Results 131 to 140 of about 667,306 (306)

The Herfindahl neutral point: A firm‐level threshold for managing market concentration with evidence from US hog packing

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract This paper derives a firm‐level threshold, the Herfindahl Neutral Point, from the standard concentration index used in merger review. At this threshold, a marginal expansion leaves the index unchanged. Firms below the threshold reduce concentration when they expand; firms above it increase concentration.
Andrew J. Keller, Krishna P. Paudel
wiley   +1 more source

Supplementarity in the European carbon emission market [PDF]

open access: yes
In this paper we investigate emission trading within the EU and, more specifically, some proposals to impose ceilings on emission trading. We compare different proposals put forward by the EU negotiators at the international level in the framework of the
Jan Cornillie, Johan Eyckmans
core  

Genome‐Wide Association Study of Symptom Change Following Cognitive Behavioral Therapy for Common Mental Disorders

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Cognitive behavioral therapy (CBT) is a well‐established, evidence‐based treatment for common mental disorders such as depression, anxiety disorders, and obsessive‐compulsive disorder (OCD). However, treatment outcomes vary widely, and a substantial proportion of patients do not achieve sufficient improvement.
Julia Bäckman   +41 more
wiley   +1 more source

Electrical Impedance Myography Detects Disease Progression over 12 to 24 Months in Facioscapulohumeral Muscular Dystrophy

open access: yesAnnals of Neurology, EarlyView.
Objective Targeted therapies for facioscapulohumeral muscular dystrophy (FSHD) are progressing through clinical trials. Electrical impedance myography (EIM) provides a noninvasive biomarker of muscle composition that may be valuable especially in early phase trials. This study evaluated EIM data from a multicenter FSHD cohort over 24 months.
Karlien Mul   +15 more
wiley   +1 more source

The Vector Floor and Ceiling Model [PDF]

open access: yes
This paper motivates and develops a nonlinear extension of the Vector Autoregressive model which we call the Vector Floor and Ceiling model. Bayesian and classical methods for estimation and testing are developed and compared in the context of an ...
Gary Koop, Simon Potter
core  

Temporal Modeling of Amyloid and Tau Trajectories in Alzheimer's Disease Using PET and Plasma Biomarkers

open access: yesAnnals of Neurology, EarlyView.
Objective This study aimed to compare positron emission tomography (PET) and plasma‐based temporal modeling of amyloid and tau biomarkers in Alzheimer's disease. Methods Longitudinal amyloid PET (n = 1,097, mean age ± SD = 72.5 ± 7.38 year, 51.4% male), 18F‐flortaucipir tau‐PET (n = 230, 74.3 ± 7.18 year, 52.2% female), and Fujirebio Lumipulse plasma p‐
Christopher A. Brown   +14 more
wiley   +1 more source

Household Leverage and the Deductibility of Home Mortgage Interest: Evidence from UK House Purchasers [PDF]

open access: yes
During the last quarter century, mortgage interest deductibility has been gradually phased out. In 1974 a ceiling was set on the size of the mortgage eligible for interest deductibility (œ30,000 since 1983) and, beginning in 1993, the maximum rate at ...
Dr. Gwilyn Pryce   +2 more
core  

Longitudinal Phenotypic Trajectories in GNAO1‐Related Disorders: Defining Disease Progression and Clinical Profiles

open access: yesAnnals of Neurology, EarlyView.
Objective Pathogenic variants in GNAO1 cause a spectrum of epilepsy, movement disorders, and developmental impairment. Clinical heterogeneity complicates prognosis and therapeutic development. We present the first longitudinal natural history study of GNAO1‐related disorders (GNAO1‐RD) to delineate phenotypic trajectories. Methods Sixty‐six individuals
Jana Domínguez‐Carral   +52 more
wiley   +1 more source

The Color Ceiling: African Americans Still Fighting for Equity and Equality

open access: yesJournal of Human Services: Training, Research, and Practice, 2017
There currently exists a unique ceiling-effect that has plagued the African American community for a number of years but due to the group being placed under the Glass Ceiling umbrella, the true nature of their issues have been vastly overlooked. To bring
Osaro Airen Ph.D, LPC, NCC
doaj  

Alzheimer's Disease Co‐Pathology and Cognitive Impairment in Amyotrophic Lateral Sclerosis

open access: yesAnnals of Neurology, EarlyView.
Objectives Amyotrophic lateral sclerosis (ALS) and Alzheimer's disease (AD) share neuropathological features, including tau, amyloid, and TDP‐43 pathology. This study investigated whether AD‐related pathological changes are associated with cognitive impairment ALS. Methods Cerebrospinal fluid (CSF total‐tau, phosphorylated‐tau, beta‐amyloid) and plasma
Elisabeth Kasper   +29 more
wiley   +1 more source

Home - About - Disclaimer - Privacy