In Paraguayan Guaraní (PG), nasalisation processes affect material to both the left and right of a stressed nasal vowel. While some prior literature has claimed that bidirectional harmony is active in the language, others have noted that progressive nasalisation appears to be morpheme-specific and likely dependent on a different mechanism from regressive nasal harmony. Recent work shows that Spanish-origin lexical items participate in regressive nasal harmony, but the interactions of etymological origin and progressive nasalisation remain unclear. Drawing on a corpus of 26 sociolinguistic interviews as well as elicitation with native speakers of PG, I argue that the mechanisms underlying the two types of nasalisation in the language are in fact different. I propose that PG regressive nasalisation is best analysed as productive nasal harmony, while progressive nasalisation represents a case of morpheme-specific allomorphy. Additionally, though the PG pattern of regressive nasal harmony has been extended to items of Spanish origin, this is not the case for progressive nasalisation. This corpus study provides insight into the specific factors that condition variation in nasalisation processes, contributing to a growing literature investigating variable application of harmony.

This article explores the variation surrounding the semi-modals be going to and gonna. While gonna is frequently mentioned alongside be going to, it remains under-described in traditional grammars and academic literature. However, recent studies within Construction Grammar suggest that gonna may represent an independent construction, prompting a reconsideration of other variants within the be going to / gonna paradigm such as gon and imma, which appear to derive directly from gonna and no longer from be going to. In light of recent work, what have traditionally been regarded as mere ‘phonetic realizations’ or ‘orthographic variants’ may in fact play a more significant role in the formation and definition of constructions, raising questions about the structure of constructional networks. This article analyzes the immediate syntactic environment of the variants to account for both the variation of forms and the status of such forms. The study is conducted using two corpora that are particularly prone to showing linguistic innovations and language change: a spontaneous spoken corpus and a web corpus. Findings indicate that shorter variants often involve elision of be and that gonna is more grammaticalized than going to, based on the types of verbs they precede.

This paper explores the complementation of the verb prevent in contemporary English. While the verb is typically followed by from -ing, British English also exhibits a variant without from (e.g. They must carry out a forensic examination of these failings to prevent them happening again [The Daily Mail, 22 December 2020]). In British English, this construction has in fact been reported to be on the increase in recent years. Since previous studies on this topic have tended to rely on a limited number of examples, the present research investigates a larger dataset drawn from the 2010 issues of The Daily Mail (British) and USA Today (American). This study also examines the British Academic Written English (BAWE) corpus as a supplementary resource. The BAWE corpus is a collection of academic assignments and provides insight into unedited uses of the verb prevent. The findings are as follows: the use of from-less -ing is indeed expanding in contemporary British English; the rate of this expansion differs between newspaper texts and unedited academic writing; and the complementation patterns of prevent are more varied in contemporary English than previously assumed. The discussion concludes by situating these present-day uses within the historical development of this verb.

Afrikaans is spoken by a wide range of ethnic groups in Namibia, both as an L1 and an L2. Stell (2021) showed that, in its phonetic variation, Namibian Afrikaans forms a continuum between Whites and Blacks with Coloureds1 located in between. This article aims to find out whether a continuum can likewise be observed in the grammatical patterns of Namibian Afrikaans varieties. The dataset is based on a translation task, administered to L1 Afrikaans-speaking Whites and Coloureds and to L2 Afrikaans-speaking Damaras and Ovambos, whose respective L1s are Khoekhoegowab and Oshiwambo. The article finds a contrast between L1 and L2 speakers as the Damara and Ovambo Afrikaans varieties show evidence of L1 transfers. However, it also finds evidence of a continuum linking the Whites, Coloureds, and Damaras in the form of commonly shared Orange River Afrikaans features. The fact that Ovambo Afrikaans does not quite fit into this continuum, the article argues, has to do with the historically late exposure of Oshiwambo speakers to L1 Afrikaans varieties. Finally, the article attempts to match evidence of Khoekhoegowab influence on Damara Afrikaans with Den Besten’s (2001) and Roberge’s (1994a) reflections on historical contact between Khoekhoe and Cape Dutch.

This study examines fodder quality traits of Hippophae salicifolia D. Don (Seabuckthorn) populations across the Western Himalayas of India, emphasizing their significance in domestication and sustainable utilization of indigenous fodder tree. In Himachal Pradesh and Uttarakhand regions, foliage of H. salicifolia serves as essential winter forage for livestock and is incorporated into local tea formulations. Fifty female genotypes were selected for evaluation from ten distinct geographical locations. Analysis of variance highlighted significant variability among the populations, with Badya population demonstrating the highest leaf fresh weight. In contrast, the Kardang population exhibited optimal values of leaf dry weight and total ash content. Sansha population was characterized by the highest leaf dry matter, crude protein and nitrogen levels, whereas the Jankichatti population showed the highest crude fibre content, and Sissu had the highest nitrogen-free extract value. Significant positive correlations were identified between leaf fresh weight and leaf dry weight (0.613), and between dry matter content and crude protein (0.458), indicating the potential to enhance these traits in breeding programs aimed at improving fodder quality. Accessions were grouped into two primary clusters, and leaf dry matter was the dominant factor influencing fodder quality variability, explaining 85.272% of the total variance. These findings will inform targeted breeding strategies and agricultural practices intended to augment the nutritional profile of this vital fodder resource. Moreover, the study underscores the potential of H. salicifolia as both a livestock forage and a viable component of agroforestry systems, contributing to sustainable agricultural practices in the Western Himalayas.

This study presents the first record of Miyalachnus sorini Kanturski & Lee, 2024 (Aphididae: Lachninae) in South Korea, thereby extending its known distribution beyond Japan and identifying a new host plant, Prunus sargentii (Rosaceae). We describe diagnostic morphological traits across multiple life stages and compare them with those of Japanese populations. Comparative analyses with Japanese populations demonstrated consistent morphological differentiation, notably elevated ratios of the ultimate rostral segment to antennal segments across multiple morphs in the Korean population, indicating potential ecological adaptation. DNA barcoding using the mitochondrial cytochrome c oxidase I gene revealed low intraspecific divergence (average 0.2%) and interspecific divergence (average 10.5%) between Miyalachnus sp. and M. sorini. Haplotype analysis was performed to investigate the relationship between host plants and cryptic genetic diversity. These findings enhance our understanding of the morphological and genetic diversity of M. sorini and underscore the importance of monitoring its spread for informed pest management strategies.

Language variation (specifically: optionality between different ways of saying the same thing, as in check out the places vs check the places out) tends to be considered abnormal, suboptimal, short-lived, dysfunctional and needlessly complex, especially in functional or cognitive linguistic circles. In this contribution, we are assessing these assumptions: does grammatical optionality increase the relative complexity (or: difficulty) of language production? We use a corpus-based psycholinguistics research design with a variationist twist and analyse SWITCHBOARD, a corpus of conversational spoken American English. We ask if and how grammatical optionality correlates with two symptoms of production difficulty, namely filled pauses (um and uh) and unfilled pauses (speech planning time). Our dataset covers 108,487 conversational turns in SWITCHBOARD, 22 grammatical alternation types yielding 57,032 optionality contexts, 589,124 unfilled pauses and 43,801 filled pauses. Analysis shows that overall optionality contexts do not make speech production more dysfluent – regardless of how many language-internal probabilistic constraints are in operation, or how many variants there are to choose from. With that being said, we show how some alternations in the grammar of English are more prone to attract or repel production difficulties than others. All told, our results call into question old dogmas in theoretical linguistics, such as the Principle of Isomorphism or the Principle of No Synonymy.

The late-acquired French subjunctive–indicative contrast conveys important information about event realization and is characterized by bound morphology, form ambiguity, contextual restrictedness, and the infrequency of the subjunctive. This study contributes underrepresented adverbial-clause interpretation data and incorporates lexical effects to extend what is known about why French mood is late-acquired. We assess interpretation of four adverbial conjunctions which primarily co-occur with subjunctive or indicative mood in corpus searches. Analysis of 77 participants revealed a statistically significant interaction between mood and proficiency, with more proficient learners affected by mood, whereas clause order influenced less proficient learners. Moreover, lower-proficiency learners treated adverbs within a particular class of co-occurrence more similarly across the 32 items than our advanced learners or native speakers, who were sensitive to lexical effects, attributable to the roles of frequency and semantics. The study contributes to the growing body of research on late-acquired structures, for which learners attend to evolving cues across acquisitional trajectories.

Traditionally, verbs like base have combined with the preposition on to express a meaning of derivation (based on). However, many writing in a US context have noticed the rapid rise of based off (of) alongside based on (Curzan 2013; Behrens 2014; Janda 2021). In this article, we document the relative increase of off in two English-language corpora in the verb base and six other verbs. The results show a clear real-time trend of increasing use of off, with some differences in the course of the change across different verbs. We also see an increase in use of off in apparent time, which we infer from the topical organization of comments in one of our corpora, the social media site Reddit.

The Floquet exponents of periodic field lines are studied through the variations of the magnetic action on the magnetic axis, which is assumed to be elliptical. The near-axis formalism developed by Mercier, Solov'ev and Shafranov is combined with a Lagrangian approach. The on-axis Floquet exponent is shown to coincide with the on-axis rotational transform. A discrete solution suitable for numerical implementation is introduced, which gives the Floquet exponents as solutions to an eigenvalue problem. This discrete formalism expresses the exponents as the eigenvalues of a $6\times 6$ matrix.