Results 151 to 160 of about 654,936 (181)

A novel perspective on dissemination: somatic metastasis of germ cell tumors from the central nervous system. [PDF]

open access: yesDiscov Oncol
Qi SP   +10 more
europepmc   +1 more source

Incidental floating aortic mass as the initial presentation of primary aortic sarcoma. [PDF]

open access: yesBMJ Case Rep
de Jorge-Huerta L   +3 more
europepmc   +1 more source

From the Arrow of Time to the Arrow of Life

Earth, Moon, and Planets, 2006
Astrobiology, like many (but not all) sciences, must take into account questions of the “Why?”, “Where?”, “How?” and “When?” type. In this introductory chapter, we explain why, in this book, we will only consider two of these questions that are, moreover, deeply interrelated. Chronology is by definition related to the “when?” question but as soon as we
Gargaud, Muriel, Reisse, Jacques
openaire   +3 more sources

Home - About - Disclaimer - Privacy