LIVIVO - Search results -

Search results

Result 1 - 10 of total 397

Search options

Article ; Online: Multi-Label Feature Selection with Conditional Mutual Information.

Wang, Xiujuan / Zhou, Yuchen

Computational intelligence and neuroscience

2022 Volume 2022, Page(s) 9243893

Abstract: Feature selection is an important way to optimize the efficiency and accuracy of classifiers. However, traditional feature selection methods cannot work with many kinds of data in the real world, such as multi-label data. To overcome this challenge, ... ...

Abstract	Feature selection is an important way to optimize the efficiency and accuracy of classifiers. However, traditional feature selection methods cannot work with many kinds of data in the real world, such as multi-label data. To overcome this challenge, multi-label feature selection is developed. Multi-label feature selection plays an irreplaceable role in pattern recognition and data mining. This process can improve the efficiency and accuracy of multi-label classification. However, traditional multi-label feature selection based on mutual information does not fully consider the effect of redundancy among labels. The deficiency may lead to repeated computing of mutual information and leave room to enhance the accuracy of multi-label feature selection. To deal with this challenge, this paper proposed a multi-label feature selection based on conditional mutual information among labels (CRMIL). Firstly, we analyze how to reduce the redundancy among features based on existing papers. Secondly, we propose a new approach to diminish the redundancy among labels. This method takes label sets as conditions to calculate the relevance between features and labels. This approach can weaken the impact of the redundancy among labels on feature selection results. Finally, we analyze this algorithm and balance the effects of relevance and redundancy on the evaluation function. For testing CRMIL, we compare it with the other eight multi-label feature selection algorithms on ten datasets and use four evaluation criteria to examine the results. Experimental results illustrate that CRMIL performs better than other existing algorithms.
MeSH term(s)	Algorithms ; Data Mining
Language	English
Publishing date	2022-10-08
Publishing country	United States
Document type	Journal Article
ZDB-ID	2388208-6
ISSN	1687-5273 ; 1687-5273
ISSN (online)	1687-5273
ISSN	1687-5273
DOI	10.1155/2022/9243893
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Details ▾
- Full text online
- Order with fees

Article ; Online: Transcribed enhancer sequences are required for maize p1 paramutation.

Sidorenko, Lyudmila V / Chandler, Vicki L / Wang, Xiujuan / Peterson, Thomas

Genetics

2024 Volume 226, Issue 1

Abstract: Paramutation is a transfer of heritable silencing states between interacting endogenous alleles or between endogenous alleles and homologous transgenes. Prior results demonstrated that paramutation occurs at the P1-rr (red pericarp and red cob) allele of ...

Abstract	Paramutation is a transfer of heritable silencing states between interacting endogenous alleles or between endogenous alleles and homologous transgenes. Prior results demonstrated that paramutation occurs at the P1-rr (red pericarp and red cob) allele of the maize p1 (pericarp color 1) gene when exposed to a transgene containing a 1.2-kb enhancer fragment (P1.2) of P1-rr. The paramutable P1-rr allele undergoes transcriptional silencing resulting in a paramutant light-pigmented P1-rr' state. To define more precisely the sequences required to elicit paramutation, the P1.2 fragment was further subdivided, and the fragments transformed into maize plants and crossed with P1-rr. Analysis of the progeny plants showed that the sequences required for paramutation are located within a ∼600-bp segment of P1.2 and that this segment overlaps with a previously identified enhancer that is present in 4 direct repeats in P1-rr. The paramutagenic segment is transcribed in both the expressed P1-rr and the silenced P1-rr'. Transcription is sensitive to α-amanitin, indicating that RNA polymerase II mediates most of the transcription of this sequence. Although transcription within the paramutagenic sequence was similar in all tested genotypes, small RNAs were more abundant in the silenced P1-rr' epiallele relative to the expressed P1-rr allele. In agreement with prior results indicating the association of RNA-mediated DNA methylation in p1 paramutation, DNA blot analyses detected increased cytosine methylation of the paramutant P1-rr' sequences homologous to the transgenic P1.2 subfragments. Together these results demonstrate that the P1-rr enhancer repeats mediate p1 paramutation.
MeSH term(s)	Zea mays/genetics ; Mutation ; DNA Methylation ; Plants/genetics ; RNA ; Enhancer Elements, Genetic ; Alleles ; Gene Expression Regulation, Plant
Chemical Substances	RNA (63231-63-0)
Language	English
Publishing date	2024-01-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	2167-2
ISSN	1943-2631 ; 0016-6731
ISSN (online)	1943-2631
ISSN	0016-6731
DOI	10.1093/genetics/iyad178
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.B 767: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Amino-functional magnetic covalent organic framework as an effective adsorbent for the determination of neonicotinoids in food samples.

Zhang, Xinyue / Yang, Minli / Zhang, Feng / Wang, Xiujuan / Zhang, Feifang

Mikrochimica acta

2024 Volume 191, Issue 4, Page(s) 220

Abstract: Recently, covalent organic frameworks have gained popularity in sample pretreatment. However, the application of covalent organic frameworks in the enrichment of hydrophilic compounds remains a challenge. Thus, a functionalized magnetic covalent organic ... ...

Abstract	Recently, covalent organic frameworks have gained popularity in sample pretreatment. However, the application of covalent organic frameworks in the enrichment of hydrophilic compounds remains a challenge. Thus, a functionalized magnetic covalent organic framework equipped with amino groups was constructed using a bottom-up functionalization strategy. Considering the advantages of this novel adsorbent such as high porosity, large adsorption capacity, and hydrophilic surface, a sensitive magnetic solid-phase extraction coupled with high-performance liquid chromatography-tandem mass spectrometry method was established for the effective determination of neonicotinoids. This method exhibited good linearities with correlation coefficients ranging from 0.9983 to 0.9995, low detection limits in the range 0.003-0.009 ng g
MeSH term(s)	Metal-Organic Frameworks/chemistry ; Neonicotinoids ; Magnetics ; Chromatography, High Pressure Liquid ; Magnetic Phenomena
Chemical Substances	Metal-Organic Frameworks ; Neonicotinoids
Language	English
Publishing date	2024-03-26
Publishing country	Austria
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	89-9
ISSN	1436-5073 ; 0026-3672
ISSN (online)	1436-5073
ISSN	0026-3672
DOI	10.1007/s00604-024-06277-5
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Bonn / Germany

Z 56/171: Show issues
Z 8.1: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Bio-inspired non-conjugated poly(carbonylpyridinium) as anode material for high-performance alkali-ion (Li

Wang, Xiujuan / Chen, Ling / He, Xiaoming

Journal of colloid and interface science

2023 Volume 643, Page(s) 541–550

Abstract: The integration of multiple electron-accepting skeletons into polymeric structures is the forefront of materials research for high-energy sustainable energy storage. Herein, we report the synthesis of two novel non-conjugated polymers (NCP1 and NCP2) and ...

Abstract	The integration of multiple electron-accepting skeletons into polymeric structures is the forefront of materials research for high-energy sustainable energy storage. Herein, we report the synthesis of two novel non-conjugated polymers (NCP1 and NCP2) and a model small molecule (M1) incorporated with bio-derived 4-elecron-uptaking carbonylpyridinium redox-units for alkali-ion batteries. Compared to model small molecules, the polymers exhibited improved battery performance when applied as anode materials for Li-, Na-, and K-ion batteries (LIBs/SIBs/KIBs) owing to their high electrochemical activity and effective ability to suppress dissolution. By judicious selection of the benzothiadiazole redox-active linker, the performance of NCP2 was further enhanced, delivering the highest capacity and the best cycling stability; at mass loadings of up to 3.5 and 4.7 mg cm
Language	English
Publishing date	2023-03-21
Publishing country	United States
Document type	Journal Article
ZDB-ID	241597-5
ISSN	1095-7103 ; 0021-9797
ISSN (online)	1095-7103
ISSN	0021-9797
DOI	10.1016/j.jcis.2023.03.106
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Bonn / Germany

Z 71/707: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article: Anthraquinone porous polymers with different linking patterns for high performance Zinc-Organic battery

Wang, Xiujuan / Wang, Gang / He, Xiaoming

Journal of colloid and interface science. 2023 Jan., v. 629

2023

Abstract: Anthraquinone have desirable redox property, high specific capacity, and structural diversity, making them standing out as candidate cathode materials. However, they are still restricted in long cycling life for aqueous Zn-ion batteries (ZIBs) due to the ...

Abstract	Anthraquinone have desirable redox property, high specific capacity, and structural diversity, making them standing out as candidate cathode materials. However, they are still restricted in long cycling life for aqueous Zn-ion batteries (ZIBs) due to the structural instability and dissolution during the repeated H⁺/Zn²⁺ co-intercalation commonly leads to a fast capacity fading. Herein, two completely new isomeric porous polymers PTA-O26 and PTA-O14 with triazine have been designed and synthesized. The impact of the location of anthraquinone units on the redox potentials, Zn²⁺/H⁺ co-insertion behavior, and battery performance of polymer electrodes has been systematically studied. Experimental and DFT calculations studies clearly reveal the outstanding structural symmetry and highly reversible redox reaction for PTA-O26 cathode, which can effectively tackle the bottleneck problems for ZIBs on aspects of structural stability and Zn²⁺/H⁺ co-insertion dynamics. Naturally, PTA-O26 displays a specific capacity of 296 mAh g⁻¹ after 250 cycles with a high-capacity retention of 92.2 %.Moreover, the flexible soft-packaged battery by using PTA-O26 as cathode coupled with Zn foil as counter electrode manifests good stability under different bending conditions. The study provides a new insight about how to tune the structures for high performance batteries.
Keywords	anthraquinones ; batteries ; cathodes ; foil ; polymers ; redox reactions ; triazines
Language	English
Dates of publication	2023-01
Size	p. 434-444.
Publishing place	Elsevier Inc.
Document type	Article
ZDB-ID	241597-5
ISSN	1095-7103 ; 0021-9797
ISSN (online)	1095-7103
ISSN	0021-9797
DOI	10.1016/j.jcis.2022.08.166
Database	NAL-Catalogue (AGRICOLA)

In stock of ZB MED Bonn / Germany

Z 71/707: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article: Case report: Primary pericardial angiosarcoma, a rare cause of cardiac tamponade.

Kong, Ling-Yun / Cui, Xiao-Zheng / Xiang, Wei / Wang, Xiu-Juan / Liu, Fang

Frontiers in cardiovascular medicine

2024 Volume 11, Page(s) 1344975

Abstract: Primary pericardial angiosarcoma is a rare malignancy of the pericardium with variable clinical features and imaging characteristics. Herein, we report a case of histopathologically confirmed pericardial angiosarcoma in a 66-year-old man. The patient ... ...

Abstract	Primary pericardial angiosarcoma is a rare malignancy of the pericardium with variable clinical features and imaging characteristics. Herein, we report a case of histopathologically confirmed pericardial angiosarcoma in a 66-year-old man. The patient developed cardiac tamponade in a short time period. The transthoracic echocardiography showed the presence of multiple irregular echodensities, heterogeneous in echogenicity, encasing the apex of both ventricles in the pericardial space, initially misinterpreted as pericardial effusion. The patient died of cardiogenic shock despite undergoing a surgical pericardiectomy. Pericardial angiosarcoma can manifest as a mass obliterating the pericardial sac, rather than the typical pericardial effusion observed on echocardiography. Multimodality imaging studies aid in diagnosing primary pericardial angiosarcoma, but the final diagnosis relies on tissue histopathology.
Language	English
Publishing date	2024-02-13
Publishing country	Switzerland
Document type	Case Reports
ZDB-ID	2781496-8
ISSN	2297-055X
ISSN	2297-055X
DOI	10.3389/fcvm.2024.1344975
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Synthesis of 4-electron-accepting carbonyl-N-methylpyridinium species for lithium-organic batteries.

Lin, Qiting / Chen, Ling / Wang, Xiujuan / He, Xiaoming

STAR protocols

2022 Volume 3, Issue 4, Page(s) 101851

Abstract: Biologically derived redox-active motifs have great potential in energy storage due to their inherent functionality and availability from natural resources. In this protocol, we describe the synthesis and characterization of a class of bio-derived 4- ... ...

Abstract	Biologically derived redox-active motifs have great potential in energy storage due to their inherent functionality and availability from natural resources. In this protocol, we describe the synthesis and characterization of a class of bio-derived 4-electron-accepting carbonyl-N-methylpyridinium species for lithium-organic batteries. This protocol enables the synthesis of three small molecules and two conjugated polymers with carbonyl-N-methylpyridinium units in good quantities. We also detail the fabrication process and performance evaluation of the coin-cell-type lithium-organic batteries. For complete details on the use and execution of this protocol, please refer to Wang et al. (2022).
MeSH term(s)	Lithium ; Electrons
Chemical Substances	1-methylpyridinium (694-56-4) ; Lithium (9FN79X2M3F)
Language	English
Publishing date	2022-11-15
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	2666-1667
ISSN (online)	2666-1667
DOI	10.1016/j.xpro.2022.101851
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Anthraquinone porous polymers with different linking patterns for high performance Zinc-Organic battery.

Wang, Xiujuan / Wang, Gang / He, Xiaoming

Journal of colloid and interface science

2022 Volume 629, Issue Pt A, Page(s) 434–444

Abstract	Anthraquinone have desirable redox property, high specific capacity, and structural diversity, making them standing out as candidate cathode materials. However, they are still restricted in long cycling life for aqueous Zn-ion batteries (ZIBs) due to the structural instability and dissolution during the repeated H
Language	English
Publishing date	2022-08-31
Publishing country	United States
Document type	Journal Article
ZDB-ID	241597-5
ISSN	1095-7103 ; 0021-9797
ISSN (online)	1095-7103
ISSN	0021-9797
DOI	10.1016/j.jcis.2022.08.166
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Bonn / Germany

Z 71/707: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Adipose Tissue Aging and Metabolic Disorder, and the Impact of Nutritional Interventions.

Wang, Xiujuan / Xu, Meihong / Li, Yong

Nutrients

2022 Volume 14, Issue 15

Abstract: Adipose tissue is the largest and most active endocrine organ, involved in regulating energy balance, glucose and lipid homeostasis and immune function. Adipose tissue aging processes are associated with brown adipose tissue whitening, white adipose ... ...

Abstract	Adipose tissue is the largest and most active endocrine organ, involved in regulating energy balance, glucose and lipid homeostasis and immune function. Adipose tissue aging processes are associated with brown adipose tissue whitening, white adipose tissue redistribution and ectopic deposition, resulting in an increase in age-related inflammatory factors, which then trigger a variety of metabolic syndromes, including diabetes and hyperlipidemia. Metabolic syndrome, in turn, is associated with increased inflammatory factors, all-cause mortality and cognitive impairment. There is a growing interest in the role of nutritional interventions in adipose tissue aging. Nowadays, research has confirmed that nutritional interventions, involving caloric restriction and the use of vitamins, resveratrol and other active substances, are effective in managing adipose tissue aging's adverse effects, such as obesity. In this review we summarized age-related physiological characteristics of adipose tissue, and focused on what nutritional interventions can do in improving the retrogradation and how they do this.
MeSH term(s)	Adipose Tissue/metabolism ; Adipose Tissue, Brown/metabolism ; Adipose Tissue, White/metabolism ; Aging/metabolism ; Caloric Restriction ; Humans ; Metabolic Diseases/metabolism ; Metabolic Syndrome/metabolism
Language	English
Publishing date	2022-07-29
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2518386-2
ISSN	2072-6643 ; 2072-6643
ISSN (online)	2072-6643
ISSN	2072-6643
DOI	10.3390/nu14153134
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: Adipose Tissue Aging and Metabolic Disorder, and the Impact of Nutritional Interventions

Wang, Xiujuan / Xu, Meihong / Li, Yong

Nutrients. 2022 July 29, v. 14, no. 15

2022

Abstract	Adipose tissue is the largest and most active endocrine organ, involved in regulating energy balance, glucose and lipid homeostasis and immune function. Adipose tissue aging processes are associated with brown adipose tissue whitening, white adipose tissue redistribution and ectopic deposition, resulting in an increase in age-related inflammatory factors, which then trigger a variety of metabolic syndromes, including diabetes and hyperlipidemia. Metabolic syndrome, in turn, is associated with increased inflammatory factors, all-cause mortality and cognitive impairment. There is a growing interest in the role of nutritional interventions in adipose tissue aging. Nowadays, research has confirmed that nutritional interventions, involving caloric restriction and the use of vitamins, resveratrol and other active substances, are effective in managing adipose tissue aging’s adverse effects, such as obesity. In this review we summarized age-related physiological characteristics of adipose tissue, and focused on what nutritional interventions can do in improving the retrogradation and how they do this.
Keywords	brown adipose tissue ; cognitive disorders ; diabetes ; energy balance ; glucose ; homeostasis ; hyperlipidemia ; immune response ; lipids ; low calorie diet ; metabolic syndrome ; mortality ; obesity ; resveratrol ; retrogradation ; white adipose tissue
Language	English
Dates of publication	2022-0729
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2518386-2
ISSN	2072-6643
ISSN	2072-6643
DOI	10.3390/nu14153134
Database	NAL-Catalogue (AGRICOLA)

Order via subito

To top

Full text online

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito