Promotion and evacuation on standard Young tableaux of rectangle and staircase shape

(Dual-)promotion and (dual-)evacuation are bijections on SYT(\lambda) for any partition \lambda. Let c^r denote the rectangular partition (c,...,c) of height r, and let sc_k (k > 2) denote the staircase partition (k,k-1,...,1). B. Rhoades showed representation-theoretically that promotion on SYT(c^r) exhibits the cyclic sieving phenomenon (CSP). In this paper, we demonstrate a promotion- and evacuation-preserving embedding of SYT(sc_k) into SYT(k^{k+1}). This arose from an attempt to demonstrate the CSP of promotion action on SYT(sc_k).Comment: 14 pages, typos correcte

Recognizing Uncertainty in Speech

We address the problem of inferring a speaker's level of certainty based on prosodic information in the speech signal, which has application in speech-based dialogue systems. We show that using phrase-level prosodic features centered around the phrases causing uncertainty, in addition to utterance-level prosodic features, improves our model's level of certainty classification. In addition, our models can be used to predict which phrase a person is uncertain about. These results rely on a novel method for eliciting utterances of varying levels of certainty that allows us to compare the utility of contextually-based feature sets. We elicit level of certainty ratings from both the speakers themselves and a panel of listeners, finding that there is often a mismatch between speakers' internal states and their perceived states, and highlighting the importance of this distinction.Comment: 11 page

The magnetic environment of the Orion-Eridanus superbubble as revealed by Planck

Using the 353-GHz polarization observations by the Planck satellite we characterize the magnetic field in the Orion-Eridanus superbubble, a nearby expanding structure that spans more than 1600 square degrees in the sky. We identify a region of both low dispersion of polarization orientations and high polarization fraction associated with the outer wall of the superbubble identified in the most recent models of the large-scale shape of the region. We use the Davis-Chandrasekhar-Fermi method to derive plane-of-the-sky magnetic field strengths of tens of microGauss toward the southern edge of the bubble. The comparison of these values with existing Zeeman splitting observations of HI in emission suggests that the large-scale magnetic field in the region was primarily shaped by the expanding superbubble.Comment: 7 pages, 8 figures. Accepted for publication as a Letter in A&A, section 1. Letters to the Editor (08/12/2017

Attachment of Nucleosides to Solid‐Phase Supports

Specific step‐by‐step instructions are given for coupling nucleosides to LCAA‐CPG supports (supports consisting of a long‐chain alkylamine linked to controlled‐pore glass). Protocols are given for a succinic acid linker and a hydroquinone‐O,O′‐diacetic acid linker. The former is the most widely used linker arm, and the starting materials are widely available. The latter offers greater compatibility with base‐sensitive sequence modifications and great synthetic throughput because it can be cleaved under milder and faster conditions. Additional guidelines are given for selecting a linker arm and coupling protocol. Almost any application requiring synthetic oligonucletodies can be satisfied using one of these linker arms.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/143722/1/cpnc0302.pd

Magnetic interactions and ordering in some transition metal alloys

Imperial Users onl

Kompaneets Model Fitting of the Orion-Eridanus Superbubble

Winds and supernovae from OB associations create large cavities in the interstellar medium referred to as superbubbles. The Orion molecular clouds are the nearest high mass star-forming region and have created a highly elongated, 20 degree x 45 degree, superbubble. We fit Kompaneets models to the Orion-Eridanus superbubble and find that a model where the Eridanus side of the superbubble is oriented away from the Sun provides a marginal fit. Because this model requires an unusually small scaleheight of 40 pc and has the superbubble inclined 35 degrees from the normal to the Galactic plane, we propose that this model should be treated as a general framework for modelling the Orion-Eridanus superbubble, with a secondary physical mechanism not included in the Kompaneets model required to fully account for the orientation and elongation of the superbubble.Comment: 15 pages, 5 figures, 2 tables, accepted by MNRAS, minor grammatical change

Organic Apple Production in Washington State: An Input-Output Analysis

This paper provides an Input-Output (I/O) based economic impact analysis for organic apple production in Washington State. The intent is to compare the economic “ripple” effect of organic production with conventional production. The analysis is presented in two scenarios: first we compare the economic impact of organic versus conventional apple production for a l demand increase of one million US$ as measured in sales. The second analysis looks at the economic impact of organic and conventional apple production in terms of given unit of land (405 hectares of production). Both state-wide output (sales) and employment (jobs) impacts are estimated under each scenario. Results are presented in terms of direct, indirect, and induced economic impact. Organic apple production was more labor intensive than conventional production. While, the organic apple sector used less intermediate inputs per unit of output than conventional production it also produced higher returns to labor and capital. As a result, the indirect economic effect was lower for the organic sector than the conventional sector, but the induced economic effect was higher for organic. Given the organic price premium, the economic impact (direct, indirect and induced) was larger for organic apple production than conventional apple production.conventional and organic apple production, multiplier effects, output, and employment effects, IMPLAN

Grammatisches Wissen, Fremdsprachenunterricht und Lehrwerke – Zur Qualität von Grammatikübungen in zwei kroatischen DaF-Lehrwerken

The present paper looks into an important aspect of textbooks for teaching German as a for-eign language: grammar exercises. The author analyses two Croatian textbooks for teaching German at primary school level: Applaus! 7 and Flink mit Deutsch 4. The first part investigates the relationship between explicit and implicit knowledge and shows that explicit knowledge has an important role in the development of grammar competence. Consequently, grammar exercises used for explicit grammar teaching must be incorporated into textbooks. The author elaborates on what types of grammar exercises are needed and how these exercises should be created so that learners can benefit from them. In addition, the first part comments on the role of chunks in the development of grammar competence. Finally, the author examines the role of receptive and productive skills in connection with grammar teach-ing. The second part addresses the textbook analysis in general. It refers to the previous research conducted in the field as well as to the criteria that can be drawn upon when describing the quality of teaching materials. In the third part, the results of the analysis of the two Croatian textbooks are presented. Both quantitative and qualitative data are commented on. This part also includes some information regarding the Croatian teaching situation so that potential readers not acquainted with it can better understand comments and suggestions provided by the author. On one side, the paper points to the strengths and weaknesses of the teaching materials in question. On the other side, the author provides some general comments on what a good text-book should contain in order to help foreign language learners develop their grammar compe-tence

On a whale shark Rhincodon typus (Smith) caught off Manapad, Gulf of Mannar

A stray whale shark Rhincodon typus was caught accidentally from the Gulf of Mannar and was landed at Periyathalai on 27th November 1997. The sheirk measuring 5.93 m and weighing 2 tonnes (approximately) got entangled in the Paruvalai net of mesh size 12-15 cm operated at a depth of 30 m in the Manapad fishing ground during the very early hours (0015 hrs) of the day by a kattamaran. The shark was towed ashore with the help of the neighbouring crew members of a fibre-glass boat and three other Kattamarans and was landed at Periyathalai at 1130 hrs. Locally this shark is called as 'Uravi' or 'Ammuni uluvai'. For the whole day it was lying on the shore because of lack of demand