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Identification and Analysis of Macrozoobenthos in The Reclamation Land Area of Lime Mining Supiana Dian Nurtjahyani; Dwi Oktafitria; . Sriwulan; Ahmad Zaenal Arifin; Ahmad Yogi Pambudi; Eko Purnomo
Advances in Tropical Biodiversity and Environmental Sciences Vol 6 No 2 (2022): ATBES
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2022.v06.i02.p03

Abstract

Mining activities that occur at PT Semen Indonesia (Persero) Tbk. caused the land to become critical land where the nutrients are low and the ecosystem is disturbed, therefore it is necessary to carry out restoration activities for ex-mining land as an effort to be made for the process of recovering ex-mining land as happened to PT Semen Indonesia Tbk, namely by carrying out reclamation activities. Reclamation is an activity that aims to improve or manage the use of disturbed land due to general mining business activities so that it can function and be efficient in accordance with its designation. This study aimed to analyze the structure of the macrozoobenthos community in the reclamation land ecosystem of PT Semen Indonesia limestone mining. This is expected to provide information on the structure of the ecosystem macrozoobenthos community on reclaimed land. A sampling of macrozoobenthos was carried out in the Sugihan village (SUG) and Mliwang village (MLI), Merakurak district, Tuban regency using the direct hand collecting method. The results of this study indicated that the macrozoobenthos species found on the reclamation land of PT. Semen Indonesia Tbk showed it was included in the medium category.
Identification and Analysis of Diversity of Soil Microorganism Colonies in Limestone Reclamation Land Supiana Dian Nurtjahyani; Dwi Oktafitria; Sriwulan .; Ahmad Zaenal Arifin; Eko Purnomo
Advances in Tropical Biodiversity and Environmental Sciences Vol 4 No 2 (2020): ATBES
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.661 KB) | DOI: 10.24843/ATBES.2020.v04.i02.p02

Abstract

Reclamation of land used for mining is very important because it is related to microbial activity in the soil which has an impact on soil fertility. The purpose of this study is to identify and analyze the diversity of bacterial colonies in the reclaimed land of the former Limestone Mining. The method used in this research was a laboratory experimental method. The results of the study showed that 6 bacterial isolates were found and the highest total plate count in GPS land (GPS system) is 1.97 X 106 cfu, the dominant colony characteristics were irregular shapes, flat edges and milky white color.
Ecology and Economic Study of Leaf Litter as Organic Fertilizer in Reclamation Land Used on Lime Supiana Dian Nurtjahyani; Dwi Oktavitria; Sri Wulan; Nova Maulidina; Imas Cintamulya; Eko Purnomo
Advances in Tropical Biodiversity and Environmental Sciences Vol 4 No 1 (2020): ATBES
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.887 KB) | DOI: 10.24843/ATBES.2020.v04.i01.p05

Abstract

The success of reclamation is largely determined by many things including the fertility of the planting media. The fertility of the planting media is related to fertilizer, from the litter found in post-mining land that can be utilized for making organic fertilizer. The purpose of this study is to examine the ecological and economic aspects of leaf litter as organic fertilizer in the reclaimed land of limestone mining. Method: Laboratory experimental research with method Bokhasi Results from this study proved that there are differences in the nutrient content of P, C and N in the reclamation land in 2010, 2014 and 2016. Processing leaf litter into organic fertilizer can provide ecological and economic benefits for the company and for the surrounding community.
The Implementation of TPACK Learning in Human Movement Systems Materials to Improve Students’ Critical Thinking Supiana Dian Nurtjahyani; Anik Winarni; Indra Sugiarsi; Restiani Agusvita; Ali Mustafa; Sukisno Sukisno
AL-ISHLAH: Jurnal Pendidikan Vol 14, No 4 (2022): AL-ISHLAH: Jurnal Pendidikan
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v14i4.2287

Abstract

Natural Sciences is the study of natural phenomena. In science learning, students are expected to have scientific knowledge, high-level thinking, critical and creative thinking, so that they become independent learners. The purpose of this study was to describe students' critical thinking skills through environmental-based TPACK learning on the human motion system material. This research method is done by lesson study with 3 learning cycles. The results showed that TPACK learning can improve students' critical thinking, especially in identifying, linking, analyzing and concluding in this study the application of TPACK learning to improve thinking skills in categories can be very good.
Groove Planting System (GPS) Analysis of The Growth of Teak (Tectona grandis) in Ex-Lime Stone mining land Supiana Dian Nurtjahyani; Dwi Oktafitria; Sri Wulan; Ahmad Zainal Arifin; Eko Purnomo
Advances in Tropical Biodiversity and Environmental Sciences Vol 6 No 3 (2022): ATBES
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/ATBES.2022.v06.i03.p05

Abstract

The groove planting system (GPS) is one of the modifications in the plant planting system on ex-limestone mining land. The method used in the implementation of the GPS is to create a basin in the form of an elongated groove on the ex-limestone mining land that has not been reclaimed. Tectona grandis can be grown on less fertile land. This is even recommended by the government, where forest areas were set for planting with teak limited to places that are less fertile and steep. The growth of a plant can be influenced by environmental factors and genetic factors. The interaction between these two factors will determine the growth of a plant. The purpose of this study was to analyze the effectiveness of the Groove planting system (GPS) on the growth of teak (Tectona grandis) in limestone ex-mining areas. The method in this research was an experimental method that was carried out in the former limestone quarry of PT Semen Indonesia in 2020. The results showed that the growth of teak seen from the parameters of plant height, bar chart, leaf number, and leaf color increased. For example, leaf color with a conventional system has a scale of 3 with a GPS scale of 5. Conclusion The GPS method is very effective for the growth of teak (Tectona grandis) because there is an increase in growth and color scale in terms of plant height, stem diameter, number of leaves, and leaf color parameters.
The Effect of Project Based Learning on Digital Literacy Skills and Conceptual Understanding in an Online-Based Flipped Classroom Environment Miftahus Surur; Supiana Dian Nurtjahyani; Agusti Agusti; Indah Yana
Edumaspul: Jurnal Pendidikan Vol 7 No 1 (2023): Edumaspul: Jurnal Pendidikan
Publisher : Universitas Muhammadiyah Enrekang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33487/edumaspul.v7i1.5681

Abstract

The purpose of this study was to determine the effect of project-based learning on digital literacy skills and concept understanding in an online-basedflipped classroom environment. Methods used by researchers quantitative research methods. The methodological steps used by researchers are. First, researchers designed a learning design that is in accordance with the concept of PBL and online-based flipped classrooms. The research location is at STKIP PGRI Situbondo. For the population and research sample, researchers used a saturated sample of 105 students. Next, the data will be collected using test instruments. Instrument trials include: validity, reliability, difficulty, and differentiating power and continue with hypothesis testing. The results of this study are based on the results of the analysis and discussion of Project-Based Learning (PBL) learning methods that affect digital literacy skills and concept understanding in an online-based flipped classroom environment with a score of 0. 02 and 0. 03 < 0.05 then it can be concluded that there is an influence of variable X on variables Y1 and Y2. These findings also prove temporarily that PBL is suitable for use in learning through the digital world, in accordance with the main purpose of PBL whichprioritizes constructivist learning which involves the use of classical and digital books and activities in the field.
Pelatihan Bertanam Sayuran dengan Teknik Vertikultur pada Paguyuban Wali Murid Raudhotul Athfal Thoriqul Falah Dede Nuraida; Tabitha Sri Hartati Wulandari; Supiana Dian Nurtjahyani; Sulistiono
Jurnal Pemberdayaan Masyarakat Vol 8 No 1 (2023): Mei
Publisher : Direktorat Penelitian dan Pengabdian kepada Masyarakat (DPPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/jpm.v8i1.7509

Abstract

Raudhotul Athfal (RA) Thoriqul Falah is located in Talang Kembar Village. Mothers in Talang Kembar Village are generally unproductive housewives, so there needs to be empowerment to be more productive. The purpose of this training is to provide skills for the parents of the RA Thoriqul Falah Student, in making gardening places using vertical culture, making media, as well as selecting and planting seeds. This training activity is carried out in 2 methods, namely socialization about verticulture, and practice. The socialization method was carried out in the RA meeting room, while the practice was carried out in the school yard. The vertical planting is made from used mineral water bottles and paralon. The vegetables used were lettuce, pokcoy, and celery grown in a mixture of soil, husk and manure in a ratio of 2:1:1. Questionnaire given to all participants to find out the participants' interest in applying this technique. The results of this training showed that all participants were able to make vertical planting. All participants were able to make a composition of planting media, and were able to select and plant seeds. The results of the questionnaire showed that 90% of the participants were interested in applying this technique.
Genotype of Hepatitis B Virus Coinfection in Typhoid Patients SUPIANA DIAN NURTJAHYANI; RETNO HANDAJANI
Microbiology Indonesia Vol. 9 No. 3 (2015): September 2015
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (79.254 KB) | DOI: 10.5454/mi.9.3.6

Abstract

Typhoid fever can cause liver disorder and may result in complication. Studies revealed hepatic involvement in thypoid known as typhoid hepatitis. Our previous paper reported the existance of hepatitis B virus (HBV) coinfection in the serum of patients with typhoid using nested-polymerase chain reaction (PCR). Based on sequence divergence, HBV has been classified into 10 genotypes (A-J), which in prediction response and correlates with clinical outcome of chronic HBV infection. This study was conducted to determine the genotypes of HBV in typhoid patients coinfected with HBV in Tuban. Sera obtained from 5 typhoid patients positive HBV by nested PCR). Study was performed by direct sequencing BigDye V1.1 Terminator Cycle Sequencing kit and ABI Prism 310 Genetic Analyzer. Analys had been using the Genetix version 10 software to create the phylogenetic tree. Phylogenetic analysis showed 3 samples as genotype B and 2 two samples as genotype C.
Prevalence of Hepatitis B Virus Infection in Blood Donors Based on Titer Hepatitis B Surface Antigen Examination (HBsAg) SUPIANA DIAN NURTJAHYANI; RETNO HANDAJANI
Microbiology Indonesia Vol. 13 No. 4 (2019): December 2019
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (449.189 KB) | DOI: 10.5454/mi.13.4.5

Abstract

Hepatitis B remains a global public health problem. Infection from hepatitis B virus (HBV) can be transmitted through a blood test or a blood transfusion. This study was conducted to identify the prevalence of HBV infection in blood donors based on examination of HBsAg titers . Blood donors from Tuban Red Cross used as sample. The method used in this research is HBsAg titers examination performed by ELISA according to the procedureoutlined in the Kit. HBsAg titers positive mostly found in men. In men from 13 samples (8.67%) are HBsAg titers positive of 150 samples while in woman all negative for HBsAg titers from 137 samples. The average titer positive was 3.095 with a standard deviation of 0.187. While HBsAg titers negative have average of 0.03 with a standard deviation of 0.14. This study showed that the prevalence of HBV infection in blood donors is most numerous in men with HBsAg titers positive number of 8.67%.
Utilization of Leaves in Mine Reclamation Land as Organic Fertilizer with Effective Bioactivatory of Microorganism 4 (em4) and Molasses Supiana Dian Nurtjahyani; Dwi Oktafitria; Sriwulan Sriwulan; Nova Maulidina; Imas Cintamulya; Eko Purnomo
Microbiology Indonesia Vol. 14 No. 2 (2020): June 2020
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (494.467 KB) | DOI: 10.5454/mi.14.2.5

Abstract

Organic fertilizer as an alternative to reduce the scarcity of chemical fertilizers, otherwise it can improve soil fertility. PT. Semen Gresik - Semen Indonesia Persero (Tbk.) Has a lot of plants in the treatment period in ex-mining land that needs fertilizer to help plant growth. In addition, in post-mining land, there is a lot of organic waste in the form of dry leaves under the stands of reclamation trees. The organic waste has the potential to be processed and used as organic fertilizer. This study aims to determine the utilize leaf litter in the reclaimed mine land as organic fertilizer with EM 4 and Molasses bioactivators. This study used is a laboratory experimental method. The results showed the composition of solid material in the form of leaf litter, bran, cow dung and husk charcoal in a ratio of 2: 1: 1: 1 as well as looking material in the form of molasses and EM4 with a dose of 100ml per 100kg of solid material dissolved in enough water (fertilizer can be clenched and expanded slowly and not broken). Conclusion leaf litter in the former reclaimed land can be processed and used as organic fertilizer.