scholarly journals CONSTRUCTION OF DIDACTIC MODEL OF MEMBRANE AND EXTRACELLULAR MATRIX TO FACILITATE THE TEACHING/LEARNING BY BIOLOGICAL SCIENCES STUDENTS AT UFRN

2015 ◽  
Vol 13 ◽  
pp. 17
Author(s):  
M. V.S. Medeiros et al
Keyword(s):  
Biological Sciences ◽  
Extracellular Matrix ◽  
Learning Process ◽  
Membrane Lipids ◽  
Structural Characteristics ◽  
The Matrix ◽  
The Subject ◽  
Set Up ◽  
Teaching Learning ◽  
And Function

This work was developed in the course of MOLECULAR DIVERSITY, required curricular component for the courses of Biological Sciences at UFRN. This course intends to encourage the study of the chemical structure and function of biomolecules using lectures and practical classes. Looking at the evaluations from previous semesters, it became evident that the subjects of the membrane and extracellular matrix were not being learned in a meaningful way. We also noticed lack of motivation from students due to difficulties in understanding molecules, weakening the teaching/learning process. Given this situation, our work aimed to encourage students to construct the constituent molecules of the membrane and extracellular matrix and assemble these structures, in order to understand molecular interactions, improve understanding of the subject and facilitate the learning process. This was accomplished through a monitoring project with the help of monitors. The proposed methodology consisted of separating the class into groups, where each would be responsible for making and exposing the other students to one of the molecules (Membrane Lipids, integrins, fibronectin, collagen, elastin, laminin, hyaluronic acid), and then discussing these molecules’ structural characteristics and interactions. The students could use various types of materials like cardboard, colored pens and polystyrene. The molecules were presented to the class, and the groups had set up the membrane and the matrix indicating the location of molecules and their possible interactions. All groups created their molecules according to given specifications. They created didactic and colorful molecules and positively interacted with all other groups during the assembly of the membrane and extracellular matrix; they also discussed molecules functions and interactions. We noticed during presentations and evaluation a strong performance in the subjects in question, as well as the construction of a didactic model easily used to understand these subjects; we therefore postulate that the activity achieved its objectives.

IMPROVING THE STUDENTS’ READING COMPREHENSION ACHIEVEMENT IN DESCRIPTIVE TEXT THROUGH TEAM GAMES TOURNAMENT

2014 ◽  
Vol 3 (3) ◽  
Author(s):  
DesiYusnanda Sari And Sri MindaMurni
Keyword(s):  
Reading Comprehension ◽  
Learning Process ◽  
Quantitative Data ◽  
Qualitative Data ◽  
Reading Scores ◽  
Team Games ◽  
The Subject ◽  
The Mean ◽  
Teaching Learning ◽  
Data Reading

This study attempted to improve the students’ reading comprehension achievement in descriptive text through Team Games Tournament (TGT) method. This study was conducted by using classroom action research. The subject of the research was class IX SMP PAB 10 Medan Estate which consisted of 25 students. The research was conducted in two cycles and the first cycle consisted of four meetings the second cycle consisted of two meetings. The instruments for collecting the data were quantitative data (reading evaluation) and qualitative data (diary note, observation sheet and interview sheet). Based on reading scores, students’ score kept improving in every evaluation. In the test I the mean was 65,33, in the test II the mean was 71,72 and the test III the mean was 84,54.Based on diary note, observation sheet and interview sheet, it was found that teaching-learning process ran well. Students were active, enthusiastic, and interested in reading. The result of the research showed that Team Games Tournament (TGT) method significantly improved students’ achievement in reading comprehension especially in reading descriptive text.

IMPROVING STUDENTS’ ACHIEVEMENT IN WRITING NARRATIVE TEXT BY WATCHING MOVIE

2013 ◽  
Vol 2 (2) ◽  
Author(s):  
Yohanna Situmeang And Busmin Gurning
Keyword(s):  
Learning Process ◽  
Quantitative Data ◽  
Qualitative Data ◽  
English Teachers ◽  
Narrative Text ◽  
Narrative Writing ◽  
Class Viii ◽  
The Subject ◽  
Teaching Learning ◽  
Orientation Test

This study was attempted to improve students’ achievement in writing narrativetext by watching movies. This study was conducted by using classroom action researchin two cycles. Cycle I consisted of four meetings while Cycle II consisted of twomeetings. The subject of the research was class VIII-A SMP SWASTA IMMANUELMEDAN. The number of the students was 34. To collect the data, the instruments werequantitative and qualitative data. The quantitative data was the scores of the studentsand the qualitative data was interview sheets, observation sheets, and diary notes. Basedon the writing score, students’ score were improving in every test. It can be seen inOrientation test, Test I in Cycle I, and Test II in Cycle II. In Orientation test, the meanscore was 37.94 then it was improved to 65.85 in Test I. In the end of cycle II, the meanscore for test II was again improved to 83.41. Based on interview sheets, observationsheets and diary notes, it was found that teaching-learning process ran well. In line withthe data, it showed that the application of watching movies significantly improvedstudent’s achievement in writing narrative text. English teachers were suggested to givemovies to be watched as guidance on students’ narrative writing in the class.

IMPROVING STUDENTS’ WRITING ACHIEVEMENT THROUGH THE PROCESS GENRE APPROACH

2013 ◽  
Vol 2 (2) ◽  
Author(s):  
Sri Wuri Handayani And Masitowarni Siregar
Keyword(s):  
Action Research ◽  
Learning Process ◽  
Qualitative Data ◽  
Score Test ◽  
Writing Achievement ◽  
The Subject ◽  
The Mean ◽  
Teaching Learning ◽  
Orientation Test ◽  
Interview Questionnaire

This study attempts to Improving Students’ Achievement Through the Process GenreApproach. The objective of the study is to discover whether the use of the ProcessGenre approach could significantly improve students’ writing achievement. This studyconduct by applying Classroom Action Research which was carried out in two cycles inten meetings. The subject of this study of SMA Panca Budi Medan which consisted of39 students of class X – 2 reguler.. Orientation test was done in the first meeting, test IIwas done in the fourth meeting, and test III was done in the last meeting. The mean ofstudents’ score test III (76,242) was higher than the test II (66,878) and test I (57,606).Besides, the qualitative data was taken from observation sheet, interview, questionnaire,and diary notes. It was found that teaching learning process ran well. By applying theProcess Genre Approach in the classroom, the students understood the content ofdescriptive text easily. They also were active and enthusiastic during the teachinglearning process. The result of the research showed that the application of the ProcessGenre approach significantly improved students’ achievement in writing descriptive text

IMPROVING STUDENTS’ ACHIEVEMENT IN SPEAKING THROUGH TWO STAY TWO STRAY STRATEGY

2013 ◽  
Vol 2 (2) ◽  
Author(s):  
Dita Masyitah Sianipar And Sumarsih
Keyword(s):  
Action Research ◽  
Learning Process ◽  
Quantitative Data ◽  
Test Score ◽  
Qualitative Data ◽  
Speaking Test ◽  
The Subject ◽  
The Mean ◽  
Teaching Learning ◽  
The Way

This study deals with the way to improve students’ achievement in speaking particularly through Two Stay Two Stray Strategy. This study was conducted by using classroom action research. The subject of of the research was class X-AP SMK Swasta Harapan Danau Sijabut in Asahan Regency that consisted of 34 students. The research was conducted in two cycles consisted of three meetings in each cycle. The instruments of collecting data for quantitative data used Speaking Test and instrument for analysis of qualitative data used observation, interview and questionnaire sheet. Based on the speaking test score, students’ score kept improving in every test. In the test I the mean was 61,47, in the test II the mean was 67,41 and the test III the mean was 78,52. Based on observation sheet and questionnaire sheet, it was found that teaching learning process run well and lively. Students were active and interest in speaking. The using of Two Stay Two Stray Strategy is significantly improved students’ achievement in speaking.

IMPROVING GRADE V STUDENTS’ VOCABULARY ACHIEVEMENT THROUGH FLASH CARDS

2014 ◽  
Vol 3 (1) ◽  
Author(s):  
Sabatini Sitorus And Masitowarni Siregar
Keyword(s):  
Action Research ◽  
Learning Process ◽  
Qualitative Data ◽  
Vocabulary Test ◽  
Flash Cards ◽  
The Subject ◽  
The Mean ◽  
Classroom Action Research ◽  
Teaching Learning ◽  
Vocabulary Achievement

This study attempts to increase students’ vocabulary achievement by using flash cards. The objective of the study is to investigate whether the using of flash card can improve students’ vocabulary achievement. This study conduct by applying Classroom Action Research which was carried out in two cycles in six meetings. The subject of this study of SD Negeri 174559 Siraituruk, Porsea which consisted of 34 students. For collecting data, the instruments used were quantitative (vocabulary test) and qualitative data (interview sheet, observation sheet, and diary notes. Based on the data, it was found that the mean of the second cycle (80, 44) is higher than the mean of first cycle (64, 85) and pre-test (44, 41).  Based on interview sheet, observation sheet and diary notes, it was found thee students were more active and more enthusiastic during the teaching learning process in the second cycle than the first one. It was concluded that teaching vocabulary by using  flash cards can improve the students’ vocabulary achievement.

IMPROVING STUDENT’S VOCABULARY ACHIEVEMENT IN WITING DESCRIPTIVE TEXT THROUGH MAKE A MATCH METHOD

2013 ◽  
Vol 2 (4) ◽  
Author(s):  
Irma Lely Lumban Gaol And Johan Sinulingga
Keyword(s):  
Data Analysis ◽  
Action Research ◽  
Learning Process ◽  
Match Method ◽  
Writing Test ◽  
The Subject ◽  
Classroom Action Research ◽  
Teaching Learning ◽  
Descriptive Writing ◽  
Vocabulary Achievement

This study is concerned with the improving student’s vocabulary achievement in writing descriptive text through Make a Match Method. The objective of this study was to discover whether the use of Make a Match Method could significantly improve students’ vocabulary achievement in writing descriptive text. This study was conducted by applying Classroom Action Research which was carried out in two cycles in six meetings. The subject of this study was students of SMA Negeri 1 Pollung which consisted of 34 students. The instruments for collecting data were descriptive writing test, observation sheet, questionnaire sheet, and diary notes. The techniques for data analysis were quantitative and qualitative. It was found that teaching-learning process ran well. Students were active, enthusiastic and interested on writing descriptive text. The result of this study showed that the use of Make a Match Method significantly improved student’s vocabulary achievement in writing descriptive text.

scholarly journals Proteolytic Events of Wound-Healing — Coordinated Interactions Among Matrix Metalloproteinases (MMPs), Integrins, and Extracellular Matrix Molecules

2001 ◽  
Vol 12 (5) ◽  
pp. 373-398 ◽  
Author(s):  
Bjorn Steffensen ◽  
Lari Häkkinen ◽  
Hannu Larjava
Keyword(s):  
Extracellular Matrix ◽  
Wound Healing ◽  
Matrix Metalloproteinases ◽  
Wound Repair ◽  
Enzyme Activation ◽  
Processing Enzymes ◽  
The Matrix ◽  
Signaling Receptors ◽  
State Of Rest ◽  
And Function

During wound-healing, cells are required to migrate rapidly into the wound site via a proteolytically generated pathway in the provisional matrix, to produce new extracellular matrix, and, subsequently, to remodel the newly formed tissue matrix during the maturation phase. Two classes of molecules cooperate closely to achieve this goal, namely, the matrix adhesion and signaling receptors, the integrins, and matrix-degrading and -processing enzymes, the matrix metalloproteinases (MMPs). There is now substantial experimental evidence that blocking key molecules of either group will prevent or seriously delay wound-healing. It has been known for some time now that cell adhesion by means of the integrins regulates the expression of MMPs. In addition, certain MMPs can bind to integrins or other receptors on the cell surface involved in enzyme activation, thereby providing a mechanism for localized matrix degradation. By proteolytically modifying the existing matrix molecules, the MMPs can then induce changes in cell behavior and function from a state of rest to migration. During wound repair, the expression of integrins and MMPs is simultaneously up-regulated. This review will focus on those aspects of the extensive knowledge of fibroblast and keratinocyte MMPs and integrins in biological processes that relate to wound-healing.

scholarly journals Using English Movie with Delay and Non Delay Subtitle to Improve Listening Skill

LETS ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 1-9
Author(s):  
Muh. Ikhlasul Amal ◽  
Syahdan ◽  
Risal Pandi ◽  
Halid M ◽  
Arialdi
Keyword(s):  
Learning Process ◽  
English Language ◽  
Native Speakers ◽  
English Teacher ◽  
Listening Skills ◽  
Listening Skill ◽  
Language Classroom ◽  
Post Test ◽  
The Subject ◽  
Teaching Learning

The aim of the study was  to  analyze  and  describe  the  process of  improving students’ listening skill for eleventh grade students of MAN 1 Majene, West Sulawesi Province through  watching English movies. The subject of this research is XI Agama 2 Class that consisted of 16 students. The method used in this study is Classroom Action Research (CAR) which the writer works  collaboratively with the English teacher. The results in this study indicate that there  was  improvement of the students’ skill listening. Most of the students gradually gained good scores at the end of the cycle. The data were collected from a questionnaire, observation note of performance, pre-test and post-test. The study was conducted with cycle model through the steps of planning, conducting, observation, and reflection. The results of this study show a significant relationship between students' learning by English movie with delay subtitle related to their listening skills as shown in their improvement of post- test and positive responses of students than  E nglish movie  with not delay. The questionnaire shows that more than 75% students felt easy to understand listening materials from native speakers. Consequently, it was suggested that teaching learning process using English movie with English subtitle is recommended  into  learning  process  to  improve students' listening skills in English language classroom. In conclusion, watching English movie can improve students listening skill.

scholarly journals Semiotic Representations of the Linear Function by Students Studying Administration

2019 ◽  
Vol 12 (9) ◽  
pp. 97
Author(s):  
Julio C. Ansaldo-Leyva ◽  
Julia X. Peralta-García ◽  
Francisco J. Encinas-Pablos ◽  
Omar Cuevas-Salazar ◽  
Laura Rangel-Lucas ◽  
...  
Keyword(s):  
Linear Function ◽  
Learning Process ◽  
Cognitive Activity ◽  
Mathematical Concept ◽  
Graduate Level ◽  
Sample Group ◽  
Semiotic Representations ◽  
The Subject ◽  
Teaching Learning ◽  
Administrative Science

Mathematical tools allow us to clearly explain the phenomenon studied in administrative science. Various studies have shown that linear function is a concept, widely used in administration, as well as in other kinds of science, but difficult for students to grasp and assimilate as a tool in their studies. That is the reason that the objective of the present project was to determine the difficulties faced by students of administration in learning the concept of the linear function, based on the theoretical elements of Raymond Duval’s registers of semiotic representation, to identify areas of opportunity in the teaching/learning process of this mathematical concept. Therefore, we designed an instrument made up of eight situations, which altogether consist of 24 problems. This instrument was validated by three experts in the area. Later, in keeping with the nature of the data to be collected, the instrument was given to a small randomly chosen sample group of six students studying under-graduate level administration and who were taking the subject of Mathematics for Business I. Students had the most difficulty in dealing with the registry of graphic representation and the cognitive activity of conversion between graphic and algebraic registers. It was also discovered that apparently context problems favored the latter conversion activity. We recommend these findings be further studied in a didactic approach to the issue, as well as carrying out studies of this nature on other mathematical objects in the course.

scholarly journals COVID-19: Threat or ally in the teaching-learning process in phytopathology?

2021 ◽  
Vol 39 (4) ◽  
Author(s):  
María Del Milagro Granados-Montero
Keyword(s):  
Learning Process ◽  
Culture Media ◽  
Teaching Experience ◽  
Information And Communications Technologies ◽  
Educational Project ◽  
Years Of Teaching Experience ◽  
Communications Technologies ◽  
The Family ◽  
Set Up ◽  
Teaching Learning

<p>Preventive confinement against COVID-19 changed the teaching-learning process of the Phytopathology course at the Faculty of Agronomy of the UCR. Information and Communications Technologies (ICT) were integrated into a program called ‘Phytopathology 2020, at the distance but together’. Each student received at her home a box of materials, including culture media and a paper microscope, that allowed her to set up and carry out different phytopathological techniques. The result obtained exceeded expectations and previous results in 16 years of teaching experience. The integration of the family into the educational project was surprising, fostering values of mutual commitment in education and prevention of COVID-19.</p>

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