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In the realm of large-area trauma flap transplantation, averting ischaemic necrosis emerges as a pivotal concern. Several key mechanisms, including the promotion of angiogenesis, the inhibition of oxidative stress, the suppression of cell death, and the mitigation of inflammation, are crucial for enhancing skin flap survival. Apoptotic bodies (ABs), arising from cell apoptosis, have recently emerged as significant contributors to these functions. This study engineered three-dimensional (3D)-ABs using tissue-like mouse adipose-derived stem cells (mADSCs) cultured in a 3D environment to compare their superior biological effects against 2D-ABs in bolstering skin flap survival. The findings reveal that 3D-ABs (85.74 ± 4.51) % outperform 2D-ABs (76.48 ± 5.04) % in enhancing the survival rate of ischaemic skin flaps (60.45 ± 8.95) % (all p < 0.05). Mechanistically, they stimulated angiogenesis, mitigated oxidative stress, suppressed apoptosis, and facilitated the transition of macrophages from M1 to M2 polarization (all p < 0.05). A comparative analysis of microRNA (miRNA) profiles in 3D- and 2D-ABs identified several specific miRNAs (miR-423-5p-up, miR30b-5p-down, etc.) with pertinent roles. In summary, ABs derived from mADSCs cultured in a 3D spheroid-like arrangement exhibit heightened biological activity compared to those from 2D-cultured mADSCs and are more effective in promoting ischaemic skin flap survival. These effects are attributed to their influence on specific miRNAs.
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Tecido Adiposo , Apoptose , Técnicas de Cultura de Células , Isquemia , Células-Tronco , Células Cultivadas , Humanos , Animais , Camundongos , Células-Tronco/citologia , Células-Tronco/metabolismo , Masculino , Camundongos Endogâmicos C57BL , Técnicas de Cultura de Células/métodos , Separação Celular/métodos , Tecido Adiposo/citologia , Tecido Adiposo/metabolismo , Isquemia/genética , Isquemia/patologia , Hipóxia Celular , Sobrevivência Celular , MicroRNAs/genética , Estresse Oxidativo , Neovascularização Patológica , Perfilação da Expressão GênicaRESUMO
OBJECTIVE: This study aims to explore the 5Ts teach-back(5Ts) to improve oral nutritional supplements (ONS) compliance of discharged patients after gastric cancer surgery. SETTING AND METHODS: Patients were recruited from the Bethune First Hospital of Jilin University. The patients were randomly assigned to 5Ts (n = 54) and routine health education (n = 54). Weekly ONS compliance was collected by "weekly ONS diary." ONS knowledge, health literacy, and health education satisfaction were collected at baseline and 5 weeks after discharge. Chi-square test, Mann-Whitney U test, and T test were used for data analysis. RESULTS: At the end of the intervention, there were 41 and 40 patients in intervention and control group. 5Ts significantly improve ONS compliance, ONS knowledge level (P = 0.000), health literacy level (P = 0.011), and health education satisfaction (P = 0.009) of patients. At the end of follow-up, there were 30 and 27 patients in two groups, and no significant difference in ONS compliance (P = 0.728). CONCLUSION: The 5Ts can significantly improve patients' ONS compliance and the effect of health education. TRIAL REGISTRATION NUMBER: This prospective trial was registered in the Chinese Clinical Trial Registry at ChiCTR2000040986 ( http://www.chictr.org.cn ). PATIENT OR PUBLIC CONTRIBUTION: Jia Wang and Haiyan Hu contributed to the performance of the study, analysis and interpretation the data, and drafted the manuscript; Jianan Sun and Qing Zhang contributed to the supervision of the study and interpreted the data; Zhiming Chen contributed to the analysis and interpretation the data; Qiuchen Wang contributed to the performance of the study and revised the manuscript; Mingyue Zhu contributed to interpretation the data; Jiannan Yao contributed to revise the manuscript; Hua Yuan and Xiuying Zhang contributed to the conception of the study, performed the study, interpreted the data, and significantly revised the manuscript. All authors screened the final version of the manuscript.
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Desnutrição , Neoplasias Gástricas , Humanos , Alta do Paciente , Neoplasias Gástricas/cirurgia , Estudos Prospectivos , Assistência ao Convalescente , Educação em Saúde , Suplementos NutricionaisRESUMO
PURPOSES: Patients after gastrectomy have poor compliance with oral nutritional supplement (ONS) therapy. Incorporating patient preferences into treatment decisions allows possible product improvements or treatment focus adjustments. The purpose of this research was to investigate the preferences for ONS therapy among postoperative patients with gastric cancer, and to provide person-centered oral nutrition management strategies. METHODS: A discrete choice experiment was designed and implemented within a Chinese cancer population. The survey was administered via paper-based questionnaires during face-to-face interviews with assistance from health professionals. A mixed logit model was used to estimate respondents' preferences for different levels of nutrition therapy attributes. RESULTS: One hundred ninety respondents valued "Adverse reactions-almost none" (ß 3.43 [SE, 0.28]) the most, followed by "Flavor-good taste" (ß 0.68 [SE, 0.13]) and "Follow-up frequency-once every 2 weeks" (ß 0.52 [SE, 0.13]), and were willing to pay more for these attribute levels. Respondents would be 93.73% more likely to accept a nutrition therapy program if there were almost no adverse reactions compared to the frequent adverse reactions. CONCLUSIONS: Health professionals should pay attention to the management and prevention of adverse reactions when prescribing nutritional products, and provide diversified ONS products when necessary to meet patient preferences. When formulating intervention strategies, health professionals should also consider the different characteristics of patients, acknowledge the importance of the role of nurse specialists in a novel model of multidisciplinary nutritional care, standardize ONS information, follow up regularly, and encourage patients' families to participate in daily nutrition care.
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Comportamento de Escolha , Neoplasias Gástricas , Administração Oral , Humanos , Preferência do Paciente , Neoplasias Gástricas/cirurgia , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Gibberellic acid (GA3 ), a plant-growth regulator, is often used to obtain enlarged table grape berries and induce seedlessness in them. However, the effects of GA3 on rachis elongation and bunch compactness have seldom been reported in wine-grape production. We assessed the effects of GA3 spraying on wine-grape inflorescences and bunches and their practical implications for viticulture in the Jiaodong Peninsula, China. RESULTS: Various GA3 concentrations were sprayed on field-grown Vitis vinifera L. 'Cabernet Franc' (CF) and 'Cabernet Sauvignon' (CS) grapevines before anthesis in the Jiaodong Peninsula, China, in 2015 and 2016. Inflorescence length during berry development was measured, and flavonoids and aroma compounds in the fruit were detected by high-performance liquid chromatography - mass spectrometry (HPLC-MS) and gas chromatography - mass spectrometry (GC-MS), respectively. For both cultivars, 50 and 100 mg L-1 GA3 caused significant elongation of the rachis, whereas there was no significant effect on inflorescence growth and berry seed number. Anthocyanin, flavonol, and flavan-3-ol levels in mature berries were not significantly influenced by GA3 spraying, whereas C13 -norisoprenoids were modified. CONCLUSION: The application of 50-100 mg L-1 GA3 prior to grapevine anthesis caused elongation of inflorescences and bunches, and eased cluster compactness in CF and CS, and no negative effects were observed on the yield and seed numbers. The concentration and composition of flavonoids and most aroma compounds were not influenced, except that the norisoprenoids were increased by 50 mg L-1 GA3 applications. © 2020 Society of Chemical Industry.
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Aromatizantes/química , Frutas/química , Giberelinas/farmacologia , Reguladores de Crescimento de Plantas/farmacologia , Vitis/efeitos dos fármacos , Vitis/crescimento & desenvolvimento , China , Produção Agrícola , Aromatizantes/metabolismo , Frutas/efeitos dos fármacos , Frutas/crescimento & desenvolvimento , Frutas/metabolismo , Cromatografia Gasosa-Espectrometria de Massas , Norisoprenoides/química , Norisoprenoides/metabolismo , Odorantes/análise , Vitis/química , Vitis/metabolismoRESUMO
Parkinson's disease (PD), the second most common neurodegenerative disorder, is characterized by loss of dopaminergic neurons in the substantia nigra, as well as the abnormal accumulation of misfolded α-synuclein. Clinically, PD is featured by typical motor symptoms and some non-motor symptoms. Up to now, although considerable progress has been made in understanding the pathogenesis of PD, there is still no effective therapeutic treatment for the disease. Thus, exploring new therapeutic strategies has been a topic that needs to be addressed urgently. Noteworthy, with the proposal of the microbiota-gut-brain axis theory, antimicrobial drugs have received significant attention due to their effects on regulating the intestinal microbiota. Nowadays, there is growing evidence showing that some antimicrobial drugs may be promising drugs for the treatment of PD. Data from pre-clinical and clinical studies have shown that some antimicrobial drugs may play neuroprotective roles in PD by modulating multiple biochemical and molecular pathways, including reducing α-synuclein aggregation, inhibiting neuroinflammation, regulating mitochondrial structure and function, as well as suppressing oxidative stress. In this paper, we summarized the effects of some antimicrobial drugs on PD treatment from recent pre-clinical and clinical studies. Then, we further discussed the potential of a few antimicrobial drugs for treating PD based on molecular docking and molecular dynamics simulation. Importantly, we highlighted the potential of clorobiocin as the therapeutic strategy for PD owing to its ability to inhibit α-synuclein aggregation. These results will help us to better understand the potential of antimicrobial drugs in treating PD and how antimicrobial drugs may alleviate or reverse the pathological symptoms of PD.
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Anti-Infecciosos , Doença de Parkinson , Doença de Parkinson/tratamento farmacológico , Humanos , Anti-Infecciosos/uso terapêutico , Anti-Infecciosos/farmacologia , Animais , Fármacos Neuroprotetores/uso terapêutico , Fármacos Neuroprotetores/farmacologia , alfa-Sinucleína/metabolismo , alfa-Sinucleína/efeitos dos fármacos , Microbioma Gastrointestinal/efeitos dos fármacos , Antiparkinsonianos/uso terapêutico , Antiparkinsonianos/farmacologiaRESUMO
Alzheimer's disease (AD) is the most prevalent neurodegenerative disease that is characterized by memory loss and cognitive impairment. Evidence shows that depression is a common co-occurrence in AD patients, and major depressive disorder (MDD) is considered a risk factor for AD. The crosstalk between the biological procedures related to the two disorders makes it very difficult to treat the comorbid conditions caused by them. Considering the common pathophysiological mechanisms underlying AD and MDD, antidepressant drugs may have beneficial therapeutic effects against their concurrence. In this study, we aimed to explore the potential drug candidates for the prevention and treatment of the comorbidity of AD and MDD. First, we screened the potential drugs for treating MDD by evaluating the distances of drug targets to MDD-related genes on the human protein-protein interaction network (PPIN) via a network-based algorithm. Then, the drugs were further screened to identify those that may be effective for AD treatment by analyzing their affinities with tau protein and Aß42 peptide via molecular docking. Furthermore, the most stable binding modes were identified via molecular dynamics simulations, and the regulatory effects of drug candidates on genes involved in the pathogenesis of AD and MDD were analyzed. A total of 506 MDD-related genes were retrieved, and 831 drug candidates for MDD treatment were screened via the network-based approach. The results from molecular docking and molecular dynamics simulations indicated dihydroergotamine had the lowest binding affinity with tau protein and bromocriptine could form the most stable binding mode with Aß42 peptide. Further analyses found that both dihydroergotamine and bromocriptine could regulate the expression of genes involved in the pathogenesis of AD and/or MDD in the brain. The exact mechanisms of the two drugs in treating AD and MDD, as well as their comorbidity, are still unclear, and further exploration is needed to evaluate their roles and mechanisms, both in vitro and in vivo. This study revealed that dihydroergotamine and bromocriptine may be the potential drug candidates for the treatment of the comorbidity of AD and MDD, and the therapeutic effects may be achieved by inhibiting the accumulation and aggregation of Aß42 and tau protein and regulating the expression of disease-related genes in the brain.
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AIM: This study aims to develop and validate a clinical nutrition risk screening tool to predict nutrition risk in home for the patients with gastric cancer after surgery at home so that high-risk patients can be targeted for preventive nutrition care. DESIGN: The development of self-screening tool for nutrition risk in patients with gastric cancer after gastrectomy (SNRSGC) through literature review, expert panel ratings and cognitive interview; the validation of SNRSGC is evaluated through prospective research on participants. METHODS: This research is divided into four parts: Step 1, Identification of a potential referred nutritional risk screening; Step 2, Item generation and scoring are selected through literature review methods to screen sensitive indicators which can reflect the nutritional characteristics of patients after gastric cancer surgery, establish the frame and update according to the latest guidelines; Step 3, Item reduction is determined by the rating of SNRSGC items by an expert panel and cognitive interview; Step 4, During the validation stage, we conducted research design based on the Consensus-based Standards for the selection of health Measurement Instruments checklist to evaluate the validity, reliability, interpretability and acceptability of SNRSGC. RESULTS: SNRSGC is the first screening tool specifically to predict nutrition risk for stay-at-home postoperative patients with gastric cancer, which can help patients at home detect nutritional risks at home in time and guide patients to seek medical treatment as soon as possible to improve their nutritional status.
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Estado Nutricional , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/cirurgia , Neoplasias Gástricas/etiologia , Estudos Prospectivos , Reprodutibilidade dos Testes , Detecção Precoce de Câncer , Gastrectomia/efeitos adversosRESUMO
After spinal cord injury (SCI), significant alterations in the tissue microenvironment lead to mitochondrial dysfunction, inducing apoptosis and inhibiting the remodeling of neural circuits, thereby impeding recovery. Although previous studies have demonstrated a marked decrease in pH at the injury site, creating an acidic microenvironment, the impact of improving this acidic microenvironment on SCI recovery has not been investigated. This study prepared a lysine@hollow mesoporous silica nanoparticle/gelatin methacrylate (GelMA) (L@H/G) composite hydrogel. The L@H/G composite hydrogel was demonstrated to release lysine and efficiently improve the acidic microenvironment slowly. Significantly, the composite hydrogel reduced cell apoptosis, promoted nerve regeneration, inhibited glial scar formation, and ultimately enhanced motor function recovery in mice with SCI. Mechanistically, the L@H/G hydrogel improved the mitochondrial tricarboxylic acid (TCA) cycle and fatty acid metabolism, restoring energy supply and facilitating mitochondrial function recovery. To the best of our knowledge, this is the first report confirming that improving the acidic microenvironment could promote SCI repair, providing a potential therapeutic strategy for SCI.
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Lisina , Mitocôndrias , Nanopartículas , Traumatismos da Medula Espinal , Animais , Traumatismos da Medula Espinal/tratamento farmacológico , Traumatismos da Medula Espinal/metabolismo , Traumatismos da Medula Espinal/patologia , Mitocôndrias/metabolismo , Mitocôndrias/efeitos dos fármacos , Nanopartículas/química , Nanopartículas/uso terapêutico , Lisina/química , Lisina/farmacologia , Lisina/uso terapêutico , Camundongos , Hidrogéis/química , Hidrogéis/farmacologia , Hidrogéis/uso terapêutico , Dióxido de Silício/química , Recuperação de Função Fisiológica/efeitos dos fármacos , Gelatina/química , Apoptose/efeitos dos fármacos , Concentração de Íons de Hidrogênio , Metacrilatos/química , Metacrilatos/farmacologia , Metacrilatos/uso terapêutico , Regeneração Nervosa/efeitos dos fármacos , FemininoRESUMO
BACKGROUND: The prevalences of Alzheimer's disease (AD) and type 2 diabetes (T2D) continuously increase with the aging of world population. Clinical and epidemiological studies indicate that T2D is an important risk factor for AD. However, the mechanisms underlying the linkage of the two disorders are still not fully elucidated. The aim of this study is to explore the molecular mechanisms of their comorbidity and potential drug targets for AD treatment. METHODS: We first compiled comprehensive lists of genes associated with AD and T2D, respectively. Then, we investigated the signatures of the shared genes and screened for interactions between the hub genes. Subsequently, we used Autodock Vina to perform molecular docking to predict new drug candidates. Lastly, structure and dynamics of docking results were examined by molecular dynamics simulation to verify drug reliability. RESULTS: We obtained 917 AD-associated genes, 631 T2D-associated genes and 175 shared genes between the two disorders for subsequent analyses. Functional analysis revealed that metabolic process, lipid and atherosclerosis, AMPK signaling pathway, insulin resistance, chemokines and cytokines were enriched in the shared genes. In addition, 50 central hub genes were identified, including IL6, TNF, INS, IL1B, AKT1, VEGFA, IL10, TP53, PTGS2, TLR4, and others. Finally, we predicted new drug candidates (verdoheme and stannsoporfin) that could be potentially used for AD treatment. CONCLUSIONS: Our study confirmed that there are important shared genes and pathways between AD and T2D, which may provide clues to reveal the molecular mechanism underlying the pathophysiology of the two diseases and help us to discover novel drug candidates for the treatment of AD. The results may also provide clues into identification of new targets and strategies for prevention and therapy of T2D that predisposes to AD.
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Doença de Alzheimer , Diabetes Mellitus Tipo 2 , Humanos , Doença de Alzheimer/tratamento farmacológico , Doença de Alzheimer/genética , Doença de Alzheimer/metabolismo , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/genética , Reposicionamento de Medicamentos , Simulação de Acoplamento Molecular , Reprodutibilidade dos TestesRESUMO
This study aims to synthesize the barriers and facilitators of oral nutritional supplement adherence in people with cancer and assess levels of adherence. Databases including Embase, PubMed, Web of Science, Cochrane Library, Chinese National Knowledge Infrastructure, Wanfang Database, and Chinese Scientific Journal Database, were used to search articles before January 4, 2021. Eighteen studies with 1,267 participants met the inclusion criteria. All studies reported rates of adherence, ranging from 6.0% to 96.9%. Gastrointestinal intolerances and disliked tastes were considered common barriers to cancer patients' adherence, whereas the ONS management strategy was considered the most crucial facilitator of adherence. Health professionals can improve adherence through regular monitoring and guidance and incentive strategies, and paying attention to the management and prevention of adverse reactions when prescribing nutritional products.
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Neoplasias , Humanos , Neoplasias/tratamento farmacológico , Cooperação do Paciente , Pessoal de SaúdeRESUMO
AIM: To evaluate a teaching experience in evidence-based nursing learning through case-based learning (CBL) and flipped learning (FL). DESIGN: Embedded mixed methods study. METHODS: In the first phase, a questionnaire on utility, satisfaction and perceived competency development is used to collect quantitative data, and the open question instrument is used to collect qualitative data. After the first phase, an in-depth semi-structured interview is used. RESULTS: Five themes are identified: the enhancement of learning content, knowledge integration and transfer, the development of teamwork competency, the didactic support of FL and the difficulties and challenges faced by students. Regarding utility, 'combine theory and practice' and 'select the best evidence from what is found in the search' have the highest values. The most developed skills are communication and critical thinking ability. Finally, most participants are satisfied. CONCLUSIONS: The combination of CBL and FL is an innovative strategy for learning evidence-based nursing courses. No Patient or Public Contribution.
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Estudantes de Enfermagem , Humanos , Enfermagem Baseada em Evidências , Aprendizagem , Satisfação Pessoal , Inquéritos e QuestionáriosRESUMO
AIM: This study aimed to evaluate the effect of abdominal massage (AM) on feeding intolerance (FI) in patients receiving enteral nutrition (EN). DESIGN: A systematic review and meta-analysis. METHODS: We searched seven electronic databases to September 2021. STATA and RevMan were used to analyse the data. RESULTS: Eleven studies were included. The results revealed that AM could significantly reduce gastric residual volume and abdominal circumference difference, and reduce the incidence of gastric retention, vomiting, abdominal distention (all p < 0.001), diarrhoea (p = 0.02) and constipation (p = 0.002) in the experimental group. One study reported the incidence of aspiration in the control group was higher, but this was not statistically significant (p = 0.07). The meta-regression analysis showed there was a statistically significant correlation between intervention personnel and gastric residual volume (p = 0.035). CONCLUSION: AM could reduce the amount and incidence of gastric retention and the changes in abdominal circumference, and significantly reduce the incidence of gastrointestinal symptoms, without increasing the incidence of aspiration for EN patients. No Patient or Public Contribution.
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Nutrição Enteral , Gastroenteropatias , Humanos , Recém-Nascido , Nutrição Enteral/métodos , Gastroenteropatias/complicações , Vômito/complicações , Constipação Intestinal/etiologia , Massagem/efeitos adversos , Massagem/métodosRESUMO
The purpose of this study was to analyse the postoperative complications of different gastrectomy methods, and provides guidance for the development of enhanced recovery after surgery (ERAS) protocols. We searched EMBASE, Web of Science, CINAHL, PubMed, MEDLINE, and the Cochrane Central Register of Controlled Trials for articles published from database inception to January 30, 2020. Statistical analysis was performed using R version 3.6.3 with single-rate meta-analysis. A total of 22 studies with 2127 patients were included. The types of postoperative complications showed that the pooled rate of nausea and vomiting was 10.22% (95% CI 4.56 to 17.48) and the pancreatic fistula was 3.58% (2.12 to 5.35) often occurred in patients who underwent laparoscopic gastrectomy (LG). After open gastrectomy (OG), postoperative urinary retention was 3.88% (0.00 to 13.17) and pancreatic fistula was 3.81% (1.78 to 6.42). The main complications of laparoscopic-assisted total gastrectomy and laparoscopic-assisted subtotal gastrectomy were pneumonia and pancreatic fistula, the rate was 3.19% (0.94 to 0.637) and 3.06% (0.11 to 8.36), respectively. In order to reduce the incidence of complications, ERAS should be revised from the aspects of rehabilitation, intraoperative application of new technology, shortening the operation time, early detection of high-risk groups, and implementation of audit. Key Words: Enhanced recovery after surgery, Gastric cancer, Postoperative complications.
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Recuperação Pós-Cirúrgica Melhorada , Laparoscopia , Neoplasias Gástricas , Gastrectomia/efeitos adversos , Gastrectomia/métodos , Humanos , Laparoscopia/efeitos adversos , Laparoscopia/métodos , Tempo de Internação , Fístula Pancreática , Complicações Pós-Operatórias/etiologia , Neoplasias Gástricas/cirurgia , Resultado do TratamentoRESUMO
The addition of [EMIM]NO3 effectively inhibited aluminium current collector corrosion in a LiTFSI-based electrolyte since both [EMIM]+ and NO3- could exclude TFSI- from directly contacting the surface of the aluminium current collector as a result of competitive adsorptions. This work offers a novel technical solution to address the corrosion issue and may promote the wide application of sulfonimide salts.
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BACKGROUND: Adherence to oral nutritional supplement therapy among postoperative patients with gastric cancer is low. There is little knowledge about patients' priorities and needs regarding oral nutritional supplement therapy. The discrete choice experiment is an innovative method used to elicit patients' preferences. Good practice guidelines emphasize that the development of attributes and levels is a fundamentally important process. OBJECTIVE: To comprehensively describe the identification, refinement, and selection of attributes and levels for a discrete choice experiment. METHODS: A mixed-methods approach, consisting of three consecutive steps: a literature review, in-depth interviews, and focus groups. First, the literature review allowed quick identification of attributes and levels. Then, 15 in-depth interviews were conducted to gather a rich description of the experience of patients taking oral nutritional supplements after gastrectomy and to verify and enrich the attributes and levels list. Finally, four focus group participants discussed the wording of the attributes and levels and reduced the number of attributes to manageable numbers through voting ranking methods. RESULTS: Following the literature review and qualitative data collection, eight attributes were finally generated, each with two to three levels. The following attributes were included: 1) information provider; 2) health guidance approach; 3) adverse reactions; 4) flavor; 5) follow-up method; 6) follow-up frequency; 7) psychological support; 8) cost. These attributes covered the important attributes of nutritional preparations and health guidance included in ONS therapy that were relevant to patients. CONCLUSIONS: This study's mixed-methods approach has been found highly suitable to identify, refine and select attributes and levels for a discrete choice experiment. The three methods have pros and cons, and they complement each other, especially the analysis of qualitative data led to a deeper and broader understanding of attributes and levels.
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Neoplasias Gástricas , Terapia Comportamental , Gastrectomia , Humanos , Apoio Nutricional , Período Pós-Operatório , Neoplasias Gástricas/cirurgiaRESUMO
BACKGROUND: Evidence-based nursing (EBN) is a complex subject for teachers and students due to the abstract concepts involved. It requires combining theory with practice and is included in the major courses required for a master's education in many countries. Case-based learning (CBL), which is a student-centred teaching method, has been widely used in numerous disciplines because it can bridge the gap between theory and practice and foster critical thinking and communication skills. However, to adapt CBL to EBN coursework for a Master of Nursing degree, improve evidence-based practice (EBP) and enhance core competencies, the case design and operational procedures of CBL need to be further examined. OBJECTIVES: To explore nursing master's students' experiences of dialogic CBL and case design and operational procedures regarding dialogic CBL. DESIGN: A descriptive-qualitative study design was used. SETTING AND PARTICIPANTS: The study was carried out in the nursing master's programme at a university in China. Twenty first-year nursing master's students who completed a 10-week EBN course were recruited using purposive sampling. METHODS: Data were collected between September and December 2020 via in-depth semistructured interviews. The data were analysed using thematic analysis. RESULTS: Four themes were identified: (1) 'learning theoretical EBN knowledge'; (2) 'improving clinical nursing ability'; (3) 'enhancing core competencies'; and (4) 'barriers to implementing dialogic CBL'. CONCLUSIONS: The study provided a standardised CBL procedure based on students' experiences, which included preparation, group discussions, presentations, and teachers' feedback following the presentations, and these operational procedures were shown to be indispensable. The student experiences in this study should be referenced by nursing educators who apply this teaching method in other graduate and undergraduate nursing courses such as surgical nursing and nursing research.
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Bacharelado em Enfermagem , Educação de Pós-Graduação em Enfermagem , Estudantes de Enfermagem , Enfermagem Baseada em Evidências , Docentes de Enfermagem , HumanosRESUMO
BACKGROUND: Coronary heart disease (CHD) causes mental discomfort in patients, so there is a pressing need to strengthen the nursing cooperation with patients during treatment, which can help patients to regulate their psychological status, promoting successful rehabilitation. This study was to explore the effect of comfort care based on the collaborative care model (CCM) on the compliance and self-care ability of patients with CHD. METHODS: A total of 104 CHD patients were randomly selected in our hospital between April 2019 and April 2020. They were divided into two groups (with 52 cases in each group) using a random number table. Routine care was applied in the control group, while comfort care based on the CCM was employed in the study group. Self-made questionnaires were used to investigate the health knowledge proficiency, psychological status, compliance, self-care ability, and comfort degree in the two groups before and after intervention. RESULTS: Following the interventions, the health knowledge proficiency in the study group was higher than that in the control group (P<0.05). The Self-rating Anxiety Scale (SAS) and Self-rating Depression Scale (SDS) scores in the study group were lower than those in the control group (P<0.05). The compliance rate in the study group was 96.15%, which was higher than that of the control group (82.69%) (P<0.05). The Exercise of Self-care Agency (ESCA) score in the study group was also higher than that of the control group (P<0.05). Moreover, the physical, mental, social, and emotional comfort scores in the study group were higher than those in the control group (P<0.05). CONCLUSIONS: Comfort nursing based on the CCM improves CHD patients' health knowledge, regulates their psychological status, and improves their compliance, self-care ability, and comfort.
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Doença das Coronárias , Conforto do Paciente , Humanos , Cooperação do Paciente , Autocuidado , Inquéritos e QuestionáriosRESUMO
Sulfide solid electrolytes (SEs) are recognized as one of the most promising candidates for all-solid-state batteries (ASSBs), due to their superior ionic conductivity and remarkable ductility. However, poor air stability, complex synthesis process, low yield, and high production cost obstruct the large-scale application of sulfide SEs. Herein, a one-step gas-phase synthesis method for sulfide SEs with oxide raw materials in ambient air, completely getting rid of the glovebox and thus making large-scale production possible, is reported. By adjusting substituted elements and concentrations, the ionic conductivity of Li4- x Sn1- x Mx S4 can reach 2.45 mS cm-1 , which represents the highest value among all reported moist-air-stable and recoverable lithium-ion sulfide SEs reported. Furthermore, ASSBs with air/water-exposed and moderate-temperature-treated Li3.875 Sn0.875 As0.125 S4 even maintains superior performances with the highest reversible capacity (188.4 mAh g-1 ) and the longest cycle life (210 cycles), which also breaks the record. Therefore, it may become one of the most critical breakthroughs during the development of sulfide ASSBs toward its practical application and commercialization.
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Combustion is a chemical reaction that emits heat and light. Nanofire is a kind of flameless combustion that occurs on the micro-nano scale. Pt/Al2O3 film with a thickness of 20 nm can be prepared as a catalyst by micro-nano processing. When the methanol-air mixture gas passes through the surface of the catalyst, a chemical reaction begins and a significant temperature rise occurs in the catalyst region. Compared to macroscopic combustion, Nanofire has many special properties, such as large temperature gradients, uniform temperature distribution, and fast temperature response. The large temperature gradient is the most important property of Nanofire, which can reach 1330 K/mm. Combined with thermoelectric materials, it can realize the efficient conversion of chemical energy to electric energy. Nanoscale thickness offers the possibility of establishing thermal gradient. On the other hand, large thermal gradient has an effect on the transport properties of phonons and electrons in film materials. From these we can get the scale effects of heat. This article will provide an overview of the preparation, properties and applications of Nanofire, and then a comprehensive introduction to the thermal scale and thermal scale effects.
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The objective of this study is to investigate the cation exchange property of the product zeolite Na-P1 (Z-P1) synthesized from coal fly ash (FA) by the alkali hydrothermal reaction, and to evaluate the water purification ability for the simultaneous removal of ammonium and phosphate. High-purity Z-P1 was obtained by optimizing the reaction conditions of aging time and crystallization temperature, and using FA particles of uniform particle size. Kinetic ammonium sorption experiments with Z-P1 were well described by both the Langmuir and Freundlich models, and the maximum adsorption capacity of the Z-P1 was 23.15â mg/g. Moreover, in order to determine the effect of magnesium intervention on the ammonium and phosphate removal from simulated swine wastewater, two forms of magnesium were studied, that is Mg-saturated Z-P1 and direct use of Mg2+ source with Z-P1, as compared with the control (sole Z-P1). Results showed that Mg2+ addition could improve phosphate removal efficiency significantly by forming struvite. Furthermore, dosing Z-P1 with dissolved Mg2+ was better than Mg-saturated Z-P1 in terms of ammonium and phosphate removal efficiencies, and the preparation cost. When dosing 20â g/L Z-P1 with 4â mM Mg2+, ammonium and phosphate removal efficiencies reached 65.2% and 92.3% after 30â min.