Results 151 to 160 of about 927,814 (352)

When Does Alzheimer's Disease Start? Plasma Aβ42/40 Assays Show Steep Changes at Aβ‐PET Centiloid 15, Mean Age of 66 Years

open access: yesAnnals of Neurology, EarlyView.
Objective Sporadic late‐onset Alzheimer's disease (AD) is characterized by a long pre‐clinical phase where amyloid‐beta (Aβ) and tau begin to accumulate in the brain. The primary objective was to determine the age at which AD starts by finding the average population age when both positron emission tomography (PET) Aβ (Aβ‐PET) and plasma Aβ42/40 become ...
Rodrigo Cánovas   +29 more
wiley   +1 more source

EU cohesion policy and the equity-efficiency trade-off - Adding dynamics to Martin's model [PDF]

open access: yes
As a result of the combination of endogenous growth theory with the approach of the new economic geography (NEG), several models have been developed to explain spatial income inequality and to formulate possible policy strategies taking into account the ...
Dietmar Meyer, Jörg Lackenbauer
core  

Anatomy in Cuvier's Paris: Broadening participation through an international research program for historically minoritized undergraduates

open access: yesAnatomical Sciences Education, EarlyView.
Abstract Most research programs recruit students with high grades, previous lab experience, and strong supervisor recommendations. However, these requirements can bar students from historically marginalized backgrounds from gaining these kinds of valuable experiences, thus contributing to the well documented limited diversity in science, technology ...
Jacqueline Cerda‐Smith   +2 more
wiley   +1 more source

Privatization and the Market for Corporate Control [PDF]

open access: yes
We study the wealth effects of the mergers of privatized firms. Our sample entails 39 privatized firms that subsequently become targets of a takeover and 52 privatized firms that become bidders in mergers.
J. Harold Mulherin   +2 more
core  

An Examination of Racial Bias in Scoring the Autism Diagnostic Observation Schedule (ADOS) Module 3: An Item Response Theory Analysis

open access: yesAutism Research, EarlyView.
ABSTRACT Given the rising prevalence of autism among racial minority children in the United States, but persistent service use disparities, this study examines potential bias in specific items from the autism diagnostic observation schedule (ADOS), a highly regarded autism evaluation.
Yuen Yvonne Yu   +16 more
wiley   +1 more source

Measurement Invariance of the PROMIS Family Relationships Scale Among Autistic and General Population Adolescents

open access: yesAutism Research, EarlyView.
ABSTRACT Social relationships are a key component of quality of life, a high‐priority outcome for autistic people, and family relationships are critical in adolescence. The PROMIS Family Relationships scale has been well validated for use with the general population, but psychometric validation in the autistic population is lacking.
Rachel M. Benecke   +4 more
wiley   +1 more source

Developing country capital structures and emerging stock markets [PDF]

open access: yes
In the developing world financing patterns vary greatly from what we observe in developed countries. In the poorest developing countries firms rely mostly on internal resources and informal credit markets for financing.
Demirguc-Kunt, Asli
core  

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