Columbia Presbyterian Medical Center, prostate cancer prevention trial; (212) 305-0347.

Community Board 8, assistant to the District Manager position available, for information, call 591-6000, e-mail cb8q@erols.com, deadline May 15.

Cross Island YMCA, employment opportunity in gymnastics department, call Ken Conyers, sports director; 479-0505, ext. 138.

Flushing YMCA, seeks lifeguards 18+, day-time water workout instructors and counselors and/or unit leaders for summer day camp, call 479-0505.

Forest Hills Civic Association, volunteers need to join the Richmond Hill/Kew/Forest Kiwanis, Legion to landscape and spruce up Remsen Park; 544-1029.

Kew Gardens Community Center Senior Programs: Mondays, Mildred Hasin; Tuesdays/Thursdays, Humor & Politics; Wednesdays, Stay Well Exercise; French conversation class. For information on other programs, call 268-5960.

Queens County Bar Association: Young or Newly Admitted Lawyers’ Group monthly meetings. For information, call 291-4500.

Queens Museum of Art, volunteer opportunities one morning or afternoon a week, contact Lorraine Klagsbrun, assistant director of education; 592-9700, ext. 131 or Betty Abramowitz, museum shop manager; 592-9700, ext. 238.

Sunnyside Community Senior Center: Meals-on-Wheels for frail/homebound seniors. For more information, call 392-6944, ext. 113.

Senior Wheels USA: Power wheelchairs available for 2002 for seniors and the disabled, call (800) 246-6010.