Metazoan parasite infracommunities of Mycteroperca bonaci (Poey, 1960) (Pisces: Epinephelidae) in reef and coastal environments off the coast of Yucatán, México

2015 ◽  
Vol 60 (3) ◽  
Author(s):  
Juan F. Espínola-Novelo ◽  
Carlos González-Salas ◽  
Sergio Guillén-Hernández ◽  
Ken MacKenzie
Keyword(s):  
Parasitic Infection ◽  
Age Groups ◽  
Infection Prevalence ◽  
Multivariate Statistical ◽  
Parasite Communities ◽  
Mycteroperca Bonaci ◽  
Discriminant Analyses ◽  
Commercially Important ◽  
Biological Tags ◽  
Two Age Groups

AbstractThe black grouper Mycteroperca bonaci is a commercially important fish off the coast of Yucatan, Mexico. To investigate possible differences between parasite communities in two different environments, 60 fish were collected from two areas during 2010 and 2011 and examined for parasites. The fish were classified into two age groups, in each of which the parameters of parasitic infection - prevalence, abundance and intensity - were determined. Parasite faunas were further described at the infracommunity level. Using both univariate (PERMANOVA) and multivariate statistical methods, the values of richness, abundance, diversity and Brillouin evenness as well as the Index values of Bray-Curtis and Jaccard for similarity were calculated and compared. The results of these tests and of CAP discriminant analyses at the two sites showed the existence of two distinct parasite communities. The parasite taxa mainly responsible for the differences were the digeneans Dollfustrema sp., Prosorhynchus spp., Lepidapedoides epinepheli and Hamacreadium mutabile, and the nematode Philometra salgadoi. The potential for some of these parasites to be used as biological tags for stock identification of M. bonaci is discussed.

The metazoan parasite communities of the Argentinean sandperch Pseudopercis semifasciata (Pisces: Perciformes) and their use to elucidate the stock structure of the host

Parasitology ◽  
2009 ◽  
Vol 136 (10) ◽  
pp. 1209-1219 ◽  
Author(s):  
J. T. TIMI ◽  
A. L. LANFRANCHI
Keyword(s):  
Indicator Species ◽  
Site Fidelity ◽  
New Host ◽  
Parasite Communities ◽  
Limited Dispersal ◽  
High Site ◽  
Discriminant Analyses ◽  
Parasite Assemblages ◽  
New Host Records ◽  
Biological Tags

SUMMARYThe use of parasites as biological tags allowed the identification of 3 stocks of Argentinean sandperch, Pseudopercis semifasciata (Cuvier), in the Argentine Sea. A total of 100 specimens caught in 3 zones: Villa Gesell (37°15′S, 57°23′W; n=20), Miramar (38°03′S, 57°30′W–38°44′S, 58°44′W; n=30) and Península Valdes (42°00′–42°45′S; n=50), were examined and 28 parasite species were found, 15 of them being new host records. Both univariate and multivariate analyses identified discrete stocks in each zone. The observed differences were not related to the host size or sex. Each locality was characterized by its own indicator species. Villa Gesell was typified by unidentified cestode plerocercoids, Corynosoma cetaceum and Hysterothylacium sp., Miramar by Heterosentis sp. and Pseudoterranova sp. and Península Valdes by A. simplex s.l. Fishes from both northern localities shared gnathiid pranizae, Corynosoma australe and Grillotia sp. as indicators, whereas Miramar and Península Valdes shared only Trifur tortuosus. The most distant localities showed no indicator species in common. Discriminant analyses of parasite assemblages agreed with populational comparisons in identifying the same set of biological tags, whereas some differences in the identity of indicator species were obtained by similarity analysis. However, the 3 approaches were congruent in identifying Grillotia sp., C. australe and C. cetaceum as indicators of northern localities, and A. simplex s.l. as related to Patagonian waters. Differences among zones could be enhanced by the sedentary habits, limited dispersal and high site fidelity of P. semifasciata, and their spawning in rocky outcrops, which are isolated environments.

Concordance of Glucose-Based and of HbA1c-Based Diagnoses of Diabetes in Patients with Peripheral Artery Disease—A Comparison between Two Age Groups

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 1522-P
Author(s):  
CHRISTOPH H. SAELY ◽  
ALEXANDER VONBANK ◽  
CHRISTINE HEINZLE ◽  
DANIELA ZANOLIN ◽  
BARBARA LARCHER ◽  
...  
Keyword(s):  
Peripheral Artery Disease ◽  
Age Groups ◽  
Peripheral Artery ◽  
Artery Disease ◽  
Two Age Groups

Unemployment as an indicator of economic security in the employment sector: A regional dimension

2020 ◽  
Vol 16 (4) ◽  
pp. 715-729
Author(s):  
T.N. Savina
Keyword(s):  
Comparative Analysis ◽  
Age Groups ◽  
National Development ◽  
Federal District ◽  
Economic Security ◽  
Employment Policy ◽  
Multivariate Statistical ◽  
Band Theory ◽  
The Republic ◽  
The Impact

Subject. To achieve a high level of economic security is a key priority of national development. Employment reveals one of the most important aspects of social development of the individual that is associated with his or her needs satisfaction in the sphere of employment and is boon to economic security. Objectives. The purpose of the study is to show the impact of unemployment on economic security in employment. Methods. I apply such scientific methods as dialectical, historical and logical unity, structural and functional analysis, traditional techniques of economic analysis and synthesis. The methods of multivariate statistical and comparative analysis serve as a methodological basis of the study. To determine the indicator of unemployment, I use the band theory. Results. I underpin the growing role of employment in ensuring economic security. The paper presents a comprehensive assessment of the unemployment status and a comparative analysis of the indicator in the Republic of Mordovia, the Volga Federal District, and the Russian Federation as a whole. I identify trends in the average duration of unemployment, show the distribution of unemployed by level of education and age groups. Conclusions. The average annual unemployment rate in the Republic of Mordovia is lower than in Russia and the Volga Federal District. The findings may be useful for public authorities to substantiate their employment policy at both macro- and meso-levels, for designing programs and strategies for socio-economic development of regions and the social security doctrine, as well as in practical activities of employment services.

Foundation for the Prevention and Pathological Aspects of Diseases of the Mucous Membranes of the Oral Cavity (Review)

2020 ◽  
Vol 3 (6) ◽  
pp. 8-11
Author(s):  
Bakaev Zh. N.
Keyword(s):  
Oral Cavity ◽  
Rural Women ◽  
Rural Areas ◽  
Southern China ◽  
Age Groups ◽  
Urban Residents ◽  
Volgograd Region ◽  
Mucous Membranes ◽  
The Russian Federation ◽  
Two Age Groups

According to the authors, the prevalence of SOPR diseases is from 3 to 20%.In a study of 1573 residents of southern China in two age groups who use tobacco and alcohol, the incidence of SOPR was higher among men living in rural areas compared to urban residents. Among women aged 35-44 years, the incidence was higher in urban women, and in the 65-77-year-old group in rural women. In the course of studies in Brazil, among 335 patients older than 60 years, 646 diseases of the SOPR were identified. Similar results were obtained in the analysis of SOPR diseases in the Volgograd region of the Russian Federation

Internet Sex discourse and porn viewing by Arab adolescents: The overt and the covert and its impact on their sexual education and behavior (Preprint)

2018 ◽  
Author(s):  
Anat Gesser-Edelsburg ◽  
Munawar Abed Elhadi
Keyword(s):  
Age Groups ◽  
Sexual Education ◽  
The Internet ◽  
Traditional Values ◽  
Sexual Discourse ◽  
Cultural Taboos ◽  
Internet Sex ◽  
And Behavior ◽  
Depth Interviews ◽  
Two Age Groups

BACKGROUND Due to the religious proscription, it was found that Arab youths acquire information and view pornography secretly. The internet exposes them to contents that contradict religious and cultural taboos. There are few studies about viewing habits of sexual contents among Arab adolescents and about the way they discuss sexuality. OBJECTIVE to characterize the barriers and difficulties that prevent sexual discourse in Arab society and enable pornography viewing, according to the perceptions of adolescents and mothers. METHODS phenomological qualitative research methods, in-depth interviews with 40 participants. 20 Arab adolescents, sampled by two age groups: 14-16 and 16-18. In addition, 20 mothers of adolescents from both sexes were interviewed. RESULTS The findings indicate that mothers “turn a blind eye” to porn viewing and sexual activity by boys, versus a sweeping prohibition and denial of such behavior by girls. The boys reported viewing porn routinely, whereas girls denied doing so, but admitted that their girlfriends watched porn. The study also found that the boys have guilt feelings during and after the viewing as a result of the clash between modernity and traditional values. CONCLUSIONS It is necessary to find a way to encourage a significant sexual discourse to prevent the violent consequences of its absence in Arab society. A controlled, transparent and critical sexual discourse could help youth make more informed decisions concerning the search for sexual contents, porn viewing and sexual behavior.

scholarly journals A Reduced Dose Whole Virion Aluminum Adjuvanted Seasonal Influenza Vaccine Is Immunogenic, Safe, and Well Tolerated in Pediatric Patients

Viruses ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 500
Author(s):  
Zoltan Vajo ◽  
Gergely Balaton ◽  
Peter Vajo ◽  
Peter Torzsa
Keyword(s):  
Pediatric Patients ◽  
Geometric Mean ◽  
Age Groups ◽  
Aluminum Phosphate ◽  
Vaccine Virus ◽  
Serious Adverse Events ◽  
Reduced Dose ◽  
Viral Hemagglutinin ◽  
Virus Strains ◽  
Two Age Groups

Background: Data suggest that pediatric patients might react differently to influenza vaccination, both in terms of immunity and side effects. We have recently shown that using a whole virion vaccine with aluminum phosphate adjuvants, reduced dose vaccines containing 6 µg of viral hemagglutinin (HA) per strain are immunogenic, and well tolerated in adult and elderly patients. Here we show the results of a multicenter clinical trial of pediatric patients, using reduced doses of a new, whole virion, aluminum phosphate adjuvanted vaccine (FluArt, Budapest, Hungary). Methods: A total of 120 healthy volunteers were included in two age groups (3–11 years, receiving 3 µg of HA per strain, and 12–18 years, receiving 6 µg of HA per strain). We used hemagglutination inhibition testing to assess immunogenicity, based on EMA and FDA licensing criteria, including post/pre-vaccination geometric mean titer ratios, seroconversion and seropositivity rates. Safety and tolerability were assessed using CHMP guidelines. Results: All subjects entered the study and were vaccinated (ITT population). All 120 subjects attended the control visit on Day 21 (PP population). All immunogenicity licensing criteria were met in both age groups for all three vaccine virus strains. No serious adverse events were detected and the vaccine was well tolerated by both age groups. Discussion: Using a whole virion vaccine and aluminum phosphate adjuvants, a reduction in the amount of the viral hemmaglutinin is possible while maintaining immunogenicity, safety and tolerability in pediatric and adolescent patients.

scholarly journals How (not) to cross a boundary: Crosslinguistic influence in simultaneous bilingual children's event construal

2021 ◽  
pp. 1-13
Author(s):  
Helen Engemann
Keyword(s):  
Production Process ◽  
Age Groups ◽  
Boundary Crossing ◽  
Bilingual Children ◽  
Activation Patterns ◽  
Motion Event ◽  
Co Activation ◽  
Crosslinguistic Influence ◽  
Event Construal ◽  
Two Age Groups

Abstract Simultaneous bilingual children sometimes display crosslinguistic influence (CLI), widely attested in the domain of morphosyntax. It remains less clear whether CLI affects bilinguals’ event construal, what motivates its occurrence and directionality, and how developmentally persistent it is. The present study tested predictions generated by the structural overlap hypothesis and the co-activation account in the motion event domain. 96 English–French bilingual children of two age groups and 96 age-matched monolingual English and French controls were asked to describe animated videos displaying voluntary motion events. Semantic encoding in main verbs showed bidirectional CLI. Unidirectional CLI affected French path encoding in the verbal periphery and was predicted by the presence of boundary-crossing, despite the absence of structural overlap. Furthermore, CLI increased developmentally in the French data. It is argued that these findings reflect highly dynamic co-activation patterns sensitive to the requirements of the task and to language-specific challenges in the online production process.

Effects of laser assisted hatching on IVF/ICSI cycles in two age groups

2012 ◽  
Vol 98 (3) ◽  
pp. S284
Author(s):  
B. Amorocho ◽  
G. Calderón ◽  
M. Mollá ◽  
D. Gumbao ◽  
J. Marcos ◽  
...  
Keyword(s):  
Age Groups ◽  
Assisted Hatching ◽  
Two Age Groups

Comparison of clinical characteristics of tuberculosis between two age groups at an Italian Tertiary Hospital

Infection ◽  
2015 ◽  
Vol 43 (3) ◽  
pp. 361-366 ◽  
Author(s):  
Elda Righi ◽  
Paola Della Siega ◽  
Maria Merelli ◽  
Nadia Castaldo ◽  
Anna Beltrame ◽  
...  
Keyword(s):  
Clinical Characteristics ◽  
Age Groups ◽  
Tertiary Hospital ◽  
Two Age Groups

scholarly journals Cats in the forest: predicting habitat adaptations from humerus morphometry in extant and fossil Felidae (Carnivora)

Paleobiology ◽  
10.1666/12001 ◽  
2013 ◽  
Vol 39 (3) ◽  
pp. 323-344 ◽  
Author(s):  
Carlo Meloro ◽  
Sarah Elton ◽  
Julien Louys ◽  
Laura C. Bishop ◽  
Peter Ditchfield
Keyword(s):  
Morphological Variability ◽  
Olduvai Gorge ◽  
Environmental Predictors ◽  
Linear Measurements ◽  
Multivariate Statistical ◽  
Linear Discriminant ◽  
Related Group ◽  
Discriminant Analyses ◽  
The Stability ◽  
The Relationship

Mammalian carnivores are rarely incorporated in paleoenvironmental reconstructions, largely because of their rarity within the fossil record. However, multivariate statistical modeling can be successfully used to quantify specific anatomical features as environmental predictors. Here we explore morphological variability of the humerus in a closely related group of predators (Felidae) to investigate the relationship between morphometric descriptors and habitat categories. We analyze linear measurements of the humerus in three different morphometric combinations (log-transformed, size-free, and ratio), and explore four distinct ways of categorizing habitat adaptations. Open, Mixed, and Closed categories are defined according to criteria based on traditional descriptions of species, distributions, and biome occupancy. Extensive exploratory work is presented using linear discriminant analyses and several fossils are included to provide paleoecological reconstructions.We found no significant differences in the predictive power of distinct morphometric descriptors or habitat criteria, although sample splitting into small and large cat guilds greatly improves the stability of the models. Significant insights emerge for three long-canine cats:Smilodon populator,Paramachairodus orientalis, andDinofelissp. from Olduvai Gorge (East Africa).S. populatorandP. orientalisare both predicted to have been closed-habitat adapted taxa. The false “sabertooth”Dinofelissp. from Olduvai Gorge is predicted to be adapted to mixed habitat. The application of felid humerus ecomorphology to the carnivoran record of Olduvai Gorge shows that the older stratigraphic levels (Bed I, 1.99–1.79 Ma) included a broader range of environments than Beds II or V, where there is an abundance of cats adapted to open environments.

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