OBJECTIVE To assess whether bed bug infestation was linked to sleep disturbances and symptoms of anxiety and depression. DESIGN Exploratory cross-sectional study. SETTING Convenience sample of tenants recruited in apartment complexes from Montreal, Canada. PARTICIPANTS 39 bed bug-exposed tenants were compared with 52 unexposed tenants. MAIN OUTCOME MEASURES The effect of bed bug-exposed...

H osted cloud computing has signif icantly lowered the barrier for creating new networked services. Likewise, experimental facilities such as the Global Environment for Network Innovations (GENI; www. geni.net) let researchers perform largescale experiments on a “slice” of shared infrastructure. By letting tenants share physical resources, virtualization is a key technology in these infrastruct...

Physical isolation provides tenants in a cloud with strong security guarantees, yet dedicating entire machines to tenants would go against cloud computing’s tenet of consolidation. A fine-grained isolation model allowing tenants to request fractions of dedicated hardware can provide similar guarantees at a lower cost. In this work, we investigate the dynamic provisioning of isolation at various...

PURPOSE To assess the effectiveness of a pilot integrated pest management (IPM) program in controlling cockroaches in an apartment complex, without pesticide sprays. METHODS A brief educational session and booklet were provided to tenants. Non-spray pest control methods were promoted. A telephone questionnaire was administered at pre- and post-test to assess knowledge, attitudes and practices...

We study the house allocation with existing tenants model (introduced by Abdulkadiroğlu and Sönmez, 1999) and consider rules that allocate houses based on priorities. We introduce a new acyclicity requirement for the underlying priority structure which is based on the acyclicity conditions by Ergin (2002) and Kesten (2006) for house allocation with quotas and without existing tenants. We show t...

Cloud computing realises the vision of utility computing. Tenants can benefit from on-demand provisioning of computational resources according to a pay-per-use model and can outsource hardware purchases and maintenance. Tenants, however, have only limited visibility and control over network resources. Even for simple tasks, tenants must resort to inefficient overlay networks. To address these s...

Energy accounting plays a crucial role in optimizing data center energy efficiency. Nonetheless, in a multi-tenant data center, it is challenging to fairly account for nonIT energy on an individual tenant basis, because each non-IT system (e.g., power supply and cooling) is shared by multiple tenants and only the system-level non-IT energy consumption can be measured. Existing policies, e.g., p...