207,547 research outputs found
Asian Pacific Islander Desi Awareness Month Keynote Lecture with Dr. Gordon H. Chang hosted by the APIDA Commission
No full textDr. Gordon H. Chang will speak on the history of anti-Asian violence in America on April 27, 2023, at 1:00 EDT for one hour. Dr. Chang recently stepped down as the Senior Associate Vice Provost for Under Graduate Education at Stanford and is a professor of history. He is also the Olive H. Palmer Professor in Humanities at Stanford University. He is the author of nine books, primarily on U.S. China relations and the Asian-American experience
Lydia H. Hart Diary
Full text linkDiary, 1823-1830, 1875 and loose papers 1813, 1831, and undated of Lydia H. Hart of Richmond, Virginia and later Walden, Orange County, New York. The Diary was started by Lydia H. Hart, the wife of Reverend William H. Hart, who was the rector of St. John’s Church in Richmond, VA and later St. Andrews Church in Walden, New York. Diary entries include day-to-day activities and meetings with local neighbors and church patron’s. These neighbors included Elizabeth Van Lew and her parents, which Lydia Hart writes about several times. Most dated entries also include discussion of specific bible verses or Rev. Hart’s sermons. Notable entries include a description of the funeral service for Rev. John Buchanan, former rector of St. John’s Church from 1795 to 1822. Diary entries are chronological and more frequent for 1823 and become less frequent in 1823. In 1828, Lydia Hart moved to New York and eventually to Walden, New York in May 1830.At the end of the diary entries is an entry form another author, possibly by Mary. W. Hart dated 1875. Lydia Hart died in 1831 and could not have made the entry.At the back of the diary and upside down to the diary entries are transcriptions of letters and poems of Lydia Hart’s to various newspapers and and personnel correspondence. Entries include a plea for support to the city of Richmond to take care of its ‘destitute children’, letters to the editor of local newspapers, and poems for the birth of a child or death of a patron.Loose papers include a letter dated Jan 8th 1813, a bequeath request from William H. Hart for the placement of a Tombstone for Lydia Hart, a table of contents for various letters or sermons, a letter from William Hart to a friend from Richmond, and 2 loose undated papers of unknown authorship. The letter from William Hart speaks of the events of Lydia’s death, and inquiries about events taking place in Richmond
On the Studies of Detrusor-Sphincter Synergia of Wistar Rats via Karhunen-Loève Expansion
Full text link[[abstract]]In normal Wistar rats, we have found that the voiding of the bladder has a synergic cooperation between the detrusor and the sphincter. On the contrary, the suprasacral spinal cord injured (SCI) rats usually exhibit dyssynergic contractions of the bladder and the external urethral sphincter (EUS). In this study, the cystometrograms (CMG) of the detrusor and the electromyograms (EMG) of the EUS of intact and SCI female Wistar rats are used to investigate the eigenmodes of synergic cooperation during micturition via Karhunen-Loève expansion (KLE). Here we show that the three different phases of urination of intact rats: initial, bursting and relaxation phase, have different number of eigenmodes. The SCI rats are also investigated with the KLE method. Results have indicated that our understanding of micturition mechanism of Wistar rats can be mightily improved.[[fileno]]2030149010046[[department]]電機工程學
Iterative C−H Functionalization Leading to Multiple Amidations of Anilides
No full textPolyaminobenzenes were synthesized by the ruthenium-catalyzed iterative C−H amidation of anilides using dioxazolones as an amino source. This strategy could be implemented by the sequential activation of C−H bonds of formerly generated compounds by cascade chelation assistance of newly installed amide groups. Computational studies provided a rationale. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinhei118191sciescopu
Direct C-H amidation of benzoic acids to introduce meta- and para-amino groups by tandem decarboxylation
No full textThe Ir-catalyzed mild C-H amidation of benzoic acids with sulfonyl azides was developed to give reactions with high efficiency and functional-group compatibility. Subsequent protodecarboxylation of ortho-amidated benzoic acid products afforded meta- or para-substituted (N-sulfonyl)aniline derivatives, the latter being inaccessible by other C-H functionalization approaches. The decarboxylation step was compatible with the amidation conditions, enabling a convenient one-pot, two-step process. Without a trace: Carboxylic acids are used as traceless directing groups in the Ir-catalyzed direct C-H amidation of arenes with sulfonyl azides under mild conditions. The tandem protodecarboxylation of the ortho-amidated benzoic acid products afforded meta- or para-substituted (N-sulfonyl)anilines, which are difficult to obtain by other C-H functionalization approaches. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim149481sciescopu
Contribution of Information and Communication Technology (ICT) in Country’S H-Index
Full text linkThe aim of this study is to examine the effect of Information and Communication Technology (ICT) development on country’s scientific ranking as measured by H-index. Moreover, this study applies ICT development sub-indices including ICT Use, ICT Access and ICT skill to find the distinct effect of these sub-indices on country’s H-index. To this purpose, required data for the panel of 14 Middle East countries over the period 1995 to 2009 is collected. Findings of the current study show that ICT development increases the H-index of the sample countries. The results also indicate that ICT Use and ICT Skill sub-indices positively contribute to higher H-index but the effect of ICT access on country’s H-index is not clear
Ruthenium-catalyzed direct C-H amidation of arenes including weakly coordinating aromatic ketones
No full textC-H activation: The ruthenium-catalyzed direct sp2 C-H amidation of arenes by using sulfonyl azides as the amino source is presented (see scheme). A wide range of substrates were readily amidated including arenes bearing weakly coordinating groups. Synthetic utility of the thus obtained products was demonstrated in the preparation of biologically active heterocycles. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.11211201sciescopu
Iridium-catalyzed direct C-H amidation with weakly coordinating carbonyl directing groups under mild conditions
No full textAn iridium-catalyzed direct C-H amidation of weakly coordinating substrates, in particular of those bearing ester and ketone groups, under very mild conditions has been developed. The observed high reaction efficiency was achieved by the combined use of acetic acid and lithium carbonate as additives. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.13413811sciescopu
Comparison of the Reactivities and Selectivities of Group9 [Cp*M-III] Catalysts in C-H Functionalization Reactions
No full textPentamethylcyclopentadienyl (Cp*)-based Group9 metal (Co, Rh, or Ir) catalysts have emerged as powerful tools for C-H functionalization reactions. Whilst a diverse range of organic transformations have been developed by using [Cp*M-III] catalysts, they have often exhibited orthogonal reactivities and varied selectivities that depended on the choice of the central metal atom. An understanding of the physicochemical properties of the metals, as well as of their reaction mechanisms, has led to significant expansion of the synthetic scope of C-H functionalization reactions. This Focus Review summarizes and discusses the comparative catalytic reactivities and selectivities of the [Cp*M-III] catalysts, with an emphasis on metal-dependent pathway-switching by considering the mechanistic rationale ⓒ 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinhei
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