scholarly journals The role of groundwater in loading of nutrients to a restricted bay in a Precambrian Shield lake. Part 1. – Conceptual model and field observations

Author(s):  
Dale R. Van Stempvoort ◽  
William D. Robertson ◽  
Ross MacKay ◽  
Pamela Collins ◽  
Susan J. Brown ◽  
...  
1990 ◽  
Vol 21 (2) ◽  
pp. 119-132 ◽  
Author(s):  
Johnny Fredericia

The background for the present knowledge about hydraulic conductivity of clayey till in Denmark is summarized. The data show a difference of 1-2 orders of magnitude in the vertical hydraulic conductivity between values from laboratory measurements and field measurements. This difference is discussed and based on new data, field observations and comparison with North American studies, it is concluded to be primarily due to fractures in the till.


2014 ◽  
Vol 28 (6) ◽  
pp. 484-497 ◽  
Author(s):  
Bang Nguyen ◽  
Philipp “Phil” Klaus ◽  
Lyndon Simkin

Purpose – The purpose of this study is to (a) develop a conceptual framework exploring the relationships between perceived negative firm customization, unfairness perceptions, and customer loyalty intentions, and (b) investigate the moderating effects of trust in these relationships. The study explores how customizing offers to match customers’ individual needs and how treating customers differentially provoke unfairness perceptions among those not being considered most important. While the literature discusses unfairness perceptions of pricing, promotion, and service, less is known about unfairness in customization practices. Design/methodology/approach – Using a survey approach, 443 completed questionnaires we collected. Following validation of our item measures, a hierarchical linear regression analysis was conducted to test the conceptual model and hypothesized linkages between our constructs. Findings – The results demonstrate that customers’ negative perceptions of customization increase their unfairness perceptions. Unfairness perceptions drastically reduce customer loyalty intentions with trust acting as a significant moderator. Trust increases loyalty intentions even when unfairness perceptions are present. Our findings provide a foundation for understanding how firms may improve their perceived fairness. This increase in perceived fairness creates positive attributions, reduces negative customer experience perceptions and increases loyalty intentions. Originality/value – Key contribution is the development and validation of a conceptual model explaining the linkages between firm customization and unfairness perceptions, firm customization and customer loyalty intentions and the moderating role of trust between these relationships. This study extends the understanding of how customization practices impact unfairness perceptions and, subsequently, influence consumers’ perceptions, intentions and behavior.


2018 ◽  
Vol 35 (3) ◽  
pp. 300-316 ◽  
Author(s):  
Debora Bettiga ◽  
Lucio Lamberti

Purpose This study aims to explore the role of positive and negative anticipated emotions on adoption and continued usage of consumer products. The components of value eliciting anticipated emotions are investigated as well. Design/methodology/approach The conceptual model proposed is tested in two empirical studies, one focussing on functional and hedonic products and one on incremental and radical product innovations. Data are collected through online surveys on consumers and are analysed using structural equation modelling. Findings Results confirm the ability of anticipated emotions to influence product decision-making process. Moreover, anticipated emotions mediate the influence of value perceptions on product attitude. Findings show that these relationships vary greatly between initial adoption and further usage of the product. Practical implications Findings from this study may help marketers in the development of the right brand strategies and communication campaigns, aimed at building emotional connections with the consumer which prompt product adoption and usage. Originality/value Anticipated emotions, the predictions about the emotional consequences of a behaviour, have been acknowledged as strong drivers of consumer choices. Despite that, the role of anticipated emotions in product decision-making has not been explored yet. The present research, by means of a novel conceptual model, uncovers the role of anticipated emotions in both product adoption and continued usage decisions and depicts the components of value arousing such anticipated emotions.


2017 ◽  
Vol 13 (3) ◽  
pp. 215-225 ◽  
Author(s):  
Louis Tay ◽  
James O. Pawelski ◽  
Melissa G. Keith

Author(s):  
Nader Gholi Ghorchian ◽  
Shahrooz Farjad ◽  
Ali Taghipour Zahir

As higher education plays a pivotal role in the economic well-being of modern societies, universities today are faced with increasing pressure in order to improve their accountability and performance. They have to redesign the research structure to achieve the set objectives. The present survey aimed at studying the factors and related indicators that affect the effectiveness of the research structure of the universities. The sample included 274 faculty members who were selected through stratified random method at 8 branches of Islamic Azad University in Tehran province (Iran). Research questions were: a) What key Factors influence the Effectiveness of the universities’ research structure? and b) What conceptual model can be designed? Finally, in this study using a questionnaire and factor analysis technique, eight factors were identified and ranked which contribute towards the effectiveness of research structure in universities . Finally, a conceptual model has been proposed for the universities to strengthen their research structure.


2009 ◽  
Vol 66 (7) ◽  
pp. 1515-1519 ◽  
Author(s):  
Suchana Chavanich ◽  
Voranop Viyakarn ◽  
Thepsuda Loyjiw ◽  
Priyapat Pattaratamrong ◽  
Anchalee Chankong

Abstract Chavanich, S., Viyakarn, V., Loyjiw, T., Pattaratamrong, P., and Chankong, A. 2009. Mass bleaching of soft coral, Sarcophyton spp. in Thailand and the role of temperature and salinity stress. – ICES Journal of Marine Science, 66: 1515–1519. From June to October 2006 and 2007, mass bleaching of the soft coral, Sarcophyton spp., occurred for the first time in the upper Gulf of Thailand. Approximately 90% of the populations experienced extensive bleaching, and almost 95% of colonies were affected. Field observations also revealed that fragmentation of Sarcophyton spp. set in 1 month after the onset of bleaching. Some colonies started to recover to some extent by the end of July, with 95% of the population of Sarcophyton spp. recovering by October. Both acute and chronic trials were conducted to determine whether temperature and/or salinity triggered bleaching. In the acute tests, Sarcophyton spp. at 40°C and salinity 20 psu were completely bleached, and death occurred after 57 and 204 h, respectively. However, the colonies at 40 psu could survive through the experimental trial. In the chronic tests, Sarcophyton spp. died when exposed to 34°C, whereas complete bleaching and mortality of Sarcophyton spp. occurred at salinities of 10 and 49 psu. We conclude that elevated temperatures had a greater effect on the bleaching of Sarcophyton spp. than did salinity.


2021 ◽  
Vol 288 (1958) ◽  
pp. 20211604
Author(s):  
Alicja Laska ◽  
Sara Magalhães ◽  
Mariusz Lewandowski ◽  
Ewa Puchalska ◽  
Kamila Karpicka-Ignatowska ◽  
...  

In seasonal environments, sinks that are more persistent than sources may serve as temporal stepping stones for specialists. However, this possibility has to our knowledge, not been demonstrated to date, as such environments are thought to select for generalists, and the role of sinks, both in the field and in the laboratory, is difficult to document. Here, we used laboratory experiments to show that herbivorous arthropods associated with seasonally absent main (source) habitats can endure on a suboptimal (sink) host for several generations, albeit with a negative growth rate. Additionally, they dispersed towards this host less often than towards the main host and accepted it less often than the main host. Finally, repeated experimental evolution attempts revealed no adaptation to the suboptimal host. Nevertheless, field observations showed that arthropods are found in suboptimal habitats when the main habitat is unavailable. Together, these results show that evolutionary rescue in the suboptimal habitat is not possible. Instead, the sink habitat functions as a temporal stepping stone, allowing for the persistence of a specialist when the source habitat is gone.


Author(s):  
Muhammad Abbas ◽  
Asif Ali ◽  
Muhammad Ahsan Khalid

The paper investigates the critical role of organisational commitment between leadership style and employees’ performance. Generally, the relationship between leadership style and the organisational performance has been discussed widely but ignoring the employees’ performance. It has been accepted that the organisational commitment leads to higher employee performance but the existing literature has not focused much on this view. A conceptual model has been developed which links the constructs together.The model reveals the missing link of organisational commitment between leadership style and employees’ performance. The sample of 242 was collected from the managers and employees of manufacturing and service organisations. The finding confirmed that organisational commitment acted as a mediator between the leadership style and employees’ performance.  


2020 ◽  
Vol 6 (1) ◽  
pp. 3-27 ◽  
Author(s):  
Dimitris Eleftheriotis

This article reframes the critical discourse around the ‘Greek Weird Wave’ using an approach informed by theoretical work on cosmopolitanism. Focussing on Yorgos Lanthimos’s Dogtooth (2009) and Athena-Rachel Tsangari’s Attenberg (2010), the critical interpretation of the role of the family is radically rethought. I argue that the privileging of allegorical readings of the family in the Weird Wave films constitutes a form of critical denial of the deeply problematic and specifically Greek ways in which the family (dys)functions. I challenge the absolute and exclusive power that the Greek ‘crisis’ holds over interpretations and evaluations of Weird Wave films, which discursively displaces the problems of the family to broader sociopolitical frameworks. In reclaiming the importance of literal readings of the films, I reposition them as manifestations of a specific cosmopolitan disposition, that of introspection, a process of self-examination that overcomes denial. In turn, the critical reframing of the films outlines the contours of a complex agonistics of introspective cosmopolitanism, an inward investigative disposition that is dialectically linked to cosmopolitan positioning. Jean François Lyotard’s 1989 theorization of the oikos (home/house) provides a conceptual model for understanding the family (oikogeneia), which, in its Greek specificities, is central to the films under discussion.


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