Results 41 to 50 of about 1,172,827 (294)

Remark on approximation in the calculation of the primordial spectrum generated during inflation [PDF]

open access: yes, 2000
We re-examine approximations in the analytical calculation of the primordial spectrum of cosmological perturbation produced during inflation. Taking two inflation models (chaotic inflation and natural inflation) as examples, we numerically verify the ...
Huang, D. H., Lin, W. B., Zhang, X. M.
core   +2 more sources

Analytical determination of the two-body gravitational interaction potential at the 4th post-Newtonian approximation

open access: yes, 2013
We complete the analytical determination, at the 4th post-Newtonian approximation, of the main radial potential describing the gravitational interaction of two bodies within the effective one-body formalism.
Bini, Donato, Damour, Thibault
core   +1 more source

Communication and Language Profiles of Children Treated for Posterior Fossa Brain Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cognitive and language deficits are frequently reported sequelae of posterior fossa brain tumors (PFBT). Typically, delayed onset impedes prompt assessment and early intervention. This has devastating implications for quality of life.
Zara Sved   +4 more
wiley   +1 more source

Small Electrical Loop Analytical Calculation [PDF]

open access: yesUniversal Journal of Electrical and Electronic Engineering, 2013
The article deals with vector potential calculation of the small electrical loop. The method of integral analytical expression solves the problem in the details. This type of integral is the same as in the theory of antenna. This method is simpler than standard method and it makes some connection between radiation theories of point source at the far ...
René Harťanský   +4 more
openaire   +1 more source

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski   +59 more
wiley   +1 more source

Analytical Calculation of Interior lllumination

open access: yesJOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN, 1926
書光照明の光は何れの場合にも等輝度光源と考へられるから、立體角投射の法則から導いた立體角投射圖をつくれば任意の位置の照度が求められる。立體角投射圖について特殊な場合を考へ、荷太陽の直射についての應用を示した。
openaire   +3 more sources

Stressful Events Reported by Childhood Cancer Survivors and Community Controls From the St. Jude Lifetime (SJLIFE) Cohort: A Mixed Method Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Characterizing stressful events reported by childhood cancer survivors experienced throughout the lifespan may help improve trauma‐informed care relevant to the survivor experience. Methods Participants included 2552 survivors (54% female; 34 years of age) and 469 community controls (62% female; 33 years of age) from the St.
Megan E. Ware   +13 more
wiley   +1 more source

Analytical Calculation of Bremsstrahlung Spectrum for X-ray Tube at 10-50 keV

open access: yesYuanzineng kexue jishu, 2023
X-ray tube can easily produce X-ray, which is widely used in industry, archaeology and medicine. X-ray tubes use the interaction between high-speed electrons and anodic target atoms to generate X-rays, including discrete characteristic X-rays and ...
PENG Bo;HUANG Ning;WANG Peng;HE Ze;YUAN Jingxi
doaj  

Analytic Calculation of Quasi-Normal Modes [PDF]

open access: yes, 2008
We discuss the analytic calculation of quasi-normal modes of various types of perturbations of black holes both in asymptotically flat and anti-de Sitter spaces. We obtain asymptotic expressions and also show how corrections can be calculated perturbatively. We pay special attention to low-frequency modes in anti-de Sitter space because they govern the
openaire   +2 more sources

Analytical boundary-based method for diffraction calculations [PDF]

open access: yesJournal of Optics, 2019
We present a simple method for calculation of diffraction effects in a beam passing an aperture. It follows the well-known approach of Miyamoto and Wolf, but is simpler and does not lead to singularities. It is thus shown that in the near-field region, i.e., at short propagation distances, most results depend on values of the beam's field at the ...
Eitam Luz, Er’el Granot, Boris Malomed
openaire   +2 more sources

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