scholarly journals Identification of the Catalytic Residues in the Cyclase Domain of the Class IV Lanthipeptide Synthetase SgbL

ChemBioChem ◽  
2021 ◽  
Author(s):  
Julian D. Hegemann ◽  
Roderich D. Süssmuth
2003 ◽  
Vol 2 (1) ◽  
pp. 161
Author(s):  
E RYAN ◽  
C OLOUGHLIN ◽  
M LEDWIDGE ◽  
B TRAVERS ◽  
M RYDER ◽  
...  
Keyword(s):  

2017 ◽  
Vol 6 (2) ◽  
pp. 472
Author(s):  
Aslinda Aslinda

This study aims to describe learning outcomes through the application of PAKEM learning model. The subjects of the study were the students of grade IVb SD Negeri 013 Mekarsari. Improvement of learning outcomes in terms of four categories, namely the ability to absorb, the effectiveness of learning, mastery of student learning both mastery of individual and classical completeness and mastery of learning outcomes. Instruments used for data collection are oral tests and written tests in the form of LKS conducted after the learning process. The results showed that the percentage of student completeness increased from 19.40% to 55.40% categorized well, the effectiveness of learning is categorized very effective with an average of 88.46%. While the completeness of student learning outcomes expressed. Based on the results of the study, it can be concluded that the application of PAKEM learning model can improve learning outcomes on the material of the students of class IV B grade SD Negeri 013 Mekarsari.


2016 ◽  
Vol 5 (1) ◽  
pp. 14
Author(s):  
Garnawati Siregar

Problems in the Classroom Action Research (PTK) is the low learning outcomes IPA A fourth grade students of SDN 015 Sungai Salak Kecamatan Tempuling. This study addressed the problem by applying direct instrucsion models. The problem of this research is "Is the direct application of the model intruction IPA can improve learning outcomes in grade IV A SDN 015 Sungai Salak Kecamatan Tempuling ?. The purpose of this study is to improve science learning outcomes in class IV A SDN 015 Sungai Salak Kecamatan Tempuling by way of direct intruction models. Direct intruction A model of fourth grade students of SDN 015 Sungai Salak, Kecamatan Tempuling can improve learning outcomes significantly. At first the student learning outcomes pre-cyclye is 36.00 categorized as very unfavorable; in the first cycle was 61.00 with category; and the results of the second cycle is 81.50 with very good category. Mastery learning individually and classical increases; pre-cyclye 4 students and 20.00 (not finished); in the first cycle is 12 students and 60.00% (not finished) and the second cycle is 19 students or 95% (complete). Based on observations of fourth grade students of SDN 015 A Sungai Salak Kecamatan Tempuling, activity in the first cycle an average of 72% or better and the second cycle of activity is 82% or better at all. Students seem to understand the direct intruction models and they can understand the subject matter properly and appropriately. Based on the research results with direct instructional improvement intruction models managed to fix the problem of low student learning outcomes SDN 015 class IV A Sungai Salak Kecamatan of Tempuling. 


2017 ◽  
Vol 5 (3) ◽  
pp. 307
Author(s):  
Deden Kusdinar

Based on the author's experience teaching for this in SD Negeri 010 Banjar PanjangKerumutan, and based on observation and early reflections by the author seen low creativityof students in learning that ultimately ends up in the low student learning outcomesthemselves, especially on the subjects of Natural Sciences. After many tests on the midtermturns lower student learning outcomes. Completeness class only reach 50% or 10 out of 20students, KKM for subjects of Natural Sciences which has been set in the class IV SD Negeri010 Banjar Panjang Kerumutan is the number 70. As Judge things that cause children lowvalue, from the aspect of teachers are: teacher always using methods lectures, learningachievement of children have been considered equally by teachers, and the learning processis dominated by the teacher. This research is a classroom action research (PTK). Class actionresearch through the stages of planning, implementation, observation and reflection. Fromthe research data is a result of learning of natural science at the top can be seen learningoutcome science students from the action on the preliminary data for the first cycle to thesecond cycle by improving student learning outcomes that menigkat are significant, the initialdata of students who achieve mastery only 50 % and cycle to the first increase has reached70% and the thoroughness of the class in the second cycle reaches 85%.


2017 ◽  
Vol 5 (3) ◽  
pp. 72
Author(s):  
Mariyana '

This research is motivated by the idea of the low ability determining principal grade IV SDN015 Pagaran Tapah Darussalam. Goals to be achieved in this research is to determine ideagrade IV principal of SDN 015 Pagaran Tapah Darussalam through the application of thetechniques implemented for 1 month. This research was conducted in SDN 015 PagaranTapah Darussalam. Classes are meticulous researchers are class IV by the number ofstudents as many as 24 people. This classroom action research was started in early August2016. This form of research is classroom action research. The research instrument consists ofinstruments teacher and student activity sheets and achievement test. Based on the research,the conclusion to this research the skills of students in the ability to determine the main ideahas increased. On preliminary data low category with a percentage of 54.2% while in sikus Ifirst encounter increased to 65.1% low category, at a second meeting to 68.8% and thesecond cycle increased to 81.3% categorized as moderate and kemablai increased in thesecond meeting be 85.7% higher category


2017 ◽  
Vol 5 (3) ◽  
pp. 42
Author(s):  
Marnius '

This research is motivated by the low ability students in finding ideas principal authorshipnarration in class IV SDN 003 Pagaran Tapah Darussalam. Goals to be achieved in thisresearch is to improve the ability of students in the basic idea for narrative writing in class IVSDN 003 Pagaran Tapah Darussalam through DRTA Strategy (directed reading thinkingactivity) carried out for 1 month. This research was conducted in SDN 003 Pagaran TapahDarussalam. Classes are meticulous researchers are class IV by the number of students asmany as 20 people. The study of this class action commenced in early September 2014. Thisform of research is classroom action research. The research instrument consists ofinstruments teacher and student activity sheets and achievement test. Based on the results ofthe study, the research concluded that the ability to search for the key idea fourth gradestudents of SDN 003 Pagaran Tapah Darussalam can be enhanced through DRTA strategy.This is evident from the increase in the student's ability in finding the key idea of the strategyDRTA before being applied to the second cycle of the second meeting. Known frompreliminary data the average value of students is 63. If the views of classical completeness,there are 30% of students (6) who finished obtaining a minimum value of 65 (according to thestandard KKM), the first cycle the first meeting denganrata average increased to 65, 3%circuitry completeness reach 10 or 50%, while in the second meeting mkembali increased to69.5 by the thoroughness of 12 people or 60% and sikluy II first meeting back in an averageincrease of 75% with the thoroughness of 16 or 80% and increased again in meetings second,reaching 80.5% with 100% completeness. The overall ability of students increased from theinitial tests until the fourth meeting of (20%). Thus, this study was successful


2017 ◽  
Vol 6 (2) ◽  
pp. 555
Author(s):  
Arlinda Arlinda

The background of this study is the low learning outcomes of students' IPS, from 22 students only 10 (45.45%) reaching the determined KKM, in addition the average student learning outcome is 62.50. The study aims to improve the learning outcomes of IPS Through the application of TSTS learning model. This research is a classroom action research, this research is conducted in SDN 21 Sitorajo Kecamatan Kuantan Tengah. Subjects in this study were students of class IV B with a total of 22 students. This research is conducted two cycles with four stages, namely: planning, implementation, observation and reflection. The result of research stated that after applied cooperative learning model type TSTS can improve learning result of IPS. This is evidenced by: (a) teacher activity in cycle I is 62,50, in cycle II equal to 82,81. Student activity in cycle I earn 65,62, in cycle II equal to 85,93; (b) result of student learning on prasiklus equal to 62,50, at cycle I equal to 72,50 and at second cycle equal to 82,18.


2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Kasmarni Kasmarni

This research is motivated by the results of learning science in fourth grade elementary school students who are still low. The purpose of this study was to improve the learning outcomes of science by applying the Cooperative Think Pair Share (TPS) type learning model. The results showed, seen from the basic score, students who completed as many as 11 people with a percentage of 47.82% while students who did not complete amounted to 12 people with a percentage of 52.17%. cycle I, students who completed at 17 people with a percentage of 73.91% while students who did not complete as many as 6 people with a percentage of 26.08%. cycle II, students who completed as many as 20 people with a percentage of 86.95% while the incomplete amounted to 3 people with a percentage of 13.04%. from the results of this study it can be concluded that by applying the cooperative learning model the Think Pair Share (TPS) type can improve the science learning outcomes of class IV elementary school 004 Seberang Teluk Hilir Kuantan Tengah District Kuantan Singingi Regency.


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