scholarly journals Phenotypic Plasticity and Local Adaptation of Leaf Cuticular Waxes Favor Perennial Alpine Herbs under Climate Change

Plants ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 120
Author(s):  
Luhua Yao ◽  
Dengke Wang ◽  
Dangjun Wang ◽  
Shixiong Li ◽  
Youjun Chen ◽  
...  
Keyword(s):  
Chain Length ◽  
Plant Species ◽  
Structural Equation ◽  
Equation Modeling ◽  
Average Chain Length ◽  
First Year ◽  
Cuticular Waxes ◽  
Plantago Asiatica ◽  
Second Year ◽  
Eastern Edge

Six perennial herbs (Plantago asiatica, Polygonum viviparum, Anaphalis lactea, Kobresia humilis, Leontopodium nanum and Potentilla chinensis) widely distributed in alpine meadows were reciprocally transplanted at two sites in eastern edge of Qinghai-Tibetan Plateau, Hongyuan (3434 m, 2.97 °C, 911 mm) and Qilian (3701 m, 2.52 °C, 472 mm), aiming to evaluate the responses of alpine plants to changing environments. When plants were transplanted from Hongyuan to Qilian, most plant species showed a decrease of total wax coverage in first year and reverse trend was observed for some plant species in second year. However, when plants were transplanted from Qilian to Hongyuan, the response of total wax coverage differed greatly between plant species. When compared with those in first year, plasticity index of average chain length of alkane decreased whereas carbon preference index of alkane increased at both Hongyuan and Qilian in second year. The total wax coverage differed between local and transplanted plants, suggesting both environmental and genetic factors controlled the wax depositions. Structural equation modeling indicated that co-variations existed between leaf cuticular waxes and leaf functional traits. These results suggest that alpine herbs adjust both wax depositions and chain length distributions to adapt to changing environment, showing climate adaptations.

Suicide Risk Among College Student

Crisis ◽  
2015 ◽  
Vol 36 (6) ◽  
pp. 416-423 ◽  
Author(s):  
Richard Shadick ◽  
Faedra Backus Dagirmanjian ◽  
Baptiste Barbot
Keyword(s):  
Sexual Minority ◽  
Students Of Color ◽  
Structural Equation ◽  
Suicide Risk ◽  
Equation Modeling ◽  
First Year ◽  
Chi Square ◽  
First Year College ◽  
Marginalized Groups ◽  
First Year College Students

Abstract. Background: Research on young adults in the general population has identified a relationship between sexual minority identification and risk for suicide. Differential rates of suicidal ideation and attempts have also been found across racial and ethnic groups. Aims: This study examined risk for suicide among university students, based on membership in one or more marginalized groups (sexual minority and racial minority identification). Method: Data were collected from first-year college students (N = 4,345) at an urban university. Structural equation modeling was employed to model a suicidality construct, based on which a "risk for suicide" category system was derived. Chi-square and logistic regression analyses were then conducted to estimate the relationship between the background variables of interest and suicide risk. Results: Students who identified as lesbian, gay, or bisexual (LGB) were associated with higher suicide risk than their heterosexual peers. Students of color were slightly less at risk than their heterosexual peers. However, LGB students of color were associated with elevated suicide risk relative to heterosexual peers. Conclusion: Results indicate that belonging to multiple marginalized groups may increase one's risk for suicide, though these effects are not simply additive. Findings highlight the complexity of the intersection between marginalized identities and suicidality.

Optimal Timing for Launching Installation of Tier 2 and 3 Systems of School-Wide Positive Behavioral Interventions and Supports

2021 ◽  
pp. 109830072199608
Author(s):  
Angus Kittelman ◽  
Sterett H. Mercer ◽  
Kent McIntosh ◽  
Robert Hoselton
Keyword(s):  
Longitudinal Study ◽  
Behavioral Interventions ◽  
Structural Equation ◽  
Equation Modeling ◽  
Optimal Timing ◽  
First Year ◽  
Tier 2 ◽  
Positive Behavioral Interventions ◽  
Tier 1 ◽  
Tier 3

The purpose of this longitudinal study was to examine patterns in implementation of Tier 2 and 3 school-wide positive behavioral interventions and supports (SWPBIS) systems to identify timings of installation that led to higher implementation of advanced tiers. Extant data from 776 schools in 27 states reporting on the first 3 years of Tier 2 implementation and 359 schools in 23 states reporting on the first year of Tier 3 implementation were analyzed. Using structural equation modeling, we found that higher Tier 1 implementation predicted subsequent Tier 2 and Tier 3 implementation. In addition, waiting 2 or 3 years after initial Tier 1 implementation to launch Tier 2 systems predicted higher initial Tier 2 implementation (compared with implementing the next year). Finally, we found that launching Tier 3 systems after Tier 2 systems, compared with launching both tiers simultaneously, predicted higher Tier 2 implementation in the second and third year, so long as Tier 3 systems were launched within 3 years of Tier 2 systems. These findings provide empirical guidance for when to launch Tier 2 and 3 systems; however, we emphasize that delays in launching advanced systems should not equate to delays in more intensive supports for students.

scholarly journals Does Personality Provide Indicators of Design Thinking Capacity?

2019 ◽  
Vol 9 (2) ◽  
pp. 80
Author(s):  
Kuan-Chen Tsai
Keyword(s):  
Design Education ◽  
Structural Equation ◽  
Design Thinking ◽  
Equation Modeling ◽  
First Year ◽  
Holistic View ◽  
Fast Learning ◽  
And Gender ◽  
The Relationship ◽  
Chinese Undergraduates

Design thinking takes an adaptive and holistic view toward product and user needs. It involves engaging in observation, fast learning, visualization, prototyping, and enhancing customer experience. Personality traits have been widely examined in the education field and at the same time design thinking is the main topic of design education. However, until now, there has been a lack of related studies investigating these two variables. As a result, the purpose of the current study is to examine the relationship between design thinking and personalities among Chinese design undergraduates. Convenience sampling was used to recruit 95 first-year Chinese fashion design college students in Taiwan. Two major findings were recorded. Based on zero-order correlations, some variables of personality and of design thinking were positively correlated among our Chinese undergraduates; however, taken as a whole, the structural equation modeling did not support this relationship. Further, age and gender did not play a role in these relationships. 

Understanding Academic Persistence through the Theory of Planned Behavior

2016 ◽  
Vol 20 (2) ◽  
pp. 215-235 ◽  
Author(s):  
Nathalie Roland ◽  
Mariane Frenay ◽  
Gentiane Boudrenghien
Keyword(s):  
Structural Equation ◽  
Academic Persistence ◽  
Drop Out ◽  
Self Report ◽  
Equation Modeling ◽  
Future Research ◽  
First Year ◽  
Extensive Literature ◽  
Descriptive Norms ◽  
Normative Factors

High drop-out rates among first-year university students have led many researchers to attempt to gain a better understanding of academic persistence. However, despite this extensive literature, only a few studies have taken normative factors into account. These normative factors may be an essential factor of influence for persistence as it is already the case for other behaviors. We therefore decided to study whether including injunctive and descriptive norms in the investigation might improve the understanding of persistence. To this end, we focused on the theory of planned behaviour which considers for background, motivational, and normative factors. Seven hundred and twenty-seven first-year college students were asked to complete a self-report questionnaire. A structural equation modeling technique revealed that the model including injunctive norms fits better with the data than the model without norms. However, this was not the case with descriptive norms. These results are examined in the Discussion section. Finally, directions for future research and practical implications are suggested.

The Development of Implicit Self-Esteem During Emerging Adulthood

2017 ◽  
Vol 9 (7) ◽  
pp. 835-843 ◽  
Author(s):  
Yuqi Wang ◽  
Wei Wu ◽  
Hairong Song ◽  
Mingzheng Wu ◽  
Huajian Cai
Keyword(s):  
Identity Development ◽  
Emerging Adulthood ◽  
Structural Equation ◽  
Rank Order ◽  
Self Esteem ◽  
Equation Modeling ◽  
First Year ◽  
Latent Growth ◽  
First Order ◽  
The University

Emerging adulthood is one of the most important life stages for self and identity development. The present research tracked the development of implicit self-esteem during emerging adulthood at both the group and individual levels. We used the implicit association test to assess implicit self-esteem with the improved D score as the index. We surveyed 327 students each year from the beginning of their first year of university until their graduation, with an extra assessment run in the middle of the first year. First-order autoregressive structural equation modeling indicated that implicit self-esteem remained quite stable during the university years in terms of rank-order stability. Latent growth modeling showed that implicit self-esteem decreased slightly during the university years with females initially manifesting a higher level. These findings enrich our understanding of implicit self-esteem and its development as well as self-construction during emerging adulthood.

scholarly journals Settings Kontribusi Online Learning Dalam Membantu Mahasiswa Memahami Akuntansi

2019 ◽  
Vol 1 (1) ◽  
pp. 60-67
Author(s):  
Luciana Haryono ◽  
Arief Fadhilah ◽  
Daniel
Keyword(s):  
Online Learning ◽  
User Satisfaction ◽  
Structural Equation ◽  
Information Quality ◽  
Equation Modeling ◽  
First Year ◽  
System Quality ◽  
First Year Students ◽  
Introductory Accounting ◽  
Online Learning Resources

Online learning is becoming an alternatives mode of study for students in studying accounting . This research aims to investigate the effectiveness of online learning in accounting learning process. This research was carried out by adopting DeLone and McLean model (2003) using Structural Equation Modeling (SEM) processed by STATA version 14. Respondents are the first year students of management undergraduate program, who took the introduction course of accounting. The course was facilitated by WileyPLUS, and online learning resources, as a supplementary materials of introductory accounting textbook, published by John Wiley and Sons. These research found positive relationships between information quality, system quality, service quality and user satisfaction and between user satisfaction and benefits. This paper provides empirical evidence to support that online learning effectively help students to study accounting better. Online learning providers need to improve the quality of the system and provide up to date information. Lecturers should be improve their contribution to assist students in using online learning.

scholarly journals Faktor-Faktor Yang Mempengaruhi Kesuksesan Implementasi Sistem Informasi Studi Kasus Sistem Informasi Akademik (SIAKAD) STKIP Muhammadiyah Pringsewu Lampung

2021 ◽  
Vol 4 (1) ◽  
pp. 30-39
Author(s):  
Susilo Hartono
Keyword(s):  
Structural Equation Modeling ◽  
Structural Equation ◽  
Success Factors ◽  
Sem Analysis ◽  
Equation Modeling ◽  
First Year ◽  
Validity And Reliability ◽  
Information Systems Success ◽  
First Year Students

This research used the success model of information system from Delone and Mc. Lean which has been modified based on the need and the situation at STKIP Muhammadiyah Pringsewu. The respondents were the first year students in the academic year 2012-2013 and the operators of SIAKAD. The number of the respondents were 196 students and 10 operators. The process of validity and reliability and the hyphotesa used Structural Equation Modeling (SEM). Which is analysed using Amos 20 software.The result of this research showed that from 5 hyphotesis which have been formulated, four of them were received. These hypothesis are the following : the quality of information influence the satisfying of the user ; the quality of the system influence the satisfying of the user; the trust influence the satisfying of the user; and the satisfying of the user influence the benefits of the SIAKAD. On the other hard, the quality of the service doesn’t has significant influence to the satisfying of the SIAKAD user. The success factors, which were resulted in this research, will be used as the suggestion and recomendation in the next SIAKAD development so that the sevice quality of SIAKAD to the students will increase. Keywords: Information Systems Success, DeLone and McLean Model, Structural Equation Modeling (SEM), Analysis of Moment Structures (AMOS).

Sense of Purpose and Progress Towards Degree in Freshman College Students

2020 ◽  
pp. 152102512097513
Author(s):  
Mariya A. Yukhymenko-Lescroart ◽  
Gitima Sharma
Keyword(s):  
College Students ◽  
Structural Equation ◽  
Self Report ◽  
Equation Modeling ◽  
First Year ◽  
Full Time ◽  
Positive Effects ◽  
Sense Of Purpose ◽  
Academic Standing ◽  
Freshman Students

This study examined whether first-time full-time freshman students’ sense of purpose predicted their progress towards a degree. Freshman students ( N = 421, 62.2% females) completed self-report measures of sense of purpose and academic commitments within the first month of starting college; a year later, the data on first-year progress towards a degree were matched with their responses. Structural equation modeling showed that while a sense of purpose did not directly predict progress towards a degree, awakening to purpose and altruistic purpose both had indirect positive effects on first-year GPA, academic standing, and retention through degree commitment. Additionally, altruistic purpose had indirect positive effects on first-year GPA through academic identity. The findings highlight that a sense of purpose may play an important role in persistence and attainment of a degree among college students.

scholarly journals Development of spatial ability extra tasks (SAET): problem solving with spatial intelligence

2022 ◽  
Author(s):  
Rita Nagy-Kondor ◽  
Saeed Esmailnia
Keyword(s):  
Spatial Ability ◽  
Structural Equation ◽  
Engineering Students ◽  
Spatial Abilities ◽  
Equation Modeling ◽  
First Year ◽  
Curved Surfaces ◽  
Spatial Skills ◽  
Spatial Intelligence ◽  
And Mathematics

AbstractSpatial ability contributes to performance in science, technology, engineering and mathematics (STEM). Spatial skills and creativity are required for engineering studies. Low spatial abilities can lead to the dropout of students’ university studies. In this study the Spatial Ability Extra Tasks (SAET) was developed to evaluate engineering students’ complex spatial abilities. A total of 93 first-year engineering students from University of Debrecen Faculty of Engineering and Sharif University of Technology in Tehran participated, with regard to final mathematical exam and their gender, participated in the study. SAET measures parts of spatial abilities: mental cutting and mental rotation and creativity. Analysis of the findings suggested that SAET is valid and reliable. The separate tests results have been statistically evaluated and conclusions were formulated. We used Structural Equation Modeling analysis. We separate two types of tasks by SAET which are Polyhedron part and Curved Surface part. According to obtained data, accomplished the results: students of University of Debrecen are more successful at Curved Surfaces. In addition students of Sharif University are more successful at Polyhedrons. The square cross section was found by most student in both countries in Polyhedrons. It is remarkable that first-year engineering students of Tehran are more successful at Polyhedrons by pentagon, hexagon and parallelogram solution; and students of Debrecen are more successful by square and rectangle solution. Students of Debrecen are more successful at Curved Surfaces to find circle solution of cylinder, cone and sphere; students of Tehran are more successful by finding parabola solution of cone.

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