bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengaruh Pemberian Berbagai Macam Bahan Organik terhadap Ketersediaan Hara Nitrogen, Fosfor dan Kalium serta Serapan Nitrogen oleh Jagung (Zea mays L.) pada Tanah Ultisols
Authors: Mustaqim Ahmad , Ifansyah Hairil , Saidy Akhmad Rizalli 
Published: April 2024

Ultisols distributes spreadly in Indonesia, but this soil has low fertility. Therefore, the application of organic matter (OM) is a common management to increase this soil fertility. The purpose of this study was to determine the role of different types of OM (originated from animals and plants) on the availability of nitrogen, phosphorus, and potassium as well as nitrogen uptake in maize in Ultisols. Soil with a mass of 5 kg without organic matter (control), with the application of chicken manure, cow manure, swallow manure, kirinyuh, babadotan, and kalopo manure were incubated in experimental pots for two weeks at 60% field capacity. After the completion of the incubation period, soil sub-sampling was carried out for the determination of available N, available P and exchangeable K. Furthermore, in each experimental pot, corn seeds were planted, and the observations of dried-weight of corn and nitrogen uptake in corn were observed in a vegetative phase. The results showed that the application of different types of organic matter increased soil pH, nitrate content, exchangeable K, plant dried-weight and plant nitrogen uptake. The content of ammonium and available P was not affected by OM addition. The results also showed that OM derived from animals resulted in higher increases in pH and exchangeable K than those derived from plants. However, OM derived from plants resulted in higher increases in nitrate, plant dry weight and better plant N uptake than OM from animal waste. The results of this study show that the application of OM results in increases in some soil chemical properties, in which the degree of increases in soil chemical characteristics is controlled by the OM origin.
THE RELATIONSHIP BETWEEN THE LEVEL OF KNOWLEDGE, ATTITUDES, AND ACTIONS WITH THE BEHAVIOR OF CHECKING THE DENTAL AND ORAL HEALTH OF PREGNANT WOMEN
Authors: Istiqamah Andi , Hatta Isnur , Wardani Ika Kusuma 
Published: April 2024

Background: The number of dental and oral health the Indonesian is 57.6%, which is dominated by women (58.5%), especially women of productive age. During pregnancy, there are physical changes, hormonal changes, and behavioral changes, resulting in the changes for the maintenance of dental and oral hygiene. It becomes worse due to an increase in the estrogen and progesteronehormones. Purpose: To analyze the relationship between the level of knowledge, attitudes, and actions with the behavior of checking the dental and oral health of pregnant women. Methods: This study used an analytical observation with a cross-sectional research design. The samples of the study were calculated using the sample size correlation formula. The population in this study were all pregnant women from December 2020 to May 2021,at the Tana Lili Health Center, North Luwu Regency and the samples used were 34 respondents. Results: 70% of pregnant women have a sufficient level of knowledge, 79% of pregnant women have a quite good attitude, 68% of pregnant women have bad actions, and 85% of pregnant women have less behavior. The Spearman correlation test showed a significant relationship between the level of knowledge and the behavior of checking the oral health of pregnant women (p = 0.003), and the strength of the correlation was moderate (r = 0.497). There was a significant relationship between attitudes and behavior of checking the dental and oral health of pregnant women (p=0.023), and the strength of the correlation was low (r=0.390). The sig value for the relationship between action and behavior was (p = 0.009) meaning that there was a significant relationship between the action and the behavior of checking the dental and oral health of pregnant women with a value (r = 0.439) meaning that the correlation strength was moderate. Conclusion: There is a significant relationship between the level of knowledge, attitudes, and actions and the behavior of checking the dental and oral health of pregnant women. Keywords: Action, Attitude, Behavior of checking the dental and oral health, Knowledge
RELATIONSHIP OF SANITATION AND SOCIO ECONOMIC STATUS OF PARENTS TO CARIES SEVERITY
Authors: Ilvani Thine Putri Bestari , Hatta Isnur , Adhani Rosihan 
Published: April 2024

Background: Riskesdas stated the prevalence of caries in children aged 5-9 years in Indonesia in 2018 was 92.6%. External caries factors consist of environment, behavior, health services, and heredity. The physical environment is one of the health environments that contributes the most to health status, including dental and oral health. Sanitation with the Community-Based Total Sanitation (STBM) program is part of the physical environment. The STBM pillars consist of: stopping open defecation, washing hands with soap, drinking water and food management, waste management, and liquid waste management. Behavioral predisposing factors include parents' socioeconomic status which is determined by education, occupation, and income. Socioeconomic status affects the ability of parents to care for their children's teeth. Purpose: To analyze the relationship between sanitation and socioeconomic status of parents on the severity of caries in kindergarten children. Methods: This research is an analytic observational study with a cross-sectional method. The respondents of this study were 49 children of TK Al Hidayah in Mandiangin Barat Village, Banjar Regency, South Kalimantan Province. Data collection includes questionnaires and the def-t assessment sheet. Results: Spearman correlation test p=0.435 showed no relationship between sanitation and caries severity. Spearman correlation test p=0.0001 showed that there was a relationship between the socioeconomic status of parents and the severity of caries. The correlation coefficient -0.519 indicates a medium strength relationship in the opposite direction. Conclusion: There is no relationship between sanitation and caries severity. There is a relationship between the socioeconomic status of parents with the severity of caries. Keywords: def-t index, Socio-economic, STBM.
Evaluating Porins OmpK35 and OmpK36 mRNA Expression in Ciprofloxacin-Resistant Klebsiella pneumoniae
Authors: Sulistiyawati Indah , Wahyono Daniel Joko , Siswandari Wahyu 
Published: April 2024

Porin messenger RNA (mRNA) expression significantly influences porin permeability and reduces antibiotic penetration. Klebsiella pneumoniae has developed resistance to several antibiotics. Decreased expression levels of OmpK35 and OmpK36 porins result in changes in the porin profile and even functional loss of porins. This research aimed to analyze the relative expression of the outer membrane porins, OmpK35 and OmpK36. The research methodology involved MIC assays and quantification of OmpK35 and OmpK36 mRNA using RT-qPCR. The relative expression of OmpK35 and OmpK36 in clinical isolate K. pneumoniae is 0.8925 and 0.5877, respectively. The porin permeability of OmpK35/K36 mRNA positively correlated with the MIC values of OmpK35 (p-value = 0.029) and OmpK36 (p-value = 0.016), respectively.

Keywords: Ciprofloxacin, Klebsiella pneumoniae, OmpK35/K36, porin permeability
Physicochemical Properties and Biodegradability of Biofilm Based on Taro Starch and Duck Bone Gelatin
Authors: Laksanawati Trias Ayu , Khirzin Muhammad Habbib , Amaniyah Maghfirotul , Meidayanti Karina , Deva Bella Diah 
Published: April 2024

Biofilm is an environmentally friendly plastic that is easily biodegradable. However, not all biodegradable plastics have the desired properties for packaging because they are made from renewable natural materials. The biofilm in this study was made from renewable natural raw materials that had never been used before, namely taro starch and duck bone gelatin. Mixing the two materials improve their physical properties and biodegradabilily This study was to to investigate the effect of adding duck bone gelatin 0%, 5%, 15%, 25% and 35% on physicochemical properties, namely color, oxygen permeability, and metal content (Pb and Cd) as well as biodegradability of biofilms. The method used in this research was solution casting. The results obtained from the color parameter with the highest lightness (L) value were produced in the addition of 15% of 85.26, for the highest value of color a was produced in the addition of 0%, namely 0.94, and the value of color b with the addition of 35% resulted in the highest color value of 1.67. The highest percentage of biodegradability was produced on day 14 with the addition of 35% duck bone gelatin in compost soil to produce a percentage of 100%, while for barren soil the yield was 54.54%-66.66%. The content of Cd and Pb in the biofilm is below the SNI limit. Biofilm is impermeable which can be used as food packaging.

Keywords: Biodegradability, biofilm, gelatin, physicochemical, starch
Enhancement of TiO2 Photocatalyst Using Rare Earth Oxide (La2O3) via a Simple Preparation Method for Degradation of Methylene Blue under Visible Light
Authors: Natsir Taufik Abdillah , Pamungkas Alam Reformasi Putra , Aprilita Nurul Hidayat 
Published: April 2024

The modification of TiO2 using rare earth oxide (La2O3) to increase the photodegradation activity of TiO2 under visible light has been conducted. The goal of this research is to identify the influence of La2O3 on the TiO2 to the photocatalytic activity of TiO2. The mixed oxide of TiO2/La2O3 was prepared using the precipitation method. The as-prepared catalyst was then calcined at 923 K. The photocatalyst was characterized using SRUV, XRD, FTIR, and SEM-EDX. The results showed that the photocatalyst activity of TiO2/La2O3-923 under visible light in the degradation of methylene blue was higher than pristine TiO2. The decrease in bandgap energy of TiO2/La2O3-923 from 3.2 eV to 3.01 eV was not the main factor in the increase of photocatalytic activity of TiO2/La2O3-923. The optimum condition of photodegradation of MB was obtained when the ratio of TiO2/La2O3 was 5, the concentration of MB was 10 ppm, the reaction time was 300 min, and the mass of the photocatalyst was 0.25 g. The reusability of TiO2/La2O3-923 was stable up to 3 sequent runs with the MB photodegradation of more than 90%. The mechanistic study of the mixed oxide TiO2/La2O3 showed that the hydroxyl radical played an important role in its high photocatalytic.

Keywords: TiO2-La2O3, photocatalyst, visible light, methylene blue
Molecular Docking Analysis of Hydroxy Chalcones and Flavones from Anisaldehyde and Veratraldehyde as EGFR Inhibitors: Predicting Anticancer Potential
Authors: Pambudi Wisnu , Haryadi Winarto , Matsjeh Sabirin , Anwar Chairil 
Published: April 2024

This study aimed to investigate the potential of hydroxy chalcone and flavone derivatives as inhibitors of the epidermal growth factor receptor (EGFR) with anticancer properties. Molecular docking simulations were conducted using Autodock Tools 1.5.6 and Discovery Studio visualizer. The EGFR protein structure with the PDB code 1M17 was utilized as the receptor, explicitly targeting the binding pocket. Redocking of the reference ligand erlotinib yielded a binding energy of -7.51 kcal mol-1 with an RMSD of 0.54 Å, confirming the accuracy of the docking protocol. The hydroxy chalcone and flavone derivatives exhibited binding energies ranging from -6.50 to -7.67 kcal mol-1 when interacting with the EGFR protein. Among the studied compounds, compound 2',5'-dihydroxy-3,4-dimethoxychalcone (1g) displayed the lowest binding energy. Interactions involving amino acids such as Met769, Ala719, Thr766, Lys721, and Glu738 were identified as crucial hydrogen bonding interactions between the ligands and the EGFR protein. These findings suggest that 2',5'-dihydroxy-3,4-dimethoxychalcone holds strong potential as a tyrosine kinase inhibitor, positioning it as a promising candidate for further development as an anticancer agent. The outcomes of the computational analysis conducted through the pkCSM online platform indicated that the chemical 2',5'-dihydroxy-3,4-dimethoxychalcone had favorable pharmacokinetic characteristics and showed low toxicity levels.

Keywords: molecular docking, hydroxy chalcone, flavone, egfr, ADMET
Silver-and-Sulphur-Codoped Fe3O4/TiO2 as a Magnetically Separable Photocatalyst for Methylene Blue Degradation under Visible Light
Authors: Kunarti Eko Sri , Agustiningsih Dewi , Pambudi Fajar Inggit , Rusli Stefen , Rusdiarso Bambang 
Published: April 2024

This research aimed to investigate how the addition of silver and sulphur dopants modified the TiO2 photocatalyst to enhance its responsiveness to visible light and improve its photocatalytic activity for methylene blue degradation. In addition, Fe3O4 was also added as a core to add magnetic properties to the photocatalyst material. The Fe3O4/TiO2-Ag/S materials were prepared using FeCl3.6H2O and FeSO4.7H2O as the magnetite precursors, titanium tetraisopropoxide (TTIP) as the TiO2 precursor, while AgNO3 and CH4N2S were used as the sources for silver and sulphur dopants, respectively. The synthesized materials were next characterized using FT-IR, XRD, UV-Vis spectrophotometer, SEM-EDX, TEM, and VSM. The activity of the photocatalyst was then assessed through methylene blue degradation in a closed reactor involving various contained Ag:S ratios and reusability examination. The evaluation of photocatalytic degradation results was performed using UV-Vis spectrophotometry. Afterwards, the research findings indicate that the Fe3O4/TiO2-Ag/S was successfully synthesized and exhibited magnetic properties with a saturation magnetization value of 5.33 emu/g. The highest photocatalytic activity (98.21%) was observed in Fe3O4/TiO2-Ag/S (1:1) with a band gap energy value of 2.64 eV under visible light exposure at pH 10, 120 min, 10 mg mass of the photocatalyst, and methylene blue concentration of 5 mgL-1. Furthermore, the Fe3O4/TiO2-Ag/S photocatalyst was known to perform good stability through four reuse cycles.

Keywords: Dopants, Fe3O4/TiO2-Ag/S, methylene blue, photocatalytic degradation
Tindak tutur ilokusi dalam film pendek “Sodara Seng Sedarah” karya Geraldy Laimera: Kajian pragmatik
Authors: Opier Uun Ushwatun Khasana , Sri Harini Ekowati  , Miftahulkhairah Anwar  
Published: April 2024

Penelitian ini bertujuan untuk mendeskripsikan jenis tindak tutur ilokusi dalam film pendek “Sodara Seng Sedarah”. Penelitian ini menggunakan teori tindak tutur Searle, yang mengkategorikan tindak tutur ilokusi ke dalam lima kategori: asertif, direktif, ekspresif, komisif, dan deklaratif. Metode yang digunakan adalah deskriptif kualitatif. Sumber data penelitian ini adalah dialog atau tuturan yang diucapkan oleh tokoh dalam film pendek "Sodara Seng Sedarah". Teknik pengumpulan data menggunakan teknik simak bebas libat cakap (SBLC) dan teknik catat. Analisis data dalam penelitian ini menggunakan metode padan pragmatik untuk mengidentifikasi unit bahasa berdasarkan respons mitra bicara terhadap tuturan. Analisis data akan diuraikan sesuai permasalahan berupa kata-kata atau kalimat. Penyajian data disusun sesuai dengan teori tindak ilokusi yang dijabarkan oleh Searle. Hasil penelitian menyimpulkan bahwa dalam film pendek "Sodara Seng Sedarah" karya Geraldy Laimera, terdapat empat jenis tindak tutur ilokusi yang muncul dalam percakapan antar tokoh, yaitu asertif, direktif, ekspresif, dan komisif. (1) jenis ilokusi asertif melibatkan tuturan menginformasikan dan menyarankan. (2) jenis ilokusi direktif mencakup tuturan memohon, menasehati, dan memerintah. (3) jenis ilokusi ekspresif melibatkan tuturan permintaan maaf dan ucapan terima kasih. (4) jenis ilokusi komisif berupa tuturan ancaman. Tidak ditemukan tindak tutur ilokusi deklaratif dalam dialog film pendek “Sodara Seng Sedara”.
Keberanian ekstrim tokoh utama dalam film Kirikou et La Sorciere karya Michel Ocelot
Authors: Sulistiawan Pragusti Listia Arrimara , Subur Ismail  , Rosyani Dewi Evi 
Published: April 2024

Penelitian ini bertujuan untuk memperoleh pemahaman terkait keberanian ekstrim tokoh utama Kirikou dalam film Kirikou et La Sorciere karya Michel Ocelot, dengan menggunakan tiga ciri keberanian ekstrim menurut Souchon, Gardette et Woronoff (2000) dan Franco & Zimbardo (2011) yakni Ekstrimisme, Keteguhan, dan Memahami Aksinya. Metode penelitian ini adalah analisis isi dengan menggunakan pendekatan kualitatif yang diikuti dengan pemaparan deskriptif. Tahap pertama analisis menurut Mayring (2021) ialah: satu (1) membuat dan merumuskan pertanyaan penelitian yang bisa disebut rumusan masalah, dua (2) mengkategorikan atau melakukan pemisahaan setiap kategori dari hasil analisis pesan, tiga (3) memperoleh data-data dan dimasukan kedalam kategori-kategori yang telah ditentukan sebelumnya kemudian mengklasifikasikannya, empat (4) melakukan revisi kategori dengan disertai pengecekan reabilitas atau keabsahan formatif yang pengecekannya dilakukan di tiap-tiap kategori, lima (5) pengecekan pada keseluruhan kategori dilakukan atau bisa disebut pengecekan sumatif dan enam (6) menginterpertasi hasil atau menarik kesimpulan dari tiap-tiap kategori. Hasil penelitian ini menunjukkan bahwa terdapat dua puluh (20) data yang mengindikasikan ciri-ciri keberanian ekstrim. Secara rinci, dari dua puluh (20) kutipan tersebut diperoleh sembilan (9) kutipan ciri Keteguhan, tujuh (7) kutipan ciri Ekstrimisme dan empat (4) kutipan ciri Memahami Aksinya.
Geology, Oil and Gas Potential, Hydrocarbon Resources and Directions of Geological Exploration in the Northeastern Continental Margin of the Siberian Platform (Anabar–Khatanga and Lena–Anabar OGA)
Authors: Kontorovich V.A. , Kontorovich A.E. , Burshtein L.M. , Kalinin A.Yu. , Kalinina L.M. , Kostyreva E.A. , Melnik D.S. , Moiseev S.A. , Parfenova T.M. , Safronov P.I. , Solovev M.V. , Fomin A.N. , Fursenko E.A. 
Published: April 2024

Abstract
—The work is devoted to the analysis of the geological structure and assessment of the oil and gas potential of the Anabar–Khatanga and Lena–Anabar oil and gas areas (OGA) of the Lena–Tunguska oil and gas province, which are located on the continental margin of the Siberian Platform, on the coast of the Laptev Sea. Administratively, the study area includes the northeastern regions of the Krasnoyarsk Territory, the northwest of the Republic of Sakha (Yakutia), the offshore of the Khatanga Bay and the southern, transit part of the Laptev Sea (Khatanga–Lena interfluve). Based on integrated interpretation of geological and geophysical materials, we present regional-zonal models of the geology of the upper Proterozoic–Phanerozoic deposits of the Arctic regions of the Siberian Platform, sets of seismogeological sections, structural and parametric maps, results of structural-tectonic analysis, potential estimates of oil-producing formations; analysis of reservoir properties and types of oil and gas promising objects, and a quantitative assessment of hydrocarbon resources. The study area is of interest in terms of oil and gas potential. In this region, the Central Olgin field was discovered, numerous bitumen, oil and gas shows were noted. A series of oil-producing formations enriched in organic matter occurs in the sedimentary cover, and in the sections of all sedimentary complexes, high-capacity reservoirs are distinguished. There are prerequisites for the formation of both anticlinal and complex oil and gas promising objects. The prospects for the oil and gas potential of the Anabar–Khatanga OGA are mainly associated with Permian terrigenous deposits and Cambrian–Devonian carbonates. In the Lena–Anabar OGA, all upper Proterozoic–Paleozoic sedimentary complexes from the Riphean to the Permian level are of interest in terms of oil and gas potential.
Larvicidal and Insecticidal Activity of Herbal Formulation against Tribolium castaneum (Coleoptera: Tenebrionidae) and Maconellicoccus hirsutus (Hemiptera: Pseudococcidae)
Authors: Patil Sujata N , Hundiwale Jogendra C. , Vadnere Gautam P 
Published: April 2024

Abstract

The Mealybug,Maconellicoccus hirsutus, is commonly known as pink hibiscus mealybug which is a serious insect pest of many plants in tropical and subtropical regions.Tribolium castaneumis the major pest of wheat and rice. Also, a serious pest of cereal grains and their products. The efficacy of herbal extract from 13 medicinal plants (namely.,Gloriosa superba, Vitex negundo, Ipomoea carnea, Annona squamosa, Calotropis gigantea, Pongamia pinnata, Jatropha curcas, Tinospora cordifolia, Terminalia billirica, Datura stramonium, Azadirachta indica, Capsicum annum, Allium sativum)was checked againstMaconellicoccus hirsutusandTribolium castaneumin vivounder the temperature of 25-270C and relative humidity of 60-70%. The herbal extracts at 2%, 4%, 6%, 8%, and 10% concentrations were applied to check their insecticidal and larvicidal activity. The result of this experiment, reveals that the herbal extract may be effective againstMaconellicoccus hirsitusandTribolium castaneumand we can use it as an alternative to chemical pesticides.
A Retrospective Study of Children with Frequently Relapsing Nephrotic Syndrome Using Levothyroxine Added to Steroids During Relapses
Authors: Taheri Amin , Saberinejad Javad , Dormanesh Banafshe , Moghtaderi Mastaneh 
Published: April 2024

Abstract

Introduction: Levothyroxine treatment for thyroid hormone disorders, alongside standard Nephrotic Syndrome therapy during nephrotic syndrom relapses, might reduce relapse duration and corticosteroid consumption, despite debates over its necessity. This study explores levothyroxine's potential benefits in patients with frequent relapses and thyroid hormone disorders.
Materials and Methods: This retrospective study investigated children with frequently relapsing nephrotic syndrome (FRNS) at ages 1–12 with elevated TSH levels, which have been treated according to IPNA guidelines for FRNS. Patients treated with levothyroxine were considered the levothyroxine group. This study compared outcomes between patients treated with levothyroxine and a control group, examining TSH levels, remission periods, and prognosis.
Results: The mean dose of prednisolone and time to remission were significantly lower in the levothyroxine group compared to the controls (0.51 ± 0.40 versus 0.55 ± 0.50 mg/kg/day; p=0.03 and 6.0 ± 2.17 versus 9.7 ± 2.87 days; p<0.001, respectively). The relapse rate was 1.17 versus 1.53 with an incidence rate ratio of 0.76 (95% CL: 0.46–1.22; p = 0.24). There was a significant difference in the levels of TSH, free thyroxine (FT4), albumin, and creatinine. This significant difference disappeared during remission for albumin but remained significant for TSH and creatinine.
Conclusion: This study suggests that administering levothyroxine during relapses can reduce the time to remission and, consequently, the cumulative dose of prednisolone. However, it does not significantly affect the prevention of future relapses, treatment failure, or steroid toxicity.