Age estimation from teeth in children and adolescents

The aim of this cross-sectional study was to evaluate the dental formulas according to age because of possible changes during the last decades. From these dental formulas, the median age of emergence for the permanent teeth was deduced. The study population corresponded to the 1 to 15 year-old children who had consulted either a pediatric dentist or orthodontist in the city of Nice (France). Data were collected from the 5,848 patients' charts that included an orthopantomography. This permitted the observation of emerged teeth and agenesis. Bar charts were used to indicate the dental formula according to age. There was no significant difference in the emergence pattern of both controlateral maxillary and mandibular teeth. Only the anterior tooth emergence significantly differed according to the maxillary. The lower central incisor was the lone tooth with a median age earlier than others; the remaining teeth had an age equivalent to those of previously estimates.     

Imaginaries of the Pandemic in Chile: A Conceptual-Empirical Discussion

This article aims to reconstruct the social imaginaries of Coronavirus disease 2019 (COVID-19) in Chile. We seek to understand how families interpret their experience confronting the pandemic by identifying four main aspects: (a) the COVID-19 pandemic, (b) working and learning, (c) health and (d) family life. Following Habermas' distinction between lifeworld and social systems, we consider these issues as constituting the social imaginary of lifeworld, different but related to the imaginaries of social systems. The qualitative empirical data was gathered through a sample of 38 families interviewed online between September 2020 and January 2021 in four Chilean cities: Iquique, Valparaíso, Santiago and Concepción. Other complementary sources of information are multimodal ethnography (digital diaries), press articles and state reports.     

Critical legal and environmental view on the Ramsar Convention in protection from invasive plant species: an example of the Southern Pannonia region

The emergence and continued expansion of one of the most dangerous causes of biodiversity loss and habitat alteration such as invasive species at some Ramsar wetlands of the Southern Pannonia raise a series of questions of both an environmental as well as a legal character relevant to these fragile ecosystems. The Ramsar Convention provides a set of general instructions and guidelines, but it does not establish an adequate mechanism of sanctions that could be imposed on states or individuals who violate its provisions. Fully aware of the importance of wetlands and their wildlife for a healthy living environment and human welfare, the authors of this paper describe the present conditions of invasive plant species at some Ramsar Sites and briefly analyze the current legal framework for the implementation of the Ramsar Convention. Finally, the authors propose innovative normative solutions that would improve the protection of wetlands and contribute to the suppression and prevention of the presence of invasive species not only in this region, but also worldwide.     

Analysis of the Effect of Cyclophosphamide and Methotrexate on Chrysomya megacephala (Diptera: Calliphoridae),

Forensic entomotoxicology investigates the effects of chemical substances in the development of scavenger insects and the reflection on estimating the minimum postmortem interval (PMI). To evaluate the impact of the chemotherapeutic drugs cyclophosphamide (CF) and methotrexate (MTX) on the postembryonic development of Chrysomya megacephala, controlled experiments were performed by rearing the larvae on spiked minced beef with different concentrations of these drugs. The results indicated that CF significantly decreased their developmental rate up to 28 h but had no significant effect on larval and adult sizes, survival rate, and sex ratio, whereas MTX decreased larval and adult sizes, survival rate, and there was a deviation in the expected sex ratio toward females in MTX‐exposed larvae but had no significant impact on developmental rate. These negative interference factors should be considered in cases of suspected death of people that have undergone chemotherapy.     

Crisis,what crisis? A feminist analysis of discourse on masculinities and suicide

High male suicide rates are often constructed as evidence for an apparent ‘crisis of masculinity’. Conversely, ‘crisis of masculinity’ has been used to explain differential rates of male and female suicide in the UK (and elsewhere). We analyse three public cases where male suicide and ‘masculinity-crisis’ discourse are employed together. Our feminist analysis demonstrates that ‘crisis talk’ and male suicide are addressed in divergent ways. We therefore distinguish between ‘progressive’ and ‘conservative’ crisis narratives. Conservative narratives position high male suicide rates as a pernicious outcome of ‘threats’ to traditional gender roles and norms, suggesting the solution is to return to them. Contrastingly, progressive crisis accounts use male suicide to demonstrate that existing gender norms harm men as well as women and argue they should be altered to address male suicide. Conservative narratives often map on to anti-feminist politics, whereas progressive accounts reflect aspects of feminism. There is no neat feminist/anti-feminist distinction, however, as postfeminist ideas are also evident. We argue that, overall, each of the articulations of a ‘crisis of masculinity’ as evidenced by high rates of male suicide reinforces problematic gender politics. Further, in reifying simplistic, dualistic models of gender, they may ultimately constrain efforts to reduce suicide.     

Migrant melodrama and the political economy of suffering

This article deploys the term “migrant melodrama” to describe contemporary cultural production that trains a melodramatic imagination on migrants. It argues that migrant melodrama often reconfigures suffering as a necessary step in the progress toward inclusion and belonging. To interrogate this assumption, the article analyzes three prominent examples of migrant melodramas that feature children traveling north across national borders without adult caretakers: the 2006 journalistic narrative Enrique’s Journey: The Story of a Boy’s Dangerous Odyssey to Reunite with His Mother, by Sonia Nazario; a 2009 HBO documentary film inspired by Nazario’s book, Which Way Home, directed by Rebecca Cammisa; and the 2007 fictional film Under the Same Moon, directed by Patricia Riggen. The article proposes that migrant melodrama plays a role in the commodification and circulation of undocumented migrant suffering in a global market, a phenomenon that the author terms “the political economy of suffering.” Performances of suffering can be exchanged in the political economy of suffering for any number of privileges, from a handout to a visa, and are linked to major international economic and political decisions, such as migration policies that regulate human mobility across nation-state borders. The political economy of suffering is a web of transactions in which performances of undocumented migrant suffering are exchanged in attempts to promote empathy, tolerance of mobility, and respect for migrant human rights. In different ways, all three of the works analyzed accept the underlying logic of the political economy of suffering.     

Private extension-service provision for smallholder horticultural producers in Kenya: an approach

An approach to establishing improved private extension-service provision for smallholder horticultural producers in Kenya was developed between 2003 and 2005 by the International Centre of Insect Physiology and Ecology and Natural Resources Institute in the UK, in collaboration with EurepGAP FoodPLUS GmbH and the House of Quality–South Africa, international NGOs, export companies, and out-grower farmer groups. The approach focused on good agricultural practices, food safety, EU regulations on maximum pesticide-residue limits, and the EurepGAP Standard. The approach is not a blueprint, but the lessons learned are applicable to similar smallholder production systems in other African countries.     

Development and Validation of a Method Using Dried Oral Fluid Spot to Determine Drugs of Abuse

A liquid chromatography–mass spectrometry method using dried oral fluid spots was developed and validated for the simultaneous quantification of cocaine, benzoylecgonine, cocaethylene, amphetamine, and 3,4‐methylenedioxymethamphetamine. The oral fluid was applied to a Whatman 903 grade paper and submitted to a drying time of 2.5 h. The extraction procedure was optimized by chemometric approach using simplex centroid design. Spots were extracted with a mixture of acetonitrile, buffer, and methanol. Calibration curves covered a linear concentration range of 40–500 ng/mL. Validation parameters of linearity, precision, accuracy, selectivity, carryover, matrix effects, and stability were evaluated and showed satisfactory results. Spot homogeneity was also satisfactory, with less than 15% of deviation from nominal concentration. Spot volume did not influence accuracy when less than 100 μL of the sample was applied to the spot. The validation of the proposed method suggests a potential application in different scenarios in toxicology.