PSU Research Review最新文献

{"title":"Institutional characteristics, signaling variables and IPO initial returns","authors":"S. Sundarasen","doi":"10.1108/PRR-10-2016-0003","DOIUrl":"https://doi.org/10.1108/PRR-10-2016-0003","url":null,"abstract":"\u0000Purpose\u0000This paper aims to provide empirical evidence on the extent of alteration institutional characteristics, i.e. legal origin and corruption levels, may have on the signaling effects of auditors’ reputation, underwriters’ reputation and ownership retention on initial public offering (IPO) initial returns in OECD countries.\u0000\u0000\u0000Design/methodology/approach\u0000Cross-sectional data composed of 6,182 IPOs from 30 OECD countries are used for 2003-2012. Ordinary least square with multiple linear regressions is used to test the hypotheses.\u0000\u0000\u0000Findings\u0000The findings indicate that the legal framework and corruption level of a country alters the signaling effects of underwriters’ reputation, auditors’ reputation and ownership retention in an IPO environment. These three variables mitigate information asymmetry, signal firm value to potential investors and ultimately decrease IPO initial returns. This relationship is more significant in the civil law countries. Corruption levels negatively moderate the relationship in the common law and Scandinavian civil law countries but have no significance in the German and French civil law countries, indicating the importance of the signaling variables in these two civil law countries.\u0000\u0000\u0000Originality/value\u0000This study examines the extent of the alterations that the legal framework and the corruption levels cause to the signaling relationship between auditors’ reputation, underwriters’ reputation and ownership retention on IPO initial returns in selected OECD countries.\u0000","PeriodicalId":32387,"journal":{"name":"PSU Research Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83721131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Relationship between human resource management practices, ethical climates and organizational performance, the missing link","authors":"M. Sabiu, Kabiru Jinjiri Ringim, T. Mei, M. H. Joarder","doi":"10.1108/PRR-12-2016-0022","DOIUrl":"https://doi.org/10.1108/PRR-12-2016-0022","url":null,"abstract":"PurposeThe purpose of this paper is to investigate the influence of human resource management (HRM) practices, (recruitment and selection) and organizational performance (OP) through mediation role of ethical climates (ECs) in Nigerian educational agencies.Design/methodology/approachQuantitative data were collected from 181 educational agencies represented by director of administration; SmartPLS-SEM was used in testing the relationship, as well as testing the mediating effect of ECs.FindingsThe results revealed strong support for the mediating role of ECs on the relationship between HRM practice (recruitment and selection) and OP.Research limitations/implicationsPolicy makers and executives in educational agencies need to consider making appropriate decision in terms of effectively adopt and implement performance-based HRM practices that can encourage and create ethical behavior of employees’ and within organization. Through the adoption and utilization of these practices, educational agencies can enhance OP.Practical implicationsThis study contributes to the understanding of the relationship between HRM and OP by clarifying a pathway between these variables. This study also generalizes consistent findings on the HRM practices and OP relationship to a different discipline and context, i.e. educational agencies.Originality/valueThis study adds to the domain of resource-based view by incorporating EC as a mediator between HRM practices and OP.","PeriodicalId":32387,"journal":{"name":"PSU Research Review","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90256883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of uses and gratifications on social media use","authors":"Md. Alamgir Hossain","doi":"10.1108/PRR-07-2018-0023","DOIUrl":"https://doi.org/10.1108/PRR-07-2018-0023","url":null,"abstract":"\u0000Purpose\u0000Billions of people around the world are experiencing new ways of interacting with people using the social networking sites (SNS). With the heavy traffic and technological capabilities, SNS offers remarkable gratifications to its users, but there is a lack of knowledge about how gratifications play a role in usage intention and whether there are other factors that influence this relationship. Therefore, this study aims to fulfill these research gaps.\u0000\u0000\u0000Design/methodology/approach\u0000To explore these issues in depth, this study conceptualizes a comprehensive framework based on the theory of uses and gratification (UGT), habit and the subjective norm. Structural equation model is used to analyze the survey data.\u0000\u0000\u0000Findings\u0000The results of the study reveal that UGT has a significant direct effect on usage intention. Furthermore, user habit and subjective norm play an important mediating role in the relationship between UGT and usage intention.\u0000\u0000\u0000Originality/value\u0000The proposed framework would extensively contribute to the SNS literature and managerial insights by integrating personal and social factors in determining the user acceptance of the media.\u0000","PeriodicalId":32387,"journal":{"name":"PSU Research Review","volume":"120 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77424516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Teaching evaluation and student response rate","authors":"Tashfeen Ahmad","doi":"10.1108/PRR-03-2018-0008","DOIUrl":"https://doi.org/10.1108/PRR-03-2018-0008","url":null,"abstract":"\u0000Purpose\u0000The purpose of this paper is to share the author’s viewpoint on how to increase student response rate in course evaluation surveys.\u0000\u0000\u0000Design/methodology/approach\u0000The approach is to highlight measures which increased student response rate in online surveys of the author’s teaching evaluation at The University of the West Indies, Jamaica.\u0000\u0000\u0000Findings\u0000This viewpoint suggests that student response rate to course evaluation can be improved by the lecturer’s effective communication. The examples of effective communication are given in this paper.\u0000\u0000\u0000Originality/value\u0000This work will encourage the lecturers to initiate more student engagement to improve response rate of their teaching evaluation.\u0000","PeriodicalId":32387,"journal":{"name":"PSU Research Review","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90439546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"2-D periodic structures. A numerical study","authors":"G. Rocchetta, G. Mancusi","doi":"10.1108/PRR-07-2018-0021","DOIUrl":"https://doi.org/10.1108/PRR-07-2018-0021","url":null,"abstract":"\u0000Purpose\u0000Within the context of 2D square lattices, searching for the existence of band gaps assumes a great interest owing to many possible fields of application: from energy absorption devices to noise and vibration controllers, as well as advanced strategies for the seismic isolation.\u0000\u0000\u0000Design/methodology/approach\u0000The underlying microstructure may influence the mechanical response of 2D square lattices according to a complex interplay between different factors. A first one is related to the so-called “size-effect”. A second one relates, instead, to the mass density distribution.\u0000\u0000\u0000Findings\u0000It has been observed that lumped masses may induce additional band gaps to appear and may magnify their width. Finally, an additional factor deals with the inner damping characteristics of the constituent materials, which usually are polymer-based.\u0000\u0000\u0000Originality/value\u0000This study focuses on the first factor from a specific perspective: to investigate the influence of the size effect on the existence and properties of frequency band gaps.\u0000","PeriodicalId":32387,"journal":{"name":"PSU Research Review","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74109389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the 3D printing of recycled ABS, PLA and HIPS thermoplastics for structural applications","authors":"Ranvijay Kumar, Rupinder Singh, I. Farina","doi":"10.1108/PRR-07-2018-0018","DOIUrl":"https://doi.org/10.1108/PRR-07-2018-0018","url":null,"abstract":"\u0000Purpose\u0000Three-dimensional printing (3DP) is an established process to print structural parts of metals, ceramic and polymers. Further, multi-material 3DP has the potentials to be a milestone in rapid manufacturing (RM), customized design and structural applications. Being compatible as functionally graded materials in a single structural form, multi-material-based 3D printed parts can be applied in structural applications to get the benefit of modified properties.\u0000\u0000\u0000Design/methodology/approach\u0000The fused deposition modelling (FDM) is one of the established low cost 3DP techniques which can be used for printing functional/ non-functional prototypes in civil engineering applications.\u0000\u0000\u0000Findings\u0000The present study is focused on multi-material printing of primary recycled acrylonitrile butadiene styrene (ABS), polylactic acid (PLA) and high impact polystyrene (HIPS) in composite form. Thermal (glass transition temperature and heat capacity) and mechanical properties (break load, break strength, break elongation, percentage elongation at break and Young’s modulus) have been analysed to observe the behaviour of multi-material composites prepared by 3DP. This study also highlights the process parameters optimization of FDM supported with photomicrographs.\u0000\u0000\u0000Originality/value\u0000The present study is focused on multi-material printing of primary recycled ABS, PLA and HIPS in composite form.\u0000","PeriodicalId":32387,"journal":{"name":"PSU Research Review","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91127404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the mechanical response of multilayered pentamode lattices equipped with hinged and rigid nodes","authors":"A. Amendola, Ida Mascolo, G. Benzoni","doi":"10.1108/PRR-07-2018-0022","DOIUrl":"https://doi.org/10.1108/PRR-07-2018-0022","url":null,"abstract":"\u0000Purpose\u0000This paper aims to review recent literature results on the mechanical response of confined pentamode structures behaving either in the stretching-dominated or the bending-dominated regimes.\u0000\u0000\u0000Design/methodology/approach\u0000The analyzed structures consist of multilayer systems formed by pentamode lattices alternated with stiffening plates and are equipped with rigid or hinged connections.\u0000\u0000\u0000Findings\u0000It is shown that such structures are able to carry unidirectional compressive loads with sufficiently high stiffness, while showing markedly low stiffness against shear loads. In particular, their shear stiffness may approach zero in the stretching-dominated regime.\u0000\u0000\u0000Originality/value\u0000The presented results highlight the high engineering potential of laminated pentamode metamaterials as novel isolation devices to be used for the protection of buildings against shear waves.\u0000","PeriodicalId":32387,"journal":{"name":"PSU Research Review","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81642653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physical-mechanical characterization of biodegradable Mg-3Si-HA composites","authors":"C. Prakash, Sunpreet Singh, I. Farina, F. Fraternali, L. Feo","doi":"10.1108/PRR-04-2018-0013","DOIUrl":"https://doi.org/10.1108/PRR-04-2018-0013","url":null,"abstract":"\u0000Purpose\u0000Porous implant surface is shown to facilitate bone in-growth and cell attachment, improving overall osteointegration, while providing adequate mechanical integrity. Recently, biodegradable material possessing such superior properties has been the focus with an aim of revolutionizing implant’s design, material and performance. This paper aims to present a comprehensive investigation into the design and development of low elastic modulus porous biodegradable Mg-3Si-5HA composite by mechanical alloying and spark plasma sintering (MA-SPS) technique.\u0000\u0000\u0000Design/methodology/approach\u0000This paper presents a comprehensive investigation into the design and development of low elastic modulus porous biodegradable Mg-3Si-5HA composite by MA-SPS technique. As the key alloying elements, HA powders with an appropriate proportion weight 5 and 10 are mixed with the base elemental magnesium (Mg) particles to form the composites of potentially variable porosity and mechanical property. The aim is to investigate the performance of the synthesized composites of Mg-3Si together with HA in terms of mechanical integrity hardness and Young’s moduli corrosion resistance and in-vitro bioactivity.\u0000\u0000\u0000Findings\u0000Mechanical and surface characterization results indicate that alloying of Si leads to the formation of fine Mg2 Si eutectic dense structure, hence increasing hardness while reducing the ductility of the composite. On the other hand, the allying of HA in Mg-3Si matrix leads to the formation of structural porosity (5-13 per cent), thus resulting in low Young’s moduli. It is hypothesized that biocompatible phases formed within the composite enhanced the corrosion performance and bio-mechanical integrity of the composite. The degradation rate of Mg-3Si composite was reduced from 2.05 mm/year to 1.19 mm/year by the alloying of HA elements. Moreover, the fabricated composites showed an excellent bioactivity and offered a channel/interface to MG-63 cells for attachment, proliferation and differentiation.\u0000\u0000\u0000Originality/value\u0000Overall, the findings suggest that the Mg-3Si-HA composite fabricated by MA and plasma sintering may be considered as a potential biodegradable material for orthopedic application.\u0000","PeriodicalId":32387,"journal":{"name":"PSU Research Review","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91113943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the design, elastic modeling and experimental characterization of novel tensegrity units","authors":"Z. Bieniek, Ida Mascolo, A. Amendola","doi":"10.1108/PRR-07-2018-0019","DOIUrl":"https://doi.org/10.1108/PRR-07-2018-0019","url":null,"abstract":"Purpose \u0000 \u0000 \u0000 \u0000 \u0000This study aims to focus on a short review on recent results dealing with the mechanical modelling and experimental characterization of a novel class of tensegrity structures, named class θ = 1 tensegrity prisms. The examined structures exhibit six bars connected by two disjoint sets of strings. \u0000 \u0000 \u0000 \u0000 \u0000Design/methodology/approach \u0000 \u0000 \u0000 \u0000 \u0000First, the self-equilibrium problem of tensegrity θ = 1 prisms is numerically investigated for varying values of two aspect parameters and, next, their prestress stability is studied. The mechanical behavior of the examined structures in the large displacements regime under uniform compression loading is also numerically computed through a path-following procedure. Finally, the predicted constitutive response is validated through experimental tests. \u0000 \u0000 \u0000 \u0000 \u0000Findings \u0000 \u0000 \u0000 \u0000 \u0000The presented results highlight that the examined structures exhibit a large number of infinitesimal mechanisms from the freestanding configuration, and reveal that they exhibit tunable elastic response switching from stiffening to softening. \u0000 \u0000 \u0000 \u0000 \u0000Originality/value \u0000 \u0000 \u0000 \u0000 \u0000This multi-faceted elastic response is in agreement with previous literature results on the elastic response of minimal tensegrity prism, and suggests that such units can be usefully used as non-linear springs in next-generation tensegrity metamaterials.","PeriodicalId":32387,"journal":{"name":"PSU Research Review","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91039914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the statics of curved masonry structures via numerical models","authors":"V. P. Berardi, M. D. Piano","doi":"10.1108/PRR-07-2018-0020","DOIUrl":"https://doi.org/10.1108/PRR-07-2018-0020","url":null,"abstract":"PurposeThis paper aims to review recent literature results on the equilibrium problem and the strengthening design of masonry vaults.\u0000\u0000Design/methodology/approachA Lumped Stress Method (LSM) is considered within the Heyman’s safe theorem, based on the definition of thrust surface of a masonry curved structure. In particular, the static problem of the vault is formulated by introducing a membrane continuous of the studied masonry structure to associate with a spatial truss through a nonconforming variational approximation of the thrust surface and membrane stress potential. A tensegrity approach based on a minimal mass design strategy, different strengths in tension and compression of the material is discussed within the strengthening strategy of masonry vaults.\u0000\u0000FindingsThe numerical results have highlighted the efficacy of the two numerical approaches to assess the vulnerability of existing structures and design optimal strengthening interventions of these structures.\u0000\u0000Originality/valueThe presented models can represent fast and useful tools to assess the vulnerability of existing structures and design optimal strengthening interventions with composite materials of these structures.\u0000","PeriodicalId":32387,"journal":{"name":"PSU Research Review","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81743771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}