In this work, we propose a novel approach for tomato pollination that utilizes visual servo control. The objective is to meet the growing demand for automated robotic pollinators to overcome the decline in bee populations. Our approach focuses on addressing this challenge by leveraging visual servo control to guide the pollination process. The proposed method leverages deep learning to estimate the orientations and depth of detected flower, incorporating CAD-based synthetic images to ensure dataset diversity. By utilizing a 3D camera, the system accurately estimates flower depth information for visual servoing. The robustness of the approach is validated through experiments conducted in a laboratory environment with a 3D printed tomato flower plant. The results demonstrate a high detection rate, with a mean average precision of 91.2 %. Furthermore, the average depth error for accurately localizing the pollination target is impressively minimal, measuring only 1.1 cm. This research presents a promising solution for tomato pollination, showcasing the effectiveness of visual-guided servo control and its potential to address the challenges posed by diminishing bee populations in greenhouses.

We study a maximal average along a family of curves $\{(t,m(x_1)\gamma(t)):t\in [-r,r]\}$, where $\gamma|_{[0,\infty)}$ is a convex function and m is a measurable function. Under the assumption of the doubling property of $\gamma'$ and $1\leqslant m(x_1)\leqslant 2$, we prove the $L^p(\mathbb{R}^2)$ boundedness of the maximal average. As a corollary, we obtain the pointwise convergence of the average in r > 0 without any size assumption for a measurable m.

This paper presents a pattern reconfigurable antenna that accomplishes wideband and multibeam characteristics. The antenna design comprises a cross-slot radiator as the primary element and reconfigurable partially reflecting surface (PRS) layer placed above and below the cross-slot radiator. This configuration allows the antenna to adapt its radiation patterns effectively. The choice of the cross-slot radiator is based on its capability to offer wideband characteristics. The PRS layer consists of a precisely arranged array of 4×4 unit cells, incorporating PIN diodes into both the upper and lower PRS layers. The direction of radiation pattern can be changed by altering operating states of the PIN diodes on the PRS layer. The antenna operates in three distinct states, each exhibiting a unique radiation pattern. The antenna produces broadside, backward, and bidirectional radiation patterns. It demonstrates effective pattern reconfigurability across the frequency range of 3.10–3.86 GHz (21.71%), with a peak gain of 9.60 dBi. The simulated and measured results of the antenna are found to be in good agreement.

This paper establishes an extreme $C^k$ reducibility theorem of quasi-periodic $SL(2, \mathbb {R})$ cocycles in the local perturbative region, revealing both the essence of Eliasson [Floquet solutions for the 1-dimensional quasi-periodic Schrödinger equation. Comm. Math. Phys. 146 (1992), 447–482], and Hou and You [Almost reducibility and non-perturbative reducibility of quasi-periodic linear systems. Invent. Math. 190 (2012), 209–260] in respectively the non-resonant and resonant cases. By paralleling further the reducibility process with the almost reducibility, we are able to acquire the least initial regularity as well as the least loss of regularity for the whole Kolmogorov–Arnold–Moser (KAM) iterations. This, in return, makes various spectral applications of quasi-periodic Schrödinger operators wide open.

When archaeologists discuss ‘ancestor cults’ or ‘ancestor veneration’, what this might entail in practice usually remains vague, leading to charges that the concept of ‘ancestors’ is often applied generically. In this article, the authors combine bioarchaeological, taphonomic, radiocarbon, and isotopic studies to explore the ritual practice of the selective retention, curation, and deposition of a group of human crania and mandibles. Between 5500–5400 bc, Neolithic people at Masseria Candelaro (Puglia, Italy) deposited broken crania and mandibles from about fifteen individuals in a heap in the centre of the village. These individuals were mostly probable males, collected over the course of two centuries and actively used, with their deposition marking the final disposal of a ritual collection. The motivations for the curation of cranial bone are investigated through comparison with archaeological and ethnographic examples, advancing an interpretation of ritual practice directed towards ancestors.

This article examines the alignment of bilateral investment treaties (BITs) with domestic development policies. The analysis reveals the presence of considerable disparity between Ethiopian BITs and the country's domestic development policies and the importance of ensuring consistency between the two. The potential options to resolve this disparity can be combined on a case-by-case basis, depending on different challenges, such as bargaining power, political commitment, procedural requirements and resistance from other treaty partners. The changing dynamics of global politics and the growing backlash against BITs have created a conducive environment for such reform.

In the employment context, non-competes are contractual terms which provide that once the employment ends the employee cannot work for another employer in the same industry or field (i.e. a competitor), within a specified geographic area, for a specified time. The existing law and practice regarding non-competes in Australia is plagued with confusion and uncertainty. Non-competes also have adverse economic consequences; they are associated with reduced employee mobility and consequent negative impacts on wages and productivity.

The use of non-competes by Australian business has increased over the past 5 years and absent a policy response; this trend is likely to continue. Non-competes are no longer limited to highly paid executives but now apply to about one in five Australian workers, across income, age, occupational, and education groups.

The distribution and prevalence of non-competes in Australia are broadly consistent with data in other developed economies. A number of jurisdictions within the Organisation for Economics Co-operation and Development have imposed restrictions on the use of non-competes. The US Federal Trade Commission is considering a ban on their use and, in the UK, the government has announced its intention to limit the term of non-competes to 3 months. In Australia, the Competition Minister has recently asked the Australian Competition and Consumer Commission and Treasury for advice on the competitive aspect of non-competes. The Australian Government released an Issues Paper (https://treasury.gov.au/sites/default/files/2024-04/c2024-514668-issues-paper.pdf#page40) – ‘Non-competes and other restraints: understanding the impacts on jobs, business and productivity’ in April 2024. The Issues Paper outlines the existing research and evidence in Australia and overseas on the use and effects of non-competes. A public consultation process will conclude in May 2024 and Treasury will advise the Government on the outcomes of the consultations by the end of 2024.

After reviewing the arguments for and against restricting the ‘reach’ of non-competes, I conclude that the weight of the evidence favours a regulatory response to ameliorate the unfairness inherent in the existing law and practice. A number of possible regulatory responses are considered.

In China, both governments and civil institutions play important roles in non-profit regulation. However, with various regulatory instruments available, it remains unclear which has the strongest public support and most effectively promotes civic engagement. This study compared the impact of different non-profit regulatory instruments addressing information disclosure on two aspects of civic engagement intention: willingness to donate and willingness to volunteer. A survey experiment was conducted to analyse the perspectives of 939 Chinese participants on four types of regulation: no regulation, civil regulation, accommodative government regulation and deterrent government regulation. Results showed that regulation was preferred to no regulation and deterrent government regulation was preferred to accommodative government regulation, which was preferred to civil regulation. Additionally, public trust in non-profits significantly mediated the relationship between regulation and civic engagement intention. These findings suggest that government regulation, particularly the deterrent approach, garners strong public support and may be prioritized within the Chinese context.

With the emerging developments in millimeter-wave/5G technologies, the potential for wireless Internet of things devices to achieve widespread sensing, precise localization, and high data-rate communication systems becomes increasingly viable. The surge in interest surrounding virtual reality (VR) and augmented reality (AR) technologies is attributed to the vast array of applications they enable, ranging from surgical training to motion capture and daily interactions in VR spaces. To further elevate the user experience, and real-time and accurate orientation detection of the user, the authors proposes the utilization of a frequency-modulated continuous-wave (FMCW) radar system coupled with an ultra-low-power, sticker-like millimeter-wave identification (mmID). The mmID features four backscattering elements, multiplexed in amplitude, frequency, and spatial domains. This design utilizes the training of a supervised learning classification convolutional neural network, enabling accurate real-time three-axis orientation detection of the user. The proposed orientation detection system exhibits exceptional performance, achieving a noteworthy accuracy of 90.58% over three axes at a distance of 8 m. This high accuracy underscores the precision of the orientation detection system, particularly tailored for medium-range VR/AR applications. The integration of the FMCW-based mmID system with machine learning proves to be a promising advancement, contributing to the seamless and immersive interaction within virtual and augmented environments.

Rebel Angel Theodicy – often called Satan Theodicy – is the thesis that horrendous evils are directly or indirectly caused by angels who disobeyed God. In this article, I defend it, developing Gary Emberger’s suggestion that they influenced the course of evolution. After defending speculative theodicy, I expound Rebel Angel Theodicy and reply to seven objections that explicate the widespread judgement of implausibility:

1. 1. That the existence of angels is metaphysically problematic.

2. 2. That God has no good reason to create angels.

3. 3. That angels have no power to harm human beings.

4. 4. That God, foreknowing the possibility of rebellion, would not delegate to angels the power to guide evolution.

5. 5. That even if there was a good reason for God to delegate this power to angels it is metaphysically impossible for an omnipotent God to do so.

6. 6. That God, knowing of the angels’ rebellion, would subsequently intervene to put evolution back onto the preferred divine plan.

7. 7. That there is no plausible motive for angels to rebel.