78 research outputs found
Rural Labor Absorption Efficiency in Urban Areas under Different Urbanization Patterns and Industrial Structures: The Case of China
No full textIn this paper, we use Data Envelopment Analysis (DEA) to estimate how well China’s urban areas absorb migrant workers under the interaction of urbanization and industrialization. We applied an output-oriented BCC model to evaluate provincial and regional rural labor absorption efficiency in mainland China. It appears that 4 out of 31 provinces and municipals are efficient, and 2 out of 8 economic regions are efficient in absorbing migrant workers. In the southern and eastern parts of China, urban labor absorption efficiency is higher compared with the western and northern parts of China. Different urbanization patterns and industrial development strategies should be adopted in different economic areas to enhance labor absorption ability in these areas. Urban areas in many parts of China still have potential to accommodate rural migrant workers. The inter-regional flow of production factors would affect urban labor absorption efficiency.rural labor absorption in urban areas, urbanization, industry structure, DEA
Wang fa ding sheng zhu fa jing /
No full textOn double leaves, oriental style.Mode of access: Internet
Therapeutic Implications of mTOR Inhibitors in the Treatment of Gastric Cancer
No full textGastric cancer remains one of the most common types of cancer worldwide, and most patients present with advanced disease. Sixty percent of these patients eventually relapse after curative surgical resection, and combination chemotherapy regimens only provide limited survival benefits. Mammalian target of rapamycin (mTOR) is a new target of cancer therapies. Preclinical data suggest that the suppression of the mTOR pathway inhibits the progression of gastric cancer in vitro and in animal models. In clinical trials, the mTOR inhibitor, everolimus, was well tolerated in phase I/II studies on patients with metastatic gastric cancer. The efficacy of everolimus was promising in a phase II clinical trial, but in a recently published phase III clinical trial everolimus monotherapy do not significantly improve the overall survival of patients with advanced gastric cancer who had been previously treated with one or two lines of systemic chemotherapy. Phosphoinositide 3-kinase/mTOR dual inhibitors have not yet entered early-stage clinical trials in patients with advanced gastric cancer. Further studies are needed to establish the role of mTOR inhibitors for the treatment of gastric cancer.OncologySCI(E)6ARTICLE2121-1251
Study on the Dynamic Response of a Heaving Buoy with an Accumulator-Integrated Hydraulic Power Take-Off System Under Dam-Break Flow Using a Modified Moving Particle Semi-Implicit Method
No full textThe moving particle semi-implicit (MPS) method is employed to investigate the dynamic response of a wave energy converter (WEC) buoy subjected to dam-break flows. The buoy is connected to a hydraulic power take-off (PTO) system equipped with an accumulator, enabling it to capture wave energy. First, the MPS method is validated by comparison with experimental results, demonstrating its accuracy in simulating violent interactions between dam-break flows and the buoy. Subsequently, numerical simulations are conducted to analyze the influence of different PTO forces and buoy positions on the heave motion, fluid forces and captured power of the buoy. The results indicate that PTO force exerts a significant influence on heave motion, captured power and vertical fluid force while having a relatively minor effect on the horizontal fluid force. In addition, the maximum power that the buoy can capture increases as its distance from the wall decreases. Notably, the maximum average captured power of the buoy located near a wall can be five times higher than that of a buoy far away from the wall, indicating that a vertical wall can significantly increase the efficiency of nearshore WEC devices. These findings could provide valuable insights for the design, optimization and operation of nearshore WEC devices
New constraints for slip rates along the Altyn Tagh fault, northwestern Tibet Plateau
No full textHigh-resolution UAV data (DEM and DOM
Lithology classification integrating multi-source remote sensing data after vegetation suppression: a case study from Inner Mongolia Autonomous Region, China
No full textReducing vegetation disturbance in remote sensing images enhances lithology classification accuracy. This study utilized Gaofen-2 (GF-2), Sentinel-2A, Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), and Gaofen-3 (GF-3) satellite images of Duolun County, Inner Mongolia. A vegetation coverage-based image filtering method was introduced to minimize vegetation interference in multispectral images, while an improved water cloud model mitigated interference in SAR backscattering images. Subsequently, a 63-dimensional feature sequence was extracted from the vegetation-suppressed images. A comparison experiment using the Support Vector Machine (SVM) classifier, both before and after vegetation suppression, was conducted. Results indicated that vegetation suppression improved the Overall Accuracy (OA) by 2.05% and the Kappa coefficient by 0.02. Specifically, the OA and Kappa coefficient for the 63-dimensional features post-suppression reached 91.52% and 0.90, respectively
Effect of repeated freezing-thawing on the Achilles tendon of rabbits
No full textThe increased use of allograft tissue in the reconstruction of anterior cruciate ligament has brought more focus to the effect of storage and treatment on allograft. The purpose of this study was to observe the effect of histology and biomechanics on Achilles tendon in rabbits through repeated freezing-thawing before allograft tendon transplantation. Rabbit Achilles tendons were harvested and processed according to the manufacture's protocol of tissue bank, and freezing-thawing was repeated three times (group 1) and ten times (group 2). Those received only one cycle were used as controls. Then, tendons in each group were selected randomly to make for histological observations and biomechanics test. Histological observation showed that the following changes happened as the number of freezing-thawing increased: the arrangement of tendon bundles and collagen fibrils became disordered until ruptured, cells disrupted and apparent gaps appeared between tendon bundle because the formation of ice crystals. There were significant differences between the experimental and control groups in the values of maximum load, energy of maximum load and maximum stress, whereas no significant differences existed in other values such as stiffness, maximum strain, elastic modulus, and energy density. Therefore, repeated freezing-thawing had histological and biomechanical effect on Achilles tendon in rabbits before allograft tendon transplantation. This indicates that cautions should be taken in the repeated freezing-thawing preparation of allograft tendons in clinical application.http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000290727400029&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701OrthopedicsSport SciencesSurgerySCI(E)PubMed5ARTICLE61028-10341
Simultaneous detection of 15 antibiotic growth promoters in bovine muscle, blood and urine by UPLC-MS/MS
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