Miracle-dz/UniFAR-FTUs huggingface dataset:
KIER DISCUSSION PAPER SERIES

The frequency of nominal wage adjustments varies with macroeconomic conditions, but existing models exclude such state dependency in wage setting and assume constant frequency under time-dependent setting. This paper develops a New Keynesian model in which xed wage-setting costs generate state-dependent wage setting. I nd that state-dependent wage setting reduces the real impacts of monetary shocks compared to time-dependent setting. However, when parameterized to reproduce the uctuations in wage rigidity in the U.S., the state-dependent wage-setting model generates responses to monetary shocks similar to those of the time-dependent model. The trade-o¤ between output gap and ination variability is also similar between these two models. JEL classi cation: E31, E32. Keywords: Nominal wage stickiness, state-dependent setting, time-dependent setting, monetary nonneutralities, New Keynesian model. This paper is based on the third chapter of my dissertation submitted to the Ohio State University. I am grateful to Bill Dupor for his comments, encouragement, and guidance. I also would like to thank the Editor (Pierpaolo Benigno), three anonymous referees, Michael Dotsey, Paul Evans, Yuko Imura, Aubhik Khan, Robert King, Oleksiy Kryvtsov, Nan Li, Virgiliu Midrigan, Tomoyuki Nakajima, Masao Ogaki, Ricardo Reis, Jose-Victor Rios-Rull, Takeki Sunakawa, Tamon Takamura, Julia Thomas, Alexander Wolman, and seminar and conference participants at the Macro Lunch Workshop at the Ohio State University, DSGE Workshop at Senshu, Macroeconomics Workshop at Kyoto, Bank of Canada, Eastern Economic Association Annual Conference 2011, Midwest Economics Association Annual Meeting 2011, Summer Workshop on Economic Theory 2014, European Meeting of the Econometric Society 2014, and Fall 2014 Midwest Macro Meeting for valuable comments and suggestions. I thank the Kyoto University Foundation and Zengin Foundation for nancial support. Any remaining errors are my own. yAssistant Professor, Institute of Economic Research, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan. Tel:+81-75-753-7153, Email: takahashi@kier.kyoto-u.ac. jp
Charged-particle multiplicities in proton-proton collisions at root s = 0 . 9 to 8 TeV

A detailed study of pseudorapidity densities and multiplicity distributions of primary charged particles produced in proton–proton collisions, at √ s = 0.9, 2.36, 2.76, 7 and 8 TeV, in the pseudorapidity range |η| < 2, was carried out using the ALICE detector. Measurements were obtained for three event classes: inelastic, non-single diffractive and events with at least one charged particle in the pseudorapidity interval |η| < 1. The use of an improved track-counting algorithm combined with ALICE’s measurements of diffractive processes allows a higher precision compared to our previous publications. A KNO scaling study was performed in the pseudorapidity intervals |η| < 0.5, 1.0 and 1.5. The data are compared to other experimental results and to models as implemented in Monte Carlo event generators PHOJET and recent tunes of PYTHIA6, PYTHIA8 and EPOS.
Hepatitis E virus in lettuce and water

1 Hepatitis E virus in lettuce and water 2 samples: a method-comparison study 3 4 Walter Randazzo, Andrea Vasquez-García, Maria A. Bracho, Maria Jesus Alcaraz, 5 Rosa Aznar, Gloria Sánchez* 6 7 8 Department of Microbiology and Ecology, University of Valencia. Av. Dr. Moliner, 50. 46100 9 Burjassot. Valencia, Spain. 10 Department of Preservation and Food Safety Technologies, IATA-CSIC, Av. Agustín 11 Escardino 7. 46980 Paterna. Valencia, Spain. 12 Faculty of Animal Science and Food Engineering, University of São Paulo, Av. Duque de 13 Caxias Norte, 225. 13635-900 Pirassununga, São Paulo, Brazil. 14 Microbiology Service, Hospital Clínico Universitario. Av. Blasco Ibañez, 17. 46010. Valencia, 15 Spain. 16 Joint Research Unit in Infection and Public Health, FISABIO-Public Health – University of 17 Valencia. Av. Catalunya, 21. 46020. Valencia, Spain. 18 CIBER Epidemiología y Salud Pública, Valencia, Spain. 19 20
Creating homoclinic tangencies by C perturbations

An invariant set Σ for a di eomorphism of a compact manifold is hyperbolic if and only if the tangent bundle TMΣ above S splits into two invariant bundles, the rst being uniformly contracted by an iterate of the di eomorphism, and the other uniformly expanded. A hyperbolic di eomorphism will be a di eomorphism such that its chain-recurrent set (see [Con78]), is hyperbolic. This is equivalent to being Axiom A and satisfying the no cycle condition. J.Palis and S.Smale conjectured in [PS70] that
Outdoor environmental education programme leaders’ theories of experiential learning

ABSTRACT Teachers’ practice is based on their beliefs about how student learning should be developed. In the practice of programme leaders in outdoor environmental education centres, experiential learning is considered to be one of the prominent learning theories. This study analyses the ways in which experiential learning is interpreted and transferred into the practice of programme leaders in five outdoor environmental education centres in the Czech Republic. The authors collected qualitative data from interviews with the programme leaders (N = 17) and from observations of five different outdoor environmental education programmes. They identified three distinctive experiential learning theories representing the leaders’ beliefs and practices. Further, the implications for future practice are discussed.
Vulnerability evaluation and regionalization of drought disaster risk of maize in Northwestern Liaoning Province

Based on IPCC definition of vulnerability within the context of climate change,a risk assessment model of maize vul-nerability to drought was established from the perspectives of exposure,sensitivity and adaptability.Given drought disaster risk of maize in Northwestern Liaoning Province,17 indexes related to crop physiological,meteorological and socio-economic factors were selected for the model simulation.The vulnerability indexes of maize to drought were calculated using the entropy and comprehen-sive weight evaluation methods.Four typical drought years(1999,2000,2001 and 2006) in Northeastern Liaoning Province were used to verify and test the applicability of the model.The maize vulnerability indexes to drought were divided into 5 grades on which basis maize vulnerability zone maps were isolated in GIS environment for typical drought years.The results showed that the areas with high drought vulnerability were mainly concentrated around Fuxin,Chaoyang and Huludao Counties.The areas with high vul-nerability displayed a temporal regular pattern of 2006 1999 2001 2000.The level of drought vulnerability in 2006 was the highest,and had the most extensive impact area due to the precipitation anomaly in the growing season of that year.Regression anal-ysis of maize vulnerability indexes to drought in the four typical drought years and maize yield loss was also conducted.The analysis showed a basic agreement among the factors for F test of significant at α=0.05. This indicated that it was reasonable to evaluate and predict the maize vulnerability to drought using the established model in the region.The model could be used to evaluate and predict maize vulnerability to drought,drought disaster risk and maize yield loss caused by drought.The results of this study strengthened further basis for local agricultural drought risk assessment and early warning.
All the Numbers are US: Large-scale Abuse of Contact Discovery in Mobile Messengers

— Contact discovery allows users of mobile messengers to conveniently connect with people in their address book. In this work, we demonstrate that severe privacy issues exist in currently deployed contact discovery methods. Our study of three popular mobile messengers (WhatsApp, Signal, and Telegram) shows that, contrary to expectations, large-scale crawling attacks are (still) possible. Using an accurate database of mobile phone number preﬁxes and very few resources, we have queried 10% of US mobile phone numbers for WhatsApp and 100% for Signal. For Telegram we ﬁnd that its API exposes a wide range of sensitive information, even about numbers not registered with the service. We present interesting (cross-messenger) usage statistics, which also reveal that very few users change the default privacy settings. Regarding mitigations, we propose novel techniques to signiﬁcantly limit the feasibility of our crawling attacks, especially a new incremental contact discovery scheme that strictly improves over Signal’s current approach. Furthermore, we show that currently deployed hashing-based contact discovery protocols are severely broken by comparing three methods for efﬁcient hash reversal of mobile phone numbers. For this, we also propose a signiﬁcantly improved rainbow table construction for non-uniformly distributed inputs that is of independent interest.
The Effects of Profit Margins on Dividend Payout in Kericho Tea Estates

Tea sector is a major source of revenue to the Kenyan government. The study established the effect of production index on dividend payout policy on firms. The general objective analyzes the effect of profit margin on dividend payout in Kericho tea estates. A descriptive research design approach was used and the target population comprised of all the 105 respondents for a target population of 300 in selected tea factories in the county. The questionnaire was personally administered and the validity of the study was ensured through critical review by the research supervisor. The analysis was performed using data derived from the financial statements of listed factories under KTDA during the most recent period. Ordinary Least Squares model was used to estimate the regression equation. The data was analyzed using regression with the help of statistical package for social sciences (S.P.S.S) computer software program version 21 and presented using a pie chart and tables. Permission was obtained from the management of the institution before questioning and interviewing occurred.
University of São Paulo School of Economics, business Administration and Accounting at Ribeirão Preto Economics Department Graduate Program in Economics-Area: Applied Economics

MOURA, R. C. Spillovers and jumps in global markets: a comparative analysis 2018. Dissertation (Masters) School of Economics, business Administration and Accounting at Ribeirão Preto, University of São Paulo, Ribeirão Preto, 2018. We analyze the relation between volatility spillovers and jumps in financial markets. For this, we compared the volatility spillover index proposed by Diebold and Yilmaz (2009) with a global volatility component, estimated through a multivariate stochastic volatility model with jumps in the mean and in the conditional volatility. This model allows a direct dating of events that alter the global volatility structure, based on a permanent/transitory decomposition in the structure of returns and volatilities, and also the estimation of market risk measures. We conclude that the multivariate stochastic volatility model solves some limitations in the spillover index and can be a useful tool in measuring and managing risk in global financial markets. Key-words: Multivariate Stochastic Volatility, Jumps,Common Factor, Bayesian Estimation.
Reflection on the work at the conference

According to mathematically-centered perspective we planned to consider AM-T as being related to mathematical content and concepts at the following levels: upper secondary level, tertiary educational level, the transition stages between and within the two secondary and tertiary levels. The research presented in this category included (but was not bounded to) conceptual attainment, proof techniques, problemsolving, instructional techniques and processes of abstraction.
Absence of Day 3 Steroid Response Predicts Colitis-Related Complications and Colectomy in Hospitalized Ulcerative Colitis Patients

Abstract Background and Aims Rates and predictors of complications among hospitalized ulcerative colitis (UC) patients requiring high-dose corticosteroids have not been well-characterized, especially in the era of biologics. Methods We retrospectively studied consecutive UC admitted for a colitis flare requiring high-dose corticosteroids between April 2006 and December 2016. We evaluated rates and determinants of serious in-hospital complications (colitis-related complications, systemic complications, peri-operative complications and death) and colectomy. We performed multivariable logistic regression analysis to assess the independent association between day 3 steroid response and the risk of incurring in-hospital complications and colectomy. Results Of 427 consecutive admissions, serious in-hospital complications occurred in 87 cases (20%), while colitis-related complications occurred in 47 cases (11%). There were significantly fewer colitis-related complications during the 2012 to 2016 period as compared to the 2006 to 2011 period (7% versus 16%, P < 0.01), but significantly more systemic complications (16% versus 5%, P = 0.001). In-hospital colectomy occurred in 50 hospitalizations (12%). Day 3 steroid response was achieved in 167 hospitalizations (39%). Day 3 steroid nonresponse was significantly associated with colitis-related complications among males (adjusted odds ratio [aOR] 8.22, 95% confidence interval [CI] 1.77 to 38.17), but not among females (aOR 1.39, 95% CI 0.54 to 3.60). Older age, C. difficile infection and admission to a non-gastroenterology service were also associated with a higher risk of in-hospital complications. Day 3 steroid nonresponse was significantly associated with in-hospital colectomy (aOR 10.10, 95% CI 3.56 to 28.57). Conclusion In our series of UC hospitalizations for a colitis flare, absence of day 3 steroid response was associated with an increased risk of colitis-related complications among males and of in-hospital colectomy. Clinicians should recognize the importance of early steroid response as a marker to guide the need for treatment optimization.
In vivo and in vitro stimulatory effects of Cordyceps sinensis on testosterone production in mouse Leydig cells

The in vivo and in vitro effects of Cordyceps sinensis (CS) and its extracted fractions on the secretion of testosterone in mice were studied. CS, F2 (water soluble protein), and F3 (poorly water soluble polysaccharide and protein) significantly stimulated in vitro testosterone production in purified mouse Leydig cells. However, F1 (water soluble polysaccharide) had no effect (p>0.05). F2 and F3 stimulated in vitro testosterone production in doseand time-dependent relationships with maximal responses at 3 mg/ml for 3 h (p < 0.05). An in vivo study illustrated that testosterone levels in plasma were significantly increased by CS, F2, and F3, respectively (p < 0.05). Because CS, F2, and F3 stimulated both in vitro and in vivo testosterone secretions in mice, it is possible that CS might contribute to an alternative medicine for the treatment of some reproductive problems caused by insufficient testosterone levels in human males. D 2003 Elsevier Inc. All rights reserved.
Understanding User Perceptions of Security and Privacy for Group Chat: A Survey of Users in the US and UK

Secure messaging tools are an integral part of modern society. While there is a significant body of secure messaging research generally, there is a lack of information regarding users’ security and privacy perceptions and requirements for secure group chat. To address this gap, we conducted a survey of 996 respondents in the US and UK. The results of our study show that group chat presents important security and privacy challenges, some of which are not present in one-to-one chat. For example, users need to be able to manage and monitor group membership, establish trust for new group members, and filter content that they share in different chat contexts. Similarly, we find that the sheer volume of notifications that occur in group chat makes it extremely likely that users ignore important security or privacy notifications. We also find that respondents lack mechanisms for determining which tools are secure and instead rely on non-technical strategies for protecting their privacy—for example, self-filtering what they post and carefully tracking group membership. Based on these findings, we provide recommendations on how to improve the security and usability of secure group chat.
MULTI-MODAL DYNAMIC MODELS FOR PERIODICALLY HETEROGENEOUS MEDIA

Propagation of elastic waves through discrete and continuous periodically heterogeneous media is studied. A two-scale asymptotic procedure allows us to derive macroscopic dynamic equations applicable at frequencies close to the resonant frequencies of the unit cells. Matching the asymptotic solutions by two-point Padé approximants, we obtain new higher-order equations that describe the dynamic behaviour of the medium both in the low and in the high frequency limits. An advantage of the proposed approach is that all the macroscopic parameters can be determined explicitly in terms of the microscopic properties of the medium. Dispersion diagrams are evaluated and the propagation of transient waves induced by pulse and harmonic loads is considered. The developed analytical models are verified by comparison with data of numerical simulations. For high-contrast media, we can observe an analogy between the propagation of waves in heterogeneous solids and in thin walled waveguides. It is also shown that different combinations of cell resonances may uprise some additional types of waves that do not appear in the classical continuous theory.
Thermocline depth and euphotic zone thickness regulate the abundance of diazotrophic cyanobacteria in Lake Tanganyika

Abstract. In spite of the fact that cyanobacterial blooms are classically associated with high nutrient loadings, there is also abundant evidence revealing that nitrogen fixing cyanobacteria (diazotrophs) can prevail under oligotrophic conditions. The mechanisms favouring diazotrophs in oligotrophic water bodies remain, however, poorly resolved. Here we analyse biogeochemical and ecological factors regulating the distribution of nitrogen fixing cyanobacteria in the oligotrophic Lake Tanganyika using sensor profiles of hydrodynamic conditions, nutrient and pigment analyses, as well as phytoplankton community assessment. During periods of stable or re-establishing water column stratification, we find evidence that the location of the thermocline and the euphotic depth can create a functional niche for diazotrophic cyanobacteria: Nitrogen limitation provides an ecological advantage for an apparent mutualistic interaction between diazotrophs and diatoms when the upward transport of nitrate into the euphotic zone is reduced by a subjacent thermocline. Diazotrophs, comprising the filamentous genera Dolichospermum and Anabaenopsis, are key players under these conditions (up to 41.7 % of phytoplankton community), while they are rare otherwise. By contrast, a thermocline located within the euphotic zone allows rapid vertical transport of nitrate for a thriving nitrate assimilating phytoplankton community that evidently outcompetes diazotrophs. Finally, multiple observations of relatively high diazotroph densities in the upwelling region in the South of Lake Tanganyika imply that they may additionally thrive under high nutrient conditions, when nitrogen is heavily deficient with respect to phosphorous. This study highlights that, under nitrogen deficient conditions, cyanobacterial blooms may form in response to reduced nutrient fluxes to the productive surface waters.
Ten-Year Retrospective Follow-Up Study of the TiOblastTM Dental Implantcid_237

Purpose: Long-term results in the clinical outcome of different implant systems, including high patient numbers and a long follow-up time, are rare. This retrospective study evaluated the cumulative survival rate of a self-tapping, cylindrical implant system with a conical implant-abutment connection after 10 years of prosthetic loading. Materials and Methods: A total of 516 TiOblastTM implants (Astra Tech AB, Mölndal, Sweden) were placed in 108 patients. The patients were treated in the Department of Oral and Maxillofacial Surgery, Johannes Gutenberg University, Mainz, Germany, between September 1994 and May 2005. The main indications for implantation were the treatment of edentulous mandibles (74%) and partial edentulism (15%). Twenty-three implants were placed postradiation, and a further 64 implants were irradiated after insertion. In 153 implants, a bony augmentation was conducted prior to implantation. Results: The in situ rate was 89.7% after an average implantation time of 108 months. Eighty-three patients with 403 implants were available for investigation. Seventeen patients with 76 implants have died since 1994. Absence of osseointegration (n = 22), peri-implantitis (n = 18), fracture of the implants (n = 9), failing of primary stability (n = 2), and implants next to tumors (n = 2) were the reasons of explantation in 26 patients. Under analysis with different implant success-assessment criteria, the success rate showed results from 76 to 89%. Conclusion: With respect to the critical patient selection including a high number of patients with minor and major augmentations, the 10-year clinical use of the studied implant system showed acceptable results.
IDENTIFYING mRNA SEQUENCES AND PROTEINS BY USE OF BCH CODES

In a recent work, a model of an intra-cellular transmission system of genetic information, similar to a digital communication system, has been proposed and narrow sense BCH error correcting codes over Z 4 and F 4 have been used for identifying a mathematical structure in DNA and mRNA sequences. In this work, for mRNA sequences, we use the proposed transmission system and extend its capability by considering not only narrow sense as well as non-narrow sense BCH codes. As a consequence, we are able to identify a mathematical structure for an increased number of mRNA sequences. For proteins, we establish an analogy between properties of error-correcting codes and proteins and propose a methodology for establishing a mathematical structure and for representing proteins by use of BCH codes over Z 20 and F 4 x F 5 . The mapping from amino acids to Z 20 is defined by using Dayhoff's matrix and the isometry between Z 4 and F 4 . Consequently, some mRNA sequences and proteins from NCBI and PDB data banks, respectively, are identified.
The Role of HER2/Neu and BRCA1 Genes in the Diagnosis of Breast Cancer among Sudanese Women

Background: Knowledge of HER2/Neu and BRCA1 Genes might be helpful for development of strategies for decreasing the burden of risk of breast cancer. Therefore, the aim of this study to detect the role of HER2/Neu and BRCA1 Genes expression in diagnosis of breast cancer in Sudanese women. Methodology: A total of 100 tissue samples obtained from patients with breast cancer in addition to 50 tissue samples obtained from patients with benign breast lesions, were detected the expression of HER2/Neu and BRCA1 Genes by Polymerase Chain Reaction (PCR). Results: The prevalence of HER2/Neu and BRCA1 Genes, among cases was 6%, and 10% respectively. Conclusion: HER2/Neu and BRCA1 Genes have a considerable contribution to etiology of breast cancer in Sudan that requires further consideration.