Characterization Research Articles

In Situ Raman Spectra Characterization of Zonal Arsenic-Bearing Pyrite and Arsenopyrite in the Baiyunpu Gold Deposit, Hunan

In Situ Raman Spectra Characterization of Zonal Arsenic-Bearing Pyrite and Arsenopyrite in the Baiyunpu Gold Deposit, Hunan

Caste in contemporary Bollywood movies: An analysis of the portrayal of characters

Abstract Caste, an integral part of the Indian social system, has extensively influenced all walks of life. The media is not an exception for the persuasion of caste. The depiction of caste as a social reality is central to Indian cinema since its early years. However, there is a lack of studies examining the depiction of the caste system in mainstream Bollywood movies. In the present study, we have critically analyzed mainstream commercial Bollywood movies to understand: (i) How it depicts the caste system? (ii) What are the explicit or implicit indicators of castes in mainstream movies? (iii) How they reinforce or validate existing caste stereotypes? Using certain inclusion and exclusion criteria, 22 highest-grossing movies of the period 2014–2017 were selected. Analyses of the selected movies suggested that the majority of the lead characters carry surnames representing dominant castes, and the portrayal of characters was made in accordance with the traditional caste-based occupations. Further, the characterization is reinstating and upholding the dominant caste values. The narratives of the Dalits and backward castes are neglected in mainstream cinema. The subalternity appended with them has intentionally hidden, and these castes are treated unworthy to the cinematic portrayal.

Synthesis and Characterization of CoFe2O4 and CuFe2O4 Composited with Hematite by Impregnation Method for Removing Organic Pollutants

Synthesis and Characterization of CoFe2O4 and CuFe2O4 Composited with Hematite by Impregnation Method for Removing Organic Pollutants

The Transmuted Topp-Leone G Family of Distributions: Theory, Characterizations and Applications

In this paper, we introduce a new family of continuous distributions called the transmuted Topp-Leone G family which extends the transmuted class pioneered by Shaw and Buckley (2007). Some of its mathematical properties including probability weighted moments, mo- ments, generating functions, order statistics, incomplete moments, mean deviations, stress- strength model, moment of residual and reversed residual life are studied. Some useful char- acterizations results based on two truncated moments as well as based on hazard function are presented. The maximum likelihood method is used to estimate its parameters. The Monte Carlo simulation is used for assessing the performance of the maximum likelihood estimators. The usefulness of the new model is illustrated by means of two real data set.

Sensor Control and Characterization [Advertisement

Sensor Control and Characterization [Advertisement

A MACROFORM ANALYSIS TO DESCRIBE THE CITY MORPHOLOGICAL COMPACTNESS FACING THE URBAN SPRAWL PHENOMENON - CASE OF BEJAIA CITY -

Describing the morphological reality of urban areas is essential for any the city’s sustainability project. Through a comparative analysis based on a series of indices and their confrontation according to the multivariate principal component analysis, we have tried to evaluate from the view point of urban sprawl, the morphological compactness of the Algerian coastal Bejaia town. The latter is known to be characterised by physical and natural constraints which influence spatial growth and the process of urban development. The main objective of this article is to establish the macroforms classification that constitute Bejaia city. The configuration analysis’s results of its urban spots have shown an excessive spread of the agglomeration on the Bejaoui coast, which negatively impacts the city’s sustainability.

Performance prediction of flat sheet commercial nanofiltration membrane using Donnan-Steric Pore Model

The rejection of sodium chloride (NaCl) and calcium chloride (CaCl2) single salt solutions were carried out for commercial nanofiltration NFDK membrane. Results showed that the NFDK membrane had a negative surface charge and had a higher observed rejection of 93.65% for calcium (Ca2+) ion and 78.27% for sodium (Na+) ions. Prediction of rejection for aqueous solutions of both salts was made using Donnan Steric Pore Model based on Extended Nernst-Planck Equation in addition to concentration polarization film theory. A MATLAB program was developed to execute the model calculations. Absolute Average Relative Error (% AARE) was found below 5% for real rejection of the NFDK membrane. This research could be used successfully to assess the membrane characterization parameter using a proposed procedure which can reduce the number of experiments.

Caracterização mineralógica, química e geotécnica do lodo da estação de tratamento de água Taiaçupeba

Os lodos de estações de tratamento de água (LETA’s) são resíduos provenientes da lavagem de filtros e decantadores. No Brasil, convive-se com a prática de destinação ambientalmente inadequada do lodo. Entretanto, tem havido a procura de soluções mais sustentáveis, como o seu reaproveitamento misturado a solos naturais em obras geotécnicas, o que requer a caracterização do material. Neste trabalho foram investigadas as características químicas, mineralógicas e geotécnicas do LETA Taiaçupeba, localizada no município de Suzano, Brasil. O lodo tem grande quantidade de matéria amorfa e teor de matéria orgânica de 15,5%, é ácido (pH = 6,4) e apresenta capacidade de troca catiônica mais elevada que a maioria dos solos tropicais brasileiros (CTC = 73,3 mmolc.kg·¹). A predominância da matéria orgânica, a reduzida presença de minerais, a presença de sais metálicos e polímeros e o alto teor de umidade dificultam a execução e interpretação dos ensaios geotécnicos, particularmente a análise granulométrica. Alguns defloculantes foram testados e não conseguiram promover a separação de partículas na sedimentação. Por outro, lado, a granulometria a laser indicou mais de 95% de finos. Foi obtida massa específica dos grãos de 2,42 g/cm³, limite de liquidez de 536%, limite de plasticidade de 236% e o material foi classificado como silte orgânico.

Characterizations of ITBM-Computability. II

Characterizations of ITBM-Computability. II

Incidence and characterization of cassava mosaic viruses in improved and local cultivars in Sierra Leone

In Sub-Sahara Africa, Cassava Mosaic Disease (CMD) is the major important viral disease of cassava which threatens production, livelihoods and food security. Frequently CMD is due to the Africa Cassava Mosaic Virus (ACMV), East African Cassava Mosaic Virus (EACMV) and the Ugandan strain of the East African virus (EACMV-UG). The present study investigated the prevalence of these three viruses in 27 cultivars (three improved and 24 local) of cassava grown across all key agro-ecological zones and regions in Sierra Leone. Leaf samples from each of these varieties with symptoms as well as asymptomatic ones were harvested from a clonal garden established on the Njala University Campus. Deoxyribonucleic acid (DNA) extracted from these samples was assessed with Marker Assisted Selection (MAS) for ACMV, EACMV and EACMV-UG using polymerase chain reaction (PCR) and primers designed to amplify replica regions of the DNA-A components of these viruses. The results revealed the ACMV is very common (26 out of 27 samples), while EACMV and EACMV-UG are less common (3 out of 27). Samples with EACMV-UG also had ACMV. These findings are of importance to future breeding programs for resistance to CMD with the aim of producing multiple viral resistant clones for increased food security in the country. Key words: Cassava, DNA, characterization, mosaic viruses, incidence, varieties, Sierra Leone.

Phenotypic and Genetic Characterization of Three Different Types of Dangyooza (Citrus grandis), Korean Landrace Citrus

Phenotypic and Genetic Characterization of Three Different Types of Dangyooza (Citrus grandis), Korean Landrace Citrus

On the Characterization of Paths

On the Characterization of Paths

Preparation and Characterization of PTFE/Aramid Nonwoven for Bag Filter Media

Preparation and Characterization of PTFE/Aramid Nonwoven for Bag Filter Media

Influence of processed Halyomorpha halys bugs on the aroma and taste of 'Chardonnay' and 'Merlot' musts and wines

Native to East Asia, the invasive brown marmorated stink bug (Halyomorpha halys) was accidentally introduced into Switzerland around 2004 and is now spreading all over Europe. This pentatomid is highly polyphagous and attacks vegetables, field and tree crops as well as soft fruits. Moreover, all development stages of H. halys are found in vineyards, suggesting that grapevine is also a host plant for this insect. Nonetheless, its actual effects on European wine production is unclear. As such, we studied the impact of processed H. halys on the aroma and taste of grape musts and wines. We artificially contaminated 'Chardonnay' and 'Merlot' grapes with up to ten H. halys nymphs and adults per kg grapes directly before the vintage was crushed. In the freshly pressed must, the addition of 1 living bug/kg grapes did not affect the olfactory sensation of the 'Chardonnay' juice. However, the aroma and taste of 'Chardonnay' and 'Merlot' musts contaminated with 3 to 10 H. halys individuals/kg grapes could be distinguished from the uncontaminated control juices and were perceived as vegetal and woody. Yet after bottling, the different wines with 0 to 10 H. halys individuals/kg grapes could no longer be differentiated from each other in 2-out-of-5 discrimination tests. Amongst 17 rated organoleptic descriptors to characterise the sensory profile of the four 'Chardonnay' wines, only two showed significant differences; the colour intensity increased and wines’ finesse decreased with the number of added bugs. For the three 'Merlot' wines, none of the 21 organoleptic descriptors of the sensory profiles differed significantly. In addition, winegrowers did not dislike H. halys contaminated 'Chardonnay' and 'Merlot' wines compared to their uncontaminated controls one year after bottling. It therefore seems that the molecules responsible for the off-flavours in contaminated musts volatilise to a large part during the fermentation process. Our results consequently indicate that a contamination of the vintage with H. halys has the potential to alter the quality of grape musts and potentially grape juices but that there is little risk for influencing the taste of processed wines. Nonetheless, we recommend monitoring the development of H. halys in vineyards in order to anticipate quantitative and qualitative problems at harvest.

Characterization of FC-groups where permutability condition is transitive

We consider extension of important characteristics of finite solvable PT-groups to the class of periodic locally solvable FC-groups.

Characterization and evaluation of functional polymer microspheres with core-shell structure

Characterization and evaluation of functional polymer microspheres with core-shell structure

Synthesis of Magnetic Novel Hybrid Nanocomposite (Fe3O4@SiO2/Activated carbon( by a Green method and Evaluation of Its Antibacterial Potential

Inorganic antibacterial nanoagents have more advantages compared to popularly organic agents due to chemical stability, thermal resistance, immunity and long-term activity. In this study, a magnetically hybrid nanocomposite was prepared from the Nigella sativa oil waste as organic matrix in a green approach. The homogeneous distribution of core-shell Fe3O4@SiO2 nanoparticles on the activated carbon surface was carried out with a simple chemical method. Characterization of the synthesized nanocomposite was performed by different analysis techniques such as scanning electron microscopy–energy dispersive spectroscopy (EDX), scanning electron microscopy (SEM), x-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET) surface area analysis. The antibacterial activities of the prepared nanoparticles against gram-positive and gram-negative bacteria were investigated and the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) values compared to imipenem as standard antibiotic. The effects of temperature, time and ratio of the activated carbon to Fe3O4@SiO2 on the MIC and MBC values of the prepared nanocomposites were investigated. The obtained results reveal the substantial role of all of these parameters in the gram-positive antibacterial properties, especially for S. agalactiae bacteria. The results show that the new proposed nanocomposite could be an alternative for an effective filter against gram-positive bacteria alongside having magnetic properties.

Characterization of shock wave signatures at millimetre wavelengths from Bifrost simulations: Shock wave signatures at mm-wavelengths

Characterization of shock wave signatures at millimetre wavelengths from Bifrost simulations: Shock wave signatures at mm-wavelengths

Synthesis and characterization of new β-D-C-glycosides analogous to curcuminoids

Synthesis and characterization of new β-D-C-glycosides analogous to curcuminoids

Influência dos programas Pró-Saúde e PET-Saúde no processo de trabalho da Atenção Básica na perspectiva dos preceptores

Reorienting the training of health professionals to meet the needs of the new profile of workers desired by the Brazilian public health system (SUS) is a challenge for both the Ministry of Health and the Ministry of Education. To overcome this challenge, both ministries signed a partnership and instituted the National Program for the Reorientation of Professional Training in Health (Pro-Saude) and the Education Through Work in Health Program (PET-Saude). The aim of this study was to analyze the influence of Pro and PET-Saude on the primary care work process from the perspective of preceptors. This is a cross-sectional study with 43 preceptors, with or without financial assistance, from nine of the Family Health Centers participating in the programs. The instrument for data collection was divided into two parts, the first composed of demographic, academic, and professional variables, and the second by a Likert scale with 32 statements distributed across four dimensions. The instrument's content validation considered semantic, cultural, and conceptual equivalences, attribution of points (from 1 to 4), and randomization of assertions. The score was based on three intervals: from 1 to 1.99; 2 to 2.99; 3 to 4: danger, alert and comfort zones, respectively. Dispersion through linear correlation showed a loss of four assertions (12.5%) and a reliability of 0.92. Excel was used for data entry and analysis. The results indicated that the preceptors had a satisfactory perception in relation to the concept and characterization of the work process, however, they were more critical in the answers about the influence of Pro and PET-Saude on primary care. The practice of the preceptorship of Pro and PET-Saude is a valuable experience, with many possibilities and challenges. Doctors, teachers, preceptors with financial assistance, and those with more than three years in this activity had perceptions in the comfort zone, regarding the influence of Pro and PET-Saude and the changes in the work process in primary care, and in the teaching-service-community partnership. Keywords: Preceptorship. Training human resources. Primary health care.