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Bibliografie tematiche / Leptothrix

Letteratura scientifica selezionata sul tema "Leptothrix"

Autore: Grafiati

Pubblicato: 26 luglio 2024

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Articoli di riviste sul tema "Leptothrix"

1

Vieira-Baptista, Pedro, Joana Lima-Silva, Mario Preti, Carlos Sousa, Fernanda Caiano, Colleen K. Stockdale e Jacob Bornstein. "Vaginal Leptothrix: An Innocent Bystander?" Microorganisms 10, n. 8 (15 agosto 2022): 1645. http://dx.doi.org/10.3390/microorganisms10081645.

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Abstract (sommario):

Leptothrix are long bacteria of rare occurrence; although these bacteria have been implicated in causing vaginal symptoms identical to candidiasis, studies on prevalence and effect on overall vaginal health are lacking. In this study, we evaluated data of women referred to a private clinic for treating vulvovaginal symptoms (n = 1847) and reassessed data of our previous and ongoing studies (n = 1773). The overall rate of leptothrix was 2.8% (102/3620), and the mean age of affected women was 38.8 ± 10.65 years (range 18−76). The majority of the women with leptothrix had normal vaginal flora (63.7% [65/102]). Leptothrix was associated with a higher risk of candidiasis (relative risk (RR) 1.90, 95% confidence interval (CI) 1.1600–3.1013; p = 0.010) and a lower risk of bacterial vaginosis (RR 0.55, 95% CI, 0.3221–0.9398; p = 0.029) and cytolytic vaginosis (RR 0.11, 95% CI, 0.0294–0.4643; p = 0.002). No cases of trichomoniasis were observed. Human immunodeficiency virus infection increased the risk of leptothrix (RR 3.0, 95% CI, 1.6335–5.7245; p = 0.000). Among the women evaluated for vulvovaginal symptoms, 2.4% (45/1847) had leptothrix, and in 26.7% (12/45), leptothrix was considered the causative entity. This study suggests that leptothrix occurrence is rare; it remains unresolved if it can be a cause of vulvar symptoms.

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2

Spring, Stefan, Peter Kampfer, Wolfgang Ludwig e Karl-Heinz Schleifer. "Polyphasic Characterization of the Genus Leptothrix: New Descriptions of Leptothrix mobilis sp. nov. and Leptothrix discophora sp. nov. nom. rev. and Emended Description of Leptothrix cholodnii emend." Systematic and Applied Microbiology 19, n. 4 (dicembre 1996): 634–43. http://dx.doi.org/10.1016/s0723-2020(96)80036-1.

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3

Mirzayeva, D. M., e S. A. Aghayeva. "Mechanism of formation water molecules and chemical bonds in Leptothrix materials". Advanced Physical Research 6, n. 1 (19 febbraio 2024): 5–14. http://dx.doi.org/10.62476/apr61514.

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The provided study involves investigating chemical interactions in Leptothrix biomaterial through infrared spectroscopy. The analysis explores variations in chemical relationships based on the nature of chemical bonds and biomaterial coordinates. The primary chemical bonds identified in the biomaterial are associated with Fe-O vibrations and resonances of [OH] functional groups. Additionally, the study presents model representations detailing the formation mechanism of water molecules within the Leptothrix matrix. Model calculations for a two-vacancy cluster defect structure in Fe2O3 and Fe3O4 reveal lifetimes of 180 ps and 174 ps, respectively.

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4

Boogerd, F. C., e J. P. de Vrind. "Manganese oxidation by Leptothrix discophora." Journal of Bacteriology 169, n. 2 (1987): 489–94. http://dx.doi.org/10.1128/jb.169.2.489-494.1987.

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5

Nakatsu, Cindy H., Krassimira Hristova, Satoshi Hanada, Xian-Ying Meng, Jessica R. Hanson, Kate M. Scow e Yoichi Kamagata. "Methylibium petroleiphilum gen. nov., sp. nov., a novel methyl tert-butyl ether-degrading methylotroph of the Betaproteobacteria". International Journal of Systematic and Evolutionary Microbiology 56, n. 5 (1 maggio 2006): 983–89. http://dx.doi.org/10.1099/ijs.0.63524-0.

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A Gram-negative, rod-shaped, motile, non-pigmented, facultative aerobe that grew optimally at pH 6.5 and 30 °C (strain PM1T) was isolated for its ability to completely degrade the gasoline additive methyl tert-butyl ether. Analysis of the 16S rRNA gene sequence indicated that this bacterium was a member of the class Betaproteobacteria in the Sphaerotilus–Leptothrix group. The 16S rRNA gene sequence identity to other genera in this group, Leptothrix, Aquabacterium, Roseateles, Sphaerotilus, Ideonella and Rubrivivax, ranged from 93 to 96 %. The chemotaxonomic data including Q-8 as the major quinone, C16 : 1ω7c and C16 : 0 as the major fatty acids and a DNA G+C content of 69 mol%, support the inclusion of strain PM1T in the class Betaproteobacteria. It differed from other members of the Sphaerotilus–Leptothrix group by being a facultative methylotroph that used methanol as a sole carbon source, and by also being able to grow heterotrophically in defined media containing ethanol, toluene, benzene, ethylbenzene and dihydroxybenzoates as sole carbon sources. On the basis of the morphological, physiological, biochemical and genetic information, a new genus and species, Methylibium petroleiphilum gen. nov., sp. nov., is proposed, with PM1T (=ATCC BAA-1232T=LMG 22953T) as the type strain.

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6

Kunoh, Tatsuki, Hideki Hashimoto, Ian McFarlane, Naoaki Hayashi, Tomoko Suzuki, Eisuke Taketa, Katsunori Tamura et al. "Abiotic Deposition of Fe Complexes onto Leptothrix Sheaths". Biology 5, n. 2 (3 giugno 2016): 26. http://dx.doi.org/10.3390/biology5020026.

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7

Adams, Lee F., e William C. Ghiorse. "Physiology and ultrastructure of Leptothrix discophora SS-1". Archives of Microbiology 145, n. 2 (luglio 1986): 126–35. http://dx.doi.org/10.1007/bf00446769.

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8

Yurt, N., J. Sears e Z. Lewandowski. "Multiple Substrate Growth Kinetics of Leptothrix discophora SP-6". Biotechnology Progress 18, n. 5 (4 ottobre 2002): 994–1002. http://dx.doi.org/10.1021/bp0255098.

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9

Zhang, Jinghao, Leonard W. Lion, Yarrow M. Nelson, Michael L. Shuler e William C. Ghiorse. "Kinetics of Mn(II) oxidation by Leptothrix discophora SS1". Geochimica et Cosmochimica Acta 66, n. 5 (marzo 2002): 773–81. http://dx.doi.org/10.1016/s0016-7037(01)00808-0.

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10

Carlile, Michael J., e A. William L. Dudeney. "The discs of Leptothrix discophora: lost for 89 years?" Microbiology 147, n. 6 (1 giugno 2001): 1393–94. http://dx.doi.org/10.1099/00221287-147-6-1393.

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Più fonti

Tesi sul tema "Leptothrix"

1

Thyssen, Christian [Verfasser], e Wolfgang [Akademischer Betreuer] Sand. "Biofilm formation by the manganese-oxidizing bacterium Leptothrix discophora strain SS-1 and corrosion of stainless steel / Christian Thyssen ; Betreuer: Wolfgang Sand". Duisburg, 2018. http://d-nb.info/1164376381/34.

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2

Barkett, Sebastian Dominic. "Physical and Chemical Parameters Determining Bacterial Growth of Acid Mine Drainage Sites in Southeast Ohio". Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1597070953554645.

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3

Martin, Patrick. "Bilan énergétique de Leptothorax unifasciatus(Latr.)(Hymenoptera, Formicidae)". Doctoral thesis, Universite Libre de Bruxelles, 1990. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/213184.

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4

Denny, Adrian Jay. "An experimental analysis of polydomy in the ant Leptothorax albipennis". Thesis, University of Bristol, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271869.

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5

Trampus, Franc Igor. "The effects of work force variation and conspecific preference in single and mixed-species colonies of Leptothorax longispinosus (Roger) and Leptothorax ambiguus (Emery) (Hymenoptera: Formicidae: Leptothoracini)". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0026/MQ51601.pdf.

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6

Backen, S. J. "An experimental investigation of task allocation in the ant Leptothorax albipennis". Thesis, University of Bath, 2000. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342076.

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7

Sendova-Franks, Ana B. "Spatial and social organisation within nests of the ant Leptothorax unifasciatus (Latr.)". Thesis, University of Bath, 1993. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334616.

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8

Mallon, Eamonn Bernard. "Individual assessments and collective decisions". Thesis, University of Bath, 2001. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341101.

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9

Aron, Serge. "Contribution individuelle et collective dans l'exploitation du territoire chez Leptothorax unifasciatus et Iridomyrmex humilis(Hymenoptera: Formicidae)". Doctoral thesis, Universite Libre de Bruxelles, 1990. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/213188.

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10

Braim, Benjamin Simon. "Exploring the regulatory role of behaviour and genome architecture in the socially polymorphic ant, Leptothorax acervorum". Thesis, University of Leicester, 2015. http://hdl.handle.net/2381/36076.

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Abstract (sommario):

Eusocial species show incredible variation in all aspects of social living, which has facilitated their ecological success. Investigating the mechanisms which regulate variation in social traits is an important goal for evolutionary biology, since understanding fundamental mechanisms underpinning variation can inform social evolutionary theory. In this thesis, I investigate aggressive behaviour and genome architecture as essential mechanisms in regulating variation in the polymorphic social phenotype of the multiple queened ant species L. acervorum. I investigated the role of enforcement behaviour in maintaining reproductive skew in functionally monogynous colonies. I show that in the absence of worker aggression (enforcement), functionally monogynous queens continue to engage in highly aggressive interactions and, crucially, high colony skew was not affected. Furthermore, I show that low skew is not affected by aggressive worker enforcement in polygynous colonies. Therefore, enforcement behaviour is likely to be important in regulating skew in functionally monogynous colonies but not in polygynous colonies, where potentially the loss of sensitivity to enforcement may be an evolved response to fitness benefits associated with the polygynous social phenotype. Furthermore, I investigated the role of genome architecture in regulating variation between the two social phenotypes. I scanned the genomes of four populations (two polygynous and two functionally monogynous) for extreme population differentiation (FST) at SNP loci, which were associated with a difference in the social phenotype. I found a large (6.2Mb) contiguous region associated with different social phenotypes (the social region), which mapped to LG2 on the S. invicta linkage map. The social region displayed some similarities with the social chromosomes in S. invicta and F. selysi. Furthermore, the region contained potential gene candidates, such as odorant binding proteins, which have been associated with divergent social phenotypes in S. invicta. The work presented in this thesis highlights the importance of different mechanisms, both behavioural and genomic, in regulating variation in fundamental social traits. Furthermore, it demonstrates the importance of understanding how mechanisms can bridge the gap between genotype and phenotype.

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Libri sul tema "Leptothrix"

1

Hope, Christopher Keith. Biological removal of manganese from groundwater: Laboratory modelling using Leptothrix discophora. Birmingham: University of Birmingham, 1998.

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2

Kintzinger-Reimann, Ellen. Zwei verschiedene Typen der Manganoxidation: Vergleichende physiologische Untersuchungen an dem Chlamydobakterium Leptothrix discophora und an manganoxidierenden kapselbildenden Pseudomonaden. [s.l.]: [s.n.], 1987.

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3

Johansen, Roberto M. El género Leptothrips Hood, 1909 (Thysanoptera, Phlaeothripidae) en el continente americano: Su sistemática, filogenia, biogeografía, biología, conducta y ecología. México, D.F: Universidad Nacional Autónoma de México, 1987.

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4

Trampus, Franc Igor. The effects of work force variation and conspecific preference in single and mixed-species colonies of Leptothorax longispinosus Roger and Leptothorax ambiguus Emergy (Hymenoptera: Formicidae: Leptothoracini). Ottawa: National Library of Canada, 1997.

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5

Terayama, M. Ant Genus Leptothorax Mayr (Hymenoptera : Formicidae) in Japan. Creative Media Partners, LLC, 2015.

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Capitoli di libri sul tema "Leptothrix"

1

Emerson, David. "Leptothrix". In Encyclopedia of Geobiology, 535–36. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-1-4020-9212-1_127.

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2

Spring, Stefan. "The Genera Leptothrix and Sphaerotilus". In The Prokaryotes, 758–77. New York, NY: Springer New York, 2006. http://dx.doi.org/10.1007/0-387-30745-1_35.

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3

Heinze, Jürgen. "Leptothorax". In Encyclopedia of Social Insects, 564–66. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-28102-1_73.

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4

Heinze, Jürgen. "Leptothorax". In Encyclopedia of Social Insects, 1–2. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-90306-4_73-1.

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5

"Characteristics of Biogenous Iron Oxide Microtubes Formed by Iron-Oxidizing Bacteria, Leptothrix Ochracea". In Handbook of Metal Biotechnology, 155–64. Jenny Stanford Publishing, 2011. http://dx.doi.org/10.1201/b11762-14.

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6

Herbers, Joan M. "Queen Number and Colony Ergonomics in Leptothorax longispinosus". In The Biology of Social Insects, 238–42. CRC Press, 2019. http://dx.doi.org/10.1201/9780429309113-50.

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7

al-Rifaie, Mohammad Majid, Ahmed Aber e John Mark Bishop. "Cooperation of Nature and Physiologically Inspired Mechanisms in Visualisation". In Biologically-Inspired Computing for the Arts, 31–58. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-4666-0942-6.ch003.

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Abstract (sommario):

A novel approach of integrating two swarm intelligence algorithms is considered, one simulating the behaviour of birds flocking (Particle Swarm Optimisation) and the other one (Stochastic Diffusion Search) mimics the recruitment behaviour of one species of ants – Leptothorax acervorum. This hybrid algorithm is assisted by a biological mechanism inspired by the behaviour of blood flow and cells in blood vessels, where the concept of high and low blood pressure is utilised. The performance of the nature-inspired algorithms and the biologically inspired mechanisms in the hybrid algorithm is reflected through a cooperative attempt to make a drawing on the canvas. The scientific value of the marriage between the two swarm intelligence algorithms is currently being investigated thoroughly on many benchmarks, and the results reported suggest a promising prospect (al-Rifaie, Bishop & Blackwell, 2011). It may also be discussed whether or not the artworks generated by nature and biologically inspired algorithms can possibly be considered as computationally creative.

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8

Stuart, Robin J., e Thomas M. Alloway. "Aberrant Yellow Ants: North American Leptothorax Species as Intermediate Hosts of Cestodes". In Advances in Myrmecology, 537–45. BRILL, 1988. http://dx.doi.org/10.1163/9789004630765_038.

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9

Stuart, Robin J., e Thomas M. Alloway. "Aberrant Yellow Ants: North American Leptothorax Species as Intermediate Hosts of Cestodes". In Advances in Myrmecology, 537–45. BRILL, 1988. http://dx.doi.org/10.1163/9789004630765_038.

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10

Francoeur, André, e Robert Loiselle. "The Male of Leptothorax wilda with Notes on the Subgenus Nesomyrmex (Formicidae, Hymenoptera)". In Advances in Myrmecology, 43–54. BRILL, 1988. http://dx.doi.org/10.1163/9789004630765_009.

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