Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "SE" wg kryterium: Autor

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 53
Tytuł:
Reflux esophagitis and Helicobacter pylori: Is there an association in children?
Autorzy:
Zagorski, SE.
Nazarenko, ON.
Powiązania:
https://bibliotekanauki.pl/articles/1914060.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
reflux esophagitis
helicobacter pylori infection
children
Opis:
Purpose: The role of Helicobacter pylori (Hp) in the development of gastroesophageal reflux disease (GERD) remains disputable. This study was planned to determine clinical-epidemic correlations between reflux esophagitis (RE) and Hp in older children. Materials and methods: 308 children with RE and 418 patients with chronic gastritis (CG) without RE between the ages of 12 and 18 were examined. Hp was diagnosed by histological (Giemsa and hematoxylin-eosin stain, with evaluation of dissemination grade) and rapid urease test. Subjective symptoms (heartburn, abdominal pain, other dyspeptic complaints) were analyzed by questionnaire. Results: Hp infection was found in 44.5% of children with RE (no difference in patients without RE), and it does not increase the erosive esophageal defects risk. Clinical symptoms are not connected to this infection in examined patients. The frequency of Hp infection decreases with the disease duration increase. Conclusion: The development of RE is not connected with Hp, but the disease course has certain peculiarities in the conditions of Hp infection.
Źródło:
Progress in Health Sciences; 2014, 4, 1; 41-46
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plants containing cardiac glycosides showing antiphytoviral activity against Potato virus Y (PVYNTN) on tobacco plants
Autorzy:
Yazdi, S.E.
Mulabisana, J.
Prinsloo, G.
Cloete, M.
Kritzinger, Q.
Powiązania:
https://bibliotekanauki.pl/articles/66680.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
plant disease
Solanaceae
tobacco plant
cardiac glycoside
antiphytoviral activity
potato virus Y
Potyvirus
Potyviridae
Opis:
The tuber necrotic strain of Potato virus Y (PVYNTN) causes widespread disease and has severe negative effects on the growth and yields of plants, especially those of the Solanaceae family. The consequences of residual toxicity and non-biodegradation of synthetic chemicals and pollution of the environment has led to investigations into new non-toxic and biological treatments to control plant viral diseases. Ethanolic extracts of Bowiea volubilis (bulbs), Cotyledon orbiculata (leaves), Gomphocarpus fruticosus (leaves), Merwilla plumbea (dry and fresh bulbs), Nerium oleander (leaves), and the fruits and leaves of Strophanthus speciosus, were evaluated against PVYNTN in vivo and in vitro. At a concentration of 20 mg · ml−1, ethanolic extracts of Strophanthus speciosus (leaves) and fruits (50 mg · ml−1) significantly reduced the expression of PVYNTN symptoms on tobacco plants in vitro without affecting the normal growth and development of the plant. Similarly, at 50 mg · ml−1, N. oleander, C. orbiculata and B. volubilis (fresh bulbs) and S. speciousus leaves at 20 mg · ml−1 extracts showed significant differences in PVYNTN symptoms in the in vivo experiment. Strophanthus speciosus leaf and fruit extracts showed significant inhibition in the in vitro and in vivo assays and demonstrated that S. speciosus has potential to be used as an antiphytoviral treatment.
Źródło:
Journal of Plant Protection Research; 2018, 58, 4
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A two-step fall detection algorithm combining threshold-based method and convolutional neural network
Autorzy:
Xu, Tao
Se, Haifeng
Liu, Jiahui
Powiązania:
https://bibliotekanauki.pl/articles/1848958.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wearable
fall detection
MPU6050
threshold-based method
convolutional neural network
Opis:
Falls are one of the leading causes of disability and premature death among the elderly. Technical solutions designed to automatically detect a fall event may mitigate fall-related health consequences by immediate medical assistance. This paper presents a wearable device called TTXFD based on MPU6050 which can collect triaxial acceleration signals. We have also designed a two-step fall detection algorithm that fuses threshold-based method (TBM) and machine learning (ML). The TTXFD exploits the TBM stage with low computational complexity to pick out and transmit suspected fall data (triaxial acceleration data). The ML stage of the two-step algorithm is implemented on a server which encodes the data into an image and exploits a fall detection algorithm based on convolutional neural network to identify a fall on the basis of the image. The experimental results show that the proposed algorithm achieves high sensitivity (97.83%), specificity (96.64%) and accuracy (97.02%) on the open dataset. In conclusion, this paper proposes a reliable solution for fall detection, which combines the advantages of threshold-based method and machine learning technology to reduce power consumption and improve classification ability.
Źródło:
Metrology and Measurement Systems; 2021, 28, 1; 23-40
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
English language teachers’ conceptualizations of one-to-one private tutoring: An international phenomenographic study
Autorzy:
Werbińska, Dorota
Bozyiǧit, Elif
Guerra, Luis
Ekiert, Małgorzata
Kӧse, Serhan
Powiązania:
https://bibliotekanauki.pl/articles/911931.pdf
Data publikacji:
2019-12-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
English private tutoring
henomenography
language teachers
teachers’ conceptualizations
Opis:
Private English tutoring, understood as the paid English teaching service offered to students to supplement their learning of English at school or prepare them for an examination in English, has become a popular out-of-school learning activity. In order to obtain deeper insights into its intricacies, the need arises to examine the experience of one of its pivotal stakeholders – the private tutors. This article is based on a phenomenographic study with a view to investigating the conceptions of private tutoring held by 15 English teachers from three countries (Poland, Portugal, and Turkey) who offer private teaching services in English in their local contexts. The findings suggest that there are at least three conceptions according to which private tutoring can be experienced by the participants: as a source of income, as helping, and as professional development. The study also poses the question if there is space for formal training of private tutors and calls for further research into English private tutoring
Źródło:
Glottodidactica. An International Journal of Applied Linguistics; 2019, 46, 2; 175-196
0072-4769
Pojawia się w:
Glottodidactica. An International Journal of Applied Linguistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Process Design for Size-Controlled Flame Spray Synthesis of Li4Ti5O12 and Electrochemical Performance
Autorzy:
Waser, O.
Brenner, O.
Groehn, A.J.
Pratsinis, S.E.
Powiązania:
https://bibliotekanauki.pl/articles/952680.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Li-ion battery
Li4Ti5O12
size control
residence time distribution computational fluid
dynamics
flame synthesis of electroceramics
bateria litowo-jonowa
kontrola rozmiaru
płyn obliczeniowy do dystrybucji czasu przebywania
dynamika
synteza płomieniowa elektroceramiki
Opis:
Inexpensive synthesis of electroceramic materials is required for efficient energy storage. Here the design of a scalable process, flame spray pyrolysis (FSP), for synthesis of size-controlled nanomaterials is investigated focusing on understanding the role of air entrainment (AE) during their aerosol synthesis with emphasis on battery materials. The AE into the enclosed FSP reactor is analysed quantitatively by computational fluid dynamics (CFD) and calculated temperatures are verified by Fourier transform infrared spectroscopy (FTIR). Various Li4Ti5O12 (LTO) particle compositions are made and characterized by N2 adsorption, electron microscopy and X-ray diffraction while the electrochemical performance of LTO is tested at various charging rates. Increasing AE decreases recirculation in the enclosing tube leading to lower reactor temperatures and particle concentrations by air dilution as well as shorter and narrower residence time distributions. As a result, particle growth by coagulation - coalescence decreases leading to smaller primary particles that are mostly pure LTO exhibiting high C-rate performance with more than 120 mAh/g galvanostatic specific charge at 40C, outperforming commercial LTO. The effect of AE on FSP-made particle characteristics is demonstrated also in combustion synthesis of LiFePO4 and ZrO2.
Źródło:
Chemical and Process Engineering; 2017, 38, 1; 51-66
0208-6425
2300-1925
Pojawia się w:
Chemical and Process Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new short-bodied salamander from the Upper Jurassic-Lower Cretaceous of China
Autorzy:
Wang, Y
Evans, S.E.
Powiązania:
https://bibliotekanauki.pl/articles/20232.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Lower Cretaceous
Cretaceous
China
Upper Jurassic
Pangerpeton sinensis
deposit
Jurassic
salamander
paleontology
Opis:
Abundant well−preserved salamander fossils have recently been recovered from localities across northeastern China. Pangerpeton sinensis gen. et sp. nov. is represented by a nearly complete skeletal impression of a postmetamorphosed salamander from the Late Jurassic/Early Cretaceous locality of Wubaiding, Liaoning Province. It is characterised by a short wide skull and only 14 presacral vertebrae. Associated soft tissue impressions suggest a warty skin and a broad body outline. Phylogenetic analysis indicates a basal position within Caudata, either just within or just outside crown−group Urodela.
Źródło:
Acta Palaeontologica Polonica; 2006, 51, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Can payments for ecosystem services contribute to sustainable development in the Brazilian Amazon?
Autorzy:
Seehusen, S.E.
Powiązania:
https://bibliotekanauki.pl/articles/38733.pdf
Data publikacji:
2009
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
forest ecosystem service
sustainable development
Brazil
Amazon River
ecological economics
Opis:
The Brazilian Amazon supplies the world with several forests ecosystem services, many of which are essential to sustain human life on earth. Nevertheless, the Amazon is threatened by deforestation and degradation implying in reductions on the provision of these. According to economic theory, as ecosystem services are positive externalities and public goods, agents do not take into consideration the costs and benefits of their consumption and production of ecosystem services into their economic decisions. To address this problem payment for ecosystem services – PES – emerged, aiming to provide a source of income to the poor people living in forest areas, stimulating them not to deforest, and making agents who are indebted with the nature pay for their overconsumption of ecosystem services. There is still controversy about possible impacts of the instrument. This article accesses the potentials of PES to contribute to sustainable development in the Brazilian Amazon using the three goals related to sustainable development proposed by the ecological economics theory: efficient allocation, fair distribution, and sustainable scale. The study shows that PES as a pure market approach is unlikely to solve neither the scale nor the distribution problems. Therefore, for PES to achieve sustainable development, markets for ecosystem services should first be constrained by a maximum sustainable scale. Then, measures should ensure fair distribution in second place. Only after these questions have been tackled, it is desirable that agents interact in the ecosystem services markets to lead to an efficient allocation of resources.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2009, 51, 1
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of Sound Insulation Through Double-Panel Structure by Using Hybrid Local Resonator Array
Autorzy:
Ri, Kyong-Su
Kim, Myong-Jin
Son-U, Se-Hyon
Powiązania:
https://bibliotekanauki.pl/articles/31339917.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
sound insulation
local resonance
insertion loss
sonic crystal
Opis:
In this paper, we present one approach to improve the soundproofing performance of the double-panel structure (DPS) in the entire audible frequencies, in which two kinds of local resonances, the breathing-type resonance and the Helmholtz resonance, are combined. The thin ring resonator row and slit-type resonator (Helmholtz resonator) row are inserted between two panels of DPS together. Overlapping of the band gaps due to the individual resonances gives a wide and high band gap of sound transmission in the low frequency range. At the same time, the Bragg-type band gap is created by the structural periodicity of the scatterers in the high audible frequency range. In addition, the number of scatterer rows and the filling factor are investigated with regard to the sound insulation of DPS with sonic crystals (SCs). Consequently, the hybrid SC has the potential of increasing the soundproofing performance of DPS in the audible frequency range above 1 kHz by about 15 dB on average compared to DPS filled only with glass wool between two panels, while decreasing the total thickness and mass compared to the counterparts with the other type of local resonant sonic crystal.
Źródło:
Archives of Acoustics; 2023, 48, 1; 63-70
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The youngest ctenocystoids from the Upper Ordovician of the United Kingdom and the evolution of the bilateral body plan in echinoderms
Autorzy:
Rahman, I.A.
Stewart, S.E.
Zamora, S.
Powiązania:
https://bibliotekanauki.pl/articles/945494.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Echinodermata
Ctenocystoidea
evolution
bilateral symmetry
Ordovician
ctenocystoid
Upper Ordovician
United Kingdom
bilateral body
echinoderm
Opis:
During the early Palaeozoic, echinoderm body plans were much more diverse than they are today, displaying four distinct types of symmetry. This included the bilateral ctenocystoids, which were long thought to be restricted to the Cambrian. Here, we describe a new species of ctenocystoid from the Upper Ordovician of Scotland (Conollia sporranoides sp. nov.). This allows us to revise the genus Conollia, which was previously based on a single poorly-known species from the Upper Ordovician of Wales (Conollia staffordi). Both these species are characterized by a unique morphology consisting of an elongate-ovoid body covered in spines, which clearly distinguishes them from their better-known Cambrian relatives; they are interpreted as infaunal or semi-infaunal burrowers from deep-water environments. This indicates that the ctenocystoid body plan was not fixed early in the evolution of the group, and they most likely modified their structure as an adaptation to a new mode of life in the Ordovician.
Źródło:
Acta Palaeontologica Polonica; 2015, 60, 1; 39-48
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Iceberg Melting and Climate Change in NW Atlantic Waters
Autorzy:
Perez-Gruszkiewicz, S.E.
Peterson, W.
Powiązania:
https://bibliotekanauki.pl/articles/117122.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Arctic shipping
climate change
Iceberg
Atlantic Ocean
NW Atlantic
iceberg melting
Labrador
International Ice Patrol (IIP)
Opis:
Climate change is predicted to cause increases in sea surface temperature (SST), as well as decreases in sea-ice cover, wind and current velocities. These changes will have a marked effect on iceberg melting in the shipping lanes off Newfoundland and Labrador, Canada. Icebergs that today can cross from northern Labrador to Newfoundland without melting will in the future have to be much larger to survive the transit. For example, icebergs at N Labrador in December of 2016 that are smaller than 156 m will melt before reaching 48N, but in year 2100 the length increases to 228 m. In addition, if future iceberg size distributions off Labrador are the same as today, icebergs will experience roughly 50% reductions in numbers in the NW Atlantic shipping lanes by year 2100. The increased melting rates are due to, in order of importance, increased sea-surface temperatures (responsible for 66% of the increase in the minimum transit size), decreasing current velocities (31%), and decreasing sea-ice cover (3%). Decreasing sea-ice tends to increase wave heights as well as accelerate the effects of wave erosion; however, for the areas studied the wave height is predicted to decrease moderately in year 2100, by a maximum of about 10% in December.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 459-467
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Puddling intensity for late-season sawah systems based on soil hydrophysical conditions and rice performance
Autorzy:
Obalum, S.E.
Watanabe, Y.
Igwe, C.A.
Obi, M.E.
Wakatsuki, T.
Powiązania:
https://bibliotekanauki.pl/articles/26457.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
puddling intensity
late-season sawah system
soil condition
hydrophysical condition
rice
grain yield
Oryza sativa
performance
Opis:
Lowland sawah farmers often puddle to improve soil hydrophysical conditions for rice, but the puddling intensity beyond which no extra yield increases occur is unknown. Agro- nomic effects of six mechanical puddling intensities were assessed in three Nigerian inland-valley bottoms. All puddled plots, irrespec- tive of intensity, produced similar effects at all three locations. At 10 days after transplanting, soil bulk density of all puddled plots re- presented mean decreases relative to control plots of about 22.4, 15.8, and 31.7% at Akaeze, Adani, and Ejeti, respectively. Soil bulk density and moisture content upon saturation were similar during 40-120 days after transplanting. All puddled plots consistently showed taller plants and greater tillering than control plots only at Ejeti. Grain yields were similar among treatments in Akaeze and Adani (mean, 3.71 and 6.42 Mg ha -1 , respectively), but one-pass puddling yielded numerically highest in both locations. At Ejeti, grain yields followed the trend for plant growth, with mean values of 4.36 and 1.81 Mg ha -1 for puddled and control plots, respecti- vely. One-pass puddling may be sufficient for sawah rice grown late particularly in less humid environments.
Źródło:
International Agrophysics; 2014, 28, 3
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial variability of uncultivated soils in derived savanna
Autorzy:
Obalum, S.E.
Oppong, J.
Igwe, C.A.
Watanabe, Y.
Obi, M.E.
Powiązania:
https://bibliotekanauki.pl/articles/25426.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:
The spatial variability of some physicochemical properties of topsoils/subsoils under secondary forest, grassland fallow, and bare-soil fallow of three locations was evaluated. The data were analyzed and described using classical statistical parameters. Based on the coefficient of variation, bulk density, total porosity, 60-cm-tension moisture content, and soil pH were of low variability. Coarse and fine sand were of moderate variability. Highly variable soil properties included silt, clay, macroporosity, saturated hydraulic conductivity, organic matter concentration, and cation exchange capacity. Overall, soil pH and silt varied the least and the most, respectively. Relative weighting showed that location dominantly influenced the soil variability, except for soil porosity and organic matter concentration influenced mostly by land use. Most of the soil data were normally distributed; others were positively skewed and/or kurtotic. The minimum number of samples (at 25 samples ha-1) required to estimate mean values of soil properties was highly soil property-specific, ranging from 1 (topsoil pH-H2O) to 246 (topsoil silt). Cation exchange capacity of subsoils related fairly strongly with cation exchange capacity of topsoils (R2 = 0.63). Spatial variability data can be used to extrapolate dynamic soil properties across a derived-savanna landscape.
Źródło:
International Agrophysics; 2013, 27, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 53

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies