An Investigation on Open-RAN Specifications:Use Cases,Security Threats,Requirements,Discussions

The emergence of various technologies such as terahertz communications,Reconfigurable Intelligent Surfaces(RIS),and AI-powered communication services will burden network operators with rising infrastructure costs.Recently,the Open Radio Access Network(O-RAN)has been introduced as a solution for growing financial and operational burdens in Beyond 5G(B5G)and 6G networks.O-RAN promotes openness and intelligence to overcome the limitations of traditional RANs.By disaggregating conventional Base Band Units(BBUs)into O-RAN Distributed Units(O-DU)and O-RAN Centralized Units(O-CU),O-RAN offers greater flexibility for upgrades and network automation.However,this openness introduces new security challenges compared to traditional RANs.Many existing studies overlook these security requirements of the O-RAN networks.To gain deeper insights into the O-RAN system and security,this paper first provides an overview of the general O-RAN architecture and its diverse use cases relevant to B5G and 6G applications.We then delve into specifications of O-RAN security threats and requirements,aiming to mitigate security vulnerabilities effectively.By providing a comprehensive understanding of O-RAN architecture,use cases,and security considerations,thisworkserves as a valuable resource for future research in O-RAN and its security.

What do student writers benefit from pre-writing discussions？

Given that speaking plays a fundamental role in writing, this paper reports on a one-year program of the training of student writers. This training program consists of three parts： a pre-training investigation over learners＇ needs and expectations, various forms of the pre-writing discussions over different stages of the program, and a post-training investigation to get the feedback from the learners.

Discussions on China's Current Economic Situation

It can be certain that the series of related policies will create a breakthrough in China’s economy.The inflation rate in China is low at present, and this is the right moment to adopta currency policy to raise directly the income of peasants and low-income families.

The Essence of Group Discussions

Group discussions are very important in oral English classes. It maximizes students＇ speaking time in a specified-time period. Group discussions have a strong positive effect on the atmosphere in the classroom and the behaviors of the students as they can get more ideas from their friends, and sometimes students don＇t even understand the topic for discussion but by interacting with others they can understand the topic. Particularly it is a good warm-up in conversational classes. The most important reason for using group discussions before speaking tasks is to reduce students＇ nervousness of making mistakes. And this encourages students to be more active in speaking class.

Prompt: Discuss social problem related to the discussions we had in class. Explain the means in which this specific problem impacts the society as a whole or segments of society

The progression of society tends to be linked with higher moral standards.Evolution has changed humanity from barbaric creatures to intelligent beings capable of making ethical decisions.In recent years,the gradual disappearance of Jim Crowism was noticeable as shown by the reduction in explicit racist behaviors—the most convincing sign being Barack Obama’s successful election to become the first African American president.

Visualizing Clashes and Alliances in Social Networks of Political Discussions

Political discussions are characterized by conflicts of interest, and decisions are made based on negotiations. In general, participants need to reinforce their opinions and influence other participants. In this context, it is important to know how allies and opponents are positioned, in order to understand the discussion dynamics and plan adequate actions. This paper suggests the use of social network visualizations to explicit oppositions and alliances in order to support the understanding and following of political discussions. A system which supports these visualizations was built. An experiment performed to test the proposed visualizations showed to which extent they can be more efficient in identifying information about clashes and alliances than an online discussion system can.

Conducting Discussions on Controversial Issues in College Classrooms

Student identity,their dichotomous logical framework,and teachers' beliefs constitute the major obstacles in conducting classroom discussion on controversial issues. This essay analyzes these obstacles and provides suggestions for teachers in tackling the problems,so that classroom discussions on controversial issues may exert beneficial outcomes.

Coexistence of liver abscess, hepatic cystic echinococcosis and hepatocellular carcinoma: A case report

BACKGROUND Human cystic echinococcosis(CE)is a life-threatening zoonosis caused by the Echinococcus granulosus(sensu lato).Hepatocellular carcinoma(HCC)is a leading cause of cancer-related mortality in the world.The coexistence of CE and HCC is exceedingly rare,and only several well-documented cases have been reported.In addition to this coexistence,there is no report of the coexistence of CE,HCC,and liver abscess to date.Herein,we aimed to report a case of coexistence of liver abscess,hepatic CE,and HCC.CASE SUMMARY A 65-year-old herdsman presented to the department of interventional therapy with jaundice,right upper abdominal distension and pain for 10 d.Laboratory test showed that he had positive results for HBsAg,HBeAb,HBcAb,and echino-coccosis IgG antibody.The test also showed an increased level of alpha fetopro-tein of 3400 ng/mL.An abdominal computed tomography(CT)scan revealed an uneven enhanced lesion of the liver at the arterial phase with enhancement and was located S4/8 segment of the liver.In addition,CT scan also revealed a mass in the S6 segment of the liver with a thick calcified wall and according to current guideline and medical images,the diagnoses of hepatic CE(CE4 subtype)and HCC were established.Initially,transarterial chemoembolization was performed for HCC.In the follow-up,liver abscess occurred in addition to CE and HCC;thus,percutaneous liver puncture drainage was performed.In the next follow-up,CE and HCC were stable.The liver abscess was completely resolved,and the patient was discharged with no evidence of recurrence.CONCLUSION This is the first reported case on the coexistence of liver abscess,hepatic CE,and HCC.Individualized treatment and multidisciplinary discussions should be performed in this setting.Therefore,treatment and diagnosis should be based on the characteristics of liver abscess,hepatic CE,and HCC,and in future clinical work,it is necessary to be aware of the possibility of this complex composition of liver diseases.

HIGHLIGHTS OF SPEECHES

This week promises a rich variety of thought-provoking sessions,covering emerging trends,global challenges and future opportunities.Inspiring speakers from across business,government,public,and private sectors spark passionate discussions and debates.I hope that like me,you are also excited at the prospect of encountering fresh ideas,opinions,and perspectives,and are ready to consider the role of standards in achieving the 2030 Agenda for Sustainable Development.

CIIS Delegation Visits Russia

From May 26 to 31,CIIS President Chen Bo led a delegation to Russia.During the visit,they participated in the 22nd China-Russia Bilateral Academic Seminar,hosted by the Moscow State Institute of International Relations.The delegation also engaged in discussions with scholars from the Institute of World Economy and International Relations.

The Global Significance of Contemporary Chinese Outlook on Human Rights

Since the 18^(th)National Congress of the Communist Party of China(CPC),General Secretary Xi Jinping has prioritized the advancement of human rights as a significant aspect of governing the country and has delivered a series of important speeches,instructions,and discussions centered on respecting and protecting human rights,thereby shaping the contemporary Chinese outlook on human rights.

NAVIGATING REGIONAL DYNAMICS--ASEAN’s unwavering path to regional development and stability

From July 21 to 27,Vientiane,the capital of Laos,hosted the 57th ASEAN Foreign Ministers'Meeting(AMM)and related gatherings.Over an intense week,25 ministerial meetings took place,including core ASEAN discussions and dialogues with 11 partner nations.The attendance of representatives from over 30 countries emphasized ASEAN's role as a crucial platform for multilateral engagement.

Call for Papers:International Conference on Ideas of Human Rights in the Ancient Chinese Classics(Announcement II)

Since the release of the Call for Papers for the“International Conference on Ideas of Human Rights in the Ancient Chinese Classics,”the announcement has received widespread attention from all sectors of society,and academic colleagues have enthusiastically submitted articles.To further focus on research topics,establish support platforms with academic journals,and promote renovation by returning to the roots of human rights research,we hereby issue Announcement II.We sincerely look forward to your attending the conference to share ideas in the discussions.

Consumption and Culturonomics

Lawmakers testify to the power of culture combined with tourism to spur economic growth and enhance the confidence of the nation.“Cultural economics.”That was President Xi Jinping’s thrust in his discussions with fellow deputies to the National People’s Congress(NPC)from Jiangsu Province during last year’s NPC session.Economically developed provinces generally see a cultural boom,he said.“It is worthwhile looking into the reason behind it.”

Celebrating 20 Years of Progress RSPO to release revised global standards for sustainable palm oil

The Roundtable on Sustainable Palm Oil(RSPO)held its annual conference(RT2023)in Jakarta,Indonesia,from November 20 to 22,2023.Themed“Partners for the Next 20,”the meeting highlighted what RSPO’s members and partners have achieved over the last two decades.Nearly a thousand delegates from the global sustainable palm oil industry held discussions on the core challenges facing the industry including mitigating climate change,increasing uptake of certified sustainable palm oil(CSPO),protecting labor rights,and facilitating greater smallholder inclusion in green supply chains through compliance with emerging international regulations.

Promising Signals--High-standard opening up promotes China-ASEAN high-quality cooperation and development

The third plenary session of the 20th Central Committee of the Communist Party of China(CPC)attracted worldwide attention.The meeting facilitated discussions of the future course of China’s economy,which will also influence the development of the global economy.

Online Economics Digital trade is making the world a smaller place

As part of the 2024 China International Fair for Trade in Services (CIFTIS),the Digital Trade Development Forum was held at the China National Convention Center in Beijing on September15.The event focused on promoting digital trade with an aim to build a digital economy ecosystem.It created a platform for businesses to explore opportunities for common development.Participating guests conducted in-depth discussions around topics such as overseas expansion before releasing statements and signing agreements.The forum was sponsored by the China Council for International Investment Promotion (CCIIP) and jointly organized by Beijing Haidian Association of Trade in Services and Sourcing Service,CCIIP's Enterprise Overseas Consulting Service Working Committee,and CCIIP's Digital Service and Digital Trade in Services Working Committee.

First Event of CIIS Dialogue Held on Multipolar World and Economic Globalization

On April 26,the first event of CIIS Dialogue was held under the theme of“An Equal and Orderly Multipolar World&A Universally Beneficial and Inclusive Economic Globalization:Implications and the Way Forward.”Officials of international organizations in China and renowned scholars at home and abroad had in-depth discussions on the two major Chinese propositions.

ISO Annual Meeting

The ISO Annual Meeting is the world’s premier event for the international standards community.This year’s event is hosted by ICONTEC,the national standards body of Colombia.With the theme“Breaking boundaries”,this open-to-all event comes at a pivotal time for the world.Over the course of a week,participants will engage in meaningful discussions about the most pressing challenges facing our planet today,while also exploring collaborative standards-based solutions for the future.