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Wyświetlanie 1-15 z 16
Tytuł:
Nutrient uptake efficiency of five pistachio (Pistacia vera L.) varieties
Autorzy:
Aznarte-Mellado, C.
Sola-Campoy, P.J.
Robles, F.
Villasenor, J.G.
Rejon, C.R.
de la Herran, R.
Navajas-Perez, R.
Powiązania:
https://bibliotekanauki.pl/articles/1189813.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
nutrient uptake
pistachio nut
Pistacia vera
nutrient content
edible fruit
Opis:
Pistacia vera L., whose edible fruit is the pistachio, is an economically important crop. It is cultivated worldwide and over 50 different varieties have been described attending to morphological and phenological characteristics. The selection of a suitable cultivar may affect the profitability of the orchards, and thus requires careful consideration for any given region. The type and concentration of nutrients taken up by the plant affect its development and eventually the quality and quantity of the fruits. It is a matter of discussion whether all varieties have the same capacity to absorb nutrients. In order to clarify this aspect, in this study the efficiency of nutrient uptake has been assessed for five pistachio varieties: three males (M38, G1, and Mateur), and two females (Batoury, and Joley), by measuring the concentration of 30 chemical elements in leaves by Inductively Coupled Plasma (ICP) and C/N micro-elemental analyses. Data were subjected to a non-parametric Friedman test, using a series of Wilcoxon Rank Sum test with a Bonferroni correction as post hocs. Our findings demonstrate that all these varieties have an equal uptake capacity for Al, Cr, Cu, K, Li, Mn, Ni, Pb, S, Sr, Ti, Tl, Zn, N, B, Fe, Mg, Na, and V. No differences related to the gender of the plants were detected. Only Mateur exhibited significantly higher levels of Ca and lower levels of C. Stock plants from an experimental plot were used as material. These plants are not used for productive purposes, and flowering and fruiting are partially restricted by removing potential nutrient-demanding structures. These findings support the contention that the presence/absence of such organs has more influence on the nutrient uptake than does the variety itself.
Źródło:
Journal of Elementology; 2016, 21, 1; 141-148
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nutrient uptake efficiency of five pistachio (Pistacia vera L.) varieties
Autorzy:
Aznarte-Mellado, C.
Sola-Campoy, P.J.
Robles, F.
Villasenor, J.G.
Rejon, C.R.
de la Herran, R.
Navajas-Perez, R.
Powiązania:
https://bibliotekanauki.pl/articles/14870.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
nutrient uptake
pistachio nut
Pistacia vera
nutrient content
edible fruit
Opis:
Pistacia vera L., whose edible fruit is the pistachio, is an economically important crop. It is cultivated worldwide and over 50 different varieties have been described attending to morphological and phenological characteristics. The selection of a suitable cultivar may affect the profitability of the orchards, and thus requires careful consideration for any given region. The type and concentration of nutrients taken up by the plant affect its development and eventually the quality and quantity of the fruits. It is a matter of discussion whether all varieties have the same capacity to absorb nutrients. In order to clarify this aspect, in this study the efficiency of nutrient uptake has been assessed for five pistachio varieties: three males (M38, G1, and Mateur), and two females (Batoury, and Joley), by measuring the concentration of 30 chemical elements in leaves by Inductively Coupled Plasma (ICP) and C/N micro-elemental analyses. Data were subjected to a non-parametric Friedman test, using a series of Wilcoxon Rank Sum test with a Bonferroni correction as post hocs. Our findings demonstrate that all these varieties have an equal uptake capacity for Al, Cr, Cu, K, Li, Mn, Ni, Pb, S, Sr, Ti, Tl, Zn, N, B, Fe, Mg, Na, and V. No differences related to the gender of the plants were detected. Only Mateur exhibited significantly higher levels of Ca and lower levels of C. Stock plants from an experimental plot were used as material. These plants are not used for productive purposes, and flowering and fruiting are partially restricted by removing potential nutrient-demanding structures. These findings support the contention that the presence/absence of such organs has more influence on the nutrient uptake than does the variety itself.
Źródło:
Journal of Elementology; 2016, 21, 1
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Differential transcriptomic analysis by RNA-seq of GSNO-responsive genes between Arabidopsis roots and leaves
Autorzy:
Begara-Morales, J.
Sanchez-Calvo, B.
Luque, F.
Laterrier, M.
Valderrama, R.
Mata-Perez, C.
Padilla, M.
Carreras, A.
Corpas, F.
Barroso, J.
Powiązania:
https://bibliotekanauki.pl/articles/81065.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
transcriptome
RNA sequence
S-nitrosoglutathione
nitric oxide
stress condition
physiological condition
gene expression
root
leaf
Arabidopsis
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dual regulation of cytosolic ascorbate peroxide (APX) by tyrosine nitration and S-nitrosylation
Autorzy:
Begara-Morales, J.
Sanchez-Calvo, B.
Chaki, M.
Valderrama, R.
Mata-Perez, C.
Lopez-Jaramillo, J.
Carreras, A.
Padilla, M.
Corpas, F.
Barroso, J.
Powiązania:
https://bibliotekanauki.pl/articles/80378.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
post-translational modification
nitric oxide
target protein
ascorbate peroxidase
tyrosine nitration
S-nitrosylation
salinity stress
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The identification of heavy metal accumulator ferns in abandoned mines in the Philippines with applications to mine rehabilitation and metal recovery
Autorzy:
Claveria, Rene Juna R.
Perez, Teresita R.
Navarrete, Ian A.
Perez, Rubee Ellaine C.
Lim, Brian Christian C.
Powiązania:
https://bibliotekanauki.pl/articles/1839051.pdf
Data publikacji:
2020
Wydawca:
Główny Instytut Górnictwa
Tematy:
hyperaccumulator ferns
mine rehabilitation
phytoremediation
phytomining
paprocie hiperakumulacyjne
rekultywacja kopalni
fitoremediacja
fitogórnictwo
Opis:
This paper focuses on the identification of some plant accumulators of heavy metals that can facilitate mine remediation and rehabilitation in the Philippines and metal recovery or phytomining. Most of these hyperaccumulators are ferns that thrive very well in different terrains and of particular interest are Pityrogramma calomelanos, Pteris vittata, and Pteris melanocaulon that are abundant in abandoned CueAu mining areas. The amounts of Cu and As in the soil and in the aboveground (AG) and belowground (BG) components of the accumulator ferns were determined and the Bioaccumulation Factor (BF) and the Translocation Factor (TF) were derived. Efforts to propagate the accumulator ferns identified from spores were successful, thus providing the opportunity of using them for various experiments on mine rehabilitation and metal recovery. The results of these experiments indicated that these hyperaccumulator ferns have the greatest potential for the remediation of metal contaminated soils, the rehabilitation of abandoned mines, and phytomining.
Źródło:
Journal of Sustainable Mining; 2020, 19, 1; 46-57
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical and Physical Parametric Analysis of a SEN with Flow Conditioners in Slab Continuous Casting Mold
Autorzy:
Gonzalez-Trejo, J.
Real-Ramirez, C. A.
Miranda-Tello, R.
Rivera-Perez, F.
Cervantes-de-la-Torre, F.
Powiązania:
https://bibliotekanauki.pl/articles/351515.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
submerged entry nozzle
fluid-flow modifiers
continuous casting of steel
mold flow patterns
turbulence
Opis:
Some of the most recent technologies that improves the performance in continuous casting process has installed infrastructure outside the mold to modify the natural fluid flow pattern to obtain a quasi-steady condition and promote a uniform solidified shell of steel. The submerged entry nozzle distributes the liquid steel in the mold and can be used to obtain the flow symmetry condition with external geometry improvements. The fluid flow conditioners were located near the outlet ports of the nozzle. The aim of the modifiers is to impose a pseudo symmetric pattern in the upper zone of the mold by inhibiting the fluid exchange between the zones created by conditioners. This work evaluates the effect of the thickness and length of the fluid-flow modifiers on the overall performance of the submerged nozzle. These properties of the fluid-flow modifiers were normalized based on two of the geometric dimensions of the standard equipment. Numerical and physical simulations suggest that the flow modifier should be as thin as possible.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2A; 927-946
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research object as mechanism for ensuring research experiment reproducibility within virtual research environment
Autorzy:
Krystek, M.
Mazurek, C.
Palma, R.
Pukacki, J.
Gomez-Perez, J. M.
Powiązania:
https://bibliotekanauki.pl/articles/1940554.pdf
Data publikacji:
2017
Wydawca:
Politechnika Gdańska
Tematy:
research object
virtual research environment
Earth Science
semantic web
preservation
evolution
obiekt badawczy
wirtualne środowisko badawcze
nauki o ziemi
sieć semantyczna
ochrona
ewolucja
Opis:
A Research Object (RO) is defined as a semantically rich aggregation of resources that bundles together essential information relating to experiments and investigations. This information is not limited merely to the data used and the methods employed to produce and analyze such data, but it may also include the people involved in the investigation as well as other important metadata that describe the characteristics, inter-dependencies, context and dynamics of the aggregated resources. As such, a research object can encapsulate scientific knowledge and provide a mechanism for sharing and discovering assets of reusable research and scientific knowledge within and across relevant communities, and in a way that supports reliability and reproducibility of investigation results. While there are no pre-defined constraints related to the type of resources a research object can contain, the following usually apply in the context of scientific research: data used and results produced; methods employed to produce and analyze data; scientific workflows implementing such methods; provenance and settings; people involved in the investigation; annotations about these resources, which are essential to the understanding and interpretation of the scientific outcomes captured by a research object. The example research object contains a workflow, input data and results, along with a paper that presents the results and links to the investigators responsible. Annotations on each of the resources (and on the research object itself) provide additional information and characterize, e.g. the provenance of the results. Therefore, exploitation of the RO model should be considered as a way to provide additional reliability and reproducibility of the research. The concept of the RO was introduced to the environment created in the EVER-EST project in the form of Virtual Research Environment (VRE). a group of Earth Scientists, who are observing, analyzing and modeling processes that take place on land and see, was examined against their needs and expectations about the possible improvements in their scientific work. The results show that scientist expectations are focused on knowledge sharing and reuse, and new forms of scholarly communications beyond pdf articles as supporting tools of knowledge cross-fertilization between their members. The Research Object concept seems a natural answer for these needs. However, the model, in order to be sufficient and usable, must become a part of the working environment and needs to be integrated with the actual tools. Therefore, great efforts have been undertaken to create a generic, technical solution – VRE , which implements the expected functionalities. In this article we present a concept of the VRE as a tool that takes advantage of the Research Object model in order to integrate and simplify the information exchange, as well as persist, share and discover assets of the reusable research. Moreover, we are presenting example scenarios of the VRE usage in the four different Earth Science domains.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2017, 21, 4; 379-389
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Systematic review of Neocaviafrom the Neogene of Argentina: Phylogenetic and evolutionary implications
Autorzy:
Madozzo-Jaen, M.C.
Perez, M.E.
Montalvo, C.
Tomassini, R.L.
Powiązania:
https://bibliotekanauki.pl/articles/21378.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Opis:
Caviidae is one of the groups of rodents with the greatest ecomorphological disparity, and with currently three known lineages: Caviinae (cuises), Dolichotinae (maras), and Hydrochoerinae (capybaras). Caviinae include small caviids represented by three extant genera (Microcavia, Cavia, and Galea) and three fossils forms (Dolicavia, Palaeocavia, and Neocavia). In Argentina, the fossil record of Caviinae is continuous and abundant since the late Miocene. Neocavia, specifically, is represented by different species recorded in the late Miocene–Pliocene. Here, we describe a new species of Neocavia from the late Miocene–early Pliocene of the Cerro Azul Formation (La Pampa Province, Argentina), and provide a re-description of already known species (Neocavia lozanoi and “Neocavia depressidens”). Also, we perform a more comprehensive review of the genus and include the Neocavia species in a phylogenetic context within Caviinae. We analyze the main patterns of the evolution of the tympanic bullae within Caviidae, and infer about a possible occasional fossorial habit of Neocavia. The morphological and phylogenetic analyses indicate that Neocavia is more closely related to Dolicavia and Microcavia than to the other Caviinae, and confirm the monophyly of the genus, with at least two clearly differentiable species. Since this study cannot confirm the systematic position and validity of “N. depressidens”, we suggest not to use this taxon as a biostratigraphic indicator.
Źródło:
Acta Palaeontologica Polonica; 2018, 63, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transcriptomic profiling of linolenic acid-responsive genes in ROS signalling from RNA-seq data in Arabidopsis
Autorzy:
Mata-Perez, C.
Sanchez-Calvo, B.
Begara-Morales, J.
Padilla, M.
Valderrama, R.
Luque, F.
Fernandez-Ocana, A.
Corpas, F.
Barroso, J.
Powiązania:
https://bibliotekanauki.pl/articles/80890.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
conference
linoleic acid
polyunsaturated fatty acid
jasmonic acid
phytohormone
reactive oxygen species
hydrogen peroxide
gene expression
Arabidopsis thaliana
lipoxygenase
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The acute bacterial toxicity of the selenocyanate anion and the bioprocessing of selenium by bacterial cells
Autorzy:
Montes, R. A.
Pradenas, G. A.
Pérez-Donoso, J. M.
Vásquez, C. C.
Chasteen, T. G.
Powiązania:
https://bibliotekanauki.pl/articles/363098.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
bioremediacja
selenowe aniony tlenowe
SeCN
SeO3
SeO4
bioremediation
selenium oxyanions
Opis:
A water-soluble anion containing selenium, selenocyanate (SeCN-), is produced in various industrial settings including petrochemical refining and mining wastewaters and is difficult to remove using common chemical or physical processes. The work described was aimed at determining the relative acute toxicity of SeCNby evaluating its minimal inhibitory and minimal bactericidal concentrations for 1) a bacterium (LHVE) that produces volatile selenium-containing derivatives in cultures containing added SeCNand 2) for a sensitive E. coli wild-type strain. These measures of toxicity were compared to those of selenate and selenite, the oxyanions of selenium commonly found in the environment. Cultures of LHVE amended with SeCNon agar plates produced red, elemental selenium after three days. As far as we know this is the first evidence for the biological production of elemental Se by a metalloid-resistant bacterium exposed to selenocyanate. Bioprocessing of selenite and SeCNby both types of bacteria, as analyzed by inductively coupled plasma spectrometry, demonstrated that LHVE more successfully incorporates or precipitates Se compared to E. coli.
Źródło:
Environmental Biotechnology; 2012, 8, 1; 32-38
1734-4964
Pojawia się w:
Environmental Biotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality management and customer satisfaction in a tourist destination, a structural equation analysis
Zarządzanie jakością i satysfakcja klienta w miejscu przeznaczenia turystycznego, analiza równoważenia strukturalnego
Autorzy:
Perez, C. R.
Garcia, V. G.
Sanchez, R. A.
Martinez, V. R.
Powiązania:
https://bibliotekanauki.pl/articles/405510.pdf
Data publikacji:
2017
Wydawca:
Politechnika Częstochowska
Tematy:
quality management
customer satisfaction
tourist destination
tourism
structural equation analysis
zarządzanie jakością
zadowolenie klienta
destynacja turystyczna
turystyka
analiza równania strukturalnego
Opis:
The paper is based on the premise that customers aspire to achieve maximum satisfaction of the products or services they buy so that knowledge of customer satisfaction enables an organization organized according to provide quality services assuming that levels higher quality leads to higher levels of customer satisfaction. Its empirical research was carried out in the tourist destination Holguín, northeastern Cuba, including more than 2,000 tourists and 70 tourism service providers, and was designed to provide information on the relationship between the level of tourist satisfaction and the variables of quality assurance in the destination. By means of the compilation and analysis of the obtained data a model of structural equations was constructed to visualize the nature of the relations that they were intended to demonstrate. The obtained results indicate that there are relations between the variables that assure the quality and the satisfaction of the customer leaving identified the possibilities of improvement.
Artykuł opiera się na założeniu, że klienci dążą do osiągnięcia maksymalnej satysfakcji z kupowanych produktów lub usług, dzięki czemu wiedza o zadowoleniu klienta pozwala zorganizować organizację zgodnie z dostarczaniem wysokiej jakości usług, zakładając, że wyższa jakość prowadzi do wyższego zadowolenia klienta. Niniejsze badanie empiryczne przeprowadzono w miejscowości turystycznej Holguín w północno-wschodniej Kubie, wzięło w nich udział ponad 2000 turystów i 70 usługodawców turystycznych, a jego celem było dostarczenie informacji na temat związku między poziomem zadowolenia turystów a poziomem jakości świadczonych usług za pomocą kompilacji i analizy uzyskanych danych skonstruowano model równań strukturalnych, celem zwizualizowania charakteru relacji, które zamierzano zademonstrować. Uzyskane wyniki wskazują, że istnieją powiązania między zmiennymi, które zapewniają jakość i satysfakcję klienta, pozostawiając zidentyfikowane możliwości poprawy.
Źródło:
Polish Journal of Management Studies; 2017, 16, 1; 175-186
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aerobiological study in east - central iberian peninsula: pollen diversity and dynamics for major taxa
Autorzy:
Perez-Badia, R.
Rapp, A.
Vaquero, C.
Fernandez-Gonzalez, F.
Powiązania:
https://bibliotekanauki.pl/articles/50584.pdf
Data publikacji:
2011
Wydawca:
Instytut Medycyny Wsi
Źródło:
Annals of Agricultural and Environmental Medicine; 2011, 18, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intradiurnal variations of allergenic tree pollen in the atmosphere of Toledo [Central Spain]
Autorzy:
Perez-Badia, R
Vaquero, C.
Sardinero, S.
Galan, C.
Garcia-Mozo, H.
Powiązania:
https://bibliotekanauki.pl/articles/50438.pdf
Data publikacji:
2010
Wydawca:
Instytut Medycyny Wsi
Tematy:
environmental exposure
Spain
Toledo city
tree pollen
allergenic pollen
atmosphere
aerobiology
atmospheric pollen
meteorology
intradiurnal variation
allergy
human disease
Źródło:
Annals of Agricultural and Environmental Medicine; 2010, 17, 2; 269-275
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pollen spectrum and risk of pollen allergy in Central Spain
Autorzy:
Perez-Badia, R
Rapp, A.
Morales, C.
Sardinero, S.
Galan, C.
Garcia-Mozo, H.
Powiązania:
https://bibliotekanauki.pl/articles/50546.pdf
Data publikacji:
2010
Wydawca:
Instytut Medycyny Wsi
Tematy:
aerobiology
atmospheric pollen
meteorology
pollen calendar
pollen allergy
allergy risk
pollinosis
Central Spain
Spain
Źródło:
Annals of Agricultural and Environmental Medicine; 2010, 17, 1; 139-151
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shock models under policy N
Autorzy:
Pérez-Ocón, R.
Montoro-Cazorla, D.
Segovia, M. C.
Powiązania:
https://bibliotekanauki.pl/articles/2069713.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
phase type distribution
shock model
reliability
survival function
Opis:
We present the life distribution of a device subject to shocks governed by phase-type distributions. The probability of failures after shock follows discrete phase-type distribution. Lifetimes between shocks are affected by the number of cumulated shocks and they follow continuous phase-type distributions. The device can support a maximum of N shocks. We calculate the distribution of the lifetime of the device and illustrate the calculations by means of a numerical application. Computational aspects are introduced. This model extends other previously considered in the literature.
Źródło:
Journal of Polish Safety and Reliability Association; 2008, 2; 295--298
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
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