The objective of this paper was to investigate how the predicted level of body energy mobilized and the stage of lactation affects performance and energy partitioning in lactating sows kept under commercial conditions. Seventy-seven lactating sows from three consecutive batches were weaned at 28 d and all measures were taken over the first 20 d. Total feed consumption was measured and sows’ live weight was registered when entering the lactation facilities and at 21 d of lactation. Blood samples were collected at farrowing and once a week thereafter. Net energy (NE) mobilization or loss was calculated by difference using the general NRC equation for ME partitioning. Compared to low mobilizers (low NE loss values), high mobilizing sows had lower feed intake and higher loss of live weight, body fat and body protein. High mobilizers also weaned more piglets and had heavier litters than low mobilizers. Energy mobilization (NE loss) was higher from day 1 to 10 of lactation compared to day 11 to 20, and the difference in mobilized energy between high and low mobilizing sows was also higher in the first than in the second half of lactation. Body weight and back fat thickness losses were significantly correlated with NE loss. A more accurate prediction of the changes in live weight or back fat thickness over lactation should help better predict total amount of energy mobilized, and more research is needed to assess the relative contribution of lean and fat to mobilized tissue.

In the spring of 2018, Sheena Greitens and I conducted the China Scholar Research Experience Survey, a survey of 562 China scholars in the social sciences.1 The goal of the survey was to understand the incidence rate of different repressive experiences in the conduct of research. We found that at the time, such incidents were a “rare but real” phenomenon. Approximately 9% of respondents stated that they had been “invited to tea” by authorities within the past 10 years; 26% of scholars who conduct archival research reported having had issues with access; and 5% of researchers cited some difficulty obtaining a visa (Greitens and Truex 2020).

Let $\mathbb F$ be a finite field of odd order and $a,b\in\mathbb F\setminus\{0,1\}$ be such that $\chi(a) = \chi(b)$ and $\chi(1-a)=\chi(1-b)$, where χ is the extended quadratic character on $\mathbb F$. Let $Q_{a,b}$ be the quasigroup over $\mathbb F$ defined by $(x,y)\mapsto x+a(y-x)$ if $\chi(y-x) \geqslant 0$, and $(x,y)\mapsto x+b(y-x)$ if $\chi(y-x) = -1$. We show that $Q_{a,b} \cong Q_{c,d}$ if and only if $\{a,b\}= \{\alpha(c),\alpha(d)\}$ for some $\alpha\in \operatorname{Aut}(\mathbb F)$. We also characterize $\operatorname{Aut}(Q_{a,b})$ and exhibit further properties, including establishing when $Q_{a,b}$ is a Steiner quasigroup or is commutative, entropic, left or right distributive, flexible or semisymmetric. In proving our results, we also characterize the minimal subquasigroups of $Q_{a,b}$.

John Owen (1616–83) was one of the foremost English Puritans of the seventeenth century. His story has been largely limited to events in Britain. The letters examined in this article, translated from the French, reveal Owen's reputation and activity among Huguenots at the end of Oliver Cromwell's Protectorate. Responding to critics of English religion like Moïse Amyraut, they highlight the largely neglected internationality of Interregnum religion and politics in which Owen participated through epistolary and print culture. They display the apocalyptic themes behind attempts at international Protestant union where ecclesiological debates over the nature of synods, toleration, political sovereignty and Church-State relations were decisive.

Investor–state dispute settlement (ISDS) has been heavily criticized from the perspective of human rights. However, the potential adverse human rights impacts of ISDS and the responsibilities of businesses to avoid causing or contributing to those impacts under the UN Guiding Principles on Business and Human Rights have yet to be spelled out. Although states are currently reforming ISDS, progress has been slow, and businesses have an independent responsibility to ensure that their operations do not harm human rights. Against this background, this article unpacks how businesses might contribute to three non-exhaustive examples of potential human rights impacts of ISDS: namely, the chilling effect on human rights regulation, crippling mega-awards and direct impacts on third-party rights. This article breaks new ground by exploring how human rights due diligence could be a useful tool for businesses to identify and address these impacts.

Shovelhead worms are common polychaetes around the British Isles and have been recorded in numerous ecological surveys. Yet, understanding of their habitat conditions is poor, based heavily on visual observations of sediments from historical records. In this study, the drivers of abundance and geographical distribution of two morphologically and behaviourally diverse species Magelona alleni and Magelona minuta are investigated by reanalysing sediment characteristics and depths from museum marine monitoring surveys. Although both species are historically associated with muddy sediments, the records herein suggest that M. alleni occurs in an extensive range of sediments, but is more abundant at localities with more than 25% sand. In comparison, M. minuta shows a negative linear relationship between grain diameter and abundance, corroborating previous work that the species is abundant in fine-grained mud. The depth records show that while M. alleni predominates below 60 m, M. minuta is a distinct offshore species. These differences may be attributed to the interspecific variation in morphology and motility between the species: M. alleni is stout and tube-dwelling, while M. minuta is fragile, small, and fairly motile. To corroborate these findings, sediment grains from tubes of M. alleni were classified using the Udden–Wentworth grain size scale and suggest sand is the key component for tube construction. Overall, this study highlights that sediment parameters for M. alleni have been misinterpreted and generalised in historical records, emphasising the importance of quantitative sediment analysis in defining the habitat of Magelona.

The present article analyzes the meaning and form of onomatopoeias in Tjwao, a Khoe-Kwadi (Kalahari Khoe) language. Making use of a prototype approach to categorization, a corpus of 113 onomatopoeic lexemes were tested for their compliance with the semantic, phonetic, and morphological features associated with the prototype of onomatopoeias in scholarly literature. The evidence demonstrates that Tjwao onomatopoeias tend to instantiate the prototype fully. This signifies, in turn, that, as far as their phonetics and morphology are concerned, Tjwao onomatopoeias tend to be extra-systematic.

Fruit fly infestation is one of the main obstacles to the exportation of fresh agricultural produce. Films of mineral particles and biomaterials have the potential to protect fruits against tephritid fruit fly infestation. The present study evaluated the effects of particle films on the tritrophic interactions of grape (Vitis vinifera L.), the fruit fly Ceratitis capitata (Wiedemann) and the parasitoid Diachasmimorpha longicaudata (Ashmead) under semi-field conditions. Grapes were biometrically characterised (i.e. colour, firmness, mass, length and diameter), treated with mineral particles, biomaterials or distilled water (control), and then used in oviposition and parasitism bioassays. In the oviposition bioassay, the treated grapes were exposed to 50 C. capitata pairs in field cages, and after 48 h, the punctures and eggs on each fruit were counted. In the parasitism bioassay, treated grapes were artificially infested with third-instar C. capitata larvae (two per fruit), exposed (2 h) to 50 D. longicaudata pairs in field cages to determine parasitism index, larval and pupal viabilities and number of flies and parasitoids emerged. Treatment with the mineral film affected fruit colour and reduced C. capitata oviposition but failed to significantly affect the parasitism capacity of D. longicaudata. The ability of the parasitoid to locate and parasitise C. capitata larvae in kaolin-coated fruits suggests that kaolin films could be used in conjunction with biological agents to control fruit flies.

Discussions of mithraea tend to emphasize their uniformity. While it is true that many earlier mithraea do adhere to an established plan, there are a notable number of mithraea dating from the late 3rd c. onward that do not. This article discusses these various atypical mithraea, how such alterations to the standard mithraeum plan might have impacted on Mithraic rituals, and how this might have affected the experiences of the participants. It also explores why such changes occurred, observing that while in some instances this may have been to accommodate alterations to ritual practices, in others it was likely due to more mundane issues, such as limitations on space and environmental factors. The article concludes by reflecting on the implications this has for the identification of mithraea in the archaeological record.

This article explores the role of the radio as an artistic instrument. It discusses both contemporary and historical art experiments, namely those where the sound of the radio or the form of radio reception is an important aspect of the final work. We examine the question, ‘What does it mean for a radio to be an instrument?’ And to clarify, we mean any kind of instrument, not just a musical one. To answer this question, this article focuses on the concepts and theory of those Polish artists who have used radio in their artwork, either as the source of a particular type of sound or as a medium that collects and transmits the sound of its surroundings.

Increasing tensions between the United States and China, a rise in anti-Asian sentiment, and the risk of government surveillance has dramatically altered the teaching and research contexts for scholars of Chinese politics. In this conversation, Dan Chen (University of Richmond), Rongbin Han (University of Georgia), and John Yasuda (Johns Hopkins University) discuss how questions of identity, politics, and security have affected classroom dynamics and their future research endeavors.

When water and nutrients are not limiting, and pests and disease are effectively controlled, crop growth and yield is determined by weather conditions such as temperature and solar radiation. To determine the relationship between weather indices and crop yield, multiple wheat varieties were sown at two sowing times, for five sowing seasons and at two locations. The following weather indices around the 50% anthesis stage were recorded and analysed: mean temperature (Tmean), maximum temperature (Tmax), number of days with temperature >30°C (T30), vapour pressure deficit (VPD), photosynthetically active radiation, photothermal quotient (PQ) and photothermal quotient corrected for vapour pressure deficit (PQvpd). Overall, for every 1°C rise in temperature, crop yield decreased by 370 kg/ha. For every 1°C rise in temperature, normal sowing window yield decreased by 360 kg/ha while late-sown wheat yield decreased by 640 kg/ha. Correlation analysis was conducted between the weather indices and grain number, grain yield and grain protein. There was a significant positive correlation between PQ and PQvpd and grain number and grain yield. There was a significant negative correlation between Tmean, Tmax, T30 and VPD and grain number and grain yield. Grain protein content showed a positive correlation with maximum air temperature and a negative correlation with the weather indices PQ and PQvpd. PQ and PQvpd can be used to predict grain number and grain yield potential. This study showed that grain number and grain yield predicted using PQ and PQvpd are more reliable than using temperature and radiation individually.

This article compares the usage of commencer à ‘to begin’+Vinf. and se mettre à ‘to start’ + Vinf. in modern French. Using a corpus sample of 2000 observations, we examined the effect of Adverbial complementation, of Event type (aspect), and of Tense. Based on a mixed-effects logistic regression analysis, we found evidence for Event type, where se mettre à is associated with activities, and Tense, where se mettre à seems to be associated with passé simple, futur proche and subjonctif present. On the other hand, commencer à is associated with plus-que-parfait and indicatif imparfait. We discuss the results in the frame-semantic model of Croft (2012). We make the case that commencer à can have the profile of an achievement or that of an accomplishment, while se mettre à manifests only one profile, that of an achievement. Our results support a one-component approach to aspect in which the result of the interaction between grammatical aspect and lexical aspect can be attributed to the same aspectual contour.