Skin Spotting Variation Associated with Biometric and Reproductive Parameters in Naturalized Populations of Rainbow Trout, Oncorhynchus mykiss, from Southern Chile

2018 ◽  
Vol 11 (1) ◽  
pp. 25-37
Author(s):  
Nelson Colihueque ◽  
Francisco Javier Estay ◽  
Miguel Yáñez

Background: Skin pigmentation in fish is involved in various biological processes. In salmonids, the interactions of skin spottiness with biometric and reproductive parameters are mostly unknown, especially in naturalized populations influenced by different ecological factors. Objective: To associate skin spottiness variation with biometric and reproductive parameters in broodstocks of naturalized rainbow trout populations from southern Chile. Method: The number of dark spots below the lateral line was assessed in male and female broodstocks of rainbow trout from two reproductive seasons, years 2007 and 2012, and then this dataset was associated with biometric and reproductive parameters of the same individuals, using multivariate data analysis in the form of stepwise forward multiple regression. Results: Male body weight from year 2007 had a significant negative influence on the number of dark spots below the lateral line (P < 0.01), while the reproductive variables egg diameter and spawning time of females from years 2007 and 2012, respectively, had a significant positive influence on this parameter (P < 0.01). Conclusion: Our results indicate that there are male biometric parameters with a significant negative influence on skin spottiness. Our data also reveal that some reproductive parameters have a positive influence on skin spottiness. The identification of these reproductive parameters related to spottiness variation would reflect the reproductive quality of female broodstocks living in natural environments.

2018 ◽  
Vol 18 (5) ◽  

This study examines whether board diversity affects firm performance. We investigate this study using panel data of a sample of S&P 500 firms during a 12 year period. After controlling for industry, firm size, and other board composition variables, we find that all three board diversity variables of interest – gender, ethnicity, and age have a significant influence on firm performance. While ethnicity and age have a positive influence on firm performance, it was found that gender has a negative influence. Implications for future research are discussed.


Author(s):  
Guanghui Qiao ◽  
Xiao-li Zhao ◽  
Luqi Xin ◽  
Seokchool Kim

In this study, we examined South Korean residents’ travel-related behavioural intention for mainland China post-COVID-19 using an extended model of goal-directed behaviour. To do so, we integrated South Korean residents’ perceptions of country image (PCI), mass media, and concerns about travel into the framework of the original model of goal-directed behaviour (MGB). Structural equation modelling was used to identify the structural relationships among the latent variables. The results show that mass media had a positive influence on South Korean residents’ perception of China’s image, a negative influence on residents’ concerns, and a positive influence on residents’ behavioural intentions for travel overseas. Meanwhile, PCI had a positive influence on residents’ attitude towards travel overseas. The theoretical and practical implications of the study are discussed.


Author(s):  
Marco Cucculelli ◽  
Ivano Dileo ◽  
Marco Pini

AbstractWe examine whether the probability of innovating a company’s business model towards the Industry 4.0 paradigm is affected by external institutional support and family leadership. Industry 4.0 is the information-intensive transformation of global manufacturing enabled by Internet technologies aimed at reinventing products and services from design and engineering to manufacturing. Using a sample of 3000 firms from a corporate survey on the manufacturing industry in Italy, our results showed that family leadership has a significant positive influence on the adoption of Industry 4.0 business models, but only in terms of family ownership. By contrast, family management has a negative influence on the probability of adopting a new business model. However, this negative influence is almost totally offset by the presence of the Triple Helix, i.e. the external support by public institutions and universities, which counterbalances the lower propensity of family managers to adopt Industry 4.0 business models. This supporting role only occurs when institutions and universities act together.


1996 ◽  
Vol 315 ◽  
pp. 31-49 ◽  
Author(s):  
G. R. Grek ◽  
V. V. Kozlov ◽  
S. V. Titarenko

An experimental study of the effect of riblets on three-dimensional nonlinear structures, the so-called Λ-vortices on laminar-turbulent transition showed that riblets delay the transformation of the Λ-vortices into turbulent spots and shift the point of transition downstream. This result is opposite to the negative influence of such ribbed surfaces on two-dimensional linear Tollmien-Schlichting waves (the linear stage of transition). Thus, the ribbed surface influences laminar-turbulent transition structures differently: a negative influence on the linear-stage transition structures and a positive influence on the nonlinear-stage transition structures. It is demonstrated that transition control by means of riblets requires special attention to be paid to the choice of their location, taking into account the stage of transition.


2013 ◽  
Vol 141 (10) ◽  
pp. 3477-3497 ◽  
Author(s):  
Mingyue Chen ◽  
Wanqiu Wang ◽  
Arun Kumar

Abstract An analysis of lagged ensemble seasonal forecasts from the National Centers for Environmental Prediction (NCEP) Climate Forecast System, version 2 (CFSv2), is presented. The focus of the analysis is on the construction of lagged ensemble forecasts with increasing lead time (thus allowing use of larger ensemble sizes) and its influence on seasonal prediction skill. Predictions of seasonal means of sea surface temperature (SST), 200-hPa height (z200), precipitation, and 2-m air temperature (T2m) over land are analyzed. Measures of prediction skill include deterministic (anomaly correlation and mean square error) and probabilistic [rank probability skill score (RPSS)]. The results show that for a fixed lead time, and as one would expect, the skill of seasonal forecast improves as the ensemble size increases, while for a fixed ensemble size the forecast skill decreases as the lead time becomes longer. However, when a forecast is based on a lagged ensemble, there exists an optimal lagged ensemble time (OLET) when positive influence of increasing ensemble size and negative influence due to an increasing lead time result in a maximum in seasonal prediction skill. The OLET is shown to depend on the geographical location and variable. For precipitation and T2m, OLET is relatively longer and skill gain is larger than that for SST and tropical z200. OLET is also dependent on the skill measure with RPSS having the longest OLET. Results of this analysis will be useful in providing guidelines on the design and understanding relative merits for different configuration of seasonal prediction systems.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  

Purpose This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies. Design/methodology/approach This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context. Findings This research paper concentrates on the links between SME financial performance, business ties, and political ties. Business ties were revealed to be the fundamental microfoundations of formal strategic planning (FSP), by significantly boosting firms' financial performance. However, political ties were revealed to be something to avoid, in emerging market like Turkey, due to their distracting negative influence of firm performance. SMEs can overcome some of the disadvantages of their size by involving positive influence external parties in strategic work, to support internal stakeholders. Originality/value The briefing saves busy executives, strategists and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.


2019 ◽  
Vol 1 (4) ◽  
pp. 13
Author(s):  
Safitri Safitri ◽  
Alpon Satrianto

This research goal is looking for the effect of natural disaster, climate change, and environment quality to the amount of tourist visit to Indonesia. This research uses panel data from 2014 untill 2017, the data get from the related institutions, and uses multiple regression analysis. This research result: 1) Natural disaster has negative influence and it is not significant to tourist visit to Indonesia, 2) Climate change has positive and significant influence to tourist visit to Indonesia, and 3) Environment quality has positive influence and is not significant to the amount of torist visit to Indonesia.


2018 ◽  
Vol 14 (3) ◽  
pp. 228-248
Author(s):  
Rulli Hendriani ◽  
M. Syamsul Ma'arif ◽  
M. Joko Affandi

This study aims to 1) analyze the implementation of learning organization in PD ABC; 2) analyze the influence of learning organization towards performance improvement of PD ABC; 3) analyze the influence of leadership and organizational culture towards learning organizations, 4) analyze the influence of learning organization, leadership and organizational culture towards performance improvement of PD ABC, and 5) formulate a sustainable learning organization strategy to improve the performance of PD ABC. Methods in this research were Structural Equation Model (SEM) and Analytical Hierarchy Process (AHP). The results showed that 1) information systems and sharing of knowledge, organizational relationship, strategic leadership, collaboration and team learning need to be improved; 2) leadership has a positive influence and significant effect with learning organization but organizational culture has insignificant effect towards learning organization; 3) learning organization has a positive influence and significant effect towards improving PD ABC performance; learning organization has a positive influence and significant effect towards organizational performance, although leadership and organizational culture have a negative influence but insignificant effect towards performance organization; 4) in order to develop sustainable learning, PD ABC has to provide measurable evaluation and monitoring systems, transparent rewards and punishment, as well as competent people. Keywords: Leadership, learning organization, organizational culture, organizational performance, strategy Abstrak Penelitian ini bertujuan 1) menganalisis penerapan organisasi pembelajar di PDABC; 2) menganalisis pengaruh organisasi pembelajar terhadap organisasi pembelajar, 3) menganalisis pengaruh kepemimpinan dan budaya organisasi dengan organisasi pembelajar; 4) menganalisis pengaruh organisasi pembelajar, kepemimpinan, dan budaya organisasi terhadap peningkatan kinerja PD ABC; dan 5) memformulasikan strategi organisasi pembelajar berkelanjutan dalam upaya meningkatkan kinerja PD ABC. Metodologi penelitian ini mengambil data secara stratified random sampling ,analisadeskriptif,StructuralEquationModel (SEMLisrel), danAnalyticalHierarchy Process (AHP). Hasil penelitianadalah 1) sistem informasi dan penyebaran pengetahuan, hubungan organisasi,kepemimpinan strategis, kolaborasi dan pembelajaran tim masih perlu ditingkatkan; 2)kepemimpinan berpengaruh signifikan terhadap organisasi pembelajar, budaya organisasiberpengaruh tidak signifikan terhadap organisasi pembelajar; 3) organisasi pembelajarberpengaruh signifikan dengan kinerja organisasi, namun kepemimpinan dan budayaorganisasi secara langsung berpengaruh negatif namun tidak signifikan dengan kinerjaorganisasi 4) strategi meningkatkan kinerja PDABC melalui organisasi pembelajar yaitumenyediakan sistem evaluasi dan monitoring yang terukur serta reward dan punishment yangtransparan. Efektivitas kerja perlu didukung dengan penempatan orang yang tepat sesuai dengan kompetensinya dan melakukan pemberdayaan karyawan.Kata Kunci : Budaya organisasi, kepemimpinan, kinerja organisasi, organisasi pembelajar, strategi


2017 ◽  
Vol 12 (2) ◽  
pp. 227
Author(s):  
Sapari Sapari

This  research  examines the  connection between non debt tax shield and the change of leverage, between level of effective company tax and the change of leverage, and between operation income before depreciation and the change of leverage.This research takes 17 samples of  food and beverages companies listed in Jakarta Stock Exchange from 1st  January 1994 till 31st  December 1999. And this research uses data from 1994 – 1999 for the regression analysis. Multiple regression analysis is used to test hyphothesis 1 (H1), hyphothesis 2 (H2) and hyphothesis 3 (H3). Independent variables in the regression are level of effective company tax, non debt tax shield and operation income before depreciation, whilst independent variable in the regression is leverage.The result of this research proves that (1) non debt tax shield after the amendment of 1994 tax regulation (1995 – 1999) brings positive influence to the leverage change, (2) level of effective company tax after the amendment of 1994 tax regulation (1995 – 1999) brings negative influence to the leverage change, and (3) operation income before  depreciation  after the amendment of 1994 tax regulation (1995 – 1999) brings positive influence to the leverage change.


2019 ◽  
Vol 7 (5) ◽  
pp. 150-160 ◽  
Author(s):  
Tigor Sitorus ◽  
Ratlan Pardede ◽  
Ardi

Purpose: This study aims at investigating and testing the mediated effect of Hedging on the effect of profitability and liquidity toward share price at shares of LQ-45, listed in Indonesian Stock Exchange from2011 to 2015. The current research was conducted because the phenomenon and the fluctuations in price of shares were unavoidable. Methodology: The Structural Equation Modelling (SEM) by Amos was used to analyze the 110 observations of data. Main Findings: The result of analysis shows that; (1) the liquidity gives not significantly negative influence to share price, (2) the liquidity gives  significantly negative influence to hedging, (3) the profitability gives significantly positive influence to share price, (4) the profitability gives significantly negative influence to hedging, (5). Hedging gives significantly positive influence to share price. Implications/Applications: The present study provides new evidence that the mediated effect of Hedging on the influence of liquidity and profitability toward share price has more strength compared to the direct influence of liquidity but not for profitability.


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