Implementation of cleaner production: A ten-year retrospective on benefits and difficulties found

Higher Homotopy Hopf Algebras Found: A Ten Year Retrospective

Higher Homotpy Hopf Algebra Found: a Ten Year Retrospective

The search for higher homotopy Hopf algebras (known today as A∞-bialgebras) began in 1996 during a conference at Vassar College honoring Jim Stasheff in the year of his 60th birthday. In a talk entitled ”In Search of Higher Homotopy Hopf Algebras”, I indicated that a DG Hopf algebra could be thought of as some (unknown) higher homotopy structure with trivial higher order structure and deformed ...

The Gestational Trophoblastic Diseases: A Ten Year Retrospective Study

Background Gestational trophoblastic disease (GTD) defines a heterogenenous group of interrelated lesions that arise from the trophoblastic epithelium of the placenta. There are several histologically distinct types of GTD: hydatiform mole (complete or partial), persistant/invasive gestational trophoblastic neoplasia (GTN), choriocarcinoma and placenta site trophoblastic tumors. The aim of this...

Ten-year retrospective review.

NANCY W. DICKEY, MD A bit more than a decade ago, the country was bombarded by a series of headlines announcing tragic medical errors that caused pain, increased costs, and even death to the patients involved. As president of the American Medical Association (AMA), I was asked repeatedly about how Bthe best health care system in the world[ could allow mistakes like the ones being reported to oc...

on the relationship between actual vs. perceived difficulties of a text and iranian efl learners reading anxiety

abstract this study examines the relationship between reading anxiety and difficulty of texts as well as the relationship between reading anxiety and students perceived difficulty of the texts. since difficulty is a relative concept, i limited its definition by sticking to the readability formula. we also took students perceived difficulty levels into account. therefore, in the present study, ...