10,978 research outputs found

    Complete solo piano works of Zhou Long

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    Access to thesis restricted until 07/2023.Zhou Long is a contemporary composer of Chinese American descent, who belongs to a generation of Chinese composers that began introducing traditional Chinese music to western audiences. He gained international recognition after receiving the 2011 Pulitzer Prize for his opera, Madame White Snake (2011). Very few performances, recordings, and publications currently exist on Zhou’s piano music, and this doctoral lecture recital is the first time an artist has performed the complete collection of Zhou’s solo piano pieces. The pieces include: Mongolian Folk- Tune Variations, Wu Kui, Pianogongs, and Pianobells. In his piano music, Zhou makes use of unconventional extended piano techniques, imitates and evokes Chinese traditional instruments, and likes to make connections with other art genres. Also, the prominence of percussive elements in Zhou’s music is of a great importance. In this lecture recital, the author has mainly focused on 1) the background information of Zhou Long and his solo piano works; 2) the influence of Chinese traditional instruments, ancient literatures and aesthetic concepts, in addition to folk elements on his piano music; 3) how the composer combined those elements with western music and compositional skills; and 4) the exploration of the percussive usage of the piano along with various sound effect. Much of the discussion were from the author’s own observations; it also include insights from an interview the author conducted with the composer. Through the combined presentation of the lecture and performance of Zhou Long’s four piano pieces, the author intended to help bring exposure to his piano works, and to serve as a guide for piano students and teachers interested in exploring Zhou’s piano music.Thesis (D.A.

    Jeholornis prima Zhou 2002

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    EMENDED DIAGNOSIS OF <i>J.</i> <i>PRIMA</i> <p> Based on the morphological study of this specimen, we provide the following revised diagnosis for <i>J. prima</i>. A large stem bird with the following combination of features: premaxilla edentulous with short maxillary process; two teeth with blunt crowns in maxilla and three relatively smaller teeth in dentary (new); paired, sheet-like preorbital ossifications present near the nasals (new, autapomorphy); C-shaped lacrimal with short rostrodorsal ramus and lacrimal foramen (new); unreduced postorbital forming a complete postorbital bar with jugal (new); pterygoid rami of vomer much longer than the fused rostral portion, expanded in the middle and lacking the caudodorsal process (new); palatine with broad pterygoid wing and jugal process (new); narrow and restricted mandibular fenestra between prearticular and surangular (new); 27 caudal vertebrae in total, with the transition point occurring after the fifth vertebra; lateral trabecula of sternum absent; caudalmost pair of sternal ribs expanded; first phalanx of the third manual digit twice as long as the second phalanx; ratio of forelimb (humerus plus ulna plus carpometacarpus) to hindlimb (femur plus tibiotarsus plus tarsometatarsus) of ~1.2:1; dorsal margin of the ilium nearly straight and craniodorsal–caudoventrally oriented (modified from Zhou & Zhang, 2002; O’Connor <i>et al.</i>, 2012; Zheng <i>et al.</i>, 2020).</p>Published as part of <i>Hu, Han, Wang, Yan, Fabbri, Matteo, O, Jingmai K., Connor, Mcdonald, Paul G., Wroe, Stephen, Yin, Xuwei, Zheng, Xiaoting, Zhou, Zhonghe & Benson, Roger B. J., 2023, Cranial osteology and palaeobiology of the Early Cretaceous bird Jeholornis prima (Aves: Jeholornithiformes), pp. 93-112 in Zoological Journal of the Linnean Society 198 (1)</i> on page 107, DOI: 10.1093/zoolinnean/zlac089, <a href="http://zenodo.org/record/7926859">http://zenodo.org/record/7926859</a&gt

    Application of particle swarm optimization in adaptive self-interference cancellation

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    This thesis investigates the application of particle swarm optimization in self-interference cancellation. To achieve cancellation, the receiver has to differentiate between the transmit and receive signal. The transmit signal is already known at the transmitting side but it undergoes some distortion before it reaches the receiving end. An adaptive filter proves to be useful in estimating the distortion, but its weight remains an unknown factor. This thesis uses the particle swarm optimization algorithm to dynamically adjust the weights of the filter.Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-08-01The student, Jingchao Zhou, accepted the attached license on 2020-07-07 at 14:08.The student, Jingchao Zhou, submitted this Thesis for approval on 2020-07-07 at 14:14.This Thesis was approved for publication on 2020-07-07 at 17:20.DSpace SAF Submission Ingestion Package generated from Vireo submission #15513 on 2020-10-02 at 15:31:36Made available in DSpace on 2020-10-07T22:44:25Z (GMT). No. of bitstreams: 2 ZHOU-THESIS-2020.pdf: 1884339 bytes, checksum: 5d78c3eb8481f8526d8eac1fe13de97e (MD5) LICENSE.txt: 4210 bytes, checksum: aa21ee415c67c81c143dd263675bb8a3 (MD5) Previous issue date: 2020-07-07Embargo set by: Seth Robbins for item 116208 Lift date: 2022-10-07T22:44:53Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemAuthor requested U of Illinois access only (OA after 2yrs) in Vireo ETD systemU of I Onl

    Uncertainties in landslide susceptibility prediction: Influence rule of different levels of errors in landslide spatial position

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    The accuracy of landslide susceptibility prediction (LSP) mainly depends on the precision of the landslide spatial position. However, the spatial position error of landslide survey is inevitable, resulting in considerable uncertainties in LSP modeling. To overcome this drawback, this study explores the influence of positional errors of landslide spatial position on LSP uncertainties, and then innovatively proposes a semi-supervised machine learning model to reduce the landslide spatial position error. This paper collected 16 environmental factors and 337 landslides with accurate spatial positions taking Shangyou County of China as an example. The 30–110 m error-based multilayer perceptron (MLP) and random forest (RF) models for LSP are established by randomly offsetting the original landslide by 30, 50, 70, 90 and 110 m. The LSP uncertainties are analyzed by the LSP accuracy and distribution characteristics. Finally, a semi-supervised model is proposed to relieve the LSP uncertainties. Results show that: (1) The LSP accuracies of error-based RF/MLP models decrease with the increase of landslide position errors, and are lower than those of original data-based models; (2) 70 m error-based models can still reflect the overall distribution characteristics of landslide susceptibility indices, thus original landslides with certain position errors are acceptable for LSP; (3) Semi-supervised machine learning model can efficiently reduce the landslide position errors and thus improve the LSP accuracies

    The Death of the Author, or Not: An Examination of Contemporary Western Literary Theory (Book Review)

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    Zhou, M. (2017) The Death of the Author, or Not: An Examination of Contemporary Western Literary Theory (Book Review). Journal of East-West Thought, 2(7), 103-104.Jiang Zhang, The Death of the Author, or Not: An Examination of Contemporary Western Literary Theory. Beijing; China Social Sciences Press, 2017. 500 pp

    Angiotensin II induces soluble fms-Like tyrosine kinase-1 release via calcineurin signaling pathway in pregnancy

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    Maternal endothelial dysfunction in preeclampsia is associated with increased soluble fms-like tyrosine kinase-1 (sFlt-1), a circulating antagonist of vascular endothelial growth factor and placental growth factor. Angiotensin II (Ang II) is a potent vasoconstrictor that increases concomitant with sFlt-1 during pregnancy. Therefore, we speculated that Ang II may promote the expression of sFlt-1 in pregnancy. Here we report that infusion of Ang II significantly increases circulating levels of sFlt-1 in pregnant mice, thereby demonstrating that Ang II is a regulator of sFlt-1 secretion in vivo. Furthermore, Ang II stimulated sFlt-1 production in a dose- and time-dependent manner from human villous explants and cultured trophoblasts but not from endothelial cells, suggesting that trophoblasts are the primary source of sFlt-1 during pregnancy. As expected, Ang II-induced sFlt-1 secretion resulted in the inhibition of endothelial cell migration and in vitro tube formation. In vitro and in vivo studies with losartan, small interfering RNA specific for calcineurin and FK506 demonstrated that Ang II-mediated sFlt-1 release was via Ang II type 1 receptor activation and calcineurin signaling, respectively. These findings reveal a previously unrecognized regulatory role for Ang II on sFlt-1 expression in murine and human pregnancy and suggest that elevated sFlt-1 levels in preeclampsia may be caused by a dysregulation of the local renin/angiotensin system

    DMM Prize 2018 winner: Wenqing Zhou

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    Disease Models & Mechanisms (DMM) is delighted to announce that the winner of the DMM Prize 2018 is Wenqing Zhou, for her paper entitled ‘Neutrophil-specific knockout demonstrates a role for mitochondria in regulating neutrophil motility in zebrafish’ (Zhou et al., 2018a). The prize of $1000 is awarded to the first author of the paper that is judged by the journal's editors to be the most outstanding contribution to the journal that year. To be considered for the prize, the first author must be a student or a postdoc of no more than 5 years standing

    Unique caudal plumage of Jeholornis and complex tail evolution in early birds

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    The Early Cretaceous bird Jeholornis was previously only known to have a distally restricted ornamental frond of tail feathers. We describe a previously unrecognized fan-shaped tract of feathers situated dorsal to the proximal caudal vertebrae. The position and morphology of these feathers is reminiscent of the specialized upper tail coverts observed in males of some sexually dimorphic neornithines. As in the neornithine tail, the unique “two-tail” plumage in Jeholornis probably evolved as the result of complex interactions between natural and sexual selective pressures and served both aerodynamic and ornamental functions. We suggest that the proximal fan would have helped to streamline the body and reduce drag whereas the distal frond was primarily ornamental. Jeholornis reveals that tail evolution was complex and not a simple progression from frond to fan.Fil: O'Connor, Jingmai. Chinese Academy Of Sciences. Institute of Vertebrate Paleontology and Paleoanthropology; República de ChinaFil: Wang, Xiaoli. Linyi University; ChinaFil: Sullivan, Corwin. Chinese Academy Of Sciences. Institute of Vertebrate Paleontology and Paleoanthropology; República de ChinaFil: Zheng, Xiaoting. Linyi University; China. Shandong Tianyu Museum of Nature; ChinaFil: Tubaro, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; ArgentinaFil: Zhang, Xiaomei. Shandong Tianyu Museum of Nature; ChinaFil: Zhou, Zhonghe. Chinese Academy Of Sciences. Institute of Vertebrate Paleontology and Paleoanthropology; República de Chin

    Advances in heterologous biosynthesis of plant and fungal natural products by modular co-culture engineering

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    Heterologous biosynthesis has been long pursued as a viable approach for high efficiency production of natural products with various industrial values. Conventional methods for heterologous biosynthesis use the mono-culture of an engineered microbe for accommodating the whole target biosynthetic pathway to produce the desired product. The emergence of modular co-culture engineering, which divides the pathway between multiple co-culture strains, presents a new perspective to conduct heterologous biosynthesis and improve the bioproduction performance of natural products. This review highlights recent advances in utilizing the modular co-culture engineering approaches to address the challenges of plant and fungal natural productbiosynthesis. Potential directions for future research in this promising field are also discussed
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