bluuebunny/crossref_metadata_2025_split huggingface dataset:
A REVIEW : MODIFIKASI DOPING LiFePO4 SEBAGAI KATODA BATERAI Li-ION
Authors: Hamida Hana Nur , MUNASIR Munasir 
Published: October 2023

Dalam situasi krisis energi dan perkembangan pesat peralatan elektronik saat ini, baterai lithium ion telah menjadi fokus penelitian sebagai perangkat penyimpanan energi yang memiliki kepadatan energi tinggi, aman, dan terjangkau. Di antara berbagai jenis baterai lithium ion, LiFePO4 telah menarik perhatian dalam bidang baterai dengan kapasitas besar. Keunggulan LiFePO4 antara lain stabilitas yang baik, biaya yang rendah, serta ramah lingkungan. Namun, karena koefisien difusi ion lithium dan konduktivitasnya yang rendah, hal tersebut membatasi kinerja baterai lithium ion. Dalam artikel ini di review pengaruh dari doping logam dan non logam terhadap performa elektrokimia LiFePO4. Setiap ion yang di doping memiliki efek yang berbeda pada bahan katoda LiFePO4. Dari banyak penelitian menjelaskan bahwa jumlah doping yang tepat dapat meningkatkan kinerja bahan katoda LiFePO4 hingga batas tertentu. Setiap ion doping memiliki keunggulan masing-masing sehingga dapat membuktikan bahwa modifikasi doping telah berhasil membantu menstabilkan struktur kristal LiFePO4, dan meningkatkan stabilitas siklusnya serta meningkatkan laju difusi ion lithium dan meningkatkan konduktivitas antarpartikel dalam LiFePO4.
Kata Kunci: LiFePO4, Doping, Baterai Lithium Ion
Abstract
In the current situation of energy crisis and rapid development of electronic equipment, lithium-ion batteries have become the focus of research as energy storage devices that have high energy density, are safe, and affordable. Among the various types of lithium-ion batteries, LiFePO4 has attracted attention in the field of large capacity batteries. The advantages of LiFePO4 include good stability, low cost, and environmental friendliness. However, due to its low lithium-ion diffusion coefficient and conductivity, it limits the performance of lithium-ion batteries. This article reviews the effect of metal and non-metal doping on the electrochemical performance of LiFePO4. Each doped ion has a different effect on the LiFePO4 cathode material. Many studies explain that the right amount of doping can improve the performance of LiFePO4 cathode material to a certain extent. Each doping ion has its own advantages so that it can prove that doping modification has successfully helped stabilize the crystal structure of LiFePO4 and improve its cycle stability as well as increase the diffusion rate of lithium ions and increase the interparticle conductivity in LiFePO4.
Keywords: LiFePO4, Doping, Lithium-Ion Battery
PEMODELAN REGRESI NONPARAMETRIK SPLINE DAN APLIKASINYA PADA INDEKS KEBAHAGIAAN PROVINSI DI INDONESIA
Authors: Kondo Lembang Ferry , Ilwaru Venn Yan Ishak , Lewaherilla Norisca 
Published: October 2023

Indeks Kebahagiaan saat ini menjadi salah satu indikator kesejahteraan yang menjadi fokus utama pemangku kepentingan. Di Indonesia, Indeks Kebahagiaan hanya terdapat sampai pada level provinsi dan memiliki perbedaan. Perbedaan Indeks Kebahagiaan setiap Provinsi dipengaruhi oleh banyak faktor sehingga tujuan dari penelitian ini ingin dianalisis faktor-faktor yang mempengaruhi Indeks Kebahagiaan Provinsi di Indonesia. Hasil penelitian menunjukkan model Regresi Nonparametrik Spline terbaik Indeks Kebahagiaan Provinsi di Indonesia yaitu model dengan kombinasi titik knot 2,1,3,2,3 yang memiliki nilai Generalized Cross Validation (GCV) minimum sebesar 2,38 dengan empat variabel prediktor yang berpengaruh signifikan antara lain Angka Melek Huruf, Tingkat Pengangguran Terbuka, Perilaku Hidup Bersih dan Sehat, dan Persentase Penduduk Miskin.
ANALISIS KESTABILAN MODEL MANGSA PEMANGSA DENGAN MAKANAN TAMBAHAN PADA PEMANGSA MENGGUNAKAN FUNGSI RESPON HOLLING TIPE IV
Authors: Mufidah Alfiatul , Savitri Dian 
Published: October 2023

Interaksi antar dua populasi dapat mengakibatkan perubahan pada dinamika pertumbuhan kedua populasi. Pada populasi mangsa yang hidup secara berkelompok mengakibatkan populasi pemangsa kesulitan dalam mencari sumber makanan. Hal ini berakibat penurunan populasi pemangsa dan terjadi ketidakseimbangan kedua populasi. Jalan alternatif yang dapat dilakukan saat terjadi ketidakseimbangan populasi yaitu memberikan makanan tambahan untuk pemangsa. Dalam penelitian ini mengkonstruksi model mangsa pemangsa dua populasi dengan fungsi respon Holling tipe IV dan mempertimbangkan makanan tambahan pada pemangsa. Kajian pertama berupa studi literatur, kemudian mengkonstruksi model mangsa pemangsa, dilanjutkan analisis dengan menentukan titik kesetimbangan, dan kestabilan lokal di sekitar titik kesetimbangan. Kesesuaian hasil analisis ditampilkan dalam simulasi berupa potret fase. Hasil analisis diperoleh tiga titik kesetimbangan yaitu kepunahan mangsa pemangsa (E_1), kepunahan pemangsa (E_2) dan mangsa pemangsa saling berdampingan (E_3). Pada titik kesetimbangan E_1 bersifat tidak stabil, sedangkan pada E_2 dan E_3 bersifat stabil asimtotis dengan syarat tertentu. Hasil simulasi numerik menunjukkan adanya kestabilan ganda (bistabil) yakni pada titik kesetimbangan E_2 dan E_3 ketika parameter makanan tambahan A=1.3. Ketika A=1.2 maka hanya titik kepunahan pemangsa yang stabil (E_2). Kedua populasi saling berdampingan ditunjukkan dalam potret fase saat A=1.9. Adanya makanan tambahan, yaitu parameter A dapat mempengaruhi dinamika pertumbuhan kedua populasi tersebut.
Kata Kunci: Makanan tambahan, Holling tipe IV, kestabilan, bistabil, model mangsa pemangsa.
Evaluation of the Implementation of Contract Change Order as A Solution to the Problem of Contract Scope Changes
Authors: Nusantara Bintang Putra , Sutardi Sutardi 
Published: October 2023

Construction industry activities are increasing. Construction industry players need to be prepared to face the possibility of changes of design planed that are not in accordance with field conditions. The purpose of this research is to identify, analyze the causes and impacts of Contract Change Orders (CCO) at the pre-construction, construction implementation, and post-construction stages with case study is Proyek Simpang Susun Balaraja Timur at Tol Jakarta – Merak, Kabupaten Tangerang. The research method used is descriptive and qualitative methods by conducting Earned Value Analysis and Fishbone Analysis to identify the causal factors and impacts of CCO so that efforts can be made to mitigate the performance of the construction contract from the aspect of quality, cost, and time. The results of the analysis show 3 factors causing CCO namely consultant factors, such as lack of planning preparation and non-compliance with field conditions, project owner factors, and contractor factors. The results of Earned Value Analysis with Estimate at Completion (EAC) calculations can be used to identify the need for additional contract value and additional execution time. On initial contract identification: Cost Performance Index (CPI) is 0.77 (insufficient costs with cost overrun – Rp. 52.502,111,631.83) and Schedule Performance Index (SPI) 1.21, means that Addendum 1 needs to be done with the results: CPI is 1.17 (the costs used are sufficient from the available fees), EAC is Rp. 189,848,751,106.02 with changes in the contract value is Rp. 222,017,999,900.65, SPI is 1.21 from the initial contract value Rp. 174,437,684,167.96
Effect of Micro Lime on The Ambient Cured Sugarcane Bagasse Ash-Based Geopolymer Concrete
Authors: Kamau Keithy , Omondi Benard , Oyaro Janet 
Published: October 2023

Geopolymer concrete has been the ideal replacement for Ordinary Portland cement concrete in producing green concrete. The binder in geopolymer concrete is a cementitious paste made from amorphous Aluminosilicate and activated by an Alkaline solution. The geopolymerization process is initiated at elevated temperatures. Thus, the curing requires elevated temperatures. This curing method limits the application of geopolymer concrete in the construction industry. In a geopolymer mix, the presence of Calcium ions allows the formation of Calcium Aluminate Silicate and Calcium Silicate Hydrate gels, allowing ambient temperature curing. Therefore, this study investigates the effect of micro lime on the Sugarcane Bagasse Ash-based geopolymer concrete. The micro lime was added to the geopolymer concrete in 1, 3, 5 and 7% by the Sugarcane Bagasse Ash weight. A mix design was based on a Densified Mix Design Algorithm. The tests carried out included compressive strength and water absorption. Ambient curing of the SCBA-based geopolymer concrete was achieved with 1% of the micro lime. The compressive strength increased with the increase of the micro lime, 10N/mm2 at 1%, to 18.25N/mm2 at 7% micro lime. The ambient temperature-cured geopolymer concrete at 3% micro lime had the lowest water absorption rate.
Comparison of Tearing strength and Dimensional Stability of Alginate Impression Material Mixed with Water and Chlorhexidine
Authors: Ameen Ahmed Saleh Hamad , Kakai Ribaz Tahsin Hayas , Tawfiq Hozan Farid 
Published: October 2023

Background:
An irreversible hydrocolloid impression material combined with two different doses of chlorhexidine solution is tested for dimensional change and tearing strength. The aim of this study is to evaluate the impact of adding chlorhexidine with 2 different available concentrations on alginate impression material.
Materials and Methods:
According to the manufacturer's instructions, the irreversible hydrocolloid specimens is made and divided into 3groups (Group 1 is mixed with tap water as a control group, Group 2 is mixed with 0.12 chlorhexidine, and Group 3 is mixed with 0.2 chlorhexidine). Testing is done on the change in dimensions and the tearing strength.
Results:
Lesser dimensional change is observed at group two and is non-significant, and the group three is significantly more dimensionally stable when compared with group one, tearing strength of group one and two is nearly the same while the group three is more resistant to tear and the difference is significant
Conclusion:
The dimensional stability and tearing resistance of chlorhexidine self-disinfecting irreversible hydrocolloid impression material may vary greatly.
Financial Leverage and its Impact on Share Value in Commercial banks "Citigroup Bank as a Model for the Period 2000-2022"
Authors: Abd Eid Muayad M. 
Published: October 2023

Background: The financial leverage, which is called financing by indebtedness or financing by borrowing, which is done by borrowing or issuing indebtedness instruments such as bonds and other financial instruments, is complementary to financing by ownership, which consists of shareholders’ funds and the issuance of shares, so that the financial structure in companies consists of “ownership and indebtedness.”
Materials and Methods: The bank's financial leverage was measured through the use of a number of financial ratios, including total liabilities to total assets and total liabilities to total equity, and its impact on the value of the share was measured by using the SPSS program.
Conclusions: The results showed that there is a positive correlation between the financial leverage ratios and the value of the share. The value of the share was affected by the mortgage crisis of 2007-2008 AD, as it began to decline in 2007 AD from $359.60 to $29.79 in 2009 AD. From research and study, we find, in addition to the effect of financial leverage, the existence of More than one effect on the stock value.
Assessment some of Kidney Function Biomarkers in Iraqi Chronic Myeloid Leukemia
Authors: Obiad Ghania Haider , Abdullah Shaymaa Obaid 
Published: October 2023

Background: Kidney injury and consequences will definitely grow more common due to the rise in hematologic malignancies and innovative treatments that are extending patients' lives who have leukemia , so the study aims to evaluate some vital indicators of kidneys function , namely interleukin 18 (IL18) , Kidney Injury Molecules -1 (KIM) , urea, and creatinine in Iraqi chronic myeloid leukemia patients.
Materials and Methods: In our available research, , The study was conducted in the Marjan Medical City Hospital in Babylon Governorate and the Medical City Hospital in Baghdad Governorate, where the ELISA method was used to measure the parameters for the study . The study included 60 patients with chronic myeloid leukemia (17 males and 43 females). And 30 healthy participants who do not suffer from any disease.
Results: The results revealed that that there were extremely significant differences between the control group and patients in the samples examined for the kidney function test (urea, creatinine, and IL18). While there is a non-significant difference between the control group and patients in terms of kim-1 at a p-value of ≤ 0.05. The study's findings, however, also revealed a non-significant association between age and the levels of (urea, creatinine, IL18, and kim-1), as well as between BMI and the levels of (urea, creatinine, IL18, and kim-1).
Conclusion: As a conclusion that kidney damage is possible in leukemia patients, especially when chemotherapy is taken frequently and long-term.
The Linear Optical Properties of Rhodamin110 Organic Dye Doped with Metal Nanoparticles
Authors: Mahmood Rusul K. , Abbas Talb M. 
Published: October 2023

Background:
Laser dyes are unsaturated hydrocarbon compounds that have the advantage of having double or triple bonds coupled with carbon atom chains. This system benefits from light absorption in the visible range (200–700 nm) and the transmission spectrum of absorption in the visible range
Materials and Methods:
This research has focused on the effect of Adding ethanol solution to rhodamine110 dye with different concentrations, the linear properties (permeability, absorbance) of Rhodamine110 dye were studied as it was dissolved in ethanol to prepare solutions with concentrations (0. 01, 0.03, 0.05) and at room temperature
Results:
The absorbance A of Rhodamine110 dye with ethanol was calculated for the above concentrations, respectively, as well as and the transmittance T was calculated for the above concentrations, respectively, to obtain curves and rhodamine110 dyes were mixed with nanomaterials to improve the properties of the dyes
Conclusion:
In this study, According to Beer-Lambert's rule, increasing the dye concentration will increase absorbance, which will raise the linear optical coefficients (refractive index and coefficient of absorption) for all produced samples. The probability of electronic transitions will definitely be affected by the type of solvent., and this has an impact on linear optical characteristics, particularly the positions and width of the absorption spectra. And the addition of nanomaterials added better improvements to the dye. The results showed that the highest linear properties appeared when the silver nanomaterials with rhodamine110 dye
Analysis of Self Regulated Learner of Acceleration Class at Secondary School in Natural Science Subjects Based on Gender
Authors: Rahmaningtyas Novia Dwi , Sartika Septi Budi , Maghfiroh Nuril 
Published: October 2023

The purpose of this research is to describe the self-regulated learner (SRL) of male and female accelerated students. The research method used is qualitative phenomenology research conducted at SMP Negeri 1 Sidoarjo. The research focused on one male student and one female student of accelerated class. Data collection techniques used in the research included observation, questionnaire and interview techniques. From the data obtained, data analysis was carried out using three stages including data reduction, data presentation and conclusion drawing. The results of the research obtained SRL of male and female students lead to academic and non-academic fields, and have unequal abilities in science subjects. Male SRL indicators that are not achieved are organization and seeking help while female SRL indicators that are not achieved are anxiety tests. The factor that influences the non-achievement of SRL indicators is that students are less able to manage organization, seek help and test anxiety on themselves. Future research is expected to develop learning tools to train students' SRL.
THE CULTURAL IDENTITY OF NUSANTARA IN A MOVIE "RAYA AND THE LAST DRAGON “
Authors: Nirwana Nirwana 
Published: October 2023

<span lang="IN">Raya and the Last Dragon is an animated movie with an adventure theme from Walt Disney Studio which was released </span><span>in 2021</span><span lang="IN">. This movie tells the adventures of a character named Raya who lives onhis birthland named Kumandra. Raya begins her journey to find the last dragon named Sisu to help her defeat an enemy from darkness named Druun and unite the Kumandra again. In this movie, </span><span>you</span><span><span lang="IN">can see the design aspects of local wisdom, background,</span></span><span lang="IN">culture, life values and tradition that are still strong </span><span>and</span><span><span lang="IN">are very authentic and related to the daily life of people in Southeast Asia and one of them contains aspects of Indonesian culture. Therefore, this movie ha</span></span><span>s </span><span lang="IN">norms values that reflect the identity of the Indonesian nation in the Southeast Asia region. This study aims to find out how the role of Southeast Asian culture is formed and influences the </span><span>people </span><span><span lang="IN">in assessing Southeast Asian culture, especially culture from Indonesia. The research method </span></span><span>was</span><span lang="IN"> grounded theory approach and the data</span><span>is taken from the scene of the movie</span><span lang="IN">. </span><span>T</span><span lang="IN">he research results show that there are cultural elements that are shown through the values in the Movie Raya and The Last Dragon in the form of character design, asset design and background. These assets are able to build the </span><span>people’s </span><span><span lang="IN">perception of the culture of Southeast Asia and Indonesia.</span></span>
FUNCTIONS OF SPEECH ACTS IN AUSTRALIAN MINISTER OF FOREIGN AFFAIRS SPEECH AT UNGA
Authors: Putri Maria Dwilla Sekar , Sunarto Emanuel 
Published: October 2023

<p>Sometimes, politicians may use speech acts in their political speeches that the audience may interpret in a variety of ways. Speech acts are used when a speaker expresses words or phrases to achieve specified objectives and it relates to pragmatics in some way. This research aims to find the most dominant and the functions of illocutionary acts found in Australian Minister of Foreign Affairs speech at UNGA. The theory used was from Searle and it was found that there were four illocutionary acts in the speech, namely representative, commissive, directive, and expressive. It was found that representative was the most dominant type of act in the speech. It occurred 54 times to inform and state the current condition and issues of the world. The second was commissive with 23 occurences, followed by directive with 14 occurences, and expressive with 6 occurences. While declarative was not found because there was not any declaration that could change the current condition.<strong></strong></p><p> </p>
The first results of the study of the activity paradigm of the Russian linguistic personality based on RAS and SIBAS
Authors:   Institute of Philology (Siberian Branch) of the Russian Academy of Sciences, Tkach Anastasia I. 
Published: October 2023

The author introduces the term “activity paradigm of the Russian linguistic personality” and shares some results of the study carried out on the dominant verbs of the associative networks modeled on Russian associative dictionary (RAS) and Russian regional associative database (Siberia and the Far East) (SIBAS): ‘to live’, ‘to do’, ‘to sleep’, ‘to think’, ‘to go’, ‘to speak’, ‘to have done’. The study has been aimed at defining the changes in the socio-communicative settings of the Russian linguistic personality related to activity. The author provides the theoretical prerequisites to the study of the activity paradigm and proves the relevance of the term “hypernet” which has been borrowed from K.V. Anokhin’s hypernet brain theory to define the term “activity paradigm”. The article describes the methods applied at each of the two stages of the study which are statistical analysis and psychoglossing. Those reactions to the stimuli in question which are related to the subjects of activity, individualism, finance, and evaluations are cited. The author points out that analysis of verbs proves to be insufficient for understanding of the activity-related socio-communicative settings of the Russian linguistic personality. Thus, the article provides a supplementary analysis of the nouns ‘money’, ‘work’, ‘labor’, and ‘career’. Further research being necessary, the author observes an increase in the Russian linguistic personality’s egocentricity and some traces of monetarization of the Russian linguistic consciousness.
Heuristic potential of psycholinguistic dictionaries of different types
Authors:   Omsk Dostoevsky State University, Butakova Larisa O. , Guts Elena N. ,   Omsk Dostoevsky State University
Published: October 2023

The article considers the heuristic possibilities of using psycholinguistic dictionaries (associative and associative-semantic) for modeling fragments of the linguistic consciousness of certain groups (sociocultural communities) of native speakers, and builds a “three-dimensional” model of the subjective semantics of individual stimuli in a comparative slice and trend modes. The authors characterize the main associative dictionaries created on the basis of the results of all-Russian and regional experiments, show the possibilities of “large” and “small” psycholinguistic dictionaries in the aspect of modern scientific research. The implementation of the heuristic potential of regional dictionaries is shown on the example of comparative slice and trend descriptions of the semantics of the stimulus “life”. Associative fields from the “Associative Dictionary of a Teenager” (composed in 2002), the new associative base of this dictionary made up in 2021, associative and semantic experiments conducted by the authors in Omsk in 2010 – 2012 and in 2022 are used as material for such descriptions. To analyze the composition of the fields, it was important to analyze the stable and mobile zones of the subjective semantics of the stimulus, the verbal expression of the semantic areas associated with the stimulus, the behavior of frequency reactions of the respondents of different age and social groups, the prevalence of nonstandard (slang, colloquial) and foreign language reactions.