.276, 0.308, 0.338, 0.369, 0.4, 0.43, 0.462, 0.491, 0.523, 0.554, and 0.584, respectively.

In the framework of the project “Water Resource for Economic Growth and Sustainable Development: Theories and African and Middle East Experiences” funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant member II3.2- 2013.37, the principle investigator and key research members have carried out studying, calculating and analyzing the water supply and demand to define potential, real status of water exploitation and usage for economic development in Vietnam. The study has been pointed out that due to abundant water resource, Vietnam has huge advantages for economic development, especially for agriculture and tourism, but wrong awareness of infinite water resource availability has caused a lot of great losses for economic development.

It is shown that various natural phenomena, such as tsunamis, sound of church bells, resonance, etc., prove physical reality of imaginary numbers by the very fact of their existence and thereby refute the standard interpretation of the second STR postulate. Therefore, it is concluded that a common version of the special theory of relativity requires adjustment. The article represents analysis of possible structures of the hidden Multiverse corresponding to the adjusted version of the special theory of relativity, which explain the phenomena of dark matter and dark energy. It is shown that according to the data obtained by the WMAP and Planck spacecrafts, quaternion structure of the hidden Multiverse is the most probable.

This paper deals with the origin of money through its function as a medium of exchange. Barter can give rise to money through necessitating the use of a standard of value even before calling for the use of a medium of exchange. In a given society at any point in time money is defined in principle simply as the subset of total financial assets and commodities which are actually performing monetary functions. Three main functions are usually suggested. Money is thought to be that which serves as a medium of exchange, standard of value and store of value. Defining money in a particular context would simply involve a judgment as to which items currently possess these properties to a greater or lesser extent. The paper also ascertains whether money originated through its function as a medium of exchange, can explain the dynamics of monetary exchange of most recent days. The paper also ascertains if technological changes can improve the efficiency of the trading process.

Gingivitis is nothing but the inflammation of gingival soft tissue. Various forms of gingivitis have been described in various literatures. Although the clinical signs of gingivitis are easy to detect, it is not clear how much inflammation a person must have to be considered a gingivitis case. The prevalence and incidence of gingival diseases in individuals of different ages and socio-economic strata gives us a clear view of the association and distribution of etiological factors causing gingival and periodontal diseases. Current article summarizes the present World and Indian scenario of gingival diseases that will definitely help the dental professionals in their future diagnosis and treatment plan of periodontally compromised patients.

Adsorption of Ni(II) ions from aqueous solution using natural Syrian zeolite has been studied. Batch shaking adsorption experiments were performed in order to determined the effects of contact time, pH and initial concentration on removal process. The experimental equilibrium data were tested for the Langmuir and Freundlish isotherms. It was determined that removal of Ni(II) ions was well fitted by pseudo-first order kinetic model. The adsorption involves a film diffusion, an intra-particle diffusion and a chemical ion-exchange between Na+ ions of adsorbent and the Ni2+ ions. The adsorption is endothermic and spontaneous process under studied conditions.

The present study was intended to calculate the water quality index (WQI) of Bassi Tehsil of district Jaipur, Rajasthan, India in order to assess its suitability for drinking purpose. For this ground water samples from 71 sampling sites of 50 villages of study area were collected from tube wells and hand pumps of varying depths in pre and post monsoon seasons and analyzed for ten physico-chemical parameters namely pH, Total Alkalinity, Total Hardness, Calcium, Magnesium, Chloride, Nitrate, Fluoride, Total Dissolved Solid and Electrical Conductivity. Analysis of results showed that almost all parameters were exceeding the permissible limits prescribed by BIS, ICMR and WHO. Assessment of water quality index (WQI) showed remarkable variation of water quality as WQI values ranged from 13.53 to 1052.2 in premonsoon and 25.72 to 1024.6 in post monsoon season. The study also revealed that drinking water of Bassi tehsil is not potable and there is an instant need to take ameliorative steps in this region to prevent the population from adverse health effects as 61.97% and 63.38% ground water samples were classified under “unsuitable for drinking” category in accordance with their WQI values in pre and post monsoon seasons, respectively.