El Estado, la élite y las comunidades: Los contratos en torno a la explotación de la madreperla en el Pacífico de Costa Rica (siglos XIX y XX) [PDF]
Anuario de Estudios Centroamericanos, 2017 Este estudio tiene como fin mostrar, a través del análisis de los contratos otorgados por el Estado para la explotación de la madreperla, los privilegios concedidos a la élite costarricense y a los inversionistas extranjeros, en detrimento de las formas ...
Elizet Payne Iglesias
doaj +5 more sources
Investigación aplicada al acondicionamiento gonadal y reproducción de la madreperla de Calafia, Pinctada mazatlanica (Hanley, 1856) en el laboratorio [PDF]
Revista de biología marina y oceanografía, 2001 The genus Pinctada is used in commercial pearl farming worldwide. In this activity, a piece of mantle tissue from a donor’s paleal zone is implanted within the gonad of other receiver pearl oysters. However, this method has proved to be inefficient in commercial pearling activities.
Humberto Wright +2 more
semanticscholar +7 more sources
Human papillomavirus‐related neoplasia of the ocular adnexa [PDF]
Acta Ophthalmologica, Volume 100, Issue S272, Page 3-33, October 2022., 2022 Summary Human papillomaviruses (HPV) are involved in approximately 5% of solid cancers worldwide. The mucosotropic genotypes infect the stratified epithelium of various locations, where persistent infection may lead to invasive carcinomas. While the causative role of HPV in certain anogenital and head and neck carcinomas is well established, the role ...
Ingvild Margrethe Sellæg Ramberg
wiley +2 more sources
¿Estamos manejando correctamente los recursos marinos en Costa Rica?
Ciencias Ambientales, 2023 Resumen La explotación de los recursos costero-marinos en nuestras costas ha ocurrido desde hace unos 12 000 años; esta actividad ha sido intensa y con menosprecio por el estado del recurso que se explota; como consecuencia, muchos de los recursos ...
Jorge A. Jiménez Ramón
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Comparación de las macroalgas epizóicas de la madreperla Pinctada mazatlanica (Hanley 1856) con las de fondos rocosos en la bahía de La Paz, Baja California Sur, México [PDF]
Mediterránea. Serie de Estudios Biológicos, 2011 This study describes the algae community on Pinctada mazatlanica and compare it with the one the rocky substrate. We collected 36 samples, 18 from oysters and rocky substrate from the San Juan Nepomuceno Peninsula, La Paz Bay, Mexico. The algae were collected by SCUBA diving scraping the different surfaces (25 cm2 of rocky substrate).
Wright López, Humberto +3 more
openaire +2 more sources
Long‐Term Anatomic and Functional Outcomes after Macular Hole Surgery [PDF]
Journal of Ophthalmology, Volume 2018, Issue 1, 2018., 2018 Aim. To evaluate the structural and functional outcomes in patients who underwent macular hole (MH) surgery in the long‐term follow‐up. Materials and Methods. Forty‐four eyes of 40 patients (28 females and 12 males) were examined. The examination included visual acuity, optical coherence tomography, and colour vision testing.
Karolina Kaźmierczak +5 more
wiley +2 more sources
Revista de Biología Tropical, 2009 La madreperla Pinctada mazatlanica esta en veda desde 1939 y considerada en peligro de extinción, cambiando su categoría a protección especial en 1994.
Humberto Wright-López +3 more
doaj +5 more sources
Na+,K+-adenosine triphosphatase polarity in retinal photoreceptors: a role for cytoskeletal attachments. [PDF]
J Cell Biol, 1989 We have used isolated embryonic photoreceptor cells as a model system with which to examine the mechanisms responsible for the development and maintenance of asymmetric Na+,K+-ATPase (ATPase) distribution. Photoreceptor precursors, which appear round and
Madreperla SA, Edidin M, Adler R.
europepmc +2 more sources
Promoter deletion and loss of retinoblastoma gene expression in human prostate carcinoma. [PDF]
Proc Natl Acad Sci U S A, 1990 Bookstein R +6 more
europepmc +2 more sources