Showing 281 - 300 results of 463 for search '"difference in difference"', query time: 0.10s Refine Results
  1. 281

    Measurement and spatiotemporal evolution characteristics of dietary diversity among Chinese residents by Guangyuan Qin, Miaomiao Li, Shiwen Quan

    Published 2025-01-01
    “…In terms of the trend of regional differences, whether overall differences, interregional differences, or intraregional differences, they all showed a shrinking trend. …”
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  2. 282

    The Impact of Ride-Hailing Services on Private Car Use in Urban Areas: An Examination in Chinese Cities by Jun Zhong, Yan Lin, Siqi Yang

    Published 2020-01-01
    “…Given this setting, our study applied a difference-in-differences method to analyze the impact of ride-hailing services on the use of private cars with balanced panel data from 109 prefecture-level cities in China from 2010 to 2016. …”
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  3. 283

    The role of intellectual property on Enterprise-led Industry-University-Research Institution cooperation: case of innovation awards in China by Lingzhi Chen, Yanyan Ma, Yutao Sun

    Published 2024-12-01
    “…Additionally, this paper further explores the impact of intellectual property demonstration cities (IPDC) policy on E-IUR cooperation using a difference-in-differences (DID) regression model. The study focuses on listed companies in Shanghai and Shenzhen from 2008 to 2020. …”
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  4. 284

    Walking and Hippocampal Formation Volume Changes: A Systematic Review by Mohamed Hesham Khalil

    Published 2025-01-01
    “…Future research is encouraged to explore the hippocampal subregional changes instead of focusing on total hippocampal volume, since the hippocampal formation is multicompartmental and subfields respond differently to different walking-related variables.…”
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  5. 285

    Comparison of plant species diversity, site index, and mean tree ring width values of different altitudinal zones in Turkish pine stands by Oğuzhan Erfidan, Serkan Özdemir

    Published 2024-12-01
    “…Our results showed that Shannon and Simpson diversity differ across different altitudinal zones, while no differences were observed in terms of site index and annual ring growth. …”
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  6. 286

    County green transformation: how does gross ecosystem product assessment promote common prosperity? by Kai-di Liu, Minghui Jin, Liang Cheng

    Published 2025-01-01
    “…To explore the influence of GEP assessment on the common prosperity of urban and rural regions, this study conducts a quasi-natural experiment using the staggered difference-in-differences model to examine data from 1946 districts and counties from 2012 to 2022. …”
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  7. 287

    A CADAVERIC STUDY OF THE BRANCHING PATTERN OF RIGHT CORONARY ARTERY IN PAKISTANI POPULATION by Qazi Waheedullah, Farah Deeba, Sadia Shaukat, Samina Zahir, Shazia Iftikhar, Zainab Rehman

    Published 2023-04-01
    “…Conclusions:   RCA manifest anatomical variations in branching pattern as reported in international literature and this variation is different in different populations of the world which indicates that postnatal development, along with differences based on geography and ethnicities might contribute to the modification of anatomical pattern of coronary arteries in humans.   …”
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  8. 288

    An ensemble multi-dimensional randomization network for intelligent recognition of tobacco baking stage by Panzhen Zhao, Songfeng Wang, Xianwei Hao, Zhisheng Wang, Jun Zou, Jie Ren, Yingpeng Dai

    Published 2025-01-01
    “…The effectiveness of MRNet lies in multi-scale hidden layer feature extraction, which can effectively enhance the expression ability of features to overcome the impact of differences between different environments on the tobacco baking stage. …”
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    Article
  9. 289

    Diverse Dynamic Behaviors and Firing Activities of the Modified Fractional-Order Hindmarsh–Rose Neuronal Model Induced by Fractional-Order by Xin Yang, GuangJun Zhang, XueRen Li, Dong Wang

    Published 2021-01-01
    “…In other words, the transition mode of periodic firing and chaotic firing induced by fractional-order is different under different external current stimulus. The two-dimensional colored diagram of firing patterns is also investigated. …”
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  10. 290

    Experimental Investigation of the Anchoring Effect of Two Different Types of Rock Bolts on Fractured Rock by Rongchao Xu, Hui Zhou

    Published 2019-01-01
    “…Besides, the reinforcement effect of the two types of rock bolts was different for different mechanical parameters. The bolted specimens displayed different failure characteristics compared to the unbolted specimens. …”
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    Article
  11. 291

    ADDRESSING CHALLENGES TO BUILDING INFORMATION MODELLING IMPLEMENTATION IN UK: DESIGNERS' PERSPECTIVES by Abdul-Majeed MAHAMADU, Dharshana NAVENDREN, Patrick MANU, Rotimi JOSEPH, Krzysztof DZIEKONSKI

    Published 2017-08-01
    “…Variations in the challenges and proposed solutions appear to differ across different categories of firms investigated in this study, particularly in relation to the cost of implementation. …”
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  12. 292

    How do national university science parks influence corporate green innovation? Evidence from Chinese listed companies by Yue Zhang, Shijie Ding

    Published 2024-11-01
    “…This study utilized panel data from Chinese listed firms from 2000 to 2020 and employed a difference-in-differences approach to evaluate the impact of NUSPs, initiated by the Chinese government in 2002, on corporate green innovation. …”
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  13. 293

    The impacts on population health by China's regional health data centers and the potential mechanism of influence by Jiaoli Cai, Yue Li, Peter C Coyte

    Published 2025-01-01
    “…Methods This study used national longitudinal survey data from the China Family Panel Studies over the period 2014–2020 to empirically assess the impact of China's establishment of pilot regional health data centers on population health and health inequality. A difference-in-differences model was employed to investigate the policy effect on population health, with additional exploration of possible mechanisms of influence. …”
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  14. 294

    A Single-sample Fault Diagnosis Method of a Wind Turbine Transmission Chain by Ruan Aiguo, Shen Zhongming, Liu Fabing, Zhao Hai, He Yangzhang, Qian Junbing, Zhang Wei

    Published 2024-08-01
    “…The concept of discrimination is introduced to quantify the difference between different fault signals. The experimental results show that the fault diagnosis method proposed is effective, and the discrimination between the four faults on the transmission chain of the wind turbine before and after the treatment is significantly increased, which shows that the experimental method has a strong robustness. …”
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  15. 295

    Association of Hospital Consolidation with Cancer Outcomes by Justin Graff MD, Mahnoor Ayub BS, MS, Prashanth Prabakaran MD, Brendan Keelan BS, John D. Cramer MD

    Published 2025-01-01
    “…We conducted a difference-in-differences analysis to assess the impact of hospital consolidation on cancer outcomes. …”
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  16. 296

    Gender-Based Choice of Politeness Strategies in Interviews by Desi Anwar with Queen of Denmark Margrethe II and President Erdogan by Theresia Arianti, Fenny Yutika Seli

    Published 2022-12-01
    “…Preferred politeness strategies are different among different racial groups and also genders. In the case of an interview, the interviewer needs to suit his/her choice of politeness strategies to the interviewee’s preference so that the interviewee would feel comfortable in answering the interview questions. …”
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  17. 297

    Inelastic Parametric Analysis of Seismic Responses of Multistorey Bidirectional Eccentric Structure by Yu-ping Kuang, Xin-liang Jiang, Nan Jiang

    Published 2018-01-01
    “…Based on a simplified multistorey bidirectional eccentric model composed of bidirectional lateral load-resisting members, a general law is proposed for three-stage natural frequency variation behaviour from elastic stage to inelastic stage of eccentric frame structures with different layers. Different simplification treatments are conducted on each stage and the three stable parameter analysis stages are defined. …”
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  18. 298

    Does administrative divisions adjustment affect polluting industries dependence? Evidence from township-town merge in China by Xiaodan Zheng, Shangpu Li, Junwen Li, Yihong Sun

    Published 2025-01-01
    “…This study evaluates the effect of TTM on local governments’ dependence on polluting industries from a fiscal decentralization angle, using the differences-in-differences model with transaction data from China’s land market. …”
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  19. 299

    Alleviative effects of Bacillus coagulans strains on irritable bowel syndrome-unraveling strain specificity through physiological and genomic analysis by Jiang Cao, Leilei Yu, Jianxin Zhao, Hao Zhang, Wei Chen, Yuzheng Xue, Qixiao Zhai

    Published 2024-07-01
    “…The high intraspecies heterogeneity of Baciillus coagulans leads to significant phenotypic differences among different strains. Thus, 6 B. coagulans strains were tested in the present study using an irritable bowel syndrome (IBS) animal model to determine whether the IBS-alleviating effects of B. coagulans strains are strain-specific. …”
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  20. 300

    Comparative genomic analysis revealed that dietary habits affected the adaptation of Bifidobacterium bifidum to the intestinal tract in different geographic populations by Min Li, Jie Yu, Weicheng Li, Qiong Wu, Jiaqi Sun, Zhihong Sun

    Published 2024-09-01
    “…Furthermore, functional annotation analysis demonstrated that copy numbers of carbohydrate-active enzymes (CAZys) involved in the degradation of polysaccharide from plant and host sources in B. bifidum were high, and 18 CAZys showed significant differences across different geographical populations, indicating that B. bifidum had adapted to the human intestinal environment, especially in the groups with diets rich in fiber. …”
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