bluuebunny/crossref_metadata_2025_split huggingface dataset:
KORELASI OPTIMUM MOISTURE CONTENT DENGAN BATAS PLASTIS PADA TANAH TIMBUNAN
Authors: Anggraini Muthia , Haris Virgo Trisep , Saleh Alfian 
Published: August 2024

Kekuatan tanah dasar berkaitan dengan daya dukung tanah, bergantung pada kandungan air yang ada dalam tanah, jenis tanah, dan keadaan asal dari tanah. Pemadatan adalah salah satu faktor paling pending dalam menambah kekuatan tanah. Karakteristik pemadatan tanah diperoleh dari pengujian di laboratorium untuk mendapatkan nilai kadar air optimum (OMC) dan berat kering maksimum (ɤdmaks). Meskipun penetuan parameter pengujian pemadatan laboratorium sederhana, pada saat di lapangan pengujian dalam jumlah besar untuk tanah timbunan sulit untuk mendapatkan jenis tanah yang dibutuhkan dalam satu area. Sehingga perlu dicari korelasi untuk memahami karakteristik tersebut. Data – data yang digunakan dari hasil pengujian di laboratorium menggunakan sampel tanah Kampar, Duri, dan Kulim. Tujuan penelitian adalah untuk melihat korelasi anatar optimum moisture content(OMC) dengan batas plastis pada proses pemadatan tanah timbunan. Metode yang digunakan adalah pengujian di laboratorium yaitu pengujian pemadatan laboraorium, analisa butiran, dan atterberg. Hasil yang diperoleh korelasi OMC dan nilai batas plastis (PL) korelasi yang diperoleh adalah sangat kuat 0.80 – 1.00, karena nilai R = 0.946. Kesimpulannya korelasi antara optimum moisture content dengan batas plastis (PL) pada tanah berbutir halus tanah timbunan pada Quarry Kampar, Kulim, dan Duri adalah sangat kuat. Saran perlu penelitian lebih lanjut dengan jumlah sampel yang lebih banyak lagi.
Analisis Kekuatan Kolom Komposit Terbungkus Beton Berpenampang Bundar terhadap Kapasitas Tahanan Aksial dan Momen dengan Metode Beda Hingga
Authors: Aidil Rizki , Islam Mukhlis , Wahyuni Ade Sri , Gunawan Agustin , Afrizal Yuzuar 
Published: August 2024

Composite column structures can provide high strength from the combination of two or more materials with different material properties which then provide better combined properties. This research was conducted by analysing the composite column structure with finite difference method and comparing the results with CSiCol application. The results of the analysis of the Pn and Mn interaction diagram of the finite difference method composite column when compared to the CSiCol application composite column have a maximum percentage difference for the maximum Pn value of 19.17%, the maximum Mn value of 2.90%. The difference in the Pn and Mn values of the composite column can be corrected with a regression equation using a linear correction factor and a Polinomial correction factor, with a maximum Pn percentage difference value of 8.93% for the linear correction factor and 6.84% for the Polinomial correction factor value. Therefore, the finite difference method can be used to analyse composite columns with relatively good accuracy provided that correction factors are used.
PENENTUAN NILAI CBR DAN NILAI PENYUSUTAN TANAH TIMBUNAN (JALAN RUAS TAIS-MARAS KABUPATEN BENGKULU SELATAN)
Authors: Zen Muhamad Zen , Hellyward James 
Published: August 2024

In civil engineering, soil plays a crucial role as it supports the strength of the construction above it.. Thus, research was conducted on native soil in the Tais-Maras region of South Bengkulu Regency. Testing was carried out to determine the properties of the native soil intended for construction activities, including water content according to SNI 03-1965:2008, specific gravity according to SNI 03-1964:2008, plastic limit according to SNI 03-1966:2008, liquid limit according to SNI 03-1967:2008, hydrometer analysis according to SNI 03-3423:2008, activity value, CBR according to SNI 03-1744-1989, and shrinkage limit research according to SNI 03-1996-1990. Based on research and data calculation from disturbed soil samples in the Tais-Maras region of South Bengkulu Regency, the soil properties were determined as follows: water content (W) 98.52%, specific gravity (Gs) 2.415, liquid limit (LL) 45%, plastic limit (PL) 33.85%, Plasticity Index (PI) 11.2%, Optimum Moisture Content (OMC) 34.9%, dry density 1.120 Kg/Cm3, and a CBR design value of 3.9%. The calculated shrinkage limit value was 38%, and the soil activity value was 2.6. It can be concluded that this soil belongs to the OL category, with 'O' representing organic silt due to the hydrometer analysis showing particle sizes ranging from 0.002 mm to 0.0074 mm with high plasticity and moisture content, thus indicating that it is unsuitable for bearing construction loads.
ANALISIS KEPUASAN MAHASISWA-MAHASISWI BEASISWA ATLET FUTSAL UNIVERSITAS KRISTEN INDONESIA TERHADAP PELAYANAN LAPANGAN FUTSAL PERSADA HALIM JAKARTA TIMUR
Authors: Ahmad Fauzi ejiahmad321@gmail.com  , Frangky Yosua Sitorus  , Fenny B.N.L. Tobing  
Published: August 2024

These studies aim to determining level of consumer satisfactions based on performances and interests at the Persada Halim Futsal Field in East Jakarta and to determine what attributes cause customer satisfaction at the Persada Halim Futsal Field in East Jakarta. Data using is source from primarily data obtain from research questionnaires distributed to 86 respondents while secondaries data is obtaining from book or others data source relate to research. Research methodology using by author is descriptive qualitative. For the data analysis technique, the writer uses Importance Performance Analysis, Likert Score, Anova table and Cartesian chart to prove or find out statistical tests. Through this research, it may be known both performances variable and the importance of the level of accuracy of the data through the ANOVA table, it is obtained that n performance = 0.965 and n importance = 0.968. It may be concluding that data from the questionnaire distributed by researcher to the respondents was declared accurate. From the results of the attitude value, the maximum number of attitudes is 287,59 and the minimum number of attitudes is 68.62. And the percentage of attitude value is 88,48% because the percentage of attitude value is more than 80%, so level of customer satisfactions with services of the East Jakarta Persada Halim futsal field. Conclusion is may be drawn base on result of the research above is that the attributes that become the main priority are the availability of air conditioning in every Persada Halim field, several CCTVs are installed at Persada Halim, Persada Halim employees provide special services if there are service problems, Persada Halim employees help for injured consumers. while playing.
Keywords: Performance, Satisfaction, Service
ANALISA PENGARUH CURRENT RATIO, DEBT TO EQUITY, PRICE EARNING RATIO, NET PROFIT MARGIN, DAN TOTAL ASSET TURNOVER TERHADAP RETURN SAHAM PERUSAHAAN MANUFAKTUR YANG TERDAFTAR DIBURSA EFEK INDONESIA PERIODE TAHUN 2015-2021
Authors: Levina Nathania  , Jonny Siagian  
Published: August 2024

Analisa Pengaruh Current Ratio, Debt to Equity, Price Earning Ratio, Net Profit Margin dan Total Asset Turnover Terhadap Return Saham Perusahaan Manufaktur yang Terdaftar di Bursa Efek Tahun 2015-2021
This research is to find whether CR, DER, PER, NPM and TATO have an effect on stock returns. Data were obtained using a purposive sampling method with criteria (1) Manufacturing companies in the industrial and chemical sectors listed on the Indonesia Stock Exchanged and consistent during the 2015-2021 study period (2) Number of manufacturing companies in the chemical, cement and ceramics industry sector listed on the Indonesia Stock Exchange years 2015-2021 (3). The results of the Current Ratio test have a significant effect on stock returns as indicated by the value of the test results t sign 0.010, the results is smaller than 0,05 (.010 < 0.05) so that means there is a positive and significant effect of current ratio on stocks returns. The results of the Debt to Equity Ratio test did not have a significant effect on returns marked the value of the test results t sign .0.00 which is smaller than (0.000 < 0.05), so that means there is negative effect and significant Debt to Equity on stocks returns. The results of the Price Earning Ratio do not have significant effects on stock returns marked by the value of the test results t sign 807 which is greater than 0.05 (.807 > 0.05), so that means there is not negative and significant effects on stock returns. The results of Net Profit Margin test have significant effects on stock returns marked by the value of the t test sign 042 which is less than 0.5 (0.042 < 0.05) , so it means that there is a positive and significant influence on stock returns. The results of the Total Asset Turnover test have a significant effect on stock returns marked by the value of the test results t sign .002 (0.002 < 0.05), so that means there is a positive and significant effect on stock returns.
Keywords: Current ratio (CR), Debt to Equity ratio (DER), Price Earning Ratio (PER), Net Profit Margin (NPM), Total Asset Turnover (TATO).
STRATEGI PENYEBARAN INFORMASI PERSYARATAN PENERBITAN DOKUMEN KEPENDUDUKAN PADA DINAS KEPENDUDUKAN DAN PENCATATAN SIPIL KABUPATEN ENREKANG
Authors: Taufik Iip Prasiswanto , Akhmad Fatahuddin , Hidayah Endang Sri 
Published: August 2024

Tujuan penelitian ini adalah analisis strategi penyebaran informasi tentang syarat penerbitan dokumen kependudukan di Disdukcapil Kabupaten Enrekang. Penelitian ini mmenguunakan metode penelitian Kualitatif dengan jenis peneletian studi kasus. Teknik pengumpulan data melalui wawancara, observasi non partisipan, dan dokumentasi. Penentuan informan dilakukan secara purposive. Hasil penelitian menunjukan strategi penyebaran informasi syarat penerbitan dokumen kependudukan yang dilakukan oleh Dinas Kependudukan dan Pencatatan Sipil Kabupaten Enrekang melalui tahap penelitian komunikasi, perencanaan komunikasi, pelaksanaan, dan evaluasi cukup baik, namun kurang optimal karena penyebaran informasinya belum menggunakan internet. Kelemahan dalam penentuan komunikan yaitu masyarakat tidak menjadi komunikan dalam kegiatan sosialisasi, jumlah pelaksanaan sosialisasi yang terbatas (3 kali dalam setahun).

Kata Kunci : Strategi Komunikasi; Penyebaran informasi; Persyaratan Dokumen Kependudukan.
Bioimpedance measurement: a non-invasive diagnosis of limb compartment syndrome
Authors: Novak Martin , Jecminek Vladimir , Pleva Leopold , Penhaker Marek , Schmidt Martin , Mimra Tomas , Kubicek Jan , Augustynek Martin 
Published: August 2024

IntroductionThe methods for diagnosing compartment syndrome non-invasively remain under debate. Bioimpedance measurements offer a promising avenue in clinical practice, detecting subtle changes in organ impedance due to volume shifts. This study explores bioimpedance measurement as a novel, painless method for diagnosing compartment syndrome, potentially enabling continuous monitoring.ObjectiveThis work aims to develop a prototype device for non-invasive diagnosis of compartment syndrome based on bioimpedance changes and assess initial results through in vitro experiments on inanimate biological material. We assume a change in the bioimpedance value after the application of physiological solution.Materials and MethodsBetween 2018 and 2022, a prototype device for diagnosing limb compartment syndrome was collaboratively developed with the Department of Cybernetics and Biomedical Engineering at the Technical University of Ostrava, Czech Republic. This device operates by comparing bioimpedance between two compartments, one of which is pathologically affected (experiencing compartment syndrome). The Bioimpedance Analyzer for Compartment Syndrome (BACS) has been utilized to conduct measurements on inanimate biological material in laboratory settings. Two samples of duck and chicken tissue, as well as piglets, were employed for these experiments. According to the size of sample was compartment syndrome simulated by injecting 20–120 mL saline into one limb (breast) while leaving the other as a control. Invasive intramuscular pressure measurements were conducted post-saline injection using a conventional device (Stryker). Changes in bioimpedance were evaluated following saline application.ResultsThe non-invasive bioimpedance measurement instrument has been developed. It meets the safety requirements of European standard EN 60601-1. Measurement of accuracy showed minimal deviation for both channels (1.08% for the left channel and 1.84% for the right channel) when measuring on resistors. Ten measurements were conducted using the BACS prototype - two on chicken legs, two on duck breasts, two on duck legs, and four on piglets. Compartment syndrome simulation was achieved for all 10 measurements (IMP variance 31–45 mmHg). Following saline application, a notable decrease in bioimpedance was observed in the compartment simulating compartment syndrome (decrease by 12–78 Ω).ConclusionNon-invasive methods could revolutionize limb compartment syndrome diagnosis, offering advantages such as non-invasiveness and continuous monitoring of compartment swelling.
Relationship between anterior segment biometry and primary angle-closure glaucoma in Hubei region: a retrospective case-control study
Authors: Wang Shan , Zhang Han , Yang Wanju , Zhang Ying , Qin Hui , Wang Man , Lei Xinlan , Yang Kuiliang , Zhang Hong , Xing Yiqiao 
Published: August 2024

ObjectiveTo investigate the pathogenesis of Primary Angle-Closure Glaucoma (PACG) and its relationship with the anatomical structure of the anterior segment by obtaining biometric parameters using the IOL-Master 700.MethodsA retrospective case–control study was conducted. Clinical data from 39 PACG patients and 40 normal controls treated at the Aier Eye Hospital affiliated with Wuhan University from January to December 2022 were collected. Anterior chamber depth (AC), white-to-white (WTW), lens thickness (LT), central corneal thickness (CCT), axial length (AL), corneal curvature (K1), corneal curvature (K2), and lens position (LP) were measured using the IOL-Master 700 to analyze the characteristics and differences in the anterior segment structure of both groups. Statistical methods included independent sample t-tests and logistic regression analysis.ResultsSignificant differences were found in the anterior segment biometric parameters between PACG patients and normal controls (p &lt; 0.05). Anterior chamber depth, white-to-white, lens thickness, central corneal thickness, axial length, and K2 were all related to the occurrence of PACG (p &lt; 0.05). The occurrence of PACG was negatively correlated with ACD, CCT, and AL (OR = 0.12–0.64, p &lt; 0.05), and positively correlated with LT.ConclusionCompared to the normal control group, PACG patients in the Hubei region have a smaller anterior segment space, narrower angles, thicker lens, thinner cornea, shorter axial length, flatter cornea, and more anteriorly positioned lens.
Tolerance to induced astigmatism of patients with trifocal or extended depth of focus intraocular lens implantation
Authors: Mu Jiancheng , Xiong Tianxu , Xu Feng , Guo Wanyue , Sun Chuhuan , Chen Hao , Fan Wei 
Published: August 2024

BackgroundResidual astigmatism is common after cataract surgery involving implantation of an intraocular lens, yet the tolerance of presbyopia-correcting intraocular lens to astigmatism of different magnitudes and axes is poorly understood. Here we compared visual acuity and quality in the presence of induced astigmatism after implantation of a trifocal or extended-depth-of-focus (EDOF) intraocular lens, the two widely used presbyopia-correcting intraocular lenses.MethodsAt least 3 months after implantation of a TFNT00 or ZXR00 intraocular lens, patients were analyzed by slit-lamp examination, non-contact tonometry, subjective refraction, iTrace aberrometry, and corneal topography. After correction of residual astigmatism, astigmatism of different magnitudes on different axes was induced using cylindrical lenses, and overall visual acuity was measured, while objective visual quality was measured using the Optical Quality Analysis System II. Subjects were also asked about subjective visual quality using the Visual Function-14 questionnaire.ResultsComparison of 18 individuals who received a trifocal lens and 19 who received an EDOF lens showed that objective visual quality was better in the EDOF group regardless of the magnitude or axis of the induced astigmatism. In both groups, astigmatism of at least −1.00 DC influenced distant vision more severely when the axis was 45° than 0° or 90°, meanwhile astigmatism of at least −1.50 DC influenced near and intermediate vision more severely when the axis was 45° than 0° or 90°.ConclusionTrifocal or EDOF intraocular lenses are less tolerant of oblique astigmatism than astigmatism with or against the rule. EDOF lenses may provide better objective visual quality than trifocal lenses in the presence of astigmatism, regardless of its magnitude or axis.
Detection and counting of Leishmania intracellular parasites in microscopy images
Authors: Portuondo-Mallet Lariza María de la Caridad , Mollineda-Diogo Niurka , Orozco-Morales Rubén , Lorenzo-Ginori Juan Valentín 
Published: August 2024

ProblemLeishmaniasis is a disease caused by protozoan parasites of the genus Leishmania and has a high prevalence and impact on global health. Currently, the available drugs for its treatment have drawbacks, such as high toxicity, resistance of the parasite, and high cost. Therefore, the search for new, more effective, and safe drugs is a priority. The effectiveness of an anti-leishmanial drug is analyzed through in vitro studies in which a technician manually counts the intracellular form of the parasite (amastigote) within macrophages, which is slow, laborious, and prone to errors.Objective(s)To develop a computational system that facilitates the detection and counting of amastigotes in microscopy images obtained from in vitro studies using image processing techniques.MethodologySegmentation of objects in the microscope image that might be Leishmania amastigotes was performed using the multilevel Otsu method on the saturation component of the hue, saturation, and intensity color model. In addition, morphological operations and the watershed transform combined with the weighted external distance transform were used to separate clustered objects. Then positive (amastigote) objects were detected (and consequently counted) using a classifier algorithm, the selection of which as well as the definition of the features to be used were also part of this research. MATLAB was used for the development of the system.Results and discussionThe results were evaluated in terms of sensitivity, precision, and the F-measure and suggested a favorable effectiveness of the proposed method.ConclusionsThis system can help researchers by allowing large volumes of images of amastigotes to be counted using an automatic image analysis technique.
Expression and characterization of recombinant antibodies against H7 subtype avian influenza virus and their diagnostic potential
Authors: Wang Siwen , Zhang Ying , Zhou Xu , Ma Yue , Shi Jianzhong , Jiang Yongping , Li Yanbing , Tian Guobin , Wang Xiurong 
Published: August 2024

IntroductionMonoclonal antibodies (mAbs) play a pivotal role in disease diagnosis as well as immunotherapy interventions. Traditional monoclonal antibody generation relies on animal immunization procedures predominantly involving mice; however, recent advances in in-vitro expression methodologies have enabled large-scale production suitable for both industrial applications as well as scientific investigations.MethodsIn this study, two mAbs against H7 subtype avian influenza viruses (AIV) were sequenced and analyzed, and the DNA sequences encoding heavy chain (HC) and light chain (LC) were obtained and cloned into pCHO-1.0 expression vector. Then, the HC and LC expression plasmids were transfected into CHO-S cells to establish stable cell lines expressing these mAbs using a two-phase selection scheme with different concentrations of methotrexate and puromycin. Recombinant antibodies were purified from the cell culture medium, and their potential applications were evaluated using hemagglutination inhibition (HI), western blotting (WB), confocal microscopy, and enzyme-linked immunosorbent assay (ELISA).ResultsThe results indicated that the obtained recombinant antibodies exhibited biological activity similar to that of the parent antibodies derived from ascites and could be used as a replacement for animal-derived mAbs. A kinetic analysis of the two antibodies to the AIV HA protein, conducted using surface plasmon resonance (SPR), showed concordance between the recombinant and parental antibodies.DiscussionThe data presented in this study suggest that the described antibody production protocol could avoid the use of experimental animals and better conform to animal welfare regulations, and provides a basis for further research and development of mAbs-based diagnostic products.
Integrating clinical and biochemical markers: a novel nomogram for predicting lacunes in cerebral small vessel disease
Authors: Li Ning , Hu Ya-Dong , Jiang Ye , Ling Li , Wang Chu-Han , Shao Jia-Min , Li Si-Bo , Di Wei-Ying 
Published: August 2024

BackgroundLacunes, a characteristic feature of cerebral small vessel disease (CSVD), are critical public health concerns, especially in the aging population. Traditional neuroimaging techniques often fall short in early lacune detection, prompting the need for more precise predictive models.MethodsIn this retrospective study, 587 patients from the Neurology Department of the Affiliated Hospital of Hebei University who underwent cranial MRI were assessed. A nomogram for predicting lacune incidence was developed using LASSO regression and binary logistic regression analysis for variable selection. The nomogram’s performance was quantitatively assessed using AUC-ROC, calibration plots, and decision curve analysis (DCA) in both training (n = 412) and testing (n = 175) cohorts.ResultsIndependent predictors identified included age, gender, history of stroke, carotid atherosclerosis, hypertension, creatinine, and homocysteine levels. The nomogram showed an AUC-ROC of 0.814 (95% CI: 0.791–0.870) for the training set and 0.805 (95% CI: 0.782–0.843) for the testing set. Calibration and DCA corroborated the model’s clinical value.ConclusionThis study introduces a clinically useful nomogram, derived from binary logistic regression, that significantly enhances the prediction of lacunes in patients undergoing brain MRI for various indications, potentially advancing early diagnosis and intervention. While promising, its retrospective design and single-center context are limitations that warrant further research, including multi-center validation.