The 58th Open Seminar on Acoustics and 2nd Polish-German Structured Conference on Acoustics are organized by the Gda?sk Division of the Polish Acoustical Society, the latter jointly with the German Acoustical Society DEGA. These scientific events are going to be held in the Delfin Hotel in Jurata on Hel Peninsula on 13 - 16 September 2011.

The topics of the papers submitted to the 58th Open Seminar on Acoustics cover a large area of theoretical, technical and experimental research in the field of acoustics. The 2nd Polish-German Structured Conference on Acoustics will be held in the following sections: multi-modal and object-oriented approaches to audition, computational acoustics, active noise control, room and building acoustics, and seabed acoustics.

In June 2011, Polish Section of the Audio Engineering Society will celebrate its 20th anniversary. On this occasion, the society officers, ending their second, two-year term, present a short summary of the Section's activity during the past four years. The Section's structure comprises the main unit - that is the Polish AES section, and three student sections, associated with the Department of Multimedia Systems at the Gdansk University of Technology, the Chair of Acoustics at the Wroc?aw University of Technology, and the Department of Mechanics and Vibroacoustics at the AGH University of Science and Technology in Cracow. The latter section began its activity only last year. In addition to formal student sections, in the activities of the Polish AES Section also participate students of the Department of Sound Engineering, at the The Fryderyk Chopin University of Music in Warsaw, and students of the Department of Elecroacoustics, at the Warsaw University of Technology.

The 14th International Symposium on Sound Engineering and Tonmeistering will be held on May 19-21, 2011, in Wrocław. The Symposium is organized by the Chair of Acoustics, Institute of Telecommunications, Teleinformatics and Acoustics, Wrocław University of Technology, under auspicious of the Polish Section of the Audio Engineering Society. The organizers cordially invite sound engineers, music producers, acousticians, and specialists in sound reinforcement, scientists who deal with sound engineering, sound recording and related areas, students, and employees of the audio industry to participate in the Symposium. The Symposium programme will include lecture sessions and workshop presentations.

The Bulletin of the Polish Academy of Sciences: Technical Sciences (Bull.Pol. Ac.: Tech.) is published bimonthly by the Division IV Engineering Sciences of the Polish Academy of Sciences, since the beginning of the existence of the PAS in 1952. The journal is peer‐reviewed and is published both in printed and electronic form. It is established for the publication of original high quality papers from multidisciplinary Engineering sciences with the following topics preferred: Artificial and Computational Intelligence, Biomedical Engineering and Biotechnology, Civil Engineering, Control, Informatics and Robotics, Electronics, Telecommunication and Optoelectronics, Mechanical and Aeronautical Engineering, Thermodynamics, Material Science and Nanotechnology, Power Systems and Power Electronics.

Journal Metrics: JCR Impact Factor 2018: 1.361, 5 Year Impact Factor: 1.323, SCImago Journal Rank (SJR) 2017: 0.319, Source Normalized Impact per Paper (SNIP) 2017: 1.005, CiteScore 2017: 1.27, The Polish Ministry of Science and Higher Education 2017: 25 points.

Abbreviations/Acronym: Journal citation: Bull. Pol. Ac.: Tech., ISO: Bull. Pol. Acad. Sci.-Tech. Sci., JCR Abbrev: B POL ACAD SCI-TECH Acronym in the Editorial System: BPASTS.