Search results for "CoV"

showing 10 items of 9749 documents

A global perspective on the climate‐driven growth synchrony of neighbouring trees

2020

2 .pdf files: File 1. Author's article final version, Post-Print (19 Pags.- 4 Figs.- 2 Tabls.). File 2. Supplementary Materials (3 Figs.- 2 Tabls.- 1 Model Equation).

0106 biological sciencesGlobal and Planetary ChangeEcologyForest dynamicsEcologytree stress indicator010604 marine biology & hydrobiologyGlobal warmingCovarianceCarbon sequestrationtree-ringglobal010603 evolutionary biology01 natural sciencesSynchronyProductivity (ecology)DendrochronologyEnvironmental sciencePhysical geographyPrecipitationTemperate rainforestEcology Evolution Behavior and Systematics
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The role of ethnobotanics in scientific research. State of ethnobotanical knowledge in Sicily.

2000

This contribution deals with the traditional use of plants of the Sicilian flora. Special attention is given to the species used in popular medicine. Moreover, the importance of ethnobotanics in scientific research and its role in toxicology are shown.

PharmacologyFloraPlants MedicinalTraditional medicinebusiness.industrymedia_common.quotation_subjectResearchEthnobotanyGeneral Medicinelanguage.human_languageState (polity)EthnobotanyDrug DiscoverylanguageMedicineHumansTraditional UseMedicine TraditionalSocial sciencebusinessSicilianEthnomedicineSicilymedia_commonPhytotherapyFitoterapia
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Impact of COVID-19 of restaurant and bars

2021

Bakalaura darba tēma: “Covid-19 ietekme uz restorānu un bāru darbību” Covid-19 pandēmija izraisīja globālu krīzi visā pasaulē. Covid-19 pandēmijas izraisītā krīze ir izaicinājums ne tikai iedzīvotājiem, bet arī valsts tautsaimniecībai kopumā. Valdībai bija strauji jāsagatavo atbalsta instrumenti tiem, kurus epidemioloģiskās drošības ieviestie regulējumi skāra visvairāk, vistiešāk. Bakalaura darba mērķis: ir izpētīt Covid-19 ietekmi uz restorānu un bāru darbību, izdarīt secinājumus un sniegt priekšlikumus Covid-19 ietekmes mazināšanā. Bakalaura darbs sastāv no trīs nodaļām, pirmajā nodaļā tiek pētīta Covid-19 ietekme uz restorānu un bāru darbību no teorētiskā aspekta. Otrajā nodaļā tiek veik…

Covid-19 ierobežošanaFinanšu analīzeEkonomikaValsts atbalsts Covid-19 laikāCovid-19Covid-19 ietekme uz restorānu un bāru darbību
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Analysis of antibody profile and correlation with disease severity in COVID-19 patients

2021

Antivielu atbildei ir būtiska loma cīņā ar SARS-CoV-2 infekciju un uz to noteikšanu balstās epidemioloģiskie pētījumi, kas ļauj spriest par vīrusa izplatību. Ar pašlaik pieejamo antivielu testu palīdzību var noteikt antivielas pret šī vīrusa S un N proteīniem, bet tās var veidoties arī pret citiem vīrusa antigēniem, taču to prevalence un funkcionālā loma nav zināma. Šajā darbā tika izstrādāts antigēnu mikrorindu tests, kas satur 30 SARS-CoV-2 antigēnus vai to fragmentus un ar tā palīdzību 103 COVID-19 pacientos izpētīta IgG, IgA, IgM un IgE antivielu veidošanās dinamika un prevalence. Rezultāti parādīja, ka pacientiem ar smagu un vidēji smagu slimības gaitu ir ievērojami augstāki IgG, IgA u…

Antivielu profilsSARS-CoV-2IgGIgEBioloģijaIgA
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La recolección de vegetales por los grupos humanos durante el Paleolítico superior. Frutos, semillas, tallos y hojas de la Cova de les Cendres (Teula…

2019

Las sociedades paleolíticas basaron su economía en la explotación del medio natural, utilizando los recursos bióticos, tanto vegetales como animales, y los abióticos, como los minerales. Sin embargo, fruto de la conservación diferencial, entre otros factores, la caza ha sido la actividad de subsistencia más destacada en la investigación prehistórica, así como la elaboración y el empleo de útiles líticos. Por tanto, el objetivo central de esta Tesis Doctoral es demostrar el uso y la importancia de los recursos vegetales para los grupos cazadores-recolectores a lo largo del Paleolítico. A pesar del aparente vacío documental sobre esta cuestión, las evidencias disponibles van en aumento, graci…

paleolitico superiorUNESCO::HISTORIAsemillas y frutosrecursos vegetalescova de les cendres:HISTORIA [UNESCO]recoleccióntafonomía
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A new synthesis of soluble poly(1,4-phenylenevinylene)s and poly(2,5-pyrimidinylenevinylene)s

1991

Abstract Alkoxy-substituted 4-methylbenzylideneanilines 2a-f and their pyrimidine analogues 2g,h show an efficient selfcondensation in the alkaline medium KOC(CH 3 ) 3 /DMF. The totally stereoselective reaction yields 3a-h which are transformed by acidic work-up to 4a-h . A narrow distribution of the molecular weight can be achieved.

chemistry.chemical_classificationPyrimidine analoguechemistryOrganic ChemistryDrug DiscoveryPolymer chemistryOrganic chemistryStereoselectivityPolymerSelf-condensationBiochemistryTetrahedron Letters
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Crónica de una pandemia: confinamiento en Castelló de la Plana, España

2021

Este artículo presenta los resultados de una investigación comenzada a raíz de la declaración del estado de alarma en España (Real Decreto [RD] No. 463/2020, de 14 de marzo) después que la Organización Mundial de la Salud (OMS) declarase la enfermedad por coronavirus 2019 (COVID-19) como pandemia el día 11 de marzo de 2020. Este decreto limitaba la libre circulación de las personas, así como el derecho de reunión, tanto en lugares públicos como privados, además de imponer la obligatoriedad de mantener una distancia de seguridad entre los individuos y la limitación del aforo en aquellos establecimientos que permanecían abiertos, entre otras medidas. Todo ello supuso un cambioen las rutinas d…

DecreeCoronavirus disease 2019 (COVID-19)General Arts and HumanitiesPolitical sciencePandemicGeneral Social SciencesLimitingObligationUrban landscapeFree movementHumanitiesWorld healthSociedade e Cultura
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Efficient alkali iodide promoted 18F-fluoroethylations with 2-[18F]fluoroethyl tosylate and 1-bromo-2-[18F]fluoroethane

2003

Abstract Radiochemical 18 F-fluorination yields of several compounds using the secondary labelling precursors 2-[ 18 F]fluoroethyl tosylate ([ 18 F]FETos) and 1-bromo-2-[ 18 F]fluoroethane ([ 18 F]BFE) could be considerably enhanced by the addition of an alkali iodide. The radiochemical yield of [ 18 F]fluoroethyl choline for example could be doubled with [ 18 F]BFE and increased from 13% to ≈80% with [ 18 F]FETos. By addition of alkali iodide to the precursor, the 18 F-fluoroethylation yields of established radiopharmaceuticals, especially in the case of automated syntheses, could be significantly increased without major changes of the reaction conditions.

chemistry.chemical_classificationReaction conditionsOrganic ChemistryIodideAlkali metalBiochemistrychemistry.chemical_compoundFluoroethyl tosylatechemistryYield (chemistry)LabellingDrug DiscoveryCholineFluoroethylNuclear chemistryTetrahedron Letters
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Brominated Azaphilones from the Sponge-Associated Fungus Penicillium canescens Strain 4.14.6a

2019

The fungus Penicillium canescens was isolated from the inner tissue of the Mediterranian sponge Agelas oroides. Fermentation of the fungus on solid rice medium yielded one new chlorinated diphenyl ether (1) and 13 known compounds (2-14). Addition of 5% NaBr to the rice medium increased the amounts of 4-6, while lowering the amounts of 8, 12, and 14. Furthermore, it induced the accumulation of 17 and two new brominated azaphilones, bromophilones A and B (15 and 16). Compounds 15 and 16 are the first example of azaphilones with the connection of a benzene moiety and the pyranoquinone core through a methylene group. The structures of the new compounds were elucidated based on the 1D and 2D NMR…

PharmacologyBicyclic molecule010405 organic chemistryStereochemistryOrganic ChemistryAbsolute configurationPharmaceutical ScienceEther01 natural sciences0104 chemical sciencesAnalytical Chemistry010404 medicinal & biomolecular chemistryPigmentchemistry.chemical_compoundComplementary and alternative medicinechemistryPenicillium canescensvisual_artDrug Discoveryvisual_art.visual_art_mediumMolecular MedicineMoietyFermentationMethyleneJournal of Natural Products
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�ber die Ursache spontaner Fibrillationen denervierter Skeletmuskulatur

1960

Auf Grund von Versuchen an innervierter und chronisch denervierter Skeletmuskulatur (Zwerchfell der Ratte) wird eine Erklarung fur das Auftreten von spontanen Fibrillationen nach Ausfall des peripheren motorischen Neurons gegeben. Hierzu werden Messungen der Membranund Aktionspotentiale, der intracellularen Kalium-, Natriumund Chloridkonzentrationen und der spezifischen Kaliumpermeabilitat der Muskelzellmembran herangezogen. Nach der Denervation sinkt das Ruhemembranpotential vorwiegend auf Grund der verminderten Kaliumpermeabilitat und ruckt von dem konstant bleibenden Kaliumgleichgewichtspotential ab. Hiermit wird das Auftreten einer postexcitatorischen Hyperpolarisationsphase mit anschli…

Gynecologymedicine.medical_specialtyChemistryDrug DiscoverymedicineMolecular MedicineGeneral MedicineGenetics (clinical)Klinische Wochenschrift
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