Research finds that individuals of dark complexions are more likely to face prejudice or be discriminated against in a variety of contexts. Referred to as colorism, skin-tone-based discrimination has major implications for various life outcomes. Research on social interactions suggests that lighter skin tones are associated with a higher level of physical attractiveness, which is of particular interest for this study. This study uses quantitative survey data collected from undergraduate and graduate students from across the United States to explore the relationship between colorism, gender, and perceived physical attraction via a modified version of Harvey, Tennial, and Bank’s In-Group Colorism Scale (ICS). Analyses measured the relationship between a participant’s own skin tone, which was self-assessed via comparison to images modeled after make-up swatches, and results on a subscale of the ICS which measures attraction to lighter skin tones. Our results suggest that gender has a significant impact on perceived physical attractiveness, with male-identifying participants placing more weight on the significance of skin tone when determining physical attraction. Implications for future research and translational implications are also discussed.

This article argues that Hebrew theatre is defined by a hegemonic Ashkenaziness that has been present from its beginning and which continues today. It identifies four main components of this hegemony, each of which is examined in turn. The first two components, Hebrew culture and Eurocentrism, are analyzed in relation to the repertoire of plays presented at such theatres as Habima, Ohel, and Cameri. This repertoire combines Yiddish plays and translations of European plays, while also reproducing Orientalist attitudes towards Mizrahi culture. The third component, privileged citizenship, centres on the privileges afforded to Ashkenazi artists and actors in the theatre when compared to Mizrahi actors, especially in terms of casting decisions. Finally, hegemonic Ashkenaziness is defined by membership of the middle class, which, in the theatre, leads to productions being targeted at an Ashkenazi audience and its cultural capital.

In English law, the trust's third-party and bankruptcy effects contribute significantly to its wide use in commercial transactions. In view of the trust's attractiveness in conducting commercial dealings, China has also introduced the trust model into its domestic legal system to enhance its financial infrastructure. However, given the extent to which Chinese law has been influenced by the Roman-Germanic tradition, China's replication of the trust's third-party and bankruptcy effects has encountered doctrinal obstacles. Drawing upon the experience of its Northeast Asian forerunners, China has established two mechanisms to achieve the third-party and bankruptcy effects: the regime of trust fund independence and the granting of the right of rescission to beneficiaries. These two mechanisms represent the adjustments made by Chinese legislators in the process of transplanting the trust model into the Chinese legal context. Adopting a comparative law perspective, this article examines these mechanisms in the Chinese law setting for two reasons: first, to explore the mechanisms’ constituent elements and their operation, as well as the roles of both mechanisms in the Chinese trust law system; and second, to furnish comparative law scholarship with broader insights into rule transplantation and reconciliation.

Diet quality has been associated with mental health, and recently, there has been growing interest in the association between the sustainability of diets and human health. The objective of this cross-sectional study was to explore the relationship between a newly developed dietary index for health and sustainability and psychological disorders among Iranian women. Participants in this cross-sectional study included 479 women living in Tehran with no history of chronic disease. A validated 168-item FFQ was used to assess dietary intake. The World Index for Sustainability and Health was calculated, consisting of four sub-scores: less healthy, healthy, low environmental impact and high environmental impact. Participants’ psychological status was assessed using the Depression Anxiety Stress Scale-21. Logistic regression models were used to examine the association between the World Index for Sustainability and Health and psychological disorders. Participant ages ranged from 20 to 50 years, with a mean age of 31·86 (sd 7·68) years. After adjusting for potential confounders (age, energy, BMI, marital status, education, family history of chronic disease, body satisfaction, socio-economic status, physical activity, smoking), women in the highest tertile of the healthy sub-score had significantly lower odds of experiencing depression (OR 0·40; 95 % CI 0·24, 0·67), anxiety (OR 0·45; 95 % CI 0·23, 0·87) and psychological distress (OR 0·46; 95 % CI 0·28, 0·77) compared with the reference group. Similarly, the less healthy sub-score was significantly associated with depression (OR 0·51; 95 % CI 0·32, 0·89), anxiety (OR 0·44; 95 % CI 0·25, 0·78) and psychological distress (OR 0·57; 95 % CI 0·36, 0·90). An inverse association was observed between the low environmental impact sub-score and depression (OR 0·32; 95 % CI 0·19, 0·54), anxiety (OR 0·38; 95 % CI 0·18, 0·76) and psychological distress (OR 0·30; 95 % CI 0·17, 0·51). However, no further significant associations were found with the high environmental impact sub-score, except with depression (OR 0·57; 95 % CI 0·33, 0·96). The healthy and low environmental impact sub-scores of the World Index for Sustainability and Health were found to be inversely associated with depression, anxiety and psychological distress. However, due to the cross-sectional study design, causality cannot be inferred. Further prospective studies are required to validate and expand upon these findings and explore potential mechanisms and alternative explanations, such as reverse causation. While this study suggests that choosing a diet that is both healthy for individuals and sustainable for the environment may be associated with a lower risk of mental health issues among women, more research is needed.

Geopolitical competition between the United States and China has led to an increased reliance on economic statecraft. In this context, understanding the conditions that trigger trade, aid, or investment weaponization becomes crucial. This article examines how the United States has employed economic statecraft in response to Latin American countries’ engagement with China. The study revisits the theoretical debate on positive and negative economic statecraft and proposes a mechanism that identifies the conditions under which “carrots” or “sticks” are more likely to be employed. We argue that the US response towards Latin American countries’ engagement with China tends to prioritize economic engagement over economic coercion, particularly when dealing with countries that are politically and economically aligned with Washington policies. To test our argument, we adopt a mixed-methods approach. First, we conduct a case study analysis on the United States-Panama relationship. Second, we perform a statistical analysis to assess the impact of economic engagement with China on the allocation of American foreign assistance in the region.

This study exploits the correlation between Yellow River flooding and human capital accumulation using county-level data from Anhui, Hebei, Henan, Jiangsu, and Shandong provinces in China. Employing a spatial regression discontinuity approach, we compare the differences in human capital accumulation within and beyond the Yellow River floodplain areas (YRFA). Empirical results show human capital accumulation in the YRFA is at least 12.1 percent lower than outside the YRFA. Furthermore, our results demonstrate intergenerational transmission and gender differences in the negative impact of the Yellow River flooding on human capital accumulation. The baseline specifications of this study are not affected by drought and overall natural disasters. This paper documents historical human capital accumulation, clan power, and social trust, through which Yellow River flooding has a long-term impact.

The AMS Golden Valley laboratory is equipped with two accelerator mass spectrometers: the AMS facility from the Budker Institute of Nuclear Physics (BINP) and the Mini Carbon Dating System (MICADAS-28) from Ionplus AG and two graphitization systems: the Automated Graphitization Equipment (AGE-3) from Ionplus AG and the Absorption-catalytic setup (ACS) developed at the Boreskov Institute of Catalysis (BIC). The ACS was designed for graphite preparation from labeled biomedical samples, dissolved organics, and dissolved or gaseous carbon dioxide but has proven to be suitable for the traditional dating of objects no older than 35,000 years. Here we present two series of AMS data for the samples from Glasgow International Radiocarbon Inter-comparison (GIRI), prepared using AGE-3 and ACS, and then measured on MICADAS-28. The mean value of the background F14C was 0.0024 ± 0.0009 and 0.012 ± 0.003 for AGE-3 and ACS, respectively, and both methods gave reproducible results for the OXI.

The effect of filtering face piece grade 2 (FFP2) masks for infection prevention is essential in health care systems; however, it depends on supply chains. Efficient methods to reprocess FFP2 masks may be needed in disasters. Therefore, different UV-C irradiation schemes for bacterial decontamination of used FFP2 masks were investigated.

Seventy-eight masks were irradiated with UV light for durations between 3 and 120 seconds and subsequently analyzed for the presence of viable bacteria on the inside. Ten masks served as the control group. Irradiation on the inside of the masks reduced bacteria in proportion to the dose, with an almost complete decontamination after 30 seconds. Outside irradiation reduced the quantity of colonies without time-dependent effects. Both sides of irradiation for a cumulated 30 seconds or more showed almost complete decontamination.

Overall, this study suggests that standardized UV irradiation schemes with treatment to both sides might be an efficient and effective method for FFP2 mask decontamination in times of insufficient supplies.

This paper explores the use of inkjet-printing technology for transparent transmitarrays, presenting a viable alternative to traditional copper microwire counterparts. The study focuses on achieving high-gain performance crucial for wireless communication systems, with a particular emphasis on the fifth-generation (5G) millimeter-wave communication. Transparent transmitarrays leverage transparent conducting films and conductive mesh structures, overcoming opacity limitations and seamlessly integrating with urban architecture. In this paper, the inkjet-printing process is detailed for fabricating transmitarray apertures, highlighting the flexibility and precision in depositing nanosilver particles onto a glass substrate. The design intricacies involve optimizing feeding characteristics, determining unit cell structures, and constructing transmitarrays of various sizes. To validate the proposed technique, three different apertures (15 × 15, 20 × 20, and 25 × 25 unit cells) are constructed. The antenna performances are evaluated in terms of reflection coefficients, radiation efficiency, realized gain, and patterns, demonstrating the effectiveness of inkjet-printed transmitarrays. Comparative analysis with copper microwire counterparts is also conducted, validating the inkjet-printing technology for similar gain performance with added advantages of flexibility, compatibility with transparent substrates, and cost-effective manufacturing.

Current escalation of natural disasters, pandemics, and humanitarian crises underscores the pressing need for inclusion of disaster medicine in medical education frameworks. Conventional medical training often lacks adequate focus on the complexities and unique challenges inherent in such emergencies. This discourse advocates for the integration of disaster medicine into medical curricula, highlighting the imperative to prepare health-care professionals for an effective response in challenging environments. These competencies encompass understanding mass casualty management, ethical decision-making amidst resource constraints, and adapting health-care practices to varied emergency contexts. Therefore, we posit that equipping medical students with these specialized skills and knowledge is vital for health-care delivery in the face of global health emergencies.

Stable separation is a crucial condition that must be met in order for combined aircraft to successfully engage in cooperative flight. In order to achieve the desired fast and controlled separation, this paper proposes a novel design for a torque-driven compliant separation mechanism. By taking into account the compliance characteristics of a sinusoidal acceleration function curve, a mechanical model for the separation mechanism is developed. By utilising the Coulomb friction law, an accurate determination of the aerodynamic load distribution under various conditions is achieved. Subsequently, the relationship between the unlocking moment and the aerodynamic load is derived based on these findings. Through the utilisation of the finite element method, a model of the separation mechanism is generated. To ensure the safety and reliability of the compliant separation mechanism, the mechanical properties of the structural materials are thoroughly analysed under the maximum aerodynamic load. Subsequently, the separation mechanism structure is constructed and subjected to testing in order to showcase the compliance characteristics. In addition, this paper conducts a simulation to analyse the impact of flight speed and angle-of-attack on the separation process. By doing so, the optimal conditions for separation are determined. The methods and findings presented in this study have the potential to contribute valuable insights to the design of combined aircraft.

In this paper, a method of planning the expanded S-curve trajectory of robotic manipulators is proposed to minimize the execution time as well as to achieve the smoother trajectory generation in the deceleration stage for point-to-point motions. An asymmetric parameter is added to the piecewise sigmoid function for an improved jerk profile. This asymmetric profile is continuous and infinitely differentiable. Based on this profile, two analytical algorithms are presented. One is applied to determine the suitable time intervals of trajectory satisfying the time optimality under the kinematic constraints, and the other is to determine the asymmetric parameter generating the minimum execution time. Also, the calculation procedure for the time-scaled synchronization for all joints is given to decrease unnecessary loads onto the actuators. The velocity, acceleration, jerk and snap (the derivative of jerk) of the joints and the end-effector are equal to zero at two end points of motion. The simulation results through 3 DOF and 6 DOF robotic manipulators show that our approach reduces the jerk and snap of the deceleration stage effectively while decreasing the total execution time. Also, the analysis for a single DOF mass-spring-damper system indicates that the residual vibration could be reduced to 10% more than the benchmark techniques in case velocity, acceleration and jerk are limited to 1.24 m/s, 6 m/s2 and 80 m/s3, respectively and displacement is set to 0.8m. These results manifest that the performance of reducing residual vibrations is good and demonstrate an important characteristic of the proposed profile suitable for point-to-point motion.