Redescription of Rhopalopsole hamata Yang & Yang, 1995 (Plecoptera: Leuctridae) based on the male, female, and nymph, with notes on the R. dentata group from China

Zootaxa ◽  
2019 ◽  
Vol 4613 (1) ◽  
pp. 172-180
Author(s):  
ZHI-TENG CHEN
Keyword(s):  
Coastal Areas ◽  
Biological Data ◽  
Southeastern China ◽  
Species Checklist ◽  
New Material ◽  
Coastal Province

The male, female, and nymph of the leuctrid Rhopalopsole hamata Yang & Yang, 1995, originally known from Zhejiang, an eastern coastal province of China, are redescribed and illustrated. This new material is from Jiangsu, an eastern-central coastal province of China. Brief biological data is also provided for this species. In addition, a species checklist of the Rhopalopsole dentata group from China is provided. The type localities of these group are mainly in the coastal areas of southeastern China. 

The gall wasp fauna of Iran (Hymenoptera: Cynipidae: Cynipinae): species checklist and biogeographical assessment

Zootaxa ◽  
2021 ◽  
Vol 4948 (3) ◽  
pp. 301-335
Author(s):  
MAJID TAVAKOLI ◽  
ASADOLLAH HOSSEINI-CHEGENI ◽  
GRAHAM N. STONE ◽  
SEYED E. SADEGHI ◽  
R. J. ATKINSON ◽  
...  
Keyword(s):  
Middle East ◽  
Spatial Scales ◽  
Biological Data ◽  
The Caspian Sea ◽  
Gall Wasp ◽  
The Caucasus ◽  
Western Asia ◽  
Species Checklist ◽  
Present Distribution ◽  
Western Palaearctic

We provide a checklist of the gall wasps (Hymenoptera: Cynipidae: Cynipinae) of Iran, and place these records in a biogeographical perspective on three spatial scales, comprising (i) the Western Palaearctic, (ii) Western Asia (Turkey, the southern Caucasus and the Middle East) and (iii) regions within Iran. We present distribution and biological data for 121 species in 24 genera, representing nine of the 12 known cynipid gall wasp tribes. The most species–rich tribe in Iran is the oak gall wasp tribe Cynipini, with 74 species and 11 genera. Cynipid species richness is highest in the central and northern Zagros, with a distinctively different fauna in the forests along the southern shores of the Caspian Sea. Of the species found in Iran, 63 have distributions that extend westwards far into Europe, and can be considered Western Palaearctic species. Twenty four species comprise a distinct eastern component within the Western Palaearctic, with distributions that include Iran and some or all of Turkey, the Middle East and the Caucasus. Twenty one species are apparently endemic to Iran, with distinct Zagros and Caspian components. We highlight biological and phylogeographic processes that may underlie these patterns. 

scholarly journals Physical and Biological Water Column Observations during Summer Sea/Land Breeze Winds in the Coastal Northern Tyrrhenian Sea

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1673 ◽  
Author(s):  
Riccardo Martellucci ◽  
Alberto Pierattini ◽  
Francesco de Mendoza ◽  
Cristiano Melchiorri ◽  
Viviana Piermattei ◽  
...  
Keyword(s):  
Water Column ◽  
Time Scales ◽  
Thermal Structure ◽  
Coastal Areas ◽  
Biological Data ◽  
Water Circulation ◽  
Ocean Current ◽  
Land Breeze ◽  
Tyrrhenian Sea ◽  
Coastal Site

Coupling between sea/land breeze and coastal circulation and the influence of wind-driven dynamics are substantially relevant for understanding coastal Mediterranean ecosystems. These coastal areas are particularly dynamic and are characterized by high-variable processes which drive biological phenomena at different time-scales. For the Tyrrhenian Sea, the available information on coastal dynamics is confined to large-scale general circulation with a focus exclusively on mesoscale pelagic dynamical processes. Hydrodynamic studies of Tyrrhenian coastal areas are very rare and focus on surface water circulation. For time scales that are associated with coastal water circulation, there is also limited knowledge on water column dynamics that are forced by local atmospheric circulations. This paper presents physical and biological data to document the effect of sea/land breeze circulation on ocean current dynamics and water column structures in a Northern Tyrrhenian coastal site. This coastal area is characterized by the presence of a relevant energy production site as well as one of the most important ports in the Mediterranean Sea for cruise traffic. Consequently, this coastal site is a transit point for many tourists and it is characterized by an increase of energy demand, especially during the summer season. The in-situ data show that coastal currents are predominantly controlled by the tide and local wind and respond rapidly to changes in wind direction. Water column thermal structure analyses reveal significant changes with the morning’s rotation of breeze: lifting of isotherms (cooling) was typically observed in deep layers during early mornings, accompanied by fluctuations in isotherms. The performed investigations provide valuable inputs for coastal ecosystem modeling and for a better understanding of the coastal processes that are significant for environmental and navigational interests.

scholarly journals Morphology and life history of an ant parasitoid, Psilocharis afra (Hymenoptera: Eucharitidae)

Zootaxa ◽  
2018 ◽  
Vol 4482 (3) ◽  
pp. 491 ◽  
Author(s):  
JOHN M. HERATY ◽  
ROGER A. BURKS ◽  
NOKUTHULA MBANYANA ◽  
SIMON VAN NOORT
Keyword(s):  
South Africa ◽  
Life History ◽  
Plant Tissue ◽  
Sister Group ◽  
Biological Data ◽  
Mpumalanga Province ◽  
Life History Data ◽  
First Instar ◽  
History Of ◽  
New Material

Eucharitidae (Hymenoptera) are specialized ant (Formicidae) parasitoids. As we begin to develop a better understanding of their phylogenetic relationships, it is critical to establish baselines for morphological and biological data. A morphological review and the first report of life history data for Psilocharis afra Heraty is provided based on new material from the Mpumalanga Province of South Africa. Psilocharis Heraty is included in Eucharitinae, but it is unclear whether it is the sister group of all other members of the subfamily, or sister group to Neolosbanus Girault in a monophyletic Psilocharitini, which would in turn be sister group to Eucharitini. The oviposition habits of P. afra differ from those of other Eucharitidae in that eggs are placed among trichomes under bracts at flower bases, instead of either being inserted into cavities formed in plant tissue by an enlarged ovipositor (as in Oraseminae and some Neolosbanus) or inserted into cavities in plant tissue, as in most Eucharitini. The egg and first-instar planidia larva are described, and adult morphology is discussed with reference to Eucharitidae and other parasitoid Hymenoptera. 

On the subsistence types of the Xiantouling Culture

2018 ◽  
Vol 18 (1) ◽  
pp. 127-135 ◽  
Author(s):  
Weiju Chen
Keyword(s):  
Large Scale ◽  
Sand Dune ◽  
Late Phase ◽  
Coastal Areas ◽  
Environmental Research ◽  
Marine Resources ◽  
Shell Midden ◽  
Southeastern China ◽  
Archaeological Cultures ◽  
Kitchen Midden

Abstract The Xiantouling Culture featured sand dune sites and shell midden (kitchen midden) sites. Through an analysis of the faunal and floral remains and tools unearthed from these sites, with the relevant unearthed pottery wares and paleo-environmental research results taken into account, it can be evidenced that the subsistence types of these sites were mainly plant gathering supplemented by fishing and hunting, instead of relying on marine resources. The subsistence type of the sand dune sites was mainly plant gathering and occasionally rice gathering or farming; that of the earlier kitchen madden sites was gathering freshwater shells, and that of the later ones was more relying on marine resources. From the late phase of Xiantouling Culture, the archaeological cultures in the coastal areas of southeastern China began to utilize marine resources in a large scale.

Characterization of a monolayer graphitic structure

1994 ◽  
Vol 52 ◽  
pp. 760-761
Author(s):  
X. Lin ◽  
X. K. Wang ◽  
V. P. Dravid ◽  
J. B. Ketterson ◽  
R. P. H. Chang
Keyword(s):  
Three Dimensional ◽  
Single Layer ◽  
Synthesis Process ◽  
Graphitic Structure ◽  
Positive Gaussian Curvature ◽  
Graphitic Sheet ◽  
Structural And Electronic Properties ◽  
New Material ◽  
Hexagonal Network

For small curvatures of a graphitic sheet, carbon atoms can maintain their preferred sp2 bonding while allowing the sheet to have various three-dimensional geometries, which may have exotic structural and electronic properties. In addition the fivefold rings will lead to a positive Gaussian curvature in the hexagonal network, and the sevenfold rings cause a negative one. By combining these sevenfold and fivefold rings with sixfold rings, it is possible to construct complicated carbon sp2 networks. Because it is much easier to introduce pentagons and heptagons into the single-layer hexagonal network than into the multilayer network, the complicated morphologies would be more common in the single-layer graphite structures. In this contribution, we report the observation and characterization of a new material of monolayer graphitic structure by electron diffraction, HREM, EELS.The synthesis process used in this study is reported early. We utilized a composite anode of graphite and copper for arc evaporation in helium.

Cross-sectional TEM specimen preparation from magneto-optical disk by ultramicrotomy

1993 ◽  
Vol 51 ◽  
pp. 236-237
Author(s):  
F. Shaapur ◽  
M.J. Kim ◽  
Seh Kwang Lee ◽  
Soon Gwang Kim
Keyword(s):  
System Development ◽  
Thin Foil ◽  
Specimen Preparation ◽  
Material System ◽  
Cross Sectional ◽  
Protective Layers ◽  
New Material ◽  
Diamond Saw ◽  
Original Production ◽  
Thick Medium

TEM characterization and microanalysis of the recording media is crucial and complementary to new material system development as well as quality control applications. Due to the type of material generally used for supporting the medium, i.e., a polymer, conventional macro- and microthinning procedures for thin foil preparation are not applicable. Ultramicrotorny (UM) is a viable option and has been employed in previous similar studies. In this work UM has been used for preparation of XTEM samples from a magneto-optical (MO) recording medium in its original production format.The as-received material system consisted of a 4-layer, 2100 Å thick medium including a 300 Å TbFeCo layer enveloped by silicon nitride protective layers supported on a 1.2 mm thick × 135 mm (5.25 in.) diameter polycarbonate disk. Recording tracks had an approximate pitch of 1.6 μm separated by 800 Å deep peripheral grooves. Using a Buehler Isomet low-speed diamond saw, 1 mm wide and 20 mm long strips were cut out of the disk along the recording tracks.

The Case of Thematic Tests Adapted to Older Adults

2011 ◽  
Vol 32 (1) ◽  
pp. 46-71 ◽  
Author(s):  
Benoît Verdon
Keyword(s):  
Older Adults ◽  
Older Persons ◽  
Older Men ◽  
Elderly Persons ◽  
Mental Processes ◽  
Men And Women ◽  
Projective Tests ◽  
New Material ◽  
Older Men And Women ◽  
Latent Content

Since the 1950s, the growing interest of clinicians in using projective tests to study normal or pathological aging processes has led to the creation of several thematic tests for older adults. This development reflects their authors’ belief that the TAT is not suitable to the concerns and anxieties of elderly persons. The new material thus refers explicitly to situations related to age; it aims to enable older persons to express needs they cannot verbalize during consultations. The psychodynamic approach to thematic testing is based on the differentiation between the pictures’ manifest and latent content, eliciting responses linked to mental processes and issues the respondent is unaware of. The cards do not necessarily have to show aging characters to elicit identification: The situations shown in the pictures are linked to loss, rivalry, helplessness, and renunciation, all issues elderly respondents can identify with and that lead them to express their mental fragilities and resources. The article first explains the principles underlying four of these thematic tests, then develops several examples of stories told for card 3BM of the TAT, thus showing the effectiveness of this tool for the understanding and differentiation of loss-related issues facing older men and women.

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