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31532. The methodology of clinical analysis of electric heart field
- Creator:
- Stojan, M., Boudík, F., Anger, Z., and Charvát, A.
- Type:
- article, model:article, and TEXT
- Subject:
- electric heart field, electrocardiography, vectorcardiography, diagram of potential maxima/minima, and body surface mapping
- Language:
- English
- Description:
- A brief description of the methodology of analysis of the electric heart field using electrocardiograms, vectorcardiograms, diagrams of potential maxima/minima and body surface potential maps is presented. The text is focused on the description of different kinds of isopotential and isointegral maps and their diagnostic possibilities. A detailed description of the diagram of potential maxima/minima and its place in diagnostic of different disturbances of the heart muscle and conduction defects is given.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
31533. The microecology of dactylogyrids (Monogenea: Dactylogyridae) on the gills of wild spotted rose snapper Lutjanus guttatus (Lutjanidae) from Mazatlan Bay, Mexico
- Creator:
- Soler-Jiménez, Lilia C. and Fajer-Ávila, Emma J.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- microhabitat, distribution, Pacific coast, Euryhaliotrema perezponcei, Euryhaliotrematoides sp., Haliotrematoides spinatus, Haliotrematoides plectridium, and Haliotrematoides guttati
- Language:
- English
- Description:
- The spatial distribution and coexistence of monogenean dactylogyrids was assessed on the gills of 63 specimens of wild spotted rose snapper, Lutjanus guttatus (Steindachner), caught in the Mazatlan Bay, Sinaloa, Mexico. Five species are reported: Euryhaliotrema perezponcei García-Vargas, Fajer-Ávila et Lamothe-Argumedo, 2008, Euryhaliotrematoides sp., Haliotrematoides spinatus Kritsky et Mendoza-Franco, 2009, H. plectridium Kritsky et Mendoza-Franco, 2009, and H. guttati García-Vargas, Fajer-Ávila et Lamothe-Argumedo, 2008. All except E. perezponcei and H. guttati represent new geographical records for the Pacific coast. The most prevalent dactylogyrid species was E. perezponcei (100%), H. plectridium and H. spinatus had >80% prevalence, and H. guttati and Euryhaliotrematoides sp. had the lowest prevalence. The mean abundance of H. plectridium and E. perezponcei was close to 60 parasites/fish, whereas Euryhaliotrematoides sp. and H. guttati had the lowest abundance. The dactylogyrid species exhibited a tendency for attachment to gill arch 2: 25% attachment occurring on gill arch 1, 30% on 2, 27% on 3 and 18% on 4, and showed a significant preference for the central sector of the gill (42%). Haliotrematoides plectridium had a preference for attachment to gill arches 2 and 3 and the central sector. Haliotrematoides spinatus tended to settle on the gill arches 2 and 3 and had a preference for the central sector. Euryhaliotrema perezponcei tended to settle on the gill arches 1 and 2 and the anterior gill sector. Euryhaliotrematoides sp. and H. guttati did not show a preference for any gill arch or sector. The intraspecific aggregation was stronger than the interspecific aggregation, indicating that all the dactylogyrid species on spotted rose snapper were aggregated, and there was no evidence of competition among the species.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
31534. The microRNA-23a has limited roles in bone formation and homeostasis in vivo
- Creator:
- Park, J., Wada, S., Ushida, T., and Akimoto, T.
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Fyziologie člověka a srovnávací fyziologie, RNA (nukleové kyseliny), ribonucleic acids, non-coding RNA, runx2, satb2, micro-CT, 14, and 612
- Language:
- English
- Description:
- Recent studies have demonstrated that some microRNAs (miRNAs) inhibit bone formation by inhibiting the translation of specific genes. Several in vitro studies have suggested that miR - 23a inhibits osteogenic differentiation by suppressing the translation of Runx2, a transcription factor essential for osteoblastogenesis, and of Sa tb2, a member of the special AT-rich binding protein family. In the pr esent study, we used a gain -of-function approach to determine the roles of miR -23a in bone formation and homeostasis in vivo . The miR -23a transgenic (Tg) mice grew normally and their body size and weight were similar to those of wild -type (WT) littermates. Bone structure and morphology were similar in Tg and WT mice. Furthermore, the numbers of osteoblasts and osteoclasts, as well as their activities in bone were similar between Tg and WT mice. Our results indicate that miR -23 has limited roles in bone form ation and maintenance in vivo in mice., J. Park, S. Wada, T. Ushida, T. Akimoto., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
31535. The Middle Euphrates: a topographical itinerary
- Creator:
- Musil, Alois and Česká akademie věd a umění
- Publisher:
- American Geographical Society
- Format:
- print, svazek, and xv, 426 stran, 2 mapy.
- Type:
- model:monograph and TEXT
- Subject:
- Geografie jako věda. Výzkum. Cestování, cestování, objevné cesty, výzkumné expedice, dějiny, regionální geografie, Eufrat (řeka : oblast), 910.4, 910.3/.4, 913, (560)(567)(569.1), (0:82-992), 7, and 91
- Language:
- English
- Description:
- by Alois Musil. and Published under the patronage of the Czech Academy of Sciences and Arts
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
31536. The mineralogical research of manganese-phosphate crusts in the region of Hodušín - Božetice at Milevsko
- Creator:
- Brož, Miroslav, Kovářová, Miloslava, Zdeněk Losos, Linhartová, Marcela, and Václav Vávra
- Format:
- print, bez média, and svazek
- Type:
- article, články, model:article, and TEXT
- Subject:
- Geologie. Meteorologie. Klimatologie, fosfáty, phosphates, Hodušín (Opařany, Česko), Božetice (Česko), Česko, Hodušín (Opařany, Czechia), Czechia, Božetice (Czechia), Moldanubicum, variegated rock group of Sušice and Votice, apatite, weathering crusts, Mn-minerals, co-pyrolysis, wastes, 7, and 551
- Language:
- English
- Description:
- A mineralogical study of the weathering crusts rich in P and Mn from the locality Hodušín - Božetice at Milevsko is presented. The locality belongs to the central part of the variegated group of Sušice and Votice in the Moldanubian Unit. From the analytical methods used, the IR-spectroscopy yielded satisfactory results. The main crust components subjected to weathering are apatite (of a CarHap B - dahllite type) and Mn-minerals (massive black psilomelane, the needle-aggregates probably comprise a poorly recrystallized psilomelane). Disintegrated rocks consist of a mixture of clay minerals, calcite and relicts of primary minerals (quartz, K-feldspars, albite, pyroxene and rutile). The origin and the source material of these crusts rich in P and Mn can not be unambiguously determined. Apatites without CL-effects indicate that the weathering crusts have originated in a strongly oxidative environment. Well documented neighbouring occurrences of phosphate minerals in the variegated group of Sušice and Votice are associated with graphitic rocks. Optical and quantitative chemical analyses of the rocks suggest that the source of apatite could possible be calc-silicate rocks (erlans) close to the graphitic rocks. Hypothetically, the metaphosphorite layers in the variegated Moldanubian Unit can also be considered a possible source of phosphorus., M. Brož, M. Kovářová, Z. Losos, M. Linhartová and V. Vávra., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
31537. The mitochondrial genome of the Mediterranean flour moth, Ephestia kuehniella (Lepidoptera: Pyralidae), and identification of invading mitochondrial sequences (numts) in the W chromosome
- Creator:
- Lämmermann, Katrin, Vogel, Heiko, and Traut, Walther
- Format:
- print, počítač, and online zdroj
- Type:
- article, články, journal articles, model:article, and TEXT
- Subject:
- Zoologie, motýli, zavíječovití, fylogeneze, butterflies, Pyralidae, phylogeny, Ephestia kuehniella, mitogenome, Mediterranean flour moth, numts, W chromosome, 2, and 59
- Language:
- English
- Description:
- The Mediterranean flour moth, Ephestia kuehniella is a widespread pest of stored products and a classical object in experimental biology. In the present study, we determined its complete mitochondrial genome sequence. The genome is circular, consists of 15,327 bp and comprises 13 protein-coding, 2 rRNA- and 22 tRNA-coding genes in an order typical for the Ditrysia clade of the order Lepidoptera. A phylogenetic study of the Lepidoptera based on complete mitochondrial genomes places E. kuehniella correctly in the family Pyralidae and supports major lepidopteran taxa as phylogenetic clades. The W chromosome of E. kuehniella is an exceptionally rich reservoir of originally mitochondrial sequences (numts). Around 0.7% of the W DNA was found to be of mitochondrial origin, 83% of the mitogenome sequence was represented between 1-11 × in the W chromosome. Phylogenetic analysis further revealed that these numts are an evolutionary recent acquisition of the W chromosome., Katrin Lämmermann, Heiko Vogel, Walther Traut., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
31538. The Model latinpipe-evalatin24-240520 for LatinPipe 2024
- Creator:
- Straka, Milan, Straková, Jana, and Gamba, Federica
- Publisher:
- Charles University, Faculty of Mathematics and Physics, Institute of Formal and Applied Linguistics (UFAL)
- Type:
- tool and toolService
- Subject:
- LatinPipe, EvaLatin 2024, POS tagging, lemmatization, and dependency parsing
- Language:
- Latin
- Description:
- The latinpipe-evalatin24-240520 is a PhilBerta-based model for LatinPipe 2024 <https://github.com/ufal/evalatin2024-latinpipe>, performing tagging, lemmatization, and dependency parsing of Latin, based on the winning entry to the EvaLatin 2024 <https://circse.github.io/LT4HALA/2024/EvaLatin> shared task. It is released under the CC BY-NC-SA 4.0 license.
- Rights:
- Creative Commons - Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0), http://creativecommons.org/licenses/by-nc-sa/4.0/, and PUB
31539. The moderating role of population succession in the adaptive responses of Synechococcus assemblages: evidence from light intensity simulation experiment
- Creator:
- Wang, T., Chen, X., Li, J.L., Qin, S., Cui, Y.L., and Xu, F.
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- enrichment culture, genomics, irradiance, metatranscriptomics, and picocyanobacteria
- Language:
- Multiple languages
- Description:
- Synechococcus is one of the most abundant photoautotrophic picoplankton in the marine ecosystem. However, it is not clear how Synechococcus assemblages respond to light intensity variation in a genus group. Here, enriched Synechococcus assemblages from in situ coastal seawater were subjected to light intensity simulation experiments in a range of 9-243 μmol(photon) m-2 s-1. Characteristics concerning physiology, genomics, and metatranscriptomics were analyzed. Physiologically, the fitting model predicted photosynthesis indications and pigment contents increased with different trends following the light intensity. Genomic sequencing demonstrated that both the phylogenetic and phenotypic compositions of Synechococcus assemblage exhibited population succession. Especially, the proportion of Synechococcus pigment type 2 was changed significantly. In metatranscriptomics, most genes were downregulated in the high-light intensity group, while photosynthesis-related genes were entirely upregulated. The high upregulation of photosynthesis-related genes, such as psbO, psbA, apcB, and cpcB, corresponded to the succession of Synechococcus genotype and was responsible for the physiological shift in response to light intensity.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
31540. The modification of spiral case and impeller of mixed flow pump
- Creator:
- Klas, Roman and Pochylý, František
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- impeller, spiral case, Y-Q characteristic curve, instability, and discharge
- Language:
- English
- Description:
- This paper is aimed at differences in designs of spiral case and impeller of mixed flow pump with regard to suppression of Y-Q characteristic curves instability, pressure pulsations and especially to achieving necessary delivery head. The differences between new and old conception will be explained. The reasons of these differences with regard to flow in pump interior, hydraulic losses, static pressures and velocities will be explained as well.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public