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1.
Phys Chem Chem Phys ; 26(17): 13395-13404, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38647031

RESUMO

Carbonaceous materials are promising candidates as anode materials for non-lithium-ion batteries (NLIBs) due to their appealing properties such as good electrical conductivity, low cost, and high safety. However, graphene, a classic two-dimensional (2D) carbon material, is chemically inert to most metal atoms, hindering its application as an electrode material for metal-ion batteries. Inspired by the unique geometry of a four-penta unit, we explore a metallic 2D carbon allotrope C5-10-16 composed of 5-10-16 carbon rings. The C5-10-16 monolayer is free from any imaginary frequencies in the whole Brillouin zone. Due to the introduction of a non-sp2 hybridization state into C5-10-16, the extended conjugation of π-electrons is disrupted, leading to the enhanced surface activity toward metal ions. We investigate the performance of C5-10-16 as the anode for sodium/potassium-ion batteries by using first-principles calculations. The C5-10-16 sheet has high theoretical specific capacities of Na (850.84 mA h g-1) and K (743.87 mA h g-1). Besides, C5-10-16 exhibits a moderate migration barrier of 0.63 (0.32) eV for Na (K), ensuring rapid charging/discharging processes. The average open-circuit voltages of Na and K are 0.33 and 0.62 V, respectively, which are within the voltage acceptance range of anode materials. The fully sodiated (potassiated) C5-10-16 shows tiny lattice expansions of 1.4% (1.3%), suggesting the good reversibility. Moreover, bilayer C5-10-16 significantly affects both the adsorption strength and the mobility of Na or K. All these results show that C5-10-16 could be used as a promising anode material for NLIBs.

2.
Support Care Cancer ; 31(12): 706, 2023 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-37975908

RESUMO

PURPOSE: Psychological and social support are crucial in treating cancer. Cancer resource centers provide patients with cancer and their families with services that can help them through cancer treatment, ensure that patients receive adequate treatment, and reduce cancer-related stress. These centers offer various services, including medical guidance, health education, emotional assistance (e.g., consultations for cancer care), and access to resources such as financial aid and post recovery programs. In this study, we comprehensively analyzed how cancer resource centers assist patients with cancer and improve their clinical outcomes. METHODS: The study participants comprised patients initially diagnosed with head and neck cancer or esophageal cancer. A total of 2442 patients from a medical center in Taiwan were included in the study. Data were analyzed through logistic regression and Cox proportional hazards regression. RESULTS: The results indicate that unemployment, blue-collar work, and a lower education level were associated with higher utilization of cancer resource center services. The patients who were unemployed or engaged in blue-collar work had higher risks of mortality than did their white-collar counterparts. Patient education programs can significantly improve the survival probability of patients with cancer. On the basis of our evaluation of the utilization and benefits of services provided by cancer resource centers, we offer recommendations for improving the functioning of support systems for patients with cancer and provide suggestions for relevant future research. CONCLUSIONS: We conclude that cancer resource centers provide substantial support for patients of low socioeconomic status and improve patients' survival.


Assuntos
Neoplasias de Cabeça e Pescoço , Humanos , Hospitais , Apoio Social , Taiwan
3.
J Environ Manage ; 278(Pt 2): 111539, 2021 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-33157465

RESUMO

The persulfate activation by nanosecond pulsed gas-liquid discharge (NPG-LD) is employed to degrade the trimethoprim (TMP) in water. The results show that persulfate addition enhances the degradation of TMP by NPG-LD through an obvious synergetic effect. With treatment time of 50 min, the high removal efficiency and energy yield reach 94.6% and 0.57 gkWh-1 in air NPG-LD with the addition of persulfate, respectively, which is 13.5% and 0.09 gkWh-1 higher than that in solo air NPG-LD, respectively. Correspondingly, the calculated synergetic factor achieves 1.62, indicating the synergetic effect is established. The activation mechanism of persulfate by NPG-LD is analyzed by the measurement of reactive species and the effects of radical scavenger addition on TMP removal. It is found that the synergetic effect between NPG-LD and persulfate is attributed to the increased production of OH, H2O2, and . Besides, the TMP degradation by NPG-LD and persulfate synergetic system is influenced by discharge working gas, pulse voltage, addition dosage of persulfate, initial TMP concentration, and initial pH value. Subsequently, the degradation pathway of TMP is analyzed using LC-MS/MS.


Assuntos
Trimetoprima , Poluentes Químicos da Água , Cromatografia Líquida , Peróxido de Hidrogênio , Oxirredução , Plasma/química , Sulfatos , Espectrometria de Massas em Tandem , Água , Poluentes Químicos da Água/análise
4.
Plant Cell ; 29(8): 1970-1983, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28778955

RESUMO

Histone deacetylases (HDACs) play important roles in regulating gene expression. In yeast and animals, HDACs act as components of multiprotein complexes that modulate transcription during various biological processes. However, little is known about the interacting proteins of plant HDACs. To identify the plant HDAC complexes and interacting proteins, we developed an optimized workflow using immunopurification coupled to mass spectrometry-based proteomics in Arabidopsis thaliana We found that the histone deacetylase HDA6 can interact with the histone methyltransferases SUVH4, SUVH5, and SUVH6 (SUVH4/5/6). Domain analysis revealed that the C-terminal regions of HDA6 and SUVH5 are important for their interaction. Furthermore, HDA6 interacts with SUVH4/5/6 and coregulates a subset of transposons through histone H3K9 methylation and H3 deacetylation. In addition, two phosphorylated serine residues, S427 and S429, were unambiguously identified in the C-terminal region of HDA6. Phosphomimetics (amino acid substitutions that mimic a phosphorylated protein) of HDA6 resulted in increased enzymatic activity, whereas the mutation of S427 to alanine in HDA6 abolished its interaction with SUVH5 and SUVH6, suggesting that the phosphorylation of HDA6 is important for its activity and function.


Assuntos
Proteínas de Arabidopsis/metabolismo , Arabidopsis/enzimologia , Arabidopsis/genética , Elementos de DNA Transponíveis/genética , Inativação Gênica , Histona Desacetilases/metabolismo , Histona-Lisina N-Metiltransferase/metabolismo , Motivos de Aminoácidos , Sequência de Aminoácidos , Proteínas de Arabidopsis/química , Montagem e Desmontagem da Cromatina , Cromatografia Líquida , Sequência Conservada , Flores/fisiologia , Histona Desacetilases/química , Histona Metiltransferases , Histonas/metabolismo , Lisina/metabolismo , Metiltransferases , Modelos Biológicos , Proteínas Mutantes/metabolismo , Mutação/genética , Fenótipo , Fosforilação , Fosfosserina/metabolismo , Ligação Proteica , Processamento de Proteína Pós-Traducional , Espectrometria de Massas em Tandem , Técnicas do Sistema de Duplo-Híbrido
5.
Guang Pu Xue Yu Guang Pu Fen Xi ; 33(1): 40-3, 2013 Jan.
Artigo em Zh | MEDLINE | ID: mdl-23586220

RESUMO

In the present study, dielectric barrier homogenous discharge in nitrogen was obtained between large plate electrodes (150 x 300 mm) at atmospheric pressure and the emission spectra of N2 (C3pi(u) --> B3 pi(g)) and N2+ (B2 sigma(u)+ --> X2 sigma(g)+ 0-0 391.4 nm) were recorded. It was found that both the emission intensities of N2 (C3 pi(u) --> B3 pi(g) and N2+ (B2 sigma(u)+ --> X2 sigma(g)+ 0-0 391.4 nm) increase with the rising of the applied voltage and the driving frequency, respectively. The main physicochemical formation mechanism of N2+ (B2 sigma(u)+) in N2 and He+N2 mixtures homogenous discharge was discussed, and the penning ionization was proved to be the dominant formation mechanism.

6.
Health Policy ; 129: 104709, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36725380

RESUMO

OBJECTIVE: The purpose of this study was to use a deep learning model and a traditional statistical regression model to predict the long-term care insurance decisions of registered nurses. METHODS: We Prospectively surveyed 1,373 registered nurses with a minimum of 2 years of full-time working experience at a large medical center in Taiwan: 615 who already owned long-term care insurance (LTCI), 332 who had no intention to purchase LTCI (group 1), and 426 who intended to purchase LTCI (group 2). RESULTS: After inverse probability of treatment weighting (IPTW), no statistically significant differences were identified in the study characteristics of the two groups. All the performance indices for the deep neural network (DNN) model were significantly higher than those of the multiple logistic regression (MLR) model (P<0.001). The strongest predictor of an individual's long-term care insurance decision was their risk propensity score, followed by their caregiving responsibilities, whether they live with older adult relatives, their experiences of catastrophic illness, and their openness to experience. CONCLUSIONS: The DNN model is useful for predicting long-term care insurance decisions. Its prediction accuracy can be increased through training with temporal data collected from registered nurses. Future research can explore designs for two-level or multilevel models that explain the contextual effects of the risk factors on long-term care insurance decisions.


Assuntos
Aprendizado Profundo , Seguro de Assistência de Longo Prazo , Humanos , Idoso , Modelos Logísticos , Modelos Estatísticos , Inquéritos e Questionários , Assistência de Longa Duração
7.
Artigo em Inglês | MEDLINE | ID: mdl-23049609

RESUMO

The objective of this study was to assess the efficacy and safety of electroacupuncture in 138 patients with earthquake-caused PTSD using Randomized Controlled Trials (RCTs). 138 cases enrolled were randomly assigned to an electro-acupuncture group and a paroxetine group. The electro-acupuncture group was treated by scalp electro-acupuncture on Baihui (GV 20), Sishencong (EX-HN 1), Shenting (GV 24), and Fengchi (GB 20), and the paroxetine group was treated with simple oral administration of paroxetine. The efficacy and safety of the electro-acupuncture on treatment of 69 PTSD patients were evaluated using Clinician-Administered PTSD Scale (CAPS), Hamilton Depression Scale (HAMD), Hamilton Anxiety Scale (HAMA), and Treatment Emergent Symptom Scale (TESS) according to clinical data. The total scores of CAPS, HAMD, and HAMA in the two groups after treatment showed significant efficacy compared to those before treatment. The comparison of reduction in the scores of CAPS, HAMD, and HAMA between the two groups suggested that the efficacy in the treated group was better than that in the paroxetine group. The present study suggested that the electro-acupuncture and paroxetine groups have significant changes in test PTSD, but the electro-acupuncture 2 group was more significant.

8.
Healthcare (Basel) ; 9(1)2021 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-33478041

RESUMO

The rising aging population contributes to increased caregiver burden and a greater need for long-term care services, thereby posing stronger financial burden. The current study aimed to examine the effect of income, risk-taking propensity, personality traits, and life experience on the ownership of and intention to own private long-term care insurance (LTCI). Primary data were collected from 1373 registered nurses with a minimum of two years of full-time working experience. Multinomial logistic regression was used to examine the relationships between ownership of LTCI and personal discretionary income, risk propensity, openness to experience, and life experience. Personal discretionary income was a crucial positive indicator in predicting ownership of LTCI. Higher risk-taking propensity was found to be negatively related to both currently own and future intention to own private LTCI. Participants who currently live with elders and who agree to caregiving responsibilities with government-provided cash allowance showed future intention to purchase LTCI. Little evidence was found for an association between life experience and future intention to own LTCI. Income, risk-taking propensity, and personality traits differ in their impact on ownership of and future intention to own LTCI. Our results provide policy makers with a better understanding of the forces driving demand in the private LTCI market, as well as the accompanying implications for public LTCI.

9.
Inquiry ; 58: 469580211059998, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34812691

RESUMO

OBJECTIVES: This study examined the factors associated with better accreditation outcomes among nursing homes. METHOD: A total of 538 nursing homes in Taiwan were included in this study. Measures included accreditation scores, external factors (household income, Herfindahl-Hirschman Index, old-age dependency ratio, population density, and number of older adult households), organizational factors (hospital-based status, chain-affiliated status, occupancy rate, the number of registered nurses or nurse aides per bed, and bed size), and internal factors (accountability, deficiencies, person-centered care, nursing skills, quality control, and integrated care). RESULTS: Bed size, hospital-based status, accountability, deficiencies, person-centered care, nursing skills, quality control, and integrated care were found to predict accreditation. CONCLUSION: Among all variables in this study, the quality indicators contributed to the most variation, followed by organizational factors. External environmental factors played a minor role in predicting accreditation. A focus on quality of care would benefit not only the residents of a nursing home but also facilitate its accreditation.


Assuntos
Acreditação , Casas de Saúde , Idoso , Hospitais , Humanos , Instituições de Cuidados Especializados de Enfermagem , Taiwan
10.
J Hazard Mater ; 403: 123626, 2021 02 05.
Artigo em Inglês | MEDLINE | ID: mdl-32795816

RESUMO

Humic acid (HA) removal research focuses on the global water treatment industry. In this work, efficient HA degradation with an ultra-high synergetic intensity is achieved by combined bubble discharge with activated carbon (AC). Adding AC to the discharge greatly improves HA removal efficiency and degradation speed; the synergetic intensity reaches 651.52% in the combined system, and the adsorption residual on AC is 4.52%. After 90 min of treatment, the HA removal efficiency reaches 98.90%, 31.29%, and 7.61% in the plasma-AC combined, solo bubble discharge, and solo AC adsorption systems, respectively. During the plasma process, the number of pore structures and active sites and the amount of oxygen-containing functional groups on the AC surface increase, resulting in a higher adsorption capacity to reactive species (H2O2 and O3) and HA and promoting interactions on the AC surface. For HA mineralization, the presence of AC greatly promotes the destruction of aromatic structures and chromophoric HA functional groups.

11.
Neural Regen Res ; 15(10): 1912-1919, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32246640

RESUMO

We have previously shown that induction of ketosis by ketogenic diet (KD) conveyed neuroprotection following spinal cord injury in rodent models, however, clinical translation may be limited by the slow raise of ketone levels when applying KD in the acute post-injury period. Thus we investigated the use of exogenous ketone supplementation (ketone sodium, KS) combined with ketogenic diet as a means rapidly inducing a metabolic state of ketosis following spinal cord injury in adult rats. In uninjured rats, ketone levels increased more rapidly than those in rats with KD alone and peaked at higher levels than we previously demonstrated for the KD in models of spinal cord injury. However, ketone levels in KD + KS treated rats with SCI did not exceed the previously observed levels in rats treated with KD alone. We still demonstrated neuroprotective effects of KD + KS treatment that extend our previous neuroprotective observations with KD only. The results showed increased neuronal and axonal sparing in the dorsal corticospinal tract. Also, better performance of forelimb motor abilities were observed on the Montoya staircase (for testing food pellets reaching) at 4 and 6 weeks post-injury and rearing in a cylinder (for testing forelimb usage) at 6 and 8 weeks post-injury. Taken together, the findings of this study add to the growing body of work demonstrating the potential benefits of inducing ketosis following neurotrauma. Ketone salt combined with a ketogenic diet gavage in rats with acute spinal cord injury can rapidly increase ketone body levels in the blood and promote motor function recovery. This study was approved by the Animal Care Committee of the University of British Columbia (protocol No. A14-350) on August 31, 2015.

12.
Spectrochim Acta A Mol Biomol Spectrosc ; 207: 294-300, 2019 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-30265944

RESUMO

The paper proposes a simple and convenient approach to represent the discharge uniformity of nanosecond-pulse dielectric barrier discharge (DBD) in air by observation of the ratio of N2+ (B3Σu+ → X3Σg+, 0-0, 391.4 nm) to N2 (C3Πu → B3Πg, 2-5, 394.3 nm) intensities. The DBDs at different pulse peak voltages, discharge gap distances, dielectric materials and thicknesses were investigated by recording their single-pulse-shot discharge images and N2+/N2 ratios to verify the feasibility of the above innovative approach. The results show that the ratios of N2+/N2 are in the range of 0.18-0.6within our experimental parameters, which is respect to the reduced electric field (E/N, where E is the field strength and N is gas number density) strength of 260-440 Td (1 Td = 10-17 V·cm2). And it is indicated that a lower N2+/N2 ratio would be found in a higher pulse peak voltage or/and a lower discharge gap distance, which benefits for improving the discharge uniformity of nanosecond-pulse DBD. The thickness and permittivity of dielectric material also affect the E/N strength and discharge uniformity to a certain extent, but the effects are ambiguous due to additional factors of dielectric materials. In addition, the theoretical basis and application scope of this approach were also discussed.

13.
Guang Pu Xue Yu Guang Pu Fen Xi ; 26(9): 1589-93, 2006 Sep.
Artigo em Zh | MEDLINE | ID: mdl-17112023

RESUMO

Atomic hydrogen plays important roles in chemical vapor deposition of functional materials, plasma etching, and surface cleaning. The present work introduces the fundamental principle to determine atomic hydrogen density via optical emission spectroscopy using Ar as an actinometer, and also reports the experimental results of atomic hydrogen density in the DBD discharge hydrogen plasmas. The variations of atomic hydrogen density and the hydrogen dissociation fraction as a function of pressure were calculated based on some of the available electron-impact excitation cross section and quenching cross sections in the literatures. In this work, as the pressure increases from 0.32 to 5.1 kPa, the hydrogen dissociation fraction decreases from 5.2% to 0.089%, and the atomic hydrogen density decreases from 4.9 x 10(15) cm(-3) to 1.3 x 10(15) cm(-3). The variations of H atom Balmer lines and Ar (750.4 nm) emission intensity as functions of gas pressure, discharge voltage, and frequency were also investigated.

14.
Spectrochim Acta A Mol Biomol Spectrosc ; 161: 186-94, 2016 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-26924210

RESUMO

In this paper, an atmospheric surface barrier discharge (SBD) generated by annular electrodes in quartz tube is presented through employing bipolar nanosecond pulse voltage in air. The discharge images, waveforms of pulse voltage and discharge current, and optical emission spectra emitted from the discharges are recorded and calculated. A spectra simulation method is developed to separate the overlap of the secondary diffraction spectra which are produced by grating in monochromator, and N2 (B(3)Πg→A(3)Σu(+)) and O (3p(5)P→3s(5)S2(o)) are extracted. The effects of pulse voltage and discharge power on the emission intensities of OH (A(2)Σ(+)→X(2)Пi), N2(+) (B(2)Σu(+)→X(2)Σg(+)), N2 (C(3)Πu→B(3)Πg), N2 (B(3)Πg→A(3)Σu(+)), and O (3p(5)P→3s(5)S2(o)) are investigated. It is found that increasing the pulse peak voltage can lead to an easier formation of N2(+) (B(2)Σu(+)) than that of N2 (C(3)Πu). Additionally, vibrational and rotational temperatures of the plasma are determined by comparing the experimental and simulated spectra of N2(+) (B(2)Σu(+)→X(2)Σg(+)), and the results show that the vibrational and rotational temperatures are 3250±20K and 350±5K under the pulse peak voltage of 28kV, respectively.

15.
Guang Pu Xue Yu Guang Pu Fen Xi ; 24(11): 1288-92, 2004 Nov.
Artigo em Zh | MEDLINE | ID: mdl-15762457

RESUMO

The emission spectra of OH(A2 sigma --> X2 pi, O-O), O(3p5 P --> 3s5 S2(0)) and H(a)(3P --> 2S) produced by the positive pulsed corona discharge of N2 and H2O mixture in a needle-plate reactor have been successfully recorded against a severe electromagnetic interference coming from the pulsed corona discharge at one atmosphere. The relative populations and the vibrational temperature of N2 (C, v') were determined. The emission intensity of OH(A2 sigma --> X2 pi, 0-0) is obtained through the simulation of the emission spectra of the delta v = +1 vibration transition band of N2(C3 pi(u) --> B3 pi(g)). Relative populations of OH(A2 sigma), O(3p5 P) and H(a)(3P) have been obtained by the emission intensity of OH(A2 sigma --> X2 pi, 0-0), O(3p5 P --> 3s5 S2(0)) and H(a)(3P --> 2S) and Einstein's transition probability. The effects of discharge voltage and pulse repetition rate and oxygen flow on the relative populations of OH(A2 sigma), O(3p5 P) and H(a)(3P) are investigated.

16.
Spectrochim Acta A Mol Biomol Spectrosc ; 117: 535-40, 2014 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-24036046

RESUMO

In this paper, a bipolar nanosecond high pulse voltage with 20 ns rising time was employed to generate homogeneous dielectric barrier discharges using the plate-plate electrode configuration in air at atmospheric pressure. The effects of pulse peak voltage, gas discharge gap, and dielectric plates made by different materials or thicknesses on the discharge homogeneity, voltage-current waveform, and optical emission spectra were investigated. Results show that aforementioned parameters have a strongly impact on the discharge homogeneity and the optical emission spectra, but it is hard to identify definitely their influences on the discharge voltage-current waveform. Homogeneous discharges were easily observed when using low permittivity dielectric plate and the emission intensity of N2 (C(3)Πu→B(3)Πg, 0-0, 337.1 nm) increases with the rising of pulse peak voltage and the permittivity of dielectric material but decreases with the increasing of gas discharge gap and the dielectric plate thickness. The rotational and vibrational temperatures (Trot and Tvib) were determined at Trot=350±5 K and Tvib=3045 K via fitting the simulative spectra of N2 (C(3)Πu→B(3)Πg, 0-2) with the measured one.


Assuntos
Ar/análise , Pressão Atmosférica , Condutividade Elétrica , Nitrogênio/química , Vibração , Eletroquímica , Eletrodos , Gases/química , Temperatura
17.
Artigo em Inglês | MEDLINE | ID: mdl-24845733

RESUMO

In this study, a bipolar nanosecond pulse with 20ns rising time is employed to generate air gas-liquid diffuse discharge plasma with room gas temperature in quartz tube at atmospheric pressure. The image of the discharge and optical emission spectra of active species in the plasma are recorded. The plasma gas temperature is determined to be approximately 390K by compared the experimental spectra with the simulated spectra, which is slightly higher than the room temperature. The result indicated that the gas temperature rises gradually with pulse peak voltage increasing, while decreases slightly with the electrode gap distance increasing. As an important application, bipolar nanosecond pulse discharge is used to sterilize the common microorganisms (Actinomycetes, Candida albicans and Escherichia coli) existing in drinking water, which performs high sterilization efficiency.


Assuntos
Água Potável/microbiologia , Gases em Plasma/química , Esterilização/instrumentação , Purificação da Água/instrumentação , Pressão Atmosférica , Difusão , Desenho de Equipamento , Temperatura Alta
18.
Spectrochim Acta A Mol Biomol Spectrosc ; 122: 107-12, 2014 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-24299982

RESUMO

In this study, a bipolar nanosecond pulsed power supply with 15 ns rising time is employed to generate an uniform dielectric barrier discharge using the wire-cylinder electrode configuration in atmospheric air. The images, waveforms of pulse voltage and discharge current, and the optical emission spectra of the discharges are recorded. The rotational and vibrational temperatures of plasma are determined by comparing the simulated spectra with the experimental spectra. The effects of pulse peak voltage, pulse repetition rate and quartz tube diameter on the emission intensities of N2 (C(3)Πu→B(3)Πg, 0-0) and N2(+)B(2)Σu(+)→X(2)Σg(+),0-0 and the rotational and vibrational temperatures have been investigated. It is found that the uniform plasma with low gas temperature can be obtained, and the emission intensities of N2 (C(3)Πu→B(3)Πg, 0-0) and N2(+)B(2)Σu(+)→X(2)Σg(+),0-0 rise with increasing the pulse peak voltage and pulse repetition rate, while decrease as the increase of quartz tube diameter. In addition, under the condition of 28 kV pulse peak voltage, 150 Hz pulse repetition rate and 7 mm quartz tube diameter, the plasma gas temperature is determined to be 330 K. The results also indicate that the plasma gas temperature keep almost constant when increasing the pulse peak voltage and pulse repetition rate but increase with the increase of the quartz tube diameter.


Assuntos
Ar , Eletricidade , Eletroquímica/métodos , Gases em Plasma/química , Simulação por Computador , Eletrodos , Quartzo , Rotação , Análise Espectral , Temperatura , Fatores de Tempo , Vibração
19.
Artigo em Inglês | MEDLINE | ID: mdl-24374556

RESUMO

A large-area diffuse air discharge plasma excited by bipolar nanosecond pulse is generated under a double hexagon needle-array electrode at atmospheric pressure. The images of the diffuse discharge, electric characteristics, and the optical emission spectra emitted from the diffuse air discharge plasma are obtained. Based on the waveforms of pulse voltage and current, the power consumption, and the power density of the diffuse air discharge plasma are investigated under different pulse peak voltages. The electron density and the electron temperature of the diffuse plasma are estimated to be approximately 1.42×10(11) cm(-3) and 4.4 eV, respectively. The optical emission spectra are arranged to determine the rotational and vibrational temperatures by comparing experimental with simulated spectra. Meanwhile, the rotational and vibrational temperatures of the diffuse discharge plasma are also discussed under different pulse peak voltages and pulse repetition rates, respectively. In addition, the diffuse air discharge plasma can form an area of about 70×50 mm(2) on the surface of dielectric layer and can be scaled up to the required size.


Assuntos
Ar , Gases em Plasma/química , Pressão Atmosférica , Eletricidade , Eletrodos , Rotação , Espectrometria de Fluorescência , Temperatura , Fatores de Tempo , Vibração
20.
Zhongguo Zhen Jiu ; 34(2): 105-9, 2014 Feb.
Artigo em Zh | MEDLINE | ID: mdl-24796041

RESUMO

OBJECTIVE: To explore the comprehensive program of integrated Chinese and western medicine in the treatment of cognitive impairment in earthquake brain injury. METHODS: The multi-central randomized controlled trial was adopted. The qualified subjects were randomized into an acupuncture + rehabilitation group (38 cases) and a rehabilitation group (35 cases). In the acupuncture + rehabilitation group, acupuncture, hyperbaric oxygen (HBO) and cognitive rehabilitation training were combined as the comprehensive program of integrated Chinese and western medicine in the treatment. In the rehabilitation group, HBO and cognitive rehabilitation training were adopted. The efficacy and safety were assessed. RESULTS: (1) After treatment of 2 months, the intelligent state, cognitive function and activity of daily life of patients were improved in the both groups (all P < 0.01). (2) After treatment of 2 months, the score of MMSE and the score of activity of daily life were (24.11 +/- 4.08) and (75.45 +/- 13.95) in the acupuncture + rehabilitation group, which were more significant as compared with (17.05 +/- 43.84), (66.06 +/- 12.75) in the rehabilitation group, respectively (both P < 0.01). In 6-month follow-up visit after treatment, the cognitive function and activity of daily life were improved continuously in the acupuncture + rehabilitation group, which was more significant as compared with the rehabilitation group (P < 0.01, P < 0.05). CONCLUSION: The integrated Chinese and western medicine of acupuncture, HBO and cognitive rehabilitation training is safe and effective in the treatment of cognitive impairment in earthquake brain injury. The therapeutic effect is more advantageous as compared with the simple rehabilitation program of western medicine.


Assuntos
Terapia por Acupuntura , Lesões Encefálicas/terapia , Cognição , Atividades Cotidianas , Adolescente , Adulto , Idoso , Lesões Encefálicas/psicologia , Lesões Encefálicas/reabilitação , Terremotos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto Jovem
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