Peach-potato aphids, Myzus persicae Sulzer (Hemiptera:Aphididae), and cabbage aphids, Brevicoryne brassicae Linnaeus (Hemiptera:Aphididae), are herbivorous insects of significant agricultural importance. Aphids can harbour a range of non-essential (facultative) endosymbiotic bacteria that confer multiple costs and benefits to the host aphid. A key endosymbiont-derived phenotype is protection against parasitoid wasps, and this protective phenotype has been associated with several defensive enodsymbionts. In recent years greater emphasis has been placed on developing alternative pest management strategies, including the increased use of natural enemies such as parasitoids wasps. For the success of aphid control strategies to be estimated the presence of defensive endosymbionts that can potentially disrupt the success of biocontrol agents needs to be determined in natural aphid populations. Here, we sampled aphids and mummies (parasitised aphids) from an important rapeseed production region in Germany and used multiplex PCR assays to characterise the endosymbiont communities. We found that aphids rarely harboured facultative endosymbionts, with 3.6% of M. persicae and 0% of B. brassicae populations forming facultative endosymbiont associations. This is comparable with endosymbiont prevalence described for M. persicae populations surveyed in Australia, Europe, Chile, and USA where endosymbiont infection frequencies range form 0–2%, but is in contrast with observations from China where M. persicae populations have more abundant and diverse endosymbiotic communities (endosymbionts present in over 50% of aphid populations).

To date, support for independence in older people has been largely focused on achieving practice- and policy-orientated goals such as maintenance of function, remaining in one's own home and reducing the impact of receiving care. Uncertainty about what independence means to older people means that these goals may not align with what matters and should be considered for a more person-centred approach to independence. This study aimed to improve understanding of the meaning and facilitators of independence from older people's perspectives. Semi-structured interviews were conducted with 14 community-dwelling people aged 75+, purposively sampled for maximum variance in demographic characteristics. Interviews, conducted by phone or online, were recorded and transcribed. Analysis was conducted using a framework approach to organise, and facilitate comparison of, inductively and deductively generated codes. Patterns were identified and interpreted into themes. Transcripts and themes were reviewed with the research team. Disagreements in interpretations were resolved through discussion. Two themes were identified. The first theme, ‘Older people draw on personal values and experiences to develop unique interpretations of independence’, was underpinned by three concepts: participation, autonomy and control. The concepts reflected patterns identified within participants’ meanings of independence. The second theme, ‘It's not what you have, but how you think about it that creates independence’, represented participants’ shared prioritisation of psychological attributes over physical or environmental resources for maintaining independence. Participation, autonomy and control are shared concepts within older people's diverse interpretations of independence. This paper addresses uncertainty around what independence means to older people and contributes three key concepts that should be considered when operationalising person-centred support for independence.

How do we read Greek literature? In the original language or in translation? With a theoretical lens or without? Bringing in our modern perspectives or trying to track ancient approaches? Identifying with characters or exercising supposed academic detachment? How we read Greek texts affects what we read in those texts. And who we are affects how we read. A number of recent publications prompt us to interrogate our reading practices by drawing on theories ancient and modern and reflecting on who we are and how entangled we are with other entities (from the objects we use to the poetry we embody to the narratives in which we are immersed).

Methyl donor micronutrients might affect muscle strength via DNA methylation. We aimed to evaluate the combined relationship of dietary methyl donor micronutrients containing betaine, choline, methionine, vitamin B12, vitamin B6 and folate on muscle strength. This cross-sectional study was conducted on 267 subjects including 113 men and 154 women. Dietary intake of micronutrients was assessed utilising a validated 168-item semi-quantitative FFQ, and methyl donor micronutrient score (MDMS) was calculated. The muscle strength of the participants was measured using a digital handgrip dynamometer. The association was determined using linear regression analysis. The mean age of participants was 36·8 ± 13·2 years. After taking into account potential confounding variables, there was no significant association between dietary methyl donor micronutrient score (MDMS) and the mean left-hand muscle strength (β: 0·07, se: 0·05, P = 0·07); however, the changes were significant in the mean right-hand muscle strength (β: 0·09, se: 0·04, P = 0·03). There was also a significant positive relationship between mean muscle strength and methyl donors’ intake after fully adjusting for potential confounders (β: 0·08, se: 0·04, P = 0·04). In conclusion, our findings revealed that higher dietary methyl donor micronutrient consumption is associated with enhanced muscle strength. As a result, advice on a higher intake of methyl donor-rich foods including grains, nuts, dairy products and seafood might be recommended by dietitians as a general guideline to adhere to. Additional prospective studies are needed to confirm the findings.

In the Austrian province of Moravia, Jews, most of whom spoke German, continued to participate in and support the German political community until the end of the Habsburg monarchy. Unlike in nearby Bohemia, German liberals in Moravia did not abandon the Jews as the franchise expanded and antisemitism grew. Indeed, the German Progressive Party continued to attract voters in the cities of the province and did not resort to antisemitism in order to do so. Although there were only a small number of Jews in the province—just over 40,000—they played a large role among the voters in the urban curia. After the Moravian Compromise of 1905, when German parties no longer had to compete with Czech parties, Jews often formed the majority of all voters for German parties in the small market towns of the largely Czech-speaking south and central part of the province. The perception of the need for Jewish support in elections created a situation in which the German liberals did not turn to antisemitic politics and the Jewish/German liberal alliance remained strong.

The article takes a critical look at the idea that the gathering of men Lucretia confronts a few moments before her suicide is to be understood as an ancient Roman domestic court (consilium domesticum). Arguing from the basis that the paternal power (patria potestas) is a constitutive element of this private-law institution, it examines what supports and what conflicts with the interpretation.

According to speech-act theory, we do things with words every time we speak. The most striking thing one can do with words is to exercise authority over others, such as when a judge issues a guilty verdict in a criminal trial. Some speakers hold this kind of authority without good reason; this kind of speech constitutes an unjust imposition of authority, and thus arguably harms in a direct, non-metaphorical sense; it would seem, therefore, that it should not be protected by freedom of speech. The problem in these cases, however, does not lie in the words that harmful speakers utter, but in the things they have the power to do with them. It is this power, it seems, that must be dismantled: in speech-act terms, we must tackle felicity conditions, not locutions. This paper defends this insight. By providing an account of the (alleged) authority of pornographers as both epistemic and informal, I claim that the presumption against censoring porn is not lifted even if the speech-act argument succeeds in showing that pornography can be constitutive of harm. This does not mean that such harms should not be countered, but they should be countered as the specific kinds of harms that they are.