Zeliha Betül Kol and Dilek Duranoğlu
This study aims to model and investigate Basic Yellow 28 (BY28) adsorption onto activated carbon in batch and continuous process.
Abstract
Purpose
This study aims to model and investigate Basic Yellow 28 (BY28) adsorption onto activated carbon in batch and continuous process.
Design/methodology/approach
Batch adsorption experiments were carried out at 25 °C with 50 mg/L BY28 solution at pH 6 with different amounts of activated carbon. Freundlich and Langmuir adsorption isotherm models were used to model batch data. Pseudo-first-order and pseudo-second-order kinetic models were applied with linear regression. The changes of the breakthrough curve with the column height, flow rate, column diameter and adsorbent amount were examined in fixed bed column at room temperature. BY28 adsorption data were modelled by using different adsorption column models (Adams & Bohart, Thomas, Yoon & Nelson, Clark and modified dose–response) with non-linear regression.
Findings
Freundlich model and pseudo-second-order kinetic model expressed the experimental data with high compatibility. Modified dose-response model corresponded to the fixed bed column data very well.
Originality/value
Adsorption of Basic Yellow 28 on activated carbon in a fixed bed column was studied for the first time. Continuous adsorption process was modelled with theoretical adsorption models using non-linear regression.
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Eliana Barrenho and Marisa Miraldo
This chapter aims at providing an understanding of the research and devlopment (R&D) process in the pharmaceutical industry, by exploring the methodological challenges and…
Abstract
This chapter aims at providing an understanding of the research and devlopment (R&D) process in the pharmaceutical industry, by exploring the methodological challenges and approaches in the assessment of the determinants of innovation in the pharmaceutical industry. It (i) discusses possible methodological approaches to model occurrence of events; (ii) describes in detail competing risks duration models as the best methodological option in light of the nature of pharmaceutical R&D processes and data; (iii) concludes with an estimation strategy and overview of potential covariates that have been found to correlate with the likelihood of failure of R&D pharmaceutical projects.
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Mercy Toni, K.K. Jithina and K.V. Thomas
The main purpose of this paper is to outline the antecedents of patient satisfaction in the field of medical tourism (MT) applying extant literature and to develop a conceptual…
Abstract
Purpose
The main purpose of this paper is to outline the antecedents of patient satisfaction in the field of medical tourism (MT) applying extant literature and to develop a conceptual model based on the review.
Design/methodology/approach
This paper presents a thorough review of prior studies related to the antecedents of patient satisfaction in the MT sector. Moreover, it provides the theoretical base that helped the researcher to identify significant relationship between the patient satisfaction and its antecedents.
Findings
The researchers identified the prominent antecedents of patient satisfaction and present the potential interrelationships between different antecedents of patient satisfaction such as treatment quality, cost attractiveness, destination image and service quality with patient satisfaction based on the review.
Practical implications
The results have momentous practical implications as they will help researchers to better understand the antecedents of patient satisfaction and their potential inter linkages with patient satisfaction in MT sector. The conceptual model derived from the review may guide the actions of researchers as well as practitioners in the MT industry as a whole. The present study provides insights for further research in the MT sector and thereby helps to further enrich the existing theoretical base of the MT.
Originality/value
The study brings together the scattered knowledge from the broad and extensive range of medical or health tourism and cognate literature which indicate ideological differences among various aspects of MT as well as potential factors determining patient satisfaction in MT sector (antecedents of satisfaction). The newly developed model incorporates a new construct called “treatment quality” as different from “service quality,” which is a widely used construct to explain customer satisfaction. The antecedents of patient satisfaction and their inter-linkages with patient satisfaction provide a sound theoretical foundation for the future studies.
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Sigrit Altmäe, Kulno Türk and Ott‐Siim Toomet
The purpose of this paper is to analyze the relationship between Thomas‐Kilmann's Conflict Management Modes (CMM) and Fiedler's Leadership Style (LS) measures, both in the data…
Abstract
Purpose
The purpose of this paper is to analyze the relationship between Thomas‐Kilmann's Conflict Management Modes (CMM) and Fiedler's Leadership Style (LS) measures, both in the data, and from the theoretical perspective. Based on the conceptual similarities, the authors first propose the existence of a relationship between Thomas‐Kilmann's CMM and Fiedler's LS measures, then establish the presence of the relationship, based on a dataset of Estonian managers.
Design/methodology/approach
The authors use a unique dataset of 343 leaders and specialists from different Estonian organizations, on both Thomas‐Kilmann's CMM and Fiedler's Least Preferred Co‐worker test. The data were analyzed by multivariate methods.
Findings
The results indicate that leaders who are task‐oriented, according to Fiedler's model, tend to use more competing as the dominant CMM, while relationship‐oriented leaders are more accommodating. The authors also analyze the effect of individual characteristics, finding that younger managers are more task‐oriented while older ones are typically relationship‐oriented and conflict avoiding; women are more collaborative and less conflict avoiding, and men tend to use the accommodating mode more than women. Surprisingly, women tend to be more competitive.
Originality/value
This is the first study to establish a relationship between Fiedler's Leadership Style and Thomas‐Kilmann's Conflict Mode Instrument. This relationship can potentially be used for assessing the reliability and validity of measurements. The particular shape of it may be used to analyze the links between conflicts, relationships and assertiveness. Additionally, the paper provides an empirical analysis of conflict management habits and leadership styles of Estonian managers.
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Paul R. Carlile, Steven H. Davidson, Kenneth W. Freeman, Howard Thomas and N. Venkatraman
Ebony M. Duncan-Shippy, Sarah Caroline Murphy and Michelle A. Purdy
This chapter examines the framing of the Black Lives Matter (BLM) Movement in mainstream media. An analytic sample of 4,303 articles collected from the Dow Jones Factiva database…
Abstract
This chapter examines the framing of the Black Lives Matter (BLM) Movement in mainstream media. An analytic sample of 4,303 articles collected from the Dow Jones Factiva database reveals variation in depth, breadth, and intensity of BLM coverage in the following newspapers between 2012 and 2016: The St. Louis Post-Dispatch, The New York Times, The Washington Post, The Wall Street Journal, and Al Jazeera English. We review contemporary literature on racial inequality and employ Media Framing and Critical Race Theory to discuss the implications of our findings on public perceptions, future policy formation, and contemporary social protest worldwide.