82 research outputs found
Gamal M. Samadan's Quick Files
No full textThe Quick Files feature was discontinued and it’s files were migrated into this Project on March 11, 2022. The file URL’s will still resolve properly, and the Quick Files logs are available in the Project’s Recent Activity
Gamal M. Samadan's Quick Files
No full textThe Quick Files feature was discontinued and it’s files were migrated into this Project on March 11, 2022. The file URL’s will still resolve properly, and the Quick Files logs are available in the Project’s Recent Activity
Effects of difference C/N ratio on water quality of white leg shrimp (Litopenaeus vannamei) cultivation
No full textBiotechnology is used to apply technology to the C/N ratio by stimulating the activities of heterotrophic microorganisms, which derive food from carbon and nitrogen substrates in a certain ratio. The goal of this research was to see how the optimal carbon-nitrogen ratio affected water quality and floc volume in white leg shrimp (Litopenaeus vannamei) farming. This study took place in the UPT Integrated Laboratory Unkhair in Ternate City in July and August 2021. A fully randomized design (CRD) with four treatments and three replications was used in this investigation. Different C/N ratios had an effect on ammonia, nitrite, nitrate, floc volume, and feed conversion ratio, according to the research. The water quality parameters are still suitable for white leg shrimp cultivation. In white leg shrimp culture, the addition of C-organic molasses (different C/N ratios) was able to reduce the concentrations of (NH3), (NO2), and (NO3), and also greatly increase the flock volume and streamline the feed conversion ratio.
Keywords:
C/N Ratio
Vannamei
Wastewater
Bioflo
Pengaruh pemberian dosis tepung Maggot (Hermetia illucens) berbeda terhadap pertumbuhan Udang Vaname (Litopenaeus vannamei) dalam wadah terkontrol
No full textAdapting authoritarianism: institutions and co-optation in Egypt and Syria
No full textThis PhD thesis compares Egypt and Syria’s authoritarian political systems. While the tendency in social science political research treats Egypt and Syria as similarly authoritarian, this research emphasizes differences between the two systems with special reference to institutions and co-optation. Rather than reducibly understanding Egypt and Syria as sharing similar histories, institutional arrangements, or ascribing to the oft-repeated convention that “Syria is Egypt but 10 years behind,” this thesis focuses on how events and individual histories shaped each states current institutional strengthens and weaknesses. Specifically, it explains the how varying institutional politicization or de-politicization affects each state’s capabilities for co-opting elite and non-elite individuals.
Beginning with a theoretical framework that considers the limited utility of democratization and transition theoretical approaches, the work underscores the persistence and durability of authoritarianism. Chapter two details the politicized institutional divergence between Egypt and Syria that began in the 1970s. Chapter three and four examines how institutional politicization or de-politicization affects elite and non-elite individual co-optation in Egypt and Syria. Chapter five discusses the study’s general conclusions and theoretical implications.
This thesis’s argument is that Egypt and Syria co-opt elites and non-elites differently because of the varying degrees of institutional politicization in each governance system. Rather than view one country as more politically developed than the other, this work argues that Syria’s political institutions are more politicized than their Egyptian counterparts. Syria’s political arena is, thus, described as politicized-patrimonialism. Syria’s politicized-patrimonial arena produces uneven co-optation of elites and non-elites as they are diffused through competing institutions. Conversely, the Egyptian political arena remains highly personalized as weak institutions and individuals are manipulated and molded according to the president’s ruling clique. This is referred to as personalized-patrimonialism. As a consequence, Egypt’s political establishment demonstrates more flexibility in ad hoc altering and adapting its arena depending on the emergence of crises.
This study’s theoretical implications suggest that, contrary to modernization and democratization theory’s adage that institutions lead to a political development, politicized institutions within a patrimonial order actually hinder regime adaptation because consensus is harder to achieve and maintain. It is within this context that Egypt’s de-politicized institutional framework advantages its top political elite. In this reading of Egyptian and Syrian politics, Egypt’s personalized political arena is more adaptable than Syria’s. These conclusions do not indicate that political reform is a process underway in either state
Waste Water Reduction Using Four Densities of Seaweed to Improve Water Quality for White Leg Shrimp (Litopenaeus white leg) Culture: Laboratory Scale
No full textThe low environmental quality of pond water is caused, among other things, by the large amount of organic waste and nutrients (feed components) in pond water outflow. The remaining feed and feces (feces) decompose in pond water before being dumped into the nearby rivers, resulting in the discharge of high levels of nutrients and organic waste. One method for enhancing the effluent quality from aquaculture is a biofilter. In order to reduce and absorb dissolved organic contaminants, biofilters are used. It is possible to employ Gracilaria sp. as a biofilter, which is an efficient technique to increase sanitation. The study' goals were to determine how well Gracilaria sp. developed and how well seaweed absorbed N and P elements from vaname shrimp culture waste, specifically ammonia (NH3), nitrite (NO2), and nitrate (NO3). Three different treatments for the weights of the seaweed were employed in the study: 50, 75, and 100 grams. The analysis showed that the 100 g of Gracilaria sp. was very effective in absorbing N and P waste. It was discovered that N and P component absorption was, respectively, 75.10% and 75.15% effective
Carvedilol, a beta adrenoceptor blocker with antioxidative potential, attenuates cisplatin-induced nephrotoxicity in rats
No full textCorresponding Author: Ayman M. Gamal el-Din, Department of Pharmacology, College of Pharmacy, King Saud
University, P.O. Box 2457, Riyadh 11451, Kingdom of Saudi Arabia.
E-mail: [email protected] the present study, kidney damage induced by cisplatin treatment (7mg kg-1day-1) was characterized by significant increases in kidney weight as a percentage of total body weight, alterations in renal function as
serum creatinine and serum BUN levels. On the other hand, there was decrease in serum albumin and calcium levels compared with untreated control animals. In addition, cisplatin induced a significant renal oxidative stress demonstrated by elevated renal MDA, reduction of GSH and reduced activities of renal catalase and glutathione
peroxidase (GPx) compared with untreated control animals. Carvedilol-induced attenuation of cisplatin nephrotoxicity (5 mg kg-1day-1) 5 days prior to and 5 days post cisplatin was clearly manifested by the
improvement of renal dysfunction. Carvedilol administration also reduced the increased renal MDA level and restored the depleted renal GSH and antioxidant enzymes (catalase and GPx). The renoprotective effect of
carvedilolmay be attributed to its radical scavenging and antioxidant activities. In conclusion, these findings of the present study strongly suggest the role of oxidative stress in the pathophysiology of cisplatin-induced nephrotoxicity and that carvedilol can be used for the renoprotection of cisplatin-induced nephrotoxicity
Corrigendum to “Phenotypic and WGS-derived antimicrobial resistance profiles of clinical and non-clinical Acinetobacter baumannii isolates from Germany and Vietnam” [International Journal of Antimicrobial Agents, Volume 56, Issue 4, October 2020, 106127]
No full textThe authors regret and would like to add a third affiliation for the first and corresponding author Dr. Gamal Wareth, to be as the following 1. Friedrich-Loeffler-Institut, Institute of Bacterial Infections and Zoonoses (IBIZ), Jena, Germany; 2. Institute for Infectious Diseases and Infection Control, Jena University Hospital, Jena, Germany and 3. Department of Bacteriology, Immunology and Mycology, Faculty of Veterinary Medicine, Benha University, Egypt. The authors would like to apologise for any inconvenience caused
River Bar Downscaling with Bed Sills and Bottom Groynes: A Numerical Study
No full textEnvironmental Fluid Mechanic
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