Diurnal cycle of Isospora spp. oocyst shedding in Eurasian blackbirds (Turdus merula)

2004 ◽  
Vol 82 (5) ◽  
pp. 764-768 ◽  
Author(s):  
Katharina Misof
Keyword(s):  
Population Dynamics ◽  
Diurnal Cycle ◽  
Bird Species ◽  
Free Living ◽  
Turdus Merula ◽  
Coccidian Oocyst ◽  
Diurnal Fluctuations ◽  
Evolutionary Aspects ◽  
Practical Implications

Diurnal fluctuations in the appearance of parasites have been recognized for more than 60 years but have been largely ignored in studies examining the role of parasites in connection with evolutionary aspects of behaviour, ecology, and population dynamics. The disregard of diurnal fluctuations, however, can influence the reliability and interpretation of data. I examined shedding of Isospora spp. oocysts in faeces of naturally infected, free-living Eurasian blackbirds (Turdus merula L., 1758). Adult birds and nestlings shed coccidian oocysts (Isospora spp.) predominantly in the afternoon. The results are in agreement with earlier studies on coccidian oocyst shedding in other bird species. They are discussed with regard to these studies and to practical implications for future investigators in this field.

scholarly journals Structural and proteomic analyses of vitelline membrane proteins of blackbird (Turdus merula) and song thrush (Turdus philomelos)

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Krzysztof Damaziak ◽  
Marek Kieliszek ◽  
Dariusz Gozdowski
Keyword(s):  
Current Knowledge ◽  
Bird Species ◽  
Vitelline Membrane ◽  
Identification Methods ◽  
Song Thrush ◽  
Turdus Merula ◽  
The Family ◽  
Specific Proteins ◽  
Scanning Electron

Abstract In this study, we aimed to perform structural and proteomic analysis of the vitelline membrane (VM) of two species birds belonging to the family Turdidae: blackbird (Turdus merula) and song thrush (Turdus philomelos). We performed structural analyses using scanning electron microscopy. The VM proteins were identified and compared to the best-known chicken VM proteins. According to our results, VM of both species has a typical three-layered structure: the outer layer, inner layer, and the continuous membrane between them. An unusual observation was the finding of “convexity” formed by the inner layer in blackbird. The role of these convex structures is not known, but they can be typical for the species and can be used in their identification. In addition, we identified two proteins in the VM of both species of birds, of which U3KEZ1 FICAL was not previously identified in any other bird species, and the U3JXV8 FICAL protein was confirmed only once in cockatiel parrot VM. The function of these proteins is not exactly known, but their structure shows similarities to the SERPIN proteins that are involved in microbiological defense, i.e., they are immune proteins. This study contributes to the current knowledge about the structure and composition of proteins of VM, especially because similar analyses have never been performed for Turdidae family. Knowledge of the structure and specific proteins of blackbird and song thrush VM can be beneficial in research on ecology and bird biology and also helpful in developing noninvasive and nongenetic identification methods.

The Role of Behavioral Models in the Ontological Structure of Modern Macroeconomics

2013 ◽  
pp. 98-110
Author(s):  
M. Likhachev
Keyword(s):  
Economic System ◽  
Government Regulation ◽  
Institutional Structure ◽  
Economic Environment ◽  
Behavioral Models ◽  
Macroeconomic Models ◽  
Basic Characteristics ◽  
Practical Implications

Behavioral models are considered in the paper as the link between the description of the institutional structure of the economic system and the formation of macro-aggregates, reflecting the results of its operations. The degree of homogeneity of the private sector’s economic environment and complementary goals of private entities and government regulation are noted as basic characteristics of behavioral models. The author examines the differences in the estimates of these characteristics as one of the most important factors underpinning the architecture of modern macroeconomic models and their practical implications.

Formation of university scholars’ entrepreneurial intentions: Interaction between perceived desirability and perceived feasibility

2020 ◽  
Vol 48 (1) ◽  
pp. 1-13
Author(s):  
Wen Li ◽  
Yurong Zhang
Keyword(s):  
Significant Role ◽  
Moderating Effect ◽  
Entrepreneurial Intentions ◽  
Environmental Support ◽  
Academic Entrepreneurs ◽  
Event Model ◽  
Perceived Desirability ◽  
Practical Implications

Drawing on the entrepreneurial event model, we examined the role of perceived desirability and perceived feasibility and their interaction in university scholars' entrepreneurial intentions, with data from 252 Chinese academic entrepreneurs. Results showed that perceived feasibility only had a significant effect on scholars' entrepreneurial intentions formation. Further, the moderating effect of external environmental support brought about an interactive mechanism between perceived desirability and perceived feasibility: When perceived desirability was low, perceived feasibility played a more significant role in entrepreneurial intentions formation, and vice versa. Theoretical contributions and practical implications are discussed.

scholarly journals Do males matter? The role of males in population dynamics

Oikos ◽  
2007 ◽  
Vol 116 (2) ◽  
pp. 335-348 ◽  
Author(s):  
Daniel J. Rankin ◽  
Hanna Kokko
Keyword(s):  
Population Dynamics

Applying Expanded Servicescape to the Hotel Industry

2021 ◽  
pp. 109634802110115
Author(s):  
Seonjeong (Ally) Lee ◽  
Ning-Kuang Chuang
Keyword(s):  
Quality Of Life ◽  
Customer Loyalty ◽  
Physical Environment ◽  
Online Survey ◽  
Hotel Industry ◽  
Holistic Approach ◽  
Environmental Cues ◽  
Practical Implications

The physical environment plays an essential role in customers’ hotel stay experiences. Hotels offer a differentiated atmosphere that creates favorable customers’ evaluations. Based on the significant role of environmental cues, this study investigates the effects of an expanded servicescape on customers’ evaluations, including customer satisfaction, quality of life, and customer loyalty, in the context of the hotel industry. To test the proposed research framework, this study collects data from previous hotel customers and conducts a self-administered, online survey. Findings identified ambience, interactions with employees, authenticity, and fascination positively influenced customers’ satisfaction, which further influenced customer loyalty. Only ambience and fascination positively influenced quality of life, which in turn influenced customer loyalty. Results contributed to the application of expanded servicescape in the hotel context. Results also suggested practical implications of the holistic approach of servicescape in the hotel industry.

A “Learning from Action” workshop in Japan

2019 ◽  
Vol 40 (2) ◽  
pp. 77-83
Author(s):  
Robert Douglas Hinshelwood ◽  
Luca Mingarelli ◽  
Simona Masnata
Keyword(s):  
Far East ◽  
Opportunity To Learn ◽  
Content Type ◽  
Work Activities ◽  
Defensive Role ◽  
Feedback Data ◽  
Experiential Workshop ◽  
First Time ◽  
Practical Implications

Purpose Many people in severe mentally disturbed states do not use language or other symbolic media well or coherently. Therefore, the non-verbal medium needs to be understood by workers with such people. The “Learning from Action” experiential workshop was developed in order to provide an opportunity to learn about hidden messages in the relationships and roles occurring in activities. In August 2017, a workshop was run for the first time in Japan. The purpose of this paper is to report the experience and dynamics observed by the three consultants, who are here the authors of this paper. Design/methodology/approach After the workshop all the staff and members, including interpreters, were invited to give feedback. Findings Analysis of the feedback data showed certain important dynamics, concerning especially dependence, cultural defences and the defensive role of activity in a multicultural context. Research limitations/implications This is an initial experience to be followed up by later feedback and further workshops. Practical implications Workers awareness of non-verbal communication within the roles of work activities is a training possibility. It faces various resistances including the mental health assumptions of meaninglessness of any communication outside the verbal. Originality/value This is a method of training not widely used even in European countries, and is the first in a country in the far east.

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