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Zainal Abidin; Rifqi Aishatul Faroh; Eko Wahyu Santoso

Uranus: Jurnal Ilmiah Teknik Elektro, Sains dan Informatika 2025 Asosiasi Riset Teknik Elektro dan Informatika Indonesia

In the curcumin compound there are aromatic compounds that have electronic spins on each side of the benzene. In previous research, the concentration of curcumin and H2O as coatings on copper coils could provide physical changes to the characteristics of copper coils, namely increasing the strength of the magnetic field and increasing the electric current in the coil. The fuzzification process can be described using membership variables with concentrations of curcumin and H2O as input, magnetic field strength and current as output. It is known that the greatest concentration of curcumin indicates increased magnetic field strength and electric current. Simulation of the aromatic spin on the curcumin compound as an Op Amp shows that the highest curcumin concentration value results in an increase in the output voltage (Vout).                                                                                                

Prima Farhan Septian; Didik Budiyanto; Sumaryam Sumaryam

Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian 2025 Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Vannamei shrimp is one of the shrimp species with economic value and is one of the national leading commodities. On the other hand, one of the problems in vannamei shrimp cultivation is its slow growth, slow growth is caused by the less optimal absorption of nutrients in the feed. In dealing with these problems, one of the things that is done is the administration of probiotics. The addition of probiotics such as Biolacto containing Lactobacillus sp bacteria to the feed can increase the appetite of shrimp. This study aims to determine the effect of biolacto probiotics on feed on the growth of the absolute weight of vannamei shrimp. This study used a Complete Random Design (RAL) with four treatments: A (feed without a mixture of probiotics), B (probiotics 2 gr/100 gr feed), C (probiotics 4 gr/100 gr feed), and D (probiotics 6 gr/100 gr feed). Treatment B with a concentration of probiotics 2gr/100g feed gave the highest absolute weight growth of 9.2 gr. Water quality data during the study were obtained with water temperature ranging from 28.5 – 29.2°Celsius, salinity ranging from 36 – 37 ppt, pH ranging from 7.5 – 8.0, and dissolved oxygen ranging from 4.0 to 4.63 mg/l. The results of the ANOVA analysis of the four water quality parameters showed no difference between treatments and were in the optimal range of life of vannamei shrimp (Litopenaeus vannamei).

Maha Jalil Jabbar; Hatef Rahim Mahdi

Jurnal Riset Ilmu Farmasi dan Kesehatan 2025 Asosiasi Riset Ilmu Kesehatan Indonesia

Ferritin is considered a protein that contains iron and includes two types of subunits: ferritin light chain (FTL) and ferritin heavy chain (FTH), which increases when inflammation increases, especially in the heart and kidneys, and helps in converting ferrous iron into iron. The light subunit is present in the liver and spleen and has a role in storing iron (1). Coronavirus (COVID-19) caused by the new coronavirus SARS-CoV-2 is a disease It is new to humanity, as it is accompanied by symptoms during the disease, including blood abnormalities, with activation of the immune system and phagocytic monocytes, and damage to the lungs. In our study, we showed that ferritin is an indicator of the severity of the disease and mortality (2). Acute respiratory syndrome (Coronavirus), which causes pneumonia and damages the heart, liver, and kidneys, is caused by the appearance of acute inflammatory cytokines that lead to death (3). A cytokine is a small protein that transmits messages to help stimulate the body’s immune response, and its rise causes increased inflammation, and these Cytokines secreted by macrophages (TNF-α, IL-10, IL-6) where there is high inflammation in the plasma. An indicator of the progress and severity of the disease (3).

Ahmed Kareem Mohammed; Zena Kareem Mohammed

Jurnal Riset Ilmu Farmasi dan Kesehatan 2025 Asosiasi Riset Ilmu Kesehatan Indonesia

Diabetic ketoacidosis (DKA) is defined as life threatening condition that happen mainly in T1DM and less frequently with T2DM in certain situation, an increase in the serum concentration of ketones greater than 3 mmol/L, a blood sugar level greater than 11mmol/L (although it is usually much higher), and a blood (usually arterial) pH less than 7.3 and it is the most frequent acute hyperglycemic emergency in persons with diabetes mellitus (DM). The main cause of morbidity and mortality in children with diabetes is DKA from both type1 DM (T1DM) and T2DM. Children with diminished metabolic control or previous episodes of DKA are at higher risk, as are prepubescent and adolescent girls, children with psychiatric disorders, such as eating disorders, and children who come from challenging families with lower socioeconomic status and inadequate health insurance as well as low general education levels.

Tri Utari Imayuni; Jhon Piter; Mariska Sisilia; Rio Brandlee; Kartina Rahmadani Rambe +1 more

International Journal of Management 2025 Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

One of the districts with the greatest concentration of ethnic Chinese residents and the highest concentration of young business owners in Medan City is Medan Kota District. The purpose of this study is to clarify the potential impact of ethnic Chinese youth's independent enterprises on labor absorption in Medan Kota District. A quantitative descriptive research design is employed, and SPSS version 17 analysis is used to perform the Multiple Linear Regression research method. Ho was rejected while Ha was accepted, according to the ANOVA test, which revealed that Fcount> Ftable. This indicates that ethnic Chinese youth-owned independent enterprises significantly improve labor absorption, specifically 72%.

Esa, Sonia Dora Febri; Sari, Anjar Ruspita; Sabarisman, Iman; Setyowati, Rini

JITIPARI (Jurnal Ilmiah Teknologi dan Industri Pangan UNISRI) 2025 Universitas Slamet Riyadi Surakarta

Ready-to-drink (RTD) chocolate beverages are increasingly popular, yet traditional formulations often contain dairy components while some consumers are lactose intolerance. The primary challenges in RTD chocolate beverages include achieving acceptable flavor profiles and managing cocoa powder precipitation. This study aimed to formulate a non-dairy ready-to-drink chocolate beverage using a hedonic test and  enhance its physical stability through varied xanthan gum concentrations applying Completely Randomized Design (CRD).A hedonic test involving 30 untrained respondents determined the most preferred formula with the highest preference level (3.7), which consisted of 40% local cocoa powder from Kulon Progo, Yogyakarta, 15% commercial cocoa powder, and 45% castor sugar. Stability analysis involved incorporating xanthan gum at concentrations of 0.1%, 0.15%, and 0.2% (w/v). Results demonstrated that 0.2% xanthan gum concentration yielded the highest viscosity (98 N.s/m²), significantly differing from the control. The lowest precipitation was observed at 0.2% concentration (p-value 0.048). Particle size analysis revealed progressive reduction from 21 μm to 5 μm with increasing xanthan gum concentration. The study conclusively identified 0.2% (w/v) xanthan gum as the most effective concentration for improving chocolate beverage stability, offering a promising approach for developing innovative, dairy-free RTD products.

Muhammad Iqbal Musthofa; Yundhera Danazahra; Yaumun Nurul Chotimah; Hanifa Octaviani; Irwan Iskandar

Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan 2025 Asosiasi Riset Ilmu Teknik Indonesia

The Jelekong landfill was a temporary landfill site following a landslide at the Leuwigajah landfill. TPA Jelekong was officially closed at the end of 2005 because it was no longer able to accommodate the increasing volume of waste. However, the impact of activities from the former landfill still has the potential to pollute the environment, especially groundwater sources. The research aimed to identify the physical and chemical parameters of water in the Jelekong ex-landfill case study area and the surrounding area, and to compare the physical and chemical parameters of water between the Jelekong ex-landfill and the landfill that is still operating (Sarimukti landfill). Data were obtained from 4 water sample points and tested using several test methods, namely Inductively Coupled Plasma Mass Spectrometry (ICP-MS), Ion Chromatography (IC), alkalinity, and stable water isotopes. The results showed that the physical characteristics of the Jelekong area generally have a neutral pH with one point having an alkaline pH (JL-02) due to interaction with andesite lithology and the highest DO concentration at point JL-02. While the Sarimukti landfill has a pH value of 7.89-8.27 indicating the result of high bicarbonate concentrations, the TDS value of 15700-18200 ppm indicates the large number of ions and solutes derived from organic and inorganic waste. Piper diagrams show two water facies in the Jelekong area, Ca-HCO3 and Na-HCO3. Sample JL-03 indicates a mixture with landfill leachate due to high Cl and SO4 concentrations. Sample JL-01 still indicates leachate because when compared to the sarimukti sample, the Cl and SO4 concentrations are still quite high indicating a result of both organic and inorganic waste. Stable isotope test results indicated that the water was derived from local precipitation.

Khairiyah, Nurul; Fitriani, Shanti; Nopiani, Yanti

JITIPARI (Jurnal Ilmiah Teknologi dan Industri Pangan UNISRI) 2025 Universitas Slamet Riyadi Surakarta

The purpose of this study is to ascertain the optimal concentration and the impact of adding durian seed flour to the ice cream's physical, chemical, and sensory characteristics. This investigation was carried out experimentally with three replications and six treatments using a totally randomized methodology. UD1 (control), UD2 (with 0.2% durian seed flour added), UD3 (with 0.4% durian seed flour added), UD4 (with 0.6% durian seed flour added), UD5 (with 0.8% durian seed flour added), and UD6 (with 1.0% durian seed flour added) was the treatments that were employed. Descriptive and hedonic sensory evaluations of softness, total solids, protein content, and melting speed were all significantly impacted (P<0.05) by variations in durian seed flour in terms of lowering overrun.  The selected treatment in this study was treatment UD3 (addition of 0.4% durian seed flour) with overrun of 31.85%, melting speed of 20.29 minutes, total solids of 42.95%, protein of 5.82%, and fat of 7.85% with characteristic light purple color, not smelled of durian seed flour, not taste of durian seed flour, very soft texture, and overall the panelists liked it.

Assad Abbas Khalaf

Jurnal Riset Ilmu Farmasi dan Kesehatan 2025 Asosiasi Riset Ilmu Kesehatan Indonesia

Essential oils of Marjoram (Marjorana hortensis) has been evaluated for possible antioxidant activity. Essential oils were hydrodistilled and the chemical composition of volatile fraction was determined by GC. γ-Terpinene, sabinene, β-phellandrene, terpinen-4-ol and di (2-ethylhexyl) phthalate were the major constituents of Marjoram.  The reducing power of essential oils of Marjoram was measured by the ferricyanide method. Different concentrations of Marjoram oil (MO) 25, 50, 75, 100 and 200 ppm were investigated. Higher absorbance at 700 nm of the reaction mixture indicated greater reducing power. The reducing power of an antioxidant is an important parameter reflecting one aspect of its antioxidant properties. The obtained results revealed that increasing the antioxidant capacity is MO in all tested concentrations.   The antioxidant capacity of fat-soluble antioxidant was expressed as equivalents of α-tocopherol (nmol/g oil) using a molar absorption coefficient of α-tocopherol (є= 4.0 × 103 M-1 Cm-1. The percent of H2O2 scavenging activity of the tested EOs increased in the MO at all tested concentrations. There was a significant difference among all EOs samples in the percent of H2O2 scavenging activity. a positive correlation has been observed between concentrations and antioxidant activity for 3 days' test period. There were significant differences among the tested EOs in their antioxidant activities. For 3 days, the antioxidant activity of the tested EOs decreased statistically in MO. BHT on the peroxide value of sunflower oil as mmol eq O2/kgoil in the seventh day

Putri Rismawati; Nutrisia Nu’im Haiya; Iwan Ardian; Intan Rismatul Azizah

Jurnal Ilmu Kesehatan dan Gizi 2025 Pusat Riset dan Inovasi Nasional

The intensity of menstrual pain in adolescent girls can decrease study concentration due to discomfort and anxiety affected by hormonal changes during menstruation. This study aims to determine the relationship between the level of anxiety and intensity of menstrual pain with adolescent girls' study concentration. This study uses a quantitative method with a cross sectional analytical approach, with a total of 133 respondents determined by the solvin formula. Data collection used three instruments: Anxiety level, intensity of menstrual pain, and study concentration. The data analysis was carried out using the Spearman Rank test with valid and rebable questionnaires. The study showed that there was a significant relationship between anxiety level and learning concentration P-Value = 0.000 and rho = 0.426 while menstrual pain and learning concentration P-Value = 0.000 and rho = 0.515. so it can be concluded that there is a relationship between the level of anxiety and intensity of menstrual pain and the concentration of adolescent girls' learning. This research can increase the role of community nurses in counseling, reproductive education and relaxation training for female students with menstrual pain, anxiety and learning concentration disorders.

Risky Bagas Sadzali; Wahyu Endang Styowati; Betie Febriana

Jurnal Ventilator: Jurnal riset ilmu kesehatan dan Keperawatan 2025 Stikes Kesdam IV/Diponegoro Semarang, Indonesia

Self-confidence and anxiety are the main factors that affect an athlete's performance during a match. High self-confidence has a positive impact on an athlete's ability to focus, control themselves, and perform optimally, while high anxiety tends to decrease an athlete's concentration, stamina, and performance. Data shows that many athletes in Indonesia experience anxiety before a match, which significantly affects their performance. Therefore, efforts to increase self-confidence and reduce anxiety levels are very important to help athletes perform optimally, achieve achievements, and bring pride to the nation. Quantitative research type with cross sectional approach. The sample used was 17-year-old athletes who participated in the 2024 Bahurekso Cup. The technique used in sampling was total sampling of 109 respondents. The correlation test used in this study was uci chi square. The results of the study using the Chi Square test obtained a p value = 0.000 (p <0.05) which means that there is a relationship between self-confidence and anxiety levels in athletes when facing matches. There is a close relationship between self-confidence and anxiety levels in facing athletic matches in Central Java.  

Alya Rifqi Ghifari; Cleonara Yanuar Dini

Jurnal Ilmu Kesehatan dan Gizi 2025 Pusat Riset dan Inovasi Nasional

Breakfast is important for school students, especially teenagers because schools are full of activities that require a large amount of energy that can impact concentration. This study aims to determine the relationship between macronutrient intake during breakfast and the concentration of students of SMA Negeri 1 Grogol, Kediri. The design of the study is descriptive analytics with a cross-sectional research design including a total of 88 students. The sampling technique is simple random sampling. Breakfast data collected using food recall and concentration levels used Grid Concentration Test sheets. The data analysis technique used Somers’d. The result showed there is a significant relationship between carbohydrate (p = 0,017; r = 0,219) and protein intake (p = 0,008; r = 0,266) consumed at breakfast and student concentration, the relationship between the two variables was quite weak, but there was no significant relationship between intake of fat consumed at breakfast and student concentration (p = 0,220; r = 0,112). The conclusion of this study is that carbohydrate and protein intake consumed at breakfast is associated with student concentration.

Nurhasan, Nurhasan; Erta, Erta; Hapsari Shinta Citra Puspita Dewi

Nusantara: Jurnal Pengabdian kepada Masyarakat 2025 Pusat Riset dan Inovasi Nasional

Mental toughness training is an important requirement for young Petanque athletes, given that this sport demands high concentration, emotional stability, and the ability to respond quickly and appropriately to competitive pressure. This community service program aims to improve the psychological abilities of young athletes through training focused on anxiety management, strengthening focus, developing a positive mindset, and increasing self-confidence. The training method was conducted classically through the delivery of material and direct practice designed according to the psychological needs of FOPI East Java athletes. The evaluation of the training results showed an increase in mental toughness, reflected in the athletes' ability to cope with the pressure of competition, maintain calm, and maintain concentration in competitive situations. The athletes also showed an increase in mental preparedness, a more stable response to pressure, and a more positive mindset towards their abilities. These results indicate that psychological intervention through mental resilience training plays an important role in supporting the performance of Petanque athletes, while also serving as the basis for the development of follow-up programs that focus on mental aspects as an integral part of performance development. This program makes a significant contribution to the character building and competitive readiness of young athletes on an ongoing basis.

A. Artifasari; A. Sri Ulfi Nofriati

Jurnal Pengabdian Masyarakat Terapan 2025 Lembaga Pengembangan Kinerja Dosen

Anxiety in children and adolescents can lead to academic, sports and social performance problems. Anxiety also causes disturbances in the thought process, learning concentration, perception and can cause obstacles in the lives of those who are still studying which of course will affect their academic achievement. The mental health of students is a variable that needs attention as soon as possible. Because in addition to emotional factors, external factors can also be non-academic support/obstacles to the success of the learning process. Students of the Diploma Three Nursing study program at the Batari Toja Bone Institute, Academic Year 2024 experience different anxieties, where they will face final semester exam preparations, or practical exams. One of the complementary therapies used to overcome anxiety is the use of lemon aromatherapy by inhalation which can be done through a spray bottle or inhaled through tissue or gloves. The purpose and method of this community service activity is to conduct a Pre-test and Post-test then demonstrate and conduct lectures or counseling to students to reduce their anxiety when they are about to face the final semester exam using lemon aromatherapy. Based on the results of the counseling activities, it can be stated that before the counseling was given, 9 respondents (37%) experienced severe anxiety, 7 respondents (2.91%) experienced moderate anxiety, due to lack of knowledge. After being given counseling, it can be stated that 9 respondents (37%) experienced moderate anxiety, 6 respondents (25%) experienced mianxiety currently,

Asia Ali Hamza

Jurnal Pelaksanaan Pengabdian Bergerak bersama Masyarakat 2025 Asosiasi Riset Ilmu Kesehatan Indonesia

Background: Diabetes mellitus type 2  is a chronic metabolic disorder characterized by persistent hyperglycemia and endocrine dysfunction, including disturbances in luteinizing hormone, testosterone, and insulin levels. Moringa pterygosperma, known for its antidiabetic, antioxidant, and anti-inflammatory properties, has been explored for its therapeutic potential in mitigating diabetes-induced complications.Objective: The present study aimed to estimate the effects of Moringa pterygosperma extraction on endocrine and metabolic parameters against the diabetic rats induced by alloxan, by the mensurate the on LH, testosterone, glucose, and insulin levels.Methods: Forty adult male albino Wistar rats were used in the present study which was divided into four equal groups: Control, Negative Control, Treatment one which used 100 mg/kg extract, and Treatment two which used 200 mg/kg extract). Diabetes was induced with alloxan monohydrate (100 mg/kg). After 41 days, serum samples were analyzed for testosterone, LH, glucose, and insulin concentrations. Results: The NC group showed significant reductions in testosterone (0.0926 ± 0.0081 ng/mL) and insulin (0.560 ± 0.09274 µIU/mL) levels, with increased luteinizing hormone (0.592 ± 0.03 ng/mL) and glucose (464.6 ± 18.71 mg/dL) concentrations, indicating severe endocrine and metabolic disruptions. Treatment with Moringa pterygosperma extract significantly improved these parameters in a dose-dependent manner. The T2 group exhibited near-normal levels of testosterone (0.1769 ± 0.01 ng/mL), insulin (2.140 ± 0.1435 µIU/mL), LH (0.3163 ± 0.063 ng/mL), and glucose (105.8 ± 9.34 mg/dL).

Alexander Halim Santoso; Fidelia Alvianto; Valentino Gilbert Lumintang

Jurnal Pengabdian Bidang Kesehatan 2025 PPNI UNIMMAN

Healthy and balanced nutrition plays an important role in supporting students' physical, mental, and academic health, especially during growth. This community service activity aims to increase students' awareness of the importance of a healthy and balanced diet to support the learning process. This activity is carried out by involving nutrition education and nutritional status checks, such as body mass index (BMI), through a school-based approach at SMA St. Yoseph, East Jakarta. Students who have a healthy and balanced nutritional intake tend to have higher learning performance and concentration. Conversely, students with poor nutritional intake are more susceptible to infectious diseases and have lower attendance rates at school. Education provided interactively can increase students' awareness and understanding of the importance of a healthy and balanced nutritional intake. This is expected to be the first step to prevent nutritional disorders and improve the quality of students' health and academics in the future.

Setia Murni Telaumbanua; Karunia Gea; Leonardus Historis Manao; Mohamad Yunus Laia; Bimerdin Daely +1 more

Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian 2025 Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

This study aims to determine the effect of liquid biofertilizer and biochar on the growth and yield of mustard greens (Brassica juncea). This study was conducted from November to December 2023 in the Agrotechnology practicum field, Faculty of Science and Technology, Nias Raya University. The experimental design used was a 3 x 4 factorial Randomized Block Design (RAK) with 3 replications. There were two factors studied, namely the concentration of liquid biofertilizer consisting of three levels, namely Control (P0), 75 ml (P1), and 150 ml (P2), and biochar consisting of 4 levels, namely Control (B1), 1kg (B2), 2kg (B2) and 3kg (B3). The variables observed included plant height, number of leaves, and leaf length, leaf width, and wet weight. The concentration of liquid biofertilizer had a significant effect on leaf length, leaf width, and wet weight of plants aged 35 HST, had no significant effect on plant height, number of leaves aged 7, 14, 21, and 28 HST. The best dose of liquid biofertilizer treatment was at a concentration of 150 ml (P2). The provision of biochar had a significant effect on leaf length, leaf width, and plant wet weight at the age of 35 HST, had no significant effect on plant height and number of leaves at the ages of 7, 14, 21, and 28 HST. The results showed that there was a significant interaction on leaf length, leaf width, and plant wet weight, a significant interaction on leaf length, leaf width, and plant wet weight at the age of 35 HST, while other parameters had no significant effect. The interaction between the concentration of liquid fertilizer 150 ml (P2) with 3 kg of biochar (B3) was the best treatment combination.

Ashwaq Jabbar Almiahy; Athraa Shakir Dakhil

Jurnal Riset Ilmu Farmasi dan Kesehatan 2025 Asosiasi Riset Ilmu Kesehatan Indonesia

This search intended to speculate the role of lavender ethanolic extract by reducing the toxicity of manganese in male rats. 32 white male Norwegian rats were divided into 4 equal groups. Group 1: as a control group left without treatments (only 1 ml of distilled water/ animal/ day). Group 2: were dosed manganese chloride at a concentration of 100 mg/ kg b.w. / day. Animals in Group 3 and Group 4 were dosed Manganese chloride at a concentration of 100 mg/kg b.w. then lavender ethanolic extract at a concentration of 200 and 400 mg/kg respectively, all by oral gavages and treated daily for six weeks. Then the next criteria were investigated: Neurotransmitters (dopamine and Ach (acetylcholine) in the mid brain) serotonin in serum. Oxidation indicators (glutathione and malondialdehyde in the brain and superoxide dismutase and catalase in serum). The results exhibited in both groups 3 and 4 there were a significant decrease in the concentrations of Ach accompanied by a significant increase in levels of dopamine and serotonin, also return levels of MDA (Malondialdehyde) to normal, as well as a significant increase in GSH (Glutathione) concentrations in rats mid brain. Moreover, the significant rising of SOD (Superoxide dismutase) and CAT (Catalase) levels in serum of rats in these groups indicated a noticeable improvement was achieved by lavender ethanolic extraction as compared to group 2. Conclusion, the antioxidant and antitoxic activity of lavender ethanolic extract promises in grate achievement in various health fields, including medicine, food industries and cosmetics.

Mardatilla Mardatilla; Abdul Fattah; Sitti Satriani

Jurnal Budi Pekerti Agama Islam 2025 Asosiasi Riset Ilmu Pendidikan Agama dan Filsafat Indonesia

The common problems faced by students include feeling bored, lacking concentration, and being unmotivated in learning due to the lack of collaboration among students and monotonous learning activities. Therefore, this study aims to implement ice-breaking techniques in Islamic Religious Education to improve students' learning outcomes. This research was conducted using Classroom Action Research (CAR) with two cycles, each consisting of two meetings. Each cycle followed four stages: Planning, Implementation, Observation, and Reflection. Data collection techniques included tests in the form of questions and non-test techniques such as interviews, observations, questionnaires, and documentation. Based on the results of the Classroom Action Research, it was concluded that the implementation of ice-breaking techniques in Islamic Religious Education positively influenced students' learning motivation, leading to improved learning outcomes among fifth-grade students at UPT SPF SD Inpres Perumnas 1 Makassar. The study results showed that in the pre-test, the students' average score was 68.9 (Low), with six students achieving mastery, resulting in a 30% mastery level (Low). In the first cycle, applying the ice-breaking technique to students' understanding of Islamic Religious Education resulted in an average test score of 79 (Moderate), with 13 students achieving mastery, reaching a 65% mastery level (Low). In the second cycle, the implementation of ice-breaking techniques led to an improvement in students' learning outcomes, with an average score of 89.6 (High), and 18 students achieving mastery, reaching a 90% mastery level (High). The success indicators in this study, using the Classroom Action Research (CAR) method, demonstrated an improvement in students' understanding, as evidenced by the increase in mastery learning percentages from the pre-test, first cycle, and second cycle, ultimately reaching 80% of the total number of fifth-grade students as the final learning achievement.

Manek, Maria Putri; Pareira, Magdalena Sunarty; Tuas, Maria Angelina

Hidroponik : Jurnal Ilmu Pertanian Dan Teknologi Dalam Ilmu Tanaman 2025 Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

This study aims to assess the optimization of organic fertilizer in plant growth kale (Ipomea sp.) using a hydroponic system. The research method used is a complete random design of 2 factorial. The first factor is the concentration of POC which consists of 3 levels of treatment, namely K1 = 100 ml POC + 1 L of water. K2 = 200 ml of POC + 2 L of water. K3= 300 ml of POC + 3 L of water. The second factor is the frequency of administration of POC (W) which consists of 3 levels of treatment W1 = every 2 days W2 = every 4 days, W3 = every 6 days. So there are 9 combinations, namely: K1W1, K1W2, K1W3, K2W1, K2W2, K2W3, K3W1, K3W2, K3W3 between treatments with repeated 3 times so that a total of 27 trials. The measured parameters include temperature, plant height, number of leaves and Root Length. The results showed that the interaction occurred at the final temperature, plant height: 21 HST 28 HST, number of leaves: 7 HST, 14 HST ,21 HST and 28 HST and Root Length. The frequency of POC using banana stems with a time of 2 days was able to increase, plant height 21 HST, 28 HST, number of leaves 7 HST,14 HST,21 HST,28 HST, Root Length, while at a frequency of 4 days was able to increase the growth of kale plants in the late afternoon temperature parameters. At a frequency treatment once every 6 days is able to increase the final temperature. Concentration of POC using banana stem with a dose of 100 ml POC +1 L of Water, able to increase plant height 21 HST and 28 HST, the number of leaves 7 HST, 14 HST,21 HST,28 HST, Root Length. This research is expected to contribute to sustainable agricultural practices and the development of efficient hydroponic systems.