INTRODUCTION Heterotopic pregnancy is diagnosed as the presence of two gestations simultaneously. This is a rare situation with a reported prevalence of 0.08% in normal conception. CASE PRESENTATION We report a case of a 24-year-old primigravida of Indian origin who was seen in the emergency department with a diagnosis of a ruptured ectopic pregnancy. A careful ultrasound assessment led to th...

Helping and sharing among humans is often motivated by empathy and accompanied by a sense of satisfaction. To determine whether similar self-rewarding mechanisms may underpin assistance among nonhuman primates, eight female brown capuchin monkeys (Cebus apella) underwent testing in a simple choice paradigm. Paired with a partner, subjects could select either a "selfish" option that rewarded onl...

The gratifying results now being obtained in the treatment of children with acute lymphocytic leukemia has had at least two major effects on the attitude of the medical community. First, these results have encouraged physicians to think of ALL as an eminentably treatable and, perhaps, curable disease, Second, physicians have become more aware of the obligation to avoid serious side effects that...

Service-learning (SL) has become a popular teaching method everywhere from elementary schools to colleges. Despite the increased presence of SL in the education world, it is still unclear what student outcomes are associated with SL programs and what factors are related to more effective programs. A meta-analysis of 62 studies involving 11,837 students indicated that, compared to controls, stud...

As charismatic mega-fauna, sea turtles attract many volunteers to conservation programs. This article examines the ways in which volunteers value sea turtles, in the specific context of volunteers working with the Caribbean Conservation Corporation, at Tortuguero, Costa Rica. The complexity of volunteer values is explored using a qualitative approach. In-depth interviews with 31 volunteers were...

My effort to use synchronously dividing cultures to examine the Escherichia coli cell cycle involved a 10-year struggle with failure after failure punctuated by a few gratifying successes, especially at the end. In this essay, I recount my personal journey in this obsessive experimental pursuit. That narrative is followed by a description of a simplified version of the "baby machine," a techniq...

The results of 75 total hip replacements in 42 children with juvenile chronic arthritis are reported after a mean follow-up of 5.4 years. Their ages ranged from 11 to nearly 17 years at operation and many had active disease. Severe pain and marked stiffness of the hips were limiting their independence. At least half of the children were still growing and continued to grow after operation. The p...

From January 1959 to January 1969, eight patients with atrial myxoma were seen at Emory University and Grady Memorial hospitals. Five patients had symptoms and signs compatible with mitral stenosis, three of whom underwent surgery with an incorrect preoperative diagnosis of mitral stenosis. Two myxomas were found at autopsy, one in a patient who died of acute myocardial infarction. One patient ...

We introduce and evaluate the effectiveness of temptation bundling-a method for simultaneously tackling two types of self-control problems by harnessing consumption complementarities. We describe a field experiment measuring the impact of bundling instantly gratifying but guilt-inducing "want" experiences (enjoying page-turner audiobooks) with valuable "should" behaviors providing delayed rewar...

As can be seen from Table 1 the reduction in both maternal and foetal mortality in the 16 years since 1945 has been gratifying and to assess the reasons for this improvement a series of 425 cases of confirmed placenta praevia has been critically analyzed. At the same time the opportunity was taken of studying the factors contributing to maternal and foetal deaths to see if any further improveme...