16,798 research outputs found
Rhinolophus monticolus Soisook & Karapan & Srikrachang & Dejtaradol & Nualcharoen & Bumrungsri & Lin & Aung & Bates & Harutyunyan & Buś & Bogdanowicz 2016
No full textRhinolophus monticolus — Thailand : KX099326 (PSUZC-MM.2013.16); ABBTH 098-07 (SB060520-06); ABBTH 101-07 (SB060520-09); ABBTH 102-07 (SB060520- 10); — Lao PDR: ABBM 332-05 (INECOL M0145); ABBM 333-05 (INECOL M0147); ABBM 335-05 (ROM MAM 118356);Published as part of Soisook, Pipat, Karapan, Sunate, Srikrachang, Mattana, Dejtaradol, Ariya, Nualcharoen, Kwan, Bumrungsri, Sara, Lin, Sai Sein, Aung, Moe Moe, Bates, Paul J. J., Harutyunyan, Margarita, Buś, Magdalena M. & Bogdanowicz, Iesław, 2016, Hill forest dweller: a new cryptic species of Rhinolophus in the ' pusillus group' (Chiroptera: Rhinolophidae) from Thailand and Lao PDR, pp. 117-139 in Acta Chiropterologica 18 (1) on page 138, DOI: 10.3161/15081109ACC2016.18.1.005, http://zenodo.org/record/375673
Access to and utilisation of GP services among Burmese migrants in London: a cross-sectional descriptive study.
No full textBACKGROUND: An estimated 10,000 Burmese migrants are currently living in London. No studies have been conducted on their access to health services. Furthermore, most studies on migrants in the United Kingdom (UK) have been conducted at the point of service provision, carrying the risk of selection bias. Our cross-sectional study explored access to and utilisation of General Practice (GP) services by Burmese migrants residing in London. METHODS: We used a mixed-method approach: a quantitative survey using self-administered questionnaires was complemented by qualitative in-depth interviews for developing the questionnaire and triangulating the findings of the survey. Overall, 137 questionnaires were received (a response rate of 57%) and 11 in-depth interviews conducted. The main outcome variables of the study included GP registration, barriers towards registration, GP consultations, barriers towards consultations, and knowledge on entitlements to health care. Quantitative data were analysed using descriptive statistics, association tests, and a multivariate analysis using logistic regression. The qualitative information was analysed using content analysis. RESULTS: The respondents were young, of roughly equal gender (51.5% female), well educated, and had a fair level of knowledge on health services in the UK. Although the GP registration rate was relatively high (80%, 109 out of 136), GP service utilisation during the last episode of illness, at 56.8% (54 out of 95), was low. The statistical analysis showed that age being younger than 35 years, lacking prior overseas experience, having an unstable immigration status, having a shorter duration of stay, and resorting to self-medication were the main barriers hindering Burmese migrants from accessing primary health care services. These findings were corroborated by the in-depth interviews. CONCLUSIONS: Our study found that having formal access to primary health care was not sufficient to ensure GP registration and health care utilisation. Some respondents faced difficulties in registering with GP practices. Many of those who have registered prefer to forego GP services in favour of self-medication, partly due to long waiting times and language barriers. To ensure that migrants enjoy the health services they need and to which they are entitled, more proactive steps are required, including those that make health services culturally responsive
Recent Results From the EU POF-PLUS Project: Multi-Gigabit Transmission Over 1 mm Core Diameter Plastic Optical Fibers
No full textRecent activity to achieve multi-gigabit transmission over 1 mm core diameter graded-index and step-index plastic optical fibers for distances up to 50 meters is reported in this paper. By employing a simple intensity-modulated direct-detection system with pulse amplitude or digital multi-tone modulation techniques, low-cost transceivers and easy to install large-core POFs, it is demonstrated that multi-gigabit transmission up to 10 Gbit/s over 1-mm core diameter POF infrastructure is feasible. The results presented in this paper were obtained in the EU FP7 POF-PLUS project, which focused on applications in different scenarios, such as in next-generation in-building residential networks and in datacom applications
FIGURES 10–11 in First record of Cynipidae from Myanmar with description of a new species of Lithosaphonecrus (Hymenoptera: Cynipidae: Synergini)
No full textFIGURES 10–11. Holotype female of Lithosaphonecrus mindatus sp. nov.: 10 antenna, (scale bar = 100 μm); 11 forewing (scale bar = 1 mm).Published as part of Ide, Tatsuya, Aung, Mu Mu & Tanaka, Nobuyuki, 2020, First record of Cynipidae from Myanmar with description of a new species of Lithosaphonecrus (Hymenoptera: Cynipidae: Synergini), pp. 344-350 in Zootaxa 4810 (2) on page 348, DOI: 10.11646/zootaxa.4810.2.7, http://zenodo.org/record/393832
FIGURES 12–13. 12 in First record of Cynipidae from Myanmar with description of a new species of Lithosaphonecrus (Hymenoptera: Cynipidae: Synergini)
No full textFIGURES 12–13. 12 Bud gall from which Lithosaphonecrus mindatus sp. nov. emerged (scale bar = 1 cm); 13 holotype female of Lithosaphonecrus mindatus sp. nov., habitus (scale bar = 1 mm).Published as part of Ide, Tatsuya, Aung, Mu Mu & Tanaka, Nobuyuki, 2020, First record of Cynipidae from Myanmar with description of a new species of Lithosaphonecrus (Hymenoptera: Cynipidae: Synergini), pp. 344-350 in Zootaxa 4810 (2) on page 348, DOI: 10.11646/zootaxa.4810.2.7, http://zenodo.org/record/393832
Lithosaphonecrus mindatus Ide, Aung & Tanaka 2020, sp. nov.
No full textLithosaphonecrus mindatus Ide, Aung & Tanaka, sp. nov. (Figs. 1–13) urn:lsid:zoobank.org:act: 78DF0272-2B0C-468E-9CE9-6C1A9D2483AB Material examined. Holotype (designated here): 1 adult female, about 20km west from Mindat, Chin State, Myanmar, 21°23'36.25"N, 93°46'45.03"E, elevation about 2,400m; collection of gall: 28.xi.2017, emergence of adult: 2.xii.2017; T. Ide leg.; deposited in National Museum of Nature and Science, Tokyo, Japan (NSMT) with accession number NSMT-I-Hym 77508. Description. Head and mesosoma black; antenna brown, except for darker terminal flagellomere; palpi yellow; mandible brown, except for darker margin; tegula yellow; legs yellow, except for darker metacoxa and tarsal claws. Metasoma mostly dark and ventrally reddish brown; hypopygial spine yellow. Head (Figs. 1–4) rounded in frontal view, almost as broad as mesosoma in dorsal view. Vertex and occiput coriarious; occipital carina only present laterally, posterior of the genae. Median ocellus transversely oblong; lateral ocellus round; POL:OOL:LOL = 20:11:10. Frons coriarious with delicate longitudinal strigae from antennal rims. Diameter of antennal rim 3.0 times as broad as distance between inner margins of rims, almost as broad as distance between lateral margin of antennal rim and inner margin of compound eye. Inner margin of compound eye concave; distance between inner margins of compound eyes 1.1 times as broad as height of compound eye. Lower face including malar area and clypeus covered with setae, with facial strigae radiating from ventral margin of clypeus; facial strigae reaching beyond area between antennal rim and compound eye and partly connecting to longitudinal strigae on frons; anterior tentorial pit small; subocular impression absent; epistomal sulcus and clypeo-pleurostomal line indistinct; ventral margin of clypeus almost straight. Gena coriarious, not broadened behind compound eye. Antenna (Fig. 10) 13-segmented; scape excluding base 1.4 times as long as pedicel, almost as long as first flagellomere; relative lengths of flagellomeres 1–11: 18, 9, 10, 11, 13, 14, 15, 16, 16, 15, 30. Mesosoma (Figs. 5–7) slightly longer than high in lateral view. Pronotum rugose, covered with setae; submarginal pronotal impression narrow, marked by ledge posteriorly; pronotal plate smooth, distinctly set off, with anterolateral corners, ventral and lateral margin marked; lateral pronotal carina present but indistinct. Mesoscutum slightly broader than long in dorsal view, coriarious with broad transverse rugae, covered with sparse setae, except for anterior area transversely rugulose, covered with dense setae; impression mesad parascutal carina anteriorly continuing to anterior end of notaulus; notaulus complete but frequently separated by parallel rugae; anteroadmedian signum absent; parapsidal signum present but indistinct; median mesoscutal impression present posteriorly as short triangle impression. Dorsal axillar area coriarious. Mesoscutellum coriarious but rugose toward margins, covered with sparse setae; scutellar fovea with longitudinal carinae, separated by broad foveal septum; posterolateral margin of scutellar fovea indistinct with posterior rugae. Mesopleuron coriarious with parallel longitudinal strigae; mesopleural triangle covered with dense setae; ventral border of mesopleural triangle marked throughout by distinct ventral carina. Metascutellum subrectangular; metanotal trough with vertical carinae, with setae. Metepimeron marked by distinct ledge posteriorly. Propodeum (Fig. 7) smooth, covered with short setae; lateral propodeal carina broad, parallel to another side. Marginal cell of forewing (Fig. 11) open, 3.2 times as long as broad. R1 and Rs not reaching wing margin. Areolet absent. Rs+M indistinct. Apex of metatarsal claw distinctly bent; base not expanded to lobe. Length of forewing 2.03 mm, and of hind tibia 0.57 mm. Metasoma (Figs. 8, 9) smooth; metasomal terga II and III fused, with sparse setae basolaterally, with band of rows of minute punctures posteriorly. Subsequent terga and hypopygium with band of minute punctures. Lateral flap of hypopygium rounded in lateral view; projecting part of hypopygial spine only slightly protruded in lateral view, tapered to apex in ventral view, 1.6 times as long as high in lateral view, 1.3 times as long as wide in ventral view; subapical setae sparse, slightly reaching beyond apex of spine. Diagnosis. The new species resembles L. arcoverticus Liu, Zhu & Pang more closely than other congeners, sharing the following morphological features: 1) veins of R1 and Rs of the forewing do not reach the wing margin (Fig. 11); 2) the surface of the metanotal trough has longitudinal carinae (Fig. 7); and 3) F1 is at least 2.0 times as long as F2, F3–F10 gradually elongate apically, and F11 is 2.0 times as long as F10 (Figs. 1, 10). However, the new species is differentiated from L. arcoverticus by the following morphological features: 1) the scutellar fovea of the mesoscutellum is separated by a broad foveal septum in the new species (Fig. 6), but by a narrow carina in the latter; 2) the anteroadmedian signum is absent in the new species (Fig. 6), but present in the latter; and 3) the median mesoscutal impression is present as short triangular impression in the new species (Fig. 6), but present in the posterior one fourth of the mesoscutum in the latter. The syntergite (metasomal terga II + III) does not cover the remaining tergites in the holotype of the new species (Fig. 8), but we do not include this in the diagnosis because this might be due to sample preparation. Geographic distribution. Chin State, Myanmar. Biology. An adult female emerged from a bud gall induced on Lithocarpus thomsonii on December 2, 2017 (Figs. 12–13). Several exit holes were observed on the surface of the gall at collection. The gall is almost sphereshaped, being 10.2 mm in diameter. Etymology. The specific epithet is derived from the type locality, Mindat Township, located on the northeastern side of Mt. Victoria (Natma Taung), the highest peak of the Chin Hills in northwestern Myanmar. DNA Barcoding. Pairwise distances among available COI sequences of Lithosaphonecrus species are shown in Table 1. The sequence of the new species shows a 14–15% difference from congeners based on 614 bp of the COI region. Notes. Most of the morphological characteristics and molecular data support the treatment of the new species as Lithosaphonecrus. However, the following morphological characteristics are inconsistent with the diagnosis of this genus by Bozsó et al. (2013): 1) F1 of the female antenna is 2.0 times as long as F2 (not 1.5–1.9 times as long as F2 as in the diagnosis); and 2) the foveal septum is broad (not absent or indistinct as in the diagnosis). These inconsistencies are found in other Lithosaphonecrus species: F1 is 2.1 times as long as F 2 in L. arcoverticus (Yang et al. 2019) and the foveal septum is broad in L. vietnamensis (Abe et al. 2014). Therefore, the diagnosis of the genus Lithosaphonecrus should be broadened to include these characteristics. The life history of the new species is mostly unknown. As a genus of the inquiline tribe Synergini, Lithosaphonecrus species were treated as inquilines by Bozsó et al. (2013). In fact, an unidentified Lithosaphonecrus species was observed to lay its eggs in a developing host gall (Fig. 67 in Bozsó et al., 2013). However, the inducer of the host gall of each Lithosaphonecrus species has never been confirmed (Bozsó et al. 2013; Yang et al. 2019; Pujade-Villar et al. 2020). Yang et al. (2019) suspected that this genus contains both inquilines and gall inducers, mainly based on the observation that two Lithosaphonecrus species, L. arcoverticus and L. decarinatus Liu, Zhu, & Pang, and one Saphonecrus species emerged from the same kind of gall, and no other candidate gall inducers, except for a few parasitic chalcidoid wasps, were collected from the gall, despite the large numbers of galls collected in long-termed sampling. Since Synergus itoensis Abe, Ide & Wachi is a known gall inducer within Synergini (Abe et al. 2011), the possibility that the Lithosaphonecrus species may be a primary gall inducer should be considered in further studies of the biology of these species. Faunal studies of cynipid inquilines and gall inducers throughout the distribution of Lithocarpus will provide essential information to understand their biology. Lithosaphonecrus mindatus sp. nov. is the first record of Cynipidae from Myanmar. In Myanmar, which has a distinct north-south polarity from lat. 35° N to lat. 10° N, and where elevation ranges from 0–5,881 m, there are species-rich forests of Quercus, Castanopsis, and Lithocarpus (Kress et al. 2003), suggesting potentially high cynipid diversity in Myanmar.Published as part of Ide, Tatsuya, Aung, Mu Mu & Tanaka, Nobuyuki, 2020, First record of Cynipidae from Myanmar with description of a new species of Lithosaphonecrus (Hymenoptera: Cynipidae: Synergini), pp. 344-350 in Zootaxa 4810 (2) on pages 345-348, DOI: 10.11646/zootaxa.4810.2.7, http://zenodo.org/record/393832
Employing M1 direct calibration/de-embedding approaches for large signal model validation at mm-wave frequencies
No full textIn this contribution, we employ direct calibration/de-embedding approaches to validate the large signal device model of state-of-the-art HBTs and CMOS technologies operating in the mm-wave frequency band WR6. The capability of placing the first tier calibration reference plane in close proximity to the DUT allows the large signal metric to be directly compared with foundry models.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic
Dynamic Estimation of Vital Signs with mm-wave FMCW Radar
No full textIn this paper, we propose a method for continuous monitoring of vital signs-in particular, respiration frequency-with a commercial mm-wave radar. The nearly constant frequency (NCF) model is adopted to represent chest displacement due to respiration and simulate radar response. Based on this model, an extended Kalman filter (EKF) based estimator is developed to track the breathing frequency of a person. The impact of dynamic model parameters is investigated in numerical simulation. The possibility to track breathing frequency with the proposed method is demonstrated by experimental data processing. Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Microwave Sensing, Signals & System
A 23-to-29GHz Receiver with mm-Wave N-Input-N-Output Spatial Notch Filtering and Autonomous Notch-Steering Achieving 20-to-40dB mm-Wave Spatial Rejection and -14dBm In-Notch IP1 dB
No full textDigital beamforming receivers (RXs) support MIMO operation and offer great flexibility and accuracy in multi-beam formation and calibration. However, compared with analog phased-array and hybrid systems, due to the absence of any rejection for spatial in-band blockers, the RX/ADC dynamic range and linearity should be high enough to prevent array saturation. Therefore, the use of self-steering spatial notch filters (SNFs) is necessary to aid the digital beamformers and reduce RX/ADC power consumption while strong blockers exist. To address that, the sub-6GHz RXs in [1], [2] synthesize a baseband spatial notch impedance and translate it to RF by passive mixers. However, this technique cannot be directly applied at mm-wave frequencies as the impedance translational performance of the passive mixers degrades significantly. Hence, the mm-wave beamformer in [3] realizes a cascadable SNF at an intermediate frequency (IF). However, the front-end mm-wave components like mixers and phase shifters have to tolerate strong blockers, thus degrading RX linearity. Besides, it uses multiple IF buffers and VGAs for signal scaling and combining, which could be power-hungry if a similar method is adopted to realize a mm-wave SNF. To improve on those limitations, we propose a scalable SNF structure, which (1) suppresses the strongest in-band blocker at mm-wave frequencies, (2) supports N-input-N-output MIMOs, and (3) requires no active blocks except the phase shifters. A two-step autonomous notch-steering technique is also developed to adjust the SNF notch direction power-efficiently and accurately.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic
Experiencing the armed struggle : the Soweto generation and after
No full textIncludes bibliographical references (p. 354-369).This study explores the experiences of the rank-and-file soldiers of Umkhonto we Sizwe and the Azanian People's Liberation Anny. Extensive interviews by the author and other researchers reveal the voices of the soldiers themselves. The African National Congress and Pan African Congress archives at the University of the Western Cape and the University of Fort Hare supplement and verify these oral testimonies, as do some published sources. Most previously published materials about the armed struggle against apartheid have already focused on diplomacy, strategy and tactics, operations, leadership, and human rights abuses to the neglect of the soldiers' actual experiences. This study complements these with significant new oral history materials from the Soweto generation of soldiers and their successors. When dealing with MK, many authors have documented issues of the camp structure in Angola, and operations inside South Africa, so much of this detail is only addressed briefly, leaving space to explore the soldiers' experiences. In the case of APLA, very little has been written on its history, and more detail is provided on these subjects. This study therefore deals with the soldiers' politicisation and motivation for joining the armed struggle, their experiences in leaving South Africa and training in exile, the crises in exile which limited their effectiveness for a time, their return to fight in South Africa, and their difficulties in the "new" South Africa. These materials reveal that vast problems remain facing these veterans of the struggle against apartheid, and that they have the potential, if properly supported and employed, to contribute substantially to the development of present day South Africa. Conversely, if their neglect continues, they also have the potential to bring vast harm to the country. Further use of the investigative tools of oral history, especially if extended to the former soldiers' vernacular languages, is necessary to augment the history of South Africa, and these soldiers' contributions
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