Abstract:
:Dendrobium is the largest genus of orchids most of which have excellent medicinal properties. Fresh stems of some species have been consumed in daily life by Asians for thousands of years. However, there are differences in flavour and clinical efficacy among different species. Therefore, it is necessary for a detector to establish an effective and rapid method controlling botanical origins of these crude materials. In our study, three spectroscopies including mid-infrared (MIR) (transmission and reflection mode) and near-infrared (NIR) spectra were investigated for authentication of 12 Dendrobium species. Generally, two fusion strategies, reflection MIR and NIR spectra, were combined with three mathematical models (random forest, support vector machine with grid search (SVM-GS) and partial least-squares discrimination analysis (PLS-DA)) for discrimination analysis. In conclusion, a low-level fusion strategy comprising two spectra after pretreated by the second derivative and multiplicative scatter correction was recommended for discrimination analysis because of its excellent performance in three models. Compared with MIR spectra, NIR spectra were more responsible for the discrimination according to a bi-plot analysis of PLS-DA. Moreover, SVM-GS and PLS-DA were suitable for accurate discrimination (100% accuracy rates) of calibration and validation sets. The protocol combined with low-level fusion strategy and chemometrics provides a rapid and effective reference for control of botanical origins in crude Dendrobium materials.
journal_name
R Soc Open Scijournal_title
Royal Society open scienceauthors
Wang Y,Zuo ZT,Huang HY,Wang YZdoi
10.1098/rsos.190399subject
Has Abstractpub_date
2019-05-22 00:00:00pages
190399issue
5issn
2054-5703pii
rsos190399journal_volume
6pub_type
杂志文章abstract::Smoking is associated with shorter leucocyte telomere length (LTL), a biomarker of increased morbidity and reduced longevity. This association is widely interpreted as evidence that smoking causes accelerated LTL attrition in adulthood, but the evidence for this is inconsistent. We analysed the association between smo...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.190420
更新日期:2019-06-05 00:00:00
abstract::In 1665, Huygens observed that two identical pendulum clocks, weakly coupled through a heavy beam, soon synchronized with the same period and amplitude but with the two pendula swinging in opposite directions. This behaviour is now called anti-phase synchronization. This paper presents an analysis of the behaviour of ...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.170777
更新日期:2017-09-06 00:00:00
abstract::When addressing their young infants, parents systematically modify their speech. Such infant-directed speech (IDS) contains exaggerated vowel formants, which have been proposed to foster language development via articulation of more distinct speech sounds. Here, this assumption is rigorously tested using both acoustic...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.170306
更新日期:2017-08-02 00:00:00
abstract::Bears produce the most altricial neonates of any placental mammal. We hypothesized that the transition from colostrum to mature milk in bears reflects a temporal and biochemical adaptation for altricial development and immune protection. Comparison of bear milks with milks of other eutherians yielded distinctive prote...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.150395
更新日期:2015-10-21 00:00:00
abstract::The morphology and ultrastructure of the shells of two balanid species have been examined, paying special attention to the three types of boundaries between plates: (i) radii-parietes, (ii) alae-sheaths, and (iii) parietes-basal plate. At the carinal surfaces of the radii and at the rostral surfaces of the alae, there...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.190458
更新日期:2019-09-04 00:00:00
abstract::Real-world complex networks are composed of non-random quantitative interactions. Identifying communities of nodes that tend to interact more with each other than the network as a whole is a key research focus across multiple disciplines, yet many community detection algorithms only use information about the presence ...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.140536
更新日期:2016-01-20 00:00:00
abstract::Wetlands provide important ecosystem services to rural communities. However, wetlands are often on communal land, so they may become degraded when individual users act to maximize their personal benefit from ecosystem services without bearing the full environmental costs of their actions. Although it is possible to ma...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.181770
更新日期:2019-06-12 00:00:00
abstract::A shift-periodic map is a one-dimensional map from the real line to itself which is periodic up to a linear translation and allowed to have singularities. It is shown that iterative sequences xn+1 = F(x n ) generated by such maps display rich dynamical behaviour. The intege...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.191423
更新日期:2019-11-27 00:00:00
abstract::Racing pigeons are exposed to and act as carriers of diseases. Dietary protein requirement for their maintenance has not been determined experimentally despite their being domesticated for over 7000 years. A maintenance nitrogen (protein) requirement (MNR) for pigeons was determined in a balance study using diets cont...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.150408
更新日期:2016-03-23 00:00:00
abstract::Determining the tempo and mode of non-avian dinosaur extinction is one of the most contentious issues in palaeobiology. Extensive disagreements remain over whether their extinction was catastrophic and geologically instantaneous or the culmination of long-term evolutionary trends. These conflicts have arisen due to nu...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.201195
更新日期:2020-11-18 00:00:00
abstract::A novel alkyl lithium-based initiator with relatively large steric hindrance, tert-butyldimethylsiloxydimethylpropyl lithium (TBDMSODPrLi), was designed and synthesized. By using TBDMSODPrLi, hydroxyl-terminated polybutadiene (HTPB) was prepared via anionic polymerization. The macromolecular structure of HTPB was char...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.180156
更新日期:2018-05-30 00:00:00
abstract::In this study, enzymatic hydrolysis and cationization with epoxypropyldodecyldimethylammonium chloride of wheat protein, an economic protein complex containing great amount of disulfide bonds, were conducted to improve properties such as solubility and disassociation behaviour for recovery of damaged hair when used in...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.171216
更新日期:2018-02-07 00:00:00
abstract::This paper presents a study of lead zirconate titanate (PZT) films hydrothermally grown on a dome-shaped titanium diaphragm. Few articles in the literature address the implementation of hydrothermal PZT films on curved-diaphragm substrates for resonators. In this study, a 50-μm-thick titanium sheet is embossed using b...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.171363
更新日期:2017-12-20 00:00:00
abstract::[This corrects the article DOI: 10.1098/rsos.181113.]. ...
journal_title:Royal Society open science
pub_type: 杂志文章,已发布勘误
doi:10.1098/rsos.190045
更新日期:2019-01-30 00:00:00
abstract::[This corrects the article DOI: 10.1098/rsos.191444.]. ...
journal_title:Royal Society open science
pub_type: 已发布勘误
doi:10.1098/rsos.192176
更新日期:2020-01-22 00:00:00
abstract::In this work, teams of small mobile robots are used to test hypotheses about cooperative transport by ants. This study attempts to explain a decrease in steady-state transport speed with increasing team size that was previously observed in the ant Novomessor cockerelli. Two models of one-dimensional collective towing ...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.180409
更新日期:2018-10-17 00:00:00
abstract::Giraffidae are represented by many extinct species. The only two extant taxa possess diametrically contrasting cervical morphology, as the okapi is short-necked and the giraffe is exceptionally long-necked. Samotherium major, known from the Late Miocene of Samos in Greece and other Eurasian localities, is a key extinc...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.150521
更新日期:2015-11-25 00:00:00
abstract::In this study, salting-out assisted liquid-liquid extraction (SALLE) as a simple and efficient extraction technique followed by high-performance liquid chromatography (HPLC) was employed for the determination of vitamin D3 in milk samples. The sample treatment is based on the use of water-miscible acetonitrile as the ...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.190952
更新日期:2019-08-21 00:00:00
abstract::This investigation establishes a system of gold nanoparticles that show good colloidal stability as an X-ray computed tomography (XCT) contrast agent under soil conditions. Gold nanoparticles offer numerous beneficial traits for experiments in biology including: comparatively minimal phytotoxicity, X-ray attenuation o...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.190769
更新日期:2019-10-16 00:00:00
abstract::A series of ordered mesoporous silica such as MCM-41, SBA-3 and SBA-15, in addition to silica micro- (SM) and nano- (SN) mesoporous particles, were prepared. The preparation conditions were found to greatly influence the physical-surface properties including morphological structure, porosity, particle size, aggregate ...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.172021
更新日期:2018-03-14 00:00:00
abstract::During the Middle and Late Jurassic, pliosaurid plesiosaurs evolved gigantic body size and a series of craniodental adaptations that have been linked to the occupation of an apex predator niche. Cretaceous pliosaurids (i.e. Brachaucheninae) depart from this morphology, being slightly smaller and lacking the macrophago...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.150552
更新日期:2015-12-23 00:00:00
abstract::A global response function (GRF) of an elastic network is introduced as a generalization of the response function (RF) of a rigid network, relating the average flow along the network with the pressure difference at its extremes. The GRF can be used to explore the frequency behaviour of a fluid confined in a tree-like ...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.190661
更新日期:2019-09-25 00:00:00
abstract::Animals are predicted to selectively observe and learn from the conspecifics with whom they share social connections. Yet, hardly anything is known about the role of different connections in observation and learning. To address the relationships between social connections, observation and learning, we investigated tra...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.160256
更新日期:2016-07-13 00:00:00
abstract::Cooperation behaviour is an important topic in society as well as in the biological field, and many factors yield cooperation. Many social phenomena constitute Stackelberg games, but there is little literature on the relationship between Stackelberg games and cooperation. This article shows that in the repeated dynami...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.190251
更新日期:2019-07-10 00:00:00
abstract::[This corrects the article DOI: 10.1098/rsos.140292.]. ...
journal_title:Royal Society open science
pub_type: 已发布勘误
doi:10.1098/rsos.150193
更新日期:2015-06-03 00:00:00
abstract::There is increasing evidence that whale and dolphin watching activities have detrimental effects on targeted cetacean populations. In Egypt, spinner dolphins regularly occur in the resting areas of Samadai, Satayah and Qubbat'Isa reefs. In-water human interactions with dolphins are regulated with a time-area closure s...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.172044
更新日期:2018-04-25 00:00:00
abstract::In both prokaryotic and eukaryotic genomes, synonymous codons are unevenly used. Such differential usage of optimal or non-optimal codons has been suggested to play a role in the control of translation initiation and elongation, as well as at the level of transcription and mRNA stability. In the case of membrane prote...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.190773
更新日期:2019-11-13 00:00:00
abstract::Many scientists communicate with the public about risks associated with scientific issues, but such communication may have unintended consequences for how the public views the political orientations and the credibility of the communicating scientist. We explore this possibility using an experiment with a nationally re...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.170505
更新日期:2018-02-21 00:00:00
abstract::Some species of criocerine beetles have a hyper-elongated part of the intromittent organ called a flagellum. In resting position, the flagellum is stored in a specialized internal sac in the intromittent organ. This specialized state of the flagellum and internal sac is indispensable during copulation for flagellar in...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.161029
更新日期:2017-08-09 00:00:00
abstract::Studying animal cognition is meaningful because it helps us understand how animals adapt to the natural environment. Many birds build nests, clean their nests and reject foreign objects from their nests, which provide an optimal opportunity for studying their cognition toward foreign objects in nests. However, hand-ma...
journal_title:Royal Society open science
pub_type: 杂志文章
doi:10.1098/rsos.181938
更新日期:2019-05-15 00:00:00