RESUMO Introdução O treino de fortalecimento do core tem sido amplamente utilizado no treinamento esportivo competitivo, alcançando resultados notáveis no treino esportivo mais acirrado ao maximizar a força e precisão dos atletas. Acredita-se que um protocolo específico para as tenistas universitárias possa causar os mesmos resultados. Objetivo Verificar a eficácia do treinamento de força do core no treinamento de tenistas universitárias. Métodos Estudo randomizado controlado de tenistas universitárias (n=40) com protocolo específico de fortalecimento de core para fortalecimento versus métodos tradicionais de treino de força. Foram comparadas as alterações das habilidades táticas pré e pós experimento. O tratamento estatístico descritivo dos resultados coletados foi confrontado com a literatura atual. Resultados Comparado com o treinamento de força tradicional, o treinamento de força do core revelou-se mais propício ao desenvolvimento da força do core em tenistas universitárias. Conclusão O treinamento de força do core auxilia no desenvolvimento da habilidade e tática das tenistas universitárias. Nível de evidência II; Estudos terapêuticos - Investigação de resultados.

ABSTRACT Introduction Core strength training has been extensively used in competitive sports training, achieving remarkable results in the most competitive sports training by maximizing athletes’ strength and accuracy. It is believed that a specific protocol for female university tennis players can bring the same results. Objective Verify the effectiveness of core strength training in the performance of female university tennis players. Methods Randomized controlled trial of female university tennis players (n=40) with a specific core strength training protocol versus traditional strength training methods. Changes in tactical skills pre and post-experiment were compared. Descriptive statistical treatment of the collected results was confronted with current literature. Results Compared with traditional strength training, core strength training proved to be more conducive to developing core strength in female college tennis players. Conclusion Core strength training assists in the development of skills and tactics in female college tennis players. Evidence level II; Therapeutic Studies - Investigating the results.

RESUMEN Introducción El entrenamiento de la fuerza del core se ha utilizado ampliamente en el entrenamiento deportivo de competición, logrando resultados notables en el entrenamiento deportivo más competitivo al maximizar la fuerza y la precisión de los atletas. Se cree que un protocolo específico para los tenistas universitarios puede provocar los mismos resultados. Objetivo Comprobar la eficacia del entrenamiento de la fuerza del core en el entrenamiento de las tenistas universitarias. Métodos Estudio controlado aleatorio de jugadoras de tenis universitarias (n=40) con un protocolo específico de entrenamiento de la fuerza del core para el fortalecimiento frente a los métodos tradicionales de entrenamiento de la fuerza. Se compararon los cambios en las habilidades tácticas antes y después del experimento. El tratamiento estadístico descriptivo de los resultados recogidos se confrontó con la literatura actual. Resultados En comparación con el entrenamiento de fuerza tradicional, el entrenamiento de fuerza del core demostró ser más propicio para el desarrollo de la fuerza del core en las tenistas universitarias. Conclusión El entrenamiento de la fuerza del core ayuda al desarrollo de la habilidad y la táctica de las tenistas universitarias. Nivel de evidencia II; Estudios terapéuticos - Investigación de resultados.

Abstract Resin AB-8 was screened from seven resins with different polarity and particle size because of its better decoloration and deproteinization efficiency to polysaccharide from the root of Actinidia valvata (AvPs), and then the optimized parameter conditions were applied by the single-factor experiments and were shown as follows: a concentration of crude polysaccharide of 3 mg/mL, an adsorption time of 40 min, an initial pH of 7.0, a flow rate of 1.5 BV/h. In addition, the results of HPGPC, FT-IR, PMP-HPLC-DAD, 1H NMR and Congo red test showed that the sugar chain, structural group, monosaccharide composition and triple-helix conformation structure of AvPs were not broken during resin AB-8 treatment. Moreover, AvPs could keep the stability of biological activity after the resin AB-8 treatment, and revealed an obviously antioxidant and anticancer activities in vitro as well. This research suggests that this method is promising for the deproteinization and decolorization of AvPs which could be explored as a potential antioxidant or anticancer agent for use in functional food or medicine.

Cervical cancer (CC) patients have a poor prognosis due to the high recurrence rate. However, there are still no effective molecular signatures to predict the recurrence and survival rates for CC patients. Here, we aimed to identify a novel signature based on three types of RNAs [messenger RNA (mRNAs), microRNA (miRNAs), and long non-coding RNAs (lncRNAs)]. A total of 763 differentially expressed mRNAs (DEMs), 46 lncRNAs (DELs), and 22 miRNAs (DEMis) were identified between recurrent and non-recurrent CC patients using the datasets collected from the Gene Expression Omnibus (GSE44001; training) and The Cancer Genome Atlas (RNA- and miRNA-sequencing; testing) databases. A competing endogenous RNA network was constructed based on 23 DELs, 15 DEMis, and 426 DEMs, in which 15 DELs, 13 DEMis, and 390 DEMs were significantly associated with disease-free survival (DFS). A prognostic signature, containing two DELs (CD27-AS1, LINC00683), three DEMis (hsa-miR-146b, hsa-miR-1238, hsa-miR-4648), and seven DEMs (ARMC7, ATRX, FBLN5, GHR, MYLIP, OXCT1, RAB39A), was developed after LASSO analysis. The built risk score could effectively separate the recurrence rate and DFS of patients in the high- and low-risk groups. The accuracy of this risk score model for DFS prediction was better than that of the FIGO (International Federation of Gynecology and Obstetrics) staging (the area under receiver operating characteristic curve: training, 0.954 vs 0.501; testing, 0.882 vs 0.656; and C-index: training, 0.855 vs 0.539; testing, 0.711 vs 0.508). In conclusion, the high predictive accuracy of our signature for DFS indicated its potential clinical application value for CC patients.

ABSTRACT A closed-form analytical solution to rheological phenomena is obtained based on Hoek-Brown (HB) yield criterion and the generalized Bingham model. Once the circular tunnel is excavated, an initial plastic region is formed. When the total stresses fulfil the yield condition, the initial plastic region steps into the viscoplastic region, in which the displacement develops with time. The one-dimensional constitutive equation of the generalized Bingham model is transformed into a three-dimensional expression in polar coordinates by combining the plane strain condition. With the help of equilibrium differential equation, geometric equation and boundary condition, the stress and displacement in the initial plastic region can be expressed. At the moment of t, the stresses and displacements are described similar to the solutions of the elasto-plastic state. The stresses, strains and displacements after transformation can be expressed in the viscoplastic region. The proposed solution was verified by the closed-form solution of circular tunnels in elastic-brittle-plastic rock mass.

Two fluorescent anion sensors bearing phenol, carbazole-NH and -NO2 group were designed and synthesized. They both exhibited highly binding ability for H2PO4- among the anions tested. In the presence of H2PO4-, the fluorescence of the sensors underwent a dramatic enhancement, while the presence of other anions such as F-, AcO-, Cl-, Br-, and I-, had weak or no effect on the fluorescence. The determination limit of two sensors (1 and 2) toward H2PO4- were 3.0x10-7 and 5.0x10-7 molˑL-1, respectively. Theoretical investigation indicated it was the highest HOMO to induce the red-shift phenomena of two sensors.

Two active mutations (A 781 G and A 1575 G) in growth hormone (GH) gene, and their associations with litter size (LS), were investigated in both a high prolificacy (Matou, n = 182) and a low prolificacy breed (Boer, n = 352) by using the PCR-RFLP method. Superovulation experiments were designed in 57 dams, in order to evaluate the effect of different genotypes of the GH gene on superovulation response. Two genotypes (AA and AB, CC and CD) in each mutation were detected in these two goat breeds. Neither BB nor DD homozygous genotypes were observed. The genotypic frequencies of AB and CC were significantly higher than those of AA and CD. In the third parity, Matou dams with AB or CC genotypes had significantly larger litter sizes than those with AA and CD (p < 0.05). On combining the two loci, both Matou and Boer dams with ABCD genotype had the largest litter sizes when compared to the other genotypes (p < 0.05). When undergoing like superovulation treatments, a significantly higher number of corpora lutea and ova, with a lower incidence of ovarian cysts, were harvested in the AB and CC genotypes than in AA and CD. These results show that the two loci of GH gene are highly associated with abundant prolificacy and superovulation response in goat breeds.