Recensão: Fukuko Ando et "Amaterasu". Exposition – performance

Recensão de: Fukuko Ando, "Amaterasu". Exposition – performance

O corpo da Guarda prisional como Órgão de Polícia Criminal e a sua importância na Segurança Interna

The study now presented a research study aimed at the exercise of security activity of the prison guard corps (CGP) in the specific context of the prison system (SP). The study also focused on the phenomenon of globalization and its influence on the current panorama of world crime and their relationship with the prison security object of study was the security activity of the CGP on the current inmate population, as well as the typology of crimes inherent to it and that requires the interpretation of the amendment to the correctional paradigm. In the preparation of the study we have tried to identify the legal framework of the profession based on the main laws and decree-laws governing the institution DGRSP and CGP's career. The difficulties and constraints were analyzed the performance of the security function of the CGP, resulting from the infrastructure, the interaction with the inmates and the need of assigning the status of Criminal Police (OPC). Really connected the relevant importance of OPC so the Corporation can establish a cooperation interaction and sharing of information with different security forces. We noted the importance of the CGP being OPC status before the framework for its action in work situations, specifically, on gatehouses, prison wings, area, and high-complexity operations such as escorts and riot control interventions.The explanation of this study enabled us to assess the importance of the actions of a police officer of the elements of the CGP for maintaining internal security. The analyses and studies were complemented by twenty years of career and exercise of the activity of the master's degree, during which time he served as guard and head of the CGP, the intervention Group and Prison Security, the Lisbon Prison, Prison, Prison of Caxias, Sintra and Monsanto.

Scaling In-Memory databases on multicores

Current computer systems have evolved from featuring only a single processing unit and limited RAM, in the order of kilobytes or few megabytes, to include several multicore processors, o↵ering in the order of several tens of concurrent execution contexts, and have main memory in the order of several tens to hundreds of gigabytes. This allows to keep all data of many applications in the main memory, leading to the development of inmemory databases. Compared to disk-backed databases, in-memory databases (IMDBs) are expected to provide better performance by incurring in less I/O overhead. In this dissertation, we present a scalability study of two general purpose IMDBs on multicore systems. The results show that current general purpose IMDBs do not scale on multicores, due to contention among threads running concurrent transactions. In this work, we explore di↵erent direction to overcome the scalability issues of IMDBs in multicores, while enforcing strong isolation semantics. First, we present a solution that requires no modification to either database systems or to the applications, called MacroDB. MacroDB replicates the database among several engines, using a master-slave replication scheme, where update transactions execute on the master, while read-only transactions execute on slaves. This reduces contention, allowing MacroDB to o↵er scalable performance under read-only workloads, while updateintensive workloads su↵er from performance loss, when compared to the standalone engine. Second, we delve into the database engine and identify the concurrency control mechanism used by the storage sub-component as a scalability bottleneck. We then propose a new locking scheme that allows the removal of such mechanisms from the storage sub-component. This modification o↵ers performance improvement under all workloads, when compared to the standalone engine, while scalability is limited to read-only workloads. Next we addressed the scalability limitations for update-intensive workloads, and propose the reduction of locking granularity from the table level to the attribute level. This further improved performance for intensive and moderate update workloads, at a slight cost for read-only workloads. Scalability is limited to intensive-read and read-only workloads. Finally, we investigate the impact applications have on the performance of database systems, by studying how operation order inside transactions influences the database performance. We then propose a Read before Write (RbW) interaction pattern, under which transaction perform all read operations before executing write operations. The RbW pattern allowed TPC-C to achieve scalable performance on our modified engine for all workloads. Additionally, the RbW pattern allowed our modified engine to achieve scalable performance on multicores, almost up to the total number of cores, while enforcing strong isolation.

A behavioral perspective on the effects of using performance measurement systems in the companies: Evidence from a case study

The effects of PMSs on the people’s behaviour represent a high degree of relevance in the context of an organization performance and success. Thus, motivational and behavioural consequences of performance measurements are far from being totally understood (Franco-Santos et al., 2012). This work project (WP) purposes going further regarding the consequences/effects on people’s behaviour of using PMSs in organizations. The researcher conducted 11 interviews to managers during a nine-month internship as a controller in a Portuguese multi-national company. The evidence from this WP suggests that the way how managers understand a PMS determines a lot the way how they behave. Data also supports that PMSs influences in several ways motivation, perceptions, participation and job-related stress of managers.

Perception of organizational politics and the effect of authenticity and affective commitment on deviance and task performance in contact centers

This study aimed to understand employees’ reactions to organizational politics in Contact Centers. Drawing from a sample of 187 supervisor-employee dyads, we studied the relationship between employees’ perceptions of organizational politics and supervisor-rated task performance and deviance, and mediation effects by authenticity at work and affective commitment. Results indicate that workers tend to react to workplace politics with deviant behavior and worse task performance. We found that the relationship between perceived politics and task performance was mediated by authenticity. The relationship between perceived politics and supervisor-rated deviance was mediated by affective commitment to the organization. Implications for management are discussed.

Performance management practices in Portugal.

Performance management and assessment has returned to the forefront of the public debate in Portugal, at the same time that some international studies point Portugal as a country with bad management practices, highlighting performance management practices. Despite all this attention, there is little information about how those practices are applied in the country. This research’s goal is to assess why performance management systems and practices are so poorly applied in Portugal. To achieve this goal we studied employees’ perception about the topic and diagnose the associated problems. The methodology comprised inductive and qualitative research, in the form of interviews with employees from different professions, industries, hierarchies, and ages. Our findings suggest that performance management failure is related with a procedural problem with three different dimensions: Insufficient Planning, Process & Integrity Issues, and Non-Meritocratic Logic. By exposing the different components of the Portuguese performance management problem, we shed light into the topic and allow organizations to understand and face their performance management systems’ flaws.

The relationship between the education level of successor's and the firm performance in German publicly listed family firms- an empirical analysis

The purpose of this thesis is to investigate how far the education level of the second or third generation of publicly traded German family firms affects the post-succession firm performance. By conducting a correlational and regression design, the aim is to examine how several variables influence the performance of family firms. Performance measures, for example ROA and Tobin’s q and variables, like Education level and succession periods, examine analytically that a positive succession trend will occur. However, with the used model, only a less rigid model shows empirical evidence.

How could marketing automation impact the business performance of Comexposium?

Comexposium continues to exhibit strong growth through global acquisition of key events. However, the company identified the need to increase the renewal rate of its exhibitors. In order to do so, Comexposium determined marketing automation software could have enormous value. However, the company currently does not have the appropriate data to determine to specific returns the software could provide. Thus, this report focused on assessing the impact of marketing automation on the business performance of a B2B enterprise and the best methods to implement and measure it. The main findings were that the software could be of immense value to Comexposium, if the company is ready to invest in internal resources and take the time to adapt to the changes the tool will incur.