Thermodynamic Modeling for Liquid-Liquid Extraction of PEG-MgS04 system in MATLAB

This project focuses on the application of protein extraction in aqueous salt system. The objective is to simulate a system which contains polymer and salt which will subsequently be used to extract protein. This system is called as Aqueous Two-Phase Extraction System (ATPES). ATPES is a liquid-liquid extraction system where the extraction takes place when it reaches liquid-liquid equilibrium (LLE). This system consists of water, polymer and salt. Both polymer and aqueous is allowed to attain equilibrium where it forms two clear phase. The formation of two phase depends on parameters such as pH value of system, temperature and concentration level. The model used in this thermodynamic approach is Flory-Huggins model [1,2]. Flory-Huggins model is a mathematical model of the thermodynamics of polymer solutions which takes account of the great dissimilarity in molecular sizes in adapting the usual expression for the entropy of mixing [1,2]. This project is a simulation-based project using MATLAB. This software enables the author to find possible combination of ATPES and to optimize protein recovery. First of all, the author needs to learn and master using MATLAB software. Then some literature reviews need to be performed to select the right ATPES. At the end of the project the results of this project will be compared with experimental result which will be obtained through literature review

Determinants of loyalty and the effect of switching cost towards mobile telecommunication service providers in Malaysia

Customer loyalty has been a highly sought after topic among academicians and industry practitioners to enable growth and competitiveness enhancement. This research investigated the challenges plaguing the mobile telecommunication industry, namely fluctuating revenue despite growth in the number of users, sliding average revenue per user (ARPU) and reduced repeat purchase, in addition to scarcity in analysing switching cost’s mediating effect. These impose serious concerns that link to dwindling customer loyalty. This research also compared the preferences of postpaid and prepaid users pertaining to satisfaction, trust, service quality and switching cost towards customer loyalty. This study utilized a quantitative approach where the stratified systematic random sampling was employed and data was collected in the Klang Valley over a time frame of 105 days. The instrument used was a self-administered questionnaire whereas structural equation modelling (SEM) was exercised for statistical analysis. The findings revealed that service quality and switching costs were the driving forces of loyalty while service quality, too, advocates switching cost. Moreover, service quality and loyalty were found to be the only constructs mediated by switching cost. Satisfaction and trust were however, found not to predict loyalty and switching cost. In fact, there were no mediating effects of switching cost on satisfaction and loyalty relationship, similar to trust and loyalty relationship. Meanwhile, service quality and loyalty relationship were found to be important among postpaid users, contrary to prepaid users. The overall findings affirmed service quality as the key component of customer loyalty and switching cost; likewise they clarified that loyalty does not need to transpire in a continuum manner. These outcomes are immensely valuable to practitioners for strategizing and executing tailormade plans while enhancing knowledge pertaining to switching cost and customer loyalt

Generative Adversarial Text to Image Synthesis

Automatic synthesis of realistic images from text would be interesting and useful, but current AI systems are still far from this goal. However, in recent years generic and powerful recurrent neural network architectures have been developed to learn discriminative text feature representations. Meanwhile, deep convolutional generative adversarial networks (GANs) have begun to generate highly compelling images of specific categories, such as faces, album covers, and room interiors. In this work, we develop a novel deep architecture and GAN formulation to effectively bridge these advances in text and image model- ing, translating visual concepts from characters to pixels. We demonstrate the capability of our model to generate plausible images of birds and flowers from detailed text descriptions.Comment: ICML 201

Schützende Bewältigung

In diesem Open-Access-Buch wird eine qualitative Studie zum Thema Diskriminierungserfahrungen von Fachkräften der Sozialen Arbeit vorgestellt. Ziel der Arbeit ist es, eine gegenstandsverankerte Theorie abzubilden, die hilft, den Umgang mit Diskriminierungserfahrung – insbesondere Rassismuserfahrungen – zu beschreiben: Wie verhalten sich Betroffene in diskriminierenden Situationen? Wie gehen sie mit ihren Erfahrungen außerhalb der diskriminierten Situation um? Einer der Schwerpunkte der Untersuchung ist das Zusammenspiel der Erfahrungen und des professionellen Arbeitskontextes. Das Theoriemodell der Schützenden Bewältigung ist ein Beitrag zur rassismuskritischen Sozialen Arbeit und lädt zu einem Perspektivenwechsel ein. Die theoretischen Überlegungen bieten gleichzeitig Anknüpfungspunkte für die Praxis

Thermodynamic Modeling for Liquid-Liquid Extraction of PEG-MgS04 system in MATLAB

This project focuses on the application of protein extraction in aqueous salt system. The objective is to simulate a system which contains polymer and salt which will subsequently be used to extract protein. This system is called as Aqueous Two-Phase Extraction System (ATPES). ATPES is a liquid-liquid extraction system where the extraction takes place when it reaches liquid-liquid equilibrium (LLE). This system consists of water, polymer and salt. Both polymer and aqueous is allowed to attain equilibrium where it forms two clear phase. The formation of two phase depends on parameters such as pH value of system, temperature and concentration level. The model used in this thermodynamic approach is Flory-Huggins model [1,2]. Flory-Huggins model is a mathematical model of the thermodynamics of polymer solutions which takes account of the great dissimilarity in molecular sizes in adapting the usual expression for the entropy of mixing [1,2]. This project is a simulation-based project using MATLAB. This software enables the author to find possible combination of ATPES and to optimize protein recovery. First of all, the author needs to learn and master using MATLAB software. Then some literature reviews need to be performed to select the right ATPES. At the end of the project the results of this project will be compared with experimental result which will be obtained through literature review

„Peace on the left, justice on the right“– Was die Black-Lives-Matter-Bewegung für Sozialarbeiter*innen bedeutet

Seit der rassistischen Ermordung von George Floyd im Jahr 2020 durch Polizeigewalt erlangt die Black-Lives-Matter-Bewegung (BLM) erneut an Bedeutung. Auch die Fachkräfte der Sozialen Arbeit haben es sich zu Aufgabe gemacht, Unrechtserfahrung zu bekämpfen, wozu auch Rassismuserfahrungen zählen. Um jedoch dem sozialarbeiterischen Auftrag gerecht zu werden, sind Sozialarbeitende dazu angehalten, ihre Eigenbeteiligung an (re-)produzierenden Prozessen rassismuskritisch zu hinterfragen. Dieser Beitrag erläutert zunächst, was unter soziale Bewegung zu verstehen ist. Anschließend daran wird der Entstehungskontext der BLM wiedergegeben, um dann schlussendlich der Frage nachzugehen, wie Fachkräfte der Sozialen Arbeit auf soziale Bewegungen reagieren sollten. Hierzu werden zum Schluss zwei Handlungsperspektiven für Sozialarbeitende formuliert

Heute Differenz, morgen Ähnlichkeit – Ein Ausblick für die Soziale Arbeit

Der vorliegende Beitrag befasst sich mit ähnlichkeitsorientiertem Denken in der Sozialen Arbeit. Gutgemeinte Konzepte können bei einer unreflektierten Umsetzung das Gegenteilige bewirken: So werden an gewissen Stellen Barrieren reproduziert, wo sie ursprünglich abgebaut werden sollten. Ein ähnlichkeitsorientiertes Denken kann in der Sozialen Arbeit als eine wichtige Ressource betrachtet werden, die Dichotomien, statisches Denken und kulturelle Hierarchisierungen auflösen kann

Schützende Bewältigung – Rassismus als ein Thema von und für Fachkräfte(n) der Sozialen Arbeit

In diesem Beitrag stellt Araththy Logeswaran ausgewählte Ergebnisse aus ihrer Dissertation vor. In der qualitativen Studie setzt sie sich mit Diskriminierungserfahrungen von muslimischen Fachkräften der Sozialen Arbeit auseinander. Anhand ihres innovativen Theoriemodells der Schützenden Bewältigung legt sie dar, warum es wichtig ist, die gesellschaftliche Position als Fachkraft zu reflektieren und welche Gefahren damit verbunden sind, wenn diese nicht berücksichtigt wird