cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Structural and functional characterization of the extended-diKH domain from the antiviral endoribonuclease KHNYN.
Creators: name: Youle, Rebecca L
name: Lista, María José
name: Bouton, Clement
name: Kunzelmann, Simone
name: Wilson, Harry
name: Cottee, Matthew A
name: Purkiss, Andrew G
name: Morris, Elizabeth R
name: Neil, Stuart JD
name: Taylor, Ian A
name: Swanson, Chad M
Publisher: name: The Francis Crick Institute
Year: 2025
Subjects: classificationCode: Infectious Disease
subject: Infectious Disease
classificationCode: Immunology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: Structural Biology & Biophysics
subject: Structural Biology & Biophysics

description: Zinc finger antiviral protein (ZAP) binds CpG dinucleotides in viral RNA and targets them for decay. ZAP interacts with several cofactors to form the ZAP antiviral system, including KHNYN, a multidomain endoribonuclease required for ZAP-mediated RNA decay. However, it is unclear how the individual domains in KHNYN contribute to its activity. Here, we demonstrate that the KHNYN amino terminal extended-diKH (ex-diKH) domain is required for antiviral activity and present its crystal structure. The structure belongs to a rare group of KH-containing domains, characterized by a non-canonical arrangement between two type-1 KH modules, with an additional helical bundle. N4BP1 is a KHNYN paralog with an ex-diKH domain that functionally complements the KHNYN ex-diKH domain. Interestingly, the ex-diKH domain structure is present in N4BP1-like proteins in lancelets, which are basal chordates, indicating that it is evolutionarily ancient. While many KH domains demonstrate RNA binding activity, biolayer interferometry and electrophoretic mobility shift assays indicate that the KHNYN ex-diKH domain does not bind RNA. Furthermore, residues required for canonical KH domains to bind RNA are not required for KHNYN antiviral activity. By contrast, an inter-KH domain cleft in KHNYN is a potential protein-protein interaction site and mutations that eliminate arginine salt bridges at the edge of this cleft decrease KHNYN antiviral activity. This suggests that this domain could be a binding site for an unknown KHNYN cofactor.
A robust strategy for cleaning motion artifacts in resting state fMRI
Creators: name: Yu, Tianze
Publisher: name: University of British Columbia
Year: 2020

description: There is an increasing recognition that different preprocessing approaches for functional magnetic resonance imaging (fMRI) data may have a profound impact on downstream analyses. A critical element of standard preprocessing of fMRI data is motion correction, as head motion during fMRI scanning can induce changes in blood oxygenation level dependent (BOLD) signals that may confound estimations of brain activity, particularly connectivity estimates between brain regions. In this thesis, we propose an approach which explicitly decouples the changes due to brain activation and changes due to motion. Independent Vector Analysis (IVA) is used to determine the optimal combination of basis volumes to match reference volumes. Such an approach, which we call Motion correction with IVA (McIVA), is amenable to wide-scale parallelization. The mutual information between the first volume and all subsequent volumes declined more slowly after preprocessing with McIVA compared to the raw data and other motion correction schemes. Remarkably, since the final motion-correction volume in McIVA is based on a combination of images, we show that McIVA's error can be actually less than interpolation error. What is more, McIVA resulted in the lowest connectivity across a range of spatial distances between regions of interest (ROI) pairs. When a volume is severely corrupted, the IVA fails to converge, providing a principled way to determine if a given time point is too corrupted for recovery. Finally, we assessed the effects of McIVA on two popular denoising methods, aCompCor and ICA-AROMA on resting-state fMRI derived. McIVA resulted in reducing inflated connectivity estimates, while still retaining an adequate degree of freedom. Though the proposed method is based on resting-state fMRI data, it could be applied to task-related fMRI data as well. We conclude that the proposed approach is superior for removing motion-related artifacts and reducing biases in functional connectivity estimates induced by head movement.
Arrear Quanto CMS Valuation
Creators: name: Lee, David
Publisher: name: Zenodo
Year: 2022
Subjects: Arrear Quanto CMS Valuation

description: An arrear quanto constant-maturity-swap (CMS) is a swap that pays coupons in a different currency from the notional and in arrears. The underlying swap rate is computed from a forward starting CMS.
description: https://ia902902.us.archive.org/10/items/sellerSwap/sellerSwap.pdf
Additional file 2 of Effect of a probiotic on blood pressure in grade 1 hypertension (HYPRO): protocol of a randomized controlled study
Creators: name: Mähler, Anja
name: Wilck, Nicola
name: Rauch, Geraldine
name: Dechend, Ralf
name: Müller, Dominik N.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 2. : Written informed consent form.
$f(R)$ Gravity and Crossing the Phantom Divide Barrier
Creators: name: Bisabr, Yousef
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The $f(R)$ gravity models formulated in Einstein conformal frame are equivalent to Einstein gravity together with a minimally coupled scalar field. We shall explore phantom behavior of $f(R)$ models in this frame and compare the results with those of the usual notion of phantom scalar field.
description: 13 Pages, 9 figures. To appear in Physics Letters B
Arrear Quanto CMS Valuation
Creators: name: Lee, David
Publisher: name: Zenodo
Year: 2022
Subjects: Arrear Quanto CMS Valuation

description: An arrear quanto constant-maturity-swap (CMS) is a swap that pays coupons in a different currency from the notional and in arrears. The underlying swap rate is computed from a forward starting CMS.
description: https://osf.io/u95g2/wiki/home/
Additional file 1 of Heregulin (HRG) assessment for clinical trial eligibility testing in a molecular registry (PRAEGNANT) in Germany
Creators: name: Huebner, Hanna
name: Kurbacher, Christian M.
name: Kuesters, Geoffrey
name: Hartkopf, Andreas D.
name: Lux, Michael P.
name: Huober, Jens
name: Volz, Bernhard
name: Florin-Andrei Taran
name: Overkamp, Friedrich
name: Tesch, Hans
name: Häberle, Lothar
name: Lüftner, Diana
name: Wallwiener, Markus
name: Müller, Volkmar
name: Beckmann, Matthias W.
name: Belleville, Erik
name: Ruebner, Matthias
name: Untch, Michael
name: Fasching, Peter A.
name: Janni, Wolfgang
name: Fehm, Tanja N.
name: Hans-Christian Kolberg
name: Wallwiener, Diethelm
name: Brucker, Sara Y.
name: Schneeweiss, Andreas
name: Ettl, Johannes
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1: Table S1. SHERBOC Study Eligibility Criteria. Table S2. Data categories captured in the PRAEGNANT study.
Marginally compact hyperbranched polymer trees
Creators: name: Dolgushev, M.
name: Wittmer, J. P.
name: Johner, A.
name: Benzerara, O.
name: Meyer, H.
name: Baschnagel, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Assuming Gaussian chain statistics along the chain contour, we generate by means of a proper fractal generator hyperbranched polymer trees which are marginally compact. Static and dynamical properties, such as the radial intrachain pair density distribution or the shear-stress relaxation modulus, are investigated theoretically and by means of computer simulations. We emphasize that albeit the self-contact density diverges logarithmically with the total mass $N$, this effect becomes rapidly irrelevant with increasing spacer length $S$. In addition to this it is seen that the standard Rouse analysis must necessarily become inappropriate for compact objects for which the relaxation time $τ_p$ of mode $p$ must scale as $τ_p \sim (N/p)^{5/3}$ rather than the usual square power law for linear chains.
description: 14 pages, 11 figures
Additional file 2 of Heregulin (HRG) assessment for clinical trial eligibility testing in a molecular registry (PRAEGNANT) in Germany
Creators: name: Huebner, Hanna
name: Kurbacher, Christian M.
name: Kuesters, Geoffrey
name: Hartkopf, Andreas D.
name: Lux, Michael P.
name: Huober, Jens
name: Volz, Bernhard
name: Florin-Andrei Taran
name: Overkamp, Friedrich
name: Tesch, Hans
name: Häberle, Lothar
name: Lüftner, Diana
name: Wallwiener, Markus
name: Müller, Volkmar
name: Beckmann, Matthias W.
name: Belleville, Erik
name: Ruebner, Matthias
name: Untch, Michael
name: Fasching, Peter A.
name: Janni, Wolfgang
name: Fehm, Tanja N.
name: Hans-Christian Kolberg
name: Wallwiener, Diethelm
name: Brucker, Sara Y.
name: Schneeweiss, Andreas
name: Ettl, Johannes
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 2: Figure S1. Kaplan–Meier curves for progression-free survival (PFS) starting at the time of possible SHERBOC inclusion, relative to SHERBOC eligibility status. Figure S2. Kaplan–Meier curves for overall survival (OS) starting at the time of possible SHERBOC inclusion, relative to SHERBOC eligibility status.
Numerical determination of shear stress relaxation modulus of polymer glasses
Creators: name: Kriuchevskyi, I.
name: Wittmer, J. P.
name: Benzerara, O.
name: Meyer, H.
name: Baschnagel, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Focusing on simulated polymer glasses well below the glass transition, we confirm the validity and the efficiency of the recently proposed simple-average expression $G(t) = μ_A - h(t)$ for the computational determination of the shear stress relaxation modulus $G(t)$. Here, $μ_A = G(0)$ characterizes the affine shear transformation of the system at $t=0$ and $h(t)$ the mean-square displacement of the instantaneous shear stress as a function of time $t$. This relation is seen to be particulary useful for systems with quenched or sluggish transient shear stresses which necessarily arise below the glass transition. The commonly accepted relation $G(t)=c(t)$ using the shear stress auto-correlation function $c(t)$ becomes incorrect in this limit.
description: 5 pages, 2 figures. arXiv admin note: text overlap with arXiv:1711.00725
Exploring trajectories of drug use, violence, and suicidality among marginalized women : avenues of intervention and the therapeutic potential of psychedelics
Creators: name: Argento, Elena Maria
Publisher: name: University of British Columbia
Year: 2019

description: Background: Women who are marginalized due to social and/or economic disadvantage, including street-involved women, sex workers, and women who use drugs, experience numerous health and social inequities that disproportionately elevate risk of violence and suicidality. However, research and intervention programs to prevent violence and address systemic drivers of suicidality have been largely absent for this population and the socio-structural determinants remain poorly understood and under investigated. This dissertation therefore sought to explore trajectories of drug use, violence and suicidality among marginalized sex workers and aimed to identify avenues of intervention with a special focus on the therapeutic utility of psychedelics. Methods: This dissertation drew on data collected from AESHA (An Evaluation of Sex Workers’ Health Access), a community-based open prospective cohort of women sex workers across Metro Vancouver, Canada. Bivariate and multivariable logistic regression analyses using generalized estimating equations were employed to examine associations between various intersecting socio-structural factors and suicidality. Cox regression analyses were used to examine the impact of individual and socio-structural factors on incidence of crystal methamphetamine injection and suicidality, and assessed the independent effect of naturalistic psychedelic use on suicidality. Results: This dissertation identified that sex workers experience elevated risk and rates of suicidality influenced by dynamic, interrelated socio-structural factors. Experiences of interpersonal violence, homelessness, trauma/mental illness and physical/sexual childhood abuse were among the strongest determinants shaping drug use trajectories and risk of suicidality. Importantly, the study findings demonstrated that increased social cohesion had an independent protective effect on suicidality, as did psychedelic use, which was associated with a 60% reduced hazard of suicidality. Conclusion: Socio-structural factors play a critical role in potentiating and mitigating risk of suicide. Strengthening social cohesion among sex workers may be an important protective strategy, and this dissertation provides some of the first empirical evidence of the potential benefits of psychedelic use for preventing suicidality. The collective findings of this dissertation offer critical insights into how integrated, trauma-informed, community-led structural interventions may mitigate risk of suicide, and underscore the need to advance research on the therapeutic utility of psychedelics alongside broader interventions that facilitate social cohesion and connectedness.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¿ÑÐ¾ÐµÐºÑÐ° ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½Ð¾Ð¹ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð±Ð¸Ð·Ð½ÐµÑ-Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ ÐÐÐ Â«ÐÐ­Ð Ð¥Ð¾Ð»Ð´Ð¸Ð½Ð³Â»
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of the complex business processes automatization of the enterprise âIEK Holdingâ LLC
Creators: name: ÐÐ¸ÑÐ°Ð»ÐºÐ¸Ð½, ÐÐµÐ½Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÐÐ²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ñ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²Ð°
ÐÐ½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÐµ ÑÐ¸ÑÑÐµÐ¼Ñ
Ð­Ð»ÐµÐºÑÑÐ¾ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ°Ñ Ð¿ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½Ð¾ÑÑÑ, Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ
Ð±Ð¸Ð·Ð½ÐµÑ-Ð¿ÑÐ¾ÑÐµÑÑÑ
ERP
SWOT-Ð°Ð½Ð°Ð»Ð¸Ð·
PEST-Ð°Ð½Ð°Ð»Ð¸Ð·
big data
CRM
ÐºÐ¾ÑÐ¿Ð¾ÑÐ°ÑÐ¸Ð²Ð½Ð°Ñ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
Ð¿ÑÐ¾ÑÐµÑÑÐ½ÑÐ¹ Ð¿Ð¾Ð´Ñ Ð¾Ð´

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²ÐµÐ½Ð½Ð¾Ðµ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ðµ ÑÐ»ÐµÐºÑÑÐ¾ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¾ÑÑÐ°ÑÐ»Ð¸ ÐÐÐ Â«ÐÐ­Ð Ð¥Ð¾Ð»Ð´Ð¸Ð½Ð³Â». Ð¦ÐµÐ»Ñ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð¼Ð°Ð³Ð¸ÑÑÑÐ° â Ð°Ð½Ð°Ð»Ð¸Ð· Ð´ÐµÑÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ, ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð°ÑÑÐ¸ÑÐµÐºÑÑÑÑ ÐºÐ¾ÑÐ¿Ð¾ÑÐ°ÑÐ¸Ð²Ð½Ð¾Ð¹ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ñ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸ÐµÐ¼ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÑÐ°Ð±Ð¾ÑÐ¸Ñ Ð¼ÐµÑÑ. ÐÐ°ÑÐºÐ°Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð¿ÑÐ¾ÑÐµÑÑÐ° Â«Ð¤Ð¸Ð½Ð°Ð½ÑÑÂ» Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð±Ð¸Ð·Ð½ÐµÑ-Ð¿ÑÐ¾ÑÐµÑÑÑ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸. ÐÐ»Ñ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼Ð¾Ð³Ð¾ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ Ð±ÑÐ» Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¾ÑÑÐ°ÑÐ»Ð¸ Ð¸ ÐºÐ¾Ð½ÐºÑÑÐµÐ½ÑÐ½Ð¾Ð³Ð¾ Ð¾ÐºÑÑÐ¶ÐµÐ½Ð¸Ñ, Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¸ Ð¼Ð°ÑÐºÐµÑÐ¸Ð½Ð³Ð¾Ð²ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð·. Ð¢Ð°ÐºÐ¶Ðµ Ð² ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½ Ð²ÑÐ±Ð¾Ñ ÐºÐ¾Ð¼Ð±Ð¸Ð½Ð°ÑÐ¸Ð¸ Ð¸Ð· Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½ÑÑ Ð¿ÑÐ¾Ð´ÑÐºÑÐ¾Ð² Ð´Ð»Ñ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¿ÑÐ¾ÐµÐºÑÐ° ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½Ð¾Ð¹ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÐ°ÑÑÐµÑÐ° Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹ ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¿Ð¾ÐºÐ°Ð·Ð°Ð»Ð¸, ÑÑÐ¾ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÐ¹ Ð¿ÑÐ¾ÐµÐºÑ ÑÐµÐ±Ñ Ð¾ÐºÑÐ¿Ð°ÐµÑ.
description: The object of the research is the enterprise of the electrotechnical industry âIEK Holdingâ LLC. The purpose of the graduation qualification work of master s an analysis of the enterpriseâs activities, the development of a corporate information system architecture with the creation of automated workplaces. Cascading the automation of the Finance process into the company's main business processes. For the researched company was carried out analysis of the industry and competitive environment, economic and marketing analysis. The work also justifies the choice of a combination of software products for the implementation of a comprehensive automation project. The results of the calculation of economic efficiency indicators showed that the proposed project pays for itself.
ASSESSMENT OF CREDIT RISK MANAGEMENT SYSTEM IN  ETHIOPIAN COMMERCIAL BANKING INDUSTRY
Creators: name: BAYUSH MINTESINOT
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Banking  is  topic,  practice,  business  or  profession almost  as  old  as  the  very
existence  of  man,  but  literarily  it  can  be  rooted  deep  back  the days  of  the
Renaissance  (by  the  Florentine Bankers). It has sprouted from the very primitive
Stone-age banking, through the  Victorian-age  to  the  technology-driven  Google-age
banking,  encompassing automatic  teller machines  (ATMs),  credit  and  debit cards,
correspondent  and  internet banking. Credit  management  has  always  been  a  vicinity
of  concern  not  only  to  bankers  but  to  all  in  the business world because the risks
of a trading partner not fulfilling his obligations in full on due date can seriously
jeopardize the affairs of the other partner. The main objective of this study is to have a
clearer picture of how the commercial banks assess its credit before approving or
rejecting loan request from clients, which could have significant impact on the bank’s
financial performance. For the purpose of the study, both primary and secondary data
are used. Descriptive statistical tools are used in analyzing the data collected. The loan
growth and client reputation was not as required due to the weaknesses in credit
creation and procedure. the  default  problem in  the  bank was mainly due  to  loan
diversion, market  problem, and environmental problem which all leads to credit risk;
factors controllable by the banks was the major contributor to non -performing loans;
and the enforcement measures  used by the banks for default loans was found
ineffective, among others. This  study  therefore  hopes  to  provide  an  insight  into
this  topic  and  help  promote further research into same. In general, this research has
a practical value, as it will disseminate the findings to the survey participants for their
consideration. Subsequently, the bank can incorporate the recommendations from this
study into its credit assessment processes in order to sustain its business performance.
Educational Practices for a New Nigeria: An Exploratory Study
Creators: name: Aydin, Hasan
name: Lafer, Stephen
Publisher: name: Alberta Journal of Educational Research
Year: 2016

description: This article reports on a qualitative study conducted at the Nigerian Turkish International Colleges (NTICs) in Abuja, Nigeria. Twenty-two participants comprised of three administrators, seven teachers, four parents, and eight students participated in the study. The data collected through observations, informal, formal and semi-structured in-depth individual interviews, focus groups, document analysis (of teachers’ syllabi, coursework materials, Nigerian nation-wide exam reports, and copies of district and state lesson design guidelines), and field notes were used for content analysis. Themes of the study were constructed to explore the schools’ role in promoting openness, mutual understanding, and habits of discourse vital to democracy in a society that is deeply divided along religious, ethnic, and geographical lines. This article explains the value of NTICs by focusing on the role of curriculum in promoting tolerance, unity, economic prosperity, and stability. This article also considers how these NTICs attempt to encourage the establishment of a civil society based upon democratic principles of governance while focusing on multicultural values. Cet article présente les résultats d’une étude entreprise aux Nigerian Turkish International Colleges (NTICs) à Abuja, au Nigeria. L’étude a impliqué 22 participants, dont trois administrateurs, sept enseignants, quatre parents et huit étudiants. Les données ont été recueillies lors de séances d’observation, d’entrevues individuelles approfondies (informelles, formelles et semi-structurées), de groupes de discussion, d’analyse documentaire (plans de cours des professeurs, matériel de cours, rapports portant sur des examens à l’échelle du Nigeria, lignes directrices de la part des districts et de l’état pour la conception des cours) et par des notes prises sur le terrain. Les thèmes élaborés pour l’étude visaient l’exploration du rôle de l’école dans la promotion de l’ouverture, la compréhension mutuelle et les habitudes de discours essentielles à la démocratie dans une société qui est profondément divisée selon des clivages religieux, ethniques et géographiques. Cet article explique la valeur des NTICs en se penchant sur le rôle des programmes d’études dans la promotion de la tolérance, l’unité, la prospérité économique et la stabilité. De plus, il considère les efforts de ces NTICs pour encourager l’établissement d’une société civile reposant sur des principes démocratiques de gouvernance tout en tenant compte de valeurs multiculturelles.
description: Alberta Journal of Educational Research, Vol. 61 No. 2 (2015): Summer
Additional file 1 of Effect of a probiotic on blood pressure in grade 1 hypertension (HYPRO): protocol of a randomized controlled study
Creators: name: Mähler, Anja
name: Wilck, Nicola
name: Rauch, Geraldine
name: Dechend, Ralf
name: Müller, Dominik N.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. : Approval of the institutional review board of Charité - Universitätsmedizin Berlin.
The Edge Effect
Creators: name: McNamara, Sean
name: Newtoff, Kiersten
name: Livernoche, Kelly
name: Bell, Allison
name: Leips, Jeff
name: Wesley, Gina
name: Gretes, William
Publisher: name: QUBES Educational Resources
Year: 2023

description: This module has students venturing outdoors to take a 50m transect and collect abundance data on plants utilizing quadrats in both edge and interior environment. Mathematically the goals of this module are to emphasize how sample size can influence data analysis and variance within the data set. Students perform calculations for species diversity using the Shannon-Wiener Diversity Index. They will then take averages and the standard error of their data set, and use this information to create a graph. They will repeat this process for the entire class data set. Students will also run the student’s t-test to test for significance between the two environments.
AnyCall: Fast and Flexible System-Call Aggregation
Creators: name: Gerhorst, Luis
name: Herzog, Benedict
name: Reif, Stefan
name: Schröder-Preikschat, Wolfgang
name: Hönig, Timo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Operating Systems (cs.OS)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Operating systems rely on system calls to allow the controlled communication of isolated processes with the kernel and other processes. Every system call includes a processor mode switch from the unprivileged user mode to the privileged kernel mode. Although processor mode switches are the essential isolation mechanism to guarantee the system's integrity, they induce direct and indirect performance costs as they invalidate parts of the processor state. In recent years, high-performance networks and storage hardware has made the user/kernel transition overhead the bottleneck for IO-heavy applications. To make matters worse, security vulnerabilities in modern processors (e.g., Meltdown) have prompted kernel mitigations that further increase the transition overhead. To decouple system calls from user/kernel transitions we propose AnyCall, which uses an in-kernel compiler to execute safety-checked user bytecode in kernel mode. This allows for very fast system calls interleaved with error checking and processing logic using only a single user/kernel transition. We have implemented AnyCall based on the Linux kernel's eBPF subsystem. Our evaluation demonstrates that system call bursts are up to 55 times faster using AnyCall and that real-world applications can be sped up by 24% even if only a minimal part of their code is run by AnyCall.
Extensible Knowledge Representation: the Case of Description Reasoners
Creators: name: Borgida, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This paper offers an approach to extensible knowledge representation and reasoning for a family of formalisms known as Description Logics. The approach is based on the notion of adding new concept constructors, and includes a heuristic methodology for specifying the desired extensions, as well as a modularized software architecture that supports implementing extensions. The architecture detailed here falls in the normalize-compared paradigm, and supports both intentional reasoning (subsumption) involving concepts, and extensional reasoning involving individuals after incremental updates to the knowledge base. The resulting approach can be used to extend the reasoner with specialized notions that are motivated by specific problems or application areas, such as reasoning about dates, plans, etc. In addition, it provides an opportunity to implement constructors that are not currently yet sufficiently well understood theoretically, but are needed in practice. Also, for constructors that are provably hard to reason with (e.g., ones whose presence would lead to undecidability), it allows the implementation of incomplete reasoners where the incompleteness is tailored to be acceptable for the application at hand.
Convexity and structure of piecewise polynomial functions on polyhedral domains
Creators: name: Singh, Shambhavi
Publisher: name: University of British Columbia
Year: 2019

description: First, we consider how to efficiently determine whether a piecewise-defined function in 2D is convex. For a piecewise linear quadratic (PLQ) function, convexity can be characterized with a linear number of constraints with respect to the number of edges of the partition defining the domain. The number of constraints in 2D is in fact linear with respect to the number of vertices in the domain. A similar characterization is given for piecewise cubic functions in 2D. We then consider the set of convex PLQ functions, which can be split into sub-classes based on how neighbouring pieces interact with each other. The sub-class of difference-definite functions on boxes is shown to be characterized by a quasi-separable structure. This in turn gives a parametrization that is linear with respect to the number of grid points in the domain, while the general case requires a quadratic number of parameters. The characterization of convexity is finally used in optimization algorithms under convex constraints. We make the connection with previous work, and show our results are much more general. We illustrate the results by computing the closest convex function.
Noncommutative Geometry Spectral Action as a framework for unification: Introduction and phenomenological/cosmological consequences
Creators: name: Sakellariadou, Mairi
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I will summarize Noncommutative Geometry Spectral Action, an elegant geometrical model valid at unification scale, which offers a purely gravitational explanation of the Standard Model, the most successful phenomenological model of particle physics. Noncommutative geometry states that close to the Planck energy scale, space-time has a fine structure and proposes that it is given as the product of a four-dimensional continuum compact Riemaniann manifold by a tiny discrete finite noncommutative space. The spectral action principle, a universal action functional on spectral triples which depends only on the spectrum of the Dirac operator, applied to this almost commutative product geometry, leads to the full Standard Model, including neutrino mixing which has Majorana mass terms and a see-saw mechanism, minimally coupled to gravity. It also makes various predictions at unification scale. I will review some of the phenomenological and cosmological consequences of this beautiful and purely geometrical approach to unification.
description: 11 pages; Invited contribution for Mario Castagnino's Festschrift, to be published in IJMPD
EFFECT OF ORGANAZATIONAL CULTURE ON EMPLOYEE  PERFORMANCE: THE CASE OF DEVELOPMENT BANK OF  ETHIOPIA WOLITA SODO DISTRICT
Creators: name: AMELMAL HAIMANOT
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This research paper discussed the effect of organizational culture on employees’ performance in
case of Development Bank of Ethiopia.  The objective of this study was to  investigate  the  effect
of  four  organizational  culture traits  namely,  involvement,  consistency,  adaptability  and
mission  on  employee performance in  Development Bank of Ethiopia (DBE). The thesis adopts
explanatory  research with quantitative research approach.  Data for the study was collected
from 84  employees by census, using survey questionnaire.  Both inferential and descriptive
analysis are used  to see  the relationship and  effect of  independent variables on dependent
variable.  The results show that  the four traits measuring organizational culture were all
positively related with employee’s performance. Moreover, involvement is the most contributing
organizational culture traits in the prediction of employee performance with beta value .654.
The other three organizational  culture  traits,  in  their  descending  order  of standardized
coefficients  are  mission,  consistency  and  adaptability.  Furthermore, statistically  significant
result for  the  three  organizational  culture    traits:  involvement,  mission, and consistency,
indicate  that  there  is  significant  relationship  with  employees’ performance.   However,
adaptability  doesn’t have significant effect on employee  performance as per  the result of
regression analysis.
Quantum Phase Transition, O(3) Universality Class and Phase Diagram of Spin-1/2 Heisenberg Antiferromagnet on Distorted Honeycomb Lattice: A Tensor Renormalization Group Study
Creators: name: Li, Wei
name: Gong, Shou-Shu
name: Zhao, Yang
name: Su, Gang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spin-1/2 Heisenberg antiferromagnet on the distorted honeycomb (DHC) lattice is studied by means of the tensor renormalization group method. It is unveiled that the system has a quantum phase transition of second-order between the gapped quantum dimer phase and a collinear Neel phase at the critical point of coupling ratio α_{c} = 0.54, where the quantum critical exponents ν= 0.69(2) and γ= 1.363(8) are obtained. The quantum criticality is found to fall into the O(3) universality class. A ground-state phase diagram in the field-coupling ratio plane is proposed, where the phases such as the dimer, semi-classical Neel, and polarized phases are identified. A link between the present spin system to the boson Hubbard model on the DHC lattice is also discussed.
description: 6 pages, 5 figures, published in Phys. Rev. B
ASSESSMENT OF CHALLENGES OF ELECTRONIC BANKING   (E-BANKING) IN ETHIOPIAN BANK SECTOR–CASE STUDY  OF SOUTH ETHIOPIA DISTRICT
Creators: name: Tesfalem Mengiste
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The  advent  of   current   technology  such   as    internet  use  is  developing  fast  and  is
constantly bringing new magnitudes to our daily life. The banking industry is one of the
sectors that has benefited from the evolving technology by the introduction of Electronic
banking (E-banking) systems which provide easy access to banking services.   This study
was  carried  out  to  assess  the  prospect  and  challenges  of  E-  banking  in  Ethiopian
sector,  in  southern Ethiopia district.  The  study  also  identified  the  main  E-banking
products  of  the  bank  namely:  Automated  Teller Machine  (ATM),  mobile  and  Internet
(online)  banking,  electronic  funds  transfer,  direct  bill  payments  and  credit  card.
Most respondents  (44.40%) prefer ATM relative to other E-banking products, however,
most  customers  also  uses  combination of  the  products.  The  study identified  benefits
customers derive  from E banking as saving of  time, quickness  in banking transactions,
easy access to account details and reduction of long queues in banking halls. According
to  the  study,  customer satisfaction  and  competition  from  other  banks  were  the  main
influencing  factors  for E-banking adoption. Notwithstanding E-banking advantages, it is
confronted  with  challenges  such  as  frequent  network  failure,  high  bank  charges,
limited  amount  of  cash withdrawal  and wrong debit was  identified  as  the  paramount
challenges. Nevertheless,     the researcher     recommended     that     for     effective    E-
banking   system, customer  education and marketing  of E-banking  products  should  be
the key strategy to use and to attract more customers, increasing security for E-banking
products, reduction of charges of E-banking products and increasing more ATM outlets
in the country.
Non-Weyl resonance asymptotics for quantum graphs in a magnetic field
Creators: name: Exner, Pavel
name: Lipovsky, Jiri
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study asymptotical behaviour of resonances for a quantum graph consisting of a finite internal part and external leads placed into a magnetic field, in particular, the question whether their number follows the Weyl law. We prove that the presence of a magnetic field cannot change a non-Weyl asymptotics into a Weyl one and vice versa. On the other hand, we present examples demonstrating that for some non-Weyl graphs the ``effective size'' of the graph, and therefore the resonance asymptotics, can be affected by the magnetic field.
Thermal effects of the excitation laser power on carbonaceous meteorite Northwest Africa 6603 by Raman spectroscopy: an undergraduate research project
Creators: name: Zakariya, Mohamed
name: Bock, Conan
name: Kayastha, Rohil
name: Dall’Asén, Analía G.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Raman spectroscopy has been used extensively on meteoritic samples since it is a nondestructive tool that provides information about their structure and mineralogical composition, which can give important clues about planet formation. However, the power of the excitation laser used in this technique can alter the properties of the samples due to thermal effects. In this undergraduate research work, the laser-induced thermal effects produced on the carbonaceous chondritic meteorite Northwest Africa 6603 were studied in detail by analyzing the low- and high-resolution Raman spectra parameters of the minerals found in the inclusions and matrix of this sample as a function of the excitation power. Olivine (forsterite), graphitic carbon, pyroxene (enstatite), hematite and gehlenite were the minerals identified in the studied regions. The Raman parameters of these minerals were affected by the laser power to a greater or lesser extent, indicating an increase in structural disorder. In general, the alterations observed were permanent (reverse changes were not observed). These thermal effects were correlated with the topography of the irradiated regions by analyzing their changes using optical microscopy. The micrographs of a few regions showed changes on their topography after irradiating the regions with the maximum applied power (e.g., more depressed areas). These findings exhibited strong evidence of the thermal effects induced by the laser power on the materials found in this fragment, which must be considered to avoid alterations of the physical and chemical properties of the meteoritic samples. In addition, this work presents the first study done on the mineralogical composition of Northwest Africa 6603 using Raman spectroscopy. Furthermore, from an educational standpoint, this project exposed the involved undergraduate physics students to numerous research steps (e.g., experiment preparation, data acquisition/analysis, and manuscript preparation) which provided them with a broad spectrum of valuable scientific and technical tools for their future careers.
Additional file 1 of Interstate disparities in the performances in combatting COVID-19 in India: efficiency estimates across states
Creators: name: Maity, Shrabanti
name: Ghosh, Nandini
name: Ummey Rummana Barlaskar
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Table S1. Descriptive statistics of output, input and exogenous variables. Table S2. Correlation Matrix.
Permutation orbifolds of heterotic Gepner models
Creators: name: Maio, M.
name: Schellekens, A. N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study orbifolds by permutations of two identical N=2 minimal models within the Gepner construction of four dimensional heterotic strings. This is done using the new N=2 supersymmetric permutation orbifold building blocks we have recently developed. We compare our results with the old method of modding out the full string partition function. The overlap between these two approaches is surprisingly small, but whenever a comparison can be made we find complete agreement. The use of permutation building blocks allows us to use the complete arsenal of simple current techniques that is available for standard Gepner models, vastly extending what could previously be done for permutation orbifolds. In particular, we consider (0,2) models, breaking of SO(10) to subgroups, weight-lifting for the minimal models and B-L lifting. Some previously observed phenomena, for example concerning family number quantization, extend to this new class as well, and in the lifted models three family models occur with abundance comparable to two or four.
description: 49 pages, 4 figures
Delias hagenensis Morinaka, Van Mastrigt & Sibatani 1993
Creators: name: Davenport, Chris
name: Grimaldi, Nicolas
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Pieridae
Delias
Delias hagenensis

description: Delias hagenensis Morinaka, Van Mastrigt & Sibatani, 1993 (Figs 17-18) Delias hagenensis was described from material collected at Pap Creek, Walya, 3000m in August 1973 and has since been recorded from Mt Hagen, Laiagam and Porgera (Parsons, 1998) and Tari (Lachlan, 2000). On Mt Hagen it is a common species however until now the female has not been recorded or illustrated in a publication. Description of female: Broadly similar to male but distinguished on the upperside forewing by the suffusion of grey scales in the basal area and beyond the discocellular vein, (uniformly black in the male), and more prominent white subapical spots. The basal area of the hindwing has a slightly blue tinge in fresh specimens and contains yellow streaks at the costal and anal border. On the underside, the forewing discocellular bar is broader than in males and the white subapical spots are larger, particularly in space M 1 – M 2.
description: Published as part of Davenport, Chris & Grimaldi, Nicolas, 2019, A new subspecies of Delias clathrata Rothschild, 1904 and records of other Delias species occurring on Mount Hagen, Papua New Guinea (Lepidoptera: Pieridae, Pierinae), pp. 53-67 in Sugapa Digital 11 (2) on page 57, DOI: 10.19269/sugapa2019.11(2).01, http://zenodo.org/record/3832851
description: {"references": ["Morinaka, S., Van Mastrigt, H. & Sibatani, A., 1993. A Study of the Delias eichhorni - complex from New Guinea Island (Lepidoptera; Pieridae) (1) Bull. Biog. Soc. Japan 48 (1): 17 - 26.", "Parsons, M. J., 1998. The butterflies of Papua New Guinea: their systematics and biology. Academic Press, London: 736 pp. + 104 pls.", "Lachlan, R. B., 2000. New species, subspecies and records of Delias Hubner (Lepidoptera: Pieridae) from the upper Ok Tedi and Tari regions, Papua New Guinea. Aust. Entom. 27 (3): 71 - 96."]}
FINANCIAL REPORTING QUALITY AND INVESTMENT EFFICIENCY; EVIDENCE  FROM INSURANCE COMPANIES IN ETHOPIA
Creators: name: KUMLACHEW TEGEGN
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: One of the objectives of financial reporting is to facilitate the efficient allocation of capital in the
economy. One of most important aspects of this fact is to improve the investment decisions. Also,
increase in the financial transparency can be considered as a useful factor to reduce investment
inefficiency. Many factors influence the quality of financial reporting. Also, many factors can
have an impact on financial reporting. Several studies have tried to investigate the link between
the financial reporting quality and financial and non-financial variables of  firms.  This study
intends to evaluate the association between financial reporting quality and investment efficiency
in the insurance sector in Ethiopia with reference to general (non-life) insurance companies on
basis of data covers  six years (2011-2016) period. The study selected sample of twelve (12)
insurance  companies to study them for a period of six years (2011-2016) with total of 72
observations  through panel data. Accordingly, the study used documentary analysis of
companies’ audited financial statements of general insurers which obtained from NBE and head
office of each insurance company. Financial reporting quality used as explanatory variable and
control variables were selected to disclose their  relationship and influence on the relationship
between financial reporting quality and investment efficiency. The results of panel least square
regression  analysis indicate that firm size, ROA (Return on Assets) and firm growth have
statistically  significant effects on the relationship between financial reporting quality and
investment efficiency in the insurance companies’ of Ethiopia. On the other hand firm age, cash
holding, leverage and tangibility of assets has statistically insignificant effect on relationship
between financial reporting quality and investment efficiency in the insurance companies’ of
Ethiopia. Based on this finding, the study suggests that, it is  essential to provide high-quality
financial reporting to influence users in making investments decisions, and to enhance market
efficiency. The higher the quality of financial reporting, the more significant are the benefits to
be gained by investors and users of the financial reports.
(Non)Construction of the Teacher: An Inquiry into Ontario’s Equity and Inclusive Education Strategy
Creators: name: Naimi, Kevin
name: Cepin, Jeanette
Publisher: name: Alberta Journal of Educational Research
Year: 2015

description: In this paper we perform a critical discourse analysis on the policy document Ontario’s Equity and Inclusive Education Strategy (2009). We examine the three core priorities the policy outlines: improve student achievement, reduce achievement gap and increase public confidence in public education. This document is approached from the context of new managerial educational reforms, to understand how the teacher is positioned within this policy. This policy, while laudable in intention, excludes the voice of the teacher. The policy offers much in the way of enhancing the students’ experience yet says little about the role of the classroom teacher or how the policy might be translated and facilitated into schools/classrooms across the province. Dans cet article, nous avons évalué, en employant une analyse critique du discours, le document de politique de l’Ontario Stratégie d’équité et d’éducation inclusive (2009). Nous examinons les trois priorités principales de la politique : améliorer le rendement des étudiants, réduire l’écart entre le rendement des élèves et accroitre la confiance du public dans le système d’éducation publique. Nous étudions le document sous l’optique des nouvelles réformes en matière de gestion et d’éducation afin d’y comprendre la place des enseignants. Cette politique aux intentions louables exclut la voix de l’enseignant. Elle offre beaucoup aux élèves pour améliorer leur expérience mais évoque à peine le rôle de l’enseignant ou l’intégration des mesures dans les écoles de la province.
description: Alberta Journal of Educational Research, Vol. 61 No. 1 (2015): Spring
Learning to Order Things
Creators: name: Cohen, W. W.
name: Schapire, R. E.
name: Singer, Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: There are many applications in which it is desirable to order rather than classify instances. Here we consider the problem of learning how to order instances given feedback in the form of preference judgments, i.e., statements to the effect that one instance should be ranked ahead of another. We outline a two-stage approach in which one first learns by conventional means a binary preference function indicating whether it is advisable to rank one instance before another. Here we consider an on-line algorithm for learning preference functions that is based on Freund and Schapire's 'Hedge' algorithm. In the second stage, new instances are ordered so as to maximize agreement with the learned preference function. We show that the problem of finding the ordering that agrees best with a learned preference function is NP-complete. Nevertheless, we describe simple greedy algorithms that are guaranteed to find a good approximation. Finally, we show how metasearch can be formulated as an ordering problem, and present experimental results on learning a combination of 'search experts', each of which is a domain-specific query expansion strategy for a web search engine.