770 research outputs found
The potential of copper-resistant bacteria Acinetobacter sp. strain CN5 in decolorizing dyes
No full textIrawati W, Pinontoan R, Mouretta B, Yuwono T. 2021. The potential of copper-resistant bacteria Acinetobacter sp. strain CN5 in decolorizing dyes. Biodiversitas 23: 680-686. Bacteria with multi-resistance to copper and dyes may be employed in bioremediation of copper and dye waste more effectively than physical or chemical remediation. This study aims at determining the effect of the addition of various textile dyes and copper on the growth of Acinetobacter sp. CN5 and its ability to decolorize dyes. The dye resistance test was carried out by inoculating bacterial isolates into Luria Bertani media containing 50, 100, 150, 200, 250, 300, 350, 400, 450, and 500 ppm dyes. The twelve dyes used in the test were methylene blue, malachite green, congo red, mordant orange, reactive black, direct yellow, basic fuchsine, reactive orange, dispersion orange, remazol red, wantex yellow, and wantex red. The decolorization activity was analyzed by spectrophotometry at a 300-900 nm wavelength. The study results demonstrated that bacteria thrived in media containing 50 ppm of all dyes, except malachite green dye. Acinetobacter sp. CN5 was found to be resistant to up to 500 ppm methylene blue, basic fuchsine, and wantex red and resistant to congo red at 450 ppm. Acinetobacter sp. CN5 was also able to decolorize methylene blue, congo red, basic fuchsine, and red wantex by 57.64, 53.17, 91.37, and 67.50, respectively. The addition of 5 mM CuSO4 to the medium increased the ability of Acinetobacter sp. CN5 to decolorize the congo red from 57.64 to 82.58. © 2022, Society for Indonesian Biodiversity. All rights reserved
The Power of Language and Silence: Reinhard Jirgl’s Die Stille
No full textReinhard Jirgl (1953–) is an emphatically German author. He insists that German is “die Sprache in der ich denke, spreche und schreibe,”¹ and the award of several prestigious prizes (including the Büchner Prize in 2010) has confirmed his place in the German literary tradition. Yet Jirgl uses the German language in consistently and characteristically iconoclastic ways to challenge the authority of historical, political, and institutional discourse. Precisely because his work went against the ideological prescriptions of the East German state, it remained unpublished in the GDR, where Jirgl lived and worked. Since unification he has become a prolific author,..
Reinhard Köhler's scientific production: words, numbers and pictures
No full textThis study draws upon statistical analysis techniques of textual data to examine a corpus composed of 22 research articles published between 1997 and 2010 by Reinhard Köhler as a single author or in collaboration with other scholars. The aim of this article is to draw a representation of the main areas of interest of his research. After having drawn an overall representation of the corpus, Köhler’s latest work – an unpublished volume on Quantitative Syntax Analysis – was analysed to understand its role within the context of his research
Bioinformatics Analyses of Endo-1,4-beta-xylanase from Bacillus sp. SS3.4
Get PDFVarious types of microorganisms particularly bacteria and fungi are capable of producing xylanolytic enzymes that degrade xylan into simple sugars to be used as their carbon sources. Xylanolytic enzymes, particularly endo-1,4-β-xylanase, has been extensively used in various industrial sectors, including biofuel, livestock, paper, and food. Previously, Bacillus sp. SS3.4 was observed to have xylanolytic activities on wheat bran, suggesting its capability of producing xylanolytic enzymes, endo-1,4-β-xylanase included. With great numbers of data available in nucleotide and protein sequence databases, bioinformatics analyses of protein structure for function prediction have become attractive to supplement wet laboratory experiments to reduce time and money consumption. Therefore, in this study, bioinformatics analyses were performed on Bacillus sp. endo-1,4-β-xylanase sequence in order to further evaluate the enzyme’s function by exploring its protein structure in comparison to other known bacterial endo-1,4-β-xylanase. In this study, Bacillus sp. endo-1,4-β-xylanase sequence was identified from its whole genome sequence. The sequence was then analyzed by using BLAST to perform a homology search for identifying the protein, MUSCLE to perform multiple sequence alignment for comparing with other enzyme sequences, PHYLOGENY-FR to display its relatedness among Bacillus, Aspergillus niger and Trichoderma reesei, and SWISS-MODEL to generate its three-dimensional structure. Results from BLAST confirmed that the identified sequence was endo-1,4-β-xylanase, with greater relatedness to Bacillus velezensis and Bacillus amyloliquefaciens endo- 1,4-β-xylanase. While results from MUSCLE and SWISS-MODEL suggested that the endo-1,4-β-xylanase belongs to the Glycosyl Hydrolase 11 (GH11) family bearing the distinct shape of a jelly roll with well-conserved binding and catalytic residues. These results strongly suggest that Bacillus sp. endo-1,4-β-xylanase is potentially capable of degrading xylan with highly similar mechanism as with other endo-1,4-β-xylanase.
Keywords: Bacillus, bioinformatics analysis, endo-1,4
Kajian Pustaka : Pemanfaatan Mikroba Yang Berpotensi Sebagai Agen Bioremediasi Limbah Pewarna Tekstil [A Review : Utilization of Potential Microbes as Bioremediation Agent for Textile Dyes Waste water]
Get PDFThe rapid expansion of textile industry in Indonesia raises substantial concerns with regard to the disposal of excess dyes into the environment. The deleterious consequences of such issue can be alleviated through wastewater management by combining physical, chemical and biological approach. Biological treatment through bioremediation needs to be thoroughly considered and developed as it offers favorable attributes by being sustainable, inexpensive and environmentally friendly. In Indonesia, the employment of bioremediation technique, to treat textile dye effluent, has been extensively applied through the use of activated sludge. Apparently, studies describing the potential of various indigenous microorganisms to degrade textile dyes have continuously been reported. This paper proposed practical methods to isolate and select for potential indigenous microbes as well as their employment as bioremediation agent on dye contamination. Selections can be enhanced through the incorporation of bioinformatics analysis on the approach of microbiology. Appropriate systems are required to be carefully designed to optimized application on-site
Review: Reinhard Müller (2008). Marienthal: Das Dorf - Die Arbeitslosen - Die Studie
No full textDas Buch von Reinhard MÜLLER beschäftigt sich mit der bekannten Studie "Die Arbeitslosen von Marienthal" von Marie JAHODA, Paul F. LAZARSFELD und Hans ZEISEL (1933, 1960, 1975). In seinem sozialhistorischen Zugang gelingt es MÜLLER, interessante Details zur Studie selbst sowie zur Gemeinde und zur Fabrik zu präsentieren. Mehr als die Hälfte des Buches ist der Entwicklung der Arbeitersiedlung Marienthal gewidmet, beginnend bei der Gründung des Dorfes und danach der Textilfabrik. Eingegangen wird auf historische Ereignisse, bedeutende Personen und Entwicklungen in der Gemeinde. Im anderen Teil werden zusätzliche Informationen rund um die Studie präsentiert. Porträts und Erinnerungen der Projektmitarbeiter/innen stehen dabei im Mittelpunkt. Das Buch ermöglicht nicht nur einen tieferen Einblick in die klassische Studie und Marienthal, es veranschaulicht auch (österreichische) Geschichte an einer Gemeinde.The book by Reinhard MÜLLER deals with the well-known study "Marienthal: The Sociography of an Unemployed Community" by Marie JAHODA, Paul F. LAZARSFELD, and Hans ZEISEL (1933, 1971). The author presents interesting socio-historical details about the study itself as well as about the community and factory. More than half of the book is dedicated to the development of the workers' settlement of Marienthal, starting with the founding of the village and then the textile factory. The author describes historical events, important people' and developments in the community. Also additional information - portraits and memories - about the well-known study is presented. The book not only enables a deeper insight into the classical study and the settlement of Marienthal, it also illustrates (Austrian) history by way of a community and a study
Reinhard Köhler's Scientific Production: Words, Numbers and Pictures, di Arjuna Tuzzi
No full textThis study draws upon statistical analysis techniques of textual data to examine a corpus composed of 22 research articles published between 1997 and 2010 by Reinhard Köhler as a single author or in collaboration with other scholars. The aim of this article is to draw a representation of the main areas of interest of his research. After having drawn an overall representation of the corpus, Köhler’s latest work – an unpublished volume on Quantitative Syntax Analysis – was analysed to understand its role within the context of his research
Gott als Vater bei Plotin und Porphyrios
No full textThe metaphor of conception or birth plays a central role in neo-platonism: it is used alongside other to describe the proceeding of the reality of the highest principle and their gradual development. This chapter explores the following questions with reference to two Neoplatonic philosophers, first 'Hour: Plotinus and his student Porphyry: what does this mean for the speech of the gods or the highest principle as a father, if, Father 'a mere abstract relations and function name synonymous with, Author' or 'polluter pays', what aspects of the father image are emphasized and what implications these divine beings for the representation of the relationships between themselves and the relationship between man and God. In their texts, the two go with the father metaphor differently to and present in all structural similarity of the theological system a God each but different stored in its relations with the world and man
Kommentare zum italienischen Zivilgesetzbuch. Geschichte, Struktur und Funktion
No full textThe aim of the contribution is to outline the history, the structure and the functions of legal commentaries in the Italian tradition. After a historical introduction, which takes into consideration the relationships between the Italian, the French and the German scholarships, the author exposes the main characteristics of the different types of legal commentaries. The structure and the style of the main publications are put under scrutiny and compared to other literary genres, namely treaties and encyclopedias. The essay tries then to indicate the current “value” of legal commentaries for doctrinal and practice-oriented research purposes. Finally, it discusses the future of the literary genre and its possible implementation in online databases
Review: Reinhard Müller (2008). Marienthal. Das Dorf – Die Arbeitslosen – Die Studie [Marienthal. The Village—the Unemployed—the Study]
No full textThe book by Reinhard MÜLLER deals with the well-known study "Marienthal: The Sociography of an Unemployed Community" by Marie JAHODA, Paul F. LAZARSFELD, and Hans ZEISEL (1933, 1971). The author presents interesting socio-historical details about the study itself as well as about the community and factory. More than half of the book is dedicated to the development of the workers' settlement of Marienthal, starting with the founding of the village and then the textile factory. The author describes historical events, important people' and developments in the community. Also additional information—portraits and memories—about the well-known study is presented. The book not only enables a deeper insight into the classical study and the settlement of Marienthal, it also illustrates (Austrian) history by way of a community and a study.
URN: urn:nbn:de:0114-fqs090320
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