Results 21 to 30 of about 1,265 (217)

Análise técnica e econômica do forwarder em três subsistemas de colheita de florestas de eucalipto Technical and economic analysis of a forwarder under three eucalyptus forest harvest subsystems

Revista Árvore, 2004
O objetivo deste trabalho foi avaliar técnica e economicamente o forwarder em três subsistemas de colheita em florestas de eucalipto. A análise técnica englobou um estudo de tempos e movimentos e de produtividade.
Luciano José Minette, Fábio Murilo Tieghi Moreira, Amaury Paulo de Souza, Carlos Cardoso Machado, Kátia Regina Silva   +4 more
doaj   +1 more source

Propriedades físicas e mecânicas de latossolos em diferentes manejos florestais Physical and mechanical properties of Latosols in different forest management

Ciência e Agrotecnologia, 2010
Com a intensa mecanização das operações florestais, a compactação do solo, causada pelo tráfego, pode ser limitante para a obtenção de maiores produtividades.Objetivou-se, neste estudo, avaliar as alterações em algumas propriedades físicas e mecânicas ...
Arystides Resende Silva, Moacir de Souza Dias Junior, Fernando Palha Leite   +2 more
doaj   +1 more source

Does agricultural mechanization promote green development? evidence from an entropy-weighted provincial panel in China (2011–2023)

International Journal of Agricultural Sustainability
While agricultural mechanization is central to rural transformation in China, its ecological implications remain unclear. This study examines whether mechanization promotes agricultural green development or induces input-intensive ecological trade-offs ...
Cheng Yang, Jun Wen, Haifeng Shi, Guimei Huang   +3 more
doaj   +1 more source

Târgul forestier „Forest România” – 28-30 septembrie 2017, Zizin, jud. Brașov [„Forest România” - September 28-30, 2017, Zizin, Brașov County] [PDF]

Bucovina Forestieră, 2017
The paper presents the second edition of Forest Romania trade fair, which took place between September 28-30, 2017 in Zizin, near Brașov, as seen through the eyes of three forestry students.
Arsene G., Dragu A., Sîrbu S.
doaj   +1 more source

Technical and Economical Evaluations of Maritime Pine Plantations in Western Black Sea Region of Turkey

Forestist, 2012
In this study, technical and economical evaluations of the maritime pine (Pinus pinaster Aiton.) plantations, established at Bartın-Karaçaydere between the years of 1979 and 1984, were made.
Korhan Tunçtaner, İsmet Daşdemir, Murat Ertekin, Halil Barış Özel   +3 more
doaj   +1 more source

Camada de resíduos florestais e pressão de preconsolidação de dois latossolos Forest residuals layer in the preconsolidation pressure of two Oxisols

Pesquisa Agropecuária Brasileira, 2007
O objetivo deste trabalho foi avaliar o efeito da camada de resíduos da colheita sobre a pressão de preconsolidação, com o uso dos modelos de capacidade de suporte de carga de um Latossolo Amarelo e de um Latossolo Vermelho.
Arystides Resende Silva, Moacir de Souza Dias Junior, Fernando Palha Leite   +2 more
doaj   +1 more source

Economic basis and an experience of plantation forest growing in the Central Volga Region [PDF]

Сибирский лесной журнал, 2018
Conceptual-methodological and economic bases of plantation forest growing are developed. The mathematical models of the dynamics of the productivity of stands of different tree species in the rich types of the forest-growing conditions of the Middle ...
Yu. P. Demakov, T. V. Nureeva, A. S. Puryaev, V. G. Krasnov   +3 more
doaj   +1 more source

Developmental programmes drive cellular plasticity, disease progression and therapy resistance in lung adenocarcinoma

Molecular Oncology, EarlyView.
This study shows that lung adenocarcinomas exploit developmental branching morphogenesis to acquire a therapy resistant basal‐like tumour cell state. This process was found to be regulated by combined TP53 loss‐of‐function and type‐I interferon signalling, identifying a novel axis for biomarker and therapeutic target discovery.
Kamila J Bienkowska, Stephany Gallardo, Nur S. Zainal, Leena Arora, Matthew Ellis, Maria‐Antoinette Lopez, Judith Austine, Sai Pittla, Serena J Chee, Aiman Alzetani, Emily C Shaw, Christian H Ottensmeier, Gareth J Thomas, Christopher J Hanley   +13 more
wiley   +1 more source

Avaliação operacional e econômica do "feller-buncher" em dois subsistemas de colheita de florestas de eucalipto Technical and economic analysis of a feller-buncher in two harvest subsystems of eucalyptus forests

Revista Árvore, 2004
O objetivo deste trabalho foi avaliar técnica e economicamente o feller-buncher em dois subsistemas de colheita em florestas de eucalipto. A análise técnica englobou um estudo de tempos e movimentos e de produtividade.
Fábio Murilo Tieghi Moreira, Amaury Paulo de Souza, Carlos Cardoso Machado, Luciano José Minetti, Kátia Regina Silva   +4 more
doaj   +1 more source

Longitudinal genome‐wide aneuploidy measurements in circulating cell‐free DNA to predict lack of benefit from pembrolizumab in patients with metastatic urothelial cancer

Molecular Oncology, EarlyView.
Many patients with urothelial cancer do not benefit from treatment with pembrolizumab, while at risk of severe side effects. Changes in the levels of circulating tumor DNA early during treatment, measured by a simple and affordable assay that can be easily implemented in the clinic, can be used as a prognostic tool to identify these patients.
Youssra Salhi, Stavros Makrodimitris, Sandra van Wilpe, Iris te Paske, Vanja de Weerd, Corine M. Beaufort, Hans M. Westgeest, Jens Voortman, Maureen J. B. Aarts, Maud Rijnders, Astrid A. M. van der Veldt, Ronald de Wit, Niven Mehra, Saskia M. Wilting, Debbie G. J. Robbrecht   +14 more
wiley   +1 more source