Perangkat Pembelajaran Matematika Konstruktivis Berbasis Nilai-nilai Karakter 1 Konservasi Berbantuan E-learning

Peningkatkan penguasaan konsep dan memperbaiki sikap belajar mahasiswa dengan menerapkan pembelajaran konstruktivis berbasis nilai-nilai karakter konservasi berbantuan E-learningi adalah fokus dalam penelitian ini, sebab pembelajaran E-learning dapat menyentuh aspek aktivitas dan kreativitas mahasiswa. Pengembangan yang dipilih adalah pengembangan dengan model 4D yang diadaptasi menjadi 4P, yaitu pendefinisian (analisis awal-akhir, analisis peserta didik, analisis materi, analisis tugas, dan merumuskan tujuan pembelajaran khusus), perancangan (penyusunan kriteria tes, pemilihan media, pemilihan format, dan desain awal), pengembangan (validasi ahli dan uji coba), dan penyebaran. Adapun perangkat yang dikembangkan adalah Rencana Pembelajaran Semester (RPS) dan Rancangan Tatap Muka (RTM), yang dilengkapi dengan Lembar Diskusi dan E-learning. Adapun rata-rata prestasi belajar kelas eksperimen adalah 89,38 yang melebihi batas minimal nilai B, sehingga ratarata prestasi belajar kelas eksperimen lebih baik dari kelas kontrol yang rata-rata prestasi belajarnya adalah 80,50. Sehingga dapat disimpulkan pembelajaran efektif

An overview on leveraging social media technology for uncovering tacit knowledge sharing in an organizational context

Over the years, businesses have transformed from the traditional manufacturing-oriented to service-oriented. Along with this, tacit knowledge has become more crucial as organizations move toward innovation and service orientation. In summary, the knowledge of an organization's workforce is tacit knowledge related to their belief and expertise, which can be difficult to define, given its inexpressible characteristics. The practice of knowledge management is often associated with the use of information systems and the effort to codify, share and create knowledge using relevant knowledge management systems. Although social media is widely adopted by organizations to enhance the effectiveness of knowledge sharing practices, there is still a large amount of uncertainty on whether information systems act as an environment for the sharing of tacit knowledge. The purpose of this study is to understand the significant role of social media in offering tacit knowledge. Wiki, because of its collaborative and conversational bases, was chosen as an example of a social media and the methodology undertaken in this study is literature review. This study contributes to a discussion on the increasingly important role of social media in the dissemination of tacit knowledge in an organizational context

Second Generation Leptoquark Search in p\bar{p} Collisions at s\sqrt{s} = 1.8 TeV

We report on a search for second generation leptoquarks with the D\O\ detector at the Fermilab Tevatron $p\bar{p}$ collider at $\sqrt{s}$ = 1.8 TeV. This search is based on 12.7 pb$^{-1}$ of data. Second generation leptoquarks are assumed to be produced in pairs and to decay into a muon and quark with branching ratio $\beta$ or to neutrino and quark with branching ratio $(1-\beta)$. We obtain cross section times branching ratio limits as a function of leptoquark mass and set a lower limit on the leptoquark mass of 111 GeV/c$^{2}$ for $\beta = 1$ and 89 GeV/c$^{2}$ for $\beta = 0.5$ at the 95%\ confidence level.Comment: 18 pages, FERMILAB-PUB-95/185-

Measurement of the WW Boson Mass

A measurement of the mass of the $W$ boson is presented based on a sample of 5982 $W \rightarrow e \nu$ decays observed in $p\overline{p}$ collisions at $\sqrt{s}$ = 1.8~TeV with the D\O\ detector during the 1992--1993 run. From a fit to the transverse mass spectrum, combined with measurements of the $Z$ boson mass, the $W$ boson mass is measured to be $M_W = 80.350 \pm 0.140 (stat.) \pm 0.165 (syst.) \pm 0.160 (scale) GeV/c^2$.Comment: 12 pages, LaTex, style Revtex, including 3 postscript figures (submitted to PRL

Search for Top Squark Pair Production in the Dielectron Channel

This report describes the first search for top squark pair production in the channel stop_1 stopbar_1 -> b bbar chargino_1 chargino_1 -> ee+jets+MEt using 74.9 +- 8.9 pb^-1 of data collected using the D0 detector. A 95% confidence level upper limit on sigma*B is presented. The limit is above the theoretical expectation for sigma*B for this process, but does show the sensitivity of the current D0 data set to a particular topology for new physics.Comment: Five pages, including three figures, submitted to PRD Brief Report

Jet Production via Strongly-Interacting Color-Singlet Exchange in ppˉp\bar{p} Collisions

A study of the particle multiplicity between jets with large rapidity separation has been performed using the D{\O}detector at the Fermilab Tevatron $p\bar{p}$ Collider operating at $\sqrt{s}=1.8$ TeV. A significant excess of low-multiplicity events is observed above the expectation for color-exchange processes. The measured fractional excess is $1.07 \pm 0.10({\rm stat})^{+ 0.25}_{- 0.13}({\rm syst})$, which is consistent with a strongly-interacting color-singlet (colorless) exchange process and cannot be explained by electroweak exchange alone. A lower limit of 0.80% (95% C.L.) is obtained on the fraction of dijet events with color-singlet exchange, independent of the rapidity gap survival probability.Comment: 15 pages (REVTeX), 3 PS figs (uuencoded/tar compressed, epsf.sty) Complete postscript available at http://d0sgi0.fnal.gov/d0pubs/journals.html Submitted to Physical Review Letter

Measurement of Dijet Angular Distributions and Search for Quark Compositeness

We have measured the dijet angular distribution in $\sqrt{s}$=1.8 TeV $p\bar{p}$ collisions using the D0 detector. Order $\alpha^{3}_{s}$ QCD predictions are in good agreement with the data. At 95% confidence the data exclude models of quark compositeness in which the contact interaction scale is below 2 TeV.Comment: 11 pages, Latex, 3 postscript figure

Long-term subjective cognitive functioning following adjuvant systemic treatment:7-9 years follow-up of a nationwide cohort of women treated for primary breast cancer

BACKGROUND: There is growing concern among breast cancer (BC) patients and survivors about cognitive impairment following systemic treatments. The aim of the present study was to investigate the long-term effects of standard systemic adjuvant therapies on subjective cognitive impairment (SCI) in a large nationwide cohort of BC survivors 7–9 years after primary surgery. METHODS: Participants were recruited from the nationwide Psychosocial Factors and Breast Cancer inception cohort of Danish women treated for primary BC. SCI was assessed with the Cognitive Failures Questionnaire and women allocated to systemic treatment according to nationwide standard protocols were compared with women who had not received any systemic treatments. RESULTS: A total of 1889 recurrence-free survivors were eligible for analysis. No difference in SCI was found between survivors across standardized systemic treatment protocols when analyses were stratified by menopausal status and adjusted for possible sociodemographic and treatment-related confounders. The frequency of significant SCI in a subgroup of survivors in the age range 65–74 years was ∼7%. CONCLUSIONS: No differences in long-term SCI at 7–9 years post surgery were found between women who had received systemic therapies and those who had not. Furthermore, the observed proportion of survivors with significant SCI was comparable to normative data. These results are important to communicate to patients, survivors, and clinicians alike, especially in the light of increasing concern about cognitive impairment following systemic therapies