Effect of Sowing Dates, Intra-Row Spacings and Nitrogen Fertilizers of the Productivity of Red Variant Roselle (Hibiscus sabdarifa L)

Field experiments were conducted during the rainy seasons (June - Odober) of 1999 and 2000, at the research farm of Abubakar Tafawa Balewa University, Bauchi, Nigeria to study the effects of some agronomic practices on the growth and yield of roselle. Three agronomic practices (sowing dates, intra-row spacing and nitrogenous fertilizer levels) at three levels each, were factorially combined to give a total of 27 treatment combinations. These were laid out in a randomized complete block design with three replications. Most of the results obtained were highly significant (P50.01). Sowing dates (June) gave the highest mean calyx (2035.15 kg/ha) and seed (2391.19 kg/ha) yields in both years. Intra-row spacing (80 em) gave the highest mean calyx (1651.11 kg/ha) and seed (2024.40 kg/ha) yields. Also, application of 60 kg N/ha gave the highest mean calyx (1671.99 kg/ha) and seed (2067.36 kg/ha) yields. It is evident from the results of this experiment that, the earlier the sowing of dates, the wider the intra-row spacing and the higher the nitrogenous fertilizer level, the higher the productivity of red variant roselle. Sequel to these facts, roselle sown in June at intra-row spacing of 80 em should be applied with 60 kg N / ha for optimum productivity in the study area

2013 EPRG Public Opinion Survey: Smart Energy Survey – Attitudes and Behaviours

We present results of the 2013 Energy Policy Research Group (EPRG) public opinion survey on smart metering and consumption behaviour. Our survey examines the energy consumption awareness and attitudes of the British public, the effect of peers on consumption behaviour, the potential for consumer engagement and consumer acceptance of various energy saving measures. wherever possible, comparisons were made to EPRG public opinion surveys from 2006, 2008 and 2010. The share of individuals that would not want their consumption data recorded at all has gone down from 2010 levels from 30% to 22% although numerous concerns remain. Smart devices do lead to behavioural response but the challenge is the sustainability of this behaviour change over time. The share of electricity monitor householders that read the monitor at least once in a week is 26%, compared to less than 5% of non-monitor households that reported checking their meters at least once a week. However, the reading habit declines over time. Peer influence is not found to have strong impacts on behaviour change. Affordable and user friendly applications on smart phones that inform people of their consumption are seen as promising tools to raise awareness and induce behaviour chan9e. There is scope for shifting load off-peak through smart technologies that minimise impact on availability and functionality, and guarantee consumer privacy

Total Reconstruction of the Upper Lip Using Bilateral Nasolabial Flaps, Submental Flap, and Mucosa Graft following Complete Resection for Squamous Cell Carcinoma

Lip reconstruction following resection for tumour or following extensive trauma may pose a challenge. This is more so when the resection is total and a complete lip has to be constructed. We present a case of lip reconstruction following a total resection of the upper lip. The procedure used in this case was a combination of bilateral nasolabial flaps with a submental flap and buccal mucosal graft lining. We believe that this provides an alternative method of total upper lip reconstruction with minimal disruption of the facial aesthesis

The Economic Costs of Unsupplied Electricty: Evidence from Generation among African Firms

Public electricity provision in Africa has been marred by under investment and frequent power outages.One of the strategies often adopted by firms to cope with this poor public supply is investment in backup generation. This strategy is not without cost however. Extant literatures on outage cost estimation have shown that firms possessing certain characteristics have a higher tendency to invest in backup generation. What is less known, however, is whether those firms suffer lesser or higher unmitigated outage losses (costs). Using cross-sectional data from 6854 firms currently operating in 12 African countries, this study investigated the extent to which firms' characteristics might create incentives for auto-generation and whether these incentives lead to lesser unmitigated outage costs.We used three different methods including marginal cost, incomplete backup and subjective evaluation techniques. The results reveal that large firms, firms engaging in exports, and those using the Internet for their operationstill suffer higher unmitigated outage costs despite having a higher propensity of investing in backup generation. The results further reveal that unmitigated costs still account for the larger proportion of the total outage costs despite high prevalence of backup ownership among the firms. This reflects the inefficiency in backup generation due to small backup capacity held by firms. Our estimates also indicate that ignoring firms'characteristics such as size and the nature of operation (e.g. export promotion, internet usage, etc.) may result in underestimation of outage losses. The analysis further suggests that firms can still benefit significantly even when the current subsidised tariffs are replaced by cost-reflective rates that ensure stable electricity supply. The net outage cost (having adjusted for a cost-reflective tariff) incurred by firms are large enough to expand their scope of operation and hire more workers, suggesting the macroeconomic effect could be significant

The prospects for smart energy prices: observations from 50 years of residential pricing for fixed line telecoms and electricity

This study focuses on how energy and communications have evolved over the last 50 years and what we can learn from history in order to examine the prospects for smart energy pricing by 2050. We begin by discussing the nature of energy and telecoms products and why price discrimination should be expected. We then review various business and pricing strategies that have evolved in the two industries. We find that business models for both the telecoms and energy sectors have changed from the traditional services business model (i.e., offering of calls and messages for telecoms, and utility supply services for energy) to more dynamic, integrated and complex business models. These new business models include the managed services provider model, the bundled services model, and the prosumer business model, among others. Similarly, several changes in pricing structure have evolved. There has been a reduction in the number of distanced-based and increasing time-based price differentiation in fixed line telecoms and the abolition of residential floor area-based differentiation in residential electricity pricing. We conclude with a discussion on how the rollout of the next generation of electricity meters (smart and advanced meters) may further shape electricity pricing in the future

Total Reconstruction of the Upper Lip Using Bilateral Nasolabial Flaps, Submental Flap, and Mucosa Graft following Complete Resection for Squamous Cell Carcinoma

Lip reconstruction following resection for tumour or following extensive trauma may pose a challenge. This is more so when the resection is total and a complete lip has to be constructed. We present a case of lip reconstruction following a total resection of the upper lip. The procedure used in this case was a combination of bilateral nasolabial flaps with a submental flap and buccal mucosal graft lining. We believe that this provides an alternative method of total upper lip reconstruction with minimal disruption of the facial aesthesis

Analysis of Effects of Breed, Sex and Age on some Serum Biochemical Parameters in Rabbits

(Tropical Journal of Animal Science: 2003, 6(2): 85-90