12,213 research outputs found
Melaminivora jejuensis sp. nov., isolated from Swinery waste
No full textKim, Ji-Young, Park, So-Hyun, Lee, Dong-Heon, Song, Gwanpil, Kim, Young-Ju (2018): Melaminivora jejuensis sp. nov., isolated from Swinery waste. International Journal of Systematic and Evolutionary Microbiology 68 (1): 9-13, DOI: 10.1099/ijsem.0.002294, URL: http://dx.doi.org/10.1099/ijsem.0.00229
A new species of Aleurolobus Quaintance et Baker (Homoptera, Aleyrodidae) from Southern Europe.
No full textAleurolobus teucrii n. sp. is described from southern Italy and the Maltese Islands (Central Mediterranean). The species seems to be monophagous on Teucrium fruticans L. A key to the European species of this genus (A. niloticus Priesner et Hosny, A. olivinus (Silvestri), A. wunni (Ryberg) and A. teucrii n. sp.) is provided.peer-reviewe
Fig. 1 in Melaminivora jejuensis sp. nov., isolated from Swinery waste
No full textFig. 1. Neighbour-joining phylogenetic tree, based on 16S rRNA gene sequences, showing the position of strain KBB12T within the family Comamonadaceae. Bootstrap values (>70 %) based on 1000 replications are shown at the nodes. Burkholderia cepacia ATCC 25416T was used as an out-group. Black circles indicate that the corresponding branches were also recovered in trees obtained by the maximum parsimony and the maximum likelihood methods. Bar, 0.01 substitutions per nucleotide position.Published as part of Kim, Ji-Young, Park, So-Hyun, Lee, Dong-Heon, Song, Gwanpil & Kim, Young-Ju, 2018, Melaminivora jejuensis sp. nov., isolated from Swinery waste, pp. 9-13 in International Journal of Systematic and Evolutionary Microbiology 68 (1) on page 11, DOI: 10.1099/ijsem.0.002294, http://zenodo.org/record/604841
Mosquito Larvicidal Constituents from Lantana Viburnoides SP Viburnoides Var Kisi (A. rich) Verdc (Verbenaceae).
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Lantana viburnoides sp viburnoides var kisi is used in Tanzania ethnobotanically to repel mosquitoes as well as in traditional medicine for stomach ache relief. Bioassay-guided fractionation and subtraction bioassays of the dichloromethane extract of the root barks were carried out in order to identify the bioactive components for controlling Anopheles gambiae s.s. mosquito larvae. Twenty late III or early IV instar larvae of An. gambiae s.s. were exposed to various concentrations of the plant extracts, fractions, blends and pure compounds, and were assayed in the laboratory by using the protocol of WHO 1996. Mean mortalities were compared using Dunnett's test (p < 0.05) and lethal concentration calculated by Lackfit Inversel of the SAS programme. The crude extract (LC50 = 7.70 ppm in 72 h) and fractions exhibited different level of mosquito larvicidal activity with subtraction of some fractions resulting in activity enhancement. The active fractions contained furanonaphthaquinones regio-isomers (LC50 = 5.48-5.70 ppm in 72 h) and the lantadene triterpenoid camaric acid (LC50 = 6.19 ppm in 72 h) as active principles while the lupane triterpenoid betulinic acid (LC50 < 10 ppm in 72 h) was obtained from the least active fraction. Crude extracts and some fractions had higher or comparable larvicidal activity to the pure compounds. These results demonstrate that L. viburnoides sp viburnoides var kisi extracts may serve as larvicides for managing various mosquito habitats even in their semi-purified form. The isolated compounds can be used as distinct markers in the active extracts or plant materials belonging to the genus Lantana
Thermotoga lettingae sp. nov., a novel thermophilic, methanol-degrading bacterium isolated from a thermophilic anaerobic reactor
No full textA novel, anaerobic, non-spore-forming, mobile, Gram-negative, thermophilic bacterium, strain TMO(T), was isolated from a thermophilic sulfate-reducing bioreactor operated at 65 degrees C with methanol as the sole substrate. The G C content of the DNA of strain TMO(T) was 39.2 molÐThe optimum pH, NaCl concentration, and temperature for growth were 7.0, 1.0°and 65 degrees C, respectively. Strain TMO(T) was able to degrade methanol to CO(2) and H(2) in syntrophic culture with Methanothermobacter thermautotrophicus DeltaH or Thermodesulfovibrio yellowstonii. Thiosulfate, elemental sulfur, Fe(III) and anthraquinone-2,6-disulfonate were able to serve as electron acceptors during methanol degradation. In the presence of thiosulfate or elemental sulfur, methanol was converted to CO(2) and partly to alanine. In pure culture, strain TMO(T) was also able to ferment methanol to acetate, CO(2) and H(2). However, this degradation occurred slower than in syntrophic cultures or in the presence of electron acceptors. Yeast extract was required for growth. Besides growing on methanol, strain TMO(T) grew by fermentation on a variety of carbohydrates including monomeric and oligomeric sugars, starch and xylan. Acetate, alanine, CO(2), H(2), and traces of ethanol, lactate and alpha-aminobutyrate were produced during glucose fermentation. Comparison of 16S rDNA genes revealed that strain TMO(T) is related to Thermotoga subterranea (98€and Thermotoga elfii (98Ž The type strain is TMO(T) (=DSM 14385(T)=ATCC BAA-301(T)). On the basis of the fact that these organisms differ physiologically from strain TMO(T), it is proposed that strain TMO(T) be classified as a new species, within the genus Thermotoga, as Thermotoga lettingae
Transoral robotic surgery in oropharyngeal squamous cell carcinoma: a comparative study between da Vinci Single-Port and da Vinci Xi systems
No full textBackground: The recently developed da Vinci single-port (SP) system offers potential advantages in maneuverability within narrower surgical spaces. This study aims to compare intra- and post-operative outcomes, technical advantages, and limitations of transoral resections using the da Vinci SP and da Vinci Xi systems for oropharyngeal squamous cell carcinoma (OPSCC).Methods: A single-center retrospective cohort study included patients with OPSCC who underwent transoral robotic surgery (TORS) after neoadjuvant chemotherapy (NCT). Data on pre-operative variables, intraoperative data, postoperative complications, and functional outcomes were collected.Results: A total of 209 patients (males: 175; mean age: 59.0 +/- 9.3) were included (SP: n = 136; Xi: n = 73). A significantly lower docking time was measured for the SP group (5.7 +/- 2.5 min vs. 10.0 +/- 4.4 min; p <.001). Similarly, the console time was reduced for the SP group though not reaching statistical significance (76.3 +/- 30.7 min vs. 88.1 +/- 36.9 min; p =.06). A greater proportion of patients showed wide negative resection margins in the SP group (71 % vs. 56 %; p =.10), although not statistically significant. No significant differences were observed in complication rates or postoperative functional outcomes.Discussion: This study demonstrates the safety and efficacy of the da Vinci SP system in oropharyngeal surgery, with potential advantages in terms of reduced docking and console times. The findings suggest that the SP system offers improved maneuverability and instrument placement compared to the da Vinci Xi system
Data Science Education: The Signal Processing Perspective [SP Education]
No full textIn the last decade, the signal processing (SP) community has witnessed a paradigm shift from model-based to data-driven methods. Machine learning (ML) - more specifically, deep learning - methodologies are nowadays widely used in all SP fields, e.g., audio, speech, image, video, multimedia, and multimodal/multisensor processing, to name a few. Many data-driven methods also incorporate domain knowledge to improve problem modeling, especially when computational burden, training data scarceness, and memory size are important constraints.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Signal Processing System
Melaminivora jejuensis Kim & Park & Lee & Song & Kim 2018, SP. NOV.
No full textDESCRIPTION OF MELAMINIVORA JEJUENSIS SP. NOV. Melaminivora jejuensis (je.ju.en′ sis. N.L. fem. adj. jejuensis pertaining to Jeju, Republic of Korea, from where the type strain was isolated). *Summed feature 1 contained C13: 0 3-OH/iso C15: 1 I/H; summed fea- ture 3 contained iso-C15: 0 2-OH and/or C16: 1 Ɯ 7 c and summed feature 7 contained C19: 1 cyclo Ɯ 10 c and/or C19: 1 Ɯ 6 c. 18: 1 *Data from Wang et al. [1]. Denitrifying, 0.5–0.7 µm (width)×2.0–3.5 µm (length), as assessed in 3 day-old cultures grown at 30 Ǫ C on TSA. Optimum growth is observed at 30–37 Ǫ C, at pH 7–8 and in the presence of 0–1 % NaCl (w/v). Hydrolyses gelatin and Tweens 20, 40, and 80, but does not hydrolyse casein, urea, Tween 60, tyrosine, aesculin and starch. Utilizes N -acetyl galatosamine, N -acetyl glucosamine, N -acetyl mannosamine, D- arabitol, adipate, glucuronamide, gluconate, myo - inositol, lactulose, malate, maltose, D- mannose, palatinose, raffinose, D- sorbitol, sucrose, bromosuccinic acid, b-hydroxybutyric acid, malic acid and succinamic acid. Produces alkaline phosphatase, esterase (C4), esterase lipase (C8), leucine arylamidase, valine arylamidase, cystine arylamidase and naphthol-AS-BI-phosphohydrolase, but does not produce lipase (C14), trypsin, a- chymotrypsin, a- galactosidase, b- galactosidase, b- glucuronidase, a-glucosidase, b-glucosidase, N -acetyl-b- glucosaminidase, a- mannosidase, a- fucosidase, arginine dihydrolase, lysine decarboxylase or ornithine decarboxylase. Susceptible to ampicillin, cephalothin, chloramphenicol, gentamicin, kanamycin, neomycin, penicillin G, polymyxinB and tetracycline. The major fatty acids are (iso-C 15: 0 2-OH and/or C 16: 1 Ɯ 7 c), C 16: 0 and C Ɯ 7 c. The polar lipids are phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol and an unidentified lipid. The type strain, KBB12 T (=KCTC 32230 T = JCM 18740 T), was isolated from swinery sludge in Jeju, Republic of Korea. The DNA G+C content of the type strain is 69.6 mol%.Published as part of Kim, Ji-Young, Park, So-Hyun, Lee, Dong-Heon, Song, Gwanpil & Kim, Young-Ju, 2018, Melaminivora jejuensis sp. nov., isolated from Swinery waste, pp. 9-13 in International Journal of Systematic and Evolutionary Microbiology 68 (1) on pages 11-12, DOI: 10.1099/ijsem.0.002294, http://zenodo.org/record/604841
Screening of biodiesel production from waste tuna oil (Thunnus sp.), seaweed Kappaphycus alvarezii and Gracilaria sp.
No full textBiodiesel has several advantages over solar. Compared to solar, biodiesel has more eco-friendly characteristic
and produces lower greenhouse gas emissions. Biodiesel that is made from animal fats can be produced from fish oil,
while other alternative sources from vegetable oils are seaweed Kappaphycus alvarezii and Gracilaria sp. Waste tuna oil
(Thunnus sp.) in Indonesia is commonly a side product of tuna canning industries known as tuna precook oil; on the other
hand, seaweed Gracilaria sp. and Kappaphycus alvarezii are commonly found in Indonesia’s seas. Seaweed waste that
was used in the present study was 100 kg and in wet condition, and the waste oil was 10 liter. The seaweed was extracted
with soxhletation method that used n-hexane as the solvent. To produce biodiesel, trans esterification was performed on
the seaweed oil that was obtained from the soxhletation process and waste tuna oil. Biodiesel manufactured from
seaweed K. alvarezii obtained the best score in flash point, freezing point, and viscosity test. However, according to level
of manufacturing efficiency, biodiesel from waste tuna oil is more efficient and relatively easier compared to biodiesel
from waste K. alvarezii and Gracilaria sp
Fig. 6. (a) Streptomyces sp. strain AF1 (left, Author collection) and (b) Streptomyces rochei strain AB1 (right, compared to [24])
No full textStreptomyces sp. strain AF1 (left, Author collection) and (b) Streptomyces rochei strain AB1 (right, compared to [24]
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