检索结果-南通市图书馆

劳动力成本上升削弱了中国出口优势吗——基于不同贸易方式和地区的比较研究

在线全文

学校读者我要写书评

暂无评论

财贸研究 2015年第4期26卷 47-56页

作者：马飒南通大学商学院江苏南通226019

基于中国与周边国家制造业劳动力成本比较,利用中国31个省市面板数据,考察劳动力成本上升对中国不同贸易方式和地区出口优势的影响。结果显示,劳动力成本上升一定程度上削弱了中国的出口优势,但对不同贸易方式和地区的作用存在差异。就... 详细信息

基于中国与周边国家制造业劳动力成本比较,利用中国31个省市面板数据,考察劳动力成本上升对中国不同贸易方式和地区出口优势的影响。结果显示,劳动力成本上升一定程度上削弱了中国的出口优势,但对不同贸易方式和地区的作用存在差异。就整体样本而言,劳动力成本上升对中国一般贸易出口没有显著影响,但对加工贸易出口则具有显著负向作用,且作用力自2005年后逐年增加。分地区样本来看:就一般贸易出口而言,东部和中西部地区劳动力成本上升的负面影响均不显著;对于加工贸易出口,东部地区受劳动力成本上升的负面影响显著,而中西部地区则影响不显著;就两种贸易方式而言,劳动力成本在所有解释变量中对出口的作用力均为最小。

关键词：劳动力成本出口加工贸易一般贸易

Self-attention Guidance Based Crowd Localization and Counting

在线全文

学校读者我要写书评

暂无评论

machine Intelligence Research 2024年第5期21卷 966-982页

作者： Zhouzhou ma Guanghua Gu Wenrui Zhao School of Information Science and Engineering Yanshan UniversityQinhuangdao066000China Hebei Key Laboratory of Information Transmission and Signal Processing Qinhuangdao066000China

Most existing studies on crowd analysis are limited to the level of counting,which cannot provide the exact location of *** paper proposes a self-attention guidance based crowd localization and counting network(sa-CLCN),which can simultaneously locate and count *** take the form of object detection,using the original point annotations of crowd datasets as supervision to train the ***,the center point coordinate of each head as well as the number of crowds are ***,to cope with the spatial and positional variations of the crowd,the proposed method introduces transformer to construct a globallocal feature extractor(GLfE)together with the convolutional *** establishes the near-to-far dependency between elements so that the global context and local detail features of the crowd image can be extracted ***,this paper designs a pyramid feature fusion module(PffM)to fuse the global and local information from high level to low level to obtain a multiscale feature *** downstream tasks,this paper predicts candidate point offsets and confidence scores by a simple regression header and classification *** addition,the Hungarian algorithm is used to match the predicted point set and the labelled point set to facilitate the calculation of *** proposed network avoids the errors or higher costs associated with using traditional density maps or bounding box ***,we have conducted extensive experiments on several crowd datasets,and the proposed method has produced competitive results in both counting and localization.

关键词： Crowd localization crowd counting transformer point supervision object detection

Decreasing recurrent bowel obstructions,improving quality of life with physiotherapy:Controlled study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2018年第19期24卷 2108-2119页

作者： Amanda D Rice Kimberley Patterson Evette D Reed Belinda f Wurn Kristen Robles Bernhard Klingenberg Leonard B Weinstock Janey sa Pratt C Richard King III Lawrence J Wurn Department of Internal Medicine College of Medicine-PhoenixUniversity of ArizonaPhoenixAZ 85004United States Clear Passage Therapies GainesvilleFL 32606United States Department of mathematics and Statistics Williams CollegeWilliamstownMA 01267United States Clinical Medicine and Surgery Washington University School of MedicineSpecialists in GastroenterologyLLCSt.LouisMO 63141United States Department of Surgery Stanford University School of MedicinePalo AltoCA 94035United States College of Medicine University of FloridaGainesvilleFL 32607United States

AIM To compare(1) quality of life and(2) rate of recurrent small bowel obstructions(SBO) for patients treated with novel manual physiotherapy vs no treatment. METHODS One hundred and three subjects(age 19-89) with a history of recurrent adhesive SBO were treated with a.ma.ual physiotherapy called the Clear Passage Approach(CPA) which focused on decreasing adhesive crosslinking in abdominopelvic viscera. Pre-and post-therapy data measured recurring obstructions and quality of life, using a validated test sent 90 d after therapy. Results were compared to 136 untreated control subjects who underwent the same measurements for subjects who did not receive any therapy, which is the normal course for patients with recurring SBO. Comparison of the groups allowed us to assess changes when the physiotherapy was added as an adjunct treatment for patients with recurring *** Despite histories of more prior hospitalizations, obstructions, surgeries, and years impacted by bowel issues, the 103 CPA-treated subjects reported a significantly lower rate of repeat SBO than 136 untreated controls(total obstructions P = 0.0003; partial obstructions P = 0.0076). Subjects treated with the therapy demonstrated significant improvements in five of six total domains in the validated Small Bowel Obstruction Questionnaire(SBO-Q). Domains of diet, pain, gastrointestinal symptoms, quality of life(QOL) and pain severity when compared to post CPA treatment were significantly improved(P main was not changed in the CPA treated group(P = 0.176).CONCLUSION CPA physical therapy was effective for patients with adhesive SBO with significantly lower recurrence rate, improvement in reported symptoms and overall quality of life of subjects.

关键词： Clear passage approach manual therapy Physical therapy Small bowel obstructions Adhesions Physiotherapy Alternative therapy

In situ nanomechanical characterization of hydrogen effects on nickel-based alloy 725 under different metallurgical conditions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of materials Science & Technology 2023年第4期135卷 156-169页

作者： Xu Lu Yan ma Ding Peng Roy Johnsen Dong Wang Department of Mechanical and Industrial Engineering Norwegian University of Science and Technology(NTNU)7491 TrondheimNorway max-Planck-Institut für Eisenforschung GmbH 40237 DüsseldorfGermany Department of Physics Norwegian University of Science and Technology(NTNU)7491 TrondheimNorway

The effect of hydrogen on the surface morphology and nanomechanical properties of Ni-based Alloy 725 under solution-annealed(sa)and precipitation-hardened(API)conditions was thoroughly *** investigation involved in situ nanoindentation testing,microscopy characterization,statistical analy-sis,and numerical simulation *** results showed the distinctive effects of hydrogen on the pop-in and hardness in the sa and API *** the sa sample,hydrogen mainly dissolved as solid solute in the matrix,causing enhanced lattice friction on the dislocation motion and increasing the in-ternal stress via lattice ***,an enhanced hardness,a reduced pop-in width/load ratio,and numerous surface steps were detected in the presence of *** the API sample,the strengtheningγ″phases were the stress concentrators,and the dislocations nucleated heterogeneously,demonstrating indistinctive pop-in ***,the precipitates in the API sample affected the trapping be-havior of hydrogen,thereby resulting in the hardness change,which reflected the competition between solution hardening in the matrix and vacancy softening mechanism in precipitates.

关键词： Hydrogen Nickel-based alloy In situ nanoindentation Precipitates Dislocation nucleation Hardness

数字技术冲击下的全球经济治理与中国的战略选择

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

经济学家 2022年第5期 48-57页

作者：马飒黄建锋南通大学经济与管理学院南通大学江苏长江经济带研究院

数据跨国流动已成为数字时代世界经济运行的重要微观基础,数字技术改变了生产方式,从而引发国际产业分工格局重塑与国际贸易新趋势。在数字技术冲击下,全球经济治理的客体、手段及主体的内涵发生了深刻变化,全球经济治理面临多重现实困... 详细信息

数据跨国流动已成为数字时代世界经济运行的重要微观基础,数字技术改变了生产方式,从而引发国际产业分工格局重塑与国际贸易新趋势。在数字技术冲击下,全球经济治理的客体、手段及主体的内涵发生了深刻变化,全球经济治理面临多重现实困境:治理理念难以形成共识,有效的多边数字经济治理框架仍有待探索,现有多边经济治理机制改革滞后。重塑全球经济治理体系已成为数字时代世界经济发展的客观需求。中国应结合自身在国际权力结构中的相对地位以及国际环境的深刻变化作出相应战略选择。

关键词：数字技术全球经济治理世界经济战略选择

Soil Thermal Diffusivity of a Gleyic Solonetz Soil Estimated by Different Methods in the Brazilian Pantanal

在线全文

学校读者我要写书评

暂无评论

Open Journal of Soil Science 2013年第1期3卷 15-22页

作者： Victor H. M. Danelichen marcelo S. Biudes maísa C. Souza Nadja G. machado Leone f. A. Curado José S. Nogueira Postgraduate Program in Environmental Physics Physics Institute Federal University of Mato Grosso (UFMT) Cuiaba Brazil

The soil temperature is an important microclimatic factor due to the interactions between soil and plant, and the energy exchange with the atmosphere. The soil energy exchange is affected by the incident solar radiation, type of coverage and mainly by the soil thermal properties. Among the soil thermal properties, the soil thermal diffusivity is highlighted because it affects the soil temperature profile and soil heat flux transport and distribution. Thus, the aim of this study was to evaluate different estimates of soil thermal diffusivity of a Gleyic Solonetz soil in the Brazilian Pantanal. The soil thermal diffusivity was determined by the amplitude, logarithmic, arctangent and the phase methods between 0.01 and 0.03 m, 0.01 and 0.07 m and 0.01 and 0.15 m depth. The soil thermal diffusivity estimated by the four methods showed significant differences and varied over the study period as a function of volumetric soil water content. The soil thermal diffusivity estimated by logarithmic methodshowed better performance at different depths, followed by the method of phase.

关键词： Water Content Monodominantforest Soil Thermal Properties Soil Temperature Profile

Overexpression of auxin/indole-3-acetic acid gene MdIAA24 enhances Glomerella leaf spot resistance in apple(malus domestica)

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Horticultural Plant Journal 2024年第1期10卷 15-24页

作者： Qian Wang Dong Huang Wenyan Tu fengwang ma Changhai Liu State Key Laboratory of Crop Stress Biology for Arid Areas/Shaanxi Key Laboratory of Apple College of HorticultureNorthwest A&F UniversityYanglingShaanxi 712100China

Auxin is throughout the entire life process of plants and is involved in the crosstalk with other hormones,yet its role in apple disease resistance remains *** this study,we investigated the function of auxin/indole-3-acetic acid(IAA)gene Md IAA24 overexpression in enhancing apple resistance to Glomerella leaf spot(GLS)caused by Colletotrichum fructicola(Cf).Analysis revealed that,upon Cf infection,35S::Md IAA24 plants exhibited enhanced superoxide dismutase(SOD)and peroxidase(POD)activity,as well as a greater amount of glutathione(reduced form)and ascorbic acid accumulation,resulting in less H_(2)O_(2)and superoxide anion(O_(2)^(-))in apple ***,35S::Md IAA24 plants produced more protocatechuic acid,proanthocyanidins B1,proanthocyanidins B2 and chlorogenic acid when infected with *** Cf infection,35S::Md IAA24 plants presented lower levels of IAA and jasmonic acid(JA),but higher levels of salicylic acid(sa),along with the expression of related *** overexpression of Md IAA24 was observed to enhance the activity of chitinase andβ-1,3-glucanase in Cfinfected *** results indicated the ability of Md IAA24 to regulate the crosstalk between IAA,JA and sa,and to improve reactive oxygen species(ROS)scavenging and defense-related enzymes *** jointly contributed to GLS resistance in apple.

关键词： Apple MdIAA24 Glomerella leaf spot(GLS) Antioxidant capacity Auxin salicylic acid Jasmonic acid

Rb Protein is Essential to the Senescence-Associated Heterochromatic foci formation Induced by HMGA2 in Primary WI38 Cells

在线全文

学校读者我要写书评

暂无评论

Journal of Genetics and Genomics 2013年第8期40卷 391-398页

作者： Xi Shi Baoqing Tian Lingxia Liu Yanyan Gao Chi ma Namusamba Mwichie Wenlong ma Liping Han Baiqu Huang Jun Lu Yu Zhang The Key Laboratory of Molecular Epigenetics of the Ministry of Education Northeast Normal University The Institute of Genetics and Cytology Northeast Normal University School of Life Sciences Changchun Normal University

Cellular senescence is an irreversible form of cell cycle arrest that provides a barrier to neoplastic transformation. The integrity of the Rb （Retinoblastoma） pathway is necessary for the formation of the senescence-associated heterochromatin foci （saHf） that offers a molecular basis for the stability of the senescent state. Surprisingly, although high mobility group A2 protein （HMGA2） can promote tumorigenesis and inhibit Rb function in tumor cells, high-level expression of HMGA2 is sufficient to induce saHf formation in primary cells. It therefore becomes significant to determine whether Rb protein is necessary in HMGA2-induced saHf formation. In this study, we established the cellular senescence and saHf assembly W138 cell model by ectopic expression of HMGA2, in which typical senescent markers were seen, including notable upregulation of p53, p21 and p16, and elevated sa-[3-galactosidase staining together with downregulation of E2f target genes. We then showed that the Rb pathway inhibitor E7 protein was able to partly abolish the ability of saHf formation alter HMGA2 expression in W138 cells, indicating that Rb is a crucial factor for HMGA2-induced saHf formation. However. Rb depletion did not completely rescue the cell growth arrest induced by HMGA2, suggesting that Rb is not an exclusive pathway for HMGA2-induced senescence in W138 cells.

关键词： HMGA2: saHf Cellular senescence Rb

The SmNPR4-SmTGA5 module regulates sa-mediated phenolic acid biosynthesis in salvia miltiorrhiza hairy roots

在线全文

学校读者我要写书评

暂无评论

Horticulture Research 2023年第5期10卷 260-270页

作者： Meiling Ding Bin Zhang Shuo Zhang RongRong Hao Yu Xia Pengda.ma.Juane Dong College of Life Sciences Northwest A&F UniversityYangling 712100China

Phenolic acids are the main bioactive compounds in salvia miltiorrhiza,which can be increased by salicylic acid(sa)***,the specific molecular mechanism remains *** nonexpresser of PR genes 1(NPR1)and its family members are essential components of the sa signaling ***,we report an NPR protein,SmNPR4,that showed strong expression in hairy root after sa treatment,acting as a negative moderator of sa-induced phenolic acid biosynthesis in ***(***).Moreover,a basic leucine zipper family transcription factor SmTGA5 was identified and was found to interact with ***5 activates the expression of phenolic acid biosynthesis gene SmTAT1 through binding to the as-1 ***,a series of biochemical assays and dual gene overexpression analysis demonstrated that the SmNPR4 significantly inhibited the function of SmTGA5,and sa can alleviate the inhibitory effect of SmNPR4 on ***,our results reveal the molecular mechanism of salicylic acid regulating phenolic acid biosynthesis in *** and provide new insights for sa signaling to regulate secondary metabolic biosynthesis.

关键词： element phenolic roots