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Oregon has been using open-graded hot mix on its roadway system since the late 1970s. Because of the performance of these early jobs (and the continued good performance of these mixes), open-graded hot mix has been the preferred choice for a surface course on Oregon highways. The following are described with respect to the use of these mixes in Oregon: historical perspective; design, including mix and structural design; construction, including quality control/quality assurance considerations; and maintenance and rehabilitation practices with porous pavements. The continued success of the use of these materials from both a performance and a public acceptance standpoint indicates they will be the pavement of choice in Oregon for the foreseeable future.

A variety of materials have been used for wearing surfaces on steel bridge decks. The requirements for these paving materials are identified, the various asphalt-based materials that have been used are described, a description of the construction process is provided, and the expected field performance and maintenance requirements for the most common materials used are discussed. The selection of the wearing surface should be based on life-cycle costs, not just initial construction costs. Life-cycle-cost calculations must include consideration of initial construction costs, expected life, maintenance and rehabilitation costs, and user delay costs associated with the removal and replacement of failed surfaces. The reliability, durability, and skid resistance of the wearing surface are very important to prolongation of the life of the surfacing and minimization of delays to users caused by frequent replacements.

Background: The aim of the present study was to investigate the role of potential clinical risk factors in the causation of peri-operative stroke associated with carotid endarterectomy. With the change in carotid endarterectomy practice from the use of a shunt to high-dose thiopental for cerebral protection (a previously undocumented method), it was essential to identify accurately the causes of all peri-operative strokes. Methods: A prospective audit was undertaken of 1000 carotid endarterectomies in which the causes and pathology of all peri-operative strokes were documented. The roles of advanced age, female gender, hypertension, previous stroke, contralateral carotid stenosis > 70%, and contralateral carotid occlusion as potential causes of peri-operative stroke were defined. Results were statistically analysed using odds ratio and Fisher’s exact test. Results: None of the potential risk factors was statistically significant for peri-operative stroke. Female gender was associated with a significant risk of peri-operative stroke due to operative site thrombosis. Complications at the endarterectomy site were the commonest cause of stroke. Conclusions: Prospective audit is a useful tool for identifying causes of peri-operative stroke and indicating the need for modifications to surgical clinical management which might improve outcomes for carotid endarterectomy.

Open-graded hot mixes have been used as road surfaces in Oregon since 1978. Since 1989, they have been used on all Interstate and primary highways in western Oregon; they are used less extensively in eastern Oregon. The Oregon Department of Transportation (ODOT) has pay-adjustment factors for dense-graded mixes based on an evaluation of constituents, including asphalt content, gradation, compaction, and moisture content. As a part of a larger research effort, a survey was administered to various national and international agencies inquiring about their knowledge of and experience with porous pavements. Administration of this survey was sponsored by ODOT; the purpose of the larger research effort was to develop an improved specification for porous pavements that would contain pay incentives and disincentives. Findings from this survey are reported. Of the 28 individuals contacted, responses were received from 24, providing an 86 percent response rate. Because this study was conducted to determine appropriate pay factors for open-graded mixtures, the survey was designed to learn about how other agencies were dealing with specifications and adjustment factors for porous pavements. The findings from the survey are presented with respect to (a) the respondents’ experiences with construction of open-graded asphalt during the past 5 years, (b) the factors that contribute most to the performance of open-graded mixes, (c) the most common types of failures for these mixes, (d) the primary causes of failures of the various types, and (e) the use of specifications that contain provision for pay adjustment.

Preventive maintenance techniques are considered useful in extending the life of a pavement if applied at the right time. Discussed here is a framework for a process that can be used to select the proper maintenance strategies for different distress types in asphalt pavements, depending on traffic level and environment. Maintenance treatments addressed include only crack seals, fog seals, slurry seals, microsurfacings, chip seals, thin asphalt concrete overlays, and other thin surface treatments. Types of distress considered include roughness, rutting, fatigue cracking, longitudinal cracking, raveling, weathering, and bleeding. Decision trees, based on the authors' experiences, are presented to illustrate the process in selecting appropriate maintenance treatments. A framework for evaluating the cost-effectiveness of the various maintenance treatments is presented. Existing methods for evaluating cost-effectiveness of maintenance are discussed together with their strengths and weaknesses. An example of cost-effectiveness for different maintenance treatments is also briefly presented.

The need for reoperation caused by recurrence of coronary artery disease is becoming increasingly common. Although reoperation is more difficult and time-consuming, with careful surgical technique it can be carried out with the same mortality as that described by many units for primary coronary artery bypass grafting (1.2 – 2.0%). In the 172 patients described here, who had coronary artery reoperations between 1981 and 1990, there were two in-hospital deaths (1.2%). There were three postoperative bleeds which required return to theatre. No patient suffered a postoperative neurological deficit or postoperative myocardial infarction. These reoperations comprised 6.9% of the 2497 coronary artery operations carried out in the same period. Follow-up disclosed eight late deaths, from five-62 months after operation; all survivors claim to be symptomatically improved. Consideration should be given to the potential problems of reoperation when carrying out primary myocardial revascularisation.

Coastal Oregon has a severe shortage of quality construction aggregates. There is, however, an abundant supply of lower quality, or marginal, aggregates. In an attempt to use marginal aggregates, the feasibility of beneficiation with cement has been investigated. Specifically, the optimum cement contents to stabilize three marginal aggregates (Tyee sandstone, marine basalt, dredge spoil sand) were determined. The resilient modulus and fatigue life characteristics were measured for the aggregates stabilized at the optimum cement contents. The influence of moist curing time and wetting and drying or freezing and thawing cycling on the properties measured were evaluated. The results indicated the resilient moduli of all the materials tested increased with moist curing time. The resilient moduli of the stabilized aggregates were not affected by freezing and thawing cycling, however, the moduli were reduced after wetting and drying cycling. The fatigue life characteristics, expressed in terms of tensile stress versus number of load repetitions to failure, were not significantly different for the moist cured stabilized materials compared to the stabilized materials subjected to wetting and drying or freezing and thawing cycling. The resilient moduli and fatigue life properties measured were used to arrive at typical layer thicknesses and layer equivalencies for road sections employing the cement stabilized marginal aggregates. The results indicate beneficiation of marginal aggregates with cement is economically justifiable.

The suitability of asphalt emulsions for upgrading marginal aggregates has been evaluated. The aggregates tested included a high quality basalt, two low quality marine basalts, and a fine grained dune sand. Mix propertiesevaluated included diametral resilient modulus and diametral fatigue life for both as-compacted specimens and specimens conditioned by moisture exposure. Layered elastic design principles were used with the dynamic test results to develop layer equivalencies for emulsion treated marginal aggregates compared with hot mix asphalt concrete. The results indicate that beneficiation of marginal aggregate with asphalt emulsions should make acceptable paving mixes, particularly for low volume roads.

This paper presents the results of a laboratory study to investigate the effects of mixing moisture on mechanical properties of asphalt mixtures. The potential benefits of lime and Pavebond Special were also evaluated. The repeated load diametral test device was used to measure the mixture performance in terms of the resilient modulus, fatigue, and permanent deformation characteristics of laboratory specimens prepared with and without moisture (0, 1, and 3%) and with and without lime (1%) and Pavebond (0.5%). Mixtures were prepared that were representative of two projects for which considerable field data were available. One project utilized low quality and high absorptive aggregate and the other good quality aggregate. To evaluate the long-term durability of mixtures, they were tested before and after conditioning using the Lottman approach. The test results showed that inferior performance occurred for mixtures with 3% moisture but was most pronounced in mixtures with higher air-void contents. However, the mixtures with low quality and high absorptive aggregate showed improved performance at 1% moisture content, associated with their lower air-void contents, which may be due to absorbed moisture preventing asphalt absorption and the higher asphalt content of these mixtures. The addition of lime resulted in distinct improvement of performance for moist specimens from the project, which had good quality aggregate, but high air-void contents. However, neither additive showed substantial benefit for moist samples from the project with low quality aggregate and low air-void content.

One of the major difficulties in asphalt concrete pavement construction is the control of materials and the subsequent level of payment to contractors for materials not conforming to specifications. The effect of this noncompliance on pavement serviceability is not fully established; however, it frequently results in reduced payments to contractors, which, in turn, causes much controversy between the two parties. Specific mixture properties outside specification tolerance, which are accepted by most agencies through reduced payment include percent compaction, asphalt content, and mix gradation. The reduced payment used normally relies heavily on the experience and judgment of the agencies; therefore, there is often wide disparity in the pay adjustment factors used. The paper summarizes currently available techniques for estimating the modulus and fatigue life of asphalt mixtures and shows how these, together with existing failure criteria for fatigue and permanent deformation may be used to estimate the effects of changes in compaction on pavement life. Secondly, the results of extensive laboratory tests on asphalt mixtures from three projects in Oregon are reported. Tests were performed to evaluate the effect of mix variations (including density) on mix properties (modulus, fatigue life, and resistance to permanent deformation). Tests were run using both as-compacted and conditioned (vacuum saturated followed by freezing then heat soaking) specimens. The test used throughout was the ASTM Repeated Load Diametral Test (D 4123-82) modified slightly such that fatigue life could be evaluated. The results of the test program indicated that percent compaction (or void content) was the most significant factor affecting mix performance. An increase in void content is associated with a decrease in modulus, fatigue life, and resistance to permanent deformation. The result of the study findings was the development of new asphalt concrete compaction specifications for the state of Oregon. Not only does the Oregon Department of Transportation (DOT) now require a higher standard of compaction (91% of American Association of State Highway and Transportation Officials (AASHTO) T209 maximum specific gravity), but they have also spelled out clearly the penalties for not achieving density. (Author)

Before 1974, stripping in hot mix asphalt concrete was considered to be a relatively minor problem in Oregon. During the three-year period from 1974 to 1977, several problems were noted during and after construction of asphalt pavements. One of the major problems associated with asphalt pavements was its initial reduced resistance to raveling. This problem developed after the oil embargo in 1974. In recent years, problems with stripping and associated pavement deterioration have continued such that in 1983 amine-type antistrip agents were incorporated into over 20% of all projects constructed. The state of Oregon's specification (before 1984) attempts to ensure good performance of asphalt mixtures against stripping. For example, the determining factor as to the suitability of a particular mixture against stripping has been American Association of State Highway and Transportation Officials (AASHTO) T-165, index of retained strength (IRS). If the IRS of a mix at the design asphalt content is below 70% with the asphalt and aggregate to be used in the paving, an antistrip agent is used to satisfy this requirement. A 70% minimum resilient modulus ratio after vacuum saturation and freeze-thaw conditioning is used to determine the suitability of a particular mixture against stripping. This paper addresses the current problem of stripping in the state of Oregon. Field studies conducted in 1983 were designed to identify causes of recent raveling problems in central Oregon (high elevation and severe climate areas). The investigations involved field condition surveys and coring, reviewing project construction records, mix designs, and asphalt concrete test data (construction cores and compaction control test results), and numerous tests on cores obtained from the roadway. From the information collected, several factors were found to be contributing to the observed raveling and recommendations made for correcting these deficiencies have been included in the 1984 specifications.

Isoflurane depresses the number and amplitude of I waves of the motor-evoked potential produced by transcranial electrical stimulation of the motor cortex and thus affects components of the corticospinal volley that are believed to arise from Laminae III and V. This study extends these observations to sevoflurane (9 patients) and the two IV anesthetics, thiopental and propofol (10 sets of observations in 10 and 6 patients, respectively). The patients' ages ranged from 10 to 17 yr. Sevoflurane was administered to achieve end-tidal concentrations of 0.5%-3%. Thiopental and propofol were given as boluses of 5 mg/kg and 2 mg/kg, respectively, to patients anesthetized with nitrous oxide, fentanyl, midazolam, and a muscle relaxant. Sevoflurane had a depressant effect on I waves essentially similar to that of isoflurane; thiopental depressed I wave activity by an average of 33% (95% confidence interval: 20%-46%, P0.001) and propofol by 39% (95% confidence interval: 20%-40%, P0.001). With all three anesthetics, later I waves showed the most amplitude depression. The three anesthetics had qualitatively similar effects on I waves.Sevoflurane, thiopental, and propofol depress components of the corticospinal volley produced by transcranial electrical stimulation of motor cortex in a manner qualitatively similar to isoflurane. The findings indicate that anesthetics with primarily hypnotic actions suppress interneuronal activity in cerebral cortex.

[AlCl 3 (C 12 H 11 N)] cristallise dans C2/c avec a=15,072, b=13,398, c=14,603 A, β=102,95°, Z=8; affinement jusqu'a R=0,0455. La structure se compose d'unites moleculaires discretes, et ne presente aucune indication de liaison hydrogene. La longueur de la liaison Al-N de 1,983 A est typique d'une liaison simple

We have studied muon-produced hadrons from a deuterium target. The structure functions and the charge ratios are reported for neutrons; the transverse momentum and azimuthal distributions are reported for deuterons. The structure function for the neutron is similar to that of the proton. The charge ratio of produced hadrons follows the expectation of a simple spin-1/2 quark model. Transverse-momentum results agree with those at lower energy and are similar to those from hadron--hadron interactions. No azimuthal anisotropy is seen. (AIP)

The properties of the transverse momenta and angular distributions of hadrons produced in muon-proton scattering with first-order quantum-chromodynamics calculations. The quantum-chromodynamics prediction for the Q/sup 2/ dependence of the average hadron transverse momentum squared agrees with the data provided a constant term is added in quadrature to the prediction. This additive term is attributed to the intrinsic transverse momentum of the quarks in the nucleon and to the transverse momentum inherent in quark fragmentation.

We consider three broad classes of nonstandard models for b quark decay: (1) b → llq with charged or neutral leptons of arbitrary flavor; (2) b → l q q ; and (3) b → qa − where a − is a Higgs boson or hyperpion. For these classes of models we have calculated the charged energy fraction and the inclusive yields of electrons, muons, protons, and lambdas. We demonstrate that these model predictions are inconsistent with CLEO measurements at the γ (4S).

This paper reports measurements of the hadrons produced in the inelastic scattering of 147-GeV muons by protons and deuterons in an experiment carried out at Fermi National Accelerator Laboratory. Both the scattered muon and the hadrons were measured in a large spectrometer. Properties of the hadron spectra are presented for proton, deuteron, and neutron targets and compared with theoretical models and with hadron spectra from related processes. Emphasis is placed on the quark-parton model and the data are found to be in substantial agreement with it. The average transverse momentum of the hadrons with respect to the virtual photon direction shows no dependence on the muon scattering variables. The data display "jet behavior" of the inclusive hadrons comparable to that found in ${e}^{+}{e}^{\ensuremath{-}}$ annihilations.

Using the CLEO detector at the Cornell Electron Storage Ring, the authors have measured the leptonic branching fraction, B/sub mumu/, of the UPSILON(1S), UPSILON(2S), and UPSILON(3S) to be 2.7 +- 0.3 +- 0.3%, 1.9 +- 1.3 +- 0.5%, and 3.3 +- 1.3 +- 0.7%, respectively. Combining these values of B/sub mumu/ with previous measurements of the leptonic widths of these resonances, the authors find the total width of the UPSILON(1S), UPSILON(2S), and UPSILON(3S) to be 48 +- 4 +- 4, 27 +- 17 +- 6, and 13 +- 4 +- 3 keV.

A case of status epilepticus, resistant to conventional anti-epileptic treatment is described. Althesin rapidly abolished the epileptic activity, and control was achieved by a continuous infusion of Althesin.

We have studied the production of $\ensuremath{\rho}$ and $\ensuremath{\varphi}$ mesons from muon scattering on a liquidhydrogen target at 150 and 100 GeV. For the $\ensuremath{\rho}$ we observe a skewed mass distribution which becomes somewhat more normal with increasing ${Q}^{2}$ (the square of the four-momentum transferred from the muon), and an exponential distribution in $t$ (the square of the four-momentum transferred to the target proton) with a slope which is consistent with a slight decrease as ${Q}^{2}$ increases. The dependence of the cross section on ${Q}^{2}$ follows that of the square of the $\ensuremath{\rho}$ propagator with little contribution from longitudinal $\ensuremath{\rho}$ production. The angular distribution of the $\ensuremath{\rho}$ decay confirms the smallness of the contribution from longitudinal $\ensuremath{\rho}$ production at our energies. The cross section when extrapolated to ${Q}^{2}=0$ agrees with that measured in real photoproduction. The decay angular distribution of the $\ensuremath{\rho}$ decay shows that $s$-channel helicity is largely conserved, although we detect a helicity-single-flip contribution at the 10-15% level. Natural-parity exchange in the $t$ channel dominates, and the transverse and longitudinal amplitudes are found to be in phase. These characteristics are consistent with the diffractive nature of the vectordominance model. The $t$ distribution of $\ensuremath{\varphi}$ production is also exponential, although less steep than that for the $\ensuremath{\rho}$. We observe an elastically produced four-pion state at a mass of approximately 1600 MeV. We identify this state with the ${\ensuremath{\rho}}^{\ensuremath{'}}(1600)$, and find it to be produced with a distribution exponential in $t$.

We have studied the production of B mesons in e/sup +/e/sup -/ annihilations and present new measurements of the semileptonic branching fractions for B-meson decay. We find B(B..-->..e..nu..X) = 0.127 +- 0.017 +- 0.013 and B(B..--> mu nu..X) = 0.122 +- 0.017 +- 0.031, where the errors are statistical and systematic, respectively. The observed lepton momentum spectra from B decays are presented. From these spectra we find the mean hadronic mass (M/sub X/) recoiling against the detected lepton to be M/sub X/ = 2.2 +- 0.2 GeV/c/sup 2/. We have also observed an enhancement in the lepton yield from the continuum above BB-bar threshold. This enhancement is interpreted as continuum B production and is consistent with what is expected from the naive quark model.

A detailed investigation of the decay UPSILON(2S)..--> pi../sup +/..pi../sup -/UPSILON(1S) has been made from 128 000 UPSILON(2S) decays observed in the CLEO detector at the Cornell Electron Storage Ring (CESR). We find this branching ratio to be (19.1 +- 1.2 +- 0.6)%. The properties of the ..pi pi.. system have been studied using 491 exclusive events of the type UPSILON(2S)..--> pi../sup +/..pi../sup -/UPSILON(1S), UPSILON(1S)..-->..e/sup +/e/sup -/ or ..mu../sup +/..mu../sup -/. Assuming e-..mu.. universality we find B(UPSILON(1S)..--> mu../sup +/..mu../sup -/) = (2.84 +- 0.18 +- 0.20)%. A search for UPSILON(2S)..-->..etaUPSILON(1S) yields an upper limit of 1% at the 90% confidence level for this branching ratio. We have also searched for (UPSILON(2S) or UPSILON(3S))..--> pi../sup +/..pi../sup -/UPSILON(1S), UPSILON(1S)..-->..noninteracting particles.

A measurement is presented of the inclusive production of charged ${D}^{*}$ and neutral $D$ mesons from nonresonant ${e}^{+}{e}^{\ensuremath{-}}$ annihilation in the energy region near the $\ensuremath{\Upsilon}(4S)$ resonance. The momentum distribution shows a large contribution at high momenta as expected for heavy quark production. Comparison of the spectrum with several phenomenological models is made. The relative yields of the ${D}^{*}$ and $D$ mesons indicate that the charm cross section is dominated by the ${D}^{*}$ contribution.

We have searched in the decays of the ϒ(1S), ϒ(2S) and B mesons for the narrow state, γ, seen by the Mark II group in radiative ψ decay. We find the product branching fractions B[ϒ(1S) → γγ]·B[γ → K+K−], B[ϒ(2S) → γ γ]· B[γ → K+K−] and B[B → γX]·B[γ → K+K−] to be less than 2×10−4, 9×10−5 and 3×10−3, respectively at 90% confidence level. These limits constrain theoretical models if the γ is interpreted as a Higgs boson.

We report measurements made with the CLEO detector at the Cornell Electron Storage Ring (CESR) of the total cross section for ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\mathrm{hadrons}$ at the $\ensuremath{\Upsilon}(1S)$, $\ensuremath{\Upsilon}(2S)$, and $\ensuremath{\Upsilon}(3S)$, and in the nearby nonresonant continuum. We find $R=3.77\ifmmode\pm\else\textpm\fi{}0.06 (\mathrm{statistical}) \ifmmode\pm\else\textpm\fi{} 0.24 (\mathrm{systematic})$ for the ratio of the nonresonant hadronic cross section to the cross section for muon-pair production at a center-of-mass total energy $W=10.4$ GeV. For the leptonic decay widths ${\ensuremath{\Gamma}}_{\mathrm{ee}}$ of the $\ensuremath{\Upsilon}(1S)$, $\ensuremath{\Upsilon}(2S)$, and $\ensuremath{\Upsilon}(3S)$ we obtain 1.30\ifmmode\pm\else\textpm\fi{}0.05\ifmmode\pm\else\textpm\fi{}0.08, 0.52\ifmmode\pm\else\textpm\fi{}0.03\ifmmode\pm\else\textpm\fi{}0.04, and 0.42\ifmmode\pm\else\textpm\fi{}0.04\ifmmode\pm\else\textpm\fi{}0.03 keV, respectively.

$B$-meson decays to final states consisting of a ${D}^{0}$ or ${D}^{*\ifmmode\pm\else\textpm\fi{}}$ and one or two charged pions have been observed. The charged-$B$ mass is 5270.8 \ifmmode\pm\else\textpm\fi{} 2.3 \ifmmode\pm\else\textpm\fi{} 2.0 MeV and the neutral-$B$ mass is 5274.2 \ifmmode\pm\else\textpm\fi{} 1.9 \ifmmode\pm\else\textpm\fi{} 2.0 MeV.

We have observed the decay of the UPSILON(2S) into the UPSILON(1S), obtaining a branching ratio of 19.1 +- 3.1 +- 2.9% for the mode UPSILON(2S)..--> pi../sup +/..pi../sup -/UPSILON(1S). The di-pion mass spectrum peaks at large invariant mass, and the angular distribution of the di-pion system is consistent with s-wave production.

Results on the protron structure function, ${F}_{2}$, are presented for $0.3l{q}^{2}l80.0$ Ge${\mathrm{V}}^{2}$ and $10l\ensuremath{\nu}l200$ GeV. The results support the conclusions of earlier work at 97 and 147 GeV that scaling is violated. A new value for $R=\frac{{\ensuremath{\sigma}}_{S}}{{\ensuremath{\sigma}}_{T}}=0.44\ifmmode\pm\else\textpm\fi{}0.25$ has been obtained using all the Fermilab proton measurements.

We report measurements from CLEO detector of the rate of ..xi.. and ..lambda.. production in e/sup +/e/sup -/ interactions in the upsilon region. Hyperon production from the decay of the UPSILON(1S) is compared with continuum e/sup +/e/sup -/ data. The ratio of the production rates of ..lambda.. (and Lambda-bar) to K/sup 0/ (and K-bar /sup 0/) on the UPSILON(1S) is 0.21 +- 0.03, much larger than in the continuum, 0.07 +- 0.01. The ratios of the production rates of the ..xi.. and the ..lambda.. are comparable, 0.10 +- 0.02 (UPSILON(1S)) and 0.07 +- 0.02 (continuum). We discuss some implications of the data for gluon and quark fragmentation models.

The branching ratio of UPSILON(3S)..--> pi../sup +/..pi../sup -/UPSILON(1S) has been measured to be (4.9 +- 0.9 +- 0.5)%. The di-pion invariant-mass distribution for this decay is flatter than that for the decays UPSILON(2S)..--> pi../sup +/..pi../sup -/UPSILON(1S) and psi'..--> pi../sup +/..pi../sup -/psi.

Evidence is presented for a narrow meson resonance of mass 1970\ifmmode\pm\else\textpm\fi{}5\ifmmode\pm\else\textpm\fi{}5 MeV produced in continuum ${e}^{+}{e}^{\ensuremath{-}}$ annihilations at $\sqrt{s}$ of 10.5 GeV, and decaying into a $\ensuremath{\phi}$ and a charged $\ensuremath{\pi}$.

The EEG was continuously recorded on 43 patients who received Althesin. A basic pattern for this drug, typical of most general anaesthetic agents at a level of light surgical anaesthesia, was established. Four significant levels of change could be discriminated in the EEG following administration of incremental boluses of undiluted Althesin, reflecting deeper levels of anaesthesia. These ranged from a mild slowing of the dominant rhythms to burst-suppression activity at the deepest level reached with larger doses. The EEG demonstrated that althesin has a rapid onset and a short duration and that recovery is rapid and complete after continuous infusion.

Results on the nucleon structure function, $\ensuremath{\nu}{W}_{2}$, are presented for $0.2l~{q}^{2}l~50$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^{2}$ and $5l~\ensuremath{\nu}l~130$ GeV. They were obtained by scattering 147-GeV positive muons inelastically from a liquid deuterium target.

The inclusive branching fraction for B-meson decay into D/sup 0/ mesons and the momentum spectrum of the D/sup 0/'s have been measured. 0.8 +- 0.2 +- 0.2 D/sup 0/ per B decay was found. The shape of the spectrum suggests an interesting picture of B-meson decay.

Measurements have been made of the inclusive scattering of 96, 147, and 219 GeV muons from hydrogen, and of 147 GeV muons from deuterium. Results are presented for the nucleon structure function F/sub 2/(x,Q/sup 2/) (equivalent..nu..W/sub 2/(x,Q/sup 2/)) for 10 < ..nu.. < 200 GeV and 0.2 < Q/sup 2/ < 80 GeV/sup 2/. The value of F/sub 2/ rises with Q/sup 2/ at small x, and falls with Q/sup 2/ at large x, in agreement with the ideas of quantum chromodynamics. An average value of the ratio sigma/sub L//sigma/sub T/ equivalent R = 0.52 +- 0.35 has been obtained for the region 0.003 < x < 0.10 and 0.4 < Q/sup 2/ < 30 GeV/sup 2/. The values of F/sub 2/ from this experiment have been combined with those from other charged-lepton scattering experiments to determine moments of the structure functions. The variation with Q/sup 2/ of these moments is used to derive values for ..lambda.., taking into account corrections up to second order in ..cap alpha../sub s/. The fit to the data is very good.

Cross sections for diffractive rho muoproduction in hydrogen are presented for 90 GeV

The charged multiplicity has been measured at the UPSILON(4S) and a value of 5.75 +- 0.1 +- 0.2 has been obtained for the mean charged multiplicity in B-meson decay. Combining this result with the measurement of prompt letpons from B decay, the values 4.1 +- 0.35 +- 0.2 and 6.3 +- 0.2 +- 0.2 are found for the semileptonic and nonleptonic charged multiplicities, respectively. If b..-->..c dominance is assumed for the weak decay of the B meson, then the semileptonic multiplicity is consistent with the recoil mass determined from the lepton momentum spectrum.

The branching fraction for the decay of the UPSILON(1S) into tau pairs has been measured to be 3.4 +- 0.4 +- 0.4%. This result agrees with the previously measured branching ratio of the decay into muon pairs.

A measurement is presented of inclusive charged D* (2010) production from nonresonant e/sup +/e/sup -/ annihilation in the center-of-mass energy (W) range 10.2 GeV..D/sup 0/..pi../sup +/..-->..K/sup -/..pi../sup +/..pi../sup +/ and the charge conjugate mode. It is found that 40 +- 7 +- 13% of the charm quarks from the process e/sup +/e/sup -/..-->..cc-bar result in D* mesons with z>0.7 (z = 2E/W, where E is the D* energy).

Data on inclusive kaon production in e/sup +/e/sup -/ annihilations at energies in the vicinity of the UPSILON(4S) resonance are presented. A clear excess of kaons is observed on the UPSILON(4S) compared to the continuum. Under the assumption that the UPSILON(4S) decays into BB-bar, a total of 3.38 +- 0.34 +- 0.68 kaons per UPSILON(4S) decay is found. In the context of the standard B-decay model this leads to a value for (b..-->..c)/(b..-->..all) of 1.09 +- 0.33 +- 0.13.

We describe the design, construction and performance of a pressurized proportional chamber system intended to identify particles by means of their energy loss in thin gas samples. The system is part of the CLEO detector at the Cornell Electron-Positron Storage Ring (CESR).

We have searched for flavor-changing neutral-current weak decays of the b quark and find R/sub B/(b..-->..l/sup +/l/sup -/X)

Virtually all analyses of the superconductor-insulator-superconductor (SIS) quasiparticle mixer have employed the quantum theory of mixing in its three-frequency approximate form. This approximation is valid only in the limit of very large junction capacitance. For finite capacitance, these analyses may be seriously in error. To remedy this, a computer program has been developed which uses the quantum theory of mixing in its most general form, treating the large-signal properties of the mixer in the time domain. The terminating impedances at the harmonics of the local oscillator frequency and their sidebands can be arbitrary. Using this analysis, the effect of finite junction capacitance on one SIS mixer's performance is described. This gives an insight into the range of validity of the three-frequency model.

The Alaska Department of Transportation and Public Facilities (ADOTPF) is presently evaluating the use of recycled rubber in hot mix pavement applications. The benefits of adding rubber to the mix include increased skid resistance under icy conditions, improved flexibility and crack resistance, elimination of a solid waste, and reduced traffic noise. The major disadvantage of these rubber-modified mixes is their high cost in relation to conventional asphaltic concrete pavements. A comparison of the economics of the rubber-modified system with that of the conventional pavement shows that the rubber-modified surfacing is cost-effective. This conclusion is based on an analysis of life-cycle costs, but does not include potential intangible benefits of the rubber-modified system, such as increased skid resistance and noise reduction.

Evidence is reported from the CLEO detector for the chi/sub b/(1P) states from radiative decays of the UPSILON(2S). Photons are detected by pair conversion in the beam pipe or a lead radiator, and the pair momenta are measured in the drift chamber. Two photon lines are well resolved, with energies 109.5 +- 0.7 +- 1 and 129.0 +- 0.8 +- 1 MeV.

Results on the proton structure function, $\ensuremath{\nu}{W}_{2}$ are presented for $0.3l{q}^{2}l50$ Ge${\mathrm{V}}^{2}$ and $5l\ensuremath{\nu}l130$ GeV. They are compared to earlier data and displayed to demonstrate violations of scaling. Values are reported for the energy-momentum sum rule and for $R\ensuremath{\equiv}\frac{{\ensuremath{\sigma}}_{L}}{{\ensuremath{\sigma}}_{T}}$ over a limited kinematic region.