1,751 research outputs found
Effect of dietary microalgae on growth performance and health in meat-type quails
No full textThe purpose of this work was to ascertain the impact of dietary inclusion of Dunaliella salina (Ds) and Arthrospira platensis (Ap) mixture as growth promoters on growth performance, carcass traits, liver and renal function, lipid profile, immunology and economics in quail chicks. 240 Un -sexed seven-day quail chicks were separated into four treatment groups with six replicates of ten chicks per group. The treatment groups are: control: basal diet; DsAp0.5: basal diet + 0.25 g Ds+ 0.25 g Ap/kg diet; DsAp1: basal diet + 0.50 g Ds+ 0.50 g Ap/kg diet; and DsAp2: basal diet + 1.00 g Ds+ 1.00 g Ap/kg diet. The outcomes of dietary inclusion of Ds plus Ap revealed a significant difference in live body weight at 5 week and body weight gain from (1-5wk) (P=0.049) and the group DsAp1 recorded the best results (191.19g, 5.69g). The mixture of Ds plus Ap did not significantly (P>0.05) change the feed intake during the experiment. The DsAp0.5 group significantly (P=0.019) presented the best feed conversion ratio during (1-5 wk of age) compared to the control and other groups. The finding showed a non-significant difference in carcass traits (P>0.05). Liver and kidney function markers were affected by the supplements, and DsAp2 group recorded the highest levels of total protein and albumin. The DsAp1 group significantly (P=0.003) presented the lowest level of alanine aminotransferase (ALT) and the DsAp2 group significantly (P<0.001) presented the lowest levels of aspartate aminotransferase (AST) and urea. Dietary supplementation of Ds plus Ap affected the lipid profiles of the quail. Dietary supplementation of Ds plus Ap mixture reduced the concentration of total cholesterol (TC), low-density lipoprotein (LDL), triglyceride (TG) and high-density lipoprotein (HDL) when compared to control (P<0.001). Furthermore, the immune parameters, complement 3 (C3) and lysozyme showed a non-significant variation with Ds plus Ap supplementation. The net revenue and economic efficiency of treated quails was significantly increased during the experiment (1-5 wks of age); the best values were observed in DsAp0.5 group. In conclusion, the use of Ds plus Ap mixture as growth promoters in quail diets improves the growth performance, liver functions and lipid profile
Effect of dietary microalgae on growth performance and health in meat-type quails
No full textThe purpose of this work was to ascertain the impact of dietary inclusion of Dunaliella salina
(Ds) and Arthrospira platensis (Ap) mixture as growth promoters on growth performance,
carcass traits, liver and renal function, lipid profile, immunology and economics in quail
chicks. 240 Un -sexed seven-day quail chicks were separated into four treatment groups with
six replicates of ten chicks per group. The treatment groups are: control: basal diet; DsAp0.5:
basal diet + 0.25 g Ds+ 0.25 g Ap/kg diet; DsAp1: basal diet + 0.50 g Ds+ 0.50 g Ap/kg diet;
and DsAp2: basal diet + 1.00 g Ds+ 1.00 g Ap/kg diet. The outcomes of dietary inclusion of
Ds plus Ap revealed a significant difference in live body weight at 5 week and body weight
gain from (1-5wk) (P=0.049) and the group DsAp1 recorded the best results (191.19g, 5.69g).
The mixture of Ds plus Ap did not significantly (P>0.05) change the feed intake during the
experiment. The DsAp0.5 group significantly (P=0.019) presented the best feed conversion
ratio during (1-5 wk of age) compared to the control and other groups. The finding showed a
non-significant difference in carcass traits (P>0.05). Liver and kidney function markers were
affected by the supplements, and DsAp2 group recorded the highest levels of total protein and
albumin. The DsAp1 group significantly (P=0.003) presented the lowest level of alanine
aminotransferase (ALT) and the DsAp2 group significantly (P<0.001) presented the lowest
levels of aspartate aminotransferase (AST) and urea. Dietary supplementation of Ds plus Ap
affected the lipid profiles of the quail. Dietary supplementation of Ds plus Ap mixture
reduced the concentration of total cholesterol (TC), low-density lipoprotein (LDL),
triglyceride (TG) and high-density lipoprotein (HDL) when compared to control (P<0.001).
Furthermore, the immune parameters, complement 3 (C3) and lysozyme showed a nonsignificant
variation with Ds plus Ap supplementation. The net revenue and economic
efficiency of treated quails was significantly increased during the experiment (1-5 wks of
age); the best values were observed in DsAp0.5 group. In conclusion, the use of Ds plus Ap
mixture as growth promoters in quail diets improves the growth performance, liver functions
and lipid profile
Hautverdächtig
No full textBook Title: Postcolonial Studies; Racial Profiling
Chapter Title: Hautverdächtig
Author(s): Mohamed Wa Baile, Ellen Höhne
Publisher: transcript Verlag
DOI: 10.14361/9783839441459-004
ISBN(s): 978-3-8376-4145-5, 978-3-8394-4145-9
ISSN(s): 2703-1233, 2703-124
D02. NCNPR Activities at Coy Waller Complex
No full textCorresponding author (NCNPR, School of Pharmacy): Mohamed M. Radwan, [email protected]://egrove.olemiss.edu/pharm_annual_posters/1024/thumbnail.jp
The interaction of electric fields with vesicles and cells: a study on electrodeformation and electroporation
No full textThe application of electric pulses to cells or vesicles induces complex responses. When electric field shocks are applied, a lipid membrane may become porated, which is a phenomenon known as electroporation. The lipid membrane may also deform under electromechanical and electrohydrodynamic forces, applied via electric fields,which is a phenomenon known as electrodeformation. Electroporation is widely employed in both biological research and clinical applications including areas such as drug and gene delivery, protein insertion, cancer therapy, and other processes where access to the cytoplasm is desired. Electrodeformation, on the other hand, can be harnessed as a means to probe the membrane's properties, and to detect pathological changes in cells. Despite its broad applicability, electroporation still suffers from low delivery efficiency and cell viability, in part due to a lack of a fundamental understanding of the mechanisms involved in this technique. Meanwhile, the electrodeformation phenomenon only received attention in the past decade, and therefore, a significant body of data only became available in the recent years. This is mainly due to the development of high-performance optical imaging systems which gave the opportunity to capture the dynamics associated with electrodeformation. In this work, we have designed and implemented experiments to study the electrodeformation of giant unilamellar vesicles, and to investigate the complex transport mechanisms involved in electroporation-mediated molecular delivery. In addition, we quantified the molecular uptake and cellular viability in electroporation experiments. First, we characterized the prolate deformations of giant unilamellar vesicles under strong DC electric fields. The vesicles exhibited prolate elongations along the direction of the electric field. In some cases, the aspect ratio of a deformed vesicle exceeded 10, representing a novel strong-deformation regime never before explored. Second, we studied the spatial and temporal transport of molecules via fluorescence microscopy, at the single cell level. The experimental results demonstrated that electrophoresis, not diffusion, is the dominant mode of of delivery during the pulse. Furthermore, we found that an electrokinetic mechanism known as field-amplified sample stacking (FASS) mediated an inverse correlation between delivery and the extracellular electrical conductivity. Following our accomplishment in the second task, we investigated a two-stage pulsing electroporation protocol that delivers separate pulses to porate the membrane and to electrokinetically-mediate species transport across the cell membrane. We found that while both delivery and viability are linearly dependent with respect to the duration of the second pulses, they both show a strong dependence on field strength. Moreover, a critical regime for maximized delivery and viability is achieved. This dissertation contributes to the electroporation and electrodeformation fields by generating explanations to several experimental observations based on physical mechanisms which were not previously available. In addition, the experimental tools for quantifying delivery and viability may help develop and improve the efficacy of electroporation protocols.Ph. D.Includes bibliographical referencesIncludes vitaby Mohamed M. Sadi
Syzygium aqueum: A Polyphenol- Rich Leaf Extract Exhibits Antioxidant, Hepatoprotective, Pain-Killing and Anti-inflammatory Activities in Animal Models
No full textSyzygium aqueum is widely used in folk medicine. A polyphenol-rich extract from its leaves demonstrated a plethora of substantial pharmacological properties. The extract showed solid antioxidant properties in vitro and protected human keratinocytes (HaCaT cells) against UVA damage. The extract also reduced the elevated levels of ALT, AST, total bilirubin (TB), total cholesterol (TC) and triglycerides (TG) in rats with acute CCl4 intoxication. In addition to reducing the high MDA level, the extract noticeably restored GSH and SOD to the normal control levels in liver tissue homogenates and counteracted the deleterious histopathologic changes in liver after CCl4 injection. Additionally, the extract exhibited promising anti-inflammatory activities in vitro where it inhibited LOX, COX-1, and COX-2 with a higher COX-2 selectivity than that of indomethacin and diclofenac and reduced the extent of lysis of erythrocytes upon incubation with hypotonic buffer solution. S. aqueum extract also markedly reduced leukocyte numbers with similar activities to diclofenac in rats challenged with carrageenan. Additionally, administration of the extract abolished writhes induced by acetic acid in mice and prolonged the response latency in hot plate test. Meanwhile, the identified polyphenolics from the extract showed a certain affinity for the active pockets of 5-lipoxygenase (5-LOX), cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2) explaining the observed anti-inflammatory activities. Finally, 87 secondary metabolites (mostly phenolics) were tentatively identified in the extract based on LC-MS/MS analyses. Syzygium aqueum displays good protection against oxidative stress, free radicals, and could be a good candidate for treating oxidative stress related diseases
Other title: Compounding construction congestion
No full textFinal report; Sponsoring agency: Ohio Department of Transportation, Office of Statewide Planning & Research; Contract or grant no.: 39168; "December 2024."; "Project ID Number: 118088."; "Performing Organization Name ... University of Cincinnati, Department of Civil and Architectural Engineering and Construction Management"--Technical report documentation page.; "Author(s) ... Mohamed M. Ahmed, Fady Reyad, Ahmed Mohamed, Jacob Wroten"--Technical report documentation page.; "Prepared in cooperation with the Ohio Department of Transportation and the U.S. Department of Transportation, Federal Highway Administration"--Page iii.; Additional information provided in email: Sate job number 136675.;Final report (vii, 19 pages) -- [Fact sheet] (2 unnumbered pages)This study investigated practices, systems, and tools utilized in the US to assess the congestion impact of multiple construction projects occurring simultaneously on the same route or parallel corridors. The project conducted a national scan of the literature, and an online survey followed by agency outreach via phone interviews. The primary objectives of the project were to: (1) identify the practices employed by state DOTs to quantify congestion resulting from multiple construction projects, (2) determine the conditions that trigger congestion assessments, and the associated Measures of Effectiveness (MOEs) used, and (3) identify strategies to optimize resource utilization while minimizing the impact of construction-related congestion. The project results revealed that a limited number of state DOTs systematically assess the congestion impact of multiple construction projects. Identified state DOTs use a continuum of traffic analysis tools, from basic ones such as the Highway Capacity Manual (HCM) and sketch-planning, travel demand models, to more resource-intensive complex ones such as macro-, meso-, and microsimulation software. Among those state DOTs, impact of individual projects is assessed, and Engineering Judgment is used to compound the effect of multiple projects. Multiple states are currently exploring data-driven approaches utilizing Smart Work Zone (SWZ), Work Zone Data Exchange (WZDx), INRIX, Streetlight, and BlueTOAD to assess congestion impact of construction projects. Further studies should be conducted to investigate when complex tools should be utilized, and to assess the costs and savings of developing and deploying systematic processes identified in this report
Paleoenvironmental analysis and cyclicity of the Mustahil Formation (Cretaceous of Central Somalia)
No full textA Mustahil section, measured at Bur Bitthale near Belet Uen (Central Somalia), is here described. The succession, dated as Late Aptian to Early-Middle Albian age on the basis of good faunal evidence consists of two well developed thickening-coarsening sequences, where four different facies have been recognized. The cap of both sequences is represented by a rudistid framework dominated by Eoradiolites lyratus. We interpret these cycles as shoaling up parasequences, which are the result of two depositional regressions produced by the progradation of broad shallow-water carbonate systems over the adjacent ramp and deep shelf. -from Author
Vertical Silicon Nanowires Based Directional Coupler Optical Router
No full textA fully complementary metal-oxide-semiconductor compatible optical router is demonstrated. The router structure is built using the silicon-organic hybrid platform, while its mechanism is based on the directional coupler operation. The directional coupler waveguides are formed by the arrays of silicon nanowires, while the cladding and voids between the silicon nanowires are filled with an electro-optic polymer. Routing of the optical signal is demonstrated through the change of the coupling length of the directional coupler upon voltage application. The router is characterized by the short length directional coupler of 24 ?m, and total footprint of 62 ?m 2, high extinction ratio which reaches 33 dB and low insertion losses of 1.3 dB. 2018 IEEE.Manuscript received January 25, 2018; accepted March 3, 2018. Date of publication March 12, 2018; date of current version April 6, 2018. This work was supported by the Qatar National Research Fund (member of the Qatar Foundation) under Grant NPRP7456-1-085. (Corresponding author: Sherif Mohamed.) S. Mohamed and L. Shahada are with the Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar (e-mail: [email protected]).Scopu
The size, origins, and character of Mongolia's informal sector during the transition
No full textThe explosion of informal entrepreneurial activity during Mongolia's transition to a market economy represents one of the most visible signs of change in this expansive but sparsely populated Asian country. To deepen our understanding of Mongolia's informal sector during the transition, the author merges anecdotal experience from qualitative interviews with hard data from a survey of 770 informals in Ulaanbaatar, from a national household survey, and from official employment statistics. Using varied sources, the author generates rudimentary estimates of the magnitude of, and trends in, informal activity in Mongolia, estimates that are surprisingly consistent with each other. He evaluates four types of reasons for the burst of informal activity in Mongolia since 1990: 1) The crisis of the early and mid-1990s, during which large pools of labor were released from formal employment. 2) Rural to urban migration. 3) The"market's"reallocation of resources toward areas neglected under the old system: services such as distribution and transportation. 4) The institutional environments faced by the formal and informal sectors: hindering growth of the formal sector, facilitating entry for the informal sector. Formal labor markets haven't absorbed the labor made available by the crisis and by migration and haven't fully responded to the demand for new services. The relative ease of entering the informal market explains that market's great expansion. The relative difficulty of entering formal markets is not random but is driven by policy. Improving policies in the formal sector could afford the same ease of entry there as is currently being experienced in the informal sector.Environmental Economics&Policies,Labor Policies,Economic Theory&Research,Health Economics&Finance,Public Health Promotion,Poverty Assessment,Environmental Economics&Policies,Health Economics&Finance,National Governance,Health Monitoring&Evaluation
- …
