Resumo: A imposição do déficit hídrico na cultura da mangueira, combinada com a maturação dos ramos, permite acumular reservas essenciais à floração. Entretanto,estresses abióticos simultâneos, como temperaturas elevadas e baixa umidade, prejudicam processos fisiológicos cruciais. Alternativas têm sido buscadas para mitigartais efeitos adversos em plantas expostas a condições desfavoráveis. Nesse contexto, avaliou-se odesempenho fisiológico de mangueiras ‘Kent’ no semiárido brasileiro, tratadas comtriacontanol.O experimento foi realizado em duas safras consecutivas (2018 e 2019), emdelineamento de blocos casualisados, com cinco tratamentos e quatro repetições, sendoavaliadas quatro plantas por parcela. Os tratamentos consistiram em concentrações detriacontanol: 00,00 Controle), 3,75; 7,50; 11,25 e 15,0 ppb. O produto que contém o ingredienteativo triacontanol foi o Revigor® a uma concentração de 0,05 g L-1 (50 ppm). A aplicação de triacontanol afeta os pigmentos fotossintéticos, aumenta os teores de carboidratos solúveistotais nas folhas e nos ramos, influencia positivamente o número de panículas e leva aganhos de produtividade, em mangueiras ‘Kent’ irrigadas, cultivadas nas condições do semiárido pernambucano,havendo oscilações entre os fatores e entre as safras. Houve aumento naprodutividade de 64,91% (concentração estimada - 10,51 ppb), na safra de 2019. Resumo mangueira ramos floração Entretantoestresses Entretanto estresses simultâneos umidade cruciais desfavoráveis contexto avaliouse avaliou se ‘Kent Kent brasileiro comtriacontanolO comtriacontanol 2018 (201 2019, 2019 , 2019) casualisados repetições parcela detriacontanol 0000 00 00,0 Controle, Controle Controle) 3,75 375 3 75 7,50 750 7 50 1125 11 25 11,2 150 15 0 15, ppb Revigor 005 05 0,0 L1 L 1 L- (5 ppm. ppm . ppm) fotossintéticos produtividade irrigadas pernambucanohavendo pernambucano havendo 6491 64 91 64,91 1051 10 51 10,5 ppb, ppb) 201 (20 000 00, 3,7 37 7,5 5 112 2 11, 0, ( 649 6 9 64,9 105 10, 20 (2 3, 7, 64,

Abstract: Abstract: The imposition of water deficit in mango cultivation, combined with branch maturation, favors the accumulation of essential reserves for flowering. However, simultaneous abiotic stresses such as high temperatures and low humidity, disrupt crucial physiological processes. Alternatives have been sought to mitigate these adverse effects in plants exposed to unfavorable conditions. In this scenario, this study evaluated the physiological performance of ‘Kent’ mango trees in the Brazilian semiarid region treated with triacontanol. The experiment was conducted over two consecutive crop years (2018 and 2019), using a randomized block design with five treatments and four replications, by evaluating four plants per plot. The treatments consisted of five concentrations of triacontanol: 0.00 (Control), 3.75, 7.50, 11.25, and 15.0 ppb. The product containing the active ingredient triacontanol was Revigor® at a concentration of 0.05 g L-1 (50 ppm). The application of Triacontanol affects photosynthetic pigments, increases the level of total soluble carbohydrates in leaves and branches, positively influences the number of panicles and leads to productivity increases in irrigated ‘Kent’ mango trees grown in the semiarid conditions of Pernambuco, with oscillations between factors and between harvests. There was an increase in productivity of 64.91% (estimated concentration - 10.51 ppb) in the 2019 harvest. Abstract cultivation maturation flowering However humidity processes scenario ‘Kent Kent 2018 (201 2019, , 2019) replications plot 000 0 00 0.0 Control, Control (Control) 375 3 75 3.75 750 7 50 7.50 1125 11 25 11.25 150 15 15. ppb Revigor 005 05 L1 L 1 L- (5 ppm. ppm . ppm) pigments branches Pernambuco harvests 6491 64 91 64.91 estimated 1051 10 51 10.5 201 harvest (20 0. (Control 37 3.7 5 7.5 112 2 11.2 ( 649 6 9 64.9 105 10. 20 (2 3. 7. 11. 64.

Abstract According to an extensive database, the Objective is to compare surgical versus nonsurgical treatment through Propensity Score (PS) for patients with Oropharyngeal Squamous Cell Carcinoma (OPSCC). Methods: We retrospectively evaluated epidemiological data from 8075 patients with OPSCC diagnosed between 2004 and 2014 and used PS matching to analyze possible prognostic factors for its outcomes with regression analyses. Results: Cox multiple regression analysis to study survival after PS matching shows that type of treatment was associated with death with a hazard ratio of 1.753 (p < 0.05) of non-surgical treatment. However, it was not associated with recurrence (p> 0.05). In the surgical treatment group, overall survival was 79.9% at one year, 36.4% at five years, and 20.5% at ten years. Disease-free survival was 90.1%, 64.8%, and 56.0% at 1, 5, and 10-years, respectively. In the non-surgical treatment group, overall survival was 60.6% at one year, 21.8% at five years, and 12.7% at ten years. Disease-free survival was 90.8%, 67.2%, and 57.8% at 1, 5, and 10-years, respectively. Conclusion: Patients in the surgical treatment group had better outcomes related to survival. Recurrence is associated with the survival of OPSCC cancer. Recurrence-free survival is similar to both treatments. Level of evidence: 2C. database (PS OPSCC. . (OPSCC) Methods 807 200 201 analyses Results 1753 1 753 1.75 p 0.05 005 0 05 non However p> 0.05. 799 79 9 79.9 year 364 36 4 36.4 years 205 20 5 20.5 Diseasefree Disease free 901 90 90.1% 648 64 8 64.8% 560 56 56.0 10years, 10years 10 10-years respectively 606 60 6 60.6 218 21 21.8 127 12 7 12.7 908 90.8% 672 67 2 67.2% 578 57 57.8 Conclusion cancer Recurrencefree treatments evidence 2C C (OPSCC 80 175 75 1.7 0.0 00 79. 3 36. 20. 90.1 64.8 56. 60. 21. 12. 90.8 67.2 57. 17 1. 0. 90. 64. 67.

In a complex environmental, productive and socioeconomic scenario, on November 28th, 2007, the National Act N°26.331 of “Minimum Standards for the Environmental Protection of Native Forests” (known as the “Forest Law”) was sanctioned in Argentina with the purpose of protecting native forests at the national scale. In this article, we aim to critically synthesize the available information about this law ten years after its sanction from an approach that takes into account environmental, economic and social aspects. In particular, we characterize the performance of this law in the Chaco Region in different dimensions, identify its main challenges and describe a series of proposals that from the science and technology sector can contribute to its (re)design and implementation in the context of the revisions of the Provincial Native Forest Land Use Planning Programs. In order to accomplish these objectives, we integrated information available from different sources, such as laws and regulations (national and provincial), scientific literature, reports from government agencies and NGOs and newspaper articles. The Forest Law installed in the public opinion of our country the problems related to the loss of native forests and has positioned itself as the main national instrument for forest conservation. Although deforestation rates lowered in the Chaco Region, there is no clear evidence that this reduction was due to its application. The Forest Law in the Chaco Region presents a series of challenges to improve its performance in terms of its effectiveness, equity and social legitimacy. In this paper, we present ten observations that emerge from the review carried out. On the other hand, linked to these observations, we outline a series of research and action proposals for enhancing the performance of the law.

En un complejo escenario ambiental, productivo y socioeconómico, el 28 de noviembre de 2007 fue sancionada en Argentina la Ley Nacional Nº 26.331 de “Presupuestos Mínimos de Protección Ambiental de los Bosques Nativos" (conocida como "Ley de bosques") con el propósito de proteger los bosques nativos a escala nacional. En este artículo nos proponemos realizar una síntesis crítica de la información disponible acerca de esta ley a diez años de su sanción, con una aproximación que toma en cuenta aspectos ambientales, económicos y sociales. Caracterizamos el desempeño de esta ley en la Región Chaqueña en cuanto a diferentes dimensiones, identificamos sus principales desafíos y describimos una serie de propuestas que desde el sector de Ciencia y Técnica pueden contribuir a su (re)diseño e implementación en el contexto de las actualizaciones de los Ordenamientos Territoriales de Bosques Nativos provinciales. Para ello, integramos información disponible proveniente de distintas fuentes, tales como normativas (nacionales y provinciales), literatura científica, informes de organismos estatales y de ONG y artículos periodísticos. La Ley de Bosques instaló en la opinión pública de nuestro país la problemática vinculada a la pérdida de bosques nativos y se ha posicionado como el principal instrumento de política forestal nacional para su protección. Si bien hubo una reducción en las tasas de deforestación en la región Chaqueña, no existen evidencias certeras de que esta reducción se deba a su aplicación. La Ley de Bosques en la Región Chaqueña presenta una serie de desafíos para mejorar su desempeño en cuanto a su efectividad, equidad y legitimidad social. En este trabajo se presentan diez observaciones que emergen de la revisión realizada. Por otro lado, se esbozan una serie de propuestas de investigación y acción en torno a la ley vinculadas a esas observaciones.

El artículo aborda el funcionamiento de la ciencia en relación con la política pública desde la perspectiva de los investigadores académicos vinculados a la consultoría con organismos gubernamentales. Tres preguntas guían el análisis: ¿cómo piensan y evalúan esta relación?, ¿cómo perciben su lugar en esta relación? y ¿cómo es la circulación del conocimiento entre estos campos? Se concluye que el recurso al conocimiento científico sirve más a la necesidad de legitimar una decisión política tomada, que para ampliar la gama de opciones de decisión o como elemento de sustentación de la política formulada.

This article explores the workings of science in relation with public policies, from the perspective of scholars engaged in consulting work with governmental organisms. Three questions guide this analysis: how do these scholars think and evaluate this relationship?, how do they perceive their place in this relationship? And, how does knowledge circulate between these two fields? It concludes that appealing to scientific knowledge serves the necessity to justify already taken decisions rather, than to expand the range of options or as an element to support the devised policy.

O artigo aborda o funcionamento da ciência em relação com a política pública desde a perspectiva dos investigadores acadêmicos vinculados à consultoria com organismos governamentais. Três perguntas guiam a análise: como pensam e avaliam esta relação?, como percebem seu lugar nesta relação? e como é a circulação do conhecimento entre estes campos? Conclui que o recurso ao conhecimento científico serve mais à necessidade de legitimar uma decisão política tomada, que para ampliar a gama de opções de decisão ou como elemento de sustentação da política formulada.