نتایج جستجو برای: organic substance 22

تعداد نتایج: 598704  

2003
Ayla Arslan Savas Ayberk

We investigated the conventional characterisation and biological treatability of wastewaters of the “Izmit Industrial and Domestic Wastewater Treatment Plant”. Respirometric procedures were carried out for the experimental assessment of organic contents of wastewater. The mean value of total COD was 1201 mg·l-1 and varied within a wide range of 580 to 1822 mg·l-1 for the 14 different influents....

2006

Individuals with substance abuse disorders, whether or not they are HIV infected, are subject to higher rates of mental disorders than the rest of the population. In some studies of substance abusers, the lifetime prevalence of such disorders is as high as 51 percent (Kessler et al., 1996). However, the percentage of HIV-infected substance abusers with psychiatric disorders has not been ascerta...

2017
Bimala Panthee Suresh Panthee Saroj Gyawali Norito Kawakami

BACKGROUND Substance use among health care students threatens professional standards and the delivery of quality services, potentially placing the public at risk. Therefore, our study aims to determine the prevalence and correlates associated with substance use among Nepalese health care students. METHOD A cross-sectional survey using a self-administered health professional questionnaire was ...

2018
Therese Reitan

Introduction: The study investigates health and social conditions among pregnant substance abusers and the children that were born from these pregnancies, and analyses outcomes in relation to type of substance abuse. Methods: Register data concerning 97 pregnant substance abusers and 104 children, at birth and 5 years on, were analysed with descriptive statistics and chi square tests. Results: ...

Journal: :Renewable Energy 2021

Digestate is a nutrient-rich substance produced by anaerobic digestion that contains organic, inorganic, and biological matter. The European Nitrates Directive (91/676/EEC) provides regulations regarding the wider implementation of digestate. Owing to significant amount organic matter in digestate, it can be utilised as solid biofuel, soil amendment substance, or substrate for activated carbon ...

2009
D. Rocha J. A. Takahashi M. A. D. Boaventura

The use of microorganisms to induce chemical modifications in organic molecules is a very useful tool in organic synthesis, to obtain biologically active substances. The fungus Cephalosporium aphidicola is known by its ability to hydroxylate several skeleton positions of many classes of organic compounds. In this work, the microbial transformation of ent-kaur-16-en-19-ol (1) by C. aphidicola, a...

2006
Kelly B. Maguire Nicole Owens Nathalie Simon

The motivation behind purchases of organic foods is not necessarily straightforward. Some individuals may purchase organic foods for health reasons, while others may do so because of concern for the environment. The issue is even more complicated when thinking about babyfood. Because of children’s developing systems, parents and other care givers could be more concerned about the effects of pes...

Journal: :Clinical chemistry 1987
B A Chamberlin C C Sweeley

We evaluated for reliability and reproducibility a semiquantitative gas-chromatographic assay of organic acids in samples of normal urine recovered from absorbent filter paper. We also evaluated this method for use in diagnosis of some of the more common organic acidurias. Transfer of urine from diapers to absorbent filter paper eases the usual trauma of specimen collection from young children;...

2006

I n this chapter we first briefly review the most important types of covalent bonds encountered in organic substances and the ways in which these bonds are represented in structural formulas. Next we consider the sizes and shapes of organic molecules and how structural formulas written in two dimensions can be translated into three-dimensional models that show the relative positions of the atom...

2013
Saurabh Bhattarai Tae-Jin Oh Jong Hwa Jang

Many of the alkaloids used as drugs today are from natural sources. These drugs have been modified to produce analogs for clinical use. One of these alkaloids, pilocarpine, is an imidazole alkaloid found in plants of the genus Pilocarpus (Fig. 1). Plants of this genus are designated by the name jaborandi but only Pilocarpus microphyllus, which accumulates the highest pilocarpine content, is con...

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