ABSTRACT Background: Adriamycin (ADM) resistance remains an obstacle to gastric cancer chemotherapy treatment. Objective: The objective of this study was to study the role and mechanism of transcription factor E2F7 in sensitivity to ADM chemotherapeutic agents in gastric cancer. Methods: Cell viability and cell sensitivity were assessed by CCK-8 and IC50 values of ADM were calculated. The impact of ADM on cellular proliferative capacity was assessed through colony formation assay. The binding relationship between E2F7 and PKMYT1 was then verified by dual luciferase assay and chromatin immunoprecipitation assay. ERK1/ERK2 and p-ERK1/p-ERK2 protein expression levels were detected by western blot. Results: In both gastric cancer tissue and ADM-resistant cells, a conspicuous upregulation of E2F7 and PKMYT1 was observed. Upregulated PKMYT1 was notably enriched in the MAPK signaling pathway. Enhanced levels of E2F7 were shown to not only drive gastric cancer cell proliferation but also engender a reduction in the sensitivity of these cells to ADM. Furthermore, PKMYT1 emerged as a downstream target of E2F7. Activation of E2F7 culminated in the transcriptional upregulation of PKMYT1, and silencing E2F7 reversed the inhibitory impact of PKMYT1 overexpression on ADM sensitivity in gastric cancer cells. Conclusion: E2F7/PKMYT1 axis might promote the proliferation and partially inhibit ADM sensitivity of gastric cancer cells by activating the MAPK pathway.

ABSTRACT Diabetic retinopathy (DR) is a complication of diabetes with a complex pathophysiology and multiple factors involved. Recently, it has been found that the upregulation of the renin-angiotensin-aldosterone system (RAAS) leads to overexpression of angiotensin II (Ang II), which induces oxidative stress, inflammation, and angiogenesis in the retina. Therefore, RAAS may be a promising therapeutic target in DR. Notably, RAAS inhibitors are often used in the treatment of hypertension. Still, the potential role and mechanism of DR must be further studied. In this review, we discuss and summarize the pathology and potential therapeutic goals of RAAS in DR.

Abstract Objective This study investigated the relationship between PDZK1 expression and Dynamic Contrast-Enhanced MRI (DCE-MRI) perfusion parameters in High-Grade Glioma (HGG). Methods Preoperative DCE-MRI scanning was performed on 80 patients with HGG to obtain DCE perfusion transfer coefficient (Ktrans), vascular plasma volume fraction (vp), extracellular volume fraction (ve), and reverse transfer constant (kep). PDZK1 in HGG patients was detected, and its correlation with DCE-MRI perfusion parameters was assessed by the Pearson method. An analysis of Cox regression was performed to determine the risk factors affecting survival, while Kaplan-Meier and log-rank tests to evaluate PDZK1′s prognostic significance, and ROC curve analysis to assess its diagnostic value. Results PDZK1 was upregulated in HGG patients and predicted poor overall survival and progression-free survival. Moreover, PDZK1 expression distinguished grade III from grade IV HGG. PDZK1 expression was positively correlated with Ktrans 90, and ve_90, and negatively correlated with kep_max, and kep_90. Conclusion PDZK1 is upregulated in HGG, predicts poor survival, and differentiates tumor grading in HGG patients. PDZK1 expression is correlated with DCE-MRI perfusion parameters.

Resumo: A tecnologia biométrica transformou as características biológicas humanas em uma nova forma de privacidade, e o mal uso dessa tecnologia apresenta desafios para proteger essa nova privacidade. Esse artigo inicialmente define tecnologia biométrica e características biométricas, demonstrando posteriormente por que características biométricas pertencem à privacidade pessoal e como tecnologia biométrica coloca desafios à sua proteção. Através de análise, esse artigo discute que a essência desses desafios é o conflito entre o princípio ético da proteção da privacidade e o princípio ético de maximizar benefícios sociais. De forma a visar esses desafios é necessário primeiro ponderar os princípios éticos fundamentais. Os dois princípios básicos de proteção da privacidade e de maximizar benefícios sociais não são mutuamente antagônicos mas hierárquicos, e essa hierarquia deve ser baseada no princípio da viabilidade prática. Isso é, aplicar tecnologia biométrica deve primeiro atender ao princípio da viabilidade prática e, nessa premissa, compreender o princípio de maximizar benefícios sociais com base em não infringir o princípio de proteção da privacidade.

Abstract: Biometric technology has transformed human biological characteristics into a new form of privacy, and the misuse of this technology poses challenges to protecting this new privacy. This article initially defines biometric technology and biometric characteristics, further demonstrating why biometric characteristics belong to personal privacy and how biometric technology poses challenges to its protection. Through analysis, this article argues that the essence of these challenges is the conflicts between the ethical principle of privacy protection and the ethical principle of maximizing social benefits. In order to address these challenges, it is necessary first to weigh the fundamental ethical principles. The two basic principles of privacy protection and maximizing social benefits are not mutual antagonism but hierarchy, and this hierarchy should be based on the principle of practical feasibility. That is, applying biometric technology should first meet the principle of practical feasibility and, on this premise, realize the principle of maximizing social benefits based on not infringing on the principle of privacy protection.

Resumen: La tecnología biométrica ha transformado las características biológicas humanas en una nueva forma de privacidad, y el uso indebido de esta tecnología plantea desafíos a su protección. En este artículo se define inicialmente la tecnología biométrica y las características biométricas; se demuestra además por qué las características biométricas pertenecen a la privacidad personal y cómo la tecnología biométrica plantea retos para su protección. Este artículo argumenta que la esencia de estos retos es el conflicto entre el principio ético de protección de la privacidad y el de maximización de los beneficios sociales. Para abordar estos retos es necesario sopesar primero los principios éticos fundamentales. Los dos principios básicos de protección de la privacidad y maximización de los beneficios sociales no son antagónicos, sino jerárquicos, y esta jerarquía debe basarse en el principio de viabilidad práctica. Es decir, la aplicación de la tecnología biométrica debe cumplir primero el principio de viabilidad práctica y, a partir de esta premisa, realizar el principio de maximización de los beneficios sociales sobre la base de no infringir el principio de protección de la intimidad.

RESUMEN Los desastres naturales relacionados al sector agrícola ocurren frecuentemente en China. Este artículo estudia la prevención y control de sequías en terrenos agrícolas y el método de optimización de estructuras para evitar desastres. Inicialmente se analizó el impacto en los cambios en estructuras de prevención de sequías y de inundación y se construyó un sistema de evaluación de la relación de eficiencia prevención-resultados. Luego se construyó un modelo de evaluación con el método DEA (Análisis Envolvente de Datos, del inglés Data Envelopment Analysis) para que provea de una base teórica la evaluación cuantitativa de la relación de eficiencia prevención-resultados. Con la provincia Jiangxi como área de estudio, se analizó la relación prevención- resultados en el control de sequías e inundaciones en terrenos agrícolas en veinte ciudades entre 2014 y 2017. Los resultados muestran que la relación de eficiencia prevención-resultados en el 80 % de las tierras de cultivo en la provincia Jiangxi es bajo y los recursos para la prevención no se utiliza suficientemente. Adicionalmente, la baja eficiencia técnica y a escala son las principales razones para el pobre rendimiento en la relación prevención-resultados en el control de sequías e inundaciones. El efecto de los recursos humanos y financieros en este sector en la provincia de Jiangxi es ligeramente diferente para el valor de los resultados y el valor actual. Desde el aspecto del fortalecimiento de instalaciones básicas, investigación técnica y desarrollo de productos agrícolas se debe proponer una estrategia de optimización para la inversión en estructura de prevención de estos desastres.

ABSTRACT: Natural disasters related to the agriculture sector frequently occur in China. This article studied the prevention and control of drought and flood in agricultural lands and the optimization method of planting structures to avoid disaster. Firstly, the impact of the change of input structure on the prevention and control of drought and flood disasters of agricultural lands was analyzed, and the evaluation system of input-output efficiency was constructed. Secondly, the evaluation model was built using the DEA (Data Envelopment Analysis) method to provide the theoretical basis for the quantitative evaluation of input-output efficiency. Taking Jiangxi Province as an example, the input-output data of drought and flood control of agricultural land in twenty cities in 2014- 2017 was analyzed. The results show that the input-output efficiency of 80% of farmland in Jiangxi Province is low, and drought and flood prevention resources are not sufficiently utilized. In addition, the low pure technical and scale efficiency are the main reasons for the low input-output efficiency of drought and flood prevention. The effect of human and financial input in drought and flood prevention of farmland in Jiangxi Province is slightly different for value output and actual output. From the aspects of strengthening the investment in basic facilities and the technical research and development of agricultural products, the optimization strategy for the input structure of drought and flood prevention of agricultural land is put forward.

Abstract A reinforced concrete (RC) column improved with central large-diameter butted steel rods (CLBSR column) has been proposed to increase the limit value of the axial compression ratio. This paper presents the seismic behavior analysis of CLBSR columns subjected to low-cycle reciprocating loading. The CLBSR columns were also compared with the RC column improved with central large-diameter steel rods (CLSR column) and the RC column improved with central reinforcement bars (CRB column) under the same experimental conditions. The typical failure modes, hysteretic curves, skeleton curves, stiffness degradation, and energy dissipation capacity were all investigated. The improved PARK damage model obtained the corresponding relationships between the damage indices and the damage state of each column. The test results indicated that the CLBSR columns and CLSR columns had similar seismic behavior, but were slightly inferior to the CRB columns. Overall, the butt joint of large-diameter steel rods had little effect on the seismic behavior.

Abstract Xingnaojing (XNJ) injection was used to treat pneumonia and stroke in clinic in China, but with poor patient compliance. Xingnaojing nanoemulsion for intranasal delivery was developed to improve it. This article tried to evaluate the mucosal irritation of Xingnaojing nanoemulsion and investigate cellular uptake mechanism of its encapsulated lipophilic drugs. The toad palate model and rat nasal mucosa model were used to study the nasal ciliotoxicity and nasal mucosal irritation of nanoemulsion to evaluate its safety intranasally. The cellular uptake mechanism was studied by Calu-3 cell model. Coumarin 6 was encapsulated in nanoemulsion and the endocytic pathways were studied by cellular uptake experiments after being treated with different inhibitors. In toad palate model, the cilia movement of Xingnaojing nanoemulsion group last for 467.40 ± 39.02 min, which was obviously longer than deoxycholate group (90.60 ± 15.40 min). Studies on rats showed that the damage caused by nanemulsion is capable of being recovered. Nanoemulsion uptake was reduced obviously when cells were treated with wortmannin, and it also decreased about 13% when the temperature reduced from 37ºC to 4ºC. Mucosal irritation caused by nanoemulsion is low and the damage is recoverable. The cellular uptake of Xingnaojing nanoemulsion is energy-dependent, and macropinocytosis was the most important pathway for cellular uptake.

RESUMO Com o rápido desenvolvimento e aplicação da tecnologia da computação, o estudo da psicologia esportiva é uma das principais tarefas de pesquisa nas universidades atuais. As escalas psicológicas precisam ser convertidas de acordo com as tecnologias da informação atuais. Tendo em vista que os métodos antigos não satisfazem a demanda crescente, aplica-se a escala psicométrica baseada no algoritmo genético no campo da psicologia esportiva para construir o modelo de pesquisa. Utiliza-se o processo de hierarquia analítica para comparar os pesos dos indicadores. No modo de pesquisa da psicologia esportiva, aplica-se a capacidade auxiliar da escala psicológica para melhorar a aplicação da psicologia esportiva.

ABSTRACT With the rapid development and application of computer technology, the study of sports psychology is one of the major research tasks in current universities. The psychological scales need to be converted according to current computer technologies. Because the old-fashioned methods cannot meet the increasing demand, application of psychometric scale based on genetic algorithm in sports psychology is applied to construct the research model. Analytic hierarchy process is used to compare the weights of indicators. In the research mode of sports psychology, the auxiliary ability of college psychological scale is applied to improve the application of sports psychology ability.

RESUMEN Con el rápido desarrollo y la aplicación de la tecnología de la computación, el estudio de la psicología deportiva es una de las principales tareas de investigación en las universidades actuales. Las escalas psicológicas precisan ser convertidas de acuerdo con las tecnologías de la información actuales. Teniendo en vista que los métodos antiguos no satisfacen la demanda creciente, se aplica la escala psicométrica basada en el algoritmo genético en el campo de la psicología deportiva para construir el modelo de investigación. Se utiliza el proceso de jerarquía analítica para comparar los pesos de los indicadores. En el modo de investigación de la psicología deportiva, se aplica la capacidad auxiliar de la escala psicológica para mejorar la aplicación de la psicología deportiva.

In order to investigate the hot deformation behaviors of Invar36 alloy, isothermal compressive tests were conducted on a Gleeble 1500 thermo-mechanical simulator at the temperatures of 873, 948, 1023, 1098 and 1173 K and the strain rates of 0.01, 0.1, 1 and 10 s−1. The effects of strain, temperature and strain rate on flow stress were analyzed, and a dynamic recrystallization type softening characteristic with unimodal flow behavior is determined. An artificial neural network based on back-propagation algorithm was proposed to handle the complex deformation behavior characteristics. The ANN model was evaluated in terms of correlation coefficient and average absolute relative error. A comparative study was performed on ANN model and constitutive equation by regression method for Invar36 alloy. Finally, the ANN model was applied to the finite element simulation, and an experimental study on trial hot forming of a V-shaped part was conducted to demonstrate the precision of the finite element simulation based on predicted flow stress data by ANN model. The results have sufficiently showed that the well-trained ANN model with BP algorithm is able to deal with the complex flow behaviors of Invar36 alloy and has great application potentiality in hot deformation.

Abstract In this study, antioxidant peptides were prepared from hairtail surimi by hydrolysis. Response surface methodology coupled with a Box-Behnken design was applied to optimize hydrolysis conditions. The optimum conditions were determined as: 12.1 h incubation time, 44.74 °C incubation temperature and enzyme concentration 1858.85 U/g. The amino acid compositions analysis showed most abundant amino acid in hairtail surimi antioxidant peptides (HAP) was Glutamic acid followed by Aspartic acid and Lysine. In addition, the fraction of HAP with a molecular weight less than 3 kDa showed the strongest antioxidant activity among the 4 fractions obtained by ultrafiltration. Furthermore, HAP showed good stability in mild acidic, alkaline, or salt solutions, in in vitro digestive juice, and upon heating. In conclusion, hairtail surimi might be a good source to produce antioxidant peptides, which can be used as a natural antioxidant in food industry.

Resumo Objetivo: Embora haja um reconhecimento cada vez maior dos custos da externalidade do baixo desempenho ambiental das empresas, ainda há diferenciais significativos entre as empresas na gestão do desempenho ambiental. Baseamo-nos nas teorias da gestão estratégica para investigar os fatores que contribuem para esses diferenciais. Metodologia: Usando uma amostra da pesquisa de 2015 com pequenas e médias empresas chinesas, investigamos empiricamente a tese alternativa de que o motivo da maximização do lucro constitui a heurística adequada para a gestão de desempenho dos fatores da responsabilidade social corporativa. Resultados: A capacidade verde das empresas é um agregado do comércio verde e dos investimentos que as empresas fazem em iniciativas verdes complementares ao seu modelo de negócio estratégico. O nível de aspiração de lucro das empresas tem influência negativa sobre sua programação verde, ao passo que a liderança transformacional tem influência positiva. Contribuições: Desenvolvemos sete proposições representadas como relações algébricas para interpretar esses fatores.

Abstract Purpose: Even though there is a growing recognition of the externality costs of low environmental performance by firms, there continue to be significant inter-firm differentials in environmental performance management. We build on the theories of strategic management to inquire into the factors contributing to these differentials. Design/methodology/approach: Using a 2015 survey sample of Chinese small and medium enterprises, we empirically investigate the alternative thesis that the profit maximization motive constitutes the appropriate heuristic for the performance management of corporate social responsibility factors. Findings: The green capability of a firm is an aggregate of green trading and the investments that the firm has made in green initiatives that are complementary to its strategic business model. The profit aspiration level of firms has a negative influence on their green programing, while transformational leadership has a positive influence. Originality/value: We develop seven propositions represented as algebraic relationships to interpret these factors.

Many researchers have shown that pretreatment plasma fibrinogen levels are closely correlated with the prognosis of patients with lung cancer (LC). In this study, we thus performed a meta-analysis to systematically assess the prognostic value of pretreatment plasma fibrinogen levels in LC patients. A computerized systematic search in PubMed, EMBASE, Web of Science and China National Knowledge Infrastructure (CNKI) was performed up to March 15, 2018. Studies with available data on the prognostic value of plasma fibrinogen in LC patients were eligible for inclusion. The pooled hazard ratios (HRs) and odd ratios (ORs) with 95% confidence intervals (CIs) were used to evaluate the correlation between pretreatment plasma fibrinogen levels and prognosis as well as clinicopathological characteristics. A total of 17 studies with 6,460 LC patients were included in this meta-analysis. A higher pretreatment plasma fibrinogen level was significantly associated with worse overall survival (OS) (HR: 1.57; 95% CI: 1.39-1.77; p=0.001), disease-free survival (DFS) (HR: 1.53; 95% CI: 1.33-1.76; p=0.003), and progression-free survival (PFS) (HR: 3.14; 95% CI: 2.15-4.59; p<0.001). Furthermore, our subgroup and sensitivity analyses demonstrated that the pooled HR for OS was robust and reliable. In addition, we also found that a higher fibrinogen level predicted advanced TNM stage (III-IV) (OR=2.18, 95% CI: 1.79-2.66; p<0.001) and a higher incidence of lymph node metastasis (OR=1.74, 95% CI: 1.44-2.10; p=0.02). Our study suggested that higher pretreatment plasma fibrinogen levels predict worse prognoses in LC patients.