Academic literature on the topic 'Pelage characteristics'
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Journal articles on the topic "Pelage characteristics"
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Pruitt, Jr., William O., and Hubert Pepper. "«Pepper's patches» on Rangifer pelage." Rangifer 6, no. 2 (June 1, 1986): 227. http://dx.doi.org/10.7557/2.6.2.650.
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We describe and give frequencies of occurrence of a rarely-mentioned pattern of spots in Rangifer pelage. We also show that the pattern was well-known to Palaeolithic humans who recorded it in their cave art. We also discuss some of the symbolic possibilities resulting from the recognition by Palaeolithic humans of the biological characteristics of the pattern in Rangifer.
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Weil, Zachary M., Michelle Gatien Hotchkiss, and Randy J. Nelson. "Photoperiod alters pain responsiveness via changes in pelage characteristics." Canadian Journal of Zoology 86, no. 10 (October 2008): 1212–16. http://dx.doi.org/10.1139/z08-098.
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Small mammals use day length to adjust morphology and physiology to anticipate seasonal changes in environmental conditions. The canonical photoperiod-mediated annual adaptation is seasonal breeding. However, increasing evidence suggests that day-length information can induce plasticity in the nervous system, and thus provoke behavioral plasticity that can aid in winter survival. We hypothesized that low temperatures and reduced food availability in the winter would necessitate the evolution of increased pain tolerance mediated by short day lengths. Siberian hamsters ( Phodopus sungorus (Pallas, 1773)) housed in short days regressed their reproductive tracts and molted to winter pelage. Short-day hamsters also displayed elevated latencies of nociceptive responses in the hot-plate test, suggesting reduced pain responsivity. Prior to assessing potential neuronal or neuroendocrine mediators of altered pain responses, however, we investigated the possibility that changes in fur characteristics mediated photoperiod differences in pain responsivity. Removal of fur with a depilatory cream eliminated photoperiod differences in pain responsivity. Taken together, these data indicate that day length regulates thermal pain responses via changes in fur properties; also, changes in pelage properties have both thermoregulatory and thermal insulatory properties.
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Paul, Matthew J., Nicole T. George, Irving Zucker, and Matthew P. Butler. "Photoperiodic and hormonal influences on fur density and regrowth in two hamster species." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 293, no. 6 (December 2007): R2363—R2369. http://dx.doi.org/10.1152/ajpregu.00520.2007.
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Temperate and boreal mammals undergo seasonal changes in pelage that facilitate thermoregulation in winter and summer. We investigated photoperiodic influences on pelage characteristics of male Siberian and Syrian hamsters. Fur density (mg fur/cm2 skin) was measured by weighing the shavings of fur patches removed from the dorsal and ventral surfaces of hamsters maintained in long days (LDs) or transferred to short days (SDs). Patches were reshaved 3 wk later to assess fur regrowth (mg regrown fur/cm2 skin). Fur density was greater in SD than in LD Siberian hamsters after 11 wk of differential phototreatment. The onset of increased fur density in SDs was accompanied by a transient increase in fur regrowth (11–14 wk on the dorsal surface and 7–10 and 11–14 wk on the ventral surface), suggestive of a seasonal molting process. Fur density, body mass, and pelage color of Siberian hamsters returned to values characteristic of LD males after a similar duration of prolonged (>27 wk) SD treatment and appear to be regulated by a similar or common interval-timing mechanism. In Syrian hamsters, dorsal fur density, fur regrowth, and hair lengths were greater in SD than in LD males. Castration increased and testosterone (T) treatment decreased dorsal and ventral fur regrowth in LD and SD hamsters, but the effects of T manipulations on fur density were limited to a decrease in dorsal fur density after T treatment. Decreased circulating T in SDs likely contributes to the seasonal molt of male hamsters by increasing the rate of fur growth during the transition to the winter pelage.
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Chernova, O. F., and I. V. Kirillova. "Hair microstructure of the Late Quaternary bison from north-east Russia." Proceedings of the Zoological Institute RAS 317, no. 2 (June 25, 2013): 202–16. http://dx.doi.org/10.31610/trudyzin/2013.317.2.202.
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For the first time the hair microstructure of two individuals of the bison Bison priscus found at the North East of Russia (the basins of Tirekhtyakh River in Yakutia and Rauchua River in Chukotka) have been studied using SEM in comparison with the hair structure of the recent representatives of genus Bison. The high thermo-insulating and hard-wearing characteristics of pelage and of different categories of the hair – guard hairs and wooly hairs – were revealed. The hair microstructure of ancient bison is similar to those of recent bison B. bison and aurochs B. bonasus but its pelage is more differentiated and thick.
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Garbino, Guilherme S. T., Carla Cristina de Aquino, and Raone Beltrão-mendes. "Marcgrave's red-tailed monkey: the earliest European depiction of a titi monkey." Archives of Natural History 48, no. 1 (April 2021): 131–38. http://dx.doi.org/10.3366/anh.2021.0692.
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Among the approximately 40 species of mammals described in Historia naturalis Brasiliae by Willem Piso and Georg Marcgrave, the identity of the monkey “cagui major” has been one of the most controversial. Authors have identified Marcgrave's “cagui major” as a tamarin, a saki monkey, a squirrel monkey, a titi monkey and even as an Old-World monkey. Based on a watercolour, probably related to the original illustration that served as basis for the “cagui major” woodcut, we confirm that it depicts a titi monkey ( Callicebus). By comparing the pelage characteristics shown in the drawing and some measurements and pelage characteristics described in Historia naturalis Brasiliae, we confirm that the species depicted was Callicebus melanochir that occurs today in southern Bahia and northeastern Minas Gerais states, outside the range of the Dutch possessions in Brazil.
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Gigliotti, L. C., D. R. Diefenbach, and M. J. Sheriff. "Geographic variation in winter adaptations of snowshoe hares (Lepus americanus)." Canadian Journal of Zoology 95, no. 8 (August 2017): 539–45. http://dx.doi.org/10.1139/cjz-2016-0165.
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Understanding adaptations of nonhibernating northern endotherms to cope with extreme cold is important because climate-induced changes in winter temperatures and snow cover are predicted to impact these species the most. We compared winter pelage characteristics and heat production of snowshoe hares (Lepus americanus Erxleben, 1777) on the southern edge of their range, in Pennsylvania (USA), to a northern population, in the Yukon (Canada), to investigate how hares might respond to changing environmental conditions. We also investigated how hares in Pennsylvania altered movement rates and resting spot selection to cope with variable winter temperatures. Hares from Pennsylvania had shorter, less dense, and less white winter coats than their northern counterparts, suggesting lower coat insulation. Hares in the southern population had lower pelage temperatures, indicating that they produced less heat than those in the northern population. In addition, hares in Pennsylvania did not select for resting spots that offered thermal advantages, but selected locations offering visual obstruction from predators. Movement rates were associated with ambient temperature, with the smallest movements occurring at the lower and upper range of observed ambient temperatures. Our results indicate that snowshoe hares may be able to adapt to future climate conditions via changes in pelage characteristics, metabolism, and behavior.
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Blix, Arnoldus Schytte, Petter H. Kvadsheim, Marina V. Kholodova, Vladimir E. Sokolov, Edward B. Messelt, and Nicholas J. C. Tyler. "Superb winter fur insulation in the small Siberian musk deer (Moschus moschiferus)." Rangifer 35, no. 1 (October 27, 2015): 53. http://dx.doi.org/10.7557/2.35.1.3575.
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We compared the morphology and thermal characteristics of winter pelage from two Siberian musk deer Moschus moschiferus (aged 5 and 41 mo.; 5.7 and 9.5 kg) and two Eurasian reindeer Rangifer tarandus tarandus (aged >48 mo.; 73 and 79 kg). The depth of the fur over the back of musk deer was less (approximately 30 mm) than in reindeer (approximately 40 mm). Guard hairs of musk deer were longer (mean = 50.0 mm) and had greater diameter at half-length (mean = 314.4 μm) than those of reindeer (mean = 38.6mm and = 243.9 μm, respectively). The thermal characteristics (thermal conductivity and resistance) of the winter pelage of the two species were nevertheless similar (0.057 W·m-1·K-1 and 0.79 K·m2·W-1; and 0.037 W·m-1 ·K-1 and 1.00 K·m2·W-1, respectively) despite a tenfold difference in their body mass.
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Beckman, J., and A. Lill. "morphometric variation associated with teat-number differences in Antechinus agilis and A. swainsonii ? Observations from the Otway Ranges, Victoria." Australian Mammalogy 29, no. 2 (2007): 177. http://dx.doi.org/10.1071/am07022.
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That there is intraspecific variation in teat-number in Antechinus agilis (agile antechinus) and A. swainsonii (dusky antechinus) has been known for a long time. Our aim was to determine whether other key morphometric traits differed among individuals with different numbers of teats. External body dimensions and pelage characteristics were measured on live individuals and compared. Within-species variation in some external body dimensions (tail, pes, and snout-vent length) coincided with teat-number differentiation in both antechinus species in the Otway Ranges, Victoria. Disparities in pelage colour and markings were apparent between A. agilis 6- and 10-teat phenotypes, but were not obvious among A. swainsonii teat phenotypes. Although small sample sizes obviated statistical analysis, we tentatively concluded that female A. agilis with 7, 8, or 9 teats in the Otway Ranges probably displayed morphometric and pelage characteristics intermediate between those of 6- and 10-teat individuals. A comparison of morphometric traits among 6-teat A. agilis from different geographic areas (Otways, Portland and Wilsons Promontory) also revealed some variation. This result was consistent with an expectation of clinal variation in external morphology among antechinus. Overall, this study indicates that localized disparities that are associated with teat-number, as well as clinal differences occurring over large geographic distances, contribute to intraspecific variation in external morphology in antechinus.
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Morel, M. C. G. Davies, S. D. McBride, R. S. Chiam, A. McKay, and E. Ely. "Seasonal variations in physiological and behavioural parameters in a bachelor group of stallion ponies (Equus caballus)." Animal Science 82, no. 5 (October 2006): 581–90. http://dx.doi.org/10.1079/asc200669.
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AbstractAnimals living in temperate climates are continually adapting to seasonal demands of reproduction and survival. Whilst it is well documented that ruminants show seasonal changes in both reproductive and non-reproductive physiological and behavioural characteristics (reduction of metabolic rate and appetite during the winter with respective increases during spring and summer), this information has not been fully established in the non-ruminating ungulate species of Equidae. This may be important information from a practical management perspective since groups of equids are increasingly being kept in natural conditions for the purposes of conservation grazing.The aim of this study, therefore, was to document the behavioural and physiological adaptive changes made by ponies during a 12-month period and to relate these to changes in forage availability and environment. Five mature pony stallions were kept in west Wales (4°5′W, 52°25′N) and monitored for 12 months. A range of physiological (testis size, body weight, condition score (CS), hoof growth, moult (M), pelage fibre length, depth and density) and behavioural measurements (foraging and non-foraging activities) were recorded along with monthly forage analysis (crude protein (CP), water-soluble carbohydrates (WSC)), dry matter (DM)) and environmental conditions (day length and minimum ambient temperature). All physiological measurements were significantly (P<0·001 to P<0·05, r2=0·16 to 0·69) related to day length and all except testis size, body weight and M were significantly related to minimum temperature, CS (P<0·001; r2=0·583), hoof growth (P<0·001; r2=0·457), pelage fibre length (P<0·001; r2=0·61), pelage fibre depth (P<0·001; r2=0·489) and pelage density (P<0·05; r2=0·192). Fewer significant relationships were observed in relation to forage characteristics; significances only obtained between CP and CS (P<0·001; r2=0·854), fibre length (P<0·01; r2=0·625) and pelage fibre depth (P<0·01; r2=0·624); between DM and CS (P<0·05; r2=0·352) and pelage fibre depth (P<0·05; r2=0·343); between WSC and pelage fibre depth (P<0·01; r2=0·55) and pelage fibre depth (P<0·05; r2=0·34). Behaviour results showed a significant relationship between time spent alert and day-length (P<0·05; r2=0·35) and between minimum ambient temperature and time spent eating (P<0·05; r2=0·37), locomotory behaviour (P<0·01; r2=0·53) and passive interaction (P=0·001; r2=0·63). A significant relationship was also reported between eating and CP (P<0·01; r2=0·53) as well as DM (P=0·01; r2=0·43). The ponies in this study demonstrated a series of adaptive changes during winter concomitant with energy conservation, however, forage availability and intake also decreased indicating lower energy input. Despite energy conserving adaptations it is unlikely that nutrient intake was adequate to account for the limited winter decline in CS and weight. In conclusion, it was considered that: (a) ponies demonstrated physiological and behavioural adaptation in response to environmental demands, (b) during winter ponies demonstrated behaviours indicative of a cost benefit analysis of expending energy in the pursuit of poor quality forage, (c) despite energy conserving adaptations, intake is unlikely to have been adequate to maintain the CS observed, and (d) reduction in metabolic rate and increased food conversion efficiency may be additional adaptations made during times of environmental challenge.
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SALINAS, MARÍA L. SANDOVAL, JOSÉ D. SANDOVAL, and ELISA M. COLOMBO. "Objective measurement of Akodon budini dorsal coloration: methodological concerns." Anais da Academia Brasileira de Ciências 88, suppl 1 (April 29, 2016): 489–502. http://dx.doi.org/10.1590/0001-3765201620150004.
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ABSTRACT The role of color in taxonomic and systematic studies of several taxa is central. Color data are more valuable if they permit comparisons. We aimed to provide pelage objective color measurements of a series of Akodon budini and to use those color data to test and to quantitatively analyze the influence of both the lighting source and the measuring point, in the determination of pelage color of museum skins. We used a spectroradiometer to measure the pelage color at five points over the dorsal midline of 54 Akodon budini museum skins. PCAs and ANOVAs were conducted over the color data. The characteristics of the studied series also allowed us to include and assess the potential effects of some main sources of intra-specific variation. Determinations of fur color strongly depend on the lighting source, and therefore it is essential that lighting conditions are controlled during color measurements and then made explicit when communicating the color characterization of particular taxonomic units. Furthermore, color determinations strongly depend on the measuring point, even on the same body area, and therefore it is critical that the color characterization of a taxon includes the variation between different points of the different body parts of the studied specimens.
Dissertations / Theses on the topic "Pelage characteristics"
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Kamm, Ava Adler. "Reproduction and pelage characteristics related to scent marking behavior in the eastern mole (Scalopus aquaticus machrinus) /." Available to subscribers only, 2006. http://proquest.umi.com/pqdweb?did=1136089541&sid=17&Fmt=2&clientId=1509&RQT=309&VName=PQD.
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Hines, Justin, and justin hines@opwall com. "Ecology and Taxonomy of Ateles geoffroyi in Parque Nacional Pico Bonito, Atlántida, Honduras." The Australian National University. Faculty of Arts, 2005. http://thesis.anu.edu.au./public/adt-ANU20060530.114859.
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The first study on Ateles geoffroyi in Honduras, this research focused on the population of spider monkeys in Parque Nacional Pico Bonito, Atlántida, Honduras. Subgroup size of spider monkeys in Parque Nacional Pico Bonito ranged from 1-23 (n=55) individuals, with a mean subgroup size of 6.93 ± 4.53 individuals, which was larger than nearly all subgroup sizes reported in Central and South America. Mean subgroup composition consisted of 1.65 ± 1.16 adult males, 2.67 ± 1.69 adult females and 1.75 ± 1.92 juveniles. Sex ratio of adult males to adult females was 1:1.62, which was consistent with most Central and South American Ateles studies in the literature.¶
Of a possible 23 identified food tree species from 15 families, and 7 unidentified tree and vine species, spider monkeys were confirmed to consume fruits, leaves and/or seeds from 8 identified tree species, 1 unidentified tree species, and 1 unidentified vine species. Several of the confirmed genera consumed by Ateles in Parque Nacional Pico Bonito were consistent with other studies conducted in Central and South America, including Dialium, Ficus, and Coccoloba.¶
Combining pelage analysis and discriminant analysis of cranial and dental measurements from 140 skins and 253 adult crania, the taxonomy of the Central American Ateles geoffroyi was revised to recognize the taxa Ateles geoffroyi yucatanensis, A. g. vellerosus, A. g. pan, A. g. geoffroyi, A. g. frontatus, A. g. ornatus, and A. g. grisescens, with the recognition of a potential new taxon from northern Honduras, resulting in a revised distribution of Ateles geoffroyi, based on the pelage and cranial analyses.
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Herrington, Twyla. "Socioeconomic Characteristics of Coastal Pelagic Fishing Tournaments in South Florida." NSUWorks, 2011. http://nsuworks.nova.edu/occ_stuetd/203.
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Highly migratory species (HMS) are targeted in numerous recreational fishing tournaments in the Florida Straits and very important to the total directed fisheries for these species. Sailfish Istiophorus platypterus and wahoo Acanthocybium solandri are primary coastal pelagic fish species, found in similar shelf-edge habitats, targeted in these recreational tournaments. The economic importance of these tournaments is unknown, as is the probable overlap between tournament fisheries by anglers targeting this species.
A voluntary mail survey was administered to two sailfish tournaments and one wahoo tournament within the Florida Straits during the 2009/2010 season. Questions were organized into four sections: general fishing activity and experience, tournament experience, fishing techniques, and personal angler characteristics. Response rates for the participating tournament were as follows: Stuart Sailfish Club Light Tackle Sailfish Tournament (SSCLT), 23.3%, Silver Sailfish Derby (SSD) 44.2%, and Bahamas Wahoo Championship (BWC) 33.0%. All participating tournaments represented an overwhelmingly male population (SSCLT 92.9%; SSD 94.7%, BWC 100%), the majority of which were residents of Florida. Sailfish was listed as the preferred target species for the participating sailfish tournament anglers with wahoo being listed as the preferred target species for wahoo tournament participants. All anglers in both sailfish tournaments responded yes to participation in the upcoming year’s tournament with only 50% of wahoo participants answering yes to this question for next year’s participation.
Average tournament expenditures and economic contributions were part of the results from this study. All tournaments showed highest expenditures under gas and oil for boats. The SSCLT tournaments average for oil and gas totaled $2,785.00 for the tournament, the highest of the three tournaments surveyed. Lodging was shown to be the least important of all categories with averages ranging between $325-$700 per tournament. The direct economic contribution from each tournament as whole to the local economy were as follows: SSD- $425,109; SSCLT- $866,189; Wahoo-$71,550. These numbers correspond to the total tournament participation numbers with the highest contribution and participation being the SSCLT tournament. Understanding angler preferences and expenditure patterns will help tournament directors and local fisheries management agencies better understand the economic importance and management implications in South Florida.
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GLANS, GUSTAV, and JESPER ROSENBERG. "Improving Measurement of SectorConcentration Risk in Credit Portfolios : Evaluation of sector classification and approaches to concentration measure characteristics." Thesis, KTH, Entreprenörskap och Innovation, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-189498.
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På en teknisk nivå utgör beräkningen av sektorkoncentrationsrisk ett särskilt utmanande problem. I befintlig teori är riktlinjer till såväl hur industrisektorer ska indelas som risknivån beräknas begränsade. Syftet med studien är att utvärdera och analysera olika tillvägagångssätt till sektorkoncentrationsrisk i kreditportföljer. Detta har utförts i två separata delar där både indelningen i sektorer och riskberäkningen behandlats. Sektorindelningen har utvärderats genom att jämföra korrelationsstrukturen mellan två speciellt intressanta indelningsmetodiker; enligt Morgan Stanely Capital Investment (MSCI) och den av Finansinspektionen föreslagna sektorindelningen (SFSA). Riskberäkningen har utvärderats genom att applicera en rad olika koncentrationsmått på portföljer av varierande koncentrationsgrad. Resultaten visar att en minimering av inter-sektoriella korrelationer samt en maximering av intra-sektoriella korrelation är av stor vikt då sektorer indelas. Med andra ord, för att koncentrationen ska generera en faktisk risk krävs det att sektorerna är tydligt särskilda samt internt homogena. Utöver detta ska individuella exponeringar tydligt kunna placeras inom en sektor och de behandlade sektorerna ska inte vara av diversifierad natur. Resultaten tyder vidare på att MSCI presterar bättre för att hantera sektorkoncentrationsrisk på alla dessa punkter. När det kommer till riskberäkningen, visar resultaten att förutom ördelningen av exponeringar är även sektorspecifika kreditkvaliteter samt korrelationsstrukturer av vikt för att bestämma risknivån. Risken från koncentration är större om risknivån är hög eller om exponeringen är mot korrelerade sektorer. Men framförallt tyder resultaten på att en uniformt fördelat portfölj inte är att se som okoncentrerad. För att ta hänsyn till naturliga koncentrationer är det därför av yttersta vikt att koncentration istället ses i förhållande till den aggregerade kreditmarknaden.On a technical level, the measurement of sector concentration risk poses a particularlychallenging problem. Existing literature lacks direct suggestions both regarding how sectors are to be divided and the risk-level measured. The purpose of the study is to evaluate and analyse different measures of - and approaches to sector concentration risk in credit portfolios. This has been addressed both by analysing sectorial division and which aspects that are of interest for determining the concentration imposed risk- level. The sectorial division has been addressed by comparing the correlation structures of two especially interesting sector classification methods; the standardised Morgan Stanley Capital Investment industry classification (MSCI) and the proposed sector classification of the Swedish Financial Supervisory Authority (SFSA). The sector concentration risk measurement has been analysed through employing different risk-measures on portfolios with varying concentration levels. The results show that in order to capture the risk-level from concentration, the main approach for sectorial division should seek to minimise inter-sector correlations and maximise intra-sector correlations. I.e. sectors should be distinct from each other and internally homogeneous. Moreover, an unambiguous sorting of individual exposures towards one sector should be possible and the considered sectors should not be of a diversified nature. It is also found that MSCI outperforms SFSA for assessing sector concentration risk on all fronts. When it comes to the risk measure, it is found that apart from exposure distribution; credit qualities and correlation structures are of great interest. The risk induced from a concentrated exposure is greater if credit qualities are low or if the exposure is high towards highly correlated sectors. But above all, the results imply that a uniform distribution is not to be seen as unconcentrated. In order for concentration measurement to incorporate natural concentrations it is thereby greatly important that concentration instead is considered as relative towards the aggregate credit market.
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Maia, Evanira Rodrigues. "DistribuiÃÃo espacial e perfil epidemiolÃgico das pessoas com deficiÃncia em Ãreas cobertas pela estratÃgia saÃde da famÃlia." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=7509.
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nÃo hÃOs aspectos espaciais e epidemiolÃgicos envolvidos na deficiÃncia ainda nÃo foram abordados de modo expressivo nas pesquisas demogrÃficas e de saÃde no Brasil. Realizar estudos sobre a prevalÃncia das problemÃticas inerentes à real situaÃÃo dessas pessoas à imprescindÃvel por possibilitar conhecer seu perfil de saÃde e condiÃÃes de vida. Teve-se como objetivo geral analisar a distribuiÃÃo espacial das pessoas com deficiÃncia no municÃpio do Crato-CE e, especificamente, identificar as pessoas com pessoas com deficiÃncia, descrever o perfil epidemiolÃgico das pessoas com deficiÃncia e distribuir espacialmente essas pessoas para descriÃÃo dos eventos e localizaÃÃo de Ãreas de sobre-risco. Estudo do tipo transversal com abordagem quantitativa, elaborado de janeiro de 2010 a outubro de 2011. Na primeira fase promoveu-se capacitaÃÃo prÃvia dos ACS mediante aplicaÃÃo do plano de capacitaÃÃo para desenvolvimento de competÃncias relativas à assistÃncia à pessoa com deficiÃncia, passo metodolÃgico de suporte à coleta de dados. Neste momento utilizaram-se instrumentos para a avaliaÃÃo de competÃncias do ACS. Na segunda fase os ACS identificaram as pessoas com deficiÃncia visual, auditiva e fÃsica residentes em suas Ãreas de abrangÃncia utilizando ficha de cadastro. Na terceira fase os domicÃlios das pessoas com deficiÃncia foram georreferenciados. Na quarta os dados nÃo grÃficos foram submetidos à anÃlise estatÃstica atravÃs do programa SPSS versÃo 18. Foram realizados teste Qui-Quadrado e Qui-Quadrado para dados emparelhados nos dados relativos ao perfil do ACS e desenvolvimento de competÃncias. Descreveu-se o perfil das pessoas com deficiÃncia e calculou-se a razÃo de prevalÃncia das variÃveis socioeconÃmicas. Os dados grÃficos foram analisados mediante o software Arcgis versÃo 9.2., empregando-se estimador de intensidade de Kernel. Desse modo, buscou-se verificar a intensidade dos eventos nas Ãreas adstritas a fim de identificar Ãreas de sobre-risco. No decorrer da pesquisa considerou-se a ResoluÃÃo 196/96 inerente à pesquisa envolvendo seres humanos. Nos resultados identificou-se o perfil das PcD como homens em idade produtiva, que moram em zona rural, tÃm baixa instruÃÃo e renda familiar, procedentes do municÃpio de Crato. Na distribuiÃÃo espacial evidenciou-se maior prevalÃncia em zona rural, com maior nÃmero de residentes nos distritos de Dom Quintino, Bela Vista, Campo Alegre, Ponta da Serra e Ãreas urbanas de menor indicador socioeconÃmico. A cobertura dos serviÃos de saÃde à satisfatÃria em relaÃÃo à ESF, mas os serviÃos de reabilitaÃÃo, apoio diagnÃstico, marcaÃÃo de exames e consultas especializadas e os serviÃos ambulatoriais e hospitalares estÃo concentrados na zona urbana. Desse modo, como se supunha, as caracterÃsticas daqueles com deficiÃncia resultam em um perfil que dificulta o acesso e a acessibilidade aos serviÃos de saÃde de reabilitaÃÃo, especialidades mÃdicas e de Ãmbito hospitalar. Ademais, o perfil à sugestivo de pessoas com exacerbada dependÃncia dos serviÃos pÃblicos, portanto, à preciso se criar estratÃgias de mobilidade para promover o acesso aos serviÃos de saÃde. E, ainda: os ACS sÃo sensÃveis a este pleito, mas carecem de medidas adequadas para prover cuidados de promoÃÃo de saÃde na perspectiva do seu papel de mediador.
The spatial and epidemiological aspects involved in disability have not been meaningfully addressed yet in demographic and health research in Brazil. Research on the prevalence of the problems inherent in these peopleâs actual situation is fundamental because this permits knowledge on their health profile and living conditions. The general aim was to analyze the spatial distribution of disabled people in Crato-CE, while the specific aim was to identify disabled people, describe their epidemiological profile and the spatial distribution of these people to describe the events and location of excess risk areas. Cross-sectional study with a quantitative approach, elaborated between January 2010 and October 2011. In the first phase, Community Health Agents (CHA) received previous training through the application of the training plan for competency development in care delivery for disabled people, a methodological phase to support data collection. At that moment, instruments were used to assess the CHAsâ competences. In the second phase, the CHAs identified people with visual, hearing and physical impairments living in their coverage area through the registration forms. In the third phase, the disabled peopleâs homes were georeferenced. In the fourth phase, non-geographical data were submitted to statistical analysis in SPSS version 18. Chi-squared and chi-squared tests for paired data were applied to data on the CHAsâ profile and competency development. The profile of disabled people was described and the prevalence rates of socioeconomic variables were calculated. Graphical data were analyzed in Arcgis version 9.2., using Kernelâs intensity estimator. Thus, the goal was to verify the intensity of events in the areas concerned in order to identify excess risk areas. The research complied with Resolution 196/96, concerning research involving human beings. In the results, the disabled peopleâs profile was identified as men of productive age, living in rural areas, with low education and family income levels, coming from the city of Crato. In the spatial distribution, higher prevalence levels were evidenced in rural areas, with a larger number of residents in the Dom Quintino, Bela Vista, Campo Alegre, Ponta da Serra districts, as well as in urban areas with lower socioeconomic indicators. Health service coverage is satisfactory concerning the FHS, but rehabilitation, diagnostic support, test and specialized appointment scheduling and outpatient and hospital services are concentrated in the urban area. Thus, as supposed, the characteristics of the disabled people result in a profile that hampers the access to and accessibility of rehabilitation services, medical specialties and hospital services. Moreover, the profile suggests people with increased dependence on public services. Therefore, mobility strategies need to be created to enhance health service access. And, also: the CHAs are sensitive to this plea, but lack adequate measures to deliver health promotion care within the perspective of their mediating role.
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Jaremtchuk, Ana Regina [UNESP]. "Produção, composição bromatológica e extração de potássio pela planta de milho para silagem colhida em duas alturas de corte." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/95294.
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Universidade Estadual Paulista (UNESP)
O presente experimento teve como objetivo avaliar as características agronômicas, composição químico-bromatológica e extração de potássio de cinco genótipos de milho para silagem. O delineamento foi realizado em parcelas subdivididas no delineamento em blocos ao acaso, com 3 híbridos (DKB 390, AGX 8517, A-2560) e 2 variedades (AL-Bianco, Piratininga), em 2 alturas de corte (20 e 40 cm acima do solo) e 4 repetições. Após a colheita foram realizadas as determinações de parâmetros bromatológicos e potássio (K), bem como simulação para estimativa de produção de leite/ha (EPL) e da ingestão de MS (EIMS). Houve aumento no teor de MS com a elevação da altura de corte (P<0,05), sendo observados valores de 31,7 e 33,9%, para 20 cm e 40 cm respectivamente. A produção de MS/ha para os genótipos cortados a 20 cm variou entre 10,24 e 12,08 t e para 40 cm entre 8,92 e 10,51 t. A elevação na altura de corte reduziu em média 19,1% a extração de potássio. O aumento na altura de corte levou à redução na EPL/ha e ao aumento na EIMS. Os genótipos de milho estudados devem ser cortados a 20 cm de altura do solo por proporcionar maior produtividade animal por área em relação aos genótipos cortados a 40 cm do solo.
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Soso, Francis André. "Fatores que caracterizam a adoção do Business Process Management (BPM) pelas organizações." Universidade do Vale do Rio dos Sinos, 2016. http://www.repositorio.jesuita.org.br/handle/UNISINOS/5592.
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A adoção do Business Process Management (BPM) é um tema de interesse das organizações e também das pesquisas nas áreas de Gestão e Tecnologia da Informação (TI) pelo seu potencial de melhorar o desempenho organizacional. Entretanto, os fatores que caracterizam sua adoção não estão esclarecidos na literatura, pois as pesquisas existentes apresentam limitações relacionadas a contexto, público participante, abrangência de conceitos e setor de mercado onde foram realizadas. Portanto o objetivo desta pesquisa foi analisar quais fatores caracterizam a adoção do BPM pelas organizações. Para isso identificou-se na literatura os fatores que caracterizam essa adoção e os fatores críticos de sucesso (FCS) relacionando-os com dez princípios propostos por Brocke et al. (2014a). A partir daí desenvolveu e validou-se um instrumento para medir a implantação e uso dos conceitos de BPM nas organizações. Por fim analisou-se as práticas organizacionais associadas a essa adoção. O método utilizado para atingir esses objetivos foi o de uma pesquisa do tipo survey aplicada em um público de profissionais ligados ao tema da pesquisa no período de 28/08/2015 a 16/11/2015. A amostra alcançou 352 respondentes e a coleta de dados deu-se por questionário distribuído via internet. Para análise dos dados utilizou-se como técnica a análise exploratória e a modelagem de equações estruturais (MEE) e como método a análise fatorial confirmatória (AFC). Após ajustes realizados no modelo o resultado da análise indicou a validade e confiabilidade do instrumento de pesquisa. Por fim, demonstra-se a contribuição dessa pesquisa ao indicar os dez fatores que caracterizam a adoção do BPM pelas organizações. São eles: características internas, modelagem de processos, sinergia entre áreas, clareza no nível estratégico, comprometimento, papéis e responsabilidades, cadeia de valor, priorização de processos, cultura de processos e implementação.
The adoption of Business Process Management (BPM) is an issue of interest organizations and also of research in Management and Information Technology (IT) for its potential to improve organizational performance. However, the factors which characterize its adoption are not clear in the literature because the existing research present limitations related to the context, participating public, scope of concepts and market sector where they were performed. Therefore the aim of this study was to analyze which factors characterize the adoption of BPM in organizations. For this purpose was identified in the literature the factors that characterize this adoption and the critical success factors (CSF) relating them with ten principles proposed by Brocke et al. (2014a). From then it developed and validated an instrument to measure the implementation and use of BPM concepts in organizations. Finally we analyzed the organizational practices associated with this adoption. The method used to achieve these goals was the survey type applied in a professional public related to the subject of research in the period from 08/28/2015 to 11/16/2015. The sample reached 352 respondents and data collection occurred by questionnaire distributed over the Internet. For data analysis was used as a technical exploratory analysis and structural equation modeling (SEM) and as a method confirmatory factor analysis (CFA). After adjustments to the model analysis results indicated the validity and reliability of research instrument. Finally, bring forward the contribution of this research to indicate the ten factors that characterize the adoption of BPM by organizations. These are: internal characteristics, process modeling, synergy between departments, clearly at the strategic level, commitment, roles and responsibilities, value chain, prioritization process, process culture and implementation.
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Jaremtchuk, Ana Regina 1976. "Produção, composição bromatológica e extração de potássio pela planta de milho para silagem colhida em duas alturas de corte /." Botucatu : [s.n.], 2006. http://hdl.handle.net/11449/95294.
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Orientador: Ciniro CostaBanca: Silvio José Bicudo
Banca: Armando de Andrade Rodrigues
Abstract: The aim of this work was to evaluate the agronomical, chemical composition and removal of potassium of five different genotypes of corn grown for silage. A split-plot complete randomized block design was used, with three hybrids (DKB 390, AGX 8517, A-2560) and two varieties (AL-Bianco, Piratininga), using two cut heights (20 and 40 cm above soil level) and four replicates per treatment. After harvest, plants were analyzed for chemical characteristics and potassium (K). Milk production and DM intake were predicted for each treatment. There was an increase in DM content with the increase in cut height (P<0.05): 31.7 e 33.9%, for 20 and 40 cm, respectively. Depending on genotype, estimates of DM yield (ton/ha) ranged from 10.24 to 12.08 for plants cut at 20 cm and from 8.92 to 10.51 for plants cut at 40 cm. On average, there was a decrease (19.1%) in potassium removal by the crop as a result of increased cut height. Increased cut height also led to a decrease in predicted milk production and an increase in predicted DMI. These results suggest that the corn genotypes under study should be harvested at the lower cut height to promote increased animal productivity per ha.
Resumo: O presente experimento teve como objetivo avaliar as características agronômicas, composição químico-bromatológica e extração de potássio de cinco genótipos de milho para silagem. O delineamento foi realizado em parcelas subdivididas no delineamento em blocos ao acaso, com 3 híbridos (DKB 390, AGX 8517, A-2560) e 2 variedades (AL-Bianco, Piratininga), em 2 alturas de corte (20 e 40 cm acima do solo) e 4 repetições. Após a colheita foram realizadas as determinações de parâmetros bromatológicos e potássio (K), bem como simulação para estimativa de produção de leite/ha (EPL) e da ingestão de MS (EIMS). Houve aumento no teor de MS com a elevação da altura de corte (P<0,05), sendo observados valores de 31,7 e 33,9%, para 20 cm e 40 cm respectivamente. A produção de MS/ha para os genótipos cortados a 20 cm variou entre 10,24 e 12,08 t e para 40 cm entre 8,92 e 10,51 t. A elevação na altura de corte reduziu em média 19,1% a extração de potássio. O aumento na altura de corte levou à redução na EPL/ha e ao aumento na EIMS. Os genótipos de milho estudados devem ser cortados a 20 cm de altura do solo por proporcionar maior produtividade animal por área em relação aos genótipos cortados a 40 cm do solo.
Mestre
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Campos, Deivison Moacir Cezar de. "Do disco à roda: a construção do pertencimento afrobrasileiro pela experiência na festa Negra Noite." Universidade do Vale do Rio dos Sinos, 2014. http://www.repositorio.jesuita.org.br/handle/UNISINOS/4651.
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Este trabalho investiga a construção do pertencimento afro pela experiência em festas de Black music. Defende-se a tese que as interações sociais da comunidade negra, realizadas em torno do consumo coletivo de música, que se organizavam tradicionalmente pela estrutura de rodas sagradas ou profanas, foram afetadas pelo midiático. Essa afetação fez com que os elementos constitutivos do pertencimento, desterritorializados pelos movimentos de diásporas e antes compartilhados somente pela interação pessoal nas rodas, sejam difundidos também pelas mídias sonoras. Com isso, o consumo coletivo de músicas gravadas possibilita novas formas de interação, a experiência comunicacional. A partir da articulação dos conceitos de experiência e apropriação, relacionando-os com elementos da cultura viajante do Atlântico Negro e tendo a roda, presente em diferentes manifestações culturais africanas e da diáspora, como elemento síntese, propõe-se um circuito teórico-metodológico que apreende as dinâmicas espaciais, culturais e midiáticas envolvidas no processo. A construção de uma ambiência afro-midiática, pela relação dos corpos em performance, com a música gravada e os equipamentos de som e iluminação, possibilita que diferentes territorialidades e temporalidade concorram, levando, mediado pela memória coletiva, à presentificação do afro. A festa Negra Noite foi o lugar de observação, através uma pesquisa de inspiração etnográfica. A música gravada insere a festa no circuito de consumo cultural de Black music, enquanto a mediação pela memória coletiva liga a festa à tradição recente dos bailes Black Porto e à tradição de longa duração do Atlântico Negro.
The present paper investigates the structure of the Afro identity through the experience in Black music parties. The thesis supports that the social interactions of the black community, held around collective consumption of music, which were traditionally arranged by the structure of sacred or profane circles have been affected by the media. Such fuss caused the constituent elements of identity, deterritorialized by the movements of diasporas and previously shared only by personal interaction in the circles to be spread by the sound media as well. Thus, the collective consumption of music recorded enables new forms of interaction, the communication experience. From the articulation of experience and ownership concepts, relating them to the elements of traveller culture of the Black Atlantic and being the circle, present in different African and diaspora cultural events, such as synthesis elements, a theoretical and methodological study is proposed, which seizes the spatial, cultural and media dynamics involved in the process. The structure of an African-media ambiance, through the relation of the bodies in performance, with the recorded music and sound and lighting equipment enables different territoriality and temporality to compete, taking, mediated by the collective memory, to the presentification of the Afro. The party Negra Noite was the place of observation, through an ethnographic research. The music recorded enters the party in the circuit of cultural consumption of black music, while the mediation of the collective memory connects the party to the recent tradition of Black Porto dances and to the long lasting tradition of the Black Atlantic.
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Resende, Miguel Silva. "Principais determinantes das divulgações exigidas pela IFRS 7 : o caso das empresas cotadas em Portugal." Master's thesis, Instituto Superior de Economia e Gestão, 2014. http://hdl.handle.net/10400.5/7943.
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Mestrado em Contabilidade, Fiscalidade e Finanças EmpresariaisA IFRS 7 exige que as entidades divulguem nos seus relatórios financeiros informações sobre os instrumentos financeiros uteis para os diversos usuários da informação contabilística. Este estudo teve por base a análise dos principais determinantes no cumprimento com as divulgações exigidas pela IFRS 7, pelas empresas cotadas em Portugal. Foram analisadas 35 empresas cotadas na Euronext Lisboa, entre 2010 e 2012, sendo recolhidos os dados a partir dos Relatórios e Contas das mesmas tendo como base a informação constante das demonstrações financeiras. Os resultados sugerem que os principais determinantes no cumprimento com as divulgações exigidas pela IFRS 7, pelas empresas cotadas em Portugal são, a dimensão, as diferenças temporárias entre a contabilidade e a fiscalidade (impostos diferidos) e o uso de instrumentos financeiros passivos. Existindo uma correlação positiva para a dimensão e uma correlação negativa para os restantes determinantes.
The present study was based on main components in compliance with the disclosures required by IFRS 7, by listed companies in Portugal. Thirty five companies listed on Euronext Lisbon were used for a period of analysis between 2010 and 2012, based on the financial reports issued by them. The results suggested that the main components in compliance with the disclosures required by IFRS 7, by listed companies in Portugal is the size, timing differences between accounting and taxation (deferred taxes) and the use of financial liabilities. Furthermore, there is a positive correlation associated to dimension and a negative correlation for the remaining components.
Books on the topic "Pelage characteristics"
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Licandro, Priscilla, Claude Carré, and Dhugal J. Lindsay. Cnidaria: Colonial Hydrozoa (Siphonophorae). Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199233267.003.0019.
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This chapter describes the taxonomy of colonial Hydrozoa. Siphonophores are pelagic organisms that can be found the whole year round, sometimes in a characteristic season, inshore and offshore at all latitudes and depths. As in all hydrozoans, they carry tentacles equipped with stinging cells (nematocysts), which are used by the colony to immobilize and kill their prey. The chapter covers their life cycle, ecology, and general morphology. It includes a section that indicates the systematic placement of the taxon described within the tree of life, and lists the key marine representative illustrated in the chapter (usually to genus or family level). This section also provides information on the taxonomic authorities responsible for the classification adopted, recent changes which might have occurred, and lists relevant taxonomic sources.
Book chapters on the topic "Pelage characteristics"
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Ohki, K., J. P. Zehr, and Y. Fujita. "Trichodesmium: Establishment of Culture and Characteristics of N2-Fixation." In Marine Pelagic Cyanobacteria: Trichodesmium and other Diazotrophs, 307–18. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-015-7977-3_20.
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Bölter, M., B. von Bodungen, G. Liebezeit, and M. Meyer. "The Pelagic Ecosystem of the Bransfield Strait, Antarctica: An Analysis of Microbiological, Planktological and Chemical Characteristics by Multivariate Analyses." In Antarctic Ocean and Resources Variability, 160–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-73724-4_13.
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Svidenko, Lyudmyla. "Characteristic of Leaf Peltate Glandular Trichomes and Their Variability of Some Lamiaceae Martinov Family Species." In Agrobiodiversity for Improving Nutrition, Health and Life Quality, 124–32. Slovak University of Agriculture in Nitra, Slovakia, 2018. http://dx.doi.org/10.15414/agrobiodiversity.2018.2585-8246.124-132.
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Riebesell, Ulf, and Philippe D. Tortell. "Effects of Ocean Acidification on Pelagic Organisms and Ecosystems." In Ocean Acidification. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199591091.003.0011.
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Over the past decade there has been rapidly growing interest in the potential effects of ocean acidification and perturbations of the carbonate system on marine organisms. While early studies focused on a handful of phytoplankton and calcifying invertebrates, an increasing number of investigators have begun to examine the sensitivity to ocean acidification of various planktonic and benthic organisms across the marine food web. Several excellent review articles have recently summarized the rapidly expanding literature on this topic (Fabry et al. 2008; Doney et al. 2009 ; Joint et al. 2011). The focus of this chapter is on the potential ecosystem-level effects of ocean acidification. Starting with a brief review of the basic physical, chemical, and biological processes which structure pelagic marine ecosystems, the chapter explores how organismal responses to perturbations of the carbonate system could scale up in both time and space to affect ecosystem functions and biogeochemical processes. As with many chapters in this volume, and indeed much of the ocean acidification literature at present, our review raises more questions than it answers. It is hoped that these questions will prove useful for articulating and addressing key areas of future research. Complexity in marine pelagic food webs results from the interactions of multiple trophic levels across a range of temporal and spatial scales. The traditional view of marine food webs (Steele 1974) involved a relatively short trophic system in which large phytoplankton (e.g. net plankton such as diatoms) were grazed by a variety of mesozooplankton (e.g. copepods), which were in turn consumed by second-level predators, including many economically important fish and invertebrate species. This ‘classic’ marine food web is typical of high-productivity regions such as coastal upwelling regimes (Lassiter et al. 2006). A characteristic feature of these systems is a strong decoupling between primary production and grazing, which results from the different metabolic rates of consumers and producers and, in many cases, ontogenetic and seasonal delays in the emergence of feeding predators. The uncoupling between phytoplankton and their consumers leads to significant export of organic material out of the euphotic zone, the so-called biological carbon pump (discussed further below).
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R. Majithiya, Vaishali, and Sangeeta D. Gohel. "Actinobacteria Associated with Marine Invertebrates: Diversity and Biological Significance." In Actinobacteria - Diversity, Applications and Medical Aspects [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.106642.
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The ocean harbors a wide diversity of beneficial fauna offering an enormous resource for novel compounds, and it is classified as the largest remaining reservoir of natural molecules to be evaluated for biological activity. The metabolites obtained from marine invertebrate-associated actinobacteria have different characteristics compared to terrestrial actinobacteria as marine environments are exigent and competitive. Actinobacteria produce a wide range of secondary metabolites, such as enzymes, antibiotics, antioxidative, and cytotoxic compounds. These allelochemicals not only protect the host from other surrounding pelagic microorganisms but also ensure their association with the host. The harnessing of such metabolites from marine actinobacteria assures biotechnological, agricultural, and pharmaceutical applications.
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Dawidowicz, Piotr, and Joanna Pijanowska. "Diel Vertical Migration of Aquatic Crustaceans—Adaptive Role, Underlying Mechanisms, and Ecosystem Consequences." In Life Histories, 232–57. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190620271.003.0009.
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The phenomenon of diel vertical migration (DVM) of planktonic crustaceans, recognized by biologists for at least 2 centuries, is a special case of habitat selection behavior by pelagic animals, with their depth preference changing over a diel cycle in a way that prevents encounters with visually oriented predators (mostly fish). Migrating populations usually move toward cold, dark deep-water strata deprived of algal food when there is sufficient ambient light and move back to food-rich and warm surface waters after dusk. DVM has been recognized in pelagic representatives of all aquatic phyla of the animal kingdom and is considered the most massive diel biomass displacement on Earth. DVM can be observed in nearly all lentic freshwater and marine environments. As zooplankton occupy the central position in pelagic food webs, their massive migrations dramatically affect ecological functioning of offshore biota, particularly the efficiency of primary production utilization, energy flow, and biogeochemical pathways of essential nutrients such as carbon fluxes. The phenomenon of DVM is perhaps the most suitable for quantitative description and the major environmental factors underlying the fitness consequences of DVM, including vertical gradients of light intensity (predation risk), temperature related metabolic rates, food concentration (growth and fecundity), and others, are easy to monitor track in the field and to manipulate in laboratory systems. DVM, as inducible behavior, can be experimentally manipulated, both in the field and in the laboratory, which, in turn, makes it possible to design experiments convenient for testing specific hypotheses on various proximate and ultimate factors underlying this behavior. These characteristics make DVM suitable for investigating the evolution of animal behavior, its adaptive value, and ecosystem consequences. In the fondest memory of our friend Konrad Ciechomski with whom we made, years ago, our first steps into the world of plankton migrations.
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"Catch and Release in Marine Recreational Fisheries." In Catch and Release in Marine Recreational Fisheries, edited by Brett Falterman and John E. Graves. American Fisheries Society, 2002. http://dx.doi.org/10.47886/9781888569308.ch9.
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<em>Abstract.</em>—The fishing characteristics of circle hooks and straight shank or “J” hooks were investigated in the pelagic longline fishery during two successive trips. In one trip, circle hooks and J-hooks of comparable size were alternated along the length of the longline on six sets of approximately 400 live-baited hooks each, allowing a preliminary comparison of catch per unit effort (CPUE), hooking location, and mortality between the two hook types. On a previous trip, records of hooking location and mortality were obtained for J-hooks on nine additional longline sets. Yellowfin tuna <em> Thunnus albacares </em>accounted for 60% of the catch; the remainder was composed of 15 other species, none of which was represented by more than eight individuals. There was higher CPUE for all species combined, using circle hooks (5.05 fish/100 hooks) as compared with using “J” hooks (2.28 fish/100 hooks). Similar results were observed with the catch of the target species (yellowfin tuna), for which CPUE was approximately 2.5 times higher with circle hooks (3.33 tuna/100 hooks) as compared with J-hooks. Circle hooks also resulted in a lower mortality for all species (31% versus 42%) and for the target species (21% versus 39%). For all species, 95% of the fish taken on circle hooks were hooked in the jaw. Hooking location varied by species, but for all species combined, circle hooks consistently had a higher frequency of jaw hooking and a lower frequency of gut hooking than J-hooks. These preliminary results suggest that use of circle hooks in the pelagic longline fishery targeting yellowfin tuna may not only increase CPUE and survival of this species but also improve the survival of incidental catch and bycatch.
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Luis Godínez-Ortega, José, Juan V. Cuatlán-Cortés, Juan M. López-Bautista, and Brigitta I. van Tussenbroek. "A Natural History of Floating Sargassum Species (Sargasso) from Mexico." In Natural History and Ecology of Mexico and Central America. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97230.
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For at least several centuries, sargasso has inhabited the Atlantic Ocean, and there are historical records of these algae reaching the Mexican Veracruz State in the Gulf of Mexico. Blooming of sargasso in the southern tropical Atlantic is a current a global problem from Africa to the Greater Caribbean. Since 2015, exceptionally large quantities of sargasso have been arriving intermittently on the Mexican Caribbean coast, affecting coastal ecosystems and tourist beaches. Sargasso includes two holopelagic species, Sargassum natans and S. fluitans, with several varieties. There are no records of sexual reproduction in these species, and the algae are thought to spread exclusively by clonal reproduction by fragmentation. Although sargasso seaweeds have grown in the Sargasso Sea for centuries; they have not been well studied. This chapter deals with historical aspects of these algae, their taxonomic and morphological characteristics, distribution, ecology, and practical uses. Sargasso blooms in the central Atlantic started in 2011. In later years, the bloom developed to extend from West Africa, Brazil, and the Great Caribbean, including West-Indies, Mexico, and the Gulf of Mexico. The pelagic sargasso is a global phenomenon that must be understood by integrating natural history, modern biology, social and economic aspects.
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Harzsch, Steffen, Yvan Perez, and Carsten H. G. Müller. "Chaetognatha." In Structure and Evolution of Invertebrate Nervous Systems, 652–64. Oxford University PressOxford, 2015. http://dx.doi.org/10.1093/acprof:oso/9780199682201.003.0050.
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Abstract According to palaeontological evidence, Chaetognatha (arrow worms), a group of small marine predators that are major components of the zooplankton throughout our world oceans, were already present in the Early Cambrian Chengjang, in the Middle Cambrian Burgess Shale. These animals are considered to be the earliest active predator metazoans and displayed a planktonic lifestyle with possible ecological preferences for hyperbenthic niches close to the sea bottom. Today, the taxon Chaetognatha comprises more than 150 described species from all geographical and vertical ranges of the ocean, and they are among the most abundant pelagic organisms. Chaetognatha are characterized by the presence of horizontally projecting fins and, at the anterior end, two groups of moveable, cuticularized grasping spines used in capturing prey. In spite of an increasing number of molecular studies and an emerging consensus for protostome affinities, the phylogenetic position of the Chaetognatha is still one of the most enigmatic issues in metazoan phylogeny. The chaetognath genome is likely the product of a unique evolutionary history and shows the long isolation of this group. Furthermore, morphological characteristics provide evidence for a long evolutionary distance that separates the Chaetognatha from its closest (unknown) metazoan relative and suggest that this taxon in many aspects seems to have explored its own evolutionary pathways in generating tissue and organ diversity. Both the genome and morphological characters include many autapomorphies of this group, in addition to a bizarre character mix of protostome and deuterostome features. Here, the current knowledge of the nervous system is reviewed in these remarkable creatures.
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"Grenadiers of the World Oceans: Biology, Stock Assessment, and Fisheries." In Grenadiers of the World Oceans: Biology, Stock Assessment, and Fisheries, edited by Jeffrey C. Drazen. American Fisheries Society, 2008. http://dx.doi.org/10.47886/9781934874004.ch15.
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<em>Abstract.</em>—Energetic parameters such as metabolism, growth, and reproduction represent investments by an animal in maintenance and production. The available literature was reviewed to examine trends in these parameters for grenadiers to better understand their biology in relationship to shallow living species. Grenadiers are adapted to deep-sea habitats that have fundamentally different environmental conditions than the continental shelves where most exploited fishes live. Grenadiers have very low metabolic rates, similar to other deep-sea demersal and pelagic fishes. This appears to be the result of a relaxation in the selective pressure for locomotory capacity in dim or totally dark waters. Longevities are variable and dependant, in part, on body size. Regardless of longevity, low rates of mass-specific growth are typical and may be limited by its relationship to metabolism. Finally, reproductive outputs may be much lower than originally anticipated from gross measures of fecundity, and at least some species may reproduce less often than annually. Energetic data are sparse but until more are available for diverse species, we must assume that with a similar body form, phylogeny, and habitat, that all grenadiers have low rates of metabolism, growth, and reproduction. Grenadiers are exceptionally diverse and certainly variation exists, some of which can be explained by individual ecologies. Nevertheless it is clear that models based on the energetics of shallow living fishes cannot be used for grenadiers. Their energetic characteristics are different and make them extremely vulnerable to overexploitation. Grenadiers have become targets or major components of the bycatch in slope fisheries, so it is especially important that this basic fact be understood.
Conference papers on the topic "Pelage characteristics"
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Lubis, Muhammad Zainuddin, Andrey Eka Putra, Muhammad Nazi, Asep Priatna, and Asep Ma'mun. "Spatial Characteristics of Oceanography Conditions and The Relationship of Pelagic Fish." In 2019 2nd International Conference on Applied Engineering (ICAE). IEEE, 2019. http://dx.doi.org/10.1109/icae47758.2019.9221671.
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Brehmer, Patrice, Abdoulaye Sarre, Luis Gonzalez, Pascal Cotel, Jean-Pierre Hermand, and Gerlotto Francois. "Aggregative and schooling behaviour of small pelagic fish schools through echo type characteristics." In 2013 IEEE/OES Acoustics in Underwater Geosciences Symposium (RIO Acoustics). IEEE, 2013. http://dx.doi.org/10.1109/rioacoustics.2013.6683992.
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Yadrischenskaya, Tatyana Vasilievna. "Analysis of Perceptual-Mnemonic Characteristics of Students in Modern Conditions of Digitalization of Society." In International Scientific Conference on Philosophy of Education, Law and Science in the Era of Globalization (PELSEG 2020). Paris, France: Atlantis Press, 2020. http://dx.doi.org/10.2991/assehr.k.200723.081.
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Slavutskaya, Elena, Natalya Vostretsova, Evgeni Nikolaev, Anna Zakharova, and Svetlana Petunova. "Specifics of Interrelations among Emotional, Personal and Intellectual Characteristics in Preschool Children: Data Mining." In International Scientific Conference on Philosophy of Education, Law and Science in the Era of Globalization (PELSEG 2020). Paris, France: Atlantis Press, 2020. http://dx.doi.org/10.2991/assehr.k.200723.085.
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Akinola, Akinjide A., S. N. Ezeorah, and E. P. Nwoko. "New model for the rehydration characteristics of white yam at different temperatures." In 21st International Drying Symposium. Valencia: Universitat Politècnica València, 2018. http://dx.doi.org/10.4995/ids2018.2018.7337.
Full textAbstract:
A new model describing the variation in the rehydration ratio with rehydration time for yam slices is presented here. Also presented, is a new model for the rehydration kinetics of yam slices. Mass and moisture content rehydration data were collected while rehydrating 3.0 mm thick dehydrated yam slices. Regression analysis established that the mass rehydration data better fitted a two-term exponential equation rather than a second-order polynomial equation. Also, for the rehydration kinetics, the moisture content rehydration data was better fitted to a new empirical model rather than the Weibull, Peleg, and Exponential models. Keywords: Rehydration Ratio Models; Rehydration kinetic models; Yam; Weibull, Peleg, and Exponential models.
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Ishida, Hiroshi, Nobuhiro Maeda, Tetsuya Miwa, Tetsuo Yamazaki, Yoshihisa Shirayama, Tetsuhiko Toyohara, Nobuyuki Okamoto, and Takayoshi Kodama. "Characteristics of the Environment Around a Massive Sea-Floor Sulfide Area in the Okinawa Trough." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49987.
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It is necessary to carry out a proper environmental impact assessment for not only the sea-floor massive sulfide area where a special hydrothermal-vent chemosynthetic ecosystem is observed, but also its surrounding area. This paper shows provisional results of the environmental baseline survey conducted at the Izena Cauldron in 2009. Environmental conditions differed clearly between inside and outside of the Cauldron. In the inside area, a high turbidity layer was recognized at ca. 200 m above the sea-floor. In the bottom layer close to the hydrothermal active region, water temperature was slightly higher than the surrounding area with the lower pH, higher concentrations of both carbon dioxide and the dissolved Mn. Inside the Cauldron, the sulfur isotope ratio of the sediment close to a sea-floor massive sulfide was similar to that of the hydrothermal sulfate. In addition, heavy metal concentrations of the sediment were higher inside than outside of the Cauldron. Especially, concentrations of Cd, As and Hg were as high as poisonous levels. These results show the possibility that most of the chemical materials derived from hydrothermal vent remain in the Cauldron. Pelagic shrimps of the family Oplophoridae were widely distributed in the bottom layer inside the Cauldron. The biomass of benthic shrimps which belong to infraorder Caridea was higher inside than outside of the Cauldron. These higher biomass was likely caused by the abundant organic matter. This hypothesis was reinforced by the result of the mooring sediment trap (placed at ca. 50 m above the seafloor) experiment, which demonstrated that the settling particle in the Cauldron was supplied from not only the euphotic zone but also the hydrothermal-vent ecosystem.
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Cachioni, Marcelo, Maira Cristina Grigoleto, and Juliana Binotti Pereira Scariato. "Plano de gestão: sítio histórico urbano (SHU) "Rua do Porto" - Piracicaba - SP." In Seminario Internacional de Investigación en Urbanismo. Barcelona: Maestría en Planeación Urbana y Regional. Pontificia Universidad Javeriana de Bogotá, 2014. http://dx.doi.org/10.5821/siiu.6016.
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O presente trabalho se propõe a apresentar reflexões resultantes dos estudos desenvolvidos sobre o Sítio
Histórico Urbano ‘Rua do Porto’ em Piracicaba - SP Brasil, tendo como enfoque a constituição da paisagem
cultural e quatro elementos: a água (relação do homem com o meio), o peixe (arte do saber/fazer), as
olarias (atividade profissional e característica construtiva) e a produção da pamonha (arte do saber/fazer).
Tais análises embasam histórica e culturalmente o Plano de Gestão proposto para área, cuja base
conceitual se fundamenta na concepção de paisagem cultural.
Por meio de um percurso retrospectivo sobre as vivências às margens do Rio Piracicaba, foi possível
verificar como esses itens têm ou tiveram suas existências e representações marcadas pelas características
ribeirinhas de ‘ser’ e ‘viver’. É possível perceber como foram constituídos por meio da organização da
memória histórica e afetiva, resultante de um processo de seleção baseado em ações do poder público e
dos cidadãos em suas manifestações de ‘contra poder’. This paper aims to present reflections resulting from developed over the Urban Historic Site 'Rua do Porto'
studies in Piracicaba - SP Brazil, having as focus the constitution of the cultural landscape and the four
elements: water (man's relationship with the environment), fish (art of know-how), the potteries (occupation
and constructive characteristic) and the pamonha’s production - a kind of sweet corn cake (art of know-how).
These analyzes underlie historical and culturally Management Plan proposed to this area, whose conceptual
basis is based on the concept of cultural landscape.
Through a retrospective journey experiences on the Rio Piracicaba banks, it was possible to see how these
items have either had their existence and representations marked by riverine characteristics of 'being' and
'living'. You can see how they were made through the historical and affective memory organization's,
resulting in a selection process based on actions of government and citizens in their expressions of 'counterpower'.
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Chiba, Satoshi, Satoshi Chiba, Maki Oyagi, Maki Oyagi, Hideki Kokubu, Hideki Kokubu, Yoshinori Tanimura, et al. "FIELD SURVEY FOR REFRACTORY ORGANIC MATTER QUANTITY IN THE MARINE SEDIMENT OF ISE BAY AND EVALUATION OF ITS EFFECT ON THE PERSISTENCY OF HYPOXIC WATER GENERATION." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b944a57dc00.06450512.
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This study was performed to investigate the effect of the refractory organic matter (ROM) in the marine sediment on the lengthening of the large scale generation of the hypoxic water in Ise Bay. A field survey for collecting core samples of the sediment was conducted in 2015. The analysis with the data of sedimentation rate revealed many important features. A considerable amount of ROM deposited during the period of excess eutrophication in the past was found in the sediment. The total quantity of the degradable ROM (d-ROM) per unit seafloor area was from 71 to 231 mgC/cm2. The mean characteristic time of degradation of d-ROM was about 47 years. A pelagic ecosystem - marine sediment coupled model was employed and the long-term simulation from 1950 was carried out. The simulation results showed the total quantity of d-ROM reaches its maximum at the year around 2000 and there is about a 20 year delay from the peak time of the eutrophication. This feature caused the prolongation of the higher oxygen consumption as well as the higher nutrient release from the sediment in recent years. The increase of the hypoxic water area and the volume in 2010 due to the excess ROM was about 11% and 18%, respectively. These findings show the substantial effect of ROM in the marine sediment on the persistency of water pollution.
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Chiba, Satoshi, Satoshi Chiba, Maki Oyagi, Maki Oyagi, Hideki Kokubu, Hideki Kokubu, Yoshinori Tanimura, et al. "FIELD SURVEY FOR REFRACTORY ORGANIC MATTER QUANTITY IN THE MARINE SEDIMENT OF ISE BAY AND EVALUATION OF ITS EFFECT ON THE PERSISTENCY OF HYPOXIC WATER GENERATION." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b431690d4b8.
Full textAbstract:
This study was performed to investigate the effect of the refractory organic matter (ROM) in the marine sediment on the lengthening of the large scale generation of the hypoxic water in Ise Bay. A field survey for collecting core samples of the sediment was conducted in 2015. The analysis with the data of sedimentation rate revealed many important features. A considerable amount of ROM deposited during the period of excess eutrophication in the past was found in the sediment. The total quantity of the degradable ROM (d-ROM) per unit seafloor area was from 71 to 231 mgC/cm2. The mean characteristic time of degradation of d-ROM was about 47 years. A pelagic ecosystem - marine sediment coupled model was employed and the long-term simulation from 1950 was carried out. The simulation results showed the total quantity of d-ROM reaches its maximum at the year around 2000 and there is about a 20 year delay from the peak time of the eutrophication. This feature caused the prolongation of the higher oxygen consumption as well as the higher nutrient release from the sediment in recent years. The increase of the hypoxic water area and the volume in 2010 due to the excess ROM was about 11% and 18%, respectively. These findings show the substantial effect of ROM in the marine sediment on the persistency of water pollution.
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Carta, Federica, Diego Ros McDonnell, and Pedro Enrique Collado Espejo. "El Castillo de La Atalaya (siglo XVIII), en Cartagena (Región de Murcia, España). Análisis formal y constructivo." In FORTMED2020 - Defensive Architecture of the Mediterranean. Valencia: Universitat Politàcnica de València, 2020. http://dx.doi.org/10.4995/fortmed2020.2020.11366.
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The Atalaya Castle (eighteenth century), in Cartagena (Region of Murcia, Spain). Formal and constructive analysisThe Atalaya Castle (eighteenth century) is one of the military fortifications that were part of the defense of Cartagena. The defensive system of the period was composed of an important walled enclosure, which surrounded the city, the arsenal, and a group of fortresses outside the city wall, located on the nearby hills. One of these defensive constructions is the Atalaya Castle or Fort, located to the west of the city from its position it protected the population from attacks both by land and by sea. To the north and west by land, through the Almarjal and the Pelayo mountains, the south by sea covered the possible landings in the bays of the Algameca Grande and the Algameca Chica. The building is a magnificently construction, the fort has a pentagon ground plan with five bastions at each angle. It has an interior building in U arranged on a solid bastioned platform the whole complex is surrounded by a dry moat. The fortification present certain formal elements used in other constructions that had been lifted in the city at that time, circumstance gave unity to the whole. The materials consisted of employed mainly stone and brick, the constructive elements introduce certain heterogeneity. The purpose of the communication is to present the results of the comprehensive analysis carried out in the Atalaya Castle as well as to contribute, through its dissemination to raise awareness of the need for its restoration and enhancement. Research has studied the characteristics of the formal and constructive system of the fortification currently in a state of semiabandonment, a proposal has also been conducted for a new cultural use as a guarantee of its correct recovery and conservation.
Reports on the topic "Pelage characteristics"
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Schling, Maja, Roberto Guerrero Compeán, Nicolás Pazos, Allison Bailey, Katie Arkema, and Mary Ruckelshaus. The Economic Impact of Sargassum: Evidence from the Mexican Coast. Inter-American Development Bank, September 2022. http://dx.doi.org/10.18235/0004470.
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This paper assesses the local economic impact of pelagic Sargassum seaweed washed ashore in tourism-heavy coastal zones in the Mexican State of Quintana Roo. The study relies on a carefully designed Geographic Information Systems (GIS) dataset of monthly observations from 2016 to 2019 for 157 beach segments. The dataset comprises an innovate measure of Sargassum seaweed presence, remotely sensed nighttime light intensity as a proxy of economic growth, as well as information on key infrastructure, sociodemographic and beach characteristics. We apply a fixed-effects regression model that controls for general time trends and unobserved, time-invariant differences across observations. We estimate that the presence of Sargassum in a beach segment reduces nighttime light intensity by 17.5%, representing an approximate 11.6% decrease in gross local product. Considering that impacts of Sargassum on local economic activity may be delayed due to reputational effects, our analysis finds that significant lagged effects can be detected up until 12 months after Sargassum was detected on the shoreline. These effect sizes range between a 5.9 and a 9.9% reduction in gross local product. Various robustness checks, including an adjusted measurement of Sargassum and the consideration of potential spatial correlation across beach segments, indicate that estimated impacts are consistently significant and negative across numerous specifications. For one of most tourism-dependent regions in the world, the recurrent influx is one of the most threatening manifestations of climate change. Our research is the first to robustly quantify the economic impact of Sargassum, and highlights the extent to which economic activity is negatively affected by the accumulation of seaweed and how these effects persist over time. The next important step is for both public and private sectors to invest in forecasting systems and containment strategies as well as engage in cleanup efforts to mitigate severe accumulations, inducing economic resilience in coastal communities.