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Choo, Bryan Peide, George Boon-Bee Goh, Sing Yi Chia, Hong Choon Oh, Ngiap Chuan Tan, Jessica Yi Lyn Tan, Tiing Leong Ang, Yong Mong Bee, and Yu Jun Wong. "Non-alcoholic fatty liver disease screening in type 2 diabetes mellitus: A cost-effectiveness and price threshold analysis." Annals of the Academy of Medicine, Singapore 51, no. 11 (November 25, 2022): 686–94. http://dx.doi.org/10.47102/annals-acadmedsg.2022284.
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Introduction: The cost-effectiveness of screening asymptomatic non-alcoholic fatty liver disease (NAFLD) patients remains debatable, with current studies assuming lifelong benefits of NAFLD screening while neglecting cardiovascular outcomes. This study aims to assess the cost-effectiveness of NAFLD screening among type 2 diabetes mellitus (T2DM) patients, and to establish a price threshold for NAFLD treatment, when it becomes available. Method: A Markov model was constructed comparing 4 screening strategies (versus no screening) to identify NAFLD with advanced fibrosis among T2DM patients: fibrosis-4 (FIB-4), vibration-controlled transient elastography (VCTE), FIB-4 and VCTE (simultaneous), and FIB-4 and VCTE (sequential). Sensitivity analyses and price threshold analyses were performed to assess parameter uncertainties in the results. Results: VCTE was the most cost-effective NAFLD screening strategy (USD24,727/quality-adjusted life year [QALY]), followed by FIB-4 (USD36,800/QALY), when compared to no screening. Probabilistic sensitivity analysis revealed a higher degree of certainty for VCTE as a cost-effective strategy compared to FIB-4 (90.7% versus 73.2%). The duration of expected screening benefit is the most influential variable based on incremental cost-effectiveness ratio tornado analysis. The minimum duration of screening benefit for NAFLD screening to be cost-effective was at least 2.6 years. The annual cost of NAFLD treatment should be less than USD751 for NAFLD screening to be cost-effective. Conclusion: Both VCTE and FIB-4 are cost-effective NAFLD screening strategies among T2DM patients in Singapore. However, given the lack of access to VCTE at primacy care and potential budget constraints, FIB-4 can also be considered for NAFLD screening among T2DM patients in Singapore. Keywords: Cost-effectiveness analysis, fatty liver, screening, liver fibrosis, population health
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Copur, Betul, Serkan Surme, Gulsah Tuncer, and Omer Faruk Bayramlar. "The Role of APRI, FIB-4, and SAD-60 Scores as Predictors of Mortality in COVID-19 Patients." Infectious Diseases and Clinical Microbiology 5, no. 2 (June 23, 2023): 144–52. http://dx.doi.org/10.36519/idcm.2023.233.
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Objective: Predictors of mortality that indicate disease severity plays an important role in COVID-19 management and treatment decisions. This study aimed to investigate the association between fibrosis-4 (FIB-4) score, aspartate aminotransferase-to-platelet ratio index (APRI), and novel biomarker-based score (SAD-60) with mortality in COVID-19 patients treated in a tertiary hospital. Materials and Methods: In this single-center retrospective study, patients ≥18 years of age who were admitted to our hospital for COVID-19 between December 1 and 31, 2021, were included. Patients were divided into two groups as deceased and survived. A comparative analysis was applied. Predictive abilities of the FIB-4, APRI, and SAD-60 scores for in-hospital mortality were evaluated. Results: Of the 453 patients enrolled in the study, 248 (54.6%) were male, and the mean age was 52.2±14.7 years. Mortality was recorded in 39 (8.5%) of the patients. The median values of APRI (0.43 and 0.58; p=0.001), FIB-4 score (1.66 and 2.91; p<0.001), and SAD-60 (2 and 8.25; p<0.001) were higher in deceased patients than in survivors. The optimal cut-off value for predicting mortality in the receiver operating characteristic (ROC) curve analysis was 0.58 for APRI (sensitivity=56.4%, specificity=63.6%); 2.14 for FIB-4 score (sensitivity=79.5%, specificity=68.2%); 4.25 for SAD-60 (sensitivity=90%, specificity=73.8%). In Cox regression analysis with a model that included gender, chronic obstructive pulmonary disease (COPD), and coronary artery disease (CAD), FIB-4 (hazard ratio [HR]=4.013, 95% confidence interval [CI]=1.643-9.803; p=0.002), and SAD-60 (HR=8.850, 95% CI=1.035-75.696; p=0.046) were independent risk factors for mortality. Conclusion: SAD-60 and FIB-4 scores are easily applicable and may be used to predict mortality in COVID-19 patients. Keywords: APRI, FIB-4, SAD-160, COVID-19, mortality, predictors
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Javed, Munaza, Javed Iqbal, Muhammad Imran Aslam, Muzamul Shahzad, Zafar Ahmad Khan, and Altaf Ahmad Yar. "Compare the Efficacy of Aspartate Aminotransferase to Platelet Index (APRI) and FIB-4 with Transient Elastography: FibroScan in Patients with Chronic Hepatitis C." Pakistan Journal of Medical and Health Sciences 16, no. 7 (July 30, 2022): 306–7. http://dx.doi.org/10.53350/pjmhs22167306.
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Objective: Compare the efficacy of aspartate aminotransferase in patients with chronic hepatitis with fibro scan to platelet index and FIB-4 with transient elastography. Study Design: Cross-sectional study. Place & Duration of Study: Department of Medicine, Azhra Naheed Medical College, Lahore from 1st May 2020 to 31st October 2020. Methodology: Eleven hundred and fifty patients of both sexes were enrolled. Demographic patients after written consent have been registered. Both patients had a detailed history, clinical review and investigations designed to rule out misunderstanding and partiality in the findings of the research. The diagnosis was perfectly performed for continuing hepatitis C infection, which included various biochemical tests. We contrasted the efficiency of the readily available aspartate aminotrasnferase with the FIB-4 with fibro scansand platelet index for distinguishing progression of hepatitis C virus fibrosis. Results: Mean age of the patients was 39.14±14.68 years with mean BMI 22.68±9.14kg/m2. Seven hundred and thirty (63.5%) were females and 420 (36.5%) were males. Almost 70% of the HCV patients were on stage F0-F1 and 6.5% of the patients were in F2 stage and 15.7%, 16.97% of the patients were in F3 and F4. No significant difference was observed regarding mortality rate with p value <0.05. Conclusion: Aspartate aminotransferase/platelet index and FIB4 are expected to reliably separate cirrhotic and non-cirrhotic stages from the expensive and unusual fibro scan rating of HCV infected patients. Keywords: Hepatitis C, Fibrosis, Liver, Aspartate aminostransferase (AST)
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Ullah, Rehmat, Kapeel Raja, Sohail Hussain, Zille Huma, Farhana Mukhtar, and Khalil Ur Rehman. "Analyze the Efficacy of the AST to Platelet Ratio (APRI) and the Fibronectin Fibrinolysis-4 (FIB-4) using Transient Elastography (FIB-SCAN) in Patients with Chronic Hepatitis C." Pakistan Journal of Medical and Health Sciences 16, no. 8 (August 31, 2022): 400–402. http://dx.doi.org/10.53350/pjmhs22168400.
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Objective: The purpose of this study was to compare the effectiveness of AST to platelet index (APRI) and FIB-4 with transient elastography, also known as fibro scan, in patients who suffered from chronic Hepatitis C. Study Design: Retro-prospective/ Cross-sectional Place & Duration: Khalifa Gulnawaz Teaching Hospital Bannu Pakistan, From August, 2021 to May, 2022. Material and Methods: This research included 360 men and women. After obtaining written consent, detailed demographics of all cases were recorded. In 360 HCV infected individuals, the diagnosis comprised CBC, LFTs, ELISA, PCR, and fibro. We compared AST, apric, FIB-4, and fibro scans for detecting HCV fibrosis progression. SPSS 22.0 was used to analyze all data. Results: There were majority males 220 (61.1%) and 140 (38.9%) females. 85 (23.6%) had age 20-30 years 180 (50%) cases had age 31-40 years and 95 (26.4%) patients had age >40 years. We found that 210 (58.3%) patients had fibrosis stage F0-F1, F2 stage was in 28 (7.8%) cases, F3 stage was in 52 (14.4%) patients and F4 stage in 70 (19.4%) cases. Among 360cases, genotype 3a was found in 260 (72.2%) patients, genotype 1b in 70 (20.8%) cases and genotyped 1a in 30 (8.3%) cases. Conclusion: In this study, we found that the AST to Platelet Index (APRI) and FIB 4 were able to successfully identify among cirrhotic and non-cirrhotic phases among HCV-infected patients. Keywords: Liver, Hepatitis C, Fibrosis
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Jiao, Chengge, Fang Zhang, Ruijie Shao, Chris Stephens, and Tim Nunney. "(Digital Presentation) Chemical Workflow of Characterizing Lithium-Ion Battery Electrodes: From SEM-Eds PCA and FIB Tof-SIMS Analysis to XPS." ECS Meeting Abstracts MA2023-02, no. 8 (December 22, 2023): 3379. http://dx.doi.org/10.1149/ma2023-0283379mtgabs.
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Lithium-ion batteries (LIBs) have revolutionized energy storage technology, with cathode materials playing a pivotal role in their performance. Nickel Manganese Cobalt (NMC) cathodes are essential components, where the nickel (Ni) content profoundly influences battery capacity and cycle time. Traditional methods, such as SEM-EDS element mapping, have limitations in resolving distinct NMC phases. To address this, we employ Principal Component Analysis (PCA) phase mapping, unveiling intricate NMC phase distinctions. Furthermore, we investigate into the crucial aspect of lithium-ion distribution within the cathode using Focused Ion Beam Time-of-Flight Secondary Ion Mass Spectrometry (FIB ToF-SIMS). This technique, when integrated a compact SIMS detector with a DualBeam microscope, provides invaluable insights into lithiation and delithiation processes regarding to battery cycling. Our finding on an electrode revealing that discharged cathodes exhibit 7Li+ signal 3.5 times higher than charged cathodes. The SIMS lithium mapping results illustrated the trapped lithium ions in charged cathodes, as well as the uniform return of lithium ions to cathode oxide material upon discharge. Additionally, our results highlight the preservation of oxygen levels in cathode chemistry during charging and discharging, except for its involvement in lithium intercalation. We also address the challenges associated with windowless EDS detectors for lithium detection based on published literatures. Expanding our investigations, we present novel results of FIB-SIMS at cryogenic conditions, unveiling the distribution of lithium and sodium in an anode electrode. Moreover, we illuminate disparities in lithium detection between room temperature and cryogenic temperature acquisitions, providing insights into the behaviour of slow-charged graphite anodes. In this abstract, we extend our presentation to include X-ray Photoelectron Spectroscopy (XPS) for the detection of organic and inorganic matter in battery electrodes. In summary, our work combines SEM-EDS PCA and FIB ToF-SIMS and XPS techniques to provide a comprehensive understanding of lithium-ion battery cathode, anode materials, contributing to advancements in energy storage technology. Keywords: Lithium-ion battery, EDS PCA phase mapping, FIB-ToF-SIMS, XPS, SEM-FIB Reference [1] Ali Eftekhari, Energy Storage Materials, Volume 7, April 2017, Pages 157-180. [2] Chengge Jiao, Lex Pillatsch, Johannes Mulders, David Wall, August 2019, Microscopy and Microanalysis 25(S2):876-877. [3] Mingwei Shang, Xi Chen, Junjie Niu, Cell Reports Physical Science 3, 100767, February 16, 2022 Figure 1
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Babichev A.V., Mikhailov D. A., Chistyakov D. V., Kolodeznyi E.S., Gladyshev A. G., Voznyuk G. V., Mitrofanov M. И., et al. "Study of the spatial characteristics of emission of surface-emitting ring quantum-cascade lasers." Semiconductors 56, no. 6 (2022): 436. http://dx.doi.org/10.21883/sc.2022.06.53547.9825.
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The results of studies of ring quantum-cascade lasers with surface emission due to a second-order grating formed in the top cladding layers are presented. Surface emission near 7.85 μm with a low threshold current density (3.8 kA/cm2), in comparison with ridge quantum-cascade lasers of the same cavity length is demonstrated. The results of measurements of the intensity distribution of the near and far fields at different pumping levels are presented. The estimated value of the angle of beam extraction relative to the surface normal is in the range (5.7-6.7)o. Keywords: ring cavity, grating, focused ion beam (FIB) etching, superlattices, quantum-cascade laser, epitaxy, indium phosphide.
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Tatarintsev A.A., Orlikovskiy N.A., Orlikovsaya N.G., Ozerova K.E., and Shahova Y.E. "Method for measuring the dielectrics charging potential under ion irradiation using shifting the bremsstrahlung edge." Technical Physics 92, no. 9 (2022): 1271. http://dx.doi.org/10.21883/tp.2022.09.54693.81-22.
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A method is proposed for measuring high-voltage charging potentials of dielectrics under ion irradiation by shifting the boundary of the bremsstrahlung X-ray spectrum. Since there is no bremsstrahlung output during Xe+ ion irradiation, it was proposed to use a probing electron beam to generate bremsstrahlung X-rays. To eliminate the effect of charge compensation on the surface, the value of the current of the probing probe of electrons was selected. The values of the equilibrium charging potentials of Al2O3 ceramics, Al2O3 sapphire, SiO2, and Teflon are obtained at different ion irradiation energies. The data obtained are compared with the results of spectrometric studies. Keywords: dielectric charging, ion irradiation, FIB-SEM, surface potential measurement.
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Wekesa, Clara, Rosalind Parkes-Ratanshi, Gregory D Kirk, Jim Aizire, and Ponsiano Ocama. "Indirect serum biomarkers perform sub optimally in screening for significant liver fibrosis among HIV-infected and uninfected adults in Uganda." African Health Sciences 22, no. 3 (October 28, 2022): 416–25. http://dx.doi.org/10.4314/ahs.v22i3.45.
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Introduction: Indirect serum bio-markers present an acceptable noninvasive and cheap alternative for screening of significant liver fibrosis (SLF). Evaluation of their use in resource limited settings is important to determine their utility.
Methods: We conducted a cross sectional study among 520 HIV infected and HIV uninfected adults attending care clinics in Kampala Uganda. Presence of SLF was determined using Fibroscan® liver stiffness measurement of ≥7.2KPa. The diagostic value of indirect serum bio-markers for diagnosis of SLF was evaluated using the area under the receiver operating characteristics curve (AUROC) using Fibroscan® as gold standard.
Results: Overall AUROC values for Age Platelet Index (API), Aspartate to Alanine Ratio (AAR), AST-to-Platelet Ratio Index (APRI), Fibrosis Index based on 4 Factors (FIB-4) and Gamma glutamyl transferase to Platelet Ratio Index (GPR) were 0.52, 0.49, 0.55, 0.55 and 0.54 respectively. Among HIV-infected participants AUROC values were slightly improved at predicting presence of SLF but still under 70%.
Conclusion: Despite APRI and FIB-4 being more likely to identify participants with SLF, the overall diagnostic value of all serum bio-markers was poor with and without stratification by HIV status. We recommend the use of Fibroscan® technology as more accurate non-invasive diagnostic method for screening of SLF.
Keywords: Liver fibrosis; serum bio-markers; Fibroscan®; HIV/AIDS; Sub Saharan Africa.
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Zanza, Alessio, Marco Seracchiani, Rodolfo Reda, Gabriele Miccoli, Luca Testarelli, and Dario Di Nardo. "Metallurgical Tests in Endodontics: A Narrative Review." Bioengineering 9, no. 1 (January 12, 2022): 30. http://dx.doi.org/10.3390/bioengineering9010030.
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Since there are no reviews of the literature on this theme, the aim of this narrative review is to summarize the metallurgical tests used in endodontics, pointing out their functional use and their pros and cons and giving readers a user-friendly guide to serve as an orientation aid in the plethora of metallurgical tests. With this purpose, a literature search for articles published between January 2001 and December 2021 was conducted, using the electronic database PubMed to collect all published articles regarding the metallurgical tests used in endodontics for the evaluation of NiTi rotary instruments. The search was conducted using the following keywords: “metallurgy”, “differential scanning calorimetry” (DSC), “X-ray diffraction” (XRD), “atomic force microscopy” (AFM), “energy-dispersive X-ray spectroscopy” (EDS), “focused ion beam analysis” (FIB) and “Auger electron spectroscopy” (AES) combined with the term “endodontics” or “NiTi rotary instruments”. Considering the inclusion and exclusion criteria, of the 248 articles found, only 81 were included in the narrative review. According to the results, more than 50% of the selected articles were published in one of the two most relevant journals in endodontics: International Endodontic Journal (22.2%) and Journal of Endodontics (29.6%). The most popular metallurgical test was DSC, with 43 related articles, followed by EDS (33 articles), AFM (22 articles) and XRD (21 articles). Few studies were conducted using other tests such as FIB (2 articles), micro-Raman spectroscopy (4 articles), metallographic analysis (7 articles) and Auger electron spectroscopy (2 articles).
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Tariq, Sadia, Faiza Saleem, and Farhan Shahzad. "DOES DIGITAL FINANCE AND FINANCIAL INCLUSION STRENGTHEN ENVIRONMENTAL SUSTAINABILITY: EVIDENCE FROM ASIA." Pakistan Journal of Social Research 04, no. 04 (December 31, 2022): 876–83. http://dx.doi.org/10.52567/pjsr.v4i04.847.
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Digital finance and financial inclusion are considered to be significant development strategies in many economies. Promoting both of these strategies helps increase environmental sustainability. Access to financing improves people's ability to engage in economic activities that degrade the environment. The goal of this research is to look at the impact of digital finance and financial inclusion on environmental sustainability in a few emerging Asian countries. From 2015 through 2021, the research study used quantitative secondary annual data acquired from World Development Indicators provided by the World Bank. The study's dependent variable is environmental sustainability, as measured by carbon dioxide emissions (CO2-EMS), and the independent variables are mobile money transactions (MMT), automated teller machines (ATMs), financial institution’s branches (FIB), and deposit accounts (DACC). The study also used some control variables, like population growth (POPG), industrialization (IND), and financial literacy (FL). The panel data from ten Asian nations was analyzed by using a fixed- or random-effects model. The outcomes revealed that mobile money transactions (MMT), automated teller machines (ATMs), and financial institution’s branches (FIB) have a significant negative relationship with CO2-EMS, whereas deposit accounts (DACC) have a significant positive association with CO2-EMS. The study has significant implications for countries seeking to improve their overall energy efficiency, thereby reducing environmental degradation. Countries should modernize technology and implement improved environmental practices to help improve environmental sustainability. In order to attain economic success and environmental sustainability, policymakers should develop policies that increase digital financial inclusion. Keywords: Digital finance, financial inclusion, mobile money transactions, financial literacy, environmental sustainability.
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Covolan, Almir Rogério, Tatiane Cristovam Ferreira, and Edilson Ramos Gomes. "INFLUÊNCIA DO AMBIENTE PROTEGIDO NO CULTIVO DA ALFACE EM ADUBAÇÃO ORGÂNICA E CONVENCIONAL." ENERGIA NA AGRICULTURA 37, no. 1 (March 30, 2022): 76–84. http://dx.doi.org/10.17224/energagric.2022v37n1p76-84.
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INFLUÊNCIA DO AMBIENTE PROTEGIDO NO CULTIVO DA ALFACE EM ADUBAÇÃO ORGÂNICA E CONVENCIONAL ALMIR ROGÉRIO COVOLAN1, TATIANE CRISTOVAM FERREIRA2, EDILSON RAMOS GOMES3 1 Discente do curso de Agronomia - FIB - Faculdades Integradas de Bauru – FIB; Rua José Santiago, Quadra 15, Bauru -SP, 17056-120. almir.covolan@hotmail.com. 2 Doutoranda em Engenharia Agricola: Faculdade de Ciências Agronômicas – FCA/UNESP, Avenida Universitária, 3780, Botucatu-SP, 18610-034. tatiane.cristovam@unesp.br. 3 Professor Doutor do Curso de Agronomia - FIB - Faculdades Integradas de Bauru – FIB: Rua José Santiago, Quadra 15, Bauru -SP, 17056-120. edilsonevj@hotmail.com. RESUMO: O consumo de hortaliças no Brasil aumenta ano após ano, com ênfase nas folhosas. Assim, os aspectos climáticos estão entre os fatores que mais interferem em sua produção, bem como alterações na fisiologia da planta. Portanto, o objetivo do presente trabalho foi avaliar o efeito de diferentes tipos de ambientes protegidos em resposta a adubação mineral e orgânica na produção da alface crespa. O experimento foi conduzido na forma de um delineamento inteiramente casualizado (DIC), no esquema fatorial 3 x 2, onde os tratamentos foram T1: cultivo em ambiente com tela de sombreamento na cor preta com 50% sombreamento com adubação mineral e a orgânica; T2: cultivo em campo aberto com adubação mineral e a orgânica e T3: cultivo em ambiente em forma de túnel com cobertura de polietileno de 125 micras com adubação mineral e a orgânica. Na subparcela dois tipos de adubação (mineral e orgânica) com cinco repetições. As características coletadas foram: massa fresca e seca de parte aérea, caule e raiz, altura de planta, diâmetro de caule, volume de raiz, número de folhas, teores de macronutrientes foliar e produtividade. Pode-se concluir que os melhores resultados foram obtidos no ambiente de cultivo em túnel com cobertura de polietileno de 125 micras combinado com a adubação orgânica. Palavras-chaves: nutrição de plantas, Lactuca sativa L., cultivo protegido. THE INFLUENCE OF THE PROTECTED AMBIENT ON LETTUCE CULTIVATION UNDER ORGANIC AND CONVENTIONAL FERTILIZATION ABSTRACT: The consumption of vegetables in Brazil increases year after year, with emphasis on leafy vegetables. Thus, climatic aspects are among the factors that most interfere with its production, as well as changes in the physiology of the plant. Therefore, the objective of the present work was to evaluate the effect of different types of protected environments in response to mineral and organic fertilization on the production of curly lettuce. The experiment was carried out in a completely randomized design (DIC), in a 3 x 2 factorial scheme, where the treatments were T1: cultivation in an environment with a black shading screen with 50% shading with mineral and organic fertilizers; T2: cultivation in open field with mineral and organic fertilization and T3: cultivation in a tunnel-shaped environment with 125 micron polyethylene cover with mineral and organic fertilization. In the subplot two types of fertilization (mineral and organic) with five replications. The characteristics collected were: fresh and dry mass of aerial part, stem and root, plant height, stem diameter, root volume, number of leaves, foliar macronutrient contents and productivity. It can be concluded that the best results were obtained in the tunnel culture environment with a polyethylene cover of 125 microns combined with organic fertilization. Keywords: crop nutrition, Lactuca sativa L., protected cultivation.
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Asfuroglu-Kalkan, Emra Asfuroğlu-Kalkan, and Irfan Soykan. "Role of Non-Invasive Scoring Systems in Detecting Fibrosis in Chronic Hepatitis B." Klimik Dergisi/Klimik Journal 35, no. 3 (September 28, 2022): 164–70. http://dx.doi.org/10.36519/kd.2022.4338.
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Objectives: Chronic hepatitis is a clinical and pathological condition defined by etiological, clinical, and pathological aspects, in which inflammation in the liver continues for more than six months. Hepatitis B virus is one of the most important causes of etiology. Although liver biopsy is accepted as the gold standard test, there is a need to search for an alternative method due to the risk of complications, invasiveness, and cost. Our aim in this study was; to evaluate the predictive value of calculating fibrosis four scores (FIB -4), age platelet index (API), AST ALT ratio (AAR), AST platelet ratio index (APRI), Hui score, Goteburg University cirrhosis index (GUCI) indices in relation to liver biopsy in patients with chronic hepatitis B diagnosis who have not received any treatment before. Methods: The study included treatment-naive cases who underwent liver biopsy at Ankara University School of Medicine Hospitals Gastroenterology Clinics between March 2013 and November 2017 and at Ankara City Hospital Gastroenterology Clinic between 2019-2021. Non-invasive scores of the cases were evaluated simultaneously with liver biopsy. Results: A total of 159 patients, 45 (28.3%) female and 114 (71.7%) male, were included in our study. Eight non-invasive fibrosis markers were used, including APRI, FIB-4, AAR, API, CDS, Lok, GUCI, and Hui. GUCI and Hui non-invasive fibrosis markers were numerically superior to all other parameters in differentiating mild hepatitis from severe hepatitis and patients with cirrhosis, without cirrhosis. In the comparison of area under – receiver operating characteristic (AUROC) values using the Hanley-McNeal test to differentiate the cirrhosis patient from the non-cirrhosis patient, statistical superiority was found only against AAR and API (p<0.001, p<0.001). Conclusion: Although many markers were found successful in our study, AUC values were not significantly superior to each other, and we determined that they could not be an alternative to liver biopsy on their own. Keywords: chronic hepatitis B, fibrosis, liver
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Pourrahmani, Hossein, Hamza Moussaoui, Milad Hosseini, Majid Siavashi, Lucie Navratilova, Mardit Matian, and Jan Van herle. "Fluid Flow in the Gas Diffusion Layer Using Computational Fluid Dynamics and Microscopy Techniques." ECS Meeting Abstracts MA2023-01, no. 24 (August 28, 2023): 1595. http://dx.doi.org/10.1149/ma2023-01241595mtgabs.
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The utilization of a proton exchange membrane fuel cell (PEMFC) as an energy provider using hydrogen as a fuel has increased drastically. The reasons are the current limitation of fossil fuel-based devices, pollutants-free, high efficiency, and zero-carbon emission. The life-cycle assessment results of this type of fuel cell have also indicated the lowest contribution to global warming, human health, and resource scarcity in comparison to other types of fuel cells. In this regard, improving the performance of PEMFC is of importance. As an important component of the PEMFC, the gas diffusion layer (GDL) transports the gas reactants to the catalyst layer with the least electrical resistance. The GDL is often made of carbon fibers and should have a surface with good electrical contact and hydrophobic properties to facilitate the water removal. Remaining water in the GDL will result in difficulties during the cold-start and enhances the degradation of this layer. It is believed that the water removal of the GDL has a direct relationship with the capillary pressure, which is strongly linked to the GDL’s microstructure and wettability. However, further investigations can be done once a comprehensive simulation model is developed to monitor the changes in the GDL liquid removal by the effective parameters. In this regard, the Focused Ion Beam-Scanning Electron Microscopy (FIB-SEM) has been used to perform three-dimensional cross-section imaging of the GDL. The GDL samples are provided by Freudenberg in which the Microporous layer (MPL) is impregnated into the GDL. The average porosity of this sample is in the range of 75% while having the in-plane gas permeability of 2.4 under a compressive stress of 1 MPa. The utilized resin for FIB-SEM imaging is a mixture of Epoxy embedding medium (diglycidyl ether of bisphenol – A) with two different hardeners DDSA (2-Dodecenylsuccinic anhydride) and MNA (Methylnadic anhydride), which will be mixed with DPM – 30 [2,4,6 – Tris(dimethylaminomethyl)phenol] as the accelerator, all provided by Sigma Aldrich. After the preparation of the resin, 0.4 gr of Cobalt (II) acetylacetonate nanoparticles (supported by Sigma Aldrich) were added to 7.14 ml of the resin to improve the contrast of the images. The samples were impregnated with the resin under vacuum to be pressurized (3 MPa) for 20 minutes, and afterward, heated in an oven at 60℃ for 12 hours. The surfaces for analyses were cut by a diamond wire, polished by abrasive plates down to 0.1 and gold coated (20nm). FIB-SEM acquisition consisted of the polishing of cross-sections with a focused ion beam (LMIS Ga+ source) at 30 keV and 1 nA (Zeiss Crossbeam 540), followed by imaging with an electron beam at acceleration voltages of 1.0, 3.0 kV. Milling and imaging were performed at a working distance of 5.2 mm and stage tilt of 54°, i.e., the coincidence point of the electron and ion beams. Once the three-dimensional cross-sections of the GDL are obtained, the segmentation and reconstruction will be made to provide the needed geometry for fluid flow simulation and to calculate the microstructural properties. Fig. 1 shows the generated structure of the GDL after the segmentation and reconstruction of the cross-section images. The geometry will be then used to characterize the effective parameters of the thermal/water management of the PEMFC. This study can also be a valid reference for future computational fluid dynamic analyses in the GDL using the numerical modeling with the conservative equations or the Lattice Boltzmann modeling (LBM) with the kinetic and particle distribution equations. Keywords : Proton exchange membrane fuel cell (PEMFC); Gas Diffusion Layer (GDL); Focused Ion Beam- Scanning Electron Microscopy (FIB-SEM); Three-dimensional simulation; Lattice Boltzmann method (LBM) Figure 1
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Harahap, Olivia Feby, and Nurul Hidayah Nasution. "PEMANFAATAN MEDIA SOSIAL DALAM MENINGKATKAN LITERASI KEMAMPUAN BAHASA INGGRIS KEPADA REMAJA." Jurnal Pengabdian Masyarakat Aufa (JPMA) 4, no. 3 (December 22, 2022): 212. http://dx.doi.org/10.51933/jpma.v4i3.943.
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Abstract
Millennials need English because the boundaries between countries are no longer visible. This makes us have to be able to communicate using international languages, and English is one of them. However, the impact of implementing the 2013 curriculum on reducing the number of hours for several subjects including English subjects reduced the effort to learn the language. Need a strategy to facilitate mastery of the language. Focusing on language skills such as speaking, writing, listening and reading is one way. Seeing the complex problem of mastering the language, students of SMPN 1 Angkola Barat need help to master English. This assistance is only temporary because after that students are expected to be able to independently make efforts to improve their language skills. These things are the focus of community service carried out by FIB Unsoed lecturers. Formal classes that cannot provide writing competence training are the main background for this service. Thus, the purpose of this service is to improve writing skills through English literacy activities. The methods used are lectures, posters and workshops. The result of this service is a collection of short story books with 18 stories in it, which is proof of the success of this service.
Keywords: writing, reading, literacy, book level
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Wadhwa, Mahesh Kumar, Daud Ghilzai, Ali Hyder Mugheri, Sania ., and Kamran Ali Memon. "Determine the Adverse Outcomes of Direct Antiviral Therapy in Patients with Hepatitis C Infection." Pakistan Journal of Medical and Health Sciences 16, no. 12 (December 31, 2022): 290–91. http://dx.doi.org/10.53350/pjmhs20221612290.
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Objective: To determine the outcome of direct antiviral therapy in patients with hepatitis C infection. Study Design: Prospective study Place and Duration of Study: Department of Gastroenterology, Chandka Medical College, Larkana from 1st July 2021 to 30th June 2022. Methodology: Two hundred hepatitis C patients after obtaining their informed consent were enrolled. Each patient was analyzed for phenotype and genotype of hepatitis C infection through polymerase chain reaction (PCR). The stage of cirrhosis was confirmed through the available of definition of liver biopsy interpretation. Non-invasive tests were also conducted for confirming the fibrotic stage. These tests included APRI, FIB-4 as well as transient-elastography. The patients selected for participation were between age group of 35-65years after taking informed written consent. The sustained viral response assessment was conducted through determining a 12-week viral load after the initiation of treatment of direct acting antivirals as per the available protocols through hepatic association. Results: The mean age of the patients were 57±9.5 years with majority being males such as 60%. The majority of the cases were having genotype 3 followed by genotype 1. Within the total cases the adverse outcomes were noticed in 5% of the cases Conclusion: These drug regimens show effectiveness in low income countries and proved to be safe Sofosbuvir-based drug choice for hepatitis C treatment. Keywords: Genotyping, Antiviral drugs, Regimens, Prevalence, Efficacy
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Dwiyantoro, Dwiyantoro, Nining Sudiar, and Vita Amelia. "Evaluasi Penggunaan E-DDC dalam Mengklasifikasi Bahan Pustaka di Lingkungan Perpustakaan Universitas Lancang Kuning." Jurnal Pustaka Budaya 5, no. 1 (February 26, 2018): 7–18. http://dx.doi.org/10.31849/pb.v5i1.1457.
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Abstrak
Tujuan penelitian ini untuk mengevaluasi penggunaan e-DDC dalam mengklasifikasi bahan pustaka di lingkungan Perpustakaan Universitas Lancang Kuning. Jenis Penelitian ini adalah deskriptif kuantitatif. Penelitian ini dilakukan dari bulan Februari 2016 sampai April 2016. Subjek penelitian ini adalah nomor klasifikasi yang ada di UPT Perpustakaan Unilak dengan jumlah sampel 97 judul, Perpustakaan Fakultas Ilmu Budaya (FIB) dengan jumlah sampel 88 judul, Perpustakaan Fakultas Ilmu Administrasi (FIA) dengan jumlah sampel 94 judul, Perpustakaan Fakultas Hukum dengan jumlah sempel 96 judul. Dari hasil penelitian menunjukkan bahwa dari ke empat Perpustakaan yang di jadikan sampel perpustakaan yang memiliki data persentase 21-40% dengan ketidak sesuaian nomor klasifikasi dapat dikatakan rendah yaitu perpustakaan Fakultas Ilmu Administrasi (FIA) sebesar (21,27%) dan Perpustakaan Fakultas Ilmu Budaya (FIB) dengan persentase sebesar (22,72%). Sedangkan untuk perpustakaan yang memiliki ketidak sesuaian nomor klasifikasi dengan data persentase 41-60% dapat dikatakan sedang yaitu UPT Perpustakaan Unilak sebesar (41,23%), dan Perpustakaan Fakultas Hukum dengan persentase sebesar (45,83%).
Kata Kunci: Evaluasi Penggunaan e-DDC di Perpustakaan Lingkungan Universitas Lancang Kuning
Abstract
This study titled Evaluation of Use of E-DDC classifying library materials in the environment Lancang Kuning University Library. The purpose of this study to evaluate the use of e-DDC classifying library materials in the Lancang Kuning University Library. This research type is descriptive quantitative. This research was conducted on the month in February 2016 to May 2016. The subject of this research is the classification number contained in the Library Unit Unilak with a sample of 97 titles, the Library FIB with a sample of 88 titles, the FIA Library with a sample of 94 titles, the Law Library with a number semple 96 titles. The results showed that of the four library made in sample libraries with 21-40% percentage compliance with classification number can be said to be low at the library FIA for (21.27%) and FIB Library with a percentage of (22.72 %). As for the library that has a non classification number with a percentage of 41-60% of data can be said to be that of Unilak Library Unit (41.23%), and the Law Library with a percentage of (45.83%).
Keyword : The use of e - DDC evaluation at Community Library Lancang Kuning University
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Waseem, Muhammad Azhar, Sonia Saleem, Muhammad Yasir Younis, Saad Hassan Khan, Sadia Jabbar, and Asmat Ullah. "Comparison of NAFLD Fibrosis Score with Shear Wave Elastograpghy to Identify Liver Fibrosis in Patients with NAFLD." Pakistan Journal of Medical and Health Sciences 16, no. 2 (February 26, 2022): 914–18. http://dx.doi.org/10.53350/pjmhs22162914.
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Introduction: NAFLD is diagnosed by non-invasive and invasive methods. Non-invasive methods include NAFLD fibrosis score, AST/Platelets ratio index (APRI), FIB-4 score, BARD score, USG abdomen, Fibro-scan liver, transient elastography, MRI and MRI with elastography (MRE). Objectives: To determine the frequency of different grades of fibrosis on shear wave elastography in patients with NAFLD and to compare mean NAFLD fibrosis score in different stages of liver fibrosis. Study design: Cross-sectional study. Study duration: 26th February 2021 to 25th August 2021. Settings: Department of Gastroenterology SZH, Lahore. Materials & Methods: A total of 197 patients with NAFLD of age 18-70 years were included. Patients with hepatitis B and/or C infection, hemochromatosis, Wilson’s disease, Alpha 1 antitrypsin deficiency, celiac disease, autoimmune hepatitis, primary biliary cholangitis, primary sclerosing cholangitis were excluded. Hepatic ultrasonographic examination was performed. Blood samples were taken in a 10cc BD syringe and were sent for assessment of PT/INR, LFTs including albumin, platelets count and fasting or random glucose level. Reports were assessed and the NAFLD fibrosis scores were calculated. Shearwave elastography was used as gold standard test for the detection and confirmation of liver fibrosis; and results were compared. Results: Age range in this study was from 18 to 70 years with mean age of 49.30 ± 12.05 years. Majority of the patients 145 (73.60%) were between 41 to 70 years of age. Out of these 197 patients, 80 (40.61%) were males and 117 (59.39%) were females with male to female ratio of 1:1.5. In this study, frequency of different grades of fibrosis on shear wave elastography in patients with NAFLD was as follows; F0 in 44 (22.34%), F1 in 89 (45.18%), F2 in 31 (15.74%), F3 in 22 (11.17%) and F4 in 11 (5.58%) patients. Conclusion: This study concluded that non-invasive NAFLD fibrosis score should be used to rule out the presence or absence of liver fibrosis by using simple clinical and biochemical variables and thus avoid the need of liver biopsy. Keywords: Non-Alcoholic Fatty Liver Disease, Fibrosis Score, Shearwave Elastography
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Firsov, P., and Bachar Ali Kaafarani. "THEORETICAL ASPECTS OF AVOIDING DELAMINATION OF COMPOSITE MATERIALS DURING STRENGTHENING OF REINFORCED CONCRETE STRUCTURES." Municipal economy of cities 1, no. 175 (April 3, 2023): 32–38. http://dx.doi.org/10.33042/2522-1809-2023-1-175-32-38.
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The scientific work is devoted to the improvement of the calculation methodology of reinforced concrete elements, using verification of the FRP delamination prevention, during structures strengthening with a system of composite materials (SCM) from various fibers types. During strengthening of reinforced concrete elements with composite material systems, the role of adhesion between concrete and FRP is of great importance due to the fragility of the failure mechanism due to delamination (loss of adhesion). The adhesion strength is generally much higher than the tensile strength of the concrete, so delamination always starts in concrete itself with the separation of FRP layer of different thickness. According to the load-bearing capacity requirements, such a failure mechanism should not precede the failure of the strengthened element during bending or shear. To solve the problem of possible strengthening delamination of composite materials systems, it is necessary to consider different failure modes of FRP. Due to imperfection of domestic building codes, a detailed analysis of the solution to the problem of FRP delamination was carried out in accordance with the recommendations of a number of foreign regulatory documents (ACI, CNR, FIB). The main failure modes, with subsequent initiation of delamination of FRP material from concrete base, are systematized, namely: FRP delamination due to surface irregularities, separation of FRP due to shear cracks, longitudinal shear stresses in the yield zone, excessive deformations in FRP material (FRP rupture), longitudinal shear stresses near the FRP edges, failure in anchoring (fixing) zone of FRP material. Six criterions are proposed that need to be verified during design of structures strengthening systems with FRP materials. During formulation of specified criterions, the main theoretical aspects necessary for application in structural calculations of the studied connection are given. The results of research can be used in future during the design of structures joints strengthening with systems of composite materials based on carbon fibers, glass, aramid. Keywords: system of composite materials, external reinforcement, FRP strengthening, reinforced concrete, failure mode, calculation, delamination.
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Pirogova, I. Yu, and I. V. Ufimtseva. "Clinical study of the URSosan Forte in patients with non-alcoholic fatty liver disease and cholelithiasis (KURS study)." Russian Medical Inquiry 6, no. 5 (2022): 213–20. http://dx.doi.org/10.32364/2587-6821-2022-6-5-213-220.
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Aim: to evaluate the effect of ursodeoxycholic acid (UDCA) on hepatic fibrosis and steatosis, dyslipidemia, carbohydrate metabolism, and litholysis of cholesterol gallstones in patients with a combination of non-alcoholic fatty liver disease (NAFLD) and gallstone disease (GD). Patients and Methods: a prospective monocenter study was conducted, which included patients with NAFLD and GD at the age of 19 to 65 years. The diagnosis was established on the basis of clinical, laboratory, ultrasound and radiological data. The nature and incidence of comorbid pathology were assessed. The degree of hepatic fibrosis and steatosis was determined according to the abdominal MSCT and serum tests of liver fibrosis (FIB 4, APRI) and hepatic steatosis (FLI), as well as liver elastography. All patients received UDCA at a dose of 15 mg/kg for 6 months. Results: 85 patients were included in the study, 59 (70%) of them were female, the mean age was 49.3±9 years. Gallstones of low density (up to 75 HU) were detected in 45 (52%) patients who made up the group 1, of high density (75–120 HU) — in 40 (48%) patients included in the group 2. 42 (49%) patients had comorbidity. In group 2, comorbid pathology was significantly more common and the degree of hepatic steatosis and fibrosis was higher. During treatment with UDCA, the positive trend in group 1 was expressed in a significant decrease in the gallstone density and size, normalization of liver density, cytolysis and cholestasis indicators, improvement of carbohydrate metabolism, and regression of hepatic steatosis according to MSCT and elastography. In group 2, there was a decrease in bile density and gallstone size according to MSCT, as well as a positive trend of lipidogram, HOMA-IR index, hepatic density and steatosis according to MSCT and elastography.Conclusion: the use of UDCA in patients with NAFLD and GD as pathogenetic therapy has a positive effect on hepatic fibrosis and steatosis, dyslipidemia, carbohydrate metabolism, and provides litholysis of cholesterol stones, mainly with a density of less than 75 HU. KEYWORDS: comorbidity, non-alcoholic fatty liver disease, cholelithiasis, cholesterol stones, litholysis, hepatic steatosis. FOR CITATION: Pirogova I.Yu., Ufimtseva I.V. Clinical study of the URSosan Forte in patients with non-alcoholic fatty liver disease and cholelithiasis (KURS study). Russian Medical Inquiry. 2022;6(5):213–220 (in Russ.). DOI: 10.32364/2587-6821-2022-6-5-213-220.
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Mainnah, Muth, Diniah, and Budhi Hascaryo Iskandar. "PERPADUAN SERAT DAUN NANAS (ANANAS COMOSUS) DAN KITOSAN SEBAGAI MATERIAL ALAT PENANGKAPAN IKAN RAMAH LINGKUNGAN (Combination of Pineapple Leaf Fiber and Chitosan for Eco-Friendly Fishing Gear Materials)." Marine Fisheries : Journal of Marine Fisheries Technology and Management 7, no. 2 (November 16, 2016): 149. http://dx.doi.org/10.29244/jmf.7.2.149-159.
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<p><strong>ABSTRACT</strong></p><p>The utilization of pineapple leaf materialfiber for an alternative fishing gear is a step of development to create eco-friendly fishing gear material. The pineapple leaf fib er was observed based on mechanical (breaking strength and elongation value) and physical characteristics (water contents and specific weight) to learn about force of its fiber as natural material for the fishing gear. There were two methods used in this study, such as concentrates factor and soaking time in chitosan. Chitosan concentrates and soaking times in respectively were 1, 1.5, 2% and 15, 30, 45 minutes. The test of mechanical and physical characteristic had been done in Engineering and Design of Wood Building Laboratory, Department of Engineering, Forest Product, Forestry Faculty, Bogor Agricultural University, then for the breaking strength and elongation value used Universal Testing Machine (UTM). The data were analyzed by Completely Randomize Factorial Design (CRFD). The results showed that pineapple leaf fiber consist of 1.095% of water contents and 1.005 for specific weight. Statistical analysis proved that breaking strength value of pineapple leaf fibers was affected by soaking time in chitosan. The best result of the breaking strength test was when the fiber soaked in chitosan with concentrate 1 % during 45 minutes with amount of breaking strength and elongation 34.84 kgf and 0.60 mm.</p><p>Keywords: breaking strength, chitosan, elongation, pineapple leaf fiber</p><p> </p><p><strong>ABSTRAK</strong><br /> Pemanfaatan serat daun nanas untuk bahan alat penangkapan ikan merupakan langkah pengembangan material yang ramah lingkungan. Serat daun nanas tersebutdiamati berdasarkan sifat fisis (kadar air dan berat jenis) dan mekanis (kekuatan putus dan kemuluran serat) yang ditujukan untuk mengetahui kekuatan serat sebagai material alami untuk alat penangkapan ikan. Metode yang digunakan terdiri dari dua faktor, yaitu faktor konsentrasi dan lama pencelupan dalam kitosan. Konsentrasi kitosan yang digunakan yaitu 1, 1,5 dan 2% dan lama pencelupan dalam kitosan 15, 30 dan 45 menit.Pengujian sifat fisis dan mekanis dilakukan di Laboratorium Rekayasa dan Desain Bangunan Kayu, Departemen Teknik Hasil Hutan, Fakultas Kehutanan, Institut Pertanian Bogor, lalu untuk kekuatan putus dan kemuluran serat menggunakan Universal Testing Machine (UTM). Data dianalisis menggunakan Rancangan Acak Lengkap Faktorial (RALF). Hasil menunjukan bahwa serat daun nanas memiliki kadar air dan berat jenis rata-rata 1,095% dan 1,005. Analisis statistik membuktikan bahwa terdapat pengaruh lama pencelupan serat di dalam kitosan terhadap kekuatan putus serat daun nanas, uji kekuatan putus dengan perlakuan terbaik yang diberikan terhadap serat daun nanas, yaitu serat nanas yang direndam dalam kitosan 1% selama 45 menit dengan nilai kekuatan putus sebesar 34,84 kgf dan kemuluran 0,60 mm.</p><p>Kata kunci: kekuatan putus, kitosan, kemuluran, serat daun nanas</p>
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MacLaurin, Cindy Lee, Jack Martin Miller, and Mary Frances Richardson. "Synthesis and fast atom bombardment mass spectrometry of the coordination complexes of the ligand 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane." Canadian Journal of Chemistry 67, no. 5 (May 1, 1989): 797–803. http://dx.doi.org/10.1139/v89-121.
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Metal complexes containing the ligand 5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazatetradecane were synthesized and characterized using electron impact (EI) and fast atom bombardment (FAB). The FAB mass spectra were obtained in positive and negative ion mode. FAB in the positive ion mode proved to be the most successful technique for the identification of these compounds. The majority of the FAB spectra obtained were structurally informative, although not all showed molecular (M+) or quasimolecular ([M + H]+) ions. The fragmentations observed were characteristic of the ligands and the metal, and were interpreted based on the chemical and spectroscopic properties of these compounds. Keywords: FAB mass spectroscopy, tetraazacyclotetradecane complexes.
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Hassan, Md Amirul, Suraya Akhter, and Md Shahjahan. "Current population-based public health workforces in Bangladesh." Bangladesh Medical Research Council Bulletin 35, no. 3 (February 11, 2010): 112–13. http://dx.doi.org/10.3329/bmrcb.v35i3.4082.
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Ashrafunnessa, Shahla Khatun, Mohammad Nazrul Islam, and M. H. Rashid. "Seroprevalence of cytomegalovirus antibody in antenatal population in Bangladesh." Bangladesh Medical Research Council Bulletin 35, no. 3 (February 11, 2010): 110–12. http://dx.doi.org/10.3329/bmrcb.v35i3.4081.
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Hoque, Rezwanul, Zerzina Rahman, Sabrina Sharmeen Husain, Mostafa Nuruzzaman, Md Alauddin, and Ashia Ali. "Safety and efficacy of atrial septal defect closure on normothermic on-pump beating heart." Bangladesh Medical Research Council Bulletin 35, no. 3 (February 11, 2010): 113–16. http://dx.doi.org/10.3329/bmrcb.v35i3.4083.
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Amin, Shofia. "Minat, Persepsi dan Harapan Mahasiswa Baru Dalam Memilih FEB Unja." Jurnal Manajemen dan Bisnis Indonesia 5, no. 1 (October 1, 2017): 1–11. http://dx.doi.org/10.31843/jmbi.v5i1.135.
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Tujuan penelitian ini adalah (1) Untuk mengeksplorasi faktor-faktor yang mendorong minat mahasiswa baru memilih FEB Unja, (2) Untuk mengeksplorasi persepsi mahasiswa terhadap FEB Unja sebelum mereka diterima dan (3) Untuk mengeksplorasi harapan mahasiswa setelah diwisuda nanti. Dengan menggunakan pendekatan kualitatif, pengumpulan data dilakukan melalui teknik wawancara yang mendalam terhadap 24 orang mahasiswa baru angkatan 2016 yang mewakili jurusan Manajemen, Ilmu Ekonomi, Akuntansi dan Ekonomi Islam masing-masing melalui jalur seleksi SNMPTN, SMBPTN dan UMB. Hasil penelitian menunjukkan bahwa mayoritas mahasiswa yang menjadi responden dalam penelitian ini memilih FEB Unja karena minat yang berasal dari sendiri, mereka berpersepsi bahwa FEB akan memberikan lebih banyak peluang kerja dibanding fakultas lain dan mereka berharap setelah tamat nanti mayoritas ingin bekerja di bank dan menjadi entrepreneur.
Keywords: minat, perseps, harapan, FEB
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Metar, Manas. "Finite Element Analysis of F1 Halo Safety Structure." International Journal for Research in Applied Science and Engineering Technology 9, no. 12 (December 31, 2021): 1686–89. http://dx.doi.org/10.22214/ijraset.2021.39604.
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Abstract: The Federation Internationale de L’Autobile (FIA) has been working on improving safety of drivers in open wheel racing series. Numerous incidents caused serious impacts on drivers’ lives. The car-to-car collision, car to environment collision and injuries due to flying debris are common threats to these drivers. In 2016 the introduction of Halo surrounding the cockpit was appreciated by the FIA. The following study includes the analysis of this Halo system using Finite Element Analysis (FEA). The dynamic, static and modal analysis is carried out with the help of Simscale software and the results obtained showed the values under permissible levels. Keywords: Finite Element Analysis, Static Analysis, Modal Analysis, Dynamic Analysis, F1 Halo, FIA.
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Andriani, Lina Saparlina. "IMPLEMENTASI PEMBELAJARAN DARING PADA MASA PANDEMI COVID-19 DI FAKULTAS EKONOMI DAN BISNIS UIN SYARIF HIDAYATULLAH JAKARTA." Kompetensi 6, no. 2 (December 30, 2021): 79–84. http://dx.doi.org/10.47655/kompetensi.v6i2.13.
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One of the impacts of the Covid-19 pandemic on the education sector is the change from the face-to-face learning system to a distance learning system (online) at all levels of education. This study tries to explain how the implementation of online learning during the Covid-19 Pandemic at the Faculty of Economics and Business (FEB) UIN Syarif Hidayatullah Jakarta.This research is a quantitative descriptive study, with techniques of data collection using surveys through questionnaires. Questionnaires were distributed through Google Form to 519 respondents. The focus of this research includes: 1) How is the participation of FEB students in taking online lectures, 2) The extent to which FEB lecturers are committed to conducting online lectures, and 3) what obstacles are faced in implementing online lectures. The results of this study indicate that FEB student participation in online learning is very good, this is evidenced by as many as 99% of respondents stating that they take online lectures with the majority using the zoom meeting platform. On the other hand, FEB lecturers also have a very high commitment in carrying out online lectures, this is illustrated by the lecturer’s obedience in following the syllabus, the schedule and duration of the lectures that have been set. Meanwhile, the most common obstacle in the online learning process at FEB is the unstable internet network. Keywords: Learning, Online, Covid-19
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Suarningsih, Ni Luh Ayu, and Ni Ketut Rasmini. "Pendidikan, Lingkungan Keluarga dan Penggunaan Instagram terhadap Minat Berwirausaha Mahasiswa." E-Jurnal Akuntansi 31, no. 2 (February 22, 2021): 438. http://dx.doi.org/10.24843/eja.2021.v31.i02.p14.
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This study aims to obtain empirical evidence of the effect of accounting education, entrepreneurship education, family environment and the use of Instagram on entrepreneurial interest in undergraduate accounting students of FEB Unud. The analysis technique used is multiple linear regression analysis techniques with the method of determining the sample using purposive sampling. Data collection was done by distributing questionnaires. The sample in the study were 257 respondents. The results of this study indicate that accounting education and entrepreneurship education have a positive and insignificant effect, while the family environment and use of Instagram have a significant positive effect on the interest in entrepreneurship in the undergraduate accounting study program of FEB Unud.
Keywords: Education; Family Environment; Instagram; Entrepreneurial.
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Bertrand, M. J., V. Benham, R. St-Louis, and M. J. Evans. "Continuous flow fast atom bombardment mass spectrometry of mononucleotides and their metal complexes." Canadian Journal of Chemistry 67, no. 5 (May 1, 1989): 910–20. http://dx.doi.org/10.1139/v89-140.
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The mass spectra of mononucleotides and their metal adducts Na, K, Mg, Ca, Ni, Co, Cu, and Zn of guanosine 5′-monophosphate (5′-GMP) as well as H, Na, and Mg of adenosine 5′-monophosphate (5′-AMP) and H and Ni of inosine 5′-monophosphate (5′-IMP) have been obtained in low concentrations of matrix in water using continuous-flow fast atom bombardment. The results indicate that this technique is suitable for the analysis of these complexes in aqueous media and yields spectra that are highly characteristic of the compounds analyzed. Parent-molecular ions and structurally significant fragment ions are observed for all compounds studied and the different binding sites for the metal on the nucleotides can be isolated from the fragment ions. Experimental parameters influencing the quality of the spectra such as flow rate, matrix concentration, matrix nature, and analyte concentration have been studied and optimized. For the thirteen compounds studied, it appears that continuous-flow FAB is superior to conventional FAB and that good quality spectra can be obtained with as little as 0.5% of added matrix thus minimizing spectral interferences. Keywords: continuous flow FAB, FAB MS, mass spectrometry, nucleotides, metal-nucleotides.
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Il Maknuun, Luk luk, Majariana Krisanti, and Yusli Wardiatno. "Sensitivitas dan Kelayakan Indeks Biotik Menggunakan Makroavertebrata untuk Menentukan Status Kesehatan Sungai." Jurnal Ilmu Pertanian Indonesia 26, no. 1 (January 29, 2021): 151–58. http://dx.doi.org/10.18343/jipi.26.1.151.
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Water-quality monitoring using macroinvertebrates has been developed by several countries to determine their water qualities. Meanwhile in Indonesia, water quality monitoring has not been developed to adapt to Indonesia’s natural conditions. Some researchers use the existing biotic indices such as FBI, LQI, SIGNAL, and others. Therefore, this study aims to determine the status of water quality using several biotic indices and to compare the sensitivity and feasibility of indices on monitoring activities using simple matrix and Pearson correlation test. The interpretation results of FBI, LQI, and Singscore to determine water quality on each station in Brantas, Opak, Progo, and Cileungsi Rivers were different. The Pearson’s correlations test showed that the sensitivities are different between rivers. Those results are affected by the river conditions and also the activities around the rivers which release the pollution into the river. The FBI index showed the greatest score number of sensitivities among the other indexes.
Keywords: macroinvertebrate, monitoring, river, sensitivity
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Kholifa, Mulik, Tri Mulyono, and Yeni Maulidah Muflihah. "Simultaneous Determination of Magnesium (Mg2+) and Ammonium (NH4+) by Flow Injection Analysis." Jurnal ILMU DASAR 19, no. 1 (February 28, 2018): 1. http://dx.doi.org/10.19184/jid.v19i1.5483.
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An automatic method for the simultaneous determination of magnesium and ammoniun by flow injection analysis is described. This analysis used two detectors, potentiometry and spectrophotometry, for the determination of magnesium and ammonium simultaneously. Potentiometric detectors are used to detect ammonium ions, whereas spectrophotometer detectors are used to detect the presence of magnesium ions. The performance of the FIA system includes linear range linearity, limit of detection, sensitivity, reproducibility and recovery test. Spectrophotometry FIA showed good performance with several criteria of linearity with regression value of 0.9918, the detection limit of 0.06 ppm, a sensitivity of 0.0115, repeatability of less than 2% and the percent recovery of 91,6%. While potentiometric FIA showed th performance with several criteria of linearity with regression value of 0.9896, the detection limit of 0.17 ppm, a sensitivity of 40.747 mV per decade of concentration, repeatability of less than 2% and the percent recovery of 89,7%.
Keywords: Flow Injection Analysis, spectrophotometry, potensiometry, simultaneous
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Saraswathi, Mandapati, Jack M. Miller, and Tim R. B. Jones. "A study of the negative ion FABMS of tris(perfluorophenyl)phosphine and related compounds: matrix effects." Canadian Journal of Chemistry 73, no. 8 (August 1, 1995): 1321–28. http://dx.doi.org/10.1139/v95-163.
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The mass spectra of tris(perfluorophenyl)phosphine obtained under negative ion Fast Atom Bombardment conditions showed formation of an unusual ion at m/z 397 attributed to ((C6F5)2PO2)−. The matrix effects involved in this reaction are discussed. Negative ion FAB spectra of tris(perfluorophenyl)arsine and tris(perfluorophenyl)stibine are also reported. Keywords: pentafluorophenylphosphine, -arsine, -stibine; negative ion FABMS; matrix effects.
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Martinez Muñoz, Enrique, Arturo Sanchez Sanchez, Francisco Espinoza Morales, and Cruz García Lirios. "Structural equation model of entrepreneurship in downtown Mexico during the COVID-19 era." Frontiers in Management and Business 3, no. 1 (2022): 194–98. http://dx.doi.org/10.25082/fmb.2022.01.005.
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Entrepreneurship is a construct that has been measured from two main dimensions: resource optimization and process innovation. The objective of this work is to corroborate the dual structure of entrepreneurship. An exploratory, transversal and psychometric work was carried out with a selection of sources indexed to national repositories. The findings were selected considering the period from the pandemic from December 2019 to April 2022, as well as the keywords of entrepreneurship, innovation and optimization. A factorial structure of two components was found that explained the highest percentage of variance. In relation to the state of the art, it is recommended to include the dimension of opportunism to increase the explained variance and adjust the model to the most recent studies that report a third dimension related to the opportunities of the health and economic crisis.
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Miller, Jack M., and Kesagapillai Balasanmugam. "Characterization of metal complexes of 1,10-phenanthroline, 2,2′-bipyridine, and their derivatives by fast atom bombardment mass spectrometry." Canadian Journal of Chemistry 67, no. 9 (September 1, 1989): 1496–500. http://dx.doi.org/10.1139/v89-228.
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A series of 1,10-phenanthroline (phen), 5-nitro-1,10-phenanthroline (5-NO2-phen), 2,9-dimethyl- 1,10-phenanthroline (dmp), 2,2′-bipyridine (bpy), and 4,4′-dimethy-2,2′-bipyridine (dmb) metal complexes has been characterized using fast atom bombardment mass spectrometry (FAB MS). Intact cations are observed in the positive ion FAB mass spectra of all tetracoordinated complexes, [Ag(L)2]NO3, [Cu(L)2]2 SO4•5H2O, [Cu(L)2]SO4, and [Tl(L)2](ClO4), where L=bpy, phen, or dmp. Structurally significant fragment ions (ML2+, ML+, M+, and (L+H)+, where M+=metal ion) are also observed. Species such as Ag[Ag(L)2]NO3+, where L=bpy or phen, and Tl[Tl(phen)2](ClO4)+ are also seen. The hexacoordinate complexes, [Co(phen)3]Cl2, [Ru(bpy)Cl2], [Fe(phen)2(CN)2], [Fe(L)3](ClO4), where L=5-NO2-phen, dmb, or bpy, and [Fe(L)3]SO4, where L=bpy or phen, show intact cations in the positive ion spectra; [Ni(bpy)3]X2, where X=Cl−,Br−, NO3−, ClO4−, SCN−, and tartrate2−, and [Co(bpy)3](ClO4) do not. Generally, fragment ions such as ML3+, ML2X+, ML2+, MLX+, and (L+H)+ are observed, where X=singly charged intact anion or HSO4−. Comparison of FAB results with those of laser mass spectrometry (LMS) show that they are comparable, through reduction processes are more important for FAB. LMS always gave the intact cation while FAB was not consistent. Keywords: FAB mass spectrometry, phenanthroline complexes, bipyridine complexes, laser desorption mass spectrometry.
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Faisal, Faisal. "POTRET PEMBELAJARAN DARING MATAKULIAH KAJIAN KEBAHASAAN DI PGSD FIP UNIMED." SCHOOL EDUCATION JOURNAL PGSD FIP UNIMED 11, no. 2 (July 5, 2021): 134–40. http://dx.doi.org/10.24114/sejpgsd.v11i2.26037.
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The purpose of this study is to describe the implementation of online learning for the even semester 2020/2021 Language Studies course in the PGSD FIP UNIMED study program. This research is a qualitative descriptive study. The population used in this study were all second semester students who took the Language Studies course at the PGSD FIP UNIMED Study Program. Samples were taken involving 187 respondents. The instrument used in the study was an online questionnaire with a google form. The data analysis technique was carried out by qualitative analysis with 4 stages of activities, including: data collection, data reduction, data presentation, and drawing conclusions. The results showed: (1) the average score of the teaching and learning process is 4.11 (Good), (2) the average score of capability/competence of lecturers is 4.28 (Good), (3) the average score of supporting facilities and infrastructure is 3 ,93 (Good), and (4) the most dominant challenge is the need to improve IT skills and effectiveness in time management. Keywords: online learning, language studies, PGSD.
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Jadhav, Rohit. "Design, Analysis and Simulation of Halo System." International Journal for Research in Applied Science and Engineering Technology 10, no. 1 (January 31, 2022): 1440–47. http://dx.doi.org/10.22214/ijraset.2022.40054.
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Abstract: The Federation Internationale de L’Autobile (FIA) has been working on improving safety of drivers in open wheel racing series. Numerous incidents caused serious impacts on drivers’ lives. The car-to-car collision, car to environment collision and injuries due to flying debris are common threats to these drivers. In 2016 the introduction of Halo surrounding the cockpit was appreciated by the FIA. The following study includes the design and analysis of this Halo system using FEA. The designing is carried out using Onshape 3D modelling software and its dynamic, static and modal analysis is done with the help of Simscale software. The results showed the values under permissible levels. Keywords: Halo system, F1 Racing Halo, Crash analysis, Simulation of Halo, Head Protection in F1 race, Drivers safety system.
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Pettit, George R., Paul J. Clewlow, Claude Dufresne, Dennis L. Doubek, Ronald L. Cerny, and Klaus Rützler. "Antineoplastic agents. 193. Isolation and structure of the cyclic peptide hymenistatin 1." Canadian Journal of Chemistry 68, no. 5 (May 1, 1990): 708–11. http://dx.doi.org/10.1139/v90-110.
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The Western Pacific Ocean sponge Hymeniacidon sp. was found to contain a cyclo-octapeptide designated hymenistatin 1 (1) active against the P388 leukemia cell line (ED50 3.5 μg/mL). Structural determination was accomplished utilizing high field NMR (400 MHz) and mass spectral techniques (FAB MS/MS) followed by chiral gas chromatographic analysis to establish the absolute configuration (all S-amino acids). Keywords: cytostatic, Hymeniacidon, hymenistatin, cyclo-octapeptide, P388 leukemia.
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Febrianty, Ellinda, Hery Pudjoprastyono, and Reiga Ritomiea Ariescy. "Pengaruh Kualitas Produk, Citra Merek dan Gaya Hidup terhadap Keputusan Pembelian Smartphone Iphone:." Al-Kharaj : Jurnal Ekonomi, Keuangan & Bisnis Syariah 6, no. 2 (October 15, 2023): 2870–81. http://dx.doi.org/10.47467/alkharaj.v6i2.4227.
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This study aims to determine the effect of product quality, brand image, and lifestyle on the purchase decision of an Iphone Smartphone. This research method uses quantitative methods. Variable measurement uses a likert scle with a vulnerability scaleof 1-5 through a google form questionnaire distributed to repondents. The population in this study were all 2019. FEB UPN East Java Veterans Students currently using or have used an iPhone. Sampling using proportional stratified random sampling and probability sampling. 100 students have a referee. Partial least squares (PLS) analysis was used to process the data. The results show that factors such as product quality, brand image and lifestyle have a positive and significant influence on the iPhone smartphone purchase decision of the East Java FEB UPN "Veteran" students of the year 2019.
Keywords: Product Quality, Brand Image, Lifestyle, Purchase Decision
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Ali Abuelnnor, Nagat. "The Mortality Effect of Some Plant Powders on the Cowpea Beetle, Callosobruchus maculatus Fab. (Coleoptera: Chrysomelidae)." Arab Journal for Plant Protection 41, no. 3 (September 2023): 327–31. http://dx.doi.org/10.22268/ajpp-41.3.327331.
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Abuelnour, N.A. 2023. The Mortality Effect of Some Plant Powders on the Cowpea Beetle, Callosobruchus maculatus Fab. (Coleoptera: Chrysomelidae). Arab Journal of Plant Protection, 41(3): 327-331. https://doi.org/10.22268/AJPP41.3.327331 This study aimed to test the biological effect of four plant powders: black pepper (Piper nigrum), ginger (Zingiber offiicinale), retem (Retama raetam) and rosemary (Rosmarinus officinalis) against cowpea weevil, Callosobruchus maculates Fab. in chickpeas using five concentrations, 0.0, 1.0, 2.0, 3.0 and 4.0% (w/w). Results obtained showed that all tested plant powders produced significantly higher mortality than the control and reached 80.63% in 96 h. Mortality rates increased proportionally with duration of exposure. The black pepper P. nigrum caused the highest beetles mortality at all exposure times which differed significantly from mortalities caused by the other plant powders used in this experiment. Keywords: Callosobruchus maculatus, plant powders, chickpeas, mortality
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Darmawan, Fitra, Tri Endar Suswatiningsih, and Christina Wahyu Ary Dewi. "Manajemen Pengadaan Bahan Baku Tandan Buah Segar (TBS) di Pabrik Kelapa Sawit (Studi Kasus di PT Katingan Indah Utama Kotawaringin Timur Kalimantan Tengah)." AGRIFITIA : Journal of Agribusiness Plantation 2, no. 2 (January 4, 2023): 95–109. http://dx.doi.org/10.55180/aft.v2i2.285.
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The aims of the study are 1) Examine the management of FFB raw material procurement in PPKS, 2) calculate the utilization of used capacity from installed capacity on PPKS, 3) analyze the obstacles that arise in the process of fulfilling FFB raw materials in PPKS. This research method is case study research method. Sampling using a key person. Data analysis is done by calculating the used capacity. The results showed that the management of the procurement of raw material for fresh fruit bunches was carried out by planning a system for one year of production based on the RKT (Annual Work Plan), organizing raw materials for fresh fruit bunches from internal plantations and external plantations and the implementation and supervision carried out were very good. seen from the average number of realizations. Utilization of the actual used capacity of Kabuau PPKS is fairly good, with an average of 85.55% of the factory's installed capacity. The obstacle faced in procuring FFB raw materials at Kabuau PPKS from internal plantations is the lack of smooth delivery of fruit. The external constraint is the supply of fruit that is not of good quality. Keywords: management, procurement, used capasity
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Nam, Jinvo, Hyun-Mi Bae, Chang-Hun Lee, and Gil-Sang Lee. "An Analysis on the Long-term Management of Urban Tree Carbon Reduction 'Forestry Inventory Analysis' towards Climate Change Adaptation." Journal of People, Plants, and Environment 25, no. 6 (December 31, 2022): 759–72. http://dx.doi.org/10.11628/ksppe.2022.25.6.759.
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Background and objective: Climate change and its impact on carbon storage in urban trees is a topic that has received increasing attention. Related studies focusing on data collection and analysis-based programs, such as the Forestry Inventory Analysis (FIA) programme in the US, have presented remarkable approaches to obtaining integrated analysis estimates and its management structure from a long-term perspective. This study explored the FIA programme in the context of long-term management in relation to tree carbon-related data collection and analysis.Methods: For the analysis, this study employed bibliometric methods (network using VOSviewer and coordinated analysis using NVivo) and an analytical framework. The case study is based on FIA-related driver changes of the keywords 'carbon' and 'tree' as well as the FIA management structure, using place-keeping theory as an integrated analytical framework and as the approach to long-term management.Results: Analysing FIA shows long-term management which has run since 2010, revealing key issues and significant terms in six dimensions of place-keeping analytical frameworks: public-private partnership-based data collection and political support in policy, central and local government-integrated fundraising from income generation, active governance-formed community activities in governance, alliance-structured networks in partnerships, integrated or unified estimated structures in evaluation, and maintenance. The case analysis reveals the necessity of a long-term management approach that incorporates a carbon storage estimate-focused policy, integrated income-partnerships, expanded active governance, Private Public Community Partnership (PPCP) multi-sector partnerships, and data platform settings.Conclusion: Newly emerging urban tree management structures should be reflected first on establishing an integrated carbon neutrality-based estimating system and secondly, on building long-term management approaches to the system. This will ultimately allow for climate change adaptation to approach carbon neutrality.
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Aulia, Nabilah, and I. Ketut Suryanawa. "Pengaruh Persepsi Kegunaan dan Kemudahan Penggunaan Pada Minat Penggunaan Quick Response Code dalam Transaksi Keuangan." E-Jurnal Akuntansi 28, no. 3 (September 12, 2019): 1749. http://dx.doi.org/10.24843/eja.2019.v28.i03.p08.
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This research was conducted on students of the Accounting Department of FEB, Udayana University, 2015 -2018 who are still active. A sample of 294 students. The sampling technique is incidental sampling. The aim is to determine the effect of perceived usefulness and perceived ease of use on the interest of FEB Accounting Students at Udayana University in using the QR Code in financial transactions. The results of the study can be seen that there is a direct influence between the perceived ease of use on the perception of usability and also there is a direct influence between the perceived ease of use in interest in use. In this study also obtained results that there is no direct influence between perceived usefulness in interest in use and there is no influence between perceptions of ease of use in interest in use through the perception of usability as a mediator.
Keywords : Perception of usability, Perception of ease of use, interest in use, QR Code.
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Farquharson, Melvin J., and J. Stephen Hartman. "Bis(tertiary amine)dihaloboron cations and related species: nuclear magnetic resonance and fast atom bombardment mass spectrometry studies." Canadian Journal of Chemistry 67, no. 11 (November 1, 1989): 1711–23. http://dx.doi.org/10.1139/v89-264.
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The formation of four-coordinate haloboron cations from aliphatic tertiary amine adducts of the mixed boron trihalides by heavy halogen displacement has been systematically studied by 19F and 11B nuclear magnetic resonance and positive ion fast atom bombardment mass spectrometry (FAB). Low-steric-hindrance donor molecules readily displace bromide ion from tertiary amine – bromodifluoroborane adducts, D•BF2Br, to form difluoroboron cations D2BF2+ and DD′BF2+, but the corresponding dibromofiuoroborane and tribromoborane adducts are highly resistant to bromide ion displacement. Bis(tertiary amine)dichloroboron and -chloroiodoboron cations can be obtained by selective iodide displacement from D•BCl2I and D•BClI2. Fast atom bombardment mass spectrometry selectively detects the haloboron cations in preference to the neutral adducts in mixtures, and is a valuable complement to nmr in monitoring formation of the haloboron cations as well as any ionic by-products. Keywords: difluoroboron cations, dihaloboron cations, NMR, 11B, 19F, fast atom bombardment (FAB), ligand substitution, redistribution reactions.
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Yau, Ying Wei, Zisheng Li, Mui Teng Chua, Win Sen Kuan, and Gene Wai Han Chan. "Virtual reality mobile application to improve videoscopic airway training: A randomised trial." Annals of the Academy of Medicine, Singapore 50, no. 2 (February 28, 2021): 141–48. http://dx.doi.org/10.47102/annals-acadmedsg.2020431.
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Introduction: Flexible bronchoscopic intubation (FBI) is an important technique in managing an anticipated difficult airway, yet it is rarely performed and has a steep learning curve. We aim to evaluate if the integration of virtual reality gaming application into routine FBI training for emergency department doctors would be more effective than traditional teaching methods. Methods: We conducted a randomised controlled trial to compare self-directed learning using the mobile application, Airway Ex* in the intervention group versus the control group without use of the mobile application. All participants underwent conventional didactic teaching and low-fidelity simulation with trainer’s demonstration and hands-on practice on a manikin for FBI. Participants randomised to the intervention arm received an additional 30 minutes of self-directed learning using Airway Ex, preloaded on electronic devices while the control arm did not. The primary outcome was time taken to successful intubation. Results: Forty-five physicians (20 junior and 25 senior physicians) were enrolled, with male predominance (57.8%, 26/45). There was no difference in time taken to successful intubation (median 48 seconds [interquartile range, IQR 41–69] versus 44 seconds [IQR 37–60], P=0.23) between the control and intervention groups, respectively. However, the intervention group received better ratings (median 4 [IQR 4–5]) for the quality of scope manipulation skills compared to control (median 4 [IQR 3–4], adjusted P=0.03). This difference remains significant among junior physicians in stratified analysis. Conclusion: Incorporating virtual reality with traditional teaching methods allows learners to be trained on FBI safely without compromising patient care. Junior physicians appear to benefit more compared to senior physicians. Keywords: Airway management, emergency medicine, intubation, simulation education, virtual reality
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Huang, Mingyi, Zhanyu Zhang, Zhuping Sheng, Chengli Zhu, Yaming Zhai, and Peirong Lu. "Effect on Soil Properties and Maize Growth by Alternate Irrigation with Brackish Water." Transactions of the ASABE 62, no. 2 (2019): 485–93. http://dx.doi.org/10.13031/trans.13046.
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Abstract. With growing competition for freshwater by industrialization and urbanization, brackish water irrigation has been increasingly used for agricultural production. One of major concerns is the accumulation of salt and its impacts on soil properties and crop yield. If properly managed, alternate irrigation with brackish and freshwater might alleviate the adverse impacts of salt on soil physicochemical properties and plant growth. To exploit proper alternate irrigation to minimize such impacts, a maize pot experiment was conducted at three stages (seedling, jointing and tasseling, and after tasseling) with three alternate irrigation methods (BFF: brackish-fresh-fresh, FBF: fresh-brackish-fresh, and FFB: fresh-fresh-brackish) and with three salinities (1.69, 4.81, and 7.94 dS m-1), respectively. The results show that compared to freshwater irrigation, alternate irrigation with high-salinity brackish water increased soil electrical conductivity by 4.1% to 207.4% and reduced soil infiltration rate by 19.2% to 51.9%. The adverse impacts were more prominent in FBF and FFB than in BFF due to the higher proportions of brackish water in FBF and FFB. High-salinity brackish water also caused salt stress on maize growth and decreased evapotranspiration, relative water content, intrinsic water use efficiency, and electron transport rate by 6.6% to 30.6%, 2.1% to 10.2%, 7.3% to 17.9%, and 7.2% to 39.6%, respectively, leading to reduced growth and productivity. The salt stress was more pronounced in BFF and FBF than in FFB because maize is more salt-sensitive during the vegetative stage. Overall, brackish water irrigation at the jointing and tasseling stage (FBF) caused the most severe impacts on both soil and maize, so freshwater is advocated at this stage. In BFF, due to sufficient freshwater irrigation at later stages, slightly saline irrigation can be applied at the seedling stage without evident adverse effects. Higher-salinity brackish water was used successfully in the after-tasseling stage (FFB), although salt leaching by off-season rainfall was needed after harvest for sustainable production. Keywords: Crop yield, Saline water, Salt stress, Soil salinity, Water use efficiency.
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Kadhim Ibrahim AL- Mahdawi, Fatimah, and Mazin Razooqi Mohammed. "Acute Lymphoblastic Leukemia, Classification, Clinical features and Diagnosis." Diyala Journal of Medicine 19, no. 2 (December 15, 2020): 59–65. http://dx.doi.org/10.26505/djm.19025390602.
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Background: Leukemias are classified as lymphoid or myeloid, dependent on the type of stem cell that is affected. In addition, leukemia is classified as chronic or acute. Acute leukemia is a production of bone marrow-derived immature cells (blasts), include solid organs or peripheral blood. The FAB Cooperative Group original classification scheme proposed to divide1 ALL into three subtypes (L1 - L3). Currently, the world health organization (WHO), modify FAB classification depending on immunophenotype. Symptoms presence of anemia, splenomegaly, and thrombocytopenia, and those are naturally present at diagnosis, indicating the degree to which leukemic lymphoblasts have replaced the bone marrow and the first mark to an ALL diagnosis is typically an abnormal complete blood count result. Objective: To introduce causes of acute lymphocytic leukemia, recent classification methods, diagnosis, and symptoms and diagnosis. Conclusion: Acute lymphocytic leukemia occurs due to a defect in the bone marrow and is classified into several types. The most important classification by the World Health Organization is depending on immunophenotype. The main symptoms are the increase in white blood cells with anemia and thrombocytopenia. Keywords: Acute Lymphoblastic Leukemia, Blood
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Chorna, L. B., H. V. Makukh, D. V. Zastavna, Ya Yu Zaganyach, O. I. Kolodiy, and O. V. Kovtun. "Association of inherited thrombophilia gene polymorphism with sporadic and recurrent miscarriages." Faktori eksperimental'noi evolucii organizmiv 29 (August 31, 2021): 168–73. http://dx.doi.org/10.7124/feeo.v29.1426.
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Aim. Despite numerous scientific studies of possible causes of miscarriage, their etiology remains unclear in approximately 50% of cases. Investigate the prevalence of thrombophilia associated gene polymorphism FGB 455G/A, FII 20210 G/A, FV 1691G/A, ITGA2 807C/T, PAI-1 5G/4G and MTHFR 677C/T in women with sporadic and recurrent miscarriages. Methods. Group I included 35 women with sporadic miscarriage (SM), group II consisted of 57 women with recurrent miscarriage (RM) and 55 women of control group. Genetic testing was performed by PCR-RFLP. Results. In group I of women with SM the 455GA genotype of the FGB gene was more common and its presence in the genotype increases the risk of SM by 4 times and the presence of the 455A allele by 2 times. The Leiden mutation increases the risk of SM by 5 times. In II group of women with RM, the frequency of the 455 AA genotype of the FGB gene was more prevalent and the risk of RM was increased 2.5 times. It is shown that the risk of RM increases 4 times in the presence of the Leiden mutation. The 4G allele of the PAI-1 5G/4G polymorphism leads to a 2-fold increase in the risk of RM, and the presence of the 677TT genotype of the MTHFR gene increases the risk of RM by 3 times. Conclusions. Genetic factors of inherited thrombophilia alleles 455A of the FGB gene, 1691A of the FV gene, 4G of the PAI-1 gene and 677T of the MTHFR gene are alleles of significant risk of reproductive losses both sporadic and, to a greater extent, recurrent.
Keywords: sporadic miscarriage, recurrent.miscarriage, inherited thrombophilia, genetic polymorphism.
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Sultana, Riffat, Dayaram Makwana, Fazal Ur Rehman, Iram Jehan Balouch, Waqar Azim, and Imran Ellahi Soomro. "Prediction of Patient Death due to Sudden Cardiac Arrest with Left Ventricular Dysfunction by Analyzing the Value of BNP: a Prospective Longitudinal Study." Pakistan Journal of Medical and Health Sciences 15, no. 12 (December 30, 2021): 3868–70. http://dx.doi.org/10.53350/pjmhs2115123868.
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Aim: The purpose of this study was to predict the patient’s death due to sudden cardiac arrest with left ventricular dysfunction by analyzing the value of BNP Study design: Prospective longitudinal study Place and duration: This study was conducted at Karachi institute of heart diseases Karachi, Pakistan from Feb 2020 to Feb 2021 Methodology: This cross sectional study was conducted from Feb 2020 to Feb 2021 on 70 patients who were pin pointed with acute STEMI complicated by left ventricular systolic failure and hospitalized in our hospital. A total of 70 patients who were recognized with STEMI, 48 of whom got primary PCI, and 17 of whom received thrombolytic treatment. Results: The average age of the patients was 57.6 years and the range being from 35 to 80 years. Male patients constituted 73.3 percent of the study. It was discovered a mean of NYHA of 2.5, an average Killip classification of 2.8 and an average TIMI score of 8.1. A 90-day follow-up showed that 48 patients survived out of which 7 were reported to have a life-threatening arrhythmia and 12 had sickle cell disease. When ROC curve was shown, Pro-BNP indicated Sc.D. and unanticipated cardiac death was forecasted which also stipulated an AUC of 0.76, while the AUC was 69.6 percent of the ROC curve of the same neuropeptide in evaluating accuracy in prediction of VT, by. A Kaplan-Meier analysis reveals that an increase in pro-BNP over 3.2ng/ml has a significant predictive influence on SCD [OR 0.748 (CI 95 percent: 0.07-0.932), p-value .039] Conclusion: BNP levels in individuals with ischemic cardiomyopathy after an acute MI are a significant, independent predictor of sudden death. Keywords: BNP levels, ischemic cardiomyopathy, sudden death, myocardial infarction
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Junaedi, Junaedi. "Penerapan Tata Kelola Perusahaan Yang Baik (Good Corporate Governance) di Bidang Pengamanan Asset Untuk Meminimalisir Pencurian Tandan Buah Segar (TBS) Kelapa Sawit di PTPN IV." Res Nullius Law Journal 2, no. 2 (July 16, 2020): 165–200. http://dx.doi.org/10.34010/rnlj.v2i2.3329.
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on the contrary, good employees must also have a sense of belonging and high loyalty to the company where they work. PT. Perkebunan Nusantara IV (Persero) is a State-Owned Enterprise (SOE) in the form of a Limited Liability Company (PT) (hereinafter referred to as PTPN IV). In the context of state-owned PT, a good state-owned PT is a state-owned PT that can contribute to stakeholders to ensure public welfare. The instrument for PTPN IV to contribute to stakeholders in order to ensure the realization of public welfare is the implementation of Good Corporate Governance (GCG). In addition, in implementing GCG it is also necessary to apply Good Corporate Culture (GCC) because GCG and GCC have a very close relationship. GCG is the visible side of the company, while the GCC is the inside side of the company or the value side of corporate management. Assets with a total value of more than Rp. 14 trillion must be secured for the sustainability and sustainability of the company's business wheels. The safeguarding of these assets must start from the smallest, an example in this study is the security of oil palm Fresh Fruit Bunches (FFB) which are often stolen, both by “ninja”, and “mafias”. Various modes of crime surfaced, such as theft of FFB; trimming FFB; land grabbing; employee abuse; darkening of the core & Crude Palm Oil (CPO); and employee mistreatment. One of the breakthroughs in implementing GCG that will be implemented at PTPN IV to secure assets to minimize the theft of oil palm FFB is the application of technology, information, and communication at PTPN IV in the form of an application system "Smart Security of Integrity".
Keywords. Good Corporate Governance; Asset Security; and PTPN IV Palm Oil Theft
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Adavitot, S. C. "Tourism climatic comfort index for Solapur (Maharashtra)." Geo Eye 8, no. 1 (June 15, 2019): 15–19. http://dx.doi.org/10.53989/bu.ge.v8i1.5.
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Tourism is a major sector of the global economy. Climate has a strong influence on the tourism and recreation sector and in some regions of the world constitutes the resource on which the tourism industry is predicated. The present paper aims to highlights the application of Mieczowski’s (1985) ‘Tourism Climate Comfort Index’ (TCI) for Solapur and its environ. Along with this Comset’s Comfort Index and Thom’s Discomfort Index. The Solapur District is laying on the south eastern border of Maharashtra has a large number of tourist places particularly religious and historical centers such as Akkalkot, Pandharpur, Tuljapur, Ganagapur, Solapur, Bijapur and Gulbarga in its vicinity. Lakhs of tourist are attracting towards these destinations.T he study area is located far away from the influence of maritime. For the present study data has been collected from Meteorological Dept. Pune and Agricultural Research center Solapur. The study reveals that according to E.C.Thom’s Comfort Index the Temperature Humidity Index (THI value for the months of Nov. (70.34), Dec. (66.69), Jan. (66.95) and Feb (71.45) shows comfortness for tourism, while Camuset Climate Comfort Index (CI) shows the months of Dec.(899.36), Jan. (2007.080) Feb (2351.08) and Mar.(951.41) were comfort months for tourism. As per Mieczkoski’s formula the TCI for the months of Nov (21), Dec.(31), Jan (31) and Feb. (28) are the comfort months for tourist to visit Solapur and its environ. Keywords: Tourism; climate change; tourism comfort index