SwePub
Tyck till om SwePub Sök här!
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Perez Ortega Sergio) srt2:(2015-2019)"

Sökning: WFRF:(Perez Ortega Sergio) > (2015-2019)

  • Resultat 1-6 av 6
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Zamora, Juan Carlos, et al. (författare)
  • Considerations and consequences of allowing DNA sequence data as types of fungal taxa
  • 2018
  • Ingår i: IMA Fungus. - : INT MYCOLOGICAL ASSOC. - 2210-6340 .- 2210-6359. ; 9:1, s. 167-185
  • Tidskriftsartikel (refereegranskat)abstract
    • Nomenclatural type definitions are one of the most important concepts in biological nomenclature. Being physical objects that can be re-studied by other researchers, types permanently link taxonomy (an artificial agreement to classify biological diversity) with nomenclature (an artificial agreement to name biological diversity). Two proposals to amend the International Code of Nomenclature for algae, fungi, and plants (ICN), allowing DNA sequences alone (of any region and extent) to serve as types of taxon names for voucherless fungi (mainly putative taxa from environmental DNA sequences), have been submitted to be voted on at the 11th International Mycological Congress (Puerto Rico, July 2018). We consider various genetic processes affecting the distribution of alleles among taxa and find that alleles may not consistently and uniquely represent the species within which they are contained. Should the proposals be accepted, the meaning of nomenclatural types would change in a fundamental way from physical objects as sources of data to the data themselves. Such changes are conducive to irreproducible science, the potential typification on artefactual data, and massive creation of names with low information content, ultimately causing nomenclatural instability and unnecessary work for future researchers that would stall future explorations of fungal diversity. We conclude that the acceptance of DNA sequences alone as types of names of taxa, under the terms used in the current proposals, is unnecessary and would not solve the problem of naming putative taxa known only from DNA sequences in a scientifically defensible way. As an alternative, we highlight the use of formulas for naming putative taxa (candidate taxa) that do not require any modification of the ICN.
  •  
2.
  •  
3.
  • Kehoe, Laura, et al. (författare)
  • Make EU trade with Brazil sustainable
  • 2019
  • Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 364:6438, s. 341-
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
  •  
4.
  • Ademuyiwa, Adesoji O., et al. (författare)
  • Determinants of morbidity and mortality following emergency abdominal surgery in children in low-income and middle-income countries
  • 2016
  • Ingår i: BMJ Global Health. - : BMJ Publishing Group Ltd. - 2059-7908. ; 1:4
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Child health is a key priority on the global health agenda, yet the provision of essential and emergency surgery in children is patchy in resource-poor regions. This study was aimed to determine the mortality risk for emergency abdominal paediatric surgery in low-income countries globally.Methods: Multicentre, international, prospective, cohort study. Self-selected surgical units performing emergency abdominal surgery submitted prespecified data for consecutive children aged <16 years during a 2-week period between July and December 2014. The United Nation's Human Development Index (HDI) was used to stratify countries. The main outcome measure was 30-day postoperative mortality, analysed by multilevel logistic regression.Results: This study included 1409 patients from 253 centres in 43 countries; 282 children were under 2 years of age. Among them, 265 (18.8%) were from low-HDI, 450 (31.9%) from middle-HDI and 694 (49.3%) from high-HDI countries. The most common operations performed were appendectomy, small bowel resection, pyloromyotomy and correction of intussusception. After adjustment for patient and hospital risk factors, child mortality at 30 days was significantly higher in low-HDI (adjusted OR 7.14 (95% CI 2.52 to 20.23), p<0.001) and middle-HDI (4.42 (1.44 to 13.56), p=0.009) countries compared with high-HDI countries, translating to 40 excess deaths per 1000 procedures performed.Conclusions: Adjusted mortality in children following emergency abdominal surgery may be as high as 7 times greater in low-HDI and middle-HDI countries compared with high-HDI countries. Effective provision of emergency essential surgery should be a key priority for global child health agendas.
  •  
5.
  • Divakar, Pradeep K., et al. (författare)
  • Evolution of complex symbiotic relationships in a morphologically derived family of lichen-forming fungi
  • 2015
  • Ingår i: New Phytologist. - : Wiley. - 0028-646X .- 1469-8137. ; 208:4, s. 1217-1226
  • Tidskriftsartikel (refereegranskat)abstract
    • We studied the evolutionary history of the Parmeliaceae (Lecanoromycetes, Ascomycota), one of the largest families of lichen-forming fungi with complex and variable morphologies, also including several lichenicolous fungi. We assembled a six-locus data set including nuclear, mitochondrial and low-copy protein-coding genes from 293 operational taxonomic units (OTUs). The lichenicolous lifestyle originated independently three times in lichenized ancestors within Parmeliaceae, and a new generic name is introduced for one of these fungi. In all cases, the independent origins occurred c. 24 million yr ago. Further, we show that the Paleocene, Eocene and Oligocene were key periods when diversification of major lineages within Parmeliaceae occurred, with subsequent radiations occurring primarily during the Oligocene and Miocene. Our phylogenetic hypothesis supports the independent origin of lichenicolous fungi associated with climatic shifts at the Oligocene-Miocene boundary. Moreover, diversification bursts at different times may be crucial factors driving the diversification of Parmeliaceae. Additionally, our study provides novel insight into evolutionary relationships in this large and diverse family of lichen-forming ascomycetes.
  •  
6.
  • Zhao, Xin, et al. (författare)
  • Towards a revised generic classification of lecanoroid lichens (Lecanoraceae, Ascomycota) based on molecular, morphological and chemical evidence
  • 2016
  • Ingår i: Fungal Diversity. - : Springer Science and Business Media LLC. - 1560-2745 .- 1878-9129. ; 78:1, s. 293-304
  • Tidskriftsartikel (refereegranskat)abstract
    • The phylogenetic relationship of lecanoroid lichens is studied using two data sets: 1) a 2-locus data set including 251 OTUs representing 150 species, and 2) a 6-locus data set with 82 OTUs representing 53 species. The genus Lecanora as currently circumscribed is shown to be highly polyphyletic and several genera, including Adelolecia, Arctopeltis, Bryonora, Carbonea, Frutidella, Lecidella, Miriquidica, Palicella, Protoparmeliopsis, Pyrrhospora, and Rhizoplaca are nested within Lecanora sensu lato. A core group of Lecanora is supported as monophyletic and includes species of the L. carpinea, L. rupicola, and L. subcarnea groups, and a core group of the L. subfusca group. Three monophyletic clades that are well supported in our analyses and well characterized by phenotypical characters are accepted here: 1) Myriolecis to accommodate the Lecanora dispersa group and Arctopeltis; 2) Protoparmeliopsis for the L. muralis group; and 3) Rhizoplaca is emended to include three placodioid taxa previously classified in Lecanora (L. novomexicana. L. opiniconensis, L. phaedrophthalma), whereas R. aspidophora and R. peltata are excluded from Rhizoplaca. The latter is transferred into Protoparmeliopsis. Lecidella is strongly supported as a monophyletic group. Our studies indicate the presence of additional clades of species currently placed in Lecanora sensu lato that warrant taxonomic recognition but additional data will be necessary before the circumscription of these entities is fully understood. 37 new combinations are proposed into the genera Myriolecis (30), Protoparmeliopsis (2), and Rhizoplaca (5).
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-6 av 6
Typ av publikation
tidskriftsartikel (6)
Typ av innehåll
refereegranskat (5)
övrigt vetenskapligt/konstnärligt (1)
Författare/redaktör
Zhang, Yan (1)
Ismail, Mohammed (1)
Korhonen, Laura (1)
Lindholm, Dan (1)
Vertessy, Beata G. (1)
Larsson, Ellen, 1961 (1)
visa fler...
Svantesson, Sten (1)
Kõljalg, Urmas (1)
Saar, Irja (1)
Ghobad-Nejhad, Masoo ... (1)
Pawlowska, Julia (1)
Truong, Camille (1)
Suija, Ave (1)
Peintner, Ursula (1)
Wang, Mei (1)
Wang, Xin (1)
Rothhaupt, Karl-Otto (1)
Liu, Yang (1)
Kumar, Rakesh (1)
Wang, Dong (1)
Mohammed, Ahmed (1)
Li, Ke (1)
Liu, Ke (1)
Zhang, Yang (1)
Salah, Omar (1)
Nàgy, Péter (1)
Weigend, Maximilian (1)
Kominami, Eiki (1)
van der Goot, F. Gis ... (1)
Borovicka, Jan (1)
Farrell, Katharine N ... (1)
Bonaldo, Paolo (1)
Gunnarsson, Ulf (1)
Adams, Christopher M (1)
Minucci, Saverio (1)
Vellenga, Edo (1)
Svensson, Måns (1)
Ademuyiwa, Adesoji O ... (1)
Arnaud, Alexis P. (1)
Drake, Thomas M. (1)
Fitzgerald, J. Edwar ... (1)
Poenaru, Dan (1)
Bhangu, Aneel (1)
Harrison, Ewen M. (1)
Fergusson, Stuart (1)
Glasbey, James C. (1)
Khatri, Chetan (1)
Mohan, Midhun (1)
Nepogodiev, Dmitri (1)
Soreide, Kjetil (1)
visa färre...
Lärosäte
Lunds universitet (5)
Sveriges Lantbruksuniversitet (4)
Umeå universitet (2)
Karolinska Institutet (2)
Naturhistoriska riksmuseet (2)
Göteborgs universitet (1)
visa fler...
Kungliga Tekniska Högskolan (1)
Uppsala universitet (1)
Stockholms universitet (1)
Linköpings universitet (1)
Mittuniversitetet (1)
Södertörns högskola (1)
Chalmers tekniska högskola (1)
visa färre...
Språk
Engelska (6)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (5)
Medicin och hälsovetenskap (2)
Teknik (1)
Samhällsvetenskap (1)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy