Toward A Further Understanding Of The Extensibility Of Sign Languages

Sign language video recordings have limited extensibility when compared with live, face-to-face communication by signers. In an effort to improve the extensibility of video recordings this study explores the possibility of leveraging a common meaning negotiation technique, depictional signing, to increase understanding of recorded texts. In an effort to gauge the understanding of depictional signing compared to lexical signing a Recorded Text Test was devised using two texts, one with a high number of visual depictions, the other with a high number of lexical signs. While a comparison of the results of the two tests did not substantiate the hypothesis for reasons that appear to have introduced spurious results, the comparisons of the two styles of signing within each story did confirm the hypothesis

Carrying a Good Joke Too Far

Contract is predicated on agreement, or so the story goes. Of course, the reality of the modern bank-customer transaction is not so straightforward. In those transactions, the contract law is confronted with an ostensible dilemma: Should the law find its goal in the efficiency to be gained by binding customers to terms which they neither read nor understand? Or should the law instead focus on classical conceptions of bargain and agreement, and refuse to enforce contract terms that do not exhibit these characteristics? Article 4 of the Uniform Commercial Code, which regulates bank-customer transactions, attempts to strike a balance between fairness and efficiency, but the success of its task is undermined by one provision, section 4-103, which permits banks and customers to circumvent the effect of the Article by agreement. The majority of the form terms that invade bank-customer agreements are not the subject of agreement in any meaningful sense; they are unilateral impositions of the stronger contracting party: the bank. Provisions such as waivers of a customer\u27s right to a jury trial and terms granting the bank the authority to alter the terms of the account agreement abound, and nobody—including the courts asked to enforce these provisions—seriously contends that these terms are the result of agreement in the sense of a bargained-for exchange. Instead, as the economic literature shows, these terms result from banks\u27 exploitation of their naïve customers. In the typical bank-customer transaction, banks, like all businesses, exploit the naïveté of their less-sophisticated customers by imposing on those customers terms to which the customers have not manifested real agreement. This exploitation, which occurs even at market equilibrium, is achieved by the use of shrouded terms, or terms whose meaning and effect are hidden from the customer. But the impact of this shrouding is more harmful than a simple exploitation of naive customers: Sophisticated consumers are complicit in the bank\u27s efforts to exploit naive customers, Indeed, because that exploitation redounds to their benefit, sophisticated customers seek out banks that exploit naive customers. A pernicious cross-subsidy results. The extant justifications of unilaterally-imposed form terms such as those in bank-customer agreements miss the mark because they fail to account for that cross-subsidy. Commentators have argued that courts are capable of weeding out those shrouded terms that result in an aggregate inefficiency, or that naive customers suffer no real detriment because they are shielded by a protective umbrella erected by the more sophisticated customers. One commentator has argued that shrouded terms are merely a prelude to later bargaining and negotiation that occurs when a customer disadvantaged by a term calls to complain about its effects. These varied attempts to craft a trust-the-market solution to the impact of shrouded terms fail because the very market that created these terms cannot be trusted to alleviate their pernicious effects. If we cannot trust the market to police the effects of shrouded terms, then we must find some other mechanism to accomplish that task. Article 4 attempted to provide such a mechanism in the form of a laundry list of acceptable terms that would prevent banks from gaining too much power over their customers. But for those transactors that would find it advantageous to circumvent Article 4\u27s effects, section 4-103 provided an escape clause. Now, the escape clause has become the rule rather than the exception, and a reexamination is due. The conclusion of this paper is that advertisement about the nature and impact of the terms contained in account agreements, and thus education of bank customers, can undo the harmful effects of shrouded terms. With the shroud lifted, bank-customer agreements, like any other contract, can be evaluated by reference to classical notions of bargain and agreement

Mass Flow Control in a Magnesium Hall-effect Thruster

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/83626/1/AIAA-2010-6861-269.pd

Eigenstripping, Spectral Decay, and Edge-Expansion on Posets

Fast mixing of random walks on hypergraphs (simplicial complexes) has recently led to myriad breakthroughs throughout theoretical computer science. Many important applications, however, (e.g. to LTCs, 2-2 games) rely on a more general class of underlying structures called posets, and crucially take advantage of non-simplicial structure. These works make it clear that the global expansion properties of posets depend strongly on their underlying architecture (e.g. simplicial, cubical, linear algebraic), but the overall phenomenon remains poorly understood. In this work, we quantify the advantage of different poset architectures in both a spectral and combinatorial sense, highlighting how regularity controls the spectral decay and edge-expansion of corresponding random walks. We show that the spectra of walks on expanding posets (Dikstein, Dinur, Filmus, Harsha APPROX-RANDOM 2018) concentrate in strips around a small number of approximate eigenvalues controlled by the regularity of the underlying poset. This gives a simple condition to identify poset architectures (e.g. the Grassmann) that exhibit strong (even exponential) decay of eigenvalues, versus architectures like hypergraphs whose eigenvalues decay linearly - a crucial distinction in applications to hardness of approximation and agreement testing such as the recent proof of the 2-2 Games Conjecture (Khot, Minzer, Safra FOCS 2018). We show these results lead to a tight characterization of edge-expansion on expanding posets in the ??-regime (generalizing recent work of Bafna, Hopkins, Kaufman, and Lovett (SODA 2022)), and pay special attention to the case of the Grassmann where we show our results are tight for a natural set of sparsifications of the Grassmann graphs. We note for clarity that our results do not recover the characterization of expansion used in the proof of the 2-2 Games Conjecture which relies on ?_? rather than ??-structure

The molecular basis for recognition of bacterial ligands at equine TLR2, TLR1 and TLR6.

TLR2 recognises bacterial lipopeptides and lipoteichoic acid, and forms heterodimers with TLR1 or TLR6. TLR2 is relatively well characterised in mice and humans, with published crystal structures of human TLR2/1/Pam3CSK4 and murine TLR2/6/Pam2CSK4. Equine TLR4 is activated by a different panel of ligands to human and murine TLR4, but less is known about species differences at TLR2. We therefore cloned equine TLR2, TLR1 and TLR6, which showed over 80% sequence identity with these receptors from other mammals, and performed a structure-function analysis. TLR2/1 and TLR2/6 from both horses and humans dose-dependently responded to lipoteichoic acid from Staphylococcus aureus, with no significant species difference in EC50 at either receptor pair. The EC50 of Pam2CSK4 was the same for equine and human TLR2/6, indicating amino acid differences between the two species' TLRs do not significantly affect ligand recognition. Species differences were seen between the responses to Pam2CSK4 and Pam3CSK4 at TLR2/1. Human TLR2/1, as expected, responded to Pam3CSK4 with greater potency and efficacy than Pam2CSK4. At equine TLR2/1, however, Pam3CSK4 was less potent than Pam2CSK4, with both ligands having similar efficacies. Molecular modelling indicates that the majority of non-conserved ligand-interacting residues are at the periphery of the TLR2 binding pocket and in the ligand peptide-interacting regions, which may cause subtle effects on ligand positioning. These results suggest that there are potentially important species differences in recognition of lipopeptides by TLR2/1, which may affect how the horse deals with bacterial infections.RIGHTS : This article is licensed under the BioMed Central licence at http://www.biomedcentral.com/about/license which is similar to the 'Creative Commons Attribution Licence'. In brief you may : copy, distribute, and display the work; make derivative works; or make commercial use of the work - under the following conditions: the original author must be given credit; for any reuse or distribution, it must be made clear to others what the license terms of this work are

High-output forage systems for meeting beef markets – Phase 2

This project investigated the relative profitability of six forage options for backgrounding or finishing cattle in the Fitzroy River catchment of Queensland. Data was collected at 24 forage sites on commercial properties over 2011-2014. Whole-farm economic case studies were developed with five co-operators. The factors affecting profitability were further investigated through constructed forage scenarios. This work has provided a better understanding of the expected forage, animal and economic performance from key forage options under commercial management conditions. Under current market and cost conditions, perennial legume-grass pastures, particularly leucaena-grass, had a significant advantage over perennial grass pasture and annual forages in terms of profitability. However, legume-grass pastures were not as profitable as grain cropping when grain cropping was a feasible alternative. Annual forages were unable to add economic value to the beef enterprise due to their higher average growing costs when compared to perennial forages. Existing models could not accurately predict forage and animal production from annual forage crops. A prototype decision support tool was developed. A producer guide to forage use, and gross margin spreadsheets for forages grown in three sub-regions of the Fitzroy River catchment, have been developed and will support informed decision making with regard to forage use

Understanding “Understanding” in Public Understanding of Science

This study examines the conflation of terms such as “knowledge” and “understanding” in peer-reviewed literature, and tests the hypothesis that little current research clearly distinguishes between importantly distinct epistemic states. Two sets of data are presented from papers published in the journal Public Understanding of Science. In the first set, the digital text analysis tool, Voyant, is used to analyze all papers published in 2014 for the use of epistemic success terms. In the second set of data, all papers published in Public Understanding of Science from 2010–2015 are systematically analyzed to identify instances in which epistemic states are empirically measured. The results indicate that epistemic success terms are inconsistently defined, and that measurement of understanding, in particular, is rarely achieved in public understanding of science studies. We suggest that more diligent attention to measuring understanding, as opposed to mere knowledge, will increase efficacy of scientific outreach and communication efforts

Phenological characteristics of global coccolithophore blooms

Coccolithophores are recognized as having a significant influence on the global carbon cycle through the production and export of calcium carbonate (often referred to as particulate inorganic carbon or PIC). Using remotely sensed PIC and chlorophyll data, we investigate the seasonal dynamics of coccolithophores relative to a mixed phytoplankton community. Seasonal variability in PIC, here considered to indicate changes in coccolithophore biomass, is identified across much of the global ocean. Blooms, which typically start in February–March in the low-latitude (~30°) Northern Hemisphere and last for ~6–7 months, get progressively later (April–May) and shorter (3–4 months) moving poleward. A similar pattern is observed in the Southern Hemisphere, where blooms that generally begin around August–September in the lower latitudes and which last for ~8 months get later and shorter with increasing latitude. It has previously been considered that phytoplankton blooms consist of a sequential succession of blooms of individual phytoplankton types. Comparison of PIC and chlorophyll peak dates suggests instead that in many open ocean regions, blooms of coccolithophores and other phytoplankton can co-occur, conflicting with the traditional view of species succession that is thought to take place in temperate regions such as the North Atlantic

Same-Sex Couples, Families, and Marriage: Embracing and Resisting Heteronormativity

Abstract This article focuses on lesbian and gay couples and families and the politics of same-sex marriage. Drawing from the literature on same-sex couples, same-sex marriage, and queer theory's concept of heteronormativity, we argue that gay and lesbian couples and families both affirm and challenge heterosexual and gendered family forms. First, we review literature that discusses how same-sex relationships and families are similar to and different from conventional heterosexual relationships and families. Second, we discuss the socio-legal and cultural inequalities faced by LGBT families. Third, we discuss the politics of same-sex marriage, examining the debate among social conservatives, pro-marriage activists, and queer critics over the desirability of same-sex marriage. We conclude that the growing visibility of LGBT couples and families has made their exclusion from the institution of marriage more conspicuous and that recognition of LGBT relationships and families seems likely to increase

Modic type I changes of the lumbar spine in golfers

Low back pain (LBP) is the most prevalent musculoskeletal complaint among professional and amateur golfers; however, associated radiological changes in golf-related LBP have not been examined in the literature. We suspect that Modic Type 1 changes in the lumbar spine are linked to golf-related LBP. In this retrospective case series, four middle-aged golfers (one professional and three high-level amateurs) presented to our clinic with LBP. Inflammation of the right side of endplates in the lumbar spine was suspected based on Modic Type 1 changes detected by magnetic resonance imaging (MRI) in each patient. All four cases were diagnosed with right-sided endplate inflammation and administered intradiscal steroid injections with a non-steroidal anti-inflammatory drug (NSAID). Treatment swiftly alleviated LBP and diminished Modic Type 1 changes on follow-up MRI 3–6 months later in all four patients. We suggest that Modic Type 1 changes play a significant role in the diagnosis and treatment of golf-related LBP