scholarly journals Role of Nanomaterials in the Treatment of Wastewater: A Review

Water ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 495 ◽  
Author(s):  
Asim Ali Yaqoob ◽  
Tabassum Parveen ◽  
Khalid Umar ◽  
Mohamad Nasir Mohamad Ibrahim
Keyword(s):  
Wastewater Treatment ◽  
Low Cost ◽  
Review Article ◽  
Polluted Water ◽  
Flowing Water ◽  
Health Issues ◽  
Modern Equipment ◽  
The World ◽  
Different Types

Water is an essential part of life and its availability is important for all living creatures. On the other side, the world is suffering from a major problem of drinking water. There are several gases, microorganisms and other toxins (chemicals and heavy metals) added into water during rain, flowing water, etc. which is responsible for water pollution. This review article describes various applications of nanomaterial in removing different types of impurities from polluted water. There are various kinds of nanomaterials, which carried huge potential to treat polluted water (containing metal toxin substance, different organic and inorganic impurities) very effectively due to their unique properties like greater surface area, able to work at low concentration, etc. The nanostructured catalytic membranes, nanosorbents and nanophotocatalyst based approaches to remove pollutants from wastewater are eco-friendly and efficient, but they require more energy, more investment in order to purify the wastewater. There are many challenges and issues of wastewater treatment. Some precautions are also required to keep away from ecological and health issues. New modern equipment for wastewater treatment should be flexible, low cost and efficient for the commercialization purpose.

scholarly journals Diffuse Water Pollution from Agriculture: A Review of Nature-Based Solutions for Nitrogen Removal and Recovery

Water ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 1893
Author(s):  
Giuseppe Mancuso ◽  
Grazia Federica Bencresciuto ◽  
Stevo Lavrnić ◽  
Attilio Toscano
Keyword(s):  
Water Pollution ◽  
Nitrogen Removal ◽  
Plant Uptake ◽  
Environmental Issues ◽  
Polluted Water ◽  
Health Issues ◽  
Agricultural Wastewater ◽  
Research Activities ◽  
Wide Range ◽  
Different Types

The implementation of nature-based solutions (NBSs) can be a suitable and sustainable approach to coping with environmental issues related to diffuse water pollution from agriculture. NBSs exploit natural mitigation processes that can promote the removal of different contaminants from agricultural wastewater, and they can also enable the recovery of otherwise lost resources (i.e., nutrients). Among these, nitrogen impacts different ecosystems, resulting in serious environmental and human health issues. Recent research activities have investigated the capability of NBS to remove nitrogen from polluted water. However, the regulating mechanisms for nitrogen removal can be complex, since a wide range of decontamination pathways, such as plant uptake, microbial degradation, substrate adsorption and filtration, precipitation, sedimentation, and volatilization, can be involved. Investigating these processes is beneficial for the enhancement of the performance of NBSs. The present study provides a comprehensive review of factors that can influence nitrogen removal in different types of NBSs, and the possible strategies for nitrogen recovery that have been reported in the literature.

Study of Mental Disorder Prediction Model approaches its issues and Challenges

2021 ◽  
Vol 23 (07) ◽  
pp. 831-840
Author(s):  
Avani S Bhuva ◽  
◽  
Dr. Dhirendra Mishra ◽  
Keyword(s):  
Mental Disorders ◽  
Mental Disorder ◽  
Health Issues ◽  
Human Beings ◽  
Major Health ◽  
The World ◽  
Different Types ◽  
Prediction Systems ◽  
Voice Modulation ◽  
Society Today

Mental disorder is becoming one of the major health issues in society today. (WHO) depression will be the leading mental disorder all over the world by 2030. The timely prediction of such disorders is very essential for maintaining the health of human beings. These mental disorders are associated with different symptoms, some of these symptoms are visible in the form of facial expressions, gestures, change in voice modulation, etc. and some of them even cannot be noticed by naked eyes. Therefore, it is highly important to collect appropriate verbal and non-verbal symptom details about any individual along with using best-suited algorithms for accurate prediction using information technology. This paper explores different types of such symptoms associated with different types of mental disorders, their causes, and existing prediction-based solutions. The paper further presents the critical analysis of these aspects and proposes usages of biometrics-based traits for building better prediction systems for mental disorders.

scholarly journals Oxidative stress in animals: a pathophysiologist's view

2020 ◽  
Vol 2020 (4) ◽  
pp. 10-18
Author(s):  
Dmitriy Gildikov
Keyword(s):  
Oxidative Stress ◽  
Reactive Oxygen Species ◽  
Antioxidant System ◽  
Review Article ◽  
Publication Activity ◽  
Pathophysiological Mechanism ◽  
Oxygen Species ◽  
The World ◽  
Intracellular Oxidative Stress

In the review article, from the modern standpoint, oxidative stress is considered as a universal pathophysiological mechanism of the vast majority of diseases in animals. A brief review of the publication activity in the world on this topic; the significance of reactive oxygen species in the physiology and development of intracellular oxidative stress, the role of etiological factors that initiate their hyperproduction are presented, as well the methods of detecting oxidative stress are characterizited. General concepts of the antioxidant system of the animal body are examined, and the pathophysiological targets of oxidative stress in animals are generalized.

Between Isolation and Assimilation

2021 ◽  
pp. 1-15
Author(s):  
Nick Williams
Keyword(s):  
Economic Activity ◽  
Institutional Environment ◽  
Home Country ◽  
Negative Impact ◽  
Policy Actors ◽  
The World ◽  
Different Types ◽  
Negative Perceptions ◽  
At Home

The chapter introduces key debates related to the role of the diaspora in their home economies, particularly the role that they can play as returnee entrepreneurs. With increased movements of people around the world, the role of transnational economic activity is becoming ever more significant. The chapter shows that the diaspora can be caught between isolation and assimilation. They can be isolated because of their years living abroad, as well as their negative perceptions of the institutional environment at home. Yet many of them also wish to become more assimilated and have an emotional desire to help their home country. Many stay away and do not invest. Those who return later can seek to avoid the negative impact of barriers to entrepreneurship, and can for example avoid government engagement activities as they mistrust policy actors’ intentions. The chapter sets out the implications of these different types of engagement for homeland economies.

Women’s March Minnesota on Facebook: Effects of social connection on different types of collective action

2019 ◽  
Vol 22 (10) ◽  
pp. 1785-1807 ◽  
Author(s):  
Simin Michelle Chen
Keyword(s):  
Social Media ◽  
Collective Action ◽  
Practical Implication ◽  
Low Cost ◽  
Theoretical Implication ◽  
Tie Strength ◽  
Different Types ◽  
Intention To Participate ◽  
Political Actions

Scholars have long debated the efficacy of social media in facilitating offline collective action. This research seeks to fill a gap in that literature by examining the role of social ties in determining intention to participate in different types of collective action. Survey findings show that aspects of tie strength—reciprocity, duration, and affect—have different impact on intention to participate in high- and low-cost political actions. Findings from this study have theoretical implication for the field as well as practical implication for social movement organizers seeking to mobilize supporters using social media.

From state socialism to capitalism: The role of class and the world system

2006 ◽  
Vol 39 (2) ◽  
pp. 135-152 ◽  
Author(s):  
David Lane
Keyword(s):  
World System ◽  
Political Elite ◽  
Modern World ◽  
State Socialism ◽  
Social Actors ◽  
The World ◽  
Different Types ◽  
Transition To Capitalism ◽  
State Socialist

While theories of global capitalism have added a new dimension to our understanding of the dynamics of the modern world, a ‘globalisation’ approach to the transformation of the state socialist societies is relatively underdeveloped. This paper studies the role of international and global factors under state socialism and the world system in the pre-1989 period. The paper considers traditional Marxist approaches to the transition to capitalism and criticises the model of state capitalism as well as the world system approach. In contrast, social actors (the ‘acquisition’ and ‘administrative’ social strata and the global political elite)are identified as playing a major role in the fall of state socialism, and were a nascent capitalist class. The transformation of state socialism, it is contended, had the character of a revolution rather than a shift between different types of capitalism.

scholarly journals Translation Policies in Legal and Institutional Settings

2021 ◽  
Keyword(s):  
State Of The Art ◽  
Minority Rights ◽  
Institutional Settings ◽  
Linguistic Justice ◽  
The Everyday ◽  
The World ◽  
Different Types ◽  
Everyday Interaction ◽  
Multidisciplinary Perspective

Translation Policies in Legal and Institutional Settings documents the state of the art in research on translation policies in legal and institutional settings. Offering case studies of past and present translation policies from several parts of the world, it allows for a compelling comparison of attitudes towards translation in varying contexts. This edited volume highlights the virtues of integrating different types of expertise in the study of translation policy: theoretical and applied, historical and modern, legal, institutional, and political. It effectively illustrates how a multidisciplinary perspective furthers our understanding of translation policies and unveils their intrinsic link with topics such as multilingualism, linguistic justice, minority rights, and citizenship. In this way, each contribution sheds new light on the role of translation in the everyday interaction between governments and multilingual populations.

scholarly journals The Role of Wetland Plants on Wastewater Treatment and Electricity Generation in Constructed Wetland Coupled with Microbial Fuel Cell

2021 ◽  
Vol 11 (16) ◽  
pp. 7454
Author(s):  
Ke Li ◽  
Jingyao Qi ◽  
Fuguo Zhang ◽  
Nicholas Miwornunyuie ◽  
Paulette Serwaa Amaniampong ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Electricity Generation ◽  
Hydraulic Retention Time ◽  
Low Cost ◽  
Industrial Applications ◽  
Wetland Plant ◽  
Plant Component ◽  
Novel Technology ◽  
Overall Performance

CWMFC is a novel technology that has been used for almost a decade for concurrent wastewater treatment and electricity generation in varying scopes of domestic, municipal, and industrial applications since its implementation in 2012. Its advantage of low-cost enhanced wastewater treatment and sustainable bioelectricity generation has gained considerable attention. Nevertheless, the overall efficiency of this novel technology is inclined by several operating factors and configuration strands, such as pH, sewage composition, organic loading, electrode material, filter media, electrogens, hydraulic retention time, and macrophytes. Here, we investigate the effect of the wetland plant component on the overall performance of CWMFCs. The macrophyte’s involvement in the oxygen input, nutrient uptake, and direct degradation of pollutants for the required treatment effect and bioelectricity production are discussed in more detail. The review identifies and compares planted and unplanted CWMFC with their efficiency on COD removal and electricity generation based on previous and recent studies.

scholarly journals A Qualitative Study of Pre-Vaccine Decrease of Mortality from COVID-19

2021 ◽  
Author(s):  
Vugar Mammadov ◽  
Lala Jafarova
Keyword(s):  
Psychological Health ◽  
Health Issues ◽  
Political Events ◽  
The World ◽  
Key Factor ◽  
The Media ◽  
Global Nature ◽  
Restrictive Measures

More than a year has passed since the appearance of disease called COVID-19 in the world. This disease became the reason for unprecedented measures taken so far, having received the classification of pandemic. The world has faced with pandemics before, but society has not yet taken such unprecedented restrictive measures. The restrictions of not only local but even of global nature, such as the suspension of international flights, various scientific and political events were adopted around the world. Media resources have played a key role in the formation and development of the attitude towards the disease in people. Despite all the depressing news, the facts showed a low mortality rate, which is often ignored by the media. As a result, medical staff around the world have faced psychological health issues among the different groups of the population, especially vulnerable ones such as people with chronic disease and with weak immunity. At present, it is early to talk about the results and outcomes of the pandemic. However, previous year has taught us many lessons and can become a key factor in understanding the role of the media in pandemic times, developing strategies for combating diseases and protecting public health.

scholarly journals Digital storytelling in the world economy classroom

2021 ◽  
Vol 125 ◽  
pp. 04006
Author(s):  
Valerija Sergeevna Mincicova ◽  
Elizaveta Valentinovna Ogloblina ◽  
Asem Hekimoglu Naushabaeva
Keyword(s):  
Higher Education ◽  
World Economy ◽  
Digital Storytelling ◽  
Successful Implementation ◽  
Video Editing ◽  
Generation Z ◽  
The World ◽  
Different Types ◽  
Creative Group

This study aims to share the digital storytelling experience of higher education teachers including those using English as a Medium of Instruction. The methodology consists of giving a task to 130 students of bachelor course divided into 29 creative groups. Students created video stories on prearranged topics concerning the world economy agenda. We focused on analyzing the stages of project creation and the role of a teacher in the process, drivers of successful implementation of the digital storytelling, and compared the effectiveness of different types of classwork with digital storytelling. Thus, we conclude that such factors as the cohesion of the creative groups, ability to use video editing instruments and distribution of the tasks between members in the initial stages play the least important role in the successful implementation of the task, but at the same time can be most easily influenced and course-corrected by a teacher. The research also demonstrated that the potential to connect the topic with the own interests of the creative group, ability to present the result of work publicly and interest in the topic were the main drivers for success and involvement. Those are the characteristics of the generation Z, and we strongly believe that the teachers of higher education should consider the findings we present in the results section. It is also revealed that digital storytelling, despite being time-consuming, has a more emotional influence on students and gives them more satisfaction after a presentation.

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