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Leonardo Reyes Gonzalez, Claudia N González Brambila, Francisco Veloso
This paper analyzes the influence key scientists have in the development of a science and technology system. In particular, this work appraises the influence that star scientists have on the productivity and impact of young faculty, as well as on the likelihood that these young researchers become a leading personality in science. Our analysis confirms previous results that eminent scientist have a prime role in the development of a scientific system, especially within the context of an emerging economy like Mexico...
2018: PloS One
Katharina Heider, Juan Miguel Rodriguez Lopez, Jürgen Scheffran
Due to the availability of Web 2.0 technologies, volunteered geographic information (VGI) is on the rise. This new type of data is available on many topics and on different scales. Thus, it has become interesting for research. This article deals with the collective potential of VGI and remote sensing to detect peri-urbanization in the conservation zone of Mexico City. On the one hand, remote sensing identifies horizontal urban expansion, and on the other hand, VGI of ecological complaints provides data about informal settlements...
March 14, 2018: Environmental Monitoring and Assessment
Erick Rodríguez-Ibarra, Griselda Pulido-Flores, Juan Violante-González, Scott Monks
The helminthological examination of nine individuals of Aetobatus cf. narinari (spotted eagle ray; raya pinta; arraia pintada) revealed the presence of an undescribed species of cestode of the genus Acanthobothrium. The stingrays were collected from four locations in México: Laguna Términos, south of Isla del Carmen and the marine waters north of Isla del Carmen and Champotón, in the State of Campeche, and Isla Holbox, State of Quintana Roo. The new species, nominated Acanthobothrium marquesi, is a category 3 species (i...
March 12, 2018: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
Laura Busia, Anthony R Denice, Filippo Aureli, Colleen M Schaffner
Homosexual behavior is defined as genital contact or genital manipulation between same-sex individuals. In nonhuman primates, it may regulate social relationships by serving as a means of reconciliation, tension alleviation, or alliance formation. Grappling is a rare and complex behavior, which most frequently occurs between same-sex individuals of the genus Ateles and can include mutual manipulation of the genitalia. Here we report three cases of penile-anal intromission during grappling between wild male spider monkeys living in the natural protected area of Otoch Ma'ax Yetel Kooh, Mexico...
March 13, 2018: Archives of Sexual Behavior
Frank T Burbrink, Marcelo Gehara
Most phylogenies are typically represented as purely bifurcating. However, as genomic data has become more common in phylogenetic studies, it is not unusual to find reticulation among terminal lineages or among internal nodes (deep time reticulation; DTR). In these situations, gene flow must have happened in the same or adjacent geographic areas for these DTRs to have occurred and therefore biogeographic reconstruction should provide similar area estimates for parental nodes, provided extinction or dispersal has not eroded these patterns...
March 9, 2018: Systematic Biology
Tewodros T Wakie, Wee L Yee, Lisa G Neven
The European cherry fruit fly, Rhagoletis cerasi (L.) (Diptera: Tephritidae), is a highly destructive pest of cherries (Prunus spp.) (Rosaceae) in Europe and Asia. In 2016, R. cerasi was detected in Ontario, Canada, and in 2017 in New York State, USA, the first records of this pest in North America. The initial detections in Canada caused concern for the major cherry-growing states of Michigan, Washington, Oregon, and California in the United States. Establishment of R. cerasi in the United States could restrict cherry exports to other markets and increase costs needed for fly control, but it is unknown if R...
March 8, 2018: Journal of Economic Entomology
Shang Yin Vanson Liu, Shoou Jeng Joung, Chi-Ju Yu, Hua-Hsun Hsu, Wen-Pei Tsai, Kwang Ming Liu
The megamouth shark ( Megachasma pelagios ) was described as a new species in 1983. Since then, only ca . 100 individuals have been observed or caught. Its horizontal migration, dispersal, and connectivity patterns are still unknown due to its rarity. Two genetic markers were used in this study to reveal its genetic diversity and connectivity pattern. This approach provides a proxy to indirectly measure gene flow between populations. Tissues from 27 megamouth sharks caught by drift nets off the Hualien coast (eastern Taiwan) were collected from 2013 to 2015...
2018: PeerJ
Patrick M Newman, Molly F Franke, Jafet Arrieta, Hector Carrasco, Patrick Elliott, Hugo Flores, Alexandra Friedman, Sophia Graham, Luis Martinez, Lindsay Palazuelos, Kevin Savage, Hayley Tymeson, Daniel Palazuelos
Background: Non-communicable diseases (NCDs) contribute greatly to morbidity and mortality in low-income and middle-income countries (LMICs). Community health workers (CHWs) may improve disease control and medication adherence among patients with NCDs in LMICs, but data are lacking. We assessed the impact of a CHW-led intervention on disease control and adherence among patients with diabetes and/or hypertension in Chiapas, Mexico. Methods: We conducted a prospective observational study among adult patients with diabetes and/or hypertension, in the context of a stepped-wedge roll-out of a CHW-led intervention...
2018: BMJ Global Health
Luis A Ñacari, Fabiola A Sepulveda, Rubén Escribano, Rodney A Bray, Marcelo E Oliva
The Humboldt Current Large Marine Ecosystem (HCLME) is recognised as one of the largest and most productive marine ecosystems. The estimated number of teleost fish species for the Chilean coast influenced by the HCLME reaches c.1,030 but digeneans have been reported for 39 teleost species, i.e. less than 4% of the potential hosts. During a survey of parasites of the Galápagos sheephead wrasse Semicossyphus darwini (Jennyns) (Perciformes: Labridae) from off northern Chile, we obtained representatives of three digenean species, Helicometrina nimia Linton, 1910 (Opecoelidae), Proctoeces humboldti George-Nascimento & Quiroga, 1983 (Fellodistomidae) and Labrifer secundus Manter, 1940 (Lepidapedidae)...
March 10, 2018: Systematic Parasitology
Alexander Schrodt, Tam Huynh, Tamara N Fitzgerald
Motor vehicle collisions (MVCs) are a significant cause of pediatric morbidity, particularly in low- to middle-income countries. We describe car seat use in children on the USA-Mexico border. A retrospective review was conducted for children 0-9 years old, admitted to the region's only Level I trauma center. Simultaneously, data were obtained from the SAFE KIDS database, a program that encourages car seat use through city checkpoints. There were 250 MVC admissions and nine fatalities in children 0-9 years old from 2010 to 2015...
March 2018: Journal of Trauma Nursing: the Official Journal of the Society of Trauma Nurses
W Philip T James
BACKGROUND: This analysis sets out an overview of an IUNS presentation of a European clinician's assessment of the challenges of coping with immediate critical clinical problems and how to use metabolic and a mechanistic understanding of disease when developing nutritional policies. SUMMARY: Critically ill malnourished children prove very sensitive to both mineral and general nutritional overload, but after careful metabolic control they can cope with a high-quality, energy-rich diet provided their initial lactase deficiency and intestinal atrophy are taken into account...
March 8, 2018: Annals of Nutrition & Metabolism
Bernardo Ng, Alvaro Camacho, Katherine Parra, Ricardo de la Espriella, Victor Rico, Severiano Lozano, Mirna Troncoso, Ruby C Castilla-Puentes, Benjamin L Cook, Daniel E Jimenez
OBJECTIVE: The objective of this study is to examine the association of country of residence with body mass index (BMI) between Mexican and Colombian patients exposed to antipsychotics. We hypothesize that there will be a significant association between country of residence and BMI and that Mexican patients will have higher BMI than their Colombian counterparts. DESIGN: The International Study of Latinos on Antipsychotics (ISLA) is a multisite, international, cross sectional study of adult Latino patients exposed to antipsychotics in two Latin American Countries (i...
March 7, 2018: Ethnicity & Health
Ravi B Parikh, Justin E Bekelman, Amanda Hodlofksi, Amol S Navathe
No abstract text is available yet for this article.
March 3, 2018: Healthcare
Lou Lecuyer, Rehema M White, Birgit Schmook, Violaine Lemay, Sophie Calmé
A failure to address social concerns in biodiversity conservation can lead to feelings of injustice among some actors, and hence jeopardize conservation goals. The complex socio-cultural and political context of the Calakmul Biosphere Reserve, Mexico, has historically led to multiple biodiversity conflicts. Our goal, in this case study, was to explore perceptions of justice held by local actors in relation to biodiversity conflicts. We then aimed to determine the following: 1) people's definitions of their feelings of justice; 2) the criteria used in this assessment; 3) variability in the criteria influencing them; and 4) implications for environmental management in the region and beyond...
March 1, 2018: Journal of Environmental Management
Elizabeth K Dunford, Lindsey Smith Taillie, Donna R Miles, Helen Eyles, Lizbeth Tolentino-Mayo, Shu Wen Ng
Increased interest among consumers in the reduction of dietary sugar intake has led to the wider availability of food products containing non-nutritive sweeteners (NNS). However, the extent to which NNS are currently being used by manufacturers to sweeten processed food and beverage products, and how NNS may be displacing added sugars as a sweetener is unknown. The current study utilized branded food composition databases from Australia, Mexico, New Zealand and the US to determine the percentage of processed food and beverage products for which there are nutrition data containing NNS and to compare total sugar density (g per 100 mL for beverages and g per 100 g for foods) between products with and without NNS...
February 24, 2018: Nutrients
Antonin Jaros, Hafiz A Sroya, Venita K Wolfe, Vikas Ghai, Maria-Eleni Roumelioti, Kamran Shaffi, Kai Wang, Vernon Shane Pankratz, Mark L Unruh, Christos Argyropoulos
BACKGROUND: Rural areas in the state of New Mexico have been the "ground-zero" for the epidemic of diabetic Chronic Kidney Disease (CKD) in the United States. However, there is limited research about risk factors of diabetic CKD in this area and scarce data regarding the performance of emerging markers of renal filtration and epigenetic biomarkers of renal function and diabetes in this area with its unique ethnic/racial population. We designed the COMPASS study as a community-based program in rural New Mexico aiming to screen for CKD and to discover CKD-related translational biomarkers...
February 27, 2018: BMC Nephrology
Derek W Barchenger, Zong-Ming Sheu, Sanjeet Kumar, Shih-Wen Lin, Rishi R Burlakoti, Paul W Bosland
Peppers (Capsicum sp.) are an increasingly important crop because of their use as a vegetable, spice, and food colorant. The oomycete Phytophthora capsici is one of the most devastating pathogens to pepper production worldwide, causing more than $100 million in losses annually. Developing cultivars resistant to P. capsici is challenging because of the many physiological races that exist and new races that are continuously evolving. This problem is confounded by the lack of a universal system of race characterization...
February 27, 2018: Phytopathology
Michael J Skvarla
Sclerodermus Latreille, 1809 (Hymenoptera: Bethylidae), are parasitoids of wood-boring beetle larvae that can co-infest furniture and homes attacked by such larvae. This can result in the human inhabitants receiving stings from adult female wasps as they wander in search of new hosts. Herein, I report the first infestation of Sclerodermus macrogaster (Ashmead, 1887) of a home in North America and provide a review of Sclerodermus biology and clinical signs relevant to their pestiferous nature.
February 20, 2018: Journal of Medical Entomology
Minerva Catalán-Vázquez, Rosario Fernández-Plata, David Martínez-Briseño, Blanca Pelcastre-Villafuerte, Horacio Riojas-Rodríguez, Laura Suárez-González, Rogelio Pérez-Padilla, Astrid Schilmann
OBJECTIVE: The aim of this study was to analyze the factors enabling/limiting the use of improved cookstoves among rural fuel wood users from one mestizo and two indigenous communities eight years after an intervention in the state of Michoacan, in Mexico. METHODS: A qualitative study with an ethnographic perspective was conducted in 2013/2014 based on 62 interviews with women who had participated in an improved firewood cookstove program in 2005. Thematic qualitative content analysis was performed...
2018: PloS One
Franziska Klotz, Thorsten Brinkhoff, Heike M Freese, Matthias Wietz, Andreas Teske, Meinhard Simon, Helge-Ansgar Giebel
A heterotrophic, Gram-stain-negative, aerobic, sodium-requiring and motile bacterium was isolated from oil-contaminated surface water of the Gulf of Mexico during the Deepwater Horizon oil spill. Strain O3.65T showed highest 16S rRNA gene sequence similarity to Phaeobacter gallaeciensis BS107T and Phaeobacter inhibens T5T , both with 98.3 %, respectively. Based on complete genome analysis, highest similarity was observed to species of the genus Ruegeria. Strain O3.65T exhibited a broad salinity, temperature and pH range of 0...
February 6, 2018: International Journal of Systematic and Evolutionary Microbiology
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