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"Ismail, S. A"
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Ensemble neural network models for stability prediction and optimization of hydraulic structures considering uplift pressure and exit gradient
2026
This study aims to develop a novel ensemble modeling approach that integrates artificial neural networks with finite element analysis to optimize the stability of hydraulic structures, particularly through the design of cutoff wall configurations. The research investigates the effects of varying cutoff wall positions and inclination angles on key parameters such as uplift pressure, seepage discharge, and exit gradient. Numerical simulations were performed using Geostudio SEEP/W to analyze seepage patterns across multiple configurations. The proposed methodology combines a Feed-Forward Neural Network (FFNN), XGBoost Regressor, and Support Vector Machine (SVM) with a Genetic Algorithm (GA) to create a predictive optimization framework. The findings reveal that the optimal cutoff wall inclination angle for minimizing both uplift pressure and exit gradient is 165° across all positions, while for seepage discharge, the optimal angle varies by position, ranging from 60° to 120° and increasing incrementally by 15° from upstream to downstream. The ensemble model demonstrated robust predictive performance across 5-fold cross-validation trials, achieving mean R-squared values of 0.99 ± 0.01 for uplift pressure, 0.94 ± 0.02 for seepage discharge, and 0.97 ± 0.01 for exit gradient. The small standard deviations indicate consistent performance across different data partitions, validating model stability and generalizability. The Genetic Algorithm results closely aligned with the numerical model outputs, validating the robustness of the proposed framework. This study introduces a significant improvement over traditional analytical methods by providing an integrated approach that enhances the safety and efficiency of hydraulic infrastructure design, particularly under complex conditions where conventional techniques may fall short.
Journal Article
The Influence of a Nanoemulsion of Cardamom Essential Oil on the Growth Performance, Feed Utilization, Carcass Characteristics, and Health Status of Growing Rabbits under a High Ambient Temperature
2023
Recently, nanotechnology approaches have been employed to enhance the solubility, availability, and efficacy of phytochemicals, overcoming some industrial obstacles and natural biological barriers. In this regard, 120 clinically healthy growing V-line rabbits (5 weeks old) reared during the summer season were divided randomly into four equal experimental groups (30 rabbits each). The first group received a basal diet without the supplementation of the nanoemulsion of cardamom essential oil (NCEO) (0 g/kg diet) and served as a control (NCEO 0). The other groups were given diets containing NCEO at levels of 150 (NCEO 150), 300 (NCEO 300), and 600 (NCEO 600) mg/kg diet, respectively. The growth performance (higher LBW and ADG), feed utilization (lower FCR), dressing percentage, and relative weight of the liver were improved significantly in the NCEO-treated groups compared to the control group. Moreover, the dietary treatment significantly decreased the rectum temperature and respiration rate, minimizing the 350 and 325 mg NECO/kg diets. The erythrocyte count, hematocrit, and hemoglobin concentration were significantly increased (p < 0.05), while white blood cells were significantly diminished (p = 0.0200) in the NCEO300 and NCEO600 groups compared to the control group. Treatment with 300 or 600 mg NCEO/kg significantly increased the blood serum total protein and albumin compared to the control group. Meanwhile, the liver enzymes (AST and ALT), uric acid, and creatinine concentrations decreased significantly in the NCEO300 group compared to the control group. The concentrations of triglycerides and total cholesterol were reduced significantly by the dietary treatment. The total antioxidant capacity, dismutase activity, and glutathione concentration were significantly higher, while the malondialdehyde and protein carbonyl levels were significantly lower in the NCEO300 group than in the control. The inflammatory responses and immunity statuses were improved in the blood serum of the NCEO-treated rabbits compared to the control. Heat-stress-induced pathological perturbations in renal/hepatic tissues and NCEO co-treatment successfully re-established and recovered near-control renal–hepatic morphology. In conclusion, a dietary supplementation of NCEO (300 mg/kg) could effectively enhance growing rabbits’ growth indices, feed efficiency, redox balance, immunity, and inflammatory responses during the summer.
Journal Article
Leverage of Matricaria chamomilla L. Oil Supplementation over Ochratoxin A in Growing Quails
2024
Ochratoxin A (OTA) is one of the mycotoxins in the agriculture and livestock sectors. The poultry sector suffered from significant economic losses due to the adverse impacts of OTA on the growth rate, feed conversion ratio, and livability. Thus, the present investigation aimed to determine the impact of chamomile essential oil supplementation against OTA toxicity in growing quails. 360 one‐week‐old growing quails were distributed into six groups ( n = 60) with four replicates of 15 birds. The groups were G1 (control negative), G2 (OTA 1 mg/kg diet, control positive), G3 (chamomile oil 0.5 g/kg diet), G4 (chamomile oil 1 g/kg diet), G5 (OTA 1 mg/kg diet + chamomile oil 0.5 g/kg diet), and G6 (OTA 1 mg/kg diet + chamomile oil 1 g/kg diet). Adding OTA significantly ( P < 0.05) reduced live body weight and weight gain at 5 weeks. Feed intake at 5 weeks was nonsignificantly reduced in G3 and G4 compared to G1. G4 showed a significant ( P < 0.05) increase in weight gain and the lowest feed conversion ratio. The G2 showed the lowest superoxide dismutase (SOD), total antioxidant capacity (TAC), glutathione transferase (GST) activity, and the highest levels of malondialdehyde (MDA). Moreover, they showed a significant improvement in liver enzymes and kidney function tests and a significant ( P < 0.05) reduction in the levels of total cholesterol and triglycerides. Chamomile supplementation alone or with OTA significantly ( P < 0.05) increased immunoglobulin M, G, A, and complement 3 than OTA alone. Chamomile oil with an OTA diet or alone reduced the negative effects of OTA and improved the performance, antioxidant status, lipid profile, and immunological state of growing Japanese quails.
Journal Article
Putative effects of moringa oil or its nano-emulsion on the growth, physiological responses, blood health, semen quality, and the sperm antioxidant-related genes in ram
by
Mahmoud, Karima Gh. M.
,
Ismail, Rehab F. S. A.
,
Gad, Alaa M. A.
in
Advances in breeding and genetics to support sustainable livestock systems
,
Alanine transaminase
,
Animal Feed - analysis
2025
Phytochemicals have been effectively used to enhance the growth and productivity of farm animals, while the potential roles of essential oils and their nano-emulsions are limited. This plan was proposed to investigate the impacts of orally administered moringa oil (MO) or its nano-emulsion (NMO) on the growth, physiological response, blood health, semen attributes, and sperm antioxidant-related genes in rams. A total of 15 growing Rahmani rams were enrolled in this study and allotted into three groups. The 1
st
control group received a basal diet only and treated orally one mL of distilled water, while the 2
nd
, and 3
rd
groups received a basal diet and were orally treated with 1 mL of NMO or 2 mL of MO /head/day for 4 months, respectively. Growth, physiological response, blood health, semen quality, and antioxidant genes in sperm were assessed. The MO and NMO treatments had no significant effect on growth indices (final body weight and weight gain ) and physiological response (rectal temperature, pulse, and respiration rates) (
P
> 0.05). The NMO group had the lowest levels of MCV (mean corpuscular volume) (
P
< 0.05), while all treated groups produced higher levels of mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC) compared to those in the control group (
P
< 0.05). Aspartate transferase (AST) and total cholesterol were significantly reduced in the MO and NMO groups, while total protein and glucose levels were significantly improved in NMO group (
P
< 0.05). Serum and seminal interstitial-cell-stimulating hormone (ICSH) levels were significantly improved (
P
< 0.0001) in the NMO group. Testosterone in serum and seminal plasma was significantly improved (
P
< 0.0001) in the MO group. Total antioxidant capacity (TAC) levels showed a tendency to increase in both the MO and NMO groups, but this increase was not significant compared to the untreated group (
P
> 0.05). On the other hand, the MO group exhibited lower levels of AST and malondialdehyde (MDA), while the alanine aminotransferase (ALT) levels were the lowest in the NMO group (
P
> 0.05). Mass motility, viability, membrane integrity and sperm concentration were significantly improved in the MO group (
P
< 0.0001) compared to the other groups. The NMO group had worse expressions of
superoxide dismutase 1 (SOD1)
compared to the control and MO groups. MO group significantly upregulated the
catalase
gene compared to the other groups (
P
< 0.001). The expression of
Caspase-3
was highest in the group that received NMO compared to the other groups (
P
< 0.001). This study suggests that MO may serve as a novel therapeutic agent for improving the reproductive health in Rahmani rams.
Journal Article
Fragmentation Genetics of Vateria indica: implications for management of forest genetic resources of an endemic dipterocarp
by
Ghazoul, J
,
Ismail, S. A
,
Ravikanth, G
in
Agroforestry
,
Animal Genetics and Genomics
,
Biodiversity
2014
Tropical agro-forest landscapes are potentially valuable reserves of forest genetic resources for forestry and restoration of degraded forests. The Dipterocarpaceae is a dominant Southeast Asian family of tree species of global significance for the tropical timber industry. Very little information exists about how effective human modified landscapes are for conserving genetic diversity in dipterocarp species. This study provides a baseline for understanding how fragmented agro-forest landscapes in India sustain forest genetic resources in an endemic dipterocarp tree. We compare genetic diversity and fine-scale spatial genetic structure (FSGS) in the threatened tree species Vateria indica within an isolated and a continuous forest site in the Western Ghats, South India. We place these results in the context of dipterocarps from both the Seychelles and Borneo. Parentage analysis of 694 progeny using twelve nuclear microsatellite markers is applied to estimate pollen and seed dispersal. Using a nursery trial we evaluate effects of inbreeding on growth performance. Our results show that levels of FSGS, and gene dispersal are comparable between a small isolated and a large continuous site of V. indica. Realized long-distance pollen flow into the isolated patch appears to help maintaining genetic diversity. The nursery experiment suggests that selection favours outbred progeny. Individuals of V. indica in close proximity appear less related to each other than in another highly fragmented and endangered dipterocarp species from the Seychelles, but more related than in three dipterocarp species studied in continuous forest in Borneo. We discuss the wider implications of our findings in the context of conservation and restoration of dipterocarp forest genetic resources in fragmented populations.
Journal Article
Survey and population dynamics of land snails at Sharkia Governorate, Egypt
2024
Abstract Land snails are a destructive agricultural pest in economic crops, but the populations for that pest are highly influenced by temperature and humidity, therefore climatic changes affected their behavior, distribution and population dynamics, for these reasons researchers should follow up on the changes in their behavior, distribution, and population dynamics. In this study, a survey study was conducted to define land snail species existing at Sharkia Governorate, Egypt, from January 2019 to March 2022 in horticultural, vegetable, and field crops and study the population dynamics for the dominant land snail species. Results showed that there are six species of land snails, these species were, Monacha cartusiana, Succinea putris, Eobania vermiculata, Theba pisana, Helicella vestalis, and Cochlicella acuta. The population dynamics of two prevalent land snail species (M. cartusiana and S. putris), were conducted during two successive growing seasons, the Egyptian clover harbored the highest number of M. cartusiana followed by wheat, while the onion was the lowest one during the study period. In the same trends, the land snail S. putris recorded the highest numbers during the growing season of the Egyptian clover crop. Finally, it is concluded that the land snail M. cartusiana considered the first grade of infestation existed everywhere at Sharkia Governorate, and the population density of the land snail is increase gradually after winter till reach the maximum density in spring. Resumo Os caracóis terrestres são pragas agrícolas destrutivas em cultivos econômicos, todavia, as populações dessa praga são altamente influenciadas pela temperatura e umidade, portanto as mudanças climáticas afetam seu comportamento, distribuição e dinâmica populacional, e, por essas razões, os pesquisadores devem acompanhar as mudanças em seu comportamento, distribuição e dinâmica populacional. O presente trabalho foi realizado para definir as espécies de caracóis terrestres existentes na província de Sharkia, no Egito, de janeiro de 2019 a março de 2022 em culturas hortícolas, vegetais e de campo, e estudar a dinâmica populacional das espécies dominantes de caracóis terrestres. Os resultados mostraram que existem seis espécies de caracóis terrestres, essas espécies foram Monacha cartusiana, Succinea putris, Eobania vermiculata, Theba pisana, Helicella vestalis e Cochlicella acuta. A dinâmica populacional de duas espécies predominantes de caracóis terrestres (M. cartusiana e S. putris), foi conduzida durante duas safras sucessivas, o trevo egípcio abrigou o maior número de M. cartusiana seguido pelo trigo, enquanto a cebola foi o menor durante o período de estudo. Seguindo as mesmas tendências, o caracol terrestre S. putris registrou os números mais altos durante a estação de crescimento da cultura do trevo egípcio. Finalmente, conclui-se que o caracol terrestre M. cartusiana, considerado o primeiro grau de infestação, está presente em toda a província de Sharkia, e a densidade populacional do caracol terrestre aumenta gradualmente após o inverno até atingir a densidade máxima na primavera.
Journal Article
Dermatofibrosarcoma Protuberance of the Breast: a Diagnostic Challenge
2017
Dermatofibrosarcoma protuberans (DFSP) is an uncommon slow growing neoplasm of the dermis with tendency to invade the subcutaneous tissues. It presents during the third to fourth decade of life and is commonly seen over the trunk, extremities and head and neck. DFSP presenting as a breast lump is rare but few cases have been reported in the literature. Pre-operative diagnosis with mammography, ultrasonography and FNAC is challenging. We report a case of a DFSP of the right breast in a middle aged lady with history of recurrent breast lumps excised and diagnosed in the past as benign. She presented with progressively increasing right breast lump of 2 months duration. She underwent wide local excision and histology revealed dermatofibrosarcoma protuberans. In view of its local aggressiveness with incomplete surgical margin, mastectomy was performed.
Journal Article
Routing protocols classification for underwater wireless sensor networks based on localization and mobility
by
Ismail, A S
,
Abdel Aziz Samah
,
Wang, XingFu
in
Delay
,
Disaster management
,
Energy consumption
2022
Underwater wireless sensor network (UWSN) is a new technolog that can be used for various purposes, including ocean tracking and underwater exploration, military surveillance, disaster management, industrial applications, and scientific research. These applications require the sensed data to be routed to the destination, and this results in making the data routing one of the essential parts in designing such applications. High propagation delay, restricted bandwidth, 3D deployment, and energy constraints are some of the challenges that UWSN faces when developing routing protocols. Therefore, to mitigate these challenges, efficient routing protocols are proposed according to the specific application. This paper surveys recently routing protocols for UWSN. Furthermore, each routing protocol's main idea and essential operation are presented and its merits and demerits. There are two types of routing protocols surveyed: location-based and location-free routing protocols. Each type is divided into two sub-categories: those that take into account node mobility and those that do not. The surveyed protocols are evaluated through the analytical method in which these protocols are compared through a wide range of parameters like packet delivery ratio, end-to-end delay, energy efficiency, and reliability. Some of the surveyed protocols are evaluated through the numerical simulation method by using Aqua-Sim with NS2.30 and are compared through packet delivery ratio, end-to-end delay, and energy consumption. This survey’s core goal is to encourage more research into improving UWSN routing protocols for better underwater exploration and monitoring.
Journal Article
Bioecology and breeding performance of cattle egret (Bubulcus ibis) in selected sites at Sharkia Governorate, Egypt
by
Issa, M. A. A.
,
Ismail, S. A. A.
,
Ghaffar, R.A.
in
Agricultural ecosystems
,
Animal husbandry
,
BIOLOGY
2023
Abstract Cattle egret Bubulcus ibis, feeds on insect pests in many agro-ecosystems. Thus, there is an urgent need to study the breeding chronology of cattle egret, in order to develop suitable protection programs for this beneficial bird to perform its role as abiological control agent in Egyptian agro-ecosystems. The study was conducted at Sharkia Governorate, Egypt, from December 2018 to December 2020; in different habitats (irrigation canals, drainage canals, garbage collection areas and Abbasa ponds). The mean clutch size ranged from 2-5 eggs/nest with an incubation period ranging between 21-25 days. The mean percentage of hatching success was 90.21%, while the total number of mortality eggs was 47 and the total egg hatching was 433. Also the total number of nests located nearby tree trunks were 73, while nests located in the core of the tree were 47 nests, and nests located at the peripherals were 15 nests. Resumo A garça-vaqueira (Bubulcus ibis) alimenta-se de insetos-praga em muitos agroecossistemas. Assim, há uma necessidade urgente de estudar a cronologia reprodutiva da garça bovina, a fim de desenvolver programas de proteção adequados para que esta ave benéfica desempenhe seu papel como agente de controle biológico nos agroecossistemas egípcios. O estudo foi conduzido na província de Sharkia, no Egito, de dezembro de 2018 a dezembro de 2020; em diferentes habitats (canais de irrigação, canais de drenagem, áreas de coleta de lixo e lagoas Abbasa). O tamanho médio da ninhada variou de 2-5 ovos/ninho com um período de incubação variando entre 21-25 dias. A porcentagem média de sucesso de eclosão foi de 90,21%, enquanto o número total de ovos de mortalidade foi de 47 e o total de ovos eclodidos foi de 433. O número total de ninhos localizados próximos aos troncos das árvores foi de 73, enquanto os ninhos localizados no núcleo da árvore foram 47 ninhos, e 15 ninhos localizados nas periferias.
Journal Article
An Analytical Review on Lattice-Based Cryptography
2025
Future assaults from quantum computers will be able to resist most contemporary public key cryptosystems. Post-quantum encryption has attracted much attention recently because of the mathematical tools it provides to guard communications and data against these types of attacks. Based on the challenging mathematical difficulties in high-dimensional lattice theory, lattice-based encryption—which boasts great efficiency, reasonable size, and robust security—may be a kind of post-quantum encryption. With any chance, this survey will address all the foundations of lattice-based cryptography. The writers start by summarizing the fundamental lattice problems in mathematics. They then provide the theoretical foundation for lattice-based encryption as well as the essential cryptanalytic methods.
Journal Article