181,433 research outputs found
A Multivariate Surface-Based Analysis of the Putamen in Premature Newborns: Regional Differences within the Ventral Striatum
No full textMany children born preterm exhibit frontal executive dysfunction, behavioral problems including attentional deficit/hyperactivity disorder and attention related learning disabilities. Anomalies in regional specificity of cortico-striato-thalamo-cortical circuits may underlie deficits in these disorders. Nonspecific volumetric deficits of striatal structures have been documented in these subjects, but little is known about surface deformation in these structures. For the first time, here we found regional surface morphological differences in the preterm neonatal ventral striatum. We performed regional group comparisons of the surface anatomy of the striatum (putamen and globus pallidus) between 17 preterm and 19 term-born neonates at term-equivalent age. We reconstructed striatal surfaces from manually segmented brain magnetic resonance images and analyzed them using our in-house conformal mapping program. All surfaces were registered to a template with a new surface fluid registration method. Vertex-based statistical comparisons between the two groups were performed via four methods: univariate and multivariate tensor-based morphometry, the commonly used medial axis distance, and a combination of the last two statistics. We found statistically significant differences in regional morphology between the two groups that are consistent across statistics, but more extensive for multivariate measures. Differences were localized to the ventral aspect of the striatum. In particular, we found abnormalities in the preterm anterior/inferior putamen, which is interconnected with the medial orbital/prefrontal cortex and the midline thalamic nuclei including the medial dorsal nucleus and pulvinar. These findings support the hypothesis that the ventral striatum is vulnerable, within the cortico-stiato-thalamo-cortical neural circuitry, which may underlie the risk for long-term development of frontal executive dysfunction, attention deficit hyperactivity disorder and attention-related learning disabilities in preterm neonates. © 2013 Shi et al
DIETARY CONDITIONS AND DIFFERENTIAL ACCESS TO FOOD RESOURCES AMONG THE VARIOUS CLASSES DURING THE HAN PERIOD
No full textIn this thesis, I study how food resources and dietary conditions were determined by social and economic status during the Han period in China, B.C. 206~A.D.220. Even though earlier scholars have published research concerning the Chinese food culture of this period, these studies were limited in that they only illustrated the dietary culture of the upper class or the available food resources in one geographic area. Also, without any persuasive data, it has been assumed by these earlier scholars that there were big differences in food resources and food consumption between the upper and lower classes. In this thesis, for comparison among the classes, I divide the social and economic classes into five stratified groups: nobles, officials, peasants, soldiers and convicts. After a brief introduction of the nature of each social class, I examine the food resources and nutritional condition of each group using information such as the wealth and income of each group, the market price of food resources, the agricultural products of peasants, and the amount of food distribution to soldiers and convicts. I found these data from archaeological remains, received historical records and pictorial data, and excavated texts. This research shows a broader view of Chinese dietary condition focusing not only on the variety of food resources of nobles, but also on the different food accessibilities among the officials, and the food deficiencies of peasants. It also deals with the situations of food supply for soldiers and convicts in an effort to reveal the true dietary consumption and nutritional conditions for all Chinese. This research proves that the various classes during the Han period in China had different food resources and dietary conditions
Changshu Qu shi Tie qin tong jian lou cang Song Yuan ben shu mu /
No full textIn case, with Yang, Shaohe. Liaocheng Yang shi Hai yuan ge cang shu mu.Mode of access: Internet.EAST; 9628.3537: With: Liaocheng Yang shi Hai yuan ge cang shu m
Conocephalus (Conocephalus) emeiensis Shi & Zheng 1999
No full text6. Conocephalus (Conocephalus) emeiensis Shi & Zheng, 1999 (Figs. 6, 10 C–D) http://lsid.speciesfile.org/urn:lsid: Orthoptera.speciesfile.org:TaxonName:16830 Material examined. 2♂ 3♀, Hushizhen, Chishui, Guizhou, 22 August, 2017, coll. Jiyuan Feng and Yanqing Li. Distribution. China (Guizhou, Sichuan).Published as part of Li, Yanqing & Shi, Fuming, 2018, Notes on the genus Conocephalus Thunberg, 1815 (Orthoptera: Tettigoniidae: Conocephalinae) in Southwest China with description of one new species, pp. 148-158 in Zootaxa 4438 (1) on page 153, DOI: 10.11646/zootaxa.4438.1.7, http://zenodo.org/record/129424
<i>Aralia lihengiana</i> J. Wen, L. Deng & X. Shi, nouvelle espèce d'Araliaceae de Chine.
No full textDescription d\u27Aralia lihengiana J. Wen, L. Deng & X. Shi du sud-ouest de la Chine. Cette espèce appartient à Aralia sect. Pentapanax (Seem.) J. Wen et semble être proche d\u27Aralia gigantea J. Wen d\u27Himalaya. Ces deux espèces ont des folioles à marge à peine serretée et des unités inflorescentielles racémeuses. Le nouveau taxon est unique dans le genre par l\u27ovaire à 3-4 ou rarement 5 loges, alors que les ovaires des autres espèces d\u27Aralia ont en général 5 loges.Aralia lihengiana J. Wen, L. Deng & X. Shi is described from southwestern China. It is a member of Aralia sect. Pentapanax (Seem.) J. Wen and an apparent close relative of the Himalayan A. gigantea J. Wen. Both species have sparsely serrate leaflet margins and racemose inflorescence units, but the new taxon is unique in the genus in bearing 3-4 or rarely 5-locular ovaries whereas other species of Aralia mostly have 5-locular ovaries
Mirollia lanceolata Shi & Wang 2005
No full text15. Mirollia lanceolata Shi & Wang, 2005 (Figures 2 H, 6 D–F, 10 Q) Mirollia lanceolata Shi & Wang 2005, In: Yang, M.F. & Jin, D.C. (Eds.) Insects of Dashahe in Guizhou Province: 75. Material examined. Holotype, male, Dashahe, Daozhen, Guizhou, 19 Aug. 2004, coll. Fu-Ming Shi. Redescription. Male. Stridulatory area of left tegmen long oval, 3.4 mm long, 1.9 mm wide (Fig. 10 Q). Cerci short, not reaching apex of subgenital plate (Fig. 6 D); strongly incurved in apical third; apex with a minute apical spine (Fig. 6 F). Phallus with two pairs of sclerites: lateral sclerites long, basal part thick, distal part lanceolate; medial sclerites bilobate, rather small, dorsal lobe denticulate on top. Subgenital plate strongly curved upwards before middle; basal part broad, medial area narrow and apical part slightly widened, posterior margin longitudinally split into two wide lobes (Fig. 6 E). Measurements (mm). Male. Body: 15.0; body with wings: 32.5; pronotum: 4.0; tegmen length: 24.0; tegmen width: 4.5; hind wing: 28.5; profemur: 4.2; mesofemur: 6.3; postfemur: 13.0. Distribution. China (Guizhou).Published as part of Wang, Gang, Wang, Hai-Jian & Shi, Fu-Ming, 2015, Remarks of the genus Mirollia (Orthoptera: Tettigoniidae: Phaneropterinae) from China, pp. 307-333 in Zootaxa 4021 (2) on page 316, DOI: 10.11646/zootaxa.4021.2.4, http://zenodo.org/record/23579
Conanalus robustus Shi, Mao & Ou 2008
No full textConanalus robustus Shi, Mao & Ou, 2008 http://lsid.speciesfile.org/urn:lsid: Orthoptera.speciesfile.org:TaxonName: 16610 Figure 3 A–D, Map 1 Conanalus robustus Shi, Mao & Ou, 2008. Zootaxa, 1949: 35; Eades, Otte, Cigliano & Braun, 2015: Orthoptera Species File Online (Version 5.0/5.0). Material examined. Holotype: male, Puer, Simao, Yunnan, 30 July 2007, collected by Fu-Ming Shi and Shao-Li Mao; paratypes: 2 males and 1 female, other data as holotype. The other specimens: 2 females, Puer, Yunnan, 28 July 2007, collected by Ji-Shan Xu; 2 males and 1 female, Puer, Yunnan, 28 July 2007, collected by Ben-Yong Mao. Distribution. China (Yunnan).Published as part of Du, Bao-Jie, Song, Qiong & Shi, Fu-Ming, 2015, Notes on the genus Conanalus Tinkham, 1943 (Orthoptera: Tettigoniidae: Conocephalinae) with one new species from Yunnan, China, pp. 577-582 in Zootaxa 3964 (5) on page 580, DOI: 10.11646/zootaxa.3964.5.8, http://zenodo.org/record/23202
Two-phase optimized experimental design for fatigue limit testing
No full textThis study proposes an innovative Two-phase method, based on the Langlie method and the D-optimality criterion, to overcome the intrinsic shortcomings of the staircase method used in estimating the fatigue limit distribution. This paper identifies the current challenges and provides an overview of existing solutions, setting the goal of developing an efficient data collection protocol. It further explains the application of D-optimality criterion and describes the Two-phase protocol, accompanied by a relevant example. The most significant advantage of this approach is its minimal requirement for pre-test information. A simulation-based study was executed to analyze the sensitivity of the input parameters and compare the effectiveness of the proposed method with the traditional staircase and Bayesian optimized method. The numerical simulations reveal that the proposed method offers improved estimation performance for the mean and standard deviation of the fatigue limit distribution, even with minimal pre-test information
Y(4143) is probably a molecular partner of Y(3930)
No full textAfter discussing the various possible interpretations of the Y(4143) signal observed by the CDF collaboration in the J/Sigma phi mode, we tend to conclude that Y(4143) is probably a D(s)(*)D(s)(*) molecular state with J(PC)=0(++) or 2(++) while Y(3930) is its D(*)D(*) molecular partner as predicted in our previous work [X. Liu, Z. G. Luo, Y. R. Liu, and Shi-Lin Zhu, Eur. Phys. J. C 61, 411 (2009)]. Both the hidden-charm and open-charm two-body decays occur through the rescattering of the vector components within the molecular states while the three- and four-body open-charm decay modes are forbidden kinematically. Hence, their widths are narrow naturally. CDF, BABAR and Belle collaborations may have discovered heavy molecular states already. We urge experimentalists to measure their quantum numbers and explore their radiative decay modes in the future.Astronomy & AstrophysicsPhysics, Particles & FieldsSCI(E)50ARTICLE1null8
MeSH term explosion and author rank improve expert recommendations
No full textInformation overload is an often-cited phenomenon that reduces the productivity, efficiency and efficacy of scientists. One challenge for scientists is to find appropriate collaborators in their research. The literature describes various solutions to the problem of expertise location, but most current approaches do not appear to be very suitable for expert recommendations in biomedical research. In this study, we present the development and initial evaluation of a vector space model-based algorithm to calculate researcher similarity using four inputs: 1) MeSH terms of publications; 2) MeSH terms and author rank; 3) exploded MeSH terms; and 4) exploded MeSH terms and author rank. We developed and evaluated the algorithm using a data set of 17,525 authors and their 22,542 papers. On average, our algorithms correctly predicted 2.5 of the top 5/10 coauthors of individual scientists. Exploded MeSH and author rank outperformed all other algorithms in accuracy, followed closely by MeSH and author rank. Our results show that the accuracy of MeSH term-based matching can be enhanced with other metadata such as author rank
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