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Wyszukujesz frazę "Susceptibility" wg kryterium: Temat


Tytuł:
Immune response gene polymorphisms in tuberculosis
Autorzy:
Fol, Marek
Druszczynska, Magdalena
Wlodarczyk, Marcin
Ograczyk, Elzbieta
Rudnicka, Wieslawa
Powiązania:
https://bibliotekanauki.pl/articles/1038871.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
tuberculosis
susceptibility/resistance genes
Opis:
Tuberculosis (TB), an infectious disease caused by Mycobacterium tuberculosis (M.tb), remains a leading public health problem in most parts of the world. Despite the discovery of the bacilli over 100 years ago, there are still many unanswered questions about the host resistance to TB. Although one third of the world's population is infected with virulent M.tb, no more than 5-10% develop active disease within their lifetime. A lot of studies suggest that host genetic factors determine the outcome of M.tb-host interactions, however, specific genes and polymorphisms that govern the development of TB are not completely understood. Strong evidence exists for genes encoding pattern recognition receptors (TLR, CD14), C-type lectins, cytokines/chemokines and their receptors (IFN-γ, TNF-α, IL-12, IL-10, MCP-1, MMP-1), major histocompatibility complex (MHC) molecules, vitamin D receptor (VDR), and proton-coupled divalent metal ion transporters (SLC11A1). Polymorphisms in these genes have a diverse influence on the susceptibility to or protection against TB among particular families, ethnicities and races. In this paper, we review recent discoveries in genetic studies and correlate these findings with their influence on TB susceptibility.
Źródło:
Acta Biochimica Polonica; 2015, 62, 4; 633-640
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antimicrobial resistance in Rhodococcus equi
Autorzy:
Cisek, Agata
Rzewuska, Magdalena
Witkowski, Lucjan
Binek, Marian
Powiązania:
https://bibliotekanauki.pl/articles/1039187.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
antimicrobial susceptibility
Rhodococcus equi
Opis:
Rhodococcus equi is an important etiologic agent of respiratory- and non-respiratory tract infections, diseases of animals and humans. Therapy includes the use of various group of chemotherapeutic agents, however resistance acquirement is quite common. To date there is no preferred treatment protocol for infections caused by isolates resistant to macrolides and rifampicin. The resistance acquirement is a result of many molecular mechanisms, some of which include alterations in the cell envelope composition and structure, activity of the efflux pumps, enzymatic destruction or inactivation of antibiotics, and changes in the target site. This paper contains an overview of antimicrobial susceptibility of R. equi, and explains the possible molecular mechanisms responsible for antimicrobial resistance in this particular microorganism.
Źródło:
Acta Biochimica Polonica; 2014, 61, 4; 633-638
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cluster Superconductivity in the Magnetoelectric $Pb(Fe_{1//2}Sb_{1//2})O_3$ Ceramics
Autorzy:
Laguta, V.
Marysko, M.
Stephanovich, V.
Raevsky, I.
Olekhnovich, N.
Pushkarev, A.
Radyush, Yu.
Raevskaya, S.
Kuzian, R.
Chlan, V.
Štěpánková, H.
Powiązania:
https://bibliotekanauki.pl/articles/1398326.pdf
Data publikacji:
2017-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
Multiferroics
Superconductivity
magnetic susceptibility
Opis:
We report the observation of cluster (local) superconductivity in the magnetoelectric $Pb(Fe_{1//2}Sb_{1//2})O_3$ ceramics prepared at a hydrostatic pressure of 6 GPa and temperatures 1200-1800 K to stabilize the perovskite phase. The superconductivity is manifested by an abrupt drop of the magnetic susceptibility at the critical temperature $T_{c}$ ≈7 K. Both the magnitude of this drop and $T_{c}$ decrease with magnetic field increase. Similarly, the low-field paramagnetic absorption measured by EPR spectrometer drops significantly below $T_{c}$ as well. The observed effects and their critical magnetic field dependence are interpreted as manifestation of the superconductivity and the Meissner effect in metallic Pb nanoclusters existing in the ceramics. Their volume fraction and average size were estimated as 0.1-0.2% and 140-150 nm, respectively. The superconductivity related effects disappear after oxidizing annealing of the ceramics.
Źródło:
Acta Physica Polonica A; 2017, 131, 6; 1534-1539
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi parametric GIS analysis to assess gully erosion susceptibility : a test in southern Sicily, Italy
Autorzy:
Agnesi, V.
Angileri, S.
Cappadonia, C.
Conoscenti, C.
Rotigliano, E.
Powiązania:
https://bibliotekanauki.pl/articles/294669.pdf
Data publikacji:
2011
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
gully erosion
GIS
susceptibility
Sicily
Opis:
A GIS+analysis was carried out in a test basin of southern Sicily, the Magazzolo River basin, in order to assess susceptibility conditions to gully erosion phenomena. The linear density of ephemeral and permanent gullies computed within each class of nine environmental variables was used to generate a gully erosion susceptibility map for the area. A validation procedure carried out in order to test the reliability of the adopted method highlighted a clear correlation between the occurrence of gullies and the computed susceptibility levels.
Źródło:
Landform Analysis; 2011, 17; 15-20
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetic classification of meteorites and application to the Sołtmany fall
Autorzy:
Rochette, P.
Gattacceca, J.
Lewandowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/411478.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Meteorytowe
Tematy:
magnetic susceptibility
meteorite classification
Sołtmany
Opis:
We review the use of magnetic susceptibility measurements to classify meteorites, showing that magnetic susceptibility of meteorites vary over 3 orders of magnitude and shows often a narrow range for a given meteorite group, especially in chondrites. Weathering of metal may bias the magnetic classification. For ordinary chondrite falls, the method is quite robust, as shown by its application to the recent Sołtmany fall.
Źródło:
Meteorites; 2012, 2, No. 1-2; 67-71
2299-0313
2299-1220
Pojawia się w:
Meteorites
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pollution Determined by Using Magnetic Susceptibility Measurements: A Case Study from İzmir-Aliağa
Autorzy:
Kamaci, Z.
Uysal, G.
Powiązania:
https://bibliotekanauki.pl/articles/1031417.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
environmental geophysics
pollution
magnetic susceptibility
Opis:
Wherever industrial development exists, environmental pollution increases day by day. The heavy metals play an important role in soil and environmental pollutions and directly affect the human being lives. In this study, we determine pollutions resulting from heavy metal particles emanating from the brake discs pads of the vehicles on high ways and nearby factories. The field work was carried out in İzmir-Aliağa industrial area. Magnetic susceptibility measurements were done at a long profile crossing the İzmir-Çanakkale highway that goes through the study area. Here, we have determined the effect of heavy metals causing pollution in the surroundings. The studies indicate that the average acceptable values of magnetic susceptibility in such areas is about 0-50×10¯⁵ SI. Here we show that the magnetic susceptibility measurement values obtained along our study profile are about 18 times the acceptable ranges.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 487-489
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antimicrobal susceptibility pattern of methicillin resistant Staphylococcus aureus isolatetd from pediatric clinical samples at Webuye District Hospital
Autorzy:
Kibaba, P. W.
Louis, H.
Kering, K. K.
Matiru, V. N.
Powiązania:
https://bibliotekanauki.pl/articles/1179606.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Antimicrobial
MRSA
Staphyoloccocus aureus
Susceptibility
Opis:
Methicillin Resistant Staphylococcus aureus (MRSA) is an important nosocomial pathogen causing a significant mortality and morbidity. The main objective of the study was to establish antibiotic susceptibility pattern MRSA isolated from pediatrics clinical samples at Webuye District Hospital. A total of 96 clinical samples that include blood, abscess, ear swabs, and urine and wound/pus swabs were collected by simple random techniques. These samples were cultured onto Blood agar and MacConkey agar respectively and incubated at 37oC for 24 hours. In the result 83 (86.5%) clinical samples had pure colonies of S. aureus which were identified morphologically and biochemically by standard laboratory procedures using Bergey’s Manual of Clinical Microbiology. All confirmed positive isolates were screened for MRSA whereby 18 (21.7%) were MRSA and these were subjected to susceptibility testing to common antibiotics by modified Kirby-Bauer disc diffusion method. The susceptibility was interpreted according to National Clinical laboratory Standard guidelines. From the study the prevalence of MRSA was 18 (21.7%) with the highest obtained in the wound/pus swab. Almost all MRSA was resistant to penicillin (92.8%) and cephalexin (96.6%) and amoxicillin (91%). The most effective antibiotics against the of MRSA strain were vancomycin (98.97%), ciprofloxacin (88.4%) and gentamycin (83.06%). Vancomycin was the most effective drug showed the largest inhibition zone.
Źródło:
World Scientific News; 2017, 74; 238-250
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The magnetic susceptibility of soils and alluvial sediments from Gdansk region (northern Poland)
Autorzy:
Nawrocki, J.
Lis, J.
Grabowski, J.
Pasieczna, A.
Powiązania:
https://bibliotekanauki.pl/articles/2059451.pdf
Data publikacji:
2000
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Gdańsk region
magnetic susceptibility
pollution
Opis:
Volume magnetic susceptibility of soils and alluvial sediments from the eastern Pomeranian region near Gdańsk was investigated. Full set of geochemical analyses had been previously performed for all the samples studied. The results are presented in the form of the susceptibility maps of the topsoil horizon, the subsoil at the depth between 40 and 60 cm and the alluvial sediments. Additionally the differential susceptibility map between topsoil horizon and the subsoil at the depth 40-60 cm has been also constructed. A close correlation is observed between positive anomalies of differential susceptibility and urban areas. This is interpreted as surface anthropogenic pollution. Magnetic susceptibility values higher than 1200 x 10-6 SI units, observed in topsoil horizon, might reflect high contents of such elements as Ba, Co, Mg, Mn and Ni.
Źródło:
Geological Quarterly; 2000, 44, 3; 341-345
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regional landslide susceptibility model using the Monte Carlo approach– the case of Slovenia
Autorzy:
Komac, M.
Powiązania:
https://bibliotekanauki.pl/articles/2058979.pdf
Data publikacji:
2012
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Slovenia
Monte Carlo method
landslide
susceptibility
Opis:
Based on the analyses of landslide spatial occurrence, a regional landslide susceptibility model for the area of Slovenia with medium spatial resolution was calculated. Of 3241 landslides with known locations, 67% were selected randomly but representatively as the learning sub-set and used for univariate statistical analyses (c2) to analyse the landslide occurrence in relation to the precondition factors (lithology, slope inclination, slope curvature, slope aspect, distance to geological boundaries, distance to structural elements, distance to surface waters, flow length and land-cover type). In addition, a relation to the triggering factors (maximum 24-hour rainfall intensity with a return period of 100 years, average annual rainfall, and peak ground acceleration with a return period of 475 years) was assessed. The analyses were performed using a geographic information system – GIS in raster format with 25 × 25 m pixel size. The results of the analyses were later used for the development of a weighted linear susceptibility model where more than 156 000 automatically calculated models with random weight combinations were derived. The landslide testing sub-set (33% of landslides) and representative areas with no landslides were used for the validation of all models developed. The results showed that relevant precondition factors for landslide occurrence are (with their weight in a linear model): lithology (0.33), slope inclination (0.23), land-cover type (0.27), slope curvature (0.08), distance to structural elements (0.05), and slope aspect (0.05).
Źródło:
Geological Quarterly; 2012, 56, 1; 41-54
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetic Susceptibility in the Soils Along Communication Routes in the Town of Opole
Autorzy:
Łuczak, Katarzyna
Kusza, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/124185.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
urban soils
magnetic susceptibility
traffic pollution
Opis:
Magnetic susceptibility measurements were taken in eight selected streets of Opole, with diversified vehicle traffic intensity. The experiment surfaces were marked on every street, with two separate zones: A – a strip directly adjacent to the road and B – a strip 1 m away from the road edge. The carried out research indicated considerable influence of communication-generated pollution, with simultaneous influence of other local emission sources. The relation of magnetic anomalies was indicated, which may be the result of ferromagnetic materials aggregation, originating mainly from combustion processes. The road structure, including the surface condition, the main construction material and susceptibility of the surface to cracking are equally important when considering the magnetic increase. A considerable variation of magnetic measurements in different season was pointed out; however, the largest median values of magnetic susceptibility were recorded in the summer season.
Źródło:
Journal of Ecological Engineering; 2019, 20, 2; 234-238
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palaeoclimate and pedosedimentary reconstruction of a middle to late Pleistocene loess-palaeosol sequence, Prymorske, SW Ukraine
Autorzy:
Stephens, Mark
Krzyszkowski, Dariusz
Ivchenko, Andriy
Majewski, Marek
Powiązania:
https://bibliotekanauki.pl/articles/2027392.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Ukraine
Quaternary
loess
palaeosols
magnetic susceptibility
Opis:
A new investigation and palaeoenvironmental reconstruction of the locss-palaeosol sequence at Prymorskc, SW s q Ukraine is presented using soil structures, grain size, mineral magnetics, organic carbon and calcium carbonate determinations. Six units of the established Ukraine Quaternary stratigraphical scheme have been identified and analysed above and including the Zavadivka (Holsteinian) marker horizon - Dnieper, Kaidaky, Tiasmyn, Pryluky and Udai. Precipitation and temperature are tentatively reconstructed from soil and sedimentary proxies calibrated by modern analogues. Increased temperatures and precipitation to today are inferred for the red-brown Zavadivka palaeosol. Overlying Zavadivka is the Dnieper loess containing a gley and two chernozcms above, possibly representing climatic variations of the Saalian Glaciation. The calcified chernozem Kaidaky is separated by a thin loess from the brown/ chestnut Pryluky palaeosol (Eemian) which has features indicating drier conditions to the present. Non-gleyed palaeosols exhibit an enhanced magnetic susceptibility (MS) signal relative to the less weathered loess and highlights the palaeoclimatic potential of the technique. The most well developed palaeosol from this study has the highest MS value (Zavadivka: 80-1 o·8 SJ units) but this relationship is not always found in the Black Sea region. Previous MS analyses at Prymorske (Nawrocki et al. 1999) report significantly higher values to those of this study. Consequently the MS curve at Prymorske cannot be used with confidence for palaeoenvironmental reconstruction and inter-regional correlation without further investigation and modern analogue study.
Źródło:
Studia Quaternaria; 2002; 3-17
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wildland fire risk management using GIS tools – case study
Autorzy:
Majlingová, Andrea
Sedliak, Maroš
Powiązania:
https://bibliotekanauki.pl/articles/1878655.pdf
Data publikacji:
2014
Wydawca:
Wyższa Szkoła Bezpieczeństwa Publicznego i Indywidualnego Apeiron w Krakowie
Tematy:
GIS
susceptibility
risk
vulnerability
wildland fire
Opis:
In the paper we introduce a general approach to wildland fire risk management that we applied for the Slovensky raj territory. The risk management concept is based on assessment of several risk components: susceptibility in the form of calculation of a priori probability of forest destroying by fire, vulnerability based on calculation of posteriori probability of forest destroying by fire and based on modelling the fire behaviour in FARSITE environment. We also briefly introduce an approach to set the measures to prevent the forest fire occurrence and to manage it to minimize its impacts on human, environment and property (resilience).
Źródło:
Security Dimensions; 2014, 11(11); 57-63
2353-7000
Pojawia się w:
Security Dimensions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of stress susceptibility index of silage corn and sorghum crops
Autorzy:
Keten, Mualla
Değirmenci, Hasan
Powiązania:
https://bibliotekanauki.pl/articles/2131636.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
maize
sorghum
yield
stress susceptibility index
Opis:
Drought is an important factor that causes a decrease in yield and quality in regions where second crop silage plants are grown. One of the biggest problems in animal husbandry is feed. Especially silage feed production tends to decrease in areas with increasing water deficit and where water needs cannot be met. The high water requirement of the corn plant requires irrigation in arid and semi-arid regions. However, in order to continue the production of silage fodder in regions where water resources are insufficient with the increase of drought, it will be necessary to grow forage plants that can be an alternative to corn plant. In previous studies, it has been discussed whether the sorghum plant is an alternative to the corn plant. The aim of this study is to determine the drought sensitivity index based on the yield values of both plants in wet and dry conditions. Thus, it will be determined whether the sorghum plant will be an alternative to the corn plant in terms of drought. The identification and selection of drought-resistant cultivars and species is possible using various indices. In this study, second crop silage maize and sorghum crops were grown in Kahramanmaraş conditions for two years (2018 and 2019), dry and irrigated. Stress sensitivity index (SSI) was used to determine the drought tolerance of silage maize and sorghum crops. 'Colonia' variety was used for silage corn and 'Es Foehn' variety was used for sorghum. When the STI values are examined, the corn and sorghum values for 2018 were 0.55 and 0.53, respectively, while the d values for 2019 were found as 0.33 in corn and 0.54 in sorghum. these values are very close to the YSI values. While the 2018 values in both indices were not determinative in terms of drought resistance, the value of sorghum in 2019 was 64% higher than corn (this value was found to be 61% for YSI). This also showed that there is a direct correlation between YSI and STI indices.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2022, nr I/1; 21-28
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Susceptometer in soil magnetic susceptibility studies
Autorzy:
Janas, Sławomir
Magiera, Tadeusz
Szumiata, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/2052100.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
magnetic susceptibility
soils
analysis
mass measurement
Opis:
This work presents a method for measuring the magnetic susceptibility of soil samples based on interactions of magnetic particles contained in a tested sample with a weighed permanent magnet placed in the balance mechanical design. The MYA 2.4Y microbalance manufactured by Radwag Wagi Elektroniczne, Poland, was used to perform mass measurements. The weighing system was adjusted for mass indication using a certified mass standard, and for magnetic susceptibility indication using a certified magnetic susceptibility standard. The volume of each analysed soil sample was 3.93 cm3 and was similar to the volume and the size of the magnetic susceptibility standard. The research was carried out for 10 soil samples with a magnetic susceptibility range varying from 20 to 1600x10-8 m3 kg-1. The soil samples contained technogenic magnetic particles and particles of natural magnetite of geogenic origin. The study was performed for a field of 2 mT.
Źródło:
Metrology and Measurement Systems; 2022, 29, 1; 127-142
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of ionizing radiation in studies of biomarkers of individual susceptibility
Autorzy:
Cebulska-Wasilewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/147794.pdf
Data publikacji:
2005
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
biomarkers
susceptibility
application of radiation
DNA repair
Opis:
Human biomonitoring, as a tool to identify health risk from environmental exposures, has gained increasing interest especially in the areas of cancer risk assessment and diseases treatment. Chromosome aberrations resulting from direct DNA breakage or from inhibition of DNA repair or synthesis, measured in peripheral blood lymphocytes, have been used successfully in the assessment of health risk associated to environmental genotoxic exposures. A faster but sensitive and reliable method for detection of DNA damage, or DNA repair capacity, might be crucial to many fields from molecular epidemiology and toxicology to preventive and clinical medicine. There are reports that results of DNA measures with the use of single cell gel electrophoresis (SCGE) correlate, on the one hand, with physical measures of genotoxins, and on the other hand, with cytogenetic damage that is a biomarker associated to the alteration of the health risk. This review is based on studies in which exposure to radiation was applied as a challenging treatment and DNA damage induced and repaired was analyzed with the use of the alkaline version of SCGE assay. Results from studies on susceptibilities and repair competence carried out in various groups of exposed workers, controls, and cancer patients (more than 700 donors) show variability between donors both in a response to challenging treatment and in the efficiency of repair process. Influences of the occupational exposures and factors depending on genotypes or life style on cellular capacities are observed. Discussed results suggest that study in vitro with the challenging cells by radiation exposure and measuring, with the SCGE assay, the DNA damage before and after repair, may develop a good biomarker of the individual susceptibility to various genotoxins and exposures (environmental, occupational, therapeutic). Such a biomarker may have a potential use in a molecular epidemiology and preclinical identification.
Źródło:
Nukleonika; 2005, 50,suppl.2; 3-8
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł

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