113,439 research outputs found
Differential HFE allele expression in hemochromatosis heterozygotes
No full textComment on:
Differential HFE allele expression in hemochromatosis heterozygotes. [Gastroenterology. 2000
Laena rolandi Schawaller, 2006, n. sp.
No full textLaena rolandi n. sp. (Figs 10, 24) Holotype (♂): N Thailand, Chiang Mai, Doi Pui, 1600–1685 m, 7.– 9.V. 2004, leg. R. Grimm, CRGT. Paratypes: N Thailand, Chiang Mai, Doi Suthep Pui NP, 30.V. 1999, leg. R. Grimm, 1 ex. CRGT. – N Thailand, Chiang Mai, Doi Pui, 1600–1685 m, 23.IV.– 12.V. 2003, leg. R. Grimm, 5 ex. CRGT, 2 ex. SMNS. Etymology: Dedicated to Dr. Roland Grimm (Tübingen), collector of the type series, for fruitful longterm cooperation. Diagnosis: Laena rolandi n. sp. and Laena thailandica Kaszab & Chûjô, 1966 (see photo 6 in Kaszab & Chûjô 1966) from southern Thailand share the small body size, unarmed legs and the glabrous surface, but can be separated by completely different shaped pronotum (round and widest in the middle in thailandica), dense nearly confluent pronotal punctation (sparse in thailandica), unbordered lateral pronotal margin (bordered in thailandica) and narrower elytral intervals. The aedeagus of Laena thailandica is unknown and so can not be compared. Description: Body length 3.8–5.0 mm. Eyes somewhat prominent. Pronotum (Fig. 10) with large punctures, distance between 0.5– 3 diameters, most punctures bearing short adpressed seta; surface flat, shining; lateral margin unbordered; propleura with sparser punctation, nearly without setation. Elytra (Fig. 10) with complete rows of punctures without striae, punctures equal in size to pronotal punctures, all without setae; intervals with very few scattered punctures, without setae, interval 9 with 3 distinct setiferous pores; all intervals slightly convex, shining. Femora in both sexes without distinct tooth or other modification. Tibiae in males without distinct sexual character. Aedeagus see Fig. 24.Published as part of Schawaller, Wolfgang, 2006, New species of the genus Laena Latreille (Coleoptera: Tenebrionidae) from Southeastern Asia *, pp. 369-384 in Zootaxa 1325 on pages 374-375, DOI: 10.5281/zenodo.17402
Force probing of protein crystals: An atomic force microscopy study
No full textThe atomic force microscope (AFM) was used for measuring
force-distance curves on horse spleen ferritin crystals in liquid
environment. In the region of the approach curve which corresponds
to tip-surface contact, discrete jumps were recorded, as predicted
by molecular dynamics simulations in the case of low tip-sample
interaction. The observed jumps can be related to the removal of
individual molecules from the surface by the AFM tip. A simple
steric model, which takes into account tip and ferritin molecule
size, can explain the displacements
observed with excellent agreement.
The elemental force jump resulting from the approach
curves is a direct measure of the force required to remove a single
molecule from the crystal face. We discuss the conditions under
which the cantilever potential energy difference along the
elemental force step provides the energy of extraction of a single
molecule. The estimate of the intermolecular binding energy turns
out to be in good agreement with the value calculated independently
from the surface free energy of ferritin crystals
Goniocotes rolandi Gustafsson & Tian & Zou 2021, new species
No full textGoniocotes rolandi new species (Figs 10–11, 13–15) Type host: Crossoptilon harmani Elwes, 1881 —Tibetan eared pheasant (Phasianidae). Type locality: Southeast Tibet, China. Diagnosis. Goniocotes rolandi new species is most similar to Goniocotes crossoptiloni Liu, 1990. These two species can be separated by the following characters: male tergopleurites V–VI with 1 tps on each side and tergopleurite VII without tps in G. crossoptiloni, but tergopleurite V with 2–4 tps on each side, tergopleurite VI with 1–2 tps on each side, and tergopleurite VII with 1–2 tps on each side in G. rolandi (Fig. 10); male sternite IV–V with 2 sts on each side in G. crossoptiloni, but with 3–4 sts on each side in G. rolandi (Fig. 10); head of G. rolandi (Figs 10–11) proportionately wider and with flatter frons, especially in female, than head of G. crossoptiloni; vulval margins more or less gently rounded in G. crossoptiloni, but with pronounced median bulge in G. rolandi (Fig. 13); male genitalia not illustrated in sufficient detail for G. crossoptiloni, but appear to have shorter parameres and broader mesosome than those of G. rolandi (Figs 14–15). Description. Both sexes. Head shape as in Fig. 10; temples flaring with definite postero-lateral corner at aperture of mts1. Marginal carina of moderate width, widening anteriorly (more obvious in male). Head chaetotaxy as in Figs 10–11; os sexually dimorphic; s1–2 and s5–9 present, as well as one sensillum situated roughly on a line between pts and pns, which may be either of s3–4. Thoracic and abdominal segments as in Figs 10–11. Reticulation covers almost all of tergal and subgenital plates, but is less distinct elsewhere. For clarity, we have here illustrated only parts of this reticulation in grey, to indicate the relative size of the cells in the pattern. Measurements as in Table 1. Male. Ocular seta macroseta (Fig. 10). Thoracic and abdominal chaetotaxy as in Fig. 10; median section of pteronotum with one macroseta and one microseta on each side; tergopleurites II–IV with setal rows; tergopleurite V with 2–4 tps on each side; tergopleurite VI with 1–2 tps on each side (one specimen with no tps on one side); tergopleurite VII with one tps on each side. Basal apodeme long and slender (Figs 14–15). Mesosome present, roughly triangular dorsally (Fig. 14), but ventrally with distinct hook-shaped lateral extensions at about mid-length. One small sensillum on each side near the dorsal anterior margin; no other sensilla or setae visible. Postero-lateral corners of basal apodeme with rugose nodi; parameres slender and somewhat elongated. Female. Ocular seta microseta (Fig. 11). Thoracic and abdominal segments and chaetotaxy as in Fig. 11. Vulval margin with distinct median bulge and lateral sections deeply concave (Fig. 13). Vulval chaetotaxy: 41–48 long, slender vms (often in double rows at least laterally) and 2–3 large, thorn-like vss on each side; oblique set with 5–8 vos of varying length on each side, typically with distal setae longer than more proximal setae. Etymology: The specific epithet is in honour of the first author’s father, Roland Gustafsson, who spent many weekends taking him outdoors to watch birds, to camp, to enjoy nature, and introducing him to his first bird-ringing event outside Jönköping, Sweden, in the early 1990s. This laid the foundations of a solid interest in nature for the first author, who eventually devoted his life to biological research. Type material. Ex Crossoptilon harmani: Holotype ♂, S.E. Tibet [China], May 1912, R. Meinertzhagen, ID 3759, NHMUK010675935 [right-most male on slide, marked with black dot] (NHMUK). Paratypes. 3♂, 6♀, same data as holotype, NHMUK010675934–5 (NHMUK).Published as part of Gustafsson, Daniel R., Tian, Chunpo & Zou, Fasheng, 2021, New species of ischnoceran chewing lice (Phthiraptera: Philopteridae) from Chinese birds, pp. 305-328 in Zootaxa 4990 (2) on pages 310-317, DOI: 10.11646/zootaxa.4990.2.6, http://zenodo.org/record/502655
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
Insects in Agriculture: Traditional Roles and Beyond
No full textInsects have always represented a key factor for agriculture, since crop production has constantly depended on pollination. In recent years, the use of pesticides, the reduction in land availability, the changes in environmental conditions, and the rise of invasive species endangered the traditional pollinators’ life. The economic and ecological importance of these insects led the European Commission to carry on a specific policy to protect bees.
However, pollination is not the only significant role that bugs can play in agriculture. Beneficial insects are also successful ‘weapons’, when associated with other forms of crop protection, in the integrated pest management. This function is of paramount importance when referring to organic agriculture, where insects are further expressly included in the notion of ‘animal production’.
Insects can however play additional innovative roles in agriculture, turning to be promising solutions for the emerging issues concerning the environment, and the sufficiency of feed and food supplies.
Any innovative approach leads to new questions, in a law perspective. Starting from the traditional roles of insects in agriculture (pollination and pest management), the paper will focus on their newest functions (insects as waste reducers and as sources of feed and food), paying particular attention to the emerging relevant legal issues, both at an international and at an EU level: the existence of harmonized regulatory frameworks, questions related to animal welfare, organizational aspects of the breeding systems, but above all safety and environmental concerns. It will finally draw some conclusions, wondering what aspects could be improved and to what extent
Diamonds from the Udachnaya Pipe, Yakutia. Their morphology, optical and Raman characterization, FTIR and CL features
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Gems corals : classification and spectroscopic features
No full textSeveral gem corals, belonging to the classes Hydrozoa and Anthozoa of the phylum Cnidaria, have been analyzed. These have been previously classified from a zoological point of view. In this paper surface structures, physical data, FTIR- and Raman-spectra of corals with gem potential have been investigated. Spectrophotometric characterisation proved to be a useful tool for determining the main features of the mineral phases (calcite or aragonite) and of the organic content in each sample. Chromophore complexes belonging to the caroteno-proteins of the carotenoid family also could be detected
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