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Journal articles on the topic 'Tracer System'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Nurwardani, Mayreyna, Mohammad Khoerul Anwar, Lindra Darnella, and Annisa Mufti Allifa. "Design and Implementation of The Tracer Study System at PTKI." Jurnal Humanitaria Jurnal Ilmu Sosial dan Humaniora 2, no. 1 (2023): 01–12. https://doi.org/10.14421/hum.v2i1.2834.

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This research aims to (1) provide an academic basis for the Indonesian Ministry of Religion's DIKTIS and PTKI to formulate policies related to the importance of alumni trace research; (2) provide a manual for the implementation of tracer studies for PTKIN and PTKI so that the implementation of tracer studies is standardized; and (3) establishing a tracer studies system for PTKI, so that tracer studies can be carried out effectively, easily, efficiently and sustainably. Tracer study is useful for knowing the distribution and monitoring of potential alumni of a university, in this case PTKI and

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2

Cobelli, C., and G. Toffolo. "Constant specific activity input allows reconstruction of endogenous glucose concentration in non-steady state." American Journal of Physiology-Endocrinology and Metabolism 258, no. 6 (1990): E1037—E1040. http://dx.doi.org/10.1152/ajpendo.1990.258.6.e1037.

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In vivo studies on the glucose system often require its perturbation by an exogenous input of glucose, whereas glucose turnover is assessed by infusing a glucose tracer. The constant infusion represents the usual format of tracer administration, but it has no clear advantage other than simplicity. Here we propose a different tracer infusion format. It consists of infusing the tracer in parallel with unlabeled glucose so as to maintain a constant specific activity in the infusate. This protocol does not increase experimental complexity and provides new information on the glucose system in non-s

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3

Ardiansyah, Teuku Muhammad. "Web-Based Abulyatama Alumni Information System." International Journal Education and Computer Studies (IJECS) 1, no. 2 (2021): 38–42. http://dx.doi.org/10.35870/ijecs.v1i2.600.

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Tracer study is a study of tracer traces of graduates or alumni carried out to alumni after graduation. The obstacle faced by STMIK Abulyatama in conducting a tracer study is at the time of data collection, currently collecting data manually by distributing questionnaires and telephone interviews with alumni and companies. Therefore, it is necessary to develop a complete E-Tracer study service, which can provide information for higher education institutions for the benefit of curriculum improvements, trace alumni in detail and determine user satisfaction of college graduates. The research obje

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4

Jöckel, P., A. Kerkweg, J. Buchholz-Dietsch, H. Tost, R. Sander, and A. Pozzer. "Technical Note: Coupling of chemical processes with the Modular Earth Submodel System (MESSy) submodel TRACER." Atmospheric Chemistry and Physics 8, no. 6 (2008): 1677–87. http://dx.doi.org/10.5194/acp-8-1677-2008.

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Abstract. The implementation of processes related to chemistry into Earth System Models and their coupling within such systems requires the consistent description of the chemical species involved. We provide a tool (written in Fortran95) to structure and manage information about constituents, hereinafter referred to as tracers, namely the Modular Earth Submodel System (MESSy) generic (i.e., infrastructure) submodel TRACER. With TRACER it is possible to define a multitude of tracer sets, depending on the spatio-temporal representation (i.e., the grid structure) of the model. The required inform

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5

Cobelli, C., G. Toffolo, and D. M. Foster. "Tracer-to-tracee ratio for analysis of stable isotope tracer data: link with radioactive kinetic formalism." American Journal of Physiology-Endocrinology and Metabolism 262, no. 6 (1992): E968—E975. http://dx.doi.org/10.1152/ajpendo.1992.262.6.e968.

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A kinetic formalism for the analysis of stable isotope transient tracer data is developed by establishing the link with the formalism available for radioactive tracer data. The crucial variable is the tracer-to-tracee ratio. By expressing the measurements in terms of this ratio, the conventional kinetic formalism used for radioactive data can be applied to estimate noncompartmental parameters using stable isotope tracer data. The tracer-to-tracee ratio also plays an important role in compartmental modeling. By considering the tracer masses in the compartments as state variables the system-expe

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Jöckel, P., A. Kerkweg, J. Buchholz, H. Tost, R. Sander, and A. Pozzer. "Technical Note: Coupling of chemical processes with the Modular Earth Submodel System (MESSy) submodel TRACER." Atmospheric Chemistry and Physics Discussions 7, no. 6 (2007): 17069–97. http://dx.doi.org/10.5194/acpd-7-17069-2007.

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Abstract. The implementation of processes related to chemistry into Earth System Models and their coupling within such systems requires the consistent description of the chemical species involved. We provide a tool (written in Fortran95) to structure and manage information about constituents, herein after referred to as tracers, namely the Modular Earth Submodel System (MESSy) generic (i.e., infrastructure) submodel TRACER. With TRACER it is possible to define a multitude of tracer sets, depending on the spatio-temporal representation (i.e., the grid structure) of the model. The required infor

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7

O. Amora, Epifelward Niño, Kennery V. Romero, Rennan C. Amoguis, et al. "Quarantine Pass Tracer System." International Multidisciplinary Research Journal 3, no. 2 (2021): 116–22. http://dx.doi.org/10.54476/iimrj292.

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This research addressed the gaps encountered by the current contact tracing process used by the Municipality of Candijay as one of the measures to help combat covid-19. The current process starts with the issuance of quarantine passes and listing its details on the logbooks every time a resident passed on a quarantine control point. The problem is that the quarantine passes can be counterfeited, checking the quarantine passes and writing down the details into the logbooks are time consuming and tracking or the whereabouts of a quarantine pass is difficult to trace. The Bohol Quarantine Pass Tr

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8

Cobelli, C., G. Toffolo, D. M. Bier, and R. Nosadini. "Models to interpret kinetic data in stable isotope tracer studies." American Journal of Physiology-Endocrinology and Metabolism 253, no. 5 (1987): E551—E564. http://dx.doi.org/10.1152/ajpendo.1987.253.5.e551.

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In contrast to "weightless" radioactive tracers, stable isotope tracers have nonnegligible mass and are naturally present in the system, and the measured variable is a ratio of two isotopic species. These features do not allow stable isotopic tracer data analysis using straightforward analogy with radioactive tracer approaches, even though this practice is common. In this study, we present kinetic variables, models, and measurements for the analysis and interpretation of stable isotope tracer data. Assumptions and mathematical techniques for modeling the data when perturbation is both nonnegli

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9

Allen, D. R., K. W. Hoppel, and D. D. Kuhl. "Wind extraction potential from 4D-Var assimilation of O<sub>3</sub>, N<sub>2</sub>O, and H<sub>2</sub>O using a global shallow water model." Atmospheric Chemistry and Physics Discussions 13, no. 10 (2013): 25291–323. http://dx.doi.org/10.5194/acpd-13-25291-2013.

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Abstract. The wind extraction due to assimilation of trace gas (tracer) data is examined using a 4D-Var data assimilation system based on the shallow water equations coupled to the tracer continuity equation. The procedure is outlined as follows. First, a Nature Run is created, simulating middle stratospheric winter conditions. Second, ozone (O3), nitrous oxide (N2O), and water vapor (H2O) (treated in this study as passive tracers) are initialized using Microwave Limb Sounder (MLS) mixing ratios at 850 K potential temperature and advected by the Nature Run winds. Third, the initial dynamical c

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10

Barthe, C., C. Mari, J. P. Chaboureau, P. Tulet, F. Roux, and J. P. Pinty. "Numerical study of tracers transport by a mesoscale convective system over West Africa." Annales Geophysicae 29, no. 5 (2011): 731–47. http://dx.doi.org/10.5194/angeo-29-731-2011.

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Abstract. A three-dimensional cloud-resolving model is used to investigate the vertical transport from the lower to the upper troposphere in a mesoscale convective system (MCS) that occurred over Niger on 15 August 2004. The redistribution of five passive tracers initially confined in horizontally homogeneous layers is analyzed. The monsoon layer tracer (0–1.5 km) is the most efficiently transported in the upper troposphere with concentrations 3 to 4 times higher than the other tracers in the anvil. On the contrary the African Easterly Jet tracer (~3 km) has the lowest contribution above 5 km.

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11

Saito, Y., D. Ito, N. Odaira, K. Kurita, and H. Iikura. "Development of Tracer Particles for Thermal Hydraulic Experiment by Neutron Imaging." Journal of Physics: Conference Series 2605, no. 1 (2023): 012028. http://dx.doi.org/10.1088/1742-6596/2605/1/012028.

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Abstract To observe flow velocity distributions by Neutron Imaging, suitable tracers are necessary. Their performance is highly dependent on their density, visibility, and wettability (if applied to liquid metal). Gold cadmium tracers have been developed for the Pb-Bi two-phase flow, however the visibility have not been verified depending on the particle size and the measurement system. As the candidates of tracer particles, Ag, Cd, Au-Cd, and Ag-Cd have been tested by varying its compositions and their diameters. Results show enough visibility if the particles size is larger than 1mm. In addi

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12

Reguindin, John Christopher, Reymund Sabay, and Dennis Madrigal. "DILG Negros Occidental Contact Tracer Information Management System." Technium BioChemMed 2, no. 4 (2021): 79–95. http://dx.doi.org/10.47577/biochemmed.v2i4.5389.

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COVID-19 pandemic reshapes the use of technology and innovation in an organization. Organizations are adopting and utilizing technologies in their day-to-day operations. Information Systems offer a wide range of solutions in terms of data management and interconnecting people with the use of a system. Its use was proven to enhance and improve the productivity of an organization in this pandemic. These promising results led the researcher to develop the Department of the Interior and Local Government (DILG) Negros Occidental Contact Tracer Information Management System (CTIMS). The CTIMS is a w

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13

Bradley, Andrew M., Peter A. Bosler, and Oksana Guba. "Islet: interpolation semi-Lagrangian element-based transport." Geoscientific Model Development 15, no. 16 (2022): 6285–310. http://dx.doi.org/10.5194/gmd-15-6285-2022.

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Abstract. Advection of trace species, or tracers, also called tracer transport, in models of the atmosphere and other physical domains is an important and potentially computationally expensive part of a model's dynamical core. Semi-Lagrangian (SL) advection methods are efficient because they permit a time step much larger than the advective stability limit for explicit Eulerian methods without requiring the solution of a globally coupled system of equations as implicit Eulerian methods do. Thus, to reduce the computational expense of tracer transport, dynamical cores often use SL methods to ad

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14

Ozenil, Marius, Jonas Aronow, Marlon Millard, et al. "Update on PET Tracer Development for Muscarinic Acetylcholine Receptors." Pharmaceuticals 14, no. 6 (2021): 530. http://dx.doi.org/10.3390/ph14060530.

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The muscarinic cholinergic system regulates peripheral and central nervous system functions, and, thus, their potential as a therapeutic target for several neurodegenerative diseases is undoubted. A clinically applicable positron emission tomography (PET) tracer would facilitate the monitoring of disease progression, elucidate the role of muscarinic acetylcholine receptors (mAChR) in disease development and would aid to clarify the diverse natural functions of mAChR regulation throughout the nervous system, which still are largely unresolved. Still, no mAChR PET tracer has yet found broad clin

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15

Mu, Linjing, Stefanie D. Krämer, Hazem Ahmed, et al. "Neuroimaging with Radiopharmaceuticals Targeting the Glutamatergic System." CHIMIA International Journal for Chemistry 74, no. 12 (2020): 960–67. http://dx.doi.org/10.2533/chimia.2020.960.

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Radiopharmacy at ETH has worked on the development of novel PET tracers for neuro-, cardiac- and tumor imaging for many years. In this paper, our efforts on targeting the glutamatergic system of the metabotropic glutamate receptor subtype 5 (mGluR5) and the ionotropic N-methyl-<small>D</small>-aspartate (NMDA) receptor are summarized. We briefly described the principles of positron emission tomography (PET) tracer development for the central nervous system (CNS) and the radiolabeling methods used in our laboratory. To assess the radioligands, results of in vitro autoradiography, bi

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16

Allen, D. R., K. W. Hoppel, and D. D. Kuhl. "Wind extraction potential from 4D-Var assimilation of stratospheric O<sub>3</sub>, N<sub>2</sub>O, and H<sub>2</sub>O using a global shallow water model." Atmospheric Chemistry and Physics 14, no. 7 (2014): 3347–60. http://dx.doi.org/10.5194/acp-14-3347-2014.

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Abstract. The wind extraction due to assimilation of stratospheric trace gas (tracer) data is examined using a 4D-Var (four-dimensional variational) data assimilation system based on the shallow water equations coupled to the tracer continuity equation. The procedure is outlined as follows. First, a nature run is created, simulating middle stratospheric winter conditions. Second, ozone (O3), nitrous oxide (N2O), and water vapor (H2O) (treated in this study as passive tracers) are initialized using Aura Microwave Limb Sounder (MLS) mixing ratios at 850 K potential temperature and are advected b

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17

Legare, Sierra, and Marek Stastna. "Implications of Reynolds Averaging for Reactive Tracers in Turbulent Flows." Journal of Marine Science and Engineering 11, no. 11 (2023): 2036. http://dx.doi.org/10.3390/jmse11112036.

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RANS simulations have been broadly used to investigate turbulence in the oceans and atmosphere. Within these environments there are a multitude of tracers undergoing reactions (e.g., phytoplankton growth, chemical reactions). The distribution of these reactive tracers is strongly influenced by turbulent mixing. With a 50 member ensemble of two-dimensional Rayleigh–Taylor-induced turbulent mixing, we show that the dynamics of a reactive tracer growing according to Fisher’s equation are poorly captured by the ensemble mean. A fluctuation-dependent sink introduced by Reynolds averaging Fisher’s e

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18

Kadori, Ilman, Muhammad Arul Sendri, and Bei Harira Irawan. "Sistem Informasi Tracer Study Menggunakan Metode FAST." Jurnal ICT : Information Communication & Technology 20, no. 1 (2021): 115–20. http://dx.doi.org/10.36054/jict-ikmi.v20i1.313.

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The output of the success of the education process needs to be traced by tertiary institutions to find out how many graduates are relevant to the work with the field of knowledge they master is through tracer study. The implementation of the Tracer Study on the STMIK MIC Cikarang campus is still done manually, resulting in the campus difficulty reaching more alumni in filling out the questionnaire. Plus, the campus had to go the extra mile in recapitulating the results of the questionnaire. In this study, the FAST (Framework for Application System Technologies) method is used with the aim of d

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19

de Graaf, Joost, and Joakim Stenhammar. "Stirring by periodic arrays of microswimmers." Journal of Fluid Mechanics 811 (December 13, 2016): 487–98. http://dx.doi.org/10.1017/jfm.2016.797.

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The interaction between swimming micro-organisms or artificial self-propelled colloids and passive (tracer) particles in a fluid leads to enhanced diffusion of the tracers. This enhancement has attracted strong interest, as it could lead to new strategies to tackle the difficult problem of mixing on a microfluidic scale. Most of the theoretical work on this topic has focused on hydrodynamic interactions between the tracers and swimmers in a bulk fluid. However, in simulations, periodic boundary conditions (PBCs) are often imposed on the sample and the fluid. Here, we theoretically analyse the

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20

Moola, Prathap, Bergur Sigfússon, and Andri Stefánsson. "Pore-volume alteration measurements to evaluate scale formation during solid–fluid interactions." Mineralogical Magazine 78, no. 6 (2014): 1399–403. http://dx.doi.org/10.1180/minmag.2014.078.6.06.

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Pore-volume changes in porous media during water–rock interaction can be studied using hydrological tracers. The tracers used here were amino G acid, napthionic acid and fluorescein at pH 3 and 6.5 in contact with basaltic glass, quartz and rhyolite. The experimental setup mimicked that of a hydrological tracer test where a fixed volume of tracer was injected into a flow-through column and the breakthrough curve monitored. The measured breakthrough tracer curves were compared to theoretical 1-D reactive transport simulations calculated using the PHREEQC program. In some cases the tracers were

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Mazier, M. J. Patricia, and Peter J. H. Jones. "Model-based compartmental analyses in nutrition research." Canadian Journal of Physiology and Pharmacology 72, no. 4 (1994): 415–22. http://dx.doi.org/10.1139/y94-061.

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Kinetic tracer studies have been used extensively in understanding digestion, absorption, and whole-body metabolism of nutrients. Optimal interpretation of changes in tracer levels over time and movement across body pools often requires sophisticated data analysis. The use of model-based compartmental analysis (MCA) can yield more detailed quantitative and predictive information concerning system dynamics, compared with direct stochastic approaches. With MCA, tracer and tracee data from both experimental and literature values are fit to a model that best approximates the system on the basis of

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N. Udo, Edward, Etebong B. Isong, and Emmanuel E. Nyoho. "Intelligent Software-Aided Contact Tracing Framework: Towards Real-Time Model-Driven Prediction of Covid-19 Cases in Nigeria." International Journal of Software Engineering and Computer Systems 7, no. 1 (2021): 67–76. http://dx.doi.org/10.15282/ijsecs.7.1.2021.7.0083.

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As many countries around the world are trying to live with the deadly coronavirus by adhering to the safety measures put in place by their government as regulated by World Health Organization (WHO), it becomes very vital to continuously trace patients with COVID-19 symptoms for isolation, quarantine and treatment. In this work, an intelligent software-aided contact tracing for real-time model-driven prediction of COVID-19 cases is proposed utilizing COVID-19 dataset from kaggle.com. The dataset is preprocessed using One-Hot encoding and Principal Component Analysis. Isolation Forest algorithm

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Istók, Balázs, and Gergely Kristóf. "Dispersion and Travel Time of Dissolved and Floating Tracers in Urban Sewers." Slovak Journal of Civil Engineering 22, no. 1 (2014): 1–8. http://dx.doi.org/10.2478/sjce-2014-0001.

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Abstract Environmental impacts of oil spills affecting urban sewage networks can be eliminated if timely intervention is taken. The design of such actions requires knowledge of the transport of surface pollutants in open channels. In this study we investigated the travel time and dispersion of pollutants by means of tracer experiments in sewage networks and a creek. The travel time of surface tracers has been found to be significantly shorter than that of a bulk flow tracer. The ratio of the travel times of a bulk flow tracer and surface tracers agreed with the known correlations obtained for

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24

Clément, Eric, and Michel Dagenais. "Traces Synchronization in Distributed Networks." Journal of Computer Systems, Networks, and Communications 2009 (2009): 1–11. http://dx.doi.org/10.1155/2009/190579.

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This article proposes a novel approach to synchronize a posteriori the detailed execution traces from several networked computers. It can be used to debug and investigate complex performance problems in systems where several computers exchange information. When the distributed system is under study, detailed execution traces are generated locally on each system using an efficient and accurate system level tracer, LTTng. When the tracing is finished, the individual traces are collected and analysed together. The messaging events in all the traces are then identified and correlated in order to e

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Antares, Jovi, Zelvi Gustiana, and Ibnu Rusydi. "RANCANGAN SISTEM INFORMASI DALAM PENGEMBANGAN MODEL TRACER STUDY DI UNIVERSITAS DHARMAWANGSA." JURTEKSI (Jurnal Teknologi dan Sistem Informasi) 7, no. 2 (2021): 151–58. http://dx.doi.org/10.33330/jurteksi.v7i2.1002.

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Abstract: The tracer study is a method of alumni tracker carried out by state universities and private universities .A function of the tracer study is a source of information and to know the presence of alumni and provides information and an evaluation for stakeholders to know the quality of a college education .The implementation of the tracer study at the university of dharmawangsa is still done manually using google form that is facility from google , so the implementation in collecting the inefficient .Researchers to develop a web based information system for the purpose of completing defi

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Cherly, B. Sardovia. "BSCS Online Graduate Tracer." International Journal of Innovative Science and Research Technology 7, no. 5 (2022): 945–50. https://doi.org/10.5281/zenodo.6643986.

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This online graduate tracer study is mainly a survey anticipated to trace graduates and to test the level of efficacy of the developed system. To obtain the information needed an adopted questionnaire from the Surigao del Sur State University (SDSSU)-Research office was utilized. The instrument used to evaluate the level of efficacy was the 19-item modified questionnaire from an online GTS. The study endeavored to trace the BSCS graduatesof Surigao del Sur State University, Tandag Campus in order to measure the employability rate and to test the level of efficacy of an Online Graduate Tracer S

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Banerjee, Tirthankar, Robert L. Jack, and Michael E. Cates. "Tracer dynamics in one dimensional gases of active or passive particles." Journal of Statistical Mechanics: Theory and Experiment 2022, no. 1 (2022): 013209. http://dx.doi.org/10.1088/1742-5468/ac4801.

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Abstract We consider one-dimensional systems comprising either active run-and-tumble particles (RTPs) or passive Brownian random walkers. These particles are either noninteracting or have hardcore exclusions. We study the dynamics of a single tracer particle embedded in such a system—this tracer may be either active or passive, with hardcore exclusion from environmental particles. In an active hardcore environment, both active and passive tracers show long-time subdiffusion: displacements scale as t 1/4 with a density-dependent prefactor that is independent of tracer type, and differs from the

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Orcutt, Beth N., Markus Bergenthal, Tim Freudenthal, et al. "Contamination tracer testing with seabed drills: IODP Expedition 357." Scientific Drilling 23 (November 30, 2017): 39–46. http://dx.doi.org/10.5194/sd-23-39-2017.

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Abstract. IODP Expedition 357 utilized seabed drills for the first time in the history of the ocean drilling program, with the aim of collecting intact sequences of shallow mantle core from the Atlantis Massif to examine serpentinization processes and the deep biosphere. This novel drilling approach required the development of a new remote seafloor system for delivering synthetic tracers during drilling to assess for possible sample contamination. Here, we describe this new tracer delivery system, assess the performance of the system during the expedition, provide an overview of the quality of

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Pemper, Richard R., Michael J. Flecker, Vernie C. McWhirter, and Donald W. Oliver. "Hydraulic fracture evaluation with multiple radioactive tracers." GEOPHYSICS 53, no. 10 (1988): 1323–33. http://dx.doi.org/10.1190/1.1442410.

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For many years, wireline tracer surveys have been used to determine the height of fractures created during hydraulic stimulation procedures. A recent advancement in fracture evaluation technology has been to tag different stages of a fracture operation with multiple radioactive tracers, providing the capability to discern between created and propped fracture heights in one or more zones of interest. In this research, a wireline instrumentation and data analysis system is implemented to identify and separate the individual yields from multiple radioactive tracers, with an additional feature tha

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Jahn, A., K. Lindsay, X. Giraud, et al. "Carbon isotopes in the ocean model of the Community Earth System Model (CESM1)." Geoscientific Model Development 8, no. 8 (2015): 2419–34. http://dx.doi.org/10.5194/gmd-8-2419-2015.

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Abstract. Carbon isotopes in the ocean are frequently used as paleoclimate proxies and as present-day geochemical ocean tracers. In order to allow a more direct comparison of climate model results with this large and currently underutilized data set, we added a carbon isotope module to the ocean model of the Community Earth System Model (CESM), containing the cycling of the stable isotope 13C and the radioactive isotope 14C. We implemented the 14C tracer in two ways: in the "abiotic" case, the 14C tracer is only subject to air–sea gas exchange, physical transport, and radioactive decay, while

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Jahn, A., K. Lindsay, X. Giraud, et al. "Carbon isotopes in the ocean model of the Community Earth System Model (CESM1)." Geoscientific Model Development Discussions 7, no. 6 (2014): 7461–503. http://dx.doi.org/10.5194/gmdd-7-7461-2014.

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Abstract. Carbon isotopes in the ocean are frequently used as paleo climate proxies and as present-day geochemical ocean tracers. In order to allow a more direct comparison of climate model results with this large and currently underutilized dataset, we added a carbon isotope module to the ocean model of the Community Earth System Model (CESM), containing the cycling of the stable isotope 13C and the radioactive isotope 14C. We implemented the 14C tracer in two ways: in the "abiotic" case, the 14C tracer is only subject to air–sea gas exchange, physical transport, and radioactive decay, while

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Fast, Jerome D., K. Jerry Allwine, Russell N. Dietz, Kirk L. Clawson, and Joel C. Torcolini. "Dispersion of Perfluorocarbon Tracers within the Salt Lake Valley during VTMX 2000." Journal of Applied Meteorology and Climatology 45, no. 6 (2006): 793–812. http://dx.doi.org/10.1175/jam2371.1.

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Abstract Six perfluorocarbon tracer experiments were conducted in Salt Lake City, Utah, during October 2000 as part of the Vertical Transport and Mixing (VTMX) field campaign. Four tracers were released at different sites to obtain information on dispersion during stable conditions within down-valley flow, canyon outflow, and interacting circulations in the downtown area. Some of the extensive tracer data that were collected are presented in the context of the meteorological field campaign measurements. Tracer measurements at building-top sites in the downtown area and along the lower slopes o

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Budi, Savitri Citra. "Pentingnya Tracer Sebagai Kartu Pelacak Berkas Rekam Medis Keluar dari Rak Penyimpanan." Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) 1, no. 1 (2015): 121–32. http://dx.doi.org/10.22146/jpkm.16959.

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The availability of medical record quickly and accurately when needed will greatly help the quality of health care provided to patients. If the medical record filing system were poor then there will be problems that can interfere with the availability of medical record. In the case of medical record filing system, the staffs at Dlingo I Bantul community health center do not using tracer to mark the medical records that were out from storage. This will have an impact on the wrong location, misfile, and complicates the return of medical record in the right order. Method used in this community se

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Torstenson, Richard, Joakim Tedroff, Per Hartvig, Karl-Johan Fasth, and Bengt Lågström. "A Comparison of 11C-Labeled l-DOPA and l-Fluorodopa as Positron Emission Tomography Tracers for the Presynaptic Dopaminergic System." Journal of Cerebral Blood Flow & Metabolism 19, no. 10 (1999): 1142–49. http://dx.doi.org/10.1097/00004647-199910000-00011.

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11C-labeled 3,4-Dihydroxy-phenyl-l-alanine (L-DOPA) and l-fluorodopa were used as tracers for the functional state of the presynaptic dopamine system in anesthetized monkeys with positron emission tomography, The radiotracer disposition in brain tissue and plasma were studied and effects induced by pharmacologic challenges were evaluated, 6 R-l-erythro-5,6,7,8-tetrahydrobiopterin (6 R-BH4) increased the striatal influx rate constant, e.g., striatal Ki for l-[β-11C]DOPA, but it induced no effect on the Ki-value using l-[β-11C]-6-fluorodopa. Studies of radiolabeled tracer and metabolites in plas

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Sudo, Shigeru, and Naoki Tamura. "Tracer-encapsulated solid pellet injection system." Review of Scientific Instruments 83, no. 2 (2012): 023503. http://dx.doi.org/10.1063/1.3681447.

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Singha, Kamini, Li Li, Frederick D. Day-Lewis, and Aaron B. Regberg. "Quantifying solute transport processes: Are chemically “conservative” tracers electrically conservative?" GEOPHYSICS 76, no. 1 (2011): F53—F63. http://dx.doi.org/10.1190/1.3511356.

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The concept of a nonreactive or conservative tracer, commonly invoked in investigations of solute transport, requires additional study in the context of electrical geophysical monitoring. Tracers that are commonly considered conservative may undergo reactive processes, such as ion exchange, thus changing the aqueous composition of the system. As a result, the measured electrical conductivity may reflect not only solute transport but also reactive processes. We have evaluated the impacts of ion exchange reactions, rate-limited mass transfer, and surface conduction on quantifying tracer mass, me

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Hapsari, Alfonsa Maria Sofia, and Canakya Bima Ananda Putra. "System Design of Tracer Study Development in Higher Education." Jurnal Teknologi Informasi dan Pendidikan 15, no. 1 (2022): 50–56. http://dx.doi.org/10.24036/jtip.v15i1.574.

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Tracer's study is program on the situation of alumni, especially in terms of job search, work situations, and the use of competency acquisition during college. Based on the benchmarks that have been set by Dikti, the development of tracer studies can be implemented in several stages, such as system design development, data design, and interface design. With the development of the tracer study system design, it is hoped that it can become the basis for developing an integrated tracer study information system with the institution. The purpose of this discussion is to find a tracer study design t

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Matthews, Daniel, Simon Bottrell, Landis Jared West, et al. "Comparing the Fate and Transport of MS2 Bacteriophage and Sodium Fluorescein in a Karstic Chalk Aquifer." Pathogens 13, no. 2 (2024): 168. http://dx.doi.org/10.3390/pathogens13020168.

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Groundwater flow and contaminant migration tracing is a vital method of identifying and characterising pollutant source-pathway-receptor linkages in karst aquifers. Bacteriophages are an attractive alternative tracer to non-reactive fluorescent dye tracers, as high titres (>1012 pfu mL−1) can be safely released into the aquifer, offering improved tracer detectability. However, the interpretation of bacteriophage tracer breakthrough curves is complicated as their fate and transport are impacted by aquifer physicochemical conditions. A comparative tracer migration experiment was conducted in

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Kent, James, Christiane Jablonowski, Jared P. Whitehead, and Richard B. Rood. "Assessing Tracer Transport Algorithms and the Impact of Vertical Resolution in a Finite-Volume Dynamical Core." Monthly Weather Review 140, no. 5 (2012): 1620–38. http://dx.doi.org/10.1175/mwr-d-11-00150.1.

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Abstract Modeling the transport of trace gases is an essential part of any atmospheric model. The tracer transport scheme in the Community Atmosphere Model finite-volume dynamical core (CAM-FV), which is part of the National Center for Atmospheric Research’s (NCAR’s) Community Earth System Model (CESM1), is investigated using multidimensional idealized advection tests. CAM-FV’s tracer transport algorithm makes use of one-dimensional monotonic limiters. The Colella–Sekora limiter, which is applied to increase accuracy where the data are smooth, is implemented into the CAM-FV framework, and comp

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Bhuvaneshwari, P., and T. R. Jaya Chandra Lekha. "Design of Advanced High Performance Bus Tracer in System on Chip Using Matrix Based Compression for Low Power Applications." Journal of Computational and Theoretical Nanoscience 17, no. 4 (2020): 1852–56. http://dx.doi.org/10.1166/jctn.2020.8453.

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This project proposes multilayer advanced high-performance bus architecture for low power applications. The proposed AHB architecture consists of the bus arbiter and the bus tracer (A.R.M.A., 1999. Specification (Rev 2.0) ARM IHI0011A). The bus arbiter, which is self motivated selects the input packet based on the control signals of the incoming packet. So that arbitration leads to a maximum performance. The On-Chip bus is an important system-on-chip infrastructure that connects major hardware components. Monitoring the on-chip bus signals is crucial to the SoC debugging and performance analys

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Alfarisi, Wahyu, Fauziyah Fauziyah, and Bernadus Gunawan Sudarsono. "RANCANG BANGUN APLIKASI TRACER STUDY BERBASIS WEB STUDI KASUS PADA FAKULTAS ILMU KOMPUTER UNIVERSITAS BUNG KARNO." Jurnal Ilmiah Sistem Informasi 2, no. 1 (2022): 47–58. http://dx.doi.org/10.46306/sm.v2i1.20.

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Bung Karno University is a university located in central Jakarta. The Tracer Study Information System at Bung Karno University currently is in the process of distributing tracer study forms and filling out tracer study forms, they still have to come to campus, not to mention that in this pandemic era it is difficult to do which results in delays in the process of processing the results of tracer study data filled out by college student. and it takes time to return the completed tracer study form to the faculty. In defining requirements and analyzing and designing systems in order to achieve th

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Akanji, Lateef, and Gabriel Falade. "Closed-Form Solution of Radial Transport of Tracers in Porous Media Influenced by Linear Drift." Energies 12, no. 1 (2018): 29. http://dx.doi.org/10.3390/en12010029.

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A new closed-form analytical solution to the radial transport of tracers in porous media under the influence of linear drift is presented. Specifically, the transport of tracers under convection–diffusion-dominated flow is considered. First, the radial transport equation was cast in the form of the Whittaker equation by defining a set of transformation relations. Then, linear drift was incorporated by considering a coordinate-independent scalar velocity field within the porous medium. A special case of low-intensity tracer injection where molecular diffusion controls tracer propagation but con

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Chandrasekharan, Prashant, Renesmee Kuo, K. L. Barry Fung, et al. "Magnetic Particle Imaging in Vascular Imaging, Immunotherapy, Cell Tracking, and Noninvasive Diagnosis." Molecular Imaging 2023 (March 15, 2023): 1–22. http://dx.doi.org/10.1155/2023/4131117.

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Magnetic particle imaging (MPI) is a new tracer-based imaging modality that is useful in diagnosing various pathophysiology related to the vascular system and for sensitive tracking of cytotherapies. MPI uses nonradioactive and easily assimilated nanometer-sized iron oxide particles as tracers. MPI images the nonlinear Langevin behavior of the iron oxide particles and has allowed for the sensitive detection of iron oxide-labeled therapeutic cells in the body. This review will provide an overview of MPI technology, the tracer, and its use in vascular imaging and cytotherapies using molecular ta

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Feng, Ling, Claus Svarer, Karine Madsen, et al. "Design of Infusion Schemes for Neuroreceptor Imaging: Application to [11C]Flumazenil-PET Steady-State Study." BioMed Research International 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/9132840.

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This study aims at developing a simulation system that predicts the optimal study design for attaining tracer steady-state conditions in brain and blood rapidly. Tracer kinetics was determined from bolus studies and used to construct the system. Subsequently, the system was used to design inputs for bolus infusion (BI) or programmed infusion (PI) experiments. Steady-state quantitative measurements can be made with one short scan and venous blood samples. TheGABAAreceptor ligand [C11]Flumazenil (FMZ) was chosen for this purpose, as it lacks a suitable reference region.Methods. Five bolus [C11]F

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Putri, Alvira Karisma, and Magdalena Ariance Ineke Pakereng. "Pengembangan Sistem Informasi Tracer Study Berbasis User Centered Design (UCD) Menggunakan Framework Laravel." JURNAL MEDIA INFORMATIKA BUDIDARMA 5, no. 3 (2021): 1027. http://dx.doi.org/10.30865/mib.v5i3.3033.

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This research is entitled Implementation of the Laravel Framework in the Development of a Website-Based Tracer Study System. There are also cases that are raised in this research which is the system used is very simple and still uses Google Forms, the system is still uncomfortable because anyone can fill in the Tracer Study form and the information on the Tracer Study is only owned by the Deputy Dean. The purpose of this research is to create a website-based Tracer Study data system using the Laravel framework, which is useful for helping the SWCU FKIP in gathering Alumni information. The proc

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Koshel, Konstantin, Dmitry Stepanov, Nata Kuznetsova, and Evgeny Ryzhov. "Clustering of Floating Tracers in a Random Velocity Field Modulated by an Ellipsoidal Vortex Flow." Symmetry 15, no. 12 (2023): 2211. http://dx.doi.org/10.3390/sym15122211.

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The influence of a background vortex flow on the clustering of floating tracers is addressed. The vortex flow considered is induced by an ellipsoidal vortex evolving in a deformation. The system exhibits various vortex motion regimes: (1) a steady state, (2) oscillation and (3) rotation of the ellipsoidal vortex core. The latter two induce an unsteady velocity field for the tracer, thus leading to irregular (chaotic) tracer motion. Superimposing a stochastic divergent velocity field onto the deterministic vortex flow allows us to observe significantly different tracer evolution. An ellipsoidal

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Mahadevan, Jagannathan. "A Study of the Effect of Fracture Walls on Tracer Transport." SPE Journal 23, no. 01 (2017): 157–71. http://dx.doi.org/10.2118/187941-pa.

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Summary Subsurface permeable systems are heterogeneous at multiple scales and are often fractured. Flow and transport in the subsurface formations are impacted by the presence of fractures, both natural and induced. The effects of permeability heterogeneity and fractures on tracer tests are not well-understood. Echo-tracer (i.e., single-well-injection withdrawal) and transmission-tracer (i.e., dipole) tests can provide information on the flow and transport-system heterogeneity in layered formations. The reversal of flow paths in the echo tests tends to cancel out the non-Gaussian, high-permeab

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Capotosti, Francesca. "a-synuclein PET Imaging: From Clinical Utility in Multiple System Atrophy to the Possible Diagnosis of Parkinson’s Disease." Cells 14, no. 11 (2025): 834. https://doi.org/10.3390/cells14110834.

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The development of PET tracers for the detection of pathological alpha-synuclein (a-synuclein) has the potential to revolutionize the diagnosis, monitoring, and therapeutic interventions of synucleinopathies, including Parkinson’s disease. The journey toward identifying effective PET imaging agents, however, has faced significant challenges due to the complexity and heterogeneity of the a-synuclein structures. Achieving the goal is further compounded by the low density of the pathological target, necessitating that the tracer exhibits a high binding potential, as well as the co-existence of ot

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Adi Soetrisno, Yosua Alvin. "APLIKASI TRACER STUDY BERBASIS WEB PADA UNIVERSITAS DIPONEGORO." Transmisi 21, no. 4 (2019): 135–46. http://dx.doi.org/10.14710/transmisi.21.4.135-146.

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This study aims to integrate the alumni information system which has not been integrated at Diponegoro University. The alumni information system previously encountered problems, namely the absence of alumni database application standards, and there was no policy requiring students to fill and update the alumni database system. The application designed in this study can be a medium that connects faculties and also requires that each alumni can fill in the data in the database. The system development method used in developing this system is the V model. This application has the facility to updat

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Gao, Hengyuan, Xinjie Liu, Xiaofang Yu, et al. "Application of Nano-Carbon Tracing Technology in Thyroid Cancer and Its Relationship with Cytotoxic T Lymphocyte Antigen 4 Gene Polymorphism." Journal of Nanoscience and Nanotechnology 21, no. 2 (2021): 949–54. http://dx.doi.org/10.1166/jnn.2021.18635.

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The most common malignant tumor of the human endocrine system is thyroid cancer, most used surgical treatment for thyroid cancer is total thyroidectomy with central lymph node dissection. However, surgery and thorough lymph node dissection can easily damage the parathyroid glands and cause corresponding surgery. Symptoms such as permanent hyperparathyroidism, nano-carbon is a common type of new lymphoid tissue tracer, it is mainly used to trace lymphoid tissue in tumor surgery. With the continuous advancement of surgical technology, more and more scholars have used nano-carbon to trace lymphoi

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