Mango is a delicious tropical fruit with high economic value worldwide. The Forest-Savanna Transition zone of Ghana contributes significantly to the production of mangoes for both local and international markets. The zone is plagued with the fruit fly ‘menace’ like all mango-producing areas in Ghana. Not much has been done in terms of species monitoring. A 24- month fruit fly monitoring survey was conducted in eight mango orchards, to assess the composition of fruit flies associated with Mango and their damage levels. Four para-pheromone attractants (Methyl Eugenol, Terpinyl Acetate, Trimedlure, and Cuelure) were used to monitor fruit flies. Eight improvised water bottle traps (two per lure) were purposefully deployed in each orchard. A total of 18 tephritid species belonging to five genera were recorded. Bactrocera (one species), Ceratitis (six species), Dacus (eight species), Zeugodacus (one species) and Xanthaciura (two species). Bactrocera dorsalis was the most abundant species (90% of the collected samples), while the native mango fly, C. cosyra constituted 0.5%. Dacus fuscovittatus and Dacus pleuralis were for the first time captured and identified in Ghana. Dacus langi, Dacus carnesi, Dacus (diastatus?), Ceratitis silvestrii and C. quinaria were recorded for the first time in the zone. The zone recorded a diversity index of 0.41. Damage levels ranged from 41–91%. Ten out of the 18 species, are of economic importance on mango and must be watched. Periodic updates on seasonal fluctuations, species composition and new arrivals are key to the successful implementation of any management strategy.

The aim of this paper is to give a full exposition of Leibniz’s mereological system. My starting point will be his papers on Real Addition, and the distinction between the containment and the part-whole relation. In the first part (§2), I expound the Real Addition calculus; in the second part (§3), I introduce the mereological calculus by restricting the containment relation via the notion of homogeneity which results in the parthood relation (this corresponds to an extension of the Real Addition calculus via what I call the Homogeneity axiom). I analyze in detail such a notion, and argue that it implies a gunk conception of (proper) part. Finally, in the third part (§4), I scrutinize some of the applications of the containment-parthood distinction showing that a number of famous Leibnizian doctrines depend on it.

This article uses the postwar trial of Fascist Italy’s most prominent general, Rodolfo Graziani, to examine issues of transitional justice and the formation of popular memory of Italian Fascism and colonialism after 1945. During the Fascist ventennio, the regime constructed Graziani as the nation’s colonial ‘hero’ despite his leading role in genocidal measures during Fascist Italy’s colonial wars in North and East Africa. His position as minister of defence in Mussolini’s Nazi-backed Salò Republic in 1943–5, however, threatened his heroic reputation as he worked with Nazi commanders and became responsible for atrocities against Italian civilians. After the Second World War, Graziani was tried for Nazi collaborationism at the Supreme Court in 1948, but his colonial conduct was left unquestioned. Unlike in the Nuremberg Trials in post-Nazi Germany, few Italians were tried for war crimes after 1945. This historical inquiry analyses the legal proceedings, transnational representation and outcome of Rodolfo Graziani’s 1948 trial as an emblematic case study to explore de-fascistisation and decolonialisation initiatives and their limitations in post-Fascist postcolonial Italy.

Recently, it is proven that positive harmonic functions defined in the unit disc or the upper half-plane in $\mathbb{C}$ are contractions in hyperbolic metrics [14]. Furthermore, the same result does not hold in higher dimensions as shown by given counterexamples [16]. In this paper, we shall show that positive (or bounded) harmonic functions defined in the unit ball in $\mathbb{R}^{n}$ are Lipschitz in hyperbolic metrics. The involved method in main results allows to establish essential improvements of Schwarz type inequalities for monogenic functions in Clifford analysis [24, 25] and octonionic analysis [21] in a unified approach.

This research note contributes to moving the scholarly field of international investment law beyond its dominant focus in recent decades on issues of post-admission investment protection and investor–State dispute settlement (ISDS). Specifically, it maps a future research agenda focusing on issues of investment facilitation and investment liberalization. This research note analyses several common and important themes that arise in relation to treaty-based investment facilitation and investment liberalization commitments. These include the value-added of international legally binding obligations, the impact of international commitments on States' applied policies, and a notable shift away from investor–State arbitration towards State–State dispute settlement only and mechanisms for ongoing cooperation between the treaty parties. These themes raise challenging questions, which often call for future empirical research employing methods other than traditional legal analysis. Nevertheless, this research note suggests that the scholarly field of international investment law has much to gain from shifting some of its focus away from well-versed issues of investment protection and ISDS towards under-researched questions concerning investment facilitation and investment liberalization commitments.

In this paper, we show that for a large natural class of vertex operator algebras (VOAs) and their modules, the Zhu’s algebras and bimodules (and their g-twisted analogs) are Noetherian. These carry important information about the representation theory of the VOA, and its fusion rules, and the Noetherian property gives the potential for (non-commutative) algebro-geometric methods to be employed in their study.

In this note, we study the relationship between tax evasion and economic growth in a model where public expenditure allows to improve private capital productivity, and it is financed by both taxes and public debt. Here, we define debt to be sustainable if the debt/GDP ratio resulting from agents optimization converges toward a finite equilibrium that is endogenous to the model. We show that: (i) the level of public expenditure which maximizes growth does not depend on audit parameters, (ii) evasion reduces the range of parameters for which the debt/GDP ratio is sustainable, and (iii) the debt/GDP ratio is sustainable if the total factor productivity is sufficiently high.

Trap colour can be an important consideration in detection programmes for arboreal and saproxylic beetles. Green and purple intercept traps are more attractive than black intercept traps to the emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), an invasive species in North America. In four experiments, I tested three commercial multiple-funnel traps (green, purple, and black), baited with various lure blends, to determine the relative effects of trap colour on catches of other bark and woodboring beetles, and their associated predator species, in north–central Georgia, United States of America. I captured numerous species of Cerambycidae (Coleoptera) (n = 51), Curculionidae (Coleoptera) (n = 33), and associated predators (Coleoptera) (n = 22) across the four experiments. However, the majority of the species captured were either unaffected by trap colour or were caught in greater numbers in black and purple traps than in green traps. The two exceptions were the predators Enoclerus ichneumonus (Fabricius) (Coleoptera: Cleridae) and Pycnomerus sulcicollis LeConte (Coleoptera: Zopheridae), which were more abundant in green traps than in black traps. Purple traps performed better than black traps for the following species: Cnestus mutilatus (Blandford) (Coleoptera: Curculionidae), Cossonus corticola Say (Coleoptera: Curculionidae), Xylobiops basilaris (Say) (Coleoptera: Bostrichidae), Buprestis lineata Fabricius (Coleoptera: Buprestidae), and Namunaria guttulata (LeConte) (Coleoptera: Zopheridae).

Western plainsong studies have typically focused on fully notated manuscripts, which provide the most complete witnesses to the repertories that have interested scholars in the field. Recent work, however, has shown that partially notated manuscripts, fragments, and marginalia can yield different kinds of insights into manuscript culture, as well as the uses and functions of musical notation. This article explores how a partially notated manuscript preserving the Old Hispanic rite, Toledo, Cathedral Archive, MS 35–6 (T6), can expand our knowledge of Old Hispanic chant, its scribal practices, manuscript culture, and notation. We identify the specific palaeographical traits and melodic dialects associated with each scribe. On this basis, we hypothesize that scribes used notation for a variety of reasons: to train in singing and writing, to practise writing, to correct particular melodies and notational forms, to preserve particular versions within a variant melodic tradition, and as an aide-memoire. T6 offers new insights into the various ways that the Old Hispanic oral tradition could be supported by writing.

Amid a new era of disruption spawned by looming climate threats and significant geopolitical tensions, an increasing number of countries have favored a more robust green industrial policy (GIP) to reduce carbon emissions and achieve other economic, political, and geostrategic objectives. The use of multi-purpose GIPs not only raises questions regarding the policies' compatibility with the World Trade Organization (WTO) rules but also, more broadly, profoundly implicates the interface between energy, trade, and the environment. This article selects China, the United States, and the European Union as case studies and provides a thorough analysis of the specific text and context of their GIPs to identify the new trends that deviate from past practices in order to capture the policy transformation. It highlights the disruptively adverse implications of the multi-purpose GIPs on the multilateral trading system. However, the WTO has an opportunity to mitigate such disruptions and avoid a seemingly unavoidable clash by facilitating international cooperation and coordination in the design and implementation of multi-purpose GIPs, particularly among major clean energy producer countries. In doing so, the WTO can strengthen its credibility and stability while also minimizing the misalignment of the diverse objectives and ensuring the decarbonization efforts will not undermined.