Modelling and optimization of photocatalytic degradation of phenol via TiO2 nanoparticles: An insight into response surface methodology and artificial neural network
Publication date: Available online 16 August 2019Source: Journal of Photochemistry and Photobiology A: ChemistryAuthor(s): Muhammad Zulfiqar, Mohamad Fakhrul Ridhwan Samsudin, Suriati SufianAbstractThe epidemic growth of the pharmaceuticals industries over the years in order to meet the human demands had exerted substantial pressure on the global environment, particularly water pollutions crisis. Herein, the photocatalytic degradation of phenol was investigated via commercial TiO2 nanoparticles. The Artificial Neural Network (ANN) and Response Surface Methodology (RSM) was employed for scrutinizing the suitable modelling and optimized condition of the TiO2 nanoparticles in yielding a profound rate of phenol removal. The parameters of investigation involved pH, phenol concentration, catalyst doses and degradation time. The RSM data shows the profound rate of phenol removal ˜ 99.48% was achieved by TiO2 NPs in a designed photocatalytic system that set at 5.42 pH, 15.21 mg/L phenol concentration, 1.75 g/L TiO2 dosage and 540 min irradiation time. The designed system fits well with the Pseudo-First-Order and the Langmuir isotherm model with R2 more than 0.999. On the other hand, the ANN study revealed that the predicated model was perfectly fitted with the experimental data giving the highest value of R2. This work provides an insight into two different statistical modelling and optimization which could provide exposure for developing an optimize...
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This study examines the prevalences of malaria and lymphatic filaria, which are prevalent in Indonesia, as well as those of soil-transmitted-helminths (STH). As a result, the Plasmodium falciparum and P. vivax case loads are almost equal. The current prevalence of P. vivax is uniformly low (<5%) in all age groups and annual parasite incidence (API) showed decreasing tendency as 0.84 per 1,000 population in 2016. However, more than 65 million people still live in malaria epidemic regions. Lymphatic filariasis remains an important public health problem and 236 cities were classified as endemic areas in 514 cities/district...
Conclusion: Uganda successfully developed a national multi-hazard emergency preparedness and response plan using the preparedness logic model. The plan is now ready for implementation by the Uganda MoH and partners. PMID: 31526179 [PubMed - in process]
CONCLUSIONS: Although ART scale-up was temporally associated with a decline in TB notification rates, the achieved rates of decline are below those required to achieve the End TB Targets. Additional investments in tuberculosis control should include efforts to promote earlier care seeking and ART initiation among HIV-positive persons. PMID: 31529618 [PubMed - in process]
(Natural News) Opioid drugs have laid waste to the United States, there is no doubt about that. Over 47,000 people die an opioid-related death annually, and estimates suggest that half of those people died using a synthetic opioid known as “fentanyl.” While the corrupt pharmaceutical industry may have created the prescription opioid epidemic, experts say...
Honduras is battling an especially deadly outbreak of dengue fever, with at least 135 people dead from dengue there this year, nearly two-thirds of them children
Morbidity and mortality associated with opioid use have been on the rise, exemplifying a major public health epidemic. Despite public health interventions, opioid-related morbidity and mortality have yet to plateau or decrease. One explanation for this phenomenon is the presence of barriers to evidence-based pharmacotherapies. Stigma has only recently been identified as a barrier to treatment. The purpose of this report is to evaluate the language used to describe opioid use disorder and associated pharmacologic treatment.
A bipartisan group of U.S. lawmakers said on Thursday they are forming a caucus to combat the "epidemic" of youth vaping, as cases of lung illness tied to vaping have risen and President Donald Trump has pushed for a ban on flavored e-cigarettes.
CONCLUSION: Overall, these data suggest that chronic HFD consumption in mice can mimic pathophysiological and some microbial events observed in NAFLD patients. PMID: 31528245 [PubMed]
Conclusions: Prescription of opioids after low acuity urology procedures is significantly associated with increased opioid use at 1 yr after surgery; efforts should be made to reduce postoperative opioids, especially for urologic procedures that do not typically require opioids.Patient summary: Filling an opioid prescription after minor urologic surgeries is associated with an increased risk of persistent long-term use of opioid medications and a higher risk of serious long-term complications such as hospital visits for an opioid overdose.’