Performance of the LHC magnet system (2009)
The LHC magnet system, essentially composed of superconducting magnets operating at 1.9 K, has been largely commissioned in 2007-08. Before the serious incident of 19th September 2008, the magnet...
Rossi, L., Riehle, M.O., McNamara, L.E., Burchmore, R.J.S., Dalby, M.J., McMurray, R.J., ...
Abstract not available
Electromagnetic efficiency of block design in superconducting dipoles (2009)
Semi-analytical scaling laws have been derived for the electromagnetic design of superconducting dipoles based on sector coils approximation. Here we discuss the different features of block coils...
High critical current density (Jc) Nb3Sn conductor is the best candidate for next generation high field (> 10 T) accelerator magnets. Although very promising, state of the art high-Jc Nb3Sn...
Report of the Task Force on the Incident of 19th September 2008 at the LHC (2009)
Bajko, M, Bertinelli, F, Catalan-Lasheras, N, Claudet, S, Cruikshank, P, Dahlerup-Petersen, K, ...
This report summarizes the findings and recommendations of the AT department Task Force established to investigate the 19th September 2008 incident which occurred in sector 3-4 of the LHC. It...
Real-life efficiency of urine source separation (2009)
Rossi, L, Lienert, J, Tove, L A
Urine source separation (NoMix technology) is a promising innovation in wastewater management. To improve and further develop NoMix technology, it has been implemented in four Swiss households and at...
Micropollutants in urban watersheds : Substance flow analysis as management tool (2009)
Rossi, L, Copin, P J, Barry, D A, Bader, H-P, Scheidegger, R, Chèvre, N
HydroPix: a vision-based tool for the control of hydraulic structures in sewer systems. (2009)
Nguyen, L, Sage, D, Schaeli, B, Kayal, S, Rossi, L, Barry, D A
Corresponding author. Tel.: 41-22-76-73788; fax.: 41-22-76-73394. (2008)
Mail Address Iztok, I. Ropotar, F. Antinori, D. Barberis, K. H. Becks, ...
Hybrid assemblies of LHC1 read-out chips and 300 #m thick silicon pixel detectors have been tested with a 120 GeV/c pion beam at the CERN SPS. The equivalent noise charge at the input of the...
Nasledie Gumanizma v russkoj kul’ture konca 18.-načala 19. veka (2008)
ROSSI, LAURA, L. Rossi, Olga Głowko
Nasledie Gumanizma v russkoj kul’ture konca 18.-načala 19. veka / L. Rossi. - In: Literatura rosyjska XVIII-XXI w. Dialog idei i poetyk ; [a cura di] Olga Głowko. - Łódź : Wydawnictwo...
"Scuola della maldicenza" o scuola di lingua viva? La traduzione russa (1793) del capolavoro di Sheridan e il problema della ‘lingua della conversazione’ / L. Rossi. - (Biblioteca di studi...
Diffuse release of environmental hazards by railways (2008)
Burkhardt, M., Rossi, L., Boller, M.
There is increasing concern about environmental pollution by diffuse emissions of various environmental hazards emitted by transportation activities. For the first time substances released by...
Rossi, L., Martini, G., Zulian, F., Sainati, L.
Poster presentation Association of CD and RA is widely described in adults, but has never been reported in children with JIA. We report a 13 years old girl with a 6 years history of polyarticular JIA...
M. E. Amendola, L. Rossi, A. Vitolo
We are concerned with fully nonlinear uniformly elliptic operators with a superlinear gradient term. We look for local estimates, such as weak Harnack inequality and local maximum principle, and...
Electromagnetic Design of Superconducting Dipoles Based on Sector Coils (2007)
We study the coil lay-outs of superconducting dipoles for particle accelerators based on the sector geometry. We show that a simple model based on a sector coil with a wedge allows us to derive an...
The Omega, M. I. Adamovich, E. Albertson, Yu. A. Alex, D. Barberis, M. Beck, ...
Among the ground state charmed hadrons the\Omega 0 c is the least known particle. It has so far been observed in a few decay channels only and with low statistics. Using a data sample of 1993 from...
Electromagnetic Design of Superconducting Quadrupoles (2006)
We study how the critical gradient depends on the coil lay-out in a superconducting quadrupole for particle accelerators. We show that the results relative to a simple sector coil are well...
Burastero, A., Pintus, F., Rossi, L., Versace, C.
The effectiveness of alert systems for civil protection purposes, defined as the ability to minimize the level of risk in a region subjected to an imminent flood event, strongly depends on...
“Vergilij Murav’eva”: k probleme Gumanizma v Rossii (2005)
“Vergilij Murav’eva”: k probleme Gumanizma v Rossii / L. Rossi. - In: Newsletter. Study Group on Eighteenth-Century Russia. - ISSN 0306-8455. - 33(2005). - p. 73-79.
Stochastic modeling of total suspended solids (TSS) in urban areas during rain events (2005)
Rossi, L, Krejci, V, Rauch, W, Kreikenbaum, S, Fankhauser, F, Gujer, W
Search for the exotic $\Xi^{--}(1860)$ Resonance in 340GeV/c $\Sigma^-$-Nucleus Interactions (2004)
Adamovich, M I, Alexandrov, Yu A, Baranov, S P, Barberis, D, Beck, M, Bérat, C, ...
We report on a high statistics search for the $\Xi^{--}(1860)$ resonance in $\Sigma^-$-nucleus collisions at 340GeV/c. No evidence for this resonance is found in our data sample which contains 676000...
High field accelerator magnet R&D in Europe (2004)
Devred, Arnaud, Baynham, D Elwyn, Bottura, L, Chorowski, M, Fabbricatore, P, Leroy, D, ...
The LHC magnet R&D program has shown that the limit of NbTi technology at 1.9 K was in the 10-to-10.5-T range. Hence, to go beyond the 10-T threshold, it is necessary to change the superconducting...
Rossi, L., Brandi, G., Malatesta, M., Serafini, S., Pierigé, F., Celeste, A. G., ...
Objective: To evaluate the efficacy of erythrocytes loaded with the haemolytic toxin listeriolysin O against Mycobacterium avium replication within human macrophages. Methods: Recombinant...
Rossi, L., Brandi, G., Malatesta, M., Serafini, S., Pierigé, F., Celeste, A. G., ...
Objective: To evaluate the efficacy of erythrocytes loaded with the haemolytic toxin listeriolysin O against Mycobacterium avium replication within human macrophages. Methods: Recombinant...
Superconducting Magnets for Accelerators and Detectors (2003)
The development of superconductors for magnet applications has received a strong boost from the High Energy Physics (HEP) community, both for detector magnets and for accelerator magnets. The demand...
A measurement of Lorentz angle and spatial resolution of radiation hard silicon pixel sensors (2002)
Gorelov, I., Gorfine, G., Hoeferkamp, M., Seidel, S C., Ciocio, A., Einsweiler, K., ...
Silicon pixel sensors developed by the ATLAS collaboration to meet LHC requirements and to withstand hadronic irradiation to fluences of up to $10^{15} n_eq/cm^{2}$ have been evaluated using a test...
A measurement of Lorentz angle and spatial resolution of radiation hard silicon pixel sensors (2002)
Gorelov, I., Gorfine, G., Hoeferkamp, M., Seidel, S C., Ciocio, A., Einsweiler, K., ...
Silicon pixel sensors developed by the ATLAS collaboration to meet LHC requirements and to withstand hadronic irradiation to fluences of up to $10^{15} n_eq/cm^{2}$ have been evaluated using a test...
The ATLAS silicon pixel sensors (2001)
Alam, M S., Ciocio, A., Einsweiler, K., Emes, J., Gilchriese, M G D., Joshi, A., ...
Prototype sensors for the ATLAS silicon pixel detector have been developed. The design of the sensors is guided by the need to operate them in the severe LHC radiation environment at up to several...
A measurement of K$^{*\pm}$ production in the hyperon beam experiment at CERN (2001)
Adamovich, M I., Alexandrov Yu, A., Barberis, D., Beck, M., Berat, C., Beusch, W., ...
The ATLAS silicon pixel sensors (2001)
Alam, M S., Ciocio, A., Einsweiler, K., Emes, J., Gilchriese, M G D., Joshi, A., ...
Prototype sensors for the ATLAS silicon pixel detector have been developed. The design of the sensors is guided by the need to operate them in the severe LHC radiation environment at up to several...
A measurement of K$^{*\pm}$ production in the hyperon beam experiment at CERN (2001)
Adamovich, M I., Alexandrov Yu, A., Barberis, D., Beck, M., Berat, C., Beusch, W., ...
Interaction of ocean waves with wave generated by surfing ship (2001)
Anderson, D., Buckmire, R., Cook, P., Cumberbatch, E., Fitt, A., Howell, P., ...
Progress on the conductor for the superconducting toroids of the ATLAS experiment (2000)
Rossi, L, Volpini, G, Berriaud, C, Horváth, I L, Neuenschwander, J
Alexandrov, Yu A, Angelini, C, Barberis, D, Ceradini, F, Dameri, M, Darbo, G, ...
Using interactions of $350\,\hbox{GeV}/c
Adamovich, M.I., Aleksandrov, Yu.A., Barberis, D., Beck, M., Berat, C., Beusch, W., ...
The production of charmed particles by Sigma- of 340 Gev/c momentum was studied in the hyperon beam experiment WA89 at the CERN-SPS, using the Omega-spectrometer. In two data-taking periods in 1993...
Adamovich, M.I., Aleksandrov, Yu.A., Barberis, D., Beck, M., Berat, C., Beusch, W., ...
The production of charmed particles by Sigma- of 340 Gev/c momentum was studied in the hyperon beam experiment WA89 at the CERN-SPS, using the Omega-spectrometer. In two data-taking periods in 1993...
Alexandrov, Yu A, Angelini, C, Barberis, D, Ceradini, F, Cianfarani, C, Dameri, M, ...
Using a sample of $26$ b\=b events, produced in $350\,\hbox{GeV}/c$ $\pi^-$ interactions in a copper target, which includes $13$ events where the decays of both $B$ and $\overline{B}$ are well...
Alexandrov, Yu A, Angelini, C, Barberis, D, Ceradini, F, Dameri, M, Darbo, G, ...
Charmonium production by 350~GeV/$c$ negative pions incident on tungsten, copper and silicon has been studied in the WA92 experiment. \jp\ and \pp\ mesons are identified through their decays into...
Strangeness enhancement at mid-rapidity in Pb-Pb collisions at 158 GeV/c (1999)
Andersen, E, Antinori, Federico, Armenise, N, Bakke, H, Bán, J, Barberis, D, ...
$K^{0}_{s}$, $\Lambda$, $\Xi$, $\Omega$ and negative particle yields and transverse mass spectra have been measured at central rapidity in Pb-Pb and p-Pb collisions at 158 $A$ GeV/$c$. The yields in...
$D^{*\pm}$ production in 350 GeV/c $\pi^{-}$-N interactions (1999)
Adinolfi, M, Alexandrov, Yu A, Angelini, C, Barberis, D, Cardini, A, Ceradini, F, ...
We report measurements of ${\rm D}^{*\pm}$ production in interactions between $350\,{\rm GeV/}c$ $\pi^-$ particles and nuclei. Reconstruction of the decay ${\rm D}^{*+} \rightarrow {\rm D}^0 \pi^+$...
A measurement of the form-factor ratios in the decay $D^+ \to \overline{K}^{*0}\mu^+\nu_\mu$ (1998)
Adamovich, M I, Alexandrov, Yu A, Angelini, C, Barberis, D, Ceradini, F, Cianfarani, C, ...
The form-factor ratios in the decay ${\bf {\rm D^+ \rightarrow \bar K^{*0}\mu^+\nu_\mu}}$ have been measured using a sample of 763 events produced in the WA92 fixed-target experiment. \\ The value s...
Alexandrov, Yu A, Angelini, C, Barberis, D, Ceradini, F, Cianfarani, C, Dameri, M, ...
Using a sample of $10^8$ triggered events, produced in $350\, \hbox{GeV}/c$ $\pi^-$ interactions in a copper target, we have identified $26$ b\=b events. These include $13$ events where the decays of...
Andersen, E, Antinori, Federico, Armenise, N, Bakke, H, Bán, J, Barberis, D, ...
$\Lambda$, $\Xi$ and $\Omega$ yields and transverse mass spectra have been measured at central rapidity in Pb-Pb and p-Pb collisions at 158~A~GeV/$c$. The yields in Pb-Pb interactions are presente d...
Adamovich, M I, Alexandrov, Yu A, Barberis, D, Beck, M, Bérat, C, Beusch, Werner, ...
CERN experiment WA89 has studied charmed particles produced by a Sigma^- beam at 340 GeV/c on nuclear targets. Production of particles which have light quarks in common with the beam is compared to...
Measurement of the beauty production cross-section in 350 GeV/c $\pi^-$ -Cu interactions (1998)
Adamovich, M I, Adinolfi, M, Alexandrov, Yu A, Angelini, C, Antinori, Federico, Bacci, Cesare, ...
Using a sample of $10^8$ triggered events, produced in $\pi^-$--$\,$Cu interactions at 350~GeV$/c$, we have identified 26 beauty events. The estimated background in this sample is $0.6 \pm 0.6$...
First observation of the $\Xi^{-} \pi^{+}$ decay mode of the $\Xi^{0}(1690)$ hyperon (1998)
Adamovich, M I., Alexandrov Yu, A., Barberis, D., Beck, M., Berat, C., Beusch, W., ...
First observation of the $\Xi^{-} \pi^{+}$ decay mode of the $\Xi^{0}(1690)$ hyperon (1998)
Adamovich, M I., Alexandrov Yu, A., Barberis, D., Beck, M., Berat, C., Beusch, W., ...
First observation of the $\Xi^{-} \pi^{+}$ decay mode of the $\Xi^{0}(1690)$ hyperon (1997)
Adamovich, M I, Alexandrov, Yu A, Barberis, D, Beck, M, Bérat, C, Beusch, Werner, ...
We report the first observation of the Xi- pi+ decay mode of the Xi0(1690), confirming the existence of this resonance. The Xi0(1690) were produced by Sigma- of 345 Gev/c mean momentum in copper and...
Search for the flavour-changing neutral-current decay $D^0 \to \mu^{+}\mu^{-}$ (1997)
Adamovich, M I, Alexandrov, Yu A, Angelini, C, Barberis, D, Ceradini, F, Cianfarani, C, ...
We have searched for the decay $D^0 \rightarrow \mu^+\mu^-$ among $2.0 \times 10^5$ $\mu^+\mu^-$ pairs \hbox{produced,} in the WA92 experiment, by 350 GeV/$c$ \ $\pi^-$ particles interacting in...
Adamovich, M I, Alexandrov, Yu A, Barberis, D, Beck, M, Bérat, C, Beusch, Werner, ...
Inclusive cross sections for \ximin\ hyperon production in high-energy \sigmamin, \pimin\ and neutron induced interactions were measured by the experiment WA89 at CERN. Secondary \sigmamin\ and...
Adamovich, M I, Alexandrov, Yu A, Angelini, C, Barberis, D, Batten, J, Ceradini, F, ...
Charmed-meson production by $350$~GeV/$c$ {$\pi^-$} particles incident on copper and tungsten targets has been studied in the WA$92$ experiment, performed at the CERN $\Omega^\prime$ spectrometer....
Adamovich, M I, Adinolfi, M, Alexandrov, Yu A, Angelini, C, Barberis, D, Barney, D, ...
A sample of 475 events, in which two charmed-particle decays are observed, is analyzed to determine distributions of two-particle kinematic variables. One charmed particle with $x_F > 0$ is fully...
WA92: a fixed target experiment to trigger on and identify beauty particle decays (1996)
Adamovich, M I, Adinolfi, M, Alexandrov, Yu A, Angelini, C, Antinori, Federico, Bacci, Cesare, ...
We describe the detectors and trigger system used in the CERN WA92 experiment. The experiment was designed to study the production and decay of beauty particles from 350 GeV/$c\,$ $\,\pi^-$...
Study of charm correlations in $\pi^{-}$-N interactions at \Sqrt s $\appprox$ 26 GeV (1995)
Adamovich, M I, Adinolfi, M, Alexandrov, Yu A, Angelini, C, Antinori, Federico, Bacci, Cesare, ...
Measurement of the $\Omega_{c}^{0}$ lifetime (1995)
Adamovich, M I., Albertson, E., Alexandrov, Yu., Barberis, D., Beck, M., Berat, C., ...
Measurement of the $\Omega_{c}^{0}$ lifetime (1995)
Adamovich, M I., Albertson, E., Alexandrov, Yu., Barberis, D., Beck, M., Berat, C., ...
Performance of the first CERN-INFN 10 m long superconducting dipole prototype for the LHC (1994)
Bóna, M, Leroy, D, Perin, R, Rodríguez-Mateos, F, Siemko, A, Sievers, P, ...
First operation of a 72 k element hybrid silicon micropattern pixel detector array (1994)
Heijne, Erik H M, Antinori, Federico, Arnold, R, Barberis, D, Beker, H, Beusch, Werner, ...
Development of silicon micropattern pixel detectors (1994)
Antinori, F, Beker, H, Batignani, G, Beusch, W, Bonvicini, V, ...
G. Tuteri, A. Niccoli, D. Mezzetti, L. Rossi, L. Bruni
To compare the effectiveness of cromolyn sodium (CS) (10 mg) and nedocromil sodium (NS) (4 mg) administered by a metered dose inhaler (MDI) with a spacer device in preventing exercise-induced asthma...
Study of the vector vector final states centrally produced in pp interactions at 300 GeV/c (1993)
Armstrong, T A, Benayoun, M, Bloodworth, Ian J, Carney, J N, Evangelista, C, French, Bernard R, ...
Results on charmed meson decay from the WA82 experiment at the CERN OMEGA spectometer (1993)
Adamovich, M I, Alexandrov, Yu A, Antinori, Federico, Barberis, D, Beusch, Werner, Buys, A, ...
CICOGNA, R., BONOMI, F. G., CURNIS, A., MASCIOLI, G., BOLLATI, A., VISIOLI, O., ...
An intense vaso-vagal reaction characterizes those reflex cardiovascular syncopes in which the glossopharyngeal nerve constitutes the main afferent nerve pathway. In these syndromes, afferent fibres...
A microstrip decay detector for beauty physics (1992)
Adinolfi, M, Angelini, C, Barney, D, Cardini, A, French, Bernard R, Hurst, R B, ...
Results on charm hadroproduction from CERN experiment WA82 (1992)
Adamovich, M I, Alexandrov, Yu A, Anselmi, R, Antinori, Federico, Barberis, D, Beusch, Werner, ...
Further study of the E/f$_{1}$(1420) meson in central production (1992)
Armstrong, T A, Benayoun, M, Bloodworth, Ian J, Carney, J N, Dodenhoff, C J, Evangelista, C, ...
Nuclear dependence of charm production by a 340 GeV $\pi^{-}$ beam (1992)
Adamovich, M I, Alexandrov, Yu A, Antinori, Federico, Barberis, D, Beusch, Werner, Buys, A, ...
New results from charm hadroproduction experiment WA82 (1992)
Buys, A, Adamovich, M I, Alexandrov, Yu A, Antinori, Federico, Barberis, D, Beusch, Werner, ...
Measurement of relative branching fractions of D$^{0}$ Cabibbo-suppressed decays (1992)
Adamovich, M I, Alexandrov, Yu A, Antinori, Federico, Barberis, D, Beusch, Werner, Buys, A, ...
A 1006 element hybrid silicon pixel detector with strobed binary output (1992)
Anghinolfi, Francis, Aspell, P, Bass, K, Beusch, Werner, Bososio, L, Boutonnet, C, ...
OMETTO, R., THIENE, G., CORRADO, D., VINCENZI, M., ROSSI, L.
The basic anatomical substrate of enhanced A-V nodal conduction, manifesting or not as Lown-Ganong-Levine syndrome, is still a controversial issue. We describe the case of a 34-year-old man who...
Strange particle production in sulphur-tungsten interactions at 200 GeV/c per nucleon (1991)
Kinson, J B, Abatzis, S, Antinori, Federico, Barnes, R P, Bayes, A C, Benayoun, M, ...
WA85 results on strangeness production in heavy ion collisions (1991)
Abatzis, S, Antinori, Federico, Barnes, R P, Benayoun, M, Beusch, Werner, Bloodworth, Ian J, ...
A study of the semileptonic decay D$^{+}$ --> $\overline{K}*^{0}$e$^{+}\nu_{e}$ (1991)
Adamovich, M I, Alexandrov, Yu A, Antinori, Federico, Barberis, D, Beusch, Werner, Buys, A, ...
Study of the centrally produced $\pi\pi$ and K$\overline{K}$ systems at 85 and 300 GeV/c (1991)
Armstrong, T A, Benayoun, M, Beusch, Werner, Bloodworth, Ian J, Carney, J N, Childs, R L, ...
Bolognesi, C., Parrini, M., Aiello, C., Rossi, L.
The long-lasting modulating effect induced by the prenatal or neonatal exposure to phenobarbital (PB) and aroclor on the genotoxic activity of 7,12-dimethylbenz[a]anthracene (DMBA) in female...
Preliminary results on charm production by 340 GeV/c $\pi^{-}$ on a target of Si and W (1990)
Grard, F, Adamovich, M I, Alexandrov, Yu A, Antinori, Federico, Bailly, J L, Barberis, D, ...
Strangeness production in sulphur-tungsten interactions at 200 GeV/c per nucleon (1990)
Abatzis, S, Benayoun, M, Beusch, Werner, Bloodworth, Ian J, Bravar, A, Caponero, M, ...
Xenon time projection chamber for beta.beta decay (1990)
Bellotti, E, Cremonesi, O, Fiorini, Ettore, Liguori, C, Ragazzi, S, Rossi, L, ...
Reliability studies of planar silicon detectors (1990)
Gössling, C, Heijne, Erik H M, Jarron, Pierre, Parker, H A, Redaelli, N G, Rossi, L
Charm hadroproduction with an impact parameter trigger (1990)
Forino, A, Gessaroli, R, Mazzanti, P, Quareni, A, Viaggi, F, Barberis, D, ...
Recent WA76 results on central production (1990)
Armstrong, T A, Benayoun, M, Beusch, Werner, Bloodworth, Ian J, Carney, J N, Childs, R L, ...
Results on heavy quark selection through an impact parameter trigger (1990)
Adamovich, M I, Alexandrov, Yu A, Gerassimov, S G, Kharlamov, S P, Malinina, L V, Zavertyaev, M V, ...
New results on WA71 TPC (1990)
Dameri, M, Darbo, G, Lamanna, E, Osculati, B, Petrera, S, Rossi, L, ...
Use of silicon microstrip detectors for precise measurement of high momenta (1990)
Armstrong, T A, Benayoun, M, Beusch, Werner, Bloodworth, Ian J, Caponero, M, Carney, J N, ...
Development of hardware around a silicon microstrip detector with 512 elements (1990)
Heijne, Erik H M, Higón, E, Jarron, Pierre, Rossi, L, Burger, P, Geerlings, W, ...
CRITELLI, G., GALLAGHER, J. J., THIENE, G., PERTICONE, F., COLTORTI, F., ROSSI, L.
A case of permanent junctional reciprocating tachycardia with post-mortem documentation of an accessory atrioventricutar pathway as the substrate of the arrhythmia is reported. Tachycardia had lasted...
Benzo[a]pyrene-induced DNA damage in mouse fetal tissues (1985)
Bolognesi, C., Rossi, L., Barbieri, O., Santi, L.
We have studied the occurrence and persistence of DNA damage in the hepatic and pulmonary tissues of fetal, newborn and adult CD1 mice exposed to selected doses of benzo[a]pyrene (BP) by utilizing...
CURRENT LEADS SYSTEM FOR A SUPERCONDUCTING CYCLOTRON (1984)
Acerbi, E., Broggi, F., Rossi, L., Duthil, R., Kircher, F.
In this paper the data and the criteria for the optimisation of the Milan superconductingn cyclotron current leads are presented.
Left ventricular function in men and women. Another difference between sexes (1982)
BUONANNO, C., ARBUSTINI, E., ROSSI, L., DANDER, B., VASSANELLI, C., PARIS, B., ...
In a group of 70 patients, 29 women and 41 men, with atypical chest pain and normal findings at coronary arteriography, some hemodynamic and angiographic parameters of left ventricular function were...
Myocardial bridges and ischemic heart disease (1980)
Rossi, L, Dander, B, Nidasio, GP, Arbustini, E, Paris, B, Vassanelli, C, ...
AUSTIN, R. B., ROSSI, L., BLACKWELL, R. D.
Seedlings of 12 genotypes were grown in pots and watered with nutrient solutions providing 0, 1, 6 and 20 mg equivalents of nitrate per I. Increasing the external nitrate supply brought about...
Terracini, B., Testa, M. C., Cabral, J. R., Rossi, L.
C3Hf/Dp mice were given a single i.p. injection of 50, 25 or 5 mug/g N-Nitroso-N-Methylurea (NMU) at either 1 or 70 days of age or 50 mug/g at 21 days of age. They were observed until death or until...