52 documents found, page 1 of 6
Digitization of crop nitrogen modelling: A review
Silva, Luis; Conceição, Luis; Lidon, Fernando; D'Antonio, Paola; Fiorentino, Costanza; Patanita, ManuelApplying the correct dose of nitrogen (N) fertilizer to crops is extremely important. The current predictive models of yield and soil–crop dynamics during the crop growing season currently combine information about soil, climate, crops, and agricultural practices to predict the N needs of plants and optimize its application. Recent advances in remote sensing technology have also contributed to digital modelling...
The endorheic – Exorheic transition and later stage of fluvial incision in a we...
Freitas, Marcelo; Paixão, Rodrigo; Salgado, André; Silva, Luis; Cunha, Pedro; Gomes, Alberto; Martins, António; Almeida, Júlio; Tupinamba, MiguelPresent-day endorheic drainage systems are rare in tropical humid regions and/or close to the coast. During the late Cenozoic, under a humid tropical climate, the Paraíba do Sul River basin (SE Brazil) has developed along the South America passive margin. This basin currently drains into the South Atlantic Ocean, but it preserves landforms that are indicative of previous endorheic paleodrainage. This study exam...
Working group on cephalopod fisheries and life history (Wgceph; outputs from 20...
Abad, Esther; Ainsworth, Gillian; Akselrud, Caitlin; Allcock, Louise; Badouvas, Nicholas; Baker, Krista; Barrett, Christopher; Bobowski, BiancaWGCEPH worked on six Terms of Reference. These involved reporting on the status of stocks; reviewing advances in stock identification, assessment for fisheries management and for the Ma- rine Strategy Framework Directive (MSFD), including some exploratory stock assessments; re- viewing impacts of human activities on cephalopods; developing identification guides and rec- ommendations for fishery data collection;...
Classification of a family of Lorenz knots with reducible symbolic sequences
Franco, Nuno; Silva, Luis; Gomes, PauloBased on symbolic dynamics of Lorenz maps, we prove that, provided one conjecture due to Morton is true, then a countable family of Lorenz knots associated to orbits of points in the renormalization intervals of Lorenz maps are hyperbolic. This countable family contains some of the hyperbolic Lorenz knots listed by J. Birman and I. Kofman.
Hospitalisation and Disease Severity Alter the Resting Pattern of Horses
Oliveira, Tiago; Santos, Amanda; Silva, Júlia; Trindade, Pedro [UNESP]; Yamada, Ana; Jaramillo, Fernando; Silva, Luis; Baccarin, RaquelMade available in DSpace on 2022-04-28T19:48:49Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-03-01; In humans, hospitalisation, disease type, and environmental factors evidently affect the quality of sleep, further influencing patient recovery. The objective of the present study was to report the resting and lying behaviour of hospitalised horses, and whether lying behaviours differ depending on the p...
Pick-Up and placement improvement: an industrial case study
Silva, Luis; Meireles, José Filipe Bizarro; Pinhao, Mario; Gonçalves, A. Manuela; Malheiro, M. TeresaSurface mount technology, usually on the context of Pick-up and Placement, is used on printed circuit boards assembling. In this paper, some aspects and physical parameters related with the pick-up and placement process are analysed in detail throughout the entire work sequence, such as the different variants of these same components among the various suppliers under study. In this process, there are problems o...
Synchronization of estrous using FGA internal pessaries and CIDR in Churra Gale...
Quintas, Helder; Silva, Luis; Mateus, Óscar; Ramos, Juan Jose; Ferrer, Luis Miguel; Ruiz, Héctor; Lacasta, Delia; Valentim, RamiroThe main goal of this paper was to compare the efficiency of FGA and CIDR in the synchronization of estrous in Portuguese CGB ewes. This study was performed at Braganza (latitude 41° 48’ 33’’N, longitude 6° 44’ 3’’W and Altitude 670 meters between April 1st and June 5th. Forty-nine CGB ewes aging between 2 to 8 years were divided in two groups - FGA (n = 26) and CIDR (n = 23). Body condition was scored accordin...
Artificial insemination with two different vaginoscopes of Churra Galega Bragan...
Quintas, Helder; Silva, Luis; Mateus, Óscar; Ramos, Juan Jose; Ferrer, Luis Miguel; Correia, Teresa Montenegro; Lacasta, Delia; Valentim, RamiroThe main goal of this paper was to compare the efficiency of two speculums in the AI of Portuguese Churra Galega Bragançana (CGB) ewes. This study was performed at Braganza (latitude 41° 48’ 33’’N, longitude 6° 44’ 3’’W, and Altitude 670 meters) between April 1st and June 5th. Forty-nine CGB ewes aged between 2 to 8 years were used. Body condition was scored according to the Australian classification table. On ...
Shynchronization of estrous using fga internal pessaries and CIDR in Churra Gal...
Quintas, Helder; Silva, Luis; Mateus, Óscar; Ramos, Juan Jose; Ferrer, Luis Miguel; Ruiz, Héctor; Lacasta, Delia; Valentim, RamiroThe control of reproduction activity has a major impact in the management and profitability of sheep farms. There are several synchronization of estrous protocols. The progesterone/progestogens protocols are widely used all over the word. The long term protocols are the most commonly applied. Progestogens are synthetic hormones that mimics the effects of progesterone. The fluorgestone acetate(FGA) is the proges...
Trainer‐exerciser relationship: The congruency effect on exerciser psychologica...
Rodrigues, Filipe; Pelletier, Luc G.; Rocchi, Meredith; Neiva, Henrique P.; Teixeira, Diogo S.; Cid, Luis; Silva, Luis; Monteiro, DiogoPerceptions of fitness trainers' need-supportive and need-thwarting behaviors have been shown to impact exercisers' psychological need satisfaction and frustration. Currently, it is unknown whether an agreement or disagreement between exercisers' and fitness trainers' reported perceptions of these behaviors leads to the satisfaction and/or frustration of psychological needs. Based on self-determination theory, ...