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RISS 인기검색어
- 검색키워드
- 저자 : Somaye Hosseini (검색결과 3 건)
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Design and engineering of sculptured nano-structures for application in hydrophobicity
Somaye Hosseini,Hadi Savaloni,Mehran Gholipour Shahraki 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.45 No.-
The design and engineering of suitable structures for enhancement of the hydrophobic property of asurface is one of the most challenging problems. In order to achieve a superhydrophobic structure wehave designed and fabricated Mn nano-sculptured thinfilms with different shapes and dimensions,namely helical squares and helical pentagons on glass substrates. The contact angle (CA) of three liquids;a–bromonaphtalene (apolar), water and formamide (polar) to these surfaces was measured and thesurface free energy was calculated. Changes to the geometry of the structure produced results rangingfrom hydrophilic (CA = 51 ) to superhydrophobic (CA = 152 ). The superhydrophobic structure is a helicalsquare shaped structure with high porosity (deposited at 83 ) which also shows the rose petal effect withthe additional property of high adhesion. The resemblance of this structure to that of gecko feet, whichshows both high adhesion forces and superhydrophobic property is discussed. All structures investigatedin this work showed negative spreading coefficients with highest values for the largest contact angle foreach type/shape of structure. The superhydrophobic sample also acts as a sticky surface which isconfirmed by hysteresis of the contact angle obtained from advancing and receding contact anglesmeasurements. The influence of the volume of liquid drop and different surface morphologies on thewetting transition from Cassie–Baxter to Wenzel states is also reported.
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Evaluation of Drug Abuse Relapse Event Rate Over Time in Frailty Model
Somaye Hosseini,Abbas Moghimbeigi,Ghodratollah Roshanaei,Farzaneh Momeniarbat 질병관리본부 2014 Osong Public Health and Research Persptectives Vol.5 No.2
Objectives: Drug dependence as a chronic disorder is reversible over time and has a cost burden for individuals, families, and society. An individual who has stopped taking drugs for a long time may start taking drugs again. The variables affecting the reuse of drugs are not well known. Therefore a study of the factors that increase the length of time away from drugs is essential. Methods: This study used data collected by the Bushehr addiction treatment centers (Tolloe and Pasargadae) from 100 men with drug addiction from March 2006 to September 2010. The shared frailty model was used to study the influence of variables on the duration of time away from drug use. The most common method for entering intra-class (personal) correlation is the survival frailty model, which uses parametric survival data for the evaluation of recurrent events. A Weibull distribution for time to event with gamma shared frailty was used. Results: The mean (standard deviation) age and age at onset of opium use of the sample were 33.85 (8.11) and 20.65 (6.87), respectively. About 30% of the men studied had chronic disease and 36% had a mental illness. The mean (frequency mean) of the amount of opium used were 4.73 (3.8) g and 2.54 (1.14) times per day. The desire to end drug use was 97% and 3% for the men with drug addiction and their families, respectively, at the time when the men stopped using opium. The age at onset of opium use [p = 0.046, hazards ratio (HR) = 1.30], history of chronic disease (p = 0.005, HR = 249.635), and marital status (p = 0.06, HR = 0.027) are important in the reuse of opium. Conclusion: We found that opium addiction is related to other chronic diseases and to the age at onset of opium use. A prospective study following up individuals with drug addiction who try to stop drug use in addiction treatment centers could help to determine the risk factors of resuming drug use.
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Medication errors among Iranian emergency nurses: a systematic review
Zohreh Hosseini Marznaki,Somaye Pouy,Waliu Jawula Salisu,Amir Emami Zeydi 한국역학회 2020 Epidemiology and Health Vol.42 No.-
OBJECTIVES: Medication errors (MEs) made by nurses are the most common errors in emergency departments (EDs). Identifying the factors responsible for MEs is crucial in designing optimal strategies for reducing such occurrences. The present study aimed to review the literature describing the prevalence and factors affecting MEs among emergency ward nurses in Iran. METHODS: We searched electronic databases, including the Scientific Information Database, PubMed, Cochrane Library, Web of Science, Scopus, and Google Scholar, for scientific studies conducted among emergency ward nurses in Iran. The studies were restricted to full-text, peer-reviewed studies published from inception to December 2019, in the Persian and English languages, that evaluated MEs among emergency ward nurses in Iran. RESULTS: Eight studies met the inclusion criteria. Most of the nurses (58.9%) had committed MEs only once. The overall mean rate of MEs was 46.2%, and errors made during drug administration accounted for 41.7% of MEs. The most common type of administration error was drug omission (17.8%), followed by administering drugs at the wrong time (17.5%) and at an incorrect dosage (10.6%). The lack of an adequate nursing workforce during shifts and improper nurse-patient ratios were the most critical factors affecting the occurrence of MEs by nurses. CONCLUSIONS: Despite the increased attention on patient safety in Iran, MEs by nurses remain a significant concern in EDs. Therefore, nurse managers and policy-makers must take adequate measures to reduce the incidence of MEs and their potential negative consequences.
KCI
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