75,548 research outputs found
Assessing the outcomes of IWMI’s research and interventions on irrigation management transfer
No full textIrrigation management / Participatory management / Privatization / Water users associations / Farmers associations / Gender
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
Correlation analysis of geomagnetic parameters based on seasonal changes / Nur Suhaili Abdul Samad
No full textGeomagnetic parameters at different seasons and different latitudes have different variations. The focus on this paper is mainly to analyze the correclation of geomagnetic parameters which are horizontal (H), declination (D) and vertical (Z) based on seasonal changes
Simulation and design of optimization of magneto rheological control valve
No full textMagneto-rheological (MR) Valve is one of the devices generally used to control the speed of Hydraulic actuator using MR fluid. The performance of valve depends on the magnetic circuit design. Present study deals with a new design of MR valve. The finite element analysis is carried out on this valve to optimize its design. The design of the magnetic circuit is accomplished by magnetic finite element software such as Finite Element Method Magnetic (FEMM). The Model dimensions of MR valve, material properties and the circuit properties of valve coil are taken into account. The results of analysis are presented in terms of magnetic strength and magnetic flux density. The valve can be operated with variable flow rate by varying the current. It is found that the current is inversely proportional to the flow rate. High current low flow rate and vice versa
Exploring customer’s mobile banking experiences and expectations among generations X, Y and Z
No full textAbstractCustomer’s adoption of mobile banking portrays tremendous growth in developing countries. However, it seems that there is a lack of studies about customer’s experiences and expectations on mobile banking services, and more research is needed considering generational differences between mobile banking customers in Iran. The purpose of this study is to explore the customer’s mobile banking experiences and expectations among generations X, Y, and Z in a developing country context, Iran. Twenty-seven in-depth interviews were conducted from active users of mobile banking services with a generational split in Iran. A qualitative content analysis was employed to understand customer’s mobile banking experiences and expectations. This study identified specific features of different generations regarding their experiences and expectations of mobile banking services. Each generation displayed distinct characteristics of mobile banking. Generation X customers perceive mobile banking as complicated; generation Y customers prefer to use mobile banking for quick payments, while generation Z customers want to have more customized services and ranked mobile banking as a spontaneous solution. Every generation expects different features to focus on: generation X expects to have more user-friendly functions; generation Y prefers to have an online transaction tracker while generation Z appeals to have enhanced the user interface. This study offers a detailed strategic starting point for management to tailor dynamic customer expectations among different generations.Abstract
Customer’s adoption of mobile banking portrays tremendous growth in developing countries. However, it seems that there is a lack of studies about customer’s experiences and expectations on mobile banking services, and more research is needed considering generational differences between mobile banking customers in Iran. The purpose of this study is to explore the customer’s mobile banking experiences and expectations among generations X, Y, and Z in a developing country context, Iran. Twenty-seven in-depth interviews were conducted from active users of mobile banking services with a generational split in Iran. A qualitative content analysis was employed to understand customer’s mobile banking experiences and expectations. This study identified specific features of different generations regarding their experiences and expectations of mobile banking services. Each generation displayed distinct characteristics of mobile banking. Generation X customers perceive mobile banking as complicated; generation Y customers prefer to use mobile banking for quick payments, while generation Z customers want to have more customized services and ranked mobile banking as a spontaneous solution. Every generation expects different features to focus on: generation X expects to have more user-friendly functions; generation Y prefers to have an online transaction tracker while generation Z appeals to have enhanced the user interface. This study offers a detailed strategic starting point for management to tailor dynamic customer expectations among different generations
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
Stable ischemic heart disease in women: current perspectives
No full textFatima Samad,1 Anushree Agarwal,2 Zainab Samad3 1Aurora Cardiovascular Services, Aurora Sinai/Aurora St Luke’s Medical Centers, University of Wisconsin School of Medicine and Public Health, Milwaukee, WI, 2Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, CA, 3Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC, USA Abstract: Cardiovascular disease is the leading cause of death in women accounting for 1 in every 4 female deaths. Pathophysiology of ischemic heart disease in women includes epicardial coronary artery, endothelial dysfunction, coronary vasospasm, plaque erosion and spontaneous coronary artery dissection. Angina is the most common presentation of stable ischemic heart disease (SIHD) in women. Risk factors for SIHD include traditional risks such as older age, obesity (body mass index [BMI] >25 kg/m2), smoking, hypertension, dyslipidemia, cerebrovascular and peripheral vascular disease, sedentary lifestyle, family history of premature coronary artery disease, metabolic syndrome and diabetes mellitus, and nontraditional risk factors, such as gestational diabetes, insulin resistance/polycystic ovarian disease, pregnancy-induced hypertension, pre-eclampsia, eclampsia, menopause, mental stress and autoimmune diseases. Diagnostic testing can be used effectively to risk stratify women. Guidelines-directed medical therapy including aspirin, statins, beta-blocker therapy, calcium channel blockers and ranolazine should be instituted for symptom and ischemia management. Despite robust evidence regarding the adverse outcomes seen in women with ischemic heart disease, knowledge gaps exist in several areas. Future research needs to be directed toward a greater understanding of the role of nontraditional risk factors for SIHD in women, gaining deeper insights into the sex differences in therapeutic effects and formulating a sex-specific algorithm for the management of SIHD in women. Keywords: stable ischemic heart disease, wome
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
Transition to turbulence in a qblique shock-wave/boundary-layer interaction at M=15
No full textDirect numerical simulations are carried out for different forcing techniques to trigger transition during the interaction between an oblique shock-wave and a laminar boundary-layer at M = 1.5. Three forcing methods are used: a) forcing of oblique unstable modes, whose shape and behaviour are determined by the local linear stability theory, b) broadband free-stream acoustic disturbances, and c) a cold plasma flow control device. While the oblique-mode breakdown is dominant for low-amplitude forcing, long streaky structures drive the transition process in a high-amplitude disturbance environment. LES are also performed on the experimental setup by the Institute of Theoretical and Applied Mechanics (ITAM) from Novosibirsk State University with cold plasma actuation. As well as the disturbance type, the effect of Reynolds number and forcing amplitude will be investigated
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