Magnet Acceptance and Allocation at the LHC Magnet Evaluation Board

The normal and superconducting magnets for the LHC ring have been carefully examined to insure that each of about 1900 assemblies is suitable for the operation in the accelerator. Hardware experts and accelerator physicists have contributed to this work that consisted in magnet acceptance, and sorting according to geometry, field quality and quench level. This paper gives a description of the magnet approval mechanism that has been running since four years, reporting in a concise summary the main results achieved

The management of acute venous thromboembolism in clinical practice. Results from the European PREFER in VTE Registry

Venous thromboembolism (VTE) is a significant cause of morbidity and mortality in Europe. Data from real-world registries are necessary, as clinical trials do not represent the full spectrum of VTE patients seen in clinical practice. We aimed to document the epidemiology, management and outcomes of VTE using data from a large, observational database. PREFER in VTE was an international, non-interventional disease registry conducted between January 2013 and July 2015 in primary and secondary care across seven European countries. Consecutive patients with acute VTE were documented and followed up over 12 months. PREFER in VTE included 3,455 patients with a mean age of 60.8 ± 17.0 years. Overall, 53.0 % were male. The majority of patients were assessed in the hospital setting as inpatients or outpatients (78.5 %). The diagnosis was deep-vein thrombosis (DVT) in 59.5 % and pulmonary embolism (PE) in 40.5 %. The most common comorbidities were the various types of cardiovascular disease (excluding hypertension; 45.5 %), hypertension (42.3 %) and dyslipidaemia (21.1 %). Following the index VTE, a large proportion of patients received initial therapy with heparin (73.2 %), almost half received a vitamin K antagonist (48.7 %) and nearly a quarter received a DOAC (24.5 %). Almost a quarter of all presentations were for recurrent VTE, with >80 % of previous episodes having occurred more than 12 months prior to baseline. In conclusion, PREFER in VTE has provided contemporary insights into VTE patients and their real-world management, including their baseline characteristics, risk factors, disease history, symptoms and signs, initial therapy and outcomes

Impact of Dynamic Magnetic fields on the CLIC Main Beam

The Compact Linear Collider (CLIC) accelerator has strong precision requirements on the position of the beam. The beam position will be sensitive to external dynamic magnetic fields (stray fields) in the nanotesla regime. The impact of these fields on the CLIC main beam has been studied by performing simulations on the lattices and tolerances have been determined. Several mitigation techniques will be discussed

Research on the Correlation between Nature of Property Rights, Quality of Accounting Information and Corporate Investment Efficiency

企业的投资活动是企业诞生的起点，更是企业继续存在与发展壮大的基础。自从MM理论提出以后，众多学者开始试图解释公司特征等因素对企业投资行为、投资效率的影响，其中以信息不对称理论以及代理理论的影响最为广泛。在这两个经典理论的基础上，学者解释了企业非效率投资行为产生的原因，并继续深入探讨提高企业投资效率的各种机制。本文以会计信息系统产生的会计信息为出发点，分别从企业投资资金来源和对投资项目识别这两个角度，分析了会计信息作为公司治理的一种有效机制，通过降低信息不对称水平、缓解企业中的代理冲突，进而提高企业投资效率的具体作用机制。另外，我国企业的投资活动处于新兴加转轨的制度环境中，特殊的制度环境因素，如...Investment behavior is the starting point of corporates, and also the leverage of corporates’ existence and development. MM model brought forward by Modigliani and Miller （1958） has initiated study on the decision of corporates’ investment and financing. Hereafter, many scholars have put forward the theory about which factors influence corporate investment behavior and investment efficiency. Asymm...学位：管理学硕士院系专业：管理学院会计系_会计学学号：1752010115117