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German Question
"The German Question" was a debate in the 19th century, especially during the Revolutions of 1848, over the best way to achieve a unification of all or most lands inhabited by Germans. From 1815 to 1866, about 37 independent German-speaking states existed within the German Confederation. The Großdeutsche Lösung ("Greater German solution") favored unifying all German-speaking peoples under one state, and was promoted by the Austrian Empire and its supporters. The Kleindeutsche Lösung ("Little German solution") sought only to unify the northern German states and did not include any part of Austria (either its German-inhabited areas or its areas dominated by other ethnic groups); this proposal was favored by the Kingdom of Prussia. The solutions are also referred to by the names of the states they proposed to create, Kleindeutschland and Großdeutschland ("Little Germany" and "Greater Germany"). Both movements were part of a growing German nationalism. They also drew upon similar contemporary efforts to create a unified nation state of people who shared a common ethnicity and language, such as the unification of Italy by the House of Savoy and the Serbian Revolution. During the Cold War, the term also referred to the matters pertaining to the division, and re-unification, of Germany.
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  • 21 Nov 2022
Topic Review
Eukaryotic Ribosome (80S)
Ribosomes are a large and complex molecular machine that catalyzes the synthesis of proteins, referred to as translation. The ribosome selects aminoacylated transfer RNAs (tRNAs) based on the sequence of a protein-encoding messenger RNA (mRNA) and covalently links the amino acids into a polypeptide chain. Ribosomes from all organisms share a highly conserved catalytic center. However, the ribosomes of eukaryotes (animals, plants, fungi, and many unicellular organisms with a nucleus) are much larger than prokaryotic (bacterial and archaeal) ribosomes and subject to more complex regulation and biogenesis pathways. Eukaryotic ribosomes are also known as 80S ribosomes, referring to their sedimentation coefficients in Svedberg units, because they sediment faster than the prokaryotic (70S) ribosomes. Eukaryotic ribosomes have two unequal subunits, designated small subunit (40S) and large subunit (60S) according to their sedimentation coefficients. Both subunits contain dozens of ribosomal proteins arranged on a scaffold composed of ribosomal RNA (rRNA). The small subunit monitors the complementarity between tRNA anticodon and mRNA, while the large subunit catalyzes peptide bond formation.
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  • 14 Apr 2023
Topic Review
Deep Eutectic Solvents (DES)
Deep eutectic solvent (DES) are a highly non-ideal mixture of two biodegradable components (HBA and HBD) associated with strong hydrogen bonding interactions. 
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  • 08 Mar 2022
Topic Review
Commune (Model of Government)
The commune, as a model of government, is generally advocated by some communists, revolutionary socialists, and anarchists. Communes are an organizational community with social cohesion derived from a shared culture. As a governing community, a commune often entails some degree of local governance, communal ownership, and cultural cohesion. However, models that do not include all three aspects may still be described as communes. At its core, a commune is just an organization which creates social conditions that prioritize the primacy of the collective over the individual. Many different forms of commune-based governments are possible, such as a local and sovereign community which is both a microstate and a nation-state, a federated commune which lacks a degree of sovereignty under the rule of a larger state, or a larger national community which focuses more on aspects of communal ownership rather than communal governance.
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  • 09 Nov 2022
Topic Review
VARTM Processed Composite Materials
Fiber-reinforced composite structures are used in different applications due to their excellent strength to weight ratio. Due to cost and tool handling issues in conventional manufacturing processes, like resin transfer molding (RTM) and autoclave, vacuum-assisted resin transfer molding (VARTM) is the best choice among industries. VARTM is highly productive and cheap. However, the VARTM process produces complex, lightweight, and bulky structures, suitable for mass and cost-effective production, but the presence of voids and fiber misalignment in the final processed composite influences its strength. Voids are the primary defects, and they cannot be eliminated completely, so a design without considering void defects will entail unreliability. Many conventional failure theories were used for composite design but did not consider the effect of voids defects, thus creating misleading failure characteristics.
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  • 07 Apr 2021
Topic Review
Democratic Socialism
Democratic socialism is a political philosophy that supports political democracy and some form of a socially owned economy,({{{1}}}, {{{2}}}) with a particular emphasis on economic democracy, workplace democracy, and workers' self-management within a market socialist economy, or an alternative form of decentralised planned socialist economy. Democratic socialists argue that capitalism is inherently incompatible with the values of freedom, equality, and solidarity and that these ideals can only be achieved through the realisation of a socialist society. Although most democratic socialists seek a gradual transition to socialism,({{{1}}}, {{{2}}}) democratic socialism can support either revolutionary or reformist politics as means to establish socialism.({{{1}}}, {{{2}}}) Democratic socialism was popularized by socialists who were opposed to the backsliding towards a one-party state in the Soviet Union and other nations during the 20th century.({{{1}}}, {{{2}}}) The history of democratic socialism can be traced back to 19th-century socialist thinkers across Europe and the Chartist movement in Britain, which somewhat differed in their goals but shared a common demand of democratic decision making and public ownership of the means of production, and viewed these as fundamental characteristics of the society they advocated for. In the late 19th to the early 20th century, democratic socialism was also heavily influenced by the gradualist form of socialism promoted by the British Fabian Society and Eduard Bernstein's evolutionary socialism in Germany.({{{1}}}, {{{2}}}) Democratic socialism is what most socialists understand by the concept of socialism;({{{1}}}, {{{2}}}) it may be a very broad (socialists who reject a one-party Marxist–Leninist state)({{{1}}}, {{{2}}}) or more limited concept (post-war social democracy).({{{1}}}, {{{2}}}) As a broad movement, it includes forms of libertarian socialism,({{{1}}}, {{{2}}}) market socialism,({{{1}}}, {{{2}}}) reformist socialism, and revolutionary socialism,({{{1}}}, {{{2}}}) as well as ethical socialism,({{{1}}}, {{{2}}}) liberal socialism,({{{1}}}, {{{2}}}) social democracy,({{{1}}}, {{{2}}}) and some forms of state socialism and utopian socialism, all of which share commitment to democracy.({{{1}}}, {{{2}}}) Democratic socialism is contrasted with Marxism–Leninism, which opponents often perceive as being authoritarian and undemocratic in practice.({{{1}}}, {{{2}}}) Democratic socialists oppose the Stalinist political system and the Soviet-type economic planning system, rejecting as their form of governance the administrative-command system that formed in the Soviet Union and other Marxist–Leninist states during the 20th century. Democratic socialism is also distinguished from Third Way social democracy[nb 1] on the basis that democratic socialists are committed to systemic transformation of the economy from capitalism to socialism.[nb 2] While having socialism as a long-term goal,({{{1}}}, {{{2}}}) some moderate democratic socialists are more concerned about curbing capitalism's excesses, and are supportive of progressive reforms to humanise it in the present day,({{{1}}}, {{{2}}}) while other democratic socialists believe that economic interventionism and similar policy reforms aimed at addressing social inequalities and suppressing the economic contradictions of capitalism would only exacerbate the contradictions,({{{1}}}, {{{2}}}) causing them to emerge elsewhere under a different guise.({{{1}}}, {{{2}}}) Those democratic socialists believe that the fundamental issues with capitalism are systemic in nature, and can only be resolved by replacing the capitalist mode of production with the socialist mode of production through the replacement of private ownership with collective ownership of the means of production, and extending democracy to the economic sphere in the form of industrial democracy.({{{1}}}, {{{2}}}) The main criticism of democratic socialism is focused on the compatibility of democracy and socialism. Several academics and political commentators tend to distinguish between authoritarian socialism and democratic socialism as a political ideology, with the first representing the Soviet Bloc, and the latter representing the democratic socialist parties in the Western Bloc countries that have been democratically elected in countries such as Britain, France, and Sweden, among others.({{{1}}}, {{{2}}}) However, following the end of the Cold War, many of these countries have moved away from socialism as a neoliberal consensus replaced the social democratic consensus in the advanced capitalist world.
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  • 17 Oct 2022
Topic Review
Copper Heap Leaching
Heap leaching is a firm extractive metallurgical technology facilitating the economical processing of different kinds of low-grade ores that are otherwise not exploited.
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  • 13 Oct 2021
Topic Review
Schizoid Personality Disorder
Schizoid personality disorder (/ˈskɪtsɔɪd, ˈskɪdzɔɪd/, often abbreviated as SPD or SzPD) is a personality disorder characterized by a lack of interest in social relationships, a tendency toward a solitary or sheltered lifestyle, secretiveness, emotional coldness, detachment and apathy. Affected individuals may be unable to form intimate attachments to others and simultaneously possess a rich and elaborate but exclusively internal fantasy world. Other associated features include stilted speech, a lack of deriving enjoyment from most activities, feeling as though one is an "observer" rather than a participant in life, an inability to tolerate emotional expectations of others, apparent indifference when praised or criticized, a degree of asexuality, and idiosyncratic moral or political beliefs. Symptoms typically start in late childhood or adolescence. The cause of SPD is uncertain, but there is some evidence of links and shared genetic risk between SPD, other cluster A personality disorders (such as schizotypal personality disorder) and schizophrenia. Thus, SPD is considered to be a "schizophrenia-like personality disorder". It is diagnosed by clinical observation, and it can be very difficult to distinguish SPD from other mental disorders (such as autism spectrum disorder, with which it may sometimes overlap). The effectiveness of psychotherapeutic and pharmacological treatments for the disorder has yet to be empirically and systematically investigated. This is largely because people with SPD rarely seek treatment for their condition. Originally, low doses of atypical antipsychotics were also used to treat some symptoms of SPD, but their use is no longer recommended. The substituted amphetamine bupropion may be used to treat associated anhedonia. However, it is not general practice to treat SPD with medications, other than for the short-term treatment of acute co-occurring disorders (e.g. depression). Talk therapies such as cognitive behavioral therapy (CBT) may not be effective, because people with SPD may have a hard time forming a good working relationship with a therapist. SPD is a poorly studied disorder, and there is little clinical data on SPD because it is rarely encountered in clinical settings. Studies have generally reported a prevalence of less than 1% It is more common in males than in females. SPD is linked to negative outcomes, including a significantly compromised quality of life, reduced overall functioning even after 15 years and one of the lowest levels of "life success" of all personality disorders (measured as "status, wealth and successful relationships"). Bullying is particularly common towards schizoid individuals. Suicide may be a running mental theme for schizoid individuals, though they are not likely to actually attempt it. Some symptoms of SPD (e.g. solitary lifestyle and emotional detachment), however, have been stated as general risk factors for serious suicidal behaviour.
  • 4.6K
  • 20 Oct 2022
Topic Review
Hydrogen Storage Technologies
Storage is an essential topic when it comes to hydrogen integration in distribution networks and large-scale applications; the existence of a robust and reliable way of storing this energy vector is crucial to addressing the current potential demand for hydrogen in the energy market. Many forms of storage have been developed, which can mainly be divided into Physical-based and Material-based approaches. Physical storage includes compressed gas, liquid, and cryo-compressed hydrogen, and it is the most widely used storage type among these systems. 
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  • 26 May 2022
Topic Review
Muhammad Ibn Musa Al-Khwarizmi
Muḥammad ibn Mūsā al-Khwārizmī (Persian: محمد بن موسی خوارزمی‎, romanized: Moḥammad ben Musā Khwārazmi; c. 780 – c. 850), or al-Khwarizmi and formerly Latinized as Algorithmi, was a Persian polymath who produced vastly influential works in mathematics, astronomy, and geography. Around 820 CE he was appointed as the astronomer and head of the library of the House of Wisdom in Baghdad.:14 Al-Khwarizmi's popularizing treatise on algebra (The Compendious Book on Calculation by Completion and Balancing, c. 813–833 CE:171) presented the first systematic solution of linear and quadratic equations. One of his principal achievements in algebra was his demonstration of how to solve quadratic equations by completing the square, for which he provided geometric justifications.:14 Because he was the first to treat algebra as an independent discipline and introduced the methods of "reduction" and "balancing" (the transposition of subtracted terms to the other side of an equation, that is, the cancellation of like terms on opposite sides of the equation), he has been described as the father or founder of algebra. The term algebra itself comes from the title of his book (the word al-jabr meaning "completion" or "rejoining"). His name gave rise to the terms algorism and algorithm, as well as Spanish and Portuguese terms algoritmo, and Spanish guarismo and Portuguese algarismo meaning "digit". In the 12th century, Latin translations of his textbook on arithmetic (Algorithmo de Numero Indorum) which codified the various Indian numerals, introduced the decimal positional number system to the Western world. The Compendious Book on Calculation by Completion and Balancing, translated into Latin by Robert of Chester in 1145, was used until the sixteenth century as the principal mathematical text-book of European universities. In addition to his best-known works, he revised Ptolemy's Geography, listing the longitudes and latitudes of various cities and localities.:9 He further produced a set of astronomical tables and wrote about calendaric works, as well as the astrolabe and the sundial. He also made important contributions to trigonometry, producing accurate sine and cosine tables, and the first table of tangents.
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  • 10 Oct 2022
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