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\"In 1970s Osaka, college student Tetsuyuki moves into a shabby apartment to evade his late father's creditors. But the apartment's electricity hasn't been reconnected yet, and Tetsuyuki spends his first night in darkness. Wanting to hang up a tennis cap from his girlfriend, Yهoko, he fumbles about in the dark and drives a nail into a pillar. The next day he discovers that he has pierced the body of a lizard, which is still alive. He decides to keep it alive, giving it food and water and naming it Kin. Inhabitation unfolds from there, following the complications in Tetsuyuki's relationship with Yهoko, a friendship with his supervisor who hides his heart disease at work, and his father's creditors, always close on his heels. Daunted, Tetsuyuki speaks to Kin night after night, and Kin's peculiarly tortured situation reflects the mingled pain, love, and guilt that infuses Tetsuyuki's human relationships\"-- Provided by publisher.

On June 18, 2018, an MJMA6.1 inland crustal earthquake occurred on the northeast edge of the Osaka basin, Japan. This event impacted the region by the maximum PGA larger than 0.9 g, and it was followed by a series of weaker aftershocks. The earthquakes were located near the Arima-Takatsuki Tectonic Line (ENE–WSW dextral strike-slip faults) and the Uemachi fault system (N–S reverse faults), hence the seismotectonic interpretations we assumed to be rather complex. Here we propose a seismotectonic model of this sequence based on seismological data and stress field considerations. In particular, we infer to a centroid moment tensor for the mainshock using Bayesian full-waveform inversion from strong motion records. The solution of Mw5.6 involved a significant CLVD component, which we interpreted as being due to rupture process on a complex fault geometry. Decomposition of the non-DC moment tensor into major and minor pure-shear moment tensors suggests a combination of strike-slip and reverse faulting mechanisms. We also analyzed the 108 strongest aftershocks with MJMA between 2.0 and 4.1 using records from broadband and short-period stations. Aftershocks’ moment tensors inverted from P-wave amplitudes exhibit mainly strike-slip and reverse faulting mechanisms, having significant spatial variations. The local stress field inverted from these mechanisms had a dominant maximum (compressional) principal stress σ1 in ESE–WNW direction, while σ2 ≅ σ3. Both ENE–WSW dextral strike-slip and N–S reverse faults can be active in such stress field as observed in the mainshock (without any need for stress spatial inhomogeneity). To conclude, the activated strike-slip fault is parallel to the Arima-Takatsuki Tectonic Line. The activated N–S reverse fault is dipping to east by 50° similarly as the Uemachi fault system. Joint shear movements on both of these faults contributed significantly to the total seismic moment of the mainshock.

Despite the challenges in identifying earthquake precursors in intraplate (inland) earthquakes, various hydrological and geochemical measurements have been conducted to establish a possible link to seismic activities. Anomalous increases in radon ( 222 Rn) concentration in soil, groundwater, and atmosphere have been reported prior to large earthquakes. Although the radon concentration in the atmosphere is lower than that in groundwater and soils, a recent statistical analysis has suggested that the average atmospheric concentration over a relatively wide area reflects crustal deformation. However, no study has sought to determine the underlying physico-chemical relationships between crustal deformation and anomalous atmospheric radon concentrations. Here, we show a significant decrease in the atmospheric radon concentration temporally linked to the seismic quiescence before the 2018 Northern Osaka earthquake occurring at a hidden fault with complex rupture dynamics. During seismic quiescence, deep-seated sedimentary layers in Osaka Basin, which might be the main sources of radon, become less damaged and fractured. The reduction in damage leads to a decrease in radon exhalation to the atmosphere near the fault, causing the preseismic radon decrease in the atmosphere. Herein, we highlight the necessity of continuous monitoring of the atmospheric radon concentration, combined with statistical anomaly detection method, to evaluate future seismic risks.

The geometries (i.e., dip angles) of active faults from the surface to the seismogenic zone are the most important factors used to evaluate earthquake ground motion, which is crucial for seismic hazard assessments in urban areas. In Osaka, a metropolitan city in Japan, there are several active faults (e.g., the Uemachi and Ikoma faults), which are inferred from the topography, the attitude of active faults in surface trenches, the seismic reflection profile at shallow depths (less than 2 km), and the three-dimensional distribution of the Quaternary sedimentary layers. The Uemachi and Ikoma faults are N–S-striking fault systems with total lengths of 42 km and 38 km, respectively, with the former being located ~ 12 km west of the latter; however, the geometries of each of the active faults within the seismogenic zone are not clear. In this study, to examine the geometries of the Uemachi and Ikoma faults from the surface to the seismogenic zone, we analyze the development of the geological structures of sedimentary layers based on numerical simulations of a two-dimensional visco-elasto-plastic body under a horizontal compressive stress field, including preexisting high-strained weak zones (i.e., faults) and surface sedimentation processes, and evaluate the relationship between the observed geological structures of the Quaternary sediments (i.e., the Osaka Group) in the Osaka Plain and the model results. As a result, we propose geometries of the Uemachi and Ikoma faults from the surface to the seismogenic zone. When the friction coefficient of the faults is ~ 0.5, the dip angles of the Uemachi and Ikoma faults near the surface are ~ 30°–40° and the Uemachi fault has a downward convex curve at the bottom of the seismogenic zone, but does not converge to the Ikoma fault. Based on the analysis in this study, the dip angle of the Uemachi fault zone is estimated to be approximately 30°–40°, which is lower than that estimated in the previous studies. If the active fault has a low angle, the width of the fault plane is long, and thus the estimated seismic moment will be large.

Today, when the passage of spatial continuity seems in many ways impossible due to the geopolitical crisis and the weakening of multilateralism, Michelangelo’s 3D David becomes the symbolic Renaissance agent capable of fostering inter-sectorial, inter-generational, inter-religious evolutionary processes by transversely intercepting culture, engineering and data sciences.

We decomposed complex synthetic wavefields in an inhomogeneous sedimentary basin into P-, SV-, and SH-wavefields, and quantitatively evaluated the amplitude, propagation velocity, and propagation direction of coherent waves in each decomposed wavefield within the 0.125–1 Hz frequency band. In sedimentary basins with irregular subsurface structures, P-, SV-, and SH-waves can coexist at the same location and time, propagating as either body waves or surface waves, where SH-waves manifest as Love waves and P- and SV-waves combine to form Rayleigh waves. The relative amplitudes of these wave types depend on both the source radiation pattern and the subsurface geometry. To accurately evaluate the propagation characteristics, such as amplitude and directional variation, of each wave type, it is necessary to first decompose the wavefield by wave type. To date, no studies have addressed this issue from such a perspective. We fully decomposed the reproduced strong-motion waveforms from the 2018 Mw 5.6 earthquake beneath the margin of the Osaka sedimentary basin in Japan—the target event of this study—into P-, SV-, and SH‑wave components using Helmholtz decomposition. By applying semblance analysis to the decomposed wavefields, we quantitatively evaluated the propagation processes of each wave type in the three-dimensional sedimentary basin. Using the derived propagation characteristics, we conducted pseudo-trajectory analysis (PTA) to visualize wave propagation paths, analogous to streamlines in fluid dynamics. We noted spatial differences in the SH‑ and SV‑wavefields. For example, during an early time window, ground motions were oriented northwest–southeast on both sides of the north–south fault zone in the Osaka Plain. These motions result from southwestward-propagating SH-waves in the western region and southeastward-propagating SV-waves in the eastern region. Later, in the western region, Love waves dominated in the 0.125–0.25 Hz band, while Rayleigh waves dominated in the 0.25–0.5 Hz band. The spatiotemporal amplitude variations of these wave types depend on the combined effects of the source radiation pattern and the subsurface structure as noted above. The proposed method can also be applied to identify, where and what types of waves are likely to be generated. Graphical Abstract

This paper examines the criminal justice activism of tennis star Naomi Osaka as it evolved during the COVID-19 pandemic regarding matters of police violence and racial justice. Calls to reform and defund the police received much attention in the aftermath of the police killing of George Floyd in May 2020. The Floyd killing also motivated Naomi Osaka to begin her criminal justice activism, which has generally been very well received. Adopting a constructionist perspective, I investigate how Osaka’s criminal justice activism has, in the broader context of the development of celebrity culture, been subjectively motivated and inter-subjectively received by the public and in the news media. Theoretically this paper has the two-fold objective of developing a model of the conditions favorable to the successful reception of celebrity activism and, additionally, of suggesting how such criminologically relevant activism can be understood in terms of a process of celebritization of criminal justice and police reform as causes worthy of attention. This case study of Osaka’s criminal justice activism reveals the important role a celebrity can play in influencing public sentiments about key aspects of policing and crime control as an important element of criminal justice culture.

Professional tennis players and sports media personalities offered their thoughts regarding Naomi Osaka's May 31 decision to withdraw from the French Open out of concern for her mental well-being.

Increasing attention to athlete mental health Vulnerability about mental health has been considered inconsistent with competitive athletic culture and assumes elite athletes are role models of toughness both physically and mentally.1 Thankfully in recent years, sports medicine organisations have been focusing more attention on athlete mental health. In 2019, the International Olympic Committee (IOC) and the Canadian Center for Mental Health and Sport released publications regarding mental health evaluation, treatment and prevention.2 3 Soon after, the American Medical Society for Sports Medicine (AMSSM) published their position statement addressing psychological and environmental factors that commonly impact athlete mental health.4 Several recent efforts have aimed to better identify mental health challenges in athletes. The depression screening tool PHQ4 was added to the Preparticipation Physical Evaluation Monograph,5 and the IOC expanded provider resources with its mental health toolkit, which included the Sports Mental Health Assessment Tool.6 For the first time, the US Olympic and Paralympic Committee also required mental health screening for all Team USA athletes and brought mental health officers to the Tokyo Olympics and Paralympics. The potential unhealthy impact of media The AMSSM Position Statement on mental health in athletes acknowledges that mental health challenges can be affected by the athletic environment.4 This can include the direct and indirect interaction of athletes with the media, which is realised in various ways.