1,360,131 research outputs found
Retained gallstone mimicking an abdominal wall metastasis in a patient with lung cancer 7 years after laparoscopic cholecystectomy
No full textRetained gallstones, also called dropped or slipped gall-stones, are reported with an incidence of about 0.1—20% andrelated to gallbladder perforation or losing during specimenextraction [1].Retained gallstones can appear as peritoneal loose bod-ies, abdominal abscess, dropped appendicolith or peritonealmetastasis. Many cases of dropped gallstones are usuallyasymptomatic. The most common complication is infec-tion. The abscess location includes the intraperitoneal andextraperitoneal spaces [2]
New rhamnogalacturonan degrading enzymes from Aspergillus aculeatus = Nieuwe rhamnogalacturonaan afbrekende enzymen uit Aspergillus aculeatus
No full textThree new rhamnogalacturonan degrading enzymes were purified from a commercial enzyme preparation, Pectinex Ultra SP, produced by the fungus Aspergillus aculeatus . Pectinex Ultra SP is industrially used in the mash treatment of apples and pears in juice production, increasing juice yield. Rhamnogalacturonans are highly branched polysaccharides that are part of the pectin network in the plant cell wall. The purified enzymes were characterized and appeared to be only active toward rhamnogalacturonan and not toward the well-known pectic polysaccharide homogalacturonan. Rhamnogalacturonan rhamnohydrolase is able to remove the terminal nonreducing L-rhamnose residues which are α-(1,4)-linked to D-galacturonic acid residues in rhamnogalacturonans. Rhamnogalacturonan galacturonohydrolase is an enzyme able to remove the terminal nonreducing D-galacturonic acid residues which are α-(1,2)-linked to L-rhamnose residues in rhamnogalacturonans. Both enzymes were essential analytical tools in the study of the mode of action of rhamnogalacturonan hydrolase and a third new enzyme, rhamnogalacturonan lyase, toward linear rhamnogalacturonan oligosaccharides. While rhamnogalacturonan hydrolase cleaves α-D- galacturonic acid-(1,2)-L-rhamnose linkages by hydrolysis, rhamnogalacturonan lyase cleaves the α-L- rhamnose-(1,4)-D-galacturonic acid linkages by β-elimination. Both enzymes act in an endo-fashion, with a degree of multiple attack of 4 and 2.5 respectively toward modified hairy regions of apple. From the degree of multiple attack of these endo-enzymes, combined with information on the mode of action toward linear rhamnogalacturonan oligosaccharides, it could be estimated that the average length of rhamnogalacturonan regions In modified hairy regions of apple is at least 29 sugar residues
New rhamnogalacturonan degrading enzymes from Aspergillus aculeatus = Nieuwe rhamnogalacturonaan afbrekende enzymen uit Aspergillus aculeatus
No full textThree new rhamnogalacturonan degrading enzymes were purified from a commercial enzyme preparation, Pectinex Ultra SP, produced by the fungus Aspergillus aculeatus . Pectinex Ultra SP is industrially used in the mash treatment of apples and pears in juice production, increasing juice yield. Rhamnogalacturonans are highly branched polysaccharides that are part of the pectin network in the plant cell wall. The purified enzymes were characterized and appeared to be only active toward rhamnogalacturonan and not toward the well-known pectic polysaccharide homogalacturonan. Rhamnogalacturonan rhamnohydrolase is able to remove the terminal nonreducing L-rhamnose residues which are α-(1,4)-linked to D-galacturonic acid residues in rhamnogalacturonans. Rhamnogalacturonan galacturonohydrolase is an enzyme able to remove the terminal nonreducing D-galacturonic acid residues which are α-(1,2)-linked to L-rhamnose residues in rhamnogalacturonans. Both enzymes were essential analytical tools in the study of the mode of action of rhamnogalacturonan hydrolase and a third new enzyme, rhamnogalacturonan lyase, toward linear rhamnogalacturonan oligosaccharides. While rhamnogalacturonan hydrolase cleaves α-D- galacturonic acid-(1,2)-L-rhamnose linkages by hydrolysis, rhamnogalacturonan lyase cleaves the α-L- rhamnose-(1,4)-D-galacturonic acid linkages by β-elimination. Both enzymes act in an endo-fashion, with a degree of multiple attack of 4 and 2.5 respectively toward modified hairy regions of apple. From the degree of multiple attack of these endo-enzymes, combined with information on the mode of action toward linear rhamnogalacturonan oligosaccharides, it could be estimated that the average length of rhamnogalacturonan regions In modified hairy regions of apple is at least 29 sugar residues
Molecular genetic and physiological studies to unravel the mystery of Sphingomonas wittichii RW1 dibenzo-p-dioxin degradation
No full textDibenzofuran and dibenzo-p-dioxin are ubiquitous environmental pollutants in soil and sediment. Sphingomonas wittichii RW1 is one of a few strains known for the ability to grow on the related compounds dibenzofuran (DBF) and dibenzo-p-dioxin (DXN) as the sole source of carbon. The genes for the initial steps in the DBF catabolic pathway (ring hydroxylating dioxygenase, ring cleavage dioxygenase, and a hydrolase) which result in the formation of salicylate and a five-carbon fragment have been localized to a mega-plasmid designated pSWIT02 in RW1. Plasmids highly similar to pSWIT02 have been found in other DBF degrading Sphingomonas strains. However, despite having the pSWIT02-encoded DBF degradation pathway these other bacteria are not capable of growth on DXN. This thesis describes involvement of chromosomally encoded genes in dibenzo-p-dioxin degradation by RW1. RW1 lacking the pSWIT02 dbfB gene grows extremely slowly on DBF and accumulates the ring cleavage substrate 2,2',3-trihydroxybiphenyl. The mutant grows normally on DXN as the sole source of carbon indicating that dbfB is not necessary for the DXN catabolic pathway and suggesting involvement of other ring cleavage dioxygenases in DXN pathway. Knockout of gene SWIT3046 resulted in a strain that grows normally on DBF but that does not grow on DXN. The double knockout does not grow on either DBF or DXN. These results prove that separate ring cleavage enzymes are necessary for DBF and DXN degradation.We then examined the third enzymatic step in RW1, the hydrolase. RW1 lacking the pSWIT02 encoded gene dxnB1 or the chromosome encoded gene dxnB2 grow normally on both DBF and DXN. A double knockout of both genes does not grow on DBF but still grows on DXN. We then examined previously published transcriptomic data that showed that the SWIT0910 encoded hydrolase is up regulated during growth on DBF and DXN. A knockout of SWIT0910 grows normally on DBF but does not grow on DXN. Our results demonstrate that a chromosomally encoded hydrolase, SWIT0910, is absolutely required for growth on DXN and that two different hydrolases (chromosomally and plasmid encoded) contribute equally to growth on DBF.Genes for three biphenyl ring cleavage dioxygenases from Burkholderia xenovorans LB400, Sphingomonas yanoikuyae B1, and Pseudomonas putida F1 were moved into a mutant lacking the RW1 DBF and DXN ring cleavage genes. All three ring cleavage dioxygenases allowed the mutant RW1 to grow on DBF at different rates. Interestingly, only bphC from Burkholderia xenovorans LB400 allowed RW1 mutant to grow on DXN.Ph.D.Includes bibliographical reference
Translating Brecht : versions of "Mutter Courage und ihre Kinder" for the British stage
No full textThis study analyses five British translations of Bertolt Brecht's 'Mutter Courage und ihre Kinder'. Two of these translations were written by speakers of German, and three by well-known British playwrights with no knowledge of the source text language. Four have been produced in mainstream British theatres in the past twenty-five years. The study applies translation studies methodology to a textual analysis which focuses on the translation of techniques of linguistic "Verfremdung", as well as linguistic expression of the comedy and of the political dimension in the work. It thus closes the gap in current Brecht research in examining the importance of his idiosyncratic use of language to the translation and reception of his work in the UK. The study assesses the ways in which the translator and director are influenced by Brecht's legacy in the UK and in turn, what image of Brecht they mediate through the production on stage. To this end, the study throws light on the formation of Brecht's problematic reputation in the UK, and it also highlights the social and political circumstances in early twentieth century Germany which prompted Brecht to develop his theory of an epic theatre.
The focus on a linguistic examination allows the translator's contribution to the production process to be isolated. Together with an investigation of the reception of each performance text, this in turn facilitates a more accurate assessment of the translator and director's respective influence in the process of transforming a foreign-language text onto a local stage. The analysis also sheds light on the different approaches taken by speakers of German, and playwrights creating an English version from a literal translation. It pinpoints losses in translation and adaptation, and suggests how future versions may avoid these
PSYNDEX Tests Review für FMKB - FRAGEBÖGEN ZUR ERFASSUNG DER MUTTER-KIND-BEZIEHUNG IN DER GEBURTS- UND SÄUGLINGSZEIT
No full textThis is a PSYNDEX Tests Review of FMKB - FRAGEBÖGEN ZUR ERFASSUNG DER MUTTER-KIND-BEZIEHUNG IN DER GEBURTS- UND SÄUGLINGSZEIT. PSYNDEX Tests Reviews are written in German and describe and evaluate psychological and educational tests used in the German-speaking countries. PSYNDEX Tests is offered by the Leibniz Institute for Psychology as open access documentation.Das ist ein PSYNDEX Tests Review zu FMKB - FRAGEBÖGEN ZUR ERFASSUNG DER MUTTER-KIND-BEZIEHUNG IN DER GEBURTS- UND SÄUGLINGSZEIT. PSYNDEX Tests Reviews beschreiben und bewerten zentrale psychologische und pädagogische Testverfahren, die in den deutschsprachigen Ländern eingesetzt werden, nach einem standardisierten Raster. PSYNDEX Tests wird durch das Leibniz-Institut für Psychologie als Open Access Dokumentation angeboten.publishedVersio
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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A Matter of Mutter
No full text"A Matter of Mutter" by Robert E. Pollack humorously explores the social etiquette of acknowledging acquaintances in passing, particularly in the context of university life. The article details the awkwardness of determining the right moment to make eye contact, nod, or mutter a greeting when encountering someone you know only by sight. Pollack presents various hypothetical scenarios, illustrating the intricacies and subtle pressures involved in these brief social interactions. The piece blends lighthearted satire with a keen observation of human behavior, capturing the nuanced and often unspoken rules that govern casual encounters
Postoperative complications as an independent risk factor for recurrence after laparoscopic ventral hernia repair: a prospective study of 417 patients with long-term follow-up
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