Showing 6,861 - 6,880 results of 9,156 for search 'issues samples', query time: 0.15s Refine Results
  1. 6861
  2. 6862
  3. 6863

    Uptake of and willingness to pay for health insurance in rural Senegal: a reinforcement effect by Sylvie Boyer, Cheikh Sokhna, Bruno Ventelou, Marwân-al-Qays Bousmah

    Published 2025-05-01
    “…We use an econometric methodology involving: (1) Heckman-type selection models to estimate the determinants of CBHI membership conditioned on awareness of health insurance, addressing the issue of sample selection due to differential awareness and (2) a simultaneous equation model to jointly estimate the uptake and WTP for health insurance, addressing the issue of endogeneity due to reverse causality between both variables. …”
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  4. 6864

    Risk Factors of Obesity among Children Under 5 Years in Hilla City by Awatif Abd AL-khalik, Ali Hussein Al-Hafidh, Suha Attia Kadhum

    Published 2022-11-01
    “…The study used a convenience sampling technique (non-random sampling technique) to choose the children with obesity and control groups via take body anthropometry and direct interviews. …”
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  5. 6865
  6. 6866
  7. 6867

    IS THE FRIDAY EFFECT A FIRM EFFECT? THE CASE OF CASH-FINANCED ACQUISITION ANNOUNCEMENTS OF UNLISTED FIRMS. EVIDENCE FROM SPAIN

    Published 2023-06-01
    “…However, this differential market reaction to announcements on Fridays may be potentially misspecified due to selection bias. We explore this issue for a sample of 192 cash-financed acquisition announcements of unlisted target firms made by listed Spanish firms from 1998 to 2018. …”
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  8. 6868

    ECONOMICS OF THE ENVIRONMENT AND THE EXPENSE OF ENVIRONMENTAL DEGRADATION IN SELECTED ARAB COUNTRIES FOR THE PERIOD 1999-2006 by Salim Mohammed Salih Al-Youzbaki, Naseem Zuhair Hamad Abdullah

    Published 2012-01-01
    “…ABSTRACT The study aims to identify of the economics of the environmental and their effects on of the reality resources and the nature economic development, and to the expense of environmental degradation in the sample countries using style descriptive, and because of what ails the environmental today of the problems and damage aggravated dangerous and threatening annihilation of all living organisms, including humans, and for that loud trends, and fell a part pens and held international meetings and organizations formed and research environmental centers and made a lot of legislation to put an end to this environmental degradation, Warner dangers expected of the land and threatened with extinction for all living organisms, including humans, as it is no longer comprehend the environment5al issue of the welfare and conditions for the life of an optimal. …”
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  9. 6869

    The Impact of Service Quality on Customer Behavioral Loyalty in the Case of Travel Agencies from Romania by Ovidiu I. Moisescu, Oana A. Gica

    Published 2014-11-01
    “…Even though the concept of loyalty has been a key issue in tourism destination marketing for the last decades, the issue of customer loyalty in the case of travel agencies seems to be less emphasized in the specialized literature. …”
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  10. 6870

    Janus kinase 2 V617F mutation in an unrelated peripheral blood stem cell donor by Shang-Hsien Yang, Hsiang-Lin Wan, Ming-Hui Gu, Tso-Fu Wang

    Published 2019-01-01
    “…This report presents a safety issue for both donor and recipient of hematopoietic stem cell transplantation. …”
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  11. 6871

    Health, Food Consumption, Social Economy, and Stunting Incidency in Timor Leste by Cipriano do Rosario Pacheco, Intje Picauly, Mindo Sinaga

    Published 2017-11-01
    “…The population of this study was toddlers 24-59 months old, with a sample size of 102 people. Sampling technique used was simple random sampling. …”
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  12. 6872

    Impact of animated video media on enhancing numeracy skills among primary school students by Azzura Raudha, Jesi Alexander Alim, Muhammad Fendrik

    Published 2025-01-01
    “…The study population consisted of 48 students from an elementary school in the Lalang area, Sungai Apit District. The sample comprised 31 students, divided into two classes, selected through random sampling techniques. …”
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  13. 6873

    Does the PBL-STEM model improve students' deductive, inductive, and reasoning skills in biology? by Eka Riana Widiyanti, Slamet Suyanto

    Published 2025-07-01
    “…The population of this study consisted of 232 tenth-grade students at Senior High Schools 1Pakem. The sampling technique used was cluster random sampling. …”
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  14. 6874

    Analisis Risiko, Pengembalian, dan Koefisien Variasi Investasi Hijau pada Sektor Pertambangan by Amelia Lestari, Siti Komariah Hildayanti, Emilda Emilda

    Published 2025-04-01
    “…In recent years, climate change has become a major issue around the world that affects various sectors. …”
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  15. 6875
  16. 6876

    Stakeholders’ Perception of Causes and Consequences of ASUU Strike Among Public Universities in Nigeria: 1999–2022 by Aun Thompson Toryuha

    Published 2024-09-01
    “…The population of the study comprised all the 91 public universities in Nigeria; the sample of the study was 400 stakeholders, comprising of lectures, students, parents, transporters, and marketers across all the public universities in the nation, who were selected using multistage sampling procedure of purposive and simple random sampling at their respective public universities. …”
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  17. 6877

    Linear B-cell epitope prediction for SARS and COVID-19 vaccine design: Integrating balanced ensemble learning models and resampling strategies by Fatih Gurcan

    Published 2025-06-01
    “…This study presents a comprehensive machine learning framework to enhance the prediction accuracy of B-cell epitopes and antibody recognition related to Severe Acute Respiratory Syndrome (SARS) and Coronavirus Disease 2019 (COVID-19). To address the issue of data imbalance, various resampling techniques were applied using three types of strategies: over-sampling, under-sampling, and hybrid-sampling. …”
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  18. 6878

    ESG Practices and Company Value: A Literature Review by Wallace Lima, Michele Nascimento Jucá

    Published 2025-04-01
    “…Therefore, the dissemination of sustainable practices improves the efficiency of investments. Data: The initial sample consists of 303 articles that evolved into a final sample of 63 articles, obtained between 2015 and 2022, from the Web of Science and Scopus databases. …”
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  19. 6879

    Association between Severity of Anemia and Maternal Factors During Pregnancy in Maternity Teaching Hospital/Erbil City by Hamdia Mirkhan Ahmed, Warda Hassan AboaAllah, Awaz Aziz Saeed

    Published 2015-08-01
    “… Background: Anemia is a global health issue with disproportionately high prevalence in women in developing countries. …”
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  20. 6880

    Approximate Model Technology Application in EMUs Dynamics Analysis by YANG Yang, LI Fu, LI Jincheng, HUANG Yunhua

    Published 2016-01-01
    “…Since EMUs has many complicated components and non-linear factors, the speed calculation is the core issue that restrictsvehicle dynamic research. To solve this problem, a new research method based on the approximate model technology was proposed.To verify the feasibility of this method, taking the independent designed high-speed EMUs CRH380A as the research object, the 11suspension parameters of the vehicle were taken as input, and the indexes of stability and stable were taken as response, by sampling in theinputs with optimal Latin hypercube design, the response values of those sample points were calculated through the dynamic model, andaccording to the response values, the three approximate models of the vehicle dynamic were established, including Kriging approximatemodel, response surface model and RBF neural network model, as well as the error of each model was calculated. …”
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