Microsatellite stability in human post-mortem tissues

Human identification and forensic criminal casework may involve DNA profiling of decomposed material. Somatic microsatellite (STR) instability may lead to false exclusions and theoretically to false inclusions, both in criminal cases and in human identification. Hence, the somatic and postmortal stability of the actual sequences is crucial to the reliability of such analyses. Somatic STR stability in human tissues has been documented in small series only and the effect of postmortal tissue decomposition on microsatellite stability remains to be elucidated. On this basis, we have systematically searched for somatic STR mutations in 26 deceased humans without signs of decomposition at autopsy and 25 autopsy cases with obvious signs of postmortal decomposition. A blood sample and six tissue samples were collected from each case.Seven STRs were chosen for study, the tetranucleotides HUMVWA31/A, HUMTH01, HUMF13A1, and HUMFES/FPS, and the hyperpolymorphic markers HUMAPOAI1, D11S554 and HUMACTBP2. Denaturing gel electrophoresis was performed on an ABD Prism 377 gene sequencer with Genescan 672 software (Applied Biosystems, Inc.).The bone DNA profile of each case was chosen as the standard DNA profile. All cases gave profiles from additional tissues. By intraindividual comparison of DNA profiles in the cases without signs of degradation we find that the short repetitive sequences under study are stable, that is without evidence of somatic mutations. The cases with varying degree of decomposition display postmortal microsatellite stability, we detect no somatic mutations or other possible postmortal changes that could lead to between-organ non-matches.In conclusion, PCR-based STR analyses are suitable in human identification and forensic casework dealing with different tissues, even when the substrate is heavily decomposed.     

Introduction to Special Issue: Think Tanks in the Nordic Countries

Think tanks in the Nordic countries are now frequently referred to in national media, among decision-makers as well as in academic communities. Based on the literature on think tanks, a consensual and adversarial perspective on their development is advanced. In support of a consensual perspective, the special issue shows that a number of policy think tanks, which play consensual roles in different policy niches, have emerged in the Nordic countries in recent decades. In support of an adversarial perspective, think tank landscapes in the Nordic countries now include advocacy think tanks from both sides of the political spectrum. The mixed think tank landscapes found in the Nordic countries do not constitute a break with consensual policy-making traditions. Nevertheless, a number of privately funded think tanks, which have increased competition for funding, media visibility and political influence, have supplemented established publicly funded think tanks in particular in Scandinavia.     

Are transformational and transactional types of leadership compatible? A two‐wave study of employee motivation

Transformational and transactional leadership strategies have become prominent in public administration research, but it is unclear whether they are compatible or whether they could undermine each other. We examine the combined and interactive effects of transformational and three types of transactional leadership (contingent verbal rewards, material rewards, and sanctions) on employee work motivation, conceptualized as work engagement and intrinsic motivation. Panel analyses using repeated measures of 385 leaders and 3,797 employees show that transformational leadership and contingent verbal rewards increased employee motivation. However, simultaneous use of contingent material rewards undermined the benefits of transformational leadership. Thus, the motivational potential of service‐ or community‐oriented visions was undercut when leaders also appealed to extrinsic material motives. This could help explain why financial incentives do not always have the expected benefits in public organizations. We therefore argue that research and practice should pay more attention to how different leadership strategies work in combination.     

Analysis of Explosives by GC‐UV

A mixture of explosives was analyzed by gas chromatography (GC) linked to ultraviolet (UV) spectrophotometry that enabled detection in the range of 178–330 nm. The gas‐phase UV spectra of 2,4,6‐trinitrotoluene (TNT), 2,4‐dinitrotoluene (DNT), ethylene glycol dinitrate (EGDN), glycerine trinitrate (NG, nitroglycerine), triacetone triperoxide (TATP), and pentaerythritol tetranitrate (PETN) were successfully recorded. The most interesting aspect of the current application is that it enabled simultaneous detection of both the target analyte and its decomposition products. At suitable elevated temperatures of the transfer line between the GC instrument and the UV detector, a partial decomposition was accomplished. Detection was made in real time and resulted in overlaid spectra of the mother compound and its decomposition product. Hence, the presented approach added another level to the qualitative identification of the explosives in comparison with traditional methods that relies only on the detection of the target analyte. As expected, the decomposition product of EGDN, NG, and PETN was NO, while TATP degraded to acetone. DNT and TNT did not exhibit any decomposition at the temperatures used.     

Staff members’ evaluation of inpatients’ motivation for aggression – the roles of staff restrictions and aggression severity

Improved understanding of inpatient aggression can come from systematic assessment of motivation for aggressive incidents. This study investigates staff members’ evaluation of motivation for aggressive incidents, and how such evaluations are influenced by staff restrictions and aggression severity. Staff reports of aggressive incidents in a secure psychiatric unit were collected in clinical practice over a ten-year period (2006–2015). Motivation for aggression was assessed with the Aggressive Incident Motivation Evaluation Scale, measuring irritable, instrumental, and defensive dimensions. Information about staff restrictions was collected with the Staff Observation Aggression Scale – Revised, and severity was rated with the Visual Analog Scale. Multilevel analyses of 2649 aggressive incidents, committed by 67 inpatients, revealed greater variation in aggression motivation across incidents than between individual patients. Staff restrictions preceding the aggressive incident and rating of severity were positively related to staffs’ evaluation of motivation for aggression, but their impacts differed across motivational dimensions. Staff reports of motivation provide important additional information beyond current standard report forms. Systematically evaluating motivation is essential to risk management, and may contribute to develop more fine-tuned interventions for preventing and managing aggression in inpatient settings.     

Norway

European Journal of Political Research -     

The Role of the Public Manager: Loyalty,Autonomy or Advocacy?

It is argued that the role of the public bureaucracy must be analysed along at least two dimensions. One dimension concerns the relationship between politicians and bureaucrats, i.e. the possible conflict between political loyalty and autonomy. The other dimension concerns the relationship between citizens and bureaucracy, i.e. the possible conflict between openness towards citizens and bureaucratic closedness. With the aid of data from a survey of 407 agency heads in Norwegian municipalities, it was possible to group different bureaucrats along the two dimensions. Four categories emerged from the analysis; a political bureaucrat, an autonomous bureaucrat, the "classic" administrator and the "linking pin". An attempt to predict group membership was made using variables on the societal, organizational as well as individual levels. This attempt was only partially successful, indicating that there is a need for other independent variables to explain group membership.