bluuebunny/crossref_metadata_2025 huggingface dataset:
Consuming the Coast: mid-century communications of port tourism in the southern african Indian Ocean
Authors: Gupta Pamila
Published: March 2023

Throughout the early to mid-20th century, tourist passenger cruise liners moving along the Southern African coast were a popular leisure activity, undertaken by largely elite (white) Europeans (predominately British), Americans, and South Africans, with stopping off points including multiple Indian Ocean port cities such as Cape Town and Durban in South Africa and Lourenço Marques and Beira in Portuguese Mozambique. By considering the above twined port cities in relation to their entangled colonial and tourist pasts, and as operating within a distinct regional “cultural corridor”(NUTALL, 2009) of Southern Africa, this paper explores a series of leisured port spaces as inter-connected via the passenger cruise liner. The basis for my historical navigation is the tourism yearbooks produced by the Union-Castle Line, Round Africa service, those for 1939 and 1949 respectively.   That these guidebooks serve as portholes into the cosmopolitan microcosmic world of cruise ships makes them invaluable for understanding the history of leisure (and its concomitant products, consumer goods and advertising) in Southern Africa.
Destruição e reconfiguração do corpo na publicidade mundial dos anos 90
Authors: Safatle Vladimir
Published: March 2023

Trata-se de analisar as modificações das representações sociais do corpo na publicidade mundial dos anos 90. Tais modificações devem ser inseridas em um movimento mais amplo de reconfiguração da retórica publicitária que visa absorver novas representações sociais vindas de outros campos da cultura. Ao final, o movimento de constituição destas novas representações publicitárias do corpo é interpretado a partir de uma abordagem psicanalítica de certos aspectos da sociedade de consumo.

Palavras-chaves: corpo, publicidade, fantasma, psicanálise.

ABSTRACT

This article discusses the modifications on social representations of the body in the world advertising at the 90 s. Such modifications must be understood as a part of a mouvement of changes in the advertising rethoric. At the end of this article, the constitution of new body representations is interpreted with a psychoanalytical point of we about the consommation society.

Keywords: body, advertising, fantasy, psychoanalysis
O publicitário e a “sua” atividade publicitária
Authors: Toaldo Mariângela Machado
Published: March 2023

O presente artigo pretende aproximar-se um pouco mais do mundo da atividade publicitária no que se refere ao que está por trás dos “produtos” disponíveis na mídia e possibilitam sua existência. Trata-se de algumas considerações sobre a formação das características de uma atividade e, nessa questão, especialmente, do papel que o publicitário desempenha na caracterização da sua atividade: como ele direciona suas ações e, em função delas, como constitui a forma de reconhecimento de suas peculiaridades profissionais e da sua atividade como um todo. Propõe-se a discutir algumas questões pertinentes da ética profissional moderna conforme podem ser pensadas a partir de obras de Hannah Arendt e Alasdair MacIntyre

Abstract:

This article has the purpose to come closer to the world of publicity activity in reference to what stands behind the available “products” in the media and what enables their existence. Some considerations about the constitution of an activity, especially the role the publicist plays characterizing its activity: how he directs his actions and how he forms the

recognition of his professional peculiarities as a whole. It has the purpose of considering some issues about modern professional ethics as they can be thought based on the works

of Hannah Arendt (2001) and Alasdair MacIntyre (2001).

Palavras-chave: Atividade publicitária; Publicitário; Ética; Reconhecimento de uma

atividade.

Key-words: Publicity activity; Publicist; Ethics; Activity recognition.
Entrevista: A bolha da Internet e as empresas de comunicação no Brasil
Authors: Coutinho Marcelo
Published: March 2023

Elisabeth Saad é professora de jornalismo da ECA-USP, responsável pelas disciplinas de graduação e pós-graduação sobre a mídia digital. Também foi responsável pelo Portal da USP na Internet, que sob sua administração atingiu níveis de acesso domiciliar que superaram em termos proporcionais os verificados em instituições como Harvard, MIT e Oxford. É autora do livro Estratégias para a mídia digital, resenhado no número anterior desta revista e sobre o qual concedeu a seguinte entrevista para o prof. Marcelo Coutinho.
Resenha: Videologias: ensaios sobre televisão, de Eugênio Bucci & Maria Rita Kehl. São Paulo: Boitempo, 2004 (Coleção Estado de Sítio).
Authors: Fontenelle Isleide Arruda
Published: March 2023

comunicação, mídia e consumo.
Mudanças na linguagem publicitária
Authors: Citelli Adilson
Published: March 2023

Com este texto busca-se indagar até onde os termos mudança e inovação apresentam força de sinônimos na ordem geral dos discursos da publicidade e da propaganda. O pressuposto fundamental é o de que o apelo mágico à mudança, força mítica sob a qual se abrigam aqueles discursos, muitas vezes traz consigo a convivência paradoxal com procedimentos reiterativos, esquem áticos, carregados de lugares-comuns. Nesses casos, onde está escrito mudança leia-se conservação.

Palavras-chave: Discurso publicitário/propagandístico; mudan-

ças; inovação; conservação.

ABSTRACT

This text intends to question to what extent the terms change and innovation show synonymous strength in the general discourses on the advertisement and propaganda fields. The fundamental hypothesis is that the magical appeal to change, the mythical force that shelter those discourses, many times bring a paradox relationship with schematic, reiterative procedures, full of common place areas. On those cases, the meaning of change can be read as conservation.

Keywords: Advertisement discourse; change; innovation; conservation.
La estética de la violencia.La representación gráfica de las víctimas en los atentados del 11 de septiembre y el 11 de marzo: un examen de las portadas de los periódicos estadounidenses y españoles
Authors: Vizcarrondo Doris Martínez
Published: March 2023

El trabajo señala que la estética de la violencia es producto de

discursos definidos donde determinados elementos son o no permisibles. En este trabajo se compara el manejo estético de la violencia de las imágenes sobre el 11 de septiembre y el 11 de marzo que presentan la prensa escrita de los respectivos países (Estados Unidos y España).

Palabras claves: Estética; discurso; violencia virtual.

ABSTRACT

The study indicates that the aesthetic violence is product of defined discourses where determined elements are or not permissible. This research contrasts the management of the violence images of September 11 and March 11 of their respective written press.

Keywords: Aesthetic; speech; virtual violence.
O biopoder nos meios de comunicação: o anúncio de corpos virtuais
Authors: Bruno Fernanda
Published: March 2023

A crescente divulgação de pesquisas e “descobertas” biomédicas pelos meios de comunicação atesta novas formas de cuidado com o corpo. O artigo enfatiza o anúncio de virtualidades no campo da saúde e da doença, particularmente as sustentadas pela medicina genômica e pela epidemiologia dos fatores de risco. Ressaltamos algumas transformações no modo como os indivíduos são incitados a zelar pela própria saúde, hoje caracterizado em especial pela gestão permanente dos riscos de desenvolver doenças virtuais.

Palavras-chave: Mídia; saúde; risco; doenças virtuais.

ABSTRACT

The growing media attention on biomedical research and “latest findings” speak of new forms of body care. The present article highlights media coverage of body virtualities concerning health and sickness, especially those supported by genomic medicine and by the epidemiology of risk factors. We discuss some transformations in the way in which individuals are urged to care for their health. This is specially characterized today by the permanent management of the risks of developing virtual diseases.

Keywords: Media; health; risk; virtual diseases.
Sociabilidades midiáticas: flexibilidade, mutação e pluralidade
Authors: Silva Erotilde Honório , De Andrade Roberta Manuela Barros
Published: March 2023

Um dos elementos mais importantes na construção das sociabilidades contemporâneas é, sem dúvida, a mídia. Cada um dos artefatos culturais que compõe a comunicação mediada tecnologicamente – jornais, televisões, películas, rádios, internet – vai proporcionar interações distintas com diferentes agentes sociais. Esses sujeitos sociais pertencem a contextos históricos e gerações diferenciadas, e vão estabelecer formas particulares de interação com os meios. O ponto central dessa reflexão abarca, pois, as maneiras

específicas como os mesmos meios de comunicação interagem de formas diversas com gerações diferentes, bem como de que modo esses meios interagem entre si, construindo uma teia de sociabilidade complexa que nos ajuda a vislumbrar o impacto da mídia na constituição do imaginário social brasileiro.

Palavras-chave: Sociabilidade; mídia; geração; imaginário.

ABSTRACT

One of the most important elements in the construction of con-temporary sociabilities is, no doubt, the media. Each cultural artifact which make up the technologically mediated communication – newspapers, television, movies, radios, internet – will provide distinct interactions with different social agents. These social agents belong to distinct historical contexts and generations and they will establish particular ways of interacting with the media.The main point of this reflection thus encompasses the specific ways by which the same media interact in different ways with different generations. The article also discusses the way in which the different media interact among themselves, building a complex network of sociability which help us to foresee the impact of the media in the construction of the Brazilian social imaginary.

Keywords: Sociability; media; generation; imaginary.
De Manet a Yves Saint-Laurent: uma análise semiótica
Authors: Santarelli Christiane Paula Godinho
Published: March 2023

A proposta deste artigo é fazer uma análise semiótica, com base na teoria greimasiana, da pintura original de Manet Le déjeuner sur l’herbe e de sua recriação para o anúncio da marca Yves Saint-Laurent. Os aspectos analisados nos dois “textos” são: os sistemas de valores, a estrutura narrativa, a estrutura de poder, os objetos de valor e a semântica profunda. A comparação dos dois discursos tem como objetivo atentar para as contradições no suposto

discurso libertador da publicidade de Yves Saint-Laurent, que pode estar presente na publicidade de outras marcas.

Palavras-chave: Publicidade; semiótica; arte; moda.

ABSTRACT

The purpose of this article is to offer a semiotical analysis of the original painting of Manet Le déjeuner sur l’herbe and of its recreation in an advertisement for the brand Yves Saint-Laurent. The aspects analyzed in the two “texts” are: the systems of enclosed values, the narrative structure, the power structure, the objects of value and deep semantics. The comparison between the two forms of speech aims to highlight the contradictions in the alleged liberating speech of the Yves Saint-Laurent advertisement, which may be present in advertising pieces from other brands.

Keywords: Advertising; semiotics; art; fashion.
A publicity e a publicidade (para além da propaganda)
Authors: Simões Cassiano Ferreira
Published: March 2023

Os termos publicidade e propaganda têm sofrido, em anos recentes, de um agravamento na forma indistinta com que são utilizados. Tal fato pode ser analisado dos pontos de vista lingüístico e histórico. Do ponto de vista lingüístico, é perceptível na língua inglesa a presença de três noções que precisam ser ajustadas às duas disponíveis nas línguas latinas em geral. Do ponto de vista histórico, é possível depreender, com base em uma aproximação com as idéias de Jürgen Habermas, que tanto a publicidade de “tornar públicas ações de esfera pública” quanto a de “anunciar transações comerciais” são criações burguesas comprometidas com o racionalismo e com a modernidade, sobrevindas da noção de público e, portanto, características de seu desenvolvimento socioeconômico baseado nas liberdades individuais e no mercado.

Palavras-chave: Publicidade; esfera pública; mercado.

ABSTRACT

The terms publicidade and propaganda have increasingly been used indistinctively in Brazil in recent years. Such fact can be analyzed from linguistic and historical points of view. From the linguistic point of view, the presence of a third concept in the English language usually needs to be adjusted to the two available ones in Latin languages. From the historical point of view, it is possible to infer over a Jürgen Habermas analysis, that both meanings of publicidade – “to make public the actions within thepublic sphere” and “to advertise commercial transactions” – are bourgeois creations implied to rationalism and modernity, in-herited from the notion of “public”. Therefore, it is characteristics of its social-economic development based on individual freedoms and market orientation.

Keywords: Publicity; public sphere; market.
Estéticas juvenis: intervenções nos corpos e na metrópole
Authors: Oliveira Rita
Published: March 2023

As culturas juvenis contemporâneas têm relação especial tanto com a cidade quanto com seus corpos. Esse trabalho propõe, com base em imagens metropolitanas articuladas ao cotidiano dos jovens – grafites, pixações, tatuagens e outras modificações corporais –, compor uma reflexão

sobre as culturas juvenis inseridas em complexas redes de pertencimentos, produções e apropriações simbólicas, disputas e lutas hegemônicas.

Parte-se do âmbito da cultura, ou seja, das práticas cotidianas e das experiências compartilhadas, da sensibilidade estética, das imagens, imaginários comuns aos grupos juvenis.

Palavras-chave: Juventude; metrópole; corpo; grafite; tatuagem.

ABSTRACT

Contemporaneous juvenile cultures have a special relation with the city as well as with the youths‚ bodies. This piece of work focuses on metropolitan images articulated to the every day lives of young people – graffiti, tattoos or other corporal modifications – in order to discuss about the juvenile

cultures inserted in complex networks of belonging, of productions and of symbolic appropriations, disputes and hegemonic conflicts. This discussion starts from the cultural point of view, in other words, from the quotidian practices and from shared experiences, from esthetic sensibility,

images, imaginaries that are common to juvenile groups.

Keywords: Youth; metropolis; body; graffiti, tattoo.
Dimensões do instante: mídia, narrativas híbridas e experiência urbana
Authors: Gomes Renato Cordeiro
Published: March 2023

As transformações da modernidade produzem um clima de superestimulação, que modifica a percepção humana, condicionada pelo excesso de estímulos exteriores e pelas novas tecnologias. Tal fenômeno relacionase à fixação do instante da vida urbana, captado em meio ao ambiente de sensações fugazes, em face do caráter efêmero da modernidade. Com base nessas premissas, busca-se estudar as relações entre tecnologias, instante e metropolização, ou seja, entre mídia e vida urbana. Privilegia-se o início do século XX, no Brasil, que passava pelo processo de modernização, a partir do projeto republicano. Nesse contexto, destaca-se a imprensa escrita, em especial a crônica de João do Rio, cuja coluna “Cinematographo” da Gazeta de Notícias revela como o diálogo com o cinema afeta a produção do discurso e do gênero que fixa o instante

do cotidiano do Rio de Janeiro em transformação. Essa mesma analogia com o cinema condiciona o relato de viagem a cidades européias que Alcântara Machado escreveu para o Jornal do Comércio de São Paulo, em 1925. A experiência urbana é, então, representada em narrativas híbridas que a mídia impressa veicula. Esse cinema escrito ganha novo sentido quando é rearticulado em outro suporte material, como o livro.

Palavras-chave: Tecnologias; instante e modernidade; metropolização e experiência urbana; jornalismo impresso e cinema; João do Rio e Alcântara Machado.

ABSTRACT

The transformations in modernity trigger an air of overstimulation that modifies human perception, conditioned by the excess of exterior stimuli and new technologies. This phenomenon is related to the fixation of the instant in urban life, captured in the midst of fugative sensations due to the ephemeral character of modernity. Based on these standpoints, this text aims to study the relations between technologies, instant and metropolization, that is, between media and urban life. As a priority, we examine the beginning of the 20th Century, in Brasil, which was undergoing the process of modernization based on its republican project. Within this context, we highlight the written press, specially the João do Rio chronicles, whose column “ Cinematographo” at the paper Gazeta de Notícias reveals how the dialogue with the cinema affects discourse and genre production that fixes the everyday instant of transforming Rio de Janeiro. The same analogy with the cinema conditions the travel tales to european cities written by Alcântara Machado for the Jornal do Comércio from São Paulo, in 1925. The urban experience is, then, represented by hibrid narratives that the media presents. This type of written cinema acquires a new meaning

when it is re-articulated in a new material form such as the book .

Keywords: Technologies; instant and modernity; metropolization and urban

experience; printed journalism and cinema; João do Rio and Alcântara

Machado.
Uma filosofia do celular ou os avatares que este meio de comunicação está introduzindo em nossas vidas
Authors: Arrieta Tomás Vasquez
Published: March 2023

Entrevista com Maurizio Ferraris
Reinvenções da resistência juvenil: os estudos culturais e as micropolíticas do cotidiano
Authors: Rüdiger Francisco
Published: March 2023

FREIRE FILHO, João.Rio de Janeiro: Mauad X, 2007, 171 p.
The Influence of Satisfaction with Beauty Leisure Activities on Quality of Life: Focusing on Successful aging Mediators
Authors:   The Korean Society of Beauty and Art, Lee Dong-Hee , Kim Min-Jeong
Published: March 2023

This study attempted to investigate i) the influence of satisfaction with beauty leisure activities on quality of life and successful aging, ii) the effects of successful aging on quality of life and iii) the mediating role of successful aging in relationships between satisfaction with beauty leisure activities and quality of life. For this, a self-administered questionnaire survey was performed against adult women aged 40 or older from across the country from January 5 to February 13, 2022. Among a total of 350 questionnaires distributed, 349 copies were used for final analysis. The collected data were analyzed, using SPSS 26. First, satisfaction with beauty leisure activities had a statistically significant influence on quality of life. Second, satisfaction with beauty leisure activities revealed a statistically significant effect on successful aging. Third, successful aging affected quality of life with statistical significance. Fourth, successful aging showed a mediating effect on satisfaction with beauty leisure activities and quality of life.
The effect of adult women's perception of wellness on their beauty consumption behavioral intentions: Verification of the moderating effect of customer trust and price fairnesshe
Authors:   The Korean Society of Beauty and Art, Kang Hee-Sun , Kim Min-Jeong
Published: March 2023

This study attempted to confirm the moderating effect of customer trust and price fairness with the aim of providing basic data necessary for the development of scalability in the wellness industry beauty field. For this, A survey of 323 Korean adult women in their 20s to 60s who are sensitive to trends was conducted, and the results of analysis using SPSS.26 are as follows: First, wellness had an influence on beauty consumption behavior intention with statistical significance. Second, concerning the moderating effects of customer trust in wellness-beauty consumption behavior intention relationships, when the independent variable ‘wellness’ was controlled, customer trust had a statistically significant influence on beauty consumption behavior intention. When wellness was involved, however, such moderating effects were not found. Third, when wellness was controlled in wellness-beauty consumption behavior intention relationships, the moderating effects of price fairness had a significant effect on beauty consumption behavior intention. However, when wellness was involved, such moderating effects were not observed. Therefore, since customer trust and price fairness are already reflected on wellness-oriented consumption behavior, the intervention of moderating variables could be deemed unnecessary. In other words, those with a high perception of wellness might choose wellness products and services as long as they are good regardless of which company has manufactured and provided them.
Comparative analysis of pretty and sexy makeup: between South Korean and Chinese girl groups
Authors:   The Korean Society of Beauty and Art, Li Lan , Choi Min-Lyoung
Published: March 2023

This study aimed to make a comparative analysis of color and shape in eye and lip makeup between South Korean girl groups with a wide appeal of pretty and sexy image to understand ingredients of South Korean style makeup in order to provide basic data for Chinese girl groups to apply to their makeup. First of all, when it comes to color for pretty image, eye shadow saw orange red or reddish orange have its desired effect, and so do orange on cheeks and red on lips. With regard to shape for pretty image, penciling eyebrows naturally straight and drawing eye lines extended horizontally with no emphasis on the outer corner of the eye to make eyes look long had the much more desired effect. In addition, incurved lips, with cupid’s bow upper lip and lip lines not clear, proved to be effective. In brief, such makeup designs may be what is recommended as an effective option for Chinese girl groups to have their pretty image. Secondly, as far as color for sexy image goes, eye shadow saw orange red or orange enjoy its apposite effect, and so does red purple, red or orange red on cheeks and on lips. As regards shape for sexy image, penciling eyebrows naturally straight and drawing eye lines extended horizontally with an emphasis on the outer corner of the eye to make eyes look long had its desired effect. Besides, out curved lips, with cupid’s bow upper lip and lip lines underscored, turned to work well. In short, this makeup design option can be a good suggestion for Chinese girl groups to have their sexy image.
Core Competency Analysis of Beauty Specialized High School Students
Authors:   The Korean Society of Beauty and Art, Mun Han-Nah , Chon Hae-Jung
Published: March 2023

The purpose of this study is to propose core competencies through an importance-execution analysis (IPA) of core competencies by high school students specializing in beauty, and to provide basic data when designing future beauty curricula and methods. First, as a result of examining the importance and execution of core competencies of high school students specializing in beauty, communication competencies were recognized as important competencies. Second, as a result of examining the difference between the importance and execution of core competencies, self-management competencies were recognized as important competencies. Third, self-management appeared as an area requiring intensive improvement in the IPA matrix. Based on these results, it is considered necessary to develop a curriculum that applies core competency education to prepare students for the future.
Heap leaching. Computer simulation as an alternative technology
Authors: Groznov Ivan N.
Published: March 2023

The article discusses the possibility of reducing environmental risks and resources by finding ways to optimize technology solutions with a computer program that simulates the heap leaching process. It is shown that the main role in the design and operational control plays simulation and an understanding of the structure and movement of the concentration fronts of substances – leaching participants within the heap. Theexamples of process control by conventional technological parameters – density of irrigation, fineness crushing or agglomeration bulk and height of the heap – show the attainability a significant reduction in of leaching time and as a result, reducing consumption of energy, water and sodium cyanide. The latter is a major threat to the environment.
Iron oxide-modified nanoporous geopolymers for arsenic removal from ground water
Authors: Seo Dong-Kyun , Medpelli Dinesh , Sandoval Robert , Sherrill Laurie , Hristovski Kiril
Published: March 2023

Composite materials of hierarchically porous geopolymer and amorphous hydrous ferric oxide were produced and characterized as a new potentially cost-effective arsenic adsorbent. The arsenic removal capabilities of the iron (hydr)oxide (HFO) media were carried out using batch reactor experiments and laboratory scale continuous flow experiments. The Rapid Small-Scale Column Tests (RSSCT) were employed to mimic a scaled up packed bed reactor and the toxicity characteristic leaching procedure (TCLP) test of arsenic adsorbed solid material was carried out to investigate the mechanical robustness of the adsorbent. The best performing media which contained ~20 wt% Fe could remove over 95 g of arsenic per gram of dry media from arsenic only water matric. The role of the high porosity in arsenic adsorption characteristics was further quantified in conjunction with accessibility of the adsorption sites. The new hierarchically porous geopolymer-based composites were shown to be a good candidate for cost-effective removal of arsenic from contaminated water under realistic conditions owing to their favorable adsorption capacity and very low leachability.
Clean and efficient extraction of copper ions and deposition as metal
Authors: Gervasio Dominic F. , Elsentriecy Hassan H. , Jalbout Abraham F.
Published: March 2023

A simple, clean and efficient one-pot process is offered as an alternative to the conventional complex processing presently used to extract copper ions from copper containing materials, like copper concentrate or slag, and to form copper metal. The alternative process uses a eutectic molten salt of potassium chloride, sodium chloride and zinc chloride as the reaction fluid which is recyclable, low in cost, environmentally benign, low melting (melting point 204°), high boiling (vapor pressure is only a few psi at 800°) and chemically, thermally and physically stable. The metal completely dissolves out of copper concentrate or slag in the aerobic eutectic molten chloride salt in a graphite or glassy carbon pot, which serves as a cathode, with a graphite anode, to reduce the metal ions to metal which sinks to the bottom of the graphite pot. The total efficiency forextraction and deposition is virtually 100% as determined by elemental and gravimetric analyses.
Prediction maps of land subsidence caused by groundwater exploitation in Hanoi, Vietnam
Authors: Strokova Lyudmila A. , Phi Hong Thinh
Published: March 2023

The article presents study results of the land subsidence caused by groundwater exploitation in Hanoi, Vietnam. The study includes collection and analysis of data on geology, hydrology, soil properties and settlements observed at 10 monitoring stations as well as models of the time-dependent settlement. The calculated settlements are relatively close to actual monitoring data. The models were done for prediction of the land subsidence at 92 selected points by the finite element method. Prediction maps are made for prediction of the land subsidence in 2020 and 2030. Recommendations are proposed for potential zones of groundwater exploitation in Hanoi.
Enhanced antibacterial activity of streptomycin against some human pathogens using green synthesized silver nanoparticles
Authors: Salar Raj , Kumar Naresh , Sharma Pooja
Published: March 2023

The development of eco-friendly technologies in nanoparticle synthesis is of utmost importance in order to expand their biological horizons. In the present study, bioreduction of AgNO3 into AgNPs using various leaf extracts of Ficus virens is explained. The resulting AgNPs were characterized by UV–vis spectroscopy, dynamic light scattering (DLS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM). Synthesis of AgNPs was confirmed by color change from transparent to brown with maximum absorption at 420 nm due to surface plasmon resonance of AgNPs. X-ray diffraction studies showed that the biosynthesized AgNPs were crystalline in nature, and TEM analysis showed spherical shape of the nanoparticles with size ranging from 4.98 to 29 nm. FTIR study indicates that mainly Ag atoms, and proteins are responsible for stabilizing the silver nanoparticles. The synthesized AgNPs showed significant antibacterial activity against Gram positive and gram negative human bacterial pathogens. The results showed that AgNPs also synergistically enhance (2.02–57.98%) the antibacterial activity of streptomycin, a common antibiotic. With this approach, AgNPs can be used as a new generation of antimicrobial agents for successful development of drug delivery.
Simultaneous resource recovery and ammonia volatilization minimization in animal husbandry and agriculture
Authors: Ganesapillai Mahesh , Desai Karan , Simha Prithvi , Ahmed Tabrez , Sharma Yash
Published: March 2023

The study demonstrates that the minimization of ammonia volatilization and urea recovery could be coupled through the use of physical adsorption processes in continuous packed-bed columns. The potential of using microwave activated coconut shell based activated carbon toward the recovery of urea from cattle urine was investigated. The prepared carbon was immobilized onto etched glass beads to investigate the effect ofinitial concentration, flow rate and size of carbon support in a continuous, down-flow mode packed column. Further, to describe the sorption behavior, the experimental data were tested against different kinetic models. The analysis of the breakthrough curves allowed identification of the favorable operating parameters as: sorbate flow (8 L·h−1), initial urea concentration (60%) and glass bead support size (ϕ 1.5 cm). An equilibriumsorption of 802.8 mg·g−1 and up to 80% urea recovery was observed. Regeneration studies allowed for nearly 95% urea recovery with sorbent capacity decreasing by 5% over seven cycles of sorption/desorption.
Microwave plasma torch for processing hydrocarbon gases
Authors: Zherlitsyn Alexey G. , Shiyan Vladimir , Demchenko Pavel
Published: March 2023

We designed and developed an ultrahigh-frequency (microwave) plasma torch with a combined (nitrogen, methane) plasma-forming environment, and microwave output of up to 2 kW, continuously. We demonstrate the possibility of using it in order to process natural and associated petroleum (APG) gas into valuable products (hydrogen and carbon nanomaterial CNM) with up to 70% efficiency. Based on the developed microwave plasma torch, we developed an apparatus capable of converting hydrocarbon feedstock at a capacity of 50 g/h yielding CNM and hydrogen of up to 70 vol. %. In its mobile small-tonnage version, this technology can be used on gas-condensate fields.
Synthesis of silver nanoparticles using fresh bark of Pongamia pinnata and characterization of its antibacterial activity against gram positive and gram negative pathogens
Authors: Rajeshkumar S
Published: March 2023

The recent advancements in techniques for synthesis of zerovalent nanoparticles using green method show a clean, simple, less toxic and environmentally benign process. In this communication, silver nanoparticles were synthesized and characterized using the fresh bark extract of Pongamia pinnata. The bark extract was exposed to silver ions and the resultant biosynthesized silver nanoparticles characterized by UV–vis spectrophotometry shows the surface plasmon resonance band at 420 nm. X-ray diffraction spectrum shows crystalline structure while scanning electron microscope and transmission electron microscope analyses revealed the polydisperse distribution and particle size of 5–55 nm. The elemental analysis shows strong signal at 3 keV that corresponds to silver ions and confirms the presence of metallic silver. The antibacterial activity of silver nanoparticles was determined by agar well diffusion method against gram positive and gram negative bacteria. Maximum andminimum zones of inhibition were noted against Klebsiella planticola (15 mm) and Staphylococcus aureus (13 mm), respectively. This study reveals that silver nanoparticles possess good antibacterial activity at 100 μg/ml concentration.
Arenediazonium salts transformations in water media: Coming round to origins
Authors: Postnikov Pavel S. , Trusova Marina , Kutonova Ksenia , Filimonov Viktor
Published: March 2023

Aromatic diazonium salts belong to an important class of organic compounds. The chemistry of these compounds has been originally developedin aqueous media, but then chemists focused on new synthetic methods that utilize reactions of diazonium salts in organic solvents. However, according to the principles of green chemistry and resource-efficient technologies, the use of organic solvents should be avoided. This review summarizes new trends of diazonium chemistry in aqueous media that satisfy requirements of green chemistry and sustainable technology.
Obtaining the fine-grained silicon carbide, used in the synthesis of construction ceramics
Authors: Karelin Vladimir A. , Strashko Alexandr
Published: March 2023

Silicon carbide is used in the production of construction and temperature-resistant goods, capable of withstanding high mechanical and thermal loads. During recent times, silicon carbide has been frequently used in the electronics industry. Since sintered silicon carbide has increasingly been used as a replacement for metal components of various devices, the process of obtaining compact goods from silicon powder has become thedefining factor in the technology used for its synthesis. The selection of conditions in which the sintering is conducted depends on granulometric structure, the form and the surface condition of the initial powder. The work consists of the synthesis of silicon carbide powder using the purified form of metallurgical silicon powder and soot. The qualities of testing samples were studied, where silicon carbide was obtained using establishedtechnology, from mechanically activated elementary, fine-grained silicon and soot, by pyrolytic synthesis. It was demonstrated that synthesis produces highly pure silicon carbide powder, (α- and β-phases) with a granulometric composition that allowed subsequent sintering to produce high quality compact goods. It was established that the content of silica in synthesized silicon carbide powder does not exceed 1–2% of the totalmass.
Oxidative fluorination of iridium metal for urban mining: Kinetic studies
Authors: Ivlev Sergei I. , Malin Artem , Sakhnevich Bogdan , Ostvald Roman , Sobolev Vasiliy , Shagalov Vladimir
Published: March 2023

The process of oxidative fluorination of a compact iridium metal has been studied. For this purpose, tetrafluoridobromates(III) of alkali and alkaline-earth metals were chosen as oxidizing agents with numerous advantages. The main results of this work include the kinetic dependencies for the two following processes: 1) interaction of iridium with molten potassium tetrafluoridobromate; and 2) interaction of iridium with a solutionof potassium tetrafluoridobromate in liquid bromine trifluoride. In both cases it has been found out that iridium can be transformed into its soluble fluorinated derivative; the reaction with molten potassium tetrafluoridobromate proceeds almost 50 times faster (in comparison to the interaction in BrF3 solution) and can be potentially applied for the practical purposes.
In search of efficient catalysts and appropriate reaction conditions for gas phase nitration of benzene
Authors: Vedyagin Alexey A. , Koskin Anton , Mishakov Ilya
Published: March 2023

The present paper is dedicated to the development of a method for the nitrobenzene production using solid acid catalysts, as an alternative to industrial nitration, based on a mixture of concentrated acids. The influence of key parameters of the nitration process (temperature, reagent flow rate, nitrating agent concentration etc.) on the conversion of the initial substrate, the degree of decomposition of nitric acid and the quantity ofresulting oxygenates was studied. Recommendations for the selection of effective catalytic systems (high content of Brønsted acid sites with Ho < −4, high specific surface and resistance to HNO3) were developed and the best conditions for process reactions (temperature 200 °C, aqueous solution of nitric acid with concentration of 30 wt%, “nitric acid:benzene” ratio = 0.76) were found. A method for regeneration of the catalytic activity without unloading the catalyst was proposed. As an example, MoO3/SiO2 sample was tested in a dual-mode nitration/regeneration process, which allowed us to increase the flow rates of reagents and obtain catalyst efficiency of up to STY = 4.09 g/(gcat · h). Several of the most promising catalysts (MoO3/SiO2, WO3/ZrO2 and Nafion/support composite) for the process were tested in identical conditions.
Sapropel-based supports as novel macroporous carbon-mineral adsorbents for enzymatic active substances
Authors: Kovalenko Galina A. , Maksimov Alexander , Perminova Larisa , Rudina Nina , Maksimova Yulia
Published: March 2023

The novel macroporous carbon-mineral Sapropel supports were obtained from lacustrine sapropel silts of freshwater lakes by annealing of semi-coke in the inert atmosphere. The specific surface area of these supports varied from 10 to 100 m2/g, the total pore volume from 0.3 cm3/g till 1.6 cm3/g; macropores of diameters more than 2 μm were predominating. The Sapropel supports were studied for the adsorption/adhesion ofenzymatic active substances, such as whole bacterial cells, and invertase-active fully destroyed baker’s yeast cells (autolysates), and purified enzyme nitrilase. The heterogeneous biocatalysts with required enzymatic activity were prepared and their properties were studied in the corresponding bioconversion processes. The invertase-active biocatalysts exhibited high activity, 120–135 U/g, and stability; the half-times of theirinactivation (t½) were more than 1000 h in the continuous process of sucrose hydrolysis at 50 °C. The nitrilase-active biocatalysts for “green” chemistry of nitriles possessed high activity, 350–500 U/g, and the t½ were estimated to be more than 100 h in the periodic process of hydration of acrylonitrile to acrylic acid at 22 °C.
Phytochemical analysis, phenolic compounds, condensed tannin content and antioxidant potential in Marwa (Origanum majorana) seed extracts
Authors: Kaur Pinderpal , Dhull Sanju Balla , Purewal Sukhvinder Singh
Published: March 2023

Antioxidant and free radical scavenging potential of seed extracts of Origanum majorana was evaluated and correlated with total phenoliccontent (TPC) and condensed tannin content (CTC). Ethanol, methanol, acetone and chloroform were used to extract bioactive compounds fromseeds of Origanum majorana at 45 °C for 45 minutes. As compared to other solvents, methanol seems to be an important extraction solvent, asmaximum amount of bioactive compounds (1.18 mg GAE/g dwb) with antioxidant potential was observed in methanolic extract. Total phenoliccompounds in seeds were evaluated using Folin–Ciocalteu reagent (FC reagent) method. Total phenolic compounds in seeds were in the range of0.10–1.18 mg gallic acid equivalent/g dry weight basis (mg GAE/g dwb). HPLC study confirmed the presence of catechin, cinnamic acid, gallicacid and ascorbic acid. The antioxidant potential in seed extracts of Origanum majorana confirmed the presence of nutraceutical properties in themwhich will further be helpful in the preparation of various functional food products.
Techno-economic analysis of Smart Grid pilot project- Puducherry
Authors: Daniel S. Arul , Kappagantu Ramakrishna , Suresh N. S.
Published: March 2023

Smart Grid (SG) a well-known concept being rapidly introduced in the power industry. New transformation of Indian power network has begun with 14 SG pilot projects across the nation. One of such projects has been successfully commissioned in Puducherry. The motive of this research work is to analyze the techno-economic aspects of a smart distribution network before being implemented nation-wide the study case facilitatingefficient planning and deployment of technology. This paper presents techno-economic analysis of Smart Grid via a case study of Puducherry pilot project. Covered in this paper are different components of investment which convey an idea about services and their proposition as well as technical advancements with their benefits. This paper discusses the gain in terms of energy and money saving through different smart technical tools. Payback analysis explains how investment in smart distribution network is justified.
Resource-efficient technology to produce 4-aminodiphenylamine
Authors: Bochkarev Valery V. , Soroka Lyudmila , Bashkin James
Published: March 2023

A critical analysis of the existing and emerging methods for preparation of 4-aminodiphenylamine has been conducted. It is noted that, in economic and environmental terms, the promising methods are based on condensation of aniline with nitrobenzene in an alkaline medium, followed by hydrogenation of the resulting intermediates. Using the above method for industrial production of 4-ADPA will help eliminateprincipal shortcomings inherent in the existing industrial methods: reduce unit operations of the process, use more accessible, inexpensive raw materials, increase product yield, eliminate formation of carcinogenic substances, significantly decrease the formation of waste products and, most importantly, decrease the volume of waste water. The most promising methods for industrial production are recent discoveries that use heterogeneous catalysts during condensation of aniline with nitrobenzene, e.g., zeolite ZSM-5 treated with tetramethylammonium hydroxide or highly basic anions which considerably simplify production technology and process control, lower costs and comply with strict environmental requirements.
Improved controller design for two-input-two-output (TITO) unstable processes
Authors: Rao Ambati Seshagiri , Raviteja K. , Dasari Purushottama Rao
Published: March 2023

Controller design for unstable processes is relatively difficult when compared to stable processes. The complexity increases further formultivariable unstable processes. In this work, simplified tuning rules are proposed to design PID controller for unstable multivariable processes.Decouplers are applied to make the loops independent and diagonal elements of equivalent transfer function are used to design controllers. For this,the decoupler design procedure proposed by Hazarika and Chidambaram [10] is used. Two theoretical examples of TITO unstable processes withtime delays are considered for simulation. Comparative analysis has been carried out with the recently reported methods in the literature andobserved that the proposed method provides improved closed loop performances. Robustness studies are also carried out with various perturbationsin the processes.
Screening of polymeric membranes for membrane assisted deacidification of sardine oil
Authors: Charanyaa Sampath , Chandrasekar Vaisali , Iyyaswami Regupathi
Published: March 2023

The diversification in fish oil use and the need for softer processing demand new oil refining processes. In considering the advantages ofmembrane technology, three different membranes (polyamide (PA), polytetrafluoroethylene (PTFE) and polyethersulfone (PES)) were used in thisparticular study. Preliminary results in the separation of free fatty acids (FFA) from glycerides of sardine oil/ethanol mixtures using a single deadend microfiltration mode have been reported here. The influence of experimental factors like pressure and oil/ethanol ratios (w/v) on the permeateflux and the reduction of FFA (%) in the permeate was studied. PTFE membrane showed promising results in terms of residual FFA in permeate(%), % oil loss (15.12%, 5.45%) as compared to PA (20.50%, 6.66%) and PES membranes (20.60%, 8.92%). PA membrane showed a higher fluxof 4.4 L/m2/h, followed by PTFE 3.34 L/m2/h and PES, 1.19 L/m2/h at 3.5 bar trans-membrane pressure. These results showed that using PTFEmembrane could be an ideal strategy for the membrane assisted deacidification of sardine oil using solvents.
Enhancement of esterification conversion using pervaporation membrane reactor
Authors: Rathod Ajit , Wasewar Kailas , Chandane Vishal
Published: March 2023

In the present study, the esterification reaction of propionic acid with isobutyl alcohol to produce isobutyl propionate and water was studied. The performance of esterification reaction was compared by using the batch process and the pervaporation assisted hybrid process which performs the reaction and separation simultaneously. A polyvinyl alcohol–polyethersulphone (PVA–PES) hydrophilic polymeric membrane was used in the study to separate water and also to shift the equilibrium. The influence of process parameters such as catalyst loading, molar ratio of acid to alcohol, reaction temperature and ratio of membrane area to initial reaction volume (S/V) was studied. The results showed that the pervaporation assisted esterification process gave more conversion than the batch process of esterification. The membrane showed high selectivity to the removal of water in the propionic acid, isobutyl alcohol, isobutyl propionate and water mixture. Moreover, the conversion of propionic acid was enhanced by enhancing the catalyst amount, molar ratio of acid to alcohol, reaction temperature and S/V ratio.
Modeling the adsorption of benzeneacetic acid on CaO2 nanoparticles using artificial neural network
Authors: Wasewar Kailas , Madan Sapana S. , Pandharipande Shekhar
Published: March 2023

The present work reported a method for removal of benzeneacetic acid from water solution using CaO2 nanoparticle as adsorbent and modelingthe adsorption process using artificial neural network (ANN). CaO2 nanoparticles were synthesized by a chemical precipitation technique. Thecharacterization and confirmation of nanoparticles have been done by using different techniques such as X-ray powder diffraction (XRD), highresolution field emission scanning electron microscope (HR-FESEM),transmittance electron microscopy (TEM) and high-resolution TEM(HRTEM) analysis. ANN model was developed by using elite-ANN software. The network was trained using experimental data at optimumtemperature and time with different CaO2 nanoparticle dosage (0.002–0.05 g) and initial benzeneacetic acid concentration (0.03–0.099 mol/L).Root mean square error (RMS) of 3.432, average percentage error (APE) of 5.813 and coefficient of determination (R2) of 0.989 were found forprediction and modeling of benzeneacetic acid removal. The trained artificial neural network is employed to predict the output of the given set ofinput parameters. The single-stage batch adsorber design of the adsorption of benzeneacetic acid onto CaO2 nanoparticles has been studied withwell fitted Langmuir isotherm equation which is homogeneous and has monolayer sorption capacity.