Search results for: Kun Qin

Items from 1 to 20 out of 108 results

article

Aberrant brain network topology in youth with a familial risk for bipolar disorder: a task‐based fMRI connectome study

Nanfang Pan, Kun Qin, Luis R. Patino, Maxwell J. Tallman, more

Journal of Child Psychology and Psychiatry > 65 > 8 > 1072 - 1086

Background Youth with a family history of bipolar disorder (BD) may be at increased risk for mood disorders and for developing side effects after antidepressant exposure. The neurobiological basis of these risks remains poorly understood. We aimed to identify biomarkers underlying risk by characterizing abnormalities in the brain connectome of symptomatic youth at familial risk for BD. Methods...

article

Best practices for managing malodorous and infected wounds in advanced cervical cancer

Habibah Abdul Hamid, Xiaoqian Lin, Yuan Kun Qin, Abdah Md Akim, more

International Wound Journal > 21 > 2 > n/a - n/a

This cross‐sectional study was conducted to examine the most effective strategies for managing malodorous and infected wounds in patients who have been diagnosed with advanced cervical cancer. The research was conducted in Liupanshui, China. The study specifically examined demographic profiles, wound characteristics and effectiveness of wound management approaches. The study incorporated the heterogeneous...

article

A theory study based on DFT/TD‐DFT for a series of Ir(III) complexes with the low‐efficiency roll‐off and the high‐inter‐system crossover rate properties

Ming‐Xing Song, Xi‐Lian Guo, Ye Ji, Jia‐Yu Yang, more

International Journal of Quantum Chemistry > 124 > 1 > n/a - n/a

This study employs density functional theory (DFT) and time‐dependent density functional theory (TD‐DFT) to investigate a series of cyclometallated Ir(III) complexes for their application as OLED light‐emitting materials, including (dtp)₂Ir(dpm), (mmpyp)₂Ir(dpm), (dtp)₂Ir(tpip), (mmpyp)₂Ir(tpip), (dtp)₂Ir(pic), and (mmpyp)₂Ir(pic). Their geometries, frontier molecular orbital properties, ionization...

article

Theoretical study on luminescence properties of a series of iridium complexes with high spin orbit coupling coefficients

Zheng‐Kun Qin, Jia‐Yu Yang, Xi‐Lian Guo, Ye Ji, more

Journal of Physical Organic Chemistry > 36 > 10 > n/a - n/a

In this paper, several Ir (III) complexes with transition metal as the central atom formed by the corresponding combination of two main ligands and three auxiliary ligands have been studied theoretically. The electronic structure, frontier molecular orbital, and spin orbit coupling data are used to analyze its application value in light emitting devices. The density functional theory is used to study...

article

A theoretical study on blue‐green phosphorescent iridium (III) complexes with low‐efficiency roll‐off properties

Hao‐Yuan Chi, Guo‐Qing Xi, Xiang Liu, Hai‐Han Zhang, more

Journal of Physical Organic Chemistry > 36 > 4 > n/a - n/a

Here, eight phosphorescent heteroleptic cyclometalated Ir (III) complexes were theoretically designed to identify some suitable organic light‐emitting diode materials. (F₂‐PYBPY)₂Ir (acac) (marked 1), (F₂‐PYBPY)₂Ir (tpip) (marked 2), (PYBPY)₂Ir (acac) (marked 3), (PYBPY)₂Ir (tpip) (marked 4), (F₂‐PYPY)₂Ir (acac) (marked 5), (F₂‐PYPY)₂Ir (tpip) (marked 6), (PYPY)₂Ir (acac) (marked 7), and (PYPY)₂Ir...

article

Epidemiological study of capillary malformation among 7299 infants under 1 year of age in China

Lei Yu, Kun Qin, Xianming Deng, Xiaojian Yao, more

Journal of the European Academy of Dermatology and Venereology > 37 > 3 > 627 - 632

Background Capillary malformation (CM) is the most common vascular malformation. Large scale studies on its incidence and risk factors are limited in China. Objective Our study aimed to investigate the incidence of CM in Chinese infants and to evaluate its potential risk factors. Methods A cross‐sectional study, including 7299 infants (aged < 1 year) were collected by a self‐administered questionnaire...

article

An Electric‐Field‐Reinforced Hydrophobic Cationic Sieve Lowers the Concentration Threshold of Water‐In‐Salt Electrolytes (Adv. Mater. 47/2022)

Anxing Zhou, Jinkai Zhang, Ming Chen, Jinming Yue, more

Advanced Materials > 34 > 47 > n/a - n/a

Aqueous Battery Chemistry In article number 2207040, Guang Feng, Liumin Suo, and co‐workers report that when a small number of hydrophobic cations are introduced to an appropriate concentration electrolyte (ACE), the added cations can form an electric‐field‐reinforced hydrophobic cationic sieve (HCS) that blocks water away from the anode. As a result, ALIBs with HCS‐ACE can achieve lower costs and...

article

An Electric‐Field‐Reinforced Hydrophobic Cationic Sieve Lowers the Concentration Threshold of Water‐In‐Salt Electrolytes

Anxing Zhou, Jinkai Zhang, Ming Chen, Jinming Yue, more

Advanced Materials > 34 > 47 > n/a - n/a

High‐concentration water‐in‐salt (WIS) electrolytes expand the stable electrochemical window of aqueous electrolytes, leading to the advent of high‐voltage (above 2 V) aqueous Li‐ion batteries (ALIBs). However, the high lithium salt concentration electrolytes of ALIBs result in their high cost and deteriorate kinetic performance. Therefore, it is challenging for ALIBs to explore aqueous electrolytes...

article

Influence of rotation speed on abrasive wear behavior of the UHMWPE in lubrication environment

Weihao Sun, Qin Zhou, Kai Zhang, Kun Qin, more

Journal of Applied Polymer Science > 139 > 45 > n/a - n/a

To better understand the damage failure mechanism of ultra‐high molecular weight polyethylene (UHMWPE) in engineering application environments, a study was conducted to explore the effect of rotation speed on its abrasive wear performance in lubricant media containing abrasive particles, especially in comparison to the water. The wear mechanism was analyzed by friction coefficient and wear behavior...

article

Theoretical study of the high intersystem spin crossing (ISC) ability of a series of iridium complexes with low efficiency roll‐off properties

Ming‐Xing Song, Hai‐Han Zhang, Xu‐Hui Liu, Ye Ji, more

Applied Organometallic Chemistry > 36 > 11 > n/a - n/a

A series of heteroleptic cyclometalated Ir(III) complexes for OLEDs application have been investigated theoretically to explore their electronic structures and spectroscopic properties. The geometries, electronic structures, lowest‐lying singlet absorptions, and triplet emissions of (pdbi)₂Ir(acac), (F‐pdbi)₂Ir(acac), (pdbi)₂Ir(dpis), (F‐pdbi)₂Ir(dpis), (pdbi)₂Ir(tpip), and (F‐pdbi)₂Ir(tpip) were...

article

A preliminary study of the effects of mindfulness‐based cognitive therapy on structural brain networks in mood‐dysregulated youth with a familial risk for bipolar disorder

Jing Yang, Du Lei, Xueling Suo, Maxwell J. Tallman, more

Early Intervention in Psychiatry > 16 > 9 > 1011 - 1019

Background Mindfulness‐based cognitive therapy for children (MBCT‐C), as a psychotherapeutic intervention, has been shown to be effective for treating mood dysregulation (MD). While previous neuroimaging studies of MD have reported both pre‐treatment structural and functional alterations, the effects of MBCT‐C on brain morphological network organisation has not been investigated. Methods We investigated...

article

A Better Choice to Achieve High Volumetric Energy Density: Anode‐Free Lithium‐Metal Batteries

Liangdong Lin, Kun Qin, Yong‐sheng Hu, Hong Li, more

Advanced Materials > 34 > 23 > n/a - n/a

Volumetric energy density is a critical but easily neglected index of lithium‐metal batteries (LMBs). Compared with gravimetric energy density, the volumetric energy density (VED) of LMBs is much more sensitive to the anode/cathode (A/C) ratio due to the low density of lithium (Li) metal and the volume expansion of the Li‐metal anode owing to its pulverization during cycles. Anode‐free LMBs (AF‐LMBs)...

article

Psychoradiological abnormalities in treatment‐naive noncomorbid patients with posttraumatic stress disorder

Xueling Suo, Du Lei, Wenbin Li, Huaiqiang Sun, more

Depression and Anxiety > 39 > 1 > 83 - 91

Background Neuroimaging studies in posttraumatic stress disorder (PTSD) have identified various alterations in white matter (WM) microstructural organization. However, it remains unclear whether these are localized to specific regions of fiber tracts, and what diagnostic value they might have. This study set out to explore the spatial profile of WM abnormalities along defined fiber tracts in PTSD...

article

Identification and analysis of urban influential regions using spatial interaction networks

Tao Jia, Xuesong Yu, Xin Li, Kun Qin

Transactions in GIS > 25 > 6 > 2821 - 2839

Understanding and controlling spreading processes in urban space is of theoretical and practical importance for developing policies in sustainable urban management. Conventional studies are mainly focused on identifying influential nodes in different networks, but little attention has been paid to identification of influential regions and analysis of their spatiotemporal characteristics in urban space...

article

Topologically convergent and divergent morphological gray matter networks in early‐stage Parkinson's disease with and without mild cognitive impairment

Xueling Suo, Du Lei, Nannan Li, Junying Li, more

Human Brain Mapping > 42 > 15 > 5101 - 5112

Patients with Parkinson's disease with mild cognitive impairment (PD‐M) progress to dementia more frequently than those with normal cognition (PD‐N), but the underlying neurobiology remains unclear. This study aimed to define the specific morphological brain network alterations in PD‐M, and explore their potential diagnostic value. Twenty‐four PD‐M patients, 17 PD‐N patients, and 29 healthy controls...

article

Regional gray matter volume associated with exercise dependence: A voxel‐based morphometry study

Feifei Zhang, Song Wang, Yang Feng, Kun Qin, more

Human Brain Mapping > 42 > 15 > 4857 - 4868

Although regular physical exercise has multiple positive benefits for the general population, excessive exercise may lead to exercise dependence (EXD), which is harmful to one's physical and mental health. Increasing evidence suggests that stress is a potential risk factor for the onset and development of EXD. However, little is known about the neural substrates of EXD and the underlying neuropsychological...

article

Brain gray matter structures associated with trait impulsivity: A systematic review and voxel‐based meta‐analysis

Nanfang Pan, Song Wang, Yajun Zhao, Han Lai, more

Human Brain Mapping > 42 > 7 > 2214 - 2235

Trait impulsivity is a multifaceted personality characteristic that contributes to maladaptive life outcomes. Although a growing body of neuroimaging studies have investigated the structural correlates of trait impulsivity, the findings remain highly inconsistent and heterogeneous. Herein, we performed a systematic review to depict an integrated delineation of gray matter (GM) substrates of trait...

article

Li‐Rich Li₂[Ni_0.8Co_0.1Mn_0.1]O₂ for Anode‐Free Lithium Metal Batteries

Liangdong Lin, Kun Qin, Qinghua Zhang, Lin Gu, more

Angewandte Chemie International Edition > 60 > 15 > 8289 - 8296

Anode‐free lithium metal batteries can maximize the energy density at the cell level. However, without the Li compensation from the anode side, it faces much more challenging to achieve a long cycling life with a competitive energy density than Li metal‐based batteries. Here, we prolong the lifespan of an anode‐free Li metal battery by introducing Li‐rich Li₂[Ni_0.8Co_0.1Mn_0.1]O₂ into the cathode as...

article

Li‐Rich Li₂[Ni_0.8Co_0.1Mn_0.1]O₂ for Anode‐Free Lithium Metal Batteries

Liangdong Lin, Kun Qin, Qinghua Zhang, Lin Gu, more

Angewandte Chemie > 133 > 15 > 8370 - 8377

article

A graph convolutional network model for evaluating potential congestion spots based on local urban built environments

Kun Qin, Yuanquan Xu, Chaogui Kang, Mei‐Po Kwan

Transactions in GIS > 24 > 5 > 1382 - 1401

Automatically identifying potential congestion spots in cities has significant practical implications for efficient urban development and management. It requires the ability to examine the relationships between urban built environment features and traffic congestion situations. This article presents a novel and effective approach for achieving the task based on a machine‐learning technique and publicly...

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INFONA - science communication portal

Search results for: Kun Qin

Aberrant brain network topology in youth with a familial risk for bipolar disorder: a task‐based fMRI connectome study

Best practices for managing malodorous and infected wounds in advanced cervical cancer

A theory study based on DFT/TD‐DFT for a series of Ir(III) complexes with the low‐efficiency roll‐off and the high‐inter‐system crossover rate properties

Theoretical study on luminescence properties of a series of iridium complexes with high spin orbit coupling coefficients

A theoretical study on blue‐green phosphorescent iridium (III) complexes with low‐efficiency roll‐off properties

Epidemiological study of capillary malformation among 7299 infants under 1 year of age in China

An Electric‐Field‐Reinforced Hydrophobic Cationic Sieve Lowers the Concentration Threshold of Water‐In‐Salt Electrolytes (Adv. Mater. 47/2022)

An Electric‐Field‐Reinforced Hydrophobic Cationic Sieve Lowers the Concentration Threshold of Water‐In‐Salt Electrolytes

Influence of rotation speed on abrasive wear behavior of the UHMWPE in lubrication environment

Theoretical study of the high intersystem spin crossing (ISC) ability of a series of iridium complexes with low efficiency roll‐off properties

A preliminary study of the effects of mindfulness‐based cognitive therapy on structural brain networks in mood‐dysregulated youth with a familial risk for bipolar disorder

A Better Choice to Achieve High Volumetric Energy Density: Anode‐Free Lithium‐Metal Batteries

Psychoradiological abnormalities in treatment‐naive noncomorbid patients with posttraumatic stress disorder

Identification and analysis of urban influential regions using spatial interaction networks

Topologically convergent and divergent morphological gray matter networks in early‐stage Parkinson's disease with and without mild cognitive impairment

Regional gray matter volume associated with exercise dependence: A voxel‐based morphometry study

Brain gray matter structures associated with trait impulsivity: A systematic review and voxel‐based meta‐analysis

Li‐Rich Li₂[Ni_0.8Co_0.1Mn_0.1]O₂ for Anode‐Free Lithium Metal Batteries

Li‐Rich Li₂[Ni_0.8Co_0.1Mn_0.1]O₂ for Anode‐Free Lithium Metal Batteries

A graph convolutional network model for evaluating potential congestion spots based on local urban built environments

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