Results 31 to 40 of about 39,437,158 (299)

The Effect of Distinct Geometric Semantic Crossover Operators in Regression Problems [PDF]

, 2015
This paper investigates the impact of geometric semantic crossover operators in a wide range of symbolic regression problems. First, it analyses the impact of using Manhattan and Euclidean distance geometric semantic crossovers in the learning process ...
Albinati, Julio, Otero, Fernando E.B., Julio Albinati, Luiz Otávio V. B. Oliveira, Gisele L. Pappa, Pappa, Gisele L., Oliveira, Luiz Otávio V.B., Fernando E. B. Otero   +7 more
core   +1 more source

Surgery As a Trigger for Incident Venous Thromboembolism: Results from a Population-Based Case-Crossover Study

TH Open, 2023
Background Surgery is a major transient risk factor for venous thromboembolism (VTE). However, the impact of major surgery as a VTE trigger has been scarcely investigated using a case-crossover design.
Dana Meknas, Sigrid K. Brækkan, John-Bjarne Hansen, Vânia M. Morelli   +3 more
doaj   +1 more source

Short-term effects of ambient ozone on pediatric pneumonia hospital admissions: a multi-city case-crossover study in China

Environmental Health and Preventive Medicine
Background: Children’s respiratory health demonstrates particular sensitivity to air pollution. Existing evidence investigating the association between short-term ozone (O3) exposure and childhood pneumonia remains insufficient and inconsistent ...
Huan Wang, Huan-Ling Zeng, Guo-Xing Li, Shuang Zhou, Jin-Lang Lyu, Qin Li, Guo-Shuang Feng, Hai-Jun Wang   +7 more
doaj   +1 more source

Dynastic Potential Crossover Operator [PDF]

, 2021
An optimal recombination operator for two parent solutions provides the best solution among those that take the value for each variable from one of the parents (gene transmission property).
Tinós, Renato, Whitley, L Darrell, Chicano, Francisco, Whitley, L. Darrell, Ochoa, Gabriela, Chicano-García, José-Francisco, Whitley, Darrell, Francisco Chicano, L. Darrell Whitley, Renato Tinós, Gabriela Ochoa   +10 more
core   +1 more source

Satellite-based assessment of air pollution exposure and its association with respiratory mortality in Iran: a space-time stratified case-crossover study

Heliyon
Background: Ambient air pollution is an important public health concern in Iran, where populations are exposed to a complex mixture of particulate and gaseous pollutants. While numerous studies have examined the relationship between ambient air pollution
Nadia Mohammadi Dashtaki, Mohammad Fararouei, Alireza Mirahmadizadeh, Mohammad Hoseini   +3 more
doaj   +1 more source

Acute triggers of myocardial infarction: A case-crossover study

The Egyptian Heart Journal, 2017
Acute myocardial infarction (AMI) is one of the most preventable non-communicable diseases in human. Identifying triggers of myocardial infarction (MI) and prevention ways of exposure-induced complications can reduce morbidity and mortality in people at risk.The aim of this study was to identify the emotional, environmental, physical and chemical ...
Maryam Ghiasmand, Mohammad Taghi Moghadamnia, Majid Pourshaikhian, Ehsan Kazemnejad Lili   +3 more
openaire   +3 more sources

Short term exposure to PM2.5 and its chemical components associated with violence related injury: Evidence from a large time-stratified case-crossover study in China

Ecotoxicology and Environmental Safety
Background: Ambient fine particulate matter (PM2.5) and its chemical components are closely linked to human health, but evidence on their association with violence-related injury remains limited.
Weiquan Zeng, Yuan Wang, Mengen Guo, Yuliang Er, Jianxiong Hu, Xiao Deng, Guanhao He, Ye Jin, Tao Liu, Cuirong Ji, Sujuan Chen, Leilei Duan, Yanfang Guo, Fan Zhang, Pengpeng Ye, Wenjun Ma   +15 more
doaj   +1 more source

Soft motions encoded by the fold and mediated by conserved hinge sites drive V‐ATPase allosteric machinery and autoinhibition

FEBS Letters, EarlyView.
Vacuolar H+‐ATPase (V‐ATPase) is a multisubunit rotary proton pump that acidifies intracellular compartments. Using elastic network models, we identified conserved hinge residues that govern its large‐scale functional motions. We show that intrinsically encoded ‘soft modes’ drive critical functional transitions, including rotary catalysis and ...
Diksha Parwana, Xiaowei Bogetti, Stuti Sharma, Ivet Bahar   +3 more
wiley   +1 more source

Ambient temperature and non-accidental mortality: A nationwide space–time-stratified case-crossover study within the 100 million Brazilian Cohort

Environment International
Research on ambient temperature effects on mortality leveraging cohort data remains scarce. This study estimates the association between ambient temperature and non-accidental mortality and investigates potential effect modification of the temperature ...
Taísa R. Cortes, Julia M. Pescarini, Otavio T. Ranzani, Enny S. Paixão, Danielson J.D. Neves, Poliana Rebouças, Rita de Cássia Ribeiro-Silva, Andrêa J.F. Ferreira, Luiz A.C. Galvão, Elizabeth B. Brickley, Liam Smeeth, Ludmilla V. Jacobson, Ismael H. Silveira, Mauricio L. Barreto   +13 more
doaj   +1 more source

Risk Factors for Seborrhoeic Dermatitis Flares: Case-control and Case-crossover Study

, 2020
Patients with flares of seborrhoeic dermatitis were compared with control outpatients seen during the same time-period in a case-control study, and with themselves while in remission in a case-crossover study. All patients consulted the same office-based
Costagliola, D, Beaulieu, P, CHOSIDOW, Olivier, DUPUY, Alain, Fardet, L, Chosidow, O, LANCAR, Rémi, Lancar, R, Missy, P, FARDET, Laurence, MISSY, Pascale, Dupuy, A, COSTAGLIOLA, Dominique, BEAULIEU, Philippe, O Chosidow, Dominique Costagliola, Olivier Chosidow, Rémi Lancar, Philippe Beaulieu, P Beaulieu, A Dupuy, Pascale Missy, D Costagliola, Alain Dupuy, R Lancar, L Fardet, P Missy, Laurence Fardet   +27 more
core   +1 more source