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Journal articles on the topic 'Rf value'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Spasovski, Dejan, Todor Gruev, Nada Marina, et al. "The Diagnostic Value of the Second Generation Anti-CCP Test in Rheumatoid Arthritis." Journal of Medical Biochemistry 27, no. 1 (2008): 52–58. http://dx.doi.org/10.2478/v10011-007-0043-3.

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The Diagnostic Value of the Second Generation Anti-CCP Test in Rheumatoid ArthritisThe purpose of this research was to compare the diagnostic values of laboratory variables, to present quantitative evaluations of the diagnostic test with reference to sensitivity, and specificity, the predictive value of the positive and negative test and precision of the test for anti-cyclic citrullinated peptide (anti-CCP 2) antibodies, rheumatoid factor (RF), C-reactive protein (CRP), DAS 28 index, in early diagnosis of untreated rheumatoid arthritis (RA). Using the ELISA technology of DIA-STAT™Anti-CCP (Axi

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Mandalapu, Venkateswara Rao, and Venkaiah Yanamala. "Quantitative Estimation and Identification of Phospholipids in Gill, Liver, Intestine, Muscle, Brain Tissue of Fresh Water Fish Channa Punctatus (Bloch) in Thin Layer Chromatography (TLC) Sprayed with Dittmer –Lester Reagent." UTTAR PRADESH JOURNAL OF ZOOLOGY 45, no. 18 (2024): 727–35. http://dx.doi.org/10.56557/upjoz/2024/v45i184490.

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Phosphoipids were quantified and observed in different tissues i.e. gill, liver, intestine, muscle and brain tissue of fresh water fish Channa punctatus through Thin Layer Chromatography (TLC). Gill, liver, intestine, muscle and brain tissues of Channa punctatus punctatus dissected and homogenated in chloroform and methanol mixture (2:1 ratio) and centrifuged. The supernatant homogenate was used for the experiment. The sample tissue is loaded in TLC plate and dipped in a beaker which consists of mixture of chloroform and methanol (2:1 ratio) that works as mobile phase. TLC is a sheet of alumin

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Spasovski, Dejan, Todor Gruev, Nada Marina та ін. "The Diagnostic Value of N-Acetyl-β-D-Glucosaminidase and Microalbumin Concentrations in Rheumatoid Arthritis". Journal of Medical Biochemistry 26, № 4 (2007): 300–308. http://dx.doi.org/10.2478/v10011-007-0038-0.

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The Diagnostic Value of N-Acetyl-β-D-Glucosaminidase and Microalbumin Concentrations in Rheumatoid ArthritisThe purpose of this research was to compare the diagnostic values of laboratory variables, to present quantitative evaluations of the diagnostic sifted test with reference to sensitivity and specificity, the predictive value of the positive and negative test and precision of the test for N-acetyl-β-D-glucosa-minidase (NAG), microalbumin, rheumatoid factor (RF), Creactive protein (CRP), DAS 28 index, in early diagnosis of untreated rheumatoid arthritis (RA), and to define the effect of un

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Suthar, Manju, and Praveen Aggarwal. "Modeling CBR Value using RF and M5P Techniques." MENDEL 25, no. 1 (2019): 73–78. http://dx.doi.org/10.13164/mendel.2019.1.073.

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Two modeling techniques namely (i) Random forest (RF) and (ii) M5P model tree are used to model, soaked California bearing ratio (CBR) value of thermal power plant generated stabilized pond ash. Pond ash was stabilized with the help of commercially available lime and industrial waste lime sludge. CBR data generated from exhaustive experimental programme was used in the study. Variations in doses of stabilizer i.e. lime (L) and lime sludge (LS), curing duration (CP) and proctor test results density (MDD) & moisture (OMC) are considered as input variables. Experimentally observed CBR value w

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Anik Eko Novitasari, Lailatul Fitriyah, and Rosidah Rosidah. "Variasi Konsentrasi Fase Gerak pada Analisis Hidrokuinon dalam Sabun Pemutih dengan Metode Kromatografi Kertas." OBAT: Jurnal Riset Ilmu Farmasi dan Kesehatan 2, no. 4 (2024): 346–55. http://dx.doi.org/10.61132/obat.v2i4.637.

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Hydroquinone is a compound that is often used in skin whitening beauty products. According to BPOM 2007, the use of hydroquinone at levels above 2% can cause skin disorders, namely hyperpigmentation which can lead to skin cancer. This research was conducted to qualitatively analyze the hydroquinone compound found in skin whitening soap which does not have a BPOM number. The aim of this research is to determine the presence of hydroquinone compounds contained in skin whitening soap samples and to determine the differences in Rf values resulting from the comparison of the concentrations of the

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Mandayatma, Eka. "OPTIMALISASI RESISTANSI FEEDBACK DAN RESISTANSI INPUT PADA PENGUAT INVERTING UNTUK PENGKONDISI SINYAL." JURNAL ELTEK 17, no. 1 (2019): 44. http://dx.doi.org/10.33795/eltek.v17i1.131.

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Penguatan rangkaian penguat inverting dengan Op Amp ditentukan oleh nilai Resistansi Feedback (Rf) dan Resistansi Input (Rin) dimana penguatan merupakan perbandingan antara Rf dan Rin. Biasanya salah satu nilai (Rf atau Rin) diambil secara bebas. Secara teoritis formula tersebut memperbolehkan memberikan nilai Rf dan Rin berapapun asalkan memenuhi syarat kebutuhan penguatan (Av). Penentuan nilai yang bebas (berapapun) ini sering membingungkan karena secara teori semua nilai bisa diterapkan namun secara praktik dilapangan tidak semua nilai bisa memberikan hasil yang diharapkan. Untuk menghilang

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Bai, Jianjun, Wenjing Zhou, Haixiang Wang, et al. "Value of stereoelectroencephalography (SEEG)-guided radiofrequency thermocoagulation in treating drug-resistant focal epilepsy." Brain Science Advances 5, no. 3 (2019): 189–202. http://dx.doi.org/10.26599/bsa.2019.9050015.

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Stereoelectroencephalography (SEEG) has been widely used in the presurgical evaluation of patients with medically intractable epilepsy. In the past, SEEG was commonly used as a method for mapping and localizing the epileptogenic zone (EZ). Since 2004, several studies have been conducted to examine the effectiveness of SEEG-guided radiofrequency thermocoagulation (RF-TC) in treating refractory epilepsy. However, the seizure-free and responder rates varied greatly across studies. We aimed to analyze the outcome of 56 patients who were treated with SEEG-guided RF-TC to evaluate the effectiveness

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Mosy, Furijika Fitriana, and Kuswandani Kuswandani. "Identifikasi Senyawa Jamu Pegal Linu yang Beredar di Kabupaten Bantul dengan Metode Kromatografi Lapis Tipis." Surya Medika: Jurnal Ilmiah Ilmu Keperawatan dan Ilmu Kesehatan Masyarakat 14, no. 2 (2019): 80. http://dx.doi.org/10.32504/sm.v14i2.129.

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Background: Traditional herbal is not permitted to contain chemicals drug. It is possible allowed such as paracetamol and phenylbutazone.Objective: This study is aimed to identify the compounds of paracetamol and phenylbutazone in the traditional herbal of Jamu Pegal Linu (Herbal Medicine).Methods: This type of research was descriptive and the sample was determined by random sampling. The method used Thin Layer Chromatography (TLC) which is a physicochemical method. There were eight samples were extracted by the soxhletation method until a thick extract was obtained to be spotted in the quite

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Kulkarni, Dr Santosh. "PHARMACEUTICO ANALYTICAL STUDY OF SINDHURADYA TAILA." Avishkara 01, no. 01 (2022): 06–09. http://dx.doi.org/10.56804/avishkara.2022.1103.

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Background: Sindhuradya taila is a preparation mentioned in Kushta chikitsadhikara by Chakradatta as well as Bhaishajya Ratnavali. It is specifically claimed to be effective in Pama in the form of external application. Sindhuradya taila is a unique formulation with only two ingredients namely Sindhoora and Jeeraka. Aims & Objectives: In present study an attempt was taken to assess the quality of sindhuradyaTaila Study Setting: ACRL SJGAMC&H Koppal, It includes Organoleptic parameters (colour, smell, appearance, taste) and physico chemical parameters (specific gravity, saponification va

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Damjanovska, Ljubinka, Violeta Atanasovska, and Todor Gruev. "The Diagnostic Value of Anti-Cyclic Citrullinated Peptide Antibodies (anti-CCP) in Patients with Rheumatoid Arthritis." Journal of Medical Biochemistry 26, no. 4 (2007): 285–88. http://dx.doi.org/10.2478/v10011-007-0035-3.

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The Diagnostic Value of Anti-Cyclic Citrullinated Peptide Antibodies (anti-CCP) in Patients with Rheumatoid ArthritisA cross-sectional study was carried out to analyze the prevalence of anti-CCP antibodies and IgM RF in the sera of 160 randomly selected patients from the Rheumatology Department: 60 with RA, 50 with other rheumatic diseases (non-RA), 50 healthy controls (HC). The mean age of the group was 50.06+/-11.9 years. There were 141 females (88.1%) and 19 males (11.9%). RA patients fulfilled the revised ACR criteria. The mean duration of the disease was 82.4 months. Anti-CCP ELISA kit an

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Kurniaty, Rina, Dwi Putri Rejeki, and Cut Nurlaili Syarif. "Identifikasi Rhodamin B pada Eyeshadow dengan Metode Kromatografi Lapis Tipis." TIN: Terapan Informatika Nusantara 5, no. 2 (2024): 155–61. http://dx.doi.org/10.47065/tin.v5i2.5530.

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Eyeshadow is a decorative cosmetic or makeup that contains color pigments used on the eyelids. Based on BPOM Decree No. 23 of 2019 concerning technical requirements for cosmetic ingredients, the Indonesian government has determined more than 20 hazardous dyes, and Rhodamin B is the most widely used hazardous synthetic dye as a dyes. This study aims to find out the presence of Rhodamin B dye in eyeshadow sold around the Aceh Market and does not have a registration number by BPOM. This research was conducted in the Multifunctional Laboratory of the Faculty of Science and Technology using the Thi

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Ganaha, Akira, Nao Nojiri, Takeshi Nakamura, Teruyuki Higa, Shunsuke Kondo, and Tetsuya Tono. "Diagnosis of Enlarged Vestibular Aqueduct Using Wideband Tympanometry." Journal of Clinical Medicine 13, no. 21 (2024): 6602. http://dx.doi.org/10.3390/jcm13216602.

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Background: Wideband tympanometry (WBT) has the potential to distinguish various mechanical middle ear and inner ear pathologies noninvasively. This study investigated the diagnostic value of WBT in the diagnosis of enlarged vestibular aqueduct (EVA). Methods: The absorbance and resonance frequency (RF) of patients with EVA (40 ears, 25 patients) and matched population controls (39 ears, 28 subjects) were compared, alongside receiver operating characteristic (ROC) analysis. Correlations between VA width and RF were also examined. Results: Patients with EVA had higher absorbance at low frequenc

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Волкова, М. В. "Diagnostic value of autoantibodies in rheumatoid arthritis." Scientific and practical specialized journal "Rheumatology of Kazakhstan", no. 2(6) (November 23, 2022): 74–80. http://dx.doi.org/10.24353/qr.2022.65.37.013.

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Определить уровни и частоту встречаемости антител к циклическому цитруллинированнному пептицу (АЦЦП), ревматоидного фактора (РФ), антинуклеарных антител (АНА) при ревматоидном артрите (РА) и сравнить их диагностические характеристики, а также определить чувствительность и специфичность АНА при серонегативном РА. В исследование включено 270 пациентов с РА и 50 здоровых лиц. Уровни и частоты встречаемости всех исследованных антител у пациентов с РА были значимо выше по сравнению со здоровыми лицами (р<0,05). Наиболее высокие показатели чувствительности и специфичности для диагностики РА имели

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Kopciuch, Leszek. "Nicolai Hartmann’s ethics. Feeling and cognition of values: between emotionalism and rationalism." Ruch Filozoficzny 78, no. 3 (2022): 39–64. http://dx.doi.org/10.12775/rf.2022.022.

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The purpose of this article is to identify the most important elements of Hartmann’s understanding of “feeling of value” and to point out the ambiguities associated with this notion. The most important stages in the formation of this concept are delineated by the publications: Grundzüge einer Metaphysik der Erkenntnis, Ethik, Vom Wesen sittlicher Forderungen.[1] In all of these texts, Hartmann treats feeling of value as a proper way of knowing value, in relation to which philosophical cognition of value is only secondary and dependent. Hartmann’s understanding of feeling of value in ethics is,

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Zhang, Chuang, Qiongchan Guan, Jie Qin, Daochao Huang, and Jinhong Wu. "An Auxiliary Scoring Model for Patients with Acute Pulmonary Embolism Complicated with Atrial Fibrillation Was Established Based on Random Forests." Emergency Medicine International 2022 (August 22, 2022): 1–8. http://dx.doi.org/10.1155/2022/2596839.

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The purpose of this study was to explore the establishment of an auxiliary scoring model for patients with acute pulmonary embolism (APE) complicated with atrial fibrillation (AF) based on random forest (RF) and its application effect. A retrospective analysis was performed on the general data, underlying diseases, laboratory indicators, and cardiac indicators of 100 patients with APE admitted to our hospital from 2018 to 2021. The occurrence of atrial fibrillation in patients with pulmonary embolism was taken as a categorical variable, and the general data, underlying diseases, laboratory ind

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Ansari, Muhammad Imran, Jawed Abubaker, Madiha Umair, Komal Baloch, Musa Karim, and Nawal Salahuddin. "PREDICTING POST-EXTUBATION RESPIRATORY FAILURE AFTER MYOCARDIAL INFARCTION USING THE RAPID SHALLOW BREATHING INDEX AND LUNG ULTRASOUND SCORE." Journal of Ayub Medical College Abbottabad 34, no. 3 (2022): 528–36. http://dx.doi.org/10.55519/jamc-03-10921.

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Background: The Rapid Shallow Breathing Index (RSBI) has been hypothesized to have discriminating power for categorizing patients at higher risk of post-extubation respiratory failure (RF). Hence aim of this study was to determine the predictive value of RSBI for post-extubation RF in patients after acute myocardial infarction (AMI). Methods: Consecutive, intubated patients admitted post-revascularization were included. RSBI and lung ultrasound score (LUS) were measured and post-extubation RF within 48 hours was recorded. Results: RF was observed in 36.3% (78/215) patients. For the prediction

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Siripornpitak, Suvipaporn, Duangkanok Lueangwattanapong, Apichaya Sriprachyakul, Suthep Wanitkun, and Alisa Limsuwan. "Branch Pulmonary Artery Regurgitation in Repaired Tetralogy of Fallot: Correlation with Pulmonary Artery Morphology, Distensibility, and Right Ventricular Function." Tomography 7, no. 3 (2021): 412–23. http://dx.doi.org/10.3390/tomography7030036.

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Background: The aim was to determine the effect of pulmonary artery (PA) morphology on the branch pulmonary artery-regurgitation fraction (BPA-RF), the relationship of pulmonary insufficiency (PI) to BPA-RF and PA-distensibility, and factors (BPA-RF and PA-distensibility) associated with right ventricular function (RVF) in repaired tetralogy of Fallot (rTOF). Methods: A total of 182 rTOF patients (median age 17.1 years) were analyzed for length, angle of PA, BPA-RF, PI, and PA-distensibility, using magnetic resonance imaging. Results: The left PA had a significant greater RF than the right PA

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Arief, Arief Rahman, and Tina Rosa. "Analisis Kinerja Keuangan Pada Toko RF Computer." Journal of Accounting, Management, Economics, and Business (ANALYSIS) 1, no. 2 (2023): 114–24. https://doi.org/10.56855/analysis.v1i2.216.

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Penelitian ini bertujuan untuk mengetahui kinerja keuangan Toko RF Computer dengan menggunakan metode profitabilitas, likuiditas, dan Economic Value Added (EVA). Metode yang digunakan adalah metode deskriptif. Penelitian ini memperoleh data primer berupa data keuangan yang dimiliki oleh Toko RF Computer. Hasil penelitian Toko RF Computer disimpulkan memiliki kinerja keuangan yang baik dari setiap alat ukur yang digunakan. Kata Kunci : Kinerja Keuangan, Rasio Profitabilitas, Rasio Likuiditas, Economic Value Added (EVA)

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Meyra Chusna Mayarakaca, Annysa Aprilya, Faridatun Nadziroh, and Anang Budikarso. "Kinerja Sistem Hybrid Radio Frequency Energy Harvesting Pada Sistem Komunikasi V2V." Jurnal Teknik Ilmu dan Aplikasi 5, no. 2 (2024): 30–33. http://dx.doi.org/10.33795/jtia.v5i2.4817.

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This article investigates the impact of hybrid Radio Frequency Energy Harvesting (RF-EH) techniques on cooperative Vehicle-to-Vehicle (V2V) communications systems. The energy harvesting (EH) process is carried out in the vehicle or vehicle transmitter as a source using the Time Switching (TS) protocol and in the vehicle or relay vehicle using the Power Splitting (PS) protocol. The transmitter or source vehicle obtains the RF signal for the EH process from the base station (BS), while the relay vehicle obtains the RF signal from the transmitter or source vehicle. System performance is presented

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Syarifah, Anisa Lailatusy, Rurini Retnowati, and Hermin Sulistyarti. "Characterization of the Curcuminoids Fingerprint Profile in Curcuma and Zingiber Genera by TLC – Digital Image Analysis." Journal of Pure and Applied Chemistry Research 8, no. 2 (2019): 147–61. http://dx.doi.org/10.21776/ub.jpacr.2019.008.02.462.

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Curcuma longa, C. xanthorrhiza, C. heyneana, and Zingiber cassumunar contain high curcuminoid and have relatively similar yellow color. Therefore, they are potentially adulterated and difficult to differentiate in the form of powder. Hence, it is necessary to characterize the fingerprints compound profile by a simple and rapid method. This research aims to determine fingerprint compound profile of curcuminoid using Thin Layer Chromatography (TLC) and digital image analysis. The result of the research identified that the fingerprint compound profile of curcuminoid on the four rhizomes was obtai

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Kim, YoungJin, and HyungJin Kim. "An QoS Eveluation with Designing of 5G RF Repeater Infrastructures in Small Closed Environments." Korean Institute of Smart Media 14, no. 4 (2025): 18–31. https://doi.org/10.30693/smj.2025.14.4.18.

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This paper proposes a plan to improve the quality of mobile communication service by selecting the receiving antenna location of the 5G RF relay device in a small closed environment, presenting four types of infrastructure design, and analyzing each RF loss and service quality through experiments. First, the ideal receiving antenna location is selected by measuring the quality of service at the RF receiving end. To verify the results, the RF loss value is calculated from the relay device to the distributed antenna for each design type, and the relationship between RF loss value and service qua

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Kolarz, Bogdan, Marek Ciesla, Ann K. Rosenthal, Magdalena Dryglewska, and Maria Majdan. "The value of anti-CarP and anti-PAD4 as markers of rheumatoid arthritis in ACPA/RF negative rheumatoid arthritis patients." Therapeutic Advances in Musculoskeletal Disease 13 (January 2021): 1759720X2198986. http://dx.doi.org/10.1177/1759720x21989868.

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Background: Anti-citrullinated protein antibodies (ACPAs) and rheumatoid factor (RF) are key factors in the American College of Rheumatology/European League Against Rheumatism rheumatoid arthritis (RA) classification criteria markers. However, about 30% of patients diagnosed with RA are seronegative, rationalizing the need for new serologic markers for RA. Antibodies against carbamylated proteins (anti-CarP) and against peptidyl-arginine deiminase type 4 (anti-PAD4) have been postulated to be useful RA markers. The purpose of this study is to evaluate the value of anti-CarP and anti-PAD4 in a

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Nersisyan, H. B., and C. Deutsch. "Stopping of a relativistic electron beam in a plasma irradiated by an intense laser field." Laser and Particle Beams 32, no. 1 (2014): 157–69. http://dx.doi.org/10.1017/s026303461300089x.

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AbstractThe effects of a radiation field (RF) on the interaction process of a relativistic electron beam (REB) with an electron plasma are investigated. The stopping power of the test electron averaged with a period of the RF has been calculated assuming an underdense plasma, ω0 > ωp, where ω0is the frequency of the RF and ωpis the plasma frequency. In order to highlight the effect of the radiation field we present a comparison of our analytical and numerical results obtained for nonzero RF with those for vanishing RF. In particular, it has been shown that the weak RF increases the mean ene

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K. Mohammed Salih, Raya, Ali M. Al-Gharawi, and Khalid I. Al-Lehibi. "The Correlation Between Hyperglycemia and Rheumatoid Factor in Type 2 Diabetic Patients in Al- Risafa Area, Baghdad." Iraqi Journal of Pharmaceutical Sciences ( P-ISSN 1683 - 3597 E-ISSN 2521 - 3512) 21, no. 1 (2017): 105–11. http://dx.doi.org/10.31351/vol21iss1pp105-111.

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Diabetes mellitus type 2 (T2DM) formerly called non-insulin dependent diabetes mellitus (NIDDM) or adult-onset diabetes is a common disease. Rheumatoid factor is a well-established test used in the diagnosis and follows the prognosis of rheumatoid arthritis (RA). Rheumatoid factor is sometimes found in serum of patients with other diseases including diabetes mellitus (DM), due to the presence of pro-inflammatory cytokines such as TNF- Î± which play an important role in chronic inflammatory and autoimmune diseases like rheumatoid arthritis (RA). The aim of the study is to investigate the associ

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Morge-Rollet, Louis, Frédéric Le Roy, Denis Le Jeune, Charles Canaff, and Roland Gautier. "RF eigenfingerprints, an Efficient RF Fingerprinting Method in IoT Context." Sensors 22, no. 11 (2022): 4291. http://dx.doi.org/10.3390/s22114291.

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In IoT networks, authentication of nodes is primordial and RF fingerprinting is one of the candidates as a non-cryptographic method. RF fingerprinting is a physical-layer security method consisting of authenticated wireless devices using their components’ impairments. In this paper, we propose the RF eigenfingerprints method, inspired by face recognition works called eigenfaces. Our method automatically learns important features using singular value decomposition (SVD), selects important ones using Ljung–Box test, and performs authentication based on a statistical model. We also propose simula

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Li, Rui, Bo Ni, Gaoji Yang, et al. "Drying and Quality Characteristics of Whole Jujubes Subjected to Air Assisted Radio Frequency Heating." Journal of the ASABE 66, no. 5 (2023): 1057–66. http://dx.doi.org/10.13031/ja.15433.

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Highlights The effect of air temperature and electrode gap (EG) on RF drying efficiency was evaluated. Drying rate (Dr), the mathematical modeling of drying curves, heating uniformity, effective moisture diffusivity coefficient (Deff), and quality parameters after drying were analyzed. Drying rate was accelerated by reducing EG or increasing air temperature under EG RF drying. The trend of heating uniformity was the same as that of Deff value. The evaluated quality parameters of treated whole jujubes showed that 40°C air assisted 17 cm EG RF drying had the best quality. Abstract. This study ai

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Shnyrkov, V. I., V. Yu Lyakhno, О. A. Kalenyuk, D. G. Mindich, O. O. Leha, and A. P. Shapovalov. "Control of the effective value of the critical current of the RF SQUID by the high-frequency electromagnetic field." Low Temperature Physics 50, no. 6 (2024): 497–501. http://dx.doi.org/10.1063/10.0026089.

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An analysis of the influence of the high-frequency electromagnetic field on the amplitude-frequency and signal characteristics of RF SQUID and experimental verification are carried out. At low parameter βL, the RF SQUID behavior is well described analytically by the theoretical model. In experiment, basic operation scheme is used in which the interferometer is inductively connected to a resonant circuit driven by RF current at a frequency close to the resonance frequency of the circuit. It is shown that parameter βL, which distinguishes between hysteretic and nonhysteretic regimes, can be effe

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Tang, Zhi Ling, and Si Min Li. "Tensors Method Based Method of RF Fingerprints Identification." Applied Mechanics and Materials 719-720 (January 2015): 941–48. http://dx.doi.org/10.4028/www.scientific.net/amm.719-720.941.

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Because of RF power amplifier’s nonlinearity and the discrete distribution of electronic components value, it is possible to form individual RF fingerprints. How to identify individual RF fingerprints is the key problem because received RF signals are weak to be affected by channel noises. In order to identify steady RF signal fingerprints, this paper proposed a tensors-based method for obtaining identification patterns from high order cummulants. Firstly, high order cummulants tensors of received RF signal were formed as distinguished patterns of RF Fingerprints. Secondly, these cummulants te

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Umniyatul, Dewi, and Dwi Kurniawati Sambodo. "Identifikasi Sediaan Jamu Kuat yang Beredar di Kecamatan Banguntapan dan Pleret Kabupaten Bantul dengan Metode KLT." Surya Medika: Jurnal Ilmiah Ilmu Keperawatan dan Ilmu Kesehatan Masyarakat 14, no. 2 (2019): 103. http://dx.doi.org/10.32504/sm.v14i2.133.

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Background: Traditional herbs are ingredients or herbs in the form of plant material, animal ingredients, mineral ingredients, galenic preparations or mixtures of these ingredients, it has been used as medicine traditionally.Objective: This study is aimed to Identify of Sildenafil Citrate on “Jamu Kuat” (Herbal Medicine) products.Methods: This type of research was descriptive and the sample was determined by quota sampling. The method used Thin Layer Chromatography (TLC) which was a physicochemical method. There were seven samples were extracted by the soxhletation method until a thick extract

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Cao, Shuaitao, Chenyan Yang, Yongzhen Zang, et al. "Simulated and Verification of Mass and Heat Transfer Coupled Model of Jujube Slices Dried by Hot Air Combined with Radio Frequency Heat Treatment at Different Drying Stages." Foods 12, no. 16 (2023): 3025. http://dx.doi.org/10.3390/foods12163025.

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This study investigates the impact of radio frequency (RF) heat treatment on heat and mass transfer during the hot air drying of jujube slices. Experiments were conducted at different drying stages, comparing single-hot air drying with hot air combined with RF treatment. Numerical models using COMSOL Multiphysics® were developed to simulate the process, and the results were compared to validate the models. The maximum difference between the simulated value of the center temperature and the experimental value was 6.9 °C, while the minimum difference was 0.1 °C. The maximum difference in average

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Antiochou, Konstantina, and Stathis Psillos. "Transparency, Values and Trust in Science." Ruch Filozoficzny 77, no. 4 (2022): 73–94. http://dx.doi.org/10.12775/rf.2021.037.

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Current debates over inductive risk and the role(s) of values in science have largely revolved around the question of the moral responsibilities of scientists: Do scientists have the duty to consider the potential non-epistemic consequences of theories they advocate and, if yes, what (or whose) values should be taken into account in decision-making? The paper discusses two different – though potentially complementary – responses to this question: a) H. Douglas’s view that scientists should avoid causing reckless or negligent harm to others as a result of the decisions they make and b) K. Ellio

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Noviyanty, Yuska. "SKRINING FITOKIMIA FRAKSI AQUA DEST EKSTRAK ETANOL DAUN SALAM Syzygium polyanthum (Wight) Walp." JURNAL ILMIAH FARMASI AKADEMI FARMASI JEMBER 7, no. 2 (2024): 50–56. https://doi.org/10.53864/jifakfar.v7i2.210.

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Diabetes, hypertension, diarrhea, gastritis, and cholesterol can be reduced by Bay Leaves or Syzygium polyanthum (Wight) Walp because of its properties. Knowing the Rf value (aquadest fraction of bay leaf ethanol extract) and secondary metabolite compounds (aquadest fraction) is the research's purpose. Extraction using 96% ethanol solvent with the maceration method, which will be evaporated using a rotary evaporator. Furthermore, the extract obtained will be fractionated using the liquid-liquid fractionation method. The level of polarity obtained will determine the fractionation treatment, the

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Heutz, J., M. W. Schreurs, A. Van der Helm – van Mil, and P. De Jong. "AB0199 THE PROGNOSTIC VALUE OF IGA ANTI-CITRULLINATED PROTEIN ANTIBODY AND RHEUMATOID FACTOR IN AN EARLY ARTHRITIS COHORT WITH A TREAT-TO-TARGET APPROACH." Annals of the Rheumatic Diseases 82, Suppl 1 (2023): 1282–83. http://dx.doi.org/10.1136/annrheumdis-2023-eular.3090.

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BackgroundThe EULAR research agenda states that new biomarkers are needed to stratify patients and to predict therapeutic response or lack of response in rheumatoid arthritis. Currently, IgG anti-citrullinated protein antibody (ACPA) and IgM rheumatoid factor (RF) are used as poor prognostic factors for treatment decisions in RA. The mucosal origin hypothesis of RA renewed the interest in the role of IgA isotype autoantibodies for disease pathogenesis. However, the value of IgA ACPA and RF for prognostication of treatment response under a treat-to-target approach is not clear to date.Objective

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Chen, Yen-Hui, Yu-Fen Yen, and Su-Der Chen. "Effects of Radio Frequency Heating on the Stability and Antioxidant Properties of Rice Bran." Foods 10, no. 4 (2021): 810. http://dx.doi.org/10.3390/foods10040810.

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Radio frequency (RF) technology is considered as a rapid heating method. Lipase in rice bran could highly accelerate lipid oxidation. The objectives of this study were to establish the radio frequency heating conditions for lipase inactivation and to evaluate the stability and antioxidant capacity. The results showed that the suitable electrode gap for a 1 kg sample load was 6 cm, and it only took 2 min to heat rice bran from 25 °C to 100 °C. Besides, there were no significant differences in the total phenolic content, flavonoid content and color between the untreated and RF-treated group, and

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Zheng, Yuhang, and Yinying Duan. "Growth Enterprise Value Assessment Based on RF-BP Neural Network." IOP Conference Series: Earth and Environmental Science 310 (September 5, 2019): 052043. http://dx.doi.org/10.1088/1755-1315/310/5/052043.

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Tian, Rongcai, Bin Zou, Shenxin Li, et al. "A Model Combining Sensitive Vegetation Indices and Fractional-Order Differential Characteristic Bands for SPAD Value Estimation in Cd-Contaminated Rice Leaves." Agriculture 15, no. 3 (2025): 311. https://doi.org/10.3390/agriculture15030311.

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Rapid and nondestructive estimation of leaf SPAD values is crucial for monitoring the effects of cadmium (Cd) stress in rice. To address the issue of low estimation accuracy in leaf SPAD value models due to the loss of spectral information in existing studies, a new estimation model, which combines sensitive vegetation indices (VIss) and fractional order differential characteristic bands (FODcb), is proposed in this study. To validate the effectiveness of this new model, three scenarios, with no Cd contamination, 1.0 mg/kg Cd contamination, and 1.4 mg/kg Cd contamination, were set up. Leaf spe

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Ledoux, Léon A. F., Peter J. Brands, and Arnold P. G. Hoeks. "Reduction of the Clutter Component in Doppler Ultrasound Signals Based on Singular Value Decomposition: A Simulation Study." Ultrasonic Imaging 19, no. 1 (1997): 1–18. http://dx.doi.org/10.1177/016173469701900101.

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In pulsed Doppler ultrasound systems, the ultrasound radiofrequency (RF) signals received can be employed to estimate noninvasively the time-dependent blood flow velocity distribution within an artery. The RF signals are composed of signals originating from clutter (e.g., vessel walls) and scatterers (e.g., red blood cells). The clutter, which is induced by stationary or slowly-moving structure interfaces, must be suppressed to get reliable estimates of the mean blood flow velocities. In conventional pulsed Doppler systems, this is achieved with a static temporal high-pass filter. The static c

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Lotfy, Ashrakat A., Mohamed E. Abuarab, Eslam Farag, et al. "Forecasting Blue and Green Water Footprint of Wheat Based on Single, Hybrid, and Stacking Ensemble Machine Learning Algorithms Under Diverse Agro-Climatic Conditions in Nile Delta, Egypt." Remote Sensing 16, no. 22 (2024): 4224. http://dx.doi.org/10.3390/rs16224224.

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The aim of this research is to develop and compare single, hybrid, and stacking ensemble machine learning models under spatial and temporal climate variations in the Nile Delta regarding the estimation of the blue and green water footprint (BWFP and GWFP) for wheat. Thus, four single machine learning models (XGB, RF, LASSO, and CatBoost) and eight hybrid machine learning models (XGB-RF, XGB-LASSO, XGB-CatBoost, RF-LASSO, CatBoost-LASSO, CatBoost-RF, XGB-RF-LASSO, and XGB-CatBoost-LASSO) were used, along with stacking ensembles, with five scenarios including climate and crop parameters and remo

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Tunca, Sezgin, Mehmet Aydin, Muhammet Karapiçak, and Marko Lindroos. "Recreational fishing along the Middle and Eastern Black SeaTurkish coasts." Acta Adriatica 59, no. 2 (2018): 191–206. http://dx.doi.org/10.32582/aa.59.2.4.

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This study investigated biological, social and mainly economic dimensions of recreational fishing (RF) in 8 coastal Middle and Eastern Black Sea provinces of Turkey. In all provinces, a total number of 874 shore-based recreational fishers were interviewed via on-site face-to-face interviews during the fishing activity or at access points being monthly from January to December in 2015. Market value with RF index of added value approaches were used to calculate economic gains and losses from RF. The consistency was observed with the high education levels, high expense and high market value for f

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Liu, Ruifang, Lixia Pang, Yidian Yang, et al. "Air Quality—Meteorology Correlation Modeling Using Random Forest and Neural Network." Sustainability 15, no. 5 (2023): 4531. http://dx.doi.org/10.3390/su15054531.

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Under the global warming trend, the diffusion of air pollutants has intensified, causing extremely serious environmental problems. In order to improve the air quality–meteorology correlation model’s prediction accuracy, this work focuses on the management strategy of the environmental ecosystem under the Artificial Intelligence (AI) algorithm and explores the correlation between air quality and meteorology. Xi’an city is selected as an example. Then, the theoretical knowledge is explained for Random Forest (RF), Backpropagation Neural Network (BPNN), and Genetic Algorithm (GA) in AI. Finally,

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Hunnicke Nielsen, Vivi, Steen Henrik Møller, Bente Krogh Hansen, and Peer Berg. "Response to selection and genotype–environment interaction in mink (Neovison vison) selected on ad libitum and restricted feeding." Canadian Journal of Animal Science 91, no. 2 (2011): 231–37. http://dx.doi.org/10.4141/cjas10046.

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Nielsen, V. H., Møller, S. H., Hansen, B. K. and Berg, P. 2011. Response to selection and genotype-environment interaction in mink (Neovison vison) selected on ad libitum and restricted feeding. Can. J. Anim. Sci. 91: 231–237. Mink were selected for high November weight (AL line) and low feed conversion ratio (FC line) on ad libitum feeding and for high November weight on restricted feeding (RF line). After three generations of selection, the average estimated breeding value for November weight was 533, 326, and 150 g in males and 168, 82, and −85 g in females in the AL, RF, and FC lines. The

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Handayani, Rini, Rita Dwi Rahayu, and Joko Sulistyo. "PURIFIKASI SENYAWA POLIFENOL GLUKOSIDA HASIL REAKSI TRANSGLIKOSILASI ENZIMATIK DARI BIAKAN DAN UJI AKTIVITASNYA SEBAGAI ANTIMIKROBA." Jurnal Teknologi Lingkungan 13, no. 2 (2016): 213. http://dx.doi.org/10.29122/jtl.v13i2.1420.

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Polifenol-glukosida disintesis menggunakan CGTase yang berasal dari Nocardia sp. Sintesis polifenol-glukosida dilakukan dengan menggunakan resorsinol sebagai akseptor dan tepung sagu sebagai donor. Penelitian ini bertujuan untuk mensintesis senyawa polifenol-glukosida secara enzimatik menggunakan CGTase dari biakan Nocardia sp,menguji aktivitasnya sebagai senyawa antimikroba dan untuk mengetahui pengaruh senyawa polifenol-glukosida terhadap kerusakan morfologi sel dari biakan Bacillus subtilis. Polifenol–glukosida hasil reaksi transfer dimurnikan menggunakan kolom kromatografi yang berisi matr

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Tkachenko, Alexey, Igor Lysenko, and Andrey Kovalev. "Investigation and Research of High-Performance RF MEMS Switches for Use in the 5G RF Front-End Modules." Micromachines 14, no. 2 (2023): 477. http://dx.doi.org/10.3390/mi14020477.

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In this article, based on the developed methodology, the stages of designing two designs of high-performance radio-frequency single-pole single-throw microelectromechanical switches are investigated. These radio-frequency microelectromechanical switches are designed to operate at a central resonant frequency of 3.6 GHz and 3.4 GHz, respectively, as well as to work both in mobile communication devices and in the design of the architecture of 5G mobile networks, in particular in arrays of integrated antennas and radio-frequency interface modules. The manufacture and study of two designed structu

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Volkava, M., and A. Kundzer. "AB1113 DIAGNOSTIC VALUE OF ANTI-Sa AND ANTI-hn RNP K ANTIBODIES IN SERONEGATIVE RHEUMATOID ARTHRITIS." Annals of the Rheumatic Diseases 79, Suppl 1 (2020): 1846.1–1846. http://dx.doi.org/10.1136/annrheumdis-2020-eular.5407.

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Background:The diagnostics of seronegative rheumatoid arthritis (RA) remains the important issue in modern rheumatology. Other biomarkers are studied to close the diagnostic gap.Objectives:The aim of work was to assess anti-Sa and anti-hnRNP K in patients with RA and to evaluate their diagnostic value in seronegative by anti-CCP and RF RA.Methods:In the study were included 270 patients, which fulfill EULAR/ACR 2010 criteria for RA and 50 healthy controls. The mean of patients age was 52.80 (95% CI:51.70-54.80 years).Levels of antibodies to anti-CCP and anti-Sa were evaluated by ELISA according

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HOU, YAN-FENG, GUANG-ZHI SUN, HONG-SHENG SUN, WEN-PING PAN, WEN-BO LIU, and CHENG-QI ZHANG. "Diagnostic Value of Anti-Sa and Anticitrullinated Protein Antibodies in Rheumatoid Arthritis." Journal of Rheumatology 39, no. 8 (2012): 1506–8. http://dx.doi.org/10.3899/jrheum.111523.

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Objective.To determine the diagnostic value of anticitrullinated protein antibodies, second generation (ACPA2), by electrochemiluminescent immunoassay (ECLIA) and anti-Sa by ELISA in a large cohort of Chinese patients with early rheumatoid arthritis (RA).Methods.One hundred ninety-eight patients with early RA (< 1 yr duration), 112 with other rheumatic diseases, and 60 healthy individuals were studied.Results.The combination of anti-Sa and ACPA2 positivity had the highest specificity (99.42%), but it had a rather low sensitivity (50.0%). The combination of anti-rheumatoid factor (RF) and AC

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Kuhn, Véronique, Fabrice Seguin, Cyril Lahuec, and Christian Person. "Enhancing RF-to-DC conversion efficiency of wideband RF energy harvesters using multi-tone optimization technique." International Journal of Microwave and Wireless Technologies 8, no. 2 (2014): 143–53. http://dx.doi.org/10.1017/s1759078714001457.

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In this paper, a 1.8–2.6 GHz wideband rectenna is designed for radio frequency (RF) energy harvesting in the context of wireless sensor nodes (WSN). To assess the feasibility of ambient RF energy harvesting, the power density from RF base stations is analyzed through statistical measurements. Power density measurements are also performed close to Wi-Fi routers. Using these results, a methodology based on impedance matching network adaptation and maximum power transfer is proposed to design the wideband RF harvester. Using this method, three RF bands,i.e.GSM1800, UMTS and WLAN, are covered. The

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Kristanti, Handriani, and Woro Anindito Sri Tunjung. "DETECTION OF ALKALOID, FLAVONOID, AND TERPENOID COMPOUNDS IN BREAD (Artocarpus communis Forst.) LEAVES AND PULPS." KnE Life Sciences 2, no. 1 (2015): 129. http://dx.doi.org/10.18502/kls.v2i1.131.

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<p>Leaves of bread tree (Sukun/ Artocarpus communis Forst.) can be used to cure skin diseases, heart, kidneys, and inflamation. The advantageous of bread might be related with its secondary metabolite compounds. The purpose of this research was to detect and compare the content of alkaloid, flavonoid, and terpenoid compounds in bread leaves and pulps using Thin layer Chromatography (TLC) methods. The coloring reagents were dragendorf for alkaloid, sitroborat for flavanoid and sulfate vanillin for terpenoid. Reference compounds used for alkaloid is quinine, rutine for the flavonoid, and t

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Pan, De Min, Wen Jing Shang, Nan Wang, and Rublev Victor. "RF Front-End Design and Implementation Based on Application of Software Radio." Applied Mechanics and Materials 577 (July 2014): 957–60. http://dx.doi.org/10.4028/www.scientific.net/amm.577.957.

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Digitizing architecture of band-pass sampling at IF(Intermediate Frequency) is a kind of software radio structure of high practical value. One kind of application in the digitizing architecture of band-pass sampling at IF of RF (Radio Frequency) front-end hardware is designed in this paper. The experimental results show that this kind of RF front-end has great practical value and research significance.

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Jasmir, Jasmir, Dodo Zaenal Abidin, Fachruddin Fachruddin, and Willy Riyadi. "Experimental of information gain and AdaBoost feature for machine learning classifier in media social data." Indonesian Journal of Electrical Engineering and Computer Science 36, no. 2 (2024): 1172. http://dx.doi.org/10.11591/ijeecs.v36.i2.pp1172-1181.

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<span lang="EN-US">In this research, we use several machine learning methods and feature selection to process social media data, namely restaurant reviews. <br /> The selection feature used is a combination of information gain (IG) and adaptive boosting (AdaBoost) which is used to see its effect on the classification performance evaluation value of machine learning methods such as Naïve Bayes (NB), K-nearest neighbor (KNN), and random forest (RF) which is the aim of this research. NB is very simple and efficient and very sensitive to feature selection. Meanwhile, KNN is known for i

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Jasmir, Jasmir Dodo Zaenal Abidin Fachruddin Fachruddin Willy Riyadi. "Experimental of information gain and AdaBoost feature for machine learning classifier in media social data." Indonesian Journal of Electrical Engineering and Computer Science 36, no. 2 (2024): 1172–81. https://doi.org/10.11591/ijeecs.v36.i2.pp1172-1181.

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In this research, we use several machine learning methods and feature selection to process social media data, namely restaurant reviews.The selection feature used is a combination of information gain (IG) and adaptive boosting (AdaBoost) which is used to see its effect on the classification performance evaluation value of machine learning methods such as Naïve Bayes (NB), K-nearest neighbor (KNN), and random forest (RF) which is the aim of this research. NB is very simple and efficient and very sensitive to feature selection. Meanwhile, KNN is known for its weaknesses such as biased k val

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