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    Wyświetlanie 1-9 z 9
    Tytuł:
    Prevalence of intestinal parasites among the population of the Gaza Strip, Palestine
    Autorzy:
    Mezeid, N.
    Shaldoum, F.
    Al-Hindi, A.I
    Mohamed, F.S.A.
    Darwish, Z.E.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/5938.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    prevalence
    intestinal parasite
    parasite
    population
    health problem
    Gaza Strip region
    Palestine
    Opis:
    Intestinal parasitic diseases in Gaza Strip are a significant health problem. The main aim of this study is to determine the prevalence of parasitic infection among patients in the five governorates of the Gaza Strip. A crosssectional parasitological survey was conducted on 600 patients. Stool specimens were examined microscopically for the presence of parasite eggs or larvae/cysts per wet amount by the saline iodine and formol-ether concentration method. Of 600 subjects examined, 245 (40.8%) were infected with one or more intestinal parasites. Entamoeba histolytica/dispar and Giardia lamblia were the most prevalent parasites amongst the population (28.8%), (9.5%). Female patients demonstrated a higher prevalence of intestinal parasitic infections (42.7%) than males (39.0%). However, this difference was not significant (p>0.05). According to occupation, the rate of infection was highest among farmers (56.0%), followed by employers (44.2%) with laborers showing the lowest rate (30.17%). These differences in occupational prevalence were found to be statistically significant (p<0.05). The present study demonstrates that intestinal protozoan infections are still a public health problem in the Gaza strip, with Entamoeba and Giardia infections being most common. Therefore, it is necessary to develop effective prevention and control strategies, including health education and environmental sanitation improvement.
    Źródło:
    Annals of Parasitology; 2014, 60, 4
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of compression modalities for recovery on wrestlers’ biomarkers in one day tournament
    Autorzy:
    Ghoraba*a, Mohamed S.
    Ghazy, Marwa F.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030796.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
    Tematy:
    Compression modalities
    glucose level “GL”
    lactic acid “LA”
    recovery
    serum creatinine “SCR”
    wrestling
    Opis:
    The aim of the study was to investigate the effect of different compression modalities as to recovery enhancement on some biomarkers in wrestlers. Serum creatinine, lactic acid and glucose level were tested in elite wrestlers before a match-up, 3 minutes post-match up and 19 minutes after applying recovery compression model. The results showed insignificant differences between pre-post 3-minutes tests among research groups due to sample equality, 3-minutes and 19-minutes post match up tests showed efficacy of compression technique in enhancing recovery in sake of 160/20 mmHg compression modality with enhancement percentage of 16.614% for serum creatinine, 43.214% for lactic acid and 22.505% for glucose level. The compression band with 160/20 mmHg exceeds recovery after match-up.
    Źródło:
    Central European Journal of Sport Sciences and Medicine; 2019, 28, 4; 39-52
    2300-9705
    2353-2807
    Pojawia się w:
    Central European Journal of Sport Sciences and Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Potential toxicity assessment of novel selected pesticides against sand termite, Psammotermes hypostoma Desneux workers (Isoptera: Rhinotermitidae) under field conditions in Egypt
    Autorzy:
    Ahmed, M.A.I.
    Eraky, E.-S.A.
    Mohamed, M.F.
    Soliman, A.-A.S.
    Powiązania:
    https://bibliotekanauki.pl/articles/66459.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Opis:
    The sand termite, Psammotermes hypostoma Desneux is a major pest in the New Valley Governorate, Egypt. Great efforts have been taken to control the pest. We evaluated the toxicity of four selected neonicotinoids [acetamiprid (20% SP), imidacloprid (20% SL), thiamethoxam (18.6% SC), and thiamethoxam (40% WG)], and one organophosphate pesticide [chlorpyrifos (48% EC)] against P. hypostoma workers. The investigation was done under field conditions, using the palm fronds method. However, the reduction percentages in palm fronds was recorded as the height of the sandy clay formed by termite workers on palm frond surfaces, when the fronds had been treated with a different concentration of each pesticide. The results were recorded after 15, 30, 45, and 60 days. Chlorpyrifos (48% EC) was considered the most potent pesticide among all the pesticides tested, but acetamiprid (20% SP) was considered the most toxic among the neonicotinoid pesticides tested. Moreover, the formulation of thiamethoxam (18.6% SC) was more powerful than thaimethoxam (40% WG). Furthermore, the reduction percentages on palm fronds increased significantly with an increase of the exposure period (from 15 to 60 days), as a result of the surface foraging activity of the sand termite workers. These results are given as unique and encouraging trends in controlling sand termites in Egypt.
    Źródło:
    Journal of Plant Protection Research; 2015, 55, 2
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Management of potato virus Y (PVY–NTN) causing potato tuber necrotic ringspot disease (PTNRD) in potato by prior treatment with a mild PVY strain
    Autorzy:
    Abdalla, O.A.
    Eraky, A.I.
    Mohamed, S.A.
    Fahmy, F.G.
    Powiązania:
    https://bibliotekanauki.pl/articles/65943.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Egypt
    pest management
    potato virus Y
    potato tuber
    necrotic ringspot disease
    potato
    plant protection
    mild strain
    treatment
    Opis:
    Potato virus Y (PVY) is one of the most destructive viruses infecting potato in Egypt and worldwide. Recent research has shown that a necrotic PVY-NTN strain is infecting potato in Upper Egypt. Chemical control is not effective to control this viral pathogen. An alternative to control PVY infecting potato is using a mild PVY strain to elicit systemic cross protection in potato plants against infection with a severe necrotic strain of PVY. Results of this study showed that a PVY necrotic strain produced a significant lesser number of local lesions on diagnostic plants (Robinia pseudoacacia L.) when these plants were treated first with a mild PVY strain. Data obtained from greenhouse and field experiments indicated that treatment of potato plants (variety Burna) with a mild PVY strain significantly protected potato from infection with a severe necrotic PVY strain, and resulted in a significant increase in tuber yield compared with infected plants without prior treatment with a mild PVY strain. The highest increase in potato tuber yield was obtained when potato plants were inoculated with a mild PVY strain 3 days before challenging with the severe necrotic PVY strain. This study proved that using a mild strain of PVY can significantly protect potato plants from infection with a severe strain of this virus under both greenhouse and field conditions and can present a potential method to reduce losses due to infection of this virus in Assiut governorate and Upper Egypt.
    Źródło:
    Journal of Plant Protection Research; 2018, 58, 2
    1427-4345
    Pojawia się w:
    Journal of Plant Protection Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quality assessment of the essential oil from Eucalyptus globulus Labill of Blida (Algeria) origin
    Autorzy:
    Boukhatem, M. N.
    Amine, F. M.
    Kameli, A.
    Saidi, F.
    Walid, K.
    Mohamed, S. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/411538.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Eucalyptus globulus Labill
    Chemical composition
    Essential oil
    Gas Chromatography
    Eucalyptol
    Opis:
    Despite the reputation earned by aromatic and medicinal plants of Algeria, the chemical constituents of Eucalyptus globulus essential oil (EGEO) of Blida origin has not previously been investigated. Thus, the present study has been conducted for the determination of chemical constituents and different physico-chemical properties of the EGEO. Chemical composition of the EGEO, grown in Algeria, was analysed by Gas Chromatography-Mass Spectrometry. The chemical components were identified on the basis of Retention Time and comparing with mass spectral database of standard compounds. Relative amounts of detected compounds were calculated on the basis of GC peak areas. Fresh leaves of E. globulus on steam distillation yielded 0.96 % (v/w) of essential oil whereas the analysis resulted in the identification of a total of 11 constituents, 1.8 cineole (85.8 %), α-pinene (7.2 %), and β-myrcene (1.5 %) being the main components. Other notable compounds identified in the oil were β-pinene, limonene, α-phellandrene, γ-terpinene, linalool, pinocarveol, terpinen-4-ol, and α-terpineol. The physical properties such as specific gravity, refractive index and optical rotation and the chemical properties such as saponification value, acid number and iodine number of the EGEO were examined. The oil extracted has been analyzed to have 1.4602 - 1.4623 refractive index value, 0.918 - 0.919 specific gravity (sp.gr.), +9 - +10 optical rotation that satisfy the standards stipulated by European Pharmacopeia. All the physical and chemical parameters were in the range indicated by the ISO standards. Our findings will help to access the quality of the Eucalyptus oil which is important in the production of high value essential oils that will help to improve the economic condition of the community as well as the nation.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 17, 3; 303-315
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Extended finite element numerical analysis of scale effect in notched glass fiber reinforced epoxy composite
    Rozszerzona analiza numeryczna metodą elementów skończonych efektu skali w epoksydowym kompozycie z karbem wzmocnionym włóknem szklanym
    Autorzy:
    Abdellah, M. Y.
    Alsoufi, M. S.
    Hassan, M. K.
    Ghulman, H. A.
    Mohamed, A. F.
    Powiązania:
    https://bibliotekanauki.pl/articles/139922.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    XFEM
    extended finite element method
    composite laminate
    fracture processing zone
    crack opening displacement
    rozszerzona metoda elementów skończonych
    laminat kompozytowy
    strefa procesu pęknięcia
    przemieszczenie otworu szczeliny
    Opis:
    Nominal strength reduction in cross ply laminates of [0/90]2s is observed in tensile tests of glass fiber composite laminates having central open hole of diameters varying from 2 to 10 mm. This is well known as the size effect. The extended finite element method (XFEM) is implemented to simulate the fracture process and size effect (scale effect) in the glass fiber reinforced polymer laminates weakened by holes or notches. The analysis shows that XFEM results are in good agreement with the experimental results specifying nominal strength and in good agreement with the analytical results based on the cohesive zone model specifying crack opening displacement and the fracture process zone length.
    Zmniejszenie nominalnej wytrzymałości laminatu warstwowego z poprzecznym ułożeniem włókien typu [0/90]2s jest obserwowane dla naprężeń rozciągających w laminatach kompozytowych z włóknem szklanym mających centralny otwór o średnicy od 2 do 10 mm. Jest to dobrze znany efekt rozmiaru (efekt skali). Rozszerzona analiza metodą elementów skończonych (XFEM) została zastosowana w celu symulacji procesu pękania i efektu skali w polimerowych laminatach z włóknem szklanym osłabionych obecnością karbu lub otworu. W pracy wykazano, że wyniki metody XFEM dotyczące wytrzymałości nominalnej są zgodne z danymi eksperymentalnymi, dobrze zgadzają sią z wynikami analitycznymi opartymi na modelu strefy spójnej i pozwalają określić przemieszczenie otworu szczeliny i długość strefy procesu pęknięcia.
    Źródło:
    Archive of Mechanical Engineering; 2015, LXII, 2; 217-236
    0004-0738
    Pojawia się w:
    Archive of Mechanical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Seed Quality and Protein Classification of Some Quinoa Varieties
    Autorzy:
    Abd El-Hakim, Ahmed F.
    Mady, Emad
    Abou Tahoun, Ayman M.
    Ghaly, Mohammed S. A.
    Eissa, Mohamed A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2025743.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    quinoa
    seed vigour
    seed quality
    amino acids composition
    agro-climatic zone
    Opis:
    Quinoa plants, originating from the Andean mountains in South America, have a large scale of biological diversity. Along with the cultivation favorableness of quinoa, it reveals superior nutrition aspects. In comparison with cereal crops, like rice, maize, and wheat, quinoa seeds contain valuable quantities of protein of remarkable quality. The current study compared four quinoa cultivars from different origins in terms of protein composition and germinability. In addition, this study focused on the effect of different geographical cultivation areas on the protein composition of wild Egyptian quinoa seeds and three other cultivars that vary in their cultivation origins. Significant differences were observed among the quinoa varieties in the germination percentage (GP), shoot length (SL), and root length (RL). Using the technology of Near-InfraRed Spectroscopy, the highest protein value was recorded for the American variety (18.39%), followed by the Wild Egyptian variety (17.16%). The aromatic phenylalanine recorded the highest concentration of the essential amino acid bulk. The Rainbow variety contained 12.7 g-aa/kg protein, followed by the wild Egyptian variety with 4.9 g-aa/kg protein. In turn, glutamic was the most abundant amino acid of the non-essential amino acids, with 10.1, 4, 23.4, and 4 (g-aa/kg protein) for quinoa varieties, Wild Egyptian, American, Rainbow, Black, respectively. SDS-PAGE was used to identify the allelic variations in the seed storage protein profiles among the studied quinoa varieties. The studied quinoa varieties showed 23.81% of the polymorphism in the protein bands, with the mean band frequency of 0.881. The resulting protein bands fluctuated in the range between 115.02 and 16 kDa. With a similarity percentage (90%), Wild Egyptian and the Rainbow quinoa varieties can be classified in one clade.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 1; 24-33
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Factors affected the performance of fire clay refractory bricks
    Czynniki wpływające na wytrzymałość cegieł z gliny ogniotrwałej
    Autorzy:
    Elngar, M. A. G.
    Mohamed, F. M.
    El-Bohy, S. A. H.
    Sharaby, C. M.
    Shalabi, M. E. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/349655.pdf
    Data publikacji:
    2009
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    wytrzymałość
    kruszywo szamotowe
    kaolin
    szok termiczny
    siła kompresji
    refractory
    grog
    thermal shocks
    compressive strength
    Opis:
    In this investigation some factors affected the performance of the fire clay refractory bricks such as size of grog, percentage of water added to the raw material, percentage of grog and temperature of firing were studied. The results showed that if the percentage of grog increased the shrinkage of bricks decreased, as well as density of bricks was increasing the porosity and water absorption also increased. Furthermore, with increasing of the added water to the raw material the porosity of the bricks increased and if water absorption increased, density decreased. The characteristics of raw material by such methods as x-ray and chemical analysis were also examined.
    W pracy zbadano niektóre czynniki wpływające na wytrzymałość cegieł z gliny ogniotrwałej, tj. rozmiar kruszywa szamotowego, procent dodanej wody, zawartość procentowa kruszywa szamotowego, czy temperatura wypalania. Wyniki wskazały, że gdy zawartość procentowa kruszywa szamotowego zwiększyła się to kurczliwość cegieł malała. Analogicznie, gdy gęstość cegieł rosła, porowatość i absorpcja wody również rosła. Zwiększając ilość wody dodawanej do surowca, wywoływało się zwiększenie porowatości cegieł, zaś gdy absorpcja wody zwiększała się - gęstość materiału malała. Charakterystyka materiału za pomocą promieni X oraz analizy chemicznej została również przedstawiona.
    Źródło:
    Górnictwo i Geoinżynieria; 2009, 33, 4; 49-61
    1732-6702
    Pojawia się w:
    Górnictwo i Geoinżynieria
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    In situ thermal decomposition route: Preparation and characterization of nano nickel, cobalt, and copper oxides using an aromatic amine complexes as a low-cost simple precursor
    Autorzy:
    Refat, Moamen S.
    Mohamed, Soha F.
    Altalhi, Tariq A.
    Bakare, Safyah B.
    Al-Hazmi, Ghaferah H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1849310.pdf
    Data publikacji:
    2021
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    o-tolidine
    NiO
    Co3O4
    CuO
    XRD
    TEM
    nanoparticles
    complexation
    Opis:
    The main interest now is the development of metallic or inorganic-organic compounds to prepare nanoparticle materials. The use of new compounds could be beneficial and open a new method for preparing nanomaterials to control the size, shape, and size of the nanocrystals. In this article, the thermal decomposition of [M2(o-tol)2(H2O)8]Cl4 (where o-tol is ortho-tolidine compound, M = Ni2+, Co2+, Cu2+) new precursor complex was discussed in solid-state conditions. The thermal decomposition route showed that the synthesized three complexes were easily decomposed into NiO, Co3O4 and CuO nanoparticles. This decomposition was performed at low temperatures (~600°C) in atmospheric air without using any expensive and toxic solvent or complicated equipment. The obtained product was identified by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDX). FT-IR, XRD and EDX analyses revealed that the NiO nanoparticles exhibit a face-centered-cubic lattice structure with a crystallite size of 9–12 nm. The formation of a highly pure spinel-type Co3O4 phase with cubic structure showed that the Co3O4 nanoparticles have a sphere-like morphology with an average size of 8–10 nm. The XRD patterns of the CuO confirmed that the monoclinic phase with the average diameter of the spherical nanoparticles was approximately 9–15 nm.
    Źródło:
    Polish Journal of Chemical Technology; 2021, 23, 2; 47-53
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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