Ultrastructure of antennal sensilla of <i>Cistogaster globosa</i> (Fabricius, 1775) и <i>Cylindromyia interrupta</i> (Meigen, 1824) (Diptera: Tachinidae)

The paper describes the ultrastructure of antennal sensilla among two species of tachinid flies (Diptera: Tachinidae). For this purpose, the antennae of the adult flies Cistogaster globosa (Fabricius, 1775) and Cylindromyia interrupta (Meigen, 1824) were examined using a scanning electron microscope (SEM). The choice of antennae as structures for studying the receptor organs is explained by the fact that among insects they are the main site of sensilla localization. There is also a high degree of oligomerization of the antenna segments, which determines the concentration of sensilla on the apical segment in the short-tied circular-seam Diptera (Brachycera-Cyclorrhapha), to which the family Tachinidae also belongs. Most of antennal sensilla are morphologically independent elementary sensory formations. Each type of such sensory formations is responsible for one or more functions. Three types of sensilla were identified (trichoid, basiconic and coeloconical) as a result of the analysis of two tachinid species antennae. Trichoid and basiconic sensilla were found among the tachinid fly Cistogaster globosa, and trichoid and coeloconical sensilla were found among Cylindromyia interrupta. A large number of microtrichia was also found on the antenna elements in both tachinid species. Original SEM-images of the ultrastructural organization of the tachinid sensory system are provided; their localization and number per unit area are shown. The obtained data expand our understanding of the role of these morphological structures in the orientation of tachinid fly in the implementation of the reproductive strategy: search for a sexual partner, search for a potential host habitat, and search for a host.

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Fine Morphology of Antennal and Ovipositor Sensory Structures of the Gall Chestnut Wasp, Dryocosmus kuriphilus

Insects ◽

10.3390/insects12030231 ◽

2021 ◽

Vol 12 (3) ◽

pp. 231

Author(s):

Milos Sevarika ◽

Marco Valerio Rossi Stacconi ◽

Roberto Romani

Keyword(s):

Ultrastructural Organization ◽

Antennal Sensilla ◽

Dryocosmus Kuriphilus ◽

Transmission Electron ◽

Significant Damage ◽

Sensory Structures ◽

Host Plant Location ◽

Oviposition Sites ◽

Fine Morphology

Dryocosmus kuriphilus is a gall-inducing insect, which can cause significant damage on plants of the genus Castanea Mill., 1754. Antennae and ovipositor are the main sensory organs involved in the location of suitable oviposition sites. Antennal sensilla are involved in the host plant location, while ovipositor sensilla assess the suitability of the ovipositional bud. On both organs, diverse sensillar organs are present. Here, the distribution and ultrastructural organization of the sensilla were investigated by scanning and transmission electron microscopy. The antennae of D. kuriphilus are filiform and composed of 14 antennomeres, with the distal flagellomere bearing the highest number of sensilla. On the antennae, 6 sensilla types were found; sensilla chaetica, campaniformia, coeloconica-I, coeloconica-II, trichoidea and placoidea. The sensilla placoidea and trichoidea were the most abundant types. On the external walls of the ovipositor, gustatory and mechanoreceptive sensilla were observed. Internally, the egg channel hosted two additional sensory structures. The putative functional role of each sensilla in the context of insect’s ecology is discussed as well as the ovipositional mechanism used by this insect.

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INFLUENCE OF BACTRIO-CARRY IN THE FAMILY ON THE COURSE OF ATOPIC DERMATITIS IN A CHILD

"Medical & pharmaceutical journal "Pulse" ◽

10.26787/nydha-2686-6838-2021-23-5-114-119 ◽

2021 ◽

pp. 114-119

Author(s):

Vasileva E.A. ◽

Kuyarov A.A. ◽

Kuyarov A.V.

Keyword(s):

Atopic Dermatitis ◽

Secondary Infection ◽

Family Members ◽

Upper Respiratory Tract ◽

Epidermal Barrier ◽

The Family ◽

Mucous Membranes ◽

High Degree ◽

Nose And Throat

The pathogenesis of atopic dermatitis (AD) is complex, and at present a unified concept of the development of the disease has not been formed. At the heart of pathogenesis, there is a complex interaction of numerous factors, such as genetic predisposition, dysfunction of the autonomic nervous system and the epidermal barrier. Previously, it has been proven that a high microbial contamination of the affected areas helps to maintain inflammation and aggravates skin dysfunction as a result of chronic inflammation, and favorable factors appear for the attachment of a secondary infection. However, little attention has been paid to dysfunctions of the epidermal barrier, the role of violations of the quantitative and qualitative composition of the microbiota in the development of AD, and this issue remains relevant at the present time. The aim of this study was to assess the effect of the carrier of bacteria on the mucous membranes of the upper respiratory tract in family members on the course of atopic dermatitis in a child. A bacteriological examination of the mucous membranes of the nose and throat was carried out in 34 children with AD and members of their families (74 people). When examining the mucous membranes of the nose and throat in family members of children with AD, it was found that the microflora isolated from family members in more than half of the cases has an increased potential for pathogenicity with a high degree of contamination (CFU lg 3), which forms an increased bacteriological load on the child. The tendency of bacterial carriage was revealed, contributing to the formation in the family of a permanent persistence of microflora with a high potential for pathogenicity. Asymptomatic carriage of bacteria forms an additional epidemiological load on the child, affects the severity of AD and is a risk factor in the development of secondary infection of the skin.

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Self-concept and Family: A study on Greek secondary school students

Journal of Contemporary Issues in Education ◽

10.20355/c5b01s ◽

2016 ◽

Vol 10 (1) ◽

Author(s):

Dimitris Kiritsis

Keyword(s):

Sampling Technique ◽

Self Concept ◽

School Students ◽

The Family ◽

Major Variation ◽

Essential Contribution ◽

The One ◽

High Degree ◽

The Relationship

The aim of the study is twofold. On the one hand it concerns the measurement and the examination of the subjects’ self-concept and on the other the detection and justification of the role of family in its configuration. The study analyzed the data collected from the answers to a research questionnaire of 1344 15-and 16-year-old school students in the Prefecture of Thessaloniki, Greece) with the use of a stratified random sampling technique. The first important finding concerned the high degree of the general self-concept of the adolescents. Among the seven specific sectors of the general self-concept a major variation was noted, with the higher average to be traced in the relationship that the students have configured with their peers and the lower one in the valuation of their academic competence. The second important finding was the ascertainment of the essential contribution of the family.

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Phylogenomic analyses reveal non-monophyly of the antbird genera Herpsilochmus and Sakesphorus (Thamnophilidae), with description of a new genus for Herpsilochmus sellowi

The Auk ◽

10.1093/ornithology/ukab025 ◽

2021 ◽

Author(s):

Gustavo A Bravo ◽

Bret M Whitney ◽

Ricardo Belmonte-Lopes ◽

Marcos R Bornschein ◽

Natalia Aristizábal ◽

...

Keyword(s):

Dna Sequences ◽

Sensu Stricto ◽

Monotypic Genus ◽

The Family ◽

Single Genus ◽

Species Groups ◽

Phylogenomic Analyses ◽

Extinction Events ◽

High Degree

Abstract The family Thamnophilidae is a species-rich Neotropical radiation of passerine birds. Current classification of its 235 species is mostly based on morphological similarities, but recent studies integrating comprehensive phenotypic and phylogenetic data have redefined taxonomic limits of several taxa. Here, we assess generic relationships of Herpsilochmus, Sakesphorus, Thamnophilus, Biatas, and Dysithamnus using DNA sequences from the mitochondrion, nuclear exons, and ultraconserved elements, with further attention to interspecific relationships within Herpsilochmus. We show that Herpsilochmus and Sakesphorus are not monophyletic. We resolve Herpsilochmus sellowi as a deep-branch sister to the monotypic genus Biatas and Sakesphorus cristatus as sister to a clade comprising Herpsilochmus sensu stricto and Dysithamnus. These results are consistent across loci, obtained via concatenation and coalescent-based analyses, and supported by likelihood-ratio tests of the distribution of our sampled coalescent histories. The phenotypic distinctiveness of both H. sellowi and Biatas argues against merging them into a single genus. Because no generic name is available for H. sellowi, we describe a monotypic genus. The polyphyly of Sakesphorus warrants recognition of the available generic name Sakesphoroides for the distinctive and monotypic S. cristatus. Furthermore, we recover 6 well-supported species groups within Herpsilochmus sensu stricto. Within the context of the family as a whole, the ubiquity of long terminal branches representing monotypic genera points to extinction events among ancestors of these lineages. We suggest that retention of ancestral characters or random genetic drift coupled with extensive extinction could explain the high degree of morphological and ecological similarity across these taxa, but we highlight the potential role of the environment in driving adaptive phenotypic convergence. Finally, our results send a cautionary message against the blind use of phylogenies containing imputed data based on taxonomy due to the increasingly frequent mismatches between traditional taxonomic classification and molecular phylogenies.

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The Role of Family in the Construction of Traditions among Second-Generation Chinese Immigrants in Hungary

Távol-keleti Tanulmányok ◽

10.38144/tkt.2021.1.13 ◽

2021 ◽

Vol 13 (2021/1) ◽

Author(s):

Eszter Knyihár ◽

Gergely Salát

Keyword(s):

Second Generation ◽

Country Of Origin ◽

Chinese Immigrants ◽

Host Society ◽

Cultural Elements ◽

The Family ◽

Family Setting ◽

And Control ◽

High Degree

Previous research conducted in Hungary has shown that second generation Chinese immigrants construct a complex, multicultural identity which contains elements from the cultural environment created by the host society, the migrant diaspora, the family of the migrant and the country of origin as well. This paper presents the findings of an interview-based research project conducted in Hungary with the involvement of 20 second-generation Chinese immigrants and seeks to examine the complexity of their cultural identity, focussing especially the role of the family in the construction of traditions. According to our findings we argue that in the family setting, there is constant negotiation between generations regarding norms and traditions, which reveal different priorities. In this article I show that those areas where the most negotiations occur also overlap with the fields of increased parental interest and control, namely: education, dating/marriage, and language. I also discuss how holidays celebrated by the family show a high degree of flexibility and mixed solutions, involving cultural elements from both the host society and the country of origin.

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The role of the family in enhancing the self-confidence of the child as seen by kindergarten teachers

المجلة العربية للعلوم ونشر الأبحاث مجلة العلوم التربوية والنفسية ◽

10.26389/ajsrp.a040417 ◽

2019 ◽

Vol 1 (5) ◽

Author(s):

Abeer Ali Al Loheikh Al Mutairi

Keyword(s):

Total Population ◽

Training Programs ◽

Kindergarten Teachers ◽

The Self ◽

Self Confidence ◽

The Family ◽

Descriptive Approach ◽

High Degree ◽

Good Deeds

The study aimed to reveal the role of the family in enhancing self confidence in the child, the obstacles faced by the family in achieving this role, and the most important proposals that contribute to the role of the family in enhancing the self-confidence of its children. The study was based on the descriptive approach, and the questionnaire was used as a tool for collecting data and information. The study was limited to surveying the views of a sample of the kindergarten teachers in Riyadh, 320 of whom are teachers, representing 14.47% of the total population. The study reached several results, the most important of which are: The family praised the good deeds of the children, the approval of the sample of the study, to a high degree on seven of the obstacles faced by the family in enhancing the self-confidence of its children in childhood, the most prominent of which is "the scarcity of family training programs in the field of self-confidence development for children ", Sample sample approval ; A high degree on four of the ten proposals that contribute to the family's role in building self-confidence among its people most notably the "Children briefing tenderness and affection by their parents"

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‘I Know We’ve Got Someone in the School I Can Trust’: Students’ Attitudes Towards School Counselling Services in Slovenian Schools

Pedagogika ◽

10.15823/p.2020.137.7 ◽

2020 ◽

Vol 137 (1) ◽

pp. 117-137

Author(s):

Marjeta Šarić ◽

Katja Jeznik ◽

Jasna Mažgon ◽

Petra Gregorčič Mrvar

Keyword(s):

Protective Factor ◽

Primary School Students ◽

School Students ◽

School Counselling ◽

Counselling Services ◽

School Counsellors ◽

The Family ◽

Students Attitudes ◽

High Degree

This article examines the role of the school counselling service as a protective factor in adolescents’ lives. School counsellors provide adolescents with information, emotional support, and counselling, and for many adolescents, they are the only source of support outside the family. The findings of a study conducted among 1,363 primary school students and 306 secondary school students from Slovenia are presented. The data showed that the students regard school counsellors favourably, and they generally have a high degree of trust in them.

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