scholarly journals A multi-analytical approach for the characterisation of the oldest pictorial cycle in the 12th century monastery Santa Maria delle Cerrate

2013 ◽  
Vol 1 (1) ◽  
pp. 12 ◽  
Author(s):  
Giuseppe E. De Benedetto ◽  
Amedeo Savino ◽  
Daniela Fico ◽  
Daniela Rizzo ◽  
Antonio Pennetta ◽  
...  
Keyword(s):  
Analytical Approach ◽  
Point Of View ◽  
Inorganic Materials ◽  
Multidisciplinary Research ◽  
South Italy ◽  
Material Characterisation ◽  
12Th Century ◽  
Materials Used ◽  
The University ◽  
Santa Maria

A multidisciplinary research, currently in progress at the University of Salento in collaboration with the Lecce Provincial Museum, interests different artistic expressions widespread in the Salento peninsula (South Italy). In the present study, the characterisation of organic and inorganic materials used in the oldest pictorial cycle found in the 12th century monastery Santa Maria delle Cerrate was carried out thanks to a multi-analytical approach. Previous investigations have focused on the problem of dating the frescoes mainly on the basis of the stylistic aspects and the material characterisation has been definitely underinvestigated. Chromatographic and spectrometric techniques were used: micro-Raman spectroscopy was used for recognising pigments and gas chromatography with mass spectrometric detection for analysing organic binders. These techniques enabled us to characterise pigments and binders. The presence of both true fresco and tempera bound pigments was assessed. Among the different pigments detected, the results relevant to the blue paints were interesting: two different blue pigments were, indeed, identified, lapis lazuli and smalt (cobalt blue glass) both unexpected. As a result, Santa Maria delle Cerrate appears to be the first known example of their use in South Italy. From a conservation point of view, moreover, the knowledge of the palette permitted to highlight the reason of observed decay of some paints: for instance, lead white was used in some panels, explaining their blackening.

scholarly journals Reasons for brain drain from the point of view of faculty members at the University of Jordan: أسباب هجرة العقول من وجهة نظر أعضاء الهيئة التدريسية في الجامعة الأردنية

2019 ◽  
Vol 3 (30) ◽  
Author(s):  
Maen Hamdan Slamah Al- Zboun
Keyword(s):  
Brain Drain ◽  
Analytical Approach ◽  
Arab World ◽  
Statistical Processing ◽  
Point Of View ◽  
Faculty Members ◽  
University Of Jordan ◽  
The University ◽  
Social Causes ◽  
The Brain

  The study aimed to know the reasons for the brain drain from the viewpoint of the faculty members at the University of Jordan and to achieve the goals of the study the researcher used the descriptive analytical approach, and the tool was represented in a questionnaire distributed to a random sample of faculty members at the University of Jordan, the number of (100) faculty members , And the SPSS program was used in statistical processing. The results of the study revealed that the overall tool obtained; the causes of brain drain on average (3.82 out of 5) with a verbal (large) estimate and at the level of fields; the field of economic reasons obtained the highest average (4.14) followed by the field of social causes with an average (3.69) and both with a verbal (large) And, thirdly, the field of political causes, with an average of (3.64), with a verbal estimate (average), There were statistically significant differences at the level of (α≤0.05) between the averages of the sample responses attributable to the variable of the college specialization, and for the benefit of the scientific colleges. Aim which enables rare minds to find their specialties within the Arab world.    

scholarly journals Education and the Challenges of Globalization during the Corona Pandemic: A Field Study from Baghdad University Professors’ Point of View

2021 ◽  
Vol 32 (2) ◽  
pp. 100-113
Author(s):  
Mayssam Yassin Obaid
Keyword(s):  
Analytical Approach ◽  
Violent Behavior ◽  
Modern Technology ◽  
Educational Process ◽  
Point Of View ◽  
Colleges Of Education ◽  
University Professors ◽  
Arts And Sciences ◽  
The University

study aims to examine education and the challenges of globalization in light of Corona pandemic. The examination involves surveying a randomly selected sample from the University of Baghdad’s professors, particularly from the colleges of Education for Women, Arts, and Sciences. The purpose of this examination is to learn about the dimensions of globalization, its effects on the educational process, and the importance of distance education during the spread of Corona virus quarantine. To achieve this, the researcher followed a descriptive and analytical approach by applying a questionnaire to a sample of 70 teachers who were randomly selected electronically. Results have shown that 78.6% emphasized the contribution of globalization during Corona pandemic to develop teachers’ ability to employ modern technology and informatics. Besides, 65.7% pinpointed the role of globalization in activating the dialogue between teachers and learners during the discontinuation of the traditional means of teaching. This further allowed for continuity and non-stop education. Besides, there are differences between the effects of globalization and the learning of violent behavior for students attributed to gender and for the benefit of males. In addition, there are no statistically significant differences between globalization and academic achievement of students during corona pandemic at the freedom degree (1) and level of significant (0.05). Accordingly, the study recommended the need to review the educational system and reformulate its goals, objectives, goals and curricula in light of the globalization of knowledge that has become a reality. This can only be achieved by developing the capabilities of the teachers and the learners to face the challenges of globalization and get adapted to them.

scholarly journals An Enhanced GC/MS Procedure for the Identification of Proteins in Paint Microsamples

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
D. Fico ◽  
E. Margapoti ◽  
A. Pennetta ◽  
G. E. De Benedetto
Keyword(s):  
Chemical Characterization ◽  
Binding Medium ◽  
Secondary Products ◽  
Works Of Art ◽  
12Th Century ◽  
Materials Used ◽  
Characterization Of Materials ◽  
Artistic Heritage ◽  
Santa Maria

The chemical characterization of materials used in works of art is extremely useful for gaining a better knowledge of the artistic heritage and to guarantee its preservation. A derivatization GC/MS procedure for the identification of proteins in a microsample from painted works of art has been optimized. The amino acid fraction is derivatized using anhydrous dimethylformamide (DMF) as solvent instead of pyridine (Py), commonly used to facilitate the reaction. Although pyridine is often considered a silylation catalyst, there are many instances in which silylation reactions actually are slower in pyridine than other solvents. In addition, pyridine also may have other undesirable effects such as the promotion of secondary products and other chromatographic anomalies. Using DMF, the formation of artifacts is limited and the derivatization yield of hydrophilic amino acids such as proline and hydroxyproline has improved, thus making the identification of organic paint media more straightforward. The method has been validated and successfully applied to identify the binder of the sample taken from the pictorial cycle of the 12th century monastery of Santa Maria delle Cerrate (Lecce, Italy), thus highlighting the use of eggs as a binding medium.

Environmental cell studies of deformation and fracture

1990 ◽  
Vol 48 (4) ◽  
pp. 516-517
Author(s):  
H. K. Birnbaum ◽  
I. M. Robertson
Keyword(s):  
National Laboratory ◽  
Argonne National Laboratory ◽  
Damage Threshold ◽  
Chromatic Aberration ◽  
Good Choice ◽  
Point Of View ◽  
Deformation And Fracture ◽  
Environmental Cell ◽  
Gas Molecules ◽  
The University

Studies of the effects of hydrogen environments on the deformation and fracture of fcc, bcc and hep metals and alloys have been carried out in a TEM environmental cell. The initial experiments were performed in the environmental cell of the HVEM facility at Argonne National Laboratory. More recently, a dedicated environmental cell facility has been constructed at the University of Illinois using a JEOL 4000EX and has been used for these studies. In the present paper we will describe the general design features of the JEOL environmental cell and some of the observations we have made on hydrogen effects on deformation and fracture.The JEOL environmental cell is designed to operate at 400 keV and below; in part because of the available accelerating voltage of the microscope and in part because the damage threshold of most materials is below 400 keV. The gas pressure at which chromatic aberration due to electron scattering from the gas molecules becomes excessive does not increase rapidly with with accelerating voltage making 400 keV a good choice from that point of view as well. A series of apertures were placed above and below the cell to control the pressures in various parts of the column.

A Futures Study on the Quality Of Life from the Point Of View of Iranian Youth

2017 ◽  
Vol 14 (2) ◽  
pp. 1
Author(s):  
Sina Saeedy ◽  
Mojtaba Amiri ◽  
Mohammad Mahdi Zolfagharzadeh ◽  
Mohammad Rahim Eyvazi
Keyword(s):  
Quality Of Life ◽  
Life Satisfaction ◽  
Mixed Model ◽  
Satisfaction With Life ◽  
Point Of View ◽  
Human Society ◽  
Futures Studies ◽  
The Social ◽  
The University

Quality of life and satisfaction with life as tightly interconnected concepts have become of much importance in the urbanism era. No doubt, it is one of the most important goals of every human society to enhance a citizen’s quality of life and to increase their satisfaction with life. However, there are many signs which demonstrate the low level of life satisfaction of Iranian citizens especially among the youth. Thus, considering the temporal concept of life satisfaction, this research aims to make a futures study in this field. Therefore, using a mixed model and employing research methods from futures studies, life satisfaction among the students of the University of Tehran were measured and their views on this subject investigated. Both quantitative and qualitative data were analysed together in order to test the hypotheses and to address the research questions on the youth discontentment with quality of life. Findings showed that the level of life satisfaction among students is relatively low and their image of the future is not positive and not optimistic. These views were elicited and discussed in the social, economic, political, environmental and technological perspectives. Keywords:  futures studies, quality of life, satisfaction with life, youth

Current Highlights About the Safety of Inorganic Nanomaterials in Healthcare

2019 ◽  
Vol 26 (12) ◽  
pp. 2147-2165 ◽  
Author(s):  
Luana Perioli ◽  
Cinzia Pagano ◽  
Maria Rachele Ceccarini
Keyword(s):  
Zinc Oxide ◽  
Inorganic Material ◽  
Small Dimension ◽  
Inorganic Materials ◽  
Intracellular Space ◽  
Increased Risk ◽  
Inorganic Nanomaterials ◽  
Materials Used ◽  
Health Field ◽  
Fundamental Requirement

: In recent years inorganic materials are largely present in products intended for health care. Literature gives many examples of inorganic materials used in many healthcare products, mainly in pharmaceutical field. : Silver, zinc oxide, titanium oxide, iron oxide, gold, mesoporous silica, hydrotalcite-like compound and nanoclays are the most common inorganic materials used in nanosized form for different applications in the health field. Generally, these materials are employed to realize formulations for systemic use, often with the aim to perform a specific targeting to the pathological site. The nanometric dimensions are often preferred to obtain the cellular internalization when the target is localized in the intracellular space. : Some materials are frequently used in topical formulations as rheological agents, adsorbents, mattifying agents, physical sunscreen (e.g. zinc oxide, titanium dioxide), and others. : Recent studies highlighted that the use of nanosized inorganic materials can represent a risk for health. The very small dimension (nanometric) until a few years ago represented a fundamental requirement; however, it is currently held responsible for the inorganic material toxicity. This aspect is very important to be considered as actually numerous inorganic materials can be found in many products available in the market, often dedicated to infants and children. These materials are used without taking into account their dimensional properties with increased risk for the user/patient. : This review deals with a deep analysis of current researches documenting the toxicity of nanometric inorganic materials especially those largely used in products available in the market.

scholarly journals Spirals of Sustainable Academic Motivation, Creativity, and Trust of Higher Education Staff

2021 ◽  
Vol 13 (13) ◽  
pp. 7057
Author(s):  
Martina Blašková ◽  
Dominika Tumová ◽  
Rudolf Blaško ◽  
Justyna Majchrzak-Lepczyk
Keyword(s):  
Higher Education ◽  
Academic Motivation ◽  
Slovak Republic ◽  
Point Of View ◽  
Scientific Management ◽  
Administrative Staff ◽  
Sustainable Systems ◽  
New Concepts ◽  
Future Improvement ◽  
The University

Sustainability has to penetrate more and more into higher education. It should not focus only on traditional elements. It should also enter new, but for future improvement, extremely important areas. Based on this premise, creativity and motivation, when additionally interconnected and supported by trust that is provided and achieved, decide on the progress and sustainability of universities. This connection is gaining importance especially from the point of view of building solid foundations and mechanisms that functionally preserve the potential effects of these elements in the future. For this reason and following the nature, importance, and content of sustainable academic motivation (SAM), the paper introduces two new concepts: sustainable academic creativity (SAC) and sustainable academic trust (SAT). For further original contributions, the paper hypothesizes the existence of mutual—spiral—relations of sustainable academic motivation (SAM), sustainable academic creativity (SAC), and sustainable academic trust (SAT). The empirical section tests the validity of this claim in the universities of two countries: the Slovak Republic and Poland. A survey performed on a sample of n=181 pedagogical, scientific, management, and administrative staff in higher education confirms the existence of these spirals. The results indicate the spiral effect of motivation when connected with creativity and trust and show that it is accented by the crucial principles of sustainability (responsibility, novelty, usefulness, progress, etc.). Therefore, the paper’s conclusion contains the explanations for the potential occurrence of three types of sustainably mutual systems and complexes. These are: (a) individual sustainable systems of SAM, SAC, and SAT; (b) group/sectional sustainable systems of SAM, SAC, and SAT; and (c) the global sustainable complex of SAM, SAC, and SAT in the university.

scholarly journals ResUHUrge: A Low Cost and Fully Functional Ventilator Indicated for Application in COVID-19 Patients

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6774
Author(s):  
Francisco José Vivas Fernández ◽  
José Sánchez Segovia ◽  
Ismael Martel Bravo ◽  
Carlos García Ramos ◽  
Daniel Ruiz Castilla ◽  
...  
Keyword(s):  
Low Cost ◽  
Pulmonary Ventilation ◽  
Lung Infection ◽  
Health Condition ◽  
Multidisciplinary Research ◽  
Global North ◽  
Severity Of The Disease ◽  
Open Source Hardware ◽  
The University

Although the cure for the SARS-CoV-2 virus (COVID-19) will come in the form of pharmaceutical solutions and/or a vaccine, one of the only ways to face it at present is to guarantee the best quality of health for patients, so that they can overcome the disease on their own. Therefore, and considering that COVID-19 generally causes damage to the respiratory system (in the form of lung infection), it is essential to ensure the best pulmonary ventilation for the patient. However, depending on the severity of the disease and the health condition of the patient, the situation can become critical when the patient has respiratory distress or becomes unable to breathe on his/her own. In that case, the ventilator becomes the lifeline of the patient. This device must keep patients stable until, on their own or with the help of medications, they manage to overcome the lung infection. However, with thousands or hundreds of thousands of infected patients, no country has enough ventilators. If this situation has become critical in the Global North, it has turned disastrous in developing countries, where ventilators are even more scarce. This article shows the race against time of a multidisciplinary research team at the University of Huelva, UHU, southwest of Spain, to develop an inexpensive, multifunctional, and easy-to-manufacture ventilator, which has been named ResUHUrge. The device meets all medical requirements and is developed with open-source hardware and software.

Technical services and user service improvement

2006 ◽  
Vol 27 (6/7) ◽  
pp. 505-514 ◽  
Author(s):  
Jie Huang ◽  
Katherine Wong
Keyword(s):  
Point Of View ◽  
Service Improvement ◽  
Key Factors ◽  
Content Type ◽  
University Of Oklahoma ◽  
Online Catalog ◽  
Efficient Processing ◽  
The University ◽  
Technical Services

PurposeFrom the cataloging librarians' point of view, this paper aims to present how technical services, especially the cataloging department, can play important roles in the improvement of user services.Design/methodology/approachThe paper examines the practices of the University of Oklahoma Libraries.FindingsThe paper identifies several aspects in which technical services can enhance the quality of user services, especially in the cataloging department. A library's online catalog becomes the first point of access to the library's information resources. Its quality can be improved and enriched in many ways to raise users’ satisfaction. Aside from the improvement in technical aspects, efforts should also be made to promote collaboration between technical and public services so as to ensure efficient processing of materials and to meet the needs of library users.Originality/valueThe value of the paper is in showing that the quality of an online catalog and the cooperation between public and technical services are two of the key factors in achieving high quality of user services.

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