cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota samarinda,
Kalimantan timur
INDONESIA
PROSIDING SEMINAR KIMIA
Published by Universitas Mulawarman
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Chemistry
Arjuna Subject : -
Articles 502 Documents
 10   11   12   13   14 
THE POTENCY OF PROTEIN EXTRACTS FROMCandida albicans AS BIORECEPTOR ON IMMUNOSENSOR FOR DIAGNOSIS OF CANDIDIASIS Masfufatun -; Noer Kumala; Afaf Baktir
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Currently diagnosis of candidiasis still usingthe traditional standard blood culture method. The traditional method were less sensitive andtime consuming. The purpose of this research were to develope the more sensitive immunosensor based method, and to examine the potency of C. albicans protein extract as bioreceptor to detect C. albicans and its biofilm in the blood of candidiasis patients.The research methods include: (1) preparation of digestive gland liquid of snail (Achatina fulica); (2) extraction of protein from C. albicans through enzimatis and mechanic methods and (3) analyzing the protein extract as bioreseptor through immunodot assay.The research results showed that the snail enzymes has protein content 1.35 mg/ml and specific activity 1.96 unit/mg. The snail enzyme hydrolyzed the cell wall of C. albicans with and without sonication, produced planktonic extracell protein extract (PEP) and biofilm extracell proteinextract (BEP), planktonic intracell protein extract (PIP), and biofilm intracell protein extract (BIP), with protein content 1.44; 1.29; 1.29 and 1.21 mg/ml respectively. The biofilm intracell protein (BIP) showed antigenic property toward antibody anti-Candida (positive control),giving red spot on imunodot assay. Immunodot assay can distinguish negative control serum (health man) and positive Candidiasis control by using antigen 1 g/l and 50 l serum.
Activity Test Of Ethanol and n-Hexane Fraction Of African Leaves (Vernonia amygdalina Delile) as Antihyperuricemia On Male Mice Induced by Potassium Oksonat Deni Karisnawati; Saibun Sitorus; Chairul Saleh
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Antihyperuricemia activity tests have conductedon aethanolandn-hexane fraction Africanleaves (Vernonia amygdalina Delile). Hyperuricemia is a condition in which uric acid levels in the blood increases due to the high consumption of purine converted to uric acid by xanthine oxidase. Antihyperuricemia activity test of ethanolic and n-hexane fraction of African leaves (Vernonia amygdalina Delile) conducted on male white mice with variation in doses of 6, 11 and 22 mg/kg BW and variation of measurement time of 1, 2, 3 and 4 hours after administration of the extract orally. Data were analyzed with ANOVA and continued with Duncan test. Ethanolic fraction 11 mg/kg is the most effective fraction lower uric acid levels by 54.62% compared to alupurinol 300 mg/kg BW which lower uric acid levels by 56.91%. Phytochemical screening showed that the ethanolic fraction of African leaves contains triterpenoids, steroids, phenolics, flavonoids and saponins whereas n-hexane fraction containing alkaloids, steroids and flavonoids. These results show the extracts of African leaves have antihiperurisemia activity.
RELATIONSHIP BETWEEN STUDENT’S IMAGINATION ABILITY AND CONCEPTION ON ATOMIC STRUCTURE CONCEPTS Helda -
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Atomic orbital concept is a difficult subject for many high school and beginning undergraduate students, as it includes mathematical concepts not yet covered in the school curriculum. It requires certain ability for abstraction and imagination.The ability of imagination is one of mental model attributes affecting on student’s conception. This study aimed to identify imagination ability of student who had misconception and examine relationship between student’s imagination ability and conception in atomic structure concepts. The object of this research was 130 students of eleventh grade of SMAN Sumber rejo and SMAN Model Terpadu, Bojonegoro. Student’s misconception was determined based on the results of conceptual understanding (atomic structure) test. The student’s imagination ability was determined through the imagination diagnostic test that has been qualified in terms of validity and reliability. It was categorized into three levels, namely, high as level 1, moderate as level 2, low as level 3. The burden of student’s misconception was categorized into three levels involving low, middle, and high. Determining of it used central tendency (mean) and dispersion (standard deviation). There were three main result of this research. First, students who had misconception have varying abilities to imaginating in all levels (level 1 to level 3). Second, the average percentage of students who had misconception with low, middle, and high level of imagination abilityare 81.3, 76.7, and 47.9 % respectively. Third, based on the results of X2 analysis, it was obtained p-value 0.019, less than α = 0.05. It means that there was relation significantly between the level of student’s imagine ability and burden misconception level. Students having low imagine ability had the high possibility for possessing misconception in atomic structure concepts.
KNOWLEDGE HISTORY MAPPING OF STUDENTS OF PROSPECTIVE CHEMISTRY TEACHERS TO MOVE TACIT KNOWLEDGE TO ACCOUNTABLE EXPLICIT KNOWLEDGE Kurroti A’yun
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Students of prospective chemistry teacher need to be freed from misconceptions hidden in their tacit knowledge by moving it into explicit knowledge. Overcoming misconceptions is conducted by mapping their tacit knowledge through misconceptions detection test supported by assessment of learning styles. The combined tests aim to adjust the program for each student. Once their level and type of misconceptions are detected, the students are given misconceptions therapy by utilizing peer cooperation to fill in explicit knowledgemapping table. The mapping table is in accordance with method and practice of teaching adult learners (andragogy). Andragogy is used as underlying theory of teamwork in completing explicit knowledge mapping table because university students’ learning motivation is different from that of school students’. University students are in transition to adult age who seeks knowledge not only for gaining knowledge but also for implementing it in life after college.
SYNTHESIS CHITOSAN-ETHYLENE DIAMINE TETRA CETATE CHELATING RESIN ISOLATED FROM WINDU SHRIMP’S (Penaeus monodon) SHELL WASTE Marvin Horale; Aman Sentosa Panggabean
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

A researchon the utilization of shrimp shell waste are abundan tin the province of East Kalimantan as the source of chitosan and synthesis of the derivative chelating chitosan-ethylene diamine tetra acetate (EDTA) resin and the retention of characterization for Cu(II) ions has been carried out. Chitin were obtained from Windu Shrimp’s (Penaeus monodon) shell through three ways, are deproteination, demineralitation and depigmentation. The obtained chitin were deacetylated with sodium hydroxide at temperature 150-160˚C during 1 hour to obtained chitosan, with contain was 64.4%. Synthesis chitosan-EDTA resin can be done by coupling reacts between diazonium ion from diazotation chitosan with EDTA at temperature 1-3˚C during 1 hour, the product of 70% yield was obtained. The Chitosan-EDTA resin was synthesized has characterization by using FT-IR spectroscopic and scanning electron microscope, shows the spesific functional groups of the resin.
THE EFFECT OF APPLICATION OF 5E LEARNING CYCLE MODEL COMBINED NUMBERED HEAD TOGETHER (NHT) TOWARD CHEMISTRY LEARNING OUTCOMES ON THE SUBJECT OF SALT HYDROLYSIS IN XI SCIENCE STUDENTS AT SENIOR HIGH SCHOOL 1 TANAH GROGOT ACADEMIC YEAR 2014/2015 Yuni Kurnia; Usman -; Ratna Kusumawardani
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the effect of application of 5E learning cycle modelcombined numbered head together (NHT) toward chemistry learning outcomes on the subject of salt hydrolysis in XI science students at Senior High School 1 Tanah Grogot academic year 2014/2015. The method is used in this study is experimental method. Samples were students of class XI Science 4 as an experimental class-treated with 5E learning cycle model combined numbered head together (NHT) and the students of class XI Science 3 as control class treated with direct instructional models. Obtaining the average value of 84,4 post-test experimental class and control class 73,8. Data analysis process two groups using t-test results obtained 3,24 ttest and ttable at 5% significance level of 1,67, then tcalculation> ttable. The results of this study indicate that there are. The effect of the 5E learning cycle modelcombined numbered head together (NHT) toward chemistry learning outcomes on the subject of salt hydrolysis in XI sains students at Senior High School 1 Tanah Grogot academic year 2014/2015.
Chemistry Education University of Mulawarman Muhammad Iksan
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Research has been done on the Virtual Labs as a limited means of chemical laboratories in schools, this study aims to determine how much student motivation in the material titration using a virtual lab. In the acid-base titration study using virtual labs can motivate students more enthusiastic in learning teaching activities. The result is obtained after a study conducted using virtual labs and data obtained from the questionnaire and interview. After doing learning with virtual labs can be concluded motivation of students categorized as very high.
MISCONCEPTION RESISTANT LOAD AND INPUT DIMENSION OF STUDENT’S LEARNING STYLES ON CHEMICAL EQUILIBRIUM CONTENT Septyadi David Eka Aryungga
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The purpose of this research was to determine the relationship of misconception resistant loadand input dimension of student’s learning styles on chemical equilibrium content. This research was a quantitative research using the ex post facto. The targets of this research is the students who have misconception resistant on chemical equilibrium content in SMAN 1 Kandangan, Kediri and SMAN 1 Sumenep identified conception by Certainty of Response Index (CRI) method. From 197 students, 97 students identified misconceptions resistant. Students who have misconceptions resistant administered tests of learning style on the dimension Input according to Felder and Silvermen. Misconception resistant load is categorized into three levels: low, medium, and high. The categorizing use central tendency (mean) of 6.80% and a standard deviation (standard deviation) of 4.44%. Identification ofthe student’s learning styles using instruments adopted from Felder and Silverman and analyzed with their scale. The conclusions that can be drawn from this research is on the chemical equilibrium content (1) the number of students who have misconception resistant are vary, (2) misconception resistant loadand learning styles on the input dimensionare vary, and (3) the student’s learning styles on the input dimension does not signifiacantlyaffect their misconception resistant load.
EFFECT OF COOPERATIVE LEARNING TYPE INVESTIGATION GROUP (GI) MODEL WITH EXPERIMENTAL OF COGNITIVE LEARNING OUTCOMES ENVIRONMENTAL SCIENCE EDUCATION STUDY PROGRAM BIOLOGY Sri Purwati
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the effect of learning model Group Investigation (GI) with the experimental method on cognitive learning outcomes of students. The study population was all students of biology education second semester, Academic Year 2014/2015. The sample in this study was determined by cluster random sampling technique consists of two classes namely class A (treatment) using Group Investigation learning model (GI) and class B (control). Data collection techniques using test techniques to get the data the cognitive learning. This type of research is a quasi experimental study. Design research in this study using a pretest-posttest design. Data analysis techniques in this study using statistical analysis techniques with separated variance t test. Cognitive learning outcomes the average value of class A (treatment) 78.09 70.95 while the control class. Results of t-test showed significant value 0:03 <0:05 so that we can conclude the learning model Group Investigation (GI) effect on the cognitive learning Environmental Science Biology Education Program.
Visible Learning For Teachers Walter Wagner
PROSIDING SEMINAR KIMIA PROCEEDING OF INTERNATIONAL CONFERENCE 2015
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Data Structur of visible Learning

Page 12 of 51 | Total Record : 502

 10   11   12   13   14 

Filter by Year

2013 2025


Reset
Filter By Issues
All Issue Vol 4 No 1 (2025): Prosiding SNK 2025 Vol 3 No 2 (2025): Prosiding SNKT 2024 Vol 3 No 1 (2024): Prosiding SNK 2024 Vol 2 No 2 (2024): Prosiding SNKT III 2023 Vol 2 No 1 (2023): Prosiding SNK 2023 Vol 1 No 2 (2023): Prosiding SNKT II 2022 Vol 1 No 1 (2022): Prosiding SNK 2022 2021: SEMINAR NASIONAL KIMIA 2021 Prosiding SNKT Himpunan Mahasiswa Kimia FMIPA UNMUL 2021 2020: Prosiding Seminar Nasional Kimia Berwawasan Lingkungan (SNK-BL) 2020 Seminar Nasional Himpunan Mahasiswa Kimia 2020 SEMINAR NASIONAL KIMIA 2019 SEMINAR NASIONAL KIMIA 2018 SEMINAR NASIONAL KIMIA 2017 PROCEEDING OF INTERNATIONAL CONFERENCE 2015 SEMINAR NASIONAL KIMIA 2014 SEMINAR NASIONAL KIMIA 2013 More Issue