“Manipulating Maps and Winning Elections” is a challenging paper to comment upon. In part, this is because it is, in sum, convincing, and in part because it is merely the tip of Professor Johnston’s iceberg: It rests upon (and cites) a score of his previous works, which have been produced over more than twenty-five years of scholarly activity. In particular, this paper brings to bear data from ...

References 1. Curry GR, White DN: Color coded ultrasonic differential velocity arterial scanner (Echoflow). Ultrasound Med Biol 4: 27-35, 1978 2. Barnes RW, Russell HE, Bone GE, Slaymaker EE: Doppler cere­ brovascular examination: Improved results with refinements in tech­ nique. Stroke 8: 468-71, 1977 3. Gee W, Mehigan JT, Wylie EJ: Measurement of collateral cerebral hemispheric blood pressure...

OBJECTIVE To compare the actual sum of canine and premolars and that predicted from three mixed dentition prediction methods in orthodontic patients at the Aga Khan University Hospital (AKUH), Karachi. STUDY DESIGN Cross-sectional comparative study. PLACE AND DURATION OF STUDY Orthodontic clinic at the Aga Khan University Hospital from June 2002 to December 2007. METHODOLOGY Data were col...

First-reported monthly and quarterly time-series data on nine macroeconomic variables from 1960–1993 are given. Features of this so-called “unrevised” or “first-reported data” are discussed, and the data is compared with standard “fully revised” data using Granger causality tests. For the purposes of real-time forecasting, as well as comparing professional forecasts with traditional econometric...

ly ovarioles spit out oocyte-containing cysts “like a sausage machine,” says Daniel St. Johnston. In the process, the cysts are endowed with a clearly defined anterior-posterior polarity axis based on the posterior positioning of the oocyte. “The [axis] is hardwired into the geometry of the ovary,” says St. Johnston. “What we’re describing is the mechanism that transmits this.” That mechanism i...