High incidence of limb autotomy in a crab population from a coastal lagoon in the province of Buenos Aires, Argentina

1989 ◽  
Vol 67 (8) ◽  
pp. 1976-1985 ◽  
Author(s):  
Eduardo D. Spivak ◽  
María Angélica Politis
Keyword(s):  
Coastal Lagoon ◽  
Buenos Aires ◽  
Lower Proportion ◽  
Shore Crab ◽  
Agonistic Behaviour ◽  
Male Adult ◽  
Size Dependent ◽  
The Third ◽  
Crab Population ◽  
High Incidence

A total of 2243 individuals of the shore crab Cyrtograpsus angulatus were obtained from Mar Chiquita lagoon, in the province of Buenos Aires, Argentina, from August 1986 to May 1987. Adult crabs were found at low tide on stones or on the beach, whereas juveniles were found beneath stones. Each crab was measured, sexed, and examined for the incidence of autotomized and regenerated limbs. Crabs exhibited a high, although size dependent, incidence of autotomy that was higher in female than in male adult crabs; the lowest values were found in juveniles. Crabs lost from one to seven limbs; both sexes showed a higher number of multiple, and a reduced number of single, autotomies than expected. The highest incidence occurred in the longest and most exposed limbs: the third and fourth walking legs; the chelae showed a reduced incidence. Crabs with multiple autotomy lost adjacent rather than nonadjacent limbs. The regeneration of a lost limb did not depend on the number of autotomies in small crabs, but it did in the case of large crabs which frequently did not regenerate some of their lost limbs. The five pairs of limbs had similar, size dependent, incidence of regeneration. Adult crabs with multiple autotomies had a lower proportion of synchronous regeneration of adjacent limbs. The high incidence of autotomy in this population of C. angulatus is discussed and alternative explanations of its causes are proposed, namely, inter- and intra-specific predation and agonistic behaviour.

scholarly journals Relationship between the endopelvic fasciae and the inferior hypogastric plexus Activity Log

2020 ◽  
pp. 17-30
Author(s):  
Vicente Mitidieri ◽  
Alejandro Mitidieri ◽  
Brenda Queirolo Burgos ◽  
Julián Paione Oleszuk ◽  
Tomás Cifone
Keyword(s):  
Buenos Aires ◽  
Terminal Portion ◽  
Male Adult ◽  
Endopelvic Fascia ◽  
Femoral Length ◽  
Inferior Hypogastric Plexus ◽  
The Third ◽  
School Of Medicine ◽  
Hypogastric Plexus ◽  
Pelvic Splanchnic Nerves

The Inferior Hypogastric Plexus (PHI) is a difficult plexus to define and dissect, hence the ease with which it can be injured both in anatomical and surgical research. Defining its relationships, with respect to the endopelvic fascia (FEP), including its formation and branches, (Baader B., et al., 2003, p. 129) would facilitate their dissection. This anatomical investigation aims to standardize different portions that require a different approach to preserve their integrity. Cadaveric material belonging to the Third Chair of Anatomy of the School of Medicine, Buenos Aires University was used. One (n=1) formolized male adult organ block and seventeen (n=17) hemipelvis were dissected: five (n=5) adult male hemipelvis formolized, nine (n=9) fetal hemipelvis formolized (7 male and 2 female), between 18 and 36 weeks of gestational age calculated by femoral length, and three (n=3) adult hemipelvis from fresh cadavers, two (n=2) female and one (n=1) male. Microdissection elements and magnifying glasses were used. We were able to distinguish three different sectors: the first, preplexual, located posterior and lateral to the FEP, where the sympathetic components (hypogastric nerves) and the parasympathetic (pelvic splanchnic nerves) have not yet converged to form the plexus. A second sector, plexual, with the plexus already fully formed, located in the thickness of the FEP. Finally, its terminal portion, already devoid of the FEP, formed by nerves that go to the perineal membrane accompanied by arterial and venous vessels. Each of these sectors requires a different approach in both anatomical and surgical dissection.

scholarly journals Epidemiology of Injuries Sustained by Elite Under-18 Rugby Players

2019 ◽  
Vol 54 (11) ◽  
pp. 1187-1191
Author(s):  
Cristian Solis-Mencia ◽  
Juan José Ramos-Álvarez ◽  
Roberto Murias-Lozano ◽  
Mikel Aramberri ◽  
José Carlos Saló
Keyword(s):  
Cohort Study ◽  
Confidence Interval ◽  
Outcome Measure ◽  
Injury Rate ◽  
Physical Nature ◽  
Main Outcome Measure ◽  
The Third ◽  
High Incidence ◽  
The World ◽  
Rugby Players

Context The physical nature of rugby is responsible for the high incidence of injuries, but no researchers have examined the epidemiology of injuries sustained by elite under-18 rugby players. Objective To investigate the incidence of injuries sustained by players on the Spanish national under-18 rugby team during their participation in 4 European championships (2014–2017) and the types of play in which they occurred. Design Cohort study. Setting European rugby championships. Patients or Other Participants Ninety-eight under-18 rugby players. Main Outcome Measure(s) All injuries sustained during the championship periods were recorded per the World Rugby protocol. Results A total of 40 injuries were logged over the 4 championships. The incidence of injury was higher during matches than during training (P < .05), with 138.0 (95% confidence interval [CI] = 136.5, 139.6) injuries per 1000 hours of play compared with 1.2 (95% CI = 1.2, 1.3) per 1000 hours of training. With only 2 days of rest between games, the injury rate was higher than with 3 days of rest (P < .05). More injuries were sustained during the third quarter of the game: 13 (44.8%) versus 6 (20.6%) in the last quarter, 5 (17.3%) in the second quarter, and 5 (17.3%) in the first quarter. Conclusions The most common injuries during matches were sprains and concussions, and these injuries were more likely to occur during matches than during training. Most injuries were caused by tackles and occurred during the third quarter of the game. These findings indicate that teams should focus on teaching players skills to reduce injuries caused by tackles and warming up properly before returning to the field after halftime. The injury rate was higher with only 2 versus 3 days' rest between games. These results suggest that young players' matches should be at least 72 hours apart.

‘Digital indigestion’: cumbia, class and a post-digital ethos in Buenos Aires

Popular Music ◽  
2015 ◽  
Vol 34 (2) ◽  
pp. 175-196 ◽  
Author(s):  
Geoffrey Baker
Keyword(s):  
Middle Class ◽  
Digital Divide ◽  
Social Cohesion ◽  
Buenos Aires ◽  
Government Policies ◽  
Local Form ◽  
Digital Inclusion ◽  
The Third ◽  
Popular Classes ◽  
Latin Americanism

AbstractThis article focuses on three recent manifestations of cumbia in Buenos Aires, Argentina: digital cumbia released by ZZK Records; retro cumbia orchestras; and a newer strand of digital cumbia, música turra. The first two are identified with the middle class, whereas the third emerged from the clases populares (‘popular classes’). Música turra is underpinned by government policies towards digital inclusion, while middle-class incursions into the traditionally working-class sphere of cumbia, too, suggest increasing social cohesion. However, the digital fascination of música turra contrasts with an embrace of the analogue and acoustic in middle-class cumbia. These developments point to the emergence of a post-digital ethos and a shift from a digital to a post-digital divide, also running along class lines, analysed here through a Bourdieusian lens of taste and distinction. While transnational in nature, the post-digital ethos appears in Buenos Aires in a distinctive local form, articulated to growing Latin Americanism and post-neoliberalism on the part of the middle class.

Taxonomic notes on the genus Gonycentrum Bergroth (Hemiptera: Tingidae)

Zootaxa ◽  
2006 ◽  
Vol 1364 (1) ◽  
pp. 67
Author(s):  
BARBARA LIS ◽  
JERZY A. LIS
Keyword(s):  
Lower Cretaceous ◽  
Buenos Aires ◽  
Single Species ◽  
Systematic Position ◽  
Buenos Aires Province ◽  
The Third ◽  
The Family ◽  
Fossil Genus

The monotypic phatnomatine genus Pampacader (with its single species P. cicchinoi) was recently described from Argentina (Carpintero & Montemayor 2005) as the first genus of the tribe Phatnomatini recorded from Buenos Aires province and the third (after Phatnoma Fieber and Eocader Drake & Hambelton) known from Argentina. The genus was then soon compared with Ambarcader Perrichot, Nel, Guilbert & Néraudeau, described from the Lower Cretaceous amber of France, in a discussion of the systematic position of this new fossil genus within the family (Perrichot et al. 2006).

scholarly journals First record of Porichthys porosissimus Cuvier, 1829 (Actinopterygii: Batrachoidiformes) and Macrodon atricauda Günther, 1880 (Actinopterygii: Perciformes) in Mar Chiquita coastal lagoon, Buenos Aires, Argentina

Check List ◽  
2014 ◽  
Vol 10 (4) ◽  
pp. 947-949
Author(s):  
Sofía López ◽  
María Corbo ◽  
Damian Castellini ◽  
Nicolás Lajud ◽  
Mariano González Castro
Keyword(s):  
Coastal Lagoon ◽  
Buenos Aires ◽  
First Record

scholarly journals Third eyelid gland protrusion in dogs: an experimental model proposal

2008 ◽  
Vol 38 (7) ◽  
pp. 1920-1924
Author(s):  
Vânia Pais Cabral ◽  
Eduardo Watanabe ◽  
Raimundo Alberto Tostes ◽  
Sandra Maria Simonelli ◽  
José Luiz Laus
Keyword(s):  
Experimental Model ◽  
Male Adult ◽  
The Third ◽  
Schirmer’S Test

The objective of this research was to present an experimental model for the prolapse of the third eyelid gland in male, adult mongrel dogs by the use of a periorbital glandular support conjunctiva tissue resection followed by macro and microscopic assessments. Length, thickness and width of normal glands were statistically studied at baseline and then again after a period of 30 days of exposition. In relation to the experimental model, 84.21% of glands, which underwent the resection of the conjunctiva support tissue, support tissue, remained protusioned. There were significant differences between normal and protusioned glands. Protusioned glands were larger in respect to length, thickness and width. For the microscopy studies, two experimental groups were established: non-treated protusioned glands (GI); and buried protusioned glands (GII). Glandular, conjunctiva tissue, and duct alterations were studied in both groups. Through the results obtained by the Schirmer's test, it was evidenced that the lachrymal production decreased when compared to the normal ones not protusioned, especially in those cases where the protusioned glands were not buried.

scholarly journals Proposal for a smart city index for municipalities in Argentina

Paakat ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 1-25
Author(s):  
María Verónica Alderete ◽  
Keyword(s):  
Smart City ◽  
Online Survey ◽  
Buenos Aires ◽  
Smart Cities ◽  
Capital Cities ◽  
Four Dimensions ◽  
The Third ◽  
National Statistics ◽  
The World ◽  
Buenos Aires City

The development of smart cities has yielded into a desirable objective among many cities around the world. International indexes of smart cities focus on large urban cities without interest on intermediate cities of developing countries. This paper pretends to fill this gap by proposing a smart city index for the capital cities in Argentina, together with Buenos Aires City and Bahia Blanca. The index is compound of four dimensions: Environment, Governance, Society and ICT, and Mobility and Transport which are based on a set of indicators. Data emerges from official websites and national statistics. In the case of Bahia Blanca, a wider smart city index with subjective indicators from an online survey is built. Alternative versions of the index, weighted (according to the vision of citizens, enterprises and politicians) and non-weighted are provided. Results show that the cities of Bahia Blanca, Ciudad Autonoma de Buenos Aires and Cordoba are the third smartest cities in Argentina.

A new species of the genus Ablabesmyia Johannsen from the Neotropics and description of the pupa of Ablabesmyia bianulata Paggi (Diptera: Chironomidae: Tanypodinae)

Zootaxa ◽  
2010 ◽  
Vol 2386 (1) ◽  
pp. 49 ◽  
Author(s):  
AUGUSTO SIRI ◽  
ANALÍA C. PAGGI
Keyword(s):  
New Species ◽  
Buenos Aires ◽  
Instar Larva ◽  
Color Pattern ◽  
Fourth Instar ◽  
Buenos Aires Province ◽  
Fourth Instar Larva ◽  
Male Adult ◽  
A New Species ◽  
Male Pupa

The male, pupa and fourth instar larva of Ablabesmyia platensis sp. n. from La Plata, Buenos Aires province, Argentina and the pupa of A. bianulata Paggi collected in southern Argentina are described and figured. The male adult diagnosis of A. bianulata is emended, and the aedeagal complex is redescribed and photographed. Differences in the aedeagal complex and the color pattern of the pupa mainly distinguish these two species. The new species is also compared with the Neotropical A. oliveirai Oliveira et Gessner.

scholarly journals Dental Health Services Response to COVID-19 in Norway

2020 ◽  
Vol 17 (16) ◽  
pp. 5843 ◽  
Author(s):  
Lina Stangvaltaite-Mouhat ◽  
Marte-Mari Uhlen ◽  
Rasa Skudutyte-Rysstad ◽  
Ewa Alicja Szyszko Hovden ◽  
Maziar Shabestari ◽  
...  
Keyword(s):  
Health Care ◽  
Infection Prevention ◽  
Dental Health ◽  
Lower Proportion ◽  
Prevention Measures ◽  
Dental Health Services ◽  
Dental Health Care ◽  
Dental Staff ◽  
High Incidence ◽  
History Of

We aimed to investigate the management of urgent dental care, the perception of risk and workplace preparedness among dental staff in Norway during the COVID-19 pandemic. An electronic questionnaire regarding the strictest confinement period in Norway (13 March–17 April 2020) was distributed to dental staff. Among the 1237 respondents, 727 (59%) treated patients, of whom 170 (14%) worked in clinics designated to treat patients suspected or confirmed to have COVID-19. Out of them 88% (143) received training and 64% (103) simulation in additional infection prevention procedures, while 27 (24%) respondents reported deviation. In total, 1051 (85%) respondents perceived that dental staff had a high risk of being infected, 1039 (84%) that their workplace handled the current situation well, 767 (62%) that their workplace had adequate infection control equipment and 507 (41%) agreed that their workplace is well equipped to handle an escalation. Before an appointment, 1182 (96%) respondents always/often inquired per phone information if a patient experienced symptoms of COVID-19, and 1104 (89%) asked about a history of travel to affected areas. Twice as many patients on average per week were treated by phone than in a clinic. A lower proportion of dental staff in high incidence counties applied additional infection prevention measures compared to low and medium incidence counties. To conclude, urgent dental health care was managed relatively well in Norway. Additional training of the dental staff in adequate infection prevention and step-by-step procedures may be needed. These results may be used to improve the dental health service’s response to future outbreaks.

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