Multimedia courseware: Never mind the quality how much will it cost to develop?

This paper evaluates multimedia courseware costing techniques such as the US Airforce Interactive Courseware Method (Golas, 1993), CBT Analyst (Kearsley, 1985), CEAC (Schooley, 1988) and MEEM (Marshall, Samson, Dugard, & Scott, 1994) against the data from ten multimedia courseware developments. The Relative Error and Mean Absolute Relative Error (MARE) are calculated to allow comparison of the different methods

Adopting Billboard Advertising as a Strategy for Solid Waste Management in Nigeria

One of the environmental challenges facing developing countries like Nigeria is unhealthy disposal of solid waste.  Poor attitude towards waste management has been shown to be the major cause of solid waste problems in Nigerian cities. There are many ways to enlighten people on how to manage waste. Billboard advertising is one of many strategies. Billboard is one of the most effective out-door advertising that has the features to catch one eyes and attention because of the striking colours, magnificent images and giant sizes. This study examined billboard advertising as a strategy for enlightenment campaigns on solid waste management in the south-south geo-political zone in Nigeria. Two research instruments were used to collect data for the study. These were observation of billboards in state capitals in the south-south states of Nigeria, and the administration of 1,279 copies of questionnaire to respondents in these states. The study showed that billboards are effective enlightenment campaigns strategy for waste management but billboards advertising have not been adopted in these states as strategy for enlightenment campaigns on solid waste management. Poor enlightenment campaigns have been shown to be one of the causes of poor attitude to waste management. However, there is need for consistent enlightenment campaigns on solid waste management through billboards advertising. Keywords: Advertising, attitude, billboards, solid waste management, enlightenment campaign

RICE-HUSK ASH-CARBIDE-WASTE STABILIZATION OF RECLAIMED ASPHALT PAVEMENT

This paper present results of the laboratory evaluation of the characteristics of carbide waste and rice husk ash stabilized reclaimed asphalt pavement waste with a view to determine its suitability for use as flexible pavement material. The mixtures were subjected to British Standard heavy compactive effort to determine the compaction characteristics, California bearing ratio, durability and water absorption. Test results showed that the maximum dry density increased while optimum moisture content decreased with carbide waste content and lower rice husk ash contents at any fixed reclaimed asphalt pavement content in the mixes. Optimum California bearing ratio values of 62.0 % (unsoaked) and 66.0 % (soaked for 24 hours) were recorded for 75% RAP + 25% CW mix, with minimum water absorption of 5.7 % and resistance to loss in strength of 84.1 %, hence the recommendation of the mixture for use as sub-base material in flexible pavement construction.  http://dx.doi.org/10.4314/njt.v35i3.

Sahiwal Breed in Pastoral Production Systems in Kenya: Future Roles and Existing Gaps in Knowledge and Supportive Technical Logistics; \u3ci\u3eA Review\u3c/i\u3e

Sahiwal genetic resources is an integral part of the ASALs economy of Kenya. Sahiwal is the largest single dual purpose cattle breed kept by the pastoral communities in the ASALs where livestock products are the main drivers of food and nutrition security, and a source of income to support other household obligations. It was introduced in Kenya to upgrade the low performing small east African Zebu because of its superior productive and reproductive performance. The promising results of this upgrading programme led to the breed gaining preference over the local Zebu among the Maasai pastoralists. Despite the impressive results from this breed and subsequent high demand for milk and beef due to increase in population, supply of superior bulls and cows from the nucleus herd to the commercial herds remain low. It is likely that the problem will continue and perhaps in future the numbers of Sahiwal population may reduce unless appropriate measures are put in place. Pastoralists and other stakeholders such as policy makers need technical guidance to identify the most seemly approaches to ensure long term breed multiplication and conservation as well as optimal utilisation in ASALs. This study looks at the underlying challenges and opportunities that are there to exploit advantages of the breed. Gaps in knowledge and supportive logistics for low input production system for the breed are also discussed as well as implications of Sahiwal cattle and practices and technologies for pastoral-based systems

Unsupervised Segmentation of Action Segments in Egocentric Videos using Gaze

Unsupervised segmentation of action segments in egocentric videos is a desirable feature in tasks such as activity recognition and content-based video retrieval. Reducing the search space into a finite set of action segments facilitates a faster and less noisy matching. However, there exist a substantial gap in machine understanding of natural temporal cuts during a continuous human activity. This work reports on a novel gaze-based approach for segmenting action segments in videos captured using an egocentric camera. Gaze is used to locate the region-of-interest inside a frame. By tracking two simple motion-based parameters inside successive regions-of-interest, we discover a finite set of temporal cuts. We present several results using combinations (of the two parameters) on a dataset, i.e., BRISGAZE-ACTIONS. The dataset contains egocentric videos depicting several daily-living activities. The quality of the temporal cuts is further improved by implementing two entropy measures.Comment: To appear in 2017 IEEE International Conference On Signal and Image Processing Application

Perceived Relative Factors Influencing Nurses’ Practice of Health Promotion for Women in Calabar, Cross River State, Nigeria

Socio-cultural factors negate the health of women. Therefore, health promotion as a focus of nursing practice aimed at capitalizing on the inherent capacities of women to establish health priorities, goals and strategies to improve their health. A descriptive survey with the purpose of ascertaining the influence of culture, social and health policies on nurses’ practice of health promotion was undertaken. Three hypotheses were formulated to guide the study. A sample of one hundred and thirty six nurses participated in the study. A validated questionnaire with a test-retest reliability coefficient (r) of 0.79 was used for data collection. Correlation analysis was carried out to test hypotheses. The results revealed that 132 (97.1%) participants were female with a mean (SD) age of 40 ± 7.29. Many participants 58 (42.6%) perceived that social policies have high influence on their practice of health promotion. The results also showed significant negative correlation between culture and practice of health promotion (r = -0.532; p = 0.01) while the practice of health promotion was significantly and positively correlated with social policies (r = 0.515; p = 0.01). It was recommended that negative cultural practices be addressed through social policies and health education of women on negative cultural practices in order to enhance the practice of health promotion for them

Determinants of Job Satisfaction among Nurse / Midwife Educators in Calabar, Cross River State, Nigeria

Background: Job satisfaction represents an important element of Nurse Educators' survival which has implications for performance, retention, dedication to the institution, the nursing profession itself and preparing nursing students who are capable of providing high quality patient care. The purpose of the study was to assess overall level of job satisfaction and satisfaction with nine facets of job satisfaction among Nurse/Midwife Educators in Calabar, Cross River State, Nigeria.   Methods: A descriptive cross sectional survey was used for the study. A total population study of Nurse /Midwife Educators in Calabar was undertaken. A self-administered structured questionnaire adapted from the standardized “Employee Opinion Survey” with a reliability of 0.60 to 0.90 coefficient was used for data collection. Data were computer analyzed using Statistical Package for Social Sciences (SPSS) version 17.0 for Windows. Logistic regression was used to verify association between overall job satisfaction and facets/subscales of job satisfaction scale.   Results: A total of 50 respondents participated in the study. The mean age of the respondents was 46.9±6.9 while the mean years of working experience was 24.9±6.1.  The respondents were made up of (40) 90.0% female and (10) 10.0% male. The mean overall job satisfaction score was 2.63±0.62. The results also revealed that majority of the respondents 41(82.0%) were moderately satisfied with their work while 9(18.0%) were slightly satisfied. Most of the respondents 47(94.0%) were satisfied with the job itself subscale with a mean score of 3.27±0.59, while the least satisfying facet was communication subscale with a mean of 2.50 ± 0.90. Safety and working relationships were significantly related to overall job satisfaction.   Conclusion: The study has shown that the few but experienced Nurse/Midwife Educators in Calabar were not fully satisfied with most facets of their work which could have adverse effect on their work output and overall performance. Therefore in order to address the adverse effect of dissatisfaction, it is recommended that all sub-scales of job satisfaction be addressed by employers of Nurse Educators and the Professional Nursing Association with emphasis on safety and working relationships.   Keywords: Job satisfaction, Working relationships, Nurse /Midwife Educator, Nigeri

Chronic Oral Capsaicin Exposure During Development Leads to Adult Rats with Reduced Taste Bud Volumes

Introduction A cross-sensory interaction between gustatory and trigeminal nerves occurs in the anterior tongue. Surgical manipulations have demonstrated that the strength of this relationship varies across development. Capsaicin is a neurotoxin that affects fibers of the somatosensory lingual nerve surrounding taste buds, but not fibers of the gustatory chorda tympani nerve which synapse with taste receptor cells. Since capsaicin is commonly consumed by many species, including humans, the experimental use of this neurotoxin provides a naturalistic perturbation of the lingual trigeminal system. Neonatal or adult rats consumed oral capsaicin for 40 days, and we examined the cross-sensory effect on the morphology of taste buds across development. Methods Rats received moderate doses of oral capsaicin, with chronic treatments occurring either before or after taste system maturation. Tongue morphology was examined either 2 or 50 days after treatment cessation. Edema, which has been previously suggested as a cause of changes in capsaicin-related gustatory function, was also assessed. Results Reductions in taste bud volume occurred 50 days, but not 2 days post-treatment for rats treated as neonates. Adult rats at either time post-treatment were unaffected. Edema was not found to occur with the 5 ppm concentration of capsaicin we used. Conclusions Results further elucidate the cooperative relationship between these discrete sensory systems and highlight the developmentally mediated aspect of this interaction. Implications Chronic exposure to even moderate levels of noxious stimuli during development has the ability to impact the orosensory environment, and these changes may not be evident until long after exposure has ceased

Observation of vortex dipoles in an oblate Bose-Einstein condensate

We report experimental observations and numerical simulations of the formation, dynamics, and lifetimes of single and multiply charged quantized vortex dipoles in highly oblate dilute-gas Bose-Einstein condensates (BECs). We nucleate pairs of vortices of opposite charge (vortex dipoles) by forcing superfluid flow around a repulsive gaussian obstacle within the BEC. By controlling the flow velocity we determine the critical velocity for the nucleation of a single vortex dipole, with excellent agreement between experimental and numerical results. We present measurements of vortex dipole dynamics, finding that the vortex cores of opposite charge can exist for many seconds and that annihilation is inhibited in our highly oblate trap geometry. For sufficiently rapid flow velocities we find that clusters of like-charge vortices aggregate into long-lived dipolar flow structures.Comment: 4 pages, 4 figures, 1 EPAPS fil