Assessing the importance of transformational leadership competencies and supply chain learning to green innovation: construction practitioners’ perspectives

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hai Pham ◽  
Tho Pham ◽  
Chau Ngoc Dang

Purpose This study aims to assess the importance of transformational leadership competencies, as well as supply chain learning, to green innovation in construction at the supply chain level. Design/methodology/approach A questionnaire survey is conducted to collect data from construction firms in Vietnam. Many statistical analysis methods – including the Shapiro-Wilk test, one-sample Wilcoxon signed-rank test and Kruskal-Wallis test – are performed to achieve the research objectives. Findings The results indicate that the importance of most transformational leadership competencies is similarly perceived among different role groups (i.e. directors/deputy directors, project managers, consultants, quantity surveyors and designers). Research limitations/implications This study enriches the understanding of leadership research in construction at the supply chain level and also develops a theoretical framework for theory testing research, where the relationships of transformational leadership competencies and supply chain learning with green innovation are highlighted. Originality/value Research on leadership in the green supply chain context is still limited, especially in the construction industry. Thus, this study is conducted to fill this gap of research.

2018 ◽  
Vol 2 (2) ◽  
pp. 94-109
Author(s):  
Denis S. Clayson ◽  
Alfred E. Thal, Jr ◽  
Edward D. White III

Purpose The purpose of this study was to investigate the stability of the cost performance index (CPI) for environmental remediation projects as the topic is not addressed in the literature. CPI is defined as the earned value of work performed divided by the actual cost of the work, and CPI stability represents the point in time in a project after which the CPI varies by less than 20 percent (measured in different ways). Design/methodology/approach After collecting monthly earned value management (EVM) data for 136 environmental remediation projects from a United States federal agency in fiscal years 2012 and 2013, the authors used the nonparametric Wilcoxon signed-rank test to analyze CPI stability. The authors also used nonparametric statistical comparisons to identify any significant relationships between CPI stability and independent variables representing project and contract characteristics. Findings The CPI for environmental projects did not stabilize until the projects were 41 percent complete with respect to project duration. The most significant factors contributing to CPI stability were categorized into the following managerial insights: contractor qualifications, communication, stakeholder engagement, contracting strategy, competition, EVM factors, and macro project factors. Originality/value As CPI stability for environmental remediation projects has not been reported in the literature, this research provides new insights to help project managers understand when the CPIs of environmental remediation projects stabilize and which factors have the most impact on CPI stability.


2016 ◽  
Vol 34 (4) ◽  
pp. 683-695 ◽  
Author(s):  
Shamima Yesmin ◽  
S.M. Zabed Ahmed

Purpose The aim of this paper was to compare university students’ preferences for searching the library catalogue via the library’s Koha online public access catalogue (OPAC) or its discovery tool VuFind. Design/methodology/approach A total of 175 students responded to a questionnaire-based survey through which their demographic data, duration (years) of computer use and their self-reported levels of computer skills were obtained. Students were asked what interfaces they use for catalogue searching and to rate their opinion on the relevant interfaces on a seven-point Likert scale. Mann–Whitney and Kruskal–Wallis tests were conducted to statistically compare the differences between students’ demographic/individual characteristics and their ratings on the respective interfaces. For those students who used both systems, differences between their Likert ratings were assessed using a one-tailed Wilcoxon signed rank test. Findings The results showed that there were no significant differences among students in terms of their ratings on either the OPAC or VuFind interfaces. Wilcoxon signed ranks test indicated that significantly more students thought that VuFind was more usable than the Koha OPAC. Originality/value This is a pioneering study of the current use of the OPAC and discovery tools by university students and their preferences for searching catalogue information through these systems. It is hoped that the findings of this study will encourage researchers to conduct task-based usability studies with various cataloguing tools and this could yield new and improved interaction designs for library catalogue searching.


2014 ◽  
Vol 22 (1) ◽  
pp. 56-72 ◽  
Author(s):  
Nadana Abayadeera ◽  
Kim Watty

Purpose – The purpose of this paper is to investigate the generic skills that are important for the career success of accounting graduates in Sri Lanka from the perspectives of university educators and employers. Design/methodology/approach – Bui and Porter's (2010) expectation-performance gap framework was modified to match with the context of the current study. Data collected via questionnaire survey was analysed for non-parametric tests: the Wilcoxon signed-rank test and the Mann-Whitney test, using SPSS version 20, and quantified the expectation-performance gap and its components. Findings – The major finding of this research is that the main cause for the expectation-performance gap, as identified in the analysis of the constraint gap is university educators’ low confidence in teaching the required generic skills for career success of graduates. However, university educators are aware of the employer expectations of graduate accountants in terms of generic skills. Employers indicated that many of the generic skills are not achieved by the accounting graduates. Practical implications – Findings of this study reflect the importance of expanding the accounting curricula by embedding and assessing generic skill development activities. In addition, it is vital to develop the capacities of university educators in terms of teaching and assessing generic skills in accounting degree programmes. Originality/value – This study contributes to the literature as one of few studies that investigate the generic skills development of accounting graduates in Asia, particularly in Sri Lanka.


1991 ◽  
Vol 74 (1) ◽  
pp. 55-59 ◽  
Author(s):  
Takamasa Kayama ◽  
Takashi Yoshimoto ◽  
Shunichi Fujimoto ◽  
Yoshiharu Sakurai

✓ Oxygen pressure (pO2) in brain tumors, pO2 in brain cortex surrounding the tumors, and PaO2 were measured simultaneously during total resection in 16 patients with previously untreated brain tumors in order to detect hypoxic regions within the tumors. When the inhaled O2:N2O ratio was 1:3 under enflurane anesthesia, mean PaO2 was 109.2 ± 5.8 mm Hg, a rather high value when compared with that obtained when air is inhaled under atmospheric pressure. The simultaneously measured intratumoral pO2 and pO2 in brain cortex surrounding the tumor were 15.3 ± 2.3 and 59.8 ± 6.5 mm Hg, respectively. Each intratumoral pO2 value was significantly lower than that of pO2 in brain cortex surrounding the tumor (mean < 30 mm Hg, Wilcoxon signed rank test, p < 0.005) and influenced the oxygen effects on radiation. These results appear to confirm that there are hypoxic regions within human brain tumors. A comparison between intratumoral pO2 and either the angiographic or contrast-enhanced computerized tomography scans of the tumor vasculature disclosed no correlation.


2018 ◽  
Vol 62 (3) ◽  
Author(s):  
J. A. Dijkstra ◽  
T. van der Laan ◽  
O. W. Akkerman ◽  
M. S. Bolhuis ◽  
W. C. M. de Lange ◽  
...  

ABSTRACTAmikacin, kanamycin, and capreomycin are among the most important second-line drugs for multidrug-resistant tuberculosis. Although amikacin and kanamycin are administered at the same dose and show the same pharmacokinetics, they have different WHO breakpoints, suggesting that the two drugs have different MICs. The aim of this study was to investigate possible differences in MICs between the aminoglycosides and capreomycin. Using the direct concentration method, a range of concentrations of amikacin, kanamycin, and capreomycin (0.25, 0.50, 1.0, 2.0, 4.0, 8.0, 16.0, 32.0, and 64.0 mg/liter) were tested against 57 clinicalMycobacterium tuberculosisstrains. The 7H10 agar plates were examined for mycobacterial growth after 14 days. At 2 mg/liter, 48 strains (84%) were inhibited by amikacin and only 5 strains (9%) were inhibited by kanamycin (P< 0.05, Wilcoxon signed-rank test). The median MICs of amikacin, kanamycin, and capreomycin were 2, 4, and 8 mg/liter, respectively. No difference in amikacin, kanamycin, and capreomycin MIC distributions was observed between multidrug-resistant strains and fully susceptible strains. The results indicate that amikacin is more active than kanamycin and capreomycin againstM. tuberculosiswith the absolute concentration method. Determination of the impact of this difference on clinical outcomes in daily practice requires a prospective study, including pharmacokinetic and pharmacodynamic evaluations.


2020 ◽  
Vol 14 (1) ◽  
pp. 49-69
Author(s):  
Shantanu Ghosh ◽  
Tarak Nath Sahu

Purpose This study aims to measure and further compare the countries in terms of the achievement in the degree of financial inclusion over the study period and between income groups considering 26 nations from Asia for the period 2013-2017. Design/methodology/approach While measuring the degree of financial inclusion, the study prepares an index using weighted arithmetic mean and the inverse of the Euclidean distance method. Further, comparison between the study period and between the income groups has been made using the dependent samples t-test as well as the Wilcoxon signed-rank test and independent samples t-test, respectively. Findings The study extends empirical insights by laying out the ranks for the countries considered for each of the study periods individually as well as in terms of mean financial inclusion scores for the study period. Further, comparison in terms of mean financial inclusion scores shows significant differences between the income groups, whereas the differences between the study periods turn out to be non-significant. Research limitations/implications Less availability of intended variables over time restricts the predictive capability of sketching the phenomena in a true sense and claims further an exhaustive research to pursue in the future. Practical implications With the declining trend except for 2016-2017 in the achievement of financial inclusion scores over time, the study suggests emphasizing the initiatives targeted to include the excluded within the ambit of the formal financial system, which somehow seems unstable. Originality/value The novelty of the study lies in the portrayal of a measure that seems representative of the scale for development with deeper insight.


Jurnal NERS ◽  
2016 ◽  
Vol 11 (2) ◽  
pp. 176
Author(s):  
PUTU WIDHI SUDARIANI

Introduction: Leadership competencies are unsuitable that given the leadership to employees, can decrease the motivation, performance and ultimately job satisfaction. This research was conducted to develop a leadership competency model as an effort to improve the motivation and performance of nurses so as to improve health services. Methods: This research have two phase, phase one is analytic observational with 140 sample, analysis data with partial least square (PLS), formulation of strategic issues using focus group discussion (FGD), then make a modul with some expertise. Phase two is quasy experimental with 32 sample divided into two group, there are treatment group and control group. Analysis data in phase two with wilcoxon signed rank test and mann whitney. Result and analysis: Phase one there is influence of internal factors (knowledge, skills, and values) to the leadership competencies (t = 3.728> 1.96), there is influence of external factors (cultural organizations) to the leadership competencies (t = 2.257> 1.96), competence leadership influence motivation (t = 3,432> 1,96), leadership competencies influence to performance (t = 2.878> 1.96). The second phase, calculation with Wilcoxon signed rank test showed there is difference motivation in treatment group pre-test and post-test, Mann-Whitney test showed there is influence of development leadership competency model to the motivation of nurses. Test Wilcoxon signed rank test for performance of nurses showed there is difference between pre-test and post-test, Mann-Whitney test was obtained there is influence development of leadership competency model to the performance of nurses. Conclution: Development of leadership competency model can increase the motivation and performance of nurses.Keyword: leadership competences, motivation, performance, nursesABSTRAK: Pengantar: Kepemimpinan kompetensi kurang pas yang diberikan pimpinan kepada karyawan, dapat menurunkan motivasi, kinerja dan akhirnya kepuasan kerja. Penelitian ini dilakukan untuk mengembangkan model kompetensi kepemimpinan kepala ruang sebagai upaya peningkatkan motivasi dan kinerja perawat pelaksana sehingga dapat meningkatkan pelayanan kesehatan. Metode: Penelitian ini memiliki dua fase, fase pertama adalah analitik observasional dengan 140 sampel, analisis data dengan parsial least square (PLS), perumusan isu strategis menggunakan focus group discussion (FGD), kemudian membuat modul bersama pakar. Fase kedua adalah quasi eksperimental dengan 32 sampel dibagi menjadi dua kelompok terdiri dari kelompok perlakuan dan kelompok kontrol. Data analisis di tahap kedua ini menggunakan wilcoxon signed rank test dan mann whitney. Hasil dan analisis: Tahap pertama yaitu ada pengaruh signifikan faktor internal (pengetahuan, keterampilan, dan nilai) terhadap kompetensi kepemimpinan (t=3,728>1,96), pengaruh signifikan faktor eksternal (budaya organisasi) terhadap kompetensi kepemimpinan (t=2,257>1,96), Kompetensi kepemimpinan berpengaruh terhadap motivasi (t=3.432>1,96), Kompetensi kepemimpinan berpengaruh terhadap kinerja (t=2,878>1,96). Tahap kedua perhitungan wilcoxon signed rank test pda motivasi menunjukkan ada beda kelompok perlakuan pre-test dan post-test, uji mann-whitney ada pengaruh pengembangan model kompetensi kepemimpinan kepala ruang terhadap motivasi perawat pelaksana. Uji wilcoxon signed rank test kinerja perawat pelaksana menunjukkan ada beda antara pre-test dan post-test, uji mann-whitney diperoleh ada pengaruh pengembangan model kompetensi kepemimpinan kepala ruang terhadap kinerja. Kesimpulan: Pengembangan model kompetensi kepemimpinan dapat meningkatkan motivasi dan kinerja perawat.  Kata kunci: kompetensi kepemimpinan, motivasi, kinerja, perawat 


2003 ◽  
Vol 98 (1) ◽  
pp. 21-30 ◽  
Author(s):  
Daryl R. Fourney ◽  
Donald F. Schomer ◽  
Remi Nader ◽  
Jennifer Chlan-Fourney ◽  
Dima Suki ◽  
...  

Object. The current North American experience with minimally invasive vertebro- and kyphoplasty is largely limited to the treatment of benign osteoporotic compression fractures. The objective of this study was to assess the safety and efficacy of these procedures for painful vertebral body (VB) fractures in cancer patients. Methods. The authors reviewed a consecutive group of cancer patients (21 with myeloma and 35 with other primary malignancies) undergoing vertebro- and kyphoplasty at their institution. Ninety-seven (65 vertebro- and 32 kyphoplasty) procedures were performed in 56 patients during 58 treatment sessions. The mean patient age was 62 years (± 13 years [standard deviation]) and the median duration of symptoms was 3.2 months. All patients suffered intractable spinal pain secondary to VB fractures. Patients noted marked or complete pain relief after 49 procedures (84%), and no change after five procedures (9%); early postoperative Visual Analog Scale (VAS) pain scores were unavailable in four patients (7%). No patient was worse after treatment. Reductions in VAS pain scores remained significant up to 1 year (p = 0.02, Wilcoxon signed-rank test). Analgesic consumption was reduced at 1 month (p = 0.03, Wilcoxon signed-rank test). Median follow-up length was 4.5 months (range 1 day–19.7 months). Asymptomatic cement leakage occurred during vertebroplasty at six (9.2%) of 65 levels; no cement extravasation was seen during kyphoplasty. There were no deaths or complications related to the procedures. The mean percentage of restored VB height by kyphoplasty was 42 ± 21%. Conclusions. Percutaneous vertebro- and kyphoplasty provided significant pain relief in a high percentage of patients, and this appeared durable over time. The absence of cement leakage—related complications may reflect the use of 1) high-viscosity cement; 2) kyphoplasty in selected cases; and 3) relatively small 3volume injection. Precise indications for these techniques are evolving; however, they are safe and feasible in well-selected patients with refractory spinal pain due to myeloma bone disease or metastases.


2018 ◽  
Vol 30 (3) ◽  
pp. 150-161
Author(s):  
Adi Pratama ◽  
Martina Dwi Mustika ◽  
Bertina Sjabadhyni

Purpose This study focuses on the relationship between contingent reward behavior and subordinate employees’ performance in the fast-moving consumer goods (FMCG) sector. Design/methodology/approach The instruments used in this study were the leader–member exchange questionnaire and the contingent reward behavior questionnaire, which was completed by salespeople. Findings The results of the study (which assessed 37 respondents) indicate a meaningful relationship between contingent reward behavior and leader–member exchange. Based on these results, researchers focused on one division in the sales department that has a low leader–member exchange by providing intervention in the form of leadership coaching. The sigficant results between pre- and post-test differences, using Wilcoxon signed-rank test, indicate that the coaching intervention improved contingent reward behavior and increased leader–member exchange. Research limitations/implications The main limitation of this study was that it involved only 44 salespeople from one company. Therefore, the results may not be generalizable. Practical implications Coaching could be an effective approach to improve leaders’ contingent reward behavior. Originality/value This study provides more evidence that coaching can help leaders improving their behavior, particularly in relation to leader–member exchange.


2019 ◽  
Vol 3 (1) ◽  
pp. 25
Author(s):  
Dewi Nurhanifah ◽  
Desy Noor Latifah Sari ◽  
Rahmawati Rahmawati

Salah satu masalah kesehatan yang sering dialami adalah penyakit gastritis. Gejala yang sering dikeluhkan oleh penderita gastritis adalah mual. Salah satu penatalaksanaan keperawatan yang dapat mengurangi rasa mual adalah tirah baring. Penelitian ini bertujuan untuk mengetahui pengaruh tirah baring terhadap penurunan rasa mual pada klien gastritis di Pelayanan Kesehatan. Metode penelitian menggunakan eksperimental dengan bentuk penelitian one group pretest-posttest design. Populasi dan sampel adalah klien yang mengalami mual di Wilayah Kerja Puskesmas  yang berjumlah 15 orang. Sampel diambil dengan teknik purposive sampling. Alat pengumpul data menggunakan observasi. Analisa data melalui uji Wilcoxon Signed Rank Test. Hasil penelitian menujukkan klien gastritis sebelum tirah baring mengalami mual ringan sebanyak 7 orang (46,7%), sesudah tirah baring mengalami tidak mual sebanyak 7 orang (46,7%). Ada pengaruh tirah baring terhadap penurunan rasa mual pada klien gastritis di Pelayanan Kesehatan (ρ value = 0,001).


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