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Wyszukujesz frazę "Jaradat, M." wg kryterium: Autor


Wyświetlanie 1-6 z 6
Tytuł:
Minimal cycle bases of the lexicographic product of graphs
Autorzy:
Jaradat, M.
Powiązania:
https://bibliotekanauki.pl/articles/743317.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
cycle space
lexicographic product
cycle basis
Opis:
A construction of minimum cycle bases of the lexicographic product of graphs is presented. Moreover, the length of a longest cycle of a minimal cycle basis is determined.
Źródło:
Discussiones Mathematicae Graph Theory; 2008, 28, 2; 229-247
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Edge maximal $C_{2k+1}$-edge disjoint free graphs
Autorzy:
Bataineh, M.
Jaradat, M.
Powiązania:
https://bibliotekanauki.pl/articles/743334.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
extremal graphs
edge disjoint
cycles
Opis:
For two positive integers r and s, (n;r,s) denotes to the class of graphs on n vertices containing no r of s-edge disjoint cycles and f(n;r,s) = max{(G):G ∈ (n;r,s)}. In this paper, for integers r ≥ 2 and k ≥ 1, we determine f(n;r,2k+1) and characterize the edge maximal members in (n;r,2k+1).
Źródło:
Discussiones Mathematicae Graph Theory; 2012, 32, 2; 271-278
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Ramsey number for theta graph versus a clique of order three and four
Autorzy:
Bataineh, M.S.A.
Jaradat, M.M.M.
Bateeha, M.S.
Powiązania:
https://bibliotekanauki.pl/articles/30148226.pdf
Data publikacji:
2014-05-01
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
Ramsey number
independent set
theta graph
complete graph
Opis:
For any two graphs $F_1$ and $F_2$, the graph Ramsey number $r(F_1, F_2)$ is the smallest positive integer $N$ with the property that every graph on at least $N$ vertices contains $F_1$ or its complement contains $F_2$ as a subgraph. In this paper, we consider the Ramsey numbers for theta-complete graphs. We determine $r(θ_n,K_m)$ for m = 2, 3, 4 and n > m. More specifically, we establish that $r(θ_n,K_m) = (n − 1)(m − 1) + 1$ for m = 3, 4 and n > m
Źródło:
Discussiones Mathematicae Graph Theory; 2014, 34, 2; 223-232
2083-5892
Pojawia się w:
Discussiones Mathematicae Graph Theory
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strategies Used by Procrastinators and Non-Procrastinators to Cope with Test Anxiety
Autorzy:
Jaradat, Abdul-Kareem M.
Powiązania:
https://bibliotekanauki.pl/articles/48511619.pdf
Data publikacji:
2024-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
coping strategies
test anxiety
procrastination
irrational delay
procrastinators
non-procrastinators
Opis:
This study aimed to investigate the relationship of academic procrastination to coping strategies with test anxiety and to explore whether there are significant differences in using these strategies between procrastinators and non-procrastinators. The study sample comprised 455 high school students (mean age was 17.04 years). Two scales were used one for measuring academic procrastination and the other for measuring coping strategies with test anxiety. The scale of coping strategies is composed of four subscales: Danger control (e.g., using time effectively), anxiety control (e.g., relaxation), anxiety repression (e.g., denial of a situation that produces test anxiety), and situation control (e.g., cheating). Data were analysed using Pearson product-moment correlation coefficients, median-split method and t-tests. Results revealed that academic procrastination correlated positively and significantly with anxiety repression and situation control, and correlated negatively and significantly with anxiety and danger control. In addition, the results showed that anxiety repression was the most common strategy used by procrastinators, while anxiety danger was the most common strategy used by non-procrastinators. Significant differences were found between procrastinators and non-procrastinators in using coping strategies, where procrastinators used more strategies of anxiety repression and situation control, whereas non-procrastinators used more strategies of danger control and anxiety control.
Źródło:
The New Educational Review; 2024, 76; 206-216
1732-6729
Pojawia się w:
The New Educational Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exposure assessment of bisphenol A by drinking coffee from plastic cups
Autorzy:
Hananeh, W.M.
Al Rukibat, R.
Jaradat, S.
Borhan Al-Zghoul, M.
Powiązania:
https://bibliotekanauki.pl/articles/2087084.pdf
Data publikacji:
2021
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
Arabian coffee
plastic
BPA
public health
Opis:
Background. Human exposure to plastic and Bisphenol-A (BPA) is very wide in food or beverage containers and baby bottles that have contacted polycarbonate and epoxy resin. Currently a traditional beverage in Arabian culture is served in plastic cups instead of glass cups in different occasions Objective. To evaluate the possible BPA leach from the grade 5 drinking coffee plastic cups into the coffee and whether the use of plastic cups instead of glass ones to serve hot Arabian coffee poses a health risk Materials and methods. Oral administration of such coffee to three different groups of rats were undertaken. Each group consisted of 10 males and 10 females. The first group (G1) was gavaged 1.5 ml of hot water in glass cups. The second group (G2) was gavaged 1.5 ml of hot water in plastic cups while the third one (G3) was gavaged 1.5 ml of Arabian coffee in plastic cups. Serum concentrations of Bisphenol-A were measured 4 weeks later. Complete postmortem examination was conducted and representative tissue samples were subjected to histopathological evaluation. Results. In the control group receiving water kept in a glass cup had 24 ± 2 μg/L serum concentration and the second group was 36 ± 4 μg/L while in the third group was 29 ± 6 μg/L. No significant postmortem changes or histopathological findings were present in the studied animals. Conclusions. Bisphenol-A can be leached from food-grade plastic cups into hot drinks within short period of time, posing a significant impact to public health.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2021, 72, 1; 49-53
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of volcanic tuff on the engineering properties of compressed earth block
Autorzy:
Edris, W. F.
Jaradat, Y.
Al Azzam, A. O.
Al Naji, H. M.
Abuzmero, S. A.
Powiązania:
https://bibliotekanauki.pl/articles/1818488.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
volcanic tuff
lime
interlocking
fibres
compressed earth block
tuf wulkaniczny
wapno
blokowanie
włókna
Opis:
Purpose: of this paper is to investigate the durability and the mechanical properties, including compressive and flexural strengths, of the locally compressed earth blocks manufactured from soil in Irbid, Jordan. Moreover, effect of volcanic tuff as new stabilizer material on properties of compressed earth block (CEB). Compressed earth block is a technique that was created to solve environmental and economic problems in construction sector. It is widespread in many countries around the world but hasn't been used in Jordan yet. Design/methodology/approach: 9 mixtures were carried out. One of this mixture is the control mix, beside other mixtures were performed by replacing soil with 40%, 10%, 10%, of sand, volcanic tuff, and lime respectively. In addition, polypropylene fibre was used. After 28 days of curing, the CEB were dried in oven at 105°C for 24 hours then tested. Findings: Show that absorption and erosion were decreased when the lime used in the soil. On the other hand, the fibres presence significantly improved the durability and mechanical properties in all mixtures. Moreover, the higher compressive strength was obtained in the mixtures which contain lime only while the higher tensile strength was obtained in the mixtures which contain lime with sand replacement. The using of volcanic tuffs produced average compressive strength values. The reason is that in the presence of lime and pozzolana (volcanic tuff) reactions take place at low and slow rate at early ages. Research limitations/implications: volcanic tuff can produce favourable compressive strengths at later ages and this is a point of interest in the future work. Originality/value: Searching for a new material as stabilizer material that improves the properties of the compressed earth block (CEB).
Źródło:
Archives of Materials Science and Engineering; 2020, 106, 1; 5--16
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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