| Journal | Issue | Title | |
| Journal of Economics, Trade and Marketing Management | Vol 5, No 1 (2023) | Opportunities, Challenges and Countermeasures of Enterprise Marketing in the new media era | Abstract PDF |
| Jingwu Yao, Liwen Yao | |||
| Urban Studies and Public Administration | Vol 2, No 3 (2019) | Opportunities Threats and Challenges in Anarchistic and Autarkic States-Utopian States versus Dystopian States-Plight of Communities and Individuals in the Modern World | Abstract PDF |
| Kwesi Atta Sakyi, Francis Mukosa, Burton Mweemba, Moses Katebe | |||
| Studies in Social Science Research | Vol 2, No 4 (2021) | Opportunity Cost and Automated Behavior in Groups | Abstract PDF |
| Mengyue Zhao | |||
| Journal of Education and Culture Studies | Vol 1, No 1 (2017) | Opportunity to Teach: Push-In and Pull-Out Models of English Learner Instruction | Abstract PDF |
| Laura Baecher, Angela B. Bell | |||
| Journal of Education, Teaching and Social Studies | Vol 5, No 4 (2023) | Optical Fiber Communication Technology and Its Application in Power Communication | Abstract PDF |
| Min Duan | |||
| Research in Health Science | Vol 9, No 4 (2024) | Optical Genome Mapping—A Cytogenomic Tool for Prenatal Diagnostics | Abstract PDF |
| Qing Xiao, Ziwei Li, Jinzhi Lu | |||
| Studies in Social Science Research | Vol 4, No 1 (2023) | Optimal Design of Insulation of 3.6kV Vacuum Interrupter | Abstract PDF |
| Lifan Yang | |||
| World Journal of Education and Humanities | Vol 4, No 1 (2022) | Optimal Use of the Sixth Sense in Devkota’s Poem “The Lunatic” | Abstract PDF |
| Lok Raj Sharma | |||
| Advances in Politics and Economics | Vol 2, No 2 (2019) | Optimality of Morocco’s Currency Basket | Abstract PDF |
| AZZOUZI Asmae, BOUSSELHAMI Ahmed | |||
| Journal of Economics and Public Finance | Vol 7, No 3 (2021) | Optimising the Business and Talent Environment in Chengdu to Help High-quality Economic Development | Abstract PDF |
| Li Xiang, Chen Hongxi | |||
| Applied Science and Innovative Research | Vol 9, No 1 (2025) | Optimization and Practice of Project Management Models in Real Estate Development | Abstract PDF |
| Jing Wang | |||
| Education, Language and Sociology Research | Vol 6, No 4 (2025) | Optimization Design and Practice Path of Shared Management of Large-Scale Instruments and Equipment in Universities Driven by “Internet Plus” | Abstract PDF |
| Kaitian Luo, Lili He, Xingbing Yang | |||
| International Journal of Accounting and Finance Studies | Vol 1, No 2 (2018) | Optimization of Financial Resources for Growth of Spiritual Learning (Nishkam Karma Yoga—Desire Less Action) for Stress Management in Business Corporate Sector | Abstract PDF |
| Kamal Nain Chopra, Namrata Sharma, Ajit Behura | |||
| Applied Science and Innovative Research | Vol 9, No 4 (2025) | Optimization of Structural Parameters for UAV Spray Nozzles Using Response Surface and Genetic Algorithms | Abstract PDF |
| Yujie Li, Qingzheng Liu, Chaojie Zhai | |||
| Research in Economics and Management | Vol 2, No 4 (2017) | Optimization of the Capsule Production Stochastic Cycle Time | Abstract PDF |
| Kamal Ghouchanian, Kiarash Ghassaban, Mojtaba Jokar | |||
| Applied Science and Innovative Research | Vol 9, No 1 (2025) | Optimization of the Learning Process of Knowledge-based Short Videos: The Impact of Self-determined Motivation on Self-directed Learning Ability | Abstract PDF |
| Jiadan Lin, Baiyan Du, Yuege Lai | |||
| Applied Science and Innovative Research | Vol 6, No 2 (2022) | Optimization of Warehouse Picking Based on TSP | Abstract PDF |
| Yuhan Wang, Yanshan Liao, Junhong Kang, Yu Dang, Zixin Jiang | |||
| International Business & Economics Studies | Vol 7, No 1 (2025) | Optimization Strategies and Practical Exploration of Enterprise Industrial Investment from the Perspective of Investment and Financing | Abstract PDF |
| Chenghong Fu | |||
| Education, Language and Sociology Research | Vol 5, No 4 (2024) | Optimizing the Path of Marxist Theory Education in Higher Education from a Youth Perspective | Abstract PDF |
| Jiarui Cao, Xinghai Zhang | |||
| World Journal of Educational Research | Vol 3, No 2 (2016) | Oral & Dental Health Knowledge and Attitude among Nursing Students | Abstract PDF |
| Leena Smadi, Omayah S Nassar | |||
| Frontiers in Education Technology | Vol 5, No 4 (2022) | Oral Didactics in an Actional Approach: Manifesting Emotions and Involving the Limbic System in a Face-to-Face and in a Hybrid Context | Abstract PDF |
| Euphrosyne A. Efthimiadou | |||
| Research in Health Science | Vol 2, No 3 (2017) | Oral Health-Related Quality of Life in Brazilian Patients Wearing Three Types of Lower Dentures: Psychosocial and Clinical Aspects | Abstract PDF |
| Campos M. R., Carvalho P. S. P., Moura W. V. B., Moura P. M. M. M., Vasconcelos M. O. | |||
| Research in Economics and Management | Vol 3, No 2 (2018) | Organic Food Business in India: A Survey of Companies | Abstract PDF |
| Arpita Mukherjee, Avantika Kapoor, Souvik Dutta | |||
| International Education Studies and Sustainability | Vol 2, No 2 (2022) | Organic Food Production as a Necessity and Obligation of People in the 21st Century to Preserve Health, Biodiversity, and the Atmosphere the Position of Serbia on a Global Scale | Abstract PDF |
| Ana Milojevic Jelisijevic | |||
| Research in Agriculture | Vol 2, No 1 (2017) | Organic Lawn Care Case Studies on Home Turf | Abstract PDF |
| Joseph R. Heckman | |||
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