Search results

Kano River basin, which serves as the main source of water supply to metropolitan Kano, is also used as receiving body for industrial wastes from Sharada and Challawa industrial estates. Of the three major rivers in this basin, the Salanta river was found to receive the highest pollution from the industrial discharges with COD of 8,557.4mg/l, total solids of 16,934.6mg/l, hardness of 1,349.6mg/l CaCO₃, and ammonia nitrogen of 5,150.0mg/l. The Challawa river had COD of 598.7mg/l, total solids of 1,609.9mg/l, hardness of 1,332.0mg/l CaCO₃ and ammonia‐nitrogen 400mg/l. Both empty into the Kano river where the COD was 1,166.9mg/l, total solids 1,458.0mg/l, hardness 2,506.8mg/l and ammonia‐nitrogen 530mg/l. Although these rivers are being used extensively for water supply, irrigation, and fishing, the quality of the water was found to be unsuitable for these purposes. The paper suggests that waste water pre‐treatment by all industries, imposition of direct charges on industrial effluents by the regulating agency, as well as continuous monitoring and surveillance are required to ensure the protection of the water resources in the basin.

The importance of housing in enhancing the quality of life has been widely reported. It represents one of the basic human needs, provides protection from harm and ensures survival. Like many developing countries, different Ghanaian governments have variously pursued several programs and interventionsdirected at addressing the country's housing challenges including housing loan schemes in the colonial era to affordable housing projects in the 2000s. Notwithstanding, access to adequate housing for the low to middle-income groups still remains unresolved. This paper is an attempt to gain deeper insights into Ghana's housing situation, its challenges and the efforts made by governments during the periods before independence and after independence. The nature of the housing policies implemented during such eras is explored and the reasons for the implementation failures examined. In the end, the paper provides policy recommendations that could potentially help increase the supply of affordable urban housing in the country. The paper calls for a strong political will and pragmatic intelligence in the implementation of housing policies and programs in the country. Mechanisms to provide sufficienthousing finance for the poor to adequately participate in the housing market have also been outlined. It is concluded that the over-empowerment of the private real estate sector to be the major providers of housing may not be optimal. Rather, it would only lead to the inability of the poor to be able to actively participate in the housing market, consequently exacerbating housing poverty. Effective public-private partnership has the potential to guarantee the supply of reasonably-priced and affordable housing provision.

Social interaction is a vital facet of life for all age‐groups; for older individuals, the exercise of interpersonal exchange, and the expectation of an accompanying sense of well‐being, can assume an even greater importance when other aspects of life no longer provide opportunities for positive reward. Sociability experiences are likely to influence major indicators of both emotion and cognition, such as life and context satisfaction. The demonstration of personal competence, as may be found in the exercise of problem‐solving strategies, is also an important facility for seniors. This study of both domestic and international senior tourists has examined preferences for travel planning as the expression of a measure of personal control that are associated with sociability needs in regard to family and friends, cultural contacts, entertainment and nightlife, and to retail experiences. Also examined was the extent to which various sociability needs and planning control preferences influence measures of destination satisfaction, intention to return and also a willingness to recommend the destination. This study has found that seniors with higher sociability needs for cultural contact and associated with family and friends would more likely perceive the necessity to prepare for their trip, and also would express higher levels of satisfaction; destination satisfaction was also found to be associated with both the expressed intention to return to the destination, and also a willingness to recommend the destination to others; travel planning was not found to be associated with destination evaluative measures. Implications of these findings for destination managers and for researchers in the senior travel domain are considered.

Recent lapses in the management of high hazard organizations, such as the Fukushima event or the Deepwater Horizon blast, add considerable urgency to better understand the complicated and complex phenomena of leading and managing high reliability organizations (HRO). The purpose of this paper is to offer both theoretical and practical insight to further strengthen reliability in high hazard organizations.

Phenomenological study based on over three years of research and thousands of hours of study in HROs conducted through a scholar-practitioner partnership.

The findings indicate that the identification and the management of competing tensions arising from misalignment within and between public policy, organizational strategy, communication, decision-making, organizational learning, and leadership is the critical factor in explaining improved reliability and safety of HROs.

Stops short of full-blown grounded theory. Steps were made to ensure validity; however, generalizability may be limited due to sample.

Provides insight into reliably operating organizations that are crucial to society where errors would cause significant damage or loss.

Extends high reliability research by investigating more fully the competing tensions present in these complex, societally crucial organizations.

In light of and due to the spike in concern regarding high hazard industries, in general, and nuclear power plants (NPPs) in particular, resulting from the Japanese earthquake and crisis at Fukushima, the purpose of this paper is to offer an innovative organizational development (OD) intervention that may enhance safety and operational performance directed at these critical organizations.

Drawing on and integrating key elements of strategy, leadership coaching and development and assessment, the authors describe and detail an intervention designed to bring a troubled NPP to a state of reliability.

It was found that performance improved in a relatively short amount of time from implementing this OD tool.

The findings contained herein may apply to any organization aiming to improve on safety and operational performance.

The paper's findings should appeal to high hazard and high reliability organizations, such as those found within the energy industry, that must continuously strive toward improved operational and safety performance.

The purpose of this paper is to investigate the form of young male socialisation referred to as birzha, in its relation to public space in Georgia. Birzha defines a group of young men who meet regularly in urban open spaces in Tbilisi’s neighbourhoods. Partly considered as the initial step of a criminal career, belonging to birzha is a mark of identification with one’s local group. The contested nature of public space is illustrated by the conflicting relation between birzha’s bottom-up use of public space and top-down projects of urban renovation sought by Saakashvili’s government.

Drawing upon literary and media sources, and analysing fieldwork data collected in 2008-2009 and 2014, this study explores how the announced (re)construction of public space under Saakashvili resulted in institutional interventions from above which curtailed public space’s accessibility.

The present analysis points out contradictions in Saakashvili’s government’s political narrative on public space. In the institutional focus on a future of order, transparency, and democracy, birzha is an insistent reminder of an informal and corrupted past. Banned from futuristic projections of the public space, in the present birzha is annihilated by state repression, enforced in opaque zones out of public sight.

Focusing on a largely overlooked phenomenon in social science research, the paper highlights the ways in which conflicting approaches to public space affect the relation between political institutions and citizens. Delving into ambivalent public/private divides in post-socialist societies, the study of Georgian birzha offers an original angle for investigating the contestation of urban public space in relation to political legitimacy and transparency.

A correlation has been shown in the literature between credit constraints and the adoption of agricultural technologies, technical efficiencies and measures for adapting to climate change. The relationship between credit constraints, risk management strategy adoption and income, however, is not well understood. Consequently, the purpose of this study was to investigate how credit constraints affect the income and risk management practices adopted by Northern Nigerian maize farmers.

Cross-sectional data were collected from 300 maize farmers in Northern Nigeria using a multi-stage sampling technique. Descriptive statistics, seemingly unrelated regression and double hurdle regression models were the analysis methods.

The results showed that friends and relatives, banks, “Adashe”, cooperatives and farmer groups were the main sources of credit in the study area. The findings also revealed that the sources of risk in the study area included production risk, economic risk, financial risk, institutional risk, technological risk and human risk. In addition, the risk management strategies used to mitigate observed risks were fertilizer application, insecticides, planting of disease-resistant varieties, use of herbicides, practising mixed cropping, modern planning, use of management tools as well as making bunds and channels. Furthermore, we found that interest rate, farm size, level of education, gender and marital status were significant determinants of statuses of credit constraints while the age of the farmer, gender, household size, primary occupation, access to extension services and income from maize production affected the choice and intensity of adoption of risk management strategies among the farmers.

The study concluded that credit constrained status condition of farmers negatively affected the adoption of some risk management strategies and maize farmers’ income.

The study concluded that credit constrained status condition of farmers negatively affected the adoption of some risk management strategies and maize farmers’ income. It therefore recommends that financial service providers should be engaged to design financial products that are tailored to the needs of smallholder farmers in the study area.

This paper incorporates the role of constraints in influencing farmers’ decisions to uptake credits and subsequently their adoption behaviours on risk management strategies. The researcher approached the topic with a state-of-the-art method which allows for obtaining more reliable results and hence more specific contributions to research and practice.

During the last few decades social resilience and social vulnerability have been two crucial sociological concepts for everyone involved in crisis and disaster management. The fundamental purpose in the present analysis is based on the consideration of resilience from a sociological perspective and the notion of social capital, its proper features, dynamics and processes within different groups of people involved in a disaster process.

All these social components could be evaluated as social indicators of vulnerability and resilience according to the sociological approach and its main theories about social capital and resilience, social and methodological implications. The operative context of this theoretical reflection has been constituted by megacities, considered as the “new” social space where, nowadays, major social relations and risk reduction actions take place through a collaborative pattern not based on a top down organizational model.

Attention is focused on the sociological findings as the importance of social cohesion, strengthening social relationships with particular consideration for the crucial role of social capital during all stages of the disaster process: prevention and preparedness, planning, warning communication, physical and psychological impacts, emergency and disaster response, recovery and reconstruction with the specific aim of enhancing social resilience and attempting to diminish social vulnerability.

The originality of this proposal in the field of disaster resilience is its use of the sociological approach and its theoretical characteristics and instruments, such as, for example, the definitions of social capital. The consideration for this topic will be future challenges to improve urban disaster risk reduction according to social relationship and its characteristics of interconnection and multidimensionality.

Digitalization accelerates the need of tourism and hospitality ecosystems to reframe business models in line with a data-driven orientation that can foster value creation and innovation. Since the question of data-driven business models (DDBMs) in hospitality remains underexplored, this paper aims at (1) revealing the key dimensions of the data-driven redefinition of business models in smart hospitality ecosystems and (2) conceptualizing the key drivers underlying the emergence of innovation in these ecosystems.

The empirical research is based on semi-structured interviews collected from a sample of hospitality managers, employed in three different accommodation services, i.e. hotels, bed and breakfast (B&Bs) and guesthouses, to explore data-driven strategies and practices employed on site.

The findings allow to devise a conceptual framework that classifies the enabling dimensions of DDBMs in smart hospitality ecosystems. Here, the centrality of strategy conducive to the development of data-driven innovation is stressed.

The study thus developed a conceptual framework that will serve as a tool to examine the impact of digitalization in other service industries. This study will also be useful for small and medium-sized enterprises (SMEs) managers, who seek to understand the possibilities data-driven management strategies offer in view of stimulating innovation in the managers' companies.

The paper reinterprets value creation practices in business models through the lens of data-driven approaches. In this way, this paper offers a new (conceptual and empirical) perspective to investigate how the hospitality sector at large can use the massive amounts of data available to foster innovation in the sector.

This paper examined the current status of municipal solid waste management across Nigeria. The core aspects covered are generation, characterization, collection, scavenging, open dumping, disposal and environmental implications of poor solid waste management. The purpose of this paper is to present a comprehensive overview of the current state of municipal solid waste management in Nigeria.

This study was executed by a combination of an extensive literature search and field study. Solid waste generation rates for 31 Nigerian cities were obtained from literature. In addition, characteristics of municipal solid waste from 26 Nigerian cities were also obtained from literature. Other aspects such as characterization of solid waste obtained from final dumpsite and heavy metals accumulation in solid waste dumpsites were undertaken first hand.

Solid waste generation rate was found to vary from 0.13 kg/capita/day in Ogbomosho to 0.71 kg/capita/day in Ado-Ekiti. Factors affecting solid waste generation rates were identified. Typically, food waste was found to constitute close to 50 percent of overall municipal solid waste in Nigerian cities. This study shows that the rate of generation of plastics, water proof materials and diapers has assumed an upward trend. Due to the dysfunctional state of many municipal waste management authorities, many cities have been overrun by open dumps. For instance, more than 50 percent of residents of Maiduguri in northern Nigeria and Ughelli in southern Nigeria dispose of their waste in open dumps. Indiscriminate disposal of waste has also resulted in the preponderance of toxic heavy metals in agricultural soils and consequent bioaccumulation in plants as well as groundwater contamination.

The main limitation of this research is municipal waste management authorities do not have relevant data. Hence, there was heavy reliance on published materials. The status of waste management in Nigeria is very deplorable and therefore poses serious threats to public and environmental health. There is urgent need for both government and individuals to adopt holistic and sustainable waste management strategies in order to safeguard public/environmental health.

Findings from this paper can form a veritable resource for the formulation and implementation of sustainable municipal solid waste management framework and strategies in Nigeria.

While most studies on municipal solid waste management in Nigeria are focussed on selected cities of interest, this particular study cuts across most cities of Nigeria in order to present a broader and holistic view of municipal solid waste management in Nigeria. The paper has also unraveled core municipal solid waste management challenges facing Nigerian cities.