As opposed to hybrid automatic repeat request with incremental redundancy (HARQ-IR) that all the resources are occupied resend redundant information, cross-packet HARQ (XP-HARQ) allows introduction of new information into retransmissions substantially exploit remaining resources. This letter provides a profound investigation outage performance XP-HARQ. In particular, exact expression XP-HARQ is...

Agile methods are a response to more rigorous and traditional approaches to software development which are perceived to have failed both customers and software development practitioners. eXtreme Programming (XP) is an example an agile method and we report on an ethnographic study of XP practice carried out in a small company developing Web-based intelligent advertisements. We identify five char...

Let Xp = Gp/Kp be homogeneous spaces (Kp a compact subgroup of a locally compact group Gp) with dimension parameter p such that the double coset spaces Gp//Kp can be identified with some fixed space X . Then we obtain projections Tp : Xp → X , and for a given probability measure ν ∈ M(X) there exist unique ”radial”, i.e. Kp-invariant measures νp ∈ M1(Xp) with Tp(νp) = ν and associated radial ra...

Our team was split geographically. One team was working on an embedded application. The success of XP on an earlier, similar project, led management to decide to do XP with some members from the previous team. The embedded developers were convinced that XP would not work for hardware or firmware development. The GUI team used XP from the start. The firmware team chose to use a form of iterative...

AIMS To describe a case of xeroderma pigmentosum (XP) in a middle-aged African-American woman, and to review pertinent literature on this rare clinical scenario. METHODS Case report and English literature review related to XP in black patients. RESULTS A 34-year-old African-American woman diagnosed with XP with first cutaneous squamous cell carcinoma (SCC) at age 23 years progressed to deve...

Specific mutations in the XPD subunit of transcription factor IIH result in combined xeroderma pigmentosum (XP)/Cockayne syndrome (CS), a severe DNA repair disorder characterized at the cellular level by a transcriptional arrest following UV irradiation. This transcriptional arrest has always been thought to be the result of faulty transcription-coupled repair. In the present study, we showed t...

Xeroderma pigmentosum (XP) complementation group F was first reported in Japan and most XP-F patients reported to date are Japanese. The clinical features of XP-F patients are rather mild, including late onset of skin cancer. Recently a cDNA that corrects the repair deficiency of cultured XP-F cells was isolated. The XPF protein forms a tight complex with ERCC1 and this complex functions as a s...