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Träfflista för sökning "WFRF:(de la Torre Manuel) srt2:(2010-2014)"

Sökning: WFRF:(de la Torre Manuel) > (2010-2014)

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1.
  • Gõmez-Elvira, Javier, et al. (författare)
  • Curiosity's rover environmental monitoring station : Overview of the first 100 sols
  • 2014
  • Ingår i: Journal of Geophysical Research - Planets. - 2169-9097. ; 119:7, s. 1680-1688
  • Tidskriftsartikel (refereegranskat)abstract
    • In the first 100 Martian solar days (sols) of the Mars Science Laboratory mission, the Rover Environmental Monitoring Station (REMS) measured the seasonally evolving diurnal cycles of ultraviolet radiation, atmospheric pressure, air temperature, ground temperature, relative humidity, and wind within Gale Crater on Mars. As an introduction to several REMS-based articles in this issue, we provide an overview of the design and performance of the REMS sensors and discuss our approach to mitigating some of the difficulties we encountered following landing, including the loss of one of the two wind sensors. We discuss the REMS data set in the context of other Mars Science Laboratory instruments and observations and describe how an enhanced observing strategy greatly increased the amount of REMS data returned in the first 100 sols, providing complete coverage of the diurnal cycle every 4 to 6 sols. Finally, we provide a brief overview of key science results from the first 100 sols. We found Gale to be very dry, never reaching saturation relative humidities, subject to larger diurnal surface pressure variations than seen by any previous lander on Mars, air temperatures consistent with model predictions and abundant short timescale variability, and surface temperatures responsive to changes in surface properties and suggestive of subsurface layering. Key Points Introduction to the REMS results on MSL mission Overiview of the sensor information Overview of operational constraints
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2.
  • Hamilton, Victoria E., et al. (författare)
  • Observations and preliminary science results from the first 100 sols of MSL Rover Environmental Monitoring Station ground temperature sensor measurements at Gale Crater
  • 2014
  • Ingår i: Journal of Geophysical Research. - 0148-0227. ; 119:4, s. 745-770
  • Tidskriftsartikel (refereegranskat)abstract
    • We describe preliminary results from the first 100 sols of ground temperature measurements along the Mars Science Laboratory's traverse from Bradbury Landing to Rocknest in Gale. The ground temperature data show long-term increases in mean temperature that are consistent with seasonal evolution. Deviations from expected temperature trends within the diurnal cycle are observed and may be attributed to rover and environmental effects. Fits to measured diurnal temperature amplitudes using a thermal model suggest that the observed surfaces have thermal inertias in the range of 265-375?J m-2 K-1 s-1/2, which are within the range of values determined from orbital measurements and are consistent with the inertias predicted from the observed particle sizes on the uppermost surface near the rover. Ground temperatures at Gale Crater appear to warm earlier and cool later than predicted by the model, suggesting that there are multiple unaccounted for physical conditions or processes in our models. Where the Mars Science Laboratory (MSL) descent engines removed a mobile layer of dust and fine sediments from over rockier material, the diurnal temperature profile is closer to that expected for a homogeneous surface, suggesting that the mobile materials on the uppermost surface may be partially responsible for the mismatch between observed temperatures and those predicted for materials having a single thermal inertia. Models of local stratigraphy also implicate thermophysical heterogeneity at the uppermost surface as a potential contributor to the observed diurnal temperature cycle. Key Points Diurnal ground temperatures vary with location Diurnal temperature curves are not well matched by a homogeneous thermal model GTS data are consistent with a varied stratigraphy and thermophysical properties.
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4.
  • Koliadi, Anthoula, et al. (författare)
  • Cyclin B is an immunohistochemical proliferation marker which can predict for breast cancer death in low-risk node negative breast cancer
  • 2010
  • Ingår i: Acta Oncologica. - 0284-186X .- 1651-226X. ; 49:6, s. 816-820
  • Tidskriftsartikel (refereegranskat)abstract
    • Patients with low-risk node negative breast cancer have an excellent prognosis with 5% breast cancer mortality at 10 years. However, prognostic factors are needed to identify poor prognostic patients who might benefit from adjuvant systemic therapy. Proliferation has been identified as the most important component of gene expression profiles. Cyclin B is a proliferative marker easily assessed by immunohistochemistry. We wanted to examine cyclin B as a prognostic factor in low-risk breast cancer patients. Patients and methods. Using an experimental study design, we compared women dying early from their breast cancer (n=17) with women free from relapse more than eight years after initial diagnosis (n=24). All women had stage I, node negative and hormone receptor positive disease. None had received adjuvant chemotherapy. Tumor samples were immunostained for cyclin B using commercial antibodies. Results. The mean percentage of cyclin B (12%) was significantly higher (p=0.001) in women dying from their breast cancer compared with women free from relapse ( 5%). High cyclin B (>= 9%) identified 11/17 patients dying from breast cancer and low cyclin B identified 22/24 patients free from relapse. The sensitivity and specificity of cyclin B was 65% and 92%, respectively. Discussion. We found that low-risk node negative patients with high expression of cylin B had a significantly worse outcome than patients with low expression of cyclin B. Cyclin B could separate patients with poor survival from those with good survival with 80% accuracy. We suggest that cyclin B might be a potent prognostic factor in this low-risk patient group.
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5.
  • Lindén, Mårten, et al. (författare)
  • Galectin-1, a potential therapeutic target, in primary tumors and metastases of urinary bladder carcinomas
  • 2013
  • Annan publikation (övrigt vetenskapligt)abstract
    • Urinary bladder cancer would gain from new protein biomarkers due to the heterogeneity of disease. The beta-galactoside-binding protein (GAL1) is one such candidate and in present study its prognostic value and expression at protein level in metastatic bladder cancer-disease, have been evaluated. The protein expression of GAL1 was investigated by immunohistochemistry in two tumor cohorts, one with primary tumors of different stage and grade (n=344) and another with primary tumors matched with metastases (n=90). The expression in the actual cancer cells as well as in stroma and blood vessels were considered since the presence of GAL1 in different tissue compartments has shown cancer relevance. The cellular expression increased with increased tumor stage and grade (p<0.001). For the majority of the patients, cells from both primary tumor and metastasis showed a positive immunoreactivity for GAL1 (91% (n=64) for primary tumors with single metastasis (n=70) and 100% (n=20) for primary tumors with multiple metastasis (n=20). Further, strong immunoreactivity in T1 tumor cells correlated with lower risk of recurrence (p<0.05). Both tumors and metastasis exhibited strong stromal-GAL1 staining that could not be correlated with clinical parameters. The expression in vessels showed that T1 tumors surrounded by GAL1 negative blood vessels had a higher risk of progression (p<0.0001) into muscle invasive T2-4 stages. The results show that GAL1 is an important bladder cancer-protein from several aspects. Further, GAL1 is a promising therapeutic target in bladder cancer due to the general expression in advanced disease.
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6.
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