Results 111 to 120 of about 3,703 (248)

Visible, near‐, and thermal infrared spectra of asteroid Bennu samples: Relationship to and implications for remote sensing of carbonaceous asteroids

Meteoritics &Planetary Science, EarlyView.
Abstract Remote spectroscopy is used to characterize the mineralogy and infer the history of planetary bodies. Carbonaceous asteroids, such as B‐type (101955) Bennu, represent the earliest stages of planet formation. B types have a blue (negative) spectral slope and comprise <5% of asteroids.
V. E. Hamilton, E. A. Cloutis, R. E. Milliken, P. Haenecour, D. R. Golish, K. J. Domanik, T. J. McCoy, L. P. Keller, A. A. Simon, H. H. Kaplan, C. A. Goodrich, S. A. Sandford, D. Applin, T. Hiroi, D. H. Hill, N. G. Lunning, F. M. McCubbin, S. A. Eckley, C. J. Snead, E. H. Blumenfeld, J. E. Aebersold, C. Schultz, N. Bowles, K. A. Shirley, S. S. Russell, J. J. Barnes, T. J. Zega, D. N. DellaGiustina, A. J. Ryan, D. P. Glavin, J. P. Dworkin, H. C. Connolly Jr., D. S. Lauretta   +32 more
wiley   +1 more source

The role of composition in the spectral evolution of carbonaceous asteroids as informed by Bennu sample return

Meteoritics &Planetary Science, EarlyView.
Abstract Near‐Earth rubble‐pile asteroids Bennu and Ryugu are part of the carbonaceous taxonomic complex (C‐complex), and samples returned from both bodies resemble the most aqueously altered carbonaceous chondrites. However, telescopic and spacecraft visible–near infrared (VIS–NIR) reflectance spectra of Ryugu exhibit a red (positive) spectral slope ...
Ralph E. Milliken, Takahiro Hiroi, Victoria E. Hamilton, Cody D. Schultz, Ed A. Cloutis, Hannah H. Kaplan, Melissa K. Kontogiannis, Nathalia Vega‐Santiago, Dani N. DellaGiustina, Harold C. Connolly Jr., Dante S. Lauretta   +10 more
wiley   +1 more source

Mineralogy, mineral chemistry, and redox equilibria in ten aggregate particles from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract Examination of 10 Bennu aggregate particles has revealed the presence of many phases which taken together can provide constraints on the oxygen fugacity (fO2) of Bennu samples. Phyllosilicates (saponite and serpentine), carbonates, oxides (magnetite, chromite), sulfides (pyrrhotite, pentlandite), phosphate (hydroxyapatite, Na‐Mg‐phosphate ...
K. Righter, J. Gorce, L. Le, K. Thomas‐Keprta, Z.E. Wilbur, L.P. Keller, Z. Gainsforth, T.J. McCoy, T.J. Zega, S.S. Russell, H.C. Connolly Jr., D.S. Lauretta   +11 more
wiley   +1 more source

The uncomfortable science in the womb: How biological experience disrupts surrogacy narratives

Medical Anthropology Quarterly, EarlyView.
Abstract The discourse surrounding surrogacy portrays pregnancy as a temporary process, depicting surrogates as neutral “carriers” whose involvement concludes at birth. This narrative minimizes gestation's biological significance despite evidence of its lasting effects on both women and children.
Orit Chorowicz Bar‐Am, Elly Teman, Yael Hashiloni‐Dolev   +2 more
wiley   +1 more source

The extensions of weak McCoy rings(弱McCoy环的扩张)

Zhejiang Daxue xuebao. Lixue ban, 2014
讨论弱McCoy环与相关环的关系，研究环的多项式扩张和Ore扩张的弱McCoy性，证明了 ：(1)设R是右Ore环,则R是右弱McCoy环当且仅当R的典范右商环Q是右弱McCoy环；(2)如果R是（α，δ)-compatible的可逆环，则R[x;α,δ]是右弱McCoy环.
WANGYao(王尧), RENYanli(任艳丽), LIXiaowei(李晓伟)   +2 more
openaire   +1 more source

Morpho‐anatomical and genetic variation of Lithophyllum neo‐okamurae and L. okamurae (Corallinales, Corallinophycidae, Rhodophyta) from Jeju Island, Korea

Phycological Research, EarlyView.
SUMMARY Lithophyllum Philippi (Corallinales, Corallinophycidae, Rhodophyta) is a diverse genus of non‐geniculate coralline algae. Lithophyllum neo‐okamurae and L. okamurae are commonly found in the intertidal and subtidal zones of Jeju Island, Korea, where they contribute to local benthic communities.
Kyeong‐Tae Lee, Mi Yeon Yang, Jeong Chan Kang, Myung Sook Kim   +3 more
wiley   +1 more source

Beyond Deflection: Accountability Frames in Opinion Columns*

Sociological Inquiry, EarlyView.
The ways in which public officials, citizens, and social institutions are held accountable for social problems, including police‐involved killings in the United States, reflect changing attributions of responsibility. Although news reports now rely less on official police narratives and less often stereotype police as heroes and victims as villains ...
Deborah A. Potter
wiley   +1 more source

Comparative Response of Canine and Human Osteosarcoma Tumour Cell Lines to Molecularly Targeted Anticancer Agents at Clinically Relevant Exposures With Analysis of Genomic Biomarkers

Veterinary and Comparative Oncology, EarlyView.
ABSTRACT Osteosarcoma (OSA) is a primary bone tumour occurring in children but is also prevalent in large breed dogs. Canine OSA (cOSA) has long been viewed as analogous to human OSA (hOSA) with cOSA serving as a surrogate for development of therapeutic approaches to treat the rarer human form.
Daniel L. Gustafson, Kala A. Early, Maritza A. Morales, Klaudia A. Poplawski, Sunetra Das, Dawn L. Duval   +5 more
wiley   +1 more source

On Nilpotent Elements, Weak Symmetry and Related Properties of Skew Generalized Power Series Rings

The skew generalized power series ring R[[S,ω]] is a ring construction involving a ring R, a strictly ordered monoid (S,≤), and a monoid homomorphism ω:S→End(R).
Ryszard Mazurek
core   +1 more source

Quantitative Imaging of Pyruvate Metabolism in a Patient With Anaplastic Thyroid Cancer

Magnetic Resonance in Medicine, Volume 96, Issue 2, Page 826-838, August 2026.
ABSTRACT Purpose Magnetic resonance imaging using hyperpolarized (HP) [1‐13C]‐pyruvate enables assessment of pyruvate metabolism in vivo and offers new insight into metabolic changes in response to cancer therapy. Widely used semi‐quantitative metrics of pyruvate metabolism can be affected by physiological factors that are extrinsic to intracellular ...
James A. Bankson, Joshua S. Niedzielski, Collin J. Harlan, Yunyun Chen, Christopher M. Walker, Philip L. Lorenzi, Lin Tan, Vikas Kundra, Matthew E. Merritt, Mukundan Ragavan, Dawid Schellingerhout, Renjie He, Yao Ding, Sahana Datar, Qing Wang, Christine B. Peterson, Clifton D. Fuller, Vlad C. Sandulache, Stephen Y. Lai   +18 more
wiley   +1 more source