Foot Ulcers and Sleep Quality in Type 2 Diabetes Mellitus

Suiçmez Eylem,Tural Egemen,Dayan Akın 대한수면학회 2024 sleep medicine research Vol.15 No.1

Background and Objective The study aimed to investigate the sleep quality of type 2 diabetic patients with and without foot ulcers, to determine whether there was a difference in sleep quality between them, and to examine the effect of diabetic foot ulcers on sleep quality.Methods Our prospective cross-sectional study was conducted between April and September 2021 at the Family Medicine Diabetes Clinic and Diabetic Foot Clinic of the hospital. A total of 146 patients were included in the study, of whom 64 had foot ulcers and 82 did not, and met the inclusion criteria. The patients were administered a patient information questionnaire that included sociodemographic data, waist circumference, HbA1c, diabetes duration, diabetes complication information, as well as the Pittsburgh Sleep Quality Index.Results The mean age of the individuals participating in the study was 61.94 ± 10.34 years. According to the Pittsburgh Sleep Quality Index classification, 25.0% (n = 16) of individuals with diabetic foot ulcers had good sleep quality while 42.7% (n = 35) of individuals without diabetic foot ulcers had good sleep quality. A statistically significant relationship was found between diabetic foot ulcers and Pittsburgh Sleep Quality Index classification (p = 0.026). According to the multivariate logistic regression model, diabetic foot ulcers increased the risk of poor sleep quality by 2.64 times.Conclusions Our study showed that the presence of diabetic foot ulcers adversely affects sleep quality. Good sleep quality contributes to quality of life, wound healing, and diabetes control. Therefore, improving sleep quality in diabetic foot patients is important.

古代開封水環境變化考察

程遂營 중국사학회 2006 中國史硏究 Vol.41 No.-

Comprehensive Utilisation of Biomass Tar for High Volumetric Capacitance Porous Carbon and Modified Bio-resin

Sui Guanghui,Cheng Yanyan,Chen Kai,Huang Zhifang,Luo MingHong 한국화학공학회 2024 Korean Journal of Chemical Engineering Vol.41 No.3

Biomass tar is a by-product generated during biomass gasifi cation. Because of the toxic and harmful nature of biomass tar, its treatment method has become the concern of environmental protection fi eld and related researchers. In this paper, biomass tar was separated into the heavy tar and the phenol-containing liquor after enrichment. Porous carbon (PCs) was prepared using the heavy tar by one-step carbonization activation. The results show that PC_3 has the highest specifi c surface area of 352 m 2 g −1 and mesoporosity ratio of 56.25%. The as-prepared electrode displayed an excellent electrochemical performance for portable super-capacitors, which is a volumetric capacitance of 349 F cm −3 . Assembled super-capacitors have an energy density of 21.65 Wh kg −1 at a power density of 123 W kg −1 . The bio-resins were modifi ed with the phenolcontaining liquor. The results showed that the thermal stability of modifi ed resins had been improved and the structure did not change signifi cantly. This research provides an environmentally friendly and comprehensive utilisation methods for the utilisation of biomass tar.

A Study on the Problems and Solutions to China’s Customs Agency System

Sui Yue,장은희 한국무역경영학회 2023 한국무역경영연구 Vol.- No.32

The Customs Declaration Agency System in China is a special civil legal act that emerged with the development of the commodity economy. This paper analyzed the historical background and legislative status of the customs declaration agency system in the two major legal systems, deeply explores the political, economic, and social background of the establishment of the agency system. In addition, the step-by-step development process of China's Customs Reporting Agency System was examined, and the customs reporting agency system and other agency systems were compared and analyzed in detail. There is a close relationship between them, but there are also essential differences, so it is necessary to use this system efficiently with a clear understanding of China's Customs Reporting Agency System. In China, Customs Agent Mode is a large part of all customs modes, and has gradually become a major customs declaration form. On the other hand, however, because China's market economy is still relatively short, the establishment of a legal framework in the area of Customs Agents is relatively weak, and there is still an ambiguous aspect of the legal nature of customs agents. Accordingly this paper analyzes the problems of the Chinese Customs Reporting Agent System in depth and presents various countermeasures, including development measures, completion of legislation, and improvement of the legal responsibilities of the relevant parties. Furthermore, this paper not only analyzed the existing Customs Agent problem in simple terms, but also suggested how to develop the unified Customs Agent Law and the Legal Status of the organization, and further suggested ways to improve the administrative responsibility of Customs Agents.

Irreversibly Adsorbed Tri-metallic PtBiPd/C Electrocatalyst for the Efficient Formic Acid Oxidation Reaction

Sui, Lijun,An, Wei,Rhee, Choong Kyun,Hur, Seung Hyun The Korean Electrochemical Society 2020 Journal of electrochemical science and technology Vol.11 No.1

The PtBi/C and PtBiPd/C electrocatalysts were synthesized via the irreversible adsorption of Pd and Bi ions precursors on commercial Pt/C catalysts. XRD and XPS revealed the formation of an alloy structure among Pt, Bi, and Pd atoms. The current of direct formic acid oxidation (I_d) increased ~ 8 and 16 times for the PtBi/C and PtBiPd/C catalysts, respectively, than that of commercial Pt/C because of the electronic, geometric, and third body effects. In addition, the increased ratio between the current of direct formic acid oxidation (I_d) and the current of indirect formic acid oxidation (I_ind) for the PtBi/C and PtBiPd/C catalysts suggest that the dehydrogenation pathway is dominant with less CO formation on these catalysts.

Annealing temperature effect on self-assembled Au droplets on Si (111)

Sui, Mao,Li, Ming-Yu,Kim, Eun-Soo,Lee, Jihoon Springer 2013 NANOSCALE RESEARCH LETTERS Vol.8 No.1

<P>We investigate the effect of annealing temperature on self-assembled Au droplets on Si (111). The annealing temperature is systematically varied while fixing other growth parameters such as deposition amount and annealing duration clearly to observe the annealing temperature effect. Self-assembled Au droplets are fabricated by annealing from 50°C to 850°C with 2-nm Au deposition for 30 s. With increased annealing temperatures, Au droplets show gradually increased height and diameter while the density of droplets progressively decreases. Self-assembled Au droplets with fine uniformity can be fabricated between 550°C and 800°C. While Au droplets become much larger with increased deposition amount, the extended annealing duration only mildly affects droplet size and density. The results are systematically analyzed with cross-sectional line profiles, Fourier filter transform power spectra, height histogram, surface area ratio, and size and density plots. This study can provide an aid point for the fabrication of nanowires on Si (111).</P>

The Ant World

Sui Yi 한국콘텐츠학회 2017 ICCC International Digital Design Invitation Exhib Vol.2017 No.12

An Improved Modulation Scheme for Voltage Balancing in Modular Multilevel Converter

Sui, Shunke,Yang, Rongfeng,Xu, Dianguo The Korean Institute of Electrical Engineers 2014 The Journal of International Council on Electrical Vol.4 No.2

With the continuous development of power electronic technology toward the high voltage and high-power conversion, the Modular Multilevel Converter (MMC) has attracted research attention. Since a large number of capacitors, voltage balancing problem becomes one of the key technologies of the MMC. To resolve the voltage balancing problem, this paper presents a novel voltage balancing modulation scheme, which control the instantaneous power of each sub-module timely by adjusting carriers offset in PWM, and the respective capacitor voltage could be stabilized at a set value. Simulation results based on MATLAB / SIMULINK environment are provided to testify to the effectiveness of the proposed method.

Giant enhancement of the intrinsic spin Hall conductivity in β -tungsten via substitutional doping

Sui, Xuelei,Wang, Chong,Kim, Jinwoong,Wang, Jianfeng,Rhim, S. H.,Duan, Wenhui,Kioussis, Nicholas American Physical Society 2017 Physical Review B Vol.96 No.24

<P>A key challenge in manipulating the magnetization in heavy-metal/ferromagnetic bilayers via the spin-orbit torque is to identify materials that exhibit an efficient charge-to-spin current conversion. Ab initio electronic structure calculations reveal that the intrinsic spin Hall conductivity (SHC) for pristine beta-W is about 60% larger than that of alpha-W. More importantly, we demonstrate that the SHC of beta-W can be enhanced via Ta alloying. This is corroborated by spin Berry curvature calculations of W1-x Ta-x (x similar to 12.5%) alloys which show a giant enhancement of the spin Hall angle of up to approximate to-0.5. The underlying mechanism is the synergistic behavior of the SHC and longitudinal conductivity with the Fermi level position. These findings not only pave the way for enhancing the intrinsic spin Hall effect in beta-W, but also provide guidelines to exploit substitutional alloying to tailor the spin Hall effect in various materials.</P>

Der p2 Internalization by Epithelium Synergistically Augments Toll-like Receptor-Mediated Proinflammatory Signaling

Sui-Chu Yin,En-Chih Liao,Chih-Liang Chiu,Ching-Yun Chang,Jaw-Ji Tsai 대한천식알레르기학회 2015 Allergy, Asthma & Immunology Research Vol.7 No.4

Purpose: House-dust-mite (HDM) major allergen Der p2 shares homology and function with Toll-like receptor (TLR) signaling protein myeloid differentiation- 2 (MD2) and may lead to airway inflammation. Should Der p2 be internalized by human airway epithelium, it has the theoretical propensity to potentiate epithelium activation. This study aimed to demonstrate the internalization of Der p2 by airway epithelium and to investigate the effects of Der p2 on MD2 expression and epithelium activation. Methods: Internalization of recombinant, enhanced green fluorescent protein-labelled Der p2 (rDer p2-EGFP) into human airway epithelium (BEAS-2B) was tracked by laser confocal microscopy and confirmed by immunoblotting. Reverse-transcription polymerase chain reaction (RT-PCR), immunoblotting, and immunohistochemical staining were used to determine the effect of Der p2 on MD2 expression in vitro and ex vivo. Expression of messenger RNA (mRNA) encoding receptors/cytokines was measured by RT-PCR. Secretion of interleukin-6/interleukin-8 (IL-6/IL-8) was measured by enzyme-linked immunosorbent assay (ELISA). Results: Internalization of Der p2 by BEAS-2B was confirmed by confocal microscopy and immunoblotting using rDer p2-EGFP and rDer p2, respectively. Expression of MD2 protein was increased in BEAS-2B and human nasal polyp airway epithelium cultured with rDer p2. Recombinant Der p2-cultured BEAS-2B caused little spontaneous IL-6/IL-8 secretion but significantly augmented by TLR ligand LPS. IL-6 secretion was up-regulated after MD2 transfection. Internalization of Der p2 was reduced by TLR2 RNA knockdown. Dexamethasone, calcitriol, anti-MD2/anti-TLR2 antibodies, and signalling inhibitors significantly reduced LPS+Der p2-induced IL-6/IL-8 secretion. Conclusions: Human airway epithelium may internalize Der p2, which potentiates the response to environmental proinflammatory stimuli through MD2 and TLRs. This study highlights a novel mechanism and alleviates IL-6/IL-8 secretion in mite-induced airway inflammation