This article focuses on the innovative developments of some emblematic rock bands in Bulgaria, observed during the late 1970s and 1980s in terms of their social, ideological and artistic maturity, as well as of their significant impact on local youth life-styles through the liberating experience of specific musical styles ranging from classic rock (Shturtsite) and progressive rock (FSB) to, say, new wave (Tangra) or punk (Rock Trio Milena). Why the 1980s? What were the dominant verbal and musical messages at that time? Did they stimulate and accommodate the democratic political changes in 1989? In trying to answer such questions, the article develops a thesis according to which the acculturation of transnational musical models as the ones in the field of rock music is not a form of any flat mimicry of modern trends; this process inevitably passes through the filter of specific local contexts and subjective experiences.

In order to better characterise carbonaceous components in atmospheric aerosols and to assess the contributions of fossil carbon (FC) and non-fossil carbon (NFC) sources and their seasonality in the Eastern Mediterranean, we collected fine (PM1.3) aerosols at a remote marine background site, the Finokalia Research Station, Crete, Greece, over a period of one-year. PM1.3 samples were analysed for elemental carbon (EC), organic carbon (OC), water-soluble OC (WSOC), and stable carbon isotope ratio (δ13CTC) and radiocarbon content (14CTC) (pMC) of total carbon (TC). All the parameters, i.e., PM1.3, δ13CTC and 14CTC showed a clear temporal pattern with higher values in summer and lower values in autumn. The 14CTC ranged from 54.7 to 99.1 pMC with an average of 74.5 pMC during the entire year. The FC content in TC (FCTC) was found to be slightly lower in winter and almost stable in other seasons, whereas the NFC contents (NFCTC) showed a clear seasonality with the highest level in summer followed by spring and the lowest level in winter. Based on these results together with the seasonal distributions of organic tracers, we found that biomass burning (BB) and soil dust are two major sources of the fine aerosols in winter. Although biogenic emissions of VOCs followed by subsequent secondary oxidation processes are significant in summer followed by spring and autumn, pollen is a significant contributor to TC in spring. This study showed that emissions from fossil fuel combustion are significant (25.5%) but minor compared to NFC sources in the eastern Mediterranean.

We appreciate the respondents’ comments on our debate article ‘Cultural evolution as inheritance, not intentions’ (Bentley & O'Brien 2024). We all agree that traditional cultural practices—such as manufacturing Acheulean handaxes—often take considerable amounts of time to learn; as Gladwell (2008) popularly proposed, it takes 10 000 hours of practice to make an expert. We also appear to agree that cultural practices are intergenerational. As Frieman (2024: 1421) notes, ideas and practices persist because they are “valued, recreated, manipulated, instrumentalised and enacted generation after generation”; and as Ingold (2024: 1417) puts it, traditional tasks “are not subject to the free will of the individual but fall upon practitioners as part of their responsibilities” to their communities. Drawing on the practice of Bronze Age metallurgy, Pollard (2024) asks the million-dollar questions: how does innovation occur, and what causes it? As both Prentiss (2024) and Pollard note, for example, the pace of technological change is often punctuated, an observation common across the natural and social sciences, but one that defies easy explanation (e.g. Duran-Nebreda et al. 2024; O'Brien et al. 2024).

Eusebius’ much-discussed catalogue of ‘acknowledged’, ‘disputed’ and ‘spurious’ works (Historia Ecclesiastica 3.25) is a key passage in the history of New Testament canon formation, but it is often extracted from its literary context and consequently misunderstood. This passage is in fact a summary of conclusions that Eusebius has already reached in the contributions to apostolic biography with which he supplements the Book of Acts in HE 2.1–3.24. Biographical passages relating the conclusion of the apostolic lives of James, Peter, Paul and John are accompanied by statements about the texts they authored or authorised, or that have been falsely attributed to them. This biographical context for differentiating genuine works of prestigious figures from their pseudepigraphal counterparts has its roots in Greco-Roman literary culture, as exemplified in the Lives of the Philosophers of Diogenes Laertius. Eusebius’ crucial contribution to the formation of the New Testament canon is thus rooted not in exclusively Christian concerns but in the wider literary culture of Late Antiquity.

The WTO Government Procurement Agreement (GPA) does not legally define what entities should be covered by the Agreement. However, its member Parties list their ‘covered entities’ in a series of schedules. The list approach has complicated accession negotiations and discourages Parties from providing a ‘wider’ range of entity coverage. Moreover, the list approach raises some tensions and a lack of legal certainty, especially concerning those that are not strictly ‘government entities’, such as State-owned enterprises (SOEs). This problem is exacerbated in the case of modern SOEs in developing countries, many of which can bear both public and private features. Given these conditions, the author proposes a definition of ‘covered entities’ to facilitate accession negotiations and the future expansion of the GPA. The proposal is based on a comparative study of the GPA and the EU public procurement regulations. It develops a framework by which all publicly controlled entities are presumably covered by the GPA. Nevertheless, Parties can rebut GPA obligations by proving that an entity competes with other commercial entities under normal market conditions.

Certainty is a cornerstone of every criminal justice system. In instances where controversy arises as to the application of any law, it is essential for it to be addressed promptly. Contrary to this need for certainty, there is judicial ambiguity regarding the mens rea for the offence of attempted murder in Botswana. There are cases which hold that the mens rea required is a specific intention to kill, and that nothing else suffices. However, some cases hold that an intention to cause grievous harm and recklessness are also sufficient. Unfortunately, the Court of Appeal, the apex court in Botswana, has made decisions that support each of these divergent positions. This article addresses the controversy of the mens rea for attempted murder in Botswana and argues that the Court of Appeal should resolve the issue by specifically overruling some of its previous decisions.