Premenstrual dysphoric disorder (PMDD) is a severe, sometimes disabling extension of premenstrual syndrome (PMS). Although regular PMS and PMDD both have physical and emotional symptoms, PMDD causes extreme mood shifts that can disrupt your work and damage your relationships.remenstrual dysphoric disorder (PMDD) is a severe, sometimes disabling extension of premenstrual syndrome (PMS). Although regular PMS and PMDD both have physical and emotional symptoms, PMDD causes extreme mood shifts that can disrupt your work and damage your relationships.
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OpenStack, which is freely available under the Apache 2.0 license, is often referred to in the media as the Linux of the Cloud and is compared to Eucalyptus and the Apache CloudStack project, two other open source cloud initiatives. OpenStack has a modular architecture that currently has eleven components: Nova-provides virtual machines (VMs) upon demand. Swift-provides a scalable storage system that supports object storage. Cinder-provides persistent block storage to guest VMs. Glance-provides a catalog and repository for virtual disk images.