Energy Storage—The Buffer We Have Been Looking For [About This Issue]

I-36: Preimplantation Genetic Diagnosis - Where Have We Been and Where Are We Going

Preimplantation genetic diagnosis (PGD) is now considered routine in IVF laboratories with micromanipulation capability and access to genetic diagnostic services. The past two decades have witnessed a dramatic increase in the use of PGD, the number of cycles performed, and the indications for which PGD has been used. This increase has been mirrored by a slow, but steady, increase in the range o...

We Have Always Been . . . Cyborgs

philosophy of mathematics suited well the ‘‘general emphasisin later nineteenth-century mathematics on revisiting foundationalquestions’’ (p. 61). Pure geometry as it emerged from Frege, Paschand Hilbert, provided a diagram-free, purely sentential notion ofproof, which has lasted unto our own day.In the second, and greater, part of the book, Greaves traces outthe interre...

A readily available assay for anti-immunoglobulin A: is this what we have been waiting for?

A lthough anaphylactic transfusion reactions due to underlying immunoglobulin A deficiency (IgAD) are rare, it is not uncommon for transfusion medicine physicians to encounter patients with transfusion reactions with respiratory distress or hypotension, where the specter of anaphylaxis is raised. In such cases, IgAD with associated anti-IgA as the underlying cause must be excluded. Another comm...

Developing Thoughts About What Might Have Been

Recent research has changed how developmental psychologists understand counterfactual thinking or thoughts of what might have been. Evidence suggests that counterfactual thinking develops over an extended period into at least middle childhood, depends on domain-general processes including executive function and language, and dissociates from counterfactual emotions such as regret. In this artic...

Where we have been, where we are going.