Results 21 to 30 of about 17,375,616 (260)

A dynamic model for the optimal selection of secondary indexes

open access: yes, 1983
A model is presented which determines the optimal degree of secondary indexing for data processing requirements which follow variations over different time periods in a manner known in advance.
Hatzopoulos, Michael   +3 more
core   +1 more source

Coffee Agro-industry Conceptual Model Using System Dynamics in Lampung Province, Indonesia

open access: yesIndustria: Jurnal Teknologi dan Manajemen Agroindustri
The consumption trend of coffee downstream products is increasing every year. However, the high variation in the quality of raw materials on the upstream side impacts agroindustrial activities.
Nia Rosiana   +2 more
doaj   +1 more source

Stability Control of Propeller Autonomous Underwater Vehicle Based on Combined Sections Method

open access: yesPolish Maritime Research, 2015
Learning from the motion principle of quadrotor, a symmetric propeller AUV, which has small size and low velocity is designed. Compared with the AUV equipped with rudders, it has better maneuverability and manipulation at low velocity.
Qi Duo   +6 more
doaj   +1 more source

Evaluating the impact of large-scale nucleic acid testing and home quarantine on a novel emerging infectious disease prevention and control: a dynamic modeling approach

open access: yesFrontiers in Public Health
IntroductionConducting large-scale viral nucleic acid testing and isolating SARS-CoV-2-infections were crucial strategies in China, which played a key role in successfully controlling multiple waves of the Omicron epidemic.
Zuiyuan Guo   +9 more
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo   +9 more
wiley   +1 more source

An Adaptive Navigation System for an Autonomous Underwater Vehicle Based on Data Transmitted via an Acoustic Channel from a Hydroacoustic Station

open access: yesDrones
Currently, it is becoming relevant to use cheap autonomous underwater vehicles (AUVs) to perform various underwater operations (environmental monitoring, aquatic protection, search and tracking of underwater biological objects, etc.).
Chang Liu   +3 more
doaj   +1 more source

Comparative Drug Response Profiling in Neuroblastoma Cell Lines and Patient‐Derived Tumor Organoids

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT High‐risk neuroblastoma remains a leading cause of pediatric cancer mortality, and improved preclinical models are needed to guide therapeutic developments. We screened seven high‐risk neuroblastoma cell lines and three patient‐derived tumor organoids with 528 compounds alongside bone marrow controls, and compared them with external datasets ...
Krzysztof Wierbiłowicz   +12 more
wiley   +1 more source

Economywide impact of climate shock on agricultural sector, women employment and poverty: a Burkina Faso case study

open access: yesFrontiers in Sustainable Food Systems
IntroductionThe study examines the impact of climate shocks in Burkina Faso, concentrating on agriculture, food security, rural income, and women’s employment.
Boureima Sawadogo   +2 more
doaj   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben   +4 more
wiley   +1 more source

Regional Spatiotemporal Collaborative Prediction Model for Air Quality

open access: yesIEEE Access, 2019
Numerous countries in the world pay close attention to the change of air quality and the control of air pollution. Air quality prediction has become a challenging issue owing to the complex characteristics with time-space nonlinearity and multi ...
Guyu Zhao   +4 more
doaj   +1 more source

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