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Influence of road transport infrastructure on agricultural sector development in Nigeria

Abstract

The study investigated the effects of road transport infrastructure on agricultural sector development in Nigeria from 1985 to 2014, using secondary annual time series data on agricultural development (proxy by gross domestic product in the Agric sector) road transport infrastructure (proxy by length of paved road per square kilometer of area) export and capital, all obtained from the Central Bank of Nigeria (CBN) [3], and National Bureau of Statistics (NBS) [16], statistical bulletins. The data were analyzed using Granger Causality test and Ordinary Least Square estimation techniques. The study concluded that a positive and statistically significant relationship exists between road transport infrastructures (LRT) also evidence was found of a unidirectional causality from agricultural sector development to transport infrastructure. The study, therefore, recommends that adequate and timely maintenance of existing roads should be carried out as well as enacting appropriate regulations that ensure proper implementation and completion of new road construction contracts in the country in order to boost agricultural sector development, reduce wastage of farm produce and increase the possibility of economic diversification.

Open access
Use of ergonomic principles in manual order picking systems

Abstract

Successful companies are continually striving to streamline costs and optimize processes, enabling them to grow progress, develop and ensure competitiveness on the market. A large part of the costs arises in warehouses, where up to 55% of total costs are generated by order-picking, which makes it important and interesting in terms of research. The paper explores “picker to part” order-picking concept, which enables flexible work and is the optimal choice for most companies. The concept is associated with a high level of work-related injuries and work-related illnesses. Work requires physical efforts resulting from handling heavy goods, performing repetitive movements and using manipulative means. Human as the main actor of the concept affects the costs caused by picking and the quality of work done, which depends on technological support, physically and psychologically capable and motivated people. Due to the high costs of service, the focus on time planning and productivity increases. Contrary, the lack of attention is paid to the working conditions and the health status of the pickers. To overcome this gab, a review of scientific and professional literature on ergonomic principles in picking concept »picker to part« was carried out, followed by a quantitative survey of ergonomic properties in warehousing activities. Results revealed that more than 60% of the surveyed order-pickers associate problems with health with the characteristics of work, about 24% of them associate health problems with the use of a particular means of transport, and all agree that provided measures to reduce physical effort and greater support of technologies influence on increased speed of work and better health status of order-pickers.

Open access
Burgeoning Data Repository Systems, Characteristics, and Development Strategies: Insights of Natural Resources and Environmental Scientists

Abstract

Currently, we are witnessing the emergence and abundance of many different data repositories and archival systems for scientific data discovery, use, and analysis. With the burgeoning of available data-sharing platforms, this study addresses how scientists working in the fields of natural resources and environmental sciences navigate these diverse data sources, what their concerns and value propositions are toward multiple data discovery channels, and most importantly, how they perceive the characteristics and compare the functionalities of different types of data repository systems. Through a user community research of domain scientists on their data use dynamics and insights, this research provides strategies and discusses ideas on how to leverage these different platforms. Furthermore, it proposes a top–down, novel approach to the processes of searching, browsing, and visualizing for the dynamic exploration of environmental data.

Open access
Exploring Technology Evolution in the Solar Cell Field: An Aspect from Patent Analysis

Abstract

The identification and tracking of technology trends in an industry is crucial for effective information management, as well as for companies to maintain their competitive edge in a changing technological environment. A novel method that combines patentometrics, time series analysis, and social network analysis is proposed to capture the evolution of technology topics and to monitor the vicissitudes of dominators. Taking patents in the solar cell field as an example, a total of 3,820 patents issued between 1997 and 2011 were collected from the United States Patent and Trademark Office database. We divided the examined time span into five 3-year periods, during which the technology dominators, who are the major contributors of patents in a technological field, were identified. These key assignees were also classified as stable, appearing, or exiting based on their transition patterns from one time period to the next. Results show that solar cell patents can be grouped into eight major technology communities, and that the frequency of change in technology dominators across the years varied for each community. We further examined the relationship between a technology dominator’s transition pattern and the changes in its patent characteristics. The appearing technology dominators were found to have increased values for several patent characteristics, including science linkage, pendency period, originality index, and endogeneity index, while their technology cycle time decreased; the stable technology dominators exhibited decreasing science linkage and originality index values; and exiting technology dominators showed trends in patent characteristics that were opposite to that of the appearing technology dominators. By using the methodology proposed in this study, companies can gain critical insights into the major trends of a technological field, which would be invaluable to the planning and assessment of a company’s research-and-development strategies.

Open access
g st -store: Querying Large Spatiotemporal RDF Graphs

Abstract

The Simple Protocol and RDF Query Language (SPARQL) query language allows users to issue a structural query over a resource description framework (RDF) graph. However, the lack of a spatiotemporal query language limits the usage of RDF data in spatiotemporal-oriented applications. As the spatiotemporal information continuously increases in RDF data, it is necessary to design an effective and efficient spatiotemporal RDF data management system. In this paper, we formally define the spatiotemporal information-integrated RDF data, introduce a spatiotemporal query language that extends the SPARQL language with spatiotemporal assertions to query spatiotemporal information-integrated RDF data, and design a novel index and the corresponding query algorithm. The experimental results on a large, real RDF graph integrating spatial and temporal information (> 180 million triples) confirm the superiority of our approach. In contrast to its competitors, gst-store outperforms by more than 20%-30% in most cases.

Open access
Information Security Compliance in Organizations: An Institutional Perspective

Abstract

The increasing recognition of the importance of information security has created institutional pressures on organizations to comply with information security standards and policies for protecting their information. How such pressures influence information security compliance in organisations, however, is unclear. This paper presents an empirical study to investigate the impact of institutional pressures on information security compliance in organizations. With the use of structural equation modelling for analysing the data collected through an online survey, the study shows that coercive pressures, normative pressures, and mimetic pressures positively influence information security compliance in organizations. It reveals that the benefits of information security compliance motivate management to strengthen their commitments at information security compliance. Furthermore, the study finds out that social pressures do not have a significant impact on management commitments towards information security compliance. Theoretically this study contributes to the information security research by better understanding how institutional pressures can be used for enhancing information security compliance in organizations. Practically this study informs information security policy makers of the major institutional drivers for information security compliance.

Open access
When Econometrics Meets Machine Learning
Open access
Actions of National Bank of Romania on Bank Liquidity

Abstract

The central bank’s action on bank liquidity implies the action on the amount of currency issued by the central bank that banks can acquire in their mutual relationships, and on its price, which is the action on the interest rate.

In order to respond to banks’ treasury needs, the central bank acts on the money market through restrictions on refinancing options and handling reserve requirements.

The paper aims to investigate the extent to which the NBR’s money tool system influences the mass and quality of credit granted by banks in the Romanian banking system. The monetary policy strategy adopted by the NBR had a strong influence on the macroeconomic variables of Romania

Open access
Artificial Conditions in Managing Agriculture European Funds

Abstract

The European Commission, through the Directorate-General for Agriculture and Rural Development has found that investment projects is the main way of undermining the EU’s financial interests regarding Rural Development, where three types of fraud can be found: 1. Ordinary Fraud (using funding for purposes other than those for which it was granted); 2. Rigged Procurement Procedures (e.g.: acquisition of second-hand equipment instead of new/complacency offers/manufactured/falsified and inflated offers); 3. Creation of artificial conditions for obtaining financing. Identifying and punishing them has become a priority for the Payment Authorities of the Member States of the European Union.

Open access
Communication, a Premise of Efficiency and Effectiveness in Current Society

Abstract

Nowadays the concerns for communication analysis are highlighting its complexity. If for the regular people, communication means essentially to transmit information mostly using words, for the communication science specialists, it got a different meaning. Regardless of the meaning given to the term, everything gravitates around information and managing the interest. These two terms define the content of communication. The reasons, purposes, meanings are mostly different, depending on the actors involved in the message exchange. In order to not wander in this definitions universe, we will note only one: “Broadly, communication is the process of issuing a message and send it in a coded manner with the help of a communication channel to a recipient for reception” [Burcin, Octavian, 2009].

This definition was chosen, starting from the fact that all definitions for communication have at least a series of mutual elements, from which we note: communication is the process of transmitting information, ideas, opinions, reviews, either from one individual to another, or from a group to another; communication is an attribute of the human being; no kind of activities, from the common daily activities to the complex activities developed at collectivities level, cannot be conceived outside the communication process.

Open access