The role of industry technologies in is education: a South African case study

The issue of determining the most appropriate software tools for instructional purposes is not new. As the tools keep changing and evolving and considering the vast number of existing tools that are there, this process of selecting the best tools for students may become quite challenging and it is important that the dynamic be explored. This research targets studying factors that have impact on tool selection, implementation of tools in the curriculum, and impact of tool use on students. The study also uses Activity Theory as the theoretical framework in holistically exploring how these tools are implemented in an undergraduate Information Systems curriculum. The research adopts an interpretivist approach and follows an exploratory research design using qualitative methods to gather data and thematic analysis for data analysis. This case study is of a South African university, which was chosen using convenience sampling. Data was collected through interviews with 10 lecturers and 8 students at the Information Systems Department and analysis of course outlines. Key findings point to alignment with industry needs, affordability, availability of supplementary resources, and software functionality as some of the important criteria used by educators when selecting software products. The study also identifies primary and secondary contradictions as per the Activity Theory and these highlight the inconsistencies which exist in the department's use of technologies. It is important to note the lack of studies in this area, where existing research mainly focuses on tools used in specific courses in Information Systems, but none have looked at the Information Systems discipline as a whole. The study also highlights the different roles played by technology companies in facilitating the use of tools in courses, which to the researcher's knowledge, has never been done before. Thus, the research contributes to literature and fills the stated gaps in research and answers the research questions

Role Of Industry Technologies in Information Systems Education

Determining the appropriate industry technology or software products1 to use for practical teaching or demonstration purposes is a well-known challenge in technology-related education. As industry technologies continue to evolve and considering the vast number of existing proprietary as well as extant open source technologies, the task of selecting the best one for a particular competence, lesson, or course is also becoming more complicated. This research explores the selection and implementation of industry technologies in an Information Systems educational context. Data was collected through interviews with lecturers and students as well as analysis of course documents in an Information Systems Department at a South African university. The findings point to alignment with industry needs, affordability, availability of supplementary resources, and software functionality as some of the important criteria used by educators when selecting software products

Effect of cutting position and vine pruning level on yield of Sweet Potato (Ipomoea Batatas L.)

There is significant variation in yield of storage roots and vines of sweet potato (Ipomoea batatas) among farmers due to use of different cutting positions and pruning of vines at different levels. This study was carried out to establish the cutting position and the vine pruning level that give the best yield of both the storage roots and vines. The study was conducted in a 3x3 factorial arrangement in Randomized Complete Block Design (RCBD) with three replications. Treatments included cutting position at three levels (apical cutting, middle cutting and basal cutting) and pruning at three levels, 0%, 25% and 50% respectively. Pruning was done. 50 days after planting. And storage root harvesting was done 100 days after planting. The two measurements were summed up to give the total vine weight. Storage root length, diameter and weight were measured at 100 DAP. Storage root length indicated significant difference (P<0.05) only among cutting positions with highest mean length (16.20 cm) obtained from apical cutting and the lowest (11.98 cm) from basal cutting. Storage root diameter, storage root weight and vine weight indicated significant interaction (P<0.05) of cutting position and vine pruning level. Highest mean root diameter and root weight were obtained from middle cutting and 25% vine pruning level, with the lowest being obtained from basal cutting and 50% vine pruning level. Highest vine weight was recorded from middle cutting and 50% vine pruning level, with the lowest being recorded from basal cutting and 0% vine pruning level. Both middle and apical stem cuttings can be recommended for higher storage root and vine yield. Vine pruning at 25% can be adopted for higher storage root yield while pruning at 50% can be suggested for higher vine yield

CASSAVA FORTIFICATION AND QUALITY EVALUATION

The broad objective of this work is to improve the nutrient content of cassava flour by inclusion of cowpeas seed flour and cassava leaf powder to assess the effects of the cowpeas flour and cassava leaf powder inclusion on the nutrient quality and acceptability of the flour. Cassava tuber flour was fortified with cowpeas flour and from cassava leaves at 20% and 30% of dry weight. Standard methods were used for the determination of parameter such as protein and carbohydrates. All samples were analysed for potassium, phosphorus, calcium, magnesium, iron, and cyanide. Unfortified cassava had significantly lower (P<0.05) values (protein: 0.942%, P: 0.093%, K: 0.749 Mg: 0.052%, Fe: 5.008ppm) than fortification with both cowpeas flour and cassava leaf flour. Fortification with cowpeas flour did not significantly (P>0.05) change the Ca content however they were significant (P<0.05) increases cassava leaf flour. Cyanide content increased significantly for Treatment LF20 and LF30 but remained unchanged for Treatment CW20 and CW30. Both cowpeas and cassava leaves had significantly (P<0.05) lower carbohydrate content than cassava tuber flour. Both cowpeas and cassava leaves are excellent for fortification but cassava leaves have to be used with additional pre-treatments to reduce the cyanide content in them. Organoleptic qualities analysed indicate high acceptability of fortification of cassava tuber flour with cowpeas flour

A comparative study of the schizontocidal efficacy and safety of artemether versus chloroquine in uncomplicated malaria

A comparative study of medications being used for malaria treatment in Zimbabwe

Different nursery growing systems and growth media improved germination and seedling growth of fever tea (Lippia javanica)

An experiment was set up in a Completely Randomized Design (CRD) to examine the influence of nursery growing methods and growth medium on fever, tea germination, and seedling development. Two nursery growth methods (Conventional-CON and Float tray system FTs) and six different growing medium (pine bark, peat moss, coco peat, vermiculite, sand, and cattle manure) were used. ANOVA was used to compare treatment means, and means were separated using the Least Significant Difference (LSD) at a 5 % significance level. The nursery growing method and growth material exhibited a strong interaction regarding the germination index, germination percentage, seedling height, leaf area, root length, density, and final crop stand. The float tray approach yielded the greatest germination index for peat moss and the lowest for cattle manure. In the float tray method, peat moss and coco peat had the highest germination percentages, whereas cattle manure had the lowest. Under the float tray technique, the tallest seedlings emerged in peat moss and the smallest in coco peat. Peat moss had the most leaf area in the float tray system, whereas coco peat had the least in the conventional technique. Peat moss in the float tray system had the highest root length density while coco peat in the conventional technique had the lowest. Peat moss in the float tray system had the highest final crop stand, whereas seedlings in the conventional and float tray systems had nothing. based on the findings, it is recommended that fever tea seedlings be grown on peat moss using the float tray metho

Hydropriming improves seed germination in horned melon (Cucumis metuliferus E. Mey. Ex Naudin) landraces

The global popularity of horned melon highlights the need of sound crop establishment processes, since uniform and quick seed germination has a substantial influence on crop yield and quality. Using a Completely Randomised Design (CRD) with a factorial structure, the effects of hydro priming durations (0, 8, 16, 24, 32, and 40 h) on seeds of two horned melon landrace (L1&L2) were investigated. Hydro priming had significant (P>0.05) influence on several germination indices (germination percentage, relativized percentage, mean germination rate, germination index, synchronization, duration to 50 % germination, mean daily germination, peak value, and germination value). Among the germination indicators tested, landrace (L2) exhibited a considerably stronger germination response than L1. The findings also reveal a curvilinear relationship between priming length and germination percentage, with 24 hours being greatest proportionately. The mean germination rate, germination index, mean daily germination, peak value of germination, and germination value all rose as the hydro priming duration increased. Primed seeds germinated more quickly than unprimed ones. With increasing priming duration, the synchronization index fell linearly. The interaction between landraces and hydro priming was not significant (P>0.05) for final seed germinated, relativized germination, and synchronization indices, but it had a significant impact on all other indices. Because the efficacy of hydro priming tends to lessen with extended soaking, we recommend using it for a maximum of 32 hours. Future study should concentrate on alternative priming chemicals and the applicability of various priming solutions for various agroecosystem

Postharvest losses to agricultural product traders in Mutare, Zimbabwe

The study examined the nature and causes of postharvest losses incurred by formal and informal traders in Mutare urban. A survey was conducted where questionnaires were administered to various respondents in the formal and informal sector of fruits and vegetables. The research study assessed the profitability of trading in fruits and vegetables to formal and informal traders. It also assessed traders’ perception of the losses of fruits and vegetables and further determined the possible ways of reducing these postharvest losses so as to enhance profitability in the sector. The study from a sample of 34 respondents revealed that both formal and informal traders experience losses during storage and transportation of goods. Losses incurred during storage were due to the unavailability of proper storage facilities specifically to informal traders. Furthermore, postharvest losses were also resulting from excessive exposure of crops to sunlight, poor packaging, poor carrying containers, attacks by insect pests as well as microbial or disease attacks. Postharvest losses affect profitability and growth of the fruits and vegetables sectors. There is need for farmers to improve on the quality of their produce and harvesting practices as emphasized by traders as they suffered losses as a result of poor quality goods supplied. Further postharvest practices should be improved by traders with special emphasis on adequate storage, handling and proper transportation of goods