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Topic Review
Okra
Okra (Abelmoschus esculentus L.) is a popular vegetable crop with good nutritional significance, along with certain therapeutic values, which makes it a potential candidate in the use of a variety of nutraceuticals.
  • 4.7K
  • 16 Mar 2021
Topic Review
Polymers in Wastewater Treatment
The utilization of various types of natural and modified polymers for removing toxicant dyes in wastewater generated by the dye industry is reviewed in this article. Dye wastewater contains large amounts of metals, surfactants, and organic matter, which have adverse effects on human health, potentially causing skin diseases and respiratory problems. The removal of dyes from wastewaters through chemical and physical processes has been addressed by many researchers. Currently, the use of natural and modified polymers for the removal of dyes from wastewater is becoming more common. Although modified polymers are preferred for the removal of dyes, due to their biodegradability and non-toxic nature, large amounts of polymers are required, resulting in higher costs. 
  • 4.7K
  • 20 Oct 2020
Topic Review
Small and Medium Enterprises (SMEs) Performance
SMEs are one of the business entities that make a significant contribution to economic conditions in Indonesia. This is the reason why information about the condition and presence of SMEs is important data for the government as an indicator for Indonesia’s economic conditions, especially during the COVID-19 pandemic. 
  • 4.7K
  • 23 May 2022
Topic Review Peer Reviewed
Tourism Destination Marketing: Academic Knowledge
A holistic, multi-organization view of marketing or destination management organizations (DMOs) who must muster the best efforts of many partner organizations and individuals (stakeholders) to have the greatest success. Destination marketing is described as “a continuous, sequential process through which a DMO plans, researches, implements, controls and evaluates programs aimed at satisfying tourists’ needs and wants as well as the destination’s and DMO’s visions, goals and objectives”. The effectiveness of marketing activities depends on the efforts and plans of tourism suppliers and other entities. This definition posits that marketing is a managerial function/domain that should be performed in a systematic manner adopting and implementing the appropriate approaches, as well as suitable tools and methods. In doing so, it is believed that a tourism destination (through the organizational structure of a DMO) can attain the expected outputs beneficial to all stakeholders, i.e., the tourism industry, hosting communities/populations, and tourists/visitors. The effective implementation of tourism destination marketing principles and methods constitutes an efficient and smart pillar, a cornerstone to attain a balance/equilibrium between the perceptions and interests, sometimes conflicting, of stakeholders by minimizing the negative impacts and maximizing the benefits resulting from tourism. All the same, it is worth noting that marketing is not a panacea, nor a kind of magic stick. 
  • 4.7K
  • 13 Apr 2022
Topic Review
Proofs of Fermat's Theorem on Sums of Two Squares
Fermat's theorem on sums of two squares asserts that an odd prime number p can be expressed as with integer x and y if and only if p is congruent to 1 (mod 4). The statement was announced by Girard in 1625, and again by Fermat in 1640, but neither supplied a proof. The "only if" clause is easy: a perfect square is congruent to 0 or 1 modulo 4, hence a sum of two squares is congruent to 0, 1, or 2. An odd prime number is congruent to either 1 or 3 modulo 4, and the second possibility has just been ruled out. The first proof that such a representation exists was given by Leonhard Euler in 1747 and was complicated. Since then, many different proofs have been found. Among them, the proof using Minkowski's theorem about convex sets and Don Zagier's short proof based on involutions have appeared.
  • 4.7K
  • 11 Nov 2022
Topic Review
Man-Eating Plant
A man-eating plant is a legendary carnivorous plant large enough to kill and consume a human or other large animal. Various such myths and fictional tales exist around the world.
  • 4.7K
  • 17 Nov 2022
Topic Review
Composite Structures
Common types of engineering materials include metals, polymers, ceramics, and composites. Among these, composite materials are often a better alternative for traditional materials, such as metals, ceramics, and polymers due to their light weight, corrosion resistance, high strength and stiffness, ability to withstand high temperatures, and simple manufacturing process. Composite structures are used in a range of different industries from aerospace, marine, aviation, transport, and sports/leisure to civil engineering. For example, advanced composite materials have been used in different structures regarding the above industries, such as rotor blades, aircraft main body, and wing skins.
  • 4.7K
  • 28 Mar 2022
Biography
Nasir Al-Din Al-Tusi
Muhammad ibn Muhammad ibn al-Hasan al-Tūsī (Persian: محمد ابن محمد ابن حسن طوسی‎ 18 February 1201 – 26 June 1274), better known as Nasir al-Din al-Tusi (Persian: نصیر الدین طوسی‎; or simply Tusi /ˈtuːsi/[1] in the West), was a Persian polymath, architect, philosopher, physician, scientist, and theologian.[2] Nasir al-Din al-Tusi was a well published a
  • 4.7K
  • 22 Nov 2022
Topic Review
Ancient Mithila University
Ancient Mithila University was an ancient university and was famous for Nyaya Shastra and logical sciences.
  • 4.7K
  • 18 Oct 2022
Topic Review
Bell Peppers (Capsicum annum L.)
The bell pepper is highly consumed worldwide due to its exotic colors (green, red, yellow, orange, and purple), flavor, and nutritional value. However, after processing bell pepper products, waste remains (seeds, peel, stem, and leaves), representing desirable raw material to obtain phytochemical compounds. They contain diverse bioactive compounds with interesting biological activities (in vivo and in vitro) and applications.
  • 4.7K
  • 22 Oct 2021
Topic Review
Wife
A wife is a female partner in a continuing marital relationship. The term continues to be applied to a woman who has separated from her partner, and ceases to be applied to such a woman only when her marriage has come to an end, following a legally recognized divorce or the death of her spouse. On the death of her partner, a wife is referred to as a widow, but not after she is divorced from her partner. The rights and obligations of a wife in relation to her partner and her status in the community and in law vary between cultures and have varied over time.
  • 4.7K
  • 17 Nov 2022
Topic Review
Shotgun Wedding
A shotgun wedding is a wedding that is arranged to avoid embarrassment due to premarital sex possibly leading to an unintended pregnancy, rather than out of the desire of the participants. The phrase is a primarily American colloquialism, termed as such based on a stereotypical scenario where the father of the pregnant bride-to-be threatens the reluctant groom with a shotgun to ensure that he follows through with the wedding.
  • 4.7K
  • 25 Nov 2022
Topic Review
Digital professionalism
Digital professionalism is the term used to describe the emergence of health professionals needing to understand, develop and know appropriate professional behaviour when using digital media. There is currently no accepted or standard definition of this term. The development of digital professionalism is a global issue, which is demonstrated by the growth in research of portable or mobile devices, social media, apps and messaging within health professional higher education and healthcare environments. Digital professionalism is a component of professional identity formation. The knowledge, skills, attitudes and behaviours associated with developing digital professionalism needs to be introduced early in the health professional curriculum, so that students understand the benefits as well as the risks and challenges of using digital technology at point of care. Modelling of safe, effective and appropriate access and use of mobile or portable devices by qualified health professionals is essential for scaffolding undergraduate health professionals understanding and development of appropriate attributes, to promote formation of positive professional identity when undertaking work integrated learning or professional experience in healthcare environments.
  • 4.7K
  • 28 Oct 2020
Topic Review
Antioxidants
There are established links between free radicals and more than sixty different human health conditions, including ageing, cancer, diabetes, Alzheimer’s disease, strokes, heart attacks, and atherosclerosis. Consumption of higher levels of dietary antioxidant enzymes and antioxidant molecules-enriched food or antioxidant supplements has been found to reduce the risk of free radical-related health issues. The green halotolerant microalgae Dunaliella can grow in a wide range of saline environments and is a  potential natural source for antioxidant production.
  • 4.7K
  • 10 May 2021
Topic Review
Internet of Things
The Internet of Things (IoT) refers to a system of interrelated, internet-connected objects that are able to collect and transfer data over a wireless network without human intervention. The term IoT has been considered as an expanding technique applied in various applications and functions, from smart environments and houses to personal healthcare and others [1]. It is described as a smart concept for the internet relating everything to the Internet and data organization and information exchange [2]. The key features required for employing a large-scale IoT are low-cost sensors, highspeed and error-tolerant data communications, smart computations, and numerous applications.
  • 4.7K
  • 26 Oct 2020
Topic Review
Space Shuttle Main Engine
The Aerojet Rocketdyne RS-25, otherwise known as the Space Shuttle main engine (SSME), is a liquid-fuel cryogenic rocket engine that was used on NASA's Space Shuttle and is planned to be used on its successor, the Space Launch System. Designed and manufactured in the United States by Rocketdyne (later known as Pratt & Whitney Rocketdyne and Aerojet Rocketdyne), the RS-25 burns cryogenic liquid hydrogen and liquid oxygen propellants, with each engine producing 1,859 kN (418,000 lbf) of thrust at liftoff. Although the RS-25 can trace its heritage back to the 1960s, concerted development of the engine began in the 1970s, with the first flight, STS-1, occurring on April 12, 1981. The RS-25 has undergone several upgrades over its operational history to improve the engine's reliability, safety, and maintenance load. Subsequently, the RS-25D is the most efficient liquid fuel rocket engine currently in use. The engine produces a specific impulse (Isp) of 452 seconds (4.43 km/s) in a vacuum, or 366 seconds (3.59 km/s) at sea level, has a mass of approximately 3.5 tonnes (7,700 pounds), and is capable of throttling between 67% and 109% of its rated power level in one-percent increments. The RS-25 operates at temperatures ranging from −253 °C (−423 °F) to 3300 °C (6000 °F). The Space Shuttle used a cluster of three RS-25 engines mounted in the stern structure of the orbiter, with fuel being drawn from the external tank. The engines were used for propulsion during the entirety of the spacecraft's ascent, with additional thrust being provided by two solid rocket boosters and the orbiter's two AJ-10 orbital maneuvering system engines. Following each flight, the RS-25 engines were removed from the orbiter, inspected, and refurbished before being reused on another mission.
  • 4.6K
  • 24 Oct 2022
Topic Review
Pigmentary and Structural Coloration in Nature
Most of us get inspired by and interact with the world around us based on visual cues such as the colors and patterns that we see. In nature, coloration takes three primary forms: pigmentary coloration, structural coloration, and bioluminescence. Typically, pigmentary and structural coloration are used by animals and plants for their survival. These forms of coloration are enabled by a variety of intracellular biophotonic structures.
  • 4.6K
  • 09 Jun 2022
Topic Review
Overview of Polylactic Acid
Poly(lactic acid) (PLA) is an important polymer that is based on renewable biomass resources. Because of environmental issues, more renewable sources for polymers synthesis have been sought for industrial purposes.
  • 4.6K
  • 20 Jul 2022
Topic Review
Turing Reduction
In computability theory, a Turing reduction from a problem A to a problem B, is a reduction which solves A, assuming the solution to B is already known (Rogers 1967, Soare 1987). It can be understood as an algorithm that could be used to solve A if it had available to it a subroutine for solving B. More formally, a Turing reduction is a function computable by an oracle machine with an oracle for B. Turing reductions can be applied to both decision problems and function problems. If a Turing reduction of A to B exists then every algorithm for B can be used to produce an algorithm for A, by inserting the algorithm for B at each place where the oracle machine computing A queries the oracle for B. However, because the oracle machine may query the oracle a large number of times, the resulting algorithm may require more time asymptotically than either the algorithm for B or the oracle machine computing A, and may require as much space as both together. The first formal definition of relative computability, then called relative reducibility, was given by Alan Turing in 1939 in terms of oracle machines. Later in 1943 and 1952 Stephen Kleene defined an equivalent concept in terms of recursive functions. In 1944 Emil Post used the term "Turing reducibility" to refer to the concept. A polynomial-time Turing reduction is known as a Cook reduction, after Stephen Cook.
  • 4.6K
  • 14 Oct 2022
Topic Review
Basalt
Basalt (/bəˈsɔːlt, ˈbæsɒlt, -sɔːlt/) is a mafic extrusive igneous rock formed from the rapid cooling of magnesium-rich and iron-rich lava exposed at or very near the surface of a terrestrial planet or a moon. More than 90% of all volcanic rock on Earth is basalt. Basalt lava has a low viscosity, due to its low silica content, resulting in rapid lava flows that can spread over great areas before cooling and solidification. Flood basalt describes the formation in a series of lava basalt flows.
  • 4.6K
  • 09 Nov 2022
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