Abstract:
:The theoretical optimal olfactory search strategy is to move cross-wind. Empirical evidence supporting wind-associated directionality among carnivores, however, is sparse. We examined satellite-linked telemetry movement data of adult female polar bears (Ursus maritimus) from Hudson Bay, Canada, in relation to modelled winds, in an effort to understand olfactory search for prey. In our results, the predicted cross-wind movement occurred most frequently at night during winter, the time when most hunting occurs, while downwind movement dominated during fast winds, which impede olfaction. Migration during sea ice freeze-up and break-up was also correlated with wind. A lack of orientation during summer, a period with few food resources, likely reflected reduced cross-wind search. Our findings represent the first quantitative description of anemotaxis, orientation to wind, for cross-wind search in a large carnivore. The methods are widely applicable to olfactory predators and their prey. We suggest windscapes be included as a habitat feature in habitat selection models for olfactory animals when evaluating what is considered available habitat.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Togunov RR,Derocher AE,Lunn NJdoi
10.1038/srep46332subject
Has Abstractpub_date
2017-04-12 00:00:00pages
46332issn
2045-2322pii
srep46332journal_volume
7pub_type
杂志文章abstract::A weakening of the gut mucous barrier permits an increase in the access of intestinal luminal contents to the epithelial cells, which will trigger the inflammatory response. In inflammatory bowel diseases, there is an inappropriate and ongoing activation of the immune system, possibly because the intestinal mucus is l...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep09577
更新日期:2015-05-14 00:00:00
abstract::Securin overexpression correlates with poor prognosis in various tumours. We have previously shown that securin depletion promotes radiation-induced senescence and enhances radiosensitivity in human cancer cells. However, the underlying molecular mechanisms and the paracrine effects remain unknown. In this study, we s...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep01675
更新日期:2013-01-01 00:00:00
abstract::Private Set Intersection Cardinality (PSI-CA) and Private Set Union Cardinality (PSU-CA) are two cryptographic primitives whereby two or more parties are able to obtain the cardinalities of the intersection and the union of their respective private sets, and the privacy of their sets is preserved. In this paper, we pr...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-77579-w
更新日期:2020-12-17 00:00:00
abstract::Freshwater mussels are ecosystem engineers and keystone species in aquatic environments. Unfortunately, due to dramatic declines this fauna is among the most threatened globally. Here, we clarify the taxonomy and biogeography of Russian Unionidae species based on the most comprehensive multi-locus dataset sampled to d...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-59867-7
更新日期:2020-02-20 00:00:00
abstract::The increasing antibiotic resistance evolved by Helicobacter pylori has alarmingly reduced the eradication rates of first-line therapies. To overcome the current circulating resistome, we selected a novel potential therapeutic target in order to identify new candidate drugs for treating H. pylori infection. We screene...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-47746-9
更新日期:2019-08-05 00:00:00
abstract::The movement protein VP37 of broad bean wilt virus 2 (BBWV 2) forms tubules in the plasmodesmata (PD) for the transport of virions between cells. This paper reports a mutual association between the BBWV 2 VP37-tubule complex and PD at the cytological level as determined by transmission electron microscopy. The generat...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep21552
更新日期:2016-02-23 00:00:00
abstract::In situ reduction of selenite to elemental selenium (Se(0)), by microorganisms in sediments and soils is an important process and greatly affects the environmental distribution and the biological effects of selenium. However, the mechanism behind such a biological process remains unrevealed yet. Here we use Shewanella...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep03735
更新日期:2014-01-17 00:00:00
abstract::The application of CLSI and EUCAST guidelines led to many discrepancies. Various doubts have already appeared in preliminary stages of microbiological diagnostics of Haemophilus spp. A total of 87 H. parainfluenzae isolates were obtained from throat or nasopharyngeal swabs from adults 18 to 70 years old, both healthy ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-68161-5
更新日期:2020-07-13 00:00:00
abstract::The non-invasive high-resolution spatial mapping of cell metabolism within tissues could provide substantial advancements in assessing the efficacy of stem cell therapy and understanding tissue development. Here, using two-photon excited fluorescence microscopy, we elucidate the relationships among endogenous cell flu...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep03432
更新日期:2013-12-05 00:00:00
abstract::Interactions between diverse species that coexist in nature are of utmost interest in the field of ecology. Recent theoretical studies have shown that spatiality plays a key role in maintaining complex systems with multiple differing species. In these models, however, organisms move among habitats randomly, implying t...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-49143-8
更新日期:2019-09-02 00:00:00
abstract::Viral latency remains the most significant obstacle to HIV eradication. Clinical strategies aim to purge the latent CD4+ T cell reservoir by activating viral expression to induce death, but are undercut by the inability to target latently infected cells. Here we explored the acute signaling response of latent HIV-infe...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-15532-0
更新日期:2017-11-23 00:00:00
abstract::Biomaterial development for tissue engineering applications is rapidly increasing but necessitates efficacy and safety testing prior to clinical application. Current in vitro and in vivo models hold a number of limitations, including expense, lack of correlation between animal models and human outcomes and the need to...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep32168
更新日期:2016-08-31 00:00:00
abstract::Wolfram syndrome (WS) is a rare neurodegenerative disorder that is mainly characterized by diabetes mellitus, optic nerve atrophy, deafness, and progressive brainstem degeneration. Treatment with GLP-1 receptor agonists has shown a promising anti-diabetic effect in WS treatment in both animal models and in human patie...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-52295-2
更新日期:2019-10-31 00:00:00
abstract::We propose an ultrathin metallic structure to produce frequency-selective spoof surface plasmon polaritons (SPPs) in the microwave and terahertz frequencies. Designed on a thin dielectric substrate, the ultrathin metallic structure is composed of two oppositely oriented single-side corrugated strips, which are coupled...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep08165
更新日期:2015-02-02 00:00:00
abstract::Melimine and Mel4 are chimeric cationic peptides with broad-spectrum antimicrobial activity. They have been shown to be highly biocompatible in animal models and human clinical trials. The current study examined the mechanism of action of these two antimicrobial peptides against P. aeruginosa. The effect of the peptid...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-42440-2
更新日期:2019-05-08 00:00:00
abstract::The exploration of intrinsically disordered proteins in isolation is a crucial step to understand their complex dynamical behavior. In particular, the emergence of partially ordered states has not been explored in depth. The experimental characterization of such partially ordered states remains elusive due to their tr...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-69322-2
更新日期:2020-07-24 00:00:00
abstract::It is known that patients with chronic obstructive pulmonary disease experience dyspnea during unsupported arm exercise (UAE). We examined the respiratory variables in during a hair-washing motion for healthy young people requiring the UAE to find the effects across gender, motion, and speed. In this study, 33 healthy...
journal_title:Scientific reports
pub_type: 临床试验,杂志文章
doi:10.1038/s41598-020-69945-5
更新日期:2020-08-04 00:00:00
abstract::Knockdown and mortality of adults of the red flour beetle, Tribolium castaneum (Herbst) and the confused flour beetle, Tribolium confusum Jacquelin du Val, were assessed after exposure to two contact insecticides, chlorfenapyr and cyfluthrin, on a concrete surface. Individuals were rated on a scale for knockdown of ex...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-78982-z
更新日期:2021-01-13 00:00:00
abstract::Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract of uncertain origin, which includes ulcerative colitis (UC) and Crohn's disease (CD). The composition of gut microbiota may change in IBD affected individuals, but whether dysbiosis is the cause or the consequence of infla...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-10034-5
更新日期:2017-08-25 00:00:00
abstract::Coronin7 (CRN7) stabilizes F-actin and is a regulator of processes associated with the actin cytoskeleton. Its loss leads to defects in phagocytosis, motility and development. It harbors a CRIB (Cdc42- and Rac-interactive binding) domain in each of its WD repeat domains which bind to Rac GTPases preferably in their GD...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep14437
更新日期:2015-09-28 00:00:00
abstract::Misfolding and aggregation of prion protein (PrP) causes neurodegenerative diseases like Creutzfeldt-Jakob disease (CJD) and scrapie. Besides the consensus that spontaneous conversion of normal cellular PrPC into misfolded and aggregating PrPSc is the central event in prion disease, an alternative hypothesis suggests ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-39213-2
更新日期:2019-02-21 00:00:00
abstract::The one-stage partial nitritation and anammox process (PN/A) has been a promising microbial process to remove ammonia from wastewater especially with low carbon/nitrogen ratio. The main breakdown was the deterioration caused by overgrowth of nitrite oxidizing bacteria (NOB) resulting effluent nitrate build-up in the P...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep37500
更新日期:2016-11-24 00:00:00
abstract::The mechanism by which enzymes arose from both abiotic and biological worlds remains an unsolved natural mystery. We postulate that an enzyme can emerge from any sequence of any functional polymer under permissive evolutionary conditions. To support this premise, we have arbitrarily chosen a 50-nucleotide DNA fragment...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep11405
更新日期:2015-06-19 00:00:00
abstract::This study aimed to develop and validate a model for the preoperative prediction of the effectiveness of hysteroscopic resection of a uterine cesarean niche in patients with postmenstrual spotting. The predictive model was developed in a primary prospective cohort consisting of 208 patients with niche treated by hyste...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-74622-8
更新日期:2020-10-15 00:00:00
abstract::In Eastern Boundary Current systems, wind-driven upwelling drives nutrient-rich water to the ocean surface, making these regions among the most productive on Earth. Regulation of productivity by changing wind and/or nutrient conditions can dramatically impact ecosystem functioning, though the mechanisms are not well u...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep27612
更新日期:2016-06-09 00:00:00
abstract::A green, facile and tunable pair electrochemical process was developed for the synthesis of new benzenesulfonamide derivatives by using reductive controlled potential electrolysis of dinitrobenzene (DNB) in the presence of arylsulfinic acids (ASAs). In addition to the usual features associated with paired electrochemi...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-38544-4
更新日期:2019-03-14 00:00:00
abstract::Type IV secretion systems are multiprotein complexes that mediate the translocation of macromolecules across the bacterial cell envelope. In Helicobacter pylori a type IV secretion system encoded by the cag pathogenicity island encodes 27 proteins and most are essential for virulence. We here present the identificatio...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-42876-6
更新日期:2019-04-24 00:00:00
abstract::Ruminants obtain nutrients from microbial fermentation of plant material, primarily in their rumen, a multilayered forestomach. How the different layers of the rumen wall respond to diet and influence microbial fermentation, and how these process are regulated, is not well understood. Gene expression correlation netwo...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep39022
更新日期:2016-12-14 00:00:00
abstract::Umami taste perception indicates the presence of amino acids, which are essential nutrients. Although the physiology of umami perception has been described in mammals, how insects detect amino acids remains unknown except in Drosophila melanogaster. We functionally characterized a gustatory receptor responding to L-am...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-46738-z
更新日期:2019-08-12 00:00:00
abstract::Lithium vanadium phosphate (Li3V2(PO4)3, LVP)/reduced graphene oxide (rGO) composite is prepared with a rheological method followed by heat treatment. The size and interface of LVP particles, two important merits for a cathode material, can be effectively tuned by the rGO in the composite, which plays as surfactant to...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep05768
更新日期:2014-08-29 00:00:00