Article
Physiology
Camila F. de Souza, Larissa Rugila S. Stopa, Andressa B. Martins, Ana Luiza M. Wunderlich, Gabriela Mendicelli Lopes, Flaviane de Fatima Silva, Ayumi Cristina Medeiros Komino, Dimas A. M. Zaia, Cassia Thais B. V. Zaia, Fabio Bessa Lima, Ernane Torres Uchoa
Summary: Lactation overnutrition can lead to obesity and disrupt liver metabolism. Increased levels of glucocorticoids are considered as a mediator for obesity development, and bilateral adrenalectomy can reduce obesity. This study suggests that increased circulating glucocorticoids play a pivotal role in liver and plasma impairments induced by lactation overnutrition in male rats.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Biology
Wei Liu, Zhi-Jun Zhao
Summary: The thermoneutral zone of lactating hamsters is wider compared to non-reproductive females. Lactating hamsters have increased energy expenditure and higher milk output to meet the demands of their offspring, resulting in a downward shift of the lower critical temperature of the thermoneutral zone. The organs with high energy requirements in lactating hamsters are considerably heavier, especially in those raising large litter sizes.
JOURNAL OF THERMAL BIOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Serena Calabro, Alessandro Vastolo, Nadia Musco, Pietro Lombardi, Alessandro Troisi, Angela Polisca, Emanuela Vallesi, Riccardo Orlandi, Monica I. Cutrignelli
Summary: The study aimed to compare two diets, Control (CTR) and Experimental (EX), which were administered to medium and large-sized bitches from two months before the expected proestrus until 30 days after delivery. Results showed that both diets were effective for the bitches and puppies, with all tested bitches showing healthy status after 30 days of lactation and puppies' growth falling within the normal physiological range.
Article
Medicine, Research & Experimental
Camila F. de Souza, Larissa Rugila S. Stopa, Andressa B. Martins, Ana Luiza M. Wunderlich, Gabriela Mendicelli Lopes, Dimas A. M. Zaia, Cassia Thais B. V. Zaia, Fabio Goulart de Andrade, Cristiane Mota Leite, Ernane Torres Uchoa
Summary: Overnutrition during adolescence promotes hyperreactivity of the HPA axis and reduces the responsiveness to glucocorticoid effects on energy balance and negative feedback of HPA axis in adult male rats.
Review
Cell Biology
Ching Chan
Summary: One of the major challenges in studying plant responses to biotic and abiotic stress is to optimize plant growth and plasticity under different environmental constraints, which ultimately benefits agricultural production. However, efforts to enhance plant immunity often result in compromised growth and reduced yield. This trade-off is controlled by complex signaling driven by secondary messengers and phytohormones.
Article
Biochemistry & Molecular Biology
Encarnacion Amusquivar, Clara Sanchez-Blanco, Emilio Herrera
Summary: The study found that reducing litter size during lactation decreases liver lipogenesis de novo while increasing the synthesis of long-chain polyunsaturated fatty acids. Additionally, insulin responsiveness is increased as a result of decreased lipolytic activity in mesenteric adipose tissue.
JOURNAL OF PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Agriculture, Dairy & Animal Science
Georgios A. Papadopoulos, Alexandra L. Wealleans, Georgios A. Delis, Geert P. J. Janssens, Mauro di Benedetto, Paschalis Fortomaris
Summary: Supplementing with lysolecithin can improve litter weight at weaning without excessive catabolism of backfat tissue in sows. Lysolecithin supplementation can also improve nutrient digestion and absorption.
Article
Chemistry, Physical
Tian-Wei Song, Lu-Jie Zuo, Ming Zuo, Hai-Wei Liang
Summary: Atomically ordered intermetallic catalysts show better intrinsic activity than disordered alloy counterparts for oxygen-reduction reaction in proton-exchange-membrane fuel cells. However, traditional wet-impregnation method leads to larger particles and lower mass-based activity due to metal sintering during high-temperature annealing. In this study, we quantitatively analyze the particle size, alloying degree, and ordering degree of PtFe and PtCo catalysts with different synthesis conditions and carbon supports, and achieve optimal intermetallic PtFe catalysts with small particle size and high ordering degree. The optimal PtFe catalyst exhibits high mass activity in both half-cell and single-cell tests.
JOURNAL OF CATALYSIS
(2023)
Article
Agriculture, Dairy & Animal Science
Yakun Wang, Xiaoyou Hong, Xiaoli Liu, Wei Li, Chen Chen, Junxian Zhu, Chengqing Wei, Xinping Zhu, Lingyun Yu
Summary: We investigated the effects of maternal size on offspring size and number in Asian yellow pond turtles. Our results showed that maternal size significantly influenced the number of offspring but not their size. Offspring size was correlated with maternal age. These findings suggest that the offspring size-number trade-off theory does not apply to cultured Asian yellow pond turtles and provide valuable information for their breeding management.
Article
Computer Science, Information Systems
Zhi Li, Jiye Wang, Yang Wang, Sachula Meng, Sai Wu, Huixia Ding, Zhihui Wang
Summary: This paper introduces a research method on power service network slicing based on dynamic intelligent resource allocation to meet different QoS requirements. By modeling the throughput and latency of eMBB and uRLLC slice users, a mathematical model for maximizing eMBB slice throughput while ensuring uRLLC slice latency is established.
COMPUTER COMMUNICATIONS
(2021)
Article
Behavioral Sciences
Jeanne Clermont, Charline Couchoux, Sandra Lai, Dominique Berteaux
Summary: The relationship between boldness and reproductive success in Arctic foxes is influenced by the abundance of their main prey, lemmings. When lemmings are scarce, bold foxes have more pups, suggesting that boldness provides an advantage in hunting or accessing alternative resources. However, when lemmings are abundant, all foxes produce large litters, indicating that environmental conditions can affect the relationship between behavior and reproductive success in predators.
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
(2023)
Article
Evolutionary Biology
Marisa A. Rodrigues, Antoine Merckelbach, Esra Durmaz, Envel Kerdaffrec, Thomas Flatt
Summary: Research in fruit flies shows that ablating germ cells can increase the expression of immune genes and enhance the induction upon bacterial infection, suggesting that germline activity impedes the expression and inducibility of immune genes.
Article
Computer Science, Artificial Intelligence
Keyvan Kamandanipour, Reza Tavakkoli-Moghaddam, Siamak Haji Yakhchali
Summary: This paper focuses on the discrete time/resource trade-off problem (DTRTP) in the context of resource-constrained project scheduling. A mathematical model is presented for the DTRTP with renewable resource types, and a hybrid heuristic/meta-heuristic algorithm is proposed to solve the deterministic model. The proposed approach is evaluated using numerical examples and compared with existing optimization tools, showing promising results in terms of performance and handling uncertainty.
Article
Ecology
Viktor Thunell, Anna Gardmark, Magnus Huss, Yngvild Vindenes
Summary: Body size-dependent physiological effects of temperature influence individual growth, reproduction, and survival, which govern animal population responses to global warming. In this study, a dynamic energy budget integral projection model (DEB-IPM) was developed to investigate how warming affects the optimal energy allocation and adaptation of size-structured organisms. The results show that increasing temperature leads to a decrease in optimal energy allocation to growth and induces changes in body size and population structure.
Article
Computer Science, Hardware & Architecture
Solomon Abera, M. Balakrishnan, Anshul Kumar
Summary: Modern processors employ DVFS support for fine-grained control of performance and energy consumption, aiming to minimize battery consumption while limiting performance degradation within predefined limits.
ACM TRANSACTIONS ON ARCHITECTURE AND CODE OPTIMIZATION
(2021)
Article
Biochemistry & Molecular Biology
Mateusz Konczal, Karolina J. Przesmycka, Ryan S. Mohammed, Christoph Hahn, Jo Cable, Jacek Radwan
Summary: Hybridization plays a significant role in the success of parasites, with hybrid vigor potentially diluted by subsequent generations. A 'frozen hybrid' genotype has invaded natural populations of Gyrodactylus turnbulli, with surprisingly high nucleotide diversity discrepancies between Trinidad and Tobago. The presence of highly heterozygous hybrids on Tobago is maintained by clonal reproduction, suggesting a selective advantage compared to native genotypes.
Article
Biochemistry & Molecular Biology
Willow Smallbone, Amy Ellison, Simon Poulton, Cock van Oosterhout, Joanne Cable
Summary: The major histocompatibility complex (MHC) plays a crucial role in infectious disease resistance, with certain MHC alleles and supertypes associated with resistance to specific parasite species. Depletion of MHC diversity in farmed and domesticated fish leads to increased susceptibility to infections, where supertype delineation captures some, but not all, of the immune function variation among alleles.
Article
Parasitology
Mohamed Mohamed El-Naggar, Richard C. Tinsley, Jo Cable
Summary: Parasites undergo significant morphological, physiological, and behavioral changes in different life stages to adapt to changing habitats. This also applies to ectoparasites like monogeneans, with distinct variations in the timing of the switch from larvae to adult tegument. These findings demonstrate the complexity of morphological transitions in parasites within the Monogenea group.
PARASITOLOGY RESEARCH
(2021)
Article
Marine & Freshwater Biology
Joanna James, John R. Thomas, Alberto Maceda-Veiga, Robbie Mitchell, Ian P. Vaughan, Jo Cable
Summary: Invasive species' interactions can be affected by environmental factors such as nitrate levels, which may influence their foraging efficiency and competitive behaviors. In this study, elevated nitrate levels had varying impacts on two invasive crayfish species, suggesting potential changes in interactions and dynamics in sympatric regions.
Article
Biochemistry & Molecular Biology
Ximena A. Olarte-Castillo, Joana F. dos Remedios, Felix Heeger, Heribert Hofer, Stephan Karl, Alex D. Greenwood, Marion L. East
Summary: The study, based on long-term data and molecular analysis, revealed two outbreaks of Alphacoronavirus-1 infection in spotted hyenas associated with genetically distinct canine coronavirus type II variants. The residues directly binding to the APN receptor within the S protein receptor binding domain were conserved in all studied variants, even infecting phylogenetically diverse host taxa.
Article
Ecology
Susana C. M. Ferreira, Miguel M. Veiga, Heribert Hofer, Marion L. East, Gabor a. Czirjak
Summary: Research using noninvasive methods can enhance understanding of the complex relationship between gastrointestinal parasites and local immune responses in wild large mammals and reveal fitness-relevant effects of these responses. Concentrations of immunoglobulins and mucin in spotted hyena feces were associated with hookworm load, with higher concentrations in juveniles than adults, and more mucin in females than males.
ECOLOGY AND EVOLUTION
(2021)
Article
Ecology
Lucile Marescot, Mathias Franz, Sarah Benhaiem, Heribert Hofer, Cedric Scherer, Marion L. East, Stephanie Kramer-Schadt
Summary: The study indicates that in populations with communal nurseries, the probability of epidemic fade-out is higher for highly contagious pathogens, and communal nurseries can effectively counteract infection risk and play a key role in controlling pathogen transmission.
JOURNAL OF ANIMAL ECOLOGY
(2021)
Article
Ecology
Deniz Menguellueoglu, Sarah Edwards, Heribert Hofer, Anne Berger
Summary: A study of Eurasian lynx in northwestern Anatolia revealed a high population density, small home ranges, and flexible spatial behavior, likely due to legal protection and low levels of poaching. Adult male lynx occupied small territories, while subadult males roamed large, stable home ranges. This behavior is not commonly seen in other studied populations and highlights the importance of data from felid populations in natural states for conservation planning.
ECOLOGY AND EVOLUTION
(2021)
Article
Genetics & Heredity
Deniz Mengulluoglu, Huseyin Ambarli, Axel Barlow, Johanna L. A. Paijmans, Ali Onur Sayar, Hasan Emir, Irfan Kandemir, Heribert Hofer, Joerns Fickel, Daniel W. Foerster
Summary: The study conducted a systematic analysis of the mtDNA of Eurasian lynx, revealing three major clades and at least five lineages, indicating an earlier diversification of the species than previously estimated. The results suggest that the Anatolian peninsula served as a glacial refugium for the Eurasian lynx, with previously unconsidered implications for the species' colonization of Europe.
Article
Biodiversity Conservation
S. Benhaiem, S. Kaidatzi, H. Hofer, M. L. East
Summary: Extensive bushmeat hunting poses a major threat to wildlife conservation. The use of wire snares can result in sublethal snare injuries and potential reproductive costs for the affected individuals.
ANIMAL CONSERVATION
(2023)
Article
Biodiversity Conservation
Montan M. Kalyahe, Heribert Hofer, Marion L. East
Summary: The study investigates the relationship between livestock waste and predation on cattle, sheep, and goats by wild carnivores. The findings show that the likelihood of predation increases with the increase of waste from diseased and slaughtered cattle, and sheep deaths from starvation. However, the predation on goats is more likely in medium-sized villages, indicating a trade-off for predators between increased benefits of more livestock waste and the costs of higher human disturbance and diminishing natural prey abundance as village size category increases.
ENVIRONMENTAL CONSERVATION
(2022)
Editorial Material
Ecology
Walter Jetz, Grigori Tertitski, Roland Kays, Uschi Mueller, Martin Wikelski
Summary: Space-based tracking technology using low-cost miniature tags is providing fine-scale animal movement data at near-global scale. When combined with remotely sensed environmental data, it offers valuable insights into habitat integrity and connectivity for conservation and human health, creating a global network of animal sentinels for environmental change.
TRENDS IN ECOLOGY & EVOLUTION
(2022)
Article
Ecology
Marion L. East, Dagmar Thierer, Sarah Benhaiem, Sonja Metzger, Heribert Hofer
Summary: Infanticide by adult females significantly affects male reproductive success and generates sexual conflict. In spotted hyenas, female infanticide occurs through violent attacks and maternal neglect, and males do not have effective counterstrategies.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Ecology
Morgane Gicquel, Marion L. East, Heribert Hofer, Sarah Benhaiem
Summary: Studies have shown that encountering multiple sources of adversity in childhood increases the risk of poor long-term health and premature death. This study focuses on the spotted hyena and examines the cumulative effects of adversity during early life, including ecological, maternal, social, and demographic factors, on its performance and fitness. The results suggest that the combination of specific conditions in early life may matter more than the accumulation of adverse conditions as such.
JOURNAL OF ANIMAL ECOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Michaela Wetzel, Alexandre Courtiol, Heribert Hofer, Susanne Holtze, Thomas B. B. Hildebrandt
Summary: The study investigates the determinants of early offspring survival in the naked mole-rat, a eusocial mammal. Factors such as pup body mass, maternal number of mammae, maternal body mass, and colony size significantly influence early pup survival. The influence of social factors on offspring survival in eusocial mammals is different from eusocial insects due to the level of sociality. The study contributes to a better understanding of the origin and maintenance of eusociality in mammals.