CONTEXT Hyperglycemia is the hallmark of type 2 diabetes mellitus, and its prevention will go a long way in managing the disease and its associated complications. Reduction of postprandial hyperglycemia through retarding carbohydrates digesting enzymes is one of the major therapeutic approaches used in the management of diabetes. OBJECTIVE The aim of the present study was to investigate the a...

The Domain Name System (DNS) is a hierarchical naming system that is built on a distributed database for computers, services, or any other resource connected to the Internet or a private network. It translates the domain names meaningful to humans into the numerical identifiers associated with the networking equipment for the purpose of locating and addressing these devices worldwide [1]. The j...

Given that the global DNS system, especially at the higher root and top-levels, experiences significant query loads, we seek to answer the following questions: (1) How does the choice of DNS caching software for local resolvers affect query load at the higher levels? (2) How do DNS caching implementations spread the query load among a set of higher level DNS servers? To answer these questions w...

DNS implementers face numerous choices in architecting DNS resolvers, each with profound implications for security. Absent the use of DNSSEC, there are numerous interim techniques to improve DNS forgery resistance. We explore how different resolver architectures can affect the risk of DNS poisoning. The contributions of this work include: (A) We create a comprehensive, accurate model of DNS poi...

Direct numerical simulation (DNS) has become a powerful tool in studying fundamental phenomena of laminar-turbulent transition of high-speed boundary layers. Previous DNS studies of supersonic and hypersonic boundary layer transition have been limited to perfect-gas flow over flat-plate boundary layers without shock waves. For hypersonic boundary layers over realistic blunt bodies, DNS studies ...

Cambridge Hospital at Home (CH@H) provides 24-h nursing in a patient's own home to patients requiring terminal and palliative respite care. To investigate views of the service, we surveyed all GPs and district nurses (DNs) in the catchment area of the scheme. Responses were received from 85% of DNs and 65% of GPs. The majority of DNs (93%) and GPs (57%) had patients referred to CH@H, whereas 90...

The Domain Name System (DNS) has been the naming service of the Internet for more than 20 years. It is the foundation of virtually all other distributed service. The deficiencies of DNS with respect to performance, availability, and reliability are well known. We want to systematically improve DNS by (1) measuring DNS performance, (2) evaluating past proposals, and (3) try to come up with a new...

We design DNS-sly, a counter-censorship system which enables a covert channel between a DNS client and server. To achieve covertness and deniability in the upstream direction, DNS-sly applies user personalization, adapting to individual behaviors. In the downstream direction, it utilizes CDN-related DNS responses to embed data, while retaining statistical covertness. We show DNS-sly achieves do...

Remote service discovery refers to discovering desired services in given remote (i.e., non-local) DNS domains. This document describes remote service discovery in the Service Location Protocol (SLP) via DNS SRV. It defines the DNS SRV Resource Records for SLP Directory Agent services, discusses various issues in using SLP and DNS SRV together for remote service discovery, and gives the steps fo...