Temat: quantitative evaluation

Skocz do pozycji: 1.

Tytuł:: WC-Co coatings and sinters modified with nano-sized tic microstructure – quantitative evaluation
Autorzy:: Myalska, H.
Dybowski, B.
Moskal, G.
Tematy:: coatings
nanoparticles
TiC
WC-Co
quantitative evaluation; Pokaż więcej
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Powiązania:: https://bibliotekanauki.pl/articles/102338.pdf Link otwiera się w nowym oknie
Opis:: The different concepts of WC-Co thermally sprayed coatings improvement may be considered and the application of nanoparticles, as the mechanical strengthening addition, is one of them. Nanostructured WC-Co coatings are characterized by higher hardness than the coatings formed from micrometric WC grains; whereas coatings with bimodal distribution of particles reveal greater wear resistance than the coatings obtained exclusively from nano-sized powders. Mixed effect of the matrix reinforcement by nanoparticles and strong fix of the micron-sized WC grains was proposed as a possible reason for enhanced wear resistance of bimodal coatings. In order to obtain a bimodal distribution of particles in the material standard WC-Co (83-17) powder was mixed with nanometric TiC powder (40–100 nm). The amount of TiC in powder mixtures was in the range from 1 to 7 wt.%. The mixtures were deposited on steel substrate using HVAF method and also hot pressed in vacuum. The microstructure of obtained coatings and sinters was quantitatively evaluated. Sinters revealed more homogenous distribution of the nano-sized TiC particles than the coatings. The addition of nano-sized TiC in the case of coatings has led to the decrease of its porosity. The agglomeration of nano-sized TiC particles in the coatings results in the decrease of material’s hardness.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) of the major salivary glands : an assessment of the optimal number and combination of b-values
Autorzy:: Mikayama, Ryoji
Kimura, Hiroshi
Kimura, Mitsuhiro
Sakai, Noriyuki
Nagatomo, Kazuya
Yabuuchi, Hidetake
Narita, Hiroshi
Masaki, Masafumi
Hisada, Kiyoshi
Opis:: Purpose: To examine the optimal number and combination of b-values in intravoxel incoherent motion (IVIM) diffusionweighted imaging (DWI) of the major salivary glands. Material and methods: IVIM-DWI was performed on 10 healthy volunteers using 13 b-values (low b-values: 0-100 s/mm2; high b-values: 200-1000 s/mm2). The IVIM parameters and apparent diffusion coefficient of the bilateral major salivary glands were calculated using 13 b-values and were considered the standard values. We sequentially reduced the number of b-values to 10, 8, 6, and 5. The parameters in each combination were calculated. The standard values were compared with the parameters from each reduced b-value in IVIM-DWI. The Wilcoxon signed-rank test was used to determine whether there were any differences between the parameters in each combination. Bonferroni correction was conducted for multiple comparisons. Results: There were no significant differences between the standard values and parameters from the 2 combinations of 6 b-values. However, significant differences were observed between the standard values and parameters from some combinations of only 2 low or only 2 high b-values. Conclusions: IVIM-DWI of the major salivary glands could be performed using a minimum of 6 b-values. However, they should contain 3 low and 3 high b-values.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 3.

Tytuł:: Urban liveability as result of different aspects
Autorzy:: Dessi, Valentina
Astolfi, Lisa
Tematy:: urban liveability
morphology
environmental sustainability
attractiveness
qualitative-quantitative evaluation; Pokaż więcej
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Powiązania:: https://bibliotekanauki.pl/articles/370600.pdf Link otwiera się w nowym oknie
Opis:: Nowadays it is possible to identify a series of parameters that contribute to defining the liveability characteristics of a public space. It is important that all the parameters are satisfied because they are elements that interfere with each other. Morphological characteristics, which partly contribute to defining the environmental performance of the space, together with the functional characteristics of the area, determined by the presence of activities, must be assessed together; however, evaluating them not only in qualitative but also in quantitative terms is not always easy to do. The paper presents a way to evaluate this characteristic of urban space through examples.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Quantitative evaluation of 1,3,1,6 beta-D-glucan contents in wild-growing species of edible Polish mushrooms
Autorzy:: Mironczuk-Chodakowska, I.
Witkowska, A.M.
Zujko, M.E.
Terlikowska, K.M.
Tematy:: edible mushroom
quantitative evaluation
beta-glucan content
wild species
Polska; Pokaż więcej
Wydawca:: Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Powiązania:: https://bibliotekanauki.pl/articles/876709.pdf Link otwiera się w nowym oknie
Opis:: Background. Macrofungal β-glucans are mainly represented by compounds with β-1,3- and β-1,6 glycosidic bonds. They have been shown to have immunomodulatory, anticancer, and antioxidant properties. Although there are many reports on the bioactivity and structure of fungal glucans, studies on the quantitative assessment of these compounds are sparse. Objective. The aim of the study was to determine total β-glucans and 1,3-1,6-β-D-glucan contents in selected species of wild-growing edible Polish mushrooms. Material and methods. Eight species of wild-growing edible mushrooms Boletus pinophilus, Hydnum repandum, Craterellus cornucopioides, Suillus variegatus, Suillus granulatus, Gyroporus cyanescens, Tricholomopsis rutilans, and Auricularia auricula-judae and one species of cultivated mushroom for comparison purposes Agaricus bisporus, were analyzed. Quantitative analysis of 1,3-1,6-β-D-glucans was done using a colorimetric method in accordance with Nitschke et al. Result. Mean total β-glucan content varied from 13.5 g/100 g dry mass in A. bisporus (portobello variety) to 40.9 g/100 g dry mass in T. rutilans. Mean 1,3-1,6-β-D-glucan content in the analyzed fruiting bodies ranged from 3.9 g/100 g dry mass in Agaricus bisporus (cremini) to 16.8 g/100 g dry mass in Auricularia auricula-judae (wood ear). The following mushrooms demonstrated the greatest percentage of 1,3-1,6-β-D-glucan contents in relation to the total β-glucan content: Gyroporus cyanescens (54%), Suillus granulatus (49.8%), Auricularia auricula-judae (47.9%), and Suillus variegatus (40.6%). Conclusions. Among the analyzed species, wild-growing mushrooms had a generally higher average 1,3-1,6-β-Dglucan content compared with cultivated mushrooms such as A. bisporus. The highest average content of these polysaccharides was observed in medicinal mushroom Auricularia auricula-judae. Comparable 1,3-1,6-β-D-glucan content, in relation to this mushroom species, was found in Gyroporus cyanescens, Suillus granulatus and Suillus variegatus, which points to the possibility of the use of these species of mushrooms as medicinal foods.
Wprowadzenie. β-glukany grzybów wielkoowocnikowych występują głównie w postaci związków o wiązaniach β-1,3 oraz β-1,6 glikozydowych. Wykazano, że posiadają one właściwości immunomodulacyjne, przeciwnowotworowe i przeciwutleniające. Pomimo, że istnieje wiele doniesień na temat bioaktywności i struktury glukanów grzybowych, badania dotyczące ilościowej oceny tych związków są rzadkie. Cel. Celem badań była ocena i oznaczenie całkowitej zawartości β-glukanów oraz 1,3-1,6-β-D-glukanów w wybranych jadalnych gatunkach polskich grzybów dziko rosnących. Materiał i metody. Przebadano osiem gatunków grzybów jadalnych dziko rosnących: borowika sosnowego (Boletus pinophilus), kolczaka obłączastego (Hydnum repandum) lejkowca dętego (Craterellus cornucopioides) maślaka pstrego (Suillus variegatus) maślaka ziarnistego (Suillus granulatus) piaskowca modrzaka (Gyroporus cyanescens), rycerzyka czerwonozłotego (Tricholomopsis rutilans) i uszka bzowego (Auricularia auricula-judae) oraz jeden uprawny – pieczarkę dwuzarodnikową (Agaricus bisporus) w celach porównawczych. Ilościową ocenę 1,3-1,6-β-Dglukanów przeprowadzono metodą kolorymetryczną według Nitschke i wsp. Wyniki. Średnia całkowita zawartość β-glukanów wahała się od 13,5 g/100 g suchej masy w pieczarce dwuzarodnikowej (A. bisporus, odmiany portobello) do 40,9 g/100 g suchej masy w rycerzyku czerwonozłotym (T. rutilans). Średnia zawartość 1,3-1,6-β-D-glukanów w analizowanych owocnikach grzybów wynosiła od 3.9 g/100 g s.m. w pieczarce dwuzarodnikowej (A. bisporus odmiany cremini) do 16,8 g /100 g s.m. w uszaku bzowym (Auricularia auricula-judae). Największy udział 1,3-1,6-β-D-glukanów w stosunku do całkowitej zawartości β-glukanów wykazywały następujące gatunki grzybów: piaskowiec modrzak (Gyroporus cyanescens) (54%), maślak ziarnisty (Suillus granulatus) (49,8%), uszak bzowy (Auricularia auricula-judae) (47,9%) oraz maślak pstry (Suillus variegatus) (40,6%). Wnioski. Pośród analizowanych grzybów, gatunki dziko rosnące charakteryzowały się wyższą średnią zawartością 1,3-1,6-β-D-glukanów w porównaniu do uprawnych – pieczarki dwuzarodnikowej (A. bisporus). Najwyższą średnią zawartość tych polisacharydów stwierdzono w owocnikach grzybów leczniczych – uszak bzowy (Auricularia auricula- judae). Porównywalną zawartość 1,3-1,6-β-D-glukanów, w stosunku do uszaka bzowego, stwierdzono w owocnikach piaskowca modrzaka, maślaka ziarnistego oraz maślaka pstrego, co wskazuje na możliwość wykorzystania tych gatunków grzybów jako żywności funkcjonalnej.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Quantitative evaluation of Fusarium species and crop quality traits in wheat varieties of northeastern Poland
Autorzy:: Iwaniuk, P.
Konecki, R.
Snarska, K.
Lozowicka, B.
Tematy:: quantitative evaluation
Fusarium
fungi
filamentous fungi
crop quality
quantitative detection
wheat
plant cultivar
Polska; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/66000.pdf Link otwiera się w nowym oknie
Opis:: This research was conducted to investigate the natural, quantitative composition of the most common Fusarium species directly in fields of northeastern Poland. The concentration of Fusarium spp. and grain quality traits (yield, 1,000 kernel weight, test weight, grain moisture, ergosterol content, protein content, gluten content and starch content) were compared in four wheat varieties (Mandaryna, Struna, Kandela and Arabella). Obtained results indicated a relation between grain moisture, test weight, ergosterol content, yield and fungi concentration. Protein, starch and gluten content was similar in all wheat varieties. Fusarium culmorum was the most common pathogen in Mandaryna and Struna and F. graminearum in Kandela and Arabella. Fusarium avenaceum and F. poae occurred in low amounts in all wheat varieties except Mandaryna. Fusarium oxysporum was found in comparable concentrations in Struna, Kandela and Arabella. Struna despite medium Fusarium spp. colonization possessed the most desirable grain quality compared to other varieties. We carried out real-time PCR detection of Fusarium spp. which is an efficient, cost effective and time saving method in evaluating the development of fungal diseases which are not visible in standard observations.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Four European typologies of older adults concerning environmental sustainability
Autorzy:: Dikken, J.
Kazak, J. K.
Pavlovski, D.
van Hoof, J.
Ivan, L.
Ayalon, L.
Perek-Białas, Jolanta
Opis:: Transforming our societies towards a more sustainable future requires a good understanding of their citizens. This is of particular importance when considering the phenomenon of population ageing, which means that older people will constitute a significant share of society. The imperative for sustainable development arises from escalating concerns over environmental issues, necessitating tailored interventions for the heterogeneous group of older individuals. In this research, data collected using the SustainABLE-8 in Poland, North Macedonia, Romania, the Netherlands and Israel (N = 2318) were analysed in order to identify European typologies and their drivers for - and contributions to - sustainable practices. Several items of the SustainABLE-8 concerned (limiting) energy use at home as well as attitudes towards the use of sustainable energy and climate change. The study identified the existence of four major typologies, which differ in terms of their financial position, beliefs and behaviours in relation to the environment. These typologies cover 1) inactive people with limited financial resources, 2) inactive believers, 3) active and belief-driven people with limited financial resources, and 4) active and belief-driven people with financial resources. Each typology is separately discussed in terms of its specificities and ways how local governments could support their pro-environmental behaviours. The research is summarised with practical implications for industry, policymakers and environmental, social and governance strategies.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 7.

Tytuł:: Development of automatic collision avoidance system and quantitative evaluation of the manoeuvring results
Autorzy:: Nakamura, S.
Okada, N.
Tematy:: collision avoidance
automatic collision avoidance system
quantitative evaluation
manoeuvring
congested waters
colregs
collision risk
anti-collision; Pokaż więcej
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:: https://bibliotekanauki.pl/articles/116438.pdf Link otwiera się w nowym oknie
Opis:: The automatic collision avoidance system introduced in this paper is a system constantly calculating optimal manoeuvring method from the risk and economic preference in the ship manoeuvring space where the course change and the deceleration are performed. The authors also propose a system that quantitatively evaluates the collision avoidance manoeuvring results. Based on the evaluation results of this system, the authors are setting parameters so that ship manoeuvring that does not give anxiety to target ships to be avoided is also realized in automatic collision avoidance manoeuvring. In addition, comparison between the manoeuvring results of the automatic collision avoidance system and the veteran captain's manoeuvring results was quantitatively compared by the proposed evaluation system. Verification experiments were successfully conducted to verify the effectiveness of the proposed automatic collision avoidance system on the actual ship navigating in congested waters.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Experimental and theoretical modeling of waste combustion in a chamber with a moving grate
Autorzy:: Jaworski, T. J.
Pikoń, K.
Kajda-Szcześniak, M.
Tematy:: waste
combustion
physicochemical properties
emission of gas combustion products
quantitative evaluation indicators
marnotrawstwo
spalanie
właściwości fizykochemiczne; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:: https://bibliotekanauki.pl/articles/185559.pdf Link otwiera się w nowym oknie
Opis:: The work contains a description of a developed experimental and theoretical method of modeling of solid waste combustion in a device equipped with a moving grate and capability to optimize the work of waste incineration plant. Implementation of this issue was based on results of experimental studies made on a laboratory scale boiler. This was possible by defining and testing indicators of quantitative assessment of combustion such as: reaction front rate, ignition rate, the rate of combusted mass loss and the heat release rate. These indicators as measurable "criteria indicators" allow transfer of parameters from a laboratory-scale unit, working in the transient egime into an industrial full scale grate device working continuously in stable determined conditions. This allows for wide optimization possibilities in the operation of a waste incineration plant, in particular the combustion chamber, equipped with a moving grate system.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Quantitative assesment of menus from nursing home
Ocena ilościowa jadłospisów realizowanych w domu pomocy społecznej
Autorzy:: Zołoteńka-Synowiec, Marzena
Malczyk, Ewa
Całyniuk, Beata
Misiarz, Marta
Zgraja, Aleksandra
Tematy:: elderly people
nutrition
nutrients
quantitative evaluation of menus
osoby w wieku podeszłym
odżywianie
składniki pokarmowe
ocena ilościowa jadłospisów; Pokaż więcej
Wydawca:: Uniwersytet Opolski. Instytut Nauk o Zdrowiu
Powiązania:: https://bibliotekanauki.pl/articles/963852.pdf Link otwiera się w nowym oknie
Opis:: Background: A properly balanced diet in terms of quantity and quality of the products consumed should meet the needs of elderly people in terms of energy value and nutrition. Aim of the study: The aim of the study was to perform a qualitative and quantitative assessment of ten-day menus used by nursing homes which varied according to season. Material and methods: The study included 40 ten-day menus, prepared for the four seasons of nursing home residents. A quantitative assessment of the meals was carried out using the Diet 5 computer program and Microsoft Excel statistical analyse the data, which included the average, median and coefficient of variation. Results: The average energy value for all the seasons showed no significant differences. The fat and dietary fibre content in the menus was suitable for the group, regardless of the season. The average carbohydrate content was in the suitable range only in summer. In contrast, the dietary protein requirement for the elderly was at acceptable levels in autumn alone. Conclusions: The menus assessed did not show many errors, however special attention must be paid when planning the diet for the elderly.
Wstęp: Odpowiednio zbilansowana pod względem ilości spożywanych produktów dieta zapewnia pokrycie zapotrzebowania osób w wieku podeszłym na energię i składniki odżywcze. Cel pracy: Celem pracy była ocena ilościowa jadłospisów dekadowych zrealizowanych w Domu Pomocy Społecznej, w zależności od pory roku. Materiał i metody: Badaniem objęto 40 dekadowych jadłospisów, sporządzonych w ciągu czterech pór roku dla pensjonariuszy DPS. Przeprowadzono ocenę ilościowa racji pokarmowych przy użyciu programu komputerowego Dieta 5 i wyliczono dane statystyczne, podając średnią, medianę oraz współczynnik zmienności, przy zastosowaniu programu Microsoft Excel. Wyniki: Średnia wartość energetyczna we wszystkich sezonach nie wykazała znaczących różnic. Również ilość tłuszczów i błonnika w badanych jadłospisach pokrywała zapotrzebowanie dla grupy, niezależnie od pory roku. Średnia zawartość węglowodanów mieściła się w zakresie wyliczonym dla tego składnika wyłącznie latem. Natomiast białko to składnik, którego zapotrzebowanie dla osób w wieku podeszłym było regulowane prawidłowo tylko jesienią. Wnioski: W ocenianych jadłospisach nie wykazano licznych błędów, jednak należy zwracać szczególną uwagę przy planowaniu odżywiania osób w wieku podeszłym.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Quantitative evaluation of biofilm formation in yeast nitrogen base (YNB) broth and in bovine serum (BS) of Candida albicans strains isolated from mucosal infections
Ocena ilościowa tworzenia biofilmu w YNB i surowicy przez szczepy Candida albicans izolowane z zakażeń grzybiczych błon śluzowych
Autorzy:: Krzysciak, P.
Tematy:: quantitative evaluation
biofilm formation
yeast nitrogen base
bovine serum
Candida albicans
isolation
mucosal infection
candidiasis
fungal pathogen
human disease
human infection; Pokaż więcej
Wydawca:: Polskie Towarzystwo Parazytologiczne
Powiązania:: https://bibliotekanauki.pl/articles/840735.pdf Link otwiera się w nowym oknie
Opis:: Candida albicans is a major human fungal pathogen especially as an etiologic agent of opportunistic oral and genital infections. Moreover, C. albicans can be involved in the deep infections and recent evidence suggests that the majority of diseases produced by this pathogen are associated with biofilm growth. The aims of this study were to evaluate biofilm production ability of C. albicans strains isolated from different sources, and to evaluate the effect of serum for enhancement the growth of biofilm. The strains used in this study were obtained from three sources; 12 from feces of patients with gastrointestinal disturbances, 13 from the oral cavity of patients with oral candidiasis, and 16 from the vagina of patients with Candida vulvovaginitis (CVV). Polystyrene 96-well plates were used to grow biofilms and crystal violet (CV) staining method was used to evaluate the growth. There were no differences in biofilm growth expressed as CV absorbance between C. albicans strains from different origins neither in Yeast Nitrogen Base broth (YNB) or in bovine serum (BS) (ANOVA, P=0.1648, P=0.5106, respectively). In the BS, the biofilm production was greater than in YNB medium for all samples (ANOVA, P=0.0003).
Dostawca treści:: Biblioteka Nauki

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