Results 71 to 80 of about 1,201,247 (271)

The potential of citizen science to transform science: Lessons for a sustainable future

open access: yesPeople and Nature
Globally, environmental crises are at a critical point. Findings from scientific research are crucial to understand these issues and to inform new policies to address them.
K. Austen   +3 more
doaj   +1 more source

Clinical Characteristics and Prognostic Risk Factors for Pediatric B‐Cell Lymphoblastic Lymphoma: A Multicenter Retrospective Cohort Study for China Net Childhood Lymphoma

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background B‐cell lymphoblastic lymphoma (B‐LBL) represents a rare variety of non‐Hodgkin lymphoma, with limited research on its biology, progression, and management. Methods A retrospective analysis was performed on the clinical characteristics of 256 patients aged ≤18 years who received treatment under the China Net Childhood Lymphoma (CNCL)‐
Zhijuan Liu   +20 more
wiley   +1 more source

Estimation of travel time reduction for ice-breaking ships when considering ice information data

open access: yesAnnals of Glaciology
In light of the recent increase in polar shipping and potential future increase with continued climate change reliable routing in ice-covered waters becomes increasingly important for environmental, economic and safety concerns.
Bernhard Schmitz   +3 more
doaj   +1 more source

Increasing Nonlinear Behavior at the Soil-foundation Interface to Improve Seismic Performance of the Structure [PDF]

open access: yesNumerical Methods in Civil Engineering
It is well known that the performance of the structure is influenced by nonlinear behavior at the soil-foundation interface. Results of the previous studies have shown that the vertical Safety Factor (FS) of the foundation is not a suitable criterion to ...
Amir Hossein Jafarieh, Ahmadreza Hemmati
doaj   +1 more source

Do small swimmers mix the ocean?

open access: yes, 2010
In this communication we address some hydrodynamic aspects of recently revisited drift mechanism of biogenic mixing in the ocean (Katija and Dabiri, Nature vol. 460, pp. 624-626, 2009).
Leshansky, A. M., Pismen, L. M.
core   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou   +10 more
wiley   +1 more source

Predicting the Future Burden of Renal Replacement Therapy in Türkiye Using National Registry Data and Comparative Modeling Approaches

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül   +2 more
wiley   +1 more source

Challenges in detecting evolutionary forces in language change using diachronic corpora

open access: yesGlossa, 2020
Newberry et al. (Detecting evolutionary forces in language change, Nature 551, 2017) tackle an important but difficult problem in linguistics, the testing of selective theories of language change against a null model of drift.
Andres Karjus   +3 more
doaj   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Cram\'er-Rao Bounds for Polynomial Signal Estimation using Sensors with AR(1) Drift

open access: yes, 2012
We seek to characterize the estimation performance of a sensor network where the individual sensors exhibit the phenomenon of drift, i.e., a gradual change of the bias.
Kar, Swarnendu   +2 more
core   +1 more source

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