|
|
|
| Registros recuperados: 208 | |
|
| |
|
|
| Ling, K. Charles. |
| The rationale for compensating dairy cooperatives for the costs incurred in balancing milk supply for the fluid market is examined. A reserve-balancing pool is proposed to facilitate deducting supply-balancing service credit from a marketwide producer pool and making payment to cooperatives for providing the services. The volume of necessary reserves maintained for the fluid market determines the size of the reserve-balancing pool. A dairy cooperative qualifies for pool payment based on the volume of milk delivered for fluid uses and on the volume of necessary reserves actually balanced. An alternative qualification is to allocate the volume of necessary reserves each cooperative has to balance according to a cooperative's market share of milk for fluid... |
| Tipo: Report |
Palavras-chave: Cooperative; Milk; Reserve-balancing pool; Seasonality; Manufacturing costs; Marketwide services; Agribusiness. |
| Ano: 1985 |
URL: http://purl.umn.edu/50731 |
| |
|
|
| Vitorino Júnior, Oscar Barroso; Lopes, Kelven Stella; Pelicice, Fernando Mayer. |
| Brycon nattereri is a threatened fish species restricted to small headwater rivers of the Paraná, São Francisco and Tocantins rivers. This species has been extirpated from many sites, and little is known about its ecology. In this sense, the present study investigated temporal variations in the occurrence, abundance and length structure of B. nattereri in the Dois Irmãos river, a small headwater river from the Tocantins river basin. Samples were taken monthly between January and November of 2009 and 2010. The studied site comprised a 4.5 km river stretch, sampled with an active fishing method (fly fishing). Individuals caught were counted, measured and returned immediately to the river. We caught 302 individuals along two years. Brycon nattereri was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.05.03.00-8 Ecologia Aplicada fish population; Seasonality; Conservation; Headwater; Tocantins river Ecologia. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/23857 |
| |
|
|
| Marinoni,Luciane; Almeida,Gisele Luziane de. |
| During one year of the project called "Survey of the Entomological Fauna in Paraná State" (henceforth PROFAUPAR), 126,340 adult specimens of Trichoptera were collected with light trap. The individuais of the family Hydropsychidae were identified and a list of species is presented. Eighteen species in four genera were identified. From this, S. (R.) discalis Flint, 1972,5. (R.) paramnsis Flint, 1983;S (R.) spinulosa Flint, 1972 are for the first time registered for Brazil and Leptonema sparsum (Ulmer, 1905), Macrostemum hyalinum (Pictet, 1836), S. (Smicridea) albosignata Ulmer, 1907; S. (Rhyacophylax) dentifera Flint, 1983; S. (R.) iguazu Flint, 1983; S. (R.) piraya Flint, 1983; S. (R.) unguiculaia Flint, 1983; S. (R.) vermiculata Flint, 1978 and S. (R.)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trichoptera; Hydropsychidae; Abundance; Seasonality; Species rich-ness; Light trap; Paraná; Brazil. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000100025 |
| |
|
|
| Almeida,Gisele Luziane de; Marinoni,Luciane. |
| From 126,340 adult specimens of Trichoptera captured with light trap during one year of the project called "Survey of the Entomological Fauna in Paraná State" (Paraná, Brazil), 6,375 belong to the family Leptoceridae. The individuals of the family were identified and a list of species is presented. The following species are recorded for the first time to Paraná State: Achoropsyche duodecimpunctata (Navas. 1916); Nectopsyche aureovittala Flint, 1983; Nectopsyche fuscomaculata Flint, 1983; Nectopsyche muhni (Navas, 1916); Nectopsyche separata (Banks, 1920); Nectopsyche ortizi Holzenthal, 1995; Nectopsyche splendida (Navas, 1917) and Tripleclides gracilis (Burmeister, 1839). Discussion on individual abundance and species seasonality are also presented. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trichoptera; Leptoceridae; Abundance; Seasonality; Species richness; Light trap; Paraná; Brazil. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000200005 |
| |
|
|
| Parcell, Joseph L.. |
| A set of inverse wholesale pork primal demand models were estimated to estimate wholesale pork primal own-quantity flexibility's, to determine seasonal price fluctuations, and to examine whether the flexibility's have changed in absolute magnitude over time. Results of this analysis indicate that there is the own-quantity flexibility for some primals differences by season with in the year. Additionally, it was determined that the own-quantity flexibility increased in magnitude (absolute value) over time for some of the primal cuts evaluated here. However, for Hams and Boston Butt the own-flexibility was either unchanged or increased over the period analyzed. Increased cold storage stocks for these primals may have been used to offset the price decline of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Wholesale Pork Primals; Structural Change; Seasonality; Demand and Price Analysis; Livestock Production/Industries. |
| Ano: 2000 |
URL: http://purl.umn.edu/36343 |
| |
|
|
| Parcell, Joseph L.. |
| This study focuses on estimating wholesale pork primal demand relationships in order to determine their own-quantity flexibilities, whether these flexibilities have changed over time, and seasonal price fluctuations. A set of equations for pork loin, rib, butt, ham, pork belly, and picnic primals was estimated. Monthly data over an 11-year period were used to determine that own-quantity flexibilities varied across months, that they increased in absolute value over time for some primal cuts, and cold-storage stocks were used as an inventory control measure to reduce price variation for some primal cuts. |
| Tipo: Journal Article |
Palavras-chave: Seasonality; Structural change; Wholesale pork primals; Demand and Price Analysis. |
| Ano: 2003 |
URL: http://purl.umn.edu/31102 |
| |
|
| |
|
|
| Silva, Gerson Henrique Da; Esperancini, Maura Seiko Tsutsui; Melo, Carmen Ozana De; Bueno, Osmar De Carvalho. |
| Com o aumento de preços e consumo do petróleo, tem-se procurado na biomassa alternativa energética renovável para sua substituição. Dentre as culturas capazes de atender à produção de insumo destinado à obtenção de energia renovável encontra-se a mamona. Objetivou-se, neste trabalho, conhecer o índice de variação estacional do preço da mamona, pois é essencial para a previsão de seu preço em determinada época do ano. Utilizou-se o preço da mamona recebido pelos produtores paranaenses e adotou-se a metodologia da média geométrica móvel centralizada de 12 meses, obtendo-se um padrão comportamental (sazonal). A análise mostrou que os preços tendem a ser maiores nos meses de janeiro a maio e, no período seguinte, a tendência é de queda de preços, coincidindo... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Mamona; Produtores; Preço; Sazonalidade; Biodiesel; Castor bean; Producers; Price; Seasonality; Biodiesel; Resource /Energy Economics and Policy. |
| Ano: 2008 |
URL: http://purl.umn.edu/109119 |
| |
|
| |
|
| |
|
|
| Matsumoto, Haru; Bohnenstiehl, Delwayne R.; Tournadre, Jean; Dziak, Robert P.; Haxel, Joseph H.; Lau, T. -k. A.; Fowler, Matt; Salo, Sigrid A.. |
| In late 2007, two massive icebergs, C19a and B15a, drifted into open water and slowly disintegrated in the southernmost Pacific Ocean. Archived acoustic records show that the high-intensity underwater sounds accompanying this breakup increased ocean noise levels at mid-to-equatorial latitudes over a period of ∼1.5 years. More typically, seasonal variations in ocean noise, which are characterized by austral summer-highs and winter-lows, appear to be modulated by the annual cycle of Antarctic iceberg drift and subsequent disintegration. This seasonal pattern is observed in all three Oceans of the Southern Hemisphere. The life cycle of Antarctic icebergs affects not only marine ecosystem but also the sound environment in far-reaching areas and must be... |
| Tipo: Text |
Palavras-chave: Antarctica; Iceberg; Ocean noise; Seasonality; Trend. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00205/31613/30035.pdf |
| |
|
|
| Turchetto, Felipe; Fortes, Fabiano de Oliveira. |
| O presente estudo teve por objetivo analisar e descrever a dinâmica sazonal da deposição e decomposição de serapilheira na Floresta Estacional Decidual da região do Médio Alto Uruguai, RS. Para a determinação da deposição de serapilheira foram instalados 20 coletores de 1 m2 em uma área de um hectare, sendo realizadas avaliações mensais. Para a amostra da serapilheira acumulada nas estações sazonais, foram coletadas 20 amostras aleatórias em molduras de 25 cm x 25 cm. O material coletado foi identificado e separado nas frações: folhas, galhos e miscelânea. Após a estratificação, as amostras foram secas em estufa a 70 oC e pesadas. A deposição anual de serapilheira foi estimada em 7,14 t.ha-1, sendo composta por 58,54% de folhas, 28,69% de galhos e 12,77%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Recursos Florestais; Engenharia Florestal; Ecologia Mineralização; Sazonalidade; Decomposição Mineralization; Seasonality; Decomposition. |
| Ano: 2014 |
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/735 |
| |
|
|
| Friesner, Daniel L.; McPherson, Matthew Q.; Rosenman, Robert. |
| Efficiency measurement has been one of the most extensively explored areas of health services research over the past two decades. Despite this attention, few studies have examined whether a providers efficiency varies on a monthly, quarterly or other, sub-annual basis. This paper presents an empirical study that looks for evidence of seasonal inefficiency. Using a quarterly panel of general, acute-care hospitals from Washington State, we find that hospital efficiency does vary over time; however, the nature of this dynamic inefficiency depends on the type of efficiency being measured. Our results suggest that technical and cost efficiency vary by quarter. Allocative and scale efficiency also vary on a quarterly basis, but only if the data are jointly... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Seasonality; Efficiency; Hospitals; Data envelopment analysis; Health Economics and Policy. |
| Ano: 2006 |
URL: http://purl.umn.edu/12957 |
| |
|
|
| Ding-ping,Bai; Cheng-jiang,Yu; Yu-lin,Chen. |
| Arylalkylamine N-acetyltransferase (AA-NAT) is critical enzyme in Melatonin (MLT) biosynthesis for MLT regulating the animal seasonal breeding. In this study, DNA sequencing methods were applied to detect the polymorphisms of the AA-NAT gene in 179 Chinese sheep belonging to two non-seasonal reproduction breeds and two seasonal reproduction breeds. One mutation at exon 3 (NM_001009461:c.486A > G) was firstly described at the sheep AA-NAT locus. Hence, we described the SmaI PCR-RFLP method for detecting EX3 486A > G mutation, frequencies of the AA-NAT-G allele varied from 0.871 to 0.908 in two non-seasonal reproduction breeds and 0.517 to 0.578 in two seasonal reproduction breeds. The associations of SmaI polymorphism with estrus... |
| Tipo: Journal article |
Palavras-chave: AA-NAT gene; Polymorphism; Reproduction; Seasonality; Sheep. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582012000200007 |
| |
|
| |
|
|
| Zielhofer, Christoph; Fletcher, William J.; Mischke, Steffen; De Batist, Marc; Campbell, Jennifer F. E.; Joannin, Sebastien; Tjallingii, Rik; El Hamouti, Najib; Junginger, Annett; Stele, Andreas; Bussmann, Jens; Schneider, Birgit; Lauer, Tobias; Spitzer, Katrin; Strupler, Michael; Brachert, Thomas; Mikdad, Abdeslam. |
| The limited availability of high-resolution continuous archives, insufficient chronological control, and complex hydro-climatic forcing mechanisms lead to many uncertainties in palaeo-hydrological reconstructions for the Western Mediterranean. In this study we present a newly recovered 19.63 m long core from Lake Sidi Ali in the North African Middle Atlas, a transition zone of Atlantic, Western Mediterranean and Saharan air mass trajectories. With a multi-proxy approach based on magnetic susceptibility, carbonate and total organic C content: core-scanning and quantitative XRF, stable isotopes of ostracod shells, charcoal counts, Cedrus pollen abundance, and a first set of diatom data, we reconstruct Western Mediterranean hydro-climatic variability,... |
| Tipo: Text |
Palavras-chave: Holocene; Younger Dryas; Winter rain minima; Atlantic forcing; Western Mediterranean; North Atlantic Oscillation (NAO); Seasonality; Solar forcing; Lake sediments; Middle Atlas; Morocco. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00420/53188/55016.pdf |
| |
|
|
| Filgueiras,Bruno K. C.; Liberal,Carolina N.; Aguiar,Cristina D. M.; Hernández,Malva I. Medina; Iannuzzi,Luciana. |
| In this study, performed in a remnant of Brazilian Atlantic Forest, three types of dung from animals with distinct alimentary habits were utilized, in order to verify possible differences of attractivity of these dungs to the Scarabaeinae and the influence of seasonality in the attractivity. Three habitats were sampled: edge, clearing and forest core, each with 40 pitfall traps. A total of 2,137 beetles were collected from August 2005 to July 2006. Canthidium sp. 1 (43%) and Dichotomius sericeus (41%) were the most abundant species. From the total number of beetles collected, 80.5% were attracted to human dung, 11% to jaguar dung, 7.8% to waterbuck dung and 0.7% to the control. The species Canthidium sp.1, Canthidium sp. 2, Ateuchus sp., Canthon... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic forest; Bait; Dung beetles; Seasonality. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000300017 |
| |
|
|
| Barragán-G., R.G.; Canosa, A.; Niño, J.P.. |
| Se estimaron abundancia, biomasa, biovolumen y forma del bacterioplancton en tres estaciones de la bahía de Gaira (costa Caribe colombiana) en los períodos definidos para este estudio como: "lluvioso" (julio, agosto; 2003), "transición" (abril, octubre; 2004) y "seco" (febrero, marzo; 2004). Las meustras del bacterioplancton fueron tomadas a 0.5 y 42 m de profundidad, filtradas sobre filtros de policarbonato de 0.22 μm y cuantificadas utilizando microscopía de epifluorescencia con naranja de acridina y análisis de imagen. La abundancia bacteriana varió entre 1.3 x 105-2.9 x 106 células mL-1 en el período lluvioso, 8.8 x 104-2.2 x 106 células mL-1 en el período de transición y 6.7 x 104-3.9 x 105 células mL-1 en el período seco, la abundancia promedio fue... |
| Tipo: Journal Contribution |
Palavras-chave: Biomass; Seasonality; Biomass; Seasonality; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_34117. |
| Ano: 2009 |
URL: http://hdl.handle.net/1834/3594 |
| |
|
|
| Amorim,P.L.; Fonseca,D.M.; Santos,M.E.R.; Pimentel,R.M.; Rodrigues,J.P.P.; Chizzotti,F.H.M.; Vitor,C.G.. |
| ABSTRACT The effect of four nitrogen levels (0, 40, 80 and 120kg N ha-1), applied before deferment on the beef cattle production and structural variables on Urochloa decumbens (signal grass) were assessed from January to October 2012 and from January to September 2013. A randomized block design with three replicates was adopted, in an arrangement of repeated measures in time (grazing period). An interaction effect between nitrogen level and grazing period was observed on extended-plant height and herbage mass. As the nitrogen levels were increased, extended-plant height, herbage mass, total herbage allowance, and efficiency of conversion of fertilizer into herbage were increased. Throughout the grazing period, pasture height, extended-plant height,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily gain; Deferrment; Seasonality; Tropical pasture; Urochloa decumbens. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000401395 |
| |
| Registros recuperados: 208 | |
|
|
|
