Carbon fiber reinforced polymer (CFRP), a highly engineered lightweight material with superior properties, is widely used in industrial fields, such as aerospace, automobile, and railway transportation, as well as medical implants and supercapacitor. This work presents an effective surface treatment method for the controllable fabrication of hydrophilic surface micro/nanostructures of CFRP through femtosecond laser processing. Selective removal of the epoxy resin and leaving the carbon fibers exposed are achieved when CFRP is weakly ablated by a femtosecond laser.
View Article and Find Full Text PDFBackground: To analyse the association among the simultaneous effects of dietary intake, daily life behavioural factors, and frailty outcomes in older Chinese women, we predicted the probability of maintaining physical robustness under a combination of different variables.
Methods: The Fried frailty criterion was used to determine the three groups of "frailty", "pre-frailty", and "robust", and a national epidemiological survey was performed. The three-classification decision tree model was fitted, and the comprehensive performance of the model was evaluated to predict the probability of occurrence of different outcomes.
Haloarchaea with the capacity to degrade alkanes is promising to deal with petroleum pollution in hypersaline environments. However, only a limited number of haloarchaeal species are investigated, and their pathway and mechanism for alkane degradation remain unclear. In this study, Halogranum rubrum RO2-11, a haloarchaeal strain, verified the ability to degrade kerosene and hexadecane in 184 g/L NaCl, with 53% and 52% degradation rates after 9 and 4 days, respectively.
View Article and Find Full Text PDFWhat Is Already Known About This Topic?: Previous studies have predominantly examined the micro-level aspects of women aging inflection points, while macro-level research using big data on the inflection points of aging among middle-aged and elderly women in China is currently limited.
What Is Added By This Report?: This study determined the inflection ages for physiological, psychological, social, and total dimensions in middle-aged, young elderly, and elderly women [(48.0-53.
Background: This study systematically reviewed injury death and causes in the elderly population in China from 2000 to 2020, to prevent or reduce the occurrence of injuries and death.
Methods: The CNKI, VIP, Wan Fang, MEDLINE, Embase, SinoMed, and Web of Science databases were searched to collect epidemiological characteristics of injury death among elderly over 60 years old in China from January 2000 to December 2020. Random effects meta-analysis was performed to pool injury mortality rate and identify publication bias, with study quality assessed using the AHRQ risk of bias tool.
Technol Cancer Res Treat
January 2023
Postoperative readmissions are considered an indicator of healthcare quality. The purpose of this study was to assess the factors associated with readmission following pulmonary resection for lung cancer. A comprehensive search was performed in PubMed, Web of science, the Cochrane Library, and databases of CNKI and Wanfang.
View Article and Find Full Text PDFEar Nose Throat J
September 2023
Objective: Intrathyroidal thymic carcinoma (ITC) is a rare low-grade malignant thyroid tumor. There is neither sufficient understanding of this tumor nor its clinical treatment. This study is to explore the clinicopathological features, treatment, and prognosis of ITC and thereby provide a reference for the diagnosis and treatment of the disease.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
September 2018
To explore the relationship between telomere length changes and age, and to provide data and reference for further study of geriatric medical problems. Methods: The healthy people over 20 years old were chosen as subject from several hospitals by random sampling method, and their peripheral blood samples were collected. The relative length of telomere was detected by quantitative real-time PCR, and the relationship between age and telomere length was analyzed by statistical software.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
January 2018
To explore the distribution of psychological aging in healthy population and its relationship with telomere length in peripheral blood leukocyte, and to provide reference for aging evaluation. Methods: Stratified random samples were obtained according to age and they were divided into 9 age groups. The age-related psychological information were collected from healthy people by using the self-made scale.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
July 2018
To investigate the ageing status for male population aged or over 20 years old in urban communities, clarifying their distribution characteristics and rules, and to provide reference for aging research. Methods: A total of 1 120 men aged or over 20 years old in Nanchang were obtained by stratified sampling, and the aging scale was measured in 9 groups. The distribution characteristics of aging scores were analyzed by normality test, variance analysis, and linear correlation.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
November 2017
To build a social aging scale for healthy people, and get the accuracy and feasibility of the scale to judge the aging of healthy people on the basis of the empirical research. Methods: Stratified random sampling was conducted according to the nine different age groups, and the age-related social function information was collected for healthy people by using the scale, which was made in our own plant; the distribution of the score, the correlations between the score and age or telomere length were analyzed by statistical software. Results: A total of 2 297 subjects were collected for the analysis.
View Article and Find Full Text PDFDespite consistent evidence of a higher short-term risk of stroke mortality associated with ambient temperature, there are no findings on the association between extreme temperature and stroke. A total of 16,264 stroke hospital admissions were observed in three hospitals of Nanchang between 2008 and 2015. The case-crossover design was utilized for our study.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
April 2017
To construct a psychological aging scale, and to provide a tool and indexes for scientific evaluation on aging. Methods: The age-related psychological items were collected through literature screening and expert interview. The importance, feasibilityand the degree of authority for the psychological index system were graded by two rounds of Delphi method.
View Article and Find Full Text PDFZhong Nan Da Xue Xue Bao Yi Xue Ban
April 2016
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
March 2016
Objective: To analyze the effective treatment of deep neck infection in children.
Methods: Thirty-three cases of deep neck infection treated from September 2005 to May 2015 were retrospectively reviewed. To observe the effect of antibiotics and surgical drainage.
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
October 2015
Objective: To investigate the clinical diagnosis, treatment and prognosis of carcinoma showing thymus-like differentiation (CASTLE) of thyroid, and to improve the understanding of CASTLE.
Method: In 6 patients with CASTLE, we performed region VI lymph node dissection, the lesion resection of thyroid lobe and isthmus. After the operation, except one case of 68 years old patient, the rest patients were treated with radiotherapy 60 Gy in anterior cervical region after third week of operation and 5 courses of chemotherapy with cisplatin, each interval of 2 weeks.
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
April 2015
Background: Recently, it has been found that diabetes patients have a higher incidence of colorectal cancer than the general population, but epidemiological studies examining a potential relationship between the two have produced inconsistent conclusions. Thus, we set out to perform a meta-analysis of cohort studies to evaluate the association between diabetes and colorectal cancer.
Materials And Methods: Using "diabetes," "colorectal cancer," and associated key words, we performed a systematic review of published cohort studies in multiple databases, including MEDLINE, EMBASE, ISI Web of Knowledge databases, OVID, CNKI, CBMD ISC, WANFANG, and CQVIP.
Context: The association between 3-hydroxy-3methylglutaryl coenzyme A (HMG-CoA) reductase inhibitors (statins) and bone mineral density (BMD) is controversial because of conflicting findings from previous studies.
Objective And Design: The purpose of the present study was to evaluate the effect of statins on BMD reported in randomized and non-randomized controlled trials. We searched PubMed and Embase, using text, medical subject headings (MeSH) and keywords "bone mineral density" and "statins" or "HMG-CoA reductase inhibitors".
Alzheimer's disease patients diagnosed with the Chinese Classification of Mental Disorders diagnostic criteria were selected from the community through on-site sampling. Levels of macro and trace elements were measured in blood samples using an atomic absorption method, and neurotransmitters were measured using a radioimmunoassay method. SPSS 13.
View Article and Find Full Text PDFZhonghua Wei Chang Wai Ke Za Zhi
December 2011
Objective: To evaluate the association between metabolic syndrome and colorectal cancer.
Methods: A multicenter case-control study was conducted. A total of 1506 cases of colorectal cancer (936 males and 570 females), whose clinical data were complete and aged from 30 to 75, were collected in the Third, First and Second People's Hospital of Jingdezhen between 2000 and 2009.
Zhonghua Liu Xing Bing Xue Za Zhi
April 2009
Objective: Understanding the risk factors of female infertility among child-bearing aged women, in Nanchang area.
Methods: A hospital-based matched case-control study was carried out in Nanchang. Matched by age (+/- 2 years old), 383 pairs of cases and controls were recruited and studied.
Objective: To explore whether there exists coincidence of the most appearing time of clinical features of liver cancer at different longitude and latitude, according to the law of field equation and the theory of warpage of space time by Einstein.
Methods: Three regions with different longitude and latitude were selected randomly and sampled. There were 36 items altogether, including 12 clinical items, which were used to imitate the yearly cycle cosine curve.