Results 51 to 60 of about 628,044 (213)

Using petiole anatomy to identify hybrids between and species of Populus sections Aigeiros and Tacamahaca

open access: yesTurczaninowia, 2019
The article presents the results of the study of the petiole anatomy peculiarities of the hybrids between Aigeiros and Tacamahaca sections. Petiole anatomic structure was found to be helpful in assigning taxa to a section and to find intersectional ...
Boris Proshkin, Andrey Klimov
doaj   +1 more source

Hepatoid carcinoma of the ovary – A case report and literature review

open access: yesGynecologic Oncology Reports, 2020
We present the case of a 27-year old female with an ovarian tumor and alpha-fetoprotein (AFP) of 1210 ng/m, a right salpingo-oophorectomy was performed and had conservative complementary staging by gynecologic oncologists.
Ana Karla Uribe Rivera   +4 more
doaj   +1 more source

Are Species Social Objects? Some Notes

open access: yesRivista di Estetica, 2014
Although biological species might seem paradigmatic natural objects, several objections can be advanced against their independence from taxonomic activities and from scientific and social practices in general. Darwin himself, in the second chapter of the
Elena Casetta
doaj   +1 more source

Single strand conformation polymorphism (SSCP) detection in six genes in Portuguese indigenous sheep breed [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2001
Evaluation of the genetic diversity for six genes in forty animals of the Portuguese indigenous sheep breed (Ovis aries) ""Churra da Terra Quente"" was done.
Guedes-Pinto H.   +3 more
doaj  

Appraisal of species composition and ecology of Drosophilids in the Lower Swat Valley, Pakistan

open access: yesInternational Journal of Applied and Experimental Biology
The drosophilid fauna of Pakistan remains largely understudied with numerous cities in the country yet to be thoroughly surveyed. This study aimed to investigate the drosophilid fauna of tehsil Babuzai in the Lower Swat Valley, Pakistan.
Hamid Ur Rahman, Gulalai Hadi
doaj   +1 more source

Bacterial Community Structure after Long-term Organic and Inorganic Fertilization Reveals Important Associations between Soil Nutrients and Specific Taxa Involved in Nutrient Transformations

open access: yesFrontiers in Microbiology, 2017
Fertilization has a large impact on the soil microbial communities, which play pivotal roles in soil biogeochemical cycling and ecological processes.
Fang Li   +4 more
semanticscholar   +1 more source

Synopsis of Capparaceae to the flora of Colombia

open access: yesRodriguésia, 2019
A taxonomic synopsis of Capparaceae distributed in Colombia was carried out reviewing 1,800 botanical specimens from 13 herbaria in Colombia, five international institutions and close to 100 field collected specimens.
Jorge David Mercado-Gómez   +2 more
doaj   +1 more source

Flutuação Cambial e Taxa de Juros no Brasil*

open access: yesBrazilian Journal of Political Economy, 2020
RESUMO Este pequeno artigo mostra que desde 1999 a taxa de juros está correlacionada à volatilidade da taxa de câmbio no Brasil. Portanto, seria um dos motivos para não reduzir a taxa de juros no Brasil.
JOÃO SICSÚ
doaj   +1 more source

Updates on the Taxonomy of Mucorales with an Emphasis on Clinically Important Taxa

open access: yesJournal of Fungi, 2019
Fungi of the order Mucorales colonize all kinds of wet, organic materials and represent a permanent part of the human environment. They are economically important as fermenting agents of soybean products and producers of enzymes, but also as plant ...
G. Walther, Lysett Wagner, O. Kurzai
semanticscholar   +1 more source

Taxonomía: clasificación de los seres vivos

open access: yesRevista Facultad de Odontología Universidad de Antioquia, 1997
This article review the importance of taxonomy- of living beings. It presents basic information concerning different international recognized taxonomic techniques, from simple to more complex ones, whith enphasis in microorganisms, and particularly ...
Hugo Montoya-Villafañe
doaj  

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