Publications

coordinated and dissociated effects of testosterone on singing behavior and song control nuclei in canaries (serinus canaria).	temperate zone songbirds that breed seasonally exhibit pronounced differences in reproductive behaviors including song inside and outside the breeding season. springlike long daylengths are associated with increases in plasma testosterone (t) concentrations, as well as with increases in singing and in the volume of several brain nuclei known to control this behavior. the mechanisms whereby t can induce changes in behavior and brain, and whether or not these effects are differentially regulated, ...	2005	15777813
bradyrhizobium canariense sp. nov., an acid-tolerant endosymbiont that nodulates endemic genistoid legumes (papilionoideae: genisteae) from the canary islands, along with bradyrhizobium japonicum bv. genistearum, bradyrhizobium genospecies alpha and bradyrhizobium genospecies beta.	highly diverse bradyrhizobium strains nodulate genistoid legumes (brooms) in the canary islands, morocco, spain and the americas. phylogenetic analyses of its, atpd, glnii and reca sequences revealed that these isolates represent at least four distinct evolutionary lineages within the genus, namely bradyrhizobium japonicum and three unnamed genospecies. dna-dna hybridization experiments confirmed that one of the latter represents a new taxonomic species for which the name bradyrhizobium canarien ...	2005	15774626
molecular phylogenetics of the macaronesian-endemic genus bystropogon (lamiaceae): palaeo-islands, ecological shifts and interisland colonizations.	abstract a molecular phylogenetic study of bystropogon l'her. (lamiaceae) is presented. we performed a cladistic analysis of nucleotide sequences of the internal transcribed spacers (its), of the nuclear ribosomal dna, and of the trnl gene and trnl-trnf intergenic spacer of the chloroplast dna. bystropogon odoratissimus is the only species endemic to the canary islands that occurs in the three palaeo-islands of tenerife. this species is not part of an early diverging lineage of bystropogon and w ...	2005	15773944
diseases and causes of mortality among sea turtles stranded in the canary islands, spain (1998-2001).	this paper lists the pathological findings and causes of mortality of 93 sea turtles (88 caretta caretta, 3 chelonia mydas, and 2 dermochelys coriacea) stranded on the coasts of the canary islands between january 1998 and december 2001. of these, 25 (26.88%) had died of spontaneous diseases including different types of pneumonia, hepatitis, meningitis, septicemic processes and neoplasm. however, 65 turtles (69.89%) had died from lesions associated with human activities such as boat-strike injuri ...	2005	15759796
antidepressant properties of some hypericum canariense l. and hypericum glandulosum ait. extracts in the forced swimming test in mice.	it has been shown in a previous work that the methanol extract obtained from the aerial part in blossom of hypericum canariense l. and hypericum glandulosum ait. was active in the tetrabenazine and forced swimming test. in the present study, the central nervous effect of the aqueous, butanol and chloroform fractions obtained from the methanol extracts of these hypericum species was investigated in mice, particularly in animal models of depression. it was found that the immobility time in the for ...	2005	15740893
inadvertent exposure to organochlorine pesticides ddt and derivatives in people from the canary islands (spain).	in 1998, one of the largest determinations of organochlorine pesticides in a representative sample of a spanish population (682 serum samples from the canary islands) was made in the context of the "canary islands nutrition survey" (enca). in the canary islands, extensive farming areas have been developed in these last decades, with greenhouses dedicated to intensive cultivation using ddt in huge amounts. in spain, similarly to other european countries, ddt was banned in the late 1970s. the pest ...	2005	15740757
nuclear ribosomal dna and karyotypes indicate a nw african origin of south american hypochaeris (asteraceae, cichorieae).	hypochaeris has a disjunct distribution, with more than 15 species in the mediterranean region, the canary islands, europe, and asia, and more than 40 species in south america. previous studies have suggested that the new world taxa have evolved from ancestors similar to the central european h. maculata. based on internal transcribed spacer (its) sequences and fluorescence in situ hybridization (fish) with 5s and 18s-25s rdna of the previously overlooked hypochaeris angustifolia from moyen atlas ...	2005	15737585
resistance reshufflings (or refining the law of higgledy-piggledy). xiii international hiv drug resistance workshop, june 8-12, 2004, tenerife, canary islands.		2004	15719461
a retrospective description of a highly pathogenic avian influenza a virus (h7n1/carduelis/germany/72) in a free-living siskin (carduelis spinus linnaeus, 1758) and its accidental transmission to yellow canaries (serinus canaria linnaeus, 1758).	a haemagglutinating virus was isolated in summer 1972 from a single free-living siskin (carduelis spinus linnaeus, 1758) in embryonated chicken eggs. additional cases of morbidity or mortality were not observed in the area were the sick siskin was found. the virus was characterized as an avian influenza a virus of the subtype h7n1 and designated h7n1/carduelis/germany/72. the virus induced following experimental inoculation of chicken embryos a high rate mortality (mean death time approximately ...	2005	15714871
mitochondrial dna diversity in 17th-18th century remains from tenerife (canary islands).	mitochondrial dna sequences and restriction fragment length polymorphisms were retrieved (with >80% efficiency) from a 17th-18th century sample of 213 teeth from tenerife. the genetic composition of this population reveals an important ethnic heterogeneity. although the majority of detected haplotypes are of european origin, the high frequency of sub-saharan african haplotypes (15.63%), compared to that of the present-day population (6.6%), confirms the importance of the canary islands in the bl ...	2005	15714457
surveillance of imported diseases as a window to travel health risks.	when using all its advantages of clinical vigilance, direct communication,and fast feedback, a clinical surveillance network can be remarkably effective in detecting sentinel events and in translating the new information into modifications of clinical practice. travelers have great advantage when serving as surveillance tools for imported diseases. they travel widely and potentially expose themselves to all types of infectious diseases, they are very mobile, and they return during the incubation ...	2005	15701544
smoking and sickness absence among public health workers.	as well as causing sickness and death, smoking has high socio-economic costs. the aim of this paper was to examine how closely smoking is associated with sickness absence among healthcare workers.	2005	15694961
(gcg)11 founder mutation in the pabpn1 gene of opmd uruguayan families.	the dominant oculo-pharyngeal muscular dystrophy mutation consists of an expanded (gcn)(12-17) in the coding region of the polya binding protein nuclear 1 gene. a founder effect has been demonstrated in canadian and bukhara jewish populations with relatively high prevalence of this disease. since the oculo-pharyngeal muscular dystrophy prevalence was remarkably high in southern uruguay, a founder effect was hypothesized. to identify the ancestral haplotype we determined the (gcn) repeat number a ...	2005	15694141
genetic variation in epigenetic inheritance of ribosomal rna gene methylation in arabidopsis.	we investigated the fidelity of epigenetic inheritance in crosses between three accessions of the flowering plant arabidopsis thaliana (canary islands, cape verde islands, and columbia). specifically, we examined the cytosine methylation content of the ribosomal rna genes at the two nucleolus organizer regions (nor2 and nor4) in f1 and f2 hybrid individuals derived from reciprocal crosses between the high nor methylation strain, columbia, and the two other accessions, both of which have less nor ...	2005	15686517
colonisation and diversification of the blue tits (parus caeruleus teneriffae-group) in the canary islands.	the blue tit (parus caeruleus teneriffae group) is proposed to have colonised the canary islands from north africa according to an east-to-west stepping stone model, and today, the species group is divided into four subspecies, differing in morphological, acoustic, and ecological characters. this colonisation hypothesis was tested and the population structure between and within the islands studied using mitochondrial dna sequences of the non-coding and relatively fast evolving control region. ou ...	2005	15683925
isolation and identification of pathogenic acanthamoeba strains in tenerife, canary islands, spain from water sources.	a comprehensive survey to document the presence of free-living amoebae of the genus acanthamoeba was conducted in tap water and sea water sources related to human environments in tenerife, canary islands, spain. acanthamoeba identification was based on the morphology of cyst and trophozoite forms and pcr amplification with a genus-specific primer pair. the pathogenic potential of acanthamoeba isolates was characterized by temperature and osmotolerance assays and pcr reactions with two primer pai ...	2005	15678350
an epizootic of avian pox in endemic short-toed larks (calandrella rufescens) and berthelot's pipits (anthus berthelotti) in the canary islands, spain.	between january 2002 and november 2003, 50% (n = 395) of short-toed larks (calandrella rufescens) and 28% (n = 139) of berthelot's pipits (anthus berthelotti) examined on the islands of fuerteventura and lanzarote, canary islands, had gross lesions compatible with avian pox. however, spanish sparrows (passer hispaniolensis, n = 128) and trumpeter finches (bucanetes githagineus, n = 228), which inhabit the same steppe habitats associated with goat husbandry, did not have poxlike lesions. histopat ...	2005	15657273
bahia grass pollen specific ige is common in seasonal rhinitis patients but has limited cross-reactivity with ryegrass.	perennial ryegrass is a major cause of rhinitis in spring and early summer. bahia grass, paspalum notatum, flowers late into summer and could account for allergic rhinitis at this time. we determined the frequency of serum immunoglobulin (ig)e reactivity with bahia grass in ryegrass pollen allergic patients and investigated ige cross-reactivity between bahia and ryegrass.	2005	15647049
y-chromosome str haplotypes in the canary islands population (spain).	haplotype frequencies of eight y-chromosome str loci (dys19, dys389i, dys389ii, dys390, dys391, dys392, dys393 and dys385) were determined from a sample of 285 unrelated males from canary islands.	2005	15639620
linguistic perception: neural processing of a whistled language.	silbo gomero is a whistled language that is a rare and endangered surrogate of spanish, used by shepherds on the island of la gomera in the canary islands for communication over long distances on difficult terrain. here we show that areas of the brain normally associated with spoken-language function are also activated in proficient whistlers, but not in controls, when they are listening to silbo gomero. our findings demonstrate that the language-processing regions of the human brain can adapt t ...	2005	15635400
polycyclic aromatic hydrocarbons in smoke used to smoke cheese produced by the combustion of rock rose (cistus monspeliensis) and tree heather (erica arborea) wood.	in this work, the polycyclic aromatic hydrocarbons (pahs) and their methyl derivatives concentrations have been determined in smoke from the rock rose and tree heather wood combustion. the combustion is done in two types of smokers, kiln and drum, commonly used in the canary islands (spain) to smoke cheese. the low control of the operational conditions justify the great variability of the pahs concentration in the emissions, with values between 251.8 and 2547 microg/m3n. in general, the lowest c ...	2005	15631526
[the real philanthropic expedition of the smallpox vaccine: monarchy and modernity in 1803].	smallpox resulted in the death of 30 % of those who acquired it, so the preventive method discovered by edward jenner (london, 1798) spread very quickly. at the request in 1803 of carlos iv, king of spain, his government evaluated offers to carry smallpox vaccine to the colonies. the selected proposal, by doctor francisco xavier de balmis, sought to take the lymph to america and asia in a chain of arm to arm vaccination of foundlings. the expedition set sail from corunna on november 30, 1803, st ...	2004	15631178
a fractal analysis of pathogen detection by biosensors.	a fractal analysis is presented for the detection of pathogens such as franscisela tularensis, yersinia pestis (the bacterium that causes plague), bacillus anthracis, venezuelan equine encephalitis (vee) virus, vavcinia virus, and escherichia coli using a cellular analysis and notification of antigens risks and yields (canary) biosensor [t.h. rider, m.s. petrovic, f.e. nargi, j.d harper, e.d. schwoebel, r.h. mathews, d.j. blanchard, l.t bortolin, a.m. young, j. chen, m.a. hollis, a cell-based se ...	2005	15617812
performance of serological tests for trypanosoma evansi in experimentally inoculated goats.	natural trypanosoma evansi infection in the canary islands has only been diagnosed in the camel population, but dissemination of the disease in other hosts has not been excluded. the objective of this work was to assess the performance of serological antibody tests in experimentally inoculated goats. five canarian goats were inoculated intravenously with at least 1 x 10(5) t. evansi. the animals were kept for 8 months and checked monthly for the presence of the parasite and specific antibodies. ...	2004	15604484
use of the miniature anion exchange centrifugation technique to isolate trypanosoma evansi from goats.	deae (anion exchanger diethylaminoethyl)-cellulose and mini anion exchange centrifugation technique (maect) allow salivarian trypanosomes to be separated from the blood of affected animals. the purpose of this study was to assess the maect in goats infected with t. evansi. five adult canary goats were inoculated intravenously with at least 1 x 10(5) t. evansi isolated from a dromedary camel in the canary islands. the goats were monitored for specific antibodies and parasite detection. the inocul ...	2004	15604483
a tale of aborigines, conquerors and slaves: alu insertion polymorphisms and the peopling of canary islands.	classical, mitochondrial dna (mtdna) and y chromosome markers have been used to examine the genetic admixture in present day inhabitants of the canary islands. in this study, we report the analysis of ten autosomal alu insertion polymorphisms in 364 samples from the seven main islands of the archipelago, and their comparison to continental samples. the detection of population-specific alleles from the iberian peninsula and northwest africa, as well as their affinities on the basis of genetic dis ...	2004	15598218
helminth infracommunities of a population of the gran canaria giant lizard gallotia stehlini.	a survey of gastro-intestinal helminth communities of gallotia stehlini (sauria: lacertidae) from gran canaria island (canary archipelago, spain), was conducted to determine the prevalence, abundance and species diversity of intestinal parasites in these lizards. pharyngodonid nematodes were the most common intestinal helminths, three species being gallotia specialists. helminth infracommunities of g. stehlini were rich and appear to be closer to the interactive end of the continuum isolationist ...	2004	15575988
[familial multiple sclerosis in canary islands].	multiple sclerosis (ms) is an autoimmune disease that occurs in genetically predisposed individuals. its inheritance is polygenic. genetic epidemiology studies have shown an increased familial aggregation. aim. to determine the prevalence of familial ms (fms) in a series of patients from the canary islands.	2004	15573304
use of the mobile nylon bag technique to determine the digestible energy content of traditional and non-traditional feeds for swine.	the following experiment was conducted using the mobile nylon bag technique (mnbt) to determine dry matter and energy digestibility in traditional feeds as well as non-traditional feeds in order to calculate digestible energy (de) values for use in ration formulation programmes. a total of 22 ingredients were tested in this experiment including the traditional cereal grains barley, corn, oats and wheat, as well as secondary cereal grains such as normal and low viscosity rye, low lignin and high ...	2004	15570743
morphology, cytochemical staining, and ultrastructural characteristics of the blood cells of the giant lizard of el hierro (gallotia simonyi).	the object of this study was to examine the erythrocytes, leukocytes and thrombocytes of the giant lizard of el hierro (gallotia simonyi) by light and electron (tem) microscopy, and cytochemical staining. smears were prepared from blood from the ventral coccygeal vein of 10 healthy adult lizards (five males and five females) from the giant lizard of el hierro reproduction and research centre, canary islands, spain. the cytochemical stains used were: benzidine peroxidase (bp), chloroacetate ester ...	2005	15563919
a biological oil adsorption filter.	a new oil adsorption method called adsorption filtration (af) has been developed. it is a technology where by oil residues can be cleaned from water by running it through a simple filter made from freeze treated, dried, milled and then fragmented plant material. by choosing suitable plants and fragmentation sizes it is possible to produce filters, which pass water but adsorb oil. the aim of this study was to investigate the possibilities of manufacturing oil adsorbing filter materials from reed ...	2004	15556187
dentistry as canary?		2004	15553890
[poverty, social exclusion, social capital and health].	social capital is the social structure which facilitates the actions of individuals, stimulates production and allows for success. poverty maintains basic needs unmet (food, health, autonomy) over time and unvoluntarily. social exclusion does not allow individuals to participate in society. the following dimensions are assessed: financial poverty, social inclusion, employment, health and education. social participation, work integration, empowerment, self-esteem, and personal achievement should ...	2004	15553403
palatine torus in the pre-conquest inhabitants of the canary islands.	an unusually high frequency of palatine torus in prehistoric canary islands skeletal remains is investigated in terms of population origins, evolutionary forces (gene flow and genetic drift) and environmental effects. palatine torus frequencies (percent presence) are compared between the canary islands sample and skeletal samples from proposed ancestral regions, including northwest africa, northeast africa, sub-saharan africa, southern europe, northern europe and western asia. the frequency of p ...	2004	15553272
successful treatment of megabacteriosis in a canary (serinus canaria) with nystatin.		2004	15551929
are both sympatric species ilex perado and ilex canariensis secretly hybridizing? indication from nuclear markers collected in tenerife.	intra-specific and intra-individual polymorphism is frequently observed in nuclear markers of ilex (aquifoliaceae) and discrepancy between plastid and nuclear phylogenies is the rule in this genus. these observations suggest that inter-specific plastid or/and nuclear introgression played an important role in the process of evolution of ilex. with the aim of a precise understanding of the evolution of this genus, two distantly related sympatric species collected in tenerife (canary islands), i. p ...	2004	15550175
measles virus genotype circulation in spain after implementation of the national measles elimination plan 2001-2003.	molecular characterization of measles virus is important for disease surveillance and for monitoring elimination of the virus throughout the world. furthermore, knowledge of genotype distribution in as many countries as possible, is useful for tracing the origin of a strain, especially in countries without endemic measles disease, where most cases are imported. data on genotypes circulating in spain from 1970 to 1997 showed the prevalence of genotypes c1, c2, and d6, with subsequent replacement ...	2005	15543577
tissue distribution of metals in loggerhead turtles (caretta caretta) stranded in the canary islands, spain.		2004	15530530
[nutritional evaluation of health shift workers from the canary islands].	shift workers are known to have increased morbidity associated to wrong habits. in this study we have evaluated the nutritional status, food habits and physical activity in health shift workers.	2004	15516039
[application of multivariate analysis to the serum mineral and trace element content on differentiation of healthy subjects].	serum concentrations of na, k, ca, mg, fe, cu, zn, se, mn and p were determined in apparently health individuals representing of the population of the canary islands. multivariate analysis was applied on the data matrix in order to differentiate the individuals according several criteria such as gender, age, island and province of residence, smoking and drinking habits and physical exercise.	2004	15516035
levels of particulate matter in rural, urban and industrial sites in spain.	this paper summarises the results of a series of studies on the interpretation of time series of levels of total suspended particles (tsp) and particulate matter (pm, <10 microm) in six regions of spain in the period 1996-2000. in addition to the local pollution events, high pm10 episodes are recorded during african dust outbreaks, regional atmospheric recirculation events (mainly in spring to autumn), and to a lesser extent, under the influence of european and mediterranean long range transport ...	2004	15504522
antimicrobial susceptibility of enterococcus strains isolated from poultry faeces.	we have investigated the resistance of enterococcus isolated from poultry faeces to antibiotics commonly used as therapy of enterococcal infections. identification was made by the method of facklam and collins. minimal inhibitory concentrations of penicillin, ampicillin, vancomycin and teicoplanin were determined and high level aminoglycoside resistance was investigated. genes codifying high level aminoglycoside resistance (hlar) were determined by pcr. fifty five enterococcus strains were isola ...	2005	15500837
parasites of columba livia (aves: columbiformes) in tenerife (canary islands) and their role in the conservation biology of the laurel pigeons.	the prevalence and intensity of the parasites from 50 wild doves (columba livia) from the city of santa cruz de tenerife, in the island of tenerife (canary archipelago), were studied. the following ectoparasites were found in apparently healthy pigeons (prevalences are shown in percentage (%) and mean intensities with their standard deviations): the acari dermanyssus gallinae (de geer, 1778) (6, 241.0 +/- 138.9) and tinaminyssus melloi fain, 1962 (10%, 218.3 +/- 117.3); the louses, columbicola c ...	2004	15490756
leptin and altitude in the cardiovascular diseases.	the lower mortality from coronary ischemic disease in populations living at high altitude has been related to an increase of high-density lipoprotein (hdl)-cholesterol at altitude. leptin has been proposed as a cardiovascular risk factor. we investigated whether leptin varies according to the altitude at which people live.	2004	15483214
the precedence effect in three species of birds (melopsittacus undulatus, serinus canaria, and taeniopygia guttata).	the perceived locations of paired auditory images, simulating direct sounds and their echoes, have been recently studied in budgerigars (melopsittacus undulatus; m. l. dent & r. j. dooling, 2003a, 2003b). in this article, the authors extend those experiments to include measurements of the precedence effect using a discrimination paradigm in two additional bird species: canaries (serinus canaria) and zebra finches (taeniopygia guttata). although time courses of summing localization, localization ...	2004	15482060
pharmacological activities of some argyranthemum species growing in the canary islands.	methanolic extracts of eight subspecies of genus argyranthemum were evaluated against brine shrimps, human cancer cell lines, malarial parasites and microorganisms under in vitro conditions. in the shrimp assay, samples of a. adauctum ssp. adauctum, a. adauctum ssp. erythrocarpon and a. frutetescens ssp. succulentum were active with ed50 values in the range of around 300 to 360 microg/ml. in the caco-2, hepg2 and mcf-7 cell lines, the samples a. adauctum ssp. jacobaeifolium and a. adauctum ssp. ...	2004	15478196
comparative haematology and blood chemistry of endangered lizards (gallotia species) in the canary islands.	blood samples were taken from the ventral coccygeal vein of 15 el hierro giant lizards (gallotia simonyi) (seven females and eight males), six la gomera giant lizards (gallotia bravoana) (four males and two females) and four tenerife giant lizards (gallotia intermedia) (two males and two females), and 31 blood parameters were measured. among the haematological parameters there were significant differences between the three species in heterophils, azurophils and lymphocytes, but no significant di ...	2004	15461364
the burden of severe varicella in spain, 1995--2000 period.	population-based estimates of hospitalization rates for varicella provide data of the severe and costly end of this disease.	2004	15461202
prevalence and incidence of multiple sclerosis in las palmas, canary islands, spain.	to determine the prevalence and incidence of multiple sclerosis (ms) in the city of las palmas (canary islands, spain), geographically belonging to north-western africa, but with european ancestry.	2005	15459512
promoting social competence in deaf students: the effect of an intervention program.	the aim of this study was to determine the effects of a social skills training program on the social skills and social behaviors of deaf children in a mainstream setting. the study used a pretest/posttest design. the participants consisted of 18 severely and profoundly hearing-impaired children (ages ranged from 9;1 to 13;6) who were enrolled in three elementary schools in the canary islands. results indicated that the intervention succeeded in improving students' social problem-solving skills, ...	2000	15454498
pseudotuberculosis in dromedary camels in the canary islands.		2004	15449835
detour behaviour in three species of birds: quails (coturnix sp.), herring gulls (larus cachinnans) and canaries (serinus canaria).	detour behaviour is the ability of an animal to reach a goal stimulus by moving round any interposed obstacle. it has been widely studied and has been proposed as a test of insight learning in several species of mammals, but few data are available in birds. a comparative study in three species of birds, belonging to different eco-ethological niches, allows a better understanding of the cognitive mechanism of such detour behaviour. young quails (coturnix sp.), herring gulls (larus cachinnans) and ...	2005	15449104
[note on silicosis in tenerife, canary islands].		1950	15424458
heavy metals in the coastal environment of las galletas, tenerife, canary islands, spain.		2004	15386075
space use optimisation and sustainability-environmental comparison of international cases.	as a follow-up to our first paper in this journal, this paper discusses projects involving intensive and multiple use of space recently completed or still being developed around railway stations in london (broadgate and canary wharf), paris (seine rive gauche and la défense) and amsterdam (zuidas and bijlmer). the cases were compared on the basis of spatial, functional and environmental indicators, as treated in our first paper. the environmental performance of each of the cases was determined t ...	2004	15380314
radon exposure in uranium mining industry vs. exposure in tourist caves.	there is a fairly general consensus among health physicists and radiation professionals that exposure to radon progeny is the largest and most variable contribution to the population's exposure to natural sources of radiation. however, this exposure is the subject of continuing debate concerning the validity of risk assessment and recommendations on how to act in radon-prone areas. the purpose of this contribution is to situate the radon issue in spain in two very different settings. the first i ...	2004	15367766
genetic structure, phylogeography and demography of two ground-beetle species endemic to the tenerife laurel forest (canary islands).	the volcanic island of tenerife (canary archipelago) was formerly covered at 600-1200 m above sea level on most of its northern side by a cloud forest holding much of the endemic insect fauna. in the most significant surviving patches of this laurel forest at the eastern and western tips of the island occur two forest-specialist, closely related species of eutrichopus (coleoptera, carabidae); here we present data on mitochondrial dna variation among populations of these species. in total, 116 in ...	2004	15367128
avian pox in white-tailed laurel-pigeons from the canary islands.	two diseased young white-tailed laurel-pigeons (columba junoniae), an endemic and endangered species of the canary islands (spain), were found in la palma. they were very depressed and had severe cutaneous yellowish nodular lesions in feathered and unfeathered areas on the bodies of both birds. necropsy and histopathologic analyses were conducted. the presence of epidermal hypertrophy and hyperplasia in cutaneous lesions, as well as several acidophilic intracytoplasmic inclusions in affected epi ...	2004	15362841
digestive pathology of sea turtles stranded in the canary islands between 1993 and 2001.	digestive lesions were observed in 84 of 136 sea turtles (128 caretta caretta, four chelonia mydas and four dermochelys coriacea) stranded in the canary islands between january 1993 and december 2001. in the oral cavity ulcerative and necropurulent stomatitis were the most frequently observed lesions, and in the oesophagus ulcerative and fibrinous oesophagitis, and traumatic oesophageal perforation were most frequently observed; all these lesions were mainly associated with the ingestion of fish ...	2004	15357377
strong phylogeographic relationships among three goat breeds from the canary islands.	we partially sequenced the mitochondrial d-loop region in 47 individuals from eleven spanish and foreign goat breeds. phylogenetic analysis of these sequences allowed us to identify a particular d-loop haplotype shared by individuals from the palmera, majorera and tinerfeña canarian breeds. genotyping of 281 goats from 17 different breeds by pcr-hpall rflp evidenced that the geographical distribution of this haplotype is restricted to the canary islands. this ancestral mitochondrial haplotype mi ...	2004	15354570
inhibition of plasma butyrylcholinesterase activity in the lizard gallotia galloti palmae by pesticides: a field study.	a field study was performed to evaluate the effect of exposure to organophosphorus (op) and carbamate (cb) pesticides on the lizard gallotia galloti palmae. butyrylcholinesterase (bche) activity was measured in the plasma of 420 lizards collected from agricultural and reference areas on the island of la palma (canary islands, spain) in two sampling periods. exposure to cholinesterase-inhibiting pesticides was evaluated by a statistical criterion based on a threshold value (two standard deviation ...	2004	15325464
high-tech coal mine canary.		2004	15314678
birdsong and singing behavior.	birdsong provides neuroscientists with a uniquely powerful model for studying imitative vocal learning in a system where the brain structures responsible for song learning and production are well known. the 4,500+ species of songbirds provide a remarkable diversity of songs with a variety of tonal, structural, and learning characteristics, but most studies of the neural bases of learning have concentrated on two domesticated species, the canary and the zebra finch. important differences in the s ...	2004	15313767
sexually attractive phrases increase yolk androgens deposition in canaries (serinus canaria).	the androgen concentration in birds' eggs varies with laying order, breeding conditions, and mate attractiveness. in passerine birds, mate attractiveness depends upon song quality. the aim of our study was to evaluate the effect of one criterion used by females to assess male song quality that is to say the presence of sexually attractive phrases on yolk androgen deposition. twenty-five female canaries were assigned to three experimental groups; in the first group, the females were allowed to he ...	2004	15302260
folate status of adults living in the canary islands (spain).	human studies support the hypothesized contribution of folate deficiency to carcinogenesis and vascular risk. we assess the nutritional folate status and its relationship to folate intake, smoking, alcohol consumption, oral contraceptive use, and multivitamin supplements.	2004	15296077
a comparison of diagnosis of pregnancy in the goat via transrectal ultrasound scanning, progesterone, and pregnancy-associated glycoprotein assays.	real-time ultrasound scanning (us) via the transrectal route, progesterone (p4) assay, and pregnancy-associated glycoprotein (pag) detection can be used to diagnose pregnancy at around 3 weeks after breeding. although several studies have been carried out to evaluate each of these different methods individually, it is difficult to establish adequate comparisons due to differences, such as the breed of goat, age, and farming conditions, among others. the aim of the present paper is to compare the ...	2004	15289050
differential accumulation and pigmenting ability of dietary carotenoids in colorful finches.	many animals develop bright red, orange, or yellow carotenoid pigmentation that they use to attract mates. colorful carotenoid pigments are acquired from the diet and are either directly incorporated as integumentary colorants or metabolized into other forms before deposition. because animals often obtain several different carotenoids from plant and animal food sources, it is possible that these pigments are accumulated at different levels in the body and may play unique roles in shaping the ult ...	2004	15286921
bilateral song production in domestic canaries.	we studied the mechanism of song production in the outbred common or domestic canary (serinus canaria). the contribution that each side of the syrinx makes to song was investigated by observing the effect of unilaterally occluding the left or right primary bronchus, followed by section of the ipsilateral branch of the tracheosyringeal nerve. in other birds with a bilaterally intact vocal system we monitored airflow through each side of the syrinx, together with subsyringeal pressure, during spon ...	2004	15281075
study on the formation and transport of ozone in relation to the air quality management and vegetation protection in tenerife (canary islands).	an experimental study on the formation and transport of ozone in ambient air was performed in tenerife (canary islands) in order to investigate the processes affecting ozone levels and air quality. the special features of tenerife (prevalence of the trade wind pattern (ne), orography and the specific location of the local ozone sources) permit to quantify the role of the 'long-range transport from northern latitudes' versus the 'formation and transport of ozone downwind of the main urban areas' ...	2004	15276729
content of toxic and essential metals in canned mussels commonly consumed in tenerife, canary islands, spain.	concentrations of three toxic heavy metals (hg, pb, cd) and six essential heavy metals (fe, zn, mn, cr, cu, ni) were determined in mussel conserves (mytilus galloprovincialis, bivalvia, mollusca) consumed habitually by individuals in tenerife (canary islands, spain). a total of 600 samples were analyzed, corresponding to six different commercial brands and four different processing types: pickled sauce (mixture of olive oil, vinegar, red pepper, laurel, and salt), coquille st. jacques sauce (coq ...	2004	15270515
bioacoustics of human whistled languages: an alternative approach to the cognitive processes of language.	whistled languages are a valuable heritage of human culture. this paper gives a first survey about a new multidisciplinary approach to these languages. previous studies on whistled equivalents of languages have already documented that they can provide significant information about the role of rhythm and melody in language. to substantiate this, most whistles are represented by modulations of frequency, centered around 2000 hz (+/- 1000 hz) and often reach a loudness of about 130 db (measured at ...	2004	15258658
modulation by steroid hormones of a "sexy" acoustic signal in an oscine species, the common canary serinus canaria.	the respective influence of testosterone and estradiol on the structure of the common canary serinus canaria song was studied by experimentally controlling blood levels of steroid hormones in males and analyzing the consequent effects on acoustic parameters. a detailed acoustic analysis of the songs produced before and after hormonal manipulation revealed that testosterone and estradiol seem to control distinct song parameters independently. the presence of receptors for testosterone and estradi ...	2004	15258651
catecholaminergic inputs to aromatase cells in the canary auditory forebrain.	the caudomedial nidopallium in songbirds is a specialized forebrain auditory region involved in the processing of species-typical vocalizations. it receives a prominent catecholaminergic projection with many fibers forming basket-like structures around non-immunoreactive cells. we investigated in male canaries the anatomical relationship between tyrosine hydroxylase and cells immunoreactive for the steroid metabolizing enzyme, aromatase, in the caudomedial nidopallium using double-label immunocy ...	2004	15257136
european starling chicks benefit from high yolk testosterone levels during a drought year.	avian egg yolk contains androgenic hormones, such as testosterone, of maternal origin. experimental elevation of yolk testosterone levels enhances growth of canary chicks. success in sibling competition, due to increased begging, is presumed to underlie this growth enhancement, because canary hatchlings from testosterone-treated eggs beg longer in response to vibrational stimuli than controls. furthermore, experimental elevation of both yolk androstenedione and testosterone increased chick growt ...	2004	15256308
allozyme variation and structure of the canarian endemic palm tree phoenix canariensis (arecaceae): implications for conservation.	electrophoretic analysis of 18 allozyme loci was used to estimate the levels and structuring of genetic variation within and among natural populations of the protected endemic palm species from the canary islands (phoenix canariensis) to evaluate its genetic relationship with the widespread congener p. dactylifera, and to assess comparatively the genetic variation in the populations where the two species coexist with morphologically intermediate plants (mixed populations). our survey revealed th ...	2004	15241448
polypharmacy in psychiatric practice in the canary islands.	polypharmacy with psychoactive drugs is an increasingly common and debatable contemporary practice in clinical psychiatry based more upon experience than evidence. the objective of this study was to evaluate the prevalence and conditioners of polypharmacy in psychiatric patients.	2004	15236661
controversial issues associated with the prescription of benzodiazepines by general practitioners and psychiatrists.	benzodiazepines are commonly used psychotropics frequently applied in ways not fully supported by the present state of scientific knowledge. these departures are usually based on considerations of clinical practice characteristics seldom fully acknowledged by evidence based medicine.	2004	15232502
[socio-economic costs of mental health in the canary islands, spain, in 2002].	to evaluate the economic impact in terms of direct and indirect costs of the mental health in canary islands (spain) in 2002.	2004	15207197
murine typhus with renal involvement in canary islands, spain.	murine typhus and "murine-typhus-like" disease are reemerging infectious diseases. in canary islands (spain), a rather distinct clinical pattern characterized by higher incidence of complications, especially renal damage (including acute failure and urinalysis abnormalities), is apparent and highly suggestive. it could be related to different strains of rickettsia typhi or other cross-reactive species.	2004	15200874
serological study of contagious agalactia in herds of goats in the canary islands.	an indirect elisa, using local strains of mycoplasma agalactiae and mycoplasma mycoides subspecies mycoides large colony (mmmlc), was applied to evaluate the seroprevalence of m agalactiae and mmmlc in flocks of goats on each of the canary islands. in total 3890 samples of serum were collected from 204 flocks. the results indicated that the seroprevalence of both organisms is high on all the islands; average values of 55 per cent and 67 per cent were recorded, respectively, for m agalactiae and ...	2004	15200073
syllable repertoire and the size of the song control system in captive canaries (serinus canaria).	in songbirds, there is considerable interest in relationships between song structure and the size of the song control system in the forebrain. in male canaries, earlier studies have reported that repertoire size increased with age, and positive correlations were obtained between repertoire size and the volume of song control nuclei such as high vocal center (hvc). here we investigate whether age has an effect upon both the song structure and the morphology of two song control nuclei [hvc and rob ...	2004	15188269
molecular phylogenetic evidence for the geographic origin and classification of canary island lotus (fabaceae: loteae).	molecular phylogenetic analyses of macaronesian lotus and related genera were conducted to assess their biogeographic history and taxonomy. macaronesian lotus, which are typically classified within one of two subgenera, lotus subgenus pedrosia or l. subg. rhyncholotus, are diagnosed by the presence of a forked or toothed style and differences in corolla morphology. maximum parsimony and bayesian analyses of internal transcribed spacer sequences identify a well-supported northwest african-cape ve ...	2004	15186802
cryptic species related to daldinia concentrica and d. eschscholzii, with notes on d. bakeri.	daldinia macaronesica (from the canary islands and madeira), d. palmensis (from the canary islands), d. martinii and d. raimundi (from sicily), and d. vanderguchtiae (from jersey, channel islands) spp. nov., are described, based on new combinations of teleomorphic and anamorphic characters. they all resemble the pantropical d. eschscholzii and/or the european d. concentrica with regard to teleomorphic characters and secondary metabolite profiles generated by analytical hplc. the status of the ne ...	2004	15185977
recent advances in chromaffin cell biology: summing up the last international symposium on chromaffin cell biology.	the international symposium on chromaffin cell biology (isccb) brings together a group of approximately 150 scientists from around the world who meet every 2 years to discuss recent advances in our understanding of biogenesis and motion of secretory vesicles, synthesis, storage and release of secreted products (catecholamines, chromogranins, atp), and mechanisms involving the excitation-secretion coupling, membrane ion channels, intracellular calcium homeostasis and exocytosis. the development o ...	2004	15174301
[gender sensitivity in the formulation of spanish health plans: what it could have been but wasn't].	to systematically examine gender sensitivity in the policies formulated in the health plans of the various autonomous communities in spain in which these plans are available. we defined gender sensitivity as the extent to which the health plans took gender into account as a relation category and developed interventions to ameliorate gender-related inequalities.	2004	15171843
helminth infracommunities of gallotia caesaris caesaris and gallotia caesaris gomerae (sauria: lacertidae) from the canary islands (eastern atlantic).	a survey of gastrointestinal helminth communities of gallotia caesaris caesaris (lehrs, 1914) and g. c. gomerae (boettger and muller, 1914), from the islands of el hierro and la gomera, respectively, in the canary archipelago, spain, was conducted to determine the prevalence, intensity, and diversity of intestinal parasites of these lacertid lizards. larval forms of cestodes, nematodes, and acanthocephalans were found in the body cavity of g. c. caesaris; this lizard is the intermediate or parat ...	2004	15165048
isolation, geographical diversity and insecticidal activity of bacillus thuringiensis from soils in spain.	bacillus thuringiensis is a spore-forming bacterium showing the unusual ability to produce endogenous crystals during sporulation that are toxic for some pest insects. this work was performed to study the composition, ecological distribution and insecticidal activity of isolates of this entomopathogenic bacterium from the spanish territory. using a standard isolation method, b. thuringiensis was isolated from 115 out of 493 soil samples collected in the iberian peninsula and the canary and balea ...	2004	15160608
canary needs help; send for willie sutton.		2004	15144306
[murine tifus in canary islands, spain].		2004	15142516
serum concentrations of macro and trace elements in heroin addicts of the canary islands.	na, k, ca, mg, p, fe, cu, zn and se concentrations were determined in the serum of 106 heroin addicts and were compared with the concentrations obtained in a control group formed of 186 apparently healthy individuals. heroin addicts displayed k and se mean concentrations lower (p < 0.05), and na, mg, p mean concentrations and a cu/zn ratio higher (p < 0.05) than those mean values observed in the control group. the mg and p concentrations in the serum of heroin addicts tended to normalize when ag ...	2004	15139385
do therapeutic indications of antidepressants change from one year to another?	to analyse and describe the pattern of prescriptions for antidepressants by all psychiatrists working for the canary islands health service (cihs) during the 4-year period from 1999 to 2002.	2004	15133783
chemical composition of the sponge hymeniacidon sanguinea from the canary islands.	the fatty acid composition of the lipids from the sponge hymeniacidon sanguinea was investigated and 73 acids were identified. three of them were new and their structures, elucidated by gas chromatography/mass spectrometry, were identified as 13-methyl-icosanoic, 15-methyl-docosanoic and 3,13-dimethyl-tetradecanoic. only 12 sterols were present, with cholestanol predominating in the volatile fraction; 22 compounds were identified, mainly hydrocarbons and fatty acids. in the n-butanol fraction, w ...	2004	15123209
mitochondrial phylogeography of the long-eared bats (plecotus) in the mediterranean palaearctic and atlantic islands.	long-eared bats of the genus plecotus are widespread and common over most of the western palaearctic. based on recent molecular evidence, they proved to represent a complex of several cryptic species, with three new species being described from europe in 2002. evolutionary relationships among the different lineages are still fragmentary because of the limited geographic coverage of previous studies. here we analyze plecotus mitochondrial dna sequences from the entire mediterranean region and atl ...	2004	15120404
[gender has a strong modulating effect on the risk of alzheimer's disease conferred by the apolipoprotein e gene in the population of the canary islands, spain].	apolipoprotein e (apoe) gen has been found to confer risk for alzheimer disease in every population studied. we are interested in analyzed the exonic variants and the promoter polymorphisms in our canary population.	2004	15098180
treatment of wastewater effluents with phillipsite-rich tuffs.	the presence of abundant zeolites in association with volcanic pumiceous materials in tererife (canary islands) prompted us to study their properties as a water purifying bed for inorganic contaminants, pathogenic bacteria, and soluble organic matter. the experimental model used was a chemical percolation reactor with a constant flux of solution, where the fixation kinetics were studied by comparing the input and the output solutions. the ammonium and phosphate retention values found after 10 da ...	1992	15091986
the lizard gallotia galloti as a bioindicator of organophosphorus contamination in the canary islands.	the aim of this study is to propose a bioindicator organism, the lizard gallotia galloti, and a nondestructive biomarker assay, utilising serum butyrylcholinesterase, for the assessment of the toxicological impact of organophosphorus (op) insecticides in the canary islands. laboratory and field studies were performed using the op insecticide trichlorphon. in the laboratory study, experimental groups of gallotia galloti were treated with 5, 50 and 100 mg/kg of trichlorphon, respectively, and afte ...	1995	15091578
tumour spectrum of non-polyposis colorectal cancer (lynch syndrome) on the island of tenerife and influence of insularity on the clinical manifestations.	colorectal cancer is a complex disease from a genetic point of view because both genetic and environmental factors interact in its development. only familial adenomatous polyposis (fap) follows mendelian genetics, in that mutations of the apc gene lead to development of the tumours. lynch syndrome is the most frequent form of hereditary colorectal cancer and appears to be associated with other types of extracolonic cancers. the genetic basis has been established as a defect in dna mismatch repai ...	2004	15075785
prescribed daily doses and 'risk factors' associated with the use of benzodiazepines in primary care.	to assess the extent, characteristics and determinants of benzodiazepine prescription in outpatient primary health care.	1999	15073930
bioremediation process for sediments contaminated by heavy metals: feasibility study on a pilot scale.	the core stages of a sediment remediation process--the conditioning of dredged sludge by plants and the solid-bed leaching of heavy metals using microbially produced sulfuric acid--were tested on a pilot scale using a highly polluted river sediment. conditioning was performed in 50 m3 basins at sludge depths of 1.8 m. during one vegetation period the anoxic sludge turned into a soil-like oxic material and became very permeable to water. reed canary grass (phalaris arundinacea) was found to be be ...	2004	15046363
novel meroditerpenes from the brown alga cystoseira sp.	five new meroditerpenes have been isolated from a brown alga of the genus cystoseira collected around the canary islands. one, cystoseirone diacetate (3), possesses a new rearranged structure with an unusual ether linkage in the diterpene side chain. its biogenetic origin was explained as derived from the oxidation of amentol chromane diacetate (2) and subsequent cyclization. structures were determined through the interpretation of the spectral data and by means of chemical transformations. the ...	2004	15043443