ΥΠΑΤΗ ΑΡΜΟΣΤΕΙΑ ΤΟΥ ΟΗΕ ΓΙΑ ΤΟΥΣ ΠΡΟΣΦΥΓΕΣEleni Kazara
The document summarizes the United Nations High Commissioner for Refugees (UNHCR), an international organization that provides protection and assistance to refugees. It discusses that UNHCR was created in 1951 to aid European refugees after World War II. Today, UNHCR has over 7,000 employees in 120 countries assisting 36.4 million refugees worldwide. The main responsibility of UNHCR is to ensure respect for refugees' fundamental rights and international law regarding asylum and involuntary returns. The organization also promotes refugee agreements and provides aid to displaced people. The class visited the UNHCR website and watched videos about child refugees' experiences to learn more about the organization and its mission.
The students read a book and watched a video about refugees to understand the emotions they may experience. They listed feelings like fear, sadness, anger, and indignation that a refugee might have, such as fear in a foreign country, anger at unfair treatment, and sadness over an uncertain future. To represent these emotions, the students made paper dolls and wrote the names of feelings on them.
RDBMS was first conceptualized by Dr. Edgar Codd in 1970 and allows data to be organized into tables with rows and columns that can be related to each other. SQL was developed in 1974 as a query language to access and manage data within RDBMS and is now the most widely used language for relational database systems, allowing users to store, manipulate, and retrieve data. RDBMS uses the relational model to organize data into one or more tables and uses SQL as the standard language to query the database.
Eleni Kazara is a special educator from the small Greek island of Thassos, where she has worked for 13 years at the local primary school. She is married with two children, a son named Grigoris and a daughter named Anna. Kazara is excited to participate in an educational program to share information about her island, country, and the 9 students she teaches, 6 of whom are girls and 3 are boys. She includes links to photos of Greece, Thassos island, and her school.
A thread is a lightweight process that exists within a program to perform tasks. A single-threaded process only has one thread, while a multi-threaded process contains multiple threads that allow different tasks to be handled simultaneously, improving performance over single-threaded programs by enabling parallel execution. Multithreading is important in Java and allows applications to have reduced computation time by running many tasks at once in a single process.
The document discusses telecommunication, defining it as the exchange of information over distance using electronic means. It outlines the basics of telecommunication systems, including transmitters, mediums, and receivers. The document also covers different types of communication: simplex (one-way), half-duplex (two-way but one direction at a time), and full-duplex (two-way simultaneously). Finally, it argues that telecommunication relies on artificial intelligence to extend human communication abilities like hearing and speaking beyond natural limits of distance.
ΥΠΑΤΗ ΑΡΜΟΣΤΕΙΑ ΤΟΥ ΟΗΕ ΓΙΑ ΤΟΥΣ ΠΡΟΣΦΥΓΕΣEleni Kazara
The document summarizes the United Nations High Commissioner for Refugees (UNHCR), an international organization that provides protection and assistance to refugees. It discusses that UNHCR was created in 1951 to aid European refugees after World War II. Today, UNHCR has over 7,000 employees in 120 countries assisting 36.4 million refugees worldwide. The main responsibility of UNHCR is to ensure respect for refugees' fundamental rights and international law regarding asylum and involuntary returns. The organization also promotes refugee agreements and provides aid to displaced people. The class visited the UNHCR website and watched videos about child refugees' experiences to learn more about the organization and its mission.
The students read a book and watched a video about refugees to understand the emotions they may experience. They listed feelings like fear, sadness, anger, and indignation that a refugee might have, such as fear in a foreign country, anger at unfair treatment, and sadness over an uncertain future. To represent these emotions, the students made paper dolls and wrote the names of feelings on them.
RDBMS was first conceptualized by Dr. Edgar Codd in 1970 and allows data to be organized into tables with rows and columns that can be related to each other. SQL was developed in 1974 as a query language to access and manage data within RDBMS and is now the most widely used language for relational database systems, allowing users to store, manipulate, and retrieve data. RDBMS uses the relational model to organize data into one or more tables and uses SQL as the standard language to query the database.
Eleni Kazara is a special educator from the small Greek island of Thassos, where she has worked for 13 years at the local primary school. She is married with two children, a son named Grigoris and a daughter named Anna. Kazara is excited to participate in an educational program to share information about her island, country, and the 9 students she teaches, 6 of whom are girls and 3 are boys. She includes links to photos of Greece, Thassos island, and her school.
A thread is a lightweight process that exists within a program to perform tasks. A single-threaded process only has one thread, while a multi-threaded process contains multiple threads that allow different tasks to be handled simultaneously, improving performance over single-threaded programs by enabling parallel execution. Multithreading is important in Java and allows applications to have reduced computation time by running many tasks at once in a single process.
The document discusses telecommunication, defining it as the exchange of information over distance using electronic means. It outlines the basics of telecommunication systems, including transmitters, mediums, and receivers. The document also covers different types of communication: simplex (one-way), half-duplex (two-way but one direction at a time), and full-duplex (two-way simultaneously). Finally, it argues that telecommunication relies on artificial intelligence to extend human communication abilities like hearing and speaking beyond natural limits of distance.