One can prove professional activities at a university by providing documentation such as appointment letters, contracts, or official letters of employment from the university. Additionally, one can provide evidence of teaching responsibilities, research projects, publications, conference presentations, and any other relevant professional activities. It is also helpful to have letters of recommendation or references from colleagues or supervisors at the university to support one's professional activities. **

The choice between a state university and a private university depends on various factors such as cost, size, location, and academic programs. State universities typically have lower tuition fees for in-state residents and offer a wide range of academic programs. Private universities, on the other hand, may have smaller class sizes, more personalized attention, and potentially more resources for research and extracurricular activities. Ultimately, the decision should be based on individual preferences, financial considerations, and academic goals. **

The choice between a traditional university and a university of applied sciences depends on your career goals and learning style. If you are interested in pursuing a more theoretical and research-oriented education, a traditional university may be the better fit for you. On the other hand, if you are looking for a more practical and industry-focused education with hands-on experience, a university of applied sciences may be the right choice. Consider your long-term career aspirations and the type of learning environment that best suits your needs before making a decision. **

When referring to the university in Berlin, it is important to specify whether you mean Humboldt University or Free University Berlin as they are two separate institutions. Humboldt University is one of the oldest universities in Berlin and is known for its strong emphasis on research and academic excellence. On the other hand, Free University Berlin is a more modern university with a focus on interdisciplinary studies and international cooperation. Both universities have their own unique strengths and areas of expertise. **

Some outdoor activities include hiking, biking, camping, fishing, and kayaking. These activities allow people to enjoy nature, get some exercise, and experience the outdoors. Other outdoor activities can include picnicking, birdwatching, rock climbing, and gardening. Outdoor activities provide a great way to relax, unwind, and connect with the natural world. **

Berlin University, also known as Humboldt University of Berlin, is one of Germany's oldest universities, founded in 1810. It is known for its strong emphasis on research and academic excellence, offering a wide range of programs in various fields of study. The university has produced numerous Nobel laureates and is considered one of the most prestigious universities in Europe. With a rich history and a commitment to innovation, Berlin University continues to attract students and scholars from around the world. **

"Police University" is a South Korean drama series that follows the story of a former hacker who enrolls in a police university to become a detective. The show explores themes of friendship, teamwork, and justice as the characters navigate their way through various cases and challenges. **

'Police University' is a South Korean drama series that follows the story of a former hacker who enrolls in the police academy to become an officer. The show combines elements of action, comedy, and romance as the main character navigates the challenges of police training and solves crimes with his unique skills. The series also explores themes of teamwork, friendship, and personal growth as the characters work together to overcome obstacles and achieve their goals. **