Results 91 to 100 of about 1,199,789 (259)

Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands

open access: yesNordic Journal of Botany, EarlyView.
Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz   +3 more
wiley   +1 more source

Treasures of the Serra da Jiboia (Bahia, Brazil): a new species of Racinaea and an overview of the local Bromeliaceae flora

open access: yesNordic Journal of Botany, EarlyView.
Serra da Jiboia, located in the south‐central region of Bahia, represents an important ecotone between the Atlantic Forest and the Caatinga and harbors high floristic diversity and numerous endemic species. The Bromeliaceae family, well represented in the region, stands out for its ecological importance and adaptability to various microenvironments ...
Everton Hilo de Souza   +5 more
wiley   +1 more source

First serologic evidence of human hantavirus infection in Alagoas State in Northeastern Brazil

open access: yesRevista da Sociedade Brasileira de Medicina Tropical
INTRODUCTION: Hantavirus cardiopulmonary syndrome (HCPS) is rare in Northeastern Brazil. METHODS: Prospective surveillance was conducted over a two-year period in Alagoas State, Northeastern Brazil.
José Alfredo dos Santos-Júnior   +7 more
doaj   +1 more source

Trait‐associated pathway links plant diversity to litterfall phenology in a seasonally dry tropical forest

open access: yesOikos, EarlyView.
Phenology plays a central role in regulating energy flow and nutrient cycling, yet remains insufficiently integrated into biodiversity–ecosystem functioning frameworks. This gap is especially relevant in strongly seasonal systems, where community‐wide synchrony in leaf litterfall may arise from either temporal niche differentiation among species or ...
Ana E. Bonato Asato   +14 more
wiley   +1 more source

Reflections on Comparative Teaching in Public Administration

open access: yesPublic Administration and Development, EarlyView.
ABSTRACT This article integrates our scholarly experience of teaching comparative public administration. In doing so, we offer a unique perspective as the co‐authors carry several diverse attributes, among them their countries of origin, current country in which they are teaching, and their academic experience.
Kim Moloney   +6 more
wiley   +1 more source

Additional studies on Geastrum from northeastern Brazil

open access: yes, 2007
Surveys on Geastrum diversity from areas of northeastern Brazil have been carried out in the last years. Three species belonging to the genus Geastrum were reported for the first time from this region: G. coronatum, G. funbriatum and G.
Leite, A. G.   +2 more
core   +1 more source

Electrospun PVA Scaffolds Containing MCM‐41/CNC Nanocomposites for Controlled Drug Release in Wound Dressings

open access: yesPolymer Engineering &Science, EarlyView.
Cellulose nanocrystals extracted from Mauritia flexuosa petiole were combined with MCM‐41 mesoporous silica to create a diclofenac‐loaded hybrid nanocomposite. Incorporation into electrospun PVA scaffolds enabled controlled diclofenac release and high cell viability, highlighting their potential for localized drug delivery.
Karoliny V. Barbosa   +11 more
wiley   +1 more source

Cladocera (Crustacea, Branchiopoda) of a temporary shallow pond in the Caatinga of Pernambuco, Brazil

open access: yesNauplius
The aim of this study was to describe the composition and structure of cladocerans of littoral areas with and without macrophytes from a temporary shallow pond in the Caatinga of Pernambuco state (Brazil).
Leidiane Pereira Diniz   +3 more
doaj  

How many bromeliads are there? History and future perspectives of species scientific discovery in the pineapple family

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
It remains unclear how many plant species are not yet recorded by science. We illustrated the process by which species of the pineapple family in tropical America have been newly described to science to date, and we estimated how many species may still await scientific discovery in this group.
Georg Zizka   +4 more
wiley   +1 more source

Outbreak of aggressions and transmission of rabies in human beings by vampire bats in northeastern Brazil

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2002
Outbreaks of attacks upon human beings by vampire bats seems to be a common phenomenon in several regions of Latin America, but the occurrence of rabies infection among humans bled by vampires, is relatively low.
Marcio A.S. Gonçalves   +2 more
doaj  

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