141,960 research outputs found
Dendrobium clementsii D. Verma & Barbhuiya 2014, com. nov.
No full textDendrobium clementsii (D.L.Jones) D.Verma & Barbhuiya com. nov. Basionym: Flickingeria clementsii Jones (2004: 9). Type:— AUSTRALIA. Queensland: north of road to Tozers Gap, 1976, Wrigley 271 (holotype CANB).Published as part of Verma, Durgesh & Barbhuiya, Hussain Ahmed, 2014, Neotypification of Dendrobium darjeelingensis and a new combination in Dendrobium for Flickingeria clementsii (Orchidaceae), pp. 296 in Phytotaxa 170 (4) on page 296, DOI: 10.11646/phytotaxa.170.4.8, http://zenodo.org/record/513912
Aspidophorodon (Aspidophorodon) harvensis Verma 1967
No full textAspidophorodon (Aspidophorodon) harvensis Verma, 1967 Aspidophorodon harvensis Verma, 1967: 507; Eastop & Hille Ris Lambers, 1976: 96; Blackman & Eastop, 1994: 569. Aspidophorodon (Aspidophorodon) harvensis Verma: Remaudière & Remaudière, 1997: 73; Stekolshchikov & Novgorodova, 2010: 44. Specimens examined. Paratype: apterous viviparous female, INDIA: Kashmir (Harven), 14.v. 1964, on Salix sp., coll. K. D. Verma (BMNH). Distribution. India. Host plant. Salix sp. Biology. This species feeds on undersides of leaves of Salix, sitting tightly along the veins (Verma, 1967). The life cycle is unknown.Published as part of Chen, Jing, Zhang, Bin, Zhu, Xichao, Jiang, Liyun & Qiao, Gexia, 2015, Review of the aphid genus Aspidophorodon Verma, 1967 with descriptions of three new species from China (Hemiptera: Aphididae: Aphidinae), pp. 551-576 in Zootaxa 4028 (4) on pages 558-559, DOI: 10.11646/zootaxa.4028.4.6, http://zenodo.org/record/24149
On multiplicities of simple subquotients in generalized Verma modules
No full textsummary:We reduce the problem on multiplicities of simple subquotients in an -stratified generalized Verma module to the analogous problem for classical Verma modules
The first cohomology of D(2,1;\alpha) with coefficients in baby Verma modules
No full textOver a field of characteristic p > 3, the first cohomology group of Lie
superalgebra D(2,1;\alpha) with coefficients in baby Verma modules is
determined by calculating the outer superderivations of D(2,1;\alpha)
Vortex Vein Imaging: What Can It Tell Us?
No full textAditya Verma,1,2 Tommaso Bacci,3,4 David Sarraf,5 K Bailey Freund,3,4 SriniVas R Sadda1,2 1Doheny Eye Institute, Los Angeles, CA, USA; 2Department of Ophthalmology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA; 3Vitreous Retina Macula Consultants of New York, New York, NY, USA; 4Department of Ophthalmology, New York University Grossman School of Medicine, New York, NY, USA; 5Stein Eye Institute, David Geffen School of Medicine at University of California, Los Angeles, CA, 90095, USACorrespondence: SriniVas R Sadda Email [email protected]: This review article summarizes the patho-anatomy of the vortex veins, the major drainage channels for the choroid, and describes the various pathways of diseases associated with vortex vein abnormalities. This report also details the technical advancements to image the vortex veins, such as ultra-widefield indocyanine green angiography, which are critical to elucidate the importance of the vortices in various retino-choroidal disorders. Future applications of these advanced imaging systems to better understand the role of the vortex veins in health and disease are also discussed.Keywords: choroid, optical coherence tomography angiography, pachychoroid disease, ultra-widefield imaging, vortex vein
On the composition structure of the twisted Verma modules for
No full textsummary:We discuss some aspects of the composition structure of twisted Verma modules for the Lie algebra , including the explicit structure of singular vectors for both and one of its Lie subalgebras , and also of their generators. Our analysis is based on the use of partial Fourier tranform applied to the realization of twisted Verma modules as -modules on the Schubert cells in the full flag manifold for
Standards Based Practices of Online Teacher Professional Development
No full textSTANDARDS BASED PRACTICES OF ONLINE TEACHER PROFESSIONAL DEVELOPMENT
Sugandha Verma
University of Pittsburgh, 2013
Online teaching and learning is evolving with technology as a new area of research; it is less than a quarter century old, and new terminology is constantly being added. Online teaching and learning is exponentially growing globally, especially in higher education. There is a strong need for research in all areas of online teaching and learning to deeply understand and connect ideas from the existing literature to practice.
The purpose of this study was to consider my own practices of asynchronous online teaching and align them with established standards to learn appropriate standards based practices of teacher professional development (PD) to mentor new online teachers. It is important to instill good practices in future online instructors to set the trend and tradition of standards based practices. The research, both literature and survey based, also aids in filling some gaps related to good practices of teaching online.
The standards for online teaching, courses, programs, and institutions were created by the International North American Council of Online Learning (iNACOL) in 2007, last updated in 2011. Constant updating of standards is needed to keep up with technological growth.
As a part of the methodology, I have integrated the iNACOL standards of online teaching with the National Staff Development Council (NSDC) standards for PD to establish criteria as a basis for survey items. Participants of an online course were surveyed with an online survey
system. The data were gathered and analyzed for standards based practices, cross tabulation of items of interest, and emerging themes from open-ended (OE) items.
Strengths and weaknesses of standards based practices are discussed. The themes from the OE items elucidated from the data were interaction, independent and self-disciplined learning, and enjoyment of online learning. The research concluded that online learning involves independent learning, which takes place in a discussion based socio-constructive online environment. This research will ideally help in establishing good practices of teaching and mentoring the first generation of online instructors, who will in turn set the trend and traditions for the future
Verma and simple modules for quantum groups at non-abelian groups
No full textThe Drinfeld double D of the bosonization of a finite-dimensional Nichols algebra B(V) over a finite non-abelian group G is called a quantum group at a non-abelian group. We introduce Verma modules over such a quantum group D and prove that a Verma module has simple head and simple socle. This provides two bijective correspondences between the set of simple modules over D and the set of simple modules over the Drinfeld double D(G). As an example, we describe the lattice of submodules of the Verma modules over the quantum group at the symmetric group S3 attached to the 12-dimensional Fomin–Kirillov algebra, computing all the simple modules and calculating their dimensions.Fil: Pogorelsky, Barbara. Universidade Federal do Rio Grande do Sul; BrasilFil: Vay, Cristian Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Estudios de Matemática. Universidad Nacional de Córdoba. Centro de Investigación y Estudios de Matemática; Argentin
Some properties of generalized reduced Verma modules over -graded modular Lie superalgebras
No full textsummary:We study some properties of generalized reduced Verma modules over -graded modular Lie superalgebras. Some properties of the generalized reduced Verma modules and coinduced modules are obtained. Moreover, invariant forms on the generalized reduced Verma modules are considered. In particular, for -graded modular Lie superalgebras of Cartan type we prove that generalized reduced Verma modules are isomorphic to mixed products of modules
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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