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| Registros recuperados: 26 | |
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| Rojas García, Adelaido Rafael. |
| El objetivo del presente estudio fue evaluar la respuesta productiva de 10 variedades de alfalfa con intervalos de corte definidos estacionalmente. El estudio se realizó de junio de 2010 a junio de 2011 en el Colegio de Postgraduados. Las variedades evaluadas fueron: Aragón, Valenciana, Chipilo, Milenia, Oaxaca, San Miguelito, Júpiter, Atlixco, Vía láctea y Cuf 101, las cuales se distribuyeron en un diseño completamente al azar con cuatro repeticiones. Las variedades Júpiter y Milenia con 20,275 y 20,644 kg MS ha-1 registraron los mayores rendimientos y el menor para las variedades Cuf 101 y Aragón con 13,350 y 14,488 kg MS ha-1, respectivamente. Las variedades con mayor tasa de crecimiento promedio anual fueron Milenia y Júpiter con 57 y 56 kg MS ha-1d-1,... |
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Palavras-chave: Medicago sativa; Rendimiento; Radiación; Indice de área foliar; Yield; Radiation; Foliar area index; Ganadería; Maestría. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/514 |
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| Rojas García, Adelaido Rafael. |
| El objetivo del presente estudio fue evaluar la respuesta productiva de 10 variedades de alfalfa con intervalos de corte definidos estacionalmente. El estudio se realizó de junio de 2010 a junio de 2011 en el Colegio de Postgraduados. Las variedades evaluadas fueron: Aragón, Valenciana, Chipilo, Milenia, Oaxaca, San Miguelito, Júpiter, Atlixco, Vía láctea y Cuf 101, las cuales se distribuyeron en un diseño completamente al azar con cuatro repeticiones. Las variedades Júpiter y Milenia con 20,275 y 20,644 kg MS ha-1 registraron los mayores rendimientos y el menor para las variedades Cuf 101 y Aragón con 13,350 y 14,488 kg MS ha-1, respectivamente. Las variedades con mayor tasa de crecimiento promedio anual fueron Milenia y Júpiter con 57 y 56 kg MS ha-1d-1,... |
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Palavras-chave: Medicago sativa; Rendimiento; Radiación; Indice de área foliar; Yield; Radiation; Foliar area index; Ganadería; Maestría. |
| Ano: 2011 |
URL: http://hdl.handle.net/10521/514 |
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| Aguilos, Maricar; Stahl, Clement; Burban, Benoit; Herault, Bruno; Courtois, Elodie; Coste, Sabrina; Wagner, Fabien; Ziegler, Camille; Takagi, Kentaro; Bonal, Damien. |
| Warmer and drier climates over Amazonia have been predicted for the next century with expected changes in regional water and carbon cycles. We examined the impact of interannual and seasonal variations in climate conditions on ecosystem-level evapotranspiration (ET) and water use efficiency (WUE) to determine key climatic drivers and anticipate the response of these ecosystems to climate change. We used daily climate and eddyflux data recorded at the Guyaflux site in French Guiana from 2004 to 2014. ET and WUE exhibited weak interannual variability. The main climatic driver of ET and WUE was global radiation (Rg), but relative extractable water (REW) and soil temperature (Ts) did also contribute. At the seasonal scale, ET and WUE showed a modal pattern... |
| Tipo: Text |
Palavras-chave: Tropical rainforest; Evapotranspiration; Water use efficiency; Drought; Radiation. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00484/59572/62542.pdf |
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| Khoshbin khoshnazar,A. R; Jahanshahi,M; Azami,N. S. |
| Radiation therapy of the brain is associated with many consequences, including cognitive disorders. Pathogenesis of radiation induced cognitive disorder is not clear, but reduction of neurogenesis in hippocampus may be an underlying reason. 24 adult male rats entered to study. Radiation absorbed dose to midbrain was 10 Gy, delivered by routine cobalt radiotherapy machine which its output was measured 115.24 cGy/min. The rats were divided in four groups of sixes, including groups of control, single fraction 10 Gy, fractionated 10 Gy and finally anaesthesia sham group. Number of pyramidal nerve cells was counted in two regions of hippocampus formation (CA1 and CA3). The radiation could reduce the number of cells in two regions of hippocampus significantly... |
| Tipo: Journal article |
Palavras-chave: Hippocampus; Neurogenesis; Radiation; Fractionation. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100026 |
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| Owoeye,O; Malomo,A. O; Elumelu,T. N; Salami,A. A; Osuagwu,F. C; Akinlolu,A. A; Adenipekun,A; Shokunbi,M. T. |
| The anti-inflammatory effect of dexamethasone on the irradiated kidneys of adult Wistar rats (Rattus norvegicus) was studied. Eighteen adult Wistar rats were, after acclimatization, randomly divided into 3 groups of 6 animals per group. The control group had normal saline, receiving neither drugs nor radiation. The second group received normal saline and radiation. The third group received pretreatment with dexamethasone at 1mg/kg body weight/day for 2 days followed by radiation. Radiation was delivered to the animals as a single fraction of 2.5 Gy of gamma rays from Cobalt-60 source, using an AECL Theatron 780-C Teletherapy machine. After exposure to the different interventions, the animals were sacrificed on the 14th post-irradiation day and the kidneys... |
| Tipo: Journal article |
Palavras-chave: Radiation; Nephrons; Glomerulus; Nephritis; Anti-inflammatory; Kidney. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000100011 |
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| VARANDA,E. A.; TAVARES,D. C.. |
| Since 1949, a great deal of research has been carried out on the radioprotective action of chemical substances. These substances have shown to reduce mortality when administered to animals prior to exposure to a lethal dose of radiation. This fact is of considerable importance since it permits reduction of radiation-induced damage and provides prophylactic treatment for the damaging effects produced by radiotherapy. The following radioprotection mechanisms were proposed: free radical scavenger, repair by hydrogen donation to target molecules, formation of mixed disulfides, delay of cellular division and induction of hypoxia in the tissues. Radioprotective agents have been divided into four major groups: the thiol compounds, other sulfur compounds,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Radiation; Protective agents; Honeybee venom. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301998000100002 |
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| Lucas de Oliveira,P. C.; Sakate,M.; Madruga,R. A.; Barbosa,N. P.U.. |
| Venoms from snakes of the Bothrops genus are proteolytic, coagulant, hemorrhagic and nephrotoxic, causing edema, necrosis, hemorrhage and intense pain at the bite site, besides systemic alterations. Many adjuvants have been added to the venom used in the sensitization of antiserum-producer animals to increase antigenic induction and reduce the envenomation pathological effects. Gamma radiation from 60Co has been used as an attenuating agent of the venoms toxic properties. The main objective was to study, comparatively, clinical and laboratory aspects of goats inoculated with bothropic (Bothrops jararaca) venom, natural and irradiated from a 60Co source. Twelve goats were divided into two groups of six animals: GINV, inoculated with 0.5mg/kg of natural... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Radiation; Bothrops jararaca; Cobalt; Goats. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992007000300003 |
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| Jung, T.; Stukely, M.J.C.; Hardy, G.E.St.J.; White, D.; Paap, T.; Dunstan, W.A.; Burgess, T.I.. |
| During surveys of dying vegetation in natural ecosystems and associated waterways in Australia many new taxa have been identified from Phytophthora ITS Clade 6. For representative isolates, the region spanning the internal transcribed spacer region of the ribosomal DNA, the nuclear gene encoding heat shock protein 90 and the mitochondrial cox1 gene were PCR amplified and sequenced. Based on phylogenetic analysis and morphological and physiological comparison, four species and one informally designated taxon have been described; Phytophthora gibbosa, P. gregata, P. litoralis, P. thermophila and P. taxon paludosa. Phytophthora gibbosa, P. gregata and P. taxon paludosa form a new cluster and share a common ancestor; they are homothallic and generally... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Aquatic habitat; Breeding systems; Evolution; Phylogeny; Radiation; Sterility; Survival. |
| Ano: 2011 |
URL: http://www.repository.naturalis.nl/record/532234 |
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| Vences, Miguel; Glaw, Frank; Andreone, Franco; Jesu, Riccardo; Schimmenti, Giovanni. |
| A revision of species included in the subgenus Laurentomantis (genus Mantidactylus) yielded new information about phylogeny, taxonomy, and biogeography of the endemic mantellid frog radiation in Madagascar. Four Laurentomantis species, distinguished by morphology and advertisement calls, are recognized: Mantidactylus (Laurentomantis) horridus (Northern and North- Western biogeographic regions), M. (L.) ventrimaculatus (South- East and East); M. (L.) malagasius (East); and the new species M. (L.) striatus (North-East). M. striatus and M. malagasius are probably sister species based on bioacoustic and morphological affinities. A tibial gland, so far unknown in anurans, is described in M. malagasius and M. horridus. A phylogenetic analysis of 54 mainly... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Amphibia; Mantellidae; Mantidactylus; Subgenus; Laurentomantis; Aglyptodactylus; Boophis; Laliostoma; Mantidactylus; Mantella; Systematics; Phylogeny; Radiation; New species; Tibial glands; Madagascar. |
| Ano: 2002 |
URL: http://www.repository.naturalis.nl/record/534312 |
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| Jung, T.; Jung, M.H.; Scanu, B.; Seress, D.; Kovács, G.M.; Maia, C.; Pérez-Sierra, A.; Chang, T.-T.; Chandelier, A.; Heungens, K.; Poucke, K. van; Abad-Campos, P.; Léon, M.; Cacciola, S.O.; Bakonyi, J.. |
| During a survey of Phytophthora diversity in natural ecosystems in Taiwan six new species were detected. Multigene phylogeny based on the nuclear ITS, ß-tubulin and HSP90 and the mitochondrial cox1 and NADH1 gene sequences demonstrated that they belong to ITS Clade 7a with P. europaea, P. uniformis, P. rubi and P. cambivora being their closest relatives. All six new species differed from each other and from related species by a unique combination of morphological characters, the breeding system, cardinal temperatures and growth rates. Four homothallic species, P. attenuata, P. flexuosa, P. formosa and P. intricata, were isolated from rhizosphere soil of healthy forests of Fagus hayatae, Quercus glandulifera, Q. tarokoensis, Castanopsis carlesii,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Biosecurity; Breeding systems; Evolution; Flow cytometry; Phylogeny; Phytophthora cambivora; Radiation. |
| Ano: 2017 |
URL: http://www.repository.naturalis.nl/record/618617 |
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| Nogueira,WCL; Velásquez,PAT; Furlan,RL; Macari,M. |
| The objective of the present study was to evaluate the effects of different dietary energy levels and stocking densities on the thermoregulating parameters, live performance, and carcass traits of broilers reared under tropical winter conditions at different times of the day. In total, 1,312 one-d-old male broilers were used. Birds were allotted to three different stocking densities (10, 14 or 18 birds/m²) and two dietary energy levels (2900 or 3200 kcal ME/kg). The following parameters were evaluated:radiant heat load (RHL), rectal temperature (RT), feed intake (FI), weight gain (WG), feed conversion ratio (FCR), livability (L), production of live weight per area (WA), and carcass yield. Stocking density did not affect sensible heat loss (SRL) or rectal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Housing environment; Production capacity; Sensible heat; Broiler; Radiation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000100009 |
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| Portes, Tomás Aquino; Melo, Hyrandir Cabral de. |
| Mathematical models were tested to correlate the leaf area index (LAI) of maize to the percentage of light intercepted by the canopy (% LIC) and this with the total dry matter of aerial parts (TDM), as well with the grain yield (GY). The experiment was conducted in a randomized block design, with four replications. The treatments consisted of hybrid maize at five plant densities: 4.0, 2.66, 2.0, 1.6, and 1.3 plants per m2 (pl m-2). At densities of 4.0 and 2.66 pl m-2, the average LAI and TDM did not differ among themselves but were significantly higher than those presented at the densities of 2.0, 1.66 and 1.3 pl m-2, which also did not differ among themselves. The number of corncobs per plant (cob pl-1) and GY behaved similarly. The LAI grew exponentially... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências Agrárias Fisiologia de Plantas Cultivadas age; Corn; Radiation; Yield Fisiologia de Plantas Cultivadas. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17892 |
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| Kazama, Ricardo; UEM; Roma, Cláudio Fabrício da Cruz; UEM; Barbosa, Orlando Rus; UEM; Zeoula, Lucia Maria; UEM; Ducatti, Taciana; UEM; Tesolin, Lílian Christiane; UEM. |
| Avaliou-se o efeito do sombreamento sobre a temperatura da superfície do pelame (TSP) de bovinos de cinco grupos genéticos, 4 ½ Limousin + ½ Nelore (L), 8 ½ Limousin + ¼ Nelore + ¼ RedAngus (LR), 4 ½ Limousin + ¼ Nelore + ¼ Simental (LS), 2 ¼ Marchigiana + ¼ Nelore + ¼ Simental (MS) e 4 ¾ RedAngus + ¼ Nelore + ¼ Guzerá (RG), com 20 meses de idade e peso médio de 300 kg, alojados em baias individuais de 10 m2 , sendo metade coberta com telhas de zinco. A dieta era isoproteica e isoenergética com relação volumoso:concentrado 67:33. A TSP do Lado 1 (L1) do confinamento, durante o dia, não diferenciou (p > 0,05) entre os grupos genéticos, enquanto... |
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Palavras-chave: 5.04.05.00-4 Produção Animal grupo genético; Orientação da instalação; Radiação; Sombra. genetic group; Building orientation; Radiation; Shading. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4702 |
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| ARVIND SINGH TOMAR; GBPUAT, PANTNAGAR. |
| In this study, two site-specific solar radiation (Rs) and net radiation (Rn) based equations for estimating reference evapotranspiration (ET0) were developed and their performance were statistically analysed in comparison to widely accepted FAO Penman-Monteith method (PMF-56) and four other standard radiation methods for sub-humid Hazaribagh region of Jharkhand. These two equations were developed with daily values of Rs and Rn in conjunction with maximum and minimum air temperature by taking daily PMF-56 ET0 values as index with weather dataset of 15 years (1990-2004). The performance of these equations validated with carefully screened daily weather dataset of eight years (2005-2012) with other considered standard methods revealed that they estimated ET0... |
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Palavras-chave: Site-specific; Radiation; Statistical performance; India.. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3121 |
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| TOMAR, ARVIND SINGH. |
| In this study, two site-specific solar radiation (Rs) and net radiation (Rn) based equations for estimating reference evapotranspiration (ET0) were developed and their performance were statistically analysed in comparison to widely accepted FAO Penman-Monteith method (PMF-56) and four other standard radiation methods for sub-humid Hazaribagh region of Jharkhand. These two equations were developed with daily values of Rs and Rn in conjunction with maximum and minimum air temperature by taking daily PMF-56 ET0 values as index with weather dataset of 15 years (1990-2004). The performance of these equations validated with carefully screened daily weather dataset of eight years (2005-2012) with other considered standard methods revealed that they estimated ET0... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Site-specific; Radiation; Statistical performance; India.. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3121 |
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| Ashry,Omaima Mohamed; Hasan,Hesham Farouk. |
| ABSTRACT The aim of the present study is to evaluate the possible curative effect of erythropoietin (EPO) on radiation-induced damage to the lung and its renin angiotensin system. EPO (200 U/100g) was i.p. injected to male rats one hour post 6 Gy whole body gamma irradiation. The animals were sacrificed after 14 days post irradiation. Irradiation induced significant drop of haematological values, bone marrow (BM) count, lung oxidative stress markers, glutathione (GSH) and superoxide dismutase(SOD) associated with significant elevation of malondialdehyde (MDA), advanced oxidation protein product (AOPP) and nitric oxide (NO) besides serum inflammatory markers, tumor necrosis factor alpha (TNF-α) and lactate dehydrogenase (LDH). Also serum and lung renin... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Erythropoietin; Radiation; Inflammation; Oxidative stress. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100312 |
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| Registros recuperados: 26 | |
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