Acanthaster coral predator density in the Pulau Dua area, Aceh Selatan

The crown of thorns starfish is one of the main threats to damage to coral reefs worldwide. Research on Acanthaster coral predator density in the Pulau Dua area, South Aceh district, has been carried out in March 2021, using the Line Intercept Transect (LIT) method. The results showed that the density Acanthaster planci obtained 42 individuals/12.000m2 with natural criteria. Corals fractures can support the life of Acanthaster planci substrate conditions dominated by coral fractures. It can also grow thread algae (Coraline) and encrusting algae, which will then be eaten by Acanthaster planci which are still in the larval stage. This research concludes that the density of Acanthaster planci obtained is still in the natural category with coral reef conditions including good criteria.

Designing Exhibits to Support Relational Learning in a Science Museum

Science museums aim to provide educational experiences for both children and adults. To achieve this goal, museum displays must convey scientifically-relevant relationships, such as the similarities that unite members of a natural category, and the connections between scientific models and observable objects and events. In this paper, we explore how research on comparison could be leveraged to support learning about such relationships. We describe how museum displays could promote educationally-relevant comparisons involving natural specimens and scientific models. We also discuss how these comparisons could be supported through the design of a display—in particular, by using similarity, space, and language to facilitate relational thinking for children and their adult companions. Such supports may be pivotal given the informal nature of learning in museums.

A preliminary vascular flora of the Parque Ecológico Ermida Dom Bosco, Distrito Federal, Brazil

The area known as Parque Ermida Dom Bosco on the shores of the Paranoá Lake, 7.8 km from the centre of Brasília (Rodoviária do Plano Piloto), Distrito Federal, Brazil, is a preservation area of Monumento Natural category (since 2019), and one of the few protected areas of the Distrito Federal without a floristic list. Collecting focused on the vascular flora and was undertaken as monthly, 1-day events from August of 2017 to August of 2018. Our study identified 293 species, of which half (50%) were distributed among just seven botanical families: Fabaceae (42 species), Asteraceae (31 spp.), Malpighiaceae (19 spp.), Myrtaceae (19 spp.), Lamiaceae (14 spp.), Poaceae (12 spp.), and Euphorbiaceae (8 spp.), a result that is congruent with the known Cerrado flora. Anemopaegma goyazense (Bignoniaceae) was recorded from a protected area in the Distrito Federal for the first time; other regional species with narrow geographic distributions recorded were Mimosa gatesiae (Fabaceae), Myrcia capitata and Myrcia federalis (Myrtaceae).

Women, gender and sexuality: Changing historiographies of colonial India—A bibliographical essay

Drawing on fragmentary examples from women’s histories in colonial India, this paper underlines the problems and possibilities in historiographies of modern India. Feminist scholars argue that the three terms—women, gender and sex—have often been used interchangeably. However, the commonsensical term woman is neither a natural category (of non-men) nor a homogeneous community (of sisterhood), for there are historically many ways of being a woman in different times. Further, gender is not merely a natural or biological identity of a person. It is a historical, social and political construction of how to be a man or a woman. Even sex is no longer seen as the biological ground upon which gender is constructed, as sexualities too are socially produced and regulated by dominant discourses, which establish one kind of sexuality as normal and relegate others into the domain of deviance, perversion or criminality. Through selective readings from discourses around women’s education and conceptualisation of the modern women in colonial India, the paper reflects on how a gender-sensitive perspective produces a more complex and textured view of historical processes. While patriarchies were recast in more powerful, though subtle ways, they were also subverted, or at least questioned, in colonial India.

Ritualizing a Nonroyal Building Termination at the Classic Maya Capital of Tamarindito, Guatemala

Classic Maya “killed” objects. They broke and dispersed ceramic vessels. After adding exotic artifacts, they burned everything, buried the deposit with marl, and tore down associated rooms or buildings. This complex set of interrelated activities has been classified as a termination ritual. Instead of accepting this as a natural category, we study how the Classic Maya strategically differentiated some practices from others. Our case study are the deposits in Structure 5PS-12, an eighth-century AD building at the outskirts of the royal capital of Tamarindito, Guatemala. Destroyed wall foundations and evenly distributed wall fall indicate that Structure 5PS-12 was dismantled. Complete tools and exotic artifacts are found within the wall fall and on the floor. Refitted ceramic sherds show that partial vessels were broken apart and scattered across the building. The combination and sequence of these practices reveal a deliberate strategy to distinguish some practices from others. Its practitioners may have witnessed a fire ceremony conducted by the divine rulers of Tamarindito in AD 762. Structure 5PS-12 attests to shared and possibly copied ritual procedures, whereas unique practices establish a local way of abandonment. The process of differentiation allows people to display but also question shared cultural frameworks. The Maya ritualized practices in a social discourse about appropriate norms and behaviors.

Evaluation of the Impact of 2 Disposable Diapers in the “Natural” Diaper Category on Diapered Skin Condition

The demand for natural infant care products, including diapers, has increased. However, few disposable diapers have been able to provide the performance caregivers desire while also incorporating ingredients consistent with the “natural” category. In an examiner-blinded clinical study, the performance of a new cotton-enhanced diaper with high-performance materials was compared with an existing natural diaper offering. A total of 131 infants wore 1 of the 2 diapers for a 4-week period. Diaper performance was assessed based on skin marking assessments, scored by a trained grader, and incidence of diaper dermatitis. Skin grading for diaper dermatitis was assessed at 4 sites in the diaper area. The new diaper offering was associated with less skin marking and significantly less diaper rash at the genitals and intertriginous regions versus the comparator. These data suggest that the new diaper provided significant improvement in both skin marking and prevalence of diaper rash.

The sociocultural self-creation of a natural category

Following the recent recognition that humans are an active force in nature that gave rise to a new geological epoch, this article explores the implications of the shift to the Anthropocene for social theory. The argument assumes that the emerging conditions compel an expansion and deepening of the timescale of the social-theoretical perspective and that such an enhancement has serious repercussions for the concept of human agency. First, the Anthropocene is conceptualized as a nascent cognitively structured cultural model rather than simply a geological epoch. Second, the vast and deep timescale, in the light of which the new time unit and its generative agency alone make sense, is analysed along with the human world’s objective, sociocultural and subjective axes. Finally, the elements of the concept of agency are recomposed in their temporal and relational contexts. At the reflexive level throughout, the need for social theory to develop a cognitive-theoretical approach in conjunction with a weak naturalistic ontology is suggested.

Prototype Effects in Transitivity

Cognitive linguistics strongly opposes the classical view and alternatively claims that categories center round a prototype and the membership of a category depends not on the binary features but on the family resemblance with the prototype. This paper attempts to make a study of a common grammatical category—transitivity, with the aim to find the proof for our hypothesis that transitivity, as a prototype category like any natural category, shows prototype effects with asymmetries among members.