New synthetic routes to biscarbonylbipyridinerhenium(I) complexes cis,trans-[Re(X2bpy)(CO)2(PR3)(Y)n+ (X2bpy = 4,4'-X2-2,2'-bipyridine) via photochemical ligand substitution reactions, and their photophysical and electrochemical properties.

Photochemical ligand substitution of fac-[Re(X2bpy)(CO)3(PR3)]+ (X2bpy = 4,4'-X2-2,2'-bipyridine; X = Me, H, CF3; R = OEt, Ph) with acetonitrile quantitatively gave a new class of biscarbonyl complexes, cis,trans[Re(X2bpy)(CO)2(PR3)(MeCN)]+, coordinated with four different kinds of ligands. Similarly, other biscarbonylrhenium complexes, cis,trans-[Re(X2bpy)(CO)2(PR3)(Y)]n+ (n = 0, Y = Cl-; n = 1, Y = pyridine, PR'3), were synthesized in good yields via photochemical ligand substitution reactions. The structure of cis,trans-[Re(Me2bpy)(CO)2[P(OEt)3](PPh3)](PF6) was determined by X-ray analysis. Crystal data: C38H42N2O5F6P3Re, monoclinic, P2(1/a), a = 11.592(1) A, b = 30.953(4) A, c = 11.799(2) A, V = 4221.6(1) A3, Z = 4, 7813 reflections, R = 0.066. The biscarbonyl complexes with two phosphorus ligands were strongly emissive from their 3MLCT state with lifetimes of 20-640 ns in fluid solutions at room temperature. Only weak or no emission was observed in the cases Y = Cl-, MeCN, and pyridine. Electrochemical reduction of the biscarbonyl complexes with Y = Cl- and pyridine in MeCN resulted in efficient ligand substitution to give the solvento complexes cis,trans-[Re(X2bpy)(CO)2(PR3)(MeCN)]+.

Equipment and methods for simple sensory testing.

Four simple tests which can be used for routine sensory testing following trigeminal nerve injuries are suggested. The methods for constructing the equipment needed for these tests are described.

Tuberculosis of the pancreas: a case report.

A 73-year-old female died of adult respiratory distress syndrome (ARDS) and multiple organ system failure (MOSF) after a routine cholecystectomy for acute cholecystitis. An autopsy revealed disseminated tuberculosis with a tuberculous abscess of the pancreas.

Immune hemolytic anemia associated with sulindac.

A number of adverse reactions have been associated with sulindac, a nonsteroidal anti-inflammatory drug, but acute hemolytic anemia associated with sulindac has not yet been reported, to our knowledge. We encountered two cases of severe immune hemolytic anemia, one fatal, which appear to have been related to sulindac. In vitro studies provided evidence that antibodies to sulindac and its metabolites were present in the serum of both patients.

Ask-Upmark kidney with contralateral renal artery fibromuscular dysplasia.

A case of Ask-Upmark kidney with coexistent contralateral renal artery fibromuscular dysplasia is presented with detailed light and electron microscopic findings. Both lesions are known to produce renin-mediated hypertension which was corrected in this patient by nephrectomy and contralateral renal artery bypass. Ask-Upmark kidney is briefly reviewed.

Intensive medical student support groups: format, outcome, and leadership guidelines.

The authors report on a five-year experience with process-oriented discussion groups at annual four-day, off-campus retreats attended by students, faculty members, and "significant others." Group sessions comprised 17 hours of each retreat, which also included community activities and recreation time. Group leaders represented a diversity of professional backgrounds. In response to questionnaires sent from one to two months after the retreats, participants rated group experiences highly, although they also considered a significant amount of time for unstructured interpersonal interaction and recreation important. Participants enjoyed meeting students and faculty members in a relatively "role-free" setting, and students derived an enhanced sense of self-awareness from group discussions. The most highly valued group leader behaviors were participation as a group member, facilitation of interpersonal communication, and attention to group members' needs. Guidance and direction by the leaders were also considered valuable, provided that they did not impose inappropriate expectations on their groups.