bluuebunny/crossref_metadata_2025_split huggingface dataset:
Flash self‐joining of Y‐TZP ceramics assisted with an AC electric field
Authors: Nambu Kohta , Kitaoka Taisuke , Morita Koji , Soga Kohei , Tokunaga Tomoharu , Yamamoto Takahisa , Masuda Hiroshi , Yoshida Hidehiro 
Published: November 2022

AbstractIn this study, flash joining experiments were conducted using an AC field on 3 mol% Y2O3‐stabilized tetragonal ZrO2 polycrystal (Y‐TZP) bodies. Furthermore, the necessary conditions to obtain an almost complete self‐joining of Y‐TZP bodies were clarified. The specimens were successfully joined by applying an AC field at 60 mA mm−2 for 80 s at a furnace temperature of 1000°C, thus resulting in a successfully joined specimen with 92% of the flexural strength of the as‐sintered Y‐TZP body. Almost complete self‐joining of Y‐TZP was achieved at current densities above 30 mA mm−2, and input energy densities of >24 J mm−3. Both the input energy density and electric current were critical factors for producing the reliable joining of ceramics.
Crystal structure, Raman spectra, and modified dielectric properties of pure‐phase ZnZrNb2O8 ceramics at low temperature
Authors: Wang Gang , Chen Zhipeng , Yan Hui , Xuan Tao , Wu Mengyan , Zhu Xue , Ding Tong , Ding Li , Ren Xingang , Wu Xianliang , Zhang Huaiwu 
Published: November 2022

AbstractLow‐temperature co‐fired ceramics technology (LTCC) exhibits enormous superiorities in packaging, integration, and interconnection. However, the complex compositions of low‐melting point sintering aids may react with ceramic matrix, which increases the difficulties of phase control and tape casting. In this work, the Li2CO3–B2O3–Bi2O3–SiO2 (LBBS) sintering aid was adopted to sinter ZnZrNb2O8 ceramics with single phase at low temperatures. The LBBS glass could be used to fabricate pure‐phase ZnZrNb2O8 ceramics at a low sintering temperature, promote the grain growth, and increase the densification of ZnZrNb2O8 ceramics. Furthermore, the unit cell volume, NbO6 octahedral distortion, Raman shift, and FWHM changed along with LBBS addition, thereby affecting the microwave dielectric properties. Remarkably, ZnZrNb2O8 ceramics doped with 0.75 wt.% LBBS at 950°C were chemically compatible with the silver electrode and exhibited excellent microwave dielectric characteristics: εr = 27.1, Q × f = 54 500 GHz, and τf = −48.7 ppm/°C, providing candidates for LTCC applications.
Orange‐emitting MgO–(Sr,Ba)3SiO5:Eu composite phosphor ceramics for turn signals and warm white laser lighting
Authors: Peng Xinglin , Li Shuxing , Zhang Buhao , Tian Rundong , Yao Xiumin , Huang Zhengren , Xie Rong‐Jun , Liu Xuejian 
Published: November 2022

AbstractThe research and development of orange‐emitting phosphor ceramics with excellent performance are significant for improving the optical quality of laser lighting and developing‐related emerging applications. For the first time, we prepared an orange‐emitting MgO–(Sr,Ba)3SiO5:Eu composite phosphor ceramic with high thermal conductivity, high thermal stability, and excellent luminescence properties. The thermal conductivity of the phosphor ceramic is as high as 32 W/(m K), and the luminescence intensity decreases by only 20% at 200°C, both of which are better than other orange‐emitting phosphor ceramics reported so far. The luminous efficacy of the phosphor ceramic (41.6 lm/W) is also close to the highest value of orange‐emitting phosphor ceramics until now. In addition, we also explored the application prospects of the composite phosphor ceramics in automotive turn signals and warm white laser lighting. This work provides inspiration for the preparation of other excellent orange‐emitting phosphor ceramics in the future.
Do endemic mushrooms on oceanic islands and archipelagos support the theory of island biogeography?
Authors: Stallman Jeffery K. , Robinson Kyra , Knope Matthew L. 
Published: November 2022

AbstractAimTerrestrial plant species on islands have a long history of study to determine how they evolved and what explains their levels of endemicity, but studies on fungi are lacking. Here, we examine: (1) how percent endemism of non‐lichenized class Agaricomycetes; hereafter, ‘mushrooms’ compares to angiosperms, ferns, bryophytes and lichens from oceanic islands/archipelagos; (2) whether endemic mushrooms evolved from an ancestor diversifying into multiple species after island colonization (cladogenesis) or over time evolved into a single endemic species unique from its ancestral mainland counterpart (anagenesis); and (3) if mushroom percent endemism and cladogenesis are correlated to geographic variables that help explain these phenomena in other species groups.LocationHawaiʻi, Galápagos, Canary Islands, Madeira, Azores, Cabo Verde, Christmas Island.TaxonMushrooms, angiosperms, ferns, bryophytes, lichens.MethodsChecklists of mushrooms and other species groups from seven oceanic islands/archipelagos were compared. Having multiple endemic congeners from a single island/archipelago was used to infer cladogenesis versus anagenesis in endemic mushrooms. Pearson's correlation coefficients were calculated between an island/archipelago's percent endemism and percent cladogenesis, and their distance to the nearest mainland, area, maximum elevation and latitude from the equator.ResultsHawaiʻi has the highest mushroom endemicity at 83%, of which 50% are potentially derived from cladogenesis. Considering mushrooms on all islands/archipelagos, speciation by cladogenesis leads to fewer endemic species (37%) than anagenesis (63%). We find positive and statistically significant relationships between distance to mainland and island area with percent endemism among mushrooms, and cladogenesis is positively and significantly correlated with island size and maximum elevation.Main conclusionsMushrooms show greater percent endemism on larger, more isolated islands/archipelagos. However, they display the lowest percent species derived from cladogenesis among the organismal groups examined. Both the lack of data and unreliability of data are impediments to studying fungal endemism on islands, making drawing decisive conclusions challenging.
Larval stages of the Antarctic dragonfish Akarotaxis nudiceps (Waite, 1916), with comments on the larvae of the morphologically similar species Prionodraco evansii Regan 1914 (Notothenioidei: Bathydraconidae)
Authors: Corso Andrew D. , McDowell Jan R. , Biesack Ellen E. , Muffelman Sarah C. , Hilton Eric J. 
Published: November 2022

AbstractThe notothenioid family Bathydraconidae is a poorly understood family of fishes endemic to the Southern Ocean. There is especially little information on Akarotaxis nudiceps, one of the deepest‐dwelling and least fecund bathydraconid species. Using genetic and morphological data, we document and describe the larval stages of this unique species, offer a novel characteristic to distinguish it from the morphologically similar bathydraconid Prionodraco evansii and use the sampling locations to infer a possible spawning area of A. nudiceps along the western Antarctic Peninsula. These results provide important baseline information for locating, identifying and studying the biology of A. nudiceps, an important component of the Southern Ocean ecosystem.
Detection of the threatened snail darter Percina tanasi in the Tennessee River system using environmental DNA
Authors: Shollenberger Kurtis R. , Janosik Alexis M. , Johnston Carol 
Published: November 2022

AbstractThe distribution of many fishes that occupy large rivers is poorly known, in part due to the difficulties of sampling for them. This is especially true for small‐bodied or rare species, such as the snail darter Percina tanasi, 44, 469–488; 1976). This federally listed (threatened) species has a limited distribution in the Tennessee River system in Alabama and Tennessee, where it is known from a few large tributaries or small rivers. In Alabama, P. tanasi was previously known from only one locality, but has recently been found in two additional, widely separated systems. These new records raise questions regarding the accuracy of our current understanding of the range for this species. Particularly, is P. tanasi present throughout the main stem Tennessee River, and is this species dispersing into new areas from source populations in the river? To clarify the distribution of P. tanasi in Alabama, 83 unique sites were surveyed using environmental DNA analysis. This cost‐effective detection tool reduces the difficulty associated with empirically sampling large rivers for small fishes. Approximately 42% of sites sampled were positive for P. tanasi DNA. This study confirmed the known localities of P. tanasi in the Bear Creek, Elk River and Paint Rock River. Several new localities were also discovered throughout the main stem Tennessee River and in Shoal Creek, near Florence, Alabama. These findings can inform biologists about where to prioritize conservation efforts and further could lead to studies assessing movement and relatedness between populations in this system.
Retinal development and the expression profiles of opsin genes during larval development in Takifugu rubripes
Authors: Zhang Qi , Wu Yumeng , Li Weiyuan , Wang Jia , Zhou Huiting , Zhang Lei , Liu Qi , Ying Liu , Yan Hongwei 
Published: November 2022

AbstractThe light‐sensitive capacity of fish larvae is determined by the structure of the retina and the opsins expressed in the retinal and nonretinal photoreceptors. In this study, the retinal structure and expression of opsin genes during the early developmental stage of Takifugu rubripes larvae were investigated. Histological examination showed that at 1 days after hatching (dah), seven layers were observed in the retina of T. rubripes larva, including the pigment epithelial layer [retinal pigment epithelium layer (RPE)], photoreceptor layer (PRos/is), outer nuclear layer (ONL), outer plexiform layer (OPL), inner nuclear layer (INL), inner plexiform layer (IPL) and ganglion cell layer (GCL). At 2 dah, optic fibre layer (OFL) can be observed, and all eight layers were visible in the retina. By measuring the thickness of each layer, opposing developmental trends were found in the thickness of ONL, OPL, INL, IPL, GCL and OFL. The nuclear density of ONL, INL and GCL and the ratios of ONL/INL, ONL/GCL and INL/GCL were also measured and the ratio of ONL/GCL ranged from 1.9 at 2 dah to 3.4 at 8 dah and no significant difference was observed between the different developmental stages (P > 0.05). No significant difference was observed for the INL/GCL ratio between the different developmental stages, which ranged from 1.2 at 2 dah to 2.0 at 18 dah (P > 0.05). The results of quantitative real‐time polymerase chain reaction (PCR) showed that the expression of RH1, LWS, RH2‐1, RH2‐2, SWS2, rod opsin, opsin3 and opsin5 could be detected from 1 dah. These results suggest that the well‐developed retina and early expression of the opsins of T. rubripes during the period of transition from endogenous to mixed feeding might be critical for vision‐based survival skills during the early life stages after hatching.
The density of hepatic autonomic innervation differs between compensatory and direct hyperplasia rat models
Authors: Trucas Marcello , Kowalik Marta Anna , Boi Marianna , Serra Maria Pina , Perra Andrea , Quartu Marina 
Published: November 2022

AbstractTo contribute to the knowledge of the autonomic innervation in liver regeneration, here we investigate the distribution of tyrosine hydroxylase (TH)‐ and choline acetyltransferase (ChAT)‐like immunoreactive (LI) nerve fibers, to indicate noradrenergic and cholinergic nerves, respectively, in rats under different conditions of liver damage and repair. By immunohistochemistry and assessment of nerve fiber density, three models of induced hepatic regeneration were examined: the carbon tetrachloride (CCl4) intoxication, with two treatment periods of 14 weeks and 18 weeks; the partial hepatectomy (PH); the thyroid hormone (T3) treatment. TH‐ and ChAT‐LI nerve fibers were detectable mostly in the portal spaces, the TH‐LI ones occurring only around blood vessels while the ChAT‐LI nerve fibers were also associated with secretory ducts. The density of TH‐like immunoreactivity in the portal areas decreased after the CCl4 14 weeks treatment and PH and increased after T3. By contrast, ChAT‐LI nerve fibers appeared particularly abundant around the neoductal elements in the CCl4 rats and were rare to absent in the PH and T3‐treated groups. The ChAT‐LI nerve fiber density within the portal areas revealed an increase in the CCl4‐treated rats while showing no change in the PH and T3‐treated rats. The changes in the density of perivascular TH‐ and ChAT‐containing nerve fibers suggest a finely tuned autonomic modulation of hepatic blood flow depending on the type of subacute/chronic induced hyperplasia, while the characteristic occurrence of the periductal cholinergic innervation after the CCl4 treatment implies a selective parasympathetic role in regulating the physiopathological regenerative potential of the rat liver.
Towards a Theory of Serendipity: A Systematic Review and Conceptualization
Authors: Busch Christian 
Published: November 2022

AbstractSerendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual‐ and organizational‐level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management‐related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event‐based theorizing, and quantum‐based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi‐level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.
Gene polymorphisms and serum levels of mannose‐binding lectin in Czech patients with recurrent aphthous stomatitis: A case–control study
Authors: Izakovicova Pavla , Slezakova Simona , Jiraskova Zakostelska Zuzana , Sistkova Jana , Mlcuchova Natalie , Bartova Jirina , Petanova Jitka , Kuklinek Pavel , Fassmann Antonin , Dusek Ladislav , Izakovicova Holla Lydie , Borilova Linhartova Petra 
Published: November 2022

AbstractBackgroundRecurrent aphthous stomatitis is one of the most prevalent oral mucosal immunological diseases. A recent case–control study in the Egyptian population suggested that single nucleotide polymorphism Gly54Asp (rs1800450) of the mannose‐binding lectin 2 gene might affect the mannose‐binding lectin serum level and recurrent aphthous stomatitis development. The aim of this study was to determine the distribution of six functional mannose‐binding lectin 2 gene polymorphisms and analyse their role in recurrent aphthous stomatitis susceptibility in the Czech population.MethodsThe study included 227 subjects; 137 healthy people and 90 patients with recurrent aphthous stomatitis. Six mannose‐binding lectin 2 gene polymorphisms (rs11003125, rs7096206, rs7095891, rs5030737, rs1800450, rs1800451) were analysed by the SNaPshot assay method, mannose‐binding lectin serum levels were determined by enzyme‐linked immunosorbent assay (ELISA) method in a subgroup of subjects (N = 87).ResultsNo significant differences in mean of mannose‐binding lectin serum levels between healthy controls and patients with recurrent aphthous stomatitis were observed (383 ng/ml ± 249 standard deviation (SD) vs. 316 ng/ml ± 177 SD in remission phase vs. 343 ng/ml ± 254 SD in active phase;p > 0.05), also the allele and genotype frequencies of the studied mannose‐binding lectin 2 polymorphisms did not differ significantly between the two groups (p > 0.05, odds ratio (OR): 0.75–1.23). Moreover, the distribution of mannose‐binding lectin 2 haplotypes and haplogenotypes was similar in the healthy subjects and patients with recurrent aphthous stomatitis (p > 0.05, OR: 0.75–1.23).ConclusionsThis study did not confirm the previously reported association of the mannose‐binding lectin 2 Gly54Asp gene variant and low mannose‐binding lectin serum level as the risk factors for susceptibility to recurrent aphthous stomatitis. In addition, no significant relationships between mannose‐binding lectin 2 functional haplotypes or haplogenotypes and recurrent aphthous stomatitis were observed.
Use of completion projective technique to understand consumer's perception upon a novelty cosmetic with olive oil
Authors: Parente Emma , Miraballes Marcelo , Gámbaro Adriana 
Published: November 2022

AbstractProjective techniques are a type of qualitative methodology that have rarely been applied to cosmetic products. In this study, 334 women completed an online survey aiming to explore their perception of an after‐shower oil with olive oil, applying three variants of the completion projective technique (story completion, sentence completion, and dialogue completion). Even though 36% of the assessors intended to buy and try the product, some aspects discouraged other consumers from buying it, such as the belief that the product will leave a greasy and sticky sensation on the skin (36.4%) and the intense disagreeable smell (28.7%) that it might have. The lack of knowledge of several consumers regarding the effects of olive oil on the skin was also evident. This study allowed us to define important aspects to be considered during the design of a new cosmetic containing olive oil. The information obtained might also be used to plan strategies of communication and position of the product in the market.Practical ApplicationsThe application of completion projective techniques to study consumers' perception of a novel cosmetic product allows us to obtain relevant information to be considered during the design of the new cosmetic, hence identifying more suitable marketing and communication strategies to promote the product to potential purchasers.
Two bloom‐forming species ofUlva(Chlorophyta) show different responses to seawater temperature and no antagonistic interaction
Authors: Bermejo Ricardo , Galindo‐Ponce Maria , Golden Nessa , Linderhoff Charlene , Heesch Svenja , Hernández Ignacio , Morrison Liam 
Published: November 2022

The generalized use of molecular identification tools indicated that multispecific green tides are more common than previously thought.Temporal successions between bloom‐forming species on a seasonal basis were also revealed in different cold temperate estuaries, suggesting a key role of photoperiod and temperature controlling bloom development and composition. According to the Intergovernmental Panel on Climate Change, water temperatures are predicted to increase around 4°C by 2100 in Ireland, especially during late spring coinciding with early green tide development. Considering current and predicted temperatures, and photoperiods during bloom development, different eco‐physiological experiments were developed. These experiments indicated that the growth ofUlva lacinulatawas controlled by temperature, whileU. compressawas unresponsive to the photoperiod and temperatures assayed. Considering a scenario of global warming for Irish waters, an earlier development of bloom is expected in the case ofU. lacinulata. This could have significant consequences for biomass balance in Irish estuaries and the maximum accumulated biomass during peak bloom. The observed seasonal patterns and experiments also indicated thatU. compressamay facilitateU. lacinulatadevelopment. When both species were co‐cultivated, the culture performance showed intermediate responses to experimental treatments in comparison with monospecific cultures of both species.
Biglycan promotes hepatic fibrosis through activating heat shock protein 47
Authors: Yu Mengli , He Xinjue , Song Xin , Gao Jianguo , Pan Jiaqi , Zhou Tianyu , Wang Qinqiu , Zhu Wei , Ma Huijian , Zeng Hang , Xu Chengfu , Yu Chaohui 
Published: November 2022

AbstractBackgroundBiglycan (BGN) is a small leucine‐rich proteoglycan that participates in the production of excess extracellular matrix (ECM) and is related to fibrosis in many organs. However, the role of BGN in liver fibrosis remains poorly understood. This study aimed to investigate the role and mechanism of BGN in liver fibrosis.MethodsHuman liver samples, Bgn−/0 (BGN KO) mice and a human LX‐2 hepatic stellate cells (HSCs) model were applied for the study of experimental fibrosis. GEO data and single‐cell RNA‐seq data of human liver tissue were analysed as a bioinformatic approach. Coimmunoprecipitation, immunofluorescence staining, western blotting and qRT–PCR were conducted to identify the regulatory effects of BGN on heat shock protein 47 (HSP47) expression and liver fibrosis.ResultsWe observed that hepatic BGN expression was significantly increased in patients with fibrosis and in a mouse model of liver fibrosis. Genetic deletion of BGN disrupted TGF‐β1 pathway signalling and alleviated liver fibrosis in mice administered carbon tetrachloride (CCl4). siRNA‐mediated knockdown of BGN significantly reduced TGF‐β1‐induced ECM deposition and fibroblastic activation in LX‐2 cells. Mechanistically, BGN directly interacted with and positively regulated the collagen synthesis chaperon protein HSP47. Rescue experiments showed that BGN promoted hepatic fibrosis by regulating ECM deposition and HSC activation by positively regulating HSP47.ConclusionOur data indicate that BGN promotes hepatic fibrosis by regulating ECM deposition and HSC activation through an HSP47‐dependent mechanism. BGN may be a new biomarker of hepatic fibrosis and a novel target for disease prevention and treatment.
Terrestrial ages of seven meteorite strewn fields and two single unpaired meteorites from the Sultanate of Oman determined using 14C and 10Be
Authors: Sliz Malgorzata U. , Hofmann Beda A. , Leya Ingo , Szidat Sönke , Espic Christophe , Gattacceca Jérôme , Braucher Régis , Borschneck Daniel , Gnos Edwin ,   ASTER Team
Published: November 2022

AbstractThrough the investigation of terrestrial ages of meteorites from Oman, we aim to better understand the time scales of meteorite accumulation and erosion in Oman and the meteorite flux in the past. Here, we present 14C and 14C‐10Be terrestrial ages of seven ordinary chondrite strewn fields and two unpaired single meteorites from the Sultanate of Oman. After critical evaluation of multiple data for each strewn field, we propose “best estimate terrestrial ages,” typically based on 14C/10Be. For objects for which complex irradiation histories are known or suspected, terrestrial ages were calculated solely using 14C. The best estimate strewn field ages range from 8.1 ± 3.0 ka (SaU 001) to 35.2 ± 5.1 ka (Dho 005). Including two previously dated strewn fields, the mean and median age of nine Oman strewn fields is 15.9 ± 12.3 and 13.6 ka, respectively. The new data show a general good agreement with data previously obtained in a different laboratory, and we observe a similar general correlation between strewn field ages and mean weathering grade as in previous work based on individual meteorites. Weathering degree W4 is reached for dated samples after 20–35 ka. While the age statistics of strewn fields does not show the previously observed lack of young events, the low abundance of young (0–5 ka) individual meteorites as compared with older (~20 ka) meteorites is confirmed by our data and remains unexplained.