6 research outputs found

    Halopteris alternata

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    <i>Halopteris alternata</i> (Nutting 1900) <p>Fig. 2</p> <p> <i>Plumularia alternata</i> Nutting, 1900: 62, pl. 4, figs. 1, 2.</p> <p> <i>Halopteris alternata</i> Schuchert 1997: 42, fig. 14.</p> <p> <b>Type locality.</b> Bahamas: Barracuda Rocks (Nutting 1900: 62).</p> <p> <b>Voucher material.</b> Reef patches of Santa Marta, Magdalena, Colombia. 53 feet (16 m), October 2015, SCUBA. Apical fragment of a colony 2 cm high, without hydrorhiza and with a male gonotheca.</p> <p> <b>Description.</b> Segmented obliquely monosiphonic hydrocaulus with alternating hydrocladium, each of the main segments of the hydrocaulus and hydrocladium presents a main hydrothecae and three or four nematothecas: two laterals, one inferior and one upper axillary to the hydrothecae present in the distal part of the colony. The intersegments have a nematotheca in the middle part. Each hydrocladium has lateral apophyses with a first short, square segment devoid of nematothecas, the second segment is elongated, and with a nematotheca in the middle zone, the rest of the hydrocladium has homomerous segmentation. As in the hydrocaulus, the intersegments have a nematotheca in the middle part. The hydrothecae has a cup shape, the adcauline and abcauline wall are straight laterally, and it joins the hydrocaulus from half to three quarters of the adcauline wall. The middle-lower nematotheca is immobile and the margin does not exceed the base of the hydrothecae, the lateral nematotheca is cone-shaped and emerges from a short and mobile pedicel, the margin is smooth and is not everted. The nematothecas of the intersegments are similar to the mid-lower, but are mobile and have a longer adcauline wall. The axillary nematotheca is the same as the rest of nematothecas. All the nematothecas present two cameras (bitalamic). The male gonotheca emerges from the hydrocaulus through a pedicel of a segment and presents an oblong shape.</p> <p> <b>Reported distribution.</b> The Gulf of Mexico (Calder & Cairns 2009). Unites States in Florida (Calder 2013). The Caribbean Sea (Galea 2008; Calder & Kirkendale 2005). Eastern Atlantic (Ansín Agís <i>et al.</i> 2001). Brazil (Oliveira <i>et al.</i> 2016).</p>Published as part of <i>Torres-Rodríguez, Javier, Ortiz-Oyola, Daniel, Puentes-Sayo, Alejandra, Lecompte, Orlando P. & Jauregui, Aminta, 2020, Genetic and morphologic identities of hydrozoans (Cnidaria, Hydrozoa) from reef patches of Santa Marta, Colombian Caribbean, pp. 127-140 in Zootaxa 4758 (1)</i> on page 131, DOI: 10.11646/zootaxa.4758.1.5, <a href="http://zenodo.org/record/3731737">http://zenodo.org/record/3731737</a&gt

    Dentitheca dendritica

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    <i>Dentitheca dendritica</i> (Nutting 1900) <p>Fig. 3</p> <p> <i>Plumularia dendritica</i> Nutting, 1900: 67, pl. 8, figs. 4–6.— Jones, 2002: 217.</p> <p> <i>Dentitheca dendritica</i> — Humann, 1992: 73, middle photograph.— Humann & DeLoach, 2002: 73, middle photograph—Cairns <i>et al.</i>, 2002: 55.</p> <p> <i>Dentitheca dendritica</i> ― Calder & Kirkendale, 2005: 482.</p> <p> <b>Type locality.</b> Bahamas: near Little Cat Island (Nutting 1900: 67).</p> <p> <b>Voucher material.</b> Reef patches of Santa Marta, Magdalena, Colombia. 49,2 feet (15 m). April 2016. SCUBA. Fragment of the hydrocaulus with several branches (hydrocladia).</p> <p> <b>Description.</b> Fan-shaped colonies arising in a root-like form that is interwoven. Hydrocaulus polysiphonic and pinnately arranged. Brown and thick perisarc. The primary branches are polysiphonic and the subsequent ones also but in a smaller proportion until reaching the hydrocladia, which is monosiphonic. Main tube is divided into internodes by weak transverse nodes. Apophyses ending in a distal, oblique node with a cone-shaped nematotheca. Hydrocladia homomerously segmented into internodes separated by oblique nodes. Centrally placed hydrothecae with three nematotheca, one in the middle and two lateral. Hydrothecae tubular, adnate, abcauline side straight to slightly convex, slightly everted at rim. The hydrothecal margin has two lateral teeth with rounded tips. Mobile and bitalamic nematothecas; nematothecas from hydrothecae have a prominent apophyses; lateral nematothecas slightly surpassing the tips of lateral projection of the rim. Male gonotheca has a conical shape, the basal part narrows and the apical part widens. Flat operculum, usually develops from the nematothecas of the hydrocaulus.</p> <p> <b>Remarks.</b> Male gonotheca is similar with the morphology presented by Galea <i>et al.</i> (2012).</p> <p> <b>Reported distribution.</b> Atlantic coast of Florida. Palm Beach (Humann 1992; Humann & DeLoach 2002; Cairns <i>et al.</i> 2002).—Biscayne Bay (Jones 2002, as <i>Plumularia dendritica</i>). Florida (Humann 1992) and the Bahamas (Vervoort 1968, as <i>Plumularia dendritica</i>) to the Caribbean Sea (Calder & Kirkendale 2005; Galea 2010).</p>Published as part of <i>Torres-Rodríguez, Javier, Ortiz-Oyola, Daniel, Puentes-Sayo, Alejandra, Lecompte, Orlando P. & Jauregui, Aminta, 2020, Genetic and morphologic identities of hydrozoans (Cnidaria, Hydrozoa) from reef patches of Santa Marta, Colombian Caribbean, pp. 127-140 in Zootaxa 4758 (1)</i> on pages 133-134, DOI: 10.11646/zootaxa.4758.1.5, <a href="http://zenodo.org/record/3731737">http://zenodo.org/record/3731737</a&gt

    Genetic and morphologic identities of hydrozoans (Cnidaria, Hydrozoa) from reef patches of Santa Marta, Colombian Caribbean

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    Torres-Rodríguez, Javier, Ortiz-Oyola, Daniel, Puentes-Sayo, Alejandra, Lecompte, Orlando P., Jauregui, Aminta (2020): Genetic and morphologic identities of hydrozoans (Cnidaria, Hydrozoa) from reef patches of Santa Marta, Colombian Caribbean. Zootaxa 4758 (1): 127-140, DOI: https://doi.org/10.11646/zootaxa.4758.1.

    Dentitheca dendritica

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    <i>2) Dentitheca dendritica (Nutting 1900).</i> <p> <i>D. dendritica</i> is a hydroid reported in the United States on the coast of Florida and on the Caribbean coast of Panama. <i>Plumularia habereri</i> (Stechow, 1909) a species that inhabits the tropical western Pacific, Indian oceans and the Atlantic has been generally recognized as a different species (Ryland & Gibbons 1991; Hirohito 1995; Schuchert 2003; Kirkendale & Calder 2003; Di Camilo <i>et al.</i> 2010, Calder 2013). However, Galea (2010) included the record of <i>P. habereri</i> by Flórez (1983) and Bandel & Wedler (1987) from Colombia as synonym of <i>D. dendritica</i>. Here, we do not consider both species as synonyms based on the differences established by Galea (2012) where the gonotheca of <i>D. dendritica</i> originates as replacements of nematotheca adjacent to hydrothecae or on the apophyses, whereas those of <i>P. habereri</i> arise in axils of internode apophyses (Calder 2013).</p> <p> The morphological identification up to species level wasn’t possible for the sample Macro1 because of the small amount of tissue available. However, this sequence showed to be related with sequences from Madagascar belonging to <i>Macrorhynchia phoenicea</i> (synonym: <i>Macrorhynchia sibogae</i> (Billard 1913)), and this suggest the existence of cryptic species from <i>Macrorhynchia</i> genus in the South Caribbean. A more exhaustive sampling is needed in the region in order to obtain more individuals belonging to this genus for a complete analysis.</p> <p> Due to the lack of studies in the Colombian Caribbean about hydrozoans, the molecular and morphological results found in the present study are of great importance. It is essential to conduct research on this group of organisms that allows expanding the knowledge about their biology, diversity and ecology, mainly in regions where these studies have not been carried out previously. Knowledge on the local biodiversity is an essential pre requisite for the monitoring and management of ecosystems (Miglietta <i>et al.</i> 2018) and this contribution to the marine hydrozoan fauna in Colombia is an important step to obtain base information for more studies in this taxa.</p>Published as part of <i>Torres-Rodríguez, Javier, Ortiz-Oyola, Daniel, Puentes-Sayo, Alejandra, Lecompte, Orlando P. & Jauregui, Aminta, 2020, Genetic and morphologic identities of hydrozoans (Cnidaria, Hydrozoa) from reef patches of Santa Marta, Colombian Caribbean, pp. 127-140 in Zootaxa 4758 (1)</i> on pages 135-136, DOI: 10.11646/zootaxa.4758.1.5, <a href="http://zenodo.org/record/3731737">http://zenodo.org/record/3731737</a&gt

    La violencia contra las mujeres en las universidades peruanas: Prevalencia e impacto en la productividad académica en las facultades de ciencias empresariales e ingeniería

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    Mediante una encuesta estructurada aplicada a una muestra de 6,964 estudiantes universitarios (3,508 mujeres y 3,456 hombres) provenientes de 34 universidades en 22 regiones del país, se determina el impacto académico de la violencia contra las mujeres en relaciones de pareja (VcM). El 65% de estudiantes mujeres han sido atacadas por sus parejas o exparejas y el 67.1% de estudiantes hombres ha agredido a su pareja o expareja, al menos una vez en su relación. Considerando solo el último año, el 47.8% de mujeres ha sido agredida por su pareja, con un promedio de 20 ataques por año, generando una pérdida promedio de 20.4 días de clase al año, por ausentismo y presentismo, y 19.3 incidentes críticos de disminución de rendimiento y amonestación social de colegas y profesoras/es. Por causa de la violencia contra las mujeres en relaciones de pareja, existiría una pérdida anual de 14 millones 810 mil días de productividad académica (días de clase perdidos), valor equivalente a 15,428 personas que dejarían de estudiar a tiempo completo, al año

    International Nosocomial Infection Control Consortium report, data summary of 50 countries for 2010-2015: Device-associated module

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    •We report INICC device-associated module data of 50 countries from 2010-2015.•We collected prospective data from 861,284 patients in 703 ICUs for 3,506,562 days.•DA-HAI rates and bacterial resistance were higher in the INICC ICUs than in CDC-NHSN's.•Device utilization ratio in the INICC ICUs was similar to CDC-NHSN's. Background: We report the results of International Nosocomial Infection Control Consortium (INICC) surveillance study from January 2010-December 2015 in 703 intensive care units (ICUs) in Latin America, Europe, Eastern Mediterranean, Southeast Asia, and Western Pacific. Methods: During the 6-year study period, using Centers for Disease Control and Prevention National Healthcare Safety Network (CDC-NHSN) definitions for device-associated health care-associated infection (DA-HAI), we collected prospective data from 861,284 patients hospitalized in INICC hospital ICUs for an aggregate of 3,506,562 days. Results: Although device use in INICC ICUs was similar to that reported from CDC-NHSN ICUs, DA-HAI rates were higher in the INICC ICUs: in the INICC medical-surgical ICUs, the pooled rate of central line-associated bloodstream infection, 4.1 per 1,000 central line-days, was nearly 5-fold higher than the 0.8 per 1,000 central line-days reported from comparable US ICUs, the overall rate of ventilator-associated pneumonia was also higher, 13.1 versus 0.9 per 1,000 ventilator-days, as was the rate of catheter-associated urinary tract infection, 5.07 versus 1.7 per 1,000 catheter-days. From blood cultures samples, frequencies of resistance of Pseudomonas isolates to amikacin (29.87% vs 10%) and to imipenem (44.3% vs 26.1%), and of Klebsiella pneumoniae isolates to ceftazidime (73.2% vs 28.8%) and to imipenem (43.27% vs 12.8%) were also higher in the INICC ICUs compared with CDC-NHSN ICUs. Conclusions: Although DA-HAIs in INICC ICU patients continue to be higher than the rates reported in CDC-NSHN ICUs representing the developed world, we have observed a significant trend toward the reduction of DA-HAI rates in INICC ICUs as shown in each international report. It is INICC's main goal to continue facilitating education, training, and basic and cost-effective tools and resources, such as standardized forms and an online platform, to tackle this problem effectively and systematically
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