Results 31 to 40 of about 247,846 (249)

An alternative variational principle for variable metric updating [PDF]

open access: yesMathematical Programming, 1984
We describe a variational principle based upon minimizing the extent to which the inverse Hessian approximation, say H, violates the quasi-Newton relation, on the step immediately prior to the step used to construct H. Its application to the case when line searches are exact suggests use of the BFGS update.
openaire   +4 more sources

An Environmental Scan of Bibliometrics and Research Impact Open Instructional Trends at Canadian Academic Research Libraries

open access: yesCanadian Journal of Academic Librarianship
While bibliometrics have been used for years in academia, recent conversations into their responsible use have driven a need for greater understanding of bibliometrics and research impact within the academic community.
Megan Palmer, Laura Bredahl, Kari Weaver
doaj   +1 more source

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks   +5 more
wiley   +1 more source

Relation Between Gender and Risk in Tourism: A Data-Driven Exploration of Destination Choice

open access: yesTourism and Hospitality
This study explores how gender influences risk perception and tourist destination choice by examining the academic literature from the Web of Science and Scopus databases spanning 1995 to 2022.
Maria Armiñana-Maristany   +2 more
doaj   +1 more source

Transaction Entropy: An Alternative Metric of Market Performance

open access: yesEntropy, 2023
Market uncertainty has a significant impact on market performance. Previous studies have dedicated much effort towards investigations into market uncertainty related to information asymmetry and risk. However, they have neglected the uncertainty inherent in market transactions, which is also an important aspect of market performance, besides the ...
Hua Zhong, Xiaohao Liang, Yougui Wang
openaire   +3 more sources

Are Fertility Preservation Procedures Before Gonadotoxic Therapy and Hematopoietic Stem Cell Transplantation Feasible and Safe in Very Young Children? A Retrospective Cohort Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Fertility preservation (FP) is increasingly integrated into the care of pediatric patients exposed to gonadotoxic therapy or conditioning for hematopoietic stem cell transplantation (HSCT), yet perioperative data in infants and toddlers remain scarce.
Kerstin Saalabian   +13 more
wiley   +1 more source

Impact of greenhouse gas metrics on the quantification of agricultural emissions and farm-scale mitigation strategies: a New Zealand case study

open access: yesEnvironmental Research Letters, 2013
Agriculture emits a range of greenhouse gases. Greenhouse gas metrics allow emissions of different gases to be reported in a common unit called CO _2 -equivalent. This enables comparisons of the efficiency of different farms and production systems and of
Andy Reisinger, Stewart Ledgard
doaj   +1 more source

Feasibility and Safety of Somato‐Cognitive Coordination Therapy for Cerebellar Ataxia Following Pediatric Brain Tumor Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cerebellar ataxia after pediatric brain tumor treatment can cause persistent gait, balance, and speech impairment, yet no established rehabilitation strategy exists. Somato‐cognitive coordination therapy (SCCT) is a virtual reality–guided intervention designed to promote sensorimotor integration through visually constrained reaching
Masanobu Takeuchi   +10 more
wiley   +1 more source

Prevalence of 21 Physician‐Defined Severe Toxicities Following Childhood Acute Lymphoblastic Leukemia Treatment: Australian Retrospective Cohort Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, with an overall survival now surpassing 90% in developed countries. However, treatments are not without adverse effects. In this study, we apply the severe toxicity‐free survival (STFS) framework to determine the prevalence of 21 physician‐defined severe ...
Lane Collier   +10 more
wiley   +1 more source

Relationship of Altmetric Attention Score, Twitter Performance, and Dimensions Badge Value With Traditional Metrics in Top-Cited Anterior Cruciate Ligament Research Studies

open access: yesOrthopaedic Journal of Sports Medicine, 2023
Background: Alternative citation metrics—such as the Altmetric Attention Score (AAS), number of tweets (TN), and dimensions badge value (DBV)—are emerging as new options for assessing the value of scientific works.
Hasan Basri Sezer MD   +4 more
doaj   +1 more source

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