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• 1990

  Comparison of three methods of pregnancy diagnosis in alpacas and llamas

  Alarcón, V., Sumar, J., Riera, G. S. & Foote, W. C., 1 Jan 1990, In: Theriogenology. p. 1119-1127 9 p.

  Research output: Contribution to journal › Article › peer-review
  23 Scopus citations

• Curvature of woody plants on slopes of a timberline montane forest in peru

  Young, K. R. & Leon, B., 1 Jan 1990, In: Physical Geography. 11, 1, p. 66-74 9 p.

  Research output: Contribution to journal › Article › peer-review
  6 Scopus citations

• Detection and quantitation of a type D retrovirus gag protein in ovine pulmonary carcinoma (sheep pulmonary adenomatosis) by means of a competition radioimmunoasay

  Kajikawa, O., Dahlberg, J. E., Rosadio, R. H. & De Martini, J. C., Oct 1990, In: Veterinary Microbiology. 25, 1, p. 17-28 12 p.

  Research output: Contribution to journal › Article › peer-review
  7 Scopus citations

• Hepatitis B in a highly active prostitute population: Evidence for a low risk of chronic antigenemia

  Hyams, K. C., Phillips, I. A., Tejada, A., Li, O., Hermoza, P., Lopez, F., Alva, P., Chauca, G., Sanchez, S. & Wignall, F. S., Aug 1990, In: Journal of Infectious Diseases. 162, 2, p. 295-298 4 p.

  Research output: Contribution to journal › Article › peer-review
  17 Scopus citations

• Hepatitis B in a highly active prostitute population: Evidence for a low risk of chronic antigenemia

  Hyams, K. C., Phillips, I. A., Tejada, A., Li, O., Hermoza, P., Lopez, F., Alva, P., Chauca, G., Sanchez, S. & Wignall, F. S., 1 Jan 1990, In: Journal of Infectious Diseases. p. 295-298 4 p.

  Research output: Contribution to journal › Article › peer-review
  17 Scopus citations

• Milk progesterone profiles in crossbred Brown Swiss × Nellore cattle following natural service

  Garcia, M., 1 Jan 1990, In: Theriogenology. p. 1105-1111 7 p.

  Research output: Contribution to journal › Article › peer-review
  4 Scopus citations

• Mortality causes of owl monkeys (Aotus nancymae and Aotus vociferans) in captivity

  Gozalo, A. & Montoya, E., 15 Aug 1990, In: Journal of Medical Primatology. p. 69-72 4 p.

  Research output: Contribution to journal › Article › peer-review
  13 Scopus citations

• Post-partum reproductive efficiency of pure- and cross-bred Zebu cattle under different management and nutritional conditions in the Amazon Basin of Peru

  Garcia, M., Echevarria, L. & Huanca, W., 1 Jan 1990, 17 p.

  Research output: Book/Report › Article
  1 Scopus citations

• Prevalence and comparison of serologic assays, necropsy, and tongue examination for the diagnosis of porcine cysticercosis in Peru

  Gonzalez Zariquiey, A. E., Cama, V., Gilman, R. H., Tsang, V. C. W., Pilcher, J. B., Chavera Castillo, A. E. V., Castro, M., Montenegro, T., Verastegui, M., Miranda, E. & Bazalar, H., 1990, In: American Journal of Tropical Medicine and Hygiene. 43, 2, p. 194-199 6 p.

  Research output: Contribution to journal › Article › peer-review
  161 Scopus citations

• Production of 2n pollen in diploid Ipomoea trifida, a putative wild ancestor of sweet potato

  Orjeda Fernandez, M. G., Freyre, R. & Iwanaga, M., Nov 1990, In: Journal of Heredity. 81, 6, p. 462-467 6 p.

  Research output: Contribution to journal › Article › peer-review
  43 Scopus citations

• Progesterone determinations and clinical examinations of reproductive organs in purebred and crossbred female Zebu cattle

  Garcia, M. & Edqvist, L. E., 1 Jan 1990, In: Theriogenology. p. 1091-1103 13 p.

  Research output: Contribution to journal › Article › peer-review
  4 Scopus citations

• Radiation and convergence among desert geckos: Phyllodactylus species resembling both Ptyodactylus and Stenodactylus

  Carrillo De Espinoza, N., Salas, A., Rothenstein, D. & Werner, Y. L., 1 Jan 1990, In: Amphibia Reptilia. 11, 1, p. 1-13 13 p.

  Research output: Contribution to journal › Article › peer-review
  13 Scopus citations

• Reproduction of the owl monkey (Aotus nancymai) (primates:Cebidae) in captivity

  Gozalo, A. & Montoya, E., 1 Jan 1990, In: American Journal of Primatology. p. 61-68 8 p.

  Research output: Contribution to journal › Article › peer-review
  27 Scopus citations

• Reproductive performance of purebred and crossbred Zebu cattle under artificial insemination in the Amazon tropics

  Garcia, M., Huanca, W. & Echevarria, L., 1 Jan 1990, In: Animal production. p. 41-49 9 p.

  Research output: Contribution to journal › Article › peer-review
  6 Scopus citations

• Supplemental notes on population parameters of northeastern Peruvian night monkeys, genus Aotus (Cebidae)

  Aquino, R., Puertas, P. & Encarnación, F., 1 Jan 1990, In: American Journal of Primatology. p. 215-221 7 p.

  Research output: Contribution to journal › Article › peer-review
  19 Scopus citations

• Temperature dependence of the electric quadrupole interaction at scandium impurities in zirconium and hafnium

  Lira-Cacho, A. & Vianden, R., Aug 1990, In: Hyperfine Interactions. 60, 1-4, p. 833-836 4 p.

  Research output: Contribution to journal › Article › peer-review

• Variation, Distribution, and Life History of Edalorhina perezi (Amphibia, Anura, Leptodactylidae)

  Duellman, W. E. & Morales, V. R., 1 Jan 1990, In: Studies on Neotropical Fauna and Environment. 25, 1, p. 19-30 12 p.

  Research output: Contribution to journal › Article › peer-review
  8 Scopus citations
• 1989

  Albendazole in the treatment of hepatic and intra-abdominal hydatidosis

  Vildósola, H., Sanchéz, L. & Espinoza, R., 1 Dec 1989, In: Revista de gastroenterologia del Peru : organo oficial de la Sociedad de Gastroenterologia del Peru. p. 17-23 7 p.

  Research output: Contribution to journal › Article › peer-review
  4 Scopus citations

• Albendazol en el tratamiento de la hidatidosis hepática e intrabdominal.

  Translated title of the contribution: Albendazole in the treatment of hepatic and intra-abdominal hydatidosisVildósola, H., Sanchéz, L. & Espinoza, R., 1989, In: Revista de gastroenterologia del Peru : organo oficial de la Sociedad de Gastroenterologia del Peru. 9, 1, p. 17-23 7 p.

  Research output: Contribution to journal › Article › peer-review

  4 Scopus citations

• Body weight, tick burden (Boophilus microplus), physiological parameters and reproductive efficiency of crossbred zebu cattle.

  Garcia, M., Huanca, W. & Chávez, A., 1 Dec 1989, In: Acta Veterinaria Scandinavica. p. 347-353 7 p.

  Research output: Contribution to journal › Article › peer-review

• Contributions to the study of proteolytic and procoagulant properties, and electrophoretic characterization of proteins of two toxic extracts of Loxosceles laeta venom

  Heredia, V., Arbaiza, E., Venegas, J., Yarleque, A. & Zavaleta, A., 1 Jan 1989, In: Boletin Chileno de Parasitologia. p. 8-16 9 p.

  Research output: Contribution to journal › Article › peer-review
  1 Scopus citations

• Grazing behaviour of llamas, alpacas and sheep in the Andes of Peru

  Pfister, J. A., San Martin, F., Rosales, L., Sisson, D. V., Flores, E. & Bryant, F. C., Jun 1989, In: Applied Animal Behaviour Science. 23, 3, p. 237-246 10 p.

  Research output: Contribution to journal › Article › peer-review
  29 Scopus citations

• Grazing behaviour of llamas, alpacas and sheep in the Andes of Peru

  Pfister, J. A., San Martin, F., Rosales, L., Sisson, D. V., Flores, E. & Bryant, F. C., 1 Jan 1989, In: Applied Animal Behaviour Science. p. 237-246 10 p.

  Research output: Contribution to journal › Article › peer-review
  29 Scopus citations

• Hepatitis aguda en heroinómanos: estudio etiológico y evolutivo de 110 casos.

  Translated title of the contribution: Acute hepatitis in heroin addicts: etiologic and follow-up study of 110 casesGimeno, V., Escudero, A., González, R., Serra, M. A., del Olmo, J. A., Wassel, A., Aparisi, L. & Rodrigo, J. M., Apr 1989, In: Revista Clinica Espanola. 184, 7, p. 360-363 4 p.

  Research output: Contribution to journal › Article › peer-review

  4 Scopus citations

• Iron and folic acid deficiency in pregnancy, and successful oral therapy

  Padron, A. B., Matzumura Kasano, J. P., Estacio, C. & Gonzalez, F., 1 Jan 1989, In: Investigacion Medica Internacional. p. 70-74 5 p.

  Research output: Contribution to journal › Article › peer-review

• Isolation and characterization of a fibrinogen-clotting enzyme from venom of the snake, Lachesis muta muta(Peruvian bushmaster)

  Yarleque, A., Campos, S., Escobar, E., Lazo, F., Sanchez, N., Hyslop, S., Marsh, N. A., Butterworth, P. J. & Price, R. G., 1989, In: Toxicon. 27, 11, p. 1189-1197 9 p.

  Research output: Contribution to journal › Article › peer-review
  28 Scopus citations

• Laparoscopic examination of the ovarian activity in alpacas

  Walter Bravo, P. & Sumar, J., 30 Dec 1989, In: Animal Reproduction Science. p. 271-281 11 p.

  Research output: Contribution to journal › Article › peer-review
  56 Scopus citations

• Nutrition of domesticated South American llamas and alpacas

  San Martin Howard, F. A. & Bryant, F. C., Sep 1989, In: Small Ruminant Research. 2, 3, p. 191-216 26 p.

  Research output: Contribution to journal › Article › peer-review
  104 Scopus citations

• Pteridophyte species diversity in the central Peruvian Amazon: Importance of edaphic specialization

  Young, K. R. & León, B., 1 Oct 1989, In: Brittonia. 41, 4, p. 388-395 8 p.

  Research output: Contribution to journal › Article › peer-review
  50 Scopus citations

• Spatial coexistence of mussel-associated, free-ranging polychaetes in a subtropical intertidal habitat

  Tokeshi, M., Romero, L. & Tarazona, J., 1989, In: Journal of Animal Ecology. 58, 2, p. 681-692 12 p.

  Research output: Contribution to journal › Article › peer-review
  10 Scopus citations
• 1988

  Difusión intrafamiliar del virus B de la hepatitis (VHB).

  Translated title of the contribution: Intrafamily spread of the hepatitis B virusGonzález, R., Serra, M. A., Rodrigo, J. M., del Olmo, J. A., Aparisi, L., Bixquert, M. & Nogueira, J. M., Feb 1988, In: Revista Clinica Espanola. 182, 3, p. 127-133 7 p.

  Research output: Contribution to journal › Article › peer-review

  1 Scopus citations

• Lesions and Retroviruses Associated with Naturally Occurring Ovine Pulmonary Carcinoma (Sheep Pulmonary Adenomatosis)

  Rosadio, R. H., Sharp, J. M., Lairmore, M. D., Dahlberg, J. E. & de Martini, J. C., Jan 1988, In: Veterinary Pathology. 25, 1, p. 58-66 9 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  32 Scopus citations

• Population densities and geographic distribution of night monkeys (Aotus nancymai and Aotus vociferans) (cebidae: Primates) in Northeastern Peru

  Aquino, R. & Encarnación, F., 1 Jan 1988, In: American Journal of Primatology. p. 375-381 7 p.

  Research output: Contribution to journal › Article › peer-review
  21 Scopus citations

• Present and potential role of South American Camelids in the high Andes.

  Sumar, J., 1 Jan 1988, In: Outlook on Agriculture. p. 23-29 7 p.

  Research output: Contribution to journal › Article › peer-review
  11 Scopus citations

• Retrovirus-associated Ovine Pulmonary Carcinoma (Sheep Pulmonary Adenomatosis) and Lymphoid Interstitial Pneumonia. I. Lesion Development and Age Susceptibility

  Rosadio, R. H., Lairmore, M. D., Russell, H. I. & Demartini, J. C., Nov 1988, In: Veterinary Pathology. 25, 6, p. 475-483 9 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  33 Scopus citations

• The etiology and pathogenesis of ovine pulmonary carcinoma (sheep pulmonary adenomatosis)

  Demartini, J. C., Rosadio, R. H. & Lairmore, M. D., Jul 1988, In: Veterinary Microbiology. 17, 3, p. 219-236 18 p.

  Research output: Contribution to journal › Article › peer-review
  44 Scopus citations
• 1987

  A review of the mechanism of the release of spermatozoa from storage tubules in the fowl and turkey oviduct

  Zavaleta, D., 1 Jan 1987, In: World's Poultry Science Journal. p. 132-139 8 p.

  Research output: Contribution to journal › Article › peer-review
  22 Scopus citations

• Effect of vitamin E on the response of lung antioxidant enzymes in young rats exposed to hyperoxia.

  Nakamura, H., Takada, S., Shimabuku, R., Matsuo, T. & Obara, H., 1 Apr 1987, In: Kobe Journal of Medical Sciences. p. 53-63 11 p.

  Research output: Contribution to journal › Article › peer-review
  4 Scopus citations

• Effect of vitamin E on the response of lung antioxidant enzymes in young rats exposed to hyperoxia.

  Nakamura, H., Takada, S., Shimabuku, R., Matsuo, T. & Obara, H., Apr 1987, In: Kobe Journal of Medical Sciences. 33, 2, p. 53-63 11 p.

  Research output: Contribution to journal › Article › peer-review

  4 Scopus citations

• Serologic survey of viral antibodies in the Peruvian alpaca (Lama pacos).

  Rivera, H., Madewell, B. R. & Ameghino, E., 1 Feb 1987, In: American Journal of Veterinary Research. p. 189-191 3 p.

  Research output: Contribution to journal › Article › peer-review
  95 Scopus citations

• Seroreactivity of Peruvian sheep and goats to small ruminant lentivirus-ovine progressive pneumonia virus.

  Madewell, B. R., Ameghino, E., Rivera, H., Inope, L. & De Martini, J., 1 Mar 1987, In: American Journal of Veterinary Research. p. 372-374 3 p.

  Research output: Contribution to journal › Article › peer-review
  5 Scopus citations

• Serum gastrin and gastric acid secretion at high altitude

  Jó, N., García, O., Jara, R., Garmendia, F., Nago, A., García, R., Hidalgo, H. & Flores, L., 1 Jan 1987, In: Hormone and Metabolic Research. p. 182-183 2 p.

  Research output: Contribution to journal › Article › peer-review
  6 Scopus citations
• 1986

  Characteristics and use of sleeping sites in Aotus (Cebidae: Primates) in the Amazon lowlands of Peru

  Aquino, R. & Encarnación, F., 1 Jan 1986, In: American Journal of Primatology. p. 319-331 13 p.

  Research output: Contribution to journal › Article › peer-review
  66 Scopus citations

• Induction of in vitro tubers in a broad range of potato genotypes

  Estrada, R., Tovar, P. & Dodds, J. H., Jan 1986, In: Plant Cell, Tissue and Organ Culture. 7, 1, p. 3-10 8 p.

  Research output: Contribution to journal › Article › peer-review
  96 Scopus citations

• Population structure of Aotus nancymai (Cebidae: Primates) in Peruvian Amazon lowland forest

  Aquino, R. & Encarnación, F., 1 Jan 1986, In: American Journal of Primatology. p. 1-7 7 p.

  Research output: Contribution to journal › Article › peer-review
  24 Scopus citations
• 1985

  Auditory nerve and brainstem responses in newborn infants with hyperbilirubinemia

  Nakamura, H., Takada, S., Shimabuku, R., Matsuo, M., Matsuo, T. & Negishi, H., 1985, In: Pediatrics. 75, 4, p. 703-708 6 p.

  Research output: Contribution to journal › Article › peer-review

  141 Scopus citations

• Effect of chronic altitude hypoxia on the behavior of the respiratory center. Study on normal subjects living at the altitude of Mexico City (2,240 meters)

  Sandoval, J., Beltrán, U., Gómez, A., López, R., Martínez, W., Vázquez, V., Seoane, M., Martínez, M. L. & Herrera, E. L., 1 Sep 1985, In: Archivos del Instituto de Cardiologia de Mexico. p. 381-387 7 p.

  Research output: Contribution to journal › Article › peer-review
  2 Scopus citations

• Effect of copper, cobalt and zinc supplementation on liveweight gain of Nellore heifers in the Peruvian tropics

  Echevarria, M., Garcia, M. & Meini, G., 1 Jan 1985, In: Nutrition Reports International. p. 463-468 6 p.

  Research output: Contribution to journal › Article › peer-review

• Methodologic function of the concept of health in the evaluation of the goal of "health for all by the year 2000"

  Quirós Salinas, C. & Alarcón Villaverde, J., 1 Dec 1985, In: Educacion medica y salud. p. 302-312 11 p.

  Research output: Contribution to journal › Article › peer-review
• 1984

  Acaphu: A tetraploid, fertile breeding line, selected from an S. acaule ×S. phureja cross

  Estrada Jimenez, R. V., Jan 1984, In: American Potato Journal. 61, 1, p. 1-7 7 p.

  Research output: Contribution to journal › Article › peer-review
  5 Scopus citations