Prevention and protection against cerebral ischemic injury using acupuncture

Cardiovascular disease is the leading cause of death worldwide.Stroke is the second leading cause of death above the age of 60 years and the leading cause of acquired disability in adults.The main type of stroke is ischemic stroke（80%）and it is subclassified as thrombotic or embolic in nature.

Overview on Mangrove Forest Disaster Prevention and Mitigation Functions

This paper provides a comprehensive overview on coastal protection and hazard mitigation by mangroves.Previous stud-ies have made great strides to understand the mechanisms and influencing factors of mangroves’protection function,including wave energy dissipation,storm surge damping,tsunami mitigation,adjustment to sea level rise and wind speed reduction,which are sys-tematically summarized in this study.Moreover,the study analyzes the extensive physical models,based on indoor flume experi-ments and numerical models,that consider the interaction between mangroves and hydrodynamics,to help our understanding of mangrove-hydrodynamic interactions.Additionally,quantitative approaches for valuing coastal protection services provided by man-groves,including index-based and process-resolving approaches,are introduced in detail.Finally,we point out the limitations of previous studies,indicating that efforts are still required for obtaining more long-term field observations during extreme weather events,to create more real mangrove models for physical experiments,and to develop numerical models that consider the flexible properties of mangroves to better predict wave propagation in mangroves having complex morphology and structures.

Addressing mucosal ulcers during orthodontic treatment:An urgent call for preventive strategies

Mucosal ulcers are a common yet often overlooked complication during orthodontic treatment,significantly impacting patient comfort and compliance.This letter aims to highlight the prevalence,potential causes,and management strategies for mucosal ulcers in orthodontic patients.By reviewing recent literature and clinical observations,we underscore the necessity for proactive measures and tailored interventions to mitigate the incidence and severity of these lesions.Emphasizing the role of patient education and the use of protective devices,we call for a multidisciplinary approach to enhance patient care and treatment outcomes.This discussion is particularly relevant in the context of evolving orthodontic techniques and materials,which necessitate continuous adaptation of clinical practices to ensure patient safety and well-being.

Regional Coordinated Development and Joint Prevention and Control for Environmental Protection in China in the New Era

The three important historical development stages of China from"standing up","getting rich"to"becoming strong"were analyzed deeply.Regional coordinated development policies and strategies have also gone through the"enlightenment stage","development stage"and"mature stage".On this basis,the problems of the coordination of China s regional coordinated development and joint prevention and control for environmental protection in the new era,as well as suggestions for the next step were further analyzed.

Research on the Prevention Methodologies and Environmental Protection Countermeasures for Oil Pollution based on Latest Techniques from China and Abroad

In this paper, we conduct research on the prevention methodologies and environmental protection countermeasures for oil pollution based on latest techniques from China and abroad. Petroleum and petrochemical industry will also be able to have serious water pollution. Against oil pollution increasingly serious phenomenon, about how to control oil pollution has also carried on the thorough research and accumulated in the process of specific management experiences and lessons. We conduct theoretical analysis between the state-of-the-art methods of environmental protection countermeasures with examples, We firmly believe that more advances will occur in the future.

Discussion on the Prevention and Control Countermeasures of Sudden Disasters on Protected Vegetable in Hebei Province

Protected vegetable production made the traditional agriculture gradually get rid of the shackles of nature, broke the seasonal traditional agriculture and realized the anti season list of agricultural products. While protected vegetables often encountered sudden disasters in production and were restricted with the conditions of low temperature and weak light. Aimed at the sudden disasters of protected vegetable production in Hebei Province,the countermeasures for disaster prevention and control were put forward from the aspects of variety selection, seedling treatment technology,grafting technique,cultivation and management,flower and fruit retention technology,application of exogenous substance,rational fertilization,transgenic technology and so on,in order to reduce production risks and cut loss,realize that protected vegetable production is safe,good-quality and efficient.

Validating the CorrectWearing of Protection Mask by Taking a Selfie:Design of a Mobile Application“CheckYourMask”to Limit the Spread of COVID-19

In a context of a virus that is transmissive by sputtering,wearing masks appear necessary to protect the wearer and to limit the propagation of the disease.Currently,we are facing the 2019-2020 coronavirus pandemic.Coronavirus disease 2019(COVID-19)is an infectious disease with first symptoms similar to the flu.The symptom of COVID-19 was reported first in China and very quickly spreads to the rest of the world.The COVID-19 contagiousness is known to be high by comparison with the flu.In this paper,we propose a design of a mobile application for permitting everyone having a smartphone and being able to take a picture to verify that his/her protection mask is correctly positioned on his/her face.Such application can be particularly useful for people using face protection mask for the first time and notably for children and old people.The designed method exploits Haar-like feature descriptors to detect key features of the face and a decision-making algorithm is applied.Experimental results show the potential of this method in the validation of the correct mask wearing.To the best of our knowledge,our work is the only one that currently proposes a mobile application design“CheckYourMask”for validating the correct wearing of protection mask.

Ecological and Environmental Protection Requirements in China s Regional Coordinated Development Strategy in the New Era

Starting from the historical evolution of China s regional coordinated development policy and practice,three stages of"enlightenment stage","development stage"and"maturity stage",as well as the connotation,characteristics and content of implementing regional coordinated development strategy were analyzed.On this basis,from different aspects of industrial distribution,pollutant characteristics and regional environmental protection policy,the existing ecological and environmental protection problems in China s regional coordinated development in the new era were analyzed,and some suggestions for the next step were put forward.It is necessary to follow the"four ones"concept from the overall point of view,implement"three lines and one list"from the perspective of the width of the access red line,strengthen"joint prevention and control"from the perspective of the depth of regional regulation,deepen the"planning environmental impact assessment"from the perspective of the breadth of industrial distribution,and promote the"green-way model"from the perspective of ecological low carbon.

China: International Cooperation in Environmental Protection

The paper deals with China’s involvement in the process of international environmental protection. The cooperation between China and international environmental organizations is analyzed. This article stresses on such issues as China’s cooperation with United Nations Environment Program, Asia-Pacific Economic Cooperation, Association of Southeast Asian Nations, China-Europe and China-Africa Cooperation. The key spheres of China’s activity in international environmental protection are examined in this paper. Thus, Chinese government attaches great importance to environmental protection and believes that environmental protection will have a direct impact on the overall situation of China’s modernization drive and its long-term development. While promoting economic growth, it has adopted a wide range of measures to strengthen environmental protection.

Design of Facial Impact Protection Gear for Cyclists

The concept of facial impact protection mask for cyclists is proposed in response to increased participation in cycling and the need for injury prevention. The research aims to develop an approach for design of facial impact protection gear to reduce the risk of severe injury. Impact test equipment and procedure, face surrogate and protection material performance criteria are developed. Three groups of protective materials – rigid crushable, semi rigid, and soft cushion foams are tested and assessed according to criteria. The criteria are linked to measures of the risk of facial and brain injuries: HIC (Head Injury Criterion), peak deceleration, Face-bone damage and energy absorption. The impact energy is simulated by a drop test using a 48 mm-radius-steel hemispherical impactor, with a weight of 4.63 kg similar to that of headform J specified in AS/NZS standard. The drop-height is 1500 mm, and the linear deceleration force of the impactor is recorded and used to establish the performance of the materials. The HIC is used to predict the risk of brain injury, whereas the developed face surrogate is used to assess facial bone injury. A 5.4 m/s facial impact to the unprotected-face of a cyclist can result in the risk of severe facial bone fracture and mild brain injury. The impact test results for rigid foam protection of 40 mm thickness shows no densification (bottom out) and absorbs the impact energy without damage to the Foam-bone of the face surrogate. At 20 mm thickness, rigid polyurethane foams performed best with Foam-bone damage ranging from 15.1% to 20.5%. Other materials with thicknesses of 20 to 28 mm showed Foam-bone damage between 21.8% and 35.1%. The HIC values ranged from 267 to 522, with memory foams and expanded polystyrene foam having the lowest values. Peak deceleration ranged from 71 g to 105 g for the materials tested. It is concluded that the impact energy can be dissipated by the protection material thereby reducing the risk of severe facial injury to the protected area.

Interpretation of Information Security and Data Privacy Protection According to the Data Use During the Epidemic

COVID-19 has swept the whole our country and the world in the beginning of 2020.31 provinces and municipalities across the country have launched the first-level response to major public health emergencies since January 24,and China has carried out intensive epidemic control.It is critical for effectively responding to COVID-19 to collect,collate and analyze people’s personal data.What’s more,obtaining identity information,travel records and health information of confirmed cases,suspected cases and close contacts has become a crucial step in epidemic investigation.All regions have made full use of big data to carry out personnel screening,travel records analysis and other related work in epidemic prevention and control,effectively improving the efficiency of epidemic prevention and control.However,data leakage,personnel privacy data exposure,and personal attack frequently occurred in the process of personnel travel records analysis and epidemic prevention and control.It even happened in the WeChat group to forward a person’s name,phone number,address,ID number and other sensitive information.It brought discrimination,telephone and SMS harassment to the parties,which caused great harm to individuals.Based on these,lack of information security and data security awareness and other issues were exposed.Therefore,while big data has been widely concerned and applied,attention should be paid to protecting personal privacy.It is urgent to pay more attention to data privacy and information security in order to effectively protect the legitimate rights of the people.Therefore,measures can be taken to achieve this goal,such as improving the relevant legal system,strengthening technical means to enhance the supervision and management of information security and data protection.

A novel multifunctional radioprotective strategy using P7C3 as a countermeasure against ionizing radiation-induced bone loss

Radiotherapy is a critical component of cancer care but can cause osteoporosis and pathological insufficiency fractures in surrounding and otherwise healthy bone.Presently,no effective countermeasure exists,and ionizing radiation-induced bone damage continues to be a substantial source of pain and morbidity.The purpose of this study was to investigate a small molecule aminopropyl carbazole named P7C3 as a novel radioprotective strategy.Our studies revealed that P7C3 repressed ionizing radiation(IR)-induced osteoclastic activity,inhibited adipogenesis,and promoted osteoblastogenesis and mineral deposition in vitro.We also demonstrated that rodents exposed to clinically equivalent hypofractionated levels of IR in vivo develop weakened,osteoporotic bone.However,the administration of P7C3 significantly inhibited osteoclastic activity,lipid formation and bone marrow adiposity and mitigated tissue loss such that bone maintained its area,architecture,and mechanical strength.Our findings revealed significant enhancement of cellular macromolecule metabolic processes,myeloid cell differentiation,and the proteins LRP-4,TAGLN,ILK,and Tollip,with downregulation of GDF-3,SH2B1,and CD200.These proteins are key in favoring osteoblast over adipogenic progenitor differentiation,cell matrix interactions,and shape and motility,facilitating inflammatory resolution,and suppressing osteoclastogenesis,potentially via Wnt/β-catenin signaling.A concern was whether P7C3 afforded similar protection to cancer cells.Preliminarily,and remarkably,at the same protective P7C3 dose,a significant reduction in triple-negative breast cancer and osteosarcoma cell metabolic activity was found in vitro.Together,these results indicate that P7C3 is a previously undiscovered key regulator of adipo-osteogenic progenitor lineage commitment and may serve as a novel multifunctional therapeutic strategy,leaving IR an effective clinical tool while diminishing the risk of adverse post-IR complications.Our data uncover a new approach for the prevention of radiation-induced bone damage,and further work is needed to investigate its ability to selectively drive cancer cell death.

China has become the largest producer and exporter of masks,protective clothing and other pandemic prevention supplies

Due to the effective control of the local COVID-19 pandemic,and the previous related production capacity has been greatly improved,China has become the largest producer and exporter of anti-pandemic products such as masks and protective clothing,helping many countries in the world to fight against pandemics.Except for China,reporters from the Global Times have reported that there are not many countries or regions that continue to export medical supplies.

数字经济时代数据安全风险防范体系之构建与优化

随着人工智能技术的发展,全球进入“数据驱动”时代,数据流动创造价值的同时也带来日趋严重的安全危机。针对以数据滥用、数据泄露、数据污染为代表的数据安全事件,亟须通过建立全面、科学、有效的数据安全风险防范体系加以解决。然而,数据的法律属性与权利归属在理论上尚未廓清,数据流通边界的界定、数据安全综合防御机制的建立、公权与私权的博弈、数据安全保护与数据开发利用之间的内在张力都在不同程度上影响和制约了数据安全风险防范体系的建构。通过明确数据共享的权责归属,健全数据流动安全保护机制以及建立数据全生命周期风险预警防御机制有助于深入探明数据安全保障的政策法制完善之路。

系统治理理念下东引运河防洪排涝工程体系研究

以系统治理理念为指导,采用河网一维水动力模型和水动力水质耦合模型,对东莞市东引运河进行水文水力计算和水质模拟,提出了考虑供水、国考断面水质保护因素的防洪排涝工程体系为13.5 km河道实施清淤疏浚,2.4 km河道拓宽至50 m,新建分洪闸(总净宽30 m,设计流量299 m^(3)/s),新建两岸堤防(护岸)工程23 km,新建虎门泵站(设计流量70 m^(3)/s),如此可将东引运河防洪标准提高至50年一遇。通过关闭沿线水闸,上游来水全部从虎门水闸、泵站排出的调度方式,可保证泗盛国考断面水质达到Ⅲ类考核目标。所提方案可达到洪、潮、涝、污协同共治的效果,可供当地水务部门决策和类似工程设计参考。

浙江慈溪海防林天牛的主要寄主树种与危害防控

[目的]调查慈溪海防林天牛危害树木种类,并研究天牛的防治方法。[方法]2009年,对慈溪主要防护林工程区及城市绿地、市林场开展野外调查,整理出天牛寄主树种名单,并列出遭受严重危害的林木种类。2021—2022年,对天牛寄主树种作了补充调查和资料完善。[结果]据野外调查,浙江慈溪沿海防护林天牛的寄主树种共73种,其中17种受害严重。经连续3年对天牛进行综合防控,林木天牛幼虫平均虫株率从35.70%下降到16.40%;田间林木天牛成虫虫口密度从1153.5头/hm^(2)下降到529.5头/hm^(2),降幅达54.10%,效果十分显著。[结论]综合应用药剂防治、人工杀灭和诱集树引诱集中防治等方法,有利于提高天牛防效。

玉米中后期病虫害控害增效药剂组合筛选

为了一体化防控玉米中后期病虫害,在玉米大喇叭口期至抽雄期,应用植保无人机,优化广谱、内吸传导性强、持效期长的杀菌剂与杀虫剂,并与微肥、飞防增效剂混配,开展了玉米中后期病虫害控害增效药剂组合筛选试验。结果表明,17%唑醚·氟环唑悬浮剂900 mL/hm^(2)+40%氯虫·噻虫嗪水分散粒剂180 g/hm^(2)+氨基酸液肥495 mL/hm^(2)+迈飛飞防专用增效剂300 mL/hm^(2)组合、43%唑醚·氟酰胺悬浮剂360 mL/hm^(2)+40%氯虫·噻虫嗪水分散粒剂180 g/hm^(2)+氨基酸液肥495 mL/hm^(2)+迈飛飞防专用增效剂300 mL/hm^(2)组合,对玉米大斑病、灰斑病的防治效果为79.8%~88.2%,对玉米螟、双斑萤叶甲的防治效果为92.3%~94.3%,增产率达15.2%,一次施药可达到防病、防虫、增产的效果。

高校武术教学中的安全管理问题分析与对策研究

随着武术教育在高校体育课程中的普及,确保武术教学过程中的安全成为一个不可忽视的关键问题。该文旨在分析高校武术教学中存在的安全管理问题,并提出有效的优化对策。通过分析学生基础不均、教学设施和器材不足、教师专业水平及安全意识不足以及学生自我保护意识薄弱等常见安全问题,研究提出了加强教师专业培训和安全教育、建立完善的安全规章制度、加强学生的安全意识和自我保护能力培养、改善教学设施和器材,以及加强监督和评估等5个方面的优化对策,旨在减少和预防安全事故的发生,提高高校武术教学的安全性和效果。

现代化进程中的社会保障模式转型

在现代化过程中发展而来的现代社会保障制度,通过“社会权利范式”与“结构功能范式”的互动,与各国的现代化过程不断同频共振,并依据不同国家差异化的目标约束和条件约束,形成了危机救助、风险预防等社会保障模式。随着现代化的深化,作为现代化重要特征的社会保障模式,必将依现代化所带来的约束条件而做出适应性选择。由现代技术催生的社会经济形态、社会结构、新就业形态的变化和国民对社会保障权益诉求的不断提高,必然要求社会保障模式从危机救助、风险预防向权益保障模式的转型,以适应变化社会对国民社会保障的需求。在中国式现代化的目标约束与新经济、新技术发展,人口结构变化等条件约束下,基于风险共识、责任共担、权益共享的权益保障模式是中国社会保障达成社会权利范式与结构功能范式内在平衡的可行路径。

水井管道腐蚀因素分析及镍磷镀层防护性能评价

胜利油田作业跟踪27口新管漏失井,均为单根外壁腐蚀,油管腐蚀问题给油田生产带来了极大的安全隐患。目前,油田注水管道系统采取的防腐措施主要有采用耐腐蚀管材、涂层防腐、镀层保护、氮化技术、化学防腐及阴极保护等几大类。文章研究了某井下采出液条件下水井管道在不同运行工况(不停井)中出现锈蚀现象的产生原因及机理,对该井漏失管开展了镍磷镀层防护实验并进行效果评价,确定该条件下管线发生锈蚀主要受井筒设计状况和套管内压力影响。根据实际情况开展镀层保护实验,并通过镀层保护方法提出后续防护措施。