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1. Past-as-Past in counterfactual desire reports: a view from Japanese

   https://doi.org/10.3765/salt.v1i0.5345  

   Mizuno, Teruyuki; Kaufmann, Stefan (December 2022, Semantics and Linguistic Theory)

   The semantic contribution of Fake Past in counterfactual expressions has been actively debated in recent semantic literature. This study deepens our current understanding of this natural language phenomenon by digging into the behavior of Past tense in Japanese counterfactual desire reports. We show that  the Past-as-Past approach to Fake Past makes correct predictions about its semantic behavior. 

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2. Introducing Morphology in Universal Dependencies Japanese

   Chihiro Taguchi and David Chiang (January 2023, Proceedings of the Sixth Workshop on Universal Dependencies (UDW, GURT/SyntaxFest 2023))

   This paper discusses the need for including morphological features in Japanese Universal Dependencies (UD). In the current version (v2.11) of the Japanese UD treebanks, sentences are tokenized at the morpheme level, and almost no morphological feature annotation is used. However, Japanese is not an isolating language that lacks morphological inflection but is an agglutinative language. Given this situation, we introduce a tentative scheme for retokenization and morphological feature annotation for Japanese UD. Then, we measure and compare the morphological complexity of Japanese with other languages to demonstrate that the proposed tokenizations show similarities to synthetic languages reflecting the linguistic typology. 

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3. Vibratory Signaling in Japanese Rhinoceros Beetles

   Smith, A M; Swanson, BO (January 2024, Integrative and comparative biology)

   Japanese Rhinoceros beetles (Trypoxylus dichotomous), known primarily for their large horns, are a classic example of ornate weaponry produced through sexual selection. The male beetle’s prominent horns are used in male-to-male combat for dominance and access to females. Observations in the lab and the field suggest that multiple forms of signaling are also involved in both the aggressive interactions and female mate choice. One such signal seems to be the songs created through male abdominal stridulation. Males perform both an alarm-style chirp (also seen in aggressive interactions) and rhythmic “purring” prior to copulation attempts. Several questions arise in relation to this behavior and its effect on mating outcomes: Is there a relationship between song characteristics and morphological characteristics? Can vibrations be transmitted through the surrounding substrate? Is there a relationship between song characteristics and courtship outcomes? To analyze these songs in the field, a Polytech VibroGo VG-200 laser vibrometer was used to measure the velocity of both the male’s elytra and surrounding tree bark during courtship. Vibrational amplitude and periodicity, corresponding location, beetle characteristics, and courtship details were collected. Male courtship song characteristics will be compared to morphological variables, as well as courtship outcomes. Substrate vibration transmission and attenuation will also be discussed. 

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4. Acquisition of empathy in child Japanese

   https://doi.org/10.1080/10489223.2021.2017439  

   Ohba, Akari; Deen, Kamil Ud (December 2021, Language Acquisition)
5. Characterization of Immune Aging in the Japanese Medaka (Oryzias latipes)

   https://doi.org/10.3390/fishes9090333  

   DiBona, Elizabeth; Humble, Joseph L; Duran, Daniel; Au, Doris_Wai Ting; Seemann, Frauke (August 2024, Fishes)

   The prevalence of chronic inflammation increases with age and may be aggravated by environmental exposures. Similarly, during immune aging, inflammatory disease incidence increases as protective immunity decreases. To better understand disease and exposure risks, an immune aging model outlining key changes in immune function is crucial. Utilizing the lowest possible vertebrate class, we propose the Japanese medaka (Oryzias latipes) as a model to investigate sex-specific immune aging including changes in immune gene expression, leukocyte profiles, and organismal level immune response. Evaluating the expression of immune initiators (CRP, TLR5-s, TLR5-m, TCRb, and MHCII), immune mediators (MYD88, Nf-kß, C3, and IL1b), and immune effectors (LYZ and C8) in concomitance with alterations in leukocyte populations and host resistance to pathogens will inform about immune competence across ages. The data presented here demonstrate a critical decrease in the expression of immune initiators (CRP, TLR5-soluble, TCRb, and MHCII), mediators (MYD88, Nf-kß, C3, and IL1b), and effector (LYZ) in both females and males after 11 months post hatching (mph). Interestingly, both sexes displayed an upregulation for the immune effector, C8, during this older life stage (11–13 mph). Gene expression profiles for both sexes at the most elderly age (20 or 23 mph) appear to revert to a younger profile of expression indicating a second change in immune function during aging rather than a steady decline. Significant changes in leukocyte populations were observed in both male and female medaka after peaking sexual maturation at 3 mph. Organismal level immune competence data revealed male medaka at the elderly age to be more vulnerable than their female and younger male counterparts while no differences were observed in females based on age. Together, these data provide a holistic profile for immune aging in medaka, a useful tool for future immunological studies considering age as a factor influencing disease susceptibility. 

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