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Topic Review
Deep Learning-Based Change Detection
Change detection based on remote sensing images plays an important role in the field of remote sensing analysis, and it has been widely used in many areas, such as resources monitoring, urban planning, disaster assessment, etc. With the improved spatial resolution of remote sensing images, many deep learning methods have been proposed for aerial and satellite image change detection. Depending on the granularity of the detection unit, these methods can be roughly classified into two main categories : scene-level methods (SLCDs) and region-level methods (RLCDs). These two categories are not necessarily independent of each other, and sometimes, the same change detection process may be present in different methods simultaneously.
  • 1.9K
  • 01 Apr 2022
Topic Review
Unmanned Aircraft in Singapore
According to the Civil Aviation Authority of Singapore (CAAS), an unmanned aircraft (UA), commonly known as a drone, is operated without a pilot on board. An unmanned aircraft system (UAS) comprises the UA and associated elements such as the remote control equipment. Due to Singapore’s busy airspace and densely populated urban environment, the UA must be operated safely and responsibly to avoid risks to aviation and public safety. The CAAS requires operators to understand and abide by regulations, including recreational or research uses of the UA. More information on the regulations can be found on Air Navigation Order, paragraph 80.
  • 1.9K
  • 11 Oct 2022
Topic Review
Physical Exercise and the Hallmarks of Breast Cancer
Growing evidence suggests that, among the different molecular/cellular pathophysiological mechanisms associated with cancer, there are 14 hallmarks that play a major role, including: (i) sustaining proliferative signaling, (ii) evading growth suppressors, (iii) activating invasion and metastasis, (iv) enabling replicative immortality, (v) inducing angiogenesis, (vi) resisting cell death, (vii) reprogramming energy metabolism, (viii) evading immune destruction, (ix) genome instability and mutations, (x) tumor-promoting inflammation, (xi) unlocking phenotypic plasticity, (xii) nonmutational epigenetic reprogramming, (xiii) polymorphic microbiomes, and (xiv) senescent cells. These hallmarks are also associated with the development of breast cancer, which represents the most prevalent tumor type in the world. For the first time, the effects of physical activity/exercise on these hallmarks are described. In summary, an active lifestyle, and particularly regular physical exercise, provides beneficial effects on all major hallmarks associated with breast cancer, and might therefore help to counteract the progression of the disease or its associated burden.
  • 1.9K
  • 01 Feb 2023
Topic Review
Biosynthesis of Nanoparticles Using Plant Extracts
Plant extracts and essential oils have a wide variety of molecules with potential application in different fields such as medicine, the food industry, and cosmetics. Furthermore, these plant derivatives are widely interested in human and animal health, including potent antitumor, antifungal, anti-inflammatory, and bactericidal activity. Given this diversity, different methodologies were needed to optimize the extraction, purification, and characterization of each class of biomolecules. In addition, these plant products can still be used in the synthesis of nanomaterials to reduce the undesirable effects of conventional synthesis routes based on hazardous/toxic chemical reagents and associate the properties of nanomaterials with those present in extracts and essential oils. 
  • 1.9K
  • 10 Apr 2023
Topic Review
The Integration of Cultural Tourism Industry
The development and integration of industries have promoted economic growth and gradually become an important perspective to understand the country’s modernized construction. The cultural industry and the tourism industry are naturally coupled, which is an important part of the process of industrial integration. In addition, the country’s drive towards modernization needs to improve the overall level of industrial integration, and rural revitalization is one of the key links to this.
  • 1.9K
  • 02 Aug 2023
Topic Review
Flatfeet Severity-Level Detection
Flat foot is a postural deformity in which the plantar part of the foot is either completely or partially contacted with the ground. In the clinical practices, X-ray radiographs have been introduced to detect flat feet because they are more affordable to many clinics than using specialized devices. 
  • 1.9K
  • 16 Oct 2023
Topic Review
Technical and Economic Viability of Underground Hydrogen Storage
The concept of underground hydrogen storage (UHS) is less known than its natural gas counterpart, which is expected due to its less significant role in the past. Despite this, the insights gained with natural gas can be applied to hydrogen storage due to the shared cavern design and operation.
  • 1.9K
  • 11 Dec 2023
Topic Review
Encapsulate Carotenoids with Cyclodextrin
Carotenoids' inclusion in food matrices presents multiple challenges related to their low stability and low water solubility. The inclusion of carotenoids in complexes with cyclodextrins constitutes a promising technology for the stabilization of these pigments, with possible advantages in terms of their stability in food matrices.
  • 1.9K
  • 10 Jun 2021
Topic Review
The Normative World of Memes
Social media has become a fundamental platform where users interact and promote public values. Memetics facilitates this phenomenon. Memes have three main characteristics: (1) Diffuse at the micro-level but shape the macrostructure of society; (2) Are based on popular culture; (3) Travel through competition and selection. The findings suggest that, during a public discussion, it is common to use humor based on popular culture to question authority. Furthermore, a message becomes a meme when it evidences the gap between reality and expectations (normativity).
  • 1.9K
  • 11 Jan 2022
Topic Review
Net Primary Productivity of Forest Ecosystems in Karst
The net primary productivity (NPP) of forest ecosystems is an important factor for understanding the carbon budget of forest ecosystems. There have been many studies on the spatialtemporal characteristics and change trends of the NPP in southwest areas based on observation and remote sensing models. With serious water and soil loss and rocky desertification the environment has become sensitive and fragile, so karst areas have become one of the most vulnerable ecological areas in China. The delicate ecological environment and frequent human activities make it difficult to restore the vegetation in the karst area once it is damaged; the damage affects ecosystem services and other functions and leads to fluctuations in the carbon sequestration and sink enhancement capacity in the area. Therefore, combining, analyzing and summarizing the research regarding forest NPP in karst areas is of great importance for improving the estimation accuracy and assessment of carbon storage and sequestration potential in this area.
  • 1.9K
  • 14 Sep 2022
Topic Review
Diversity (Business)
The business case for diversity stems from the progression of the models of diversity within the workplace since the 1960s. In the United States, the original model for diversity was situated around affirmative action drawing from equal opportunity employment objectives implemented in the Civil Rights Act of 1964. Equal employment opportunity was centered around the idea that any individual academically or physically qualified for a specific job could strive for (and possibly succeed) at obtaining the said job without being discriminated against based on identity. This compliance-based model gave rise to the idea that tokenism was the reason an individual was hired into a company when they differed from the dominant group. Dissatisfaction from minority groups eventually altered and/or raised the desire to achieve perfect employment opportunities in every job. The social justice model evolved next and extended the idea that individuals outside the dominant group should be given opportunities within the workplace, not only because it was instituted as a law, but because it was the right thing to do. Kevin Sullivan an ex-vice president of Apple Inc. said that "diversity initiatives must be sold as business, not social work." This model still revolved around the idea of tokenism, but it also brought in the notion of hiring based on a "good fit".In the deficit model, it is believed that organizations that do not have a strong diversity inclusion culture will invite lower productivity, higher absenteeism, and higher turnover which will result in higher costs to the company. Establishments with more diversity are less likely to have successful unionization attempts.
  • 1.9K
  • 02 Nov 2022
Topic Review
Allan Hills 84001
Allan Hills 84001 (ALH84001) is a fragment of a Martian meteorite that was found in the Allan Hills in Antarctica on December 27, 1984, by a team of American meteorite hunters from the ANSMET project. Like other members of the shergottite–nakhlite–chassignite (SNC) group of meteorites, ALH84001 is thought to have originated on Mars. However, it does not fit into any of the previously discovered SNC groups. Its mass upon discovery was 1.93 kilograms (4.3 lb). In 1996, a group of scientists found evidence of microscopic fossils of bacteria in the meteorite, suggesting that these organisms also originated on Mars. The claims immediately made headlines worldwide, culminating in then-U.S. president Bill Clinton giving a speech about the potential discovery. These claims were controversial from the beginning, and the wider scientific community ultimately rejected the hypothesis once all the unusual features in the meteorite had been explained without requiring life to be present. Despite there being no convincing evidence of Martian life, the initial paper and the enormous scientific and public attention caused by it are considered turning points in the history of the developing science of astrobiology.
  • 1.9K
  • 22 Nov 2022
Biography
Dorothy J. Phillips
Dorothy Jean Phillips (née Wingfield) (born July 27, 1945) is an African-American Chemist and Director-at-Large of the American Chemical Society. She worked on circular dichroism and bioseparation. In 1967 Phillips was the first African-American woman to complete a bachelor's degree at Vanderbilt University. Phillips grew up in segregation in the southern United States.[1] She was one of eig
  • 1.9K
  • 01 Dec 2022
Topic Review
Computer Vision Applications in Intelligent Transportation Systems
As technology continues to develop, computer vision (CV) applications are becoming increasingly widespread in the intelligent transportation systems (ITS) context. These applications are developed to improve the efficiency of transportation systems, increase their level of intelligence, and enhance traffic safety. Advances in CV play an important role in solving problems in the fields of traffic monitoring and control, incident detection and management, road usage pricing, and road condition monitoring, among many others, by providing more effective methods.
  • 1.9K
  • 21 Mar 2023
Topic Review
Immigrant Experiences of Primary Health-Care
Access to primary health care (PHC) services is a right for all individuals and communities. Adequate access to quality care in PHC is crucial to everyone, however, equal and equitable access to healthcare for all individuals in society is still a matter of great concern in many countries across the world. Immigrants in particular face unique challenges in accessibility and usability of basic healthcare services, especially when moving to a more developed nation. These challenges are often driven by factors such as differing culture, language, economy, literacy, social relations, and exposure to a new and unknown healthcare structure. Understanding these social and cultural determinants of health is a necessary foundation for developing an effective and efficient primary healthcare system. This study explores patient experiences in primary care from the perspective of immigrant communities and identifies areas for further research and improvement.
  • 1.9K
  • 12 Dec 2020
Topic Review
Lingonberry (Vaccinium vitis-idaea L.)
Lingonberry (Vaccinium vitis-idaea L.) is a health-promoting small fruit crop rich in antioxidant metabolites that helps to reduce the incidence of degenerative diseases. Being heterozygous, lingonberries cannot preserve genetic characteristics through seed propagation. Conventional vegetative propagation, although it produces true-to-type plants, is not economically viable. In vitro propagation can multiply plants much faster than conventional methods. A liquid cultures system under a bioreactor micropropagation system is of significant importance to increase the multiplication rates of in vitro-produced shoots. Enhanced vegetative growth and variation in biochemical constituents are observed in micropropagated plants. Clonal fidelity, although it may be a serious problem for commercial micropropagation, can be verified efficiently by molecular markers.
  • 1.9K
  • 09 Jun 2021
Topic Review
Understanding Apple Attribute Preferences of US Consumers
Fresh apples are a commonly consumed and widely available product in food markets around the world.
  • 1.9K
  • 17 Jan 2022
Topic Review
Burnout
Maslach et al. initially conceptualized burnout as a psychological state encompassing exhaustion, depersonalization (or cynicism), and a reduced sense of professional efficacy. However, Schaufeli et al. recently proposed an improved definition of burnout, as a syndrome reflecting: “a work-related state of exhaustion that occurs among employees, which is characterized by extreme tiredness, reduced ability to regulate cognitive and emotional processes, and mental distancing” (p. 4). This new definition excludes the professional efficacy component, which has been empirically found to be distinct from burnout. More generally, burnout seems to be primarily characterized by a state of work-related exhaustion and is generally acknowledged by researchers, clinicians, and the public as a pervasive occupational difficulty. However, and despite this widespread recognition, longstanding debates remain within the scientific community regarding the appropriateness of classifying burnout as its own pathological entity. 
  • 1.9K
  • 24 Apr 2022
Topic Review
Plasminogen Activator Inhibitor-1
Plasminogen activator inhibitor-1 (PAI-1), the primary inhibitor of tissue-type plasminogen activator (tPA) and urinary-type plasminogen activator (uPA), is a key regulator of fibrinolysis and cell migration. Indeed, elevated PAI-1 expression is associated with major cardiovascular adverse events that have been attributed to its antifibrinolytic activity. However, extensive evidence indicates that PAI-1 can induce endothelial dysfunction and atherosclerosis through complex interactions within the vasculature in an antifibrinolytic-independent matter.
  • 1.9K
  • 01 Jun 2022
Topic Review
Iconic Memory
Iconic memory is the visual sensory memory register pertaining to the visual domain and a fast-decaying store of visual information. It is a component of the visual memory system which also includes visual short-term memory (VSTM) and long-term memory (LTM). Iconic memory is described as a very brief (
  • 1.9K
  • 07 Oct 2022
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