Conhecimento Científico e Tecnológico Para o Veículo Elétrico no Brasil: Uma Análise a Partir Das Instituições de Ciência e Tecnologia e Seus Grupos de Pesquisa

A indústria automobilística tem sido desafiada a desenvolver veículos mais eficientes e menos poluentes. Os veículos elétricos (VE) seriam uma resposta considerando que não emitem gases poluentes. Entretanto, este segmento ainda não se consolidou: há incerteza de mercado e inúmeras indefinições tecnológicas. A questão que se coloca: o Brasil teria condições de atuar no segmento dos VEs? Teria potencial para contribuir com o desenvolvimento de tecnologias? Este artigo busca identificar e analisar o tipo de conhecimento desenvolvido nas Instituições de Ciência e Tecnologia (ICTs) brasileiras que são (ou que possam ser) aplicados ao desenvolvimento dos VEs. Dentre os 31 grupos de pesquisa mapeados, notamos que há pesquisas sobre mobilidade elétrica no país, porém isoladas, sem coordenação ou alinhamento geral, com pouco relacionamento com a iniciativa privada e quase inexistência de patentes. Entretanto, identificamos avanços na formação de recursos humanos especializados bem como na P&D de componentes, resultado das atividades destes grupos

Nitrous oxide emissions in eucalyptus production under monoculture and integrated systems in Sinop /MT.

The main cause of climate change is the increase in greenhouse gases (GHG) emissions caused by activities such as agriculture, and nitrous oxide (N2O) is one of the main gases emitted by these activities. Therefore, the objective of this study was to evaluate N2O emissions of Eucalyptus urograndis under monoculture and integrated production systems

Nursing telehealth, caring from a distance

Tele-technology in the health care system is prognosed to be able to produce better health, better care at lower cost (Triple aim). This paper will discuss the validity of this prognosis, which in many ways is considered as some sort of diagnosis of the conditions concerning triple aim in relation to Tele-technology. Tele-technology in the health care system covers three different types of technological settings: telecare, telehealth and telemedicine. This paper will disclose the different meanings of telecare, telehealth and telemedicine and discusses how nursing informatics can accomplish and gain from this disclosure. Theoretically and methodologically the paper is based on post-phenomenological readings and reflections, where use, practice, users, participants, values and knowledge systems are addressed on an equal level in order to understand technology and how we act appropriately through and with technology

Herbicide evaluation to control weeds in irrigated chickpea (Cicer rietinum L.) at the region Ci�nega of Chapala, M�xico [Evaluaci�n de herbicidas para el control de malezas en garbanzo cicer arietinum L.) de riego en la regi�n ci�nega de chapala, m�xico]

Use of herbicides to control weeds is an available option in irrigated chickpea crop at the region Cienega of Chapala, Jalisco State, Mexico. In this work five herbicides: alachlor, oxyfluorfen, pendimethalin, prometryn and trifluralin were evaluated and applied in pre-emergenge in order to know their control on the broadleaf weeds species Amaranthus sp., Chenopodium spp., Portulaca oleracea, Physalis costomati and Euphorbia heterophylla in kabuli chickpea (Cicer arietinum L.) under irrigation conditions during the seasons 2003-04 and 2004-05. Treatments were tested in a randomized complete block design with four replications; plot size consisted on four rows 5 meters long and 76 cm between rows. For each herbicide was calculated the percentage of each weed control. For each weed carried out analysis of variance and the Tukey test. Statistical differences among herbicides treatments over the weed species were found, both different percentages of control. The most effective herbicides were Pendimethalin 3.5 L.ha -1 and Trifluralin 3.5 L.ha -1, with percentages of control from 77 to 95. There were not toxicity by herbicides on chickpea crop

Herbicide evaluation to control weeds in irrigated chickpea (Cicer rietinum L.) at the region Ciénega of Chapala, México [Evaluación de herbicidas para el control de malezas en garbanzo cicer arietinum L.) de riego en la región ciénega de chapala, méxico]

Use of herbicides to control weeds is an available option in irrigated chickpea crop at the region Cienega of Chapala, Jalisco State, Mexico. In this work five herbicides: alachlor, oxyfluorfen, pendimethalin, prometryn and trifluralin were evaluated and applied in pre-emergenge in order to know their control on the broadleaf weeds species Amaranthus sp., Chenopodium spp., Portulaca oleracea, Physalis costomati and Euphorbia heterophylla in kabuli chickpea (Cicer arietinum L.) under irrigation conditions during the seasons 2003-04 and 2004-05. Treatments were tested in a randomized complete block design with four replications; plot size consisted on four rows 5 meters long and 76 cm between rows. For each herbicide was calculated the percentage of each weed control. For each weed carried out analysis of variance and the Tukey test. Statistical differences among herbicides treatments over the weed species were found, both different percentages of control. The most effective herbicides were Pendimethalin 3.5 L.ha -1 and Trifluralin 3.5 L.ha -1, with percentages of control from 77 to 95. There were not toxicity by herbicides on chickpea crop