Results 61 to 70 of about 9,046,003 (326)

Écrire le temps au Moyen Âge

open access: yesRecherches, 2021
This article aims to understand the relationship which historians have with the category of time. Fernand Braudel’s approach to this question in his writings on the ‘longue durée’ constitutes an epistemological break within the discipline, and ...
Myriam Chopin-Faron
doaj   +1 more source

The value of reliability [PDF]

open access: yes, 2007
We derive the value of reliability in the scheduling of an activity of random duration, such as travel under congested conditions. We show that the minimal expected cost is linear in the mean and standard deviation of duration, regardless of the form of ...
Fosgerau, Mogens, Karlström, Anders
core   +4 more sources

Prolonged operative duration is associated with complications: a systematic review and meta-analysis.

open access: yesJournal of Surgical Research, 2018
BACKGROUND The aim of this study was to systematically synthesize the large volume of literature reporting on the association between operative duration and complications across various surgical specialties and procedure types.
Hang Cheng   +6 more
semanticscholar   +1 more source

Evaluation of the Utility of Baseline Echocardiogram in Patients With Standard Risk Precursor B‐Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background A routine baseline echocardiogram is often obtained prior to anthracycline administration in children with cancer. The utility of baseline echocardiogram is unclear in patients with standard risk B‐cell acute lymphoblastic leukemia (SR B‐ALL) as their anthracycline cumulative dose is low.
Ziyad Alrajhi   +4 more
wiley   +1 more source

Long-duration hippocampal sharp wave ripples improve memory

open access: yesScience, 2019
Longer ripples make better memories Sharp wave ripples in the hippocampus are thought to play a role in memory formation and action planning. Fernández-Ruiz et al.
Antonio Fernández-Ruiz   +5 more
semanticscholar   +1 more source

Gemcitabine, Docetaxel, Melphalan, Carboplatin as Part of Sequential Cycles of High‐Dose Chemotherapy With Autologous Hematopoietic Stem‐Cell Rescue for Multiply Relapsed/Refractory Pediatric Germ Cell Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Although most malignant germ cell tumors (GCTs) are highly curable with cisplatin‐based therapy, options for patients with multiply relapsed/refractory disease remain limited. For this population, we report the first pediatric use of gemcitabine, docetaxel, melphalan, and carboplatin (GemDMC) as part of sequential cycles of high‐dose ...
Maria Frost   +10 more
wiley   +1 more source

Rice-Fish Co-Culture Promotes Soil Carbon Sequestration Through Alterations in Soil Microbial Community Structure

open access: yesAgronomy
The high-input production mode of rice monoculture (RM) has caused severe soil degradation and biodiversity loss, necessitating a transition toward more sustainable practices.
Daolin Sun   +9 more
doaj   +1 more source

The short-duration GRB 050724 host galaxy in the context of the long-duration GRB hosts

open access: yes, 2006
We report optical and near-infrared broad band observations of the short-duration GRB 050724 host galaxy, used to construct its spectral energy distribution (SED).
A. Antonelli   +49 more
core   +1 more source

Short Sleep Duration Is Associated with Reduced Leptin, Elevated Ghrelin, and Increased Body Mass Index

open access: yesPLoS Medicine, 2004
Background Sleep duration may be an important regulator of body weight and metabolism. An association between short habitual sleep time and increased body mass index (BMI) has been reported in large population samples.
Shahrad Taheri   +4 more
semanticscholar   +1 more source

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