The document discusses two solutions to classic concurrency problems:
1) An unbounded buffer problem is solved using locks and conditions variables to control access to a shared buffer by producer and consumer threads.
2) The dining philosophers problem is solved by having philosophers randomly wait after acquiring one fork in order to avoid deadlock when acquiring the second fork. Locks are used to limit philosophers trying to acquire forks simultaneously.
The document discusses implementing paging algorithms FIFO and LRU in NachOS. The authors tried to implement the algorithms in NachOS but encountered errors when compiling. They then implemented the paging algorithms in Java files instead. The document also discusses page tables, which map virtual addresses to physical addresses and are used in virtual memory systems to identify which pages are in memory and their locations.
The document discusses different types of computer memory including cache memory, RAM, and solid state drives. It explains that cache memory is faster than RAM and stores frequently accessed data from RAM to improve performance. It also describes the components and workings of traditional hard disk drives, comparing factors like latency and transfer rates for different RPM speeds. Solid state drives are also introduced as an alternative to hard drives that have advantages like faster access times but higher costs.
The document discusses the networking abstraction in NachOS which uses mailboxes for communication between closely connected machines, with messages that are unreliable but not corrupted, and provides ordered and fixed-sized messages. It explains the handshake process between a host and gateway server using sequence numbers to establish and acknowledge connections. Sources are provided for further information on TCP sequence and acknowledgement numbers, networking topics, and an open courseware blog.
The document summarizes an event called EbetsuShift Forum organized by students in Ebetsu, Japan in 2011. The forum featured Professor Akira Suzuki, a Nobel Prize-winning chemist, as the main guest to discuss regional development and education. Over 45 students from 7 universities formed an organizing committee and successfully planned a seminar with over 200 participants, impressing attendees with their initiative. The chairpersons of the organizing committee commented that it was an unforgettable and satisfying experience that showed the positive impact students can have. The author, a former professor, was proud of the interested, motivated students and felt they demonstrated the future potential of Japan.
How Stiftelsen Japan-Sweden Musicstudy Foundation and music school can contribute to the 150 year anniversary of diplomatic relations between Japan and Sweden
The document discusses implementing paging algorithms FIFO and LRU in NachOS. The authors tried to implement these algorithms but encountered errors when compiling. They then created user programs and paging-swap programs in Java to test the algorithms. The document also provides an overview of page tables, describing them as the data structure used in virtual memory systems to map virtual addresses to physical addresses with each address space having an associated page table and disk map.
The document discusses the differences between user programs and the kernel. It explains that the kernel runs in supervisor mode and manages system resources, loading and allocating memory for user programs. It also covers virtual memory systems, how they use page tables to map virtual to physical addresses, and how the page fault handler works to load pages from disk when needed. Finally, it discusses file systems and techniques used like block buffer caches to reduce disk access and improve performance.
The document discusses networking and encryption in NachOS. It describes several key classes used for message passing: PostOffice handles message sending and receiving across machines using mailboxes; Mail defines message format with PacketHeader and MailHeader; MailHeader includes destination and size; MailBox stores received messages; and Network emulates physical connections using PacketHeader. Messages can be unreliable and dropped, with fixed size, delivered via threads between mailboxes across machines.
The Swedish municipality of Motala is running a policy called "Growth via diversity" led by Mayor Elias Georges, who came to Sweden as a refugee from Lebanon in 1980. The seminar will discuss this policy from Swedish and Japanese perspectives. Mayor Georges and Jan Holmberg from Motala Municipality will speak about integrating immigrants and refugees and how it leads to growth. Tomoko Ishii will discuss refugee issues in Japan. The seminar aims to discuss how diversity can promote growth.
How Stiftelsen Japan-Sweden Musicstudy Foundation and music school can contribute to the 150 year anniversary of diplomatic relations between Japan and Sweden
The document discusses implementing paging algorithms FIFO and LRU in NachOS. The authors tried to implement these algorithms but encountered errors when compiling. They then created user programs and paging-swap programs in Java to test the algorithms. The document also provides an overview of page tables, describing them as the data structure used in virtual memory systems to map virtual addresses to physical addresses with each address space having an associated page table and disk map.
The document discusses the differences between user programs and the kernel. It explains that the kernel runs in supervisor mode and manages system resources, loading and allocating memory for user programs. It also covers virtual memory systems, how they use page tables to map virtual to physical addresses, and how the page fault handler works to load pages from disk when needed. Finally, it discusses file systems and techniques used like block buffer caches to reduce disk access and improve performance.
The document discusses networking and encryption in NachOS. It describes several key classes used for message passing: PostOffice handles message sending and receiving across machines using mailboxes; Mail defines message format with PacketHeader and MailHeader; MailHeader includes destination and size; MailBox stores received messages; and Network emulates physical connections using PacketHeader. Messages can be unreliable and dropped, with fixed size, delivered via threads between mailboxes across machines.
The Swedish municipality of Motala is running a policy called "Growth via diversity" led by Mayor Elias Georges, who came to Sweden as a refugee from Lebanon in 1980. The seminar will discuss this policy from Swedish and Japanese perspectives. Mayor Georges and Jan Holmberg from Motala Municipality will speak about integrating immigrants and refugees and how it leads to growth. Tomoko Ishii will discuss refugee issues in Japan. The seminar aims to discuss how diversity can promote growth.
フィリピン留学セブSMEAG英語学校のパンフレット。CEBU SMEAGはセブ島で3つのキャンパス（クラシック、キャピタル、スパルタ）があるフィリピン最大規模の語学学校です。
学生目線のセブ留学体験談はフィルイングリッシュ学生レポーターの留学日記ブログ、フィリピン留学通信で更新中！ by フィリピン留学エージェント、フィルイングリッシュ
Entrepreneurship Education in Sweden
Case of Helsingborg
Reports by two teachers from Shizuoka who experienced internship in Helsingborg in September, 2017
This document from the OECD presents data on education spending and policies across countries. It finds that on average across OECD nations, governments now fund 30% of total tertiary education expenditures. It also shows data on tuition fees, which vary widely internationally, from over $11,000 USD per year in the US to under $2,000 in most European countries. Additionally, the document examines student mobility rates and finds the highest percentages of students studying abroad in countries like New Zealand, Australia and the UK.
This document discusses promoting creativity and self-efficacy in Japanese schools with inspiration from Scandinavia. It has three objectives: 1) To identify school education as a main problem for resilience in Japan's knowledge economy. 2) To describe experimental projects in Japanese schools to promote creativity and self-efficacy in collaboration with Scandinavian countries. 3) To introduce "active learning" in the new Japanese curriculum starting in 2020 for all primary and secondary education subjects.
Cats can provide benefits to those in retirement homes and facilities for people with dementia. Some cats, like Oscar in the US, have shown extraordinary empathy towards weak and elderly residents, reducing loneliness and being a source of joy. While there are potential negatives like allergies or damage to furniture, on the whole cats can provide companionship, a calming influence, and a sense of continuity for residents in their later lives. Facilities must consider responsibilities, sanitation, and what happens to the cat if its owner passes away.
This document outlines the projects and events of Project 2018, which aims to discuss collaboration opportunities between Sweden and Japan ahead of the 150th anniversary of diplomatic relations in 2018. It lists 15 discussion sessions that have occurred between 2013-2016 on topics like education exchange, cultural exchange, innovation, health, film, business, and youth perspectives. The goals are stated as discussing what Sweden and Japan can do together for 2018 and having fun, creative and stimulating discussions during participatory meetings and workshops. Common interests between the two countries are listed as the economy, welfare, and sustainability.
1) Outdoor education is needed in Japan to develop skills for children and educators through utilizing local communities.
2) It can help address declining populations in rural areas by promoting outdoor activities and nature tourism.
3) Evidence shows that outdoor education provides diverse learning environments and styles from textbooks to hands-on activities to foster problem solving, collaboration, and other competencies being emphasized in updates to educational guidelines in 2020.
