bluuebunny/crossref_metadata_2025_split huggingface dataset:
La personalidad de marca para la mejora de la lealtad en servicios deportivos: el rol de la congruencia
Authors: Alguacil M. , Parra-Camacho D. , Mundina C. 
Published: April 2019

Esta investigación pretende comprobar si la personalidad de marca tiene una influencia en el aumento de los niveles de congruencia o identificación que tiene el usuario con la marca, y si es así, en qué medida lo hace. Del mismo modo, pretende conocer si dicha congruencia es un elemento determinante para conseguir la lealtad de los usuarios de servicios deportivos. Para ello, se ha utilizado un instrumento de medida formado a partir de la bibliografía existente, analizando tanto la fiabilidad y validez del instrumento como las relaciones entre las variables propuestas con el programa de ecuaciones estructurales smartPLS. Los resultados indican que las dimensiones de sinceridad, competencia y sofisticada de la personalidad de marca influyen significativamente en la mejora de la congruencia y explican hasta un 55% de su varianza, así como la congruencia, por sí sola, es capaz de explicar hasta un 52% de la varianza de la lealtad.
This research aims to test whether and to what extent brand personality has an influence on the user's increased levels of consistency or identification with the brand. Likewise, it seeks to know whether such congruence is a determining element for achieving the loyalty of users of sports services. To this end, a measuring instrument based on existing literature has been used to analyse both the reliability and validity of the instrument and the relationships between the variables proposed with the smartPLS structural equation programme. The results indicate that the sincerity, competence and sophistication dimensions of brand personality significantly influence the improvement of congruence and explain up to 55% of its variance, as well as congruence alone is capable of explaining up to 52% of the variance of loyalty.
Properties of a cryptic lysyl oxidase from haloarchaeonHaloterrigena turkmenica
Authors: Pestov Nikolay B. , Kalinovsky Daniel V. , Larionova Tatyana D. , Zakirova Alia Z. , Modyanov Nikolai N. , Okkelman Irina A. , Korneenko Tatyana V. 
Published: April 2019

BackgroundLysyl oxidases (LOX) have been extensively studied in mammals, whereas properties and functions of recently found homologues in prokaryotic genomes remain enigmatic.MethodsLOX open reading frame was cloned fromHaloterrigena turkmenicain anE. coliexpression vector. RecombinantHaloterrigena turkmenicalysyl oxidase (HTU-LOX) proteins were purified using metal affinity chromatography under denaturing conditions followed by refolding. Amine oxidase activity has been measured fluorometrically as hydrogen peroxide release coupled with the oxidation of 10-acetyl-3,7-dihydroxyphenoxazine in the presence of horseradish peroxidase. Rabbit polyclonal antibodies were obtained and used in western blotting.ResultsCulturedH. turkmenicahas no detectable amine oxidase activity. HTU-LOX may be expressed inE. coliwith a high protein yield. The full-length protein gives no catalytic activity. For this reason, we hypothesized that the hydrophobic N-terminal region may interfere with proper folding and its removal may be beneficial. Indeed, truncated His-tagged HTU-LOX lacking the N-terminal hydrophobic signal peptide purified under denaturing conditions can be successfully refolded into an active enzyme, and a larger N-terminal truncation further increases the amine oxidase activity. Refolding is optimal in the presence of Cu2+at pH 6.2 and is not sensitive to salt. HTU-LOX is sensitive to LOX inhibitor 3-aminopropionitrile. HTU-LOX deaminates usual substrates of mammalian LOX such as lysine-containing polypeptides and polymers. The major difference between HTU-LOX and mammalian LOX is a relaxed substrate specificity of the former. HTU-LOX readily oxidizes various primary amines including such compounds as taurine and glycine, benzylamine being a poor substrate. Of note, HTU-LOX is also active towards several aminoglycoside antibiotics and polymyxin. Western blotting indicates that epitopes for the anti-HTU-LOX polyclonal antibodies coincide with a high molecular weight protein inH. turkmenicacells.ConclusionH. turkmenicacontains a lysyl oxidase gene that was heterologously expressed yielding an active recombinant enzyme with important biochemical features conserved between all known LOXes, for example, the sensitivity to 3-aminopropionitrile. However, the native function in the host appears to be cryptic.SignificanceThis is the first report on some properties of a lysyl oxidase from Archaea and an interesting example of evolution of enzymatic properties after hypothetical horizontal transfers between distant taxa.
The Effects of Pre-Harvest Naphthalene Acetic Acid (NAA) Treatments on Fruit Quality Attributes of Braeburn Apples during Cold Storage
Authors: Ozturk Burhan , Karakaya Orhan , Ozkan Yakup , Yildiz Kenan , Karakaya Medeni , Guler Saadet Koc 
Published: April 2019

In this study, effects of pre-harvest naphthalene acetic acid (NAA) treatments on weight loss, color, flesh firmness, soluble solids content (SSC), titratable acidity and starch index of Braeburn apples (Malus x domestica Borkh) were determined at harvest and at 45 days post-harvest intervals throughout cold storage at 0±0.5°C and 90±5% RH. During cold storage, the lowest weight loss was obtained from NAA-treated fruits. L* and hue angle values of both control and NAA-treated fruits decreased in all analysis periods. While chroma value increased for NAA-treated fruits during cold storage, it firstly increased, and then decreased. The flesh firmness of NAA-treated fruits was higher than control fruits at harvest, whereas it was lower in the last two analysis periods. NAA-treated fruits had lower SSC values than the control fruits. The starch degradation of NAA-treated fruits was faster than the control fruits.
Unemployment and its Effect on the Growth of Nigeria Economy
Authors: Elorhor Obele Tolulope 
Published: April 2019

Unemployment is known to be a worldwide economic problem which retards economic growth. It is found to be one of the serious impediments to colossal waste of a country’s manpower resources; hence it generates lower output thereby leading to lower income and sluggish economic growth. This empirical study however investigated the effect of unemployment on Economic Growth in Nigeria. This study was carried out in Nigeria between the period of 1986 and 2008. The data were analyzed using the ordinary least square approach. This paper also employed the techniques of stationary test, co – integration test, and error correction model to estimate the dynamic relationship between dependent and the independent or explanatory variables.
The result shows R2 to be 0.697 i.e. about 70 percent, Adjusted R2 to be about 53 percent due to data transformation, F. statistic 3.709958, t. Statistics of each explanatory variables shows 2.361284 for UNEMPLR, 0.222837 for EMPL, 3.037337 for GCF, 1.938742 for UNEMPLOY, and 0.799706 for JCV, showing that the explanatory variables are statistically significant in explaining the economic growth in Nigeria. Nevertheless, the result give a coefficient of 11.56651 for Unemployment Rate (UNEMPLR), 0.014065 for Employed Labour (EMPL), 0.852883 for Gross Capital Formation(GCF), 3.982484 for Unemployed Labour (UNEMPLOY), 1.161745 for Job Vacancies (JVAC). The result of the Co-integration test shows the presence of long run relationship between employed labour and growth. This result corroborates the fact that unemployment rate retards Nigeria’s economic growth thus, one percent increase in unemployment rate lead to about 11.56 percent decreases in Gross Domestic Product. It was also found that job vacancies have a negative relationship with growth.
Based on the finding, it is recommended that the Nigerian government has to be involved as major players in the establishment and management of economic and other forms of enterprises in order to promote job employment, and growth. To optimally raise the level of capital formation in Nigeria, government has to maintain a steady supply of energy (power) and other infrastructural supplies needed to raise employment level and boost economic growth. And being a reoccurring economic problem, this however needs further work to proffer solution.
(Dis) Investing Homi Bhabha’s Emancipative Discourse (from) in Post-colonial Project Management: Re-thinking the Amodernism of Imperial/African Political Economy
Authors: Ndi Alfred 
Published: April 2019

Drawing from Bruno Latour’s amodernist organization theory, which illuminates the canonization of epistemological boundaries in the field of project management studies, this paper argues that Homi Bhabha’s emancipative project in postcolonial research, has failed to assert itself in this globalizing age of projectification of societies. In its historiographical context incarnated in writings by management scholars, the field of project management orientalized Africa as underdeveloped and in need of occidentalist modernization. This Latourian insight driven by the quest for the ‘purified canon’ portraying the metropole as ‘centre’ of civilization and the colonies/Africa, as the Other, was tragically misjudged by nationalist ideologues fighting for independence, post-independence leaderships in Africa, who met in the Bandung Conference, advocates of a New World Economic Order, pan-Africanists, because their interventions were grounded chiefly in hybridization. But hybdization means the demise of the amodern and since the occident will not stand by to witness this decanonization with an applause, the Third World was already ‘mal parti’ (to cite Denan) because its post-independence leadership needlessly staged the post-colonial project on the path of a hybridization logic of inevitable confrontation rather than in a light of participation and solidarity. Hybridization in post-colonial management studies connotes with the inevitability of ‘confrontation’ at a time when the Third World does not have the means to deal efficiently with it. Hybridization can also mean ‘participation’ and ‘solidarity’ (in the sense of understanding the Other’s viewpoint and embedding it) without radiating the perception of threat and taking no responsibility or showing any competence to deal with the consequences of that perception.
It concludes that, instead of ‘playing’ the ideological game at the level of the ‘super-structures’, more emphasis should be placed on building greater competency in the Latourian amodernism of development, entrepreneurship, etc. The Third World needs to build more projects by investing in the knowledge industry of amodernism while incorporating its cultural values. The West and the emerging world should not see this as a ‘threat’ to amodernism but as a ‘richness’; but for this to happen, they should actively invest in sustainability of this process by supporting the intelligentsia of knowledge producers and interpreters in the Third World.
The Investigation and Study of the Cross-Culture Social Adaption of Students from ASEAN in Jiangxi Province
Authors: Zhiwei Xiong , Jiayun Zeng 
Published: April 2019

The social network of foreign students and its heterogeneity are the important factors that influence the cross-cultural adaptation of international students. In this paper, some colleges and universities in Nanchang ASEAN students studying design as an example, the heterogeneity of the questionnaire of social network, analyzes the social network heterogeneity present situation, then using two element Logistic regression analysis to examine various dimensions of heterogeneity affect cross-cultural adaptation. At last, drawing conclusions and recommendations for improvement, improving the cross-cultural adaptability of students.
Targeting inaccuracy caused by mechanical distortion of the Leksell stereotactic frame during fixation
Authors: Renier Cécile , Massager Nicolas 
Published: April 2019

AbstractBackgroundThe stereotactic frame represents the mainstay of accuracy for targeting in stereotactic procedures. Any distortion of the frame may induce a significant source of error for the stereotactic coordinates.ObjectiveTo analyze the sources of distortion of the Leksell frame G induced by fixation to the patient's head and to evaluate the clinical impact of frame distortion on the accuracy of targeting in stereotactic procedures.MethodsWe analyzed the torques exerted on the fixation screws after frame placement in a series of patients treated stereotactically by an experienced team. We studied the risk for frame bending in an experimental model of stereotactic frame fixation, with increasing torque of fixation screws in a homogeneous and heterogeneous distribution of torques between the four screws. We assessed the impact of expanding dimensions of bending of the Leksell frame both on surgeries utilizing the stereotactic frame, and on radiosurgical procedures with the Gamma Knife.ResultsFrames were fixed clinically at a range of torques of 0.147–0.522 Nm (mean = 0.348 Nm). The torques did not vary significantly with time. Heterogeneity between the two opposite pairs of screws is often limited, but can reach 96.3%. Distortion of the frame may occur even at minimal levels of torque. Heterogeneity between the two opposite pairs of screws will significantly raise the amount of frame distortion. We found a direct correlation between measures of the frame distortion and extend of the deviation from the stereotactic target in clinical models of stereotactic procedures.ConclusionStereotactic frames were subjected to distortion due to the torque used for frame fixation. The risk of distortion increased with the torque used and the heterogeneity between the torques of the fixation screws. Distortion of the frame was a significant source of inaccuracy of targeting for stereotactic procedures in clinical practice.
Visible‐Light‐Induced Hydroxysulfurization and Alkoxysulfurization of Styrenes in the Absence of Photocatalyst: Synthesis of β‐Hydroxysulfides and β‐Alkoxysulfides
Authors: Ruan Hongjie , Meng Ling‐Guo , Zhu Lingqiong , Wang Lei 
Published: April 2019

AbstractWe developed hydroxysulfurization and alkoxysulfurization of styrenes using a visible‐light synthetic strategy in the absence of photocatalyst and oxidant. This strategy provided the corresponding β‐hydroxysulfides and β‐alkoxysulfides in moderate to good yields with high regioselectivity. The reaction was tolerated by a wide range of functional groups. This is the first example of ArSSAr/CBr4 system has been introduced into organic transformation.magnified image
Iron (III)‐Promoted Synthesis of Substituted 4H‐Chalcogenochromenes and Chemoselective Functionalization
Authors: de Oliveira Isadora M. , Esteves C. Henrique A. , Darbem Mariana P. , Pimenta Daniel C. , Zukerman‐Schpector Julio , Ferreira Antonio G. , Stefani Hélio A. , Manarin Flavia 
Published: April 2019

AbstractThe iron(III)‐promoted synthesis of densely‐substituted 4H‐chalcogenchromene from organochalcogen propargylamines in the presence of diaryl dichalcogenides is reported. Subsequent C2‐functionalization with electrophiles and potassium trifluoroborate salts via Suzuki‐Miyaura coupling reaction are also presented. A plausible mechanism based on HRMS experiments is proposed and discussed.magnified image
Chiral Semiconductor Nanoparticles for Protein Catalysis and Profiling
Authors: Hao Changlong , Gao Rui , Li Yue , Xu Liguang , Sun Maozhong , Xu Chuanlai , Kuang Hua 
Published: April 2019

AbstractIn this study, via a simple one‐step method, chiral copper sulfide quantum dots (d/l‐QDs) were prepared using d‐/l‐penicillamine (d‐/l‐Pen). The anisotropy factor of d/l‐QDs was as high as 0.01. The d/l‐QDs can be used as photocatalysts to cleave proteins. Notably, the l‐QDs displayed the highest catalytic performance under left‐circularly polarized light irradiation. Mechanistic investigations indicate the generation of hydroxyl radicals as the reactive species that cause the cutting of proteins.
Hydrodehalogenation of Aryl Halides through Direct Electrolysis
Authors: Ke Jie , Wang Hongling , Zhou Liejin , Mou Chengli , Zhang Jingjie , Pan Lutai , Chi Yonggui Robin 
Published: April 2019

AbstractA catalyst‐ and metal‐free electrochemical hydrodehalogenation of aryl halides is disclosed. Our reaction by a flexible protocol is operated in an undivided cell equipped with an inexpensive graphite rod anode and cathode. Trialkylamines nBu3N/Et3N behave as effective reductants and hydrogen atom donors for this electrochemical reductive reaction. Various aryl and heteroaryl bromides worked effectively. The typically less reactive aryl chlorides and fluorides can also be smoothly converted. The utility of our method is demonstrated by detoxification of harmful pesticides and hydrodebromination of a dibrominated biphenyl (analogues of flame‐retardants) in gram scale.
Re‐Catalyzed Annulations of Weakly Coordinating N‐Carbamoyl Indoles/Indolines with Alkynes via C−H/C−N Bond Cleavage
Authors: Yang Yunhui , Wang Congyang 
Published: April 2019

AbstractDescribed herein are rhenium‐catalyzed [3+2] annulations of N‐carbamoyl indoles with alkynes via C−H/C−N bond cleavage, which provide rapid access to fused‐ring pyrroloindolone derivatives. For the first time, the weakly coordinating O‐directing group was successfully employed in rhenium‐catalyzed C−H activation reactions, enabled by the unique catalytic trio of Re2(CO)10, Me2Zn and ZnCl2. Mechanistic studies revealed that aminozinc species plays an important role in the reaction. Based on the mechanistic understanding, a more powerful catalytic trio of Re2(CO)10, [MeZnNPh2]2 and Zn(OTf)2 was devised and applied successfully in the [4+2] annulations of indolines and alkynes affording pyrroloquinolinone derivatives.
A competing risk analysis of death patterns in male genitourinary cancer
Authors: Bhattacharjee Atanu , Roy Gaurav , Budukh Atul , Dikshit Rajesh , Patil Vijay M. , Joshi Amit , Noronha Vanita , Prabash Kumar , Roy Papai 
Published: April 2019

AbstractBackgroundEarly diagnosis and improved therapeutic options have contributed to prolonged survival in male genitourinary cancer. However, these cancer survivors may die due to other causes.AimsThis work is aimed to explore the death patterns among male genitourinary cancer patients due to other causes. The occurrence of death not related to cancer is defined as competing risk (CR).Methods and resultsData extracted between 1973 and 2014 for male patients (n = 638 393) diagnosed with genitourinary cancer and registered in the Surveillance, Epidemiology, and End Results (SEER) Program were included for analysis. A CR analysis was performed to explore the death patterns due to cancer or otherwise. Our study evidenced a huge proportion of patients' death due to associated factors including but not limited to cancer. Interestingly, the computed hazard ratios obtained in cancers of male organ sites such as prepuce, glans penis, penis, and spermatic cord were 1.28 (0.98‐1.67), 1.53 (1.33‐1.77), 1.35 (0.19‐1.53), and 1.57 (1.24‐2.0), respectively. However, the hazard ratios evaluated on factors other than cancer in the same organ sites were 0.95 (0.76‐1.18), 1.14 (0.99‐1.3), 1.09 (0.97‐1.22), and 1.12 (0.86‐1.46), respectively.ConclusionThis study shows that among the male genitourinary cancer patients, the significant proportion of deaths occurs due to reasons unrelated to cancer. It can be concluded that the magnitude of death due to only genitourinary cancer is minimal and is not as high as documented in the earlier literature.
Contribution of Discharge Excited Atomic N, N2*, and N2+to a Plasma/Liquid Interfacial Reaction as Suggested by Quantitative Analysis
Authors: Sakakura Tatsuya , Murakami Naoya , Takatsuji Yoshiyuki , Morimoto Masayuki , Haruyama Tetsuya 
Published: April 2019

AbstractElectric‐discharge nitrogen comprises three main types of excited nitrogen species‐atomic nitrogen (Natom), excited nitrogen molecules (N2*), and nitrogen ions (N2+) – which have different lifetimes and reactivities. In particular, the interfacial reaction locus between the discharged nitrogen and the water phase produces nitrogen compounds such as ammonia and nitrate ions (denoted as N‐compounds generically); this is referred to as the plasma/liquid interfacial (P/L) reaction. The Natomamount was analyzed quantitatively to clarify the contribution of Natomto the P/L reaction. We focused on the quantitative relationship between Natomand the produced N‐compounds, and found that both N2* and N2+, which are active species other than Natom, contributed to P/L reaction. The production of N‐compounds from N2* and N2+was enhanced upon UV irradiation of the water phase, but the production of N‐compounds from Natomdid not increase by UV irradiation. These results revealed that the P/L reactions starting from Natomand those starting from N2*and N2+follow different mechanisms.
Genetic structure, phylogeography, and demography of Anadara tuberculosa (Bivalvia) from East Pacific as revealed by mtDNA: Implications to conservation
Authors: Diringer Benoit , Pretell Krizia , Avellan Ricardo , Chanta Cesar , Cedeño Virna , Gentile Gabriele 
Published: April 2019

AbstractWild populations of the pustulose ark, Anadara tuberculosa (Bivalvia), an emblematic species of the East Pacific mangrove ecosystem declined in South American countries (Colombia, Ecuador, and Peru) mainly due to overharvesting and habitat loss or degradation. Understanding the genetic aspects of geographic variations and population structure of A. tuberculosa, currently unknown, appears as a priority to fishery authorities in order to elaborate integrated and collaborative conservation policies for fishery management, aquaculture, and stock enhancement programs. We used mtDNA sequence data to investigate haplotype diversity, genetic structure, and demography of A. tuberculosa. Results indicate genetic homogeneity of populations distributed north and south of the equator, respectively. However, statistically significant differentiation emerged between northern and southern populations with pairwise фST values ranging between 0.036 and 0.092. The oceanic current system acting in the area (Panama Current and Humboldt Current) might play a role in limiting the larval dispersal of the species, still poorly understood. Demography reconstruction supported recent population expansion, possibly started after last glacial maximum. Our results would suggest separate and independent management of populations north and south of the equator.
Rainfall seasonality predicts the germination behavior of a tropical dry‐forest vine
Authors: Martins Adriana A. , Opedal Øystein H. , Armbruster William Scott , Pélabon Christophe 
Published: April 2019

AbstractSeed dormancy is considered to be an adaptive strategy in seasonal and/or unpredictable environments because it prevents germination during climatically favorable periods that are too short for seedling establishment. Tropical dry forests are seasonal environments where seed dormancy may play an important role in plant resilience and resistance to changing precipitation patterns. We studied the germination behavior of seeds from six populations of the Neotropical vine Dalechampia scandens (Euphorbiaceae) originating from environments of contrasting rainfall seasonality. Seeds produced by second greenhouse‐generation plants were measured and exposed to a favorable wet environment at different time intervals after capsule dehiscence and seed dispersal. We recorded the success and the timing of germination. All populations produced at least some dormant seeds, but seeds of populations originating from more seasonal environments required longer periods of after‐ripening before germinating. Within populations, larger seeds tended to require longer after‐ripening periods than did smaller seeds. These results indicate among‐population genetic differences in germination behavior and suggest that these populations are adapted to local environmental conditions. They also suggest that seed size may influence germination timing within populations. Ongoing changes in seasonality patterns in tropical dry forests may impose strong selection on these traits.