38 research outputs found
Influence of boron on liquid metal embrittlement in 3rd generation advanced high strength steels
No full textAuthor Elahe AkbariAngefertigt am Christian Doppler Labor für Nanoskalige PhasenumwandlungenDissertation Johannes Kepler Universität Linz 2025Arbeit gesperr
The Framework of Urban Landscape Reading from Walter Benjamin’s View
No full textThis paper analyzes Walter Benjamin’s views to provide a useful framework and methodology for reading urban landscapes located at the interdisciplinary cross of environmental sciences, aesthetics, sociology, and cultural geography. Benjamin views the city as a place that offers a different modern experience, and the city and urban places are read both as a sign and a small world of their community. The relationship between history, the experience of presence, memory, and built environment is the basis of such a framework of reading urban landscapes, in which the present and the past time in a system together could narrate the urban experience every moment. In such a view, describing the modern experience is not essential, but rather how this experience can be fulfilled. Kerangka Penafsiran Lansekap Perkotaan Berdasarkan Pemikiran Walter Benjamin. Makalah ini menganalisis pemikiran Walter Benjamin untuk memberikan kerangka pemikiran dan metodologi yang berguna untuk menafsirkan lanskap perkotaan yang terletak di lintas disiplin ilmu lingkungan, estetika, sosiologi, dan geografi budaya. Benjamin memandang kota sebagai tempat yang menawarkan pengalaman modern yang berbeda, dan kota serta tempat-tempat di perkotaan diinterpretasikan sebagai tanda dan dunia kecil komunitas mereka. Hubungan antara sejarah, pengalaman kehadiran, ingatan, dan lingkungan yang dibangun merupakan dasar dari kerangka interpretasi lanskap perkotaan, di mana masa kini dan masa lalu berada dalam suatu sistem, yang secara bersama-sama dapat menceritakan pengalaman perkotaan di setiap saat. Dalam pandangan seperti itu, mendeskripsikan pengalaman modern bukanlah hal yang penting, melainkan bagaimana pengalaman tersebut dapat terpenuhi
Assessing the Different Dimensions of the Portal Quality of Provinces of Public Libraries Based on the Delone and McLean Intelligence Success Model
No full textMethod: The purpose of this research is applied research and based on the method of data collection, there is a descriptive (non-experimental) survey. The main tool for collecting data is the check list. The reliability of the check list was 0.854 by Cronbach\u27s alpha, which indicates the reliability of the check list and the validity of the check list was confirmed through content validity and structural validity. The statistical population consists of 31 provincial portals affiliated with public libraries. RESULTS: The results of the research indicate that the quality of the system of the portal of public libraries has been lower than expected and the quality of the information portal of the public libraries institution has been higher than expected and also the quality of the public libraries portal services has been lower than expected.
Conclusion: What is called the public libraries portal is a website and, of course, these news websites are very up-to-date and active in the field of news. And somehow they can be called news websites. Of course, according to the research findings of some provinces (such as East Azarbaijan province and Ardebil), they can be used as a template by providing scientific and educational materials and applying attractive design
Lack of Association between the MEF2A Gene and Coronary Artery Disease in Iranian Families
No full textObjective(s): Coronary artery disease (CAD) which may lead to myocardial infarction (MI) is a complex one. Great effort has been devoted to identification of genes that increase susceptibility to CAD or provide protection. A 21-bp deletion in the MEF2A gene, which encodes a member of the myocyte enhancer factor 2 family of transcription factors, has been reported in patients of a single pedigree that exhibited autosomal-dominant inheritance of CAD. Subsequent analysis of genetic variants within the gene in CAD and MI case-control settings produced inconsistent results. Here, we aimed at assessing the contribution of MEF2A to CAD in a cohort of Iranian CAD patients.
Materials and Methods:Exon 11 of MEF2A wherein the above mentioned 21-bp deletion and a polyglutamine (CAG)n polymorphism are positioned was sequenced by the dideoxy-nucleotide termination protocol. In 52 CAD patients from 12 families (3-7 affected members per family) and 76 Iranian control individuals. All exons of the gene were sequenced in 10 patients and 10 controls.
Results:The 21-bp deletion was observed neither among the patients nor the control individuals. Four alleles of the polyglutamine (CAG)n polymorphism were found, but there were no significant differences in allelic frequencies between patients and controls. Sequencing of all exons of MEF2A revealed the presence of 12 novel sequence variations in introns and flanking regions of MEF2A gene, not associated with disease status.
Conclusion: Our data do not support a role for MEF2A in coronary artery disease in the Iranian patients studie
Acceptance of Information and Communication Technology and Its Related Factors among Older Adults: A Cross-Sectional Study in Iran
No full textIntroduction: Given the increasing elderly population and the decreasing role of families in elderly care, the use of up-to-date technologies by older adults will become increasingly important in helping them live healthier and better lives. This study aimed to determine the acceptance of information and communication technology (ICT) by older adults and related factors in Yazd city, Iran.
Methods: This cross-sectional study was conducted in 2022 with the participation of 360 older adults aged over 60 years from comprehensive health care centers in Yazd city, Iran. Participants were selected using a multi-stage random sampling method. Data were collected using a demographic information questionnaire and an Information and Communication Technology Acceptance Questionnaire completed by interview. Data were analyzed using descriptive indices, independent two-sample t-tests, one-way analysis of variance, and regression by SPSS.
Results: The ICT acceptance rate among older adults was 22.5%. The highest mean score was related to the dimension of perceived usefulness (15.37). The most significant barriers to ICT acceptance were lack of interest (48.6%), lack of sufficient skills (46.4%), and lack of perceived need (45.3%). The regression results showed that age, level of education, smartphone use, and time spent on technology tools were predictors of ICT acceptance by older adults, accounting for 82% of the variance in ICT acceptance.
Conclusion: Given the low level of technology acceptance among older adults in Yazd city and the need to learn and use ICT to meet their individual, social, health, and medical needs, as well as to live a more independent life and save time and costs, providing older adults with the opportunity to become familiar with technology is essential.
Corresponding Author: Elahe Dehghanbanadaki
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Correction to: Fluorescence detection of laccases activity by the photoinduced electron transfer (PET) process (JBIC Journal of Biological Inorganic Chemistry, (2020), 25, 1, (151-159), 10.1007/s00775-019-01748-0)
No full textThe original article can be found online.In the original article published, the affiliation of the author Elahe Ahmadi is incorrect. The correct affiliation is �Department of Chemistry, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran�. © 2020, Society for Biological Inorganic Chemistry (SBIC)
Examination of SAVE marketing mix situation in public libraries of Tehran
No full textThe present study was conducted to determine the rate of usage of SAVE marketing mix components in public libraries of Tehran.The research method is descriptive survey. The statistical population of the study consisted of 33 libraries of public libraries affiliated with the public libraries of Tehran city which have been studied by census method.In order to analyze the data, SPSS software descriptive statistics (frequency distribution, relative percentage, mean and standard deviation) and inferential (t singlesample) was used. The findings of the study showed that the general libraries of Tehran were weak in terms of all components of the SAVE marketing mix.Also, it was revealed that the public libraries of Tehran city are not in the same position in terms of the application of SAVE marketing mix components, so that the components of solution and training with averages less than optimal (3) equal to (2.93 and 2.85) respectively had the least rate of usage, and the components of access and value with averages greater than the optimal (3) equal to (3.65 and 3.18), respectively, had the most rate of usage
Maize brace root mechanics vary by whorl, genotype, and reproductive stage
No full textThis is a pre-copyedited, author-produced version of an article accepted for publication in
Annals of Botany following peer review. The version of record Ashley N Hostetler, Lindsay Erndwein, Elahe Ganji, Jonathan W Reneau, Megan L Killian, Erin E Sparks, Maize brace root mechanics vary by whorl, genotype, and reproductive stage, Annals of Botany, 2022;, mcac029, https://doi.org/10.1093/aob/mcac029 is available online at: https://doi.org/10.1093/aob/mcac029. This article will be embargoed until 03/03/2023.Background and Aims: Root lodging is responsible for significant crop losses world-wide. During root lodging, roots fail by breaking, buckling, or pulling out of the ground. In maize, above-ground roots, called brace roots, have been shown to reduce root lodging susceptibility. However, the underlying structural-functional properties of brace roots that prevent root lodging are poorly defined. In this study, we quantified structural mechanical properties, geometry, and bending moduli for brace roots from different whorls, genotypes, and reproductive stages.
Methods: Using 3-point bend tests, we show that brace root mechanics are variable by whorl, genotype, and reproductive stage.
Key Results: Generally, we find that within each genotype and reproductive stage, the brace roots from the first whorl (closest to the ground) had higher structural mechanical properties and a lower bending modulus than brace roots from the second whorl. There was additional variation between genotypes and reproductive stages. Specifically, genotypes with higher structural mechanical properties also had a higher bending modulus, and senesced brace roots had lower structural mechanical properties than hydrated brace roots.
Conclusions: Collectively these results highlight the importance of considering whorl-of-origin, genotype, and reproductive stage for quantification of brace root mechanics, which is important for mitigating crop loss due to root mechanical failure.This research was made possible by funding from the University of Delaware Research Foundation and the Thomas Jefferson Fund to EES
Rational ellipticity of G-manifolds from their quotients
No full textWe prove that if a compact, simply connected Riemannian G-manifold M has orbit space M/G isometric to some other quotient N/H with N having zero topological entropy, then M is rationally elliptic. This result, which generalizes most conditions on rational ellipticity, is a particular case of a more general result involving manifold submetries. © The Author(s), 2025
H-index and research evaluation: A suggested set of components for developing a comprehensive author-level index
No full textThe H-index has been investigated in various studies; this index has many strengths that have made it popular. However, it also has weaknesses, due to which other indicators have been developed. This study aims to identify the strengths and weaknesses of the H-index and provide the minimum set of necessary components for developing a comprehensive author-level index. In this systematic literature review, Scopus, PubMed, Web of Science, Emerald, and ProQuest databases were searched to identify relevant studies. From the number of 14,253 retrieved studies, after two stages of screening, 81 studies were selected according to the eligibility criteria for data extraction. The findings of the study led to the identification of 15 strengths in the three categories of Quality Features, Simplicity, and Suitability, and 13 weaknesses in the six categories of Publications, Citations, Academic Age, Author Credit Allocation, Variety of Fields, and mathematical calculation for H-index. Finally, 28 components were identified as the minimum set of necessary components to develop a comprehensive author-level index to help evaluate researchers more realistically and fairly. The minimum components that need to be considered in developing a comprehensive author-level index can be proposed as follows: Quality Features, Simplicity, Suitability, Publications, Citations, Academic Age, Author Credit Allocation, Variety of Fields, and mathematical calculation
