Precision of customized surgical osteotomy guide (CSOG) in mandibular reconstruction with a customized implant

2019 ◽  
Vol 25 (10) ◽  
pp. 1601-1623
Author(s):  
Sandeep W. Dahake ◽  
Abhaykumar M. Kuthe ◽  
Mahesh B. Mawale
Keyword(s):  
Surgical Planning ◽  
Total Error ◽  
Tumor Resection ◽  
Mandibular Reconstruction ◽  
Control Group ◽  
Implant Fixation ◽  
Content Type ◽  
Mandibular Tumor ◽  
Hand Tumor ◽  
Experimental Group

Purpose This study aims to find the usefulness of the customized surgical osteotomy guide (CSOG) for accurate mandibular tumor resection for boosting the accuracy of prefabricated customized implant fixation in mandibular reconstructions. Design/methodology/approach In all, 30 diseased mandibular RP models (biomodels) were allocated for the study (for experimental group [n = 15] and for control group [n = 15]). To reconstruct the mandible with customized implant in the experimental group, CSOGs and in control group, no CSOG were used for accurate tumor resections. In control group, only preoperative virtual surgical planning (VSP) and reconstructed RP mandible model were used for the reference. Individually each patient’s preoperative mandibular reconstructions data of both the groups were superimposed to the preoperative VSP of respective patient by registering images with the non-surgical side of the mandible. In both the groups, 3D measurements were taken on the reconstructed side and compared the preoperative VSP and postoperative reconstructed mandible data. The sum of the differences between pre and postoperative data was considered as the total error. This procedure was followed for both the groups and compared the obtained error between the two groups using statistical analysis. Findings The use of CSOG for accurate tumor resection and exact implant fixation in mandibular reconstruction produced a smaller total error than without using CSOG. Originality/value The results showed that, benefits provided with the use of CSOG in mandibular reconstruction justified its use over the without using CSOG, even in free hand tumor resection using rotating burr.

An alternative evaluation: online puzzle as a course-end activity

2015 ◽  
Vol 12 (3) ◽  
pp. 169-182 ◽  
Author(s):  
Zülfü Genç ◽  
Emrah Aydemir
Keyword(s):  
Student Achievement ◽  
Information Technologies ◽  
Traditional Instruction ◽  
Control Group ◽  
Content Type ◽  
Learning Retention ◽  
Alternative Evaluation ◽  
Usability Tests ◽  
Positive Attitudes ◽  
Experimental Group

Purpose – The purpose of this study is to determine whether the use of online puzzles in the instructional process has an effect on student achievement and learning retention. This study examined students ' perception and experiences on use of puzzle as an alternative evaluation tool. To achieve this aim, the following hypotheses were tested: using puzzle activities in lessons increases student achievement, using puzzle activities in lessons increases retention of information learned by the students and students have positive attitudes toward using puzzle activities in lessons. This study uses an online puzzle system (OPS) by which instructors can prepare puzzle activities for students to solve online. The technical and functional properties of the OPS developed and used are beyond the scope of this study. Design/methodology/approach – A pre- and post-test with control group experimental research design was implemented. Study participants were tenth-grade students in the Information Technologies Department of Gazi Anatolia Technical and Industrial Vocational School in Elazig during the 2011-2012 year. Thirty students each were chosen for the experimental and control groups, totaling 60 students. During the study, a traditional instruction method was used for the control group, while the experimental group received both traditional instruction and performed activities using the OPS. The subject Fundamentals of Networking was chosen, and the implementation period lasted six weeks. Four weeks after completion of the study, the achievement level of students was calculated again to test learning retention. Findings – The first hypothesis of the study is, “Using puzzle activities in the lessons increases the achievement of the students”. In the teaching of the Networking Fundamentals Module of Information Technologies Course for tenth graders, a significant difference in favor of the experimental group was seen, where online puzzle activities were used in terms of student achievement. The second hypothesis of the study is, “Using puzzle activities in the lessons increase the retention of the information learned by the students”. Four weeks after completion of the study, the achievement levels of the students were calculated again to test learning retention. The learning retention of the students in the experimental group is higher than that of the students in the control group. In addition, students in the experimental group had positive attitudes toward online puzzle activities. Doing online puzzle activities accelerates learning for students and helps them learn networking terms by creating an enjoyable environment. Research limitations/implications – The current study was limited to six weeks of implementation during the 2011-2012 school year at Gazi Anatolia Technical and Industrial Vocational High School in Elazig. Similar studies could be conducted in other schools for longer periods and at different levels, so the findings can be compared with those of the current study. This study is further limited to an Information Technologies Course. Studies can be conducted with various courses using appropriate online puzzle activities. Puzzle types other than the crossword used in the OPS of the current study should be developed and added. The system should also be developed by visual multimedia objects, allowing it to be more interactive. Moreover, in the development process of such an OPS, educators, software designers, psychologists and scholars from other fields should work together. Usability tests should be conducted to improve user-friendliness of the system by adding various features related to functionality and visuality. Practical implications – From the findings of the study, it can be concluded that online puzzle activities help students understand subjects better and aid in exam preparation. Moreover, these activities are effective for students in terms of increasing understanding and retention of learned terms in and outside class, forming valuable learning experiences. Doing online puzzle activities in class as a course-end activity can be said to be more effective in students’ learning than doing them outside of class. Crossword puzzles offer opportunities for students to accelerate learning by quickly mastering new words and phrases and by directing students to more actively interact with computer-related vocabulary and terminology as compared with the rote learning method. Originality/value – Paper-based puzzles are frequently used, and there are few Web-based puzzles. Despite their frequent use, preparing and evaluating paper-based puzzles can require a significant time investment; another disadvantage is the lack of immediate feedback. Based on the literature review, there is no dynamic OPS used for educational purposes. This study uses an OPS by which instructors can prepare puzzle activities for students to solve online. The originality of this study is OPS features and puzzle generation mechanism. The system presents a user-friendly interface with Turkish character (or any language) support and number-writing properties.

The effect of body-movement teaching, learning motivation and performance

2016 ◽  
Vol 24 (3) ◽  
pp. 414-437 ◽  
Author(s):  
Satoshi Sugahara ◽  
Hisayo Sugao ◽  
Steven Dellaportas ◽  
Takahiro Masaoka
Keyword(s):  
Body Movement ◽  
Learning Motivation ◽  
Control Group ◽  
Content Type ◽  
Entry Level ◽  
Quasi Experimental ◽  
And Performance ◽  
Teaching Learning ◽  
The Impact ◽  
Experimental Group

Purpose This research applies a quasi-experimental research method to investigate the impact of an innovative resource titled “Accounting Exercise” (teaching intervention using physical movement and lyrics) on learning motivation and performance on a group of students enrolled in a first-year undergraduate accounting course in Japan. Design/methodology/approach Five classes were randomly assigned to either an experimental group (two classes) or a control group (three classes). In the experimental group, 90 students participated in a 15-min “Accounting Exercise” at the commencement of lectures over three consecutive weeks. The remaining 133 students assigned to the control group did not participate in the Accounting Exercise. Findings The findings indicate that the Accounting Exercise provided stimuli in maintaining students’ learning motivation. This finding is important for entry-level students where learning motivation has the potential to influence students’ future decisions on major areas of study and career choices. Originality/value This finding is important for entry-level students where future career options are decided. This effect is also believed to contribute to reducing the declining numbers of students in accounting majors.

scholarly journals Assessing the impacts of school entrepreneurial initiatives

2019 ◽  
Vol 26 (2) ◽  
pp. 273-288 ◽  
Author(s):  
Matthias Pepin ◽  
Etienne St-Jean
Keyword(s):  
Public Schools ◽  
Positive Impact ◽  
Personal Control ◽  
School Level ◽  
Control Group ◽  
Content Type ◽  
Entrepreneurial Attitudes ◽  
Enterprise Education ◽  
K 12 ◽  
Experimental Group

Purpose Many countries around the world have now introduced entrepreneurship into their curricula and educational practices, starting at the elementary school level. However, recent studies show the relative (un)effectiveness of K-12 enterprise education on diverse learning outcomes. The purpose of this paper is to report on a research aimed at assessing the impacts of enterprise education on students’ entrepreneurial attitudes. Design/methodology/approach The authors conducted a quasi-experiment between May and June 2017 to assess the entrepreneurial potential of students at Elementary Cycle 3 (10–12 years) in Quebec, Canada. Relying on attitude theory, the authors used Athayde’s Attitudes toward Enterprise for Young People test, which assesses students’ entrepreneurial potential through four entrepreneurial attitudes (leadership, creativity, achievement and personal control). The experimental group consisted of 11 classes which had conducted an entrepreneurial project during the 2016–2017 school year (n = 208 students), while the 7 classes of the control group had not (n=151 students). Findings At first glance, data showed no difference between the two groups. Further investigation showed that private and Freinet (public) schools’ students, both from the control group, show significantly higher leadership scores than those of the experimental group. In-depth analyses also show that increasing the number of entrepreneurial projects significantly impacted three of the four attitudes assessed, although negligibly. Research limitations/implications Taken together, those results question the relevance of single entrepreneurial activities in developing students’ entrepreneurial attitudes. They also suggest the positive impact of a progressive, constructivist pedagogy in developing such entrepreneurial attitudes. Moreover, the paper raises several factors likely to impact students’ entrepreneurial attitudes for further research. Originality/value K-12 enterprise education remains an understudied context, largely crossed by unproven statements. This research contributes to understand and give direction to educational initiatives targeting the development of young students’ entrepreneurial attitudes.

Effectiveness of social media for weight reduction on overweight undergraduate students in Thailand

2019 ◽  
Vol 34 (2) ◽  
pp. 90-99
Author(s):  
Tummatida Pattanapongsa ◽  
Wiroj Jiamjarasrangsi ◽  
Piya Hanvoravongchai ◽  
Dumrongsak Pekthong
Keyword(s):  
Social Media ◽  
Weight Loss ◽  
Health Education ◽  
Undergraduate Students ◽  
Support Services ◽  
Control Group ◽  
Content Type ◽  
Online Social Media ◽  
The Mean ◽  
Experimental Group

Purpose Addressing overweight in the population is an important public health challenge. Use of social media such as Facebook has been proposed as a platform to deliver weight loss interventions to influence behavior change to tackle obesity. The purpose of this paper is to compare the effectiveness of weight loss education and support interventions delivered through online social media (experimental group) vs conventional method (control group). Design/methodology/approach The six-month experimental study comprised of a four-month intervention and a two-month follow up from May 2016 to October 2016. All faculties in a university were randomly selected into the experimental or control group. Then, undergraduate students (n=66) were randomly recruited from each faculty into the corresponding groups (experimental group=33 and control group=33). Both groups received health education and support services through either Facebook or the offline support system. The mean differences of main outcomes including body mass index (BMI) and waist to height ratio (WHtR) between groups at baseline and fourth month and baseline and sixth month were compared using t-test. Findings The results show those in the experimental group had significantly better outcomes in term of BMI and WHtR at the end of four-month intervention with the mean difference (95% CI) at 0.7 (0.1, 1.3) and 0.01 (0.00, 0.01), respectively. The differences at the end of the study, however, became insignificant. Originality/value The health education and support services through Facebook can be used in a weight loss promotion program for BMI and WHtR reduction. On a larger scale to replace conventional programs, a long-term continuous measure is needed.

A model of entrepreneurship education in franchising – application of outside-in marketing with a behavioural focus

2020 ◽  
Vol 35 (1) ◽  
pp. 116-133
Author(s):  
Sara Quach ◽  
Scott Weaven ◽  
Park Thaichon ◽  
Debra Grace ◽  
Lorelle Frazer
Keyword(s):  
Planning Process ◽  
Entrepreneurship Education ◽  
Communication Strategy ◽  
Control Group ◽  
Post Intervention ◽  
Content Type ◽  
Implementation Evaluation ◽  
Quasi Experimental ◽  
On Line ◽  
Experimental Group

Purpose Drawing on an outside-in marketing perspective, this paper aims to outline the development, implementation, evaluation and reflection of a real-world entrepreneurship education (EE) intervention with cognitive, affective and ultimately behavioural objectives. Design/methodology/approach A specific and uniform EE program specifically targeted to current “would be” entrepreneurs who were investigating the franchising business model was developed, focusing on the behavioural outcomes. The effectiveness of the EE intervention was evaluated using a quasi-experimental research design, which involved franchisees who had not participated in the EE intervention (control group) and franchisees who had participated in the EE intervention (experimental group). The administration of the national on-line survey yielded a total of 520 responses (194 in the experimental group and 326 in the control group). Findings The planning process in the pre-intervention stage included situation analysis, objective setting and decisions in relation to the communication strategy, i.e. content and mode. The effectiveness of the EE intervention was evaluated in the post-intervention stage. The findings indicate that EE intervention resulted in participants’ positive cognitive, affective and behavioural outcomes such as performance and relationship management. Finally, following a reflection process, additional elements covering topics related to work-life balance were incorporated into the module pertaining to an individual’s suitability to become a franchisee. Originality/value This paper proposes a conceptual framework that represents an outside-in EE approach whereby problems, audiences, objectives and communication strategies (content and method) are strategically intertwined to produce relevant, measurable and diagnostic behavioural outcomes. The EE intervention can also improve the B2B relationship between actors in a business network.

Edutainment in childhood obesity prevention: a complex topic

2020 ◽  
Vol 21 (3) ◽  
pp. 289-304
Author(s):  
Diana Sintra ◽  
Luísa Agante
Keyword(s):  
Public Schools ◽  
Childhood Obesity ◽  
Obesity Prevention ◽  
Food Choices ◽  
Healthy Food ◽  
Control Group ◽  
Older Children ◽  
Childhood Obesity Prevention ◽  
Content Type ◽  
Experimental Group

Purpose The purpose of this paper is to see if edutainment containing only healthy food can change children’s preferences and food choices toward healthy eating, especially in overweight or obese children, and if the children’s self-regulation, emotional overeating and parents that use food as a reward would influence those changes. This is important because childhood obesity is one of the biggest public health problems of the 21st century. Design/methodology/approach The authors conducted a study in two public schools (total 189 children) with a between-subjects experimental design (control vs experimental group), where children in experimental group watched an episode of Nutri Ventures series without unhealthy foods. Findings The results showed no differences in both children’s preferences and children’s food choices between the control and experimental group, with exception of older children, and contrary to our expectations. Older children in the experimental group chose more unhealthy food than children in the control group. The authors also saw differences in food choices between “emotional overeating” groups, where the children in “high” group tended to choose less healthy food items, especially in the experimental group of children. This leads the authors to believe that isolated edutainment may not be enough to change preferences and food choices; instead it might even have an opposite effect. Originality/value This study aimed to identify if edutainment containing only healthy food could be more effective in childhood obesity prevention but instead it showed how complex the whole topic can be.

scholarly journals Observation on the Effect of Local Flap Transfer and Sclera Transplantation in Repairing Skin Defect after Eyelid Tumor Operation

2020 ◽  
Vol 4 (1) ◽  
pp. 28-31
Author(s):  
Ying-Hui Ma ◽  
Gang Liu ◽  
Jie Yang
Keyword(s):  
Skin Flap ◽  
Tumor Resection ◽  
Local Flap ◽  
Control Group ◽  
Skin Defect ◽  
Local Skin ◽  
Eyelid Tumor ◽  
Flap Transfer ◽  
Wide Range ◽  
Experimental Group

Introduction: Eyelid tumor refers to the primary eyelid skin and accessory tumors, which not only affects the appearance and vision, and even local infiltration and distant metastasis, thereby threatening life. Surgical resection is the most important and effective treatment, but tumor resection often leads to a wide range of eyelid defects, significantly affecting the shape and function of the eyelid. Therefore, the eyelid defect must be repaired after resection to achieve the purpose of aesthetic appearance and protection of the eyeball. The objective of the study was to analyze the clinical results of local flap transfer and scleral transplantation in repairing skin defect after eyelid tumor operation. Methods: Forty patients with postoperative skin defects of eyelid tumors admitted from December 2008 to December 2018 were taken for analysis and divided into two groups, 20 cases in each group. The control group underwent autologous lip mucous membrane transfer and nearby skin flap, while the experimental group received local skin flap rotation and scleral allograft repair. The clinical effect of repair of the two groups were compared. Results: In the experimental group, the effect of clinical repairs were better, the difference of height of palpebralfissure and the length of palpebral fissure were compared with the control group, which showed statistical significance favoring the experimental group. Conclusion: Local flap transfer and scleral transplantation has better clinical outcome to repair the skin defect after operation of eyelid tumor.

Understanding narrative effects

2019 ◽  
Vol 31 (2) ◽  
pp. 166-191 ◽  
Author(s):  
Aurik Gustomo ◽  
Hary Febriansyah ◽  
Henndy Ginting ◽  
Imelia Martinovita Santoso
Keyword(s):  
Employee Engagement ◽  
Expressive Writing ◽  
Social Implications ◽  
Control Group ◽  
Control Groups ◽  
West Java ◽  
Content Type ◽  
And Control ◽  
The Impact ◽  
Experimental Group

PurposeEmployee engagement has been directly linked to organizational outcomes, and at present, improving employee engagement has increasingly been a main focus for organizations. However, studies evaluating the impact of storytelling interventions on increasing the level of employee engagement are limited. Storytelling is one of the intervention methods that can provide cognitive stimulus to employees, which in turn could change their attitudes toward work including employee engagement. The purpose of this study is to determine the effectiveness of storytelling as an intervention tool for increasing employee engagement in one of the state-owned enterprises (SOEs) in West Java, Indonesia.Design/methodology/approachThis study uses a quantitative method. Employees from a West Java branch of large SOEs were randomly assigned into experimental and control groups. The research design used a pretest and a post-test with an expressive writing method to identify the extent of employee engagement by comparing participant groups and measuring the increase of employee engagement as a result of the storytelling intervention. The experimental group participated in three storytelling sessions that had been set up by panels of experts, while the control group was not given any treatment. The expressive writing analysis was conducted using software that has been developed and tested for validity and reliability. Furthermore, statistical analysis was used to test the results of expressive writing scoring to determine the impact of storytelling interventions.FindingsDirect storytelling is proven to be one of the most effective methods of increasing employee engagement in one of the SOEs in the West Java region. The results of this study showed that there were differences between the experiment and control groups after experiencing a direct storytelling intervention where there was a significant increase in the dimensions of employee engagement. Participants in experimental group had higher scores than participants in control group in most of the employee engagement dimensions. Additionally, expressive writing methods are also proven to be able to provide a stimulus for employees in expressing thoughts, perceptions and motivations for employee engagement in the company.Research limitations/implicationsAs direct storytelling has not been frequently used, especially to improve employee engagement, more studies should be conducted in various settings, with different measurement tools, and in a more controlled environment to confirm the effects of the intervention.Practical implicationsThis paper provides insight into how companies can use direct storytelling to improve the dimensions of employee engagement. Additionally, this research can also be used as a reference by companies in Indonesia, especially SOEs, for applying the same method in an effort to improve work-related attitudes, such as employee satisfaction and organizational commitment.Social implicationsThis study raises social implications in which employees enthusiasm increases in improving personal relationships between employees and storytellers, who are middle or upper management employees. In addition, employees also more appreciate their struggles when starting their careers, so they care more about increasing their role and involvement in the company.Originality/valueThis paper provides resources and information for companies and organizations to improve employee engagement through the implementation of direct storytelling. The focus of this paper is to gain information on the role of direct storytelling in improving employee engagement within a company or organization.

Employing a visualized searching system to assist elementary students’ tactics and success of storybook searching

2017 ◽  
Vol 41 (3) ◽  
pp. 412-427
Author(s):  
Po-Yao Chao ◽  
Chia-Ching Lin ◽  
Ming-Shiang Wu
Keyword(s):  
Elementary Students ◽  
Control Group ◽  
Search System ◽  
Content Type ◽  
Dependent Variables ◽  
Quasi Experimental ◽  
Keyword Searching ◽  
Search Approach ◽  
Reading Activities ◽  
Experimental Group

Purpose The purpose of this paper is twofold: first, to develop a visualized search system utilizing graphical images to represent the story elements and concepts to help elementary students describe and seek their desired storybooks; and second, to explore the effect of the proposed visualized search system on elementary students’ tactics, success, and motivation for seeking storybooks. Design/methodology/approach A quasi-experimental approach was conducted with a sample of 61 elementary students in this study. The students’ tactics, motivation and the success of their storybook searching were addressed as dependent variables for further comparisons of the visualized searching system and a conventional keyword searching system. Findings The results revealed that the students in the experimental group exhibited more frequent tactics and greater motivation for storybook searching than those in the control group. Further χ2 analysis indicated a significant relationship between the searching interface and the success of the students’ storybook searching. Originality/value This paper proposes a new visual search approach which allows young children to search for storybooks by describing an intended storybook in terms of its characters, objects, or the background colors of the cover page. The findings provide some evidence of the effectiveness of the visualized searching interface in terms of promoting young children’s learning through storybook searching and reading activities.

Studies of experimental cervical spinal cord transection

1979 ◽  
Vol 50 (5) ◽  
pp. 629-632 ◽  
Author(s):  
Phillip A. Tibbs ◽  
Byron Young ◽  
Michael G. Ziegler ◽  
R. G. McAllister
Keyword(s):  
Spinal Cord ◽  
Cervical Spinal Cord ◽  
Plasma Concentrations ◽  
Spinal Cord Transection ◽  
Cervical Cord ◽  
Control Group ◽  
Content Type ◽  
Hemorrhagic Necrosis ◽  
Anesthetized Dogs ◽  
Experimental Group

✓ Plasma concentrations of norepinephrine (NE) were measured by a radioenzymatic assay technique before and serially after laminectomy at the C-6 level in 14 anesthetized dogs. In half the animals, no further procedures were carried out (control group); in the other dogs, cervical cord transection was performed in addition to laminectomy (experimental group). Mean plasma NE levels were similar in both groups after laminectomy and before cord interruption. In the control group, NE levels increased gradually for 2 hours after the procedure. In the group with cord transection, however, NE rose immediately after transection to 267% of the baseline value, then fell to 25% of the plasma NE level in the control group at 30 minutes, 29% at 60 minutes, and 15% at 120 minutes. Cervical spinal cord transection, therefore, results in an abrupt but short-lived increase in plasma NE concentrations. These changes in plasma NE levels may explain, at least in part, the hemodynamic alterations and the acute central hemorrhagic necrosis that occur after high spinal cord trauma.

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