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...) under the assumptions of homoscedasticity and heteroscedasticity without computing the value of the variance ratio itself.   I would be grateful if you could instruct me how to calculate the variance ratio of Lo and Mackinlay (1988) and Chow and Denning (1993)     Waiting eagerly for your reply. Amira Akl Ahmed [[alternative HTML version deleted]]

Hi all I am using postfix 2.8 with dovecot-1.2.17-0_116.el5 on cento 5.7 server . when I changed smtp port from 25 to 587 from postfix configuration my mail server stops to receive emails. I think it sounds strange and I don't understand why this happen any one can help me Regards

...user = root socket listen { client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } } } dict { #quota = mysql:/etc/dovecot-dict-quota.conf } ## ## Plugin settings ## plugin { } Amira Othman Server Administrator <http://www.cairosource.com/> www.cairosource.com 6 EL Nil EL Abyad, Mohandiseen Cairo, Egypt Direct: +2 02 3303 7175 Mobile: +2 012 220 4165 The information transmitted is intended solely for the individual or entity to which it is addressed...

...etup mail server .Everything is working fine sending and receiving but when connecting through any mail client I only can send mails but the received mails I can't read them although they are already received on the server and there is no problems in mail log file .Any one can help me?? Amira Othman Server Administrator <http://www.cairosource.com/> www.cairosource.com 6 EL Nil EL Abyad, Mohandiseen Cairo, Egypt Direct: +2 02 3303 7175 Mobile: +2 012 220 4165 The information transmitted is intended solely for the individual or entity to which it is addressed...

I am using ISPConfig 3 ,postfix,dovecot and mysql the problem is that I receive mail on server but can't get it through outlook and when check using webmin I found that it reads form location different than what is written in dovecot Regards Amira Othman Server Administrator <http://www.cairosource.com/> www.cairosource.com 6 EL Nil EL Abyad, Mohandiseen Cairo, Egypt Direct: +2 02 3303 7175 Mobile: +2 012 220 4165 The information transmitted is intended solely for the individual or entity to which it is addressed...

Anyone familiar with pymol? We're getting an error I find references to from a few years ago when we try to run remotely on a headless server. I can run it fine on my machine (CentOS 6.3, NVidia video), and on another person's workstation remotely, with other make video, but the server's got a Matrox - which shouldn't matter, since I'm running this after ssh -Y. pymol yum