Results 1 to 10 of about 41,543,712 (182)

Sample size planning for pilot studies [PDF]

open access: yesarXiv, 2021
Pilot studies are often the first step of experimental research. It is usually on a smaller scale and the results can inform intervention development, study feasibility and how the study implementation will play out, if such a larger main study is undertaken.
arxiv  

Multi-Study R-Learner for Estimating Heterogeneous Treatment Effects Across Studies Using Statistical Machine Learning [PDF]

open access: yesarXiv, 2023
Estimating heterogeneous treatment effects (HTEs) is crucial for precision medicine. While multiple studies can improve the generalizability of results, leveraging them for estimation is statistically challenging. Existing approaches often assume identical HTEs across studies, but this may be violated due to various sources of between-study ...
arxiv  

Automatically Finding and Categorizing Replication Studies [PDF]

open access: yesarXiv, 2023
In many fields of experimental science, papers that failed to replicate continue to be cited as a result of the poor discoverability of replication studies. As a first step to creating a system that automatically finds replication studies for a given paper, 334 replication studies and 344 replicated studies were collected.
arxiv  

From Little Things Big Things Grow: A Collection with Seed Studies for Medical Systematic Review Literature Search [PDF]

open access: yes, 2022
Medical systematic review query formulation is a highly complex task done by trained information specialists. Complexity comes from the reliance on lengthy Boolean queries, which express a detailed research question. To aid query formulation, information specialists use a set of exemplar documents, called `seed studies', prior to query formulation ...
arxiv   +1 more source

Assessing replicability of findings across two studies of multiple features [PDF]

open access: yesBiometrika (2018), 2015
Replicability analysis aims to identify the findings that replicated across independent studies that examine the same features. We provide powerful novel replicability analysis procedures for two studies for FWER and for FDR control on the replicability claims. The suggested procedures first select the promising features from each study solely based on
arxiv   +1 more source

Binary Outcome Copula Regression Model with Sampling Gradient Fitting [PDF]

open access: yesarXiv, 2021
Use copula to model dependency of variable extends multivariate gaussian assumption. In this paper we first empirically studied copula regression model with continous response. Both simulation study and real data study are given. Secondly we give a novel copula regression model with binary outcome, and we propose a score gradient estimation algorithms ...
arxiv  

Current Distribution of Selected Vector‐borne Diseases in Domestic Dogs From Bucharest, Romania

open access: yesVeterinary Medicine and Science, Volume 11, Issue 4, July 2025.
Serological testing of 317 dogs in Bucharest (2020‐2024) revealed an overall Canine vector‐borne diseases (CVBD) seroprevalence of 8.8%, with Dirofilaria immitis (12.62%) being the most common. Shelter and older dogs had higher infection rates. Climate change and vector expansion may influence pathogen spread, underscoring the need for enhanced ...
Ioana Sandu   +3 more
wiley   +1 more source

Weighted prevalence and associated risk factors of hepatitis E virus antibodies among pregnant women in rural Burkina Faso using dried blood spot samples

open access: yesHepatology Research, Volume 55, Issue 6, Page 795-806, June 2025.
Abstract Aim To estimate the weighted prevalence of hepatitis E virus (HEV) antibodies and risk factors among pregnant women in Burkina Faso and to evaluate the efficiency of dried blood spots (DBS) in detecting HEV antibodies. Methods We first evaluated the efficiency of DBS detecting HEV antibodies by comparing 62 DBS with matched serum samples using
Chanroth Chhoung   +13 more
wiley   +1 more source

Prevalence of culicine salivary antibodies in non‐human primates living in national parks in Thailand

open access: yesMedical and Veterinary Entomology, Volume 39, Issue 2, Page 278-290, June 2025.
Anti‐mosquito salivary gland antibodies were detected in the sera of macaques (Macaca arctoides, M. leonina and M. fascicularis) from Kaeng Krachan, Khao Yai and Mu Ko Ranong National Parks, respectively. For M. leonina and M. fascicularis, the highest titres were against Ae. aegypti while Ae. albopictus antibody titres were observed in M.
Ariza Minelle A. Aguila   +8 more
wiley   +1 more source

Socioecology and Prevalence of SARS‐CoV‐2 Infection in Quilombolas Living in the Brazilian Amazon Socioecologia e Prevalência de Infecção pelo SARS‐CoV‐2 em Quilombolas Vivendo na Amazônia Brasileira Socioecología y prevalencia de la infección por SARS‐CoV‐2 en quilombolas que viven en la Amazonía brasileña

open access: yesAmerican Journal of Human Biology, Volume 37, Issue 5, May 2025.
ABSTRACT Objectives This cross‐sectional study presents socioecological, epidemiological aspects, and the seroprevalence of immunoglobulin G (IgG) against severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) in a group of quilombola (afro‐derived) communities in the states of Pará and Tocantins, in the Brazilian Amazon, to evaluate the impact ...
Keise Adrielle Santos Pereira   +19 more
wiley   +1 more source

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