The Iterated Prisoner's Dilemma (IPD) is widely regarded as a standard model for the evolution of cooperation. This review tries to give an outline of the development in the field since Axelrod and Hamilton (1981) spawned an avalanche of papers with the announcement of Tit-for-tat as the winner of their computer tournament. The most important advancements in the game-theoretical work on differe...

Address correspondence to: Omar García, DrPH, MS, Adjunct Professor, Medical Science Campus, School of Dental Medicine, University of Puerto Rico, PO Box 365067, San Juan, PR 00936. Email: [email protected] Objective: 1) To describe implant success in the posterior maxillary when a sinus augmentation procedure was performed simultaneously with implant placement and then compare differences in...

BACKGROUND We aimed to investigate the epidemiological, clinical, paraclinical, and treatment aspects of elastofibroma dorsi through a retrospective study of 76 patients who underwent surgery between January 2008 and December 2012 in our department. METHODS Our study is retrospective between January 2008 and December 2012. We admitted 79 patients with a subscapular mass, and only 76 patients ...

Posterior root avulsions of the medial and lateral menisci result in decreased areas of tibiofemoral contact and increased tibiofemoral contact pressures. These avulsions may lead to the development of osteoarthritis. Therefore, two surgical techniques, the transtibial pullout repairand thesutureanchor repair, have recentlybeendeveloped to restore the native structure and function of the menisc...

Competent cultures of Bacillus subtilis 168 were fractionated on gradients of Renografin-76 to obtain a population enriched for competent cells. The cells in this fraction contained two nuclear bodies. The competent cell fraction synthesized deoxyribonucleic acid and ribonucleic acid at reduced rates compared to the noncompetent cell fraction and appeared to divide synchronously upon incubation...

Hepatocellular carcinoma is one of the most common malignancies world wide. We present data on 76 patients admitted to the Shaikh Zayed Hospital. Mean age was 52.2 +/- 11.3 years. Eighty six percent were males and 14% females. Eighty-six percent patients had underlying cirrhosis documented on ultrasound examination. Seventy-five percent were positive for anti HCV, 10% for HBsAg positive, 10% fo...

St. Thomas's Jany. 7th. 1802, Dear Father I write to acknowledge ye. reciept of ye. Lewis bank note value £10, with wh. I will go with Mr. Sparrow for a good Brussels Carpet, I this day have been asking Mr. Whitfield what he gave for his B.C. that he has in ye. drawing Room he told me 7s. pr. Yd. made up, but at ye. place where Mr. S. recommends me I hope to be able to get one cheaper, I must c...

A collective intoxication with chlorine gas in 76 children (21 males, 55 females; the median age was 9.9 years) is reported. They were treated with a combination of oxygen gas (O2) and corticosteroids until the symptoms disappeared.

Though the need for appropriate wastewater management technologies is undoubtedly a realized issue, so far there has been very little action taken towards wastewater treatment in Nepal. The centralized approaches of wastewater management have been unsuccessful as the existing traditional lagoons or activated sludge type wastewater treatment plants are not functioning or partially operating at f...