Results 21 to 30 of about 1,533,430 (326)

HS-GC-IMS Analysis of Volatile Organic Compounds in Different Varieties and Harvesting Times of Rhizoma gastrodiae (Tian Ma) in Yunnan Province

open access: yesMolecules, 2023
Headspace–gas chromatography–ion mobility spectrometry (HS-GC-IMS) coupled with principal component analysis (PCA) was used to investigate the differences in volatile organic compounds (VOCs) in four different varieties of Yunnan Huang Tian Ma ...
Hao Duan   +3 more
doaj   +1 more source

Decreased Estimated Glomerular Filtration Rate (eGFR), Not Proteinuria, Is Associated with Asymptomatic Intracranial Arterial Stenosis in Chinese General Population

open access: yesScientific Reports, 2017
Abstarct The relationship between chronic kidney disease (CKD), which is defined by declined estimated glomerular filtration rate (eGFR) and/or proteinuria, and asymptomatic intracranial arterial stenosis (ICAS) is largely unknown.
Zhaoxia Li   +5 more
doaj   +1 more source

The efficacy of platelet-rich plasma applicated in spinal fusion surgery: A meta-analysis

open access: yesFrontiers in Surgery, 2022
ObjectiveThe purpose of this meta-analysis is to evaluate the effect of the application of platelet-rich plasma (PRP) in spinal fusion surgery on the fusion rate of the spine.MethodsA comprehensive search of the PubMed, Embase, Cochrane Library, and ...
Hongwei Yu   +7 more
doaj   +1 more source

Comparison of clinical features and stent placement outcomes between airway stenosis caused by primary pulmonary malignancies and that caused by primary non-pulmonary malignancies

open access: yesChinese Medical Journal, 2019
. Background:. Primary pulmonary malignancies (PPMs) and non-pulmonary malignancies (PNPMs) may result in airway stenosis requiring stenting. This study aimed to compare and evaluate the clinical features and stent placement outcomes of airway stenosis ...
Jin-Mu Niu   +7 more
doaj   +1 more source

Special Lagrangian submanifolds of log Calabi-Yau manifolds [PDF]

open access: yes, 2020
We study the existence of special Lagrangian submanifolds of log Calabi-Yau manifolds equipped with the complete Ricci-flat Kähler metric constructed by Tian-Yau.
Collins, Tristan   +2 more
core   +2 more sources

Research on the distribution of harmful substances in automotive products based on chemical quantitative [PDF]

open access: yesE3S Web of Conferences
At present, China's automotive industry lacks standardized standards and testing methods for conducting harmful substance testing and evaluation of products.This article finely disassembled a passenger car model and conducted detection and analysis of ...
Li Tian, Hou Meng, Yu Rujie, Sha Qian
doaj   +1 more source

In vitro cloning potential and phytochemical evaluations of aneuploid individuals produced from reciprocal crosses between diploid and triploid in Echinacea purpurea L.

open access: yesActa Societatis Botanicorum Poloniae, 2017
Aneuploidy often presents large variations in morphology, physiology, biochemistry, and genetics owing to karyotypic imbalance. This study aimed to evaluate the efficacy of aneuploid breeding in Echinacea purpurea L, an important medicinal plant ...
Qingling Li   +6 more
doaj   +1 more source

Idiopathic and radiation-induced myxofibrosarcoma in the head and neck—case report and literature review

open access: yesChinese Neurosurgical Journal, 2021
Background Myxofibrosarcoma (MFS), especially radiation-Induced MFS (RIMFS) in the head and neck, is an extremely rare malignant fibroblastic tumor. The diagnosis and treatment of MFS remain great challenges.
Bin Zhang   +3 more
doaj   +1 more source

Virtual moduli cycles and Gromov-Witten invariants of noncompact symplectic manifolds

open access: yes, 2006
This paper constructs and studies the Gromov-Witten invariants and their properties for noncompact geometrically bounded symplectic manifolds. Two localization formulas for GW-invariants are also proposed and proved.
Lu, Guangcun
core   +1 more source

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