106 research outputs found
The Impact of the Investors in People Standard on People Management Practices and Firm Performance
No full textThis document reports on an extensive study into the impact of the Investors in
People Standard on business performance. We started by reviewing what is already
known about the Standard’s impact on business performance, before building a
framework of the expected benefits of IIP from the Strategic Human Resource
Management literature. This framework was tested using case studies, a survey
and financial analysis to create a body of knowledge that improves our
understanding of how the Investors in People Standard improves business
performan
Students Mistakes to Solve Higher Order Thinking based Problems in The Quadrilateral Topic
No full textThe aim of this study was to analyze students' mistakes in solve higher order thinking skill (HOTS) questions in the quadrilateral topic. The research method was descriptive qualitative. The research subject was three 7th grade students in one of junior high schools in suburbs of Jakarta. The sampling technique was test and interview. The result showed that students were unfamiliar with HOTS questions. The mistakes that was identified were intuitive mistake, algorithm-based mistake, and formal knowledge-based mistake. It was marked by errors in choosing an operation, not paying attention in unit when performing calculations and misconception for the formula
Intermediate-luminosity Type IIP SN 2021gmj : a low-energy explosion with signatures of circumstellar material
No full textPublisher Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.We present photometric, spectroscopic, and polarimetric observations of the intermediate-luminosity Type IIP supernova (SN) 2021gmj from 1 to 386 d after the explosion. The peak absolute V-band magnitude of SN 2021gmj is −15.5 mag, which is fainter than that of normal Type IIP SNe. The spectral evolution of SN 2021gmj resembles that of other sub-luminous SNe: The optical spectra show narrow P-Cygni profiles, indicating a low expansion velocity. We estimate the progenitor mass to be about 12 M⊙ from the nebular spectrum and the 56Ni mass to be about 0.02 M⊙ from the bolometric light curve. We also derive the explosion energy to be about 3 × 1050 erg by comparing numerical light-curve models with the observed light curves. Polarization in the plateau phase is not very large, suggesting nearly spherical outer envelope. The early photometric observations capture the rapid rise of the light curve, which is likely due to the interaction with a circumstellar material (CSM). The broad emission feature formed by highly ionized lines on top of a blue continuum in the earliest spectrum gives further indication of the CSM at the vicinity of the progenitor. Our work suggests that a relatively low-mass progenitor of an intermediate-luminosity Type IIP SN can also experience an enhanced mass-loss just before the explosion, as suggested for normal Type IIP SNe.Peer reviewe
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Early-time Ultraviolet Spectroscopy and Optical Follow-up Observations of the Type IIP Supernova 2021yja
No full textWe present three epochs of early-time ultraviolet (UV) and optical HST/STIS spectroscopy of the young, nearby Type IIP supernova (SN) 2021yja. We complement the HST data with two earlier epochs of Swift UVOT spectroscopy. The HST and Swift UVOT spectra are consistent with those of other well-studied Type IIP SNe. The UV spectra exhibit rapid cooling at early times, while less dramatic changes are seen in the optical. We also present Lick/KAIT optical photometry up to the late-time tail phase, showing a very long plateau and shallow decline compared with other SNe IIP. Our modeling of the UV spectrum with the TARDIS radiative transfer code produces a good fit for a high-velocity explosion, a low total extinction E(B − V) = 0.07 mag, and a subsolar metallicity. We do not find a significant contribution to the UV flux from an additional heating source, such as interaction with the circumstellar medium, consistent with the observed flat plateau. Furthermore, the velocity width of the Mg ii λ2798 line is comparable to that of the hydrogen Balmer lines, suggesting that the UV emission is confined to a region close to the photosphere. © 2022. The Author(s). Published by the American Astronomical Society.Open access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]
Penerapan Model Pembelajaran Kooperatif Tipe Think Pair Share (TPS) Dan Model Pembelajaran Kooperatif Tipe Student Team Achievement Division (STAD) Terhadap Hasil Belajar Matematika Siswa Pada Materi Garis Singgung Lingkaran
No full textThis research is to prove whether the learning result of Student Mathematics with cooperative learning model of TPS type is better than the result of student learning of Mathematics with STAD type cooperative learning model on tangent material of circle. The population is the students of State Junior High School 1 East Cikarang. The sample was taken by using cluster random sampling technique from the population by randomized method, ie students of class VIII F and class VIII G as many as 60 students. The analysis test is done by normality test and homogeneity test. Normality test using Lilliefors test and Homogeneity test using Fisher test. While the hypothesis test using t-test. Based on the calculation obtained data that Lilliefors model of cooperative learning model type TPS Lhitung = 0.0954 and for Ltabel = 0.161 (0.0954 ttable then H0 is rejected. The conclusion of this research is there are difference of mathematics learning result of students using cooperative learning model of TPS type and mathematics learning result of students using STAD type cooperative learning model in tangent circle material in class VIII SMPN 1 Cikarang East Bekasi
Estimating sea lice infestation pressure on salmon farms: Comparing different methods using multivariate state-space models
No full textSea lice are ectoparasites of salmonids, and are considered to be one of the main threats to Atlantic salmonfarming. Sea lice infestation on a farm is usually initiated by attachment of the free-living copepodid stagederived from the surrounding water, frequently originating from adult lice on the same farm or from neighboringsalmonid farms, referred to as internal and external sources, respectively. Various approaches have been pro-posed to quantify sea lice infestation pressure on farms to improve the management of this pest. Here, we reviewand comparefive of these methods based on sea lice data from 20 farms located near Grand Manan island in theBay of Fundy, New Brunswick, Canada.Internal and external infestation pressures (IIP and EIP, respectively) were estimated using different ap-proaches, and their effects were modeled either by a unique parameter for all production cycles or by differentparameters for each production cycle, using a multivariate state-space model. Predictive variables, such as watertemperature and sea lice treatments, were included in the model, and their effects across production cycles wereestimated along with those of other model parameters. Results showed that models with only EIP explained thevariation in the data better than models with only IIP, and that models with unique IIP and unique EIP for allcycles were generally associated with the best modelfit. The simplest,fixed lag method for calculating in-festation pressure had the best predictive performance in our models among the methods studied.Canada First Research Excellence Fun
Measuring Coverage in MNCH:A Validation Study Linking Population Survey Derived Coverage to Maternal, Newborn, and Child Health Care Records in Rural China
No full textBackground: Accurate data on coverage of key maternal, newborn, and child health (MNCH) interventions are crucial for monitoring progress toward the Millennium Development Goals 4 and 5. Coverage estimates are primarily obtained from routine population surveys through self-reporting, the validity of which is not well understood. We aimed to examine the validity of the coverage of selected MNCH interventions in Gongcheng County, China. Method and Findings: We conducted a validation study by comparing women's self-reported coverage of MNCH interventions relating to antenatal and postnatal care, mode of delivery, and child vaccinations in a community survey with their paper- and electronic-based health care records, treating the health care records as the reference standard. Of 936 women recruited, 914 (97.6%) completed the survey. Results show that self-reported coverage of these interventions had moderate to high sensitivity (0.57 [95% confidence interval (CI): 0.50-0.63] to 0.99 [95% CI: 0.98-1.00]) and low to high specificity (0 to 0.83 [95% CI: 0.80-0.86]). Despite varying overall validity, with the area under the receiver operating characteristic curve (AUC) ranging between 0.49 [95% CI: 0.39-0.57] and 0.90 [95% CI: 0.88-0.92], bias in the coverage estimates at the population level was small to moderate, with the test to actual positive (TAP) ratio ranging between 0.8 and 1.5 for 24 of the 28 indicators examined. Our ability to accurately estimate validity was affected by several caveats associated with the reference standard. Caution should be exercised when generalizing the results to other settings. Conclusions: The overall validity of self-reported coverage was moderate across selected MNCH indicators. However, at the population level, self-reported coverage appears to have small to moderate degree of bias. Accuracy of the coverage was particularly high for indicators with high recorded coverage or low recorded coverage but high specificity. The study provides insights into the accuracy of self-reports based on a population survey in low- and middle-income countries. Similar studies applying an improved reference standard are warranted in the future.</p
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Enormous explosion energy of Type IIP SN 2017gmr with bipolar 56Ni ejecta
No full textThe unusual Type IIP SN 2017gmr is revisited in order to pinpoint the origin of its anomalous features, including the peculiar light curve after about 100 d. The hydrodynamic modelling suggests the enormous explosion energy of ≈1052 erg. We find that the light curve with the prolonged plateau/tail transition can be reproduced either in the model with a high hydrogen abundance in the inner ejecta and a large amount of radioactive 56Ni, or in the model with an additional central energy source associated with the fallback/magnetar interaction in the propeller regime. The asymmetry of the late H α emission and the reported linear polarization are reproduced by the model of the bipolar 56Ni ejecta. The similar bipolar structure of the oxygen distribution is responsible for the two-horn structure of the [O i] 6360, 6364 Å emission. The bipolar 56Ni structure along with the high explosion energy are indicative of the magneto-rotational explosion. We identify narrow high-velocity absorption features in H α and He i10 830 Å lines with their origin in the fragmented cold dense shell formed due to the outer ejecta deceleration in a confined circumstellar shell. © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.Immediate accessThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]
Man in his native noblesse? : chivalry and the politics of the nobility in the tragedies of George Chapman
No full textIn this thesis I argue that the three plays under consideration - Bussy
D'Anbois, The Conspiracy and Tragedy of Charles Duke of Byron, and The
Revenge of Bussy D'Ambois - illustrate Chapman's concern with the role of
chivalry in England following the debacle of the Essex Rebel lion in 1601.
My contention is that, for Chapman, the Essex Rebellion exposed the
fragility and the inconsistencies of Elizabethan chivalry and the political
threat represented by its preoccupation with martial values.
I suggest that in his plays, Chapman sets out to deconstruct the myth
of chivalry by exposing it as a romantic concept which is used by the
martial nobility as a means of Emphasizing their political rights. The
values of chivalry - prowess, honour, loyalty, generosity, courtesy and
independence - are shown, by the plays, to be incompatible with the
political ambitions of the nobility. By associating themselves with this
mythical concept of chivalry, political figures cane to identify their
factions with the values of chivalry. Chapman, I argue, shows haw the myth
is established and then exposes it for what it is, by portraying his
characters as unable to live up to their expected mythical ideals.
Chivalry is stripped of its mythical trappings and exposed as militaristic,
aggressive and politically motivated.
The thesis is divided into five chapters. In the first, I consider
Chapman alongside the Tacitean historians who were connected with the Essex
circle in the 1590s and show how, in The Conspiracy and Tragedy of Charles
Duke of Byron, the dramatist transformed the providentialist narrative of
his source into a play with Tacitean connotations, emphasizing the
relationship between chivalry and constitutional political theory. In the
second chapter I consider Chapman's interest in chivalry and discuss
generally the romantic concept of Elizabethan chivalry and its relationship
with the political concerns of the nobility. In Chapters Three to Five I
discuss Chapman's portrayal of chivalry and its political impliications
Connecting Theory and Practice in LIS: The Training Model of the Information Resource Centers
No full textThe traditional LIS education is also essential as it provides the foundation for our profession. Also, the LIS theory explores the history and evolution of the librarianship in different era. The library science educators do review the LIS courses from time to time, because it isn’t one time job. As the nature of information sources changes, the sophistication of information technology advances, and the quantity of knowledge explodes; the job market of librarians itself demands revision and expansion in the curricula of the LIS.
Even if the curriculum of an LIS school is up to the mark, the institution is required to train its new information professionals. Every type of library (i.e. public, academic, or special etc.) has to impart a proper training to its employees for better performance and productivity.
At the same time, it is true that not all the libraries or their parent institutions can afford the expensive and sophisticated training model of the IRCs. However, if they put the professional training on priority and spend some resources and time on it, they can get best out of their employees. One way is to arrange the in-house training sessions at their libraries. Moreover, the libraries of the same kind or in the same region can coordinate training on different LIS modules. The Internet is itself a good learning, teaching and training tool. The information professional can improve the professional skills through reading the professional literature, becoming a member of professional association, and consulting the value added professional websites
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