LIVIVO - Search results -

Search results

Result 1 - 10 of total 311

Search options

Article ; Online: Comparison of cement-augmented pedicle screw and conventional pedicle screw for the treatment of lumbar degenerative patients with osteoporosis.

Wang, Yazhou / Zhou, Chenghao / Yin, Huabin / Song, Dianwen

European journal of orthopaedic surgery & traumatology : orthopedie traumatologie

2024 Volume 34, Issue 3, Page(s) 1609–1617

Abstract: Study design: A retrospective cohort study.: Objective: To compare the safety and clinical efficacy between using cement-augmented pedicle screws (CAPS) and conventional pedicle screws (CPS) for the treatment of lumbar degenerative patients with ... ...

Abstract	Study design: A retrospective cohort study. Objective: To compare the safety and clinical efficacy between using cement-augmented pedicle screws (CAPS) and conventional pedicle screws (CPS) for the treatment of lumbar degenerative patients with osteoporosis. Management of lumbar degenerative patients with osteoporosis undergoing spine surgery is challenging. The clinical efficacy and potential complications of the mid-term performance of the CAPS technique in the treatment of lumbar degenerative patients with osteoporosis remain to be evaluated. Patients and methods: The data of 131 lumbar degenerative patients with osteoporosis who were treated with screw fixation from May 2016 to December 2019 were retrospectively analyzed in this study. The patients were divided into the following two groups according to the type of screw used: (I) the CAPS group (n = 85); and (II) the CPS group (n = 46). Relevant data were compared between two groups, including the demographics data, clinical results and complications. Results: The difference in the VAS, ODI and JOA scores at three and 6 months after the operation between the two groups was statistically significant (P < 0.05). At 12 months after surgery and the final follow-up, a significant difference in the fusion rate was found between the two groups (P < 0.05). Four cemented screws loosening were observed in the CAPS group (loosening rate 4/384, 1.04%) and 15 screws loosening were observed in the CPS group (loosening rate 15/214, 7.01%). In the CAPS group, a total of 384 augmented screws were used, and cement leakage was observed in 25 screws (25/384, 6.51%), but no obvious clinical symptoms or serious complications were observed. Adjacent vertebral fractures occurred in six patients in the CAPS group and one in the CPS group. Conclusions: CAPS technique is an effective strategy for the treatment of lumbar degenerative patients with osteoporosis, with a higher fusion rate and lower screw loosening rate than CPS.
MeSH term(s)	Humans ; Pedicle Screws ; Retrospective Studies ; Osteoporosis/complications ; Bone Cements/therapeutic use ; Treatment Outcome ; Lumbar Vertebrae/surgery ; Spinal Fusion/adverse effects ; Spinal Fusion/methods
Chemical Substances	Bone Cements
Language	English
Publishing date	2024-02-16
Publishing country	France
Document type	Journal Article
ZDB-ID	1231084-0
ISSN	1432-1068 ; 1633-8065 ; 0948-4817 ; 0940-3264
ISSN (online)	1432-1068
ISSN	1633-8065 ; 0948-4817 ; 0940-3264
DOI	10.1007/s00590-024-03849-2
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

In stock of ZB MED Cologne/Königswinter

Zs.A 3479: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

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 ▾

Article ; Online: Tough, Injectable Calcium Phosphate Cement Based Composite Hydrogels to Promote Osteogenesis.

Wang, Yazhou / Peng, Zhiwei / Zhang, Dong / Song, Dianwen

Gels (Basel, Switzerland)

2023 Volume 9, Issue 4

Abstract: Osteoporosis is one of the most disabling consequences of aging, and osteoporotic fractures and a higher risk of subsequent fractures lead to substantial disability and deaths, indicating that both local fracture healing and early anti-osteoporosis ... ...

Abstract	Osteoporosis is one of the most disabling consequences of aging, and osteoporotic fractures and a higher risk of subsequent fractures lead to substantial disability and deaths, indicating that both local fracture healing and early anti-osteoporosis therapy are of great significance. However, combining simple clinically approved materials to achieve good injection and subsequent molding and provide good mechanical support remains a challenge. To meet this challenge, bioinspired by natural bone components, we develop appropriate interactions between inorganic biological scaffolds and organic osteogenic molecules, achieving a tough hydrogel that is both firmly loaded with calcium phosphate cement (CPC) and injectable. Here, the inorganic component CPC composed of biomimetic bone composition and the organic precursor, incorporating gelatin methacryloyl (GelMA) and N-Hydroxyethyl acrylamide (HEAA), endow the system with fast polymerization and crosslinking through ultraviolet (UV) photo-initiation. The GelMA-poly (N-Hydroxyethyl acrylamide) (GelMA-PHEAA) chemical and physical network formed in situ enhances the mechanical performances and maintains the bioactive characteristics of CPC. This tough biomimetic hydrogel combined with bioactive CPC is a new promising candidate for a commercial clinical material to help patients to survive osteoporotic fracture.
Language	English
Publishing date	2023-04-03
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2813982-3
ISSN	2310-2861 ; 2310-2861
ISSN (online)	2310-2861
ISSN	2310-2861
DOI	10.3390/gels9040302
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Quasi-dynamic study of electrochemical properties of O3-high-Ni ternary single-crystal cathode materials with mirror symmetry: a first-principles study.

Zhou, Naigen / Wang, Yazhou / Cui, Hong

Nanoscale

2023 Volume 15, Issue 45, Page(s) 18383–18394

Abstract: A total of 16 O3-type high-Ni ternary crystal structures with mirror symmetry were constructed based on the relative locations of Ni, Co, and Mn in order to design high operating voltage and high-capacity cathode materials for lithium-ion batteries. ... ...

Abstract	A total of 16 O3-type high-Ni ternary crystal structures with mirror symmetry were constructed based on the relative locations of Ni, Co, and Mn in order to design high operating voltage and high-capacity cathode materials for lithium-ion batteries. Transition states, powder X-ray diffraction (XRD) patterns, intercalation potentials, and (spin) electronic structures are computed and simulated based on first-principles calculations. The results show that the Li ion diffusion energy barrier, in the structure of the lowest energy counterpart a'aa', is only 0.9 eV. When charged to 75% state of charge (SOC), the Li layer spacing reaches a maximum under electrostatic attraction and Coulomb repulsion forces. The operating voltage and theoretical capacity are up to 4.79 V and 275 mA h g
Language	English
Publishing date	2023-11-23
Publishing country	England
Document type	Journal Article
ZDB-ID	2515664-0
ISSN	2040-3372 ; 2040-3364
ISSN (online)	2040-3372
ISSN	2040-3364
DOI	10.1039/d3nr04586b
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: The Activation of GABA

Lan, Jing / Wang, Jiaqi / Wang, Shujing / Wang, Jia / Huang, Sijuan / Wang, Yazhou / Ma, Yunfei

Antioxidants (Basel, Switzerland)

2024 Volume 13, Issue 2

Abstract: Ischemic stroke is a devastating disease leading to neurologic impairment. Compounding the issue is the very limited array of available interventions. The activation of a γ-aminobutyric acid (GABA) type A receptor ( ... ...

Abstract	Ischemic stroke is a devastating disease leading to neurologic impairment. Compounding the issue is the very limited array of available interventions. The activation of a γ-aminobutyric acid (GABA) type A receptor (GABA
Language	English
Publishing date	2024-02-03
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2704216-9
ISSN	2076-3921
ISSN	2076-3921
DOI	10.3390/antiox13020194
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: The Pharmacological Efficacy of Baicalin in Inflammatory Diseases.

Wen, Yongqiang / Wang, Yazhou / Zhao, Chenxu / Zhao, Baoyu / Wang, Jianguo

International journal of molecular sciences

2023 Volume 24, Issue 11

Abstract: Baicalin is one of the most abundant flavonoids found in the dried roots ... ...

Abstract	Baicalin is one of the most abundant flavonoids found in the dried roots of
MeSH term(s)	Flavonoids/therapeutic use ; Flavonoids/pharmacokinetics ; Anti-Bacterial Agents/therapeutic use ; Antiviral Agents ; Antioxidants ; Scutellaria baicalensis/chemistry
Chemical Substances	baicalin (347Q89U4M5) ; Flavonoids ; Anti-Bacterial Agents ; Antiviral Agents ; Antioxidants
Language	English
Publishing date	2023-05-26
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2019364-6
ISSN	1422-0067 ; 1422-0067 ; 1661-6596
ISSN (online)	1422-0067
ISSN	1422-0067 ; 1661-6596
DOI	10.3390/ijms24119317
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Dynamic characteristics and optimizations of the proposed combined cold and power system with integrated advanced adiabatic compressed air energy storage and double-effect compression-absorption refrigeration

Bai, Jianshu / Chen, Wei / Xie, Ningning / Ma, Linrui / Wang, Yazhou / Zhang, Tong / Xue, Xiaodai

Energy. 2023 July 19, p.128474-

2023 , Page(s) 128474–

Abstract: A combined cold and power system with an integrated advanced adiabatic compressed air energy storage system and double-effect compression-absorption refrigeration using [mmim]DMP/CH₃OH as working fluid (CACAR) was proposed. The CACAR system can use the ... ...

Abstract	A combined cold and power system with an integrated advanced adiabatic compressed air energy storage system and double-effect compression-absorption refrigeration using [mmim]DMP/CH₃OH as working fluid (CACAR) was proposed. The CACAR system can use the heat generated by the compression process and the cooling capacity generated by the expansion of compressed air. The dynamic mathematical model of the CACAR system was built based on the mass conservation, energy conservation, and entropy equation of each component. The verification of the compressor, expander, air tank, and Compression absorption refrigeration (CAR) were partly implemented to validate the proposed model. The energy balance of the proposed system was confirmed. The exergy losses of each component were calculated and analyzed. The proposed model have been verified to obey the first and second laws of thermodynamics. The transient characteristics of the expansion process were simulated and discussed. Based on the sensitivity analysis results, the four key operating parameters were optimized using the multi-objective and multiparameter methods. The optimum parameter combination of γ and T₃₇ of the refrigeration system is found to be (1.503, 342.21 Κ). The energy efficiency of the CACAR system was at least 14.97% higher than that of the AA-CAES system.
Keywords	absorption ; air ; cold ; energy balance ; energy conservation ; energy efficiency ; entropy ; equations ; exergy ; heat ; mathematical models ; refrigeration ; Combined cold and power system ; Advanced adiabatic compressed air energy storage ; Compression-absorption refrigeration ; [Mmim]DMP/CH3OH
Language	English
Dates of publication	2023-0719
Publishing place	Elsevier Ltd
Document type	Article ; Online
Note	Pre-press version
ZDB-ID	2019804-8
ISSN	0360-5442 ; 0360-5442
ISSN (online)	0360-5442
ISSN	0360-5442
DOI	10.1016/j.energy.2023.128474
Database	NAL-Catalogue (AGRICOLA)

Full text online

Accessible to users with ZB MED library card

Order via subito

Details ▾
- Full text online
- Order with fees

Article ; Online: Exploring the feasibility of monolayer Mg2N as an anode material for alkali metal ion batteries: A first principle calculation

Peng, Yuntong / Zhang, Zhongyong / Wang, Yazhou / Zhou, Naigen / Brodnikovskyi, Yehor

Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2023 May 27, p.131718-

2023 , Page(s) 131718–

Abstract: To meet the growing demand for energy storage devices, anode material with good electrochemical performance is urgently needed. In view of the lighter anode material contributing to high specific capacity, this study examines the feasibility of Mg₂N ... ...

Abstract	To meet the growing demand for energy storage devices, anode material with good electrochemical performance is urgently needed. In view of the lighter anode material contributing to high specific capacity, this study examines the feasibility of Mg₂N monolayer as an anode material for alkali metal ion batteries based on the first principle calculations. A comprehensive study was carried out which includes the stability, electronic properties and electrochemical performance for Li/Na/K-ion batteries (LIBs/NIBs/KIBs). The results of phonopy spectrum and ab initio molecular dynamics (AIMD) calculations demonstrated that monolayer Mg₂N possesses high dynamic and thermal stability. The electronic band structure and density of states indicated the superior conductivity of Mg₂N, ideal for the use of electrode material. The calculation of electrochemical performance revealed that Mg₂N exhibits ultra-high theoretical specific capacities of 2140 mAh g⁻¹ and 863 mAh g⁻¹ as an anode material for LIBs and NIBs that far surpass the specific capacities of graphite. The low diffusion barrier (both below 0.01eV for LIBs/NIBs) ensures fast ion transport during the charging/discharging process. The aforementioned results suggested that Mg₂N shows the potential as a promising anode material for LIBs and NIBs. This work may guide the design of anode material for alkali metal ion batteries.
Keywords	anodes ; electrochemistry ; energy ; graphene ; molecular dynamics ; thermal stability ; Electrochemical performance ; Mg2N monolayer ; Anode material ; Alkali metal ion batteries ; First principle calculation
Language	English
Dates of publication	2023-0527
Publishing place	Elsevier B.V.
Document type	Article ; Online
Note	Pre-press version
ZDB-ID	1500517-3
ISSN	0927-7757
ISSN	0927-7757
DOI	10.1016/j.colsurfa.2023.131718
Database	NAL-Catalogue (AGRICOLA)

Full text online

Accessible to users with ZB MED library card

Order via subito

Details ▾
- Full text online
- Order with fees

Article: Phosphorus recovery from wastewater by struvite in response to initial nutrients concentration and nitrogen/phosphorus molar ratio

Wang, Yazhou / Mou, Jiawan / Liu, Xiaoning / Chang, Jianbo

Science of the total environment. 2021 Oct. 01, v. 789

2021

Abstract: Nutrients recovery from wastewater using struvite crystallization has received significant attention because the recovered nutrients can be used as a fertilizer in agriculture. However, the wastewater with different composition of nutrients might exert ... ...

Abstract	Nutrients recovery from wastewater using struvite crystallization has received significant attention because the recovered nutrients can be used as a fertilizer in agriculture. However, the wastewater with different composition of nutrients might exert distinct struvite characteristics. The objective of this study is to explore the influence of nitrogen/phosphorus (N/P) molar ratio and initial nutrient concentrations on the phosphorus (P) recovery from wastewater and the crystallographic properties of struvite through batch experiments. Both the higher nutrients concentrations and N/P molar ratio in the wastewater resulted in higher recovery of P. However, initial nutrients concentration in the wastewater posed a larger effect on the formation of struvite than that of initial N/P ratio. The ratio of N to P consumed during the process varied with varying the N/P ratio or the initial nutrients concentration, indicating the existence of different crystallization mechanisms under different elemental compositions in the wastewater. The decline in solution pH was negatively correlated with the N/P ratio, whereas it was positively correlated with the nutrient concentration. The crystals produced were mainly rough (dendritic) under the N/P ratio of 2, while the morphology evolved from a regular coffin-like to irregular columnar with the increase in N/P ratio from 4 to 10. Meanwhile, the shape of the irregular cylinder gradually changed from elongated needle shape to the thick rods appearance with the increase in the nutrients concentration. Higher N/P ratio increased the nucleation rate, resulting in finer particles and an uneven crystal size distribution, but purer struvite crystals. The purity of struvite was also positively correlated with the initial nutrients concentration. The Visual MINTEQ modelling analysis demonstrated that the supersaturation ratio of struvite gradually increased with the increase in the N/P ratio or nutrients concentration, which led to a positive effect on struvite crystallization.
Keywords	crystallization ; environment ; fertilizers ; magnesium ammonium phosphate ; nitrogen ; nutrient content ; pH ; phosphorus ; wastewater
Language	English
Dates of publication	2021-1001
Publishing place	Elsevier B.V.
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2021.147970
Database	NAL-Catalogue (AGRICOLA)

Full text online

Accessible to users with ZB MED library card

In stock of ZB MED Bonn / Germany

Z 74/341: 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 ▾

Article: A review on the incorporation and potential mechanism of heavy metals on the recovered struvite from wastewater

Liu, Xiaoning / Wang, Yazhou / Chang, Jianbo

Water research. 2021 Dec. 01, v. 207

2021

Abstract: Phosphorus, as a non-renewable element, is flowing out too fast in the past decades. To sustain the development of this globally scarce resource, efficient measures were taken to recover more phosphorus in the struvite form from wastewater. However, ... ...

Abstract	Phosphorus, as a non-renewable element, is flowing out too fast in the past decades. To sustain the development of this globally scarce resource, efficient measures were taken to recover more phosphorus in the struvite form from wastewater. However, heavy metals in the wastewater might produce an inhibitory effect on phosphorus recovery, and even worse, pollutants might be incorporated in/onto the crystals precipitated. Impurities on struvite will reduce the quality of struvite as a potential slow-release fertilizer and affect the safe application of struvite in agriculture. This review aims to identify the trends in the literature to present the residues of heavy metals in struvite. It summarizes the current status in the residues of main metal elements on crystals and its response to wastewater properties, composition, and oxidation state of metals. The adsorption process and potential adsorption mechanism of heavy metals during the struvite crystallization are deeply explored, which might determine the latter release rate of metals when applying into the soil. Possible solutions are further provided to minimize the amounts of heavy metals mainly through adjusting operational conditions or employing pretreatment methods. Finally, this review critically analyzes the limitation gap between theory and actual generalization and potential application of struvite products in the market, and corresponding perspectives in the future are given to safely utilize the phosphorus resource from wastewater in the form of struvite.
Keywords	adsorption ; crystallization ; magnesium ammonium phosphate ; markets ; oxidation ; phosphorus ; research ; slow-release fertilizers ; soil ; wastewater ; water
Language	English
Dates of publication	2021-1201
Publishing place	Elsevier Ltd
Document type	Article
ZDB-ID	202613-2
ISSN	1879-2448 ; 0043-1354
ISSN (online)	1879-2448
ISSN	0043-1354
DOI	10.1016/j.watres.2021.117823
Database	NAL-Catalogue (AGRICOLA)

Full text online

Accessible to users with ZB MED library card

In stock of ZB MED Bonn / Germany

Z 78/260: Show issues
Z 3381: 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 ▾

Article: Impact of failure mode and effects analysis-based emergency management on the effectiveness of craniocerebral injury treatment.

Shao, Xiao-Lan / Wang, Ya-Zhou / Chen, Xiong-Hui / Ding, Wen-Juan

World journal of clinical cases

2022 Volume 10, Issue 2, Page(s) 554–562

Abstract: Background: Craniocerebral injuries encompass brain injuries, skull fractures, cranial soft tissue injuries, and similar injuries. Recently, the incidence of craniocerebral injuries has increased dramatically due to the increased numbers of traffic ... ...

Abstract	Background: Craniocerebral injuries encompass brain injuries, skull fractures, cranial soft tissue injuries, and similar injuries. Recently, the incidence of craniocerebral injuries has increased dramatically due to the increased numbers of traffic accidents and aerial work injuries, threatening the physical and mental health of patients. Aim: To investigate the impact of failure modes and effects analysis (FMEA)-based emergency management on craniocerebral injury treatment effectiveness. Methods: Eighty-four patients with craniocerebral injuries, treated at our hospital from November 2019 to March 2021, were selected and assigned, using the random number table method, to study ( Results: For the study group, the assessed parameters [pre-hospital emergency response time (9.13 ± 2.37 min), time to receive a consultation (2.39 ± 0.44 min), time needed to report imaging findings (1.15 ± 4.44 min), and test reporting time (32.19 ± 6.23 min)] were shorter than those for the control group (12.78 ± 4.06 min, 3.58 ± 0.71 min, 33.49 ± 5.51 min, 50.41 ± 11.45 min, respectively; Conclusion: FMEA-based craniocerebral injury management effectively shortens the time spent on emergency care, reduces inflammatory stress and complication risk levels, and helps improve patient prognoses, while achieving high patient care satisfaction levels.
Language	English
Publishing date	2022-01-13
Publishing country	United States
Document type	Journal Article
ISSN	2307-8960
ISSN	2307-8960
DOI	10.12998/wjcc.v10.i2.554
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.

To top

Full text online

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

Full text online

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

Inter-library loan at ZB MED