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Search Results: 1 - 10 of 3496 matches for " agents "
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Lipid Oxidation in Mechanically Deboned Chicken Meat: Effect of the Addition of Different Agents  [PDF]
Juliana Bigolin, Cleusa Inês Weber, Alexandre da Trindade Alfaro
Food and Nutrition Sciences (FNS) , 2013, DOI: 10.4236/fns.2013.48A027
Abstract: The study evaluated the effect of sodium chloride (1.5%), sodium erythorbate (0.5% and 1.0%) and ascorbic acid (0.1% and 0.2%) on inhibiting lipid oxidation in mechanically deboned chicken meat (MDCM). The peroxide, acidity, pH, color and odor values of the samples were determined on the 1st, 3rd and 5th days. Treatments with sodium erythorbate and ascorbic acid had significant influence (p ≤ 0.05) on the peroxide, acidity and pH values. Ascorbic acid and erythorbate sodium were especially effective in reducing lipid oxidation in mechanically deboned chicken meat.
Motility and Functional State of the Membrane of Caprine Capacitated Spermatozoa under Different Chemical Agents  [PDF]
A. Soberano Martínez, J. Herrera Camacho, J. C. Segura Correa
Open Journal of Veterinary Medicine (OJVM) , 2012, DOI: 10.4236/ojvm.2012.23017
Abstract: The objective of this study was to test the use of a commercial extender (Triladyl) as a diluent in caprine semen refrigerated at 15℃, using caffeine (CF), heparin (HP), synthetic oviductal fluid (SOF) andtriladyl (TRY) as capacitating chemical agents at different times. Twenty ejaculates of caprine semen were collected using an artificial vagina. The ejaculates were diluted and refrigerated by three days. Evaluated the progressive motility (PM) and the functional state of the sperm plasma membrane trough fluorescent CTC staining, counting 200 spermatic cells (non-capacitated spermatozoa NCS, capacitated CS and reacting spermatozoa REA) of caprine in two capacitating agents: CAF and HEP; one culture medium:SOF and a commercial extender: TRY at 60, 120, 180 and 240 min of incubation, during 24, 48 and 72 hs. PM was high under TRY, and CS was high under the HEP treatment. TRY could be an alternative to capacitate caprine spermatozoa, keeping PM for a longer time than HEP or CAF.
Efficient Synthesis of a New Class of N-Nucleosides of 4H-Thiochromeno[2,3-d]pyrimidine-10-Sulfone as Potential Anticancer and Antibacterial Agents  [PDF]
Abdulrahman G. Alshammari, Abdel-Rhman B. A. El-Gazzar, Hend N. Hafez
International Journal of Organic Chemistry (IJOC) , 2013, DOI: 10.4236/ijoc.2013.33A003
Abstract: A highly practical and efficient preparation of 6-methy-4H-thiochromene and 7-methyl-thiochromene[2,3-d]pyrimidine derivatives was developed via a multi-component reaction of 3-methyl-thiophenol (1), aldehydes (2), and malononitrile (3). A series of pyrimidine nucleoside, thiochromene[2,3-d]pyrimidine and thiochromene[2,3-d]pyrimidine-10-sulfone was efficiently obtained. These hybrid compounds were evaluated as potential antibacterial and anticancer agents and showed encouraging biological activities. Some of these derivatives showed broad-spectrum antitumour activity against the nine tumour subpanels tested, and demonstrated significant activity in the in vitro antitumour screening expressed by MG-MID log10GI50 value of -4.55, -4.67 and -4.73 of compounds 9a, 9b and 9c, respectively.

Efficacy of Haemocoagulase as a Topical Haemostatic Agent after Minor Oral Surgical Procedures—A Prospective Study  [PDF]
Kaberi Majumder, Shalender  , J. K. Dayashankara Rao, Neelima Gehlot, Varun Arya, Vijay Siwach
International Journal of Clinical Medicine (IJCM) , 2014, DOI: 10.4236/ijcm.2014.514117
Abstract:

Purpose: Haemocoagulase is a topical haemostatic agent which provides the adequate haemostasis after minor oral surgical procedures and it has also been proved to be beneficial in promoting wound healing. The aim of this study was to check the efficacy of haemocoagulase in stopping the bleeding and its effect over wound healing after the minor oral surgical procedure. Material & Method: This study is comprised of 150 surgical sites in 75 patients. The subjects were divided into 2 groups in which Group 1 consists of 50 surgical sites in 25 patients and Group II consists of 100 surgical sites in 50 patients. Group I comprised of the group of simple extraction. In these patients one tooth socket was selected as haemocoagulase site and the other socket was the control group in which no drug was used to control haemorrhage. Group II comprised of the group of patients with bilateral impactions. 50 sockets and surgical sites were sprinkled with Haemocoagulase, and 50 sockets and surgical sites were used as control side in which no drug was used to control haemorrhage. Results: In Group I bleeding was stopped with the average time of 1.35 minutes, while at control side bleeding was stopped with the average time of 2.25 minutes. In Group II bleeding was stopped with average time for haemostasis being 1.46 minutes, while at control side the bleeding was stopped in an average time of 2.43 minutes. Conclusion: Haemocoagulase after minor oral surgery not only provides faster haemostasis but also enhances healing.

Special Issue about Advances in Physical Agents
Miguel Cazorla,Vicente Matellan
Journal of Physical Agents , 2011,
Abstract: Nowadays, there are a lot of Spanish groups which are doing research in areas related with physical agents: they use agent-based technologies concepts, especially industrial applications, robotics and domotics (physical agents) and applications related to the information society, (software agents) highlighting the similarities and synergies among physical and software agents. In this special issue we will show several works from those groups, focusing on the recent advances in Physical Agents.
Distributed Constraint Satisfaction Problems - Systematic Review
Apoorva Shukla,Rinkaj Goyal
International Journal of Engineering Science and Technology , 2010,
Abstract: Constraint Satisfaction problems are well known problems in theoretical computer science and social sciences, and its variance, Distributed constraint Satisfaction problem is a major thrust of research nowadays. A constraint satisfaction problem can be modeled with following some rules and finish the job assigned to them keeping the constraint followed. In distributed constraint satisfaction problem this final job is distributed among many nodes which are referred as agents in literature, and through mutual communication among them they have to finish the assigned job. Many algorithms are proposed to solve these problems, some of them are studied in this paper and an empirical comparison is concluded at the end of this paper.
Novel 2-pyrazoline derivatives as potential antibacterial and antifungal agents
Kini Suvarna,Gandhi A
Indian Journal of Pharmaceutical Sciences , 2008,
Abstract: The 1,3,5-trisubstituted-2-pyrazolines were synthesized by refluxing isoniazid with various substituted diarylchalcones in N,N-dimethylformamide at 120-140°. The physical and spectral data such as M.P., R f , elemental analysis, IR, NMR and Mass was obtained for the synthesized compounds and the structures were confirmed. The screening of the synthesized compounds for antimicrobial activity was performed against Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Escherichia coli and Aspergillus niger .
Diminishing Returns in the Treatment of Metastatic Colorectal Cancer: Are Patients Reaching a Survival Plateau  [PDF]
Lencioni Riccardo, Chen James
Journal of Cancer Therapy (JCT) , 2010, DOI: 10.4236/jct.2010.14030
Abstract: Despite the evolution of treatment for metastatic colorectal cancer (MCRC) over the past decade, improvements in survival endpoints have appeared to reach a plateau. The addition of expensive targeted biologic agents to the therapeutic armamentarium against MCRC have not drastically increased survival, particularly in the realm of second and third line patients, as tumor resistance remains an issue. Original approaches to treating MCRC are needed in order to raise the apparent survival ceiling in these patients.
The effect of antibacterial agents on the production of nitric oxide induced by lipopolysaccharide in mice  [PDF]
Hampartsoum Barsoumian, Fadi El-Rami, Alexander M. Abdelnoor
Advances in Bioscience and Biotechnology (ABB) , 2010, DOI: 10.4236/abb.2010.12010
Abstract: Some antibacterial agents have been shown to neutralize the biological properties of bacterial lipopolysaccharide (LPS). The aim of this study was to eluci- date the role of gentamicin, tobramycin, imipenem, tigecycline, and isoniazid in affecting the production of nitric oxide (NO) induced by LPS in mice. Groups of mice were injected intraperitoneally with LPS alone, antibacterial agent alone, or LPS in combination with an antibacterial agent. Serum NO levels were determined at 1, 3, 6 and 9 hours post-injection using the Griess reagent method. Thin layer chroma- tography was performed to determine if antibacterial agent—LPS interaction had occurred. All the antibacterial agents suppressed NO production. More- over, LPS-induced production of NO was suppressed by all the antibacterial agents, tobramycin and tigecycline being the most effective at 9 hours post-injection. Blocking of any of the stages leading to NO production by the antibacterial agents is suggested. Moreover, thin layer chromatograms obtained are suggestive of LPS-antibacterial agent interactions.
Identifying Causes Helps a Tutoring System to Better Adapt to Learners during Training Sessions  [PDF]
Usef Faghihi, Philippe Fournier-Viger, Roger Nkambou, Pierre Poirier
Journal of Intelligent Learning Systems and Applications (JILSA) , 2011, DOI: 10.4236/jilsa.2011.33016
Abstract: This paper describes a computational model for the implementation of causal learning in cognitive agents. The Conscious Emotional Learning Tutoring System (CELTS) is able to provide dynamic fine-tuned assistance to users. The integration of a Causal Learning mechanism within CELTS allows CELTS to first establish, through a mix of datamining algorithms, gross user group models. CELTS then uses these models to find the cause of users' mistakes, evaluate their performance, predict their future behavior, and, through a pedagogical knowledge mechanism, decide which tutoring intervention fits best.
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