The 2017 Brown Center Report on American Education: How Well Are American Students Learning?

This Brown Center Report (BCR) on American Education is the sixth and final edition in the third volume and the 16th issue overall. The series began in 2000. As in the past, the report comprises three studies. Also in keeping with tradition, the first section features recent results from state, national, or international assessments; the second section investigates a thematic topic in education, either by collecting new data or by analyzing existing empirical evidence in a novel way; and the third section looks at one or more education policies

The 2016 Brown Center Report on American Education: How Well Are American Students Learning?

The 2016 edition of the Brown Center Report (BCR) is number five in the third volume and the 15th issue overall. The series began in 2000, making this the fifth consecutive presidential election year in which an issue has been published. As is customary, this year's BCR contains three studies. Part one is on the Common Core State Standards (CCSS) and instruction in math and reading. National Assessment of Educational Progress (NAEP) data indicate that nonfiction is receiving greater emphasis in both fourth and eighth grade reading instruction, data and geometry are receding in importance in fourth grade math, and course enrollments in eighth grade math are shifting away from advanced courses toward a single, general math course. The CCSS supports all of these trends. The second section investigates whether tracking in eighth grade is related to Advanced Placement (AP) outcomes in high school. Tracking, the practice of grouping students into different classes based on ability or prior achievement, is a controversial topic. Critics argue that tracking creates or reinforces social inequities. Middle school is when students first experience tracking, typically in mathematics. In eighth grade, the tracking question currently boils down to whether high achieving students who are ready for a formal algebra course will get one -- or whether all students will take the same general math course. Part three examines school leadership from an international perspective. All around the world, school principals are called on to provide instructional leadership. Data from the Trends in International Mathematics and Science Study (TIMSS) are examined to see whether principals' instructional activities are associated with student achievement. No association was found

The 2014 Brown Center Report on American Education: How Well Are American Students Learning?

This year's report represents the third installment of volume three and the 13th issue overall since the publication began in 2000. Three studies are presented. All three revisit a topic that has been investigated in a previous Brown Center Report. The topics warrant attention again because they are back in the public spotlight.Part one summarizes the recent controversy involving the Programme for International Student Assessment (PISA) and its treatment of Shanghai-China. The PISA is a test given to 15-year-olds every three years in math, reading, and science. Sixty-five national and subnational jurisdictions participated in the 2012 PISA. When the scores were released in December 2013, no one was surprised that Shanghai-China scored at the top in all subjects. But what has been overlooked by most observers -- and completely ignored by the authorities running PISA -- is that Shanghai's population of15-year-olds is sifted and shaped in ways that make its scores incomparable to those of any other participant.Part two is on homework, updating a study presented in the 2003 Brown Center Report. That study was conducted at a time when homework was on the covers of several popular magazines. The charge then was that the typical student's homework load was getting out of control. The 2003 study examined the best evidence on students' homework burden and found the charge to be an exaggeration. Now, a little more than a decade later, homework is again under attack.The current study finds little evidence that the homework load has increased for the average student. Those with a heavy burden, two or more hours of homework per night, do indeed exist, but they are a distinct minority.Part three is on the Common Core State Standards (CCSS). Forty-five states have signed on to the Common Core and are busy implementing the standards. How is it going? Admittedly, the Common Core era is only in the early stages -- new tests and accountability systems based on the standards are a couple of years away -- but states have had three or four years under the standards. Sufficient time has elapsed to offer an early progress report

Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

Severe early onset preeclampsia: short and long term clinical, psychosocial and biochemical aspects

Preeclampsia is a pregnancy specific disorder commonly defined as de novo hypertension and proteinuria after 20 weeks gestational age. It occurs in approximately 3-5% of pregnancies and it is still a major cause of both foetal and maternal morbidity and mortality worldwide1. As extensive research has not yet elucidated the aetiology of preeclampsia, there are no rational preventive or therapeutic interventions available. The only rational treatment is delivery, which benefits the mother but is not in the interest of the foetus, if remote from term. Early onset preeclampsia (<32 weeks’ gestational age) occurs in less than 1% of pregnancies. It is, however often associated with maternal morbidity as the risk of progression to severe maternal disease is inversely related with gestational age at onset2. Resulting prematurity is therefore the main cause of neonatal mortality and morbidity in patients with severe preeclampsia3. Although the discussion is ongoing, perinatal survival is suggested to be increased in patients with preterm preeclampsia by expectant, non-interventional management. This temporising treatment option to lengthen pregnancy includes the use of antihypertensive medication to control hypertension, magnesium sulphate to prevent eclampsia and corticosteroids to enhance foetal lung maturity4. With optimal maternal haemodynamic status and reassuring foetal condition this results on average in an extension of 2 weeks. Prolongation of these pregnancies is a great challenge for clinicians to balance between potential maternal risks on one the eve hand and possible foetal benefits on the other. Clinical controversies regarding prolongation of preterm preeclamptic pregnancies still exist – also taking into account that preeclampsia is the leading cause of maternal mortality in the Netherlands5 - a debate which is even more pronounced in very preterm pregnancies with questionable foetal viability6-9. Do maternal risks of prolongation of these very early pregnancies outweigh the chances of neonatal survival? Counselling of women with very early onset preeclampsia not only comprises of knowledge of the outcome of those particular pregnancies, but also knowledge of outcomes of future pregnancies of these women is of major clinical importance. This thesis opens with a review of the literature on identifiable risk factors of preeclampsia

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI

Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

Search for stop and higgsino production using diphoton Higgs boson decays

Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top-quark (stop) and the Higgs boson (higgsino) are accessible. Events are examined in which there are two photons forming a Higgs boson candidate, and at least two b-quark jets. In 19.7 inverse femtobarns of proton-proton collision data at sqrt(s) = 8 TeV, recorded in the CMS experiment, no evidence of a signal is found and lower limits at the 95% confidence level are set, excluding the stop mass below 360 to 410 GeV, depending on the higgsino mass