14 research outputs found
Social accounting practices among Kenyan firms: An empirical study of companies quoted at Nairobi Securities Exchange
ABSTRACT Profit and shareholders wealth maximization have for long dictated accounting and reporting practices, the concern for the social costs and the benefits of the business practices have given rise to the need for environmental and social accounting. The Significance of the study was to determine how companies are reporting positive and negative externalities to the society. The main objectives of the study was to establish the most popular themes of social accounting in Kenya, determine how and location for disclosure of social accounting information. The population of the study was fifty seven companies quoted in NSE and longitudinal study was carried from 2008-2010. Census method was used to collect data. Secondary data was collected from published annual financial statement of all listed companies. The population of companies is categorized into four market segment, Content analysis and descriptive analysis was used in analyzing data. It was established in the year 2008, companies practicing social accounting were 72%, while 2009 were 75% and in 2010 were 81%. It was also established that community involvement and environment themes was leading in practice of social accounting. Finally, it was established that companies prefer non-monetary form over monetary form of presentation and also they prefer using separate location to using chairman's report in annual reports
Measurement of the Forward-Backward Asymmetry in the B -> K(*) mu+ mu- Decay and First Observation of the Bs -> phi mu+ mu- Decay
We reconstruct the rare decays , , and in a data sample
corresponding to collected in collisions at
by the CDF II detector at the Fermilab Tevatron
Collider. Using and decays we report the branching ratios. In addition, we report
the measurement of the differential branching ratio and the muon
forward-backward asymmetry in the and decay modes, and the
longitudinal polarization in the decay mode with respect to the squared
dimuon mass. These are consistent with the theoretical prediction from the
standard model, and most recent determinations from other experiments and of
comparable accuracy. We also report the first observation of the {\mathcal{B}}(B^0_s \to
\phi\mu^+\mu^-) = [1.44 \pm 0.33 \pm 0.46] \times 10^{-6}27 \pm 6B^0_s$ decay observed.Comment: 7 pages, 2 figures, 3 tables. Submitted to Phys. Rev. Let
Search for a New Heavy Gauge Boson Wprime with Electron + missing ET Event Signature in ppbar collisions at sqrt(s)=1.96 TeV
We present a search for a new heavy charged vector boson decaying
to an electron-neutrino pair in collisions at a center-of-mass
energy of 1.96\unit{TeV}. The data were collected with the CDF II detector
and correspond to an integrated luminosity of 5.3\unit{fb}^{-1}. No
significant excess above the standard model expectation is observed and we set
upper limits on . Assuming standard
model couplings to fermions and the neutrino from the boson decay to
be light, we exclude a boson with mass less than
1.12\unit{TeV/}c^2 at the 95\unit{%} confidence level.Comment: 7 pages, 2 figures Submitted to PR
Measurements of the properties of Lambda_c(2595), Lambda_c(2625), Sigma_c(2455), and Sigma_c(2520) baryons
We report measurements of the resonance properties of Lambda_c(2595)+ and
Lambda_c(2625)+ baryons in their decays to Lambda_c+ pi+ pi- as well as
Sigma_c(2455)++,0 and Sigma_c(2520)++,0 baryons in their decays to Lambda_c+
pi+/- final states. These measurements are performed using data corresponding
to 5.2/fb of integrated luminosity from ppbar collisions at sqrt(s) = 1.96 TeV,
collected with the CDF II detector at the Fermilab Tevatron. Exploiting the
largest available charmed baryon sample, we measure masses and decay widths
with uncertainties comparable to the world averages for Sigma_c states, and
significantly smaller uncertainties than the world averages for excited
Lambda_c+ states.Comment: added one reference and one table, changed order of figures, 17
pages, 15 figure
Search for heavy bottom-like quarks decaying to an electron or muon and jets in collisions at TeV
We report the most sensitive direct search for pair production of
fourth-generation bottom-like chiral quarks () each decaying promptly to
. We search for an excess of events with an electron or muon, at least five
jets (one indentified as due to a or quark) and an imbalance of
transverse momentum using data from collisions collected by the CDF
II detector at Fermilab with an integrated luminosity of 4.8 fb. We
observe events consistent with background expectation and calculate upper
limits on the pair production cross section ( fb for 375 GeV/) and exclude \gevcc at 95%
confidence level.Comment: For submission to PR
Oxygen Saturation in the Triceps Brachii Muscle during an Arm Wingate Test: The Role of Training and Power Output
Observation of B(s)(0) -> J/psi K*(892)(0) and B(s)(0) -> J/psi K(S)(0) decays RID G-1087-2011 RID E-4473-2011
We report the first observation of two Cabibbo-suppressed decay modes of the B(s)(0) meson. Using a sample of p (p) over bar collisions at root s = 1.96 TeV corresponding to 5: 9 fb(-1) of integrated luminosity collected with the CDF II, the collider detector at the Fermilab Tevatron, we search for new B(s)(0) decay modes in a sample of events containing J/psi -> mu(+)mu(-) decays. We reconstruct a B(s)(0) -> J/psi K*(892)(0) 0 signal with K*(892)(0) -> K(+) pi(-), observing a yield of 151 +/- 25 events with a statistical significance of 8.0 sigma. We also reconstruct a B(s)(0) -> J/psi K(s)(0) signal with K(s)(0) -> pi(+)pi(-) , observing a yield of 64 +/- 14 events with a statistical significance of 7.2 sigma. From these yields, we extract the branching ratios B(B(s)(0) -> J/psi K* (892)(0) = (8.3 +/- 3.8) X 10(-5) and B(B(s)(0) -> J/psi K(0)) = (3.5 +/- 0.8) X 10(-5), where statistical, systematic, and fragmentation-fraction uncertainties are included in the combined uncertainty
Measurement of tt̅ spin correlation in pp̅ collisions using the CDF II detector at the Tevatron
The tt̅ spin correlation at production is a fundamental prediction of QCD and a potentially incisive test of new physics coupled to top quarks. We measure the tt̅ spin state in pp̅ collisions at √s=1.96 [square root of s=1.96] TeV using 1001 candidate events in the lepton plus jets decay channel reconstructed in the CDF II detector. In the helicity basis, for a top-quark mass of 172.5 GeV/c2 GeV/c superscript 2], we find a spin correlation coefficient κ=0.60±0.50 (stat)±0.16 (syst), consistent with the QCD prediction, κ≈0.40.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio