Results 101 to 110 of about 530,755 (180)

A observação participante enquanto técnica de investigação [PDF]

open access: yes, 2009
Na Observação participante, enquanto técnica utilizado em investigação, há que realçar que os seus objectivos vão muito além da pormenorizada descrição dos componentes de uma situação, permitindo a identificação do sentido, a orientação e a dinâmica de ...
Correia, Maria da Conceição Batista
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Saline‐Water Irrigation Elicits Hormetic Yield Responses in Sweetpotato Across 28 Genotypes Under Field Conditions

open access: yesJournal of Agronomy and Crop Science, Volume 212, Issue 6, November 2026.
ABSTRACT The use of saline water for irrigation is increasing as the quantity and quality of irrigation water resources are declining. Saline irrigation also provides a means to investigate crop responses to heterogenous salinity, which is a common occurrence in agricultural fields. Crop responses to salinity are dose‐ and genotype dependent, providing
Johanna Volk   +2 more
wiley   +1 more source

Colonisation History of Freshwater Snails Across the Atlantic and Mediterranean Islands: Insights From Mercuria (Littorinimorpha, Hydrobiidae)

open access: yesZoologica Scripta, Volume 55, Issue 6, Page 830-845, November 2026.
ABSTRACT Islands harbour unique biodiversity, and depending on their geological origin, they have fundamentally different colonisation histories: continental islands may contain relict faunas shaped by vicariance and sporadic gene flow, whereas oceanic islands must have been colonised across open seas, often through long‐distance dispersal events ...
Jonathan P. Miller   +3 more
wiley   +1 more source

La recherche en évaluation : propos synthétiques et prospectifs

open access: yesMesure et Évaluation en Éducation, 2006
Cet article tente une synthèse de l’état de la recherche dans le domaine de l’évaluation, à partir des différentes contributions de ce numéro spécial et, plus largement, d’articles parus dans la revue Mesure et évaluation en éducation ou de ...
Jean-Marie De Ketele
doaj   +1 more source

An Immobilized Marine Glycosyltransferase Acts as a Stabilized Biocatalyst for the Synthesis of Mannosylated Phosphoisoprenoids

open access: yesAdvanced Synthesis &Catalysis, Volume 368, Issue 20, 16 October 2026.
Mannosylated phosphoisoprenoids are generated by an immobilised glycosyltransferase as a sustainable approach towards the functionalisation of complex molecules. Glycosylated phosphoisoprenoids constitute valuable bioactive molecules and starting materials for complex glycosylation cascades.
Cecilia Ortiz   +4 more
wiley   +1 more source

da realidade factual à dimensão teleológica da investigação [PDF]

open access: yes, 2008
A problemática que se desenvolve neste texto procura responder a duas necessidades. Primeira: alargar o conceito de “Investigação-Acção” para “investigação-Acção/Formação”. Segunda: demonstrar que a extensibilidade anterior pode ser conseguida ao criar-
Barbosa, Luis Marques   +2 more
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Bacterial Diseases in Farmed Nile Tilapia (Oreochromis niloticus): A Review of Pathogenesis, Immune Responses and Recent Advances in Diagnostics and Management

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 5, October 2026.
Pathogenesis of bacterial diseases in Nile tilapia and anti‐bacterial mechanisms. ABSTRACT Nile tilapia (Oreochromis niloticus) is among the most widely farmed fish globally that plays a major role in ensuring food security in many low‐ and middle‐income countries.
Catherine Agoe   +8 more
wiley   +1 more source

Investigação em energias renováveis em Portugal : instituições, práticas e redes

open access: yes, 2018
Tese de doutoramento, Sociologia (Sociologia da Ciência e Tecnologia), Universidade de Lisboa, Instituto de Ciências Sociais, 2018As energias renováveis têm vindo a assumir um destaque sociopolítico particular, enquanto prioridade estratégica na redução ...
Junqueira, Luis
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On the importance of including both sexes in animal studies – insights from home‐cage monitoring

open access: yesBiological Reviews, Volume 101, Issue 5, Page 2408-2426, October 2026.
ABSTRACT A review of behavioural studies using home‐cage monitoring (HCM) systems revealed that over 61% of studies used only male subjects, with only 24% including both sexes, despite evidence of substantial behavioural differences between male and female animals. This bias could influence the outcomes of biomedical research.
Maša Čater   +12 more
wiley   +1 more source

A investigação-ação como forma de gerar reflexão crítica: estudo desenvolvido num doutoramento em Liderança Educacional [PDF]

open access: yes, 2012
Neste artigo as autoras descrevem e discutem o desenvolvimento de uma comunidade de inquiry em ambiente online, no âmbito de um programa doutoral em liderança educacional.
Oliveira, Isolina, Henriques, Susana
core   +1 more source

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