A MIXED PERMIAN–TRIASSIC BOUNDARY BRACHIOPOD FAUNA FROM GUIZHOU PROVINCE, SOUTH CHINA

Although many studies have been concerned with Changhsingian brachiopod faunas in South China, brachiopod faunas of the mixed nearshore clastic–carbonate facies have not been studied in detail. In this paper, a brachiopod fauna collected from the Changhsingian Wangjiazhai Formation and the Griesbachian Yelang Formation at the Liuzhi section (Guizhou Province, South China) is described. The Liuzhi section represents mixed clastic–carbonate facies and yields 30 species of 16 genera of brachiopod. Among the described and illustrated species, new morphological features of genera Peltichia, Prelissorhynchia and Spiriferellina are provided. Because of limited materials, four undetermined species instead of new species from these three genera are proposed. The Liuzhi brachiopod fauna from lower part of the Wangjiazhai Formation shares most genera with fauna of carbonate facies in South China, and the fauna from the upper part is similar to that from the Zhongzhai and Zhongying sections, representative shallow-water clastic facies sections in Guizhou Province. Consistent with the lithological feature of the Wangjiazhai Formation at the Liuzhi section, the Liuzhi brachiopod fauna shows similar changing pattern with fauna from sections of shallow-water clastic and carbonate facies, and all present a sudden decline of diversity prior to the Permian–Triassic boundary

To the Forgotten : for orchestra

Title from PDF of title page, viewed on April 2, 2014Dissertation advisor: Chen YiVitaThesis (Ph. D.)--Conservatory of Music and Dance. University of Missouri--Kansas City, 2013To the forgotten is inspired by the process of observing nature and realizing the interrelationship between humanity and nature by the method of self-preservation. I discovered a similar approach toward nature in three main references for this piece, including a Chinese poem “Moon Over Frontier Mountains” by Li Bai, the philosophy of Zhuangzi (369 BC-286 BC), and my journey in Northeast Taiwan. In the poem, the poetic process of picturing the remote landscape first, reminiscing about the grievous battle in the middle, and humanizing the scene with personal emotions in the end demonstrates the transformation between visual sensation, social consciousness, and self-reflection. This poetic approach reminds me of my Taiwan journey in which the magnificent scenery, a carnival, the sharing of human emotions, inheritance of tradition, and spiritual inspiration not only symbolize the process of self-preservation, but also resonate with Zhuangzi’s statement of achieving the unification of humanity and nature by avoiding the self-centered thinking. This piece is divided into three main contrasting sections that portray nature, people, and self to represent the programmatic approach of forgetting self in which the focus of perception transfers from visualization to participation and ends in self-preservation. The ideas of uncertainty, fragmentation, and interruption characterize every musical element in the first section. The opening gesture, constructed by a three-note motive G-Bb-F# going downward with an extreme registral expansion, symbolizes the visual transformation. The intervallic relationship and harmonic structure of the first section are based on the opening gesture and the following motive E-C-B-C#. The rhythmic complexity, motivic layering, and harmonic variety are particularly emphasized in the energetic second section. The enhanced harmonic energy and rhythmic pulse of alternating duple and triple in this carnival-like section contrast with the diatonically grounded last section in which the diatonic persistency on E flat, articulated by a transparent texture, resolves the preceding harmonic dissonance. In the coda, the return of the opening gesture, accompanied by the sustained diatonic sonority, resonates with the mysterious first section and invokes harmonic dissonance, dynamic change, and textural opposition to metaphorically reflect the process of the unification of humanity and natureAbstract -- Instrumentation -- Performance notes -- To the Forgotte

Enhancing Hydrogen Generation Through Nanoconfinement of Sensitizers and Catalysts in a Homogeneous Supramolecular Organic Framework.

Enrichment of molecular photosensitizers and catalysts in a confined nanospace is conducive for photocatalytic reactions due to improved photoexcited electron transfer from photosensitizers to catalysts. Herein, the self-assembly of a highly stable 3D supramolecular organic framework from a rigid bipyridine-derived tetrahedral monomer and cucurbit[8]uril in water, and its efficient and simultaneous intake of both [Ru(bpy)3 ]2+ -based photosensitizers and various polyoxometalates, that can take place at very low loading, are reported. The enrichment substantially increases the apparent concentration of both photosensitizer and catalyst in the interior of the framework, which leads to a recyclable, homogeneous, visible light-driven photocatalytic system with 110-fold increase of the turnover number for the hydrogen evolution reaction

[2-Formyl-4-methyl-6-({2-[2-(4-nitro­benzyl­amino)­ethyl­amino]­ethyl­imino}­meth­yl)phenolato]nickel(II) perchlorate

In the unsymmetrical title complex, [Ni(C20H23N4O4)]ClO4, the coordination geometry for the NiII atom can be described as square planar. The aromatic rings in the two ligands are almost vertical, with a dihedral angle of 85.3°. In the crystal, cations and anions are linked by weak C(N)—H⋯O hydrogen bonding

A nanocomposite of Au‐AgI core/shell dimer as a dual‐modality contrast agent for x‐ray computed tomography and photoacoustic imaging

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135097/1/mp9062.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/135097/2/mp9062_am.pd

Travelling wave solutions for Kolmogorov-type delayed lattice reaction–diffusion systems

[[abstract]]This work investigates the existence and non-existence of travelling wave solutions for Kolmogorov-type delayed lattice reaction–diffusion systems. Employing the cross iterative technique coupled with the explicit construction of upper and lower solutions in the theory of quasimonotone dynamical systems, we can find two threshold speeds c∗ and c∗ with c∗≥c∗>0. If the wave speed is greater than c∗, then we establish the existence of travelling wave solutions connecting two different equilibria. On the other hand, if the wave speed is smaller than c∗, we further prove the non-existence result of travelling wave solutions. Finally, several ecological examples including one-species, two-species and three-species models with various functional responses and time delays are presented to illustrate the analytical results.[[notice]]補正完畢[[journaltype]]國外[[incitationindex]]SCI[[ispeerreviewed]]Y[[booktype]]紙本[[countrycodes]]GB