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Search Results: 1 - 10 of 15814 matches for " transfer factor "
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Radioactivity Levels and Soil-to-Plant Transfer Factor of Natural Radionuclides from Protectorate Area in Aswan, Egypt  [PDF]
S. Harb, A. H. El-Kamel, A. I. Abd El-Mageed, A. Abbady, W. Rashed
World Journal of Nuclear Science and Technology (WJNST) , 2014, DOI: 10.4236/wjnst.2014.41002
Abstract:

The aim of this study is to determine the transfer factor soil-to-plant and to assess the concentration level of natural and artificial radionuclide (238U, 226Ra, 228Ra, 232Th, 40K and 137Cs) in samples from Saluga and Ghazal Protectorate area in Aswan, Egypt, by using High Pure Germanium detector (HPGe) Environmental Radioactivity Measurements Labrotary in faculty of science Qena. Reported values for natural radionuclides ranged from 8.81 ± 0.64 to 28.88 ± 2.10, from 6.98 ± 0.51 to 26.01 ± 1.89, from 12.29 ± 0.89 to 33.32 ± 2.43, from 12.53 ± 0.91 to 32.81 ± 2.39 and from 383.90 ± 27.95 to 711.98 ± 51.83 Bq.kg-1 for 238U, 226Ra, 228Ra, 232Th and 40K, respectively. 137Cs activity concentration was found to be in the range from 0.36 ± 0.03 to 9.73 ± 0.71 Bq.kg-1 and was calculated through transfer factor TF reported in this article.

Diffusion disorder in liver cirrhosis
?ulafi? ?or?e,Peri?i? Mirjana D.,Rebi? Predrag M.
Srpski Arhiv za Celokupno Lekarstvo , 2002, DOI: 10.2298/sarh0204068c
Abstract: The impairment of diffusion capacity is a very common functional disorder in patients with liver cirrhosis and portal hypertension. Disproportionately higher reduction of the transfer factor compared to restrictive ventilatory disorder, suggests that diffusion disorder is primarily induced by inadequate pulmonary perfusion. The isolated reduction of the transfer factor cannot be only explained in each case by intrapuimonary vascular dilatation.
Evolución clínica de pacientes tratados con factor de transferencia
Cruz Barrios,María Aida; Rodríguez Montiel,Blanca Nieves; Furones Mourelle,Juan Antonio; Pérez Barrera,Elisa; Morris Abella,Alberto C; Huete Ferreira,Santos;
Revista Cubana de Hematolog?-a, Inmunolog?-a y Hemoterapia , 2004,
Abstract: we performed a descriptive cross-sectional study in 9 hospitals located in the city of havana, from april 2001 to april 2002, to evaluate the clinical evolution of 280 patients treated with transfer factor since the effectiveness of this immunostimulant has not been assessed in aftermarket research studies. the rate of relapses occurred one year before and after the treatment was measured. additionally, data on therapeutic scheme, prescription reasons and immunological tests before and after treatment was collected. the clinical evolution was satisfactory in 43,6 %, partly satisfactory in 39,4 % and unsatisfactory in 16,3 % of cases. only 41.8 % of cases were applied supplementary tests prior to the prescription, but none was performed afterwards. the treatment with transfer factor improved the clinical evolution of studied patients, although cellular immunodeficiency was not confirmed for all the cases
ACCUMULATION OF 134CS IN THE PEPPER DEPENDING ON SOIL CHARACTERISTICS AND METHODS FOR REDUCTION OF THE TRANSFER OF RADIONUCLIDES FROM THE SOIL INTO THE VEGETATION PRODUCTION
D STANEVA,I YORDANOVA,TZ BINEVA
Journal of Central European Agriculture , 2007,
Abstract: The particularities of the soil as sorbent, its complex composition and the differences in its properties impose the research of the accumulation of the The development of methods for reduction of the transfer of radionuclides from the soil into the vegetation production being of particular signifi cance for the implementation agricultural activities in conditions of radioactive pollution of the soil, the impact of potassium, calcium and EDTA or ethylenediaminetetraac etic acid over the accumulation of radio-caesium from the soil into the plants. As it is seen from the results presented, the input of potassium, calcium and EDTA in the Orthic Luvisols signifi cantly decreased the input of Сs-134 into the pepper plants.
ASSIMILATION OF 134Cs FROM CONTAMINATED SOIL INTO CULTIVARS OF TRITICALE AND OATS
TZ BINEVA,D STANEVA,I YORDANOVA
Journal of Central European Agriculture , 2007,
Abstract: Pot experiments with different triticale and oats varieties spread in Bulgaria were carried out. Three varieties of triticale (Rakita, TC-210, AD-7291) and three varieties of oats (Obrazcov chifl ik, W-!6 and W-17) were analized. The plants were grown on soil type Dystric planosol /FAO. The soil was contaminated with radionuclide 134Cs. It was established that the radiocesium is unevenly accumulated in the different parts of the plants. The highest 134Cs concentration was found in the leaves and the lowest in the grains. Variety differences of uptake of 134Cs in investigated crops were established. The highest level of accumulation of the radiocesium has been detected in triticale variety Rakita, and in oats variety W-17. It has been determined that the uptake of the radionuclide by plants of the triticale is more intensive then that of by the oats plants.
Permeability as an important parameter for radon risk classification of foundation soils
M. Neznal,M. Neznal
Annals of Geophysics , 2005, DOI: 10.4401/ag-3192
Abstract: Permeability of soils and rocks for gases is one of the main parameters for final radon risk classification of building sites. For the improvement of the method for radon risk classification it is recommended to complete in situ measurements of permeability and/or results derived from grain size analysis by an expert description of parameters of soils and rocks and their changes in vertical profile.
ACCUMULATION OF CS-134 IN THE OAT DEPENDING ON SOIL CHARACTERISTICS
TZ BINEVA,D STANEVA,I YORDANOVA
Journal of Central European Agriculture , 2005,
Abstract: Vegetation pot experiments with spring oats, cultivar Obrazcov Chifl ik – 4, were carried out. The plants were grown on four different soil types, typical for Bulgaria: Haplustoll, Udolls, Ustifl uvents, Albaqualf /USA. The soils were contaminated with the Cs-134. It was concluded that the radio-caesium accumulates unevenly in the different plant organs, as its highest concentration was found in the leaves and lowest in the grains of the researched culture. Substantial differences were discovered in the accumulation of caesium –134 in the plants, depending on the soil differences. According to the accumulation of the radio-caesium in the plants, the different soils can be arranged as follows: Albaqualf > Vdolls >Ustifl uvents > Haplustoll.
The Adverse Event Profile in Patients Treated with TransferonTM (Dialyzable Leukocyte Extracts): A Preliminary Report  [PDF]
Toni Homberg, Violeta Sáenz, Jorge Galicia-Carreón, Iván Lara, Edgar Cervantes-Trujano, Maria C. Andaluz, Erika Vera, Oscar Pineda, Julio Ayala-Balboa, Alejandro Estrada-García, Sergio Estrada-Parra, Mayra Pérez-Tapia, Maria C. Jiménez-Martínez
Pharmacology & Pharmacy (PP) , 2015, DOI: 10.4236/pp.2015.62009
Abstract: Background: Dialyzable leukocyte extracts (DLE) are heterogeneous mixtures of peptides less than 10 kDa in size that are used as immunomodulatory adjuvants in immune-mediated diseases. TransferonTM is DLE manufactured by National Polytechnic Institute (IPN), and is registered by Mexican health-regulatory authorities as an immunomodulatory drug and commercialized nationally. The proposed mechanism of action of TransferonTM is induction of a Th1 immunoregulatory response. Despite that it is widely used, to date there are no reports of adverse events related to the clinical safety of human DLE or TransferonTM. Objective: To assess the safety of TransferonTM in a large group of patients exposed to DLE as adjuvant treatment. Methods: We included in this study 3844 patients from our Clinical Immunology Service at the Unit of External Services and Clinical Research (USEIC), IPN. Analysis was performed from January 2014 to November 2014, searching for clinical adverse events in patients with immune-mediated diseases and treated with TransferonTM as an adjuvant. Results: In this work we observed clinical nonserious adverse events (AE) in 1.9% of patients treated with TransferonTM (MD 1.9, IQR 1.7 - 2.0). AE were 2.8 times more frequently observed in female than in male patients. The most common AE were headache in 15.7%, followed by rash in 11.4%, increased disease-related symptomatology in 10%, rhinorrhea in 7.1%, cough in 5.7%, and fatigue in 5.7% of patients with AE. 63% of adverse event presentation occurred from day 1 to day 4 of treatment with Transferon
Effects of the Form Factor and the Force of the Gravity on the Thermal Exchanges by Natural Convection in a Rectangular Cavity Filled with Nanofluid  [PDF]
L. Eljamali, A. Wakif, Z. Boulahia, M. Zaydan, R. Sehaqui
Engineering (ENG) , 2019, DOI: 10.4236/eng.2019.111006
Abstract: Effects of the form factor on natural convection heat transfer and fluid flow in a two-dimensional cavity filled with Al2O3-nanofluid has been analyzed numerically. A model was developed to explain the behavior of nanofluids taking account of the volume fraction φ. The Navier-Stokes equations are solved numerically by alternating an implicit method (Method ADI) for various Rayleigh numbers varies as 103, 104 and 105. The nanofluid used is aluminum oxide with water Pr = 6.2; solid volume fraction φ is varied as 0%, 5% and 10%. Inclination angle Φ varies from 0° to 90° with a step the 15° and the form report varies as R = 0.25, 0.5, 1 and 4. The problem considered is a two-dimensional heat transfer enclosure. The vertical walls are differentially heated; the right is cold when the left is hot. The horizontal walls are assumed to be insulated. The nanofluid in the cavity is considered as incompressible, Newtonian and laminar flow. The nanoparticles are assumed to have a shape and a uniform size. However, it is supposed that the two fluid phases and nanoparticles are in a state of thermal equilibrium and they sink at the same speed. The thermophysical properties of nanofluids are assumed to be constant at the exception of the variation of density in the force of buoyancy, which is based on the approximation of Boussinesq values.
Evaluation of Uranium Accumulation in Black Spruce Trees
Praise Nyade,Derek Wilton,Henry Longerich,Gary Thompson
Research Journal of Environmental and Earth Sciences , 2013,
Abstract: This study evaluated the metal accumulation capacity of black spruce seedlings (Picea mariana) with a special focus on uranium and compared uptake from peat and podzol soil treated with various concentrations of uranyl nitrate hexahydrate. Bio-available indices for uranium in the substrates, accumulation factors and transfer factors for translocation of U between different plant organs were estimated. The results showed higher concentration of U in shoots with accumulation factors up to seven times greater than values determined in roots. Uranium accumulation in stems was several orders of magnitude higher than the metal content in roots and needles. Transfer from substrate to the plants was influenced by substrate-specific properties, resulting in higher uptake of U from soil than from peat. The pattern of U accumulation was consistent with that previously reported in field studies. Metal accumulation values also showed linear progression with Bio-available metal concentrations in the substrate suggesting that black spruce trees are best classified as bio-indicators of uranium content in underlying substrates rather than hyper accumulators of the metal.
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