Accurate identification of potentially toxic element (PTE) sources is crucial for effective risk mitigation; however, the complex solubility of trace elements hinders such identification. Here, levels of PTEs in the dust of 105 leaf samples from 21 sites in urban Guiyang (China) were measured and positive matrix factorization was applied to help identify PTE sources. These results were validated through correlating PTE concentrations with the land-use areas surrounding the sample sites. Ni and As in the leaf dust were linked to the cleanest conditions, followed by Cr. Conversely, Zn, Cu, Cd and Pb were associated with higher pollution levels. Three primary sources of PTEs were identified, with traffic-agriculture emissions being the largest contributor at 40.42%. Natural sources followed closely at 39.41%, while industrial processes accounted for the remaining 20.17%. High-pollution areas were clustered around traffic hubs, where frequent vehicle idling and acceleration increased emissions. As traffic emission was a major source of atmospheric pollution, targeted flow optimization is needed to reduce risks of human exposure.

This paper conducts a comprehensive exploration of methodology in historical linguistics, focusing on language subgrouping. Employing Tangut, a severely eroded medieval language, as a case study, it scrutinizes previous linguistic analyses that depart from the rigorous Neogrammarian method, specifically referencing Beaudouin (2023). These non-compliant analyses have impeded recent progress in understanding the genetic relationships within Burmo-Qiangic, a field marked by prolonged debates and with gradual advancement recently. In a subsequent step, adhering to Neogrammarian principles, namely, Ausnahmslosigkeit der Lautgesetze and positive shared innovations in language subgrouping, the paper discusses the plausibility of, as well as the good practice to argue for, a “Tangut-Horpa clade” within the Gyalrongic branch of Burmo-Qiangic. By advocating for the universality of these Neogrammarian principles, the paper aims to improve the accuracy and reliability of subgrouping languages characterized by significant typological diversity. This, in turn, contributes to a deeper comprehension of rigorous methodology within the context of the Sino-Tibetan language family.

Amerotyphlops brongersmianus (Vanzolini, 1976) is the only representative of its family in Argentina, and to date, there have been no records of its parasites. Between 2013 and 2018, 46 specimens of A. brongersmianus were collected in Corrientes province and investigated for helminths. Eighty-three specimens of Serpentirhabdias aff. vellardi were collected from the lungs of nineteen hosts. Sixty-nine percent of the nematodes were collected from the vascular lung mostly, with a prevalence of 41.3% and a mean intensity of 3.74 worms. Adult snakes had higher prevalence and mean abundance than juveniles; the mean intensity was similar between sexes and sexual maturity groups. The association between sexual maturity and the presence of lungworms was statistically significant. Lungworm abundance, weight, and length of adult snakes showed weak to strong positive correlations, with stronger correlations in males; however, these were not statistically significant. Nematodes followed a negative binomial distribution. Seasonal differences in parasitological descriptors and mean body length of lungworms were not statistically significant. Nonetheless, a significant negative correlation was observed between lungworm abundance and body length in spring, suggesting a clustering effect. Our results are discussed based on host phenology, ecology, biology, and anatomy. The life cycles of lungworms, the abundance of potential transport hosts, as well as abiotic factors (rainfall and temperature), are also considered. This is the first report of lungworms in A. brongersmianus throughout its range, the second global report of helminths in a Typhlopidae species in the 21st century, and the first in South America and Argentina, providing ecological data.

This article has a two objectives. The first objective is to investigate the history of identity politics in Bangladesh from the British and Pakistani periods to the post-independence era. It argues that the syncretic culture that flourished during the Muslim rule was deliberately disrupted by the British divide-and-rule policy of partitioning Bengal in 1905 along religious lines, fomenting such communal hatred between Hindus and Muslims that resulted in the partition of 1947, with East Bengal joining Pakistan. This also sowed the seeds of identity politics and a “pendulum syndrome” in future Bangladeshi politics, marked by a perpetual strife between advocates of ethnolinguistic nationalism on one side and religious nationalism on the other, which has become a perennial source of violence and volatility for the nation, hindering its growth and progress. The second objective is to explore how Nobel laureate Rabindranath Tagore has been drawn into this strife, facing accusations of being an Islamophobe and a Hindu chauvinist, and why there have been recurrent attempts to replace his song as the country’s national anthem. The article concludes with a rebuttal to such accusations based on evidence highlighting the song’s historical contributions to the nation despite the ongoing campaigns against it.

The European Union (EU) is implementing unilateral trade restrictions on imports that contain residues of pesticides banned for use within its borders. Several Latin American (LA) countries, among other EU trading partners, have criticized these measures, leading to a contentious debate that could escalate into a trade dispute before the World Trade Organization (WTO). This article aims to unpack this seemingly polarized debate by re-evaluating the trade concerns raised by LA WTO delegates through a human rights lens. It highlights the disconnect between trade policy positions and human rights commitments concerning pesticides, revealing a bias among WTO delegates in favour of commercial interests, often at the expense of broader societal and ecological concerns raised by human rights-holders in both LA and the EU. The article suggests procedural innovations at both the national and WTO levels that could broaden the trade policy discussion on pesticides, aligning it with human rights standards and urgent collective action for biodiversity stewardship.

To determine values for the digestible indispensable amino acid score (DIAAS), it is recommended that ileal amino acid (AA) digestibility values obtained in growing pigs are used to characterise protein quality in different foods. Therefore, an experiment was conducted to determine the standardised ileal digestibility (SID) of AA in eight energy ingredients (barley, sorghum, wheat, brown rice, rice bran, wheat bran, cassava and paddy rice) fed to pigs, where SID values in pigs can be used to calculate approximate DIAAS values in humans. Among the data obtained for all energy ingredients, significant variations (P < 0·01) in CP and AA composition were observed. Rice bran and wheat bran had the highest CP (16·43 % and 18·16 %, respectively) and DIAAS scores of 81–88 for adult, qualifying as ‘good’ protein sources (> 75). Cassava, with the lowest CP (2·74 %), was limited by sulphur amino acid (54). Lysine (Lys) was the first-limiting AA in barley (74), sorghum (51) and wheat (49), with SID values lowest in wheat (71·04 %). Brown rice and paddy rice showed higher SIDLys (87·51 % and 78·13 %, respectively). These findings highlight the potential of bran-based ingredients and Lys fortification to improve protein quality in grain-dependent diets, providing the scientific basis to combat protein malnutrition.

This article discusses the concepts of public order and good morals in the Chinese Civil Code. Under Article 153 of the Civil Code, a civil juristic act is rendered void if it violates these concepts. This article examines their substance, functions, and practical significance in determining the invalidity of civil juristic acts in Chinese civil law. Public order refers to interests relating to national security and matters fundamental to the social public order, and good morals refers to virtuous customs representing social morality, family ethics, and personal dignity. It is argued that the nuances of the concepts are purposeful, but they must be wielded by the judiciary with objectivity and precision. It shows, comparatively, that in Chinese jurisprudence, the concepts of public order and good morals are intended to be applied flexibly and are widely accepted as capable of addressing areas where the law remains underdeveloped. Chinese courts are therefore tasked with achieving justice for litigants in each case and social justice at the same time without compromising private autonomy. In the final analysis, these concepts can be viewed as part of a broader commitment to ensuring the law operates in line with social changes and continues to garner public support for the judicial system.

This paper offers a unified analysis of the postmodal meanings of should and would. It proposes a semantic-pragmatic account based on how these modals function in contexts that yield mirative interpretations. The analysis begins with their use in content clauses under factive predicates and then examines a parallel use in why-interrogatives. It also explains why only would can produce a mirative reading in the assertive equative construction ‘That Would Be X’. The paper argues that these mirative extensions arise from the speaker’s knowledge state and their assumptions about the addressee’s expectations. The postmodal domain is therefore shaped by pragmatic strengthening within patterns that still preserve aspects of the modals’ core semantics. The shift from modality to postmodality marks a move toward the illocutionary level. However, this domain is not uniform: postmodal meanings may represent either the endpoint of grammaticalisation or the emergence of new discourse functions through constructionalisation, as in the TWBX construction.