Role of Microorganisms in Bioremediation

2021 ◽  
Vol 2 (2) ◽  
pp. 140-176
Author(s):  
Komal Aslam ◽  
Hafiza Iqra Saeed ◽  
Jessica Alyas ◽  
Aysha Saeed ◽  
Tanveer Majeed ◽  
...  
Keyword(s):  
Organic Pollutants ◽  
Cost Effective ◽  
Industrial Contaminants ◽  
Optimal Functioning ◽  
Cost Effective Approach ◽  
Different Types ◽  
Living Organisms

Bioremediation involves the use of natural microorganisms for the purpose ofdegrading numerous types of industrial and environmental waste. Microorganismsrequire carbon, nutrients, and energy to live and multiply as all living organisms do. Inorder to obtain energy, such microorganisms break down organic pollutants into simplerorganic compounds like carbon, salts, water, and similar harmless products. Thisapproach of degrading contaminants using microorganisms has proved much beneficialand has been proven to be cost-effective and efficient. There are a lot of naturally occurringmicroorganisms that have been reported essential in the degradation of organic pollutants.Different industries use different types of bioremediation methods. Specificenvironmental conditions may be required for optimal functioning of microbes e.g., pH,temperature, humidity, etc. Bioremediation has been proven as an environment-friendlyand cost-effective approach to deal with industrial contaminants. Descriptive informationof microbes involved in bioremediation has been explained in this review.

The Susceptibility of Healthy People to COVID-19 Infection and the Role of ACE2

2021 ◽  
Author(s):  
Mehdi Kushkestani ◽  
Mohsen Parvani ◽  
Bakhtyar Tartibian ◽  
Rasoul Eslami
Keyword(s):  
Risk Factors ◽  
Cost Effective ◽  
Normal Subjects ◽  
Definitive Treatment ◽  
Activity Levels ◽  
Cost Effective Approach ◽  
Increased Risk ◽  
Physical Activity Levels ◽  
Ace2 Gene

The COVID-19 virus has caused many deaths of people worldwide since the pandemic began. However, no definitive treatment for this infection has been discovered so far. It has been shown that comorbidities such as diabetes, hypertension and cardiovascular diseases are associated with an increased risk of SARS-COV-2 infection. Interestingly, SARS-COV-2, like SARS-COV, uses the ACE2 gene to enter the host cell. Also, changes or imbalance in ACE2.ACE can affect SARS-COV-2 susceptibility, related outcomes and mortality. Regarding the crucial role of ACE2 protein in COVID-19 infection, the effect of different factors such as age, BMI, physical activity levels, nutritional status, altitude, as well as blood group was assessed on the level of this protein. Further, to our knowledge, no study has been conducted to examine factors that increase or decrease the risk of COVID-19 and its related severity and outcome in normal subjects emphasizing the pivotal role of ACE2. Therefore, the primary purpose of this study was to investigate the involved mechanisms of ACE2 protein and other risk factors causing infection in different situations and finally, to introduce a safe, accurate, and cost-effective approach to prevent SARS-COV-2 infection and hard clinical outcomes in normal subjects.

Quantitative Selection of Variation Reduction Plans

1998 ◽  
Author(s):  
Anna C. Thornton
Keyword(s):  
Risk Mitigation ◽  
Cost Effective ◽  
Variation Reduction ◽  
Multiple Quality Characteristics ◽  
Cost Effective Approach ◽  
Manufacturing Performance ◽  
The Impact ◽  
Manufacturing Variation ◽  
Selection Of

Abstract Quality has been a rallying call in the design and manufacturing world for the last two decades. One way to improve quality is to reduce the impact of manufacturing variation. Variation risk mitigation is challenging especially when a product has multiple quality characteristics and complex production and assembly. It is common wisdom that companies should identify and mitigate the risk associated with variation throughout the design process. As yield problems are identified, they should be mitigated using the most cost effective approach. One approach to variation risk mitigation is variation reduction (VR). VR targets reduction of variation introduced by existing manufacturing processes using tools such as Design of Experiments (DOE) and robust design. Many companies have specialized groups that specialize in these methods. VR teams have the role of improving manufacturing performance; however, these teams are limited in their resources. In addition, no tools exist to quantitatively determine where a VR team’s efforts are most effectively deployed. This paper provides a mathematical and optimization model to best allocate VR resources in a complex product.

FORMATION OF COMBINED SURFACE FEATURES OF PROTRUSION ARRAY AND WRINKLES ATOP SHAPE-MEMORY POLYMER

2009 ◽  
Vol 16 (06) ◽  
pp. 929-933 ◽  
Author(s):  
L. SUN ◽  
Y. ZHAO ◽  
W. M. HUANG ◽  
T. H. TONG
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymer ◽  
Polymer Surface ◽  
Cost Effective ◽  
Gold Layer ◽  
Surface Features ◽  
Cost Effective Approach ◽  
Different Types ◽  
Sputter Deposited ◽  
Steel Balls

We demonstrate a simple and cost-effective approach to realize two combined surface features of different scales together, namely submillimeter-sized protrusion array and microwrinkles, atop a polystyrene shape-memory polymer. Two different types of protrusions, namely flat-top protrusion and crown-shaped protrusion, were studied. The array of protrusions was produced by the Indentation-Polishing-Heating (IPH) process. Compactly packed steel balls were used for making array of indents. A thin gold layer was sputter deposited atop the polymer surface right after polishing. After heating for shape recovery, array of protrusions with wrinkles on the top due to the buckling of gold layer was produced.

scholarly journals Low temperature isothermal amplification of microsatellites drastically reduces stutter artifact formation and improves microsatellite instability detection in cancer

2019 ◽  
Vol 47 (21) ◽  
pp. e141-e141 ◽  
Author(s):  
Antoine Daunay ◽  
Alex Duval ◽  
Laura G Baudrin ◽  
Olivier Buhard ◽  
Victor Renault ◽  
...  
Keyword(s):  
Low Temperature ◽  
Microsatellite Instability ◽  
Tandem Repeats ◽  
Limit Of Detection ◽  
Cost Effective ◽  
Isothermal Amplification ◽  
Dna Repeat ◽  
Cost Effective Approach ◽  
Living Organisms ◽  
Artifact Formation

Abstract Microsatellites are polymorphic short tandem repeats of 1–6 nucleotides ubiquitously present in the genome that are extensively used in living organisms as genetic markers and in oncology to detect microsatellite instability (MSI). While the standard analysis method of microsatellites is based on PCR followed by capillary electrophoresis, it generates undesirable frameshift products known as ‘stutter peaks’ caused by the polymerase slippage that can greatly complicate the analysis and interpretation of the data. Here we present an easy multiplexable approach replacing PCR that is based on low temperature isothermal amplification using recombinase polymerase amplification (LT-RPA) that drastically reduces and sometimes completely abolishes the formation of stutter artifacts, thus greatly simplifying the calling of the alleles. Using HT17, a mononucleotide DNA repeat that was previously proposed as an optimal marker to detect MSI in tumor DNA, we showed that LT-RPA improves the limit of detection of MSI compared to PCR up to four times, notably for small deletions, and simplifies the identification of the mutant alleles. It was successfully applied to clinical colorectal cancer samples and enabled detection of MSI. This easy-to-handle, rapid and cost-effective approach may deeply improve the analysis of microsatellites in several biological and clinical applications.

Peacemaking, Peacekeeping, and Peacebuilding

2017 ◽  
Author(s):  
Luc Reychler
Keyword(s):  
Cost Effective ◽  
Conflict Prevention ◽  
The European Union ◽  
Official Discourse ◽  
Post Conflict ◽  
Un Peacekeeping ◽  
Different Types ◽  
Research Gap ◽  
Made In

Peacemaking, peacekeeping, and peacebuilding have generated considerable interest in the areas of education, research, and politics. This can be attributed in part to the growing recognition that there are limits to violence and that proactive violence prevention is more cost-effective than reactive conflict prevention. Peacebuilding became part of the official discourse when the United Nations Secretary-General Boutros Boutros-Ghali introduced the concept of post-conflict peacebuilding in the Agenda for Peace. The agenda specified four areas of action relating to preventive diplomacy, peacemaking, peacekeeping, and peacebuilding. Two important documents have helped bring peacebuilding to the mainstream: the 2000 Brahimi Report, a response to the failures of complex UN peacekeeping in the 1990s, and In Larger Freedom: Towards Development, Security and Human Rights, which led to the establishment of the Peacebuilding Commission. Conflict prevention and peacebuilding have also been mainstreamed in the European Union and in most of the foreign offices of the member states. A central focus of studies on peacebuilding is the interrelationships between peacemaking, political change, development, peacekeeping, and reconciliation. Despite the progress made in terms of research, there are a number of gaps and challenges that still need to be addressed. Many analysts, for example, leave the end state vague and implicit and make no systematic differentiation between different types of peace. With respect to context, two salient issues require more attention: the qualities of a peacebuilder and the role of integrative power. The widest research gap is found in the planning of the peacebuilding process.

Revisiting the Synthesis of Aryl Nitriles: A pivotal role of CAN

2021 ◽  
Author(s):  
Rakhee Saikia ◽  
Kwihwan Park ◽  
Hayato Masuda ◽  
Miki Itoh ◽  
Tsuyoshi Yamada ◽  
...  
Keyword(s):  
Ammonium Nitrate ◽  
Cost Effective ◽  
Dual Role ◽  
Ceric Ammonium Nitrate ◽  
Pivotal Role ◽  
Aryl Iodides ◽  
Cost Effective Approach ◽  
Aryl Nitriles

Facilitated by the dual role of Ceric Ammonium Nitrate (CAN), herein we report a cost-effective approach for the cyanation of aryl iodides/bromides with CAN-DMF as an addition to the existing...

scholarly journals Cytotoxicity and Bioremediation of Heavy Metals by Highly Resistant Marine Bacteria

2021 ◽  
pp. 48-72
Author(s):  
Enas N. Danial ◽  
Walaa A Majrashi ◽  
Ahlam O. Bin Afif ◽  
Ebtehal S Alamri ◽  
Entesar M. Alhatimi ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Marine Bacteria ◽  
Environmental Concern ◽  
Cost Effective ◽  
Human Beings ◽  
Toxic Heavy Metals ◽  
Cost Effective Approach ◽  
Good Potential ◽  
Living Organisms ◽  
Detoxification Mechanisms

Environmental pollution of heavy metals is increasingly becoming a problem and has become of great concern due to the adverse effects it is causing around the world. These inorganic pollutants are being discarded in our waters, soils and into the atmosphere due to the rapidly growing agriculture and metal industries, improper waste disposal, fertilizers, and pesticides. Pollution in industrial areas is a serious environmental concern. Wastewater containing biotoxic substances of heavy metals in the ecosystem is one of the most important environmental and health challenges in our society. Hence, there is a growing need for the development of novel, efficient, eco-friendly, and cost-effective approach for the remediation of inorganic metals (Cr, Hg, Cd, and Pb) released into the environment and to safeguard the ecosystem. Mercury (Hg), Chromium (Cr), Cadmium (Cd), and lead (Pb) are known to cause damage to living organisms, including human beings. In this regard, recent advances in microbes-base heavy metal have propelled bioremediation as a prospective alternative to conventional techniques. Heavy metals are nonbiodegradable and could be toxic to microbes. Several microorganisms have evolved to develop detoxification mechanisms to counter the toxic effects of these inorganic metals. Several marine bacteria highly resistant and capable of growing at higher concentrations of Hg, Cr, Cd and Pb and to evaluate their potential to detoxify. Their detoxification efficiency for Hg, Cr, Cd and Pb indicates good potential for application in bioremediation of toxic heavy metals.

Digital Twin Enabled Mass Personalization: A Case Study of a Smart Wetland Maintenance System

2020 ◽  
Author(s):  
Shohin Aheleroff ◽  
Ray Y. Zhong ◽  
Xun Xu ◽  
Zhenan Feng ◽  
Pulkit Goyal
Keyword(s):  
Industry 4.0 ◽  
Cost Effective ◽  
Digital Twin ◽  
Maintenance System ◽  
Cost Effective Approach ◽  
Wide Range ◽  
Massive Number ◽  
Mass Personalization

Abstract Mass personalization has been an essential paradigm in the Industry 4.0 era. Mass personalization has long been a question of great interest in a wide range of industries. There is a recognized need for a cost-effective approach for dealing with a high number of unique products and services. There has been substantial research undertaken on the role of Industry 4.0 for mass customization. The contribution of Digital Twin (DT) has received little attention within mass personalization. No known empirical research has focused on exploring relationships between DT and mass personalization. The principal objective of this project was to utilize DT for a significant number of unique wetlands. In this study, a Digital Twin architecture was developed and applied to address challenges in regards to a massive number of distinct wetlands. This study is based on an industry-led case with significant value, including scheduled maintenance, real-time monitoring, remote controlling, and predicting functionalities. The findings indicated that there was a positive relationship between Digital Twin capabilities and mass personalization. The present results highlight the detrimental value that Digital Twin has on mass personalization. The results represent a further step towards developing Digital Twin research and development.

Fabricating omnidirectional low-reflection films by nano-imprinting method for boosting solar power generation of silicon-based solar cells

2017 ◽  
Vol 31 (19-21) ◽  
pp. 1740002 ◽  
Author(s):  
Mengyu Gao ◽  
Xinghua Zhan ◽  
Fei Chen ◽  
Yang Si ◽  
Shengnian Tie ◽  
...  
Keyword(s):  
Power Generation ◽  
Solar Cells ◽  
Incident Angle ◽  
Cost Effective ◽  
Si Solar Cells ◽  
Cost Effective Approach ◽  
Different Types ◽  
Potential Applications ◽  
Silicon Based ◽  
Pet Films

Low-reflection polyethylene terephthalate (PET) films are fabricated with nano-imprinting method. The films are then used to cover polycrystalline silicon solar cells. The morphological and optical properties of films are investigated. The films have periodic cylinder-like nanostructures and relatively low reflectivity in light incident angle ranging from 30[Formula: see text] to 60[Formula: see text]. The nanostructures are with a period of 600 nm and height of 90 nm. Besides, the polycrystalline Si solar cells covered with the films exhibit 12% more power generation than the cells covered with glass. Nano-imprinting method offers a cost-effective approach to fabricate omnidirectional anti-reflection films, which could boost the power generation of Si solar cells. Additionally, the films also have potential applications in different types of solar cells due to its facile fabricating process.

Antibiotic/steroid ear drop preparations: a cost-effective approach to their use

1990 ◽  
Vol 104 (11) ◽  
pp. 862-864 ◽  
Author(s):  
G. Reilly ◽  
D. W. Skinner
Keyword(s):  
General Practitioners ◽  
Middle Ear ◽  
Cost Effective ◽  
Treatment Regime ◽  
Cost Effective Approach ◽  
Different Types

AbstractOtorrhoea is a common otological complaint reflecting infection in the outer and/;or middle ear. Guidelines as to which antibiotic/;steroid ear drop preparation to use in a treatment regime are few and no studies comparing the different types of preparation are available. This paper reviews the antibiotic/;steroid ear drop preparations used by consultant surgeons and general practitioners and presents a two fold rationale for deciding which preparation to use, based on microbial sensitivity and cost.

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