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A new entomopathogenic nematode, Steinernema chainatense n. sp., was isolated during sampling in a cassava field in Chai Nat Province, Central Thailand. A combination of morphological, morphometric, and molecular traits places the new species within the longicaudum clade of the glaseri-group. Infective juveniles (IJs) of S. chainatense n. sp. are characterised by a body length of 871 (798–939) μm, a maximum body diameter of 27 (24–30) μm, and a lateral field with eight equally developed ridges at mid-body and a formula of 2, 6, 8, 2. First-generation males are characterised by large, brown spicules, 88 (80–95) μm long, with a well-developed velum. The male genital papillae number 25 in total, comprising 12 pairs and a single midventral papilla. The internal transcribed spacer (ITS) and D2–D3 sequences differ from those of other members of the longicaudum clade by 3.6–10.4% and 1.5–3.5%, respectively. Phylogenetic analysis based on the ITS region of rDNA indicates a close relationship between S. chainatense n. sp. and S. taiwanensis, S. adamsi, S. guangdongense, and S. longicaudum, with S. taiwanensis as its sister taxon. The bacterial symbiont of S. chainatense n. sp. is the recently described Xenorhabdus thailandensis. These morphological and molecular differences support the recognition of S. chainatense n. sp. as a distinct species.
A new entomopathogenic nematode, Steinernema hattingi n. sp., was isolated during a survey in Mpumalanga Province of South Africa. Morphological and morphometric traits place the species in the glaseri-group, characterised by large infective juveniles (IJs) with average body length exceeding 1000 μm. The IJs of S. hattingi n. sp. have a mean body length of 1059 μm, lateral fields composed of eight equally spaced ridges (nine incisures) at mid-body (formula 2, 6, 8, 4, 2), a relatively short tail (c ratio 16 on average) with a hyaline region occupying approximately 45% of its length, and are relatively slender (a ratio 33 on average). Male spicules are curved, brown, with a pointed tip and an elongate manubrium (length/width ratio 1.8:1); male tails are non-mucronate or occasionally with a short papilla-like mucron in second-generation males. First-generation females have a moderately protruding, slightly asymmetrical vulva without postanal swelling, whereas second-generation females display a protruding, asymmetrical vulva and a slightly developed postanal swelling. The species is further characterised by sequences of the internal transcribed spacer (ITS) and partial 28S rDNA (D2–D3) regions. Phylogenetic analyses place S. hattingi n. sp. within the Khoisanae clade of the glaseri-group.
Freshwater streams in Iraq harbour a remarkable diversity of fish species. A similarly high diversity has also been recorded for diplozoid parasites, which are commonly associated with the cyprinoid fishes. A new species, Paradiplozoon vorax sp. nov., is described from Leuciscus vorax from Al-Gharraf River. This is the 21st Paradiplozoon species recorded from Iraq and presumably the 11th species from this fish host. Phylogenetic analyses based on the ITS2 rDNA region revealed a close relationship between P. vorax sp. nov. and P. pavlovskii, which exhibits a wide geographical range spanning Europe and the Middle East. Although these two species are morphologically similar, they differ in important characters such as the number of folds in the hindbody, the shape of postovarian caecum or the shape of anterior joining sclerite of clamps. It is hypothesized that these two species originated by vicariant speciation from a common ancestor associated with ancestral Aspius-like leuciscids.
A theory of some finding or observation is an explanation of that finding or observation. Further, a good theory is a set of principles that are sufficient to show that the phenomenon is an instance of more general phenomena or principles. But not all explanations help us understand general phenomena because they lack some fundamental characteristics. The necessary characteristics of adequate explanations include explicit definitions and precise and limited scope, that is, they do not attempt to explain everything about a given event or action. Further, they can be tested with empirical data; they do not appeal to supernatural forces or to explanations with claims that testing is not necessary.
Chapter 5 begins a closer examination of the text included with the ‘lost’ and ‘runaway’ notices. Description, and more particularly object description, was an emerging textual praxis in the eighteenth century. It relied on writers understanding the relevant features of particular ‘things’ to make them visible within a particular culture. In analysing the ‘lost’ and ‘runaway’ notices, it becomes clear that readers and writers were aware of the salient features needed to describe different things, such as watches and dogs. What becomes apparent within this chapter is that different languages of possession existed for different possessions. The second half of the chapter then explores the forms of knowledge and memory required to write descriptions of absent ‘things’. It finds different methods of recording at play, such as noting down salient details in diaries and memorandum books. It also finds that individuals often did not rely on their own memory but rather called upon the records and knowledge of others, such as watchmakers. Here we see evidence of material literacy and knowledge, but also of how it was shared and enacted by a wider community.
What did it mean to possess something – or someone – in eighteenth-century Britain? What was the relationship between owning things and a person's character and reputation, and even their sense of self? And how did people experience the loss of a treasured belonging? Keeping Hold explores how Britons owned watches, bank notes and dogs in this period, and also people, and how these different 'things' shaped understandings of ownership. Kate Smith examines the meaning of possession by exploring how owners experienced and responded to its loss, particularly within urban spaces. She illuminates the complex systems of reclamation that emerged and the skills they demanded. Incorporating a systematic study of 'lost' and 'runaway' notices from London newspapers, Smith demonstrates how owners invested time, effort and money into reclaiming their possessions. Characterising the eighteenth century as a period of loss and losing, Keeping Hold uncovers how understandings of self-worth came to be bound up with possession, with destructive implications.
How we create believable characters. Resisting the urge to decide exactly who your character is before you know who your story needs them to be. The interdependence of character and plot and the emotional journey of the character. Moving beyond ‘show; don’t tell’: the interaction between characters allows the reader to get to know characters by observation rather than instruction. Managing minor characters. Conflict, consistency and contradiction all have a part to play in plausible characterisation. Characters come from you but they’re not you: the importance of freeing ourselves as writers from ourselves as people.
How we transform our memories and experiences into fiction beyond the injunction to ‘write what you know’. The imaginative process includes filling in the gaps of memory, embracing the freedom to invent, selecting a viewpoint and adding energy through dialogue. We need to consider not only which details and descriptions to include but which to omit: the balancing of information affects the meaning and impact of the story.
How to communicate the world of your story. The traditional character portrait and scene-setting description contrasted with the dominant contemporary development of character and context as the plot evolves. The function of description. Avoiding inappropriate lyricism. Immersion in time and place; repurposing our own experience and editing for focus. The subjective nature of description. Conveying, rather than merely describing, emotion, atmosphere, environment. The familiar and the unfamiliar. The effect of description on pace; discerning the extent and necessity for description. Embedding description in action. Using telling details.
How can you take your writing to the next level? In this follow-up to their acclaimed handbook The Book You Need to Read to Write the Book You Want to Write, Sarah Burton and Jem Poster offer exercises and practical advice designed to set aspiring authors of fiction on their way to creating compelling short stories and novels. Carefully explaining the purpose and value of each exercise and encouraging writers to reflect on what they have learned in tackling each task, this themed collection of writing prompts provides both encouragement and inspiration. There are many books of prompts already available, but this one is different. Its structured, in-depth approach significantly increases the impact of the exercises, ensuring that storytellers use their time and talent to best effect – not only exploring their own creativity but also developing a wider and clearer understanding of the writer's craft.
The present study describes a new Ditylenchoides species, isolated from Meknès, Morocco, during nematode surveys conducted to investigate the biodiversity of plant-parasitic nematodes in Mediterranean olive groves and adjacent patches of natural vegetation. Application of integrative taxonomical approaches clearly verified that it is a new species designated herein as Ditylenchoides morocciensis sp. nov., also representing the first report of the genus in Morocco. The new species is parthenogenetic, characterised by a short body 460 (373–528 μm); stylet delicate, relatively short, 8.7 (8.0–9.0) μm long with rounded basal knobs; six lines in the lateral fields; median bulb of pharynx oval, muscular and valvate; secretory-excretory pore located at the level of basal pharyngeal bulb region; vulva located at 79.9 (76.9–81.3) % of body length; relatively long post-vulval uterine sac 29.1 (20.0–39.0) μm; and a subcylindrical tail 24.4 (22.0–28.0) μm long, with a bluntly rounded tip. The results of molecular analysis of D2-D3 28S rRNA, ITS rRNA, partial 18S rRNA, and cytochrome oxidase c subunit 1 (COI) gene sequences support for the new species status and clearly separated D. morocciensis sp. nov. from all other species within Ditylenchoides. Phylogenetic analyses of ribosomal markers (D2-D3 28S rRNA and partial 18S rRNA) of this study confirms that Ditylenchoides is a monophyletic genus, clearly separated from other genera within Anguinoidea.
Chapter 4 addresses four types of issues. First, I delve into the ambiguous status of the idea of legitimacy in the discourse on politics. Legitimacy is both omnipresent and an object of suspicion. On the one hand, it is one of the terms most frequently used in conversations on politics. On the other hand, especially in the academic disciplines that deal with the study of politics, the notion of political legitimacy has its detractors. There is intellectual nervousness about embracing it and relying on it. Second, comparing natural sciences and social sciences, I explore some of the features of what a theory is (description, explanation and predictability) and what this means for the theory of social phenomena that factors in political legitimacy. Third, I examine two different approaches of politics: politics mainly as power, and politics mainly as community. Fourth, I highlight the centrality of legitimacy for a theory of politics as community.
During nematode surveys conducted to investigate the biodiversity of plant-parasitic nematodes in Mediterranean olive groves with different management strategies (organic and conventional), a nematode population of the genus Neothada was detected in southern Spain. Application of integrative taxonomical approaches clearly demonstrated that it is a new species described herein as Neothada olearum sp. nov., also representing the first report of the genus in Spain. The new species is amphimictic, characterised by a short body (563–774 μm); cuticle widely annulated (2.5–3.0 μm); total number of body annuli 214–226; 16 longitudinal ridges giving a tessellate body surface; stylet without distinct basal knobs (9.0–11.0 μm); and tail elongate-conoid, with tip bluntly rounded. The results of molecular analysis of D2-D3 28S rRNA, ITS rRNA, partial 18S rRNA, and cytochrome oxidase c subunit 1 (COI) gene sequences support for the new species status and clearly separated from N. major and other species within Neothada. Phylogenetic analyses of ribosomal and mitochondrial markers of this study suggested that Neothada is a monophyletic genus, clearly separated from Thada.
This study on distribution of Ophiothrix savignyi was carried out from 2017 to 2022 in the Iranian waters of the Persian Gulf. Nineteen locations were sampled from coastal waters, including 16 newly reported areas. O. savignyi was epizoic, associated mostly with sponges, sea urchins, and soft corals. This survey shows O. savignyi as the most common and widespread brittle star in the northern and eastern Persian Gulf. In this study, O. savignyi, has been described again from the Persian Gulf.
This chapter claims that two events marking the beginning and end of the decade—the Great Exhibition of 1851 and the publication of Charles Darwin’s On the Origin of Species—signal a continued interest in natural historic practices of classification, observation, and visualisation. Rajan argues more specifically that texts like On the Origin of Species and Charlotte Brontë’s Villette combine eighteenth-century practices of observation and description with contemporary modes of visualisation that were popularized through optical technologies like the stereoscope. While it has become customary to view Victorian visual technologies as breaking from the epistemological assumptions of early modern philosophy and science, Rajan demonstrates that accurate and vivid description in natural history and realist fiction in fact demanded a synthesis of competing epistemologies. The work of Darwin and Brontë thus allows us to trace a methodological overlap between nineteenth-century literature and science and reassess received intellectual histories of visual culture.
This chapter reviews the perspectives and levels of an analysis that inform how an observation is made. This is done by demonstrating that there are two perspectives (language use and the human factor) and five levels (summation, description, interpretation, evaluation, and transformation) of analysis in discourse analysis. These perspectives and levels can be used to understand the frameworks of established methodologies, such as conversation analysis, critical discourse analysis, and narrative analysis. After reading this chapter, readers will know that the analytic process can combine different perspectives and levels of analysis.
Once the data are collected and cleaned, we can start to explore features of the network. Taking an initial look at descriptive network statistics is a good way to take an overview of the data and to spot red flags that signal a problem with the data entry or cleaning. The earlier these can be identified, the better. This chapter serves as a tutorial for using R to do so using the igraph package. It introduces the process of importing a data file into R and walks through the first things you might do with the data, including computing descriptive statistics of the structural features, integrating substantive features of nodes and links, and visualizing the network.
Lucian is a master of ekphrasis – the art of rhetorical description and notably the vivid verbal evocation of works of art. One particular aspect of Lucian’s art historical enterprise is a comparative aesthetic. This extends beyond the comparison of artworks with other things or people (in texts whose titles signal such comparison) to some of the forms in which Lucian chose to write, notably dialogic media (whether dramatic of reported). This comparative game knowingly plays with the inevitable competition of art and text that inheres in the verbal description of the visual. Beyond this, Lucian takes synkrisis or comparison – a central trope in the rhetorical handbooks – and exploits it so as to give voice to the marginal, to elevate the alien and to emphasise questions of multiplicity and diversity within empire. This ideological exploitation of description is what in part has made Lucian so attractive and controversial since the era of Renaissance Humanism. The apparently unproblematic arena of visual aesthetics is brilliantly seized – not only by Lucian but also many of his modern readers – as a site within which to reveal the place, voice, and importance of cultural, ethnic and subaltern identities not always in simple harmony with the hegemonic status quo of the Roman empire.
In this chapter, we explore how Mandarin Chinese is used to describe and taxonomise phenomena in history discourse. While Systemic Functional Linguistics has had a long tradition of studying history discourse, particularly in English and Spanish, the focus has been on historical events and their impact. We show in our study that building knowledge of history also involves reporting what things were like in the past. We analyse a pedagogic text describing the development of handicrafts during the period of the Western Han dynasty (206 BC – AD 24), a particularly prosperous period in Chinese history. We approach the identification of language resources from a ‘tri-stratal’ and ‘top-down’ perspective, taking into account threefold aspects of meaning-making, including the static knowledge structure in the subject area, the language resources organised in the unfolding of the discourse, and the grammatical resources organised in the clause. We reveal that each meaning-making level has its unique characteristics in construing description and taxonomisation.
During nematode surveys of natural vegetation in forests of La Cima de Copey de Dota, San José, San José province, Costa Rica, a Xenocriconemella species closely resembling X. macrodora and related species was found. Integrative taxonomical approaches demonstrated that it is a new species described herein as X. costaricense sp. nov. The new species is parthenogenetic (only females have been detected) and characterised by a short body (276–404 μm); lip region with two annuli, not offset, not separated from body contour; first lip annulus partially covering the second lip annulus. Stylet thin, very long (113–133 μm) and flexible, occupying 30.5–47.8% of body length. Excretory pore located from one or two annuli anterior to one or two annuli posterior to level of stylet knobs, at 42 (37–45) μm from anterior end. Female genital tract monodelphic, prodelphic, outstretched, and occupying 35–45% of body length, with vagina slightly ventrally curved (14–18 μm long). Anus located 6–11 annuli from the tail terminus. Tail conoid and bluntly rounded terminus, the last 2–3 annuli oriented dorsally. Results of molecular characterisation and phylogenetic analyses of D2-D3 expansion segments of 28S rRNA, ITS, and partial 18S rRNA, as well as cytochrome oxidase c subunit 1 gene sequences further characterised the new species and clearly separated it from X. macrodora and other related species (X. iberica, X. paraiberica, and X. pradense).