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Agricultural education and training (AET) institutions will play a strategic role in helping to prepare Africa’s rapidly growing youth populations for productive careers in agriculture and related agri-businesses. The purpose of this paper is to examine the magnitude of skills and youth employment needs emanating from high-population growth rates. It then explores how agricultural education institutions are responding to these challenges in four different countries at different levels of food system development: South Africa tier 1, Tanzania in tier 2 and Malawi and Uganda in tier 3.

Demographic and school enrollment data provide information on the magnitude of job market entrants at different levels of education while Living Standards Measurement Studies in the respective countries provide a snapshot of current skill requirements in different segments of the agri-food system. In order to evaluate AET responses, the authors have conducted country-level reviews of AET systems as well as in-depth assessments at key tertiary AET institutions in each of the four case study countries.

Growth rates in primary school enrollments are high in sub-Saharan Africa. At the same time, because of budgetary constraints, transition rates decline rapidly – about 40 percent from primary to secondary and 7 percent from secondary to tertiary. As a result, substantial numbers of primary and secondary school graduates seek jobs.

The case study countries are limited to four. Had more financial resources and time been available, researchers could have spread further afield and in so doing increasing the precision of the results.

Estimation of the number of primary and secondary school leavers seeking employment because of failure to proceed to the next level of education. Estimation of the level of education shares in the various components of the agri-food system.

Secondary customers often experience secondary vulnerabilities that manifest in family-centred transformative services as other- and self-related customer needs. Yet, a relational perspective on primary and secondary customers’ needs is lacking. The study analyses secondary customers’ needs and their relationship to primary customers’ needs to enhance well-being in customer entities. The service inclusion lens is used to understand customers’ experiences of vulnerability.

The study uses an exploratory approach. The data consists of ethnographic observations and interviews of elderly residents (primary customers), their family members (secondary customers) and nurses in two nursing homes.

Primary and secondary customers’ needs are interrelated (or unrelated) in four ways: they are separate, congruent, intertwined or discrepant. The vulnerability experiences fluctuate in intensity and over time, individually reflecting on these need dimensions.

The study contributes to service research concerning customers’ experiences of vulnerability, secondary customers and their inclusion in services. Primary customers’ service inclusion may increase/decrease secondary customers’ service inclusion and their experience of vulnerability. Moreover, secondary customers’ inclusion is often necessary to foster primary customers’ inclusion and well-being.

Fostering service inclusion and well-being for primary and secondary customers requires balanced inclusion and acknowledging the needs of both groups. Service providers may need to act as moderators within customer entities if discrepant needs occur.

The study addresses the under-researched areas of family members’ customer needs, their relation to primary customers’ needs, experiences of secondary vulnerability and context-related vulnerability.

Management response to consumer comments has become a widely adopted marketing strategy to address the undesirable effects caused by negative remarks. Yet, when and what management response is more effective and under what circumstances remains under-researched. This study aims to fill this gap.

In three experiments using five different products, the authors manipulate psychological construal level (psychological distance: distant vs proximal) and management response (response of primary vs secondary features) and thereafter assess their bearings on consumer psychological and behavioral reaction toward products of two distinctive natures (hedonic vs utilitarian).

At a psychological distance, consumers show a preferable reaction to management response of primary over secondary features. In contrast, when the psychological distance is proximal, consumers react more positively to management response of secondary than primary features. In addition, these effects vary as a function of product nature, hedonic vs utilitarian.

The findings of this research bring a significant contribution to marketing communication literature and extend the construal level theory.

A better understanding of the relative effectiveness of distinct types of management response to negative consumer comments is essential for more targeted and effective marketing strategies.

Little research has documented the effects of distinct types of management response. How psychological distance might underpin these effects has not been explored. In addition, whether the interaction effect of management response and psychological distance varies with differences in product nature, namely, hedonic and utilitarian, remains unanswered until this research.

In comparison to a nozzle with a larger/finite separation distance (Thanigaiarasu et al., 2019), a thin-lip nozzle (Srinivasarao et al., 2017) minimizes drag. Coaxial nozzles with thin lips are an appropriate tool for studying high subsonic jets because it does not create a dominant re-circulation zone. This study aims to analyze the characteristic of separation distances, between primary and secondary nozzles, within the range of 0.7–3.2 mm which can be considered a thin lip.

A separation distance of 0.7  (Papamoschou, 2004), 1.7  and 2.65 mm (Lovaraju and Rathakrishnan, 2011) is considered for the present study. The main nozzle exit Mach number is maintained at a subsonic condition of Mach 0.6, and the co-flowing nozzle exit Mach number is varied from 0% (secondary jet stopped/single jet) to 100% (Mach 0.6) in steps of 20% with respect to the main nozzle exit Mach number. A comparison was made between these velocity ratios for all three lip thicknesses in the present study. Design mesh and analysis were done by using Gambit 2.6.4 and Fluent 6.12. Velocity contours and turbulence contours were studied for qualitative analysis.

When lip thickness increases from 0.7 to 2.65 mm, the potential core length (PCL) of the primary jet decreases marginally. Additionally, the PCL of the primary jet elongates significantly as the velocity ratio increases. The primary shear layer is dominant at 20% co-flow (20 PCF), less dominant at 60% co-flow (60 PCF) and almost disappeared at 100% co-flow (100 PCF). Concurrently, the secondary shear layer almost disappeared in 20 PCF, dominant in 60 PCF and more dominant in 100 PCF. Different zones such as initial merging, intermediate and fully merged zones are quantitatively and qualitatively analyzed.

Co-flow nozzle is used in turbofan engine exhaust. The scaled-down model of a turbofan engine has been analyzed. Core length is directly proportional to the jet noise. The PCL signifies the jet noise reduction in a high-speed jet. For a low-velocity ratio, the potential core is reduced and hence can reduce the jet noise. At the same time, as the velocity ratio increases, the mass flow rate of the coaxial increases. The increase in the mass flow increases the thrust of the engine. The aircraft engine designer should analyze the requirement of the aircraft and choose the optimal velocity ratio coaxial nozzle for the engine exhaust (Papamoschou, 2004).

There have been many research studies carried out previously at various lip thickness such as 0.4  (Georgiadis, 2003), 0.7  (Papamoschou, 2004), 1.5  (Srinivasarao et al., 2014a), 1.7  (Sharma et al., 2008), 2  (Naren, Thanigaiarasu and Rathakrishnan, 2016), 2.65  (Lovaraju and Rathakrishnan, 2011), 3  (Inturiet al., 2022) and 3.2 mm (Perumal et al., 2020). However, there is no proper study to vary the lip thickness in this range from 0.7 to 3.2 mm to understand the flow behavior of a co-flowing jet.

In light of contemporary critiques of New Zealand comprehensive schooling published mainly in the popular press, it is timely to re‐examine the origins of and the rationale for the widespread adoption of this model of education. The comprehensive schooling philosophy, it was recently alleged, has produced a situation in which ‘as many as one in five pupils in the system is failing’ and where ‘there is a large group at the bottom who are not succeeding’. This group was estimated to include some 153,000 students out of the total current New Zealand student population of 765,000. In this context, however, Chris Saunders and Mike Williams, principals of Onehunga High School and Aorere College in Auckland respectively, have noted that having underachieving students in secondary schools in particular is not a recent phenomenon. A large ‘tail’ of poor performing high school students has long been a cause of concern, Williams suggests.

There is increasing support for the importance of the principal′s instructional leadership in school effectiveness. However, there is uncertainty over the extent to which principals actually engage in instructional leadership tasks. Investigates the perceptions held by principals and teachers of principals′ instructional leadership in a sample of Western Australian government primary and secondary schools using the Instructional Leadership Questionnaire. Instructional leadership was found to be a shared responsibility. Principals were perceived to be least involved in “managing the curriculum” and “evaluating and providing feedback”. Primary school principals were perceived to be more responsible for instructional leadership than their secondary counterparts. Principals of very small primary schools (less than 100 students) were most involved in tasks and those of middlesized primary schools (300 to 500 students) were least involved. “Providing rewards and recognition for high quality teaching” was the only instructional leadership task perceived not to be performed by either principals or teachers in both primary and secondary schools. Principals perceived themselves to be more involved in instructional leadership tasks than their staff perceived them to be.

The aim of this paper is to present the main findings of the studies in the field of quality management (QM) in primary and secondary education. Grouping these findings into themes and these themes, in turn, into broad categories as well as prioritizing the themes of findings are also aims of the present study.

A systematic literature review (SLR) of articles focusing on QM in primary and secondary education was carried out based on major publishers, namely Emerald Online, Taylor and Francis, Elsevier/Science Direct, Springer Link, Sage Publishing and Online. In total, 133 articles published in 62 journals during 1983–2019 were collected. The affinity diagram was applied in order to group the findings of the QM studies into logical themes and these themes into broad categories. Moreover, the Pareto diagram was applied to prioritize the themes revealed.

A plethora of articles focusing on QM in primary and secondary education have been published in the last decades. The findings of the QM studies presented in the 133 reviewed articles are grouped into 43 themes and these themes, in turn, into 6 broad categories, namely management practices, school characteristics, teachers, stakeholders, government and pupils. The analysis also reveals themes that can be characterized as “vital” and “useful.”

Researchers and school managers can take into consideration the findings of the QM studies in primary and secondary education as well as the themes of high priority for the design of future studies and QM implementation plans, respectively.

This is the first literature review study which presents analytically the findings of the QM studies in primary and secondary education. This study also contributes to the literature by formulating meaningful themes of these findings and broad categories of these themes and by prioritizing the themes revealed.

Subsonic commercial aircraft operate with turbo-fan engines that operate with moderate bypass ratio (BR) co-flowing jets (CFJ). This study aims to analyse CFJ with constant BR 6.3 and varying primary nozzle lip thickness (LT) to find a critical LT in CFJ below which mixing enhances and beyond which mixing inhibits.

CFJ were characterized with a constant BR of 6.3 and varying lip thicknesses. A single free jet with a diameter equal to that of a primary nozzle of the co-flowing jet was also studied for comparison.

The results show that within a critical limit, the mixing enhanced with an increase in LT. This was signified by a reduction in potential core length (PCL). Beyond this limit, mixing inhibited leading to the elongation of PCL. This limit was controlled by parameters such as LT and magnitude of BR.

The BR value of CFJ in the present study was 6.3. This lies under the moderate BR value at which subsonic commercial turbofan operates. Hence, it becomes impervious to study its mixing behavior.

This is the first effort to find the critical value of LT for a constant BR for compressible co-flow jets. The CFJ with moderate BR and varying LT has not been studied in the past. The present study focuses on finding a critical LT below which mixing enhances and above which mixing inhibits.

Many sports properties have had great success entering into sponsorship deals with secondary ticketing companies. However, additional benefits are possible with a reshaping of the structure of primary and secondary ticketing markets. Specifically, fully integrating both primary and secondary markets can help sports properties reduce ticket fraud, monitor fan behaviour, significantly increase revenue in both markets and improve the overall fan experience. This paper details each of these benefits and provides suggestions for programme development and administration.

The purpose of this paper is to increase understanding of the status, vulnerability and needs of the health-care and nursing service customers’ (hereafter, care service customers’) loved ones.

The position and vulnerabilities of secondary customers of care services are studied and examples provided by reviewing empirical research reported in the care service literature. A conceptual discussion is developed on the “customer” concept in an extended sense, beyond the focal customers. The “primary customer” and “secondary customer” concepts are employed to supplement the extant discussion on customer units and ecosystems.

Secondary customers are exposed to secondary vulnerability and their well-being is affected by the services provided primarily to their loved ones. The most recurring needs of secondary customers concern psychosocial support, communication and information and cultural sensitivity.

New perspectives on understanding the “customer” concept in an extended sense. This assists in supporting the customers’ dynamic activities and processes within the customer ecosystems. To address care service customers’ loved ones’ vulnerabilities and needs and to support their well-being, they should also be recognised as customers – “secondary customers” – with patients being the “primary customers”.

The results are especially relevant when considering services’ influences on vulnerable customers’ ecosystems and on individuals within them. It is important to recognise that beyond a vulnerable customer, several secondary customers may be exposed to secondary vulnerability, needing support.

The paper is apparently the first to connect the constructs “primary” and “secondary customer” and customer vulnerability to the customer ecosystem discussion. Also, essential future research questions are provided.