1,354,547 research outputs found
Trick and tips: le sfide della quarantena a seconda della personalità
No full textL'attuale emergenza sanitaria ha costretto molte aziende ad adottare le pratiche di lavoro a distanza, permettendo così ai dipendenti di continuare a svolgere da casa le loro attività professionali. Gli autori di questo articolo hanno pensato di sintetizzare i profili da quarantena dei lavoratori in smart working, identificando le possibili reazioni e suggerendo alcune indicazioni concrete per affrontare questo difficile momento.
La profilazione è avvenuta sulla base della tipologia psicologica elaborata dallo psichiatra svizzero Carl Gustav Jung. Jung ha identificato due atteggiamenti fondamentali del carattere (introversione ed estroversione) e quattro diverse funzioni cognitive (pensiero, sensazione, intuizione ed emozione) nella psiche, distinguendo così otto differenti tipi di personalità.
A partire da questo presupposto, e facendo riferimento anche al contributo teorico di Marie-Louise von Franz, abbiamo riassunto in otto modelli le tipologie di lavoratori in smart working.
Siamo consapevoli che questo lavoro non vanta di un metodo aziendale specifico. Volontariamente abbiamo preferito mantenere un tono informale e non scientifico, convinti che l'argomento fosse suscettibile ad essere considerato in termini meno severi e rigorosi rispetto a come sono svolte di solito queste ricerche.
Speriamo possa risultare comunque utile. E in ogni caso – bisogna dirlo – ci siamo divertiti a svolgerlo
Maintaining Manafi’ ( Benefits )
No full text تعدُّ المنافع من أوسع ما تدور عليه مصالح العباد، وقد واكبت الشريعة الإسلامية ذلك، وبيّنت أحكاماً شرعية لذلك، كما يعدّ تعريف المال وما ينسحب عليه هذا التعريف من دلالات عمق الشريعة، وسعتها، وهذا البحث يكشف عن مفهوم المنافع وأحكامها، ويظهر الأحكام بالأدلة على ما طرأ على المنافع من تطورات في عصرنا الحاضر.The concept of Manafi’ ( benefits ) has long been a major component of peoples’ life so that the Shari’a has accounted for it thoroughly from an Islamic point of view. This research therefore profoundly illuminates this concept in Islam in terms of providing proofs and answers that pertain to current polemic issues
Soil plasticity determination using manafi method and apparatus
No full textDetermination of soil plasticity is of great importance in geotechnical engineering projects. Consistency of soil can be expressed in terms of Atterberg limits of soils. Liquid limit and plastic limit tests are among the two most regular tests for determination of index properties of fine grain soils. Soil classification of fine grain soils is based on results of Atterberg limit tests. In addition, many engineering properties of soils can be correlated to the results of soil plasticity determination tests. Current standard methods for determination of soil plasticity have several issues that make their results unreliable in many cases. In this research, it is tried to address problems of conventional methods regarding soil plasticity determination, design a new apparatus for determination of liquid limit and plastic limit of soils, and standardise a new test method for determination of soil plasticity with more accuracy and reliability in comparison to conventional methods. Soil consistency is a qualitative phenomenon. In this regard, author?s suggestion for solving the problems related to the determination of soil plasticity is utilisation of qualitative research approach. Accordingly, the author has proposed a new test method and designed a new apparatus (Manafi Apparatus) for determination of soil consistency based on the nature of soil deformation utilising qualitative research approach, referred to as Manafi Method. In this technique, it is possible to determine the workability of soil at Atterberg limits and specify the consistency state of the soil. Ten different soils were selected carefully to cover a wide range of soils plasticity with plastic limits range from 18.64% to 30.78%, and the liquid limits range from 30.25% to 61.77%. The most differences between the results obtained by proposed method and standard methods were 2.38% and 1.94% of water content for liquid and plastic limits correspondingly. The experimental results obtained by designed apparatus confirmed the proposed method and provided more consistent results in soil plasticity determination in comparison to current standard methods (fall cone and thread rolling methods)
Morphology and electrochemical properties of a gel blend polymer electrolyte based on PVDF-HFP/PEO blend
No full textHypothesis: In recent years, gel polymer electrolytes (quasi-solid state electrolytes) have attracted great attention as a suitable substitute for liquid electrolytes. On the other hand, ionic liquids could dramatically enhance the ionic conductivity of electrolytes. In this work, gel polymer electrolytes based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)/poly(ethylene oxide) (PEO) blends (for application in dye-sensitized solar cells (DSSCs)) and imidazoliumbased ionic liquids were prepared. It is supposed that blending these two polymers could reduce the degree of crystallization and increase the porosity of the electrolyte blend to yield a higher electrolyte uptake and ionic conductivity. Methods: Polymer blend electrolytes were prepared in different blend ratios and in the presence of either one of the ionic liquids including BMII or BMIMBF4 through phase inversion method and their properties were investigated by differential scanning calorimetry (DSC), mercury porosimetry, electrolyte uptake, and morphology to optimize the blend ratio. Findings: It was found that the blend ratio of 60/40 (w/w) PVDF-HFP/PEO has the highest porosity and electrolyte uptake. Crystallization investigations by DSC showed that there is a direct relationship between the decrease of crystallinity of two polymers and the increment of electrolyte ionic conductivity. Electrolyte uptake gradually increased with increasing PEO component concentration up to 40 wt%, and reached a maximum of 98.49% and 89.48% for BMIMBF4 and BMII, respectively. Beyond this concentration, a decrease in electrolyte uptake was seen, which is an undesirable feature for the produced samples. In this blend ratio ionic conductivity was measured as 2.07 mS/cm and 1.78 mS/cm for PVDF-HFP/PEO/BMIMBF4 and PVDF-HFP/ PEO/BMII electrolytes, respectively
Gestione del personale 4.0: competenze e algoritmi nell’impresa digitale
No full textL’avvento della quarta rivoluzione industriale ha portato ad una trasformazione radicale dei processi di business, delle forme organizzative, della qualità̀ del lavoro e delle condizioni lavorative. Diversi studi hanno documentato che l'aumento del numero di fonti di informazione disponibili e la relativa quantità̀ di dati prodotti, insieme alla crescente disponibilità̀ e potenza delle tecnologie di archiviazione e elaborazione delle informazioni, ha reso consapevoli le aziende di quanto l’automazione e i big data possano rappresentare una fonte di vantaggio competitivo e uno strumento di evoluzione dello stesso modello di business. Il cambiamento tecnico determinato dalla digitalizzazione e da altri processi connessi ad essa colpisce la componente umana, su cui si concentra il progetto di ricerca.
Lo studio si propone pertanto di valutare gli effetti della rivoluzione industriale sul mercato del lavoro e sulla gestione della forza lavoro, indagando come la trasformazione digitale impatta sull’evoluzione delle competenze ed esplorando gli ambiti e gli effetti della trasformazione della gestione delle risorse umane in senso data-driven.
Pertanto questo studio si rivolge e intende essere utile ad accademici, per i risultati delle analisi empiriche, ai professionisti delle risorse umane, per gli scenari e le applicazioni di data-driven HRM, alle istituzioni e ai policy maker nella comprensione e gestione dei cambiamenti delle professioni e delle competenze in un contesto di rapido cambiamento tecnologico.The rise of the fourth industrial revolution has led to a radical transformation of business processes, organizational forms, quality of work and working conditions. Several studies have documented that the increase in the number of information sources available and the relative amount of data produced, together with the increasing availability and power of information storage and processing technologies, has made companies aware of how much automation and big data can represent a source of competitive advantage and a tool for the evolution of the business model itself. The technical change brought about by digitalization and other related processes affects the human component, on which the research project focuses.
The study therefore aims to evaluate the effects of the digital transformation on the labor market and on the management of the workforce, investigating how digital transformation impacts the evolution of skills and exploring the areas and effects of the data-driven turn in human resources management.
Therefore, this study is aimed at and intends to be useful to academics, for the results of empirical analyzes, to human resources professionals, for data-driven HRM scenarios and applications, to institutions and policy makers in understanding and managing changes in professions and skills in a context of rapid technological change
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
A study on the microstructural development of gel polymer electrolytes and different imidazolium-based ionic liquids for dye-sensitized solar cells
No full textQuasi-solid state electrolyte (gel-like) based on polymer matrix PVDF-HFP/PEO is considered as a suitable candidate for producing DSSC due to its essential influence on the performance of the device. In this work, PVDF-HFP/PEO membranes were prepared over the whole composition range in presence of either one of the ionic liquids (ILs) including BMII plus LiI, or BMIMBF4 via phase inversion and compared with liquid electrolyte and ILs individually. It was found that the blend ratio affected some of the membrane properties, such as porosity, pore size, pore connectivity, liquid uptake ability, and morphology. SEM analysis and mercury porosimetry were used to study the pore configuration and porosity of the membranes. The effects of two semicrystalline polymers on the morphology and crystallinity of the membrane were examined by DSC and also WAXD. It was found that there is a direct relationship between the crystallinity reduction and improvement of ionic conductivity of the samples. The photovoltaic performances of the fabricated DSSC at the highest ionic conductive optimized membrane revealed an improvement of Voc, Jsc, fill factor, and the solar conversion efficiency of 6.47%. The long-term durability of the quasi solid DSSC was increased compared to a liquid type electrolyte
Determination of Soil Plasticity Developing Manafi Method and Apparatus
No full textSoil plasticity is one of the essential index properties required for classifying soils in geotechnical engineering practice. Determination of plasticity properties of soils is also critical for correlation with their engineering properties such as shear strength, permeability, and compressibility. However, present standard test methods for soil plasticity suffer, to different extents, from operator-dependency and inconsistency. This research aims to further develop and establish a recently introduced determination method, named the Manafi Method and Apparatus in the author's MPhil project, and obtain more precise and accurate soil plasticity determinations than from the current standard methods. This thesis by publication document presents the research outcomes. The document comprises six chapters. Except Chapters 1 and 6, Chapters 2 to 4 were written in the format of research articles. These articles have been published, accepted for publication, or submitted to journals for possible publications by the time of thesis lodgement. The Introduction chapter presents the aims and objectives of the research project and outlines the thesis structure. Chapter 2, entitled “A New Approach to Soil Consistency Determination”, presents research outcomes related to theory and implementation of the new testing approach. The contents reviewed and discussed the conventional quantitative methodology for soil consistency determination using standard tests. It also proposed a novel combined qualitative and quantitative research methodology for a behavioural study on soil consistency determination. A new parameter, called ‘workability’, was introduced and formulated for quantifying soil consistency. This study lays the theoretical basis for developing the novel methodology and proposed solutions to issues related to standard tests. Chapter 3, entitled “Utilisation of Extrusion Method in Geotechnical Tests: Conception and Theoretical Analysis”, evaluates the capability of the extrusion method for soil property determinations and proposes the development of a closed-form solution for the determination of extrusion pressure using this technique. This study presents the theoretical basis underpinning the extrusion process by extending the conventional slab analysis method to the modelling of soil extruding. In addition, the described extrusion mechanics explained reasons for some discrepancies observed in various geotechnical parameters due to the different soil deformation mechanisms among the test methods. Chapter 4 presents the third paper, entitled “Determining Soil Plasticity Utilising Manafi Method and Apparatus”. This paper demonstrates the utilisation of the new combined qualitative and quantitative approach for soil property determinations, namely the Manafi Method and Apparatus. The proposed technique is instrumented with a new soil extrusion device to quantify the workability of soils and is calibrated to translate the workability to their liquid and plastic limits. The method is applied to seven soil samples of varying particle sizes and plasticity to determine the liquid and plastic limits, and the results are compared with those obtained by conventional methods. The outcomes suggest that the new technique provides a more precise and reliable means of soil plasticity determination in the tested samples. Chapter 5 is the fourth paper, entitled “Effect of Particle Size on Soil Plasticity and Soil Classification”. Although the full range of particle sizes affects soil consistency, the conventional test methods and apparatuses only study the unrepresentative sub-samples containing medium sand particles of less than 425 microns. However, the novel Manafi Method and Apparatus can enhance the consistency determination method by exploring a more comprehensive range of soils containing coarser particles. Therefore, several soil samples containing various portions of coarse grains are studied. The results show that the coarse grains significantly affect soil plasticity and classification. As a result, a revision to the Unified Soil Classification System is proposed. Chapter 6, “Conclusions and Recommendations”, summarises the research results, discusses the limitations of the study, and recommends future investigations pertinent to soil plasticity determination. The articles presented in the thesis were prepared in collaboration with two more international experts in the research field, Professor Mark B. Jaksa and Professor Nagaraj HB, forming a high standard authorship team. In addition, the research seeks to demonstrate a well-defined paradigm in favour of using the proposed method in broader soil property determinations.Thesis (Ph.D.) -- University of Adelaide, School of Chemical Engineering and Advanced Materials, 202
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