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  1. Article: Intestinal obstruction caused by catheter balloon inflation in the small intestine.

    Shaker, G / Hamed, A

    Urology case reports

    2023  Volume 50, Page(s) 102533

    Abstract: We present a unique case of small bowel obstruction secondary to a urethral catheter balloon. A gentleman at early 80s presented with a blocked catheter, passing a tiny amount of stool through the catheter. Recurrent admissions with a blocked catheter ... ...

    Abstract We present a unique case of small bowel obstruction secondary to a urethral catheter balloon. A gentleman at early 80s presented with a blocked catheter, passing a tiny amount of stool through the catheter. Recurrent admissions with a blocked catheter required washouts and exchanges by Urology. 24 hours post-catheter exchange, the patient developed signs and symptoms of SBO, including a distended abdomen, vomiting, and constipation. A CT abdomen/Pelvic revealed small bowel obstruction due to the inflated balloon of the catheter migrating to the small bowel loop. The case was managed by re-siting the catheter using flexible cystoscopy.
    Language English
    Publishing date 2023-08-16
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2745459-9
    ISSN 2214-4420
    ISSN 2214-4420
    DOI 10.1016/j.eucr.2023.102533
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book: The problems of China's health care system

    Hamed, Abdula

    reasons for this development and improvement suggestions

    (Reihe China ; 26)

    2010  

    Author's details Abdula Hamed
    Series title Reihe China ; 26
    Collection
    Language English
    Size 98 S., 21 cm
    Publisher Diplomica-Verl
    Publishing place Hamburg
    Publishing country Germany
    Document type Book
    HBZ-ID HT016840706
    ISBN 978-3-8366-9561-9 ; 3-8366-9561-8
    Database Catalogue ZB MED Medicine, Health

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  3. Article ; Online: Is the trend toward a sustainable green synthesis of copper oxide nanoparticles completely safe for Oreochromis niloticus when compared to chemical ones?: using oxidative stress, bioaccumulation, and histological biomarkers.

    Badran, Shereen R / Hamed, Aliaa

    Environmental science and pollution research international

    2024  Volume 31, Issue 6, Page(s) 9477–9494

    Abstract: Scientists worldwide have noticed that cutting-edge technologies can be used to produce nanoparticles (NPs) in a sustainable and environmentally friendly way, instead of the old methods. However, the effectiveness of this approach for aquatic ... ...

    Abstract Scientists worldwide have noticed that cutting-edge technologies can be used to produce nanoparticles (NPs) in a sustainable and environmentally friendly way, instead of the old methods. However, the effectiveness of this approach for aquatic environments and species still needs to be determined. Therefore, this study aims to compare between the toxicity of green and chemically synthesized copper oxide nanoparticles (GS and CS) CuO NPs at two different concentrations on Nile tilapia (Oreochromis niloticus) using various biomarkers. CuO NPs' formation was proved, and their different characterizations were recorded. Then, the fish samples were randomly allocated in glass aquaria into five groups: one acted as a control group, and the other groups were exposed to two concentrations (25 and 50 mg/L) of GS-CuO NPs and CS-CuO NPs, separately, for 4 days. After the experimental time, in all groups that were exposed to two concentrations of both synthesized CuO NPs, the results revealed that glutathione peroxidase (GPx), catalase (CAT), superoxide dismutase (SOD), and thiobarbituric acid reactive substances (TBARS) levels were elevated in the liver and gills compared to glutathione reduced (GSH) content, which showed a significant decline. Bioaccumulation of Cu was more prevalent in the liver than in the gills, and the highest bioaccumulation capacity was more evident in the groups exposed to CS-CuO NPs. Moreover, the bioaccumulation of Cu caused severe histological changes in the liver and gills. In conclusion, the results suggested that GS-CuO NPs revealed less toxicity than CS-CuO NPs to the examined fish. However, they are still toxic, and their toxic effect cannot be overlooked.
    MeSH term(s) Animals ; Copper/pharmacology ; Cichlids/metabolism ; Bioaccumulation ; Oxidative Stress ; Nanoparticles ; Biomarkers ; Glutathione/metabolism ; Oxides/pharmacology ; Metal Nanoparticles/toxicity
    Chemical Substances cuprous oxide (T8BEA5064F) ; Copper (789U1901C5) ; Biomarkers ; Glutathione (GAN16C9B8O) ; Oxides
    Language English
    Publishing date 2024-01-08
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-023-31707-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: A hyper-resolving polynomial aperture and its application in microscopy.

    Hamed, A M

    Beni-Suef University journal of basic and applied sciences

    2022  Volume 11, Issue 1, Page(s) 25

    Abstract: Background: A hyper-resolving aperture composed of a polynomial distribution is suggested. The point spread function (PSF) is computed and compared with that corresponding to linear, quadratic, and circular apertures. In addition, the influence of the ... ...

    Abstract Background: A hyper-resolving aperture composed of a polynomial distribution is suggested. The point spread function (PSF) is computed and compared with that corresponding to linear, quadratic, and circular apertures. In addition, the influence of the number of zones on the PSF is discussed. An application on confocal scanning laser microscope using Siemen's star pattern as an object considering the polynomial apertures is given.
    Results: We have made polynomial apertures using MATLAB code, and we tested the resolution from the computation of the cut-off spatial frequency obtained from the computation of the point spread function.
    Conclusions: We get compromised resolution and contrast for the polynomial apertures as compared with uniform circular apertures.
    Language English
    Publishing date 2022-02-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 2768279-1
    ISSN 2314-8543 ; 2314-8535 ; 2314-8543
    ISSN (online) 2314-8543
    ISSN 2314-8535 ; 2314-8543
    DOI 10.1186/s43088-022-00209-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Honey Bees Prefer Pollen Substitutes Rich in Protein Content Located at Short Distance from the Apiary.

    Ghramh, Hamed A / Khan, Khalid Ali

    Animals : an open access journal from MDPI

    2023  Volume 13, Issue 5

    Abstract: The availability of floral resources is crucial for honey bee colonies because it allows them to obtain protein from pollen and carbohydrates from nectar; typically, they consume these nutrients in the form of bee bread, which has undergone fermentation. ...

    Abstract The availability of floral resources is crucial for honey bee colonies because it allows them to obtain protein from pollen and carbohydrates from nectar; typically, they consume these nutrients in the form of bee bread, which has undergone fermentation. However, the intensification of agriculture, urbanization, changes to the topography, and harsh environmental conditions are currently impacting foraging sites due to habitat loss and scarcity of food resources. Thus, this study aimed to assess honey bee preference for various pollen substitute diet compositions. Bee colonies perform poorly because of specific environmental problems, which ultimately result in pollen scarcity. Pollen substitutes located at various distance from the bee hive were also investigated in addition to determining the preferences of honey bees for various pollen substitute diets. The local honey bee (
    Language English
    Publishing date 2023-02-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606558-7
    ISSN 2076-2615
    ISSN 2076-2615
    DOI 10.3390/ani13050885
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: A feature selection framework for anxiety disorder analysis using a novel multiview harris hawk optimization algorithm.

    Hamed, Ahmed / Mohamed, Marwa F

    Artificial intelligence in medicine

    2023  Volume 143, Page(s) 102605

    Abstract: Machine learning (ML) has demonstrated its ability to exploit important relationships within data collection, which can be used in the diagnosis, treatment, and prediction of outcomes in a variety of clinical contexts. Anxiety mental disorder analysis is ...

    Abstract Machine learning (ML) has demonstrated its ability to exploit important relationships within data collection, which can be used in the diagnosis, treatment, and prediction of outcomes in a variety of clinical contexts. Anxiety mental disorder analysis is one of the pending difficulties that ML can help with. A thorough study is demanded to gain a better understanding of this illness. Since the anxiety data is generally multidimensional, which complicates processing and as a result of technology improvements, medical data from several perspectives, known as multiview data (MVD), is being collected. Each view has its own data type and feature values, so there is a lot of diversity. This work introduces a novel preprocessing feature selection (FS) approach, multiview harris hawk optimization (MHHO), which has the potential to reduce the dimensionality of anxiety data, hence reducing analytical effort. The uniqueness of MHHO originates from combining a multiview linking methodology with the power of the harris hawk optimization (HHO) method. The HHO is used to identify the lowest optimal MVD feature subset, while multiview linking is utilized to find a promising fitness function to direct the HHO FS while accounting for all data views' heterogeneity. The complexity of MHHO is O(THL
    MeSH term(s) Humans ; Animals ; Anxiety ; Anxiety Disorders/diagnosis ; Algorithms ; Exercise ; Falconiformes
    Language English
    Publishing date 2023-06-07
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 645179-2
    ISSN 1873-2860 ; 0933-3657
    ISSN (online) 1873-2860
    ISSN 0933-3657
    DOI 10.1016/j.artmed.2023.102605
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Combined effects of naringin and doxorubicin on the JAK/STAT signaling pathway reduce the development and spread of breast cancer cells.

    Effat, Heba / Abosharaf, Hamed A / Radwan, Aliaa M

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 2824

    Abstract: Breast cancer therapy options are limited due to its late diagnosis and poor prognosis. Doxorubicin is the fundamental therapy approach for this disease. Because chemotherapy has numerous adverse effects, the scope of the existing research was to ... ...

    Abstract Breast cancer therapy options are limited due to its late diagnosis and poor prognosis. Doxorubicin is the fundamental therapy approach for this disease. Because chemotherapy has numerous adverse effects, the scope of the existing research was to appraise the synergetic effect of doxorubicin and naringin and explore the underlying mechanism. The cytotoxicity of doxorubicin and naringin on MCF-7 was monitored. Furthermore, the expression of STAT3 and JAK1 as well as the apoptotic and metastatic related genes (Bax, Bcl-2, Survivin, and VEGF) were conducted by immunoblotting assay and qRT-PCR. In addition, a wound healing test was utilized to appraise the migration and metastasis of MCF-7. Our results revealed that naringin and doxorubicin had a synergetic inhibitory influence on MCF-7 cells growth and migration. The synergetic action of doxorubicin and naringin effectively hindered the expression of STAT3, JAK1, Bcl-2, Survivin, and VEGF, with a boost in the level of Bax compared to cells treated with either doxorubicin or naringin. In conclusion, our findings imply that combining doxorubicin with naringin may be a favorable strategy for inhibiting the growth of breast cancer.
    MeSH term(s) Humans ; Female ; Breast Neoplasms/pathology ; Survivin/metabolism ; bcl-2-Associated X Protein ; Vascular Endothelial Growth Factor A/pharmacology ; Apoptosis ; Doxorubicin/pharmacology ; Doxorubicin/therapeutic use ; Proto-Oncogene Proteins c-bcl-2/metabolism ; Signal Transduction ; Cell Line, Tumor ; Flavanones
    Chemical Substances Survivin ; naringin (N7TD9J649B) ; bcl-2-Associated X Protein ; Vascular Endothelial Growth Factor A ; Doxorubicin (80168379AG) ; Proto-Oncogene Proteins c-bcl-2 ; Flavanones
    Language English
    Publishing date 2024-02-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-53320-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Honey Bees Prefer Pollen Substitutes Rich in Protein Content Located at Short Distance from the Apiary

    Hamed A. Ghramh / Khalid Ali Khan

    Animals, Vol 13, Iss 885, p

    2023  Volume 885

    Abstract: The availability of floral resources is crucial for honey bee colonies because it allows them to obtain protein from pollen and carbohydrates from nectar; typically, they consume these nutrients in the form of bee bread, which has undergone fermentation. ...

    Abstract The availability of floral resources is crucial for honey bee colonies because it allows them to obtain protein from pollen and carbohydrates from nectar; typically, they consume these nutrients in the form of bee bread, which has undergone fermentation. However, the intensification of agriculture, urbanization, changes to the topography, and harsh environmental conditions are currently impacting foraging sites due to habitat loss and scarcity of food resources. Thus, this study aimed to assess honey bee preference for various pollen substitute diet compositions. Bee colonies perform poorly because of specific environmental problems, which ultimately result in pollen scarcity. Pollen substitutes located at various distance from the bee hive were also investigated in addition to determining the preferences of honey bees for various pollen substitute diets. The local honey bee ( Apis mellifera jemenitica ) colonies and different diets (four main treatments, namely, chickpea flour, maize flour, sorghum flour, wheat flour; each flour was further mixed with cinnamon powder, turmeric powder, flour only, flour mixed with both cinnamon and turmeric powder) were used. Bee pollen was used as a control. The best performing pollen substitutes were further placed at 10, 25, and 50 m distances from the apiary. Maximum bee visits were observed on bee pollen (210 ± 25.96) followed by chickpea flour only (205 ± 19.32). However, there was variability in the bee visits to the different diets (F (16,34) = 17.91; p < 0.01). In addition, a significant difference in diet consumption was observed in control (576 ± 58.85 g) followed by chickpea flour only (463.33 ± 42.84 g), compared to rest of the diets (F (16,34) = 29.75; p < 0.01). Similarly, foraging efforts differed significantly ( p < 0.01) at the observed time of 7–8 A.M., 11–12 A.M., and 4–5 P.M. at the distance of 10, 25, and 50 m away from the apiary. Honey bees preferred to visit the food source that was closest to the hive. This study should be very helpful for ...
    Keywords honey bee ; supplementary diet ; pollens ; foraging behavior ; Veterinary medicine ; SF600-1100 ; Zoology ; QL1-991
    Subject code 590
    Language English
    Publishing date 2023-02-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Book ; Conference proceedings: Technical papers composing the proceedings of the 40th Annual Rocky Mountain Bioengineering Symposium & 40th International ISA Biomedical Sciences Instrumentation Symposium

    Benghuzzi, Hamed A.

    presented at: Biloxi, Mississippi, 10 - 13 April 2003

    (Biomedical sciences instrumentation ; 39 ; Technical papers of ISA ; 437)

    2003  

    Institution Instrument Society of America
    Event/congress Rocky Mountain Bioengineering Symposium (40, 2003, BiloxiMiss.) ; International Biomedical Sciences Instrumentation Symposium (40, 2003, BiloxiMiss.)
    Author's details ISA. Ed. by: Hamed Benghuzzi
    Series title Biomedical sciences instrumentation ; 39
    Technical papers of ISA ; 437
    Collection
    Language English
    Size XVI, 504 S. : Ill., graph. Darst.
    Publishing place Research Triangle Park, NC
    Publishing country United States
    Document type Book ; Conference proceedings
    HBZ-ID HT013668248
    Database Catalogue ZB MED Medicine, Health

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  10. Article ; Online: Evaluation of queen cell acceptance and royal jelly production between hygienic and non-hygienic honey bee (Apis mellifera) colonies.

    Khan, Khalid Ali / Ghramh, Hamed A

    publication RETRACTED

    PloS one

    2022  Volume 17, Issue 3, Page(s) e0266145

    Abstract: Honey bees are crucial for pollination services globally and produce important hive products including honey, royal jelly, pollen, and propolis that are being used commercially in food, cosmetics, and alternative medicinal purposes. Among the bee ... ...

    Abstract Honey bees are crucial for pollination services globally and produce important hive products including honey, royal jelly, pollen, and propolis that are being used commercially in food, cosmetics, and alternative medicinal purposes. Among the bee products, royal jelly (RJ) has long attracted scientists' interest because of its importance in honey caste differentiation. The present research was carried out to determine the acceptance rate of queen cells, and RJ production between the hygienic and non-hygienic lines. Further, this study unveils the effect of pollen substitute diets on the queen cell acceptance rate and RJ yields between both bee stocks. Results showed that the uncapped brood cells and dead brood's removal percentage was significantly more in hygienic bee colonies in comparison to non-hygienic bee colonies (p < 0.05). The average percentage of larval acceptance was statistically higher in hygienic lines (64.33 ± 2.91%) compared to non-hygienic lines (29.67 ± 1.20%). Similarly, the RJ mean weight per colony differed statistically between both bee stocks (p<0.001), which were 12.23 ± 0.52 g and 6.72 ± 0.33 g, respectively. Moreover, our results demonstrated that a significant difference was observed in larval acceptance rate, RJ yields (per colony and per cup) between both bee stocks those fed on various diets. However, no significant difference was recorded in RJ yields (per colony and per cup) between both bee stock that feeds on either commercially available pollen or pollen substitute. This study may provide future applications in helping bee breeders to choose the bees that carry a higher level of hygienic behavior with high RJ production traits.
    MeSH term(s) Animals ; Bees ; Fatty Acids
    Chemical Substances Fatty Acids ; royal jelly (L497I37F0C)
    Language English
    Publishing date 2022-03-28
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Retracted Publication
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0266145
    Database MEDical Literature Analysis and Retrieval System OnLINE

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