Social network analysisSocial network analysis (SNA) is the process of investigating social structures through the use of networks and graph theory. It characterizes networked structures in terms of nodes (individual actors, people, or things within the network) and the ties, edges, or links (relationships or interactions) that connect them. Examples of social structures commonly visualized through social network analysis include social media networks, meme spread, information circulation, friendship and acquaintance networks, peer learner networks, business networks, knowledge networks, difficult working relationships, collaboration graphs, kinship, disease transmission, and sexual relationships.
Liberal democracyLiberal democracy or western democracy is the combination of a liberal political philosophy that operates under a representative democratic form of government. It is characterized by elections between multiple distinct political parties, a separation of powers into different branches of government, the rule of law in everyday life as part of an open society, a market economy with private property, universal suffrage, and the equal protection of human rights, civil rights, civil liberties and political freedoms for all people.
Compulsory votingCompulsory voting, also called universal civic duty voting or mandatory voting, is the requirement that registered voters participate in an election. In practice, one only needs to check-in at a polling place, submit a blank ballot, or provide an excused reason, such as disability, illness, age, travel, a natural disaster, or religious objections. 21 countries, including 11 in Latin America, had compulsory voting laws as of January 2023, with the countries enforcing their laws having much higher turnout (high 80's vs.
Identity politicsIdentity politics is politics based on a particular identity, such as race, nationality, religion, gender, sexual orientation, social background, social class. Depending on which definition of identity politics is assumed, the term could also encompass other social phenomena which are not commonly understood as exemplifying identity politics, such as governmental migration policy that regulates mobility based on identities, or far-right nationalist agendas of exclusion of national or ethnic others.
Population geneticsPopulation genetics is a subfield of genetics that deals with genetic differences within and among populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation, speciation, and population structure. Population genetics was a vital ingredient in the emergence of the modern evolutionary synthesis. Its primary founders were Sewall Wright, J. B. S. Haldane and Ronald Fisher, who also laid the foundations for the related discipline of quantitative genetics.
Proxy votingProxy voting is a form of voting whereby a member of a decision-making body may delegate their voting power to a representative, to enable a vote in absence. The representative may be another member of the same body, or external. A person so designated is called a "proxy" and the person designating them is called a "principal". Proxy appointments can be used to form a voting bloc that can exercise greater influence in deliberations or negotiations.
Current sourceA current source is an electronic circuit that delivers or absorbs an electric current which is independent of the voltage across it. A current source is the dual of a voltage source. The term current sink is sometimes used for sources fed from a negative voltage supply. Figure 1 shows the schematic symbol for an ideal current source driving a resistive load. There are two types. An independent current source (or sink) delivers a constant current. A dependent current source delivers a current which is proportional to some other voltage or current in the circuit.
Divergent evolutionDivergent evolution or divergent selection is the accumulation of differences between closely related populations within a species, sometimes leading to speciation. Divergent evolution is typically exhibited when two populations become separated by a geographic barrier (such as in allopatric or peripatric speciation) and experience different selective pressures that drive adaptations to their new environment. After many generations and continual evolution, the populations become less able to interbreed with one another.
Democratic backslidingDemocratic backsliding, also called autocratization, is "a process of regime change towards autocracy that makes the exercise of political power more arbitrary and repressive and that restricts the space for public contestation and political participation in the process of government selection". Democratic decline involves the weakening of democratic institutions, such as the peaceful transition of power or free and fair elections, or the violation of individual rights that underpin democracy, especially freedom of expression.
InstitutionInstitutions (singular: institution) are humanly devised structures of rules and norms that shape and constrain individual behavior. All definitions of institutions generally entail that there is a level of persistence and continuity. Laws, rules, social conventions and norms are all examples of institutions. Institutions vary in their level of formality and informality. Institutions are a principal object of study in social sciences such as political science, anthropology, economics, and sociology (the latter described by Émile Durkheim as the "science of institutions, their genesis and their functioning").
