Dams: Effects of Hydrological Infrastructure on Development

2019 ◽  
Vol 11 (1) ◽  
pp. 125-148
Author(s):  
Andrew Dillon ◽  
Ram Fishman
Keyword(s):  
Economic Development ◽  
Flood Control ◽  
The Body ◽  
Future Research ◽  
Emerging Issues ◽  
Potential Benefits ◽  
The Impact ◽  
Benefits And Costs ◽  
Distributional Impacts

Hydrological investments, particularly irrigation dams, have multiple potential benefits for economic development. Dams also have financial, environmental, and distributional impacts that can affect their benefits and costs. This article reviews the evidence on the impact of dams on economic development, focusing on the levels and variability of agricultural productivity, and its effect on poverty, health, electricity generation, and flood control. We also review the evidence on irrigation efficiency and collective action of dam maintenance. Throughout the discussion, we highlight the empirical challenges that restrict the body of causally interpretable impact estimates and areas in which the evidence is particularly thin. We conclude with a discussion of emerging issues pertaining to the long-term sustainability of dams’ impacts and suggest directions for future research.

scholarly journals Is Tillage a Suitable Option for Weed Management in Conservation Agriculture?

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1746
Author(s):  
Stéphane Cordeau ◽  
Auxence Baudron ◽  
Guillaume Adeux
Keyword(s):  
Winter Wheat ◽  
Crop Yield ◽  
Weed Management ◽  
Conservation Agriculture ◽  
Future Research ◽  
Pressure Potential ◽  
Weed Communities ◽  
Potential Benefits ◽  
The Impact

In Europe, conservation agriculture (CA) is currently challenged by higher weed pressure, potential glyphosate ban and reduced crop yield. Based on preliminary results and a critical analysis, we provide insights on how to assess the effect of introducing different levels of tillage intensity, after a long-term CA sequence, on weed communities and crop yield. The experiment compared three types of fallow management (ploughing (CT), reduced tillage (RT), no-till with glyphosate (NT)) on four fields after 17 years of no-plough, which ended with 7 years of CA. The introduction of tillage proved to be a major driver of weed communities before weeding (density, richness and composition) in winter wheat. Weed density and species richness before weeding was greatest in RT, intermediate in CT and lowest in NT. The number of grains per ear and crop yield increased with tillage intensity (+11% for RT, +31% for CT). We provide avenues for future research through detailed methods and key references. Differences in winter wheat productivity were possibly related to enhanced soil structure and increased mineralisation of soil organic matter. Potential benefits of occasional ploughing will depend on the density and composition of the newly upwelled weed seedbank, which will need to be assessed before implementing tillage. From a multicriteria perspective, the long-term benefits associated with CA could largely exceed short-term yield increases associated with occasional tillage. Future studies will need to characterize the impact of occasional tillage operations on the long-term multiperformance of CA systems.

Comparative assessment of morphological mechanisms of maintaining structural liver homeostasis in the dynamics of exposure to coal-rock dust and sodium fluoride on the body

2020 ◽  
pp. 189-194
Author(s):  
M. S. Bugaeva ◽  
O. I. Bondarev ◽  
N. N. Mikhailova ◽  
L. G. Gorokhova
Keyword(s):  
Sodium Fluoride ◽  
Morphological Changes ◽  
The Body ◽  
System Level ◽  
Production Factor ◽  
Coal Rock ◽  
The Impact ◽  
Structural Homeostasis ◽  
Rock Dust

Introduction. The impact on the body of such factors of the production environment as coal-rock dust and fluorine compounds leads to certain shift s in strict indicators of homeostasis at the system level. Maintaining the relative constancy of the internal environment of the body is provided by the functional consistency of all organs and systems, the leading of which is the liver. Organ repair plays a crucial role in restoring the structure of genetic material and maintaining normal cell viability. When this mechanism is damaged, the compensatory capabilities of the organ are disrupted, homeostasis is disrupted at the cellular and organizational levels, and the development of the main pathological processes is noted.The aim of the study is to compare the morphological mechanisms of maintaining structural homeostasis of the liver in the dynamics of the impact on the body of coal-rock dust and sodium fluoride.Materials and methods. Experimental studies were conducted on adult white male laboratory rats. Features of morphological mechanisms for maintaining structural homeostasis of the liver in the dynamics of exposure to coal-rock dust and sodium fluoride were studied on experimental models of pneumoconiosis and fluoride intoxication. For histological examination in experimental animals, liver sampling was performed after 1, 3, 6, 9, 12 weeks of the experiment.Results. The specificity of morphological changes in the liver depending on the harmful production factor was revealed. It is shown that chronic exposure to coal-rock dust and sodium fluoride is characterized by the development of similar morphological changes in the liver and its vessels from the predominance of the initial compensatory-adaptive to pronounced violations of the stromal and parenchymal components. Long-term inhalation of coal-rock dust at 1–3 weeks of seeding triggers adaptive mechanisms in the liver in the form of increased functional activity of cells, formation of double-core hepatocytes, activation of immunocompetent cells and endotheliocytes, ensuring the preservation of the parenchyma and the general morphostructure of the organ until the 12th week of the experiment. Exposure to sodium fluoride leads to early disruption of liver compensatory mechanisms and the development of dystrophic changes in the parenchyma with the formation of necrosis foci as early as the 6th week of the experiment.Conclusions. The study of mechanisms for compensating the liver structure in conditions of long-term exposure to coal-rock dust and sodium fluoride, as well as processes that indicate their failure, and the timing of their occurrence, is of theoretical and practical importance for developing recommendations for the timely prevention and correction of pathological conditions developing in employees of the aluminum and coal industry.The authors declare no conflict of interests.

scholarly journals Effect of Barley Sowing Density on the Integrated Weed Management of Lolium rigidum (Annual Ryegrass) in Mediterranean Dryland: A Modeling Approach

Agronomy ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1565
Author(s):  
María Belén D’Amico ◽  
Guillermo R. Chantre ◽  
Guillermo L. Calandrini ◽  
José L. González-Andújar
Keyword(s):  
Weed Management ◽  
Life Cycles ◽  
Integrated Weed Management ◽  
Future Research ◽  
Seed Removal ◽  
Weed Infestation ◽  
High Control ◽  
Weed Dynamics ◽  
The Impact

Population models are particularly helpful for understanding long-term changes in the weed dynamics associated with integrated weed management (IWM) strategies. IWM practices for controlling L. rigidum are of high importance, mainly due to its widespread resistance that precludes chemical control as a single management method. The objective of this contribution is to simulate different IWM scenarios with special emphasis on the impact of different levels of barley sowing densities on L. rigidum control. To this effect, a weed–crop population model for both L. rigidum and barley life cycles was developed. Our results point out: (i) the necessity of achieving high control efficiencies (>99%), (ii) that the increase of twice the standard sowing density of barley resulted in a reduction of 23.7% of the weed density, (iii) non-herbicide-based individual methods, such as delayed sowing and weed seed removal at harvest, proved to be inefficient for reducing drastically weed population, (iv) the implementation of at least three control tactics (seed removal, delay sowing and herbicides) is required for weed infestation eradication independently of the sowing rate, and (v) the effect of an increase in the sowing density is diluted as a more demanding weed control is reached. Future research should aim to disentangle the effect of different weed resistance levels on L. rigidum population dynamics and the required efficiencies for more sustainable IWM programs.

scholarly journals Dryland Food Security in Ethiopia: Current Status, Opportunities, and a Roadmap for the Future

2021 ◽  
Vol 13 (11) ◽  
pp. 6503
Author(s):  
Yu Peng ◽  
Hubert Hirwa ◽  
Qiuying Zhang ◽  
Guoqin Wang ◽  
Fadong Li
Keyword(s):  
Food Security ◽  
Current Status ◽  
Future Research ◽  
Systematic Research ◽  
Security Assessment ◽  
Security Issue ◽  
Sustainable Development Goal ◽  
Zero Hunger ◽  
The Impact

Given the impact of COVID-19 and the desert locust plague, the Ethiopian food security issue has once again received widespread attention. Its food crisis requires comprehensive and systematic research to achieve the United Nations Sustainable Development Goal of zero hunger. This review discusses the current situation and the causes of food security in Ethiopia. We focus on the challenges in the food security assessment field. The article lists seven typical causes of food insecurity and three roots of food security in Ethiopia. Long-term food security assessment and a comprehensive understanding and manageability for food security causes are considered as the main existing research challenges. Climate-resilient management, water management, and long-term ecosystem network monitoring and data mining are suggested as potential roadmap for future research.

scholarly journals Do it Helps SMEs Gain Better Performance: A Conceptual Analysis on RBV Theory

2014 ◽  
Vol 3 (5) ◽  
pp. 307-320
Author(s):  
Wan Nur Syahida Wan Ismail ◽  
Mohd Zulkifli Mokhtar ◽  
Azwadi Ali ◽  
Mohd Shaari Abdul Rahman
Keyword(s):  
Conceptual Analysis ◽  
Business Environment ◽  
The Body ◽  
Future Research ◽  
It Adoption ◽  
It Investment ◽  
It Resources ◽  
Performance Results ◽  
Value Of It ◽  
The Impact

Nowadays, competition is everywhere in the business environment. The survival of Small and medium-sized enterprises (SMEs) depend on their ability to take full advantage of the resources available. Prior research had identified that IT is an important resource to the success of the firms. However, despite the common consensus that IT influences firm’s performance, results of previous studies on the effect of IT resources on firm’s performance are often inconsistent. Given these inconsistent results, it is unclear whether any direct effect exists between IT resources in organizations and their firm’s performance. For that reason, several authors highlighted the need for more research to investigate the impact of IT adoption on the firm’s performance. In response to this, this conceptual paper attempts to analyze relevant literatures on whether IT investment would help firms gain better performance. Understanding whether and how IT has affected firm’s performance is an important research issue as it allows the firms to know the value of IT investment and whether such innovation is worth to be adopted. Grounding in RBV theory, this study concluded that the combination of IT assets and IT capabilities (IT infrastructure) provides competitive advantage to the firm. This study also suggested that SMEs that adopt IT would perform better than those that do not adopt IT. This conceptual analysis is hoped to consolidate the body of knowledge in the area and significant to the researchers as it directs to the hypotheses development for future research.

scholarly journals Lalabet Financial Analysis: Study of Islamic Economics at Micro Level

2021 ◽  
Vol 4 (1) ◽  
pp. 233-244
Author(s):  
Ainorrofiqie Ainorrofiqie ◽  
Umrotul Khasanah ◽  
Akhmad Djalaluddin
Keyword(s):  
Financial Management ◽  
Financial Analysis ◽  
Financial Statements ◽  
The Body ◽  
Short Term ◽  
The Family ◽  
Micro Level ◽  
The Impact ◽  
The Village

This research aims to explore the model of financial management tradition Lalabet in the village of Babbalan District Batuan Sumenep. This study is based on the fact that occurred in the community about the implementation of traditions carried out by the heirs to family members who died. Interpretative qualitative research is used and an in-depth understanding of a problem that occurs is emphasized more. Based on the results of this study, the financial management tradition Lalabet can be done based on accounting equations. The accounts contained in the accounting equation is not used in its entirety and are reported as are generally financial statements. In this case, the source of funds in carrying out Lalabet tradition is sourced from personal money, money and donations from the family, money from Muslimat, debt, and money or goods from Lalabet's proceeds. The impact is the onset of debt both short-term and long-term. While the expenditure is in the form of costs in taking care of the body, costs for tahlilan (petto'arean), pa'polo, nyatos, nyataon, nyaebu, mangaji, ngin-tangin, nyalenin mayyid, and ajege makam (kep-sekep).

A conceptual framework for using social innovation as an approach to local economic development

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Pontso Chomane ◽  
Maréve I. Biljohn
Keyword(s):  
Economic Development ◽  
Content Analysis ◽  
Conceptual Framework ◽  
South African ◽  
Social Innovation ◽  
Local Economic Development ◽  
Future Research ◽  
Research Approach ◽  
Antecedents And Consequences ◽  
The Impact

Background: Approaches such as social innovation were visible during many of the responses that public-sector organisations, civil society, communities, and the private sector collaboratively implemented to address the issues of unemployment and the impact of economic challenges during the global COVID-19 pandemic. The use of social innovation as an approach to local economic development by South African municipalities, however, reveals a research gap in terms of a conceptual framework for enabling such use.Aim: This article explores a conceptual framework for using social innovation as an approach to local economic development by South African municipalities.Setting: Conventional top-down local economic development approaches by South African municipalities have become inadequate for dealing with contemporary local economic development challenges. Such inadequacy calls for municipalities to rethink and adapt their approach to dealing with economic challenges and to developing and implementing their local economic development strategies.Methods: Through an interpretivist paradigm, the adopted methodology is underpinned by a qualitative research approach. Content analysis was performed of relevant research documents concerning social innovation and local economic development. From this content analysis, a conceptual framework was developed through an inductive approach.Results: The findings illustrate that the praxis for using this conceptual framework is vested in the interconnected nature of its attributes, antecedents, and consequences, which will contribute to the achievement of certain local economic development outcomes.Conclusion: This article suggests that a conceptual framework could contribute to stimulating future research concerning the phenomenon and can serve as an impetus and direction for research inquiry.

Prepaid debit cards and banking intention

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Sophia T. Anong ◽  
Aditi Routh
Keyword(s):  
Low Income ◽  
Transtheoretical Model ◽  
Customer Segmentation ◽  
Future Research ◽  
Bank Account ◽  
Content Type ◽  
Debit Card ◽  
The Impact ◽  
Debit Cards

PurposeThis study examines the relationship between prepaid debit card use and the intention to open a bank account within twelve months. The Transtheoretical Model (TTM) of Behavior Change helped to conceptualize one's stage in the process of changing from unbanked status if desired. The Theory of Planned Behavior (TPB) provided a framework to examine factors that influence banking intention. Prepaid debit card use is considered a social norm as it is a popular alternative to banking, and these accounts have increasingly mimicked bank account features in recent years.Design/methodology/approachThree in-depth focus group interviews with low-income respondents were first conducted in 2012, which revealed a prolific use of prepaid debit cards. Most participants had previous banking history, and despite negative experiences, some requested information about banking terms and “free” banking. These themes and previous studies informed a TPB-based biprobit model, which was estimated using data of an unbanked sample from 2013, 2015 and 2017 waves of the US Survey of Unbanked and Underbanked Households.FindingsThough there was banking interest in the focus groups, no significant empirical association was found between recent prepaid debit card use and banking intention. Going deeper with another sample, we found that current cardholders were equally likely to have become recently banked or to be long-term unbanked but less likely to be long-term banked. Also, factors such as a more recent relationship with banks, use of other alternative financial services for transactions and credit, smartphone ownership, and trust increase banking intention.Research limitations/implicationsThe main limitation of the study is the cross-section quantitative data. Future research may track banking status over time, particularly as financial technology (fintech) evolves with alternatives that may influence banks and customers to adapt.Practical implicationsTo compete with “leapfrog” fintech banking alternatives, bank managers should consider utilizing customer segmentation to target “at-risk” customers and former customers with products and terms tailored to meet their banking needs. Banks can also tailor digital products to capture markets in banking desserts through mobile phones.Originality/valueThis mixed-methods study is unique in that it builds on insights from earlier in-depth interviews with real unbanked groups to examine a trend in prepaid debit card use and the impact on banking interest.

The Emerging Corporate University System

2014 ◽  
pp. 92-113
Author(s):  
Mohammad Ayub Khan
Keyword(s):  
Strategic Alliances ◽  
Corporate University ◽  
Corporate Universities ◽  
Strategic Actions ◽  
High Quality Education ◽  
To Come ◽  
The Impact ◽  
Benefits And Costs

This chapter discusses the role of corporate universities in the field of higher education and the impact of the same on conventional or traditional universities and their corresponding business schools. This chapter also proposes some strategic actions for the traditional universities to pursue in order to maintain competitive advantage over the emerging corporate universities. Some of these strategic actions include promoting and developing strong long-term and multipurpose strategic alliances with the industry, government institutions, and community development groups. Collaborative strategies are better than competitive behavior in terms of long-term benefits and costs associated with each of these strategies. Moreover, being in the forefront of learning innovation and knowledge management combined with the provision of high quality education and trainings through innovative, diverse, and flexible academic and training programs will help the traditional universities to remain the main supplier of knowledge in times to come.

scholarly journals Arts-Based Interventions for Professionals in Caring Roles During and After Crisis: A Systematic Review of the Literature

2020 ◽  
Vol 11 ◽  
Author(s):  
Dominik Havsteen-Franklin ◽  
Megan Tjasink ◽  
Jacqueline Winter Kottler ◽  
Claire Grant ◽  
Veena Kumari
Keyword(s):  
Systematic Review ◽  
Future Research ◽  
Safe Place ◽  
Practice Elements ◽  
Qualitative Approaches ◽  
The Arts ◽  
Crisis Events ◽  
Wide Range ◽  
The Impact

Crisis events, such as the COVID-19 pandemic, can have a devastating effect on communities and the care professionals within them. Over recent years, arts-based interventions have helped in a wide range of crisis situations, being recommended to support the workforce during and after complex crisis but there has been no systematic review of the role of arts-based crisis interventions and whether there are cogent themes regarding practice elements and outcomes. We, therefore, conducted a systematic review to (i) define the arts-based change process used during and after crisis events, and (ii) explore the perceptions of intermediate and long-term mental health benefits of arts-based interventions for professionals in caring roles. Our search yielded six studies (all qualitative). All data were thematically aggregated and meta-synthesized, revealing seven practice elements (a safe place, focusing on strengths and protective factors, developing psychosocial competencies to support peers, emotional expression and processing, identifying and naming the impact of the crisis, using an integrative creative approach, and cultural and organizational sensitivity) applied across all six studies, as well as a range of intermediate and long-term benefits shared common features (adapting, growing, and recovering; using the community as a healing resource; reducing or preventing symptoms of stress or trauma reactions, psychophysiological homeostasis). The ways in which these studies were designed independently from one another and yet used the same practice elements in their crisis interventions indicates that there is comparability about how and why the arts-based practice elements are being used and to what effect. Our findings provide a sound basis and meaningful parameters for future research incorporating quantitative and qualitative approaches to firmly establish the effectiveness of art-based interventions, and how arts can support cultural sensitivity, acceptability and indicated outcomes, particularly those relating to stress and trauma during or following a crisis.

Sign in / Sign up

Export Citation Format

Share Document