This paper presents pathChirp, a new active probing tool for estimating the available bandwidth on a communication network path. Based on the concept of “self-induced congestion,” pathChirp features an exponential flight pattern of probes we call a chirp. Packet chips offer several significant advantages over current probing schemes based on packet pairs or packet trains. By rapidly increasing ...

There is significant variation in how ophthalmologists treat children with congenital obstructions of the nasolacrimal ducts. In the United States, some perform an in-office probing procedure on infants, whereas many prefer to wait until after 1 year of age when more than 90% of the obstructions will have resolved spontaneously. Whether or not to instruct parents to massage the lacrimal sac and...

Transcriptomics experiments and computational predictions both enable systematic discovery of new functional RNAs. However, many putative noncoding transcripts arise instead from artifacts and biological noise, and current computational prediction methods have high false positive rates. I discuss prospects for improving computational methods for analyzing and identifying functional RNAs, with a...

We deform the AdS/CFT Correspondence by the inclusion of a non-supersymmetric scalar mass operator. We discuss the behaviour of the dual 5 dimensional supergravity field then lift the full solution to 10 dimensions. Brane probing the resulting background reveals a potential consistent with the operator we wished to insert. e-mail: [email protected], [email protected], n.evans@hep....

As distributed systems continue to grow in size and complexity, scalable and cost-effective techniques are needed for performing tasks such as problem determination and fault diagnosis. We address these tasks using probes, or end-to-end test transactions, which gather information about system components (e.g., using IBM’s EPP technology). Effective probing requires minimizing the cost of probin...

Introduction: One of the most common problems we confront in orthodontic therapy is periodontal diseases. Initial factor which causes these diseases is colonization of anaerobic microorganisms in subgingival plaque. Technically, local environmental changes related to orthodontic band and brackets may influence the bacterial species in periodontal plaque. However, it seems necessary to assess va...

Dynamic assessment (DA) which is rooted in Vygotsky’s (1978) sociocultural theory involves the integration of instruction and assessment in a dialectical way to achieve two main purposes: enhancing learners' development and understanding about their learning potential. However, the feasibility and appropriateness of mediation are two main concerns of DA. The former is concerned with the applica...

Exploiting the dependence of the refractive index on carrier concentration and temperature, various infrared laser probing techniques enable the experimental analysis of the carrier and heat flow distributions in the interior of semiconductor devices. In this work we present a complete numerical simulation sequence for the whole measurement process. It includes the electrothermal device simulat...

With rapid changes in technology and intense competition in the business environment the importance of cultivating and sustaining foresight in multiple-product innovation firms has been propelled to unprecedented heights. Yet, research on the processes through which such firms mobilise foresight in their working environment remains scarce. This paper seeks to explore the different processes thr...