Is the Stock Market Performance Vulnerable to the Russian–Ukrainian War? Evidence From the Twitter Sentiment Index

ABSTRACT Utilising Twitter's daily negative investor sentiment index based on the Russian–Ukrainian war event, this study explores the impact of the investor sentiment index on company stock market returns and liquidity through a comprehensive analytical framework of panel regression and panel vector autoregression models. The results show that there is a negative correlation between the Twitter‐based negative investor sentiment index and company stock returns, the direction of company stock inflows, and a positive correlation with stock trading volume; companies that do not respond to decisions promptly after the issuance of sanctions are more significantly affected by investor sentiment. Meanwhile, the findings of this study remain robust after using a system‐generalised method of moments model to consider potential endogeneity and replacing the samples in different periods. Finally, the paper gives insights into the role of government agencies, investors and firms in facing major event shocks and predicting stock market performance.

Temporary aortic occlusion with the abdominal tourniquet for refractory postpartum hemorrhage: A proof‐of‐concept study in a war‐affected region

Abstract Objective To evaluate the feasibility and preliminary clinical efficacy of the abdominal aortic tourniquet as a temporary intervention for managing severe postpartum hemorrhage (PPH) resulting from uterine atony in a war‐affected region. Methods This prospective, open‐label, non‐randomized, proof‐of‐concept study was performed at Olexandrivska Hospital, Zaporizhzhia, Ukraine from December 2024 to April 2025. Four women (≥18 years) with primary PPH (>1000 mL blood loss) unresponsive to standard management (uterotonics, balloon tamponade) were included. The abdominal aortic tourniquet was applied, achieving temporary aortic occlusion by inflating it to 250 mm Hg pressure for a duration of up to 45 min. Clinical outcomes, feasibility, and safety parameters were assessed. Results In all cases, external bleeding was effectively controlled within 2 min of tourniquet inflation. This provided critical time for mobilizing the surgical team, preparing the operating theater, administering anesthesia, and delivering blood products. The device remained in place during a mean period of 38.8 min (range 30–45 min). After achieving adequate anesthesia and availability of resources, the device was deflated under observation. In three patients (75%), bleeding resumed upon release of the aortic compression, prompting immediate surgical intervention. In one patient (25%), bleeding ceased spontaneously after deflation without further intervention. No device‐related complications, thrombotic events, infections, or ischemic injuries were observed. Conclusion The abdominal aortic tourniquet was effective in temporarily controlling severe PPH in a conflict‐affected, resource‐limited setting. By safely bridging the critical time gap before definitive surgical management, this life‐saving intervention demonstrated considerable potential for use in resource‐limited and crisis settings.

Addressing sexual violence as a weapon of war: A critical call for action in eastern Democratic Republic of Congo

Letter to the editor: Temporary aortic occlusion with the abdominal tourniquet for refractory postpartum hemorrhage: A proof‐of‐concept study in a war‐affected region

Response: Temporary aortic occlusion with the abdominal tourniquet for refractory postpartum hemorrhage: A proof‐of‐concept study in a war‐affected region

Susceptibility to Disinformation: A Data‐Driven Typology Based on COVID ‐19 Hoaxes and Pro‐Russian Propaganda

ABSTRACT An original dataset based on a national quota sample in the Czech Republic ( n  = 490, M  = 46.09 y/o, 45.7% women) was used to assess susceptibility to medical (COVID‐19) and political (Russian invasion of Ukraine) disinformation. Susceptibility to disinformation was assessed using 30 items addressing contemporary topics. To identify the latent structure underlying these items, an exploratory factor analysis (principal‐axis factoring with direct oblimin rotation) was conducted. EFA yielded four correlated factors: one specific to COVID‐19 hoaxes/misinformation (F1) and three others pertaining to the political (F2), economic (F3), and moral/ethical (F4) dimensions of the Russian war. In order to identify response patterns, all 30 items from 490 participants were subjected to Latent Profile Analysis (LPA) in which the EFA factors served to interpret the five resulting types: a neutral No Strong Opinion type (48%); two disinformation‐resilient types— Rational Pro‐Ukrainians (22%) and Anti‐Russians (7%); and two disinformation‐susceptible types— Pro‐Russians (15%) and the Generally Disinformed (9%). The discussion addresses the sizable No Strong Opinion type and the correlation between COVID‐19 hoaxes and propaganda disinformation ( r  = 0.47), which supports the ‘monological belief system’ concept. The identified types can be further followed prospectively and retrospectively within an ongoing panel study.

Moral Injury and Post‐Traumatic Stress Disorder in War: The Effect of Marital Status and Previous Genocidal Trauma

ABSTRACT This study examines the intergenerational transfer of the genocidal trauma of the Holodomor (1932–33) and explores how marital status moderates its impact on moral injury and post‐traumatic stress disorder (PTSD) in the context of the ongoing Russia‐Ukraine war. Moral injury, distinct from PTSD, arises from the violation of moral beliefs, leading to emotional distress characterised by guilt, shame, anger, disgust and a sense of betrayal. While previous research predominantly focused on direct survivors of genocide, this study expands the understanding of moral injury to their descendants, particularly the third and fourth generations, highlighting the often‐overlooked familial dynamics involved. Through a sample of 1857 participants, our findings reveal that married descendants of Holodomor survivors exhibit significantly higher levels of moral injury when familial genocidal trauma is present, contrasting with non‐married individuals who show no significant difference. This suggests that marital status plays a vital role in shaping the emotional burden of inherited moral injury, as these individuals grapple with the dual responsibilities of familial protection and the distress of genocidal trauma. Our results indicate that the interaction of genocidal trauma and marital status does not extend to PTSD. These findings emphasise the need for targeted family‐based interventions to address the complexities of intergenerational moral injury.

The impact of mother's mental health, infant characteristics and war trauma on the acoustic features of infant‐directed singing

Abstract Infant‐directed singing (IDSi) is a natural means of dyadic communication that contributes to children's mental health by enhancing emotion expression, close relationships, exploration and learning. Therefore, it is important to learn about factors that impact the IDSi. This study modeled the mother‐ (mental health), infant‐ (emotional responses and health status) and environment (war trauma)‐related factors influencing acoustic IDSi features, such as pitch (F0) variability, amplitude and vibration and the F0 contour of shapes and movements. The participants were 236 mothers and infants from Gaza, the Occupied Palestinian Territories. The mothers reported their mental health problems, infants’ emotionality and regulation skills, and, along with pediatric checkups, illnesses and disorders, as well as traumatic war events that were also photo documented. The results showed that the mothers’ mental health problems and infants’ poor health status were associated with IDSi, characterized by narrow and lifeless amplitude and vibration, and poor health was also associated with the limited and rigid shapes and movements of F0 contours. Traumatic war events were associated with flat and narrow F0 variability and the monotonous and invariable resonance and rhythm of IDSi formants. The infants’ emotional responses did not impact IDSi. The potential of protomusical singing to help war‐affected dyads is discussed.

Stimuli‐responsive hydrogels: An intelligent tool for wound management

Abstract Wound healing represents a well‐coordinated and sophisticated biological process characterized by the need for precise regulation and spatiotemporal synergy of multiple cells, regulatory cytokines, and signaling pathways, ultimately achieving repair and functional reconstruction of damaged tissues. In complex situations such as war, disasters and diseases, how to carry out wound management in a truly effective manner still stands as a notable challenge. The microenvironment of wound is multi‐dimensional, dynamic and complex, the wound healing process is collectively regulated by endogenous biochemical signals and exogenous physical, chemical, biological factors, which makes traditional dressings often fall short of expectations in the wound healing. Stimuli‐responsive hydrogels, by sensing endogenous factors (like pH, reactive oxygen species, and glucose, along with specific enzymes) or exogenous factors (light, temperature, electric fields, etc.), exhibit various intelligent characteristics, such as interacting with wounds, monitoring wound conditions or microenvironment changes, achieving precise drug release control or dynamic assessment of the wound healing process, thereby effectively promoting wound healing. Stimuli‐responsive hydrogel tissue engineering strategies (scaffolds, nanofibers, microneedles, microspheres, etc.) also provide more options for wound repair. Serving as a critical overview of stimuli‐responsive hydrogels, this review delves into the recent application scenarios of these hydrogels in wound management, systematically summarizes the attendant challenges, and seeks to offer a useful reference for studies in this research field.

A Longitudinal Study of the Associations Between War Exposure, Psychiatric Symptoms, Digital Engagement, and Substance Use in Adolescents

ABSTRACT Objective This longitudinal study investigated the associations between exposure to political violence and screen and substance use in 1646 Israeli adolescents (aged 12–17) from southern Israel, an area significantly impacted by an ongoing war and conflict. Methods The data were collected at two time points: shortly after the outbreak of the war (October 2023) and at the end of the school year (June 2024). It examined changes in digital engagement, including internet and social media use, trends in substance use (tobacco, alcohol, vaping, and cannabis), and how political life events and psychiatric symptoms influenced these behaviors. Results The findings revealed significant increases in screen time, particularly internet and social media use, that correlated with heightened exposure to political violence and worsening psychiatric symptoms. Tobacco use decreased slightly, while alcohol consumption increased. Older participants engaged less in gaming but more in social media. Boys reported higher levels of gaming but lower social media, alcohol and vaping use than girls. Conclusions These findings underscore the urgent need for interventions addressing the interrelated challenges of digital media consumption and substance use in youth exposed to war‐related conflicts.