In this paper, we study a peer-to-peer media streaming system with the following characteristics: (1) its streaming capacity grows dynamically; (2) peers do not exhibit serverlike behavior; (3) peers are heterogeneous in their bandwidth contribution; and (4) each streaming session may involve multiple supplying peers. Based on these characteristics, we investigate two problems: (1) how to assig...

Buffered coscheduling is a distributed scheduling methodology for time-sharing communicating processes in a distributed system, e.g., PC cluster. The principle mechanisms involved in this methodology are communication buffering and strobing. With communication buffering, communication generated by each processor is buffered and performed at the end of regular intervals (or time slices) to amort...

Acid infusion studies were performed in nephrectomized rats and dogs with either intact parathyroid glands (intact) or after thyroparathyroidectomy (thyroparathyroidectomized [TPTX]) to determine the role of parathyroid hormone (PTH) in extrarenal disposal and buffering of acutely administered acid. 29 intact rats given 5 mM/kg HCl and 6 intact dogs given 7 mM/kg HCl developed severe metabolic ...

Communication is essential to members of a society not only for the expression of personal information, but also for the protection from environmental threats. Highly social mammals have a distinct characteristic: when conspecific animals are together, they show a better recovery from experiences of distress. This phenomenon, termed 'social buffering', has been found in rodents, birds, non-huma...

The subjective quality of video streaming has been studied for typical mobile setups, where bad radio conditions give rise to buffering effects (initial buffering and rebuffering). The study included a variety of transport bit rates, frame rates, types of content and buffering/rebuffering conditions. The properties of interruptions having the greatest impact on the perceived quality were found ...

A wearable computing has been proposed as an alternative of the best mobile computing interfaces and devices. A digital garment acts as a key element of wearable computing. We will apply digital yarn link as material of data communications on purpose to take advantage of a digital garment. This paper proposes the link buffering architecture and the transmission processes for peer-to-peer (P2P) ...

Chemical Buffering Extracellular buffers, including plasma proteins, phosphates, and bicarbonate, are the earliest defense against acidosis. The most prominent extracellular buffer is bicarbonate, which is highly abundant and acts as a dynamic buffer by independently regulating Pco2 through changes in alveolar ventilation. This feature increases buffering capacity by more than 10-fold. Bufferin...

Malignant tumours are characterised by a low, acidic extracellular pH (pHe) which facilitates invasion and metastasis. Previous research has proposed the potential benefits of manipulating systemic pHe, and recent experiments have highlighted the potential for buffer therapy to raise tumour pHe, prevent metastases, and prolong survival in laboratory mice. To examine the physiological regulation...