Results 41 to 50 of about 188,725,496 (291)

Copper concentration of vineyard soils as a function of pH variation and addition of poultry litter

open access: yesBrazilian Archives of Biology and Technology, 2007
Copper (Cu) concentration was evaluated as a function of pH variation and addition of poultry litter to a Dystrophic Lithic Udorthent and a Humic Dystrudept from the state of Rio Grande do Sul, Brazil, cultivated with vines treated with successive ...
Gilmar Ribeiro Nachtigall   +3 more
doaj   +1 more source

A note on the variation of geometric functionals

open access: yesCoRR, 2022
Calculus of Variation combined with Differential Geometry as tools of modelling and solving problems in image processing and computer vision were introduced in the late 80's and the 90s of the 20th century. The beginning of an extensive work in these directions was marked by works such as Geodesic Active Contours (GAC), the Beltrami framework, level ...
openaire   +3 more sources

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider   +15 more
wiley   +1 more source

A micro-perspective on variation and universals [PDF]

open access: yes, 2017
This paper approaches the questions raised in the workshop description surrounding universals and variation from the perspective of microvariation. Throughout this document we frequently refer to van Craenenbroeck and van Koppen (2016) (henceforth VCVK),
van Koppen, J.M.   +3 more
core  

Dual origins of dairy cattle farming--evidence from a comprehensive survey of European Y-chromosomal variation [PDF]

open access: yes, 2011
BACKGROUND: Diversity patterns of livestock species are informative to the history of agriculture and indicate uniqueness of breeds as relevant for conservation.
Ginja, Catarina   +61 more
core   +3 more sources

Variation in Speech Perception in Noise as a Function of Age in Typically Developing Children

open access: yesJournal of Indian Speech Language & Hearing Association, 2019
Introduction Speech recognition performance has been observed to vary with the age of the listener. Children having difficulty in understanding speech in noisy situations is found to have an adverse effect on learning. The primary aim of the study was to
Nerale Maraiah Mamatha, Asha Yathiraj
doaj   +1 more source

Acute Neurological Events in Children With Hemoglobin SC Disease: A Multicenter Retrospective Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Neurological manifestations in children with hemoglobin SC (HbSC) disease remain insufficiently characterized, particularly regarding acute events. The aim of this study was to describe the spectrum and frequency of acute neurological events in a multicenter cohort of children with HbSC disease.
Célia Paulmin   +11 more
wiley   +1 more source

Exploring reasons for variation in ordering thyroid function tests in primary care: a qualitative study [PDF]

open access: yes, 2014
Background: The ordering of thyroid function tests (TFTs) is increasing but there is not a similar increase in thyroid disorders in the general population, leading some to query whether inappropriate testing is taking place.
Child, S   +21 more
core  

Random variation of inspiratory lung function parameters in patients with COPD: a diagnostic accuracy study

open access: yesBMC Pulmonary Medicine, 2010
Background In chronic obstructive pulmonary disease (COPD), the response of the forced expiratory volume in 1 second (FEV1) after bronchodilator application is weak.
Dekhuijzen PN Richard   +4 more
doaj   +1 more source

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