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1.
Wei Sheng Yan Jiu ; 49(5): 738-743, 2020 Sep.
Artigo em Chinês | MEDLINE | ID: mdl-33070816

RESUMO

OBJECTIVE: To understand the status of health literacy and its influencing factors among the residents in Haidian District of Beijing, and to provide references for targeted health education intervention. METHODS: A multi-staged probability proportionate to size sampling(PPS) sampling method was used to collect 7034 residents that aged 15-69 years old in Haidian District in 2018. RESULTS: The standardized rate of health literacy among the residents of Haidian District was 28. 56%. The standardized health literacy rate of basic health knowledge and concept literacy, health lifestyle and behavior literacy, basic health skill were 35. 79%, 30. 90% and 36. 39%, respectively. The standardized health literacy rate of 6 health literacy issues from high to low were safety and first aid(66. 39%), scientific health perspectives(51. 24%), infectious diseases prevention and treatment(39. 78%), health information(30. 25%), chronic disease control and prevention(13. 33%), and basic medical care(11. 23%), respectively. The result of multiple logistic regression showed that aged between 30-39 years old, female, high school education and above, the teacher, medical and government staff, staff of other institutions, staff of other enterprises, other employees and the annual income of the family>45000 RMB were protective factors for health literacy. Aged between 50-69 years old was risk factor for health literacy. CONCLUSION: The level of health literacy in Haidian District was low. Various forms of intervention activities should be carried out to improve the residents' health literacy, especially focused on health lifestyle and behavior literacy, chronic disease control and prevention and basic medical care.


Assuntos
Letramento em Saúde , Adulto , Idoso , Pequim , Cidades , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Pessoa de Meia-Idade , Inquéritos e Questionários
2.
ISA Trans ; 2020 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-33066993

RESUMO

The work deals with composite iterative learning model predictive control (CILMPC) for uncertain batch processes via a two dimensional Fornasini-Marchesini (2D-FM) model. A novel equivalent error system is first presented which is composed of state error and tracking error. Then an iterative learning predictive updating law is constructed by 2D state feedback control and the 'worst' case linear quadratic function is also designed. Besides, the update controller considering the input and output constraint will be optimized using the worst-case objective function along the infinite moving horizon. The solvable conditions that can be optimized online in real time are constructed using linear matrix inequalities (LMIs). The stability of the proposed control scheme can be achieved with the feasibility of the optimization problem. Compared with robust traditional MPC using one-dimensional models, the presented control approach can guarantee more degrees of tuning to achieve faster convergence of tracking error, which is of more significance since uncertainties exist inevitably in industrial batch processes. Finally, an injection molding process and a three-tank are introduced as two cases to demonstrate the feasibility and superiority of the proposed MPC strategy.

3.
Artigo em Inglês | MEDLINE | ID: mdl-33073562

RESUMO

Nanostructuring and metal-support interactions have been explored as effective methods to improve the electrocatalytic activity in heterogeneous catalysis. In this study, we have fabricated ultrasmall Ru nanoparticles (NPs) dispersed on S-doped graphene (denoted as Ru/S-rGO) by a facile "one-pot" procedure. The experimental results indicated that both the S doping and moderate degree of oxidization of GO can induce the formation and high dispersion of the ultrasmall Ru NPs with larger electrochemically active surface areas for exposing more active sites. Metal-support interaction between S-doped graphene and Ru NPs was observed from the X-ray photoelectron spectroscopy and electronic charge-difference studies. It resulted in the decrease in the electron density of Ru, which facilitated electron release from H2O and H-OH bond breakage. The results of density functional theory calculation confirmed that the S-dopants could reduce the energy barrier for breaking the H-OH bond to accelerate water dissociation during the alkaline hydrogen evolution reaction (HER). At a current density 20 mA cm-2, the lowest overpotential of 14 mV, superior to that of Pt/C in alkaline solution, was observed for Ru/S-rGO-24. The observed lowest value of overpotential was because of the ultrasmall size, high dispersion, and metal-support interaction. This work provides a simple and effective method in designing advanced electrocatalysts for the HER in an alkaline electrolyte.

4.
Artigo em Inglês | MEDLINE | ID: mdl-32987372

RESUMO

InSe monolayer, belonging to group III-VI chalcogenide family, has shown promising performance in the realm of spintronic. Nevertheless, the out-of-plane mirror symmetry in InSe monolayer constrains the electrons' degrees of freedom, and this will confine its spin-related applications. Herein, we construct Sb/InSe van der Waals heterostructure to extend the electronic and spintronic properties of InSe. The density functional theory is utilized to verify the tunable electronic properties and Rashba spin splitting (RSS) of Sb/InSe heterostructure. According to the obtained results, the Sb/InSe heterostructure can be considered as a direct band gap semiconductor with typical type-II band alignment, where the electrons and holes are localized in the InSe and Sb layers, respectively. The RSS is recognized at conduction band minimum (CBM) around Γ point in Sb/InSe, which is induced by the spontaneous internal electric field with electric dipole moment of 0.016 e Å from Sb to InSe. The vertical strain, in-plane strain, and external electric field are employed to modulate the strength of RSS. The Rashba coefficient and dipole moment exhibit the similar variation tendency, suggesting the strength of RSS depends on the magnitude of dipole moment. The controllable RSS makes Sb/InSe heterostructure become an appropriate candidate material for spintronic devices.

6.
Phys Chem Chem Phys ; 2020 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-32974632

RESUMO

Mexican-hat-like band dispersion is extremely critical to the realization of hole-doping-induced magnetism in monolayer metal monochalcogenides. However, it is absent from transition-metal dichalcogenides (TMDCs), i.e., WSe2. Herein, using first-principles calculations, we show that Mexican-hat-like band dispersion can be achieved by applying interlayer strain (ε) in the WSe2/SnS2 van der Waals (vdW) heterostructure when ε exceeds 15%. This is because in the strain-induced distorted trigonal prismatic crystal field, at the valence band edge, the W_dz2 orbitals shift upward around the Γ point, while the double-degenerate W_dxy/dx2-y2 orbitals shift downward at the K point, resulting in Mexican-hat-like band dispersion near the Γ point when the energy level of the Γ point surpasses that of the K point. On account of the appearance of the Mexican-hat-like band edge (MHBE), hole-doping in the strained WSe2/SnS2 heterostructure induces magnetization readily from the nonmagnetized phase. Our findings may provide a new strategy for the realization of magnetized TMDC-based vdW heterostructures.

7.
J Burn Care Res ; 2020 Jul 07.
Artigo em Inglês | MEDLINE | ID: mdl-32632451

RESUMO

Explosions always lead to serious public health, social and economic problems. We investigated the epidemiology, outcomes and costs of burn patients caused by explosion accident in Southwest China to explore more effective prevention and treatment strategies. This retrospective study included 497 inpatients with burns during explosion accident admitted to the Institute of Burn Research of Army Medical University from 2002 to 2016. A total of 497 cases (77.78% males) were found, accounting for 2.37% of the total burn patients. The average age was 34.38 ± 15.02 years. The most common etiology was gas explosions (51.51%). Most of the cases were caused by work-related activities. The average TBSA was 31.30 ± 28.32%. The median LOS was 31 days. The LOS was correlated with TBSA, full-thickness burns, older age, number of operations and outcome. The major factors determining the cost were larger TBSA, full-thickness burns, and higher cure rate. The mortality was 6.44%. Larger TBSA and older age were the most important risk factors for the mortality. This study suggested that special attention should be paid to prevent burns during explosion accident in adult males with occupational exposure. In the future, more effective and practical strategies for preventing and treating burns during explosion accident based on related risk factors should be implemented.

8.
J Phys Chem Lett ; : 6785-6790, 2020 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-32701301

RESUMO

Zero thermal expansion (ZTE) materials are highly desired in modern industries where high-precision processing is necessary. However, ZTE materials in pure form are extremely rare. The most widely used are Invar alloys, where the ZTE is intimately associated with spontaneous magnetic ordering, known as the magnetovolume effect (MVE). Despite tremendous studies, there is still no consensus on the microscopic origin of MVE in Invar alloys. Here, we report the discovery of room-temperature isotropic ZTE in a pure-form cobaltite perovskite, A-site disordered La0.5Ba0.5CoO3-x. The temperature window of the anomalous thermal expansion shows large tunability by simply altering the oxygen content, making this material a promising candidate for practical applications. Furthermore, we unveil with compelling experimental evidence that the ZTE originates from an isostructural transition between antiferromagnetic large-volume phase and ferromagnetic small-volume phase, which might shed light on the MVE in Invar alloys.

9.
Medicine (Baltimore) ; 99(29): e20982, 2020 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-32702838

RESUMO

To explore the effectiveness of posterior vertebral column resection for failed thoracolumbar anterior instrumented fusion.Ten patients with anterior fusion with refractory pain, progressive neurological deficits, and kyphosis were recruited. Anterior removal of the implant and posterior vertebral column resection were performed. The mean operating time, intraoperative blood loss, kyphosis angle, visual analog scale pain score, Oswestry disability index, bone fusion time, and complications were assessed in a minimum 18-month follow-up.The mean operating time was 323.5 ±â€Š63.6 minutes, with a mean blood loss of 1189 ±â€Š253.4 mL. The mean preoperative kyphosis angle of 54.6°â€Š±â€Š8.0° immediately decreased to 4.8°â€Š±â€Š1.5° after revision surgery and eventually to 6.8°â€Š±â€Š1.3° at the final follow-up. The mean bone fusion time was 6.8 ±â€Š1.2 months. All patients had satisfactory sagittal and coronal balance with no implant failure at the last follow-up. The average visual analog scale score was 6.2 ±â€Š1.0 preoperatively, and it decreased to 2.6 ±â€Š0.5 at the last follow-up. No patient suffered from neurological deterioration. The Oswestry disability index decreased from 39.8% ±â€Š4.6% preoperatively to 24.5% ±â€Š4.7% at the final follow-up. Complications occurred in 4 patients: 3 experienced tearing of the lung, and 1 had a superficial wound infection.Anterior removal of the implant and posterior vertebral column resection constituted a safe and effective revision surgery for patients with prior anterior fusion with rigid postsurgical deformities.


Assuntos
Cifose/cirurgia , Vértebras Lombares/cirurgia , Procedimentos Ortopédicos , Fusão Vertebral/efeitos adversos , Vértebras Torácicas/cirurgia , Adulto , Perda Sanguínea Cirúrgica , Avaliação da Deficiência , Feminino , Humanos , Cifose/etiologia , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Complicações Pós-Operatórias , Reoperação , Estudos Retrospectivos , Falha de Tratamento , Escala Visual Analógica , Adulto Jovem
10.
Int Orthop ; 44(9): 1773-1783, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32494843

RESUMO

INTRODUCTION: This study aims to describe a novel minimal invasive early-onset scoliosis (EOS) growth rod concept, the Cody Bünger (CB) Concept, which combines concave interval distraction and contralateral-guided growth with apical control and to investigate the 3D deformity correction, the spinal growth, and the pulmonary development. METHOD: A series of 38 children with progressive EOS and growth potential, receiving a highly specialized surgical treatment, including primary and conversion cases. Mean age was 10.2 years (4.4-15.8) with a mean follow-up of 5.6 years, and they underwent 168/184 open/magnetic lengthening procedures. Outcomes were as follows: scoliosis, kyphosis, and lordosis angles; apical rotation; spinal length; apical translation; coronal and sagittal vertical alignment; complications; and pulmonary function in a subgroup. RESULTS: Scoliosis improved from mean 76° (46-129) to 35° (8-74) post-op and was 42° (13-83) at end of treatment. Apical rotation was reduced by 30% but was partially lost during treatment. Thoracic kyphosis initially decreased by mean 15° and was partially lost during treatment. Lordosis was largely unaltered during treatment. Mean T1-S1 height increased from 30.7 cm (22.7-39.2) to 34.6 cm (27.8-45.1) postop and further increased to 38.5 cm (30.1-48.1) during treatment. This corresponded to a T1-S1 growth rate of 12 mm/year, and positive growth rates were found in all height parameters evaluated. Frontal balance and apical translation improved, whereas sagittal balance was unaltered. Complications occurred in 22/38 patients, and 11/38 had an unintended reoperation. Pulmonary function (FVC and FEV) increased but the relative lung function was unchanged. CONCLUSION: The new growth rod concept provided 3D correction and spinal growth at complication rates comparable with other growth-friendly techniques for EOS, while pulmonary function was preserved. Single magnetic rod distraction was incorporated successfully, replacing surgical elongations.

11.
Front Mol Biosci ; 7: 59, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32411720

RESUMO

Organ fibrosis is characterized by excessive fibroblast, and extracellular matrix and the molecular basis are not fully elucidated. Recent studies have proven that P311, an 8-kDa conserved protein, could promote various organ fibrosis, such as skin, kidney, liver, and lung, partially through upregulating transforming growth factor ß1 (TGF-ß1) translation. However, the upstream regulators and mechanism of P311 gene regulation remain unclear, although we previously found that cytokines, hypoxia, and TGF-ß1 could upregulate P311 transcription. Here, we aimed to elucidate the molecular mechanism of TGF-ß1-induced P311 transcriptional regulation, focusing on mesenchyme homeobox 1 (Meox1). In this article, we identified the core promoter of P311 through bioinformatics analysis and luciferase reporter assays. Moreover, we demonstrated that Meox1, induced by TGF-ß1, could bind to the promoter of P311 and promote its transcriptional activity. Furthermore, the effect of Meox1 on P311 transcriptional expression contributed to altered migration and proliferation in human dermal fibroblast cells. In conclusion, we identified Meox1 as a novel transcription factor of P311 gene, providing a new clue of the pathogenesis in fibrosis.

12.
Artigo em Inglês | MEDLINE | ID: mdl-32374583

RESUMO

In this work, we prepared flexible carbon-fiber/semimetal Bi nanosheet arrays from solvothermal-synthesized carbon-fiber/Bi2O2CO3 nanosheet arrays via a reductive calcination process. The flexible carbon-fiber/semimetal Bi nanosheet arrays can function as photocatalysts and photoelectrocatalysts for 2,4-dinitorphenol oxidation. Compared with carbon-fiber/Bi2O2CO3 nanosheet arrays, the newly designed flexible carbon-fiber/semimetal Bi nanosheet arrays show enhanced ultraviolet-visible (UV-vis) light absorption efficiency and photocurrent, photocatalytic, and photoelectrocatalytic activities. Photocatalytic analyses indicate that the surface plasmon resonance (SPR) of semimetal Bi occurs under solar-simulated light irradiation during the photocatalytic process. The carbon-fiber traps the hot electrons exerted from the SPR of semimetal Bi and creates holes in the semimetal Bi nanosheets, which boosts the photocatalytic activity of the carbon fiber through plasmonic sensitization. Both photocatalytic experiments and density functional theory (DFT) calculations indicate that the electrons transferred to the carbon fiber and the holes created in semimetal Bi contribute to the formation of •O2- and •OH, respectively. The synergistic effect between electrocatalysis and photocatalysis under the solar-simulated light results in almost complete degradation of 2,4-dinitorphenol during the photoelectrocatalytic process. This work realizes a non-noble-metal plasmonic catalyst and provides a new avenue for the commercialization of photocatalysis and photoelectrocatalysis using the separable and recyclable carbon-fiber/semimetal Bi nanosheet arrays in the environment-related field.

13.
Burns ; 46(4): 756-761, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32381449

RESUMO

COVID-19 pandemic is sweeping the globe. Any outpatient or new inpatient especial in burn department during the pandemic should be as a potential infectious source of COVID-19. It is very important to manage the patients and wards carefully and correctly to prevent epidemic of the virus in burn centers. This paper provides some strategies regarding management of burn ward during the epidemic of COVID-19 or other respiratory infectious diseases.


Assuntos
Queimaduras/terapia , Infecções por Coronavirus , Assistência à Saúde/organização & administração , Controle de Infecções/métodos , Pandemias , Pneumonia Viral , Humanos
14.
J Phys Chem A ; 2020 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-32390419

RESUMO

Identification of the geometric structures of silver clusters is of great importance in future nanotechnologies due to their superior properties. Nevertheless, some ground-state structures are still in academic debate, partly because the experiments and theoretical calculations are not performed at the same temperatures. For example, silver clusters usually have compact configurations. However, a combined experimental and theoretical study proposed that the most stable structure of Ag13- had a two-coordinated atom. By using the CALYPSO approach for the global minima search followed by first-principles calculations, we discovered that a more compact trilayer Ag13- cluster was the ground state, in accordance with another three works published recently. In addition, its O2 adsorption structure is also energetically favored. By tracing characteristic bond changes in ab initio molecular dynamics (MD) simulations, we confirmed that, compared with other isomers, this trilayer structure and its O2 adsorption structure also had the highest thermal stability. This work emphasized the thermal stability concept in theoretical calculations, which may be a necessary supplement to explain the experimental observations on cluster science.

15.
Spine Deform ; 8(4): 751-761, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32232747

RESUMO

STUDY DESIGN: Two-center retrospective cohort study. OBJECTIVE: The aim of this study is to investigate the clinical effectiveness and safety of the MCGR hybrid in terms of spinal growth, 3D correction, balance, and complications. The magnetic-controlled growing-rod (MCGR) growth instrumentation method has gained popularity for early onset scoliosis (EOS) treatment in the past years due to the non-invasiveness of the subsequent interval elongation procedures. To improve 3D correction and reduce the costs, we combined a single concave MCGR with a sliding rod on the convex side to control the apex. METHODS: A retrospective cohort study of 18 EOS children with an average 3-year follow-up (range 2.0-3.7) from two European spine centers treated with the single MCGR hybrid concept; 14 primary and 4 conversion cases. The primary and conversion cases were both evaluated preoperatively, postoperatively, 1 year, 2 years, and last follow-up. RESULTS: Mean age was 9.9 (SD ± 2.9 years). The average frontal Cobb angle was reduced from mean 65° to 30° postoperatively, and had increased to 37° at latest follow-up. Rotation of the apical vertebra improved from mean 27° to 20° postoperatively which was partially lost to 23°. Kyphosis and lordosis both increased by an average of 5° during the time of follow-up. Spinal balance was improved. The post-implantation T1-S1 spine growth rate averaged 10 mm/year at last follow-up. There were 13 implant-related complications in 6 out of 18 patients. No screw pull-outs and nor surgical site infections were registered. CONCLUSIONS: This is the first medium-term results of a single MCGR hybrid construct. Maintenance of correction and growth are reasonable, and the complication rate is relatively low as compared to bilateral MCGR application. LEVEL OF EVIDENCE: III.


Assuntos
Fixadores Internos , Escoliose/cirurgia , Fusão Vertebral/instrumentação , Vértebras Torácicas/cirurgia , Adolescente , Fatores Etários , Idade de Início , Criança , Estudos de Coortes , Feminino , Seguimentos , Humanos , Masculino , Radiografia , Estudos Retrospectivos , Rotação , Escoliose/diagnóstico por imagem , Escoliose/patologia , Fusão Vertebral/métodos , Vértebras Torácicas/patologia , Vértebras Torácicas/fisiopatologia , Fatores de Tempo , Resultado do Tratamento
16.
J Nanobiotechnology ; 18(1): 59, 2020 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-32293461

RESUMO

BACKGROUND: Infectious diseases caused by multidrug-resistant (MDR) bacteria, especially MDR Gram-negative strains, have become a global public health challenge. Multifunctional nanomaterials for controlling MDR bacterial infections via eradication of planktonic bacteria and their biofilms are of great interest. RESULTS: In this study, we developed a multifunctional platform (TG-NO-B) with single NIR laser-triggered PTT and NO release for synergistic therapy against MDR Gram-negative bacteria and their biofilms. When located at the infected sites, TG-NO-B was able to selectively bind to the surfaces of Gram-negative bacterial cells and their biofilm matrix through covalent coupling between the BA groups of TG-NO-B and the bacterial LPS units, which could greatly improve the antibacterial efficiency, and reduce side damages to ambient normal tissues. Upon single NIR laser irradiation, TG-NO-B could generate hyperthermia and simultaneously release NO, which would synergistically disrupt bacterial cell membrane, further cause leakage and damage of intracellular components, and finally induce bacteria death. On one hand, the combination of NO and PTT could largely improve the antibacterial efficiency. On the other hand, the bacterial cell membrane damage could improve the permeability and sensitivity to heat, decrease the photothermal temperature and avoid damages caused by high temperature. Moreover, TG-NO-B could be effectively utilized for synergistic therapy against the in vivo infections of MDR Gram-negative bacteria and their biofilms and accelerate wound healing as well as exhibit excellent biocompatibility both in vitro and in vivo. CONCLUSIONS: Our study demonstrates that TG-NO-B can be considered as a promising alternative for treating infections caused by MDR Gram-negative bacteria and their biofilms.


Assuntos
Biofilmes/efeitos da radiação , Farmacorresistência Bacteriana Múltipla/efeitos da radiação , Bactérias Gram-Negativas/fisiologia , Raios Infravermelhos , Óxidos de Nitrogênio/metabolismo , Animais , Materiais Biocompatíveis/química , Materiais Biocompatíveis/metabolismo , Materiais Biocompatíveis/farmacologia , Biofilmes/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Farmacorresistência Bacteriana Múltipla/efeitos dos fármacos , Infecções por Bactérias Gram-Negativas/patologia , Infecções por Bactérias Gram-Negativas/terapia , Infecções por Bactérias Gram-Negativas/veterinária , Grafite/química , Hemólise/efeitos dos fármacos , Camundongos , Camundongos Endogâmicos BALB C , Testes de Sensibilidade Microbiana , Células NIH 3T3 , Nanoestruturas/química , Nanoestruturas/toxicidade , Fototerapia , Temperatura , Distribuição Tecidual , Cicatrização/efeitos dos fármacos , Cicatrização/efeitos da radiação
17.
Phys Chem Chem Phys ; 2020 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-32301938

RESUMO

Herein, the Rashba spin orbit coupling (SOC) of polar group III-VI chalcogenide XABY (A, B = Ga, In; X ≠ Y = S, Se, Te) monolayers is investigated based on density functional theory. The different electronegativities of X and Y atoms lead to an asymmetrical internal electric field in the XABY monolayer; this implies that the internal electric field between A and X is not equal to that between B and Y. Mirror symmetry breaking in the XABY monolayer induces a remarkable Rashba spin splitting (RSS) at the conduction band minimum (CBM). Moreover, it is demonstrated that an external electric field and an in-plane biaxial strain can affect the internal electric field by varying the charge distribution, and this further manipulates the RSS. Under a positive external electric field and tensile strain, the RSS at the CBM exhibits a near-linear increasing behavior, whereas under a negative external electric field and compressive strain, the RSS displays a monotonous decreasing pattern. In addition, we explored the influence of interlayer coupling and substrate on the RSS. The stacking pattern of bilayer structures has a significant impact on the RSS. The investigation of SInGaSe on the Si(111) substrate suggests that the Rashba band is situated inside the large band gap of the substrate. Overall, our investigations suggest that the polar group III-VI chalcogenides are promising candidates for future spintronic applications.

18.
Burns ; 46(4): 749-755, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-32312568

RESUMO

COVID-19 is spreading almost all over the world at present, which is caused by the 2019 novel coronavirus (2019-nCoV). It was an epidemic firstly in Hubei province of China. The Chinese government has formally set COVID-19 in the statutory notification and control system for infectious diseases according to the Law of the People's Republic of China on the Prevention and Treatment of Infectious Diseases. China currently is still struggling to respond to COVID-19 though intensive actions with progress made. The Burn Department of our hospital is one of sections with the highest infectious risk of COVID-19. Based on our own experience and the guidelines on the diagnosis and treatment of COVID-19 (7th Version) with other regulations and literature, we describe our experience with suggestions for medical practices for burn units during the COVID-19 outbreak. We hope these experiences and suggestions benefit our international colleagues during the pandemic of the COVID-19.


Assuntos
Unidades de Queimados/organização & administração , Queimaduras/terapia , Infecções por Coronavirus , Controle de Infecções/organização & administração , Pandemias , Pneumonia Viral , Assistência à Saúde/organização & administração , Humanos
19.
Spine Deform ; 8(4): 763-770, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32170659

RESUMO

STUDY DESIGN: Descriptive case series. OBJECTIVE: The aim of the study is to investigate the pain associated with magnetically controlled growing rod (MCGR) lengthening procedures. MCGRs have gained popularity because they offer non-surgical lengthening procedures in early-onset scoliosis (EOS) instead of semi-annual open surgery elongations with traditional growing rods. Many aspects of MCGR treatment have been investigated, but pain in conjunction with distraction is only sparsely described in the literature. METHODS: Pain intensity was assessed in 25 EOS patients before, during and after MCGR lengthening procedures in an outpatient setup. They underwent at least two (range 2-16) lengthening procedures prior to this study. The pain intensity was estimated using patient-reported Faces Pain Scale (FPS-R), caregiver-reported pain numeric rating scale (NRS), and NRS and revised Face, Legs, Activity, Cry, Consolability scale (r-FLACC) by two medically trained observers. The inter-rater reliability and correlation between instruments were analyzed. RESULTS: 23 of 25 EOS patients (8- to 16-year old) with mixed etiology were able to self-report pain. The average pain intensity was mild: median 1 (range 0-6) on all four instruments on a 0-to-10 scale. Afterward, 22/25 patients (88%) were completely pain free and the remaining 3 patients had a pain score of 1. MCGR stalling (i.e. clunking) was encountered in 14/25 (56%) of the patients without impact on the pain intensity. CONCLUSIONS: The average maximum pain intensities during the lengthening procedures were mild and pain ceased within few minutes. The inter-rater reliability was good to excellent for NRS and r-FLACC, and there were high correlations between all the four pain instruments, indicating high criterion validity. LEVEL OF EVIDENCE: Level IV, case series.


Assuntos
Face/fisiologia , Fixadores Internos/efeitos adversos , Osteogênese por Distração/efeitos adversos , Osteogênese por Distração/métodos , Medição da Dor/métodos , Dor/etiologia , Escoliose/cirurgia , Adolescente , Idade de Início , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Dor/prevenção & controle
20.
J Phys Condens Matter ; 32(17): 175503, 2020 Jan 14.
Artigo em Inglês | MEDLINE | ID: mdl-31935706

RESUMO

Spin splitting of the nonmagnetic two dimensional (2D) layered NIIIXVI (N = Ga, In; X = S, Se, Te) monolayer is investigated based on the density functional theory. Due to the mirror symmetry, there is no Rashba spin splitting (RSS) in the freestanding NX plane. It is found that applying the external electric field perpendicular to the NX plane can result in sizable RSS around the Γ point due to the mirror symmetry breaking. The induced RSS is mainly influenced by the anions X and gradually strengthens with the increase of external electric field. The considerable RSS is observed in NTe systems. Moreover, the influence of in-plane biaxial strain on RSS is explored, and the tensile strain can enhance the RSS, especially for those bands around the Fermi level. Our theoretical investigation provides a deep insight in spin splitting behaviors in NX monolayers and agrees well with the experimental report.

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