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科技创新投入、教育水平与区域经济增长——基于空间计量模型分析

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长春理工大学学报（社会科学版） 2024年第2期37卷 102-108页

作者：张浩浩贾敬全淮北师范大学经济与管理学院安徽淮北235000

基于我国2007—2019年30个省级区域的面板数据,建立空间计量模型分析科技创新投入和教育水平对于区域经济增长的影响。结果表明:东南沿海地区发展较好,并且表现为经济发达省份被其他经济发达的省份包围的分布态势;西部地区大多为经济欠... 详细信息

基于我国2007—2019年30个省级区域的面板数据,建立空间计量模型分析科技创新投入和教育水平对于区域经济增长的影响。结果表明:东南沿海地区发展较好,并且表现为经济发达省份被其他经济发达的省份包围的分布态势;西部地区大多为经济欠发达省份,并且周围的省份经济发展也较差。通过分析得出科技创新投入对区域经济增长存在显著的正向溢出效应,但是教育水平对区域经济增长的溢出效应不显著。在中国经济进入高质量发展阶段,需要加强省份间经济合作,明确政府自身定位,提高科技创新投入水平和科技创新成果转化能力,推进教育水平综合提升。

关键词：科技创新投入教育水平溢出效应

measurement,associations,patterns,and promotion:Unveiling vital areas in physical activity epidemiology

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Journal of Sport and Health Science 2024年第5期13卷 605-607页

作者： Kara m.Whitaker Guest editor michael J.Lamonte Department of Health&Human Physiology University of IowaIowa CityIA 52242USA Department of Epidemiology and Environmental Health University of BuffaloBuffaloNY 14214 USA

Physical activity(PA)epidemiology first emerged as a new field of study around the 1950s with publication of seminal investigations on London civil servants1 and has continued to evolve as a scientific discipline to present *** subdiscipline of epidemiology studies the frequencies,distributions,and dynamics of PA and its impact on human health,morbidity,and *** over the past 75 years has demonstrated numerous health benefits of *** on these research findings,the World Health organization recommends adults aged 18-64 years engage in at least 150-300 min of moderate-intensity aerobic PA per week,or at least 75-150 min of vigorous-intensity aerobic PA per week,or a combination of both intensities.

关键词： epidemiology promotion continued

基于PageRank,HITS和SALSA算法的学术论文评价

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情报杂志 2015年第6期34卷 48-54页

作者：苏成 Hee-sop KIm 中国科学技术信息研究所情报方法研究中心北京100038 韩国庆北大学图书馆与信息科学系

科技论文评价对于科研工作者的评价以及相关科研管理工作至关重要。利用PageRank、HITS和SALSA算法进行了"图书馆与信息科学"领域的论文排序实验,比较了不同算法排序列表前100共同论文数和Spearman相关系数,讨论了不同算法特性对排序结... 详细信息

科技论文评价对于科研工作者的评价以及相关科研管理工作至关重要。利用PageRank、HITS和SALSA算法进行了"图书馆与信息科学"领域的论文排序实验,比较了不同算法排序列表前100共同论文数和Spearman相关系数,讨论了不同算法特性对排序结果的影响,最后讨论了不同算法的优缺点、适用范围。

关键词： PageRank HITS SALSA学术论文评价

Biodegradable zinc-iron alloys: Complex study of corrosion behavior,mechanical properties and hemocompatibility

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Progress in Natural Science:materials International 2021年第2期31卷 279-287页

作者： Z.orságová Králová R.Gorejová R.orin?aková m.Petra?ková A.orin?ak m.Kupková m.Hrubov?a?ková T.sop?ák m.Baláz? I.maska?ová A.Kovalc?íková K.Kova? Department of Physical Chemistry Faculty of Science Pavol Jozef ?afa?rik University in Ko?ice Institute of materials Research Slovak Academy of Sciences Institute of Geotechnics Slovak Academy of Sciences University of Veterinary medicine and Pharmacy in Ko?ice Department of Animal Nutrition Dietetics and Animal Breeding

Zn-Fe alloys have been extensively investigated in this study with a view to their application as biodegradable bone implants. Biogenic element zinc is a very appropriate metal because of the ideal degradation rate compared to those of mg and Fe. Studied alloys were made by compressing metallic powders in a content ratio of 100% Zn,Zn-1% Fe, Zn-2% Fe, Zn-5% Fe and Zn-10% Fe and sintering at 350°C for 1 h. Prepared samples were examined by optical microscopy, SEm and XRD. Corrosion behavior, mechanical testing and hemocompatibility were observed subsequently. The electrochemical performance of such materials was studied in the simulated body fluids. The enhanced corrosion rate was observed for all samples after iron addition due to the micro-galvanic effect between the pure Zn and Zn;Fe intermetallic phase. The corrosion rate of the Zn-5% Fe alloyed sample was more than 20-times higher（2.89 mmpy） compared to the pure Zn. However, alloying with more than 5 wt %of iron diminished the mechanical performance of the material. Therefore, the performed mechanical and hemocompatibility tests showed acceptable biocompatibility of zinc and Zn-1% Fe and Zn-2% Fe samples.

关键词： Biodegradable materials Zinc Iron Alloy Corrosion behavior Hemocompatibility

Fine-scale analysis reveals a potential influence of forest management on the spatial genetic structure of Eremanthus erythropappus

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Journal of Forestry Research 2021年第4期32卷 1567-1578页

作者： Lucas Fernandes Rocha Natália Ribeiro de Paula Dulcinéia De Carvalho Department of Forest Science Federal University of Lavras(UFLA)Av.Doutor Sylvio Menicucci1001 Aquental SolLavrasMinas Gerais State 37200-000Brazil Department of Forest Science College of Agricultural Sciences(FCA/UNESP)São Paulo State UniversityAv.Universitária3780Altos do ParaísoBotucatuSão Paulo State 18610-034Brazil

Forest management may have significant effects on forest connectivity and natural population *** old-growth single trees may also change natural patterns of genetic variation and spatial genetic *** study evaluated the impacts of forest management using a silvicultural system of seed trees on the genetic diversity and spatial genetic structure of Eremanthus erythropappus(DC.)macLeish.A complete survey of 275 trees on four plots was undertaken out to compare the genetic variation of a managed stand with an unmanaged *** genotyped all adult and juvenile individuals 60 months after the management and compared the genetic diversity and the spatial genetic structure *** diversity was considered high because of an efficient gene flow between *** were no genetic differences between stands and no evidence of *** clustering identified a single population(K=1),indicating no genetic differentiation between managed and unmanaged *** and juvenile individuals of the unmanaged stand were more geographically structured than individuals from the managed *** was a tendency of coancestry among juveniles at the first class of distance of the managed stand,suggesting a drift of genetic structure possibly caused by *** early responses to management on genetic diversity and stand structure is a first step to ensuring the effectiveness of conservation practices of tree *** sustainability of forest management of *** on genetic diversity,and more accurately,on spatial genetic structure needs evaluation over time to promote effective conservation of the population size and genetic variability.

关键词： Genetic diversity microsatellite markers Gene flow Silvicultural management Brazilian Cerrado

Hepatic adenomatosis in glycogen storage disease:Radio-pathological correlation

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Hepatobiliary & Pancreatic Diseases International 2021年第6期20卷 579-581页

作者： João m Louro Ana m Alves JoséR Brandão manuela França Department of Radiology Centro Hospitalar Universitário do Porto EPEPorto 4099-001Portugal Department of Anatomical Pathology Centro Hospitalar Universitário do Porto EPEPorto 4099-001Portugal

Glycogen storage disease type I(GSD type I),also known as von Gierke disease,is an autosomal recessive disorder of the glycogen metabolism pathway,caused by a deficiency of glucose-6-phosphatase(GSD type ia)or glucose... 详细信息

关键词： 1] metabolism trans

Nonalcoholic fatty liver disease in asymptomatic Brazilian adolescents

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World Journal of Gastroenterology 2009年第4期15卷 473-477页

作者： Raquel Rocha Helma Pinchemel Cotrim Almir Galvo Vieira Bitencourt Daniel Batista Valente Barbosa Adméia Souza Santos Alessandro de moura Almeida Bruno Cunha Isabel Guimares Postgraduate Course in medicine and Health Federal University of BahiaSchool of Medicine Federal University of Bahia School of Medicine NASH Project University Hospital Professor Edgard SantosFederal University of Bahia

AIm： To evaluate the prevalence and clinical characteristics of Nonalcoholic fatty liver disease （NAFLD） among asymptomatic Brazilian adolescents. mETHoDS： Transversal observational study included asymptomatic adolescents with central obesity from private and public schools in Salvador-Bahia, northeastern Brazil. The children answered a questionnaire that in- cluded age, gender, race, and medical history, and were submitted to a complete physical exam and abdominal ultrasound. Biochemical exams included： ALT, AST, GGT, C reactive protein （CRP）, fasting glucose, insulin, cholesterol and triglycerides. Criteria for NAFLD included： the presence of steatosis in ultrasound and/or high level of ALT, negative or occasional historic of intake of alcohol （4 140 g/wk）, negative investigation for hepatitis A, B, C, auto-immune hepatitis, Wilson disease and ***： From october, 2005 to october, 2006, the study included 1801 subjects between 11 and 18 years of age and a mean age of 13.7± 2.0 years. one hun- dred ninety-nine had central obesity. The prevalence of NAFLD was 2.3%, most of whom were male and white. Insulin resistance （IR） was observed in 22.9% of them and had positive correlations with ALT and GGT （P 〈 0.05）. Elevated CRP was observed in 6.9% of the cases; however, it was not associated with WC, IR or liver enzymes. CoNCLUSIoN： The prevalence of NAFLD in Brazilian adolescents was low. The ethnicity may have influence this frequency in the population studied, which had a large proportion of African descendents.

关键词： Nonalcoholic fatty liver disease Insulinresistance Central obesity Ethnicity Adolescents

Targeting hepatic ceruloplasmin mitigates nonalcoholic steatohepatitis by modulating bile acid metabolism

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Journal of molecular Cell Biology 2023年第9期15卷 53-68页

作者： Quanxin Jiang Ning Wang Sĳia Lu Jie Xiong Yanmei Yuan Junli Liu Suzhen Chen Shanghai Diabetes Institute Department of Endocrinology and MetabolismShanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200233China

Nonalcoholic steatohepatitis(NASH)is a condition that progresses from nonalcoholic fatty liver disease(NAFLD)and is characterized by hepatic fat accumulation,inflammation,and *** has the potential to develop into cirrhosis and liver cancer,and currently no effective pharmacological treatment is *** this study,we investigate the therapeutic potential of targeting ceruloplasmin(Cp),a copper-containing protein predominantly secreted by hepatocytes,for treating *** result show that hepatic Cp is remarkedly upregulated in individuals with NASH and the mouse NASH ***-specific Cp ablation effectively attenuates the onset of dietary-induced NASH by decreasing lipid accumulation,curbing inflammation,mitigating fibrosis,and ameliorating liver *** employing transcriptomics and metabolomics approaches,we have discovered that hepatic deletion of Cp brings about remarkable restoration of bile acid(BA)metabolism during *** deletion of Cp effectively remodels BA metabolism by upregulating Cyp7a1 and Cyp8b1,which subsequently leads to enhanced BA synthesis and notable alterations in BA *** conclusion,our studies elucidate the crucial involvement of Cp in NASH,highlighting its significance as a promising therapeutic target for the treatment of this disease.

关键词： ceruloplasmin nonalcoholic steatohepatitis bile acid inflammation fibrosis

A soil quality index for subtropical sandy soils under different Eucalyptus harvest residue managements

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Journal of Forestry Research 2023年第1期34卷 243-255页

作者： Jackson Freitas Brilhante de Sao José maurício Roberto Cherubin Luciano Kayser Vargas Bruno Brito Lisboa Josiléia Acordi Zanatta Elias Frank Araújo Cimélio Bayer Department of Agricultural Research and Diagnosis Agriculture SecretariatLivestock and Rural Development of Rio Grande do Sul.570Goncalves Dias St.Porto AlegreRio Grande do SulBrazil Department of Soil Science “Luiz de Queiroz”College of Agriculture/University of Sao PauloPadua Dias Ave 11PiracicabaSao PauloBrazil Embrapa Floretas Estrada da Ribeirakm 111ColomboParanáBrazil CmPC Celulose RiograndenseSao Geraldo St.GuaíbaRio Grande do Sul 1680Brazil Department of Soil Science Federal University of Rio Grande do SulPorto AlegreBrazil

Eucalyptus harvest residues are attractive energy production resources for the forestry ***,their removal can have adverse impacts on soil quality and forest productivity,especially in sandy *** this study,we assessed the effects of Eucalyptus harvest residue managements with variable intensity on forest productivity and on physical,chemical,and biological indicators of the soil *** experiment was conducted in a Quartzipsamment(33 g kg-1clay)planted with Eucalyptus saligna in Barra do Ribeiro in southern *** the Eucalyptus was planted,residues from the previous rotation were subjected to five different management treatments:(1)FRm,in which all forest residues(bark,branches,leaves,and litter)were allowed to remain on the soil and only trunk wood was removed;(2)FRmB,in which was identical to FRm except that bark was also removed;(3)FRmBr,in which only trunk wood and branches were removed;(4)FRR,which involved removing all types of residues(bark,branches,leaves,and litter);and,(5)FRRs,in which all forest residues from the previous rotation were removed,and leaves and branches from the new plantation were prevented from falling onto the soil surface using a shade *** years after planting,soil samples were collected at four different depths(0-2.5,2.5-5,5-10,and 10-20 cm)to determine 17 soil chemical,physical,and biological *** results were combined into a soil quality index(SQI)using the principal component analysis *** SQI reduced by 30%,in the 0-20 cm layer,due to removal of harvest residues from the previous rotation,and collection of litter before it falls on the *** main drivers of SQI reduction were the principal components associated with soil organic matter and biological ***,the SQI was positively linearly related to tree height at Po tree diameter at breast height at P=*** adverse impact on soil quality and forest productivity in our study indicates that removal

关键词： Forest residues Soil health Soil organic carbon microbial biomass Soil conservation