3,885 research outputs found
Mães perturbadoras, filhos monstruosos: uma leitura de Distância de resgate, de Samanta Schweblin
No full textDistância de resgate (2016) é a primeira e única novela de Samanta Schweblin, escritora argentina tradicionalmente contista. A narrativa se dá através de um diálogo alucinante entre a narradora e seu interlocutor, e tem como tema central a relação ao mesmo tempo delicada e perturbadora entre duas mães e seus respectivos filhos. O presente trabalho é guiado pelo interesse em analisar tais relações, com foco nas tradicionais noções de instinto materno e inocência infantil. Com o intuito de auxiliar no entendimento das temáticas destacadas, propõe-se o estudo de contos selecionados da autora. Tenciona-se, finalmente, discorrer acerca das manifestações do fantástico nos textos citados, considerando-se que a distorção sutil da realidade é um dos traços marcantes da produção de Schweblin.Fever dream (2016) is the first and only novel ever written by Samanta Schweblin, an Argentinian short story writer. The narrative develops itself through a conversation between the narrator and her interlocutor, and focuses mainly on the delicate yet disturbing relationship between two mothers and their children. The present paper is guided by the interest of analyzing these relations, focusing on the traditional concepts of maternal instinct and child innocence. With the intention of helping in the understanding of these themes, a study of selected short stories by the author will be made. Finally, the manifestation of the fantastic genre in the mentioned texts will be studied, considering that the distortion of reality is one of the distinct traits of Schweblins production
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
Transport of Antibiotics through the Substrate Specific OprD Channel of Pseudomonas Aeruginosa
No full textLinear stability of a liquid flow through a poroelastic channel
No full textA liquid flow through a channel is studied based on the Orr-Sommerfeld eigenvalue problem, where the lower wall of the channel is occupied by the saturated poroelastic medium. The linear stability analysis is investigated in detail for arbitrary value of the wavenumber. The eigenvalues are computed numerically by using the Chebyshev spectral collocation method. The effect of physical parameters, for instance, permeability, elasticity as well as their combined effect on the unstable modes are examined
Molecular dynamics simulation study of solvent effects on conformation and dynamics of polyethylene oxide and polypropylene oxide chains in water and in common organic solvents
No full textIn this paper, the conformation and dynamics properties of polyethylene oxide (PEO) and polypropylene oxide (PPO) polymer chains at 298 K have been studied in the melt and at infinite dilution condition in water, methanol, chloroform, carbon tetrachloride, and n-heptane using molecular dynamics simulations. The calculated density of PEO melt with chain lengths of n = 2, 3, 4, 5 and, for PPO, n = 7 are in good agreement with the available experimental data. The conformational properties of PEO and PPO show an increasing gauche preference for the O–C–C–O dihedral in the following order water>methanol>chloroform>carbon tetrachloride = n-heptane. On the contrary, the preference for trans conformation has a maximum in carbon tetrachloride and n-heptane followed in the order by chloroform, methanol, and water. The PEO conformational preferences are in qualitative agreement with results of NMR studies. PEO chains formed different types of hydrogen bonds with polar solvent molecules. In particular, the occurrence of bifurcated hydrogen bonding in chloroform was also observed. Radii of gyration of PEO chains of length larger than n = 9 monomers showed a good agreement with light scattering data in water and in methanol. For the shorter chains the observed deviations are probably due to the enhanced hydrophobic effects caused by the terminal methyl groups. For PEO the fitting of end-to-end distance distributions with the semi-flexible chain model at 298 K provided persistence lengths of 0.375 and 0.387 nm in water and methanol, respectively. Finally, the radius of gyration of Pluronic P85 turned out to be 2.25 ± 0.4 nm at 293 K in water in agreement with experimental data
Diffusion of 1,2-Dimethoxyethane and 1,2-Dimethoxypropane through Phosphatidycholine Bilayers: A Molecular Dynamics Study
No full textIn this paper, a theoretical study of 1,2-dimethoxyethane (DME) and 1,2-dimethoxypropane (DMP) at water/n-heptane and 1,2-dimyristoyl-sn-glycero-3-phospatidycholine (DMPC) lipid bilayer/water interfaces using the umbrella sampling method is reported. Recently proposed GROMOS96/OPLS compatible models for DME and DMP have been used for the simulation studies. The percolation free energy barrier of one DME and DMP molecule from water to n-heptane phase calculated using the umbrella sampling method turned out to be equal to ∼18.5 kJ/mol and ∼6 kJ/mol, respectively. In the case of the DMPC lipid bilayer, overall free energy barriers of ∼20 kJ/mol and ∼12 kJ/mol were obtained for DME and DMP, respectively. The spontaneous diffusion of DME and DMP in the lipid bilayer has also been investigated using unconstrained molecular dynamics simulations at the water/DMPC interface and inside the lipid bilayer. As expected from the estimated percolation barriers, simulation results show that DME, contrary to DMP, spontaneously diffuse into the aqueous solution from the lipid interior. In addition, simulations with multiple DME or DMP molecules at the interface show spontaneous diffusion within 50 ns inside the DMPC layer only for DMP
Structure and dynamics of 1,2-dimethoxyethane and 1,2-dimethoxypropane in aqueous and non-aqueous solutions: A molecular dynamics study
No full textHerein, we report a comparative modelling study of 1,2-dimethoxyethane (DME) and 1,2-dimethoxypropane (DMP) at 298 K and 318 K in the liquid state, water mixtures, and at infinite dilution condition in water, methanol, carbon tetrachloride, and n-heptane. Both DME and DMP are united-atom models compatible with GROMOS/OPLS force fields. Calculated thermodynamic and structural properties of the pure DME and DMP liquids resulted in excellent agreement with the experimental data. In aqueous solutions, densities, diffusion coefficients, and concentration dependent conformers of DME, were in agreement with experimental data. The calculated free energy of solvation (ΔGhyd) at 298 K is equal to –22.1 ± 0.8 kJ mol−1 in good agreement with the experimental value of 20.2 kJ mol−1. In addition, the free energy of solvation of DME in non-aqueous solvents follows the trend methanol ≈ water < carbon tetrachloride < n-heptane, consistently with the dielectric constant of the solvents. On contrary, the presence of an extra methyl group on chiralcarbon makes DMP less soluble than DME in water (ΔGhyd = −16.0 ± 1.1 kJ mol−1) but more soluble in non-polar solvents as n-heptane. Finally, for the DMP the chiral discrimination of the two enantiomers was calculated as solvation free energy difference of one DMP isomer in the solution of the other. The obtained value of ΔΔGRS = –3.7 ± 1.4 kJ mol−1 indicates a net chiral discrimination of the two enantiomers
A disturbing and violent world: a reading of Samanta Schweblin\'s short stories
No full textOs contos da escritora argentina Samanta Schweblin são peculiares. A partir da atmosfera densa de suas narrativas, podemos ver de outra forma a nossa relação com o mundo e entre (e como) sujeitos. Este trabalho visa, com a análise de contos selecionados dos livros El núcleo del disturbio (2002) e Pájaros en la boca (2009), indagar sobre como o modo de representação proposto pela autora explora o cotidiano e as relações sociais, muitas vezes marcadas por diferentes manifestações de violência, suscitando um efeito perturbador para o leitor ao problematizar o real. Para isso, interessa-nos analisar como a obra da autora dialoga com dois universos importantes da tradição literária hispano - americana em geral, e argentina em particular, ao retomar o gênero conto e aspectos da literatura fantástica e do insólito. Além disso, essa proposta de leitura volta-se ao uso de uma representação que preza pela verossimilhança, aspecto essencial à narrativa fantástica, uma vez que o leitor reconheceria a realidade representada nos relatos, ao mesmo tempo que percebe que há algo inusitado (mas não necessariamente irreal ou sobrenatural) ocorrendo nas situações limítrofes construídas pela autora.Argentine writer Samanta Schweblin´s short stories are peculiar. From the dense atmosphere of her narratives, we can see in another way our relationship with the world and with others. This paper aims to investigate how the representation mode proposed by the author explores the daily life and the social relations, often marked by differe nt manifestations of violence, provoking a disturbing effect for the reader while turning the real into a problematic matter. For that, we are interested in analyzing how the author\'s work interacts with two important universes of the Hispano-American literary tradition in general, and in Argentine in particular, by returning to the short histories as a literary gender and working with aspects of fantastic literature and the fictional uncommon. In addition, this reading turns to the use of a representation that values verisimilitude, an essential aspect of the fantastic narrative, since the reader would recognize the reality represented in the narratives, while realizing that there is something unusual (but not necessarily unreal or supernatural) occurring in the borderline situations constructed by the author
The body and ritual healing in Samanta Schweblin's "Fever Dream"
No full textLiterature is able to give a new significance to clinical facts by revealing the potentiality that its signifiers acquire through time and the evolution of social groups. In this study I propose an analysis of the metaphoric function of the concept of the body (in its meaning of the social body) and ritual healing in Fever Dream by Samanta Schweblin. The aim is to study how these elements contribute to contextualizing the environmental denouncement of the use of toxic chemicals described by the author
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
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