12,364 results match your criteria: "Costa Rica; University of Maryland[Affiliation]"

Article Synopsis
  • A significant portion of patients (1 in 10) experience epilepsy after having cerebral venous thrombosis (CVT), but it's challenging to predict who will be affected.* -
  • Researchers created the DIAS3 prognostic score using clinical data from over 1,100 patients to assess the likelihood of developing post-CVT epilepsy based on six clinical variables.* -
  • The study found a range of predicted risks for post-CVT epilepsy within one and three years, with successful validation of the score confirming its effectiveness in estimating individual risk.*
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Purpose: To report interim results of the VENICE study, a multi-center, randomized, controlled trial (RCT) comparing STREAMLINE Surgical System (STREAMLINE) canaloplasty with iStent inject W (iStent W) implantation in patients with mild-to-moderate primary open-angle glaucoma (POAG) undergoing phacoemulsification.

Patients And Methods: Safety and efficacy analyses involving the first 72 randomized eyes are included in this report. Following pre- (Screening) and post-medication washout (Eligibility) visits, one eye per subject was randomized 1:1 to STREAMLINE or iStent W after undergoing uncomplicated phacoemulsification.

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  • The CheckMate-743 trial showed that nivolumab plus ipilimumab improves overall survival in patients with unresectable pleural mesothelioma compared to chemotherapy, but lacked representation of Latin American patients.
  • A retrospective study evaluated this treatment's effectiveness and safety in 96 LATAM patients, focusing on their demographic and clinical characteristics, with a median follow-up of 24.1 months.
  • Results indicated median progression-free survival of 8 months and overall survival of 22 months, confirming treatment benefits similar to other findings, with manageable adverse events reported.
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Introduction: The educational system in Costa Rica, as regulated by Law #7727, which governs Alternative Conflict Resolution and Promotion of Social Peace must consider the interplay of various factors influencing classroom conflicts and the management strategies employed by teachers. Consequently, it becomes imperative to identify the most effective conflict resolution practices applicable within this context. To achieve this, a thorough procedure based on mixed methods was employed to analyze and interpret both classroom conflict behaviors and teachers' strategic responses.

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Implementing active surveillance for low-risk thyroid carcinoma into clinical practice: collaborative recommendations for Latin America.

Arch Endocrinol Metab

October 2024

Universidad de Buenos Aires Hospital de Clínicas División de Endocrinología Buenos Aires Argentina División de Endocrinología, Hospital de Clínicas, Universidad de Buenos Aires, Buenos Aires, Argentina.

The incidence of thyroid cancer is increasing globally, but mortality rates have remained steady. Many patients with thyroid cancer have low-risk, nonmetastatic intrathyroidal tumors smaller than 2 cm. Active surveillance has shown benefits in these patients, but the adoption of this approach remains below standard in Latin America.

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The Gran Chaco and Pantanal ecoregions are the largest remaining dry forest areas in South America. Supporting diverse savanna, woodland and wetland ecosystems, these ecoregions are experiencing rapid changes in land use and fire occurrence with implications for ecosystem integrity. Our study characterizes the spatiotemporal patterns of wildfires in the Gran Chaco and Pantanal, and then examines the relationship between patterns of fire occurrence and climatic and anthropogenic drivers.

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This investigation aimed to analyze the effect that thawing time and temperature in combination with a termo-resistance test had on straws from dairy bulls used for artificial insemination (AI) on semen motility and kinematic variables measured with CASA systems. Eight animals of Holstein and Jersey breeds were used, and nine frozen-thawed semen doses per animal were analyzed for each breed. Three temperatures (35, 37, and 40 °C) and three thawing times (35, 40, and 45 s) were evaluated using a factorial design.

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Continuous research on breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) has introduced a focus on surface texturizations and a shift towards smooth breast devices, yet outcomes comparing the complication profiles of differently textured tissue expanders (TEs) remain conflicting. The study aim was to compare the complication profile of a new nanotextured and MRI-compatible TE to micro- and macrotextured TEs and to identify possible predictors for complications. A retrospective analysis of women undergoing expander-based breast reconstruction after mastectomy between January 2016 and March 2022 was conducted.

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Article Synopsis
  • * Analysis of data from over 1 million forest plots and thousands of tree species shows that wood density varies significantly by latitude, being up to 30% denser in tropical forests compared to boreal forests, and is influenced mainly by temperature and soil moisture.
  • * The research also finds that disturbances like human activity and fire alter wood density at local levels, affecting forest carbon stock estimates by up to 21%, emphasizing the importance of understanding environmental impacts on forest ecosystems.
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  • Researchers found that the subseafloor crust harbors not only microbes and viruses, but also animals like the giant tubeworm Riftia pachyptila, suggesting a link between seafloor and subseafloor ecosystems.
  • The study proposes that tubeworm larvae may travel through the hydrothermal vent fluid rather than dispersing in the open water.
  • The discovery of these animals in the subseafloor has significant implications for understanding geochemical processes and highlights the necessity of protecting these habitats, which are not yet fully understood.
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Ten simple rules to bridge ecology and palaeoecology by publishing outside palaeoecological journals.

PLoS Comput Biol

October 2024

Intituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico.

Owing to its specialised methodology, palaeoecology is often regarded as a separate field from ecology, even though it is essential for understanding long-term ecological processes that have shaped the ecosystems that ecologists study and manage. Despite advances in ecological modelling, sample dating, and proxy-based reconstructions facilitating direct comparison of palaeoecological data with neo-ecological data, most of the scientific knowledge derived from palaeoecological studies remains siloed. We surveyed a group of palaeo-researchers with experience in crossing the divide between palaeoecology and neo-ecology, to develop Ten Simple Rules for publishing your palaeoecological research in non-palaeo journals.

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Background: The Internet Addiction Test (IAT) was the first instrument created specifically to assess Internet addiction (IA). Although it was not validated during its creation, its validity has since been confirmed thanks to subsequent studies. The IAT is the first global psychometric measure tested worldwide that has been used in several studies as a research tool.

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Seed storage life in tropical areas is shortened by high humidity and temperature and the general inaccessibility to dehumidifying and refrigeration systems, resulting in rapid decreases in seed viability in storage as well as a high incidence of fungal and insect infestations. The dry chain, based on rapid and deep drying of seeds after harvest followed by packaging in moisture-proof containers, has been proposed as an effective method to maintain seed quality during medium-term storage in humid climates, even without refrigeration. In addition, seed drying with zeolite drying beads can be more effective and economical than sun or heated-air drying under these warm, humid conditions.

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Mortality burden and economic loss attributable to cold and heat in Central and South America.

Environ Epidemiol

December 2024

Environment & Health Modelling (EHM) Lab, Department of Public Health Environments and Society, London School of Hygiene & Tropical Medicine, London, United Kingdom.

Background: We quantify the mortality burden and economic loss attributable to nonoptimal temperatures for cold and heat in the Central and South American countries in the Multi-City Multi-Country (MCC) Collaborative Research Network.

Methods: We collected data for 66 locations from 13 countries in Central and South America to estimate location-specific temperature-mortality associations using time-series regression with distributed lag nonlinear models. We calculated the attributable deaths for cold and heat as the 2.

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Article Synopsis
  • - The study investigated outcomes of lumen-apposing metal stents (LAMS) placement in patients with surgically altered anatomy (SAA), which is not well-documented in existing literature, involving 270 patients across 25 tertiary care centers up to November 2023.
  • - Technical success of the procedures was very high at 98%, with clinical success at 97%, although there was a notable adverse event rate of 12%, with various degrees of severity recorded.
  • - The results suggest that while LAMS placement in SAA is effective, due to the risk of complications, these procedures should only be performed by experienced endoscopists in specialized centers.
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A high species diversity of (Basidiomycota, Hymenochaetales) in Central and South America, revealed after morphological and molecular analysis.

MycoKeys

October 2024

Institute for Plant Protection in Horticulture and Urban Green, Julius Kühn Institute, Messeweg 11/12, DE-38104, Braunschweig, Germany Institute for Plant Protection in Horticulture and Urban Green, Julius Kühn Institute Braunschweig Germany.

A study of corticioid fungi collections from Costa Rica, Panama, Colombia, and Ecuador has resulted in the identification of 26 morphospecies of . These distinctions were made based on characters such as basidiospore size and shape, cystidia morphology, basidioma texture, and hymenial surface configuration. Sequences of rDNA ITS were obtained for 12 of these species, and their relationships to previously known taxa were illustrated using Bayesian and Maximum Likelihood reconstructions of the phylogeny.

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Chili pepper anthracnose, caused by Colletotrichum spp., is a significant biotic stress affecting chili fruits globally. While fungicide application is commonly used for disease management due to its efficiency and costeffectiveness, excessive use poses risks to human health and the environment.

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Background: The burden of Alzheimer's disease and related dementias (AD/ADRD) in Costa Rica is expected to become one of the highest in the region. Early detection will help optimize resources and improve primary care interventions. The Montreal Cognitive Assessment (MoCA) has shown good sensitivity for detecting mild cognitive impairment (MCI), but specificity varies depending on the population.

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Article Synopsis
  • Vascular epiphytes in tropical montane cloud forests are at risk due to climate change, as rising cloud bases limit moisture and atmospheric inputs, particularly for those growing on isolated pasture trees.
  • Researchers studied the water relations of these epiphytes in Monteverde, Costa Rica, measuring sap velocity and microclimate variables across different seasons and sites.
  • Results showed that drought conditions increased the turgor loss point of the epiphytes, with significant correlations between microclimate and sap velocity in the wet season, highlighting potential vulnerabilities in pasture trees compared to those in the forest.
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Respiratory and allergic outcomes among farmworkers exposed to pesticides in Costa Rica.

Sci Total Environ

December 2024

Center for Environmental Research and Community Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, CA, USA.

Article Synopsis
  • A study was conducted among 299 farmworkers in Costa Rica to investigate the impact of pesticide exposure on respiratory and allergic health outcomes.
  • Researchers used questionnaires and urine samples to measure pesticide biomarkers and assess symptoms over the past year, employing complex statistical models.
  • Results indicated that specific pesticide metabolites, particularly those from organophosphates and fungicides, were linked to higher risks of asthma and rhinitis, with some herbicides showing negative associations, suggesting a complex relationship between pesticide exposure and health.
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  • A study was conducted on B^{+} decays to explore resonant structures using data from the LHCb experiment at various energy levels, totaling an integrated luminosity of 9 fb^{-1}.
  • The researchers performed a simultaneous amplitude fit on two decay channels, determining the C parities of resonances in the D^{*±}D^{∓} mass spectra.
  • Four new charmonium or charmoniumlike states were discovered, including η_{c}(3945) and h_{c}(4000), and the presence of T_{c[over ¯]s[over ¯]0}^{*}(2870)^{0} and T_{c[over ¯]s
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Regeneration of the caudal fin of the evolutionary ancient tropical gar Atractosteus tropicus.

BMC Zool

October 2024

EvoDevo Research Group, Unidad de Sistemas Arrecifales, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, UNAM, Puerto Morelos, Quintana Roo, México.

Article Synopsis
  • - The tropical gar, found from southeastern Mexico to southern Costa Rica, is significant for its unique evolutionary position as a bridge between tetrapods and teleosts, raising questions about its regenerative abilities compared to other fishes.
  • - The study observed juvenile tropical gar over two months, using various staining techniques to analyze the regeneration of their caudal fins after amputation, focusing on skeletal and tissue recovery.
  • - Results indicated that juvenile tropical gar have a strong ability to regenerate their caudal fins, suggesting potential implications for research on tissue regeneration in related fish species.
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For territorial animals, the behavior of conspecific neighbors sets the social context of communication. Despite numerous investigations of vocalizations related to territory defense and mate attraction, the effect of neighbor density on animal vocal behavior has received little attention, particularly in tropical animals and animals where both sexes produce complex acoustic signals. In this study, we used an innovative multispeaker playback experiment to manipulate the apparent density of neighbors in rufous-and-white wrens, , living in Costa Rica's tropical dry forest.

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