... should have killed him, they could not do it for pity, and let him go, and they cut the eyes and tongue out of a deer that they might carry them to the old man as a token. The youth wandered on, ... home again, and his father inquired: ‘My son, what have you learnt?’ he answered: ‘Dear father, I have this year learnt what the frogs croak.’ Then the father fell into the mos...
Ngày tải lên: 26/01/2014, 05:20
... being found in the three domains of life: the Bacteria, the Eukarya and the Archaea. Furthermore, although there are mechanistic parallels, even within a given domain of life, the way origins ... forms of DnaC [14]. Rather the role of ATP in the reaction is to serve as a switch that controls the activity of the helicase. The ATP bound form of DnaC severely inhibits the...
Ngày tải lên: 07/03/2014, 21:20
THE VALLEY OF SILENT MEN A STORY OF THE THREE RIVER COUNTRY pdf
... to the queer, chuckling notes of their honeymooning and the flutter of their wings as they darted out now and then in play close to his window. And then suddenly he heard the sharp snap of their ... lazily out from the shore, their long sweeps glinting in the sun, their crews singing wildly and fiercely their beloved Chanson des Voyageurs as their faces turned to the adventur...
Ngày tải lên: 22/03/2014, 18:20
Lịch sử Vật lý thế kỉ 20.pdf
... hướng sang tây. Một thời gian sau, mỗi hạt trong chúng đi qua một máy dò hạt đo spin theo hướng bắc-nam. Theo cơ học lượng tử, hàm sóng hạt độc thân cho mỗi hạt là sự pha trộn ngang nhau của ... ngược nhau theo chiều đông tây, thì sự vướng víu lượng tử phát biểu rằng mối liên hệ đó vẫn tiếp tục ngay cả khi hai hạt ở cách xa nhau. Thí dụ, nếu spin của một hạt sau đó được đo theo hướng...
Ngày tải lên: 10/08/2012, 11:27
The Fifth Discipline.pdf
... "By the time they are 30, a few are on the "fast track" and the rest 'put in their time' to do what matters to them on the weekend. They lose the commitment, the sense ... third year, the last year of rapid growth. Then they improved during the downturn that followed; but then they grew worse again. Over the entire ten-year history of the fir...
Ngày tải lên: 31/08/2012, 12:32