Developing a Location-Based Recommender System Using Collaborative Filtering Technique in the Tourism Industry

The rapid growth of new information and products in the virtual environment has made it time consuming to acquire relevant information and knowledge amidst a vast amount of information. Therefore, an intelligent system that can offer the most appropriate and desirable among the large amount of information and products by following the conditions and features selected by each user should be essentially efficient. Systems that perform this task are called recommendation systems. Given the volume of social network data, challenges such as short-term processing and increased accuracy of recommendations are discussed in this type of system. Hence, it can perform processes faster with less error and can be effective in improving the performance of social recommending systems in improving the classification and clustering of information with the help of collaboration filtering methods. This study first develops an innovative conceptual model of a social network-based tourism recommendation system using Flicker network data. This model is based on 9 key components. The comparison show that the proposed method has an accuracy of 0.3% and a lower error rate

Producción de un genotipo superior a partir de un cultivo de papa agria mediante la variación somaclonal

Este estudio se realizó para producir un genotipo superior de la variedad de papa Agria usando variación somaclonal. Se utilizaron dos explantes de hojas y meristemas en combinación con cuatro dosis de 2,4-D (0, 2, 3 y 4 mg / l) para la inducción de callos en un modelo factorial basado en un diseño completamente al azar con 3 repeticiones. Los resultados mostraron que el explante de meristemo, junto con 3 mg de 2,4-D produjeron los callos más adecuados. En el medio de regeneración mencionado se regeneraron los mejores callos y se seleccionó uno de los genotipos regenerados, que era muy diferente al cultivar parental. El genotipo regenerado, se comparó con el genotipo materno (Agria) y un cultivar control (Sante), en un experimento de campo basado en un diseño de bloques completos al azar con 3 repeticiones. Los resultados mostraron que en términos de la mayoría de los rasgos estudiados, como peso del tubérculo por planta, longitud del estolón, porcentaje de materia seca y porcentaje de almidón, el nuevo genotipo fue superior, en comparación con la variedad parental y en términos de porcentaje de piel y madurez. fecha, el cultivar parental fue superior. Los resultados de la comparación molecular también mostraron que, según el marcador CBDP, tanto en términos de número de banda como de tamaño de banda, había diferencias entre el nuevo genotipo y el cultivar parental. En general, los resultados mostraron que la variación somaclonal puede ser un método eficaz para generar nuevos genotipos con características superiore

DC Fault Current Analyzing, Limiting, and Clearing in DC Microgrid Clusters

A new DC fault current limiter (FCL)-based circuit breaker (CB) for DC microgrid (MG) clusters is proposed in this paper. The analytical expressions of the DC fault current of a bidirectional interlink DC/DC converter in the interconnection line of two nearby DC MGs are analyzed in detail. Meanwhile, a DC fault clearing solution (based on using a DC FCL in series with a DC circuit breaker) is proposed. This structure offers low complexity, cost, and power losses. To assess the performance of the proposed method, time-domain simulation studies are carried out on a test DC MG cluster in a MATLAB/Simulink environment. The results of the proposed analytical expressions are compared with simulation results. The obtained results verify the analytical expression of the fault current and prove the effectiveness of the proposed DC fault current limiting and clearing strategy

Evaluation of Performance of Pharmacy Information Systems in Hospitals of Shiraz

Background & Objectives: Medication error is a preventable event that can lead to patient harm. The Pharmacy Information Systems (PISs) promise to reduce medication errors. Considering the importance of these systems, the aim of this study was to evaluate the performance of pharmacy information systems in Shiraz hospitals. Methods: This descriptive-analytic cross-sectional study was conducted on 31 pharmacies in Shiraz hospitals in 2018. Data were analyzed using standard checklist for the evaluation of hospital information system (HIS). After analyzing the data normalization by Shapiro-Wilk test, ANOVA test was used. Data were entered into SPSS version 24 software. Results: Public, private, and non-public hospitals had respectively the highest average scores in the pharmacies information systems. In terms of the performance of pharmacies information systems, most public (61.1%) and private (60%) hospitals and all non-public hospitals (100%) were at moderate level. In addition, there was no significant relationship between different dimensions of performance of the pharmacy information systems and hospital ownership type. Conclusion: It is necessary that the designers and analysts of the pharmacies information systems, while cooperating and consulting with users of these systems, pay more attention to design and modify the pharmacy information systems. Key¬words: Pharmacy information system, Hospital information system, Performance evaluation, Public hospital, Non-public hospital, Private hospital Citation: Khademian F, Bastani P, Bordbar N, Mehdi Tazangi Z, Hamzavi F, Bayati B. Evaluation of Performance of Pharmacy Information Systems in Hospitals of Shiraz. Journal of Health Based Research 2019; 4(4): 349-59. [In Persian

Evaluating the Timing of Emergency Department Services in Hospitals of Arak City

مقدمه: بخش اورژانس یکی از مهمترین بخش های بیمارستان است که عملکرد آن می تواند تاثیر فراوانی بر کارکرد سایر بخش ها و میزان رضایت مندی بیماران داشته باشد. لذا سرعت ارائه خدمات در بخش اورژانس جهت کاستن از مرگ و میر و معلولیت ها از اهمیت ویژه ای برخوردار است. بنابراین مطالعه حاضر با هدف بررسی زمان ارائه خدمات در دو بیمارستان آموزشی شهر اراک انجام شد. روش کار: در این پژوهش مقطعی، پژوهشگران با حضور در بیمارستان های مربوطه به مدت سه ماه در شیفت های کاری مختلف، زمان ورود بیماران به بخش تریاژ را ثبت کرده و با استفاده از چک لیست مربوطه زمان های مربوط به ویزیت پزشک، ارسال نمونه های آزمایش و دریافت جواب آنها، انجام رادیوگرافی و تعیین تکلیف بیماران را با استفاده از کرونومتر ثبت کردند. يافته ها: در مطالعه حاضر 200 بیمار با میانگین سنی 5/2±8/45 وارد مطالعه شدند (5/53 درصد مرد). نتایج مطالعه نشان داد متوسط زمان تریاژ تا ویزیت پزشک، 3/4±1/8 دقیقه، فاصله ویزیت تا اولین اقدام درمانی 3/2±7/8دقیقه، زمان درخواست آزمایش تا دریافت نتیجه 5/17±9/60 دقیقه، زمان درخواست تا دریافت نتیجه رادیوگرافی 1/18±4/55 دقیقه، فاصله درخواست تا انجام نوار قلب 3/2±4/5 دقیقه و میانگین مدت زمان حضور بیمار در بخش اورژانس 3/3±9/6 ساعت می باشد. نتيجه گيری: به نظر می رسد که زمان ارایه خدمات مورد بررسی در بخش اورژانس بیمارستان های مورد مطالعه، هرچند در بعضی موارد کمتر از سایر مطالعات مشابه می باشد، اما با استانداردهای جهانی فاصله دارد.Introduction: Emergency department (ED) is one of the most important wards in a hospital and its function can deeply affect the function of other wards and patient satisfaction. Therefore, the speed of providing services in ED is of great importance in order to decrease mortality and disabilities. Thus, the present study was done with the aim of evaluating timing of services in 2 teaching hospitals in Arak. Methods: In this cross-sectional study, researchers were present in the hospitals for 3 months in various working shifts and recorded the time of the patients’ presentation to triage unit. They also recorded the times of physician’s visit, sending samples to laboratory and receiving their results, radiography performance, and decision making in a checklist using a chronometer. Results: In the present study, 200 patients with the mean age of 45.8 ± 2.5 years participated (53.5% male). The findings of the study showed that mean time interval between triage and physician’s visit was 8.1 ± 4.3 minutes, time between visit and the first treatment measure was 8.7 ± 2.3 minutes, time between ordering a test and receiving results was 60.9 ± 17.5 minutes, time between ordering radiography and getting the results was 55.4 ± 18.1 minutes, time between ordering electrocardiography and getting the results was 5.4 ± 2.3 minutes and the patient’s length of stay in ED was 6.9 ± 3.3 hours. Conclusion: It seems that although the timing of providing the studied services is less than similar studies in some cases, it is still far from the international standards.

Mapping 123 million neonatal, infant and child deaths between 2000 and 2017

Since 2000, many countries have achieved considerable success in improving child survival, but localized progress remains unclear. To inform efforts towards United Nations Sustainable Development Goal 3.2—to end preventable child deaths by 2030—we need consistently estimated data at the subnational level regarding child mortality rates and trends. Here we quantified, for the period 2000–2017, the subnational variation in mortality rates and number of deaths of neonates, infants and children under 5 years of age within 99 low- and middle-income countries using a geostatistical survival model. We estimated that 32% of children under 5 in these countries lived in districts that had attained rates of 25 or fewer child deaths per 1,000 live births by 2017, and that 58% of child deaths between 2000 and 2017 in these countries could have been averted in the absence of geographical inequality. This study enables the identification of high-mortality clusters, patterns of progress and geographical inequalities to inform appropriate investments and implementations that will help to improve the health of all populations