179,114 research outputs found
Informetrics on M. N. Srinivas
No full textM. N. Srinivas, the well known sociologist is widely recognised as architect of modern Indian sociology and social anthropology. His publications have been analysed by year, domain, authorship pattern, channels of communication used. Keywords, etc. The results indicate that the papers published by him are of a nature that qualify him to be a 'role model' for the younger generations to emulate.
By the end of 1995, Srinivas had to his credit 144 papers which, included 33 broad papers in sociology and anthropology; 18 papers in social change; 28 papers in village studies; 12 papers on religion; 17 papers on caste and 36 papers of general popular interest. The periods 1958-61 and 1974-77, when Srinivas was 38-41 and 58-61 years old. were his most productive periods with highest publication activity
Traversable wormholes in
No full textIn this work, the study of traversable wormholes in f(R) gravity with the function , where and n are arbitrary constants, is taken into account. The shape function , proposed by Samanta et al. (arXiv:1811.06834v
Strutture capitaliste e corpi macchinici in Kentuki di Samanta Schweblin
No full textSamanta Schweblin (Buenos Aires, 1978) è l’autrice di Kentuki (2018), romanzo ascrivibile a quelle che oggi cominciano ad essere chiamate “distopie del presente”, o “presente aumentato” (Deotto, 2018). Il romanzo narra la proliferazione del fenomeno globale dei kentuki, peluche meccanici connessi a dei codici di accesso acquistabili che permettono di essere osservati – nel caso di chi decide di avere fisicamente un kentuki – e di osservare – per chi invece preferisce comprare i codici d’accesso online e quindi essere un kentuki. Per esempio, un’anziana pensionata peruviana può osservare, attraverso un peluche a forma di coniglietta, la vita di una giovane tedesca a Erfurt. Il mondo descritto dalla Schewblin appare così polarizzato tra chi osserva e chi è osservato, in cui le due parti sembrano occupare dei ruoli e dei posizionamenti complementari e interrelati all’interno del mondo neoliberista e iperglobalizzato di Kentuki. Da un lato, chi è guardato appare inquadrabile nelle dinamiche consumistiche descritte da Baudrillard ne La società dei consumi (1970), in cui lo scaffale del supermercato, il packaging e l’idea di entrare a far parte di una comunità attraverso l’acquisto di un prodotto mettono in funzione le logiche del pensiero magico da lui descritte (p. 11, 2019). Dall’altro, chi guarda assume comportamenti più strettamente ascrivibili a forme di capitalismo recenti, come quello di piattaforma (Srnicek, 2017) e di sorveglianza (Zuboff, 2019), nella completa alienazione dalla dimensione fisica e soggettiva della realtà. Ciò che sembra infatti sospeso tra questi due poli sembrano essere proprio i corpi, intesi sia come corpi fisici (i padroni dei kentuki), che come corpi macchinici (i kentuki stessi), e come corpi assenti (chi guarda tramite i kentuki). Il corpo di chi è guardato è inafferrabile, desiderato e osservato; del corpo di chi guarda non restano invece che degli output meccanici sfogati attraverso i peluche che diventano per loro una protesi macchinica di identità, mentre ai corpi reali – ancorati davanti a uno schermo – viene pian piano negata la soddisfazione dei bisogni più primari come cibo e igiene. In questo modo i corpi diventano merce, a metà tra voyeurismo e dissoluzione negli apparati di funzionamento dei kentuki.
Attraverso una metodologia basata su teorie che spaziano dall’analisi della società dei consumi (Baudrillard), a quella del neoliberismo attuale (Fisher, Lyon), passando attraverso gli studi sulla relazione tra il corpo e la macchina (Braidotti, Haraway), l’intervento si propone di analizzare il rapporto tra chi possiede un kentuki e chi è un kentuki nel romanzo di Samanta Schweblin prestando particolare attenzione al divenire macchinico dei corpi (Deleuze, Guattari) innescato dall’uso di una tecnologia di massa senza precedenti
Direct numerical simulations of turbulent flow through porous channels and ducts
No full textDirect numerical simulations of the fully developed turbulent flow through a porous channel and duct are performed based on the spectral element code Nek5000. The volume-averaged Navier-Stokes (VANS) equations are implemented in order to describe the flow in the composite medium. The numerical simulations of the VANS equations are carried out at a constant value of the bulk Reynolds number when the porosity, or equivalently, the permeability of the medium varies successively. The mean and turbulent energy budgets are computed and the effect of porosity on the secondary flow in a duct is examined
Turkish Adaptation, Reliability, and Validity of the SAMANTA Questionnaire for Non-Pregnant Women of Reproductive Age
No full textBackground: Heavy menstrual bleeding (HMB) significantly impacts women’s quality of life (QoL). However, despite the high prevalence of HMB, culturally adapted screening tools remain scarce in Turkey. This study aimed to adapt and validate the SAMANTA questionnaire for non-pregnant Turkish women of reproductive age. Methods: This two-stage methodological study was conducted between January and June 2023. The adaptation process involved translating the SAMANTA questionnaire and culturally aligning it to Turkish healthcare practices. Psychometric testing was conducted on 148 women aged 18–45 years recruited from outpatient gynecological services at a tertiary care institution. Reliability was assessed through internal consistency (Cronbach’s alpha) and test-retest reliability (intraclass correlation coefficient, ICC). Validity was evaluated by examining correlations between questionnaire scores and external measures of HMB severity and QoL. Results: The Turkish SAMANTA questionnaire exhibited satisfactory internal consistency, reflected by a Cronbach’s alpha of 0.713, and an ICC of 0.668, reflecting moderate reproducibility across the test-retest assessment. Significant correlations with external measures, including HMB severity (r = 0.762), supported its criterion validity. Over half of the participants (50.7%) scored ≥3, indicating the presence of HMB symptoms. Responses highlighted the substantial impact of HMB on daily activities, emotional well-being, and social engagement. Conclusions: The Turkish SAMANTA questionnaire represents a reliable and culturally appropriate tool for screening HMB. The straightforward design and cultural adaptation make the Turkish SAMANTA questionnaire suitable for identifying women who may require further clinical evaluation. Future research should explore its utility in various clinical contexts, including primary care, and community health initiatives
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
How do the poor handle money? What do the financial diaries of char dwellers tell us about financial inclusion?
No full textDerived from livelihoods surveys and ethnographic material about people living on the chars, or river islands, in deltaic lower Bengal, this paper illustrates the complex, diverse and ingenious ways that the poor manage money. These islands constitute some of the most vulnerable housing locations of some of the poorest communities; state services and facilities do not reach the chars because they are not listed as land in revenue records. It demonstrates that the poor live in a diverse economy where community spirit, family assistance and trust play roles equally important to markets. In doing so, it puts forth a grounded-in-the-field, evidence-based, critique of the slogan ‘financial inclusion’ that has gained prominence in recent years
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Profilo Immunoistochimico di Citochine Infiammatorie e Fattori di Crescita nell'Occhio Umano
No full textThe aim of this experimental thesis focuses on the study of eye diseases related to the involvement of growth factors, of inflammatory cytokines in chronic-inflammatory, and of tissue remodeling. Particular emphasis has been addressed to the physiopathology of the eye surface and the complex relationships existing between cells and mediators in the immune response. Furthermore, the research has been directed to molecular events that control these biological responses. The lost in regulation of the inflammatory processes corresponds to the loss of control of the production/action of cytokines followed by the onset of inflammatory or autoimmune pathologies.
Immunohistochemical technique has been performed in order to evaluate the physiopathological behaviour of inflammatory cytokines and of some growth factors (TGF-b1, IL-1b, IL-6, TNF-a and VEGF) located in the ocular tissues. Samples were obtained from human patients affected by glaucoma, diabetic retinopathy and macular degeneration. Our main purpose was to assess the levels of expression and localization of pro-inflammatory cytokines by immunohistochemistry in order to identify their involvement in the pathology, assuming for them a role in the modulation of these factors as a potential therapeutic target. Our study has shown an imbalance between pro- and anti-inflammatory cytokine plays a key role in the pathogenesis of retinal diseases. This disproportion within a complex regulatory network is related to some immunological processes that promote autoimmunity, chronic inflammation and / or tissue destruction. We were able to confirm that the inflammatory process involves a complex cascade of molecular and cellular biological signals, altering the physiological responses of the ocular tissues. The transmission electron microscopy investigation (TEM) showed that at the site of the lesion cells the probable release of molecular signals produces changes in the affected area: dilation of blood vessels resulting in increased blood flow and vascular permeability, exudation of fluid containing proteins such as immunoglobulins and invasion by leukocytes. It is well known that chronic and prolonged inflammation is a fundamental feature in some diseases such as atherosclerosis, obesity, diabetes, rheumatoid arthritis, asthma and various types of cancer. These diseases are strictly connected with their ocular manifestations: diabetic retinopathy, scleritis, uveitis, dry eye syndrome and ocular tumours. It should be noticed that pharmacological and clinical advances occur in areas apparently distant from application in ophthalmology, but they should be potentially used also in the ocular field by a translational application. Since many ocular tissues have a immune-privileged system to protect the delicate visual apparatus, the control of the acute inflammation is regulated by the same pathways and mediators that manage inflammatory responses in other organs. These scientific informations not only provide further support to the chronic inflammation, that plays a significant role in the pathogenesis of diabetic retinopathy, but also suggest that the inflammatory process is active even before retinopathy (diabetic and/or proliferative) is clinically diagnosed. Therefore, the alteration of the profile of some cytokines might be useful both as a predictive marker as well as an important target for the development of new therapeutic treatments.
A novel pharmacological approach to treat eye inflammation may be represented by progress in the cellular therapy. In recent years, research has been devoted to the development of cell therapy applied to eye diseases producing a remarkably increased risk of visual impairment. Recently, cellular therapy has evolved into two research pathways: one finalized to a remodeling of the structure and the relative functions of specific tissues using stem cells; the other one has been focused on the restore of the immunological homeostasis controlling the harmful effects caused by inflammatory diseases
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
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