ResumoNeste trabalho foram discutidos por meio de uma abordagem qualitativa, instrumentos de aferição de maturidade no desenvolvimento de software com uso de Scrum aplicados a 17 times de uma instituição financeira de economia mista. A prática de medição de maturidade já se faz presente mesmo em times que utilizam método tradicional de desenvolvimento, com utilização de modelos como CMMI -Capability Maturity Model Integration e ISO/IEC 15504 dentre Research, Society and Development, v. 9, n. 2, e119922212, 2020 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.

The contamination on the surface of objects caused by: fungi, microbes, bacteria and viruses (and also coronavirus) can be solved using UV rays and/or ozone gas. For this reason, a UV-Ozone reactor apparatus with low cost was mounted to test two different types of HID (high intensity discharge) lamps: high pressure mercury vapor lamp (HPMVL) and metal halide lamp (MHL), both with nominal power of 400 watts and E-40 (base, screw) were studied as possible method of disinfection. Each lamp used the respective electromagnetic ballasts and both were manufactured by Osram Company. These lamps have two bulb types: the outer bulb which was removed and it is responsible for filtering the ultraviolet wavelengths and the internal bulb (where there is mercury, argon or metal halide confined at high pressure) that is the main source of ultraviolet rays. The complete apparatus was assembled using: aluminum reflector (used as a chamber), two microcomputer fans and a wooden base covered by an aluminum foil. A rubber strip was placed at the edge of the reflector for better adhesion on the aluminum foil (for better confinement ozone gas). The ozone concentration inside the reactor was measured with a monitor, the temperatures were measured near lamps with a thermocouple and a spectroradiometer with optical fiber was used to obtain the wavelengths. The results revealed to the elapsed time of 2 minutes a maximum peak of ozone concentration of 23 ppm for LVMAP, while the MHL presented 4.5 ppm only. The temperature obtained by HPMVL was lower with 31.5 ºC, while the MHL presented 48.0 ºC. The HPMVL presented higher amount of wavelengths at the ranges: UV-A, UV-B and UV-C, while the MHL presented only UV-A. For these reasons, it is suggested to be most promissory the use of HPMVL to combat the coronavirus and other pathogenic microorganisms.

Este trabalho mostra o estudo de dispositivos comerciais de diodo emissor de luz (diodo emissor de luz) e a influência de sua temperatura para alcançar o máximo desempenho. Nos experimentos, duas condições diferentes foram comparadas: (a)LEDs polarizados e imersos em água corrente com 12,5; 25 e 50 mL; e (b) LEDs polarizados em ar atmosférico. Os resultados revelaram que a água corrente pode ser um bom método para redução da temperatura aumentando significantemente os valores de corrente e luminância. Os LEDs polarizados imersos em água corrente revelaram também que 12,5 mL promoveu maior corrente de 228 mA e luminância máxima de 2.146.000 cd/m 2 , enquanto o LED polarizado no ar atmosférico apresentou apenas corrente de 68 mA e luminância abaixo de 1.700.000 cd/m 2 . Este aumento de desempenho mostrou uma pequena diferença nas coordenadas de cromaticidade para obter a mais pura emissão de cor branca.

As incubadoras são reconhecidas como promotoras de empreendimentos inovadores e provedoras de suporte a empreendedores incubados, para o desenvolvimento de produtos e/ou serviços com inovação, para a geração de empresas nascentes reconhecidas pelo termo startups. Este artigo trata da revisão integrativa da literatura, sob a égide da adoção de inovação aberta nas incubadoras, e como estas tratam as fronteiras das redes de relacionamentos e a gestão dos fluxos de entrada e saída de conhecimento - de fora para dentro e de dentro para fora - para melhorar o sucesso das startups. A busca de palavras-chave em bases de dados encontrou 688 artigos, com amostra final de 20 artigos estudados, mostrando que teorias e práticas na adoção de inovação aberta nas incubadoras proporcionam influência positiva nos incubados. Como resultado dos estudos e das contribuições dos autores, evidencia-se a necessidade das incubadoras ativamente participarem de eventos no ecossistema da inovação, buscarem formalizações de parcerias com empresas existentes e prepararem os incubados para terem relacionamentos com investidores e empresas, para troca de conhecimentos e experiências, seja para atuarem em cocriação com as empresas, ou para obterem acessos a investimentos para os desenvolvimentos de seus produtos e/ou serviços inovadores.

This exploratory study was carried out with the objective to know the optical behavior of light-emitting diode (LED) lamps used and the temperature reached by electronic components that compose the driver (electronic circuit situated inside the body LED lamp) responsible to convert electrical alternating current from power line to direct current to operate the LED devices. Then, two different experiments were carried out with LED lamps. In the first experiment, 131 LED lamps used were chosen randomly and bought from household appliances store (bargain market product) presenting different nominal powers, 8, 10, 12 and 15 watts. All LED lamps were polarized at the power line at 127 V and revealed different optical behaviors, such as: not turn-on; flashing light (as strobe effect); flashing light (as strobe effect) with high intensity (more intense than normal); flashing light (as strobe effect) with low intensity (less intense than normal); fast turnon and turn-off only; and turn-on with low intensity of light (less intense than normal). The hypothesis for these behaviors can be attributed by three different behaviors: in lamps not turn-on, this failure can be attributed for dark spots that are created on the surface of LED device. In these lamps, all LED devices are electrically connected in serial. When a LED is inoperative, the electrical current is interrupted for all LED devices; damage to the electronic components caused by internal high temperature confined inside the lamp body during the operation causing electrical oscillations, as observed from different behaviors from flashing light, flashing light with high intensity, flashing light with low intensity and fast turn-on and turn-off only; swelling of the electrolytic capacitors causing low energy storage and varying the electrical current flow, the electrical current for other electronic components altered the normal optical behavior of the LED lamps. In the second experiment, the temperatures of electronic components located in driver were obtained out of body lamp revealing: from 33 (lowest temperature attributed to inductor) to 52.5ºC (highest temperature attributed to electrolytic capacitor). These temperature values represent the ideal or normal condition of operation for electronic components, but, when they are operating inside the lamp body, the found temperature values increased considerably. This characteristic can be better evidenced by strong color change (caused by accumulative temperature during the elapsed days used) on the printed circuit board used in the driver.