Case studies in science workshop

Print Version Case studies are stories that are used as a teaching tool to show the application of a theory or concept to real situations. Dependent on the goal they are meant to fulfill, cases can be fact-driven and deductive where there is a correct answer, or they can be context driven where multiple solutions are possible. Various disciplines have employed case studies, including humanities, social sciences, sciences, engineering, law, business, and medicine.

Case studies in science workshop

Transport and Commodity General, Accra Under the MTADP, agricultural growth is expected to have a significant impact on poverty alleviation and food security by increasing the level of incomes of smallholders through higher productivity and employment as well as lowering food costs through improvements in marketing efficiency.

The strategy for agricultural development includes, among others, expansion in demand by accessing export markets and diversifying exports, which could lead to both expansion and import substitution.

The strategy for the crop sector is to increase production through productivity increases and area expansion. The development Case studies in science workshop the cassava trade is therefore in line with this medium-term goal. Apart from the foreign exchange earnings, cassava chip processing has provided additional employment opportunities, especially during the off-farming season, for farmers in the buying areas.

It is estimated that the processing of one tonne of chips generates 20 person days of labour Ms Atenka, Processing Equipment Manufacturer, Accra, pers. The reform in extension services is to improve efficiency in delivery and relevance of extension services. A major thrust to improve infrastructure supporting agriculture has also been launched under the ASIP.

Under the project, the following investments have been made since The VIP would support the effort of the Government to reduce poverty and increase the quality of life of the rural poor through increased transfer of technical and financial resources to develop basic and sustainable village-level infrastructure.

The components of the project include rural transport infrastructure which would inter alia support improvement of existing feeder roads and the development of arterial village trials and tracks linking farms to villages for the improvement of transport of agricultural produce including cassava.

It would also support the development of on-farm and village level drying facilities to reduce post-harvest losses, on-farm storage and appropriate facilities for processing of crops such as cassava.

This account of policy changes and interventions shows that until the late s there was little, if any, policy intervention in support of the cassava subsector. Whatever attention the crop received was through individual research and private entrepreneurs.

The factors causing this spread are related to the adaptability of the crop and its integration into the food and farming systems Appendix 3. Although the food security role of cassava is widely attributed to its availability during times of food shortages, the crop has increasingly become an important source of cash income.

It should also be noted that since cassava can be processed for sale, households harvesting but not selling fresh roots may be processing the harvests and not necessarily consuming it. The main reasons for expansion of cassava are population growth, famines or seasonal hunger and market availability.

The COSCA data also show that cassava production is increasing almost everywhere in Ghana and the factors causing this spread in different areas are demographic pressure, good market demand, commercialization of agriculture and improved cassava processing technology.

The cassava subsector has enjoyed significant yield increases since the late s. The high yields of the s are still below the potential yields of most cassava varieties.

Case studies in science workshop

The determinants of cassava yields at the farm level are presented in Appendix 4. It is important to note that apart from the climate and agronomic factors plant density and plant age at harvestsocioeconomic factors such as population density, sales level and use of hired labour in farming, affect the yields of cassava.

The negative relationship between population density and cassava root yield is also an important result considering the fact that growing population density is also one of the reasons for the spread of cassava. Even in the early s when the Government started to address the agricultural sector more seriously, policy still favoured the cereals - maize and rice, the old time favourites, in the form of guaranteed minimum prices, subsides on fertilizers and agro-chemicals.

The agricultural development policies filtered down through root crops to cassava. As the MAD funding was inadequate to cover all root crop activities, attention was given to cassava improvement and biological control of cassava pest.

These varieties, namely; Afisiafi, Gblemo Duade and Abasa Fitaa yield in excess of percent of local varieties; the two 2 non-poundable varieties have high adoption in areas where cassava is processed before cooking. In the fufu-eating areas, the one 1 poundable variety is being adopted but at a slow rate, due to availability of farmers' varieties; adoption rate would be high if high yielding and poundable varieties are released.

These clones are being multiplied throughout Ghana.


Local germplasm accessions are being collected for characterization, evaluation and maintenance. A programme has been put into place for evaluating and selecting on a continuing basis, superior introduced IITA clones to replace lower yielding varieties that might succumb to new pests and diseases.

Several clones are currently being evaluated under this programme. Packages of technology for producing cassava have been tested.

These include, intercropping, fertilization, harvesting age and plant population studies.Learn how to rebalance your body so you can work more efficiently in this workshop with Daniel Vladeta.

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In a case discussion, workshop participants become the decision makers as they read through the case, understand the situation, and identify with and analyze the problem — examining the causes and considering alternative courses of action to inform new approaches, ideas and strategies.

There is/was a problem with your internet connection. Please note that some features may not function properly. Please refresh your browser if your internet. Electrical Engineering and Computer Science (EECS) spans a spectrum of topics from (i) materials, devices, circuits, and processors through (ii) control, signal processing, and systems analysis to (iii) software, computation, computer systems, and networking.

Case studies are stories that are used as a teaching tool to show the application of a theory or concept to real situations. Dependent on the goal they are meant to fulfill, cases can be fact-driven and deductive where there is a correct answer, or they can be context driven where multiple solutions are possible.

Data Mining Case Studies