text: UNITED NATIONS SECRETARIAT ST/SG/SER.A/266/Add.20 5 September 1990 PERMANENT MISSIONS TO The information shown below has been received by the Protocol and Liaison Service from Permanent Missions. Inquiries should be addressed to that Service, Room 201, telephone 963-7174. Changes in the Permanent Missions ALBANIA COLOMBIA Departures: Departure: M. Mikel GJTKA Srta. Mireya GUTIERREZ Second Secretary Attaché M. Petrag GEROLLARI Attaché COSTA RICA Departures: Mme Mimoza GJIKA HLE. Srta. Ingrid HERRMANN, M.A. Attaché Ambassador Second Alternate Representative to the United Nations ALGERIA Sr. Adolfo CHACON Appointment: Minister Counsellor Mr. Abdelkader BELLEILI Counsellor Sra. Sylvia MORA Counsellor Departure: Mr. Mohamed HAMZA Sra. Lyssette ROJAS-MONGE First Secretary Attaché (Cultural) CYPRUS BRAZIL Appointment: Appointment: Mr. George KASOULIDES HLE. Mr. Ronaldo Mota SARDENBERG Second Secretary Ambassador Extraordinary and Plenipotentiary Permanent Representative to the United Nations ECUADOR Appointment: (The Permanent Representative presented his Dr. Abelardo POSSO SERRANO credentials to the Secretary-General on 28 August 1990). Minister Deputy Permanent Representative to the United Nations CANADA Appointment: EGYPT Ms. Ginette HUDON Departures: Attaché Mr. Sherif Yehia REFAAT Third Secretary Departure: Ms. Héléne LAFORTUNE Mr. Mohsen Yousef HEZZA Counsellor (Social Affairs) Administrative Attaché ST /SG/SER.A/266/Add.20 GERMANY, FEDERAL REPUBLIC Appointment: Ms. Ruth LAUER-SOLTSIEN Assistant Attaché GHANA Appointment: Mr. Simon Arthur NYAMIKEH First Secretary IRELAND Departure: Miss Majella O° CONNOR Attaché (Administration) KENYA Promotion: Mr. Robert Kamau GATHUNGU Counsellor MEXICO Departures: Srta. Cecilia CHA VEZ-RODRIGUEZ Attaché Srta. Beatriz CHAVEZ-GARDUNO Attaché NEW ZEALAND Appointment: H.E. Mr. Terence Christopher O'BRIEN Ambassador Extraordinary and Plenipotentiary Permanent Representative to the United Nations Mrs. O9Brien The Permanent Representative presented his credentials to the Secretary-General on 28 August 1990). NIGERIA Appointment: Mr. Peter O. EDEMA Attaché Mrs. Edema NORWAY Appointment: Mr. Lasse Sigurd SEIM Counsellor PHILIPPINES Departures: Mr. Bayani S. MERCADO First Secretary Mr. Libran N. CABACTULAN Second Secretary Mr. Juan Ricardo J. TEEHANKEE Attaché SRI LANKA 
analysis: This text appears to be a list of personnel changes and appointments at the Permanent Missions to the United Nations. The information includes departures, appointments, and promotions of staff members from various countries. While there is no explicit mention of specific fields or industries, the text seems to be related to international relations, diplomacy, and global governance, which are often associated with the United Nations.