Biodegradability Enhancement in Municipal Wastewater Using New Environmentally Friendly Biostreme

Microorganisms metabolic rate is the ultimate operational basis of diverse biological treatment processes. A variety of assorted factors can affect the biological wastewater treatments metabolic rate. One of the prominent means, is the use of supplements such as trace metals and vitamins. Both batch and continuous experiments have been used to study the effect of a variety of trace metals solution (named biostreme solution) and vitamins solution on biological organic removal process. The results show that, in average addition of 500 ppm of the biostreme had the highest rate of organic removal. The colloidal removal was enhanced by a rate of between 65 to 75% in specific batch tests. When the wastewater was supplemented with concentrations of biostreme individually and in a mixture with the vitamins solution, chemical oxygen demand fractionation showed a significant decrease in the colloids, however there is a different effect observed when returned activated sludge was used as the seed

Creating Alternative and Demedicalized Spaces: Testimonial Narrative on Disability, Culture, and Racialization

The literature on disability, gender and “race” has benefited from the political economy perspective. With its emphasis on unmasking the workings of power, this perspective has brought into relief the systemic, institutionalized and spatial oppression of disabled persons, compounded in the case of gender and “race.” This narrative of deconstruction, however, remains incomplete in the absence of voice and subjectivity of persons with disabilities. Using narrative moments, recounted by an immigrant woman with two “disabled” children, this paper makes a case for an integrated framework for a study of racialized persons with disabilities. Here, the margins2 are not out there in other spaces; they form part of the centre whose existence is brought into question by alternative and demedicalized spaces. The data are drawn from a larger study of health and well being of South Asian East African women in metropolitan Vancouver, Canada

Expert Finding Using Social Networking

In today’s world, knowledge transfer is considered an important and essential activity for the success of an enterprise. Large corporations have realized the need to reuse existing knowledge rather than spend time and effort on solving the same problems again. For these reasons, most corporations now have knowledge repositories. These repositories are visited for possible solutions whenever there is a problem that cannot be easily resolved by using the expertise of the existing team. Apart from this, the problems faced by the people in the company can also be resolved by asking for help from expert in that problem domain. This approach proves to be more efficient in terms of time and manual efforts, while also saving resources. This report proposes a strategy of finding an expert in a required domain by analyzing a company’s social network i.e. communication amongst its employees. Efficiently finding an expert is one of the most important tasks currently faced by the information industry and this problem has not been sufficiently addressed in the past. Conducting further research in this field can improve the time required to solve critical time-sensitive problems in an enterprise environment, thereby improving the overall efficiency of the enterpris

Exercise in heart failure

IntroductionIn ambulatory patients with chronic stable heart failure, the cardinal symptom of exercise intolerance is not fully resolved despite optimal medical treatment. Identifying other treatments to improve exercise intolerance may improve quality of life.MethodsI investigated 2 treatments that may improve exercise intolerance in patients with heart failure. First, I conducted a review of oxygen supplementation in cardiovascular disease and then investigated the exercise capacity of 46 patients (mean age 75 years, 63% male and median N-terminal pro-B type natriuretic peptide 1432 (interquartile range: 543-2378 ng/l)) with heart failure and normal ejection fraction (HeFNEF), using different oxygen supplementation (21%, 28% and 40%). Second, I conducted a literature review on the acute effects of water immersion (WI) and swimming in patients with heart failure and reduced ejection fraction (HeFREF) and then investigated the haemodynamic and echocardiographic changes during warm WI in 17 patients with HeFREF (NYHA I and II; mean age 67 years, 88% male and mean left ventricular ejection fraction 33%) and 10 normal subjects.ResultsIn patients with HeFREF, high doses of oxygen have negative haemodynamics effects however low doses may improve exercise tolerance. In patients with HeFNEF, increasing oxygen supplementation during exertion leads to a small increase in exercise time. In patients with HeFREF, although exercise in water appears to be safe, the studies conducted have been small, very heterogeneous and inconclusive. In patients with HeFREF, warm WI causes an acute increase in cardiac output and a fall in systemic vascular resistance.ConclusionWarm WI is well tolerated; however, whether swimming can be recommended as alternative to other forms of exercise or rehabilitation in patients with HeFREF needs further studies. In patients with HeFNEF, a disproportionate increase in left atrial pressure on exercise contributes to symptoms. However extra-cardiac mechanisms may also contribute to impaired exercise tolerance. Studies should also focus on treatment of co morbidities