Results 21 to 30 of about 2,721,344 (402)
The density matrix renormalization group for ab initio quantum chemistry [PDF]
, 2014 During the past 15 years, the density matrix renormalization group (DMRG) has become increasingly important for ab initio quantum chemistry. Its underlying wavefunction ansatz, the matrix product state (MPS), is a low-rank decomposition of the full ...
Van Neck, Dimitri, Wouters, Sebastian
core +2 more sources
Safety Recommendations for Evaluation and Surgery of the Head and Neck During the COVID-19 Pandemic.
JAMA Otolaryngology - Head and Neck Surgery, 2020 Importance The rapidly expanding novel coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2, has challenged the medical community to an unprecedented degree.
B. Givi +13 more
semanticscholar +1 more source
İğsi Hücreli Lipomların Cerrahi Tedavisi Sonrası Klinik Sonuçlar
Düzce Tıp Fakültesi Dergisi, 2021 Aim: Spindle cell lipoma is a rare tumor. Although located subcutaneously, they are localized in the posterior neck, shoulder, and lumbar regions. It can radiologically mimic liposarcoma. It is important to differentiate spindle cell lipoma from atypical
Muhammed Beşir Öztürk +4 more
doaj +1 more source
British medical journal, 2020 Objective To use data from the Global Burden of Disease Study between 1990 and 2017 to report the rates and trends of point prevalence, annual incidence, and years lived with disability for neck pain in the general population of 195 countries.
S. Safiri +16 more
semanticscholar +1 more source
Ist Österreich voll in die DM-Zone integriert? Eine ökonometrische Analyse
Austrian Journal of Statistics, 2016 Seit Anfang der achtziger Jahre betreibt Österreich eine enge Anbindung seiner Währung an die DM, um bei der Inflationsbekämpfung von der Reputation der Deutschen Bundesbank zu profitieren.
Johannes Jaenicke, Reinhard Neck
doaj +1 more source
Game of Thrones: Accommodating Monetary Policies in a Monetary Union
Games, 2018 In this paper, we present an application of the dynamic tracking games framework to a monetary union. We use a small stylized nonlinear three-country macroeconomic model of a monetary union to analyze the interactions between fiscal (governments) and ...
Dmitri Blueschke, Reinhard Neck
doaj +1 more source
The Thouless theorem for matrix product states and subsequent post-density matrix renormalization group methods [PDF]
, 2013 The similarities between Hartree-Fock (HF) theory and the density-matrix renormalization group (DMRG) are explored. Both methods can be formulated as the variational optimization of a wave-function ansatz.
Chan, Garnet Kin-Lic +3 more
core +4 more sources
An unusual location of schwannoma in a 4-year-old child
Medical Journal of Dr. D.Y. Patil Vidyapeeth, 2020 Schwannomas are relatively rare neoplasm and even rarer in the pediatric age group. The nerve sheath tumors originating from the nerves of the neck are extremely rare. We report a 4-year-old girl presenting with a history of an asymptomatic neck swelling
Santosh Kumar Swain, Smrutipragnya Samal
doaj +1 more source
The Spectral Function for Finite Nuclei in the Local Density Approximation [PDF]
, 1994 The spectral function for finite nuclei is computed within the framework of the Local Density Approximation, starting from nuclear matter spectral functions obtained with a realistic nucleon-nucleon interaction. The spectral function is decomposed into a
de Guerra, E. Moya +2 more
core +2 more sources
Projector quantum Monte Carlo with matrix product states [PDF]
, 2014 We marry tensor network states (TNS) and projector quantum Monte Carlo (PMC) to overcome the high computational scaling of TNS and the sign problem of PMC. Using TNS as trial wavefunctions provides a route to systematically improve the sign structure and
Chan, Garnet Kin-Lic +3 more
core +3 more sources