The re la tion be tween chips, bits and frames er ror rates in the Ad di tive White Gaussi an Noise (AWGN) chan nel for a Di rect Se quence Spread Spec trum (DSSS) sys tem, in Mul ti ple Ac cess In ter fer ence (MAI) con di tions is eval u ated. A sim ple er ror-correction code (ECC ) for the Frame Er ror Rate (FER) eval u a tion is used. 64 bits (chips) Pseudo Noise (PN) se quences are em ploy...

RECT SPECTIt( )PHOTOMETRY of serum bihrubin implies the det ation of Serum brilirubin at or near its absorption maxiumuni at m l)y means of a spectrophotometer calibrated with bilirubin ndards, with a correction for the presence of hemolysis intmoed. A spectrophotomnetric method for hilirubin evaluation has three antages: 1. It serves as a check on methods that employ the van deli Bergh gent. 2...

Passwords are inherently vulnerable to dictionary attacks, but are quite secure if guessing attempts can beslowed down, for example by an online server. If this server gets compromised, however, the attacker can againperform an offline attack. The obvious remedy is to distribute the password verification process over multipleservers, so that the password remains secure as long as no...

Cytotox ic T-cel ls were derived from the per i toneal cavity of a C 5 7 B L / 6 mouse immunized with B A L B / c sarcoma Meth A and from the sp leens of B A L B / c x C 5 7 B L / 6 F1 (hereaf ter cal led CB6F1) mice immunized with B A L B / c leukemia R L ~ I . The cel ls were cu l tured in inter leukin 2 and c loned by limiting di lut ion, and their speci f ic i ty was determined by d i rect ...

Sum frequency generation (SFG) vibrational spectroscopy and high-pressure scanning tunneling microscopy (HP-STM) have been used in combination for the first time to study a catalytic reaction. These techniques have been able to identify surface intermediates in situ during benzene hydrogenation on a Pt(111) single-crystal surface at Torr pressures. In a background of 10 Torr of benzene, STM is ...

We enumerate a variety of ways to extend both stat i st i cal and si gnature-based i ntrusi on-detect i on anal ysi s techni ques to moni tor network tra c. Speci cal l y, we present techni ques to anal yze TCP/IP packet streams that ow through network gateways f or si gns of mal i ci ous act i vi ty, nonmal i ci ous f ai l ures, and other except i onal events. The i ntent i s to demonstrate, b...

Several arthropod species are important vectors of pathogens that cause disease in hu‐ mans, animals, and plants, including protozoa, nematodes, bacteria, and viruses. Arthro‐ pods are also pests competing with humans for food and parasitize farm animals, decreasing their productivity. Historically, arthropod pests and disease vectors affecting public health, crop yields, and livestock producti...

This paper presents a new approach for com­ puting posterior probabilities in Bayesian nets, which sidesteps the triangulation prob­ lem. The current state of art is the clique tree propagation approach. When the underlying graph of a Bayesian net is triangulated, this approach arranges its cliques into a tree and computes posterior probabilities by appropri­ ately passing around messages in th...

which she received the bite. The burning pain which resulted from the bite compelled her to return home, where she was treated without effect for more than two hours by the native quacks with all sorts of charms (munturs) ; but, as the symptoms of poisoning gradually became worse, her friends thought it expedient to have recourse to the English treatment, and accordingly brought her at 12 noon ...

One of the main approaches we have for studying the progressive divergence of understandings around a risk issue is that of social risk amplification. This article describes a case study of a particular environmental contaminant, a chemical flame retardant that could be interpreted as having produced a risk amplifying process. It describes in particular how a group of industrial organizations a...