The Royal College of Psychiatry journals have an outstanding reputation for excellence, integrity and impact in psychiatry. Facilitated by Cambridge University Press, which is equally steeped in tradition, the family of College journals remains committed to enriching our understanding of mental science and exploring the clinical issues that matter.

We show that certain sums of partition numbers are divisible by multiples of 2 and 3. For example, if $p(n)$ denotes the number of unrestricted partitions of a positive integer n (and $p(0)=1$, $p(n)=0$ for $n<0$), then for all nonnegative integers m,

$$ \begin{align*}\sum_{k=0}^\infty p(24m+23-\omega(-2k))+\sum_{k=1}^\infty p(24m+23-\omega(2k))\equiv 0~ (\text{mod}~144),\end{align*} $$

where $\omega (k)=k(3k+1)/2$.

The intricate water-land intermingled nature of wild environments necessitates robots to exhibit multimodal cross-domain mobility capabilities. This paper introduces a novel wheel-spoke-paddle hybrid amphibious robot (WSP-bot) that can operate on flat and rough terrains, water surfaces, and water-land transitional zones. The proposed robot relies on a propulsion mechanism called transformable wheel-spoke-paddle (WSP), which combines the stability of wheeled robots with the obstacle-climbing capability of legged robots, while also providing additional aquatic mobility. The utilization of a crank-slider-based transformation mechanism enables seamless switching between multiple motion modes. An analysis of mode transition and ground motion in spoke mode was conducted, along with an investigation of its obstacle-crossing capability. Simulations were performed for mode transition, ground locomotion, and obstacle-crossing, as well as propulsion of a single WSP module on water. Based on the above work, a prototype robot was manufactured. Prototype tests, including mode transition and mobility tests on land and water surfaces under multimodal states, confirmed the effectiveness of the proposed WSP-bot.

Conditioning of a metal surface in a high-voltage system is the progressive development of resistance to vacuum arcing over the operational life of the system. This is relevant for accelerator cavities, where high level of performance is only achievable after a long conditioning period. Beyond the accelerator research field, this is an important topic for any technology where breakdowns can cause device failure, either by directly disrupting device operation or by causing cumulative hardware damage.

We are developing a direct method to measure the surface resistivity of a metal surface that is being conditioned with a HV DC system by inducing a high frequency (GHz) radio-frequency current in the parallel-plate electrode system. If the system can function as a resonant cavity, the surface resistivity data would be encoded in its quality factor (Q-factor). The changes in the resistivity measured in cryogenic conditions would indicate a formation of dislocations under the surface, something that has been speculated as an important process behind the conditioning.

In this paper, we present two modified designs of the electrode system, which will act as a resonant cavity, the results of 3D EM simulations and experimental results regarding the characterization of this resonant system.

Since at least the colonial era, the Central African Republic (CAR) has been a hotbed of rural rebellion and protest. This article explores the political discourses of members of the Anti-Balaka, a diffuse protest movement and armed rebellion, comparing discourses to see how they vary in relation to demographic categories: urban and rural, elites and peasants. Lombard and Vlavonou find that rural peasants demand a moral economy of interpersonal respect, while elite (usually urban) adherents claim inclusion in a system of official recognition and patronage. Both are concerned with respect, but what is radical about the vision of the peasants is that they can enact it on their own.

We examine cultural and ideological barriers to gender equality in a young democracy, Indonesia, where women’s political representation has increased slowly since democratization, but where survey results point to declining support for women’s political leadership. In both country and comparative literature, the effect of ideological factors—including religion—on voter support for women candidates is contested. Using results of a nationally representative survey, we group respondents according to a “political patriarchy” index. We find that being a Muslim is a strong predictor of holding patriarchal attitudes; university education is associated with gender-egalitarian views. Patriarchal views, in turn, are associated with opposition to increasing Indonesia’s gender quota and with lower levels of self-reported voting for female candidates. Our findings suggest that patriarchal attitudes drive both policy preferences and voter behavior. We conclude that Indonesia’s recent conservative Islamic turn likely underpins widespread—and increasing—opposition to gender equality in politics.

We prove existence and unicity of slope-stable vector bundles on a general polarized hyperkähler (HK) variety of type $K3^{[n]}$ with certain discrete invariants, provided the rank and the first two Chern classes of the vector bundle satisfy certain equalities. The latter hypotheses at first glance appear to be quite restrictive, but, in fact, we might have listed almost all slope-stable rigid projectively hyperholomorphic vector bundles on polarized HK varieties of type $K3^{[n]}$ with $20$ moduli.