Results 131 to 140 of about 35,040 (307)

Biomaterials for Reconstructive Treatment of Peri‐Implantitis

Journal of Periodontal Research, EarlyView.
Reconstructive therapy should be implemented in contained defects. Various bone filler materials with or without a barrier membrane and/or adjunctive biologics may be applied. ABSTRACT Peri‐implantitis is a pathological condition affecting the tissues surrounding dental implants, marked by inflammation of the peri‐implant connective tissue and ...
Ausra Ramanauskaite, Anton Sculean, Emilio A. Cafferata, Frank Schwarz   +3 more
wiley   +1 more source

The Seismic Signatures of Recently Formed Impact Craters on Mars. [PDF]

J Geophys Res Planets, 2019
Schmerr NC, Banks M, Daubar I.
europepmc   +1 more source

A Bioethical Assessment of the Environmental Impacts of War

Bioethics, EarlyView.
Funda Gülay Kadioglu
wiley   +1 more source

Matrix Metalloproteinases in Periodontal and Peri‐Implant Diseases: Contribution to Their Pathogenesis, Diagnosis, and Treatment

Journal of Periodontal Research, EarlyView.
This graphical abstract illustrates the role of matrix metalloproteinases (MMPs) across the pathogenesis, diagnosis, and therapeutics of periodontal and peri‐implant diseases. Microbial and host stimuli trigger MMP activation leading to extracellular matrix breakdown, point‐of‐care aMMP‐8 detection aids diagnosis, and adjunctive or AI‐assisted ...
Timo Sorsa, Lorne M. Golub, Julie Toby Thomas, Pietro Leone, Sukumaran Anil, Veli‐Jukka Uitto   +5 more
wiley   +1 more source

The missing large impact craters on Ceres. [PDF]

Nat Commun, 2016
Marchi S, Ermakov AI, Raymond CA, Fu RR, O'Brien DP, Bland MT, Ammannito E, De Sanctis MC, Bowling T, Schenk P, Scully JE, Buczkowski DL, Williams DA, Hiesinger H, Russell CT.   +14 more
europepmc   +1 more source

Noble gases and nitrogen in material from asteroid Bennu

Meteoritics &Planetary Science, EarlyView.
Abstract We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotopic ratios that were analyzed alongside neon and argon in four additional Bennu particles.
B. Marty, L. Zimmermann, E. Füri, D. V. Bekaert, J. J. Barnes, A. N. Nguyen, H. C. Connolly, D. S. Lauretta   +7 more
wiley   +1 more source

Determining impact angle from the spatial distribution of shock metamorphism: A case study of the Gosses Bluff (Tnorala) impact structure, Australia

Meteoritics &Planetary Science, EarlyView.
Abstract The majority of planetary impacts occur at oblique angles. Impact structures on Earth are commonly eroded or buried, rendering the identification of the direction and angle of impact—using methods such as asymmetries in ejecta distribution, surface topographic expression, central uplift structure, and geophysical anomalies—challenging. In this
Eloise E. Matthews, Auriol S. P. Rae, Thomas Kenkmann, Nicholas E. Timms, Aaron J. Cavosie, Marian B. Holness   +5 more
wiley   +1 more source

Paradigm lost: Venus crater depths and the role of gravity in crater modification [PDF]

Previous to Magellan, a convincing case had been assembled that predicted that complex impact craters on Venus were considerably shallower than their counterparts on Mars, Mercury, the Moon, and perhaps even Earth.
Sharpton, Virgil L.
core   +1 more source

Vertical profiling of shock attenuation at the Rochechouart impact structure, France

Meteoritics &Planetary Science, EarlyView.
Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of 725 sets of PDFs in 512 quartz grains in samples from four
P. Struzynska, S. Alwmark, C. Alwmark, M. H. Poelchau, P. Lambert   +4 more
wiley   +1 more source

Stability of granular media impacts morphological characteristics under different impact conditions

Open Astronomy
In planetary surfaces, oblique impact events are commonplace, and their study holds significant importance for understanding planetary impact processes and aiding in the design of landers and impactors.
Wang Yifeng, Li Ran, Chi Zhipeng, Yang Hui   +3 more
doaj   +1 more source