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  1. Book: Quan ke zhen jiu xiao fang ji

    Xu, Kexin

    2002  

    Title translation Collection of acupuncture therapy for all specialties.
    Author's details Xu Kexin bian zhu
    MeSH term(s) Acupuncture Therapy/methods ; Medicine, Chinese Traditional
    Language Chinese
    Size 2, 7, 470 p. :, ill. ;, 21 cm.
    Edition Di 1 ban.
    Publisher Ren min wei sheng chu ban she
    Publishing place Beijing Shi
    Document type Book
    ISBN 9787117047395 ; 7117047399
    Database Catalogue of the US National Library of Medicine (NLM)

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  2. Article: Spatial distribution pattern and correlation of dominant populations in the shrub layer of Fengshui forest in Leizhou Peninsula, China.

    Chen, Cai / Tang, Guang-da / Dong, Xiao-Quan / Xu, Song-Jun

    Ying yong sheng tai xue bao = The journal of applied ecology

    2024  Volume 35, Issue 2, Page(s) 371–380

    Abstract: To elucidate the spatial patterns of understory species in fragmented forests adjacent to human settlements, we examined the spatial distribution and intraspecific correlations of three dominant ... ...

    Title translation 雷州半岛风水林灌木层优势种群空间分布格局与关联性.
    Abstract To elucidate the spatial patterns of understory species in fragmented forests adjacent to human settlements, we examined the spatial distribution and intraspecific correlations of three dominant species
    MeSH term(s) Humans ; Forests ; Trees ; Ecosystem ; China ; Plants
    Language English
    Publishing date 2024-03-24
    Publishing country China
    Document type Journal Article
    ZDB-ID 2881809-X
    ISSN 1001-9332
    ISSN 1001-9332
    DOI 10.13287/j.1001-9332.202402.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Effect of Hashimoto's thyroiditis on the dual-energy CT quantitative parameters and performance in diagnosing metastatic cervical lymph nodes in patients with papillary thyroid cancer.

    Geng, Di / Zhou, Yan / Shang, Ting / Su, Guo-Yi / Lin, Shu-Shen / Si, Yan / Wu, Fei-Yun / Xu, Xiao-Quan

    Cancer imaging : the official publication of the International Cancer Imaging Society

    2024  Volume 24, Issue 1, Page(s) 10

    Abstract: Background: To evaluate the effect of Hashimoto's thyroiditis (HT) on dual-energy computed tomography (DECT) quantitative parameters of cervical lymph nodes (LNs) in patients with papillary thyroid cancer (PTC), and its effect on the diagnostic ... ...

    Abstract Background: To evaluate the effect of Hashimoto's thyroiditis (HT) on dual-energy computed tomography (DECT) quantitative parameters of cervical lymph nodes (LNs) in patients with papillary thyroid cancer (PTC), and its effect on the diagnostic performance and threshold of DECT in preoperatively identifying metastatic cervical LNs.
    Methods: A total of 479 LNs from 233 PTC patients were classified into four groups: HT+/LN+, HT+/LN-, HT-/LN + and HT-/LN - group. DECT quantitative parameters including iodine concentration (IC), normalized IC (NIC), effective atomic number (Z
    Results: The HT+/LN + group exhibited lower values of DECT parameters than the HT-/LN + group (all p < 0.05). Conversely, the HT+/LN - group exhibited higher values of DECT parameters than the HT-/LN - group (all p < 0.05). In the HT + group, if an AP-IC of 1.850 mg/mL was used as the threshold value, then the optimal diagnostic performance (area under the curve, 0.757; sensitivity, 69.4%; specificity, 71.0%) could be obtained. The optimal threshold value of AP-IC in the HT - group was 2.050 mg/mL. In contrast, in the HT - group, AP-NIC demonstrated the highest area under the curve of 0.988, when an optimal threshold of 0.243 was used. The optimal threshold value of AP-NIC was 0.188 in the HT + group.
    Conclusions: HT affected DECT quantitative parameters of LNs and subsequent the diagnostic thresholds. When using DECT to diagnose metastatic LNs in patients with PTC, whether HT is coexistent should be clarified considering the different diagnostic thresholds.
    MeSH term(s) Humans ; Thyroid Cancer, Papillary/complications ; Thyroid Cancer, Papillary/pathology ; Lymph Nodes/diagnostic imaging ; Lymph Nodes/pathology ; Iodine ; Thyroid Neoplasms/diagnostic imaging ; Thyroid Neoplasms/pathology ; Tomography, X-Ray Computed/methods ; Thyroiditis/complications ; Thyroiditis/pathology ; Retrospective Studies
    Chemical Substances Iodine (9679TC07X4)
    Language English
    Publishing date 2024-01-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 2104862-9
    ISSN 1470-7330 ; 1470-7330
    ISSN (online) 1470-7330
    ISSN 1470-7330
    DOI 10.1186/s40644-024-00655-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Preparation and characterization of spherical cellulose nanocrystals with high purity by the composite enzymolysis of pulp fibers.

    Xu, Jia-Tong / Chen, Xiao-Quan

    Bioresource technology

    2019  Volume 291, Page(s) 121842

    Abstract: The spherical cellulose nanocrystals (CNCs) with high purity were prepared, the processes included composite enzymolysis of pulp fibers and the purification of product. The impurities in the crude product CNCs were analyzed with FTIR, coomassie brilliant ...

    Abstract The spherical cellulose nanocrystals (CNCs) with high purity were prepared, the processes included composite enzymolysis of pulp fibers and the purification of product. The impurities in the crude product CNCs were analyzed with FTIR, coomassie brilliant blue-G250 and ionic chromatography. The pure CNCs were characterized with SEM, XRD, DLS and TGA. The results indicated that the crude CNCs was flocculated and washed twice with a dilute acid solution (pH = 2) to get pure spherical CNCs, the purity was approximate 99.99%. The obtained pure spherical CNCs had a narrow particle size distribution with diameter 15-40 nm. FTIR and XRD analyses proved that the crystal phase of the spherical CNCs did not change, but the crystallinity decreased slightly compared with pulp fibers. The thermal degradation showed that the spherical CNCs had better thermal stability than one from other methods, and the temperature of maximum weight loss rate (T
    MeSH term(s) Cellulose/chemistry ; Hot Temperature ; Nanoparticles/chemistry ; Paper ; Spectroscopy, Fourier Transform Infrared
    Chemical Substances Cellulose (9004-34-6)
    Language English
    Publishing date 2019-07-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 1065195-0
    ISSN 1873-2976 ; 0960-8524
    ISSN (online) 1873-2976
    ISSN 0960-8524
    DOI 10.1016/j.biortech.2019.121842
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Effects of climate change on richness distribution patterns of threatened conifers endemic to China

    Dan Xie / Hong Du / Wei-Hua Xu / Jin-Hua Ran / Xiao-Quan Wang

    Ecological Indicators, Vol 136, Iss , Pp 108594- (2022)

    2022  

    Abstract: Climate change inevitably affects the geographical distribution of species on earth. Conifers, which are important components of forest tree species, are highly threatened and particularly sensitive to climate change. Approximately 23.6% (145/615 species) ...

    Abstract Climate change inevitably affects the geographical distribution of species on earth. Conifers, which are important components of forest tree species, are highly threatened and particularly sensitive to climate change. Approximately 23.6% (145/615 species) of the world’s conifers are native to China, among which 53 species are threatened. Thus, understanding the impact of climate change on the species richness and distribution of threatened conifers endemic to China (hereafter referred to as threatened conifers) is of great importance. Here, we investigated the habitat suitability under present climate conditions and predicted the impact of future climate change on these threatened conifers using species distribution modeling. Combined with the current natural reserve system, we evaluated the conservation effectiveness, determined the key conservation areas, and proposed suggestions for the future protection of these threatened conifers. Our results showed that the threatened conifers were mainly distributed in mountainous areas and climate variables played a major role in the distribution of these threatened conifers. We also found that the richness hotspots were predicted to shrink and move northward with a changing climate. The lowest elevation of threatened conifers predicted to contract their species range mainly occurred below 1000 m or above 2000 m, while most species whose lowest elevations ranged from 1000 to 2000 m were projected to expand their distribution areas under the future climate scenario. Therefore, different conservation measures should be taken for threatened conifers with different distribution patterns. The central Hengduan Mountains and the Western Sichuan Plateau were identified as “areas needing attention” and “areas worth exploring”, respectively, which should be given more attention in future field surveys and conservation efforts. This study highlighted the critical role of these threatened conifers as good indicators for measuring and proposing conservation strategies to minimize ...
    Keywords Species distribution model ; Range shift ; Habitat suitability ; Nature reserve ; Conservation measures ; Western Sichuan Plateau ; Ecology ; QH540-549.5
    Subject code 333
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Texture analysis of diffusion kurtosis imaging for differentiating malignant from benign sinonasal lesions: added value to conventional imaging features.

    Su, Guo-Yi / Xu, Yong-Kang / Liu, Jun / Hu, Hao / Lu, Mei-Ping / Yin, Min / Xu, Xiao-Quan / Wu, Fei-Yun

    The British journal of radiology

    2023  Volume 96, Issue 1144, Page(s) 20220806

    Abstract: Objectives: To evaluate the performance of texture analysis (TA) of diffusion kurtosis imaging (DKI) in differentiating malignant from benign sinonasal lesions, and its added value to the conventional imaging features.: Methods: Fifty-eight patients ... ...

    Abstract Objectives: To evaluate the performance of texture analysis (TA) of diffusion kurtosis imaging (DKI) in differentiating malignant from benign sinonasal lesions, and its added value to the conventional imaging features.
    Methods: Fifty-eight patients with malignant and 40 patients with benign sinonasal lesions were retrospectively enrolled. Conventional CT and MRI features were reviewed. Texture parameters were obtained and compared between two groups. Multivariate logistic regression analysis was used to identify the most valuable variables. Receiver operating characteristic curves were performed to assess the differentiating performance of independent variables and their combination.
    Results: There were significant differences in tumor necrosis, bone erosion and soft tissue invasion between the two groups (all
    Conclusion: TA of DKI could supply incremental value to conventional imaging features for pre-operative differential diagnosis between benign and malignant sinonasal lesions.
    Advances in knowledge: The present study is the first to combine conventional imaging features and the TA of DKI in the differential diagnosis between benign and malignant sinonasal lesions. Our findings suggest that TA of DKI could supply incremental value to conventional imaging features.
    MeSH term(s) Humans ; Sensitivity and Specificity ; Retrospective Studies ; Diffusion Tensor Imaging ; Diffusion Magnetic Resonance Imaging/methods ; ROC Curve ; Diagnosis, Differential
    Language English
    Publishing date 2023-02-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 2982-8
    ISSN 1748-880X ; 0007-1285
    ISSN (online) 1748-880X
    ISSN 0007-1285
    DOI 10.1259/bjr.20220806
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Effect of Truncal-Type Occlusion Based on Multiphase or Single-Phase Computed Tomographic Angiography in Predicting Intracranial Atherosclerotic Stenosis-Related Acute Middle Cerebral Artery Occlusion.

    Xu, Zhi-Jia / Cao, Yue-Zhou / Zhao, Lin-Bo / Jia, Zhen-Yu / Lu, Shan-Shan / Xu, Xiao-Quan / Shi, Hai-Bin / Liu, Sheng

    Journal of computer assisted tomography

    2023  Volume 47, Issue 4, Page(s) 671–676

    Abstract: Objective: To investigate whether truncal-type occlusion based on multiphase computed tomographic angiography (mpCTA) was more effective for predicting intracranial atherosclerotic stenosis-related occlusion (ICAS-O) than occlusion type based on single- ... ...

    Abstract Objective: To investigate whether truncal-type occlusion based on multiphase computed tomographic angiography (mpCTA) was more effective for predicting intracranial atherosclerotic stenosis-related occlusion (ICAS-O) than occlusion type based on single-phase computed tomographic angiography (spCTA) in patients with acute ischemic stroke with large-vessel occlusion (AIS-LVO) in the middle cerebral artery (MCA).
    Methods: Data were retrospectively collected from 72 patients with AIS-LVO in the MCA between January 2018 and December 2019. The occlusion types included truncal-type and branching-site occlusions. The association between ICAS-O and occlusion type based on the 2 computed tomographic angiography patterns was analyzed, and receiver operating characteristic curves were plotted for assessment. The areas under the curve were compared to determine the difference between the predictive powers of truncal-type occlusion based on mpCTA and spCTA.
    Results: Among the 72 patients, 16 were classified as having ICAS-O and 56 as having embolisms. In univariate analysis, truncal-type occlusion was significantly associated with ICAS-O ( P < 0.001 for mpCTA and P = 0.001 for spCTA). After multivariable analysis, truncal-type occlusion based on both mpCTA and spCTA remained independently associated with ICAS-O ( P = 0.002 for mpCTA and P = 0.029 for spCTA). The areas under the curve were 0.821 for mpCTA and 0.683 for spCTA; this difference was statistically significant ( P = 0.024).
    Conclusions: In patients with AIS-LVO in the MCA, truncal-type occlusion based on mpCTA enables more accurate detection of ICAS-O than that based on spCTA.
    MeSH term(s) Humans ; Infarction, Middle Cerebral Artery/diagnostic imaging ; Stroke/complications ; Retrospective Studies ; Constriction, Pathologic/diagnostic imaging ; Constriction, Pathologic/complications ; Ischemic Stroke ; Cerebral Angiography/methods ; Intracranial Arteriosclerosis/complications ; Intracranial Arteriosclerosis/diagnostic imaging ; Middle Cerebral Artery/diagnostic imaging
    Language English
    Publishing date 2023-06-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80392-3
    ISSN 1532-3145 ; 0363-8715
    ISSN (online) 1532-3145
    ISSN 0363-8715
    DOI 10.1097/RCT.0000000000001447
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: A resting-state functional magnetic resonance imaging study of altered functional brain activity in cardiac arrest survivors with good neurological outcome.

    Wu, Qian / Wang, Gan-Nan / Hu, Hao / Chen, Xu-Feng / Xu, Xiao-Quan / Zhang, Jin-Song / Wu, Fei-Yun

    Frontiers in neurology

    2023  Volume 14, Page(s) 1136197

    Abstract: Purpose: To investigate the spontaneous brain activity alterations in survivors of cardiac arrest (CA) with good neurological outcome using resting-state functional magnetic resonance imaging (rs-fMRI) with amplitude of low-frequency fluctuation (ALFF) ... ...

    Abstract Purpose: To investigate the spontaneous brain activity alterations in survivors of cardiac arrest (CA) with good neurological outcome using resting-state functional magnetic resonance imaging (rs-fMRI) with amplitude of low-frequency fluctuation (ALFF) and regional homogeneity (ReHo) methods.
    Materials and methods: Thirteen CA survivors with favorable neurological outcomes and 13 healthy controls (HCs) were recruited and underwent rs-fMRI scans. The ALFF and ReHo methods were applied to assess the regional intensity and synchronization of spontaneous brain activity. Correlation analyses were performed to explore the relationships between the mean ALFF and ReHo values in significant clusters and clinical parameters.
    Results: The survivors of CA showed significantly decreased ALFF values in the left postcentral gyrus and precentral gyrus and increased ALFF values in the left hippocampus and parahippocampal gyrus than HCs. Significantly decreased ReHo values were observed in the left inferior occipital gyrus and middle occipital gyrus in the patients. Mean ALFF values in the left hippocampus and parahippocampal gyrus were positively correlated with the time to return of spontaneous circulation (r = 0.794,
    Conclusion: Functional activity alterations in the brain areas corresponding to known cognitive and physical impairments were observed in CA survivors with preserved neurological function. Our results could advance the understanding of the neurological mechanisms underlying the residual deficits in those patients.
    Language English
    Publishing date 2023-04-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2564214-5
    ISSN 1664-2295
    ISSN 1664-2295
    DOI 10.3389/fneur.2023.1136197
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Effects of climate change on richness distribution patterns of threatened conifers endemic to China

    Xie, Dan / Du, Hong / Xu, Wei-Hua / Ran, Jin-Hua / Wang, Xiao-Quan

    Ecological indicators. 2022 Mar., v. 136

    2022  

    Abstract: Climate change inevitably affects the geographical distribution of species on earth. Conifers, which are important components of forest tree species, are highly threatened and particularly sensitive to climate change. Approximately 23.6% (145/615 species) ...

    Abstract Climate change inevitably affects the geographical distribution of species on earth. Conifers, which are important components of forest tree species, are highly threatened and particularly sensitive to climate change. Approximately 23.6% (145/615 species) of the world’s conifers are native to China, among which 53 species are threatened. Thus, understanding the impact of climate change on the species richness and distribution of threatened conifers endemic to China (hereafter referred to as threatened conifers) is of great importance. Here, we investigated the habitat suitability under present climate conditions and predicted the impact of future climate change on these threatened conifers using species distribution modeling. Combined with the current natural reserve system, we evaluated the conservation effectiveness, determined the key conservation areas, and proposed suggestions for the future protection of these threatened conifers. Our results showed that the threatened conifers were mainly distributed in mountainous areas and climate variables played a major role in the distribution of these threatened conifers. We also found that the richness hotspots were predicted to shrink and move northward with a changing climate. The lowest elevation of threatened conifers predicted to contract their species range mainly occurred below 1000 m or above 2000 m, while most species whose lowest elevations ranged from 1000 to 2000 m were projected to expand their distribution areas under the future climate scenario. Therefore, different conservation measures should be taken for threatened conifers with different distribution patterns. The central Hengduan Mountains and the Western Sichuan Plateau were identified as “areas needing attention” and “areas worth exploring”, respectively, which should be given more attention in future field surveys and conservation efforts. This study highlighted the critical role of these threatened conifers as good indicators for measuring and proposing conservation strategies to minimize the impacts of climate change.
    Keywords climate change ; forest trees ; geographical distribution ; habitats ; mountains ; species richness ; China
    Language English
    Dates of publication 2022-03
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2036774-0
    ISSN 1872-7034 ; 1470-160X
    ISSN (online) 1872-7034
    ISSN 1470-160X
    DOI 10.1016/j.ecolind.2022.108594
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Altered interhemispheric functional connectivity in patients with comitant exotropia before and after surgery: a resting-state fMRI study.

    Chen, Xiang-Xun / Chen, Wen / Hu, Hao / Zhao, Meng / Liu, Hu / Xu, Xiao-Quan / Wu, Fei-Yun / Wang, Jie

    Frontiers in human neuroscience

    2023  Volume 17, Page(s) 1095431

    Abstract: Purpose: To assess the interhemispheric homotopic connectivity alterations in patients with comitant exotropia (CE) before and after surgery, using resting-state functional magnetic resonance imaging (rs-fMRI) with voxel-mirrored homotopic connectivity ( ...

    Abstract Purpose: To assess the interhemispheric homotopic connectivity alterations in patients with comitant exotropia (CE) before and after surgery, using resting-state functional magnetic resonance imaging (rs-fMRI) with voxel-mirrored homotopic connectivity (VMHC).
    Methods: Thirty-four patients with CE and twenty-four well-matched healthy controls (HCs) were enrolled to undergo a preoperative rs-fMRI scan. The rs-fMRI scan was performed again in twenty-four patients 1 month after surgery. The VMHC method was applied to evaluate the group differences of interhemispheric functional connectivity. The correlations between VMHC values and clinical variables were analyzed in the patient group.
    Results: Compared with HCs, 34 patients with CE showed significantly increased VMHC values in occipital lobe (cuneus/superior occipital gyrus/middle occipital gyrus/calcarine), cerebellar area 8/cerebellar Crus1 area, and cerebellar Crus1 area. In CE group, VMHC in the cuneus was positively correlated with stereoacuity (
    Conclusion: Our study revealed the interhemispheric homotopic connectivity changes of patients with CE in the occipital lobe and cerebellum before and after surgery. The findings may provide a new perspective for the neurological alterations of CE.
    Language English
    Publishing date 2023-07-27
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2425477-0
    ISSN 1662-5161
    ISSN 1662-5161
    DOI 10.3389/fnhum.2023.1095431
    Database MEDical Literature Analysis and Retrieval System OnLINE

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