VOLUME 294 (2019) PAGES 2555–2568Due to publisher error, “150 l/mm” was changed to “150 liters/mm” in the second paragraph of the “Vibrational spectroscopy of samples” section under “Experimental Procedures.” The correct phrase should be “150 l/mm.”

Invitation Only Research Event

Event participants

Sergei Medvedev, Professor, Faculty of Social Sciences, Higher School of Economics (Moscow)

LGBT India Tours offers best and full assurance services to the gay, lesbian and LGBT clients at affordable rates for reveling holidays and tourism packages to various destinations in India.

HYDERABAD, India (AP) — A gas leak at a chemical factory owned by a South Korean company in southern India early Thursday left at least 11 people dead and about 1,000 struggling to breathe. The chemical styrene, used to make plastic and...

Recent years have seen political and social progress for people who identify as LGBT+ (lesbian, gay, bisexual, and transgender; the “+” indicating inclusion of other minority sexual and gender identities). Yet international evidence shows ongoing health and social inequalities in this group, many of which emerge during adolescence and represent...

A new podcast from The BMJ, to help GP's feel more connected, heard, and supported. Subscribe on; Apple podcasts - https://bit.ly/applepodsDBI Spotify - https://bit.ly/spotifyDBI Google podcasts - https://bit.ly/googlepodsDBI In our first episode, we discuss the highs and lows of video consultations, and how coronavirus has altered the landscape...

Samar I. Itani
Jul 1, 2002; 51:2005-2011
Rapid Publications

Kathleen Melhuish & Kristen Lew Texas State University “[Functions] are completely different, which is what makes this course so challenging.” – Abstract Algebra Student Functions are hard for students, even students in abstract algebra courses. Even if students have seen … Continue reading →

Francesco Rubino
Jun 1, 2016; 39:861-877
Metabolic Surgery and the Changing Landscape for Diabetes Care

Francesco Rubino
Jun 1, 2016; 39:861-877
Metabolic Surgery and the Changing Landscape for Diabetes Care

On her first official trip to Washington, DC, Secretary of the Interior Olga Sánchez Cordero offered a public address on Mexico’s new approach to migration policy at MPI. Her remarks and the event discussion were mostly conducted in Spanish, and this recording is of the simultaneous English interpretation. 

Durante su primera visita oficial a Washington, DC, la Secretaria de Gobierno Olga Sánchez Cordero presento un discurso público sobre la nueva política migratoria de México en el Instituto de Políticas Migratorias.

The deadline for dental offices to install amalgam separators remains intact but the Environmental Protection Agency announced March 26 that it will be initiating “a new temporary enforcement discretion policy” during the COVID-19 pandemic.

A new scientific study published Monday found that global warming is fueling a destructive algal bloom that is disrupting fisheries in the Arabian sea.

OBJECTIVE

Patients with diabetes mellitus (DM) have elevated levels of high-sensitivity cardiac troponin (hs-cTn). We investigated the diagnostic performance of the European Society of Cardiology (ESC) algorithms to rule out or rule in acute myocardial infarction (AMI) without ST-elevation in patients with DM.

We all understand that digital media, data, and analytics are driving transformations in society and business. Most marketers are now armed with case studies of what can be done differently, but many are still challenged with how to truly develop new ideas and execute new strategies to grow their business. Mitch Joel, President of Mirum […]

The proposed legislation would require the 1.1-million student district to publish the source code behind algorithms used to assign students to high schools, evaluate teachers, and more.

Internet -- Social aspects.

Self-actualization (Psychology) in old age.

Wien : Urban & Schwarzenberg, 1890.

Berlin : G. Reimer, 1893.

Berlin : G. Reimer, 1863.

Berlin : G. Reimer, 1876.

Wiesbaden : Bergmann, 1905.

Stuttgart : F. Enke, 1883.

Berlin : G. Reimer, 1879.

Berlin : Köllner, 1899.

Jena : G. Fischer, 1896.

Leipzig : G. Thieme, 1892.

Berlin : A. Hirschwald, 1900.

Leipzig : S. Hirzel, 1881.

Cassel : T. Fischer, 1878.

Leipzig : F. Deuticke, 1908.

Berlin : Gose & Tetzlaff, 1904.

Berlin : J. Springer, 1899.

Stuttgart : Enke, 1905.

London : Boericke & Tafel, 1881.

Hannover : Hahn, 1873.

Bruxelles : A. Manceaux, 1893.

Leipzig : S. Hirzel, 1899.

London : Philadelphia, 1890.

Berlin : Hirschwald, 1886.

As lawmakers weigh expansion of the state’s voucher and tax-credit scholarship programs, some renew a push for anti-discrimination protection for lesbian, gay, bisexual, transgender, and queer students.

The Washington Capitals decided to part ways with forward Brendan Leipsic on Friday after he made vulgar and disparaging comments on an social media chat group. The 25-year old Canadian was placed on waivers by the NHL club after his Instagram group chat messages were leaked earlier this week. The chat included inappropriate remarks about Edmonton Oilers forward Connor McDavid's girlfriend and the wife of Vancouver Canucks player Tanner Pearson.

Rockville, Maryland : National Institute on Drug Abuse, 1983.

Ruofei Zhao, Yuanzhi Li, Yuekai Sun.

Source: Electronic Journal of Statistics, Volume 14, Number 1, 632--660.

Abstract:
We study the convergence behavior of the Expectation Maximization (EM) algorithm on Gaussian mixture models with an arbitrary number of mixture components and mixing weights. We show that as long as the means of the components are separated by at least $Omega (sqrt{min {M,d}})$, where $M$ is the number of components and $d$ is the dimension, the EM algorithm converges locally to the global optimum of the log-likelihood. Further, we show that the convergence rate is linear and characterize the size of the basin of attraction to the global optimum.

Arvind Prasadan, Raj Rao Nadakuditi, Debashis Paul.

Source: Electronic Journal of Statistics, Volume 14, Number 1, 345--385.

Abstract:
Singular value decomposition (SVD) based principal component analysis (PCA) breaks down in the high-dimensional and limited sample size regime below a certain critical eigen-SNR that depends on the dimensionality of the system and the number of samples. Below this critical eigen-SNR, the estimates returned by the SVD are asymptotically uncorrelated with the latent principal components. We consider a setting where the left singular vector of the underlying rank one signal matrix is assumed to be sparse and the right singular vector is assumed to be equisigned, that is, having either only nonnegative or only nonpositive entries. We consider six different algorithms for estimating the sparse principal component based on different statistical criteria and prove that by exploiting sparsity, we recover consistent estimates in the low eigen-SNR regime where the SVD fails. Our analysis reveals conditions under which a coordinate selection scheme based on a sum-type decision statistic outperforms schemes that utilize the $ell _{1}$ and $ell _{2}$ norm-based statistics. We derive lower bounds on the size of detectable coordinates of the principal left singular vector and utilize these lower bounds to derive lower bounds on the worst-case risk. Finally, we verify our findings with numerical simulations and a illustrate the performance with a video data where the interest is in identifying objects.

Guanyang Wang.

Source: Electronic Journal of Statistics, Volume 14, Number 1, 1690--1706.

Abstract:
Uniform sampling of binary matrix with fixed margins is an important and difficult problem in statistics, computer science, ecology and so on. The well-known swap algorithm would be inefficient when the size of the matrix becomes large or when the matrix is too sparse/dense. Here we propose the Rectangle Loop algorithm, a Markov chain Monte Carlo algorithm to sample binary matrices with fixed margins uniformly. Theoretically the Rectangle Loop algorithm is better than the swap algorithm in Peskun’s order. Empirically studies also demonstrates the Rectangle Loop algorithm is remarkablely more efficient than the swap algorithm.