Role of copepod-dominated meiofauna in the nitrification process of a cold marine mesocosm

1999 ◽  
Vol 56 (9) ◽  
pp. 1639-1648 ◽  
Author(s):  
Serge Parent ◽  
Antoine Morin
Keyword(s):  
Ammonia Oxidation ◽  
Nitrifying Bacteria ◽  
Nitrification Rate ◽  
Nitrite Oxidation ◽  
Sand Filters ◽  
Large Populations ◽  
Negative Effect ◽  
The Relationship ◽  
Positive Effect

Large populations of copepod-dominated meiofauna are found in the sand filters of the St. Lawrence marine mesocosm at the Montreal Biodome. Experiments were conducted in heterotrophic microcosms to quantify how populations of micro- and meiofaunal organisms affect ammonia oxidation (nitrition) and nitrite oxidation (nitration) using apparent nitrition rate (ANiR) and apparent nitration rate (ANaR) as proxies. ANiR and ANaR were not related to ciliate density. Meiofauna had no effect on ANiR, but a significant relationship between ANaR and meiofaunal biomass was observed, which varied with the particulate organic nitrogen (PON) content of the sediment. The relationship was negative at low PON and positive at high PON. These results suggest a direct negative action by predation on nitrifying bacteria and an indirect positive action by reducing competitors through grazing of heterotroph bacteria. The negative effect of 1 g meiofauna·m-2 at low PON (-20% of ANaR0, i.e., ANaR without meiofauna) is much smaller than its positive effect at high PON (+172 to +571% of ANaR0). Copepod-dominated meiofaunal biomasses less than 0.16 g·m-2 increase two to five times the nitrification rate in heterotrophic habitats rich in PON.

scholarly journals Peran Kepuasan Pelanggan Pada Hubungan Kausalitas Antara Kualitas Layanan Terhadap Niat Beralih

2021 ◽  
Vol 2 (2) ◽  
pp. 316-335
Author(s):  
Alan Rusdiana ◽  
L Suparto LM
Keyword(s):  
Customer Satisfaction ◽  
Service Quality ◽  
Structural Equation ◽  
Sampling Technique ◽  
Equation Modeling ◽  
Negative Effect ◽  
Core Service ◽  
The Relationship ◽  
Positive Effect

This type of research is associative research. This research takes the title: “This type of research is associative research. This research takes the title: "The Role of Customer Satisfaction on the Causality Relationship Between Service Quality and Switch Intention (Study on Fitra Majalengka hotel visitors)”. The purpose of this study was to determine the partial effect of core service quality and encounter on switching intentions with the mediating factor of customer satisfaction. The population in this study were all visitors to the Fitra Majalengka hotel. The sampling technique used is purposive sampling. The number of respondents in this study was 120. The data were analyzed using structural equation modeling (SEM) with AMOS 21 software. The results of this study indicate that 1) core service quality has no effect on switching intentions, 2) encounter service quality has no effect on switching intentions, 3) core service quality has a positive effect on customer satisfaction, 4) encounter service quality has a positive effect on customer satisfaction, 5 ) customer satisfaction has a negative effect on switching intentions, 6) customer satisfaction mediates the negative effect of core service quality on switching intentions, 7) customer satisfaction mediates the negative effect of encounter service quality on switching intentions. An important finding from this study is that it can confirm the concept of EDT in which customer satisfaction becomes a mediating variable between the relationship between core service quality and encounter with switching intentions.

scholarly journals The Effect of Profitability, Leverage, and Size on Environmental Disclosure with the Proportion of Independent Commissioners as Moderating

2020 ◽  
Vol 9 (2) ◽  
pp. 123-130
Author(s):  
Jalu Wicaksono Ardi
Keyword(s):  
Stock Exchange ◽  
Negative Relationship ◽  
Independent Directors ◽  
Company Size ◽  
Environmental Disclosure ◽  
Units Of Analysis ◽  
Negative Effect ◽  
The Relationship ◽  
Positive Effect

The purpose of this study is to evaluate the effect of profitability, leverage, and company size on environmental disclosure with the proportion of independent directors as moderator. A maximum of 61 agricultural and mining sector companies listed on the Indonesia Stock Exchange in 2014-2018 was the population of this report. The sampling method used purposing sampling, so with 45 units of analysis, we get 9 sample companies. The quantitative method used regression analysis for balance. The results show that profitability does not influence on environmental disclosure. Leverage has a negative effect on environmental disclosure. Company size has a positive effect on environmental disclosure. The proportion of independent directors is able to moderate the effect of profitability on environmental disclosure but is not able to moderate the effect of leverage and company size on environmental disclosure. This study concludes that leverage has a negative relationship with environmental disclosure and firm size has a positive relationship with environmental disclosure and the proportion of independent commissioners moderates the relationship between profitability and environmental disclosure. The findings show the important role of independent commissioners in environmental disclosure, namely providing investors with a balance and maintaining an unbiased and impartial atmosphere.

scholarly journals Investigating online shopping behaviour on mobile and fixed devices: The impact of scarcity and popularity cues

2021 ◽  
Author(s):  
◽  
Tessa Hoffman
Keyword(s):  
Perceived Risk ◽  
Purchase Intention ◽  
Online Shopping ◽  
Purchase Intentions ◽  
Negative Effect ◽  
The Impact ◽  
The Relationship ◽  
Positive Effect ◽  
Moderating Role

<p>Smartphones have become ubiquitous in consumers’ lives and have been identified as an important online channel. However, consumers have indicated a preference for purchasing products through their fixed devices, such as computers, and few studies have investigated situations where consumers might indicate greater purchase intentions on their mobile devices. This research examines the influence of scarcity messages and popularity cues on purchase intention in the context of online shopping. Two experiments were conducted to evaluate the differences between consumers using mobile and fixed devices.  Study one was a 3 (scarcity: limited quantity vs limited time vs no scarcity) x 2 (device: fixed vs smartphone) between-subjects design (N = 236). Study one found that in an online shopping context, limited-quantity scarcity messages (e.g. limited stock available) had a negative effect on purchase intention regardless of the consumer’s device. Furthermore, a consumer’s scepticism of advertising moderated the relationship. Perceived risk of online shopping was found to moderate the relationship between device and purchase intention.  Study two was a 2 (scarcity: limited quantity vs no scarcity) x 2 (popularity: ranking vs no ranking) x 2 (device: fixed vs smartphone) between-subjects design (N = 244). The study showed that a popularity cue had a positive effect on purchase intention. However, scarcity had no effect on purchase intention. Consumers in the smartphone conditions also had lower purchase intentions but this was not impacted by the inclusion of a scarcity message or popularity cue. Interestingly, credibility of the content did not moderate the relationships between scarcity and purchase intention, or popularity ranking and purchase intention.  These findings suggest that online scarcity messages do not increase purchase intention, in contrast to previous offline studies. The moderating role of scepticism on the scarcity message and purchase intention relationship indicates that consumers are suspicious of scarcity messages in an online context. However, it appears popularity cues enhance consumer purchase intentions online. Neither a scarcity message or a popularity cue increased purchase intention on a smartphone. The research demonstrates that scarcity messages are not as effective online as they have been shown to be in an offline context and that further research is required to understand how to increase consumer purchase intentions when shopping on a smartphone.</p>

scholarly journals Investigating online shopping behaviour on mobile and fixed devices: The impact of scarcity and popularity cues

2021 ◽  
Author(s):  
◽  
Tessa Hoffman
Keyword(s):  
Perceived Risk ◽  
Purchase Intention ◽  
Online Shopping ◽  
Purchase Intentions ◽  
Negative Effect ◽  
The Impact ◽  
The Relationship ◽  
Positive Effect ◽  
Moderating Role

<p>Smartphones have become ubiquitous in consumers’ lives and have been identified as an important online channel. However, consumers have indicated a preference for purchasing products through their fixed devices, such as computers, and few studies have investigated situations where consumers might indicate greater purchase intentions on their mobile devices. This research examines the influence of scarcity messages and popularity cues on purchase intention in the context of online shopping. Two experiments were conducted to evaluate the differences between consumers using mobile and fixed devices.  Study one was a 3 (scarcity: limited quantity vs limited time vs no scarcity) x 2 (device: fixed vs smartphone) between-subjects design (N = 236). Study one found that in an online shopping context, limited-quantity scarcity messages (e.g. limited stock available) had a negative effect on purchase intention regardless of the consumer’s device. Furthermore, a consumer’s scepticism of advertising moderated the relationship. Perceived risk of online shopping was found to moderate the relationship between device and purchase intention.  Study two was a 2 (scarcity: limited quantity vs no scarcity) x 2 (popularity: ranking vs no ranking) x 2 (device: fixed vs smartphone) between-subjects design (N = 244). The study showed that a popularity cue had a positive effect on purchase intention. However, scarcity had no effect on purchase intention. Consumers in the smartphone conditions also had lower purchase intentions but this was not impacted by the inclusion of a scarcity message or popularity cue. Interestingly, credibility of the content did not moderate the relationships between scarcity and purchase intention, or popularity ranking and purchase intention.  These findings suggest that online scarcity messages do not increase purchase intention, in contrast to previous offline studies. The moderating role of scepticism on the scarcity message and purchase intention relationship indicates that consumers are suspicious of scarcity messages in an online context. However, it appears popularity cues enhance consumer purchase intentions online. Neither a scarcity message or a popularity cue increased purchase intention on a smartphone. The research demonstrates that scarcity messages are not as effective online as they have been shown to be in an offline context and that further research is required to understand how to increase consumer purchase intentions when shopping on a smartphone.</p>

Analisis Peranan Kepuasan Dan Komitmen Sebagai Perantara Pengaruh Kualitas Jasa Tutorial Online Terhadap Loyalitas Mahasiswa

2018 ◽  
Vol 9 (2) ◽  
pp. 18-32
Author(s):  
Andy Mulyana ◽  
Devi Ayuni
Keyword(s):  
Service Quality ◽  
Structural Equation ◽  
Positive Influence ◽  
Management Program ◽  
Equation Modeling ◽  
Online Tutorial ◽  
Student Loyalty ◽  
The Relationship ◽  
Positive Effect

This study aims to evaluate the role of satisfaction and commitment as mediating the effect of service quality on student loyalty as the user of Open University's Online Tutorial. Based on data analysis on student of Management program 229 as respondents with Structural Equation Modeling (SEM), this study found the relationship between: (1) positive influence of service quality to satisfaction and loyalty of students using tuton; (2) the positive effect of satisfaction on student loyalty using tuton; (3) satisfaction is a mediator between service quality and loyalty of students using tuton. Conversely, commitment has no positive effect on student loyalty as a tuton user. In addition, commitment does not mediates the effect of satisfaction on the loyalty of tuton users. Keywords: service quality, satisfaction, commitment, loyalty

scholarly journals IPR Law Protection and Enforcement and the Effect on Horizontal Productivity Spillovers from Inward FDI to Domestic Firms: A Meta-analysis

2021 ◽  
Author(s):  
Danai Christopoulou ◽  
Nikolaos Papageorgiadis ◽  
Chengang Wang ◽  
Georgios Magkonis
Keyword(s):  
Intellectual Property ◽  
Property Rights ◽  
Intellectual Property Rights ◽  
Meta Analysis ◽  
Host Countries ◽  
Productivity Spillovers ◽  
Domestic Firms ◽  
The Relationship ◽  
Positive Effect

AbstractWe study the role of the strength of Intellectual Property Rights (IPR) law protection and enforcement in influencing horizontal productivity spillovers from inward FDI to domestic firms in host countries. While most WTO countries adopted strong IPR legislation due to exogenous pressure resulting from the signing of the Trade-Related Aspects of IPR (TRIPS) agreement, public IPR enforcement strength continues to vary significantly between countries. We meta-analyse 49 studies and find that public IPR enforcement strength has a direct positive effect on horizontal productivity spillovers from inward FDI to domestic firms and a negative moderating effect on the relationship between IPR law protection strength and horizontal productivity spillovers from inward FDI to domestic firms.

scholarly journals Sustainable Orientation of Management Capability and Innovative Performance: The Mediating Effect of Knowledge Management

2020 ◽  
Vol 12 (4) ◽  
pp. 1366
Author(s):  
Julio C. Acosta-Prado ◽  
Oscar H. López-Montoya ◽  
Carlos Sanchís-Pedregosa ◽  
Ulpiano J. Vázquez-Martínez
Keyword(s):  
Knowledge Management ◽  
Structural Equation ◽  
Health Sector ◽  
Mediating Effect ◽  
Equation Modeling ◽  
Innovative Performance ◽  
Management Capability ◽  
The Relationship ◽  
Positive Effect

The literature suggests that innovation allows organizations to reach a desirable level of sustainability. There is evidence to support the role of knowledge management (KM) as well as management capability (MC) in producing a sustainable approach at organizations. Furthermore, organizations commonly achieve sustainable practices through corporate social responsibility (CSR). In particular, the health sector is increasingly implementing CSR strategies, although with a narrow understanding of the factors to success. Hence, trends lead to asymmetric growth between organizations. This study aims to examine the mediating role of KM in the relationship between MC and innovative performance (IP) in 331 Health Provider Institutions (HPIs). The research reflective model was assessed through Partial Least Squares Structural Equation Modeling (PLS-SEM). According to the results, MC has a positive effect on IP, MC has a positive effect on KM, and KM has a positive effect on IP. Likewise, KM significantly mediates the relationship between MC and IP. Our findings support the importance of KM in addressing MCs in HPIs as it enables innovative practices to address CSR goals to achieve a sustainable impact. Moreover, this study contributes by expanding KM to contexts that are not usually studied, such as health in a South American country.

How does renqing influence purchase intentions in the Chinese business-to-business context?

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xun Zhang ◽  
Biao Xu ◽  
Jun Wu
Keyword(s):  
Positive Relationship ◽  
Purchase Intentions ◽  
Moderating Effect ◽  
Content Type ◽  
Mediating Role ◽  
Chinese Business ◽  
The Relationship ◽  
Business To Business ◽  
Positive Effect

Purpose This study aims to examine the relationship between renqing and purchase intentions and the mechanism of its impact in the Chinese business-to-business (B2B) context. Design/methodology/approach Renqing in China has played an important role in business relationships and has been receiving increased attention in both practice and theory. However, little is known about whether it can influence purchase intentions in a rational B2B condition. This research aims to examine the relationship between renqing and purchase intentions and the mechanism of its impact in the Chinese B2B context. Based on a survey of 1,010 industry buyers from 468 Chinese downstream buyer companies, the empirical findings indicate a positive relationship between renqing and purchase intentions and the mediating role of long-term orientation (LTO) for increasing purchase intentions. In addition, this study also finds that product involvement (PI) has a negative moderating effect on the relationship between renqing and purchase intentions, which means that renqing has a big positive effect on purchase intentions in low PI conditions. The results highlight several implications for B2B companies that sell products to Chinese enterprises. Findings The empirical findings indicate a positive relationship between renqing and purchase intentions and the mediating role of LTO for increasing purchase intentions. In addition, this study also finds that PI has a negative moderating effect on the relationship between renqing and purchase intentions, which means that renqing has a big positive effect on purchase intentions in low PI conditions. Originality/value First of all, by answering the research question, this study shows that renqing has a positive effect on purchase intentions in Chinese B2B context. Second, this study elucidates the influence mechanism of renqing on purchase intention and identifies the mediating effect of LTO and the moderating effect of PI.

scholarly journals The Relationship among Emotional Leadership, Job Satisfaction and Organizational Commitment: Taking China’s Hotel Industry as an Example

2020 ◽  
Vol 218 ◽  
pp. 04014
Author(s):  
Yixing Jin ◽  
Peiying Wu ◽  
Cheng Lin ◽  
Yingda Wang
Keyword(s):  
Job Satisfaction ◽  
Organizational Commitment ◽  
Hotel Industry ◽  
Mediating Role ◽  
Positive Effects ◽  
Emotional Leadership ◽  
The Impact ◽  
The Relationship ◽  
Positive Effect

This study investigated the impact of emotional leadership of leaders on organizational commitment of hotel employees, as well as the mediating role of job satisfaction. The results indicate that: (1) Emotional leadership and job satisfaction have positive effects on organizational commitment. (2) Emotional leadership has a positive effect on job satisfaction. (3) Job satisfaction plays a mediating role between emotional leadership and organizational commitment.

scholarly journals Investigating Organizational Commitment as the Outcome of Job Satisfaction: A Study of Banking Sector of Pakistan

2012 ◽  
Vol 2 (4) ◽  
pp. 146 ◽  
Author(s):  
Maryam Saeed Hashmi ◽  
Dr. Imran Haider Naqvi
Keyword(s):  
Job Satisfaction ◽  
Organizational Commitment ◽  
Banking Sector ◽  
Theory And Practice ◽  
Descriptive Statistics ◽  
Sample Characteristics ◽  
Intrinsic Job Satisfaction ◽  
The Relationship ◽  
Positive Effect

This study aims to elaborate the role of job satisfaction in committing employees with organization. This study tested the effect of both components of job satisfaction (intrinsic and extrinsic) of on organizational commitment in banking sector of Pakistan. Data was gathered from employees working in banks of Pakistan. The study has uses descriptive statistics (mean and standard deviation) to identify sample characteristics and inferential statistics (multiple linear regression) to find out the relationship between variables. Results showed the significant and positive effect of both components of job satisfaction on organizational commitment. This study is a contribution to theory and practice with an increased understanding on importance of job satisfaction in committing the employees with the organization.   Keywords: Intrinsic Job Satisfaction, Extrinsic Job Satisfaction, Organizational Commitment  

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