Unique among African countries, the ancient Ethiopian monarchy maintained its freedom from colonial rule with the exception of a short-lived Italian occupation from 1936-41. In 1974, a military junta, the Derg, deposed Emperor Haile SELASSIE (who had ruled since 1930) and established a socialist state. Torn by bloody coups, uprisings, wide-scale drought, and massive refugee problems, the regime was finally toppled in 1991 by a coalition of rebel forces, the Ethiopian People's Revolutionary...
Chromatography is a non-destructive procedure for resolving a multi-component mixture of trace, minor or major constituent into its individual fraction. Chromatography is essentially a group of technique for the separating a mixture of component through equilibrium distribution between two phases, one of which is moving the other. The main principle of separation may be partition or adsorption. The chromatography studies used for the separation and identification of their component. Thin layer...
Algae (or Microalgae; microscopic algae) are probably the simplest and most abundant form of plant life. Algae are responsible for more than half of the world's primary production of oxygen. It absorbs CO2 by photosynthetic process and release oxygen to the air. Microalgae need only 5-20% of full sunlight to grow and it is estimated that algae can capture more than 65 Gt of carbon per year which is equal to the output of about 65,000,500 MW generating plants (Rasmussen, 2008). Many scientists...
Management of Health and Safety at Work Regulations, 1999- Control of Substances Hazardous to Health Regulations, 2002 Regulation, places a legal duty on employers to reduce the risk to employees "so far as is reasonably practicable" from exposure to chemicals. It also places a duty of care to others who may be affected by any work activities-goods and services provided. A risk assessment if carried out correctly will identify many control...
INTRODUCTION The dilapidated failure of the twin towers of the world trade center in USA due to the terrorist attack on September 11, 2001, have put immense pressure on designers of future high rise buildings to explicitly ensure specified levels of safety against progressive collapse: impact, blast, fire, etc. The particular system where progressive collapse is triggered by the floor system, disengaging from its support over all part of the building, as appeared to be the case for the world...
The current global production of E-waste is estimated to be 20-25 million tons per year, with most E-waste being produced in Europe, the United States and Australasia. China, Eastern Europe and Latin America will become major E-waste producers in the next ten years (Robinson, 2009). Attempts to address and deal with the e-waste management problems are taken in different countries of the world: these attempts however are taken not on global or country level only but also on local. Student...
Malaysia is moving forward to be an industrialized economy. Malaysia moved from material production to manufacturing. The Malaysia manufacturing sector contributed 32% of the gross domestic product (GDP) in 2007, exports of manufactured products account for 75% of Malaysia's total export in 2007. The manufacturing industries have become the economy's main source of growth in recent years. According to the Third Industrial Masterplan (IMP3) 2006 - 2020, twelve industries in the manufacturing...
A constant change in earths climate and an average increase in global temperature has started to show its effects in the form of increased incidences of heat events, evidences of increased persistence of ozone and particulate matters in the environment and increased incidences of vector borne zoonotic diseases. The global change of climate is projected to increase if the current trends of human activities remain constant such as emission of greenhouse gases, and because of these changes it is...
Kathmandu valley is facing scarcity of drinking water even during the rainy season.Ground water is recharged naturally by rain ,melting of snow and to some extent from sources likes rivers and lakes.Water from such sources moves beneath the ground and recharges the ground water by which its level is maintained. Ground water is stored in shallow and deep aquifer.The water level upto 100m in depth is generally characterized as shallow aquifer which is easy to recharge as water from surface...
On matters of global concern; multi-lateral trade, non-proliferation, climate change, etc., India is often portrayed as stubborn or uncompromising in the international arena (Crossette, 2010) & (Malone, 2009). Be it as a consequence of its current economic prowess, nuclear proliferation or its potential as a democratic counterweight to rising Chinese hegemony, India's profile has risen to great heights on the world stage over the past two decades. With gross domestic product (GDP) second...