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Academic literature on the topic 'Lee-White method'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Lee-White method"

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Gunawan, Elsye, Aris A. L. Toruan, Rusnaeni Rusnaeni, and Felycitae E. Appa. "Aktivitas Antikoagulan dari Tumbuhan Kayu Ular (Strychnos lucida R.Br.)." JURNAL BIOLOGI PAPUA 14, no. 2 (2022): 129–36. http://dx.doi.org/10.31957/jbp.1494.

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The stem of the snakewood plant (Strychnos lucida) has been used empirically as a malaria drug, relieves fever, treats stomach pain, hemorrhoids, rheumatism, stroke symptoms, and improves blood circulation. Tannins as one of the secondary metabolites of snakewood stems contain gallic acid compounds which are known to thin the blood. The purpose of this study was to determine the anticoagulant activity of the ethanolic extract of snakewood stems on blood group samples, namely A, B, AB, and O. The method used for extraction was maceration, for testing anticoagulants used method modified Lee-Whit

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Desiana, Rante, Augusthinus Asmuruf Frans, Roikhatul Jannah Laila, Santi Meliana Nadeak Erpina, and Susanty Simaremare Eva. "Anticoagulant Activity Test of Ethanol Extract Coleus Scutellarioides ( L. ) Benth." INTERNATIONAL JOURNAL OF PHARMACEUTICAL AND BIO-MEDICAL SCIENCE 04, no. 04 (2024): 351–57. https://doi.org/10.5281/zenodo.10997492.

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Coleus scutellarioides (L.) Benth has been used as a traditional medicine as an antibacterial, anthelmintic, antidiabetic, and appetite enhancer and can treat various types of diseases such as coughs, hemorrhoids, boils, fever, diarrhea, and improves the menstrual cycle. C. scutellarioides plants grow in areas that have moist soil, such as rice fields, wild plants, or medicinal plants. This plant contains chemical compounds, including essential oils, flavonoids, phytosterols, alkaloids, and tannins. This study aims to determine the anticoagulant activity of the ethanol extract of C. scutellari

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Wulansari, Ria, Wahdaniah Wahdaniah, and Suwono Suwono. "Perbedaan Nilai Masa Pembekuan Darah (Clotting Time) dengan Menggunakan Tabung Kaca dan Tabung Plastik Metode Lee and White." Jurnal Laboratorium Khatulistiwa 2, no. 2 (2019): 64. http://dx.doi.org/10.30602/jlk.v2i2.333.

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Abstract: The period of blood coagulation is the time needed to measure the duration of blood clots. Laboratory examination generally passes through 3 stages: preanalytic, analytic and post analytic stages. At the preanalytic stage should be considered such as the use of glass tubes and plastic tubes. As well as various technical errors tend to shorten or extend the freezing period. This study aims to determine whether there is any difference in the value of clotting time by using glass and plastic tube of Lee and White method. The research method used is Quasi Experiment Design. The sampling

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Fitria, Lailatul, Asmuruf Frans, Susanty Simaremare Eva, Roikhatul Jannah Laila, and Rut Yabansabra Yuliana. "Anticoagulant Activity of Ethanol Extract Arcangelisia Flava ( L. ) Merr." INTERNATIONAL JOURNAL OF PHARMACEUTICAL AND BIO-MEDICAL SCIENCE 04, no. 04 (2024): 273–78. https://doi.org/10.5281/zenodo.10941285.

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Many types of plants can be used as medicinal plants, one of which is the <em>Arcangelisia flava plant </em>(L.) Merr <strong>(</strong><em>A. flava</em>). According to the people of Maribu-Sentani-Papua<em>, A. flava </em>is used as medicine for antimalarial, jaundice, and diabetes. This study aims to determine the anticoagulant activity of <em>A. flava ethanol extract </em>using the Lee-White method. This research uses human blood with blood groups A, B, O, and AB who do not have blood coagulation disorders. Tests were carried out each with 5 treatments with two

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Eva, Susanty Simaremare, Fauziyah Fadhilah Rizqa, Gunawan Elsye, Yabansabra Yuliana, and Holle Elizabeth. "Anticoagulant Activity of Ethanolic Extract Stingging Nettle from Biak Numfor." Trends in Pharmaceuticals and Nanotechnology 1, no. 1 (2019): 35–43. https://doi.org/10.5281/zenodo.2607615.

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Stinging nettle (Laportea aestuans (Linn) Chew) have been used empirically as relieving pain such as stiffness, headache, abdominal pain, muscle aches, joints and bruises. The aims of this study was to determine the effect of ethanol extract of  stinging nettle leaf as an anticoagulant that used human blood (A, B, O and AB) using Lee-white method and blood smear. The stinging nettle leaf samples were taken from Biak Numfor, made simplicia, and macerated by 96% ethanol. The anticoagulant activity of ethanol extract was tested with preliminary of 50, 100, 150, 200, and 250 ppm. Then test wa

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Gibson, Richard L., and Chengbin Peng. "Low‐ and high‐frequency radiation from seismic sources in cased boreholes." GEOPHYSICS 59, no. 11 (1994): 1780–85. http://dx.doi.org/10.1190/1.1443565.

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An accurate characterization of borehole seismic sources is necessary to model and interpret waveforms observed in crosshole and reverse vertical seismic profiling (VSP) surveys, since the radiation pattern of a source will directly influence the amplitudes of elastic wave arrivals at receiver locations. Any attempt to study these data or perform inversions of amplitude data without incorporating the borehole effects will have serious limitations. Most previous studies of borehole seismic source radiation patterns have applied low‐frequency approximations to develop expressions for the radiati

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BATES, JONATHAN J., and JOSÉ L. ZAYAS-CASTRO. "SELECTING THE BEST PERFORMING WEIBULL ESTIMATION METHOD FOR RANDOMLY RIGHT CENSORED DATA." International Journal of Reliability, Quality and Safety Engineering 17, no. 02 (2010): 105–18. http://dx.doi.org/10.1142/s021853931000369x.

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A total of nine methods are compared and tables are presented for selecting the best performing estimator for a two-parameter Weibull distribution using randomly right censored data. The results indicate that a best performing method can be selected given a certain sample size, censoring level, and shape parameter range. Such a comparison of estimators is necessary as the best performing method is shown to vary across these values. The estimation methods tested include the Maximum Likelihood Estimator, Kaplan-Meier Estimator, Piecewise Exponential Estimator, Földes, Rejt, and Winter Estimator,

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Nurcahyadi, Indra, Burhanuddin Arafah, Herawaty Abbas, et al. "The Reflection of Humanity in Lee’s To Kill a Mockingbird: From the Perspective of New Historicism." Theory and Practice in Language Studies 15, no. 6 (2025): 1766–74. https://doi.org/10.17507/tpls.1506.05.

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This study aimed to describe the reflection of humanity amidst the racist behaviour in the novel To Kill a Mockingbird by Harper Lee. This study employed a qualitative method using Stephen Greenblatt's New Historicism approach. The data of this study was collected from the descriptions and utterances of the characters and narrator in the novel. The result of this study shows how discrimination was treated at that time, how a sense of humanity existed to defend black people from racial discrimination by white people, and also how this discriminatory treatment influenced social conditions in tha

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Putri, Uswatun Khasanah Duri, Hajrah Hajrah, and Adam M. Ramadhan. "Uji Aktivitas Antikoagulan Ekstrak Daun Ciplukan (Physalis Angulata L) Secara Invitro." Proceeding of Mulawarman Pharmaceuticals Conferences 14 (December 31, 2021): 332–38. http://dx.doi.org/10.25026/mpc.v14i1.590.

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Ciplukan leaf (Physalis angulata L) is empirically used as a hypercoagulation drug. The content of flavonoid secondary metabolites has potential as an anticoagulant. This study aims to determine the yield of ciplukan leaf extract and fraction, the content of secondary metabolites, and its activity as an anticoagulant. The method used in testing anticoagulant activity is Lee White and blood smear. Ciplukan leaves was extracted by maceration method using 70% ethanol solvent. The test samples for the extract and fraction of ciplukan leaves were made in 3 variations of concentration, that is 0.1%;

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Nguyen, Huynh-Tuan-Anh, Van-Tuan Huynh, Quoc-Cuong Nguyen, and Quang-Khoi Nguyen. "High-accuracy emission modeling of yellow phosphor YAG: Ce validated by normalized cross-correlation." Photonics Letters of Poland 16, no. 2 (2024): 31–33. https://doi.org/10.4302/plp.v16i2.1279.

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The emission of yellow phosphor YAG:Ce3+ shows an asymmetric shape that causes the difficulty of spectrum modeling. We proposed and demonstrated a method for modeling the emission of yellow phosphor YAG:Ce3+. The mathematical model is developed based on the Gaussian function. The model's accuracy is quantitatively verified by comparing the simulation and experimental results. Normalized cross-correlation algorithms were applied to quantitatively define the similar level between the simulation and experiment results. The proposed model is helpful for emission spectrum modeling and efficient for

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Books on the topic "Lee-White method"

1

Lee Frost's Simple Art of Black and White Photography: Easy Methods for Making Fine Art Prints. 2nd ed. David & Charles Publishers, 2004.

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Conference papers on the topic "Lee-White method"

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Scherbatyuk, Artem, and Stanislav Tuzhanskyi. "FILTERING ALGORITHMS FOR OPTICAL COHERENCE TOMOGRAPHY IMAGES." In 17th IC Measurement and Control in Complex Systems. VNTU, 2024. https://doi.org/10.31649/mccs2024.3-08.

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The paper provides a comparative analysis of three image filtering algorithms used to improve the quality of optical coherence tomography (OCT): anisotropic diffusion, bilateral filter, and Lee filter. The task of the study was to determine which of the following filters is more suitable for filtering OCT images, which will contribute to more accurate diagnosis of diseases in ophthalmology. Diagnostic data obtained with OCT can be distorted due to the presence of noise, so the correct choice of filtering algorithm is an important step in the image processing process. Anisotropic diffusion is a

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Raninen, Antti, Rauli Franssila, and Jyrki Rovamo. "Critical flicker frequency as a function of photopic luminous flux across the human visual field." In OSA Annual Meeting. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.wm4.

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Using the method of adjustment and a panel of 256 LEDs (dominant wavelength 640 nm) mounted in a solid, black enclosure and covered with a white diffusion screen, we measured CFF to cone stimuli (sinusoidal luminance modulation of 30%) across the temporal visual field at three different levels of retinal illuminance (1970,123, and 25.0 phot, td) produced by inserting neutral density filters (Lee) in front of the panel. Retinal illuminance was constant at all eccentricities studied because retinal area per one solid degree of visual field and effective pupillary area decrease similarly when ecc

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