Article
Environmental Sciences
Jaroslaw Dabrowski, Przemyslaw Czerniejewski, Adam Brysiewicz, Beata Wiecaszek
Summary: The study aims to determine the characteristics of Rangia cuneata, a bivalve species, during the initial phase of colonization. The results show that the population in the Baltic Sea has larger individuals compared to other populations, and the shell shape changes as individuals reach sexual maturity.
Article
Mathematical & Computational Biology
Masakazu Onitsuka
Summary: The purpose of this study is to apply conditional Ulam stability theory to the von Bertalanffy growth model and investigate the biological significance of the Ulam constant found in the model using numerical simulations.
MATHEMATICAL BIOSCIENCES AND ENGINEERING
(2022)
Article
Biology
Michael R. Kearney
Summary: Metabolic theory aims to address ecological and evolutionary issues by incorporating physical principles of energy and mass exchange, with individual growth models being the fundamental basis. There is confusion and controversy surrounding the origins, application, logical consistency, and realism of these models. Putter's original insights have influenced subsequent growth theories, such as von Bertalanffy's and the DEB theory, leading to advancements in understanding metabolic patterns at the individual level.
BIOLOGICAL REVIEWS
(2021)
Article
Energy & Fuels
Yunpeng Zhang, Peng Hao, Hao Lu, Jiao Ma, Ming Yang
Summary: Existing methods for parameter identification and performance estimation have two disadvantages. This paper proposes a novel method that eliminates the effect of reference condition selection and achieves high efficiency and accuracy through considering the dependence of parameters on environmental conditions.
Article
Multidisciplinary Sciences
Hiromasa Hirai, Mariko Yamashita, Masanori Matsumoto, Masaki Hayakawa, Kazuya Sakai, Tetsuo Ueda, Nahoko Ogata
Summary: This study compared PNV and AMD by analyzing clinical features and genetic characteristics, finding significant differences in age, presence of unusually large VWF multimers, and subretinal hemorrhages between the PNV and AMD groups.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Electrical & Electronic
Yunpeng Zhang, Peng Hao, Hao Lu, Tingkun Gu, Ming Yang
Summary: A novel method for performance estimation of PV modules under varying operating conditions without setting a reference condition is proposed in this paper. The method models and modifies the dependence of model parameters on environmental conditions, and uses guaranteed convergence particle swarm optimization technology to determine the model parameters from experimental data. The proposed method shows better accuracy in estimating the I-V and P-V curves and maximum power point under different irradiance and temperature conditions compared to traditional methods, and can be further applied to estimate the output power of PV systems.
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
(2022)
Article
Engineering, Marine
Daniel Pauly, Cui Liang, Weiwei Xian, Elaine Chu, Nicolas Bailly
Summary: Chaetognatha is a marine invertebrate phylum with 132 extant carnivorous species, lacking clear protostomian affinities. Despite being understudied, they rank second in abundance in marine zooplankton. The Gill-Oxygen Limitation Theory can explain how temperature and respiration affect their growth and life history traits. Size-temperature relationships and oxygen demand related to growth patterns are documented among Chaetognatha species.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Fisheries
John M. Klinck, Eric N. Powell, Kathleen M. Hemeon, Jillian R. Sower, Daniel R. Hennen
Summary: Organisms increase in size over time due to excess assimilation over metabolic energy demands. Most organisms reach a maximum size with increasing age as gain and loss balance. The von Bertalanffy length-at-age relationship imposes such a maximum size, but some long-lived fished species continue to grow at old age. A modified form of the von Bertalanffy model is proposed to represent continued growth at old age and matches the observed data for ocean quahogs.
JOURNAL OF SHELLFISH RESEARCH
(2023)
Article
Fisheries
Yin Zhang, Zhi Huang, Yao Zhou, Haiyi Ma, Hafiz Sohaib Ahmed Saqib, Qiong Su, Wenxiao Cui, Hongyu Ma
Summary: This study examined the effects of diet, salinity, and light conditions on the growth and moulting cycle of juvenile Scylla paramamosain. The findings indicate that diet and salinity have significant effects on the growth performance and moulting cycle of the crablets, while light condition only affects the growth performance. The results can provide guidance for establishing appropriate conditions in the mariculture of juvenile mud crabs.
AQUACULTURE RESEARCH
(2022)
Article
Fisheries
Jennifer S. S. Bigman, Nicholas C. C. Wegner, Nicholas K. K. Dulvy
Summary: The Gill Oxygen Limitation Theory (GOLT) suggests that the mismatch between oxygen supply and demand due to geometric constraints on gill surface area restricts metabolic rate and available energy for biological processes. However, the metric used to measure gill surface area in the original GOLT relationship is not adequate and fails to account for the variability in gill surface area scaling. Despite this, the gill area index does explain the variation in growth performance among fish species, but its value depends on how it is calculated.
FISH AND FISHERIES
(2023)
Article
Multidisciplinary Sciences
Ciarrah-Jane Shannon Barry, Neil M. Davies, Tim T. Morris
Summary: Teacher expectations of pupil ability can influence educational progression and exam level, with accuracy of these expectations being influenced by student socioeconomic background and genetic factors.
SCIENTIFIC REPORTS
(2022)
Article
Ecology
Jasper Cornelis Croll, Tobias van Kooten
Summary: Growth and growth limitation are important indicators of density dependence and environmental limitation of populations. Estimating individual growth trajectories is crucial for understanding and predicting population dynamics. Current statistical models only consider a subset of factors or require extensive individual growth history, thus there is a need for a new model to address these limitations.
ECOLOGY AND EVOLUTION
(2022)
Article
Mathematics, Applied
Jacek Banasiak, David Wetsi Poka, Sergey Shindin
Summary: The paper investigates the well-posedness and long-term asymptotics of a growth-fragmentation equation with unbounded fragmentation rates and McKendrick-von Foerster boundary conditions. Three different methods are utilized to prove the existence of a strongly continuous semigroup solution, which is shown to be a compact perturbation of the corresponding semigroup with homogeneous boundary conditions. The paper also establishes sufficient and necessary conditions for the irreducibility of the semigroup, necessary for demonstrating asynchronous exponential growth. Additionally, an explicit solution is derived for a special class of growth-fragmentation problems with McKendrick-von Foerster boundary conditions, and its Perron eigenpair, determining its long-term behavior, is found.
DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES S
(2023)
Article
Hematology
Johan Boender, Ferdows Atiq, Marjon H. Cnossen, Johanna G. van der Bom, Karin Fijnvandraat, Joke de Meris, Moniek P. M. de Maat, Karin P. M. van Galen, Britta A. P. Laros-van Gorkom, Karina Meijer, Jeroen Eikenboom, Frank W. G. Leebeek
Summary: The study validated VWF multimer densitometric analysis in a large cohort of VWD patients and identified patient characteristics associated with densitometric outcomes. The analysis showed excellent accuracy compared with visual multimer analysis, contributing to a better understanding of the clinical features of VWD patients.
Article
Engineering, Manufacturing
Vyom Sharma, Divyansh Singh Patel, Vishal Agrawal, V. K. Jain, J. Ramkumar
Summary: Over the past two decades, researchers have focused on improving the machining accuracy, precision, and quality in Wire-ECMM by using high frequency pulse voltages. However, this can compromise the machining rate and increase power consumption. This study suggests using sinusoidal and triangular voltage waveforms instead of rectangular voltage waveforms for machining, resulting in improved accuracy and reduced surface roughness.
JOURNAL OF MANUFACTURING PROCESSES
(2021)