The present paper describes the success, the methods (mental, informal written, standard algorithm) and the strategies of informal written arithmetic to be observed when 300 elementary students worked ...

When applied to panoramic images, an extended subtraction method is helpful in monitoring changes around dental implants, according to a new study in Clinical Oral Implants Research (June 2, 2011).

AbstractWe present an objective method to remove the stellar continuum emission from narrow–band images to derive emission–line images. The method is based on the skewness of the pixel histogram of ...