Central nervous system (CNS) vasculitis encompasses a broad range of diseases characterized by inflammation of blood vessels within the brain, spinal cord, and meninges. This review focuses on Primary Angiitis of the CNS (PACNS), a unique form affecting only the CNS without other organ involvement. PACNS primarily affects the small- and medium-sized arteries in the brain, leading to neurological symptoms. Early recognition and intervention are essential for optimal management. This case report of a 25-year-old male highlights the diagnostic challenges, where a multidisciplinary approach was necessary to diagnose PACNS, given initial negative results. The paper also explores the etiology and pathogenesis of PACNS and discusses the diagnostic criteria proposed by researchers. Medical professionals primarily base management strategies on induction and maintenance therapies, utilizing a combination of glucocorticoids and immunosuppressants as the standard treatment. However, the exact dosages and administration methods need further research due to the absence of randomized clinical trials. The review underscores the need for continued research to enhance diagnostic and treatment protocols, given the severity of PACNS.
A dark matter mechanism within the framework of the standard model (SM) of particle physics is proposed in this article that the essence of dark matter may be the excited virtual particle field by the gravitational field of ordinary matter, which contains virtual photons, virtual positive and negative electron pairs, virtual gluons, virtual positive and negative quark pairs, virtual neutrinos etc. In this mechanism, there are two basic assumptions: 1) the stronger the gravitational field of ordinary matter, the greater the excited energy (mass) density of virtual particle field;2) The excited virtual particle field is generally very weak in self-interaction. The virtual particle field excited by gravity can exhibit the properties of dark matter and may become a dark matter candidate. Based on this new dark matter mechanism, the hydrodynamic equations and cosmic perturbation equations describing cosmic matter are improved, and this may be meaningful for solving the challenges faced by the standard cosmological model (Lambda-CDM or LCDM) and developing and perfecting LCDM model.
功能语篇分析(Functional Discourse Analysis)以韩礼德的系统功能语法(Systemic Functional Grammar)为基础,广泛地应用于诗歌翻译研究。从系统功能语法三大元功能(即概念功能、人际功能和语篇功能)以及语域理论入手,分析美国女诗人艾米莉·狄金森的“I Never Saw a Moor”一诗,并探究周建新和江枫两种汉译文与原文的“元功能对等”情况。分析表明,功能语篇分析应用于分析诗歌及其译文,可以为狄金森诗歌翻译研究提供一个较为客观的视角,并得出结论:周建新的译文贴切、自然,反映原文风貌,更注重“译味”;江枫的译文简洁、流畅,传递原文语义,基本实现“译意”。
The sight of an octogenarian sitting at the entrance of a centuries-old structure,skilfully crafting lanterns,creates a captivating and distinctive scene in the Potan Ancient Town,nestled within Xianju County,Zhejiang Province.With a history spanning over 1,000 years,this town is quietly hidden from the majority of visitors who are unaware of its presence.Even fewer still are acquainted with its exceptional tradition of lantern making.
The revolution of physical structure is highly significant for future software defined vehicles(SDV).Active structural transformation is a promising feature of the next generation of vehicle physical structure.It can enhance the dynamic performance of vehicles,thus providing safer and more comfortable ride experiences,such as the ability to avoid rollover in critical situations.Based on the active structural transformation technology,this study proposes a novel approach to improve the dynamic performance of a vehicle.The first analytical motion model of a vehicle with active structural transformation capability is established.Then,a multi-objective optimization problem with the adjustable parameters as design variables is abstracted and solved with an innovative scenario specific optimization method.Simulation results under different driving scenarios revealed that the active transformable vehicle applying the proposed method could significantly improve the handling stability without sacrificing the ride comfort,compared with a conventional vehicle with a fixed structure.The proposed method pipeline is defined by the software and supported by the hardware.It fully embodies the characteristics of SDV,and inspires the improvement of multiple types of vehicle performance based on the concept of“being defined by software”and the revolution of the physical structure.
In some small parts of Antarctica,you can lay a sandwich down on the ground and return to it a month later,and it will be fine to eat.The McMurdo Dry Valleys of Antarctica are perhaps the driest places on Earth;protected by mountains,they see virtually no precipitation,ever.
