Abstract：
:Some ant species have multiple worker castes that differ in body size; workers in one caste remain in the colony and those in the other forage outside the colony (caste polyethism). In other species, all workers engage in both tasks, but the younger workers remain in the colony and the older workers forage (age polyethism). Here, we ask which of these two is the most efficient for colony level performance when foragers suffer a higher daily mortality than workers in the colony and when the optimal worker size differs between two tasks. We studied two models: in the stationary colony model, the colony size and composition remain constant, and the amount of excess resources that can be used for producing reproductive individuals is maximized; in the growing colony model, all of the resources obtained are used for producing new workers, and the rate of the colony growth is maximized. In both models, we observed similar results: caste polyethism is more advantageous than age polyethism if the difference in mortality between the two tasks is small and the difference in the optimal size is large. In the opposite situation, the age polyethism is more advantageous.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Iwasa Y,Yamaguchi Sdoi
10.1038/s41598-020-59920-5subject
Has Abstractpub_date
2020-02-24 00:00:00pages
3339issue
1issn
2045-2322pii
10.1038/s41598-020-59920-5journal_volume
10pub_type
杂志文章abstract：:Systemic Sclerosis (SSc) is a disease with limited therapeutic possibilities. Mesenchymal stem cells (MSCs)-therapy could be a promising therapeutic option, however the ideal MSCs source has not yet been found. To address this problem, we perform comparison between bone marrow (BM)-MSCs and adipose (A)-MSCs, by the mi...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-43638-0
更新日期：2019-05-09 00:00:00
abstract：:Aluminium alloys are re-evaluated as most feasible way to satisfy the industrial needs of light-weight structural materials. However, unlike conventional structural metals such as iron and titanium, aluminium does not have easily accessible secondary phases, which means that aluminium-based alloys cannot be strengthen...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-58834-6
更新日期：2020-04-06 00:00:00
abstract：:There is considerable interest in how early life experiences shape behavioural development. For example, the socialisation of unfamiliar pigs pre-weaning has been suggested to decrease aggression during later life. However, the behavioural mechanisms behind this socialisation effect remain unexplored. We allowed 12 li...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-40980-1
更新日期：2019-03-12 00:00:00
abstract：:High frequency repetitive transcranial magnetic stimulation (HF-rTMS) over the left dorsolateral prefrontal cortex (L-DLPFC) is a widely applied treatment protocol for chronic smoking and major depressive disorder. However, no previous study has measured the effects of rTMS on both nicotine consumption and anxiety/dep...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-80927-5
更新日期：2021-01-15 00:00:00
abstract：:Tea plant is a typical fluorine (F) accumulator. F concentration in mature tea leaves is several hundred times higher than that in normal field crops. Long-term consumption of teas with high level F will increase the risks of dental and skeletal fluorosis. The mechanism of F accumulation in tea stands unclear. RNA-Seq...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-08587-6
更新日期：2017-08-29 00:00:00
abstract：:It is possible to accurately and economically predict change in protein-protein interaction energy upon mutation (ΔΔG), when a high-resolution structure of the complex is available. This is of growing usefulness for design of high-affinity or otherwise modified binding proteins for therapeutic, diagnostic, industrial,...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep25406
更新日期：2016-05-13 00:00:00
abstract：:The human pathogen Legionella pneumophila delivers a large array of the effector proteins into host cells using the Dot/Icm type IVB secretion system. Among the proteins composing the Dot/Icm system, an inner membrane protein DotI is known to be crucial for the secretion function but its structure and role in type IV ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep10912
更新日期：2015-06-03 00:00:00
abstract：:Hbs1, which is homologous to the GTPase eRF3, is a small G protein implicated in mRNA quality control. It interacts with a translation-release factor 1-like protein Dom34/Pelota to direct decay of mRNAs with ribosomal stalls. Although both proteins are evolutionarily conserved in eukaryotes, the biological function of...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-39530-6
更新日期：2019-03-01 00:00:00
abstract：:There has been a developing technology in algae with pharmaceuticals wastewater. However, the effect and the underlying mechanism of pharmaceuticals on algae are not well understood. To investigate the effect and mechanism of pharmaceuticalson microalgae, four pharmaceuticals of clofibric acid (CLF), ciprofloxacin (CI...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-36609-4
更新日期：2019-02-07 00:00:00
abstract：:Automated vehicles (AVs) will change the role of the driver, from actively controlling the vehicle to primarily monitoring it. Removing the driver from the control loop could fundamentally change the way that drivers sample visual information from the scene, and in particular, alter the gaze patterns generated when un...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-80126-2
更新日期：2021-01-08 00:00:00
abstract：:We identify a new instability in electrostatic actuators dubbed quasi-static pull-in. We report experimental evidence of the instability and study its characteristics in two types of micro actuators operating in ambient air. We found that the underlying mechanism is a fast-slow dynamic interaction between slowly-varyi...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-61534-w
更新日期：2020-03-19 00:00:00
abstract：:Sex hormones may have a role in the pathophysiology of substance use disorders, as demonstrated by the association between testosterone and addictive behaviour in opioid dependence. Although opioid use has been found to suppress testosterone levels in men and women, the extent of this effect and how it relates to meth...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep06189
更新日期：2014-08-26 00:00:00
abstract：:An amendment to this paper has been published and can be accessed via a link at the top of the paper. ...
journal_title：Scientific reports
pub_type： 已发布勘误
doi：10.1038/s41598-020-60910-w
更新日期：2020-02-28 00:00:00
abstract：:MicroRNAs (miRNAs) have been considered to be potent biomarkers for early disease diagnosis and for cancer therapy. The rapid and selective detection of miRNAs without reverse transcription and labelling is highly desired. Herein, we report a simple and label-free miRNA detection method that is based on the Duplex-Spe...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep07400
更新日期：2014-12-10 00:00:00
abstract：:During recent military operations, eye-related injuries have risen in frequency due to increased use of explosive weaponry which often result in corneal puncture injuries. These have one of the poorest visual outcomes for wounded soldiers, often resulting in blindness due to the large variations in injury shape, size,...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-61079-y
更新日期：2020-03-06 00:00:00
abstract：:Emotional expressions of others are salient biological stimuli that automatically capture attention and prepare us for action. We investigated the early cortical dynamics of automatic visual discrimination of fearful body expressions by monitoring cortical activity using magnetoencephalography. We show that right pari...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep24831
更新日期：2016-04-20 00:00:00
abstract：:This paper presents an ultracompact tunable device for power splitting and switching by tuning the Fermi energy level of monolayer patternless graphene underneath a slotted multimode interference (MMI) coupler operating in the mid-infrared, λ = 9-11 μm. By introducing a high-index silicon slot in the central region of...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-49186-x
更新日期：2019-09-04 00:00:00
abstract：:Prenatal stress is known to epigenetically program offspring physiology and behaviour, and may become a risk factor for adult complex diseases. To gain insight into the underlying environment-gene interactions, we used proton nuclear magnetic resonance spectroscopy to analyze urinary metabolomes of male and female ado...
journal_title：Scientific reports
pub_type： 临床试验,杂志文章
doi：10.1038/s41598-018-31230-x
更新日期：2018-08-28 00:00:00
abstract：:We demonstrate a label-free imaging approach to study cardiac remodeling of fibrotic and hypertrophic hearts, bridging scales from the whole organ down to the molecular level. To this end, we have used mice subjected to transverse aortic constriction and imaged adjacent cardiac tissue sections by microfocus X-ray diff...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-76163-6
更新日期：2020-11-09 00:00:00
abstract：:Photonic crystal materials are based on a periodic modulation of the dielectric constant on length scales comparable to the wavelength of light. These materials can exhibit photonic band gaps; frequency regions for which the propagation of electromagnetic radiation is forbidden due to the depletion of the density of s...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep21818
更新日期：2016-02-25 00:00:00
abstract：:Cells harboring latent HIV-1 pose a major obstacle to eradication of the virus. The 'shock and kill' strategy has been broadly explored to purge the latent reservoir; however, none of the current latency-reversing agents (LRAs) can safely and effectively activate the latent virus in patients. In this study, we report ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-07157-0
更新日期：2017-08-25 00:00:00
abstract：:Discovery of novel biomarkers is critical for early diagnosis of acute coronary syndrome (ACS). Serum metabolite profiling of ST-elevation myocardial infarction (STEMI), unstable angina (UA) and healthy controls was performed using gas chromatography mass spectrometry (GC/MS), solid-phase microextraction coupled to ga...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep36359
更新日期：2016-11-08 00:00:00
abstract：:Computational studies considering both thermodynamic and kinetic aspects revealed that graphyne, a carbon material that has recently been of increasing interest, favours unprecedented homogeneous "in-plane" addition reactions. The addition of dichlorocarbene to the C(sp)-C(sp) bond, a site with outstanding regioselect...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep01271
更新日期：2013-01-01 00:00:00
abstract：:Coastal zones constitute one of the most heavily populated and developed land zones in the world. Despite the utility and economic benefits that coasts provide, there is no reliable global-scale assessment of historical shoreline change trends. Here, via the use of freely available optical satellite images captured si...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-018-24630-6
更新日期：2018-04-27 00:00:00
abstract：:In arid and semiarid regions, low precipitation rates lead to soil salinity problems, which may limit plant establishment, growth, and survival. Herein, we investigated the NaCl stress effect on chlorophyll fluorescence, photosynthetic-pigments, movement and chloroplasts ultrastructure in chlorenchyma cells of Opuntia...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-08744-x
更新日期：2017-08-17 00:00:00
abstract：:The endoplasmic reticulum (ER) is a multi functional organelle and plays a crucial role in protein folding and lipid biosynthesis. The SEC59 gene encodes dolichol kinase, required for protein glycosylation in the ER. The mutation of sec59-1 caused a protein N-glycosylation defect mediated ER stress resulting in increa...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-51054-7
更新日期：2019-10-09 00:00:00
abstract：:A mathematical model has been developed to examine the magneto hydrodynamic micropolar nanofluid flow with buoyancy effects. Flow analysis is carried out in the presence of nonlinear thermal radiation and dual stratification. The impact of binary chemical reaction with Arrhenius activation energy is also considered. A...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-13140-6
更新日期：2017-10-10 00:00:00
abstract：:It is well known that collective migrations of oxygen vacancies in oxide is the key principle of resistance change in oxide-based resistive memory (OxRAM). The practical usefulness of OxRAM mainly arises from the fact that these oxygen vacancy migrations take place at relatively low operating voltages. The activation ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-53498-3
更新日期：2019-11-19 00:00:00
abstract：:Aging-associated decrease in internal anal sphincter (IAS) tone (AADI) is a major contributor in the rectoanal incontinence (RI). To determine the pathogenesis of AADI, we investigated the effect of aging on GPCR activation and related downstream signaling. We particularly investigated two GPCRs that characterize IAS ...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-42894-4
更新日期：2019-05-01 00:00:00
abstract：:Turner syndrome (TS) is associated with decreased bone mineral density and increased fracture rate. However, the developmental trajectory of bone density or body composition in patients with TS is still unclear. The present study tested the hypothesis that different karyotypes and/or age contributes to abnormal body c...
journal_title：Scientific reports
pub_type： 临床试验,杂志文章
doi：10.1038/srep38026
更新日期：2016-11-30 00:00:00
