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Topic Review
RDF Fire Hazards Mitigation
Experience has shown that power station conversions to a new fuel using the same materials handling methods and equipment, designed for the previous or original intended fuel, without a proper fire engineering re-evaluation of plant suitability (for the properties and behaviors of the new fuel) is not a safe option. Many times, the detection and suppression equipment is presumed adequate, whereas a complete technical evaluation is required. Given that RDF fires are extremely difficult to extinguish it should be remembered that fires could last for days or even weeks. Additionally, given the correct circumstances, the effluent from RDF smoldering fires within a pile can lead to explosion(s), possibly causing severe injuries and even the loss of life. In addition, there are also business considerations due to the subsequent severe interruptions, not forgetting the importance of the security of electricity supply. The difficulties of RDF fire hazards mitigation begin with the notoriously problematic factor of discovery of a fire within the storage pile; they then, more often than not, continue throughout the entire fire-fighting operations process.
  • 1.4K
  • 23 Nov 2021
Topic Review
Dynamic Corporate Governance and Sustainability
Recent complex changes of the organizational environment urge the boards of directors of energy corporations to step up quickly in crises (e.g., COVID-19) and foster innovation, to seize new strategic opportunities (e.g., environmental, social, and governance (ESG) investments). ESG projects could face serious challenges in the fast-changing organizational environment generated by unpredictable and impactful factors like COVID-19. The success of ESG projects might depend on proper board-level answers to resource-based constraints and opportunities generated by a dynamically changing environment. This dynamic board behavior could involve board intervention, regarding, for example, innovation, inter-organizational networks, and organizational changes. 
  • 1.4K
  • 25 Mar 2022
Topic Review
CRISPR/Cas9 for Functional Analysis in Soybean
CRISPR/Cas9 is the most powerful reverse genetics approach for fast and precise functional analysis of candidate genes/mutations of interest. Rapid and large-scale analyses of CRISPR/Cas-induced mutagenesis is achievable through Agrobacterium rhizogenes-mediated hairy root transformation. The combination of A. rhizogenes hairy root-CRISPR/Cas provides an extraordinary platform for rapid, precise, easy, and cost-effective “in root” functional analysis of genes of interest in legume plants, including soybean.
  • 1.4K
  • 26 Apr 2022
Topic Review
Concept of the Robo-Advisor with Digital Twin
The term “digital twin” (DT) refers to a digital representation of an individual that has the capability of integrating any digital data with virtually real-time data and generating advanced analytics for feedback, recommendation, and alternative solutions for users. 
  • 1.4K
  • 11 May 2022
Topic Review
Augmented Reality (AR)-based Learning Environments
Augmented reality (AR)-based learning environments are argued to foster cognitive and emotional involvement. Immersion has been identified as one of the driving forces that promote learning in technology-based learning environments.
  • 1.4K
  • 11 Mar 2023
Topic Review
Biotechnological Approaches Applied for Marine Hydrocarbon Spills Remediation
Biological and physico-chemical remediation technologies can be efficient in terms of spill cleanup and microorganisms—mainly bacteria—are the main ones responsible for petroleum hydrocarbons (PHCs) degradation such as crude oil. Biodegradation is considered as one of the most sustainable and efficient techniques for the removal of PHCs. 
  • 1.4K
  • 18 Jul 2022
Topic Review
IBM Roadrunner
Roadrunner was a supercomputer built by IBM for the Los Alamos National Laboratory in New Mexico, USA. The US$100-million Roadrunner was designed for a peak performance of 1.7 petaflops. It achieved 1.026 petaflops on May 25, 2008, to become the world's first TOP500 LINPACK sustained 1.0 petaflops system. In November 2008, it reached a top performance of 1.456 petaFLOPS, retaining its top spot in the TOP500 list. It was also the fourth-most energy-efficient supercomputer in the world on the Supermicro Green500 list, with an operational rate of 444.94 megaflops per watt of power used. The hybrid Roadrunner design was then reused for several other energy efficient supercomputers. Roadrunner was decommissioned by Los Alamos on March 31, 2013. In its place, Los Alamos commissioned a supercomputer called Cielo, which was installed in 2010. Cielo was smaller and more energy efficient than Roadrunner, and cost $54 million.
  • 1.4K
  • 28 Sep 2022
Topic Review
Life Quality Index
The Life Quality Index (LQI) is a calibrated compound social indicator of human welfare that reflects the expected length of life in good health and enhancement of the quality of life through access to income. The Life Quality Index combines two primary social indicators: the expectancy of healthy life at birth, E, and the real gross domestic product per person, G, corrected for purchasing power parity as appropriate. Both are widely available and accurate statistics.
  • 1.4K
  • 19 Oct 2022
Topic Review
Forensic Limnology
Forensic limnology is a sub-field of freshwater ecology, which focuses especially on the presence of diatoms in crime scene samples and victims. Different methods are used to collect this data but all identify the ratios of different diatom colonies present in samples and match those samples with locations at the crime scene.
  • 1.4K
  • 21 Oct 2022
Topic Review
Page LaPyout (Cartography)
Page layout, also called map layout or map composition, is the part of Cartographic design that involves assembling various map elements on a page. This may include the map image itself, along with titles, legends, scale indicators, inset maps, and other elements. It follows principles similar to page layout in graphic design, such as balance, gestalt, and visual hierarchy. The term map composition is also used for the assembling of features and symbols within the map image itself, which can cause some confusion; these two processes share a few common design principles but are distinct procedures in practice. Similar principles of layout design apply to maps produced in a variety of media, from large format wall maps to illustrations in books to interactive web maps, although each medium has unique constraints and opportunities.
  • 1.4K
  • 24 Oct 2022
Topic Review
Pathogenesis of Campylobacter jejuni in Broilers
Campylobacter jejuni (C. jejuni) is the leading cause of human foodborne illness associated with poultry (such as Broilers), beef, and pork consumption. C. jejuni is highly prevalent in commercial poultry farms, where horizontal transmission from the environment is considered to be the primary source of C. jejuni.
  • 1.4K
  • 10 Nov 2022
Topic Review
Marriage Equality (Same Sex) Act 2013
The Marriage Equality (Same Sex) Act 2013 was an act of parliament of the Australian Capital Territory Legislative Assembly that was intended to legalise same-sex marriage in the Australian Capital Territory (ACT). It was first presented to the ACT Legislative Assembly on 19 September 2013 by the ACT Attorney-General, Simon Corbell. The law intended to build on the existing recognition of same-sex unions in the Australian Capital Territory, which included recognition of de facto partners, civil partnerships and same-sex-only civil unions (with civil unions being replaced by same-sex marriage if the Act was successfully passed). The act was passed in the Legislative Assembly on 22 October 2013. It came into operation on 7 November although wedding ceremonies under the provisions of the Act did not occur until 7 December 2013. West Australian parliamentarian Stephen Dawson and his husband Dennis Liddelow were the first same-sex couple to marry under the new laws. Upon the law's commencement, the Abbott Government challenged the legal and constitutional validity of the Act, lodging an immediate challenge in the High Court of Australia. The case was heard on 3 December and a ruling was handed down on 12 December 2013. The High Court unanimously struck the act down in its entirety, on the basis that it was in conflict with the federal Marriage Act, which defined marriage in Australia as the union of a man and a woman. The court did however expressly confirm in its ruling that the Parliament of Australia had the constitutional authority to amend the definition of marriage in the Marriage Act, so as to allow same-sex couples to marry.
  • 1.4K
  • 25 Nov 2022
Topic Review
Smart Streets as a Cyber-Physical Social Platform
Smart streets are part of a cyber-physical social infrastructure in the public realm, including data obtained from sensors, the interconnection between different services, technologies and social actors, intelligence derived from analysis of the data, and optimisation of operations within a street. Cyber-physical systems (CPS) integrate computation with physical objects and processes, a literal co-mingling of the physical world and the cyber world (including computation, communication, and control systems). A cyber-physical social platform represents a recent expansion of CPS that bridges the gap between human intelligence and machine intelligence by including a social domain characterised by human participation and interactions.
  • 1.4K
  • 14 Feb 2023
Topic Review
Host Defense and Pathogenesis in Staphylococcus aureus
Staphylococcus aureus is a versatile pathogen known to cause hospital- and community-acquired, foodborne, and zoonotic infections. As a multi-faceted pathogen, it is essential to consolidate the knowledge on its pathogenesis, including the mechanisms of virulence regulation, development of antimicrobial resistance and biofilm formation, to make it more amenable to classical and novel therapeutic strategies such as those based on nanomaterials.
  • 1.4K
  • 08 Feb 2023
Topic Review
Deep Eutectic Solvents and Rare Earth Elements
The boosted interest in the use of rare earth elements (REEs) in modern technologies had also increase the necessity of their recovery from various sources, including raw materials and wastes. Though Hydrometallurgy plays a key role in these recovery processes, some drawbacks (apparent or not) of these processes (including the use of aggressive mineral acids, harmful extractants and diluents, etc.), had led to the development of a more environmental friendship subclass named Solvometallurgy, in which non-aqueous solvents substituted to the aqueous media of the hydrometallurgical processing. Together to ionic liquids (ILs), the non-aqueous solvents chosen for these usages are the chemicals known as Deep Eutectic Solvents (DEEs). The utilization of DEEs included the leaching of REEs from the different sources containing them, and also in the separation-purification steps necessary for the yielding of these elements, normally as oxides or salts, in the most purified form. 
  • 1.4K
  • 15 Apr 2024
Topic Review
Anthocyanins and Health
The antioxidant activity of anthocyanins in food is well known. Numerous antioxidant assays have been proposed to measure the capacity of anthocyanins to prevent the oxidation process that naturally occurs. Different solvents, temperatures, and pH levels are applied in each assay, and these factors should be taken into account in order to obtain useful and reproducible results. The concentration and the structure of these compounds are directly related to their antioxidant capacity and their environment. However, the effectiveness of the anthocyanin ingestion against diseases is also influenced by its bioavailability. Novel methodologies that simulate the digestion process have been developed in order to facilitate the current knowledge of anthocyanins bioavailability. Studies highlight the potential synergy effect between parent compounds and their derivatives (metabolites, conjugated products, and microbe-generated metabolites).
  • 1.4K
  • 31 May 2021
Topic Review
Pachyuromys
The fat-tailed gerbil (Pachyuromys duprasi), also called the duprasi gerbil, is a rodent belonging to subfamily Gerbillinae. It is the only member of the genus Pachyuromys. These rodents are the most docile species of the gerbil subfamily. They have fluffy and soft fur. Fat-tailed gerbils have been available on the pet market for decades, but in the 21st century breeders can be hard to find. They are sometimes considered as pocket pets. Other common English names are: fat-tailed jird, fat-tailed rat, and beer mat gerbil. Names in other languages are: abu lya (أبو ليه) in Egyptian Arabic, and adhal alyan (عضل أليان) in Standard Arabic, souris à grosse queue (French), Fettschwanzrennmaus (German), fedthale mus (Danish), rasvahäntägerbiili (Finnish), and dikstaartgerbil (Dutch).
  • 1.4K
  • 28 Sep 2022
Topic Review
Safe Applications of Aerogels
An increasing number of aerogels as nanostructured highly porous materials are entering the market in every day products, with an attractive portfolio of properties for emerging applications ranging from health care and leisure to electronics, cosmetics, energy, agriculture, food and environmental.
  • 1.4K
  • 03 Nov 2023
Topic Review
Porous Concrete
Alternative materials to replace cement in pavements have recently been widely studied with the purpose of decreasing the environmental impacts that the construction industry generates. In this context, the implementation of sustainable urban drainage systems has grown, especially with porous pavements, with the intention to reduce water and environmental impacts. In the present investigation, the addition of alternative materials to minimize the use of cement in porous concrete pavements is evaluated. Starting from a partial substitution of Portland cement with metakaolin, experimental geopolymer concretes were produced with metakaolin and waste basalt powder according to several dosages. Two sets of mixtures were analyzed to evaluate the Porous Concrete Design (PCD) methodology for porous concrete mixtures with alternative materials. A deep analysis was proposed for the evaluation of the mechanical and volumetric properties of the mixtures. Results demonstrated that replacing 5% of cement with metakaolin can increase both permeability and indirect tensile strength. Geopolymer mixtures can achieve permeability significantly higher than the traditional porous concrete, but this decreases their indirect tensile strength. However, considering the promising results, an adjustment in the mix design of the geopolymer mixtures could increase their mechanical properties without negatively affecting the porosity, making these materials a suitable alternative to traditional porous cement concrete, and a solution to be used in urban pavements.
  • 1.4K
  • 27 Oct 2020
Topic Review
Simulating Resource Management across the Cloud-to-Thing Continuum
In recent years, there has been significant advancement in resource management mechanisms for cloud computing infrastructure performance in terms of cost, quality of service (QoS) and energy consumption. The emergence of the Internet of Things has led to the development of infrastructure that extends beyond centralised data centers from the cloud to the edge, the so-called cloud-to-thing continuum (C2T). This infrastructure is characterised by extreme heterogeneity, geographic distribution, and complexity, where the key performance indicators (KPIs) for the traditional model of cloud computing may no longer apply in the same way. Existing resource management mechanisms may not be suitable for such complex environments and therefore require thorough testing, validation and evaluation before even being considered for live system implementation. Similarly, previously discounted resource management proposals may be more relevant and worthy of revisiting. Simulation is a widely used technique in the development and evaluation of resource management mechanisms for cloud computing but is a relatively nascent research area for new C2T computing paradigms such as fog and edge computing. We present a methodical literature analysis of C2T resource management research using simulation software tools to assist researchers in identifying suitable methods, algorithms, and simulation approaches for future research. We analyse 35 research articles from a total collection of 317 journal articles published from January 2009 to March 2019. We present our descriptive and synthetic analysis from a variety of perspectives including resource management, C2T layer, and simulation.  
  • 1.4K
  • 23 Dec 2020
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