Michael R.S. Coffin, and Kyle M. Knysh, and Emma F. Theriault, and Christina C. Pater, and Simon C. Courtenay, and Michael R. van den Heuvel

Eutrophic aquatic habitats are characterized by the proliferation of vegetation leading to a large standing biomass that upon decomposition may create hypoxic (low-oxygen) conditions. This is indeed the case in nutrient impacted estuaries of Prince Edward Island, Canada, where macroalgae, from the genus Ulva, form submerged ephemeral mats. Hydrological forces and gases released from photosynthesis and decomposition lead to these mats occasionally floating to the water’s surface, henceforth terme...

S. J. Lawson, and M. D. Keywood, and I. E. Galbally, and J. L. Gras, and J. M. Cainey, and M. E. Cope, and P. B. Krummel, and P. J. Fraser, and L. P. Steele, and S. T. Bentley, and C. P. Meyer, and Z. Ristovski, and A. H. Goldstein

Biomass burning (BB) plumes were measured at the Cape Grim Baseline Air Pollution Station during the 2006 Precursors to Particles campaign, when emissions from a fire on nearby Robbins Island impacted the station. Measurements made included non-methane organic compounds (NMOCs) (PTR-MS), particle number size distribution, condensation nuclei (CN) > 3 nm, black carbon (BC) concentration, cloud condensation nuclei (CCN) number, ozone (O₃), methane (CH₄), carbon monoxide (CO),...

Y. I. Maltsev, and T. V. Konovalenko, and I. A. Barantsova, and I. A. Maltseva, and K. I. Maltseva

The development of industry, agriculture and the transport sector is associated with the use of various energy sources. Renewable energy sources, including biofuels, are highly promising in this respect. As shown by a number of scientific studies, a promising source for biofuel production that would meet modern requirements may be algal biomass. After activation of the third generation biodiesel production it was assumed that the algae would become the most advantageous source, because it is not...

Antoni Lombarte, and Òscar Chic, and Vicenç Parisi-Baradad, and Roger Olivella, and Jaume Piera, and Emilio García-Ladona

We present an automatic system for describing and identifying fish otolith shapes combining information technologies with modern advances in signal analysis. As a major novelty with respect to past studies the system includes wavelets (WT) and curvature space scale (CSS) analyses that have been shown to provide local morphologic information and characteristics (landmarks) of the sagitta otolith outline for non-specialists. By applying this electronic catalogue directly the system is very helpful...

Lisette Bijker, and Annet Kleiboer, and Heleen M. Riper, and Pim Cuijpers, and Tara Donker

Background: Depression has a high impact on both patients and the people around them. These non-professional caregivers often experience overburdening and are at risk for developing psychological symptoms themselves. Internet interventions have the potential to be accessible and (cost)-effective in terms of reducing and preventing psychological symptoms. Less is known about their potential to decrease psychological distress among caregivers. The primary aim of this study is to evaluate (1) the u...

Sandie M Degnan

Since the origin of the animal kingdom, marine animals have lived in association with viruses, prokaryotes and unicellular eukaryotes, often as symbionts. This long and continuous interaction has provided ample opportunity not only for the evolution of intimate interactions such as sharing of metabolic pathways, but also for horizontal gene transfer (HGT) of non-metazoan genes into metazoan genomes. The number of demonstrated cases of inter-kingdom HGT is currently small, such that it is not yet...

Carla N. M. Polaz, and Fabio C. Ferreira, and Miguel Petrere Júnior

ABSTRACT Considering the need for the Brazilian government to develop tools for environmental monitoring for biodiversity conservancy purposes in the national protected areas system, this paper focuses on determining reference site metrics (or baselines) for adapting the Index of Biotic Integrity (IBI) based on the fish assemblages in the Pantanal National Park (PNP). The habitats in the PNP were grouped into four categories: main rivers, corixos (channels connecting the floodplain), permanent b...

Jana Fischereit, and K. Heinke Schlünzen, and Andrea M.U. Gierisch, and David Grawe, and Ronny Petrik

Tides influence both the formation and development of sea breezes. The aim of this study is to investigate the tidal influence to decide which model complexity is needed to reproduce the main influence of tides in a numerical model of coastal meteorology. Two processes are considered: (a) the influence of tides on sea breezes through the effect of tidal currents on the surface wind and (b) the thermal influence through the flooding and drying of mudflats in the intertidal area. The processes are...

Sammen Huang, and Wenliang Chen, and Jiyan Pang, and Zhong Pei, and Guan-Lei Wang, and Hong-Shuo Sun

Coastal medicine is a promising field for research and drug development, because several natural products isolated from marine organisms have been found to be therapeutically useful in a clinical setting. In comparison to terrestrial products, the merit of marine compounds arises from the diversity in their chemical structure and unique bioactivity. A recently discovered marine compound, xyloketal B, displays neuroprotective and antioxidative effects in in-vitro and in-vivo experimental mod...

Davies Olabisi Flora, and Adeleye Isaac Adeyemi, and Wang Peng George

Objective: To isolate and screen Actinomycetes from Lagos Lagoon soil sediments for antibiotic production. Methods: Soil samples were collected from four different locations of Lagos Lagoon and were dried for 2 weeks. Actinomycetes were isolated by serial dilution using spread plate method on starch casein and Kuster’s agar supplemented with 80 μg/mL cycloheximide to prevent fungal growth. The plates were incubated at 28 °C for 1-2 weeks. Isolates were selected based on their cultural char...

Kleoniki Linariti, and Marianthe Zachou, and Maria Glykokokalou, and Liza Vlastou, and Antonia Skarpou, and Christos F. Kleisiaris

Introduction: Early detection of Chronic Obstructive Pulmonary Diseases (COPD) is the key for its control and management in Primary Health Care. Nurses could significantly contribute to the early detection of COPD if they receive appropriate training and develop skills such as performing spirometry tests and assess early COPD’s signs and symptoms. Aim: To assess the ability of nursing students to detect undiagnosed cases of COPD through a designed spirometry program. Methods: Participants were...

Nurul Farhana Rosly, and Rabeah Adawiyah Abdul Razak, and Palaniselvam Kuppusamy, and Mashitah M. Yusoff, and Natanamurugaraj Govindan

Objective: To the effect of salinity stress on the production of microalgae (Lyngbya sp.) and chlorophyll pigments in the growth medium. Methods: Stress was investigated by using green algae strains Lyngbya sp. in response to change bioactive compounds without any modification of cell growth and biomass production rate. The different stress conditions like 10%-40% were analyzed. Results: During the stress condition, various biochemical and microbiological assays were monitored. The p...

M. Morsy El Gohary, and Ibrahim Sadek Seddiek

Marine transportation industry is undergoing a number of problems. Some of these problems are associated with conventional marine fuel-oils. Many researchers have showed that fuel-oil is considered as the main component that causes both environmental and economic problems, especially with the continuous rising of fuel cost. This paper investigates the capability of using natural gas and hydrogen as alternative fuel instead of diesel oil for marine gas turbine, the effect of the alternative fuel ...

H.-S. Park, and A. L. Stewart

The authors present an analytical model for wind-driven free drift of sea ice that allows for an arbitrary mixture of ice and open water. The model includes an ice–ocean boundary layer with an Ekman spiral, forced by transfers of wind-input momentum both through the sea ice and directly into the open water between the ice floes. The analytical tractability of this model allows efficient calculation of the ice velocity provided that the surface wind field is known and that the ocean geostro...

R. Burkovskis, and R. Palšaitis

This article offers the panoramic view to interoperability of sea and railway transport in Lithuania. Serious attention is being given to the cargo flows forecasts, analysis of geographic, political, legal, economical, technical and other factors influencing the intensity of transit cargo flows and using the existing infrastructure capacities. Improvement and further development of technological and technical base of railways for the development of container transportation is identified. Optimiz...

Tiago R.N. Bertaso, and Marcia R. Spies, and Carla B. Kotzian, and Maria L.T. Flores

The effects of forest conversion to agricultural land uses on assemblages of aquatic insects were analyzed in subtropical streams. Organisms and environmental variables were collected in six low-order streams: three streams located in a forested area, and three in areas converted to agricultural land uses. We expected that the aquatic insects' assemblage attributes would be significantly affected by forest conversion, as well as by environmental variables. Streams in converted areas presented lo...

Shuang-Jing Wang, and Long Cao, and Na Li

Based on simulations using the University of Victoria's Earth System Climate Model, we analyzed the responses of the ocean carbon cycle to increasing atmospheric CO2 levels and climate change from 1800 to 2500 following the RCP 8.5 scenario and its extension. Compared to simulations without climate change, the simulation with a climate sensitivity of 3.0 K shows that in 2100, due to increased atmospheric CO2 concentrations, the simulated sea surface temperature increases by 2.7 K, the intensity ...

L Koen, and C E van den Berg, and D J H Niehaus

Objective. Clozapine is the current gold standard treatment for severe treatment-refractory schizophrenia, but even so 40 - 70% of these patients will continue to experience disabling symptoms when treated with clozapine monotherapy. Current clinical practice at Stikland Hospital holds that known clozapine-refractory schizophrenia patients who relapse due to non-compliance are treated with an initial combination of clozapine and ECT (if able to consent) when readmitted. The purpose of this study...

Javier Sospedra, and L. Felipe H. Niencheski, and Silvia Falco, and Carlos F.F. Andrade, and Karina K. Attisano, and Miguel Rodilla

Silicon is a major nutrient for siliceous primary producers, which can become a potential limiting nutrient in oligotrophic areas. Most of the silicon inputs to the marine environment come from continental discharges, from both superficial and ground waters. This study analyses the main sources of silicon and their dynamics along the southernmost 43 km of shoreline in the Gulf of Valencia (Western Mediterranean Sea). The salinity and silicate concentration in the different compartments (springs,...

Xin eChen, and Xin eChen, and Lu eWan, and Lu eWan, and Wen eQin, and Weimin eZheng, and Weimin eZheng, and Zhigang eQi, and Zhigang eQi, and Nan eChen, and Nan eChen, and Kuncheng eLi, and Kuncheng eLi

Motor imagery (MI) is a cognitive process involved in mentally rehearsing movement representations, and it has great potential for use in the rehabilitation of motor function in patients with spinal cord injuries. The aim of this study was to explore changes in the brain activation patterns in incomplete spinal cord injury (ISCI) patients during motor execution (ME) and MI tasks, and to thereby explore whether MI shares similar motor-related networks with ME in ISCI patients. Seventeen right-han...

Hai Minh Nguyen, and Jumpei eMatsumoto, and Anh Hai Tran, and Taketoshi eOno, and Hisao eNishijo

Previous studies have reported that multiple brain regions are activated during spatial navigation. However, it is unclear whether these activated brain regions are specifically associated with spatial updating or whether some regions are recruited for parallel cognitive processes. The present study aimed to localize current sources of event related potentials (ERPs) associated with spatial updating specifically. In the control phase of the experiment, electroencephalograms (EEGs) were recorded ...

L.-Q. Jiang, and S. A. O'Connor, and K. M. Arzayus, and A. R. Parsons

This paper defines the best practices for documenting ocean acidification (OA) data and presents a framework for an OA metadata template. Metadata is structured information that describes and locates an information resource. It is the key to ensuring that a data set will be accessible into the future. With the rapid expansion of studies on biological responses to OA, the lack of a common metadata template to document the resulting data poses a significant hindrance to effective OA data managemen...

Giulia Gorelli, and Marta Blanco, and Francesc Sardà, and Marta Carretón, and Joan B. Company

In this work we analysed the spatio-temporal variability of discards in the fishery of the deep-sea red shrimp Aristeus antennatus in the northwestern Mediterranean Sea. We sampled fishery discards in the fishing grounds of Palamós (the main harbour for this fishery on the Catalan margin), which are located in several areas of a submarine canyon. We found that the discard ratio in this fishery showed a marked seasonal variability, with a maximum in spring and a minimum in summer. Most of the dis...

Dr. Saumen Kumar Maitra, and Kazi Nurul Hasan

Reproduction in most fish is seasonal or periodic and the spawning occurs in an appropriate season to ensure maximum survival of the offspring. The sequence of reproductive events in an annual cycle is largely under the control of a species-specific endogenous timing system, which essentially relies on a well-equipped physiological response mechanism to changing environmental cues. The duration of solar light or photoperiod is one of the most predictable environmental signals used by a large num...

Francisco Eduardo Alves de Almeida

Em 1899 C.S Forester nasceu no Cairo, Egito. Sua carreira na literatura incluiu livros sobre história, biografias e romances históricos, a maioria com temas voltados para a guerra no mar. Dentre seus romances navais mais conhecidos inclui-se a vida do personagem Horatio Hornblower.  Forester foi um estudioso do período napoleônico e Hornblower nasceu de sua imaginação como um oficial de marinha britânico na Armada de Nelson. Em uma série de dez livros acabados e um por terminar Forester percorre...

Sarah Chapman, and Alice Sibelli, and Alastair Forbes, and Anja St. Clair-Jones

Background Adherence to appropriately prescribed medication can reduce flare-ups and increase quality of life for people with inflammatory bowel disease (IBD). But, many people do not obtain the full benefits from maintenance treatment because of under use (known as nonadherence). The Perceptions and Practicalities Approach (PAPA) suggests that tailored support which meets the needs of the patient by identifying and addressing specific perceptual factors (e.g. beliefs about the illness and treat...

Olumide Adedokun Odeyemi, and Asmat Ahmad

Objective: To investigate antibiotics and heavy metals resistance profile of Aeromonas species isolated from Kuala Gula and Kuala Sepetang, Perak. Methods: Isolated Aeromonas species were subjected to 12 antibiotics: penicillin G 10 units, tetracycline 30 µg, novobiocin 5 µg, nitrofurantoin 100 µg, ampicillin 10 µg, chloramphenicol 10 µg, fluconazole 25 µg, gentamicin 10 µg, streptomycin 10 µg and 25 µg, kanamycin 30 µg, and vancomycin 30 µg and 5 heavy metals: MnSO4.H2O, Cr(NO3).9H2O, CuSO...

K. M. G. Mostofa, and C.-Q. Liu, and W. Zhai, and M. Minella, and D. Vione, and K. Gao, and D. Minakata, and T. Arakaki, and T. Yoshioka, and K. Hayakawa, and E. Konohira, and E. Tanoue, and A. Akhand, and A. Chanda, and B. Wang, and H. Sakugawa

Ocean acidification, a complex phenomenon that lowers seawater pH, is the net outcome of several contributions. They include the dissolution of increasing atmospheric CO₂ that adds up with dissolved inorganic carbon (dissolved CO₂, H₂CO₃, HCO₃⁻, and CO₃²⁻) generated upon mineralization of primary producers (PP) and dissolved organic matter (DOM). The aquatic processes leading to inorganic carbon are substanti...

Angela M. Zanata, and Priscila Camelier

A new species of Hyphessobrycon Ellis is described from tributaries of the upper rio de Contas, Bahia, Brazil. The new species can be diagnosed from its congeners by having low body depth, a broad black stripe along lateral of body that extends weakly through median caudal-fin rays, absence of humeral spot and orange- to reddish life coloration.

Fernando Luis Dultra Cintra, and Paulo Leonel Libardi, and Antonio Melhem Saad

A má distribuição das chuvas e a existência de camadas coesas em muitos solos dos tabuleiros promovem, muitas vezes, alterações importantes no regime hídrico do solo e nas taxas de evapotranspiração das culturas exploradas nesse ecossistema. Objetivou-se, com este trabalho, conhecer, através do balanço hídrico, como esses processos ocorrem e, também, contribuir para o estabelecimento de práticas de manejo visando ao melhor uso das reservas de água no solo. Todos os componentes do balanço foram m...

J. Zhou, and B. Delille, and F. Brabant, and J.-L. Tison

We present and compare the dynamics (i.e., changes in standing stocks, saturation levels and concentrations) of O₂, Ar and N₂ in landfast sea ice, collected in Barrow (Alaska), from February through June 2009. The comparison suggests that the dynamic of O₂ in sea ice strongly depends on physical processes (gas incorporation and subsequent transport). Since Ar and N₂ are only sensitive to the physical processes in the present study, we then discuss the ...

Gianluca Bianchini, and Claudio Natali, and Riccardo Fogli, and Livia Vittori Antisari

A very hot debate is currently focused on submerged substrates that can be classified either as sediments or subaqueous soils. In this paper, the controversy is contextualized on a specific case study, i.e. the Sacca di Goro coastal lagoon facing the North Adriatic Sea. The submerged substrate has been sampled along a a E-W transect and subsequently analyzed to investigate the C-N elemental and isotopic compositions. The recorded concentration of organic carbon (OC) and nitrogen is 0.26-0.50 and...

F. Heuer, and D. Korn, and Z. Belka, and V. Hairapetian

The Devonian reef limestone complex of Rösenbeck near Brilon (Rhenish Mountains) shows numerous neptunian dykes and other hollows which have been filled with Carboniferous siliciclastic as well as fossil-rich carbonate sediments with ammonoids, conodonts, and chondrichthyan fish. While the shales of the infill can be interpreted as autochthonous sediments, the carbonates represent erratic blocks of sediments which were deposited in elevated areas but subsequently eroded and transported as errati...

Tae-Ho Yoon, and Hye-Eun Kang, and Chang-Keun Kang, and Sang Heon Lee, and Do-Hwan Ahn, and Hyun Park, and Hyun-Woo Kim

We developed a cost-effective metabarcoding strategy to analyze phytoplankton community structure using the Illumina MiSeq system. The amplicons (404–411 bp) obtained by end-pairing of two reads were sufficiently long to distinguish algal species and provided barcode data equivalent to those generated with the Roche 454 system, but at less than 1/20th of the cost. The original universal primer sequences targeting the 23S rDNA region and the PCR strategy were both modified, and this resulted in h...

Pablo Pita, and Juan Freire, and Antonio García-Allut

Fishery statistics do not usually include small-scale spatial references to assess the effects of natural or human disturbances. We present a methodology which assigns a geographical origin to the catches and assesses the total revenue of the fishing grounds. Market statistics are combined with the results of an ethnographic survey to provide a spatial allocation of the fishing effort. In the present case study, which corresponds to the Galician coast (NW Spain), 253 vessels from 14 base ports t...

S. GIAKOUMI, and G.D. KOKKORIS

This is the first study to explore fish community structure and its relations to habitat and topographic complexity in the shallow coastal waters of the Cyclades Archipelago, North-eastern Mediterranean Sea. In situ visual surveys were carried out at 233 sampling sites in 26 islands of the Cyclades Archipelago. Fish community parameters and biomass were estimated across seven substrate types: sand, seagrass, vertical walls, boulders, horizontal/subhorizontal continuous rock, rocky substrate with...

D. N. Goldberg, and P. Heimbach

To date, assimilation of observations into large-scale ice models has consisted predominantly of time-independent inversions of surface velocities for basal traction, bed elevation, or ice stiffness, and has relied primarily on analytically derived adjoints of glaciological stress balance models. To overcome limitations of such "snapshot" inversions – i.e., their inability to assimilate time-dependent data for the purpose of constraining transient flow states, or to produce initial states with m...

Boiko V.V., and Kuzmenko A.О. , and Chala O.M., and Khlevniuk T.V. , and Khlevniuk D.V.

Blasting (B) in the industry, including the mining extraction of minerals, are carried out mostly with the use of blasthole charges that systematically distributed on the block that is undermined, by individual groups. The latter are blasted according to the scheme of short-delay firing (SDF) through the intervals that are accepted not less than 20 Ms. Thus, the seismic effect of group charge explosion, consisting of individual blasthole charges and that actually is a group located charge determ...

T. E. Cox, and F. Gazeau, and S. Alliouane, and I. E. Hendriks, and P. Mahacek, and A. Le Fur, and J.-P. Gattuso

Seagrass is expected to benefit from increased carbon availability under future ocean acidification. This hypothesis has been little tested by in situ manipulation. To test for ocean acidification effects on seagrass meadows under controlled CO₂/pH conditions, we used a Free Ocean Carbon Dioxide Enrichment (FOCE) system which allows for the manipulation of pH as continuous offset from ambient. It was deployed in a <i>Posidonia</i> oceanica meadow at 11 m depth in the Northwestern Medi...

Juan José Neiff, and Alicia Poi de Neiff, and Marta B. Canón Verón

In this paper, we analyze the changes in composition and abundance of fish assemblages in seven vegetated floodplain wetlands with different connectivity across different hydrologic conditions: after a prolonged connection of the floodplain with the main channel, during receding water, and after a prolonged isolation. We also investigated the size and abundance of large-sized migratory species found in these wetlands and the food resources exploited by the dominant fish. Fishes were captured by ...

S. Schwegmann, and E. Rinne, and R. Ricker, and S. Hendricks, and V. Helm

Knowledge about Antarctic sea-ice volume and its changes over the past decades has been sparse due to the lack of systematic sea-ice thickness measurements in this remote area. Recently, first attempts have been made to develop a sea-ice thickness product over the Southern Ocean from space-borne radar altimetry and results look promising. Today, more than 20 years of radar altimeter data are potentially available for such products. However, the characteristics of individual radar types differ fo...

Haibo LI, and Siyu WANG, and Chen SUN, and Zhiyong TIAN, and Liancheng XIANG, and Xiaoling LIU, and Beihai ZHOU

In order to guarantee the running effect of Guodian Shenyang North Wastewater Treatment Plant, based on excitation-emission matrix (EEM) fluorescence spectroscopy, fluorescence regional integration (FRI) and material balance are used to evaluate the dissolved organic matter removal performance of modified A2O process. The results suggest that the albuminoid matters are the dominant components in modified A2O process influent, and there is small amount of fulvic-like materials. The removal effici...

Taner Yıldız, and F. Saadet Karakulak, and Abdullah E. Kahraman

O. Roger Anderson

Marine and estuarine microbial biofilms are ubiquitously distributed worldwide and are increasingly of interest in basic and applied sciences because of their unique structural and functional features that make them remarkably different from the biota in the plankton. This is a review of some current scientific knowledge of naturally occurring microbial marine and estuarine biofilms including prokaryotic and microeukaryotic biota, but excluding research specifically on engineering and applied as...

Andreas Richard Schwerdtfeger, and Catalina eSchmitz, and Matthias eWarken

Sedentarism is a serious health concern in industrialized countries throughout the world. We examined whether a text message-based intervention, targeted at increasing daily levels of physical activity, would be more effective than a standard psychoeducational intervention and a control condition. Sixty-three individuals (43 women) with a mean age of 23.7 years participated in the study. They were randomly assigned to a psychoeducational standard intervention; an augmented intervention with addi...

Alba Hernández Otero, and Gonzalo Macho, and Cristina Martinez Castro, and Pedro Ferreiro, and Miguel Baptiste Gaspar

Knowledge of the biology of economically important marine resources is essential in fisheries management. However, the methodologies developed by scientists are usually not applicable for assessing small-scale fisheries (SSFs), as they are too complicated and/or too costly. Classic methodologies taken from industrial fisheries are usually very data demanding and need of highly specialized personnel in modelling and stock assessment; both things are usually not present in most of the small-scale ...

Fernando Martínez Santa, and Santiago Orjuela Rivera, and Mario Arbulú Saavedra

Context: This work shows a novel navigation approach based on images for an assistant hybrid robot composed by a humanoid and an omnidirectional platform. Method: This approach introduces a complex space analysis, using Zeros and Poles attraction-repulsion principle. In order to perform the algorithm, an integrated system is developed; this system includes: an external camera to take a global navigation surface view, the assistant robot, and communication devices. Navigation is supported by some...

Eberson Pessoa Ribeiro, and Joyce Veruska Bezerra Alves, and Alexsandro Bezerra Correia Bilar, and Flávia Fernanda da Silva Moura

Local productive arrangements (LPAs) are important options for the implementation of job-creating public policies and income in a sustainable way. In Brazil, such policies to encourage organizations, although recent, has become consistent and the results of its implementation can already be perceived. This work consisted in analyzing the performance of the Development Company of the São Francisco and Parnaíba (Codevasf) in the local productive arrangement of fish farming in the municipality of S...

Nouf M. Al-Enazi, and Amani S. Awaad, and Saleh I. Alqasoumi, and Metab F. Alwethairi

The biological activities; antimicrobial, antioxidant and anticancer, of the red algae Galaxaura rugosa and Liagora hawaiiana were determined. The total ethanol, lipoidal matters, chloroform, n-butanol, aqueous extracts and powder of both algae showed and bacterial and antifungal activities. However, the chloroform extract of Galaxaura rugosa showed antibacterial activity against Klebsiella pneumoniae (24 mm, 0.15 mg/ml) higher than gentamycin (23 mm, 0.49 mg/ml). Moreover, the total ethanol, li...

W.J. Santos-Fernández, and G.S. Jones-Turcios, and G.L. Ávila-Valle, and S. Portillo-Canales, and E. Orellana-Áragon, and Á. Mayorga, and E.F. Herrera-Paz

Background: The rise in consultations for asthma or wheezing in primary and hospital care in recent years suggests a progressive increase in the prevalence of this disease, causing morbidity and considerable medical expenses. However, in Honduras no information about the prevalence of asthma and its trends is available. The aim was to determine the prevalence of asthma in the school-aged and adolescent population in several coastal communities in Honduras. Methods: We performed a multi-centre, o...