Results 51 to 60 of about 68,798 (308)

Outcomes and Surgical Management of Malignant Rhabdoid Tumor of the Kidney: A Report From the Pediatric Surgical Oncology Research Collaborative

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Malignant rhabdoid tumor of the kidney (MRTK) is a rare, aggressive tumor seen in young children. The optimal timing of resection for locally advanced tumors is not well‐defined. The purpose of this study is to evaluate modern oncologic outcomes and the impact of surgical timing. Methods A multicenter retrospective review was performed
Hannah N. Rinehardt, Elisabeth T. Tracy, Anghela Paredes, Catherine Beckhorn, Harold J. Leraas, Joseph Fusco, Katlyn G. McKay, Nelly‐Ange T. Kontchou, Zachary J. Kastenberg, David W. Hoyt, Jonathan Roach, Emily K. Myers, Nicholas G. Cost, Bhargava Mullapudi, Charles R. Marchese, Amanda R. Jensen, Timothy B. Lautz, Michela Carter, Roshni Dasgupta, John Lundstedt, Joseph G. Brungardt, Lindsay Talbot, Andrew M. Davidoff, Andrew J. Murphy, Jennifer H. Aldrink, Sara Mansfield, Nelson Piche, Annie Le‐Nguyen, Dave R. Lal, Brian T. Craig, Jennifer M. Schuh, Barrett P. Cromeens, Sindhu Mannava, Shannon Castle, Adriana Lopez, Kelsey Mello, Joshua Short, Robin T. Petroze, Shay Rajaval, Grace R. Thompson, Peter Mattei, David H. Rothstein, Elizabeth Fialkowski, Kathryn Fowler, Nathan Martchenke, Barrie S. Rich, Richard D. Glick, Erin G. Brown, Kathleen Doyle, Paige Abril, Natashia Seemann, Jacob Davidson, Claire A. Wilson, Hau D. Le, Devashish Joshi, Michael Stellon, Tamer Ahmed, Alexandra Dimmer, Peter F. Ehrlich, Maya Hammoud, Keyonna Williams, Christa N. Grant, Merit Gorgy, Stephanie F. Polites, Julia Debertin, Danielle B. Cameron, Alyssa Stetson, Eugene S. Kim, William G. Lee, Aaron Barkhordar, Mary Austin, Brian A. Coakley, Anastasia Kahan, Joseph T. Murphy, Michael Pitonak, Chloé Boehmer, Marcus M. Malek   +76 more
wiley   +1 more source

High Spatial Resolution U-Pb Dating of Low-Uranium Calcite Using LA-MC-ICP-MS

Yankuang ceshi
The combination of carbonate minerals with the U-Pb isotope dating system provides direct temporal constraints for geoscientific applications. LA-MC-ICP-MS with its high sensitivity and accuracy, has been successfully applied to the high spatial ...
Chenxi ZHANG, Yuxin XIONG, Jiali FU, Wei ZHAO, Lei SHU, Zengsheng LI, Jun XU, Changxiang ZHOU, Fei HONG   +8 more
doaj   +1 more source

MYCN Amplification in RB1‐Inactivated Retinoblastoma: Association With High‐Risk Features

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background MYCN amplification occurs in a subset of retinoblastoma cases, both with and without RB1 inactivation. It has been suggested that retinoblastomas with MYCN amplification represent a distinct entity with more aggressive clinical behavior.
Kyriaki Papaioannou, Regina Kubica, Karen Fischhuber, Jasmin Beygo, Madlen Reschke, Petra Ritter‐Sovinz, Eva Biewald, Petra Ketteler, Dietmar Lohmann, Deniz Kanber   +9 more
wiley   +1 more source

U‐Pb Geochronology of Paleosol Carbonate Cements by LA‐ICP‐MS: A Proof of Concept and Strategy for Dating the Terrestrial Record

Geochemistry, Geophysics, Geosystems
This study investigates the potential of laser ablation inductively coupled plasma mass spectrometry (LA‐ICP‐MS) U‐Pb dating for carbonate nodules in the Late Triassic Ischigualasto Formation of northwestern Argentina.
L. E. Aguirre Palafox, A. Möller, N. M. McLean, G. A. Ludvigson, C. E. Colombi, I. P. Montañez   +5 more
doaj   +1 more source

U–Th whole rock data and high spatial resolution U–Th disequilibrium and U–Pb zircon ages of Mt. Erciyes and Mt. Hasan Quaternary stratovolcanic complexes (Central Anatolia)

Data in Brief, 2020
Thirty-eight lava and pyroclastic samples were collected from Mt. Erciyes and Mt. Hasan, the two largest stratovolcanic complexes of the Central Anatolian Volcanic Province in Turkey.
Bjarne Friedrichs, Axel K. Schmitt, Lucy McGee, Simon Turner   +3 more
doaj   +1 more source

U-Pb LA-ICP-MS DATING OF DETRITAL ZIRCON FROM UPPER PERMIAN SANDSTONE OF THE BOYEVAYA GORA SECTION (ORENBURG REGION, SOUTHERN CIS-URALS)

Геодинамика и тектонофизика, 2022
The first results of U-Pb LA-ICP-MS dating of 150 detrital zircon grains from the Upper Permian sandstone of the Boyevaya Gora section (Orenburg region, the Southern Cis-Urals) are presented. 95 conditional zircon U-Pb isotopic dates form two age peaks –
A. V. Chistyakova, A. V. Ivanov, N. V. Bryanskiy, R. V. Veselovskiy, T. I. Golovanova, V. K. Golubev   +5 more
doaj   +1 more source

U–Pb and Th–Pb dating of apatite by LA-ICPMS [PDF]

Chemical Geology, 2011
Abstract Apatite is a common U- and Th-bearing accessory mineral in igneous and metamorphic rocks, and a minor but widespread detrital component in clastic sedimentary rocks. U–Pb and Th–Pb dating of apatite has potential application in sedimentary provenance studies, as it likely represents first cycle detritus compared to the polycyclic behavior of
David M. Chew, Paul J. Sylvester, Mike N. Tubrett   +2 more
openaire   +3 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Age Determination of Gem-Quality Green Vanadium Grossular (Var. Tsavorite) from the Neoproterozoic Metamorphic Mozambique Belt, Kenya and Tanzania

Crystals
Gem-quality garnets, with their high closure temperature (750–800 °C), high transparency, uniform composition, and purity, offer promising prospects for U-Pb dating.
Siyi Zhao, Bo Xu, Yi Zhao
doaj   +1 more source

Laser ablation in situ U-Pb dating and its application to diagenesis-porosity evolution of carbonate reservoirs

Petroleum Exploration and Development, 2019
Through the development and calibration of a reference material which is 209.8 Ma old using a newly-developed Laser Ablation (LA) Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICP-MS) technique, we successfully overcome the difficulty ...
Anjiang SHEN, Anping HU, Ting CHENG, Feng LIANG, Wenqing PAN, Yuexing FENG, Jianxin ZHAO   +6 more
doaj   +1 more source