Displaying publications 1 - 20 of 421 in total

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  1. Long-term performance evaluation of EBPR process in tropical climate: start-up, process stability, and the effect of operational pH and influent C:P ratio
    Ong YH, Chua AS, Lee BP, Ngoh GC
    Water Sci Technol, 2013;67(2):340-6.
    PMID: 23168633 DOI: 10.2166/wst.2012.552
    To date, little information is known about the operation of the enhanced biological phosphorus removal (EBPR) process in tropical climates. Along with the global concerns on nutrient pollution and the increasing array of local regulatory requirements, the applicability and compliance accountability of the EBPR process for sewage treatment in tropical climates is being evaluated. A sequencing batch reactor (SBR) inoculated with seed sludge from a conventional activated sludge (CAS) process was successfully acclimatized to EBPR conditions at 28 °C after 13 days' operation. Enrichment of Candidatus Accumulibacter phosphatis in the SBR was confirmed through fluorescence in situ hybridization (FISH). The effects of operational pH and influent C:P ratio on EBPR were then investigated. At pH 7 or pH 8, phosphorus removal rates of the EBPR processes were relatively higher when operated at C:P ratio of 3 than C:P ratio of 10, with 0.019-0.020 and 0.011-0.012 g-P/g-MLVSS•day respectively. One-year operation of the 28 °C EBPR process at C:P ratio of 3 and pH 8 demonstrated stable phosphorus removal rate of 0.020 ± 0.003 g-P/g-MLVSS•day, corresponding to effluent with phosphorus concentration <0.5 mg/L. This study provides the first evidence on good EBPR activity at relatively high temperature, indicating its applicability in a tropical climate.
    Matched MeSH terms: Solubility
  2. Evaluation of solid-state bioconversion of domestic wastewater sludge as a promising environmental-friendly disposal technique
    Hossain Molla A, Fakhru'l-Razi A, Zahangir Alam M
    Water Res, 2004 Nov;38(19):4143-52.
    PMID: 15491662
    Natural and environmental-friendly disposal of wastewater sludge is a great concern. Recently, biological treatment has played prominent roles in bioremediation of complex hydrocarbon- rich contaminants. Composting is quite an old biological-based process that is being practiced but it could not create a great impact in the minds of concerned researchers. The present study was conducted to evaluate the feasibility of the solid-state bioconversion (SSB) processes in the biodegradation of wastewater sludge by exploiting this promising technique to rejuvenate the conventional process. The Indah Water Konsortium (IWK) domestic wastewater treatment plant (DWTP) sludge was considered for evaluation of SSB by monitoring the microbial growth and its subsequent roles in biodegradation under two conditions: (i) flask (F) and (ii) composting bin (CB) cultures. Sterile and semi-sterile environments were allowed in the F and the CB, respectively, using two mixed fungal cultures, Trichoderma harzianum with Phanerochaete chrysosporium 2094 (T/P) and T. harzianum with Mucor hiemalis (T/M) and two bulking materials, sawdust (SD) and rice straw (RS). The significant growth and multiplication of both the mixed fungal cultures were reflected in soluble protein, glucosamine and color intensity measurement of the water extract. The color intensity and pH of the water extract significantly increased and supported the higher growth of microbes and bioconversion. The most encouraging results of microbial growth and subsequent bioconversion were exhibited in the RS than the SD. A comparatively higher decrease of organic matter (OM) % and C/N ratio were attained in the CB than the F, which implied a higher bioconversion. But the measurement of soluble protein, glucosamine and color intensity exhibited higher values in the F than the CB. The final pH drop was higher in the CB than the F, which implied that a higher nitrification occurred in the CB associated with a higher release of H+ ions. Both the mixed cultures performed almost equal roles in all cases except the changes in moisture content.
    Matched MeSH terms: Solubility
  3. Physico-chemical removal of iron from semi-aerobic landfill leachate by limestone filter
    Aziz HA, Yusoff MS, Adlan MN, Adnan NH, Alias S
    Waste Manag, 2004;24(4):353-8.
    PMID: 15081062
    Limestone has been proven effective in removing metals from water and wastewater. A literature review indicated that limestone is capable of removing heavy metals such as Cu, Zn, Cd, Pb, Ni, Cr, Fe and Mn are through a batch process or by filtration technique. The removal capability is reported at up to 90%. However, to date most of the studies have been focused on synthetic wastewater. The present study attempts to investigate the suitability of limestone to attenuate total iron (Fe) from semi aerobic leachate at Pulau Burung Landfill Site in Penang, Malaysia. Iron was found in significant quantities at the landfill site. The study also aims to establish the Fe isotherm and breakthrough time of the proposed limestone filter for post-treatment to the migrating landfill leachate before its release to the environment. The Fe isotherms were established using a batch equilibrium test, while the breakthrough characteristics were determined using continuous flow permeating through a limestone column. The latter was used in order to simulate the continuous flow of leachate that would occur in the proposed limestone filter. The limestone media used in the experiment contain more than 90% CaCO3 with particle sizes ranging from 2 to 4 mm. Four filter columns (each 150 mm in diameter and 1000 mm depth) were installed at the landfill site. Metal loadings were kept below 0.5 kg /m3 day and the experiment was run continuously for 30 days. Initial results indicated that 90% of Fe can be removed from the leachate based on retention time of 57.8 min and surface loading of 12.2 m3/m2 day. For the batch study on the Fe isotherm, the results indicated that limestone is potentially useful as an alternative leachate treatment system at a relatively low cost.
    Matched MeSH terms: Solubility
  4. Ultrasonic technology for value added products from feather keratin
    Azmi NA, Idris A, Yusof NSM
    Ultrason Sonochem, 2018 Oct;47:99-107.
    PMID: 29908610 DOI: 10.1016/j.ultsonch.2018.04.016
    Feather keratin is a biomass generated in excess from various livestock industries. With appropriate processing, it holds potential as a green source for degradable biopolymer that could potentially replace current fossil fuel based materials. Several processing methods have been developed, but the use of ultrasonication has not been explored. In this study, we focus on (i) comparing and optimizing the dissolution process of turkey feather keratin through sonication and conventional processes, and (ii) generating a biodegradable polymer material, as a value added product, from the dissolved keratin that could be used in packaging and other applications. Sonication of feather keratin in pure ionic liquids (ILs) and a mixture containing ILs and different co-solvents was conducted under different applied acoustic power levels. It was found that ultrasonic irradiation significantly improved the rate of dissolution of feather keratin as compared to the conventional method, from about 2 h to less than 20 min. The amount of ILs needed was also reduced by introducing a suitable co-solvent. The keratin was then regenerated, analyzed and characterized using various methods. This material holds the potential to be reused in various appliances.
    Matched MeSH terms: Solubility
  5. MECHANICAL AND PHYSICAL PROPERTIES OF BIO-NANOCOMPOSITE FILMS BASED ON CHICKEN SKIN GELATIN WITH DIFFERENT CONCENTRATION OF CHITOSAN NANOPARTICLES
    GUI CHAN LEE, NORIZAH MHD. SARBON
    UMT Journal of Undergraduate Research, 2019;2(3):1-14.
    MyJurnal
    Plastics packaging is non-biodegradable and risks to human health and environmental pollution. In contrast, gelatin-based film lack of desired mechanical, thermal and water vapour barrier properties. Thus, this study aimed to investigate the mechanical and physical properties of bio-nanocomposite films based on chicken skin gelatin with different concentration of chitosan nanoparticles (CSNPs). Gelatin/CSNPs film solutions with different CSNPs concentration (0-8%, w/w) were stirred at 45oC for 30 min and oven-dried at 45oC. Film characterization determination includes tensile strength (TS), elongation at break (EAB), Young’s modulus (YM), water solubility, water vapour permeability (WVP), film morphology and melting temperature (Tm). Results of the study indicated that incorporation of CSNPs significantly influenced film properties. The addition of CSNPs increased the TS and YM value, which lead to stronger films than the pure chicken skin gelatin films. However the addition of CSNPs decreased the EAB value. Furthermore, WVP and water solubility significantly decreased (p < 0.05) by the addition of 6% CSNPs. Morphology images showed that increased CSNPs reduced the film’s amorphous character, especially in high level, in which higher CSNPs (8%) resulted in the aggregation of particles in the composites. The nano-reinforcement films showed higher thermal stability as compared to pure chicken skin gelatin films. In conclusion, the film with 6% CSNPs showed the best formulation, as it demonstrated high in TS, YM and Tm value, while low in EAB, water solubility and WVP value compared to other films. The results presented in this study showed the feasibility of using bio-nanocomposite technology to improve the properties of biopolymer films based on chicken skin gelatin.
    Matched MeSH terms: Solubility
  6. Fulltext physicochemical properties of undulated surf clam (Paphia undulata) HYDROLYSATE AS AFFECTED BY DEGREE OF HYDROLYSIS
    YAP JAA YEE, AMIZA MAT AMIN
    UMT Journal of Undergraduate Research, 2020;2(3):15-26.
    MyJurnal
    This study aimed to determine the physicochemical properties of undulated surf clam (Paphia undulata) hydrolysate as affected by the degree of hydrolysis (DH). Three levels of DH of undulated surf clam hydrolysate were prepared which were DH 36.57% (without any enzymatic hydrolysis), DH 58.25% (0.5% Alcalase®; 5 min; pH 7.5; 60ºC) and DH 91.26% (1% Alcalase®; 30 min; pH 7.5; 60ºC). After protein hydrolysis, the undulated surf clam hydrolysates were centrifuged, and their supernatants were freeze-dried. This study found that the protein hydrolysate with lower DH (DH 36.57%) gave lower protein content and higher ash and fat contents compared to other samples (DH 58.25% and DH 91.26%). However, the carbohydrate content is similar in all samples (16.56-20.04%). This study also found that foaming properties (29.43-67.50%), emulsifying capacity (11.94-110.52%) and peptide solubility (57.61-94.08%) were affected by the DH. As DH increased, the emulsifying capacity decreased, while peptide solubility increased. While the foaming capacity increased with increasing DH until it reached a maximum value and level off afterwards. For colour parameters, although there were differences between L*, a* and b* values for all three samples, a fluctuating pattern was noted with DH. DH also did not affect the water-holding and oil-holding capacity of undulated surf clam hydrolysate. This study shows that certain physicochemical properties of undulated surf clam hydrolysate can be tailored by adjusting the degree of hydrolysis.
    Matched MeSH terms: Solubility
  7. Fulltext Microwave-assisted Preparation of Cross-linked Gelatin-Paracetamol Matrices: Optimization Using the D-optimal Design
    Kuang TK, Kang YB, Segarra I, Kanwal U, Ahsan M, Bukhari NI
    Turk J Pharm Sci, 2021 04 20;18(2):167-175.
    PMID: 33902255 DOI: 10.4274/tjps.galenos.2020.48902
    Objectives: This study was conducted to assess the effect of microwave heating on the preparation of paracetamol cross-linked gelatin matrices by using the design of experiment (DoE) approach and explore the influence of the duration of microwave irradiation, the concentrations of crosslinker, and the amount of sodium bicarbonate (salt) on paracetamol release. These parameters were also compared with those of the matrices prepared via conventional heating.

    Materials and Methods: Twenty gel matrices were prepared with different durations of microwave irradiation, amounts of maize, and concentrations of sodium bicarbonate as suggested by Design Expert (DX®). The percentage drug release, the coefficient of variance (CV) in release, and the mean dissolution time (MDT) were the properties explored in the designed experimentation.

    Results: Target responses were dependent on microwave irradiation time, cross-linker amount, and salt concentration. Classical and microwave heating did not demonstrate statistically significant difference in modifying the percentage of drug released from the matrices. However, the CVs of microwave-assisted formulations were lower than those of the gel matrices prepared via classical heating. Thus, microwave heating produced lesser variations in drug release. The optimized gel matrices demonstrated that the observed percentage of drug release, CV, and MDT were within the prediction interval generated by DX®. The release mechanism of the matrix formulations followed the Peppas-Korsmeyer anomalous transport model.

    Conclusion: The DoE-supported microwave-assisted approach could be applied to optimize the critical factors of drug release with less variation.

    Matched MeSH terms: Solubility
  8. Fulltext New protocols for the synthesis of 5-amino-7-(4-phenyl)-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate esters using an efficient additive
    Ghaffari Khaligh N, Mihankhah T, Titinchi S, Shahnavaz Z, Rafie Johan M
    Turk J Chem, 2020;44(4):1100-1109.
    PMID: 33488215 DOI: 10.3906/kim-2005-6
    This work introduces a new additive named 4,4'-trimethylenedipiperidine for the practical and ecofriendly preparation of ethyl 5-amino-7-(4-phenyl)-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate derivatives. This chemical is commercially available and easy to handle. It also possesses a low melting point and a broad liquid range temperature, high thermal stability, and good solubility in water. Based on green chemistry principles, the reaction was performed in a) a mixture of green solvents i.e. water and ethanol (1:1 v/v) at reflux temperature, and b) the additive was liquefied at 65 °C and the reaction was conducted in the liquid state of the additive. High yields of the desired triazolo-pyrimidines were obtained under both aforementioned conditions. Our results demonstrated that this additive, containing 2 Lewis base sites and able to act as an acceptor-donor hydrogen bonding group, is a novel and efficient alternative to piperidine, owing to its unique properties such as its reduced toxicity, nonflammable nature, nonvolatile state, broad liquid range temperature, high thermal stability, and ability to be safely handled. Furthermore, this additive could be completely recovered and exhibited high recyclability without any change in its chemical structure and no significant reduction in its activity. The current methodology has several advantages: (a) it avoids the use of hazardous materials, as well as toxic, volatile, and flammable solvents, (b) it does not entail tedious processes, harsh conditions, and the multistep preparation of catalysts, (c) it uses a metal-free and noncorrosive catalyst, and (d) reduces the generation of hazardous waste and simple work-up processes. The most important result of this study is that 4,4'-trimethylenedipiperidine can be a promising alternative for toxic, volatile, and flammable base reagents in organic synthesis owing to its unique properties.
    Matched MeSH terms: Solubility
  9. Solubility enhancement effect at absorption site on bioavailability of ritonavir using liquisolid technique
    Bonthagarala B, Dasari V, Kotra V
    Ther Deliv, 2019 May 01;10(5):295-310.
    PMID: 31094300 DOI: 10.4155/tde-2019-0020
    Aim: The present study revolved around determining the effect of increase in the solubility of these drugs at the absorption site using ritonavir as a drug model. Materials & methods: Ritonavir per-oral tablets were prepared using versatile and nonionic surfactants having high solubilization rate, which were further marked with high rate of dissolution. The high rate of dissolution formula applied to the solid state characterization by means of transition electron microscopy, differential scanning calorimetry, scanning electron microscopy, X-ray diffraction and infrared spectroscopy. Results & conclusion: The drug bioavailability was seen to increase expressively by administration of liquisolid tablets as compared with conventional tablets.
    Matched MeSH terms: Solubility
  10. An Application of pET SUMO Protein Expression System in Escherichia coli: Cloning, Expression, Purification, and Characterisation of Native Kras4BG12V Oncoprotein
    Tan MS, Teh YH, Ho KL, Stanslas J
    Protein J, 2020 02;39(1):54-61.
    PMID: 31620959 DOI: 10.1007/s10930-019-09872-1
    Being an important regulator of cell growth and survival, a point mutation at glycine-12 residue of Kras4B to valine (V), renders Kras4BG12V oncogenic. Kras4B recombinant protein is used as a bait to fish its potential ligands in the attempt of drugging this oncoprotein and to validate its pharmacologically relevant ligand in protein-ligand interaction studies. Nevertheless, synthesis of Kras4B recombinant protein is challenging as it was reported being susceptible to aggregation into inclusion bodies in the bacterial host, resulting in a poor yield of recombinant protein. Here, we describe a novel method to produce native Kras4BG12V protein by using pET SUMO protein expression system as a solution to the formation of inclusion bodies. Kras4BG12V oncogene was cloned into pET SUMO vector, followed by a 12 h chemically induced protein expression in Escherichia coli at 20 °C. Native Kras4BG12V protein was produced in a series of protein purification steps involving immobilised nickel ion-affinity column chromatography, SUMO fusion protein and polyhistidine tag removal, and size exclusion column chromatography. The identity of the purified Kras4BG12V protein was validated by immunoblot analysis. The purified protein exhibited self-dimerising, indicating that the purified protein structurally resembles Kras4B. Its physical interaction with 4,6-dichloro-2-methyl-3-aminoethyl-indole (DCAI), a known binder of Kras4B, confirms the identity of the purified protein as Kras4BG12V. The native Kras4BG12V protein was successfully purified in a substantial amount by using the pET SUMO protein expression system.
    Matched MeSH terms: Solubility
  11. Djenkol bean poisoning (djenkolism): proposals for treatment and prevention
    West CE, Perrin DD, Shaw DC, Heap GH, Soemanto
    Southeast Asian J. Trop. Med. Public Health, 1973 Dec;4(4):564-70.
    PMID: 4274568
    Matched MeSH terms: Solubility
  12. Detecting and predicting the impact of land use changes on groundwater quality, a case study in Northern Kelantan, Malaysia
    Sheikhy Narany T, Aris AZ, Sefie A, Keesstra S
    Sci Total Environ, 2017 Dec 01;599-600:844-853.
    PMID: 28501010 DOI: 10.1016/j.scitotenv.2017.04.171
    The conversions of forests and grass land to urban and farmland has exerted significant changes on terrestrial ecosystems. However, quantifying how these changes can affect the quality of water resources is still a challenge for hydrologists. Nitrate concentrations can be applied as an indicator to trace the link between land use changes and groundwater quality due to their solubility and easy transport from their source to the groundwater. In this study, 25year records (from 1989 to 2014) of nitrate concentrations are applied to show the impact of land use changes on the quality of groundwater in Northern Kelantan, Malaysia, where large scale deforestation in recent decades has occurred. The results from the integration of time series analysis and geospatial modelling revealed that nitrate (NO3-N) concentrations significantly increased with approximately 8.1% and 3.89% annually in agricultural and residential wells, respectively, over 25years. In 1989 only 1% of the total area had a nitrate value greater than 10mg/L; and this value increased sharply to 48% by 2014. The significant increase in nitrate was only observed in a shallow aquifer with a 3.74% annual nitrate increase. Based on the result of the Autoregressive Integrated Moving Average (ARIMA) model the nitrate contamination is expected to continue to rise by about 2.64% and 3.9% annually until 2030 in agricultural and residential areas. The present study develops techniques for detecting and predicting the impact of land use changes on environmental parameters as an essential step in land and water resource management strategy development.
    Matched MeSH terms: Solubility
  13. Fulltext Low levels of caries in aggressive periodontitis: A literature review
    Sulugodu Ramachandra S
    Saudi Dent J, 2014 Apr;26(2):47-9.
    PMID: 25408595 DOI: 10.1016/j.sdentj.2013.12.002
    This article is a traditional literature review on caries levels in aggressive periodontitis. Aggressive periodontitis generally affects systemically healthy individuals aged <30 years (older individuals can also be affected) and is characterized by a young age of onset, rapid rate of disease progression, and familial aggregation of cases. Dental caries is caused by the dissolution of enamel by acid-producing bacteria present in the plaque biofilm, especially when the biofilm reaches critical mass due to improper oral hygiene. The association between caries level and aggressive periodontitis has long been debated. Initial research indicated that caries levels were high in patients with aggressive periodontitis, but high-quality studies have consistently shown that caries and aggressive periodontitis are inversely related. A recent in vitro study showed that Streptococcus mutans was killed more readily in the saliva of patients with aggressive periodontitis and Aggregatibacter actinomycetemcomitans positivity than in patients with A. actinomycetemcomitans negativity. Other mechanisms possibly explaining the inverse relationship between caries and aggressive periodontitis in cases of Down's syndrome are also discussed in this literature review. The usefulness of caries level in the diagnosis of aggressive periodontitis in developing countries such as India, where the disease is diagnosed primarily on the basis of clinical and radiographic features and familial history is also discussed.
    Matched MeSH terms: Solubility
  14. Fulltext Mechanism of cholesterol gallstone formation
    Abu Bakar MA
    Med J Malaysia, 1987 Dec;42(4):290-3.
    PMID: 3331409
    Matched MeSH terms: Solubility
  15. Comparative study of the bioavailability and dissolution behavior of five brands of tetracycline capsules
    Gan EK, Lim BS, Mahmud N
    Med J Malaysia, 1978 Sep;33(1):72-5.
    PMID: 750900
    Matched MeSH terms: Solubility
  16. Fulltext Serum soluble FMS-like tyrosine kinase 1 and placental growth factor concentration as predictors of preeclampsia in high risk pregnant women
    Hanita O, Alia NN, Zaleha AM, Nor Azlin MI
    Malays J Pathol, 2014 Apr;36(1):19-26.
    PMID: 24763231 MyJurnal
    Soluble fms-like tyrosine kinase-1 (sFlt-1) and placental growth factor (PlGF) contribute in the development of preeclampsia and are suggested as prediction markers in healthy pregnant women but limited data is available in women with major preeclampsia risk factors. This study aimed to determine the role of sFlt-1 and PlGF in predicting preeclampsia among high risk pregnant women. This was a prospective study and samples were collected for a period of ten months. Blood samples were obtained from 84 pregnant women who had at least one risk factor for preeclampsia at 25 to 28 weeks and at 29 to 36 weeks of gestation. SFlt-1 and PlGF concentrations were determined by immunoassay method. There were significantly higher median sFlt-1 and sFlt-1:PlGF ratio at gestational interval 25 to 28 weeks and sFlt-1:PlGF ratio at 29 to 36 weeks in high risk women who developed preeclampsia. Significant lower median serum PlGF levels at 25 to 28 weeks and 29 to 36 weeks were observed in this group of women. In conclusion, the concentrations of these markers were altered in high risk preeclamptic women, a similar pattern seen in low risk preeclamptic women. However the predictive value of these markers could not be established clearly.
    Matched MeSH terms: Solubility
  17. Preparation, in-vitro and in-vivo characterisation of CoQ10 microparticles: electrospraying-enhanced bioavailability
    Fung WY, Liong MT, Yuen KH
    J Pharm Pharmacol, 2016 Feb;68(2):159-69.
    PMID: 26730452 DOI: 10.1111/jphp.12502
    OBJECTIVES: This study aimed to prepare Coenzyme Q10 (CoQ10) microparticles using electrospraying technology, and evaluate the in-vitro properties and in-vivo oral bioavailability.
    KEY FINDINGS: Electrospraying was successfully used to prepare CoQ10 to enhance its solubility and dissolution properties. In-vitro evaluation of the electrosprayed microparticles showed bioavailability-enhancing properties such as reduced crystallinity and particle size. The formulation was evaluated using dissolution study and in-vivo oral bioavailability using rat model. The dissolution study revealed enhanced dissolution properties of electrosprayed microparticles compared with physical mixture and raw material. The absorption profiles showed increasing mean plasma levels CoQ10 in the following order: raw material < physical mixture < electrosprayed microparticles.
    CONCLUSION: Based on the findings in this study, electrospraying is a highly prospective technology to produce functional nano- and micro-structures as delivery vehicles for drugs with poor oral bioavailability due to rate-limiting solubility.
    Matched MeSH terms: Solubility
  18. Increased aqueous solubility and proapoptotic activity of potassium koetjapate against human colorectal cancer cells
    Jafari SF, Khadeer Ahamed MB, Iqbal MA, Al Suede FS, Khalid SH, Haque RA, et al.
    J Pharm Pharmacol, 2014 Oct;66(10):1394-409.
    PMID: 25039905 DOI: 10.1111/jphp.12272
    Recently, we have isolated koetjapic acid (KA) from Sandoricum koetjape and identified its selective anticancer potentiality against colorectal carcinoma. KA is quite likely to be useful as a systemic anticancer agent against colorectal malignancy. However, with extremely low solubility, KA has to be converted into a biocompatible solubilized form without compromising the bioefficacy. Objective of this study is to enhance solubility of KA and to evaluate anticancer efficacy of potassium koetjapate in human colorectal cancer cells.
    Matched MeSH terms: Solubility
  19. Comparative evaluation of the degree of pegylation of poly(lactic-co-glycolic acid) nanoparticles in enhancing central nervous system delivery of loperamide
    Kirby BP, Pabari R, Chen CN, Al Baharna M, Walsh J, Ramtoola Z
    J Pharm Pharmacol, 2013 Oct;65(10):1473-81.
    PMID: 24028614 DOI: 10.1111/jphp.12125
    In this study, we examined the relative cellular uptake of nanoparticles (NPs) formulated using poly(lactic-co-glycolic acid) (PLGA) polymers with increasing degree of pegylation (PLGA-PEG) and their potential to deliver loperamide to the brain of a mouse.
    Matched MeSH terms: Solubility
  20. Fulltext Dynamic electronic institutions in agent oriented cloud robotic systems
    Nagrath V, Morel O, Malik A, Saad N, Meriaudeau F
    Springerplus, 2015;4:103.
    PMID: 25763310 DOI: 10.1186/s40064-015-0810-4
    The dot-com bubble bursted in the year 2000 followed by a swift movement towards resource virtualization and cloud computing business model. Cloud computing emerged not as new form of computing or network technology but a mere remoulding of existing technologies to suit a new business model. Cloud robotics is understood as adaptation of cloud computing ideas for robotic applications. Current efforts in cloud robotics stress upon developing robots that utilize computing and service infrastructure of the cloud, without debating on the underlying business model. HTM5 is an OMG's MDA based Meta-model for agent oriented development of cloud robotic systems. The trade-view of HTM5 promotes peer-to-peer trade amongst software agents. HTM5 agents represent various cloud entities and implement their business logic on cloud interactions. Trade in a peer-to-peer cloud robotic system is based on relationships and contracts amongst several agent subsets. Electronic Institutions are associations of heterogeneous intelligent agents which interact with each other following predefined norms. In Dynamic Electronic Institutions, the process of formation, reformation and dissolution of institutions is automated leading to run time adaptations in groups of agents. DEIs in agent oriented cloud robotic ecosystems bring order and group intellect. This article presents DEI implementations through HTM5 methodology.
    Matched MeSH terms: Solubility
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