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With an increasing annual production, mainly in the Northeast, where there are favorable climatic conditions, the watermelon culture is one of the main generators of foreign exchange and direct and indirect jobs in Rio Grande do Norte. However, pest attacks are among the main factors limiting production, being controlled based on the use of chemicals, which in addition to increasing production costs generate accumulation of chemical residues in the fruits. To overcome this problem, it is necessary to create new alternatives for pest management, especially the whitefly that stands out as one of the main ones. In a scenario where research related to plant-based insecticides opens up perspectives and space for its use in pest control, the present study aimed to evaluate the effect of plant extracts in the control of watermelon whiteflies. Free choice tests for feeding and oviposition were performed using four aqueous extracts (neem, nutsedge, pepper and sorghum) and control (water), with four replicates. The treatments were randomly arranged in cages, forming an arena in which the pest was released. It was concluded that watermelon plants sprayed with neem extracts were less attractive to whiteflies, both for food and for oviposition. [ABSTRACT FROM AUTHOR]

The survival of a human baby is enabled by the attachment behavioral system, as babies seek proximity, directing attachment mediator behaviors toward a figure who provides security. Reflections from the existence of a primary intersubjectivity and evidence of more refined abilities than what was known at the time in which Bowlby formulated this theory conducted us to the hypothesis that attachment is perceived before the period he proposed. We performed a case study in which we analyzed video-recordings from Marina's six months of life. Episodes of differential behavior towards a figure were selected and micro-genetically transcribed. Moreover, mediator behaviors with each of the baby's caregivers were mapped. Results suggested differential behavior towards a discriminated figure since her third month. The dialogical and cultural processes that reverberated in selecting the mother as the attachment figure were discussed. [ABSTRACT FROM AUTHOR]

The present study aims to identify the frequency of use of study and learning techniques by accounting students from the Federal University of Rio Grande do Norte (UFRN). From a non-probabilistic and accidental sampling, composed by 231 students, we sought to identify the frequency of use of study techniques evidenced by Dunlosky et al. (2013) by applying structured questionnaires. In addition to the descriptive analysis, we grouped the data to determine, through the test of average t of Student, if there is a statistically significant difference between the means of groups: gender, shift, employment and academic period. The main results show that, generally, the techniques which are better evaluated for their utility are poorly adopted, as the resolution of practical tests and the practice of distributing study over time. Otherwise, considered low utility strategies, italics and underlined, in addition to the rereading, showed significant occurrence. Regarding the moderate useful strategies, self explanation and elaborative question proved to be predominant. Briefly, the realization of average testing led to verify that there are average differences in gender group as the techniques: summaries, italics/underline, reinterpretation and practical tests; in the study turn group on elaborative questioning techniques and practical tests; and employment groups and course period in relation to the mental image technique. [ABSTRACT FROM AUTHOR]

In the current scenario, where we have continuous demands for advances in both knowledge and technology, technological education is a subject which must be highlighted, because it is through this education a great part of the workforce is formed to take part in an increasingly competitive and qualified labor market. One of the most strategic projects in the teaching area in the country is that advanced by the Institutos Federais (Federal Institutes) having 562 campuses throughout the country. There was a significant growth in staff: in 2002 there were 8.999 teachers, now there are 37.021 (2015). This is a 411.39% increase. In this context, the objective of this study was to analyze the satisfaction showed by teachers working in the Federal Institutes according to Quality of Working Life, in face of the institutes' network expansion in Brazil. The research was conducted with teachers who participated in the II Fórum Mundial de Educação Profissional e Tecnológica, in Florianópolis, 2012. This research is characterized as quantitative, exploratory, descriptive and evaluative (survey). With respect to the instrument, we used the Biosocial and organizational protocol - BPSO-96, by Limongi-França. There were 43 completed questionnaires. Among the 5 evaluated areas, we find the social area presented the lower index of satisfaction (3.193), while the psychological area presented the higher index (6.819). The teacher-student relationship stands out as the highest index (8.233). Although the results could not be generalized to the expressive universe of Technological Teaching in the Federal Institutes, this study's findings show the need of alignment concerning the policy of benefits management and of family and communitarian support in the group studied, showing the quality of the teaching-learning relationship in this scenario. [ABSTRACT FROM AUTHOR]

Fertigation as an alternative of final disposal of domestic sewage is a viable solution, considering the low cost of its implantation, the use of nutrients by the plants and the obtaining of improvements in the soil structure. In this work, the potential of the effluent of the preliminary domestic sewage treatment (PST), the water savings in irrigation and fertilization, will be evaluated, considering its chemical quality for elephant grass (Pennisetum purpureum) fertigation. Each experimental plot consisting of 4 planted lines and 3 water/domestic sewage application grooves, between 0.6 m and 40 m long lines. Two treatments were imposed: T1 - application of conventional chemical fertilization and drinking water, in irrigation; and T2 - application in PST fertigation, being the water requirement of the plants complemented with water from the supply network. The application rate of EDP was established considering its chemical characteristics and the nutritional and water needs of elephant grass. The results showed that the EDP used in elephant grass fertigation, considering an application sheet for to supply 300 kg ha-1 ano-1 of Na, was able to supply 100% P2O5, 33% K2O, and 93% N of elephant grass needs, generating a financial savings of US$ 445.00 ha-1 for fertilization; US$ 624.00 ha-1 of the production costs; and US$ 6.00 ha-1 of the irrigation costs, providing a total saving of US$ 630.00 ha-1 and a saving of 58% of the total water demanded. [ABSTRACT FROM AUTHOR]