Hewlett-Packard

About: Hewlett-Packard is a company organization based out in Palo Alto, California, United States. It is known for research contribution in the topics: Signal & Substrate (printing). The organization has 34663 authors who have published 59808 publications receiving 1467218 citations. The organization is also known as: Hewlett Packard & Hewlett-Packard Company.

Technological Networks and the Spread of Computer Viruses

Abstract: Malicious computer software in the form of viruses and worms continues to plague modern information networks. What strategies are on the horizon for controlling the digital pestilence? In their Perspective, [ Balthrop et al .][1] survey the structure of computer networks and analyze their epidemiological characteristics. The most effective strategy may turn out to be a form of speed limit in which the rate of new network connections is controlled. A throttling mechanism of this sort would slow the spread of computer infections while leaving normal network traffic unhampered. [1]: http://www.sciencemag.org/cgi/content/full/304/5670/527

Bridging and Stuck-At Faults

Abstract: The commonly used stuck-at fault fails to model logic circuit shorts. Bridging faults are defined to model these circuit mal-functions. This model is based on wired logic which is a characteristic of many logic families such as resistor-transistor logic (RTL), diode transistor logic (DTL), emitter-coupled logic (ECL), etc. It does not apply to TTL circuits. The model also limits to fan-out-free leads.

Crowdsourcing, attention and productivity

Abstract: We show through an analysis of a massive data set from YouTube that the productivity exhibited in crowdsourcing exhibits a strong positive dependence on attention, measured by the number of downloads. Conversely, a lack of attention leads to a decrease in the number of videos uploaded and the consequent drop in productivity, which in many cases asymptotes to no uploads whatsoever. Moreover, short-term contributors compare their performance to the average contributor's performance while long-term contributors compare it to their own media.

Method and system for monitoring vital signs

Abstract: A portable hand-held monitor (1) for monitoring vital signs is connected, via a single connector (7), with a cable (9). This cable ends up in a combiner (10) which, in turn, receives plugs (12a to 12d) leading, via cables (11a to 11d), to single sensors or transducers applied to a patient. Portable hand-held monitor (1) comprises a display (3) and internal memory means, in order to store recorded vital signs and to transmit them to a remote computer later on. As only a single cable (9) is required for connection with combiner (10), patient monitoring becomes quite easy if the combiner (10), cable (9) and the associated sensors and interconnection cables are left at or near the patient. In this case, a plug (8) connected with cable (9) has simply to be inserted into connector (7), in order to start data acquisition. The same simple approach may be used to monitor the next patient, and so on.