scholarly journals Analysis of Hydro-Meteorological Variables and Runoff Characteristics in the Sudano-Sahelian Ecological Zone of Nigeria

2020 ◽  
pp. 331-341
Author(s):  
Samsideen Ojoye ◽  
I. P. Ifabiyi ◽  
Ishiaku Ibrahim
Keyword(s):  
Influencing Factor ◽  
Annual Rainfall ◽  
Ecological Zone ◽  
Wet Season ◽  
Upward Trend ◽  
Significant Relationships ◽  
Rivers And Lakes ◽  
Hydrological Services ◽  
The Impact ◽  
The Relationship

This study examines the impact of climate change on hydrologic resources of selected rivers and lakes in the Sudano- Sahelian Ecological Zone of Nigeria. Climatologically data acquired were rainfall, temperature and evaporation from Nigeria Meteorological Agency, Oshodi, Lagos. Similarly, the hydrological data of river discharge and lake levels were obtained from Nigeria Hydrological Services, Kaduna. We used the Standardised Anomaly Index to test for fluctuations in rainfall, temperature, runoff and water level in lakes. Mann Kendall statistics were used to examine the trends in the climate variables. Pearman correlation was adopted to test the relationship between runoff and the rainfall variables. The findings revealed a general downward trend in rainfall amounts in the 1970s and 1980s. The findings also detected an upward trend in the amount of rainfall from 1990 to 2019. The correlation results of rainfall attributes and runoff showed significant relationships in annual rainfall (r= 0.61), annual rain-days (r=0.61), rain days of heavy rainfall (r= 0.57) and wet season rainfall (r=0.54). These attributed when combined, revealed a 51% contribution to the overall regression with (r=0.51) at 95% probability level. The study concluded that the Sudano-Sahelian Ecological Zone of Nigeria experiencing an increase in the annual rainfall. The increase in rainfall point to the recovery of the rainfall from the great Sahelian drought of the 1970s and 1980s. The rise in the annual rainfall is a possible influencing factor to the frequent occurrences of flooding in recent time across the ecological zone.

scholarly journals Ethics of Retailers and Consumer Behavior in E-Commerce

2020 ◽  
Vol 11 (1) ◽  
pp. 107-126
Author(s):  
Zhi Yang ◽  
Quang Van Ngo ◽  
Chung Xuan Thi Nguyen
Keyword(s):  
Electronic Commerce ◽  
Communication Technology ◽  
Purchase Intention ◽  
Purchase Decision ◽  
Information Communication ◽  
Significant Relationships ◽  
Online Retailers ◽  
Relationship Of ◽  
The Impact ◽  
The Relationship

In the era of the information-communication technology with the development of electronic commerce, consumers can buy almost everything anywhere and at any time. One of the greatest benefits of e-commerce has been the convenience and the vast choices which consumers get online. However, some serious issues exist that impede consumers from transaction online. These issues have attracted the attention of many marketing researchers in recent years. In this research, the authors focus on the impact of consumers' ethics perception of e-retailer on their purchase intention and satisfaction. The authors also try to clarify the roles of trust and commitment in the relationship of ethics on consumers purchase decision and satisfaction because of their importance in e-commerce but also the privation in the research of previous studies. The data collected from a survey of 390 online consumers in Vietnam. Results reveal that there are significant relationships between online retailers' ethics and consumers' purchase intention and satisfaction via the mediation of trust and commitment.

scholarly journals THE IMPACT OF PROACTIVE-PERSONALITY ON INNOVATIVE WORK BEHAVIOR AND WORK ENGAGEMENT IN THE UAE AVIATION INDUSTRY.

2019 ◽  
Vol 2 (1) ◽  
pp. 108-112
Author(s):  
Sultan Salem Alshamsi ◽  
Kamarul Zaman Bin Ahmad
Keyword(s):  
Work Engagement ◽  
Structural Equation ◽  
Proactive Personality ◽  
Work Behavior ◽  
Aviation Industry ◽  
Innovative Work Behavior ◽  
Significant Relationships ◽  
Innovative Work ◽  
The Impact ◽  
The Relationship

The objective of this research is to examine the relationship between Proactive Personality, innovative work behavior, and work engagement. The sample consists of 220 respondent managers in the Aviation Industry in the UAE. Results of Structural Equation Modelling using SmartPLS revealed that there are significant relationships between Proactive Personality and innovative work behavior, and between Innovative Work Behavior and Work Engagement.

The impacts of e-atmospherics on emotions and on the booking intentions of hotel rooms

2017 ◽  
Vol 19 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Mohamed Essawy
Keyword(s):  
Online Survey ◽  
Information Design ◽  
Future Research ◽  
Significant Relationships ◽  
Hotel Websites ◽  
Booking Intentions ◽  
The Impact ◽  
The Relationship ◽  
Atmospheric Cues ◽  
Hotel Customers

This research is designed to investigate the effects of e-atmospheric cues of hotel websites on emotions and on the behavioral responses of customers. Frequent hotel customers (each conducted at least five online bookings yearly) participated in an online survey. The survey measured the impact of two atmospheric cues (graphics design and information design) on emotions (pleasure, arousal, and dominance), the relationship between emotions and booking intentions, and the impact of atmospheric cues on booking intentions. The results showed significant effects of information design on emotions and on booking intentions. The results also revealed the significant relationships between emotions and booking intentions. The present findings of the specific impact of information design on emotions and on booking intentions contribute to extending the knowledge in pleasing hotel customers and forming their booking intentions. Future research could consider other e-atmospherics such as the use of music and color.

scholarly journals The Impact of Climate Change on the Eutrophication of Water Ecosystems in the Southern Part of the Republic of Moldova

2014 ◽  
Vol 8 (2) ◽  
pp. 163-169
Author(s):  
Maria Nedealcov ◽  
Dumitru Drumea
Keyword(s):  
Climate Change ◽  
Climate Changes ◽  
Annual Rainfall ◽  
Danube Basin ◽  
Rivers And Lakes ◽  
Algae Growth ◽  
Previous Decade ◽  
The Republic ◽  
Water Ecosystems ◽  
The Impact

Abstract The accelerating pace of climate change mainly on the adjacent territory of the Danube basin, contribute to the essential eutrophication of water basins within the region. The results indicate that air temperature recorded a double warming compared to territories from the central part of the country. On the background the accelerated warming there is a declining trend and of annual rainfall amounts. These climate changes, especially in recent decades have led to significant increase of water temperature in rivers and lakes. Thus, it constituted in the years 1990-2000 by 0.7 and 1.50C compared to the period 1980-1990, and by 1.0...2,00C accordingly in the years 2000-2013 compared to the previous decade. The significant increase of temperature during the last decade contributed to the intensification of algae growth and together with other factors contributed to the increase by about 20% of the nitrogen content, thus ensuring the ―flowering‖ with 50% of the water bodies’ volume.

scholarly journals Managerial conceptual competencies and the performance of small and medium-sized enterprises in Zimbabwe

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Nhamo Mashavira ◽  
Crispen Chipunza
Keyword(s):  
Firm Performance ◽  
Return On Investment ◽  
Small And Medium Enterprises ◽  
Quantitative Approach ◽  
Managerial Competencies ◽  
Significant Relationships ◽  
Medium Enterprises ◽  
The Impact ◽  
The Relationship ◽  
Minimal Evidence

Background: Literature is replete with evidence on the impact of managerial competencies on firm performance. Yet, there is minimal evidence on how managerial conceptual competencies in particular, affect the performance of small and medium enterprises (SMEs) in Zimbabwe.Aim: The current study was meant to find the impact of managerial conceptual competencies on the performance of SMEs in Zimbabwe’s Harare Province.Setting: The under-exploration of the relationship between managerial conceptual competencies and SME performance, in an economy that at present is highly informalised, provides a platform for further exploration of this phenomenon.Methods: The study adopted a purely quantitative approach that employed a structured direct survey design.Results: The study established that owners and/or managers had reasonable levels of conceptual competencies and that SMEs performed fairly well in terms of both innovation and return on investment (ROI). It was found out that statistically significant relationships existed between managerial conceptual competencies and SME performance when measured by innovation and ROI.Conclusion: In view of the results, it can be concluded that the performance of SMEs in terms of innovation and ROI can be influenced, to some extent, by owner and/or managers’ conceptual competencies.

scholarly journals The Relationship Between Social Change Involvement and Education

2017 ◽  
Vol 9 (1) ◽  
Author(s):  
Michelle S Brown ◽  
Beate Baltes
Keyword(s):  
Social Change ◽  
Social Action ◽  
Upward Trend ◽  
Online Surveys ◽  
Chi Square ◽  
Level Of Education ◽  
Significant Relationships ◽  
Change Impact ◽  
Positive Social Change ◽  
The Relationship

Positive social change is part of Walden University’s mission. As such, the institution sponsored the<em> Social Change Impact Report</em>, which includes data from three online surveys that investigated participants’ experiences with social change because factors related to involvement in social action to improve the lives of individuals and communities are not fully known. Data were collected from the <em>Social Change Impact Report</em> to examine the relationship between the level of education an individual has achieved and how they rate the importance of and the involvement in positive social change activities. Results of chi square and analysis of variance indicated significant relationships between variables and an apparent upward trend in perceptions of and self-reported involvement in social change activities as level of education increases.

scholarly journals Energy consumption, CO² emissions and economic growth in MENA countries

2020 ◽  
Vol 11 (1) ◽  
pp. 133-150
Author(s):  
Ali Maalej ◽  
Alexandre Cabagnols
Keyword(s):  
Economic Growth ◽  
Energy Use ◽  
Co2 Reduction ◽  
Poor Countries ◽  
Mena Countries ◽  
Significant Relationships ◽  
Growth Energy ◽  
Rich Countries ◽  
The Impact ◽  
The Relationship

This study investigates the relationship between economic growth, final consumption, investment, energy use and CO² emissions in two groups of Middle East and North Africa (MENA) countries: Oil Poor Countries (OPC) and Oil Rich Countries (ORC). It is assumed and verified that the structural relationship between GDP growth, energy use and CO² emissions is different in these two groups of countries. FGLS panel estimations were carried out over the period 1974–2014. In ORC, no significant relationships are observed between energy use and GDP, whereas CO² emissions and GDP are positively linked. In OPC, there are opposite connections: a positive link between GDP and energy use, whereas the impact of CO² emissions on GDP tends to be negative. In both groups of countries, a positive and bi-directional link is observed between energy use and CO² emissions. The strength of this link is twice bigger in OPC than in ORC. This indicates that CO2 reduction policies conducted through energy use control (quantitative and qualitative) will have higher effect in OPC than in ORC. This also shows that the relationships between economic growth, energy use and CO² emissions differ noticeably and structurally between OPC and ORC. These results provide new insights into the opportunities and threats faced by CO2 reduction policies in OPCs and ORCs.

scholarly journals Temporal variation in fish community in the tailrace at Três Marias Hydroelectric Dam, São Francisco River, Brazil

2012 ◽  
Vol 10 (4) ◽  
pp. 731-740 ◽  
Author(s):  
Raquel Coelho Loures ◽  
Paulo Santos Pompeu
Keyword(s):  
Temporal Variation ◽  
Fish Community ◽  
Migratory Species ◽  
Wet Season ◽  
Negative Effects ◽  
Hydroelectric Energy ◽  
Hydroelectric Dam ◽  
Dam Operation ◽  
The Impact ◽  
The Relationship

Damming rivers to generate hydroelectric energy causes a series of changes in the environment, including impacts on the ichthyofauna. Knowledge of the fish community immediately downstream from a hydroelectric dam can help to reduce the negative effects of dam operation, such as fish entrance into the draft tube during turbines maintenance. We evaluated the temporal variation in fish community composition and abundance, near Três Marias Hydroelectric Dam (TMD), and its relationship with abiotic variables. Samples (n = 18) were carried out using gill nets in the tailrace of the dam, over the course of a hydrological year, at six time points during a 24-hour period. Abiotic data were also sampled to assess the relationship with the biotic data. In the tailrace, Characiformes showed the highest richness, while Siluriformes were the most abundant. Of the 33 species sampled, six were migratory. The fish community was significantly different between the dry and wet seasons, with higher abundances during the wet season. In the wet season, the frequency of migratory species in the community rose from 0.7 to 18.3%, and Pimelodus maculatus accounted for 14.5% of the overall abundance. We observed that Characiformes captures occurred mainly in the morning, with peak activity between 5:00 and 9:00 h. Siluriformes showed greater nocturnal activity and were largely captured between 17:00 and 21:00 h. Synchronizing operational maneuvers that represent high risk to the fish with periods of low abundance in the tailrace, i.e., during months of low precipitation, may be a measure to reduce the impact of the operation on the downstream fish community.

scholarly journals The Impact of Psychological Factors on Women Entrepreneurial Inclination: Mediating Role of Self-Leadership

2021 ◽  
Vol 12 ◽  
Author(s):  
Zhang Linfang ◽  
Rimsha Khalid ◽  
Mohsin Raza ◽  
Noppadol Chanrawang ◽  
Rehana Parveen
Keyword(s):  
Personality Traits ◽  
Sampling Technique ◽  
Entrepreneurial Intention ◽  
Entrepreneurial Intentions ◽  
Mediating Role ◽  
Significant Relationships ◽  
Societal Expectations ◽  
The Impact ◽  
The Relationship

The worth of women’s entrepreneurship is accepted globally, but there is less focus on it in developing countries, and societal expectations mean women often lack the confidence to start their own business. The core purpose of this research is to investigate the influence of personality traits on women’s inclination toward entrepreneurship. The personality traits are measured through the dimensions of openness, neuroticism, extraversion, conscientiousness, and agreeableness. Further, the study introduced the mediator of self-leadership on personality traits and entrepreneurial intentions of women. The study is quantitative in nature and used a questionnaire survey to collect the data by convenience sampling technique. The data was collected in the context of Pakistan, and Smart PLS was chosen for further analysis. The findings revealed the significance of the relationship between personality traits and entrepreneurial intention. Furthermore, the study also highlighted the significance of self-leadership as a mediator and proposed significant relationships. The study suggested that personality issues should be considered and used from a business perspective, and self-leadership is important for women. The study provides room for policymakers and institutes to inform educational policies to motivate women entrepreneurs for the future.

scholarly journals Research on Poyang Lake Regional Protection and Management Countermeasures under the Change of River-lake Relationship

2021 ◽  
Vol 283 ◽  
pp. 02046
Author(s):  
Liqiang Yao ◽  
Dasheng Zou ◽  
Jijun Xu ◽  
Yanyi Liu ◽  
Bo Yan
Keyword(s):  
Yangtze River ◽  
Poyang Lake ◽  
Lake Area ◽  
The Yangtze River ◽  
Rivers And Lakes ◽  
The Three Gorges Project ◽  
Poyang Lake Area ◽  
Dry Water ◽  
The Impact ◽  
The Relationship

In recent years, with the construction and operation of the Three Gorges Project, a series of changes have taken place in the relationship between the Yangtze River and Poyang Lake. Changes in hydrological conditions have led to problems in the Poyang Lake area such as early dry season, extended dry duration, and lower dry water level. As the largest freshwater lake in my country, Poyang Lake is an important treasure house of water resources in the middle and lower reaches of the Yangtze River. It is of great significance to study the protection and management of Poyang Lake under the changing relationship between rivers and lakes. This article analyzes the impact of changes in the relationship between rivers and lakes on the hydrological situation of the Poyang Lake area, and sorts out the problems of the ecological environment under the changes of rivers and lakes. On this basis, combined with the ongoing Poyang Lake water conservancy project, the importance of the construction of the hub is analyzed, and relevant suggestions for the current problems facing Poyang Lake are put forward.

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