Find Research outputs

Search results

• 2019

  Projection of a renewable energy system for the observatory of extraterrestrial life in ecuador and peru

  Nova, F. M., Icaza, D., Lojano, A., Herrera, L. C., Herrera, M. C. & Flores, C., Nov 2019, 8th International Conference on Renewable Energy Research and Applications, ICRERA 2019. Institute of Electrical and Electronics Engineers Inc., p. 815-820 6 p. 8996797. (8th International Conference on Renewable Energy Research and Applications, ICRERA 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

• Proporciones corporales en niños y adolescentes de zonas de moderada altitud del Perú: Propuesta de percentiles por edad y sexo

  Cossio-Bolaños, M. A., Castelli Correia De Campos, L. F., Luarte-Rocha, C., Sulla Torres, J. A., Cossio-Bolaños, W., Urra-Albornoz, C. & Gómez-Campos, R., 2019, In: Revista Espanola de Antropologia Fisica. 40, p. 49-61 13 p.

  Research output: Contribution to journal › Article › peer-review

• Proposal model for e-learning based on Case Based Reasoning and Reinforcement Learning

  Flores, A., Alfaro, L. & Herrera, J., Mar 2019, EDUNINE 2019 - 3rd IEEE World Engineering Education Conference: Modern Educational Paradigms for Computer and Engineering Career, Proceedings. Brito, C. D. R. & Ciampi, M. M. (eds.). Institute of Electrical and Electronics Engineers Inc., 8875800. (EDUNINE 2019 - 3rd IEEE World Engineering Education Conference: Modern Educational Paradigms for Computer and Engineering Career, Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
  2 Scopus citations

• Proposal models for personalization of e-learning based on flow theory and artificial intelligence

  Flores, A., Alfaro, L., Herrera, J. & Hinojosa, E., 2019, In: International Journal of Advanced Computer Science and Applications. 10, 7, p. 380-390 11 p.

  Research output: Contribution to journal › Article › peer-review

  3 Scopus citations

• Proposal of a fuzzy controller for radial position in a bearingless induction motor

  De Freitas Nunes, E. A., Salazar, A. O., Villarreal, E. R. L., Souza, F. E. C., Dos Santos, L. P., Lopes, J. S. B. & Cutipa Luque, J. C., 2019, In: IEEE Access. 7, p. 114808-114816 9 p., 8794801.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  6 Scopus citations

• Proposed standards for assessing language skills of adolescent students

  Lagos-Luciano, J., Andruske, C. L., Cossio-Bolaños, M., Sulla Torres, J. A., Idme, L. C., Luarte-Rocha, C. & Gómez-Campos, R., Dec 2019, In: International Electronic Journal of Elementary Education. 12, 2, p. 223-232 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

• Prototype of beacon-mobile application for medical appointment scheduling management

  Zea, H. E. C., Solano, S. R., Rondon, M. M., De La Vega, K. G. P., Gutierrez, E. C. & Araya, C. B., 2019, 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: "Industry, Innovation, and Infrastructure for Sustainable Cities and Communities", LACCEI 2019. Latin American and Caribbean Consortium of Engineering Institutions, (Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology; vol. 2019-July).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

  Open Access

• Reação de cultivares e clones de batata a Phytophthora infestans

  Translated title of the contribution: Reaction of potato cultivars and clones to Phytophthora infestansCasa Coila, V. H., Gomes, C. B., Lima-Medina, I., Rocha, D. J. A., Pereira, A. D. S. & Reis, A., 22 May 2019, In: Revista Caatinga. 32, 2, p. 390-398 9 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  1 Scopus citations

• Real-time MIMO nonlinear predictive control of a water tank plant

  Alvarez Zeballos, L. A., Delgado Barra, L. A. & Rojas-Moreno, A., Aug 2019, Proceedings of the 2019 IEEE 26th International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2019. Institute of Electrical and Electronics Engineers Inc., 8853620. (Proceedings of the 2019 IEEE 26th International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

• Reflections on the Teaching Body Criterion in an accreditation process: Proposal for teaching evaluation from the student perspective

  Bedregal-Alpaca, N., Delgado-Barra, L., Baluarte-Araya, C. & Sharhorodska, O., Sep 2019, Proceedings of the 2019 International Symposium on Engineering Accreditation and Education, ICACIT 2019. Institute of Electrical and Electronics Engineers Inc., 9130349. (Proceedings of the 2019 International Symposium on Engineering Accreditation and Education, ICACIT 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

• Resiliencia como factor determinante para la satisfacción con la vida en estudiantes universitarios

  Translated title of the contribution: Resilience as a factor determining satisfaction with life among university studentsVillalba Condori, K. O. & Martínez, R. A., 1 Jul 2019, In: Revista Cubana de Educacion Medica Superior. 33, 3, e1845.

  Research output: Contribution to journal › Article › peer-review

• Robotics in first year engineering students: An experience in learning concepts of linear motion

  Castro Gutierrez, E. G., Bobadilla-Chara, S., Mendoza-Pinto, D., Fernandez-Granda, W. & Chara-Barreda, C., 2019, In: CEUR Workshop Proceedings. 2555, p. 223-232 10 p.

  Research output: Contribution to journal › Conference article › peer-review

• Search model of educational trends based on Data Mining techniques

  Huanca-Gonza, R., Vera-Sancho, J., Arbieto-Batallanos, C. E. & Cordova Martinez, M. D. C., 2019, In: CEUR Workshop Proceedings. 2555, p. 147-156 10 p.

  Research output: Contribution to journal › Conference article › peer-review

• Sensor nodes fault detection for agricultural wireless sensor networks based on NMF

  Ludeña-Choez, J., Choquehuanca-Zevallos, J. J. & Mayhua Lopez, E. T., Jun 2019, In: Computers and Electronics in Agriculture. 161, p. 214-224 11 p.

  Research output: Contribution to journal › Article › peer-review
  7 Scopus citations

• SimpleAR: Augmented Reality high-level content design framework using visual programming

  Apaza-Yllachura, Y., Paz-Valderrama, A. & Corrales-Delgado, C., Nov 2019, 2019 38th International Conference of the Chilean Computer Science Society, SCCC 2019. IEEE Computer Society, 8966427. (Proceedings - International Conference of the Chilean Computer Science Society, SCCC; vol. 2019-November).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

• Sistema Distribuido RNA-AG para la Optimización de Patrones de Diseño en Vigas de Concreto Armado

  Translated title of the contribution: Distributed system RNA-Ag for the optimization of design patterns in reinforced concrete beamsSaico, J. S., Acero, P. V., Sanchez, R. T., Concha, H. & Sulla Torres, J. A., 2019, 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: "Industry, Innovation, and Infrastructure for Sustainable Cities and Communities", LACCEI 2019. Latin American and Caribbean Consortium of Engineering Institutions, (Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology; vol. 2019-July).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

  Open Access

• Small face detection using deep learning on surveillance videos

  Cárdenas, R. J., Beltrán, C. A. & Gutierrez Caceres, J. C., 1 Apr 2019, In: International Journal of Machine Learning and Computing. 9, 2, p. 189-194 6 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  6 Scopus citations

• Social representations on writing the final research paper of the mining engineering career in students and teachers of a semipresential programme

  Quispe, T. R., Villalba-Condori, K. O. & Chávez, D. A., 2019, In: Journal of Advanced Research in Dynamical and Control Systems. 11, 6 Special Issue, p. 120-130 11 p.

  Research output: Contribution to journal › Article › peer-review

  2 Scopus citations

• Some aspects of modern vision for geoenergy usage

  Dychkovskyi, R., Tabachenko, M., Zhadiaieva, K. & Caceres Cabana, E., 22 Oct 2019, In: E3S Web of Conferences. 123, 01010.

  Research output: Contribution to journal › Conference article › peer-review

  Open Access
  3 Scopus citations

• Storytelling with holograms for the development of reading competence

  Sancho, J. V., De la Gala Quispe, K. & Villalba Condori, K. O., 2019, Human-Computer Interaction - 5th Iberoamerican Workshop, HCI-Collab 2019, Revised Selected Papers. Ruiz, P. H. & Agredo-Delgado, V. (eds.). Springer, p. 345-355 11 p. (Communications in Computer and Information Science; vol. 1114 CCIS).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

• Student results evaluation model: Good practices, lessons learned and challenges to the future

  Sharhorodska, O. & Bedregal-Alpaca, N., Sep 2019, Proceedings of the 2019 International Symposium on Engineering Accreditation and Education, ICACIT 2019. Institute of Electrical and Electronics Engineers Inc., 9130216. (Proceedings of the 2019 International Symposium on Engineering Accreditation and Education, ICACIT 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
  2 Scopus citations

• Sustainable transport: Energy evaluation of a PV panel installed in a conventional vehicle for an urban city

  Pezo, M. X. C., Tito, E. W. C., Torres, J. C. Z. & Paredes Aguilar, L. L., Aug 2019, Proceedings of the 2019 IEEE 1st Sustainable Cities Latin America Conference, SCLA 2019. Institute of Electrical and Electronics Engineers Inc., 8905447. (Proceedings of the 2019 IEEE 1st Sustainable Cities Latin America Conference, SCLA 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

• System of generation of energy based on solar energy for the rural political movements centers

  Herrera, L. C., Icaza, D., Herrera, M. C., Nova, F. M., Icaza, F. & Flores, M., Nov 2019, 8th International Conference on Renewable Energy Research and Applications, ICRERA 2019. Institute of Electrical and Electronics Engineers Inc., p. 100-106 7 p. 8996774. (8th International Conference on Renewable Energy Research and Applications, ICRERA 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

• Teacher training to develop computational thinking at the primary education level

  Villalba Condori, K. O. & Oliva-Córdova, L. M., 2019, In: Journal of Advanced Research in Dynamical and Control Systems. 11, 10, p. 91-98 8 p.

  Research output: Contribution to journal › Article › peer-review

• Teaching Based on Ludic Environments for the First Session of Computer Programming - Experience with Digital Natives

  López, M. A., Duarte, E. V., Gutierrez, E. C. & Valderrama, A. P., May 2019, In: Revista Iberoamericana de Tecnologias del Aprendizaje. 14, 2, p. 34-42 9 p., 8736307.

  Research output: Contribution to journal › Article › peer-review
  3 Scopus citations

• Technological, lithological and economic aspects of data geometrization in coal mining

  Dychkovskyi, R. O., Lozynskyi, V. H., Saik, P. B., Dubiei, Y. V., Caceres Cabana, E. & Shavarskyi, I. T., 2019, In: Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2019, 5, p. 22-28 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  4 Scopus citations

• The concept of mining enterprises progress on the basis of underground coal gasification method characteristic

  Falshtynskyi, V., Dychkovskyi, R., Saik, P., Lozynskyi, V., Sulaiev, V. & Caceres Cabana, E., 2019, Solid State Phenomena. Trans Tech Publications Ltd, p. 137-147 11 p. (Solid State Phenomena; vol. 291).

  Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review
  1 Scopus citations

• The formative research and the methodologies of Learning Based on Problems or Projects (PBL) in the context of the accreditation process

  Aparicio, V. M. C., De La Vega, K. G. P., Barra, L. D., Araya, C. B. & Saji, F. G., Sep 2019, Proceedings of the 2019 International Symposium on Engineering Accreditation and Education, ICACIT 2019. Institute of Electrical and Electronics Engineers Inc., 9130288. (Proceedings of the 2019 International Symposium on Engineering Accreditation and Education, ICACIT 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
  1 Scopus citations

• The impact of the strategic learning achievement program in primary education students in Arequipa

  Castro-Cuba-Sayco, S. E., Espinoza-Suarez, S. M., Bejarano-Meza, M. E., Martinez-Puma, E., Ramos-Quispe, T. & García-Holgado, A., 2019, In: CEUR Workshop Proceedings. 2555, p. 213-221 9 p.

  Research output: Contribution to journal › Conference article › peer-review

• Thermoluminescence and defect centers in synthetic diopside

  Cano, N. F., Gundu Rao, T. K., Gonzales-Lorenzo, C. D., Ayala Arenas, J. S., Javier-Ccallata, H. S. & Watanabe, S., Jul 2019, In: Journal of Luminescence. 211, p. 314-319 6 p.

  Research output: Contribution to journal › Article › peer-review
  1 Scopus citations

• The TPACK model as the basis of a didactic proposal for the teaching-learning of Linear Programming

  Bedregal-Alpaca, N., Tupacyupanqui-Jaen, D. & Cornejo-Aparicio, V., Mar 2019, EDUNINE 2019 - 3rd IEEE World Engineering Education Conference: Modern Educational Paradigms for Computer and Engineering Career, Proceedings. Brito, C. D. R. & Ciampi, M. M. (eds.). Institute of Electrical and Electronics Engineers Inc., 8875763. (EDUNINE 2019 - 3rd IEEE World Engineering Education Conference: Modern Educational Paradigms for Computer and Engineering Career, Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
  1 Scopus citations

• The Transition from high school to university: Identifying internal and external factors for a successful transition in peruvian students of Architecture and Engineering

  Duche-Perez, A. B., Paredes-Quispe, F. M. & Gutierrez Aguilar, O. A., Mar 2019, EDUNINE 2019 - 3rd IEEE World Engineering Education Conference: Modern Educational Paradigms for Computer and Engineering Career, Proceedings. Brito, C. D. R. & Ciampi, M. M. (eds.). Institute of Electrical and Electronics Engineers Inc., 8875751. (EDUNINE 2019 - 3rd IEEE World Engineering Education Conference: Modern Educational Paradigms for Computer and Engineering Career, Proceedings).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
  2 Scopus citations

• TL in green tourmaline: Study of the centers responsible for the TL emission by EPR analysis

  Cano, N. F., Gundu Rao, T. K., Ayala Arenas, J. S., Gonzales-Lorenzo, C. D., Oliveira, L. M. & Watanabe, S., Jan 2019, In: Journal of Luminescence. 205, p. 324-328 5 p.

  Research output: Contribution to journal › Article › peer-review
  4 Scopus citations

• Towards real-time automatic stress detection for office workplaces

  Suni Lopez, F., Condori-Fernandez, N. & Catala, A., 2019, Information Management and Big Data - 5th International Conference, SIMBig 2018, Proceedings. Lossio-Ventura, J. A., Alatrista-Salas, H. & Muñante, D. (eds.). Springer Verlag, p. 273-288 16 p. (Communications in Computer and Information Science; vol. 898).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
  3 Scopus citations

• Towards the development of collaborative learning in virtual environments

  Maraza-Quispe, B., Caytuiro-Silva, N., Castro-Gutierrez, E., Alejandro-Oviedo, M., Choquehuanca-Quispe, W., Fernandez-Gambarini, W., Cuadros-Paz, L. & Cisneros-Chavez, B., 2019, In: International Journal of Advanced Computer Science and Applications. 10, 12, p. 270-276 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

• Toxicidad del cobre sobre la morfología de estomas de gochnatia arequipensis sandwith (Asteraceae) de dos localidades de Arequipa, Perú

  Translated title of the contribution: Copper toxicity on the stomata morphology of gochnatia arequipensis sandwith (Asteraceae) from two localities of Arequipa, PerúMachaca, D. A. A., Valdivia, B. R. M., Romero Vargas, F. F. & Oviedo, R. D. N., Sep 2019, In: Idesia. 37, 3, p. 81-87 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

• Tutoría virtual y blended- learning en el posgrado: Orientaciones y resultados de una experiencia

  Translated title of the contribution: Virtual tutoring and blended-learning in the postgraduate course: Orientations and results of an experienceBedregal-Alpaca, N., 2019, 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: "Industry, Innovation, and Infrastructure for Sustainable Cities and Communities", LACCEI 2019. Latin American and Caribbean Consortium of Engineering Institutions, (Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology; vol. 2019-July).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

  Open Access

• Una experiencia b-Learning/m-Learning como soporte para la mejora de las capacidades del área de Inglés para estudiantes de Ingeniería

  Translated title of the contribution: A b-Learning / m-Learning experience as support for improving the capabilities of the English area for Engineering studentsGarcía, A. & Vidal, E., 2019, 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: "Industry, Innovation, and Infrastructure for Sustainable Cities and Communities", LACCEI 2019. Latin American and Caribbean Consortium of Engineering Institutions, (Proceedings of the LACCEI international Multi-conference for Engineering, Education and Technology; vol. 2019-July).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

  Open Access
  1 Scopus citations

• Una experiencia de analíticas de aprendizaje utilizando tableros de visualización de interacciones como soporte a la tutoría virtual

  Translated title of the contribution: A learning analytics experience using interaction visualization dashboards to support virtual tutoringOliva-Córdova, L. M., Amado-Salvatierra, H. R., Monterroso, L., Bojórquez-Roque, M. S. & Villalba Condori, K. O., 2019, LALA 2019 - Proceedings of the 2nd Latin American Conference on Learning Analytics. Scheihing, E., Guerra, J., Henriquez, V., Olivares, C. & Munoz-Merino, P. J. (eds.). CEUR-WS, p. 69-78 10 p. (CEUR Workshop Proceedings; vol. 2425).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

• Usability and quality measurement of the serial video game matelogic

  Talavera Mendoza, F. M., Rucano Paucar, F. H., Alarcon, D. A. U., Choque, A. C. P. & Villalba Condori, K. O., 2019, In: Journal of Advanced Research in Dynamical and Control Systems. 11, 11 Special Issue, p. 519-528 10 p.

  Research output: Contribution to journal › Article › peer-review

• Using Google Earth and KML to teach Fundamental Object Oriented Programming

  Vidal, E., Castro Gutierrez, E. G. & Erkan, A., Nov 2019, 2019 38th International Conference of the Chilean Computer Science Society, SCCC 2019. IEEE Computer Society, 8966389. (Proceedings - International Conference of the Chilean Computer Science Society, SCCC; vol. 2019-November).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

• Using Project-based learning in a Hybrid e-Learning system model

  Alfaro Casas, L. A., Rivera Chavez, C. P. & Luna-Urquizo, J., 2019, In: International Journal of Advanced Computer Science and Applications. 10, 10, p. 426-436 11 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  2 Scopus citations

• Uso de bocashi y microorganismos eficaces como alternativa ecológica en el cultivo de fresa en zonas áridas

  Translated title of the contribution: Use of bocashi and effective microorganisms as an ecological alternative in strawberry crops in arid zonesSarmiento Sarmiento, G. J., Amézquita Álvarez, M. A. & Mena Chacón, L. M., 2019, In: Scientia Agropecuaria. 10, 1, p. 55-61 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

• Validation of an instrument to assess the skill levels of adolescent students to learn knowledge

  Cossio-Bolaños, M., Andruske, C. L., Vitoria, R. V., Luciano, J. L., Luarte-Rocha, C., Sulla Torres, J. A. & Gómez-Campos, R., 2019, In: International Electronic Journal of Elementary Education. 12, 1, p. 47-52 6 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  1 Scopus citations

• Validez, confiabilidad y baremación para medir la auto-percepción del estrés académico de estudiantes universitarios

  Translated title of the contribution: Validity, reliability and scale to measure the self-perception of academic stress of university studentsCanqui-Flores, B., Mendoza-Mollocondo, C. I., Torres-Cruz, F., Fuentes-López, J., Gómez-Campos, R., Viveros-Flores, A., Rivera Portugal, A. M. & Cossío-Bolaños, M., 2019, In: Gaceta Medica de Bilbao. 116, 4, p. 158-165 8 p.

  Research output: Contribution to journal › Article › peer-review

  1 Scopus citations

• Validez, confiabilidad y percentiles de un cuestionario que mide los niveles de actividad en adolescentes que viven a moderada altitud del Perú

  Translated title of the contribution: Validity, reliability, and percentiles of a questionnaire measuring activity levels in adolescents living at moderate altitude in PeruCossio-Bolanõs, M. A., Vidal-Espinoza, R., Sulla Torres, J. A., Luarte-Rocha, C., Pacheco-Carrillo, J. & Gomez-Campos, R., 2019, In: Retos. 36, 2, p. 441-445 5 p.

  Research output: Contribution to journal › Article › peer-review

• Videojuegos y literatura: Estudio de tres casos de intertextos hispanoamericanos

  Translated title of the contribution: Video games and literature: Case studies of three Hispanic-American intertextsNuñez Pacheco, R., Castillo Torres, D. E. & Navarrete-Cardero, L., 2019, In: Arte, Individuo y Sociedad. 31, 3, p. 527-542 16 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  1 Scopus citations

• Virtual reality full immersion techniques for enhancing workers performance, 20 years Later: A review and a reformulation

  Alfaro Casas, L. A., Rivera Chavez, C. P., Luna-Urquizo, J., Alfaro, S. & Fialho, F., 2019, In: International Journal of Advanced Computer Science and Applications. 10, 10, p. 500-510 11 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  1 Scopus citations

• Wearable and IoT technology in the development of applications for Postural Physiotherapy

  Ferreira, E. C., Beingolea, J. R. & Rendulich Talavera, J. E., Aug 2019, Proceedings of the 2019 IEEE 1st Sustainable Cities Latin America Conference, SCLA 2019. Institute of Electrical and Electronics Engineers Inc., 8905667. (Proceedings of the 2019 IEEE 1st Sustainable Cities Latin America Conference, SCLA 2019).

  Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review
  1 Scopus citations

• What is new in teaching science structured around the notion of 'scientific competence'?

  Villalba Condori, K. O., Adúriz-Bravo, A., García-Peñalvo, F. J. & Lavonen, J., 2019, In: CEUR Workshop Proceedings. 2555, p. 12-15 4 p.

  Research output: Contribution to journal › Conference article › peer-review

  1 Scopus citations