Miracle-dz/UniFAR-FTUs huggingface dataset:
Studies on The Genotoxicity of An Organophosphorous Pesticide Baytex-1000

Abstract Baytex-1000 is an organophorous pesticide. It is widely used both as a larvicide and insecticide in the National Malaria Eradication Programme in India. Malaria control workers are occupationally exposed to Baytex. Genotoxicity of this pesticide was studied by assaying Mitotic Index (MI), Chromosome Aberrations (CA), Sister Chromatid Exchanges (SCE) and Satellite Associations (SA), in short term lymphocyte cultures. Peripheral blood samples were obtained from 60 malaria control workers and equal number of matched controls. MI increased upto exposure period of 5 years and declined thereafter. CA in controls comprised acentric fragment, chromatid gaps and breaks only, whereas in exposed samples, dicentrics, rings, chromosomal gaps, breaks and translocations; chromatid gaps, breaks and isochromatid exchanges were recorded. The frequencies of CA and SCE were significantly increased by smoking and alcohol consumption (P<0.5) and depicted positive correlation with period of exposure. D-G-type SA outnumbered 2D-2G types. The mean frequencies of various parameters in controls and workers exposed to Baytex respectively were: MI (4.29 & 6.43), CA (0.933 & 4.200), SCE (4.32 & 7.28) and SA (5.11 & 16.5). The differences were statistically significant (P < 0.05). Time and dose-yield effects of Baytex on micronuclei induction in mouse test system were also significant (p-0.05). All the cytogenetic end points investigated conclusively show that Baytex-1000 is a highly genotoxic pesticide. The mechanism of its action has been described.
Determinant of Improved Modern Agricultural Inputs Adoption in Case of Woliso Woreda

This study analyzes the determinant of improved modern agricultural technology adoption by farmers in Woliso woreda. The data used for the study was obtained from 100 randomly selected sample households in the study area. Probit model is employed in analyzing the determinants of farmers’ decisions to adopt modern technologies on their farm land as measured by the use of modern fertilizer. The variable such as land ownership, level of education, number of oxen and family size, positively and significantly affected the farm households’ fertilizer adoption decision; while age affected their decision negatively and significantly. On the other hand, variables such as distance from market, credit accessibility, education, family size and access to extensions service have a positive and significant impact on adoptions of High Yield Variety while age has a negative and significant impact on their decision. Keywords: Technology Adoption, Improved seed, Agricultural Sector, Fertilizer and High yield Variety probit model
Understanding Task-Performance Chain Feed-Forward and Feedback Relationships in E-health

The associations between the use of effective technology and user performance, and the effect of user performance on technology use and task-technology fit (TTF), requires further research (Furneauz, 2012). To address this call for future research, we examined the feed-forward from use and TTF to performance and the feedback from performance to use and TTF by using longitudinal data (n = 156) collected from participants using two custom-built e-health systems that we designed to provide education to develop self-management practices for study participants with newly diagnosed type 2 diabetes. We captured participants’ use of the two systems, their perceptions of TTF, and their health performance through biomedical outcomes every three months over a 12month period. Our findings show significant and different feed-forward and feedback relationships. In general, our results also show that system use and a negative TTF-use interaction significantly affected performance through feed-forward, while participant performance significantly affected use and negatively affects TTF through feedback. We discuss the implications for task-performance chain (TPC) research and developing and using e-health systems in chronic care.
Clustering binary data streams with K-means

Clustering data streams is an interesting Data Mining problem. This article presents three variants of the K-means algorithm to cluster binary data streams. The variants include On-line K-means, Scalable K-means, and Incremental K-means, a proposed variant introduced that finds higher quality solutions in less time. Higher quality of solutions are obtained with a mean-based initialization and incremental learning. The speedup is achieved through a simplified set of sufficient statistics and operations with sparse matrices. A summary table of clusters is maintained on-line. The K-means variants are compared with respect to quality of results and speed. The proposed algorithms can be used to monitor transactions.
Effects of varying pH on the growth rate of the marine diatom Licmophora abbreviata

Growth rates of Licmophora abbreviata were studied under three different treatments at pH 7.0, 8.0, and 9.0 with each treatment consisting of three replicates. Previous studies have indicated that diatoms prefer a pH of 8.1 for optimal growth and therefore, the pH 8.0 treatment was the control for the experiment. The initial concentration of each replicate was 1.55x10^3 cells/mL and was determined through the use of a haemocytometer. After a period of 11 days, the maximum growth rates for each treatment was calculated and found to be 2.18 x 10^4 cells/day for pH 7.0, 1.46x10^4 cells/day for pH 8.0 and 1.13x10^4 cells/day for pH 9.0. Additionally, the diatoms grown in pH 8.0 media resulted in the highest concentration after 11 days with pH 7.0 and pH 9.0 following respectively. An ANOVA one-way test was conducted to determine the statistical significance of the data and came back statistically significant, with a calculated p-value of 0.00079, at a confidence level of 95%. Observations of cell shape between the different treatments found that L. abbreviata was triangular shaped in pH 7.0 and 8.0 but not in pH 9.0.
On the Nernst effect in fluctuating superconductors: Serbyn, Skvortsov, and Varlamov reply

This is an extended Reply to Comment by A. Sergeev, M.Y. Reizer, and V. Mitin [arXiv:0906.2389] on our Letter [Phys. Rev. Lett. 102, 067001 (2009)]. We explicitly demonstrate that all claims by Sergeev et al. are completely unfounded, because their underlying theoretical work contains multiple errors and inconsistencies. For this reason, there is no need to revise the existing theories of thermoelectric response in superconductors.
No 680 Interactions among High-Frequency Traders

Using unique transactions data for individual high-frequency trading (HFT) firms in the U.K. equity market, we examine the extent to which the trading activity of individual HFT firms is correlated with each other and the impact on price efficiency. We find that HFT order flow, net positions, and total volume exhibit significantly higher commonality than those of a comparison group of investment banks. However, intraday HFT order flow commonality is associated with a permanent price impact, suggesting that commonality in HFT activity is information-based and so does not generally contribute to undue price pressure and price dislocations.
Search for 150 MHz radio emission from extrasolar planets in the TIFR GMRT Sky Survey

The ongoing radio continuum TIFR GMRT Sky Survey (TGSS) using the Giant Metrewave Radio Telescope (GMRT) at 150 MHz offers an unprecedented opportunity to undertake a fairly deep search for low-frequency radio emission from nearby extrasolar planets. Currently TGSS images are available for a little over a steradian, encompassing 175 confirmed exoplanetary systems. We have searched for their radio counterparts in the TGSS (150 MHz), supplemented with a search in the NRAO VLA Sky Survey (NVSS) and the VLA FIRST survey at 1.4 GHz. For 171 planetary systems, we find no evidence of radio emission in the TGSS maps, placing a3 σ upper limit between 8.7 mJy and 136 mJy (median ∼24.8 mJy) at 150 MHz. These non-detections include the 55 Cnc system for which we place a 3σ upper limit of 28 mJy at 150 MHz. Nonetheless, for four of the extrasolar planetary systems, we find TGSS radio sources coinciding with or located very close to their coordinates. One of these is 61 Vir: for this system a large radio flux density was predicted in the scenario involving magnetosphere-ionosphere coupling and rotation-induced radio emission. We also found 150 MHz emissions toward HD 86226 and HD 164509, where strong radio emission can be produced by the presence of a massive satellite orbiting a rapidly rotating planet. We also detected 150 MHz emission within a synthesized beam from 1RXS1609 b, a pre-main-sequence star harboring a ∼14 Jupiter mass planet (or a brown dwarf). With a bright X-ray-UV star and a high mass, the planet 1RXS1609 b presents the best characteristics for rotation-induced emissions with high radio power. Deeper high-resolution observations toward these planetary systems are needed to discriminate between the possibilities of background radio-source and radio-loud planets. At 1.4 GHz, radio emission toward the planet-harboring pulsar PSR B1620-26 is detected in the NVSS. Emissions at 1.4 GHz are also detected toward the very-hot-Jupiter WASP-77A b (in the FIRST survey) and the giant planet HD 43197 b in a highly eccentric orbit (in NVSS). We briefly discuss these detections, as well as the non-detection of the vast majority of exoplanets.
The star formation history of galaxies: the role of galaxy mass, morphology and environment

We analyze the star formation history (SFH) of galaxies as a function of present-day environment, galaxy stellar mass and morphology. The SFH is derived by means of a non-parametric spectrophotometric model applied to individual galaxies at z ~ 0.04- 0.1 in the WINGS clusters and the PM2GC field. The field reconstructed evolution of the star formation rate density (SFRD) follows the values observed at each redshift (Madau & Dickinson 2014), except at z > 2 where our estimate is ~ 1.7x higher than the high-z observed value. The slope of the SFRD decline with time gets progressively steeper going from low mass to high mass haloes. The decrease of the SFRD since z = 2 is due to 1) quenching - 50% of the SFRD in the field and 75% in clusters at z > 2 originated in galaxies that are passive today - and 2) the fact that the average SFR of today's star-forming galaxies has decreased with time. We quantify the contribution to the SFRD(z) of galaxies of today's different masses and morphologies. The current morphology correlates with the current star formation activity but is irrelevant for the past stellar history. The average SFH depends on galaxy mass, but galaxies of a given mass have different histories depending on their environment. We conclude that the variation of the SFRD(z) with environment is not driven by different distributions of galaxy masses and morphologies in clusters and field, and must be due to an accelerated formation in high mass haloes compared to low mass ones even for galaxies that will end up having the same galaxy mass today.
Genetic structure of Tetraclinis articulata, an endangered conifer of the western Mediterranean basin

Tetraclinis articulata (Vahl) Masters is a tree distributed throughout the western Mediterranean basin. It is included in the IUCN (International Union for Conservation of Nature) red list, and protected by law in several of the countries where it grows. In this study we examined the genetic diversity and genetic structure of 14 populations of T. articulata in its whole geographic range using ISSR (inter simple sequence repeat) markers. T. articulata showed moderate genetic diversity at intrapopulation level and high genetic differentiation. The distribution of genetic diversity among populations did not exhibit a linear pattern related to geographic distances, since all analyses (principal coordinate analysis, Unweighted pair group method with arithmetic mean dendrogram and Bayesian structure analysis) revealed that spanish population grouped with Malta and Tunisia populations. Although it is possible that T. articulata earlier was natural in Southeast Spain, results suggest that the current population has been reintroduced into the Iberian Peninsula in historical times, due to its utility in mining and building. In addition, results could be used to propose management guidelines for the conservation of T. articulata.
Production , Manufacturing and Logistics The Dynamic Dispatch Waves Problem for same-day delivery

We study same-day delivery (SDD) systems by formulating the Dynamic Dispatch Waves Problem (DDWP). The DDWP models an order dispatching problem faced by a distribution center, where orders arise dynamically throughout a service day and must be delivered by day’s end. At each decision epoch (wave), the system’s operator chooses whether or not to dispatch a single vehicle loaded with orders ready for service in order to minimize vehicle travel costs and penalties for unserved requests. We formulate an arc-based integer programming model and design local search heuristics to solve a deterministic DDWP where order arrival times are known in advance. We use the deterministic variant to design an a priori solution approach, and provide two approaches to obtain dynamic policies using the a priori solution. We test and compare solution approaches on two sets of instances with different geography scenarios, size, information dynamism, and order timing variability. The computational results suggest that our best dynamic policy can reduce the average cost of an a priori policy by 9.1% and substantially improves the fraction of orders delivered (order coverage), demonstrating the importance of reactive optimization for dynamic SDD services. We also analyze the tradeoff between two common SDD objectives: total cost minimization versus order coverage maximization. We find structural differences in the dispatch frequency and route duration of solutions for the two different objectives, and demonstrate empirically that small increases in order coverage may require substantial increases in vehicle travel cost. © 2018 Elsevier B.V. All rights reserved.
What kind of /r/ is linking /r/? An analysis of the realization of linking /r/ in RP on the basis of selected English phonetic books and usage-based accounts

The paper looks at the phenomenon of linking /r/ in RP and aims to find out what the realization of linking /r/ in RP is according to British phoneticians and according to specialists who carried out empirical research on linking /r/. The present author showed in a different article that according to several Polish phonetics scholars it was the alveolar tap that was typically used for linking /r/. However, this finding is not supported by the results of the present analysis: it is the post-alveolar approximant that is the principal realization of linking /r/ in the view of almost all of the leading British specialists as well as foreign researchers. Additionally, the alveolar tap has been found to possess certain associations which, claims the author, carry important implications for teaching pronunciation to foreign learners of RP English.
The environments of high redshift radio galaxies and quasars: probes of protoclusters

We use the GALFORM semi-analytical model to study high-density regions traced by radio galaxies and quasars at high redshifts. We explore the impact that baryonic physics has upon the properties of galaxies in these environments. Star-forming emission-line galaxies (Ly α and H α emitters) are used to probe the environments at high redshifts. Radio galaxies are predicted to be hosted by more massive haloes than quasars, and this is imprinted on the amplitude of galaxy overdensities and cross-correlation functions. We find that Ly α radiative transfer and active galactic nucleus feedback indirectly affect the clustering on small scales and also the stellar masses, star formation rates and gas metallicities of galaxies in dense environments. We also investigate the relation between protoclusters associated with radio galaxies and quasars, and their present-day cluster descendants. The progenitors of massive clusters associated with radio galaxies and quasars allow us to determine an average protocluster size in a simple way. Overdensities within the protoclusters are found to correlate with the halo descendant masses. We present scaling relations that can be applied to observational data. By computing projection effects due to the wavelength resolution of modern spectrographs and narrow-band filters, we show that the former have enough spectral resolution to map the structure of protoclusters, whereas the latter can be used to measure the clustering around radio galaxies and quasars over larger scales to determine the mass of dark matter haloes hosting them
Glycemic index, glycemic load, and risk of digestive tract neoplasms: a systematic review and meta-analysis.

BACKGROUND Habitual consumption of diets with a high glycemic index (GI) and a high glycemic load (GL) may influence cancer risk via hyperinsulinemia and the insulin-like growth factor axis. OBJECTIVE The objective was to conduct a systematic review to assess the association between GI, GL, and risk of digestive tract cancers. DESIGN Medline and Embase were searched for relevant publications from inception to July 2008. When possible, adjusted results from a comparison of cancer risk of the highest compared with the lowest category of GI and GL intake were combined by using random-effects meta-analyses. RESULTS Cohort and case-control studies that examined the risk between GI or GL intake and colorectal cancer (n = 12) and adenomas (n = 2), pancreatic cancer (n = 6), gastric cancer (n = 2), and squamous-cell esophageal carcinoma (n = 1) were retrieved. Most case-control studies observed positive associations between GI and GL intake and these cancers. However, pooled cohort study results showed no associations between colorectal cancer risk and GI intake [relative risk (RR): 1.04; 95% CI: 0.92, 1.12; n = 7 studies] or GL intake (RR: 1.06; 95% CI: 0.95, 1.17; n = 8 studies). Furthermore, no significant associations were observed in meta-analyses of cohort study results of colorectal cancer subsites and GI and GL intake. Similarly, no significant associations emerged between pancreatic cancer risk and GI intake (RR: 0.99; 95% CI: 0.83, 1.19; n = 5 studies) or GL intake (RR: 1.01; 95% CI: 0.86, 1.19; n = 6 studies) in combined cohort studies. CONCLUSIONS The findings from our meta-analyses indicate that GI and GL intakes are not associated with risk of colorectal or pancreatic cancers. There were insufficient data available regarding other digestive tract cancers to make any conclusions about GI or GL intake and risk.
Redressing the growing concern of the education sector in Nigeria

The status of the Nigerian educational system at the moment is unenviable. It is low in quality and standard, limited in its reach and disturbing in its future. There have been some deliberate attempt/efforts by government to redress the declining fortune of the educational system. Some International donor agencies, like UNICEF, the World Bank, UNESCO, and DFID are also collaborating with government at all levels with a view to coming up with a holistic approach in addressing educational concerns. The intention of this paper is to enhance debates on how to redress past mistakes and unintended failures within the Nigerian education policies, programmes and provisions. The paper is of the view that Nigeria requires a system that will insulate education from unnecessary politicization. Education formulation and policy consideration should be for the good of all. The paper is also of the view that there is need for a holistic reorientation, re-engineering and re-branding of education, especially teacher training and recruitments, if effective quality of education is to be achieved in Nigeria. Government should also ensure that all reports, pronouncements and positions canvassed by educational accreditation, visitations and probe panels are implemented. Key Words: Education, Minimum academic standard; Politicization of education; Quality, Teacher recruitment.
No Surviving Companion in Kepler's Supernova

We have surveyed Kepler’s supernova remnant in search of the companion star of the explosion. We have gone as deep as 2.6 L⊙ in all stars within 20% of the radius of the remnant. We use FLAMES at the VLT-UT2 telescope to obtain high-resolution spectra of the stellar candidates selected from Hubble Space Telescope (HST) images. The resulting set of stellar parameters suggests that these stars come from a rather ordinary mixture of field stars (mostly giants). A few of the stars seem to have low [Fe/H] (<−1) and they are consistent with being metal-poor giants. The radial velocities and rotational velocities vrot sin i are very well determined. There are no fast rotating stars because vrot sin i < 20 km s−1 for all the candidates. The radial velocities from the spectra and the proper motions determined from HST images are compatible with those expected from the Besançon model of the Galaxy. The strong limits placed on luminosity suggest that this supernova could have arisen either from the core-degenerate scenario or from the double-degenerate scenario.
Phosphorus fractions and correlation with soil attributes in a chronosequence of agricultural under no-tillage.

In no-tillage (NT) soils, changes in the quantity and quality of soil organic matter (SOM) have been observed over time. These changes can interfere with the dynamics of P in surface soil layers. Thus, the objectives of this study were: to evaluate the organic and inorganic fractions of P and their degree of lability (labile, moderately labile, and moderately recalcitrant) in an Oxisol under NT for 6 years (NT6), 14 years (NT14), and 22 years (NT22) and cultivated with a succession of soybean and corn/wheat. The fractions were evaluated for 16 years of NT, with the last four years under integrated corn second crop and Brachiaria (NT16+B). We also analyzed an area of native forest, as well as analyzing the correlations between the results of the P fractions of these areas with other attributes such as total carbon content, vegetable waste deposited on the ground, phosphorus and humic fractions remaining in SOM. From each of the areas, samples were collected at 0.00-0.05 m and 0.05-0.10 m. A completely randomized design with 5 replicates was used. Management of phosphorus fertilization and SOM following adoption of the SPD of time (6 to 22 years) increased the levels of all fractions of inorganic P (0.0 to 0.10 m), as well as the fractions of labile (0.05-0.10 m), moderately labile (0.0-0.10 m), and moderately recalcitrant (0.05-0.10 m) organic phosphorus. The correlation matrix shows interactions between the evaluated soil attributes, especially between inorganic phosphorus fractions and fulvic and humic acids and between the moderately recalcitrant organic phosphorus and humin fraction.