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Working memory as a temporary buffer for cognitive processing is an essential part of the cognitive system. Its capacity and select aspects of its functioning are age sensitive, more so for spatial than verbal material. Assumed causes for this decline include a decline in cognitive resources (such as speed of processing), and/or a breakdown in basic control processes (resistance to interference, task coordination, memory updating, binding, and/or top-down control as inferred from neuroimaging data). Meta-analyses suggest that a decline in cognitive resources explains much more of the age-related variance in true working memory tasks than a breakdown in basic control processes, although the latter is highly implicated in tasks of passive storage. The age-related decline in working memory capacity has downstream effects on more complex aspects of cognition (episodic memory, spatial cognition, and reasoning ability). Working memory remains plastic in old age, and training in working memory and cognitive control processes yields near transfer effects, but little evidence for strong far transfer.
Mariana P. Candido
European colonial powers established the contemporary boundaries of Angola during the Conference of Berlin (1884–1885). However, colonialism dates to the 15th century, when Portuguese merchants first contacted the Kingdom of Kongo along the Congo River and established early settlements in Luanda (1575) and Benguela (1617). Parts of the territories that became known as Angola in the early 20th century have a long history of interaction with the outside world, and as a result European primary sources provide much of the information available to historians. The reports, official correspondence, and diaries were produced by European men and are therefore problematic. However, by reading against the grain scholars can begin to understand how women lived in Angola before the 20th century.
Some, such as Queen Njinga, had access to political power, and others, such as Dona Ana Joaquina dos Santos e Silva, enjoyed great wealth. Kimpa Vita was a prophet who led a movement of political and religious renewal and was killed as a result. Most women never appeared in historical documents but were fundamental to the economic and social existence of their communities as farmers, traders, artisans, mediums, and enslaved individuals. The end of the slave trade in the 1850s led to the expansion of the so-called legitimate trade and plantation economies, which privileged male labor while relying on women’s domestic contributions. The arrival of a larger number of missionaries, colonial troops, and Portuguese settlers by the end of the 19th century resulted in new policies that stimulated migration and family separation. It also introduced new ideas about morality, sexuality, and motherhood. Women resisted and joined anticolonial movements. After independence, decades of civil war increased forced displacement, gender imbalance, and sexual violence. The greater stability at the end of the armed conflict may favor the expansion of women’s organizations and internal pressures to address gender inequalities.
John C. McCall
Motion picture technology developed at the dawn of the 20th century, just as the formal colonization of Africa was launched at the Berlin Conference of 1884–1885. While it took a few decades for cinema houses to spread in West Africa, by mid-century the colonial administrations began to use film as a means for conveying colonial culture to African subjects. For the British and French colonials, film was a means to shape public opinion. Both British and French colonial administrations criminalized indigenous filmmaking for fear of the subversive potential of anti-colonial messages—film communicated in one direction only. When West African nations became independent in the late 20th century, these restrictions vanished and Africans began to make films. This process played out differently in Francophone Africa than in Anglophone countries. France cultivated African filmmakers, sponsored training, and funded film projects. Talented and determined filmmakers in Anglophone Africa also struggled to produce celluloid films, but unlike their counterparts in former French colonies, they received little support from abroad. A significant number of excellent celluloid films were produced under this system, but largely in Francophone Africa. Though many of these filmmakers have gained global recognition, most remained virtually unknown in Africa outside the elite spaces of the FESPACO film festival and limited screenings at French embassies. Though West African filmmakers have produced an impressive body of high-quality work, few Africans beyond the intellectual elite know of Africa’s most famous films. This paradox of a continent with renowned filmmakers but no local film culture began to change in the 1990s when aspiring artists in Nigeria and Ghana began to make inexpensive movies using video technology. Early works were edited on VCRs, but as digital video technology advanced, this process of informal video production quickly spread to other regions. The West African video movie industry has grown to become one of the most prominent, diverse, and dynamic expressions of a pan-African popular culture in Africa and throughout the global diaspora.
During the last three millennia before the Spanish Conquest, the peoples living in the central and southern parts of modern Mexico and the northern part of Central America evolved into complex societies with a number of common characteristics that define the cultural area known as Mesoamerica and are expressed in technology, forms of subsistence, government, architecture, religion, and intellectual achievements, including sophisticated astronomical concepts. For the Aztecs, the Maya, and many other Mesoamerican societies, Venus was one of the most important celestial bodies. Not only were they aware that the brightest “star” appearing in certain periods in the pre-dawn sky was identical to the one that at other times was visible in the evening after sunset; they also acquired quite accurate knowledge about the regularities of the planet’s apparent motion. While Venus was assiduously observed and studied, it also inspired various beliefs, in which its morning and evening manifestations had different attributes. Relevant information is provided by archaeological data, prehispanic manuscripts, early Spanish reports, and ethnographically recorded myths that survive among modern communities as remnants of pre-Conquest tradition.
The best-known is the malevolent aspect of the morning star, whose first appearances after inferior conjunction were believed to inflict harm on nature and humanity in a number of ways. However, the results of recent studies suggest that the prevalent significance of the morning star was of relatively late and foreign origin. The most important aspect of the symbolism of Venus was its conceptual association with rain and maize, in which the evening star had a prominent role. It has also been shown that these beliefs must have been motivated by some observational facts, particularly by the seasonality of evening star extremes, which approximately delimit the rainy season and the agricultural cycle in Mesoamerica. As revealed by different kinds of evidence, including architectural alignments to these phenomena, Venus was one of the celestial agents responsible for the timely arrival of rains, which conditioned a successful agricultural season. The planet also had an important place in the concepts concerning warfare and sacrifice, but this symbolism seems to have been derived from other ideas that characterize Mesoamerican religion. Human sacrifices were believed necessary for securing rain, agricultural fertility, and a proper functioning of the universe in general. Since the captives obtained in battles were the most common sacrificial victims, the military campaigns were religiously sanctioned, and the Venus-rain-maize associations became involved in sacrificial symbolism and warfare ritual. These ideas became a significant component of political ideology, fostered by rulers who exploited them to satisfy their personal ambitions and secular goals. In sum, the whole conceptual complex surrounding the planet Venus in Mesoamerica can be understood in the light of both observational facts and the specific socio-political context.
Amy W. Ando and Noelwah R. Netusil
Green stormwater infrastructure (GSI), a decentralized approach for managing stormwater that uses natural systems or engineered systems mimicking the natural environment, is being adopted by cities around the world to manage stormwater runoff. The primary benefits of such systems include reduced flooding and improved water quality. GSI projects, such as green roofs, urban tree planting, rain gardens and bioswales, rain barrels, and green streets may also generate cobenefits such as aesthetic improvement, reduced net CO2 emissions, reduced air pollution, and habitat improvement. GSI adoption has been fueled by the promise of environmental benefits along with evidence that GSI is a cost-effective stormwater management strategy, and methods have been developed by economists to quantify those benefits to support GSI planning and policy efforts. A body of multidisciplinary research has quantified significant net benefits from GSI, with particularly robust evidence regarding green roofs, urban trees, and green streets. While many GSI projects generate positive benefits through ecosystem service provision, those benefits can vary with details of the location and the type and scale of GSI installation. Previous work reveals several pitfalls in estimating the benefits of GSI that scientists should avoid, such as double counting values, counting transfer payments as benefits, and using values for benefits like avoided carbon emissions that are biased. Important gaps remain in current knowledge regarding the benefits of GSI, including benefit estimates for some types of GSI elements and outcomes, understanding how GSI benefits last over time, and the distribution of GSI benefits among different groups in urban areas.
The Uyghurs comprise a Turkic-speaking and predominantly Muslim nationality of China, with communities living in the independent republics of Central Asia that date to the 19th century, and now a global diaspora. As in the case of many national histories, the consolidation of a Uyghur nation was an early 20th-century innovation, which appropriated and revived the legacy of an earlier Uyghur people in Central Asia. This imagined past was grounded in the history of a Uyghur nomadic state and its successor principalities in Gansu and the Hami-Turfan region (known to Islamic geographers as “Uyghuristan”). From the late 19th century onward, the scholarly rediscovery of a Uyghur past in Central Asia presented an attractive civilizational narrative to Muslim intellectuals across Eurasia who were interested in forms of “Turkist” racial thinking. During the First World War, Muslim émigrés from Xinjiang (Chinese Turkistan) living in Russian territory laid claim to the Uyghur legacy as part of their communal genealogy. This group of budding “Uyghurists” then took advantage of conditions created by the Russian Revolution, particularly in the 1920s, to effect a radical redefinition of the community. In the wake of 1917, Uyghurist discourse was first mobilized as a cultural rallying point for all Muslims with links to China; it was then refracted through the lens of Soviet nationalities policy and made to conform with the Stalinist template of the nation. From Soviet territory, the newly refined idea of a Uyghur nation was exported to Xinjiang through official and unofficial conduits, and in the 1930s the Uyghur identity of Xinjiang’s Muslim majority was given state recognition. Since then, Uyghur nationhood has been a pillar of Beijing’s minzu system but has also provided grounds for opposition to Beijing’s policies, which many Uyghurs feel have failed to realize the rights that should accord to them as an Uyghur nation.
Tamara H. Bentley
In the period from 600
From the late 1970s to its defeat by the Government of Sri Lanka in 2009, the Liberation Tigers of Tamil Eelam (LTTE) fought for Tamil independence in Sri Lanka. The ultimate aim of what was often considered to be one of the world’s most disciplined and efficient insurgency groups was to create an independent Tamil homeland (which they called Tamil Eelam) in the northern and eastern parts of the island. The LTTE based itself on a unique mix of Tamil nationalist, socialist, and feminist visions of a new future for the marginalized Tamil communities of Sri Lanka. The LTTE became feared for its extensive use of suicide missions, carried out by soldiers of both Hindu and Catholic backgrounds. Because of the marginalization of the Tamil-speaking Muslims from the Tamil nationalist project, none of the LTTE soldiers were Muslims. Generally speaking, religion played—and in the 21st century continues to play—a minor role in the ultimate nationalist goal of establishing Tamil Eelam. Tamil nationalism in Sri Lanka centers around Tamil culture, language, literature, and regional identity, not religion. The LTTE’s official ideology was strictly secularist, expressing a clear separation between religion, the state, and politics. The LTTE accepted individual religious practices in its ranks—for example, having a personal crucifix or a holy picture within military camps, but did not facilitate institutionalized religious practice. Yet religious formations, controversies, and practices have been important, if not crucial, to Tamil separatism and, ultimately, to the LTTE itself. In a short period of time, the LTTE developed a unique martial culture and martyr cult, drawing on numerous cultural and religious sources in Tamil society. This martyr cult encompassed references to the Christian tradition of martyrdom, Hindu bhakti (devotional) literature, and classic Tamil heroic poetry. Each martyr’s self-sacrifice formed part of a symbolic universe that was fundamentally nationalistic, but Christian and Hindu references and ritual language were employed to help to legitimize the sacrificial act. The ideology of martyrdom transcended the martyrs’ religious backgrounds, and instead of a place in paradise or release from the cycle of reincarnation, it promised eternal life in the memory of the nation. Within the cultural and political universe of the LTTE, the nation and its territory became sacralized, and the LTTE’s meticulously articulated martial culture began to take on quasi-religious qualities. At the ideological level, the LTTE propaganda machinery managed to balance secularism, deep religious sentiment, and religious diversity, and religion functioned as a multilayered concept used for a variety of purposes by military and political leaders. Religion can also be identified as various “fields” within the movement: “civil religious,” “Śaiva religious,” and “Tamil Catholic religious,” allowing for overlapping yet distinct Hindu, Catholic, or nonreligious identities under the sacred canopy of Tamil nationalism.
Gayatri Spivak is one of the foremost intellectuals of the 20th and 21st centuries. Although a literary critic, her work can be seen as philosophical as it is concerned with how to develop a transnational ethical responsibility to the radical “other,” who cannot be accessed by our discursive (and thus institutionalized) regimes of knowledge. Regarded as a leading postcolonial theorist, Spivak is probably best seen as a postcolonial Marxist feminist theorist, although she herself does not feel comfortable with rigid academic labeling. Her work is significantly influenced by the deconstructionist impulses of Jacques Derrida. Additionally, the influence of Gramsci and Marx is prominent in her thinking.
Spivak’s work has consistently called attention to the logics of imperialism that inform texts in the West, including in Western feminist scholarship. Relatedly, she has also written significantly on how the nation, in attempting to represent the entirety of a population, cannot access otherness or radical alterity. This is best seen in her work on the subaltern and in her intervention into the famous Indian group of Subaltern Studies scholars. Other related foci of her work have been on comprehending translation as a transnational cultural politics, and what it means to develop a transnational ethics of literacy.
The Tribunal of the Holy Office of the Inquisition of Mexico City was in between 1569 and 1820. Its task was to regulate the moral life of the society of New Spain and it was authorized to punish offenders. The crimes that were usually persecuted were acts against the Catholic faith (heresy, blasphemy, sorcery, and idolatry) or against accepted morality (indecency, bigamy, sexual harassment, homosexuality, and sedition).
The Court placed limited attention to the sones de la tierra (sounds of the land) from 1766 to 1819. The sones were sung dances that were eventually considered unsuitable and were denounced for various reasons: the lyrics of the songs contained vulgar words or heretical or blasphemous concepts, the steps of dances were indecent, the choreography implied actions that parodied known acts of the Christian liturgy, or by some combination of these factors.
The archive of the Inquisition of Mexico is practically the only source of information on music and street poetry in the cities and towns of the colony.
The sones de la tierra are the origin of the current cultural music genre called son mexicano, the most significant part of the traditional music and poetry of the country.
The sones de la tierra of the Baroque period and the current Mexican sones have three basic elements: music, poetry, and choreography. The music is based on recurrent rhythmic-harmonic patterns (ostinato) on which instrumental or vocal improvisations are made. Each determined pattern generates a son with a specific name. Thus, it is possible to speak of sones typical of the Baroque period (chacona, zarabanda, chuchumbé, and saraguandingo) or in present-day Mexico (bamba, maracumbé, petenera, and oaxacado). Some can be documented both in the 18th century and in the 21st century (matachines, fandango, panaderos, and zacamandú).
The poetry of the sones is based on the active principle of the copla, a poetic form based on the octosyllabic quatrain in various modalities (seguidilla and décima). The current Mexican variants are directly related to the Spanish poetry of the Golden Age.
The dance of the sones is performed mainly in couples who dance without having physical contact, using different steps whose main characteristic is the zapateado.
The archive of the Inquisition of Mexico mentions some sixty sones. The complaints and interrogations of the Court provide information about the sung lyrics, the ways of dancing, the people who practiced them, their geographical distribution, and some social attitudes regarding their use. This information shows that the sones de la tierra were common throughout the territory of New Spain and were practiced by people of almost all social classes.
The study of the sones de la tierra allows us to understand the existence and behavior of the different variants of the Mexican sones of today, which represent one of the fundamental elements of Mexican culture.