161 research outputs found
PBSVM: Partitioning and biased support vector machine for vocal fold pathology assessment using labeled and unlabeled data sets
No full textIranian Mathematical Society A family of large set of size nine A FAMILY OF LARGE SET OF SIZE NINE
No full textAbstract. We investigate the existence of some large sets of size nine. The large set L
Designing an Optimal Model for Personal Branding of Professional Athletes on Instagram and its Role in Sports Migration
No full textThe primary objective of this study is to establish a comprehensive model for the personal branding of professional athletes on Instagram, encompassing its impact on sports migration. To this end, a mixed-method research approach was adopted, wherein the qualitative section incorporated insights gleaned from library experts and semi-structured interviews with 15 experts. Following this, a Delphi screening technique was utilized, resulting in the identification of 4 significant factors and a total of 52 indicators. Upon completion, a 52-item questionnaire was formulated. The statistical population of this study includes professional athletes who are active users of Instagram. In order to determine the sample size for each factor (ranging from 10 samples), 520 individuals were selected. SmartPLS2 software was employed to model the structural equations and further analyze the collected data. Through the process of confirmatory factor analysis, four key factors emerged: 1) performance, comprised of 7 indicators; 2) personal, consisting of 12 indicators; 3) social, encompassing 13 indicators; and 4) ethical, with 8 indicators. Altogether, 40 distinct indicators were identified. The computed internal reliability, item reliability, convergent and divergent validity, and significance coefficients of the paths, as well as the R2 of the model, all demonstrated a high degree of suitability for further analysis. Moreover, the Goodness of Fit (GOF) was determined to be 0.48, falling within the ideal range. The analysis revealed a significant influence of athletes' personal brand on sports migration, with social factors (impact: 0.185) and personal factors (impact: 0.384) exerting a notable effect at the p < 0.01 level, while functional and moral factors showed no significant influence. Moreover, the R2 value indicated that the 4 factors of athletes' personal brand accounted for approximately 48% of the causes of sports migration.IntroductionIn the realm of professional sports, renowned athletes are pivotal elements of the business, often attaining great popularity amongst sports fans as human brands. Given the inherent risks of injuries or performance loss that may arise, athletes in the sports industry are considered as highly volatile products. This underscores the crucial importance for athletes to devise robust business strategies, where the personal brand acts as a powerful trademark that enhances their value and marketability. Furthermore, in recent times, the phenomenon of athlete migration in Iranian sports has been on the rise. According to the most recent statistics from the International Organization for Migration regarding Iran, the country occupies 69th place out of 188 other nations, with a migration rate of 3.4%, which includes coaches and athletes.Literature ReviewIn the domain of personal branding, the findings of Banite et al. (2011) highlight that eight fundamental factors significantly influence the selection of a prominent athlete for product endorsement. These factors encompass: the bond shared by the audience with the athlete and the product, the alignment between the product and the athlete's field of expertise, the athlete's attractiveness, respectability, recognizability within society, trustworthiness, and the general interest in the athlete. In their study, Naqvi and colleagues (2019) identified 13 key categories and 70 distinct concepts, including aspects such as management style, professional commitment, internal and external factors, chivalry, harmony, competition style, attractiveness, and so forth. Building on this, Nazimi and colleagues (2020) further identified a total of 62 concepts, organized into 11 categories, and 4 main factors: athlete behaviors, personality traits, marketable lifestyle, and sports performance. Among these factors, "sports performance" stands out as the most influential in advancing the personal brand of professional athletes.Numerous studies on personal branding have highlighted the crucial role of media, particularly social networks, in its formation, applicable to both athletes and non-athletes, including managers. In this context, Baidullah Khani and Kahrazeh (1400) have identified three significant factors that contributed to Trump's election as the president of the most powerful nation in the world: media narratives, performance style, and the reception/perception of the general public. Various studies have explored the causes of migration, yielding mixed results. Javadzadeh (2014) found that economic factors were a primary cause, while Qalipour and colleagues (1386) emphasized socio-theoretical justice and Aghazadeh (1394) underscored internal motives. Moghimi (2017) advocated for an effective management system to retain elites, while Shah-Abadi (2013) highlighted the influence of a lack of political and civil freedoms on elite migration. Grossi (2003) divided the factors influencing migration into four categories: economic, social, educational, and cultural, while Lenoir Towiz and Siuk (2021) underscored pull factors drawing players to work abroad and aspects deterring them from their country's sports system. Orliosky et al. (2018) emphasized a combination of individual, family, organizational, and national factors, while Ario et al. (2016) pointed to the quality of governance as a factor. Mitra et al. (2011) found increased political stability and, as outlinedDespite the significance of athletes' personal branding and its influence on sports migration, there has been relatively little research conducted in Iran, particularly within the virtual realm. Furthermore, existing studies in this domain have yielded varied outcomes. In our modern era, the topic of personal branding has become a prominent subject frequently discussed in social networks. Considering the significant role of social networks in building a personal brand, this research aims to identify the factors influencing the desired personal branding model of professional athletes on Instagram. Moreover, this study aspires to investigate the factors affecting sports migration, and ultimately explores the impact of athletes' personal branding on sports migration.MethodologThe research method utilized in the study combines both qualitative and quantitative approaches. In the first phase, library studies and semi-structured interviews were employed to identify indicators linked to the development of athletes' personal brands using the Data Theory approach rooted in grounded theory and Charmaz's structuralist viewpoint. Subsequently, existing data was coded, and a questionnaire was designed based on the researcher-developed model presented in the first stage. This allowed for the collection of quantitative data for testing the model. Ultimately, the study examined the impact of personal branding on sports migration.ResultsThe research method utilized in the study combines both qualitative and quantitative approaches. In the first phase, library studies and semi-structured interviews were employed to identify indicators linked to the development of athletes' personal brands using the Data Theory approach rooted in grounded theory and Charmaz's structuralist viewpoint. Subsequently, existing data was coded, and a questionnaire was designed based on the researcher-developed model presented in the first stage. This allowed for the collection of quantitative data for testing the model. Ultimately, the study examined the impact of personal branding on sports migration. The analysis revealed that the personal brand of athletes indeed influences sports migration, with a path coefficient equal to 0.444. The t-value of 17.106 demonstrates a significant impact at the p < 0.01 level. The study further found that among the four factors of athletes' personal branding, two of them—social factors and personal factors—exerted a significant influence on sports migration at the p < 0.01 level. Meanwhile, functional and moral factors showed no significant effect on this phenomenon.ConclusionSocial networks, particularly Instagram, have gained widespread popularity among users due to their distinctive features and characteristics. They have the potential to play a significant role in disseminating information and fostering interaction and communication on a global scale. The media and social networks not only influence the formation of athletes' personal branding but also, as the findings of this research demonstrated, are linked to the migration of athletes. This phenomenon is not solely relevant to athletes, but also pertains to individuals associated with sports networks such as club proprietors, managers, representatives, officials, and members of the media. The factors influencing migration are multifaceted and encompass not only economic aspects but also political, historical, geographical, sociological, and cultural factors. Consequently, to fully grasp the complex causes of migration, a comprehensive approach that goes beyond economic considerations and delves into broader societal dynamics is necessary.Social media represents a novel public arena in the day-to-day lives of millions of individuals, fostering an environment where people can share, discuss, organize, and plan digitally, ultimately paving the way for collaboration. This change in communication patterns profoundly impacts interactions between people and within society, consequently transforming our social lives. The advent of these alternative communication channels is undoubtedly beneficial for migrants who make the decision to leave behind their family, friends, and homeland.Social networking platforms like Instagram, Telegram, Facebook, Twitter, LinkedIn, and others serve a primary function of enabling individuals to forge and maintain strong ties with their country of origin, construct and preserve transnational networks, rapidly disseminate information, and establish more precise connections abroad. Transnational networks developed by immigrants in a digital space can significantly influence the migration process and, consequently, the immigrants themselves. In summary, sports migration has various positive and negative aspects, but considering the allure of countries accepting immigrants, the push of internal factors, and the absence of plans to improve the sports status, increase political stability, promote economic activities, expand social capital, establish justice and trust, ensure good governance, and effective leadership can effectively minimize the adverse effects of sports migration
Persian school 2014
No full textTo design a contemporary Persian school in which the essence of the traditional Persian Architecture is constructed, in combination with integrating new pedagogic ideas.Explore LabArchitectureArchitecture and The Built Environmen
Marriage and divorce law in Pre-Islamic Persia. Legal status of the Sassanid’ woman (224–651 AD)
No full textFormore than 400 years, the Sassanid Persia was the greatest state in Asia.
Zoroastrianism supported by Shahanshahs had an immense influence on the legal
principles of the state. The Sassanian society was Patriarchy, based on the society’s
gender construction. Because the patriarchal constructions of social practices were
legitimized by religion, the basic limitation of the women’s rights in the Sassanian
period was the obligation to have the male guardian. Below considerations regard the
problem of the civil rights of Sassanian women, based on analysis of the legal status of
women in marital unions. In 2018, in the journal Cogent Arts & Humanities 5, 1, an
article by Mahmoud Emami Namin “Legal status of women in the Sassanid’s Era
(224–651 AD)” was published. In his paper, Dr. Mahmoud Emami Namin, arguments
against two theses presented by the researchers studying the Sassanian history. The
first thesis is related to the assumption that women lacked a legal entity, and, consequently,
could not make use of her rights. The second thesis, challenged by the author
is related to the “opinions about the prevalence of incestuous marriage (next-of-kin
marriage) and loan marriage (wife lending) among the Sassanids”. The author challenges
the arguments regarding the position of the Sassanian women presented by
two distinguished orientalists Christian Bartholomae and Arthur Christensen.
Obviously, he is right. However, it is necessary to note that the picture of Persia depicted
by the above-mentioned researchers was questioned bymodern historians a few years
ago. Theses made by Professor Christian Bartholomae, presented in German University
of Heidelberg, in 1924 (the woman’s rights in the Sassanid’ Empire), related to the lack
of legal status of women in pre-Islamic period, which Dr. Mahmoud Emami Namin polemizes with, were refuted by the research conducted by the expert on Sassanid law
Professor Maria Macuch (see in References). The second problem, Dr. Mahmoud Emami
Namin focusses on, is “the authorization of incest”,which was discussed by Christensen
and Bartholomae. This part of the paper is much more interesting and presents interesting
conclusions. One must agree with Dr. Mahmoud Emami Namin in that the
“incest” was a common practice among Zoroastrians in the Sassanid’s period, andwas
never deemed “weird and offensive”. The paper lacks the analysis related to factors
contributing to the negative picture of Persia in scientific literature written in the
previous century. It seems to have predominantly resulted from cultural differences.
Orientalists studying the history of the Sassanids were from the “western culture”.
Therefore, they did not understand the mentality of the society governed by
Zoroastrian principles, which reflected their descriptions of the pre-Islamic Persia. Their
ethical assessment and interpretation of sources were determined by the system of
values, in which they had been brought up. It should be noted that the manuscript
contains extremely interesting passages in the manuscript related to the legal aspects
of different types of marriages, financial conditions or children’s rights. In the manuscript,
the author presents a slightly different division of marriages that the one
proposed by Dr. MahmoudEmami Namin. It seems that the principal assumptionmade
by the author: “Throughout this paper, the baseless writings of orientalists about the
rights of the Sassanid’s women are critically examined” may be described as preaching
to the converted
UWB communication systems: conventional and 60 GHz : principles, design and standards
No full textIn this book the author examines 60 GHz and conventional UWB. The book introduces the fundamentals, architectures, and applications of unified ultra wideband devices. The material includes both theory and practice and introduces ultra wideband communication systems and their applications in a systematic manner. The material is written to enable readers to design, analyze, and evaluate UWB communication systems.
Unraveling Twisty Linear Polarization Morphologies in Black Hole Images
No full textFull list of the authors: Emami, Razieh; Ricarte, Angelo; Wong, George N.; Palumbo, Daniel; Chang, Dominic; Doeleman, Sheperd S.; Broderick, Avery E.; Narayan, Ramesh; Wielgus, Maciek; Blackburn, Lindy; Prather, Ben S.; Chael, Andrew A.; Anantua, Richard; Chatterjee, Koushik; Marti-Vidal, Ivan; Gómez, Jose L.; Akiyama, Kazunori; Liska, Matthew; Hernquist, Lars; Tremblay, Grant; Vogelsberger, Mark; Alcock, Charles; Smith, Randall; Steiner, James; Tiede, Paul; Roelofs, FreekWe investigate general relativistic magnetohydrodynamic simulations to determine the physical origin of the twisty patterns of linear polarization seen in spatially resolved black hole images and explain their morphological dependence on black hole spin. By characterizing the observed emission with a simple analytic ring model, we find that the twisty morphology is determined by the magnetic field structure in the emitting region. Moreover, the dependence of this twisty pattern on spin can be attributed to changes in the magnetic field geometry that occur due to the frame dragging. By studying an analytic ring model, we find that the roles of Doppler boosting and lensing are subdominant. Faraday rotation may cause a systematic shift in the linear polarization pattern, but we find that its impact is subdominant for models with strong magnetic fields and modest ion-to-electron temperature ratios. Models with weaker magnetic fields are much more strongly affected by Faraday rotation and have more complicated emission geometries than can be captured by a ring model. However, these models are currently disfavoured by the recent EHT observations of M87*. Our results suggest that linear polarization maps can provide a probe of the underlying magnetic field structure around a black hole, which may then be usable to indirectly infer black hole spins. The generality of these results should be tested with alternative codes, initial conditions, and plasma physics prescriptions. © 2023. The Author(s). Published by the American Astronomical Society.It is a great pleasure to thank Peter Galison and Michael Johnson for very fruitful conversations. We are very grateful to the referee for very constructive comments. R.E. acknowledges support by the Institute for Theory and Computation at the Center for Astrophysics as well as grant numbers 21-atp21-0077, NSF AST-1816420, and HST-GO-16173.001-A. We thank the supercomputer facility at Harvard University where most of the simulation work was done. G.N.W. gratefully acknowledges support from the Taplin Fellowship. A.R.R. and K.C. acknowledge support by the National Science Foundation under grant No. OISE 1743747. R.J.A. acknowledges the Future Faculty Leaders Postdoctoral Fellowship. This research was made possible through the support of grants from the Gordon and Betty Moore Foundation and the John Templeton Foundation. D.C. acknowledges the support of the black hole Initiative at Harvard University, which is funded by grants from the John Templeton Foundation and the Gordon and Betty Moore Foundation to Harvard University. A.C. was supported by Hubble Fellowship grant HST-HF2-51431.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. A.C. also gratefully acknowledges support from the Princeton Gravity Initiative. This work was also supported by the National Science Foundation grants AST-1935980 and AST-2034306 and the Gordon and Betty Moore Foundation (GBMF-5278). The opinions expressed in this publication are those of the author(s) and do not necessarily reflect the views of the Moore or Templeton Foundations. F.R. was supported by NSF grants AST-1935980 and AST-2034306. I. M.-V. acknowledges support from the GenT program of Generalitat Valenciana (CIDEGENT/2018/021), MICINN Research Project PID2019-108995GB-C22 and the Astrophysics and High Energy Physics Programme by MCIN, with funding from European Union NextGenerationEU (PRTR-C17I1) and the Generalitat Valenciana through grant ASFAE/2022/018. Software: matplotlib (Hunter 2007), numpy (van der Walt et al. 2011), scipy (Oliphant 2007), seaborn (Waskom et al. 2020), pandas (Reback et al. 2021), h5py (de Buyl et al. 2016)
WITHDRAWN: Preparation of nano α-Al2O3 particles with optimum conditions by the sol–gel method
No full textThis article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause..The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy
Accelerated bridge construction (ABC) decision making and economic modeling tool
No full textIn this FHWA-sponsored pool funded study, a set of decision making tools, based on the Analytic Hierarchy Process (AHP) was developed. This tool set is prepared for transportation specialists and decision-makers to determine if ABC is more effective than traditional construction for a given bridge replacement or rehabilitation project. The tool set is user-friendly, flexible to accommodate a range of construction situations, transparent as to the method of calculation, and customizable to maintain future relevance. To accommodate this task, a comprehensive literature review on a number of relevant domains such as ABC construction techniques and decision making approaches, were completed. The findings were summarized into a decision model hierarchy that was also incorporated into the decision making software. The software was tested through evaluating a set of real-world construction projects.Final Report -- ABC AHP Decision Tool Manual -- Pooled Fund Project Statement of Work for Multi-State ABC Decision Tool and Economic Modeling.by Toni Doolen, Amirali Saeedi, Samin Emami for Oregon Department of Transportation, Research Section and the Departments of Transportation in California, Iowa, Minnesota, Montana, Texas, Utah and Washington and Federal Highway Administration.Title from PDF title page (viewed on October 19, 2021)."FHWA-OR-TPF-12-06"--Technical report documentation page."PROJECT TPF-5(221)."This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Includes bibliographical references.Sponsored by Oregon Department of Transportation and Federal Highway Administration, also the Departments of Transportation of California, Iowa, Minnesota, Montana, Texas, Utah and Washington.Mode of access: Internet from the Oregon Government Publications Collection.Text in English.Final Repor
68Ga DOTATATE PET/CT Versus 18F-FDG PET/CT for Detecting Intramedullary Hemangioblastoma in a Patient With Von Hippel-Lindau Disease
No full text- …
