Recent studies highlight the potential of large language models (LLMs) in citation screening for systematic reviews; however, the efficiency of individual LLMs for this application remains unclear. This study aimed to compare accuracy, time-related efficiency, cost, and consistency across four LLMs—GPT-4o, Gemini 1.5 Pro, Claude 3.5 Sonnet, and Llama 3.3 70B—for literature screening tasks. The models screened for clinical questions from the Japanese Clinical Practice Guidelines for the Management of Sepsis and Septic Shock 2024. Sensitivity and specificity were calculated for each model based on conventional citation screening results for qualitative assessment. We also recorded the time and cost of screening and assessed consistency to verify reproducibility. A post hoc analysis explored whether integrating outputs from multiple models could enhance screening accuracy. GPT-4o and Llama 3.3 70B achieved high specificity but lower sensitivity, while Gemini 1.5 Pro and Claude 3.5 Sonnet exhibited higher sensitivity at the cost of lower specificity. Citation screening times and costs varied, with GPT-4o being the fastest and Llama 3.3 70B the most cost-effective. Consistency was comparable among the models. An ensemble approach combining model outputs improved sensitivity but increased the number of false positives, requiring additional review effort. Each model demonstrated distinct strengths, effectively streamlining citation screening by saving time and reducing workload. However, reviewing false positives remains a challenge. Combining models may enhance sensitivity, indicating the potential of LLMs to optimize systematic review workflows.

On 27 June 2017, in the Stichting Mothers of Srebrenica case, The Hague Court of Appeal applied the effective control test in determining attribution and found that the Netherlands was responsible for the failure of the Dutch battalion (Dutchbat) acting as a part of the UN Protection Force (UNPROFOR) to protect civilians from the Srebrenica massacre in 1995. This judgment is of considerable significance because the court renounced the preventive approach to the effective control test, to which the Dutch courts had repeatedly declared their adherence, and reverted to the traditional (presumptive) approach. The preventive interpretation was originally proposed with a view to justifying much broader attribution to troop-contributing nations (TCNs). However, quite interestingly, the Court of Appeal reached the conclusion that the Dutchbat’s conduct was attributable to the Netherlands without recourse to the preventive approach. The present study argues that the legal framework for the attribution of UN peacekeepers’ conduct has developed in such a manner that the fair allocation of responsibility and the effectiveness of UN peacekeeping operations are in equilibrium. In that sense, the effective control test should be located at the interface between the law of international responsibility and the law of international organizations. It is illustrated that not only does the preventive interpretation fail to strike a fair balance between the institutional considerations and the need to provide remedies for victims of peacekeepers’ misconduct, but also the presumptive approach may lead to effective remedies while having due regard for the institutional considerations.

Low-cost, compact, and accurate systems for in-home rehabilitation are needed in aging, aged, and hyper-aged groups. In this study, we developed an in-home rehabilitation system for patients with balance disorders by providing visual feedback of postural information in real-time. Our system measures the user's whole body motion and the center of pressure (COP) using a Kinect and Wii Balance Board (WBB). The accuracy of body motion for estimating the anterior folding and lateral bending angles was validated experimentally by comparing the estimates with the angles given by an optical motion capture system. Additional experiments showed that the COP has a small correlation coefficient with the angles, suggesting that WBB is necessary for measuring the COP.