Journal of Arak University of Medical Sciences

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Showing 2 results for Complexity

The Relationship Between Organizational Structure and Organizational Intelligence in Teaching Hospitals of Arak University of Medical Sciences

Rahmatallah Jadidi, Fereshteh Memari, Zohreh Anbari ,
Volume 16, Issue 8 (11-2013)

Abstract

Background: According to the organizational intelligence to increase access of the knowledge in organizations and can to create competitive advantage in order to improve efficiency & effectiveness in organization, but that are affected by the structural dimensions of centralization, formalization, complexity (which reflects the characteristics of the internal organizations). This study aimed to investigate the relationship between organizational structure & organizational intelligence in Arak Medical University affiliated teaching hospital was performed.

Materials and Methods: In this study, the research community was comprised official staff that have high school diploma, working in hospitals that were selected for this study by sample stratified random studied. Tool for data collection, was questionnaire Robbins organizational structure and standardized questionnaire Alberkht about organizational intelligence. After confirming the validity and reliability of questionnaires, these were distributed between colleagues in teaching hospitals and then were collected. Using data collected from 16 SPSS software testing was analyzed by Spearman correlation coefficient.

Results: From 87 respondents, most of them have had a bachelor's degree and about 52 people who (74%) had experience about five years. The results were shown of the significant correlation between the organizational structure &intelligence in teaching hospital (r=-0.612 and p=0.001). The relationship between the complexity of organizational with organizational intelligence was not significant (r=0.157 and p=0.53), but by two other organizational dimension of structures (i.e., degree of formalization, centralization) with organizational intelligence was obtained significant respectively (r=-0.693 and p=0.001) and (r=-0.711 and p=0.001).

Conclusion: Based on findings from this research, teaching hospitals must be review current situation about organizational structural dimensions particular through decreasing centralization, formalization, to provide necessary field for developing and implementation of organizational intelligence

Respiratory pattern variability impairment in patients with exacerbated chronic obstructive pulmonary disease

Saeed Pazhoohan, Fatemeh Abbasi Feijani, Abdollatif Moini , ,
Volume 26, Issue 6 (2-2024)

Abstract

Chronic obstructive pulmonary disease (COPD) is a progressive and debilitating condition. People with COPD often experience exacerbations that may require hospitalization. Pattern analysis of respiratory variability can provide valuable insights into the complexity of the respiratory control system. Therefore, this study investigated respiratory pattern variability during stable and exacerbation phases in patients with COPD.
We analyzed respiratory signal data from 14 patients with COPD during exacerbations and stable phases and compared them with 12 age- and sex-matched control subjects. Respiratory pattern variability analysis of 30-minute inter-breath intervals (IBI) time series was performed using sample entropy and Detrended Fluctuation Analysis.
Sample entropy analysis of the IBI revealed that respiratory variability was more regular during both stable and exacerbation phases in patients with COPD. Also, the short-term (α1) and long-term fractal-like correlation (α2) significantly decreased during both exacerbation and stable phases compared to healthy controls.
The respiratory control system in patients with COPD shows less variability (lower entropy and fractal correlation). This reduction in respiratory signal variability indices in COPD patients is still lower than in healthy people, even when their disease status is stabilized.

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