Energy now and forever With this challenging and topical issue as its main focus, the American Chemical Society (ACS) held its festival in the Paseo de la Princesa in San Juan, as part of Chemistry Week 2013. There we talked with Dr. Ingrid Montes, director-at-large at a national level for the ACS. We also had the chance to interview students from different schools and universities explaining their energy demonstrations. Don't miss the explanations of the sixth graders!... Read more
Archaeological starch grains consistent with those produced and stored in modern cojoba (Anadenanthera peregrina) seeds were identified, for the first time in the West Indies, in a coral milling base recovered in a small precolonial habitation site of Eastern Puerto Rico, in a context dated to A.D. 115–1250. Ethnohistoric, ethnographic, and previous archaeological data on cojoba from the West Indies and South America were surveyed in order to form plausible sociocultural interpretations of the findings.... Read more
Three articles in this issue address the role of vitamin and mineral supplements for preventing the occurrence or progression of chronic diseases. First, Fortmann and colleagues systematically reviewed trial evidence to update the U.S. Preventive Services Task Force recommendation on the efficacy of vitamin supplements for primary prevention in community-dwelling adults with no nutritional deficiencies.... Read more
The scaly-naped pigeon (Patagioenas squamosa) is threatened by hunting in the Caribbean. At present, the pigeon is abundant in Puerto Rico, but overharvesting is a major concern; therefore, the development of a sustainable harvest strategy is a management priority. The management objective of the harvest strategy is to maximize hunting opportunity while keeping the population above an abundance threshold (NT) of 260,000 pigeons.... Read more
The undisputed position of English as the “international language of science” has resulted in a push for its use in college science classrooms in non-English dominant contexts worldwide. This study uses classroom observation and interviews to examine the use of Spanish and English in college science classrooms at a land-grant university in Puerto Rico.... Read more
In this episode, "Mirada Científica" presents two separate initiatives that promote creativity and invention. First we meet the "Puerto Rico Institute of Robotics" (PRIOR) and its founder, engineer Wence López, and learn how they introduce young people to the world of robotics. Then, we go to the Universidad del Este where we visited the eighth edition of the Inventors and Entrepreneurs Forum. There, we meet with Gerson Restrepo, director of the activity.
(This podcast is in Spanish)... Read more
How much do you know about the Puerto Rican fauna? In this episode of "Mirada Científica" we talk to Dr. Eddy Laboy from Universidad del Turabo about the project "La Viodeteca de la Fauna de Puerto Rico", we had a conversation about birds with Israel Guzman and Ela Cruz from the Sociedad Ornitologica Puertorriqueña and finally we will search for bats along with Para La Naturaleza and Dr. Armando Rodríguez from Universidad Interamericana, Bayamón campus.
This podcast is in Spanish... Read more
By Dr. Taras Oleksyk, UPR Mayaguez
A recently published study used genetic analyses to confirm the South American origin of Taínos, the inhabitants of Puerto Rico before 1493. The research team, including several local collaborators, also pinpointed the average proportion of genetic material from Taíno, African, and European ancestors in a sample of people from Puerto Rico.... Read more
Scientist Ricardo Goenaga recently published several articles where he described to what extent longan and rambutan fruits could be grown in Puerto Rico at a comercial scale, and what factors can maximize crop yields. The full document is available only in Spanish.... Read more
Communicating science is not too different from communicating humor. How Jose Miguel Agrelot successfully adapts a comedy sketch from the United States so that it works for a Puerto Rican audience provides a useful guide for science communicators. The full document is available only in Spanish.... Read more