Problem-solving Process Research Articles

The Relationships between the Resilience Quotient of Undergraduate Students in the Educational Psychology and Guidance for Teachers Course and Their Achievement of the Course Learning Outcomes: A Qualitative Study

The purpose of this qualitative research was to examine the relationships between the resilience quotient (RQ) of undergraduate students in the Educational Psychology and Guidance for Teachers course and their achievement of the course learning outcomes. The sample comprised 38 second-year students from the Faculty of Education of Kasetsart University enrolled in the course during the second semester of the 2023 academic year. The data were collected through in-depth structured interviews consisting of seven open-ended questions and analyzed using a content analysis approach. It was found that the subjects employed various RO-related strategies to achieve the learning goals according to the course learning outcomes, including adopting relaxation techniques, engaging in enjoyable activities and hobbies, and sustaining self-management by prioritizing tasks and making decisions carefully. When faced with academic challenges, especially when the learning outcomes were not met, the subjects mindfully analyzed the problems, set goals for dealing with them, planned accordingly, and took corrective actions. They also sought guidance from instructors and used the feedback in the problem-solving process while maintaining resilience. From the subjects’ perspectives, the skills in maintaining RQ during a scholastic journey involved accepting reality, reviewing and addressing problems, and continuously improving oneself. The present study underlines the importance of psychological well-being and effective guidance in students’ academic success and personal development.

Educational Robotics and Preservice Teachers: STEM Problem-Solving Skills and Self-Efficacy to Teach

Integrating STEM education within the elementary school science curriculum in Ontario, Canada, elevated the expectation for elementary preservice teachers to teach STEM skills such as problem-solving through coding. Research shows that educational robotics can promote STEM knowledge and skills. This mixed methods study investigates the effect of an educational robotics intervention on preservice teachers’ STEM problem-solving skills and their self-efficacy to teach with educational robotics during the COVID-19 pandemic. Data sources included a pre- and post­questionnaire on problem-solving, a pre- and post- self-efficacy teaching questionnaire, a problem-solving worksheet, and transcripts of group interactions. Quantitative findings were statistically significant for preservice teachers’ self-efficacy to teach with educational robotics (large effect size) and for problem-solving competencies (small effect size). Using a STEM problem-solving framework, two preservice teacher group interactions were analysed. Qualitative findings indicated that preservice teachers exhibited similar problem-solving processes as STEM experts, but preservice teachers’ prior STEM knowledge limited the types of decisions considered at the problem-solving stages. The study provides an example of how preservice teachers’ self-efficacy to teach with educational robotics was developed within a science education course and lends unique insights into the problem-solving processes these preservice teacher groups engaged in.

Critical thinking of masculine students with impulsive cognitive style in solving geometry problems

The problem and the aim of the study. Critical thinking has a vital role in education because it is one of the essential skills that students must possess to face future challenges. By thinking critically, students can learn how to identify problems, analyze information from various sources, evaluate alternatives, and make logical decisions. In solving mathematical problems, it is common to find masculine students who are highly capable and impulsive (fast in solving problems). Therefore, this study aims to explore the critical thinking of masculine students with an impulsive cognitive style in solving geometry problems. Research methods. The study involved 70 junior high school students sitting in grade 9. The selection of research subjects was carried out in three public schools in Pringsewu Regency, Lampung province in Indonesia, namely Public Junior High Schools in Pringsewu Regency-Lampung, namely: SMP Negeri 2 Pringsewu, SMP N 4 Pringsewu and SMP N 1 Ambarawa. The research subjects were masculine students with moderate mathematics ability and above who had an impulsive cognitive style. In recruiting the research subjects, the gender questionnaire, cognitive style questionnaire, and math ability test were used. Moreover, the research is a descriptive qualitative study. The primary data was collected through geometry problem-solving test results and in-depth interviews. Several procedures were also set for analyzing critical thinking data to achieve these goals. Lastly, data analysis was done through data reduction, presentation, interpretation, and conclusion drawing. Results. After 70 students were given a gender questionnaire, cognitive style and math ability test with a minimum score of 75 found as many as 7 students with masculine gender with impulsive cognitive style with high math ability. With scores (mean score masculine: 4.2 ≥ 4: median score masculine) and (mean score feminine: 4.6 ≤ 5 median score feminine). However, one student (S1) was recommended by the math teacher at the school where the research was conducted to be used as a research subject. After in-depth analysis and interviewing S1, it was found that there were 5 aspects of critical thinking in solving geometry problems on the circle theme, namely aspects of clarity, relevance, depth, logicality, and significance. In conclusion, from the qualitative data analysis it was found that during the problem solving process this study has shown aspects of critical thinking namely aspects of clarity, relevance, depth, logicality, and significance.

국내 간호대학생의 임상수행능력 관련 변인에 대한 체계적 문헌고찰 및 메타분석

The purpose of this study is to conduct a systematic review and meta-analysis of variables related to clinical competence of Korean nursing students. A total of 63 studies were selected from domestic studies published from January 2014 to December 2023 and analyzed using the R program. The effect size was analyzed by dividing the effect of clinical competence into cognitive, affective, and psychomotor domains. Clinical competence related variables were derived from 27 variables in 3 domains. The effect sizes of the average clinical competence of all three domain variables showed large effect sizes, with the cognitive domain being the largest at 0.65, followed by the psychomotor domain at 0.62 and the affective domain at 0.52. Among all variables, problem-solving process had the largest effect size at 0.87, and character had the second largest effect size at 0.81. In the control effect analysis, there was statistical significance depending on the measurement tool in the cognitive domain, and there was a statistical difference depending on the number of subjects and the measurement tool in the psychomotor domain. Based on the results of this study, I propose that variables with a large effect size on clinical competence be set as learning outcomes and utilized to improve clinical practical education programs.

Research on unmanned vehicle trajectory planning problem based on genetic algorithm

In this study, a method based on Genetic Algorithm and optimal control for path planning of an unmanned vehicle is proposed. This work discretizes the optimal control problem into a nonlinear programming problem and resolves it to enhance the initial answer. All physical quantities are incorporated as variables into the problem-solving process and limited by an objective function to derive the optimum trajectory.

Face and content validity of the EMPOWER-UP questionnaire: a generic measure of empowerment in relational decision-making and problem-solving

BackgroundDecision-making and problem-solving processes are powerful activities occurring daily across all healthcare settings. Their empowering potential is seldom fully exploited, and they may even be perceived as disempowering. We developed the EMPOWER-UP questionnaire to enable assessment of healthcare users’ perception of empowerment across health conditions, healthcare settings, and healthcare providers’ professional backgrounds. This article reports the initial development of EMPOWER-UP, including face and content validation.MethodsFour grounded theories explaining barriers and enablers to empowerment in relational decision-making and problem-solving were reviewed to generate a preliminary item pool, which was subsequently reduced using constant comparison. Preliminary items were evaluated for face and content validity using an expert panel of seven researchers and cognitive interviews in Danish and English with 29 adults diagnosed with diabetes, cancer, or schizophrenia.ResultsA preliminary pool of 139 items was reduced to 46. Independent feedback from expert panel members resulted in further item reduction and modifications supporting content validity and strengthening the potential for generic use. Forty-one preliminary items were evaluated through 29 cognitive interviews, resulting in a 36-item draft questionnaire deemed to have good face and content validity and generic potential.ConclusionsFace and content validation using an expert panel and cognitive interviews resulted in a 36-item draft questionnaire with a potential for evaluating empowerment in user-provider interactions regardless of health conditions, healthcare settings, and healthcare providers’ professional backgrounds.

Analysis of Students' Critical Thinking Skills Through the Pakem Learning Model in Science Subject Class VI SD Negeri 78 Palembang

Critical thinking ability is a high-level thinking ability that aims to make reasonable decisions to help the problem solving process actively and skillfully in analyzing, applying and evaluating information obtained or resulting from observations of elementary school students. The learning model is one of the important things in creating an active, creative, effective and enjoyable learning process. The PAKEM model is an appropriate model to use in the learning process. This research aims to determine the critical thinking abilities of class VI students using the PAKEM model in science learning at SD Negeri 78 Palembang. This research uses an experimental method with a quantitative approach. The subjects in this research are 25 VIC class elementary school students. Data collection techniques in this research use observation, tests, interviews and documentation. Data analysis techniques use the normality test, homogeneity test and T-Test. The results of this research found that there were 8 students with high critical thinking skills, with a score range of 85-100, getting a percentage of 32%. Medium critical thinking ability, totaling 12 students, with a score range of 75-80, got a percentage of 48% and low critical thinking ability, totaling 5 students, with a score range of 65-70, got a percentage of 20%. The results of the critical thinking skills of class VIC students using the PAKEM model in science learning at SD Negeri 78 Palembang overall students reached 82.4% in the good category.

Parents' use of sustained shared thinking during joint mathematics activities with young children: Aninvestigation of its measurement, antecedents, and outcomes.

There is currently a dearth of tools to assess parents' use of effective interactive strategies for supporting early mathematics learning. One potential such strategy is sustained shared thinking. This study therefore constructed and validated a scale for measuring parents' use of sustained shared thinking during joint mathematics activities with young children, and examined its antecedents and outcomes. Four hundred and sixty-six parents completed a questionnaire about their conceptions of mathematics teaching and learning, home practices, as well as their kindergarten children's approach and avoidance motivation to learn mathematics. Additionally, the children were tested on numeration skills. Results showed that our new scale has three factors: exchanging ideas with children about mathematical problem-solving processes, creating a child-centred atmosphere for mathematics learning, and engaging children in mathematical thinking. Parents' uses of these three strategies were predicted by their constructivist conception of mathematics teaching and learning, and were differentially associated with the children's numeration skills, approach, and avoidance motivation to learn mathematics. Potential uses of our new scale in future home mathematics environment research are discussed.

Democratic Civic Engagement in Occupational Therapy

Democratic adult education (AE) promotes social change through active and pragmatic learning. This learning considers the impact of individual, community, organization, and broader cultural influences. Democratic civic engagement (DCE) in higher education institutions (HEIs) emphasizes inclusive participation and reciprocity. These values are deeply grounded in democratic adult education (AE) practice and community problem-solving processes in practice-based professions like Occupational Therapy (OT). In this article, we examine a new graduate OT program in the northeast region of the US and the roles of OT stakeholders as co-creators and co-educators in both institutional and community education settings. We highlight how this program is grounded in DCE which helps bridge the gap between an academic program (OT within HEI) and the broader social environment (interlocking systems not built to support diverse lived experiences) using a DCE model.

Readiness Framework for Behavioral Strategies: Assessing Low-Intensity Approaches Prior to High-Intensity Interventions

Challenging behavior can impact the learning environment and prevent educators and students from demonstrating behavioral and academic success. Schools and districts may implore a framework of tiered systems of support to respond to students struggling behaviorally or academically. These systems provide a decision-making process to aid educators’ use of low-intensity strategies before utilizing high-intensity strategies. This process can help school teams use their time and resources efficiently. This article presents a flowchart outlining guiding questions within a problem-solving process as the first step in remedying behavior of concern. This flowchart can be utilized by schools with an existing tiered framework or can support the decision-making process for schools that do not utilize a tiered system of support. A vignette is also included to demonstrate its practical use in the classroom.

Fostering meta-moral cognitive skills among pre-service teachers using creative problem-solving processes

Acknowledging strengths and weaknesses of an ethical judgment, called meta-moral cognitive skills, enables pre-service teachers to make better decisions. Engaging in critical thinking with creative problem-solving can critically evaluate ethical decision-making processes by analysing their different stages. Thus, this study investigated whether creative problem-solving can foster meta-moral cognitive skills. The researchers analysed solutions for a vignette based on real-life experience involving an ethical issue by 51 pre-service teachers using creative problem-solving processes: problem definition, information gathering, concept selection, conceptual combination and reorganization, idea generation, idea evaluation, solution monitoring, and implementation planning. A qualitative analysis of the responses showed that creative problem-solving supported pre-service teachers in identifying the rationale and criticisms of their ethical judgments and limitations in their proposed solutions. The implication is that it is crucial for prospective teachers to undergo training in creative problem-solving of various ethical dilemmas as part of their curriculum.

Extensionist’s Guide to Farm and Site Visits

Farm and site visits are a major component of Extension work, whether as a county faculty or state specialist. They serve various purposes, such as informal check-ins, relationship-building, problem-solving, sharing technology, and information collection. While time-consuming, farm visits are often the most effective method for addressing problems and developing deeper connections with stakeholders (Petrzelka, Padgitt, and Windestenn, 1999). These visits provide firsthand knowledge of the issues clients face and are effective in establishing collaborations, assessing needs, understanding agricultural production systems, and validating research applications (Oakley and Garforth, 1985; Seevers and Graham, 2012). This publication explores different facets of farm and site visits, including preparation before the visit, the investigative (problem-solving) process during the visit, and post-visit procedures. Additional resources are included to support client visits and troubleshooting.

Improving group problem solving through awareness of members’ problem-solving preferences

PurposeMany groups in organisations are unsuccessful in problem solving. However, the principle of continuous improvement necessitates that organisations refine their employees’ problem-solving skills. In this mixed-method, field-based lab experiment, we explored the impact of a treatment to enhance the quality of group problem-solving processes.Design/methodology/approachWe focused on the structured problem-solving process in Kaizen Events by differentiating six consecutive phases. About 16 Kaizen Event groups (101 members) participated in a field-based lab experiment that used a lean simulation game to establish a group problem-solving context. Data were collected via video, surveys and group interviews. We examined if a high-quality process is strengthened through group members’ elevated awareness of problem-solving preferences. About 11 groups received a treatment of tailor-made individual feedback to increase awareness of their problem-solving preferences. Additionally, we repeated the experiment in five control groups, where member preferences were not shared.FindingsIn the treatment groups, where problem-solving preferences had been shared, we observed a clear improvement in Kaizen Event process quality and higher problem-solving self-efficacy levels. Moreover, their self-reported Kaizen Event behaviour had changed. Within the control groups, the participants also reported that their problem-solving self-efficacy had improved, but this did not have a positive impact on the quality of the objectively measured Kaizen Event process.Originality/valueBy combining insights from operations management and organisational behaviour, we demonstrate that the structured Kaizen Event problem-solving process improves when group members’ individual problem-solving preferences are shared. We thus add an individual-level variable to the extant models of Kaizen Event success factors. Our results provide fresh insights into how to improve the continuous improvement process within organisations. Kaizen Event stakeholders and their facilitators are offered guidance on how to increase one’s awareness of own and others’ problem-solving preferences in group-based problem-solving events.

Peran External Relation PT KCI Dalam Upaya Meningkatkan Corporate Image

The role of PT KCI's External Relations in efforts to improve its Corporate Image is important to provide a positive view of the public. This cannot be separated from how External Public Relations carries out its role with a managerial concept. This research aims to analyze the role of PT KCI's external public relations. This research uses the concept of Managerial roles. This research method uses qualitative methods, the data collection techniques used are interviews, observation and documentation. The results of this research found the role of External Relations in improving corporate image with expert communication experts, problem-solving process facilitators, communication facilitators and communication technicians. And the obstacles include internal and external obstacles, including operational problems, crisis communication, public and media perceptions, technological challenges, internal challenges, changes in government policy and social issues. The results of this analysis provide insight into the dynamics of the role of PT KCI's external public relations in efforts to improve its corporate image.

Nursing process performance measurement tool based on bloom’s revised taxonomy: A validity and reliability analysis

AimThis study aimed to develop a measurement tool that could evaluate educational approaches by integrating the cognitive dimensions required at each stage of the nursing process and strengthening the connection between education and clinical practice. BackgroundThe nursing process is a core component of nursing practice and supports nurses and nursing students in systematically performing the problem-solving process necessary for patient health management. DesignCross-sectional, methodological study. MethodsA nursing process performance measurement tool that could measure the cognitive dimensions required at each stage of the nursing process was developed based on Anderson’s and Bloom’s revised taxonomy. The data for this study were collected from July to August 2023 at four universities in South Korea. The reliability and validity of the measurement tool were evaluated through a survey conducted on 406 nursing students. Participants were third- and fourth-year nursing students with clinical practice experience, recruited through purposive sampling. ResultsThe developed tool was designed to systematically measure and evaluate each step of the nursing process. This tool consisted of 28 questions, each of which was divided into five assessment questions, six diagnosis questions, six planning questions, five implementation questions and six evaluation questions. Items were rated on a 5-point Likert scale, ranging from 1 (“not at all”) to 5 (“very much”). The measurement score ranged from 28 to 140 points, with higher scores indicating better nursing process performance. The cumulative variance contribution rate of the tool was 68.1 % and the Cronbach’s α value was 0.85 for all items. ConclusionsThis study provides a basis for evaluating educational approaches in nursing curricula by integrating the cognitive dimensions required at each stage of the nursing process. This approach can strengthen the connection between education and clinical practice and can be used not only as a tool to systematically evaluate the learning outcomes of nursing students but also as a standardized nursing process guide.

Meningkatkan Keterampilan Berpikir Kritis dengan Materi Gereja sebagai Umat Allah Menggunakan Model Problem Based Learning Berbantuan Media Audio Visual Fase F Kelas XI SMA Negeri 1 Sorkam Barat Kabupaten Tapanuli Tengah

This researcch aims to apply the Problem Based Learning model to improve critical thinking skills of Phase F students of Class XI of Senior High School SMA N 1 Sorkam Barat. The results of the analysis showed a significant increase in students' critical thinking skills in the application of the Problem Based Learning model in each cycle for two meetings. The results of the observation showed that each meeting got a good average score. The overall achievement of activities in the first meeting reached 95% for the assessment of observer 1 and 96.25% for the assessment of observer 2. The overall achievement of activities in the second meeting reached 97.5%. The teacher's ability to Orient Students to Problems in cycle I increased by 50% to 83.3% with an increase of 66.7%. The teacher's ability to Organize Students to Learn in cycle I increased by 80% to 90% with an increase of 12.5%. The teacher's ability to Assist Research is 100%. The teacher's ability to Develop and Present Work Results in Cycle I increased by 83.3% to 100% with an increase of 20%. Teachers' ability in Evaluating the Problem Solving Process in cycle I increased by 80% to 90% with an increase of 12.5%. Students' ability in Providing Simple Explanations in cycle I increased by 30% to 60% with an increase of 100%. Students' ability in Building Basic Skills increased by 26.7% with an increase of 100%. Students' ability in Making Inferences increased by 40% with an increase of 100%. Students' ability in Providing Further Explanations increased by 26.7% with an increase of 100%. Students' ability in Organizing Strategies and Tactics increased by 33.3% with an increase of 100%. The recommendations of this study include facilitating teachers in implementing effective Problem Based Learning models and expanding project-based and interactive learning approaches.

Meningkatkan Sikap Kritis Siswa dengan Model PBL berbantuan Media Video Fase E Kelas X di SMA Negeri 4 Pematangsiantar

This research aims to enhance the critical thinking skills of 10th-grade students at SMA Negeri 4 Pematangsiantar through the implementation of the Problem-Based Learning (PBL) model, supported by video media. The students' critical thinking is assessed based on their ability to analyze information, distinguish between facts and opinions, and evaluate the reliability of the information they receive, particularly in relation to the influence of mass media. This study uses a Classroom Action Research (CAR) design consisting of two cycles, with each cycle including the stages of planning, implementation, observation, and reflection. The results of the research showed a significant improvement in students' critical thinking from the first cycle to the second. In the first cycle, the average critical thinking score was only 68%, with the main weakness being the evaluation of information reliability. However, after improvements in the second cycle, the average score increased to 90%. Students became more engaged in group discussions, better able to analyze videos, and more critical in evaluating media content. The use of video as a learning medium was also found to be effective in facilitating visual and contextual understanding of the material. The research employed a qualitative method with a descriptive approach. Data collection techniques included observation, interviews, and documentation. The data analysis techniques involved data reduction by selecting raw data into useful information, data presentation in the form of descriptions, graphs, and tables, and drawing conclusions based on the research findings that addressed the research questions. The use of the Problem-Based Learning model, supported by video media, followed the PBL syntax, including steps such as orienting students to the problem, organizing students for learning, guiding individual or group investigations, developing and presenting results, and analyzing and evaluating the problem-solving process. This approach proved effective in enhancing student motivation and independence in critical thinking and responsibility towards the influence of mass media in the 10th-grade class at SMA Negeri 4 Pematangsiantar. In conclusion, the implementation of the PBL model with video media significantly improved students' critical thinking skills. Recommendations include optimizing the use of video, providing more intensive support for students in need, strengthening group discussions, and continuing critical thinking exercises.

Meningkatkan Hasil Belajar Siswa Pada Materi Aku citra Allah Yang Unik dengan Model Problem Based Learning di Kelas VII SMP Negeri 4 Lahewa

The independent curriculum emphasizes the Pancasila student profile. In this classroom action research, the researcher focuses on the dimension of independence which is based on the importance of forming strong character and mental attitudes in the younger generation, especially in facing complex global challenges. Improving learning outcomes through the PBL model on the material I Am the Unique Image of God. Promises. The Class Action Research Report in this study aims to find out whether student learning achievement has increased after implementing the Problem Based Learning Model in Catholic Religious Education and Character Education Subjects for Students in Class VII of SMPN 4 Lahewa in 2023/2024? The research object is the Problem Based Learning (PBL) Model, the form of research is Classroom Action Research with a cycle model, each cycle consists of four stages including: planning stage, implementation stage, observation stage and reflection stage. The data analysis technique used consists of data reduction by selecting raw data into information, data presentation, namely presenting data in the form of descriptions, graphs, tables and drawing conclusions by making conclusions from research results that refer to the problem formulation. The use of the Problem Based Learning model according to the syntax which includes orienting students to problems, organizing students to learn, guiding individual and group investigations, developing and presenting results, analyzing and evaluating the problem solving process, is effective in helping increase learning motivation and student independence in material I Am the Unique Image of God in class VIII of SMPN 4 Lahewa The data collection technique used by researchers was to observe students' activities guided by the P3 rubric. The results of observations from the three participants from the five students in cycle 1 averaged 74% and in cycle II 88% while the learning outcomes were in cycle! I the average was 81.5%, and in cycle II it increased to an average of 86.2%. The increase was seen to be 14% higher than before.

Meningkatkan Hasil Belajar Peserta Didik Materi Gereja Sebagai Umat Allah Dengan Metode PBL Berbantuan Audio Visual Fase F Kelas XI SMA Negeri 6 Pontianak

Education in Indonesia faces complex challenges, so the government, educational institutions, and society continue to strive to improve access, quality, and relevance of education to form a young generation that is skilled, competitive, and ready to face the challenges of the 21st century. In the context of the Independent Curriculum, Catholic religious education in Indonesia emphasizes the development of religious understanding, moral values, and Catholic spirituality for students, while paying special attention to strengthening the Pancasila Student Profile. This research focuses on the dimension of knowledge and motivation of students to form strong character and mentality for the younger generation in facing various global challenges. Based on the data from the learning evaluation results at SMA Negeri 6 Pontianak, it shows that students' understanding of the Church's material as God's People is still not optimal. One of the reasons is the use of learning methods that are less varied and do not involve students actively in the learning process. Conventional learning models often make students passive and less motivated to dig deeper into the material being studied. So to face this condition, educators need to design a relevant and interesting learning process. One approach that can be applied is Problem Based Learning or problem-based learning. The objectives of this study are to: (1) identify the effectiveness of the Problem Based Learning method in increasing students' understanding of the material of the Church as God's People in grade XI of SMA Negeri 6 Pontianak; (2) seeing an increase in the active participation of students during learning on the material of the Church as God's people in class XI of SMA Negeri 6 Pontianak; (3) measuring the improvement of learning outcomes after the application of the Problem Based Learning method on the material of the Church as God's people in class XI of SMA Negeri 6 Pontianak. This study uses a qualitative method with a descriptive approach. Data collection techniques include observation, interviews, written tests, and documentation. Data is analyzed through data reduction, presentation in the form of descriptions, graphs, or tables, and drawing conclusions in accordance with the formulation of the problem. The use of the Problem Based Learning model that follows its syntactic steps, such as orientation to the problem, organizing students to learn, guiding individual and group investigations, developing and presenting results, and evaluating the problem-solving process, has proven to be effective in improving students' learning outcomes on the material of the Church as a people of God Phase F class XI SMA Negeri 6 Pontianak.

The Evolution of Students’ Ability to Identify and Solve Different Types of Translation Problems: Insights from a Longitudinal Process and Product Study

Problem-solving is a multi-faceted activity, which lies at the very heart of the translation process and requires the effective operation of translation competence (TC). This article investigates how a group of undergraduate students who participated in a comprehensive longitudinal study into the development of TC approached three different types of prototypical translation problems before and after receiving 7.5 months of translator education. The study examines 315 problem-solving paths, focusing in particular on verbal (but also non-verbal) evidence confirming students’ awareness of the nature of the problems, the strategicness of the problem-solving process, and the plausibility of the final solutions provided.