Factors Influencing the Microdistribution of Two Sympatric Species of Plecoptera: An Experimental Study

1986 ◽  
Vol 43 (5) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. Dudley Williams
Keyword(s):  
Negative Relationship ◽  
Sympatric Species ◽  
Current Speed ◽  
Skin Mucus ◽  
Significant Negative Relationship ◽  
Beam Interruption ◽  
Substrate Size ◽  
Linear Addition ◽  
Paragnetina Media ◽  
The Relationship

The responses of nymphs of two species of perlid stoneflies to manipulation of some important features of their microhabitats were studied in laboratory stream tanks fitted with an infrared beam interruption system. The activity of both Paragnetina media (Walker) and Phasganophora capitata (Pictet) was significantly affected by current speed and substrate size, and by an interaction between the two. Regression analysis showed that activity for P. capitata was highest at 15 and 75 cm/s and minimal between 25 and 50 cm/s, while that for P. media was highest at 15 cm/s and lowest at 25 cm/s and above. For P. media there was a significant negative relationship between substrate size and activity at a current speed of 15 cm/s. The relationship between the activity of P. capitata and substrate size was not linear. Addition of trout skin mucus to the stream tanks caused an increase in the levels of activity of P. media but a decrease in the activity of P. capitata. Addition of nymphs of the mayfly Ephemerella subvaria to the tank containing P. media produced no effect. These findings suggest mechanisms that establish different microdistributions for sympatric species.

Incidental specialised vocabulary acquisition: a case of incidental medical terms acquisition from students’ perspective

2021 ◽  
Author(s):  
Elham Abdullah Ghobain ◽  
Keyword(s):  
Negative Relationship ◽  
Extended Period ◽  
Focus Group Discussions ◽  
Group Discussions ◽  
Medical Terms ◽  
Significant Negative Relationship ◽  
Post Test ◽  
Two Phases ◽  
The Relationship ◽  
Technical Terms

This study observes a particular group of students learning medical terms (MT) implicitly through studying medical subjects. That is, based on the policy followed in the context of the study, students shall not receive any deliberate terms instruction. This paper investigates their experiences and attitudes towards acquiring MT in such a situation. Students’ acquisition and proficiency, hypothesizing a positive relationship between the two constructs, are self-assessed through pre- and post-test surveys. The surveys included 114 and 95 students in each phase, respectively. Prior to the surveys, focus group discussions were conducted, according to which the questionnaire was developed. A statistical correlational Pearson test was done to examine the relationship between students’ proficiency and incidental terms acquisition. The results indicated a significant negative relationship between the two constructs tested. The study also tested the effect of time on increasing acquisition through conducting a paired independent t-test between the two sets of data. The results found that a more extended period was significant to incidental acquisition. Overall, through comparing the means, modes, and medians in the two phases (pre- and post-test), the findings reveal an increase in the students’ terms acquisition volume. However, students seem not to favour the approach and still advocate explicit instruction for technical terms.

scholarly journals Kecerdasan Emosi Dan Depresi Pada Mahasiswa Yang Sudah Menikah

2019 ◽  
Vol 6 (2) ◽  
pp. 146
Author(s):  
Azizah Fitriah
Keyword(s):  
Emotional Intelligence ◽  
Hypothesis Test ◽  
Negative Relationship ◽  
Field Research ◽  
Short Term ◽  
Significant Negative Relationship ◽  
Correlational Approach ◽  
The Individual ◽  
Married Students ◽  
The Relationship

Every human being will one day experience a tense period in the short term when facing known problems such as career pressures, family disputes or quarrels, material pressures, and personal despair, and we will think that this is depression, which is not is an important problem because it will resolve itself, but none of these fleeting conditions is depression. Good emotional intelligence can reduce aggression, especially in adolescents. Therefore, if emotions are managed successfully, the individual will be able to entertain themselves when overwritten by sadness, can release anxiety, moodiness or offense and rise quickly again from it all. This research is field research with a correlational approach, exploring the relationship between depression and emotional intelligence in married students. The results of the hypothesis test show that between emotional intelligence and depression in married students has a significant negative relationship (XY = -0.411; sig = 0.014 <0.05). This is in accordance with the data obtained from the SPSS 19 for Windows program, stating that r table 0.334 and r xy (r hit) -0.411, said to be significant if r xy = 0.411> r table = 0.334. In other words, the higher the emotional intelligence of students who are married, the lower the possibility of depression.

scholarly journals The relationship between inter-organizational trust and performance

2012 ◽  
Vol 60 (4) ◽  
pp. 89-98 ◽  
Author(s):  
Roman Fiala ◽  
Martin Prokop ◽  
Iva Živělová
Keyword(s):  
Structural Equation ◽  
Organizational Trust ◽  
Negative Relationship ◽  
Fit Indices ◽  
Supplier Performance ◽  
Significant Negative Relationship ◽  
Model Fit Indices ◽  
And Performance ◽  
Using Data ◽  
The Relationship

The article deals with an investigation of the relationship between inter-organizational trust and performance. Using data obtained in a questionnaire survey in 373 organizations with more than 20 employees with their seat in the Czech Republic, we found the relationship between inter-organizational trust and supplier performance, mediated by the level of conflict. Also, the statistically significant negative relationship between inter-organizational trust and costs of negotiation and the statistically significant positive relationship between supplier performance and perceived performance were confirmed. The hypothesis on the statistically significant relationship between inter-organizational trust and negotiating costs was not confirmed. The structural equation modelling technique was used in the calculations. The calculated model fit indices (CFI, NFI, NNFI) with values over 0.9 demonstrate a very good quality of the model.

scholarly journals Perfectionism and Writing Performance of Chinese EFL College Learners

2020 ◽  
Vol 13 (8) ◽  
pp. 35
Author(s):  
Lijing Lin
Keyword(s):  
Negative Relationship ◽  
L2 Writing ◽  
Parental Criticism ◽  
Linguistic Complexity ◽  
Personal Standards ◽  
Writing Performance ◽  
Significant Negative Relationship ◽  
College Learners ◽  
L2 Learning ◽  
The Relationship

In the second language acquisition domain, researchers have devoted tremendous efforts to studying the relationship between L2 learning and some socio-affective factors, such as anxiety, motivation, etc. However, little research has been done to examine whether and how perfectionism, a psychological trait, affects L2 learning and L2 performance. The present study aims to fill this gap and investigate the relationship between the level of perfectionism and L2 performance among Chinese EFL college learners. Two specific questions are raised: (1) What is the relationship between perfectionism and L2 writing performance in terms of linguistic complexity, accuracy, and fluency? (2) What is the relationship between the six dimensions of perfectionism (Concern over Mistakes, Personal Standards, Parental Expectations, Parental Criticism, Doubts about Actions, Organization) and L2 writing performance in terms of linguistic complexity, accuracy, and fluency? To answer these questions, forty second-year students from Guangdong University of Foreign Studies majoring in English participated in the present study. The participants were required to compose a piece of English argumentative writing on the online system and then complete a 35-item Multidimensional Perfectionism Scale online immediately. The collected data were then processed and analyzed through SPSS (v. 17). The results of the analysis revealed that: (1) one of the measures of syntactic complexity has a significant negative relationship with perfectionism; (2) Personal Standards, one of the six dimensions of perfectionism, has a significant negative relationship with the participants&rsquo; L2 writing performance; (3) both Parental Expectations and Parental Criticism are found negatively correlated with the fluency aspect of the writing performance and the relationships have a significant effect. The implications of the findings are suggested for pedagogy and L2 learning.

scholarly journals HUBUNGAN ANTARA EFIKASI DIRI DENGAN KECEMASAN MENGHADAPI PERTANDINGAN PADA ATLET DI SEKOLAH SEPAK BOLA APAC INTI

2019 ◽  
Vol 1 (3) ◽  
pp. 314-323
Author(s):  
Leni DarmaWanti ◽  
Margaretta Erna Setianingrum
Keyword(s):  
Correlation Coefficient ◽  
Self Efficacy ◽  
Negative Relationship ◽  
Sampling Technique ◽  
Male Students ◽  
Research Results ◽  
School Anxiety ◽  
Significant Negative Relationship ◽  
Correlational Method ◽  
The Relationship

This study aims to determine the relationship between self-efficacy with anxiety facing matches in athletes at the Apac Inti soccer school. Anxiety will arise when faced with something new such as facing a match. Athletes who master physical, technical, and good tactics, but if an athlete's mind is disturbed by excessive negative things, it can interfere with concentration and not optimal in the competition, causing athletes to feel anxious. The population in this study were 40 male students of Apac Inti aged 15-18 years. This research uses a quantitative correlational method with saturated sampling technique. Based on the research results obtained correlation coefficient (r) = -0.547; p <0.05 and it can be concluded that there is a significant negative relationship between self-efficacy with anxiety facing the match in athletes at Apac Inti soccer school.

Corporate governance and dividends payout: are they substitutes or complementary?

2015 ◽  
Vol 9 (2) ◽  
pp. 177-194 ◽  
Author(s):  
Samuel Jebaraj Benjamin ◽  
Mazlina Mat Zain
Keyword(s):  
Corporate Governance ◽  
Agency Costs ◽  
Negative Relationship ◽  
Board Independence ◽  
Board Meeting ◽  
Dividend Payout ◽  
Content Type ◽  
Significant Negative Relationship ◽  
The Relationship ◽  
Unique Relationship

Purpose – This paper aims to furnish incremental insights on dividends and corporate governance (CG) by addressing the relationship between board meeting frequency and board independence with dividend payout. In particular, this study aims to investigate whether CG attributes are substitutes to control agency problem within the Malaysian context. Design/methodology/approach – This paper examines panel data on a sample of 114 Malaysian firms (798 observations) for seven years from 2002 to 2008. Findings – Based on 798 firm-year observations for the period from 2002 to 2008, the results show significant negative relationship between CG (board independence, board meeting frequency) and dividend payout. This suggests that CG and dividend payout are substitutes in reducing agency costs. Our study provides empirical evidence consistent with the “substitution argument”, indicating that firms with weak CG need to establish reputation by paying more dividends. Specifically, the findings indicate that firms with a higher proportion of independent directors and boards of director that meet more frequent pay lower dividends. Originality/value – This paper provides evidence on previously untested governance characteristics in relation to how they act as substitute mechanisms with dividends for reducing agency costs. The results builds a strong case for the fresh strand of knowledge on dividends and CG which tests each CG variables to understand each of its unique relationship with dividends in line with the dividends outcome or substitute theory.

scholarly journals Farmers’ perception of beneficial effects and limitations of vermicompost

2018 ◽  
Vol 5 (1) ◽  
pp. 19-25
Author(s):  
Md Shiduzzaman ◽  
Humyra Akhter ◽  
Mohammad Bashir Ahmed ◽  
Md Matiul Islam
Keyword(s):  
Positive Relationship ◽  
Negative Relationship ◽  
Training Experience ◽  
Interview Schedule ◽  
Beneficial Effects ◽  
Significant Negative Relationship ◽  
Spss Software ◽  
The Relationship ◽  
Day By Day ◽  
Scale Data

Vermicompost is very useful manure which is becoming popular day by day. However, its perception by the farmers is not yet assessed in the southwestern region of Bangladesh. The main objectives of this study were to determine the farmers’ perception of beneficial effects and limitations of vermicompost and to explore the relationship between selected characteristics of the farmers’ and their perception of beneficial effects and limitations of vermicompost. Data were collected using an interview schedule from randomly selected 60 respondents. Locale was three villages namely Lokhpur, Bollokhpur and Vobna under Fakirhat upazila of Bagerhat district. Faceto- face interview was conducted during 7 to 29 May, 2016. Farmers’ perception regarding the beneficial effects and limitations of vermicompost was measured using 5- point Likert type scale. Data were analyzed using SPSS software and farmers’ perception index was calculated. Majority (66.7 percent) of the respondents had moderate perception while 18.3 percent and 15 percent of them had less and high perception, respectively, on the beneficial effects and limitations of vermicompost. Among seven selected characteristics of the respondents, age showed a significant negative relationship with their perception of beneficial effects and limitations of vermicompost while training experience of the respondents showed a significant positive relationship with their overall perception. Thus, arrangement of training could pave the way of high perception of beneficial effects and limitations of vermicompost.Res. Agric., Livest. Fish.5(1): 19-25, April 2018

Finger Tremor and Extrapyramidal Side Effects of Neuroleptic Drugs

1979 ◽  
Vol 134 (5) ◽  
pp. 488-493 ◽  
Author(s):  
Paul Collins ◽  
Ian Lee ◽  
Peter Tyrer
Keyword(s):  
Side Effects ◽  
Negative Relationship ◽  
Peak Frequency ◽  
Neuroleptic Drug ◽  
Neuroleptic Drugs ◽  
Extrapyramidal Side Effects ◽  
Significant Negative Relationship ◽  
Tremor Frequency ◽  
Finger Tremor ◽  
The Relationship

SummaryFinger tremor and extrapyramidal side-effects (EPSEs) were measured in seven patients before and during neuroleptic drug treatment to assess the relationship between the onset of EPSEs and changes in finger tremor spectra. Tremor and EPSEs were also measured in twelve patients stabilized on neuroleptic drugs to determine whether tremor could provide a reliable index of the presence and severity of extrapyramidal system disturbance. A downward shift in peak tremor frequency was noted within 48 hours of starting neuroleptic drug therapy, usually before the onset of EPSEs, and a significant negative relationship between the severity of EPSEs and tremor frequency (but not tremor amplitude). The peak frequency of finger tremor is thus a sensitive index of extrapyramidal disturbance and might be of value in predicting which patients taking neuroleptic drugs need anti-parkinsonian therapy.

Corporate Culture as a Mediator in the Relationship Between Ethical Leadership and Personal Internet Use

2017 ◽  
Vol 24 (3) ◽  
pp. 357-371 ◽  
Author(s):  
Pablo Zoghbi-Manrique-de-Lara ◽  
Mercedes Viera-Armas
Keyword(s):  
Corporate Culture ◽  
Ethical Leadership ◽  
Internet Use ◽  
Practical Implication ◽  
Negative Relationship ◽  
Investment Banks ◽  
Number Of Factors ◽  
Significant Negative Relationship ◽  
City Of London ◽  
The Relationship

Despite the large number of factors at work that have been linked to personal Internet use (PIU), ethical leadership has not yet been examined. The first aim of this study is to test whether ethical leadership is associated with employees’ participation in PIU, specifically with cyberloafing and e-citizenship. The article then proposes an explanation for this linkage. The prediction is made that ethical leadership influences the way followers perceive corporate culture, which, in turn, leads them to PIU. Questionnaire data from 300 employees at 100 investment banks in the City of London on ethical leadership, Cameron and Quinn’s corporate cultures, cyberloafing, and e-citizenship were analyzed. Results found a significant negative relationship between ethical leadership and cyberloafing, and a positive relationship with e-citizenship. Once corporate culture was entered into the model as a mediator, ethical leadership also showed significant links with corporate culture, which, in turn, acted as a significant mediator. All the culture types performed as partial mediators in ethical leadership’s association with cybercivism, and only adhocracy culture performed as a full mediator in the case of cyberloafing. A practical implication is that managers should pay explicit attention to the advantages of supervising PIU with ethical values and, especially in the case of cyberloafing, with the innovative values of adhocracy culture.

The impact of ticks on Bufo marinus from native habitats

Parasitology ◽  
1996 ◽  
Vol 113 (2) ◽  
pp. 199-206 ◽  
Author(s):  
M. Lampo ◽  
P. Bayliss
Keyword(s):  
Negative Relationship ◽  
Specific Weight ◽  
Bufo Marinus ◽  
Rate Of Change ◽  
Density Dependent ◽  
Significant Negative Relationship ◽  
Induced Changes ◽  
The Impact ◽  
The Relationship ◽  
Native Habitats

SUMMARYWe analysed the patterns of tick distribution on 2274 adult toads from Venezuela and Brazil, to explore whether these ectoparasites have any impact on the survival of Bufo marinus. A maximum-likelihood analysis showed that aggregation levels of ticks decreased significantly with the mean intensity of infection. This decline could be attributed to a density-dependent reduction of ticks within toads, density-dependent tick-induced toad mortality and/or density-dependent tick-induced changes in toad susceptibility. However, the relationship between the rate of change in tick loads and tick burdens from recaptured toads indicated that neither the loss of ticks within toads nor the toad susceptibility to further infection were dependent upon tick burdens. Therefore, we can indirectly infer that density-dependent tick-induced toad mortality is responsible for the observed decline in aggregation levels with tick age and burdens. On the other hand, a significant negative relationship between tick burdens and the size-specific weight of toads suggested that ticks may also have a significant impact on the patterns of weight deposition of adult toads. This evidence suggests that these ectoparasites may play an important role in regulating the densities of B. marinus in native habitats.

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