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The purpose of this paper is to use Maguire’s (2003) theory of police organizations to explain whether police agencies dedicate specific personnel to cybercrime response.

Data from this study come from the 2013 Law Enforcement Management and Statistics survey. Maguire’s (2003) theory of the organizational structure of police organizations is used to measure organizational variables related to context, complexity and control. Logistic regression is used to examine whether these organizational characteristics are related to cybercrime response.

The results suggest that organizational context, complexity and control are related to cybercrime response. Specifically, in terms of context, larger agencies, agencies whose officers engage in more non-routine tasks, and agencies governed by an active collective bargaining agreement are more likely to dedicate specific resources to cybercrime. In terms of complexity, agencies with more hierarchical layers, agencies that utilize more specialization and agencies that make greater use of civilian employees are more likely to dedicate specific personnel to cybercrime. Finally, regarding control, agencies that assign non-sworn personnel to administrative tasks are more likely to dedicate resources to cybercrime response.

This study is one of the first to use this framework to examine the relationship between organizational characteristics and cybercrime response. It shows that this perspective can be useful for understanding police organizations and police policies, programs and strategies.

The article first examines whether police hiring decisions represent a zero-sum game where hires from one under-represented group (e.g. White women) reduce the number of hires made from other under-represented groups (non-White men and/or non-White women). Second, we explore whether agencies that hire more members of underrepresented groups achieve more diverse applicant pools in future hiring cycles. Negative binomial regression techniques are used in both analyses.

Data for this study come from the Commission on Accreditation for Law Enforcement Agencies (CALEAs) from 2011 to 2016. These data are divided into two periods: Period A (2011–2013) and Period B (2014–2016). The two periods are combined to assess a zero-sum effect. Then, Period A data on hiring decisions is used to estimate the diversity in applicant pools in Period B.

Results from this study provided little evidence of a zero-sum effect. It does not seem that agencies that hire from one under-represented group are less likely to hire from others. Instead, agencies that have shown a commitment to diversification are more likely to make additional hires from under-represented groups. We also found evidence of a relationship between Period A hires and Period B applicant pools for Hispanic women, but not for other groups. Broadly, we found that agencies where a larger share of officers are women were more likely to hire more women applicants.

Previous research examining zero-sum effects in hiring rely on officer rosters rather than specific applicant and hiring data. The data used in this study allows for a more precise examination of hiring decisions, and allows us to link hiring decisions to future applicant pool composition.

The purpose of this paper is to study the wave propagation in thermoelastic diffusive medium.

The present paper deals with the numerical study of wave propagation in coupled thermoelastic diffusive medium by using DQ method together with fourth‐order Runge‐Kutta method.

The paper finds solutions of displacements, temperature change and concentration.

The paper can be sued to solve non‐linear partial differential equations.

The solutions of displacements, temperature change and concentration are illustrated graphically. Numerical examples show that the method yields very good results.

Recently, a new formulation has been introduced for non-local mechanics in terms of fractional calculus. Fractional calculus is a branch of mathematical analysis that studies the differential operators of an arbitrary (real or complex) order and is used successfully in various fields such as mathematics, science and engineering. The purpose of this paper is to introduce a new fractional non-local theory which may be applicable in various simple or complex mechanical problems.

In this paper (by using fractional calculus), a fractional non-local theory based on the conformable fractional derivative (CFD) definition is presented, which is a generalized form of the Eringen non-local theory (ENT). The theory contains two free parameters: the fractional parameter which controls the stress gradient order in the constitutive relation and could be an integer and a non-integer and the non-local parameter to consider the small-scale effect in the micron and the sub-micron scales. The non-linear governing equation is solved by the Galerkin and the parameter expansion methods. The non-linearity of the governing equation is due to the presence of von-Kármán non-linearity and CFD definition.

The theory has been used to study linear and non-linear free vibration of the simply-supported (S-S) and the clamped-free (C-F) nano beams and then the influence of the fractional and the non-local parameters has been shown on the linear and non-linear frequency ratio.

A new parameter of the theory (the fractional parameter) makes the modeling more fixable – this model can conclude all of integer and non-integer operators and is not limited to special operators such as ENT. In other words, it allows us to use more sophisticated mathematics to model physical phenomena. On the other hand, in the comparison of classic fractional non-local theory, the theory applicable in various simple or complex mechanical problems may be used because of simpler forms of the governing equation owing to the use of CFD definition.

The purpose of this paper is to study the transient thermoelastic interactions in a nonlocal rotating magneto-thermoelastic medium with temperature-dependent properties. Three-phase-lag (TPL) model of generalized thermoelasticity is employed to study the problem. An initial magnetic field with constant intensity acts parallel to the bounding plane. Therefore, Maxwell's theory of electrodynamics has been effectively introduced and the expression for Lorentz's force is obtained with the help of modified Ohm's law.

The normal mode technique has been adopted to solve the resulting non-dimensional coupled field equations to obtain the expressions of physical field variables.

For uniformly distributed thermal load, normal displacement, temperature distribution and stress components are calculated numerically with the help of MATLAB software for a copper material and the results are illustrated graphically. Some particular cases of interest are also deduced from the present study.

Influences of nonlocal parameter, rotation, temperature-dependent properties, magnetic field and time are carefully analyzed for mechanically stress free boundary and uniformly distributed thermal load. The present work is useful and valuable for analysis of problem involving thermal shock, nonlocal parameter, temperature-dependent elastic and thermal moduli.