WorldWideScience

Sample records for burros

  1. Feral burro populations: Distribution and damage assessment

    Energy Technology Data Exchange (ETDEWEB)

    Tiller, B.L.

    1997-12-01

    This report was prepared to document (1) regional use of the National Training Center (NTC), Fort Irwin, CA, by burros, (2)influence of available water sources for burro use, (3) burro-related damage at several NTC sensitive habitat areas, and (4) management recommendations. All work described in this report was conducted in 1996 and 1997. Roadside transects were conducted and mapped using Geographical Positioning Systems/Geographical Information Systems (GPS/GIS) to indirectly measure relative abundance of feral burros (scat per mile) and to examine the spatial relationship of burro use to permanent or semi-permanent water sources that exist on the NTC. The authors also surveyed several permanent springs for burro-related damage and mapped the impact areas using GPS/GIS to quantify the extent of damage and to provide guidance on size and extent of burro exclosures in those areas. Photographs of the spring sites were also archived and permanent photo points were established for long-term monitoring of feral burro damage areas. In addition, aquatic invertebrate data collected during another spring site study were summarized and discussed in relation to burro-related impacts on the NTC`s sensitive habitats. Several water-quality parameters were also obtained from each spring, including temperature, dissolved oxygen, pH, and total dissolved solids.

  2. Functional aspects of blood platelets in irradiated burros

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, M.D.

    1977-02-01

    In irradiated burros (Equus asinus), a delayed clinical syndrome characterized by a depletion of megakarocytes and platelets has been observed. To clarify the cause of this syndrome, the functional abilities of platelets in 7 irradiated and 3 control burros were studied in vitro. The irradiated burros were survivors (> 18 years) of total-body exposures to near-lethal doses of ..gamma..-radiation. Burro platelet aggregability induced with adenosine diphosphate and thrombin, and with a complex stimulator from burro aortas, was determined by means of a self-calibrating aggregometer. Data indicated that the aggregation responsiveness to adenosine diphosphate and thrombin of platelets from surviving irradiated and unirradiated burros is not defective. An extractible collagen-like stimulator of platelet aggregation was discovered in the aorta of a burro that had survived > 24 years after exposure to a total-body dose of 545 roentgens (R) of tantalum-182 ..gamma..-radiation. The platelet-aggregating ability of this stimulator from the vessel wall of the irradiated burro was nearly fourfold greater than that from the aorta of an unirradiated control. Perhaps a delayed radiation effect could be the cause of this vascular agent's high platelet-aggregating ability and could lead to a clinical syndrome marked by depletion of megakaryocytes and platelets.

  3. Platelet affinity for burro aorta collagen

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, M.D.

    1977-10-01

    Despite ingenious concepts, there are no unequivocal clues as to what, when, and how some undefined biochemical factor(s) or constituent(s) that localizes in the arterial wall can precipitate a thromboatheromatous lesion or arterial disease. The present study focused on the extraction, partial purification, and characterization of a collagen-active platelet stimulator from the aortas of aged burros. The aggregator moiety in the aorta extracts invariably had a higher affinity for platelets in citrated platelet-rich plasma of human beings than for platelets of homologous burros. The platelet-aggregating factor(s) in the aorta extract was retained by incubation with ..cap alpha..-chymotrypsin. Platelet-aggregating activity was rapidly abolished after incubation with collagenase, as determined by platelet-aggregometry tests. Evidence based on light microscope and polysaccharide histochemical reactions indicates a probability that the intracellular amorphous matrix (PAS-positive) and filamentous components (PTAH-positive) expelled from smooth muscle cells disrupted during homogenization of the aorta may be a principal source of a precursor collagen species which is a potent inducer of platelet aggregation.

  4. 36 CFR 222.23 - Removal of other horses and burros.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false Removal of other horses and... AGRICULTURE RANGE MANAGEMENT Management of Wild Free-Roaming Horses and Burros § 222.23 Removal of other horses and burros. Horses and burros not within the definition in § 222.20(b)(13) which are introduced...

  5. 76 FR 55107 - Wild Horse and Burro Advisory Board; Meeting

    Science.gov (United States)

    2011-09-06

    ..., Virginia 22202. The hotel phone number for reservations is 703-418-1234 and the fax number is 703-418-1233... telecommunications device for the deaf (TDD) may call the Federal Information Relay Service (FIRS) at 1-800-877-8339... Service on matters pertaining to the management and protection of wild, free-roaming horses and burros on...

  6. 78 FR 46599 - Wild Horse and Burro Advisory Board Meeting

    Science.gov (United States)

    2013-08-01

    ... and likely to influence the BLM's decisions on the management and protection of wild horses and burros. Before including your address, phone number, email address, or other personal identifying information in your comment, you should be aware that your entire comment--including your personal identifying...

  7. A Systematic Review of Wild Burro Grazing Effects on Mojave Desert Vegetation, USA

    Science.gov (United States)

    Abella, Scott R.

    2008-06-01

    Wild burros ( Equus asinus), protected by the 1971 Wild Free-Roaming Horse and Burro Act on some federal lands but exotic animals many ecologists and resource mangers view as damaging to native ecosystems, represent one of the most contentious environmental management problems in American Southwest arid lands. This review synthesizes the scattered literature about burro effects on plant communities of the Mojave Desert, a center of burro management contentions. I classified 24 documents meeting selection criteria for this review into five categories of research: (i) diet analyses directly determining which plant species burros consume, (ii) utilization studies of individual species, (iii) control-impact comparisons, (iv) exclosure studies, and (v) forage analyses examining chemical characteristics of forage plants. Ten diet studies recorded 175 total species that burros consumed. However, these studies and two exclosure studies suggested that burros preferentially eat graminoid and forb groups over shrubs. One study in Death Valley National Park, for example, found that Achnatherum hymenoides (Indian ricegrass) was 11 times more abundant in burro diets than expected based on its availability. Utilization studies revealed that burros also exhibit preferences within the shrub group. Eighty-three percent of reviewed documents were produced in a 12-year period, from 1972 to 1983, with the most recent document produced in 1988. Because burros remain abundant on many federal lands and grazing may interact with other management concerns (e.g., desert wildfires fueled by exotic grasses), rejuvenating grazing research to better understand both past and present burro effects could help guide revegetation and grazing management scenarios.

  8. 36 CFR 222.21 - Administration of wild free-roaming horses and burros and their environment.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false Administration of wild free-roaming horses and burros and their environment. 222.21 Section 222.21 Parks, Forests, and Public Property... Burros § 222.21 Administration of wild free-roaming horses and burros and their environment. (a) The...

  9. 36 CFR 261.23 - Wild free-roaming horses and burros.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false Wild free-roaming horses and... AGRICULTURE PROHIBITIONS General Prohibitions § 261.23 Wild free-roaming horses and burros. The following are prohibited: (a) Removing or attempting to remove a wild free-roaming horse or burro from the National Forest...

  10. Burro aortic collagen: composition and characteristics of interaction with platelets

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, M.D. (Comparative Animal Research Lab., Oak Ridge, TN); Huang, W.O.W.; Cross, F.H.; Lin, K.T.D.

    1979-03-01

    A collagenous protein(s) from the aortas of three aged burros (Equus asinus) was isolated, using an acid (83.5 mM glacial acetic acid) extraction technique and subsequent pepsin digestion of the extracts with extensive dialysis. This protein(s) was then precipitated by adding solid NaCl (w/v, 9.45 g/100 ml) to the dialyzed aortic tissue extracts. The precipitate was collected by ultracentrifugation, concentrated by dissolving in one-fourth the original volume of acetic acid, and again extensively dialyzed. Values for amino acids in residues/1,000 indicated that the extractable aortic material(s) contained substantial amounts of proline, hydroxyproline, lysine, hydroxylysine, cysteine, and all other amino acid residues usually found in collagen. Examination by electrophoresis in sodium dodecyl sulfate polyacrylamide-gel indicated the presence of 5 major polypeptide subunits of the molecular weight range of 116,000 to 300,000. A powerful inducer of platelet aggregation was found in the acid solubilized, pepsin-digested aortic extracts. Human platelets were sensitive to the agent(s) down to 0.1 to 0.2 ..mu..g of aortic solids added to 0.45 ml of platelet-rich plasma. Platelets from goats and sheep were sensitive down to additions of 0.2 ..mu..g of solids, burro platelets to 0.5 to 1 ..mu..g, bovine platelets to 1 to 2 ..mu..g, and swine platelets to 2 to 3 ..mu..g. Thus, this powerful burro aortic collagen-containing material(s) may help to distinguish minor modifications in functional characteristics of platelets from persons or animals suffering from hemostatic or thrombotic disorders.

  11. Esteatosis en un burro (Equus asinus. Primer reporte en Colombia

    Directory of Open Access Journals (Sweden)

    José Cardona Á.

    2011-12-01

    Full Text Available Se describe un caso de esteatosis en un burro (Equus asinus, castrado, de 15 años de edad, procedente del municipio de San Antero (Córdoba, Colombia, al cual se le detectó ligamento nucal engrosado, duro y doloroso, dando la impresión de un doble cuello y edemas subcutáneos indurados en pared costal, abdominal y pectoral. Tambiénpresentó masas duras en la unión de músculos semimembranoso y semitendinoso. Por todo lo anterior, mostró dificultad para realizar movimientos coordinados del cuello, nuca y de traslado. Estos hallazgos obedecen principalmente a una deficiencia de selenio y vitamina E, sirviendo como parámetro diagnóstico para la identificación de esta enfermedad en equinos, por lo cual se determinó la actividad eritrocitica de la enzima glutatión peroxidada (GSH-Px, arrojando resultados muy bajos. Este cuadro es también conocido en equinos como enfermedad de la grasa amarilla o esteatitis, que produce degeneración del tejido adiposo, siendo reemplazado por tejido conectivo con depósitos de calcio. Puede estar asociada a miodegeneración nutricional o distrófica (enfermedad del músculo blanco. Es el primer reporte de esta enfermedad en burros(Equus asinus que se hace en Colombia.

  12. 36 CFR 222.25 - Protection of wild free-roaming horses and burros when they are upon other than the National...

    Science.gov (United States)

    2010-07-01

    ...-roaming horses and burros when they are upon other than the National Forest System or public lands. 222.25... MANAGEMENT Management of Wild Free-Roaming Horses and Burros § 222.25 Protection of wild free-roaming horses... animals and herds of wild free-roaming horses and burros will be under the protection of the Chief, Forest...

  13. Estimated abundance of wild burros surveyed on Bureau of Land Management Lands in 2014

    Science.gov (United States)

    Griffin, Paul C.

    2015-01-01

    The Bureau of Land Management (BLM) requires accurate estimates of the numbers of wild horses (Equus ferus caballus) and burros (Equus asinus) living on the lands it manages. For over ten years, BLM in Arizona has used the simultaneous double-observer method of recording wild burros during aerial surveys and has reported population estimates for those surveys that come from two formulations of a Lincoln-Petersen type of analysis (Graham and Bell, 1989). In this report, I provide those same two types of burro population analysis for 2014 aerial survey data from six herd management areas (HMAs) in Arizona, California, Nevada, and Utah. I also provide burro population estimates based on a different form of simultaneous double-observer analysis, now in widespread use for wild horse surveys that takes into account the potential effects on detection probability of sighting covariates including group size, distance, vegetative cover, and other factors (Huggins, 1989, 1991). The true number of burros present in the six areas surveyed was not known, so population estimates made with these three types of analyses cannot be directly tested for accuracy in this report. I discuss theoretical reasons why the Huggins (1989, 1991) type of analysis should provide less biased estimates of population size than the Lincoln-Petersen analyses and why estimates from all forms of double-observer analyses are likely to be lower than the true number of animals present in the surveyed areas. I note reasons why I suggest using burro observations made at all available distances in analyses, not only those within 200 meters of the flight path. For all analytical methods, small sample sizes of observed groups can be problematic, but that sample size can be increased over time for Huggins (1989, 1991) analyses by pooling observations. I note ways by which burro population estimates could be tested for accuracy when there are radio-collared animals in the population or when there are simultaneous

  14. 77 FR 16063 - Notice of Wild Horse and Burro Advisory Board Meeting

    Science.gov (United States)

    2012-03-19

    ... and likely to influence BLM's decisions on the management and protection of wild horses and burros. Before including your address, phone number, email address, or other personal identifying information in your comment, you should be aware that your entire comment--including your personal identifying...

  15. El burro cuántico de Sancho Panza (Los Nobel en Física 2003)

    OpenAIRE

    Salvador Galindo Uribarri; Jaime Klapp Escribano

    2004-01-01

    EL premio Nobel en Física 2003 fue compartido por Leggett, Abrikosov y Ginzburg, por sus contribuciones al entendimiento de fenómenos a bajas temperaturas. Este ensayo explica, a un nivel elemental, sus teorías. Además este trabajo presenta una serie de eventos relacionados con las teorías mencionadas que forman una historia de tres animales cuánticos: un gato, un calamar y un burro.

  16. Burro aortic collagen: platelet aggregating activity and ultrastructural changes induced by plasma

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, M.D. (Comparative Animal Research Lab., Oak Ridge, TN); Cross, F.H.; Dumont, J.N.

    1978-03-01

    A fibrillar collagen molecule was extracted from the upper thoracic aorta of an old burro (Equus asinus). Presence of the collagen in the extract was determined by amino acid analysis, scanning and transmission electron microscopy, incubation with collagenase, and assays of its platelet-aggregating capacity by ''aggregometry.'' Based on the amino acid ratios of proline/hydroxyproline and lysine/hydroxylysine, the collagenous protein most nearly resembles type I of 4 main published types of collagen. Quantitative assays of the collagen as a mediator of platelet aggregation showed human platelets more sensitive and sheep platelets slightly less sensitive than burro platelets. Incubation with collagenase abolished platelet aggregation capacity and converted the fibrillar collagen to a gel-like mass. Incubation with galactose oxidase neither lessened nor intensified the collagen-mediated platelet aggregation. Incubation with burro plasma decreased platelet aggregating activity and changed the collagen ultrastructure (demonstrated with scanning electron microscopic imaging). The significance of a naturally occurring plasma (protein) factor(s) which may have a regulatory role in reducing the chemical activity of the fibrillar collagen molecule with platelets is also discussed.

  17. Tratado del burro y otras bestias. Una historia del simbolismo animal en Occidente, de Alberto del Campo Tejedor

    Directory of Open Access Journals (Sweden)

    Santiago Montero-Cruzada

    2015-01-01

    Full Text Available Con la máxima de Persio como jáquima, Auriculas asini quis non habet?, se apuntan los aspectos principales que han llevado a realizar una revisión analítica y crítica del contenido de la obra Tratado del burro y otras bestias. Una historia del simbolismo animal en Occidente, del antropólogo Alberto del Campo Tejedor.

  18. Estabilidad y rupturas dinámica en el Holoceno de la costa surperuana: el valle de La Quebrada de los burros (departamento de Tacna

    Directory of Open Access Journals (Sweden)

    1999-01-01

    Full Text Available STABILITÉ ET RUPTURES DYNAMIQUES DE L’HOLOCÈNE DE LA CÔTE SUD-PÉRUVIENNE : LA VALLÉE DE LA QUEBRADA DE LOS BURROS (DÉPARTEMENT DE TACNA. L’examen et la datation des dépôts sédimentaires conservés le long de la Quebrada de los Burros (département de Tacna, Pérou, précisent la connaissance des variations climatiques et dynamiques de la période 8500-3200 BP. Deux épisodes à laves torrentielles, violents et certainement brefs, encadrent une longue période nettement plus calme durant laquelle se sont déposés des sédiments fins, parfois organiques, contemporains de la présence d’installations humaines. El estudio y la datación de los sedimentos depositados a lo largo de la Quebrada de los Burros (departamento de Tacna, Perú, permiten un buen conocimiento de las variaciones climáticas y dinámicas del periodo 8500-3200 BP. Dos episodios con lavas torrenciales, violentos y seguramente breves, encajan en un largo periodo nítidamente más tranquilo, donde se depositan sedimentos finos, a veces orgánicos, contemporáneos de la presencia de instalaciones humanas. HOLOCENIC STABILITY AND BREAKS IN THE SOUTHERN PERUVIAN COAST: THE QUEBRADA DE LOS BURROS VALLEY (DEPARTMENT OF TACNA. Radiocarbon measurements of organic sedimentary deposits from the Quebrada de los Burros (Department of Tacna, Peru permit the reconstruction of climate dynamics during the mid-Holocene (3200-8500 years BP.Two short debris flow events marks the beginning and the end of period of fine grain sedimentation processes. This period is contemporaneous with the presence of human settlements in the Quebrada.

  19. Geology and geochemistry of the Redrock Granite and anorthosite xenoliths (Proterozoic in the northern Burro Mountains, Grant County, New Mexico, USA

    Directory of Open Access Journals (Sweden)

    Virginia T. McLemore

    2002-01-01

    Full Text Available Mineral ages from the A-type granites and anorthosite xenoliths in the Redrock area in the northwestern Burro Mountains in southwestern New Mexico cluster around ~1220–1225 Ma and provide yet another example of bimodal igneous activity during this time period in the southwestern United States. The metaluminous to peraluminous, marginally alkaline to subalkaline Redrock Granite exhibits the textural, mineralogical, and geochemical features of A-type granitethat was emplaced at a relatively high crustal level. Field relationships, whole rock and mineral geochemical and isotopic trends suggest that the four phases of the Redrock Granite are genetically related, with the miarolitic biotite/alkali feldspar granite being the youngest phase. Spatial relationships and geochemical data suggest that the anorthosite xenoliths were coeval with the RedrockGranite, which is consistent with the anorthosite being derived from the upper mantle, possibly due to deep mantle upwellings, and the Redrock Granite from the lower crust. The process involved melting in the upper mantle, emplacement of anorthosite in the crust resulting in partial crustal melting and thinning, and, finally, intrusion of shallow silicic plutons, the Redrock Granite. The Redrock Granite and anorthosite were presumably derived from sources characterized by subtle, long-term LREE depletion, with εNd (at 1220 Ma values on theorder of +1 to +2.

  20. Observaciones sobre la dieta de la lechuza de los campanarios en la Quebrada de los Burros (dpto. Tacna, Perú

    Directory of Open Access Journals (Sweden)

    2000-01-01

    Full Text Available OBSERVATIONS SUR LE RÉGIME ALIMENTAIRE DE LA CHOUETTE EFFRAIE DANS LA QUEBRADA DE LOS BURROS (DÉPT. DE TACNA, PÉROU. L’analyse de pelotes de régurgitation d’une chouette effraie (Tyto alba a permis de déterminer la diversité et l’abondance des vertébrés constituant son régime alimentaire dans un site de l’extrême sud de la côte péruvienne. Il en ressort que ce rapace se nourrit d’au moins deux espèces de rongeurs, d’une espèce d’oiseau et de deux espèces de lézard. L’ingestion par la chouette d’une biomasse de petits vertébrés d’au moins 1848 g a conduit à la formation de 10 pelotes de régurgitation. Les résultats montrent que (en termes de biomasse les rongeurs constituent le composant principal (72,95 % de l’échantillon de pelotes analysé. La présence d’ossements de lézards suggère l’hypothèse d’une activité prédatrice, non seulement nocturne, mais aussi diurne de Tyto alba. Resumen Sobre la base del análisis de egagrópilas se determinó la diversidad y abundancia de los vertebrados utilizados como presas por la lechuza de los campanarios (Tyto alba en una localidad del extremo sur de la costa peruana. Se ha encontrado que esta especie rapaz utiliza como parte de su dieta por lo menos dos especies de roedores, una de aves y dos de lagartijas. A partir de aproximadamente 1848 g de biomasa de pequeños vertebrados se formaron 10 egagrópilas de esta especie. Los resultados muestran que (en términos de biomasa el componente más importante en la muestra analizada son los roedores (72,95 %. El hallazgo de restos de lagartijas sugiere la hipótesis que la actividad depredadora de Tyto alba no sólo es nocturna sino también diurna. OBSERVATIONS ON THE DIET OF THE BARN OWL IN QUEBRADA DE LOS BURROS (DEPT. OF TACNA, PERU. The analysis of pellets belonging to a barn owl (Tyto alba provided a good idea of the diversity and abundance of vertebrates which had been consumed in a southernmost Peruvian coast

  1. Características morfológicas do funículo espermático do burro (Equus asinus x Equus caballus

    Directory of Open Access Journals (Sweden)

    Roberto Pimenta de Pádua Foz Filho

    1999-01-01

    Full Text Available Estudando 15 pares de funículos espermáticos de burros (Equus asinus x Equus caballus, observamos em 5 pares que seus componentes acham-se envolvidos por delgada cápsula de tecido conjuntivo denso, revestido por mesotélio. Sob esta cápsula e em estreita relação com ela encontra-se espessa camada de musculatura lisa (músculo cremáster interno que acompanha também o mesoducto deferente. A cápsula funicular e o músculo cremáster interno aparecem em alguns pontos levemente pregueados. Os componentes vásculo-nervosos estão envolvidos por tecido conjuntivo frouxo integrado predominantemente por fibras colágenas. A artéria testicular no funículo mostra trajeto sinuoso, túnica interna constituída por endotélio acompanhado de delicada camada de tecido conjuntivo e lâmina elástica limitante interna. Sua espessa túnica média é composta por fibras musculares lisas sustentadas por rede de fibras reticulares, e a túnica externa, por tecido conjuntivo que se confunde com o tecido conjuntivo intervascular. As veias testiculares aparecem em grande número, possuem túnica média formada por fibras elásticas e reticulares, com poucas fibras musculares e são desprovidas de válvulas, envolvem as artérias testiculares formando os plexos pampiniformes. O modelo do segmento da artéria testicular obtido com Neoprene látex 450 em 20 preparações, correspondentes a 10 pares de funículos espermáticos, apresentaram, respectivamente como comprimentos médio, máximo e mínimo, 58,2 cm, 81,0 cm e 44,0 cm à direita e 66,3 cm, 96,0 cm e 51,0 cm à esquerda.

  2. 76 FR 7231 - Wild Horse and Burro Advisory Board; Meeting

    Science.gov (United States)

    2011-02-09

    ... place in Phoenix, Arizona at the Sheraton Phoenix Downtown Hotel, 340 N. 3rd Street, Phoenix, Arizona, 85004. The hotel phone number for reservations is 602-817-5307. Written comments pertaining to the March... & Introductions Old Business Approval of June 15, 2010 Minutes Program Updates Gathers Adoptions Budget Facilities...

  3. Sheldon-Hart - Control of Invasive Horses & Burros

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Monitoring, repair, and replacement of fences along the exterior boundaries of Hart Mountain NAR and Sheldon NWR to prevent future invasion and re-population of...

  4. 75 FR 26990 - Wild Horse and Burro Advisory Board; Meeting

    Science.gov (United States)

    2010-05-13

    ... Advisory Board meeting will take place in Denver, Colorado at the Magnolia Hotel, 818 17th Street, Denver, Colorado, 80202. Their phone number for reservations is 303- 607-9000. Written comments pertaining to the.... DeLorme at any time by calling the Federal Information Relay Service at 1-800-877- 8339...

  5. El "Burro de Oro" : Carlos Coriolano Amador, empresario antioqueño del siglo XIX

    Directory of Open Access Journals (Sweden)

    Luis Fernando Molina Londoño

    1987-10-01

    Full Text Available La escasa y dispersa información escrita sobre el millonario medellinense Carlos Coriolano Amador da la idea de que se trata de un personaje extravagante que no encaja bien con la imagen estereotipada de los frugales empresarios antioqueños del siglo XIX. Sin embargo, por su iniciativa para crear o participar en la formación de numerosas empresas, se asemeja a sus colegas. Fue el accionista principal de la Sociedad Minera de El Zancudo y Sabaletas, de la Sociedad Minera de los Chorros y de las que construyeron el puente de Jericó ("Puente Iglesias", la plaza de mercado cubierta de Guayaquil, la vía de Santa Elena, que hizo carreteable el camino entre Medellín y Rionegro, y diferentes acueductos y alcantarillados en Medellín, donde además tenía algunos de los negocios comerciales más importantes de mercancías importadas. Tuvo, además, plantaciones de café, trilladoras, empresas urbanizadoras en diferentes puntos de la ciudad y promovió el cultivo del trigo, la colonización del Chocó y del suroeste de Antioquia. Aquí nos interesa destacar a este personaje como empresario.

  6. Sheldon- Invasive Non-native Horse and Burro Control and Restoration

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The primary objective of the project is to continue ongoing partnership between the U.S. Fish and Wildlife Service and Friends of Nevada Wilderness for monitoring...

  7. El "Burro de Oro" : Carlos Coriolano Amador, empresario antioqueño del siglo XIX

    OpenAIRE

    Luis Fernando Molina Londoño; Ociel Castaño Z.

    1987-01-01

    La escasa y dispersa información escrita sobre el millonario medellinense Carlos Coriolano Amador da la idea de que se trata de un personaje extravagante que no encaja bien con la imagen estereotipada de los frugales empresarios antioqueños del siglo XIX. Sin embargo, por su iniciativa para crear o participar en la formación de numerosas empresas, se asemeja a sus colegas. Fue el accionista principal de la Sociedad Minera de El Zancudo y Sabaletas, de la Sociedad Minera de los Chorros y de la...

  8. 77 FR 58863 - Notice of Wild Horse and Burro Advisory Board Meeting

    Science.gov (United States)

    2012-09-24

    ... Board meeting will take place in Salt Lake City, Utah at the Radisson Hotel Salt Lake City Downtown, 215 E. South Temple, Salt Lake City, UT 84101. The hotel phone number for reservations is 801-531-7500... Information Relay Service (FIRS) at 1-800-877-8339 to contact the above individual during normal business...

  9. 78 FR 59058 - Second Call for Nominations for the Wild Horse and Burro Advisory Board

    Science.gov (United States)

    2013-09-25

    ... management issues. The Board is structured to provide fair membership and balance, both geographic and... resource planning. No person is to be denied an opportunity to serve because of race, age, sex, religion...

  10. 78 FR 39768 - Notice of Call for Nominations for the Wild Horse and Burro Advisory Board

    Science.gov (United States)

    2013-07-02

    ... management issues. The Board is structured to provide fair membership and balance, both geographic and... resource planning. No person is to be denied an opportunity to serve because of race, age, sex, religion...

  11. 77 FR 37705 - Notice of Call for Nominations for the Wild Horse and Burro Advisory Board

    Science.gov (United States)

    2012-06-22

    ... solutions to resource management issues. The Board is structured to provide fair membership and balance... of race, age, sex, religion, or national origin. The Obama Administration prohibits individuals who...

  12. Norma y legitimación del conocimiento rabínico: ángeles, hombres y vulgares burros

    Directory of Open Access Journals (Sweden)

    de Prado Plumed, Jesús

    2008-06-01

    Full Text Available This article presents an examination of two major working ideas of rabbinical Judaism: a humankind lives through an endless spiritual decline since the days of our pious forefathers (yĕridat ha-dorot; b in matters of legal adjudication, the opinion of active legal decisors (posĕqim is the one and only to be followed, even if divergent from earlier authoritative sources (hilxeta kĕ-vatraˀe. My examination of the nature and present currency of both ideas will be led by the poignant halakhic problem of the agunot (“chained women”. Rather than a thorough epistemology of both ideas, I will favour an argument which highlights the paradox of the link between authority and scholarship in rabbinical Judaism.En el presente artículo se analizan dos ideas comúnmente aceptadas en el judaísmo rabínico: la de que la humanidad vive en un continuo declive espiritual respecto de la época de nuestros piadosos antepasados (yĕridat ha-dorot y la de que la única voz autorizada a la hora de juzgar es la de los juristas en activo cuya opinión haya alcanzado rango vinculante (posĕqim, aunque diverja de la de autoridades precedentes (hilxeta kĕ-vatraˀe. Me serviré del acuciante problema halájico (“legal”, grosso modo de las “mujeres encadenadas” (agunot para trazar la naturaleza y extensión actual de ambas ideas. Antes que a llevar a cabo una completa epistemología de ambas ideas, me centraré en el análisis de la paradoja que resulta del vínculo existente entre reflexión académica y autoridad en el judaísmo rabínico.

  13. El lenador, el nino, y el burro. Serie Primaria. (The Woodcutter, the Little Boy, and the Donkey. Primary Series.)

    Science.gov (United States)

    Marquez, Jerry

    The illustrated book tells the story of a woodcutter, his son, and their donkey. Written in Spanish, the story tells how one day after cutting and selling the wood, the woodcutter, who was very tired, decided to ride the donkey back home. On the way, they met some young girls who thought the woodcutter was very mean for making his son walk while…

  14. En el año del burro: Platero, Freinet y un silencio desenterrado. // In the year of the donkey: Platero, Freinet and the digged up silence.

    Directory of Open Access Journals (Sweden)

    Juan González Ruiz

    2014-06-01

    Full Text Available (ES Recuperar la memoria histórica de la educación escolar española durante el último siglo es tarea difícil y arriesgada en la que a veces salta una dramática sorpresa. Por ejemplo, la de que a partir de la excavación de una fosa común de la Guerra Civil en el Alto de la Pedraja pudiera descubrirse la biografía de un sencillo maestro rural nacido en Cataluña que en los años treinta del pasado siglo hacía que sus alumnos de la escuela de la aldea burgalesa de Bañuelos de Bureba leyeran Platero y yo (de cuya primera edición se cumple ahora el centenario y trabajaran con las técnicas Freinet imprimiendo cuadernos en los que contaban sus experiencias (El Retratista y sus deseos (El Mar. Y que fue salvajemente asesinado en los primeros días de la contienda, enterrados anónimamente sus restos, y condenado al olvido durante siete décadas. Antonio Benaiges, el maestro que prometió el mar (desenterrando el silencio es el título del libro que cuenta todo el proceso de recuperación de esta “memoria de vida y de muerte”, tan humanamente estremecedora como pedagógicamente aleccionadora. (EN Retrieving the historical memory of the Spanish school education over the last century is a difficult and risky task where sometimes a dramatic surprise appears. For example, from the excavation of a mass grave of the Civil War in the Alto de la Pedraja, the biography of a simple rural teacher could be found. He was born in Catalonia and in the thirties of the last century, he made his students from a school in the village of Bureba Banuelos (Burgos read Platero and I (being now the centenary of its first edition and work with Freinet printing techniques, printing their own notebooks with their experiences (The portraitist and desires (The Sea Finding that grave we know he was brutally murdered in the early days of the war, his remains buried anonymously and sentenced to oblivion for seven decades. Antonio Benaiges, the teacher who promised the sea (digging up the silence is the title of the book that tells the whole recovery process of this "memory of life and death", which is as shocking as humanly annd pedagogically instructive.

  15. Asnos, burros, γάιδαροι, όνοι: estudio comparativo de su presencia en los refranes españoles y griegos

    OpenAIRE

    Kioridis, Ioannis

    2008-01-01

    En este artículo, el autor se ocupa de la presencia del asno en los refranes españoles y griegos. Al principio estudia el origen, la estructura y el simbolismo de los refranes griegos. A continuación, clasifica los refranes de ambos idiomas en tres grupos, y los compara. Por último, llega a unas breves conclusiones acerca del papel social de dicho animal, según los refranes citados. In this article the author works on the presence of the donkey in the Spanish and Greek proverbs. At first, ...

  16. De fardos que podem acompanhar a atividade docente ou de como o mestre pode devir burro (ou camelo Of how burdens can be laid on teaching activity or how a teacher can become a donkey (or a camel

    Directory of Open Access Journals (Sweden)

    Sylvio de Sousa Gadelha Costa

    2005-12-01

    Full Text Available O texto explora, desdobra e mesmo força alguns dos traços e contornos ligados ao mal-estar que acompanha os educadores contemporâneos, para depois, em seu desfecho, reconduzir o leitor a uma possível e breve interpretação a partir do "duplo" Deleuze-Nietzsche. O sentido é tornar visíveis alguns processos e sintomas implicados na produção desse mal-estar, bem como a lógica que o anima. Assim, quem sabe, com essa rápida sinalização, este escrito possa dar o que pensar sobre a questão: como fazer da educação um problema, movimentando-a, inquietando-a, abrindo-a a novos possíveis, a novas experimentações e desafios.This paper explores, unfolds and in a sense stretches some of the traces and contours which could be connected to the malaise associated with contemporary educators. It then tries to lead the reader back to a possible and brief interpretation based on the "double" Deleuze-Nietzsche. It is intended to make visible some of the processes and symptoms implied in the production of this malaise, as well as to explicit the logic that gives life to it. These modest hints hope to force us to think about the following question: how can we transform education into a problem? Which, in turn, may put education in motion, disrupt it and open it up to new possibilities, experimentations and challenges.

  17. Biological Resources Survey of Mountain Springs Canyon on the Naval Weapons Center.

    Science.gov (United States)

    1983-03-01

    observed was Feral Burro ( Equus asinus ). Three females (two pregnant) were observed in the bottom portion of the canyon. Several solitary males were...hemionus* Mule Deer Equus asinus Feral Burro *Indirect observation by tracks, seats, nests, burrows. Nomenclature follows that of Jones et al. (1979) s0 NWC

  18. 78 FR 55763 - National Environmental Policy Act; Santa Susana Field Laboratory

    Science.gov (United States)

    2013-09-11

    ... historic property, the Burro Flats Painted Cave, that is listed on the National Register of Historic Places... previous Superfund or Resource Conservation and Recovery Act (RCRA) cleanup processes, NASA originally...

  19. Uranium Mill Tailings Remedial Action Project (UMTRAP), Slick Rock, Colorado, Revision 1. Bid schedule, special conditions, specifications, and subcontract drawings

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-10-01

    This volume contains: bidding requirements; terms and conditions; specifications for Division 1 -- general requirements; specifications for Division 2 -- sitework; specifications for Divisions 5 -- metals; subcontract drawings, (general, Union Carbide processing site, North Continent processing site, and Burro Canyon disposal site).

  20. Sheldon - Fence Inventory and Monitoring

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — In 2013, the USFWS completed a CCP/EIS identifying feral horses and burros as the primary cause of significant adverse impacts to the ecological integrity of the...

  1. Remedial action plan and site design for stabilization of the inactive uranium processing site at Naturita, Colorado. Appendix A of Attachment 3: Calculations, Final

    Energy Technology Data Exchange (ETDEWEB)

    1994-03-01

    This report contains calculations for: hydraulic gradients for Alluvial Aquifer and Salt Wash Aquifer; slug test analysis to determine hydraulic conductivity for Alluvial Aquifer and Salt Wash Aquifer; average linear groundwater velocity for Alluvial Aquifer and Salt Wash Aquifer; statistical analysis of the extent of existing groundwater contamination; hydraulic gradients for Dakota/Burro Canyon Formation and Salt Wash Aquifer; slug test analysis to determine hydraulic conductivity for Dakota/Burro Canyon Formation and Perched Salt Wash Aquifer; determination of hydraulic conductivity of the Dakota/Burro Canyon Formation from Packer Tests; average linear groundwater velocity for Dakota/Burro Canyon and Salt Wash Aquifer; chemical and mineralogical characterization of core samples from the Dry Flats Disposal Site; and demonstration of low groundwater yield from Uppermost Aquifer.

  2. The Grand Canyon and Other Holes in the Ground. Natural Wonder Notebook.

    Science.gov (United States)

    Markle, Sandra

    1983-01-01

    The Grand Canyon, the natural wonder visited most often in the United States, is explored on foot, on burro, and by boat in this article. Learn about the canyon's different rock layers as well as its erosion, plant life, animal life, and water flow. (JM)

  3. 50 CFR 30.11 - Control of feral animals.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 6 2010-10-01 2010-10-01 false Control of feral animals. 30.11 Section 30... (CONTINUED) THE NATIONAL WILDLIFE REFUGE SYSTEM RANGE AND FERAL ANIMAL MANAGEMENT Feral Animals § 30.11 Control of feral animals. (a) Feral animals, including horses, burros, cattle, swine, sheep, goats...

  4. 36 CFR 222.35 - Studies.

    Science.gov (United States)

    2010-07-01

    ... 36 Parks, Forests, and Public Property 2 2010-07-01 2010-07-01 false Studies. 222.35 Section 222.35 Parks, Forests, and Public Property FOREST SERVICE, DEPARTMENT OF AGRICULTURE RANGE MANAGEMENT Management of Wild Free-Roaming Horses and Burros § 222.35 Studies. The Chief, Forest Service, is authorized and directed to undertake those studies of...

  5. 75 FR 4384 - Pesticide Products; Registration Applications

    Science.gov (United States)

    2010-01-27

    ... shown in the registration application summary, by one of the following methods: Federal eRulemaking... 20037. Poduct name: ZonaStat-H. Active ingredient: Contraceptive with Porcine zona pellucida at 0.1%. Proposed use: Contraceptive for the use in limiting populations of wild and feral horses and burros...

  6. Uranium Mill Tailings Remedial Action Project (UMTRAP), Slick Rock, Colorado, Revision 1, Volume 4. Calculations, Final design for construction

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-09-01

    Volume four contains calculations for: Borrow areas--site evaluation; temporary facilities--material quantities; embankment quantities--excavation and cover materials; Burro Canyon site excavation quantities--rippable and unrippable materials; site restoration--earthwork quantities and seeding; and bid schedule quantities and material balance.

  7. Renewal of the Nellis Air Force Range Land Withdrawal, Legislative Environmental Impact Statement. Volume 1. Chapters 1-11

    Science.gov (United States)

    1999-03-01

    will move farther down the slopes during the winter. Wild burros ( Equus asinus ), which escaped or were released periodically over the last 200 years...Pronghorn antelope (Antilocapra americana) and wild horses ( Equus caballus), however, occur predominantly in desert scrub communities found in the North

  8. Determining Home Range and Preferred Habitat of Feral Horses on the Nevada National Security Site Using Geographic Information Systems

    Energy Technology Data Exchange (ETDEWEB)

    Burns, Ashley V. [Univ. of Denver, CO (United States)

    2014-05-30

    Feral horses (Equus caballus) are free-roaming descendants of domesticated horses and legally protected by the Wild and Free-Roaming Horses and Burros Act of 1971, which mandates how feral horses and burros should be managed and protected on federal lands. Using a geographic information system to determine the home range and suitable habitat of feral horses on the federally managed Nevada National Security Site can enable wildlife biologists in making best management practice recommendations. Home range was estimated at 88.1 square kilometers. Site suitability was calculated for elevation, forage, slope, water presence and horse observations. These variables were combined in successive iterations into one polygon. Suitability rankings established that 85 square kilometers are most suitable habitat, with 2,052 square kilometers of good habitat 1,252 square kilometers of fair habitat and 122 square kilometers of least suitable habitat.

  9. Stratigraphy of the Roraima Supergroup along the Brazil-Guyana border in the Guiana shield, Northern Amazonian Craton - results of the Brazil-Guyana Geology and Geodiversity Mapping Project

    Directory of Open Access Journals (Sweden)

    Nelson Joaquim Reis

    Full Text Available ABSTRACT: The Geological and Geodiversity Mapping binational program along the Brazil-Guyana border zone allowed reviewing and integrating the stratigraphy and nomenclature of the Roraima Supergroup along the Pakaraima Sedimentary Block present in northeastern Brazil and western Guyana. The area mapped corresponds to a buffer zone of approximately 25 km in width on both sides of the border, of a region extending along the Maú-Ireng River between Mount Roraima (the triple-border region and Mutum Village in Brazil and Monkey Mountain in Guyana. The south border of the Roraima basin is overlain exclusively by effusive and volcaniclastic rocks of the Surumu Group of Brazil and its correlated equivalent the Burro-Burro Group of Guyana.

  10. Composition, Repellent, and Insecticidal Activities of Two South American Plants against the Stored Grain Pests Tribolium castaneum and Tribolium confusum (Coleoptera: Tenebrionidae)

    OpenAIRE

    Benzi, Verónica; Stefanazzi, Natalia; Murray, Ana Paula; Werdin González, Jorge O.; Ferrero, Adriana

    2014-01-01

    As part of a screening program to evaluate the biological activity of indigenous plants, we report the composition and the bioactivity of essential oils (EOs) extracted from Té de Burro Aloysia polystachya [(Griseb.) Moldenke] and Lemon Verbena Aloysia citriodora [Palau] against two of the most widespread secondary pests of stored products, the red flour beetle Tribolium castaneum [Herbst] and the confused flour beetle Tribolium confusum [Jacqueline du Val]. Analysis by gas chromatography-mas...

  11. Mid-Tertiary magmatism in western Big Bend National Park, Texas, U.S.A.: Evolution of basaltic source regions and generation of peralkaline rhyolite

    Science.gov (United States)

    Parker, Don F.; Ren, Minghua; Adams, David T.; Tsai, Heng; Long, Leon E.

    2012-07-01

    Tertiary magmatism in the Big Bend region of southwestern Texas spanned 47 to 17 Ma and included representatives of all three phases (Early, Main and Late) of the Trans-Pecos magmatic province. Early phase magmatism was manifested in the Alamo Creek Basalt, an alkalic lava series ranging from basalt to benmoreite, and silicic alkalic intrusions of the Christmas Mountains. Main phase magmatism in the late Eocene/early Oligocene produced Bee Mountain Basalt, a lava series ranging from hawaiite and potassic trachybasalt to latite, widespread trachytic lavas of Tule Mountain Trachyte and silicic rocks associated with the Pine Mountain Caldera in the Chisos Mountains. Late main phase magmatism produced trachyte lava and numerous dome complexes of peralkaline Burro Mesa Rhyolite (~ 29 Ma) in western Big Bend National Park. Late stage basaltic magmatism is sparsely represented by a few lavas in the Big Bend Park area, the adjacent Black Gap area and, most notably, in the nearby Bofecillos Mountains, where alkalic basaltic rocks were emplaced as lava and dikes concurrent with active normal faulting. Trace element modeling, Nd isotope ratios and calculated depths of segregation for estimated ancestral basaltic magmas suggest that Alamo Creek basalts (ɛNdt ~ 6.15 to 2.33) were derived from depths (~ 120 to 90 km) near the lithosphere/asthenosphere boundary at temperatures of ~ 1600 to1560 °C, whereas primitive Bee Mountain basalts (ɛNdt ~ 0.285 to - 1.20) may have been segregated at shallower depths (~ 80 to 50 km) and lower temperatures (~ 1520 to 1430 °C) within the continental lithosphere. Nb/La versus Ba/La plots suggest that all were derived from OIB-modified continental lithosphere. Late stage basaltic rocks from the Bofecillos Mountains may indicate a return to source depths and temperatures similar to those calculated for Alamo Creek Basalt primitive magmas. We suggest that a zone of melting ascended into the continental lithosphere during main-phase activity and

  12. Skin healing in one equine by therapy with ozone

    OpenAIRE

    César Augusto Garcia; Duvaldo Eurides; Ricardo Prado Berbert; Matheus Mickael Neves Rodrigues; Siara Mabel Nara Neves; Flávia Cristina Queiroz Rinaldi

    2010-01-01

    Habronema muscae, es un parásito encontrado frecuentemente en caballos, ponis, burros y cebras. La forma adulta del parasito vive en las mucosas con su región cefálica introducida en el tejido. Los huevos son largos y finos y contienen larvas que son liberados en las heridas o en el interior del estómago cuando estas son ingeridas accidentalmente, la madurez es alcanzada en dos meses. El efecto del ozono sobre la piel ocurre por la reacción con los ácidos grasos polyunsaturados y el agua pres...

  13. Remedial action and site design for stabilization of the inactive uranium mill tailings sites at Slick Rock, Colorado. Attachment 3, Groundwater hydrology report

    Energy Technology Data Exchange (ETDEWEB)

    1993-07-01

    The US Environmental Protection Agency (EPA) has established health and environmental protection regulations to correct and prevent groundwater contamination resulting from processing activities at inactive uranium milling sites (EPA, 1987). According to the Uranium Mill Tailings Radiation Control Act (UMTRCA) of 1978 Public Law (PL) 95-604 (PL 95-604), the US Department of Energy (DOE) is responsible for assessing the inactive uranium processing sites. The DOE has determined that for Slick Rock, this assessment shall include hydrogeologic site characterization for two separate uranium processing sites, the Union Carbide (UC) site and the North Continent (NC) site, and for the proposed Burro Canyon disposal site.

  14. Quimeras. Presentación

    Directory of Open Access Journals (Sweden)

    Julio Premat

    2008-07-01

    Full Text Available Si a una cabeza humana,muy peinada a la moda y muy galana,le añadiera un pintor plumas de galloy un pescuezo de burro o de caballo ;si juntando las piezas desigualesde varios animalespor último en el lienzo retratarauna mujer de lindo talle y caracon alas de avestruz o de gallinay cola de merluza o de sardina,¿quién, amigos Pisones,dejara de reírse a borbotones ?Pues a este lienzo semejante fuera,el poema o quimera,cuyas partes sin tino colocadas,no fuesen a una forma conspiradas [...]Félix...

  15. Cuento: El segundo pecado

    Directory of Open Access Journals (Sweden)

    Adel López Gómez

    1967-12-01

    Full Text Available En aquel tiempo ya distante, no era gran cosa el negocillo de Gilberto Ramos. Apenas algo que surgió de sí mismo, por decirlo así. Ni siquiera una pequeña tienda que pudiera llamarse tal. Solo la tarima burda, de cuatro tablas para formaleta, montadas sobre dos burros y tomadas en préstamo, con permiso del maestro de obras, al celador y herramientero de la urbanización en esbozo. Sobre el precario soporte unas botellas de cervezas y gaseosas, cigarrillos, fósforos, y pare usted de contar.

  16. Conservation and protection

    Science.gov (United States)

    Leopold, Luna Bergere

    1960-01-01

    When I was a child we had a burro I called Gacho. He was a typical burro, omnivorous in his eating habits and prone to streaks of extreme recalcitrance.Our yard wasn't very large, but it did produce enough grass and weeds to keep old Gacho in good fettle. His first preference was for the native grasses, and he chose to graze the lush patches rather than the shriveled plants on the areas of thin soil. Nevertheless, he was not particular and seemed to graze to some extent all over the yard. He often nibbled in the flower beds and I sometimes wondered whether he did this just for spite.After a time I arranged some crude fences and a tethering rope to keep him out of the most important flower beds.The yard was so small that we had a waste problem. To ignore the problem would hardly have been civilized, but, on the other hand, one couldn't follow him around all day with a shovel. So a workable compromise was adopted by keeping him penned up at night in a small enclosure, which, of course, could not be kept immaculate but was at least reasonably clean.We had the burro and we weren't getting rid of him. He was useful; we enjoyed riding him and hitching him up to our wagons. But he was a bother sometimes.Here was a simple case of resource use and resource development. The case is incomplete, but it demonstrates a principle.The resource, represented by the vegetation, was being utilized, or developed if you will, by a small juggernaut which was only partly controllable by my youthful skills. There was no need to urge utilization. That followed as a matter of course. The problem was that the one who utilized the resource, in this case the burro, was not very discerning of relative values. To Gacho the choice of which plant to eat and where to get rid of the waste was governed only by his own interests and convenience.Now, when a planning body convenes, one may bet that either the burro has Jain down in a flower bed or he has messed up the yard. By this time everybody is

  17. Produzioni lattiero-casearie in alpeggio: valutazione igienico-sanitaria

    Directory of Open Access Journals (Sweden)

    V. Chirico

    2003-05-01

    Full Text Available

    L’attività di trasformazione del latte in alpeggio costituisce una realtà di notevole interesse sotto il profilo socio-culturale, ambientale ed economico; ai servizi sanitari spetta il compito di assicurare la qualità igienico-sanitaria dei prodotti lattierocaseari (D.P.R. 54/1997.

    Obiettivi: l’Unità Organizzativa Veterinaria della Lombardia ha predisposto (2001 un piano di campionamento di latte e derivati, prodotti negli alpeggi di una vasta area alpina per valutarne la qualità igienico-sanitaria e trarre indicazioni per migliorare la sorveglianza.

    Metodi: é stata programmata la raccolta di almeno 200 campioni per effettuare: • la ricerca di E.coli, coliformi, S.aureus, L.monocytogenes, Salmonella sulle matrici latte crudo, formaggi freschi e stagionati, burro, ricotta; • la determinazione della carica batterica totale, titolo in cellule somatiche, presenza di sostanze inibenti e tenore in grassi, proteine e lattosio sui campioni di latte crudo. I criteri di valutazione dei risultati analitici si sono basati sui limiti legislativi ove esistenti o su valori fissati o in conformità ai riferimenti internazionali disponibili o per analogia con altre matrici paragonabili.

    Risultati: i risultati (572 campioni hanno evidenziato:

    • assenza di germi patogeni in tutti i prodotti;

    • frequente riscontro di carica batterica totale e cellule somatiche fuori limite nei campioni di latte crudo (45,7% e 66%;

    • buona qualità microbiologica dei formaggi;

    • conta superiore al limite fissato per coliformi ed E.coli nella quasi totalità dei campioni di ricotta e burro. La qualità microbiologica del latte crudo non è risultata correlata a quella dei formaggi.

    Conclusioni: si può ipotizzare che la buona qualità dei formaggi ottenuti a partire da latte scadente sia attribuibile per quelli freschi ai trattamenti termici

  18. A Análise do Discurso

    Directory of Open Access Journals (Sweden)

    Amanda Maria Sampaio

    2012-04-01

    Full Text Available O presente artigo analisa a música Melô do Congresso, com  letra de Junior Poli,Luciano Pires e Labi Mendonça. O discurso relata a indiferença dos políticos com a população, todos representados por animais, os políticos pelas vacas e o povo pelo burro, satirizando a propaganda política e a „pós posse‟  desses políticos. A sociedade que cresce cada vez mais consciente do problema em levar até o Planalto políticos incompetentes conformada com a situação.Palavras-chave: letras; linguística; Análise do Discurso; música; discurso; político.

  19. Remedial action and site design for stabilization of the inactive uranium mill tailings sites at Slick Rock, Colorado. Attachment 2, Geology report: Appendix B, Preliminary final

    Energy Technology Data Exchange (ETDEWEB)

    1994-03-01

    Detailed investigations of geologic, geomorphic, and seismic conditions at the Burro Canyon site were conducted by the US Department of Energy (DOE) as a disposal site for the tailings at two processing sites near the Slick Rock, Colorado, post office. The purposes of these studies are basic site characterization and identification of potential geologic hazards that could affect long-term site stability. Subsequent engineering studies (e.g., analyses of hydrologic and liquefaction hazards) used the data developed in these studies. The geomorphic analysis was employed in the design of effective erosion protection. Studies of the regional and local seismotectonic setting, which included a detailed search for possible capable faults within a 65-km radius of the site, provided the basis for seismic design parameters.

  20. Life cycle assessment. Specific indicators for Italy in impact evaluation; Life cycle assessment: sviluppo di indicatori specific per l'Italia per la fase di valutazione d'impatto

    Energy Technology Data Exchange (ETDEWEB)

    Masoni, P. [ENEA, Centro Ricerche Casaccia, S. Maria di Galeria, RM (Italy). Dipt. Energia; Scimia, E. [Bologna Univ., Bologna (Italy)

    1999-07-01

    After a brief recall and a short description of the LCA (life cycle assessment) methodology, the work is focused on the impact assessment step, discussing the state of the art and a critical identification of environmental indicators, of normalization and weighting principles for the different environmental categories specific for Italy. The application methodology to a case study concerning the production of butter by the Consorzio Granterre of Modena (Italy) is also described. [Italian] Il lavoro analizza la fase centrale della metodologia denominata valutazione d'impatto, resentando una rassegna dello stato dell'arte e un'individuazione critica dei possibili indicatori ambientali, di criteri di normalizzazione e di attribuzione di pesi ai diversi temi ambientali specific per l'Italia. Viene descritta l'applicazione ad un caso concreto relativo alla produzione del burro nel consorzio Granterre di Modena.

  1. Baseline risk assessment of ground water contamination at the uranium mill tailings sites near Slick Rock, Colorado

    Energy Technology Data Exchange (ETDEWEB)

    1994-11-01

    This baseline risk assessment of ground water contamination at the uranium mill tailings sites near Slick Rock, Colorado, evaluates potential public health and environmental impacts resulting from ground water contamination at the former North Continent (NC) and Union Carbide (UC) uranium mill processing sites. The tailings at these sites will be placed in a disposal cell at the proposed Burro Canyon, Colorado, site. The US Department of Energy (DOE) anticipates the start of the first phase remedial action by the spring of 1995 under the direction of the DOE`s Uranium Mill Tailings Remedial Action (UMTRA) Project. The second phase of the UMTRA Project will evaluate ground water contamination. This baseline risk assessment is the first site-specific document for these sites under the Ground Water Project. It will help determine the compliance strategy for contaminated ground water at the site. In addition, surface water and sediment are qualitatively evaluated in this report.

  2. Remedial Action Plan and Site design for stabilization of the inactive Uranium Mill Tailings sites at Slick Rock, Colorado: Revision 1. Remedial action selection report, Attachment 2, geology report, Attachment 3, ground water hydrology report, Attachment 4, water resources protection strategy. Final

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-09-01

    The Slick Rock uranium mill tailings sites are located near the small community of Slick Rock, in San Miguel County, Colorado. There are two designated Uranium Mill Tailings Remedial Action (UMTRA) Project sites at Slick Rock: the Union Carbide site and the North Continent site. Both sites are adjacent to the Dolores River. The sites contain former mill building concrete foundations, tailings piles, demolition debris, and areas contaminated by windblown and waterborne radioactive materials. The total estimated volume of contaminated materials is approximately 621,000 cubic yards (475,000 cubic meters). In addition to the contamination at the two processing site areas, 13 vicinity properties were contaminated. Contamination associated with the UC and NC sites has leached into ground water. Pursuant to the requirements of the Uranium Mill Tailings Radiation Control Act (UMTRCA) (42 USC {section}7901 et seq.), the proposed remedial action plan (RAP) will satisfy the final US Environmental Protection Agency (EPA) standards in 40 CFR Part 192 (60 FR 2854) for cleanup, stabilization, and control of the residual radioactive material (RRM) (tailings and other contaminated materials) at the disposal site at Burro Canyon. The requirements for control of the RRM (Subpart A) will be satisfied by the construction of an engineered disposal cell. The proposed remedial action will consist of relocating the uranium mill tailings, contaminated vicinity property materials, demolition debris, and windblown/weaterborne materials to a permanent repository at the Burro Canyon disposal site. The site is approximately 5 road mi (8 km) northeast of the mill sites on land recently transferred to the DOE by the Bureau of Land Management.

  3. Clinical comparative study between the use of lasers and conventional methods of diagnosis and treatment in deciduous teeth with presence of carious lesion; Estudo clinico comparativo entre o uso de lasers e metodos convencionais de diagnostico e tratamento em dentes deciduos da presenca de lesao cariosa

    Energy Technology Data Exchange (ETDEWEB)

    Pulga, Fabiane Galvao

    2001-07-01

    The aim of this work was to evaluate the efficiency of deciduous tooth cavity preparation by the Er:YAG laser in comparison with the conventional burr rotary instrument. Besides, we have used the laser fluorescence technique (DIAGNOdent equipment) for diagnosis and compared it to the usual tactile and visual examination as well as X-ray diagnosis. For this purpose, 20 chronic occlusal carious deciduous molar teeth from children with the ages between 5 to 10 years old were selected. Selection was ma de according to visual inspection, X-ray periapical image and measures of the DIAGNOdent. For treatment the teeth were divided in two groups, 10 to be treated by the Er:YAG laser and 10 with conventional burr. For enamel, the laser energy used was in the interval from 200 to 300 mJ; for the dentine the range was from 100 mJ to 200 mJ. In both cases, the laser frequency was in the range from 2 to 4 Hz. The results have shown that the laser treatment was more accepted by the children than the conventional burro Clinical evaluation of the cavity preparation indicates that the Er:YAG laser treatment is recommend. The DIAGNOdent evaluation method was very effective for diagnosis of carious tissue for initial detection. After successful removal of the carious tissue, confirmed by visual inspection, the DIAGNOdent evaluation method was only effective for the treatment with conventional burro For evaluation of the tooth after cavity preparation with the Er:YAG laser, the measurements oscillate covering the full range of the equipment. Therefore, the use of the DIAGNOdent equipment is indicated only for initial caries diagnosis. (author)

  4. Groundwater, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona—2013–2015

    Science.gov (United States)

    Macy, Jamie P.; Mason, Jon P.

    2017-12-07

    period of record for Burro Spring and Unnamed Spring near Dennehotso, but a decreasing trend was statistically significant (p0.05) since the early 1980s, and there is no increasing or decreasing trend in those data. Concentrations of dissolved solids, chloride, and sulfate at Burro Spring and Unnamed Spring near Dennehotso have varied for the period of record, but there is no increasing or decreasing statistical trend in the data.

  5. Efeito sedativo da romifidina em muares (Equus asinus caballus não domados Sedative effect of romifidine in unmated mules (Equus asinus caballus

    Directory of Open Access Journals (Sweden)

    Geraldo Eleno Silveira Alves

    1999-03-01

    Full Text Available Com o objetivo de verificar a viabilidade do uso da romifidina em muares e avaliar seus efeitos sedativos na espécie, utilizou-se essa droga para contenção farmacológica de burros não domados, submetidos à orquiectomia bilateral. Em uma primeira etapa, visando a verificar sua viabilidade, a romifidina foi aplicada por via intravenosa em oito animais nas doses de 0,04 e 0,08mg/kg. Já na Segunda etapa, compararam-se seus efeitos sedativos após a aplicação, por via intramuscular, das doses de 0,04, 0,08 e 0,12mg/kg, em três grupos de sete animais. Os sinais da sedação induzida pela romifidina foram semelhantes aos já descritos para eqüinos, porém, verificou-se menor intensidade, dentro das doses utilizadas. Apesar da via intravenosa ter produzido efeitos mais intensos, a via intramuscular foi a da escolha devido à facilidade e à segurança da aplicação, sendo a dose de 0,12mg/kg a que produziu melhores resultados. A romifidina foi considerada como uma opção viável para contenção de muares não domados.With the intetion to study the viability of the use and the sedative effects of the romifidine in mules, this drug was used for chemical restraint in untamed burros, that were subjected to bilateral orquiectomy. In a first fase, the viability was investigated in eight animals that were injected intravenously with 0.04 and 0.08mg/kg. In a second fase, the sedative effects were compared in three groups of seven animals that were injected with intramuscular doses of 0.04, 0.08 and 0.12mg/kg. The sedative signs of romifidine in mules were similar with that had been described for equine, however lower intensity were seen with same doses. Indeed the intravenous route produced effects more intense, the facility and safety made the intramuscular route better. By this route the 0.12mg/kg dose was the most efficient. The romifidine provided sedation which might be clinically useful in untamed mules.

  6. Brighty, donkeys and conservation in the Grand Canyon.

    Science.gov (United States)

    Wills, John

    2006-09-01

    The Grand Canyon is a vast place. It is almost incomprehensible in size. And yet it can also seem strangely crowded. Millions of tourists flock to the Grand Canyon in northern Arizona every year. In 1999, almost 5 million people visited, the highest figure in Canyon history. And each one of them expected to see a wild, free and untrammelled landscape. Despite the obvious natural resources, this expectation has proved anything but easy to satisfy. The US National Park Service (NPS), responsible for the management of most large North American parks (along with several historic sites and museums), has struggled to make or keep the canyon "grand". Park rangers have grappled with a multitude of issues during the past century, including automobile congestion, drying of the Colorado River and uranium mining inside the park. Conservation has posed a unique set of challenges. On a fundamental level, "restoring" the Grand Canyon to its "original" wilderness setting has proved intensely problematic. In the field of wildlife management, restoring the Canyon to its pre-Columbian splendour has entailed some tough decisions--none more so than a 1976 plan to eliminate a sizeable population of feral burros (wild donkeys) roaming the preserve, animals classified as exotics by the NPS.

  7. Hydrogeology of the lacustrine system of the eastern margin of the Salar the Atacama (Chile); Hidrogeologia del sistema lagunar del margen este del Salar de Atacama (Chile)

    Energy Technology Data Exchange (ETDEWEB)

    Salas, J.; Guimera, J.; Cornella, O.; Aravena, R.; Guzman, E.; Tore, C.; von Igel, W.; Moreno, R.

    2010-07-01

    A hydrogeological conceptual model of the Eastern margin of the Salar de Atacama (Chile) is proposed taking into account climatic, geological, geomorphological, piezometric, chemical and isotopic data. The study establishes the processes that explain the hydrochemical evolution of waters from salty groundwater in the alluvial aquifer located in eastern part of basin until brines at the saline aquifer of the Salar. The main processes associated with this hydrochemical evolution are evaporation and mixing, but water-crust interaction in the discharge areas of the alluvial aquifer associated with the saline wedge also modifies groundwater composition, and plays a role in the dynamics of the evaporitic crusts in the Salar. The existence of low permeability materials near the surface explains the existence of the permanent surface water bodies in the study area. Based on the data collected in the study three different mechanisms are proposed regarding the main sources of water to the lagoons: (1) discharge of saline groundwater from the detrital and volcanic aquifers of the E margin, (2) discharge of surface waters associated to the N area (Burro Muerto channel), and (3) a combination of both previous mechanisms. (Author).

  8. Radiobiological modeling with MarCell software

    Energy Technology Data Exchange (ETDEWEB)

    Hasan, J.S.; Jones, T.D. [Oak Ridge National Lab., TN (United States). Health Sciences Research Div.

    1999-01-01

    A nonlinear system of differential equations that models the bone marrow cellular kinetics associated with radiation injury, molecular repair, and compensatory cell proliferation has been extensively documented. Recently, that model has been implemented as MarCell, a user-friendly MS-DOS computer program that allows users with little knowledge of the original model to evaluate complex radiation exposure scenarios. The software allows modeling with the following radiations: tritium beta, 100 kVp X, 250 kVp X, 22 MV X, {sup 60}Co, {sup 137}Cs, 2 MeV electrons, triga neutrons, D-T neutrons, and 3 blends of mixed-field fission radiations. The possible cell lineages are stem, stroma, and leukemia/lymphoma, and the available species include mouse, rat, dog, sheep, swine, burro, and man. An attractive mathematical feature is that any protracted protocol can be expressed as an equivalent prompt dose for either the source used or for a reference, such as 250 kVp X rays or {sup 60}Co. Output from MarCell includes: risk of 30-day mortality; risk of cancer and leukemia based either on cytopenia or compensatory cell proliferation; cell survival plots as a function of time or dose; and 4-week recovery kinetics following treatment. In this article, the program`s applicability and ease of use are demonstrated by evaluating a medical total body irradiation protocol and a nuclear fallout scenario.

  9. Adapting to climate change on Western public lands: addressing the ecological effects of domestic, wild, and feral ungulates.

    Science.gov (United States)

    Beschta, Robert L; Donahue, Debra L; DellaSala, Dominick A; Rhodes, Jonathan J; Karr, James R; O'Brien, Mary H; Fleischner, Thomas L; Deacon Williams, Cindy

    2013-02-01

    Climate change affects public land ecosystems and services throughout the American West and these effects are projected to intensify. Even if greenhouse gas emissions are reduced, adaptation strategies for public lands are needed to reduce anthropogenic stressors of terrestrial and aquatic ecosystems and to help native species and ecosystems survive in an altered environment. Historical and contemporary livestock production-the most widespread and long-running commercial use of public lands-can alter vegetation, soils, hydrology, and wildlife species composition and abundances in ways that exacerbate the effects of climate change on these resources. Excess abundance of native ungulates (e.g., deer or elk) and feral horses and burros add to these impacts. Although many of these consequences have been studied for decades, the ongoing and impending effects of ungulates in a changing climate require new management strategies for limiting their threats to the long-term supply of ecosystem services on public lands. Removing or reducing livestock across large areas of public land would alleviate a widely recognized and long-term stressor and make these lands less susceptible to the effects of climate change. Where livestock use continues, or where significant densities of wild or feral ungulates occur, management should carefully document the ecological, social, and economic consequences (both costs and benefits) to better ensure management that minimizes ungulate impacts to plant and animal communities, soils, and water resources. Reestablishing apex predators in large, contiguous areas of public land may help mitigate any adverse ecological effects of wild ungulates.

  10. Nasalance scores of Brazilian Portuguese speakers at 5 years of age.

    Science.gov (United States)

    Oliveira, Débora Natália de; Sampaio-Teixeira, Ana Claudia Martins; Alvarenga, Bianca Gonçalves; Fukushiro, Ana Paula; Yamashita, Renata Paciello; Trindade, Inge Elly Kiemle

    2017-05-22

    To determine nasalance scores of Brazilian Portuguese speaking children without evident speech disorders, language delay and orofacial deformities, at age 5 years, and analyze differences between types of speech samples and genders. Twenty children were analyzed, 11 males, age ranging from 4 years and 10 months to 5 years and 11 months. The Nasometer II 6450 (KayPENTAX) was used for nasalance assessment. Speech samples were eight consonant-vowel syllables and one sequence of nine words. The significance of differences between speech samples and genders were assessed by the Tukey test and Mann-Whitney test, respectively, at a significance level of 5%. Mean nasalance scores were: /pa/= 10±4%, /pi/= 22±7%, /sa/= 11±5%, /si/= 24±11%, /ma/= 57±11%, /mi/= 73±13%, /la/= 14±9%, /li/= 25±11%, words (pipa, bis, burro, tatu, pilha, cuca, gui, fila, luz)= 20±6%. Nasalance scores of nasal syllables were significantly higher than those of oral syllables (with high or neutral vowels) and nasalance scores of oral syllables with high vowels were significantly higher than those of oral syllables with neutral vowels, for the majority of comparisons. There was no difference between genders. Normative nasalance scores for 5-year-old Brazilian children were determined. The methodology can serve as a standard for the early diagnosis of nasality deviations, such as hypernasality observed in cleft palate speech.

  11. Daniel Solano: "Me matan si no trabajo, y si trabajo me matan"

    Directory of Open Access Journals (Sweden)

    Jessica Visotsky

    2015-01-01

    Full Text Available Existe una creencia en el noroeste argentino que es la Leyenda del Familiar, esta leyenda que al parecer surgiría ligada al desarrollo industrial, nace y se desarrolla ligada a la instalación de los ingenios azucareros a fines del siglo XIX y principios del XX. En los mismos se llevó a cabo la explotación de miles y miles de trabajadores bajo condiciones inhumanas de trabajo y salarios miserables. El familiar era el perro del diablo o el diablo mismo, podía también adoptar formas de viborón, toro, burro, por lo general era un perro, negro, desprendía llamaradas de fuego por los ojos, tenía una fuerza descomunal en sus garras, con quién el patrón del ingenio o capataz había hecho un pacto: que saciaría su hambre con la entrega de un obrero por año, y éste le aseguraría prosperidad. En distintas situaciones un obrero podía encontrar la muerte, sea por accidentes, sea cayendo a una caldera, atrapado en una cinta trituradora de la caña, o si un trabajador desaparecía se decía que era obra “del familiar”.

  12. Modeling marrow damage from response data: Morphallaxis from radiation biology to benzene toxicity

    Energy Technology Data Exchange (ETDEWEB)

    Jones, T.D.; Morris, M.D.; Hasan, J.S.

    1995-12-01

    Consensus principles from radiation biology were used to describe a generic set of nonlinear, first-order differential equations for modeling of toxicity-induced compensatory cell kinetics in terms of sublethal injury, repair, direct killing, killing of cells with unrepaired sublethal injury, and repopulation. This cellular model was linked to a probit model of hematopoietic mortality that describes death from infection and/or hemorrhage between {approximately} 5 and 30 days. Mortality data from 27 experiments with 851 doseresponse groups, in which doses were protracted by rate and/or fractionation, were used to simultaneously estimate all rate constants by maximum-likelihood methods. Data used represented 18,940 test animals distributed according to: (mice, 12,827); (rats, 2,925); (sheep, 1,676); (swine, 829); (dogs, 479); and (burros, 204). Although a long-term, repopulating hematopoietic stem cell is ancestral to all lineages needed to restore normal homeostasis, the dose-response data from the protracted irradiations indicate clearly that the particular lineage that is ``critical`` to hematopoietic recovery does not resemble stem-like cells with regard to radiosensitivity and repopulation rates. Instead, the weakest link in the chain of hematopoiesis was found to have an intrinsic radioresistance equal to or greater than stromal cells and to repopulate at the same rates. Model validation has been achieved by predicting the LD{sub 50} and/or fractional group mortality in 38 protracted-dose experiments (rats and mice) that were not used in the fitting of model coefficients.

  13. Adapting to Climate Change on Western Public Lands: Addressing the Ecological Effects of Domestic, Wild, and Feral Ungulates

    Science.gov (United States)

    Beschta, Robert L.; Donahue, Debra L.; DellaSala, Dominick A.; Rhodes, Jonathan J.; Karr, James R.; O'Brien, Mary H.; Fleischner, Thomas L.; Deacon Williams, Cindy

    2013-02-01

    Climate change affects public land ecosystems and services throughout the American West and these effects are projected to intensify. Even if greenhouse gas emissions are reduced, adaptation strategies for public lands are needed to reduce anthropogenic stressors of terrestrial and aquatic ecosystems and to help native species and ecosystems survive in an altered environment. Historical and contemporary livestock production—the most widespread and long-running commercial use of public lands—can alter vegetation, soils, hydrology, and wildlife species composition and abundances in ways that exacerbate the effects of climate change on these resources. Excess abundance of native ungulates (e.g., deer or elk) and feral horses and burros add to these impacts. Although many of these consequences have been studied for decades, the ongoing and impending effects of ungulates in a changing climate require new management strategies for limiting their threats to the long-term supply of ecosystem services on public lands. Removing or reducing livestock across large areas of public land would alleviate a widely recognized and long-term stressor and make these lands less susceptible to the effects of climate change. Where livestock use continues, or where significant densities of wild or feral ungulates occur, management should carefully document the ecological, social, and economic consequences (both costs and benefits) to better ensure management that minimizes ungulate impacts to plant and animal communities, soils, and water resources. Reestablishing apex predators in large, contiguous areas of public land may help mitigate any adverse ecological effects of wild ungulates.

  14. Exploration for uranium deposits in the Atkinson Mesa area, Montrose County, Colorado

    Science.gov (United States)

    Brew, Daniel Allen

    1954-01-01

    The U.S. Geological Survey explored the Atkinson Mesa area for uranium- and vanadium-bearing deposits from July 2, 1951, to June 18, 1953, with 397 diamond-drill holes that totaled 261,251 feet. Sedimentary rocks of Mesozoic age are exposed in the Atkinson Mesa area. They are: the Brushy Basin member of the Upper Jurassic Morrison formation, the Lower Cretaceous Burro Canyon formation, and the Upper and Lower Cretaceous Dakota sandstone. All of the large uranium-vanadium deposits discovered by Geological Survey drilling are in a series of sandstone lenses in the upper part of the Salt Wash member of the Jurassic Morrison formation. The deposits are mainly tabular and blanket-like, but some elongate pod-shaped masses, locally called "rolls" may be present. The mineralized material consists of sandstone impregnated with a uranium mineral which is probably coffinite, spme carnotite, and vanadium minerals, thought to be mainly corvusite and montroseite. In addition,, some mudstone and carbonaceous material is similarly impregnated. Near masses of mineralized material the sandstone is light gray or light brown, is generally over 40 feet thick, and usually contains some carbonaceous material and abundant disseminated pyrite or limonite stain. Similarly, the mudstone in contact with the ore-bearing sandstone near bodies of mineralized rock is commonly blue gray, as compared to its dominant red color away from ore deposits. Presence and degree of these features are useful guides in exploring for new deposits.

  15. Coberturas do solo e crescimento da macieira na implantação de um pomar em sistema orgânico de produção Soil coverage and apple tree growth on the establishment of an orchard under organic production system

    Directory of Open Access Journals (Sweden)

    Tânia Regina Pelizza

    2009-09-01

    Full Text Available O uso de coberturas é uma estratégia de manejo do solo que pode influenciar no desenvolvimento de plantas de espécies frutíferas. O objetivo deste trabalho foi avaliar o crescimento da macieira, na fase de implantação de um pomar, em resposta ao uso de diferentes materiais e plantas de cobertura de solo. O pomar foi implantado em 2003, em Vacaria-RS, com a cv. Galaxy, sendo conduzido no sistema de produção orgânico. O delineamento experimental foi em blocos ao acaso, com três repetições, envolvendo os seguintes tratamentos nas linhas de plantio: testemunha (sem manejo da cobertura do solo, capina, plástico preto, sombrite, serragem de pínus, acícula de pínus, palha de capim-rabo-de-burro, azevém, aveia-preta, aveia-preta + ervilhaca, aveia-preta + nabo-forrageiro, azevém + trevo-branco + espécies espontâneas e roçada. A cobertura do solo por plantas espontâneas foi avaliada mensalmente no período de primavera-verão, durante dois anos, sendo relacionada com o desenvolvimento da macieira. Os tratamentos capina, plástico preto, acícula de pínus e palha de capim-rabo-de-burro mantiveram a cobertura do solo por plantas espontâneas inferior a 20 %. A altura e o diâmetro das plantas de macieira diminuíram à medida que aumentou a cobertura do solo por plantas espontâneas, evidenciando competição entre ambas.Soil cover is one of the options for weed management in the orchard but this might affect fruit trees development. The objective of this work was to evaluate apple trees growth during the orchard establishment stage by using different materials and soil cover plants. The experimental apple orchard was planted in 2003, in Vacaria, RS, Southern of Brazil, with the cv. Galaxy managed under organic system. The experiment followed the randomized block design, with three replications. The treatments were applied in the tree rows, as follows: control (without weed management, manual weeding, black plastic film, black net

  16. Geologic map of the Grand Junction Quadrangle, Mesa County, Colorado

    Science.gov (United States)

    Scott, Robert B.; Carrara, Paul E.; Hood, William C.; Murray, Kyle E.

    2002-01-01

    This 1:24,000-scale geologic map of the Grand Junction 7.5' quadrangle, in support of the USGS Western Colorado I-70 Corridor Cooperative Geologic Mapping Project, provides new interpretations of the stratigraphy, structure, and geologic hazards in the area of the junction of the Colorado River and the Gunnison River. Bedrock strata include the Upper Cretaceous Mancos Shale through the Lower Jurassic Wingate Sandstone units. Below the Mancos Shale, which floors the Grand Valley, the Upper and Lower(?)Cretaceous Dakota Formation and the Lower Cretaceous Burro Canyon Formation hold up much of the resistant northeast- dipping monocline along the northeast side of the Uncompahgre uplift. The impressive sequence of Jurassic strata below include the Brushy Basin, Salt Wash, and Tidwell Members of the Upper Jurassic Morrison Formation, the Middle Jurassic Wanakah Formation and informal 'board beds' unit and Slick Rock Member of the Entrada Formation, and the Lower Jurassic Kayenta Formation and Wingate Sandstone. The Upper Triassic Chinle Formation and Early Proterozoic meta-igneous gneiss and migmatitic meta- sedimentary rocks, which are exposed in the Colorado National Monument quadrangle to the west, do not crop out here. The monoclinal dip slope of the northeastern margin of the Uncompahgre uplift is apparently a Laramide structural feature. Unlike the southwest-dipping, high-angle reverse faults in the Proterozoic basement and s-shaped fault- propagation folds in the overlying strata found in the Colorado National Monument 7.5' quadrangle along the front of the uplift to the west, the monocline in the map area is unbroken except at two localities. One locality displays a small asymmetrical graben that drops strata to the southwest. This faulted character of the structure dies out to the northwest into an asymmetric fault-propagation fold that also drops strata to the southwest. Probably both parts of this structure are underlain by a northeast-dipping high

  17. Potential environmental effects of pack stock on meadow ecosystems of the Sierra Nevada, USA

    Science.gov (United States)

    Ostoja, Steven M.; Brooks, Matthew L.; Moore, Peggy E.; Berlow, Eric L.; Robert Blank,; Roche, Jim; Chase, Jennifer T.; Sylvia Haultain,

    2014-01-01

    Pack and saddle stock, including, but not limited to domesticated horses, mules, and burros, are used to support commercial, private and administrative activities in the Sierra Nevada. The use of pack stock has become a contentious and litigious issue for land management agencies in the region inter alia due to concerns over effects on the environment. The potential environmental effects of pack stock on Sierra Nevada meadow ecosystems are reviewed and it is concluded that the use of pack stock has the potential to influence the following: (1) water nutrient dynamics, sedimentation, temperature, and microbial pathogen content; (2) soil chemistry, nutrient cycling, soil compaction and hydrology; (3) plant individuals, populations and community dynamics, non-native invasive species, and encroachment of woody species; and (4) wildlife individuals, populations and communities. It is considered from currently available information that management objectives of pack stock should include the following: minimise bare ground, maximise plant cover, maintain species composition of native plants, minimise trampling, especially on wet soils and stream banks, and minimise direct urination and defecation by pack stock into water. However, incomplete documentation of patterns of pack stock use and limited past research limits current understanding of the effects of pack stock, especially their effects on water, soils and wildlife. To improve management of pack stock in this region, research is needed on linking measurable monitoring variables (e.g. plant cover) with environmental relevancy (e.g. soil erosion processes, wildlife habitat use), and identifying specific environmental thresholds of degradation along gradients of pack stock use in Sierra Nevada meadows.

  18. Los huevos en La Colmena

    Directory of Open Access Journals (Sweden)

    José Molina

    2014-10-01

    Full Text Available Las lenguas proponen interesantes juegos de recepción. En el español de nuestro país, por ejemplo, con la palabra ‘huevos’ nos referimos a los genitales masculinos, mientras que en italiano se trata del título del libro de poemas de Elisa Biagini (Florencia, Italia, 1970. Lo interesante surge cuando nos enteramos de que ‘huevo’ en italiano es masculino al singular y femenino al plural. El poemario de Biagini juega con esa transición de géneros. En el tantas veces atacado ‘horizonte masculino’ de la poesía italiana nace esta voz que llena de intenciones las imágenes. No hay referencias directas, sino el gesto hábil que sólo la poesía puede producir en el juego de la palabra. Biagini propone combatir la discursividad masculina de su tradición desde la dispersión de su voz: elabora figuras femeninas que aman hombres y mujeres, que son niñas, amantes y madres, sin necesidad de renunciar a la perversidad y al humor. El ejemplo más claro de esto es el poema “Feminist icon”, donde la misma mano que acaba de masturbarse hace la señal de la cruz entre el cuerpo y un burro de planchar. Biagini ha publicado tres libros de poemas: Questi nodi (Florencia, Gazebo, 1993, Uova (Génova, Zona, 1999 y l’ospite (Torino, Einaudi, 2004. Los poemas aquí traducidos fueron tomados de una antología personal.

  19. Evaluating potential overlap between pack stock and Sierra Nevada bighorn sheep (Ovis canadensis sierrae) in Sequoia and Kings Canyon National Parks, California

    Science.gov (United States)

    Klinger, Robert C.; Few, Alexandra P.; Knox, Kathleen A.; Hatfield, Brian E.; Clark, Jonathan; German, David W.; Stephenson, Thomas R.

    2015-01-01

    Pack stock (horses, mules, burros, llamas, and goats) are frequently assumed to have negative effects on public lands, but there is a general lack of data to be able to quantify the degree to which this is actually the case. Sequoia and Kings Canyon National Parks have received complaints that pack stock may affect Sierra Nevada bighorn sheep (Ovis canadensis sierrae; SNBS), a federally endangered subspecies that occurs in largely disjunct herds in the Sierra Nevada Range of California. The potential effects are thought to be displacement of SNBS from meadows on their summer range (altered habitat use) or, more indirectly, through changes in SNBS habitat or forage quality. Our goals were to conduct an association analysis to quantify the degree of potential spatial overlap in meadow use between SNBS and pack stock and to compare differences in vegetation community composition, structure, and diversity among meadows with different levels of use by bighorn sheep and pack stock. For the association analysis, we used two approaches: (1) we quantified the proportion of meadows that were within the herd home ranges of bighorn sheep and were potentially open to pack stock, and, (2) we used Monte Carlo simulations and use-availability analyses to compare the proportion of meadows used by bighorn sheep relative to the proportional occurrence or area of meadows available to bighorn sheep that were used by pack stock. To evaluate potential effects of pack stock on meadow plant communities and SNBS forage, we sampled vegetation in 2011 and 2012 at 100 plots to generate data that allowed us to compare:

  20. Multi-scale responses of soil stability and invasive plants to removal of non-native grazers from an arid conservation reserve

    Science.gov (United States)

    Beever, Erik A.; Huso, Manuela M. P.; Pyke, David A.

    2006-01-01

    Disturbances and ecosystem recovery from disturbance both involve numerous processes that operate on multiple spatial and temporal scales. Few studies have investigated how gradients of disturbance intensity and ecosystem responses are distributed across multiple spatial resolutions and also how this relationship changes through time during recovery. We investigated how cover of non-native species and soil-aggregate stability (a measure of vulnerability to erosion by water) in surface and subsurface soils varied spatially during grazing by burros and cattle and whether patterns in these variables changed after grazer removal from Mojave National Preserve, California, USA. We compared distance from water and number of ungulate defecations — metrics of longer-term and recent grazing intensity, respectively, — as predictors of our response variables. We used information-theoretic analyses to compare hierarchical linear models that accounted for important covariates and allowed for interannual variation in the disturbance–response relationship at local and landscape scales. Soil stability was greater under perennial vegetation than in bare interspaces, and surface soil stability decreased with increasing numbers of ungulate defecations. Stability of surface samples was more affected by time since removal of grazers than was stability of subsurface samples, and subsurface soil stability in bare spaces was not related to grazing intensity, time since removal, or any of our other predictors. In the high rainfall year (2003) after cattle had been removed for 1–2 years, cover of all non-native plants averaged nine times higher than in the low-rainfall year (2002). Given the heterogeneity in distribution of large-herbivore impacts that we observed at several resolutions, hierarchical analyses provided a more complete understanding of the spatial and temporal complexities of disturbance and recovery processes in arid ecosystems.

  1. Multiscale responses of soil stability and invasive plants to removal of non-native grazers from an arid conservation reserve

    Science.gov (United States)

    Beever, E.A.; Huso, M.; Pyke, D.A.

    2006-01-01

    Disturbances and ecosystem recovery from disturbance both involve numerous processes that operate on multiple spatial and temporal scales. Few studies have investigated how gradients of disturbance intensity and ecosystem responses are distributed across multiple spatial resolutions and also how this relationship changes through time during recovery. We investigated how cover of non-native species and soil-aggregate stability (a measure of vulnerability to erosion by water) in surface and subsurface soils varied spatially during grazing by burros and cattle and whether patterns in these variables changed after grazer removal from Mojave National Preserve, California, USA. We compared distance from water and number of ungulate defecations - metrics of longer-term and recent grazing intensity, respectively, - as predictors of our response variables. We used information-theoretic analyses to compare hierarchical linear models that accounted for important covariates and allowed for interannual variation in the disturbance-response relationship at local and landscape scales. Soil stability was greater under perennial vegetation than in bare interspaces, and surface soil stability decreased with increasing numbers of ungulate defecations. Stability of surface samples was more affected by time since removal of grazers than was stability of subsurface samples, and subsurface soil stability in bare spaces was not related to grazing intensity, time since removal, or any of our other predictors. In the high rainfall year (2003) after cattle had been removed for 1-2 years, cover of all non-native plants averaged nine times higher than in the low-rainfall year (2002). Given the heterogeneity in distribution of large-herbivore impacts that we observed at several resolutions, hierarchical analyses provided a more complete understanding of the spatial and temporal complexities of disturbance and recovery processes in arid ecosystems. ?? 2006 Blackwell Publishing Ltd.

  2. Disentangling the role of hybridization in the evolution of the endangered Arizona cliffrose (Purshia subintegra; Rosaceae): A molecular and morphological analysis

    Science.gov (United States)

    Travis, S.E.; Baggs, J.E.; Maschinski, J.

    2008-01-01

    Hybridization may threaten the conservation status of rare species through genetic assimilation and may confound the ability to distinguish among taxa. We studied these issues in an endangered shrub, Purshia subintegra (Rosaceae), known from four populations growing on limestone outcrops in central Arizona (USA). Using amplified fragment length polymorphisms (AFLP) and the Bayesian clustering algorithm implemented in STRUCTURE, we identified three distinct genetic lineages among Arizona Purshia subintegra and P. stansburiana. An initial split divided San Carlos Basin P. subintegra (considered P. pinkavae by Schaack) from northern P. stansburiana populations (FST = 0.394). A subsequent split separated northern P. stansburiana from two P. subintegra populations at Horseshoe Lake and Burro Creek (FST = 0.207), which comprised a nearly perfect admixture of the two lineages identified in the initial analysis. In the Verde River Valley P. subintegra is sympatric with P. stansburiana and exhibited an average 27% P. stansburiana genes for 5 of 6 stands analyzed, indicating ongoing hybridization and backcrossing with P. subintegra. Individuals carrying >90% P. subintegra markers are identifiable 68% of the time based on morphology, with leaf lobing, leaf size, and leaf length acting as the most reliable indicators of taxonomic status. However, the genetic and morphological distance correlation among individuals was low (r = 0.17, P = 0.0002), indicating that morphology cannot always accurately predict genetic admixture or taxonomy. Overall, our study confirmed the genetic distinctiveness of the San Carlos Basin population, an ancient natural hybrid origin of P. subintegra, and the presence of a hybrid swarm in the Verde Valley, whose conservation value may lie in its heightened genetic diversity. ?? 2007 Springer Science+Business Media B.V.

  3. Characterization of Dosimetry of the Bmrr Horizontal Thimble Tubes and Broad Beam Facility

    Science.gov (United States)

    Hu, F. J.-P.; Reciniello, R. N.; Holden, N. E.

    2009-08-01

    The Brookhaven Medical Research Reactor was a 5 mega-watts, light-water cooled and heavy-graphite moderated research facility. It has two shutter-equipped treatment rooms, three horizontally extended thimble tubes, and an ex-core broad beam facility. The three experimental thimbles, or activation ports, external to the reactor tank were designed for several uses, including the investigations on diagnostic and therapeutic methods using radioactive isotopes of very short half-life, the analysis of radiation exposure on tissue-equivalent materials using a collimated neutron beam, and the evaluation of dose effects on biological cells to improve medical treatment. At the broad beam facility where the distribution of thermal neutrons was essentially uniform, a wide variety of mammalian whole-body exposures were studied using animals such as burros or mice. Also studied at the broad beam were whole-body phantom experiments, involving the use of a neutron or photon beam streaming through a screen to obtain the flux spectrum suitable for dose analysis on the sugar-urea-water mixture, a tissue-equivalent material. Calculations of the flux and the dose at beam ports based on Monte Carlo particle-transport code were performed, using ENDF/B-V and B-VI continuous neutron cross section data libraries which include thermal neutron treatment data sets. Measurements conducted at the same tally locations were also performed using bare or cadmium-covered gold foils. Computational results of the flux and dose obtained from neutron-photon coupled code runs show good agreement with measured data when statistical uncertainty is ≤5% from code outputs. Detailed dosimetry performed is presented in the paper.

  4. Proposed mechanism(s) of transitory ischemic injury to myocardium

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, M.D.; Kelman, B.J.

    1979-01-01

    The main objective of this study was to produce primary acute ischemic injury to myocardium in a live animal. In vitro, guinea pig platelets were sensitive to perturbation and aggregation by a suspension of ultrafine fibrillary collagen material isolated from the aorta of an aged burro (Equus asinus). The platelets responded to this material down to 100 to 200 ng (dry weight) added to 0.45 ml of platelet-rich plasma, as determined by aggregometric technique. Aortic fibrillary collagen material injected IV into guinea pigs circulating platelets within 5 minutes. In blood samples taken 2.5 hours after injection, 50 to 75% of control levels of platelets were found. In other experiments, 3 anesthetized animals were injected by jugular vein with active fibrillary collagen material. Two control animals were injected with the same dose of the material that had been inactivated (15 minutes at 100 C). Intraventricular pressures and electrocardiographs (ECG) were monitored continuously for the first 30 minutes. The injection of the active fibrillary collagen material caused a large ventricular pressure elevation in approximately 40 s. Within 60 s, there was a reduction in the absolute platelet number in the peripheral circulation. The elevation of ventricular pressure persisted for approximately 5 minutes and was followed within 30 minutes by a set of ECG events suggestive of acute myocardial ischemic injury. The ECG changes seemed to be subsequent to platelet microthrombus formation in the pulmonary arterial microcirculation. By 2.5 hours after the treatment, platelets rebounded into the circulation in 2 surviving guinea pigs, and left ventricular pressures and ECG profiles returned to the preinfusion base lines. Guinea pigs IV infused with similar amounts of inactivated fibrillary collagen material did not show changes.

  5. Cambios en la orientación productiva en el Garbanzo, Irapuato, Guanajuato, México. ¿De chiveros a porcicultores?

    Directory of Open Access Journals (Sweden)

    Randy Alexis Jiménez Jiménez

    2017-06-01

    Full Text Available La orientación productiva se entiende como las características fundadas en la historia y configuración social y cultural que se distinguen en un contexto regional. En las últimas décadas, por las reformas estructurales en el sector agropecuario y por procesos de intervenciones externas del desarrollo, algunas regiones han modificado su orientación productiva. El objetivo de este artículo es mostrar las tendencias de cambio en la producción animal de la comunidad el Garbanzo, Irapuato, Guanajuato, México, con el fin de ayudar a comprender la dinámica productiva y la influencia de la intervención externa en el contexto local. Para identificar los cambios en la producción animal se realizaron dos estudios transversales, en 2012 y 2015. En ambos estudios se realizaron censos de la población animal y se utilizaron guías de diálogo y observación participante, los cuales abordaron temas como: genética, reproducción, alimentación, manejo, sanidad y aspectos socioeconómicos de las familias. Los resultados mostraron que en este periodo de tiempo la población de cabras se redujo en 28 %, esta tendencia también se observó en el número de caballos y burros. Caso contrario ocurrió con la población de cerdos y bovinos, que incrementaron al 400% y 90%, respectivamente. Debido a los procesos de intervención, los pobladores han cambiado algunos hábitos en relación a la medicina preventiva e higiene animal. Los motivos de estos cambios tienen que ver con la estructura y la edad de los miembros de la familia, lo cual influye en tener una especie menos o más productiva y comercializable.

  6. Livestock and poultry density and childhood cancer incidence in nine states in the USA.

    Science.gov (United States)

    Booth, Benjamin J; Jones, Rena R; Turyk, Mary E; Freels, Sally; Patel, Deven M; Stayner, Leslie T; Ward, Mary H

    2017-11-01

    Parental occupational and childhood exposures to farm animals have been positively associated with childhood brain tumors, whereas associations with childhood leukemia are equivocal. The developing immune system may be influenced by allergen, virus, or other exposures from animal sources, which may contribute to childhood cancer incidence. Incident cancers (acute lymphoblastic leukemia [ALL], acute myeloid leukemia [AML], central nervous system [CNS], peripheral nervous system [PNS]) for children aged 0-4 diagnosed between 2003 and 2008 were obtained from nine National Cancer Institute Surveillance, Epidemiology and End Results (SEER) registries and were linked to U.S. Census of Agriculture data from 2002 and 2007 by county of diagnosis. Animal densities (animal units [AU]/km2; one animal unit is 1000 pounds of animal weight) were estimated for hogs, cattle, chickens (layers and broilers, separately), equine (horses, ponies, mules, burros, donkeys), goats, sheep, turkeys, and total animals. Animal density was examined in models as both continuous (AU per km2) and categorical variables (quartiles). Animal operation densities (per km2) by size of operation (cattle, hogs, chickens, sheep) were modeled continuously. Rate ratios and 95% confidence intervals were estimated using Poisson regression. We found positive associations between AML and broiler chicken densities (RRper 10AU/km2 = 1.14, 95% CI = 1.02-1.26). ALL rates increased with densities of hog operations (RRper operation/100km2 = 1.06, 95% CI = 1.02-1.11). PNS cancer rates were inversely associated with layer chicken density (RRper log of AU/km2 = 0.94, 95% CI = 0.89-0.99). No association was found between any cancer type and densities of cattle, equine, or goats. Although limited by the ecologic study design, some of our findings are novel and should be examined in epidemiological studies with individual level data. Published by Elsevier Inc.

  7. California State Waters Map Series: offshore of Santa Barbara, California

    Science.gov (United States)

    Johnson, Samuel Y.; Dartnell, Peter; Cochrane, Guy R.; Golden, Nadine E.; Phillips, Eleyne L.; Ritchie, Andrew C.; Greene, H. Gary; Krigsman, Lisa M.; Kvitek, Rikk G.; Dieter, Bryan E.; Endris, Charles A.; Seitz, Gordon G.; Sliter, Ray W.; Erdey, Mercedes D.; Gutierrez, Carlos I.; Wong, Florence L.; Yoklavich, Mary M.; Draut, Amy E.; Hart, Patrick E.; Conrad, James E.; Cochran, Susan A.; Johnson, Samuel Y.; Cochran, Susan A.

    2013-01-01

    utilized Santa Barbara coastal zone, including Arroyo Burro Beach Park, Leadbetter Beach, East Beach, and “Butterfly Beach.” There are ongoing coastal erosion problems associated with both development and natural processes; between 1933–1934 and 1998, cliff erosion in the map area occurred at rates of about 0.1 to 1 m/yr, the largest amount (63 m) occurring at Arroyo Burro in the western part of the map area. In addition, development of the Santa Barbara Harbor, which began in 1928, lead to shoaling west of the harbor as the initial breakwater trapped sand, as well as to coastal erosion east of the harbor. Since 1959, annual harbor dredging has mitigated at least some of the downcoast erosion problems. The Offshore of Santa Barbara map area lies in the central part of the Santa Barbara littoral cell, which is characterized by littoral drift to the east-southeast. Drift rates have been estimated to be about 400,000 tons/yr at Santa Barbara Harbor. Sediment supply to the western and central parts of the littoral cell, including the map area, is largely from relatively small transverse coastal watersheds. Within the map area, these coastal watersheds include (from east to west) San Ysidro Creek, Oak Creek, Montecito Creek, Sycamore Creek, Mission Creek, Arroyo Burro, and Atascadero Creek. The Ventura and Santa Clara Rivers, the mouths of which are about 40 to 50 km southeast of Santa Barbara, are much larger sediment sources. Still farther east, eastward-moving sediment in the littoral cell is trapped by Hueneme and Mugu Canyons and then transported to the deep-water Santa Monica Basin. The offshore part of the map area consists of a relatively flat and shallow continental shelf, which dips gently seaward (about 0.4° to 0.8°) so that water depths at the 3-nautical-mile limit of California’s State Waters are about 45 m in the east and about 75 m in the west. This part of the Santa Barbara Channel is relatively well protected from large Pacific swells from the north

  8. FACTORES QUE INFLUYEN EN EL BIENESTAR SOCIAL DE LOS HOGARES DE LAS COMUNIDADES OAXAQUEÑAS

    Directory of Open Access Journals (Sweden)

    Anselmo Arellanes Meixueiro

    2013-06-01

    Full Text Available Esta investigación fue realizada en dos comunidades del estado de Oaxaca, San Ildefonso Sola y San Miguel Achiutla, ubicadas en dos regiones distintas de esta entidad, la primera perteneciente a la Región Sierra Sur y la segunda a la Mixteca. Ambas comunidades son consideradas como pobres y marginadas según datos oficiales, presentan diversas carencias materiales que influyen negativamente en su bienestar. Esta mala condición ha prevalecido en los hogares de ambas comunidades a pesar del esfuerzo de los pobladores por superarla, ya que realizan diversas actividades con el fin de obtener recursos suficientes para satisfacen sus necesidades, sin embargo cuentan con recursos muy limitados que les impide potencializar sus resultados. Dentro de las actividades que realizan son agricultura de subsistencia, venta de productos de palma, pan, tortillas, mezcal (estas actividades se han realizado en las comunidades de manera tradicional, han sido heredadas de generación en generación, productos de traspatio (la mayoría de los hogares cultivan frutas o verduras de uso diario en la cocina o para remedios caseros, también crían animales que contribuyen en sus actividades como burros, mulas, caballos o bueyes, y otros que les proporcionan alimentos o son alimento como gallinas, cerdos, chivos, borregos, etc. y comercialización de productos de abarrotes, en pocos casos realizan algún tipo de trabajo asalariado. Adicionalmente, la mayoría de los hogares también reciben apoyo de programas sociales, los cuales coordinados por la secretaría de Desarrollo Social (SEDESOL, buscan contribuir en la superación de la pobreza, los cuales les proporcionan recursos complementarios. Los casos anteriores, también van vinculados fuertemente con otros elementos, como son las características sociodemográficas de los hogares, los cuales se ha probado influyen en el nivel de bienestar social de los hogares en estudio. Por tanto, el propósito de la investigaci

  9. Preliminary Assessment for CAU 485: Cactus Spring Ranch Pu and DU Site CAS No. TA-39-001-TAGR: Soil Contamination, Tonopah Test Range, Nevada

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-07-01

    Corrective Action Unit 485, Corrective Action Site TA-39-001-TAGR, the Cactus Spring Ranch Soil Contamination Area, is located approximately six miles southwest of the Area 3 Compound at the eastern mouth of Sleeping Column Canyon in the Cactus Range on the Tonopah Test Range. This site was used in conjunction with animal studies involving the biological effects of radionuclides (specifically plutonium) associated with Operation Roofer Coaster. The location had been used as a ranch by private citizens prior to government control of the area. According to historical records, Operation Roofer Coaster activities involved assessing the inhalation uptake of plutonium in animals from the nonnuclear detonation of nuclear weapons. Operation Roofer Coaster consisted of four nonnuclear destruction tests of a nuclear device. The four tests all took place during May and June 1963 and consisted of Double Tracks and Clean Slate 1, 11, and 111. Eighty-four dogs, 84 burros, and 136 sheep were used for the Double Tracks test, and ten sheep and ten dogs were used for Clean Slate 11. These animals were housed at Cactus Spring Ranch. Before detonation, all animals were placed in cages and transported to the field. After the shot, they were taken to the decontamination area where some may have been sacrificed immediately. All animals, including those sacrificed, were returned to Cactus Spring Ranch at this point to have autopsies performed or to await being sacrificed at a later date. A description of the Cactus Spring Ranch activities found in project files indicates the ranch was used solely for the purpose of the Roofer Coaster tests and bioaccumulation studies and was never used for any other project. No decontamination or cleanup had been conducted at Cactus Spring Ranch prior to the start of the project. When the project was complete, the pits at Cactus Spring Ranch were filled with soil, and trailers where dogs were housed and animal autopsies had been performed were removed

  10. The Walsh Family Resilience Questionnaire: the Italian version

    Directory of Open Access Journals (Sweden)

    Rocchi S

    2017-12-01

    Full Text Available Silvana Rocchi,1 Claudio Ghidelli,2 Roberto Burro,3 Michele Vitacca,4 Simonetta Scalvini,5 Anna Maria Della Vedova,6 Gianmarco Roselli,7 Jean-Pierre Ramponi,8 Giorgio Bertolotti9 1Psychology Service, ICS Maugeri Spa SB, Institute of Lumezzane, 2Psychological Counselling Service, Università Cattolica del Sacro Cuore, Brescia, 3Department of Human Sciences, University of Verona, Verona, 4Respiratory Rehabilitation Division, 5Cardiac Rehabilitation Division, ICS Maugeri Spa SB, Institute of Lumezzane, 6Department of Clinical and Experimental Sciences, University of Brescia, 7Department of Mental Health, Spedali Civili, 8ICS Maugeri Spa SB, Institute of Lumezzane, Brescia, 9Psychology Unit, ICS Maugeri Spa SB, Institute of Tradate, Varese, Italy Background: Resilience focuses on strength under stress, in the context of adversity. Walsh’s theoretical model identifies relational processes that allow families to tackle and overcome critical situations, dividing them into three domains of family function. The aim of this study was to assess resilience in families of patients with a chronic disease by adapting and validating the Italian version of the Walsh Family Resilience Questionnaire (Walsh-IT. Patients and methods: An Italian adult sample of 421 participants (patients and relatives was collected with the aim to assess the reliability and validity of the Walsh-IT. Concurrent validity was carried out by comparing this instrument with the Family Adaptability and Cohesion Evaluation Scale III (FACES III administered at the same time as the Walsh-IT. Results: Reliability showed high correlation between repeated measurements. The alpha coefficient was 0.946. Both parallel analysis and minimum average partial criteria suggested that the best number of domains is equal to 3, explaining 50.4% of the total variance. Based on the results obtained from the Rasch analysis, items 10, 11, 16, 22, and 23 have been removed resulting in a short-form questionnaire

  11. Effect of time and weather on preference, frequency, and duration of shade use by horses.

    Science.gov (United States)

    Holcomb, K E; Stull, C L

    2016-04-01

    The Federation of Animal Science Societies (FASS) recommends providing access to shade for horses in hot, sunny weather at equine facilities. Previously, we found that healthy, mature domestic horses use shade with behavioral and physiological benefits during those weather conditions. The objective of this study was to characterize preference, frequency, and duration of shade use by healthy, mature horses in a Bureau of Land Management (BLM) holding facility during hot, sunny weather. The study took place at the BLM's Palomino Valley Wild Horse and Burro Center in Reno, NV, from Aug. 10 to Oct. 1, 2014. Freestanding shade structures were constructed in each of 2 drylot pens with shade cloth covering the top that blocked 98% of UV radiation. A group of 4 mares was placed in each of the 2 pens. After a 2-d acclimation period, data were recorded for 5 d, the horses were moved to the opposite pen, and data collected for an additional 5 d. This schedule was repeated for a total of 4 consecutive trials and 32 horses. Footage from time-lapse cameras was viewed at 10 s intervals between 0930 and 1700 h to record each horse's position relative to shade. Dosimeters secured to horses' halters recorded UV exposure. Automated weather stations recorded daytime ambient temperature (mean 25.9°C [SD 5.8]), relative humidity (mean 25.4% [SD 17.1]), black globe temperature (mean 29.3°C [SD 6.5] in shade and 35.8°C [SD 8.0] in unshaded area), and solar radiation (mean 595 W/m [SD 235]). Horses spent 10.9% more time in shade than by chance ( horse (SD 66.9), comprising 17.1 bouts (SD 12.1) with an average bout length of 6.3 min (SD 3.4). The mean daily UV Index experienced by horses in these partially shaded drylots was 1.52 (SD 0.58) compared with 3.4 (SD 1.5) for a control instrument in the sun. Horses used shade more on the sunniest days and greater than just by chance at all hours of the day, with greatest use in the morning before peak ambient temperature. This study supports

  12. Pesquisa exploratória da violência psicológica por meio da linguagem

    Directory of Open Access Journals (Sweden)

    Adelma Pimentel

    2014-03-01

    Full Text Available A violência linguística e comunicativa é uma modalidade de violência psicológica. Qual(is a(s fronteira(s/diferença(s entre “brincar” e promover violência psicológica por meio da linguagem verbal? Quais palavras são usadas para agenciar desqualificação subjetiva do sujeito e quais os conteúdos violentos empregados para causar efeitos sociais que deterioram a vida familiar e pública? São questões de nosso interesse. Neste texto, o escopo foi examinar alguns nexos entre linguagem/comunicação e violência psicológica através de pesquisa qualitativa exploratória. Os informantes foram estudantes de psicologia de uma universidade pública entre 20 e 30 anos de ambos os sexos. Aplicamos um questionário contendo perguntas abertas da análise: a conteúdos violentos e desqualificadores; b pessoas que proferiram os conteúdos violentos. Para identificar os núcleos de sentido realizamos uma análise temática conforme a proposta de Minayo. As respostas foram reorganizadas em dois eixos, cotejados à literatura revisada, na medida das possibilidades hermenêuticas. Assim, a violência psicológica por meio da linguagem, foi sintetizada em: I Conteúdos subjetivamente desqualificadores: dizem respeito ao informante, por exemplo: burro; indica imediatamente a violência psicológica; II conteúdos socialmente violentos: referem-se ao contexto em que viviam e presenciavam nas conversas, na rua, no bairro, na universidade e na televisão, por exemplo: estupro, racismo, assassinato, assalto, sequestro, tortura; traduzem múltiplas formas de violência: a física, institucional, pública, moral, simbólica e a psicológica. Entre os resultados identificamos, todavia, que as principais formas verbais que a violência assumiu foram as relacionadas à violência sexual. A família foi o principal agente ofensor no que se refere aos conteúdos subjetivamente desqualificadores.  

  13. Tectonics of the northern Venezuelan Andes from satellite images analysis

    Science.gov (United States)

    Dhont, D.; Backé, G.; Hervouët, Y.

    2003-04-01

    The northern part of the Venezuelan (or Merida) Andes is a complex area comprising a Cretaceous to Quaternary sedimentary sequence that recorded two main stages of deformation: (1) the uplifting of the Carribean belt in the Cretaceous-Eocene (Carribean stage), which is superimposed by (2) the building of the Venezuelan Andes since the Miocene (Andean stage). The study area is located at the junction between the Merida Andes and the Caribbean belt, and constitutes a key zone to understand the transition between these two orogens. Our aim is to implement the structural mapping in order to propose a new model of deformation at regional scale. The methodology is based on analysis of Landsat TM, SPOT, radarsat and DEM images, and is complemented by geological studies in the field. Integration of this complementary data set into a GIS enables a new understanding of the tectonics of the northern Venezuelan Andes during the Neogene-Quaternary. We focused on three main areas where the structures are clearly exposed. In the Mene Grande area, our structural analysis allows to precise the geometry and timing of deformations. The Cerro la Galera anticline is a fault bend fold propagating to the SW that developped along the Burro Negro fault during the Eocene-Oligocene and then eroded. The Cerro La Luna (or Cerro Misoa) is a pop-up structure that developped later during the Andean stage. In the Jirajara area, we have evidenced a releasing-bend basin at left-stepping offset of the Valera fault. To the east, this basin is surrounded by the relief of the Serrania de Jirajara which gravitationally collapses towards the lowland of the basin. In the Sierra de Barragua area, we mapped the left-lateral strike-slip Rio Diquiva fault 25 km east of the Valera fault. This fault is a major structure bounding two distincts areas of sedimentation during the Eocene. The synthesis of these observations shows that the northern Venezuelan Andes consist in a mosaic of independent crustal blocks

  14. Areal geology of the Little Cone quadrangle, Colorado

    Science.gov (United States)

    Bush, A.L.; Marsh, O.T.; Taylor, R.B.

    1960-01-01

    The Little Cone quadrangle includes an area of about 59 square miles in eastern San Miguel County in southwestern Colorado. The quadrangle contains features characteristic of both the Colorado Plateaus physiographic province and the San Juan Mountains, and it has been affected by geologic events and processes of two different geologic environments. The continental sedimentary rocks of the Cutler formation of Permian age are the oldest rocks exposed in the quadrangle. Deposition of the Cutler was followed by a long period of erosion and peneplanation. There is no marked angular discordance between the Cutler and the overlying Dolores formation in the Little Cone quadrangle, but there is in areas some tens of miles east and west of the quadrangle where some crustal warping took place. The continental sedimentary rocks of the Dolores formation of Late Triassic age are red beds that are similar in gross lithology to those of the Cutler. The Dolores formation is subdivided into five general units that persist throughout the quadrangle and for some tens of miles to the north, south, and east. A second long period of erosion followed deposition of the Dolores. The Entrada sandstone of Late Jurassic age overlies the Dolores formation, and is in turn overlain by the Wanakah formation, also of Late Jurassic age. The Wanakah consists of the Pony Express limestone member at the base, the Bilk Creek sandstone'member near the center, and a "marl" member at the top. The Morrison formation, which overlies the Wanakah, consists of the Salt Wash sandstone member in the lower part and the Brushy Basin shale member in the upper part. A period of erosion, probably of relatively short duration, followed deposition of the Brushy Basin member. The Burro Canyon formation of Early Cretaceous age occurs as discontinuous bodies that fill channels cut in the top of the Morrison formation. Deposition of the Burro Canyon formation was followed by another period of erosion, which in turn ended

  15. Ground-water, surface-water, and water-chemistry data, Black Mesa area, northeastern Arizona--2003-04

    Science.gov (United States)

    Truini, Margot; Macy, Jamie P.; Porter, Thomas J.

    2005-01-01

    Moenkopi Spring, decreased 26 percent at an unnamed spring near Dennehotso, and decreased 50 percent at Burro Spring. For the past 12 years, discharges from the four springs have fluctuated; however, an increasing or decreasing trend is not apparent. Continuous records of surface-water discharge have been collected from 1976 to 2003 at Moenkopi Wash, 1996 to 2003 at Laguna Creek, 1993 to 2003 at Dinnebito Wash, and 1994 to 2003 at Polacca Wash. Median flows for November, December, January, and February of each water year were used as an index of ground-water discharge to those streams. Since 1995, the median winter flows have decreased for Moenkopi Wash, Dinnebito Wash, and Polacca Wash. Since the first continuous record of surface-water discharge in 1997, there is no consistent trend in the median winter flow for Laguna Creek. In 2004, water samples were collected from 12 wells and 4 springs and analyzed for selected chemical constituents. Dissolved-solids concentrations ranged from 100 to 649 milligrams per liter. Water samples from 11 of the wells and from all the springs had less than 500 milligrams per liter of dissolved solids. There are no appreciable time trends in the chemistry of water samples from 7 wells and 2 springs; increasing trends in dissolved-solids and chloride concentrations were evident from the more than 10 years of data for 2 springs.

  16. Annotated bibliography of scientific research on greater sage-grouse published since January 2015

    Science.gov (United States)

    Carter, Sarah K.; Manier, Daniel J.; Arkle, Robert S.; Johnston, Aaron N.; Phillips, Susan L.; Hanser, Steven E.; Bowen, Zachary H.

    2018-02-14

    resulted in the inclusion of 169 published products (2 of these products were published corrections to journal articles). The management topics most commonly addressed were GRSG behavior or demographics and GRSG habitat selection or habitat characteristics at broad or site scales. Few products addressed captive breeding, recreation, wild horses and burros, and range management structures (including fences). We include in this annotated bibliography the full citation, product summary, and management topics addressed by each product. The online version of this bibliography (https://apps.usgs.gov/gsgbib/index.php) is searchable by topic and location and includes links to the original publications.A substantial body of literature has been compiled based on research explicitly related to the conservation, management, monitoring, and assessment of GRSG. These studies may inform planning and management actions that seek to balance conservation, economic, and social objectives and manage diverse resource uses and values across the western United States.The review process for this product included requesting input on each summary from one or more authors of the original peer-reviewed article or report and a formal review of the entire document by three independent reviewers and, subsequently, the USGS Bureau Approving Official. This process is consistent with USGS Fundamental Science Practices.

  17. Results of ground-water, surface-water, and water-chemistry monitoring, Black Mesa area, northeastern Arizona, 1994

    Science.gov (United States)

    Littin, G.R.; Monroe, S.A.

    1995-01-01

    The Black Mesa monitoring program is designed to document long-term effects of ground-water pumping from the N aquifer by industrial and municipal users. The N aquifer is the major source of water in the 5,400-square-mile Black Mesa area, and the ground water occurs under confined and unconfined conditions. Monitoring activities include continuous and periodic measurements of (1) ground-water pumpage from the confined and unconfined areas of the aquifer, (2) ground-water levels in the confined and unconfined areas of the aquifer, (3) surface-water discharge, and (4) chemistry of the ground water and surface water. In 1994, ground-water withdrawals for industrial and municipal use totaled about 7,000 acre-feet, which is an 8-percent increase from the previous year. Pumpage from the confined part of the aquifer increased by about 9 percent to 5,400 acre-feet, and pumpage from the unconfined part of the aquifer increased by about 2 percent to 1,600 acre-feet. Water-level declines in the confined area during 1994 were recorded in 10 of 16 wells, and the median change was a decline of about 2.3 feet as opposed to a decline of 3.3 feet for the previous year. The median change in water levels in the unconfined area was a rise of 0.1 foot in 1994 as opposed to a decline of 0.5 foot in 1993. Measured low-flow discharge along Moenkopi Wash decreased from 3.0 cubic feet per second in 1993 to 2.9 cubic feet per second in 1994. Eleven low-flow measurements were made along Laguna Creek between Tsegi, Arizona, and Chinle Wash to determine the amount of discharge that would occur as seepage from the N aquifer under optimal base-flow conditions. Discharge was 5.6 cubic feet per second near Tsegi and 1.5 cubic feet per second above the confluence with Chinle Wash. Maximum discharge was 5.9 cubic feet per second about 4 miles upstream from Dennehotso. Discharge was measured at three springs. The changes in discharge at Burro and Whisky Springs were small and within the uncertainty of

  18. Young calves production in native, mixed or cultivated pastures in the Pantanal, Mato Grosso do Sul, Brazil Produção de bezerros jovens em pastagens nativas, mistas ou cultivadas no Pantanal Sul Mato-Grossense

    Directory of Open Access Journals (Sweden)

    Alexandre Menezes Dias

    2008-09-01

    fatorial 3x3 (três tipos de pastagens e três idades de abate. As pastagens foram: 1-nativa, composta por Capim-mimoso, Capim-rabo de burro e Capim-carona, 2-cultivada, composta por Brachiaria decumbens e B. humidicola, e 3-mista, composta por capins nativos e cultivados. Houve interação (P<0,05 entre idade de abate e pastagem. Os animais da pastagem mista apresentaram maior peso de abate, ganho médio diário (GMD e peso de carcaça, aos 8 e 10 meses, em comparação aos animais das pastagens nativa ou cultivada. Animais criados em pastagem mista, aos oito meses, apresentaram GMD de 0,83kg/dia, superior aos criados em pastagens nativas ou cultivadas, 0,65 e 0,59kg/dia, respectivamente. Aos nove meses, as médias de GMD foram 0,55; 0,61 e 0,64kg/dia, e, aos 10 meses, foram 0,48; 0,73 e 0,51kg/dia, respectivamente, para pastagens nativa, mista ou cultivada. O rendimento de carcaça não foi influenciado pela idade. Não houve efeito de sexo para nenhuma das variáveis avaliadas. Recomenda-se o abate de bezerros jovens, machos ou fêmeas, entre oito e dez meses de idade, criados em pastagens mistas ou cultivadas no Pantanal, para produção de vitelos.

  19. Geology of the Cerro Summit quadrangle, Montrose County, Colorado

    Science.gov (United States)

    Dickinson, Robert G.

    1966-01-01

    The Cerro Summit quadrangle covers 58 square miles of dissected plateau on the south flank of the Gunnison uplift in southwestern Colorado. It lies east of the Uncompahgre River valley and south of the Black Canyon of the Gunnison River. Rocks dip gently in most of the quadrangle, but they are locally upturned and faulted on the margin of the Gunnison uplift and are intensely deformed in the core of the uplift. The rocks exposed are of Precambrian, late Mesozoic, and Cenozoic age. Precambrian rocks include metasedimentary schist and gneiss, granitic pegmatite, and olivine gabbro. The oldest Mesozoic rocks exposed are continental, fresh-water, and lagoonal deposits in the Late Jurassic Entrada Sandstone, Wanakah Formation, and Morrison Formation. Channel-fill deposits that unconformably overlie the Jurassic rocks are possibly the Burro Canyon Formation of Early Cretaceous age. Upper Cretaceous rocks include marine and nearshore deposits of the Dakota Sandstone, Mancos Shale, and Pictured Cliffs Sandstone, and the fresh- and brackish-water sandstone, shale, and coal of the Fruitland Formation. Rocks of Late Cretaceous age that crop out in the adjacent Cimarron Ridge area may also have been deposited in this quadrangle but are now eroded; these rocks include the nonmarine Kirtland Shale and an unnamed volcanic conglomerate and tuff breccia. Nine faunal zones in the Mancos Shale help to establish the correct correlation of units in the Upper Cretaceous. The Pictured Cliffs Sandstone, Fruitland Formation, and Kirtland Shale of the Cerro Summit area have been mapped by some geologists as the Mesaverde Formation. Fossils indicate that the rocks are younger than the type Mesaverde. The unnamed volcanic rocks represent major volcanism in nearby areas. A Late Cretaceous (Maestrichtian) age for the volcanism is indicated by palynological evidence and an isotopic age of approximately 66 million years. Middle Tertiary rocks are conglomerate and tuff breccia. Upper Tertiary or

  20. Geologic map of Colorado National Monument and adjacent areas, Mesa County, Colorado

    Science.gov (United States)

    Scott, Robert B.; Harding, Anne E.; Hood, William C.; Cole, Rex D.; Livaccari, Richard F.; Johnson, James B.; Shroba, Ralph R.; Dickerson, Robert P.

    2001-01-01

    New 1:24,000-scale geologic mapping in the Colorado National Monument Quadrangle and adjacent areas, in support of the USGS Western Colorado I-70 Corridor Cooperative Geologic Mapping Project, provides new interpretations of and data for the stratigraphy, structure, geologic hazards in the area from the Colorado River in Grand Valley onto the Uncompahgre Plateau. The plateau drops abruptly along northwest-trending structures toward the northeast 800 m to the Redlands area and the Colorado River in Grand Valley. In addition to common alluvial and colluvial deposits, surficial deposits include Holocene and late Pleistocene charcoal-bearing valley-fill deposits, late to middle Pleistocene river-gravel terrace deposits, Holocene to middle Pleistocene younger, intermediate, and old fan-alluvium deposits, late to middle Pleistocene local gravel deposits, Holocene to late Pleistocene rock-fall deposits, Holocene to middle Pleistocene young and old landslide deposits, Holocene to late Pleistocene sheetwash deposits and eolian deposits, and Holocene Cienga-type deposits. Only the lowest part of the Upper Cretaceous Mancos Shale is exposed in the map area near the Colorado River. The Upper and Lower? Cretaceous Dakota Formation and the Lower Cretaceous Burro Canyon Formation form resistant dipslopes in the Grand Valley and a prominent ridge on the plateau. Less resistant strata of the Upper Jurassic Morrison Formation consisting of the Brushy Basin, Salt Wash, and Tidwell Members form slopes on the plateau and low areas below the mountain front of the plateau. The Middle Jurassic Wanakah Formation nomenclature replaces the previously used Summerville Formation. Because an upper part of the Middle Jurassic Entrada Formation is not obviously correlated with strata found elsewhere, it is therefore not formally named; however, the lower rounded cliff former Slickrock Member is clearly present. The Lower Jurassic silica-cemented Kayenta Formation forms the cap rock for the Lower

  1. Avaliação da eficiência de controle de plantas daninhas gramíneas do herbicida clethodim em algodoeiro herbáceo (Gossypium hirsutum var. latifolium Hutch. Evaluation of the efficiency on the control of gramineous weeds by the herbicide clethodim in a herbaceous cotton crop (Gossypium hirsutum var. latifolium Hutch.

    Directory of Open Access Journals (Sweden)

    J.P. Laca-Buendia

    1992-01-01

    Full Text Available Com o objetivo de conhecer a eficiência do herbicida clethodim no controle de plantas daninhas gramíneas e seu comportamento seletivo na cultura do algodão, cv. IAC-20, foi instalado um experimento em solo aluvial de textura arenosa. Foram estudados os seguintes tratamentos: clethodim + óleo mineral nas doses de 0,84 0,96 e 0,108 kg/ha + 0,5 % v/v, sethoxydim + óleo mineral a 0,23 kg/ha + 0,5% v/v em pós-emergência, alachlor a 2,4 kg/ha em pós-emergência, trifluralin a 0,89 kg/ha em pós-plantio incorporado, uma testemunha capinada e outra sem capina. As espécies de plantas daninhas mais freqüentes foram: Cenchrus echinatus L. (capim-carrapicho, Eleusine indica (L. Gaertn. (capim-pé-de-galinha e Brachiaria plantaginea (Link. Hitch. (capim-marmelada. Nenhum dos herbicidas testados apresento injúria à cultura. Quanto à produção, esses herbicidas apresentaram diferenças significativas em relação à testemunha capinada (828 kg/ha, sendo que o tratamento com clethodim + óleo mineral a 0,108 kg/ha + 0,5% v/v (528 kg/ha foi o único que apresentou diferenças significativas com a testemunha sem capina (330 kg/ha. Na altura da planta, a testemunha capinada somente apresentou diferenças significativas em relação ao tratamento com trifluralin e a testemunha sem capina. O carrapicho-de-burro e o capim-pé-de-galinha foram eficientemente controlados pelo clethodim + óleo mineral, em todas as doses estudadas, e sethoxydim + óleo mineral, com controle acima de 80% aos 45 dias da aplicação. O capim-marmelada foi eficientemente controlado pelo clethodim + óleo mineral a 0,096 e 0,108 kg/ha + 0,5% v/v, com 86% e 94%, respectivamente, seguido de sethoxydim + óleo mineral com 83%, e trifluralin com 71% de controle, até 45 dias após aplicação. O total de gramíneas foi eficientemente controlado pelo clethodim + óleo mineral 0,108 kg/ha + 0,5% v/v com 94,2% seguido de clethodim + óleo mineral 0,096 kg/ha + 0,5% v/v, com 85% e

  2. Estudios sobre leishmaniasis tegumentaria en el Perú: V. Leishmaniasis natural en perros procedentes de localidades utógenas

    Directory of Open Access Journals (Sweden)

    Arístides Herrer

    1951-01-01

    Full Text Available Por espacio de algo más de tres años se han llevado a cabo observaciones en diversos animales domésticos en, la zona utógena de la provincia de Huarochirí, llegando a verificar infecciones naturales a leishmanias en 46 perros. Entre los animales de otras especies que fueran objeto de estudio figuran principalmente: gatos, burros, caballos y chanchos, en ninguno de los cuales se consiguió observar leishmanias. Durante el primer año de observaciones fueron revisados 469 animales en las respectivas zonas leishmaníasicas de los valles del Rímac, Canchacalla y Lurín. Por entonces se creía que la infección natural en los animales sería semejante a la humana en cuanto al aspecto macroscópico de las lesiones, esto es, con ulceraciones de la piel fácilmente reconocibles, cosa que en ninguna ocasión fuera posible observar. Pero como simultáneamente se efectuaran en el laboratorio (en Lima ciertos estudios experimentales sobre la uta, principalmente tratando de determinar la susceptibilidad de los animales domésticos más frecuentes en las localidades utógenas, al germen etiológico de esta forma clínica de la Leishmaniasis tegumentaria, se llegó a conocer el aspecto que ofrecían algunas de las lesiones leishmaníasicas en el perro. En una nueva serie de observaciones, llevadas a cabo con el detenimiento que aconsejaban los citados estudios experimentales, fueron revisados un total de 621 animales, esta vez a lo largo de toda la zona utógena de la provincia de Huarochirí. Esta serie incluye 513 perros, en 46 de los cuales se logró verificar la infección, mientras que los restantes animales resultaron todos negativos. Aunque rutinariamente merecieran igual atención, cuando menos en lo que respecta al hocico y las orejas de los animales revisados, en los 46 casos el parásito fué hallado tan sólo en el hocico. Durante estos estudios se han llegado a conocer ciertos aspectos de la leishmaniasis natural en el perro, algunos de los