Due to the widespread uses of uncertain spatiotemporal data, web ordinary users have access to query these data in various ways. However, users often cannot accurately give query constraints so that the query results may be empty or very few. Traditional algorithms cannot be used to deal with uncertain spatiotemporal data because they have no relaxation query on spatiotemporal attributes. Therefore, in this paper, the authors propose new flexible query algorithms, which add relaxation query processing for spatiotemporal attributes. Considering that XML has great advantages in exchanging and representing spatiotemporal data, they propose an uncertain spatiotemporal data model based on XML. According to the different number of relaxing attributes, they give SingleRelaxation algorithm and MultipleRelaxation algorithm. In addition, a T-List structure is designed to quickly locate the nodes' positions of uncertain spatiotemporal data, and RSort algorithm is proposed to sort accurate query results and extended query results. The experimental results show the superiority of the approach.
{"title":"Query Relaxation and Result Ranking for Uncertain Spatiotemporal XML Data","authors":"Luyi Bai, Jinyao Wang, Chengyuan Zhang, Xiangfu Meng","doi":"10.4018/jdm.313970","DOIUrl":"https://doi.org/10.4018/jdm.313970","url":null,"abstract":"Due to the widespread uses of uncertain spatiotemporal data, web ordinary users have access to query these data in various ways. However, users often cannot accurately give query constraints so that the query results may be empty or very few. Traditional algorithms cannot be used to deal with uncertain spatiotemporal data because they have no relaxation query on spatiotemporal attributes. Therefore, in this paper, the authors propose new flexible query algorithms, which add relaxation query processing for spatiotemporal attributes. Considering that XML has great advantages in exchanging and representing spatiotemporal data, they propose an uncertain spatiotemporal data model based on XML. According to the different number of relaxing attributes, they give SingleRelaxation algorithm and MultipleRelaxation algorithm. In addition, a T-List structure is designed to quickly locate the nodes' positions of uncertain spatiotemporal data, and RSort algorithm is proposed to sort accurate query results and extended query results. The experimental results show the superiority of the approach.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42655016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Using the background of the problem is this research is the lack of knowledge of theachers and students about how use the application Google Classroom (GC) in learning activities, but there are still students do not have google account to log in the application GC. This research is a descriptive qualiative research. This study aims to determine how the quality of mathematics learning in the use of the application GC of combinatorics material for class XII IPA students of SMA Negeri 1 Pasir Penyu. The subjects of this study were selected based on the student’s daily test scores on combinatoric material using the application GC, where the subjects of this study included six students of class XII IPA 3 consisting of two students who had high test scores, two students who had mean test scores and two students who had low test scores. Data collection techniques are interview guidelines and questinnaire sheets. Furthermore, the data obtained will be analyzed based on indicators of the quality of mathematics learning. Data analyzed techniques in this study were data reduction, data presentation, and data verification. Based on the final results of the questionnaire sheets scores and the average posttest so that the average of both is 71,5 whit good categories, it can be concluded that the quality of mathematics learning in the use of the application GC of combinatorics material for class XII IPA 3 students of SMA Negeri 1 Pasir Penyu is good.
本研究的使用背景问题是教师和学生对如何在学习活动中使用b谷歌应用程序课堂(GC)缺乏了解，但仍有学生没有谷歌账号登录应用程序GC。本研究为描述性定性研究。本研究旨在探讨SMA Negeri 1 Pasir Penyu 12班IPA学生在使用组合材料应用GC时，数学学习质量的影响。本研究的研究对象采用GC应用程序根据学生在组合材料上的日常测试成绩选择，本研究的研究对象包括6名十二年级ipa3班的学生，其中两名考试成绩高，两名考试成绩中，两名考试成绩低。数据收集技术是访谈指南和问卷调查表。此外，所获得的数据将根据数学学习质量的指标进行分析。本研究的数据分析技术为数据缩减、数据呈现和数据验证。根据问卷得分和后测平均值的最终结果，即两者的平均值为71.5，为良好类别，可以得出SMA Negeri 1 Pasir Penyu的XII IPA 3班学生使用组合材料应用GC的数学学习质量较好。
{"title":"Analisis kualitas pembelajaran matematika pada penggunaan platform google classroom materi kombinatorika","authors":"Helma Mustika, Junita Nadela","doi":"10.34007/JDM.V2I1.579","DOIUrl":"https://doi.org/10.34007/JDM.V2I1.579","url":null,"abstract":"Using the background of the problem is this research is the lack of knowledge of theachers and students about how use the application Google Classroom (GC) in learning activities, but there are still students do not have google account to log in the application GC. This research is a descriptive qualiative research. This study aims to determine how the quality of mathematics learning in the use of the application GC of combinatorics material for class XII IPA students of SMA Negeri 1 Pasir Penyu. The subjects of this study were selected based on the student’s daily test scores on combinatoric material using the application GC, where the subjects of this study included six students of class XII IPA 3 consisting of two students who had high test scores, two students who had mean test scores and two students who had low test scores. Data collection techniques are interview guidelines and questinnaire sheets. Furthermore, the data obtained will be analyzed based on indicators of the quality of mathematics learning. Data analyzed techniques in this study were data reduction, data presentation, and data verification. Based on the final results of the questionnaire sheets scores and the average posttest so that the average of both is 71,5 whit good categories, it can be concluded that the quality of mathematics learning in the use of the application GC of combinatorics material for class XII IPA 3 students of SMA Negeri 1 Pasir Penyu is good.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69695569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this study was to determine whether the mathematical communication skills and attitudes of students who were taught with the Think-Talk-Write (TTW) strategy were better than conventional learning. This research is a quasi-experimental research which compares two learning models, namely the TTW cooperative learning model and the conventional learning model. This research was conducted on students of class VII SMPS Mentari Bangsa Medan, which consisted of 2 classes. This study involved two variables, namely the independent variable and the dependent variable. The independent variable is the TTW and KAM learning strategy, while the dependent variable is the mathematical communication skills and attitudes of students towards learning. The sample consist of 42 students for TTW strategy and 37 students for conventional learning. The conclusion is that students who get learning with the TTW strategy have significantly better mathematical communication skills than students who get conventional learning (tcount = 4,93 more than ttable =1,66) and the attitudes of students who get learning with the TTW strategy are significantly better than students who get conventional learning (tcount = 3,14 more than ttable = 1,66).
本研究的目的是确定采用思考-谈话-写作（TTW）策略教学的学生的数学沟通技能和态度是否比传统学习更好。本研究是一项准实验研究，比较了两种学习模式，即TTW合作学习模式和传统学习模式。这项研究是对七班SMPS Mentari Bangsa Medan的学生进行的，该班由两个班组成。本研究涉及两个变量，即自变量和因变量。自变量是TTW和KAM学习策略，因变量是学生的数学沟通技能和学习态度。样本包括42名TTW策略学生和37名常规学习学生。结论是，采用TTW策略学习的学生比采用传统学习的学生具有显著更好的数学沟通技能（tcount=4.93，比ttable=1.66多），采用TTW策略学习的同学的态度显著好于采用传统学习（tcount=3.14，比ttaable=1，66多）。
{"title":"Pengaruh pembelajaran think-talk-write terhadap kemampuan komunikasi matematik dan sikap positif siswa terhadap matematika","authors":"W. Habeahan, Hetdy Sitio, Fitry Wahyuni","doi":"10.34007/JDM.V2I1.619","DOIUrl":"https://doi.org/10.34007/JDM.V2I1.619","url":null,"abstract":"The purpose of this study was to determine whether the mathematical communication skills and attitudes of students who were taught with the Think-Talk-Write (TTW) strategy were better than conventional learning. This research is a quasi-experimental research which compares two learning models, namely the TTW cooperative learning model and the conventional learning model. This research was conducted on students of class VII SMPS Mentari Bangsa Medan, which consisted of 2 classes. This study involved two variables, namely the independent variable and the dependent variable. The independent variable is the TTW and KAM learning strategy, while the dependent variable is the mathematical communication skills and attitudes of students towards learning. The sample consist of 42 students for TTW strategy and 37 students for conventional learning. The conclusion is that students who get learning with the TTW strategy have significantly better mathematical communication skills than students who get conventional learning (tcount = 4,93 more than ttable =1,66) and the attitudes of students who get learning with the TTW strategy are significantly better than students who get conventional learning (tcount = 3,14 more than ttable = 1,66).","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46378738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study is a Classroom Action Research with a qualitative descriptive method, which aims to increase students' mathematical resilience when using the Different Instruction approach. The subjects of this study were 40 first-semester students of class B of Informatics Engineering and Computer Education STKIP Al Maksum Langkat. The object of this research is the students' mathematical resilience ability through the Different Instruction approach in the basic mathematics subject matter of functions. This research procedure refers to four stages, namely planning, acting, observing, and reflecting. This research was conducted in two cycles, the research was based on the criteria that reached 85% for students who produced a minimum result of 65%. The instrument used in this study was a non-test question in the form of a mathematical resilience scale given at the beginning and end of the lesson. Based on the results of the study, it can be ignored that the Instruction Differentiation approach can improve the mathematical resilience of the first semester B grade students of the PTIK study program, by grouping students based on learning styles more effective in increasing students' mathematical resilience in applying the Instruction Differentiation approach.
本研究是一项课堂行动研究，采用定性描述的方法，旨在提高学生在使用不同教学方法时的数学弹性。本研究的对象是STKIP Al Maksum Langkat信息工程与计算机教育B班的40名第一学期学生。本研究的对象是在函数基础数学学科中，通过不同的教学方法，培养学生的数学应变能力。这个研究过程分为四个阶段，即计划、行动、观察和反思。这项研究分两个周期进行，研究的标准是达到85%，学生的最低成绩为65%。本研究中使用的工具是一个非测试题，采用数学弹性量表的形式，在课程开始和结束时给出。根据研究结果，可以忽略的是，教学差异化方法可以提高PTIK学习项目第一学期B年级学生的数学弹性，通过根据学习风格对学生进行分组，更有效地提高了学生应用教学差异化法的数学弹性。
{"title":"Meningkatkan resiliensi matematis mahasiswa pada mata kuliah matematika dasar melalui pendekatan differentiated instruction","authors":"A. Fatimah, Azrina Purba","doi":"10.34007/JDM.V2I1.617","DOIUrl":"https://doi.org/10.34007/JDM.V2I1.617","url":null,"abstract":"This study is a Classroom Action Research with a qualitative descriptive method, which aims to increase students' mathematical resilience when using the Different Instruction approach. The subjects of this study were 40 first-semester students of class B of Informatics Engineering and Computer Education STKIP Al Maksum Langkat. The object of this research is the students' mathematical resilience ability through the Different Instruction approach in the basic mathematics subject matter of functions. This research procedure refers to four stages, namely planning, acting, observing, and reflecting. This research was conducted in two cycles, the research was based on the criteria that reached 85% for students who produced a minimum result of 65%. The instrument used in this study was a non-test question in the form of a mathematical resilience scale given at the beginning and end of the lesson. Based on the results of the study, it can be ignored that the Instruction Differentiation approach can improve the mathematical resilience of the first semester B grade students of the PTIK study program, by grouping students based on learning styles more effective in increasing students' mathematical resilience in applying the Instruction Differentiation approach.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46889310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aims to determine the ability of reflective mathematical abstraction which consists of the ability to apply concepts, the ability to make relationships between concepts to form new meanings, and the ability to manipulate abstract mathematical objects. This research is a qualitative research with type of case study. The sample used in this study was one senior high school student of class X. The method of collecting data to find the results of the study was to use a test instrument for building questions and interviews. These instruments are validated first using Expert Judgment Validation. The results obtained by indicator one and indicator two, student still find it difficult to understand the concept and choose which other concept is suitable to obtain a solution. Meanwhile, on the third indicator student can manipulate abstract mathematical objects. So that the student' mathematical abstraction ability is still quite good.
{"title":"Kemampuan abstraksi reflektif matematis siswa pada materi bangun ruang","authors":"Nia Sutrisna, Surya Amami Pramuditya, Jajo Firman Raharjo, Setiyani Setiyani","doi":"10.34007/JDM.V2I1.598","DOIUrl":"https://doi.org/10.34007/JDM.V2I1.598","url":null,"abstract":"This study aims to determine the ability of reflective mathematical abstraction which consists of the ability to apply concepts, the ability to make relationships between concepts to form new meanings, and the ability to manipulate abstract mathematical objects. This research is a qualitative research with type of case study. The sample used in this study was one senior high school student of class X. The method of collecting data to find the results of the study was to use a test instrument for building questions and interviews. These instruments are validated first using Expert Judgment Validation. The results obtained by indicator one and indicator two, student still find it difficult to understand the concept and choose which other concept is suitable to obtain a solution. Meanwhile, on the third indicator student can manipulate abstract mathematical objects. So that the student' mathematical abstraction ability is still quite good.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44439731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Problem solving is a basic skill that should be possessed by students. Mathematical problem solving abilities play a role in solving every problem both other subjects and problems in everyday life. Through mathematical problem solving activities students are directed to build mathematical knowledge, think logically, systematically and measurably. The fact is that students' mathematical problem solving abilities are still low. The learning process that focuses on exercises that provide opportunities for students to develop mathematical problem solving skills to become a model for improvement in the learning process. The Missouri Mathematical Project learning model is an appropriate learning model to facilitate students in developing their thinking in solving mathematical problem solving problems. For this reason, this study aims to improve students' mathematical problem solving abilities through the application of the Missouri mathematical learning model. This type of research is a classroom action research (PTK). The research subjects were grade V students of MIS Al Firdausy Pematang Reba. The data collection technique used was a mathematical problem-solving ability test. The data analysis technique used is quantitative data analysis. Based on the results of the test of mathematical problem solving abilities, there was an increase in each cycle starting from the initial pre-action test, cycle I and cycle II. It can be concluded that there is an increase in students' mathematical problem solving abilities through the application of the Missouri mathematical learning model.
解决问题是学生应该具备的一项基本技能。数学问题解决能力在解决其他科目和日常生活中的每一个问题中都发挥着作用。通过数学问题解决活动，引导学生建立数学知识，进行逻辑、系统和可衡量的思考。事实上，学生的数学问题解决能力仍然很低。专注于练习的学习过程，为学生提供发展数学问题解决技能的机会，成为学习过程中改进的典范。密苏里州数学项目学习模式是一种适当的学习模式，有助于学生在解决数学问题和解决问题方面发展思维。因此，本研究旨在通过密苏里数学学习模型的应用来提高学生的数学问题解决能力。这种类型的研究是课堂行动研究（PTK）。研究对象是MIS Al Firdaussy Pematang Reba的五年级学生。所使用的数据收集技术是一种数学问题解决能力测试。所使用的数据分析技术是定量数据分析。根据数学问题解决能力测试的结果，从最初的行动前测试、第一周期和第二周期开始，每个周期都有增加。可以得出结论，通过密苏里数学学习模型的应用，学生的数学问题解决能力得到了提高。
{"title":"Peningkatan kemampuan pemecahan masalah matematis siswa melalui penerapan model pembelajaran missouri mathematic project","authors":"Boni Harianda, Beni Junedi","doi":"10.34007/JDM.V2I1.616","DOIUrl":"https://doi.org/10.34007/JDM.V2I1.616","url":null,"abstract":"Problem solving is a basic skill that should be possessed by students. Mathematical problem solving abilities play a role in solving every problem both other subjects and problems in everyday life. Through mathematical problem solving activities students are directed to build mathematical knowledge, think logically, systematically and measurably. The fact is that students' mathematical problem solving abilities are still low. The learning process that focuses on exercises that provide opportunities for students to develop mathematical problem solving skills to become a model for improvement in the learning process. The Missouri Mathematical Project learning model is an appropriate learning model to facilitate students in developing their thinking in solving mathematical problem solving problems. For this reason, this study aims to improve students' mathematical problem solving abilities through the application of the Missouri mathematical learning model. This type of research is a classroom action research (PTK). The research subjects were grade V students of MIS Al Firdausy Pematang Reba. The data collection technique used was a mathematical problem-solving ability test. The data analysis technique used is quantitative data analysis. Based on the results of the test of mathematical problem solving abilities, there was an increase in each cycle starting from the initial pre-action test, cycle I and cycle II. It can be concluded that there is an increase in students' mathematical problem solving abilities through the application of the Missouri mathematical learning model.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44658312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Fitriani, Yulia Anita Siregar, Wiwik Novitasari
Mathematical communication skills are one of the abilities that students must have to make it easier to solve problems contained in mathematics itself and in everyday life. Because if students have mastered mathematical communication skills, it will make it easier for students to take deeper learning. This study aims to analyze the difficulty of students' mathematical communication skills using the Google Classroom Application in the Algebra course. This type of research is descriptive qualitative. The subjects of this study were tree semester students who took Algebra courses in the Mathematics Education study program at Universitas Muhammadiyah Tapanuli Selatan, academic year 2020/2021 as many as 15 people. The instrument used in this study was Test and interview. The results showed that based on the test results obtained: difficulties in the ability to interpret mathematical ideas rationally in writing, difficulties in mathematical problems into mathematical models and difficulties in the ability to express mathematical ideas in the form of descriptions. Meanwhile, based on the results of the interview, namely: (1) technical difficulties, and (2) student adaptation difficulties. To overcome these difficulties, it is necessary which is a combination of Online and Offline learning or also called blended learning.
{"title":"Analisis kesulitan kemampuan komunikasi matematika mahasiswa menggunakan aplikasi google classroom pada matakuliah aljabar","authors":"F. Fitriani, Yulia Anita Siregar, Wiwik Novitasari","doi":"10.34007/JDM.V2I1.596","DOIUrl":"https://doi.org/10.34007/JDM.V2I1.596","url":null,"abstract":"Mathematical communication skills are one of the abilities that students must have to make it easier to solve problems contained in mathematics itself and in everyday life. Because if students have mastered mathematical communication skills, it will make it easier for students to take deeper learning. This study aims to analyze the difficulty of students' mathematical communication skills using the Google Classroom Application in the Algebra course. This type of research is descriptive qualitative. The subjects of this study were tree semester students who took Algebra courses in the Mathematics Education study program at Universitas Muhammadiyah Tapanuli Selatan, academic year 2020/2021 as many as 15 people. The instrument used in this study was Test and interview. The results showed that based on the test results obtained: difficulties in the ability to interpret mathematical ideas rationally in writing, difficulties in mathematical problems into mathematical models and difficulties in the ability to express mathematical ideas in the form of descriptions. Meanwhile, based on the results of the interview, namely: (1) technical difficulties, and (2) student adaptation difficulties. To overcome these difficulties, it is necessary which is a combination of Online and Offline learning or also called blended learning.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43523568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
SMK N 1 Batang Gansal’s students have difficulty learning the matrix material. This can be seen from the result of students who get test scores below score 60. Especially in class x agribusiness plantations 1 with the percentage of daily test scores below score 60, which is 82.6%. Therefore, an analysis is needed to determine the types of errors that students tend to make in solving matrix problems. In this study, data collection was carried out using test and questionnaire methods, with data analysis using descriptive statistics. Based on the data analysis, it was concluded that the mistakes made by students in solving matrix problems were concept errors, principal errors and operational errors, with a tendency for errors in conceptual errors. The causes of errors are not understanding the concepts of matrix material, not listening when the teacher explains the material, not having complete notes or a summary of the matrix material, and not studying the matrix material at home, and not practicing working on various matrix questions so that they are unable to use formulas. matrix well.
{"title":"Analisis kesalahan siswa kelas X agribisnis tanaman perkebunan SMK Negeri 1 Batang Gansal dalam menyelesaikan soal matriks","authors":"F. Ramadhani, Mellyani Saraswati","doi":"10.34007/JDM.V2I1.580","DOIUrl":"https://doi.org/10.34007/JDM.V2I1.580","url":null,"abstract":"SMK N 1 Batang Gansal’s students have difficulty learning the matrix material. This can be seen from the result of students who get test scores below score 60. Especially in class x agribusiness plantations 1 with the percentage of daily test scores below score 60, which is 82.6%. Therefore, an analysis is needed to determine the types of errors that students tend to make in solving matrix problems. In this study, data collection was carried out using test and questionnaire methods, with data analysis using descriptive statistics. Based on the data analysis, it was concluded that the mistakes made by students in solving matrix problems were concept errors, principal errors and operational errors, with a tendency for errors in conceptual errors. The causes of errors are not understanding the concepts of matrix material, not listening when the teacher explains the material, not having complete notes or a summary of the matrix material, and not studying the matrix material at home, and not practicing working on various matrix questions so that they are unable to use formulas. matrix well.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44830124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: To make outpatient visits for adolescents with diabetes successful, it is important for health care professionals to meet the adolescents’ needs and wishes. Aims: The aim is to investigate adolescents’ expectations of an outpatient diabetes clinic visit in comparison to what was deemed to be delivered and contrast this outcome in adolescents with self-reported high- and low-diabetes distress respectively. Methods: All adolescents in Sweden with type 1 diabetes, aged 15 to 18 years, were identified via The National Pediatric Diabetes Registry (SWEDIABKIDS) and asked to complete an online questionnaire regarding their expectations and the support received during the outpatient diabetes clinic visit. Results: 453 adolescents completed the survey. Boys’ expectations of discussion topics were mainly met while girls, especially those with diabetes distress, felt their discussion needs were not met regarding quality-of-life aspects. Conclusions: Although adolescents’ expectations are in general met during the diabetes outpatient clinic visit, aspects related to living with diabetes are not being met especially among female adolescents who reported diabetes distress. This study shows a gender difference both regarding expected discussion topics and what was deemed covered. Practice Implications: A multi-professional, individual person-centred care approach is needed at the diabetes outpatient clinic. This paper proposes that agenda setting performed by the adolescent, and agreed by the physician, prior to the outpatient clinic visit could facilitate individualized care and better meet the adolescents’ needs in a shared decision-making process.
{"title":"The Outpatient Clinic Visit: Expectations and Fulfilment of Perceived Needs in Adolescents with Type 1 Diabetes","authors":"D. Novák, J. Chaplin, G. Forsander","doi":"10.4236/JDM.2021.112005","DOIUrl":"https://doi.org/10.4236/JDM.2021.112005","url":null,"abstract":"Background: To make outpatient visits for adolescents with diabetes successful, it is important for health care professionals to meet the adolescents’ needs and wishes. Aims: The aim is to investigate adolescents’ expectations of an outpatient diabetes clinic visit in comparison to what was deemed to be delivered and contrast this outcome in adolescents with self-reported high- and low-diabetes distress respectively. Methods: All adolescents in Sweden with type 1 diabetes, aged 15 to 18 years, were identified via The National Pediatric Diabetes Registry (SWEDIABKIDS) and asked to complete an online questionnaire regarding their expectations and the support received during the outpatient diabetes clinic visit. Results: 453 adolescents completed the survey. Boys’ expectations of discussion topics were mainly met while girls, especially those with diabetes distress, felt their discussion needs were not met regarding quality-of-life aspects. Conclusions: Although adolescents’ expectations are in general met during the diabetes outpatient clinic visit, aspects related to living with diabetes are not being met especially among female adolescents who reported diabetes distress. This study shows a gender difference both regarding expected discussion topics and what was deemed covered. Practice Implications: A multi-professional, individual person-centred care approach is needed at the diabetes outpatient clinic. This paper proposes that agenda setting performed by the adolescent, and agreed by the physician, prior to the outpatient clinic visit could facilitate individualized care and better meet the adolescents’ needs in a shared decision-making process.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44387083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: Gestational diabetes mellitus (GDM) is a common pregnancy disorder screened for between the 24th and 28th weeks of gestation using oral glucose tolerance test. GDM has maternal and fetal health implications. Objective: To assess the relation between folic acid supplementation in pregnant women and the risk of developing GDM. Search Strategy: The search employed topic-based strategies designed for each database in June 2020. Databases searched were Pubmed, Cochrane Library, Embase and Lebanese American University online database. Selection Criteria: Studies eligible were those targeting the association of GDM development and folic acid supplementation, including pregnant women who have developed GDM and pregnant women who were on folic acid supplementation and developed GDM. Both interventional and observational studies were included. Data Collection and Analysis: Two reviewers extracted the data independently. A third reviewer checked the data for consistency and clarity. Data extracted included the sample characteristics, sample size and outcomes. Cohen’s κ was used to assess agreement between reviewers. All tools and processes were piloted prior to use. Risk of bias was assessed using the Newcastle-Ottawa Scale. Data was presented in a tabulated form. Main Results: Six studies showed a proportional relation between folic acid intake and GDM, two reported a protective effect, and one cohort found no association. Conclusion: The inconsistent results made the formulation of a definitive conclusion difficult. Hence, larger studies are needed.
{"title":"Gestational Diabetes Mellitus and Folic Acid Supplementation in Pregnant Women: A Systematic Review","authors":"Stephanie Farah, Obey Albaini, K. Jallad","doi":"10.4236/JDM.2021.111003","DOIUrl":"https://doi.org/10.4236/JDM.2021.111003","url":null,"abstract":"Background: Gestational diabetes mellitus (GDM) is a common pregnancy disorder \u0000screened for between the 24th and 28th weeks of gestation \u0000using oral glucose tolerance test. GDM \u0000has maternal and fetal health implications. Objective: To assess the \u0000relation between folic acid supplementation in pregnant women and the risk of \u0000developing GDM. Search Strategy: The search employed topic-based strategies designed for each database in \u0000June 2020. Databases searched were Pubmed, Cochrane Library, Embase and Lebanese American University online \u0000database. Selection Criteria: Studies eligible were those targeting the association of GDM development \u0000and folic acid supplementation, including pregnant women who have developed GDM \u0000and pregnant women who were on folic acid supplementation and developed GDM. Both interventional and \u0000observational studies were included. Data Collection and Analysis: Two \u0000reviewers extracted the data independently. A third reviewer checked the data \u0000for consistency and clarity. Data extracted included the sample characteristics, \u0000sample size and outcomes. Cohen’s κ was used to assess \u0000agreement between reviewers. All tools and processes were piloted prior to use. Risk of bias was assessed using the Newcastle-Ottawa Scale. Data was presented in a \u0000tabulated form. Main Results: Six studies showed a proportional relation \u0000between folic acid intake and GDM, two reported a protective effect, and one \u0000cohort found no association. Conclusion: The inconsistent results made \u0000the formulation of a definitive conclusion difficult. Hence, larger studies are \u0000needed.","PeriodicalId":51086,"journal":{"name":"Journal of Database Management","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2021-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43400362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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