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PENGARUH PERLAKUAN HCl PADA KRISTALINITAS DAN KEMAMPUAN ADSORPSI ZEOLIT ALAM TERHADAP ION Ca2+ Pardoyo, Pardoyo; Listiana, Listiana; Darmawan, Adi
JURNAL SAINS DAN MATEMATIKA Volume 17 Issue 2 Year 2009
Publisher : JURNAL SAINS DAN MATEMATIKA

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ABSTRACT--It has been done a research to determine  the  influence of hydrochloric acid treatnent to the crystalinity and adsorption capability of natural zeolite to Ca2+ ion.  Activation  process was conducted by refluxing  of  zeolite  with  KMnOa  0.5 M  and HCI  (1:1)  for  4  hours with  temperature of  80"C.  The  various concentration  of HCI  soltrtions  used were 4 M  (AZl),  6 M  (AZZ),8  M  (AZ3)  and l0  M  (AZA). Crstalinity of zeolite  was  identified  by  X-Ray  Diftaction  CXRD) while  the amount of  adsorbed Ca2*  ion was measured  by Atomic  Absorption  Spectroscopy  (AAS).  The activated zeolite was applied  to  adsorb calcium metal  ion  using shaker for  5, 15, 60, 90 dan 120 minutes. The results showed  that the increasing of HCI  concentration for  zeoliteactivation  caused  the  decreasing of  crystallinity  of  NZ,  AZl,  AZ2,  AZ3  wrd AZ1  nunely  100%;  101.10%; 9l.9lo/o;  84.93o/o  and 77  .45o/o  respectively. The adsorption percentage.  of Ca2*  ion  from  conc,entration  originally698 ppm (within  60 minutes)  for NZ,  AZl,  AZ2,  AZ3  and AZ,4 was successively  10.75 Vo;  20.91o/o;  l:4.610/o;19.63% and 24.07o/o.  The results indicated that the decreasing  of  crystallinity  of  zeolite caused  the  increasing of zeolite adsorption ability  to Ca2*  ion.Keywords : zeolite, crystallinity,  adsorption,  ,  Ca2*  ion
PENGARUH PENGGUNAAN KAPUR PADAM SEBAGAI BAHAN PENGISI (FILLER) PADA KETAHANAN PENGELUPASAN BETON ASPAL LAPIS AUS (AC-WC) Mashuri, Mashuri; Batti, Joy Fredi; Listiana, Listiana
MEKTEK Vol 15, No 2 (2013)
Publisher : MEKTEK

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Asphalt Concrete Wearing Course (AC-WC) Pavement is located at the upper layer indirect contact with the vehicle wheel, rain and sunshine. This condition causes the pavement layer AC-WC susceptible to damagecaused by traffic loads, the influence of water and the hot sun as stripping. Currently, much effort has beendone such as the use of hydrates lime as an additive to improve the durability of the AC-WC pavement from damage. However, this study tries to use hydrates lime as a filler material in view of its influence onstripping resistance of AC-WC pavement. The purpose of this study was to determine the effect of the use of hydrates lime as a filler material to stripping resistance of AC-WC pavement. The test have been done on each percentage of hydrat lime: 0%, 25%, and 50%. Testing of AC-WC pavementto stripping  resistance using Immersion Compression Test to obtain the Index of Residual Strength (IRS)AC-WC pavement. Value of the residual strength index is an indicator of stripping resistanceof asphalt pavement. Testing of Immersion Compression Test using a Universal Testing Machine (UTM) atthe test temperature is 250C. Testing of Immersion Compression Test conducted for each percentage ofhydrate lime on the condition of Optimum Asphalt Content. The results of the study found that the use ofhydrat lime as a filler material can affect the stripping resistance of AC-WC pavement. This is indicated bythe increased value of the IRS pavement using hydrates lime as a filler material than without the use ofhydrate lime. The study also found that the IRS maximum value is 96.03% in the hydrat lime content of 25% and aminimum value of 94.48% IRS on the hydrate lime content of 50%.Keywords: Stripping resistance, hydrate lime, IRS
KEHIDUPAN SOSIAL DAN INTERAKSI ORANG DENGAN HIV-AIDS DI YOGYAKARTA Listiana, Listiana
Jurnal Sosiologi Reflektif Vol 8, No 1 (2013)
Publisher : Universitas Islam Negeri Sunan Kalijaga Yogyakarta

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Stigma about HIV-AIDS disease that leads to PLWHA (PeopleLiving with HIV/AIDS), made its own challenges in conductingsocial processes include interaction. Interaction in society not onlyas in interactions with others, but with family and community is alsobecoming a force on for PLWHA (People Living with HIV/AIDS) tocontinue his social life can make. PLWHA (People Living with HIV/AIDS) shows open attitude in conducting community interaction,though their hearts are always overshadowed by the negative stigmathat will lead to them if the community knows it. Concealment ofidentity and the intermingling of words disguises them in communitygroups is their interaction strategies in strengthening of the existencein the society. The use of symbols in the form of words disguises isvalid only for the person who already knows the circumstances ofPLWHA (People Living with HIV/AIDS). The disguise of words willnot apply when PLWHA (People Living with HIV/AIDS) are dealingdirectly with the public. Common symbols in society will apply togroups of PLWHA (People Living with HIV/AIDS) as well as wheninteracting with the community, but the meaning of these symbols willbe different when they interact with other PLWHA (People Livingwith HIV/AIDS) and people who already know it.
Pola Distribusi Dan Kerapatan Racemobambos celebica S. Dransf. (Poaceae),Tumbuhan Endemik Sulawesi Di Kawasan Hutan Pegunungan SekitarDanau Kalimpa’a Taman Nasional Lore Lindu Listiana, Listiana; Suleman, Samsurizal M.; Pitopang, Ramadhanil
Natural Science: Journal of Science and Technology Vol 7, No 1 (2018): Volume 7 Number 1 (March 2018)
Publisher : UNIVERSITAS TADULAKO

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Penelitian tentang ”Pola Distribusi dan Kerapatan Racemobambos celebica S.Dransf (Poaceae) Tumbuhan Endemik Sulawesi di Kawasan Hutan Pegunungan Sekitar Danau  Kalimpa’a Taman Nasional Lore Lindu” telah dilaksanakan pada bulan Januari sampai Maret 2017. Penelitian  menggunakan metode survey eksploratif di kawasan yang dipelajari. Metoda sampling  menggunakan metode petak ganda, dimana sebanyak 25  plot yang masing-masingnya berukuran 10 m x 10 m diletakan secara sengaja (purposive sampling). Hasil pengamatan menunjukan bahwa pola distribusi R.celebica adalah mengelompok dan acak, dengan nilai indeks morisita tertinggi yaitu 0,13 terdapat pada plot 2 dan nilai indeks Morisita terendah yaitu 0 terdapat pada plot 12, 14, 15, 23 dan 24. Kerapatan populasi tertinggi yaitu terdapat pada plot 2 dengan nilai kerapatan 0,12 dan kerapatan relatif 7,59% sedangkan kerapatan populasi terendah terdapat pada plot 23 dengan nilai kerapatan 0,012 dan kerapatan relatif 0,75%.
The Effect of Newtonian Dynamics STEM-Integrated Learning Strategy to Increase Scientific Literacy of Senior High School Students Listiana, Listiana; Abdurrahman, Abdurrahman; Suyatna, Agus; Nuangchalerm, Prasart
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 8, No 1 (2019): Jurnal Ilmiah pendidikan Fisika Al-Biruni
Publisher : UIN Raden Intan Lampung, Indonesia

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This research aimed to examine STEM learning approach effectivity in increasing scientific literacy of senior high school students. The research involved 67Senior High School 5 students Bandar Lampung in Lampung Province, Indonesia. The research design used wasThe Non-Equivalent Control Group Pretest and Posttest Design. The experimental class used STEM Learning Approach and the control class used a scientific approach. The data was collected using pretest and posttest score of scientific literacy inventory. The Effectiveness analysis was done using the Normalized Gain (N–Gain) and Effect Size. Based on the research, the average score of the scientific literacy skill with N-gain of experimental classes was 0.55 and control class was 0.49, both classes were in medium category achievement. The result of effect size test showed that STEM learning approach has an effect size in the medium category of 0.24. Furthermore, based on an analysis of T-test results, there was a difference between the N-gain average score of the students' scientific literacy skill between experimental class and control class. The students who learned with STEM learning approach has a significantly higher degree of scientific literacy skill than those who learned with the scientific approach. So the conclusion in this research is that the students taught using the STEM approach are in the "conceptual" category which is better in explaining the concept, able to describe the relationship between these concepts, and able to analyze alternative solutions and procedural skills and understanding of the process of discovering science and technology
HUBUNGAN POLA KONSUMSI ZAT GIZI MAKRO DAN MIKRO DENGAN TEKANAN DARAH PADA PENDERITA HIPERTENSI Listiana, Listiana
JURNAL MEDIA KESEHATAN Vol 10 No 2 (2017): Jurnal Media Kesehatan Poltekkes Kemenkes Bengkulu Volume 10 Nomor 2 Oktober Ta
Publisher : Politeknik Kesehatan Kemenkes Bengkulu

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Hypertension is a condition that shows a person's blood pressure ≥140 mmHg for systolic and / or ≥90 mmHg pressure for diastolic pressure. The purpose of this research is to know the correlation between consumption pattern of macro and micro nutrients to blood pressure of hypertension patient in RSUD dr.M.Yunus Bengkulu Year 2017. Method: This research is an analytic survey, with cross sectional design. The location of this research is in poly disease in RSUD dr.M.Yunus. Samples were hypertension patients who treated in poly disease in RSUD Dr.M.Yunus Bengkulu as many as 50 samples, taken with chi square technique. Data of macro and micro nutrient intake was obtained through form food frequency questioner (FFQ). The data obtained were analyzed using chi square test. There is no association of protein with hypertension, no association of fat with hypertension, no carbohydrate relationship with hypertension, no sodium relationship with hypertension, no calcium relationship with hypertension, no potassium relationship with hypertension, no magnesium relationship with hypertension, no there is correlation of fiber with hypertension, there is no correlation of vitamin D with hypertension in RSUD dr.M.Yunus Kota Bengkulu year 2017. There is no correlation of consumption pattern of macro and micro nutrients with blood pressure in hypertension patient in poly disease in RSUD Dr.M. Yunus bengkulu in 2017. The need for an active family role related to the motivation and diet of hypertensive patients