Results 11 to 20 of about 14,278 (336)

Gemstone Inclusion Study by 3D Raman-Mapping and High-Resolution X-ray Computed Tomography: The Case of Trapiche Emerald from Swat, Pakistan

Crystals, 2022
Gemstones usually contain inclusions as the natural hallmark of their formation. Studies on inclusions may contribute to our understanding of the gem and better adapt to the gems and jewelry industry.
Yujie Gao, Mingyue He, Xu Li, Moqing Lin, Xueying Sun, Yanfang Zhang   +5 more
doaj   +2 more sources

LBA79 GEMSTONE-303: Prespecified progression-free survival (PFS) and overall survival (OS) final analyses of a phase III study of sugemalimab plus chemotherapy vs placebo plus chemotherapy in treatment-naïve advanced gastric or gastroesophageal junction (G/GEJ) adenocarcinoma

Annals of Oncology, 2023
Background GEMSTONE-303 is a randomized, double-blinded, multi-center phase 3 trial evaluating sugemalimab (suge), a full-length, fully human anti-PD-L1 mAb + CAPOX vs placebo + CAPOX as the first-line treatment for patients (pts) with advanced G ...
X. Zhang, J. Wang, G. Wang, Y. Zhang, Q. Fan, L. Chuangxin, C. Hu, M.L. Sun, Y. Wan, S. Sun, L. Zhang, Y. Shu, J. Luo, D. Zhu, H. Wang, Y. Xu, Q. Shi, J. Yang, L. Shen   +18 more
semanticscholar   +1 more source

Discrimination of HPHT-treated Type Ⅰa Cape Diamonds Using Optical and Photoluminescence Spectroscopic Techniques

Yankuang ceshi, 2020
BACKGROUND Spectroscopic characteristics for brown colored Type Ⅱa diamonds treated by high pressure high temperature (HPHT) processes have been investigated extensively.
SONG Zhong-hua, LU Tai-jin, TANG Shi, GAO Bo, SU Jun, KE Jie   +5 more
doaj   +1 more source

Spectroscopic Identification of Amber Imitations: Different Pressure and Temperature Treatments of Copal Resins

Crystals, 2021
Copal resins can be treated with heat and/or pressure to imitate ambers in the gem market. To explore the effects of different modification conditions on post-treatment spectral changes, five experimental methods with different temperature–pressure ...
Ting Zheng, Haibo Li, Taijin Lu, Xiaoming Chen, Bowen Li, Yingying Liu   +5 more
doaj   +1 more source

Sugemalimab Monotherapy for Patients With Relapsed or Refractory Extranodal Natural Killer/T-Cell Lymphoma (GEMSTONE-201): Results From a Single-Arm, Multicenter, Phase II Study

Journal of Clinical Oncology, 2023
PURPOSE Relapsed or refractory extranodal natural killer/T-cell lymphoma (R/R ENKTL) is a rare and aggressive type of non-Hodgkin lymphoma with limited treatment options. This phase II study evaluated the efficacy and safety of sugemalimab, an anti–PD-L1
Huiqiang Huang, R. Tao, S. Hao, Yu Yang, H. Cen, Hui Zhou, Ye Guo, L. Zou, Jun-ning Cao, Yunhong Huang, Jie Jin, Liling Zhang, Haiyan Yang, Xiao-Jin Xing, Huilai Zhang, Yanyan Liu, K. Ding, Q. Qi, Xiaoli Zhu, D. Zhu, Siyuan Wang, T. Fang, H. Dai, Qingmei Shi, Jason Yang   +24 more
semanticscholar   +1 more source

First-Line Sugemalimab Plus Chemotherapy for Advanced Gastric Cancer: The GEMSTONE-303 Randomized Clinical Trial.

JAMA
Importance Gastric cancer, including gastroesophageal junction cancer, is one of the most commonly diagnosed cancers worldwide, with high mortality. Sugemalimab is a fully human anti-programmed death-ligand 1 (PD-L1) antibody.
Zhang X, Wang J, Wang G, Zhang Y, Fan Q, Lu C, Hu C, Sun M, Wan Y, Sun S, Wang J, Zhang L, Shu Y, Luo J, Zhu D, Shen Z, Yao S, Shi Q, Yang J, Shen L, GEMSTONE-303 Investigators.   +20 more
europepmc   +2 more sources

Analysis of Crystallinity and Physical Properties of the Bio-solar Gemstone

Aceh International Journal of Science and Technology, 2020
– Bio-solar is one of the natural gemstones found in the province of Aceh in Indonesia. A recent study suggested that this gemstone could be considered as a vesuvianite type of gemstone.
Ismail Ismail, Akmal NIzar, Murzal ., Zulkarnain Jalil   +3 more
doaj   +1 more source

Identification of Jadeite Filled with Inorganic Materials Using UV Fluorescence, Infrared Spectroscopy and LIBS Techniques

Yankuang ceshi, 2022
BACKGROUND Through visiting the jadeite market, the existence of inorganic material-filled jadeite is known, but there is a lack of identification basis due to rare references.
YANG Chunmei, HUANG Ziyun, QIN Jingwen, LU Zhenping, LU Taijin, TANG Ziwei   +5 more
doaj   +1 more source

Problems Faced by Online Gemstone Traders of NamakMandi market at Pakistani Airports

Journal of Business and Social Review in Emerging Economies, 2023
Purpose: This paper analyses the views and experiences of gemstone traders at the NamakMandi (NM) gemstone market. Methodology: The paper draws on the data from a stakeholder’s workshop held at Bacha Khan University Charsadda (Pakistan) and ten (10 ...
Syed Owais, Arshad khan Bangash, Javaria Raza   +2 more
doaj   +1 more source

The Spectral Characteristics and Identification Techniques for Colorless and Near-colorless HPHT Synthetic Diamonds

Yankuang ceshi, 2016
Melee-sized colorless HPHT synthetic diamonds mixed with natural diamonds in jewellery have been reported by gem testing laboratory. It was noted that the differences of the fluorescence and phosphorescence between natural and synthetic diamonds are the ...
SONG Zhong-hua, LU Tai-jin, SU Jun, GAO Bo, TANG Shi, HU Ning, KE Jie, ZHANG Jun   +7 more
doaj   +1 more source