An Investigation of the Life History and Propagation of the Sockeye Salmon (Oncorhynchus nerka) at Cultus Lake, British Columbia. No. 5. The Life history cycle of the 1926 year class with Artificial Propagation involving the liberation of free-swimming fry.

1936 ◽  
Vol 2 (3) ◽  
pp. 311-333
Author(s):  
R. E. Foerster
Keyword(s):  
Life History ◽  
Sockeye Salmon ◽  
Age Groups ◽  
Complete Recovery ◽  
First Year ◽  
Commercial Fishing ◽  
Free Swimming ◽  
Rates Of Growth ◽  
True Values ◽  
Two Age Groups

From 1,949 sockeye salmon females in the run of 1926, 8,770,000 eggs were available. Of these approximately 1,174,000 (13.4%) were lost through 261 females dying before stripping. Since part of this loss was undoubtedly due to conditions imposed by the investigation, a second set of percentages based on egg content of the fish stripped is given. The true values lie between the two. Fry liberated in the spring of 1927 amounted to 5,916,500 (67.5% of total available eggs and 77.9% of eggs available for stripping). From these there migrated to sea 336,173 yearlings and 8,000 two-year-olds, representing 3.9% of total eggs and 4.5% of eggs available for stripping, and but 5.8% of total fry liberated. The yearling seaward migrants, which showed no change in size as the migration proceeded, were appreciably smaller than those in the 1927 migration, thus exhibiting an inverse relationship to the presumed populations in the lake during the first year. Scale-ring counts for the two age groups were made and rates of growth computed from scale measurements. Returning adults consisted of: 32 group (1929)—9 males; 42 group (1930)—2,327 males + 5,300 females; 52 group (1931)—149 females, a total of 7,785 adults—representing 0.09% of total eggs and 2.3% of seaward migrants. From 99,700 migrants marked by the removal of the adipose and both ventral fins, 1,340 adults (1.34%) returned to Cultus lake and 341 (0.34%) were taken in commercial fishing areas. The latter are not considered a complete recovery.

Overwintering, soil distribution and phenology of Childers canegrub, Antitrogus parvulus (Coleoptera: Scarabaeidae) in Queensland sugarcane

2003 ◽  
Vol 93 (4) ◽  
pp. 307-314 ◽  
Author(s):  
D.P. Logan ◽  
P.G. Allsopp ◽  
M.P. Zalucki
Keyword(s):  
Life Cycle ◽  
Soil Profile ◽  
Age Groups ◽  
Late Summer ◽  
Shallow Depth ◽  
First Year ◽  
First Instar ◽  
Autumn And Winter ◽  
Soil Distribution ◽  
Two Age Groups

AbstractIn this study, the question of whether Childers canegrub, Antitrogus parvulus (Britton) overwinters in the subsoil was addressed. Irrigated fields of sugarcane were sampled during a 2-year period near Bundaberg in southern Queensland. Antitrogus parvulus overwintered as second and third instars at each of three sites. During autumn and winter third instars of different allochronic (separated in age by 12 months) populations occurred together and could not be readily separated. Field-collected third instars were reared on ryegrass and separated into two age groups based on the date of pupation. Third instars in the first year of their life cycle (young third instars) remained at shallow depth (100–200 mm) and did not overwinter in the subsoil as once thought. Minimum temperatures during winter were 13–16°C and did not prevent young third instars from feeding and gaining weight. Third instars in their second and final year moved downwards from late summer and pupated in the subsoil at 293–425 mm in spring. General phenology was as previously reported with first instar larvae occurring from January until April, second instars from January until November and third instar larvae throughout the year. Prepupae and pupae were found between October and December and adults occurred in soil during November and January. Batches of eggs occurred at a mean depth of 350 mm. First and second instars occurred predominantly at relatively shallow (100–200 mm) depths in the soil profile. All stages tended to be most common under rows of sugarcane rather than in the interrow.

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

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 Five reasons COVID-19 is less severe in younger age groups

2020 ◽  
Author(s):  
Paul W Turke
Keyword(s):  
Life History ◽  
Life History Theory ◽  
Age Of Onset ◽  
Age Groups ◽  
Medical Community ◽  
System Function ◽  
The Third ◽  
Immune System Function ◽  
Age Related ◽  
Younger Age

Abstract The severity of COVID-19 is age-related, with the advantage going to younger age groups. Five reasons are presented. The first two are well-known, are being actively researched by the broader medical community, and therefore are discussed only briefly here. The third, fourth, and fifth reasons derive from evolutionary life history theory, and potentially fill gaps in current understanding of why and how young and old age groups respond differently to infection with SARS-CoV-2. Age of onset of generalized somatic aging, and the timing of its progression, are identified as important causes of these disparities, as are specific antagonistic pleiotropic tradeoffs in immune system function.

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.

Caudal Extension Graft of the Lower Lateral Cartilage: Technique and Aesthetic and Functional Results

2021 ◽  
Author(s):  
Juliano de Oliveira Sales ◽  
Wolfgang Gubisch ◽  
Rodrigo Ribeiro Ferreira Duarte ◽  
Aline Souza Costa Teixeira Moreno ◽  
Felipe Marques de Oliveira ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Age Groups ◽  
Functional Results ◽  
First Year ◽  
Lateral Cartilage ◽  
Lower Lateral Cartilage ◽  
Alar Retraction ◽  
Outcomes Evaluation ◽  
A New Technique ◽  
Extension Graft

AbstractHere we describe a new technique to deal with alar retraction, a highly undesirable imperfection of the nose. The procedure involves placing a caudal extension graft below the vestibular portion of the lower lateral cartilage (LLC) after its detachment from the vestibular skin. The graft is fixed to the cartilage and, subsequently, to the vestibular tissue. The present retrospective study included 20 patients, 11 females and 9 males, with a mean age of 28.90 years. Follow-up ranged from 1 to 18 months. Surgery improved alar notching to a smoother dome shape and nostril exposure was reduced in every patient. The caudal extension graft of the LLC contributed to rise in overall patient satisfaction, as revealed by the postoperative increase of the Rhinoplasty Outcomes Evaluation (ROE) mean score from 40.0 to 79.17 (p < 0.0001). It also contributed to and improved functional outcomes, as indicated by the decrease of the Nasal Obstruction Symptom Evaluation (NOSE) mean score from 52.75 to 13.25 (p = 0.0001). Sex did not affect the mean ROE and NOSE scores. Thus, increased patient satisfaction measured by the ROE is present in both sexes and at both age groups but it is better detected in the first year after surgery. Functional improvements analyzed with NOSE are best detected in patients aged ≥ 30 years and in follow-ups of 11 months. The caudal extension graft of the LLC technique described herein effectively and safely corrects alar retraction and the collapse of the nasal valve while filling the soft triangle.

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
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