SwePub - sökning: WFRF:(Arvidson A)

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1.	Arvidson, R. E., et al. (författare) Spirit Mars Rover Mission : Overview and selected results from the northern Home Plate Winter Haven to the side of Scamander crater 2010 Ingår i: Journal of Geophysical Research. - Hoboken, NJ : Wiley-Blackwell. - 0148-0227 .- 2156-2202. ; 115:9, s. E00F03- Tidskriftsartikel (refereegranskat)
2.	Farley, K.A., et al. (författare) In situ radiometric and exposure age dating of the martian surface 2014 Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 343:6169 Tidskriftsartikel (refereegranskat)abstract We determined radiogenic and cosmogenic noble gases in a mudstone on the floor of Gale Crater. A K-Ar age of 4.21 ± 0.35 billion years represents a mixture of detrital and authigenic components and confirms the expected antiquity of rocks comprising the crater rim. Cosmic-ray-produced 3He, 21Ne, and 36Ar yield concordant surface exposure ages of 78 ± 30 million years. Surface exposure occurred mainly in the present geomorphic setting rather than during primary erosion and transport. Our observations are consistent with mudstone deposition shortly after the Gale impact or possibly in a later event of rapid erosion and deposition. The mudstone remained buried until recent exposure by wind-driven scarp retreat. Sedimentary rocks exposed by this mechanism may thus offer the best potential for organic biomarker preservation against destruction by cosmic radiation.
3.	Arvidson, R. E., et al. (författare) Opportunity Mars Rover mission : Overview and selected results from Purgatory ripple to traverses to Endeavour crater 2011 Ingår i: Journal of Geophysical Research. - Hoboken : Wiley-Blackwell. - 0148-0227 .- 2156-2202. ; 116, s. E00F15- Tidskriftsartikel (refereegranskat)abstract Opportunity has been traversing the Meridiani plains since 25 January 2004 (sol 1), acquiring numerous observations of the atmosphere, soils, and rocks. This paper provides an overview of key discoveries between sols 511 and 2300, complementing earlier papers covering results from the initial phases of the mission. Key new results include (1) atmospheric argon measurements that demonstrate the importance of atmospheric transport to and from the winter carbon dioxide polar ice caps; (2) observations showing that aeolian ripples covering the plains were generated by easterly winds during an epoch with enhanced Hadley cell circulation; (3) the discovery and characterization of cobbles and boulders that include iron and stony-iron meteorites and Martian impact ejecta; (4) measurements of wall rock strata within Erebus and Victoria craters that provide compelling evidence of formation by aeolian sand deposition, with local reworking within ephemeral lakes; (5) determination that the stratigraphy exposed in the walls of Victoria and Endurance craters show an enrichment of chlorine and depletion of magnesium and sulfur with increasing depth. This result implies that regional-scale aqueous alteration took place before formation of these craters. Most recently, Opportunity has been traversing toward the ancient Endeavour crater. Orbital data show that clay minerals are exposed on its rim. Hydrated sulfate minerals are exposed in plains rocks adjacent to the rim, unlike the surfaces of plains outcrops observed thus far by Opportunity. With continued mechanical health, Opportunity will reach terrains on and around Endeavour's rim that will be markedly different from anything examined to date. Copyright 2011 by the American Geophysical Union.
4.	Adeva, B, et al. (författare) The spin-dependent structure function g(1)(x) of the proton from polarized deep-inelastic muon scattering 1997 Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 412:3-4, s. 414-424 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract We present a new measurement of the virtual photon proton asymmetry A(1)(P) from deep inelastic scattering of polarized muons on polarized protons in the kinematic range 0.0008 < x < 0.7 and 0.2 < Q(2) < 100 GeV2. With this, the statistical uncertainty of
5.	Yoshimi, A., et al. (författare) Second allogeneic hematopoietic stem cell transplantation (HSCT) results in outcome similar to that of first HSCT for patients with juvenile myelomonocytic leukemia 2007 Ingår i: Leukemia. - : Springer Science and Business Media LLC. - 0887-6924 .- 1476-5551. ; 21:3, s. 556-560 Tidskriftsartikel (refereegranskat)
6.	Adams, D, et al. (författare) A large Streamer Chamber muon tracking detector in a high-flux fixed-target application 1999 Ingår i: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. - : ELSEVIER SCIENCE BV. - 0168-9002. ; 435:3, s. 354-374 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract Arrays of limited streamer tubes of the Iarocci type were deployed in our experiment at CERN as part of a forward muon detector system with provisions for the beam to pass through the center of each panel in the array. A total of 16 4 m x 4 m panels were
7.	Adams, D, et al. (författare) Measurement of the SMC muon beam polarisation using the asymmetry in the elastic scattering off polarised electrons 2000 Ingår i: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. - : ELSEVIER SCIENCE BV. - 0168-9002. ; 443:1, s. 1-19 Tidskriftsartikel (refereegranskat)abstract A muon beam polarimeter was built for the SMC experiment at the CERN SPS, for beam energies of 100 and 190 GeV. The beam polarisation is determined from the asymmetry in the elastic scattering off the polarised electrons of a ferromagnetic target whose ma
8.	Adams, D, et al. (författare) Spin structure of the proton from polarized inclusive deep-inelastic muon-proton scattering 1997 Ingår i: PHYSICAL REVIEW D. - : AMER INST PHYSICS. ; 56:9, s. 5330-5358 Recension (övrigt vetenskapligt/konstnärligt)abstract We have measured the spin-dependent structure function g(1)(p) in inclusive deep-inelastic scattering of polarized muons off polarized protons, in the kinematic range 0.003
9.	Adams, D, et al. (författare) The polarized double cell target of the SMC 1999 Ingår i: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. - : ELSEVIER SCIENCE BV. - 0168-9002. ; 437:1, s. 23-67 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract The polarized target of the Spin Muon Collaboration at CERN was used for deep inelastic muon scattering experiments during 1993-1996 with a polarized muon beam to investigate the spin structure of the nucleon. Most of the experiments were carried out with
10.	Adams, D, et al. (författare) The spin-dependent structure function g(1)(x) of the deuteron from polarized deep-inelastic muon scattering 1997 Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 396:1-4, s. 338-348 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract We present a new measurement of the spin-dependent structure function g(1)(d) of the deuteron from deep inelastic scattering of 190 GeV polarized muons on polarized deuterons. The results are combined with our previous measurements of g(1)(d). A perturbat
11.	Adeva, B, et al. (författare) Large enhancement of deuteron polarization with frequency modulated microwaves 1996 Ingår i: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. - : ELSEVIER SCIENCE BV. - 0168-9002. ; 372:3, s. 339-343 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract We report a large enhancement of 1.7 in deuteron polarization up to values of 0.6 due to frequency modulation of the polarizing microwaves in a two liter polarized target using the method of dynamic nuclear polarization. This target was used during a deep
12.	Adeva, B, et al. (författare) Measurement of proton and nitrogen polarization in ammonia and a test of equal spin temperature 1998 Ingår i: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. - : ELSEVIER SCIENCE BV. - 0168-9002. ; 419:1, s. 60-82 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract The 1996 data taking of the SMC experiment used polarized protons to measure the spin-dependent structure function g(1) of the proton. Three liters of solid granular ammonia were irradiated at the Bonn electron linac in order to create the paramagnetic ra
13.	Adeva, B, et al. (författare) Spin asymmetries A(1) and structure functions g(1) of the proton and the deuteron from polarized high energy muon scattering - art. no. 112001 1998 Ingår i: PHYSICAL REVIEW D. - : AMERICAN PHYSICAL SOC. - 0556-2821. ; 5811:11, s. 2001- Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract We present the final results of the spin asymmetries A(1) and the spin structure functions g(1) of the proton and the deuteron in the kinematic range 0.0008 < x < 0.7 and 0.2 < Q(2) < 100 GeV2. For the determination of A(1), in addition to the usual metho
14.	Adeva, B, et al. (författare) Spin asymmetries A(1) of the proton and the deuteron in the low x and low Q(2) region from polarized high energy muon scattering - art. no. 072004 1999 Ingår i: PHYSICAL REVIEW D. - : AMERICAN PHYSICAL SOC. - 0556-2821. ; 6007:7, s. 2004- Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract We present the results of the spin asymmetries Al of the proton and the deuteron in the kinematic region extending down to x = 6 x 10(-5) and Q(2) = 0.01 GeV2. The data were taken with a dedicated low x trigger, which required hadron detection in addition
15.	AMAUDRUZ, P, et al. (författare) A REEVALUATION OF THE NUCLEAR-STRUCTURE FUNCTION RATIOS FOR D, HE, LI-6, C AND CA 1995 Ingår i: NUCLEAR PHYSICS B. - : ELSEVIER SCIENCE BV. - 0550-3213. ; 441:1-2, s. 3-11 Tidskriftsartikel (refereegranskat)abstract We present a re-evaluation of the structure function ratios F-2(He)/F-2(D), F-2(C)/F-2(D) and F-2(Ca)/F-2(D) measured in deep inelastic muon-nucleus scattering at an incident muon momentum of 200 GeV. We also present the ratios F-2(C)/F-2(Li), F-2(Ca)/F-2
16.	Arneodo, M, et al. (författare) Accurate measurement of F-2(d)/F-2(p) and R(d)-R(p) 1997 Ingår i: NUCLEAR PHYSICS B. - : ELSEVIER SCIENCE BV. - 0550-3213. ; 487:1-2, s. 3-26 Tidskriftsartikel (refereegranskat)abstract Results are presented for F-2(d)/F-2(p) and R(d) - R(p) from simultaneous measurements of deep inelastic muon scattering on hydrogen and deuterium targets, at 90, 120, 200 and 280 GeV. The difference R(d) - R(p), determined in the range 0.002 < x < 0.4 at
17.	Arneodo, M, et al. (författare) Measurement of the proton and deuteron structure functions, F-2(p) and F-2(d), and of the ratio sigma(L)/sigma(T) 1997 Ingår i: NUCLEAR PHYSICS B. - : ELSEVIER SCIENCE BV. - 0550-3213. ; 483:1-2, s. 3-43 Tidskriftsartikel (refereegranskat)abstract The muon-proton and muon-deuteron inclusive deep inelastic scattering cross sections were measured in the kinematic range 0.002 < x < 0.60 and 0.5 < Q(2) < 75 GeV2 at incident muon energies of 90, 120, 200 and 280 GeV. These results are based on the full
18.	ARNEODO, M, et al. (författare) MEASUREMENT OF THE PROTON AND THE DEUTERON STRUCTURE FUNCTIONS, F-2(P) AND F-2(D) 1995 Ingår i: PHYSICS LETTERS B. ; 364:2, s. 107-115 Tidskriftsartikel (refereegranskat)
19.	Arneodo, M, et al. (författare) The A dependence of the nuclear structure function ratios 1996 Ingår i: NUCLEAR PHYSICS B. - : ELSEVIER SCIENCE BV. - 0550-3213. ; 481:1-2, s. 3-22 Tidskriftsartikel (refereegranskat)abstract Results are presented for six nuclei from Be to Pb on the structure function ratios F-2(A)/F-2(C)(X) and their A dependence in deep inelastic muon scattering at 200 GeV incident: muon energy. The data cover the kinematic range 0.01 < x < 0.8 with Q(2) ran
20.	Arneodo, M, et al. (författare) The Q(2) dependence of the structure function ratio F-2(Sn)/F-2(C) and the difference R(Sn)-R(C) in deep inelastic muon scattering 1996 Ingår i: NUCLEAR PHYSICS B. - : ELSEVIER SCIENCE BV. - 0550-3213. ; 481:1-2, s. 23-39 Tidskriftsartikel (refereegranskat)abstract The Q(2) dependence of the structure function ratio F-2(Sn)/F-2(C) for 0.01 < x < 0.75 and 1 < Q(2) < 140 GeV2 is reported. For x < 0.1 the size of shadowing decreases linearly with In Q(2) and the maximum rate is about 0.04 at x = 0.01. The rate decrease
21.	ARNEODO, M, et al. (författare) THE STRUCTURE-FUNCTION RATIOS F-2(LI)/F-2(D) AND F-2(C)/F-2(D) AT SMALL-X 1995 Ingår i: NUCLEAR PHYSICS B. - : ELSEVIER SCIENCE BV. - 0550-3213. ; 441:1-2, s. 12-30 Tidskriftsartikel (refereegranskat)abstract We present the structure function ratios F-2(Li)/F-2(D) and F-2(C)/F-2(D) measured in deep inelastic muon-nucleus scattering at a nominal incident muon energy of 200 GeV. The kinematic range 10(-4) < x < 0.7 and 0.01 < Q(2) < 70 GeV2 is covered. For value
22.	Bystrova, K., et al. (författare) The effect of Russian Maternity Home routines on breastfeeding and neonatal weight loss with special reference to swaddling 2007 Ingår i: Early Human Development. - : Elsevier BV. - 0378-3782 .- 1872-6232. ; 83:1, s. 29-39 Tidskriftsartikel (refereegranskat)abstract Background: Few investigations have considered evaluating the effects of certain combinations of ward routines like swaddling of the baby and separation of mother and baby on infant variables such as neonatal weight toss. Aims: To study the effect of different ward routines in respect to proximity to mother and type of infant apparel, on breastfeeding parameters (amount of ingested milk, volume of supplements, number of breastfeeds, total duration of breastfeeding time) day 4 after birth as well as recovery from neonatal weight loss and infant's weight on day 5. Study design and subjects: In a randomized trial with factorial design four treatment groups including 176 mother-infant dyads were studied 25-120 min after birth. Randomized treatments focused on care routines administered to the infants after delivery and later in the maternity ward as well as to the type of clothing the infants received. Group 1 infants were placed skin-to-skin with their mothers after delivery, and had rooming-in while in the maternity ward. Group 2 infants were dressed and placed in their mothers' arms after delivery, and roomed-in with mothers in the maternity ward. Group 3 infants were kept in the nursery both after birth and while their mothers were in the maternity ward. Group 4 infants were kept in the nursery after birth, but roomed-in with their mothers in the maternity ward. Equal numbers of infants were either swaddled or clothed in baby attire. Breastfeeding parameters were documented during day 4 after birth. Infant's weight was measured daily. Results: Babies who were kept in the nursery received significantly more formula and significantly less breast-milk, than did babies who roomed-in with their mothers. Swaddling did not influence the breastfeeding parameters measured. However, swaddled babies who had experienced a 2-h separation period after birth and then were reunited with their mothers tended to have a delayed recovery of weight loss compared to those infants who were exposed to the same treatment but dressed in clothes. Furthermore, swaddled babies who were kept in the nursery and received breast-milk supplements had a significantly delayed recovery of weight loss after birth when compared to those infants ingesting only breast-milk. On day 5, regression analyses of predicted weight gain in the exclusively breastfed infants indicated a significant increase per 100 ml breast-milk (59 g), compared to the predicted weight gain on day 5 per 100 ml supplements in the swaddled babies (14 g) (P=0.001). Conclusion: Supplements given to the infants in the nursery had a negative influence on the amount of milk ingested. In addition, supplement feeding or a short separation after birth when combined with swaddling was shown to have a negative consequence to infant weight gain.
23.	Lanza, N.L., et al. (författare) Oxidation of manganese at Kimberley, Gale Crater : More free oxygen in Mars’ past? 2015 Konferensbidrag (refereegranskat)
24.	Lanza, Nina L., et al. (författare) Oxidation of manganese in an ancient aquifer, Kimberley formation, Gale crater, Mars 2016 Ingår i: Geophysical Research Letters. - 0094-8276 .- 1944-8007. ; 43:14, s. 7398-7407 Tidskriftsartikel (refereegranskat)abstract The Curiosity rover observed high Mn abundances (>25wt % MnO) in fracture-filling materials that crosscut sandstones in the Kimberley region of Gale crater, Mars. The correlation between Mn and trace metal abundances plus the lack of correlation between Mn and elements such as S, Cl, and C, reveals that these deposits are Mn oxides rather than evaporites or other salts. On Earth, environments that concentrate Mn and deposit Mn minerals require water and highly oxidizing conditions; hence, these findings suggest that similar processes occurred on Mars. Based on the strong association between Mn-oxide deposition and evolving atmospheric dioxygen levels on Earth, the presence of these Mn phases on Mars suggests that there was more abundant molecular oxygen within the atmosphere and some groundwaters of ancient Mars than in the present day
25.	ADAMS, D, et al. (författare) A NEW MEASUREMENT OF THE SPIN-DEPENDENT STRUCTURE-FUNCTION G(1)(X) OF THE DEUTERON 1995 Ingår i: PHYSICS LETTERS B. ; 357:1-2 Annan publikation (övrigt vetenskapligt/konstnärligt)

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