bluuebunny/crossref_metadata_2025_split huggingface dataset:
Electrochemical analysis of the fabricated cell with PVA based silver ion conducting Gel Polymer Electrolyte
Authors: Parthiban V. , Sundari G. Sunita , C.V.S Brahmananda Rao , Erothu Harikrishna 
Published: November 2022

Abstract

Electrochemical analysis of Silver ion conducting Gel polymer Electrolyte (Ag-GPE) was done with Linear sweep Voltammetry (LSV) and Cyclic Voltammetry (CV). The silver ion conducting GPE was prepared by solution casting technique with PVA as polymer, AgBF4 as salt and de-ionized water as solvent. The synthesized films were-characterized using XRD and-FTIR to study the structural and functional characteristics of GPE and confirmed the complexation between polymer and salt. The optical properties of the Ag-GPE sample was studied by UV-Vis spectrophotometer. The highest ionic conductivity, 1.28 × 10− 5 Scm-1 was observed for Ag-GPE sample (60:40 wt%) by AC impedance. Dielectric studies of Ag-GPE samples were done from AC impedance data. LSV used to analyze the electrochemical working voltage of the synthesized material, which is found to be 1.1V. CV studies were done for highest ion conducting GPE (60:40 wt%) by fabricating two different cells. The first cell SS/GPE/Ag showed good stability up to 25 cycles and the second cell Ag/GPE/Zn was analysed for the re-dox reaction of the cell which shows the electrochemical behaviour of battery and confirmed that, the synthesized material can be used for energy storage applications.
DCNR: A Transfer Learning Approach for Detecting and Classifying Non-FunctionalRequirements from User Reviews
Authors: Tasnia Khandaker Rifah , Mehjabin Nafisa , Aziz Md. Ashif , Kamal Abu Raihan Mostofa , Khatun Afrina , Lota Lutfun Nahar 
Published: November 2022

Abstract
With the increasing popularity of the web and mobile devices, mobile applications (Apps) are now used for a wide range of purposes. As mobile experiences are becoming more user-centered, system design is entirely dependent on who is using the app. For the success of the application, developers need to be aware of the users’ concerns and expectations of the application. Existing research has demonstrated that user evaluations often raise issues with an app’s usability, dependability, performance, or aesthetic appeal. These issues should be seen as Non-Functional Requirements (NFRs) in order to develop an application that meets users’ needs in all aspects. Since user reviews are often short, unstructured, and written in informal language, it might be hard to label them according to the standards of NFRs. In this context, our paper proposes a DCNR (Detection and Classification of Non-functional Requirements) approach that fine-tunes transformer language models (BERT, RoBERTa) to perform the classification tasks on our labeled UR-NFR dataset. In this approach, user reviews that contain requirements are identified automatically and further classified into seven different categories of NFRs (Usability, Look and Feel, Reliability, Portability, Performance, Maintainability, and Functional Suitability). Comparing the experimental results using existing machine learning techniques (Naive Bayes, BoW, TF-IDF), we found that our DCNR outperforms the existing approach. Among the two transformer-based language models incorporated by DCNR method, RoBERTa achieved better results than BERT in binary requirement and non-requirement classification, as well as in the multiclass classification of NFRs. In the binary classification and the multiclass classification of NFRs, the RoBERTa model has attained f1 scores of up to 88.2% and 70.7%, respectively. Overall, it can be concluded from the findings that transfer learning has a promising effect on improving the performance of our proposed approach.
EPCAM+CD45+ cells in ascitic fluid of patients with ovarian cancer: a relationship with tumor marker levels and tumor grade
Authors: Kozik A. V. , Kaigorodova E. V. , Grishchenko M. Yu. , Vtorushin S. V. , Chernyshova A. L. 
Published: November 2022

Purpose of the study: to assess the relationship between atypical/hybrid forms of EpCAM+CD45+ cells in ascitic fluid of ovarian cancer patients and the levels of cancer markers, such as CA125 and HE4, and the tumor grade. Material and methods. The study included 48 patients with newly diagnosed ovarian cancer (42 patients with stage Ic–IV ovarian cancer and 6 patients with borderline ovarian tumors (Bots). The age of the patients ranged from 36 to 76 years. the study material included ascitic fluid and blood samples. the presence of atypical/hybrid forms of EpCAM+CD45+ cells in ascitic fluid was identified by laser multicolor flow cytometry. The levels of CA125 and HE4 markers were measured by ELISA. Results. The number of EpCAM+CD45+ cells in ascitic fluid of patients with serous ovarian carcinoma was 1.02 (0.30; 2.68) cells/µl (0.55 (0.03; 4.51) cells/µl in patients with low-grade serous carcinoma (LGSC) and 1.36 (0.41; 2.68) cells/µl in patients with high-grade serous carcinoma (HGSC). The number of EpCAM+CD45+ cells in ascitic fluid of serous ovarian carcinoma was shown to have a strong correlation with СА125 and HE4 levels in blood serum (R=0.60; р<0.01 and R=0.34; р=0.05, respectively). In the LGSC group, there was a strong direct correlation between the number of EpCAM+CD45+ cells in ascitic fluid and the levels of CA125 and HE4 markers in blood serum (R=0.93; p<0.01 and R=0.68; p=0.03, respectively). No differences in the levels of EpCAM+CD45+ cells in ascitic fluid and CA125/ HE4 markers in blood serum between patients with HGSC and LGSC were found. the levels of atypical/hybrid forms of cells in ascitic fluid and CA125/ HE4 markers in blood serum were significantly lower in patients with Bots than in patients with serous ovarian carcinoma (p=0.02 for EpCAM+CD45+ cells and p<0.01 for СА125/ HE4 levels). Conclusion. The relationship between the number of EpCAM+CD45+ cells in ascitic fluid and the levels of CA125 and HE4 markers in blood serum of patients with serous ovarian carcinoma was found. However, no differences in the levels of EpCAM+CD45+ cells in ascitic fluid and CA125/ HE4 markersin blood serum between patients with HGSC and LGSC were observed.
Problemáticas bioéticas y biojurídicas asociadas a los proyectos de investigación
Authors: Arzuaga-Salazar María Angélica , Naranjo-Ramírez Gloria Patricia , Zuleta-Salas Guillermo León 
Published: November 2022

Toda investigación debe estar orientada por principios Bioéticos. Investigación cualitativa, con enfoque de estudio de caso, con el objetivo analizar las problemáticas Bioéticas y Biojurídicas asociadas a los proyectos de investigación identificadas por los Comités de Ética de Investigación en salud en humanos. Participaron integrantes de Comités de Ética de Investigación en salud en humanos de Medellín y su Área Metropolitana; fueron realizadas entrevistas semiestructuradas, seguidas de análisis de contenido. Emergieron las siguientes problemáticas: debilidades en la validez científica y argumentación bioética de los protocolos de investigación; imprecisión de roles de los investigadores; vacíos y desactualización de la normatividad colombiana; inadecuada valoración del riesgo, de la beneficencia y no maleficencia para los participantes; procesos de consentimientos informados inadecuados; coberturas inadecuadas de las pólizas; conflictos de interés de investigadores y de integrantes de los Comités de Ética de Investigación en salud en humanos. Se concluye que los Comités de Ética de Investigación en salud en humanos evalúan los proyectos buscando el equilibrio entre las políticas de investigación y los derechos de los participantes. El investigador debe reflexionar sobre los aspectos bioéticos y biojurídicos, prever situaciones eventuales en la investigación y las acciones para prevenirlas o resolverlas, aplicando el principio de precaución.
Processing opportunities and challenges for plant-based proteins
Authors:   Iowa State University (ISU), Lamsal Buddhi , Byanju Bibek ,   Iowa State University
Published: November 2022

With demand for nutritious and functional protein-rich ingredients rising, there are opportunities to acquire protein from new/ emerging sources, as well as from coproducts of agro-food industry. Some of these sources include plants/ seeds and oilseeds, microalgae, fungi, cell/ microbial, and insect protein; however, each of these may have their own unique challenges in terms of extraction, nutritional profile, bioactivity, techno-functional properties, safety, allergenicity as well as in food and feed applications. Some of the challenges for plant/seed proteins are that they have relatively lower extraction yields and relatively inferior functional/ nutritional aspects, including off-flavor and digestibility. Protein quality in defatted meals is also impacted by harsh oil removal process, which is further exacerbated by the downstream protein extraction and isolation conditions (pH, ionic strength, temperature etc.) resulting in protein denaturation, aggregation, and potential loss of functionality. Also, plant proteins have other issues such as off-flavors, astringency/ taste, allergenicity, and antinutritional factors that reduce mineral bioavailability and protein absorption. Various food processing techniques can be used to reduce/ remove these aspects of protein ingredients; fermentation, germination, heating, enzymatic, or acidic treatment, membrane separation etc. have been employed to improve protein purity and quality. The choice of processing technology, even for oil removal from oilseed, impacts protein extraction and quality. For example, protein recovered from meal/ fibers of aqueous oil extraction were of better quality than from desolventized meals. Emerging physical and biochemical processes, such as high-power sonication, extrusion, high-pressure processing, microwave, pulsed electric field, enzymatic pretreatment (pectinase, proteinase, carbohydrase), and fermentation are reported to increase protein extraction efficiency, removing/ reducing allergenicity, and modify functional characteristics. This presentation will discuss such processing challenges and opportunities for plant-based proteins for extraction and downstream isolation, as well as their impact on important functional characteristics.
Tri-methyl-propane and glycerin-based surface-active co-solvents (SAS) as an effective, low-cost, and environmentally friendly source of nonionic/anionic amphiphiles for chemical EOR applications
Authors:   Ultimate EOR services LLC, Upamali Karasinghe A , Britton Chris ,   Ultimate EOR services LLC, Liyanage Jith ,   Ultimate EOR services LLC, Dean Matt ,   Ultimate EOR services LLC, Weerasooriya Upali ,   Ultimate EOR services LLC, Winoto Winoto ,   Ultimate EOR services LLC
Published: November 2022

This is the first known applications of tri-methyl-propane and glycerin alkoxylates in chemical EOR. Very large molecular weight amphiphile molecules with varying PO/EO units were synthesized for this study. Our systematic experiments demonstrate the breadth of applicability for this novel and highly underutilized class of chemicals in combination with naturally generated soaps in the reservoir. Phase behavior and coreflood experiments with multiple crude oils with significant chemical and geographical diversity are presented as evidence to the efficacy of these chemicals. Triol molecular structure of glycerin can be easily customized with large amount of PO and EO to yield an optimal HLB for a given crude oil. These molecules exhibit favorable characteristics such as high salinity/hardness tolerance, aqueous solubility and flowability for logistical field applications. PO levels above approximately 25 units significantly improved surface activity with medium to heavy crude oils. EO units can be included/increased to improve cloud point for specific reservoir conditions. Remarkably, the optimal salinities of the SP/ACP/ASP formulations were fairly insensitive to co-solvent concentration. Furthermore, these co-solvents were able to be substituted in place of more costly anionic surfactants, with no loss in formulation effectiveness. These chemicals were also effective in improving polymer solution quality, via better filterability and injectivity. These novel co-solvents are effective at low concentrations and can be tailored for many EOR targets
Animal-free protein production using precision fermentation
Authors:   Liven, Luo Fei , Halgas Ondrej ,   Liven Proteins Corp., Gawand Pratish ,   Liven Proteins Corp., Lahiri Sagar ,   Liven Proteins Corp.
Published: November 2022

The $1.4 trillion animal industry could not sustainably scale further to feed the next billion population, as it is resource intensive, and heavy in greenhouse gas emission. The recent plant-based food movement has provided solution for more sustainable protein sources. However, the plant-based food sector faces challenges in reaching parity in texture, sensory experience (mouthfeel) and nutritional value as animal products, limiting their potential of reaching beyond the vegan and flexitarian consumers. The technical challenge behind this problem is that proteins from plants have intrinsically different amino acid compositions and structures from animal proteins, making it challenging to emulate the properties of animal products using plant-proteins alone. There is a clear and underserved need for novel protein ingredients that can complement plant-based protein ingredients to achieve parity of animal products. Fermentation is considered the third pillar of alternative protein revolution. At Liven, we focus our efforts on developing precision fermentation technology to produce functional protein ingredients that are natural replica of animal proteins. Using engineering biology, we transforms microorganisms with genes that are responsible for producing animal proteins such as collagen and gelatin. The transformed microorganisms are cultivated in fermenters to produce proteins from plant-based raw-materials. Since the protein produced are have identical amino acid sequences and structure as proteins that would be derived from animals, they provide the desired texture and sensory characteristics currently missing in plant-based formulations. For instance, our animal-free gelatin provides the functionality of thermally reversible gel. As our protein ingredients provides functionality and nutrition value of animal proteins, these ingredients could complement plant-based protein ingredients to deliver alt-protein food formulations more accurately emulate animal products, expand the market acceptance of alt-protein foods to mass consumers.
Combined effect of extraction and purification conditions on yield, composition, functional and structural properties of lupin proteins
Authors:   Groupe AVRIL, Albe Slabi Sara , Mathé Christelle ,   LRGP CNRS UMR7274, Ndiaye Mbalo ,   Groupe AVRIL, Mesieres Odile ,   LRGP CNRS UMR7274, Kapel Romain ,   LRGP CNRS UMR7274
Published: November 2022

The growing global population combined with the socio-economic changes leads to the increase of the demand of plant proteins for human nutrition. In recent years, many studies has been aimed at developing new high-quality and functional plant-based protein food. Lupin being a widely cultivated legume crop is one of the most promising alternative source of proteins for human nutrition. However, the scientific knowledge of the production process of proteins from lupin meal is still very scarce.In this work, different conditions of extraction and purification were evaluated for production of lupin protein isolates. The results showed that the extraction yield was comparable between acidic and alkaline pH (37% vs 40-45%) and the extracted proteins were principally composed of globulins. This finding was astonishing regarding the selective extraction of albumins in acidic pH previously reported for other plant protein sources. The ionic strength negatively impacted the protein extractability at pH 2, whereas no significant differences were observed between extraction at 20 to 50°C.The selected extraction conditions (pH 2 and 7) combined with purification by isoelectric precipitation or ultrafiltration process generated the isolate grade products. Further structural characterization of isolates revealed a partial denaturation of lupin proteins extracted under acidic pH resulting in low protein solubility at pH 6-7 (10-50%), loss in secondary structure, low thermal stability, and formation of aggregates. However, these modifications did not significantly impact the foaming and emulsifying properties of proteins. The obtained results highlighted the original and previously not described behaviors of lupin proteins observed during the isolation process. For the first time the combined effect of extraction and purification conditions on the process performances and the quality of producing proteins was shown. The presented conclusions may help to better characterize lupin proteins and valorize lupin meal as a source of plant proteins in food industry.
Protein based biopolymers as sorbents for treatment of industrial wastewater
Authors:   University of Alberta, Ullah Aman , Vandamme Dries ,   UHasselt, Siddique Tariq ,   University of Alberta
Published: November 2022

The industrial waste water produced during the extraction or refining of natural resources is highly contaminated with organic and inorganic contents, which requires a complex and expensive treatment. Therefore, water contamination and its treatment has become a global issue of concern. Particularly oil sands operations consume large amounts of water in bitumen extraction process. Our study involves the use of chemically modified keratin protein (poultry feathers) as a sorbent for treating waste water. Poultry feathers, abundant waste material and huge source of keratin (over 91% keratin biopolymer), have tremendous potential for producing biopolymers for large-scale applications. The overall goal of our research is to provide industry with a sorbent material that is both effective as well as economically viable for industrial scale wastewater treatment. Different modified biopolymers were used as sorbents to treat oil sands process-affected water (OSPW) to sorb metals and naphthenic acids present in wastewater. The modified biopolymers were tested against OSPW maintained at ionic strength of 0.05 and spiked with up to 50 ppb of 9 trace elements (SeIV, Cu, Zn, AsIII, Pb, Ni, VV, CrVI, and Co). The OSPW solutions were treated with 1% biopolymers for 24 hours followed by centrifugation and analysis using ICP-MS and FTIR spectroscopy. of the biosorbents showed high sorption capacity for both type of contaminants (naphthenic acid and metals). The results demonstrated that through proper tuning of functionalities, the biopolymers can be highly effective for sorption of trace metals and naphthenic acids. The high sorption capacity, cheap bioresource, and simplicity of the modifications suggest that there is great potential for an industrial scale viability of the process.
Lenguaje semiótico en la arquitectura de tipología comercial moderna de la ciudad de Managua
Authors: Aguilar Arriola Erasmo José , Vargas Miranda Maria de los Ángeles , Zamora Yolanda 
Published: November 2022

En este artículo se abordó de manera puntual los aspectos más destacados sobre la Semiótica Arquitectónica enfocada en el reconocimiento de los elementos semióticos dentro de la tipología de Centros Comerciales en la ciudad de Managua. Partiendo de diferentes teóricas y estudios, se establece la importancia de la semiótica como un método propio de la arquitectura para su correcta comprensión y por ende también para el posterior proceso de diseño retomando los elementos y criterios que tienen un significado a destacar y generan agrado e identidad.
La identificación de dichos componentes se obtuvo a partir del análisis de teorías y conceptos (textura, color, formas, signos y sensaciones, emociones que se generan de la experiencia del usuario) estrechamente ligados al tema y cuya síntesis permitió la creación de una metodología y, a su vez, una herramienta específica que se sintetiza en una tabla de valores para el análisis semiótico in situ (Ficha de Evaluación de Análisis semiótico en Centros Comerciales).
Es importante reconocer los valores generales de las obras arquitectónicas y el estilo que estas aportan a la ciudad, ya sea en una escala barrial o más macro. Aunque en su momento estos edificios sobresalieron del estilismo propio de las zonas en donde se emplazan, lograron rápidamente convertirse en un ímpetu de desarrollo para otras obras que les siguieron, incluso generando una identidad con los usuarios.
DEKONSTRUKSI RUANG PENDIDIKAN SENI MELALUI RESILIENSI MASYARAKAT URBAN
Authors: Hariana Kadek 
Published: November 2022

Derasnya arus globalisasi, pada saat budaya kaum kapitalis telah mengambil alih pada setiap aspek kehidupan sosial budaya masyarakat kota di Yogyakarta dengan gempuran media massa cetak yang selalu menjadi bagian dari sampah visual dan media elektronik yang cenderung mengambil alih semua opini publik yang muncul dan diperburuk dengan datangnya bencana Pandemi Covid-19 yang melanda seluruh dunia yang tidak mengenal batas geografis dan status sosial masyarakatnya, bukan hanya menyerang dalam ranah kesehatan tubuh fisik manusia tetapi juga telah berpengaruh terhadap segala aspek kehidupan masyarakat seperti pendidikan, sosial budaya dan ekonomi. Pada situasi seperti ini sikap adaptasi dan resiliensi masyarakat desa dan kota terhadap bencana yang terjadi menjadi faktor yang perlu dilihat dalam proses kehidupan di masa depan. Ranah seni rupa ruang publik menjadi sebuah pilihan alternatif yang dirasa paling demokrasi diantara berbagai seni yang ada. Seni Urban di Yogyakarta berkembang dengan cepat karena didukung oleh keadaan wilayah ruang publik dan interaksi budaya kota ke desa dan desa ke kota yang hampir tidak memiliki jarak, sehingga mampu menjadi poros utama, yang membentuk identitas budaya masyarakat lokal urban yogyakarta serta melahirkan sebuah ruang alternatif pendidikan seni yang demokrasi untuk kebertahanan dan keberlanjutan eksistensinya sebagai manusia yang diakui keberadaanya di tengah masyarakat. Kata kunci: dekonstruksi, resiliensi, pendidikan seni, masyarakat urban ART EDUCATION DECONSTRUCTION THROUGH URBAN COMMUNITY RESILIENCEAbstract The rapid flow of globalization, at a time when the capitalist culture has taken over every aspect of the socio-cultural life of the city community in Yogyakarta with the onslaught of the printed mass media which has always been a part of visual waste and electronic media tends to take over all emerging public opinion exacerbated by the arrival of the disaster The Covid-19 pandemic that has hit the entire world that knows no geographical boundaries and social status of its people, which not only attacks the health realm of the human body but has also affected all aspects of community life such as education, socio-culture and economy. In a situation like this, the attitude of adaptation and community resilience to disasters that occur is a factor that needs to be seen in the process of life in the future. The realm of art in public space is an alternative option which is considered the most democratic among the various existing arts. Urban art in Yogyakarta is growing rapidly because it is supported by the state of the area of public space and the interaction of city-to-village and village-to-city culture which has almost no distance, so that it can become the main axis, which forms the cultural identity of the local Yogyakarta urban community and gives birth to an art education space a democracy for the sustainability and continuity of its existence as a human being. Keywords: deconstruction, resilience, art education, urban society