In their 2022 publication in this journal, Suber and colleagues attempt to apply crime mapping to the illicit trade of cultural objects from the Middle East to establish a causal relationship between conflict and heritage looting. The article calls for comments by readers on the methodological approaches and results (p. 559). This commentary addresses the article’s shortcomings, specifically highlighting its inadequate grounding in existing literature, methodological limitations, and problematic data approach.

Due to the scarcity of data, the demographic regime of pre-plague England is poorly understood. In this article, we review the existing literature to estimate the mean age at first marriage for women (at 24) and men (at 27), the remaining life expectancy at first marriage for men (at 25 years), the mean household size (at 5.8), and marital fertility around 1300. Based on these values, we develop a macrosimulation that creates a consistent image of English demography at its medieval population peak that reflects a Western European marriage pattern with a relatively very high share of celibates.

Compliant and safe human–robot interaction is an important requirement in lower limb exoskeleton design. Motivated by this need, this paper presents the design of a compatible lower limb exoskeleton with variable stiffness actuation and anthropomorphic joint mechanisms, for walking assistance and gait rehabilitation. A novel variable stiffness actuator (VSA) based on a guide-bar mechanism was designed, to provide force and impedance controllability. By changing the crank length of the mechanism, the stiffness of the actuator is adjusted in a wide range (from 0 to 1301 Nm/rad), at fast speed (about 2582 Nm/rad/s), and with low-energy cost. These features make it possible for online stiffness adjustment during one gait cycle, to change the human–robot coupling behavior and improve the performance of the exoskeleton. An anthropomorphic hip joint mechanism was designed based on a parallelogram linkage and a passive joint compensation approach, which absorbs misalignment and improves kinematic compatibility between the human and the exoskeleton joint. Furthermore, a torque control-based multimode control strategy, which consists of passive mode, active mode, and hybrid mode, was developed for different disease stages. Finally, the torque control performance of the actuator was verified by benchtop test, and experimental validations of the exoskeleton with a human subject were carried out, which demonstrate that compliant human–robot interaction was achieved, and stiffness variation benefits for control performance improvement when the control mode changes.

Xiao-Ping's invitation brings back many wonderful memories associated with the MOR community since its inception, so I am grateful to have this occasion to share these memories with you. My relationship with MOR is connected through a number of colleagues and friends and a series of events.

It was all because of Anne Tsui's vision, leadership, and never-exhausted energy that nurtured MOR to be born out of a scholarly scratch. I happened to be within proximity to lend her a helpful hand.

There is interest in exploring biodegradable chemicals, e.g. sex pheromones, in behaviour manipulation to control the polyphagous mirid species Helopeltis bakeri Poppius. Understanding this insect pest’s reproductive behaviour is critical for identifying and isolating semiochemicals. H. bakeri rate of sexual maturation was determined by identifying the time the winged adult changed colour after the 5th and final nymphal form. We verified that there was no significant difference in the rate of colour change for both sexes. Copulation lasted an average of 167.0 ± 77.1 min and was observed on mating pairs >72 h old from the time of final molt. Close-range copulation behaviour of H. bakeri was recorded using the Behavioral Observation Research Interactive Software, and sequential behaviour analysis was performed by creating adjacency matrices. The ethograms revealed the absence of specific calling behaviour from either of the sexes. However, the male’s active pursuit of the female may indicate the latter’s role in releasing sex attractants. Using a wind tunnel, it was observed that the number of male visitations of 96-h to 120-h-old females significantly differed from the attraction in younger females (p < 0.05) and peaked from 2:00 PM to 12:00 AM. This supports the crepuscular nature of this mirid species. The difference in the sex maturation age and maximum male attraction implies that the secretion of sex attractant could happen after the completion of development, i.e. the exhibition of colour dimorphism.

To begin with, I wish to thank Editor-in-Chief Xiao-Ping Chen for her initiative to celebrate MOR's twentieth anniversary by inviting a series of essays under the seductive title ‘MOR and Me’, with the overarching subtitle ‘Chinese management research: Looking back, current status, and future prospects’.

Vascular rings represent a heterogeneous set of aberrant great vessel anatomic configurations which can cause respiratory symptoms or dysphagia due to tracheal or oesophageal compression. These symptoms can be subtle and may present at varied ages. More recently, many have been identified in patients without symptoms, including fetal echocardiogram, resulting in a conundrum for practitioners when attempting to determine who will benefit from surgical correction. Here, we provide a review of vascular rings and a guide to the practitioner on when to consider additional imaging or referral. Additionally, we discuss the changing landscape regarding asymptomatic patients and fetal echocardiogram.

This article argues that Hume’s epistemology changes in an important respect between the Treatise and the Enquiry: the degree to which these epistemologies are practical epistemologies. This article focuses on one particular aspect of this latter comparison, that is, Hume’s responses to skepticism in the Treatise and Enquiry. It argues that the Enquiry’s response to skepticism offers a practical epistemology that teaches us, in relatively concrete terms, how we can be wise. By contrast, the Treatise’s response to skepticism does not seem to share this aim, or at least realizes it to a diminished extent compared with its later counterpart.

This article critically engages with ‘apolitical warriors’ as a conceptual tool for understanding how Gurkhas and their families are discursively embedded in political discourses. The analysis offered will shed light on the limited scholarly attention given to the implications of this soldiering community's ‘impartial’ and ‘martial’ identity in shaping ideas of (non-)belonging within Southeast Asia. By focusing on remembrances, this article draws out how a nation's past is produced vis-à-vis commemorative events and, within this context, it comparatively examines how Gurkhas, as military migrants, are remembered and represented during ceremonies held at, for example, the Gurkha Cemetery in Ipoh, Malaysia and the Kranji War Cemetery in Singapore. A central question involves evaluating the role of historical memory in informing the extent to which the Gurkha community is incorporated within the national narratives of countries such as Singapore, Malaysia, and Brunei. Herein, I argue that their perceived apolitical tenor has long served a dual purpose which, in turn, forms the axis of their ambivalent belonging. While Gurkhas are celebrated as foreign warriors reputed for their invaluable contribution to these nations, they are excluded through policy measures that rule out the prospect of citizenship and govern their status as transient migrants.