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Topic Review
Applications of Laser-Induced Graphene Technology
Laser-induced graphene (LIG) technology has received a large amount of attention from scholars and has a wide range of applications in supercapacitors, batteries, sensors, air filters, water treatment and so on. A variety of preparation methods for graphene was summarized . The effects of laser processing parameters, laser type, precursor materials, and process atmosphere on the properties of the prepared LIG were focused. Two strategies for large-scale production of LIG were briefly described. The wide applications of LIG in the fields of signal sensing, environmental protection, and energy storage were discussed.
  • 2.6K
  • 20 Jul 2022
Topic Review
Chemical-based Methodologies for Fresh Fish Shelf-Life Extension
Due to its characteristics, fresh fish is a highly perishable food with a very short shelf-life under refrigeration. Several methods have been introduced to slow down its deterioration, such as by means of oxygen depletion of the food package (vacuum packaging), or by changing the natural atmosphere that is in contact with the fresh fish (modified atmosphere packaging), or by the use of chemicals generally recognized as safe: such compounds can be directly applied (by dipping or spraying) or incorporated into packaging materials and slowly migrate to the product, exerting a hurdle effect against microbial development and lipid oxidation (active packaging).
  • 2.6K
  • 22 Oct 2021
Topic Review
Mark-up Mechanism
A mark-up is defined as the additional charges and costs that are applied to the price of a product for the purpose of covering overhead costs, distribution charges, and profit.
  • 2.5K
  • 12 Jan 2021
Topic Review
Health Benefits of Noni Juice
Noni juice is a globally popular health beverage originating in the tropics. Traditional healers believe the noni plant to be useful in treating a wide range of maladies. Consumers throughout the world have similar perceptions. To better understand the potential health benefits of noni juice, human intervention studies are reviewed and discussed.
  • 2.5K
  • 22 Jul 2021
Topic Review
Resonant Vibration Energy Harvesters
An increasing number of practical applications (e.g. medical implants, embedded sensors in buildings and bridges, industrial applications) are based on the use of Wireless Sensor Nodes (WSNs), which are small computing devices capable of collecting and transmitting data to a base station. In order to limit or to avoid the drawbacks associated to the use of primary batteries (expensive maintenance/replacement, insufficient or unpredictable duration of operational life, not eco-friendly disposal due to their hazardous chemical content), the required energy can be delivered to the WSNs by energy harvesting. Energy harvesting is the conversion of otherwise wasted energy into electrical energy. Since vibrations can be found almost everywhere, an interesting possibility is represented by the use of vibration energy harvesters.  Here the attention is focused on Resonant Vibration Energy Harvesters (RVEHs) and in particular on Piezoelectric RVEHs and Electromagnetic RVEHs. A brief description of their operating principles is provided and their equivalent electric circuits are analyzed in order to identify the operating conditions able to maximize the extracted electrical power. This is a crucial aspect in applications involving energy harvesting systems. Moreover a brief introduction to the concepts of Electrical and Mechanical Tuning Techniques is also provided.
  • 2.5K
  • 18 Sep 2021
Topic Review
Bike Boom
The term "bike boom" or "bicycle craze" refers to any of several specific historic periods marked by increased bicycle enthusiasm, popularity, and sales. Prominent examples include 1819 and 1868, as well as the decades of the 1890s and 1970s — the latter especially in North America — and the 2010s in the United Kingdom.
  • 2.5K
  • 14 Oct 2022
Topic Review
Ring-Tailed Cat
The ringtail (Bassariscus astutus) is a mammal of the raccoon family native to arid regions of North America. It is widely distributed and well adapted to disturbed areas. It has been legally trapped for its fur. It is listed as Least Concern on the IUCN Red List. It is also known as the ringtail cat, ring-tailed cat, miner's cat or bassarisk, and is sometimes called a cacomistle, though this term seems to be more often used to refer to Bassariscus sumichrasti.
  • 2.5K
  • 14 Oct 2022
Topic Review
Food-Waste-Reduction Based on IoT and Big Data
IoT technology through ICT infrastructure and smart devices combines to gather huge amounts of data in real-time, which is commonly known as big data. The big data generated by IoT devices will be stored in the big data storage system and will be used for analysis. The importance of Food Wastage Reduction (FWR) is related to the loss of all the natural resources in the supply chain, including expenditures related to the use of land, water supply, and energy consumption. The application of IoT to FWR systems is also examined where use RFID sensors as a key tool to monitor food waste for each individual in accordance with the proposed model, while describe the application of IoT-based technologies to agricultural supply chain management in developing countries.
  • 2.5K
  • 08 Dec 2023
Topic Review
Vitamin D, Oxidative-Stress and Aging
Recent advances in vitamin D research indicate that this vitamin, a secosteroid hormone, has beneficial effects on several body systems other than the musculoskeletal system. Both 25 dihydroxy vitamin D [25(OH)2D] and its active hormonal form, 1,25-dihydroxyvitamin D [1,25(OH)2D] are essential for human physiological functions, including damping down inflammation and the excessive intracellular oxidative stresses. Vitamin D is one of the key controllers of systemic inflammation, oxidative stress and mitochondrial respiratory function, and thus, the aging process in humans. In turn, molecular and cellular actions form 1,25(OH)2D slow down oxidative stress, cell and tissue damage, and the aging process. On the other hand, hypovitaminosis D impairs mitochondrial functions, and enhances oxidative stress and systemic inflammation. The interaction of 1,25(OH)2D with its intracellular receptors modulates vitamin D–dependent gene transcription and activation of vitamin D-responsive elements, which triggers multiple second messenger systems. Thus, it is not surprising that hypovitaminosis D increases the incidence and severity of several age-related common diseases, such as metabolic disorders that are linked to oxidative stress. These include obesity, insulin resistance, type 2 diabetes, hypertension, pregnancy complications, memory disorders, osteoporosis, autoimmune diseases, certain cancers, and systemic inflammatory diseases. Vitamin D adequacy leads to less oxidative stress and improves mitochondrial and endocrine functions, reducing the risks of disorders, such as autoimmunity, infections, metabolic derangements, and impairment of DNA repair; all of this aids a healthy, graceful aging process. Vitamin D is also a potent anti-oxidant that facilitates balanced mitochondrial activities, preventing oxidative stress-related protein oxidation, lipid peroxidation, and DNA damage. New understandings of vitamin D-related advances in metabolomics, transcriptomics, epigenetics, in relation to its ability to control oxidative stress in conjunction with micronutrients, vitamins, and antioxidants, following normalization of serum 25(OH)D and tissue 1,25(OH)2D concentrations, likely to promise cost-effective better clinical outcomes in humans. 
  • 2.5K
  • 29 Oct 2020
Topic Review
Three Dimensional Printing
The following article introduces technologies that build 3 dimensional (3D) objects by adding layer-upon-layer of material, called also additive manufacturing technologies.  Furthermore most important features supporting the conscious choice of 3D printing methods for applications in micro and nanomanufacturing were covered. The micromanufacturing method covers photopolymerisation based methods such as Stereolithography (SLA), Digital Light Processing (DLP), Liquid Crystal Display – DLP coupled method, Two-Photon Polymerisation (TPP) and Inkjet based methods. Functional photocurable materials, with magnetic, conductive or specific optical applications in the 3D printing processes were also reviewed. 
  • 2.5K
  • 26 Oct 2020
Topic Review
Natural Killer Cells
When facing an acute viral infection, our immune systems need to function with finite precision to enable the elimination of the pathogen, whilst protecting our bodies from immune-related damage. In many instances however this ‘perfect balance’ is not achieved, factors such as ageing, cancer, autoimmunity and cardiovascular disease all skew the immune response which is then further distorted by viral infection. SARS-CoV-2 infection skews the immune response towards an overwhelmingly inflammatory phenotype. Restoration of NK cell effector functions has the potential to correct the delicate immune balance required to effectively overcome SARS-CoV-2 infection.
  • 2.5K
  • 27 Oct 2020
Topic Review
Earthquake Warning System Using Low-Cost Sensors in Taiwan
With advancements in technology and data processing speed, risk mitigation tools, such as earthquake early warnings (EEW), have emerged as life-saving guards in many earthquake-prone countries. The seconds-long warning achieved during EEW may be very helpful in saving the lives of human beings by allowing them to flee from buildings (if possible), or to take the proper shelter, or to move to a safer place within a building. 
  • 2.5K
  • 29 Nov 2021
Topic Review
Historic Garden Management
Historic garden management seeks to direct the evolution of complex cultural and natural heritage sites towards best meeting the needs of their owners, visitors and community. This entails balancing the conservation of these delicate socio-ecological systems with  accessibility to the many environmental, economic and socio-cultural benefits that they provide. Thus, historic garden management must be operational, continual and sustainable; it involves multiple stakeholders, and most of all, must be adaptive. That is why it is especially useful to conceive of historic garden management as a cyclical process that loops through a strategic phase, an operational phase and an assessment phase. In order to understand the many facets and challenges of historic garden management, a systematic review was carried out on international academic literature addressing this topic, with special attention regarding the social, economic and environmental aspects of sustainability. Academic studies on this subject come from many different disciplines, making it both stimulating and fragmented. This review seeks to consolidate these interdisciplinary efforts into a clear vision, including a framework of key themes and research methods. An analysis of the reviewed literature shows that research has focused on describing the gardens themselves, with few studies interested in the people sustaining them. Future research should follow recent policy documents’ lead and pay more attention to community value and involvement. 
  • 2.5K
  • 27 Jan 2021
Topic Review
Vitamin C
Vitamin C is implicated in various bodily functions due to its unique properties in redox homeostasis. Moreover, vitamin C also plays a great role in restoring the activity of 2-oxoglutarate and Fe2+ dependent dioxygenases (2-OGDD), which are involved in active DNA demethylation (TET proteins), the demethylation of histones, and hypoxia processes. Therefore, vitamin C may be engaged in the regulation of gene expression or in a hypoxic state.
  • 2.5K
  • 05 Feb 2021
Topic Review
The Complex Adaptive System of Rural Tourism
Complex adaptive systems (CAS) theory was proposed by John Holland in 1994 and mainly studies the mechanisms of a system’s complexity and system emergence. The core of the theory is “adaptability produces complexity”, and the adaptive interaction of microscopic agents can produce macroscopic complexity phenomena. The theory believes that the system is a dynamic network composed of interacting and adaptable agents. Adaptive agents are capable of “learning” and “growing” in order to obtain the maximum symbiotic benefits. Agents can adjust behavior rules to meet changes in the external environment and other agents’ requirements in the process of interacting with the information, energy, and matter of the external environment. They move or aggregate to occupy a better niche and obtain the greatest benefits in symbiosis. The overall differentiation, aggregation, and reconstruction of the system are gradually derived on the basis of the interactions between the agents and the environment. Along with the dynamic adaptability process, the whole system leaps from chaos to order and from simple to complex .
  • 2.5K
  • 07 Jan 2022
Topic Review
Reform Boehm System (Clarinet)
The Boehm system is a fingering system for the flute and the clarinet, as a Reform Boehm system the corresponding handle system for the clarinet, connected to a clarinet body, which has a different inner bore than in the original Boehm clarinet , with the aim of producing a different sound character together with another mouthpiece.
  • 2.5K
  • 27 Oct 2022
Topic Review
Components of Silkworm Pupae
Silkworm pupae are insects that are beneficial to human health, not only for their high nutritional value but, more importantly, for the variety of pharmacological functions they can perform when consumed.
  • 2.5K
  • 10 Jun 2022
Topic Review
Artemisia Genus as Biopesticides
The Artemisia L. genus includes over 500 species with worldwide distribution and diverse chemical composition. Many secondary metabolites of this genus are known for their antimicrobial, insecticidal, parasiticidal, and phytotoxic properties, which recommend them as possible biological control agents against plant pests. Given the negative impact of synthetic pesticides on human health and on the environment, Artemisia‐derived biopesticides and their nanoformulations emerge as promising ecofriendly alternatives to pest management.
  • 2.5K
  • 02 Jul 2021
Topic Review
Augmented Reality
Research shows the beneficial effects of applying Augmented Reality technology to improve different abilities in children and adolescents with Autism Spectrum Disorder: cognitive and emotional processes, social communication, theory of mind, attention, and functional and motor outcomes.
  • 2.5K
  • 02 Sep 2020
Topic Review
Traffic Congestion
Traffic congestion is ubiquitous in large cities around the world; where it leads to increased air pollution, vehicle noise, and travel time for private and public transportation. These challenges reduce the well-being of both road users and urban populations. 
  • 2.5K
  • 07 Jul 2021
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