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Çağıltay, Nergiz
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Çağıltay, Nergis E.
Nergiz, Çağıltay
Çağıltay, Nergiz
Nergiz, Cagiltay
Ç.,Nergiz
C.,Nergiz
N., Cagiltay
N.,Çağıltay
Cagiltay, Nergiz
Cagiltay,N.
Çağıltay,N.
N.,Cagiltay
C., Nergiz
Çağıltay, Nergiz Ercil
Cagiltay, Nergiz Ercil
Çağıltay, Nergiz E.
Nergiz, Çağıltay
Çağıltay, Nergiz
Nergiz, Cagiltay
Ç.,Nergiz
C.,Nergiz
N., Cagiltay
N.,Çağıltay
Cagiltay, Nergiz
Cagiltay,N.
Çağıltay,N.
N.,Cagiltay
C., Nergiz
Çağıltay, Nergiz Ercil
Cagiltay, Nergiz Ercil
Çağıltay, Nergiz E.
Job Title
Profesör Doktor
Email Address
nergiz.cagiltay@atilim.edu.tr
Main Affiliation
Software Engineering
Status
Former Staff
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals
4
QUALITY EDUCATION
33
Research Products
7
AFFORDABLE AND CLEAN ENERGY
1
Research Products
9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
1
Research Products
11
SUSTAINABLE CITIES AND COMMUNITIES
1
Research Products
16
PEACE, JUSTICE AND STRONG INSTITUTIONS
3
Research Products
17
PARTNERSHIPS FOR THE GOALS
3
Research Products
This researcher does not have a Scopus ID.
This researcher does not have a WoS ID.
Scholarly Output
137
Articles
79
Views / Downloads
544/3630
Supervised MSc Theses
26
Supervised PhD Theses
3
WoS Citation Count
1157
Scopus Citation Count
1469
WoS h-index
17
Scopus h-index
20
Patents
0
Projects
0
WoS Citations per Publication
8.45
Scopus Citations per Publication
10.72
Open Access Source
17
Supervised Theses
29
Google Analytics Visitor Traffic
| Journal | Count |
|---|---|
| 18th IEEE International Symposium on Personal, Indoor and Mobile Radio Communication -- SEP 03-07, 2007 -- Athens, GREECE | 7 |
| IEEE Access | 5 |
| Computers & Education | 3 |
| International Journal of Human–Computer Interaction | 3 |
| Surgical Innovation | 3 |
Current Page: 1 / 10
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Competency Cloud
13 results
Scholarly Output Search Results
Now showing 1 - 10 of 13
Conference Object Understanding the Effect of Passive View on Surgical Performance in Simulation-Based Endoscopic Surgery Education(Iated-int Assoc Technology Education A& development, 2016) Topalli, Damla; Cagiltay, Nergiz ErcilWith the improvements of technologies in the field of surgery, minimally invasive surgical (MIS) technique have become the standard of surgical care for many patients which is performed through the camera view of the operational area from small entry points to the patients' body. Unlike open surgery, MIS is, by its nature, a technique that is very suitable for simulation based training. Developing special skills by using surgical simulations before entering an operating room enables more focused and efficient performance, which minimizes time in the operating room and enhances patient safety. Beside the benefits, MIS reveals some drawbacks as well, such as passive view. Passive view occurs when the surgeon needs the help of assistant to control the camera instead of controlling by his own movements. In such cases, performing the operation from the assistant's camera controlled view is considered as passive view. Earlier studies show that this passive view problem affects the surgical performance. Accordingly, the related surgery training programs should consider providing skills on passive view and the surgical tool designers also should consider this problem in their designs. Hence understanding the concept of passive view in general and understanding its possible affects on surgical performance is critical to improve the surgery process. Additionally, understanding the instructional considerations to better provide environments to practice for gaining these skills are critical for the domain of endoscopic surgery education programs. However, in the literature there are not many studies related with the passive view problem in endoscopic surgery procedures. In this study, a literature review is conducted to better understand the problems related with the passive view. Additionally, a pilot experimental study is conducted through a surgical simulation environment. The results of this study aimed to provide guidelines to the surgical training programs and the instructional system designers to improve the skills of the trainees to better deal with passive-view problem in endoscopic surgery.Conference Object Citation - WoS: 1Gamification in Neurosurgery Education(Iated-int Assoc Technology Education & development, 2017) Topalli, Damla; Cagiltay, Nergiz ErcilNowadays, gamification is becoming popular as a new form of education in healthcare applications, due to the need of creating more effective educational practices. Educators in healthcare field are currently applying strategies used in popular games to create more engaging learning environments. Studies in the literature show that, creating learning environments by using gamification leads to better improved learning. The main goal of this approach is to increase the motivation of the participant. Accordingly, this study aims to examine the effect of gamification on learning in neurosurgery education. In order to better understand this effect of gamification on learning, a surgical simulation game "Wire Haptic in Dark" is developed in two versions by applying gamification techniques as a part of Endoneurosurgery Education Project (ECE). The scenario is developed in two versions: one containing some gamification attributes and the other one not including any gamification attributes. The gamification version of the scenario is designed by showing the time passed to perform the task successful, the score of the participant on the screen while playing the game and including sounds in case of the collision during the game, whereas the other version is created without sound, time and score information. The experimental results of this study reveal that gamification enhances the performance as well as the motivation of the participant. As motivation increases, participant performance in a given game task becomes more effective. The results of this study aimed to help the surgical educators and the instructional system designers to improve the benefits of using gamification in learning environments for the surgical education programs.Review Citation - WoS: 7Citation - Scopus: 7A Systematic Review on Classification and Assessment of Surgical Skill Levels for Simulation-Based Training Programs(Elsevier Ireland Ltd, 2023) Tonbul, Gokcen; Topalli, Damla; Cagiltay, Nergiz ErcilBackground: Nowadays, advances in medical informatics have made minimally invasive surgery (MIS) procedures the preferred choice. However, there are several problems with the education programs in terms of surgical skill acquisition. For instance, defining and objectively measuring surgical skill levels is a challenging process. Accordingly, the aim of this study is to conduct a literature review for an investigation of the current approaches for classifying the surgical skill levels and for identifying the skill training tools and measurement methods.Materials and Methods: In this research, a search is conducted and a corpus is created. Exclusion and inclusion criteria are applied by limiting the number of articles based on surgical education, training approximations, hand movements, and endoscopic or laparoscopic operations. To satisfy these criteria, 57 articles are included in the corpus of this study.Results: Currently used surgical skill assessment approaches have been summarized. Results show that various classification approaches for the surgical skill level definitions are being used. Besides, many studies are con-ducted by omitting particularly important skill levels in between. Additionally, some inconsistencies are also identified across the skill level classification studies.Conclusion: In order to improve the benefits of simulation-based training programs, a standardized interdisci-plinary approach should be developed. For this reason, specific to each surgical procedure, the required skills should be identified. Additionally, appropriate measures for assessing these skills, which can be defined in simulation-based MIS training environments, should be refined. Finally, the skill levels gained during the developmental stages of these skills, with their threshold values referencing the identified measures, should be redefined in a standardized manner.Conference Object Insights for Instructional System Designers by Understanding the Skill Levels of Endoscopic Surgery Education Programs(Iated-int Assoc Technology Education & development, 2016) Topalli, Damla; Cagiltay, Nergiz ErcilAs technology enhances, the new techniques for surgical operations are also developed. For instance endoscopic surgery is a new alternative of open surgery when it is possible. In this technique, the surgeon performs the operation by using a camera named as endoscope and special operational tools in order to make the operation by using small enter points. These operations are performed by looking at the video image of the operational field. In order to perform these types of operations, the surgeons are required to gain several skills. Hands-on try-and error type of training is very important to developing such skills which is currently provided in the operating theatre with the real patients. As this type of education has several ethical and safety considerations, new educational approaches are required for the surgery education programs. Today, virtual reality simulation technology addresses most of the problems of endoscopic surgery education. However, integrating this technology into the curriculum of the surgical education programs is critical for improving benefits of this technology. In order to better integrate these environments into the traditional education and training programs, understanding and assessing the skill levels of the trainees is a very critical. By better understanding and measuring the skill levels of surgeons, appropriate instructional systems can be developed and the education programs can be adapted according to the progress of the skill improvements. In the literature, there are several classifications for defining these skill levels. However, the standards and studies for defining and using these skill levels for the surgical education are very limited. In this study, a literature review is conducted to better understand the definitions of skill levels for the surgical education. Additionally, a more standardized and general perspective to improve the benefits of these skill level definitions for the surgical education is provided. The results of this study aimed to help the surgical educators and the instructional system designers to better address these skill levels in their programs and improve the benefits of technology enhanced learning environments for the surgical education programs.Conference Object Citation - WoS: 1Neuronavigation Systems and Passive Usage Problem(Ieee, 2015) Cagiltay, Nergiz; Topalli, Damla; Borcek, Alp Ozgun; Tokdemir, Gul; Maras, Hakan; Tonbul, Gokcen; Aydin, ElifNowadays, neuronavigation systems are used in brain surgery procedures, known as a technology to help the surgeon during the operational period. However, the surgeons have faced several problems with the existing systems. Some of these problems are related to the systems software and user interfaces. In this study, such problems are examined and the "Passive Usage" term is added to the literature by establishing a connection between the problems of endoscopic surgical procedures and similar issues occurred in other domains. The passive usage problem is generalized on different domains for the first time with this study. The results of the study expected to gather up the similar passive usage problems experienced in different domains. Accordingly, the methodologies and studies that are conducted in different research areas may lead to eliminate the Passive Usage problems efficiently.Article Citation - WoS: 6Citation - Scopus: 6Understanding the Effect of Handedness on Both-Handed Task Performance: an Experimental Study Based on a Haptic-Controlled, Simulation-Based Surgical Skill Training Scenario(Taylor & Francis inc, 2019) Topalli, Damla; Eyuboglu, Burak Gokberk; Cagiltay, Nergiz ErcilUnderstanding the performance on both-handed tasks, such as endoscopic surgery, is critical to better organize and develop appropriate instructional systems to improve the necessary skills of surgeons. However, in the literature, only a limited number of studies have investigated the effect of handedness on both-handed task performance. This study aimed to provide an understanding of the participants' performance differences while performing both-handed tasks through a haptic user interface in a simulated virtual environment specifically developed for surgical training purposes. Twenty-four surgeons attending a medical school in Turkey voluntarily participated in the study. The duration, accuracy, and collision measures were automatically recorded by software. The results revealed that the left-handed participants performed the both-handed tasks (camera: nondominant hand, tool: dominant-hand) in a significantly shorter time than the right-handed participants. This study also showed that haptic-controlled simulation-based surgical skill training systems can potentially provide measures for better understanding the individual behaviors and deliver alternative training environments specific to individual requirements.Article Citation - WoS: 22Citation - Scopus: 37Performing and Analyzing Non-Formal Inspections of Entity Relationship Diagram (erd)(Elsevier Science inc, 2013) Cagiltay, Nergiz Ercil; Tokdemir, Gul; Kilic, Ozkan; Topalli, DamlaDesigning and understanding of diagrammatic representations is a critical issue for the success of software projects because diagrams in this field provide a collection of related information with various perceptual signs and they help software engineers to understand operational systems at different levels of information system development process. Entity relationship diagram (ERD) is one of the main diagrammatic representations of a conceptual data model that reflects users' data requirements in a database system. In today's business environment, the business model is in a constant change which creates highly dynamic data requirements which also requires additional processes like modifications of ERD. However, in the literature there are not many measures to better understand the behaviors of software engineers during designing and understanding these representations. Hence, the main motivation of this study is to develop measures to better understand performance of software engineers during their understanding process of ERD. Accordingly, this study proposes two measures for ERD defect detection process. The defect detection difficulty level (DF) measures how difficult a defect to be detected according to the other defects for a group of software engineers. Defect detection performance (PP) measure is also proposed to understand the performance of a software engineer during the defect detection process. The results of this study are validated through the eye tracker data collected during the defect detection process of participants. Additionally, a relationship between the defect detection performance (PP) of a software engineer and his/her search patterns within an ERD is analyzed. Second experiment with five participants is also conducted to show the correlation between the proposed metric results and eye tracker data. The results of experiment-2 also found to be similar for DF and PP values. The results of this study are expected to provide insights to the researchers, software companies, and to the educators to improve ERD reasoning process. Through these measures several design guidelines can be developed for better graphical representations and modeling of the information which would improve quality of these diagrams. Moreover, some reviewing instructions can be developed for the software engineers to improve their reviewing process in ERD. These guidelines in turn will provide some tools for the educators to improve design and review skills of future software engineers. (c) 2013 Elsevier Inc. All rights reserved.Conference Object Simulation Based Surgical Education Programs and Hand Performance(Ieee, 2015) Eyuboglu, Burak Gokberk; Topallı, Damla; Topalli, Damla; Çağıltay, Nergiz; Cagiltay, Nergiz Ercil; Tonbul, Gokcen; Topallı, Damla; Çağıltay, Nergiz; Information Systems Engineering; Software Engineering; Information Systems Engineering; Software EngineeringThe performance of the left-and right-hands of a person may be different from each other. In general, people use one hand with a superior performance compared to the other hand where that hand is preferred for performing daily activities. It is critical to understand their preference for right or left hand use, especially in cases where the skills should be improved to use both hands precisely in activities required special abilities such as endoscopic surgical operations. A better understanding of these cases will improve the quality of existing surgical education programs, and make a major contribution specifically in designing, improving and managing of simulation-based instructional technologies. In this study, the right-and left-hand preferences (handedness) of people are analyzed from the literature and a simulation-based experimental study is conducted in order to examine the performance differences of the participants while using their right and left hands. The results of this study aimed to guide the curriculum designers and instructional system developers for better designing and developing simulation-based surgical education programs.Article A User Task Design Notation for Improved Software Design(Peerj inc, 2021) Ozcan, Eda; Topalli, Damla; Tokdemir, Gul; Cagiltay, Nergiz ErcilSystem design is recognized as one of the most critical components of a software system that bridges system requirements and coding. System design also has a significant impact on testing and maintenance activities, and on further improvements during the lifespan of the software system. Software design should reflect all necessary components of the requirements in a clear and understandable manner by all stakeholders of the software system. To distinguish system elements, separation of concerns in software design is suggested. In this respect, identification of the user tasks, i.e., the tasks that need to be performed by the user, is not currently reflected explicitly in system design documents. Our main assumption in this study is that software quality can be improved significantly by clearly identifying the user tasks from those that need to be performed by the computer system itself. Additionally, what we propose has the potential to better reflect the user requirements and main objectives of the system on the software design and thereby to improve software quality. The main aim of this study is to introduce a novel notation for software developers in the frame of UML Activity Diagram (UML-AD) that enables designers to identify the user tasks and define them separately from the system tasks. For this purpose, an extension of UML-AD, named UML-ADE (UML-Activity Diagram Extended) was proposed. Afterwards, it was implemented in a serious game case for which the specification of user tasks is extremely important. Finally, its effectiveness was analyzed and compared to UML-AD experimentally with 72 participants. The defect detection performance of the participants on both diagrams with two real-life serious game scenarios was evaluated. Results show a higher level of understandability for those using UML-ADE, which in turn may indicate a better design and higher software quality. The results encourage researchers to develop specific design representations dedicated to task design to improve system quality and to conduct further evaluations of the impact of these design on each of the above mentioned potential benefits for the software systems.Article Citation - WoS: 7Citation - Scopus: 7Classification of Intermediate and Novice Surgeons' Skill Assessment Through Performance Metrics(Sage Publications inc, 2019) Topalli, Damla; Cagiltay, Nergiz ErcilBackground. Endoscopic surgeries have become an alternative for open procedures whenever possible. For such types of operations, surgeons are required to gain several skills, whose development needs hands-on practice. Accordingly, gaining these skills today is a challenge for surgical education programs. Despite the development of several technology-enhanced training environments, there are still problems to better integrate these technologies into educational programs. For an appropriate integration, it is critical to assess the skill levels and adapt the training content according to the trainees' requirements. In the literature, there exist several methods for assessing these skill levels. However, there are still problems in practice for objective and repetitive assessment. Methods. The present study aims to estimate the skill levels of participants in surgical training programs in an objective manner by collecting experimental data from residents in an endoscopic surgical simulation environment and gathering performance metrics. Results. It is shown that, by comparing the results of a number of classification algorithms for the best accuracy estimation and feature set, the "novice" and "intermediate" skill levels can be estimated with an accuracy of 86%. Conclusions. The outcomes help surgical educators and instructional system designers to better assess the skill levels of the trainees and guide them accordingly. In addition, objective assessments as highlighted in this study can be beneficial when designing technology-enhanced adaptive learning environments.
