Substituting oat hay or maize silage for portion of alfalfa hay affects growth performance, ruminal fermentation, and nutrient digestibility of weaned calves

Science.gov (United States)

Zou, Yang; Zou, XinPing; Li, XiZhi; Guo, Gang; Ji, Peng; Wang, Yan; Li, ShengLi; Wang, YaJing; Cao, ZhiJun

2018-01-01

Objective The impact of forage feeding strategy on growth performance, ruminal fermentation and nutrient digestibility in post-weaning calves was investigated. Methods Forty-five female Holstein calves (body weight [BW] = 79.79±0.38 kg) were enrolled in the 35-d study at one week after weaning and randomly assigned to one of three dietary treatments. All diets were fed as total mixed ration containing 60% (dry matter [DM] basis) of basal starter feed and 40% (DM basis) of forage, but varied in composition of forage source including i) alfalfa (40% DM, AH); ii) alfalfa hay (26.7% DM)+oat hay (13.3% DM; OH); iii) alfalfa hay (26.7% DM)+corn silage (13.3% DM; WS). Results Dry matter intake was not different among treatment groups (p>0.05). However, BW (pcalves fed AH and OH were greater than WS-fed calves, whereas heart girth was greater in OH-fed calves than those fed AH and WS (pfeeding oat hay to postweaning calves increased crude protein digestibility (pcalves. PMID:28728373

Influence of feeding hay on the alopecia of breeding guinea pigs.

Science.gov (United States)

Gerold, S; Huisinga, E; Iglauer, F; Kurzawa, A; Morankic, A; Reimers, S

1997-08-01

Animals with partial alopecia were seen frequently in a breeding colony of guinea pigs. No pathologic aetiology could be determined. An influence of nutrition on the density of the hair coat was considered. Breeding groups were fed one of the commercial guinea pig diets of differing composition, with or without the addition of hay. Observation occurred over a period of months and the quality of the hair coat was evaluated periodically using a semi-quantitative scoring system. More extensive and more frequent fur defects were found is guinea pigs receiving a breeding diet with a high content of crude protein (23%) and a low level of crude fibre (12%), offered hay only restrictively compared with animals receiving a diet with a lower content of crude protein (15.5%) and a higher level of crude fibre (19.5%), offered the same amount of hay. The amount of hay offered is of paramount importance. Animals fed only the diet with the higher level of crude fibre (19.5%), according to the manufacturer's instructions as a complete food, without the addition of hay, showed a less dense hair coat within 4 weeks. In our colony a group of five breeding animals and their young required 200 g of hay daily in order to improve their hair coat quality to normal. Conversely, animals receiving less hay had progressively deteriorating hair coat density. Not only the amount of hay offered, but also the accessibility for all animals plays a role in preventing alopecia in guinea pigs. In larger cages (twice the usual ground surface area) fur defects were seen when the same amount of hay (200 g) was offered in only one central area, rather than spread out evenly throughout the cage. Hair loss was observed to be the result of trichophagia between adult animals kept in the same cage. The need for crude fibre of breeding animals does not appear to be completely met by pellets rich in fibre segments.

Sheep fed with banana leaf hay reduce ruminal protozoa population.

Science.gov (United States)

Freitas, Cláudio Eduardo Silva; Duarte, Eduardo Robson; Alves, Dorismar David; Martinele, Isabel; D'Agosto, Marta; Cedrola, Franciane; de Moura Freitas, Angélica Alves; Dos Santos Soares, Franklin Delano; Beltran, Makenzi

2017-04-01

A ciliate protozoa suppression can reduce methane production increasing the energy efficiency utilization by ruminants. The physicochemical characteristics of rumen fluid and the profile of the rumen protozoa populations were evaluated for sheep fed banana leaf hay in replacement of the Cynodon dactylon cv. vaqueiro hay. A total of 30 male sheep were raised in intensive system during 15 days of adaptation and 63 days of experimental period. The animals were distributed in a completely randomized design that included six replicates of five treatments with replacement levels (0, 25, 50, 75, and 100%) of the grass vaquero for the banana leaf hay. Samples of fluid were collected directly from the rumen with sterile catheters. Color, odor, viscosity, and the methylene blue reduction potential (MBRP) were evaluated and pH estimated using a digital potentiometer. After decimal dilutions, counts of genus protozoa were performed in Sedgewick Rafter chambers. The averages of pH, MBRP, color, odor, and viscosity were not influenced by the inclusion of the banana leaf hay. However, the total number of protozoa and Entodinium spp. population significantly decreased at 75 and 100% inclusions of banana leaf hay as roughage.

Residue studies of Methabenzthiazuron in Soil, Lentils and Hay

International Nuclear Information System (INIS)

Al-Maghrabi, K.I.

2002-01-01

Over two years, replicate plots of lentils (Lens culinaris L.) were treated before seeding with methabenzthiazuron at a rate of 0.5 kg a.i. ha-1. In each year representative soil, lentil and hay samples were randomly collected from plots of each treatment. Soil samples were tested for residues 24 hours after treatment and harvest. Lentil and hay samples were tested at harvest. A cleanup step was conducted after extraction. Gas chromatograph equipped with a nitrogen/phosphorus detector was used to detect methabenzthiazuron. Overall average of residue levels in soil decreased significantly from 1.16+-0.15 mg kg, 24 hours after treatment, 0.12 +-0.01 mg kg at harvest. No significant difference in the maximum average residue was found in lentil and hay samples collected from various plots and tested at harvest (0.10+-0.01 and 0.19 +-0.02 mg kg in lentils and hay, respectively). Recovery tests were conducted with each group of samples tested in order to determine the efficiency of analytical procedure. (author)

The HayWired earthquake scenario—We can outsmart disaster

Science.gov (United States)

Hudnut, Kenneth W.; Wein, Anne M.; Cox, Dale A.; Porter, Keith A.; Johnson, Laurie A.; Perry, Suzanne C.; Bruce, Jennifer L.; LaPointe, Drew

2018-04-18

The HayWired earthquake scenario, led by the U.S. Geological Survey (USGS), anticipates the impacts of a hypothetical magnitude-7.0 earthquake on the Hayward Fault. The fault is along the east side of California’s San Francisco Bay and is among the most active and dangerous in the United States, because it runs through a densely urbanized and interconnected region. One way to learn about a large earthquake without experiencing it is to conduct a scientifically realistic scenario. The USGS and its partners in the HayWired Coalition and the HayWired Campaign are working to energize residents and businesses to engage in ongoing and new efforts to prepare the region for such a future earthquake.

INTAKE AND APPARENT DIGESTIBILITY OF Andropogon gayanus HAY AT THREE DIFFERENT AGES

Directory of Open Access Journals (Sweden)

André Cayô Cavalcanti

2016-10-01

Full Text Available The aim of this study was to evaluate the voluntary intake and apparent digestibility of dry matter, crude protein, fiber fractions, energy, and the nitrogen balance of Andropogon gayanus hay at three different stages (56, 84 and 112 days. The statistical design was completely randomized, with three treatments and six replicates. Dry matter, fiber fractions, and energy apparent digestibility were higher (P<0.05 for hay harvested at 56 and 84 days. Crude protein intake and apparent digestibility of A. gayanus hay harvested at 56 days of growth were greater (P<0.05 than the hay harvested at 84 and 112 days. The A. gayanus hay showed the best voluntary intake and digestibility at 56 and 84 days of age. Keywords: forage; nutritive value; sheep.

Effect of mid-summer haying on growth and reproduction in prairie forbs

Science.gov (United States)

Becky Begay; Helen M. Alexander; Erin Questad

2011-01-01

Mid-summer haying is a common management practice for prairies; plant species could differ in the effect of haying on subsequent growth and reproduction. We examined the effect of haying on prairie species by performing a clipping experiment. For each of seven species, sixteen plants were chosen and half were randomly assigned to a clipping treatment and half to a...

A different voice: Mary Hays's the Memoirs of Emma Courtney.

Science.gov (United States)

Sharma, A

2001-01-01

Mary Hays wrote in the decade of the 1790s, a period of intense creative flowering in England. Writing in a period enshrined to the works of the canonical Wordsworth and Coleridge, Hays explored through her Jacobinical novel, The Memoirs of Emma Courtney, the contentious relationship between self and society. Like other Jacobin women writers - Elizabeth Inchbald, Charlotte Smith and Mary Wollstonecraft - Mary Hays too used her novel to explode the insidious connection between education and gender construction. Emma Courtney is a landmark novel that wrestles with the paradigm of decorum and propriety which disallows women from voicing their aspirations. In the process, Hays merges the plots of the domestic novel of courtship and love with the novel of ideas to create a searing portrait of women's intellectual confinement and psychic dissonance in a society that only projects them in terms of their gender construction. Memoirs of Emma Courtney is a remarkable novel in its depiction of the emotional imbalance created by thwarted desire: intellectual and sexual.

Environmental impact assessment of alfalfa (Medicago sativa L.) hay production.

Science.gov (United States)

Bacenetti, Jacopo; Lovarelli, Daniela; Tedesco, Doriana; Pretolani, Roberto; Ferrante, Valentina

2018-09-01

On-farm production of hay and high-protein-content feed has several advantages such as diversification of on-farm cultivated crops, reduction of off-farm feed concentrates transported over long distances and a reduction in runoff during the winter season if grown crops are perennial. Among those crops cultivated for high-protein-content feed, alfalfa (Medicago sativa L.) is one of the most important in the Italian context. Nevertheless, up to now, only a few studies have assessed the environmental performance of alfalfa hay production. In this study, using the Life Cycle Assessment approach, the environmental impact of alfalfa hay production in Northern Italy was analyzed. More in detail, two production practices (without and with irrigation) were compared. The results show that alfalfa hay production in irrigated fields has a better environmental performance compared to non-irrigated production, mainly because of the yield increase achieved with irrigation. In particular, for the Climate Change impact category, the impact is equal to 84.54 and 80.21kgCO 2 /t of hay for the scenario without and with irrigation, respectively. However, for two impact categories (Ozone Depletion and Human Toxicity-No Cancer Effect), the impact of irrigation completely offsets the yield increase, and the cultivation practice without irrigation shows the best environmental performance. For both scenarios, the mechanization of harvest is the main environmental hotspot, mostly due to fuel consumption and related combustion emissions. Wide differences were highlighted by comparing the two scenarios with the Ecoinvent process of alfalfa hay production; these differences are mostly due to the cultivation practice and, in particular, to the more intensive fertilization in Swiss production. Copyright © 2018 Elsevier B.V. All rights reserved.

Toxicosis in dairy cattle exposed to poison hemlock (Conium maculatum) in hay: isolation of Conium alkaloids in plants, hay, and urine.

Science.gov (United States)

Galey, F D; Holstege, D M; Fisher, E G

1992-01-01

Cattle in two herds developed signs of bloating, increased salivation and lacrimation, depression, respiratory distress, ataxia, and death after ingestion of hay that contained large amounts of poison hemlock (Conium maculatum). Twenty of 30 Angus cows and calves were affected in the first herd (2 died). In the second herd, 5 of 30 Holstein heifers were affected (1 died). The Conium alkaloids, coniine and gamma-coniceine, were quantified in the hay, the plants from the responsible hayfield, and the urine of affected animals.

Hay fever & homeopathy: a case series evaluation.

Science.gov (United States)

Pandey, Vinita

2016-05-01

Seasonal allergic rhinitis (hay fever) is common and can considerably reduce the quality of life of sufferers. Despite the wide everyday application and promising results with homeopathy, scientific evidence of its effectiveness for most ailments is scarce. The assessment of the clinical effectiveness of homeopathic remedies in the alleviation of hay fever symptoms in a typical clinical setting. We performed a clinical observational study of eight patients in the treatment of hay fever symptoms over a two-year period (2012 and 2013) using Measure Yourself Medical Outcome Profile (MYMOP) self-evaluation questionnaires at baseline and again after two weeks and four weeks of homeopathic treatment. The individualized prescription - either a single remedy or multiple remedies - was based on the totality of each patient's symptoms. The average MYMOP scores for the eyes, nose, activity and wellbeing had improved significantly after two and four weeks of homeopathic treatment. The overall average MYMOP profile score at baseline was 3.83 (standard deviation, SD, 0.78). After 14 and 28 days of treatment the average score had fallen to 1.14 (SD, 0.36; PHomeopathy. Published by Elsevier Ltd. All rights reserved.

Bitumen on Water: Charred Hay as a PFD (Petroleum Flotation Device

Directory of Open Access Journals (Sweden)

Nusrat Jahan

2015-10-01

Full Text Available Global demand for petroleum keeps increasing while traditional supplies decline. One alternative to the use of conventional crude oils is the utilization of Canadian bitumen. Raw bitumen is a dense, viscous, semi-liquid that is diluted with lighter crude oil to permit its transport through pipelines to terminals where it can then be shipped to global markets. When spilled, it naturally weathers to its original form and becomes dense enough to sink in aquatic systems. This severely limits oil spill recovery and remediation options. Here we report on the application of charred hay as a method for modifying the surface behavior of bitumen in aquatic environments. Waste or surplus hay is abundant in North America. Its surface can easily be modified through charring and/or chemical treatment. We have characterized the modified and charred hay using solid-state NMR, contact angle measurements and infrared spectroscopy. Tests of these materials to treat spilled bitumen in model aquatic systems have been undertaken. Our results indicate that bitumen spills on water will retain their buoyancy for longer periods after treatment with charred hay, or charred hay coated with calcium oxide, improving recovery options.

The effect of lucerne ( Medicago sativa ) hay quality on milk ...

African Journals Online (AJOL)

The influence of lucerne hay quality on the milk production potential and milk composition of Jersey cows was investigated. Three different grades of lucerne hay (Prime, Grade 1, Grade 2; selected according to the New Lucerne Quality Index) were included in a total mixed ration (TMR) and fed to lactating cows. The three ...

Laboratory Exercise to Evaluate Hay Preservatives.

Science.gov (United States)

McGraw, R. L.; And Others

1990-01-01

Presented is a laboratory exercise designed to demonstrate the effects of moisture on hay preservation products in a manner that does not require large amounts of equipment or instructor time. Materials, procedures, and probable results are discussed. (CW)

Steam explosion pretreatment for enhancing biogas production of late harvested hay.

Science.gov (United States)

Bauer, Alexander; Lizasoain, Javier; Theuretzbacher, Franz; Agger, Jane W; Rincón, María; Menardo, Simona; Saylor, Molly K; Enguídanos, Ramón; Nielsen, Paal J; Potthast, Antje; Zweckmair, Thomas; Gronauer, Andreas; Horn, Svein J

2014-08-01

Grasslands are often abandoned due to lack of profitability. Extensively cultivating grassland for utilization in a biogas-based biorefinery concept could mend this problem. Efficient bioconversion of this lignocellulosic biomass requires a pretreatment step. In this study the effect of different steam explosion conditions on hay digestibility have been investigated. Increasing severity in the pretreatment induced degradation of the hemicellulose, which at the same time led to the production of inhibitors and formation of pseudo-lignin. Enzymatic hydrolysis showed that the maximum glucose yields were obtained under pretreatment at 220 °C for 15 min, while higher xylose yields were obtained at 175 °C for 10 min. Pretreatment of hay by steam explosion enhanced 15.9% the methane yield in comparison to the untreated hay. Results indicate that hay can be effectively converted to methane after steam explosion pretreatment. Copyright © 2014 Elsevier Ltd. All rights reserved.

Distribution and dynamics of the invasive native hay-scented fern

Science.gov (United States)

Songlin Fei; Peter Gould; Melanie Kaeser; Kim. Steiner

2010-01-01

The spread and dominance of the invasive native hay-scented fern in the understory is one of the most significant changes to affect the forest ecosystems in the northeastern United States in the last century. We studied changes in the distribution and dynamics of hay-scented fern at a large scale over a 10-yr period in Pennsylvania. The study included 56 stands...

Motivation for hay: effects of a pelleted diet on behavior and physiology of horses.

Science.gov (United States)

Elia, Jamie B; Erb, Hollis N; Houpt, Katherine Albro

2010-12-02

The natural diet of free-ranging horses is grass, which is typically high in fiber and calorically dilute, however diets for high performance domestic horses are often low in fiber and calorically dense. The aim of the study was to determine the motivation of horses for hay when fed a low roughage diet. Their motivation could be used to determine if low roughage diets compromise the welfare of horses. Eight mares were fed two different diets in counterbalanced order: ad libitum orchard grass hay; a complete pelleted feed (pellets). Each trial lasted three weeks, with a one-week transition period between diets. To determine the motivation of horses for fiber they were taught to press a panel to obtain a food reward. The fixed ratio (FR) was increased using a progressive ratio ((1,2,4,7,11…) technique. When fed pellets, the horses worked for a median FR of 1 (Range=1-497) to attain pellets, and when fed hay, they worked for a median FR of 25.5 (4-497) to attain pellets. When fed hay, the horses worked for a median FR of 0 (0-0) to attain hay, and when fed pellets, they worked for a FR of 13 (2-79) to attain hay. These results indicate a greater motivation for hay, a high fiber diet, when fed a low fiber diet. The horses spent 10 (5-19.4)% of their time during a 24-hour period eating pellets compared to 61.5 (29-76) % of their time eating hay. Horses spent 58% of their time standing when fed the pellets and only 37% of their time standing when fed hay. Searching behavior (i.e. sifting through wood shaving bedding for food particles) took up 11.5 (1.4-32) % of the horse's day when fed pellets, but only 1.2 (0-3.5) % of the daily time budget when fed hay. Horses chew more times when eating a hay diet (43,476chews/day) than when eating a pellet diet (10,036chews/day). Fecal pH was lower in horses fed the pelleted diet. Copyright © 2010 Elsevier Inc. All rights reserved.

Recursos depreciados y adquisiciones: Medio y modo de entrada

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Daniel Villalobos-Céspedes

2010-10-01

Full Text Available La depreciación efectiva de medios de trabajo o recursos fijos -maquinaria, equipo, edificio, infraestructura, medios de transporte, entre otros-, ocurre por transferencia de su valor al producto final. En una empresa en compra/venta, los recursos fijos depreciados se transmutan en un medio esencial de entrada, para las adquisiciones -parciales y totales- como modo de entrada. Las teorías de empresa han brindado escasa atención a la influencia sustantiva de los medios de trabajo depreciados, en las adquisiciones como modo de entrada. El rol de medio que desempeñan esos recursos depreciados, es evidente en la historia de las coyunturas de mercado; recesión, depresión, crecimiento y prosperidad. En recesión y depresión, dado el desarrollo de las fuerzas productivas, los medios de trabajo depreciados se tornan en recursos estratégicos. La misión de esos recursos es fortalecer y posicionar a la empresa adquiriente en el mercado global. Los recursos depreciados contribuyen a contrarrestar la tendencia a la baja de la tasa media de ganancia de la empresa adquiriente. Esta investigación busca aportar a las teorías de recursos, un modelo de análisis que contribuya a explicar el papel de medio de entrada de los recursos depreciados, en las adquisiciones como modo de entrada.

MODOS GUIADOS EM SLABS METAMATERIAIS GUIDED MODES IN METAMATERIAL SLABS

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Leonardo André Ambrosio

2006-12-01

Full Text Available Este trabalho apresenta um estudo de revisão de modos propagantes em um guia-de-onda slab constituído de materiais com índices de refração negativo, os chamados metamateriais, Mostra-se que os modos guiados em um slab metamaterial possuem algumas propriedades particulares, tais como a propagação de ondas lentas simétricas ou anti-simétricas, a ausência de modos fundamentais para ondas rápidas e a possibilidade de propagação de ondas guiadas em um meio menos denso. A análise é baseada em expansões de campo no guia e nos espaços superior e inferior ao mesmo.This paper presents a review of the propagation modes in a slab waveguide consisting of negative refraction index materials, known as metamaterials. Some particular properties of guided modes in a metamaterial slab, such as slow symmetric or antisymmetric slow wave propagation, the absence of fundamental modes for fast waves and the possibility of guided waves in a less dense medium. The analysis is based on field expansions in the guide and the upper and lower spaces of it.

Modos de ser enfermeiro-professor-no-ensino-do-cuidadode-enfermagem: um olhar heideggeriano

Directory of Open Access Journals (Sweden)

Luciara Fabiane Sebold

2013-08-01

Full Text Available Estudo qualitativo de abordagem fenomenológica. Objetivou desvelar, à luz do pensamento de Martin Heidegger, os modos de ser dos enfermeiros-professores na vivência de ensinar-aprender o cuidado de enfermagem em uma instituição federal de ensino superior do sul do Brasil. A técnica utilizada para captar os significados foi a entrevista fenomenológica com 11 docentes. A análise permitiu compreender os Modos de Ser enfermeiro-professor, que foram didaticamente apresentados em duas unidades de significado: Modo de ser enfermeiro para o cuidado; Modo de ser professor para o ensino do cuidado. Alguns professores identificam-se como enfermeiros, suas experiências profissionais são suas bases e a coexistência com outros pôde lhes servir de exemplo. Outros se percebem professores de enfermagem e desejam ensinar os desafios de ser enfermeiro, e aprimoram o cuidado através de pesquisas. Ao ensinar, envolvem-se com o universo de ensino no qual o cuidar também é aprender e ensinar.

Effects of hay management and native species sowing on grassland community structure, biomass, and restoration.

Science.gov (United States)

Foster, Bryan L; Kindscher, Kelly; Houseman, Greg R; Murphy, Cheryl A

2009-10-01

Prairie hay meadows are important reservoirs of grassland biodiversity in the tallgrass prairie regions of the central United States and are the object of increasing attention for conservation and restoration. In addition, there is growing interest in the potential use of such low-input, high-diversity (LIHD) native grasslands for biofuel production. The uplands of eastern Kansas, USA, which prior to European settlement were dominated by tallgrass prairie, are currently utilized for intensive agriculture or exist in a state of abandonment from agriculture. The dominant grasslands in the region are currently high-input, low-diversity (HILD) hay fields seeded to introduced C3 hay grasses. We present results from a long-term experiment conducted in a recently abandoned HILD hay field in eastern Kansas to evaluate effects of fertilization, haying, and native species sowing on community dynamics, biomass, and potential for restoration to native LIHD hay meadow. Fertilized plots maintained dominance by introduced grasses, maintained low diversity, and were largely resistant to colonization throughout the study. Non-fertilized plots exhibited rapid successional turnover, increased diversity, and increased abundance of C4 grasses over time. Haying led to modest changes in species composition and lessened the negative impact of fertilization on diversity. In non-fertilized plots, sowing increased representation by native species and increased diversity, successional turnover, and biomass production. Our results support the shifting limitations hypothesis of community organization and highlight the importance of species pools and seed limitations in constraining successional turnover, community structure, and ecosystem productivity under conditions of low fertility. Our findings also indicate that several biological and functional aspects of LIHD hay meadows can be restored from abandoned HILD hay fields by ceasing fertilization and reintroducing native species through

El modo de ser cínico de los dirigentes The Way of Being Cynical of the Leaders

Directory of Open Access Journals (Sweden)

Álvaro Zapata Domínguez

2009-06-01

Full Text Available Bédard (1995, 2002, ha identificado tres modos de ser que ella designa como “Modo de Ser mítico”, “Modo de Ser sistemático”, “Modo de Ser pragmático”, un cuarto modo de Ser, el “Modo de Ser relacional” ha sido propuesto por Alain Chanlat (1995. Estos modos de Ser, son para los autores, la manifestación de las grandes tendencias del pensamiento occidental. En este contexto en el presente artículo se desarrolla el “Modo de Ser Cínico” de los dirigentes. Los valores fundamentales que distinguen el cinismo, son: la resistencia, la impasibilidad, la maldad.Bédard (1995, 2002, has identified three manners of being, that she designates as the “Way of being mythical”, the “Way of being systematic”, and the “Way of being pragmatic”. A fourth way of being, the “Way of being relational” has been proposed by Alain Chanlat (1995. These ways of being, are for the authors, the manifestation of big trends in Western thought. In this context, in the present article, the “Way of being cynical” of the leaders is developed. The fundamental values that distinguish the cynicism are: resistance, impassivity and evil.

Ambientes de aprendizajes para favorecer el desarrollo del pensamiento y lenguaje matemático: la aventura de pensar en clase de matemática

OpenAIRE

Herrera Salas, Adriana

2014-01-01

No hay nada más básico en una disciplina que su modo de pensar. No hay nada más importante en su enseñanza que proporcionar al niño una temprana oportunidad para aprender ese modo de pensar (Bruner, J). Sabemos que los conocimientos disciplinares, por sí solos, pueden resultar de escasa utilidad, por consiguiente, el énfasis debiera focalizarse en el desarrollo de habilidades de pensamiento que permitan la construcción, reconstrucción y significación del conocimiento que facilite la transfere...

Diseño, Desarrollo y Validación de Dispositivo Robótico para la Supresión del Temblor Patológico

OpenAIRE

Rocon, E.; Ruíz, A.F.; Belda-Lois, J.M.; Moreno, J.C.; Pons, J.L.; Raya, R.; Ceres, R.

2008-01-01

Resumen: El uso de robots para la asistencia a personas ha sido considerado por muchos investigadores desde el comienzo de la robótica moderna. Hay muchos factores que están contribuyendo a expandir la necesidad de tales dispositivos, tales como el envejecimiento de la población en muchos países desarrollados y las expectativas generadas para una asistencia médica adecuada a personas discapacitadas. Este artículo describe la implementación de un dispositivo robótico en forma de exoesqueleto p...

Genome-wide association analysis identifies 11 risk variants associated with the asthma with hay fever phenotype.

Science.gov (United States)

Ferreira, Manuel A R; Matheson, Melanie C; Tang, Clara S; Granell, Raquel; Ang, Wei; Hui, Jennie; Kiefer, Amy K; Duffy, David L; Baltic, Svetlana; Danoy, Patrick; Bui, Minh; Price, Loren; Sly, Peter D; Eriksson, Nicholas; Madden, Pamela A; Abramson, Michael J; Holt, Patrick G; Heath, Andrew C; Hunter, Michael; Musk, Bill; Robertson, Colin F; Le Souëf, Peter; Montgomery, Grant W; Henderson, A John; Tung, Joyce Y; Dharmage, Shyamali C; Brown, Matthew A; James, Alan; Thompson, Philip J; Pennell, Craig; Martin, Nicholas G; Evans, David M; Hinds, David A; Hopper, John L

2014-06-01

To date, no genome-wide association study (GWAS) has considered the combined phenotype of asthma with hay fever. Previous analyses of family data from the Tasmanian Longitudinal Health Study provide evidence that this phenotype has a stronger genetic cause than asthma without hay fever. We sought to perform a GWAS of asthma with hay fever to identify variants associated with having both diseases. We performed a meta-analysis of GWASs comparing persons with both physician-diagnosed asthma and hay fever (n = 6,685) with persons with neither disease (n = 14,091). At genome-wide significance, we identified 11 independent variants associated with the risk of having asthma with hay fever, including 2 associations reaching this level of significance with allergic disease for the first time: ZBTB10 (rs7009110; odds ratio [OR], 1.14; P = 4 × 10(-9)) and CLEC16A (rs62026376; OR, 1.17; P = 1 × 10(-8)). The rs62026376:C allele associated with increased asthma with hay fever risk has been found to be associated also with decreased expression of the nearby DEXI gene in monocytes. The 11 variants were associated with the risk of asthma and hay fever separately, but the estimated associations with the individual phenotypes were weaker than with the combined asthma with hay fever phenotype. A variant near LRRC32 was a stronger risk factor for hay fever than for asthma, whereas the reverse was observed for variants in/near GSDMA and TSLP. Single nucleotide polymorphisms with suggestive evidence for association with asthma with hay fever risk included rs41295115 near IL2RA (OR, 1.28; P = 5 × 10(-7)) and rs76043829 in TNS1 (OR, 1.23; P = 2 × 10(-6)). By focusing on the combined phenotype of asthma with hay fever, variants associated with the risk of allergic disease can be identified with greater efficiency. Copyright © 2013 American Academy of Allergy, Asthma & Immunology. Published by Mosby, Inc. All rights reserved.

Mental health associations with eczema, asthma and hay fever in children

DEFF Research Database (Denmark)

Hammer-Helmich, Lene; Linneberg, Allan; Obel, Carsten

2016-01-01

OBJECTIVE: This study aimed to examine the association of eczema, asthma and hay fever with mental health in a general child population and to assess the influence of parental socioeconomic position on these associations. METHODS: We conducted a cross-sectional health survey of children aged 3, 6......, 11 and 15 years in the City of Copenhagen, Denmark. Individual questionnaire data on eczema, asthma, and hay fever and mental health problems assessed using the Strengths and Difficulties Questionnaire (SDQ) was linked to register data on demographics and parental socioeconomic position. 9215 (47...... with eczema, asthma or hay fever had more emotional, conduct and hyperactivity problems, but not peer problems, compared with children without these diseases. Atopic diseases added equally to the burden of mental health problems independent of socioeconomic position....

Long-term agricultural management maximizing hay production can significantly reduce belowground C storage

NARCIS (Netherlands)

Sochorová, L.; Jansa, J.; Verbruggen, E.; Hejcman, M.; Schellberg, J.; Kiers, E.T.

2016-01-01

Liming and fertilization of grasslands have been used for centuries to sustain hay production. Besides improving hay yields, these practices induce compositional shifts in plant and soil microbial communities, including symbiotic arbuscular mycorrhizal (AM) fungi. However, in spite of increasing

Effect of hay on performance of Holstein calves at suckling and post-weaning

Directory of Open Access Journals (Sweden)

Robson Kyoshi Ueno

2014-10-01

Full Text Available The objective of this work was to evaluate the performance of Holstein calves in suckling and post-weaning phases, intensively managed during suckling in the absence or presence of hay. Twenty-four male Holstein calves, at an average age of 15 days and initial weight of 43 kg were used in the experiment. The experimental design was completely randomized, consisting of two treatments and six replications. The treatments were as follows: 1 suckling with milk substitute + initial concentrate for calves, ad libitum + temperate grass hay (oat/ryegrass, ad libitum; 2 suckling with milk substitute + initial concentrate for calves, ad libitum. No significant difference was found between treatments for weight gain and feed conversion. However, the supply of hay caused an increase in daily dry matter intake (2.127 vs 1.894 kg. The intake of hay promoted greater stimulus to consumption of concentrate and greater weight at weaning.

Effect of dietary restriction and hay inclusion in the diet of slow-growing broilers

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Karla P. Picoli

2014-11-01

Full Text Available The objective of this study was to evaluate the effect of dietary restriction and inclusion of alfalfa (Medicago sativa L. and Bermudagrass (Cynodon dactylon cv Coastal hays in the diets of ISA Label JA57 slow-growing male broilers on performance, gastrointestinal tract characteristics, and economic viability. A total of 272 broilers at 21 days old were distributed in a randomized experimental design with four treatments, four replicates, and 17 birds per experimental unit. The treatments consisted of ad libitum concentrated feed (control intake, feed restriction (80% of the control intake, and feed restrictions with supplementation of alfalfa hay (80% of the control intake+20% alfalfa or Bermudagrass hay (80% control intake+20% Bermuda. Dietary restriction, with and without hay inclusion, negatively affected (P<0.05 the weight gain of the birds; however, feed conversion was improved (P<0.05 for animals that underwent only restricted feeding, which also had the best economic indices. Birds subjected to dietary restriction and inclusion of hays showed changes (P<0.05 in the gastrointestinal organs and intestinal morphology.

Las webs de las comunidades autónomas: Imagen corporativa y servicios

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Fernando Sabés Turmo

2012-04-01

Full Text Available Este artículo ofrece un análisis de los portales web institucionales de las Comunidades Autónomas españolas, unas páginas en las que la comunicación corporativa se une a la necesidad de prestar servicios a los ciudadanos. Además, no hay que olvidar que la aprobación de la Ley 11/2007, de 22 de junio, de acceso electrónico de los ciudadanos a los Servicios Públicos, supone una auténtica revolución en cuanto a la oferta de servicios desde estos portales. Estas páginas se convierten en la puerta de entrada de los ciudadanos a las Instituciones y suponen un elemento vital en la imagen que desde ellas se quiere proyectar. De todos modos, estamos ya en una fase mucho más avanzada, en la que la imagen corporativa ha de ir de la mano con los servicios de e-Administración que se deben ir implementando en todas las Instituciones públicas.

Unamuno, "abismo de tragedia religiosa”

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Lorenzo Martín Martín

1993-12-01

Full Text Available La obra de Unamuno refleja la tremenda lucha de un alma singular atormentada por los problemas esenciales del ser humano, sobre todo el de la muerte y la resurrección, vividos de un modo angustioso, pero profundamente religioso. Pues religioso y mucho era el Rector de la Universidad Salmantina, aunque hay criticos que señalan que perdió la fe “por pretender racionalizarla, por intentar probarla; y al querer reducirla a la evidencia de la ciencia natural, se sintió vencido. “Juicio riguroso y simplificador hecho desde la estricta ortodoxia católica, que se refuta con las propias palabras de Unamuno: “tengo, sí, con el afecto, con el corazón, con el sentimiento, una fuerte tendencia al cristianismo, sin atenerme a dogmas de esta o aquella confesión cristiana ... me repugnan los ortodoxos, sean católicos o protestantes -éstos suelen ser tan intransigentes como aquellos -, que niegan cristianismo a quienes no interpretan los Evangelios como ellos.

História dos modos gregos : história da estrutura dos gêneros musicais gregos

OpenAIRE

Lucas Fernandes de Paula

2015-01-01

A pesquisa que se desenvolve sobre a história da música tem por objetivos gerais, compreender, explicar, diversas medidas do objeto de análise: os modos gregos. Especificamente, os objetivos constituem narrativas historiográficas que permitam refletir, no tempo, conteúdos relacionados, e uma história da música perpetrada sob a lente dos chamados modos gregos; pensar o conceito de modos gregos em seu envolvimento com conhecimentos teóricos e práticos em Geografia, Física, Matemática, Filosofia...

Burguer City. Repercusiones de los modos de producción en la ciudad contemporánea

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Ignacio Grávalos Lacambra

2016-12-01

Full Text Available La revolución científica del trabajo producida a principios del siglo XX supuso una transformación social y cultural. El innovador modo de abordar los procesos productivos, modificó los modelos que estructuraban la sociedad industrial. Progresivamente, estas cuestiones parecen haber condicionado el modo de pensar la nueva metrópoli. El artículo hilvana dichos paralelismos producción-sociedad-ciudad, dado que los tres factores resultan unívocamente ligados y, de ese modo, pretende analizar diversas claves de la realidad contemporánea.

Dung matters : An experimental study into the effectiveness of using dung from hay-fed livestock to reconstruct local vegetation

NARCIS (Netherlands)

Schepers, Mans; Van Haaster, Henk

2015-01-01

This paper explores the relationship between standing vegetation and dung from hay-fed cattle and sheep. In an experimental study, hay is retrieved from a known hay field, surrounded by a semi-open landscape of hedgerows, forests and heather fields. The hay is fed to cattle and sheep, after which

Los manuales de confesión para indígenas del siglo XVI (Hacia un nuevo modelo de formación de la conciencia

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Luis ARIAS GONZÁLEZ

2009-12-01

Full Text Available Cuando se hace mención del impacto de la llegada de los españoles sobre los pueblos indígenas, se suele hablar casi siempre de aspectos tangibles y cuantificables: descenso demográfico, cambio de habitats, migraciones, nuevo sistema económico, dominación política, cambio de estructura social, etc.; sin embargo, hay otra serie de aspectos más difíciles de aprehender este fenómeno de aculturación, absorción cultural o «desestructuración». Nos referimos a los denominados de una forma excesivamente genérica como objeto de estudio por parte de la «Historia Espiritual» o «Historia de las Mentalidades», por utilizar el término actualmente más reiterado en la bibliografía reciente. Dentro de este «etéreo» apartado de la Historia, la Conciencia como capacidad de distinción entre el Bien y el Mal con toda su complejidad a lo largo del tiempo, debería ocupar un lugar por sí misma; no estaría de más que en estos momentos en que todo se considera digno de ser considerado como objeto de grandes historias —desde el calzado a la vida privada—, se publicase una «Historia de la Conciencia». El objetivo de este artículo es mucho más modesto, sólo pretende ayudar a entender la formación de la Conciencia cristiana de los indígenas y su proceso, a través de los «manuales de confesión» del siglo XVI; sin embargo, hay otros muchos temas anejos a éste y presentes en los «manuales» que estudiamos; temas que no vamos a desarrollar del todo, pero que ofrecemos a modo de sugerencia para otros especialista y futuros trabajos.

Fermentation characteristics in hay from Cynodon and crop stubble treated with exogenous enzymes

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Yânez André Gomes Santana

Full Text Available ABSTRACT The effect of treatment with xylanase and β-glucanase was evaluated for gas production and the ruminal degradation of nutrients from the hay of Tifton 85 grass and the stubble of maize, sorghum, peanut, sunflower and sesame crops. Two commercial fibrolytic enzymes were used (Dyadic xylanase PLUS - Xylanase; BrewZyme LP-β-glucanase, added to the hay at doses of 7.5 units of endoglucanase and 0.46 units of xylanase per 500 mg/gDM, for the cellulase and xylanase products respectively. The chemical composition of the hay was determined for no enzyme application and 24 hours after enzyme treatment, and the in vitro gas production and in situ microbial degradation was estimated for dry matter, organic matter, neutral detergent fibre and truly-degradable organic matter after 24 hours of incubation in the rumen. Enzyme treatment of the hay from Tifton 85 grass and the stubble of maize, sorghum, sunflower, peanut and sesame crops with the exogenous fibrolytic enzymes β-glucanase and xylanase influences in vitro gas production, and the in situ degradation of dry matter, organic matter, neutral detergent fibre and truly-degradable organic matter in the rumen. This variation can be attributed to differences in the chemical composition of the hay from the grass and the crop stubble, and to the different ways the enzymes act upon the cell wall.

Effects of feeding ratio of beet pulp to alfalfa hay or grass hay on ruminal mat characteristics and chewing activity in Holstein dry cows.

Science.gov (United States)

Izumi, Kenichi; Unno, Chigusa

2010-04-01

The influence of the feeding ratio of a non-forage fiber source and hay on ruminal mat characteristics and chewing activity was evaluated in dairy dry cows. Cows were fed four different diets: the ratios of alfalfa hay (AH) to beet pulp (BP) were 8:2 (dry matter basis, A8B2) and 2:8 (A2B8), and those of grass hay (GH) to BP were 8:2 (G8B2) and 2:8 (G2B8). Total eating time was decreased with increasing BP content (P rumination time for AH was shorter than that for GH (P content (P ruminal mat was detected by using a penetration resistance test of the rumen digesta. Penetration resistance value (PRV) of ruminal mat was highest with the G8B2 diet and PRV decreased with increasing BP content (P ruminal mat was greater for increasing BP content (P ruminal mat PRV on total rumination time resulted in a high positive correlation (r = 0.744; P ruminal mat stimulated rumination activity and a ruminal mat could be formed, although it was soft even when cows were offered a large quantity of BP.

Treatment of hay fever.

Science.gov (United States)

Wood, S F

1989-01-01

The range of treatments for hay fever available to the general practitioner has changed considerably in recent years. New antihistamines have addressed the problem of sedation and moved towards one daily dose; nasally applied corticosteroids avoid the need for systemic steroid therapy and its potential adverse effect; and regulatory decisions have set a trend away from immunotherapy in general practice. However, knowledge about the mechanism of action of immunotherapy is increasing and new developments with improved safety profiles include allergen polymers, allergoids, oral immunotherapy and nasal immunotherapy. Choice of treatment depends, as always, on the individual circumstances of the patient and his or her disease. PMID:2556545

Characterisation of Arabica Coffee Pulp - Hay from Kintamani - Bali as Prospective Biogas Feedstocks

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Hendroko Setyobudi Roy

2018-01-01

Full Text Available The huge amount of coffee pulp waste is an environmental problem. Anaerobic fermentation is one of the alternative solutions. However, availability of coffee pulp does not appear for year-round, whereas biogas needs continuous feedstocks for digester stability. This research uses coffee pulp from Arabica Coffee Factory at Mengani, Kintamani, Bali–Indonesia. The coffee pulp was transformed into coffee pulp-hay product by sun drying for preservations to extend the raw materials through the year. Characterization of coffee pulp-hay was conducted after to keep for 15 mo for review the prospect as biogas feedstocks. Several parameters were analyzed such as C/N ratio, volatile solids, carbohydrate, protein, fat, lignocellulose content, macro-micro nutrients, and density. The review results indicated that coffee pulp-hay is prospective raw material for biogas feedstock. This well-proven preservation technology was able to fulfill the continuous supply. Furthermore, some problems were found in the recent preliminary experiment related to the density and fungi growth in the conventional laboratory digester. Further investigation was needed to implement the coffee pulp – hay as biogas feedstocks.

¿Hay un hipertexto en esta clase? Dispositivos pedagógicos, tecnología y subjetividad

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Julieta Armella

2012-01-01

Full Text Available En este artículo se presentan resultados de una investigación en torno a los procesos de transformación de los dispositivos pedagógicos, atendiendo a la introducción de las tecnologías de la información y la comunicación (TIC en nuestras sociedades. El trabajo de campo fue realizado en escuelas secundarias públicas de la Región Metropolitana de Buenos Aires. Entendemos que las TIC tienen efectos en nuestras formas de pensar y actuar en el mundo, en los procesos de producción de subjetividad, en cuanto forman parte de la transformación material y simbólica de nuestra vida cotidiana y de las instituciones. Las escuelas no han quedado exentas de ello: hoy se encuentran interpeladas por los modos en que se adquieren los procesos de producción, distribución y acceso a la cultura. Por medio del análisis de episodios nos proponemos describir las modalidades en que los procesos de informatización de la vida social se expresan en el espacio escolar. Ante la pregunta ¿hay un hipertexto en esta clase? procuramos describir algunas de las dinámicas que caracterizan los dispositivos pedagógicos en tiempos digitales y/o postalfabéticos.

Health service use among children with and without eczema, asthma, and hay fever

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Hammer-Helmich L

2016-09-01

Full Text Available Lene Hammer-Helmich,1,2 Allan Linneberg,1,3,4 Simon Francis Thomsen,5,6 Line Tang,1 Charlotte Glümer1,7 1Research Center for Prevention and Health, The Capital Region of Denmark, Copenhagen, 2Department of Real World Evidence and Epidemiology, H. Lundbeck A/S, Valby, 3Department of Clinical Experimental Research, Rigshospitalet, 4Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, 5Department of Dermatology, Bispebjerg Hospital, 6Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 7Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Aalborg, Denmark Background: Atopic diseases, for example, eczema, asthma, and hay fever, are among the most common chronic diseases of childhood. Knowledge on health service use among children with atopic disease is limited. This study aimed to investigate the total use and costs of health services for children with and without eczema, asthma, and hay fever in a Danish general population. Methods: We conducted a health survey with four complete birth cohorts from the City of Copenhagen. Individual questionnaire data on eczema, asthma, and hay fever for children aged 3, 6, 11, and 15 years were linked to register information on use and costs of health services and prescribed medication and parental education. In total 9,720 children participated (50.5%. Results: We found increased health service use (number of additional consultations per year [95% confidence interval] among children with current eczema symptoms (1.77 [1.29–2.26], current asthma symptoms (2.53 [2.08–2.98], and current hay fever symptoms (1.21 [0.74–1.67], compared with children without these symptoms. We also found increased use of prescribed medication and most subtypes of health services. Current asthma symptoms and current eczema symptoms, but not current hay fever symptoms, increased the health

Hay se agt Bybelse beginsels vir die ekonomiese lewe

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J.S. van Zyl

1996-03-01

Full Text Available Hay’s eight Biblical principles for economic lifeDonald Hay used the idea of stewardship to derive eight Biblical principles for economic life. The purpose of this article is to contribute commentary on and criticism of Hay's approach. The eight Biblical principles cover three main issues, namely creation and man's dominion, man and his work, and the distribution of goods. While social principles can be in conflict with each other, Biblical principles ought not to be in conflict. The test to determine whether the principles have been correctly derived is to revert back to the original text constantly. Upon further reflection it is possible to arrive at further applications of Biblical principles in relation to the sphere of economic life.

Rapid analysis of hay attributes using NIRS. Final report, Task II alfalfa supply system

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-10-24

This final report provides technical information on the development of a near infrared reflectance spectroscopy (NIRS) system for the analysis of alfalfa hay. The purpose of the system is to provide consistent quality for processing alfalfa stems for fuel and alfalfa leaf meal products for livestock feed. Project tasks were to: (1) develop an NIRS driven analytical system for analysis of alfalfa hay and processed alfalfa products; (2) assist in hiring a qualified NIRS technician and recommend changes in testing equipment necessary to provide accurate analysis; (3) calibrate the NIRS instrument for accurate analyses; and (4) develop prototype equipment and sampling procedures as a first step towards development of a totally automated sampling system that would rapidly sample and record incoming feedstock and outbound product. An accurate hay testing program was developed, along with calibration equations for analyzing alfalfa hay and sun-cured alfalfa pellets. A preliminary leaf steam calibration protocol was also developed. 7 refs., 11 figs., 10 tabs.

Representación de raza, clase y moral en la televisión del Perú. Un análisis social de “Magaly TeVe” y “Al fondo hay sitio”

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Mario E. Sánchez Dávila

2013-11-01

Full Text Available Este artículo se propone analizar la representación de raza, clase y moral en los programas televisivos “Magaly TeVe” y “Al fondo hay sitio” desde una mirada antro-pológica de la televisión, comprendiendo sus dimensiones comunicativas, discursivas y sociales. Por un lado, al analizar el discurso de “Magaly TeVe” fue fácil constatar que el porqué y el cómo del éxito de la estrategia comunicativa de este fenómeno televisivo alu-dían estrechamente a códigos morales socialmente compartidos y a un modo configurado de organización, relación e interacción ya validados en nuestro tejido social. Por otro lado, al examinar el discurso de “Al fondo hay sitio” fue sencillo comprobar que hemos confundido, ingenuamente, inclusión con eventuales redenciones dentro de un marco de convergencia espacio-temporal de dos códigos culturales contradictorios y que perma-nentemente se relacionan e interactúan desde directrices de raza y clase que funcionan como núcleos semánticos que configuran, por un lado, la construcción narrativa y, por el otro, una determinada relación e interacción social de poder y violencia simbólica entre sus personajes.

Volatile fatty acid profile for grass hay or alfalfa hay fed to alpacas (Vicugna pacos).

Science.gov (United States)

Oldham, C L; Robinson, T F; Hunter, Z R; Taylor, L; White, J; Johnston, N P

2014-10-01

The purpose of this study was to determine the diurnal composition and concentration of volatile fatty acids (VFA) and to determine VFA composition and concentration differences between stomach compartment 1 (C1) and caecum of alpacas fed grass and alfalfa hay. The study was divided into two experiments. In Experiment 1 (EXP 1), 10 male alpacas (3+ years old, 65 kg BW) were divided into two groups, housed in drylot pens, provided ad libitum water and fed alfalfa (AH) or grass hay (GH) for 30 days. The alpacas were slaughtered and the digestive tract collected, divided into sub-tract sections, weighed and digesta sampled for pH, dry matter (DM) and NDF. Volatile fatty acid composition and concentration were determined on C1 and caecal material. Four adult male (3+ years old, 60 kg BW), C1 fistulated alpacas were housed in metabolism crates and divided into two forage groups for Experiment 2 (EXP 2). Alpacas were fed the forages as in EXP 1. Diurnal C1 VFA samples were drawn at 1, 3, 6, 9, 12, 18 and 24 h post-feeding. There were no differences between forages for tract weight, C1 and caecum digesta DM or NDF. Differences were noted (p alpacas and the diurnal VFA patterns. Composition of VFA is similar to other ruminant species. Journal of Animal Physiology and Animal Nutrition © 2013 Blackwell Verlag GmbH.

Passage kinetics of digesta in horses fed with coastcross hay ground to different degrees

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Vinicius Pimentel Silva

2014-10-01

Full Text Available This study was conducted to evaluate the kinetics, physicochemical characteristics and particle size of digesta in the right ventral colon (RVC of horses fed coastcross hay ground to different degrees. Four horses fitted with cannulae in the RVC were used and were fed the following forms of hay: long, chopped, ground to 5 mm and ground to 3 mm. A Latin Square 4x4 study design was used. Each experimental period included 10 days for diet adaptation, four days for feces collection and one day for digesta collection. The kinetics of the particulate and solute phases of digesta were evaluated based on the mean retention time (MRT, passage rate (k and transit time (TT using two external markers: Cr-NDF and Co-EDTA. The TT of solid phase digesta was 3 hours longer (P0.05 in k or MRT in either the liquid or solid phase of digesta as a function of the different degrees of hay grinding. However, the liquid phase of digesta presented a higher k than the solid phase, with values of 3.28 and 2.73 h-1 being obtained, respectively. The smallest particle size and the lowest neutral detergent fiber contents in colon digesta were observed when hay ground to 3 mm was offered, leading to values of 0.51 mm and 53.46%, respectively. Grinding the hay increased the transit time of the liquid phase in the digestive tract of the horses, whereas no change in the kinetics of the solid phase digesta was observed. The grinding of hay reduced the NDF and the average particle size in the right ventral colon.

Ammoniated babassu palm hay in anglo-nubian goat diets

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Antonia Leidiana Moreira

Full Text Available ABSTRACT Leaves of babassu may be used in diets for goats under maintenance, however, it is a low-quality roughage due to its high fiber content. The chemical treatment by ammonia causes reduction in the proportion of the cell wall, in addition to providing non-protein nitrogen for the microbial protein synthesis in the rumen. Babassu palm hay ammoniated with 4% urea (BHAU4% was evaluated in this study as a substitute for guinea grass hay in the maintenance diets of goats in terms of intake, digestibility in vivo, and the partitioning of energy and nitrogen compounds. Twenty Anglo-Nubian male goats were used in a randomised block design with four treatments (diets containing 0, 33, 66, or 100% BHAU4% and five replicates (animals/block. The chemical compositions of the feeds, leftovers, faeces, nitrogen and crude energy of the urine were evaluated. In addition, the rumen fluid pH, the rumen N-NH3, and the blood serum urea were evaluated. The digestibility of the dry matter (DM, organic matter (OM, crud protein (CP, neutral detergent fiber (NDFap and detergent acid (ADFap, corrected for ash and protein, declined (P<0.05 0.0939, 0.0722, 0.0953, 0.1113, and 0.2666%, respectively, with the 1% inclusion of babassu palm hay in the diet. A negative linear effect (P<0.05 was observed in the ingested nitrogen (N, excretion of N in the urine, retained N, and N balance, with decreases of 0.15711, 0.0225 and 0.1071 g/day and 0.1388%, respectively, per percentage unit of the babassu palm hay included in the diet. The intake and digestibility of the DM and nutrients are reduced with the inclusion of BHAU4% in maintenance diets for goats, with positive nitrogen balance and stability of the ruminal pH and N-NH3 as well as blood urea, which presented values within the normal physiological range for goats.

Jogo das perguntas: o modo operativo "AND" e o viver juntos sem ideias

OpenAIRE

Eugenio, Fernanda; Fiadeiro, João

2013-01-01

O jogo das perguntas "como viver juntos?" e "como não ter uma ideia?" compõe o Modo Operativo AND, sistema que emergiu da contaminação recíproca entre a Composição em Tempo Real e a Etnografia como Performance Situada. No plano "como viver juntos?", o jogo tem o ritmo da improvisação coletiva em tempo real - podendo ser jogado no interior de qualquer acontecimento quotidiano ou ser praticado de modo laboratorial. No plano "como não ter uma ideia?", o jogo assume o ritmo da investigação solitá...

Chevilly Larue, L'Hay les Roses: twin geothermal plants

International Nuclear Information System (INIS)

Jeanson, E.

1995-01-01

The Chevilly Larue/L'Hay les Roses (Paris region, France) low energy geothermal plants are interconnected and thus represent the greatest geothermal heat network in Europe. The two plants are 2.5 km apart and supply 13000 collective lodgings in energy using a 60 km network with a 75 MW power. Gas or fuel auxiliary heating systems are used in winter to increase water temperature up to 105 C, but the part of energy released by geothermics remains of about 70 to 80%. The network will be extended in the next years to Fresnes and Villejuif neighbouring towns. In 1996, the SEMHACH company, which manage the two plants, will put into service a mixed electricity and heat production plant in L'Hay les Roses. (J.S.). 2 photos

NAVA: Nuevo modo de Ventilación

OpenAIRE

Martín Lorenzo, María del Carmen; Montón Giménez, Nuria; Paz Martín, Daniel

2013-01-01

La Ventilación Asistida Ajustada Neuronalmente (NAVA) es un nuevo modo de Ventilación Mecánica Asistida que utiliza la actividad eléctrica diafragmática (Edi) para el control del respirador. La Edi es registrada a través de un catéter esofágico, y representa directamente el impulso respiratorio central y, por lo tanto, la duración y la intensidad con que el paciente desea ventilar. La asistencia inspiratoria mecánica se inicia en el momento en que el centro respiratorio lo demanda, y el di...

Rumen volatile fatty acids and milk composition from cows fed hay, haylage, or urea-treated corn silage.

Science.gov (United States)

Schingoethe, D J; Voelker, H H; Beardsley, G L; Parsons, J G

1976-05-01

Alfalfa-brome hay, haylage, .5% urea-treated corn silage, or .5% urea plus 1% dried whey-treated corn silage was fed as the only forage to one of four groups of 10 lactating cows per group for a lactation trial of 10 wk. Rumen samples were collected via stomach tube 3 to 4 h after the morning feeding. The pH of the rumen samples from cows fed hay was higher than for cows fed haylage, urea-treated corn silage, and urea-whey corn silage, 6.69 versus 6.36, 6.40, and 6.50. Total volatile fatty acids and propionate were highest from cows fed urea-whey corn silage and were higher on all three fermented forages than cows fed hay. Acetate/propionate ratio was highest from cows fed hay and lowest from cows fed corn silages. Butyrate was highest from cows fed haylage or hay. Milk protein composition was not affected by ration although nonprotein nitrogen of milk was highest from cows fed the urea-treated corn silages. Oleic acid and total unsaturated fatty acids were lowest in milk fat from cows fed hay while palmitic acid was highest from cows fed hay and haylage. These results suggest that type of forage fed may cause small changes in rumen fermentation and in milk composition. The importance of these changes is unknown but may affect properties of dairy products produced from this milk.

Fibrolytic enzyme and ammonia application effects on the nutritive value, intake, and digestion kinetics of bermudagrass hay in beef cattle.

Science.gov (United States)

Romero, J J; Zarate, M A; Queiroz, O C M; Han, J H; Shin, J H; Staples, C R; Brown, W F; Adesogan, A T

2013-09-01

The objectives were to compare the effect of exogenous fibrolytic enzyme (Biocellulase A20) or anhydrous ammonia (4% DM) treatment on the nutritive value, voluntary intake, and digestion kinetics of bermudagrass (Cynodon dactylon cultivar Coastal) hay harvested after 2 maturities (5- and 13-wk regrowths). Six individually housed, ruminally cannulated Brangus steers (BW 325 ± 10 kg) were used in an experiment with a 6 × 6 Latin square design with a 3 (additives) × 2 (maturities) factorial arrangement of treatments. Each period consisted of 14 d of adaptation and 7, 4, 1, 1, and 4 d for measuring in vivo digestibility, in situ degradability, no measurements, rumen liquid fermentation and passage indices, and rate of solid passage, respectively. Steers were fed hay for ad libitum intake and supplemented with sugarcane molasses and distillers grain (supplement total of 2.88 kg DM/d). Enzyme did not affect the nutritional composition of hay but ammonia treatment decreased hay NDF, hemicellulose, and ADL concentrations and increased the CP concentration particularly for the mature lignified 13-wk hay. The enzyme increased NDF and hemicellulose digestibility of the 5-wk hay but decreased those of the 13-wk hay. Ammoniation decreased intake of hay but increased digestibility of DM, OM, NDF, hemicellulose, ADF, and cellulose and increased the ruminal in situ soluble and potentially digestible fractions and the rate of DM degradation of the 13-wk hay. Also, ammoniation increased the concentrations of ruminal NH3, total VFA, acetate, and butyrate but enzyme treatment did not. Neither enzyme addition nor ammoniation affected rate of liquid and solid passage. In conclusion, ammoniation decreased the concentration of most fiber fractions, decreased the intake of hays, and increased their CP concentration, in vivo digestibility, and in situ degradability at both maturities whereas enzyme application increased fiber digestibility of the 5-wk hay but decreased it in the case of

[A review on studies and applications of near infrared spectroscopy technique(NIRS) in detecting quality of hay].

Science.gov (United States)

Ding, Wu-Rong; Gan, You-Min; Guo, Xu-Sheng; Yang, Fu-Yu

2009-02-01

The quality of hay can directly affect the price of hay and also livestock productivity. Many kinds of methods have been developed for detecting the quality of hay and the method of near infrared spectroscopy (NIRS) has been widely used with consideration of its fast, effective and nondestructive characteristics during detecting process. In the present paper, the feasibility and effectiveness of application of NIRS to detecting hay quality were expounded. Meanwhile, the advance in the study of using NIRS to detect chemical compositions, extent of incursion by epiphyte, amount of toxicant excreted by endogenetic epiphyte and some minim components that can not be detected by using chemical methods were also introduced detailedly. Based on the review of the progresses in using NIRS to detect the quality of hay, it can be concluded that using NIRS to detect hay quality can avoid the disadvantages of time wasting, complication and high cost when using traditional chemical method. And for better utilization of NIRS in practice, some more studies still need to be implemented to further perfect and improve the utilization of NIRS for detecting forage quality, and more accurate modes and systematic analysis software need to be established in times to come.

The HayWired Earthquake Scenario—Earthquake Hazards

Science.gov (United States)

Detweiler, Shane T.; Wein, Anne M.

2017-04-24

The HayWired scenario is a hypothetical earthquake sequence that is being used to better understand hazards for the San Francisco Bay region during and after an earthquake of magnitude 7 on the Hayward Fault. The 2014 Working Group on California Earthquake Probabilities calculated that there is a 33-percent likelihood of a large (magnitude 6.7 or greater) earthquake occurring on the Hayward Fault within three decades. A large Hayward Fault earthquake will produce strong ground shaking, permanent displacement of the Earth’s surface, landslides, liquefaction (soils becoming liquid-like during shaking), and subsequent fault slip, known as afterslip, and earthquakes, known as aftershocks. The most recent large earthquake on the Hayward Fault occurred on October 21, 1868, and it ruptured the southern part of the fault. The 1868 magnitude-6.8 earthquake occurred when the San Francisco Bay region had far fewer people, buildings, and infrastructure (roads, communication lines, and utilities) than it does today, yet the strong ground shaking from the earthquake still caused significant building damage and loss of life. The next large Hayward Fault earthquake is anticipated to affect thousands of structures and disrupt the lives of millions of people. Earthquake risk in the San Francisco Bay region has been greatly reduced as a result of previous concerted efforts; for example, tens of billions of dollars of investment in strengthening infrastructure was motivated in large part by the 1989 magnitude 6.9 Loma Prieta earthquake. To build on efforts to reduce earthquake risk in the San Francisco Bay region, the HayWired earthquake scenario comprehensively examines the earthquake hazards to help provide the crucial scientific information that the San Francisco Bay region can use to prepare for the next large earthquake, The HayWired Earthquake Scenario—Earthquake Hazards volume describes the strong ground shaking modeled in the scenario and the hazardous movements of

¿Hay una crisis en la Medicina en los Estados Unidos?

Directory of Open Access Journals (Sweden)

Augusto Sarmiento Rosillo

2004-09-01

En los estados Unidos esto ha cambiado profunda-mente. Con mayor frecuencia, los médicos ya no gozan del mismo grado de confianza que tenían. Muchos pacientes ven al médico como un hombre de negocios buscando oportunidades de enriquecimiento personal a expensas de aquellos que necesitan sus servicios. En gran medida están en lo cierto. Los médicos, por ejemplo, du-rante mucho tiempo consideraron inapropiado mercadear sus servicios de la manera en que el comercio mercadea sus productos. Hoy, la publicidad y el mercadeo dentro de la medicina ha alcanzado niveles obscenos. Se hace a través de todos los medios, sean periódicos o revistas, radio o televisión. Declaraciones de logros exagerados o no probados se hacen impunemente. El público que sospecha y sabe, reacciona manifestando dudas acerca de las acciones y discursos de sus médicos. Ellos saben que con el propósito de tener un mejor provecho económico, muchos médicos recomiendan exámenes diagnósticos e inician tratamientos que son innecesarios, al igual que solicitan valoraciones por otras especialidades con el único propósito de ser consultados recíprocamente en el futuro. Son conscientes del abuso de las cirugías así como de la práctica de procedimientos cuestionables aún no probados. Ellos leen la prensa y ven en televisión escándalo tras escándalo involucrando médicos con frecuencia..

Uudised : Isaac Hayes loobub koka rollist. Bergeni festival soomestub

Index Scriptorium Estoniae

2006-01-01

Satiirilises animaseriaalis "South Park" mustanahalise koolikoka rollis lugenud soulilauljast Isaak Hayes'ist. 24. maist 6. juunini kestval Bergeni kultuurifestivalil Norras tulevad esitusele Jean Sibeliuse sümfooniad, Magnus Lindbergi heliteosed, koreograaf Tomi Paasoneni teos "Olotila" ja pianist Juho Pohjoneni klverikontsert

Digestibility Nutrient Contents on Acacia Seyal, Balanities Aegyptiaca and Chloris Gayana Hay

International Nuclear Information System (INIS)

Kiliti, J.K

2002-01-01

A study was carried to determine the nutrients and their digestibility in Acacia seyal and Balanities aegyptiaca legume browses and compared with Chloris gayana hay. Samples were taken from these two leguminous forages at Mogotio and Emining divisions of Koibatek district and fed to sheep in a change over design. The sheep were housed in individual pens and fitted with faecal collection bags. They were fed and faeces collected twice daily. An adaptation period of 14 days, Faecal collection of 7 days and changeover of 10 days were enforced. Nutrients analysed for during digestibility included DM, OM, CP, NDF, Hemicellulose and Cellulose. The nutrients compositions were 651, 916, 112, 370, 339, 59 and 84; 665, 920, 152, 443, 341, 89 and 80, 845, 924, 68, 730, 463, 57, and 76 for DM, OM, CP, NDF, ADF, and ash in Acacia seal, Balanities aegyptiaca and Chloris gayana hay. The in vivio digestibility results were different (p<0.05) for all nutrients. The digestibilities of DM, OM, CP NDF, Hemicellulose and Cellulose in Acacia seyal, Balanities aegyptiaca and Chloris gayana hay were 54.7, 66.5, 32.8, 40.3, 51.7, and 82.7; 48.5, 58.9, 67.4, 36.9, 36.3, and 40.6 and 48.1, 50.4, 41.7, 53.7, 63.0 and 62.3% respectively. The two legume forages had nutrients that had higher digestibility than hay except for fibre

Effects of feeding steers extruded flaxseed on its own before hay or mixed with hay on animal performance, carcass quality, and meat and hamburger fatty acid composition.

Science.gov (United States)

Vahmani, P; Rolland, D C; McAllister, T A; Block, H C; Proctor, S D; Guan, L L; Prieto, N; López-Campos, Ó; Aalhus, J L; Dugan, M E R

2017-09-01

The objective of the present experiment was to determine if carcass quality and fatty acid profiles of longissimus thoracis (LT) and hamburger would be affected by feeding steers extruded flaxseed on its own followed by hay (non-TMR) compared to when hay and extruded flaxseed were fed together (TMR). Forty-eight steers in six pens were assigned to TMR or non-TMR for an average of 242days. Dry matter intake was lower for non-TMR versus TMR steers (10.56 vs. 11.42kg/d; P=0.02), but final live weight (610±0.50kg) and average daily gain (1.18±0.02kg/d) did not differ. Compared to TMR, feeding non-TMR enriched LT and hamburger with α-linolenic acid (ALA; 18:3n-3) by 14%, vaccenic acid (VA; t11-18:1) by 44%, rumenic acid (RA; c9,t11-18:2) by 40%, and conjugated linolenic acid (CLnA) by 58%. Overall, feeding extruded flaxseed separately from hay in a non-TMR was more effective at enhancing deposition of ALA, VA, RA and CLnA in beef. Crown Copyright © 2017. Published by Elsevier Ltd. All rights reserved.

Sporotrichosis outbreak and mouldy 
hay in NSW.

Science.gov (United States)

Dhingra, Deeksha; Durrheim, David; Porigneaux, Philippe

2015-04-01

Sporotrichosis is a subacute/chronic fungal infection caused by Sporothrix schenckii. The fungus thrives on organic matter including hay, wood, moss, soil and plants. Zoonotic transmission has also been reported. Lesions present as superficial skin nodules that become purulent and ulcerate. Lymphocutaneous spread is common. Haematogenous spread is uncommon and case fatality is rare. The aim of this article is to describe an outbreak of sporotrichosis in New South Wales. A cluster of six cases was identified in the NSW mid-north coast area in the first half of 2013. Telephone interviews were conducted in an attempt to identify possible exposures. General practitioners were contacted to report on patients with chronic non-healing skin lesions. A batch of mouldy hay supplied by a local farmer was identified as the potential source of exposure. Despite effective treatment with oral antifungals, diagnosis of sporotrichosis is often delayed and prolonged courses of antibiotics are unnecessarily prescribed. Timely detection and management (including referral to a dermatologist or infectious diseases specialist) significantly reduces morbidity. Personal protection is the key to prevention.

34 CFR 664.40 - Can participation in a Fulbright-Hays Group Projects Abroad be terminated?

Science.gov (United States)

2010-07-01

... PROJECTS ABROAD PROGRAM What Conditions Must Be Met by a Grantee? § 664.40 Can participation in a Fulbright-Hays Group Projects Abroad be terminated? (a) Participation may be terminated only by the J. William... 34 Education 3 2010-07-01 2010-07-01 false Can participation in a Fulbright-Hays Group Projects...

Informatización de procesos de negocio mediante la ejecución de su modelo gráfico

OpenAIRE

Giráldez Betrón, José Ignacio; Gachet Páez, Diego

2009-01-01

A pesar de que hay mucho margen de eficiencia del que beneficiarse, muchos procesos de negocio no son informatizados por falta de una tecnología que permita hacerlo a bajo coste (especialmente en cuanto a personal cualificado y tiempo). En este artículo, presentamos una tecnología basada en agentes software que proporciona una respuesta parcial a este problema de costes mediante la ejecución de modelos gráficos de procesos de negocio. De tal forma, el secuenciamiento de acciones elementales n...

スペインの移民に対する言語教育

OpenAIRE

江澤, 照美; エザワ, テルミ; Terumi, EZAWA

2006-01-01

Espana ha sido un pais al que han llegado a vivir muchos inmigrantes de diversos paises. Muchos de ellos han venido de Africa, Asia, Europa, los cuales no son nativos del espanol. Y el resto de Latinoamerica. Entre los espanoles hay algunos que no quieren aceptarlos y otros que lo hacen con gusto. Todavia quedan algunos prejuicios discriminatorios sobre los inmigrantes, pero, va a desapareciendo poco a poco el sentimiento malo de los espanoles hacia ellos. El Gobierno se ve obligado a tomar m...

Greenhouse gas fluxes of grazed and hayed wetland catchments in the U.S. Prairie Pothole Ecoregion

Science.gov (United States)

Finocchiaro, Raymond G.; Tangen, Brian A.; Gleason, Robert A.

2014-01-01

Wetland catchments are major ecosystems in the Prairie Pothole Region (PPR) and play an important role in greenhouse gases (GHG) flux. However, there is limited information regarding effects of land-use on GHG fluxes from these wetland systems. We examined the effects of grazing and haying, two common land-use practices in the region, on GHG fluxes from wetland catchments during 2007 and 2008. Fluxes of methane (CH4), nitrous oxide (N2O), and carbon dioxide (CO2), along with soil water content and temperature, were measured along a topographic gradient every other week during the growing season near Ipswich, SD, USA. Closed, opaque chambers were used to measure fluxes of soil and plant respiration from native sod catchments that were grazed or left idle, and from recently restored catchments which were seeded with native plant species; half of these catchments were hayed once during the growing season. Catchments were adjacent to each other and had similar soils, soil nitrogen and organic carbon content, precipitation, and vegetation. When compared with idle catchments, grazing as a land-use had little effect on GHG fluxes. Likewise, haying had little effect on fluxes of CH4 and N2O compared with non-hayed catchments. Haying, however, did have a significant effect on combined soil and vegetative CO2 flux in restored wetland catchments owing to the immediate and comprehensive effect haying has on plant productivity. This study also examined soil conditions that affect GHG fluxes and provides cumulative annual estimates of GHG fluxes from wetland catchment in the PPR.

Game and Digital Culture: A Study on Hay Day Game

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Mia Angeline

2016-01-01

Full Text Available Digital games are a commercial product developed and distributed by media companies and often uses characters or scenarios of movies, books, and comics. The digital game play comes from individual media consumption patterns. Playing digital games also offer experience and satisfaction based on interactive communication technologies and immersive gameplay. In this digital age, digital games became more social-based, which means they implement the need to invite friends on social media to come into play and help each other in the game. The problems of this study was to determine what factors make Hay Day popular among the players and to find out how Hay Day changing the social patterns interaction of the players. This study aims to look at the functions of digital games in the context of communication with relations in social media and why certain games can achieve very high popularity, while other games failed miserably. This research focuses on Hay Day. The method used is descriptive qualitative approach with case study method. Data collection is using interviews with players active in the game, as well as observation and literature studies. The results showed that a game may gain popularity if someone has a social media environment prior to play. Interactive concept, simulation, and fantasy game technology are also the reason Hay Day became very popular. The perception that the digital game player who formerly regarded as anti-social experience has shifted in the concept of digital game-based social bookmark. Players who have a lot of friends in games are seen as someone who has a lot of friends and a high social level. This is in line with the functions of a traditional game in Indonesian culture, where the region has a wide variety of games to be played together and motivate positive social interaction. Function of digital games also increased, other than playing the game as entertainment, but also now the game became one of the effective

Feeding behavior of lambs fed with diets containing mulberry hay

Directory of Open Access Journals (Sweden)

Luís Gabriel Alves Cirne

2014-02-01

Full Text Available The experiment was conducted to evaluate the feeding behavior of lambs fed with diets containing 0, 12.5 and 25.0% of mulberry hay as a substitute for the concentrate. Twenty four Ile de France lambs, non castrated, with 25 kg of body weight and four months old, confined, in a completely randomized design, were used. The feeding daily time (242.01 minutes, rumination (435.48 minutes and leisure (762.50 minutes, the numbers of cakes ruminated per day (658.36 and the time spent per cake (40.03 sec were not affected (P>0.05 by different levels of hay in mulberry concentrate. The dry matter voluntary intake (1.258 kg/day and neutral detergent fiber intake (0.302 kg/day, as well as the efficiency of dry matter intake and rumination (316.24 and 173.54 g/h, respectively and efficiency of neutral detergent fiber intake and rumination (75.89 and 41.68 g/h, respectively were similar in all treatments. The ruminating chew expressed in hour/day (11.29 and the number of chews expressed per cake (72.65 and per day (47.638.06, as well as the number and the feeding time (22.02 meals and 11.23 min/meal, rumination (25.95 ruminations and 17.29 min/rumination and idle (41.81 idle and 18.30 min/idle time, were also not affected (P>0.05. The inclusion of mulberry hay did not change the rumination expressed in g of DM and NDF/cake (1.91 and 0.46, respectively and min/kg of DM and NDF (361.51 and 1.505.78, respectively, as well as the total chew expressed in min/kg of DM and NDF (563.70 and 2.347.19, respectively. The use of mulberry hay partially replacing the concentrated, does not change the feeding behavior of feedlot lambs.

The combined effects of family size and farm exposure on childhood hay fever and atopy.

Science.gov (United States)

Genuneit, Jon; Strachan, David P; Büchele, Gisela; Weber, Juliane; Loss, Georg; Sozanska, Barbara; Boznanski, Andrzej; Horak, Elisabeth; Heederik, Dick; Braun-Fahrländer, Charlotte; von Mutius, Erika

2013-05-01

Exposure to farming environments and siblings is associated with reduced risks of childhood hay fever and atopy. We explored the independence and interaction of these protective effects in the GABRIELA study. Questionnaire surveys on farming, asthma, and allergies were conducted in four central European areas among 79,888 6-12-yr-old children. Aeroallergen-specific serum IgE was measured in a stratified sample of 8,023 children. Multiple logistic regression was used to compare gradients in allergy prevalence by sibship size across three categories of exposure to farming environments. The prevalence of hay fever ranged from 2% (95% confidence interval 1.6%; 2.7%) among farmers' children with more than two siblings to 12% (11.2%; 13.0%) among children with no farm exposure and no siblings. Farming families were larger on average. More siblings and exposure to farming environments independently conferred protection from hay fever and atopy. There was no substantial effect modification between family size and exposure to farming environments. The odds ratios for hay fever per additional sibling were 0.79 among unexposed non-farm children, 0.77 among farm-exposed non-farm children, and 0.72 among children from farming families (2df interaction test: p = 0.41). The inverse association of exposure to farming environments with hay fever is found in all sizes of family, with no substantial tendency to saturation or synergism. This suggests that different biological mechanisms may underlie these two protective factors. Combinations of a large family and exposure to farming environments markedly reduce the prevalence of hay fever and indicate the strength of its environmental determinants. © 2013 John Wiley & Sons A/S. Published by Blackwell Publishing Ltd.

PENGARUH CARA PENGAWETAN TERHADAP KOMPOSISI KIMIA DAN EFISIENSI DALAM BENTUK HAY DAN SILASE PADA DAUN 16 PROVENAN GAMAL (GLIRICIDIA SEPIUM

Directory of Open Access Journals (Sweden)

A. W. Puger

2012-09-01

Full Text Available RINGKASAN Percobaan yang bertujuan untuk mengetahui pengaruh cara pengawetan terhadap kandungan zat-zat makanan dan efisiensinya pada daun 16 provenan gamal telah dilaksanakan selama 3 bulan. Penelitian menggunakan rancangan acak lengkap yang terdiri atas 3 perlakuan pengawetan (gamal segar, gamal hay, dan gamal silase dan 3 blok sebagai ulangan. Setiap perlakuan terdiri atas 16 provenan, yaitu 6 dari Mexico (M, 4 dari Guatemala (G, dan satu provenan masing-masing dari Colombia (C, Indonesia (I, Nicaragua (N, Panama (P, Costa Rica (R, dan Venezuela (V. Sampel setiap daun (helai dan tangkai provenan sebelum dan setelah diawetkan dianalisis kandungan zat-zat makanannya dan dihitung efisiensinya setelah dibuat hay dan silase. Kandungan DM dan CP dari hay adalah tertinggi (P0,05 setelah diawetkan menjadi hay dan silase, sedangkan efisiensi DM, OM, dan CP dari hay lebih tinggi (P<0,05 daripada silase. Provenan P13, R12, dan M34 mengandung zat-zat makanan lebih tinggi; sementara provenan G14 dan G17 lebih efisien bila diawetkan dalam bentuk hay dan silase. Pada pertanian lahan kering pengawetan gamal dalam bentuk hay lebih efektif dan efisien jika dibandingkan dengan dalam bentuk silase.

Weaned beef calves fed selenium-biofortified alfalfa hay have an enriched nasal microbiota compared with healthy controls.

Science.gov (United States)

Hall, Jean A; Isaiah, Anitha; Estill, Charles T; Pirelli, Gene J; Suchodolski, Jan S

2017-01-01

Selenium (Se) is an essential trace mineral important for immune function and overall health of cattle. The nasopharyngeal microbiota in cattle plays an important role in overall respiratory health, especially when stresses associated with weaning, transport, and adaptation to a feedlot affect the normal respiratory defenses. Recent evidence suggests that cattle diagnosed with bovine respiratory disease complex have significantly less bacterial diversity. The objective of this study was to determine whether feeding weaned beef calves Se-enriched alfalfa (Medicago sativa) hay for 9 weeks in a preconditioning program prior to entering the feedlot alters nasal microbiota. Recently weaned beef calves (n = 45) were blocked by sex and body weight, randomly assigned to 3 treatment groups with 3 pens of 5 calves per treatment group, and fed an alfalfa hay based diet for 9 weeks. Alfalfa hay was harvested from fields fertilized with sodium selenate at a rate of 0, 45.0 or 89.9 g Se/ha. Blood samples were collected biweekly and analyzed for whole-blood Se concentrations. Nasal swabs were collected during week 9 from one or two calves from each pen (total n = 16). Calculated Se intake from dietary sources was 3.0, 15.6, and 32.2 mg Se/head/day for calves consuming alfalfa hay with Se concentrations of 0.34 to 2.42 and 5.17 mg Se/kg dry matter, respectively. Whole-blood Se concentrations after 8 weeks of feeding Se-fertilized alfalfa hay were dependent upon Se-application rates (0, 45.0, or 89.9 g Se/ha) and were 155, 345, and 504 ng/mL (PLinear Microbial DNA was extracted from nasal swabs and amplified and sequenced. Alpha rarefaction curves comparing the species richness (observed OTUs) and overall diversity (Chao1, Observed OTU, and Shannon index) between calves fed selenium-biofortified alfalfa hay compared with control calves showed that Se-supplementation tended to be associated with an enriched nasal microbiota. ANOSIM of unweighted UniFrac distances showed that calves

Weaned beef calves fed selenium-biofortified alfalfa hay have an enriched nasal microbiota compared with healthy controls

Science.gov (United States)

Hall, Jean A.; Isaiah, Anitha; Estill, Charles T.; Pirelli, Gene J.; Suchodolski, Jan S.

2017-01-01

Selenium (Se) is an essential trace mineral important for immune function and overall health of cattle. The nasopharyngeal microbiota in cattle plays an important role in overall respiratory health, especially when stresses associated with weaning, transport, and adaptation to a feedlot affect the normal respiratory defenses. Recent evidence suggests that cattle diagnosed with bovine respiratory disease complex have significantly less bacterial diversity. The objective of this study was to determine whether feeding weaned beef calves Se-enriched alfalfa (Medicago sativa) hay for 9 weeks in a preconditioning program prior to entering the feedlot alters nasal microbiota. Recently weaned beef calves (n = 45) were blocked by sex and body weight, randomly assigned to 3 treatment groups with 3 pens of 5 calves per treatment group, and fed an alfalfa hay based diet for 9 weeks. Alfalfa hay was harvested from fields fertilized with sodium selenate at a rate of 0, 45.0 or 89.9 g Se/ha. Blood samples were collected biweekly and analyzed for whole-blood Se concentrations. Nasal swabs were collected during week 9 from one or two calves from each pen (total n = 16). Calculated Se intake from dietary sources was 3.0, 15.6, and 32.2 mg Se/head/day for calves consuming alfalfa hay with Se concentrations of 0.34 to 2.42 and 5.17 mg Se/kg dry matter, respectively. Whole-blood Se concentrations after 8 weeks of feeding Se-fertilized alfalfa hay were dependent upon Se-application rates (0, 45.0, or 89.9 g Se/ha) and were 155, 345, and 504 ng/mL (PLinear calves fed selenium-biofortified alfalfa hay compared with control calves showed that Se-supplementation tended to be associated with an enriched nasal microbiota. ANOSIM of unweighted UniFrac distances showed that calves fed high Se-biofortified alfalfa hay clustered separately when compared with control calves in the PCoA plot (R = 0.216, P = 0.04). The bacterial orders Lactobacillales and Flavobacteriales were increased in healthy

The effect of five different wetting treatments on the nutrient content and microbial concentration in hay for horses.

Directory of Open Access Journals (Sweden)

Meriel Jean Scott Moore-Colyer

Full Text Available Five different hays were used to determine the effect of 5 different soaking and steaming treatments on the water soluble carbohydrate and microbial (bacteria and mould contents of UK hay. Hays were subjected to the following 5 treatments: 1. Dry; 2. Steamed for 50 minutes in the Haygain- 600 steamer; 3. Soaked in water at 16°C for 9 hours; 4. Steamed then soaked and 5. Soaked then steamed. Post treatment hays were tested for water soluble carbohydrates, bacteria and mould contents. Differences between means were determined using ANOVA and least significant difference with hay (5, bale (3 and treatment (5 as fixed factors, thus n = 75. Protein and ash proportions were unaltered in any of the treatments. Soaked, steamed then soaked and soaked then steamed treatments were all equally effective at reducing water soluble carbohydrates, with significantly (P<0.05 lower mean contents (79-83 g/kg DM compared with 126 and 122 g/kg dry matter (DM for dry and steamed respectively. Steamed and soaked then steamed had significantly (P<0.05 less bacteria (1.04×103 and 4.9×102 CFU/g DM compared with soaked which increased CFU/g DM from 6.0×104 in dry hay up to 3.5×105. Mould contents CFU/g DM were significantly (P<0.05 reduced by steaming (2 and soaking then steaming (1.9 but no difference was seen between dry (1148, soaked (692 or steamed then soaked (501. Soaking for 9 hours followed by steaming for 50 minutes in the Haygain steamer was the most effective method for reducing water soluble carbohydrates and microbial contamination in hay. Soaking or steaming+soaking lowered water soluble carbohydrates but significantly reduced the hygienic quality of the hay which could potentially compromise the health of the horse.

La organización de eventos como estrategia identitaria y evocadora de imagen turística. Estudio de caso: Girona Temps de Flors

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Mònika Jiménez Morales

2009-01-01

Full Text Available Desde hace 53 años la ciudad de Girona organiza un evento multitudinario basado en el arte floral que, en sus últimas ediciones, ha llegado a movilizar a más de medio millón de visitantes, muchos de ellos llegados de todas partes de Europa. Más allá de las flores, las exposiciones fotográficas o los montajes audiovisuales que llenan las calles del casco antiguo del municipio durante la segunda semana del mes de mayo, lo cierto es que Girona Temps de Flors representa la puesta en escena de una estrategia comunicativa emergente en el ámbito de la promoción del territorio. En efecto, el evento desempeña, per se, variadas funciones en el ámbito emocional del espacio vivido, pero hay más. También puede devenir a modo de catalizador de imágenes, de creador de imaginarios capaces de fijar una marca de ciudad en su conjunto. El presente artículo dará a conocer las posibilidades que se desprenden de la organización de un evento en relación al posicionamiento identitario y de marca de un territorio.

El deseo y el decoro en la novela colombiana del siglo XX

Directory of Open Access Journals (Sweden)

José Eduardo Jaramillo Zuluaga

1992-05-01

Full Text Available Hay una historia de siempre, la historia del cuerpo, de su aventura y desventura, que nuestros escritores han narrado a lo largo de la vida nacional empleando palabras distintas y de muy distintas maneras. La historia que me corresponde narrar es la historia de esas palabras. Es una historia modesta, como todas las que se escriben en la pos modernidad. Es también una historia que no habría sido posible sin la atmósfera triste y extraordinaria que respiramos desde hace ya muchos años. En efecto, acertaríamos parcialmente si atribuyéramos a la influencia de la literatura europea la aparición del cuerpo erótico en nuestra narrativa. Sólo en el momento en que se documenta la violencia en las páginas de la novela, el cuerpo aparece de un modo más explícito; se debilitan entonces las restricciones del decoro que todo lo enmudecía y se impone al escritor la necesidad de buscar las palabras que describen lo que le sucede al cuerpo, su abertura y su fragilidad.

Effects of phenolic acid structures on meadow hay digestibility

NARCIS (Netherlands)

Rodrigues, M.A.M.; Guedes, C.M.; Cone, J.W.; Gelder, van A.H.; Ferreira, L.M.M.; Sequeira, C.A.

2007-01-01

The objectives were to evaluate effects of phenolic acid content and composition on the digestibility of six meadow hays from Northern Portugal. Digestibility was assessed by gas production, in vitro and in situ degradation methods. Four cows fed diets at energy maintenance were used for in situ

The nutritional value of peanut hay (Arachis hypogaea L.) as an alternate forage source for sheep

NARCIS (Netherlands)

Khan, M.T.; Khan, N.A.; Bezabih, M.; Qureshi, M.S.; Rahman, A.

2013-01-01

The aim of this study was to evaluate the nutritional and feeding value of peanut hay (Arachis hypogaea L.) produced under tropical environment as an alternate forage resource for sheep. Peanut hay was appreciably high in crude protein [CP; 105 g/kg dry matter (DM)] and lower in neutral detergent

Weaned beef calves fed selenium-biofortified alfalfa hay have an enriched nasal microbiota compared with healthy controls.

Directory of Open Access Journals (Sweden)

Jean A Hall

Full Text Available Selenium (Se is an essential trace mineral important for immune function and overall health of cattle. The nasopharyngeal microbiota in cattle plays an important role in overall respiratory health, especially when stresses associated with weaning, transport, and adaptation to a feedlot affect the normal respiratory defenses. Recent evidence suggests that cattle diagnosed with bovine respiratory disease complex have significantly less bacterial diversity. The objective of this study was to determine whether feeding weaned beef calves Se-enriched alfalfa (Medicago sativa hay for 9 weeks in a preconditioning program prior to entering the feedlot alters nasal microbiota. Recently weaned beef calves (n = 45 were blocked by sex and body weight, randomly assigned to 3 treatment groups with 3 pens of 5 calves per treatment group, and fed an alfalfa hay based diet for 9 weeks. Alfalfa hay was harvested from fields fertilized with sodium selenate at a rate of 0, 45.0 or 89.9 g Se/ha. Blood samples were collected biweekly and analyzed for whole-blood Se concentrations. Nasal swabs were collected during week 9 from one or two calves from each pen (total n = 16. Calculated Se intake from dietary sources was 3.0, 15.6, and 32.2 mg Se/head/day for calves consuming alfalfa hay with Se concentrations of 0.34 to 2.42 and 5.17 mg Se/kg dry matter, respectively. Whole-blood Se concentrations after 8 weeks of feeding Se-fertilized alfalfa hay were dependent upon Se-application rates (0, 45.0, or 89.9 g Se/ha and were 155, 345, and 504 ng/mL (PLinear < 0.0001. Microbial DNA was extracted from nasal swabs and amplified and sequenced. Alpha rarefaction curves comparing the species richness (observed OTUs and overall diversity (Chao1, Observed OTU, and Shannon index between calves fed selenium-biofortified alfalfa hay compared with control calves showed that Se-supplementation tended to be associated with an enriched nasal microbiota. ANOSIM of unweighted Uni

La relatividad de las estrategias lingüísticas: repensando el poder y la solidaridad en el género y en la dominación

OpenAIRE

Tannen, Deborah

2008-01-01

"Al analizar el discurso, muchos investigadores funcionan bajo la presuposición no formulada de que todos los hablantes proceden siguiendo líneas similares de interpretación, de modo que un ejemplo particular de discurso puede ser tomado para representar cómo funciona el discurso para todos los hablantes. Para algunos aspectos del discurso, sin duda esto es cierto. Sin embargo, un amplio cuerpo de literatura sociolingüística muestra claramente que, para muchos aspectos del discurso, esto es c...

Taller sobre el color y su medición

OpenAIRE

Alonso Felipe, Jose Vicente

2016-01-01

El color y su medición siempre han despertado la curiosidad del ser humano y han ido adquiriendo importancia significativa desde hace mucho tiempo como consecuencia del desarrollo industrial, tanto desde el punto de vista de la física del color como desde la psicología del color. Son muchos los sectores industriales donde su cuantificación y control son de importancia significativa, no hay nada más que pensar en el campo de la automoción, textil, industria del plástico, industria de pintur...

Hay intake improves performance and rumen development of calves fed higher quantities of milk.

Science.gov (United States)

Khan, M A; Weary, D M; von Keyserlingk, M A G

2011-07-01

Research to date has suggested that access to forage before weaning can limit rumen development in calves, but no research has yet addressed the role of forage for calves fed higher quantities of milk. This study compared performance and rumen development of calves provided high volumes (equivalent to approximately 20% of calf birth weight) of milk with and without access to hay. At d 3 of age, individually housed calves were randomly assigned to treatment (either ad libitum access to chopped grass hay or no forage; n=15 calves per treatment, 10 heifers, and 5 bulls). All calves were provided ad libitum access to water and starter throughout the study. All calves were offered 8L of milk/d from a nipple bottle from d 3 to 35, 4 L/d from d 36 to 53, and 2L/d until weaning at d 56. Solid feed intake and growth parameters were monitored from d 3 to 70. At d 70, males from both treatments were slaughtered to measure rumen development parameters. Overall dry matter (DM) intake from solid feed did not differ between treatments before wk 5. However, during wk 6 to 10, calves fed forage consumed more total DM (starter plus hay) than did calves fed no forage. Hip and wither height, heart girth, and body barrel at d 3, 56, and 70 did not differ between treatments. Reticulorumen weight was heavier in calves fed hay versus those fed only starter (12.77±1.29 vs. 7.99±0.69 kg with digesta; 1.89±0.05 vs.1.60±0.09 kg without digesta). Body weight without digesta was similar in calves fed forage or no forage. Mean rumen pH was higher in calves fed hay compared with those fed no forage (5.49±0.08 vs. 5.06±0.04). In conclusion, provision of chopped hay to calves fed high volumes of milk can promote solid feed DM intake and rumen development without affecting BW gain. Copyright © 2011 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.

Similarity, Induction, Naming, and Categorization (SINC): Generalization or Inductive Reasoning? Reply to Heit and Hayes (2005)

Science.gov (United States)

Sloutsky, Vladimir M.; Fisher, Anna V.

2006-01-01

This article is a response to E. Heit and B. K. Hayes's comment on the target article "Induction and Categorization in Young Children: A Similarity-Based Model" (V. M. Sloutsky & A. V. Fisher, 2004a). The response discusses points of agreement and disagreement with Heit and Hayes; phenomena predicted by similarity, induction, naming, and…

Fulbright-Hays Seminars Abroad Program: Malaysia 1995. Participants' Reports.

Science.gov (United States)

Malaysian-American Commission on Educational Exchange, Kuala Lumpur.

These reports and lesson plans were developed by teachers and coordinators who traveled to Malaysia during the summer of 1995 as part of the U.S. Department of Education's Fulbright-Hays Seminars Abroad Program. Sections of the report include: (1) "Gender and Economics: Malaysia" (Mary C. Furlong); (2) "Malaysia: An Integrated,…

Electromyographic evaluation of masseter muscle activity in horses fed (i) different types of roughage and (ii) maize after different hay allocations.

Science.gov (United States)

Vervuert, I; Brüssow, N; Bochnia, M; Cuddeford, D; Coenen, M

2013-06-01

The aims of this study were to monitor electromyographic (EMG) activity of masseter muscle in healthy horses fed (i) different types of roughage and (ii) maize after different hay allocations. Four horses were offered the following three diets ad libitum: hay, haylage or straw/alfalfa chaff (SAC). In a second trial, four horses were fed cracked maize (CM) and hay in three different orders: (i) CM after a 12-h overnight fast; (ii) CM immediately after restricted hay intake (0.6 kg hay/100 kg BW); or 3) CM after hay intake ad libitum. The activity of the masseter muscle was determined by EMG (IED(®) ), and the following were measured: amplitude (muscle action potential = MAP, maximum voltage) and duration of MAP (s). The intake of hay or haylage was associated with intense masseter muscle activity (MAP: hay, 10 ± 1.7 V; haylage, 11 ± 3.3 V; and duration of MAP: hay, 0.31 ± 0.04 s; haylage, 0.30 ± 0.04 s). Similar intense chewing was measured for SAC (MAP 13 ± 3.8 V), although duration of the chewing cycle was relatively short (0.22 ± 0.03 s, diet p haylage or SAC was associated with intensive masseter muscle activity that was likely to stimulate salivary flow rate. In contrast to roughage, concentrates like CM are consumed rapidly with less intensive masseter muscle activity. This situation is associated with a low salivary flow that may have an adverse effect on gastric function. © 2012 Blackwell Verlag GmbH.

The Glaser–Hay reaction

DEFF Research Database (Denmark)

Vilhelmsen, Mie Højer; Jensen, Jonas; Tortzen, Christian

2013-01-01

The oxidative Glaser–Hay coupling of two terminal alkynes to furnish a butadiyne is a key reaction for acetylenic scaffolding. Although the reaction is performed under rather simple conditions [CuCl/TMEDA/O2 (air)], the mechanism is still under debate. Herein we present detailed studies...... on the scope of this reaction by using both 13C NMR and UV/Vis spectroscopic methods. The former method was used to study the kinetics of the coupling of aryl-substituted alkynes as the aryl carbon resonances of the reactants and products have similar NOEs and relaxation times. The reaction was found...... to be zero-order with respect to the terminal alkyne reactant under standard preparative conditions. Moreover, as the reaction proceeded, a clear change to slower reaction kinetics was observed, but it was still apparently zero-order. The onset of this change was found to depend on the catalyst loading...

Mineral content of hay harvested in Bavarian and Swiss horse farms. Predictive value of cutting time, number of cut, botanical composition, origin and fertilization.

Science.gov (United States)

Kienzle, E; Möllmann, F; Nater, S; Wanner, M; Wichert, B

2008-12-01

Hay samples from 29 horse farms in Southern Upper Bavaria and 31 horse farms in Switzerland were taken and analysed for minerals such as calcium, magnesium, phosphorus and potassium. The content of herbs and legumes in the hay was determined and the Weende analysis was performed. Comparison between Bavaria and Switzerland resulted in comparable calcium contents of approximately 4 g Ca/kg dry matter (DM) in grass hay. Hay with more than 10% of herbs and legumes found only in Switzerland showed higher Ca contents of >7 g Ca/kg DM in hay. The mineral contents of phosphorus and potassium were lower in hay from Switzerland (P: 1.8 +/- 0.7 g/kg DM, K: 15.4 +/- 5.1 g/kg DM) than from Bavaria (P: 3.8 +/- 0.6 g/kg DM, K: 20.0 +/- 6.0 DM), whereas the magnesium content of the hay showed no difference between the regions ( approximately 1.5 g Mg/kg DM). Very late first grass hay cuts showed low magnesium and calcium (<4 g/kg DM) contents. Further minerals in the hay for horses differed from those in dairy cattle in the same region. Fertilization showed only small effects on the mineral contents of the hay produced for horses. Therefore, in calculation of ration and production of supplements for horses, these differences should be taken into account.

An Investigation of Hayes and Wheelwright’s Practices: Empirical Evidence from The Indonesia’s Oil and Gas Industry

Directory of Open Access Journals (Sweden)

Wakhid Slamet Ciptono

2009-05-01

Full Text Available The research extracts sixty seven Hayes and Wheelwright’s practices from the Hayes and Wheel-wright’s six principles. These items formed the basis of a questionnaire sent to over 2800 managers at the SBUs level in the Indonesia’s oil and gas companies. The empirical result indicates that All Hayes and Wheelwright’s six principles collectively have positive impact on an overall construct that may be termed world-class company (WCC. Result also points out that Hayes and Wheelwright’s six principles can be reduced into four meaningful factors of world-class company—as operations strategies—for the Indonesia’s oil and gas industry— Workforce skills and capabilities, Management technical competence, Competing through quality, and Workforce participation. These meaningful factors of WCC were shown to be reliable and valid, and offer new insights into the understanding of operations strategy implementation in an oil and gas industry.Based on the oil and gas managers (the SBU level, operations strategies (four meaningful factors of WCC can be viewed as the effective use of production and operations capability and technology for achieving business and corporate goals. Operations strategy, therefore, is to help a company’s operations organization define the common ground where it can play a proactive and collaborative role with other company functions or cross-functional relationships (Hayes et al., 1996.  Oil and gas managers in Indonesia can use these meaningful factors in concert with other critical qual-ity management practices to help them in there word-class company initiatives. Researchers can also use these factors to build structural model linking such factors to various organizational performance measures (i.e., Critical Success Factors of TQM, Operational Excellence, Six Sigma Quality Management, and Good Corporate Governance.Keywords: Hayes and wheelwright’s six principles, Hayes and Wheelwright practices, World

Atlas de aves: Un metodo para documentar distribucion y seguir poblaciones

Science.gov (United States)

Robbins, C.S.; Dowell, B.A.; Dawson, D.K.; Alvarez-Lopez, Humberto; Kattan, Gustavo; Murcia, Carolina

1988-01-01

Los Atlas de Aves son proyectos nacionales o regionalies para trazar en mapas la distribucion en reproduccion de cada especie de ave. Ese procedimiento se esta usando en Europa, Australia, Nueva Zelanda, Norteamerica, y partes de Africa. El tama?o de los cuadrados varia de medio grado de latitud y Iongitud hasta 5 x 5 km. El trabajo de campo de cada proyecto exige aproxlmadamente cinco a?os, pero los aficionados pueden llevar a cabo la mayor parte del trabajo. Es posible almacenar los resultados en un computador personal. Hay muchos beneficios: (I) se presenta la distribucion corriente de las aves de la nacion, del estado, o de la Iocalidad; (2) se desarrolla nueva informacion especialmente sobre especies raras o en peligro; (3) se descubren areas que tienen una avlfauna sobresaliente o habitats raros y ayuda a su proteccion, (4) se documentan cambios de dlstribucion; (5) se pueden usar para documentar cambios de poblacion, especialmente en los tropicos donde otros metodos son mas dificiles de usar porque hay muchas especies y no hay muchos observadores calificados en la identificacion de sonidos de las aves; (6) son proyectos buenos de investigacion para estudiantes graduados; (7) los turistas y los jefes de excursiones de historia natural pueden contribuir con muchas informaciones

Jogo das perguntas: o modo operativo "AND" e o viver juntos sem ideias

Directory of Open Access Journals (Sweden)

Fernanda Eugenio

2013-08-01

Full Text Available O jogo das perguntas "como viver juntos?" e "como não ter uma ideia?" compõe o Modo Operativo AND, sistema que emergiu da contaminação recíproca entre a Composição em Tempo Real e a Etnografia como Performance Situada. No plano "como viver juntos?", o jogo tem o ritmo da improvisação coletiva em tempo real - podendo ser jogado no interior de qualquer acontecimento quotidiano ou ser praticado de modo laboratorial. No plano "como não ter uma ideia?", o jogo assume o ritmo da investigação solitária e a temporalidade da depuração: é o jogo que jogamos ao executar uma tarefa ou criar uma obra, em qualquer área de atuação.

Comparison of silage and hay of dwarf Napier grass (Pennisetum purpureum) fed to Thai native beef bulls.

Science.gov (United States)

Mapato, Chaowarit; Wanapat, Metha

2018-03-23

Both quantity and quality of forages are important in dry season feeding. Eight Thai native beef bulls were arranged in a Completely randomized design to evaluate dwarf Napier namely Sweet grass (Pennisetum purpureum cv. Mahasarakham) preserved as silage or hay on feed intake, digestibility, and rumen fermentation. The animals were fed with forage ad libitum supplemented with concentrate mixture at 1.0% of BW for 21 days; data were collected during the last 7 days. The results showed that there were differences (P  0.05) in animals fed silage and hay. Sweet grass is better preserved as hay rather than silage.

Modo de produzir - Modo de trabalhar : relações de produção e trabalho no cinema da Boca do Lixo

OpenAIRE

Ricardo Normanha Ribeiro de Almeida

2012-01-01

Resumo: O objetivo central deste trabalho é analisar a relação entre o modo de produção cinematográfica do ciclo Boca do Lixo, em São Paulo, e as condições e relações de trabalho dos profissionais envolvidos nestas produções. O ciclo Boca do Lixo se desenvolve por volta das décadas de 1970 e 1980 e caracteriza-se por algumas especificidades em seu esquema de produção, a começar pela ausência de financiamento estatal e pela parceria estabelecida entre produtores e exibidores. Concentrados nas ...

Supplementary feeding of roe deer (Capreolus capreolus L with late harvested hay. A pilot study

Directory of Open Access Journals (Sweden)

C. Rehbinder

1985-05-01

Full Text Available In order to increase the fodder available for roedeer during wintertime, late harvested hay was placed on racks early in November in three consecutive years. Freeezing kept the hay dry and fresh during all three winters. In the first winter, with much snow, the bulk of the hay was consumed whereas consumption in the two subsequent mild winters was low and selective. The crude protein content of the hay was low (3.5 - 8.4% dry matter. Metabolizable energy estimated from digestion in vitro was 3.5 — 5.6 MJ per kg dry matter. Rumen liquor from roe deer during a mild winter gave lower in vitro digestion than liquor from sheep fed with ordinary rations. The value of this poor hay for roe deer is discussed with respect to the animals requirements, seasonal adaption, the energy and protein content of the hay, water consumption and normal behavior. The results indicate that late harvested hay may be more suitable than regularly harvested hay or concentrates to help roe deer to survive spells of severe winter conditions. With late harvested hay placed out at several localized feeding sites, the risks of indigestion and dehydration, associated with a more concentrated, feed, are minimized and the ranking among the roe deer in particular will be less important and thus more animals will have improved prospects of gaining access to the fodder.Tilskottsutfodring av rådjur (Capreolus capreolus L med sent skordat ho. En pilotstudie.Abstract in Swedish / Sammanfattning: I avsikt att, for rådjur, oka mångden tillgångligt foder under vintertid, skordades och håssjades ho i borjan av november under tre på varandra foljande år. Hoet fros torn och holl sig fårskt alla vintrarna. Forstå vintern med mycket sno konsumerades huvuddelen av hoet medan de två foljande milda vintrarna konsumptionen var låg och selektiv. Mångden råprotein i hoet var lågt (3.5 — 8.4 % i torrsubstans. Innehållet av omsåttbar energi beråknad från digestion in vitro var 3

Religious Literacy or Spiritual Awareness? Comparative Critique of Andrew Wright's and David Hay's Approaches to Spiritual Education

Science.gov (United States)

Filipsone, Anta

2009-01-01

On the basis of a comparison of the educational approaches of Andrew Wright and David Hay this paper illustrates the persisting problem of dichotomising cognitive and trans-cognitive aspects of spiritual development and education. Even though both Wright and Hay speak of the same topic--spirituality and spiritual education--they define these terms…

Modos de vida alternativos: o caso da comunidade Noiva do Cordeiro

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Adilson Schultz

2011-04-01

Full Text Available Noiva do cordeiro é uma comunidade rural liderada por mulheres, que desenvolveu um modo de vida alternativo e sustentável, com partilha de bens e fim da religião institucionalizada. Forjado ao longo de mais de um século, num processo de constantes rupturas religiosas, familiares e ideológicas, esse inusitado modo de vida produziu uma comunidade autônoma, com sujeitos autônomos e responsáveis uns pelos outros, que se tornaram lideranças sociais e políticas. No centro de sua história, experiências de sofrimento e rupturas relacionadas à religião, à fome, e à estrutura familiar patriarcal. O estudo do caso de Noiva do Cordeiro tem a intenção de analisar elementos subjetivos deste processo, verificando os indicativos e as implicações de tal fenômeno religioso e social, especialmente os limites e o fim de determinado modelo de religião. Os pressupostos teóricos deste estudo apontam para uma perspectiva transdisciplinar que compreende a teologia, a sociologia e a psicologia da religião e, nestes campos, as teorias feministas.

Modos de condução da entrevista em pesquisa fenomenológica: relato de experiência

Directory of Open Access Journals (Sweden)

Cristiane Cardoso de Paula

2014-06-01

Full Text Available O objetivo deste artigo é relatar a experiência dos modos de condução da entrevista na produção de dados em pesquisa fenomenológica. O estudo proposto trata de um relato de experiência de uma investigação fenomenológica na qual as pesquisadoras apresentam sua experiência com crianças, tendo como suporte a entrevista como encontro existencial. Para tanto, descrevem-se os modos de condução da entrevista em suas dimensões ôntica e ontológica. A ôntica se refere aos fatos relacionados à entrevista, presentes no pesquisador, no sujeito pesquisado e no ambiente, tanto no seu planejamento quanto no seu desenvolvimento. A ontológica é fundada na empatia e intersubjetividade. A entrevista possibilita o acesso a estruturas significantes para a compreensão do ser, de modo a construir possibilidades investigativas / assistenciais que permitam desvelar o ser do humano.

A model for assessing Medicago Sativa L. hay quality | Scholtz ...

African Journals Online (AJOL)

A study was conducted to identify chemical parameters and/or models for assessing. Medicago sativa L. (L) hay quality, using near infrared reflectance spectroscopy (NIRS) analysis and Cornell Net Carbohydrate and Protein System (CNCPS) milk prediction as a criterion of accuracy. Milk yield (MY) derived from the ...

Mental health associations with eczema, asthma and hay fever in children:a cross-sectional survey

OpenAIRE

Hammer-Helmich, Lene; Linneberg, Allan; Obel, Carsten; Thomsen, Simon Francis; Tang Møllehave, Line; Glümer, Charlotte

2016-01-01

Objective This study aimed to examine the association of eczema, asthma and hay fever with mental health in a general child population and to assess the influence of parental socioeconomic position on these associations. Methods We conducted a cross-sectional health survey of children aged 3, 6, 11 and 15?years in the City of Copenhagen, Denmark. Individual questionnaire data on eczema, asthma, and hay fever and mental health problems assessed using the Strengths and Difficulties Questionnair...

Report on intercomparison IAEA/V-10 of the determination of trace elements in hay powder

International Nuclear Information System (INIS)

Pszonicki, L.; Hanna, A.N.

1985-07-01

Hay plays an important role in the natural production circle of human nutrition. The level of its pollution is an important factor which can effect various branches of the food industry. The aim of the reported exercise organized by the IAEA was to provide the participating laboratories an opportunity to check their analytical performance by comparing their results with the results of other laboratories and to establish the concentration level of trace elements for certification purposes. The hay powder was analyzed by 50 laboratories from 25 countries for 42 elements. Neutron activation, atomic absorption, atomic emission and X-ray spectroscopy were predominantly used as analytical methods. The results provided by the participants of the reported intercomparison exercise have enabled to certify the concentration of eighteen trace and minor elements and to establish non-certified information values for the concentration of an additional twelve elements in Hay Powder IAEA/V-10

Controlador en Modo Deslizante para Sistemas Fotovoltaicos Conectados a la Red Eléctrica

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D. Arcos

2012-11-01

Full Text Available Se describe el análisis, modelamiento y diseño de un lazo de control para sistemas fotovoltaicos (PV conectados a la red eléctrica. Se aborda el modelado de un panel fotovoltaico; el diseño de un convertidor elevador (Boost y su lazo de control mediante un controlador proporcional-integral PI de corriente y un controlador en modo deslizante; y finalmente el diseño de un inversor DC-AC de una fase. Se realiza una descripción de la dinámica del convertidor Boost y de las ecuaciones para el diseño del controlador en modo deslizante y del inversor de una sola fase. El sistema propuesto ha sido simulado utilizando las herramientas de la librería SimPowerSystems de Matlab/Simulink.

Modos em vigas com secção transversal de variação linear

OpenAIRE

Jovita Rasch Bracht Juver

2002-01-01

O objetivo principal deste trabalho é a obtenção dos modos e as freqüências naturais de vigas de variação linear e em forma de cunha, com condições de contorno clássicas e não-clássicas, descritas pelo modelo estrutural de Euler-Bernoulli. A forma dos modos foi determinado com o uso das funções cilíndricas. No caso forçado se considera uma força harmônica e se resolve o problema pelo método espectral, utuilizando o software simbólico Maple V5. Realiza-se uma análise comparativa dos resultados...

25 Años de Historia de la Genética Médica en la Universidad Javeriana.

OpenAIRE

Martalucía Tamayo Fernández

2005-01-01

Libros de Medicina El Instituto de Genética Humana cumple 25 años y casi que no se sintieron, es difícil de creer. Ya han pasado 25 años desde que el Dr. Jaime Bernal Villegas regresara de su doctorado en Inglaterra e iniciara el transcurrir de la Genética Médica en la Universidad Javeriana. Pero lo que muchos desconocen es que esa historia se inició en la Javeriana mucho antes. Hay una historia detrás de la historia. ¿Qué es lo que más nos sorprende de todo ...

Sample preparation of Medicago sativa L. hay for chemical analysis ...

African Journals Online (AJOL)

The objective of this study was to quantify the effect of the grinding procedure on the moisture and crude protein concentration of a ground Medicago sativa L. hay sample for quality grading. An additional aim was to investigate the accuracy of electronic moisture testers (EMT). Variance of analyses revealed significant ...

The effect of feeding barley or hay alone or in combination with molassed sugar beet pulp on the metabolic responses in plasma and caecum of horses

DEFF Research Database (Denmark)

Jensen, R B; Austbø, Dag; Blache, D

2016-01-01

only (HAY), hay and molassed SBP (HAY + SBP), hay and pelleted barley (BAR), and hay, pelleted barley and molassed SBP (BAR + SBP). The amount of barley (2 g starch/kg body weight (BW)) fed in the test meals was similar for the BAR and BAR + SBP diets. Each diet was fed for 16 days followed by data...... to the large intestine in response to the dietary carbohydrate composition. In conclusion, there was no effect of adding molassed SBP to a meal of barley compared to feeding barley alone, and fluctuations in plasma and caecal variables were more stable when feeding hay and molassed SBP than feeding barley...

Precision and accuracy of the NDF rumen degradability of hays measured by the Daisy fermenter

Directory of Open Access Journals (Sweden)

C. Zanfi

2010-04-01

Full Text Available An inventory of 162 hay samples from Austrian permanent grasslands was used to obtain information about the precision of the in vitro NDF degradability (NDFd measured by the Daisy fermenter and its accuracy to predict in situ NDFd. The within forage standard error of the in vitro NDFd triplicate, obtained in five consecutive incubations, was equal to 2.8%, while the effect of the four jar positions in the fermenter was not significant. The cutting frequency had a great impact on the in situ effective NDFd of hays, which ranged (P<0.01 from values of 32.9, 43.1 and 48.3% in hays obtained from 2, 3 and 4 cuts/season, respectively. The regression analysis between the in vitro and in situ NDFd values (measured at 48h and effective, k=3%/h allowed to obtain medium degrees of correlation (r2 = 0.69 – 0.71; P<0.01 and low levels of accuracy (RSE = 4.0 -4.6 %.

In vitro rumen fermentation kinetics of diets containing oldman saltbush hay and forage cactus, using a cattle inoculum

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M.S.L. Tosto

2015-02-01

Full Text Available The aim of this experiment was to evaluate, by means of the semi-automated in vitro gas production technique, fermentation kinetics of carbohydrates and degradability of dry matter (DM and organic matter (OM of diets containing oldman saltbush hay levels (8.4; 18.8; 31.2 and 48.3% associated to forage cactus in natura. Pressure readings of the gases were done with a pressure transducer at 2, 4, 6, 8, 10, 12, 17, 20, 24, 28, 34, 48, 72 and 96h post-inoculation. The rumen kinetics was described by the following parameters: maximum potential of gas production, lag time and production rates of gas (k, fibrous carbohydrates (FC and non-fibrous carbohydrates (NFC. It could be observed that the addition of oldman saltbush hay to the diets promoted a quadratic effect in the production of gases originated from NFC. However, there was no significant effect on the production of gases originated from FC and on production rates of gases from NFC and FC. The degradability of DM and OM did not differ due to the addition of oldman saltbush hay. The use of 8.4% hay and 74.9% forage cactus promoted the maximum potential of production of gases from the fibrous fraction of diets containing cactus and oldman saltbush hay.

Estudio de nuevas estrategias para el control de la combustion en modos parcialmente premezclados en motores de encendido por compresión

OpenAIRE

Doménech Llopis, Vicente

2013-01-01

En los últimos años, dentro del marco de los motores de encendido por compresión, el número de investigaciones centradas en el desarrollo y estudio de nuevos modos de combustión de baja temperatura premezclados ha sido ingente. Dichos modos presentan indudables ventajas respecto a los modos convencionales de combustión Diesel por difusión, sobre todo en cuanto a la reducción de emisiones contaminantes, especialmente de NOx y hollín características de estos motores. No ...

Modos de afrontamiento de estrés laboral en una muestra de docentes universitarios

Directory of Open Access Journals (Sweden)

Eloísa Guerrero Barona

2002-01-01

Full Text Available Los objetivos del presente estudio han sido comprobar si las variables antecedentes (demográficas, sociales, laborales y motivacionales que se han empleado en las numerosas investigaciones realizadas sobre estrés y burnout docente pudieran también estar asociadas a los diferentes modos de afrontar el estrés laboral, y en ese caso, constatar las posibles variables predictoras y el porcentaje de varianza asociada. Para ello trabajamos con una muestra formada por 258 profesores-as de la Universidad de Extremadura empleando un cuestionario sociodemográfico, laboral y motivacional, de elaboración propia, y la escala de técnicas de afrontamiento del estrés de Carver et al. (1989. Con todos los grupos de variables realizamos una estadística descriptiva e inferencial que completamos con varios análisis de regresión múltiple utilizando el método stepwise, a un nivel de confianza del 95%. Los resultados que se desprenden indican que, en su conjunto, los predictores sociodemográficos (sexo, edad y paternidad explican el 15,5% de los modos de afrontar el estrés, los predictores laborales (categoría docente, semidistritos y años de experiencia explican un 8% y, por último, los motivacionales (inconvenientes, causas de BLT y nº de BLT explican el 25,5% de la varianza de los modos de afrontar el estrés.

FT-IR spectroscopic analysis for studying Clostridium cell response to conversion of enzymatically hydrolyzed hay

Science.gov (United States)

Grube, Mara; Gavare, Marita; Nescerecka, Alina; Tihomirova, Kristina; Mezule, Linda; Juhna, Talis

2013-07-01

Grass hay is one of assailable cellulose containing non-food agricultural wastes that can be used as a carbohydrate source by microorganisms producing biofuels. In this study three Clostridium strains Clostridium acetobutylicum, Clostridium beijerinckii and Clostridium tetanomorphum, capable of producing acetone, butanol and ethanol (ABE) were adapted to convert enzymatically hydrolyzed hay used as a growth media additive. The results of growth curves, substrate degradation kinetics and FT-IR analyses of bacterial biomass macromolecular composition showed diverse strain-specific cell response to the growth medium composition.

Substitution of lucerne hay by ammoniated wheat straw in growth ...

African Journals Online (AJOL)

Lucerne hay (LH) was substituted by urea-ammoniated wheat straw (AWS) in four lamb-growth diets, all containing 60% roughage. ... Die ekonomiese voordeel van die verplasing van 'n hoë kwaliteit ruvoer, soos LH, met'n goedkoper bron (AKS), moet opgeweeg word teen die laer DMI en GDT, sowel as die nadelige effek ...

Supplementation of Farta sheep fed hay with graded levels of concentrate mix consisting of noug seed meal and rice bran.

Science.gov (United States)

Asmare, Bimrew; Melaku, Solomon; Peters, Kurt J

2010-10-01

The study was carried out at Woreta, Ethiopia, to determine feed intake, digestibility, body weight (BW) change, and profitability of Farta sheep fed pasture hay alone or supplemented with graded levels of concentrate mix (CM) consisting of noug seed meal (NSM) and rice bran in 2:1 ratio. Twenty yearling intact male Farta sheep with BW of 16.9 +/- 1.68 kg (mean +/- SD) were used in randomized complete block design arranged into five blocks of four animals. The dietary treatments consisting of sole natural pasture hay (T1, control), hay +200 g of CM dry matter (DM) (T2, low), hay +300 g of CM DM (T3, medium), and hay +400 g of CM DM (T4, high) were randomly assigned to sheep within each block. Common salt and water were available to animals all the time. The supplements were offered twice daily in equal portions at 0800 and 1600 h. Supplementation with the CM increased (P profitability. Among the supplemented treatments, the high level of supplementation resulted in better (P profitability. Thus, the high level of supplementation is recommended based on biological performance and profitability under conditions of this study.

A broader definition of occupancy: Comment on Hayes and Monfils

Science.gov (United States)

Quresh S. Latif; Martha M. Ellis; Courtney L. Amundson

2016-01-01

Occupancy models are widely used to analyze presence-absence data for a variety of taxa while accounting for observation error (MacKenzie et al. 2002, 2006; Tyre et al. 2003; Royle and Dorazio 2008). Hayes and Monfils (2015) question their use for analyzing avian point count data based on purported violations of model assumptions incurred by avian mobility....

Interactions of alfalfa hay and sodium propionate on dairy calf performance and rumen development.

Science.gov (United States)

Beiranvand, H; Ghorbani, G R; Khorvash, M; Nabipour, A; Dehghan-Banadaky, M; Homayouni, A; Kargar, S

2014-01-01

The objective of this experiment was to investigate the effects of different levels of alfalfa hay (AH) and sodium propionate (Pro) added to starter diets of Holstein calves on growth performance, rumen fermentation characteristics, and rumen development. Forty-two male Holstein calves (40±2kg of birth weight) were used in a complete randomized design with a 3×2 factorial arrangement of treatments. Dietary treatments were as follows: (1) control = concentrate only; (2) Pro = concentrate with 5% sodium propionate [dry matter (DM) basis]; (3) 5% AH = concentrate + 5% alfalfa hay (DM basis); (4) 5% AH + Pro = concentrate + 5% alfalfa hay + 5% sodium propionate (DM basis); (5) 10% AH = concentrate + 10% alfalfa hay (DM basis); and (6) 10% AH + Pro = concentrate + 10% alfalfa hay + 5% sodium propionate (DM basis). All calves were housed in individual pens bedded with sawdust until 10wk of age. They were given ad libitum access to water and starter throughout the experiment and were fed 2L of milk twice daily. Dry matter intake was recorded daily and body weight weekly. Calves from the control, 10% AH, and 10% AH + Pro treatments were euthanized after wk 10, and rumen wall samples were collected. Feeding of forage was found to increase overall dry matter intake, average daily gain, and final weight; supplementing sodium propionate had no effect on these parameters. Calves consuming forage had lower feed efficiency than those on the Pro diet. Rumen fluid in calves consuming forage had higher pH and greater concentrations of total volatile fatty acids and molar acetate. Morphometric parameters of the rumen wall substantiated the effect of AH supplementation, as plaque formation decreased macroscopically. Overall, the interaction between forage and sodium propionate did not affect calf performance parameters measured at the end of the experiment. Furthermore, inclusion of AH in starter diets positively enhanced the growth performance of male Holstein calves and influenced

Food hygiene assessment in catering establishments in Hay Hassani district-Casablanca.

Science.gov (United States)

Kadmiri, Nadia El; Bakouri, Halima; Bassir, Fatima; Barmaki, Saadia; Rachad, Laila; Nadifi, Sellama; Kadmiri, Omar El; Amina, Bouleghmane

2016-01-01

Contaminated food is responsible for a significant amount of illnesses. In Morocco, it has become a worrying concern. Numerous awareness campaigns are conducted to warn the population against the risks of such scourge in ways that will prevent foodborne illness. Lawful commissions are in charge of examining and ensuring food safety in production and catering establishments, in addition to the assessment of food poisoning risks. The aim of this study is to evaluate the hygienic quality of food handling, preparation, and storage in catering establishments within Hay Hassani prefecture in Casablanca. During the period 2006-2012 a total of 1765 food samples were taken and examined for microbiological quality tests. As analyzed, 562 per 1765 samples are declared unhealthy for consumption. We note that some products were highly contaminated as compared to other products (p <0.001), specifically vegetable dishes, and meat dishes. In Hay Hassani district food is generally prepared and sold under unhygienic conditions, adequate corrective measures have been announced to improve hygienic practices.

Radioimmunological allergy diagnostics in infants suffering from asthmatoid bronchitis, bronchial asthma, and hay fever

International Nuclear Information System (INIS)

Siafarikas, K.; Glaubitt, D.; Wanzeck, E.; Staedtische Krankenanstalten Krefeld

1975-01-01

The occurence of circulating specific antibodies against milk protein, hen protein, fish (cod), against cat, dog and horse epithelium as well as against 2 types of house dust was investigated with 11 children in the age of 1-6 years having asthmatoid bronchitis, 23 children aging from 2-15 years with bronchial asthma and 3 children aging from 6-13 years with hay fever, using the radioallergosorbens test (RAST). Children having asthmatoid bronchitis for the first time exhibited a smaller number and a lesser extent of positive radioallergosorben test results then children with bronchial asthma. The children with hay fever exhibited exclusively negative test results. (orig./LN) [de

Predicting TDN losses from heat damaged hays and haylages with NIR

Science.gov (United States)

During the storage of hay or haylage, heating damage may occur and lead to losses of available protein and digestible nutrients. Recent research indicates that losses of TDN may be more significant economically than losses of available protein. Our objectives for this study were to establish a near-...

Hayes Receives 2012 Ronald Greeley Early Career Award in Planetary Science: Citation

Science.gov (United States)

Leshin, Laurie A.

2013-10-01

Alexander G. Hayes Jr. received the 2012 Ronald Greeley Early Career Award in Planetary Science at the 2012 AGU Fall Meeting, held 3-7 December in San Francisco, Calif. The award recognizes significant early-career contributions to planetary science.

Investigação do Modo Sul em dados de precipitação no período de 1982 a 2006 no estado do Rio Grande do Sul Research of "modo sul" on rainfall data during the period from 1982 to 2006 in Rio Grande do Sul state

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Luana Albertani Pampuch

2012-03-01

Full Text Available Este trabalho apresenta o estudo de um modo de variabilidade que influencia a precipitação no Sul do Brasil e é chamado Modo Sul de precipitação. Será mostrado que a ocorrência de máximos (e mínimos do Modo Sul de precipitação pode estar relacionada à ocorrência de eventos extremos no Rio Grande do Sul, como vendavais, enchentes, granizo e estiagens Utilizando a análise de componentes principais em dados de precipitação diária filtrados na banda 10-50 dias, são encontrados campos espaciais e temporais que representam a máxima variância de determinadas variabilidades, e neles são detectados Modos de Variabilidade de precipitação. Desta maneira, foi possível determinar este modo de variabilidade, que aparece bem configurado na região do Rio Grande do Sul. A série de componentes principais foi usada para a escolha desses eventos. O Modo Sul foi calculado para o período de 01/03/1982 à 31/05/2006. Foi possível identificar que os eventos extremos chuvosos ocorreram em maior número do que os eventos extremos secos. Na análise decadal verificou-se um aumento no número de eventos, quando comparada às décadas de 80, 90 e 2000. Vale ressaltar que o número de eventos da década de 2000 em relação à década de 80 (proporcionalmente foi o mais expressivo.This work presents a study of a rainfall variability mode that acts in southern Brazil and is called "Modo Sul" of precipitation. It was tried to show that the occurrences of maximum (and minimum of the "Modo Sul" of precipitation are related to the occurrence of extreme events in Rio Grande do Sul, as windstorm, flood, hail and drought. Using principal component analysis of daily filtered precipitation data for the 10-50 day band we found spatial pattern and temporal series that represent the maximum variance of certain variabilities, which are the modes of precipitation variability. Thus, it was possible to determine the mode of variability that appears well

Un sistema operativo mejorado

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Carmen Alicia Fernández

2015-01-01

Full Text Available Para quienes están inmersos en el Internet y el mundo digital y usan el PC como fuente de entretenimiento, no pierda tiempo una vez que Windows ME llegue a su país, su experiencia será mucho más intensa claro que hay requerimientos para su instalación.

Quality of aged shoulder from lambs fed with different oldman saltbush hay levels (Atriplex nummularia

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Tharcilla Isabella Rodrigues Costa Alvarenga

2014-12-01

Full Text Available This study assessed the effects of different levels of oldman saltbush hay and ageing time on the physical characteristics of Santa Inês lamb meat. Sixty shoulders from 32 male lambs fed with 30, 40, 50 or 60% oldman saltbush hay for 60 days were vacuum-packaged and stored in a refrigerator at 0 ± 1°C for 0, 7 or 14 days of ageing. The shear force, cooking loss and water holding capacity were 3.06kgf cm-2, 37.28% and 76.71%, respectively, and there were no significant changed by studied factors (P>0.05

Diversity of lowland hay meadows and pastures in Western and Central Europe

NARCIS (Netherlands)

Rodríguez-Rojo, Maria Pilar; Jiménez-Alfaro, Borja; Jandt, Ute; Bruelheide, Helge; Rodwell, John S.; Schaminée, Joop H.J.; Perrin, Philip M.; Kacki, Zygmunt; Willner, Wolfgang; Fernández-González, Federico; Chytrý, Milan

2017-01-01

Questions: Which are the main vegetation types of lowland hay meadows and pastures in Western and Central Europe? What are the main environmental gradients that drive patterns of species composition? Is it possible to classify these grasslands to phytosociological alliances that reflect management

Fulbright-Hays Seminars Abroad Program 1992: Morocco and Tunisia. Final Projects.

Science.gov (United States)

AMIDEAST, Washington, DC.

The projects described in this document were submitted by U.S. teachers who spent time in Morocco and Tunisia as part of the 1992 Fulbright-Hays Seminars Abroad Program. The following are among the titles of the projects included: "Formal Education in Rural Morocco: Problems and Constraints" (Victoria Baker); "Continuity and Change…

La amistad en el cine de Pixar: la noción aristotélica de amistad como clave de análisis cinematográfico

OpenAIRE

Figa Vaello, Jaume

2017-01-01

Las producciones de Pixar Animation Studios han marcado un antes y un después en el cine, no solo en el llamado “cine de animación”; su nuevo modo de contar historias y la solidez de sus guiones han hecho que muchos estudios de Hollywood se replanteen cómo realizar las películas. Este nuevo modo de contar historias se manifiesta, sobre todo, en que los personajes de las películas de la compañía del flexo tienen una caracterización muy humana y, por lo tanto, manifiestan en su a...

Nutritional value of silk flower hay for lambs Valor nutritional do feno de flor-de-seda para cordeiros

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Aderbal Marcos de Azevêdo Silva

2010-12-01

Full Text Available It was evaluated four levels of silk flower (Calotropis procera S.W. hay (SFH as a substitute of sorghum (Sorghum bicolor hay (SBH in diet for lambs. Nutritional value of silk-flower hay was determined based on aparent digestibility and on metabolic, productive and economical performance of Santa Inês lambs. It was used twenty-four castrated males at 15.72 ± 1.92 kg body weight randomly distributed in four diets with silk-fklower and sorghum hay ratios (100:0, 66:33, 33:66, 0:100, and supplemented with a concentrate mixture based on 50% roughage:50% concentrate (weight/weight. Increase in the levels of silk-flower hay in the diet reduced weight gain and nutrient intake and it increased feed conversion and digestibility coeficients of all the nutrients. Nitrogen balance was similar in all levels of silk-flower hay, although there was a tendency of reduction in nitrogen retention at levels 66% and 100% of silk-flower hay. At the levels 0 and 33% of silk-flower hay in the diet, dry matter ingestion (170 and 180 g/day, daily average weight gain (84 and 89 g/kg0.75and feed conversion (4.99 and 5.02 were satisfactory. Silk-flower hay can represent up to 16.5% of the total food ingestion or 33% of the roughage in diet for lambs.Avaliaram-se quatro níveis de feno de flor-de-seda (Calotropis procera S.W. em substituição ao feno de sorgo (Sorghum bicolor na dieta de cordeiros. O valor nutricional do feno de flor-de-seda foi determinado com base na digestibilidade aparente e no desempenho metabólico, produtivo e econômico de cordeiros Santa Inês. Utilizaram-se 24 machos castrados com peso corporal de 15,72 kg ± 1,92 kg distribuídos aleatoriamente em quatro dietas com relações entre feno de flor-de-seda e de sorgo (100:0, 66:33, 33:66 e 0:100 e suplementadas com uma mistura concentrada à base de 50% de volumos e 50% de concentrado (peso/peso. O aumento nos níveis de feno de flor-de-seda na dieta diminuiu o ganho de peso e a ingestão de

Komposisi Kimia, Degradasi Nutrien dan Produksi Gas Metana in Vitro Rumput Tropik yang Diawetkan dengan Metode Silase dan Hay

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B. Santoso

2008-08-01

Full Text Available Six grass species (Pennisetum purpureum, Pennisetum purpureophoides, Sorghum sudanense, Brachiaria brizantha, Imperata cylindrica, and Panicum maximum were harvested at 49 days and preserved as silage or as hay. Samples of silage and hay were evaluated by an in vitro gas production and in vitro nutrient degradability. Total gas production at 24 and 48 h as well as CH4 were higher (P<0.01 in silage than in hay. Brachiaria brizantha had the highest (P<0.01 gas production compared to other species, whereas P. purpureum had the highest CH4 production (mM/g organic matter degraded. Dry matter (DM and organic matter (OM degradations were higher (P<0.01 in silage than hay. When compared with hay, silage had higher (P<0.01 ammonia-N concentration (20.3 vs. 10.6 mg/100 ml and higher (P<0.05 butyric acid concentration (7.9 vs. 7.0 mM. Non-fiber carbohydrate (NFC and crude protein contents were positively correlated with gas production (r = 0.51; P<0.05 and CH4 production (r = 0.64; P<0.01 at 48 h of in vitro incubation. However total gas and CH4 productions were negatively correlated with neutral detergent fiber (NDF content. There were positive correlation between DM (r = 0.90; P<0.01, OM (r = 0.93; P<0.01, and NDF (r = 0.84; P<0.01 degradations and gas production.

Effects of alfalfa hay and its physical form (chopped versus pelleted) on performance of Holstein calves.

Science.gov (United States)

Jahani-Moghadam, M; Mahjoubi, E; Hossein Yazdi, M; Cardoso, F C; Drackley, J K

2015-06-01

Inclusion of forage and its physical form in starter may affect rumen development, average daily gain (ADG), and dry matter intake (DMI) of dairy calves. To evaluate the effects of forage and its physical form (chopped vs. pelleted) on growth of calves under a high milk feeding regimen, 32 Holstein calves (38.8±1.1kg) were assigned at birth to 1 of 3 treatments in a completely randomized block design. Dietary treatments (% of dry matter) were (1) 100% semi-texturized starter (CON); (2) 90% semi-texturized starter + 10% chopped alfalfa hay (mean particle size=5.4mm) as a total mixed ration (TMR; CH); and (3) 90% semi-texturized starter + 10% pelleted alfalfa (mean=5.8mm) hay as a TMR (PH). Data were subjected to mixed model analysis with contrasts used to evaluate effect of forage inclusion. Calves were weaned at 76 d of age and the experiment finished 2 wk after weaning. Individual milk and solid feed consumption were recorded daily. Solid feed consumption and ADG increased as age increased (effect of week), but neither forage inclusion nor physical form of forage affected these variables pre- or postweaning. Plasma urea N was affected by treatments such that the CON group had a lower concentration than forage-fed groups. Forage inclusion, but not physical form, resulted in increased total protein in plasma. Although days with elevated rectal temperature, fecal score, and general appearance were not affected by dietary treatments, calves fed alfalfa hay during the first month of life had fewer days with respiratory issues, regardless of physical form of hay. We concluded that provision of forage does have some beneficial effects in calves fed large amounts of milk replacer, but pelleted alfalfa hay did not result in any improvement in calf performance or health. Copyright © 2015 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.

Arquitectura multi-controlador con transferencia sin salto para procesos con conmutación de modos

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Nagore Iriondo

2013-04-01

Full Text Available Resumen: Los sistemas con conmutación de modos se definen como aquéllos que pueden exhibir diferente comportamiento dinámico en función del estado en que se encuentran. Pueden por tanto ser descritos por un conjunto finito de subsistemas dinámicos y una lógica que rige la conmutación entre ellos. Una alternativa para su control es la arquitectura multi-controlador con supervisión ya que permite utilizar controladores de modo diferentes y alcanzar así múltiples objetivos de control. Pero la conmutación de controladores suele tener como consecuencia la aparición de saltos o transitorios derivados que pueden ser inaceptables. Este tipo de sistemas y problemática son frecuentes en diferentes áreas de aplicación industrial, en donde la tecnología de control más utilizada es el Controlador Lógico Programable (PLC. Es por ello que el objetivo de este trabajo es presentar un método de diseño e implementación de un mecanismo de transferencia sin salto (BT en una arquitectura multi-modo y multi-bucle para sistemas con conmutación de modos, en PLC y en conformidad con el estándar IEC 61131-3. La estrategia BT se basa en que controladores de modos candidatos a conmutar realicen un seguimiento a los controladores activos, siendo la detección del estado de operación actual y de los posibles estados siguientes, clave en la definición de la forma de ejecución de los algoritmos de control que componen la arquitectura. Se presentan también los pasos del diseño de la arquitectura completa así como resultados experimentales que validan la arquitectura. Abstract: Switched mode systems are defined as those represented by a finite set of linear subsystems and a set of logic rules orchestrating the switching among them. A set of dynamic subsystems together with a logical system that orchestrates the switching among them could be used in order to describe it. An alternative to control them is a supervisory multi-mode controller architecture

A broader definition of occupancy: A reply to Hayes and Monofils

Science.gov (United States)

Fatif, Quresh; Ellis, Martha M.; Amundson, Courtney L.

2015-01-01

Occupancy models are widely used to analyze presence–absence data for a variety of taxa while accounting for observation error (MacKenzie et al. 2002, 2006; Tyre et al. 2003; Royle and Dorazio 2008). Hayes and Monfils (2015) question their use for analyzing avian point count data based on purported violations of model assumptions incurred by avian mobility. Animal mobility is an important consideration, not just for occupancy models, but for a variety of population and habitat models (Boyce 2006, Royle et al. 2009, Manning and Goldberg 2010, Dormann et al. 2013, Renner et al. 2015). Nevertheless, we believe the ultimate conclusions of Hayes and Monfils are shortsighted mainly due to a narrow interpretation of occupancy. Rather than turn away from the use of occupancy models, we believe they remain an appropriate method for analyzing many data sets collected from avian point count surveys. Further, we suggest that there is value in having a broader and more nuanced interpretation of occupancy that incorporates the potential for animal movement. 

Reproductive performance of reindeer fed all-grain and hay-grain rations

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J. M. Blanchard

1986-06-01

Full Text Available Reproductive performance of grain-fed reindeer {Rangifer tarandus was evaluated over a 2-year period. Groups of pregnant reindeer were fed one of three rations, (1 100% whole-grain barley, (2 98.9% whole-grain barley and 1.2% mineral and trace element supplement, and (3 70% whole-grain barley and 30% finely-chopped bluegrass hay. Reindeer fed unsupplemented whole-barley failed to produce a single live calf. The addition of mineral and trace element supplement to the ration did not result in any significant improvement in reproductive performance. Eighty-five percent of the reindeer consuming unsupplemented and supplemented all-barley rations became pregnant; however, 76% of the pregnancies resulted in stillborn calves. One-hundred percent of the cows maintained on the grain/hay ration produced live calves. We speculate that reproductive failure in reindeer cows maintained on all-grain rations is most likely a result of a diet induced disfunction in maternal rumen and/or carbohydrate metabolism rather than a micro-nutrient deficiency. More research is neeeded to determine which metabolic pathways are affected.

Kajian Mutu dan Palatibilitas Silase dan Hay Ransum Komplit Berbasis Sampah Organik Primer pada Kambing Peranakan Etawah

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Yusmadi Yusmadi

2008-04-01

Full Text Available The quality and palatibility of silage and hay complete ration based on organic primer garbage in peranakan etawah (PE poad ABSTRACT. This research was conducted to study the quality and palatability of silage and hay complete ration based on organic primer garbage in nine heads of Peranakan Etawah (PE Goat. The quality of silage and hay was evaluated By measuring pH, total number of lactic acid Bacteria (LAB, palatability, dry matter (DM and organic matter (OM aroma and color of silage. Nine heads of peranakan etawah were grouped based on their lactation periode and randomly assigned to one of tree dietary treatments. The treatments were (1 Control rations; (2 silage complete ration (SRK; and (3 Hay complete ration (HRK. The results indicated that the silage had PH 4.15 and total number of LAB was 2.4 x 10 cfu/g of silage. Dry matter and organic matter digestibility of SRK were better than those of HRK. The palatability of SRK was higher than HRK but less than control. Storage of SRK for did not change dry matter and organic matter content. Organoleptic analysis indicated that texture and color of HRK were changed at after storage, while SRK was still constant. It is concluded that silage composed of organic primer garbage has high quality in terms of physical, chemical and microbial characteristics, prolong storage.

Los jóvenes en el tráfico: Circunstancias culturales, sociales y psicológicas

OpenAIRE

Alonso Plá, Francisco Manuel; Esteban Martínez, Cristina; Calatayud Miñana, Constanza; Montoro González, Luis; Alamar Rocatí, Beatriz

2004-01-01

Los datos de mortalidad en nuestras carreteras son una de las principales noticias de todos los periódicos en sus páginas al comenzar un nuevo año. A esta cifra hay que sumar el número de muertes en el suelo urbano: accidentes de vehículos, atropellos... Los jóvenes no se salvan, hasta el punto de que los accidentes son la principal causa de muerte entre la población más joven de nuestro país y de cualquier país occidental. No hay duda de que muchos de los comportamientos que tienen lo...

Towards a political ontology of state power: a comment on Colin Hay's article.

Science.gov (United States)

Jessop, Bob

2014-09-01

This article offers some critical realist, strategic-relational comments on Colin Hay's proposal to treat the state as an 'as-if-real' concept. The critique first develops an alternative account of ontology, which is more suited to analyses of the state and state power; it then distinguishes the 'intransitive' properties of the real world as an object of investigation from the 'transitive' features of its scientific investigation and thereby provides a clearer understanding of what is at stake in 'as-if-realism'; and it ends with the suggestion that a concern with the modalities of state power rather than with the state per se offers a more fruitful approach to the genuine issues raised in Hay's article and in his earlier strategic-relational contributions to political analysis. © London School of Economics and Political Science 2014.

Estimating the causal effect of body mass index on hay fever, asthma and lung function using Mendelian randomization

DEFF Research Database (Denmark)

Skaaby, T; Taylor, A E; Thuesen, B H

2018-01-01

effects. We examined the causal effect of BMI on asthma, hay fever, allergic sensitization, serum total immunoglobulin E (IgE), forced expiratory volume in one-second (FEV1) and forced vital capacity (FVC). METHODS: We included 490 497 participants in the observational and 162 124 participants...... support the conclusion that increasing BMI is causally related to higher prevalence of asthma and decreased lung function, but not with hay fever or biomarkers of allergy....

Effect of increasing the level of alfalfa hay in finishing beef heifer diets on intake, sorting, and feeding behavior.

Science.gov (United States)

Madruga, A; González, L A; Mainau, E; Ruíz de la Torre, J L; Rodríguez-Prado, M; Manteca, X; Ferret, A

2018-02-15

Eight rumen cannulated Simmental heifers (BW = 281.4 ± 7.28 kg) were randomly assigned to one of four experimental treatments in a 4 × 4 replicated Latin square design to ascertain the effects of increasing levels of alfalfa hay on intake, sorting, and feeding behavior in comparison to barley straw as forage source. Treatments tested were four total mixed rations with: 1) 10% barley straw (10BS) with 7.0% NDF from forage, 2) 13% alfalfa hay (13AH) and less NDF from forage (5.7%) than 10BS, 3) 16% alfalfa hay (16AH) and the same NDF from forage (7.0%) as 10BS, and 4) 19% alfalfa hay (19AH) and more NDF from forage (8.3%) than 10BS. Each experimental period consisted of 3 wk for adaptation and 1 wk for sampling. Increasing the proportion of alfalfa hay in the diet linearly increased (P comparison to the 10BS diet. In the same way, intake of long, medium, and short particle size was greater in this diet. Moreover, heifers fed 19AH sorted for medium particle size and tended to sort for long and short particles size, and against fine particle size. Sorting behavior and meal length increased in the 19AH diet, which leads us to think that sorting feed ingredients requires time and therefore lengthens the meal. Time spent ruminating was greater in heifers fed 19AH, thus reducing the risk of ruminal acidosis when animals are fed high concentrate diets.

Organic vs. conventional grassland management: do (15)N and (13)C isotopic signatures of hay and soil samples differ?

Science.gov (United States)

Klaus, Valentin H; Hölzel, Norbert; Prati, Daniel; Schmitt, Barbara; Schöning, Ingo; Schrumpf, Marion; Fischer, Markus; Kleinebecker, Till

2013-01-01

Distinguishing organic and conventional products is a major issue of food security and authenticity. Previous studies successfully used stable isotopes to separate organic and conventional products, but up to now, this approach was not tested for organic grassland hay and soil. Moreover, isotopic abundances could be a powerful tool to elucidate differences in ecosystem functioning and driving mechanisms of element cycling in organic and conventional management systems. Here, we studied the δ(15)N and δ(13)C isotopic composition of soil and hay samples of 21 organic and 34 conventional grasslands in two German regions. We also used Δδ(15)N (δ(15)N plant - δ(15)N soil) to characterize nitrogen dynamics. In order to detect temporal trends, isotopic abundances in organic grasslands were related to the time since certification. Furthermore, discriminant analysis was used to test whether the respective management type can be deduced from observed isotopic abundances. Isotopic analyses revealed no significant differences in δ(13)C in hay and δ(15)N in both soil and hay between management types, but showed that δ(13)C abundances were significantly lower in soil of organic compared to conventional grasslands. Δδ(15)N values implied that management types did not substantially differ in nitrogen cycling. Only δ(13)C in soil and hay showed significant negative relationships with the time since certification. Thus, our result suggest that organic grasslands suffered less from drought stress compared to conventional grasslands most likely due to a benefit of higher plant species richness, as previously shown by manipulative biodiversity experiments. Finally, it was possible to correctly classify about two third of the samples according to their management using isotopic abundances in soil and hay. However, as more than half of the organic samples were incorrectly classified, we infer that more research is needed to improve this approach before it can be efficiently

Organic vs. Conventional Grassland Management: Do 15N and 13C Isotopic Signatures of Hay and Soil Samples Differ?

Science.gov (United States)

Klaus, Valentin H.; Hölzel, Norbert; Prati, Daniel; Schmitt, Barbara; Schöning, Ingo; Schrumpf, Marion; Fischer, Markus; Kleinebecker, Till

2013-01-01

Distinguishing organic and conventional products is a major issue of food security and authenticity. Previous studies successfully used stable isotopes to separate organic and conventional products, but up to now, this approach was not tested for organic grassland hay and soil. Moreover, isotopic abundances could be a powerful tool to elucidate differences in ecosystem functioning and driving mechanisms of element cycling in organic and conventional management systems. Here, we studied the δ15N and δ13C isotopic composition of soil and hay samples of 21 organic and 34 conventional grasslands in two German regions. We also used Δδ15N (δ15N plant - δ15N soil) to characterize nitrogen dynamics. In order to detect temporal trends, isotopic abundances in organic grasslands were related to the time since certification. Furthermore, discriminant analysis was used to test whether the respective management type can be deduced from observed isotopic abundances. Isotopic analyses revealed no significant differences in δ13C in hay and δ15N in both soil and hay between management types, but showed that δ13C abundances were significantly lower in soil of organic compared to conventional grasslands. Δδ15N values implied that management types did not substantially differ in nitrogen cycling. Only δ13C in soil and hay showed significant negative relationships with the time since certification. Thus, our result suggest that organic grasslands suffered less from drought stress compared to conventional grasslands most likely due to a benefit of higher plant species richness, as previously shown by manipulative biodiversity experiments. Finally, it was possible to correctly classify about two third of the samples according to their management using isotopic abundances in soil and hay. However, as more than half of the organic samples were incorrectly classified, we infer that more research is needed to improve this approach before it can be efficiently used in practice

Guillaume Cuchet, director. Le Purgatoire. Fortune historique et historiographique d’un dogme

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Renán Silva

2013-07-01

Full Text Available En Colombia no son tan frecuentes los balances historiográficos, o por lo menos no son tan frecuentes como se desearía —abundan más bien los “estados del arte” en las páginas iniciales de una tesis o de un trabajo de maestría, en general con buena información sobre un tema particular, tratado de manera monográfica—. Pero balances historiográficos, en sentido estricto, es decir trabajos que den cuenta de la totalidad de la investigación en un campo determinado —estudiando con detalle las formas de tratamiento del tema desde el punto de vista de los enfoques, los métodos y las técnicas—, que muestren al mismo tiempo “el ascenso y la caída” de un cierto tema de investigación y la forma de acercamiento dominante en un momento determinado, y que además pongan en relación ese tema particular con el conjunto de la producción historiográfica en un área mayor (aquí, por ejemplo, las historias de las mentalidades y de la cultura y con los avatares mismos de la sociedad de que se trate, ese tipo de balances historiográficos no son frecuentes entre nosotros, y hay que lamentarlo.  Le Purgatoire. Fortune historique et historiographique d’ un dogme cumple con creces esa necesidad que señalamos, y puede ser visto grosso modo como un modelo de trabajos que hay que iniciar o continuar, si existen, en muchos campos de la investigación histórica en el país.

Effects of feeding pregnant beef cows selenium-enriched alfalfa hay on selenium status and antibody titers in their newborn calves.

Science.gov (United States)

Wallace, L G; Bobe, G; Vorachek, W R; Dolan, B P; Estill, C T; Pirelli, G J; Hall, J A

2017-06-01

In newborn dairy calves, it has been demonstrated that supranutritional maternal and colostral Se supplementation using Se yeast or sodium selenite, respectively, improves passive transfer of IgG. In beef cattle, agronomic biofortification with Se is a more practical alternative for Se supplementation, whereby the Se concentration of hay is increased through the use of Se-containing fertilizer amendments. It has been previously demonstrated that agronomic Se biofortification is an effective strategy to improve immunity and performance in Se-replete weaned beef calves. The objective of this experiment was to determine the effects of feeding beef cows Se-enriched alfalfa () hay during the last 8 to 12 wk of gestation on passive transfer of antibodies to calves. At 10 wk ± 16 d before calving, 45 cows were assigned to 1 of 3 treatment groups with 3 pens (5 cows/pen) per treatment: Control cows were fed non-Se-fortified alfalfa hay plus a mineral supplement containing 120 mg/kg Se from sodium selenite, Med-Se cows were fed alfalfa hay fertilized with 45.0 g Se/ha as sodium selenate, and High-Se cows were fed alfalfa hay fertilized with 89.9 g Se/ha as sodium selenate; both the Med-Se and the High-Se groups received mineral supplement without added Se. Colostrum and whole blood (WB) were collected from cows at calving, and WB was collected from calves within 2 h of calving and at 12, 24, 36, and 48 h of age. Concentrations of IgG1 and J-5 antibody in cow colostrum and calf serum were quantified using ELISA procedures. Selenium concentrations linearly increased in WB ( cows and in WB of newborn calves ( cows fed Se-biofortified alfalfa hay, but J-5 antibody ( = 0.43) concentrations were not. Calf serum IgG1 ( = 0.43) and J-5 antibody ( = 0.44) concentrations during the first 48 h of age were not affected by prior Se treatment of cows. These data suggest that feeding Se-biofortified alfalfa hay promotes the accumulation of Se and antibodies in colostrum but does not

Willet M. Hays, great benefactor to plant breeding and the founder of our association.

Science.gov (United States)

Troyer, A F; Stoehr, H

2003-01-01

Willet M. Hays was a great benefactor to plant breeding and the founder of the American Genetic Association (AGA). We commemorate the AGA's centennial. We mined university archives, U.S. Department of Agriculture (USDA) yearbooks, plant breeding textbooks, scientific periodicals, and descendants for information. Willet Hays first recognized the individual plant as the unit of selection and started systematic pure-line selection and progeny tests in 1888. He developed useful plant breeding methods. He selected superior flax (Linum usitatissimum L.), wheat (Triticum vulgare L.), corn (Zea mays L.), barley (Hordeum vulgare L.), and oat (Avena sativa L.) varieties, and discovered Grimm alfalfa (Medicago sativa L.); all became commercially important. He initiated branch stations for better performance testing. Willet Hays befriended colleagues in other universities, in federal stations, in a London conference, and in Europe. He gathered and spread the scientific plant breeding gospel. He also improved rural roads and initiated animal breeding records and agricultural economics records. He started the AGA in 1903, serving as secretary for 10 years. He became assistant secretary of agriculture in 1904. He introduced the project system for agricultural research. He authored or coauthored the Nelson Amendment, the Smith-Lever Act, the Smith-Hughes Act, and the protocol leading to the United Nations Food and Agriculture Organization-all involved teaching agricultural practices that improved the world.

El concepto de modo de producción de Manuel Castells: continuidades y rupturas con la visión marxiana del capitalismo

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Esteban Torres

2018-03-01

Full Text Available En este artículo se ofrece un análisis general de los movimientos de cambio conceptual y de las operaciones teóricas principales que efectúa Manuel Castells sobre su noción de Modo de Producción en su paso del marxismo al pos-marxismo. Entre los movimientos y las operaciones más sobresalientes cabe destacar el paso del Modo de Producción a la fórmula Modo de Producción/Modo de Desarrollo, el paso de una teoría relacional de clases a un enfoque divisionista, así como el paso de la teoría del valor trabajo a una visión socio-relativista del valor. Este producto representa un punto de acceso específico a la pregunta por las formas de apropiación de la teoría marxista por parte de aquellos teóricos sociales contemporáneos que edifican su perspectiva sociológica a partir de una contraposición total o parcial con la tradición del materialismo histórico.

Modos de enfrentamento dos estressores de pessoas em tratamento hemodiálitico: revisão integrativa da literatura Modos de enfrentamento de los estresores de personas en tratamiento hemodialítico: revisión integrativa de la literatura Ways for people on hemodialysis to deal with stressors: a literature review

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Daniela Comelis Bertolin

2008-01-01

Full Text Available Foi realizada uma revisão integrativa da literatura com o objetivo de sintetizar a contribuição das pesquisas realizadas sobre os modos de enfrentamento das pessoas em tratamento hemodialítico. Através do levantamento bibliográfico foram identificados 12 artigos que compuseram a amostra do estudo. Os resultados apontam que os modos de enfrentamento focados no problema são mais utilizados e que a depressão se correlacionou positivamente com os modos de enfrentamento focados na emoção para pessoas em tratamento hemodialítico. A identificação dos modos de enfrentamento é informação valiosa para planejar o tratamento individualizado que proporcione controle dos estressores inerentes a doença e ao tratamento hemodialítico, subsidiando melhor adaptação do paciente ao regime terapêutico.Fue realizada una revisión integrativa de la literatura con el objetivo de sintetizar la contribución de las investigaciones llevadas a cabo en relación a los modos de enfrentamiento de las personas en tratamiento hemodialítico. El levantamiento bibliográfico permitió la identificación de 12 artículos que conformaron la muestra del estudio. Los resultados señalaron que los modos de enfrentamiento centrados en el problema son más utilizados y que la depresión se correlacionó positivamente con los modos de enfrentamiento enfocados en la emoción para personas en tratamiento hemodialítico. La identificación de los modos de enfrentamiento constituye información valiosa para planificar el tratamiento individualizado que proporcione control de los estresores inherentes a la enfermedad y al tratamiento hemodialítico, favoreciendo una mejor adaptación del paciente al régimen terapéutico.An integrative literature review was performed with the purpose to synthesize the contribution brought by research on the ways that people on hemodialysis deal with the treatment. Through a bibliographic review, 12 articles were identified, which composed

The bacterial population adherent to plant particles in the rumen of reindeer fed lichen, timothy hay or silage

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Monica Alterskjær Olsen

1998-02-01

Full Text Available Male reindeer (Rangifer tarandus tarandus calves taken from a natural winter pasture were given ad lib. access to lichen (n = 3, timothy silage (n = 3 and hay (n = 3 for 7 weeks. Median numbers of viable anaerobic bacteria adherent to the plant particles (cells/g wet weight of rumen solids, growing on a habitat simulating medium (M8V, were significantly higher (P = 0.05 in the rumen of reindeer fed lichen (26.5 x 109- 53.0 x 109 and hay (4.0 x 109- 40.5 x 109, compared to reindeer fed silage (1.15 x 109 - 3.25 x 109. Anaerobic bacterial strains (n = 551 from the plant particles obtained from the rumen of the nine reindeer examined, were isolated using an acid swollen cellulose medium (M8SC and tested for their ability to hydrolyse carboxymethyl cellulose (CMC. The proportion of CMC hydrolysing adherent bacteria isolated from M8SC was significantly higher in reindeer fed hay (21.5% compared ro animals fed lichen (5.3% and silage (2.7% (P = 0.05. The CMC hydrolysing bacterial srrains (n=42 isolated from reindeer fed hay where characterised as non-cellulolytic Butyrivibrio fibrisolvens (9.5%, cellulolytic B. fibrisolvens (50.0%, Clostridium sp. (2.4% and unknowns (38.1%, while CMC hydrolysing strains (n=11 isolated from animals fed lichen and strains (n=4 isolated from animals fed silage where all characterised as B. fibrisolvens. None of the bacterial strains isolated from the rumen solids of reindeer fed lichen or silage were found to be cellulolytic. This study suggests that both lichen and timothy silage have a negative influence, compared to hay, on the numbers of cellulolytic bacteria adherent to the plant particles in the rumen of reindeer.

75 FR 26945 - International Education Programs Service-Fulbright-Hays Group Projects Abroad Program

Science.gov (United States)

2010-05-13

.... Schools and/or departments of education have a role to play in creating greater exposure since they are... DEPARTMENT OF EDUCATION International Education Programs Service--Fulbright-Hays Group Projects... Postsecondary Education, Department of Education. ACTION: Notice of proposed priorities. SUMMARY: The Assistant...

Effect of inclusion of oyster mushroom substrate on the in vitro fermentation kinetics of Brachiaria brizantha hay

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Ricardo da Silva Oliveira

2015-07-01

Full Text Available The objective of this study was to evaluate the effect of inclusion of exhausted substrate of Pleurotus ostreatus on the in vitro fermentation of Brachiaria brizantha hay-based diets. The experiment was conducted using the semi-automated gas production technique. The ruminal inoculum was collected from three fistulated cattle kept on Brachiaria brizantha pasture. Brachiaria brizantha hay and exhausted substrate of Pleurotus production were used for composition of the diets: ES (100% exhausted substrate, BH (100% Brachiaria brizantha hay, ES5 (5% ES + 95% BH, ES20 (20% ES + 80% BH, and ES30 (30% ES + 70% BH. The experimental design was a 5x3 factorial scheme consisting of five treatments and three ruminal inocula. The degradation kinetics of dry matter (DM was determined after 96 hours of fermentation [D (96h]. No significant differences in the cumulative volume of gas (A were observed between BH (262.6 mL/g DM, ES5 (284.3 mL/g MS, ES20 (256.6 mL/g MS and ES30 (261.7 mL/g MS, indicating that inclusion of the substrate did not affect hay fermentation. A lower gas volume (165.9 mL and lower degradability (52% were observed for the ES diet, showing a lower nutritional value of this substrate compared to Brachiaria brizantha hay, probably due to the action of enzymes that degrade structural carbohydrates found in the mycelia of Pleurotus. The ES diet exhibited a shorter colonization time (L=2.6 h; P<0.05, a finding that may be attributed to the interaction between the mycelium and substrate, facilitating initial colonization. The inclusion of exhausted substrate did not increase microbial growth or degradation compared to the BH diet, but seems to have favored initial colonization of this substrate. The use of ES does not negatively affect colonization and may be used as an ingredient of ruminant diets.

José Sacristán: Las puertas abiertas de América Latina

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Consuelo Benítez

2015-01-01

Full Text Available José Sacristán prestigioso actor español en la película "En un lugar del mundo" (1991 del director Adolfo Aristaraín apuesta por Latinoamérica, señala que allí hay futuro hay un modo de entender la vida con más esperanza, es una puerta abierta al futuro. La solidaridad, la honradez y la dignidad humana toman cuerpo en este filme. La cinta argentina recibió la Concha de Oro, en el Festival de San Sebastián.

La educación intercultural en España y en Suiza : un enfoque comparativo

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Ferrán Ferrer

2000-01-01

Full Text Available El artículo que se presenta tiene como objetivo describir, analizar y comparar el tratamiento que se le da a la educación intercultural en los sistemas educativos de los dos países. Ambos tienen una realidad política, social y cultural similar en ciertos aspectos mientras que en otros son claramente djferentes. Una estructura político-administrativa descentralizada y su diversidad lingüística constituyen elementos comunes. Por otra parte, la presencia de alumnos de minorías culturales provenientes de otros países tienen un reflejo distinto en ambos países: en Suiza hay un porcentaje mucho más elevado que en España y en Cataluna; sin embargo en estos dos territorios hay una presencia de alumnos gitanos muchos más elevada que en Suiza. Entre otras conclusiones se señala la necesidad de vincular la educación intercultural a las problemáticas de exclusión y marginación social, debiendo convertir la primera en un instrumento estratégico de primera magnitud para combatir la segunda situación. 

Asthma, hay fever, and food allergy are associated with caregiver-reported speech disorders in US children.

Science.gov (United States)

Strom, Mark A; Silverberg, Jonathan I

2016-09-01

Children with asthma, hay fever, and food allergy may have several factors that increase their risk of speech disorder, including allergic inflammation, ADD/ADHD, and sleep disturbance. However, few studies have examined a relationship between asthma, allergic disease, and speech disorder. We sought to determine whether asthma, hay fever, and food allergy are associated with speech disorder in children and whether disease severity, sleep disturbance, or ADD/ADHD modified such associations. We analyzed cross-sectional data on 337,285 children aged 2-17 years from 19 US population-based studies, including the 1997-2013 National Health Interview Survey and the 2003/4 and 2007/8 National Survey of Children's Health. In multivariate models, controlling for age, demographic factors, healthcare utilization, and history of eczema, lifetime history of asthma (odds ratio [95% confidence interval]: 1.18 [1.04-1.34], p = 0.01), and one-year history of hay fever (1.44 [1.28-1.62], p speech disorder. Children with current (1.37 [1.15-1.59] p = 0.0003) but not past (p = 0.06) asthma had increased risk of speech disorder. In one study that assessed caregiver-reported asthma severity, mild (1.58 [1.20-2.08], p = 0.001) and moderate (2.99 [1.54-3.41], p speech disorder; however, severe asthma was associated with the highest odds of speech disorder (5.70 [2.36-13.78], p = 0.0001). Childhood asthma, hay fever, and food allergy are associated with increased risk of speech disorder. Future prospective studies are needed to characterize the associations. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Comportamento à Fractura em Modo II do Tecido Ósseo Cortical

OpenAIRE

Costa, Jorge Teixeira da

2009-01-01

Dissertação de Mestrado em Engenharia Mecânica A Mecânica da Fractura surge como uma ferramenta essencial para avaliar a “qualidade do tecido ósseo”, tendo esta Dissertação como objectivo contribuir para o conhecimento sobre o comportamento à fractura do tecido ósseo cortical de fémur de bovino, nas condições de carga em modo II e para o sistema de propagação TL. A ênfase foi colocada nos métodos de ensaio mais adequados para o tecido ósseo cortical. Para o efeito, foram analisados os segu...

The effect of a hay grid feeder on feed consumption and measurement of the gastric pH using an intragastric electrode device in horses: a preliminary report.

Science.gov (United States)

Aristizabal, F; Nieto, J; Yamout, S; Snyder, J

2014-07-01

Obesity and gastric ulceration are highly prevalent in horses. Management modifications for preventing squamous gastric ulceration include frequent feeding and free access to pasture; however, these practices may predispose horses to obesity. To compare the percentage of hay consumed, intragastric pH and horse activity between feeding from the ground and a hay grid feeder. Crossover experimental study. A pH electrode was inserted into the stomach to record the intragastric pH for 48 h. Horses received 1% of their body weight in grass hay twice a day. Horses were assigned to be fed from the ground or a commercial hay grid feeder for 24 h and then switched to the opposite protocol for an additional 24 h. Horses were continuously video-recorded and the percentage of time spent eating or drinking, walking or standing, and lying down were calculated. Two point data were compared by paired t test and pH over time was compared by repeated measures ANOVA. Horses consumed significantly greater amounts of grass hay when fed on the ground compared with a hay grid feeder (n = 9; PpH values (n = 6; P = 0.97), mean intragastric pH over time (n = 6; P = 0.45) the length of time the pH was below 4.0 (n = 6; P = 0.54), and the percentage of time horses spent eating or drinking (n = 9; P = 0.52), walking or standing (n = 9; P = 0.3), or lying down (n = 9; P = 0.4). Within each group horses spent more time eating during the day compared with the night (n = 9; hay grid feeder P = 0.003; ground feeding P = 0.007). The hay grid feeder studied may be used to reduce the amount of hay ingested by horses without reducing the time horses spend eating. © 2013 EVJ Ltd.

MUCHO Y MUY BUEN VINO. PRODUCCIÓN VITIVINÍCOLA EN LA ZONA NORTE DE SANTIAGO (SIGLOS XVI -XVIII

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Carlos Ruiz Rodríguez

2011-10-01

Full Text Available En la zona norte de Santiago (sectores de la Chimba, Renca, Conchalí, El Salto, Quilicura, se comenzó a producir desde poco después de la conquista española, “mucho y muy buen vino”. Se reseña el origen y particularidades de esta producción vinícola durante el período colonial. Se reconstruye un cuadro descriptivo de la viñatería colonial en la zona, junto con analizar los aspectos económicos: la evolución de la infraestructura productiva, el tipo de predios dedicados a la producción de vino, el precio de los suelos y de las plantas de viña, el uso de mano de obra (asalariada, servil y esclava y el impacto del establecimiento del régimen colonial y del consumo de alcohol en la población indígena.

The HayWired earthquake scenario—Engineering implications

Science.gov (United States)

Detweiler, Shane T.; Wein, Anne M.

2018-04-18

The HayWired Earthquake Scenario—Engineering Implications is the second volume of U.S. Geological Survey (USGS) Scientific Investigations Report 2017–5013, which describes the HayWired scenario, developed by USGS and its partners. The scenario is a hypothetical yet scientifically realistic earthquake sequence that is being used to better understand hazards for the San Francisco Bay region during and after a magnitude-7 earthquake (mainshock) on the Hayward Fault and its aftershocks.Analyses in this volume suggest that (1) 800 deaths and 16,000 nonfatal injuries result from shaking alone, plus property and direct business interruption losses of more than $82 billion from shaking, liquefaction, and landslides; (2) the building code is designed to protect lives, but even if all buildings in the region complied with current building codes, 0.4 percent could collapse, 5 percent could be unsafe to occupy, and 19 percent could have restricted use; (3) people expect, prefer, and would be willing to pay for greater resilience of buildings; (4) more than 22,000 people could require extrication from stalled elevators, and more than 2,400 people could require rescue from collapsed buildings; (5) the average east-bay resident could lose water service for 6 weeks, some for as long as 6 months; (6) older steel-frame high-rise office buildings and new reinforced-concrete residential buildings in downtown San Francisco and Oakland could be unusable for as long as 10 months; (7) about 450 large fires could result in a loss of residential and commercial building floor area equivalent to more than 52,000 single-family homes and cause property (building and content) losses approaching $30 billion; and (8) combining earthquake early warning (ShakeAlert) with “drop, cover, and hold on” actions could prevent as many as 1,500 nonfatal injuries out of 18,000 total estimated nonfatal injuries from shaking and liquefaction hazards.

Shared genetic origin of asthma, hay fever and eczema elucidates allergic disease biology

NARCIS (Netherlands)

Ferreira, Manuel A; Vonk, Judith M; Baurecht, Hansjörg; Marenholz, Ingo; Tian, Chao; Hoffman, Joshua D; Helmer, Quinta; Tillander, Annika; Ullemar, Vilhelmina; van Dongen, Jenny; Lu, Yi; Rüschendorf, Franz; Esparza-Gordillo, Jorge; Medway, Chris W; Mountjoy, Edward; Burrows, Kimberley; Hummel, Oliver; Grosche, Sarah; Brumpton, Ben M; Witte, John S; Hottenga, Jouke-Jan; Willemsen, Gonneke; Zheng, Jie; Rodríguez, Elke; Hotze, Melanie; Franke, Andre; Revez, Joana A; Beesley, Jonathan; Matheson, Melanie C; Dharmage, Shyamali C; Bain, Lisa M; Fritsche, Lars G; Gabrielsen, Maiken E; Balliu, Brunilda; Nielsen, Jonas B; Zhou, Wei; Hveem, Kristian; Langhammer, Arnulf; Holmen, Oddgeir L; Løset, Mari; Abecasis, Gonçalo R; Willer, Cristen J; Arnold, Andreas; Homuth, Georg; Schmidt, Carsten O; Thompson, Philip J; Martin, Nicholas G; Duffy, David L; Novak, Natalija; Boomsma, Dorret I

2017-01-01

Asthma, hay fever (or allergic rhinitis) and eczema (or atopic dermatitis) often coexist in the same individuals, partly because of a shared genetic origin. To identify shared risk variants, we performed a genome-wide association study (GWAS; n = 360,838) of a broad allergic disease phenotype that

Intake and ingestive behavior of lambs fed diets containing ammoniated buffel grass hay.

Science.gov (United States)

Perazzo, Alexandre Fernandes; de Paula Homem Neto, Sansão; Ribeiro, Ossival Lolato; Santos, Edson Mauro; de Carvalho, Gleidson Giordano Pinto; de Oliveira, Juliana Silva; Bezerra, Higor Fábio Carvalho; Campos, Fleming Sena; de Freitas Junior, José Esler

2017-04-01

This study aimed to evaluate the effect of diets with ammoniated buffel grass hay on the ingestive behavior of feedlot lambs. Thirty-two sheep of no defined breed with an average body weight of 17.7 ± 1.8 kg were used. A completely randomized design with four treatments (0, 18, 36, and 54 g/kg dry matter (DM) basis) and eight repetitions was used. Ingestive behavior, rumination, and idle time were similar (P > 0.05) among the diets containing ammoniated buffel grass hay, with mean values of 294.5, 554.44, and 594.25 min per day, respectively. Regarding the chews, all of the variables resulted in similar behavior (P > 0.05). The quadratic effect (P  0.05) on the efficiency of DM and NDF consumption. However, the rumination efficiency of DM and NDF showed a quadratic effect (P ingestive behavior by increasing the rumination efficiency, increased intake, and feed utilization.

Editorial: El curriculum médico y el trabajo profesional

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Antonio Ramirez Soto

1986-07-01

Full Text Available Es posible que haya pocos empleos para médicos, pero lo que sí es cierto es que hay mucho trabajo para el profesional de la medicina. Del desempleo médico obedece entre otras causas, fundamentalmente a la calidad del egresado. No se trata de un problema meramente de orden cuantitativo en el simple sentido de gran oferta y poca demanda.

CHANGES OF IMMUNE INDEXES DURING SUBLINGUAL ALLERGEN-SPECIFIC IMMUNOTHERAPY IN CHILDREN WITH HAY FEVER

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I. M. Gaiduk

2013-01-01

Full Text Available Aims of study: evaluation of immunological parameters in course of sublingual allergen-specific immunotherapy with tree pollen mixture in children with hay fever.Materials and methods: the study included one-hundred patients 5 to 18 years of age with hay fever (pollen rhinitis, rhinoconjunctivitis and/or asthma. Allergen-specific immunotherapy was administered pre-seasonally for three consecutive years. Cytokinechanges were studied in blood serum and in lavages from nasal cavity. Samples assessed before treatment and after 2nd and 3rd courses SLIT completion.Results: increased serum concentrations of IL-10, IFNγ, and decreased IL-4 contents were revealed in the course of treatment. No significant changes in cytokineconcentrations were detectable in nasal lavages.Conclusions: the changes revealed correspond to a shift of T cell response profile towards Th1 pathway, thus confirming pathogenetic effects of sublingual allergen-specific

Ron Hays: A Story of Art as Self Treatment for Alzheimer's Disease

Science.gov (United States)

Jones, Robin M. N.; Hays, Nancy Scheller

2016-01-01

Ronald E. Hays is the former Director of the Hahnemann Creative Arts in Therapy Department at Drexel University in Philadelphia, Pennsylvania, and the cofounder of the graduate art therapy program at Eastern Virginia Medical School in Norfolk, Virginia. At the age of 62 he was diagnosed with early onset Alzheimer's disease, a form of dementia. In…

Effects of alfalfa germplasm and stage of maturity on digestive process and productive response of dairy cows fed alfalfa hay-based diets

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Igino Andrighetto

2010-01-01

Full Text Available The effects on the digestive process and the productive performances of dairy cows fed diets containing alfalfa hay from  different germplasms and maturity were assessed in the present study. Three different lots of first-cut alfalfa hay were  used in the study: the improved variety “Boreal”, harvested at two consecutive maturity stages (early flowering and full  flowering and the ecotype “Vogherese”, at full flowering. Cutting the plant at an earlier stage of maturity improved hay  quality in comparison with the more mature forages (crude protein: 21.4 vs 16.5% DM; P  DM; P  er lignin content for the latter (8.6 vs 8.2% DM; P  tating cows were formulated using an equal amount of corn silage and the maximum inclusion of one of the tested hays  as forage base. The better quality of the early cut hay made it possible to increase its inclusion in the diet up to 44% of  total dietary DM, while the two more mature hays covered only 36% of total DM of the respective diets. According to a  3 x 3 Latin square design, the diets were fed to 3 Italian Brown cows (initial average days in milk 121 ± 24 and milk  yield 20 kg ± 1.3 fitted with ruminal cannula in 3 consecutive periods of 28 d each. Alfalfa stage of maturity and  germplasm did not affect dietary DM intake (average 16 kg/d. Degradability parameters of dietary DM, calculated by in  situ nylon bags technique, showed similar kinetics of rumen disappearance for all diets. No differences were noticed in  the ruminal rate of passage of the solid phase among diets, while the liquid phase showed a slower rate of passage for  the early flowering hay diet. Consistent with the degradation process, the stage of maturity or the alfalfa germplasm did  not affect the rumen fluid data or the in vivo digestibility coefficients of the diets. Milk yield did not show any change due  to either alfalfa maturity or cultivar, while milk protein was lowered when cows received the early cut hay

Wheat straw, household waste and hay as a source of lignocellulosic biomass for bioethanol and biogas production

DEFF Research Database (Denmark)

Tomczak, Anna; Bruch, Magdalena; Holm-Nielsen, Jens Bo

2010-01-01

To meet the increasing need for bioenergy three lignocellulosic materials: raw hay, pretreated wheat straw and pretreated household waste were considered for the production of bioethanol and biogas. Several mixtures of household waste supplemented with different fractions of wheat straw and hay...... in fermentation process with Saccharomyces cerevisiae were investigated. Wheat straw and household wastes were pretreated using IBUS technology, patented by Dong Energy, which includes milling, stem explosion treatment and enzymatic hydrolysis. Methane production was investigated using stillages, the effluents...... from bioethanol fermentation experiment. Previous trial of biogas production from above mentioned household wastes was enclosed....

Effect of feeding selenium-fertilized alfalfa hay on performance of weaned beef calves.

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Jean A Hall

Full Text Available Selenium (Se is an essential micronutrient in cattle, and Se-deficiency can affect morbidity and mortality. Calves may have greater Se requirements during periods of stress, such as during the transitional period between weaning and movement to a feedlot. Previously, we showed that feeding Se-fertilized forage increases whole-blood (WB Se concentrations in mature beef cows. Our current objective was to test whether feeding Se-fertilized forage increases WB-Se concentrations and performance in weaned beef calves. Recently weaned beef calves (n = 60 were blocked by body weight, randomly assigned to 4 groups, and fed an alfalfa hay based diet for 7 wk, which was harvested from fields fertilized with sodium-selenate at a rate of 0, 22.5, 45.0, or 89.9 g Se/ha. Blood samples were collected weekly and analyzed for WB-Se concentrations. Body weight and health status of calves were monitored during the 7-wk feeding trial. Increasing application rates of Se fertilizer resulted in increased alfalfa hay Se content for that cutting of alfalfa (0.07, 0.95, 1.55, 3.26 mg Se/kg dry matter for Se application rates of 0, 22.5, 45.0, or 89.9 g Se/ha, respectively. Feeding Se-fertilized alfalfa hay during the 7-wk preconditioning period increased WB-Se concentrations (P Linear<0.001 and body weights (P Linear = 0.002 depending upon the Se-application rate. Based upon our results we suggest that soil-Se fertilization is a potential management tool to improve Se-status and performance in weaned calves in areas with low soil-Se concentrations.

Comparison of hay and haylage from permanent Alpine meadows in winter dairy cow diets.

Science.gov (United States)

Borreani, G; Giaccone, D; Mimosi, A; Tabacco, E

2007-12-01

In an Alpine environment, diets based on local forage resources are needed to maintain the link with the territory and confer special characteristics to typical cheeses. Harvesting at a late stage of maturity, high mechanical losses, and frequent rainfall often make the hay that is harvested of a poor quality. The aim of this study was to evaluate the effects of 2 different conservation methods (late hay, LH, vs. early haylage, ES) of natural permanent meadows on milk production in dairy cows, on the chemical and microbiological characteristics of the milk, and on the quality of the cheese over the winter period. Haylage and hay were harvested from the same permanent meadow at the Vittorino Vezzani experimental farm in Sauze d'Oulx (45 degrees 02'N, 6 degrees 53'E, Italy). The ES forage was cut 4 wk earlier than traditional hay, wilted for 30 h, baled at a dry matter (DM) content of about 50%, wrapped with 6 layers of stretch film, and stored in a protected area. The LH forage was harvested later, when the weather conditions were favorable and, after a 3-d wilting, it was baled and stored indoors. After an 8-mo storage period, the ES had a greater crude protein concentration, organic matter digestibility, and net energy for lactation than LH and a lower neutral detergent fiber and acid detergent fiber. Forty multiparous lactating Aosta Red Pied cows were used in a 19-d period crossover design to assess the nutritional value of the stored forages. The diets included ES fed ad libitum and 3.5 kg of DM per cow of concentrate or LH fed ad libitum and 5.1 kg of DM per cow of concentrate. The dietary DM was 90.1% for the LH and 59.9% for the ES. The diets contained 12.6 and 13.0% crude protein and 48.6 and 48.0% neutral detergent fiber, for the LH and ES, respectively. The forage intake was greater in the ES treatment than in the LH treatment. The ES treatment produced more milk (1.7 kg/d) and more 3.5% fat-corrected milk (1.5 kg/d) than the cows on the LH treatment. The

Mental health associations with eczema, asthma and hay fever in children: a cross-sectional survey.

Science.gov (United States)

Hammer-Helmich, Lene; Linneberg, Allan; Obel, Carsten; Thomsen, Simon Francis; Tang Møllehave, Line; Glümer, Charlotte

2016-10-14

This study aimed to examine the association of eczema, asthma and hay fever with mental health in a general child population and to assess the influence of parental socioeconomic position on these associations. We conducted a cross-sectional health survey of children aged 3, 6, 11 and 15 years in the City of Copenhagen, Denmark. Individual questionnaire data on eczema, asthma, and hay fever and mental health problems assessed using the Strengths and Difficulties Questionnaire (SDQ) was linked to register data on demographics and parental socioeconomic position. 9215 (47.9%) children were included in the analyses. Linear regression analyses showed that children with current eczema symptoms had higher SDQ scores (mean difference, 95% CI) of emotional problems (0.26, 0.12 to 0.39), conduct problems (0.19, 0.09 to 0.29) and hyperactivity problems (0.32, 0.16 to 0.48); children with current asthma symptoms had higher SDQ scores of emotional problems (0.45, 0.32 to 0.58), conduct problems (0.28, 0.18 to 0.38) and hyperactivity problems (0.52, 0.35 to 0.69); and children with current hay fever symptoms had higher SDQ scores of emotional problems (0.57, 0.42 to 0.72), conduct problems (0.22, 0.11 to 0.33), hyperactivity problems (0.44, 0.26 to 0.61) and peer problems (0.14, 0.01 to 0.26), compared with children without current symptoms of the relevant disease. For most associations, parental socioeconomic position did not modify the effect. Children with eczema, asthma or hay fever had more emotional, conduct and hyperactivity problems, but not peer problems, compared with children without these diseases. Atopic diseases added equally to the burden of mental health problems independent of socioeconomic position. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

The HayWired Scenario - How Can the San Francisco Bay Region Bounce Back Better?

Science.gov (United States)

Hudnut, K. W.; Wein, A. M.; Cox, D. A.; Perry, S. C.; Porter, K.; Johnson, L. A.; Strauss, J. A.

2017-12-01

The HayWired scenario is a hypothetical yet scientifically realistic and quantitative depiction of a moment magnitude (Mw) 7.0 earthquake occurring on April 18, 2018, at 4:18 p.m. on the Hayward Fault in the east bay part of the San Francisco Bay area, California. The hypothetical earthquake has its epicenter in Oakland, and strong ground shaking from the scenario causes a wide range of severe impacts throughout the greater bay region. In the scenario, the Hayward Fault is ruptured along its length for 83 kilometers (about 52 miles). Building on a decades-long series of efforts to reduce earthquake risk in the SF Bay area, the hypothetical HayWired earthquake is used to examine the well-known earthquake hazard of the Hayward Fault, with a focus on newly emerging vulnerabilities. After a major earthquake disaster, reestablishing water services and food-supply chains are, of course, top priorities. However, problems associated with telecommunication outages or "network congestion" will increase and become more urgent as the bay region deepens its reliance on the "Internet of Things." Communications at all levels are crucial during incident response following an earthquake. Damage to critical facilities (such as power plants) from earthquake shaking and to electrical and telecommunications wires and fiber-optic cables that are severed where they cross a fault rupture can trigger cascading Internet and telecommunications outages, and restoring these services is crucially important for emergency-response coordination. Without good communications, emergency-response efficiency is reduced, and as a result, life-saving response functions can be compromised. For these reasons, the name HayWired was chosen for this scenario to emphasize the need to examine our interconnectedness and reliance on telecommunications and other lifelines (such as water and electricity). Earthquake risk in the SF Bay area has been greatly reduced as a result of previous concerted efforts; for

Modos de vida entre las élites porfirianas en la ciudad de La Paz, México

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Edith González Cruz

2017-01-01

Full Text Available El presente trabajo tiene como objetivo explicar los modos de vida entre las élites de la ciudad de La Paz, Baja California Sur, México, durante la época porfiriana, a partir de tres aspectos de la cultura material: vivienda, alimento y vestido. Se parte de la idea de que la actividad comercial coadyuvó a la modernidad, entendida como el cambio en los patrones de consumo que devino un nuevo comportamiento cultural en los modos de vida de los sectores sociales más acomodados, que se distinguió por el lujo y confort, cuyo referente fue la capital francesa, considerada el símbolo de la cultura universal. La estrategia para promover ese cambio se centró en el diseño arquitect ónico de los edificios que albergaban las tiendas, en la organización departamental de éstas y la publicidad en la prensa local.

The influence of feedback on hay pastures. | N.F.G. | African Journal ...

African Journals Online (AJOL)

The feeding of hay to sheep or cattle on an Eragrostis curvula pasture during the winter months has a most beneficial effect on the response of the pasture to fertilization in subsequent seasons. Low rates of feedback (10 t/ha) had an effect for two seasons whilst the effect of 30 t/ha lasted for at least three seasons and was ...

Interaction of bale size and preservative rate for large-round bales of alfalfa hay

Science.gov (United States)

Recently, two studies conducted at the US Dairy Forage Research Center have reported inconsistent storage responses following the application of propionic-acid-based preservatives to alfalfa or alfalfa-orchardgrass hays. One of these studies utilized 5-foot-diameter round bales, and produced disappo...

La genericidad del poema extenso: hacia una clasificación de sus modos de expresión

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Juan José Rastrollo Torres

2017-02-01

Full Text Available La tendencia a una estricta delimitación de los géneros literarios, la precisa y reguladora elaboración de un canon genérico heredada del Clasicismo y, en otro sentido, la actual tendencia a la disolución vertiginosa de un estatuto genérico precisan de una reformulación. Este artículo –en la línea de investigación de lo que Hans-Robert Jauss denominaba “horizonte de expectativas” del texto– procura hallar un espacio de encuentro entre la autonomía de la obra literaria (en nuestro caso, el poema extenso moderno y la tradicional normativa histórica de los géneros literarios para de comprender y acercarnos a muchos poemas largos carentes de “horizonte de expectativas”. En otros términos, propone disipar su indefinición genérica. Por otra parte, el objetivo de nuestro estudio será caracterizar esta nueva modalidad lírica de amplio respiro por sus criterios ontológicos, determinar sus rasgos de genericidad y debatir las posibilidades de clasificación de muchos de estos textos hispánicos y universales reacios a toda definición y situados en el limbo de los géneros tradicionales.

Dos modos de situarse en el lugar : Monticello de Thomas Jefferson y Taliesin de F. Lloyd Wright

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Juan Antonio Cortés

2012-12-01

Full Text Available

Resumen

El artículo consiste en una descripción comparada de dos edificios: Monticello ‐la casa que Thomas Jefferson construyó para sí mismo en Virginia‐ y Taliesin ‐la casa y estudio de Frank Lloyd Wright en Wisconsin‐. El texto estudia en primer lugar las fuentes arquitectónicas y la evolución del proyecto de Monticello, para centrarse después en la explicación de Taliesin. Hay una cierta similitud en el modo en que Monticello y las casas de  Wright ‐en concreto la Ward Willitts‐ se extienden  horizontalmente en el terreno y, volviendo a Taliesin, la tesis  principal del texto es que tanto la residencia de Jefferson como la de Wright se asientan sobre una colina, pero Monticello  ‘corona’ su cima, mientras que Taliesin la bordea, se sitúa como  una ‘ceja’ respecto a la misma. En definitiva, de este  último edificio se puede afirmar que es una ‘casa natural’, que  logra una plena integración entre arquitectura y naturaleza.

Palabras clave

casa, proyecto, evolución, corona, natural

Abstract

This article consists of a comparative description of two buildings: Monticello, Thomas Jefferson’s residence which he  built for himself in Virginia, and Taliesin, the studio and home of Frank Lloyd Wright in Wisconsin. First, the text studies the  architectural references and evolution of the project for  Monticello, in order to later focus on explaining Taliesin. There is a certain similarity in the way that Monticello and Wright’s  houses (especially the Ward Willits House extend horizontally  across the land. The thesis of this article is that both Jefferson’s and Wright’s residences rest upon a hill, but Monticello crowns  the top while Taliesin borders it like an eyebrow. In conclusion, we can say that Taliesin is a “natural house”, which manages to fully integrate its architecture with nature

Effects of a propionic acid-based preservative on storage characteristics, nutritive value, and energy content for alfalfa hays packaged in large, round bales

Science.gov (United States)

During 2009 and 2010, alfalfa (Medicago sativa L.) hays from two cuttings that were harvested from the same field site were used to evaluate the effects of a propionic acid-based preservative on the storage characteristics and nutritive value of hays stored as large, round bales. A total of 87 large...

Clima organizacional: un modo eficaz para dirigir los servicios de salud Climas organizacional: um modo eficaz para dirigir os serviços de saúde Organizational climate: an efficient way to conduct health services

Directory of Open Access Journals (Sweden)

Arturo Alexánder Segura Massó

2012-01-01

Full Text Available Vemos como un gran reto en el sector salud de la Cuba de hoy, el modo en que se dirigen las organizaciones o instituciones y/o servicios de salud, partiendo de la concepción de un clima organizacional adecuado, para obtener de sus trabajadores el máximo nivel de compromiso con la tarea que realizan. Objetivo: enunciar consideraciones acerca de cómo el análisis y estudio del clima organizacional constituyen un modo eficaz de organización de la dirección en salud, para la búsqueda constante de la excelencia. El estudio e implementación de un adecuado clima organizacional en los servicios de salud favorece el desarrollo de cuatro elementos fundamentales dentro de cualquier organización del sector: la autoeficacia del trabajador, la satisfacción del paciente, la calidad del servicio prestado y la formación de recursos humanos en el subsistema de postgrado. Se concluye que el estudio del clima organizacional dentro de una institución o servicio de salud debe contribuir al establecimiento de relaciones armoniosas entre sus trabajadores, y como consecuencia se debe producir un aumento en la autoeficacia de estos en la satisfacción de la población que garantice la calidad del servicio de salud prestado. Por lo que se asevera que el análisis y estudio del clima organizacional de un servicio de salud son los modos más eficaces de dirigirlo.Consideramos que hoje o setor saúde em Cuba é um grande desafio. O modo em que as organizações ou instituições e/ ou serviços de saúde dirigem o setor, partindo da concepção de um clima organizacional adequado, para obter o máximo nível de compromisso com a tarefa que realizam seus trabalhadores. Objetivo: enunciar considerações sobre como a análise e o estudo do clima organizacional são um modo eficaz de organização da direção em saúde, para a busca constante da excelência. O estudo e implementação de um adequado clima organizacional nos serviços de saúde favorece o

Intake, Rumen Degradation and Utilisation of Urea-Ammoniated Grass Hay by Kacang Goats as Affected by Supplementation of Sun-dried Fish or Fishmeal

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MR Weibsjerg

2012-05-01

Full Text Available Six mature male Kacang goats were involved in an experiment arranged following a duplicate 3 x 3 Latin Square Design. The objectives of this experiment was to study the effect of supplementation of dried fish as compared to fishmeal on intake, digestion, rumen environment and nitrogen used by the local meat type Kacang goats maintained on urea-treated low quality grass hay. The treatments were G: goats were fed with ad libitum access of urea treated grass hay and 100 g/d putak, SDF: G plus 18.4 g sun dried fish, and FM: G plus 19.7 g/d fishmeal. The supplement in SDF and FM were at equal CP level. Intake of urea treated grass hay tended to increase (P=0.08 with supplementation. Dry matter digestibility particularly that of CP was improved by supplementation. Rumen environment was slightly modified by supplementation. Rumen pH was reduced while ammonia concentration was increased. Rumen degradation of the treated grass hay did not differ when incubated in the rumen of goats with different diets. Nitrogen balance was significantly improved (P<0.05 by fishmeal supplementation. In all parameters measured in this experiment, the incremental effects did not differ between fishmeal type. This indicate that there is no further advantage of preparing fishmeal other than sun-drying in improving the utilisation of low quality urea-treated grass hay.

Design and initial testing of a one-bladed 30-meter-diameter rotor on the NASA/DOE mod-O wind turbine

Science.gov (United States)

Corrigan, R. D.; Ensworth, C. B. F.

1986-01-01

The concept of a one-bladed horizontal-axis wind turbine has been of interest to wind turbine designers for many years. Many designs and economic analyses of one-bladed wind turbines have been undertaken by both United States and European wind energy groups. The analyses indicate significant economic advantages but at the same time, significant dynamic response concerns. In an effort to develop a broad data base on wind turbine design and operations, the NASA Wind Energy Project Office has tested a one-bladed rotor at the NASA/DOE Mod-O Wind Turbine Facility. This is the only known test on an intermediate-sized one-bladed rotor in the United States. The 15.2-meter-radius rotor consists of a tip-controlled blade and a counterweight assembly. A rigorous test series was conducted in the Fall of 1985 to collect data on rotor performance, drive train/generator dynamics, structural dynamics, and structural loads. This report includes background information on one-bladed rotor concepts, and Mod-O one-bladed rotor test configuration, supporting design analysis, the Mod-O one-blade rotor test plan, and preliminary test results.

Los trabajos del cronista cuatrocentista

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Robert Brian TATE

2009-12-01

Full Text Available Denis hay, profesor de historia en la Universidad de Edimburgo hasta su muerte, fue autor de muchos libros y editor de numerosos textos de historiadores humanistas tan diversos como Flavio Biondo y Polidoro Virgilio. En su Renaissance Essays ha llamado la atención sobre la manera en que la historiografía del quattrocento ha sido tratada por los críticos literarios y los historiadores profesionales.

Evaluation of methodological aspects of digestibility meaurements in ponies fed different grass hays

NARCIS (Netherlands)

Schaafstra, F.J.W.C.; Doorn, van D.A.; Schonewille, J.T.; Wartena, F.C.; Zoon, van M.; Blok, M.C.; Hendriks, W.H.

2015-01-01

Methodological aspects of digestibility measurements of feedstuffs for equines were studied in four Welsh pony geldings consuming four grass-hay diets in a 4 × 4 Latin square design. Diets contained either a low (L), medium (M), high (H), or very high (VH) ADF content (264, 314, 375, or 396 g·kg-1

Mixing and photoreactivity of dissolved organic matter in the Nelson/Hayes estuarine system (Hudson Bay, Canada)

Science.gov (United States)

Guéguen, C.; Mokhtar, M.; Perroud, A.; McCullough, G.; Papakyriakou, T.

2016-09-01

This work presents the results of a 4-year study (2009-2012) investigating the mixing and photoreactivity of dissolved organic matter (DOM) in the Nelson/Hayes estuary (Hudson Bay). Dissolved organic carbon (DOC), colored DOM, and humic-like DOM decreased with increasing salinity (r2 = 0.70-0.84). Removal of DOM was noticeable at low to mid salinity range, likely due to degradation and/or adsorption to particles. DOM photobleaching rates (i.e., decrease in DOM signal resulting from exposure to solar radiation) ranged from 0.005 to 0.030 h- 1, corresponding to half-lives of 4.9-9.9 days. Dissolved organic matter from the Nelson and Hayes Rivers was more photoreactive than from the estuary where the photodegradation of terrestrial DOM decreased with increasing salinity. Coincident with the loss of CDOM absorption was an increase in spectral slope S, suggesting a decrease in DOM molecular weight. Marked differences in photoreactivity of protein- and humic-like DOM were observed with highly humidified material being the most photosensitive. Information generated by our study will provide a valuable data set for better understanding the impacts of future hydroelectric development and climate change on DOM biogeochemical dynamics in the Nelson/Hayes estuary and coastal domain. This study will constitute a reference on terrestrial DOM fate prior to building additional generating capacity on the Nelson River.

Economic consequences of earthquakes: bridging research and practice with HayWired

Science.gov (United States)

Wein, A. M.; Kroll, C.

2016-12-01

The U.S. Geological Survey partners with organizations and experts to develop multiple hazard scenarios. The HayWired earthquake scenario refers to a rupture of the Hayward fault in the Bay Area of California and addresses the potential chaos related to interconnectedness at many levels: the fault afterslip and aftershocks, interdependencies of lifelines, wired/wireless technology, communities at risk, and ripple effects throughout today's digital economy. The scenario is intended for diverse audiences. HayWired analyses translate earthquake hazards (surface rupture, ground shaking, liquefaction, landslides) into physical engineering and environmental health impacts, and into societal consequences. Damages to life and property and lifeline service disruptions are direct causes of business interruption. Economic models are used to estimate the economic impacts and resilience in the regional economy. The objective of the economic analysis is to inform policy discourse about economic resilience at all three levels of the economy: macro, meso, and micro. Stakeholders include businesses, economic development, and community leaders. Previous scenario analyses indicate the size of an event: large earthquakes and large winter storms are both "big ones" for California. They motivate actions to reduce the losses from fire following earthquake and water supply outages. They show the effect that resilience can have on reducing economic losses. Evaluators find that stakeholders learned the most about the economic consequences.

Viga on öelda, et me ei vaja PRi / Roger Hayes, Alasdair Sutherland ; interv. Tiiu Värbu

Index Scriptorium Estoniae

Hayes, Roger

2001-01-01

Eesti Suhtekorraldajate Liidu 5. aastapäeva seminaril osalevad Rahvusvahelise Kommunikatsiooni Instituudi direktor R. Hayes ja maailma ühe juhtiva suhtekorraldusfirma Manning, Selvage & Lee asepresident A. Sutherland

Microbial load and phytochemicals stability of camel hay (Cymbopogon Schoenanthus L) leaves as affected by gamma irradiation

International Nuclear Information System (INIS)

Musa, H. A. A.; Ahmed, E. E.; Osman, G. A. M.; Ludwig-muller, J.

2010-01-01

The influence of gamma irradiation on microbial load and chemical quality of camel hay (Cymbopogon schoenanthus) leaves was evaluated at doses of 0, 5,10, and 15 kGy in a cobalt-60 package irradiator. The results revealed that, immediately after irradiation, gamma irradiation was found to cause significant reduction in microbial load proportionate to the doses delivered. TLC analysis indicated that irradiation of camel hay leaves extract with 15 kGy doses of gamma radiation had no effect on flavonoids concentrations, however, increase in total phenols and tannins was observed. In addition, the chemical constituents of camel hay leaves as represented by HPLC retention time (min) at different wave lengths showed that the compounds of retention time 8.42, 29.08, 8.38, 16.93, 14.80 and 42.80 min remained approximately unchanged, while the compound of retention times 16.95 min was eliminated. The compounds of retention times 9.66, 2.03 and 29.35 min were decreased from 16.56 to 11.77, 14.06 to 9.88 and 8.25 to 2.88 min respectively. An increase in the chemical constituents, was observed in the compounds of the retention times 14.37 and 35.42 min from 33.76 to 40.11 and 5.64 to 10.05, respectively. (Author)

A single dose desensitization for summer hay fever. Results of a double blind study-1988.

Science.gov (United States)

Fell, P; Brostoff, J

1990-01-01

A new type of desensitising vaccine, enzyme potentiated was subjected to a double-blind randomised study during the hay fever season. The vaccine is a convenient single injection given in March and the results show good protection throughout the grass pollen season.

Os fracassos necessários: Georges Perec e as taxonomias impossíveis de «A vida modo de usar»

Directory of Open Access Journals (Sweden)

Gustavo Silveira Ribeiro

2011-10-01

Full Text Available Resumo: Este artigo estuda as relações entre a estrutura narrativa do romance  A vida modo de usar ­– romances, de Georges Perec, e a crítica dos sistemas de classificação das coisas que é feita no livro. Através da análise de episódios e personagens da obra, bem como da leitura de todos os seus paratextos, objetivamos demonstrar como a utilização criativa que Perec faz de modelos taxonômicos como listas, catálogos, verbetes e índices se realiza de modo irônico. As exaustivas enumerações presentes em A vida modo de usar explicitam a insuficiência de qualquer sistema de classificação humano, uma vez que, ao invés de ordenar o romance, as listas apenas acentuam seu caráter caótico e inextricável.Palavras-chave: Georges Perec; A vida modo de usar; taxonomia; sistema de classificação.Resumen: Este artículo estudia las relaciones entre la estructura narrativa de la novela La vie mode d’emploi ­– romances, de Georges Perec, y la crítica de los sistemas de classificación de las coisas que aparece en el libro. A través del análisis de episódios y personajes de la obra y de la lectura de todos sus paratextos, tenemos el objetivo demostrar como la utilización creativa que Perec hace de modelos taxonómicos como listas, catálogos, verbotes e índices se realiza de modo irónico. Las innumerables enumeraciones presentes en La vie mode d’emploi muestran la insuficiencia de cualquier sistema de classificación humano, una vez que, en vez de ordenar la novela, las listas solamente acentúan su carácter caótico y confuso.Palabras-clave: Georges Perec; La vie mode d’emploi; taxonomía; sistema de classificación.Keywords: Georges Perec; La vie mode d’emploi; taxonomy; classification system.

Digestibility and performance of lambs fed diets containing old man saltbush hay

Directory of Open Access Journals (Sweden)

Greicy Mitzi Bezerra Moreno

2017-03-01

Full Text Available The aim of this study was to evaluate feed intake, digestibility, nitrogen balance, water balance, and performance of lambs fed diets containing old man saltbush hay associated with a concentrate. Thirty-two castrated feedlot Santa Inês lambs at approximately eight months of age, with 22 ± 1.97 kg body weight, were distributed into a completely randomized experimental design. Acid detergent fiber intake increased (P < 0.05, whereas non-fibrous carbohydrates intake decreased (P < 0.01. Inclusion of old man saltbush in the diet reduced (P < 0.01 the digestibility of dry and organic matter, neutral and acid detergent fiber, and non-fibrous carbohydrates. The intakes of digestible dry and organic matter, ether extract, total carbohydrates, and digestible non-fibrous carbohydrates also decreased (P < 0.01. Inclusion of old man saltbush did not influence water consumption from the trough by the sheep, averaging 4,327.20 mL/day?1. Body weight at slaughter and daily weight gain decreased linearly (P < 0.05 and feed conversion worsened as old man saltbush hay was added to the diet. Inclusion of old man saltbush at up to 40% replacing the concentrate in feedlot lamb diets does not compromise the performance of these animals.

Hay-Wells syndrome is caused by heterozygous missense mutations in the SAM domain of p63.

NARCIS (Netherlands)

McGrath, J.A.; Duijf, P.H.; Doetsch, V.; Irvine, A.D.; Waal, R.M.W. de; Vanmolkot, K.R.; Wessagowit, V.; Kelly, A.E.; Atherton, D.J.; Griffiths, W.A.; Orlow, S.J.; Haeringen, A. van; Ausems, M.G.E.M.; Yang, A.; McKeon, F.; Bamshad, M.; Brunner, H.G.; Hamel, B.C.J.; Bokhoven, J.H.L.M. van

2001-01-01

Hay-Wells syndrome, also known as ankyloblepharon-ectodermal dysplasia-clefting (AEC) syndrome (OMIM 106260), is a rare autosomal dominant disorder characterized by congenital ectodermal dysplasia, including alopecia, scalp infections, dystrophic nails, hypodontia, ankyloblepharon and cleft lip

Hay-Wells syndrome is caused by heterozygous missense mutations in the SAM domain of p63

NARCIS (Netherlands)

McGrath, JA; Duijf, PHG; Doetsch, [No Value; Irvine, AD; de Waal, R; Vanmolkot, KRJ; Wessagowit, [No Value; Kelly, A; Atherton, DJ; Griffiths, WAD; Orlow, SJ; van Haeringen, A; Ausems, MGEM; Yang, A; McKeon, F; Bamshad, MA; Brunner, HG; Hamel, BCJ; van Bokhoven, H

2001-01-01

Hay-Wells syndrome, also known as ankyloblepharon-ectodermal dysplasia-clefting (AEC) syndrome (OMIM 106260), is a rare autosomal dominant disorder characterized by congenital ectodermal dysplasia, including alopecia, scalp infections, dystrophic nails, hypodontia, ankyloblepharon and cleft lip

EFECTO DE LOS OBSTÁCULOS TIPO POLIMERO RESINA EN RENDIMIENTO DE REDES TCP/IP/IEEE 802.11g MODO AD-HOC

OpenAIRE

Márquez Barriobero, David

2011-01-01

La investigación tiene como objetivo primordial el desarrollo de un modelo matemático para evaluar el efecto de los obstáculos de tipo polímero resina en el rendimiento de redes TCP/IP/IEEE 802.11g modo ad-hoc; esto con el propósito de establecer la relación existente entre el diámetro de los obstáculos de tipo polímero resina y el rendimiento de una red inalámbrica en modo ad-hoc, al transmitir datos vía protocolo FTP. El tipo de investigación es explicativa con un diseño experimental. Los t...

1.8. Brand*, HA Badenhorst, FK 8iebrits and EH Kemm JP Hayes et ...

African Journals Online (AJOL)

Brand*, H.A. Badenhorst, F.K. 8iebrits and E.H. Kemm. Animal and Dairy Science Research Institute, Private Bag X2, Irene 1675, Republic of South Africa. J.P. Hayes. Department of Poultry Science, University of Stellenbosch, Stellenbosch 7600, Republic of South Africa. The experiment was conducted to compare the ...

Control mediante modos deslizantes en tiempo discreto para el seguimiento de trayectorias de un robot móvil1

Directory of Open Access Journals (Sweden)

P.A. Niño-Suárez

2007-10-01

Full Text Available Resumen: En este trabajo se presenta una estrategia de control en tiempo discreto para el seguimiento de trayectorias de un robot móvil tipo (2,0 controlado remotamente. La estrategia de control se desarrolló mediante un enfoque de modos deslizantes, considerando el modelo discreto exacto del vehículo en el cual se incluyen los efectos del retardo de transporte causado por la propagación de las señales sobre una red de comunicación. El esquema de control garantiza el seguimiento de trayectorias predeterminadas obteniéndose convergencia asintótica de los errores de seguimiento. La estrategia propuesta es evaluada mediante una serie de resultados por simulación. Palabras clave: Robot móvil, retardos de transporte, control en tiempo discreto, modos deslizantes

Musicoterapia en Mexico: Otro Estilo

OpenAIRE

Eugenia Hernandez-Ruiz

2005-01-01

La musicoterapia ha crecido exponencialmente en los últimos años en México. Existen varias corrientes, desde la humanista a la conductista, y nuevos programas se crean constantemente. Todavía hay mucho que hacer para llevar a la musicoterapia al nivel profesional de otros países. Este artículo comparte algunos avances recientes con la esperanza de que el intercambio profesional apoye el desarrollo futuro de la musicoterapia en México.

Digestibility of Buffel grass (Cenchrus ciliaris)-based diets supplemented with four levels of Gliricidia sepium hay in hair sheep lambs

DEFF Research Database (Denmark)

Avilés-Nieto, Jonathan N.; Valle-Cerdán, José L.; Castrejón-Pineda, Francisco

2013-01-01

The objective of this experiment was to evaluate the effect of supplementing increasing levels of Gliricidia sepium hay (GS) with different levels of inclusion of Buffel grass (BG) hay on digestibility by hair sheep lambs (2.5 to 3.5 months of age). Eight male lambs were used in a replicated 4 × 4...... were not affected by treatments. The intake of crude protein (CP), organic matter (OM), and gross energy was higher (P lambs fed with T4 diet than control. NDF and ADF digestibilities were higher (P

Associação entre os modos de enfrentamento e as variáveis sociodemográficas de pessoas em hemodiálise crônica

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Daniela Comelis Bertolin

2011-10-01

Full Text Available Este é um estudo seccional que objetiva verificar a associação entre os modos de enfrentamento das pessoas em hemodiálise crônica e as variáveis sociodemográficas. Foram utilizados um instrumento semiestruturado e o Inventário de Estratégias de Enfrentamento de Folkman e Lazarus. A amostra constituiu-se por 107 adultos, predominantemente do sexo masculino (62,4%, em hemodiálise ambulatorial há mais de seis meses. Os modos de enfrentamento mais referidos foram relacionados ao fator reavaliação positiva (enfrentamento focado na emoção; sendo que os escores médios mais elevados foram para as mulheres em todos os fatores e para as pessoas que expuseram ter companheiro, morar com familiares e ter apoio no tratamento; e foram comuns os maiores escores para os fatores confronto, autocontrole e suporte social. O conhecimento dos modos de enfrentamento prepara o enfermeiro para reforçar ou buscar, junto às pessoas em hemodiálise, a escolha de modos de enfrentamento positivos e propor ações que permitam o desenvolvimento dos mecanismos adaptativos do paciente.

Replacing cottonseed meal with ground Prosopis juliflora pods; effect on intake, weight gain and carcass parameters of Afar sheep fed pasture hay basal diet.

Science.gov (United States)

Yasin, Mohammed; Animut, Getachew

2014-08-01

The experiment was conducted to determine the supplementary feeding value of ground Prosopis juliflora pod (Pjp) and cottonseed meal (CSM) and their mixtures on feed intake, body weight gain and carcass parameters of Afar sheep fed a basal diet of pasture hay. Twenty-five yearling fat-tailed Afar rams with mean initial live weight 17.24 ± 1.76 kg (mean ± SD) were used in a randomized complete block design. Animals were blocked on their initial body weight. The experiment was conducted for 12 weeks and carcass evaluation followed. Treatments were hay alone ad libitum (T 1) or with 300 g CSM (T 2), 300 g Pjp (T 5), 2:1 ratio (T 3) and 1:2 ratio of CSM : Pjp (T 4). The CP contents of the hay, CSM and Pjp were 10.5, 44.5 and 16.7 %, respectively. Hay DM intake was higher (P < 0.05) for non-supplemented and total DM intake was lower in non-supplemented. Average daily weight gain (ADG) was lower (P < 0.05) for T 1 compared to all supplemented treatments except T 5. Hot carcass weight and rib-eye muscle area also followed the same trend like that of ADG. Compared with feeding hay alone, supplementing with CSM or a mixture of CSM and Pjp appeared to be a better feeding strategy, biologically, for yearling Afar rams.

Effect of early experience and adaptation period on voluntary intake, digestion, and growth in Barbarine lambs given tannin-containing (Acacia cyanophylla Lindl. foliage) or tannin-free (oaten hay) diets

Energy Technology Data Exchange (ETDEWEB)

Ben Salem, H. [Institut National de la Recherche Agronomique de Tunisie, Laboratoire des Productions Animales et Fourrageres, Ariana (Tunisia)]. E-mail: bensalem.hichem@iresa.agrinet.tn; Nefzaouia, A.; Ben Salem, I. [Institut National de la Recherche Agronomique de Tunisie, Laboratoire des Productions Animales et Fourrageres, Ariana (Tunisia); Makkar, H.P.S. [Animal Production and Health Section, Joint FAO/IAEA Division, International Atomic Energy Agency, Vienna (Austria); Hochlef, H. [Institut National de la Recherche Agronomique de Tunisie, Laboratoire des Productions Animales et Fourrageres, Ariana (Tunisia); Ecole Superieure d' Agriculture de Mateur, Mateur (Tunisia); Ben Salem, L. [Office de l' Elevage et des Paturages, Tunis (Tunisia)

2005-08-19

Our objective was to determine whether experience early in life and adaptation time (up to 72 days) to tannin-rich diets affect feed intake, digestion, nitrogen balance, and growth in Barbarine lambs given tannin-containing (Acacia cyanophylla Lindl., acacia) or tannin-free (oaten hay) diets later in life. Twelve experienced lambs (live-weight, LW: 13.2 {+-} 2.0 kg) were divided into two equal groups. Each group received air-dried acacia (tannin-containing diet) or oaten hay (hay, tannin free-diet) ad libitum. Twelve other inexperienced lambs (LW 12.3 {+-} 2.5 kg) were also divided into two equal groups. Each group received one of the above two diets. All animals were 4 months old at the start of this experiment and were supplemented with 300 g concentrate. To investigate the carry-over effect of tannins, the acacia-diet was removed on day 73, thus all lambs received thereafter the hay-diet for a further 24 days before starting a 6-day faecal collection period. Irrespective to early experience and adaptation time, the nutritive value of hay-diet was higher than that of acacia-diet and consequently lambs given hay performed better than those receiving acacia (P = 0.0001). Animals exposed to tannins early in life exhibited higher digestible crude protein intake (P = 0.0389), retained more N (P = 0.0963) and excreted more allantoin in urine (P = 0.0248) than the inexperienced lambs. Except plasma urea (P = 0.2923), the adaptation period to experimental diets affected significantly all measured parameters (P 0.0001). Animals adapted to diets for only 6 days exhibited the lowest acacia or hay intake and the highest diet digestibility compared to those adapted to these diets for 24, 48 or 72 days. Weight losses of inexperienced lambs adapted to acacia-diet for 6 days were associated with negative nitrogen balance. Sheep which received the acacia-diet, followed by the hay diet, had similar hay intake, diet digestibility, N balance and growth rate as compared to those

Effect of early experience and adaptation period on voluntary intake, digestion, and growth in Barbarine lambs given tannin-containing (Acacia cyanophylla Lindl. foliage) or tannin-free (oaten hay) diets

International Nuclear Information System (INIS)

Ben Salem, H.; Nefzaouia, A.; Ben Salem, I.; Makkar, H.P.S.; Hochlef, H.; Ben Salem, L.

2005-01-01

Our objective was to determine whether experience early in life and adaptation time (up to 72 days) to tannin-rich diets affect feed intake, digestion, nitrogen balance, and growth in Barbarine lambs given tannin-containing (Acacia cyanophylla Lindl., acacia) or tannin-free (oaten hay) diets later in life. Twelve experienced lambs (live-weight, LW: 13.2 ± 2.0 kg) were divided into two equal groups. Each group received air-dried acacia (tannin-containing diet) or oaten hay (hay, tannin free-diet) ad libitum. Twelve other inexperienced lambs (LW 12.3 ± 2.5 kg) were also divided into two equal groups. Each group received one of the above two diets. All animals were 4 months old at the start of this experiment and were supplemented with 300 g concentrate. To investigate the carry-over effect of tannins, the acacia-diet was removed on day 73, thus all lambs received thereafter the hay-diet for a further 24 days before starting a 6-day faecal collection period. Irrespective to early experience and adaptation time, the nutritive value of hay-diet was higher than that of acacia-diet and consequently lambs given hay performed better than those receiving acacia (P = 0.0001). Animals exposed to tannins early in life exhibited higher digestible crude protein intake (P = 0.0389), retained more N (P = 0.0963) and excreted more allantoin in urine (P = 0.0248) than the inexperienced lambs. Except plasma urea (P = 0.2923), the adaptation period to experimental diets affected significantly all measured parameters (P 0.0001). Animals adapted to diets for only 6 days exhibited the lowest acacia or hay intake and the highest diet digestibility compared to those adapted to these diets for 24, 48 or 72 days. Weight losses of inexperienced lambs adapted to acacia-diet for 6 days were associated with negative nitrogen balance. Sheep which received the acacia-diet, followed by the hay diet, had similar hay intake, diet digestibility, N balance and growth rate as compared to those offered

Electro-microscopic observations of liver lesions after intravenous inoculation of mouldy hay extracts.

Science.gov (United States)

Shadmi, A; Griffel, B

1985-01-01

With the aid of the electron microscope, a number of histopathological changes in the liver of mice caused by mycotoxins from mouldy hay were examined and studied. These changes were observed in the mitochondria, the cell nucleus, and the cell membranes, and included fatty and parenchymal degeneration, plasma granulation, vacuolisation and vesiculation, glycogen secretion, incorporation into RNA, karyolysis and karyolaxis, and space of Disse constriction.

Degradabilidade ruminal do feno de alguns alimentos volumosos para ruminantes Ruminal degradability of some roughage hays for ruminants feeding

Directory of Open Access Journals (Sweden)

G.G.P. Carvalho

2006-08-01

Full Text Available Avaliou-se a degradabilidade ruminal da matéria seca (MS, proteína bruta (PB, fibra em detergente neutro (FDN, da fibra em detergente ácido (FDA e hemicelulose dos fenos de capim-elefante (Pennisetum purpureum, palma (Opuntia ficus, guandu (Cajanus cajan e parte aérea da mandioca (Manihot esculenta utilizando três bovinos mestiços machos, castrados, canulados no rúmen e mantidos em regime de pasto. Amostras de 4g de cada alimento foram incubadas em duplicata no rúmen dos animais, nos períodos de 0, 6, 12, 24, 36, 48 e 72 horas. A degradabilidade potencial da PB dos fenos de capim-elefante e guandu foi semelhante, 83,9 e 81,2%, respectivamente. Os maiores valores foram observados para os fenos de palma (94,2% e parte aérea da mandioca (91,7%. A degradabilidade efetiva (DE foi obtida considerando as taxas de passagem de 2, 5 e 8%/hora. A maior DE observada para MS (60,5%, PB (81,1%, FDN (21,6%, FDA (27,9% e HEM (58,0%, na taxa de passagem de 5%/h, ocorreu com o feno de palma.The ruminal degradability of dry matter (DM, crude protein (CP, neutral detergent fiber (NDF, acid detergent fiber (ADF and hemicellulose (HEM of elephantgrass (Pennisetum purpureum, forage cactus (Opuntia ficus, pigeon pea (Cajanus cajan and cassava foliage (Manihot esculenta hays was evaluated using three cannulated crossbred steers, kept on pasture. Samples of four grams of each hay were incubated in the rumen for 0, 6, 12, 24, 36, 48 and 72 hours. The CP potential degradability (PD for elephantgrass and pigeon pea hays was similar, 83.9 and 81.2%, respectively. Higher values were observed either for forage cactus (94.2% or cassava foliage (91.7% hays. The effective degradability (ED was obtained considering the passage rates of 2, 5 and 8%/hour. The forage cactus hay, at a passage rate of 5%/h, showed the highest ED for DM (60.5%, CP (81.1%, NDF (21.6%, ADF (27.9% and HEM (58.0%.

A Systems Biology Approach Reveals Differences in the Dynamics of Colonization and Degradation of Grass vs. Hay by Rumen Microbes with Minor Effects of Vitamin E Supplementation

Directory of Open Access Journals (Sweden)

Alejandro Belanche

2017-08-01

Full Text Available Increasing the efficiency of utilization of fresh and preserved forage is a key target for ruminant science. Vitamin E is often used as additive to improve product quality but its impact of the rumen function is unknown. This study investigated the successional microbial colonization of ryegrass (GRA vs. ryegrass hay (HAY in presence of zero or 50 IU/d supplementary vitamin E, using a rumen simulation technique. A holistic approach was used to link the dynamics of feed degradation with the structure of the liquid-associated (LAB and solid-associated bacteria (SAB. Results showed that forage colonization by SAB was a tri-phasic process highly affected by the forage conservation method: Early colonization (0–2 h after feeding by rumen microbes was 2× faster for GRA than HAY diets and dominated by Lactobacillus and Prevotella which promoted increased levels of lactate (+56% and ammonia (+18%. HAY diets had lower DM degradation (-72% during this interval being Streptococcus particularly abundant. During secondary colonization (4–8 h the SAB community increased in size and decreased in diversity as the secondary colonizers took over (Pseudobutyrivibrio promoting the biggest differences in the metabolomics profile between diets. Secondary colonization was 3× slower for HAY vs. GRA diets, but this delay was compensated by a greater bacterial diversity (+197 OTUs and network complexity resulting in similar feed degradations. Tertiary colonization (>8 h consisted of a slowdown in the colonization process and simplification of the bacterial network. This slowdown was less evident for HAY diets which had higher levels of tertiary colonizers (Butyrivibrio and Ruminococcus and may explain the higher DM degradation (+52% during this interval. The LAB community was particularly active during the early fermentation of GRA and during the late fermentation for HAY diets indicating that the availability of nutrients in the liquid phase reflects the dynamics

Misturas NR/SBR: modos de preparação e propriedades

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Visconte Leila L. Y.

2001-01-01

Full Text Available Aplicações de artefatos de borracha muitas vezes requerem um conjunto de propriedades que não podem ser fornecidas por um único elastômero sendo, então necessário, que misturas de dois ou mais polímeros sejam empregadas. Nesses casos, os demais ingredientes que normalmente são adicionados, distribuem-se de modo diferente dependendo de sua afinidade com cada uma das borrachas. O grau de dispersão de cada um desses ingredientes em cada fase elastomérica irá influenciar a velocidade e o grau de vulcanização e, certamente, terá conseqüências sobre o desempenho do composto final. Neste trabalho, a borracha natural (NR foi misturada ao elastômero de butadieno-estireno (SBR na proporção de 1:1 em peso. As composições foram preparadas em misturador de cilindros, segundo a norma ASTM D 3182, empregando-se quatro maneiras distintas para a incorporação dos aditivos. Após a vulcanização foram estudadas propriedades mecânicas, como resistências à tração e ao rasgamento e dureza, propriedades termo-dinâmico-mecânicas e a morfologia de cada uma das composições. As propriedades mecânicas foram avaliadas de acordo com as normas ASTM específicas para cada ensaio. Os resultados mostram que, apesar de se usar a mesma formulação, o modo de preparo tem grande influência sobre as propriedades, o que é detectável pelas propriedades mecânicas e pela análise morfológica, e evidenciado através de testes sensíveis, como o dinâmico-mecânico. No caso da mistura NR/SBR as melhores propriedades são obtidas quando é favorecida a vulcanização da borracha que, isoladamente, apresenta propriedades inferiores.

Effect of lactic acid-lactobacillus preservative and moisture concentration at baling on intake and digestibility of crabgrass hay by lambs and in-situ digestibility by heifers

Science.gov (United States)

Crabgrass is a warm-season annual forage that has greater nutritive value than most other warm-season grasses and is highly palatable, but curing time for crabgrass hay is typically longer than for bermudagrass. Crabgrass hay was either not treated or treated with a lactic acid-lactobacillus preserv...

A reconceptualização dos modos de produção de saúde no contexto da reforma hospitalar portuguesa

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Tiago Correia

2012-12-01

Full Text Available Este artigo debruça-se sobre as recentes reformas desenvolvidas no sector hospitalar português. Trata-se da implementação de princípios da Nova Gestão Pública, não sendo, por isso, uma opção política exclusiva nem inovadora em Portugal. Decorrente do processo de tendencial empresarialização dos hospitais públicos, elege-se como objectivo perceber em que medida estas reformas afectam o significado da prestação pública de cuidados. A abertura às regras de mercado e, consequentemente, a um contexto de concorrência entre os prestadores públicos e entre os prestadores públicos e privados associa a empresarialização à mercadorização da prestação pública de cuidados. Não estando em causa o fim de um modo de produção de saúde estatal, apresentam-se argumentos que parecem comprovar que estas reformas afectam conceptualmente o modo de produção de saúde estatal definido por Boaventura de Sousa Santos em 1987, esbatendo algumas das fronteiras em relação ao modo de produção de saúde capitalista.

Libertad de conciencia y liberalismo

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Daniel Loewe

2011-11-01

Full Text Available El artículo investiga la libertad religiosa desde una perspectiva liberal y sostiene que hay buenas razones para entenderla de un modo amplio. Sin embargo, son estas mismas razones las que llevan a proteger de igual modo a la conciencia moral secular. De este modo, según el autor, la protección de la libertad religiosa no puede implicar ni el privilegio de una o algunas religiones por sobre otras, ni el privilegio de las religiones o la religiosidad por sobre la conciencia secular. La conclusión es que el Estado liberal debe ser neutral hacia la religión, lo que implica que las razones religiosas a favor o en contra de leyes, normativas o políticas públicas no son aceptables. Ellas violan el respeto debido a los individuos y la imparcialidad.

“Si Lasci Quindi ad Ognuno il Diritto di Raccontare i Fatti suoi a Modo suo”

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Doris Nátia Cavallari

2015-06-01

Full Text Available Nel Decameron di Giovanni Boccaccio i personaggi-narratori raccontano novelle con la propria intonazione narrativa e creano una nuova estetica della prosa letteraria. La libertà del modo di narrare i fatti presi dalla vita e trasformati in fiction rivela la proposta dell’autore di segnare la distanza tra vita e arte, che ha come risultato un testo rinnovatore nel carattere pluridiscorsivo e pluristilistico

“Si lasci quindi ad ognuno il diritto di raccontare i fatti suoi a modo suo”

Directory of Open Access Journals (Sweden)

Doris Nátia Cavallari

2015-06-01

Full Text Available Nel Decameron di Giovanni Boccaccio i personaggi-narratori raccontano novelle con la propria intonazione narrativa e creano una nuova estetica della prosa letteraria. La libertà del modo di narrare i fatti presi dalla vita e trasformati in fiction rivela la proposta dell’autore di segnare la distanza tra vita e arte, che ha come risultato un testo rinnovatore nel carattere pluridiscorsivo e pluristilistico

Barrera del desempeño laboral

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María Del Rosario Alvarez-Ramirez

2007-12-01

Full Text Available El estres es un hecho complejo en la vida de toda persona con efectos distintos en cada quien, que no puede ser evitada ya que en todos lo momentos de la vida se esta en riesgo de presentarlo ante cualquier situacion, o una actividad laboral o familiar, que puede llegar a generar cualquier cambio que represente estres. Los sucesos negativos, dario, enfermedad o muerte de un ser querido, son hechos estresantes, asi como los sucesos positivos; ascender en el trabajo trae consigo el estres del nuevo status, de nuevas responsabilidades. Dentro de los trastornos clinicos vinculados al estres hay alteraciones como: trastornos del sumo, ulceras, dolores de cabeza, aceleracion del ritmo cardiaco y otros trastornos como los cardiovasculares: palpitaciones, hipertension arterial, trastornos digestivos, dolores, ardores, vomitos, nauseas, diarrea o estreriimiento y trastornos cutaneos: donde se presenta transpiracion de manos y pies y problemas alergicos. En el estres se pueden llegar a presentar dos tipos de estres: el positivo y el negativo. Los cuales presentan unas caracteristicas muy particulares, como en el estres negativo: una persona se encuentra ante un nitmero creciente de demandas que le plantean dificultad o constituyen una amenaza, se debe mirar el modo de afrontarlas. En el Estres positivo se presenta cuando la percepcion de capacidad de demanda es mucho mas amplia que las verdaderas demandas. Un aspecto fundamental ante la presencia de estres es la practica necesaria de un deporte o la realizacion de actividades recreativas.

Sociedad y economía del conocimiento. El caso colombiano

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Diofanto Arce Tovar

2013-01-01

Full Text Available Desde los años setenta se presenta una reconfiguración del sistema productivo capitalista centrado en el conocimiento y la innovación. La inserción a este modo de desarrollo se convirtió en la meta de las naciones del mundo. Colombia no ha estado ajena a esta pretensión. Sin embargo, la visión idealista del conocimiento como factor de crecimiento y desarrollo, que se ha priorizado en todos los rincones del orbe, debe confrontarse con un análisis crítico que permita determinar qué hay detrás de la llamada sociedad y economía del conocimiento, dilucidar el papel que cumplen el gran capital internacional, las naciones, los gobiernos y las sociedades, pues es claro que aunque la innovación y la ciencia en muchos casos han generado avances importantes en cuanto índices de desarrollo, también lo es que responden a la estructura del sistema capitalista y a su afán por recuperar los niveles de ganancia previos a las recurrentes crisis sistémicas de las últimas décadas. El presente ensayo presenta el debate sobre la sociedad y economía del conocimiento desde la realidad colombiana, como ejemplo paradigmático de que el conocimiento sin autonomía continuará reproduciendo las condiciones tradicionales de una nación periférica.

Divulgación: El curso de articulación disciplinar de Contabilidad en la UNL. Evaluación diagnóstica de los conocimientos previos de los alumnos aportados por el secundario

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Leila Di Russo

2015-11-01

Full Text Available Actualmente, quienes deseen iniciar una carrera en la Facultad de Ciencias Económicas de la Universidad Nacional del Litoral deben asistir a los denominados Cursos de Articulación disciplinar en Matemática y Contabilidad, además de los denominados cursos de articulación generales. Los cursos de Contabilidad, que son el tema específico de este trabajo, tienen orígenes que se remontan muy atrás en el tiempo, pero que permiten ponerlos en perspectiva respecto de sus objetivos y resultados en la actualidad. El trabajo enfatiza la importancia de observar tanto las necesidades universitarias como la realidad de cada momento de la escuela secundaria, para optimizar los esfuerzos de articulación, considerados como un único sistema ordenado de acciones. En particular, el proceso que se realiza es analizado desde el punto de vista de las distintas tipologías de evaluación implicados en cada una de sus partes, teniendo en mira como herramienta central del trabajo los materiales que se utilizan para el proceso de enseñanza. A modo de conclusión, el trabajo sostiene que las adecuaciones realizadas en los últimos años en este proceso, van en la dirección correcta considerando la realidad actual de la Escuela Secundaria argentina. Sin embargo, se señalan acciones concretas posibles que demuestran que hay aún mucho por avanzar en este camino.

Concepción: su planeamiento y el reconocimiento de su marco geográfico

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Leonel Ramos Santibáñez

2002-08-01

Ahora bien, para el caso de Concepción en la conjunción de ciudad y geografía aún hay mucho de que hablar y para dicho comentario es necesario establecer con claridad los datos que podemos obtener de los hechos históricos previos a la conquista Española y a los de su fundación, que sin duda nos darán luces para un reconocimiento actual y el planeamiento futuro.

Relaciones entre modos cognitivos, desvío de tipos y desempeño laboral

OpenAIRE

Parra Tíjaro, Jeison

2014-01-01

Las organizaciones requieren una gestión humana estratégica, fundamentada en la importancia del conocimiento y la capacidad interna como las principales fuentes de ventaja competitiva (Ospina Jiménez, 2010; Calderón Hernández, Cuartas Castaño yÁlvarez Giraldo, 2009) -- La presente investigación pretende describir la relación existente entre el modo cognitivo preferente y el desempeño laboral -- La corteza cerebral está dividida en cuatro macroáreas especializadas en el sentido funcional, y, s...

LA UNIVERSIDAD POSTMODERNA Y LA NUEVA CREACIÓN DEL CONOCIMIENTO

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María José García Ruiz

2012-01-01

Full Text Available La globalización y su potenciación de la dimensión económica de las sociedades occidentales han favorecido la ascendencia y el influjo de la visión postmoderna de la universidad y del paradigma de la nueva creación del conocimiento por dicha visión propuesto. Los dos modos de creación del conocimiento, Modo 1 y Modo 2, constituyen dos paradigmas opuestos que concretan epistemológicamente los dos modelos, moderno y postmoderno, de universidad que coexisten sin relacionarse en los primeros años del siglo XXI. La masificación de la universidad constituye el argumento más potente de los defensores de la nueva epistemología. Si bien no se puede negar la existencia y el crecimiento de los nuevos desarrollos epistemológicos, quedan aspectos no resueltos del mismo necesitados aún de mucho debate académico. Entre estos destacan dos: la nueva composición de las identidades profesionales, y el presumible déficit democrático del Modo 2 de producción del conocimiento.

Hay fever, a post industrial revolution epidemic: a history of its growth during the 19th century.

Science.gov (United States)

Emanuel, M B

1988-05-01

Although other forms of allergic disease were described in antiquity, hay fever is surprisingly modern. Very rare descriptions can be traced back to Islamic texts of the 9th century and European texts of the 16th century. It was only in the early 19th century that the disease was carefully described and at that time was regarded as most unusual. By the end of the 19th century it had become commonplace in both Europe and North America. This paper attempts to chart the growth of hay fever through the medical literature of the 19th century. It is hoped that an understanding of the increase in prevalence between 1820 and 1900 may provide an insight for modern researchers and give some clues into possible reasons for the epidemic nature of the disease today.

Do glyphosate resistant feral plants and hay fields spread the transgene to conventional alfalfa seed fields?

Science.gov (United States)

In addition to meeting domestic needs, large amounts of alfalfa seed and hay produced in the US are being exported overseas. Because alfalfa is an insect pollinated crop, gene flow is a concern. Adding to this alfalfa readily naturalizes along roadsides, irrigation ditches, and unmanaged habitats; a...

Association between parental socioeconomic position and prevalence of asthma, atopic eczema and hay fever in children

DEFF Research Database (Denmark)

Hammer-Helmich, Lene; Linneberg, Allan; Thomsen, Simon Francis

2014-01-01

with a decreased risk of atopic eczema and eczema symptoms. There was no independent association between household income and any of the outcomes. CONCLUSIONS: The prevalence of asthma and hay fever, but not atopic eczema, increased with increasing age. Atopic eczema was associated with high parental educational...

Identidad y arte sonoro: el proyecto “Argentina suena”

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Raúl Minsburg

2016-10-01

Full Text Available RESUMEN Son muchos los elementos que definen la identidad de un país o de una región. Tanto aquellos que son tangibles como los intangibles. El arte sonoro, o la música electroacústica, pareciera tener un vínculo nada fácil con este tema: por un lado hay muchas obras que, debido a su carácter abstracto, escapan a alguna identificación geográfica o temporal, y por otro lado, hay obras que establecen un vínculo a partir de tomar gestos o citas externas, provenientes de músicas folklóricas. Más a modo de preguntas, y sin tratar de llegar a una conclusión definitiva por el momento, este artículo intenta indagar si es posible concebir un tipo de música de carácter experimental en donde se refleje una cierta identidad sonora. En este marco, se presentará el proyecto “Argentina suena” con un corpus de obras que abordan esta temática con diferentes criterios y propuestas estéticas. ABSTRACT There are many elements that define the identity of a country or a region. There are those that are tangible and those intangible. However, sound art, or electroacoustic music, seems not to have an easy link with this topic: on the one hand, there are many works that, due to their abstract nature, elude geographical or temporal identification and, on the other hand, there are works that establish a link by making gestures or external quotations from folk music. By making questions more than giving answers, and without trying to reach a definite conclusion for the moment, this article tries to find out if it is possible to conceive a type of experimental music in which some kind of sound identity is reflected. In this context, the "Argentina suena" project will be presented, mentioning a corpus of works that deal with this subject according to different criteria and aesthetic proposals.

Effects on the equine colon ecosystem of grass silage and haylage diets after an abrupt change from hay.

Science.gov (United States)

Muhonen, S; Julliand, V; Lindberg, J E; Bertilsson, J; Jansson, A

2009-07-01

The objective of this study was to investigate the effect of an abrupt change from grass hay (81% DM) to grass silage (36% DM) or grass haylage (55% DM), fed at similar DM intakes, and to compare the effects of silage and haylage on the composition and activities of the colon microflora. The forages were from the same swath harvested on the same day. Four adult colon-fistulated geldings were randomly assigned to diets in a crossover design. The study started with a preperiod when all 4 horses received the hay diet, followed by an abrupt feed change to the haylage diet for 2 horses and the silage diet for 2 horses. All 4 horses then had a new second preperiod of hay, followed by an abrupt feed change to the opposite haylage and silage diet. The periods were 21 d long, and the forage-only diets were supplemented with minerals and salt. The abrupt feed changes were made at 0800 h. Colon samples were taken before the abrupt feed change, 4 and 28 h after the feed change, and 8, 15, and 21 d after the feed change, all at 1200 h. Colon bacterial counts, VFA, pH, and DM concentrations were unchanged throughout the first 28 h after the abrupt feed change from hay to haylage and silage. Also, fecal pH and DM concentrations were unchanged during the first 28 h. During the weekly observations, colon lactobacilli counts increased (P = 0.023) in horses receiving the silage diet and were greater than on the haylage diet at 21 d. Streptococci counts decreased (P = 0.046) in horses receiving the haylage diet and were less than on the silage diet at 15 and 21 d. Total VFA concentrations and colon and fecal pH did not differ between diets and were unchanged throughout the weekly observations. The DM concentration of colon digesta and feces decreased (P = 0.030 and 0.049, respectively) on both diets during the weekly observations. The results suggest that in horses fed at the maintenance level of energy intake, an abrupt feed change from grass hay to grass silage or grass haylage from

Control por Modos Deslizantes y Planitud Diferencial de un Convertidor de CD/CD Boost: Resultados Experimentales

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R. Silva-Ortigoza

2008-10-01

Full Text Available Resumen: En este trabajo se presenta el control del convertidor de potencia de CD a CD Boost. En este sistema existen dos problemas de control, a saber; la regulación alrededor de un punto de equilibrio y la de seguimiento de trayectoria del voltaje de salida. Nosotros enfocamos nuestra atención al segundo problema de control. Debido a las propiedades de fase que satisface este convertidor, para realizar la tarea de seguimiento de trayectoria se diseña un controlador indirecto basado en modos deslizantes en combinación con planitud diferencial, el cual permite el seguimiento de trayectoria de la variable de fase no mínima (voltaje basado en el seguimiento de trayectoria de la variable de fase mínima (corriente. La síntesis de este controlador se realiza con la ayuda de una tarjeta de adquisición de datos National Instruments™ PCI-6025E junto con el software de aplicación MATLAB®-Simulink®. Se aplica este controlador al prototipo del convertidor Boost desarrollado y se obtienen resultados experimentales satisfactorios. Palabras clave: Control Indirecto, Convertidor de CD/CD Boost, Modos Deslizantes, Planitud Diferencial, Seguimiento de Trayectoria

Problemas de Clasificación en las Plantas Cultivadas

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Aaberg Ewert

1949-06-01

Full Text Available Durante los últimos años, se han recolectado numerosos tipos de plantas cultivadas en varias regiones del mundo. Entre éstos, hay colecciones de granos pequeños, de lino, de fríjoles y guisantes y de otras muchas plantas. En muchos países, las especies y variedades principales de estas colecciones se cultivan para investigaciones en grandes viveros. Los investigadores que se encargan de cultivar estas colecciones confrontan problemas de clasificación y descripción de las colecciones. Han encontrado una continua variación, tanto dentro como entre las especies y, por consecuencia, han hallado inadecuados muchos de 105 sistemas de clasificación. La continua variación en el material ha causado una nueva ola de discusión relativa al concepto de especie y a su definición.

Climatic change: back to the IIF talk at La Haye; Changements climatiques: retour sur la communication de l'IIF a La Haye

Energy Technology Data Exchange (ETDEWEB)

Dupont, J.L.

2002-07-01

This document reprints the communication given by F. Billiard, head of the international institute of refrigeration (IIF), at the COP-6 conference of La Haye (November 2000). In his talk, F. Billiard explains the contribution of the refrigeration industry to the global warming which is mainly due to the leaks of refrigerants (CFC, HCFC, HFC) and to the carbon dioxide emissions corresponding to the electric power consumption of refrigerating machineries, air-conditioners and heat pumps. Thus, the abatement of these greenhouse gas emissions requires an improvement of the confinement of the refrigeration equipments and a continuous optimization of their energy efficiency. A second part analyzes the key points of this communication and the choice of some objective appreciation criteria for the remedial actions to be implemented. A glossary completes the document. (J.S.)

Leuis Mumford: La ciudad y la historia

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Ramiro Carranza

1968-03-01

Full Text Available La importancia del libro que comentamos, está en que sigue con espiritu crítico, cada paso dado por el hombre en la creación de la ciudad. Con ello, al lector va haciendo conciencia de una circunstancia en la cual vive desde su nacimiento y que en muchos aspectos ha considerado tan natural -fatal o obvia- como la salida del sol todas las mañanas o la forma de sus manos. L. Mumford estudia el "por qué" de cada fenómeno ciudadano; hay razones, en el fondo principios, para que, por ejemplo las manzanas sean cuadradas y no redondas o triangulares, aparte del problema de técnica urbanística cuyas soluciones muchas veces no son aceptadas por la ciudad ; hay una intención, un designio sobr e la ciudad, cuando se eleva un edificio comercial sobre la cruz que remata la torre de una iglesia; hay razones para agrupar el poder político y religioso en el marco de una plaza.

A poesia e o banal nos modos de fazer

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Rafael de Almeida

2011-06-01

Full Text Available Reflito neste ensaio, a partir da análise de O fim do sem fim (Beto Magalhães, Cao Guimarães e Lucas Bambozzi, 2001, a questão do gesto como elemento do cinema documentário. A discussão parte dos efeitos de real, expressão de Jean-Louis Comolli, alcançada na montagem do filme, perpassando reflexões em torno do corpo, sua cotidianidade e, por fim, sua forma, naquilo que Giorgio Agamben chamará de forma-de-vida. Aponto, em O fim do sem fim para uma inserção do corpo cotidiano, bem como seus gestos e modos de fazer em extinção, na esfera política por intermédio da escritura do filme. O trabalho é parte do projeto “Experimentar o real: (reinvenções do documentário brasileiro contemporâneo” que busca compreender o documentário, em sua vertente inventiva, como caminho privilegiado para a renovação e expansão do domínio rumo à produção de outras formas de discurso imagético-narrativos.

Ambientes de aprendizajes para favorecer el desarrollo del pensamiento y lenguaje matemático: la aventura de pensar en clase de matemática

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Adriana Herrera Salas

2014-02-01

Full Text Available No hay nada más básico en una disciplina que su modo de pensar. No hay nada más importante en su enseñanza que proporcionar al niño una temprana oportunidad para aprender ese modo de pensar (Bruner, J. Sabemos que los conocimientos disciplinares, por sí solos, pueden resultar de escasa utilidad, por consiguiente, el énfasis debiera focalizarse en el desarrollo de habilidades de pensamiento que permitan la construcción, reconstrucción y significación del conocimiento que facilite la transferencia a campos de experiencia y contextos amplios de aplicación. En este artículo se plantea una forma diferente de focalizar la Formación Inicial de Profesores de Educación Básica con Mención en Matemática. Ello supone la instalación de espacios y ambientes de aprendizaje que permitan a los futuros profesores “Aprender a pensar matemáticamente para enseñar a pensar matemáticamente a los estudiantes de Enseñanza a Básica.”

Hay huellas en el cuerpo

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Julia Bertone

2011-12-01

Full Text Available La presente reseña introduce y comenta el libro de los compiladores Victoria D`hers y Eduardo Galak “Estudios sociales sobre el cuerpo: prácticas, saberes, discursos en perspectiva”; el cual surge en el marco de las “VI Jornadas de Sociología de la UNLP” y consta de un prólogo realizado por Adrián Scribano y Lucas Aimar, y once artículos producidos por jóvenes investigadores en relación a los Cuerpos y las Emociones.Los autores proponen recorrer un mapeo y ensayar lecturas sobre las conexiones entre prácticas corporales, afecciones y emociones. La escritura y el modo de presentación del libro reflejan la textura de la temática y la complejidad del espacio de reflexión. Desde una sociología de los cuerpos y las emociones es posible hallar pistas que nos conduzcan a comprender el sentido que los actores dan a sus prácticas; identificar nodos conflictuales que emergen en esas comprensiones cotidianas; y dar cuenta de cómo la sociedad que se hace cuerpo, puede ser rastreada a partir del análisis de determinadas emociones sociales. Desde el título podemos reconocer que el libro deja huellas para comprender que el propio cuerpo es discusión del presente y del futuro inmediato.

Growth performance of indigenous sheep fed Sporobolus virginicus grass hay grown in saline desert lands and irrigated with high salt content ground water.

Science.gov (United States)

Alhadrami, G A; Al-Shorepy, S A; Yousef, A M

2010-12-01

Twenty-eight indigenous ewe lambs (6 months of age and 14.4 kg body weight (BW)) were used to evaluate the effect of feeding Sporobolus grass hay (SGH) as the only source of forage on growth, and feed and water intakes. The ewe lambs were randomly and equally allocated to two treatment groups (14 lambs/group). The ewe lambs in group 1 (treatment 1) received SGH, while lambs in group 2 (treatment 2) received Rhodes grass hay (RGH) as the only source of forage. Water was available at all times for both treatment groups. Sporobolus grass was irrigated with brackish water of high salt content (20,000 ppm) and grown in saline desert lands (sabkha) in the United Arab Emirates. The average daily dry matter intake was significantly (P  .05) between the two groups at all stages. From these data, we conclude that SGH can replace Rhodes hay in sheep diet without significant effect on sheep performance.

Supplementation of native grass hay with cowpea (Vigna unguiculata hay, wilted leucaena (Leucaena leucocephala forage, wilted tagasaste (Chamaecytisus palmensis forage or a wheat middling for young Friesian x Zebu (Boran crossbred steers

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Tuomo Varvikko

1992-03-01

Full Text Available A 100-day experiment of a randomized block design was conducted with forty Friesian x Zebu (Boran crossbred growing steers to compare the value of wheat middling, an agro-industrial by-product (diet W, cowpea (Vigna unguiculata hay (diet C, and wilted forages of leucaena (Leucaena leucocephala, diet L and tagasaste (Chamaecytisus palmensis, diet T as cattle feed. These feeds were fed daily at a level of 1.5 kg (on an air dry basis to supplement the basal diet (diet H of native hay. A mineral supplement containing 50 g bone meal and 10 g common salt was also given daily. The steers were group-fed, but during the last two weeks at the end of the experiment the animals were housed individually in feeding pens to estimate the feed intake and apparent digestibilities of the diets. The animals were weighed at the beginning of the experiment, thereafter every two weeks, and finally at the end of the experiment. The animals consumed all the offered supplements, except for tagasaste forage, of which one third remained unconsumed. The mean daily total dry matter intake during the individual feeding period ranged from 4.0 to 5.0 kg between the diets (P

Estilos de liderazgo y su relación con los niveles de optimismo de los colaboradores, en entornos culturales de países suramericanos

OpenAIRE

Avella Cubillos, Diana Milena

2014-01-01

Los estudios del liderazgo dentro de un contexto empresarial se han desarrollado para alcanzar la perdurabilidad empresarial, generar bienestar, lograr el éxito esperado, valorar el capital humano, los talentos y los recursos existentes, etc. Sin embargo, aún existen muchos aspectos que se deben analizar. Uno de ellos es entender los conceptos del optimismo, del tipo de liderazgo y las diferencias culturales de diversos países. Por otro lado, no hay evidencia precisa de la repercusión que tie...

Sistemas para el suministro de servicios a usuarios de recursos naturales: enfoque, funciones de información y comunicación y consideraciones de política

OpenAIRE

Ramírez Ricardo; Lee Rebecca

2007-01-01

Hay una creciente aceptación de que no existe un único enfoque para el suministro de servicios rurales que pueda satisfacer las necesidades de todos los usuarios de los recursos naturales. Agrupamos a los usuarios según las siguientes categorías: familias agrícolas con acceso a mercados, comunidades rurales con ingresos derivados de una variedad de actividades, y comunidades con acceso a recursos de propiedad común. Cada grupo tiene necesidades particulares y en mucho...

Service delivery systems for natural resource stakeholders: targeting, information and communication functions and policy considerations

OpenAIRE

Ricardo Ramírez; Rebecca A. Lee

2007-01-01

Hay una creciente aceptación de que no existe un único enfoque para el suministro de servicios rurales que pueda satisfacer las necesidades de todos los usuarios de los recursos naturales. Agrupamos a los usuarios según las siguientes categorías: familias agrícolas con acceso a mercados, comunidades rurales con ingresos derivados de una variedad de actividades, y comunidades con acceso a recursos de propiedad común. Cada grupo tiene necesidades particulares y en muchos casos los sistemas priv...

La participación profesor - alumno en la interacción educativa en las principales corrientes pedagógicas

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Elsa Tueros Way

1992-11-01

Full Text Available Tomamos como punto de partida el afirmar que la participación constituye hoy una tarea urgente para la educación. Hay un deseo latente en todas las personas que abordamos de uno u otro modo la tarea educativa: toda institución con una intencionalidad clara de conseguir logros educativos debe responder a los cambios de la sociedad y la cultura.

Replacement of alfalfa hay (Medicago sativa L.) with subabul (Leucaena leucocephala) leaf meal in diets of Najdi goats: effect on digestion activity of rumen microorganisms.

Science.gov (United States)

Mohammadabadi, Tahereh; Jolazadeh, Alireza

2017-08-01

This study investigated the effect of replacing alfalfa hay by subabul leaf meal (SLM) on digestion, fermentation parameters and rumen bacteria and fungi activity of Najdi goats. Six Najdi goats (150 ± 15 days of age and initial body weight of 35 ± 1.1 kg) were randomly assigned to one of two dietary treatments in a balanced completely randomized design (three goats per treatment) for 56 days. Experimental treatments included alfalfa hay as control group and diet containing SLM (SLM replacing alfalfa hay at 50% level). Bacterial and fungi activity and rumen fermentation parameters of animals fed experimental diets were determined. Dry matter disappearance (DMD) was unaffected by replacing SLM with alfalfa hay for both rumen bacteria and fungi in different incubation times, except for 48 h of incubation in specific culture medium of mixed rumen bacteria, which decreased for SLM group (P > 0.05). NDF disappearance (NDFD) and ADF disappearance (ADFD) after 24 and 48 h of incubation in specific culture medium of mixed rumen bacteria was not affected by experimental diets (P > 0.05). However, 72 h after incubation, NDFD in SLM treatment decreased (P > 0.05). Gas production parameters of rumen bacteria were similar for both experimental diets, but partitioning factor (PF), efficiency microbial biomass production (EMBP), microbial protein production (MP), and organic matter truly digested (OMTD) decreased (p alfalfa hay by SLM had no major effect on rumen microorganisms' activity of Najdi goats, so it may be used as an alternative for alfalfa (at 50% level) in susceptible areas.

Sin latencia no hay adolescencia. There is not adolescence without latency.

OpenAIRE

Fernández Fuente, Sofia

2009-01-01

There is not adolescence without latency.Resumen ¿Cuándo comienza la adolescencia? ¿Hay un tiempo para saber de la sexualidad? Si este saber se da en la infancia. ¿Cuáles son sus consecuencias? ¿Qué relación tiene este saber con lo que se nombra como alta erotizacion? Consentir ser objeto del deseo del Otro. ¿Qué tiene con la repetición y qué es lo que se repite? Estas son preguntas que se abordan a partir de una lectura de los textos freudianos y una interpretación a partir de conceptos laca...

DELINCUENCIA JUVENIL Y EDUCACIÓN FÍSICA

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IVAN ARTURO TORRES A.

2014-11-01

Full Text Available Mucho se ha hablado hasta ahora acerca del origen de la delincuencia juvenil en nuestro país hasta el punto que muchos afirman que ya estamos sobre diagnosticados al respecto. Sin embargo, compartimos la opinión de quienes afirman que los diagnósticos no están agotados. Por el contrario, nuestro país adolece de estudios profundos sobre el tema. Aún hay muchos aspectos sin descifrar. La sociedad y especialmente los jóvenes esperarnos los resultados que arrojen dichos estudios con la perspectiva de avanzar en la construcción de un futuro más alentador y promisorio.

Chemical composition, intake by sheep, and in situ disappearance in cannulated cows of bermudagrass hayed at two moisture concentrations and treated with a non-viable lactobacillus-lactic acid preservative

Science.gov (United States)

Bermudagrass [Cynodon dactylon (L.) Pers.] is commonly used for grazing and haying in the southern USA, but hay curing can be challenging due to frequent rainfall events during spring and early summer. An existing stand of ‘Greenfield’ bermudagrass was divided into 12 plots using a randomized comple...

Modeling of drainage and hay production over the Crau aquifer for analyzing the impact of global change on aquifer recharge

Science.gov (United States)

Olioso, Albert; Lecerf, Rémi; Baillieux, Antoine; Chanzy, André; Ruget, Françoise; Banton, Olivier; Lecharpentier, Patrice; Alkassem Alosman, Mohamed; Ruy, Stéphane; Gallego Elvira, Belen

2013-04-01

The recharge of the aquifer in the Crau plain (550 km2, Southern Rhone Valley, France) depends on the irrigation of 15000 ha of meadow using water withdrawn from the River Durance through a dense network of channels. Traditional irrigation practice, since the XVIth century, has consisted in flooding the grassland fields with a large amount of water, the excess being infiltrated toward the water table. Today, the Crau aquifer holds the main resource in water in the area (300 000 inhabitants) but changes in the agricultural practices and progressive replacement of the irrigated meadows by urbanized area threaten the sustainability of groundwater. The distributed modeling of irrigated meadows together with the modeling of groundwater has been undertaken for quantifying the contribution of the irrigation to the recharge of the aquifer and to investigate possible evolution of hay production, water drainage, evapotranspiration and water table under scenarios of climate and land-use changes. The model combines a crop model (STICS) that simulates hay production, evapotranspiration and water drainage, a multisimulation tool (MultiSimLib) that allows to run STICS over each agricultural field in the aquifer perimeter, a groundwater model MODFLOW to simulate the water table from recharge data (simulated drainage). Specific models were developed for simulating the spatial distribution of climate, including scenario of changes for the 2025 - 2035 time period, soil properties (influenced by irrigation), and agricultural practices (calendar and amount), in particular irrigation and hay cutting. This step was crucial for correctly simulating hay production level and amount of water used for irrigation. Model results were evaluated thanks to plot experiments and information from farmers (biomass production, downward water flow, quantity of irrigated water, cutting calendar...), a network of piezometers and remote sensing maps of evapotranspiration. Main results included: - the

Estabilidad para un control borroso en modo deslizante aplicado a un robot paralelo neumático

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Pablo J. Prieto

2015-10-01

Full Text Available Resumen: Se presenta un controlador borroso tipo Mamdani basado en técnicas en modo deslizante para el posicionamiento de un robot paralelo neumático de dos grados de libertad (2 GDL. Es probado que el sistema es asintóticamente estable en el sentido de Lyapunov y se presentan resultados numéricos y experimentales. Ma's aún, el controlador diseñado puede ser aplicado en control de trayectoria al ser retroalimentadas la velocidad y la aceleración del sistema. Se presentan adema's resultados satisfactorios obtenidos en forma experimental para el caso de seguimiento de trayectoria. Abstract: In this paper is reported a Mamdani type fuzzy controller based on sliding mode techniques applied to the regulation of a 2 DOF pneumatic parallel robot. Is is proved that the system is stable in Lyapunov sense, and numerical and experimental results are reported. Moreover, the designed controller can be applied to tracking control if speed and acceleration from the system are feedbacked. Also are reported satisfactory experimental results for the tracking case. Palabras clave: Control borroso, Control de robot, Estabilidad de Lyapunov, Modos deslizantes., Keywords: Fuzzy control, Robot control, Lyapunov stability, Sliding mode.

Modos de abordar las humillaciones entre estudiantes. Un estudio desde la perspectiva de alumnos de educación secundaria

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Agustina Mutchinick

2018-04-01

Full Text Available En el marco de una investigación sobre las relaciones de humillación entre estudiantes desde la perspectiva de alumnos de educación secundaria se indagaron los modos en que los actores escolares abordan estas modalidades de vinculación. Se analizaron, por un lado, las maneras de responder a las humillaciones por parte de los alumnos que son humillados y, por otro, las intervenciones que realiza la escuela (docentes, directivos, preceptores. Los datos se obtuvieron a partir de entrevistas en profundidad a estudiantes de dos escuelas de la provincia de Buenos Aires, Argentina. Los resultados revelan que existe por parte de los estudiantes que sufren estas prácticas una escasa demanda de la mediación de los docentes y directivos; lo cual se complementa con una baja intervención de las autoridades de la escuela ante estas formas de sociabilidad. De este modo, las maneras de actuar de los diversos actores componen un escenario que dificulta un abordaje institucional que permita dar soluciones a esta problemática.

Narrar e descrever: modos de organização do discurso no filme narrativo de ficção

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Carolina Assunção e Alves

2014-05-01

Full Text Available No domínio da Análise do Discurso, mais especificamente na Teoria Semiolinguística, Patrick Charaudeau (1992 apresenta a categoria dos modos de organização do discurso – enunciativo, argumentativo, narrativo e descritivo – como aparelhos utilizados para construir e ordenar os conteúdos dos contratos de comunicação com suas respectivas estratégias. Consideramos o filme narrativo de ficção como gênero discursivo a ser estudado enquanto fenômeno sociallinguageiro, objeto de troca entre instâncias de produção e recepção, com base em um acordo comunicacional preestabelecido. Este artigotem como meta refletir sobre possíveis configurações dos modos narrativo e descritivo de organização do discurso em plataforma audiovisual, durante o processo de construção do filme narrativo de ficção. Para isso, contamos com o auxílio de estudos teóricos acerca da linguagem cinematográfica desenvolvidos por autores como Martin(1990 e Beylot (2005, entre outros.

Evaluation of the effect of fortified and concentrated hay supplementation on the production of bovine milk (Bos taurus L. during the dry season in the Achaca-Tiahuanacu community

Directory of Open Access Journals (Sweden)

Patty-Quispe Magda Hortencia

2017-04-01

Full Text Available The present study was carried out in the Achaca Community of the Municipality of Tiahuanacu, with the objective of evaluating the effect of supplementation with fortified and concentrated hay on milk production, feed conversion, total solids and production costs in three periods (Control, adaptation and supplementation during the dry season (October and November. 12 Holstein mestizo cows were used between 4 and 6 months of lactation. The design used was completely randomized blocks with factorial arrangement of 2Ax3Bx (3 with three replicates. The average milk yield of 4.69 kg of cows supplemented with fortified hay and 6.24 kg with concentrate were higher than the production of 3.94 and 5.11 kg respectively in the adaptation period and finally the production of 3.58 and 3.42 kg in the control period. The feed conversion with fortified hay supplementation of 2.60 kg was greater than 2.12 and 1.90 kg respectively. While feed conversion between supplements was 1.61 and 1.78 kg with concentrate in the adaptation period and finally with 2.12 and 2.60 kg with fortified hay in the supplementation period. The total solids content of 10.52 ºBrix was superior to the adaptation period of 10.30 ºBrix and control with 10.05 ºBrix. Meanwhile, total solids between supplements were 10.19 ºBrix with fortified hay and 10.39 ºBrix with concentrate.

Malaysia/Singapore: Where Asian Cultures Meet. Participants' Papers. Fulbright-Hays Seminars Abroad Program, 2001 (Malaysia and Singapore).

Science.gov (United States)

Malaysian-American Commission on Educational Exchange, Kuala Lumpur.

The general objective of the Fulbright-Hays Seminars Abroad Program is to help U.S. educators enhance their international understanding and increase their knowledge of the people and culture of other countries. This particular program offered participants an overview of life in Malaysia and Singapore through seminars and other activities.…

Associations of genetic determinants of serum vitamin B12 and folate concentrations with hay fever and asthma

DEFF Research Database (Denmark)

Skaaby, Tea; Taylor, Amy E; Jacobsen, Rikke K

2017-01-01

Background/objectives: Studies of the effect of vitamin B12 and folate on the risk of asthma and hay fever have shown inconsistent results that may be biased by reverse causation and confounding. We used a Mendelian randomization approach to examine a potential causal effect of vitamin B12 and fo...

Guía de buenas prácticas de seguridad informática en el tratamiento de datos de salud para el personal sanitario en atención primaria

OpenAIRE

Ana Sánchez-Henarejos; José Luis Fernández-Alemán; Ambrosio Toval; Isabel Hernández-Hernández; Ana Belén Sánchez-García; Juan Manuel Carrillo de Gea

2014-01-01

Con la introducción de la historia clínica digital surge la necesidad de reforzar la seguridad de los datos personales de salud para garantizar su privacidad. A pesar de la gran cantidad de medidas de seguridad técnicas y de recomendaciones existentes para el ámbito sanitario, hay un aumento en las violaciones de la privacidad de los datos personales de los pacientes en centros sanitarios, en muchos casos como consecuencia de errores o descuidos de los profesionales sanitarios. En este trabaj...

Los arqueólogos y el Patrimonio Minero

OpenAIRE

Puche Riart, Octavio

1999-01-01

Desde luego que no conocemos a todos los Arqueólogos de las SEDPGYM, pero si podemos garantizar que hay muchos. Esta situación se fundamenta en la importancia que se da en nuestra Sociedad a la Minería Histórica y a la Arqueología Minera. Tal circunstancia nos ha llevado a que en la V Sesión Científica de la SEDPGYM, de Linares, se abra una Sección sobre estos temas presidida por un Arqueólogo.

Posibilidades de intervención logopédica en pacientes con leucodistrofia

OpenAIRE

Villar López, Verónica del

2015-01-01

Aunque existen muchas enfermedades raras, el presente trabajo trata del grupo de enfermedades diferentes que se engloban en las llamadas leucodistrofias. En la actualidad hay pocos estudios sobre estas enfermedades y aún menos en lo referente a la posible intervención logopédica en ellas, aunque es cierto, que muchos de los signos y síntomas que aparecen en este grupo de enfermedades son teóricamente de interés central en logopedia como la parálisis, la ataxia, la disartria…...

ControlFluid: un mercado variable

OpenAIRE

Villa Duran, Nicolas

2014-01-01

Las estrategias de una empresa en un mercado pequeño donde hay pocos compradores y muchos vendedores se vuelven el centro y punto clave de éxito, de lo contrario la empresa solo sigue una tendencia de mercado que al mediano plazo no resultara efectiva y terminan desapareciendo. Es por ello que las estrategias de mercado en las empresas se vuelven la característica diferenciadora permitiendo tomar ventaja del hacinamiento de un sector. Para que una empresa sea exitosa debe tener en cuenta sus ...

Respuesta Pulpar ante el recubrimiento Pulpar Directo: Revisión de la literatura

OpenAIRE

Camejo Suarez, Maria Valentina

1999-01-01

El recubrimiento pulpar directo es considerado un procedimiento controversial, debido a que la información concerniente al uso de esta técnica es escasa y ha sido desarrollada sobre la base de razonamientos empíricos y como consecuencia hay desconfianza por parte de los clínicos hacia estos procedimientos conservadores, a pesar de los avances en la práctica del recubrimiento directo. Se han empleado muchos materiales para el recubimiento pulpar directo y se ha aceptado el hidróxido de calcio ...

Últimas investigaciones sobre fotofobia asociada a daño cerebral adquirido y su tratamiento

OpenAIRE

Pardo López, Clara María

2016-01-01

La fotofobia se define como intolerancia dolorosa a las condiciones de luz normales. En individuos sanos la fotofobia puede existir de forma transitoria, producirse en respuesta a cualquier luz brillante o deslumbramiento y puede servir como función protectora. Sus mecanismos neurales aún son desconocidos, pero hay muchos factores que se sabe que causan fotofobia patológica, los cuales suelen estar asociados con anormalidad en cualquier lugar o estructura de la vía visual, desde la película l...

Plan de mantenimiento integral del Complejo de Castejón

OpenAIRE

Eslava Zaragüeta, Óscar

2016-01-01

Este proyecto de Fin de Grado está enfocado hacia el control y seguimiento del mantenimiento en el Complejo de Castejón, ya que en dicho establecimiento no hay ningún tipo de control ni un plan de mantenimiento establecido. Este hecho, provoca gastos económicos elevados ya que el mantenimiento que se realiza es un mantenimiento correctivo, es decir, cuando se rompe un equipo o componente, se arregla o se sustituye, lo que provoca un gasto mucho mayor, además de posibles in...

Cambios del modo y estilo de vida; su influencia en el proceso salud-enfermedad Changes of lifestyle; their influence on the health-disease process

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Leticia Espinosa González

2004-12-01

Full Text Available La calidad de vida depende directamente del medio natural y su calidad. La valoración sobre la salud no solo depende de las necesidades y los conocimientos del individuo, sino también de las condiciones de vida y trabajo. Se realiza un estudio donde se muestran los cambios sociales del modo y estilo de vida de la población y su relación con el proceso salud-enfermedad, así como los cambios del modo y estilo de vida que ayudan a promover salud y prevenir enfermedades, basados precisamente en la existencia de los factores determinantes del estado de salud y la modificación que sufren estos por el constante desarrollo social y científico-técnico. Se constata que el modo y estilo de vida de la población depende del sistema socioeconómico imperante. Los cambios del modo y estilo de vida determinan cambios en las condiciones y la calidad de vida de las personas y modifican el proceso salud-enfermedad.The quality of life depends directly on the natural environment and its quality. The assessment of health depends not only on the needs and knowledge of the individual, but also on the living and working conditions. Based precisely on the existance of determinants of the health status and on the modification they suffer due to the constant social, scientific and technical development, we propose ourselves to show the social changes of the lifestyle of the population and their relation to the health-disease process, and to prove how these changes help to promote health and to prevent diseases. The changes of the lifestyle determine changes in the conditions and quality of life of the persons and modify the health-disease process.

Nutritional Value And Yield of Kallar Grass (Leptochloa Fusca Linn) Hay and Its Effect on Reproductive Performance of Awassi Ewes Using Progesterone Radioimmunoassay

International Nuclear Information System (INIS)

Al-Masri, M R..; Zarkawi, M.; Khalifa, K.

2007-01-01

Nutritional value of Kallar grass (Leptochloa fusca Linn) hay (whole plant), a salt-tolerant plant, was estimated by determinning its composition (ash, crude protein CP, crude fibre CF, ether extract EE, neutral-detergent fiber NDF, acid-detergent fiber ADF, acid-detergent lignin ADL); and the in vitro organic matter digestibility (IVOMD), metabolizable energy (ME), net energy of lactation (NEL) and gross energy (GE). Moreover, dry matter, energy and protein yields per hectar were also estimated. The effects of feeding Kallar grass hay to pregnant Awassi ewes on reproductive performance, serum progesterone changes using radioimmunoassay, and on birth and weaning weights of lambs born were also determined. Experimental ewes received daily 300 g of Kallar grass hay in addition to lentil straw and concentrates to cover their nutritional requirements. The results indicated that the nutritive components of Kallar grass were (g kg -1 dry matter): ash 96, CP 93, CF 290, EE 21, NDF 755, ADF 416 and ADL 94. IVOMD was 49.3%, and energy values (MJ kg -1 dry matter) were: GE 26.88, ME 6.41 and NEL 3.02. Dry matter and crude protein yields of Kallar grass hay were 7875 and 732 kg ha -1 , respectively, and the energy produced (MJ ha -1 ) was: GE 211680, ME 50479 and NEL 23783. Kallar grass had no effects on the reproductive performance of pregnant Awassi ewes duration, of pregnancy (150.1 ± 2.2 days), progesterone patterns, birth (4.7±1.0 kg) or on weaning weights (22.7 ± ≤ 5.5 kg) of lambs.

Effects of a propionic-acid based preservative on storage characteristics of alfalfa-orchardgrass hay in large-rectangular bales

Science.gov (United States)

For many years, various formulations of organic acids have been marketed as preservatives, most specifically for use on hays that could not be field-dried to moisture concentrations low enough to reduce or eliminate spontaneous heating during storage. These preservatives are often propionic-acid-bas...

Correlations of intake, digestibility and performance with the ingestive behavior of lambs fed diets containing ammoniated buffel grass hay

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Alexandre Fernandes Perazzo

2016-06-01

Full Text Available This study aimed to evaluate the correlations of intake, digestibility and performance with the ingestive behavior of lambs fed diets containing ammoniated buffel grass hay. Buffel grass hay was treated with four levels of urea (0, 18, 36 and 54 g/kg DM basis and eight repetitions. Thirty-two sheep with no defined breed and an average body weight of 17.7 ± 1.8 kg were distributed in a completely randomized design. It was observed positive correlations were found between the feeding time and the intake of dry matter (r = 0.3120, organic matter (r = 0.3242, neutral detergent fiber (r = 0.3800, total carbohydrates (r = 0.3343 and total digestible nutrients (r = 0.3233. Positive correlations (P < 0.05 were found among the rumination efficiencies, g of DM/h and g of NDF/h with nutrient intake variables, except for ether extract intake. Positive correlations were observed (P < 0.05 between both total weight gain (TWG and average daily gain (ADG and the rumination efficiency, g of DM/h (r = 0.3330 and g of NDF/h (r = 0.3304. The feeding and rumination efficiencies have a positive relationship with the total digestible nutrients. The correlation among intake, digestibility and performance variables with the ingestive behavior, it was important for the understanding of diet containing ammoniated buffel grass hay, in which the positive correlation of rumination efficiency with intake and weight gain explained the favorable effect on productive performance of feedlot sheep.

Effects of different levels of sunflower residue silage replacement with alfalfa hay on Azari male buffalo calves fattening performance

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S. Razzagzadeh

2010-02-01

Full Text Available An experiment was conducted to study the effects of replacing alfalfa hay with different levels of sunflower residual silage (SRS on fattening performance of Azari male buffalo calves. Thirty calves with 138.33 Kg of BW fed experimental diets in a completely randomized design with 5 groups and 6 replicates. The five groups (1, 2, 3, 4 and 5 included 0 (control, 25, 50, 75 and 100 percent replacement of alfalfa hay with SRS, respectively in basal diet. The results showed that dry matter intake (DMI was significantly different between the groups (p<0.05. The highest and the lowest DMI were shown at the groups 1 and 5, respectively, however there was no significant difference between the groups 2, 3, and 4 with control. Daily weight gain (DWG was significantly different between the groups (p<0.05. Group 5 had significantly lower DWG than groups 1, 2 and 3, furthermore there were no significant difference between groups 1, 2, 3 and 4. Feed conversion ratio (FCR was significantly different among the groups (p<0.05. There was no significant difference among the groups 1, 2, 3 and 4. But these groups had significantly better FCR than the group 5. The best FCR was obtained for group3. It may conclude that alfalfa hay can be substituted with SRS at 50 % level with no negative effects on Azari male buffalo calves fattening performance.

Effects of feeding different proportions of silver leaf desmodium (Dismodium uncinatum) with banana (Musa paradisiaca) leaf on nutrient utilization in Horro sheep fed a basal diet of natural grass hay.

Science.gov (United States)

Chali, Diriba; Nurfeta, Ajebu; Banerjee, Sandip; Eik, Lars Olav

2018-03-02

The objective was to evaluate feed intake, digestibility, body weight change and carcass characteristics of sheep fed a basal diet of hay supplemented with banana leaves and silver leaf desmodium. Thirty yearling lambs with an average initial body weight of 15.85 ± 1.6 kg were grouped into six blocks of five rams in each block. The treatments were: hay alone (T1), hay + 100% banana leaf (T2), hay + 67% banana leaf + 33% desmodium leaf (T3), hay + 33% banana leaf + 67% desmodium leaf (T4) and hay + 100% desmodium leaf (T5). Three hundred grams of treatment diets were offered daily on as fed basis. The feeding and digestibility trial lasted for 84 and 7 days, respectively, followed by carcass evaluation. The total dry matter (DM) intake for T3, T4 and T5 were greater (P T4 > T3 > T2 > T1. Rams lambs receiving supplementary diets had higher (P<0.05) DM, OM, CP, neutral detergent fiber and acid detergent fiber digestibility compared with the control diet. The empty body weight and slaughter weight was highest (P<0.05) in rams receiving T3, T4 and T5 diets. The average daily gain and feed conversion efficiency was highest (P<0.05) in rams receiving the supplementary diets. The DP on the basis of hot carcass weight linearly increased with increasing levels of desmodium. Rams reared on supplementary diet had higher (P<0.05) rib eye area compared with the control diet. In conclusion, when banana leaf is used as a supplement to poor quality grass, better response was obtained when fed in combination with desmodium.

Diversification of mowing regime increases arthropods diversity in species-poor cultural hay meadows

Czech Academy of Sciences Publication Activity Database

Čížek, O.; Zámečník, J.; Tropek, Robert; Kočárek, P.; Konvička, Martin

2012-01-01

Roč. 16, č. 2 (2012), s. 215-226 ISSN 1366-638X R&D Projects: GA MŠk LC06073; GA ČR GD206/08/H044; GA MŽP SP/2D3/62/08 Grant - others:Czech Agency for Nature Conservation(CZ) PPK-35a/62/06 Institutional research plan: CEZ:AV0Z50070508 Keywords : hay meadows * arthropods conservation * mowing regimes Subject RIV: EH - Ecology, Behaviour Impact factor: 1.801, year: 2012 http://www.muzeumhk.cz/files/jaroslav_zamecnik/2012_cizek_zamecnik.pdf

Morocco and Senegal: Faces of Islam in Africa. Fulbright-Hays Summer Seminars Abroad, 1999 (Morocco and Senegal).

Science.gov (United States)

Center for International Education (ED), Washington, DC.

These projects were completed by participants in the Fulbright-Hays summer seminar in Morocco and Senegal in 1999. The participants represented various regions of the United States and different grade levels and subject areas. The 13 curriculum projects in the collection are: (1) "Doorway to Morocco: A Student Guide" (Sue Robertson); (2)…

IL-33 polymorphisms are associated with increased risk of hay fever and reduced regulatory T cells in a birth cohort.

Science.gov (United States)

Schröder, Paul C; Casaca, Vera I; Illi, Sabina; Schieck, Maximilian; Michel, Sven; Böck, Andreas; Roduit, Caroline; Frei, Remo; Lluis, Anna; Genuneit, Jon; Pfefferle, Petra; Roponen, Marjut; Weber, Juliane; Braun-Fahrländer, Charlotte; Riedler, Josef; Lauener, Roger; Vuitton, Dominique Angèle; Dalphin, Jean-Charles; Pekkanen, Juha; von Mutius, Erika; Kabesch, Michael; Schaub, Bianca

2016-11-01

IL-33 polymorphisms influence the susceptibility to asthma. IL-33 indirectly induces Th2-immune responses via dendritic cell activation, being important for development of atopic diseases. Furthermore, IL-33 upregulates regulatory T cells (Tregs), which are critical for healthy immune homeostasis. This study investigates associations between IL-33 polymorphisms during the development of childhood atopic diseases and underlying mechanisms including immune regulation of Tregs. Genotyping of IL-33-polymorphisms (rs928413, rs1342326) was performed by MALDI-TOF-MS in 880 of 1133 PASTURE/EFRAIM children. In 4.5-year-old German PASTURE/EFRAIM children (n = 99), CD4 + CD25 high FOXP3 + Tregs were assessed by flow cytometry following 24-h incubation of PBMCs with PMA/ionomycin, LPS or without stimuli (U). SOCS3, IL1RL1, TLR4 mRNA expression and sST2 protein levels ex vivo were measured in PASTURE/EFRAIM children by real-time PCR or ELISA, respectively. Health outcomes (hay fever, asthma) were assessed by questionnaires at the age of 6 years. rs928413 and rs1342326 were positively associated with hay fever (OR = 1.77, 95%CI = 1.02-3.08; OR = 1.79, 95%CI = 1.04-3.11) and CD4 + CD25 high FOXP3 + Tregs (%) decreased in minor allele homozygotes/heterozygotes compared to major allele homozygotes (p(U) = 0.004; p(LPS) = 0.005; p(U) = 0.001; p(LPS) = 0.012). SOCS3 mRNA expression increased in minor allele homozygotes and heterozygotes compared with major allele homozygotes for both IL-33-polymorphisms (p(rs928413) = 0.032, p(rs1342326) = 0.019) and negatively correlated to Tregs. IL-33-polymorphisms rs928413 and rs1342326 may account for an increased risk of hay fever with the age of 6 years. Lower Tregs and increased SOCS3 in combined heterozygotes and minor allele homozygotes may be relevant for hay fever development, pointing towards dysbalanced immune regulation and insufficient control of allergic inflammation. © 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

In situ degradability and selected ruminal constituents of sheep fed with peanut forage hay.

Science.gov (United States)

Fernandes, Gisele Machado; Possenti, Rosana Aparecida; Teixeira de Mattos, Waldssimiler; Schammass, Eliana Aparecida; Junior, Evaldo Ferrari

2013-01-01

Because legumes are a very important feed source for ruminants, the aim of this study was to evaluate the ideal inclusion level of hay Arachis pintoi cv. Belmonte in sheep diets by measuring the dry matter intake (DMI), concentration of volatile fatty acids, ammonia-nitrogen concentration, ruminal pH and the in situ degradability of dry matter (DM) and crude protein (CP). In the experiment with four sheep, a 4 × 4 Latin Square design was used with four periods and four treatments (0%, 30%, 60% and 100% Arachis replacing grass hay). Significant interactions were observed between treatments and sampling times for ammonia-nitrogen and acetate, propionate and butyrate concentration and the acetate:propionate ratio. The ruminal pH and total volatile fatty acids concentration were not affected by interaction between treatments and sampling time. The degradation of DM and CP was similar, rising with the increasing content of Arachis, showing a linear effect. The treatment containing 60% of Arachis showed best results, with good levels of daily weight gain and higher ruminal concentrations of volatile fatty acids. The legume showed high levels of CP, high digestibility and appropriate levels of fibre, with excellent standards of degradation and ruminal characteristics. The use of the legume  Arachis for ruminants is a promising option of nutrient supply to meet production demands of these animals.

Challenges of Globalization: Morocco and Tunisia. Curriculum Projects. Fulbright-Hays Summer Seminars Abroad Program, 2001 (Morocco and Tunisia).

Science.gov (United States)

2002

This publication contains a collection of curriculum projects developed by educators who were participants in the 2001 Fulbright-Hays Summer Seminars Abroad Program in Morocco and Tunisia. The 13 curriculum projects in the publication are entitled: "Women in Morocco, Artists and Artisans" (Virginia da Costa); "Cultures of…

¿Hay una relación entre el consumo de drogas y la memoria prospectiva?

Directory of Open Access Journals (Sweden)

José M. Aranaa

2012-01-01

Full Text Available El olvido de tareas pendientes (p.ej., comprar el pan al volver del trabajo es un indicador del funcionamientode la memoria prospectiva (MP. Según un reciente trabajo de nuestro laboratorio, estos olvidos aumentan con el consumo habitual de sustancias como alcohol, tabaco, cannabis y tranquilizantes. Estos datos, obtenidos en población joven con alta reserva cognitiva (alto nivel educativo que les protege del potencial deterioro neurológico y una trayectoria de consumo corta y de baja intensidad, hacen prever resultados mucho más evidentes en muestras de policonsumidores habituales.

Towards Detection of Cutting in Hay Meadows by Using of NDVI and EVI Time Series

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Andrej Halabuk

2015-05-01

Full Text Available The main requirement for preserving European hay meadows in good condition is through prerequisite cut management. However, monitoring these practices on a larger scale is very difficult. Our study analyses the use of MODIS vegetation indices products, namely EVI and NDVI, to discriminate cut and uncut meadows in Slovakia. We tested the added value of simple transformations of raw data series (seasonal statistics, first difference series, compared EVI and NDVI, and analyzed optimal periods, the number of scenes and the effect of smoothing on classification performance. The first difference series transformation saw substantial improvement in classification results. The best case NDVI series classification yielded overall accuracy of 85% with balanced rates of producer’s and user’s accuracies for both classes. EVI yielded slightly lower values, though not significantly different, although user accuracy of cut meadows achieved only 67%. Optimal periods for discriminating cut and uncut meadows lay between 16 May and 4 August, meaning only seven consecutive images are enough to accurately detect cutting in hay meadows. More importantly, the 16-day compositing period seemed to be enough for detection of cutting, which would be the time span that might be hopefully achieved by upcoming on-board HR sensors (e.g., Sentinel-2.

Los Carritos Por Puesto de Maracaibo: incongruencias entre objetivos políticos y objetivos técnicos en políticas públicas en transporte urbano

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Joheni Urdaneta

2008-09-01

Full Text Available El servicio de transporte público urbano del Municipio Maracaibo presenta gran variedad en sus modos de transporte: autobuses, microbuses, y carritos por puesto: carros de cinco puestos cuya vida promedio es de 30 años. El objetivo de este trabajo es explicar porqué el carrito por puesto continúa siendo uno de los principales modos de transporte. La metodología consiste en la revisión documental y entrevistas semi-estructuradas a funcionarios, transportistas y ciudadanos. Los resultados revelan que hay un componente complejo que involucra lo socio-cultural, político y económico que no ha sido tomando en cuenta para la formación e implantación de una política de transporte urbano.

Utilization of conserved Lucerne Hay as a Protein Supplement in the Diet of Calves on Smallholder Farms of Kenya

International Nuclear Information System (INIS)

Kiragu, J.W.; Tamminga, S.; Mitaru, B.N.

1999-01-01

The nutritive value and the conserved lucerne hay as a protein supplement in the diet of calves reared on the smallholder farms of Kenya was studied in relation to feed intake, growth rate and efficiency of feed utilization. Forty Friesian calves aged one week were allocate in a completely randomised design experiment to the following five dietary treatments: Napier Grass only (N) and supplemented with 33% lucerne (NL33), 50% lucerne (NL50), 67% lucerne (NL67) and 100% lucerne hay (L100) in the diet of calves. Results showed that increasing the level of lucerne supplementation in the ratio of dairy calves from 50 to 100% lucerne hay significantly (P <0.01) increased the crude protein content the mixed ration from 13.8 t o 16.88% CP which would meet the protein, requirement of the growing ruminants. The growth rate of calves increased linearly (P < 0.001) with the levels of lucerne supplements fro 50 to 100 % lucerne hay resulting in 0.02 kg gain more growth per day per kg additional feed supplement given. The cost of production per kg gain decreased with increase in the level of lucerne supplementation and cost of could further reduced by farmers growing lucerne on the smallholder farms for use in compounding home-made ration at the farm level. Result of these study further shows that lucerne as a leguminous forage has ability to fix Nitrogen in the soil which has significantly effect on soil fertility, increased crop yields and reduction in the cost of fertilisers. It is recommended that an acre of lucerne could yield five to seven tons of dry matter per year sufficient to rear a herd of 15 to 20 calves for a period of 1 year. This research has further shown that a pure stand of lucerne crop which is very deep rooted crop has a longevity of five to seven years in the same field and that pest and diseases are not of a serious problem to lucerne, thus making it excellent supplementary legume to the Napier grass in the diet of calves on smallholder farms of Kenya

HACIA UNA SOCIEDAD CON UN NUEVO MODO DE DESARROLLO UNA PROPUESTA PARA EL SIGLO 21/1

Directory of Open Access Journals (Sweden)

Julio Silva Colmenares

2001-01-01

Full Text Available En el documento se hace un crítico y detallado diagnóstico de la cruda realidad colombiana, poniendo énfasis en las profundas desigualdades sociales que hacen inviable el actual modelo de desarrollo. Como alternativa se propone un modo de desarrollo humano que garantice la libertad y la felicidad, para lo cual se requiere de una concepción filosófica y ética renovada y una nueva Economía Política, orientada más hacia el desarrollo del ser humano.

La construcción de la Paz y la No–violencia en la Educación Superior

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Eduardo Vázquez Vela de Eguiluz

2015-01-01

Full Text Available La Educación Superior, como constructora de dinámica social, es en muchos sentidos responsable de la violencia que hoy día se evidencia en nuestros contextos. Esta violencia se entiende desde un doble abordaje: la directa, aquélla en la que podemos identificar claramente al sujeto agresor y al sujeto agredido; y la estructural, mucho más sutil y a veces difícil de identificar, y consiste en las estructuras que no permiten el pleno goce de las condiciones mínimas de vida digna para muchas personas; por lo tanto, impiden la vivencia de los Derechos Humanos. Por eso, la Educación Superior adquiere la responsabilidad de modificar prácticas, curriculares, pedagógicas, cognitivas, relacionales, de modo que las y los egresados se transformen en ciudadanos tolerantes, incluyentes, participativos, constructores de paz.

Changes in fibre-adherent and fluid-associated microbial communities and fermentation profiles in the rumen of cattle fed diets differing in hay quality and concentrate amount.

Science.gov (United States)

Klevenhusen, Fenja; Petri, Renee M; Kleefisch, Maria-Theresia; Khiaosa-Ard, Ratchaneewan; Metzler-Zebeli, Barbara U; Zebeli, Qendrim

2017-09-01

The rumen microbiota enable important metabolic functions to the host cattle. Feeding of starch-rich concentrate feedstuffs to cattle has been demonstrated to increase the risk of metabolic disorders and to significantly alter the rumen microbiome. Thus, alternative feeding strategies like the use of high-quality hay, rich in sugars, as an alternative energy source need to be explored. The aim of this study was to investigate changes in rumen microbial abundances in the liquid and solid-associated fraction of cattle fed two hay qualities differing in sugar content with graded amounts of starchy concentrate feeds using Illumina MiSeq sequencing and quantitative polymerase chain reaction. Operational taxonomic units clustered separately between the liquid and the solid-associated fraction. Phyla in the liquid fraction were identified as mainly Firmicutes, Proteobacteria and Bacteroidetes, whereas main phyla of the fibre-associated fraction were Bacteroidetes, Fibrobacteres and Firmicutes. Significant alterations in the rumen bacterial communities at all taxonomic levels as a result of changing the hay quality and concentrate proportions were observed. Several intermicrobial correlations were found. Genera Ruminobacter and Fibrobacter were significantly suppressed by feeding sugar-rich hay, whereas others such as Selenomonas and Prevotella proliferated. This study extends the knowledge about diet-induced changes in ruminal microbiome of cattle. © FEMS 2017. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

Identificación de indicadores de impacto en un programa de gobierno y modos de vida rurales

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William Gómez Demetrio

2009-01-01

Full Text Available Se realizó un estudio para identificar y apreciar posibles indicadores que complementen formas de evaluación externas a programas oficiales de intervención agropecuaria. Se tomó como estudio de caso el subprograma local "Apoyo a Proyectos de Inversión Rural" (PAPIR de Desarrollo Rural de la Alianza Contigo. Se trabajó con un enfoque participativo con investigadores y personas beneficiarias del programa en el año 2004 en Villa Victoria, Estado de México. Se emplearon métodos de carácter cuantitativo y cualitativo considerando como enfoque a los modos de vida sustentables con el fin de interpretar los resultados desde un punto de vista amplio. Se concluyó que no existe suficiente evidencia para comprobar la operatividad funcional de las normas de operación oficiales, existe una tendencia del fomento al desarrollo rural mediante un enfoque territorial con una visión productiva. Los resultados denotan la presencia de indicadores sociales, económicos y ambientales consolidados y otros que interactúan entre sí, que no han sido considerados por la burocracia al determinar cómo evaluar el impacto del PAPIR. Se encontró que el tipo de apoyos otorgados no genera cambio alguno en el bienestar económico ni en el modo de vida de los beneficiarios.

El impacto de la indagación guiada sobre el aprendizaje de la habilidad de diseño experimental

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Di Mauro, Florencia; Furman, Melina

2012-01-01

Los currículos de muchos países plantean como objetivos prioritarios la enseñanza de una serie de habilidades relacionadas con los modos de conocer de las ciencias naturales y vinculadas con el desarrollo del pensamiento crítico y autónomo. En este sentido, diferentes autores convergen en la necesidad de generar investigaciones que permitan dar evidencias sobre el tipo de trabajo didáctico que favorece el desarrollo del pensamiento científico desde la escuela primaria. En este estudio indagam...

Inclusive Education, Person-Centered Planning & Systems Change Challenging Permutations and Opportunities

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Jack Pearpoint

2015-01-01

Full Text Available En este artículo se reconoce que ha habido notables progresos en la creación de oportunidades para la educación inclusiva, centradas en la planificación personal y en un cambio constructivo a largo plazo. Sin embargo, mientras que el autor se muestra optimista sobre las posibilidades, advierte que hay que ser cautelosos con algunas áreas en las que se está produciendo un deslizamiento que, si se descontrolara, podría ser muy peligroso. En concreto, si sucediera esta "colonización" del lenguaje de la inclusión, éste ya no tendría sentido, y el resurgimiento del movimiento eugenésico podría socavar muchos de los avances de las últimas décadas de trabajo. Mientras tanto, hay historias por todo el mundo que permiten vislumbrar el futuro que queremos.

Cuaternario y geomorfología de Argentina : Distribución y características de los principales depósitos y rasgos geomorfológicos

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Fuks, Enrique Eduardo; Pisano, María Florencia

2017-01-01

La necesidad de contar con información sobre la distribución y características de los depósitos cuaternarios de Argentina, los rasgos geomorfológicos que ellos representan y los procesos que los originaron, nos ha llevado a tratar de reunir en un sólo volumen estos aspectos que, en general, se presentan dispersos en publicaciones individuales, haciéndose muy difícil para el estudiante poder abarcarlos. En este sentido, textos de Geomorfología hay muchos y buenos, con diferentes ópticas y acce...

La protección del patrimonio marítimo flotante español : Análisis y recomendaciones

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Lagarda Salazar, Helena

2014-01-01

Se entiende por patrimonio histórico el conjunto de bienes, tanto materiales como inmateriales, acumulados a lo largo del tiempo y preservados para poder mostrar la vida y cultura de una sociedad años atrás. Hay muchos tipos de patrimonio distintos, pero en el caso del presente proyecto se estudia y analiza el patrimonio marítimo flotante, conocido más comúnmente como buque histórico, es decir, embarcaciones tradicionales que en su proceso de construcción se utilizaron técnicas artes...

Aproximación y medición del comercio electrónico : principales datos a nivel nacional

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Núñez Letamendía, Laura; Lisbona Fuentes, Lucía

2001-01-01

En los últimos dos años se han generado grandes expectativas en torno a las posibilidades y beneficios que el desarrollo de Internet y del comercio electrónico puede introducir en la economía y la sociedad, a pesar de que son muchas las incertidumbres relativas a ambos fenómenos. Sólo recientemente parece haberse instaurado cierto sosiego, reconociéndose que son todavía muchos los obstáculos que hay que salvar para que el desarrollo de ambos se generalice. El artículo presenta ...

La disputa por la república en el siglo XIX y la prensa en México

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Toussaint, Florence

2006-01-01

A partir de la consumación de la independencia, se inicia la disputa por definir el tipo de gobierno que había de asumir el país. Esta oscila entre la República federal y la centralista durante casi todo el tiempo, aunque hay dos momentos en los cuales la forma monárquica aparece como opción. Se conoce a estos periodos como el Primer Imperio y el Segundo Imperio. No duran muchos años. Sin embargo, dan lugar a enconadas luchas internas, sobre todo durante la presencia de...

Una revisión sistemática de problemas de calidad en los datos en tareas de descubrimiento de conocimiento

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Corrales, David Camilo; Ledezma, Agapito Ismael; Corrales, Juan Carlos

2016-01-01

Hay un gran crecimiento en el volumen de datos porque las organizaciones capturan permanentemente la cantidad colectiva de datos para lograr un mejor proceso de toma de decisiones. El desafío mas fundamental es la exploración de los grandes volúmenes de datos y la extracción de conocimiento útil para futuras acciones por medio de tareas para el descubrimiento del conocimiento; sin embargo, muchos datos presentan mala calidad. Presentamos una revisión sistemática de los asuntos de calidad de d...

Presentación

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CABALLERO ACOSTA, JOSÉ HUMBERTO

2010-01-01

Infortunadamente hay que insistir en la dificultad que se presenta para mantener una revista con ésta temática en Colombia, cosa que parece bastante paradójica ya que de otro lado, el país experimenta un aumento generalizado y sostenido de la inversión en nuevos y grandes proyectos de minería e infraestructura, en los cuales se adelantan estudios e investigaciones geológicas, de mucho interés para la comunidad científica y que normalmente se quedan en los grandes e inaccesibles volúmenes que...

En el entorno del teorema Kou-Ku (II)

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Ramírez, Angel; Usón, Carlos

2004-01-01

Nos son tan habituales algunas cosas que no nos sorprendemos ante ellas ni nos paramos a pensar acerca de su significado profundo o sobre la maravilla de su gestación, perdida a veces en la noche de los tiempos. Considerado en abstracto, como una relación entre superficies de figuras descontextualizadas, ¡no es nada evidente el teorema de Pitágoras!, pero hay muchos problemas de tipo práctico que obligan a pasar obligatoriamente por el ángulo recto. ¿Cómo construir si no, por ejemplo, un edif...

MICROCONTAMINANTES EMERGENTES EN AGUAS: TIPOS Y SISTEMAS DE TRATAMIENTO

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Yolanda Patiño; Eva Díaz; Salvador Ordóñez

2014-01-01

En el presente artículo se revisan las distintas clases de contaminantes emergentes, su origen y uso, y su presencia en las cuencas españolas, tanto en aguas superficiales como subterráneas. Los microcontaminantes emergentes son compuestos de distinto origen y naturaleza que hasta ahora habían pasado inadvertidos debido a su baja concentración (en el orden de las ppb) y sobre los que no hay regulación específica. Están divididos en seis grandes grupos y muchos de ellos se comportan como disru...

Basura y más basura

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Sharon Begley

2015-01-01

Full Text Available El basurero más grande del mundo está en los Estados Unidos(Fresh Kills Los norteamericanos producen 160 millones de toneladas de basura al año. Y no hay donde meterla. Se habla del exceso de papel,de los plásticos y se trabaja en favor de la reducción de fuentes de basura, lamentando el que los norteamericanos no sean adeptos a sacrificarse por el bien común pese a ser en muchos casos los causantes de las grandes tragedias del mundo .

Cartagena de indias en la historia de la lucha por la justicia en el siglo XVI

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José María Arévalo

1963-04-01

Full Text Available A juzgar por los libros y opúsculos que en Colombia se publican creemos que es bastante lo que hay que hacer para llevar a nuestros historiadores al convencimiento de que mucho antes de 1810 ya habían sonado voces de libertad en nuestra patria; que la dignidad humana y los derechos de los naturales ya habían sido públicamente defendidos y no por abogados cualesquiera sino por los más calificados teólogos que tuvo la Iglesia en el siglo XVI.

Traumatismo craneal por caída accidental en niños menores de dos años de edad. Mecanismos de producción, consecuencias y diagnóstico diferencial con las lesiones causadas por maltrato infantil.

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Trenchs Sainz de la Maza, Victoria

2008-01-01

1. INTRODUCCIÓN:Muchos padres relatan una caída con traumatismo craneal (TCE) para justificar hematomas subdurales (HSD) y/o hemorragias retinianas (HR) debidas a maltrato. El diagnóstico diferencial entre TCE accidental e inflingido en ausencia de otras lesiones es difícil porque no hay estudios que determinen la prevalencia de HSD y/o HR en los traumatismos por caídas.2. HIPÓTESIS:- El mecanismo de producción y la altura de un caída condicionan las lesiones que aparecen en el niño.- El cono...

Acoso escolar

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Armero Pedreira, P.; Bernardino Cuesta, B.; Bonet de Luna, C.

2011-01-01

El bullying, acoso escolar o violencia entre iguales, produce mucho sufrimiento en quienes lo padecen. Aunque tradicionalmente se suele enfatizar la relación acosador-acosado, hay más actores. Tanto por la angustia que causa a la víctima, por el refuerzo que recibe el acosador cuyas conductas agresivas quedan impunes, como por la insensibilización o indefensión aprendida de los espectadores, debe ser abordado como un problema grupal y social. El mejor tratamiento es la prevención y se debe tr...

LAS MATEMÁTICAS Y EL ARTE: propuesta de intervención en Educación Infantil.

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Bejarano-García, María

2015-01-01

Las matemáticas escolares, en muchas ocasiones, resultan alejadas de la realidad y sin aparente aplicabilidad en la vida cotidiana. Partiendo de la idea de que el aprendizaje de las matemáticas está cargado de connotaciones negativas, el trabajo que se presenta ha sido diseñado desde el convencimiento de que hay otra forma de aprender matemáticas mucho más activa, lúdica y natural, haciendo de ellas una herramienta funcional para el conocimiento del entorno que rodea al niño. Para ello, se ha...

Las Microfinanzas en el Ecuador y su contribución en la reducción de la pobreza.

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Martínez Mora, Magdalena

2008-01-01

En todas las ciudades y países del mundo existe la pobreza, esto es personas que no disponen de los recursos económicos suficientes para cubrir sus necesidades básicas y las de sus familias, aun cuando en algunos países existe mayor número de pobres que en otros. Igualmente hay personas solidarias con imaginación y perseverancia dispuestas a contribuir para que otros que tienen mucho menos, o carecen aparentemente de todo puedan forjar alguna actividad productiva que sea duradera y le perm...

Seguridad residual en los forjados con corrosión severa

OpenAIRE

VERCHER SANCHIS, JOSÉ MARÍA

2013-01-01

En muchos casos de forjados con patología severa se observa que no existen daños importantes en los elementos constructivos. Incluso con todos los nervios con la armadura inferior corroída en muchas ocasiones no hay una fisuración alarmante ni de solados ni de tabiquería. Esta investigación analiza los mecanismos resistentes que colaboran y evalúa la seguridad remanente para los casos de corrosión en los forjados más habituales en los edificios de viviendas: los forjados unidireccionales...

Preconcepciones de ciencia y tecnología en los profesores de bachillerato: un estudio empírico en el estado de Guanajuato

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Rebollo León, Jorge Luis

2008-01-01

En este artículo se presenta un estudio empírico con profesores que enseñan ciencias naturales a nivel Bachillerato. Actualmente muchos profesores mantienen una imagen deformada de lo que es la ciencia y la tecnología. Algunos la conciben como un conocimiento acabado e infalible, otros como una actividad a-histórica y a-problemática o bien hay quienes la conciben como un quehacer elitista y descontextualizado. El propósito de este estudio es conocer cuáles son las preconcepciones sobre la...

メキシコにおける子どもの保護にかんする歴史研究序説 : 19世紀後半のメキシコ・シティを中心に

OpenAIRE

青木, 利夫

2015-01-01

Referente a la historia sobre la infancia en México, relativamente no hay muchos estudios, si se comparan con los estudios históricos sobre otros temas, por ejemplo: el político, el económico, el social, el cultural y el educativo. Sin embargo, desde finales del siglo pasado hasta la fecha se han reunido varios estudios sobre la historia de la infancia enfocando los conceptos, los discursos y las representaciones de la niñez, los trabajos infantiles y la protección de los niños, la literatura...

Citizenship deficits in Latin America's democracies

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Maxwell A. Cameron

2007-01-01

Hay poca evidencia de una crisis de la democracia electoral en América Latina, sin embargo muchos regímenes democráticos de la región son inestables. Recientemente, las democracias latinoamericanas han sido amenazadas más por las acciones inconstitucionales e ilegales de líderes elegidos democráticamente que por intentos de golpe de Estado o fraude sistemático electoral. La separación de poderes es a veces violada en forma sutil sin que interrumpa necesariamente la democracia electoral. Tales...

U.S. Department of Education Fulbright-Hays Seminars Abroad Program, Malaysia June 26 - July 24, 1993. Participants' Reports.

Science.gov (United States)

Malaysian-American Commission on Educational Exchange, Kuala Lumpur.

This document contains reports by 14 participants of a Fulbright-Hays seminar in Malaysia. Participants were introduced to Malaysia and the Malaysian way of life through talks, discussion and field trips to schools, and educational institutions and cultural centers throughout the country. At every location the group was given presentations on…

¿Puede la teoría de los modos de pensamiento explicar algunas de las diferencias entre la corriente principal en economía y la keynesiana/postkeynesiana?

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Jorge García-Arias

2009-01-01

En este trabajo ofrecemos una posible explicación de las diferencias entre la corriente principal y la escuela keynesiana/postkeynesiana en Economía. Recurriendo a la dicotomía establecida por Sheila Dow entre el Modo de Pensamiento Cartesiano/Euclídeo (un sistema cerrado, atómico y dual) y el Babilónico/Estoico (un sistema abierto, orgánico y no dual), realizamos una aproximación a las diferencias metodológicas de ambas corrientes y mostramos cómo el empleo de diferentes modos de pensamiento...

UN NUEVO ENFOQUE DEL CONTROL POR MODO DESLIZANTE PARA SISTEMAS MULTIVARIABLES

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Rafael Angel Orellana Prato

2016-09-01

Full Text Available Este trabajo presenta el diseño de un sistema de control por modo deslizante (SMCr basado en alimentación adelantada (feedforward aplicado a un sistema multivariable, sintonizado para especificaciones de la respuesta transitoria, usando modelos de primer orden más tiempo muerto (POMTM. Como caso de estudio se presenta el modelo multivariable de dos entradas y dos salidas de una columna de destilación Wood and Berry, la cual presenta un alto índice de interacción. Las pruebas demostraron que la estrategia de control propuesta mejora el desempeño de un sistema de control multivariable ante cambios en los valores de referencia y rechazo a las perturbaciones, sin embargo, el tiempo de establecimiento de las variables controladas aumenta producto de dinámica considerada en el desacoplamiento. Se comprobó que en sistemas con alta interacción las señales de control tienen cambios más suaves lo que indica menor desgaste en los elementos finales de control.

Percepções sobre adoção e aconselhamento de modos de vida saudáveis por profissionais de saúde

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Taís Rocha Figueira

Full Text Available O artigo teve como objetivo comparar a percepção de profissionais da atenção primária sobre aconselhamento de modos de vida saudáveis antes e depois de uma intervenção educativa. Trata-se de estudo qualitativo desenvolvido com 22 profissionais de um centro de saúde de Belo Horizonte, Minas Gerais. A entrevista estruturada foi aplicada antes e depois da intervenção educativa, e os dados foram submetidos à análise de conteúdo. Os resultados mostram a dificuldade dos profissionais em adotar e aconselhar modos de vida saudáveis, com poucas mudanças em suas percepções após a intervenção educativa. As dificuldades estavam relacionadas a questões financeiras, culturais, de vida e de trabalho, bem como a concepções conservadoras. Predominou a prática curativista com responsabilização individual e o enfoque sobre hábitos alimentares e de atividade física. Identificou-se que, após a intervenção educativa, um número maior de profissionais estava sensibilizado quanto às atividades educativas coletivas e lúdicas e à importância da atuação multiprofissional. Assim, é vista a necessidade de continuidade da educação permanente dos profissionais de modo que permita a reflexão sobre concepções de saúde possíveis no contexto contemporâneo, favorecendo a produção do cuidado e da autonomia.

(D)Enunciar Modos de Ação Pedagógica em Contexto Pré-Escolar

OpenAIRE

Silva, Mariana

2013-01-01

No âmbito da unidade curricular Prática de Ensino Supervisionada em Educação Pré-escolar, foi elaborado o presente relatório final referente a nossa prática de ensino supervisionada. Este tem como objetivo central a reflexão sobre a ação, nomeadamente acerca dos modos de ação pedagógica. Orientadas pela estratégia metodológica da investigação-ação, desenvolvemos um projeto em rede (Katz, 2009) sustentado na pedagogia em participação através do qual mobilizamos as distintas áreas de conteúd...

Periferia. La heterotopía del no-lugar

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Pablo Ocampo Failla

2004-05-01

Full Text Available Hay momentos de la ciudad donde nadie ni nada permanece. Para definir el modo en que se habita en ellos es necesario descubrir la identidad de quién se desplaza a través de la ciudad. Una tarea bastante difícil, si se considera que el tránsito siempre viene acompañado de una pérdida de identidad.

Una herramienta para la inclusión de alumnos/as con necesidades educativas especiales: el aprendizaje cooperativo

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Javier FERNÁNDEZ-RÍO

2009-11-01

Full Text Available RESUMEN: La atención del alumnado con necesidades educativas especiales en la Enseñanza Secundaria debe hacerse de una manera adecuada en todos los sentidos. Muchos consideran que con situar a este tipo de alumnado dentro de las aulas es suficiente; pero no se dan cuenta de que existen muchos alumnos/as de este tipo, y que para darles un tratamiento adecuado real hay que emplear métodos de enseñanza adecuados como parece ser el aprendizaje cooperativo.ABSTRACT: The treatment of students with special needs in Secondary Education has to be done in a proper way. Many believe that it is enough when you place those type of students in regular classrooms; but they do not realize that there are many of this type of students, and if you want to give them a real and adequate response you have to use adequate teaching methods like the cooperative learning seems to be.

Effect of undigested neutral detergent fiber content of alfalfa hay on lactating dairy cows: Feeding behavior, fiber digestibility, and lactation performance.

Science.gov (United States)

Fustini, M; Palmonari, A; Canestrari, G; Bonfante, E; Mammi, L; Pacchioli, M T; Sniffen, G C J; Grant, R J; Cotanch, K W; Formigoni, A

2017-06-01

The objective of this study was to investigate the effects of 2 alfalfa hays differing in undigested neutral detergent fiber content and digestibility used as the main forage source in diets fed to high producing cows for Parmigiano-Reggiano cheese production. Diets were designed to have 2 different amounts of undigestible NDF [high (Hu) and low (Lu)], as determined by 240-h in vitro analysis (uNDF 240 ). Alfalfa hay in vitro digestibility [% of amylase- and sodium sulfite-treated NDF with ash correction (aNDFom)] at 24 and 240 h was 40.2 and 31.2% and 53.6 and 45.7% for low- (LD) and high-digestibility (HD) hays, respectively. The 4 experimental diets (Hu-HD, Lu-HD, Hu-LD, and Lu-LD) contained 46.8, 36.8, 38.8, and 30.1% of alfalfa hay, respectively, 8.6% wheat straw, and 35.3% corn (50% flake and 50% meal; DM basis). Soy hulls and soybean meal were used to replace hay to balance protein and energy among diets. Eight multiparous Holstein cows (average milk production = 46.0 ± 5.2 kg/d, 101 ± 38 d in milk, and 662 ± 42 kg of average body weight) were assigned to a 4 × 4 Latin square design, with 2 wk of adaptation and a 1-wk collection period. Dry matter and water intake, rumination time, ruminal pH, and milk production and composition were measured. Diets and feces were analyzed for NDF on an organic matter basis (aNDFom), acid detergent fiber, acid detergent lignin, and uNDF 240 to estimate total-tract fiber digestibility. Dry matter intake and rumination times were higher in HD diets compared with LD diets, regardless of forage amount. Rumination time was constant per unit of dry matter intake but differed when expressed as a function of uNDF 240 , aNDFom, or physically effective NDF intake. No differences were found among treatments on average ruminal pH, but the amount of time with pH digestible neutral detergent fiber fraction digestibility was higher for the LD diets (88.3 versus 85.8% aNDFom in HD), for which lower feed intakes were also observed. The

Modo de produção da existência: categoria chave para a compreensão da problemática do lazer

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Elza Margarida de Mendonça Peixoto

2014-11-01

Full Text Available A partir da crítica aos limites no modo como os estudos do lazer apropriam a noção de trabalho na obra de Marx e Engels, o artigo recupera a estrutura mais ampla na qual esta categoria está inscrita no pensamento daqueles autores, retomando a centralidade da categoria modo de produção da existência enquanto categoria estrutural daquele pensamento. Este movimento é feito com a finalidade de indicar a categoria central  para a explicação do movimento histórico real que engendra o lazer enquanto uma prática dos homens que – no capitalismo – encontra-se subordinada – o tempo, a atividade e a subjetividade – à lei econômica do movimento da sociedade moderna, na qual estão em movimento forças que contraditória e dialeticamente estão produzindo outra conjuntura.

MODELACIÓN DE VIAJES INTERURBANOS DE PASAJEROS EN SISTEMAS INTERMODALES DE BAJA DEMANDA

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Thomas Edison Guerrero Barbosa

Full Text Available Son frecuentes los casos en los que se plantea evaluar opciones para el mejoramiento en el nivel de servicio de un sistema de transporte en el contexto interurbano, siendo este el caso del corredor del Magdalena Medio en Colombia, donde hay tres modos en interacción: carretero, fluvial y ferroviario. Para la planificación de este tipo de sistema para transporte de pasajeros, caracterizado por su baja demanda, se propone un enfoque metodológico que incluye la toma de información directa en puertos, terminales y a bordo de vehículos, involucrando las características que definen el nivel de servicio de los modos y complementada con encuestas de Preferencias Reveladas (PR y de Preferencias Declaradas (PD, lo cual sigue el desarrollo de modelos para estimar la demanda. Como parte de la modelación se especifica una red intermodal, para lo cual fue necesario realizar un inventario de los servicios y de las características de los arcos. Un aspecto interesante es que el enfoque metodológico ha permitido la combinación de distintas fuentes de información, provenientes de datos agregados y de encuestas a individuos tanto de PR como de PD. La experiencia práctica demuestra que se pueden presentar inconvenientes en las especificaciones en los modelos cuando las interacciones en los atributos o los efectos de las variables no incluidas apropiadamente afectan decisiones individuales. La aplicación demuestra que hay percepciones subjetivas fuertemente asociadas a un modo de transporte que afectan significativamente la elección.

Utilización de las redes sociales y de una plataforma virtual por los alumnos de la facultad de ciencias de la salud

OpenAIRE

Rivas Velasco, Ana; García Martínez, Olga; Luna Bertos, Elvira de; Ramos Torrecillas, Javier; Díaz Rodríguez, Lourdes

2011-01-01

Las redes sociales y las plataformas virtuales, tienen mucho que ver con las nuevas metodologías activas y participativas que de modo masivo se están adoptando en el Espacio Europeo de Educación Superior. El objetivo del presente trabajo fue evaluar el uso de las redes sociales y la plataforma virtual SWAD por parte del alumnado de Facultad de Ciencias de la Salud de la Universidad de Granada. En el curso 2010/2011 se ha realizado una encuesta sobre el uso de las TICs a los alu...

Proyecto de producción y comercialización de compota de zanahoria blanca en la ciudad de Guayaquil

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Cedeño Cáceres, Karla Paola; Quimí Lino, Manuel Enrique; Rivera Flores, Stalin

2013-01-01

El proyecto a emprender se encuentra enfocado en la elaboración y producción de la compota de zanahoria blanca en la ciudad de Guayaquil, teniendo como materia prima la zanahoria blanca, que con sus propiedades nutritivas aún desconocida por muchos, esta cuenta con un gran valor nutricional el cual con nuestro proyecto pretendemos dar a conocer, de modo que podemos aprovechar la ventaja de que aún no existe en el mercado un producto con estas características. Este sería un prod...

Giardia y giardiasis Giardia and giardiasis

OpenAIRE

Hugo D. Luján

2006-01-01

Giardia lamblia es un protozoario parásito que habita el intestino delgado de los seres humanos y de muchos otros vertebrados y es una de las más comunes causas de diarrea en todo el mundo. Durante su ciclo de vida Giardia sufre significativos cambios bioquímicos y morfológicos que le permiten sobrevivir en ambientes y condiciones que de otro modo lo destruirían. Para sobrevivir fuera del intestino del hospedador, los trofozoítos de Giardia se diferencian a quistes, los que se caracterizan po...

Sistema de control para una cerradura electrónica mediante módulo GSM combinado con microcontrolador PIC18F2520 y tarjetas "smartcard"

OpenAIRE

Asensio Duarte, José

2013-01-01

mayor y más fácil acceso a una gran variedad de servicios y aplicaciones. Muchas herramientas, como teléfonos móviles o ordenadores han evolucionado de tal modo que han pasado de ser un producto extravagante y que requería un conocimiento alto de su funcionamiento para aprovechar sus capacidades, a ser elementos cotidianos del día a día de los que ahora nos es imposible separarnos. No obstante, son muchos esos productos que se han quedado estancados en su manera de funcionar...

Bio/neurofeedback

OpenAIRE

Carrobles, José Antonio

2016-01-01

Resumen Las técnicas de biofeedback (BF) desarrolladas desde los años 60 por la psicología tienen ya una larga historia, en la que han demostrado su utilidad y eficacia terapéutica en una considerable variedad de trastornos clínicos: neurológicos, neuromusculares, cardiovasculares, gastrointestinales, dolores crónicos, problemas dermatológicos, de sueño, respiratorios, trastornos traumáticos y de estrés, entre muchos otros. Entre las aplicaciones prácticas del BF destaca de modo especial el b...

Imagen y elementos no verbales en informaciones políticas televisivas

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María Reyes Domínguez Lázaro

2009-12-01

Full Text Available Destaca la importancia de la imagen, del lenguaje y otros elementos no verbales que intervienen en la comunicación. De este modo no basta con el dominio exhaustivo de las palabras orales, sino de todas aquellas no manifiestas pero si evocadoras en la mente de los telespectadores. La sociedad del siglo XXI es la sociedad de la imagen, y como tal, debe ser considerada y tenida en cuenta en cualquier proceso comunicativo y, mucho más cuando se trata de la televisión.

Effect of Lactic Acid Lactobacillus Preservative and Moisture Level at Baling on In-situ Digestibility of Crabgrass Hay by Heifers.

Science.gov (United States)

Common crabgrass (Digitaria ciliaris [Retz.] Koel.) is a warm-season annual that offers an advantage over many perennial warm-season grasses because of its greater nutritive value and high palatability. However, little is known about how baling crabgrass hay at high moisture affects ruminal forage ...

A Ramón Valdés, In Memoriam.

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Joan Prat

2012-06-01

Full Text Available I. Cuando Verena Stolcke y poco después Aurelio Díaz me invitaron a participar en este acto de homenaje y memoria a Ramón Valdés del Toro pensé, en primer lugar,que prepararía algo sobre el papel de Ramón en los inicios de la Antropología española.Comencé a escribirlo pero resultaba un texto demasiado erudito, aburrido y difícil de digerir. En esta situación de stand by agradecí un correo electrónico de Verena en el que se nos instaba a “intervenir a vuestro aire en torno a vuestros recuerdos personales del magisterio y de la obra de Ramón”. Respiré aliviado ya que esto me resultaba mucho más cómodo y gratificante. En las líneas que siguen no he dedicado mucho esfuerzo a disimular el tono coloquial que tuvo la intervención oral.

Modo de inicio de las taquiarritmias ventriculares en la cardiopatía chagásica crónica

OpenAIRE

Rabinovich,Rafael F; Muratore,Claudio A; Baranchuk,Adrián

2008-01-01

Objetivo: El objetivo del estudio fue investigar el modo de inicio de las taquiarritmias ventriculares malignas (taquicardia/fibrilación ventricular) en pacientes con cardiopatía chagásica crónica, portadores de un cardiodesfibrilador implantable. Métodos: Se analizaron 179 episodios espontáneos de taquiarritmia ventricular a través de electrogramas endocavitarios almacenados en los cardiodesfibriladores de 15 pacientes con cardiopatía chagásica crónica. Se objetivaron 2 tipos de secuencia de...

Gas Exchanges and Dehydration in Different Intensities of Conditioning in Tifton 85 Bermudagrass: Nutritional Value during Hay Storage

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M. Pasqualotto

2015-06-01

Full Text Available The present study aimed at evaluating the intensity of Tifton 85 conditioning using a mower conditioner with free-swinging flail fingers and storage times on dehydration curve, fungi presence, nutritional value and in vitro digestibility of Tifton 85 bermudagrass hay dry matter (DM. The dehydration curve was determined in the whole plant for ten times until the baling. The zero time corresponded to the plant before cutting, which occurred at 11:00 and the other collections were carried out at 8:00, 10:00, 14:00, and 16:00. The experimental design was randomised blocks with two intensities of conditioning (high and low and ten sampling times, with five replications. The high and low intensities related to adjusting the deflector plate of the free iron fingers (8 and 18 cm. In order to determine gas exchanges during Tifton 85 bermudagrass dehydration, there were evaluations of mature leaves, which were placed in the upper middle third of each branch before the cutting, at every hour for 4 hours. A portable gas analyser was used by an infrared IRGA (6400xt. The analysed variables were photosynthesis (A, stomatal conductance (gs, internal CO2 concentration (Ci, transpiration (T, water use efficiency (WUE, and intrinsic water use efficiency (WUEi. In the second part of this study, the nutritional value of Tifton 85 hay was evaluated, so randomised blocks were designed in a split plot through time, with two treatments placed in the following plots: high and low intensity of cutting and five different time points as subplots: cutting (additional treatment, baling and after 30, 60, and 90 days of storage. Subsequently, fungi that were in green plants as well as hay were determined and samples were collected from the grass at the cutting period, during baling, and after 30, 60, and 90 days of storage. It was observed that Tifton 85 bermudagrass dehydration occurred within 49 hours, so this was considered the best time for drying hay. Gas exchanges were

Effect of a commercial anion dietary supplement on acid-base balance, urine volume, and urinary ion excretion in male goats fed oat or grass hay diets.

Science.gov (United States)

Stratton-Phelps, Meri; House, John K

2004-10-01

To determine whether feeding a commercial anionic dietary supplement as a urinary acidifier to male goats may be useful for management of urolithiasis. 8 adult sexually intact male Toggenburg, Saanen, and Nubian goats. Goats were randomly assigned by age-, breed-, and weight-matched pairs to an oat or grass hay diet that was fed for 12 days. On days 13 to 14 (early sample collection time before supplementation), measurements were made of blood and urine sodium, potassium, calcium, magnesium, chloride, phosphorus, and sulfur concentrations; blood and urine pH; urine production; and water consumption. During the next 28 days, the anionic dietary supplement was added to the oat and grass hay diets to achieve a dietary cation-anion difference of 0 mEq/100g of dry matter. Blood and urine samples were analyzed during dietary supplementation on days 12 to 13 (middle sample collection time) and 27 to 28 (late sample collection time). Blood bicarbonate, pH, and urine pH of goats fed grass hay and goats fed oat hay were significantly decreased during the middle and late sample collection times, compared with the early sample collection time. Water consumption and urine production in all goats increased significantly during the late sample collection time, compared with the early sample collection time. The anionic dietary supplement used in our study increases urine volume, alters urine ion concentrations, and is an efficacious urinary acidifier in goats. Goats treated with prolonged anionic dietary supplementation should be monitored for secondary osteoporosis from chronic urinary calcium loss.

Effects of including saponins (Micro-aid®) on intake, rumen fermentation, and digestibility in steers fed low-quality prairie hay

Science.gov (United States)

Sixteen ruminally-cannulated crossbred steers (529 ± 45 kg initial body weight, BW) were used to evaluate in situ dry matter (DM), neutral detergent fiber (aNDF), and N degradation characteristics of low quality prairie hay, blood urea nitrogen (BUN) and rumen fermentation parameters in steers provi...

¿Puede la teoría de los modos de pensamiento explicar algunas de las diferencias entre la corriente principal en economía y la keynesiana/postkeynesiana?

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Jorge García-Arias

2009-01-01

Full Text Available En este trabajo ofrecemos una posible explicación de las diferencias entre la corriente principal y la escuela keynesiana/postkeynesiana en Economía. Recurriendo a la dicotomía establecida por Sheila Dow entre el Modo de Pensamiento Cartesiano/Euclídeo (un sistema cerrado, atómico y dual y el Babilónico/Estoico (un sistema abierto, orgánico y no dual, realizamos una aproximación a las diferencias metodológicas de ambas corrientes y mostramos cómo el empleo de diferentes modos de pensamiento implica formas diferentes de entender y practicar la Economía.

Children and adolescents' health-related quality of life in relation to eczema, asthma and hay fever: results from a population-based cross-sectional study.

Science.gov (United States)

Matterne, Uwe; Schmitt, Jochen; Diepgen, Thomas L; Apfelbacher, Christian

2011-10-01

Several studies have looked at the relationship between childhood atopic disease and health-related quality of life (HRQoL), but existing research is limited by selected populations, small samples or lack to consider each of the three atopic conditions simultaneously. Impact of 4-week and 12-month occurrences of the three conditions on HRQoL were analysed by the use of complex sample general linear models alone and adjusted for the other atopic conditions, sociodemographics and mental health in a population-based sample (n = 6,518) of children and adolescents aged 11-17. In univariate analyses, total HRQoL was significantly impacted by eczema and hay fever but not asthma with stronger effects for 4-week occurrence. In multivariate analyses, 12-month occurrence of hay fever and 4-week occurrence of eczema and hay fever significantly impacted on total HRQoL. Although most of the variance in HRQoL was explained by mental health, independent effects of the atopic conditions remained. Atopic conditions impact HRQoL over and above mental health. When analysing the relationship between atopic conditions and HRQoL, it is important to consider more immediate versus less immediate effects of the conditions. Extent of impairment and the domains affected appear to vary when different time intervals are used.

Effects of supplementation level and particle size of alfalfa hay on growth characteristics and rumen development in dairy calves

NARCIS (Netherlands)

Mirzaei, M.; Khorvash, M.; Ghorbani, G.R.; Kazemi-Bonchenari, M.; Riasi, A.; Nabipour, A.; Borne, van den J.J.G.C.

2015-01-01

The aim of this study was to assess the effects of particle size (PS) of alfalfa hay on growth characteristics and rumen development in dairy calves at two levels of alfalfa supplementation. Fifty newborn dairy calves (42.7 ± 2.2 kg BW) were used in a 2 × 2 factorial arrangement with the factors

A problemática da economia solidária: um novo modo de gestão pública?

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Genauto Carvalho de França Filho

Full Text Available Este artigo discute a economia solidária numa perspectiva internacional, situando o contexto de surgimento desse fenômeno e o tipo de problemática que ele suscita. Apresenta uma abordagem original para sua interpretação, baseado em argumentos da sociologia e da antropologia econômica, indicando o que tal fenômeno tem como elementos para a reflexão e a prática de um modo renovado de gestão pública.

MODOS DE RACIOCÍNIO DOS ESTUDANTES QUANDO A 3 a LEI DE NEWTON INTERVÉM NO ESTUDO DO FENÔMENO DO ATRITO

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Helena Caldas

Full Text Available Resumo: Este trabalho investiga os modos de raciocínio de uma população variada, quer pelo seu país de origem quer pelo seu nível de ensino, em situações onde a 3â lei de Newton intervém no estudo do fenômeno do atrito sólido seco. Por meio das análises de vários questionários descrevendo situações físicas onde dois ou três corpos estão em contato, são colocadas em evidência as características destes modos de raciocínio. Ainda, uma análise de livros didáticos mostra que os estudantes encontram, na grande maioria destes, elementos que alimentam o tipo de resultados encontrados. Como decorrência do conjunto dos resultados obtidos, algumas recomendações sobre o tratamento do tema do atrito serão sugeridas, no que se relaciona especificamente com os aspectos abordados no trabalho.

Confirmed Datura poisoning in a horse most probably due to D. ferox in contaminated tef hay : clinical communication

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R. Gerber

2006-06-01

Full Text Available Two out of a group of 23 mares exposed to tef hay contaminated with Datura ferox (and possibly D. stramonium developed colic. The 1st animal was unresponsive to conservative treatment, underwent surgery for severe intestinal atony and had to be euthanased. The 2nd was less seriously affected, responded well to analgesics and made an uneventful recovery. This horse exhibited marked mydriasis on the first 2 days of being poisoned and showed protracted, milder mydriasis for a further 7 days. Scopolamine was chemically confirmed in urine from this horse for 3 days following the colic attack, while atropine could just be detected for 2 days. Scopolamine was also the main tropane alkaloid found in the contaminating plant material, confirming that this had most probably been a case of D. ferox poisoning. Although Datura intoxication of horses from contaminated hay was suspected previously, this is the 1st case where the intoxication could be confirmed by urine analysis for tropane alkaloids. Extraction and detection methods for atropine and scopolamine in urine are described employing enzymatic hydrolysis followed by liquid-liquid extraction and liquid chromatography tandem mass spectrometry (LC/MS/MS.

Alfabetizando en geografía: medios y modos para educar la mirada de quienes comienzan en la comprensión de esta disciplina

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Carolina Andrea BadilloVargas

2017-01-01

Full Text Available En la etapa de escolarización, el estudiantado vivencia procesos de alfabetización múltiples (New London Group, 2000, debido a que cada disciplina llevada al currículo escolar posee formas especiales de construir conocimientos, a través de ciertos recursos, procedimientos y visiones de mundo, y formas de comunicarlos. Dicha construcción de significados situada es, entonces, particular según la comunidad disciplinar del profesor o profesora y su especialidad (Unsworth, 2001. Desde el enfoque de la semiótica social, el objetivo del presente estudio, enmarcado en el Proyecto Fondecyt 1130684, busca identificar cuáles son los medios y los modos semióticos con los que se alfabetiza en clases de geografía, para reconocer su potencial epistémico a través de las herramientas de la gramática visual (Kress y van Leeuwen, 1996. Este trabajo se basa en dos estudios de casos y el corpus está constituido por el registro audiovisual de unidades curriculares. Se realizó un inventario multimodal de los medios y los modos para comunicar (Kress, 2010 utilizados por dos profesores en la enseñanza de la geografía en primaria y secundaria en escuelas públicas en Chile. Los resultados muestran que el profesorado alfabetiza a través de distintos medios y modos, los cuales, en su mayoría, son visuales, algunos de ellos más complejos de comprender debido a la densidad y cantidad de símbolos a interpretar. Como resultado, el conocimiento en esta disciplina requiere ser aprendido y mediado de forma multimodal.

OS PROFETAS DE ISRAEL E INÁCIO DE LOYOLA - PISTAS PARA UM MODO INACIANO DE FAZER TEOLOGIA -

OpenAIRE

Jaldemir Vitório

2008-01-01

A espiritualidade inaciana, condensada nos Exercícios Espirituais de Santo Inácio, possibilita a produção de uma teologia profético-espiritual. O profetismo inaciano sintoniza-se com a grande tradição dos profetas bíblicos e seu modo peculiar de fazer e explicitar a experiência de Deus. A espiritualidade inaciana reflete-se na produção teológica de quem a assumiu como pauta de vida cristã. A teologia é produzida a partir do centramento em Deus, permitindo ao teólogo contemplar a realidade com...

Formulation of enzyme blends to maximize the hydrolysis of alkaline peroxide pretreated alfalfa hay and barley straw by rumen enzymes and commercial cellulases.

Science.gov (United States)

Badhan, Ajay; Wang, Yuxi; Gruninger, Robert; Patton, Donald; Powlowski, Justin; Tsang, Adrian; McAllister, Tim

2014-04-26

Efficient conversion of lignocellulosic biomass to fermentable sugars requires the synergistic action of multiple enzymes; consequently enzyme mixtures must be properly formulated for effective hydrolysis. The nature of an optimal enzyme blends depends on the type of pretreatment employed as well the characteristics of the substrate. In this study, statistical experimental design was used to develop mixtures of recombinant glycosyl hydrolases from thermophilic and anaerobic fungi that enhanced the digestion of alkaline peroxide treated alfalfa hay and barley straw by mixed rumen enzymes as well as commercial cellulases (Accelerase 1500, A1500; Accelerase XC, AXC). Combinations of feruloyl and acetyl xylan esterases (FAE1a; AXE16A_ASPNG), endoglucanase GH7 (EGL7A_THITE) and polygalacturonase (PGA28A_ASPNG) with rumen enzymes improved straw digestion. Inclusion of pectinase (PGA28A_ASPNG), endoxylanase (XYN11A_THITE), feruloyl esterase (FAE1a) and β-glucosidase (E-BGLUC) with A1500 or endoglucanase GH7 (EGL7A_THITE) and β-xylosidase (E-BXSRB) with AXC increased glucose release from alfalfa hay. Glucose yield from straw was improved when FAE1a and endoglucanase GH7 (EGL7A_THITE) were added to A1500, while FAE1a and AXE16A_ASPNG enhanced the activity of AXC on straw. Xylose release from alfalfa hay was augmented by supplementing A1500 with E-BGLUC, or AXC with EGL7A_THITE and XYN11A_THITE. Adding arabinofuranosidase (ABF54B_ASPNG) and esterases (AXE16A_ASPNG; AXE16B_ASPNG) to A1500, or FAE1a and AXE16A_ASPNG to AXC enhanced xylose release from barley straw, a response confirmed in a scaled up assay. The efficacy of commercial enzyme mixtures as well as mixed enzymes from the rumen was improved through formulation with synergetic recombinant enzymes. This approach reliably identified supplemental enzymes that enhanced sugar release from alkaline pretreated alfalfa hay and barley straw.

Desarrollo de técnicas avanzadas en la auscultación dinámica para la optimización del mantenimiento de vías férreas

OpenAIRE

Salvador Zuriaga, Pablo

2016-01-01

El mantenimiento de la vía se ha convertido en los últimos años en un tema verdaderamente relevante para la ingeniería ferroviaria debido a la necesidad de conseguir mejores niveles de calidad a menores costes. Para ello, no hay más remedio que incorporar a las filosofías y procedimientos tradicionales del mantenimiento y la auscultación de la vía nuevas técnicas, que en muchos casos están ampliamente desarrolladas en otros campos de la ingeniería. Así, este trabajo profundiza en las técn...

Efectos de la maprotilina sobre la evitacion inhibidora en ratones machos y hembras

OpenAIRE

Martos Mula, Ana Josefa

2002-01-01

RESUMEN Los antidepresivos constituyen un grupo de psicofármacos que son consumidos a gran escala debido a su uso en la depresión mayor, trastornos crónicos de ansiedad, y en otros cuadros clínicos. No obstante, muchos antidepresivos, aparte de su efecto terapéutico, también tienen efectos colaterales adversos sobre la memoria. A esto, hay que sumarle el hecho de que algunos trastornos (p.e. la depresión) por sí mismos también pueden producir daños en las funciones cognitivas. Por este mot...

La política como espectáculo

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Juan E. Fernández

2015-01-01

Full Text Available La política siempre estuvo ligada al espectáculo, la pompa y el teatro. La antigua oratoria imperial, eclesiástica y solemne; los debates cargados de ironías en asambleas y parlamentos; y los actuales espectáculos políticos televisados difieren más en la forma y el alcance (curiosamente más democrático que en su ausencia comunicacional. El autor piensa, que hay mucho de siniestro y peligroso en la trivialización del camino al poder cuando lo que está en juego parece ser la vida misma.

Suicidio en adultos mayores en Costa Rica durante el período 2010-2014

OpenAIRE

Vargas Sanabria, Maikel; Vega Chaves, Juan Carlos; Montero Solano, Gustavo; Hernández Romero, Gabriel

2017-01-01

Resumen:La población mayor de 65 años es un grupo vulnerable a cometer suicidio, con riesgo 1.5 veces mayor con respecto a los jóvenes. El envejecimiento y sus cambios retan al individuo, de manera que su fracaso predispone a conductas suicidas.Estas tienen mucho más probabilidad de ser letales en comparación con cualquier otro grupo etario. Hay poca investigación en relación con las características epidemiológicas asociadas a este tema. Este artículo pretende describir los principales factor...

Estudio sobre la invisibilización de la mujer en el entorno virtual de la Universidad de Málaga

OpenAIRE

Gómez Carrillo, Victoria del Rocío; Mena Rodríguez, Esther; Fausto Lizaola, Celia

2017-01-01

Se hace un recorrido por diversas páginas webs del entorno virtual de la Universidad de Málaga donde se puede comprobar que aunque hay algunos ápices a la hora de utilizar un lenguaje inclusivo, aun queda mucho por hacer en este tema para que realmente el lenguaje sea una representación fiel de la realidad que vivimos las trabajadoras de esta institución y de otras, ya que es una tónica general en la gran mayoría de las universidades que hemos analizado Universidad de Málaga. Campus de Exc...

Casos prácticos Normativa APA 6ª ed.

OpenAIRE

Guerras-Frías, Miroslava (tr)

2010-01-01

A la hora de realizar un trabajo es importante leer otros documentos relacionados para ver el estado de la cuestión, además de apoyarte en sus teorías para darle valor y peso a tu trabajo. Pero todo trabajo que este basado en otros debe de citar y tener sus referencias bibliográficas normalizadas. Para esto hay muchos estilos validos normalizados, el que aquí nos ocupa es sobre el estilo de la American Psychological Association, más conocido como Nomas o Estilo APA de la 6ª edición.

Superando barreras a base de ingenio

OpenAIRE

Núñez Valdés, Juan; Rodríguez Arévalo, María Luisa

2012-01-01

No hay la menor duda de que la mujer ha estado siempre muy discriminada con respecto al varón en el papel a desempeñar en todas las civilizaciones que se han desarrollado a lo largo de la historia, no comenzando a tener derechos iguales hasta hace relativamente muy poco tiempo, mucho menos de un siglo, y no habiéndose alcanzado esta igualdad todavía, ni muchísimo menos, en todos los países. En esta comunicación, además de poner de manifiesto este hecho, centrado sobre todo en l...

Valoración Médica de Psitácidas y Primates Neotropicales

OpenAIRE

Nestor Varela

2008-01-01

La evaluación clínica comienza desde el proceso de recepción, ya que permite hacer una apreciación sobre la urgencia del problema, si es que la hay. Aunque no es común en la práctica con especies silvestres, la comunicación telefónica previa al arribo del animal al consultorio, es útil para recolectar información y para dar recomendaciones sobre el transporte del espécimen. En muchos casos la recolección previa de datos importantes no sólo es útil para realizar un examen adecuado, sino tambié...

Aprendizaje significativo de la clasificación de los seres vivos en primero de la ESO

OpenAIRE

Grajeras Cid, Miriam

2013-01-01

En este trabajo fin de máster voy a abordar el tema de los seres vivos en 1º de la ESO ya que este fue el tema que impartí en el IESO Pedro de Atarrabia durante mi estancia en prácticas. En otras asignaturas del máster hemos visto como el alumnado de secundaria tiene muchos errores conceptuales, los cuales hay que corregir para que el alumnado tenga un aprendizaje significativo. Ante la dificultad de corregir estos errores, voy a desarrollar una propuesta didáctica en la que el alumnado apren...

Clínica. Localizaciones: rodilla, cadera, manos, columna, otras localizaciones

OpenAIRE

Martín, Álvaro Pérez

2014-01-01

La clínica que presentan estos pacientes difiere mucho de unos a otros, dependiendo especialmente de la localización de la artrosis, y no hay buena correlación entre la afectación radiológica y el dolor. Generalmente, la clínica es de inicio gradual y evolución lenta, aunque progresiva, y las articulaciones más afectadas son las rodillas, las caderas, las manos y la columna vertebral. Los principales síntomas y signos son el dolor, la rigidez, la deformidad articular y la crepitación. El dolo...

Fisiología de la retina II. Mensaje visual en la segunda sinapsis: células amacrinas

OpenAIRE

Urtubia Vicario, César

2005-01-01

La segunda sinapsis de la vía visual tiene lugar en la capa plexiforme interna, si bien hay muchos contactos sinápticos en la capa de las células ganglionares. Lás células amacrinas establecen sinapsis con células bipolares, entre sí, con células ganglionares, y como elemento pre y postsináptico de las células interplexiformes. Las células amacrinas modulan la respuesta directamente al actuar sobre las ganglionares o interaccionando entre sí. Esta acción, junto con la que las células horizont...

La evolución de los forjados de edificación hacia unas técnicas más competitivas económicamente

OpenAIRE

Vicente Navarro, Jonatan

2009-01-01

Los seres humanos vivimos en viviendas desde hace muchos siglos. Las hay de muchas maneras, pero en nuestro país, la gran mayoría de viviendas están construidas con materiales pétreos y metálicos. La gran mayoría de los edificios cuenta con más de un forjado con los que se realizan las plantas y cubiertas. Además, son los forjados los que reciben y reparten las cargas que actúan en el edificio y, también, nos permiten separar las plantas y dar diferentes usos al edificio. Ex...

Benditas Malas Costumbres

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Lanuza Sáenz, Lissete E. Lanuza Sáenz

2011-01-01

Una mirada a “Malas costumbres”, el primer libro de Enithzabel Castrellón Calvo, parece ser una invitación al disfrute. La portada nos recibe con una copa de vino levantada, quizás previendo cómo nos sentiremos al terminar de leerlo. Los 12 cuentos que componen esta entrega nos llevan a numerosos países, tiempos y lugares, para presentarnos a muchos personajes que parecen no tener nada en común. Hay, en el fondo, un hilo conector, esa humanidad que comparten, y que no puede ser más que ...

Evaluación externa de la calidad analítica en hematología: una necesidad en América Latina

OpenAIRE

Fink Nilda E.; Fernández Alberti Alejandra; Mazziotta Daniel

1997-01-01

La garantía de calidad analítica de un laboratorio clínico se logra mediante un sistema de control de calidad interno complementado por un programa de evaluación externa. Esa garantía es la base que fundamenta la confiabilidad de los resultados obtenidos por los laboratorios y su uso en el diagnóstico y tratamiento de las enfermedades. En los países de América Latina hay muchos laboratorios que no cuentan con sistemas apropiados de evaluación y control de la calidad. Dada la importancia de lo...

Epilepsia y mujer

Directory of Open Access Journals (Sweden)

S. Andrea Contreras, Dra.

2013-11-01

Full Text Available Hay muchos aspectos por abordar en el manejo de las mujeres con epilepsia, relacionados con su rol en la reproducción. Algunos de éstos necesitan ser considerados en la adolescencia, otros están relacionados con el embarazo, afectando tanto a la madre como a su hijo, y algunos con el ciclo menstrual y la menopausia. Esta revisión considera la epilepsia catamenial, contracepción, fertilidad, teratogenicidad y menopausia. También se discuten los efectos del embarazo en el control de las crisis y los efectos de las crisis sobre el feto.

APLICACIÓN DE LA TEORÍA DE COLAS Y DE LA SIMULACIÓN AL EMBARQUE DE MINERAL DE HIERRO Y MANGANESO EN LA TERMINAL MARÍTIMA DE PONTA DA MADEIRA

OpenAIRE

Camelo, Gustavo Rossa; Coelho, Antônio Sérgio; Borges, Renata Massoli

2010-01-01

De entre las principales técnicas disponibles utilizadas en procesos de análisis y resolución de problemas sobresalen la Teoría de Colas y la Teoría de la Simulación: aquella, un método analítico para abordaje del asunto; esta, una técnica de modelaje que busca mejor representar el sistema en estudio. El uso de estas técnicas de modelaje, para resoluciones de problemas complejos y dinámicos, tiene crecido mucho en los últimos años, aunque, hay una carencia perceptible en la literatura de apli...

UN ESTUDIANTE CONFLICTIVO PARA MUCHOS, ES EN REALIDAD UN PERSONAJE CON MUCHO QUE DAR

Directory of Open Access Journals (Sweden)

LEIDY NATALY MATEUS AGUILERA

2010-08-01

Full Text Available In this written presents a history that is repeat year to year for some educators that have as a goal to formation in aspects of type scientific and also as corresponding to social values; there is also a reflection that leads to evidence of bias, prejudice and the exclusion that is made, in some cases in the classroom, to students that present some difficulties, aspect that affects the formation of the student, the learning and evaluation. In the same way is presented as a suggestion the inclusion of values in the classroom regardless the area of knowledge, based on of a pedagogical model and psychological currents that allow establish academic links and reflections in the formation of human being.

Estado nutricional y aspectos alimentarios de mujeres indígenas del departamento de Presidente Hayes, Paraguay

OpenAIRE

Gloria Echagüe; Valentina Díaz; Laura Mendoza; Pamela Mongelos; Graciela Giménez; Malvina Paez; Florentina Laspina; Amalia Castro; María Isabel Rodríguez; Patricia Araújo; Wilberto Castro; Ramón Marecos; Santiago Evers; Gerardo Deluca; Alejandra Picconi

2015-01-01

Introducción: Las comunidades indígenas presentan un mayor riesgo de inseguridad alimentaria y malnutrición, menor disponibilidad de recursos, y una creciente dependencia de alimentos más baratos aunque con un alto grado de procesamiento. Objetivo: Identificar el estado nutricional y aspectos alimentarios en mujeres indígenas de tres comunidades del Departamento de Presidente Hayes, Chaco Paraguayo. Metodología: Estudio observacional de diseño transversal con componente analítico, que incluyó...

Contraste experimental de un modelo probalístico para el dimensionamiento de elementos de vidrio plano con consideraciones de modo mixto de carga

Directory of Open Access Journals (Sweden)

García Prieto, M. A.

1999-04-01

Full Text Available A characteristic of the glass is its fragility and the scatter of the experimental mechanical strength due to the presence of defects that appear in the process of manufacturing or handling. Accordingly, investigations on this material were priorly conducted to improve the processes of manufacturing and to establish design methodologies based on probabilistic approaches. The influence of mode II of loading was traditionally ignored or considered as ratio of mode II. Recent studies have shown that when a shear-loaded crack becomes unstable a new compressive stress concentration field builds up in the notch formed between the original crack and the branch crack. This stress field affects the energy balance and also the beginning of crack extension. A procedure to design glass elements was developed jointly with CIDA of Cristalería Española, S.A. The aim of this work is to improve the model by the consideration of a mixed mode loading and its experimental contrast.

Una de las características del vidrio es su fragilidad y la gran dispersión de sus valores de resistencia mecánica, motivado fundamentalmente por la presencia de defectos procedentes de su fabricación o de su manipulación. Como consecuencia, las investigaciones en este material se han dirigido preferentemente a la mejora de los procesos de fabricación y al establecimiento de metodologías de diseño basadas en modelos probabilísticos. Tradicionalmente, en el análisis de la rotura se ha despreciado la influencia del modo II o se ha representado como un porcentaje del modo I. Recientes estudios demuestran la aparición de un nuevo campo de tensiones de compresión cuando una fisura crece bajo una carga en modo II puro situado en el codo que se forma entre la fisura original y su ramificación. Este campo de compresión influye en el equilibrio energético y, en consecuencia, en la predicción de la rotura. En colaboración con el CIDA de Cristalería Española, S.A. se ha

Todo lo que se nos brinda...: presentismo y simultaneidad. Fenomenología de lo contemporáneo (collage y saturación

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César Moreno Márquez

2012-01-01

Full Text Available Aunque no cabe duda de que el objeto ha sido máximamente relevante como modo de presencia, hay otra modalidad de presencia, no menos decisiva, aunque mucho más desatendida, como es la de simultaneidad de las perspectivas de un objeto (lo que nos conduciría al cubismo y la contemporaneidad de lo heterogéneo (collage. La atención a lo que supusieron, en tal sentido, algunas prácticas de las vanguardias en el primer tercio del siglo XX, puede resultar muy esclarecedora de cara a la investigación de ciertas experiencias que aunque periféricas o monstruosas son imprescindibles no sólo para una ampliación de las posibilidades del pensar fenomenológico, sino también para la profundización de la problemática filosófica de la hipercomunicación, que caracteriza a nuestro entorno civilizatorio. Although there is no doubt that the object has been very relevant as a way of presence, there is another form of presence, no less decisive, though much more disregarded, as is the one of simultaneity of perspectives of an object (which would lead us to cubism and contemporaneity of the heterogeneous (collage. To pay attention to wich they supposed, in such sense, some avant-garde practices in the first third of the twentieth century can be very enlightening in order to research experiences that although peripherals or monstruous, they are essential not only for expanding the possibilities of phenomenological thinking, but also to the deepening of the philosophical problem of hipercomunication, that characterizes our civilizational environment.

Arte y comunicación popular en tiempos neoconservadores (Entrevista a N. García Canclini

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Revista Chasqui

2015-01-01

Full Text Available García Canclini plantea tres puntos en torno al tema del arte y la comunicación. El del posmodernismo paralelo al neoconservatismo político y económico; el de lo insostenible de la división entre lo culto, lo popular y lo masivo, y el de la crítica situación del análisis de lo popular. El neoconservadorismo viene socavando muchos movimientos de transformación social y se muestra mediante el posmodernismo que intenta apoderarse de forma estetizante de la cultura, propone un estilo de "participación" basado en el consumo, y trata de encapsular la experiencia estética en la esfera privada. La compartimentalización de lo culto (Historia del Arte, lo popular (Folklore, Antropología, lo masivo (Medios obedece a intereses del mercado cultural y del poder universitario, pero no responde al objeto de su estudio que ha cambiado, pues la realidad muestra que hay entrecruzamientos incesantes entre estos tres sistemas culturales. La crisis de los análisis de lo popular nace tanto de que cada una de las tres tendencias define lo popular y a él se acerca de distinto modo, como de la pluralidad de los discursos políticos (Estado, Partidos sobre cultura nacional y culturas populares. Subyace a este triple problema el de la dificultad de imaginar formas alternativas de intervención de los medios masivos que hoy enseñan a las masas a pensar y sentir, lo que de alguna manera sí hace el neoconservadorismo y su reordenamiento empresarial.

Educación compleja: Indisciplinar la sociedad

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Carlos Eduardo Maldonado

2017-07-01

Full Text Available Este artículo de investigación es eminentemente crítico y propositivo. Se plantea aquí la tesis de una educación modo complejo, la cual consiste, específicamente, en una indisciplinarización del conocimiento, de la sociedad y de las instituciones. Se aportan, por consiguiente, los argumentos que hacen posible comprender esta tesis. En primer lugar, se muestra qué y cómo la historia de Occidente ha sido la historia de la disciplinarización de la sociedad. Sobre esta base, el segundo argumento establece lo que puede ser considerado como el estado del arte de la indisciplinariedad. Seguidamente, se justifica por qué razón tiene sentido afirmar aquí la indisciplinarización del conocimiento. El cuarto argumento se concentra entonces en una educación modo complejo (que es mucho mejor que hablar de una educación compleja. Al final se extraen algunas conclusiones.

El abordaje, las actitudes y el conocimiento acerca de Helicobacter pylori en médicos generales es deficiente. ¡Hay mucho que mejorar!

OpenAIRE

A.D. Cano-Contreras; O. Rascón; M. Amieva-Balmori; S. Ríos-Gálvez; Y.J. Maza; A. Meixueiro-Daza; F. Roesch-Dietlen; J.M. Remes-Troche

2018-01-01

Antecedentes: La infección por Helicobacter pylori (Hp) es una de las más comunes en el humano. Debido a su alta prevalencia a nivel mundial se ha desarrollado una serie de guías y recomendaciones para el apropiado escrutinio, diagnóstico y manejo de los pacientes con Hp. Objetivo: Evaluar el abordaje, las actitudes y el conocimiento acerca de Hp en un grupo de médicos generales en nuestro país. Materiales y métodos: Estudio transversal en el cual se evaluaron, mediante la aplicación de...

The Hayes principles: learning from the national pilot of information technology and core generalisable theory in informatics.

Science.gov (United States)

de Lusignan, Simon; Krause, Paul

2010-01-01

There has been much criticism of the NHS national programme for information technology (IT); it has been an expensive programme and some elements appear to have achieved little. The Hayes report was written as an independent review of health and social care IT in England. To identify key principles for health IT implementation which may have relevance beyond the critique of NHS IT. We elicit ten principles from the Hayes report, which if followed may result in more effective IT implementation in health care. They divide into patient-centred, subsidiarity and strategic principles. The patient-centred principles are: 1) the patient must be at the centre of all information systems; 2) the provision of patient-level operational data should form the foundation - avoid the dataset mentality; 3) store health data as close to the patient as possible; 4) enable the patient to take a more active role with their health data within a trusted doctor-patient relationship. The subsidiarity principles set out to balance the local and health-system-wide needs: 5) standardise centrally - patients must be able to benefit from interoperability; 6) provide a standard procurement package and an approved process that ensures safety standards and provision of interoperable systems; 7) authorise a range of local suppliers so that health providers can select the system best meeting local needs; 8) allow local migration from legacy systems, as and when improved functionality for patients is available. And finally the strategic principles: 9) evaluate health IT systems in terms of measureable benefits to patients; 10) strategic planning of systems should reflect strategic goals for the health of patients/the population. Had the Hayes principles been embedded within our approach to health IT, and in particular to medical record implementation, we might have avoided many of the costly mistakes with the UK national programme. However, these principles need application within the modern IT

Modos de vida alternativos: o caso da comunidade Noiva do Cordeiro http://dx.doi.org/10.15601/1983-7631/rt.v3n5p152-158

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Adilson Schultz

2011-04-01

Full Text Available Noiva do cordeiro é uma comunidade rural liderada por mulheres, que desenvolveu um modo de vida alternativo e sustentável, com partilha de bens e fim da religião institucionalizada. Forjado ao longo de mais de um século, num processo de constantes rupturas religiosas, familiares e ideológicas, esse inusitado modo de vida produziu uma comunidade autônoma, com sujeitos autônomos e responsáveis uns pelos outros, que se tornaram lideranças sociais e políticas. No centro de sua história, experiências de sofrimento e rupturas relacionadas à religião, à fome, e à estrutura familiar patriarcal. O estudo do caso de Noiva do Cordeiro tem a intenção de analisar elementos subjetivos deste processo, verificando os indicativos e as implicações de tal fenômeno religioso e social, especialmente os limites e o fim de determinado modelo de religião. Os pressupostos teóricos deste estudo apontam para uma perspectiva transdisciplinar que compreende a teologia, a sociologia e a psicologia da religião e, nestes campos, as teorias feministas.Palavras-chave: Noiva do Cordeiro; modos de vida alternativos; fim da religião; liderança de mulheres; valores humanos

Radiocaesium transfer to ewes fed contaminated hay after the Chernobyl accident: effect of vermiculite and AFCF (ammonium ferricyanoferrate) as countermeasures

International Nuclear Information System (INIS)

Daburon, F.; Archimbaud, Y.; Cousi, J.; Fayart, G.; Hoffschir, D.; Chevallereau, I.; Le Creff, H.; Gueguen, L.

1991-01-01

Contaminated hay harvested in the south-east of France in June 1986 was fed to lactating and non-lactating ewes for 50-60 days. The mean transfer coefficients observed were 0.075 days litre -1 to milk and 0.11 days kg -1 to meat. Adding vermiculite to feed pellets decreased the transfer coefficients by a factor of 2.5 to both milk and meat if given at 30 g day -1 ; a factor of 8 difference was reached using 60 g day -1 added vermiculite or 2 g day -1 ammonium ferricyanoferrate (AFCF). No adverse effects on intake rates, animal weight or milk production were observed during the administration period (90-100 days, 50-60 days during the oral contamination and 40 days during the depletion period), whatever the treatment. Three lactating goats were fed the same contaminated hay, but chopped and mixed with powdered maize, for 15 days. The mean milk transfer coefficient was lower than that for ewes at 0.032 days litre -1 . (author)

El modo de gobernanza neoliberal en los grandes proyectos culturales en ciudades europeas. Un análisis crítico de la Ópera de Oslo en la Fjord City.

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José Ignacio Vila

2018-05-01

Full Text Available El desarrollo de grandes proyectos culturales ha sido una tendencia en las ciudades europeas en el último ciclo alcista de la última fase capitalista, justo hasta la crisis económica mundial. En el contexto territorial de la Europa del norte, esta investigación analiza el papel de un equipamiento cultural emblemático de financiación pública, la Ópera de Oslo, en un proyecto urbano más amplio (Fjord City y la influencia de la orientación y el modo de gobernanza utilizado en la transformación urbana generada en su entorno. El análisis cualitativo crítico del planeamiento y las entrevistas semiestructuradas a los principales agentes urbanos permiten caracterizar el desarrollo del proyecto, incluyendo el papel de dichos agentes y las interacciones entre ellos. De este modo, se explica la implementación de un modo de gobernanza y de un proceso de regeneración urbana neoliberal en un espacio excéntrico de Oslo, en uno de los países reconocido por su modelo de sociedad del bienestar. Este artículo demuestra la flexibilización e intensificación de las interacciones entre agentes públicos y privados en este nuevo modo de gobernanza y la legitimación generada por la realización de la Ópera para el desarrollo de una estrategia de marketing urbano, la reconcentración de los principales equipamientos culturales en el frente marítimo y un proceso de regeneración urbana orientada a la atracción de capital transnacional.

O desenvolvimento do modo narrativo de pensamento em pré-adolescentes

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Lídia Suzana Rocha de Macedo

2017-01-01

Full Text Available El presente estudio investiga la comprensión de niños acerca de la covariación de los términos de la división sin la presencia explicita del número. El objetivo es verificar si hay diferencia en el desempeño cuando se incluyen cantidades que son expresadas por números o por códigos relativos. Participaron 72 estudiantes pertenecientes a una escuela particular de Recife (Brasil, distribuidos en tres grupos: Prescolar (Infantil 3, primero y segundo año. Estos grupos resolvieron 12 problemas de división conside- rando dos condiciones: C1 (con la presencia explicita del número y C2 (con la presen- cia del código relativo. Los resultados revelan que los niños de 1º y 2º año presentan mejor desempeño cuando los problemas son presentados en la C2, a diferencia de los niños de prescolar (Infantil 3 que presentan mejor desempeño en la C1. Estos resul - tados apuntan a que el uso del código relativo parece ayudar a los niños en los años iniciales, principalmente a aquellos que están iniciando el aprendizaje de operaciones a pensar sobre las relaciones presentes en los enunciados de los problemas.

Design, fabrication, and initial test of a fixture for reducing the natural frequency of the Mod-O wind turbine tower

Science.gov (United States)

Winemiller, J. R.; Sullivan, T. L.; Sizemore, R. L.; Yee, S. T.

1979-01-01

It was desired to observe the behavior of a two bladed wind turbine where the tower first bending natural frequency is less than twice the rotor speed. The system then passes through resonance when accelerating to operating speed. The frequency of the original Mod-O tower was reduced by placing it on a spring fixture. The fixture is adjustable to provide a range of tower bending frequencies. Fixture design details are given and behavior during initial operation is described.

The effect of cellulose crystallinity on the in vitro digestibility and fermentation, kinetics of meadow hay and barley, wheat and rice straws

NARCIS (Netherlands)

Cone, J.W.; Gelder, van A.H.; Fonseca, A.; Ferreira, L.M.M.; Sequeria, C.A.

2003-01-01

The effect of cellulose crystallinity on in vitro digestibility (IVD) and fermentation kinetics was investigated in samples of meadow hay and barley, wheat and rice straws. A saturated solution of potassium permanganate was used to isolate the celluloses, and their crystallinity was evaluated in a

Turismo musical y patrimonio cultural como recursos educativos

OpenAIRE

Ramos Ahijado, Sonsoles; Botella Nicolás, Ana María

2017-01-01

La música es el más singular tipo de patrimonio cultural, que motiva desplazamientos turísticos, ya que para muchos viajeros cumple un rol importante en sus itinerarios. El turismo y el consumo cultural adquieren de este modo una gran relevancia, como fuente de riqueza y seña de identidad de la sociedad. En este artículo forma parte de una investigación de mayores dimensiones sobre la música como recurso para la promoción turística. Así, teniendo presente las nuevas tendencias del interés tur...

Adiós a Gabriel García Márquez

OpenAIRE

Perilli, Carmen; Universidad Nacional de Tucumán/ CONICET

2014-01-01

Extracto del ensayo: "Mi historia personal, como la de muchos otros de mi generación, está unida a la lectura de Cien años de soledad. La escena de lectura de la primera edi- ción del barquito, en una siesta interminable en un pueblo de provincia, donde siempre es lunes, me volcó, de modo definitivo, hacia la literatura. A lo largo de estos años las innumerables incursiones en sus páginas dieron lugar a mi trabajo de tesis. Hoy continúan alimentando mi escritura y mis seminarios donde vuelvo ...

Equidad de género en la calidad de atención de niños y niñas

OpenAIRE

Tajer, Débora Judith; Reid, Graciela; Cuadra, Maria Eugenia

2013-01-01

En la Argentina existen muchos avances en la incorporación de los aspectos psicológicos y sociales en la atención de la salud en la infancia. Sin embargo, dichos avances aún no han incluido de manera significativa la perspectiva de género en la atención, tal como lo promueven los consensos internacionales. Con el fin de medir el grado en el cual estos avances han sido incorporados en las prácticas, esta investigación intenta identificar el modo en el cual los/as profesionales de la salud que ...

Tratamiento de los contenidos culturales en soportes periodísticos de carácter digital

OpenAIRE

Carrera Romero, Lucía

2016-01-01

Esta investigación analiza la imagen que se ofrece de la cultura a través de Internet, como un nuevo medio que puede ofrecer una gran cantidad de información cultural. La llegada de un nuevo modelo de sociedad centrado en las nuevas tecnologías, conocida como sociedad Red, trae muchos cambios para los miembros de esta sociedad, los medios y el público. Por lo tanto, la sociedad red es la responsable de una serie de cambios en cuanto a prioridades y modos de comunicación de estos medios. Hoy e...

Ética en Investigación

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Bustinza Cabala, Leonor; Universidad Peruana Unión

2013-01-01

La ética en la investigación es un tema de creciente interés en muchos países, porque es básico poseer y respetar normas axiológicas no solo en el proceso sino, sobre todo, en la enunciación de los resultados de un estudio científico. Por principio, la ciencia debe servir para conocer, interpretar y explicar la realidad y sus fenómenos de un modo real, verídico y honesto, sin sesgos interesados ni manipulaciones. Diversos intereses, desde econó- micos hasta políticos, pueden distorsionar, ocu...

Datura contamination of hay as the suspected cause of an extensive outbreak of impaction colic in horses : clinical communication

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T.W. Naudé

2005-06-01

Full Text Available atura poisoning of horses is extensively reviewed. An outbreak of intractable impaction colic affecting 18 of 83 horses was stopped by withdrawing dried tef hay contaminated with young Datura plants. The dried, botanically identified Datura stramonium and D. ferox contained respectively 0.15 % mass/mass (m/m hyoscyamine as well as 0.16 % m/m hyoscine (scopolamine and only hyoscine at a concentration of 0.11 % m/m. Immature, unidentifiable plants resembling D. stramonium, contained 0.14 % m/m and 0.12 % m/m of the 2 respective tropane alkaloids. The outbreak was characterised by protracted and repeated colic attacks due to impaction of the large colon and/or caecum without any other anti-muscarinic signs. Comparative analyses of single specimens of dried seed of the 2 species collected from both fertilised and waste areas revealed that young South African Datura spp. had levels of tropane alkaloids comparable to those in the well-known toxic seed and were, consequently, equally toxic. The inherent danger of tef hay being contaminated with Datura is emphasised. To our knowledge this is the 1st field case of poisoning in horses ascribed to the vegetative parts of Datura spp.

Tissue composition of the leg and meat quality of sheep fed castor bean hulls in replacement of tifton hay

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Stela Antas Urbano

2013-10-01

Full Text Available The effects of replacing Tifton hay with castor bean hulls (0, 33, 66 and 100% on the leg tissue composition, chemical composition, physicochemical parameters and sensorial traits of sheep meat were studied. A total of 28 non-castrated sheep averaging seven months in age with an average initial weight of 19.5±4.3 kg were assigned to a randomized block design with four treatments and seven replicates and were slaughtered after 70 days of confinement. At slaughter, body weight and leg, muscle and bone weights decreased linearly, whereas the muscle-to-bone ratio increased linearly according to the treatments. There was a quadratic effect on yellow intensity (maximum of 8.05 with replacement of 54.5% and the percentage of cooking losses (minimum of 33.8% with replacement of 45.17%. The treatment employed did not affect either the chemical composition or sensorial traits of the lamb meat. Although replacing Tifton hay with castor bean hulls alters the tissue composition of the leg as well as some physicochemical parameters of the meat, the sensory analysis indicated good acceptability of the meat, regardless of the inclusion of this byproduct.

A imagem digital como dispositivo de apropriação dos modos de subjetivação contemporâneos "La imagen digital como dispositivo de apropiación de los modos de subjetividad contemporáneos" The digital image as a tool for the assumption of contemporary subjectivizing methods

Directory of Open Access Journals (Sweden)

Patrícia Beatriz Argôllo Gomes Kirst

2010-06-01

Full Text Available O artigo "A imagem digital como dispositivo de apropriação dos modos de subjetivação contemporâneos" trata de problematizar a imagem digital como emblema dos atuais modos de produção de subjetividade. Na imagem digital, o tempo é resignificado na despotencialização de seus aspectos acumulativos vindo a ser integrado a uma temporalidade transitória e de confluência de encontros. A discussão proposta expõe dimensões do conceito de virtual afirmando-o como potência imaginativa, fruto de agenciamentos múltiplos e heterogêneos entre arte, tecnologia e ciência fundando novas interações entre sujeito e mundo. É justamente, desde uma leitura da realidade como pura transformação, não existindo essências e sim estados de coisas, que a simulação se torna adequada para pensar as relações entre imagem digital e subjetividade.El artículo "La imagen digital como dispositivo de apropiación de los modos de subjetividad contemporáneos" trata de problematizar la imagen digital como emblema de los actuales modo de producción de subjetividad. En la imagen digital, el tiempo es otra vez significado en la pérdida de potencia de sus aspectos acumulativos siendo integrado a una temporalidad transitoria y de confluencia de encuentros. La discusión propuesta expone dimensiones del concepto de virtual afirmándolo como potencia imaginativa, fruto de agenciamentos múltiplos y heterogéneos entre arte, tecnología y ciencia fundando nuevas interacciones entre sujeto y mundo. Es justamente, desde una lectura de la realidad como pura transformación, no existiendo esencias y sí estados de cosas que la simulación se torna adecuada para pensar las relaciones entre imagen digital y subjetividad.The article "The digital image as a tool for the assumption of contemporary subjectivizing methods" brings into the matter the digital image as the symbol of the current ways we produce subjectivity. In the digital image, time is redefined in the

En defensa del periodismo profesional

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Ángel Arrese

2007-12-01

Full Text Available No solo es una cuestión de defensa de la propia identidad del periodismo -que también lo es-; es un asunto de gran trascendencia pública, desde el punto de vista del buen funcionamiento de la sociedad. El periodismo tradicional esta siendo amenazado por infinidad de simulacros informativos, por eso, está en manos de los medios de siempre -mucho más que de los nuevos-, realizar esa transición y adaptación de la profesión a los requerimientos de los nuevos tiempos, superando la tentación de no hacer nada, o de dejarse llevar por la corriente. También es la responsabilidad de quienes se dedican a la formación de estos profesionales, en especial de la Universidad, que en la mayoría de los países se ha implicado seriamente en esa tarea. Hay mucho que mejorar y aprender del periodismo institucional porque las sociedades funcionan mejor si los ciudadanos tienen acceso a la información que ha sido recabada por personas bien entrenadas.

Automatic segmentation of lizard spots using an active contour model

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Jhony Heriberto Giraldo-Zuluaga

2016-01-01

Full Text Available La biometría en animales es una tarea desafiante. En la literatura muchos algoritmos se han utilizado, como, por ejemplo, el reconocimiento de los pechos en pingüinos, el reconocimiento de las orejas en elefantes y el reconocimiento de los patrones de rayas en leopardos. No cabe duda que aún hay mucho trabajo para hacer un uso masivo de la tecnología. En este artículo proponemos un algoritmo de segmentación para extraer manchas de la especie de lagartos Diploglossus millepunctatus, amenazada por la actividad humana. La segmentación automática ha sido lograda con una combinación de preprocesamiento, contornos activos y morfología. Los parámetros de cada etapa del algoritmo de segmentación han sido optimizados usando imágenes de referencia como objetivo. Los resultados muestran que la segmentación automática de manchas es posible. Un 78,37% de segmentación correcta en promedio es alcanzado.

Influência de três modos de fotopolimerização sobre a microdureza de três resinas compostas

Directory of Open Access Journals (Sweden)

Andréa Cristina Schneider

2016-01-01

Full Text Available Resumo A adequada fotopolimerização das resinas compostas é fundamental para obtenção de uma boa dureza capaz de resistir aos esforços mastigatórios. Assim, o objetivo deste estudo foi avaliar a influência das técnicas de fotopolimerização - Convencional (CONV, Soft-start (SS e Pulso atrasado (PA na microdureza Knoop de três resinas compostas. Para a confecção dos corpos-de-prova foram utilizadas as resinas compostas Filtek Z350 (3M ESPE, Empress Direct (IvoclarVivadent e P90 (3M ESPE. Foram obtidos nove grupos experimentais em função da técnica de polimerização e resina composta. Vinte e quatro horas após a fotopolimerização foi realizado o teste de microdureza Knoop nas superfícies de base e topo de cada corpo-de-prova. Assim, os valores obtidos foram submetidos ao teste de Kruskall Wallis, seguido do teste de Dunn, p < 0,05. A eficácia da polimerização na superfície de topo das resinas compostas testadas não foi afetada pelos diferentes modos de polimerização. A resina composta Empress Direct apresentou os mais baixos valores de dureza para todos os modos de polimerização quando comparada às demais resinas compostas avaliadas.

Valor nutritivo e utilização do feno de leucena (Leucaena leucocephala cv. Cunningham para coelhos em crescimento Nutritional feeding value and use of Leucaena hay (Leucaena leucocephala cv. Cunningham for growing rabbits

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Denise Fontana Figueiredo

2000-05-01

Full Text Available Dois experimentos foram realizados com o objetivo de avaliar a utilização do feno de leucena (Leucaena leucocephala cv.Cunningham para coelhos em crescimento. No ensaio de digestibilidade foram utilizados 28 coelhos da raça Nova Zelândia Branco, com 40 dias de idade, distribuídos em um delineamento experimental inteiramente casualizado, com dois tratamentos e 14 repetições. Foram utilizadas duas dietas, uma referência e uma teste na qual o feno de leucena substituiu 25% da matéria seca da dieta-referência. Os teores de matéria seca digestível, matéria orgânica digestível, proteína digestível, fibra em detergente neutro digestível e energia digestível do feno de leucena foram, respectivamente, de 26,87%; 25,30%; 5,32%; 14,66% e 1.286Kcal/kg. No experimento de desempenho foram utilizados 80 coelhos da raça Nova Zelândia Branco, de 35 a 70 dias de idade. Os animais foram distribuídos num delineamento experimental inteiramente casualizado, com cinco tratamentos (cinco níveis de inclusão de feno de leucena: 0, 25, 50, 75 e 100%, em substituição ao feno de alfafa, oito repetições e dois animais por unidade experimental. Os níveis crescentes de substituição do feno de alfafa pelo feno de leucena, não afetaram o desempenho dos coelhos durante o período experimental. Os dados mostram que o feno de leucena substituiu eficientemente o feno de alfafa em dietas para coelhos em crescimento.Two trial were carried out to determine the performance of rabbits fed on diets which included Leucaena hay (Leucaena leucocephala cv. Cunninghan. Twenty-eight 40-day old White New Zealand rabbits were employed for the digestibility trial, in a completely randomized design with two treatments and 14 replications. Reference and test diets were used in which Leucaena hay replaced 25% of the dry matter in the reference diet. Digestible dry matter, digestible organic matter, digestible protein, digestible F.D.N. and digestible energy contents of

Apuntes sobre abreviaciones en el libro Ortografía de la Lengua Española (OLE

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Ana Baldoceda Espinoza

2011-05-01

Full Text Available A modo de introducción, presentamos definiciones, empezando porla más genérica, la de abreviación, lo que ayudará a esclarecer el sentidode nuestra exposición. Para mayor precisión se ha consultado, entreotras obras, el Diccionario panhispánico de dudas (DPD.Abreviación. Es toda representación escrita reducida de una o máspalabras. Hay diferentes clases de abreviación: abreviatura, sigla,acrónimo y símbolo (SI.

Modos de falar de si: a dimensão estética nas narrativas autobiográficas

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Luciana Esmeralda Ostetto

2015-04-01

Full Text Available O artigo apresenta e analisa o trabalho biográfico desenvolvido com um grupo de jovens que começava sua jornada no curso de Mestrado em Pedagogia do Teatro da Universidade de Rostock (norte da Alemanha. Inspirado na proposta de “ateliê biográfico de projeto”, o trabalho procurou amplificar possibilidades nos modos de falar de si, utilizando-se de diferentes linguagens e materialidades expressivas. Pressupondo a dimensão estética, poética, dos processos de produção de narrativas autobiográficas, o convite à imaginação criadora mobilizou, no campo da sensibilidade, a compreensão e a escrita de si.

The Hayes principles: learning from the national pilot of information technology and core generalisable theory in informatics

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Simon de Lusignan

2010-06-01

Conclusions Had the Hayes principles been embedded within our approach to health IT, and in particular to medical record implementation, we might have avoided many of the costly mistakes with the UK national programme. However, these principles need application within the modern IT environment. Closeness to the patient must not be interpreted as physical but instead as a virtual patient-centred space; data will be secure within the cloud and we should dump the vault and infrastructure mentality. Health IT should be developed as an adaptive ecosystem.

El aprovechamiento del cómic como herramienta didáctica desde el enfoque comunicativo

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Isabel García Martínez

2015-10-01

Full Text Available El cómic es un recurso que, en muchos casos, se utiliza de modo anecdótico en el aula y con una función puramente de entretenimiento, sin dar muchas veces la importancia que se merece a lo que muchos consideran el noveno arte. Esta experiencia práctica pretende mostrar la idoneidad y la versatilidad de este medio narrativo en el aula de español como lengua extranjera. Tras un breve acercamiento teórico al uso del cómic en el aula de E/LE, se presentan los resultados de un análisis previo sobre la presencia de cómics en los manuales de E/LE. Las diferentes aplicaciones didácticas que se presentan, dirigidas a diferentes niveles que oscilan desde el nivel B1 hasta el C2, suplen las carencias detectadas en el mencionado análisis, utilizan cómics españoles e hispanoamericanos, y fomentan el uso de las TIC y los álbumes completos.

Rotylenchus Filipjev, 1936: Nematodo Fitoparásito Poco Común en Antioquia (Colombia y Apuntes sobre su Modo de Vida

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Voley Charles

1997-12-01

Full Text Available En este trabajo, se registra la presencia del nematodo fitoparásito Rotylenchus robustus (de Man, 1876 Filipjev, 1936 en suelos sembrados con clavel (Dianthus caryophillus y pompón (Dendranthema grandifolia en el departamento de Antioquia, Colombia, Algunas de sus principales características morfológicas son: L= 1.3 mm, Est= 42, a=29, b=7,4 y V= 57% en las hembras; y L= 1,2 mm, Est=41, a=29, b=6,1 y espículas de 39 de largo en los muchos. De otro lado, se discutieron algunos de sus aspectos bioecológicos y de paratisismo. Este registro es el primero para esta región y tal vez para el país.

El sueño caballeresco. De la caballería de papel al sueño real de don Quijote

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Cátedra, Pedro M.

2007-01-01

El Quijote es difícilmente comprensible sin atender al contexto en el más amplio sentido del término. Si es cierto que, para don Quijote, como lector y actor, la caballería y sus códigos eran una realidad de signos, no lo es menos que en tiempos de Cervantes aún la caballería tiene una fuerza representativa a la que hay que reconocerle mucho más que una pura representación desgastada y ya en franca ruina y pérdida. En este libro se estudia la repercusión del sueño caballeresco en el siglo XVI...

Factores asociados al trauma fatal en motociclistas en Medellín, 2005-2008

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Doralba Aristizábal

2012-03-01

Conclusiones. En Medellín, los motociclistas son un grupo de interés en el sistema vial; por su mayor exposición, la energía que acumulan en los choques contra un objeto fijo es mucho mayor y más letal que la acumulada en otra clase de accidentes, y aunque hay más accidentes de tránsito en glorietas e intersecciones, la mayor posibilidad de morir se presenta en los tramos de vía de doble carril y en otras vías.   DOI: http://dx.doi.org/10.7705/biomedica.v32i1.603

A campo traviesa entre los Círculos Lingüísticos: la problemática de la semiótica

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Ana Goutman Bender

2008-01-01

Full Text Available En este artículo, la autora analiza la problemática de la semiótica a la luz de algunos de sus exponentes más descollantes (Mathesius, Jakobson, Havránek y Mukarovský, Bogatyrev, Trubetskói, Courtenay, Saussure, Carnap, Peirce así como de las escuelas que crearon (los círculos Lingüísticos de Praga, Moscú y Viena. Se parte de la hipótesis de que la problemática de la semiótica tiene que ver con la significación y con la comunicación; con el sistema de signos y con la producción de signos; con el lenguaje observado y con el lenguaje vivido así como con el modo como unos y otros se vinculan. Concluye que no hay modo de separar cultura, lengua y semiótica.

In vivo and in situ measurements of the digestive characteristics of sainfoin in comparison with lucerne fed to sheep as fresh forages at two growth stages and as hay.

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Aufrère, J; Dudilieu, M; Poncet, C

2008-09-01

In vivo and in situ digestive characteristics of sainfoin (Onobrychis viciifolia L., a tannin-rich forage) and lucerne (Medicago sativa L., a tannin-free forage) were compared to evaluate the effects of condensed tannins (CT) and growth stage (vegetative v. early flowering) in experiment 1. In experiment 2, the hays of the two forages, harvested at early flowering, were compared. Ingestibility, organic matter digestibility (OMD) and nitrogen (N) retention were measured in sheep fed sainfoin and lucerne fresh forages and hays. The loss of dry matter (DM) and N from polyester bags suspended in the rumen, abomasum and small intestine was also measured using rumen fistulated sheep and other intestine fistulated sheep. Nitrogen content was lower in sainfoin than in lucerne. Content of CT in sainfoin decreased with growth stage (3.5 to 2.5 g CT/kg DM) and was lower for sainfoin hay (0.6 g CT/kg DM). Ingestibility and OMD did not differ between fresh-fed forage species. Total N tract digestibility in vivo was much lower for sainfoin than for lucerne fresh forages (mean value 0.540 v. 0.721, P forages. Nitrogen degradability in the rumen determined by the nylon bag technique (DegN) was lower for sainfoin than for lucerne when forages were studied both fresh (mean value 0.608 and 0.818, respectively) and as hays (0.631 and 0.767). The efficiency of forage N digestion (ENd) was higher for sainfoin at the vegetative stage. Compared with lucerne, sainfoin greatly increased the in situ estimate of forage N escaping the rumen but decreased its intestinal digestibility.

Los diversos modos de leer literatura en la escuela: la lectura de textos literarios como práctica sociocultural

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Cuesta, Carolina

2003-01-01

La lectura de textos literarios en el aula, esto es, cómo se muestra en tanto práctica sociocultural e histórica desarrollada por jóvenes en la escuela, es el problema que aborda esta investigación. A partir de una revisión de las teorías sobre la lectura legitimadas desde los diseños curriculares y la insdustria editorial escolar, sobre todo, se discute y demuestra cómo adolescen de categorías tendientes a explicar a los sujetos reales que leen literatura. De este modo, las teorías sobre la ...

El suicido de Grisóstomo

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Stanislav Zimic

1993-12-01

Full Text Available El episodio amoroso de Grisóstomo y Marcela del Quijote (P Parte, capitulos XII-XIV ha inspirado ya muchas interpretaciones, algunas muy interesantes, otras desvariadas, a veces tan acaloradamente opuestas que ban herido vanidades académicas y provocado insultos, humillaciones personates y hasta pundonorosos alardes de nobleza de linaje y de ortodoxia católica. Indudablemente, en el episodio hay problemas controversiales, delicados y formulados de modo muy sutil, lo que se traduce en un texto muy complejo aun para el lector mejor preparado.

Sistemas tradicionales de cria de gallina de corral en la región semiárida brasileña: avances a partir de una investigación participativa

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Jalfim, Felipe Tenório

2016-01-01

El contexto en el que se ha desarrollado esta investigación se ve marcado, por un lado, por fuertes pérdidas de espacios en los mercados locales del Semiárido brasileiro por los sistemas tradicionales de cría de gallinas para el complexo avícola industrial. Por otro lado, hay experiencias de resistencia de las campesinas en búsqueda de alternativas al modelo avícola industrial. De este modo, el objetivo más amplio de la presente tesis fue desarrollar un conocimiento referenc...

Aportaciones de la etnografía doblemente reflexiva en la construcción de la terapia ocupacional desde una perspectiva intercultural

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Inmaculada Zango Martín; Pedro Moruno Millares

2013-01-01

En el ámbito de la terapia ocupacional, como consecuencia de los procesos de globalización, hay un interés creciente por aspectos relativos a la cultura y sus relaciones con la salud. El desarrollo de la terapia ocupacional en contextos multiculturales transciende el cuestionamiento terminológico para ahondar y perfilar nuevas directrices relacionadas con la construcción y consolidación del conocimiento. De este modo, este artículo plantea el análisis crítico de los principales fundamentos te...

Análise da variação do tempo dedicado ás viagens urbanas da população de Manaus – AM, em função do modo de transporte utilizado

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Aline Leite

2012-06-01

Full Text Available A ausência de planejamento, característica da maioria dos bairros de Manaus deixou como herança um sistema viário incompatível com o tamanho atual da cidade. Neste artigo busca-se analisar a variação do tempo dedicado às viagens urbanas em Manaus em função de três diferentes modos de transporte: ônibus, micro-ônibus e automóvel. Receptores do Sistema de Posicionamento Global (GPS e recursos de um Sistema de Informações Geográficas (SIG foram utilizados para levantar e tratar os dados das viagens urbanas realizadas. Considera-se (por tudo o que o trabalho permitiu concluir, que a metodologia adotada foi bastante consistente para o reconhecimento da variação de desempenho de modos de transporte investigados. Os percursos mais longos permitiram melhor desempenho que os mais curtos, notadamente influenciado pela área central da cidade, que registrou os trechos mais lentos para os três modos.

Anthelmintic effect of carob pods and sainfoin hay when fed to lambs after experimental trickle infections with Haemonchus contortus and Trichostrongylus colubriformis

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Arroyo-Lopez Celia

2014-01-01

Full Text Available The aim of the study was to compare the in vivo anthelmintic activity of sainfoin hay (Onobrychis viciifolia and carob pod meal (Ceratonia siliqua against gastrointestinal nematodes. Seven days before infection, 64 naive lambs were assigned to four different groups: Group S received sainfoin hay and group CAR was fed with carob pods. The remaining lambs received lucerne hay (Medicago sativa and were assigned to positive (non-treated, NT and negative (treated, T control groups (treatment with albendazole. On day 0, lambs were artificially trickle infected for 6 weeks, with a mixture of infective larvae of Haemonchus contortus and Trichostrongylus colubriformis. Parasitological and pathophysiological parameters were measured repeatedly during the 2-month study. Compared to the NT group, decreases in egg excretion were observed in the CAR and S groups with significant differences only found for sainfoin (p < 0.05. At necropsy, group S showed decreases in the total worm numbers of both nematode species with significant differences for H. contortus. In contrast, no differences were noticed for the CAR group. Compared to the NT group, lower values for fecundity of female H. contortus were found in the S and CAR groups, however differences were non-significant. No differences in body weight gains were found between groups. Consistent results were found showing significantly higher packed cell volume (PCV values in the T and S groups compared to NT and CAR groups. Overall, these results confirm a positive effect associated with the feeding of lambs with tanniniferous resources on host resilience (PCV values and against gastrointestinal parasitic nematodes by affecting some biological traits of worm populations (e.g. eggs per gram of faeces and worm numbers. However, the anthelmintic effects differed between the two tannin-containing resources, which might be associated with the quantity and/or quality of secondary metabolites (condensed tannins and

Effect of monensin withdrawal on intake, digestion, and ruminal fermentation parameters by Bos taurus indicus and Bos taurus taurus steers consuming bermudagrass hay

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Effects of monensin withdrawal and cattle subspecies on the utilization of bermudagrass hay (14.3% CP, 72.3% NDF, and 36.9% ADF) were evaluated using ruminally cannulated steers (5 Bos Taurus indicus [BI] and 5 Bos taurus taurus [BT]). Subspecies were concurrently subjected to a 2-period, 2-treatme...

Diseño de un programa de acompañamiento pedagógico y monitoreo para fortalecer los modos de actuación de los docentes de educación primaria de la Fachse.

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Sanchez Rubio, María Edelmira

2014-01-01

Se presenta, en este trabajo de Investigación, la propuesta de un Programa de Acompañamiento pedagógico y monitoreo para fortalecer los modos de actuación de los docentes de Educación Primaria de la FACHSE, para una mejor orientación didáctica se desarrolla la matriz lógica en la que el problema quedó formulado como sigue: Se observa en el proceso de desempeño profesional de los docentes de Educación Primaria de la FACHSE, deficiencias en los Modos de Actuación; esto se manifiesta en el incum...

Conjunto de actividades físico recreativas para la ocupación del tiempo libre de los adolescentes de 13 a 15 años

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Ernesto Seguí González

2009-01-01

Desde hace muchos años la recreación se convirtió en un pilar para el desarrollo del ser humano respecto a su modo de vida ,de pensar de actuar ,ha contribuido con el desarrollo multifacético de cada cual ,ha sido una constante desde la niñez hasta la adultez donde se puede observar los cambios que tiene el organismo en cuanto a lo psicológico espiritual y mental ,ha mejorado la calidad de vida donde hoy la recreación se ha llevado hasta los mas recónditos lugares del país donde se puede apre...

Avance al estudio de las pinturas rupestres esquemáticas de la Cueva del Plato. Panel "A" (Otiñar, Jaén

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Javier CARRASCO RUS

2009-12-01

Full Text Available En estos últimos años se han descubierto una serie de abrigos y cuevas con pinturas rupestres de tipo «esquemático» en la provincia de Jaén. En muchos de los casos han sido dadas a conocer de forma muy sucinta a modo de pequeño informe, llamando la atención de los especialistas e interesándoles por ellas. Otras veces las noticias de los hallazgos no han pasado de las páginas del periódico local, con el consiguiente detrimento para el conocimiento de las manifestaciones artísticas de las primitivas poblaciones del Alto Guadalquivir.

Apuntes sobre análisis cognitivo. Módulo 3 de MAD 3

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González, María José; Gómez, Pedro

2015-01-01

Una vez realizado el análisis de contenido, en el que el foco de atención es el tema matemático que se va a enseñar, pasamos a realizar otro análisis en el que el foco de atención es el aprendizaje del estudiante. Se trata de hacer una descripción de las expectativas del profesor sobre lo que se espera que el alumno aprenda y sobre el modo en que se va a desarrollar ese aprendizaje. Esta es una problemática muy compleja que puede enfocarse desde muchos puntos de vista. Aquí haremos una apr...

Implicaciones éticas de la limitación de tratamientos de Soporte Vital desde la perspectiva Enfermera.

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Delgado Rodríguez, Janet

2010-12-01

Full Text Available The patients’ health care on their death process raises important ethical issues to health professionals and society in general. Great advances in biomedical science and technology during the second half of last century are the beginning to question the technological imperative. In such way, nowadays when the patient shows a bad prognosis of survival, low recoverability, etc, limitation of life-sustaining treatments is needed. In these cases, professionals have to prioritize the patient’s comfort at its highest level, for patient to die without suffering. However, there is in literature and in clinical practice much controversy about how to make decisions in such situations, and how to implement them, because there are many ethical issues involved around the limitation of life-sustaining treatments. The aim of this research article is to introduce nurses into the developed from Bioethics’ reflection around the complex issue of limiting life-sustaining treatments. Another pretension is to highlight which is the Nursing professional’s role in the whole thing, without losing of view that one of its contributions has to be the humanization of death process.ResumenLa atención sanitaria a un paciente en el proceso del morir plantea importantes cuestiones éticas a los profesionales sanitarios y a la sociedad en general. Debido a los grandes avances de la ciencia biomédica y de la tecnología durante la segunda mitad del siglo pasado, se empieza a cuestionar el imperativo tecnológico. De tal modo que hoy en día, cuando hay evidencias de que el paciente tiene un pronóstico negativo de supervivencia, escasa recuperabilidad, etc, se plantea la necesidad de limitar los tratamientos de soporte vital. En estos casos, los profesionales sanitarios han de priorizar el mayor grado de confort del paciente para que pueda morir sin sufrimiento, cuando ya no se puede curar. Sin embargo, tanto en la literatura como en la práctica asistencial hay una

LA CRISIS DE LA TRANSICIÓN DEMOGRÁFICA EN EL ÁFRICA SUBSAHARIANA: POBREZA Y POBLACIÓN EN EL MUNDO ACTUAL

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Juan-Francisco Martín Ruiz

2007-01-01

Full Text Available África es el continente con mayor retraso en el desarrollo demográfico en su conjunto, y sobre todo la situada al Sur del Sahara es la que ha experimentado en la última década una fuerte ralentización, surgiendo una nueva brecha, que parece aumentar en los últimos años. Incide directamente la pobreza, de modo que hay una interrelación entre población y desarrollo socioeconómico y humano. Interactúan como factores limitativos la alta fecundidad, el gran crecimiento demográfi co, la escasa escolarización y elevadísimo analfabetismo, sobre todo de la mujer, así como la manifestación de nuevas epidemias: VIH/SIDA, tuberculosis, y el agravamiento de antiguas endemias, la malaria y las derivadas de las grandes hambrunas y crisis bélicas. Exige un gasto añadido (potencial en salud y se produce un descenso de la productividad, y todo ello conlleva que se detenga el desarrollo humano, el progreso demográfico y social, e incluso la incipiente transición epidemiológica y la transición demográfi ca misma. Así, a la primera brecha, la del continente africano en su conjunto con respecto al Primer Mundo, se añade una nueva, entre África al Sur del Sahara y la del Norte, empobrecida la primera, en muchos de cuyos tinente países se ha paralizado en incluso retrocedido la transición sanitaria y demográfica, y en vías de desarrollo económico y humano la segunda, con una transición demográfica ya en una fase relativamente avanzada.

Mucho ruido y pocos… DESC. Análisis del caso Gonzales Lluy y Otros contra Ecuador de la Corte Interamericana de Derechos Humanos

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Liliana Ronconi

2016-08-01

Full Text Available El propósito de este trabajo es reconstruir la línea argumentativa utilizada por la Corte Interamericana de Derechos Humanos en la resolución del caso Gonzales Lluy y otros versus Ecuador, de 1 de septiembre de 2015, conforme la tesis de que la Corte IDH aplica el argumento de igualdad en la versión del examen de proporcionalidad estricto como eje central de su argumentación, dejando de lado un posible argumento basado en el “principio de no regresividad”. Sostengo que la decisión de la Corte IDH se asienta, fundamentalmente, en el trato discriminatorio que sufrió la demandante y su familia al poner en riesgo su vida y su integridad física y su derecho a la educación. Sin embargo, para muchos de los que trabajamos en DESC, el fallo es insuficiente, pues la Corte elude la aplicación del artículo 26 de la Convención Americana de Derechos Humanos (principio de progresividad y no regresividad. La aplicación y el desarrollo de los estándares contenidos en el artículo 26 de la CADH resultan de gran utilidad práctica para los diferentes Estados de la región, generando pautas interpretativas para la exigibilidad de los DESC y otorgando herramientas concretas para evaluar su incumplimiento.

Effect of monensin inclusion on intake, digestion, and ruminal fermentation parameters by Bos taurus indicus and Bos taurus taurus steers consuming bermudagrass hay

Science.gov (United States)

Effects of monensin inclusion and cattle subspecies on utilization of bermudagrass hay (13.7% CP, 77.3% NDF, and 38.8% ADF) were evaluated using ruminally cannulated steers (5 Bos taurus indicus [BI] and 5 Bos taurus taurus [BT]; 398 kg BW). Subspecies were concurrently subjected to a 2-period, 2-t...

DISCURSO JORNALÍSTICO E A SUPOSTA IMPARCIALIDADE: OS MODOS DE APROPRIAÇÃO DO DISCURSO DE OUTREM COMO INDICATIVOS DE POSICIONAMENTOS IDEOLÓGICOS

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André Cordeiro dos Santos

Full Text Available RESUMO: Tomando parte na discussão que há no campo da teoria do jornalismo sobre a objetividade e a subjetividade, e falando do lugar da linguagem, neste trabalho, propomos que os modos de apropriação do discurso de outrem podem ser um meio à resolução desse impasse, pois levantamos a hipótese de que eles evidenciam posicionamentos sócio-ideológicos do sujeito-jornalista em relação ao objeto de enunciação. Para tanto, partimos da concepção de linguagem do chamado Círculo de Bakhtin e tomamos notícias dos dois jornais mais lidos do estado de Pernambuco, Diário de Pernambuco e Jornal do Commercio, respectivamente, sobre Eduardo Campos, candidato à presidência do Brasil em 2014. As análises feitas mostraram que os modos de apropriação do discurso de outrem podem servir a efeitos de sentidos diversos entre si e que, quando da apropriação do discurso de outrem, o sujeito-jornalista não cede lugar ao outro, mas, sim, fala junto com ele, evidenciando posicionamentos ideológicos por meio das notícias.

El problema de la autoridad en la familia frente al reto de las redes sociales

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Miguel RUMAYOR

2016-12-01

Full Text Available En este artículo se aclarará cómo el ejercicio de la autoridad en su conjunto, particularmente en la educación en el ámbito familiar, se encuentra en una crisis histórica que se ha acentuado en nuestros días. En gran medida esto se debe a que la figura formativa de los padres ha perdido la capacidad poseída en otro tiempo. En relación a esto se explica la influencia de la globalización y las costumbres vividas en muchos hogares y de modo particular el acceso de los niños a las redes sociales. Teniendo en cuenta tal realidad, se analizan desde una óptica filosófico-educativa los modos más adecuados por medio de los cuales los padres podrán recuperar y fortalecer su autoridad formativa, para que mediante su uso consigan que el acceso a las redes sociales contribuya a que los niños se formen alcanzando el equilibrio afectivo y el desarrollo personal necesarios para su vida.

Resiliencia, Personalidad Resistente y Crecimiento en Cuidadores de Personas con Demencia en el Entorno Familiar: Una Revisión

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Violeta Fernández-Lansac

2011-01-01

Full Text Available La investigación en torno al cuidado no profesional de mayores con demencia ha proliferado a lo largo de los últimos años, constatando muchos autores que, del mismo modo en que el cuidado se asocia a un buen número de consecuencias negativas, diversos efectos positivos pueden derivarse de esta experiencia. Sin embargo, y a pesar del impacto de la corriente positiva en la actualidad, son muy escasos los estudios que valoran la personalidad resistente (hardiness, la resiliencia y el crecimiento personal en cuidadores. El presente artículo hace una revisión sistemática de las contribuciones más relevantes a este campo, a partir del análisis de nueve publicaciones. Todos estos trabajos evalúan, de un modo cuantitativo, la resiliencia, el hardiness o el crecimiento en familiares de personas con demencia. Las características y resultados de dichos trabajos serán valoradas, teniendo en consideración sus implicaciones para el estudio y la atención a los cuidadores

El futuro de la tecnología y la tecnología del futuro

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José Luis Cordeiro

2014-12-01

Full Text Available Vivimos en un mundo centrado en el Pacífico con las dos grandes potencias del futuro que son China e India; el mundo está centrado en el Pacífico aunque todo es relativo. Ustedes deben ver el mundo con una nueva cara, no solo que vean el mundo, sino que vean más allá del mundo y que piensen incluso en el resto del universo. En los próximos años vamos iniciar finalmente la colonización de Marte. Marte es el planeta más parecido que hay a la Tierra y de hecho se está planteando cómo terraformar Marte, cómo cambiar el ambiente de Marte para que puedan vivir los humanos en los próximos años y hay un grupo de científicos trabajando activamente en esto y no solo con exploración humana sino robótica, y la NASA está trabajando en una misión espacial para las próximas décadas porque se están encontrando muchos planetas en el resto del universo en los cuales se cree que en algunos de ellos hay vida, en las próximas décadas probablemente descubramos algún planeta que tiene vida y esto va a cambiar la concepción misma de la vida en la Tierra. Estamos viviendo los tiempos más increíbles y no solo en la Tierra sino más allá de la Tierra incluso hay un grupo de peruanos trabajando con lo que se llama la Sociedad Marte para iniciar la colonización de Marte, en estos momentos existen ocho misiones espaciales para ir a Marte, cuatro de ellas son públicas, o sea de gobiernos como Estados Unidos a través de la NASA, Rusia que también tiene una misión, China y la Unión Europea; además de cuatro misiones privadas. Varios peruanos están participando en dos de estas misiones privadas para ir a Marte, de hecho están buscando voluntarios para ir a dicho planeta. Se han descubierto muchísimos planetas, muchos de estos son equivalentes a la Tierra y en la NASA con nuevos telescopios espaciales piensan en los próximos años poder ver sus atmosferas para comprobar si tienen presencia de gases que indican la presencia de vida. Vivimos

Modos de produzir cuidado e a universalidade do acesso na atenção primária à saúde

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Erica Lima Costa de Menezes

Full Text Available Resumo Este artigo faz uma revisão da literatura nas bases SciELO, Lilacs, BVS e Medline, e analisa como o trabalho dos profissionais na atenção primária no Brasil contribui para o acesso universal aos serviços de saúde. De uma seleção inicial de 901 artigos, foram incluídos 52, publicados entre janeiro de 2005 e outubro de 2015. Os achados evidenciam elementos do trabalho que influenciam a capacidade do serviço em assegurar o acesso, relacionados a modos de produzir cuidado que ampliam o acesso às ações de saúde. São destacados os seguintes elementos: normativas prescritoras do trabalho; espaços que favorecem o encontro (acolhimento, visitas domiciliares, apoio matricial e atividades coletivas; formação/experiência do trabalhador; relação com o usuário e com o território; vínculo e responsabilização; respeito à autonomia e aos diferentes saberes e culturas; conhecimento da realidade local; carga de trabalho; e valorização/satisfação profissional. Os modos de produzir cuidado descritos contribuem para a ampliação do acesso, tanto pela existência de confiança, vínculo e capacidade de dar resposta às demandas apresentadas pelos usuários, como pela organização de serviços mais flexíveis e atentos às necessidades de saúde dos sujeitos individuais e coletivos.

Modos de subjetivação femininos, família e trabalho

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Maria Cristina Lopes de Almeida Amazonas

Full Text Available Este artigo discute os modos de subjetivação femininos no mundo contemporâneo no contexto do trabalho e da família e problematiza o conceito de gênero tomando-o como relacional, plural, em uma tentativa de escapar à lógica binária. O artigo se baseia nos dados de uma pesquisa em que foram entrevistadas seis mulheres entre 25 e 35 anos de idade, de nível socioeconômico médio, cujas respostas foram submetidas à análise de conteúdo. Os resultados mostram mulheres que fazem parte de um contexto histórico que lhes endereça um discurso de sujeito autônomo e livre, que atribuem valor ao trabalho como profissão, mas que, ao mesmo tempo, são demandadas a atender as exigências de maridos e filhos no espaço privado. As múltiplas identidades que assumem requisitam posições de sujeito contraditórias, atravessadas pelas questões de gênero masculino/feminino que não mais dão conta de suas atuações no mundo. No entanto, simultaneamente, seus discursos indicam que as mulheres começam a buscar caminhos alternativos que as ajudem a superar essas relações dicotômicas.

Tratamento do feno de braquiária pelo fungo Pleurotus ostreatus Pretreatment effects on fiber degradation of brachiaria hay by Pleurotus ostreatus fungus

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Patrick Schmidt

2003-12-01

Full Text Available A inoculação de forragens com fungos lignocelulolíticos é uma opção para melhorar a qualidade destas sem adição de produtos químicos. O tratamento do substrato influencia a ação do fungo e a qualidade final do produto. Neste experimento, aplicaram-se quatro tratamentos (compostagem do feno inteiro, compostagem do feno picado, hidratação do feno em água fria e hidratação do feno em água quente a um feno de Brachiaria decumbens. Aos tratamentos seguiu-se inoculação com o fungo Pleurotus ostreatus e incubação por 35 dias, sob temperatura controlada. Usou-se o delineamento inteiramente casualizado, com quatro repetições e medidas repetidas. Amostras foram colhidas semanalmente para acompanhar a degradação do substrato, mediante a análise química do feno. Observou-se aumento linear, com o decorrer do tempo, no teor de proteína bruta (PB e na proporção de lignina na parede celular (LIG-FDN, e decréscimo linear nos valores de fibra em detergente neutro (FDN, celulose e hemicelulose. Não se observou efeito de tratamento no teor de FDA. Os tratamentos com compostagem apresentaram maiores valores de PB, lignina e LIG-FDN e menores de FDN e hemicelulose. Não se observou diferença entre os tratamentos com hidratação. O tratamento do feno de braquiária com o fungo propiciou degradação da fração fibrosa e aumento no teor de PB, com efeito mais intenso nos tratamentos que usaram compostagem. A ação do fungo foi mais efetiva sobre a hemicelulose que sobre os demais componentes da fibra.The innoculation of forages with lignocellulolytic fungi is an option for improving quality without adding chemical products. Substrate quality influences fungal activity and endproduct quality. The effects of four treatments (composting of whole hay, composting of chopped hay, soaking in cool water and soaking in hot water on a Brachiaria decumbens hay were evaluated. The treatments were followed by innoculation with Pleurotus ostreatus

Anemia y deficiencia de hierro en mujeres en edad reproductiva usuarias del Hospital Regional de Villa Hayes, Paraguay

OpenAIRE

Jessica Riveros; Gloria Echagüe; Santiago Evers; Laura Mendoza

2015-01-01

La anemia es un problema de salud pública a nivel mundial. En Paraguay, existen datos limitados sobre la frecuencia de anemia en mujeres en edad reproductiva no gestantes. Este estudio piloto descriptivo de corte transverso tuvo como objetivo determinar la frecuencia de anemia y deficiencia de hierro, el estado nutricional, hábitos alimentarios y tóxicos en 99 mujeres no gestantes en edad reproductiva de 18 a 48 años que acudieron al Hospital Regional de Villa Hayes en Octubre del 2.014. La a...

Modos de control del espacio urbano en un contexto de poder autoritario. El caso de Santa Fe, Argentina, 1976-1981

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Julieta Citroni

2011-11-01

Atento a ello, utiliza una metodología ecléctica y cualitativa que conjuga enfoques y conceptos de disciplinas y tradiciones analíticas diversas para analizar las fuentes producidas por la administración municipal, la prensa santafesina y el campo arquitectónico-urbanístico del momento, conjuntamente con la producción de entrevistas orales. De esta forma pretende describir las transformaciones del espacio urbano comprendiéndolas como parte de los modos de control tendientes a dar continuidad a la dominación social, e interpretar los significados que éstas adquirieron para los actores implicados.

Concepções e Modos de Viver em Família: A perspectiva de Mulheres Lésbicas que Têm Filhos

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Lira, Aline Nogueira de; Morais, Normanda Araujo de; Boris, Georges Daniel Janja Bloc

2017-01-01

RESUMO Investigaram-se as concepções e modos de viver em família de quatro mulheres lésbicas que têm filhos. Utilizou-se uma entrevista aberta para coleta de dados e a análise baseou-se no método fenomenológico crítico. Os resultados mostraram que: (a) as estratégias para acesso à parentalidade (adoção, coparentalidade e relações heterossexuais anteriores) são diversas e ora reproduzem o binarismo heterossexual, ora o desnaturalizam; (b) a família foi caracterizada como um espaço afetivo e de...

Benefit from the association of small amounts of tannin-rich shrub foliage (Acacia cyanophylla Lindl.) with soya bean meal given as supplements to Barbarine sheep fed on oaten hay

International Nuclear Information System (INIS)

Ben Salem, H.; Makkar, H.P.S.; Nefzaoui, A.; Abidi, S.; Hassayoun, L.

2005-01-01

Two trials were conducted to test the hypotheses that (i) feeding small amount of a tanniniferous shrub foliage (Acacia cyanophylla Lindl., acacia) increases the proportion of rumen undegradable protein, and consequently benefits growth performance in Barbarine lamb; and (ii) such positive effect depends on the timing of feeding tannin source (i.e. acacia) relative to protein source (soya bean meal, SBM). Total (TT) and condensed tannin (CT) concentrations in air-dried acacia leaves used in this study averaged 29 g tannic acid and 48 g leucocyanidin equivalents per kg dry matter (DM), respectively. In trial 1, rumen fistulated ewes received oaten hay (hay) ad libitum and 200 g SBM (D1), D1 and 100 g acacia fed with the SBM (D2, mixed strategy) or as D2, but the SBM fed 1 h later than acacia when acacia was consumed completely (D3, sequential strategy). Hay intake, diet digestibility, rumen fermentation parameters (pH, ammonia nitrogen (NH 3 -N) and total volatile fatty acids) and in situ degradation of SBM nitrogen were similar between D1 and D2 (P > 0.05). However, the sequential strategy (D3) resulted in efficient use of N as reflected by the decrease of crude protein digestibility (CPD), plasma urea, NH 3 -N concentration and in situ degradation of SBM nitrogen. In trial 2, four groups each of six Barbarine lambs (initial LW 35.3 ± 3.7 kg) received for 90 days: hay ad libitum and 200 g SBM (D1), D1 and 20 g polyethylene glycol (PEG, MW 4000) mixed with SBM (D2), D1 and 100 g acacia with the SBM fed 1 h later when acacia was completely consumed (sequential strategy) (D3) or D3 and 20 g PEG fed with the SBM (D4). Polyethylene glycol was here used to deactivate tannins. Hay intake and DM, organic matter and neutral detergent fibre digestibility were similar among dietary treatment (P > 0.05). However, supplementing lambs with SBM and acacia without PEG (D3) resulted in a significant decrease (P 0.05). However, those supplemented with acacia without PEG (D3) had

Chemical composition, fatty acid content and antioxidant potential of meat from goats supplemented with Moringa (Moringa oleifera) leaves, sunflower cake and grass hay.

Science.gov (United States)

Qwele, K; Hugo, A; Oyedemi, S O; Moyo, B; Masika, P J; Muchenje, V

2013-03-01

The present study determined the chemical composition, fatty acid (FA) content and antioxidant capacity of meat from goats supplemented with Moringa oleifera leaves (MOL) or sunflower cake (SC) or grass hay (GH). The meat from goat supplemented with MOL had higher concentrations of total phenolic content (10.62±0.27 mg tannic acid equivalent E/g). The MOL significantly scavenged 2,2'-azino-bis-3-ethylbenzothiazoline-6-sulfonic-acid (ABTS) radical to 93.51±0.19% (93.51±0.19%) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical to 58.95±0.3% than other supplements. The antioxidative effect of MOL supplemented meat on catalase (CAT), reduced glutathione (GSH), superoxide dismutase (SOD) and lipid oxidation (LO) was significantly (Pmeat from goat feed on grass hay or those supplemented with sunflower seed cake. The present study indicated that the anti-oxidative potential of MOL may play a role in improving meat quality (chemical composition, colour and lipid stability). Copyright © 2012 Elsevier Ltd. All rights reserved.

Escolha de modo no acesso terrestre a aeroportos considerando a confiabilidade do tempo de viagem

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Bianca Bianchi Alves

2011-09-01

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Resumo: O objetivo do trabalho é identificar variações sistemáticas da importância atribuída por viajantes aéreos aos fatores que influenciam a escolha de modo para acesso terrestre ao Aeroporto Internacional de São Paulo. A análise utilizou dados de uma pesquisa de preferência declarada conduzida com residentes na região viajando para destinos internacionais. Os indivíduos ordenavam 4 alternativas: automóvel, táxi, ônibus expresso existente e um trem expresso proposto, descritas pelos atributos de custo, tempo esperado de viagem e confiabilidade do tempo de viagem, expressa através de uma margem de segurança. Modelos de escolha discreta foram estimados, considerando os efeitos de painel, aninhamento e de inércia. Os resultados indicaram que viajantes a negócios e de alta renda são menos sensíveis ao custo da viagem de acesso ao aeroporto. A importância da confiabilidade do tempo de viagem é maior do que a atribuída ao tempo esperado de viagem e não foi afetada por variações sistemáticas.

Palavras-chave: valor de confiabilidade; acesso terrestre a aeroportos; escolha de modo; modelo logit misto; preferência declarada.

Abstract: The paper analyses systematic variation of tastes and preferences of air travelers regarding the choice of mode for the ground access to the São Paulo International Airport. A stated preference survey was conducted with individuals traveling to international destinations. Each respondent ranked 4 alternatives: auto, taxi, the existing express bus, and a proposed express train. Attributes describing modes were travel cost, average travel time and travel time reliability, expressed as a safety margin – the time period allocated by the individual for arriving at the airport at the preferred time. Discrete mode choice models were estimated, considering panel, nesting and inertia effects. Results indicated that business and higher income

CALCIUM SOURCE EFFECT ON APPARENT DIGESTIBILITY OF GRASS HAY Brachiaria decumbens Staph cv. Basiliski EFEITO DA FONTE DE CÁLCIO (calcário vs Lithothamnium calcareum) NA DIGESTIBILIDADE APARENTE DE CAPIM Brachiaria decumbens Staph cv. Basiliski

OpenAIRE

Deborah Gonçalves Rodrigues; Clizeide R. Oliveira; Benir de Oliveira; Celso de Paula Costa; Geisa Fleury Orsine

2007-01-01

An experiment was developed to determine the effect of addition of the marine alga Lithothamnium calcareum in the apparent digestibility of a low quality forage. Twelve adult lambs were kept in metabolical individual cages using a randomly design with three replications and four treatments as follows: I - Brachiaria decumbens grass hay, processed after the seed harvest; II - Hay plus 1000 ppm of calcium from CaCO3 ...

Abuse of Power, Gender Violence and the Tragic Convention: the Dénouement of «No hay cosa como callar» by Calderón

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Ignacio Arellano

2018-01-01

Full Text Available his article analyzes the dénouement of Calderon’s No hay cosa como callar, with the aim of showing the tragic quality of the work, which destroys the possibility of the central character being happy, as she has been raped by a cynical and abusive gentleman.

Dos nuevas Bignoniáceas del Valle del Magdalena

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Dugand Armando

1942-11-01

Full Text Available Memora Romeroi: La especie aquí descrita pertenece a la sección Eumemora K. Schum. y es muy afín, según descripción, a M. caracasana K. Schum., de Venezuela, pero se distingue principalmente por tener racimos florales mucho más alargados, geminados y axilares, con 8, 12 a más flores opuestas, y por las brácteas infracalicinales de forma anchamente espatulada. Además, el cáliz y la corola son más cortos, particularmente el tubo basilar de esta última. EI raquis foliar y especialmente los peciolulos de M. Romeroi son diminutamente pubérulos, al menos durante mucho tiempo, y esta pubescencia menuda se presenta también en el raquis floral. / Tanaecium exitiosum: El doctor Rafael Mora, colector de esta muy interesante nueva especie, anota lo siguiente: "Arbusto que alcanza una altura de 2 metros; ocasionalmente crece más, arrollándose como bejuco a las otras plantas; las flores son de color blanco y de aspecto tubular alargado. La planta es abundante en las regiones secas de Barranca Bermeja y hay potreros que están completamente invadidos por ella".

Storage characteristics, nutritive value, energy content, and in-vivo digestibility of moist large-rectangular bales of alfalfa-orchardgrass hay treated with a propionic-acid-based preservative

Science.gov (United States)

Unstable weather, poor drying conditions, and unpredictable rainfall events often place valuable hay crops at risk. Recent research with large-round bales comprised of alfalfa (Medicago sativa L.) and orchardgrass (Dactylis glomerata L.) has shown that these large-bale packages are particularly sens...

Buscando a compreensão do enfrentamento da AIDS no Brasil Buscando la comprensión del modo de enfrentamiento de la "SIDA" en Brasil Understanding AIDS in Brazil

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Lúcia Yasuko Izumi Nichiata

1995-01-01

Full Text Available O trabalho dimensiona e analisa a tendência da evolução da AIDS no Brasil e busca compreender o modo como se deu o seu enfrentamento no país considerando o contexto histórico e social em que a infecção emerge e dissemina.El trabajo dimemsiona y analiza la lendencia de la evolución de la "SIDA" en Brasil y busca comprender el modo en que se dió y su abordaje en el país, considerando el contexto histórico y social en que la infección emerge y se disemina.The authors discuss and analyze the magnitude and the evolution of the AIDS epidemic in Brazil. They evaluate how the infection has being approached in this country, taking into account the historical and social context in which it appeared and disseminated.

A potência do cyborg no agenciamento de modos de subjetivação pós-identitários: conexões parciais entre arte, psicologia e gênero

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Roberta Stubs

2014-12-01

Full Text Available Em consonância com uma psicologia mais afeita ao devir do que às essências, a proposta deste artigo é fundamentar a importância de se compreender a tradicional concepção de subjetividade enquanto um processo de subjetivação, principalmente no que tange as discussões sobre identidade e gênero na atualidade. Feito isso, traçamos algumas aproximações entre arte e psicologia, compreendendo a primeira como um potente dispositivo para favorecer modos de subjetivação que tenham a diferença como inerência relacional. Por fim, lançamos nossos olhares em alguns fragmentos da obra Cremaster do artista contemporâneo Mathew Barney para perceber o modo como a obra ultrapassa os binarismos de gênero e lança linhas pós-identitárias de subjetivação.

Sueño y epilepsia

OpenAIRE

Julia Santín, M.

2013-01-01

La relación entre epilepsia y sueño ha sido descrita desde hace más de dos mil años. Es así como Aristóteles en “Sobre el Sueño y la Vigilia” describe “tanto el sueño como la epilepsia atacan, y en ese sentido el sueño es una crisis. Consecuentemente en muchos casos la epilepsia comienza en el sueño y hay hombres que convulsionan durante el sueño pero no cuando están despiertos”. En tanto Hipócrates menciona en uno de sus aforismos “miedos, furia, delirio, saltos de la cama y convulsiones dur...

Sobre el grado de presencia de la dimensión bioética en la historia de la ingeniería en el mundo hispano

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Carlos Eduardo de Jesús Sierra Cuartas

2009-01-01

Full Text Available La historia de la ciencia y la tecnología es un fi lón valioso para rastrear las ideas de semblante bioético mucho antes de la intuición de Van Rensselaer Potter. En el mundo hispano, pese a que hay demasiado por hacer en materia de investigación de la respectiva historia de la ciencia y la tecnología, existen hechos significativos que muestran la presencia de un semblante ético en relación con la ciencia y sus frutos en diversos científicos e ingenieros hispanos en siglos pasados, junto con algunas figuras pertinentes de la filosofía.

Algunas reflexiones sobre la Historia de las Universidade

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Julio RUIZ BERRIO

2010-03-01

Full Text Available RESUMEN: La Conferencia permanente de Rectores, Presidentes y Vicecancilleres de las universidades europeas ha puesto en marcha un proyecto para elaborar una historia comparada de las universidades europeas. Hace muchos años que no se publica una historia con esas características, en donde la coordenada del tiempo va desde su creación hasta el momento presente, donde el espacio hace referencia —supongo— a todas las universidades que hay y ha habido en Europa. Y digo «supongo», porque por European universities lo mismo se puede entender las del territorio de Europa que las de carácter europeo, en cuyo caso son bastantes más.

Las comunidades de aprendizaje: Un modelo de educación dialógica en la sociedad del conocimiento

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Carmen Elboj Saso

2003-01-01

Full Text Available Hay muchos proyectos educativos que, en diferentes lugares del mundo, están obteniendo resultados significativos en conseguir los mejores aprendizajes y en el logro de una convivencia solidaria. Comunidades de Aprendizaje es uno de estos proyectos caracterizado y basado en las mejores prácticas educativas que están dando respuesta a las necesidades de la sociedad del conocimiento. Entre sus características, resalta el aprendizaje dialógico, es decir, el diálogo igualitario entre toda la comunidad (profesorado, alumnado, familiares, entidades, profesionales de ámbitos educativos y sociales, voluntariado en un común esfuerzo solidario por lograr la igualdad educativa de todas las alumnas y alumnos.

De una didáctica de la filosofía a una filosofía de la educación

OpenAIRE

Boavida, João

2006-01-01

El artículo establece la relación entre la didáctica de la Filosofía y la Filosofía de la Educación, intentando mostrar que hay, de hecho, como consideran muchos autores, una relación entre los dos. Pero no porque la Filosofía implique siempre, como algunos piensan, un cierto tipo de enseñanza y este presuponga una Filosofía de la Educación; sino sólo cuando el proceso de enseñanza-aprendizaje de la Filosofía corresponde a la naturaleza de la Filosofía y a su exigencia específica. O sea,...

¿Hay una teoría normativa de la justicia en Marx?

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Felipe Curcó Cobos

2016-12-01

Full Text Available La obra de Marx ha suscitado una  añeja polémica entre sus estudiosos. Algunos han mantenido que el lenguaje desarrollado en ella es estrictamente explicativo. Dicho lenguaje expresaría ante todo un saber científico expurgado de todo contenido moral (sobre la estructura del capital, las fuerzas que causan la dinámica social y las leyes que la rigen. En el otro extremo, en cambio, otros han argüido que en Marx hallamos más bien un lenguaje ético orientado a denunciar los crímenes y miserias de una determinada formación social con el fin de oponerle otra. En este artículo defiendo la idea de que en la obra de Marx hay elementos tanto para afirmar una cosa como la otra. Sin embargo, argumento que la actualidad del pensamiento marxista  reside esencialmente en los elementos éticos y normativos que configuran la dimensión moral de su planteamiento.

Effect of feeding long or short wheat hay v. wheat silage in the ration of lactating cows on intake, milk production and digestibility.

Science.gov (United States)

Shaani, Y; Nikbachat, M; Yosef, E; Ben-Meir, Y; Mizrahi, I; Miron, J

2017-12-01

The objective of this study was to evaluate in lactating cows the effect of either chopping or ensiling of wheat roughage on: intake, digestibility, lactation performance and animal behavior. Three groups of 14 lactating cows each, were fed total mixed rations (TMRs) based on either long wheat hay (HL), short wheat hay (HS) or wheat silage (SI), as the sole roughage source (30% of TMR dry matter (DM)). Parameters examined: sorting behavior, DM intake, milk yield and composition, rumination, recumbence, average daily rumen pH, digesta passage rate, and in-vivo digestibility. Performance data was summarized by day and analyzed using a proc-mixed model. The content of physically effective neutral detergent fiber (peNDF) was similar in the HL and SI and lower in the HS, resulting in similar differences among the three corresponding TMRs. In vitro DM digestibility of wheat silage was higher than that of the two hays (65.6% v. 62.8%) resulting in higher in vitro DM digestibility of the SI-TMR compared with the hay-based TMRs (79.3 v. 77.0%). HS-TMR was better than HL- or SI-TMRs at preventing feed sorting by cows after 12 or 24 h eating of the diets. Cows fed HS-TMR consumed more DM and NDF but less peNDF than the other two groups. Average daily rumen pH was similar in the three groups, but daily rumination time was highest in the cows fed HS-TMR. Rumen retention time was longest in cows fed HL-TMR. DM digestibility in cows fed SI-TMR was higher than that of HS and HL groups (65.2%, 61.8% and 62.4%, respectively), but NDF digestibility was similar in the three treatments. The highest intake of digestible DM was observed in cows fed SI-TMR, HS cows were intermediate and HL cows were the lowest. Consequently, cows fed SI-TMR had higher yields of milk, 4% fat corrected milk and energy-corrected milk (47.1, 42.9 and 43.2 kg/day, respectively) than cows fed HS-TMR (45.7, 41.0 and 41.0 kg/day, respectively) or HL-TMR (44.1, 40.3 and 40.3 kg/day, respectively). Net energy

Uranium hydrogeochemical and stream sediment reconnaissance of the Mt. Hayes NTMS quadrangle, Alaska

International Nuclear Information System (INIS)

1981-05-01

Results of a hydrogeochemical and stream sediment reconnaissance of the Mt. Hayes quadrangle, Alaska, are presented. In addition to this abbreviated data release, more complete data are available to the public in machine-readable form. In this data release are location data, field analyses, and Laboratory analyses of several different sample media. For the sake of brevity, many field site observations have not been included in this volume. These data are, however, available on the magnetic tape. Appendices A to D describe the sample media and summarize the analytical results for each medium. The data were subsetted by one of the Los Alamos National Laboratory (LANL) sorting programs into groups of stream sediment, lake sediment, stream water, lake water, and ground water samples. For each group which contains a sufficient number of observations, statistical tables, tables of raw data, and 1:1000000 scale maps of pertinent elements have been included in this report

activismo y estéticas en experimento

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Omar Rincón

2005-01-01

Full Text Available Podemos comunicarlo todo: tenemos las tecnologías de la comunicación cada vez más cerca; pero no podemos contar nada, porque no tenemos nada qué decir, ni sabemos cómo decirlo. Hay que inventarlo todo, intervenir de nuevo la sociedad desde la comunicación. Es necesario convertir los medios en experiencia estética, social y política. ¿Cómo? Usando a las tecnologías para el activismo y el experimento; recurriendo a los llamado retro, porque no es lo más actual, lo más mercado, como experiencia de inspiración y emoción. Hay que volver a las estéticas, a los modos de narrar y a las historias que están inscritas en nuestras identidades locales; en nuestras sensibilidades femeninas, juveniles o sexuales; en nuestras tradiciones étnicas, o en nuestros modos urbanos. Sólo basta una minicámara para inventar el universo. En este ensayo se realiza un alegato contra los universos estético-narrativopolíticos construidos por la máquina televisiva y la homogeneidad del mercado. En este texto se argumenta a favor del activismo comunicativo, de la exploración tecnológica y de la inspiración étnica como estrategias para generar una mayor conciencia sobre el valor social de la comunicación, la intervención estético-narrativa de la sociedad y la importancia política de los medios de la gente.

Design and operating experience on the U.S. Department of Energy Experimental Mod-O 100 kW Wind Turbine

Science.gov (United States)

Glasgow, J. C.; Birchenough, A. G.

1978-01-01

The Mod-O 100 kW Experimental Wind Turbine was designed and fabricated by NASA, as part of the Federal Wind Energy Program, to assess technology requirements and engineering problems of large wind turbines. The machine became operational in October 1975 and has demonstrated successful operation in all of its design modes. During the course of its operations the machine has generated a wealth of experimental data and has served as a prototype developmental test bed for the Mod-OA operational wind turbines which are currently used on utility networks. This paper describes the mechanical and control systems as they evolved in operational tests and describes some of the experience with various systems in the downwind rotor configuration.

Anthelmintic effect of carob pods and sainfoin hay when fed to lambs after experimental trickle infections with Haemonchus contortus and Trichostrongylus colubriformis.

Science.gov (United States)

Arroyo-Lopez, Celia; Manolaraki, Foteini; Saratsis, Anastasios; Saratsi, Katerina; Stefanakis, Alexandros; Skampardonis, Vasileios; Voutzourakis, Nikolaos; Hoste, Hervé; Sotiraki, Smaragda

2014-01-01

The aim of the study was to compare the in vivo anthelmintic activity of sainfoin hay (Onobrychis viciifolia) and carob pod meal (Ceratonia siliqua) against gastrointestinal nematodes. Seven days before infection, 64 naive lambs were assigned to four different groups: Group S received sainfoin hay and group CAR was fed with carob pods. The remaining lambs received lucerne hay (Medicago sativa) and were assigned to positive (non-treated, NT) and negative (treated, T) control groups (treatment with albendazole). On day 0, lambs were artificially trickle infected for 6 weeks, with a mixture of infective larvae of Haemonchus contortus and Trichostrongylus colubriformis. Parasitological and pathophysiological parameters were measured repeatedly during the 2-month study. Compared to the NT group, decreases in egg excretion were observed in the CAR and S groups with significant differences only found for sainfoin (p < 0.05). At necropsy, group S showed decreases in the total worm numbers of both nematode species with significant differences for H. contortus. In contrast, no differences were noticed for the CAR group. Compared to the NT group, lower values for fecundity of female H. contortus were found in the S and CAR groups, however differences were non-significant. No differences in body weight gains were found between groups. Consistent results were found showing significantly higher packed cell volume (PCV) values in the T and S groups compared to NT and CAR groups. Overall, these results confirm a positive effect associated with the feeding of lambs with tanniniferous resources on host resilience (PCV values) and against gastrointestinal parasitic nematodes by affecting some biological traits of worm populations (e.g. eggs per gram of faeces and worm numbers). However, the anthelmintic effects differed between the two tannin-containing resources, which might be associated with the quantity and/or quality of secondary metabolites (condensed tannins and/or other

Fractografia de compósito estrutural aeronáutico submetido ao ensaio de tenacidade à fratura interlaminar em Modo II

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Geraldo Maurício Cândido

2014-01-01

Full Text Available A fractografia consiste no estudo detalhado da morfologia da superfície de fratura de materiais. Para isto, a técnica de microscopia eletrônica de varredura (MEV é usualmente utilizada para determinar a causa de falha e a relação do modo de falha com a microestrutura do material em análise. Essas informações permitem estabelecer analogia entre estrutura, propriedade e processamento do material com a iniciação e a propagação da falha. Neste estudo, a análise fractográfica é utilizada para investigar os aspectos que caracterizaram a falha por delaminação em Modo II de laminados poliméricos de uso estrutural. Para isto, espécimes com um inserto de Teflon® introduzido no plano médio de uma das extremidades do laminado (End-Notched foram submetidos ao ensaio de carregamento em flexão em quatro pontos. Os espécimes foram preparados a partir de um laminado fabricado em autoclave, com camadas (0º, 90º de material pré-impregnado de tecido bidirecional em estilo plain weave de fibras de carbono IM7/resina epóxi M21. Os resultados da análise mostram que a superfície de fratura é muito irregular, com a visualização de fibras e impressões de fibras na matriz. Aspectos fractográficos de cúspides e formatos de concha, originados durante o cisalhamento da matriz polimérica, são também observados.

MODOS DE SUBJETIVAÇÃO DE JOVENS EM UM TERRITÓRIO DE CONFLITO SOCIOAMBIENTAL

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Rafael Prosdocimi Bacelar

Full Text Available RESUMO A instalação de um grande empreendimento de mineração transformou a dinâmica social e ambiental na região próxima à Conceição do Mato Dentro, interior de Minas Gerais. A proposta extrativista alterou profundamente as relações históricas entre sujeitos, comunidades e territórios. A partir de uma pesquisa de orientação etnográfica analisamos como os jovens se subjetivam frente aos deslocamentos provocados na região. Os modos de subjetivação se constituem na configuração de formas de ser, sentir e agir frente às mudanças objetivas no território. Embora os jovens se queixem do empreendimento em razão dos problemas socioambientais causados, os mesmos reconhecem que a mineradora gerou o aumento de renda, a oferta de empregos e a promessa de desenvolvimento. Ao escutar as palavras dos jovens, vemos como eles são sujeitos que refletem e se posicionam frente aos conflitos em curso na região.

Capital social e información para la salud en el contexto del modo de vida de agricultores de pequeña escala

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Fadya Orozco

2015-01-01

Full Text Available El estudio explora la relación entre el capital social y la información para la salud en agricultores de pequeña escala, en el contexto de su modo de vida. Tener información al respecto promovería la adopción de prácticas agrícolas con menos impacto en su salud debido a la reducción del uso de pesticidas de alta toxicidad. La investigación se desarrolló a través de un diseño longitudinal de medidas repetidas, en julio de 2007 (T1 y febrero de 2010 (T2, en 12 comunidades agrícolas de Ecuador (n=208. La información respecto a las prácticas de producción agrícola, entre ellas, el manejo integrado de plagas, y la toxicidad de los pesticidas constituyeron las variables dependientes. La participación en organizaciones, y la cohesión social, entre otros aspectos del capital social fueron tratados en el análisis como variables independientes. Los hallazgos sugieren que la información para la salud es transmitida por las estructuras del capital social en dependencia de su valor de uso en el marco del modo de producción agrícola.

Meal pattern analysis for effects of compound feed formulation in mid to late lactating dairy cows fed hay and compound feed both ad libitum

NARCIS (Netherlands)

Leen, F.; Navarro-Villa, A.; Fowers, R.; Martin-Tereso, J.; Pellikaan, W.F.

2014-01-01

The Kempen System is a dairy feeding system allowing ad libitum access to pelleted compound feed (CF) and hay. This system allows high DM intake (DMI) up to 30 kg DM (80% CF), but small and frequent CF meals are essential to reduce negative ruminal pH fluctuations. Little is known about feed intake

O significado da mudança no modo de vida da pessoa com estomia intestinal definitiva El significado del cambio en el modo de vivir de la persona con ostomía intestinal difinitiva The meaning of the new way of life of individuals with permanent intestinal ostomy

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Ana Lúcia Silva

2006-08-01

Full Text Available O estudo teve como objetivo identificar e analisar as principais modificações que ocorrem no modo de vida do portador de estomia intestinal definitiva e as principais estratégias desenvolvidas para enfrentar a situação de ser estomizado. O método utilizado foi a história oral de vida tópica. As histórias foram obtidas de dez entrevistas semi-estruturadas com portadores de estomia intestinal definitiva. Utilizou-se a técnica de análise de conteúdo, especificamente, a temática. Da análise, emergiram cinco temas: a experiência de deparar-se com os sinais e sintomas da doença e necessidade de realização da estomia; o aprendizado de conviver com a estomia, o equipamento coletor e a busca de alternativas para suprir o uso do equipamento coletor; o enfrentamento das mudanças no modo de alimentar-se, vestir-se e vivenciar a sexualidade; a busca da reinserção social, o desafio de enfrentar a morte e a procura de perspectivas futuras; a busca da rede de apoio: crenças religiosas e espirituais, família e associação dos estomizados.La finalidad del estudio fue identificar y analizar las principales modificaciones que ocurren en el modo de vivir del portador de ostomía intestinal definitiva así como las principales estrategias desarrolladas para enfrentar la situación de ser ostomizado. El método utilizado fue la historia oral de vida tópica conseguida a partir de diez entrevistas semiestructuradas con los portadores de ostomía intestinal definitiva. Se utilizó la técnica de análisis de contenido, específicamente la temática. Del análisis emergieron cinco temas: La experiencia de depararse con las señales y síntomas de la enfermedad y necesidad de realización de la ostomía; el aprendizaje de la convivencia con la ostomía, el equipo colector y la búsqueda de alternativas para suplemento del uso de equipo colector; el enfrentamiento de los cambios en el modo de alimentarse, vestirse y vivir la sexualidad; la b

VERBO DE DIOS Y MEDIACIONES RELIGIOSAS EN EL PUEBLO

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Diego Irarrazavel

2015-01-01

Full Text Available Subrayo la cotidiana y simbolica interaccion del pueblo con la Revelacion, los logros en la lectura popular de la Palabra, y el magisterio latino-americano que sintoniza con la religiosidad popular. Diversos sujetos y hermeneuticas Suelen asumir mediaciones religiosas, y estan interpelados por creencias y festejos propios de cada pueblo. Los vientos renovadores provenientes de la constitucion Dei Verbum, los actuales acentos en el ´evangelio de la creacion`, y de modo especial, las energias religiosas de los pobres, incentivan una inculturada fidelidad a la Palabra de Vida. Tambien hay cuestiones abiertas a mayores indagaciones.

Modelización numérica del proceso de transferencia de calor, del flujo convectivo inducido y de la potencia generada en una central eólico solar. Poster

OpenAIRE

Hurtado, Francisco J.; Sánchez Kaiser, Antonio; Zamora Parra, Blas; Lucas Miralles, Manuel; Viedma Robles, Antonio

2008-01-01

La chimenea eólico solar tiene por objeto producir energía eléctrica a partir de la energía del sol. La radiación solar incide sobre el colector que, a modo de invernadero, calienta el aire que hay en su interior. El aire caliente asciende por flotación a través de la chimenea, accionando y haciendo girar mediante este movimiento ascendente la turbina que se encuentra en la base de la chimenea. Esta turbina se conecta a un generador eléctrico que produce la corriente. El sistema está...

Sociedad y economía del conocimiento. El caso colombiano

OpenAIRE

Diofanto Arce Tovar

2013-01-01

Desde los años setenta se presenta una reconfiguración del sistema productivo capitalista centrado en el conocimiento y la innovación. La inserción a este modo de desarrollo se convirtió en la meta de las naciones del mundo. Colombia no ha estado ajena a esta pretensión. Sin embargo, la visión idealista del conocimiento como factor de crecimiento y desarrollo, que se ha priorizado en todos los rincones del orbe, debe confrontarse con un análisis crítico que permita determinar qué hay detrá...

Cognitive Capitalism and Open Communication

OpenAIRE

Francisco Sierra Caballero

2016-01-01

Toda actividad investigadora presupone una práctica teórica mediada por la sobredeterminación de la actividad creativa. Un modo de producción es una relación social compleja que está en la base y es lógica de mediación social de las formas de pensamiento y enseñanza. En nuestro caso, de la Comunicología. No hay posibilidad de conocimiento sin trabajo. Toda mediación cognitiva es o presupone un proceso de producción. Eludir esto es negar la dimensión constitutiva esencial de toda obra o pensam...

Inserción Social de presos acusados de ejercer delitos de Violencia de Género. Análisis del Programa Rehabilitador PRIA

OpenAIRE

Abril Cerecero, Elisa

2016-01-01

La violencia de género es una de las mayores lacras presentes en el S.XXI, y para poder erradicarla, hay que llevar a cabo medidas e intervenciones en diferentes ámbitos. No sólo de modo proteccionista hacia la víctima, sino también de manera intervencionista con los hombres que la ejercen. Se trata del análisis de la intervención que se lleva a cabo con los hombres condenados por delitos de violencia de género, a través del Programa de Intervención con Agresores (PRIA), en los centros pen...

La agresividad en la conducción: Una investigación a partir de la visión de la población española

OpenAIRE

Alonso Plá, Francisco Manuel; Sanmartín, Jaime; Calatayud Miñana, Constanza; Esteban Martínez, Cristina; Montoro González, Luis; Alamar Rocatí, Beatriz; Toledo Castillo, Francisco; Chofre Talens, Enrique; Lijarcio Cárcel, Ignacio; Chisvert Perales, Mauricio Javier; Carrascosa, Vicente

2002-01-01

¿Qué entendemos por conducción agresiva? La agresividad en la conducción ha sido poco estudiada en nuestro país, hay una falta de conciencia pública y social. La investigación es el único modo de obtener herramientas eficaces para alcanzar objetivos con garantías de éxito. La difusión de los datos obtenidos puede servir para concienciar al público sobre esta problemática por lo que necesitamos conocer el grado de aceptación social de los distintos tipos de intervenciones. Las encuestas...

Democracia y periodismo científico

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Manuel Calvo Hernando

2015-01-01

Full Text Available Se asevera en el artículo que una democracia será incompleta si los ciudadanos siguen careciendo de los conocimientos y de la información para participar de modo consciente y reflexivo en la dirección de la sociedad. Hay una dependencia mutua entre ciencia y democracia, y esto solo puede resolverse adecuadamente mediante la comunicación. Los medios de comunicación comparten con la ciencia y la educación la sugestiva y arriesgada función de producir y sistematizar la información y el conocimiento para el público.

Extranjeras, de Helena Taberna: el ojo crítico del documental frente a la inmigración

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María Caballero Wangüemert

2014-06-01

Full Text Available “Cine e inmigración” es una iniciativa loable por muchos motivos y, desde aquí, quiero agradecérsela al coordinador, Guido Rings. Mi conexión con el cine, tras muchos años como fascinada espectadora del séptimo arte, derivó en la puesta en marcha de una asignatura de libre configuración, “Femenino plural: mujer, cine y literatura” que, con sus más y sus menos, llevo impartiendo doce años en la Universidad de Sevilla. Me ha dado muchas satisfacciones acercarme al alumno que descubre otro modo de ver/leer cine y me enseña a hacerlo, y conectar con el mundo de críticos, guionistas y directoras que, año tras año, pasan por mi asignatura transmitiendo su experiencia. En este contexto, me tentó Extranjeras (2003, un documental de 75 minutos en el que Helena Taberna trata de plasmar la vida cotidiana de quienes así son consideradas, un documental, en definitiva, sobre Madrid en femenino: femenina la cámara, femeninas las protagonistas.

Missing mixed mode: elemental structures (Estructuras básicas de los valores perdidos en encuestas con modos mixtos

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Antonio Alaminos

2012-01-01

Full Text Available One of the main concerns is the nature of the missing values. Let’s consider extremes for simplicity. If missing at random we have not to care about. But if missing shows structures that covariate with substantive variables we have to make decisions. There are, in fact, several options to take. We are speaking about one country, one mode. But if you go cross-cultural (or more precisely, cross-state nations and mixed modes many questions raise. For example, the simple one. What are we comparing? Reports and books usually go straight into variables distributions and coefficient comparisons. This is possible because the annalist presume "tabula rasa" effect from data collections procedures. But this is not, frequently, the real situation. This paper will expose the mixed missing mode imprint in international surveys. This will help to evaluate how deal with this problem. Also, to consider the real meaning of observed cross-national differences. | Una de las principales preocupaciones en la investigación mediante encuestas es la naturaleza de los valores perdidos. En el caso de que sean de ocurrencia aleatoria no generan problemas excesivos. Por el contrario, si los valores perdidos muestran estructuras que covarían con variables relevantes deben tomarse decisiones fundamentales. Eso en el caso de una encuesta en un país. Pero si se trata de una encuesta comparada, efectuada en varios países y además con modos mixtos de recolección de datos, la cuestión deviene bastante más complicada. Entre las preguntas surge la más evidente ¿Qué se está comparando realmente? Con frecuencia los investigadores emplean directamente distribuciones de frecuencia y coeficientes, haciendo “tabula rasa” de otros factores que puedan generar diferencias. Esta investigación muestra como la interacción entre las estructuras de valores perdidos, el modo de recolección de datos y el hecho de la cross-culturalidad es significativa. Se muestra su efecto en

Cinética ruminal do feno de Stylosanthes guianensis Ruminal kinetics of Stylosanthes guianensis hay

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M.M. Ladeira

2001-04-01

Full Text Available Sete carneiros fistulados no rúmen e no duodeno foram alojados em gaiolas metabólicas e alimentados com feno de Stylosanthes guianensis à vontade. Foi empregada a técnica de sacos de náilon para determinação da degradabilidade in situ do feno, utilizando-se os tempos de 3, 6, 12, 24, 48 e 72 horas para as retiradas dos sacos do rúmen. A taxa de passagem dos sólidos foi determinada utilizando-se cromo mordante como indicador. Os valores de pH no líquido ruminal foram medidos nos tempos de 0, 2, 4, 6 e 8 horas após a alimentação e a concentração de amônia nos tempos de 0, 1, 3, 5, 7, 9 e 11 horas após a alimentação. A taxa de degradação da matéria seca (MS foi de 8,5%/h, a degradabilidade potencial 38,1% e a degradabilidade efetiva 30,3%. A taxa de degradação da proteína bruta (PB foi de 9,7%/h, a degradabilidade potencial 56,0% e a degradabilidade efetiva 47,5%. A celulose apresentou maior degradabilidade efetiva que a hemicelulose, com valores de 22,5 e 8,9%, respectivamente. A taxa de passagem dos sólidos foi 2,7%/h. O pH diminuiu linearmente à medida que os tempos de coleta aumentaram. Para o tempo de 5,13 horas após a alimentação, foi estimada a concentração máxima de amônia de 12,18mg/100ml. O feno de S. guianensis apresentou alta taxa de degradação e baixa degradabilidade ruminal da MS e PB.Seven rumen and duodenal cannulated lambs, were allocated in metabolic cages and were fed ad libitum with Stylosanthes guianensis hay. The in situ technique was used for determination of the degradability of the hay, at 3, 6, 12, 24, 48 and 72 hours of incubation. The passage rate of solids was determined using chromium mordant as external marker. The pH of the rumen liquid was measured at 0, 2, 4, 6 and 8 hours after feeding and the ammonia concentration at 0, 1, 3, 5, 7, 9 and 11 hours after feeding. The degradation rate, the potential degradability, and the effective degradability of dry matter (DM were 8.5%/h, 38

Diseño y caracterización del modo de adquisición "On-The-Fly" en un SAR de 94 GHz

OpenAIRE

Martínez Cervera, Arturo

2015-01-01

El proyecto se centra en desarrollar un modo rápido de operación radar que permite adquirir las señales de apertura sintética sin interrumpir el desplazamiento de la plataforma móvil que transporta el radar. El proyecto incluye también una rigurosa validación experimental del sistema lo que ha permitido el estudio de varias aplicaciones de esta tecnología. Design of a continuous acquisition mode for a 94 GHz radar, execution of the modifications needed for the correct operation and validat...

Una reinterpretación de las metodologías económicas “tradicional” y “nueva” a partir de la Teoría de los Modos de Pensamiento de Dow

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Jorge Garcia-Arias

2015-01-01

Full Text Available En este trabajo empleamos la Teoría de los Modos de Pensamiento (Cartesiano/Euclídeo vs. Babilónico/Estoico, con el objetivo de, a partir de una metodología analítica, realizar un recorrido por las escuelas de Filosofía de la Ciencia más relacionadas con la Economía y ofrecer una reinterpretación de los avances en metodología económica a la luz de las aportaciones de Sheila Dow. La principal conclusión es que nuestra aproximación permite entender cómo parte de las diferencias metodológicas en Economía -y las diferentes maneras en que los economistas hacen Economía-, están basadas en el empleo de modos de pensamiento diferentes.

Reseña del libro: No hay dos iguales. Individualidad humana y naturaleza humana || Review of the book: No two alike. Human Nature and Human Individuality

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Silvia López-Larrosa

2015-11-01

Full Text Available Reseña de: Harris. J.R. (2015. No hay dos iguales. Individualidad humana y naturaleza humana. Madrid: Funambulista. 482 pp. ISBN: 978-84-943026-6-4. Depósito legal: M -36933-2041. [Original: No Two Alike. Human Nature and Human Individuality (2006.] El libro “No hay dos iguales” de Judith Rich Harris trata de responder a una pregunta difícil: por qué somos como somos, por qué incluso los hermanos, habiendo recibido una educación similar y compartiendo una dotación genética similar, son diferentes entre sí. Si alguien se había hecho antes esta pregunta, la autora, tras un recorrido casi detectivesco, le dará algunas respuestas basadas en nuestras dotaciones genéticas, en nuestras únicas interacciones con los demás y en la elaboración que como humanos hacemos de la información que nos proporcionan los que nos rodean.

Benefit from the association of small amounts of tannin-rich shrub foliage (Acacia cyanophylla Lindl.) with soya bean meal given as supplements to Barbarine sheep fed on oaten hay

Energy Technology Data Exchange (ETDEWEB)

Ben Salem, H. [Institut National de la Recherche Agronomique de Tunisie, Laboratoire des Productions Animales et Fourrageres, Ariana (Tunisia)]. E-mail: bensalem.hichem@iresa.agrinet.tn; Makkar, H.P.S. [Animal Production and Health Section, Joint FAO/IAEA Division, International Atomic Energy Agency, Vienna (Austria); Nefzaoui, A.; Abidi, S. [Institut National de la Recherche Agronomique de Tunisie, Laboratoire des Productions Animales et Fourrageres, Ariana (Tunisia); Hassayoun, L. [Institut National de la Recherche Agronomique de Tunisie, Laboratoire des Productions Animales et Fourrageres, Ariana (Tunisia); Ecole Superieure d' Agriculture de Mateur, Mateur (Tunisia)

2005-08-19

Two trials were conducted to test the hypotheses that (i) feeding small amount of a tanniniferous shrub foliage (Acacia cyanophylla Lindl., acacia) increases the proportion of rumen undegradable protein, and consequently benefits growth performance in Barbarine lamb; and (ii) such positive effect depends on the timing of feeding tannin source (i.e. acacia) relative to protein source (soya bean meal, SBM). Total (TT) and condensed tannin (CT) concentrations in air-dried acacia leaves used in this study averaged 29 g tannic acid and 48 g leucocyanidin equivalents per kg dry matter (DM), respectively. In trial 1, rumen fistulated ewes received oaten hay (hay) ad libitum and 200 g SBM (D1), D1 and 100 g acacia fed with the SBM (D2, mixed strategy) or as D2, but the SBM fed 1 h later than acacia when acacia was consumed completely (D3, sequential strategy). Hay intake, diet digestibility, rumen fermentation parameters (pH, ammonia nitrogen (NH{sub 3}-N) and total volatile fatty acids) and in situ degradation of SBM nitrogen were similar between D1 and D2 (P > 0.05). However, the sequential strategy (D3) resulted in efficient use of N as reflected by the decrease of crude protein digestibility (CPD), plasma urea, NH{sub 3}-N concentration and in situ degradation of SBM nitrogen. In trial 2, four groups each of six Barbarine lambs (initial LW 35.3 {+-} 3.7 kg) received for 90 days: hay ad libitum and 200 g SBM (D1), D1 and 20 g polyethylene glycol (PEG, MW 4000) mixed with SBM (D2), D1 and 100 g acacia with the SBM fed 1 h later when acacia was completely consumed (sequential strategy) (D3) or D3 and 20 g PEG fed with the SBM (D4). Polyethylene glycol was here used to deactivate tannins. Hay intake and DM, organic matter and neutral detergent fibre digestibility were similar among dietary treatment (P > 0.05). However, supplementing lambs with SBM and acacia without PEG (D3) resulted in a significant decrease (P < 0.001) of CPD (0.664 versus 0.597, respectively for D1 and

Las formas del recuerdo. La memoria colectiva

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Jorge Mendoza García

2004-11-01

Full Text Available La memoria tiene una estructura narrativa. Sus contenidos, formas y maneras de expresión así lo ponen de manifiesto. Retomando planteamientos de los fundadores de la perspectiva de la memoria colectiva, Halbwachs, Blondel, Bartlett y Vygotsky, y reflexionando desde los postulados de Bruner, el presente trabajo argumenta que la memoria, incluso la denominada individual, se construye sobre la base de narraciones que constituyen formas de discursos y modos de organizar experiencias, por ejemplo las pasadas, que son culturalmente dotados de significado, y que para ser inteligibles a la persona, grupo, sociedad o colectividad a quien se presentan hay que expresarla en relatos lógicos que muestren la verosimilitud de lo que se está recordando o relatando. Ciertamente, en la vida cotidiana encontramos cantidad de narraciones sobre las experiencias colectivas, encontramos ?narradores de historias?, y como ocurre en la literatura no sólo vale lo que se cuenta sino cómo se cuenta. Así como hay convenciones de ideas sobre la realidad, las hay también para las narrativas: existen modelos narrativos que hacen más verosímil una narración que otra. Tales narraciones dotan de sentido al mundo. Las narraciones, asimismo, devienen marcos sociales de la memoria, como el tiempo y espacio de los que habló Halbwachs, la modalidad narrativa es un marco, una manera de enmarcar la experiencia, y lo que no se estructura de forma narrativa se pierde de la memoria. A esos marcos Bartlett los denomin esquemas, que son delineados por instituciones, costumbres y grupos, que dictan cómo hay que presentar los eventos pasados, es decir, cómo hay que narrarlos, y en tanto relatos, éstos dan forma a las realidades que crean y eso opera para las experiencias pasadas que el grupo guarda.

Vitrubio I, 1 : La enseñanza de la arquitectura y de la geometría en la educación de los adolescentes romanos

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Milagros Moro Ipola

2011-05-01

Full Text Available El Estado Romano nunca consideró que la educación fuera un asunto de su incumbencia. De esa manera, nunca se reguló la formación de los maestros (que se dedicaban a la enseñanza con poca o nula formación, ni se delimitaron claramente las diversas etapas de la enseñanza ni se definió, por ejemplo, el modo en que debían promocionar los alumnos. Sin embargo, y a pesar del desinterés oficial, la formación de niños y adolescentes fue un tema que preocupó, y mucho, a parte de la sociedad romana de...

Envejecer en Cuba: mucho más que un indicador demográfico. Ageing in Cuba: much more that a demographic feature

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María Elena Benítez Pérez

2015-12-01

Full Text Available El envejecimiento demográfico ha transformado el panorama social en la mayoría de las naciones y requerido de numerosas investigaciones, con enfoques diversos, que lo aborden desde la multidimensionalidad de la sociedad como un fenómeno nuevo y complejo que modificará la agenda de las políticas públicas dirigidas a la población adulta mayor. La familia tiene, en este entramado, un papel predominante en la provisión de cuidados a las personas ancianas. Por eso, el objetivo del presente trabajo estará dirigido a demostrar algunas acciones que la sociedad cubana ha desarrollado para fortalecer la capacidad de las familias cuando alguno de sus miembros es un adulto mayor. Su desarrollo parte de la hipótesis general de que la familia sola no podrá responder a las múltiples repercusiones que acompañan el proceso de envejecimiento poblacional y necesitarán de una mayor atención social. No hay dudas de que, a escala social, se viene produciendo en el país una redefinición de la vejez en la conciencia de las personas. Ello no quiere decir que todo esté resuelto, sino que hay una mayor sensibilidad y se trabaja para atender una situación que el país ya tiene y que se agudizará en los próximos años. Las nuevas experiencias implementadas -sin ser suficientes- han demostrado los beneficios -sin grandes costos- producidos en la calidad de vida de los ancianos y de sus familias. The demographic ageing has transformed the social context in the majority of the nations and requires a quite large number of researches, which focuses on diverse issues that assume it since the multidimensional of the society, as a new and complex phenomenon, that will modify the agenda of public politics targeted to adult old population. The family plays, in this network, a predominant role in the provision of support to the old people. That is why; the aim of the present work is to demonstrate the several actions that the Cuban society has developed, to

Variación de la violencia sexual en tiempos de guerra: la violación en la guerra no es inevitable

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Elisabeth Wood

2012-02-01

Full Text Available La violencia sexual varía dramáticamente de una guerra a otra, y, en ocasiones, de un grupo armado a otro dentro de una misma guerra. Sin embargo, en algunos conflictos la violencia sexual perpetrada por determinados grupos armados es especialmente limitada, pese a que estos cometen otro tipo de violencia contra civiles. Ciertos grupos cometen actos de violencia sexual solo contra mujeres, mientras que otros también lo hacen contra hombres. Los científicos sociales están documentando y analizando con una frecuencia cada vez mayor esta variación en los patrones de violencia sexual en tiempos de guerra, particularmente en cuanto a las distintas dimensiones de violencia (su forma, frecuencia, blancos y propósitos, así como en lo referente a los cambios en estos cuatro patrones a través del tiempo. Por tal razón, en este texto, en primer lugar, introduzco conceptos clave, incluyendo estas cuatro dimensiones y el concepto de violencia sexual como práctica (un patrón que no es ordenado pero sí tolerado por los comandantes, y que ocurre tanto en casos en los que hay beneficios estratégicos como en los que no los hay. Después, resumo brevemente las investigaciones recientes que documentan patrones de violencia sexual en tiempos de guerra. Tras mostrar que muchos abordajes presentes en la literatura publicada no dan cuenta de la variación observada –de hecho, muchos predicen más violencia sexual que los trágicos niveles observados–, propongo un marco teórico centrado en las dinámicas internas de los grupos armados. Luego, analizo las condiciones en las cuales los grupos armados no llevan a cabo violaciones, aquellas en las que realizan violaciones estratégicas y aquellas en las que las violaciones se cometen como práctica. A lo largo del artículo, me valgo de hallazgos recientes en la literatura de las ciencias sociales, algunos de ellos todavía no publicados. Concluyo con la implicación de este análisis para la formulaci

Variación de la violencia sexual en tiempos de guerra: la violación en la guerra no es inevitable

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Elisabeth Jean Wood

2012-06-01

Full Text Available La violencia sexual varía dramáticamente de una guerraa otra, y, en ocasiones, de un grupo armado a otrodentro de una misma guerra. Sin embargo, en algunosconflictos la violencia sexual perpetrada por determinadosgrupos armados es especialmente limitada, pese aque estos cometen otro tipo de violencia contra civiles.Ciertos grupos cometen actos de violencia sexual solocontra mujeres, mientras que otros también lo hacen contrahombres. Los científicos sociales están documentandoy analizando con una frecuencia cada vez mayor estavariación en los patrones de violencia sexual en tiemposde guerra, particularmente en cuanto a las distintas dimensionesde violencia (su forma, frecuencia, blancos ypropósitos, así como en lo referente a los cambios en estoscuatro patrones a través del tiempo. Por tal razón, eneste texto, en primer lugar, introduzco conceptos clave, incluyendo estas cuatro dimensiones y el concepto de violencia sexual como práctica (un patrón que no es ordenado pero sí tolerado por los comandantes, y que ocurre tanto en casos en los que hay beneficios estratégicos como en los que no los hay.Después, resumo brevemente las investigaciones recientes que documentan patrones de violencia sexual en tiempos de guerra. Tras mostrar que muchos abordajes presentes en la literatura publicada no dan cuenta de la variación observada –de hecho, muchos predicen más violencia sexual que los trágicos niveles observados–, propongo un marco teórico centrado en las dinámicas internas de los grupos armados.Luego, analizo las condiciones en las cuales los grupos armados no llevan a cabo violaciones, aquellas en las que realizan violaciones estratégicas y aquellas en las que las violaciones se cometen como práctica. A lo largo del artículo, me valgo de hallazgos recientes en la literatura de las ciencias sociales, algunos de ellos todavíano publicados. Concluyo con la implicación de este análisis para la formulación de políticas p

Forage quality on family farms in Croatia: hay quality monitoring over the two winter feeding seasons of dairy cows

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Marina Vranić

2005-10-01

Full Text Available The aim of the applied research project:“Forage evaluation by NIR spectroscopy” was to monitor the nutritive value of grass silage, corn silage and hay on family farms in Croatia over 6-month feeding in each of the two investigation years (from November 2003 to May 2004 and from November 2004 to May 2005. In this paper the nutritive value of hay on 18 dairy farms over the second year of investigation and the comparison of the results with the first year was done. Extension service staff recommended dairy nutrition based on monthly silage analysis by NIRS instrument (Foss, Model 6500. The following parameters were estimated: dry matter (DM, crude protein (CP, neutral detergent fiber (NDF, metabolizable energy (ME, water-soluble carbohydrates (WSC and organic matter digestibility in DM (D-value. The average results show desirable DM content (873.30 g kg-1, high NDF (671.16 g kg-1DM, but low WSC (83.53 g kg-1 DM, CP (61.75 g kg-1 DM, ME (8.75 MJ kg-1 DM and D-value (58.33%. Great variations were observed for CP (40-133 g kg-1 DM, ME (6-11.7 MJ kg-1DM, WSC (21-160 g kg-1 DM and D-value (40-78%. Statistically significant differences (P<0.05 among family farms were recorded for CP (P<0.05 that varied from 40-112.4 g kg-1 DM. No statistically significant differences were observed in the investigated parameters between the first and the second year of the investigation.

Imaging of metal bioaccumulation in Hay-scented fern (Dennstaedtia punctilobula) rhizomes growing on contaminated soils by laser ablation ICP-MS

International Nuclear Information System (INIS)

Koelmel, Jeremy; Amarasiriwardena, Dulasiri

2012-01-01

Understanding Pb removal from the translocation stream is vital to engineering Pb hyperaccumulation in above ground organs, which would enhance the economic feasibility of Pb phytoextraction technologies. We investigated Cu, Pb, Sb and Zn distributions in Hay-scented fern (Dennstaedtia punctilobula) rhizomes on shooting range soils by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), analyzing digested rhizomes, stems, and fronds using ICP-MS. Nutrients Cu and Zn concentrated in fronds while toxic elements Pb and Sb did not, showing potential Pb and Sb sequestration in the rhizome. Frond and rhizome concentration of Pb was 0.17 ± 0.10% and 0.32 ± 0.21% of dry biomass, respectively. The 208 Pb/ 13 C and 121 Sb/ 13 C determined by LA-ICP-MS increased from inner sclerotic cortex to the epidermis, while Pb concentrated in the starchy cortex only in contaminated sites. These results suggest that concentration dependent bioaccumulation in the rhizome outer cortex removes Pb from the vascular transport stream. - Highlights: ► Bioimaged Cu, Pb, Sb, Zn across fern rhizomes from shooting ranges using LA-ICP-MS. ► Pb levels were highest in the outer starchy cortex. ► Pb seemed to displace nutrients Cu and Zn in contaminated site rhizomes. ► [Pb] and [Sb] were correlated across organs suggesting similar transport factors. - Using LA-ICP-MS we determined elemental distributions in Hay-scented fern rhizomes including concentration dependent Pb sequestration patterns in the outer cortex.

Cotidianidade da mulher que tem HIV/AIDS: modo de ser diante da (impossibilidade de amamentar Cotidianidad de la mujer que tiene VIH/SIDA: modo de ser ante la (imposibilidad de amamantar The daily routine of women infected with HIV/AIDS: way of being in the face of the impossibility of breastfeeding

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Stela Maris de Mello Padoin

2010-03-01

Full Text Available Investigação fenomenológica que objetivou compreender a cotidianidade da mulher infectada pelo vírus da imunodeficiência humana, diante da impossibilidade de amamentar. Desenvolveu-se entrevista com 12 mulheres, em um hospital universitário no sul do Brasil. Os depoimentos, analisados pelo método heideggeriano, revelaram que a mulher se mostra como ser-no-mundo e se mantém, predominantemente, na impessoalidade. Desvelou-se o modo de ser da de-cadência, expresso pela ocupação, falatório, curiosidade, ambigüidade e temor, além da inautenticidade do pacto de silêncio e do não dito. O cuidado solícito, mediado pela relação dialógica entre a mãe e o/a filho/a, entre a mulher e o/a profissional, mostrou a possibilidade do movimento da inautenticidade para a autenticidade. Recomenda-se, como estratégia assistencial, o encontro vivido e dialogado, mediado pela escuta, empatia e intersubjetividade, que se desenvolva a partir da compreensão do modo de ser do humano diante das impossibilidades da condição sorológica e na busca de desvelar suas possibilidades.Investigación fenomenológica que tuvo como objetivo comprender la cotidianidad de la mujer infectada por el virus de la inmunodeficiencia humana, ante la imposibilidad de amamantar. Se desarrolló una entrevista con 12 mujeres, en un hospital universitario en el sur de Brasil. Las declaraciones, analizadas por el método heideggeriano, revelaron que la mujer se muestra como ser-en-el-mundo y se mantiene, predominantemente, en la impersonalidad. Se desveló el modo de ser de la decadencia, expreso por la ocupación, por las habladurías, curiosidad, ambigüedad y temor, además de la inautenticidad del pacto de silencio y de lo no dicho. El cuidado solícito, mediado por la relación dialógica entre la madre y el/la hijo/a, entre la mujer y el/la profesional, mostró la posibilidad del movimiento de la inautenticidad para la autenticidad. Se recomienda, como estrategia

Valor nutritivo do capim-elefante (Penninsetum purpureum, Schum, do feno de alfafa (Medicago sativa, L. e do feno de capim coast-cross (Cynodon dactylon (L. Pers. para eqüinos Nutritive value of elephant grass (Penninsetum purpureum, Schum, alfalfa hay (Medicago sativa, L. and coast-cross grass hay (Cynodon dactylon (L. Pers. for horses

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Maria Izabel Vieira de Almeida

1999-08-01

Full Text Available O objetivo deste trabalho foi avaliar o consumo e a digestibilidade aparente dos nutrientes nos alimentos volumosos capim-elefante, feno de alfafa e feno de capim coast-cross em eqüinos adultos. Dezoito éguas adultas da raça Mangalarga Marchador foram distribuídas em delineamento experimental inteiramente casualizado, com três tratamentos, que consistiram em dietas contendo os seguintes alimentos volumosos: T1 - capim-elefante, T2 - feno de alfafa e T3 - feno de capim coast-cross. Os animais foram alimentados ad libitum, duas vezes ao dia. O período experimental constituiu de uma fase de oito dias para adaptação às dietas e cinco dias para a coleta total das fezes. Não houve diferenças no consumo diário de matéria seca (MS das forragens, sendo observados valores médios de 6,27 kg MS, 68,41 g MS/kg0,75 ou 1,51%PV. Os coeficientes médios de digestibilidade aparente do capim-elefante e dos fenos de alfafa e capim coast-cross foram de 43,10; 55,20; e 49,80% para a MS; 41,60; 53,40; e 47,90% para a energia bruta; 24,60; 71,20; e 56,10% para a proteína bruta; e 40,60; 35,50; e 63,30% para a fibra em detergente neutro.The objective of this work was to evaluate the intake and apparent digestibility of nutrients of elephant grass forages, alfalfa and coast-cross grass hays in adult horses. Eighteen adult Mangalarga Marchador mares were allotted to a completely randomized design with three treatments that consisted on diets with the following forages: T1 - elephant grass, T2 - alfalfa hay, T3 - coast-cross grass hay. The animals were ad libitum fed twice a day. The experimental period was constituted by a phase of eight days for diet adaptation and a phase of five days for total collection of feces. There were no differences of forage dry matter intake, with average values of 6.27 kg DM, 68.41 g DM/kg0,75 or 1.51% LW. The average coefficients of apparent digestibility of elephant grass and alfalfa and coast-cross grass hays were 43.10, 55

PERCEPÇÃO DE CIDADÃOS DE UMA CIDADE DE MÉDIO PORTE EM RELAÇÃO AO USO DA BICICLETA COMO MODO DE TRANSPORTE

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Mariana Grade Ricieri

2017-03-01

Full Text Available RESUMO: As cidades de porte médio no Brasil têm ocupado posição de destaque nos últimos anos. Porém, estas cidades têm seguido o mesmo caminho das cidades brasileiras mais populosas e negligenciado aspectos que garantam à manutenção das condições que favorecem investimentos públicos e principalmente privados. Em relação aos sistemas de transporte e logística, cada vez mais as cidades de porte médio têm se tornado dependente do uso do automóvel e evitado políticas de incentivo à mobilidade urbana sustentável. Desta forma, entender a percepção dos usuários dos sistemas de transporte urbano é fundamental para traçar medidas de incentivo para modos alternativos de viagens urbanas. O objetivo deste estudo é apresentar uma análise da percepção dos usuários quanto aos modos de deslocamento urbano, principalmente a bicicleta e medidas específicas de incentivo ao uso deste modo não motorizado. A pesquisa foi realizada por meio de entrevistas com um questionário impresso. As respostas possibilitaram obter a opinião sobre o uso da bicicleta como modo de transporte, caracterizar o perfil socioeconômico dos entrevistados e simular um cenário em relação ao uso da bicicleta. Para o caso específico deste estudo ficou evidente que os entrevistados são favoráveis ao uso da bicicleta e uma parcela está disposta a usar o ciclismo desde que sejam implantadas medidas de incentivo. ABSTRACT: The medium-sized cities in Brazil have occupied a prominent position in the last years. However, these cities have followed the same path of the most populous Brazilian cities and have neglected aspects that guarantee the maintenance of the conditions that favor public and private investments. Regarding transport and logistics systems, more and more medium-sized cities have become dependent on the use of the car and have avoided policies to encourage sustainable urban mobility. In this way, understanding the users' perception of urban

Los lugares incómodos (o las deudas-desafíos de las carreras de comunicación

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María Cristina Mata

2016-03-01

Full Text Available La apuesta de algunas universidades públicas argentinas conmovidas por las nuevas situaciones político-tecnológicas, puede ser aleccionadora: las carreras de comunicación se trasmutan en carreras de medios audiovisuales o de producción de contenidos digitales; las licenciaturas y especializaciones genéricas dan cabida a la comunicación popular y comunitaria; comienzan a desarrollarse diplomaturas en medios digitales y reconversión cultural. Pareciera, de ese modo, asistirse a la emergencia de espacios que comienzan a aceptar la incomodidad. Habrá que seguir paso a paso esos emergentes. Mirar de cerca sus derivas para constatar de qué manera la incomodidad da pie a la innovación cuestionadora o, por el contrario, se resuelve en ajustes que permiten, otra vez, acomodarse a lo mullido.

Consumo e digestibilidades aparentes total e parciais do feno de Stylosanthes guianensis Intake, total and partial apparent digestibilities of Stylosanthes guianensis hay

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M.M. Ladeira

2001-04-01

Full Text Available Utilizaram-se sete carneiros, sem raça definida, fistulados no rúmen e duodeno, para avaliar o consumo e as digestibilidades aparentes totais e parciais de matéria seca (MS, matéria orgânica (MO, proteína bruta (PB, extrato etéreo (EE, fibra em detergente neutro (FDN, fibra em detergente ácido (FDA, celulose (CEL e hemicelulose (HCEL do feno de Stylosanthes guianensis. Os animais receberam apenas feno de S. guianensis mais sal mineral como componentes da dieta. O fornecimento do feno foi ad libitum, sendo a quantidade calculada para permitir sobras de 20%. Utilizou-se óxido crômico como indicador para estimar a produção de fezes e o fluxo de digesta no duodeno. Os consumos de MS e MO do S. guianensis foram 67,71 e 64,70 g/kg0,75, respectivamente. As digestibilidades aparentes totais da MS, MO, PB, FDN e FDA foram 49,2, 51,3, 61,2, 42,0 e 42,7%, respectivamente. As digestibilidades aparentes ruminais da MS, MO, FDN e FDA foram 75,8, 84,7, 89,6 e 90,6%, respectivamente, em função do total digerido. A digestibilidade ruminal da PB foi 21,3%. Concluiu-se que o feno de S. guianensis, colhido em estádio de maturidade avançada, pode ser indicado para ruminantes, pois seu consumo é capaz de atender às necessidades energéticas de mantença já que seus valores, apesar de sua digestibilidade não ser elevada, são ligeiramente maiores do que os de outras forrageiras tropicais.Seven rumen and duodenal cannulated lambs were used to evaluate the intake and the total and the partial apparent digestibilities of dry matter (DM, organic matter (OM, crude protein (CP, ether extract (EE, neutral detergent fiber (NDF, acid detergent fiber (ADF, cellulose (CEL and hemicellulose (HCEL of the Stylosanthes guianensis hay. The diet was composed by the hay of S. guianensis plus mineral salt. The hay was offered ad libitum with the refusals estimated for being 20%. Chromium oxide was used as an external marker, to estimate fecal production and digesta

PREFERÊNCIA SENSORIAL DE COMPOTA E DOCE DE FRUTA EM CALDA ELABORADOS COM FIGO EM FUNÇÃO DO MODO DE PREPARO

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Caetano, Priscilla Kárim; FCA/UNESP; Mendonça, Veridiana Zoocoler de; FCA/UNESP; Daiuto, Érica Regina; Faculdade de Ciências Agronômicas (FCA/UNESP-Botucatu); Vieites, Rogério Lopes; FCA/UNESP

2015-01-01

Objetivou-se nesta pesquisa verificar a preferência sensorial entre compota e doce em calda de figo calda em função do modo de preparo. Foram realizados três tratamentos: compota de figo - tratamento térmico por 20 minutos, sem cozimento do fruto na calda (T1), doce de figo em calda - tratamento térmico dos frutos por 10 minutos e cozimento dos frutos na calda por 10 minutos (T2) e doce de figo em calda - sem tratamento térmico e cozimento do fruto na calda por 20 minutos (T3).  A calda utili...

Performance of Dairy Goats Fed Rhodes Grass Hay and Supplemented with Leucaena or Gliricidia-Based Concentrates

International Nuclear Information System (INIS)

Ondiek, J.O.; Tuitoek, J.K.; Abdulrazak, S.A.

1999-01-01

An experiment was conducted to evaluate the performance of dairy goats supplemented with fodder based diets. Six lactating does of Saanen, Toggenburg and Saanen X Toggenburg breed types weighing 46 + or - 7.1 at late stage of lactation were allocated to three dietary treatments in a double 3*3 Latin square design to examine the value of leucaena and gliricidia forages as nitrogen sources in supplementing Rhodes grass hay. Three supplements: Leucaena-based (L), gliricidia-based (G) or commercial concentrate (C) were used. Voluntary feed intake, milk yield, milk composition and live weight changes were measured. Total dry matter intake (DMI) was significantly higher in group G than C (1385 vs 1331 g day -1 ). Hay DMI was higher in G (835 g d -1 than L or C (789, 782 g day -1 , respectively). Diets had no effect on milk yield, crude protein or butterfat content. Total solid was higher in L than C while that of G was intermediate (15.7, 14.7, 13.7%). Weight changes were least affected although resulted in positive gain (11 g day -1 ) while the others lost (-13,-19 g day -, for L and C respectively). In the digestibility trial 6 female goats weighing 22.3 kg (sd 1.1), were allocated to the three treatments in a completely randomised block design where each goat received a different supplement in each of two periods. Thee were no differences in nutrient digestibility except for DM, which was in C compared to the other treatments (615, 622, 720 g-kg for L, G and C, respectively). It si concluded that fodder based supplement compared well with the commercial concentrate in supporting milk yield and body weight gain of dairy goats. Therefore, locally available tree fodders can be incorporated in supplement diets and utilized without any detrimental effects to substitute the expensive concentrates to improve the performance of dairy goats

Consumo e digestibilidade de feno de baixa qualidade suplementado com nitrogênio não protéico em bovinos Intake and digestibility of low-quality hay with nonprotein nitrogen supplementation in cattle

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Giovanni Mateus Mallmann

2006-02-01

Full Text Available O objetivo deste trabalho foi avaliar o efeito de níveis de inclusão de nitrogênio não protéico, em suplementos fornecidos a tourinhos Hereford, com 17 meses e peso médio de 220 kg, alimentados com feno de tifton (Cynodon dactylon ad libitum. Os tratamentos avaliados foram: feno + suplemento sem uréia; feno + suplemento com 0,28 g de uréia kg-1 PV0,75; feno + suplemento com 0,55 g de uréia kg-1 PV0,75; feno + suplemento com 0,83 g de uréia kg-1 PV0,75 e feno + suplemento com 1,11 g de uréia kg-1 PV0,75. O feno apresentou, na média, 3,86% de proteína bruta e 84,66% de fibra em detergente neutro. Não se constatou efeito da suplementação sobre a digestibilidade da matéria orgânica, matéria orgânica do feno, fibra em detergente neutro, celulose e hemicelulose; o consumo total desses itens respondeu quadraticamente à suplementação com níveis crescentes de nitrogênio não protéico. A suplementação não afetou a excreção fecal metabólica de matéria orgânica, o que sugere aumento na taxa de passagem (variação no consumo e na taxa de digestão (digestibilidade constante. O consumo de matéria orgânica digestível apresentou comportamento quadrático com aumento dos níveis de uréia na dieta. Quando o nível de proteína degradável no rúmen foi equivalente a 8,1% da matéria orgânica digestível, a relação de consumo entre esses componentes foi otimizada.The objective of this work was to evaluate the effect of nonprotein nitrogen supplementation levels on the digestibility of low-quality hay (Cynodon dactylon, which was offered ad libitum to Hereford bulls aging 17 months and weighing 220 kg. The evaluated treatments were: hay + no urea supplement; hay + supplement with 0.28 g urea kg- 1 BW0.75; hay + supplement with 0.55 g urea kg-1 BW0.75; hay + supplement with 0.83 g urea kg- 1 BW0.75 and hay + supplement with 1.11 g urea kg- 1 BW0.75. Hay composition presented 3.86% of crude protein and 84.66% of neutral

Modos de decir la noticia en la prensa gráfica del norte de Argentina

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César Arrueta Parraga

2013-11-01

Full Text Available El objetivo de este trabajo es analizar los modos de decir la noticia de tres diarios del norte de Argentina (Pregón, El Tribuno de Salta y El Liberal, considerando un primer nivel estilístico y un segundo nivel netamente gráfico-espacial. A partir de ello, se propone una reflexión crítica sobre los mecanismos y las modalidades aplicadas sobre la superficie redaccional, identificando necesidades y desafíos pendientes en el contexto de las demandas del mundo digital y la transformación de los hábitos de consumo de medios. Como principales resultados se observa un predominio textual clásico/conservador sobre formas visuales innovadoras; una preponderancia gráfica de la pauta publicitaria y las prioridades editoriales sobre los marcos noticiosos; una disociación estética entre las demandas del público y la propuesta del medio; un complejo y tenso proceso de transición/ negociación entre el formato clásico papel y las propuestas online de cada uno de los pe-riódicos estudiados.

Incômodo causado pelo ruído urbano à população de Curitiba, PR

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Paulo Henrique Trombetta Zannin

2002-08-01

Full Text Available Descreve-se a reação da população de Curitiba, PR -- cidade com aproximadamente 1,6 milhões de habitantes --, ao ruído ambiental . Os dados foram coletados por meio de questionários distribuídos aleatoriamente a moradores da cidade. Dos 1.000 questionários distribuídos, 860 (86% foram avaliados. As principais fontes de ruído causadoras de incômodo identificadas foram o tráfego de veículos (73% e os vizinhos (38%, sendo que estes foram classificados como a principal fonte de desconforto. Todos os respondentes apontaram pelo menos um dos seguintes itens como geradores de ruído: vizinhos, animais, sirenes, construção civil, templos religiosos, casas noturnas, brinquedos e aparelhos domésticos. As principais reações ao ruído foram: irritabilidade (58%, baixa concentração (42%, insônia (20% e dores de cabeça (20%.

Rosario Camacho y la arquitectura malagueña del XIX.

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Francisco García Gómez

2013-01-01

Full Text Available Hay experiencias que, como alumno, nunca se olvidan, de igual modo que hay profesores que dejan una huella más profunda que otros. En mi caso, siempre recordaré aquel día de 1990 en que Rosario Camacho, en la asignatura Arte español de la Licenciatura de Geografía e Historia, nos llevó al grupo de cuarto curso de paseo por la Málaga del siglo XIX. Nunca hasta entonces ese importante pasado decimonónico de la ciudad se me había aparecido tan esclarecedor como cuando nos iba desentrañando casas, iglesias y edificios públicos con el conocimiento y la profundidad que siempre han caracterizado a la gran maestra del Departamento de Arte. Si bien la principal especialidad de Rosario Camacho ha sido la arquitectura y la cultura del barroco en general, la versatilidad y la apertura de miras han sido dos de los rasgos definitorios de su labor investigadora. No hay más que ver esta sección del Boletín de Arte para darse cuenta de tal diversidad de intereses. Y de entre estos temas «tangenciales» a los que siempre ha atendido más allá de lo barroco, se encuentran el urbanismo y la arquitectura de la Málaga del XIX.

Responsabilidad social de la empresa: ¿Ética, marketing o Derecho?

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Oscar Ermida Uriarte

2010-12-01

Full Text Available Desde el punto de vista jurídico, se ha criticado duramente el uso de la expresión «responsabilidad» en esta materia. Lo que hacen las empresas bajo el rótulo de «responsabilidad social» no sería responsabilidad sino filantropía o acción social, en tanto se defiende su voluntariedad y no exigibilidad por terceros, especialmente por los beneficiarios de esa acción. Parece cierto que ningún jurista serio hablaría de una «responsabilidad voluntaria» Sin lugar a dudas, en la responsabilidad social de la empresa hay mucho de marketing, de campaña de imagen, de publicidad y de promoción.

Libertades restringidas: el aborto y el ocaso de la libertad de decisión en Estados Unidos

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Elizabeth Maier

2016-01-01

Full Text Available En este artículo se examinan los hechos recientes sobre el creciente conflicto cultural que hay en Estados Unidos en torno al aborto, que se sitúa en el contexto histórico es- tructural contemporáneo de transición entre dos modelos capitalistas: la modernidad industrial y el posindustrialismo neoliberal globalizado. Por tanto, se exploran sus antece- dentes legales y, de manera breve, se analizan los discursos y los actores en disputa. También se revisa la nueva legis- lación, que en muchos estados ha restringido el acceso al aborto despenalizado para las mujeres de menos ingresos y se evalúan, en general, las implicaciones que esto tiene en la vida de ellas.

La meditación “mindfulness” o de atención plena como tratamiento de la preocupación crónica: Evidencia psicofisiológica

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Luis Carlos Delgado

2010-10-01

Full Text Available Las técnicas de meditación son fruto de una antiquísima tradición que sólo recientemente se ha sometido al escrutinio científico. Aunque actualmente hay consenso sobre su capacidad de inducir cambios en el funcionamiento del sistema nervioso y sobre su efectividad como terapia para ciertos tipos de trastornos psicológicos, aún nos queda mucho que descubrir. Describimos aquí un estudio reciente de nuestro laboratorio donde se valora la capacidad de una técnica de meditación conocida como “mindfulness”, o atención plena, para reducir la preocupación crónica, y se avanza en la comprensión de sus mecanismospsicofisiológicos subyacentes.

Café: Bonanza o recuperación de precios?

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Mariano Arango

1995-07-01

Full Text Available Después del rompimiento del Pacto Mundial en julio de 1989. La situación para la caficultura colombiana fue mucho más difícil de lo previsto, con producciones de más de 16 millones de sacos y exportaciones de ese orden; a consecuencia, las prácticas culturales de la caficultura se redujeron drásticamente. El Pacto de Productores y las heladas del Brasil de junio a julio de 1994 permitieron recuperar los precios internacionales, pero el ingreso real permaneció más bajo que a fines de 1991, no hay bonanza para los caficultores, sino para la Federación de Cafeteros, El Fondo del café y para los comerciantes privados.

La escuela suiza del diseño gráfico, orígenes e influencias

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Juan Jesús Arrausi

2016-01-01

Full Text Available Los centros de formación profesional suizos aportaron educación artística y teórica en el entorno del arte y de la actividad proyectual. La formación en diseño se ha impartido en escuelas de formación profesional, que hasta muy recientemente no han tenido el rango universitario. La tradición docente es un componente que ha permitido a Suiza llegar a unos estándares académicos muy elevados. En parte, gracias a un cuerpo docente sólido, arraigado en principios básicos contrastados por el juicio, los errores y las correcciones de muchos años. Esta experientia docendi hay que buscarla en su herramienta principal: el dibujo.

Control activo de vibraciones en estructuras tipo edificio sometidas a sismos utilizando múltiple retroalimentación positiva de la posición y modos deslizantes

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Josué Enríquez-Zárate

2014-01-01

Full Text Available Este trabajo considera el análisis estructural y dinámico de un a estructura tipo edificio de tres pisos con un absorbedor de v ibraciones pasivo/activo. La base de la estructura se perturba con un gene rador de vibraciones, proporcionando fuerzas de excitación y ru ido emulando transporte terrestre, trenes subterráneos y sismos, c omunes en la Ciudad de México. Se considera un registro sísmico real de magnitud 8.1Mw, conteniendo algunas frecuencias resonantes de l a estructura. La estructura mecánica se modela con la metodolog ía de Euler-Lagrange y se valida con técnicas de análisis modal exper imental. El esquema de control activo se diseña para atenuar la respuesta vibratoria del sistema, ocasionada por las fuerzas armónicas qu e actúan en la base, empleando múltiple retroalimentación posit iva de la posición y control por modos deslizantes para mejorar la robust ez del sistema en lazo cerrado y atenuar tres modos de vibració n. Resultados en simulación y experimentales describen el desempeñ o del sistema completo.

Consciência situacional, tomada de decisão e modos de controle cognitivo em ambientes complexos Situation awareness, decision making, and cognitive control in complex environments

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Éder Henriqson

2009-01-01

Full Text Available O presente trabalho tem como objetivo analisar a consciência situacional, os processos de tomada de decisão naturalística e os modos de controle cognitivo utilizados por pilotos de aeronaves em um experimento em simulador de voo. Dessa forma, diferentes situações foram propostas durante a simulação objetivando o estudo da consciência situacional e tomada de decisão dos tripulantes. As ações dos participantes foram investigadas e classificadas de acordo com o modelo de controle cognitivo proposto. Os resultados sugerem que os fatores de complexidade contextual afetam a gestão da dificuldade, influenciando a consciência situacional, a tomada de decisão e os modos de controle cognitivo dos pilotos.This work aims to analyze situation awareness, natural decision-making processes and cognitive control modes used by airplane pilots in a flight simulator experiment. In this way, different situations during flight simulation were considered in order to study the crew's situation awareness and natural decision-making. The participants' actions were investigated and classified according to the cognitive control model proposed. Results suggest that context complexity factors affect difficulty management, influencing situation awareness, decision-making and pilots' cognitive control modes.

Falácias acadêmicas, 15: o modo repetitivo de produção do marxismo vulgar no Brasil

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Paulo Roberto Almeida

2011-07-01

Full Text Available Descrição do fenômeno da degeneração do marxismo em universidades brasileiras, mediante o acúmulo de pastiches de má qualidade da obra original, o que resulta na emergência de um “modo repetitivo de produção”, consistindo na assemblagem de slogans derivados da fonte inicial, mas sem qualquer conexão com a realidade do mundo corrente. Exposição das falácias mais comuns nesse tipo de vulgarização, que constitui uma contrafação do verdadeiro marxismo.

As doenças e os doentes: a apreensão das práticas médicas no modo de produção capitalista Las enfermedades y los enfermos: la aprehensión de las prácticas médicas en el modo de producción capitalista The diseases and the sick: the understanding of medical practices in capitalism

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Cleuza P. Ornellas

1999-01-01

Full Text Available Este artigo discute as doenças e os doentes e o processo através do qual o cuidar dos doentes e o tratar das doenças tornou-se objeto das práticas médicas. Baseado nas contribuições de Donnangelo & Pereira e Gonçalves discute o processo que explica a apropriação das práticas médicas no modo de produção capitalista.Este artículo discute las enfermedades y los enfermos y el processo hacia el cual el cuidar de los enfermos y el tratar las enfermedades se convirtieron en objeto de las prácticas médicas. Basado en las contribuiciones de Donnagelo e Gonçalves discute el proceso que explica la apropriación de las prácticas médicas en el modo de producción capitalista.This article discusses the diseases and the sick as well as how the process from which to take care of them became object of medical practices. Based on Donnagelo and Gonçalves contributions, the author discusses the process that explains medical practices appropriation by the capitalism.

Effect of feeding alfalfa hay or Tifton 85 bermudagrass haylage with or without a cellulase enzyme on performance of Holstein cows.

Science.gov (United States)

Bernard, J K; Castro, J J; Mullis, N A; Adesogan, A T; West, J W; Morantes, G

2010-11-01

Forty-four lactating Holstein cows (173±30 DIM, 42.5±6.8 kg of milk, 4.03±0.69% fat, 674±78 kg of body weight) were used in an 8-wk, completely randomized trial with a 2 × 2 factorial arrangement of treatments to determine the effect of forage source and supplemental cellulase enzyme on performance. Treatments included 2 forage combinations (corn silage plus 12.2% dry matter, DM, from either alfalfa hay or Tifton 85 bermudagrass haylage) with or without a commercial cellulase enzyme applied to the total mixed ration at the rate of 4 g/head per day (Promote N.E.T.-L, Cargill Animal Nutrition, Minneapolis, MN). Experimental diets were formulated to provide similar concentrations of protein (16.5% of DM), energy (1.63 Mcal of net energy for lactation/kg of DM), and neutral detergent fiber (41.7% of DM) and were fed once daily as a total mixed ration behind Calan doors for ad libitum intake. The cellulase enzyme provided 1,200 cellulase units of activity/g of product and was applied to the total mixed ration and allowed to mix for 5min before feeding. Before beginning the trial, all cows were trained to use Calan (American Calan, Northwood, NH) doors and then fed the alfalfa hay-based diet for 2 wk. Data collected during wk 2 were used as a covariate in the statistical analysis. At the beginning of the 6-wk experimental period, cows were assigned randomly to 1 of the 4 experimental diets. No interactions were observed between forage and enzyme for any measures. Daily DM intake; milk yield; concentrations of milk fat, true protein, lactose, and solids not fat; energy-corrected milk yield; and dairy efficiency were not different among alfalfa or Tifton 85 bermudagrass rations with or without cellulase enzyme supplementation. The results of this trial indicate that Tifton 85 bermudagrass haylage can replace alfalfa hay in diets fed to high-producing, lactating dairy cows without depressing DM intake or milk yield when rations are balanced for NDF. Although

Lead deposit on vegetation growing along highways traveled by automobiles. Milk cow feeding experiments with hay contaminated with lead

Energy Technology Data Exchange (ETDEWEB)

Bovay, E

1971-03-01

Measurements conducted in Switzerland from 1967 through 1970 revealed that vegetation growing along highways contained lead in concentrations in excess of 100 ppm. Although the amounts of lead in vegetation rapidly decrease with distance from the highway, lead can be detected up to a distance of about 100 M. The rate and extent of dispersion of lead particles depended on seasonal orographic and/or meteorological conditions. Lead retention by different plant organs is governed by their nature and composition. Plants with large hairy leaves or leaves with a rough surface accumulate much more lead than plants with smooth leaves. From 35-65% of the plant tissue lead content can be removed by thorough washing, an indication that the contamination consists for the most part in a surface deposit. But plant roots growing in lead-contaminated soil absorb the element, even if present in a relatively insoluble form. In spite of these observations, no symptoms of plant disease or a decrease in crop yield has been noted. High tightly growing hedges of perennials (pine or fir) markedly reduce the dispersion of exhaust gases. Feeding trials with mild cows involving hay harvested along highways demonstrated that a high percentage of the lead ingested with the fodder was eliminated. Some organs like bones, kidneys, and the liver accumulated large quantities of lead (up to 21-fold quantities). After four weeks on the contaminated hay, the lead content in milk quadrupled. The cows ingested 1300 mg lead daily with contaminated fodder containing 99 ppm Pb. Toxic symptoms in cattle and horses do not appear until an ingestion level of about 2200 mg Pb/day is reached. 36 references.

El alzamiento de Pascuas de 1916

OpenAIRE

Cruset, María Eugenia

2006-01-01

Hay algunos hechos en la historia que son particularmente gráficos. Si uno piensa en la caida del Muro de Berlín en 1989, en seguida le llega a la mente el fin de los 70 años del experimento socialista soviético. Del mismo modo, si recordamos la Revuelta de Pascua de 1916 podemos visualizar el fin de siglos de dominio inglés sobre Irlanda. Y, aunque estrictamente hablando, esto recién será el comienzo del fin, su carácter simbólico y su utilización como ícono nacionalista, nos permitirá hacer...

Palimpsestos: la literatura en el contextos escolar

OpenAIRE

Jurado Valencia, Fabio

2012-01-01

Como réplica a los modos unilaterales de abordar la lectura del texto literario, se esboza una propuesta de trabajo que pone el énfasis en el diálogo entre los textos más allá de la periodización, en tanto recurso prevaleciente en la escuela. El propósito del diálogo textual sólo es posible porque hay una orientación de la lectura hacia la interpretación y hacia la consideración de cómo los textos literarios devienen siempre de otros textos. En general, se trata de ofrecer unas señales para c...

Edificación industrial

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Hidalgo Fernández-Cano, Amalio

1960-01-01

Full Text Available La composición arquitectónica de esta importante rama de la edificación ha alcanzado en estos últimos años gran importancia, tras haber constituido una de las principales causas del nacimiento de la nueva arquitectura. La esclavitud que impone un proceso de fabricación al proyectista del edificio es tal, que no hay modo de salvar las imposiciones funcionales. Y ese funcionalismo a ultranza, junto a la ausencia de falsos elementos decorativos superfinos, han dado por resultado la realización de una serie de ejemplos de edificación industrial de indudable valor arquitectónico.

FaceGUK: la construcción social de la identidad vasca analizada desde la etnografía digital

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Koldo Díaz Bizkarguenaga

2015-07-01

Full Text Available El eje principal de esta investigación es la identidad nacional de una sociedad vasca que se ha transformado en los últimos años, en concreto, la pregunta de estudio con la cual hay que abordarla y el modo en el que se construye socialmente. Para ello, analizando las redes sociales, y en particular Facebook, mediante la (auto etnografía digital, además de responder las anteriores preguntas, se ha estudiado el tipo de comunidad vasca que se crea con Internet, los límites territoriales de la nación y los agentes que influyen en estos procesos.

Prescindir de creer en la posmodernidad

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Marta Cecilia Castaño Sánchez

2013-06-01

Full Text Available El presente ensayo trata de reflexionar sobre la experiencia religiosa, o de lo sagrado, que se vive en la posmodernidad y parte de las creencias que se manifiestan en lo individual y colectivo de las vivencias y discursos comunes en la cotidianidad. Se habla desde lo individual puesto que en la posmodernidad es frecuente que cada quien afirme su propia fe en Dios, frente a lo cual hay que guardar la tolerancia necesaria en una sociedad multicultural, que pide el respeto y la aceptación por quienes ven las cosas de modo diverso al propio y de las mayorías.

Robust control decentralized by sliding ways of electrical of power multi-machines systems; Control robusto descentralizado por modos deslizantes de sistemas electricos de potencia multimaquinas

Energy Technology Data Exchange (ETDEWEB)

Huerta Avila, Hector

2008-09-15

electrica. El controlador debe ser robusto ante variaciones parametricas que se pueden presentar por incertidumbre en los modelos, envejecimiento de los componentes de los generadores y algunas otras causas fisicas. Otro factor a considerar es que los modelos de sistemas multimaquinas son de alto orden, por lo cual se dificulta el diseno de controladores y la implementacion de los mismos en el sistema. Entonces, es conveniente disenar controles descentralizados que puede facilitar la tarea de diseno e implementacion de los mismos. Este trabajo propone tres nuevas tecnicas robustas para sistemas no lineales. La primera esta basada en la metodologia de control por bloques y modos deslizantes integrales; esta combinacion permite aplicar modos deslizantes integrales en cada bloque del sistema, rechazando las perturbaciones existentes en cada bloque. La segunda tecnica propone el diseno de una variedad deslizante a partir del modelo hamiltoniano de sistemas no lineales, misma que sera utilizada para un control por modos deslizantes. La tercera tecnica propone la aplicacion de modos deslizantes en cada bloque de un sistema no lineal controlable por bloques, mediante la utilizacion de la funcion de Lyapunov de ese bloque. Posteriormente se disenan cuatro esquemas de control descentralizado para sistemas electricos de potencia multimaquinas. Los cuatro esquemas propuestos son robustos ante las perturbaciones mencionadas. Ademas, estos controladores se pueden implementar en cualquier sistema electrico de potencia con n generadores, m lineas y k cargas.

Modos de produccion cientifica: Culturas y metodologias de investigacion en la Universidad de Cadiz

Science.gov (United States)

Gonzalez Ramos, Ana M.

2004-12-01

Este trabajo de investigacion supone un modelo teorico de caracter aplicado, que proporciona la oportunidad de evaluar la produccion cientifica de los investigadores. Se encuadra dentro de la tradiccion de la estadistica aplicada y la sociologia del conocimiento. Atiende especialmente a dos conjuntos de temas de interes, por una parte, las caracteristicas principales que determinan el nivel y tipo de produccion academica producida por las unidades de investigacion y por los propios investigadores; por otra, la utilizacion que se hace de los metodos y tecnicas de investigacion puesto que de ello tambien depende el modo de produccion cientifica. Los puntos novedosos de esta tesis son: la medicion cuantitativa del objeto de estudio, la suma de los productos y las condiciones externas a la produccion del conocimiento mas otros elementos internos como las caracteristicas de los investigadores y la metodologia utilizada para desarrollar sus trabajos; y, finalmente, el uso de las nuevas tecnologias. El aprovechamiento de los recursos estadisticos y las fuentes de informacion secundarias se complementan con el diseno propio de una encuesta donde se implementa las caracteristicas descritas en un capitulo anterior sobre los metodos cientificos mas idoneos descritos en los principales manuales y articulos cientificos desde distintas disciplinas de conocimiento. Dicha encuesta ha sido desarrollada como un programa propio y en base a los mas innovadores usos de la tecnologia en la metodologia de encuestas.

Comparison of acid-detergent lignin, alkaline-peroxide lignin, and acid-detergent insoluble ash as internal markers for predicting fecal output and digestibility by cattle offered bermudagrass hays of varying nutrient composition.

Science.gov (United States)

Kanani, Juvenal; Philipp, Dirk; Coffey, Kenneth P; Kegley, Elizabeth B; West, Charles P; Gadberry, Shane; Jennings, John; Young, Ashley N; Rhein, Robert T

2014-01-13

The potential for acid-detergent insoluble ash (ADIA), alkaline-peroxide lignin (APL), and acid-detergent lignin (ADL) to predict fecal output (FO) and dry matter digestibility (DMD) by cattle offered bermudagrass [Cynodon dactylon (L.) Pers.] hays of different qualities was evaluated. Eight ruminally cannulated cows (594 ± 35.5 kg) were allocated randomly to 4 hay diets: low (L), medium low (ML), medium high (MH), and high (H) crude protein (CP) concentration (79, 111, 131, and 164 g CP/kg on a DM basis, respectively). Diets were offered in 3 periods with 2 diet replicates per period and were rotated across cows between periods. Cows were individually fed 20 g DM/kg of body weight in equal feedings at 08:00 and 16:00 h for a 10-d adaptation followed by a 5-d total fecal collection. Actual DM intake (DMI), DMD, and FO were determined based on hay offered, ort, and feces excreted. These components were then analyzed for ADL, APL, and ADIA concentration to determine marker recovery and marker-based estimates of FO and DMD. Forage DMI was affected by diet (P = 0.02), and DMI from MH and H was greater (P forages. Results from such studies may be used to develop improved equations to predict energy values of forages based on the relationship of dietary components to digestibility across a wide range of forages.

El constitucionalismo según John Rawls

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Roberto Gargarella

2005-01-01

Full Text Available El término “democracia” se encuentra completamente ausente del famoso libro de John Rawls, Teoría de la justicia. En Liberalismo político, en cambio, Rawls discute varios de los muchos temas sobre los que el concepto de democracia nos invita a reflexionar. En este escrito concentro mi atención en una de esas discusiones: la tensión entre constitucionalismo y democracia. Más específicamente, procuro examinar de qué modo Rawls trata de afirmar el doble compromiso que toda constitución quiere honrar, esto es, el compromiso con el ideal de la autonomía individual, y el compromiso con el ideal del auto-gobierno colectivo.

MODO DE VIDA CAMPONESA: MUDANÇAS E PERMANÊNCIAS NA COMUNIDADE BOM JESUS NA ESTRADA DA EMADE –TEFÉ-AM/Mode of camponesa life: changes and permanences in the community Bom Jesus on the road of EMADE -Tefé/AM

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Nágila dos Santos Situba

2018-05-01

Full Text Available Esta pesquisa teve como objetivo analisar as mudanças e permanências dos modos de vida camponesa da comunidade Bom Jesus, situada na estrada da Emade, município de Tefé-Amazonas. Neste sentido, as transformações e permanências ocorridas nesta comunidade estão relacionadas à abertura da estrada da Emade (1997 e a instalação da Empresa Amazonense de Dendê na década de 1980. Além disto, outro elemento agregado a essas mudanças é o processo de urbanização que se expandiu em todo o globo terrestre, trazendo consigo transformações nos modos de vida, no cotidiano e na relação cidade e comunidade. Os resultados obtidos apontam mudanças no que se refere aos modos de vida, hábitos alimentares e atividades agrícolas que caracterizavam os camponeses. Além disto, outras atividades se inseriram no cotidiano dos camponeses como: extração de madeira, carpintaria, comércio, produção de carvão, servidor público etc.

A influência dos modos de variabilidade climática na temperatura em superfície na Antártica

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Douglas da Silva Lindemann

2015-06-01

Full Text Available Este trabalho analisa a variação sazonal da temperatura do ar à superfície (Tar na Antártica, e sua relação com os modos de variabilidade climática El Niño-Oscilação Sul (ENOS e Oscilação Antártica (OA. Os resultados indicam que para os 4 períodos sazonais as Tar nas estações localizadas no setor oriental da Antártica apresentaram significativas correlações negativas (nível de significância de 1% na maioria das estações com a OA. Todavia o único período sazonal, em que o setor continental (Amundsen-Scott, Dome C apresentou forte correlação negativa com a OA, foi durante o inverno (significativa a 1%. Correlações positivas foram encontradas (significâncias entre 1% e 5% entre as Tar da Península Antártica e Shetland do Sul com a OA para os períodos de outono, inverno e primavera. Os resultados demonstram a influência que a OA exerce sobre a climatologia da Tar na Antártica. É importante notar um dipolo entre as regiões oriental da Antártica e da Península Antártica, no que concerne as influências da OA. O modo de variabilidade ENOS apresentou correlação negativa significativa com as três estações da Península Antártica somente durante a primavera, enquanto que para a estação Rothera, à oeste da Península, a correlação foi significativa também para o outono e inverno. A correlação entre ENOS e Tar foi positiva e significativa no setor do Mar de Ross durante a primavera, e com o setor oriental da Antártica durante o verão, com nível de significância chegando a 5%.

Supresión de modos de vibración acústicos con un resonador Helmholtz

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Guiguet Andrés

2003-01-01

Full Text Available La inserción de un Resonador Helmholtz (RH en las paredes laterales de un tubo, con ondas estacionarias en su interior, logra suprimir uno o más de sus modos resonantes si se elige adecuadamente la frecuencia del resonador. El RH puede actuar también como filtro de ondas propagantes.' En este caso, el RH atenua las ondas en un rango de frecuencia muy selectivo. En la mayoría de los textos de acústica, solamente se desarrolla la teoría que explica el filtrado de ondas propagantes. Sin embargo, en los laboratorios de física basica, donde se dispone solamente de tubos de Kundt de pequeña longitud, no es simple realizar un arreglo experimental que asegure la presencia de ondas propagantes puras en su interior. La falta de una teoría para ondas estacionarias y las dificultades experimentales que señalamos han producido algunas confusiones en trabajos que tratan sobre el tema. En este artículo se presenta un modelo teórico que describe satisfactoriamente el comportamiento del RH cuando funciona como filtro de ondas estacionarias y se marcan las diferencias con la situación en que opera como filtro de ondas propagantes.

Hacia una racionalidad reproductiva-ambiental. Aportes de los movimientos sociales contra las represas para la desmercantilización del territorio

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Nazaret Castro Buzón

2016-12-01

Full Text Available Para los movimientos que resisten contras las represas en América Latina, así como para otras luchas contra los emprendimientos extractivos, el territorio es mucho más que la garantía de su subsistencia: encarna la posibilidad misma de conservar modos de vida, de ser y hacer, que implican relaciones sociales, costumbres y, en muchos casos, una cosmovisión que se enfrenta a la mercantilización de la naturaleza que propone el sistema hegemónico. Este trabajo parte del análisis de tres movimientos que resisten a proyectos de infraestructura hidroenergética en Chile (Koz Koz, Colombia (Asoquimbo y Argentina (Mesa Provincial No a las Represas. ¿En qué medida estos movimientos sociales proponen una alternativa a la racionalidad instrumental que nos hace maximizadores de utilidad o beneficio? La hipótesis propuesta es que estos movimientos están contribuyendo a la construcción de una racionalidad reproductiva-ambiental, que sitúa en el centro la reproducción ampliada de la vida, y no del capital. Esta investigación se apoya en un extensivo trabajo de campo con entrevistas, observación participativa y con análisis de fuentes primarias y secundarias.

Ruminal degradability of oat (Avena sativum L., Coast cross (Cynodon dactilon L., and Esmeralda grass (Joysia japonica hay pellet or not/ Degradabilidade ruminal dos fenos de aveia (Avena sativum L, Coast cross (Cynodon dactilon L., e grama Esmeralda (Joysia japonica peletizado ou não

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Teresa Cristina Alves

2006-06-01

Full Text Available The objective of this work was to evaluate the ruminal degradability of dry matter (DM, crude protein (CP, neutral detergent fiber (NDF and acid detergent fiber (ADF of the oat hay (OH, Coast cross hay (CCH, pellet Esmeralda grass hay (PEH and Esmeralda grass hay (EH. The in situ technique was used, with four bovines, castrated, rumen fistulated, distributed in an Latin square 4x4 experimental design. The material was incubated in the rumen in the times 0, 6, 24, 48, 72 and 144 hours. There was no difference between hays on the degradation rate (c, %/h for the CP, NDF and ADF. For the DM, the OH and PEH presented higher degradation rate. There was difference on the effective degradability (ED, % of the hays, and the observed values were: OH, 48.74%; PEH, 42.44%; EH, 35.13%; CCH, 30.24%. It can be concluded that oat hay presented the highest values for the soluble fraction and for the ED of all nutrients evaluated. The pellet process of the Esmeralda grass resulted in higher ED of the DM and of the fiber, with no alteration on the CP ED.O objetivo deste trabalho foi avaliar a degradabilidade ruminal da matéria seca (MS, proteína bruta (PB, fibra em detergente neutro (FDN e fibra em detergente ácido (FDA do feno de aveia (FA, feno de Coast cross (FCC, feno de grama Esmeralda peletizado (FEP e feno de grama Esmeralda (FE. Foi utilizada a técnica in situ com quatro bovinos machos, castrados, fistulados no rúmen, distribuídos em um delineamento experimental em quadrado latino 4x4. O material foi incubado no rúmen nos tempos de 0, 6, 24, 48, 72 e 144 horas. Não houve diferença entre os fenos na taxa de degradação (c, %/h para a PB, FDN e FDA. Para a MS, o FA e FEP apresentaram maior taxa de degradação. Houve diferença na degradabilidade efetiva (DE da MS dos fenos sendo os valores observados: FA, 48,74%; FEP, 42,44%; FE, 35,13%; FCC, 30,24%. Conclui-se que o feno de aveia obteve maiores valores para a fração solúvel e maior

Adubação nitrogenada para milho com o uso de plantas de cobertura e modos de aplicação de calcário Forms of lime application, cover crops and nitrogen rates in maize

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Aguinaldo José Freitas Leal

2013-04-01

Full Text Available O sistema plantio direto (SPD é uma realidade na região dos Cerrados, mas alguns questionamentos persistem nesse tipo de manejo como o modo de realização da calagem e a dose de nitrogênio (N a ser adotada em cultura comercial, em relação às culturas precedentes. Desse modo, objetivou-se avaliar modos de aplicar o calcário na implantação do SPD e o efeito de culturas de cobertura precedentes sobre a necessidade de adubação nitrogenada da cultura do milho, durante diferentes anos agrícolas. O delineamento experimental utilizado foi de blocos casualizados, em esquema fatorial 5 x 2 (modos de aplicação do calcário x culturas de cobertura e posterior divisão em três subparcelas, referentes às doses de N (0, 90 e 180 kg ha-1. Foram avaliados quatro modos de aplicação de calcário: incorporado a 0-0,2 m, em out./2001; dose total em superfície aplicada, em out./2001; aplicação de 1/2 da dose, em out./2001, e 1/2, em ago./2002, na superfície; e aplicação de 1/3 da dose recomendada, em mar./2001, + 1/3, em out./2001, e 1/3, em ago./2002, também em superfície. Além de um tratamento testemunha (sem calcário e duas culturas de cobertura, crotalária e milheto. Os diferentes modos de calagem não alteraram a produtividade de grãos de milho. O cultivo de milho após crotalária apresentou melhor desempenho e menor demanda de adubação nitrogenada, quando comparado ao cultivado após milheto.The no-tillage (NT management is widely used in the Cerrado region, but some questions remain unanswered, for example about the need of liming and adequate nitrogen rates for commercial crops when preceded by cover crops. Our objective was to evaluate the effect of precedent cover crops on the maize demand for nitrogen fertilization and forms of liming preceding the adoption of no-tillage management (NT in different growing seasons. The experiment was arranged in a randomized block factorial design 5 x 2 (liming forms x cover crops and

Body weight change of Abergelle breed and Abergelle crossbred goats fed hay supplemented with different level of concentrate mixture.

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Amare, Bewketu; Alemu, Tewodros; Deribe, Belay; Dagnachew, Alemu; Teshager, Natnael; Tsegaye, Alemu

2018-03-01

The experiment was conducted at Sekota District using 36 intact yearling males of pure Abergelle breed and Abergelle crossbred goats (50%) with a mean live weight of 18.92 ± 0.72 kg (mean ± SE). The objective of the experiment was to evaluate the effect of different levels of concentrate mixture supplementation on feed intake, live weight gain, and economic gain of the breeds. Goats were blocked based on initial body weight and were randomly assigned to the dietary treatments. The experimental design was a 2 × 3 factorial in RCBD (randomized complete block design). The treatments included ad libitum feeding of local grass hay and supplementation with three levels (184, 368, and 552 g/day) of concentrate mixture. The experiment consisted of 90 days of feeding. Daily, total dry matter and CP (crude protein) intakes were affected by diet and genotype (P < 0.01). Significant decrease (P < 0.001) in hay intake was observed as the level of the supplement increased. Besides, substitution rate increased with increasing levels of supplementation. Average daily body weight gains were significantly impacted only by diet. Animals fed on 184 significantly lower weights, while nonsignificant difference was observed in live weight gain between 368 and 552 supplemented group. Supplementation of 368 concentrate mix significantly improved (P < 0.05) feed intake, daily weight gain, and feed conversion efficiency. Supplementation of 368 g/day had showed significantly higher net return for both goat breeds. However, the Abergelle breed was significantly better in net profit and sensitivity than the crossbreed. Both genotypes performed better with the diet containing 368 g/day than that with 184 and 552 g/day of concentrate supplementation.

Feed intake and utilization in sheep fed graded levels of dried moringa (Moringa stenopetala) leaf as a supplement to Rhodes grass hay.

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Gebregiorgis, Feleke; Negesse, Tegene; Nurfeta, Ajebu

2012-03-01

The effects of feeding graded levels of dried moringa (Moringa stenopetala) leaf on intake, body weight gain (BWG), digestibility and nitrogen utilization were studied using male sheep (BW of 13.8 ± 0.12 kg). Six sheep were randomly allocated to each of the four treatment diets: Rhodes grass (Chloris gayana) hay offered ad libitum (T1), hay + 150 g moringa leaf (T2), hay + 300 g moringa leaf (T3), hay + 450 g moringa leaf (T4) were offered daily. A 7-day digestibility trial and an 84-day growth experiments were conducted. Dry matter (DM), organic matter (OM) and crude protein (CP) intakes increased (P moringa leaf in the diets. Sheep fed T2, T3 and T4 diets gained (P  0.05) among treatments. The digestibility of dietary CP increased (P moringa leaf, but there was no significant difference between T2 and T3 diets. The nitrogen (N) intake and urinary N excretion increased (P moringa leaf. The N retention was highest (P moringa leaf supplementation. The control group was in a negative N balance. Supplementing a basal diet of Rhodes grass hay with dried moringa leaves improved DM intake, BWG and N retention. It is concluded that M. stenopetala can serve as a protein supplement to low-quality grass during the dry season under smallholder sheep production system.

Ressonância magnética funcional para avaliação do incômodo do zumbido em pacientes com audiometria normal

OpenAIRE

Silvia Cristina Batezati Alves

2008-01-01

INTRODUÇÃO: As terapias mais eficazes para zumbido são baseadas nos modelos psicológico e neurofisiológico, que teorizam que o incômodo existente é resultado da interação dinâmica dos centros auditivos, sistemas límbico e nervoso autônomo. Embora sejam amplamente aceitos na prática clínica, ainda necessitam validação científica. A ressonância magnética funcional (RMf) é um método objetivo capaz de identificar as áreas cerebrais descritas pelos modelos, como também a rede neural relacionada à ...

La gestión social del recuerdo y el olvido: reflexiones sobre la transmisión de la memoria

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Christopher Bernard García Peñaranda

2011-04-01

Full Text Available El artículo aborda el concepto de memoria en la obra de Joel Candau. Fija su atención en la importancia que tiene para los diferentes grupos sociales la transmisión de la memoria. Nuestra identidad y nuestra vida social se construyen, generación tras generación, a través de la gestión de los recuerdos y los olvidos. Y es imposible pensar en una sociedad cohesionada y estructurada sin esta transmisión, en la que los medios de comunicación y las agencias de socialización juegan un papel fundamental. En esta construcción social hay un lugar ineludible para las tragedias, pues muchos grupos sociales articulan su identidad en torno a ellas, como elemento unificador.

Un repaso por el origen y una mirada puesta en el presente. ¿Qué tiene para ofrecernos el periodismo digital?

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Lic. Mónica Tejera Cruz

2002-01-01

Full Text Available El fenómeno de Internet no pasa inadvertido a ningún mortal. Mucho menos cuando se dedican al mundo de la comunicación. Para los periodistas, la aparición de la Red y el desarrollo de la Word Wide Web ha venido a coquetear con su ansia de comunicar, informar, expresar; a fin de cuentas, transmitir mensajes. El desarrollo de la tecnología ha puesto en bandeja de plata un nuevo soporte que permite llegar a las personas a través de los ordenadores y abre un universo de posibilidades para explotar, pero que al mismo tiempo hay que entender y asimilar. Un repaso hacia el origen de un nuevo medio con el que ya convivimos y una mirada puesta en el presente de su desarrollo vertiginoso.

Reseña en primera persona

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Fernández Vara, Guillermo

2005-02-01

Full Text Available Agradezco sinceramente la oportunidad que se me brinda para dar mi opinión, para contar mis impresiones, para ofrecer mis reflexiones o para, simplemente, expresar mis certidumbres y mis dudas, que de todo hay en un mundo tan complejo como es el de la sanidad. Hace casi diez años que me senté por primera vez en el Consejo Interterritorial del Sistema Nacional de Salud. Gobernaba por entonces en España el PSOE y lo haría hasta Marzo de 1996, era Ministra de Sanidad y Consumo una persona a la que quiero mucho y respeto más, M^ª Ángeles Amador. Conoceré luego a cuatro ministros más, J.M. Romay, C. Villalobos, A. Pastor y E. Salgado.…

Avaliação de fontes de urease na amonização de fenos de Brachiaria brizantha com dois teores de umidade Evaluation of urease sources in the ammoniation of Brachiaria brizantha hays with two moisture levels

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Liandra Maria Abaker Bertipaglia

2005-04-01

Full Text Available O efeito da amonização com uréia (5,0% matéria seca do feno de Brachiaria brizantha, com dois teores de umidade (15 ou 30% de umidade, associado a três fontes de urease (feno de capim Brachiaria decumbens, capim-elefante [Pennisetum purpureum] e leucena [Leucaena leucocephala], foi avaliado. Foram determinados os teores de proteína bruta (PB, fração solúvel (A, frações de proteína verdadeira solúvel e insolúvel em borato fosfato (B1 e B2, fração de proteína potencialmente degradável (B3 e fração da proteína insolúvel em detergente ácido (C. Avaliaram-se os teores de fibra em detergente neutro (FDN, fibra em detergente ácido (FDA, celulose (CEL, hemicelulose (HEM e lignina (LIG e digestibilidade in vitro da matéria seca (DIVMS. O delineamento experimental foi o de blocos inteiramente casualizados, com 10 tratamentos (dois controles, 15 e 30% umidade, sem uréia e sem urease; dois controles, 15 e 30% umidade, com uréia e sem urease; seis combinações de fontes de urease e conteúdo de umidade e três repetições. A amonização dos fenos com diferentes conteúdos de umidade, associados a fontes de urease, aumentou os teores de PB e da fração A, mas não afetou B1 e B2. Contudo, as frações B3 e C diminuíram em reposta à amonização. A aplicação de uréia nos fenos de 30% de umidade, associados ou não a fontes de urease, diminuiu os teores de FDN. A adição de fontes de urease não alterou os teores dos constituintes da parede celular, quando comparada aos tratamentos amonizados com uréia. Os tratamentos aplicados não proporcionaram efeitos consistentes sobre os teores de FDA e de CEL dos fenos e não afetaram os teores de LIG. A aplicação de uréia associada a 15 ou 30% de umidade foi favorável para aumentar o nitrogênio solúvel do feno de Brachiaria brizantha e diminuir o nitrogênio indisponível para o ruminante.The urea ammoniation (5.0% dry matter effects in Brachiaria brizanta hay baled with two

À procura do sujeito no/do trabalho de Enfermagem: o acontecimento "Foucaultiano e as sujeições do trabalhador La procura del sujeto en/del trabajo de enfermería: el acontecimiento "Foucaultiano" y las sujeciones del trabajador The subject search at and of the nursing work: the Foucaul's event and the worker's subjections

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Mara Ambrosina Vargas

2007-03-01

Full Text Available O ensaio reflexivo aborda o sujeito no/do trabalho em Enfermagem, tendo como suporte teórico o conceito de acontecimento em Foucault. Descreve e analisa quatro acontecimentos que podem sintetizar algumas das problemáticas da Enfermagem contemporânea, a saber: diferenças de realidade, hibridismo humano-máquina, rede de relações e processo de construção do conhecimento científico. Constata que as atuais sujeições do trabalhador mostram-se muito mais complexas, o que inviabiliza entender a questão da subjetividade do trabalhador em Enfermagem somente a partir da noção de sujeições econômicas. Porém, sinaliza que, mesmo não escapando de determinados modos de sujeição do presente, há espaços produtivos de desafios, lutas, portanto de liberdade para repensar o trabalho na Enfermagem.El ensayo reflexivo aborda al sujeto en el/del trabajo en enfermería, tiene como soporte teórico el concepto de suceso en Foucault. Describe y analiza cuatro sucesos que pueden sintetizar algunas de las problemáticas de la enfermería contemporánea, como por ejemplo: diferencias de realidad, hibridismo humano máquina, red de relaciones y proceso de construcción del conocimiento científico. Constata que las actuales sujeciones del trabajador se muestran mucho más complejas, lo que hace inviable entender la cuestión de la subjetividad del trabajador en enfermería solamente a partir de la noción de sujeciones económicas. Sin embargo, señala que, aunque no escape de determinados modos de sujeción del presente, hay espacios productivos de desafíos, luchas y, por lo tanto, de libertad para repensar el trabajo en enfermería.The reflexive essay approaches the subject at/of nursing work, grounded by the Foucault´s theoretical concept of event. It describes and analyzes four events that can synthesize some of the contemporary nursing problems, that is: different realities, man-machine hybridism, net of relations, and the process of

Effect of feed restriction with voluntary hay intake on the performance and quality of laying hen eggs=Efeito da restrição alimentar com oferta de feno sobre o desempenho e a qualidade dos ovos de poedeiras

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Mário Sérgio Abe

2012-04-01

Full Text Available The objective was to evaluate the effect of a quantitative feed restriction on the voluntary intake of hay, the performance of laying hens, and on egg quality. A total of 150 Hisex Brown laying hens at 51-weeks old were distributed into five treatments and five replications of six hens each. The treatments consisted of control, with supply of 100 g of feed bird-1 day-1 without hay; and the others consisting of a feed restriction of 5, 10, 15 and 20% of the diet offered to the birds in the control treatment, along with an ad libitum supply of cunhã hay (CH, leucaena leaf meal (LLM and tifton hay (TH. A linear increase was found in the hay intake with increasing level of dietary restriction. However, egg production, egg weight, egg mass and feed conversion decreased linearly. Yolk color was affected by the treatments. Birds with 20% feed restriction presented the greatest yolk pigmentation. In conclusion, laying hens can be subjected to a 5% feed restriction with supply of hay ad libitum.O objetivo da pesquisa foi avaliar o efeito da restrição alimentar sobre a ingestão voluntária de feno, o desempenho das aves e a qualidade dos ovos. Foram utilizadas 150 poedeiras da linhagem Hisex Brown com 51 semanas de idade. As aves foram distribuídas em cinco tratamentos com cinco repetições de seis aves cada. O tratamento controle consistiu no fornecimento de 100 g de ração ave-1 dia-1 sem oferta de feno e os demais na oferta de 95, 90, 85 e 80 g de ração ave-1 dia-1, que corresponderam, respectivamente, às restrições de 5, 10, 15 e 20% da quantidade de ração, com o fornecimento de feno à vontade. Foram utilizados os fenos de cunhã, das folhas de leucena e de tifton. Com o aumento no nível de restrição, houve aumento no consumo diário de feno, redução na produção, na massa de ovo, no peso médio das aves e piora na conversão alimentar. Em relação às características de qualidade dos ovos, apenas a coloração da gema variou

Artista docente: incursões e mutações nos modos de existência

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Rosa C. Primo

2015-10-01

Full Text Available O texto que se segue tem como propósito discutir os processos nos quais o artista docente está enredado desde uma perspectiva centrada na arte e seus embates no plano institucional das universidades. Para tanto, nos aproximamos da educação tendo como foco os modos através dos quais ela se agencia à questão da subjetividade: constituição de identidades, maneiras de agir, sentir e pensar, normalizadas, sujeitadas, regulamentadas, cujo pensamento dar-se pelo viés da recognição e representação; e, por outra via, na qual a educação se encontra implicada na invenção de maneiras singulares de relação a si e com a alteridade – um pensar que traz consigo as composições de forças que engendram a corporeidade dançante. ABSTRACT The following text aims to discuss the processes in which the teaching artist is embroiled from a perspective centered on art and its clashes at the institutional level of universities. To do so, we approach education with a focus on the ways in which it touts the question of subjectivity: formation of identities, ways of acting, feeling and thinking, normalized, subjected, regulated, whose thought is given by the bias of recognition and representation; and, otherwise, in which education is implicated in the invention of singular ways of relation to oneself and to alterity - a way of thinking that brings the compositions of forces that engender the dance corporeality. KEYWORDS Teacher-artist, dance corporeality, subjectivity.

Educação e desenvolvimento: modos de regulação dos sistemas educacionais

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Marisa Ribeiro Teixeira Duarte

2012-11-01

Na atualidade, o debate em torno do desenvolvimento brasileiro é adjetivado como qualificativo de “social” em diversos documentos. Este artigo, mediante a análisede conteúdo de obras clássicas de Sociologia Educacional no País, estuda como searticulou o binômio “educação e desenvolvimento”. A pesquisa, após sintetizar asproposições sociológicas dos períodos anteriores, analisa três aspectos sobre Educaçãoe Desenvolvimento, presentes no documento final da Conferência Nacional deEducação – CONAE, realizada no Brasil em 2010. Participaram da Conferênciaaproximadamente 5.000 educadores de diferentes regiões do País, sob a coordenaçãodo Ministério da Educação. E seu documento final apresenta proposições para aelaboração da Lei que aprova o Plano Nacional de Educação. O diagnóstico sobreo desenvolvimento do País constante no documento final da CONAE, e as funçõesatribuídas às instituições educacionais e aos modos de planejamento subjacentessão analisados à luz da sociologia das regulações sociais. O estudo conclui expondovertentes analíticas esquecidas no documento da Conferência e orientador do PlanoNacional da Educação.

Economic feasibility of hay enriched extruded production as a complete diet for equine

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Kátia Feltre

2016-04-01

Full Text Available The present study aimed to evaluate the economic feasibility of production and commercialization project of Hay Enriched Extruded (HEE as a complete diet for horses. The study was based on survey data and quotation activities involving price from the land preparation (repair, planting and fertilization to the processing of the product at the factory (extrusion and marketing. Transportation costs and taxes were also considered. Discounted Cash Flow (30 years was used to calculate the profitability indicator and the Profit and Loss Statement (PLS. Calculations were developed using Microsoft Office Excel® spreadsheets. Three production scenarios were simulated with different consumer prices: Scenario 1 - equivalent to the complete diet, where the ingredients are supplied together, but purchased separately; Scenario 2 - Considering a value 10% higher than the complete diet; Scenario 3 - Considering a value 20% higher than the complete diet. We observed that the project was economically viable in the three suggested scenarios with positive Net Present Value, Internal Rate of Return greater than 9.4% and payback of 11 to 2 years. The results enable us to conclude that the product may be a promising investment for both product quality and ease of use as the rapid return on invested capital.

Endogenous phosphorus excretion by sheep fed hydrolyzed sugarcane bagasse, lucerne hay and citrus pulp

International Nuclear Information System (INIS)

Dias, R.S.; Roque, A.P.; Vitti, D.M.S.S.

2006-01-01

The objective of this study was to determine endogenous phosphorus excretion in sheep fed with different diets. Sixteen male growing sheep, received a basic diet with: 42% hydrolyzed sugarcane bagasse (HSB), 45% lucerne hay (LH) plus 14% hydrolyzed sugarcane bagasse, and 30% citrus pulp (CTP) plus 40% hydrolyzed sugarcane bagasse. A dose of 7.7 MBq 32 P was injected into the left jugular vein of each animal. The P endogenous fecal losses were: 1.69, 2.50, 2.33 and 1.45 g/animal for treatments HSB, LH, and CTP respectively (P>0.05). The type of diet influenced slight endogenous P excretion but altered excretion of P in urine. Endogenous P excreted in feces (P F ) comes mainly from saliva and represents an important loss of P. The estimation of net requirements of phosphorus (P) for ruminants includes endogenous losses, which is also essential for calculating true absorption of this mineral. Physical structure of the feed may influence endogenous losses, altering the metabolism of P and also the demand of this mineral, therefore being important to know how different feeds affect endogenous P losses. (author)