2,334 research outputs found
Zorotypus impolitus Mashimo, Engel, Dallai, Beutel
No full textZorotypus impolitus Mashimo, Engel, Dallai, Beutel, & Machida, sp. n. (Figs. 3, 4, 8) Type series. Holotype, apteron male, MALAYSIA: Selangor, Ul Gombak (elevation ca. 200–400 m), 10 April 2011, coll. Y. Mashimo & R. Machida (UKM). Paratypes, 3 apteron males, 3 apteron females, 1 alate female, same data as holotype (SEHU, SMRC, UKM). Apteron and alate specimens were collected under the bark of rotting wood. Diagnosis. This species is similar to Z. sinensis and Z. medoensis but can be distinguished from them by the following: body size distinctly smaller, 2 mm vs. 3–4 mm; long stout bristles on ventral surface of metafemur, proximal 1 st and 3 rd bristles longer than others vs. more distad bristles shorter; male S 8 without posterior extension of posteromedial part; and in the shape of the male genitalia (cf. Hwang 1976: Figs. 3–6). Etymology. The specific epithet is based on the Latin impolitus, referring to the unpolished brown coloration of the body. Description. Apteron male. Body length ca. 2 mm (exclusive of antennae), color matte brown except membranous regions and yellowish white cercus; head subtriangular, slightly wider than pronotum, with whitish area in posterolateral corner; cephalic chaetotaxy as in Figure 3 A, curly setae grouped on vertex (likely associated with fontanelle gland as in males of some other species); compound eyes and ocelli absent; antennae 9 -segmented, distal three antennomeres paler (Fig. 8 A), antennomere I slightly curved outward, antennomere II faintly curved, short, about one-half length of antennomere III, antennomeres III–IX longer than wide, length subequal to that of antennomere I (Fig. 8 A); both mandibles with five apical teeth and well-developed molar region (Fig. 8 B, B’). Pronotum subrectangular, slightly narrowed posteriorly; mesonotum trapezoidal, slightly shorter than pronotum; metanotum trapezoidal, distinctly wider than long, shorter than mesonotum; thorax setose as in Figure 3 B. Legs with moderate-length setae; tibiae and tarsi of all legs paler in color; posterior surface of profemur covered with short setae, anterior and dorsal surfaces covered with moderate-length setae; protibia with moderate-length setae, bristles arranged as comb in distal half along ventral surface, with two apical spurs; mesofemur slightly narrower than profemur, anterior surface broadly setose, posterior and dorsal surfaces covered with moderate-length setae only distally; mesotibia covered with moderate-length setae and two apical spurs; metafemur broader than profemur, more swollen proximally than distally as in Figure 8 D, anterior surface broadly setose, posterior and dorsal surfaces with moderate-length setae on distal half and several short setae on proximal half, ventral surface with eight or nine stout bristles, proximal first and third bristles longer than others (Fig. 8 D); metatibia with moderate-length setae and two apical spurs. Abdominal tergal chaetotaxy as in Figure 3 D; T 1 with a single transverse row of short setae, and a few small setae laterally (Fig. 3 D); T 2–7 with regular vestiture of numerous setae of short and moderate length and a pair of longer setae along posterior margin (Fig. 3 D); T 8 with numerous fine, small setae, three pairs of moderate-length setae and a pair of long, erect setae (Figs. 3 D, 4 B); T 9 short, scarcely sclerotized (Figs. 3 D, 4 C); anterior half of T 10 sclerotized, posterior half membranous; with numerous fine, small setae and median spatula-like, upcurved projection (Figs. 3 D, 4 B; asterisk in Fig. 4 C); T 11 with long and strongly upcurved median projection and two smaller, lateral sclerites each bearing three or four moderate-length setae (Figs. 3 D, 4 B; star in Fig. 4 C); epiproct and paraproct unsclerotized (Fig. 4 B); cercus unsegmented, conical, with one long apical seta, three or four subapical moderate-length setae, several short setae, and very long and fine setae (Fig. 3 D), surface covered with numerous minute spicules except base and apex (too minute to be included in drawing); chaetotaxy of sterna as in Figure 4 A; S 1 scarcely sclerotized; S 2 weakly sclerotized with two or three short setae on each side (Fig. 4 A); S 3–4 with two transverse rows of short setae (Fig. 4 A); S 5 with short setae evenly scattered and a pair of scarcely sclerotized circular areas (Fig. 4 A); S 6–7 with evenly scattered short setae (Fig. 4 A); S 8 wider than long, with evenly scattered, moderate-length setae (Fig. 4 A) and a pair of longer setae (Fig. 4 B); S 9 fused to S 8; S 10 invaginated beneath S 8 + 9, not visible externally; S 11 with two lateral subtriangular sclerites (hemitergites), each with several setae of short and moderate length (Fig. 4 B). Genitalia asymmetrical, without elongate coiled flagellum and well defined basal plate; dorsal sclerite weakly sclerotized, with anterior end curved; middle sclerite twisted and curved; spatula-like ventral sclerite present beneath middle sclerite (Fig. 8 E). Apteron female. Generally as in male except as follows: Head without curly setae grouped on vertex. Abdominal T 10 uniformly sclerotized with four or five setae on each side and a pair of setae of moderate length (Fig. 4 E); T 11 uniformly sclerotized, with small setae and a pair of setae of moderate length (Fig. 4 E); S 8 and 9 not fused; S 8 wider than long, with short setae evenly scattered and two pairs of moderate-length setae, posteromedially with round membranous region (Fig. 4 D); S 9 short and trapezoidal; several small setae and two pairs of moderate-length setae along posterior margin (Fig. 4 D). Alate. General features as in apterous form except as follows: unpolished, blackish brown coloration. Compound eyes and three black ocelli present. Mesonotum indistinctly divided into slightly pointed prescutum, large mesoscutum, and smaller mesoscutellum (Fig. 3 C). Wings as in Figs. 8 C and 8 C’.Published as part of Mashimo, Yuta, Yoshizawa, Kazunori, Engel, Michael S., Abd, Idris, Dallai, Romano, Beutel, Rolf G. & Machida, Ryuichiro, 2013, Zorotypus in Peninsular Malaysia (Zoraptera: Zorotypidae), with the description of three new species, pp. 498-514 in Zootaxa 3717 (4) on pages 507-511, DOI: 10.11646/zootaxa.3717.4.4, http://zenodo.org/record/21964
Onion-like carbon-encapsulated Co, Ni, and Fe magnetic nanoparticles with low cytotoxicity synthesized by a pulsed plasma in a liquid
No full textWe synthesized onion-like carbon-encapsulated Co, Ni, and Fe (Co-C, Ni-C, and Fe-C) magnetic nanoparticles with low cytotoxicity using pulsed plasma in a liquid. The pulsed plasma is induced by a low-voltage spark discharge submerged in a dielectric liquid. The face-centered cubic Co and Ni, and body-centered cubic Fe core nanoparticles showed good crystalline structures with an average size between 20 and 30 nm were encapsulated in onion-like carbon coatings with a thickness of 2-10 nm. Vibrating-sample magnetometer measurements revealed the ferromagnetic properties of as-synthesized samples at room temperature (Co-C=360 Oe, Fe-C=380 Oe, and Ni-C=211 Oe). Raman-spectroscopy analysis found onion-like carbon shells composed of well-organized graphitic structures. Thermal gravimetric analysis showed a high ___________________
*Corresponding author. Tel/Fax: +08052593295. E-mail address: [email protected] (T. Mashimo)
stability of the as-synthesized samples under thermal treatment and oxidation. Cytotoxicity measurements showed higher cancer cell viability than samples synthesized by different methods
Preliminary Measurement of Intraoperative Sympathetic Nerve Activity Using Microneurography and Laser Doppler Flowmetry During Surgical Resection of Suprasellar Tumors Commentary
No full textMashimo T, 1997, ANESTH ANALG, V85, P291WEISSMAN C, 1990, ANESTHESIOLOGY, V73, P308BUTLER MJ, 1977, BRIT J SURG, V64, P786HALTER JB, 1977, J CLIN ENDOCR METAB, V45, P936
Age-related and sex-related changes in perfusion index in response to noxious electrical stimulation in healthy subjects
No full textToshiki Nishimura,1 Aya Nakae,2 Masahiko Shibata,3 Takashi Mashimo,4 Yuji Fujino21Osaka University Medical School, 2Department of Anesthesiology and Intensive Care Medicine, 3Department of Pain Medicine, Osaka University Graduate School of Medicine, Suita, Japan; 4Toyonaka Municipal Hospital, Toyonaka, JapanBackground: Even though pain is a subjective phenomenon, its objective evaluation in humans is important because subjects requiring pain evaluation may be unable to describe their pain intensity because of decreased awareness or impaired cognitive function. Previous reports indicate that the perfusion index (PI), which is calculated from pulse oximeter waveforms, has some utility in assessing pain. However, age-associated and sex-associated differences in change of PI have hitherto not been evaluated for assessment of pain. Therefore, we aimed to estimate the utility of age-related differences in PI change among healthy volunteers subjected to electrical stimulation.Methods: We measured PI and pulse rate in 70 healthy volunteers exposed to gradually increasing electrical stimulation. The subjects were classified into four groups, ie, young men, young women, aged men, and aged women. Stimulation was stopped when subjects reached their pain tolerance threshold. The average PI and pulse rate were calculated 10 seconds before and after electrical stimulation and compared across the four groups. Changes in PI and pulse rate were analyzed using the paired t-test.Results: The PI was significantly decreased in response to pain stimulation in young men (P<0.0001), young women (P=0.0002), and aged men (P=0.0158). However, aged women failed to show significant changes in PI before or after stimulation. The pulse rate was not significantly altered in any of the groups.Conclusion: PI may be an independent parameter reflecting the perception of noxious stimuli and could be used for objective evaluation of pain perception in healthy volunteers, except when it is used for pain evaluation in elderly women.Keywords: noxious stimuli, perfusion index, objective evaluation, age difference, sex differenc
The male and female reproductive systems of Zorotypus hubbardi Caudell, 1918 (Zoraptera)
No full textHere we present an ultrastructural study of the male and female reproductive systems of Zorotypus hubbardi and compare the findings to those presented in an earlier study. The male reproductive system consists of small testes and thin and short deferent ducts opening into a huge seminal vesicle. At the end of the deferent duct a wiredrawer structure is present which initiates the spermatophore formation. A long ejaculatory duct, originating from the seminal vesicle, receives the secretions of three accessory glands. The copulatory organ is a relatively stout structure consisting of two cuticular claspers connected to a ventral sclerite. The testes contain very large and few germ cells (32 sperm in each cyst) which give rise to large sperm characterized by two giant mitochondrial derivatives, two large accessory bodies, and an axoneme with accessory tubules with 17 protofilaments in their tubular wall. In the seminal vesicle the sperm are joined by a secretion to form an elongate spermatophore. The female system consists of panoistic ovarioles, two lateral oviducts, and a common oviduct which receives the spermathecal duct of a huge spermathecal sac in the terminal part of the vagina. The duct is an anterior prolongation of the sac. Its distal part turns back twisting around its proximal portion. At this level a conspicuous muscle layer gives rise to a valve. The bent spermatophore is hosted in the spermathecal sac, with the sperm heads placed in the proximal part of the spermathecal duct. The opening of the duct is close to the female genital opening. The reproductive systems of Zorotypus caudelli and Z. hubbardi, apart from a distinctly different general organization, also have a different sperm structure: those of the former species are free long-moving cells, while the sperm of Z. hubbardi are giant cells joined in a spermatophore. This allows to hypothesize and discuss a different reproductive behaviour in the two species: monandric in Z. hubbardi and polyandric in Z. caudelli. Apparently different forms of selection have resulted in a very uniform general morphology in Zoraptera, and in highly divergent features related to the reproductive system. The presence of 17 protofilaments in the accessory microtubules of the flagellar axoneme is a potential synapomorphy of Zoraptera and Phasmatodea. © 2012 Elsevier Ltd
Between and Connection:An Attempt at Sensory Communications in a Specified Enviroment
No full textapplication/pdfAN10052143-20200605-1This is a progress report of the investigational research on the olfactory communication in the 2017 Doshisha Womenʼs College of Liberal Arts research grant. This research comprised four studies: 1. Survey research on the olfactory communication; 2. Design of the olfactory
communication interface; 3. Exhibition of the olfactory communication interface; 4.Questionnaire survey in the exhibition. Through these four studies, this research attempts to examine the possibilities of olfactory communication, which differs from visual and auditory communications. However, this research consists of various exclusive fields (theoretical consideration about sense and communication, theoretical and historical considerations about media and technology, design of interface including the system, space design of display of the
interface, etc.). Therefore, the author, who is a research representative, sought the cooperation of four experts (Koichi Mori (space design), Takehisa Mashimo (interface design), and Akisha Iwaki (theoretical and historical considerations about the olfactory media and technology)) of
the side mentioned above and carried out a collaborative investigation. Thus, this report takes the form of a research project article, which consists of inputs from the author (Chapter 1), Mori (Chapter 2), Mashimo (Chapter 3), and Iwaki (Chapter 4), so that the result of the research theme is clearer. Further, based on all these studies, this is a progress report of the investigational research on the olfactory communication.論文departmental bulletin pape
Association of TNFRSF4 gene polymorphisms with essential hypertension
No full textThis is a non-final version of an article published in final form in Mashimo, Yoichi ; Suzuki, Yoichi ; Hatori, Kazuko ; Tabara, Yasuharu ; Miki, Tetsuro ; Tokunaga, Katsushi ; Katsuya, Tomohiro ; Ogihara, Toshio ; Yamada, Michiko ; Takahashi, Norio ; Makita, Yoshio ; Nakayama, Tomohiro ; Soma, Masayoshi ; Hirawa, Nobuhito ; Umemura, Satoshi ; Ohkubo, Takayoshi ; Imai, Yutaka ; Hata, Akira, Association of TNFRSF4 gene polymorphisms with essential hypertension, Journal of Hypertension, 26(5) May 2008, pp. 902-913
autho
An international validation study of the IL-2 Luc assay for evaluating the potential immunotoxic effects of chemicals on T cells and a proposal for reference data for immunotoxic chemicals
No full textTo evaluate the immunotoxic effects of xenobiotics, we have established the Multi-ImmunoTox assay, in which three stable reporter cell lines are used to evaluate the effects of chemicals on the IL-2, IFN-γ, IL-1β and IL-8 promoters. Here, we report the official validation study of the IL-2 luciferase assay (IL-2 Luc assay). In the Phase I study that evaluated five coded chemicals in three sets of experiments, the average within-laboratory reproducibility was 86.7%. In the Phase II study, 20 coded chemicals were evaluated at multiple laboratories. In the combined results of the Phase I and II studies, the between-laboratory reproducibility was 80.0%. These results suggested that the IL-2 Luc assay was reproducible both between and within laboratories. To determine the predictivity, we collected immunotoxicological information and constructed the reference data by classifying the chemical into immunotoxic compounds targeting T cells or others according to previously reported criteria. When compared with the reference data, the average predictivity of the Phase I and II studies was 75.0%, while that of additional 60 chemicals examined by the lead laboratory was 82.5%. Although the IL-2 Luc assay alone is not sufficient to predict immunotoxicity, it will be a useful tool when combined with other immune tests
Effect of ultraviolet treatment on bacterial attachment and osteogenic activity to alkali-treated titanium with nanonetwork structures
No full textHonghao Zhang,1,2 Satoshi Komasa,1 Chiho Mashimo,3 Tohru Sekino,4 Joji Okazaki1 1Department of Removable Prosthodontics and Occlusion, Osaka Dental University, Hirakata, Osaka, Japan; 2Department of Stomatology, Nanfang Hospital and College of Stomatology, Southern Medical University, Guangzhou, Guangdong, China; 3Department of Bacteriology, Osaka Dental University, Hirakata, 4The Institute of Scientific and Industrial Research, Osaka University, Suita, Osaka, Japan Purpose: Alkali-treated titanium with nanonetwork structures (TNS) possesses good osteogenic activity; however, the resistance of this material to bacterial contamination remains inadequate. As such, TNS implants are prone to postoperative infection. In this work, we attempted to alter the biological properties of TNS by treatment with short-duration high-intensity ultraviolet (UV) irradiation.Methods: TNS discs were treated with UV light (wavelength =254 nm, strength =100 mW/cm2) for 15 minutes using a UV-irradiation machine. We carried out a surface characterization and evaluated the discs for bacterial film formation, protein adsorption, and osteogenic features.Results: The superhydrophilicity and surface hydrocarbon elimination exhibited by the treated material (UV-treated titanium with a nanonetwork structure [UV-TNS]) revealed that this treatment effectively changed the surface characteristics of TNS. Notably, UV-TNS also showed reduced colonization by Actinomyces oris during an initial attachment period and inhibition of biofilm formation for up to 6 hours. Moreover, compared to conventional TNS, UV-TNS showed superior osteogenic activity as indicated by increased levels of adhesion, proliferation, alkaline phosphatase activity, osteogenic factor production, and osteogenesis-related gene expression by rat bone marrow mesenchymal stem cells (rBMMSCs). This inverse relationship between bacterial attachment and cell adhesion could be due to the presence of electron–hole pairs induced by high-intensity UV treatment.Conclusion: We suggest that simple UV treatment has great clinical potential for TNS implants, as it promotes the osseointegration of the TNS while reducing bacterial contamination, and can be conducted chair-side immediately prior to implantation. Keywords: implant, nanonetwork, postoperative infection, UV treatment, superhydrophilicity, osteointegratio
Measurement of the and production cross sections in multilepton final states using 3.2 fb of collisions at = 13 TeV with the ATLAS detector
No full textSee paper for full list of authors - 22 pages plus author list + cover page (40 pages total), 8 figures, 5 tables. Submitted to Eur. Phys. J. C. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TOPQ-2015-22/International audienceA measurement of the and production cross sections in final states with either two same-charge muons, or three or four leptons (electrons or muons) is presented. The analysis uses a data sample of proton-proton collisions at TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015, corresponding to a total integrated luminosity of 3.2 fb. The inclusive cross sections are extracted using likelihood fits to signal and control regions, resulting in pb and pb, in agreement with the Standard Model predictions
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