Results 71 to 80 of about 2,250,016 (307)

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Evaluating the Effects of Farm Programs: Results from Propensity Score Matching [PDF]

open access: yes
The paper applies a non-parametric propensity score matching approach to evaluate the effects of two types of farm programs (agri-environment (AE) programs and the less favoured area (LFA) scheme) on input use and farm output of individual farms in ...
Weiss, Christoph R., Pufahl, Andrea
core  

How to Control for Many Covariates? Reliable Estimators Based on the Propensity Score [PDF]

open access: yes
We investigate the finite sample properties of a large number of estimators for the average treatment effect on the treated that are suitable when adjustment for observable covariates is required, like inverse probability weighting, kernel and other ...
Huber, Martin   +2 more
core   +2 more sources

Impact Evaluation of Raskin Program using Matching Method: Case of IFLS 5

open access: yesJEJAK: Jurnal Ekonomi dan Kebijakan, 2018
Beras untuk Keluarga Miskin (RASKIN) program has been applied since 1998 and has been renamed as Beras Sejahtera (RASTRA) in early 2017, but their effectiveness is still debatable.
Endiarjati Dewandaru Sadono
doaj   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

open access: yesFEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer   +7 more
wiley   +1 more source

Catholic Schools and Bad Behavior: A Propensity Score Matching Analysis [PDF]

open access: yes
Although there is a sizeable literature on the effect of private school attendance on academic student outcomes, the number of studies that investigate the impact of school sector on non-academic outcomes is limited. Using a rich data set, we analyze the
Erdal Tekin, H. Naci Mocan
core  

ASPECTS OF THE USE OF PROPENSITY SCORE MATCHING METHODS IN NEUROSURGERY

open access: yesColuna/Columna
Objective Observational studies and register data provide researchers with ample opportunities to obtain answers to questions that randomized controlled trials cannot answer for organizational or ethical reasons. One of the most common tools for solving
ALEKSANDR V. KRUTKO   +4 more
doaj   +1 more source

Adoption of rainwater harvesting and its impact on smallholder farmer livelihoods in Kutaber district, South Wollo Zone, Ethiopia

open access: yesCogent Food & Agriculture, 2020
This study aimed to identify determinants of rainwater harvesting adoption, and evaluate its impact on livelihood of smallholder farmers in Kutaber district. A multi-stage sampling technique was employed to select 196 sample households.
Zenebe Kelemewerk Mekuria   +2 more
doaj   +1 more source

MARK4 enhances stress granule formation under oxidative stress and increases tau accumulation

open access: yesFEBS Open Bio, EarlyView.
MARK4 (red dots) localizes to stress granules (orange dots) and promotes their formation under oxidative stress by modulating TIA1 (blue dots). MARK4 and TIA1 synergistically increase tau (purple) accumulation, and the reduction of the TIA1 ortholog suppresses neurodegeneration in a fly model.
Sho Nakajima   +8 more
wiley   +1 more source

Ghana’s National Health Insurance Scheme in the Context of the Health MDGs – An Empirical Evaluation Using Propensity Score Matching [PDF]

open access: yes
In 2003 the Government of Ghana established a National Health Insurance Scheme (NHIS) to improve health care access for Ghanaians and eventually replace the cashand- carry system.
Joseph Mensah   +2 more
core  

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