The Mechanical Paul Trap: Introducing the Concept of Ion Trapping

Autor: Lofgren, Sebastian Kilde, Fragoso, Ricardo Méndez, Weidow, Jonathan, Enger, Jonas

Publikováno v: Phys. Teach. 61(9), 762-765 (2023)

Nobel laureate Wolfgang Paul showed, back in the 1950s, that charged particles can be trapped using alternating electric fields. This technique is commonly referred to as Paul traps or radiofrequency traps (RF-traps) and is used in various areas of m

Externí odkaz: http://arxiv.org/abs/2303.08194

Ladder Operators for Lam\'e Spheroconal Harmonic Polynomials

Autor: Méndez-Fragoso, Ricardo, Ley-Koo, Eugenio

Publikováno v: SIGMA 8 (2012), 074, 16 pages

Three sets of ladder operators in spheroconal coordinates and their respective actions on Lam\'e spheroconal harmonic polynomials are presented in this article. The polynomials are common eigenfunctions of the square of the angular momentum operator

Externí odkaz: http://arxiv.org/abs/1210.4632

MAMMALS IN PORTUGAL : A data set of terrestrial, volant, and marine mammal occurrences in P ortugal

Autor: Grilo, Clara, Afonso, Beatriz C., Afonso, Filipe, Alexandre, Marta, Aliácar, Sara, Almeida, Ana, Alonso, Ivan Prego, Álvares, Francisco, Alves, Paulo, Alves, Paulo Célio, Alves, Pedro, Duarte, Beatriz, Duro, Virginia, Encarnação, Cláudia, Eufrázio, Sofia, Fael, António, Falé, João Salvador, Faria, Sandra, Fernandes, C, Fernandes, Margarida, Lopes, Susana, Rosalino, L. M., Costa, Gonçalo Ferrão, Ferreira, Clara, Ferreira, Diogo F., Ferreira, Eduardo, Ferreira, Joaquim Pedro, Ferreira, João, Ferreira, Diana, Fonseca, Carlos, Fontes, Inês, Fragoso, Ricardo, Rosário, Inês T., López-Baucells, Adrià, Franco, Claudia, Freitas, Tamira, Gabriel, Sofia I., Gibb, Rory, Gil, Patricia, Gomes, Carla Patricia Jorge, Horta, Pedro, Gomes, Pedro, Gomes, Verónica, Rossa, Mariana, Grilo, Ana Filipa, Amado, Anabela, Guedes, Américo, Guilherme, Filipa, Gutiérrez, Iván, Harper, Henry, Herrera, José M., Hipólito, Dário, Infante, Samuel, Jesus, José, Russo, Danilo, Loureiro, Armando, Loureiro, Filipa, Lourenço, Rui, Lourenço, Sofia, Lucas, Paula, Magalhães, Ana, Maldonado, Cristina, Marcolin, Fabio, Marques, Sara, Marques, J. Tiago, Sá, Pedro, Amendoeira, Vitor, Marques, Carina, Marques, Paulo, Marrecas, Pedro Caetano, Martins, Frederico, Martins, Raquel, Mascarenhas, Miguel, Mata, Vanessa A., Mateus, Ana Rita, Matos, Milene, Sabino‐Marques, Helena, Medinas, Denis, Amorim, Francisco, Mendes, Tiago, Mendes, Gabriel, Mestre, Frederico, Milhinhas, Catarina, Mira, António, Monarca, Rita I., Monteiro, Norberto, Monteiro, Barbara, Salgueiro, Vânia, Monterroso, Pedro, Nakamura, Mónia, Silva Aparício, Guilherme, Negrões, Nuno, Nóbrega, Eva K., Nóvoa, Miguel, Nunes, Manuel, Nunes, Nuno Jardim, Oliveira, Flávio, Oliveira, José Miguel, Santos, Helena, M. Palmeirim, Jorge, Pargana, João, Paula, Anabela, Araújo, Ricardo, Paupério, Joana, Pedroso, Nuno M., Pereira, Guilherme, Pereira, Pedro F., Pereira, José, Pereira, Maria João Ramos, Santos, Joana, Petrucci-Fonseca, Francisco, Pimenta, Miguel, Pinto, Sara, Pinto, Nuno, Ascensão, Fernando, Pires, Rosa, Pita, Ricardo, Pontes, Carlos, Quaresma, Marisa, Queirós, João, Barbosa, A. Márcia, Queirós, Luís, Rainho, Ana, Graça Ramalhinho, Maria, Ramalho, Patrícia, Raposeira, Helena, Augusto, Margarida, Rasteiro, Francisco, Rebelo, Hugo, Regala, Frederico Tátá, Reto, Dyana, Jones, Kate E., Ribeiro, Sérgio Bruno, Rio‐Maior, Helena, Rocha, Ricardo, Rocha, Rita Gomes, Rodrigues, Luísa, Román, Jacinto, Bandeira, Victor, Roque, Sara, Santos, João P. V., Santos, Nuno, Santos, Sara, Santos, Carlos Pedro, Santos-Reis, Margarida, Serronha, Ana, Sierra, Pablo, Silva, Bruno, Silva, Carla S. G. M., Silva, Clara, Laborde, Marina I., Barbosa, Soraia, Silva, Diogo, Silva, Luís P., Silva, Ricardo, Silva, Carmen, Silva Júnior, Flavio Manoel Rodrigues, Sousa, Pedro, Sousa‐Guedes, Diana, Spadoni, Giulia, Tapisso, Joaquim T., Oliveira, Luís Lamas, Teixeira, Daniela, Barbosa, Sérgio, Teixeira, Sérgio, Teixeira, Nuno, Torres, Rita T., Travassos, Paulo, Vale‐Gonçalves, Hélia, Cidraes‐Vieira, Nuno, Merten, Sophie, Luz Mathias, Maria, Leitão, Inês, Barreiro, Silvia, Barros, Paulo, Barros, Tânia, Barros, Filomena, Pinto Basto, Mafalda, Bernardino, Joana, Bicho, Sara, Biedma, Luis Eduardo, Borges, Marta, Braz, Luis, Lemos, Rita, Brito, José Carlos, Brito, Tiago, Cabral, João Alexandre, Calzada, Javier, Camarinha, Cláudia, Carapuço, Mafalda, Cardoso, Paulo, Carmo, Mário, Carrapato, Carlos, Silva Carrilho, Maílis, Lima, Cátia, Carvalho, Diogo Filipe T. C. S., Carvalho, Filipe, Carvalho, João, Castro, Diana, Castro, Guilherme, Castro, Joana, Castro, Luis Roma, Catry, Filipe Xavier, Cerveira, Ana M., Cid, André, Linck, Paloma, Clarke, Rafael, Conde, Conceição, Conde, José, Costa, Jorge, Costa, Mafalda, Costa, Pedro, Costa, Cristina, Couto, André Pedro, Craveiro, João, Dias, Marta, Lopes, Hugo, Dias, Sofia

Mammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, op

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1961::e65b69fb4700dd3e1d0315c99b052f3c
https://hdl.handle.net/10451/55461

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Efeito da estrutura do habitat e da intensidade de pastoreio na condição física de Apodemus sylvaticus em ambiente agro-silvo-pastoril

Autor: Fragoso, Ricardo Jorge Ribeiro

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

Tese de mestrado, Biologia da Conservação, Universidade de Lisboa, Faculdade de Ciências, 2018 Submitted by Teresa Boa (tdboa@fc.ul.pt) on 2019-02-08T12:03:18Z No. of bitstreams: 1 ulfc124835_tm_Ricardo_Fragoso.pdf: 1896905 bytes, checksum: 7cedd1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::c6b5426b025008cea850c1851c3c5e39