75,522 research outputs found
N-(3-Nitrobenzylidene)aniline
No full textIn the title compound, C13H10N2O2, a Schiff base derivative, the dihedral angle between the two aromatic rings is 31.58 (3)°. The C=N double bond is essentially coplanar with the nitrophenyl ring. The torsion angle of the imine double bond is 175.97 (13)°, indicating that the C=N double bond is in a trans configuration. The crystal structure is stabilized by C-H...O contacts and [pi]-[pi] interactions (centroid-centroid distances of 3.807 and 3.808 Å). Key indicators: single-crystal X-ray study; T = 173 K; mean σ(C–C) = 0.002 Å; R factor = 0.034; wR factor = 0.093; data-to-parameter ratio = 10.3
The Benefits of Being Economics Professor A (and not Z)
No full textAlphabetic name ordering on multi-authored academic papers, which is the convention in the economics discipline and various other disciplines, is to the advantage of people whose last name initials are placed early in the alphabet. As it turns out, Professor A, who has been a first author more often than Professor Z, will have published more articles and experienced afaster growth rate over the course of her career as a result of reputation and visibility. Moreover, authors know that name ordering matters and indeed take ordering seriously: Several characteristics of an author group composition determine the decision to deviate from the default alphabetic name order to a significant extent.performance measurement, incentives, economists, name ordering
Final word on Jersey Dutch
No full textIn this article, William Z. Shetter compares and contrasts the dialects that developed between different Dutch colonies in the New World. He explores in-depth the nuances of Jersey Dutch, and provides theories to explain how Dutch and colonial languages blended. The article is reprinted from American Speech, December 1958, Volum XXXIII, No. 4
Candidate gene analysis in an on-going genome-wide association study of attention-deficit hyperactivity disorder: suggestive association signals in ADRA1A.
No full textOBJECTIVES:
Attention-deficit hyperactivity disorder (ADHD) is a highly heritable, common developmental disorder. Although a few confirmed associations have emerged from candidate gene studies, these have shown the same limitations that have become evident in the study of other complex diseases, often with inconsistent and nonreplicated results across different studies.
METHODS:
In this report, 27 ADHD candidate genes were explored in greater depth using high-density tag single nucleotide polymorphism (SNP) genotyping. Association with 557 SNPs was tested using the transmission disequilibrium test in 270 nuclear pedigrees selected from an ongoing ADHD genetic study that includes all disease subtypes.
RESULTS:
SNPs in seven genes including SLC1A3, SLC6A3, HTR4, ADRA1A, HTR2A, SNAP25, and COMT showed a nominal level of association with ADHD (P values <0.05), but none remained significant after a stringent correction for the total number of tests performed.
CONCLUSION:
The strongest signal emerged from SNPs in the promoter region (rs3808585) and in an intron (rs17426222, rs4732682, rs573514) of ADRA1A, all located within the same haplotype block. Some of the SNPs in HTR2A and COMT have already been reported by others, whereas other SNPs will need confirmation in independent samples
Small-scale production of hydrogen via auto-thermal reforming in an adiabatic packed bed reactor:Parametric study and reactor's optimization through response surface methodology
No full textIn this work, a two-dimensional (2-D) heterogeneous reactor model for ATR process is presented. In order to authenticate the developed reactor model outputs, literature results as well as thermodynamic findings produced by employing chemical equilibrium with applications (CEA) software were compared with the model predictions and an excellent agreement was evidenced that corroborates the model's accurate predictive capability. Response surface methodology combined with central composite design was used to investigate the significance of operational parameters on the performance of the ATR process and Parametric optimization was performed to find the optimal operating conditions. Further insights into the ATR process were obtained by studying the effect of temperature, pressure, S/C, oxygen to carbon ratio (O/C) and gas mass flow velocity (Gs) on CH4 conversion, H2 yield (wt. % of CH4) and H2 purity. It was concluded that 973 K, 1.5 bar, S/C of 3.0, O/C of 0.45 and Gs of 0.15 kg/m2s resulted in CH4 conversion and H2 purity up to 97.6% and 71.8%, respectively.</p
The Future of Pharmacy Practice Research
No full textThe chapter starts by outlining the current and future scenario related to pharmacy practice research. This chapter then sets the scene by discussing issues that are pertinent for practice research. These issues are changes in population demographics; changes in technology, the role of the pharmacy as an institution and consumer behaviour; as well as changes in the pharmacy profession. It also outlines the major shifts in pharmacy practice research, which include interprofessional collaboration and teamwork with patients, describing and measuring outcomes of interventions as well as patients’ cultural diversity. It concludes by drawing attention to methodologies that would be most commonly used in future pharmacy practice research. Some of the future methodological challenges could be the emergence of big and complex data sets, dealing with electronic health records and pharmacy practice researchers’ adoption of a myriad of mixed methodologies.</p
Consumer Intentions to Accept and Use Mobile Advertising
No full textMobilne naprave se vse bolj vključujejo v življenja ljudi. S tem so oglaševalci pridobili nove priložnosti za komuniciranje s svojimi strankami, podjetja pa možnosti za oglaševanje svojih produktov in storitev na personaliziran način. Mobilno oglaševanje je tako pritegnilo pozornost oglaševalcev in raziskovalcev. Kljub dejstvu, da potrošniki že dolgo za svojimi mobilnimi napravami preživijo veliko časa, pa tržniki še vedno iščejo načine, kako bi v celoti izkoristili vse prednosti tega medija. Raziskovalci so v zadnjem času izvedli več študij na področju presoje in napovedovanja odnosa potrošnikov do mobilnega oglaševanja, toda nekatere nejasnosti še vedno obstajajo. Slednje še posebej velja za Pakistan, kjer je bilo opravljenih zelo malo raziskav na področju mobilnega oglaševanja. Pričujoča disertacija zato teoretsko obravnava presojo namer potrošnikov o sprejetju in uporabi mobilnega oglaševanja in vključuje empirično študijo v Pakistanu. Tema je relativno mlada in še premalo raziskana, zato prinaša številne priložnosti za razvoj novih in razširitev obstoječih teorij. Pričujoča disertacija želi razširiti obstoječo teorijo, to je Združeno teorijo o tehnološkem sprejetju in uporabi. Za to je bil oblikovan mešan raziskovalni pristop (ang. Mixed Methods Approach), v katerem se rezultati ustvarijo s kvantitativno in kvalitativno analizo podatkov, z namenom identifikacije ključnih dejavnikov, ki lahko vplivajo na namero potrošnikov o sprejetju mobilnega oglaševanja. Cilj disertacije je premostiti vrzel v znanju na področju presoje namere potrošnikov in njihovega odnosa do uporabe mobilnega oglaševanja. Teoretski in empirični rezultati so izpostavili nekaj ključnih dejavnikov (kot na primer pričakovan trud, pričakovani učinek, zaznan užitek, zaznana nadležnost in personalizacija), ki vplivajo na namero potrošnikov o sprejetju mobilnega oglaševanja. Poleg tega so rezultati razkrili tudi odnos med potrošnikovo namero sprejetja in sprejetjem mobilnega oglaševanja.The world has witnessed a high level of mobile device penetration in people’s lives. This has not only created an opportunity for marketers to communicate with their customers but has also enabled companies to advertise their products and services in personalized way. Due to this, mobile advertising has got the attention of both marketers and researchers. However, marketers have been struggling to fully exploit the benefits of this medium, even though consumers spend a considerable amount of their time on mobile devices. Recently, researchers have conducted various studies into ways to assess and predict consumer attitudes towards mobile advertising, but there is still ambiguity in this area. This is particularly the case in Pakistan, where very little research has been conducted in the area of mobile advertising. The current thesis is targeted towards assessing consumer intentions to accept and use mobile advertising. This under-researched topic is still in its infancy and there are lots of opportunities to not only come up with new theories but also extend the existing ones. The current thesis attempts to extend the existing unified theory of acceptance and use of technology (UTAUT). To do this, a mixed methodological approach was adopted where both quantitative and qualitative analysis techniques were applied to the data in order to uncover crucial factors that can affect consumer intentions to accept and use mobile advertising. The goal of the current thesis is to bridge the knowledge gap by assessing consumer intentions and actual behaviour towards mobile advertising. The results highlight some of the crucial factors (such as effort expectancy, performance expectancy, perceived enjoyment, perceived irritation, and personalization) that can affect consumer intentions to accept and use mobile advertising. In addition to this, the results also highlight the relationship between consumer intentions to accept and use mobile advertising
Logarithmic variance profiles and the corresponding f-1 spectra of temperature fluctuations in turbulent Rayleigh-Bénard convection
No full textWe report experimental results for the temperature variance 2(z) and the corresponding frequency spectra P(f) in turbulent Rayleigh-Bénard convection (RBC) in a cylindrical sample of aspect ratioT= D/L = 1:00 (D = 1:12 m is the diameter and L = 1:12 m the height). The measurements were conducted in the Rayleigh-number range 1011 < Ra < 1:35 1014 and Pr ' 0:8. For Ra = 1:35x1014, 2(z) could be described well by a logarithmic dependence on the vertical position z in a range of z 1 < z < z 2 with z 1 ' 70 and z 2 = 0:1L. Here L=(2Nu) is the thickness of a thin thermal sublayer adjacent to the horizontal plate where the heat flux (denoted by the Nusselt number Nu) is carried mostly by thermal diffusion. In the log layer, we found that the temperature spectra had a significant frequency range over which P(f) f with close to 1. As Ra decreased, increased so that the log layer became thinner. At Ra = 2:05 1011, z 2 < z 1 and therefore there was no range for a log layer. Correspondingly, the temperature spectrum near the horizontal plate did not have the f1 scaling form either
Statistics of the subgrid scales after the shock-turbulence interaction
No full textThe interaction of a normal shock with isotropic turbulence (IT) represents a basic problem for studying some of the phenomena associated with high speed flows, such as hypersonic flight, supersonic combustion and Inertial Confinement Fusion (ICF). In general, in practical applications, the shock width is much smaller than the turbulence scales and the upstream turbulent Mach number is modest. In this case, recent high resolution shock-resolved Direct Numerical Simulations (DNS) (Ryu and Livescu, J. Fluid Mech., 756, R1, 2014) show that the interaction can be described by the Linear Interaction Approximation (LIA). By using LIA to alleviate the need to solve the shock, DNS post-shock data can be generated at much higher Reynolds numbers than previously possible. Here, such results with Taylor Reynolds number around are used to investigate the properties of the subgrid scales (SGS). In particular, it is shown that the shock interaction decreases the asymmetry of the SGS dissipation PDF as the shock Mach number increases, with a significant enhancement in size of the regions and magnitude of backscatter
International New Ventures Market Expansion through Collaborative Entry Modes: A Study of the Experience of Indian and British ICT Firms
No full textThe purpose: The purpose of this article is to examine the role that different collaborative entry modes play in how international new ventures expand into international markets.
Methodology/Approach: The article’s arguments are based on the international new ventures and social network literatures. In order to investigate the entry modes adopted by British and Indian information and communication technology (ICTs) SMEs into each other markets, the paper outlines the results of qualitative semi-structured interviews with the key decision-makers of ten British and ten Indian ICT firms.
Findings: The findings contribute to the relatively under-researched area of how international new ventures (INVs) enter foreign markets through collaborative entry mode. The findings suggest that INVs utilize both equity and non-equity modes of collaboration to expand their international operations. The findings also indicate that financial and non-financial resources always limit the market expansion and internationalization of such companies. Against this background, the INVs rely on building collaboration as one of the safest methods for foreign market expansion and successful internationalization. The collaborative entry mode is enhanced by entrepreneurs’ prior experience, social ties and knowledge of the foreign market.
Research limitations/implications: Set against the backdrop of an ever-increasing trend of internationalization of SMEs, the article offers important implications for understanding the conditions and factors behind the choice of collaborative and non-collaborative entry modes by international new ventures in particular and SMEs more broadly.
The article is one of the few studies that have examined the role of collaborative entry modes choice adopted by International New Ventures from two of the largest economies- UK and India
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