Q: Frank Quattrone , the former Credit Suisse First Boston technology investment-banking guru , reportedly pleaded not guilty Tuesday to charges of obstruction of justice and witness tampering .

NEW YORK - ( Dow Jones ) - Former star investment banker Frank Quattrone pleaded not guilty Tuesday to criminal charges of obstruction of justice and witness tampering .

Please tell me if the sentences above mean the same.
A: yes
Q: He told the jury Stubbs is a " cold , calculating killer . "

District Attorney Dave Lupas reminded jurors that Stubbs is , " a cold , calculating killer " .

Please tell me if the sentences above mean the same.
A: yes
Q: " The discovery that the MAP bug is present in the vast majority of Crohn 's sufferers means it is almost certainly causing the intestinal inflammation , " it said in a statement .

The researchers say that the fact the MAP bug is present in the vast majority of Crohns sufferers means it is almost certainly causing the intestinal inflammation .

Please tell me if the sentences above mean the same.
A:
yes