The relation between food, age and flight in the Rutherglen bug, Nysiusm vinitor (Hemiptera : Lygaeidae)

1973 ◽  
Vol 21 (3) ◽  
pp. 427 ◽  
Author(s):  
M Kehat ◽  
M Wyndham
Keyword(s):  
Emerging Adults ◽  
Adult Stage ◽  
Egg Laying ◽  
Flight Activity ◽  
Causal Factors ◽  
Adverse Conditions ◽  
Flight Response ◽  
Species Displacement ◽  
Food Consumed

The relationships between food, egg-laying, age, and flight were studied with the aim of providing a better understanding of the causal factors of displacement flights in N. vinitor. The distinction in N. vinitor between "fliers" and "non-fliers" is, most probably, a reflection of the environment. Thus, an increased proportion of individuals taking off and of distinctively prolonged flights were a response to inadequate food either during the nymphal or adult stage. Shortage of water during the adult stage resulted also in increased flight activity. The quality of the food consumed by the nymphs rather than its quantity affected the behavioural flight response of emerging adults. Immature females, whether virgin or not, had different flight responses from egg-laying females and are probably the true migrants of the species. Displacement flights in N. vinitor are always triggered by adverse conditions in the nymphal or adult stage, but the type of flight changes as females become older; flights are migratory in the immature females and dispersive in the mature ones.

INFLUENCE OF BIOSTIMULANTS ON THE IMMUNE PROTECTION OF CHICKENS

2019 ◽  
Keyword(s):  
Growth And Development ◽  
Digestive System ◽  
Great Influence ◽  
Egg Laying ◽  
Growth Spurt ◽  
Immune Protection ◽  
Internal Organs ◽  
State Growth ◽  
Active Peak

Among the animals of different species chickens react in greater numbers and more noticeable to a va-riety of growth biostimulators. There are great improvements on their general state, growth spurts and development of internal organs is quicker when they are injected with small portions. Such stimulation has a great influence not only on growth and development of chickens in their first period of life but also on health and productivity later on. The most active peak of reaction is when chicken is two months old. Their internal organs, especially the digestive system, develop earlier, their genitals appear earlier and they begin egg-laying much earlier too, when chickens are being fed those biostimulants. Slaughter meat yield becomes more and quality of meat improves with the influence of stimulators. A major disease pre-vention and healing effect can be reached, since most of the biostimulants raise immune system and re-sistance of the organism. It can be the only thing to justify their usage on animals. Tests show that the most typical growth spurt of birds is from fifteen to twenty percent in normal conditions. Growth spurts are also accompanied with the rise of resistance to different infections and activation of different physio-logical processes. Growth spurts can be twice or more than written here, but those spurts are usually short-timed and often accompanied with the dysfunction of different organs

scholarly journals iBikeSafe: A Multi-Parameter System for Monitoring, Evaluation and Visualization of Cycling Paths in Smart Cities Targeted at Cycling Adverse Conditions

Smart Cities ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 1058-1086
Author(s):  
Franklin Oliveira ◽  
Daniel G. Costa ◽  
Luciana Lima ◽  
Ivanovitch Silva
Keyword(s):  
Urban Areas ◽  
Smart Cities ◽  
Large City ◽  
Health And Safety ◽  
Parameter System ◽  
Urban Centers ◽  
Adverse Conditions ◽  
Last Mile ◽  
Real Scenario

The fast transformation of the urban centers, pushed by the impacts of climatic changes and the dramatic events of the COVID-19 Pandemic, will profoundly influence our daily mobility. This resulted scenario is expected to favor adopting cleaner and flexible modal solutions centered on bicycles and scooters, especially as last-mile options. However, as the use of bicycles has rapidly increased, cyclists have been subject to adverse conditions that may affect their health and safety when cycling in urban areas. Therefore, whereas cities should implement mechanisms to monitor and evaluate adverse conditions in cycling paths, cyclists should have some effective mechanism to visualize the indirect quality of cycling paths, eventually supporting choosing more appropriate routes. Therefore, this article proposes a comprehensive multi-parameter system based on multiple independent subsystems, covering all phases of data collecting, formatting, transmission, and processing related to the monitoring, evaluating, and visualizing the quality of cycling paths in the perspective of adverse conditions that affect cyclist. The formal interactions of all modules are carefully described, as well as implementation and deployment details. Additionally, a case study is considered for a large city in Brazil, demonstrating how the proposed system can be adopted in a real scenario.

The perspective of emerging adults with Down syndrome – On quality of life and well-being

2021 ◽  
pp. 174462952110300
Author(s):  
Kjersti Wessel Jevne ◽  
Marit Kollstad ◽  
Anne-Stine Dolva
Keyword(s):  
Quality Of Life ◽  
Down Syndrome ◽  
Emerging Adults ◽  
Communication Technology ◽  
Well Being ◽  
Subjective Well Being ◽  
Safe Place ◽  
Social Leisure ◽  
Information And Communication

This study explored the thoughts of emerging adults with Down syndrome on quality of life and subjective well-being. Eight 22-year-olds participated in interviews. Data was analysed with content analysis. Four themes were revealed: Work based on interest and capability, having an active and social leisure life, a safe place to live and the use of information and communication technology. Two context related patterns were identified showing that quality of life and subjective well-being were related to individualised support to enhance independency in work, social leisure and place of living. Knowledge of their perception of independency and their awareness of needing customised help and support is valuable. This study supports the proposed emerging Quality of Life Supports Paradigm in the field of intellectual disabilities, which integrates key concepts of quality of life and supports.

scholarly journals Gastronomic Metaphor in the Russian Pre-Revolutionary Parliamentary Discourse (based on Speeches by Right-Wing Deputies)

2020 ◽  
pp. 25-37 ◽  
Author(s):  
S. A. Gromyko
Keyword(s):  
Political Activity ◽  
Right Wing ◽  
Political Struggle ◽  
Digestion Process ◽  
Negative Appraisal ◽  
Quality Of Food ◽  
Semantic Aspect ◽  
Food Consumed

The results of a study of the semantics and functioning of the gastronomic metaphor in the Russian parliamentary discourse are presented in the article. Based on the material of the parliamentary discussion of the early twentieth century, the features of the functioning of metaphors, which are based on the associative similarity between political activity and food, the eating process are established. The author dwells in detail on the use of gastronomic metaphors by nationalist deputies in the course of discussions unfolding at meetings of the State Duma. The results of the classification of metaphors identified on the indicated material belonging to the “Food” sphere are presented. It was established that they can be divided into three groups according to the figurative component: metaphors with the literal meaning of absorbing or eating something, metaphors with the value of the quality of food consumed, metaphors with the value of the digestion process. It is concluded that in the semantic aspect, the gastronomic metaphor in the Russian parliamentary discourse expresses a persistent negative assessment, since it is associated with the semantics of extermination, destruction, deception ( to give a stone instead of bread ), abnormal physiological phenomena (hunger, overeating, indigestion). It is emphasized that in the functional aspect, the negative appraisal of the gastronomic metaphor made it possible to use it in parliamentary discourse as a means of political struggle with the aim of lowering the political assets of opponents.

scholarly journals The Effect of Age and Genotype on Quality of Eggs in Brown Egg‑Laying Hybrids

2019 ◽  
Vol 67 (2) ◽  
pp. 407-414 ◽  
Author(s):  
Adam Kraus ◽  
Lukáš Zita
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Shape Index ◽  
Egg Laying ◽  
Average Weight ◽  
Eggshell Thickness ◽  
External Quality ◽  
Technological Value ◽  
Effect Of Age

The aim was to assess the internal and external quality of consumer eggs of egg‑laying hens of two selected genotypes depending on their age. All of these hens were kept in enriched cages. There were compared eggs from Hy‑Line Brown and ISA Brown hens at the age from 36 to 64 weeks. In total, 3840 eggs from 300 hens were evaluated. Quality of eggs was determined by their technological value. Statistically significant interactions (P = 0.001) between age and genotype were found in all evaluated parameters except for the yolk colour (P = 0.044), whereas there was not found interaction (P = 0.072) between age and genotype in eggshell strength. The significant effect of hens’ age was found in all evaluated parameters, with the only exception of the yolk colour. The results showed that the average weight of eggs, eggshell, albumen and yolk increased with the age. Also the eggshell proportion, its colour and yolk index values ​​increased, whereas the egg shape index, eggshell thickness and strength, albumen proportion, Haugh units, the albumen and the yolk index decreased. Statistically significant effect of the genotype was found in all evaluated parameters except for the yolk index. When comparing both genotypes, the eggs from ISA Brown hens had a better quality. The trend of deteriorating egg quality with age was confirmed.

scholarly journals Evaluation of crushing grains of different cultures by bucket elevator

2015 ◽  
Vol 5 (1) ◽  
pp. 244-249
Author(s):  
Шатохин ◽  
Ivan Shatokhin ◽  
Парфенов ◽  
Aleksey Parfenov
Keyword(s):  
Relative Increase ◽  
Physical Damage ◽  
Grain Yields ◽  
Adverse Conditions ◽  
Grain Crushing ◽  
Grain Handling ◽  
Bucket Elevator ◽  
Processing Line ◽  
Different Cultures

One of the factors ensuring sufficient grain is the use of high quality seeds for sowing and harvest preservation at all stages of production. In this case, important value has such indicator of quality of grain, as its damage. According to many researchers grain passing through the machines during post-harvest processing, often has more physical damage than the incoming for processing. When used for sowing seeds is mechanically damaged grain yields is sharply reduced. Under adverse conditions 1 % of injured seeds leads to lower grain yields for 30-50 kg / ha. In this connection, we evaluated the quality of grain handling in terms of crushing of various cultures on the production line of winnowing machine ЗАВ-40 in LLC "Fakel" of Petropavlovsky district of the Voronezh region. The results of crushing grain in bucket elevators during its processing at grain cleaning unit ЗАВ-40 are presented. Also the results of the relative increase in grain crushing in bucket elevators during its processing at grain cleaning unit ЗАВ-40 are presented. It has been established that the considered processing line of postharvest processing of grain should be improved by reducing the number of elevators, or, in extreme cases, opportunities to modernize the elevator in order to reduce damage to the grain should be sought. Moreover, these activities will be particularly significant in the processing of grain and seeds with low strength of the casing, which can be attributed, and sunflower. This fact suggests that the farms must have grain cleaning units not only for the processing of food and seed grain, but also sunflower.

scholarly journals Comparative analysis of the ftness of Drosophila virilis lines contrasting in response to stress

2019 ◽  
Vol 22 (8) ◽  
pp. 1090-1096
Author(s):  
E. K. Karpova ◽  
I. Yu. Rauschenbach ◽  
N. E. Gruntenko
Keyword(s):  
Heat Stress ◽  
Natural Populations ◽  
Population Level ◽  
Stress Reaction ◽  
Egg Laying ◽  
Drosophila Virilis ◽  
Gonadotropic Hormone ◽  
Adverse Conditions ◽  
Low Intensity ◽  
Response To Stress

One of the crucial elements contributing to the adaptation of organisms to unfavorable environmental conditions is the reaction of stress. The study of its genetic control and role in adaptation to unfavorable conditions are of special interest. The juvenile hormone (JH) acts as a gonadotropic hormone in adult insects controlling the development of the ovaries, inducing vitellogenesis and oviposition. It was shown that a decrease in JH degradation in individuals reacting to adverse conditions by stress reaction (R­individuals) causes delay in egg laying and seems to allow the population to “wait out” the unfavorable conditions, thereby contributing to the adaptation at the population level. However, monitoring natural populations of D. melanogaster for the capability of stress reaction demonstrated that they have a high percentage of individuals incapable of it (NR­individuals). The study of reproductive characteristics of R­ and NR­individuals showed that under normal conditions R­individuals have the advantage of procreating offspring. Under unfavorable conditions, if the stressor is intense enough, NR­individuals die, but if its intensity is low, then they, unlike R­individuals, continue to produce offspring. Based on these data, it was hypothesized that the balance of R­ and NR­alleles in the population ensures its adaptation under frequent stresses of low intensity. To verify the hypothesis by an experiment, the ftness characteristics (lifespan, fecundity) of the R and NR lines of D. virilis were studied under normal conditions and under regular heat stress of various frequency.

scholarly journals Long-term effects of choline on productive performance and egg quality of brown-egg laying hens

2013 ◽  
Vol 92 (7) ◽  
pp. 1824-1829 ◽  
Author(s):  
Q.H. Zhai ◽  
X.F. Dong ◽  
J.M. Tong ◽  
Y.M. Guo ◽  
Y.E. Bao
Keyword(s):  
Laying Hens ◽  
Egg Quality ◽  
Egg Laying ◽  
Productive Performance ◽  
Long Term Effects

scholarly journals Influence of grinding size of the main cereal of the diet on egg production and eggs quality of brown egg laying hens from 33 to 65 weeks of age

2018 ◽  
Vol 97 (7) ◽  
pp. 2506-2515 ◽  
Author(s):  
J. Herrera ◽  
B. Saldaña ◽  
L. Cámara ◽  
J.D. Berrocoso ◽  
G.G. Mateos
Keyword(s):  
Egg Production ◽  
Laying Hens ◽  
Egg Laying ◽  
Eggs Quality

The Electric Hookup

2020 ◽  
pp. 62-81
Author(s):  
Brenna Helm ◽  
Thomas Vander Ven ◽  
Howard T. Welser
Keyword(s):  
Emerging Adults ◽  
Relational Patterns ◽  
Sexual Predators ◽  
Digital World ◽  
Social Risks ◽  
Dating Apps ◽  
The Social ◽  
Hookup Culture ◽  
Potential Risks

Social critics claim that emerging adults are subjecting themselves and one another to a variety of risks through the use of mobile dating and hookup applications, or “apps.” These narratives emphasize concerns about authenticity, the threat of sexual predators, and changing expectations about the nature and emotional intimacy of relationships. The use of apps among emerging adults presents risks for individual users and for social relational patterns, both in the digital world and “on the ground.” In this chapter, the authors analyze the theoretical and empirical risks of mediating hookup culture through the use of mobile dating apps and discuss the potential risks to app users, such as harassment, cyberstalking, and sexual violence. Next, the authors explore the social risks pertaining to authenticity, trust, the quality of relationships, and conflicting understandings of social norms and acceptable behaviors. Finally, the chapter concludes with suggestions for future directions in research related to the use of hookup apps and its related risks.

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