Results 11 to 20 of about 4,983 (132)

Heterogeneity in performance of science and technology parks in China: Is there “club” convergence?

open access: yesPapers in Regional Science, Volume 102, Issue 6, Page 1145-1167, December 2023., 2023
Abstract This study investigates determinants of science and technology parks (STPs) performance in China. We estimate dynamic panel‐data models on a sample comprising 53 STPs for 2008–2018. Foreign direct investment and human capital impact labour productivity and innovation of STPs and explain differences in performance among them.
Chen Rui, Boris Lokshin, Pierre Mohnen
wiley   +1 more source

Immunoglobulin E‐specific allergens against leaf in serum of dogs with clinical features of grass leaf allergy

open access: yesVeterinary Dermatology, Volume 34, Issue 5, Page 393-403, October 2023., 2023
Background – Grass leaf has been suspected to cause immunoglobulin (Ig)E‐mediated immediate hypersensitivity reactions both in humans and in dogs. However, most studies in this area are case control studies without in vitro data showing the involvement of IgE in the reaction.
Ken Mason, Janet Davies, Merja Ruutu
wiley   +1 more source

Neutral‐based processes overrule niche‐based processes in shaping tropical montane orchid communities across spatial scales

open access: yesJournal of Ecology, Volume 111, Issue 8, Page 1614-1628, August 2023., 2023
High compositional turnover, even across habitats with the highest degree of human intervention, suggests that both forest‐dwelling and open‐habitat species do not easily disperse across habitats. Species dispersal is the major force of orchid community turnover and might be strongly dependent upon macroevolutionary processes and species life‐history ...
Edicson Parra‐Sanchez   +2 more
wiley   +1 more source

Analysing public debt in the Mexican states: Spatial convergence, regional drivers and policy recommendations

open access: yesPapers in Regional Science, Volume 102, Issue 4, Page 737-760, August 2023., 2023
Abstract Considering that public debt is a priority for policymakers in Mexico, the aim of this paper is to examine the convergence or divergence in debt per capita and main drivers of debt in the 32 Mexican states in the period 2006–2021. The results support significant spatial correlation of debt/cap across states.
Mihaela Simionescu   +1 more
wiley   +1 more source

Successional and phenological effects on plant‐floral visitor interaction networks of a tropical dry forest

open access: yesJournal of Ecology, Volume 111, Issue 4, Page 927-942, April 2023., 2023
Our results showed that plant‐floral visitor interactions are dynamic and vary with flowering phenology and with successional changes in plant and animal diversity. Plant‐floral visitor interactions were more diverse and specialised in the late successional stages.
Jorge Cortés‐Flores   +11 more
wiley   +1 more source

Ensaio de carga horizontal no topo livre duma estaca

open access: yesGeotecnia, 1990
A fundação das duas torres da ponte internacional sobre o Rio Guadiana é constituída por grupos de estacas de grande diâmetro que atravessam uma espessa camada aluvial.
E. A. Guedes Melo, M. Esteves Ferreira
doaj   +1 more source

Technical, Environmental, and Cost Assessment of Granite Sludge Valorisation

open access: yesApplied Sciences, 2023
The granite sludge (GS) produced during block sawing can be exploited as alternative raw material in ceramic and concrete industries. Based on the case study of a Portuguese granite processing plant, this work analysed, by experimental tests and ...
Elena Surra   +7 more
doaj   +1 more source

Possibilidades presentes de estudo das fundações de barragens de betão

open access: yesGeotecnia, 1976
Ê apresentada a metodologia que se considera dever ser seguida na caracterização dos maciços de fundação das barragens de betão, expondo-se as técnicas a seguir e a maneira de exprimir os resultados com vista à sua utilização no projecto.
Manuel Rocha
doaj   +1 more source

Comportamento e segurança das fundações das barragens de betão (l.ª parte)

open access: yesGeotecnia, 1980
É apresentado o problema da previsão do comportamento e do julgamento da segurança da unidade estrutural barragem de betão/fundação, em especial da fundação.
Manuel Rocha
doaj   +1 more source

A reparação da barragem de Paradela

open access: yesGeotecnia, 1985
A barragem de Paradela, construída no Rio Cávado no de 1956/58, é uma barragem de enrocamento com 11O m de altura. A estanqueidade do seu paramento era assegurada por lajes de betão armado, articuladas.
António Sousa   +3 more
doaj   +1 more source

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