The Experts below are selected from a list of 192 Experts worldwide ranked by ideXlab platform

A. M. El-hanbaly - One of the best experts on this subject based on the ideXlab platform.

  • Solution of Spencer–Lewis equation in an infinite Medium Plane and spherical geometries
    Journal of Quantitative Spectroscopy and Radiative Transfer, 2002
    Co-Authors: M.a. Abdou, A. M. El-hanbaly, A. Elgarayhi, N.k. Radwan
    Abstract:

    Abstract The total electron density and energy deposition profile for electrons incident on an aluminium slab have been studied. This has been achieved by using moment technique and Legendre expansion for solving Spencer–Lewis (S–L) equation. The solution has been obtained in two different geometries, i.e., in an infinite Medium Plane and spherical geometries. Then, numerical calculations have been done for the total electron density and energy deposition profile for electrons incident on a 0.04 ( g / cm 2 ) thick aluminium slab. The obtained results are satisfactory when compared with that found previously (Filippone, Nucl Sci Eng 95 (1987) 22).

  • On the solution of Spencer–Lewis equation in an infinite Medium
    Journal of Quantitative Spectroscopy and Radiative Transfer, 2001
    Co-Authors: S.a. El-wakil, M.a. Abdou, A. M. El-hanbaly
    Abstract:

    Abstract Two different techniques have been used to solve the Spencer–Lewis (S–L) equation in an infinite Medium Plane geometry namely, maximum entropy and flux-limited. The two solutions for the total electron density by using the flux-limited as well by means of the maximum entropy are explicitly obtained.

Juan J Loor - One of the best experts on this subject based on the ideXlab platform.

  • maternal Plane of nutrition during late gestation and weaning age alter angus simmental offspring longissimus muscle transcriptome and intramuscular fat
    PLOS ONE, 2015
    Co-Authors: Sonia J Moisa, Daniel W Shike, L M Shoup, Sandra L Rodriguezzas, Juan J Loor
    Abstract:

    In model organisms both the nutrition of the mother and the young offspring could induce long-lasting transcriptional changes in tissues. In livestock, such changes could have important roles in determining nutrient use and meat quality. The main objective was to evaluate if Plane of maternal nutrition during late-gestation and weaning age alter the offspring’s Longissimus muscle (LM) transcriptome, animal performance, and metabolic hormones. Whole-transcriptome microarray analysis was performed on LM samples of early (EW) and normal weaned (NW) Angus × Simmental calves born to grazing cows receiving no supplement [low Plane of nutrition (LPN)] or 2.3 kg high-grain mix/day [Medium Plane of nutrition (MPN)] during the last 105 days of gestation. Biopsies of LM were harvested at 78 (EW), 187 (NW) and 354 (before slaughter) days of age. Despite greater feed intake in MPN offspring, blood insulin was greater in LPN offspring. Carcass intramuscular fat content was greater in EW offspring. Bioinformatics analysis of the transcriptome highlighted a modest overall response to maternal Plane of nutrition, resulting in only 35 differentially expressed genes (DEG). However, weaning age and a high-grain diet (EW) strongly impacted the transcriptome (DEG = 167), especially causing a lipogenic program activation. In addition, between 78 and 187 days of age, EW steers had an activation of the innate immune system due presumably to macrophage infiltration of intramuscular fat. Between 187 and 354 days of age (the “finishing” phase), NW steers had an activation of the lipogenic transcriptome machinery, while EW steers had a clear inhibition through the epigenetic control of histone acetylases. Results underscored the need to conduct further studies to understand better the functional outcome of transcriptome changes induced in the offspring by pre- and post-natal nutrition. Additional knowledge on molecular and functional outcomes would help produce more efficient beef cattle.

  • Maternal Plane of Nutrition during Late Gestation and Weaning Age Alter Angus × Simmental Offspring Longissimus Muscle Transcriptome and Intramuscular Fat
    PloS one, 2015
    Co-Authors: Sonia J Moisa, Daniel W Shike, L M Shoup, Sandra L. Rodriguez-zas, Juan J Loor
    Abstract:

    In model organisms both the nutrition of the mother and the young offspring could induce long-lasting transcriptional changes in tissues. In livestock, such changes could have important roles in determining nutrient use and meat quality. The main objective was to evaluate if Plane of maternal nutrition during late-gestation and weaning age alter the offspring’s Longissimus muscle (LM) transcriptome, animal performance, and metabolic hormones. Whole-transcriptome microarray analysis was performed on LM samples of early (EW) and normal weaned (NW) Angus × Simmental calves born to grazing cows receiving no supplement [low Plane of nutrition (LPN)] or 2.3 kg high-grain mix/day [Medium Plane of nutrition (MPN)] during the last 105 days of gestation. Biopsies of LM were harvested at 78 (EW), 187 (NW) and 354 (before slaughter) days of age. Despite greater feed intake in MPN offspring, blood insulin was greater in LPN offspring. Carcass intramuscular fat content was greater in EW offspring. Bioinformatics analysis of the transcriptome highlighted a modest overall response to maternal Plane of nutrition, resulting in only 35 differentially expressed genes (DEG). However, weaning age and a high-grain diet (EW) strongly impacted the transcriptome (DEG = 167), especially causing a lipogenic program activation. In addition, between 78 and 187 days of age, EW steers had an activation of the innate immune system due presumably to macrophage infiltration of intramuscular fat. Between 187 and 354 days of age (the “finishing” phase), NW steers had an activation of the lipogenic transcriptome machinery, while EW steers had a clear inhibition through the epigenetic control of histone acetylases. Results underscored the need to conduct further studies to understand better the functional outcome of transcriptome changes induced in the offspring by pre- and post-natal nutrition. Additional knowledge on molecular and functional outcomes would help produce more efficient beef cattle.

M.a. Abdou - One of the best experts on this subject based on the ideXlab platform.

  • Solution of Spencer–Lewis equation in an infinite Medium Plane and spherical geometries
    Journal of Quantitative Spectroscopy and Radiative Transfer, 2002
    Co-Authors: M.a. Abdou, A. M. El-hanbaly, A. Elgarayhi, N.k. Radwan
    Abstract:

    Abstract The total electron density and energy deposition profile for electrons incident on an aluminium slab have been studied. This has been achieved by using moment technique and Legendre expansion for solving Spencer–Lewis (S–L) equation. The solution has been obtained in two different geometries, i.e., in an infinite Medium Plane and spherical geometries. Then, numerical calculations have been done for the total electron density and energy deposition profile for electrons incident on a 0.04 ( g / cm 2 ) thick aluminium slab. The obtained results are satisfactory when compared with that found previously (Filippone, Nucl Sci Eng 95 (1987) 22).

  • On the solution of Spencer–Lewis equation in an infinite Medium
    Journal of Quantitative Spectroscopy and Radiative Transfer, 2001
    Co-Authors: S.a. El-wakil, M.a. Abdou, A. M. El-hanbaly
    Abstract:

    Abstract Two different techniques have been used to solve the Spencer–Lewis (S–L) equation in an infinite Medium Plane geometry namely, maximum entropy and flux-limited. The two solutions for the total electron density by using the flux-limited as well by means of the maximum entropy are explicitly obtained.

Sonia J Moisa - One of the best experts on this subject based on the ideXlab platform.

  • maternal Plane of nutrition during late gestation and weaning age alter angus simmental offspring longissimus muscle transcriptome and intramuscular fat
    PLOS ONE, 2015
    Co-Authors: Sonia J Moisa, Daniel W Shike, L M Shoup, Sandra L Rodriguezzas, Juan J Loor
    Abstract:

    In model organisms both the nutrition of the mother and the young offspring could induce long-lasting transcriptional changes in tissues. In livestock, such changes could have important roles in determining nutrient use and meat quality. The main objective was to evaluate if Plane of maternal nutrition during late-gestation and weaning age alter the offspring’s Longissimus muscle (LM) transcriptome, animal performance, and metabolic hormones. Whole-transcriptome microarray analysis was performed on LM samples of early (EW) and normal weaned (NW) Angus × Simmental calves born to grazing cows receiving no supplement [low Plane of nutrition (LPN)] or 2.3 kg high-grain mix/day [Medium Plane of nutrition (MPN)] during the last 105 days of gestation. Biopsies of LM were harvested at 78 (EW), 187 (NW) and 354 (before slaughter) days of age. Despite greater feed intake in MPN offspring, blood insulin was greater in LPN offspring. Carcass intramuscular fat content was greater in EW offspring. Bioinformatics analysis of the transcriptome highlighted a modest overall response to maternal Plane of nutrition, resulting in only 35 differentially expressed genes (DEG). However, weaning age and a high-grain diet (EW) strongly impacted the transcriptome (DEG = 167), especially causing a lipogenic program activation. In addition, between 78 and 187 days of age, EW steers had an activation of the innate immune system due presumably to macrophage infiltration of intramuscular fat. Between 187 and 354 days of age (the “finishing” phase), NW steers had an activation of the lipogenic transcriptome machinery, while EW steers had a clear inhibition through the epigenetic control of histone acetylases. Results underscored the need to conduct further studies to understand better the functional outcome of transcriptome changes induced in the offspring by pre- and post-natal nutrition. Additional knowledge on molecular and functional outcomes would help produce more efficient beef cattle.

  • Maternal Plane of Nutrition during Late Gestation and Weaning Age Alter Angus × Simmental Offspring Longissimus Muscle Transcriptome and Intramuscular Fat
    PloS one, 2015
    Co-Authors: Sonia J Moisa, Daniel W Shike, L M Shoup, Sandra L. Rodriguez-zas, Juan J Loor
    Abstract:

    In model organisms both the nutrition of the mother and the young offspring could induce long-lasting transcriptional changes in tissues. In livestock, such changes could have important roles in determining nutrient use and meat quality. The main objective was to evaluate if Plane of maternal nutrition during late-gestation and weaning age alter the offspring’s Longissimus muscle (LM) transcriptome, animal performance, and metabolic hormones. Whole-transcriptome microarray analysis was performed on LM samples of early (EW) and normal weaned (NW) Angus × Simmental calves born to grazing cows receiving no supplement [low Plane of nutrition (LPN)] or 2.3 kg high-grain mix/day [Medium Plane of nutrition (MPN)] during the last 105 days of gestation. Biopsies of LM were harvested at 78 (EW), 187 (NW) and 354 (before slaughter) days of age. Despite greater feed intake in MPN offspring, blood insulin was greater in LPN offspring. Carcass intramuscular fat content was greater in EW offspring. Bioinformatics analysis of the transcriptome highlighted a modest overall response to maternal Plane of nutrition, resulting in only 35 differentially expressed genes (DEG). However, weaning age and a high-grain diet (EW) strongly impacted the transcriptome (DEG = 167), especially causing a lipogenic program activation. In addition, between 78 and 187 days of age, EW steers had an activation of the innate immune system due presumably to macrophage infiltration of intramuscular fat. Between 187 and 354 days of age (the “finishing” phase), NW steers had an activation of the lipogenic transcriptome machinery, while EW steers had a clear inhibition through the epigenetic control of histone acetylases. Results underscored the need to conduct further studies to understand better the functional outcome of transcriptome changes induced in the offspring by pre- and post-natal nutrition. Additional knowledge on molecular and functional outcomes would help produce more efficient beef cattle.

C. Y. Chen - One of the best experts on this subject based on the ideXlab platform.

  • The influence of layer thickness on the stress intensity factor of a crack lying in an (visco)elastic layer embedded in a different (visco)elastic Medium (Plane strain, mode I analysis)
    Proceedings of the Royal Society of London. Series A: Mathematical Physical and Engineering Sciences, 1997
    Co-Authors: Colin Atkinson, C. Y. Chen
    Abstract:

    We consider here a problem in which a (visco)elastic composite is composed of two dissimilar materials. One of these (Medium 2) is contained in a layer sandwiched between semi–infinite half spaces of Medium 1. In order to study the possibility of fracture within the layer (Medium 2) we consider the response to remote applied loads of a finite length crack in Medium 2. A pure opening mode (Plane strain) deformation is considered and we investigate how the stress intensity factor (SIF) varies with the thickness (2 ;h ) of the inside layer and the different properties of the two (visco)elastic media. Formulae for the SIF as a function of the thickness of the inside layer and the elastic constants are derived. Analytical results for h ; small and large are obtained as a function of the material properties and verified by numerical analysis.