Results 121 to 130 of about 11,225 (291)

Prognostic Impact of European LeukemiaNet Genetic Risk Stratification System in Adult Patients With Acute Myeloid Leukemia

Aging and Cancer, EarlyView.
This study aimed to evaluate the prognostic value of ELN2017 in predicting survival outcomes and to assess the impact of clinical and molecular factors such as age, FLT3 and NPM1 mutations, and allogeneic hematopoietic stem cell transplantation (allo‐HSCT).
Mobina Shrestha, Bishwas Mandal, Vishal Mandal, Asis Shrestha, Amir Babu Shrestha   +4 more
wiley   +1 more source

A multi-radioisotope approach to dating sedimentation : applying Re-Os organic-rich shale and U-Pb authigenic xenotime dating to the Shannon and Pennine Basins

, 2013
THESIS 10282Sedimentary rocks are the most abundant hthologies on the Earth, covering over 70% of the planet?s surface. Quantitative dating of sedimentary rocks (especially those devoid of fossils) is critical to understanding the past events and rates ...
Stanislawska, Maja Anna
core  

Precise and accurate Re–Os isotope dating of organic-rich sedimentary rocks by thermal ionization mass spectrometry with an improved H2O2-HNO3 digestion procedure

, 2017
This contribution presents a new method for Re-Os isotope dating organic-rich sedimentary (ORS) rocks by thermal ionization mass spectrometry using an H2O2-HNO3 solution as the digestion medium, rather than CrO3-H2SO4 or inverse aqua regia.
Yin, Lu, Huaying Liang, Chao Li, Jie Li, Sun, Shengling, Jifeng Xu, Xu, Jifeng, Lu Yin, Li, Jie, Liu, Jingao, Liang, Huaying, Li, Chao, Shengling Sun, Jingao Liu   +13 more
core   +1 more source

Risk Prediction Models for Recurrence After Curative Treatment of Early‐Stage or Locally Advanced Lung Cancer: A Systematic Review

Aging and Cancer, EarlyView.
This systematic review synthesizes prognostic models for survival and recurrence in resected non‐small cell lung cancer. While many models demonstrate moderate to good discrimination, few are externally validated and reporting quality is variable, limiting clinical applicability and highlighting the need for robust, transparent model development ...
Evangeline Samuel, S. Tissera, E. Paul, J. Zalcberg, R. G. Stirling   +4 more
wiley   +1 more source

Amino acid racemization dating: Method development using African ostrich (Struthio camelus) eggshell [PDF]

, 2013
Ostrich eggshell (OES) is ubiquitous in archaeological sites in Africa and is a favoured substrate for amino acid racemisation (AAR) geochronology, yielding consistent results and thought to approximate a closed system with respect to protein diagenesis.
Crisp, Molly Katherine
core  

Re-Os age of molybdenite from the Hannivka deposit, Kryvyi Rih structure, Ukrainian Shield

Мінеральні ресурси України
This article presents the results of isotopic dating of molybdenite using the Re–Os method to determine the age of mineralization at the Hannivka deposit.
Yu. Ye. Khomych, V. V. Sukach, L. V. Shumlyanskyy, S. M. Bondarenko, V. O. Syomka, S. Tessalina, M. M. Reshetnyk   +6 more
doaj   +1 more source

Spinal Cord Infarction Versus Idiopathic Transverse Myelitis: Clinical, Radiological, and Functional Insights From a Retrospective Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji, Jianlong Zhang, Yiming Shi, Shiyu Shan, Yang Du, Guangshuo Li, Ying Jin, Yani Zhang, Chuanying Wang, Yijun Lin, Yuhao Guo, Decai Tian, Xingquan Zhao, Tian Song   +13 more
wiley   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source

新疆可可托海3号伟晶岩脉成岩时代的限定:来自辉钼矿Re-Os定年的证据/New age constraints on Koktokay pegmatite No.3 Vein, Altay Mountains, Xinjiang: Evidence from molybdenite Re-Os dating[J]

, 2012
可可托海3号伟晶岩脉因其完美的岩浆结晶分异特征而闻名世界,但针对其年代学方面的认识仍存在较大分歧.本次工作采集到产于3号脉边部带中的6件辉钼矿样品.其产出地质特征显示属于3号伟晶岩脉边部带形成时与围岩的热液交代成因,形成时间应与边部带近于同时或稍晚.文章利用辉钼矿Re-Os测年技术进行的年代学研究结果表明,6件辉钼矿Re-Os等时线年龄为(208.8±2.4) Ma(MSWD=0.89)以及模式年龄为(209.9±1.3) Ma(MSWD=0.69),在误差范围内一致,可忽略辉钼矿Re ...
李强, 中国地质科学院矿产资源研究所国土资源部成矿作用与资源评价重点实验室,北京,100037, ZHANG ZhiXin, 屈文俊, 中国科学院新疆生态与地理研究所新疆矿产资源研究中心,新疆乌鲁木齐,830011, LIU Feng, QU WenJun, LI Chao, 刘锋, 李超, 国家地质实验测试中心,北京,100037, 张志欣, LI Qiang   +12 more
core  

An improved Carius tube technique for determination of low concentrations of Re and Os in pyrites

, 2010
A simple and highly selective analytical method is developed for Re-Os dating in hydrothermal pyrites. Pyrites were first digested with HNO 3 in a 120 ml Carius tube.
Zhou, MF, Gao, J, Qi, L, Zhao, Z
core   +1 more source