1,721,485 research outputs found
The Estimation of Technical Efficiency of Radiology Wards in Hospitals of Mashhad University of Medical Sciences Using Data Exhaustive Analysis Method: 2006-2010
No full textThe Estimation of Technical Efficiency of Radiology Wards in Hospitals of Mashhad University of Medical Sciences Using Data Exhaustive Analysis Method: 2006-2010
Borji Nahid1, Hadian Mohammad*2
Received: 20.¬04. 2015 Revised: 04. 08.¬2015 Accepted: 29.¬08.¬2015
Abstract
Introduction: The Diagnostic Radiology ward is one of the most important parts of a hospital that has an important role in the detection of various diseases. This sector has a lot ofstartup costs. Since this ward is an income-earning ward of the hospital, in order to improve thequality of diagnostic radiology and direct resources to the most productive uses, the performance of this sector should be considered as a necessity.
The aim of this study is estimation of technical efficiency of radiology wards of hospitals of Mashhad University of medicalsciences using data exhaustive analysis method.
Method: This research was conducted with a descriptive-analytical method in 2007 to 2011. The radiology wards of the hospitals of Mashhad University of medical sciences formed the study population. Theinput variable included number of personnel, physicians, equipment, and the output variables included income and the number of patients. The data were accumulatedby author-devised forms.
Results: Average of technical performance, managerial, and scale efficiency of the studied centers during the period of study was appointed 0.557, 0.942, and 0.567, respectively. The average technical performance efficiency of university hospitals' radiology wards wasless than that of other non-affiliated hospitals. Only one radiology part which runs by private sector has full performance during the study.
Conclusion: Centers which were more customer-oriented and tried more to comfort patients were more successful than other centers. Managers can increase motivation and thus efficiency by sharing income with some personnel.
Key¬words: Efficiency, The radiology ward, Data exhaustive analysis
¬Citation: Borji N, Hadian M. The Estimation of Technical Efficiency of Radiology Wards in Hospitals of Mashhad University of Medical Sciences Using Data Exhaustive Analysis Method: 2006-2010. Journal of Health Based Research 2015; 1(1): 85-93.
1. MSc, Department of Health Economics, School of Medical Information and Management, Iran University of Medical Sciences, Tehran, Iran.
2. Assistant Professor, Department of Health Economics, School of Medical Information and Management¬, Iran University of Medical Sciences, Tehran, Iran.
*Correspondence: Tehran, Vali-Asr, Vanak Square, St. Martyr Rashid Yassami, No. 6, School of Management and Medical Information
Tel: 09122278220 Email¬: [email protected]
Protecting entanglement by adjusting the velocities of moving qubits inside non-Markovian environments
No full textEfficient entanglement preservation in open quantum systems is a crucial scope towards a reliable exploitation of quantum resources. We address this issue by studying how two-qubit entanglement dynamically behaves when two atom qubits move inside two separated identical cavities. The moving qubits independently interact with their respective cavity. As a main general result, we find that under resonant qubit-cavity interaction the initial entanglement between two moving qubits remains closer to its initial value as time passes compared to the case of stationary qubits. In particular, we show that the initial entanglement can be strongly protected from decay by suitably adjusting the velocities of the qubits according to the non-Markovian features of the cavities. Our results supply a further way of preserving quantum correlations against noise with a natural implementation in cavity-QED scenarios and are straightforwardly extendable to many qubits for scalability
Applying the APOS Theory to Study the Student Understanding of Polar Coordinates
No full textAbstract A Genetic Decomposition (GD) is developed in this paper, in terms of the APOS instructional treatment of mathematics, for teaching and learning the polar coordinates. The design of the GD is based on the conclusions obtained by a written test and by oral interviews performed on a group of students of the Physics Department of the University of Neyshabur, Iran. Keywords: Polar and Cartesian Coordinates and Curves, APOS Theory, Genetic Decomposition (GD), Triad Mechanism of Schema Development Cite This Article: Vahid Borji, and Michael. Gr. Voskoglou, "Applying the APOS Theory to Study the Student Understanding of Polar Coordinate
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Non-Markovianity and Coherence of a Moving Qubit inside a Leaky Cavity
No full textNon-Markovian features of a system evolution, stemming from memory effects, may be utilized to transfer, storage, and revive basic quantum properties of the system states. It is well known that an atom qubit undergoes non-Markovian dynamics in high quality cavities. Here we consider the qubit-cavity interaction in the case when the qubit is in motion inside a leaky cavity. We show that, owing to the inhibition of the decay rate, the coherence of the travelling qubit remains closer to its initial value as time goes by compared to that of a qubit at rest. We also demonstrate that quantum coherence is preserved more efficiently for larger qubit velocities. This is true independently of the evolution being Markovian or non-Markovian, albeit the latter condition is more effective at a given value of velocity. We however find that the degree of non-Markovianity is eventually weakened as the qubit velocity increases, despite a better coherence maintenance
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
The Estimation of Technical Efficiency of Radiology Wards in Hospitals of Mashhad University of Medical Sciences Using Data Exhaustive Analysis Method: 2006-2010
No full textIntroduction: The Diagnostic Radiology ward is one of the most important parts of a hospital that has an important role in the detection of various diseases. This sector has a lot ofstartup costs. Since this ward is an income-earning ward of the hospital, in order to improve the quality of diagnostic radiology and direct resources to the most productive uses, the performance of this sector should be considered as a necessity. The aim of this study is estimation of technical efficiency of radiology wards of hospitals of Mashhad University of medical sciences using data exhaustive analysis method.
Method: This research was conducted with a descriptive-analytical method in 2007 to 2011. The radiology wards of the hospitals of Mashhad University of medical sciences formed the study population. The input variable included number of personnel, physicians, equipment, and the output variables included income and the number of patients. The data were accumulated by author-devised forms.
Results: Average of technical performance, managerial, and scale efficiency of the studied centers during the period of study was appointed 0.557, 0.942, and 0.567, respectively. The average technical performance efficiency of university hospitals' radiology wards wasless than that of other non-affiliated hospitals. Only one radiology part which runs by private sector has full performance during the study.
Conclusion: Centers which were more customer-oriented and tried more to comfort patients were more successful than other centers. Managers can increase motivation and thus efficiency by sharing income with some personnel.
Key words: Efficiency, The radiology ward, Data exhaustive analysis
Citation: Borji N, Hadian M. The Estimation of Technical Efficiency of Radiology Wards in Hospitals of Mashhad University of Medical Sciences Using Data Exhaustive Analysis Method: 2006-2010. Journal of Health Based Research 2015 1(1): 85-93. 1
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
- …
