bluuebunny/crossref_metadata_2025_split huggingface dataset:
Taxonomic revision of the species of Stenothemus from Southwest China (Coleoptera, Cantharidae), with the descriptions of five new species
Authors: Yang Yuxia , Ge Shujuan , Yang Xingke , Liu Haoyu 
Published: June 2021

The species of Stenothemus Bourgeois, 1907 from Southwest China are reviewed. Three species are transferred to this genus, S. davidi (Pic, 1926) comb. nov. (from Malthacus Kirby, 1837), S. minutissimus (Pic, 1933) comb. nov. (from Micropodabrus Pic, 1920) and S. singularicollis (Pic, 1933) comb. nov. (from Lycocerus Gorham, 1895). Two new synonyms are suggested, S. dinshuiensis Švihla, 2011 syn. nov. is synonymized with S. davidi and S. melleus Švihla, 2005 syn. nov. with S. singularicollis. Stenothemus shaanxiensis Švihla, 2004 stat. nov. is raised to species level from a subspecies of S. benesi Švihla, 2004. Five new species are described, S. gracilis Y. Yang & X. Yang sp. nov., S. chongqingensis Y. Yang & H. Liu sp. nov., S. flavicollis Y. Yang & S. Ge sp. nov., S. jindraimimus Y. Yang & X. Yang sp. nov. and S. laticornis Y. Yang & H. Liu sp. nov., which are illustrated with photographs of habitus, aedeagi, abdominal sternites VIII and internal genitalia of the female. Characters of the female reproductive system are described for the first time for the following species: S. diffusus Wittmer, 1974, S. dundai Švihla, 2004, S. grahami Wittmer, 1974, S. jindrai Švihla, 2004, S. tryznai Švihla, 2004 and S. singularicollis. Some additional distribution information is added for previously known species. A key for the identification of all studied species is provided.
Explorando novas tecnologias para a Antropometria Sentada
Authors: Sierra Isabella de Souza , Okimoto Maria Lúcia Leite Ribeiro 
Published: June 2021

Devido à maior complexidade da obtenção de dados antropométricos digitais de indivíduos sentados, observa-se uma lacuna na literatura científica sobre isso. Assim, neste estudo investigaram-se estratégias para a coleta de dados dos sujeitos sentados por meio de escaneamento tridimensional. Foi proposto um método de coleta com o uso de um suporte transparente. Foi analisado o uso deste método com cinco sujeitos na posição sentada. Este estudo exploratório permitiu levantar as variáveis necessárias para os requisitos de projeto e um sistema de escaneamento digital sentado aplicável à antropometria digital e ao desenvolvimento de produtos adaptados
EL IMPACTO DEL CAMINO DE SANTIAGO A ESCALA LOCAL: LA PERCEPCIÓN DE LOS RESIDENTES DE DOS MUNICIPIOS GALLEGOS
Authors: Fernández Fernández Melchor , Fernández Méndez Diana , Riveiro García Dolores 
Published: June 2021

Este trabajo estudia la percepción de los residentes de dos municipios rurales sobre los impactos económicos, sociales, culturales y medioambientales del Camino de Santiago, a partir de la información cuantitativa obtenida en una encuesta de satisfacción. Los resultados revelan una percepción global positiva y descartan problemas de percepción de saturación vinculados al creciente número de peregrinos que recorren sus localidades. Además, lavaloración global no depende de la proximidad de la residencia al Camino, pero es más positiva para los individuos con ingresos vinculados a actividades turística y para los que tienen un contacto más frecuente con los peregrinos.
This study explores the perception of residents from two rural municipalities on impacts deriving from the St James Way. The analysis is conducted on the basis of the quantitative information obtained from a satisfaction survey. The results reveal a positive overall perception, ruling out saturation perception problems linked to the increasing number of pilgrims walking along their communities. Moreover, global perception does not depend on the proximity of the individual's residence to the Way but is more positive for individuals deriving income from tourism activities and for those having more intensive contact with pilgrims.
THE IMPACT OF THE ECONOMIC CRISIS ON MOUNTAIN TOURISM: AN ANALYSIS IN THE CENTRAL PYRENEES REGION IN SPAIN
Authors: Orive Víctor , Elboj Carmen , Valero Diana 
Published: June 2021

Este artículo analiza el impacto de la crisis de 2007 en el contexto del turismo de montaña. Para alcanzar este objetivo, la investigación analiza más de 300 empresas que desarrollan su actividad en los Pirineos. A través de un análisis longitudinal que incluye el periodo 2006 (fecha previo al inicio de la crisis) y 2016 (momento en el que la recuperación económica ya está asentada) se ha analizado la evolución variables económicas y financieras. Los resultados de la investigación indican que la mayoría de las variables consideradas se han visto reducidas con respecto al año 2006.
This article analyses the impact of the 2007 economic crisis on mountain tourism. In order to achieve this objective, we examined more than 300 tourist companies that focus their activity in the Central Pyrenees region in Spain. Through a longitudinal analysis that covers the period from 2006 (the year before the start of the crisis) to 2016 (the date on which the recovery is established), we analysed the evolution of the economic and financial variables. The results of the research indicate that during this period the majority of variables showed losses relative to the values ​​in 2006.
IMPACTO DE LAS VIVIENDAS DE USO TURÍSTICO EN ESPAÑA EN EL CONTEXTO PRE-COVID19: ESTUDIO DE CASOS MADRID E ISLAS BALEARES
Authors: Medina López Ana , Fernández de Alarcón Roca Belén 
Published: June 2021

La industria turística se suma a la era digital incrementando la oferta de viviendas de uso turístico. El análisis de las externalidades negativas asociadas a este fenómeno vertebra este trabajo en cinco claves. Se sintetiza la normativa en dos destinos representativos: Baleares y Madrid. Se presenta una cuantificación de impactos económicos a nivel nacional, con la Tabla Input-Output de España 2015, constatando que un cambio de patrón de comportamiento del turista, asociado a los hábitos en viviendas vacacionales, genera impactos de diversa índole desde la óptica de la contabilidad nacional.
The tourism industry joins the digital era driving to an increase in the offer of home sharing for tourist use. The analysis of the negative externalities associated with this phenomenon supports this work in five keys. It synthesizes the regulations in two representative destinations: Balearic Islands and Madrid. Presents a quantification of economic impacts at national level, with Table Input-Output of Spain 2015, noting that a change of behavior pattern tourists associated with habits in housing for tourist, generates impacts of various signs from the perspective of national accounting.
Risk Assessment of Poisonous Metals in Water and Soil at Two Abandoned Lead-Zinc Mines at Yonov, Benue State
Authors: Paul Samuel N. , Babatunde Bolaji B. 
Published: June 2021

Aim: The study was aimed at determining the risk assessment of toxic metal concentration in soil and water at two abandoned Lead-Zinc mines Yonov District, Logo, Benue State, Nigeria.
Study design: comparative cross-sectional study.
Place and duration of study: This study was carried out at the Bruce Powel Toxicology & Biodiversity Laboratory, Animal and Environmental Biology Department, University of Port Harcourt, Analysis at Giolee Global Services Limited Port Harcourt, Nigeria from 16th July to 30th October 2019.
Methodology: Eighteen composite water and soil samples were collected and analyzed using Atomic Absorption Spectrophotometer.
Results: The mean concentration of Lead (Pb) was higher than that of Zinc (Zn) in all eighteen samples, while, Mercury (Hg) and Cadmium (Cd) were below detection limit in all samples. Mean concentration for Pb in soil samples in the order SiteII>Site I (1.29±0.134 mg/kg>1.26±0.04mg/kg) >control 0.82±0.06 mg/kg. Zn was higher in site I, 0.70±0.10 mg/kg than site II 0.66±0.04mg/kg, and control 0.42±0.02mg/kg. Pb values in water was similar in both sites at 0.46±0.04/0.02 mg/L, while control 0.02±0.001mg/kg. Zn was higher in site II 0.05±0.01mg/L than site I 0.04±0.01Mg/L, control was 0.004±0.00 mg/L. Health risk assessment showed that Estimated daily intake of metals, hazard quotient, hazard index were all less than 1, Carcinogenic risk was within the stipulated ranged of 10-6 to 10-4.
Conclusion: Ecological and health risk indices revealed non-contamination by Poisonous metals, however, routine assessment is recommended to forestall any sudden change in the concentration that may result to deleterious effects on human health.
Determinants of Immunization Completeness among Children Aged 12-23 Months in South-West Nigeria
Authors: Olarinmoye Abayomi , Eniade Olanrewaju Davies , Enyinnaya Blessing O , Olasunkanmi Yusuff Akinkunmi , Nwaneri Blessing Chizorom , Eniade Adenike Aramide , Agbojo Uriel Oluwadarasimi , Afolabi Divine Wonuola , Kayode Bode 
Published: June 2021

Introduction: Vaccine preventable disease remained issue of major concern to the global health system. Low coverage of immunization necessitated the need to explore the determinants of immunization uptake. Factors influencing immunization coverage in South-West Nigeria were investigated in this study.
Methods: Data from the Nigeria demographic and health survey (NDHS) was used for this study. Our focus was on children between 12 to 23 months whose parents were residents of South-West Nigeria. A total of 655 records were used for the analysis of this study. The outcome variable (child’s immunization status) was categorized as “non-or- under immunized and fully immunized”. Considered explanatory variables were children and parents’ characteristics.
Data were analyzed using Statistical package for social sciences (SPSS) version 25. Descriptive statistics were presented and generalized linear model was used to explore the determinants of immunization completeness.
Results: Of the 665 children whose mean age was 16.7 ± 3.4 SD months, 62.3% were non-or-under immunized, while only 79.8% were birthed in the health facility. Majority of them (65.1%) were not presented for postnatal check within two months of birth while 51% do not have health card. About 79% of the mothers said distance to the health facility was not a problem. In this study, postnatal check within 2 months of birth, type of residence and ownership of health card were identified factors influencing the uptake of immunization. For instance, Those who said distance is a problem were 3 times less likely to fully immunize their children (AOR=0.28, p=0.000, 95% CI: 0.16-0.47). Obviously, ownership of health card (AOR=15.34, p=0.000, 95% CI: 9.86-23.88) and postnatal check within 2 months of birth (AOR=1.78, 95% CI: 0.37-0.86) were associated with the likelihood of complete immunization.
Conclusion: Immunization uptake was very low in South-West Nigeria. Factors that were positively associated with completeness of immunization include observance of postnatal check and ownership of healthcare card while problem of distance to health facility was negatively associated. Increasing vaccination coverage/ completeness would ameliorate, if policy geared towards the improvement of postnatal check-ups, distribution of healthcare facilities within residential areas and strict adherence to the use of health care are considered in the South-West Nigeria.
A Focus on “Bio” in Bio–Nanoscience: The Impact of Biological Factors on Nanomaterial Interactions
Authors: Cortez‐Jugo Christina , Czuba‐Wojnilowicz Ewa , Tan Abigail , Caruso Frank 
Published: June 2021

AbstractBio–nanoscience research encompasses studies on the interactions of nanomaterials with biological structures or what is commonly referred to as the biointerface. Fundamental studies on the influence of nanomaterial properties, including size, shape, composition, and charge, on the interaction with the biointerface have been central in bio–nanoscience to assess nanomaterial efficacy and safety for a range of biomedical applications. However, the state of the cells, tissues, or biological models can also influence the behavior of nanomaterials at the biointerface and their intracellular processing. Focusing on the “bio” in bio–nano, this review discusses the impact of biological properties at the cellular, tissue, and whole organism level that influences nanomaterial behavior, including cell type, cell cycle, tumor physiology, and disease states. Understanding how the biological factors can be addressed or exploited to enhance nanomaterial accumulation and uptake can guide the design of better and suitable models to improve the outcomes of materials in nanomedicine.
Synthesis of 2‐Alkenyl‐4H‐3,1‐Benzoxazin‐4‐Ones through HFIP‐Mediated Decarboxylative [4+2]‐Annulation of Isatoic Anhydrides with Cyclopropenones under Silver Catalysis
Authors: Yang Mengqi , Wang Jixin , Lv Weiwei , Ba Dan , Cheng Guolin , Wang Lianhui 
Published: June 2021

AbstractWe herein describes an HFIP‐mediated [4+2]‐cycloaddition reaction from simple and easily available isatoic anhydrides and cyclopropenones under silver catalysis. This transformation involves the tandem decarboxylative esterification, intermolecular addition, intramolecular substitution, small ring opening and isomerization processes, which allows the rapid assembly of versatile 2‐diarylalkenyl‐4H‐3,1‐benzoxazin‐4‐ones.magnified image
Motion cues increase focused attention towards purely visual stimuli in a nocturnal primate and drive stimulus interaction and approach/avoidance in a context‐dependent manner
Authors: Hartje Valeria , Illemann Michele J. , Schmidtke Daniel 
Published: June 2021

AbstractVisual information is of pivotal ecological importance to monkeys, apes, and humans, whereas its role in nocturnal primate ecology is less well understood. We explored how purely visual information modulates the behavior of a nocturnal primate. Abstract (shape), photographic (shape + detail), or video (shape + detail + motion) representations of arthropod prey (Zophobas morio; food context) or a male conspecific (social context) were systematically presented to 22 individuals of the gray mouse lemur (Microcebus murinus) using a touchscreen. We assessed stimulus‐directed touch interactions, durations of focused visual attention towards the different stimuli, and durations spent in the half of the setup‐chamber more distant to the touchscreen (as quantification of approach/avoidance). Focused attention towards the stimulus generally increased from abstract and photographic to videographic stimuli. For the food context, indications for a parallel increase in stimulus‐directed touch interactions from abstract stimulus to video were found. Approach/avoidance was independent of the stimulus type within both contexts. A comparison between the contexts under the video condition revealed higher durations of visual attention and lower stimulus avoidance in the food context compared to the social context. The number of touch interactions with the video stimulus was not generally context‐dependent, but context‐dependency related to sex: In the food context, animals with high and low numbers of touch interactions were equally distributed across sexes. In the social context, females showed the highest numbers of touch interactions. Numbers in males declined compared to the food context. Our results demonstrate for the first time that purely visual information modulates mouse lemur behavior and focused attention in a content‐ and context‐specific manner, suggesting that vision is of high importance for the ecology of these nocturnal primates. The findings emphasize the need for further vision‐based experiments to gain deeper insight into the evolution of visual information processing and cognition in nocturnal primates.
Thiophene‐Based Conjugated Acetylenic Polymers with Dual Active Sites for Efficient Co‐Catalyst‐Free Photoelectrochemical Water Reduction in Alkaline Medium
Authors: Borrelli Mino , Querebillo Christine Joy , Pastoetter Dominik L. , Wang Tao , Milani Alberto , Casari Carlo , Khoa Ly Hoang , He Fan , Hou Yang , Neumann Christof , Turchanin Andrey , Sun Hanjun , Weidinger Inez M. , Feng Xinliang 
Published: June 2021

AbstractAlthough being attractive materials for photoelectrochemical hydrogen evolution reaction (PEC HER) under neutral or acidic conditions, conjugated polymers still show poor PEC HER performance in alkaline medium due to the lack of water dissociation sites. Herein, we demonstrate that tailoring the polymer skeleton from poly(diethynylthieno[3,2‐b]thiophene) (pDET) to poly(2,6‐diethynylbenzo[1,2‐b:4,5‐b′]dithiophene (pBDT) and poly(diethynyldithieno[3,2‐b:2′,3′‐d]thiophene) (pDTT) in conjugated acetylenic polymers (CAPs) introduces highly efficient active sites for water dissociation. As a result, pDTT and pBDT, grown on Cu substrate, demonstrate benchmark photocurrent densities of 170 μA cm−2 and 120 μA cm−2 (at 0.3 V vs. RHE; pH 13), which are 4.2 and 3 times higher than that of pDET, respectively. Moreover, by combining DFT calculations and electrochemical operando resonance Raman spectroscopy, we propose that the electron‐enriched Cβ of the outer thiophene rings of pDTT are the water dissociation active sites, while the −C≡C− bonds function as the active sites for hydrogen evolution.
Synthesis and characterization of [4‐{(CH2O)2CH}C6H4]2Hg, [4‐(O=CH)C6H4]2Hg and [(E)‐4‐(RN=CH)C6H4]2Hg (R = 2′‐py, 4′‐py, 2′‐pyCH2, 4′‐pyCH2)
Authors: Kiss Levente , Pop Alexandra , Shova Sergiu , Raț Ciprian I. , Silvestru Cristian 
Published: June 2021

AbstractThe reaction of 4‐[(CH2O)2CH]C6H4Br (1) with n‐BuLi, followed by addition of HgCl2 to the in situ formed organolithium derivative, affords [4‐{(CH2O)2CH}C6H4]2Hg (2). Deprotection of the formyl groups of 2 in presence of p‐TsOH (p‐Ts = 4‐MeC6H4SO3) leads to [4‐(O=CH)C6H4]2Hg (3). Condensation reactions of 3 with 2‐aminopyridine (2‐pyNH2), 4‐aminopyridine (4‐pyNH2), 2‐aminomethylpyridine (2‐pyCH2NH2), and 4‐aminomethylpyridine (4‐pyCH2NH2), in CH2Cl2, affords the novel diorganomercury(II) compounds of type [(E)‐4‐(RN=C)C6H4]2Hg [R = 2′‐py (4), 4′‐py (5), 2'‐pyCH2‐ (6), 4′‐pyCH2 (7)]. Compounds 2 and 3 were useful precursors for the preparation of the corresponding homocoupling products [4‐{(CH2O)2CH}C6H4]2 (8) and [4‐(O=CH)C6H4]2 (9) in presence of catalytic amounts of palladium(II) acetate. Compounds 2–9 were characterized by multinuclear magnetic resonance (NMR) (1H, 13C{1H}, and 199Hg{1H}, when appropriate) and infrared (IR) spectroscopy and by mass spectrometry. The molecular structures of 3, 5, 6, 8, and 9 were determined by single‐crystal X‐ray diffraction.
Phase distribution changes of neat unsaturated polyester resin and their effects on both thermal stability and dynamic‐mechanical properties
Authors: Marín Daniel , Gañán Piedad , Tercjak Agnieszka , Castro Cristina , Builes Daniel H. 
Published: June 2021

AbstractA relationship between phase distribution of a commercial unsaturated polyester resin (UPR) and both thermal stability and dynamical mechanical properties, measured by thermogravimetric analysis and dynamic‐mechanical analysis respectively, is observed. Changes in phase distributions are achieved varying UPR components miscibility by means of temperature. Morphologies of the internal surfaces are analyzed by atomic force microscopy showing that more homogeneous nanostructures with smaller nodules result in the increase of the storage modulus and glass transition temperature of the thermosetting UPR. Tan δ peaks show that the phase rich in UP and the phase rich in polystyrene tend to decrease their differences at higher curing temperatures. Changes in the curing mechanism and kinetics with curing temperature are verified by differential scanning calorimetry. A theoretical explanation of archived morphology is proposed using interaction parameter between UP and styrene showing that higher temperatures increased their miscibility.
Thermoplastic polyurethane with good mechanical and processing performances via blocking and deblocking of isocyanates
Authors: Xu Bowen , Han Feilong , Pei Xuqiang , Liu Xin , Zhang Junying , Cheng Jue , Zhao Jingbo 
Published: June 2021

AbstractIncreasing the molecular weight of polyurethanes (PU) is an effective way to improve its mechanical properties, while, it is at the expense of sacrificing processability. Congruent modification in both mechanical and processing performances is still a challenge. Here, bis‐phenol‐A (BPA) derivatives, including tetrachlorobisphenol‐A and tetrabromobisphenol‐A, were chosen as the extender to synthesize thermoplastic PUs (TPU) containing blocked isocyanate units. This blocked isocyanate has a temperature‐responsive reversible reaction due to phenol urethane bonds, so as to ensure the good mechanical properties at the service temperature and better processing performance via deblocking into smaller molecular weight at the processing temperature; in addition, negative induction effect of the halogen substituents endow BPA derivatives with deblocking reaction at lower temperature. The experimental results confirmed that the blocking reaction carried out completely at 70°C, and accompanying by the dramatical increase of molecular weight. The obvious deblocking reaction happened at 140°C, where the average molecular weight of TPUs decreased from 22,600 g/mol to 13,690 g/mol. Meanwhile, the melt flow index increased significantly with the extension of heating time, indicating that the PU has good processing properties. After the deblocking and re‐blocking reactions were repeated alternatively, there is almost no change in its tensile properties, molecular weight and melt outflow index within two cycles under air atmosphere. This article proposes a strategy of congruent modification in both mechanical and processing performances of TPU.
Spatial distribution patterns of fish egg and larval assemblages in the lower reach of the Yangtze River: Potential implications for conservation and management
Authors: Ren Peng , Schmidt Bjorn V. , Fang Di‐an , Xu Dongpo 
Published: June 2021

AbstractRiver fish diversity is threatened by anthropogenic environmental alteration to landscapes. The early life‐history stages of fish play an important role in maintaining diversity and population recruitment and can be heavily influenced by landscape patterns. Information on temporal and spatial distribution patterns of fish eggs and larvae is also important for biodiversity conservation and management of fish resources.The Yangtze River possesses a high diversity of fishes, including many commercially important species. The economy along the lower reach of the river is well developed, and most of the area is experiencing high pressure from human impacts. This section of the Yangtze River connects with the largest freshwater lake in China at the upstream end and flows into the estuary at the downstream end. These two landscape features are likely to have a significant impact upon the spatial distributions of fish egg and larval assemblages.Environmental variables, fish eggs, and larval assemblages were sampled in three locations, at Hukou, Anqing, and Jingjiang, in the lower reach of the Yangtze River. The results suggest that the higher number of species and greater abundance in upstream sites reflect the critical function of connectivity of Poyang Lake with the river for fish recruitment in the lower Yangtze. The delayed bloom of larval fish, occurrence of estuarine species, and a lower species number and abundance of freshwater fish downstream reflect the influence of tidal intrusion from the estuary.This study highlights the value of maintaining natural river–lakes connectivity in the Yangtze River as a conservation measure. The connected river–lake system should be designated as a priority area for fish resource protection in the lower reach of the Yangtze River. We recommend further measures to break down barriers between the river and other lakes and to restore the natural lateral connectivity of the floodplain ecosystem.