Hepatocystis Parasitemia in Wild Kenya Vervet Monkeys (Cercopithecus aethiops)

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/156239/1/jmp00010.pd

Utilizing industry 4.0 on the construction site : challenges and opportunities

In recent years a step change has been seen in the rate of adoption of Industry 4.0 technologies by manufacturers and industrial organisations alike. This paper discusses the current state of the art in the adoption of industry 4.0 technologies within the construction industry. Increasing complexity in onsite construction projects coupled with the need for higher productivity is leading to increased interest in the potential use of industry 4.0 technologies. This paper discusses the relevance of the following key industry 4.0 technologies to construction: data analytics and artificial intelligence; robotics and automation; buildings information management; sensors and wearables; digital twin and industrial connectivity. Industrial connectivity is a key aspect as it ensures that all Industry 4.0 technologies are interconnected allowing the full benefits to be realized. This paper also presents a research agenda for the adoption of Industry 4.0 technologies within the construction sector; a three-phase use of intelligent assets from the point of manufacture up to after build and a four staged R&D process for the implementation of smart wearables in a digital enhanced construction site

"These signs forerun the death or fall of kings": renegotiating masculinities and centrality in Shakespeare's second tetralogy through adaptation, direction and performance

‘Fall of Kings’, ‘Between the Armies’ and ‘The Breach’ were a series of adaptations that formed the practice-based elements of a project exploring and challenging contemporary representations of gendered power and repetitive narratives of hegemonic victory in post-1980’s performances of Shakespeare’s second tetralogy. ‘Fall of Kings’ is an adaptation of Richard II, staged at Burdall’s Yard, Bath in March 2018; ‘Between the Armies’ is adapted from Henry IV Part 1 and Henry IV Part 2 and performed at The Rondo Theatre, Bath in September 2018; and ‘The Breach’ is adapted from Henry V, performed at The Rondo Theatre, Bath in June 2019 before touring to The Cotswold Playhouse, Stroud and The Alma Tavern, Bristol in July 2019. The productions were developed by three professional companies, engaging public audiences through live performances in theatres across the South West. The adapting and directing practices employed to stage the productions are informed by a sociological analysis of the plays, drawing on a number of theoretical studies that consider performance, gender and power from sociological or sociologically attuned perspectives. Foremost of these is Raewyn Connell’s masculinities, which informed decisions on how the texts would be cut, edited and approached in performance. In conjunction with Catherine Silverstone’s consideration of how trauma may be sustained through performance, Connell’s framework is applied in the reflection and analysis of the project’s practical elements, contributing to knowledge of how gendered power is held and enacted through practice, and the implications this may have for performance and performers. With this progression towards a trauma-informed and actor-centred approach to direction, the project later incorporates James C. Scott’s observations of hidden speech and action from and within social margins, which outline ways power might be claimed through the rejection of hegemony. In bringing together these considerations in practice, guided by the overarching framework of Connell’s masculinities, the project seeks to explore how adaptation and direction might intervene to disrupt, relocate or alter dynamics of power in rehearsal and performance processes. Reflecting on the adaptation, direction and performance of ‘Fall of Kings’, ‘Between the Armies’ and ‘The Breach’, the study considers how these practices contributed to the disruption of narratives depicting gendered hegemony, complicity, subordination and marginality in the performance of the second tetralogy. Chapter 1 will introduce the approach to masculinities’ practical applications in ‘Fall of Kings’, exploring how the introduction of a Narrator in the textual adaptation, and the use of physical performance techniques informed by Connell’s concepts enabled a subversion of masculine-feminine dichotomies and gendered power. Chapter 2 will examine the ways the re-embodiment of selected characters in ‘Between the Armies’ affected a displacement of the play’s hegemonic masculinities and, in doing so, disrupted the representation of hegemonic victory in Henry IV Part 1 and 2. The chapter will discuss how Silverstone’s exploration of performance as a site in which trauma can be both represented and sustained informed the reflection on white and heteropatriarchal hegemonies in ‘Between the Armies’, onstage and in rehearsal. Continuing with this line of enquiry in relation to Scott’s concept of hidden transcripts of resistance, Chapter 3 considers how approaches to performing class and gender in ‘The Breach’ contributed to disrupting working-class and feminine marginality, guided by the use of directorial understandings of gender. Referring to the productions as they are documented in the appendices, the thesis draws conclusions on how adaptation and direction might disrupt the centrality of Shakespeare’s kings in the narratives and processes of working with the plays. In doing so, theatre and performance can intervene in the potentially violent functions of narrative, embodiment and performance context. Centrality may be refocused, remaining flexible and responsive to actor experiences of social power, feeling and identity

Renormalon Singularities of the QCD Vacuum Polarization Function to Leading Order in 1/Nf1/N_{f}

We explicitly determine the residues and orders of all the ultra-violet (UV) and infra-red (IR) renormalon poles in the Borel plane for the QCD vacuum polarization function (Adler D-function), to leading order in an expansion in the number of quark flavours, $N_{f}$. The singularity structure is precisely as anticipated on general grounds. In particular, the leading IR renormalon is absent, in agreement with operator product expansion ideas. There is a curious and unexplained symmetry between the third and higher UV and IR renormalon residues. We are able to sum up separately UV and IR contributions to obtain closed form results involving $\zeta$-functions. We argue that the leading UV renormalon should have a more complicated structure than conventionally assumed. The disappearance of IR renormalons in flavour-saturated SU($N$) QCD is shown to occur for $N=3,6$ or 9.Comment: 22 pages of LaTeX, revisions to this paper are mainly typographica

Large-order Behaviour of the QCD Adler D-function in Planar Approximation

We consider the structure of the leading ultra-violet (UV) renormalon singularity associated with the QCD vacuum polarization Adler D-function, in the approximation that only planar Feynman diagrams are retained. This ``planar approximation'' results in some simplifications, in particular three of the four potential contributions from four-fermion operators are shown to be absent. We are able to obtain a fully normalized result for the leading $n\to\infty$ behaviour of the portion of perturbative coefficients proportional to $N_f^{n-r} N^r$, for SU(N) QCD with $N_f$ quark flavours.Comment: 10 pages, uses LaTe

RS-invariant all-orders renormalon resummations for some QCD observables

We propose a renormalon-inspired resummation of QCD perturbation theory based on approximating the renormalization scheme (RS) invariant effective charge beta-function coefficients by the portion containing the highest power of $b$=$\frac{1}{6}(11N$--$2N_{f})$, for SU($N$) QCD with $N_{f}$ quark flavours. This can be accomplished using exact large-$N_{f}$ all-orders results. The resulting resummation is RS-invariant and the exact next-to-leading order (NLO) and next-to-NLO (NNLO) coefficients in any RS are included. This improves on a previously employed naive resummation of the leading-$b$ piece of the perturbative coefficients which is RS-dependent, making its comparison with fixed-order perturbative results ambiguous. The RS-invariant resummation is used to assess the reliability of fixed-order perturbation theory for the $e^{+}e^{-}$ $R$-ratio, the analogous $\tau$-lepton decay ratio $R_{\tau}$, and Deep Inelastic Scattering (DIS) sum rules, by comparing it with the exact NNLO results in the effective charge RS. For the $R$-ratio and $R_{\tau}$, where large-order perturbative behaviour is dominated by a leading ultra-violet renormalon singularity, the comparison indicates fixed-order perturbation theory to be very reliable. For DIS sum rules, which have a leading infra-red renormalon singularity, the performance is rather poor. In this way we estimate that at LEP/SLD energies ideal data on the $R$-ratio could determine $\alpha_{s}(M_{Z})$ to three-significant figures, and for the $R_{\tau}$ we estimate a theoretical uncertainty $\delta\alpha_{s}(m_{\tau})\simeq0.008$ corresponding to $\delta\alpha_{s}(M_{Z})\simeq0.001$. This encouragingly small uncertainty is much less than has recently been deduced from comparison with the ambiguous naive resummation.Comment: 25 pages, uses LaTeX, 12 Postscript figures, epsfig.sty 'elsart.sty' and 'elsart12.sty' are available via anonymous-ftp at ftp://ftp.tex.ac.uk/tex-archive/macros/latex/contrib/supported/elsevie

Brane World Cosmologies and Statistical Properties of Gravitational Lenses

Brane world cosmologies seem to provide an alternative explanation for the present accelerated stage of the Universe with no need to invoke either a cosmological constant or an exotic \emph{quintessence} component. In this paper we investigate statistical properties of gravitational lenses for some particular scenarios based on this large scale modification of gravity. We show that a large class of such models are compatible with the current lensing data for values of the matter density parameter $\Omega_{\rm{m}} \leq 0.94$ ($1\sigma$). If one fixes $\Omega_{\rm{m}}$ to be $\simeq 0.3$, as suggested by most of the dynamical estimates of the quantity of matter in the Universe, the predicted number of lensed quasars requires a slightly open universe with a crossover distance between the 4 and 5-dimensional gravities of the order of $1.76 H_o^{-1}$.Comment: 6 pages, 3 figures, revte

Magnetotunneling spectroscopy of mesoscopic correlations in two-dimensional electron systems

An approach to experimentally exploring electronic correlation functions in mesoscopic regimes is proposed. The idea is to monitor the mesoscopic fluctuations of a tunneling current flowing between the two layers of a semiconductor double-quantum-well structure. From the dependence of these fluctuations on external parameters, such as in-plane or perpendicular magnetic fields, external bias voltages, etc., the temporal and spatial dependence of various prominent correlation functions of mesoscopic physics can be determined. Due to the absence of spatially localized external probes, the method provides a way to explore the interplay of interaction and localization effects in two-dimensional systems within a relatively unperturbed environment. We describe the theoretical background of the approach and quantitatively discuss the behavior of the current fluctuations in diffusive and ergodic regimes. The influence of both various interaction mechanisms and localization effects on the current is discussed. Finally a proposal is made on how, at least in principle, the method may be used to experimentally determine the relevant critical exponents of localization-delocalization transitions.Comment: 15 pages, 3 figures include

A PXY-Mediated Transcriptional Network Integrates Signaling Mechanisms to Control Vascular Development in Arabidopsis

Vascular meristems generate the majority of biomass in higher plants. They constitute a bifacial stem cell population from which xylem and phloem are specified on opposing sides by positional signals. The PHLOEM INTERCALATED WITH XYLEM (PXY) receptor kinase promotes vascular cell division and organisation. However, how these functions are specified and integrated is unknown. Here, a putative PXY-mediated transcriptional regulatory network comprised of 690 transcription factor-promoter interactions was mapped. Among these interactions was a feed-forward loop containing transcription factors WUSCHEL HOMEOBOX RELATED 14 (WOX14) and TARGET OF MONOPTEROS 6 (TMO6), which each regulate the expression of a third transcription factor, LATERAL ORGAN BOUNDARIES DOMAIN 4 (LBD4). PXY signalling in turn regulates the WOX14, TMO6, LBD4 loop to control vascular proliferation. Genetic interaction between LBD4 and PXY suggests that LBD4 marks the phloem-procambium boundary, thus defining the shape of the vascular bundle. These data collectively support a novel mechanism that influences recruitment of cells into the phloem lineage, and defines the role of PXY signalling in this context to the arrangement of vascular tissue