Background: This study was designed to investigate Saudis' attitudes toward mental distress and psychotropic medication, attribution of causes, expected side effects, and to analyze participants' expectations toward alternative or complementary medicine using aromatic and medicinal plants, through a survey.Method: The study included 674 participants (citizens and residents in Saudi Arabia) who were randomly contacted via email and social media and gave their consent to complete a questionnaire dealing with 39 items that can be clustered in six parts. Descriptive statistics and Chi-square for cross-tabulation were generated using SPSS.Results: Among the 664 participants, 73.4% believed that there are some positive and negative outcomes of psychotropic medication. Participants (72.0%) think that the most important reason leading to psychological disorders is mainly due to the loss of a relative or beloved person, and 73.9% considered psychic session as one of the possible treatments of psychological disorders. Surprisingly, only 18.8% of the participants agreed that medicinal and aromatic plants could be a possible treatment of the psychological disorder. Participants (82%) consider that physicians are the most trustful and preferred source of information about alternative and complementary medicine.
Corrosion is one of the serious problems in industry, specially acidic corrosion which is caused by acidic solutions which are widely used in acid cleaning, acid pickling and acid descaling. Mild steel (MS) is widely used in the the industrial field is vulnerable to be corroded by the acidic solution. In the industrial media, corrosion processes are responsible for the loss of metals. There are various methods to mitigation the degradation or destruction of metal surface. Using inhibitors is one of the most potent methods in control of corrosion is due to its low cost and eases of application and practice. As the concern is focused on the safety of any industrial process in health and environment, the use of organic plants as corrosion inhibitors is in the forefront in the current trend of corrosion inhibition studies. In the last decades the need of novel corrosion inhibitor compounds has become more and more stringent. In this study, the efficiency of the bark of Olea europaea subsp. Cuspidata as corrosion inhibitor for mild steel in 1.0 M sulphuric acid was studied by electrochemical measurements [potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS)]. The results showed that Olea europaea subsp. Cuspidate wood tar oil acts as a potent corrosion inhibitor and the performance of the inhibitor varied with concentrations for mild steel in 1.0 M H2SO4 + 10 % EtOH. The maximum inhibition (%) was 94.97 %, the results were supported by different techniques used. Electrochemical analysis indicated that Olea europaea subsp. Cuspidata wood oil tar extract acts as mixed mainly cathodic inhibitor. Also, surface analysis the scanning electron microscope (SEM) was carried out to determine the corrosion inhibition property of Olea europaea subsp. Cuspidata wood tar oil in (1.0 M H2SO4 + 10 % EtOH) solution. The adsorption of the wood tar extract on mild steel surface followed Langmuir isotherm.
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