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Contact Name
Rahadian Zainul
Contact Email
rahadianzmsiphd@fmipa.unp.ac.id
Phone
+6281261385385
Journal Mail Official
eksakta@ppj.unp.ac.id
Editorial Address
Jl Prof Dr Hamka Air Tawar Barat
Location
Kota padang,
Sumatera barat
INDONESIA
Eksakta : Berkala Ilmiah Bidang MIPA
ISSN : -     EISSN : 25497464     DOI : https://doi.org/10.24036/eksakta/
Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464) is an open access journal and peer-reviewed that publishes either original article or reviews. The journal is dedicated towards dissemination of knowledge related to the advancement in scientific research. The prestigious interdisciplinary editorial board reflects the diversity of subjects covered in this journal. Under the realm of science and technology, the coverage includes environmental science, pure and applied mathematics, agricultural research and engineering, biology, biotechnology, bioinformatics, Healthcare sciences (including clinical medicine, preventive medicine & public health), physics, biophysics, computer science, chemistry and bioengineering, to name a few. This Journal Is Published at 3 Month intervals on January-Marc, April-June, July-September and October-December
Arjuna Subject : Umum - Umum
Articles 314 Documents
Aquifer Identification Using the Schlumberger Vertical Electrical Sounding (VES) Method in Mulyojati Village, Metro Barat Subdistrict, Metro City Mutafawwiqoh, Difa; Anggara Putra Prasetyo; Acep Ruchimat; Budy Santoso
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 27 No. 01 (2026): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol27-iss01/650

Abstract

Groundwater is ideally expected to be available in a sustainable manner and managed based on adequate subsurface hydrogeological information. However, conditions in Mulyojati Village, Metro Barat Subdistrict, Metro City indicate a lack of site-specific data on aquifer characteristics, despite increasing groundwater demand driven by population growth and socio-economic activities. This limitation may lead to uncertainty in well drilling planning and groundwater utilization. Therefore, an effective preliminary exploration method is required to identify groundwater-bearing layers. This study applies the Vertical Electrical Sounding (VES) method using the Schlumberger configuration to investigate subsurface resistivity variations related to lithology and groundwater saturation. The urgency of this research arises from the absence of previous geophysical investigations in the area, particularly within the heterogeneous Qpt Formation, which is considered a potentially productive aquifer. The objective of this study is to characterize subsurface resistivity and delineate potential aquifer zones in Mulyojati Village. The results are expected to provide essential baseline information for groundwater development planning and support sustainable groundwater resource management in the Metro City area.
Identification of Aquifer Potential Using Electrical Resistivity Tomography (ERT) Method in the Karst Area of Giritontro, Wonogiri, Central Java Asri, Nadia Putri Nur; Rahma Puspa; Anggara Putra Prasetya; Budy Santoso
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 27 No. 01 (2026): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol27-iss01/605

Abstract

Karst regions exhibit unique geological characteristics due to the dissolution of carbonate rocks, lending to the formation of complex underground aquifer systems. This study was conducted in BayemharjoVillage, Giritontro Sub-district, Wonogiri Regency part of the Sewu Karst Zone to identify aquifer potential using the dipole dipole electrical resistivity method. The survey was carried out along three measurement lines ranging from 216 to 710 meters in length, utilizing 72 electrodes with 10 meter spacing. The research involved data acquisition, processing, and interpretation using specialized resistivity software. Interpretation result revealed rock layers with potential as aquifers, particulary those with porous and permeable lithologies such as sandy limestone. Additionally, the presence of aquitard and aquiclude layers was identified, acting as barriers or flow paths for groundwater movement. The resistivity patterns and geological structures indicate the existence of groundwater pockets at various depths, which are crucial for managing clean water resources in this drought-prone region. The resistivity method prove to be effective in delineating aquifers zone within the complex karst environment.
The Relationship Between Probiotic Intake and Glycemic Profiles Among Metformin-Treated Type 2 Diabetes Patients Larasati, Rahma Ayu; Silviah; Afifah, Farabillah; Aniyah, Siti Hadzul
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 27 No. 01 (2026): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol27-iss01/648

Abstract

The ideal management of Type 2 Diabetes Mellitus should evolve from mere glucose-lowering strategies to a more comprehensive framework encompassing personalized medicine, technological integration, and systemic organ protection. A significant number of patients with Diabetes Mellitus (DM) continue to suffer from mortality and serious complications despite being on pharmacological therapy. Although trillions of dollars are spent annually on its management, diabetes remains a leading cause of mortality, claiming millions of lives each year across the globe. Probiotics have been proposed as an adjunctive therapy due to their role in modulating gut microbiota and glucose metabolism. This study aimed to analyze the effect of probiotic supplementation on Fasting Blood Sugar (FBS) levels in T2DM patients receiving metformin monotherapy. This experimental study involved 32 respondents, divided into probiotic intervention and placebo groups. FBS levels were measured pre- and post-intervention. Statistical analysis using the Paired T-Test showed a significant reduction in FBS levels (p=0.019). Conclusion: Probiotic supplementation significantly reduced FBS levels in T2DM patients on metformin monotherapy. However, this reduction was not clinically significant, as the final FBS levels did not differ significantly between the probiotic and placebo groups.  
Color Transitions in Tanjung-2 Chili Pepper at Green and Red Harvest Stages under Varying Growing Structures and Fertigation Levels Tivalli, Meivie; Kusumiyati, Kusumiyati; Anwar, Shazma; Konain Zahra Maqbool; Md Shazzadul Islam
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 27 No. 01 (2026): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol27-iss01/658

Abstract

Fruit color is a primary determinant of market acceptance for chili peppers (Capsicum annuum L.). This study quantified the green-to-red color transition at harvest using the CIELAB system. The experiment had a split-plot RCBD. Four growing structures as main plots: greenhouse, screen house, rain shelter, and open field. Four fertigation levels (25, 50, 75, and 100% ETc) as subplots. Color parameters L*, a*, b*, chroma, hue, and ΔE* were measured at both green and red harvest stages. Interactions between structure and fertigation level were significant for all color parameters. At the green stage, L* and b* values were highest in the screenhouse and greenhouse at 75–100% ETc. At the red stage, a* and chroma increased markedly, while hue decreased rapidly. This indicated accelerated carotenoid accumulation. Maximum ΔE* was observed in greenhouse and screenhouse with 100% ETc. Screenhouse with 75–100% ETc for the green harvest stage yields higher lightness (L*) and b* values. An open field combined with 50% ETc should be recommended for the red harvest phase to achieve higher a*, chroma, and ΔE* values, indicating improved red color intensity and visual quality. ΔE* was observed with 100% ETc, indicating accelerated ripening and a shorter harvest period.

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