scholarly journals Comment-Moritz, R. F. A. and M. S. Meusel. 1992. Mitochondrial gene frequencies in Africanized honeybees (Apis mellifera L.): Theoretical model and empirical evidence. J. Evol. Biol. 5: 71-81.

1993 ◽  
Vol 6 (5) ◽  
pp. 759-760 ◽  
Author(s):  
H. Glenn Hall ◽  
Deborah R. Smith
2018 ◽  
Vol 5 (9) ◽  
pp. 181163 ◽  
Author(s):  
Jeremy A. Shaw ◽  
Alastair Boyd ◽  
Michael House ◽  
Gary Cowin ◽  
Boris Baer

The honeybee Apis mellifera is one of many animal species for which empirical evidence of a magnetic sense has been provided. The underlying mechanisms postulated for magnetoreception in bees are varied, but most point towards the abdomen as the most likely anatomical region for its location, partly owing to the large accumulation of iron in trophocyte cells that comprise the honeybee fat body. Using a multi-modal imaging and analysis approach, we have investigated iron in the honeybee, with a particular focus on the abdomen and the utility of such techniques as applied to magnetoreception. Abdominal iron is shown to accumulate rapidly, reaching near maximum levels only 5 days after emerging from the comb and is associated with the accumulation of iron within the fat body. While fat body iron could be visualized, no regions of interest, other than perhaps the fat body itself, were identified as potential sites for magnetoreceptive cells. If an iron-based magnetoreceptor exists within the honeybee abdomen the large accumulation of iron in the fat body is likely to impede its discovery.


2019 ◽  
Vol 29 (4) ◽  
pp. 970-992 ◽  
Author(s):  
Lu Yingjie ◽  
Shasha Deng ◽  
Taotao Pan

Purpose The purpose of this paper is to examine how the usage of enterprise social media (ESM) affects eventual employee turnover. Design/methodology/approach This study developed a theoretical model based on the proposition that different ESM usage behaviors (utilitarian use, hedonic use and social use) have different effects on employee turnover, and job type and job level can moderate the effect of ESM usage on turnover. The model was examined empirically using 1,791 employee samples from a large high-tech manufacturing enterprise deploying ESM. Findings The results indicate that the utilitarian and social use of ESM has negative effects on turnover, but the hedonic use of ESM has positive effects on turnover. Furthermore, for employees working in different job types and job levels, there are significant differences concerning the effect of ESM usage on their turnover. Practical implications ESM managers should encourage employees to use ESM for utilitarian needs and social support but restrict excessive use of ESM for leisure. In addition, different ESM use policies depending upon job types and job levels could be adopted to retain valuable employees. Originality/value Few studies have focused on how usage of ESM affects eventual employee turnover. Given the lack of theoretical research and empirical evidence, the authors developed a theoretical model and conducted an empirical study to fill the research gap.


2019 ◽  
pp. 1-18
Author(s):  
Emilio Domínguez-Escrig ◽  
Francisco Fermín Mallén Broch ◽  
Rafael Lapiedra Alcamí ◽  
Ricardo Chiva Gómez

Abstract The main goal of the current study is to analyze the relationship between leaders' empowerment, radical innovation and organizational performance. A total of 300 Spanish companies participated in the study. In total, 600 valid questionnaires were obtained. Structural equations were used to validate the proposed hypotheses. Two different respondents in each company were selected to provide information. All the hypotheses proposed in the theoretical model were confirmed. This research provides empirical evidence of the relationship between leaders' empowerment and organizational performance, highlighting the mediation role played by radical innovation. Leaders who empower, promote radical innovation and, in turn, performance. To our knowledge, this is the first empirical study that analyzes the effect of leader's empowerment on radical innovation. Although in the former literature there are evidences of a positive relationship between empowerment and innovation, there are no studies that differentiate between innovation typologies.


2014 ◽  
Vol 33 (8/9) ◽  
pp. 871-890 ◽  
Author(s):  
Snehal Shah ◽  
Anil Sachdev

Purpose – The purpose of this paper is to propose a theoretical model that leverages the practical wisdom of the Panch-Kosa framework of yogic philosophy to develop an awareness of spirituality in the organization. It also provides quasi-quantitative empirical evidence to demonstrate its potential application. Design/methodology/approach – A survey was designed and administered in four different organizations. Correlation, ANOVA and χ2 analysis were conducted to explore the applicability of the proposed framework. Findings – The results indicate that values, as reflected in the physical aspects of an organization such as its logo, symbols and organizational elements characterized as “practice of Fair Governance” and “HR Effectiveness”, influence employee-related outcomes. Further, the study found that when there is a perfect “alignment” between an organization's intent to honor values and its corresponding actions, employees perceive the highest levels of holistic engagement. Research limitations/implications – This study has an implication on how to leverage practical wisdom from Hindu philosophy to enable individuals and organizations to transform to a higher level of consciousness. Originality/value – The paper has ventured into an uncharted territory of integrating the yogic framework of Panch-Kosa to the organizational elements and has provided preliminary support for its applicability in organizations. Moreover, it operationalizes the notion of alignment between organization's value-centric strategy and actions and its impact on employee-related outcomes.


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