Search results for: Ning Ding

Items from 1 to 20 out of 389 results

article

Multivariate Synthetic Strategy for Improving Crystallinity of Zwitterionic Squaraine‐Linked Covalent Organic Frameworks with Enhanced Photothermal Performance

Ning Ding, Ting Zhou, Weijun Weng, Zheng Lin, more

Small > 18 > 24 > n/a - n/a

Two‐dimensional covalent organic frameworks (2D COFs) offer a designable platform to explore porous polyelectrolyte frameworks with periodic ionic skeletons and uniform pore channels. However, the crystallinity of ionized 2D COF is often far from satisfactory as the electrostatic assembly of structures impedes the ordered layered arrangement. Here, a multivariate synthetic strategy to synthesize a...

article

More than a Leaving Group: N‐Phenyltrifluoroacetimidate as a Remote Directing Group for Highly α‐Selective 1,2‐cis Glycosylation

Xianglai Liu, Yingying Song, Ao Liu, Yueer Zhou, more

Angewandte Chemie International Edition > 61 > 21 > n/a - n/a

The anomeric configuration can greatly affect the biological functions and activities of carbohydrates. Herein, we report that N‐phenyltrifluoroacetimidoyl (PTFAI), a well‐known leaving group for catalytic glycosylation, can act as a stereodirecting group for the challenging 1,2‐cis α‐glycosylation. Utilizing rapidly accessible 1,6‐di‐OPTFAI glycosyl donors, TMSOTf‐catalyzed glycosylation occurred...

article

More than a Leaving Group: N‐Phenyltrifluoroacetimidate as a Remote Directing Group for Highly α‐Selective 1,2‐cis Glycosylation

Xianglai Liu, Yingying Song, Ao Liu, Yueer Zhou, more

Angewandte Chemie > 134 > 21 > n/a - n/a

article

Adiponectin deficiency promotes endometrial carcinoma pathogenesis and development via activation of mitogen‐activated protein kinase

Yunjing Yan, Hui Shi, Zhenggang Zhao, Shuai Wang, more

The Journal of Pathology > 257 > 2 > 146 - 157

Obesity is one of the major risk factors for cancer. Clinical studies have demonstrated that circulating levels of adiponectin are inversely correlated, not only with the extent of adiposity, but also with the incidence of several types of cancer, particularly endometrial cancer (EC). However, thus far, adiponectin remains a correlative factor, without definitive evidence to show a causal effect in...

article

Reliability, validity and developmental sensitivity of the Language Use Inventory (LUI) in the Chinese context

Lu Qian, Huan Shao, Hui Fang, Ting Xiao, more

International Journal of Language & Communication Disorders > 57 > 3 > 497 - 511

Background Pragmatics has generally been defined as the ability to use language in social situations, it is commonly regarded as the third major component of language ability. To date, there is no tool for assessing early pragmatic development of Chinese‐speaking children. Aims To describe the translation of the Language Use Inventory (LUI) from English to Mandarin Chinese and to report findings...

article

Life cycle greenhouse gas emissions of aluminum based on regional industrial transfer in China

Ning Ding, Ning Liu, Bin Lu, Jianxin Yang

Journal of Industrial Ecology > 25 > 6 > 1657 - 1672

Aluminum production is a major energy consumer and source of greenhouse gas (GHG) emissions. The regional transfer of the primary aluminum (PA) industry, which mainly consists of the processes of electrolysis and aluminum ingot casting, is currently an important international trend in aluminum industrial development. However, the changes in GHG emissions from aluminum production for such transfers...

article

Activation of TRPM8 channel inhibits contraction of the isolated human ureter

Jiaxin Liu, Lei Liu, Mengmeng Zhao, Ning Ding, more

Neurourology and Urodynamics > 40 > 6 > 1450 - 1459

Aims The transient receptor potential melastin‐8 (TRPM8) channel is a “cooling” receptor expressed in primary sensory neurons and can be activated by compounds like menthol or icilin. TRPM8 is involved in the regulation of urinary bladder sensory function and contraction, but the role of TRPM8 in the ureter, particularly in the human ureter, is poorly understood. The aim of this study is to examine...

article

A new risk‐adjusted EWMA control chart based on survival time for monitoring surgical outcome quality

Ning Ding, Zhen He, Liangxing Shi, Liang Qu

Quality and Reliability Engineering International > 37 > 4 > 1650 - 1663

Monitoring surgical outcome quality by risk‐adjusted control charts has attracted wide attention. The hidden medical errors may cause increasing of adverse events such as infection, rehospitalization, and even death. Quickly and timely detecting abnormal changes of surgical performance helps reduce the probability of adverse events and improve health care quality. Most existing monitoring schemes...

article

Serial theft case linkage based on a two‐step cumulative probability model

Ning Ding, Mingyuan Ma, Yiming Zhai

Journal of Investigative Psychology and Offender Profiling > 18 > 1 > 3 - 17

At present, serial theft case linkage remains at the stage of empiricism. In order to overcome this subjective arbitrariness, this study proposes using a ‘two‐step cumulative probability model’ for investigation. In the first step, based on expert grading method, the opinions of 99 policemen were combined to quantify the serial theft case characteristics. In the second step, when a new case occurred,...

article

Quinolactacin Biosynthesis Involves Non‐Ribosomal‐Peptide‐Synthetase‐Catalyzed Dieckmann Condensation to Form the Quinolone‐γ‐lactam Hybrid

Fanglong Zhao, Zhiwen Liu, Shuyuan Yang, Ning Ding, more

Angewandte Chemie International Edition > 59 > 43 > 19108 - 19114

Quinolactacins are novel fungal alkaloids that feature a quinolone‐γ‐lactam hybrid, which is a potential pharmacophore for the treatment of cancer and Alzheimer's disease. Herein, we report the identification of the quinolactacin A2 biosynthetic gene cluster and elucidate the enzymatic basis for the formation of the quinolone‐γ‐lactam structure. We reveal an unusual β‐keto acid (N‐methyl‐2‐aminobenzoylacetate)...

article

Quinolactacin Biosynthesis Involves Non‐Ribosomal‐Peptide‐Synthetase‐Catalyzed Dieckmann Condensation to Form the Quinolone‐γ‐lactam Hybrid

Fanglong Zhao, Zhiwen Liu, Shuyuan Yang, Ning Ding, more

Angewandte Chemie > 132 > 43 > 19270 - 19276

article

Elements of metacommunity structure of diatoms and macroinvertebrates within stream networks differing in environmental heterogeneity

Siwen He, Kai Chen, Janne Soininen, Jani Heino, more

Journal of Biogeography > 47 > 8 > 1755 - 1764

Aim Idealized metacommunity structures (i.e. checkerboard, random, quasi‐structures, nested, Clementsian, Gleasonian and evenly spaced) have recently gained increasing attention, but their relationships with environmental heterogeneity and how they vary with organism groups remain poorly understood. Here, we tested two main hypotheses: (a) gradient‐driven patterns (Clementsian and Gleasonian) occur...

article

Structure characterization within the vicinity of the fine granular area by synchrotron radiation nano‐CT

Long Liu, Nan Hou, Bochuan Li, Bo Ma, more

Fatigue & Fracture of Engineering Materials & Structures > 43 > 7 > 1597 - 1605

The three‐dimensional (3D) microstructures within the vicinity of the fine granular area (FGA) were investigated with synchrotron radiation nano‐computed tomography (CT). In this investigation, the very high cycle fatigue test of a high‐strength steel was carried out with an ultrasonic fatigue testing machine. Then, focused ion beam cutting was used to cut a part near the surface of the FGA. Finally,...

article

Non‐coenzyme role of vitamin B1 in RANKL‐induced osteoclastogenesis and ovariectomy induced osteoporosis

Qinyu Ma, Mengmeng Liang, Yaxi Wang, Ning Ding, more

Journal of Cellular Biochemistry > 121 > 7 > 3526 - 3536

Vitamins B are co‐enzymes participating in energy metabolic pathways. While some vitamins B are known affecting bone homeostasis, the effects of vitamin B1 (thiamine) on bone health remains unclear. In our study, we used cell counting kit‐8, tartrate‐resistant acid phosphatase stain, actin cytoskeleton stain, and pit formation assay to evaluate the effect of thiamine on osteoclast differentiation,...

article

Assessment of PCB-contaminated soil pretreatment remediation by hydroxypropyl-β-cyclodextrin (HP-β-CD)

Xun Liu, Ning Ding, Hong Liu, Houwang Chen

Archives of Environmental Protection > 2020 > Vol. 46, no. 1 > 53--61

The present study thoroughly evaluated the eff ect of hydroxypropyl-β-cyclodextrin (HP-β-CD) on eluting of Aroclor1242 (one kind of PCBs (polychlorinated biphenyls)) from contaminated soil. The factors that might aff ect eluting effi ciency including HP-β-CD concentration, contact time, eluting cycles, temperature, pH, salt content, humic acid, and ultrasonic were all tested to evaluate the PCBs eluting...

article

Association of sleep quality during pregnancy with stress and depression: a prospective birth cohort study in China

Ming Gao, Jiajin Hu, Liu Yang, Ning Ding, more

BMC Pregnancy and Childbirth > 2019 > 19 > 1 > 1-8

Background The sleep quality of pregnant women in the third trimester is related to mental health. However, there is still a lack of large-scale cohort research exploring this relationship in the second trimester. Thus, we assessed the associations of sleep quality during the second trimester with antenatal stress and antenatal and postnatal depression. Methods We examined 1152 pregnant women from...

article

Dimethyloxaloylglycine-stimulated human bone marrow mesenchymal stem cell-derived exosomes enhance bone regeneration through angiogenesis by targeting the AKT/mTOR pathway

Bo Liang, Jia-Ming Liang, Jia-Ning Ding, Jia Xu, more

Stem Cell Research & Therapy > 2019 > 10 > 1 > 1-11

Background Mesenchymal stem cell (MSC)-derived exosomes have been recognized as new candidate agents for treating critical-sized bone defects; they promote angiogenesis and may be an alternative to cell therapy. In this study, we evaluated whether exosomes derived from bone marrow-derived MSCs (BMSCs) preconditioned with a low dose of dimethyloxaloylglycine (DMOG), DMOG-MSC-Exos, exert superior proangiogenic...

article

In vivo monitoring of thrombosis in mice by optical coherence tomography

Yao Yu, Menghan Yu, Jian Liu, Ning Ding, more

Journal of Biophotonics > 12 > 11 > n/a - n/a

The objective of this study is to establish a novel method for continuously monitoring thrombus progression with various outcome measures and to assess the efficacy of antithrombotic drugs in murine thrombosis model in mice. In the study, thrombus was induced in the femoral vein of mice by FeCl₃ and monitored over time by spectral‐domain optical coherence tomography (OCT). Three‐dimensional images...

article

Whole‐brain microcirculation detection after ischemic stroke based on swept‐source optical coherence tomography

Jian Liu, Ning Ding, Yao Yu, Lanxiang Liu, more

Journal of Biophotonics > 12 > 10 > n/a - n/a

The occurrence and development of ischemic stroke are closely related to cerebral blood flow. Real‐time monitoring of cerebral perfusion level is very useful for understanding the mechanisms of the disease. A wide field of view (FOV) is conducive to capturing lesions and observing the progression of the disease. In this paper, we attempt to monitor the whole‐brain microcirculation in middle cerebral...

article

A 7.4 kHz, 20-bit image encoder with a CMOS linear image sensor

Yusong Mu, Jiaqi Jiang, Ning Ding, Qiliang Ni, more

Optical and Quantum Electronics > 2019 > 51 > 10 > 1-13

This paper presents a unique CMOS linear image sensor for reading the pseudo-random code on the slit disc, focusing on the two aspects of low noise and readout rate. Each pixel is equipped with an exclusive integral readout circuit, and the shape of the pixel also matches the slit disc, making the output signal consistent by up to 99%. After subdivision, the absolute angle data can be captured with...

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INFONA - science communication portal

Search results for: Ning Ding

Multivariate Synthetic Strategy for Improving Crystallinity of Zwitterionic Squaraine‐Linked Covalent Organic Frameworks with Enhanced Photothermal Performance

More than a Leaving Group: N‐Phenyltrifluoroacetimidate as a Remote Directing Group for Highly α‐Selective 1,2‐cis Glycosylation

More than a Leaving Group: N‐Phenyltrifluoroacetimidate as a Remote Directing Group for Highly α‐Selective 1,2‐cis Glycosylation

Adiponectin deficiency promotes endometrial carcinoma pathogenesis and development via activation of mitogen‐activated protein kinase

Reliability, validity and developmental sensitivity of the Language Use Inventory (LUI) in the Chinese context

Life cycle greenhouse gas emissions of aluminum based on regional industrial transfer in China

Activation of TRPM8 channel inhibits contraction of the isolated human ureter

A new risk‐adjusted EWMA control chart based on survival time for monitoring surgical outcome quality

Serial theft case linkage based on a two‐step cumulative probability model

Quinolactacin Biosynthesis Involves Non‐Ribosomal‐Peptide‐Synthetase‐Catalyzed Dieckmann Condensation to Form the Quinolone‐γ‐lactam Hybrid

Quinolactacin Biosynthesis Involves Non‐Ribosomal‐Peptide‐Synthetase‐Catalyzed Dieckmann Condensation to Form the Quinolone‐γ‐lactam Hybrid

Elements of metacommunity structure of diatoms and macroinvertebrates within stream networks differing in environmental heterogeneity

Structure characterization within the vicinity of the fine granular area by synchrotron radiation nano‐CT

Non‐coenzyme role of vitamin B1 in RANKL‐induced osteoclastogenesis and ovariectomy induced osteoporosis

Assessment of PCB-contaminated soil pretreatment remediation by hydroxypropyl-β-cyclodextrin (HP-β-CD)

Association of sleep quality during pregnancy with stress and depression: a prospective birth cohort study in China

Dimethyloxaloylglycine-stimulated human bone marrow mesenchymal stem cell-derived exosomes enhance bone regeneration through angiogenesis by targeting the AKT/mTOR pathway

In vivo monitoring of thrombosis in mice by optical coherence tomography

Whole‐brain microcirculation detection after ischemic stroke based on swept‐source optical coherence tomography

A 7.4 kHz, 20-bit image encoder with a CMOS linear image sensor

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