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  1. Article: Physicochemical, nutritional, functional, rheological, and microbiological properties of sorghum flour fermented with baobab fruit pulp flour as starter

    Mohamed Ahmed, Isam A.

    Food Science & Nutrition, 7(2):689-699

    2019  

    Abstract: Two sorghum genotypes termed Wad‐Ahmed (high tannin) and Tabat (low tannin) in Sudan were fermented with different starter levels (0%, 25%, 50%, 75%, and 100%) of fermented baobab fruit pulp flour (FBFPF). Chemical composition, antinutrients, extracted ... ...

    Abstract Two sorghum genotypes termed Wad‐Ahmed (high tannin) and Tabat (low tannin) in Sudan were fermented with different starter levels (0%, 25%, 50%, 75%, and 100%) of fermented baobab fruit pulp flour (FBFPF). Chemical composition, antinutrients, extracted minerals, and the microbiological, physicochemical, functional, rheological, and pasting properties from the fermented flours were determined. Fermentation of both genotypes with higher levels of FBFPF starter enhanced protein, fiber, ash, and major mineral contents and extractability (p ≤ 0.05). Total acidity, bulk density, rheological properties, in vitro protein, and starch digestibility of both genotypes increased with FBFPF levels, with a concomitant decrease in pH, phytate and tannin contents, and water and fat absorption capacities (p ≤ 0.05). Microbial loads, especially lactic acid bacteria, increased with increasing FBFPF starter levels in both genotypes. Use of FBFPF as a starter in the fermentation of sorghum flour can improve the nutritional value of sorghum. This could be usefully applied to the food industry for the development of fermented sorghum products.
    Keywords Baobab fruit pulp ; antinutritional factors ; fermentation ; sorghum flour
    Language English
    Document type Article
    Database Repository for Life Sciences

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  2. Book ; Thesis: Development and evaluation of polymeric nanofibrous platforms incorporating nanoceria for wound healing

    Mohamady Hussein, Mohamed Ahmed

    2022  

    Author's details vorgelegt von Mohamed Ahmed Mohamady Hussein
    Language English
    Size 39 Seiten, Illustrationen, Diagramme
    Publishing place Aachen
    Publishing country Germany
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2022
    Note Die Dissertation besteht aus 2 Aufsätzen, die zuvor in der Zeitschrift "Polymers" (2021; 13(21):1630) und der Zeitschrift "Molecules" (2022, 27(7),2146) veröffentlicht wurden; DOI: 10.3390/polym13213630 und 10.3390/molecules27072146
    HBZ-ID HT021732386
    Database Catalogue ZB MED Medicine, Health

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    Shelf markLoan statusLocation
    2023 D 196 order for loan Magazin

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  3. Book ; Online: Global Navigation Satellite Systems : From Stellar to Satellite Navigation

    H Mohamed, Ahmed

    2013  

    Keywords Other technologies & applied sciences ; Astronautics
    Size 1 electronic resource (170 pages)
    Publisher IntechOpen
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021049729
    ISBN 9789535163527 ; 9535163523
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  4. Article: Effect of controlled surface roughness and biomimetic coating on titanium implants adhesion to the bone: An experiment animal study.

    Alkhodary, Mohamed Ahmed

    The Saudi dental journal

    2023  Volume 35, Issue 7, Page(s) 819–826

    Abstract: Introduction: Laser micromachining of titanium and its alloys can create micro-grooves with sizes similar to cell diameter of about 10 μm. Its coating with arginine-glycine-aspartic acid (RGD) may enhance cellular spreading and adhesion. This study ... ...

    Abstract Introduction: Laser micromachining of titanium and its alloys can create micro-grooves with sizes similar to cell diameter of about 10 μm. Its coating with arginine-glycine-aspartic acid (RGD) may enhance cellular spreading and adhesion. This study aimed to evaluate the effect of laser micro-grooving and laser micro-grooving combined with RGD coating on the strength of the dental implants/bone interface using destructive mechanical pullout testing in experimental animals.
    Materials and methods: In this study, the test groups consisted of 1.5-mm diameter, 5-mm long laser-grooved and laser-grooved/RGD coated titanium alloy (Ti-6Al-4 V) rods, and the control group included plain titanium alloy (Ti-6Al-4 V) rods. These rods were implanted in the mandibles of New Zealand white rabbits for 2, 4, and 6 weeks. After sacrifice, the test and control specimens were retrieved for mechanical pullout testing. The DMA 7-e was used to pull the titanium rods out of the bone, the probe position was plotted versus time graph to monitor the test progression, and the static modulus versus time graph was viewed; such graphs was then transformed into tables. The results were analyzed using the Mann-Whitney test.
    Results: The laser-grooved/RGD coated rods had significantly higher pull-out strength than the laser-grooved and control rods. Additionally, the laser-grooved rods had significantly higher pull-out strength than control rods.
    Conclusion: Two novel surface treatments were used: laser micro-grooving and tri peptide RGD coating, both of which had different effects on the dental implant interface. Laser grooving improved
    Language English
    Publishing date 2023-07-16
    Publishing country Saudi Arabia
    Document type Journal Article
    ZDB-ID 1058421-3
    ISSN 1658-3558 ; 1013-9052
    ISSN (online) 1658-3558
    ISSN 1013-9052
    DOI 10.1016/j.sdentj.2023.07.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.A 3103: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (2.OG)
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  5. Article ; Online: Effect of controlled surface roughness and biomimetic coating on titanium implants adhesion to the bone

    Mohamed Ahmed Alkhodary

    Saudi Dental Journal, Vol 35, Iss 7, Pp 819-

    An experiment animal study

    2023  Volume 826

    Abstract: Introduction: Laser micromachining of titanium and its alloys can create micro-grooves with sizes similar to cell diameter of about 10 μm. Its coating with arginine-glycine-aspartic acid (RGD) may enhance cellular spreading and adhesion. This study aimed ...

    Abstract Introduction: Laser micromachining of titanium and its alloys can create micro-grooves with sizes similar to cell diameter of about 10 μm. Its coating with arginine-glycine-aspartic acid (RGD) may enhance cellular spreading and adhesion. This study aimed to evaluate the effect of laser micro-grooving and laser micro-grooving combined with RGD coating on the strength of the dental implants/bone interface using destructive mechanical pullout testing in experimental animals. Materials and methods: In this study, the test groups consisted of 1.5-mm diameter, 5-mm long laser-grooved and laser-grooved/RGD coated titanium alloy (Ti–6Al–4 V) rods, and the control group included plain titanium alloy (Ti–6Al–4 V) rods. These rods were implanted in the mandibles of New Zealand white rabbits for 2, 4, and 6 weeks. After sacrifice, the test and control specimens were retrieved for mechanical pullout testing. The DMA 7-e was used to pull the titanium rods out of the bone, the probe position was plotted versus time graph to monitor the test progression, and the static modulus versus time graph was viewed; such graphs was then transformed into tables. The results were analyzed using the Mann-Whitney test. Results: The laser-grooved/RGD coated rods had significantly higher pull-out strength than the laser-grooved and control rods. Additionally, the laser-grooved rods had significantly higher pull-out strength than control rods. Conclusion: Two novel surface treatments were used: laser micro-grooving and tri peptide RGD coating, both of which had different effects on the dental implant interface. Laser grooving improved peri-implant bone healing, whereas RGD coating facilitated earlier bone–implant adhesion and better mineralization.
    Keywords Laser micro-grooving ; RGD coating ; Titanium implants ; White New Zealand rabbits ; Mechanical testing ; Medicine ; R ; Dentistry ; RK1-715
    Subject code 600
    Language English
    Publishing date 2023-11-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Utility of Silver-nanoparticles for Nano-fluorimetric Determination of Vancomycin Hydrochloride in Pharmaceutical Formulation and Biological Fluids: Greenness Assessment.

    Mohamed, Ahmed R

    Journal of fluorescence

    2022  Volume 32, Issue 5, Page(s) 1899–1912

    Abstract: Vancomycin hydrochloride (VANH) is a glycopeptide antibiotic commonly employed in the prophylaxis and therapy of various gram-positive bacterial life-threatening infections. Due to the narrow therapeutic window of VANH, its serum levels should be well- ... ...

    Abstract Vancomycin hydrochloride (VANH) is a glycopeptide antibiotic commonly employed in the prophylaxis and therapy of various gram-positive bacterial life-threatening infections. Due to the narrow therapeutic window of VANH, its serum levels should be well-monitored to avoid its toxicity and to optimize its therapy. Herein, an innovative silver-nanoparticles enhanced fluorescence technique was designed for VANH rapid analysis in its pharmaceutical formulation and biological fluids. This technique is based on reinforcement of VANH fluorescence intensity with silver-nanoparticles that were synthesized by a redox reaction between VANH and silver nitrate in NaOH alkaline medium using polyvinylpyrrolidone as a stabilizer. The produced silver-nanoparticles were characterized by using UV-visible spectroscopy where they have an intense absorption maximum at 415 nm and transmission electron microscope (TEM) micrograph where they are spherical in shape with smooth surface morphology and size of 10.74 ± 2.44 nm. The fluorescence intensity was measured at 394 nm after excitation at 259 nm. Under optimum conditions, a good linear relationship was accomplished between the VANH concentration and the fluorescence intensity in a range of (1-36) ng/mL with a limit of detection of 0.29 ng/mL. Greenness assessment was performed using two assessment tools namely; eco-scale scoring and green analytical procedure index revealing excellent greenness of the proposed technique. The proposed technique was validated according to the International Conference on Harmonisation (ICH) recommendations and statistically compared with the reported HPLC method revealing no significant difference concerning accuracy and precision at p = 0.05. The proposed technique depended primarily on water as a cheap and eco-friendly solvent.
    MeSH term(s) Anti-Bacterial Agents/chemistry ; Drug Compounding ; Metal Nanoparticles/chemistry ; Silver ; Vancomycin/chemistry
    Chemical Substances Anti-Bacterial Agents ; Silver (3M4G523W1G) ; Vancomycin (6Q205EH1VU)
    Language English
    Publishing date 2022-06-25
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2016892-5
    ISSN 1573-4994 ; 1053-0509
    ISSN (online) 1573-4994
    ISSN 1053-0509
    DOI 10.1007/s10895-022-02942-1
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  7. Article ; Online: Authors' Response to Letters to the Editor of Tian Tian et al Titled "Is Really Pectointercostal Fascial Plane Block an Effective Technique For Poststernotomy Pain Control?"

    Hamed, Mohamed Ahmed

    The Clinical journal of pain

    2022  Volume 38, Issue 9, Page(s) 594

    MeSH term(s) Fascia ; Humans ; Nerve Block/methods ; Pain ; Pain Management
    Language English
    Publishing date 2022-09-01
    Publishing country United States
    Document type Letter
    ZDB-ID 632582-8
    ISSN 1536-5409 ; 0749-8047
    ISSN (online) 1536-5409
    ISSN 0749-8047
    DOI 10.1097/AJP.0000000000001061
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    Zs.A 2078: Show issues Location:
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    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
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  8. Article ; Online: Authors' Response to Letters to the Editor of Alexander Schnabel et al Titled "It Is Not Only the Heart That Hurts!"

    Hamed, Mohamed Ahmed

    The Clinical journal of pain

    2022  Volume 38, Issue 9, Page(s) 593

    MeSH term(s) Heart ; Humans
    Language English
    Publishing date 2022-09-01
    Publishing country United States
    Document type Letter
    ZDB-ID 632582-8
    ISSN 1536-5409 ; 0749-8047
    ISSN (online) 1536-5409
    ISSN 0749-8047
    DOI 10.1097/AJP.0000000000001060
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Predicting the mediating effect of resource orchestration on the relationship between leadership strategy and the resilience of Kenyan Listed Banks

    Eltigani Mohamed Ahmed

    International Journal of Research In Business and Social Science, Vol 11, Iss 6, Pp 56-

    2022  Volume 73

    Abstract: The objective of this study was to quantitatively assess the mediating effect of resource orchestration on the relationship between leadership strategy and organisational resilience of banks listed in the Nairobi Securities Exchange with an objective to ... ...

    Abstract The objective of this study was to quantitatively assess the mediating effect of resource orchestration on the relationship between leadership strategy and organisational resilience of banks listed in the Nairobi Securities Exchange with an objective to contribute to knowledge production in the Global South using Kenya as the vantage point. The study applied a correlation research design, and data was gathered from a stratified random sample of 184 senior managers drawn across the 12 listed banks, wherein Likert-scale questionnaires were administered to the research participants online. Partial Least Squares Structural Equation Modelling was deployed for data analysis using SmartPLS software. Results showed that the mediated path explained 79.1% of the variance in organisational resilience (R2=0.791). The results were validated with a Sobel test that found a significant partial mediation in the model with Z=6.380 (p<0.05). The study inferred a strong and statistically significant mediation power of resource orchestration in the leadership strategy-organisational resilience nexus. Resource Orchestration Pecking Order was proposed as an outcome of the empirical analysis, and future research directions were suggested.
    Keywords resource orchestration ; resource slack ; bank resilience ; pecking order ; Social Sciences ; H
    Language English
    Publishing date 2022-09-01T00:00:00Z
    Publisher Ümit Hacıoğlu
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article: Prevalence and Risk Factors of New-onset Diabetes after Transplant in East Africans.

    Nasir, Salsabil Osman / McCarthy, Helen / Mohamed Ahmed, Ihab Abdel-Rahim

    Saudi journal of kidney diseases and transplantation : an official publication of the Saudi Center for Organ Transplantation, Saudi Arabia

    2024  Volume 34, Issue 4, Page(s) 331–336

    Abstract: Very little is known about the prevalence of new-onset diabetes after transplant (NODAT) in sub-Saharan and Eastern Africans. Most of the data are related to African Americans and to North and South Africans. The aims of this study were to examine the ... ...

    Abstract Very little is known about the prevalence of new-onset diabetes after transplant (NODAT) in sub-Saharan and Eastern Africans. Most of the data are related to African Americans and to North and South Africans. The aims of this study were to examine the prevalence of NODAT in Sudanese renal transplant recipients, compare it with the published literature, and identify the risk factors for developing NODAT. In total, 150 patients who received a living-related kidney transplant between January 2015 and January 2016 were included in this study. Patients with diabetic nephropathy and pretransplant diabetes were excluded. Follow-up was for 2 years after the transplant. The variables studied were age, sex, body mass index, a family history of diabetes mellitus (DM), pretransplant steroid therapy, dyslipidemia, and hepatitis C virus infection. Twenty- three patients (15.3%) developed NODAT during the study period. The mean age of the patients who developed NODAT was 39 ± 14 years, and the mean time to develop NODAT was 5.78 ± 5.9 months. In the multivariate analysis, the risk factors for developing NODAT were a family history of DM (P = 0.01) and pretransplant steroid therapy (P = 0.01). The prevalence of NODAT in this study was 15.3%, which is in line with the reported literature from North Africa. However, it was significantly lower than the reported prevalence in African Americans.
    MeSH term(s) Humans ; Adult ; Middle Aged ; Prevalence ; Immunosuppressive Agents/adverse effects ; Diabetes Mellitus/diagnosis ; Diabetes Mellitus/epidemiology ; Risk Factors ; Steroids
    Chemical Substances Immunosuppressive Agents ; Steroids
    Language English
    Publishing date 2024-02-12
    Publishing country Saudi Arabia
    Document type Journal Article
    ZDB-ID 1379955-1
    ISSN 1319-2442
    ISSN 1319-2442
    DOI 10.4103/1319-2442.395449
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    Zs.A 4735: Show issues Location:
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