scholarly journals Does the Tichi Haf dam construction affect dragonfly and damselfly (Odonata : Insecta) assemblages of the Boussellam watercourse (central north Algeria)? A preliminary study

2020 ◽  
Vol 30 (30) ◽  
pp. 37-47
Author(s):  
Abdelmadjid Chelli ◽  
Riadh Moulaï ◽  
Abdelhadi Djemai
Keyword(s):  
Nineteenth Century ◽  
New Species ◽  
Riparian Vegetation ◽  
Dam Construction ◽  
Water Parameters ◽  
Negative Effect ◽  
Preliminary Study ◽  
The Impact ◽  
North Algeria ◽  
Extant Population

This paper reports a pioneer study dealing with the impact of dam construction on Odonata communities, because no similar study has been undertaken in Algeria and the consequences of this artificialization on the Odonata assemblages have rarely been studied elsewhere. The main purpose of this study was to determine if the Tichi Haf dam is really having a negative effect on the Odonata communities living on the Boussellam watercourse, as there has hitherto been a lack of knowledge about its odonatofauna and aquatic microinvertebrates. This study showed that changes due to the construction of this dam, involving riparian vegetation, bank aspect and water parameters, affected the Odonata assemblages inhabiting both sides of the dam wall. The richness and abundance of dragonflies and damselflies found upstream from the dam is quite different from those found downstream from the dam. The survey also identified four new species for the Bejaia region. Among these, we report on the rediscovery of the critically endangered (EN) Calopteryx exul in Algeria, recorded in the nineteenth century and deemed to have been extinct after an absence of more than a century. The presence of an extant population C. exul in this location does not correspond to any historical locality reported for this species.

scholarly journals Faunistic patterns and diversity components of leech assemblages in karst springs of Montenegro

2019 ◽  
pp. 26 ◽  
Author(s):  
Nikola Marinković ◽  
Branko Karadžić ◽  
Vladimir Pešić ◽  
Bogić Gligorović ◽  
Clemens Grosser ◽  
...  
Keyword(s):  
New Species ◽  
Environmental Factors ◽  
Environmental Variables ◽  
Aquatic Vegetation ◽  
Abiotic Factors ◽  
Forward Selection ◽  
Karst Springs ◽  
Water Parameters ◽  
The Impact ◽  
Substrate Types

The aim of this study was to reveal faunistic and diversity patterns and to assess the effects of environmental factors on the differentiation of leech communities. This study covers investigations of 82 karst springs in Montenegro from 2009–2017. The communities were analyzed in respect to five wellspring types – caves, sublacustrine, limnocrene, rheo-limnocrene and rheocrene. The percentage of substrate types and aquatic vegetation cover was recorded alongside water parameters. In total, 18 leech species were identified, of which two were recently described as new species for science (Dina minuoculataGrosser, Moritz and Pešić, 2007 andGlossiphonia balcanicaGrosser and Pešić, 2016).K-means clustering was used to classify leech assemblages into three homogenous groups. The patterns of leech communities and the components of bothalphaandbetadiversity were examined in identified groups of assemblages. The significance of environmental factors and the impact of selected factors were assessed through forward selection analysis, CCA and RDA. Our results indicate that the type of spring and the environmental variables, as well as the combination of biotic and abiotic factors in a microhabitat dictate the distribution of leeches.

Reading Stratigraphical Woodscapes in Thomas Hardy's The Woodlanders

2017 ◽  
Vol 7 (3) ◽  
pp. 210-223
Author(s):  
Anna Burton
Keyword(s):  
Nineteenth Century ◽  
Local History ◽  
Space And Time ◽  
Eighteenth And Nineteenth Centuries ◽  
Geological Work ◽  
Gideon Mantell ◽  
Modes Of Thought ◽  
The Impact ◽  
Visual Cultures

In The Woodlanders (1887), Hardy uses the texture of Hintock woodlands as more than description: it is a terrain of personal association and local history, a text to be negotiated in order to comprehend the narrative trajectory. However, upon closer analysis of these arboreal environs, it is evident that these woodscapes are simultaneously self-contained and multi-layered in space and time. This essay proposes that through this complex topographical construction, Hardy invites the reader to read this text within a physical and notional stratigraphical framework. This framework shares similarities with William Gilpin's picturesque viewpoint and the geological work of Gideon Mantell: two modes of vision that changed the observation of landscape in the eighteenth and nineteenth centuries. This comparative discussion at once reviews the perception of the arboreal prospect in nineteenth-century literary and visual cultures, and also questions the impact of these modes of thought on the woodscapes of The Woodlanders.

Introduction

2017 ◽  
Author(s):  
George E. Dutton
Keyword(s):  
Nineteenth Century ◽  
Vantage Point ◽  
15Th Century ◽  
The World ◽  
Catholic Mission ◽  
Historical Moment ◽  
The Impact ◽  
Main Figure

This chapter introduces the book’s main figure and situates him within the historical moment from which he emerges. It shows the degree to which global geographies shaped the European Catholic mission project. It describes the impact of the Padroado system that divided the world for evangelism between the Spanish and Portuguese crowns in the 15th century. It also argues that European clerics were drawing lines on Asian lands even before colonial regimes were established in the nineteenth century, suggesting that these earlier mapping projects were also extremely significant in shaping the lives of people in Asia. I argue for the value of telling this story from the vantage point of a Vietnamese Catholic, and thus restoring agency to a population often obscured by the lives of European missionaries.

The Transnational Women's Rights Movement and the World Economy

2020 ◽  
Vol 6 (2) ◽  
pp. 145-173 ◽  
Author(s):  
Heidi E. Rademacher
Keyword(s):  
Women's Rights ◽  
Small Body ◽  
World System ◽  
World Society ◽  
Women’S Rights ◽  
Social Movement Organizations ◽  
Global Movement ◽  
Negative Effect ◽  
Society Perspective ◽  
The Impact

Promoting the ratification of the Convention on the Elimination of All Forms of Discrimination against Women (CEDAW) was a key objective of the transnational women's movement of the 1980s and 1990s. Yet, few studies examine what factors contribute to ratification. The small body of literature on this topic comes from a world-society perspective, which suggests that CEDAW represented a global shift toward women's rights and that ratification increased as international NGOs proliferated. However, this framing fails to consider whether diffusion varies in a stratified world-system. I combine world-society and world-systems approaches, adding to the literature by examining the impact of women's and human rights transnational social movement organizations on CEDAW ratification at varied world-system positions. The findings illustrate the complex strengths and limitations of a global movement, with such organizations having a negative effect on ratification among core nations, a positive effect in the semiperiphery, and no effect among periphery nations. This suggests that the impact of mobilization was neither a universal application of global scripts nor simply representative of the broad domination of core nations, but a complex and diverse result of civil society actors embedded in a politically stratified world.

Liszt at the Piano: The Impact of Iconography on mid-Nineteenth Century Musicology

2014 ◽  
Vol 55 (1-2) ◽  
pp. 131-144
Author(s):  
Suzanne Marie Francis
Keyword(s):  
Nineteenth Century ◽  
Music History ◽  
Collective Identities ◽  
Cultural Contexts ◽  
Maximum Benefit ◽  
Starting Point ◽  
The Social ◽  
Iconic Status ◽  
The Impact

By the time of his death in 1827, the image of Beethoven as we recognise him today was firmly fixed in the minds of his contemporaries, and the career of Liszt was beginning to flower into that of the virtuosic performer he would be recognised as by the end of the 1830s. By analysing the seminal artwork Liszt at the Piano of 1840 by Josef Danhauser, we can see how a seemingly unremarkable head-and-shoulders bust of Beethoven in fact holds the key to unlocking the layers of commentary on both Liszt and Beethoven beneath the surface of the image. Taking the analysis by Alessandra Comini as a starting point, this paper will look deeper into the subtle connections discernible between the protagonists of the picture. These reveal how the collective identities of the artist and his painted assembly contribute directly to Beethoven’s already iconic status within music history around 1840 and reflect the reception of Liszt at this time. Set against the background of Romanticism predominant in the social and cultural contexts of the mid 1800s, it becomes apparent that it is no longer enough to look at a picture of a composer or performer in isolation to understand its impact on the construction of an overall identity. Each image must be viewed in relation to those that preceded and came after it to gain the maximum benefit from what it can tell us.

The Impact of Competitive Quasi-Market on Service Delivery in Benue State University, Makurdi Nigeria

GIS Business ◽  
2019 ◽  
Vol 14 (4) ◽  
pp. 85-98
Author(s):  
Idoko Peter
Keyword(s):  
Service Delivery ◽  
A Priori ◽  
Least Square ◽  
Secondary Source ◽  
State University ◽  
Ordinary Least Square ◽  
Negative Effect ◽  
The Impact ◽  
The Relationship

This research the impact of competitive quasi market on service delivery in Benue State University, Makurdi Nigeria. Both primary and secondary source of data and information were used for the study and questionnaire was used to extract information from the purposively selected respondents. The population for this study is one hundred and seventy three (173) administrative staff of Benue State University selected at random. The statistical tools employed was the classical ordinary least square (OLS) and the probability value of the estimates was used to tests hypotheses of the study. The result of the study indicates that a positive relationship exist between Competitive quasi marketing in Benue State University, Makurdi Nigeria (CQM) and Transparency in the service delivery (TRSP) and the relationship is statistically significant (p<0.05). Competitive quasi marketing (CQM) has a negative effect on Observe Competence in Benue State University, Makurdi Nigeria (OBCP) and the relationship is not statistically significant (p>0.05). Competitive quasi marketing (CQM) has a positive effect on Innovation in Benue State University, Makurdi Nigeria (INVO) and the relationship is statistically significant (p<0.05) and in line with a priori expectation. This means that a unit increases in Competitive quasi marketing (CQM) will result to a corresponding increase in innovation in Benue State University, Makurdi Nigeria (INVO) by a margin of 22.5%. It was concluded that government monopoly in the provision of certain types of services has greatly affected the quality of service experience in the institution. It was recommended among others that the stakeholders in the market has to be transparent so that the system will be productive to serve the society effectively

Preliminary Study of the Impact of Critical Success Factors on Project Success in Pakistan

2014 ◽  
Vol 1 (4) ◽  
pp. 9-13 ◽  
Author(s):  
Aqeel Ahmed ◽  
Muhammad Sehail Younis
Keyword(s):  
Critical Success Factors ◽  
Success Factors ◽  
Project Success ◽  
Workforce Planning ◽  
Survey Instrument ◽  
Past Performance ◽  
Cronbach Alpha ◽  
Critical Success ◽  
Preliminary Study ◽  
The Impact

This preliminary study attempts to link among the critical success factors on overall project success in public sector organizations in Pakistan.  In this study it’s reflected that major critical success factors (soundness of Business & workforce, planning & control, quality performance and past performance) can enhance the success of the project in Pakistan.  The purpose of this preliminary study was to verify the reliability of the survey instrument which has been used in European countries. It was found that the planning & control was the highest Cronbach Alpha value, while the ranged for each constructs in the present study from 0.68 to 0.88.  Therefore, based on the Cronbach alpha value score, the proposed survey instrument has fulfilled the basic requirement of a valid instrument.

Problems of Implementation of an Import Substitution Policy in the Oil Industry

2019 ◽  
pp. 50-57
Author(s):  
Yu. V. Vertakova ◽  
A. S. Evtyukhin
Keyword(s):  
Import Substitution ◽  
Oil Industry ◽  
Investment Climate ◽  
Scientific Publications ◽  
Stage Of Development ◽  
Current Economic Situation ◽  
Negative Effect ◽  
Substitution Policy ◽  
Investment Process ◽  
The Impact

The presented study addresses the issues of implementation of an import substitution policy in the Russian oil industry. Support of domestic production is a key objective specified in the message of the President of the Russian Federation in 2019. In light of the current economic situation and considering the importance of the oil industry for the Russian economy, an import substitution policy could help achieve the objective set by the President.Aim. The study aims to identify the problems and ways of implementation of an import substitution policy in the Russian oil industry.Tasks. The authors analyze scientific publications on import substitution and the state of the Russian oil industry at the current stage of development; determine the directions and fundamental trends in the development of the oil industry; identify obstacles that hinder the implementation of an import substitution policy in the oil industry; describe conditions that facilitate the development of the  investment process in the oil industry; propose comprehensive methods and ways to intensify investments and optimize costs for enterprises in the oil industry.Methods. This study uses general scientific methods of cognition, comparative and statistical analysis to identify problems in the implementation of an import substitution policy in the oil industry.Results. Examination of the current state and development prospects of the oil industry allows the authors to identify obstacles to the development of import substitution. The study shows their impact on the potential of import substitution, which has a negative effect on the prospects of intensification of investment processes, and proposes comprehensive methods and mechanisms that could neutralize the impact of the identified obstacles, thus facilitating the formation of a positive investment climate. Conclusions. Investment climate is shown to have a decisive impact on the potential of import substitution in the Russian oil industry, and ways of overcoming negative trends in the development of the oil industry are proposed.

Others' participation rate influences an individual's charitable behavior: Others' similarity as a moderator

2017 ◽  
Vol 45 (10) ◽  
pp. 1607-1618 ◽  
Author(s):  
Seung Yun Lee ◽  
Sunho Jung ◽  
Sangdo Oh ◽  
Seong Hoon Park
Keyword(s):  
Undergraduate Students ◽  
Participation Rate ◽  
High Rate ◽  
Charitable Behavior ◽  
High Participation ◽  
Negative Effect ◽  
The Impact ◽  
And Diffusion ◽  
High Participation Rate ◽  
Diffusion Of Responsibility

We proposed that a moderator, others' similarity, would determine the impact of high participation rates of others on an individual's charitable behavior, and aimed to show that this moderator would work through the diffusion of responsibility motive. Participants (N = 152 undergraduate students) completed measures of charitable behavior and diffusion of responsibility, after being assigned to 1 of 2 conditions where a set percentage of other students (manipulated as either similar undergraduate students or dissimilar graduate students) were stated to have already donated to a charitable campaign (high contribution condition = 70% participation, low contribution condition = 30% participation). Our results showed that the high participation rate of others increased an individual's charitable behavior when the others in question were similar to that individual, but not when the others were dissimilar. In addition, the high rate of participation by others increased the diffusion of responsibility motive when the others in question were dissimilar to that individual, leading to a negative effect on that individual's charitable behavior.

scholarly journals Effect of Competition and Climatic Conditions on the Growth of Beech in the Mixed Pine Beech Stand: Lithuanian Case Study

2020 ◽  
Vol 3 (1) ◽  
pp. 49
Author(s):  
Edgaras Linkevičius ◽  
Gerda Junevičiūtė
Keyword(s):  
Intraspecific Competition ◽  
Tree Species ◽  
Forest Growth ◽  
Competition Effect ◽  
Diameter Increment ◽  
Cart Analysis ◽  
Crown Width ◽  
Beech Stand ◽  
Negative Effect ◽  
The Impact

Climate change and warming will potentially have profound effects on forest growth and yield, especially for pure stands in the near future. Thus, increased attention has been paid to mixed stands, e.g., pine and beech mixtures. However, the interaction of tree species growing in mixtures still remains unknown. Thus, the aim of this study was to investigate the impact of the interspecific and intraspecific competition to diameter, height, and crown width of pine and beech trees growing in mixtures, as well as to evaluate the impact of climatic indicators to the beech radial diameter increment. The data was collected in 2017 at the mixed mature pine beech double layer stand, located in the western part of Lithuania. The sample plot of 1.2 hectare was established and tree species, diameter at the breast height, tree height, height-to-crown base, height-to-crown width, and position were measured for all 836 trees. Additionally, a representative sample of radial diameter increments were estimated only for the beech trees by taking out core discs at the height of 1 m when the stand was partially cut. Competition analysis was based on the distance-dependent competition index, which was further based on crown parameters. Climatic effect was evaluated using classification and regression tree (CART) analysis. We found almost no interspecific competition effect to diameter, height, or crown width for both tree species growing in the first layer. However, it had an effect on beeches growing in the second layer. The intraspecific competition effect was important for pine and beech trees, showing a negative effect for both of them. Our results show the possible coexistence of these tree species due to niche differentiation. An analysis of climatic indicators from 1991–2005 revealed that precipitation from February–May of the current vegetation year and mean temperatures from July to September expressed radial diameter increment effects for beech trees. Low temperatures during March and April, as well as high precipitation during January, had a negative effect on beech radial increments. From 2006–2016, the highest effect on radial diameter increments was the mean temperatures from July to September, as well as the precipitation in January of the current year. From 1991–2016, the highest effect on radial diameter increments was the temperature from July to September 1991–2016 and the precipitation in June 1991–2016. Generally, cool temperatures and higher precipitation in June had a positive effect on beech radial increments. Therefore, our results show a sensitivity to high temperatures and droughts during summer amid Lithuanian’s growth conditions.

Sign in / Sign up

Export Citation Format

Share Document