scholarly journals Investigation of Ecosystem Health of International Meighan Wetland

2021 ◽  
Author(s):  
Bahman Shams Esfand Abad
Keyword(s):  
Ecosystem Health ◽  
Northwestern Part ◽  
Benthic Organisms ◽  
Wetland Ecosystem ◽  
Quality Indices ◽  
Outlet Channel ◽  
Nickel Zinc ◽  
The Status ◽  
Copper Zinc ◽  
High Level

Abstract Background: The aim of this study was to evaluate the ecosystem health of Meighan Wetland of Arak. Methods: To evaluate the Meighan Wetland of Arak, the status of benthic organisms and other parameters, sampling of sediments of the wetland floor was performed at 10 points of the wetland and at 5 replications at each point. Heavy metal pollution, biological, and water quality indices were also evaluated. Then, the map of ecosystem health was prepared. Results: The results showed that except for the nickel, zinc and lead, for other elements and compounds (EC, Na, Cl, Mg, Ca, HCO3, SO4 and TDS), the minimum and maximum values ​​belonged to stations 3 and 6, respectively. In the case of copper, zinc and lead, the lowest concentration was seen in the northwestern part of the wetland and the highest in the western and southeastern parts of the wetland. Conclusion: The high amount of the mentioned elements and compounds in station 6 may be due to the activity of a factory that produces sodium sulfate in the northern part of the wetland, which causes changes in the wetland ecosystem by removing sediments from the wetland floor. The high level of the copper, zinc and lead in the southern part of the wetland can be due to urban and domestic wastewaters that enter the wetland from the southwest of the wetland through the outlet channel of Arak refinery.

scholarly journals The Health Evaluation of Wetland Ecosystem in the Yangtze River Economic Zone Based on Remote Sensing——A Case Study of Yunnan Wetland

2021 ◽  
Vol 276 ◽  
pp. 01001
Author(s):  
Haonan Wang ◽  
Fan Yu ◽  
Jun Li
Keyword(s):  
Health Status ◽  
Evaluation System ◽  
Ecosystem Health ◽  
Comprehensive Evaluation ◽  
Rate Of Change ◽  
Evaluation Index ◽  
Health Evaluation ◽  
Wetland Ecosystem ◽  
Evaluation Indexes ◽  
The Status

In order to provide a scientific basis for the development of the Yunnan wetland ecosystem, we construct a wetland ecosystem health evaluation system with 15 evaluation indexes selected from three aspects including pressure, status and response based on PSR mathematical model. Analytic Hierarchy Process(AHP) was used to determine the weight of indicators and the Yunnan wetland ecosystem was divided into “the five health status” of “health, sub-health, fragility, illness, and scurviness”, which are used to analyze and evaluate the health status of it through a comprehensive evaluation index. The results show that the comprehensive evaluation index of ecosystem health status of Yunnan wetland is 0.5524 in 2017, locating in the grade of “fragility” and is close to the status of “sub-healthy”; Among the 3 levels of pressure, state, and response, the pressure and state are locating in the grade of “fragility” and the response is close to the status of “health”. Among the 15 evaluation indexes, the rate of change of wetland area, the area of water body, the hydrological regulation and the wetland management level are the most important factors affecting the ecosystem health of Yunnan wetland.

scholarly journals Assessing the status of endangered invertebrates from the ancient Lake Ohrid: The gastropod Chilopyrgula sturanyi

2012 ◽  
Vol 64 (2) ◽  
pp. 647-650 ◽  
Author(s):  
Biljana Budzakoska-Gjoreska ◽  
S. Trajanovski ◽  
Sonja Trajanovska
Keyword(s):  
Biological Diversity ◽  
Balkan Peninsula ◽  
Maximum Density ◽  
Northwestern Part ◽  
Ancient Lake ◽  
Lake Ohrid ◽  
Main Subject ◽  
Gastropod Species ◽  
The Status ◽  
High Level

Lake Ohrid is the oldest and deepest lake on the Balkan Peninsula and one of the five oldest lakes in the world. Two of the most striking attributes of the species of the Lake?s fauna, especially the fauna of gastropods, are the high level of biological diversity as well as a high percentage of endemism. The main subject of interest in our research was to follow the distribution and density of the endemic gastropod species Chilopyrgula sturanyi. For this purpose different depth points of the transect Hydrobiological Institute-Radozda as well as other littoral points on the northwestern part of Lake Ohrid, were investigated. The results showed maximum density in the population of Chilopyrgula sturanyi in the muddy lakebed covered by Chara tomentosa. The minimum density in population was recorded on the lakebed with gravel. Specimens of Chilopyrgula sturanyi were not recorded at the depth of 50 m, where the lakebed is covered by a sandy-muddy substrate.

Methyl mercury in the dutch rhine delta

1994 ◽  
Vol 30 (10) ◽  
pp. 213-219 ◽  
Author(s):  
Hendrik Pieters ◽  
Victor Geuke
Keyword(s):  
Suspended Matter ◽  
Methyl Mercury ◽  
Mercury Contamination ◽  
Benthic Organisms ◽  
Considerable Decrease ◽  
Continuous Sedimentation ◽  
Highly Correlated ◽  
High Level ◽  
Almost All

Samples of yellow eel from various locations in the Dutch Rhine area have been analyzed for trend monitoring of mercury since 1977. In the western Rhine delta mercury levels in eels have hardly changed since the seventies, whereas in the eastern part of the Dutch Rhine area a considerable decrease of mercury concentrations in eel has occurred. Because of continuous sedimentation of contaminated suspended matter transported from upstream regions, accumulation rates and concentrations of mercury in eel in the western Rhine delta remained at a relatively high level. Analyses of methyl mercury in biota have been performed to elucidate the role of methyl mercury in the mercury contamination of the Dutch Rhine ecosystem. Low percentages of methyl mercury were observed in zooplankton (3 to 35%). In benthic organisms (mussels) percentages of methyl mercury ranged from 30 to 57%, while in fish species and liver of aquatic top predator birds almost all the mercury was present in the form of methyl mercury (> 80%). During the period 1970-1990 mercury concentrations of suspended matter in the eastern Rhine delta have drastically decreased. These concentrations seemed to be highly correlated with mercury concentrations of eel (R = 0.84). The consequences of this relation are discussed.

Deep AI Enabled Ubiquitous Wireless Sensing

2021 ◽  
Vol 54 (2) ◽  
pp. 1-35
Author(s):  
Chenning Li ◽  
Zhichao Cao ◽  
Yunhao Liu
Keyword(s):  
Great Success ◽  
Wireless Sensing ◽  
Ubiquitous Sensing ◽  
Sensing Systems ◽  
The Status ◽  
Sensing Model ◽  
High Level ◽  
Traditional Approaches ◽  
The Internet Of Things ◽  
High Level Feature

With the development of the Internet of Things (IoT), many kinds of wireless signals (e.g., Wi-Fi, LoRa, RFID) are filling our living and working spaces nowadays. Beyond communication, wireless signals can sense the status of surrounding objects, known as wireless sensing , with their reflection, scattering, and refraction while propagating in space. In the last decade, many sophisticated wireless sensing techniques and systems were widely studied for various applications (e.g., gesture recognition, localization, and object imaging). Recently, deep Artificial Intelligence (AI), also known as Deep Learning (DL), has shown great success in computer vision. And some works have initially proved that deep AI can benefit wireless sensing as well, leading to a brand-new step toward ubiquitous sensing. In this survey, we focus on the evolution of wireless sensing enhanced by deep AI techniques. We first present a general workflow of Wireless Sensing Systems (WSSs) which consists of signal pre-processing, high-level feature, and sensing model formulation. For each module, existing deep AI-based techniques are summarized, further compared with traditional approaches. Then, we provide a view of issues and challenges induced by combining deep AI and wireless sensing together. Finally, we discuss the future trends of deep AI to enable ubiquitous wireless sensing.

Conspicuous consumption of luxury experiences: an experimental investigation of status perceptions on social media

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Carolin Siepmann ◽  
Lisa Carola Holthoff ◽  
Pascal Kowalczuk
Keyword(s):  
Social Media ◽  
Personal Characteristics ◽  
Conspicuous Consumption ◽  
Individual Characteristics ◽  
Luxury Goods ◽  
Content Type ◽  
The Status ◽  
Self Actualization ◽  
The Individual ◽  
High Level

Purpose As luxury goods are losing their importance for demonstrating status, wealth or power to others, individuals are searching for alternative status symbols. Recently, individuals have increasingly used conspicuous consumption and displays of experiences on social media to obtain affirmation. This study aims to analyze the effects of luxury and nonluxury experiences, as well as traditional luxury goods on status- and nonstatus-related dimensions. Design/methodology/approach After presenting the theoretical foundation, the authors conduct a study with 599 participants to compare status perceptions elicited by the conspicuous consumption of luxury goods, luxury experiences and nonluxury experiences. The authors investigate whether experiences that are visibly consumed on Instagram are replacing traditional luxury goods as the most important status symbols. Furthermore, the authors examine the effects of the content shown on nonstatus-related dimensions and analyze whether status perceptions differ between female and male social media communicators. Finally, the authors analyze how personal characteristics (self-esteem, self-actualization and materialism) influence the status perceptions of others on social media. Findings The results show that luxury goods are still the most important means of displaying status. However, especially for women, luxury experiences are also associated with a high level of social status. Thus, the results imply important gender differences in the perceptions of status- and nonstatus-related dimensions. Furthermore, the findings indicate that, in particular, the individual characteristics of self-actualization and materialism affect status perceptions depending on the posted content. Originality/value While the research has already considered some alternative forms of conspicuous consumption, little attention has been given to experiences as status symbols. However, with their growing importance as substitutes for luxury goods and the rise of social media, the desire to conspicuously consume experiences is increasing. The authors address this gap in the literature by focusing on the conspicuous display of luxury and nonluxury experiences on social media.

MANAGERS CAN ALSO RESIST CHANGES — CAN WE DEAL WITH THIS? AN EXPLORATORY STUDY FROM JAPAN

2013 ◽  
Vol 21 (04) ◽  
pp. 447-493
Author(s):  
BALÁZS VASZKUN
Keyword(s):  
Traditional Values ◽  
Traditional Management ◽  
Japanese Firms ◽  
Work Routines ◽  
The Status ◽  
Major Reform ◽  
Mass Recruitment ◽  
Dominant Coalition ◽  
High Level ◽  
Shed Light

Japan is going through a transformation, yet it is difficult to judge which model should be chosen as a direction to go in with corporate reforms. Badly needed initiatives seeking to replace outdated managerial habits by new best practices in Japanese firms are being jeopardized by organizational members whose goal is to maintain the status quo — in terms of both political power and everyday work routines. Yet managerial habits and behaviours need to change if Japanese firms are to be entrepreneurial and innovative. According to institutionalism, blocking new initiatives is normal, and societal support is needed for major reform attempts. The focus of this paper is to shed light on how society in Japan is divided when it comes to large firms altering practices with which they have been traditionally managed. Our proposition is that complex, multi-element reform packages — having a potentially opposing dominant coalition, which is the case of Japan — ought to be implemented following a well-defined, prioritized listing of elements. After examining an attitude survey carried out in Japan, our findings revealed two clusters with a particularly high level of support for traditional management. Moreover, out of the two, one appeared to be extremely passive and resistant to any sort of change. In order to fight general resistance and reform outdated practices, our survey shows that Japan could move further towards a system compensating performance rather than seniority and giving more chance to women, discarding mass-recruitment, slow promotion whilst also maintaining the most deeply-rooted traditional values such as job security, paternalism or harmony in corporate life.

scholarly journals Assessment of Wetland Ecosystem Health in the Yangtze and Amazon River Basins

2017 ◽  
Vol 6 (3) ◽  
pp. 81 ◽  
Author(s):  
Rui Sun ◽  
Pingping Yao ◽  
Wen Wang ◽  
Bing Yue ◽  
Gang Liu
Keyword(s):  
Ecosystem Health ◽  
River Basins ◽  
Amazon River ◽  
Wetland Ecosystem

scholarly journals Linguistic culture and politics in France

enadakultura ◽  
2021 ◽  
Author(s):  
Natalia Revishvili
Keyword(s):  
French Revolution ◽  
French Language ◽  
National Politics ◽  
The Public ◽  
French Academy ◽  
Long Period ◽  
The Status ◽  
Classical Language ◽  
High Level ◽  
Public Instruction

The rise of the French national politics was taking place simultaneously with the rise of the French power and territories in Europe. The first evidence of the emergence of the French language distinguished from Latin is the text of the ‘’French’’ version of the 842-nd Strasbourg Oath. France is an example of how ideas and myths about a language become ideologies and how it forms a part of a language policy, along with language planning and language practices.The French language was being established over a long period of time. From the 17th century onwards, increasing attention was paid to this issue. It is especially interesting to establish a high level of French spelling, the expression of good spelling in the French language has become an object of social values. On October 19 and 20, 1794, the Public Instruction Committee introduced a new project to teach French to all. French became the language of writing before it set foot in education.The 17-th and 18-th centuries became a period of legalization of the French language. The greatest philosophers and writers of this time legalized the French language in poetry and fiction. At the same time, it became the language of scientific writing. French gained the status of the most brilliant language in Europe over the last two centuries through the French Academy and the French Revolution. It was a new ‘’classical“ language.

A Sweeping Internal Review

The Last Card ◽  
2019 ◽  
pp. 130-152
Keyword(s):  
Review Process ◽  
Policy Recommendation ◽  
Deliberative Process ◽  
Review Group ◽  
Internal Review ◽  
New Strategy ◽  
The Status ◽  
High Level

This chapter details the review process mentioned in the previous chapter. It highlights a series of high-level interagency meetings as the members of the review group debated the status of US efforts in Iraq and began formally to consider alternatives. By Thanksgiving of 2006, the review group was wrapping up its work, albeit without a clear policy recommendation, and divergent reviews remained among Bush's advisors. In retrospect, some of the president's advisors now believe that Bush himself was already leaning toward increasing US forces in Iraq as part of a new strategy. At the time, however, many thought the president had not made up his mind and that the deliberative process had simply deadlocked.

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