A new tiger beetle from the Gulf Coast of Texas (Coleoptera, Cicindelidae, Cicindelini)

A new tiger beetle species, Eunota albicauda Duran, Roman & Huber n. sp., of the tribe Cicindelini, is described from the Gulf Coast of southern Texas. It is superficially most similar to E. togata (LaFerté-Sénectère, 1841) and E. circumpicta (LaFerté-Sénectère, 1841) but is distinguished on the basis of multiple character states not shared with either species. We reconstructed a phylogeny for Eunota to address the placement of this new taxon. Little is known about the biology or distribution of this exceedingly rare species. Despite extensive tiger beetle collecting from this region, only two specimens of E. albicauda n. sp. are known, collected in the mid-20th century. Future efforts to locate additional specimens should focus on coastal salt flats and marshes in southern Texas, including areas near the United States-Mexico border, late in the season (September-October).

Running Rotterdam: on how locals’ participation in running events fosters their sense of place

Building on the insights of scholarship highlighting specific aspects of the forming of place meanings and experiences during running (events), this paper aims at applying a more holistic perspective on how meanings attached to and experiences of place by local runners are shaped through both individual and collective sense-making. Conceptually, the paper combines (post-)phenomenological and symbolic interactionist approaches. Empirically, the paper focuses on the Dutch city of Rotterdam and draws on extensive fieldwork conducted at the 2018 edition of the NN Marathon Rotterdam, and two smaller scale, non-commercially oriented running events organized by a local running club in 2017. Based on this qualitative research, the paper demonstrates that individual local runners’ understandings and embodied experience of the physical and social environment is always situated in, and interwoven with, broader social meanings and instances of shared embodiment. At the same time, the paper reflects on the methodological challenges faced by research on running (events) and calls for a more explicit acknowledgement of the multiple character of the running world(s) studied, and of the trade-offs between the different research techniques applied.

Exponential sum estimates over prime fields

In this paper, we prove some extensions of recent results given by Shkredov and Shparlinski on multiple character sums for some general families of polynomials over prime fields. The energies of polynomials in two and three variables are our main ingredients.

Using multiple character strengths to inform young adults’ self-compassion: The potential of hope and forgiveness

Self-compassion is an adaptive means of relating to the self during times of distress. Character strengths include a set of traits and values that ultimately uplift the self and others. Although self-compassion is known to be associated with multiple character strengths, there remain opportunities to address whether particular strengths uniquely inform individual differences in self-compassion. Using three studies, strengths of curiosity, grit, gratitude, hope, and forgiveness were considered to determine which strengths provided unique information for reports of self-compassion. Results showed that hope and forgiveness were robustly associated with self-compassion when these strengths were studied simultaneously (Studies 1 and 2) and alongside Big Five covariates (Study 2). Study 3 showed that the effects of hope and forgiveness on self-compassion were comparable between college- and community-recruited young adults. Overall, findings suggest that hope and forgiveness may be promising targets to further understand and ultimately promote self-compassion.

Mosaic evolution, preadaptation, and the evolution of evolvability in apes

A major goal in post-synthesis evolutionary biology has been to better understand how complex interactions between traits drive movement along and facilitate the formation of distinct evolutionary pathways. I present analyses of a character matrix sampled across the haplorrhine skeleton that revealed several modules of characters displaying distinct patterns in macroevolutionary disparity. Comparison of these patterns to those in neurological development showed that early ape evolution was characterized by an intense regime of evolutionary and developmental flexibility. Shifting and reduced constraint in apes was met with episodic bursts in phenotypic innovation that built a wide array of functional diversity over a foundation of shared developmental and anatomical structure. Shifts in modularity drove dramatic evolutionary changes across the ape body plan in two distinct ways: 1) an episode of relaxed integration early in hominoid evolution coincided with bursts in evolutionary rate across multiple character suites; 2) the formation of two new trait modules along the branch leading to chimps and humans preceded rapid and dramatic evolutionary shifts in the carpus and pelvis. Changes to the structure of evolutionary mosaicism may correspond to enhanced evolvability that has a ‘preadaptive’ effect by catalyzing later episodes of dramatic morphological remodeling.

A Multilingual and Multidomain Study on Dialog Act Recognition Using Character-Level Tokenization

Automatic dialog act recognition is an important step for dialog systems since it reveals the intention behind the words uttered by its conversational partners. Although most approaches on the task use word-level tokenization, there is information at the sub-word level that is related to the function of the words and, consequently, their intention. Thus, in this study, we explored the use of character-level tokenization to capture that information. We explored the use of multiple character windows of different sizes to capture morphological aspects, such as affixes and lemmas, as well as inter-word information. Furthermore, we assessed the importance of punctuation and capitalization for the task. To broaden the conclusions of our study, we performed experiments on dialogs in three languages—English, Spanish, and German—which have different morphological characteristics. Furthermore, the dialogs cover multiple domains and are annotated with both domain-dependent and domain-independent dialog act labels. The achieved results not only show that the character-level approach leads to similar or better performance than the state-of-the-art word-level approaches on the task, but also that both approaches are able to capture complementary information. Thus, the best results are achieved by combining tokenization at both levels.