WorldWideScience

Sample records for algo tan subjetivo

  1. del bienestar subjetivo

    Directory of Open Access Journals (Sweden)

    Francisco A. Laca Arocena

    2005-01-01

    Full Text Available Hace dos décadas, Edward Diener, interesándose por la medida en que las personas están satisfechas con sus vidas, abrió un nuevo campo de investigación en psicología que se conoce como “bienestar subjetivo”. El presente estudio replica anteriores exploraciones de la felicidad subjetiva en la población mexicana, la contrasta con grupos específicos (homosexuales masculinos, analiza diferencias de género y abre la discusión sobre algunos tópicos de la psicología del bienestar subjetivo.

  2. Conocimiento objetivo y subjetivo sobre el VIH/SIDA como predictor del uso de condón en adolescentes

    Directory of Open Access Journals (Sweden)

    Villaseñor-Sierra Alberto

    2003-01-01

    Full Text Available OBJETIVO: Evaluar la asociación de conocimientos objetivo y subjetivo sobre VIH/SIDA con el uso del condón. MATERIAL Y MÉTODOS: Se analizó la base de datos de una encuesta aleatoria, anónima y autoaplicada en 1 410 adolescentes de cuatro estratos socioeconómicos de Guadalajara, Jalisco, México, entre 1995 y 1996. El conocimiento objetivo se evaluó mediante 24 preguntas sobre VIH/SIDA y el "subjetivo" con la pregunta: "?(spanishqué tanto crees conocer sobre el SIDA?" Las variables predictoras del uso del condón se identificaron mediante regresión logística y cálculo de la razón de momios con IC 95%. RESULTADOS: El nivel de conocimiento objetivo fue regular y tuvo diferencias por estratos (p< 0.001 favoreciendo al medio y superior (p= 0.008. Del conocimiento subjetivo, los de estratos alto, medio y bajo percibieron saber "algo", y los del marginado "poco". Los varones dijeron usar más el condón (35.4% que las mujeres (15.3% (p< 0.001, y los de estratos superiores (p< 0.005. Aunque conocimiento objetivo y subjetivo se correlacionaron (r= 0.37, p< 0.001, un mayor conocimiento subjetivo se asoció con el uso del condón (p< 0.001. CONCLUSIONES: Conocimiento subjetivo, pertenecer al estrato alto o medio y ser varón, predijeron el uso constante del condón. Su uso fue diferencial por género y estrato socioeconómico.

  3. Design and Development of AlgoWBIs

    Directory of Open Access Journals (Sweden)

    Kavita

    2013-09-01

    Full Text Available AlgoWBIs has been developed to support algorithm learning. The goal to develop this tool is to empower educators and learners with an interactive learning tool to improving algorithm’s skills. The paper focuses on how to trim down the challenges ofalgorithm learning andalso discusses how this tool will improve the effectiveness of computer facilitated interactive learning and will support in reducing stress of learning. It will aid computer science graduate and undergraduate learners.Perspective development model has been used for development to enhance the tool’s features.

  4. Motivos, personalidad y bienestar subjetivo en el voluntariado

    Directory of Open Access Journals (Sweden)

    Marcial E. Cabrera-Darias

    2015-10-01

    Full Text Available El principal objetivo de este estudio fue analizar las relaciones entre las motivaciones del individuo para participar en actividades de voluntariado, los rasgos de personalidad y el bienestar subjetivo. Participaron 153 adultos, de edades entre los 17 y 65 años, que cumplimentaron las distintas medidas tanto on-line como en papel y lápiz. Los resultados mostraron que las motivaciones previas diferían entre los dos grupos de voluntarios. Los análisis correlacionales indicaron que algunos motivos como petición de la organización, circunstancias personales o experiencias vividas se asociaban a satisfacción vital y a emociones negativas en los voluntarios on-line, mientras que hacer algo útil o sentimientos de paz eran los motivos asociados a estos indicadores de bienestar para los voluntarios de la prueba en papel. Los rasgos de personalidad, principalmente el neuroticismo, mostraron relaciones más consistentes con el bienestar que las motivaciones en ambos grupos de voluntarios. Los análisis de regresión indicaron que las facetas de extraversión, como el gregarismo, la calidez o la actividad, fueron los predictores más potentes del bienestar de los voluntarios que hicieron las pruebas en papel; mientras que la disciplina, faceta de la responsabilidad, y la estabilidad emocional predecían el bienestar de los voluntarios on-line. Estos hallazgos sugieren que existen distintos perfiles de voluntarios que podrían estar determinando su participación en diversas actividades o colectivos. Además, las características personales parecen tener un mayor efecto en el bienestar que las motivaciones.

  5. Bienestar Subjetivo en Adultos Mayores Venezolanos

    Directory of Open Access Journals (Sweden)

    Marisela Virginia Arraga Barrios

    2010-01-01

    Full Text Available Se determinó el bienestar subjetivo de adultos mayores venezolanos, mediante estudio descriptivo, no experimental, de campo, con 633 personas entre 60 y 85 años a quienes se les aplicó la Escala de felicidad de Lima-adaptada. Los resultados mostraron que el 78,4% de los participantes posee alto nivel de Bienestar subjetivo, el 19,6% moderado y el 2,1% bajo. De las cuatro dimensiones que conforman la variable, "Satisfacción con la vida", "Alegría de vivir" y "Sentido positivo de la vida" obtuvieron puntajes superiores al 62%, mientras que "Realización personal" alcanzó el 51%. Esto sugiere un alto nivel de felicidad en adultos mayores venezolanos y reflejan el regocijo y complacencia por los logros alcanzados en su vida, lo que pudiera constituirse en un predictor de salud, interesante de indagar.

  6. Errancias: la perspectiva de los procesos subjetivos

    Directory of Open Access Journals (Sweden)

    David Maldavsky

    1999-04-01

    Full Text Available Desde la perspectiva de los procesos subjetivos, el nomadismo (con o sin metas conduce a prestar atención al nexo con lo diverso, a la apropiación identificatoria o el repudio de los orígenes somáticos, las cuestiones ligadas con el multilingüismo, con la transmisión intergeneracional de los traumas y de las migraciones simbólicas de elementos correspondientes a lenguajes del erotismo que arraigan en los receptores al evocar relaciones de similitud o de complementariedad.

  7. Risks of Tanning

    Science.gov (United States)

    ... safe tan. The increase in skin pigment, called melanin, which causes the tan color change in your ... to UV radiation, it increases the production of melanin in an attempt to protect the skin from ...

  8. SOBRE LO OBJETIVO, LO SUBJETIVO Y LO CAPRICHOSO EN ARQUITECTURA

    Directory of Open Access Journals (Sweden)

    Francisco Javier Montero Fernández

    2010-11-01

    Full Text Available RESUMEN: Un número nuevo de una revista debe pensar una editorial, al igual que un proyecto necesita nacer de un argumento y un primer croquis para, inicialmente, ofrecer una imagen finalista. Después guardaremos la editorial en un cajón y desarrollaremos el número de la revista. Dentro de unos meses, sacaremos ese croquis y podremos reconocer su eficacia; sufrirá algún retoque pero esperamos que aún sea válido.Un viaje comienza con un empeño, un destino o una finalidad. Esta revista se ofrece en cada número con un carácter poliédrico acotando faceta a faceta, la definición de Arquitectura. Siempre que hablamos de ella intentamos conocerla, delimitarla y hay quien piensa que en su anatomía puede encerrarse el secreto de algo que es inaprensible. Paso a paso nos acercamos a su conocimiento lentamente, gracias a un esfuerzo parecido al del trabajo de Sísifo. Lo más acertado sería pensar que nuestro acercamiento es parecido al recorrido de una cinta de Moebius y aunque consigamos agotar el recorrido, siempre seremos conscientes de la breve e inasible distancia existente en el mismo punto de cada lado de la cinta. Este viaje que muchos quieren entender como absurdo, es el viaje de lo subjetivo, de aquello que nos permite acercarnos a las ideas para conocerlas poco a poco, lentamente, frente al eficaz conocimiento lógico, analítico, anatómico que, como el niño que desmonta los objetos, algunos investigadores intentan aplicar, desmontando los edificios, pensando que dentro están las ideas. No obstante todos se ven obligados a reconocer que ese trabajo sí que es absurdo porque nos lleva a la nada, quizás solo a la destrucción del pensamiento a favor del conocimiento ineficaz de la realidad.El otro conocimiento que proponemos consiste en una actitud alternativa, aquella que reivindica lo subjetivo frente a lo objetivo, para establecer como mecanismo de conocimiento una acotación del mundo que nos rodea, de los temas que nos

  9. Indoor Tanning Is Not Safe

    Science.gov (United States)

    ... Trends Behavior Rates What CDC Is Doing Skin Cancer Prevention Progress Report The Burning Truth Initiative A Base Tan Is Not a Safe Tan Tanned Skin Is Not Healthy Skin Controlled Tanning Is Not Safe Tanning Guidelines for School ... Melanoma Surveillance in the U.S. Related Links ...

  10. Magazine exposure, tanned women stereotypes, and tanning attitudes.

    Science.gov (United States)

    Cho, Hyunyi; Lee, Seungyoon; Wilson, Kari

    2010-09-01

    This study investigated whether magazine exposure is related to stereotypical beliefs about tanned women. A survey of White college women (n=205) assessed their exposure to beauty/fashion and health/fitness magazines. Outcome variables were the beliefs that tanned women are fashionable, fit, and shallow. Attention to the tanned women's images in health magazines positively predicted the belief that tanned women are fit and that tanned women are shallow; in contrast, attention to the images in beauty magazine negatively predicted the belief that tanned women are fit. Number of beauty magazines women read negatively predicted the belief that tanned women are shallow. The belief that tanned women are fit was unrelated, but the belief that tanned women are shallow was negatively related, with tanning attitudes.

  11. Indoor Tanning and Problem Behavior

    Science.gov (United States)

    Bagdasarov, Zhanna; Banerjee, Smita; Greene, Kathryn; Campo, Shelly

    2008-01-01

    Objective: The authors examined factors predicting college students' use of tanning beds. Participants and Methods: Undergraduate students (N = 745) at a large Northeastern university participated in the study by answering a survey measuring tanning behavior and other psychosocial variables, including sensation seeking, self-esteem, tanning image…

  12. Escalamiento subjetivo de conductas delictivas en legos y expertos

    OpenAIRE

    García Cueto, Eduardo; García García , Juan; Fuente Sánchez, Leticia de la; Borges del Rosal, África; Sánchez Bruno, Alfonso; San Luis Costas, Concepción; Fuente Solana, Emilia Inmaculada de la; Martín Tamayo, Ignacio

    2003-01-01

    En este estudio se realiza el escalamiento subjetivo de 13 conductas delictivas del actual Código Penal español, mediante el método de las comparaciones binarias. Se utiliza una muestra de 736 personas de población general de cinco comunidades autónomas españolas, y una muestra de 141 expertos en Derecho. Las edades de las personas de la muestra general están comprendidas entre los 18 y los 63 años, mientras que en la muestra de expertos la edad oscila entre los 23 y los 63 años. Los resultad...

  13. Vértigo subjetivo crónico

    OpenAIRE

    Benito Orejas, José Ignacio

    2012-01-01

    [ES] Presentamos un extracto del artículo publicado por Staab JP en Continuum Lifelong Learning Neurol (2012; PMID 23042063), sobre el vértigo subjetivo crónico. En 1986, los neurólogos alemanes Thomas Brandt y Marianne Dietrich describen el “síndrome del vértigo postural fóbico” (VPF), a partir de la observación clínica de pacientes con mareo no vertiginoso y exploración neuro-otológica normal. A comienzos del año 2000 un equipo americano dirigido por Jeffrey Staab y Michael Ruckenstein conf...

  14. SEWABILITY PROPERTIES OF GARMENT LEATHERS TANNED WITH VARIOUS TANNING MATERIALS

    Directory of Open Access Journals (Sweden)

    ORK Nilay

    2016-05-01

    Full Text Available Chromium tannage is the most used technology in processing of garment leathers. Due to environmental requirements and demands on natural products there is an increasing interest on alternatives to chromium tannage especially on vegetable tanned leathers. Leather properties vary in a very wide range depending on the animal type it is obtained from and the process type and chemicals used in the manufacturing. In this study, the effect of various tanning materials to the sewability of garment leathers was investigated. For this purpose, vegetable, chromium and chromium-vegetable combination tanned garment leathers from the same animal origin were supplied from a garment leather manufacturing factory. Needle penetration force and the sewability values of these leathers were determined by using L&M Sewability Tester. It was found that material properties and sewing properties showed differences regarding to the tanning material used even in same type of raw material. Chromium tanned leathers had sewability values of 13.4% horizontal and 14.2% vertical which are considered good to fair. Vegetable tanned leathers and chromium-vegetable tanned leathers had sewability values of 38.2% horizontal, 49.2% vertical and 98% horizontal, 98.5% vertical respectively which are considered poor. The results of the study conclude that, there is a big difference in material properties when the tanning technology and material is changed which also affects the sewing properties.

  15. Bienestar psicológico subjetivo y personas mayores residentes

    Directory of Open Access Journals (Sweden)

    Ana Concepción Flecha García

    2014-12-01

    Full Text Available La mejora del bienestar psicológico subjetivo y, con él, la calidad de vida de las personas mayores residentes es el propósito esencial de este trabajo. Los teóricos destacan la importancia que desempeña el bienestar subjetivo sobre la calidad de vida y su interés en la experiencia de envejecer. Concebimos la calidad de vida como un concepto multidimensional que engloba componentes objetivos y subjetivos referidos al bienestar físico y psico-social de las personas, y su evaluación incluye la percepción subjetiva que tiene el sujeto de estas dimensiones. Entendemos el bienestar psicológico subjetivo, como la valoración positiva, afectiva y cognitiva, de bienestar y satisfacción con la vida entendida como “estar y sentirse bien en el presente” y, “estar y sentirse bien con el propio recorrido vital”.El principal objetivo del estudio es conocer las necesidades de los residentes relacionadas con los componentes específicos del bienestar y satisfacción vital que la investigación revela mas asociados a las personas mayores –vínculos personales, vida activa, reminiscencia y recuerdos felices, optimismo-, y la satisfacción vital; conocer la conexión entre estas dimensiones e identificar posibles factores relacionados con las mismas, completan el fin de este trabajo.Se plantea un modelo metodológico que permite recoger el sentimiento y opinión de las personas mayores desde su propia experiencia de bienestar y satisfacción vital. El enfoque y su carácter interpretativo favorecen la comprensión e interpretación de la información tal y como es percibida por los participantes que viven y se relacionan en un determinado contexto social. Se elige para tal fin la orientación , realizando el posterior. Se recoge la información mediante una entrevista semiestructurada elaborada en base a los fines propuestos. La muestra se compone de 66 personas seleccionas en

  16. Crisis de la psicología: ¿singular o plural? Aproximación a algo más que un concepto historiográfico

    OpenAIRE

    Caparrós, Antonio, 1938-2001

    1991-01-01

    Desde la constitución de la psicologia como disciplina independiente los psicólogos no se han conformado con producir conocimientos científicos. Además han proclamado insistentemente que son científicos. Y al mismo tiempo paradójicamente nunca han faltado entre ellos quienes al contemplar la psicologia en su globalidad han reconocido en ésta una disciplina en crisis. En este sentido la crisis de la psicologia es un tema siempre recurrente y tan viejo como ella. Algo que no ha sido tenido en c...

  17. Empleados y desempleados, atribuciones causales y bienestar subjetivo

    Directory of Open Access Journals (Sweden)

    Emilio Moyano-Díaz

    2013-01-01

    Full Text Available Se analiza la relación del desempleo con el bienestar subjetivo (BS y el estilo atribucional en una muestra de 200 participantes (100 desempleados equirepartidos por sexo, de 36 años de edad promedio, que completó 4 instrumentos, controlándose algunas variables socio-demográficas. Los desempleados presentan menor BS (Us≥3,607; Zs≥ -3,409; ps≤0,039 y un estilo atribucional con locus de causalidad externo, inestable y de bajo control (Us≥1332; Zs≥ -8,985; ps≤0,01. Desempleados hombres y mujeres tienen menor nivel de satisfacción vital (SV que sus pares empleados (Mmujeres= 21,38 vs.24,66; Mhombres= 22,82 vs. 26,10; Us ≥891; Zs ≥-2,479; ps≤ 0,017, pero presentan un mismo nivel de felicidad (Us ≤1036,500; Zs ≤-1,480; ps ≥1,150, lo que genera preguntas para futuros estudios acerca de felicidad vs. SV en ámbitos de vida desfavorables. Los grupos difieren al explicarse el desempleo (χ2 (1 = 8,970; p<0,05. Se discute los resultados y algunas conjeturas explicativas de lo obtenido.

  18. AJUSTE PSICOSOCIAL, BIENESTAR SUBJETIVO Y OCIO EN ADULTOS MAYORES JUBILADOS MEXICANOS

    OpenAIRE

    Christian Oswaldo Acosta Quiroz; Javier José Vales García; Ramón René Palacio Cinco

    2015-01-01

    El objetivo de este estudio fue establecer la relación entre ajuste psicosocial en la jubilación,bienestar subjetivo, actividades de ocio y variables sociodemográficas en adultos mayores ju-bilados mexicanos. Participaron 181 adultos mayores con una edad media de 69.12 años y untiempo medio de jubilación de 11.21 años. Los resultados indican que el ajuste psicosocial enla jubilación y el bienestar subjetivo se relacionan significativamente entre sí y con las variablessociodemográficas de sexo...

  19. Tanning

    Science.gov (United States)

    ... of the epidermis, where they trigger cells called melanocytes (pronounced: mel- an -oh-sites) to produce melanin . ... more deeply than lighter-skinned people because their melanocytes produce more melanin. But just because a person ...

  20. Associations between seasonal sleep change and indoor tanning.

    Science.gov (United States)

    Culnan, Elizabeth; Kloss, Jacqueline D; Darlow, Susan; Heckman, Carolyn J

    2015-04-01

    Identification of risk factors for indoor tanning may ultimately aid the development of better indoor tanning prevention strategies, which is pertinent given the association between indoor tanning and skin cancer. This study aimed to examine the relationship between seasonal sleep change and indoor tanning. Female tanners (N=139) completed self-report measures including items relating to seasonal sleep changes, seasonal affective disorder (SAD), reasons for tanning, tanning during the winter months, and the Tanning Pathology Scale (TAPS), which measures problematic tanning motives and symptoms of tanning dependence. It was hypothesized that seasonal sleep change and SAD would be associated with greater indoor tanning during the winter, more tanning to improve mood and to relax, and higher scores on the TAPS. Findings indicated that more seasonal sleep change was associated with tanning to improve mood and higher scores on the TAPS. Similarly, the presence of SAD was related to tanning to improve mood, tanning to relax, and more problematic tanning.

  1. Diferencias transculturales en bienestar subjetivo: México y España

    Directory of Open Access Journals (Sweden)

    Mónica Carballeira

    2015-01-01

    Full Text Available El propósito de esta investigación ha consistido en analizar las diferencias en bienestar subjetivo en 346 estudiantes universitarios pertenecientes a dos culturas: colectivista (México e individualista (España. El bienestar subjetivo global se evaluó mediante la satisfacción vital, la felicidad, las emociones positivas y negativas; considerándose además, cuatro indicadores de satisfacción en dominios específicos: sentimental, estudios, salud y ocio. Los resultados indican que los estudiantes mexicanos puntúan más alto que los españoles en todos los indicadores de bienestar subjetivo. Los análisis de regresión múltiple revelan la importancia de la satisfacción sentimental y con los estudios en la felicidad y satisfacción vital de ambas culturas. Además, son importantes en la predicción del bienestar subjetivo global, la satisfacción con la salud para los mexicanos y la satisfacción con el ocio para los españoles. Los resultados apoyan el efecto diferencial de la cultura en el bienestar, fundamentalmente en su predicción a través de la satisfacción en ciertos dominios específicos.

  2. Flujo compartido en actividades colectivas físico-deportivas y bienestar subjetivo

    Directory of Open Access Journals (Sweden)

    Larraitz N. Zumeta

    2016-12-01

    Full Text Available Esta investigación estudia las actividades físico-deportivas como una fuente de flujo compartido o de experiencia óptima y su relación con el bienestar subjetivo. Se presentan dos estudios con estudiantes universitarios (N=88, N=285 que participan en actividades físicas y deportivas en grupo. Las medidas incluyen la calidad de la participación en la actividad, el flujo individual y compartido, las emociones positivas, y el bienestar subjetivo. El primer estudio muestra que el flujo compartido fue más intenso que el individual. En el segundo estudio, se realizaron análisis factoriales confirmatorios (AFC y análisis de mediación múltiple. Los resultados mostraron una estructura factorial de segundo orden con nueve dimensiones de primer orden, además de los efectos mediadores del flujo compartido y de las emociones positivas en el bienestar subjetivo. Se confirma la relevancia del flujo compartido durante los encuentros colectivos y su relación con el bienestar subjetivo.

  3. Produção de sentido subjetivo: as singularidades dos alunos no processo de aprender

    Directory of Open Access Journals (Sweden)

    Maria Carmen Villela Rosa Tacca

    Full Text Available Neste artigo, procuramos identificar como o sentido subjetivo se manifesta e está na base dos processos de aprendizagem de cada aluno, revelando a sua singularidade enquanto pessoa. Para essa compreensão, foi realizada uma pesquisa com base nas categorias de subjetividade e sentido subjetivo de González Rey. Nela esteve envolvida uma professora e sua turma de 4ª série do ensino fundamental. Na análise dos dados, foi possível compreender as formas como os alunos utilizavam as informações que constavam das atividades na conjuntura de seus recursos pessoais, no que emergiam diferentes sentidos subjetivos para construir caminhos de aprendizagem. Conclui-se que a aprendizagem se encontra envolvida com a produção de sentidos subjetivos procedentes dos diferentes espaços e situações de vida do aluno. Assim, considerar essa dimensão permitiria ações diferenciadas orientadas ao apoio à criança no avanço contínuo de sua escolaridade.

  4. Tanning and beauty: Mother and teenage daughters in discussion.

    Science.gov (United States)

    Hay, Jennifer L; Geller, Alan C; Schoenhammer, Maria; Gordon, Mallorie; Bishop, Marilyn; Shuk, Elyse; Oliveria, Susan; Halpern, Allan C

    2016-07-01

    Tanning increases dramatically through the teenage years, but the family context of this health risk behavior is relatively unstudied. We conducted videotaped conversations between teenage girls (10th and 11th grade) and their mothers. We developed a coding system for discussion content and highlight findings including inadequate knowledge concerning the harms of tanning and positive views of outdoor tanning over indoor tanning, yet agreement that all tans are attractive. Many teens believed that indoor tanning is sometimes necessary to achieve the tanned look. These findings can usefully guide intervention development regarding the harms of all tanning, rather than indoor or outdoor tanning specifically.

  5. 7 CFR 29.3066 - Tan color.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 2 2010-01-01 2010-01-01 false Tan color. 29.3066 Section 29.3066 Agriculture Regulations of the Department of Agriculture AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing... Tan color. A light red-yellow....

  6. Evolución y negación del derecho subjetivo

    Directory of Open Access Journals (Sweden)

    Jorge Agudo González

    2011-06-01

    Full Text Available El debate sobre la naturaleza jurídica de la categoría del derecho subjetivo ha centrado la atención de grandes juristas. La polémica en torno a esta cuestión resulta en todo caso lógica, pues nos referimos a una categoría jurídica fundamental en la “arquitectura” dogmático-jurídica. Esta controversia alcanzaría una de sus más importantes manifestaciones con el gran jurista francés León Duguit, quien dedicó una parte primordial de su obra jurídica a contestar a las tesis clásicas, negando desde la teoría jurídico-sociológica, la existencia misma de los derechos subjetivos.

  7. Evolución y negación del derecho subjetivo

    Directory of Open Access Journals (Sweden)

    Jorge Agudo González

    2011-07-01

    Full Text Available El debate sobre la naturaleza jurídica de la categoría del derecho subjetivo ha centrado la atención de grandes juristas. La polémica en torno a esta cuestión resulta en todo caso lógica, pues nos referimos a una categoría jurídica fundamental en la “arquitectura” dogmático-jurídica. Esta controversia alcanzaría una de sus más importantes manifestaciones con el gran jurista francés León Duguit, quien dedicó una parte primordial de su obra jurídica a contestar a las tesis clásicas, negando desde la teoría jurídico-sociológica, la existencia misma de los derechos subjetivos.

  8. Aspectos subjetivos relacionados con la violencia intrafamiliar. Caso municipio de Sabaneta Antioquia

    Directory of Open Access Journals (Sweden)

    Naidalis Yadira Martínez

    2016-01-01

    Full Text Available El artículo identifica las interacciones en aspectos familiares y subjetivos. En el artículo se desarrollan los aspectos subjetivos de las dinámicas familiares que justifican el uso y la implementación de la violencia intrafamiliar, se da cuenta de la naturalización de la violencia intrafamiliar en la interacción de los grupos familiares, convirtiéndola en un elemento de la relación que se establece entre los miembros de la familia. En el análisis realizado se identifican aspectos coyunturales asociados a situaciones que se vivieron en la dinámica de la familia de origen, pero que al momento han sido pocas las condiciones que permiten la modi- ficación de estas conductas ya que las familias han asumido estas expresiones de violencia intrafamiliar como parte de sus vidas.

  9. AJUSTE PSICOSOCIAL, BIENESTAR SUBJETIVO Y OCIO EN ADULTOS MAYORES JUBILADOS MEXICANOS

    Directory of Open Access Journals (Sweden)

    Christian Oswaldo Acosta Quiroz

    2015-01-01

    Full Text Available El objetivo de este estudio fue establecer la relación entre ajuste psicosocial en la jubilación,bienestar subjetivo, actividades de ocio y variables sociodemográficas en adultos mayores ju-bilados mexicanos. Participaron 181 adultos mayores con una edad media de 69.12 años y untiempo medio de jubilación de 11.21 años. Los resultados indican que el ajuste psicosocial enla jubilación y el bienestar subjetivo se relacionan significativamente entre sí y con las variablessociodemográficas de sexo, nivel de estudios, estatus de salud y estado civil. A su vez, se re-lacionan con la frecuencia de actividades de ocio (con diferencias entre hombres y mujeres.Estas variables deben tenerse en cuenta para fomentar un mayor ajuste psicosocial y bienestarsubjetivo en adultos mayores jubilados.

  10. Integración sociopolítica y bienestar subjetivo en México

    Directory of Open Access Journals (Sweden)

    René Millán

    2015-08-01

    Full Text Available ResumenEste artículo explora, en dos ciudades, la relación entre integración sociopolítica y bienestar subjetivo. Considera cuatro dimensiones de la integración: cohesión social; capital social; relación entre gobierno y ciudadanía; y calidad de vida. El resultado muestra que las formas de integración sociopolíticas afectan o modulan la asociación, internacionalmente asumida, de la felicidad con distintas variables. Eso significa que los contextos de las comunidades importan en la determinación del bienestar subjetivo. Son ellos los que explican la heterogeneidad del comportamiento o variabilidad de la felicidad. No obstante, hay asociaciones que se confirman más allá de los contextos específicos.

  11. CORRELATOS ENTRE BIENESTAR SUBJETIVO Y REGULACIÓN EMOCIONAL DEL ENOJO: DIFERENCIAS POR SEXO

    OpenAIRE

    2014-01-01

    Las experiencias emocionales negativas se asocian con el bienestar subjetivo, pero se ignora si la manera de regularlas se relaciona con los reportes de bienestar. El presente estudio exploró la asociación entre el bienestar percibido y ciertas variables culturales (premisas histórico-socio-culturales) e individuales (automonitoreo, estrategias y autoeficacia) involucradas en la regulación del en ojo, así como las posibles diferencias sexuales. Participaron 220 residentes que respondieron vol...

  12. Actitudes ante la violencia, bienestar subjetivo e individualismo en jóvenes mexicanos

    OpenAIRE

    Francisco A. Laca Arocena; Juan Carlos Mejía Ceballos

    2007-01-01

    Se evaluaron en 88 jóvenes mexicanos del estado de Colima (56 varones y 32 mujeres) las actitudes hacia la violencia y la delincuencia desde una doble perspectiva: cognitiva e ideológica, relacionando posteriormente estas actitudes con el bienestar subjetivo y el individualismo/colectivismo de los participantes. Se dis-cuten los resultados desde los supuestos teóricos de los tópicos citados que inciden particularmente en el aspecto intercultural, y cuestionando especialmente, ...

  13. Indoor tanning promotions on social media in six US cities #UVTanning #tanning.

    Science.gov (United States)

    Ricklefs, Christine A; Asdigian, Nancy L; Kalra, Heidi L; Mayer, Joni A; Dellavalle, Robert P; Holman, Dawn M; Crane, Lori A

    2016-06-01

    There is no research investigating indoor tanning advertising on social media. We assessed the use of social media to promote indoor tanning. We subscribed to social media platforms in six US cities and content-analyzed promotional messages received. We captured 662 messages on Twitter and Facebook, through salon emails, and in daily deal coupons. Salon postings were most frequent on Twitter and Facebook, with an average of 2-3 postings per week. National chains posted more frequently than local businesses. Forty percent of messages were devoid of tanning content and included photos, jokes, or popular references. Thirty percent mentioned price reductions, and 28 % referenced an upcoming holiday. Sunless tanning (17 %) was promoted more often than ultraviolet tanning (9 %). Tanning salons actively use social media as a strategy for maintaining relationships with customers and offer pricing deals that promote loyalty and high-frequency tanning.

  14. Bem-estar subjetivo e qualidade de vida em adeptos de ayahuasca

    Directory of Open Access Journals (Sweden)

    Cleber Lizardo de Assis

    2014-04-01

    Full Text Available O artigo estuda o bem-estar subjetivo dos adeptos de ayahuasca, a partir dos conceitos de qualidade de vida e bem-estar subjetivo. Discute os estudos que tratam da beberagem do chá nos rituais religiosos e a percepção desses sujeitos em relação a esses elementos psicossociais. Metodologicamente, o artigo relata os resultados de uma pesquisa qualitativa, de revisão bibliográfica e dados coletados em campo, com quatro sujeitos. Como resultados, destaca-se a existência de um bem-estar subjetivo a partir das seguintes categorias: desenvolvimento do autoconhecimento, favorecimento à prevenção ao uso/abuso de drogas, um maior domínio de si e do ambiente, além de uma melhoria no relacionamento social. Defende-se, finalmente, a relevância científica de estudos sobre este tema contemporâneo a fim de enriquecer o conhecimento de novos processos de subjetivação, de fen™menos socioculturais e de territórios com interfaces com a Psicologia.

  15. Phenomenology and psychopathology of excessive indoor tanning.

    Science.gov (United States)

    Petit, Aymeric; Karila, Laurent; Chalmin, Florence; Lejoyeux, Michel

    2014-06-01

    Excessive indoor tanning, defined by the presence of an impulse towards and repetition of tanning that leads to personal distress, has only recently been recognized as a psychiatric disorder. This finding is based on the observations of many dermatologists who report the presence of addictive relationships with tanning salons among their patients despite being given diagnoses of malignant melanoma. This article synthesizes the existing literature on excessive indoor tanning and addiction to investigate possible associations. This review focuses on the prevalence, clinical features, etiology, and treatment of this disorder. A literature review was conducted, using PubMed, Google Scholar, EMBASE and PsycINFO, to identify articles published in English from 1974 to 2013. Excessive indoor tanning may be related to addiction, obsessive-compulsive disorder, impulse control disorder, seasonal affective disorder, anorexia, body dysmorphic disorder, or depression. Excessive indoor tanning can be included in the spectrum of addictive behavior because it has clinical characteristics in common with those of classic addictive disorders. It is frequently associated with anxiety, eating disorders, and tobacco dependence. Further controlled studies are required, especially in clinical psychopathology and neurobiology, to improve our understanding of excessive indoor tanning.

  16. Personal UV biodosimeter for healthy indoor tanning

    Science.gov (United States)

    Terenetskaya, I. P.; Orlova, T. N.

    2008-04-01

    The practice of indoor tanning has led to the development of a large artificial tanning industry. In addition to psychological benefits, exposure to UVB light helps the body produce the activated form of vitamin D, which is necessary for many cellular functions. But uncontrolled tanning and UV overexposure can increase the risk of skin cancer. For direct checkout of the vitamin D synthetic capacity of a UV source the bio-equivalent UV dosimeter has been developed that is based on the same molecular photochemistry from which vitamin D is photosynthesized in human skin and makes possible both instrumental and visual indication of vitamin D synthesis.

  17. Many College Women Ignore Indoor Tanning's Risks

    Science.gov (United States)

    Skip navigation U.S. National Library of Medicine Menu ... Ignore Indoor Tanning's Risks 7 out of 10 surveyed overlook connection to skin cancer To use the sharing features on this page, please enable ...

  18. CIRCULATION IN BATHROOM TANNING TANNING INDUSTRIES WITHIN A CONTEXT OF CLEANER PRODUCTION

    OpenAIRE

    Salas Colotta, G.; Facultad de Química e Ingeniería Química. Universidad Nacional Mayor de San Marcos, Lima, Perú

    2014-01-01

    The main objective of the project is to demonstrate the feasibility of recycling pickling-tanning baths, ensuring the quality of the final product at ali times and achieving, on the one hand, the reduction of saline pollution (50%) caused by pickling and tanning baths and, on the other hand, the reduction of chromium salt (14%) in tanning wastewater. With regards to the anatytical parameters of the bath, the results show that the parameters analysed (pH, conductivity, density, chlorides, sulp...

  19. Trabajo informal: motivos, bienestar subjetivo, salud, y felicidad en vendedores ambulantes

    OpenAIRE

    Moyano Díaz,Emilio; Castillo Guevara,Ramón; Lizana Lizana,José

    2008-01-01

    Las relaciones entre trabajo, bienestar subjetivo (B.S.), felicidad y salud son complejas y de alto interés teórico y empírico. Ellas son analizadas aquí en trabajadores informales de comercio ambulante. Mediante observación y fotografías en las cinco ciudades más pobladas de la región del Maule (Chile), se registra 1556 puestos de venta de los que aleatoriamente se selecciona 258 para encuestar. Resultados: presentan una satisfacción vital global moderada, estando menos satisfechos con sus a...

  20. Validación de la Escala de Bienestar Subjetivo en cuidadores familiares de adultos mayores

    OpenAIRE

    López Dávalos, German; Universidad de Sonora; Domínguez Guedea, Miriam Teresa; Universidad de Sonora; Ochoa Marcobich, María Paola; Universidad de Sonora; Montiel Carvajal, María Martha; Universidad de Sonora; Laborín Álvarez, Jesús Francisco; Universidad de Sonora; Domínguez Guedea, Rosario Leticia; Universidad de Sonora; Valéz Lizárraga, Lília Lizeth; Universidad de Sonora; Zazueta Montaño, Denisse; Universidad de Sonora; Ibarra Flores, Elba; Universidad de Sonora

    2013-01-01

    El objetivo del presente trabajo fue la validación exploratoria de la Escala de Bienestar Subjetivo en cuidadores familiares de adultos mayores con diabetes mellitus tipo 2. Participaron 142 cuidadores familiares de la ciudad de Hermosillo, Sonora. La EBEMS, que reveló cuatro factores que explican el 55% de la varianza del constructo, resultó válida y confiable al identificar la situación afectiva y satisfacción con la vida, referentes valiosos en el diseño e implementación de programas de ap...

  1. LA CAPACIDAD Y EL BIENESTAR SUBJETIVO COMO DIMENSIONES DE ESTUDIO DE LA CALIDAD DE VIDA

    Directory of Open Access Journals (Sweden)

    Beatriz Yasuko Arita Watanabe

    2005-06-01

    Full Text Available La Calidad de vida es trabajada científicamente como un constructo muy amplio que abarca diversos significados pero en lo general apunta a la búsqueda de la explicación de la buena vida, aquella que se disfruta, que satisface al que la vive y que le produce estados de felicidad. De allí que sea la persona, desde su percepción, la que evalúe su propia vida, sus capacidades y, en el propio contexto, desarrolle mecanismos de búsqueda del bienestar personal. El Plan de Naciones Unidas para el Desarrollo (PNUD, al hablar de desarrollo humano utiliza un índice combinado que considera niveles de ingreso y educación así como la esperanza de vida de la población. Son medidas objetivas de capacidad centradas en la búsqueda de mejoría de las condiciones de vida de las personas. En México, sus planteamientos son retomados por la Secretaría de Desarrollo Social (Sedesol en su programa “Oportunidades†haciendo referencia a la capacidad de las personas. Este programa no alcanza a definir indicadores que permitan trabajar el estudio de la apreciación de la vida, respecto a las capacidades percibidas y la evaluación del resultado de vida. El objetivo de la presente investigación va dirigido a integrar el estudio de los indicadores objetivos y subjetivos de la capacidad junto con los indicadores del bienestar subjetivo (satisfacción por la vida y felicidad sentida, para considerar a la capacidad y al bienestar subjetivo como dimensiones de explicación de la calidad de vida. La medición de los niveles de ingreso y educación junto con escalas de capacidad para enfrentar la vida y de bienestar subjetivo es utilizada para correr un análisis factorial exploratorio en una muestra representativa de la población adulta de la Zona Urbana de Culiacán, México. Palabras clave: Calidad

  2. La capacidad y el bienestar subjetivo como dimensiones de estudio de la calidad de vida

    Directory of Open Access Journals (Sweden)

    Beatriz Yasuko Arita Watanabe

    2005-01-01

    Full Text Available La Calidad de vida es trabajada científicamente como un constructo muy amplio que abarca diversos significados pero en lo general apunta a la búsqueda de la explicación de la buena vida, aquella que se disfruta, que satisface al que la vive y que le produce estados de felicidad. De allí que sea la persona, desde su percepción, la que evalúe su propia vida, sus capacidades y, en el propio contexto, desarrolle mecanismos de búsqueda del bienestar personal. El Plan de Naciones Unidas para el Desarrollo (PNUD, al hablar de desarrollo humano utiliza un índice combinado que considera niveles de ingreso y educación así como la esperanza de vida de la población. Son medidas objetivas de capacidad centradas en la búsqueda de mejoría de las condiciones de vida de las personas. En México, sus planteamientos son retomados por la Secretaría de Desarrollo Social (Sedesol en su programa “Oportunidades” haciendo referencia a la capacidad de las personas. Este programa no alcanza a definir indicadores que permitan trabajar el estudio de la apreciación de la vida, respecto a las capacidades percibidas y la evaluación del resultado de vida. El objetivo de la presente investigación va dirigido a integrar el estudio de los indicadores objetivos y subjetivos de la capacidad junto con los indicadores del bienestar subjetivo (satisfacción por la vida y felicidad sentida, para considerar a la capacidad y al bienestar subjetivo como dimensiones de explicación de la calidad de vida. La medición de los niveles de ingreso y educación junto con escalas de capacidad para enfrentar la vida y de bienestar subjetivo es utilizada para correr un análisis factorial exploratorio en una muestra representativa de la población adulta de la Zona Urbana de Culiacán, México.

  3. Solar wind tans young asteroids

    Science.gov (United States)

    2009-04-01

    A new study published in Nature this week reveals that asteroid surfaces age and redden much faster than previously thought -- in less than a million years, the blink of an eye for an asteroid. This study has finally confirmed that the solar wind is the most likely cause of very rapid space weathering in asteroids. This fundamental result will help astronomers relate the appearance of an asteroid to its actual history and identify any after effects of a catastrophic impact with another asteroid. ESO PR Photo 16a/09 Young Asteroids Look Old "Asteroids seem to get a ‘sun tan' very quickly," says lead author Pierre Vernazza. "But not, as for people, from an overdose of the Sun's ultraviolet radiation, but from the effects of its powerful wind." It has long been known that asteroid surfaces alter in appearance with time -- the observed asteroids are much redder than the interior of meteorites found on Earth [1] -- but the actual processes of this "space weathering" and the timescales involved were controversial. Thanks to observations of different families of asteroids [2] using ESO's New Technology Telescope at La Silla and the Very Large Telescope at Paranal, as well as telescopes in Spain and Hawaii, Vernazza's team have now solved the puzzle. When two asteroids collide, they create a family of fragments with "fresh" surfaces. The astronomers found that these newly exposed surfaces are quickly altered and change colour in less than a million years -- a very short time compared to the age of the Solar System. "The charged, fast moving particles in the solar wind damage the asteroid's surface at an amazing rate [3]", says Vernazza. Unlike human skin, which is damaged and aged by repeated overexposure to sunlight, it is, perhaps rather surprisingly, the first moments of exposure (on the timescale considered) -- the first million years -- that causes most of the aging in asteroids. By studying different families of asteroids, the team has also shown that an asteroid

  4. Elementos mediadores de la felicidad y el bienestar subjetivo en hombres y mujeres

    Directory of Open Access Journals (Sweden)

    Rozzana Sánchez Aragón

    2011-12-01

    Full Text Available La felicidad se identifica como una emoción básica y como una de las principales metas humanas que acompañan al ser humano por su travesía en la vida. La presente investigación se propuso explorar las diferencias sexuales y las relaciones entre elementos mediadores de la felicidad (cultura, recursos personales, auto-monitoreo, procesos de regulación emocional y el bienestar subjetivo con la pareja, la familia, los amigos, el trabajo, el autoconcepto y las necesidades básicas. Se trabajó con una muestra no probabilística de N = 203 estudiantes universitarios de la Ciudad de México quienes en forma voluntaria respondieron a una batería de pruebas de ejecución, máxima y típica, validada previamente. Los resultados muestran la supremacía de las mujeres en las habilidades emocionales así como en la expresión emocional, mientras lo que predominó en los hombres fue el ejercicio de estrategias de control emocional. Asimismo, se encontraron mayor cantidad de relaciones y estos eran más fuertes entre los elementos mediadores de la felicidad con el bienestar subjetivo de las mujeres en su relación de pareja y autoconcepto, mientras que en los hombres se refleja en su relación con los amigos, principalmente.

  5. CORRELATOS ENTRE BIENESTAR SUBJETIVO Y REGULACIÓN EMOCIONAL DEL ENOJO: DIFERENCIAS POR SEXO

    Directory of Open Access Journals (Sweden)

    Magali Martínez Pérez

    2014-01-01

    Full Text Available Las experiencias emocionales negativas se asocian con el bienestar subjetivo, pero se ignora si la manera de regularlas se relaciona con los reportes de bienestar. El presente estudio exploró la asociación entre el bienestar percibido y ciertas variables culturales (premisas histórico-socio-culturales e individuales (automonitoreo, estrategias y autoeficacia involucradas en la regulación del en ojo, así como las posibles diferencias sexuales. Participaron 220 residentes que respondieron voluntariamente una batería de pruebas. Se encontró que las creencias culturales y el uso de estrategias que disminuyen la intensidad del enojo se asocian positivamente con el bienestar con amigos y trabajo, y que hay más similitudes que diferencias entre hombres y mujeres en las variables evaluadas. Los hallazgos señalan la importancia de regular apropiadamente emociones negativas como el enojo, a fin de incrementar el bienestar subjetivo de hombres y mujeres.

  6. Applicative chemistry of tanning metallic heterocomplexes

    CERN Document Server

    Gaidau, Carmen

    2013-01-01

    The chemistry of heterocomplex compounds is a fascinating field for experts in chemical synthesis and structural analysis, and for technologists specializing in leather processing. This volume describes the vast theoretical and practical possibilities of exploiting the action synergism of metals with different collagen cross-linking capacity. The possibility of reducing chromium content from leather tanning agents by replacing it with other tanning metals has significant environmental implications and minimum changes in terms of quality and production costs of natural leather, and is a viable

  7. Comparison of tanning with flour Caesalpinia Spinosa, with mineral tanning with skins chrome sulphate chervines

    OpenAIRE

    Hidalgo Almeida, Luis Eduardo; Universidad Nacional Mayor de San Marcos

    2016-01-01

    In the lab of tannery skins of the FCP, the ESPOCH was the comparison of tanning with extract of plant polyphenols in Caesalpinia Spinosa, with a mineral tanning of sulfate of chromium for goat skins, i.e. 2 treatments with 7 repetitions each one, and in two consecutive runs a total of 28 experimental units were modeled under a completely randomized design in bivariate array. The results indicate that the most suitable tanning was to use plant polyphenols Caesalpinia Spinosa, (tara), since it...

  8. Factores Asociados al Bienestar Subjetivo en el Adulto Mayor Factors Associated With Subjetive Well-Being in Older People

    Directory of Open Access Journals (Sweden)

    Rafael Mella

    2004-05-01

    Full Text Available La presente investigación explora la relación entre los distintos factores asociados a la salud mental y el bienestar subjetivo en el adulto mayor. Específicamente, considera bienestar subjetivo, edad, depresión, salud percibida, apoyo social percibido, género y nivel socioeconómico. El análisis bivariado arroja correlaciones significativas entre bienestar sujetivo y depresión (r = -0.634, apoyo social percibido y bienestar subjetivo (r = 0.665 y bienestar subjetivo y salud percibida (r = 0.278. También aparecen como significativas las correlaciones entre salud percibida y depresión (r = -0.454, depresión y apoyo social percibido (r = -0.601 y entre salud percibida y apoyo social percibido (r = 0.305. En el análisis de regresión lineal múltiple, el bienestar subjetivo está determinado principalmente por apoyo social percibido, género y por la ausencia de depresión.The present research explores the relationship between different factors associated to the mental health and subjetive well-being in older people: subjetive well-being, age, depression, perceived health, perceived social support and socio-economic status. Bivariate analysis shows significant correlations between subjetive well-being and depressión (r = -0.634, subjetive well-being and perceived social support (r = 0.665, and subjetive well-being and perceived health (r = 0.278. There are also significant correlations between perceived health and depression (r = -0.454, depression and perceived social support (r = -0.601, and perceived health and perceived social support (r = 0.305. In the multiple linear regression analysis, subjetive well-being is determinated by perceived social support, gender and absence of depression.

  9. Bienestar subjetivo, renta y bienes relacionales. Los determinantes de la felicidad en España

    Directory of Open Access Journals (Sweden)

    Iglesias Vázquez, Emma

    2013-12-01

    Full Text Available In the present paper we analyze the determinants of happiness proxying by subjective welfare. The main objective is twofold: on the one hand, to put to the test the Easterlin’s paradox (the lack of a direct relationship between income and subjective wellbeing at aggregate level and, on the other hand, to weight influence of relational goods in determining happiness. The analytical framework adopts the perspective of happiness economics and the empirical evidence is derived from the estimation of a microeconometric function of happiness applying a Logit model both when using cross sectional and panel data. The results show that in Spanish society income plays a secondary and subjective role, while other variables that are associated directly or indirectly to relational goods are revealed to be very important.En el presente trabajo se analizan los determinantes de la felicidad, entendida esta como satisfacción subjetiva revelada. El principal objetivo tiene un doble componente: por un lado, se trata de contrastar la paradoja de Easterlin para la sociedad española (ausencia de un vínculo directo entre el incremento de la renta per capita y la evolución del bienestar subjetivo revelado a nivel agregado y, por otro, evaluar el papel que desempeñan los bienes relacionales como determinantes de la felicidad. El marco analítico adoptado se encuadra dentro de la denominada happiness economics y la evidencia empírica se deriva de la estimación de una función microeconométrica de la felicidad aplicando un modelo Logit tanto en cortes temporales como en datos de panel. Los resultados obtenidos permiten concluir que en España el ingreso desempeña un papel secundario y subjetivo, mientras que se revelan como importantes las variables asociadas directa o indirectamente a los bienes relacionales.

  10. Bibliotecas Digitales: algo viejo, algo nuevo y algo prestado

    Directory of Open Access Journals (Sweden)

    Paz Chanes, Claudia

    2001-11-01

    Full Text Available ‘Bibliotecas digitales’ … ¿estamos hablando de una novela de Isaac Asimov o Ursula LeGuin? ¿Aludimos a alguna escena futurista de una película de ciencia ficción? ¿Entrevemos instrumentos utópicos salidos de una imaginación vanguardista?. No. Las bibliotecas digitales ya han llegado y están entre nosotros. Casi sin darnos cuenta y sin mucho tiempo para reflexionar sobre ellas, se han instalado en nuestro entorno de una manera impensable hace unas décadas; un entorno que se va perfeccionando con el tiempo, de un modo que a veces nos hace preguntarnos cómo se estudiaba e investigaba antes de su llegada.

  11. Bienestar subjetivo en la vida adulta y en la vejez: hacia una psicología positiva ; en América Latina

    Directory of Open Access Journals (Sweden)

    Anita Liberalesso Neri

    2002-01-01

    Full Text Available Este artículo se centra en una perspectiva positiva de la psicología, para analizar el bienestar subjetivo durante la adultez y la vejez. Revisa diversas concepciones, indicadores y correlatos, tanto sociodemográficos, como socioculturales del bienestar subjetivo; presenta alternativas de evaluación del mismo, e investigaciones internacionales y, sobre todo, brasileñas sobre el particular. Hace énfasis en procesos psicológicos asociados con el funcionamiento del self (sí mismo como regulador, mediador y motivador del bienestar subjetivo. Finalmente, aboga por invertir esfuerzos en la investigación sistemática del bienestar subjetivo y del bienestar psicológico, con el ánimo de conocer su efecto sobre los procesos de adaptación de las personas durante el ciclo vital.

  12. Ultrasound assisted chrome tanning: Towards a clean leather production technology.

    Science.gov (United States)

    Mengistie, Embialle; Smets, Ilse; Van Gerven, Tom

    2016-09-01

    Nowadays, there is a growing demand for a cleaner, but still effective alternative for production processes like in the leather industry. Ultrasound (US) assisted processing of leather might be promising in this sense. In the present paper, the use of US in the conventional chrome tanning process has been studied at different pH, temperature, tanning time, chrome dose and US exposure time by exposing the skin before tanning and during tanning operation. Both prior exposure of the skin to US and US during tanning improves the chrome uptake and reduces the shrinkage significantly. Prior exposure of the skin to US increase the chrome uptake by 13.8% or reduces the chrome dose from 8% to 5% (% based on skin weight) and shorten the process time by half while US during tanning increases the chrome uptake by 28.5% or reduces the chrome dose from 8% to 4% (half) and the tanning time to one third compared to the control without US. Concomitantly, the resulting leather quality (measured as skin shrinkage) improved from 5.2% to 3.2% shrinkage in the skin exposed to US prior tanning and to 1.3% in the skin exposed to US during the tanning experiment. This study confirms that US chrome tanning is an effective and eco-friendly tanning process which can produce a better quality leather product in a shorter process time with a lower chromium dose.

  13. Volcanic geomorphology using TanDEM-X

    Science.gov (United States)

    Poland, Michael; Kubanek, Julia

    2016-04-01

    Topography is perhaps the most fundamental dataset for any volcano, yet is surprisingly difficult to collect, especially during the course of an eruption. For example, photogrammetry and lidar are time-intensive and often expensive, and they cannot be employed when the surface is obscured by clouds. Ground-based surveys can operate in poor weather but have poor spatial resolution and may expose personnel to hazardous conditions. Repeat passes of synthetic aperture radar (SAR) data provide excellent spatial resolution, but topography in areas of surface change (from vegetation swaying in the wind to physical changes in the landscape) between radar passes cannot be imaged. The German Space Agency's TanDEM-X satellite system, however, solves this issue by simultaneously acquiring SAR data of the surface using a pair of orbiting satellites, thereby removing temporal change as a complicating factor in SAR-based topographic mapping. TanDEM-X measurements have demonstrated exceptional value in mapping the topography of volcanic environments in as-yet limited applications. The data provide excellent resolution (down to ~3-m pixel size) and are useful for updating topographic data at volcanoes where surface change has occurred since the most recent topographic dataset was collected. Such data can be used for applications ranging from correcting radar interferograms for topography, to modeling flow pathways in support of hazards mitigation. The most valuable contributions, however, relate to calculating volume changes related to eruptive activity. For example, limited datasets have provided critical measurements of lava dome growth and collapse at volcanoes including Merapi (Indonesia), Colima (Mexico), and Soufriere Hills (Montserrat), and of basaltic lava flow emplacement at Tolbachik (Kamchatka), Etna (Italy), and Kīlauea (Hawai`i). With topographic data spanning an eruption, it is possible to calculate eruption rates - information that might not otherwise be available

  14. Efectos diferenciales del bienestar subjetivo, autorrealización y celos en las fases del amor pasional

    Directory of Open Access Journals (Sweden)

    Rozzana Sánchez Aragón

    2009-01-01

    Full Text Available El presente estudio exploró en 348 hombres y mujeres de dos ciudades de la República Mexicana las diferencias en la autorrealización, el bienestar subjetivo y los celos en las cuatro fases del amor pasional: atracción, enamoramiento, amor obsesivo y amor desesperado. Los resultados indican los efectos diferenciales por sexo, ciudad de procedencia y etapas de la pasión en dichas áreas.

  15. Estilos de afrontamiento al estrés y bienestar subjetivo en adolescentes y jóvenes

    Directory of Open Access Journals (Sweden)

    J. Isaac Uribe-Alvarado

    2013-03-01

    Full Text Available Con la investigación buscamos determinar la relación entre el nivel de Bienesta Subjetivo y los Estilos de Afrontamiento al Estrés en adolescentes y jóvenes de Colima, México. En el estudio participaron 436 estudiantes con rango de edad de 15 a 24 años. Para recabar la información utilizamos la escala de Modos de Afrontamiento de Lazarus y Folkman (versión adaptada de Sandin & Chorot, 2003 y la Escala Multidimensional para la medición del Bienestar Subjetivo (Anguas- Plata & Reyes, 1998. Los resultados indican que los adolescentes y las adolescentes mantienen un promedio más alto de bienestar subjetivo que los sujetos jóvenes, y que el estilo de afrontamiento que más utilizan es el de aceptación de la responsabilidad, mientras que el menos utilizado es la huídaevitación.

  16. Estilos de afrontamiento al estrés y bienestar subjetivo en adolescentes y jóvenes

    Directory of Open Access Journals (Sweden)

    Julio César Verdugo-Lucero

    2013-01-01

    Full Text Available Con la investigación buscamos determinar la relación entre el nivel de Bienestar Subjetivo y los Estilos de Afrontamiento al Estrés en adolescentes y jóvenes de Colima, México. En el estudio participaron 436 estudiantes con rango de edad de 15 a 24 años. Para recabar la información utilizamos la escala de Modos de Afrontamiento de Lazarus y Folkman (versión adaptada de Sandin & Chorot, 2003 y la Escala Multidimensional para la medición del Bienestar Subjetivo (AnguasPlata & Reyes, 1998. Los resultados indican que los adolescentes y las adolescentes mantienen un promedio más alto de bienestar subjetivo que los sujetos jóvenes, y que el estilo de afrontamiento que más utilizan es el de aceptación de la responsabilidad, mientras que el menos utilizado es la huídaevitación.

  17. TanDEM-X Bistatic SAR Processing

    OpenAIRE

    Balss, Ulrich; Niedermeier, Andreas; Breit, Helko

    2010-01-01

    In June, 2010 the German SAR satellite TanDEM-X (TerraSAR-X-Add-on for Digital Elevation Measurements) will be launched. Together with TerraSAR-X, launched June 15, 2007, it will form the first spaceborne bistatic SAR platform. Usually one of the satellite is transmitting (active satellite), while both are receiving. As both satellites fly in a helix orbit constellation, during a recording a satellite has to be passive, if the other one is close to the line of sight to the observation targ...

  18. Bienestar Subjetivo y Calidad de Vida en la Infancia en Chile

    Directory of Open Access Journals (Sweden)

    Juan Carlos Oyanedel

    2015-02-01

    Full Text Available El artículo presenta los resultados de la Encuesta Internacional sobre Bienestar Subjetivo infantil (ISCWeB, aplicada en Chile en el año 2012. El cuestionario fue aplicado a una muestra de 2.734 niños y niñas, de 8, 10 y 12 años, residentes de las tres principales zonas urbanas del país. Los resultados dan cuenta de una alta satisfacción con la vida, existiendo diferencias al considerar las variables nivel socioeconómico y sexo, así como también distintos aspectos. Los ámbitos mejor evaluados corresponden a la familia, bienes materiales, y salud; en detrimento de aspectos como el barrio y el colegio. Asimismo, se observa que el conocimiento y percepción de que se respetan los derechos de los niños y niñas, disminuye con la edad. Las conclusiones enfatizan la necesidad de profundizar en el estudio de esta temática.

  19. El valor de los apoyos para el bienestar subjetivo al vivir con esquizofrenia

    Directory of Open Access Journals (Sweden)

    Daniel Ricardo Zaraza Morales

    Full Text Available Este artículo es el resultado de una investigación cualitativa que se realizó con la participación de un grupo de personas con esquizofrenia y sus familiares, en Medellín (Colombia. El objetivo fue comprender los aspectos que promueven la salud mental en las personas con esquizofrenia y sus familias, teniendo en cuenta su experiencia subjetiva. Se realizaron ocho entrevistas en profundidad y dos grupos focales para la recolección de la información, la cual se analizó bajo los planteamientos de la Teoría Fundamentada de Strauss y Corbin. La categoría interpretativa que surgió durante el análisis fue "El valor de los apoyos, un punto subjetivo en la experiencia de vivir con esquizofrenia", la cual revela la importancia que tiene, para quienes viven y conviven con la enfermedad, el fortalecimiento de los apoyos personales, familiares y sociales disponibles, pues estos favorecen la sensación de bienestar y el camino hacia la recuperación.

  20. LA EVALUACIÓN DE ENFERMEDADES. Un enfoque de bienestar subjetivo

    Directory of Open Access Journals (Sweden)

    Mariano Rojas

    2011-01-01

    Full Text Available Este artículo utiliza el enfoque de bienestar subjetivo para evaluar el costo personal de una enfermedad. El enfoque constituye una opción a metodologías basadas en preferencias reveladas y enunciadas. Parte de que la presencia de enfermedad deteriora la satisfacción con la salud de las personas, mientras que aumentos en el ingreso mejoran esa satisfacción. Por tanto, es posible calcular el ingreso compensatorio ante la presencia de enfermedad de manera que la satisfacción con la salud permanezca constante. Este cálculo indica el valor monetario de la enfermedad, y puede interpretarse también como el valor monetario de los beneficios provenientes de programas que corrigen o evitan un problema de salud. La ilustración empírica se basa en datos de encuestas representativas nacionales realizadas en Costa Rica. La aplicación del enfoque se ilustra con base en la evaluación de cuatro enfermedades diagnosticadas.

  1. Molecular spectroscopic study for suggested mechanism of chrome tanned leather

    Science.gov (United States)

    Nashy, Elshahat H. A.; Osman, Osama; Mahmoud, Abdel Aziz; Ibrahim, Medhat

    2012-03-01

    Collagen represents the structural protein of the extracellular matrix, which gives strength of hides and/or skin under tanning process. Chrome tan is the most important tanning agent all over the world. The methods for production of leather evolved over several centuries as art and engineering with little understanding of the underlying science. The present work is devoted to suggest the most probable mechanistic action of chrome tan on hide proteins. First the affect of Cr upon hide protein is indicated by the studied mechanical properties. Then the spectroscopic characterization of the hide protein as well as chrome tanned leather was carried out with Horizontal Attenuated Total Reflection (HATR) FT-IR. The obtained results indicate how the chromium can attached with the active sites of collagen. Molecular modeling confirms that chromium can react with amino as well as carboxylate groups. Four schemes were obtained to describe the possible interactions of chrome tan with hide proteins.

  2. Modeling of TAN in recirculating aquaculture systems by AQUASIM

    DEFF Research Database (Denmark)

    Arvin, Erik; Pedersen, Lars-Flemming

    2011-01-01

    Modeling of total ammonium nitrogen (TAN) in recirculating aquaculture systems (RAS) contribute to identifying and quantifying the most important processes and their relative contribution to removal of TAN. AQUASIM is a flexible modular simulation system for water quality in natural and technical...... systems developed by EAWAG (Reichert, 1994). AQUASIM allows simulating complex biological, chemical and physical processes in standardized hydraulic systems. We used AQUASIM to model the steady state TAN concentrations in 12 experimental recirculating aquaculture systems (RAS) operated by DTU AQUA...

  3. Preventing skin cancer through reduction of indoor tanning: current evidence.

    Science.gov (United States)

    Watson, Meg; Holman, Dawn M; Fox, Kathleen A; Guy, Gery P; Seidenberg, Andrew B; Sampson, Blake P; Sinclair, Craig; Lazovich, DeAnn

    2013-06-01

    Exposure to ultraviolet radiation from indoor tanning devices (tanning beds, booths, and sun lamps) or from the sun contributes to the risk of skin cancer, including melanoma, which is the type of skin cancer responsible for most deaths. Indoor tanning is common among certain groups, especially among older adolescents and young adults, adolescent girls and young women, and non-Hispanic whites. Increased understanding of the health risks associated with indoor tanning has led to many efforts to reduce use. Most environmental and systems efforts in the U.S. (e.g., age limits or requiring parental consent/accompaniment) have occurred at the state level. At the national level, the U.S. Food and Drug Administration and the Federal Trade Commission regulate indoor tanning devices and advertising, respectively. The current paper provides a brief review of (1) the evidence on indoor tanning as a risk factor for skin cancer; (2) factors that may influence use of indoor tanning devices at the population level; and (3) various environmental and systems options available for consideration when developing strategies to reduce indoor tanning. This information provides the context and background for the companion paper in this issue of the American Journal of Preventive Medicine, which summarizes highlights from an informal expert meeting convened by the CDC in August 2012 to identify opportunities to prevent skin cancer by reducing use of indoor tanning devices.

  4. Base nacional curricular comum: a falsa oposição entre conhecimento para fazer algo e conhecimento em si

    Directory of Open Access Journals (Sweden)

    Elizabeth Macedo

    2016-06-01

    Full Text Available RESUMO: Assumindo uma visão da política como processo de signifiXação a partir da teoria do discurso de Ernesto Laclau e Chantal Mouffe, foco o atual debate sobre bases nacionais curriculares comuns no Brasil. Sendo o antagonismo social inerradicável, defendo que o terreno político é sempre marcado por articulações entre uma pluralidade de demandas. Utilizo a experiência da Austrália como ponto de partida para destacar duas ideias que se antagonizam nas discussões sobre base curricular comum no Brasil, quais sejam: conhecimento para fazer algo e conhecimento em si. Após analisar a oposição entre elas, argumento que a disputa naturaliza o sentido de currículo como controle, ideia que tento deslocar entendendo educação, justiça e democracia como porvir.

  5. BEM-ESTAR SUBJETIVO EM PARTICIPANTES DO PROGRAMA MULHERES MIL, NA CIDADE DE BARBACENA - MG

    Directory of Open Access Journals (Sweden)

    Fabianne Furtado

    2012-09-01

    Full Text Available Introdução: as mulheres já são mais da metade da população brasileira. Entretanto, na hora da busca pelo emprego, o público feminino está em desvantagem. Muitas não tem qualificação e experiência profissional. O Programa Mulheres Mil foi implantado nos Institutos Federais (IFs com o objetivo de oferecer as bases de uma política social de inclusão, por meio do qual as mulheres em situação de vulnerabilidade social tem acesso à educação profissional, emprego e renda. Objetivo: avaliar o bem-estar subjetivo em participantes do Programa Mulheres Mil, na cidade de Barbacena-MG. Métodos: Após aprovação do Comitê de Ética em Pesquisa, 41 mulheres de 5 bairros distintos da cidade de Barbacena foram selecionadas, de acordo com critérios de inclusão pré-determinados. No dia da matrícula, responderam, por meio de entrevista, ao Questionário de Saúde Geral e às escalas de Autoestima, de Ansiedade e Depressão, de Afetos Positivos e Negativos e de Satisfação com a Vida, todos cientificamente validados para uso no Brasil. Posteriormente, após 3 e 6 meses de participação no Programa, todas as mulheres foram reavaliadas. Resultados: nos 3º e 6º meses, as alunas apresentaram melhora nos itens que avaliaram a saúde geral. Apesar de estatisticamente não significante, clinicamente a satisfação com a vida progrediu favoravelmente durante a participação no Programa.

  6. Violência, culpa e ato: causas e efeitos subjetivos em adolescentes

    Directory of Open Access Journals (Sweden)

    Henrique Figueiredo Carneiro

    2010-12-01

    Full Text Available Este trabalho apresenta um relato de pesquisa realizada sobre a violência e o adolescente, evidenciando o objetivo, as causas e os efeitos subjetivos que desencadeiam a violência na atualidade. Apresenta também uma investigação qualitativa com referencial teórico-conceitual da psicanálise, em destaque os conceitos de mal-estar, lei, anomia, limites, laços sociais, necessidade, desejo, culpa, passagem ao ato, individualismo, discurso capitalista, amor, vida e morte. Foram utilizados fotografias e fragmentos de filmes apresentados aos adolescentes inseridos no projeto Pró-jovem, desenvolvido na cidade de Maracanaú, Ceará, Brasil. As análises confirmaram os pressupostos da pesquisa de que a violência guarda relação direta com a ineficácia dos discursos normativos, que a culpa não comparece em consequência dos atos desfechados contra o próximo e que o sujeito não se guia por uma referência mítica do representante da lei.(* Colaboradores da pesquisa: doutora Marta Gerez Ambertín (Universidad de Santiago del Estero - Argentina; mestra em Psicologia Márcia Batista dos Santos (Universidade de Fortaleza - Brasil; alunos de Mestrado em Psicologia: Thiago Costa Matos Carneiro da Cunha (Labio, Rossana Vaz Borja (Labio, Carla Renata Braga de Souza (Labio/Leipcs, Lisieux D’Jesus Luzia de Araújo Rocha (Labio/Otium - Universidade de Fortaleza - Brasil; graduado em Psicologia Marcus Vinicius Ximenes Rocha (Universidade de Fortaleza – Brasil; bolsista de I. C. CNPq: Ricardo Pinheiro Maia Júnior; bolsista de I. C. Funcap: Rayana Silva Lima (Universidade de Fortaleza. Projeto apoiado pelo CNPq por meio de Bolsa de Produtividade em Pesquisa concedida ao Prof. Dr. Henrique Figueiredo Carneiro.

  7. Dynamics of Drying in Phenolically Tanned Materials

    Institute of Scientific and Technical Information of China (English)

    Julian F. V. Vincent

    2004-01-01

    The cuticle of a maggot goes through a mechanical transition when it dries, increasing in stiffness by about an order of magnitude (e. g. from 0.5 GPa to 5 GPa) as the water content drops from about 1 g/g (weight of water per unit dry weight) to 0.4 g/g. Thus stiffness represents the loss of freezable water and is more or less diagnostic of a material stabilized by hydrogen bonds. Further loss in water results in a smaller increase in stiffness. In natural systems the water content is controlled by the addition of phenolic residues, resulting in tanning or sclerotisation, which drives the matrix components towards co-operative interaction and makes the material permanently waterproof.

  8. Spondilodiskitis tanı ve tedavisi

    OpenAIRE

    Aydinli, Ufuk

    2004-01-01

    Bu çalışmada 4 sponilodiskit olgusu sunuldu ve tartışıldı. Olguların 3'ü erkek, 1'i kadın olup yaşları 17 ile 63 arasında değişmekle idi. Olguların ana şikayeti sırt ve bel ağrısı olup tanı konulana kadar geçen süre 1,5-7 ay arasında idi. İki olguda batın ve loraks operasyonu öyküsü olup, bir olguda ise kronik böbrek yetmezliği vardı. Enfeksiyona neden olan mikroorganizma iki olguda stafilokoküs aureus, bir olguda psödomonas aeroginosa ve bir olguda ise stafilokoküs epidermidis idi....

  9. Trabajo informal: motivos, bienestar subjetivo, salud, y felicidad en vendedores ambulantes Trabalho informal: motivos, bem-estar subjetivo, saúde e felicidade de vendedores ambulantes Informal work: motives, well being, health and happiness in street vendors

    OpenAIRE

    Emilio Moyano Díaz; Ramón Castillo Guevara; José Lizana Lizana

    2008-01-01

    Las relaciones entre trabajo, bienestar subjetivo (B.S.), felicidad y salud son complejas y de alto interés teórico y empírico. Ellas son analizadas aquí en trabajadores informales de comercio ambulante. Mediante observación y fotografías en las cinco ciudades más pobladas de la región del Maule (Chile), se registra 1556 puestos de venta de los que aleatoriamente se selecciona 258 para encuestar. Resultados: presentan una satisfacción vital global moderada, estando menos satisfechos con sus a...

  10. Tan's distributions and Fermi-Huang pseudopotential in momentum space

    DEFF Research Database (Denmark)

    Valiente, Manuel

    2012-01-01

    form of the Fourier-transformed pseudopotential remains very simple. Operator forms for the so-called Tan's selectors, which, together with Fermi-Huang pseudopotential, largely simplify the derivation of Tan's universal relations for the Fermi gas, are here derived and are also very simple. A momentum...

  11. 78 FR 34874 - Indoor Tanning Services; Excise Taxes

    Science.gov (United States)

    2013-06-11

    ... similar program. In the case of promotions that entitle a customer to a ``free'' tan with the purchase of... point-of- sale software programs that automatically calculate the tax on the sale of indoor tanning... these types of sales, a process that the commenters said is time consuming, expensive, and prone...

  12. Bienestar subjetivo e imagen corporal en estudiantes universitarias de Arequipa/ Subjective wellbeing and body image in college students in Arequipa

    Directory of Open Access Journals (Sweden)

    Andrea Prieto Vela

    2015-12-01

    Full Text Available RESUMEN Este estudio exploró la correlación entre el bienestar subjetivo y la imagen corporal de las estudiantes mujeres en una universidad de Arequipa. La muestra estuvo constituida de 155 estudiantes mujeres entre los 17 y 24 años de las tres carreras profesionales. Las participantes fueron evaluadas en sus respectivos salones. La validación del Cuestionario de la Imagen Corporal (BSQ fue calculada con Alfa de Cronbach y se obtuvo un valor de 0.92. Los resultados indicaron que existe una correlación negativa significativa entre el bienestar subjetivo y la imagen corporal (r = -0.478; p 0.05 y a la imagen corporal (t = -0.606; p > 0.05. Esto muestra que la distorsión de la imagen corporal tiene un impacto negativo en el bienestar subjetivo de las estudiantes universitarias mujeres. ABSTRACT This study explored the correlation between subjective wellbeing and body image of female students at a university in Arequipa. The sample consisted by 155 female students between 17 and 24 years old from the three professional careers. The participants were evaluated in their respective classrooms. The validation of the Body Shape Questionnaire (BSQ was calculated using Cronbach’s alpha and obtained a value of 0.92. The results indicated that there is significant negative correlation between the subjective wellbeing and body image (r = -0.478; p 0.05 and body image (t = -0.606; p > 0.05. This shows that the distortion of body image has a negative impact on the subjective wellbeing of women university students.

  13. Os sentidos subjetivos produzidos por uma m??e com filho autista: uma discuss??o hist??rico-cultural

    OpenAIRE

    Ara??jo, Camila Zacarias Lima

    2016-01-01

    Nesse artigo, conversaremos acerca dos desdobramentos subjetivos do processo do diagn??stico do autismo para as m??es e fam??lia a partir da discuss??o da teoria da subjetividade, proposta por Gonz??lez Rey e fundamentada no enfoque hist??ricocultural. Busco discutir sobre como receber o diagn??stico do transtorno do espectro autista se constitui na subjetividade das m??es, como ?? para elas ter um filho com autismo na sociedade atual em que vivemos, com uma l??gica crescente da medicaliza...

  14. Relações entre o bem-estar subjetivo e a funcionalidade em idosos em seguimento ambulatorial

    OpenAIRE

    Sposito,Giovana; Diogo, Maria J D'Elboux; Cintra, Fernanda Ap.; Neri, Anita L; Guariento,Maria E.; De Sousa,Maria L. R.

    2010-01-01

    OBJETIVO: Este estudo teve como objetivo verificar a relação entre o bem-estar subjetivo, independência funcional e desempenho de membros inferiores (força muscular, velocidade de marcha e equilíbrio) de idosos em seguimento ambulatorial, em relação ao sexo e a grupos etários. MÉTODOS: Foram avaliados 125 idosos de ambos os sexos com idade mínima de 60 anos, atendidos em um ambulatório de geriatria. Os instrumentos utilizados foram: 1) Medida da Independência Funcional (MIF) para avaliar a de...

  15. Does the Portrayal of Tanning in Australian Women's Magazines Relate to Real Women's Tanning Beliefs and Behavior?

    Science.gov (United States)

    Dixon, Helen G.; Warne, Charles D.; Scully, Maree L.; Wakefield, Melanie A.; Dobbinson, Suzanne J.

    2011-01-01

    Content analysis data on the tans of 4,422 female Caucasian models sampled from spring and summer magazine issues were combined with readership data to generate indices of potential exposure to social modeling of tanning via popular women's magazines over a 15-year period (1987 to 2002). Associations between these indices and cross-sectional…

  16. El bienestar subjetivo como enfoque e instrumento de la política pública: una revisión analítica de la literatura

    OpenAIRE

    Castellanos-Cereceda, Roberto

    2012-01-01

    ¿Qué utilidad tiene el enfoque de bienestar subjetivo para el estudio, análisis y hechura de la política pública? En este trabajo argumento que la utilidad se aprecia en varios aspectos. El enfoque de bienestar subjetivo ofrece nuevas formas de poner a prueba supuestos básicos del análisis económico y social sobre el comportamiento humano; ofrece herramientas de análisis que dan una perspectiva diferente y complementaria a mediciones y enfoques tradicionales sobre los aspectos que más importa...

  17. Estudio de los trastornos subjetivos del lenguaje y comunicación en usuarios de una asociación de personas con enfermedad mental

    OpenAIRE

    2014-01-01

    Introducción: Las enfermedades mentales son unos trastornos que presentan una prevalencia muy elevada en todo el mundo y son numerosos los que autores manifiestan la relación de estas patologías con el lenguaje y la comunicación. Para el estudio de los trastornos subjetivos del lenguaje no existen un elevado número de estudios previos ni pruebas para evaluarlo. Objetivo: Se pretende establecer la presencia e intensidad de los trastornos subjetivos del lenguaje en los trastornos mentales grave...

  18. Bem-estar subjetivo e senso de ajustamento psicológico em idosos que sofreram acidente vascular cerebral: uma revisão

    OpenAIRE

    Rabelo, Dóris Firmino; Néri,Anita Liberalesso

    2006-01-01

    Foi feito um levantamento dos estudos brasileiros e estrangeiros publicados entre 1996 e 2005 que relacionavam bem-estar subjetivo, senso de ajustamento psicológico e acidente vascular cerebral, com o objetivo de identificar variáveis mediadoras dessa relação em idosos. Estudos transversais e prospectivos indicaram que os afetados por acidente vascular cerebral apresentam menor bem-estar subjetivo quando comparados com a população geral. Boa capacidade cognitiva, suporte social efetivo, conti...

  19. Terapia com placa oclusal com e sem guias anteriores de desoclusão em pacientes com disfunção temporomandibular e zumbido subjetivo

    OpenAIRE

    2012-01-01

    O objetivo deste estudo foi avaliar o efeito de placas oclusais com guias anteriores de desoclusão e placas oclusais com contatos bilaterais e anteriores simultâneos durante os movimentos excursivos da mandíbula em pacientes com disfunção temporomandibular (DTM) e zumbido subjetivo. Foram avaliados 264 pacientes encaminhados para tratamento da DTM na FORP/USP e selecionados 32 mulheres com DTM muscular, associada ou não a DTM articular, e zumbido subjetivo que preencheram os critérios de incl...

  20. Historical aphasia cases: "Tan-tan", "Vot-vot", and "Cré nom!"

    Directory of Open Access Journals (Sweden)

    Hélio A.G. Teive

    2011-06-01

    Full Text Available We describe three cases of aphasia in patients who were internationally famous historical personalities, such as the case of Mr. Leborgne ("Tan" published by Paul Broca in 1861, which became a reference for the study of aphasias. The other cases described here are those of the Russian revolutionary and politician Vladimir Ilyitch Ulianov (Lenin ("Vot-vot" and the French poet Charles Baudelaire ("Cré nom!". Besides their historical relevance and the clinical picture of aphasia, these three cases share as a common feature the occurrence of speech automatisms or stereotypes.

  1. Historical aphasia cases: "Tan-tan", "Vot-vot", and "Cré nom!".

    Science.gov (United States)

    Teive, Hélio A G; Munhoz, Renato P; Caramelli, Paulo

    2011-06-01

    We describe three cases of aphasia in patients who were internationally famous historical personalities, such as the case of Mr. Leborgne ("Tan") published by Paul Broca in 1861, which became a reference for the study of aphasias. The other cases described here are those of the Russian revolutionary and politician Vladimir Ilyitch Ulianov (Lenin) ("Vot-vot") and the French poet Charles Baudelaire ("Cré nom!"). Besides their historical relevance and the clinical picture of aphasia, these three cases share as a common feature the occurrence of speech automatisms or stereotypes.

  2. More Teens Turning Their Backs on Tanning Beds: CDC

    Science.gov (United States)

    ... of tanning beds likely has been the major driver in the observed decline, said Guy and Dr. ... concerted effort to get people to change their behavior." SOURCES: Gery Guy Jr., Ph.D., MPH, health ...

  3. Vietnamese President Truong Tan Sang Meets Chinese Friends

    Institute of Scientific and Technical Information of China (English)

    Xu; Yiyi

    2013-01-01

    <正>The visiting Vietnamese President Truong Tan Sang had a cordial meeting with Chinese personages friendly to Vietnam in the Vietnamese Embassy in China on June 20.The meeting was jointly arranged by

  4. First Bistatic Spaceborne SAR Experiments with TanDEM-X

    OpenAIRE

    Rodriguez-Cassola, Marc; Prats, Pau; Schulze, Daniel; Tous-Ramon, Nuria; Steinbrecher, Ulrich; Marotti, Luca; Nanninni, Matteo; Younis, Marwan; Lopez-Dekker, Paco; Zink, Manfred; Reigber, Andreas; Krieger, Gerhard; Moreira, Alberto

    2011-01-01

    TanDEM-X is a high-resolution interferometric mission with the main goal of providing a global and unprecedentedly accurate digital elevation model (DEM) of the Earth surface by means of single-pass X-band SAR interferometry. Despite its usual quasi-monostatic configuration, TanDEM-X is the first genuinely bistatic SAR system in space. During its monostatic commissioning phase, the system has been mainly operated in pursuit monostatic mode. However, some pioneering bistat...

  5. EL BIENESTAR SUBJETIVO ANTE LAS BUENAS PRÁCTICAS EDUCATIVAS CON TIC: SU INFLUENCIA EN PROFESORADO INNOVADOR

    Directory of Open Access Journals (Sweden)

    Jesús Valverde Berrocoso

    2013-01-01

    Full Text Available El objetivo de este estudio, que forma parte de una investigación más amplia sobre la innovación educativa y la integración de las Tecnologías de la Información y la Comunicación (TIC en el aula [1], es conocer el grado de «bienestar subjetivo» autopercibido por profesorado innovador y asociado a su realización de «buenas prácticas educativas con TIC». El bienestar subjetivo es un concepto que se extrae de las percepciones de las personas sobre su existencia o su visión subjetiva de su experiencia vital y profesional. En una muestra de profesorado innovador (N=41 de centros educativos seleccionados por sus «buenas prácticas con TIC», se aplicó un cuestionario para medir qué motivaciones, emociones y competencias están presentes en una práctica innovadora con tecnologías, así como el grado de satisfacción personal y profesional logrado tras la aplicación de estas buenas prácticas. Los resultados revelan las motivaciones que mueven al profesorado a implicarse en actividades docentes innovadoras, las percepciones de satisfacción y las emociones en las que se fundamenta su grado de bienestar subjetivo vinculado con las buenas prácticas educativas con TIC. Las motivaciones que impulsan la innovación o las buenas prácticas educativas con TIC son de carácter práctico (mejora del trabajo docente y mayor interés del alumnado, ético (deber y responsabilidad de uso por parte del profesorado y personal (superación de retos para lograr una mayor competencia digital. El profesorado manifiesta mayoritariamente emociones positivas relacionadas con el uso educativo de las TIC (orgullo, satisfacción, autoestima, autoconfianza y felicidad, autopercepción de logro de metas profesionales y una mayor eficacia en su actividad docente. El profesorado percibe que sus buenas prácticas inciden en la actitud positiva de sus compañeros hacias las innovaciones con TIC, el apoyo del equipo directivo hacia estos proyectos y a una mayor

  6. Felicidade, bem-estar subjetivo e comportamento acadêmico de estudantes universitários Felicidad, bienestar subjetivo y comportamiento académico de estudiantes universitarios Happiness, subjective well-being and the academic behavior of university students

    Directory of Open Access Journals (Sweden)

    José Augusto Dela Coleta

    2006-12-01

    Full Text Available Este estudo teve como objetivo determinar índices de felicidade e bem-estar e sua relação com o comportamento acadêmico, em uma amostra de 252 estudantes universitários dos últimos períodos de diversos cursos e diferentes instituições de educação superior. Os sujeitos foram solicitados a responder a um questionário composto de perguntas sobre dados biográficos e escalas sobre o sentimento de felicidade, satisfação e bem-estar subjetivo, avaliações de vários aspectos de suas vidas, de sua universidade, de sua formação e comportamento acadêmico. Os resultados mostraram que estes estudantes avaliam sua satisfação, bem-estar e felicidade de modo bastante positivo. De modo geral eles estão satisfeitos com a faculdade e com o próprio rendimento acadêmico, embora se preocupem um pouco com a garantia de sucesso profissional que a formação recebida lhes possa oferecer. A principal hipótese foi confirmada ao se encontrar coeficiente de correlação múltipla significativo entre as medidas de bem-estar subjetivo e o comportamento acadêmico-universitário.Este estudio tuvo como objetivo determinar índices de felicidad y bienestar y su relación con el comportamiento académico, en una muestra de 252 estudiantes universitarios en los últimos períodos de diversos cursos y diferentes instituciones de educación superior. Los sujetos fueron solicitados a responder a un cuestionario compuesto de preguntas sobre datos biográficos y escalas sobre el sentimiento de felicidad, satisfacción y bienestar subjetivo, evaluaciones de varios aspectos de sus vidas, de su universidad, de su formación y comportamiento académico. Los resultados mostraron que estos estudiantes evalúan su satisfacción, bienestar y felicidad de modo bastante positivo. De modo general ellos están satisfechos con la facultad y con el propio rendimiento académico, aunque se preocupen un poco con la garantía de éxito profesional que la formación recibida

  7. El bienestar subjetivo como enfoque e instrumento de la política pública: una revisión analítica de la literatura

    Directory of Open Access Journals (Sweden)

    Castellanos-Cereceda, Roberto

    2012-05-01

    Full Text Available ¿Qué utilidad tiene el enfoque de bienestar subjetivo para el estudio, análisis y hechura de la política pública? En este trabajo argumento que la utilidad se aprecia en varios aspectos. El enfoque de bienestar subjetivo ofrece nuevas formas de poner a prueba supuestos básicos del análisis económico y social sobre el comportamiento humano; ofrece herramientas de análisis que dan una perspectiva diferente y complementaria a mediciones y enfoques tradicionales sobre los aspectos que más importan a la población en su proceso de desarrollo; ofrece un conjunto de reflexiones importantes sobre las implicaciones del estudio de la felicidad y la satisfacción para diferentes tipos de políticas públicas y en distintos ámbitos de la acción gubernamental. Estos aspectos se analizan a partir de un rastreo histórico sobre los orígenes de la “ciencia del bienestar subjetivo o de la felicidad” y de una revisión de la literatura para identificar temas abordados, herramientas desarrolladas y políticas públicas implicadas en el estudio sobre el bienestar subjetivo en décadas recientes. Una de las ideas centrales de este trabajo es que más que elevar los niveles de felicidad y satisfacción de las personas, en sí mismo importante, se trata de encontrar formas de reducir la brecha entre los objetivos de desarrollo que tiene la política pública, por un lado, y el bienestar subjetivo de la población, por el otro, a partir de una mejor comprensión de las preferencias y comportamientos de los individuos y lo que afecta la satisfacción de las personas con su vida.

  8. Tannin Fingerprinting in Vegetable Tanned Leather by Solid State NMR Spectroscopy and Comparison with Leathers Tanned by Other Processes

    Directory of Open Access Journals (Sweden)

    Jan H. van der Westhuizen

    2011-01-01

    Full Text Available Solid state 13C-NMR spectra of pure tannin powders from four different sources – mimosa, quebracho, chestnut and tara – are readily distinguishable from each other, both in pure commercial powder form, and in leather which they have been used to tan.  Groups of signals indicative of the source, and type (condensed vs. hydrolyzable of tannin used in the manufacture are well resolved in the spectra of the finished leathers.  These fingerprints are compared with those arising from leathers tanned with other common tanning agents.  Paramagnetic chromium (III tanning causes widespread but selective disappearance of signals from the spectrum of leather collagen, including resonances from acidic aspartyl and glutamyl residues, likely bound to Cr (III structures. Aluminium (III and glutaraldehyde tanning both cause considerable leather collagen signal sharpening suggesting some increase in molecular structural ordering. The 27Al-NMR signal from the former material is consistent with an octahedral coordination by oxygen ligands. Solid state NMR thus provides easily recognisable reagent specific spectral fingerprints of the products of vegetable and some other common tanning processes. Because spectra are related to molecular properties, NMR is potentially a powerful tool in leather process enhancement and quality or provenance assurance.

  9. Tannin fingerprinting in vegetable tanned leather by solid state NMR spectroscopy and comparison with leathers tanned by other processes.

    Science.gov (United States)

    Romer, Frederik H; Underwood, Andrew P; Senekal, Nadine D; Bonnet, Susan L; Duer, Melinda J; Reid, David G; van der Westhuizen, Jan H

    2011-01-28

    Solid state ¹³C-NMR spectra of pure tannin powders from four different sources--mimosa, quebracho, chestnut and tara--are readily distinguishable from each other, both in pure commercial powder form, and in leather which they have been used to tan. Groups of signals indicative of the source, and type (condensed vs. hydrolyzable) of tannin used in the manufacture are well resolved in the spectra of the finished leathers. These fingerprints are compared with those arising from leathers tanned with other common tanning agents. Paramagnetic chromium (III) tanning causes widespread but selective disappearance of signals from the spectrum of leather collagen, including resonances from acidic aspartyl and glutamyl residues, likely bound to Cr (III) structures. Aluminium (III) and glutaraldehyde tanning both cause considerable leather collagen signal sharpening suggesting some increase in molecular structural ordering. The ²⁷Al-NMR signal from the former material is consistent with an octahedral coordination by oxygen ligands. Solid state NMR thus provides easily recognisable reagent specific spectral fingerprints of the products of vegetable and some other common tanning processes. Because spectra are related to molecular properties, NMR is potentially a powerful tool in leather process enhancement and quality or provenance assurance.

  10. Ultraviolet exposure from indoor tanning devices: a systematic review.

    Science.gov (United States)

    Nilsen, L T N; Hannevik, M; Veierød, M B

    2016-04-01

    Use of indoor tanning devices increases the risk of cutaneous melanoma and nonmelanoma skin cancer. Indoor tanning devices have become important sources of ultraviolet (UV) exposure, both UVB and UVA. This systematic review assessed UV measurements performed in indoor tanning devices related to irradiance level, wavelength distribution and similarities to natural sun. The study was performed in accordance with the MOOSE and PRISMA guidelines. We searched PubMed, Embase and Web of Science from inception to May 2015, and also examined the reference lists of the retrieved studies. Eighteen studies were included. Twelve studies examined the erythema-weighted UV irradiances of indoor tanning devices, 11 studies examined UVB and 13 studies studied UVA. Compliance with irradiance limits was reported in nine studies. Erythema-weighted irradiances were highest in the most recent studies. Most studies had mean values higher than from natural sun and with large variations between devices. All studies except two had mean unweighted UVB irradiances lower than from natural summer sun (at latitudes from 37°S to 35°N), while mean unweighted UVA irradiances were, with one exception, substantially higher than from natural sun. The high values of UVA exposure from modern tanning devices are alarming in light of the increased focus on UVA irradiance as a carcinogen, and as UVA exposure confers little protection against subsequent UV exposure.

  11. Microstructural and weldability evaluation of 310TaN

    Energy Technology Data Exchange (ETDEWEB)

    Lundin, C.D.; Qiao, C.Y.P. [Univ. of Tennessee, Knoxville, TN (United States); Swindeman, R.W. [Oak Ridge National Lab., TN (United States)

    1996-08-01

    Excellent weldability and good microstructural stability of 310TaN, in terms of the formation and growth of secondary phases at elevated temperature, was revealed in this investigation. The interganular stress corrosion resistance of 310TaN is superior to modified 800H and 310HCbN evaluated previously due to the fact that TaC, TaN and Ta(C,N) particles are more stable compared to Nb-rich or Ti-rich carbides, nitrides and carbonitrides presented in the other advanced alloys. Using resistance spot welding technique for which extremely fast cooling is a characteristic, it was found that a very minor amount of gain boundary liquation takes place during welding thermal cycling. The limited grain boundary liquation is of the eutectic type i.e., a low tendency to weld HAZ hot cracking.

  12. Preparation and Characterization of TaN ALD Precursors

    Institute of Scientific and Technical Information of China (English)

    Delong Zhang; Tracy Yund; Cynthia A.Hoover

    2004-01-01

    High purity organic-tantalum precursors for thin film ALD TaN were synthesized and characterized.Vapor pressure and thermal stability of these precursors were studied.From the vapor pressure analysis,it was found that TBTEMT has a higher vapor pressure than any other published liquid TaN precursor,including TBTDET,TAITMATA,and IPTDET.Thermal stability of the alkyl groups on the precursors was investigated using a 1H NMR technique.The results indicated that the tertbutylimino group is the most stable group on TBTDET and TBTEMT as compared to the dialkylamido groups.Thermal stability of TaN precursors decreased in the following order:TBTDET > PDMAT > TBTEMT.In conclusion,precursor vapor pressure and thermal stability were tuned by making slight variations in the ligand sphere around the metal center.

  13. Valorization of titanium metal wastes as tanning agent used in leather industry.

    Science.gov (United States)

    Crudu, Marian; Deselnicu, Viorica; Deselnicu, Dana Corina; Albu, Luminita

    2014-10-01

    The development of new tanning agents and new technologies in the leather sector is required to cope with the increasingly higher environmental pressure on the current tanning materials and processes such as tanning with chromium salts. In this paper, the use of titanium wastes (cuttings) resulting from the process of obtaining highly pure titanium (ingots), for the synthesis of new tanning agent and tanning bovine hides with new tanning agent, as alternative to tanning with chromium salts are investigated. For this purpose, Ti waste and Ti-based tanning agent were characterized for metal content by inductively coupled plasma mass spectrometry (ICP-MS) and chemical analysis; the tanned leather (wet white leather) was characterized by Scanning Electron Microscope/Energy Dispersive Using X-ray (Analysis). SEM/EDX analysis for metal content; Differential scanning calorimetric (DSC), Micro-Hot-Table and standard shrinkage temperature showing a hydrothermal stability (ranged from 75.3 to 77°C) and chemical analysis showing the leather is tanned and can be processed through the subsequent mechanical operations (splitting, shaving). On the other hand, an analysis of major minor trace substances from Ti-end waste (especially vanadium content) in new tanning agent and wet white leather (not detected) and residue stream was performed and showed that leachability of vanadium is acceptable. The results obtained show that new tanning agent obtained from Ti end waste can be used for tanning bovine hides, as eco-friendly alternative for chrome tanning.

  14. Trabajo informal: motivos, bienestar subjetivo, salud, y felicidad en vendedores ambulantes Trabalho informal: motivos, bem-estar subjetivo, saúde e felicidade de vendedores ambulantes Informal work: motives, well being, health and happiness in street vendors

    Directory of Open Access Journals (Sweden)

    Emilio Moyano Díaz

    2008-12-01

    Full Text Available Las relaciones entre trabajo, bienestar subjetivo (B.S., felicidad y salud son complejas y de alto interés teórico y empírico. Ellas son analizadas aquí en trabajadores informales de comercio ambulante. Mediante observación y fotografías en las cinco ciudades más pobladas de la región del Maule (Chile, se registra 1556 puestos de venta de los que aleatoriamente se selecciona 258 para encuestar. Resultados: presentan una satisfacción vital global moderada, estando menos satisfechos con sus amigos y ocio, que con su trabajo y su familia. Su mayor felicidad proviene de ésta (χ2Friedman=389,47; gl=3; pAs relações entre trabalho, bem-estar subjetivo (B.S., felicidade e saúde são complexas e de alto interesse teórico e empírico. Elas são analisadas aqui em trabalhadores informais do comércio ambulante. Mediante observação e fotografias nas cinco cidades mais populosas da região do Maule (Chile, registram-se 1556 postos de venda. Foram selecionados aleatoriamente 258 para interrogar. Resultados: os trabalhadores informais apresentam uma satisfação vital global moderada, estando menos satisfeitos com seus amigos e tempo de lazer do que com seu trabalho e sua família. Sua maior felicidade provém desta (χ2Friedman=389,47; gl=3; pRelationships among work, subjective well being (SWB, happiness and health are complex and have a high theoretical and empirical relevance. In this study, these relationships are analyzed in street vendors. Using observation and photographs in the five bigger cities Maule Region (Chile, 1556 sale points were found and 258 of them were randomly selected for this study. Results: vendors have a moderated life satisfaction, with lower satisfaction levels about their friends and leisure than about their work and family. The highest report of happiness comes from their family (χ2Friedman=389,47; gl=3; p<0,001. They report being sick M= 6 days per month, although they only miss work one day per month. Their

  15. VLF Tan Delta Measurement for Used XLPE Power Cables

    Energy Technology Data Exchange (ETDEWEB)

    Lim, Woo Sang; Ha, Che Wung; Joo, Kwang Ho [Korea Hydro and Nuclear Power Co., Daejeon (Korea, Republic of)

    2011-05-15

    Medium voltage power cables in nuclear power plants are currently managed through the visual inspection or by monitoring environmental factors such as the temperature and radiation levels. However, these methods are insufficient to monitor aging degradation of power cables. The NRC requires an additional monitoring program to detect the aged degradation, especially for safety-related power cables which are inaccessible or installed underground. EPRI suggested that very low frequency (VLF) tan {delta} test be included in MV power cable diagnostic programs. In addition, the VLF tan {delta} test was recently adopted for domestic submarine distribution cable diagnostics. KEPRI suggested that the impacts of leakage current should be controlled in VLF tan {delta} test for the submarine cables. As a pre-process to develop such a program, tan {delta} tests have been performed for 4.16 kV cables which were removed from the domestic nuclear power plant after approximate 30 years of service to analyze the degradation of long time serviced cables and the effect of leakage current from the both ends of cables

  16. 76 FR 46677 - Indoor Tanning Services; Cosmetic Services Excise Taxes

    Science.gov (United States)

    2011-08-03

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF THE TREASURY Internal Revenue Service 26 CFR Parts 40 and 49 RIN 1545-BJ40 Indoor Tanning Services; Cosmetic Services Excise Taxes AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Notice of public hearing...

  17. 75 FR 33740 - Indoor Tanning Services; Cosmetic Services; Excise Taxes

    Science.gov (United States)

    2010-06-15

    ... Internal Revenue Service 26 CFR Parts 40 and 49 RIN 1545-BJ40 Indoor Tanning Services; Cosmetic Services... follows: Sec. 49.0-3 Introduction; cosmetic services. [The text of this proposed Sec. 49.0-3 is the same.... Subpart G is added to read as follows: Subpart G--Cosmetic Services Sec. 49.5000B-1 Indoor...

  18. Permanent Closure of the TAN-664 Underground Storage Tank

    Energy Technology Data Exchange (ETDEWEB)

    Bradley K. Griffith

    2011-12-01

    This closure package documents the site assessment and permanent closure of the TAN-664 gasoline underground storage tank in accordance with the regulatory requirements established in 40 CFR 280.71, 'Technical Standards and Corrective Action Requirements for Owners and Operators of Underground Storage Tanks: Out-of-Service UST Systems and Closure.'

  19. Powdered hide model for vegetable tanning II. hydrolyzable tannin

    Science.gov (United States)

    Vegetable tannages employ both condensed and hydrolyzable tannins. As part of our exploration of tanning mechanisms, we reported last year on interactions of the condensed tannin, quebracho, with powdered hide. In this study, the interactions of chestnut extract, a hydrolyzable tannin, with powdere...

  20. "Darkness Overcomes You": Shaun Tan and Søren Kierkegaard

    Science.gov (United States)

    Johansen, Martin Blok

    2015-01-01

    This article analyses Shaun Tan's picturebook "The Red Tree" using some of the central concepts of existentialism developed by the Danish philosopher Søren Kierkegaard. Kierkegaard argued that being a person entails a coming-to-be ["tilblivelse"], and for the person this coming-to-be manifests itself as a task. The task is to…

  1. Large tan$\\beta$ from SU(2)$_{R}$ gauge symmetry

    CERN Document Server

    Lazarides, G

    1994-01-01

    Sufficient conditions for the relation tan \\beta \\simeq m_t/m_b to hold in supersymmetric grand unified theories are formulated. Essential ingredients are the SU(2)_R gauge symmetry and a discrete matter parity. The applicability of our conditions is illustrated by specific examples. Implications for neutrino masses are discussed.

  2. Tan's distributions and Fermi-Huang pseudopotential in momentum space

    Science.gov (United States)

    Valiente, Manuel

    2012-01-01

    The long-standing question of finding the momentum representation for the s-wave zero-range interaction in three spatial dimensions is here solved. This is done by expressing a certain distribution, introduced in a formal way in [S. Tan, Ann. Phys. (NY)APNYA60003-491610.1016/j.aop.2008.03.004 323, 2952 (2008)], explicitly. The resulting form of the Fourier-transformed pseudopotential remains very simple. Operator forms for the so-called Tan's selectors, which, together with Fermi-Huang pseudopotential, largely simplify the derivation of Tan's universal relations for the Fermi gas, are here derived and are also very simple. A momentum cutoff version of the pseudopotential is also provided, and with this no apparent contradiction to the notion of integrals in Tan's methods is left. The equivalence, even at the intermediate-step level, between the pseudopotential approach and momentum-space renormalization of the bare Dirac delta interaction is then shown by using the explicit form of the cutoff pseudopotential.

  3. Valorization of titanium metal wastes as tanning agent used in leather industry

    Energy Technology Data Exchange (ETDEWEB)

    Crudu, Marian, E-mail: mariancrudu@yahoo.com [The National Research and Development Institute for Textiles and Leather – Division Leather and Footwear Research Institute, 93 Ion Minulescu Str., Bucharest (Romania); Deselnicu, Viorica, E-mail: viorica.deselnicu@icpi.ro [The National Research and Development Institute for Textiles and Leather – Division Leather and Footwear Research Institute, 93 Ion Minulescu Str., Bucharest (Romania); Deselnicu, Dana Corina, E-mail: d_deselnicu@yahoo.com [University Politehnica Bucharest, Splaiul Independentei Nr. 313, Sector 6, RO-060042 Bucharest (Romania); Albu, Luminita, E-mail: luminita.albu@gmail.com [The National Research and Development Institute for Textiles and Leather – Division Leather and Footwear Research Institute, 93 Ion Minulescu Str., Bucharest (Romania)

    2014-10-15

    Highlights: • Valorization of titanium wastes which cannot be recycled in metallurgical industry. • Transferring Ti waste into raw materials for obtaining Ti based tanning agent. • Characterization of new Ti based tanning agents and leather tanned with them. • Characterization of sewage waste water and sludge resulted from leather manufacture. • Analysis of the impact of main metal component of Ti waste. - Abstract: The development of new tanning agents and new technologies in the leather sector is required to cope with the increasingly higher environmental pressure on the current tanning materials and processes such as tanning with chromium salts. In this paper, the use of titanium wastes (cuttings) resulting from the process of obtaining highly pure titanium (ingots), for the synthesis of new tanning agent and tanning bovine hides with new tanning agent, as alternative to tanning with chromium salts are investigated. For this purpose, Ti waste and Ti-based tanning agent were characterized for metal content by inductively coupled plasma mass spectrometry (ICP-MS) and chemical analysis; the tanned leather (wet white leather) was characterized by Scanning Electron Microscope/Energy Dispersive Using X-ray (Analysis). SEM/EDX analysis for metal content; Differential scanning calorimetric (DSC), Micro-Hot-Table and standard shrinkage temperature showing a hydrothermal stability (ranged from 75.3 to 77 °C) and chemical analysis showing the leather is tanned and can be processed through the subsequent mechanical operations (splitting, shaving). On the other hand, an analysis of major minor trace substances from Ti-end waste (especially vanadium content) in new tanning agent and wet white leather (not detected) and residue stream was performed and showed that leachability of vanadium is acceptable. The results obtained show that new tanning agent obtained from Ti end waste can be used for tanning bovine hides, as eco-friendly alternative for chrome tanning.

  4. Tanning in solarium – knowledge, attitudes and Polish habits

    Directory of Open Access Journals (Sweden)

    Katarzyna Torzewska

    2014-03-01

    Full Text Available Introduction. Tanning devices are sources of UVA and UVB radiation. UV exposure can cause damage to the cornea of the eye, skin burns and even skin cancer. Appropriate use of solarium requires adequate knowledge of health effects resulting from the excessive use of sunbeds. The aim of the study was to examine knowledge, attitudes and habits in the solarium use. Material and methods. The study was based on our own questionnaire distributed among the citizens of a city located in Łódź Province. The study group consisted of 135 adults, mostly women and people with secondary and vocational education. Participants of the study were asked to answer specific questions included in the questionnaire concerning the knowledge of UV radiation, attitudes and the behaviour in the solarium. Results. 36% of the respondents were going to the solarium. 38% of the respondents weren’t going at all. Every fourth respondent used to go to the solarium in the past, however gave up this type of tanning for some reasons. Protecting goggles were used only by 18% of the respondents. 94% of the respondents never asked the service about CE certificates for the sunbeds intended for use. Conclusions. People tanning in the solarium, in comparison to those who do not use the artificial sun, enjoy better knowledge of the ultraviolet radiation. However they do not follow the requirements of the safe tanning. They are also not interested in technical conditions of the sunbeds. People who are not tanning in the solarium are more aware of health effects caused by UV radiation. Actions promoting public awareness on negative health effects of exposure to UV radiation in the solarium are needed.

  5. Una aplicación de redes sistémicas para entender las concepciones de los estudiantes:¿qué tan grande es un átomo?

    Directory of Open Access Journals (Sweden)

    Diana M. Farías

    2012-04-01

    Full Text Available Este trabajo describe el empleo de las redes sistémicas para analizar las concepciones de un grupo de estudiantes de la carrera de biología acerca del tamaño del átomo. Las respuestas a la pregunta ¿qué tan grande es un átomo? se evaluaron antes y después del estudio de los temas de estequiometría y estructura atómica. El análisis de las redes permitió identificar que, después del estudio de los temas mencionados, la red se hace más compleja como evidencia de un cambio en las respuestas. No obstante, las categorías de la red antes y después de la intervención didáctica se mantienen. Al final del proceso, una gran parte de los estudiantes que no tenían respuesta a la pregunta propuesta inicialmente se posicionan y adoptan como solución la comparación con elementos que conocen, siempre relacionando algo “muy grande” con algo “muy pequeño”.

  6. Tan Silliksaar, Tõnu Ling : meie piltides ei ole mingit trikitamist ega skandaali / Tõnu Ling, Tan Silliksaar ; interv. Heli Salong

    Index Scriptorium Estoniae

    Ling, Tõnu

    2005-01-01

    Kuressaare kultuurikeskuses ja Saaremaa kunstistuudios avati Tõnu Lingi ja Tan Silliksaare fotonäitus-müük "Maameeste maastikud". Fotod on prinditud spetsiaalsele, kunsti reprodutseerimiseks mõeldud lõuendile. Autorid oma koostööst, fotodest, lõuenditehnikast

  7. Formación de maestros: reflexiones desde la didáctica y el cuerpo subjetivo (motricidad

    Directory of Open Access Journals (Sweden)

    Jose Ayala Zuluaga

    Full Text Available Resumen En el siguiente ensayo se ubican algunas consideraciones de lo educativo en Latinoamérica, los sueños y las emergencias que se develan a partir de lo que está aconteciendo en este escenario. Partiendo de allí, se exponen consideraciones sobre la formación de maestros y el tránsito entre el modelo técnico y el modelos reflexivo, en tal cuestión se soporta la concepción de didáctica y como esta, en su avance teórico y experimental está sujeta al modelo cognitivo de racionalidad técnica. También se hacen apreciaciones sobre lo denominado como cuerpo subjetivo y las posibles consideraciones para aportar en la didáctica y la formación del maestro si se está pensando en procesos educativos identitarios desde lo latinoamericano.

  8. El bienestar subjetivo en la adolescencia: estudio comparativo de dos Comunidades Autónomas en España

    Directory of Open Access Journals (Sweden)

    Ferran Casas

    2013-01-01

    Full Text Available Se analiza la comparabilidad interlingüística e intercultural del bienestar subjetivo durante la adolescencia, a partir de dos muestras de Asturias y de Cataluña de entre 15 y 18 años. Se utilizan como indicadores psicosociales de bienestar tres escalas: La SWLS de Diener, Emmons, Larsen y Smith (1985, escala libre de contexto (context free, el PWI de Cummins, Eckersley, van Pallant, Vugt y Misajon (2003, que evalúa el bienestar personal por ámbitos, y una escala de ítem único sobre satisfacción global con la vida (Overall Life Satisfaction = OLS. Utilizando modelos de Análisis Factorial Confirmatorio, el PWI muestra un buen ajuste para ambas muestras, avalando la comparabilidad de los resultados entre ambas poblaciones. Sus puntuaciones globales resultan más altas entre los adolescentes asturianos que entre los catalanes, igual que la OLS. La SWLS muestra un mal ajuste con los términos constantes restringidos, que añadido al hecho que el alpha de Cronbach aumentaría si el ítem 5 fuera suprimido, abunda en la idea que esta escala funciona de manera distinta en contextos socio-culturales diferentes y mantiene abiertas las dudas sobre si es apropiada su utilización como instrumento comparativo entre poblaciones de características lingüísticas y/o socioculturales distintas.

  9. As contribuições da personalidade e dos eventos de vida para o bem-estar subjetivo

    Directory of Open Access Journals (Sweden)

    Carla Woyciekoski

    Full Text Available Este estudo teve por objetivo verificar o poder preditivo de características de personalidade e eventos de vida sobre o bem-estar subjetivo (BES. Participaram 274 universitários, 69% mulheres. Os resultados mostraram neuroticismo e extroversão como as principais variáveis explicativas do BES. Ainda, seis eventos de vida contribuíram com a explicação do BES, por exemplo, "término de namoro" mostrou-se variável preditiva positiva de Afeto positivo;"problemas financeiros" explicou negativamente a Satisfação de Vida. Os resultados sugerem que, embora as pessoas possam avaliar suas vidas como mais positivas e experienciar afetos mais positivos em função de suas características de personalidade, é pertinente adotar no campo de estudos do BES uma abordagem interacionista, integrando fatores intrínsecos, como personalidade, e extrínsecos, como eventos de vida.

  10. 77 FR 37806 - Disregarded Entities and the Indoor Tanning Services Excise Tax

    Science.gov (United States)

    2012-06-25

    ... Services Excise Tax AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Final and temporary... (including qualified subchapter S subsidiaries) and the indoor tanning services excise tax. These regulations affect disregarded entities responsible for collecting the indoor tanning services excise tax and...

  11. La universitat i quelcom anomenat universitat The university and something we call university La universidad y algo llamado universidad

    Directory of Open Access Journals (Sweden)

    Francisco Esteban Bara

    2011-01-01

    é au point de nommer université ce qui n’en est pas une.It seems that Postmodernism is reasonably clear about what kind of university we need. Regardless of the specific nature of each place, the ideal is that of a university which is useful, effective and efficient, and which drives economic and social change. Without going any further, the European Higher Education Area (EHEA is a proposal which reflects this approach. However, it seems to have overlooked the true nature of the university, which underlies the institution. The concept of the university does not sit comfortably with certain contemporary demands and pressures, and has to speak out to explain to the community what it is for. This work looks into the tensions which affect the university on a daily basis, and indicates some of the pitfalls that await. Depending on our point of view, we may feel that we are calling something a university which is really something elseDa la sensación de que la posmodernidad tiene más o menos claro qué universidad necesitamos. Independientemente de las particularidades de cada lugar, se plantea una universidad que sea útil, efectiva y eficiente, que se convierta en un motor de cambio económico y social. Sin ir más lejos, el Espacio Europeo de Educación Superior (EEES constituye una propuesta que refleja este planteamiento. Sin embargo, parece ser que se ha olvidado qué es realmente la universidad, qué hay detrás de su institucionalización. La idea de universidad se siente incómoda ante determinadas demandas y urgencias contemporáneas, y necesita levantar su voz para decir a la comunidad cuál es su razón de ser. El trabajo que se presenta trata sobre las tensiones en las que a día de hoy se ve envuelta la universidad, a la vez que señala los peligros que la acechan. Según como se mire, se podría llegar a un punto que llamamos universidada algo que en realidad no lo es.

  12. Molecular modeling approach to vegetable tanning: preliminary results for gallotannin interactions with the collagen microfibril

    Science.gov (United States)

    Tanning of animal hides produces leather, a durable, flexible material that is stabilized against putrefaction. Chrome-tanned wet blue, aldehyde crosslinked wet white, and vegetable tanned hides are major contributors to current leather production. Although the chemistries involved are significant...

  13. A population-based survey on tanning bed use in Germany

    Directory of Open Access Journals (Sweden)

    Wiedemann Peter

    2009-07-01

    Full Text Available Abstract Background The suntanning industry has grown up over the last decade in Europe, mainly because tanned skin is considered socially desirable and attractive. Because of the potential negative impact of artificial tanning on public health, this study was to investigate tanning bed use behaviour, UV related risk perception and beliefs about tanning in the German population. Methods In 2007, a representative telephone survey was carried out among 1501 German residents aged 14 years and older. Results More than one fourth (28% of the German population have used tanning beds at least once before in their lifetime. High-frequency tanning behaviour, i.e. using tanning beds more than 10 times per year, were recorded for 11%. Men and women aged 18 to 44 years and young women under the age of 18 used tanning beds more frequently (>10 times per year. Tanning bed use was positively related to appearance and lifestyle related beliefs as well as to the perception that tanned skin is healthy. Conclusion This analysis indicates that tanning bed use is common in Germany. The positive relationships of appearance and health related beliefs with tanning bed use are of great concern. The results indicate underlying misconceptions about the positive effect of artificial UV radiation compared to natural UV radiation particular for high-frequency tanners. The data shows the importance as well as the limitations for risk communication in its current effort to inform effectively about the dangers of artificial UV radiation.

  14. ALGOS: the development of a randomized controlled trial testing a case management algorithm designed to reduce suicide risk among suicide attempters

    Directory of Open Access Journals (Sweden)

    Duhem Stephane

    2011-01-01

    Full Text Available Abstract Background Suicide attempts (SA constitute a serious clinical problem. People who attempt suicide are at high risk of further repetition. However, no interventions have been shown to be effective in reducing repetition in this group of patients. Methods/Design Multicentre randomized controlled trial. We examine the effectiveness of «ALGOS algorithm»: an intervention based in a decisional tree of contact type which aims at reducing the incidence of repeated suicide attempt during 6 months. This algorithm of case management comprises the two strategies of intervention that showed a significant reduction in the number of SA repeaters: systematic telephone contact (ineffective in first-attempters and «Crisis card» (effective only in first-attempters. Participants who are lost from contact and those refusing healthcare, can then benefit from «short letters» or «postcards». Discussion ALGOS algorithm is easily reproducible and inexpensive intervention that will supply the guidelines for assessment and management of a population sometimes in difficulties with healthcare compliance. Furthermore, it will target some of these subgroups of patients by providing specific interventions for optimizing the benefits of case management strategy. Trial Registration The study was registered with the ClinicalTrials.gov Registry; number: NCT01123174.

  15. Supersymmetric models with tan$\\beta$ close to unity

    CERN Document Server

    Ananthanarayan, B; Shafi, Qaisar

    1994-01-01

    Within the framework of supersymmetric grand unification, estimates of the $b$ quark mass based on the asymptotic relation $m_b \\simeq m_\\tau$ single out the region with $\\tan\\beta$ close to unity, particularly if $m_t(m_t) \\stackrel{_<}{_\\sim} 170\\ GeV$. We explore the radiative breaking of the electroweak symmetry and the associated sparticle and higgs spectroscopy in models with $1 < \\tan\\beta \\stackrel{_<}{_\\sim} 1.6$. The lightest scalar higgs is expected to have a mass below $100\\ GeV$, while the remaining four higgs masses exceed $300\\ GeV$. The lower bounds on some of the sparticle masses are within the range of LEP 200.

  16. Study of the dechroming of tanned leather wastes

    OpenAIRE

    Botić Tatjana; Ilišković Nadežda V.; Drljača Dijana

    2004-01-01

    According to European legislation, it is not possible to dump any chromium-containing waste in Europe. The minimization of wastes is a key element in that strategy. It involves the application of clean technologies: low and non-waste technologies. The tanning industry generates substantial quantities of chromium-containing solid waste in the form of shavings and trimmings. The recycling and reuse of those wastes must be the primary target in optimizing processes of the leather industry. The p...

  17. A SUSY SO(10) model with large tan$\\beta$

    CERN Document Server

    Lazarides, G

    1994-01-01

    We construct a supersymmetric SO(10) model with the asymptotic relation tan\\beta \\simeq m_t/m_b automatically arising from its structure. The model retains the significant Minimal Supersymmetric Standard Model predictions for sin^2 \\theta_w and \\alpha_s and contains an automatic Z_2 matter parity. Proton decay through d=5 operators is sufficiently suppressed. It is remarkable that no global symmetries need to be imposed on the model.

  18. Tan spot - the most harmful wheat leaf disease in Latvia

    Directory of Open Access Journals (Sweden)

    Biruta Bankina

    2012-12-01

    Full Text Available Tan spot (Pyrenophora tritici-repentis is one of the most important wheat diseases in Latvia. Significant spreading of this disease was observed from 1998. Field experiments were carried out at the Research and Training Farm "Peterlauki" of the Latvia University of Agriculture, during 1998-2003. Development of diseases was observed on 14 winter wheat varieties, dynamics of development was investigated on 'Donskaja polukarlikovaja' and 'Stava'. Assessments of the disease severity were carried out on the upper three leaves each week from the start of stem elongation to full ripening. Tan spot was observed at the stage of stem elongation in 2003, and only after flowering in 1999. Increase of the disease severity was slow until stage of milk ripeness, and only in late stages of wheat development sharp increase of the disease was observed. Total rate of infection (through the session of vegetation was very slow (0,01-0,19, but during ripening rate achieved 0,5-0,6. The main reason of so unequal development of the disease seems changes in amount of infection sources. Other possible reason of rapid increase of the disease development is the relationship between leaf age and susceptibility to the disease. Further research is necessary for better understanding of tan spot life cycle.

  19. Precise baseline determination for the TanDEM-X mission

    Science.gov (United States)

    Koenig, Rolf; Moon, Yongjin; Neumayer, Hans; Wermuth, Martin; Montenbruck, Oliver; Jäggi, Adrian

    The TanDEM-X mission will strive for generating a global precise Digital Elevation Model (DEM) by way of bi-static SAR in a close formation of the TerraSAR-X satellite, already launched on June 15, 2007, and the TanDEM-X satellite to be launched in May 2010. Both satellites carry the Tracking, Occultation and Ranging (TOR) payload supplied by the GFZ German Research Centre for Geosciences. The TOR consists of a high-precision dual-frequency GPS receiver, called Integrated GPS Occultation Receiver (IGOR), and a Laser retro-reflector (LRR) for precise orbit determination (POD) and atmospheric sounding. The IGOR is of vital importance for the TanDEM-X mission objectives as the millimeter level determination of the baseline or distance between the two spacecrafts is needed to derive meter level accurate DEMs. Within the TanDEM-X ground segment GFZ is responsible for the operational provision of precise baselines. For this GFZ uses two software chains, first its Earth Parameter and Orbit System (EPOS) software and second the BERNESE software, for backup purposes and quality control. In a concerted effort also the German Aerospace Center (DLR) generates precise baselines independently with a dedicated Kalman filter approach realized in its FRNS software. By the example of GRACE the generation of baselines with millimeter accuracy from on-board GPS data can be validated directly by way of comparing them to the intersatellite K-band range measurements. The K-band ranges are accurate down to the micrometer-level and therefore may be considered as truth. Both TanDEM-X baseline providers are able to generate GRACE baselines with sub-millimeter accuracy. By merging the independent baselines by GFZ and DLR, the accuracy can even be increased. The K-band validation however covers solely the along-track component as the K-band data measure just the distance between the two GRACE satellites. In addition they inhibit an un-known bias which must be modelled in the comparison, so the

  20. Exposure to the "Dark Side of Tanning" Skin Cancer Prevention Mass Media Campaign and Its Association with Tanning Attitudes in New South Wales, Australia

    Science.gov (United States)

    Perez, Donna; Kite, James; Dunlop, Sally M.; Cust, Anne E.; Goumas, Chris; Cotter, Trish; Walsberger, Scott C.; Dessaix, Anita; Bauman, Adrian

    2015-01-01

    Melanoma is the most common cancer among 15- to 29-year-olds in Australia, with rates increasing with age. The "Dark Side of Tanning" (DSOT) mass media campaign was developed in 2007 to influence attitudes related to tanning. This study aimed to assess recall and impact of the DSOT campaign. Data were collected using online surveys of…

  1. El bienestar subjetivo y la práctica de actividades deportivas para los estudiantes de las Universidades Mayores de Porto

    OpenAIRE

    Marconcin, Priscila Ellen Pinto; Corte-Real, Nuno; Dias, Cláudia; Fonseca, António Manuel

    2012-01-01

    A psicologia vem nas últimas décadas, dando ênfase ao estudo do comportamento positivo do Ser humano, como: a felicidade, a motivação e o bem-estar. O bem-estar subjetivo é simplificadamente, a avaliação feita pelo sujeito das suas condições de vida. Dessa forma, o presente estudo procurou investigar o nível da prática desportiva e o bem-estar subjectivo (BES) de idosos, praticantes e não praticantes de atividades desportiva, alunos de três Universidades Seniores localizada na cidade do Porto...

  2. El reconocimiento de los derechos públicos subjetivos y la reforma constitucional en materia de derechos humanos de junio de 2011

    OpenAIRE

    Francisco José Murillo Ruiseco; Yanalte Rodríguez Soto; Samanta Deciré Bernal Ayala

    2013-01-01

    El reconocimiento de los derechos públicos subjetivos constituye uno de los principios fundamentales del Estado moderno. Limitarse a considerar los derechos del hombre frente al Estado como una esfera extrajurídica al modo de Hans Kelsen, o como una capacidad de hacer o no hacer optativa al modo que Eduardo García Máynez, no permite comprender el contenido con que la idea se ha ido presentando históricamente. Los derechos reconocidos al hombre frente al Estado no son puramente libertad ...

  3. Arranjos urbanos e subjetivos contemporâneos na invenção de territórios turísticos

    OpenAIRE

    2011-01-01

    Buscamos consistência empírica e rigor analítico para o conceito de turistificação, através dos arranjos urbanos e subjetivos contemporâneos postos por uma paisagem social de (des)encontros entre os moradores e os estrangeiros que convivem na capital do Rio Grande do Norte, Natal. Nas últimas três décadas a cidade transformou-se em um dos principais destinos do país para o turismo nacional e internacional, fazendo do turismo um importante analisador da coreografia em busca de s...

  4. Funcionamiento sexual, satisfacción sexual y bienestar psicológico y subjetivo en una muestra de mujeres españolas

    OpenAIRE

    2011-01-01

    El propósito de este estudio fue explorar la relación entre diversas variables relacionadas con el funcionamiento sexual, la satisfacción sexual y el bienestar psicológico y subjetivo de una muestra de mujeres españolas. Las participantes fueron 157 mujeres estudiantes universitarias que completaron una batería de cuestionarios sobre sexualidad. Para analizar la relación entre las variables objeto de estudio, se llevaron a cabo varios análisis de regresión lineal múltiple con la satisfacción ...

  5. "Tuvimos que estar allá pa'hacer algo aquí": Formas de vida transnacional y trabajo femenino, realidades en Michoacán

    Directory of Open Access Journals (Sweden)

    Angélica NAVARRO OCHOA

    2012-01-01

    Full Text Available Este trabajo centra el interés en aspectos particulares de las relaciones y dinámicas que los habitantes de dos localidades michoacanas establecen para mantener una forma de vida que desarrolla prácticas que articulan, de manera simultánea, varios lugares dentro de una dimensión espacial transnacional. Ahí, las actividades laborales, la cultura, las relaciones conyugales y familiares son producidas, transportadas y reinscritas por aquellos que se ven involucrados en los flujos migratorios. De esta forma se muestra cómo la familia --y sobre todo las esposas-- responden y se reorganizan para sobrevivir ante la migración de uno o varios de sus miembros o de ellas mismas. Estas mujeres construyen formas de vida donde la conyugalidad a distancia, el trabajo femenino y una mayor toma de decisiones se vuelven algo común para la reproducción familiar.

  6. Constitutive expression and enzymatic activity of Tan protein in brain and epidermis of Ceratitis capitata and of Drosophila melanogaster wild-type and tan mutants.

    Science.gov (United States)

    Pérez, M M; Sabio, G; Badaracco, A; Quesada-Allué, L A

    2011-09-01

    The present report shows a partial biochemical characterization and life cycle expression of N-β-alanyldopamine hydrolase (Tan protein) in Ceratitis capitata and Drosophila melanogaster. This enzyme catalyzes the hydrolysis of N-β-alanyldopamine (NBAD), the main tanning precursor of insect brown cuticles. It also plays an important role in the metabolism of brain neurotransmitters, recycling dopamine and histamine. In contrast to NBAD-synthase, Tan is expressed constitutively in epidermis and does not respond directly to microbial challenge. Immunodetection experiments showed the novel localization of NBAD-hydrolase in the embryo central neural system and in different regions of the adult brain, in addition to optic lobes. We sequenced and characterized Drosophila mutants tan¹ and tan³. The latter appears to be a mutant with normal expression in neural tissue but weak one in epidermis.

  7. Use of chitosan for chromium removal from exhausted tanning baths.

    Science.gov (United States)

    Cesaro, Raffaele; Fabbricino, Massimiliano; Lanzetta, Rosa; Mancino, Anna; Naviglio, Biagio; Parrilli, Michelangelo; Sartorio, Roberto; Tomaselli, Michele; Tortora, Gelsomina

    2008-01-01

    A novel approach, based on chitosan heavy-metal sequestrating ability, is proposed for chromium(III) removal from spent tanning liquor. Experimental results, obtained at lab-scale using real wastewater, are presented and discussed. Resulting efficiencies are extremely high, and strongly dependent on chitosan dose and pH value. Comparative analyses with other polysaccharides is also carried out showing that amine groups are more efficient than carboxyl and sulphate ones. Chromium recovery from sorption complexes and chitosan regeneration is finally proposed to optimize the whole process.

  8. MSSM and large tan$\\beta$ from SUSY trinification

    CERN Document Server

    Lazarides, G

    1994-01-01

    We construct a supersymmetric model based on the semi-simple gauge group SU(3)_c \\times SU(3)_L \\times SU(3)_R with the relation tan\\beta \\simeq m_t/m_b automatically arising from its structure. The model below a scale \\sim 10^{16} GeV gives naturally rise just to the minimal supersymmetric standard model and therefore to the presently favored values for sin^2 \\theta_w and \\alpha_s without fields in representations higher than the fundamental.

  9. UNA APROXIMACIÓN AL PAISAJE COMO CATEGORÍA JURÍDICA Y DERECHO SUBJETIVO EN EL PLAN DE ORDENAMIENTO TERRITORIAL DE MEDELLÍN.

    Directory of Open Access Journals (Sweden)

    César Augusto Molina Saldarriaga

    2013-05-01

    Full Text Available Se reflexiona en torno al paisaje como concepto en el orden jurídico colombiano a partir del análisis dogmático de normas internacionales, nacionales y locales. El objetivo es determinar la existencia del paisaje como categoría jurídica susceptible de protección como derecho subjetivo en el orden jurídico colombiano, y la normativa de planeación y gestión del suelo en la ciudad de Medellín. Del análisis se evidencia un tratamiento plurívoco, cuando no equívoco del paisaje. Esto se traduce en el tratamiento diverso que se le da en las normas de planeación y gestión del suelo urbano en la ciudad de Medellín. Se destaca la necesidad de reflexionar con mayor profundidad sobre la relación del paisaje con la planeación de la ciudad y la gestión del suelo, y la necesidad de un mayor activismo de los jueces en su protección como derecho subjetivo.

  10. Spectroscopy of TaN in Support of Fundamental Physics

    Science.gov (United States)

    Mawhorter, Richard; Sharfi, David; Kim, Yongrak; Kokkin, Damian; Bouchard, Jacob; Steimle, Timothy

    2016-05-01

    Tantalum nitride, TaN, has been recently identified as a leading candidate for extending the study of T, P-odd effects in the nuclear realm to include proton, neutron, and quark electric dipole moments (EDM) and beyond. This is primarily due to enhancements in the interaction of electrons with the nuclear magnetic quadrupole moment (MQM) and the resulting parity-violating effects. Study of the dispersed laser induced fluorescence resulting from the excitation of the 17570.80 (Ω = 0+) , 18427.38 (Ω = 0+) , 19216.80 (Ω = 1), and 19396.78 (Ω = 1) bands above the X1Σ+ (v = 0) ground state of TaN near 569 nm, 543 nm, 520 nm, and 515 nm has enabled a determination of the branching ratios and transition dipole moments of all 4 states. Radiative lifetimes of 454(32) ns, 479(12) ns, 333(4) ns, and 480(17) ns respectively were measured from an analysis of the fluorescence decay curves, and potential optical pumping approaches for both populating and detecting the parity-violation sensitive 3Δ1 state are proposed. Further experiments using CW laser excitation have enabled the observation of the hyperfine structure of several bands in the gateway 18427.38 (Ω = 0+) to X1Σ+ (v = 0) transition, and analysis of these complex spectra is underway. DK, JB, and TS acknowledge support from NSF CHE-1265885, as do RM, DS, and YK from Pomona College.

  11. Study of the dechroming of tanned leather wastes

    Directory of Open Access Journals (Sweden)

    Botić Tatjana

    2004-01-01

    Full Text Available According to European legislation, it is not possible to dump any chromium-containing waste in Europe. The minimization of wastes is a key element in that strategy. It involves the application of clean technologies: low and non-waste technologies. The tanning industry generates substantial quantities of chromium-containing solid waste in the form of shavings and trimmings. The recycling and reuse of those wastes must be the primary target in optimizing processes of the leather industry. The problem is in a satisfying chromium separation from collagen fibers. Common hydrolysis processes-alkaline or acidic-give gelatins containing residual chromium (III. By using an oxidation agent (H2O2 before alkaline hydrolysis, in was demonstrated that chromium from chromium-containing leather wastes can be almost fully recovered by the previous oxidation of Cr(III to Cr(VI. This chromium can be reused in the tanning process. That would represent an economic saving. The best result of the dechroming process was a gelatin hydrolyzate with only 1.11 in respect to the initial amount.

  12. Enhancement of chromium uptake in tanning using oxazolidine.

    Science.gov (United States)

    Sundarapandiyan, S; Brutto, Patrick E; Siddhartha, G; Ramesh, R; Ramanaiah, B; Saravanan, P; Mandal, A B

    2011-06-15

    Monocyclic and bicyclic oxazolidines were offered at three different junctures of chrome tanning process viz. prior to BCS offer, along with BCS and after basification. It was found that oxazolidine when offered after basification brought about better chromium uptake and reduction of chromium load in the wastewater. Offer of oxazolidine was also varied. Increase in offer of oxazolidine from 0.25% to 1% was found to enhance the chromium uptake and decrease the chromium load in wastewater. But the increase in uptake was not proportionate to the increase in oxazolidine offer more than 0.75%. Offer of 1% Zoldine ZA 78 (monocyclic oxazolidine) and Zoldine ZE (bicyclic oxazolidine) after basification brought about 63.4% and 73.1% enhancement in chrome content in leather compared to control where oxazolidine was not offered. The tone of the wetblue was found to be altered moderately. However this did not call for any process adjustments in wet-finishing. The oxazolidine treated leathers were found to be immensely fuller and tighter. It was found experimentally that offer of 1% of oxazolidine facilitated reduction in the offer of syntans administered for filling and grain tightening by around 46%. Oxazolidine could bring about significant reduction in cost of chemicals apart from resulting environmental benefits due to enhancement of chromium uptake during tanning.

  13. Alkali-free method of hide preparation for tanning

    Directory of Open Access Journals (Sweden)

    V. Valeika

    2012-06-01

    Full Text Available Usually, beamhouse processes are carried out by varying a medium from strongly alkaline (unhairing-liming up to strongly acid (pickling. This study is designed to develop a preparation of hide for tanning via processes that avoid a sharp change of hide pH. Enzymes active in acid medium are employed for hide unhairing in a buffer system containing 2.5% acetic acid and 0.3% sodium acetate. An oxidative treatment with peracetic acid then allows the complete removal of residual hair and scud. During both processes, unhairing and oxidative treatment, the opening of the derma structure occurs: 13.3-14.6g of non-collagen proteins are removed and amount of dermatan sulphate decreases by 35%. The hide obtained can be chromed directly after the above processes and subsequent treatment with sodium chloride solution omitted conventional pickling. The pH of the hide varies in the range of 8.3-3.7 during the processes of preparation for tanning.

  14. Hydrolysis of tanned leather wastes under alkaline, acidic and oxidative conditions

    OpenAIRE

    Botić Tatjana; Ilišković Nadežda

    2006-01-01

    Different wastes in large quantities are the outcome or the by-product of processes in the tanning industry. The largest part of solid wastes is collagen based and obtained in the reprocessing steps of tanned and non-tanned products. The quality collagen substance obtained from wastes of the leather industry used as a supporting material in many reprocessing industries. Hydrolysis is the basic step of collagen processing, namely the shortening of its polypeptide chain. The main goal of this i...

  15. Lifetime history of indoor tanning in young people: a retrospective assessment of initiation, persistence, and correlates

    Directory of Open Access Journals (Sweden)

    Lostritto Karen

    2012-02-01

    Full Text Available Abstract Background Despite educational and public health campaigns to convey the risks of indoor tanning, many individuals around the world continue to engage in this behavior. Few descriptive studies of indoor tanning have collected information pertaining to the lifetime history of indoor tanning, thereby limiting our ability to understand indoor tanning patterns and potentially target interventions for individuals who not only initiate, but continue to persistently engage in indoor tanning. Methods In-person interviews elicited detailed retrospective information on lifetime history of indoor tanning among white individuals (n = 401 under age 40 seen by a dermatologist for a minor benign skin condition. These individuals were controls in a case-control study of early-onset basal cell carcinoma. Outcomes of interest included ever indoor tanning in both males and females, as well as persistent indoor tanning in females - defined as females over age 31 who tanned indoors at least once in the last three or all four of four specified age periods (ages 11-15, 16-20, 21-30 and 31 or older. Multivariate logistic regression was used to identify sociodemographic and lifestyle correlates of ever and persistent indoor tanning in females. Results Approximately three-quarters (73.3% of females and 38.3% of males ever tanned indoors, with a median age of initiation of 17.0 and 21.5, respectively. Among indoor tanners, 39.3% of females and 21.7% of males reported being burned while indoor tanning. Female ever indoor tanners were younger, had darker color eyes, and sunbathed more frequently than females who never tanned indoors. Using unique lifetime exposure data, 24.7% of female indoor tanners 31 and older persistently tanned indoors starting as teenagers. Female persistent indoor tanners drank significantly more alcohol, were less educated, had skin that tanned with prolonged sun exposure, and sunbathed outdoors more frequently than non-persistent tanners

  16. Mood changes after indoor tanning among college women: associations with psychiatric/addictive symptoms

    Directory of Open Access Journals (Sweden)

    Carolyn Heckman

    2016-06-01

    Full Text Available Indoor tanning (IT has been linked with psychiatric and addictive symptoms, and frequent tanning may indicate tanning dependence (addiction. The current study evaluated the effects of an IT episode on mood states and the association of these effects with psychiatric and addictive symptoms among young adult female indoor tanners. One-hundred thirty-nine female university students aged 18-25 years who had indoor tanned completed an online survey including the Positive and Negative Affects Scales and a standardized psychiatric interview (the MINI International Neuropsychiatric Interview via telephone. Psychiatric and addictive symptoms were relatively common among these young adult female indoor tanners. Overall, participants reported significant decreases in both negative (upset, scared, irritable, nervous, jittery, afraid and positive (feeling interested mood states after their most recent tanning episode. Multivariable linear regression analyses showed that more frequent indoor tanning in the past month and symptoms of illicit drug use disorders were associated with decreases in negative mood, and symptoms of generalized anxiety disorder were associated with a decrease in feeling interested. In summary, indoor tanners report relatively high rates of psychiatric and substance use symptoms, including symptoms of tanning dependence, and indoor tanning appears to alter mood. Women with certain substance use and psychiatric characteristics may be more vulnerable to such mood changes after tanning indoors. Further research is needed to clarify the relationships among these variables.

  17. Radiological characterization of the TAN-IET facility

    Energy Technology Data Exchange (ETDEWEB)

    Koeppen, L.D.; Rodriguez, S.V.; Wheeler, O.A.; Cadwell, E.D.; Simpson, O.D.

    1982-06-01

    The Initial Engine Test (IET) facility is located on the Idaho National Engineering Laboratory (INEL) site at the north end of Test Area North (TAN). The IET facility was constructed and used for the Aircraft Nuclear Propulsion Program during the 1950's and was later used for two other programs: the Space Nuclear Auxiliary Power Transient (SNAP-TRAN) and the Hallam Decontamination and Decommissioning Project. The facility is no longer in use, therefore, a complete radiological characterization was conducted at the IET site. The characterization included measurements of beta-gamma dose rates; beta-gamma and alpha surface contamination; concentrations of selected radionuclides in subsurface storage tanks, surface soil, the exhaust duct, stack and test pad; and a walk-over surface survey of the entire facility. The information contained in this report will be of great value as the IET facility goes through the decommissioning and decontamination process.

  18. XLPE/PE电缆的0.1 Hz超低频tanδ测量%tanδ Measurement Using 0.1 Hz Voltage for XLPE Cable

    Institute of Scientific and Technical Information of China (English)

    隋文波; 孙显增; 王作君

    2001-01-01

    介绍了XLPE/PE电缆现场试验新方法--0.1 Hz超低频电压试验的基本原理和测量技术,用它测量电缆tanδ可以敏感地检查电缆绝缘的整体缺陷.给出了XLPE电缆tanδ现场测量结果.

  19. Exposure to the 'Dark Side of Tanning' skin cancer prevention mass media campaign and its association with tanning attitudes in New South Wales, Australia.

    Science.gov (United States)

    Perez, Donna; Kite, James; Dunlop, Sally M; Cust, Anne E; Goumas, Chris; Cotter, Trish; Walsberger, Scott C; Dessaix, Anita; Bauman, Adrian

    2015-04-01

    Melanoma is the most common cancer among 15- to 29-year-olds in Australia, with rates increasing with age. The 'Dark Side of Tanning' (DSOT) mass media campaign was developed in 2007 to influence attitudes related to tanning. This study aimed to assess recall and impact of the DSOT campaign. Data were collected using online surveys of 13- to 44-year-olds living in New South Wales in the summer months of 2007-2010 (n = 7490). Regression models were used to determine predictors of recall of DSOT and to investigate associations between exposure to the campaign and tanning attitudes. The campaign achieved consistently high recall (unprompted recall 42-53% during campaign periods; prompted recall 76-84%). Those who recalled DSOT advertisements had a higher likelihood of reporting negative tanning attitudes compared with those who reported no recall, after adjusting for other factors (odds ratio [OR] 1.13, 95% confidence interval [CI] 1.01-1.27 for unprompted recall; OR 1.19, 95% CI 1.03-1.36 for prompted recall). Being interviewed in later campaign years was also a significant predictor of negative tanning attitudes (e.g. fourth year of campaign versus first year: OR 1.24, 95% CI 1.01-1.53). These results suggest that mass media campaigns have potential to influence tanning-related attitudes and could play an important role in skin cancer prevention.

  20. The potential carcinogenic risk of tanning beds: clinical guidelines and patient safety advice

    Directory of Open Access Journals (Sweden)

    Mette Mogensen

    2010-10-01

    Full Text Available Mette Mogensen1, Gregor BE Jemec21Department of Dermatology, Gentofte Hospital, Hellerup, Denmark; 2Department of Dermatology, Roskilde Hospital, Health Sciences Faculty, University of Copenhagen, Roskilde, DenmarkIntroduction: In 2009, the WHO listed ultraviolet (UV radiation as a group 1 carcinogen. In spite of this, each year, millions of people tan indoor in Western countries. The aim of this review is to summarize evidence of tanning bed carcinogenesis and to present guidelines for use of tanning beds and patient safety advice.Methods: A narrative review of the literature was conducted based on both PubMed and Medline searches and on literature review of the retrieved papers.Results: Use of indoor tanning beds represents a significant and avoidable risk factor for the development of both melanoma and nonmelanoma skin cancers. Frequent tanners are more often adolescent females. Tanning beds have additional potential adverse effects such as burns, solar skin damage, infection, and possibly also addictive behavior.Discussion: The effort in preventing UV light-induced carcinogenesis should currently be aimed at developing new strategies for public health information. Tanning beds are one preventable source of UV radiation. In the majority of people solar UV radiation continues to be the major factor and therefore anti-tanning campaigns must always include sunbathers.Keywords: tanning beds, skin cancers, melanoma, nonmelanoma

  1. On Chinese American Identity Dilemma in Amy Tan's The Bonesetter's Daughter

    Institute of Scientific and Technical Information of China (English)

    梁福江

    2010-01-01

    In The Bonesetter's Daughter,Amy Tan explores the complexity of Chinese American identity dilemma confronted by the major charactersThis paper in-tends to examine the marginalized position of the Chinese immigrant mother Luling and the American bom daughter Ruth and reveal the ideology of Amy Tan's writing beyond the bounds of ethnicity.

  2. Sun-Tanning Perceptions of a New Zealand Urban Population (1994–2005/6

    Directory of Open Access Journals (Sweden)

    A. I. Reeder

    2014-01-01

    Full Text Available Background. Sun-tanning perceptions are monitored to identify changes and help refine targeting of skin cancer prevention messages. Aim. To investigate associations between perceptions of sun-tanning and demographic factors among a New Zealand urban population, 1994–2006. Methods. A telephone survey series was conducted during summer in 1994, 1997, 1999/2000, 2002/2003, and 2005/2006. Demographic and personal information (sex, age group, skin sun-sensitivity, and self-defined ethnicity obtained from 6,195 respondents, 50.2% female, 15–69 years, was investigated in relation to six sun-tanning related statements. A total “positive perceptions of tanning” (ProTan score was also calculated. Regression analyses modelled each component and the ProTan score against survey year and respondent characteristics. Results. Statistically significantly higher ProTan scores were found for age group (strong reverse dose-response effect, male sex, residence (highest in Auckland, ethnicity (highest among Europeans, and sun sensitivity (an n-shaped association. There was no statistically significant change in total ProTan scores from baseline. Conclusions. The development, pretesting, and evaluation of messages for those groups most likely to endorse ProTan statements should be considered for the New Zealand skin cancer prevention program. To achieve and embed significant change, mass media campaigns may require greater intensity and reinforcement with sustained contextual support for settings-based behavioural change.

  3. 77 FR 37838 - Disregarded Entities and the Indoor Tanning Services Excise Tax

    Science.gov (United States)

    2012-06-25

    ... Services Excise Tax AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Notice of proposed rulemaking... (including qualified subchapter S subsidiaries) and the indoor tanning services excise tax. These regulations affect disregarded entities responsible for collecting the indoor tanning services excise tax and...

  4. Psychosocial aspects associated with use of sunscreen, natural sunlight exposure, and artificial tanning.

    Science.gov (United States)

    Ventenilla, Jessica; França, Katlein; Lotti, Torello; Keri, Jonette

    2017-02-08

    Natural and artificial tanning have become very popular in Western culture, yet at the same time, there is still a psychodermatology concern for this activity. Not much has been examined with the psychological aspects of tanning and sunscreen use. The purpose of this study is to examine the psychosocial effects associated with sun protection, natural, and artificial tanning among individuals 18 years old or older visiting the University of Miami Dermatology Outpatient Clinic. We distributed a survey on tanning and sunscreen use to 150 dermatology outpatients, hospital employees, and hospital visitors for three weeks during June/July 2015 asking about how often they tan, use sunscreen, and how they feel about this topic. Demographics, such as gender, ethnicity, and education were taken into consideration to examine the different responses in each category. Our results suggest that people's perception to tanning and sunscreen use have evolved over time. Most people in South Florida nowadays feel guilty when exposed to natural sunlight without sunscreen and do not tan frequently. The majority of the people, specifically women, utilize the recommended amount of sunscreen with a sun protection factor of 30-50. However, we can conclude that communication between social media and the general public can affect people's decision-making on tanning and sunscreen use with physician advice being the most effective method of encouraging people to use sunscreen. This study will add to the growing knowledge about psychodermatology.

  5. Quest for Self—An Interpretation of Amy Tan's The Joy Luck Club

    Institute of Scientific and Technical Information of China (English)

    杨平

    2015-01-01

    Based on the text analysis of Amy Tan's The Joy Luck Club this dissertation tries to prove that Amy Tan uses this semi-autobiographical novel as attempted quests for her identity in American society and tries to understand her own relationship with her mother.

  6. Kamu Malı ve Hizmeti Tanımı

    OpenAIRE

    Akkoyunlu, Pınar

    2013-01-01

    Bu makale kamu malı ve hizmetinin tanımı ile ilgilidir. Tanımın hangi unsurları içermesi sorusuna cevap aranmaktadır. Değişik kaynaklardan alınan tanımlar gözden geçirildikten sonra, özel mal ile kamu malı arasındaki farkları öne çıkaran bir örneğe yer verilmiştir. Kanımızca, kamu malı ve hizmeti tanımında, sadece kişisel seçim biçimlerini etkileyen unsurlara yer verilmelidir. Bu nedenle kamu malı ve hizmetinin devlet bütçesinden finansmanı tanıma dahil edilmemelidir; çünkü devlet tarafından ...

  7. Los espacios subjetivos del miedo: construcción de la estigmatización espacial en relación con la inseguridad delictiva urbana

    Directory of Open Access Journals (Sweden)

    Oscar Luis Pyszczek

    2012-01-01

    Full Text Available El temor al delito es parte constitutiva de las incertidumbres de las sociedades contemporáneas. Estas incertidumbres se consolidan y expresan en la experiencia diaria de los ciudadanos y en el intercambio simbólico-perceptivo del espacio. El objetivo del artículo consiste en realizar una aproximación al campo de estudio de los espacios subjetivos y, específicamente, a la estigmatización espacial, mediante el análisis de la dimensión espacial de la percepción de inseguridad delictiva a nivel barrial en la ciudad de Resistencia, capital de la provincia del Chaco en Argentina, tomada como sujeto de estudio.

  8. El reconocimiento de los derechos públicos subjetivos y la reforma constitucional en materia de derechos humanos de junio de 2011

    Directory of Open Access Journals (Sweden)

    Francisco José Murillo Ruiseco

    2013-02-01

    Full Text Available El reconocimiento de los derechos públicos subjetivos constituye uno de los principios fundamentales del Estado moderno. Limitarse a considerar los derechos del hombre frente al Estado como una esfera extrajurídica al modo de Hans Kelsen, o como una capacidad de hacer o no hacer optativa al modo que Eduardo García Máynez, no permite comprender el contenido con que la idea se ha ido presentando históricamente. Los derechos reconocidos al hombre frente al Estado no son puramente libertad en el sentido formalista, sino aptitud de exigir al propio Estado una cierta conducta y no se podrá concebir el concepto en su plenitud sino a condición de que se haga una revisión, siquiera superficial, de su proceso de transformación

  9. A vida na fazenda: sentidos subjetivos do servidor fazendário ante a participação no trabalho.

    Directory of Open Access Journals (Sweden)

    Rogério Zanon da Silveira

    2011-12-01

    Full Text Available O problema de pesquisa deste estudo tem origem em inquietações dos autores, ao longo de mais de vinte anos de serviço público, sobre a diversidade e a complexidade da participação no trabalho, nem sempre explicável objetivamente: que sentidos subjetivos perpassam o servidor público fazendário no que tange à participação no trabalho? Este artigo visa compreender os sentidos subjetivos do servidor fazendário ante a participação no trabalho. O referencial teórico é a teoria da subjetividade na perspectiva histórico-cultural de González Rey (2003, 2005, que propõe uma concepção de subjetividade baseada numa compreensão histórico-cultural do homem, rompendo com a dicotomia entre o social e o individual. A essa perspectiva da subjetividade são associados estudos de autores (inter nacionais sobre a participação no trabalho, como O’Donoghue, Stanton e Bartram (2011, Zani e Spinelli (2010, Neves e Castro (2010, Palgi (2006, Cox, Zagelmeyer e Marchington (2006, Demo (1988, Coutinho (2006 e Leal Filho (2009. Adota-se um conceito de participação associado às formas e aos meios pelos quais os trabalhadores e dirigentes de uma organização influenciam seus destinos (MOTTA, 1999. Trata-se de um estudo de natureza qualitativa baseada na epistemologia qualitativa (GONZÁLEZ REY, 2005. As interpretações fundamentam-se na acepção de sentido subjetivo (GONZÁLEZ REY, 2003, 2005. Os sujeitos pesquisados são sete auditores fiscais da Secretaria de Estado da Fazenda do Espírito Santo (Sefaz. O levantamento dos dados deu-se em quatro momentos empíricos, entre julho de 2009 e fevereiro de 2010. As interpretações evidenciam sentidos subjetivos relevantes em cada um dos sujeitos ante a participação no trabalho, associados, entre outros: à visão ideológica, ao núcleo familiar, à autoestima, ao novo e à mudança, à formalidade e à família. Os resultados possibilitam também identificar elementos marcantes da subjetividade

  10. El largo camino hacia el estudio científico de la satisfacción con la vida y el bienestar subjetivo

    Directory of Open Access Journals (Sweden)

    Francisco Augusto Laca Arocena

    2015-07-01

    Full Text Available Partiendo de la evidencia de que la búsqueda de la satisfacción con la vida y la discusión sobre los criterios de ordenar la propia hacia ese logro constituyen una constante literaria en nuestra historia, este texto inicia con un contraste entre lo que ya avanzaron los filósofos al respecto en los siglos pasados y lo que la reciente psicología positiva o del bienestar subjetivo va encontrando. El número de pensadores elegidos entre los que trataron este tema en el pasado ha debido ser limitado a los que el autor entiende muy representativos de este reflexionar sobre las condiciones que influyen en la satisfacción de la existencia por razones de espacio narrativo. Posteriormente, se describen resultados de investigaciones propias en el ámbito de la psicología positiva, situándolos en el contexto de la discusión entre la perspectiva hedónica y la eudaemónica que hoy ocupan el reflexio- nar en el ámbito de la psicología de la satisfacción con la vida y del bienestar subjetivo. Abstract This paper begins making a contrast between what philosophers stated in the last centuries about the search for satisfaction with life, as well as the discussion over the criteria to organize our own lives aimed to that purpose, and what the recent positive psychology or the subjective well-being are finding. The number of thinkers chosen among those who dealt with the subject in the past had to be limited to those the author considered the most representatives of this reflect on the conditions that influence the satisfaction with the existence having in mind limitations of narrative space. Subsequently, the author describes his research findings in the field of positive psychology placed in the context of discussion between the hedonic and eudemonic perspective that occupy nowadays the thinking in the scope of psychology of satisfaction with life and subjective well-being. Resumo Com base na evidência de que a busca de satisfac

  11. Condiciones económicas y capital social como determinantes de la salud y el bienestar subjetivo. El caso de Argentina durante 1995 y 2006

    Directory of Open Access Journals (Sweden)

    Mariana De Santis

    2014-12-01

    Full Text Available Se estima la probabilidad conjunta de ser feliz y tener buena salud controlando el efecto de características económicas, sociales y demográficas. Se estimó un modelo probit bivariado empleando datos de la encuesta World Values Survey para Argentina en 1995 y 2006. Los resultados indican que la probabilidad de tener buena salud y de ser feliz incrementa a medida que lo hace el nivel socioeconómico y el nivel de confianza en las instituciones por parte de los individuos. Se concluye que es posible incrementar la salud y el bienestar subjetivo de las personas en desventaja socioeconómica fortaleciendo el capital social.

  12. El humor es algo serio

    Directory of Open Access Journals (Sweden)

    Carmen Guiralt Gomar

    2016-07-01

    Full Text Available Reseña del libro colectivo El humor frente al poder. Prensa humorística, cultura política y poderes fácticos en España (1927-1987, editado por Enrique Bordería Ortiz, Francesc-Andreu Martínez Gallego y Josep Lluís Gómez Mompart y publicado en 2015 por Biblioteca Nueva, dentro de su “Colección Historia”. El volumen, resultado del Grupo de Investigación en Comunicación Humorística y Satírica (GRICOHUSA, consiste en una compilación de trabajos científicos y de gran rigor académico acerca de la prensa humorística y satírica española durante las dos transiciones políticas de la historia contemporánea de España. Así, en él se analizan en profundidad semanarios y rotativos fundamentales del periodismo de humor español, tales como La Traca, Gutiérrez, La Codorniz, El Jueves y El Papus, entre muchos otros.

  13. Decrease in Self-Reported Tanning Frequency among Utah Teens following the Passage of Utah Senate Bill 41: An Analysis of the Effects of Youth-Access Restriction Laws on Tanning Behaviors

    Directory of Open Access Journals (Sweden)

    Rebecca G. Simmons

    2014-01-01

    Full Text Available Introduction. Adolescent use of indoor tanning facilities is associated with an increased risk in later development of melanoma skin cancers. States that have imposed age restrictions on access to indoor tanning generally show lower self-reported rates of indoor tanning than states with no restrictions, but currently no studies have assessed indoor tanning use before and after such restrictions. Methods. In 2013, we compared self-reported indoor tanning data collected in the Prevention Needs Assessment (PNA survey in 2011 to PNA 2013 data. We also assessed predictors of continued tanning after passage of the bill. Results. Prior to the passage of Senate Bill 41, 12% of students reported at least one incident of indoor tanning in the past 12 months. After passage, only 7% of students reported indoor tanning in the past 12 months (P < 0.0001. Students who continued indoor tanning were more likely to be older and female and to engage in other risk behaviors, including smoking and alcohol use. Lower parental education levels were also associated with continued tanning. Conclusion. Indoor tanning restrictions showed beneficial impact on tanning rates in adolescents in Utah. Stricter restrictions may show even greater impact than restrictions that allow for parental waivers. Stronger enforcement of bans is needed to further reduce youth access.

  14. Predictors of Sun-Related Behaviors among Young Women: Comparisons between Outdoor Tanners, Fake Tanners, and Tan Avoiders

    Science.gov (United States)

    Day, Ashley K.; Oxlad, Melissa; Roberts, Rachel M.

    2013-01-01

    Objective: Skin cancer incidence continues to rise as a tanned appearance remains desirable, particularly among young women. Fake tanning provides a tanned appearance without exposure to ultraviolet radiation. In order to advance our understanding of the factors that contribute to long-term behavior change, this study explores determinants…

  15. TanDEM-X双站SAR干涉测量及研究进展%TanDEM-X bistatic SAR interferometry and its research progress

    Institute of Scientific and Technical Information of China (English)

    孙亚飞; 江利明; 柳林; 孙永玲; 汪汉胜

    2015-01-01

    This paper comprehensively describes the scientific research plan of the TanDEM -X/TerraSAR -X bistatic SAR mission, with emphasis placed on its scientific objectives, TanDEM-X satellite parameters, orbital configuration and data acquisition modes. Then, the advantages of the new InSAR techniques including bistatic SAR, Pol-InSAR and digital beam forming are briefly discussed and the progress of the techniques of TanDEM-X bistatic SAR interferometry is analyzed. These new SAR techniques will greatly promote the application potential of SAR interferometry in Earth sciences such as global topography mapping, glaciology, oceanography and geology.%较全面、系统地介绍了TanDEM-X/TerraSAR-X双站SAR科学计划,重点涉及其科学目标、TanDEM-X卫星参数、轨道结构以及干涉数据获取模式等相关内容,并讨论了双站SAR成像、极化InSAR和数字波束成形等干涉测量新技术及其研究进展。这些双站SAR新技术的实现将大大地推动SAR干涉测量在全球地形测绘、冰川学、海洋学及地质学等领域中的应用。

  16. Issues in the preservation of manually tanned skin materials

    Directory of Open Access Journals (Sweden)

    Torunn Klokkernes

    2008-10-01

    Full Text Available The field of conservation relates to material science and technology as a fundamental aspect to understand artefacts’ material properties and deterioration. The research performed in this study is an initial approach to the understanding of the complex nature of manually tanned skin materials manufactured by individual tradition bearers from indigenous cultures in the circumpolar area; it instigates a series of research topics which can be further addressed. Contextual interpretation comprises traditional knowledge and practices as well as the empirical information obtained through investigative and analytical methods. This requires collaboration between several areas of knowledge, and raises questions with regard to the interpretation of analytical results in the investigation of these material groups.La  conservation use de l’analyse matérielle et des technologies pour mieux comprendre les propriétés des artefacts et leurs mécanismes de dégradation. La présente recherche constitue une approche de la nature complexe des cuirs tannés au sein des cultures indigènes de la région circumpolaire. Elle suscite par ailleurs de nouveaux thèmes de recherches connexes. L’interprétation contextuelle, de son côté, englobe la connaissance des pratiques ainsi que les informations obtenues par des méthodes d’investigation analytique et exige la collaboration entre divers secteurs et disciplines.

  17. Human quadrupeds, primate quadrupedalism, and Uner Tan Syndrome.

    Directory of Open Access Journals (Sweden)

    Liza J Shapiro

    Full Text Available Since 2005, an extensive literature documents individuals from several families afflicted with "Uner Tan Syndrome (UTS," a condition that in its most extreme form is characterized by cerebellar hypoplasia, loss of balance and coordination, impaired cognitive abilities, and habitual quadrupedal gait on hands and feet. Some researchers have interpreted habitual use of quadrupedalism by these individuals from an evolutionary perspective, suggesting that it represents an atavistic expression of our quadrupedal primate ancestry or "devolution." In support of this idea, individuals with "UTS" are said to use diagonal sequence quadrupedalism, a type of quadrupedal gait that distinguishes primates from most other mammals. Although the use of primate-like quadrupedal gait in humans would not be sufficient to support the conclusion of evolutionary "reversal," no quantitative gait analyses were presented to support this claim. Using standard gait analysis of 518 quadrupedal strides from video sequences of individuals with "UTS", we found that these humans almost exclusively used lateral sequence-not diagonal sequence-quadrupedal gaits. The quadrupedal gait of these individuals has therefore been erroneously described as primate-like, further weakening the "devolution" hypothesis. In fact, the quadrupedalism exhibited by individuals with UTS resembles that of healthy adult humans asked to walk quadrupedally in an experimental setting. We conclude that quadrupedalism in healthy adults or those with a physical disability can be explained using biomechanical principles rather than evolutionary assumptions.

  18. Recycling of Chrome Tanned Leather Dust in Acrylonitrile Butadiene Rubber

    Science.gov (United States)

    El-Sabbagh, Salwa H.; Mohamed, Ola A.

    2010-06-01

    Concerns on environmental waste problem caused by chrome tanned leather wastes in huge amount have caused an increasing interest in developing this wastes in many composite formation. This leather dust was used as filler in acrylonitrile butadiene rubber (NBR) before treatment and after treatment with ammonia solution and sod. formate. Different formulations of NBR/ leather dust (untreated-treated with ammonia solution—treated with sod. formate) composites are prepared. The formed composite exhibit a considerable improvement in some of their properties such as rheometric characteristics especially with composites loaded with treated leather dust. Tensile strength, modulus at 100% elongation, hardness and youngs modulus were improved then by further loading start to be steady or decrease. Cross linking density in toluene were increased by incorporation of leather dust treated or untreated resulting in decreases in equilibrium swelling. Distinct increase in the ageing coefficient of both treated and untreated leather with drop in NBR vulcanizates without leather dust. Addition of leather dust treated or untreated exhibit better thermal stability.

  19. 77 FR 43157 - Disregarded Entities and the Indoor Tanning Services Excise Tax; Correction

    Science.gov (United States)

    2012-07-24

    ... Excise Tax; Correction AGENCY: Internal Revenue Service (IRS), Treasury. ACTION: Correcting amendment... qualified subchapter S subsidiaries) and the indoor tanning services excise tax. DATES: This correction is... Employment taxes, Estate taxes, Excise taxes, Gift taxes, Income taxes, Penalties, Reporting...

  20. Chemical functionalization and stabilization of type I collagen with organic tanning agents

    Energy Technology Data Exchange (ETDEWEB)

    Albu, Madalina Georgiana; Deselnicu, Viorica; Ioannidis, Ioannis; Deselnicu, Dana; Chelaru, Ciprian [Leather and Footwear Research Institute, Bucharest (Romania)

    2015-02-15

    We investigated the interactions between selected organic tanning agents and type I fibrillar collagen as a model fibrillar substrate to enable the fast direct evaluation and validation of interpretations of tanning activity. Type I fibrillar collagen (1%) as gel was used as substrate of tanning and tannic acid, resorcinol- and melamine-formaldehyde and their combination at three concentrations as crosslinking agents (tannins). To evaluate the stability of collagen during tanning, the crosslinked gels at 2.8, 4.5 and 9.0 pHs were freeze-dried as discs which were characterized by FTIR, shrinkage temperature, enzymatic degradation and optical microscopy, and the results were validated by statistical analyses. The best stability was given by combinations between resorcinol- and melamine-formaldehyde at isoelectric pH.

  1. Sun-Tanning Perceptions of a New Zealand Urban Population (1994–2005/6)

    OpenAIRE

    Reeder, A I; McLeod, G. F. H.; Gray, A. R.; McGee, R.

    2014-01-01

    Background. Sun-tanning perceptions are monitored to identify changes and help refine targeting of skin cancer prevention messages. Aim. To investigate associations between perceptions of sun-tanning and demographic factors among a New Zealand urban population, 1994–2006. Methods. A telephone survey series was conducted during summer in 1994, 1997, 1999/2000, 2002/2003, and 2005/2006. Demographic and personal information (sex, age group, skin sun-sensitivity, and self-defined ethnicity) obtai...

  2. Expressão do afeto e bem-estar subjetivo em pessoas casadas Expression of affection and well-being subjective in married people

    Directory of Open Access Journals (Sweden)

    Fabio Scorsolini-Comin

    2012-08-01

    Full Text Available O objetivo deste estudo foi verificar as correlações existentes entre os domínios do bem-estar subjetivo (BES e a expressão do afeto. A amostra foi composta por 106 pessoas casadas. Os instrumentos utilizados foram: Questionário Sociodemográfico, Escala Abipeme, Escala de Bem-estar Subjetivo e Escala de Ajustamento Diádico. Os resultados da análise multivariada evidenciaram que a expressão do afeto está correlacionada com afetos positivos e negativos, mas significativamente relacionada apenas à categoria de afetos positivos, a partir da seleção de variáveis pelo método stepwise (rho = 0,04; p = 0,01. Desse modo, quanto mais a pessoa se sente feliz, mais tende a expressar sua afetividade quando está com o parceiro. A partir das contribuições da Psicologia Positiva, podemos compreender que o modo como cada cônjuge se sente em termos individuais e se coloca em relação ao mundo e às diferentes experiências contribui para que se sinta seguro e possa expressar a afetividade de maneira mais satisfatória.This study aimed at analyzing and comparing the constructs of subjective well-being and the expression of affection, using a sample of 106 married people. The following instruments were used: Sociodemographic Questionnaire, Socioeconomic Questionnaire, Dyadic Adjustment Scale and Subjective Well-being Scale. The results showed that expression of affection is correlated with positive affect and negative affect, but only significantly related to the level of positive affect from the variable selection stepwise (rho = 0.04, p = 0.01. Thus, the more one feels happy and willing to establish contacts with other, the more likely to also express their affection when you're with your partner. According to the Positive Psychology, the way each partner feels in individual terms and arises in relation to the world and different experiences helps them to feel safe and can express affection in a more satisfactory way.

  3. Comparison of advertising strategies between the indoor tanning and tobacco industries.

    Science.gov (United States)

    Greenman, Jennifer; Jones, David A

    2010-04-01

    The indoor tanning industry is large and continues to grow, with 2007 domestic sales in excess of $5 billion. Advertising is central to shaping the consumer's perception of indoor tanning as well as driving industry demand. This article aims to identify key drivers of consumer appeal by comparing tanning advertising strategies to those used by tobacco marketers. Tobacco advertising was selected as a reference framework because it is both well documented and designed to promote a product with known health hazards. Two thousand advertisements from 4 large tobacco advertisement databases were analyzed for type of advertisement strategy used, and 4 advertising method categories were devised to incorporate the maximum number of advertisements reviewed. Subsequently, contemporary tanning advertisements were collected from industry magazines and salon websites and evaluated relative to the identified strategy profiles. Both industries have relied on similar advertising strategies, including mitigating health concerns, appealing to a sense of social acceptance, emphasizing psychotropic effects, and targeting specific population segments. This examination is a small observational study, which was conducted without rigorous statistical analysis, and which is limited both by the number of advertisements and by advertising strategies examined. Given the strong parallels between tobacco and tanning advertising methodologies, further consumer education and investigation into the public health risks of indoor tanning is needed.

  4. First-principles study of the structural stability and electronic structures of TaN

    Energy Technology Data Exchange (ETDEWEB)

    Cao, C.L.; Yuan, G. [School of Information and Engineering, Ocean University of China, QingDao 266100 (China); Hou, Z.F. [Department of Physics, Fudan University, Shanghai 200433 (China)

    2008-08-15

    Using the plane-wave pseudopotential method within the generalized gradient approximation, we have studied the structural stability and electronic structures for several TaN phases. Our results show CoSn is the calculated ground-state structure of TaN among the five crystallographic structures that have been studied. The order of energetic stability of phase structures of TaN from low to high is: CsClTaN in the CoSn and WC structures is due to the formation of pseudogap around the Fermi level and the stronger hybridization between N-2p states and Ta-5d states. TaN in all structures studied has a metallic nature. The calculated bulk modulus indicates that TaN in the WC structure may be a less compressible material. (copyright 2008 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

  5. Estudio sobre las estrategias de afrontamiento y el bienestar subjetivo, psicológico y social en mujeres internas en un centro de reclusión femenino del Caribe colombiano (2012

    Directory of Open Access Journals (Sweden)

    Martha Rambal-Simanca

    2014-12-01

    Full Text Available La investigación tuvo como objetivo determinar la relación entre las estrategias de afrontamiento y el bienestar subjetivo, psicológico y social, durante el año 2012, de mujeres internas en un centro de reclusión femenino en el Caribe colombiano. La muestra estipulada para el estudio consistió en un total de 26 internas de ese centro de reclusión. Para la medición se aplicó la adaptación al español, realizada por Blanco & Díaz (2005, de las escalas de: Bienestar Subjetivo de Diener, Bienestar Psicológico de Ryff, Bienestar Social de Keyes y la Escala de Estrategias de Afrontamiento Individual de Londoño et ál. (2006. Los resultados mostraron que el uso de algunas estrategias de afrontamiento por parte de las reclusas está relacionado tanto con el bienestar psicológico como con el social; no obstante, no se encontró tal asociación con el bienestar de tipo subjetivo.

  6. A influência de ritmos musicais sobre a percepção dos estados subjetivos de pacientes adultos em hemodiálise La influencia de ritmos musicales sobre la percepción de los estados subjetivos de pacientes adultos en hemodiálisis The influence of musical rhythms on the perception of subjective states of adult patients on dialysis

    Directory of Open Access Journals (Sweden)

    Leandro Bechert Caminha

    2009-12-01

    Full Text Available Submeter-se à Hemodiálise quatro horas por dia, três vezes por semana, pode configurar-se uma experiência carregada de tédio, além de causar desconforto durante sua realização. É comum os pacientes relatarem que o tempo parece se arrastar ou durar mais. O objetivo deste estudo foi conhecer a influência de dois diferentes ritmos musicais nos estados subjetivos e na percepção tempo-sensorial de pacientes adultos submetidos à hemodiálise, uma vez que a literatura sobre essa temática é escassa. O estudo foi realizado em um hospital privado, com 43 pacientes em hemodiálise, que se submeteram a duas sessões de improvisação musical em um teclado, nas quais os estados subjetivos e a percepção temporal foram avaliados pré e pós-intervenção. Mais de 80% dos pacientes sentiu o tempo passar mais rápido após as intervenções em ambos os ritmos. No entanto, o ritmo influenciou o tipo de experiência emocional que os pacientes apresentaram.Someterse a la Hemodiálisis cuatro horas por día, tres veces por semana, puede configurarse en una experiencia cargada de tedio, además de causar incomodidad durante su realización. Es común que los pacientes relaten que el tiempo parece arrastrarse o durar más. El objetivo de este estudio fue conocer la influencia de dos diferentes ritmos musicales en los estados subjetivos y en la percepción del tiempo sensorial de pacientes adultos sometidos a la hemodiálisis, una vez que la literatura sobre esa temática es escasa. El estudio fue realizado en un hospital privado, con 43 pacientes en hemodiálisis, que se sometieron a dos sesiones de improvisación musical en un teclado, en las cuales los estados subjetivos y la percepción temporal fueron evaluados antes y después de la intervención. Más de 80% de los pacientes sintió el tiempo pasar más rápido después de las intervenciones en ambos ritmos. Sin embargo, el ritmo influenció el tipo de experiencia emocional que los pacientes

  7. Felicidade, bem-estar subjetivo e variáveis sociodemográficas, em grupos de estudantes universitários Felicidad, bienestar subjetivo y variables sociodemográficas, en grupos de estudiantes universitarios Happiness, subjective well-being and socio-demographic variables in groups of college students

    Directory of Open Access Journals (Sweden)

    José Augusto Dela Coleta

    2012-04-01

    Full Text Available Este estudo foi conduzido junto a 388 estudantes universitários, utilizando um conjunto de escalas para medida de variáveis associadas à felicidade, bem-estar subjetivo, comportamento social e algumas questões sobre dados biográficos. Os resultados mostraram que as escalas apresentam, em geral, altos índices de confiabilidade, resultados médios superiores aos esperados nas medidas de bem-estar subjetivo e coeficiente de correlação múltipla de 0,79 na predição da felicidade total. Ao se testarem as diferenças entre as médias dos diversos grupos, constituídos por suas características biográficas, verificou-se que as mulheres, os mais jovens, os casados ou namorados, os religiosos, os que estudaram em escolas privadas no ensino fundamental e públicas no ensino superior, que conhecem outros idiomas, com renda familiar mais alta, com altos níveis de escolaridade dos pais, com mais altos níveis socioeconômicos mostram-se significativamente mais populares, menos solitários, mais satisfeitos com a vida e mais felizes.Este estudio fue conducido con 388 estudiantes universitarios, utilizando un conjunto de escalas para medida de variables asociadas a la felicidad, bienestar subjetivo, comportamiento social y algunas cuestiones sobre datos biográficos. Los resultados mostraron que las escalas presentaron, en general, altos índices de confiabilidad, resultados medios superiores a los esperados en las medidas de bienestar subjetivo y coeficiente de correlación múltiple de 0,79 en la predicción de la felicidad total. En las pruebas de las diferencias entre los promedios de los diversos grupos, constituidos por sus características biográficas, se verificó que las mujeres, los más jóvenes, los casados o novios, los religiosos, los que estudiaron en escuelas privadas en la enseñanza básica y públicas en la enseñanza superior, que conocen otros idiomas, con renta familiar más alta, con altos niveles de escolaridad de los

  8. Características sociodemográficas, bienestar subjetivo y homofobia en una muestra de hombres gay en tres ciudades chilenas

    Directory of Open Access Journals (Sweden)

    Jaime Barrientos-Delgado

    2014-06-01

    Full Text Available Este artículo describe y caracteriza sociodemográficamente a una muestra de hombres gay en tres ciudades de Chile. Además, describe sus niveles de homofobia y bienestar subjetivo. Mediante un muestreo en cadena tipo bola de nieve se encuestó a 325 hombres que se autodefinieron como gay. Entre los principales hallazgos se encontró altos niveles de discriminación y victimización percibida. Además en comparación con estudios similares efectuados en el país, los encuestados presentan niveles mayores de bienestar social. La edad de los encuestados aporta diferencias para los niveles de bienestar social y no para las otras medidas. También, las personas con estudios superiores reportan mayores niveles de victimización y un mayor impacto vital de las situaciones de discriminación. Asimismo, si bien las personas que residen en Santiago reportan un mayor impacto relativo de los hechos de agresión, presentan mejores niveles de bienestar social y felicidad en comparación a las personas que viven en otras regiones.

  9. Aspectos subjetivos do morar e trabalhar na mesma comunidade: a realidade vivenciada pelo agente comunitário de saúde

    Directory of Open Access Journals (Sweden)

    Tatiana de Andrade Jardim

    2009-03-01

    Full Text Available O Agente Comunitário de Saúde (ACS é o elo entre comunidade e sistema de saúde no Programa Saúde da Família (PSF, sendo o único trabalhador que obrigatoriamente reside na comunidade onde trabalha. Seu trabalho é pautado no contato direto, contínuo e ininterrupto com a comunidade. Este artigo discute o processo de construção e manutenção da credibilidade dos agentes nas relações com a comunidade e os fatores subjetivos resultantes da congruência entre morar e trabalhar. Utilizou-se a metodologia proposta em Psicodinâmica do Trabalho, com ACS de Pirituba/SP. Concluiu-se que os agentes vivenciam constrangimentos no trabalho decorrentes de pertencerem à mesma comunidade na qual desempenham seu papel profissional e que o funcionamento do PSF e a precariedade dos demais níveis do sistema de saúde são fonte de sofrimento adicional. Essa porosidade entre trabalhar e morar na mesma comunidade expõe excessivamente os trabalhadores e há elevada contaminação do tempo do não trabalho.

  10. Aspectos subjetivos do morar e trabalhar na mesma comunidade: a realidade vivenciada pelo agente comunitário de saúde

    Directory of Open Access Journals (Sweden)

    Tatiana de Andrade Jardim

    Full Text Available O Agente Comunitário de Saúde (ACS é o elo entre comunidade e sistema de saúde no Programa Saúde da Família (PSF, sendo o único trabalhador que obrigatoriamente reside na comunidade onde trabalha. Seu trabalho é pautado no contato direto, contínuo e ininterrupto com a comunidade. Este artigo discute o processo de construção e manutenção da credibilidade dos agentes nas relações com a comunidade e os fatores subjetivos resultantes da congruência entre morar e trabalhar. Utilizou-se a metodologia proposta em Psicodinâmica do Trabalho, com ACS de Pirituba/SP. Concluiu-se que os agentes vivenciam constrangimentos no trabalho decorrentes de pertencerem à mesma comunidade na qual desempenham seu papel profissional e que o funcionamento do PSF e a precariedade dos demais níveis do sistema de saúde são fonte de sofrimento adicional. Essa porosidade entre trabalhar e morar na mesma comunidade expõe excessivamente os trabalhadores e há elevada contaminação do tempo do não trabalho.

  11. Sacrificio y negociación. Algunos obstáculos subjetivos a las conquistas feministas // Sacrifice and negotiation: some subjective obstacles to the feminist conquest

    Directory of Open Access Journals (Sweden)

    Mario Elkin Ramírez

    2012-06-01

    Full Text Available Algunas mujeres feministas escuchadas en consulta, se encuentran con que hay un obstáculo subjetivo para ejercer los derechos que han conquistado, una investigación al respecto y publicada como libro: Feminidades, sacrificio y negociación en el tiempo de los derechos revela que más allá de los condicionamientos culturales del patriarcado, estas mujeres deben resolver un asunto con su superyó femenino para salir de este impasse. El presente artículo es una reflexión-síntesis de dicha investigación. // Some feminist women seen in consultation, find a subjective obstacles to the feminism conquest; one research about that matter and published as the book: Femininities, sacrifice and negotiation in the time of rights reveals that beyond the cultural conditioning of the patriarchy, these women have to solve an issue with their feminine superego to overcome this impasse. This article is a reflection-synthesis of such research.

  12. Bases teóricas de bem-estar subjetivo, bem-estar psicológico e bem-estar no trabalho

    Directory of Open Access Journals (Sweden)

    Mirlene Maria Matias Siqueira

    Full Text Available A concepção de saúde inclui bem-estar como um conceito chave. Em decorrência, encontram-se na literatura diferentes proposições teóricas para bem-estar. Este artigo tem como objetivo apresentar duas visões tradicionais e uma concepção nova sobre bem-estar. Inicialmente, são revisadas as bases teóricas que sustentam o bem-estar subjetivo. As concepções sobre bem-estar psicológico, ancoradas nas teorias que desenharam os primórdios da psicologia positiva, são apresentadas na segunda seção. Na seqüência, o conceito de bem-estar no trabalho é formulado apontando-se seus componentes assentados em vínculos positivos com o trabalho e com a organização. Na seção que encerra o artigo, sugere-se uma articulação, com base nas proposições da psicologia positiva, no intuito de ampliar a compreensão de fatores que contribuem para promover uma existência mais saudável.

  13. Testing a social cognitive theory-based model of indoor tanning: implications for skin cancer prevention messages.

    Science.gov (United States)

    Noar, Seth M; Myrick, Jessica Gall; Zeitany, Alexandra; Kelley, Dannielle; Morales-Pico, Brenda; Thomas, Nancy E

    2015-01-01

    The lack of a theory-based understanding of indoor tanning is a major impediment to the development of effective messages to prevent or reduce this behavior. This study applied the Comprehensive Indoor Tanning Expectations (CITE) scale in an analysis of indoor tanning behavior among sorority women (total N = 775). Confirmatory factor analyses indicated that CITE positive and negative expectations were robust, multidimensional factors and that a hierarchical structure fit the data well. Social cognitive theory-based structural equation models demonstrated that appearance-oriented variables were significantly associated with outcome expectations. Outcome expectations were, in turn, significantly associated with temptations to tan, intention to tan indoors, and indoor tanning behavior. The implications of these findings for the development of messages to prevent and reduce indoor tanning behavior are discussed in two domains: (a) messages that attempt to change broader societal perceptions about tan skin, and (b) messages that focus more narrowly on indoor tanning-challenging positive expectations, enhancing negative expectations, and encouraging substitution of sunless tanning products.

  14. Green chemistry approaches to leather tanning process for making chrome-free leather by unnatural amino acids.

    Science.gov (United States)

    Krishnamoorthy, G; Sadulla, S; Sehgal, P K; Mandal, Asit Baran

    2012-05-15

    In the present study, green and sustainable method or eco-friendly approaches to tanning process based on unnatural D-amino acids (D-AA)-aldehyde (Ald) as a substitute for chrome-free tanning has been attempted. The distribution of optically active D-AA in tanned leather, the hydrothermal stability, the mechanical properties and resistance to collagenolytic activity of tanned leather, the evaluation of eco-friendly characteristics were investigated. Scanning electron microscopic (SEM) and Atomic force microscopic (AFM) analyses indicate the surface morphology and roughness, respectively, of the tanned leather collagen matrix. Shrinkage and Differential scanning calorimetric (DSC) analyses shows that the shrinkage temperature (T(s)) and denaturation temperature (T(d)) of tanned leather are related to the content of D-AA+Ald present in the leather matrix. It has been found that the T(s) of D-AA tanned leather is more than that of Ald tanned leather and also more or less equal to chrome tanned leather. Environmental impact assessment (EIA) shows that the developed process results in significant reduction in total solids content (TSC) and improves better biodegradability of organic compound present in the effluent compared to chrome tanning.

  15. Green chemistry approaches to leather tanning process for making chrome-free leather by unnatural amino acids

    Energy Technology Data Exchange (ETDEWEB)

    Krishnamoorthy, G.; Sadulla, S.; Sehgal, P.K. [Central Leather Research Institute, Council of Scientific and Industrial Research (CSIR), Adyar, Chennai 600 020 (India); Mandal, Asit Baran, E-mail: abmandal@hotmail.com [Central Leather Research Institute, Council of Scientific and Industrial Research (CSIR), Adyar, Chennai 600 020 (India)

    2012-05-15

    Highlights: Black-Right-Pointing-Pointer Unnatural D-AA assisted tanned leathers found soft and full possessing tight grain. Black-Right-Pointing-Pointer Increased hydrothermal stability of collagen via intra and inter molecular crosslink. Black-Right-Pointing-Pointer D-Ly+Ald tanned leathers revealed a properly oriented with well aligned structure. Black-Right-Pointing-Pointer D-AA in collagen creates new topologies inaccessible to homo chiral molecules. Black-Right-Pointing-Pointer Improves conventional tanning process, and reduce the total solid and liquid wastes. - Abstract: In the present study, green and sustainable method or eco-friendly approaches to tanning process based on unnatural D-amino acids (D-AA)-aldehyde (Ald) as a substitute for chrome-free tanning has been attempted. The distribution of optically active D-AA in tanned leather, the hydrothermal stability, the mechanical properties and resistance to collagenolytic activity of tanned leather, the evaluation of eco-friendly characteristics were investigated. Scanning electron microscopic (SEM) and Atomic force microscopic (AFM) analyses indicate the surface morphology and roughness, respectively, of the tanned leather collagen matrix. Shrinkage and Differential scanning calorimetric (DSC) analyses shows that the shrinkage temperature (T{sub s}) and denaturation temperature (T{sub d}) of tanned leather are related to the content of D-AA+Ald present in the leather matrix. It has been found that the T{sub s} of D-AA tanned leather is more than that of Ald tanned leather and also more or less equal to chrome tanned leather. Environmental impact assessment (EIA) shows that the developed process results in significant reduction in total solids content (TSC) and improves better biodegradability of organic compound present in the effluent compared to chrome tanning.

  16. "Oh yeah, they're looking": A thematic analysis of indoor UV tanning industry advertising and articles.

    Science.gov (United States)

    Prior, Suzanne M; Rafuse, Lindsay P

    2016-02-01

    Skin cancers are becoming more prevalent even though many can be prevented. Women are more knowledgeable than men about skin cancer, yet they are more likely to sunbathe deliberately and to use artificial tanning equipment. The purpose of this article is to examine messages that women receive about the benefits of a tan. Particularly, we focused on how the indoor UV tanning industry represents the value of a tan to women. We subjected five issues of Smart Tan Canada to thematic analysis. We examined language in advertisements and articles that promote an artificial tan to women. Four themes emerged: Be Beautiful and Sexy; Look Young; Feel Better; and Science, Health, and Nature. These themes are especially effective in a culture that routinely objectifies women and places a high degree of value on their appearance. We suggest that appearance-based interventions, media literacy training, and legislation could counteract the messages in the themes.

  17. The Growing Public Health Challenges of Exposure to Ultraviolet Radiation From Use of Indoor Tanning Devices in the United States.

    Science.gov (United States)

    Bowman, Diana M; Lewis, Ryan C; Lee, Maximilian S; Yao, Catherine J

    2015-08-01

    Ultraviolet radiation is recognized as a human carcinogen by the International Agency for Research on Cancer, the world's authority on cancer research. In particular, exposure to ultraviolet radiation can lead to melanoma of the skin, which is the deadliest form of skin cancer in the United States. Yet despite the significant public health burden that is associated with skin cancer in the United States, each year over a million Americans engage in indoor tanning where exposure to artificial ultraviolet radiation occurs. In this article, we argue for an immediate ban on the use of commercial indoor tanning by minors and, based on international precedents, the phasing out of all commercial tanning operations in the United States. We consider the use of indoor tanning devices in the United States, epidemiological data on indoor tanning devices and cancer, regulation of tanning devices, and scientific evidence for increased government intervention.

  18. How Do Perceived Descriptive Norms Influence Indoor Tanning Intentions? An Application of the Theory of Normative Social Behavior.

    Science.gov (United States)

    Carcioppolo, Nick; Orrego Dunleavy, Victoria; Yang, Qinghua

    2017-02-01

    Indoor tanning bed use is highly influenced by perceived norms about a tanned appearance. The theory of normative social behavior (TNSB) details the many ways in which norms can impact intentions and behavior, but has never been assessed in the context of indoor tanning. Considering this, we conducted a survey among female university students (N = 274) to determine the extent to which the TNSB predicted intentions to use indoor tanning beds. Overall, the path model predicted about 46% of the variance in intentions, and the majority of significant indirect effects were witnessed through the outcome expectation variables included in the TNSB, suggesting that these may be the most salient mechanisms-as predicted by the TNSB-through which norms can impact tanning intentions. In light of these results, theoretical and practical implications are discussed, and specific recommendations are given to extend the predictive utility of the TNSB in the context of indoor tanning.

  19. Portrayal of tanning, clothing fashion and shade use in Australian women's magazines, 1987-2005.

    Science.gov (United States)

    Dixon, Helen; Dobbinson, Suzanne; Wakefield, Melanie; Jamsen, Kris; McLeod, Kim

    2008-10-01

    To examine modelling of outcomes relevant to sun protection in Australian women's magazines, content analysis was performed on 538 spring and summer issues of popular women's magazines from 1987 to 2005. A total of 4949 full-colour images of Caucasian females were coded for depth of tan, extent of clothing cover, use of shade and setting. Logistic regression using robust standard errors to adjust for clustering on magazine was used to assess the relationship between these outcomes and year, setting and model's physical characteristics. Most models portrayed outdoors did not wear hats (89%) and were not in shade (87%). Between 1987 and 2005, the proportion of models depicted wearing hats decreased and the proportion of models portrayed with moderate to dark tans declined and then later increased. Younger women were more likely to be portrayed with a darker tan and more of their body exposed. Models with more susceptible phenotypes (paler hair and eye colour) were less likely to be depicted with a darker tan. Darker tans and poor sun-protective behaviour were most common among models depicted at beaches/pools. Implicit messages about sun protection in popular Australian women's magazines contradict public health messages concerning skin cancer prevention.

  20. A 125 GeV fat Higgs at large tan β

    Science.gov (United States)

    Menon, Arjun; Raj, Nirmal

    2015-12-01

    In this article we study the viability of regions of large tan β within the frame-work of Fat Higgs/λ-SUSY Models. We compute the one-loop effective potential to find the corrections to the Higgs boson mass due to the heavy non-standard Higgs bosons. As the tree level contribution to the Higgs boson mass is suppressed at large tan β, these one-loop corrections are crucial to raising the Higgs boson mass to the measured LHC value. By raising the Higgsino and singlino mass parameters, typical electroweak precision constraints can also be avoided. We illustrate these new regions of Fat Higgs/λ-SUSY parameter space by finding regions of large tan β that are consistent with all experimental constraints including direct dark matter detection experiments, relic density limits and the invisible decay width of the Z boson. We find that there exist regions around λ = 1 .25 , tan β = 50 and a uniform psuedo-scalar 4 TeV ≲ M A ≲ 8 TeV which are consistent will all present phenomenological constraints. In this region the dark matter relic abundance and direct detection limits are satisfied by a lightest neutralino that is mostly bino or singlino. As an interesting aside we also find a region of low tan β and small singlino mass parameter where a well-tempered neutralino avoids all cosmological and direct detection constraints.

  1. UV emissions from artificial tanning devices and their compliance with the European technical standard.

    Science.gov (United States)

    Facta, Stefania; Fusette, Stefania Saudino; Bonino, Alessandro; Anglesio, Laura; d'Amore, Giovanni

    2013-04-01

    Use of ultraviolet radiation-emitting tanning devices has been classified as "carcinogenic to humans" (group 1) by the International Agency for Research on Cancer. Following this classification, the knowledge of typical ultraviolet emission levels from tanning devices can be of interest for evaluating their impact on health. In this work, the results of an extensive measurement campaign on artificial tanning appliances are presented. Ultraviolet emissions from 94 tanning appliances produced by 15 different manufacturers were characterized by onsite spectroradiometric measurements. The measured radiometric quantities were compared with reference values fixed in the European technical standard EN 60335-2-27 "Household and similar electrical appliances-Safety. Part 2: Particular requirements for appliances for skin exposure to ultraviolet and infrared radiation." Measurement results indicate that 88% of the examined appliances had ultraviolet emissions not compliant with the technical standard. Among the considered appliances, tanning devices equipped with low pressure lamps showed higher ultraviolet levels of effective irradiance and less compliance with standard requirements. In particular, UV emissions from 100% of low pressure appliances and from 78% of high pressure appliances exceeded the irradiance limit of 0.3 Wm set by the European technical standard.

  2. Global Maps from Interferometeric TanDEM-X Data: Applications and Potentials

    Science.gov (United States)

    Rizzoli, Paola; Martone, Michele; Brautigam, Benjamin; Zink, Manfred

    2015-05-01

    TanDEM-X is a spaceborne Synthetic Aperture Radar (SAR) mission, whose goal is the generation of a global Digital Elevation Model (DEM) with unprecedented accuracy, by using interferometric SAR (InSAR) techniques (InSAR). TanDEM-X offers a huge global data set of bistatic InSAR acquisitions, each of them supplemented by quick look images of different SAR quantities, such as amplitude, coherence, and DEM. Global quick look mosaics of the interferometric coherence and of the relative height error can be considered for mission performance monitoring and acquisition strategy optimization. The aim of this paper is to present the use of such mosaics within the TanDEM-X mission and to show their potentials for future scientific applications for example in the fields of glaciology and forestry.

  3. Hydrolysis of tanned leather wastes under alkaline, acidic and oxidative conditions

    Directory of Open Access Journals (Sweden)

    Botić Tatjana

    2006-01-01

    Full Text Available Different wastes in large quantities are the outcome or the by-product of processes in the tanning industry. The largest part of solid wastes is collagen based and obtained in the reprocessing steps of tanned and non-tanned products. The quality collagen substance obtained from wastes of the leather industry used as a supporting material in many reprocessing industries. Hydrolysis is the basic step of collagen processing, namely the shortening of its polypeptide chain. The main goal of this investigation was to examine the influence of the following parameters on the extent of collagen hydrolysis: type and quantity of reagent used for hydrolysis temperature of hydrolysis, pH, duration of hydrolysis as well as the dimensions of the "shavings" samples. The change of molar mass during hydrolysis was monitored by UV-spectroscopy. Special attention was paid to the dechroming process of the collagen hydrolysate.

  4. Trends in tans and skin protection in Australian fashion magazines, 1982 through 1991.

    Science.gov (United States)

    Chapman, S; Marks, R; King, M

    1992-12-01

    We rated 3971 photographs of models from midsummer editions of six Australian fashion magazines from 1982-1983 to 1990-1991 for tan on a 9-point scale, for the presence of hats, for sun-protective clothing, and for shade setting. With the exception of the 1990-1991 sample, there was an increasing proportion of light tans over the years. Men were more likely to be deeply tanned than were women. The proportion of models wearing hats followed an increasing linear trend across the five periods. Three quarters of the outdoor photographs were taken in unshaded settings. In unshaded settings, 17% of the women and 5% of the men wore hats.

  5. Using UV photography to reduce use of tanning booths: a test of cognitive mediation.

    Science.gov (United States)

    Gibbons, Frederick X; Gerrard, Meg; Lane, David J; Mahler, Heike I M; Kulik, James A

    2005-07-01

    Two laboratory studies were conducted in which a new type of intervention was used to reduce ultraviolet radiation (UV) exposure from tanning booth use among college students (Time 1 Ns=70 and 134). The intervention uses UV photography to highlight the damage to facial skin caused by previous UV exposure. When the authors controlled for baseline measures of booth use, students in both studies who viewed their UV photographs reported less booth use at a follow-up session 3-4 weeks later than did students not shown a copy of their photograph. Also, in both studies, the decline in use was significantly mediated by a Tanning Cognition Index composed of variables suggested by the prototype-willingness (prototype) model of health risk: tanning attitudes, tanner prototypes, and willingness to engage in risky UV exposure.

  6. STUDY AND PREPARATION ON "PAIN TAN NING" AND ITS CLINICAL APPLICATION AND STUDY ON BRAIN ATLAS

    Institute of Scientific and Technical Information of China (English)

    LIU Mingshun; GU Lanjie; LIU Qingrui

    2004-01-01

    Objective: To observe clinical effect of combined mixture of traditional chineses and western medicine "PIAN TAN NING" in treatment of ischemic cerebrovascular diseases and change of brain atlas. Methods:In 6660 patients with ischemic cerebrovascular disease, the curative effect of "PIAN TAN NING" and brain atlas were observed and other 30 cases were compared with treatment of Dextran. Results:After treatment, patient's clinical symptoms and recovered degree of myodynamia and brain atlas improved significantly. Total effective rate was 96. 7%. But the contral group was 80. 0%. There was a significant difference between them ( p < 0. 05 ). Conclusion: The "PIAN TAN NING" produced a good clinical curative effect in treatment of ischemic cerebrovascular diseases and the side effect was only a few. So it can be applied very well in patients with ischemic cerebrovascular disease. The applied value of brain atlas was very good.

  7. La riqueza y la pobreza de las naciones. ¿Por qué algunas son tan ricas y otras tan pobres?

    Directory of Open Access Journals (Sweden)

    Abel Ignacio López

    2010-08-01

    Full Text Available Landes, David. La riqueza y la pobreza de las naciones. ¿Por qué algunas son tan ricas y otras son tan pobres?, Barcelona, Editorial Crítica, 1999, 604 páginas. ¿Porqué hay naciones pobres y naciones ricas y cuál es la contribución de la historia en la comprensión de esta cuestión? El autor entiende por cultura el espíritu de empresa, el conjunto de valores que guían la conducta de una población, el dominio de la ciencia, la tecnología y el espíritu racional.

  8. La riqueza y la pobreza de las naciones. ¿por qué algunas son tan ricas y otras tan pobres?

    OpenAIRE

    Abel Ignacio López.

    2010-01-01

    Landes, David. La riqueza y la pobreza de las naciones. ¿Por qué algunas son tan ricas y otras son tan pobres?, Barcelona, Editorial Crítica, 1999, 604 páginas. ¿Porqué hay naciones pobres y naciones ricas y cuál es la contribución de la historia en la comprensión de esta cuestión? El autor entiende por cultura el espíritu de empresa, el conjunto de valores que guían la conducta de una población, el dominio de la ciencia, la tecnología y el espíritu racional.

  9. On Amy Tan's The Joy Luck Club from the Perspective of Symbolism

    Institute of Scientific and Technical Information of China (English)

    SHAO Yi-hong

    2016-01-01

    This paper tries to explore the symbolic meanings in Tan's The Joy Luck Club from the following two parts: symbolic meanings of food and symbolic meaning of water. By employing symbolism, Tan extends the traditional Chinese images into cultural ones, in which the conflicts between Chinese and American cultures are symbolized and allegorized, and the novel holds more symbolic meanings with deeper cultural implication. The happy ending of this novel illustrates that the ancient China and the young American eventually reach mutual communication and understanding.

  10. La construcción simbólica de la articulación vida-muerte en colectivos juveniles urbanos: lo subjetivo y las mediaciones del sentido

    OpenAIRE

    Salvador Salazar Gutiérrez

    2015-01-01

    El artículo plantea una estrategia metodológica, que permita colocar el eje de atención en la construcción simbólica que adquiere la vida y muerte en jóvenes integrantes de colectivos, en el contexto actual de la comunidad fronteriza de Ciudad Juárez. La apuesta metodológica parte por lo subjetivo y lo discursivo, teniendo como recurso de mediación la producción de sentido que el actor social genera, siempre situado desde diversas posiciones socioculturales que condicionan sus prácticas y rel...

  11. Relaciones de poder, espacio subjetivo y prácticas de libertad análisis genealógico de un proceso de transformación de género /

    OpenAIRE

    Amigot Leatxe, Patricia

    2005-01-01

    Consultable des del TDX Títol obtingut de la portada digitalitzada La tesis aborda el análisis de la constitución social e histórica del espacio subjetivo, otorgando especial relevancia tanto a la dimensión política, es decir, la producción y regulación de la identidad mediante relaciones de poder, como a los dispositivos de género que configuran sujetos generizados. Entroncada en el ámbito de la Psicología Social Crítica plantea un trabajo, no obstante, transdisciplinar. Partimos de un...

  12. Bem-estar subjetivo e senso de ajustamento psicológico em idosos que sofreram acidente vascular cerebral: uma revisão Subjective well being and perceived psychological adjustment among old people affected by stroke: a review

    Directory of Open Access Journals (Sweden)

    Dóris Firmino Rabelo

    2006-08-01

    Full Text Available Foi feito um levantamento dos estudos brasileiros e estrangeiros publicados entre 1996 e 2005 que relacionavam bem-estar subjetivo, senso de ajustamento psicológico e acidente vascular cerebral, com o objetivo de identificar variáveis mediadoras dessa relação em idosos. Estudos transversais e prospectivos indicaram que os afetados por acidente vascular cerebral apresentam menor bem-estar subjetivo quando comparados com a população geral. Boa capacidade cognitiva, suporte social efetivo, continuidade de uma ocupação produtiva, manutenção da competência em atividades instrumentais de vida diária e humor positivo são fatores que podem melhorar o bem-estar subjetivo e psicológico. Variáveis que podem piorar o bem-estar subjetivo e psicológico são incapacidade funcional, déficits cognitivos, depressão, dificuldade em restabelecer a identidade e restrição à possibilidade de desempenhar atividades e papéis que contribuem para a auto-definição. O conhecimento das implicações psicológicas de sofrer acidente vascular cerebral pode beneficiar pacientes, familiares e profissionais no gerenciamento do evento.We gathered data from Brazilian and foreign studies published between 1996 and 2005 which related subjective well-being, sense of psychological adjustment and stroke. The objective was identifying mediator variables of this relation among old people. Prospective and cross-sectional studies indicated that those affected by stroke showed less subjective well-being than the general population. Good cognitive capacity, effective social support, continuity of a productive occupation, keeping the competence in instrumental activities of daily living and good mood are factors which can affect positively the subjective and psychological well-being. Variables which can affect negatively the subjective and psychological well-being are functional incapacity, cognitive deficits, depression, difficulty in re-establishing the identity and

  13. The Impact of Parental Knowledge and Tanning Attitudes on Sun Protection Practice for Young Children in Germany

    Directory of Open Access Journals (Sweden)

    Olaf Gefeller

    2014-05-01

    Full Text Available Public health campaigns have improved knowledge on UVR-associated skin cancer risk and increased sun protection awareness. However, tanned skin is still a common beauty ideal. The relationship between knowledge, attitudes and protective behavior is not fully understood yet. A population-based survey was thus performed in the district of Erlangen involving 2,619 parents of 3- to 6-year old children. By means of a self-administered standardized questionnaire parental knowledge about risk factors for skin cancer, their attitudes towards tanning and details of protective measures taken for their children were assessed. The study analyzed specifically the impact of parental tanning attitudes on sun-protective measures for their children while controlling for parental knowledge about skin cancer risk factors. While parental knowledge was significantly (inversely associated with agreement to the statement “Tanned skin is healthy skin”, this was not the case for “Tanning makes me look better”. Overall, tanning affirmative attitudes were inversely associated with protective measures taken for the children, whereas parental knowledge had a positive impact on sun protection at the beach only. Multivariable analyses provided evidence for an effect of parental attitude on protective behavior independent of parental knowledge. Tanning attitudes and tanned skin as the misguided ideal of beauty need to be addressed in future public health campaigns to enhance the effectiveness of preventive activities in changing sun protective behavior.

  14. Changes in Sun Tanning Attitudes and Behaviors of U.S. College Students from 1995 to 2005

    Science.gov (United States)

    Pettijohn, Terry F., II; Pettijohn, Terry F.; Geschke, Kaela S.

    2009-01-01

    To investigate changes in U.S. college student sun tanning attitudes and behaviors over the last decade, participants completed sun tanning attitude and behavior surveys in 1995 (n=151) and a different sample of participants completed surveys in 2005 (n=208). Consistent with predictions, results indicated that college students were more likely to…

  15. Arc Tan- Exponential Type Distribution Induced By Stereographic Projection / Bilinear Transformation On Modified Wrapped Exponential Distribution

    Directory of Open Access Journals (Sweden)

    Phani Y.

    2013-05-01

    Full Text Available In this paper we make an attempt to construct a new three parameter linear model, we call this new model as Arc Tan-Exponential Type distribution, by applying Stereographic Projection or equivalently Bilinear transformation on Wrapped Exponential distribution, Probability density and cumulative distribution functions of this new model are presented and their graphs are plotted for various values of parameters.

  16. 78 FR 27117 - General and Plastic Surgery Devices: Reclassification of Ultraviolet Lamps for Tanning...

    Science.gov (United States)

    2013-05-09

    ... submitting comments. Written Submissions Submit written submissions in the following ways: Mail/Hand delivery... Disinfection: This is a concern for any reusable device. Sunlamp products in an indoor tanning facility may be shared by dozens of users in a single day. Cleaning and disinfection practices, as well as training...

  17. TanDEM-X the Earth surface observation project from space level - basis and mission status

    Directory of Open Access Journals (Sweden)

    Jerzy Wiśniowski

    2015-03-01

    Full Text Available TanDEM-X is DLR (Deutsches Zentrum für Luft- und Raumfahrt the Earth surface observation project using high-resolution SAR interferometry. It opens a new era in space borne radar remote sensing. The system is based on two satellites: TerraSAR-X (TSX and TanDEM-X (TDX flying on the very close, strictly controlled orbits. This paper gives an overview of the radar technology and overview of the TanDEM-X mission concept which is based on several innovative technologies. The primary objective of the mission is to deliver a global digital elevation model (DEM with an unprecedented accuracy, which is equal to or surpass the HRTI-3 specifications (12 m posting, relative height accuracy ±2 m for slope < 20% and ±4 m for slope > 20% [8]. Beyond that, TanDEM-X provides a highly reconfigurable platform for the demonstration of new radar imaging techniques and applications.[b]Keywords[/b]: remote sensing, Bistatic SAR, digital elevation model (DEM, Helix formation, SAR interferomery, HRTI-3, synchronization

  18. The TanDEM-X Digital Elevation Model and Terrestrial Impact Craters

    OpenAIRE

    Gottwald, Manfred; Fritz, Thomas; Breit, Helko; Schättler, Birgit; Harris, Alan

    2014-01-01

    We use the global digital elevation model (DEM) generated in the TanDEM-X mission for mapping further confirmed terrestrial impact craters. This DEM provides the most accurate spaceborne global elevation data. It permits detailed studies of the topography of the sites of simple and complex structures with unprecedented accuracy.

  19. Using Shaun Tan's Work to Foster Multiliteracies in 21st-Century Classrooms

    Science.gov (United States)

    Dallacqua, Ashley K.; Kersten, Sara; Rhoades, Mindi

    2015-01-01

    This paper explores work in multimodality and design as it relates to 21st century multiliteracies. After outlining the concept of a multiliteracies pedagogy, this paper describes multimodality and multimodal texts. Moving from the theoretical to the practical, this paper primarily explores selected multimodal works of Shaun Tan and the…

  20. Determination of total chromium in tanned leather samples used in car industry.

    Science.gov (United States)

    Zeiner, Michaela; Rezić, Iva; Ujević, Darko; Steffan, Ilse

    2011-03-01

    Despite the high competition of synthetic fibers leather is nowadays still widely used for many applications. In order to ensure a sufficient stability of the skin matrix against many factors, such as microbial degradation, heat and sweat, a tanning process is indispensable. Using chromium (III) for this purpose offers a multitude of advantages, thus this way of tanning is widely applied. During the use of chromium tanned leather as clothing material as well as for decoration/covering purposes, chromium is extracted from the leather and may then cause nocuous effects to human skin, e.g. allergic reactions. Thus the knowledge of the total chromium content of leather samples expected to come into prolonged touch with human skin is very important. In car industry leather is used as cover for seats, steering wheel and gearshift lever The chromium contents often chromium tanned leather samples used in car industry were determined. First all samples were dried at 65 degrees C overnight and then cut in small pieces using a ceramic knife, weighed and analyzed by inductively coupled plasma--optical emission spectrometry (ICP-OES) after acidic microwave assisted digestion. The total chromium amounts found were in the range from 19 mg/g up to 32 mg/g. The extraction yield of chromium from leather samples in sweat is approximately 2-7%. Thus especially during long journeys in summer chromium can be extracted in amounts which may cause nocuous effects for example on the palm of the hands or on the back.

  1. Portrayal of Tanning, Clothing Fashion and Shade Use in Australian Women's Magazines, 1987-2005

    Science.gov (United States)

    Dixon, Helen; Dobbinson, Suzanne; Wakefield, Melanie; Jamsen, Kris; McLeod, Kim

    2008-01-01

    To examine modelling of outcomes relevant to sun protection in Australian women's magazines, content analysis was performed on 538 spring and summer issues of popular women's magazines from 1987 to 2005. A total of 4949 full-colour images of Caucasian females were coded for depth of tan, extent of clothing cover, use of shade and setting. Logistic…

  2. In vitro/in vivo and analytical evaluation of sunless tanning formulations containing different rheology modifiers.

    Science.gov (United States)

    Dueva-Koganov, Olga V; Mandalia, Yamini; Brito, Juan; Rocafort, Colleen; Orofino, Steven; Vazquez, Gustavo

    2010-01-01

    In vitro data suggest that different in vivo performances are expected for two dihydroxyacetone (DHA)-containing formulations with similar concentrations of DHA and excipients but different commercially available rheology modifiers: one with a cationic polymer-based rheology modifier (blend) [dimethylacrylamide/ethyltrimonium chloride methacrylate copolymer (and) propylene glycol dicaprylate/dicaprate (and) PPG-1 trideceth-6 (and) C10-11 isoparaffin]; and the other with a polyacrylamide-based rheology modifier (blend) [polyacrylamide (and) C13-14 isoparaffin (and) laureth-7]. Both rheology modifiers (blends) contained comparable levels of polymers and were used at 3% w/w (as supplied). Differences in color development were illustrated in vitro with respect to the yellow/red and lightness/chroma parameters, which were confirmed in the followup in vivo studies. The test article with the cationic polymer-based rheology modifier produced a more natural sunless tan, comparable to a desirable sun-induced tan, for all panelists, one that was more uniform and lasted longer compared with the sunless tan generated by the test article with the polyacrylamide-based rheology modifier. A method for HPLC analysis of DHA in sunless tanning formulations was established and utilized to confirm concentrations of DHA in test articles.

  3. Structural, electronic and optical properties of hexagonal TaN compound

    Science.gov (United States)

    Chen, Zhongjun; Yan, Jungan; Kuang, Zhong; Chen, Taihong; Li, Dehua

    2016-01-01

    Structural and electronic properties of hexagonal Tantalum nitride (TaN) in CoSn and WC structures are studied using the first-principle calculations. Lattice constants and electronic band structures are in an excellent agreement with the available experimental and other theoretical values. TaN in both structures studied has a metallic nature and a strong hybridization of Ta 5d and N 2p are found from the spin density of states (DOS). Meanwhile, our LSDA+U calculations predicted a strong ferromagnetic state for CoSn-type structure and an obvious paramagnetic nature for WC-type structure. No phase transition are observed within cubic and hexagonal CoSn and WC structures under high pressures. Our results show WC-type TaN is the calculated ground-state structure among the three crystallographic structures studied under 120 GPa. Optical properties show that TaN in CoSn-type structure is a better dielectric material.

  4. Inverse gene-for-gene interactions contribute additively to tan spot susceptibility in wheat

    Science.gov (United States)

    Tan spot of wheat, caused by Pyrenophora tritici-repentis, is an important disease in almost all wheat-growing areas of the world. The disease system is known to involve at least three fungal-produced necrotrophic effectors (NEs) that interact with corresponding host sensitivity (S) genes in an inv...

  5. Ever Searching for Better Living——Tan Sri Lee Kim Yew and his CHHB Group

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ Visionary Entrepreneur There have been many spectacular feats and achievements by Malaysians in the last two decade,but none as uneXpected and hard-fought as the rise of Tan Sri Lee Kim Yew,Group Managing Director and Founder of CHHB.

  6. The Power of Interconnectivity: Tan Sitong's Invention of Historical Agency in Late Qing China

    Directory of Open Access Journals (Sweden)

    Hung-yok Ip

    2015-02-01

    Full Text Available To explore how Chinese Buddhists acted as trailblazers of Engaged Buddhism, I shall analyze a late nineteenth-century thinker, Tan Sitong 譚嗣同 (1865–1898. The focus of my analysis is his masterpiece, Renxue 仁學. From his position of Buddhist eclecticism, Tan discoursed at length on non-differentiation as the truth of the universe to reflect on the creative disposition of human agency. He described in Renxue how this disposition would contribute to the agendas defining Chinese modernity. In addition, discussing the meanings of non-differentiation, Tan also generalized about the nature of the human agency he attempted to advocate: while he perceived the human agency blessed with a non-differentiating mindset as an omnipotent history-making force, he also argued that it did not confer upon its owner the status of world savior. In fact, in his view, the efficacy of a non-differentiating mind was determined by the world it aimed to help. Tan's signature piece, I argue, provides a lens through which we can observe modern Chinese Buddhism's role as an important part of the global formation of Engaged Buddhism.

  7. Supergravity Solutions in the Low-$\\tan\\beta$ $ \\lambda_t$ Fixed Point Region

    CERN Document Server

    Barger, V; Ohmann, P

    1994-01-01

    There has been much discussion in the literature about applying the radiative electroweak symmetry breaking (EWSB) requirement to GUT models with supergravity. We motivate and discuss the application of the EWSB requirement to the low $\\tan\\beta$ fixed-point region and describe the solutions we find.

  8. A 125 GeV Fat Higgs at large $\\tan \\beta$

    CERN Document Server

    Menon, Arjun

    2015-01-01

    We study the viability of regions of large $\\tan \\beta$ within the framework of Fat Higgs/$\\lambda$-SUSY Models. We compute the one-loop effective potential to find the corrections to the Higgs boson mass due to the heavy non-standard Higgs bosons. As the tree level contribution to the Higgs boson mass is suppressed at large $\\tan \\beta$, these one-loop corrections are crucial to raising the Higgs boson mass to the measured LHC value. By raising the Higgsino and singlino mass parameters, typical electroweak precision constraints can also be avoided. We illustrate these new regions of Fat Higgs/$\\lambda$-SUSY parameter space by finding regions of large $\\tan \\beta$ that are consistent with all experimental constraints including direct dark matter detection experiments, relic density limits and the invisible decay width of the $Z$ boson. We find that there exist regions around $\\lambda = 1.25, \\tan \\beta = 50$ and a uniform psuedo-scalar $4~{\\rm TeV} \\lsim M_A \\lsim 8$~TeV which are consistent will all present ...

  9. Accumulation of Cr by plants in tanning sludge storage sites: opportunities for contamination bioindication and phytoremediation

    Science.gov (United States)

    The lack of appropriate disposal strategies of tanning sludge (e.g., uncontrolled landfills and disposing sludge to open areas) has led to severe Cr pollution in waters and soils in many developing countries. Excessive Cr can be highly toxic to many living organisms and may damage the ecosystem. In ...

  10. Chrome Tanning Leather of Giant Sea Perch Combined with Seed Extract Areca Nut on the Physical Characteristics

    Directory of Open Access Journals (Sweden)

    Bustami - Ibrahim

    2014-11-01

    Full Text Available Tanning is the process of converting raw hide protein to leather, which are stable, not easily decompose, and is suitable for a variety of uses. The use of vegetable based tanning materials in the leather tanning process has not been carried out. Vegetable based materials that were used are betel nuts. This plant contains tannin which is the main agent in the process of leather tanning. The aim of this study was to determine the physical characteristics of snapper leather treated with betel nut extract. Soxhlet extracting method with methanol as a solvent were used to obtain tannin from betel nuts. Tanned Snapper Leather were analyzed for physical quality, elongation strength, tensile strength, tear strength, and sewing strength. The result showed that methanol extracted betel nut with 10% concentration gives the optimum physical characteristics.Keywords: areca nut, chrome, snapper, snapper

  11. Biointervention makes leather processing greener: an integrated cleansing and tanning system.

    Science.gov (United States)

    Thanikaivelan, Palanisamy; Rao, Jonnalagadda Raghava; Nair, Balachandran Unni; Ramasami, Thirumalachari

    2003-06-01

    The do-undo methods adopted in conventional leather processing generate huge amounts of pollutants. In other words, conventional methods employed in leather processing subject the skin/hide to wide variations in pH. Pretanning and tanning processes alone contribute more than 90% of the total pollution from leather processing. Included in this is a great deal of solid wastes such as lime and chrome sludge. In the approach described here, the hair and flesh removal as well as fiber opening have been achieved using biocatalysts at pH 8.0 for cow hides. This was followed by a pickle-free chrome tanning, which does not require a basification step. Hence, this tanning technique involves primarily three steps, namely, dehairing, fiber opening, and tanning. It has been found that the extent of hair removal, opening up of fiber bundles, and penetration and distribution of chromium are comparable to that produced by traditional methods. This has been substantiated through scanning electron microscopic, stratigraphic chrome distribution analysis, and softness measurements. Performance of the leathers is shown to be on par with conventionally processed leathers through physical and hand evaluation. Importantly, softness of the leathers is numerically proven to be comparable with that of control. The process also demonstrates reduction in chemical oxygen demand load by 80%, total solids load by 85%, and chromium load by 80% as compared to the conventional process, thereby leading toward zero discharge. The input-output audit shows that the biocatalytic three-step tanning process employs a very low amount of chemicals, thereby reducing the discharge by 90% as compared to the conventional multistep processing. Furthermore, it is also demonstrated that the process is technoeconomically viable.

  12. Fatores associados ao bem-estar subjetivo de crianças e adolescentes em situação de rua = Factors associated with the subjective well-being of children and adolescents in street situation = Factores asociados con el bienestar subjetivo de los niños y adolescentes en situación de la calle

    Directory of Open Access Journals (Sweden)

    Lima, Rebeca Fernandes Ferreira

    2016-01-01

    Full Text Available Buscou-se caracterizar o bem-estar subjetivo de crianças e adolescentes em situação de rua de três capitais brasileiras: Fortaleza, Porto Alegre e Salvador, verificando os fatores a ele associados (idade, sexo, eventos estressores e rede de apoio. Participaram 111 jovens (M=14,18 anos; DP=2,4, sendo a maioria (n=90; 81,1% meninos. Utilizou-se o Inventário de Eventos Estressores, Mapa dos Cinco Campos, Escala de Satisfação de Vida e Escalas de Afeto Positivo e Negativo. Os participantes avaliaram positivamente a satisfação de vida e relataram mais afetos positivos que negativos, embora tenham vivenciado eventos estressores. Satisfação de vida associou-se negativamente com idade e afetos negativos associaram-se positivamente ao impacto dos eventos estressores e negativamente ao fator de proximidade da rede de apoio. Discute-se que as adversidades não afetaram a expressão de afetos positivos e satisfação de vida, bem como a importância da rede de apoio para promoção de bem-estar

  13. Anatomie d’une marge passive hybride. Marge Ifni/Tan-Tan (sud du Maroc au Mesozoique: apports des donnees geophysiques

    Directory of Open Access Journals (Sweden)

    Nahim, M.

    2004-12-01

    Full Text Available The formation of the Ifninan-Tan margin started during the Triassic-Liassic extensional event, and continued during the Jurassic to present opening of the central Atlantic. This margin is located to the S of the South-Atlas lineament, between two contrasted geotectonic scenarios: the N, where the effect of the atlasic and alpine tectonics is spectacular, and the S, where this does not occur. The Ifninan-Tan margin is characterized by a series of post-rift deposits only slightly deformed and disturbed by salt diapirism towards the ocean. These series completely mask the structures of the rift, and they have been studied with the abundant information gathered by the oil exploration campaigns (seismic reflection and drilling, and with the analysis of gravimetrical and magnetic field-potential data. The study of the rift structures (both inland and offshore, highlights the difference between two sectors of the platform: (i a NE sector, where the upper part of the pre-rift substratum is not very deep, and where the dominating structural style is constituted by half-grabens and horsts; and, (ii a SW sector where grabens dominate. This paper shows that two structural styles and modes of extension can coexist on the same passive margin, one hundred kilometers apart. The differences described here are imposed by the structures inherited from the Hercynian evolution.La constitution de la marge Ifni/Tan-Tan a commencé lors de la distension triasico-liasique et s’est poursuivie pendant l’ouverture de l’Atlantique central, qui a eu lieu au Jurassique, jusqu’a l’actuel. Située au Sud du linéament sud atlasique entre deux domaines géotectoniques variés: un domaine au Nord ou l’effet de la tectonique atlasique et alpine est très spectaculaire et un domaine au Sud ou cet effet est très discret, la marge Ifni/Tan-Tan est caractérisée par des séries post-rift peu déformées et perturbées, en mer, par des montées diapiriques de sel. Ces s

  14. Fazendo algo a mais: a percepção do aluno de enfermagem sobre o cuidado realizado no contexto de família Making something more: a nursing students experience nursing care in the family context

    Directory of Open Access Journals (Sweden)

    Fabiana Neman

    1999-06-01

    Full Text Available RESUMO O presente estudo teve como objetivo desvelar a percepção do aluno de enfermagem sobre o cuidado realizado no contexto de família. Para tal utilizou-se entrevistas analisadas com a perspectiva fenomenológica, que permitiram identificar 4 temas nos discursos, os quais revelaram existir uma dimensão relacional entre a situação motivadora, o sentimento emergido, a ação desencadeada e a reflexão elaborada sobre o processo. FAZENDO ALGO A MAIS configurou-se como o fenômeno deste estudo e consolidou-se assim, porque o aluno frente a situação motivadora é tocado por ela, se permitindo ver para e além do "ser-doente", sendo motivado a acolher o paciente e sua família. O aluno entende que ao assistir nesse contexto está fazendo algo além do habitual, compreendendo o "ser-doente" como um ser saudável, membro de uma família que no momento encontra-se doente. O aluno termina por refletir a demanda do papel profissional, principalmente a dimensão emocional do "ser-enfermeiro" e repensa toda a interação existente no cuidar em enfermagem.ABSTRACT This study sough to understand how nursing students experience nursing care in the family context. Phenomenology was used to interpret data colleted using interviews with the students. Four themes were uncovered and MAKING SOMETHING MORE emerged as the phenomenon who integrated the motivacional situation perceived by the students, their feelings, their actions, and their reflections about the lived experience.

  15. Large muon (g-2) from TeV-scale MSSM with infinite tan\\beta

    CERN Document Server

    Bach, Markus; Stöckinger, Dominik; Stöckinger-Kim, Hyejung

    2015-01-01

    The muon anomalous magnetic moment $a_\\mu$ is studied in the infinite $\\tan\\beta$ limit of the MSSM. Since the muon mass arises completely from loop effects, large corrections to $a_\\mu$ are expected in comparison to the usual case with moderately high $\\tan\\beta$. Due to the qualitatively different parameter dependence, the gap between the experimental value and the Standard Model prediction can be filled only in parameter volumes in which a mass hierarchy suppresses the chargino loop in favour of the neutralino contribution. Two such possibilities are found to have either large Higgsino mass or large muon sneutrino mass. Supersymmetric particles even at the TeV scale can lead to the best fit of $a_\\mu$.

  16. Tanning elixir万能的皮肤自晒黑护肤品

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    来自Carita公司的护肤新品包括名为ProgressifAnti-Age Solaire Self-Tanning Tinted Cream for Face的抗衰老自晒黑护肤膏霜.其同时具有SPF8的紫外线防护指数。另一个新产品是ProgessilfAnti-Age Solaire Self-Tanning and Contouring Milk.是一个用于腿部和全身肌肤的,具有SPF8防晒指数的自晒黑护肤奶液.宣称也具有抗衰老功效。

  17. TaN molecule as a candidate to search for New physics

    CERN Document Server

    Skripnikov, L V; Mosyagin, N S; Titov, A V; Flambaum, V V

    2015-01-01

    TaN molecule is probably the best candidate to search for T,P-violating nuclear magnetic quadrupole moment (MQM), it also looks promissing to search for other T,P-odd effects. We report results of coupled-cluster calculations of T,P-odd effects in TaN produced by the Ta nucleus MQM, electron electric dipole moment (EDM), scalar$-$pseudoscalar nucleus$-$electron interactions, also of the molecule-axis hyperfine structure constant and dipole moment. Nuclear calculations of $^{181}$Ta MQM are performed to express the T,P-odd effect in terms of the strength constants of T,P-odd nuclear forces, proton and neutron EDM, QCD parameter $\\theta$ and quark chromo-EDM.

  18. GPS-Based Precision Baseline Reconstruction for the TanDEM-X SAR-Formation

    Science.gov (United States)

    Montenbruck, O.; vanBarneveld, P. W. L.; Yoon, Y.; Visser, P. N. A. M.

    2007-01-01

    The TanDEM-X formation employs two separate spacecraft to collect interferometric Synthetic Aperture Radar (SAR) measurements over baselines of about 1 km. These will allow the generation ofa global Digital Elevation Model (DEM) with an relative vertical accuracy of 2-4 m and a 10 m ground resolution. As part of the ground processing, the separation of the SAR antennas at the time of each data take must be reconstructed with a 1 mm accuracy using measurements from two geodetic grade GPS receivers. The paper discusses the TanDEM-X mission as well as the methods employed for determining the interferometric baseline with utmost precision. Measurements collected during the close fly-by of the two GRACE satellites serve as a reference case to illustrate the processing concept, expected accuracy and quality control strategies.

  19. Point defects stabilise cubic Mo-N and Ta-N

    Science.gov (United States)

    Koutná, Nikola; Holec, David; Svoboda, Ondřej; Klimashin, Fedor F.; Mayrhofer, Paul H.

    2016-09-01

    We employ ab initio calculations to investigate energetics of point defects in metastable rocksalt cubic Ta-N and Mo-N. Our results reveal a strong tendency to off-stoichiometry, i.e. defected structures are surprisingly predicted to be more stable than perfect ones with 1:1 metal-to-nitrogen stoichiometry. Despite the similarity of Ta-N and Mo-N systems in exhibiting this unusual behaviour, we also point out their crucial differences. While Ta-N significantly favours metal vacancies, Mo-N exhibits similar energies of formation regardless of the vacancy type (V Mo, V N) as long as their concentration is below ≈ 15~\\text{at}. % . The overall lowest energies of formation were obtained for \\text{T}{{\\text{a}}0.78}\\text{N} and \\text{M}{{\\text{o}}0.91}\\text{N} , which are hence predicted to be the most stable compositions. To account for various experimental conditions during synthesis, we further evaluated the phase stability as a function of chemical potential of individual species. The proposed phase diagrams reveal four stable compositions, \\text{M}{{\\text{o}}0.84}\\text{N} , \\text{M}{{\\text{o}}0.91}\\text{N} , \\text{Mo}{{\\text{N}}0.69} and \\text{Mo}{{\\text{N}}0.44} , in the case of Mo-N and nine stable compositions in the case of Ta-N indicating the important role of metal under-stoichiometry, since \\text{T}{{\\text{a}}0.75}\\text{N} and \\text{T}{{\\text{a}}0.78}\\text{N} significantly dominate the diagram. This is particularly important for understanding and designing experiments using non-equilibrium deposition techniques. Finally, we discuss the role of defect ordering and estimate a cubic lattice parameter as a function of defect contents and put them in the context of existing literature theoretical and experimental data.

  20. On some spectral properties of TanDEM-X interferograms over forested areas

    OpenAIRE

    De Zan, Francesco; Krieger, Gerhard; López-Dekker, Paco

    2013-01-01

    This letter reports about some obervations over rainforest (in Brazil and Indonesia), where the spectra of TanDEM-X interferograms show distinct features, almost a signature, which is explained and modelled in terms of the scattering properties. Supported by comparisons with simulations, the observations exclude any homogeneous, horizontally-layered forest; instead, they are compatible with a model with point scatterers clustered in clouds. Such a model, with high extinction and large gaps...

  1. Observations and discussions of TanDEM-X interferogram spectra over rain forest

    OpenAIRE

    De Zan, Francesco; Krieger, Gerhard; López-Dekker, Paco

    2012-01-01

    This paper reports about some obervations over rainforest (in Brazil and Indonesia), where the spectra of TanDEM-X interferograms show distinct features, almost a signature, which is explained and modelled in terms of the scattering properties. Thanks to the comparison with simulations, the observations exclude a homogeneous, horizontally-layered forest; instead, they are compatible with a model with point scatterers clustered in clouds. Such a model, with high extinction and large gaps th...

  2. TARA (Caesalpinia spinosa): the sustainable source of tannins for innovative tanning processes

    OpenAIRE

    Castell Escuer, Joan Carles

    2012-01-01

    This thesis considers the fruit of the tara tree (Caesalpinia spinosa) as a sustainable source for tanning agents and proposes alternatives to the commercial mineral salts and vegetable extracts to comply with an increasing demand that concerns lower carbon footprint and health safety. Taxonomy of the tree is described and the substances contained in the fruit are chemically characterized in order to justify that tara farm forestry is economically viable and to secure a potential worth. The v...

  3. CP violation in B --> phi K_S decay at large tan(beta)

    OpenAIRE

    Baek, Seungwon

    2003-01-01

    We consider the chargino contribution to the CP violation in B \\to \\phi K_S decay in the minimal supersymmetric standard model at large \\tan\\beta. It is shown that the Wilson coefficient C_{8g} of the chromomagnetic penguin operator can be significantly enhanced by the chargino-mediated diagrams while satisfying other direct/indirect experimental constraints. The enhanced C_{8g} allows large deviation in the CP asymmetry from the standard model prediction.

  4. CP violation in $B \\to \\phi K_S$ decay at large $\\tan\\beta$

    OpenAIRE

    Baek, Seungwon

    2003-01-01

    We consider the chargino contribution to the CP violation in $B \\to \\phi K_S$ decay in the minimal supersymmetric standard model at large $\\tan\\be$. It is shown that the Wilson coefficient $C_{8g}$ of the chromomagnetic penguin operator can be significantly enhanced by the chargino-mediated diagrams while satisfying other direct/indirect experimental constraints. The enhanced $C_{8g}$ allows large deviation in the CP asymmetry from the standard model prediction, especially it can explain the ...

  5. Tropical-Forest Biomass Dynamics from X-Band, TanDEM-X DATA

    Science.gov (United States)

    Treuhaft, R. N.; Neumann, M.; Keller, M. M.; Goncalves, F. G.; Santos, J. R.

    2015-12-01

    The measurement of the change in above ground biomass (AGB) is key for understanding the carbon sink/source nature of tropical forests. Interferometric X-band radar from the only orbiting interferometer, TanDEM-X, shows sensitivity to standing biomass up to at least 300 Mg/ha. This sensitivity may be due in part to the propagation of the shorter X-band wavelength (0.031 m) through holes in the canopy. This talk focuses on estimating the change in AGB over time. Interferometric baselines from TanDEM-X have been obtained in Tapajós National Forest in the Brazilian Amazon over a 4-year period, from 2011 to 2015. Lidar measurements were also acquired during this period. Field measurements of height, height-to-base-of-crown, species, diameter, and position were acquired in 2010, 2013, and 2015. We show interferometric phase height changes, and suggest how these phase height changes are related to biomass change. First we show height changes between baselines separated by one month, over which we expect no change in AGB, to evaluate precision. We find an RMS of 3 m, due to actual change. Most stands show changes in interferometric phase height consistent with regrowth (~10 Mg/ha/yr), and several stands show abrupt, large changes in phase height (>10 m) due to logging and natural disturbance. At the end of 2015, we will acquire more TanDEM-X data over Tapajos, including an area subjected to selective logging. We are doing "before" (March 2015) and "after" (October 2015) fieldwork to be able to understand the signature of change due to selective logging in TanDEM-X interferometric data.

  6. High School Students’ Use of Sunscreen and Tanning Beds

    Centers for Disease Control (CDC) Podcasts

    2014-08-20

    This podcast is an interview with Corey Basch, EdD, MPH, assistant professor in the Department of Public Health at William Paterson University. Dr. Basch discusses her study on high school students’ use of sunscreen and tanning beds between 2001 and 2011.  Created: 8/20/2014 by Preventing Chronic Disease (PCD), National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP).   Date Released: 8/20/2014.

  7. Dialética do modo de vida de portadores de hipertensão arterial: o objetivo e subjetivo Dialéctica del modo de vida de portadores de hipertensión arterial: el objetivo y subjetivo Dialectics of hypertensive patients' way of life: between the objective and the subjective

    Directory of Open Access Journals (Sweden)

    Leise Rodrigues Carrijo Machado

    2007-12-01

    Full Text Available Procurou-se compreender o modo de vida de portadores de hipertensão arterial assistidos por uma unidade do Programa de Saúde da Família, sob o referencial teórico-metodológico do materialismo histórico e dialético. As onze entrevistas realizadas com indivíduos hipertensos foram submetidas ao procedimento de análise de discurso, revelando temas da realidade social da vida cotidiana. As categorias empíricas identificadas crenças, sentimentos, além do individual, controle e descontrole pressórico e causas da hipertensão arterial, foram analisadas diante de categorias dialéticas o subjetivo e o objetivo e processo saúde-doença-cuidado. A vida cotidiana revelou contradições quanto ao tratamento necessário e a doença que não é assumida como doença; necessidade de modificações em hábitos e valores humanos que se contrapõem a essas modificações; impossibilidade concreta de controle dos níveis pressóricos decorrentes de situações do modo de vida como o nervosismo e problemas familiares. A Enfermagem precisa rever o modo de cuidado da pessoa com adoecimento crônico.Se buscó comprender el modo de vida de portadores de hipertensión arterial asistidos por una unidad del Programa de la Salud de la Familia, sobre el referencial teórico-metodológico del materialismo histórico y dialéctico. Las once entrevistas realizadas con individuos hipertensos fueron sometidas al procedimiento de análisis de discurso, rebelando temas de la realidad social de la vida cotidiana. Las categorías empíricas identificadas creencias, sentimientos, además del individual, control y descontrol tensorial y causas de la hipertensión arterial, fueron analizadas delante de categorías dialécticas el subjetivo y el objetivo y proceso salud-enfermedad-cuidado. La vida cotidiana ha rebelado contradicciones cuanto al tratamiento necesario y a la enfermedad que no es asumida como enfermedad; necesidad de modificaciones en hábitos y valores

  8. POTENTIAL OF VEGETABLE TANNING MATERIALS AND BASIC ALUMINUM SULPHATE IN SUDANESE LEATHER INDUSTRY

    Directory of Open Access Journals (Sweden)

    MAHDI, HAROUN

    2009-03-01

    Full Text Available Ecological pressures on chromium have now forced the leather industry to look for possible alternatives. A vegetable- aluminum combination tannage has been studied, with special attention being given to intended final product. Aluminum is mineral tanning agents that are widely used to stabilize collagens in the leather industry. In this study, the crosslinking of vegetable and aluminum, with collagens, have been explored. This kind of chrome free tannage give us leathers with shrinkage temperature around 125oC, elongation at break 65.6%, tensile strength 38 N/mm2, and tear strength 98 N/mm. The chemical properties of the combination tanned leathers are found to be quite normal. Among the combination system evaluated, a vegetable pretannage followed by retannage with basic aluminum sulphate was found to produce stronger leather with the durable characteristics. In contrast, pre-tanning with aluminum possibly tightens the collagen fiber network, preventing high molecular weight vegetable tannins from interacting with collagen fibres. Optimal results were obtained when 10% (w/w vegetable tannins (garad and 2% Aluminum sulphate was used.

  9. An assessment of TanDEM-X GlobalDEM over rural and urban areas

    Science.gov (United States)

    Koudogbo, Fifamè N.; Duro, Javier; Huber, Martin; Rudari, Roberto; Eddy, Andrew; Lucas, Richard

    2014-10-01

    Digital Elevation Model (DEM) is a key input for the development of risk management systems. Main limitation of the current available DEM is the low level of resolution. DEMs such as STRM 90m or ASTER are globally available free of charge, but offer limited use, for example, to flood modelers in most geographic areas. TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement), the first bistatic SAR can fulfil this gap. The mission objective is the generation of a consistent global digital elevation model with an unprecedented accuracy according to the HRTI-3 (High Resolution Terrain Information) specifications. The mission opens a new era in risk assessment. In the framework of ALTAMIRA INFORMATION research activities, the DIAPASON (Differential Interferometric Automated Process Applied to Survey Of Nature) processing chain has been successfully adapted to TanDEM-X CoSSC (Coregistered Slant Range Single Look Complex) data processing. In this study the capability of CoSSC data for DEM generation is investigated. Within the on-going FP7 RASOR project (Rapid Analysis and Spatialisation and Of Risk), the generated DEM are compared with Intermediate DEM derived from the TanDEM-X first global coverage. The results are presented and discussed.

  10. Green route for the utilization of chrome shavings (chromium-containing solid waste) in tanning industry.

    Science.gov (United States)

    Rao, Jonnalagadda Raghava; Thanikaivelan, Palanisamy; Sreeram, Kalarical Janardhanan; Nair, Balachandran Unni

    2002-03-15

    Chromium-containing wastes from various industrial sectors are under critical review. Leather processing is one such industrial activity that generates chromium-bearing wastes in different forms. One of them is chrome shavings, and this contributes to an extent of 10% of the quantum of raw skins/hides processed, amounting to 0.8 million ton globally. In this study, the high protein content of chrome shavings has been utilized for reduction of chromium(VI) in the preparation of chrome tanning agent. This approach has been exploited for the development of two products: one with chrome shavings alone as reducing agent and the other with equal proportion of chrome shavings and molasses. The developed products exhibit more masking due to the formation of intermediate organic oligopeptides. This has been corroborated through the spectral, hydrolysis, and species-wise distribution studies. The formation of these organic masking agents helps in chrome tanning by shifting the precipitation point of chromium to relatively higher pH levels. Hence, the developed products find use as chrome tanning agents for leather processing, thus providing a means for better utilization of chrome shaving wastes.

  11. Recycling Technology for Waste Tanning Liquors%鞣制废液的循环技术

    Institute of Scientific and Technical Information of China (English)

    P.Mokrejs; D.; Janacova; M.; Mladek; K.; Kolornaznik; F.; Langmaier; V.; Vasek

    2007-01-01

    Tannery belongs to typical industrial branches which during the technological process produce considerable quantities of liquid and solid wastes contributing to polluting the environment. The presented work describes dechromation of waste tanning liquor utilising chrome sludge produced through enzymatic hydrolysis of chrome-tanned leather wastes. The principle of dechromation consists in sorption of chrome from waste liquor after tanning to chrome sludge. Recycling technology is characterised by an almost 99% efficiency, simplicity and low investment requirements.%制革属于典型的工业分支,制革工业中会产生大量的污染环境的废液和废固.该论文利用铬鞣革废物的酶法水解用铬污泥除去鞣制废液中的铬.除去铬的原理是鞣后的铬污泥从废液中吸收铬.该循环技术回收率可达99%,操作简单、成本低廉.

  12. Tropical forest heterogeneity from TanDEM-X InSAR and lidar observations in Indonesia

    Science.gov (United States)

    De Grandi, Elsa Carla; Mitchard, Edward

    2016-10-01

    Fires exacerbated during El Niño Southern Oscillation are a serious threat in Indonesia leading to the destruction and degradation of tropical forests and emissions of CO2 in the atmosphere. Forest structural changes which occurred due to the 1997-1998 El Niño Southern Oscillation in the Sungai Wain Protection Forest (East Kalimantan, Indonesia), a previously intact forest reserve have led to the development of a range of landcover from secondary forest to areas dominated by grassland. These structural differences can be appreciated over large areas by remote sensing instruments such as TanDEM-X and LiDAR that provide information that are sensitive to vegetation vertical and horizontal structure. One-point statistics of TanDEM-X coherence (mean and CV) and LiDAR CHM (mean, CV) and derived metrics such as vegetation volume and canopy cover were tested for the discrimination between 4 landcover classes. Jeffries-Matusita (JM) separability was high between forest classes (primary or secondary forest) and non-forest (grassland) while, primary and secondary forest were not separable. The study tests the potential and the importance of potential of TanDEM-X coherence and LiDAR observations to characterize structural heterogeneity based on one-point statistics in tropical forest but requires improved characterization using two-point statistical measures.

  13. Characterization of Pyrenophora tritici-repentis (Tan Spot of Wheat) Races in Baltic States and Romania

    Science.gov (United States)

    Abdullah, Sidrat; Sehgal, Sunish Kumar; Ali, Shaukat; Liatukas, Zilvinas; Ittu, Mariana; Kaur, Navjot

    2017-01-01

    Tan spot, caused by the fungus Pyrenophora triticirepentis, is economically important foliar disease in Latvia, Lithuania, and Romania; however, race structure from Baltic States and Romania is not known. In this study, we performed genotypic and phenotypic race characterization of a large collection of P. triticirepentis isolates from these countries to determine race structure and utilize this information for better disease management and breeding wheat for tan spot resistance. We characterized 231 single spore isolates from Latvia (n = 15), Lithuania (n = 107), and Romania (n = 109) for Ptr ToxA and Ptr ToxB genes using two genes specific primers. A subset (139) of 231 isolates were further characterized for their race structure by inoculating them individually on tan spot wheat differentials set. Majority (83%) of the 231 isolates amplified Ptr ToxA gene suggesting prevalence of race 1 and 2. Further, phenotypic characterization of 139 isolates also showed wide prevalence of races 1 (68%), 2 (8%), 3 (11%), and 4 (5%) were also identified from Baltic States as well as Romania. Eighteen of the isolates (13%) did not seem to be of any of the eight known races as they lacked Ptr ToxA gene but they behaved like either race 1 or race 2, suggesting possibility of novel toxins in these isolates as their virulence tools.

  14. La migración de jóvenes zapatistas a Estados Unidos como desplazamiento geográfico, político y subjetivo

    Directory of Open Access Journals (Sweden)

    Alejandra Aquino Moreschi

    2012-04-01

    Full Text Available Abstract: The migration of young Zapatistas to the United States as a geographic, political and subjective displacementThis article analyses how some young Zapa-tistas become international migrants that are put into global circuits of work under a capi-talist regime of flexible accumulation. It is argued that the migration of these young people represents a geographical, political and subjective displacement in which not only are they transported thousands of kilo-metres away from their towns, but they also experience a change in their subjectivities, their future perspectives and their life-time ambitions in comparison to previous genera-tions. It is shown that the migratory experi-ence of young Zapatistas is marked by ten-sion between periods of being practically unable to move to certain markets of work and certain geographic regions – particularly in agricultural California – and periods when, in contrast, they cannot establish themselves for any length of time in the same place, or continue in the same niche of work. In other words, their experiences have oscillated between periods in which they become a 'captive work force' that cannot move freely and periods when, in contrast, they become 'labour nomads' obligated to constant displacement and the impossibility of establishing themselves in the same place. These two situations are produced by the control over their 'illegalization' and represent the flip sides of the same coin. These two sides have as a consequence the extraction of cheap and hardworking labour; on the one hand they are prevented from moving, and on the other, from staying.Resumen:Este artículo analiza cómo algunos jóvenes zapatistas se convierten en migrantes inter-nacionales insertos en circuitos globales de trabajo bajo un régimen capitalista de acu-mulación flexible. Se argumenta que la mi-gración de estos jóvenes representa un des-plazamiento geográfico, político y subjetivo, ya que ellos no sólo se

  15. Derivation of $m_A \\simeq M_Z$ and $\\tan \\beta > \\sqrt 3$ in the Minimal Supersymmetric Standard Model

    CERN Document Server

    Ma, E

    1994-01-01

    In the minimal supersymmetric standard model, the Higgs sector has two unknown parameters, usually taken to be $\\tan \\beta \\equiv v_2/v_1$ and $m_A$, the mass of its one physical pseudoscalar particle. By minimizing the minimum of the Higgs potential along a certain direction in parameter space, it is shown that $m_A = M_Z$ + radiative correction, and if one further plausible assumption is made, $\\tan \\beta > \\sqrt 3$.

  16. Agenda-setting effects of sun-related news coverage on public attitudes and beliefs about tanning and skin cancer.

    Science.gov (United States)

    Dixon, Helen; Warne, Charles; Scully, Maree; Dobbinson, Suzanne; Wakefield, Melanie

    2014-01-01

    The topics and framing of news stories relevant to skin cancer prevention have shifted over time. This study examined agenda-setting effects of such news stories on public attitudes and beliefs about tanning and skin cancer. Content analysis data on 516 articles published in two major daily newspapers in Melbourne, Australia, from 1994 to 2007 were combined with circulation data to generate indices of potential news exposure. Associations between these indices and cross-sectional telephone survey data from the same period on 6,244 adults' tanning attitudes and perceived susceptibility to skin cancer were examined using logistic regression models, accounting for the temporal precedence of news content. Pro-sun protection stories on attitudes and behavior were associated with older adults not thinking a tan looks healthy. Pro-sun protection stories on solaria were associated with less preference for a deep tan among young adults who like to suntan. Stories on vitamin D that were unsupportive of or ambiguous about sun protection were associated with a number of pro-tan attitudes among younger adults. Results indicate news coverage during 1994-2007 served an important agenda-setting role in explaining the public's attitudes and beliefs about tanning and skin cancer. Vitamin D stories appeared most influential, particularly among young adults.

  17. Gigantic diphoton rate of heavy Higgs bosons in the aligned two Higgs doublet models with small $\\tan\\beta$

    CERN Document Server

    Song, Jeonghyeon

    2014-01-01

    We study the implications of the LHC heavy neutral Higgs search data on the aligned two Higgs doublet model with softly broken $Z_2$ symmetry. When $\\tan\\beta$ is small, the gluon fusion production of the heavy CP-even scalar $H^0$ or the CP-odd scalar $A^0$ becomes large enough to constrain the model by the current $\\gamma\\gamma$, $\\tau^+\\tau^-$, and $t\\bar{t}$ data. By reinvestigating this small $\\tan\\beta$ region, we find that the indirect constraints like $\\Delta\\rho$, $b\\to s \\gamma$, $\\Delta M_{B_d}$, $R_b$, $\\epsilon_K$, and the perturbativity of running top Yukawa coupling are rather weak to be $\\tan\\beta > 0.5$. The current heavy Higgs search results are shown to put more significant bounds. If $m_H \\simeq m_A$, the $t\\bar{t}$ mode excludes $\\tan\\beta< 1.5$ for $m_{H,A}=500-600\\,$GeV in all four types, and the $\\gamma\\gamma$ and $\\tau^+\\tau^-$ modes exclude $\\tan\\beta < 1-3$ ($\\tan\\beta < 3-10$) for $m_{H,A}=120-340\\,$GeV in Type I, II, and Y (Type X).

  18. Gigantic diphoton rate of heavy Higgs bosons in the aligned two Higgs doublet models with small tan β

    Science.gov (United States)

    Song, Jeonghyeon; Yoon, Yeo Woong

    2015-06-01

    We study the implications of the LHC heavy neutral Higgs boson search data on the aligned two Higgs doublet model with a softly broken Z2 symmetry. When tan β is small, the gluon fusion production of the heavy C P -even scalar H0 or the C P -odd scalar A0 becomes large enough to constrain the model by the current γ γ , τ+τ- , and t t ¯ data. By reinvestigating the indirect constraints from Δ ρ , b →s γ , Δ MBd , Rb, ɛK , and the perturbativity of the running top quark Yukawa coupling, we find that the small tan β region is still allowed: for instance, tan β ≳0.6 (0.5 ) for Type I and X (II and Y) for mH±=800 GeV . We find that the current LHC results of the heavy Higgs searches at √{s }=8 TeV are shown to put on more significant bounds. If mH≃mA , the t t ¯ mode excludes tan β ≲1.5 for mH ,A=500 - 600 GeV in all four types, and the γ γ and τ+τ- modes exclude tan β ≲1 - 3 (tan β ≲3 - 10 ) for mH ,A=150 - 340 GeV in Types I, II, and Y (Type X).

  19. El nivel educativo como factor asociado al bienestar subjetivo y la salud mental en la población española / Educational Level as a Member of the Subjective Well- Being and Mental Health in the Spanish Population

    Directory of Open Access Journals (Sweden)

    Ernesto De la Cruz-Sánchez

    2013-01-01

    Full Text Available El objetivo de este trabajo fue evaluar la asociación entre el nivel educativo alcanzado con el bienestar emocional y la salud mental de los españoles. Un total de 29.478 personas adultas participaron en la Encuesta Nacional de Salud de España 2006, encontrándose que un nivel educativo bajo se asocia con peor salud mental (OR 1.65 hombres y OR 2.36 mujeres, valoración mala o muy mala de la salud (OR 2.10 hombres y OR 2.53 mujeres, menor apoyo social (OR 1.31 hombres y OR 1.66 mujeres y sedentarismo (OR 2.09 hombres y OR 1.80 mujeres. En la muestra estudiada, el nivel educativo es un factor asociado a diferentes dimensiones de la salud relacionadas con el bienestar subjetivo y la salud mental.

  20. Completion summary for boreholes TAN-2271 and TAN‑2272 at Test Area North, Idaho National Laboratory, Idaho

    Science.gov (United States)

    Twining, Brian V.; Bartholomay, Roy C.; Hodges, Mary K.V.

    2016-06-30

    In 2015, the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, drilled and constructed boreholes TAN-2271 and TAN-2272 for stratigraphic framework analyses and long-term groundwater monitoring of the eastern Snake River Plain aquifer at the Idaho National Laboratory in southeast Idaho. Borehole TAN-2271 initially was cored to collect continuous geologic data, and then re-drilled to complete construction as a monitor well. Borehole TAN-2272 was partially cored between 210 and 282 feet (ft) below land surface (BLS) then drilled and constructed as a monitor well. Boreholes TAN-2271 and TAN-2272 are separated by about 63 ft and have similar geologic layers and hydrologic characteristics based on geologic, geophysical, and aquifer test data collected. The final construction for boreholes TAN-2271 and TAN-2272 required 10-inch (in.) diameter carbon-steel well casing and 9.9-in. diameter open-hole completion below the casing to total depths of 282 and 287 ft BLS, respectively. Depth to water is measured near 228 ft BLS in both boreholes. Following construction and data collection, temporary submersible pumps and water-level access lines were placed to allow for aquifer testing, for collecting periodic water samples, and for measuring water levels.Borehole TAN-2271 was cored continuously, starting at the first basalt contact (about 33 ft BLS) to a depth of 284 ft BLS. Excluding surface sediment, recovery of basalt and sediment core at borehole TAN-2271 was better than 98 percent. Based on visual inspection of core and geophysical data, material examined from 33 to 211ft BLS primarily consists of two massive basalt flows that are about 78 and 50 ft in thickness and three sediment layers near 122, 197, and 201 ft BLS. Between 211 and 284 ft BLS, geophysical data and core material suggest a high occurrence of fractured and vesicular basalt. For the section of aquifer tested, there are two primary fractured aquifer intervals: the first between 235 and

  1. Completion summary for boreholes TAN-2271 and TAN‑2272 at Test Area North, Idaho National Laboratory, Idaho

    Science.gov (United States)

    Twining, Brian V.; Bartholomay, Roy C.; Hodges, Mary K.V.

    2016-06-30

    In 2015, the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, drilled and constructed boreholes TAN-2271 and TAN-2272 for stratigraphic framework analyses and long-term groundwater monitoring of the eastern Snake River Plain aquifer at the Idaho National Laboratory in southeast Idaho. Borehole TAN-2271 initially was cored to collect continuous geologic data, and then re-drilled to complete construction as a monitor well. Borehole TAN-2272 was partially cored between 210 and 282 feet (ft) below land surface (BLS) then drilled and constructed as a monitor well. Boreholes TAN-2271 and TAN-2272 are separated by about 63 ft and have similar geologic layers and hydrologic characteristics based on geologic, geophysical, and aquifer test data collected. The final construction for boreholes TAN-2271 and TAN-2272 required 10-inch (in.) diameter carbon-steel well casing and 9.9-in. diameter open-hole completion below the casing to total depths of 282 and 287 ft BLS, respectively. Depth to water is measured near 228 ft BLS in both boreholes. Following construction and data collection, temporary submersible pumps and water-level access lines were placed to allow for aquifer testing, for collecting periodic water samples, and for measuring water levels.Borehole TAN-2271 was cored continuously, starting at the first basalt contact (about 33 ft BLS) to a depth of 284 ft BLS. Excluding surface sediment, recovery of basalt and sediment core at borehole TAN-2271 was better than 98 percent. Based on visual inspection of core and geophysical data, material examined from 33 to 211ft BLS primarily consists of two massive basalt flows that are about 78 and 50 ft in thickness and three sediment layers near 122, 197, and 201 ft BLS. Between 211 and 284 ft BLS, geophysical data and core material suggest a high occurrence of fractured and vesicular basalt. For the section of aquifer tested, there are two primary fractured aquifer intervals: the first between 235 and

  2. Knowledge about Ultraviolet Radiation Hazards and Tanning Behavior of Cosmetology and Medical Students.

    Science.gov (United States)

    Zuba, Ewelina Bogumiła; Francuzik, Wojciech; Malicki, Przemysław; Osmola-Mańkowska, Agnieszka; Jenerowicz, Dorota

    2016-04-01

    Dear Editor, Ultraviolet (UV) radiation is a well-known physical hazard responsible for photoaging, photoallergic, and phototoxic reactions as well as carcinogenesis, including life-threatening melanomas (1,2). Overexposure to both natural and artificial UV radiation is a public health concern. 30% of cancers diagnosed worldwide are skin cancers. Approximately three million non-melanoma skin cancers and 132 000 new cases of melanomas are diagnosed globally each year (3). Sunburns, especially in childhood, are a very important risk factor for melanomas. Several studies demonstrated a positive association between sunbed use and an increased incidence of malignant melanoma (4). Current medical and cosmetology students will soon be knowledge providers about the risks of excessive exposure to UV radiation and prophylaxis of its consequences. Our aim was to evaluate their knowledge about the side effects of ultraviolet radiation and tanning behaviors. Details on the knowledge and habits of students were obtained during classes at the Poznan University of Medical Sciences. With approval from the Institutional Bioethical Committee, a 41-question anonymous survey was conducted in the spring of 2012 among 190 medical (1-6 year) and cosmetology students (1-5 year). The mean age of the study group was 22.3 years (standard deviation (SD) = 2.4 years), range 19-28 years. The survey was composed of closed and open-ended questions prepared by the authors. The first part of the form included demographic data: gender, age, degree course, and school year. The students were also asked about their reaction to sunlight, sunburns in childhood, and personal and family history of skin cancers or dysplastic nevus syndrome. The factual section of the survey contained questions evaluating responder knowledge about sunbeds and risk of UV radiation as well as their personal tanning habits. The open-ended questions asked responders to provide definitions of: skin phototype, sun protection factor

  3. Impact of an outright ban on the availability of commercial tanning services in Victoria, Australia.

    Science.gov (United States)

    Sinclair, C; Cleaves, N; Dunstone, K; Makin, J; Zouzounis, S

    2016-08-01

    Australian states have introduced an outright ban on commercial artificial tanning sunbeds. This was based on evidence from systematic reviews affirming a strong association between tanning bed use and increased risk of melanoma. The implementation of the ban provides an opportunity to assess the effectiveness of the legislation in preventing access to artificial UV radiation. Compliance with the ban has been enforced and monitored by government departments. We additionally monitored online tanning bed advertisements before and after the ban, showing a decline over time in the number of sunbeds advertised for sale on gumtree.com.au and ebay.com.au, from a peak of 115 advertisements in May 2014 to 50 or fewer per month from February 2015. There was also an increase in advertised price, with the percentage of sunbeds offered in Victoria on gumtree.com.au at higher than $2 000 increasing from around 25% between January and June 2014 to 65% in the quarter following the introduction of the ban. Advertisements on gumtree.com.au from individuals wishing to access a sunbed in a private home in Victoria increased from only isolated instances in the months immediately prior to the ban, to between 25 and 77 advertisements per month in the quarter following the ban. In summary, the introduction of an outright ban of commercial sunbeds has achieved a dramatic reduction in the availability of harmful artificial UV radiation sources in Australia. Long-term benefits to the health of the population and a reduction in costs to the health system are expected to result.

  4. Modelling of XCO2 Surfaces Based on Flight Tests of TanSat Instruments

    Directory of Open Access Journals (Sweden)

    Li Li Zhang

    2016-11-01

    Full Text Available The TanSat carbon satellite is to be launched at the end of 2016. In order to verify the performance of its instruments, a flight test of TanSat instruments was conducted in Jilin Province in September, 2015. The flight test area covered a total area of about 11,000 km2 and the underlying surface cover included several lakes, forest land, grassland, wetland, farmland, a thermal power plant and numerous cities and villages. We modeled the column-average dry-air mole fraction of atmospheric carbon dioxide (XCO2 surface based on flight test data which measured the near- and short-wave infrared (NIR reflected solar radiation in the absorption bands at around 760 and 1610 nm. However, it is difficult to directly analyze the spatial distribution of XCO2 in the flight area using the limited flight test data and the approximate surface of XCO2, which was obtained by regression modeling, which is not very accurate either. We therefore used the high accuracy surface modeling (HASM platform to fill the gaps where there is no information on XCO2 in the flight test area, which takes the approximate surface of XCO2 as its driving field and the XCO2 observations retrieved from the flight test as its optimum control constraints. High accuracy surfaces of XCO2 were constructed with HASM based on the flight’s observations. The results showed that the mean XCO2 in the flight test area is about 400 ppm and that XCO2 over urban areas is much higher than in other places. Compared with OCO-2’s XCO2, the mean difference is 0.7 ppm and the standard deviation is 0.95 ppm. Therefore, the modelling of the XCO2 surface based on the flight test of the TanSat instruments fell within an expected and acceptable range.

  5. Study of Tanning Ability of the Bisphenol S Derivatives-Al(Ⅲ)Complex Tanning Agent%双酚S衍生物-铝(Ⅲ)配合物的鞣性研究

    Institute of Scientific and Technical Information of China (English)

    强西怀; 黄剑; 张辉

    2013-01-01

    用双酚S衍生物与碱式铝盐形成的配合物对山羊酸皮进行鞣制实验,通过测定坯革收缩温度(Ts)和观察粒面状况变化,发现配合物的鞣制效果和铝盐的碱度及其与双酚S衍生物的配比相关.实验中最佳鞣性的配合物组成是n(双酚S衍生物)∶n(Al3+)=1∶1,铝盐碱度以33%为宜;优选的配合物鞣制的适宜应用工艺主要参数为:配合物鞣剂用量5%,鞣制3h,其鞣制的坯革Ts达到78℃;将双酚S衍生物、碱式硫酸铝和配合物三者鞣性进行对比,证实了双酚S衍生物与碱式铝盐配体之间形成了一定的配位络合,鞣制性能具有协同效应;通过考察坯革经不同介质处理后收缩温度的变化情况,表明配合物与皮胶原纤维具有良好的键合作用.%The property of Bisphenol S derivatives - Al( HI ) complex tanning agent was studied with the goal pickling pelts tanning application and evaluated the changes of shrinkage temperature and grain of the crust. It was found that the tanning property is related to the alkalinity of aluminum salts and its proportion complexed with the Bisphenol S derivatives. The results indicated that the best alkalinity is 33 % , the best proportion is n( Bisphenol S derivatives) :n( Al3+ ) = 1 : 1; the optimal application process of the complex is used at the amount of 5 % ,tanning 3h and the shrinkable temperature of crust could reach to 78℃ after tanning . Comparing to after aluminum tanning and Bisphenol S derivatives tanning, it showed that there is synergy between the Bisphenol S derivatives and alkali aluminum salts in tanning and they could coordinate with each other and the complex tanning agent could combine with the collagen fiber well proved by the changes of shrinkage temperature after dealing with different mediums.

  6. Potentials of TanDEM-X Interferometric Data for Global Forest/Non-Forest Classification

    Science.gov (United States)

    Martone, Michele; Rizzoli, Paola; Brautigam, Benjamin; Krieger, Gerhard

    2016-08-01

    This paper presents a method to generate forest/non- forest maps from TanDEM-X interferometric SAR data. Among the several contributions which may affect the quality of interferometric products, the coherence loss caused by volume scattering represents the contribution which is predominantly affected by the presence of vegetation, and is therefore here exploited as main indicator for forest classification. Due to the strong dependency of the considered InSAR quantity on the geometric acquisition configuration, namely the incidence angle and the interferometric baseline, a multi-fuzzy clustering classification approach is used. Some examples are provided which show the potential of the proposed method. Further, additional features such as urban settlements, water, and critical areas affected by geometrical distortions (e.g. shadow and layover) need to be extracted, and possible approaches are presented as well. Very promising results are shown, which demonstrate the potentials of TanDEM-X bistatic data not only for forest identification, but, more in general, for the generation of a global land classification map as a next step.

  7. Interferometric SAR Coherence Models for Characterization of Hemiboreal Forests Using TanDEM-X Data

    Directory of Open Access Journals (Sweden)

    Aire Olesk

    2016-08-01

    Full Text Available In this study, four models describing the interferometric coherence of the forest vegetation layer are proposed and compared with the TanDEM-X data. Our focus is on developing tools for hemiboreal forest height estimation from single-pol interferometric SAR measurements, suitable for wide area forest mapping with limited a priori information. The multi-temporal set of 19 TanDEM-X interferometric pairs and the 90th percentile forest height maps are derived from Airborne LiDAR Scanning (ALS, covering an area of 2211 ha of forests over Estonia. Three semi-empirical models along with the Random Volume over Ground (RVoG model are examined for applicable parameter ranges and model performance under various conditions for over 3000 forest stands. This study shows that all four models performed well in describing the relationship between forest height and interferometric coherence. Use of an advanced model with multiple parameters is not always justified when modeling the volume decorrelation in the boreal and hemiboreal forests. The proposed set of semi-empirical models, show higher robustness compared to a more advanced RVoG model under a range of seasonal and environmental conditions during data acquisition. We also examine the dynamic range of parameters that different models can take and propose optimal conditions for forest stand height inversion for operationally-feasible scenarios.

  8. Broadband microwave response of superconducting NbN and TaN thin films

    Energy Technology Data Exchange (ETDEWEB)

    Felger, M. Maximilian; Pracht, Uwe S.; Dressel, Martin; Scheffler, Marc [1. Physikalisches Institut, Universitaet Stuttgart, D-70669 Stuttgart (Germany); Ilin, Konstantin; Siegel, Michael [Institut fuer Mikro- und Nanoelektronische Systeme, Karlsruher Institut fuer Technologie, D-76187 Karlsruhe (Germany)

    2015-07-01

    Ultrathin NbN and TaN films with their peculiar superconducting behavior are of interest both for fundamental physics (e.g. concerning the superconductor-insulator transition) and novel applications (e.g. for single-photon detectors). Here microwave spectroscopy is a powerful tool to characterize essential superconducting properties and to investigate the charge dynamics (Cooper pairs and quasiparticles). We have prepared by sputtering thin films of NbN (thickness between 3 nm and 20 nm; T{sub c} between 5 K and 13 K) and TaN (thickness 5 nm; T{sub c} between 8.5 K and 9.5 K) on sapphire substrates. We performed broadband microwave spectroscopy on these samples using a Corbino spectrometer at temperatures down to 1.1 K and at frequencies up to 50 GHz. From these data we determine the superconducting penetration depth and we evaluate the frequency-dependent conductivity. While many of the observed features can be described within expectations of conventional BCS theory, we also find deviations that are caused by fluctuations near the superconducting transition.

  9. A systematic review of visual image theory, assessment, and use in skin cancer and tanning research.

    Science.gov (United States)

    McWhirter, Jennifer E; Hoffman-Goetz, Laurie

    2014-01-01

    Visual images increase attention, comprehension, and recall of health information and influence health behaviors. Health communication campaigns on skin cancer and tanning often use visual images, but little is known about how such images are selected or evaluated. A systematic review of peer-reviewed, published literature on skin cancer and tanning was conducted to determine (a) what visual communication theories were used, (b) how visual images were evaluated, and (c) how visual images were used in the research studies. Seven databases were searched (PubMed/MEDLINE, EMBASE, PsycINFO, Sociological Abstracts, Social Sciences Full Text, ERIC, and ABI/INFORM) resulting in 5,330 citations. Of those, 47 met the inclusion criteria. Only one study specifically identified a visual communication theory guiding the research. No standard instruments for assessing visual images were reported. Most studies lacked, to varying degrees, comprehensive image description, image pretesting, full reporting of image source details, adequate explanation of image selection or development, and example images. The results highlight the need for greater theoretical and methodological attention to visual images in health communication research in the future. To this end, the authors propose a working definition of visual health communication.

  10. Discourse and policy making on consumer protection in the areas of mobile telecommunication and tanning.

    Science.gov (United States)

    Schweikardt, Christoph; Rosentreter, Michael; Gross, Dominik

    2012-01-01

    Perceived health risks from electromagnetic fields in mobile telecommunication and from UV radiation in tanning have become regulation issues in Germany during the last decade. Health risk messages from government expert bodies and the main stakeholders in these areas as well as subsequent consumer protection policy making are investigated. Publications and websites of government expert bodies and the main stakeholders as well as debates in Federal Parliament were analysed to compare argumentation patterns and parliamentary decision-making processes. In both areas, the public received competing health risk messages from the industries and their critics. As a government expert body, the Federal Office for Radiation Protection (BfS) held the view that alleged health risks from electromagnetic telecommunication were not proven, and propagated the precautionary principle. This opinion did not endanger the agreement of 2001 between the government and mobile telecommunication operators. After the failure to obtain voluntary commitment from the tanning industry, by contrast, the BfS recommended stricter consumer protection legislation, which was subsequently implemented. The BfS was in a key position to demand the prerogative of interpretation concerning mutually excluding health risk messages and to provide the argumentation which led the way to non-ionic radiation health protection measures.

  11. Nie-Tan Method and its Improved Version: A CounterexampleMétodo Nie-Tan y su Versión Mejorada: Un contraejemplo

    Directory of Open Access Journals (Sweden)

    Omar Salazar

    2016-05-01

    Full Text Available Abstract Context: The bottleneck on interval type-2 fuzzy logic systems is the output processing when using Centroid Type-Reduction + Defuzzification (CTR+D method. Nie and Tan proposed an approximation to CTR+D (NT method. Recently, Mendel and Liu improved the NT method (INT method. Numerical examples (due to Mendel and Liu exhibit the NT and INT methods as good approximations to CTR+D. Method: Normalization to the unit interval of membership function domains (examples and counterexample and variables involved in the calculations for the three methods. Examples (due to Mendel and Liu taken from the literature. Counterexample with piecewise linear membership functions. Comparison by means of error and percentage relative error. Results: NT vs. CTR+D: Our counterexample showed an error of 0.1014 and a percentage relative error of 30.53%. This is respectively 23 and 32 times higher than the worst case obtained in the examples. INT vs. CTR+D: Our counterexample showed an error of 0.0725 and a percentage relative error of 21.83%. This is respectively 363 and 546 times higher than the worst case obtained in the examples. Conclusions: NT and INT methods are not necessarily good approximations to the CTR+D method.

  12. Solares... qué lugares tan gratos para conversar. Apuntes sobre la rehabilitación relacional en el barrio de las Adelfas

    OpenAIRE

    Fernández Casadevante, José Luis; Ramos, Alfredo

    2014-01-01

    La palabra ilusión tiene distintas acepciones, por un lado encontramos su vinculación con la esperanza de que algo se haga realidad, y por otro, la vemos como una mera representación sin realidad detrás, como un holograma. Aprender a poner en juego tanto los anhelos, deseos y esperanzas, como las distintas representaciones que constituyen lo que llamamos realidad, es el saber necesario para arriesgarse a practicar el ilusionismo.El ilusionismo trata de hacernos creer que algo imposible está s...

  13. Multi-Temporal Investigation of Greenland Ice Sheet Snow Facies Using TanDEM-X Mission Data

    Science.gov (United States)

    Rizzoli, Paola; Martone, Michele; Brautigam, Benjamin; Rott, Helmut; Moreira, Alberto

    2016-08-01

    This paper presents the first results of the developed approach for classifying Greenland ice sheet snow facies, based on the use of interferometric TanDEM-X SAR data. Large-scale mosaics of radar backscatter and volume decorrelation, derived from the interferometric coherence, are used as input data set for applying a classification algorithm based on the c-means fuzzy clustering. The unique data set provided by TanDEM-X is particularly suitable for this analysis due to the single-pass bistatic acquisition mode which does not suffer from temporal decorrelation. The obtained results have been verified with external snow melt data. Moreover, independent multi-temporal TanDEM-X backscatter data and interferometric time series have been analyzed as well.

  14. Effect of Pretreatment of TaN Substrates on Atomic Layer Deposition Growth of Ru Thin Films

    Institute of Scientific and Technical Information of China (English)

    ZHOU Mi; CHEN Tao; TAN Jing-Jing; RU Guo-Ping; JIANG Yu-Long; LIU Ran; QU Xin-Ping

    2007-01-01

    The polycrystalline ruthenium films are grown on TaN substrates by atomic layer deposition (ALD) using bis(cyclopentadienyl) ruthenium [RuCp2] and oxygen as ruthenium precursor and reactant respectively at a deposition temperature of 330℃. The low-energy Ar ion bombardment and Ru pre-deposition are performed to the underlying TaN substrates before ALD process in order to improve the Ru nucleation. X-ray diffraction,X-ray photoelectron spectroscopy, canning electron microscopy and atomic force microscopy are carried out to characterize the properties of ALD Ru films.The results show that the nucleation density of Ru films with Ar+ bombardment to the underlying TaN substrates is much higher than that of the ones without any pretreatment. The possible reasons are discussed.

  15. The pre-launch status of TanSat Mission: Instrument, Retrieval algorithm, Flux inversion and Validation

    Science.gov (United States)

    Liu, Yi; Yin, Zengshan; Yang, Zhongdong; Zheng, Yuquan; Yan, Changxiang; Tian, Xiangjun; Yang, Dongxu

    2016-04-01

    After 5 years development, The Chinese carbon dioxide observation satellite (TanSat), the first scientific experimental CO2 satellite of China, step into the pre-launch phase. The characters of pre-launch carbon dioxide spectrometer have been optimized during the laboratory test and calibration. Radiometric calibration shows a SNR of 440 (O2A 0.76um band), 300 (CO2 1.61um band) and 180 (CO2 2.06um band) on average in the typical radiance condition. Instrument line shape was calibrated automatically in using a well design testing system with laser control and record. After a series of test and calibration in laboratory, the instrumental performances meet the design requirements. TanSat will be launched on August 2016. The optimal estimation theory was involved in TanSat XCO2 retrieval algorithm in a full physics way with simulation of the radiance transfer in atmosphere. Gas absorption, aerosol and cirrus scattering and surface reflectance associate with wavelength dispersion have been considered in inversion for better correction the interference errors to XCO2. In order to simulate the radiance transfer precisely and efficiently, we develop a fast vector radiative transfer simulation method. Application of TanSat algorithm on GOSAT observation (ATANGO) is appropriate to evaluate the performance of algorithm. Validated with TCCON measurements, the ATANGO product achieves a 1.5 ppm precision. A Chinese carbon cycle data- assimilation system Tan-Tracker is developed based on the atmospheric chemical transport model GEOS-Chem. Tan-Tracker is a dual-pass data-assimilation system in which both CO2 concentrations and CO2 fluxes are simultaneously assimilated from atmospheric observations. A validation network has been established around China to support a series of CO2 satellite of China, which include 3 IFS-125HR and 4 Optical Spectrum Analyzer etc.

  16. RNAi-Mediated Functional Analysis of Bursicon Genes Related to Adult Cuticle Formation and Tanning in the Honeybee, Apis mellifera

    Science.gov (United States)

    Elias-Neto, Moysés; Falcon, Tiago; Dallacqua, Rodrigo Pires; Martins, Juliana Ramos; Bitondi, Marcia Maria Gentile

    2016-01-01

    Bursicon is a heterodimeric neurohormone that acts through a G protein-coupled receptor named rickets (rk), thus inducing an increase in cAMP and the activation of tyrosine hydroxylase, the rate-limiting enzyme in the cuticular tanning pathway. In insects, the role of bursicon in the post-ecdysial tanning of the adult cuticle and wing expansion is well characterized. Here we investigated the roles of the genes encoding the bursicon subunits during the adult cuticle development in the honeybee, Apis mellifera. RNAi-mediated knockdown of AmBurs α and AmBurs β bursicon genes prevented the complete formation and tanning (melanization/sclerotization) of the adult cuticle. A thinner, much less tanned cuticle was produced, and ecdysis toward adult stage was impaired. Consistent with these results, the knockdown of bursicon transcripts also interfered in the expression of genes encoding its receptor, AmRk, structural cuticular proteins, and enzymes in the melanization/sclerotization pathway, thus evidencing roles for bursicon in adult cuticle formation and tanning. Moreover, the expression of AmBurs α, AmBurs β and AmRk is contingent on the declining ecdysteroid titer that triggers the onset of adult cuticle synthesis and deposition. The search for transcripts of AmBurs α, AmBurs β and candidate targets in RNA-seq libraries prepared with brains and integuments strengthened our data on transcript quantification through RT-qPCR. Together, our results support our premise that bursicon has roles in adult cuticle formation and tanning, and are in agreement with other recent studies pointing for roles during the pharate-adult stage, in addition to the classical post-ecdysial ones. PMID:27907116

  17. Comparación entre los métodos subjetivo y objetivo para estimar el consumo de sodio en hipertensos Comparison between subjective and objective methods for sodium intake estimate among hypertensive persons

    Directory of Open Access Journals (Sweden)

    L. B. Dallepiane

    2011-02-01

    Full Text Available Introducción: El exceso de consumo de sodio contribuye a la aparición de hipertensión arterial; la relación entre el aumento de la tensión arterial y la edad avanzada es más alta en poblaciones cuya ingestión de sal es mayor. Objetivo: Este estudio tuvo como objetivo comparar el método subjetivo y el objetivo a fin de estimar el consumo del sodio. Metodología: El diseño es del tipo retrospectivo con datos secundarios de banco de datos brutos, utilizando como método subjetivo la aplicación de un cuestionario de consumo de sodio en el cual el relato de consumo ha sido convertido a mg de sodio consumido por día; como método objetivo el resultado de la excreción de sodio en la orina en 24 horas por hipertensos mayores de 50 años. Los datos han sido analizados mediante software SPSS, utilizando la correlación de Spearman. Resultados: Los principales resultados no han demostrado correlación lineal significativa entre los valores de consumo de sodio relatado en el cuestionario en relación a los valores de la recolección de sodio (Na 24 h. Conclusión: A pesar de sus ventajas, el método subjetivo no se ha correlacionado con la excreción urinaria de sodio. Se necesitan nuevos estudios que puedan elucidar los presentes resultados frente a la diferencia encontrada con otros estudios.Introduction: High sodium intake contributes to arterial hypertension; the relationship between high blood pressure and human aging is stronger among populations with high sodium intake. Objectives: The aim of this research is to compare subjective and objective methods on the estimate of the consumption of sodium. Methods: This is a retrospective investigation along with secondary topics from the raw data base. The subjective method used was result of the score of the application of a questionary about the sodium intake, where the sodium consumption report was converted into daily mg of sodium intake. The objective method was the result of the urine

  18. Relações entre o bem-estar subjetivo e a funcionalidade em idosos em seguimento ambulatorial Relationship between subjective well-being and the functionality of elderly outpatients

    Directory of Open Access Journals (Sweden)

    Giovana Sposito

    2010-02-01

    Full Text Available OBJETIVO: Este estudo teve como objetivo verificar a relação entre o bem-estar subjetivo, independência funcional e desempenho de membros inferiores (força muscular, velocidade de marcha e equilíbrio de idosos em seguimento ambulatorial, em relação ao sexo e a grupos etários. MÉTODOS: Foram avaliados 125 idosos de ambos os sexos com idade mínima de 60 anos, atendidos em um ambulatório de geriatria. Os instrumentos utilizados foram: 1 Medida da Independência Funcional (MIF para avaliar a dependência funcional; 2 Short Physical Performance Battery (SPPB para medir o desempenho físico; 3 Bem-Estar Subjetivo (BES: questões sobre a saúde e satisfação com a vida. RESULTADOS: A amostra utilizada foi de conveniência, com predomínio do sexo feminino, que apresentou maior comprometimento funcional. As correlações do bem-estar subjetivo com o teste de desempenho não demonstraram diferenças entre os sexos, contudo os idosos mais velhos apresentaram maior nível de satisfação que os idosos mais jovens. A saúde percebida também foi mais satisfatória entre os idosos mais velhos. Entretanto, a saúde percebida comparada mostrou melhores resultados nos idosos com moderado a bom desempenho físico. CONCLUSÃO: Os resultados sugerem que indivíduos mais velhos apresentam maior satisfação com a vida e melhor saúde percebida. Além disso, o bom desempenho físico foi uma variável de relevância para melhor saúde percebida quando comparada a outras pessoas.OBJECTIVE: The aim of this study was to investigate the relationship between subjective well-being, functional independence and lower-limb performance (muscle strength, gait velocity and balance among elderly people undergoing outpatient follow-up, stratified by sex and age groups. METHODS: We evaluated 125 elderly people, aged 60 years and over, who received care at a geriatric outpatient clinic. The instruments used were: 1 Functional Independence Measure (FIM to evaluate

  19. Da conceituação de Estado Subjetivo até a proposição dos Escalões de percepto From the Subjective State concept toward the Percept Echelons proposal

    Directory of Open Access Journals (Sweden)

    Arno Engelmann

    2002-01-01

    Full Text Available O artigo refaz o percurso de Engelmann, lidando em 1962 com perceptos chamados de afetivos até a proposição mais recente de escalões de percepto. O estudo aprofundado dos perceptos afetivos indicavam estados conscientes internos, porém não localizados. Engelmann denominou-os estados subjetivos. Mas deparou que havia ao mesmo tempo outros perceptos internos, esses localizados. A solução era dois escalões: um superior - estados subjetivos - e outro inferior - perceptos internos. Mais tarde Engelmann encontrou estados objetivos, estados conscientes não localizados e externos, representados principalmente por locuções meteorológicas. Finalmente, reestudando um número enorme de experimentos de percepção humana, verificou que havia cinco escalões de percepto, organizados prioritariamente na seqüência seguinte levando em conta o tamanho das partes: estados total, bipartido, supramodal, modal e fragmentário. Os indivíduos são capazes de estar momentaneamente apenas num desses escalões, nunca mais de um. Não se sabe, por enquanto, se é possível representar por intermédio de escalões outras partes da consciência além dos perceptos.Dealing firstly with the affective percepts in 1962 and ending with percept echelons, the paper reconstructs Engelmann's psychological pathway. A serious study of mostly affect percepts indicated nonlocalized internal conscious states. Engelmann called them subjeticve states. But at the same time he found that there were other internal but localized external percepts. He called them objetive states. They were mainly characterized through reporting the weather. Finally, revising numerous perception studies, total, bipartite, supramodal, modal and fragmentary states are found and organizaed through largeness priority. Engelmann called them percepts echelons. In one moment only one percept echelon is possible, not more than one. So far it is not known if others parts of consciousness are divisible

  20. Conocimiento objetivo y subjetivo sobre el VIH/SIDA como predictor del uso de condón en adolescentes Objective and subjective knowledge on HIV/AIDS as predictors of condom use in adolescents

    Directory of Open Access Journals (Sweden)

    Alberto Villaseñor-Sierra

    2003-01-01

    Full Text Available OBJETIVO: Evaluar la asociación de conocimientos objetivo y subjetivo sobre VIH/SIDA con el uso del condón. MATERIAL Y MÉTODOS: Se analizó la base de datos de una encuesta aleatoria, anónima y autoaplicada en 1 410 adolescentes de cuatro estratos socioeconómicos de Guadalajara, Jalisco, México, entre 1995 y 1996. El conocimiento objetivo se evaluó mediante 24 preguntas sobre VIH/SIDA y el "subjetivo" con la pregunta: "¿qué tanto crees conocer sobre el SIDA?" Las variables predictoras del uso del condón se identificaron mediante regresión logística y cálculo de la razón de momios con IC 95%. RESULTADOS: El nivel de conocimiento objetivo fue regular y tuvo diferencias por estratos (pOBJECTIVE: To evaluate the association between objective and subjective knowledge on HIV/AIDS and condom use. MATERIAL AND METHODS: Analysis of a database from an anonymous, self-applied, randomized survey conducted between 1995 and 1996. Study subjects were 1 410 adolescents of four socioeconomic strata from Guadalajara, Mexico. Objective knowledge was assessed with 24 questions regarding HIV/AIDS, and subjective knowledge with the question "how much do you think you know about HIV/AIDS?" The variables associated with condom use were identified using logistic regression analysis and by calculating odds ratios with a 95% confidence interval. RESULTS: The degree of objective knowledge was "average", differentiated by socioeconomic strata (p< 0.001, and was higher in adolescents from medium and high socioeconomic strata (p< 0.008. Regarding subjective knowledge, adolescents from the low, medium, and high socioeconomic strata claimed to know "a little", and the ones from the lowest stratum claimed to know "very little". Condom use was higher in males (35.4%, and in adolescents from high socioeconomic strata (p< 0.005, than in females (15.3% (p< 0.001. Although there was a correlation between objective and subjective knowledge (r = 0.37, p< 0.001, a higher

  1. Calidad de vida familiar y bienestar subjetivo en jóvenes con discapacidad intelectual de un establecimiento con educación especial y laboral de la Ciudad de Talca

    Directory of Open Access Journals (Sweden)

    YOHANINA ANDREA MUÑOZ VALDÉS

    2012-01-01

    Full Text Available El estudio que se presenta tuvo como objeti vo identificar la relación entre la Calidad de Vi - da Familiar, Funcionamiento Familiar y Bienestar Subjetivo junto con los factores de la calidad de vida familiar en relación al bienestar subjetivo en jóvenes con discapacidad intelectual, alum nos de un establecimiento de educación especial y laboral de la ciudad de Talca (Chile. La muestra fue dividida en dos grupos: uno de ellos estuvo integrado por 53 alumnos de 16 a 24 años de edad, del citado establecimiento que fueron diagnosticados con discapacidad intelectual: el 52.8% de ellos manifiesta discapacidad intelectual como único predictor de su condición, mientras que el 47.2% restante corresponde a comorbilidad de ésta con otros tipos de discapacidad asociados. Los niveles de discapacidad van desde el leve (37.7%, seguido por el moderado (50.9% y finalmente el severo y el profundo (3.8%. El otro grupo estuvo conformado por 53 apoderados, padres o tutores del mismo establecimiento educacional. Con la finalidad de medir las variables de estudio se administraron cuatro instrumentos: (1 la Escala de Calidad de Vida Familiar (Verdugo, Sainz & Rodríguez, 2009, (2 la versión traducida al español (Bellon, Delgado, Luna del Castillo & Lardelli, 1996 del Family Functioning Questionnaire (Smilkstein, Ashworth & Montano, 1982, (3 la adaptación y validación de Moyano y Ramos Alvarado (2007 de la Satisfaction with the Life Scale (Diener, Emmons, Larden & Griffin y (4 la versión chilena de Moyano-Díaz & Ramos (2007 de la Subjective Happiness Scale (Lyubomirsky & Lepper, 1999. Para realizar el estudio se utilizó una metodología descriptiva y correlacional de corte transversal a fin de establecer relaciones de con comitancia entre las variables. Los resultados principales demostraron una relación significativa entre importancia de la calidad de vida familiar y satisfacción de la calidad de vida familiar (r = .402; p < .01; entre felicidad

  2. Influência da autoestima, da regulação emocional e do gênero no bem-estar subjetivo e psicológico de adolescentes

    Directory of Open Access Journals (Sweden)

    Teresa Freire

    2011-01-01

    Full Text Available INTRODUÇÃO: A literatura científica tem evidenciado que a autoestima e a capacidade de regulação emocional estão presentes em vários quadros psicopatológicos, contudo a influência dessas variáveis no bem-estar tem sido pouco estudada teórica e empiricamente. OBJETIVO: Pretende-se analisar a relação dessas variáveis com o bem-estar subjetivo (satisfação com a vida e com o bem-estar psicológico (felicidade e significado. Pretende-se, ainda, verificar a capacidade de predição do gênero, da autoestima e das estratégias de regulação emocional (supressão emocional e reavaliação cognitiva nos diferentes componentes do bem-estar. MÉTODOS: Participaram do estudo 216 adolescentes de uma população normativa de ambos os sexos. Foram administrados, a todos os participantes, quatro instrumentos para avaliar a autoestima, a capacidade de regulação emocional, o bem-estar subjetivo e psicológico. RESULTADOS: A supressão emocional correlacionou-se negativamente com todas as medidas de bem-estar, enquanto a reavaliação cognitiva evidenciou correlação positiva mais significativa com os níveis de felicidade. A autoestima revelou correlação positiva forte com a satisfação com a vida e maior capacidade de predição do bem-estar do que as estratégias de regulação emocional. CONCLUSÃO: A autoestima revela ser uma variável importante na promoção do bem-estar dos adolescentes, assumindo-se como elemento fundamental numa intervenção clínica positiva e preventiva.

  3. Valoración de activos financieros utilizando Montecarlo: cuando el mundo no es tan normal.

    Directory of Open Access Journals (Sweden)

    Cecilia Amaya Ochoa

    2010-05-01

    Full Text Available Valorar activos financieros cuando el mundo no es tan normal como asumen muchos modelos financieros exige un método flexible para operar con diversas distribuciones, el cual, adicionalmente, pueda incorporar discontinuidades como las que se dan en procesos estocásticos de salto. El método Monte Carlo cumple con esos requisitos, además de generar una buena aproximación y ser eficiente, lo cual lo convierte en el más adecuado para aquellos casos en los cuales no se cumple el supuesto de normalidad. Este artículo explica como se aplica este método para la valoración de activos financieros, particularmente opciones financieras, cuando el activo subyacente sigue un proceso de volatilidad estocástica o de salto-difusión.

  4. Synthesis and study of MPNS/SMA nano-composite tanning agent

    Institute of Scientific and Technical Information of China (English)

    Hui Pan; Mei Qi; Zhi Jun Zhang

    2008-01-01

    The radical polymerization of maleic anhydride (MA),styrene (ST) with the vinyl groups introduced onto the surface of the nano-sized silica via solution polymerization method was developed.The methacryloxypropyl nano-sized silica (MPNS) was used as macromonomer and polymerized with maleic anhydride and styrene by initiating with BPO in toluene.The structure and properties of MPNS/SMA nano-composite were characterized by FT-IR spectra and TEM.Meanwhile,it was applied as tanning agent compared with the traditional styrene-maleic anhydride copolymer in leather.It was found that the applied leather had better quality characteristics with the addition of the nano-sized silica.

  5. Host range, growth property, and virulence of the smallpox vaccine: vaccinia virus Tian Tan strain.

    Science.gov (United States)

    Fang, Qing; Yang, Lin; Zhu, Weijun; Liu, Li; Wang, Haibo; Yu, Wenbo; Xiao, Genfu; Tien, Po; Zhang, Linqi; Chen, Zhiwei

    2005-05-10

    Vaccinia Tian Tan (VTT) was used as a vaccine against smallpox in China for millions of people before 1980, yet the biological characteristics of the virus remain unclear. We have characterized VTT with respect to its host cell range, growth properties in vitro, and virulence in vivo. We found that 11 of the 12 mammalian cell lines studied are permissive to VTT infection whereas one, CHO-K1, is non-permissive. Using electron microscopy and sequence analysis, we found that the restriction of VTT replication in CHO-K1 is at a step before viral maturation probably due to the loss of the V025 gene. Moreover, VTT is significantly less virulent than vaccinia WR but remains neurovirulent in mice and causes significant body weight loss after intranasal inoculation. Our data demonstrate the need for further attenuation of VTT to serve either as a safer smallpox vaccine or as a live vaccine vector for other pathogens.

  6. Microspore Embryogenesis Through Anther Culture in Citrus clementina Hort. ex Tan.

    Science.gov (United States)

    Chiancone, Benedetta; Germanà, Maria Antonietta

    2016-01-01

    Anther culture is a biotechnological method that allows to obtain, in one step, homozygous plants, very important to plant breeding, due to their numerous applications in mutation research, selection, genome sequencing, genetic analysis, and transformation. To induce the microspores, i.e., the immature male gametes, to switch from the normal gametophytic pathway to the sporophytic one, it is necessary to submit them to a type of stress, such as high or low temperature, starvation, or magnetic field. Stress can be applied to the donor plants and/or the floral buds or the anthers or the isolated microspores, before or during the culture. In this chapter, the protocol to induce gametic embryogenesis from anther culture of several cultivars of Citrus clementina Hort. ex Tan. is reported.

  7. Using TanDEM data for forest height estimation and change detection

    Science.gov (United States)

    Thiele, Antje; Dubois, Clémence; Boldt, Markus; Hinz, Stefan

    2016-10-01

    Mapping of forest coverage and forest changes became an increasing issue due to deforestation and forest degradation. Moreover, the estimation of related indicators such as carbon reduction, biomass and wood capacity is of large interest for industry and politics. As forest height is an important contributing parameter for these indicators, the region-wide estimation of forest heights is an essential step. This article investigates the accuracy potential of forest height estimation that can be reached by the current configuration of the two SAR satellites TerraSAR-X and TanDEM-X. Depending on the chosen acquisition mode and flight geometry, products of different quality can be achieved. Eight InSAR data sets showing different characteristics in geometric resolution, length of baseline, and mapping time, are processed and analyzed. To enable a thorough evaluation of the estimated heights, first-pulse LIDAR point clouds and aerial ortho-images are used as reference data.

  8. (g-2){sub μ} in the MSSM with tan β → ∞

    Energy Technology Data Exchange (ETDEWEB)

    Bach, Markus; Stoeckinger, Dominik; Stoeckinger-Kim, Hyejung [Institut fuer Kern- und Teilchenphysik, TU Dresden (Germany); Park, Jae-Hyeon [Departament de Fisica Teorica y IFIC, Universitat de Valencia-CSIC (Spain)

    2015-07-01

    We investigate the MSSM for the exotic scenario tan β → ∞ where one of the Higgs doublets does not obtain a vacuum expectation value. This leads to the masses of the down-type fermions being created completely on loop level. The one-loop results for the self energies can be used to calculate the Yukawa couplings which is explicitly done for the muon and utilized to compute the supersymmetric contributions to its anomalous magnetic moment. We identify the parameter regions in which these contributions are capable of explaining the discrepancy between Standard Model prediction and experimental result. Compared to the usual MSSM, this is possible with higher SUSY masses at the expense of a large muon Yukawa coupling. Other constraints like the metastability of the electroweak vacuum are considered as well.

  9. Thin absorber EUV photomask based on mixed Ni and TaN material

    Science.gov (United States)

    Hay, Derrick; Bagge, Patrick; Khaw, Ian; Sun, Lei; Wood, Obert; Chen, Yulu; Kim, Ryoung-han; Qi, Zhengqing John; Shi, Zhimin

    2016-05-01

    Lithographic patterning at the 7 and 5 nm nodes will likely require EUV (λ=13.5 nm) lithography for many of the critical levels. All optical elements in an EUV scanner are reflective which requires the EUV photomask to be illuminated at an angle to its normal. Current scanners have an incidence of 6 degree, but future designs will be properties of the Ni-Ta nano-composite material. Finite integral method and effective medium theory-based transfer matrix method have been independently developed to analyze the performance of the nano-composite absorption layer. We show that inserting 15% volume fraction Ni nanoparticles into 40-nm of TaN absorber material can reduce the reflection below 2% over the EUV range. Numerical simulations confirm that the reduced reflectivity is due to the increased absorption of Ni, while scattering only contributes to approximately 0.2% of the reduction in reflectivity.

  10. Tan's contact and the phase distribution of repulsive Fermi gases: Insights from QCD noise analyses

    CERN Document Server

    Porter, William J

    2016-01-01

    Path-integral analyses originally pioneered in the study of the complex-phase problem afflicting lattice calculations of finite-density quantum chromodynamics are generalized to non-relativistic Fermi gases with repulsive interactions. Using arguments similar to those previously applied to relativistic theories, we show that the analogous problem in nonrelativistic systems manifests itself naturally in Tan's contact as a nontrivial cancellation between terms with varied dependence on extensive thermodynamic quantities. We analyze that case under the assumption of gaussian phase distribution, which is supported by our Monte Carlo calculations and perturbative considerations. We further generalize these results to observables other than the contact, as well as to polarized systems and systems with fixed particle number. Our results are quite general in that they apply to repulsive multi-component fermions, are independent of dimensionality or trapping potential, and hold in the ground state as well as at finite...

  11. Exploring the Potential of TanDEM-X Data in Rice Monitoring

    Science.gov (United States)

    Erten, E.

    2015-12-01

    In this work, phenological parameters such as growth stage, calendar estimation, crop density and yield estimation for rice fields are estimated employing TanDEM-X data. Currently, crop monitoring is country-dependent. Most countries have databases based on cadastral information and annual farmer inputs. Inaccuracies are coming from wrong or missing farmer declarations and/or coarsely updated cadastral boundary definitions. This leads to inefficient regulation of the market, frauds as well as to ecological risks. An accurate crop calendar is also missing, since farmers provide estimations in advance and there is no efficient way to know the growth status over large plantations. SAR data is of particular interest for these purposes. The proposed method includes two step approach including field detection and phenological state estimation. In the context of precise farming it is substantial to define field borders which are usually changing every cultivation period. Linking the SAR inherit properties to transplanting practice such as irrigation, the spatial database of rice-planted agricultural crops can be updated. Boundaries of agricultural fields will be defined in the database, and assignments of crops and sowing dates will be continuously updated by our monitoring system considering that sowing practice variously changes depending on the field owner decision. To define and segment rice crops, the system will make use of the fact that rice fields are characterized as flooded parcels separated by path networks composed by soil or rare grass. This natural segmentation is well detectable by inspecting low amplitude and coherence values of bistatic acquisitions. Once the field borders are defined, the phenology estimation of crops monitored at any time is the key point of monitoring. In this aspect the wavelength and the polarization option of TanDEM-X are enough to characterize the small phenological changes. The combination of bistatic interferometry and Radiative

  12. A time series of TanDEM-X digital elevation models to monitor a glacier surge

    Science.gov (United States)

    Wendt, Anja; Mayer, Christoph; Lambrecht, Astrid; Floricioiu, Dana

    2016-04-01

    Bivachny Glacier, a tributary of the more than 70 km long Fedchenko Glacier in the Pamir Mountains, Central Asia, is a surge-type glacier with three known surges during the 20th century. In 2011, the most recent surge started which, in contrast to the previous ones, evolved down the whole glacier and reached the confluence with Fedchenko Glacier. Spatial and temporal glacier volume changes can be derived from high-resolution digital elevation models (DEMs) based on bistatic InSAR data from the TanDEM-X mission. There are nine DEMs available between 2011 and 2015 covering the entire surge period in time steps from few months up to one year. During the surge, the glacier surface elevation increased by up to 130 m in the lower part of the glacier; and change rates of up to 0.6 m per day were observed. The surface height dataset was complemented with glacier surface velocity information from TerraSAR-X/ TanDEM-X data as well as optical Landsat imagery. While the glacier was practically stagnant in 2000 after the end of the previous surge in the 1990s, the velocity increase started in 2011 in the upper reaches of the ablation area and successively moved downwards and intensified, reaching up to 4.0 m per day. The combination of surface elevation changes and glacier velocities, both of high temporal and spatial resolution, provides the unique opportunity to describe and analyse the evolution of the surge in unprecedented detail. Especially the relation between the mobilization front and the local mass transport provides insight into the surge dynamics.

  13. Ageing Condition Assessment of XLPE Cable Insulation Based on tanδ at 0.1 Hz%基于0.1 Hz下tanδ的XLPE电缆绝缘老化状态评估技术

    Institute of Scientific and Technical Information of China (English)

    刘英; 王林杰; 苏宇; 肖阳; 曹晓珑

    2016-01-01

    The detection technology of XLPE cable insulation has recieved more and more attention with the continuous development of power cable industry. It is an important and indispensable process of elec-trical equipment management at present for the effective assessment of cable insulation ageing condition. According to the IEEE test criteria about cable insulation diagnosis method at very low frequency (0.1 Hz), a new method was put forwarded to assess the ageing condition of XLPE insulation. The sam-ples were sliced from XLPE cable insulation layer, and the tanδ of the slice samples at 0.1 Hz were tested under different voltages, and then the voltage sensitivity was used to judge the ageing dgree of insulation. It is found that the change rule of tanδ with voltage can effectively reflect the difference of insulation ageing condition for the power cables after operating different years, and the tanδ of inner, middle, and outer insulation layers is different. The tanδ of inner and middel layers is normalized by set-ting the tanδ of outer layer as reference, and the relative value is used as a judgement basis of insula-tion ageing state. This method is an effective way for ageing condition assessment of XLPE cable insula-tions which are lack of original data.%随着电力电缆行业的持续发展,XLPE电缆绝缘检测技术受到越来越多的关注.对电缆绝缘老化状态的有效评估是当前电气设备管理一个十分重要和必不可少的过程.根据IEEE提出的有关电力电缆绝缘超低频(0.1 Hz)试验标准,提出一种对XLPE电缆绝缘分层取样,测量切片试样在0.1 Hz下的tanδ随外施电压的变化,以电压敏感度来判断绝缘老化程度的方法.通过测量不同运行年限的XLPE电缆绝缘,发现tanδ随外施电压的变化规律可以有效反映出不同运行时间绝缘老化状态的区别,绝缘内、中、外层的tanδ存在差异性.将老化电缆绝缘内层和中层的tanδ以外层tanδ测量值作

  14. New insights into the roles of host gene-necrotrophic effector interactions in governing susceptibility of durum wheat to tan spot and Septoria nodorum blotch

    Science.gov (United States)

    Tan spot and Septoria nodorum blotch (SNB) are important diseases of wheat caused by the necrotrophic fungi Pyrenophora tritici-repentis and Parastagonospora nodorum, respectively. The P. tritici-repentis necrotrophic effector (NE) Ptr ToxB causes tan spot when recognized by the Tsc2 gene. The NE To...

  15. Magnetic field stimulated enhancement of the barrier for vortex penetration in bended bridges of thin TaN films

    Energy Technology Data Exchange (ETDEWEB)

    Ilin, Konstantin, E-mail: konstantin.ilin@kit.edu; Siegel, Michael, E-mail: michael.siegel@kit.edu

    2014-08-15

    Highlights: • Critical state in mesoscopic superconducting TaN structures has been studied. • Suppression of the current crowding by magnetic field has been investigated. • Maximum of critical current of bended TaN bridges is at non-zero magnetic field. • The critical current of 90° bended bridges increases by 37% in magnetic field. • Significant bulk pinning is in ultra-thin TaN mesoscopic structures. - Abstract: An increase of the supercurrent density in the vicinity of sharp bends of mesoscopic superconducting strips (the current crowding) leads to a decrease of the potential barrier for vortex penetration and thus to a decrease of the measured critical current I{sub C} of the strip in comparison to the de-pairing critical current. However, it has been shown that the Meissner currents induced by an external magnetic field of appropriate direction reduce the effect of current crowding resulting in an increase of the measured I{sub C} of superconducting mesoscopic structures with bends. We performed a detailed experimental investigation of the dependence of critical current on magnetic field in straight and bended bridges made from thin TaN films. Indeed, in the case of bridges with bends, the critical current reaches a maximum at non-zero magnetic fields which value increases with an increase of the angle of bends.

  16. Changes in serum 25-hydroxyvitamin D and cholecalciferol after one whole-body exposure in a commercial tanning bed

    DEFF Research Database (Denmark)

    Langdahl, Jacob H; Schierbeck, Louise Lind; Bang, Ulrich Christian;

    2012-01-01

    We wanted to evaluate the cutaneous synthesis of 25OHD and cholecalciferol after one whole-body exposure to ultraviolet radiation type B (UVB) in a randomized setup. Healthy volunteers were randomized to one whole-body exposure in a commercial tanning bed with UVB emission (UVB/UVA ratio 1.......0 nmol/l per 24 h (p exposure to UVB....

  17. Bathymetric survey of water reservoirs in north-eastern Brazil based on TanDEM-X satellite data.

    Science.gov (United States)

    Zhang, Shuping; Foerster, Saskia; Medeiros, Pedro; de Araújo, José Carlos; Motagh, Mahdi; Waske, Bjoern

    2016-11-15

    Water scarcity in the dry season is a vital problem in dryland regions such as northeastern Brazil. Water supplies in these areas often come from numerous reservoirs of various sizes. However, inventory data for these reservoirs is often limited due to the expense and time required for their acquisition via field surveys, particularly in remote areas. Remote sensing techniques provide a valuable alternative to conventional reservoir bathymetric surveys for water resource management. In this study single pass TanDEM-X data acquired in bistatic mode were used to generate digital elevation models (DEMs) in the Madalena catchment, northeastern Brazil. Validation with differential global positioning system (DGPS) data from field measurements indicated an absolute elevation accuracy of approximately 1m for the TanDEM-X derived DEMs (TDX DEMs). The DEMs derived from TanDEM-X data acquired at low water levels show significant advantages over bathymetric maps derived from field survey, particularly with regard to coverage, evenly distributed measurements and replication of reservoir shape. Furthermore, by mapping the dry reservoir bottoms with TanDEM-X data, TDX DEMs are free of emergent and submerged macrophytes, independent of water depth (e.g. >10m), water quality and even weather conditions. Thus, the method is superior to other existing bathymetric mapping approaches, particularly for inland water bodies. The proposed approach relies on (nearly) dry reservoir conditions at times of image acquisition and is thus restricted to areas that show considerable water levels variations. However, comparisons between TDX DEM and the bathymetric map derived from field surveys show that the amount of water retained during the dry phase has only marginal impact on the total water volume derivation from TDX DEM. Overall, DEMs generated from bistatic TanDEM-X data acquired in low water periods constitute a useful and efficient data source for deriving reservoir bathymetry and show

  18. The Levels of Genetic Differentiation of Small-Tailed Han Sheep and Tan Sheep Populations Using Structural Loci

    Institute of Scientific and Technical Information of China (English)

    LU Sheng-xia; CHANG Hong; JI De-jun; Tsunoda Kenji; REN Zhan-jun; REN Xiang-lian; SUN Wei; YANG Zhang-ping; CHANG Guo-bin

    2006-01-01

    Using the method of "random sampling in typical colonies of the central area of the habitat" and several electrophoresis techniques, the variations of 17 structural loci encoding blood proteins in 60 Small-Tailed Han sheep and 73 Tan sheep were examined and compared with those of 14 other sheep populations in China and other countries to investigate their levels of genetic differentiation. The average heterozygosities of Small-Tailed Han sheep and Tan sheep were 0.2360 and 0.2587, respectively. The average polymorphic information content values were 0.1974 and 0.2102, respectively. The average effective numbers of alleles were 1.5723 and 1.5751, respectively. The coefficients of gene differentiation in the four groups (including 4, 6, 13, and 16 sheep populations, respectively) were 0.049323, 0.059987, 0.1728, and 0.201256,respectively, indicating that the degree of gene differentiation at the structural loci was the least in Hu sheep, Tong sheep,Small-Tailed Han sheep, and Tan sheep; followed by the above-mentioned four sheep populations and two Mongolian sheep populations; and was the highest in sheep populations belonging to the Mongolian sheep group, South Asian sheep, and European sheep. The earlier researchers' conclusions that both Small-Tailed Han sheep and Tan sheep evolved from Mongolian sheep were further verified by the results of this study. Hu sheep, Tong sheep, Small-Tailed Han sheep, and Tan sheep were decreasingly affected by the bloodline of Mongolian sheep to different degrees. The relationships among sheep populations were not closely related to the geographical distances among sheep populations.

  19. 论谭恩美与东方主义%On Amy Tan and Orientalism

    Institute of Scientific and Technical Information of China (English)

    陈学芬

    2016-01-01

    In the era of globalization, there is still Orientalism. A series of novels of Amy Tan sometimes follow Orientalism conventionality, sometimes beyond it. Besides she is influenced by the western tradition of Orientalism, reasons of follow Orientalism also have catering to the western readers’ imagination of exotic, to meet the market demand;And due to miscommunication between east and west. The reasons of surpassing Orientalism mainly include the following:one is that the identity of the Chinese American makes her learn more about what is the real east than whites;the second is Amy tan try to resist cultural hegemony, rewrite the east of her idea;the third is the desire and drive of the innovation. Only surpassing Orientalism, can we better deal with relationship between east and west, live in peace.%全球化时代,依然有东方主义。谭恩美的系列小说有时因袭东方主义,有时又超越。因袭的原因除了有受西方传统的东方主义的影响外,还有为了迎合西方读者对异域的想象,满足市场需求;以及东西方交流不畅造成的。超越东方主义的原因主要有以下几点:一是华裔的身份使她比白人更了解真实的东方究竟是什么样子;二是谭恩美试图反抗文化霸权,重写心目中的东方;三是创新的渴望和驱动。只有超越东方主义,才能更好地处理东西方关系,和平相处。

  20. TanDEM-X Across-Track Interferometry over Dry Snow Covered Terrain

    Science.gov (United States)

    Panagiotopoulou, Dimitra; Brown, Ian A.

    2016-08-01

    We analyse bistatic HH-polarised TanDEM-X interferometric synthetic aperture radar (InSAR) data acquired over winter, dry snow conditions in a sub- Arctic site in Norway. Exploiting the principles of across-track interferometry, the elevation of the scattering phase centre estimated by the phase difference between the two SAR acquisitions. Interference patterns were assessed both qualitatively and quantitatively. Clearings and forest stands, were analysed. Interferometric phase uncertainty and spatio-temporal consistency were analysed by means of scattering phase centre elevation accuracy and coherence degree, γ with respect to hydro-meteorological conditions. Clearings displayed absolute height errors of < 1 m. The sole approximation was to consider volume decorrelation effects as main source of elevation ambiguities and coherence decay. Principal Component Analysis was conducted to identify the combined influence of variables describing the radar response and scattering centre. However, the derived DEMs attained high vertical accuracy, the sub-meter height errors might relate to snowcover effects. Coherence was strongly influenced by snowpack parameters suggesting TDM coherence inversion may enable snow cover monitoring.

  1. Phenological tracking og agricultural feilds investigated by using dual polarimetry tanDEM-X images

    Science.gov (United States)

    Mirzaee, S.; Motagh, M.; Arefi, H.; Nooryazdan, A.

    2015-04-01

    Remote sensing plays a key role in monitoring and assessing environmental changes. Because of its special imaging characteristics such as high-resolution, capabilities to obtain data in all weather conditions and sensitivity to geometrical and dielectric properties of the features, Synthetic Aperture Radar (SAR) technology has become a powerful technique to detect small scale changes related to earth surface.SAR images contain the information of both phase and intensity in different modes like single, dual and full polarimetric states which are important in order to extract information about various targets. In this study we investigate phenological changes in an agricultural region using high-resolution X-band SAR data. The case study is located in Doroud region of Lorestan province, west of Iran. The purpose is to investigate the ability of copolar and interferometric coherence extracted from TanDEM-X dual polarimetry (HH/VV) in bistatic StripMap mode for tracking the phenological changes of crops during growing season. The data include 11 images acquired between 12.06.2012 and 02.11.2012 and 6 images acquired between 30.05.2013 and 04.08.2013 in the CoSSC format. Results show that copolar coherence is almost able to follow phenological changes but interferometric coherence has a near constant behaviour with fluctuations mainly related to baseline variations.

  2. 《弹歌》考论%On Tan Ge

    Institute of Scientific and Technical Information of China (English)

    杨德春

    2015-01-01

    As a literary classic,Tan Ge should be examined from a number of angles. For instance, the bow used by ancient people should have been made out of bamboo rather than wood, as it is more flexible and the primitive people’s productivity was low. Also,the corpse of the dead was much valued by ancient people,and hence predators should be driven away. It is argued that present annotators may not understand the wording in this classic correctly and that attention should be drawn to those wrong annotations.%《弹歌》之“续竹”不可作“属木”,“逐害”不可作“逐肉”,《弹歌》非为黄世歌,《弹歌》只能是后世追记或臆测古代之情况而形成之作品,而且《弹歌》的产生不会早于周代。《弹歌》的主题不是猎歌,而是孝子驱赶禽兽的悲歌。褚斌杰关于《弹歌》的高论特别值得学术界反思,几部中国文学史关于《弹歌》主题的错误论述也值得学术界反思。

  3. Variation in flavonoid levels in Citrus benikoji Hort. ex. Tan. infected by Colletotrichum gloeosporioides.

    Science.gov (United States)

    Jeong, Sung Woo; Kim, Hae Gyeong; Park, Semin; Lee, Jung Han; Kim, Yun-Hi; Kim, Gon-Sup; Jin, Jong Sung; Kwak, Youn-Sig; Huh, Moo Ryong; Lee, Ji Eun; Song, Yi; Shin, Sung Chul

    2014-04-01

    Anthracnose caused by Colletotrichum gloeosporioides is one of the most serious postharvest diseases of citrus fruit. Fruit peels infected with C. gloeosporioides and the peels of healthy fruit were analysed for flavonoids, using high performance liquid chromatography-tandem mass spectroscopy, to evaluate variations in flavonoid levels in Citrus benikoji Hort. ex. Tan. Seventeen flavonoids were characterised from the fruit peels. The flavonoids were validated using structurally related standards and quantified. Among the 17 flavonoids, the concentration of component 3 was the highest and that of component 10 was the lowest. During 8 days after inoculation, the concentration of the seven flavonoids 1-3, 5, 6, 13, and 14 increased gradually up to day 8. Flavonoid 4 was detected from day 7. The seven minor flavonoid components, 8-12, 15, and 16 increased to day 5 and then decreased. However, flavonoids level variations were not significantly different from that of the non-infected fruits during the experimental period. The monitoring suggested that the constitutively formed seven polymethoxyflavones (8-12, 15, and 16) may act as phytoanticipins in the defence mechanism against the fungus, and that hespertin 7-O-glucoside (4), produced de novo on day 6 after infection, may function as a phytoalexin.

  4. Spectrochemical Analysis of Soil around Leather Tanning Industry Using Laser Induced Breakdown Spectroscopy

    Directory of Open Access Journals (Sweden)

    Shakeel Ahmad Khan

    2013-01-01

    Full Text Available We report the use of laser induced breakdown spectroscopy (LIBS to determine the chromium contamination of soil due to effluents from leather tanning industry in Kasur District of Punjab (+31∘6′23.21″, +74∘27′16.29″ in Pakistan. Calibration curves were constructed by indigenously prepared standard sample and fitting of curves by linear regression. The limit of detection (LOD was found to be 23.71 mg kg−1. It has been found that the concentration of chromium in the soil is up to 839 mg kg−1 in vicinity of effluent drain and 1829 mg kg−1 in the area of old stagnant pool, which is much higher than the safe limits. Qualitative detection of other elements like Na, Cl, Fe, P, and Si was done from LIBS spectra. The leaching of soil contaminants due to seepage of industrial effluents from deteriorating brick lined drains in horizontal direction has also been observed.

  5. Nanomaterials for the cleaning and pH adjustment of vegetable-tanned leather

    Science.gov (United States)

    Baglioni, Michele; Bartoletti, Angelica; Bozec, Laurent; Chelazzi, David; Giorgi, Rodorico; Odlyha, Marianne; Pianorsi, Diletta; Poggi, Giovanna; Baglioni, Piero

    2016-02-01

    Leather artifacts in historical collections and archives are often contaminated by physical changes such as soiling, which alter their appearance and readability, and by chemical changes which occur on aging and give rise to excessive proportion of acids that promote hydrolysis of collagen, eventually leading to gelatinization and loss of mechanical properties. However, both cleaning and pH adjustment of vegetable-tanned leather pose a great challenge for conservators, owing to the sensitivity of these materials to the action of solvents, especially water-based formulations and alkaline chemicals. In this study, the cleaning of historical leather samples was optimized by confining an oil-in-water nanostructured fluid in a highly retentive chemical hydrogel, which allows the controlled release of the cleaning fluid on sensitive surfaces. The chemical gel exhibits optimal viscoelasticity, which facilitates its removal after the application without leaving residues on the object. Nanoparticles of calcium hydroxide and lactate, dispersed in 2-propanol, were used to adjust the pH up to the natural value of leather, preventing too high alkalinity which causes swelling of fibers and denaturation of the collagen. The treated samples were characterized using scanning electron microscopy, controlled environment dynamic mechanical analysis, and infrared spectroscopy. The analytical assessment validated the use of tools derived from colloid and materials science for the preservation of collagen-based artifacts.

  6. Resummation of tan-beta-enhanced supersymmetric loop corrections beyond the decoupling limit

    CERN Document Server

    Hofer, Lars; Scherer, Dominik

    2009-01-01

    We study the Minimal Supersymmetric Standard Model with Minimal Flavour Violation for the case of a large parameter tanbeta and arbitrary values of the supersymmetric mass parameters. We derive several resummation formulae for tanbeta-enhanced loop corrections, which were previously only known in the limit of supersymmetric masses far above the electroweak scale. Studying first the renormalisation-scheme dependence of the resummation formula for the bottom Yukawa coupling, we clarify the use of the sbottom mixing angle in the supersymmetric loop factor Delta_b. As a new feature, we find tan-beta-enhanced loop-induced flavour-changing neutral current (FCNC) couplings of gluinos and neutralinos which in turn give rise to new effects in the renormalisation of the Cabibbo-Kobayashi-Maskawa matrix and in FCNC processes of B mesons. For the chromomagnetic Wilson coefficient C_8, these gluino-squark loops can be of the same size as the known chargino-squark contribution. We discuss the phenomenological consequences ...

  7. TaN, a molecular system for probing ${\\cal{P,T}}$-violating hadron physics

    CERN Document Server

    Fleig, Timo; Kozlov, Mikhail

    2016-01-01

    All-electron configuration interaction theory in the framework of the Dirac-Coulomb Hamiltonian has been applied to the TaN molecule, a promising candidate in the search for Beyond-Standard-Model physics in both the hadron and the lepton sector of matter. We obtain in the first excited {$^3\\Delta_1$} state a ${\\cal{P,T}}$-odd effective electric field of $36.0 \\left[\\frac{\\rm GV}{\\rm cm}\\right]$, a scalar-pseudoscalar ${\\cal{P,T}}$-odd interaction constant of $32.8$ [kHz], and a nuclear magnetic-quadrupole moment interaction constant of $0.74$ [$\\frac{10^{33} {\\text{Hz}}}{e\\, {\\text{cm}}^2}$]. The latter interaction constant has been obtained with a new approach which we describe in detail. Using the same highly correlated all-electron wavefunctions with up to $2.5$ billion expansion terms, we obtain a parallel magnetic hyperfine interaction constant of $-2954$ [MHz] for the $\\rm {^{181}{T}a}$ nucleus, a very large molecule-frame electric dipole moment of $-4.91$ [Debye], and spectroscopic constants for the fo...

  8. Pyrolysis of chromium rich tanning industrial wastes and utilization of carbonized wastes in metallurgical process.

    Science.gov (United States)

    Tôrres Filho, Artur; Lange, Liséte Celina; de Melo, Gilberto Caldeira Bandeira; Praes, Gustavo Eduardo

    2016-02-01

    Pyrolysis is the thermal degradation of organic material in oxygen-free or very lean oxygen atmosphere. This study evaluates the use of pyrolysis for conversion of leather wastes from chromium tanning processes into Carbonized Leather Residues (CLR), and the utilization of CLR in metallurgical processes through the production of iron ore pellets. CLR was used to replace mineral coal in proportions of 10% and 25% on fixed carbon basis content in the mixtures for pellets preparation. Experimental conversions were performed on a pilot scale pyrolysis plant and a pelletizing reactor of the "pot grate" type. The results demonstrated the technical feasibility of using the charcoal product from animal origin as an energy source, with recovery of up to 76.47% of chromium contained in CLR in the final produced of iron ore pellets. Pellets with 25% replacement of fixed carbon in the coal showed an enhanced compressive strength, with an average value of 344kgfpellet(-1), compared to 300kgfpellet(-1) for standard produced pellets.

  9. Electroweak symmetry breaking with non-universal scalar soft terms and large tan$\\beta$ solutions

    CERN Document Server

    Olechowski, M

    1995-01-01

    We discuss radiative electroweak symmetry breaking with non-universal scalar masses at the GUT scale. Large \\tan\\beta solutions are investigated in detail and it is shown that qualitatively new (as compared to the universal case) solutions exist, with much less correlation between soft terms. We identify two classes of non-universalities which give solutions with A_o\\simeq B_o\\simeq M_{1/2}\\simeq O(M_Z), \\mu \\simeq O(0.5 m_o), m_o>>M_Z and A_o\\simeq B_o\\simeq M_{1/2} \\simeq\\mu\\simeq O(M_Z), m_o\\ge M_Z, respectively. In each case, after imposing gauge and Yukawa coupling unification, we discuss the predictions for m_t, m_b and the spectrum of supersymmetric particles. One striking consequence is the possibility of light charginos and neutralinos which in the second option can be higgsino-like. Cosmological constraint on the relic abundance of the lightest neutralino is also included.

  10. High Frequency Tan Delta Measurement Method for 132kV Transmission Underground Cables

    Directory of Open Access Journals (Sweden)

    A.R. Avinash

    2015-07-01

    Full Text Available Tangent Delta is a measurement technique to investigate cables insulation strength. Current techniques utilize Very Low Frequency (VLF at 0.1 Hz and power frequency at 50 Hz. However, high voltages are required, thus requiring larger space and cost. Proposed method of tangent delta testing utilizes High frequency Low voltage diagnoses. The phase between the current and the voltage is utilized to determine the tangent delta (tan δ. The aim of this study is to develop a low voltage high frequency tangent delta measurement method and test if it can discriminate manufactured 132 kV good conditioned cable sample from defect induced cables with void, scotched and contamination in its insulation. Impurities are clearly discriminated using this method. Comparison of Tangent Delta of cables manufactured simultaneously in good condition and defect induced is performed using High Frequency Tangent Delta method and in 50 Hz conventional method to validate the effectiveness of the measurement technique. The High Frequency AC setup utilizes a small testing environment which can sample small lengths with minimum 1 m length of cable. The small lengths will result in the reduction of total capacitance of the cable but using High Frequency induces high electric stress on XLPE layer thus resulting in measureable dielectric current.

  11. Heavy Higgs Bosons at Low $\\tan \\beta$: from the LHC to 100 TeV

    CERN Document Server

    Craig, Nathaniel; Li, Ying-Ying; Liu, Tao; Zhang, Hao

    2016-01-01

    We present strategies to search for heavy neutral Higgs bosons decaying to top quark pairs, as often occurs at low $\\tan \\beta$ in type II two Higgs doublet models such as the Higgs sector of the MSSM. The resonant production channel is unsatisfactory due to interference with the SM background. We instead propose to utilize same-sign dilepton signatures arising from the production of heavy Higgs bosons in association with one or two top quarks and subsequent decay to a top pair. We find that for heavier neutral Higgs bosons the production in association with one top quark provides greater sensitivity than production in association with two top quarks. We obtain current limits at the LHC using Run I data at 8 TeV and forecast the sensitivity of a dedicated analysis during Run II at 14 TeV. Then we perform a detailed BDT study for the 14 TeV LHC and a future 100 TeV collider.

  12. Heavy Higgs bosons at low tan β: from the LHC to 100 TeV

    Science.gov (United States)

    Craig, Nathaniel; Hajer, Jan; Li, Ying-Ying; Liu, Tao; Zhang, Hao

    2017-01-01

    We present strategies to search for heavy neutral Higgs bosons decaying to top quark pairs, as often occurs at low tan β in type II two Higgs doublet models such as the Higgs sector of the MSSM. The resonant production channel is unsatisfactory due to interference with the SM background. We instead propose to utilize same-sign dilepton signatures arising from the production of heavy Higgs bosons in association with one or two top quarks and subsequent decay to a top pair. We find that for heavier neutral Higgs bosons the production in association with one top quark provides greater sensitivity than production in association with two top quarks. We obtain current limits at the LHC using Run I data at 8 TeV and forecast the sensitivity of a dedicated analysis during Run II at 14 TeV. Then we perform a detailed BDT study for the 14 TeV LHC and a future 100 TeV collider.

  13. Aplicabilidade de indicador de qualidade subjetivo em Terapia Intensiva Aplicación de indicadores subjectivos de calidad en Terapia Intensiva Application of subjective quality indicators in Intensive Care

    Directory of Open Access Journals (Sweden)

    Sônia Regina de Oliveira e Silva de Souza

    2006-04-01

    Full Text Available Objetivamos descrever a percepção dos clientes em relação à hospitalização na Unidade de Terapia Intensiva (UTI. Desenvolvemos um estudo descritivo com abordagem qualitativa, na UTI de um hospital universitário do Rio de Janeiro, no período de maio/2003 a maio/2004. Participaram do estudo 32 clientes após alta da UTI em condição de narrar sua hospitalização. A coleta dos dados ocorreu por via de um questionário. Consideramos que os clientes demonstraram satisfação a assistência de enfermagem intensivista, o que incomoda são os estressores físicos e ambientais. O estudo aponta questões que necessitam de uma contínua discussão considerando o estresse que permeia as atividades e o ambiente da UTI e destaca a relevância do trabalho com indicadores de qualidade subjetivos em terapia intensiva.Tenemos como objetivo describir la percepión de los clientes en relación a la hospitalización en la Unidad de Cuidados Intensivos. Desarrollamos un estudio descriptivo con enfoque cualitativo en la Unidad de Cuidados Intensivos de un Hospital Universitario de Rio de Janeiro, en el periodo de mayo/2003 a mayo/2004. Participarón del estudio 32 clientes tras la alta de esta Unidad condición de narrar su hospitalización. Los datos fueron recogidos por un cuestionario. Consideramos que los clientes demostrarón satisfacción con respecto a la asistencia de enfermería intensiva y lo que les incomoda son los estreses físicos y ambientales. El estudio apunta cuestiones que necesitan una continua discusión considerando el estrés que rodea las actividades, el ambiente de la Unidade de Cuidados Intensivos y destaca la relevancia del trabajo con ondicativos de calidad subjetivos en Terapia intensiva.Our aim is to describe the clients' perception related to to the admission in the Intensive Care. We have developed a descriptive study based on a qualitative approach in the Intensive Care in a university hospital in RJ, from May, 2003 to May

  14. Validez de constructo, confiabilidad y punto de corte de la Prueba de Síntomas Subjetivos de Fatiga en trabajadores mexicanos Construct validity, reliability, and cutoff point of the Subjective Symptoms of Fatigue Test in Mexican workers

    Directory of Open Access Journals (Sweden)

    Tonatiuh Barrientos-Gutiérrez

    2004-12-01

    Full Text Available OBJETIVO: Evaluar la validez de constructo, la confiabilidad interna y establecer un punto de corte para la Prueba de Síntomas Subjetivos de Fatiga. MATERIAL Y MÉTODOS: Esta prueba fue desarrollada en Japón para medir fatiga en población trabajadora, cuenta con 30 reactivos divididos en tres esferas. La validez de constructo fue explorada por diferencias entre grupos, utilizando una población de 1 399 trabajadores de ocho empresas de la Ciudad de México que fueron estudiadas en 1999. Se utilizó como red nomológica el modelo de control-demanda de Theorell y Karasek derivando con ello hipótesis de trabajo. Los trabajadores fueron clasificados en nueve grupos dependiendo de su nivel de exigencia-control, y las diferencias en la puntuación de fatiga se derivaron mediante análisis de covarianza (ANCOVA. La confiabilidad interna se obtuvo a través del alfa de Cronbach. El punto de corte se definió a partir de la relación lineal esperada entre las exigencias laborales y la fatiga. RESULTADOS: La distribución de la puntuación en la Prueba de Síntomas Subjetivos de Fatiga resultó similar a la esperada, que aumenta conforme se incrementa la exigencia o disminuye el control. Las diferencias entre grupos fueron estadísticamente significativas. El alfa de Cronbach para la prueba en general fue de 0.89, mientras que el valor por esfera fue siempre superior a 0.70. Los puntos de corte con una correlación más estrecha fueron 6 y 7 respuestas afirmativas (r= 0.9456 y 0.9479, respectivamente. CONCLUSIONES: La puntuación observada en los distintos grupos se comporta de la forma esperada, cumpliendo así las hipótesis de desempeño planteadas. La confiabilidad interna para la prueba en general es adecuada. El punto de corte propuesto para población general es de siete respuestas afirmativas.OBJECTIVE: To evaluate the construct validity and the internal reliability of the Subjective Symptoms of Fatigue Test (SSFT, as well as to establish its

  15. Production of materials with alumina and ashes from incineration of chromium tanned leather shavings: environmental and technical aspects.

    Science.gov (United States)

    Basegio, T; Haas, C; Pokorny, A; Bernardes, A M; Bergmann, C P

    2006-09-21

    The leather tannery industry produces a significant amount of solid and hazardous wastes. Chromium-containing wastes like tanned shavings used to be incinerated in order to recover energy. The incineration process generates ashes that must be disposed of. This paper is a report on the results of the evaluation of technological properties and environmental compatibility of products made of alumina and ashes from incinerated chrome tanned shavings. The raw materials, tannery ashes and alumina were mixed together in different proportions. The ceramic bodies were molded using a hydraulic press and fired with a heating rate of 100 K/h until 1400 degrees C for 4 h in a muffle furnace. The ceramic specimens were characterized regarding physical, mechanical and thermal properties. Leaching tests, according to Brazilian, German and Dutch regulations, were performed on ceramic bodies containing different additions of ash. Results show that the ceramic materials produced are acceptable for refractory applications.

  16. APLIKASI KORELASI PEARSON DALAM MEMBANGUN MODEL TREE-AUGMENTED NETWORK (TAN (Studi Kasus Pengenalan Karakter Tulisan Tangan

    Directory of Open Access Journals (Sweden)

    Irwan Budi Santoso

    2013-10-01

    Full Text Available Langkah pertama dalam membangun model pengenalan Tree-Augmented Network (TAN  dengan  mengukur  besarnya  hubungan  diantara  pasangan  fitur  objek.  Salah  satu metode yang dapat digunakan mengukur besarnya keeratan hubungan secara linier diantara pasangan fitur adalah   Korelasi Pearson. Aplikasi Korelasi Pearson  dalam membangun model Tree-Augmented Network (TAN dalam penelitian ini, akan diujicobakan pada kasus membangun  model pengenalan karakter tulisan tangan. Data fitur karakter tulisan tangan untuk kasus ini, diasumsikan mengikuti distribusi gaussian karena estimasi parameter model pengenalannya menggunakan estimator Maximum Likelihood (ML. Hasil eksperimen dengan menggunakan data training yang terdiri dari 5 jenis karakter tulisan tangan, menunjukkan untuk dimensi fitur karakter tulisan tangan 10x30 (30 fitur, akurasi sistem Korelasi Pearson dalam membangun model TAN untuk mengenali karakter tulisan tangan  sebesar 88 %.

  17. Soybean plant growth study conducted using purified protein hydrolysate-based fertilizer made from chrome-tanned leather waste.

    Science.gov (United States)

    Pati, Anupama; Chaudhary, Rubina

    2015-12-01

    Leather processing discharges enormous amount of chrome containing leather solid waste which creates a major disposal problem. Chrome-tanned leather solid waste is a complex of collagen and chromium. The presence of chromium limits protein application in fertilizer industry. The purified protein hydrolysate with zero chromium could be used as a nitrogen source for fertilizer formulation. In this study, an attempt has been made to employ purified protein hydrolysate derived from chrome-tanned leather shavings (CTLS) in formulation of fertilizer. The formulated fertilizer (1–3 t ha(-1)) is employed as nitrogen source in production of soybean. Plant growth study demonstrates that formulated fertilizer dosage 3 t ha(-1) produced similar effects of commercial fertilizer-treated plants. Application of formulated fertilizer yielded higher seed in plant than commercial fertilizer.

  18. Large muon $(g-2)$ with TeV-scale SUSY masses for $\\tan\\beta\\to\\infty$

    CERN Document Server

    Bach, Markus; Stöckinger, Dominik; Stöckinger-Kim, Hyejung

    2015-01-01

    The muon anomalous magnetic moment $a_\\mu$ is investigated in the MSSM for $\\tan\\beta\\to\\infty$. This is an attractive example of radiative muon mass generation with completely different qualitative parameter dependence compared to the MSSM with the usual, finite $\\tan\\beta$. The observed, positive difference between the experimental and Standard Model value can only be explained if there are mass splittings, such that bino contributions dominate over wino ones. The two most promising cases are characterized either by large Higgsino mass $\\mu$ or by large left-handed smuon mass $m_L$. The required mass splittings and the resulting $a_\\mu^\\text{SUSY}$ are studied in detail. It is shown that the current discrepancy in $a_\\mu$ can be explained even in cases where all SUSY masses are at the TeV scale. The paper also presents useful analytical formulas, approximations for limiting cases, and benchmark points.

  19. Respirometric studies on the effectiveness of biogas production from wastewaters originating from dairy, sugar and tanning industry.

    Science.gov (United States)

    Debowski, M; Krzemieniewski, M; Zieliński, M; Dudek, M; Grala, A

    2013-01-01

    The objective of the present study was to determine the effectiveness of biogas production during methane fermentation of wastewaters originating from the dairy, tanning and sugar industries, by means ofrespirometric measurements conducted at a temperature of 35 degrees C. Experiments were carried out with the use of model tanks of volume 0.5 dm3. A high production yield of biogas, with methane content exceeding 60%, was achieved in the case of the anaerobic treatment of wastewaters from the dairy and sugar industries. A significantly lower effect was observed in the case of tanning wastewaters. The effectiveness of the fermentation process decreased with increasing loading of the tanks with a feedstock of organic compounds. By loading a model tank with this feedstock, the effectiveness of treatment ranged from 62.8% to 71.4% residual chemical oxygen demand for dairy wastewaters and from 57.9% to 64.1% for sugar industry wastewaters. The efficiency of organic compound removal from tanning wastewaters was below 50%, regardless of the method applied.

  20. Mitigation of naphthenate related production upsets in high TAN (Total Acid Number) crude oil

    Energy Technology Data Exchange (ETDEWEB)

    Ostojic, Nik [Maersk Oil, Copenhagen (Denmark); Vijn, Pieter; Reiners, Robert [Champion Technologies Europe BV, Delden (Netherlands)

    2012-07-01

    This paper describes a strategy for prediction, evaluation and mitigation of calcium naphthenate related production problems. Developing fields with acidic crude in the North Sea, West Africa, Bohai Bay (China) and Brazil is becoming more common in recent years. The high acid crude contains a considerable amount of naphthenic acids, typically having a Total Acid Number (TAN) higher than 0.5 mg KOH/g. Formation of either hard type 'calcium naphthenate precipitates' or soft type 'sodium carboxylate/emulsions' during crude oil production can lead to severe flow assurance and separation problems. In severe cases this may lead to production shutdowns to clean-up the equipment. A number of different naphthenate mitigation approaches have been published but no one particular approach is considered to be the most efficient as it depends significantly on the particular field conditions. Initially, this problem was addressed by deploying large volumes of (usually organic) acid, but more recently high efficiency low dose naphthenate inhibitors have been introduced. For predicting naphthenate scaling potential, methods were developed to determine the concentration of 1230 Dalton naphthenic tetra acid (ARN acids) in either deposit or crude oil and this information can be used to locate and potentially isolate the problem to a certain reservoir. Also, methods were developed to design suitable low dose naphthenate inhibitors. As these inhibitors are field tested, monitoring is required to ensure the product is performing most efficiently. In cases of tight emulsions however, this is less difficult as the oil dehydration and water quality is affected instantly. Methods were developed to allow monitoring of the calcium naphthenate deposition in field trails, thus allow trending and evaluation of the chemicals performance. After detailed analyses and discussions of the developed methods, a North Sea case history is presented reviewing several years of treating

  1. 对铬鞣过程的重新认识(续)%CHROME TANNING:exploding the perceived myths preconceptions and received wisdom

    Institute of Scientific and Technical Information of China (English)

    AnthonyD.Covington

    2002-01-01

    @@ (to be contined) 7. pH and temperature. Fixation of chrome on collagen is influenced strongly by both temperature and pH: furthermore,there is a general correlation between the amount of bound chrome and the shrinkage temperature of the tanned collagen (23). Therefore, the question is: are pH and temperature equivalent in their effects on the chrome tanning reaction?

  2. Phenotypic Plasticity through Transcriptional Regulation of the Evolutionary Hotspot Gene tan in Drosophila melanogaster.

    Science.gov (United States)

    Gibert, Jean-Michel; Mouchel-Vielh, Emmanuèle; De Castro, Sandra; Peronnet, Frédérique

    2016-08-01

    Phenotypic plasticity is the ability of a given genotype to produce different phenotypes in response to distinct environmental conditions. Phenotypic plasticity can be adaptive. Furthermore, it is thought to facilitate evolution. Although phenotypic plasticity is a widespread phenomenon, its molecular mechanisms are only beginning to be unravelled. Environmental conditions can affect gene expression through modification of chromatin structure, mainly via histone modifications, nucleosome remodelling or DNA methylation, suggesting that phenotypic plasticity might partly be due to chromatin plasticity. As a model of phenotypic plasticity, we study abdominal pigmentation of Drosophila melanogaster females, which is temperature sensitive. Abdominal pigmentation is indeed darker in females grown at 18°C than at 29°C. This phenomenon is thought to be adaptive as the dark pigmentation produced at lower temperature increases body temperature. We show here that temperature modulates the expression of tan (t), a pigmentation gene involved in melanin production. t is expressed 7 times more at 18°C than at 29°C in female abdominal epidermis. Genetic experiments show that modulation of t expression by temperature is essential for female abdominal pigmentation plasticity. Temperature modulates the activity of an enhancer of t without modifying compaction of its chromatin or level of the active histone mark H3K27ac. By contrast, the active mark H3K4me3 on the t promoter is strongly modulated by temperature. The H3K4 methyl-transferase involved in this process is likely Trithorax, as we show that it regulates t expression and the H3K4me3 level on the t promoter and also participates in female pigmentation and its plasticity. Interestingly, t was previously shown to be involved in inter-individual variation of female abdominal pigmentation in Drosophila melanogaster, and in abdominal pigmentation divergence between Drosophila species. Sensitivity of t expression to

  3. 电流互感器高电压介质损耗因数tanδ的测量%Measurement of High Voltage Dielectric Loss Factor tanδ of Current Transformer Test

    Institute of Scientific and Technical Information of China (English)

    陈志勇; 阎春雨; 张建忠

    2005-01-01

    文章对高电压下的互感器介质损耗因数测量能准确反映设备的绝缘状况进行分析,并通过实例验证高压介质损耗值能有效地判断绝缘体是否存在缺陷.因此得到现场开展tanδ-U曲线测试工作,对准确判断互感器绝缘状况有重要意义的结论.

  4. Relação do bem-estar subjetivo, estratégias de enfrentamento e apoio social em idosos Relationships of subjective well-being, coping strategies and perceived social support in the elderly

    Directory of Open Access Journals (Sweden)

    Miriam Teresa Domínguez Guedea

    2006-01-01

    Full Text Available Foram analisadas as relações das estratégias de enfrentamento, apoio social e variáveis sócio-demográficas com o bem-estar subjetivo de uma amostra de idosos. O bem-estar foi definido pela satisfação com a vida, os afetos positivos e afetos negativos. Participaram 123 idosos (média = 67,1; desvio padrão = 6,1, residentes em João Pessoa, Brasil. Análises de regressão hierárquica revelaram que (a a satisfação com a vida é maior em mulheres, nas pessoas que recebem pensão, as pessoas que estão satisfeitas com o apoio recebido, as pessoas que dão apoio aos outros e nas pessoas que enfrentam os problemas de forma direta e uma re-avaliação positiva; (b os afetos positivos aumentam com a satisfação do apoio recebido e com o enfrentamento direto e re-avaliativo e a diminuição do enfrentamento de esquiva e (c os afetos negativos diminuem ao dar apoio e aumentam com o enfrentamento de esquiva. Os resultados mostram as diferenças dos componentes cognitivo e afetivo do bem-estar e apontam a necessidade de investigar a autonomia funcional do idoso.Subjective well-being was studied in a sample of the elderly by analyzing the relationship among coping strategies, social support, and social-demographic variables. Well-being was defined by life satisfaction and positive and negative affect. There were 123 elderly participants (mean=67.1; standard deviation=6.1 who were residents in João Pessoa, Brazil. Hierarchical regression analyses revealed that (a life satisfaction is higher in: women, people who receive pensions, people who are satisfied with the support they receive, people who give support to others, and people who cope with problems directly and by re-appraising the situation in a positive way; (b positive affect increases with the satisfaction of the support received, with direct and re-appraisal coping, and with the decrease of coping by avoidance, and (c negative affect decreases with giving support and increases with

  5. CLINICAL PROFILE AND EFFICACY OF DIFFERENT MODALITIES IN THE IMPROVEMENT OF HYPERPIGMENTARY DISORDERS AND TANNED SUN EXPOSED SKIN

    Directory of Open Access Journals (Sweden)

    Mrityunjay Kumar

    2015-08-01

    Full Text Available BACKGROUND : Skin hypermelanosis is a psychologically stressful condition for modern men and women needs improvement with the help of different hypopigmentary agents. OBJECTIVE : C linical Profile and efficacy of different modalities in the Improvement of hyperpigmentary disorders and tanned Sun exposed skin. MATERIAL AND METHODS : Patients of both gender and age diagnosed with hyperpigmentary disorders were enrolled for the study. Patients were registered in to seven different groups and allocated seven modalities. RESULT : There were 129 patients (42 males and 87 females underwent the treatment and remain in follow up for three months. Maximum number of patients with hyperpigmentary disorde rs belongs to age group 21 to 30 years. Females (67.44% are more commonly affected than males (32.56%. Tanning (27.90% was the most common facial condition in which males (55.55% outnumbered females (44.45% due to more sun exposure in males. Melasma ( 23.25% was the second most common conditions. In the present study, among all the treatment modalities glycolic acid is the most s uccessful in terms of results, compliance and satisfaction of the patients. There are minimal and transient side effects and this modality can be applied to any hyperpigmentary condition for improvement of hyperpigmentary complexion. LIMITATION : Larger studies are required to further confirm the efficacy of different regimes for improvement in complexion. CONCLUSION : Tanning was most common facial condition of hyperpigmention after that melasma was second most common cause of hyperpigmention. Glycolic acid peel (35 - 50% is the most successful in terms of results, compliance and satisfaction of the patients.

  6. Mechanism of Chrome-free Tanning with Tetra-hydroxymethyl Phosphonium Chloride%四羟甲基氯化膦无铬鞣的机理

    Institute of Scientific and Technical Information of China (English)

    邵双喜; 史楷岐; 李亚; 蒋岚; 马淳安

    2008-01-01

    Tetra-hydroxymethyl phosphonium chloride (THPC) has been considered as an important chrome-free tanning agent. To understand the THPC tanning mechanism, the structure, charge distribution, activity and tanning ability of each phosphorous compound in THPC tanning system were studied, by 31P NMR, FT-IR spectroscopy, differential scanning calorimetry (DSC) and computational chemistry method, etc. When pH raised to 6.0, the decomposition of THPC would take place, which results in a production of free formaldehyde, tri-hydroxymethyl phosphonium (TrHP) and tri-hydroxymethyl phosphine oxide (TrHPO). At pH 9.0, THPC will be converted completely to TrHP and most TrHP is further oxidized into TrHPO. It is possible that, in reaction of phosphorous compounds and collagens, both P-C and C-O bonds would break simultaneously or individually. From molecular charge distribution and bond polar properties, it is deduced that, if P-C bonds break, the activity is in order of TrHPO>THPC>TrHP, whereas if C-O bonds break, the order is TrHP>THPC>TrHPO. It is more possible that P-C bonds will break in reaction with collagen, and TrHPO may be more active in the THPC tanning system. The results of tanning and DSC also prove the above conclusion. Furthermore, the fact that the shrinkage temperature of THPC tanned leather was below 70℃ when basified to pH 5.0 or lower suggests that the hydroxymethyl groups of THPC and TrHP are less possible to combine directly with amino groups of collagen.

  7. The Anti-enzymatic Hydrolysis Properties of Tanned Collagen%鞣制皮胶原的抗酶解性能研究

    Institute of Scientific and Technical Information of China (English)

    吴从喜; 张金伟; Shalbuev Dmitry; 陈武勇

    2013-01-01

    分别以不同鞣制方法、不同鞣制程度的皮胶原为对象,研究不同蛋白酶对其的酶解作用.通过对酶解溶液中羟脯氨酸和酶解后皮胶原的收缩温度以及对处理后皮胶原的显微结构观察.结果表明:植物鞣和戊二醛鞣制皮胶原比铬鞣皮胶原更能耐中性蛋白酶酶解作用;酸性蛋白酶更易酶解铬鞣皮胶原,碱性蛋白酶更易酶解植鞣皮胶原,而戊二醛鞣皮胶原具有广泛的耐酶解作用.%In this experiment, the properties of anti - enzymatic hydrolysis of three kinds of tanned collagen with different amount of tanning agents were evaluated using different kind of proteases. After the tanned leather hydrolyzed by the enzymes, the hydroxyproline concentration in the solution and the shrinkage temperature of the treated collagen were tested. It was found that the tanned collagen with the vegetable tannin and the glutaraldehyde are more resistant to hydrolysis with the neutral enzyme than chrome ones; the destructive of acidic protease on chrome tanned leather and the destructive of alkaline protease on vegetable tanned leather are more severe; also, the glutaraldehyde tanned leather has a widespread resistance to all types of enzymatic hydrolysis.

  8. Do melanoidins induced by topical 9% dihydroxyacetone sunless tanning spray inhibit vitamin d production? A pilot study.

    Science.gov (United States)

    Armas, Laura A G; Fusaro, Ramon M; Sayre, Robert M; Huerter, Christopher J; Heaney, Robert P

    2009-01-01

    We report here preliminary pilot study data of the effect of sunless tanning spray with 9% [Correction added after online publication (August 24th, 2009): The concentration of Dihydroxyacetone used in the study was 9% and not 3% as previously stated] dihydroxyacetone (DHA) on 25-hydroxyvitamin D [25(OH)D] serum levels in subjects exposed to controlled amounts of UV-B radiation during April/May in Omaha, NE, 41 degrees N latitude. We found that DHA-induced melanoidins in skin act as a topical sunscreen attenuating the formation of 25(OH)D.

  9. Charged and neutral minimal supersymmetric standard model Higgs boson decays and measurement of tan at the compact linear collider

    Indian Academy of Sciences (India)

    E Coniavitis; A Ferrari

    2007-11-01

    The minimal supersymmetric extension of the standard model (MSSM) predicts the existence of new charged and neutral Higgs bosons. The pair creation of these new particles at the multi-TeV + − compact linear collider (CLIC), followed by decays into standard model particles, were simulated along with the corresponding background. High-energy beam–beam effects such as ISR, beamstrahlung and hadronic background were included. We have investigated the possibility of using the ratio between the number of events found in various decay channels to determine the MSSM parameter tan and we have derived the corresponding statistical error from the uncertainties on the measured cross-sections and Higgs boson masses.

  10. Vivir en los márgenes: escenarios (no tan nuevos para pensar la intelectualidad del comunicador

    Directory of Open Access Journals (Sweden)

    María Natalia Saavedra

    2015-09-01

    Full Text Available El presente artículo problematiza el rol del comunicador como intelectual en relación a los procesos de apropiaciones barriales locales de la ciudad de Salta, como problemática sociocultural actual. Esto en vinculación a las posibilidades de producción de conocimiento científico ‘con los otros’ y ‘desde los márgenes’. Se parte de considerar que las sociedades del mundo actual se caracterizan por su velocidad, por lo emergente. Estas son sociedades complejas donde nada permanece y donde nada es seguro, donde las certezas se rompen. En tal realidad, donde la transformación es moneda corriente, es imprescindible problematizar el rol que han tenido, tienen y deberían tener los comunicadores como intelectuales. Teniendo en cuenta que las sociedades se modifican constantemente, en las últimas décadas tanto en el país en general, como en la provincia de Salta en particular, se han dado una serie de cambios estructurales, lo que ha desembocado en procesos de transformaciones urbanas. Ante esta realidad de crecimiento urbano, es necesario pensar en las nuevas formas de acceso a la vivienda y al papel que el estado ocupa en tal situación, para dar cuenta de cómo es que un sector de la sociedad que se considera al margen, tiene real y concreta existencia y que lucha por el reconocimiento de sus derechos básicos como ciudadanos. La vida al margen no es algo novedoso, ya que siempre ha habido personajes que han sido obligados a vivir en los márgenes, fuera de lo central, en las periferias, aludiendo a algo que se deja de lado, que se excluye. Es en este contexto, donde se problematiza la posibilidad de producción de conocimiento, ya no desde los lugares considerados tradicionales, como la academia, sino más bien desde una perspectiva alternativa, compartida con los actores sociales.

  11. Studies of obtaining and stability in aqueous medium of new complex compounds of Ti(IV) and Zr(IV) used in ecological leather tanning

    Science.gov (United States)

    Crudu, Marian; Sibiescu, Doina; Rosca, Ioan; Sutiman, Daniel; Vizitiu, Mihaela

    2009-01-01

    In this paper, the study of obtaining new coordination compounds of Ti(IV) and Zr(IV) using as ligand: D,L-β-iso-butyric acid, is presented. Also, the stability of these compounds in aqueous medium is studied. The studies of obtaining and of stability of the new compounds were accomplished in aqueous solutions using methods characteristic for coordination compounds: conductance and pH measurements. The combination ratios and the stability were determined with methods characteristic for studies in solutions. From experimental data resulted that the combination ratio of central metallic atoms with the ligand derived from D,L-β-iso-butyric acid was 1:2. From experimental data resulted that in strong acid and strong basic mediums, the coordination compounds could not be obtained. The optimal stability of the studied compounds is limited between 3-6, pH - values. This fact is in accordance with the conditions of using these compounds in ecological leather tanning. Of great importance is that these compounds were used with very good results in tanning processes of different types of leather. This fact evidenced that the ecological alternative of tanning is better than non-ecological tanning using chrome compounds. The importance of this paper consists in obtaining new coordination compounds that can be used in ecological leather tanning.

  12. La fatiga como estado motivacional subjetivo

    Directory of Open Access Journals (Sweden)

    D. Cárdenas

    2017-03-01

    No obstante, la tendencia actual es entender la fatiga como un estado motivacional complejo cuyo origen tiene lugar en numerosos procesos fisiológicos y psicológicos que sirven para regular el esfuerzo y proteger al organismo de daños graves. Los objetivos de la presente revisión narrativa son analizar los diferentes enfoques existentes para el estudio y la explicación de la fatiga, establecer el vínculo con el concepto de carga de entrenamiento y justificar la importancia de evaluar las repercusiones de la carga mental para conseguir una adecuada planificación y control del proceso de entrenamiento.

  13. Bem-estar subjetivo: aspectos conceituais

    Directory of Open Access Journals (Sweden)

    Luiza Santos Moreira da Costa

    2014-07-01

    Full Text Available It can be depicted from the analyses of publications in the topic Subjective Well-Being (SWB, that SWB/happiness is perceived as: a trait; b state; or c "being in charge of his/her own life", according to different groups of authors. The concepts described on items a and b consider SWB composed by three components: satisfaction, positive affect and negative affect, which are also presented here. The concepts described in this paper can be used alone or combined, according to the researchers proposals. SWB is a valuable guidance and may be used on several areas of research.

  14. Oncolytic and immunologic cancer therapy with GM-CSF-armed vaccinia virus of Tian Tan strain Guang9.

    Science.gov (United States)

    Deng, Lili; Fan, Jun; Guo, Mingming; Huang, Biao

    2016-03-28

    Targeted oncolytic vaccinia viruses are being developed as a novel strategy in cancer therapy. Arming vaccinia viruses with immunostimulatory cytokines can enhance antitumor efficacy. Such engineered oncolytic viruses, like JX-594, a Wyeth strain vaccinia virus modified with human granulocyte-macrophage colony-stimulating factor (GM-CSF), have shown promising results and have proceeded rapidly in clinical trials. However, the oncolytic potential of the Chinese vaccine strain Tian Tan (VTT) has not been explored. In this study, we constructed a targeted oncolytic vaccinia virus of Tian Tan strain Guang9 (VG9) expressing murine GM-CSF (VG9-GMCSF) and evaluated the antitumor effect of this recombinant vaccinia virus in a murine melanoma model. In vitro, viral replication and cytotoxicity of VG9-GMCSF was as potent as VG9; in vivo, VG9-GMCSF significantly inhibited the growth of subcutaneously implanted melanoma tumors, prolonged the survival of tumor-bearing mice, and produced an antitumor cytotoxic response. Such antitumor effect may be due to the lytic nature of virus as well as the stimulation of immune activity by GM-CSF production. Our results indicate that VG9-GMCSF induces strong tumoricidal activity, providing a potential therapeutic strategy for combating cancer.

  15. Techno-economic evaluation of membrane filtration for the recovery and re-use of tanning chemicals.

    Science.gov (United States)

    Scholz, W; Lucas, M

    2003-04-01

    The majority of pollution generated from leather manufacturing can be contributed to the inefficiency of chemical use in leather processing and to organic substances derived from the hides during processing. In particular, the overall tanning processes performed in drums can be characterized by a high consumption of water and chemicals, most of which are found in the final wastewater. To ensure full penetration and reaction of chemicals with collagen, chemicals are added in excess and are only partly up-taken by the leather. Significant savings of chemicals can be achieved by recovery and recycling of chemicals and water from part streams, thus reducing environmental impacts. This research formed an integrated approach to investigate and exploit the potential of a closed loop operation for various part streams of tanneries. Each of the process streams was separately collected, treated and purified by membrane technologies to obtain a recyclable liquor which can be re-used operationally. In this way a complete recovery of process liquors can be achieved for immediate operational re-use. Membrane technology has been applied to recover chemicals from un-hairing, vegetable tanning, chrome liquors and to polish saline part streams for re-use. By applying membrane filtration up to 90% of the treated liquors can be recovered giving a remaining concentrate volume of only 10%. The permeate obtained from several process areas contained to a high extent chemicals, which were re-used for leather processing.

  16. 40Ar/39Ar geochronological constraints on syn-orogenic strike-slip movement of Tan-Lu fault zone

    Institute of Scientific and Technical Information of China (English)

    ZHU Guang; LIU Guosheng; W. J. Dunlap; C. Teyssier; WANG Yongsheng; NIU Manlan

    2004-01-01

    Two phases of sinistral strike-slip ductile shear belts occur on the eastern margin of the Dabie orogenic belt.A muscovite 40Ar/39Ar plateau age of 128 Ma was obtained from mylonite in the later ductile shear zone. Three muscovite samples separated from mylonites of 3 localities in the earlier ductile shear belts yield 40Ar/39Ar plateau ages of 192.5±0.7 Ma, 189.7±0.6 Ma and 188.7±0.7 Ma, respectively. They are interpreted as cooling ages of the earlier sinistrai strike-slip deformation. It is suggested that left-lateral displacement of the Tan-Lu fault zone started in a late stage of the collision orogeny in the Dabie-Sulu orogenic belt between the North and South China plates. Therefore, the earlier Tan-Lu fault zone was syn-orogenic strike-slip tectonics.The fault zone was used again for sinistral displacement during tectonic activities of peri-Pacific regime in Early Cretaceous. It is proposed that the fault zone occurred as a transform fault during the orogenic process.

  17. Multi-scale kinetic surface roughening of reactive-sputtered TaN thin films characterized by wavelet transform approach

    Energy Technology Data Exchange (ETDEWEB)

    Yang, J.J., E-mail: jjyang@scu.edu.cn; Miao, F.M.; Tang, J., E-mail: tangjun@scu.edu.cn; Yang, Y.Y.; Liao, J.L.; Liu, N.

    2014-01-01

    Kinetic surface roughening of TaN thin films deposited by reactive sputtering was investigated by using atomic force microscopy. Wavelet transform method incorporating power spectrum density analysis was applied to extract the global and local surface morphologies of the films. Then the dynamical exponents of global and local surface roughening were calculated in terms of dynamic scaling theory. The results show that the kinetic surface roughening of TaN thin films exhibits multi-scale characteristics, where a set of local dynamical exponents (α{sub l} = 0.95, β{sub l} = 0.24) and global dynamical exponents (α{sub g} = 1.56, β{sub g} = 0.71) was obtained. The local surface roughening is dominated by the competition between linear surface diffusion and deposition flux noise, while the global surface roughening displays anomalous rapid-roughening behavior due to the preferred grain growth. - Highlights: • Film surface multi-scale behaviors were characterized by wavelet transform. • Microscopic mechanisms of surface multi-scale behaviors were investigated.

  18. Quasi-optical THz spectroscopy on ultra-thin superconducting films of NbN and TaN

    Energy Technology Data Exchange (ETDEWEB)

    Pracht, Uwe Santiago; Heintze, Eric; Scheffler, Marc; Dressel, Martin [1. Physikalisches Institut, University of Stuttgart (Germany); Il' in, Konstantin; Henrich, Dagmar; Guo, Qiao; Siegel, Michael [Institut fuer Mikro- und Nanoelektronische Systeme (IMS), Karlsruher Institut fuer Technologie (KIT) (Germany)

    2013-07-01

    Ultra-thin films of the conventional superconductors niobium nitride (NbN) and tantalum nitride (TaN) have recently attracted attention for devices such as single-photon detectors. Quasi-optical THz spectroscopy is a particularly suited tool with direct access to superconducting properties, such as the superconducting energy gap, which are necessary for a proper understanding of device performance and for future improvements. With our THz-spectroscopy approach we measure amplitude and phaseshift of coherent radiation (0.09-1.2 THz) passing through thin-film systems. We present the performance and possibilities of our experimental set-up, and we apply it to ultra-thin superconducting films of NbN and TaN. We fit the experimental data to weak-coupling BCS theory, and we obtain frequency- and temperature-dependent superconducting properties such as the complex optical conductivity, the complex dielectric function, the energy gap, the penetration depth, and the superfluid density.

  19. The influence of Chromium supplied by tanning and wet finishing processes on the formation of cr(vi in leather

    Directory of Open Access Journals (Sweden)

    W. F. Fuck

    2011-06-01

    Full Text Available Chromium used in leather manufacturing can be oxidized from the trivalent to the hexavalent state, causing environmental concerns. In this study, the influence of Cr(III from tanning, deacidification pH, fatliquors, chrome retanning and vegetable retanning on the formation of Cr(VI in leather was analyzed by comparing natural and aged samples. In wet-blue leather, even after aging and in fatliquored leathers that did not suffer the aging process, the presence of Cr(VI was always below the detection limit of 3 mg/kg. Considering the presence of Cr(VI, the supply of chromium during the retanning step had a more significant effect than during the tanning. In the fatliquoring process with sulfites, fish and synthetic fatliquor leather samples contained Cr(VI when aged, and the highest concentration detected was 26.7 mg/kg. The evaluation of Cr(VI formation led to recommendations for regulation in the leather industry.

  20. 论谭毅诗歌的拓扑学结构%On the Topology of Tan Yi's Poems

    Institute of Scientific and Technical Information of China (English)

    李海英

    2015-01-01

    谭毅的诗歌写作与国内当代女性诗歌写作有着极为鲜明的差异,其诗歌的重心一是致力于绘制“家族记忆”的拓扑学,以实现对当前场所精神沦丧的思考,二是致力于进行“语言”的拓扑学实验,以拓展诗歌写作的界域。用“拓扑学”的概念来从家族、记忆和语言三个方面分析谭毅的诗歌,乃是查看此种写作路向为当下诗歌写作提供的可能性以及潜在的问题。%Tan Yi's poetry writing has a very distinct difference with other contemporary female's. On one hand, she is committed to drawing the topology of family-memory for thinking about the lost of genius loci, on the other hand, she is committed to exploring the topology of language for expanding the precincts of writing. In the paper, using the concept of "topology" to analyze Tan Yi's poem from family, memory and language, to understand the value of her writing will be my motivation,also think about the problems that may exist.

  1. Stoichiometry behavior of TaN, TaCN and TaC thin films produced by magnetron sputtering

    Energy Technology Data Exchange (ETDEWEB)

    Vargas, M. [Centro de Nanociencia y Nanotecnología, Universidad Nacional Autónoma de México, A.P. 2681, C.P. 22860, Ensenada, B.C. (Mexico); Castillo, H.A. [Centro de Enseñanza Técnica y Superior, CETYS Universidad, Campus Tijuana, Tijuana, B.C. (Mexico); Restrepo-Parra, E., E-mail: erestrepopa@unal.edu.co [Universidad Nacional de Colombia Sede Medellín Colombia, Facultad de Minas, Manizales (Colombia); De La Cruz, W. [Centro de Nanociencia y Nanotecnología, Universidad Nacional Autónoma de México, A.P. 2681, C.P. 22860, Ensenada, B.C. (Mexico)

    2013-08-15

    Thin films were synthesized in a magnetron sputtering system using a target of Ta with 99.99% purity and silicon substrates (1 1 1). The gases used for the film growth were (Ar + N{sub 2}), (Ar + CH{sub 4} + N{sub 2}) and (Ar + CH{sub 4}) mixtures for TaN, TaCN and TaC, respectively. The substrate temperature increased from room temperature to 500 °C. The chemical composition and bonding configuration were examined using X-ray photoelectron spectroscopy (XPS), revealing Ta-N, Ta-C-N, Ta-C and C-C bonds. Moreover, the crystallographic structure was analyzed using X-ray diffraction (XRD), indicating the presence of (1 1 1) and (2 0 0) planes belonging to a face-centered cubic structure. The stoichiometry variation dependence on the CH{sub 4} and N{sub 2} flow was analyzed, and the influence of the substrate temperature on the coatings was investigated. Finally, scanning electron microscopy (SEM) was used to determine the evolution on the grain formation in the coatings as the substrate temperature increased.

  2. Ultraviolet spectral distribution and erythema-weighted irradiance from indoor tanning devices compared with solar radiation exposures.

    Science.gov (United States)

    Sola, Yolanda; Baeza, David; Gómez, Miguel; Lorente, Jerónimo

    2016-08-01

    Concern regarding the impact of indoor tanning devices on human health has led to different regulations and recommendations, which set limits on erythema-weighted irradiance. Here, we analyze spectral emissions from 52 tanning devices in Spanish facilities and compare them with surface solar irradiance for different solar zenith angles. Whereas most of the devices emitted less UV-B radiation than the midday summer sun, the unweighted UV-A irradiance was 2-6 times higher than solar radiation. Moreover, the spectral distributions of indoor devices were completely different from that of solar radiation, differing in one order of magnitude at some UV-A wavelengths, depending on the lamp characteristics. In 21% of the devices tested, the erythema-weighted irradiance exceeded 0.3Wm(-2): the limit fixed by the European standard and the Spanish regulation. Moreover, 29% of the devices fall within the UV type 4 classification, for which medical advice is required. The high variability in erythema-weighted irradiance results in a wide range of exposure times to reach 1 standard erythemal dose (SED: 100Jm(-2)), with 62% of devices requiring exposures of solar UV-A dose.

  3. Influence of different production strategies on the stability of color, oxygen consumption and metmyoglobin reducing activity of meat from Ningxia Tan sheep.

    Science.gov (United States)

    Gao, Xiaoguang; Wang, Zhenyu; Miao, Jing; Xie, Li; Dai, Yan; Li, Xingmin; Chen, Yong; Luo, Hailing; Dai, Ruitong

    2014-02-01

    Fifty male Ningxia Tan sheep were randomly divided into five groups (10 per group). Different feeding strategies were applied to each group for 120 days prior to slaughter. The sheep belong to five groups were pastured for 0 h (feedlot-fed), 2h, 4h, 8h, 12h per day on a natural grazing ground, respectively. M. semitendinosus muscle from Tan sheep was obtained after slaughter. Instrumental color, pH values, oxygen consumption rate, metmyoglobin reducing activity and relative metmyoglobin percentages were analyzed after 1, 3, 5, 7 and 9 days of refrigerated storage. Long-term daily grazing and herbage-based diet were conducive to maintain a lower oxygen consumption rate, higher metmyoglobin reducing activity and lower metmyoglobin accumulation. The combination of pasture-fed and feedlot-fed was conducive to weight gain, and at the same time, increased the color stability of the meat from Ningxia Tan sheep.

  4. Effects of Substrate Bias on the Hardness and Resistivity of Reactively Sputtered TaN and TiN Thin Films

    Science.gov (United States)

    Lu, Junqing; Arshi, Nishat

    2016-06-01

    TaN and TiN films are being widely used as conductive layers in electronic devices or protective coatings on metal surfaces. Among various deposition methods, reactive magnetron sputtering is preferred partly due to its ability to control the energy of the depositing ions by applying different substrate bias voltages. In this study, TaN and TiN films were deposited on Si/SiO2 substrates by using direct current magnetron sputtering technique with 370 W target power at 1.9 mTorr and under different substrate biases. The effects of the substrate bias on both the resistivity and the hardness of the deposited TaN and TiN films were investigated. The phase and composition of the deposited films were investigated by x-ray diffraction, the resistivity was measured by a four-point probe, and the hardness was obtained by nano-indentation. For TaN films, the use of substrate bias not only increased the hardness but also increased the resistivity. Moreover, the formation of the Ta3N5 phase at the -300 V substrate bias significantly increased the TaN film resistivity. For TiN films, the optimum resistivity (minimum) of 19.5 µΩ-cm and the hardness (maximum) of 31.5 GPa were achieved at the -100 V substrate bias. Since the phase changes occurred in both the TaN and the TiN films at higher substrate biases and these phase changes negatively affected the resistivity or hardness property of the films, the substrate bias should not significantly exceed -100 V.

  5. Design and methods for a cluster randomized trial of the Sunless Study: A skin cancer prevention intervention promoting sunless tanning among beach visitors

    Directory of Open Access Journals (Sweden)

    Merriam Philip

    2009-02-01

    Full Text Available Abstract Background Skin cancer is the most prevalent yet most preventable cancer in the US. While protecting oneself from ultraviolet radiation (UVR can largely reduce risk, rates of unprotected sun exposure remain high. Because the desire to be tan often outweighs health concerns among sunbathers, very few interventions have been successful at reducing sunbathing behavior. Sunless tanning (self-tanners and spray tans, a method of achieving the suntanned look without UVR exposure, might be an effective supplement to prevention interventions. Methods and Design This cluster randomized trial will examine whether a beach-based intervention that promotes sunless tanning as a substitute for sunbathing and includes sun damage imaging and sun safety recommendations is superior to a questionnaire only control group in reducing sunbathing frequency. Female beach visitors (N = 250 will be recruited from 2 public beaches in eastern Massachusetts. Beach site will be the unit of randomization. Follow-up assessment will occur at the end of the summer (1-month following intervention and 1 year later. The primary outcome is average sunbathing time per week. The study was designed to provide 90% power for detecting a difference of .70 hours between conditions (standard deviation of 2.0 at 1-year with an intra-cluster correlation coefficient of 0.01 and assuming a 25% rate of loss to follow-up. Secondary outcomes include frequency of sunburns, use of sunless tanning products, and sun protection behavior. Discussion Interventions might be improved by promoting behavioral substitutes for sun exposure, such as sunless tanners, that create a tanned look without exposure to UVR. Trial registration NCT00403377

  6. Tecendo os fios da educação ambiental: o subjetivo e o coletivo, o pensado e o vivido Weaving the threads of environmental education: the subjective and the collective, the thought and the lived

    Directory of Open Access Journals (Sweden)

    Martha Tristão

    2005-08-01

    Full Text Available O pressuposto deste ensaio é o de que, ao longo de sua trajetória, a educação ambiental foi constituindo uma narrativa que lhe é própria. Algumas palavras com sentidos conceituais polissêmicos, como natureza, participação, solidariedade, cooperação, autonomia, interdisciplinaridade e, mais recentemente, sustentabilidade, transdisciplinaridade e transversalidade, fundamentam a Educação Ambiental e fazem parte de seu léxico ou de sua rede semântica. O objetivo é analisar os campos do sentido produzidos por alguns desses termos e a trama de inter-relações entre os sujeitos e suas práticas discursivas, recusando a doutrina da unidade da razão e de um sujeito unitário em direção ao objetivo da perfeita coerência. Como a linguagem forma-se no seio de uma cultura, transita entre o individual/ coletivo, o subjetivo/ cultural, no caso da Educação Ambiental, é carregada de sentidos e de significados de um paradigma emergente, de novos modos de sensibilidades entre utopistas e utopias. É propósito entender se, de fato, a Educação Ambiental, em nome da emancipação, opõe-se ao projeto liberal de uma "razão educadora", de um conhecimento-regulação, de uma educação universal baseada em métodos universais, analisando de modo complexo a função social das narrativas generalistas e/ou denunciatórias. Foi considerado tanto o potencial positivo como os limites analíticos e estratégicos das narrativas que se manifestam de forma auto-referenciais. A preocupação central e conclusiva é: as práticas cotidianas que demandam iniciativas e encaminhamentos podem fazer sentido e criar campos de interface para o exercício de uma Educação Ambiental?The assumption behind this essay is that, throughout its history, environmental education constituted a narrative of its own. Some conceptually polysemic words such as nature, participation, solidarity, cooperation, autonomy, interdisciplinarity, and, more recently, sustainability

  7. The use of audiovisual media in adolescence and its relationship with subjective well-being: A qualitative analysis from an intergenerational and gender perspective El uso de los medios audiovisuales en la adolescencia y su relación con el bienestar subjetivo: Análisis cualitativo desde la perspectiva intergeneracional y de género

    Directory of Open Access Journals (Sweden)

    Sara Malo

    2012-11-01

    Full Text Available This paper presents the results of a qualitative research that explores, from an intergenerational and gender perspective, how the use of audiovisual media influences to personal well-being in adolescence. Three, semi-structured group interviews were used with adolescent girls (aged 12 to 18 years, and two with mothers of boys and girls of those ages. The results show that interpersonal relationships are one of the factors that greatly contribute to the adolescents’ well-being. Girls said that the use of technology generates personal well-being because it allows them to maintain interpersonal relationships with their peers. The mothers, however, question whether overuse of technology can contribute to their personal well-being. On the other hand, girls and mothers agree to comment that the use of technology hinders the relationships that adolescents have with their parents.

     

    El presente artículo expone los resultados de una investigación cualitativa que explora, desde la perspectiva intergeneracional y de género, de qué forma el uso de los medios audiovisuales influye en el bienestar subjetivo en la adolescencia. Se han realizado tres entrevistas grupales semi-estructuradas con chicas adolescentes (de 12 a 18 años y dos con madres de chicos y chicas de estas edades. Los resultados avalan una vez más que las relaciones interpersonales son uno de los factores que en mayor medida influye en el bienestar de los y las adolescentes. Las chicas manifiestan que el uso de las tecnologías audiovisuales contribuye a su bienestar subjetivo porque les posibilita mantener las relaciones interpersonales con sus iguales. Las madres, en cambio, ponen en duda que un uso excesivo de las tecnologías pueda contribuir al bienestar subjetivo. Por otra parte, chicas y madres coinciden en comentar que el uso de las tecnologías dificulta las relaciones de los adolescentes con sus progenitores.

     

  8. Hide Tanning and Its Use in Taiga: The Case of the Orochen-Evenki Reindeer Herders and Hunters of Zabaikalye (East Siberia

    Directory of Open Access Journals (Sweden)

    Donatas Brandišauskas

    2010-12-01

    Full Text Available This article documents the way in which the Orochen-Evenki hunters and herders in northern part of Zabaikalye tan hides and produce gear in the post-Soviet era. Here, I wish to present the argument that it is difficult to understand the reviving of hide tanning in remote villages and the taiga without understanding how hunters and herders in this region adapt to the unstable post-Soviet environment. I suggest that hunters and herders aim to maintain their autonomy from goods and resources imported from cities, and, in spending little effort connecting with state powers in this way, securing their lives from socio-economic constraints.

  9. The first outline of Calvin’s theology – the preface to the New Testament in the Olivétan Bible of 1535

    OpenAIRE

    2001-01-01

    The prefaces which Calvin wrote for the Bible translation of Olivétan (1535) conform to the general custom during the Reformation to translate the Bible into the vernacular and to publish these translations simultaneously with interpretation aids. In the preface published in the Olivétan Bible and preceding the New Testament translation, Calvin wants to indicate to the reader (in this case the heathen) the correct way to approach the Bible. Although no captions or headings are included, the p...

  10. Reflection of Tan sheep Industry Development of Yanchi County%对盐池滩羊产业发展的思考

    Institute of Scientific and Technical Information of China (English)

    薛菡虹

    2012-01-01

    根据盐池滩羊产业发展现状,分析了滩羊产业发展中存在的问题,提出以草定畜、科学规划、建立标准、夯实基础、市场运作的发展建议。%According to the present situation of Tan sheep development,the article analyzed the problems in Tan sheep industry.Some suggestions were put forward,including determining livestock carrying capacity according to grass,scientific planning,establishing standard,building sound foundation,as well as launching a market operation.

  11. Laser-induced fluorescence spectroscopy of TaN in free-jet: Observation of high-lying excited electronic states

    Science.gov (United States)

    Nakhate, S. G.; Mukund, Sheo; Bhattacharyya, Soumen

    2017-02-01

    Rotationally resolved excitation spectra of TaN molecules, produced in a free-jet, have been studied using laser-induced fluorescence spectroscopy. Thirteen excited electronic states in the energy region, 23,500-30,000 cm-1 have been observed. The molecular constants, Ω-quantum numbers and radiative lifetimes have been determined for these states. Because of the case (c) behavior and absence of the regular energy spacing, the assignments of the excited electronic states of TaN become difficult. The number of observed excited electronic states is significantly larger than currently predicted, indicated a need for additional ab initio calculations.

  12. Detection of hazardous pollutants in chrome-tanned leather using locally developed laser-induced breakdown spectrometer.

    Science.gov (United States)

    Nasr, M M; Gondal, Mohammed Asharf; Seddigi, Z S

    2011-04-01

    Highly toxic contaminants like Cr, As, and Pb were detected in chrome-tanning process of animal skin to produce leather by applying locally developed laser-induced breakdown spectrometer. An Nd-YAG laser with 1,064 nm wavelength was focused on the surface of leather samples (natural and manufactured) to generate a plasma spark and spectrally resolved spectra were used for identification and quantification of contaminants. The leather samples were collected from a tannery located in industrial cities of Riyadh and Jeddah, Saudi Arabia. The study was carried out on fully, half manufactured (wet blue leather), and natural hide (skin). To the best of our knowledge, this is the first attempt where laser-induced breakdown spectroscopy (LIBS) technique has been applied for the analysis of leather before and after tanning process. The maximum concentration of different elements of environmental significance like chromium, lead, arsenic, sulfur, magnesium were 199, 289, 31, 38, and 39 ppm, respectively, in one of the manufactured leather samples. The limit of detection (LOD) of our LIBS system for chromium, lead, arsenic, sulfur, and magnesium were 2, 3, 1.5,7, and 3 ppm, respectively. The safe permissible limit for tanned leather for highly toxic elements like chromium, lead, and arsenic are 1, 0.5, 0.01 ppm, respectively, as prescribed in Environmental Regulation Standards for Saudi Industries set by Royal Commission Jubail, Saudi Arabia. The LIBS technique is superior to other conventional techniques like ICP or atomic absorption that a little or no sample preparation is required, no chemicals are needed, multi-elemental analysis is possible for all kinds of samples (natural and anthropogenic materials), microgram of sample is essential, and LIBS could be applied for remote analysis. It is highly selective and sensitivity higher than ICP, and as no sample and chemicals are required, it is cost effective for multi-sample analysis per unit time as compared with other

  13. Betwixt and Between Past and Present: Cultural and Generic Hybridity in the Fiction of Amy Tan and Mary Yukari Waters

    Directory of Open Access Journals (Sweden)

    Rania Youssef

    2013-10-01

    Full Text Available Amy Tan and Mary Yukari Waters are both Asian-Americans who portray hybridity in their short stories which depict the shifting identities of the self. But do the internal categories of gender, race and ethnicity help in the coherence or do they add to the fragmentation of diverse identities? It is the dynamics of this critique of multiple identification and hybrid cultures that is being traced here in this study and how all this is reflected in narrative responses to such conditions of the examination of the self and, on a broader scale, community. The study builds on Victor Turner’s theory of liminality. Key words Hybridity, liminality, multiple identity, race, culture.

  14. Generation of a ToxA knockout strain of the wheat tan spot pathogen Pyrenophora tritici-repentis.

    Science.gov (United States)

    Moffat, Caroline S; See, Pao Theen; Oliver, Richard P

    2014-12-01

    The necrotrophic fungal pathogen Pyrenophora tritici-repentis causes tan spot, a major disease of wheat, throughout the world. The proteinaceous effector ToxA is responsible for foliar necrosis on ToxA-sensitive wheat genotypes. The single copy ToxA gene was deleted from a wild-type race 1 P. tritici-repentis isolate via homologous recombination of a knockout construct. Expression of the ToxA transcript was found to be absent in transformants (toxa), as was ToxA protein production in fungal culture filtrates. Plant bioassays were conducted to test transformant pathogenicity. The toxa strains were unable to induce necrosis on ToxA-sensitive wheat genotypes. To our knowledge, this is the first demonstration of a targeted gene knockout in P. tritici-repentis. The ability to undertake gene deletions will facilitate the characterization of other pathogenicity effectors of this economically significant necrotroph.

  15. To the question on accuracy of forest heights’ measurements by the TanDEM-X radar interferometry data

    Directory of Open Access Journals (Sweden)

    T. N. Chimitdorzhiev

    2016-08-01

    Full Text Available The paper presents the validation results of the InSAR method for determining the forest canopy height, based on TanDEM-X and ALOS PALSAR data. The research conducted on the territory of the Baikal-Kudara forest area of the Republic of Buryatia (52°10'N, 106°48'E. Forest vegetation is represented mainly by conifers – pine, and spruce, with a small admixture of deciduous trees – aspen, birch, etc. The forest vegetation height was determined by subtracting the digital elevation model (DEM of the digital terrain model (DTM. DEM is built according to the L-band (wavelength of 23.5 cm ALOS PALSAR satellite with horizontal co-polarization mode. In the investigation it was assumed that a radar signal of ALOS PALSAR passes all forest thickness and reflected from the underlying surface, made it possible to recover terrain under forest canopy. DTM has been built using the TanDEM-X data (wavelength 3 cm. In this case, it was assumed that the radar echoes scattered from a some virtual phase centers of scattering surface, which characterizes the upper limit of the continuous forest canopy. To check the accuracy of satellite definitions of forest height in study area were made high-precision geodetic measurement of trees heights using electronic total station and the coordinates of geographic control points using differential GPS receivers. The discrepancy between the satellite and ground-based measurements at 11 test sites did not exceed 2 m, which is mainly due to the difference in measurement techniques: height of individual trees by ground methods and continuous forest canopy height using radar interferometry.

  16. Poultry feed based on protein hydrolysate derived from chrome-tanned leather solid waste: creating value from waste.

    Science.gov (United States)

    Chaudhary, Rubina; Pati, Anupama

    2016-04-01

    Leather industry generates huge amount of chrome-containing leather solid waste which creates major environment problems to tanners worldwide. Chrome-tanned leather solid waste is primarily chromium complex of collagen protein. The presence of chromium limits its protein application in animal feed industry. The purified protein hydrolysate with zero chromium could be used in poultry feed. In this study, an attempt has been made to assess performance of poultry with purified protein hydrolysate as a feed derived from chrome-tanned leather waste as partial replacement of soyabean meal as a sole source of protein for growing broiler chickens. Growth study was conducted to evaluate the effect of feeding protein hydrolysate on performance and physiochemical characteristics of meat of broiler chickens. Two experimental diets containing various levels of protein hydrolysate (EI-20 % and EII-30 %) were evaluated. The comparative study was performed as control with soyabean meal. Daily feed intake, body weight gain and feed conversion ratio were measured from day 8 to day 35. At the end of the study, birds were randomly selected and slaughtered to evaluate for physiochemical characteristics of meat. Diet had significant effects on feed intake and body weight gain. Birds fed with 20 and 30 % protein hydrolysate consumed 9.5 and 17.5 % higher amount of feed and gained 6.5 and 16.6 % higher than soyabean meal-fed birds. The current study produced evidence that protein hydrolysate can replace up to 75 % of soyabean meal in broiler diets without affecting either growth performance or meat characteristics.

  17. Euroopa Liidu eelarve / Lembo Tanning, Toivo Tanning

    Index Scriptorium Estoniae

    Tanning, Lembo

    2007-01-01

    Ilmunud ka: Buhgalterskije Novosti, nr. 3, 2007, lk. 33-39. Ülevaade Euroopa Liidu eelarve moodustamise põhimõtetest ja prioriteetidest. Diagramm: Euroopa Liidu eelarve 2006-2013. Graafikud: ELi ühtekuuluvussummad 2007-2013; Eesti ühtlustustoetused 2007-2013. Tabel: Balti riikidele eraldatavad ühtlustamisfondi summad 2007-2013

  18. Maailma naftareservid / Lembo Tanning, Toivo Tanning

    Index Scriptorium Estoniae

    Tanning, Lembo

    2008-01-01

    Ilmunud ka: Buhgalterskije Novosti nr. 4 lk. 37-41. Maailmaturul jätkub toornafta hindade kasv, maailma uuritud naftavarud ja reservid. Tulevikus hakkab nafta ja selle hind paljuski määrama ühe või teise riigi majandusarengut ning sellest omakorda nende sõjalist võimsust ja poliitilist mõjuvõimu. Tabelid: Tõestatud naftavarud, 2007; Olemasolevad tõestatud naftavarud, 1986-2006. Diagrammid: 10 suuremat nafta reservidega riiki, 2007; Maailma nafta reservid, 2006

  19. Evaluating the Quality and Accuracy of TanDEM-X Digital Elevation Models at Archaeological Sites in the Cilician Plain, Turkey

    Directory of Open Access Journals (Sweden)

    Stefan Erasmi

    2014-10-01

    Full Text Available Satellite remote sensing provides a powerful instrument for mapping and monitoring traces of historical settlements and infrastructure, not only in distant areas and crisis regions. It helps archaeologists to embed their findings from field surveys into the broader context of the landscape. With the start of the TanDEM-X mission, spatially explicit 3D-information is available to researchers at an unprecedented resolution worldwide. We examined different experimental TanDEM-X digital elevation models (DEM that were processed from two different imaging modes (Stripmap/High Resolution Spotlight using the operational alternating bistatic acquisition mode. The quality and accuracy of the experimental DEM products was compared to other available DEM products and a high precision archaeological field survey. The results indicate the potential of TanDEM-X Stripmap (SM data for mapping surface elements at regional scale. For the alluvial plain of Cilicia, a suspected palaeochannel could be reconstructed. At the local scale, DEM products from TanDEM-X High Resolution Spotlight (HS mode were processed at 2 m spatial resolution using a merge of two monostatic/bistatic interferograms. The absolute and relative vertical accuracy of the outcome meet the specification of high resolution elevation data (HRE standards from the National System for Geospatial Intelligence (NSG at the HRE20 level.

  20. Wavelet based analysis of TanDEM-X and LiDAR DEMs across a tropical vegetation heterogeneity gradient driven by fire disturbance in Indonesia

    NARCIS (Netherlands)

    Grandi, De Elsa Carla; Mitchard, Edward; Hoekman, Dirk

    2016-01-01

    Three-dimensional information provided by TanDEM-X interferometric phase and airborne Light Detection and Ranging (LiDAR) Digital ElevationModels (DEMs) were used to detect differences in vegetation heterogeneity through a disturbance gradient in Indonesia. The range of vegetation types developed

  1. Production Technology Research on Cattle Upper Leather Chrome-free Tanning%黄牛鞋面革无铬鞣生产工艺研讨

    Institute of Scientific and Technical Information of China (English)

    徐达宇; 周赟; 雷明智

    2016-01-01

    选择有机膦盐鞣剂预鞣,然后采用铝鞣剂和锆鞣剂结合进行主鞣,使革身柔软,粒面平细,具有较好的复鞣、染色和加油性能。最后用收敛性强的植物鞣剂和合成鞣剂复鞣。生产过程清洁环保,成品革不含六价铬等有毒有害成分,革身柔软、丰满,粒面紧实细致,不松面,皮革感观和理化指标符合使用要求。%This paper aims at choosing organic phosphorus salt for pretanning which makes the finished leathers have good fullness and dyeing performance as well as oil-adding quality, then adopts aluminum tanning agent and zirconium tanning agent to carry out main tanning, and finally uses robust vegetable tannin and synthetic tanning agent for retanning. What's more, It is believed that it's a cleaner production process and the finished leather doesn't contain hazardous substances such as hexavalent chromium, thus makes the leather surface even and subtle, plumpy and soft, which meets the requirements of physical and chemical index.

  2. A Holistic Approach to Taxonomic Evaluation of Two Closely Related Endangered Freshwater Mussel Species, the Oyster Mussel (Epioblasma capsaeformis) and Tan Riffleshell (Epioblasma florentina walkeri) (Bivalvia: Unionidae)

    OpenAIRE

    Jones, Jess Walter

    2004-01-01

    A Holistic Approach to Taxonomic Evaluation of Two Closely Related Endangered Freshwater Mussel Species, the Oyster Mussel (Epioblasma capsaeformis) and Tan Riffleshell (Epioblasma florentina walkeri) (Bivalvia: Unionidae) by Jess W. Jones Richard J. Neves, Chairperson Fisheries and Wildlife Sciences (ABSTRACT) Primers for 10 polymorphic DNA microsatellite loci were developed and characterized for the endangered oyster mussel Epioblasma capsaeformis from the Clinch River, TN. Microsatellite...

  3. 植物鞣剂与非铬金属鞣剂结合鞣制的研究%Vegetable and Non-chromium Metal Tanning Agent Combination Tannage

    Institute of Scientific and Technical Information of China (English)

    李闻欣; 王勇

    2013-01-01

    用栲胶、铝鞣剂、钛鞣剂对浸酸猪皮进行结合鞣制,在最佳工艺的基础上,选取与铝鞣剂和钛鞣剂搭配最佳的栲胶,考察栲胶用量和改变结合鞣不同鞣制阶段pH值对Ts的影响.结果表明:使用水解类栲胶的效果一般情况下比用缩合类栲胶好,且用栗木栲胶的效果更好.在植铝钛结合鞣中,栗木栲胶用量15%,当植鞣pH值为4.8、铝鞣pH值为3.0、钛鞣pH值为1.5时,结合鞣制革的Ts达到93℃.%The pickling pigskins were tanned with vegetable tannin, aluminium tanning agent and titanium tanning agent ( self - made). On the basis of the optimum, the best collocation of tannin extracts was selected with aluminium tanning agent and titanium tanning agent. The effect of tannin extract dosage and different pH value in combination tanning process on Ts were investigated. The results show the tanning properties of the pelts by hydrolysable tannin are better than that by the condensed tannin on general circumstances, and chestnut extract tannin has a better tanning effect than other tannins. In the vegetable - alumium - titanium combination tanning process, the amount of chestnut extract is 15% , when the pH value of vegetable tannage is 4. 8, the pH value of the aluminum tannage is 3. 0, the pH value of the titanium tannage is 1. 5, the maximum Ts value of the combination tanned leather can be up to 931.

  4. LSER-based modeling vapor pressures of (solvent+salt) systems by application of Xiang-Tan equation

    Institute of Scientific and Technical Information of China (English)

    Aynur Senol

    2015-01-01

    The study deals with modeling the vapor pressures of (solvent+salt) systems depending on the linear solvation energy relation (LSER) principles. The LSER-based vapor pressure model clarifies the simultaneous impact of the vapor pressure of a pure solvent estimated by the Xiang-Tan equation, the solubility and solvatochromic parameters of the solvent and the physical properties of the ionic salt. It has been performed independently two structural forms of the generalized solvation model, i.e. the unified solvation model with the integrated properties (USMIP) containing nine physical descriptors and the reduced property-basis solvation model. The vapor pressure data of fourteen (solvent+salt) systems have been processed to analyze statistical y the reliabil-ity of existing models in terms of a log-ratio objective function. The proposed vapor pressure approaches reproduce the observed performance relatively accurately, yielding the overall design factors of 1.0643 and 1.0702 for the integrated property-basis and reduced property-basis solvation models.

  5. Por qué los mercados financieros son tan ineficientes y explotadores, y una propuesta de solución

    Directory of Open Access Journals (Sweden)

    Paul Woolley

    2010-12-01

    Full Text Available Este ensayo presenta una nueva manera de entender el funcionamiento de los mercados financieros. Su diferencia clave con la teoría convencional es que reconoce que los inversionistas no invierten directamente en valores sino a través de agentes tales como los administradores de fondos. Los agentes tienen objetivos diferentes y mejor información que sus clientes, y esta asimetría es fuente de ineficiencia: mala fijación de precios, burbujas y colapsos de Bolsa. Un resultado independiente es que los agentes pueden capturar la masa de ganancias de las innovaciones financieras. Los problemas de principal-agente ayudan a explicar por qué el sector financiero global se ha vuelto tan hipertrofiado, rentable y propenso a crisis. La acción remedial consiste en que los principales modifiquen la manera de contratar o instruir a los agentes. El ensayo termina con un manifiesto de políticas que los fondos de pensiones y otros grandes inversionistas pueden adoptar para atenuar los efectos destructivos de la delegación sobre sus beneficios individuales, y promover el bienestar social en forma de un sector financiero más esbelto, eficiente y estable.

  6. Sources and distribution of polycyclic aromatic hydrocarbons in street dust from the Chang-Zhu-Tan Region, Hunan, China.

    Science.gov (United States)

    Long, Yongzhen; Dai, Tagen; Wu, Qianhong

    2013-02-01

    Street dusts collected from 20 locations in the Chang-Zhu-Tan (Changsha, Zhuzhou, and Xiangtan) region, Hunan, China, in May to July 2006, were investigated for sources of polycylic aromatic hydrocarbons (PAHs). The individual PAH concentrations were in the range of 10-4316 ng g(-1), and ∑PAHs(16) levels were in the range of 3,515-24,488 ng g(-1), with a mean of 8,760 ng g(-1). The high-molecular-weight PAHs (four to six rings), ranging from 47.51 to 82.11 %, with a mean of 74.79 %, were the dominant PAH compounds in almost all of the dusts. The isomer ratios suggested a rather uniform mixture of coal combustion and petroleum PAH sources. Factor analysis and multiple linear regression analysis indicate that the main sources of the 16 PAHs were coal combustion/vehicle exhaust, coking/petroleum, and plant combustion, with contribution rates of 50.9, 35.01, and 14.08, respectively. The spatial distributions of PAH concentrations were significantly related to the distribution of industries, traffic circulation, and farmland in this region.

  7. Catchment properties in the Kruger National Park derived from the new TanDEM-X Intermediate Digital Elevation Model (IDEM)

    Science.gov (United States)

    Baade, J.; Schmullius, C.

    2015-04-01

    Digital Elevation Models (DEM) represent fundamental data for a wide range of Earth surface process studies. Over the past years the German TanDEM-X mission acquired data for a new, truly global Digital Elevation Model with unpreceded geometric resolution, precision and accuracy. First processed data sets (i. e. IDEM) with a geometric resolution of 0.4 to 3 arcsec have been made available for scientific purposes. This includes four 1° x 1° tiles covering the Kruger National Park in South Africa. Here we document the results of a local scale IDEM validation exercise utilizing RTK-GNSS-based ground survey points from a dried out reservoir basin and its vicinity characterized by pristine open Savanna vegetation. Selected precursor data sets (SRTM1, SRTM90, ASTER-GDEM2) were included in the analysis and highlight the immense progress in satellite-based Earth surface surveying over the past two decades. Surprisingly, the high precision and accuracy of the IDEM data sets have only little impact on the delineation of watersheds and the calculation of catchment size. But, when it comes to the derivation of topographic catchment properties (e.g. mean slope, etc.) the high resolution of the IDEM04 is of crucial importance, if - from a geomorphologist's view - it was not for the disturbing vegetation.

  8. A review on management of chrome-tanned leather shavings: a holistic paradigm to combat the environmental issues.

    Science.gov (United States)

    Pati, Anupama; Chaudhary, Rubina; Subramani, Saravanabhavan

    2014-10-01

    Raw hide/skins come to the tanners as a by-product of meat industry which is converted into value-added leather as product for fashion market. Leather manufacturing is a chemical process of natural biological matrix. It employs a huge quantity of water and inorganic and organic chemicals for processing and thereby discharges solid and liquid wastes into the environment. One of the potential solid wastes generated from leather industry is chrome-tanned leather shavings (CTLSs), and its disposal is increasingly becoming a huge challenge on disposal to tanners due to presence of heavy metal chromium. Hence, finding a sustainable solution to the CTLS disposal problem is a prime challenge for global tanners and researchers. This paper aims to the deeper review of various disposal methods on CTLS such as protein, chromium, and energy recovery processes and its utilization methodologies. Sustainable technologies have been developed to overcome CTLS solid wastes emanating from leather processing operations. Further, this review paper brings a broader classification of developed methodologies for treatment of CTLSs.

  9. Immunogenicity analysis following human immunodeficiency virus recombinant DNA and recombinant vaccinia virus Tian Tan prime-boost immunization.

    Science.gov (United States)

    Liu, Cunxia; Du, Shouwen; Li, Chang; Wang, Yuhang; Wang, Maopeng; Li, Yi; Yin, Ronglan; Li, Xiao; Ren, Dayong; Qin, Yanqing; Ren, Jingqiang; Jin, Ningyi

    2013-06-01

    This study assessed and compared the immunogenicity of various immunization strategies in mice using combinations of recombinant DNA (pCCMp24) and recombinant attenuated vaccinia virus Tian Tan (rddVTT-CCMp24). Intramuscular immunization was performed on days 0 (prime) and 21 (boost). The immunogenicity of the vaccine schedules was determined by measuring human immunodeficiency virus (HIV)-specific binding antibody levels and cytokine (interleukin-2 and interleukin-4) concentrations in peripheral blood, analyzing lymphocyte proliferation capacity against HIV epitopes and CD4(+)/CD8(+) cell ratio, and monitoring interferon-gamma levels at different times post-immunization. The results showed that pCCMp24, rddVTT-CCMp24 and their prime-boost immunization induced humoral and cellular immune responses. The pCCMp24/rddVTT-CCMp24 immunization strategy increased CD8(+) T cells and induced more IFN-γ-secreting cells compared with single-shot rDNA. The prime-boost immunization strategy also induced the generation of cellular immunological memory to HIV epitope peptides. These results demonstrated that prime-boost immunization with rDNA and rddVTT-CCMp24 had a tendency to induce greater cellular immune response than single-shot vaccinations, especially IFN-γ response, providing a basis for further studies.

  10. Kedi Enfeksiyonları 1: Zorlayan Tanı Kedilerin Enfeksiyöz Peritonitisi "Infectious of Feline 1: A challenging diagnosis; Feline Infectious Peritonitis"

    OpenAIRE

    AYTUĞ, Nilüfer

    2008-01-01

    Feline infectious peritonitis (FIP) kedi koronaviruslerinin (FCoV) virulent ve mutant bir formu tarafından oluşturulan, sistemik bir hastalıktır. Genç kedilerdeki en önemli ölüm nedeni olduğu bildirilmektedir. Bu virusun mutantı olduğu koronavirusler (FCoV), genellikle patojenik değildirler ya da bazı olgularda sadece hafif ishale neden olabilirler. Bu iki suş, birbirlerinden morfolojik ya da antijenik olarak ayrılamazlar. Bu nedenle FIP’in tanısı çok zordur. Olası tanı, klinik bulgular ve ba...

  11. "Reposo en cama": algo mas que una sencilla terapia

    Directory of Open Access Journals (Sweden)

    Porras Janeth

    1991-12-01

    Full Text Available

    Se ha coincidido en afirmar que es muy agradable y reconfortante caminar tranquilamente en una mañana soleada o hacer ejercicio al aire libre y que esto trae positivos efectos sobre la salud física y mental; como también que es muy agradable tener un período de descanso después de una agotadora jornada de trabajo. Es precisamente esta alternancia entre períodos de actividad y períodos de descanso, lo que permite un óptimo equilibrio fisiológico de cada uno y del conjunto de los sistemas de la economía. Sin embargo, esta no es precisamente la situación de las personas que por diversas situaciones o alteraciones; tales como enfermedades cardiovasculares,  neurológicas, respiratorias, traumas y limitaciones propias de la edad avanzada; voluntaria o involuntariamente disminuyen su actividad física y permanecen medianos o prolongados períodos de reposo en cama; no solamente como ayuda terapéutica para lograr su recuperación, sino como forma de prevenir nuevas crisis o complicaciones.

  12. "reposo en cama": algo mas que una sencilla terapia

    OpenAIRE

    Porras Janeth

    2010-01-01

    Se ha coincidido en afirmar que es muy agradable y reconfortante caminar tranquilamente en una mañana soleada o hacer ejercicio al aire libre y que esto trae positivos efectos sobre la salud física y mental; como también que es muy agradable tener un período de descanso después de una agotadora jornada de trabajo. Es precisamente esta alternancia entre períodos de actividad y períodos de descanso, lo que permite un óptimo equilibrio fisiológico de cada uno y del conjunto de los siste...

  13. Todo corre, mucho fluye, algo permanece. Cambio y estabilidad sociales

    Directory of Open Access Journals (Sweden)

    Maritza Montero

    2003-01-01

    Full Text Available Desde una perspectiva psicosocial se aborda un problema presente en las ciencias sociales: por qué los cambios sociales no ocurren cuando se los espera, por qué se dan inesperadamente. Se señala cómo en la psicología social: 1 ha predominado una concepción del cambio social naturalizada por el sentido común, según la cual la sociedad es esencialmente dinámica y los cambios sociales se “sienten” simultáneamente en todos los ámbitos sociales; 2 se señala el aspecto perturbador del cambio; 3 Se muestra su carácter fundamentalmente individual. El análisis crítico de esta situación se organiza en torno a las siguientes preguntas problematizadoras: ¿Por qué a pesar de las “revoluciones” algunas cosas no cambian? ¿Por qué se cristalizan los logros “revolucionarios”? ¿Cómo es que a pesar del autoritarismo y la represión se producen cambios? Dicho análisis se enfoca desde las nociones de habitus y de reducton social, considerando aspectos tales como el tempo psicológico, el tempo institucional, el tempo histórico para hacer una construcción de los procesos que pueden llevar a las transformaciones insensibles, los cambios dolorosos, las permanencias insufribles y los mantenimientos confortables

  14. First-principles study of the charge transfer and evolution of Si doping 2N2Ta islands adsorption on TaN (001) surfaces

    Science.gov (United States)

    Ren, Yuan; Zhang, Honglv; Zhang, Chao; Zeng, Haiqing; Liu, Xuejie

    2017-01-01

    The separation and aggregation of Si atoms around TaN grains during deposition of Ta-Si-N nanocomposite films were studied, and the adsorption energies, charge transfer and atomic partial density of state of Si-2N2Ta islands on the TaN (001) surface and diffusion energy of the islands during their evolution were evaluated using the first-principles method based on density functional theory (DFT). In the lowest total energy stable configuration, N and Ta atoms tended to combine to form 2N2Ta islands, whereas Si atoms tended to stay at a position diagonal to the Ta atom outside of the island. Si atoms entered the position of the missing N atom of the TaN island and formed a substitute solid solution during Ta-Si-N growth. The Si atoms of the solid solution in the island could be easily extruded by Ta- or N-rich island during the deposition process. The process of Si atom extrusion by a N atom which was the configuration of N-by-2Ta1N1Si island evolved into Si-by-2N2Ta island in rich N-atom. The process of Si atom was extruded by the Ta atom which was the configuration of Ta-by-2N1Ta1Si island evolved into Si-of-2Ta2N island, that reduced the total energy of island. The diffusion energies of these evolutions were 0.974 and 1.712 eV, respectively. The Si atoms and TaN grain phase tended to separate during the deposition process. Si atoms could give way to Ta and N atoms during the Ta-Si-N nanocomposite film deposition process.

  15. “UNER TAN SYNDROME” IN TWO TURKISH FAMILIES IN RELATION TO DEVOLUTION AND EMERGENCE OF HOMO ERECTUS: NEUROLOGICAL EXAMINATION, MRI AND PET SCANS

    OpenAIRE

    TAN, Prof. Dr. Üner; PENÇE, Dr. Sadrettin; YILMAZ, Dr. Mustafa; ÖZKUR, Dr. Ayhan; KARACA, Dr. Sibel; TAN, Dr. Meliha; KARATAŞ, Dr. Mehmet

    2006-01-01

    “Uner Tan Syndrome” consists of two main symptoms: quadrupedal gait and primitive cognitive abilities including language and conscious experience. To assess the central mechanisms involved in this syndrome, we performed MRI and PET scans on affected and unaffected individuals from both families. All affected individuals were also subjected to neurological examination. To assess the integrity of the peripheral and central vestibular system, Barany’s caloric test was applied to the affected ind...

  16. Sub-acute Toxicity Study of Tiger Milk Mushroom Lignosus tigris Chon S. Tan Cultivar E Sclerotium in Sprague Dawley Rats

    OpenAIRE

    Shin Yee Fung; Boon Hong Kong; Nget Hong Tan; Jayalakshmi Pailoor

    2016-01-01

    Lignosus also known as Tiger Milk Mushroom, is classified in the family Polyporaceae and mainly consumed for its medicinal properties in Southeast Asia and China. The sclerotium is known as the part with medicinal value and often used by the natives to treat a variety of ailments. Lignosus tigris Chon S. Tan, one of the species of the Malaysia Tiger Milk mushroom, has recently been successfully cultivated in laboratory. Earlier studies have demonstrated the L. tigris cultivar E sclerotia exhi...

  17. Preparation of Chrome Tanning Agent Using Sodium Lignosulfonate as Reducing Agent%木质素磺酸钠作还原剂制备铬鞣剂

    Institute of Scientific and Technical Information of China (English)

    彭洲; 廖学品; 石碧

    2011-01-01

    利用木质素磺酸钠作为还原剂制备了铬鞣剂Cr-LGS.通过UV-Vis、FT-IR和碱法滴定等方法探讨了这类铬鞣剂的化学组成和耐碱稳定性,并且比较了自制铬鞣剂Cr-LGS与糖还原的商品铬鞣剂的组成差异和性质区别.结果表明,木质素磺酸钠是一类理想的Cr(Ⅵ)还原剂.用其制备的铬鞣刺在不外加蒙囿剂的情况下已具有良好的自蒙囿作用.较系统地研究了铬鞣剂Cr-LGS的优化制备条件.%A new chrome tanning agent, Cr - LGS, was prepared by using sodium lignosulfonate as the reducing agent.The chemical composition and alkaline resistance of Cr - LGS were investigated by UV - Vis spectrum, FT - IR spectrum and alkaline titration. Meanwhile the differences of composition and property between Cr - LGS and the commercial chrome tanning agent using sugar as reducing agent were compared. It was proved that sodium lignosulfonate is an ideal reducer for Cr( Ⅵ), and the newly prepared chrome tanning agent possesses satisfactory self - masking behavior without addition of other masking agent. The conditions for preparation of sodium lignosulfonate reduced chrome tanning agent were optimized.

  18. Üstün Zekâlılar: Özellikleri, Tanılanmaları, Eğitimleri (KİTAP İNCELEMELERİ

    Directory of Open Access Journals (Sweden)

    Şule Demirel

    2013-06-01

    Full Text Available “Üstün Zekâlılar: Özellikleri, Tanılanmaları, Eğitimleri” adlı yenilenmiş ikinci basım olan bu kitap; üstün zekâ tanımları ve tarihçesi, üstün zekâ kuramları, üstün zekâlıların özellikleri ve gelişimleri, tanılama, eğitim stratejileri, müfredat tasarımı ve müfredat modelleri, eğitim prog-ramı tasarımı, program değerlendirmesi, sosyal-duyuşsal-akademik konular ve rehberlik, üs-tün zekâlı öğrencilerin öğretmenleri olmak üzere on bölümden oluşmaktadır.

  19. Evaluation of phototoxic and photogenotoxic risk associated with the use of photosensitizers in suntan preparations: application to tanning preparations containing bergamot oil.

    Science.gov (United States)

    Moysan, A; Morlière, P; Averbeck, D; Dubertret, L

    1993-01-01

    Bases for the elaboration of a standardized protocol are proposed for studying phototoxic effects of skin tanning preparations containing photosensitizing agents. The experimental procedure includes in vivo phototoxicity tests, evaluation of the photogenotoxic risk and determination of the photosensitizer concentration in plasma after topical application. This procedure was carried out with tanning preparations containing a well-known photosensitizer, 5-methoxypsoralen, as a component of bergamot oil. The whole study has been performed using topical application of the commercial suntan product, i.e. containing the sunscreens and all other components. Whereas the exposure to solar simulated radiation never triggered any phototoxic response, a photosensitizing effect was observed for skin type I volunteers exposed to high doses of ultraviolet A. The transepidermal penetration resulted in a 5-methoxypsoralen concentration of 1-4 ng/ml in the suction blister fluid. The photogenotoxicity of this suction blister fluid containing 5-methoxypsoralen and also other ingredients of the tanning preparation was assayed on yeast cells and was found to be rather low. 5-Methoxypsoralen was also detected in plasma after repeated applications but at low concentrations (about 1 ng/ml) which do not present a potential risk for systemic ocular effects.

  20. TaN interface properties and electric field cycling effects on ferroelectric Si-doped HfO2 thin films

    Science.gov (United States)

    Lomenzo, Patrick D.; Takmeel, Qanit; Zhou, Chuanzhen; Fancher, Chris M.; Lambers, Eric; Rudawski, Nicholas G.; Jones, Jacob L.; Moghaddam, Saeed; Nishida, Toshikazu

    2015-04-01

    Ferroelectric HfO2-based thin films, which can exhibit ferroelectric properties down to sub-10 nm thicknesses, are a promising candidate for emerging high density memory technologies. As the ferroelectric thickness continues to shrink, the electrode-ferroelectric interface properties play an increasingly important role. We investigate the TaN interface properties on 10 nm thick Si-doped HfO2 thin films fabricated in a TaN metal-ferroelectric-metal stack which exhibit highly asymmetric ferroelectric characteristics. To understand the asymmetric behavior of the ferroelectric characteristics of the Si-doped HfO2 thin films, the chemical interface properties of sputtered TaN bottom and top electrodes are probed with x-ray photoelectron spectroscopy. Ta-O bonds at the bottom electrode interface and a significant presence of Hf-N bonds at both electrode interfaces are identified. It is shown that the chemical heterogeneity of the bottom and top electrode interfaces gives rise to an internal electric field, which causes the as-grown ferroelectric domains to preferentially polarize to screen positively charged oxygen vacancies aggregated at the oxidized bottom electrode interface. Electric field cycling is shown to reduce the internal electric field with a concomitant increase in remanent polarization and decrease in relative permittivity. Through an analysis of pulsed transient switching currents, back-switching is observed in Si-doped HfO2 thin films with pinched hysteresis loops and is shown to be influenced by the internal electric field.

  1. Dispersiones acuosas de poliuretano bloqueado: una alternativa como agente curtiente Aqueous dispersions of blocked polyurethane: an alternative as tanning agents

    Directory of Open Access Journals (Sweden)

    José Luis Mata-Mata

    2008-06-01

    Full Text Available Se sintetizaron y se evaluaron como agentes curtientes de pieles vacunas dos tipos de agentes de reticulación base poliuretano bloqueado. Se presentan los resultados de la síntesis de dispersiones acuosas de poliuretano bloqueado (DPU’s, basadas en prepolímeros a partir de la reacción de los diisocianatos alifáticos H12MDI (4,4’ metilenbis-ciclohexilisocianato y HDI (hexametilendiisocianato con polioles base poliéter óxido de etileno de peso molecular 1 y 2 KDa, en una relación molar isocianato/oxhidrilo (NCO/OH de 4:1 y 6:1 a 100 °C por 2 y 4 horas. En una segunda reacción, los grupos isocianato (NCO libres del prepolímero se bloquearon con una solución acuosa de NaHSO3 ó Na2S2O5 al 40%p/p. Los prepolímeros se caracterizaron mediante espectroscopia IR y RMN de ¹H. El tanto por ciento de isocianato libre en el prepolímero, así como el bloqueo de dichos grupos, se determinaron por espectroscopía IR. La evaluación de la capacidad curtiente de las DPU’s se determinó de acuerdo a la estabilidad térmica de la piel (temperatura de desnaturalización, mediante Calorimetría Diferencial de Barrido (DSC y a la determinación del índice de reticulación de las DPU’s con la colágena de la piel mediante un ensayo con ninhidrina.Two types of crosslinking agents blocked polyurethanes were synthesized and evaluated as tanning agents of bovine skins. The results of the synthesis of aqueous dispersions of blocked polyurethane (DPU’s are presented. They were based on prepolymers from the reaction of the aliphatic diisocyanates H12MDI 4,4’-methylenebis(cyclohexyl isocyanate and HDI (hexamethylene diisocyanate with HO-polyols such as polyethylene oxide of molecular weight 1 and 2 kDa. The molar NCO/OH ratio was fixed in 4:1 or 6:1, at 100 °C and 2 or 4 hours for the reaction time. In a second reaction, the prepolymer containing terminal NCO groups were blocked by reaction with an aqueous NaHSO3 or Na2S2O5 solution to 40% w/w. The

  2. Histerektomi endikasyonları ve histopatolojik tanıların dağılımı

    Directory of Open Access Journals (Sweden)

    Seda Keskin

    2013-09-01

    Full Text Available Amaç. Kliniğimizde gerçekleştirilen histerektomi operasyonlarının klinik endikasyonlarını incelemek ve histerektomi materyallerindeki histopatolojik tanıları ortaya koymaktır. Yöntem. Ocak 2010-Ocak 2013 tarihleri arasında gerçekleştirilen 223 total abdominal histerektomi olgusu retrospektif olarak incelendi. Yaş, menapozal durum, operasyon endikasyonu, yapılan operasyonun bilgileri ve elde edilen materyalin patolojik inceleme sonuçları analiz edildi. Bulgular. Çalışmaya alınan hastaların yaş ortalaması 49,3±5,4 olarak saptandı. Tüm vakalara total abdominal histerektomi uygulanmıştı. Hastaların %76,2’sine bilateral ooferektomi, %17,4’üne tek taraflı ooferektomi, %6,2’sine ise sadece histerektomi uygulanmıştı. Hastaların %19,2’si menapoz olarak değerlendirildi. Histerektomi endikasyonlarımız arasında en sık izlenen 138 hasta (%61,8 ile myoma uteri idi. Diğer endikasyonlar ise sırasıyla 38 hasta (%17 ile disfonksiyone uterin kanama, 37 hasta (%16,5 ile adneksiyel kitle, 10 hasta (%4,4 ile pelvik organ prolapsusu idi. Histerektomi materyallerinin histopatolojik incelemesi sonucunda, en yaygın tanımlanan patolojiler sırasıyla %68,1; %37,2; %18,8 oranlarıyla leiomyom, adenomyozis ve overyan/paraoveryan kist olarak belirlendi. En sık görülen kombinasyon %15,2 ile leiomyom ve adenomyozis kombinasyonuydu. Ayrıca 19 hastada (%8,5 endometrial polip, 15 hastada (%6,7 endometrial hiperplazi, 11 hastada (%4,9 atrofik endometrium, 4 hastada (%1,7 servikal intraepitelyal neoplazi, 3 hastada (%1,3 endometrium kanseri saptandı. Sonuç. Çalışmamızda en sık histerektomi endikasyonu literatürdeki gibi myoma uteri olarak saptandı. Histopatolojik inceleme sonucunda ise en sık leiomyom ve adenomyozis saptandı. Menometroraji/pelvik ağrı şikayeti ile başvuran ve özellikle myoma uterisi olan hastalarda eşlik eden adenomyozis olabileceği akılda tutulmalıdır. Fertilitesini tamamlam

  3. Challenge of urban sewage disposal in a karst region: Mérida, Yucátan, Mexico

    Science.gov (United States)

    Perry, E. C.; Villasuso, M.

    2013-05-01

    Four hydrogeologic factors influence urban sewage management on the northern Yucátan (Mexico) Peninsula: 1) lack of rivers capable of transporting and/or oxidizing sewage, 2) near-surface flat-lying, porous, permeable limestone and dolomite with shallow layers of variable permeability but without major subsurface aquitards, 3) rapid groundwater transmission, penetration of seawater inland beneath a fresh water lens, and a flat water table only a few meters below land surface and controlled by sea level, 4) near absence of soil cover. Mérida, Yucátan (population approaching one million, approximately the world's 450th most populous city) has no central sewage system. The water table beneath the city is consistently only 7-9 m below land surface, and the 40 m-thick fresh water lens, which is the sole source of municipal, industrial, and agricultural water, directly overlies a marine intrusion of modified seawater composition. The old city has an estimated 130,000 drains feeding untreated household waste directly into the permeable karst aquifer. Numerous storm drains send street runoff directly to the aquifer. In addition, industries, hotels, and some subdivisions have unmonitored injection wells that pump untreated wastewater into the underlying saline intrusion. Some injection wells have flow problems possibly because of low aquifer permeability within the saline intrusion. Deep injection is also problematic because density contrast with saline intrusion water can produce a gravity imbalance, and high sulfate water can react with organic waste to produce H2S. Some city water supply wells are reportedly affected by inflation of the water table beneath the city, by local upconing of saline water, and by nitrate contamination. Paradoxically, Mérida with an abundant, easily contaminated source of fresh water, lacks streams to transport sewage off-site, and thus shares some water supply/sewage treatment problems with cities in arid regions. Recently, compact

  4. Comparison of the replication characteristics of vaccinia virus strains Guang 9 and Tian Tan in vivo and in vitro.

    Science.gov (United States)

    Zhu, Rong; Liu, Qiang; Huang, Weijin; Yu, Yongxin; Wang, Youchun

    2014-10-01

    Vaccinia virus is widely used as a vector in the development of recombinant vaccines. Vaccinia virus strain Guang 9 (VG9), which was derived from vaccinia virus strain Tian Tan (VTT) by successive plaque-cloning purification, was more attenuated than VTT. In this study, the host cell range and the growth and replication of VG9 were compared with those of VTT. The results showed that both VG9 and VTT could infect permissive cells (Vero, TK-143 and CEF) and semipermissive cells PK (15) and induced a visible cytopathic effect (CPE). Both strains could infect nonpermissive CHO-K1 cells but neither was able to reproduce. The replicative ability of VG9 was a little lower than that of VTT. Additionally, recombinant vaccinia viruses containing a firefly luciferase gene (VG9-L and VTT-L) were constructed, and their expression in vitro and replication and spread in vivo were compared. The expression ability of VG9-L was lower than that of VTT-L. Whole-animal imaging data indicated that VG9-L could reproduce quickly and express the exogenous protein at the site of inoculation, regardless of whether the intramuscular, intracutaneous, subcutaneous or celiac inoculation route was used. VG9-L was better in its ability to express a foreign protein than VTT-L, but the time during which expression occurred was shorter. There was no dissemination of virus in mice inoculated with either strain. In summary, this study demonstrates the possibility of using VG9 for the production of smallpox vaccines or the construction of recombinant vaccinia virus vaccines.

  5. Seasonal effects on the estimation of height of boreal and deciduous forests from interferometric TanDEM-X coherence data

    Science.gov (United States)

    Olesk, Aire; Voormansik, Kaupo; Tamm, Tanel; Noorma, Mart; Praks, Jaan

    2015-10-01

    The aim of this study is to assess the performance of single-pass X-band bistatic SAR interferometric forest height estimation of boreal and temperate deciduous forests under variable seasonal conditions. For this, twelve acquisitions of single- and dual-polarized TanDEM-X coherence images over 118 forest stands were analyzed and compared against LiDAR forest height maps. Strong correlations were found between interferometric coherence magnitude and LiDAR derived forest stand height for pine forests (r2=0.94) and spruce forest (r2=0.87) as well as for deciduous trees (r2=0.94) during leaf-off conditions with temperatures below 0°C. It was found that coherence magnitude based forest height estimation is influenced by leaf-on and leaf-off conditions as well as daily temperature fluctuations, height of ambiguity and effective baseline. These factors alter the correlation and should be taken into account for accurate coherence-based height retrieval. Despite the influence of the mentioned factors, generally a strong relationship in regression analysis between X-band SAR coherence and LiDAR derived forest stand height can be found. Moreover, a simple semi empirical model, derived from Random Volume over Ground model, is presented. The model takes into account all imaging geometry dependent parameters and allows to derive tree height estimate without a priori knowledge. Our results show that X-band SAR interferometry can be used to estimate forest canopy height for boreal and deciduous forests in both summer and winter, but the conditions should be stable.

  6. Effect of Xiao-tan-jie-yu Prescription on sleep quality of soldiers acute exposure to high altitude

    Directory of Open Access Journals (Sweden)

    Yu-xing YANG

    2016-10-01

    Full Text Available Objective  To observe the efficacy of Xiao-tan-jie-yu prescription (XTJYF on sleep quality of the soldiers who acutely exposed to western area of high altitude. Methods  In this prospective, completely randomized, parallel, placebo-controlled study, 550 soldiers acutely exposed to western area of high altitude were investigated by the Pittsburgh Sleep Quality Index (PSQI, 100 soldiers with sleep disorder were selected and divided into two groups (50 each: treatment group received TCM XTJYF therapy and control group was treated with placebo. After 2 weeks' treatment, PSQI total score and respective factor scores before and after treatment were assessed, and clinical therapeutic efficacy and adverse reactions were observed. Results  The PSQI total score and respective factor scores of these soldiers were significantly higher than those of normal adults, but significantly lower than those of insomnia patients, while their sleep disorder factor score was significantly higher compared with insomnia patients. XTJYF reduced the total score and some factor scores (subjective sleep quality, time for initiating sleep, total sleep time, and sleep efficiency for PSQI in the soldiers with sleep disorder, and the overall response rate was 91.49% which is higher than those in the placebo control group (P<0.05 or 0.01, without toxic side effects. Conclusions  The sleep quality of soldiers who acutely exposed to western area of high altitude in China is not high, and XTJYF may safely and effectively improve the sleep quality. DOI: 10.11855/j.issn.0577-7402.2016.10.15

  7. Rock Deformation, Component Migration and 18O/16O Variations during Mylonitization in the Southern Tan-Lu Fault Belt

    Institute of Scientific and Technical Information of China (English)

    YANG Xiaoyong; LIU Deliang; FENG Min; YU Qingni; WANG Kuiren

    2007-01-01

    This paper discusses the relationship between the volume loss, fluid flow and component variations in the ductile shear zone of the southern Tan-Lu fault belt. The results show that there is a large amount of fluids flowing through the shear zone during mylonitization, accompanied with the loss of volume of rocks and variations of elements and oxygen isotopes. The calculated temperature for mylonitization in different mylonites ranges from 446 to 484℃, corresponding to that of 475 to 500℃for the wall rocks. The condition of differential stress during mylonization has been obtained between 99 and 210 MPa, whereas the differential stress in the wall rock gneiss is 70-78 MPa. The mylonites are enriched by factors of 1.32-1.87 in elements such as TiO2, P2O5, MnO, Y, Zr and V and depleted in SiO2, Na2O, K2O, Al2O3, Sr, Rb and light REEs compared to their protolith gneiss. The immobile element enrichments are attributed to enrichments in residual phases such as ilmentite, zircon, apatite and epidote in mylonites and are interpreted as due to volume losses from 15% to 60% in the ductile shear zone. The largest amount of SiO2 loss is 35.76 g/100 g in the ductile shear zone, which shows the fluid infiltration. Modeling calculated results of the fluid/rock ratio for the ductile shear zone range from 196 to 1192 by assuming different degrees of fluid saturation. Oxygen isotope changes of quartz and feldspar and the calculated fluid are corresponding to the variations of differential flow stress in the ductile shear zone. With increasing differential flow stress, the mylonites show a slight decrease of δ18O in quartz, K-feldspar and fluid.

  8. The HIA instrument on board the Tan Ce 1 Double Star near-equatorial spacecraft and its first results

    Directory of Open Access Journals (Sweden)

    H. Rème

    2005-11-01

    Full Text Available On 29 December 2003, the Chinese spacecraft Tan Ce 1 (TC-1, the first component of the Double Star mission, was successfully launched within a low-latitude eccentric orbit. In the framework of the scientific cooperation between the Academy of Sciences of China and ESA, several European instruments, identical to those developed for the Cluster spacecraft, were installed on board this spacecraft.

    The HIA (Hot Ion Analyzer instrument on board the TC-1 spacecraft is an ion spectrometer nearly identical to the HIA sensor of the CIS instrument on board the 4 Cluster spacecraft. This instrument has been specially adapted for TC-1. It measures the 3-D distribution functions of the ions between 5 eV/q and 32 keV/q without mass discrimination.

    TC-1 is like a fifth Cluster spacecraft to study the interaction of the solar wind with the magnetosphere and to study geomagnetic storms and magnetospheric substorms in the near equatorial plane.

    HIA was commissioned in February 2004. Due to the 2 RE higher apogee than expected, some in-flight improvements were needed in order to use HIA in the solar wind in the initial phase of the mission. Since this period HIA has obtained very good measurements in the solar wind, the magnetosheath, the dayside and nightside plasma sheet, the ring current and the radiation belts. We present here the first results in the different regions of the magnetosphere and in the solar wind. Some of them are very new and include, for example, ion dispersion structures in the bow shock and ion beams close to the magnetopause. The huge interest in the orbit of TC-1 is strongly demonstrated.

  9. Tobacco treatment TrAining Network in Crete (TiTAN-Crete: protocol for a controlled before-after study

    Directory of Open Access Journals (Sweden)

    Charis Girvalaki

    2016-06-01

    Full Text Available Rates of tobacco use in Greece are among the highest in Europe and are responsible for an enormous burden of chronic disease and death. A large proportion of tobacco users report an interest in quitting. Family medicine practices have been identified as important settings for identifying tobacco users, delivering advice to quit smoking, and providing tobacco treatment interventions. The 5A’s (ask, advice, assess, assist, arrange schema is an evidence-based model for addressing tobacco use in clinical settings. The rates at which primary care clinicians in Greece address tobacco use in their practice is unknown but, as in other countries, is understood to be sub-optimal. This paper describes the rationale, design, and protocol for a pre/post, controlled study to compare the effectiveness of a smoking cessation intervention delivered in primary care practices in Heraklion, Greece. The TiTAN-Crete intervention includes a 1-day tobacco treatment training program, dissemination of provider and patient resources and two booster training sessions. Participating providers and a cross-sectional sample of patients from their practices, will be surveyed. Outcome measures include changes in provider attitudes and beliefs, perceived behavioral control, intentions, and barriers related to smoking cessation treatment delivery. Rates at which providers deliver tobacco treatment to patients will be measured by patient report of 5As delivery. Multi-level modeling will be used to examine the effects of the intervention. This study will lead to a better understanding of how to best assist clinicians in Greece to enhance the rates at which smoking cessation treatments are delivered to smokers.

  10. TanDEM-X IDEM precision and accuracy assessment based on a large assembly of differential GNSS measurements in Kruger National Park, South Africa

    Science.gov (United States)

    Baade, J.; Schmullius, C.

    2016-09-01

    High resolution Digital Elevation Models (DEM) represent fundamental data for a wide range of Earth surface process studies. Over the past years, the German TanDEM-X mission acquired data for a new, truly global Digital Elevation Model with unprecedented geometric resolution, precision and accuracy. First TanDEM Intermediate Digital Elevation Models (i.e. IDEM) with a geometric resolution from 0.4 to 3 arcsec have been made available for scientific purposes in November 2014. This includes four 1° × 1° tiles covering the Kruger National Park in South Africa. Here, we document the results of a local scale IDEM height accuracy validation exercise utilizing over 10,000 RTK-GNSS-based ground survey points from fourteen sites characterized by mainly pristine Savanna vegetation. The vertical precision of the ground checkpoints is 0.02 m (1σ). Selected precursor data sets (SRTMGL1, SRTM41, ASTER-GDEM2) are included in the analysis to facilitate the comparison. Although IDEM represents an intermediate product on the way to the new global TanDEM-X DEM, expected to be released in late 2016, it allows first insight into the properties of the forthcoming product. Remarkably, the TanDEM-X tiles include a number of auxiliary files providing detailed information pertinent to a user-based quality assessment. We present examples for the utilization of this information in the framework of a local scale study including the identification of height readings contaminated by water. Furthermore, this study provides evidence for the high precision and accuracy of IDEM height readings and the sensitivity to canopy cover. For open terrain, the 0.4 arcsec resolution edition (IDEM04) yields an average bias of 0.20 ± 0.05 m (95% confidence interval, Cl95), a RMSE = 1.03 m and an absolute vertical height error (LE90) of 1.5 [1.4, 1.7] m (Cl95). The corresponding values for the lower resolution IDEM editions are about the same and provide evidence for the high quality of the IDEM products

  11. Curtimento de peles de peixe com taninos vegetal e sintético = Tanning fish skins using vegetable and synthetic tannins

    Directory of Open Access Journals (Sweden)

    Ariana Martins Vieira

    2008-07-01

    Full Text Available No presente experimento objetivou-se avaliar a resistência das peles de peixes submetidas ao curtimento com taninos vegetal e sintético. As peles foram distribuídas em um delineamento inteiramente casualizado, com seis tratamentos aplicados na etapa decurtimento (T1 = 10% tanino vegetal; T2=10% tanino sintético; T3 = 5% tanino vegetal + 5% sintético; T4 = 12% tanino vegetal; T5 = 12% tanino sintético; T6 = 6% tanino vegetal + 6% sintético e dez repetições por tratamento, sendo o couro a unidade experimental.Para os testes de resistência à tração, alongamento e rasgamento, foi utilizado o dinamômetro EMIC. O curtimento com tanino vegetal, sintético e/ou sua combinação, assim como os níveis utilizados dentro de cada técnica de curtimento, interferiu no teste de tração, no entanto não influenciou No teste de alongamento e rasgamento progressivo. Portanto, a técnica de curtimento interfere na resistência dos couros de peixes. As peles de tilápia, quando curtidas e recurtidas apenas com tanino sintético, independentemente da concentração (10 ou 12%, apresentaram pior resistência à tração. Quando comparados com os que receberam 10% de taninos (vegetal e a combinação dos taninos, esses couros não apresentaram diferença na resistência.The objective of the present experiment was to evaluate the resistance of fish skins submitted to tanning using vegetable and synthetic tannins. Skins were distributed in a completelyrandomized design, with six treatments applied in the tanning stage (T1 = 10% vegetable tannin; T2 = 10% synthetic tannin; T3 = 5% vegetable tannin + 5% synthetic tannin; T4 = 12% vegetable tannin; T5 = 12% synthetic tannin; T6 = 6% vegetable tannin + 6% synthetic. Ten repetitions per treatment were conducted, and the leather was theexperimental unit. For the tests of tensile strength, lengthening and progressive tearing resistance, an EMIC dynamometer was used. Tanning with vegetable tannin, synthetic

  12. Jevrovaljuta / Lembo Tanning

    Index Scriptorium Estoniae

    Tanning, Lembo

    2001-01-01

    Artiklis käsitletakse Euroopa ühisraha kasutuselevõtmise ettevalmistamisega seonduvat: Euroopa Rahaliidu loomist, riikidele esitatud konvergentsikriteeriume, vaadeldakse euroga ühinenud maade üldist majandusseisundit

  13. Monitoring lava dome changes by means of differential DEMs from TanDEM-X interferometry: Examples from Merapi, Indonesia and Volcán de Colima, Mexico

    Science.gov (United States)

    Kubanek, J.; Westerhaus, M.; Heck, B.

    2013-12-01

    Estimating the amount of erupted material during a volcanic crisis is one of the major challenges in volcano research. One way to do this and to discriminate between juvenile and non-juvenile fraction is to assess topographic changes before and after an eruption while using area-wide 3D data. LiDAR or other airborne systems may be a good source, but the recording fails when clouds due to volcanic activity obstruct the sight. In addition, costs as well as logistics are high for local observatories. When dealing with dome-building volcanoes, acquiring the data gets further complicated. As the volcano dome can change rapidly in active phases, it is nearly impossible to collect data at the right time. However, when dealing with gross volume change estimates, at least two data sets - taken directly before and after the eruption - are essential. The innovative German Earth observation mission TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) is of great importance to overcome some of these problems. The two almost identical radar satellites TerraSAR-X and TanDEM-X fly in a close formation, thus recording images of the same place on the Earth surface at the same time (bistatic mode). As the radar signal penetrates clouds, digital elevation models (DEMs) of the area of investigation can be generated without problems even with cloud cover. A time series analysis of the differential DEMs therefore opens the possibility to assess volume changes at active lava domes. We choose Merapi in Indonesia and Volcán de Colima in Mexico as test sites. Both volcanoes reside in a state of long term effusive eruption, interrupted every few years by phases of dome destruction, generation of pyroclastic flows and deposition of volcanic material. The availability of extensive ground truth data for both test sites further enables to validate the spaceborne data and results. Here, we analyze lava dome changes due to the hazardous Merapi 2010 eruption. We show a series of DEMs

  14. Changes in serum 25-hydroxyvitamin D and cholecalciferol after one whole-body exposure in a commercial tanning bed: a randomized study.

    Science.gov (United States)

    Langdahl, Jacob H; Schierbeck, Louise Lind; Bang, Ulrich Christian; Jensen, Jens-Erik Beck

    2012-10-01

    We wanted to evaluate the cutaneous synthesis of 25OHD and cholecalciferol after one whole-body exposure to ultraviolet radiation type B (UVB) in a randomized setup. Healthy volunteers were randomized to one whole-body exposure in a commercial tanning bed with UVB emission (UVB/UVA ratio 1.8-2.0%) or an identical placebo tanning bed without UVB. The output in the 280-320 nm range was 450 µW/cm². Blood samples were analyzed for 25OHD and cholecalciferol at baseline and during 7 days after treatment. We included 20 volunteers, 11 to UVB and 9 to placebo treatment. During the first 6 h, no significant differences in 25OHD between the groups were found. At the end of the study, we found a mean increase of 25OHD in the UVB group of 4.5 nmol/l (SD 7 nmol/l) compared to a decline of -1.2 nmol/l (SD 7 nmol/l) in the placebo group (p = 0.1). A linear mixed model yielded an increase of 25OHD in the UVB group of 1.0 nmol/l per 24 h (p cholecalciferol, we found a near significant increase of 1 pmol/l per hour in the UVB group compared to the placebo group during the first 6 h (p = 0.052). One tanning bed session had significant, but modest impact on the level of 25OHD during 7 days after exposure to UVB.

  15. opraktan izole edilen Bacillus türlerinin tanımlanması ve biyolojik özelliklerinin araştırılması

    Directory of Open Access Journals (Sweden)

    Hatice Katı

    2016-08-01

    Full Text Available Bu çalışmada, Giresun adasından toplanan toprak örneklerinden Bacillus izolasyonu yapılmıştır. Bu izolatlar morfolojik, biyokimyasal ve moleküler olarak tanımlanmıştır. Tanımlanan Bacillus’larda bazı ekstrasellüler enzimlerinin varlığı kalitatif olarak incelenmiştir. Ayrıca Bacillus izolatlarının bazı bakterilere karşı antibakteriyal aktiviteleri agar difüzyon metoduna göre araştırılmıştır. Sonuç olarak 38 izolat B. cereus grubu üyesi, 7 izolat B. thuringiensis, 10 izolat B. megaterium, 6 izolat B. pumilus ve 12 izolat Bacillus sp. olarak tanımlanmıştır. Bacillus izolatlarının ekstrasellüler enzim aktivite sonuçları değerlendirildiğinde 38 izolatın amilaz, 53 izolatın lipaz/esteraz, 16 izolatın kitinaz, 7 izolatın ksilanaz, 2 izolatın pektinaz, 73 izolatın proteaz ve 35 izolatın selülaz enzim aktivitesi pozitif olarak bulunmuştur. Çalışmada kullanılan Bacillus izolatları test edilen mikroorganizmaların gelişmelerini değişik oranlarda engellemiştir. Dokuz izolat yüksek antibakteriyal aktivite göstermiştir.

  16. Accumulation of Cr, Cd, Pb, Cu, and Zn by plants in tanning sludge storage sites: opportunities for contamination bioindication and phytoremediation.

    Science.gov (United States)

    Yuan, Yongqiang; Yu, Shen; Bañuelos, G S; He, Yunfeng

    2016-11-01

    Tanning sludge enriched with high concentrations of Cr and other metals has adverse effects on the environment. Plants growing in the metalliferous soils may have the ability to cope with high metal concentrations. This study focuses on potentials of using native plants for bioindication and/or phytoremediation of Cr-contaminated sites. In the study, we characterized plants and soils from six tanning sludge storage sites. Soil in these sites exhibited toxic levels of Cr (averaged 16,492 mg kg(-1)) and other metals (e.g., 48.3 mg Cu kg(-1), 2370 mg Zn kg(-1), 44.9 mg Pb kg(-1), and 0.59 mg Cd kg(-1)). Different metal tolerance and accumulation patterns were observed among the sampled plant species. Phragmites australis, Zephyranthes candida, Cynodon dactylon, and Alternanthera philoxeroides accumulated moderate-high concentrations of Cr and other metals, which could make them good bioindicators of heavy metal pollution. High Cr and other metal concentrations (e.g., Cd and Pb) were found in Chenopodium rubrum (372 mg Cr kg(-1)), Aster subulatus (310 mg Cr kg(-1)), and Brassica chinensis (300 mg Cr kg(-1)), being considered as metal accumulators. In addition, Nerium indicum and Z. candida were able to tolerate high concentrations of Cr and other metals, and they may be used as preferable pioneer species to grow or use for restoration in Cr-contaminated sites. This study can be useful for establishing guidelines to select the most suitable plant species to revegetate and remediate metals in tanning sludge-contaminated fields.

  17. 配聚抑制剂D6对锆鞣剂性能的影响%Research on the Performance of Zirconium Tanning Agents with Coordination Polymer Inhibitor Agent D6

    Institute of Scientific and Technical Information of China (English)

    刘婷婷; 兰云军

    2012-01-01

    The advantages and disadvantages of zirconium tanning were analyzed briefly in this paper. The influences about tanning performance that caused by the hydrolysis and polymerization of zirconium tanning agent were expatiated based on coordinating chemistry and tanning chemistry. We investigated p coordination polymer inhibitor agent D6 on the cloud point of zirconium tanning agent. It showed that , with the content of D6 increased and when the mass ratio of zirconium sulfate and D6 was 1:1, the cloud piont of zirconium sulfate can be raised to 12.24. And it may be reduce the degree of zirconium tanning agents hydrolysis and polymerization well, even more promote it permeating and combinating rapidly and improve zirconium tanning properties with vastitude application foreground.%简述了锆鞣的优缺点,从配位化学和鞣制化学的角度阐述了锆鞣剂的水解配聚对鞣革性能的影响,研究了配聚抑制剂D6对锆鞣剂浊点的影响.结果表明,随着D6用量增加至与硫酸锆的质量比为1∶1时,硫酸锆的浊点可提高至12.24,很好的减缓了锆鞣剂水解聚合的程度,能改善锆鞣剂在皮中的渗透性能,促进锆鞣剂在革内分布更均匀,使锆鞣更具发展前景.

  18. Study of charged and neutral minimal supersymmetric standard model Higgs boson decays and measurement of tan at the compact linear collider

    Indian Academy of Sciences (India)

    E Coniavitis; A Ferrari

    2007-12-01

    The minimal supersymmetric extension of the standard model (MSSM) predicts the existence of new charged and neutral Higgs bosons. The pair creation of these new particles at the multi-TeV + - compact linear collider (CLIC), followed by decays into standard model particles, were simulated along with the corresponding background. High-energy beam-beam effects such as ISR, beamstrahlung and hadronic background were included. We have investigated the possibility of using the ratio between the number of events found in various decay channels to determine the MSSM parameter tan and we have derived the corresponding statistical error from the uncertainties on the measured cross-sections and Higgs boson masses.

  19. Mass changes of glaciers over the Central Karakoram derived from TanDEM-X and SRTM/X-SAR Digital Elevation Models

    Science.gov (United States)

    Rankl, Melanie; Braun, Matthias

    2015-04-01

    Snow cover and glaciers in the Karakoram region are important freshwater resources for many downriver communities as they provide water for irrigation and hydro power. A better understanding of current glacier changes is hence an important baseline information. Glaciers in the Karakoram have shown stable and positive glacier mass balances during recent years as well as stable and advancing termini positions. The Karakoram is also known for a large number of surge-type glaciers. Here, we present geodetic glacier elevation and mass changes using TanDEM-X and SRTM/X-SAR Digital Elevation Models between 2000 and 2012. Based on previous glacier inventories for the Karakoram, we show elevation changes and glacier mass balances for glaciers with advancing and stable termini between 2000 and 2012 as well as surge-type glaciers separately. In order to convert volume changes to mass changes, we applied different density scenarios (i.e., constant densities for ice and snow or zonally variable densities). Our findings show average glacier thickening of +0.01 ± 0.02 m a-1 or mass gain of +0.0099 ± 2.8x10-5 Gt a-1(using a density of 850 kg m-3) between 2000 and 2012 for parts of the Central Karakoram. Surge-type glaciers and advancing glaciers indicated slight surface lowering, while the majority of the studied glaciers showed stable termini and surface thickening. Our measurements are independent from varying penetration depths of the radar signal or temporal decorrelation between image acquisitions. Both datasets were acquired in the X-band frequency under assumed similar surface conditions. The bistatic TanDEM-X mission is highly suitable for interferometric processing due to high spatial resolutions and only 3 sec time lag between TanDEM-X and TerraSAR-X overpasses. We want to stress the enormous potential of the TanDEM-X mission to estimate geodetic glacier mass balances, in particular when compared to elevation data sets acquired in a similar frequency and comparable

  20. Identification of Tanned Leather and Fur%动物鞣制皮革与毛皮的种类鉴定

    Institute of Scientific and Technical Information of China (English)

    王名宫

    2012-01-01

    阐述了动物鞣制皮革和毛皮种类鉴定的方法,包括了传统感官方法、红外光谱法和分子生物法,并分析了各种方法的优点及存在的问题。%The identification methods of tanned leather and fur are presented in this paper,including traditional sensory analysis, FT-IR method and molecular biology methods. Meanwhile, the advantages of various methods and existing problems are analysed.

  1. Deletion of C7L and K1L Genes Leads to Significantly Decreased Virulence of Recombinant Vaccinia Virus TianTan

    OpenAIRE

    Zheng Liu; Shuhui Wang; Qicheng Zhang; Meijuan Tian; Jue Hou; Rongmin Wang; Chang Liu; Xu Ji; Ying Liu; Yiming Shao

    2013-01-01

    The vaccinia virus TianTan (VTT) has been modified as an HIV vaccine vector in China and has shown excellent performance in immunogenicity and safety. However, its adverse effects in immunosuppressed individuals warrant the search for a safer vector in the following clinic trails. In this study, we deleted the C7L and K1L genes of VTT and constructed six recombinant vaccinia strains VTT△C7L, VTT△K1L, VTT△C7LK1L, VTKgpe△C7L, VTKgpe△K1L and VTT△C7LK1L-gag. The pathogenicity and immunogenicity o...

  2. Sub-Acute Toxicity Study of Tiger Milk Mushroom Lignosus tigris Chon S. Tan Cultivar E Sclerotium in Sprague Dawley Rats

    OpenAIRE

    Kong, Boon-Hong; Tan, Nget-Hong; Fung, Shin-Yee; Pailoor, Jayalakshmi

    2016-01-01

    Lignosus also known as “Tiger Milk Mushroom,” is classified in the family Polyporaceae and mainly consumed for its medicinal properties in Southeast Asia and China. The sclerotium is known as the part with medicinal value and often used by the natives to treat a variety of ailments. Lignosus tigris Chon S. Tan, one of the species of the Malaysia Tiger Milk mushroom, has recently been successfully cultivated in laboratory. Earlier studies have demonstrated the L. tigris cultivar E sclerotia ex...

  3. 超声波辅助铬鞣兔皮工艺的研究%Power Ultrasound Assisted Chrome Tanning of Rabbit Skin

    Institute of Scientific and Technical Information of China (English)

    李瑶; 张欢欢; 刘晗; 张宗才

    2013-01-01

    The effect of power ultrasound on chrome tanning of rabbit skin was investigated in this paper.The influence of chrome tanning liquid concentration,reaction time and the intensity of the ultrasonic wave on the velocity of permeability and shrinking temperature (Ts) were experimented respectively.The results indicated that a short-time reaction with ultrasonic wave could effectively increase the penetrating and binding rate of chrome in the beginning of the tanning process,but the total amount of the combined chrome could not be increased over time.Furthermore,it was found that under the use of low-frequency ultrasonic,the ultrasonic of 45 kHz could improve the tanning effect the most in the first 4 h.%研究了在超声波辅助作用下的兔皮铬鞣过程,分别考察了在不同鞣液浓度,处理时间,不同频率下的超声波对样品中铬鞣剂的渗透速度及收缩温度的影响.结果表明,短时间的超声处理即可有效加快铬鞣剂的渗透,且超声波对铬鞣剂在兔皮皮板内的渗透扩散及结合的促进作用主要表现在经超声处理后的前4h.但超声波的作用并没有随着超声时间的延长而一直保持增加,且超声波作用并不能提高兔皮与铬鞣剂的结合总量.此外,在反应的前4h内,较低频率(45 kHz)超声波对铬鞣效果的增强更为明显.

  4. Ação de diferentes agentes curtentes utilizados no curtimento de peles de coelhos: testes físico-mecânicos dos couros - DOI: 10.4025/actascianimsci.v31i4.5592 Action of different tanning agents used on rabbit hide tanning: physical-mechanic tests - DOI: 10.4025/actascianimsci.v31i4.5592

    Directory of Open Access Journals (Sweden)

    Nilson do Prado Franco

    2009-10-01

    Full Text Available O objetivo do experimento foi avaliar a ação de diferentes agentes curtentes no processamento das peles de coelhos, sobre a resistência do couro. Cinquenta peles de coelhos foram submetidas a diferentes agentes curtentes na etapa de curtimento (T1 = 6% sais de cromo Chromossal B®, T2 = 22% tanino vegetal Clarotan-x8®; T3 = 22% tanino sintético Syntac CW®; T4 = 12% tanino vegetal Weibull® + 10% tanino sintético Syntac F®; T5 = 22% tanino vegetal Weibull®. Foram retirados os corpos de prova do couro, na região dorsal, no sentido longitudinal e transversal em relação ao eixo céfalo-caudal. Os agentes curtentes e retirada dos corpos de prova não influenciaram no teste de tração (9,28 a 11,63 N mm-2 e força aplicada (17,91 N a 24,85 N nos testes. Os curtimentos com sais de cromo (62,85% e Clarotan–x8® (70,28% proporcionaram maiores valores de alongamento em relação aos demais agentes curtentes utilizados. Os corpos de prova do couro no sentido transversal (59,12% apresentaram maior alongamento comparado ao longitudinal (49,72%. Os curtimentos com sais de cromo (22,70 N mm-1, Clarotan–x8® (25,94 N mm-1 e Weibull® (21,58 N mm-1 proporcionaram couros com maior resistência ao rasgamento. O sentido de retirada dos corpos de prova no couro não influenciou no rasgamento progressivo. As técnicas de curtimento com sais de cromo e Clarotan-x8® proporcionaram couros com melhores valores de resistência ao alongamento e rasgamento progressivo.The objective of the experiment was to evaluate the action of different tanning agents in the processing of rabbit hides over skin resistance. Fifty skins of rabbit hides were submitted to different tanning agents in the tanning stage (T1 = 6% Chromossal B® chrome salts; T2 = 22% Clarotan–x8® vegetable tannin; T3 = 22% Syntac CW® synthetic tannin; T4 = 12% Weibull® vegetable tannin + 10% Syntac F® synthetic tannin; T5 = 22% Weibull® vegetable tannin. The specimens were removed from

  5. On the Astonishing Beauty Style in the Novels by Wang Shizhen--Taking TanYi in ChiBeiOuTan as Example%论王士禛小说创作的奇异美--以《池北偶谈·谈异》为例

    Institute of Scientific and Technical Information of China (English)

    王然

    2014-01-01

    清代文人王士禛一生创作了《池北偶谈》、《皇华记闻》、《香祖笔记》等七部笔记杂录,其中多有小说作品。《池北偶谈·谈异》代表了其小说创作的主要成就,是其小说创作的精华。王士禛小说创作具有鲜明的个人特色,在用词、内容等方面表现出崇奇尚异的审美取向,而这与其人生经历、心理体验以及当时的社会状况密切相关。%Wang Shizhen in Qing Dynasty has written 7 Notes comprising lots of novels,such as ChiBeiOuTan,HuangHuaJiWen,Xi-angZuBiJi. TanYi in ChiBeiOuTan is exquisite and is the most important notes of Wang Shizhen. Wang Shizhen' novel has formed sharp features and has the tendency of seeking strange and astonishing beauty in the vocabulary and contents. The tendency is most associated with his life experience,psychological experience and social conditions.

  6. Evaluation of Green Logistics Level of Chang-zhu-tan City Cluster%长株潭城市群绿色物流评价

    Institute of Scientific and Technical Information of China (English)

    庞燕; 夏扬坤

    2014-01-01

    首先对城市群绿色物流进行探讨,并构建出了长株潭城市群绿色物流要素系统;然后结合长株潭城市群区域物流特点,构建了长株潭城市群绿色物流评价指标体系;最后利用基于层次分析法的模糊综合评价模型(Fuzzy-AHP模型),对长株潭城市群物流发展绿色度进行评价,结果显示,长株潭城市群绿色物流发展总体水平为良好,但在资源集约和环境保护方面还需要加大力度。%In this paper, we first discussed the green logistics level of city clusters, built the green logistics element system of the Chang-zhu-tan city cluster, then in view of the characteristic of the regional logistics process of the city cluster, established the corresponding green logistics evaluation index system, and at the end, using fuzzy-AHP, assessed the degree of greenness of the logistics development of the Chang-zhu-tan city cluster.

  7. The attenuation of vaccinia Tian Tan strain by the removal of the viral M1L-K2L genes.

    Science.gov (United States)

    Zhu, Weijun; Fang, Qing; Zhuang, Ke; Wang, Haibo; Yu, Wenbo; Zhou, Jingying; Liu, Li; Tien, Po; Zhang, Linqi; Chen, Zhiwei

    2007-09-01

    To generate a safe vaccinia Tian Tan (VTT)-based vaccine vector, it is necessary to develop a method to attenuate the virus. A modified VTT (MVTT(2-GFP)) was constructed by replacing the viral M1L-K2L genes with a GFP gene. In comparison to the parental VTT, MVTT(2-GFP) lost its replication capacity in rabbit RK13 and human HeLa cell lines. The life cycle of viral replication was blocked at different stages in these two cell lines as determined by electron microscope examination. MVTT(2-GFP) was less virulent than VTT for 100-fold by measuring mouse body weight loss after intranasal viral inoculation and for 340-fold by determining the intracranial LD(50) value in mice. The foreign GFP gene was stable genetically after 10 rounds of passage in Vero cells. Importantly, MVTT(2-GFP) elicited both humoral and cell-mediated immune responses to the GFP gene in mice. With two intramuscular inoculations of 10(5)PFU virus, the anti-GFP antibody reciprocal endpoint titer reached over 700 as determined by an ELISA. The number of IFN-gamma secreting T cells reached over 350SFU per million splenocytes against a CD8+ T cell-specific epitope of GFP. Collectively, the removal of the M1L-K2L genes is a useful method to generate an attenuated vaccinia Tian Tan vaccine vector.

  8. Kinetic model of the thermal pyrolysis of chrome tanned leather treated with NaOH under different conditions using thermogravimetric analysis.

    Science.gov (United States)

    Bañón, E; Marcilla, A; García, A N; Martínez, P; León, M

    2016-02-01

    The thermal decomposition of chrome tanned leather before and after a soaking treatment with NaOH was studied using thermogravimetric analysis (TGA). The effect of the solution concentration (0.2M and 0.5M) and the soaking time (5min and 15min) was evaluated. TGA experiments at four heating rates (5, 10, 15 and 20°Cmin(-1)) were run in a nitrogen atmosphere for every treatment condition. A kinetic model was developed considering the effect of the three variables studied, i.e.: the NaOH solution concentration, the soaking time and the heating rate. The proposed model for chrome tanned leather pyrolysis involves a set of four reactions, i.e.: three independent nth order reactions, yielding the corresponding products and one of them undergoing a successive cero order reaction. The model was successfully applied simultaneously to all the experimental data obtained. The evaluation of the kinetic parameters obtained (activation energy, pre-exponential factor and reaction order) allowed a better understanding of the effect of the alkali treatment on these wastes.

  9. El redescubrimiento del Germán Valdés pre-Tin Tan en XEJ Radio (1934-1943

    Directory of Open Access Journals (Sweden)

    Héctor Noriega Mendoza

    2011-01-01

    Full Text Available Se presentan los resultados del más reciente proyecto de investigación sobre la trayectoria artística del locutor Germán Valdés Castillo en XEJ Radio de Cd. Juárez, Chih. durante el periodo 1934-1943. Reportamos el primer spot publicitario conocido de Valdés como locutor y sus personajes y actuaciones inéditas, incluyendo evidencia de su periodo exploratorio en XEF y XEP. Se analiza la estructura del programa El Barco de la Ilusión de XEJ Radio en su segunda etapa de transmisión en vivo en la era Valdés (1940-1943, así como la cronología del encuentro Valdés-Miller en 1943. Presentamos el primer registro periodístico/publicitario conocido del personaje de Topillo, antecedente directo del pachuco Tin Tan, así como sus primeros sketches y se concluye que el famoso pachuco fue un personaje de surgimiento artístico tardío. Finalmente, se define la Tétrada 4583 para caracterizar las cuatro fechas más significativas de la carrera artístico-profesional de Germán Valdés en XEJ Radio y reportamos una referencia inédita relacionada con el nombre de Tin Tan.

  10. Del ideal del ciudadano al ciudadano en-situación: un estudio sobre los modelos de ciudadanía y los posicionamientos subjetivos de jóvenes ciudadanos en la Argentina actual (Buenos Aires y Conurbano, 2011-13

    Directory of Open Access Journals (Sweden)

    Miriam Kriger

    2015-01-01

    Full Text Available El presente trabajo se inserta en el campo de estudios sobre juventud y política, entendida esta última como aspecto clave del vínculo con el "proyecto común" al que los jóvenes se suman formalmente como nuevos ciudadanos. Desde una perspectiva psicosocial y con foco en el contexto contemporáneo argentino, el artículo problematiza la relación entre cómo conciben los jóvenes a "la ciudadanía" en un plano ideal y cómo son sus actitudes como ciudadanos en-situación, con especial interés en las tensiones y articulaciones entre la moral y la política, lo individual y lo social. En esta línea, se presentan y analizan resultados de un estudio realizado en Argentina entre el 2011-3 con jóvenes estudiantes (N=275 en el cual se indaga, por una parte, sus modelos de ciudadanía y, por otra, sus propuestas para abordar la llamada "inseguridad", una problemática percibida por ellos como central y actual, enfrentándolos a una alta conflictividad social. Como resultado, se establecen tres ideal/es de ciudadano (individual, social y político y tres tipos de posicionamiento subjetivo (punitivo, disciplinar y político, que se infieren a partir de sus propuestas para abordar "la inseguridad". Se concluye problematizando y reflexionando sobre la correlación hallada en la mayoría de los participantes entre el ideal individual del ciudadano, con fuerte impronta moral, y el posicionamiento punitivo frente al conflicto, y remarcando la necesidad de trabajar en pos de la incorporación de la dimensión social y política al pensamiento de los jóvenes.

  11. Development of an artisanal tanning method of the acoupa weakfish (Cynoscion acoupa skin and its transfer through a workshop to a community in the city of Bragança, PA, Brazil

    Directory of Open Access Journals (Sweden)

    Bruno José Corecha Fernandes Eiras

    2015-04-01

    Full Text Available Bragança is one of the largest fishing centers in the state of Pará, northern Brazil. In the city, there are several environmental and socio-economic problems such as lack of waste management and contamination of water sources that supply to the city and the Caeté river estuary. The social and economic problems are mainly caused by social inequality, which usually occurs in communities where the population depends mainly on fishing. Fish waste forms a part of the waste disposed in the region. Fish skin represents a significant portion of this waste and may be used for manufacturing leather by the tanning process, thereby generating income for the community and reducing environmental impacts. The acoupa weakfish (Cynoscion acoupa has a high potential for tanning because of its large size and high yield of skin. The aim of this study was to develop a methodology for artisanal skin tanning of acoupa weakfish and the subsequent transfer of this methodology to a fishing community through a workshop. The methodology developed in the laboratory is more streamlined than traditional methods and is based on tanning methods cited in the literature and techniques applied in regional tanneries. To assess the quality of acoupa weakfish leather, resistance tests were performed, which proved its potential for manufacturing clothing and footwear. An economic analysis of the hypothetical production of leather based on the tanning methodology developed in this work revealed that the project is feasible and the effluents generated during the process are less harmful to the environment, compared to those generated by traditional tanning methods.

  12. Studies on 40Ar/39Ar thermochronology of strike-slip time of the Tan-Lu fault zone and their tectonic implications

    Institute of Scientific and Technical Information of China (English)

    ZHU; Guang

    2001-01-01

    [1]Xu, J. W., Ma, G. E, Ten years review on studies on the Tan-Lu fault zone, Geological Review (in Chinese), 1992, 38(4):316-324.[2]Xu, J. W., The Tancheng-Lujiang Wrench Fault System, Chichester(UK): John Wiley & Sons Ltd, 1993, 177-183.[3]Zhu, G., Xu, J. W., Tectonic relationships between the Tan-Lu fault zone and the Dabie-Jiaonan orogenic belt, in Research Progress in Structural Geology and Lithosphere Dynamics (ed., Ma. Z. J.) (in Chinese), Beijing: Seismological Publishing House, 1999,164-170.[4]Dou, L. R., Song, J. G., Wang, Y., Chronology of formation of the northern part of the Tan-Lu fault zone and its implications, Geological Review (in Chinese), 1996,42(6): 508-512.[5]Yin, A., Nie, S. Y., An indendation model for the North and South China collision and the development of the Tan-Lu and Honam fault system, eastern Asia, Tectonics, 1993, 12(4): 801-813.[6]Wan, T. F., Zhu, H., The maximum sinistral strike-slip displacement and formation time of the Tan-Lu fault zone, Geological Journal of China Universities (in Chinese), 1996, 2(1): 14-27.[7]Wang, X. F., Li, Z. J., Chen, B. L. et al., Formation and evolution of the Tan-Lu strike-slip fault system and its geological significance, in Proceedings of 30th International Geological Congress (ed., Zheng, Y. Z.), Beijing: Geological Publishing House, 1998, 14: 176-196.[8]Xu, J. W., Zhu, G., Tectonic models of the Tan-Lu fault zone,eastern China, International Geology Review, 1994,36:771-784.[9]Zhu, G., Xu, J. W., Displacement, timing and tectonic models of the Tan-Lu fault zone, in Proceedings of 30th International Geological Congress (ed., Zheng, Y. D.), Beijing: Geological Publishing House, 1998, 14: 167-175.[10]Zhang, Z. M., Liou, J. G., Coleman, R. G., An outline of the plate tectonics of China, Geol. Soc. Am. Bull., 1984, 95:295-312.[11]Watson, M. P., Hayward, A. B., Parkinson, D. N. et al., Plate tectonics history, basin development and petroleum source rock

  13. Seasonal changes of surface velocity and elevation of Columbia Glacier, Alaska using time-series TerraSAR-X/TanDEM-X data

    Science.gov (United States)

    Vijay, Saurabh; Braun, Matthias

    2015-04-01

    Alaskan glaciers are a major contributor to global sea-level rise from glaciers and ice caps outside the polar ice sheets. Columbia Glacier is a large tidewater glacier located on the coast of south-central Alaska. The glacier has retreated ˜ 21 km and lost half of its volume during 1957-2007, more rapidly after 1980. It is now split into two branches, known as Main/East and West branch. In this study, we used time series of high-resolution TerraSAR-X/TanDEM-X stripmap satellite imagery during 2011-2014 to investigate the temporal development of glacier surface velocities, elevation and mass changes. The active SLC images of the bistatic TanDEM-X acquisitions, acquired over 11 or 22 days repeat intervals, are utilized to derive surface velocity fields using SAR intensity offset tracking. We observed a very strong seasonal variability in the surface velocities. Maximum values at the ice front reach up to 14.43 m/day in May and reduced to 2 m/day in October in the year 2012. However, at a distance of 17.5 km from the ice front, almost no seasonal variability can be observed. A significant influence in the distance to the terminus and elevation was detected. We attributed this temporal and spatial variability of surface velocity to changes in the basal hydrology and lubrification of the glacier bed. Similar fluctuations are observed in consecutive years. In a second step, we exploited TanDEM-X data by interferometrically generating time series of digital elevation models (DEMs) . For quantitative volume change estimates, we used DEMs of almost similar months of the observational years in order to minimize errors resulting from variable X-band radar penetration. The main branch gained a volume of 12.77± 2.89km^3in 2011-12, but lost -18.94± 3.21km^3in 2012-13 . A slight gain was observed with 1.05± .88km^3in 2013-14. However, the west branch gained volume only in 2011-12 and lost in the consecutive years. Moreover, the west branch retreated by ˜ 3km and lost its

  14. Capturing interactions between nitrogen and hydrological cycles under historical climate and land use: Susquehanna watershed analysis with the GFDL land model LM3-TAN

    Science.gov (United States)

    Lee, M.; Malyshev, S.; Shevliakova, E.; Milly, Paul C. D.; Jaffé, P. R.

    2014-01-01

    We developed a process model LM3-TAN to assess the combined effects of direct human influences and climate change on terrestrial and aquatic nitrogen (TAN) cycling. The model was developed by expanding NOAA's Geophysical Fluid Dynamics Laboratory land model LM3V-N of coupled terrestrial carbon and nitrogen (C-N) cycling and including new N cycling processes and inputs such as a soil denitrification, point N sources to streams (i.e., sewage), and stream transport and microbial processes. Because the model integrates ecological, hydrological, and biogeochemical processes, it captures key controls of the transport and fate of N in the vegetation–soil–river system in a comprehensive and consistent framework which is responsive to climatic variations and land-use changes. We applied the model at 1/8° resolution for a study of the Susquehanna River Basin. We simulated with LM3-TAN stream dissolved organic-N, ammonium-N, and nitrate-N loads throughout the river network, and we evaluated the modeled loads for 1986–2005 using data from 16 monitoring stations as well as a reported budget for the entire basin. By accounting for interannual hydrologic variability, the model was able to capture interannual variations of stream N loadings. While the model was calibrated with the stream N loads only at the last downstream Susquehanna River Basin Commission station Marietta (40°02' N, 76°32' W), it captured the N loads well at multiple locations within the basin with different climate regimes, land-use types, and associated N sources and transformations in the sub-basins. Furthermore, the calculated and previously reported N budgets agreed well at the level of the whole Susquehanna watershed. Here we illustrate how point and non-point N sources contributing to the various ecosystems are stored, lost, and exported via the river. Local analysis of six sub-basins showed combined effects of land use and climate on soil denitrification rates, with the highest rates in the

  15. Zaman Tanım Alanında Analiz Yöntemi Kullanılarak Binalardaki A3 Düzensizliğinin İncelenmesi

    Directory of Open Access Journals (Sweden)

    Mehmet Emin ÖNCÜ

    2014-02-01

    Full Text Available Depreme dayanıklı yapı tasarımları için farklı yöntemler kullanılmaktadır. En güncel yöntemlerden biri de Zaman Tanım Alanında Doğrusal Olmayan Analizdir. Bu yöntemle sismik analizler yapılırken daha önce meydana gelmiş depremlerin ivme kayıtları kullanılmaktadır. Bu deprem ivme kayıtları değişik kaynaklardan çok farklı yöntemlerle elde edilir. Bunlar: Tasarım ivme spektrumu uyumlu yapay kayıtlar, benzeştirilmiş kayıtlar ve deprem esnasında kaydedilen kayıtlardır (Fajhan, 2008. Bu kayıtlar kullanılırken farklı bölgelerdeki zemin özellikleri de dikkate alınmalıdır. Bu çalışmada, Deprem Bölgelerinde Yapılacak Binalar Hakkındaki Yönetmelikte belirtilen Zaman Tanım Alanında Analiz yöntemi ile doğrusal olmayan analizi yapılan A3 düzensizliğine sahip belli tip yapılar incelenmiştir. Önce üç deprem ivme kaydı alınarak Türk Deprem Yönetmeliğinde ifade edilen elastik tasarım ivme spektrumuna göre ölçeklendirilmiştir. Elde edilen maksimum ivme kaydı, daha sonra A3 düzensizliğine sahip bu tip yapılara uygulanmıştır. Analiz sonuçlarına göre yapıların zemin kat kolonlarındaki kesme kuvvetleri bulunmuştur. Anahtar kelimeler: Zaman Tanım Alanında Analiz, A3 Düzensizliği, Deprem İvme Kaydının Ölçeklendirilmesi

  16. Capturing interactions between nitrogen and hydrological cycles under historical climate and land use: Susquehanna watershed analysis with the GFDL Land Model LM3-TAN

    Directory of Open Access Journals (Sweden)

    M. Lee

    2014-04-01

    Full Text Available We developed a~process model LM3-TAN to assess the combined effects of direct human influences and climate change on Terrestrial and Aquatic Nitrogen (TAN cycling. The model was developed by expanding NOAA's Geophysical Fluid Dynamics Laboratory land model LM3V-N of coupled terrestrial carbon and nitrogen (C-N cycling and including new N cycling processes and inputs such as a~soil denitrification, point N sources to streams (i.e. sewage, and stream transport and microbial processes. Because the model integrates ecological, hydrological, and biogeochemical processes, it captures key controls of transport and fate of N in the vegetation-soil-river system in a comprehensive and consistent framework which is responsive to climatic variations and land use changes. We applied the model at 1/8° resolution for a study of the Susquehanna River basin. We simulated with LM3-TAN stream dissolved organic-N, ammonium-N, and nitrate-N loads throughout the river network, and we evaluated the modeled loads for 1986–2005 using data from 15 monitoring stations as well as a reported budget for the entire basin. By accounting for inter-annual hydrologic variability, the model was able to capture inter-annual variations of stream N loadings. While the model was calibrated with the stream N loads only at the last downstream station Marietta (40.02° N, 76.32° W, it captured the N loads well at multiple locations within the basin with different climate regimes, land use types, and associated N sources and transformations in the sub-basins. Furthermore, the calculated and previously reported N budgets agreed well at the level of the whole Susquehanna watershed. Here we illustrate how point and non-point N sources contribute to the various ecosystems are stored, lost, and exported via the river. Local analysis for 6 sub-basins showed combined effects of land use and climate on the soil denitrification rates, with the highest rates in the Lower Susquehanna sub

  17. Observations on Si-based micro-clusters embedded in TaN thin film deposited by co-sputtering with oxygen contamination

    Directory of Open Access Journals (Sweden)

    Young Mi Lee

    2015-08-01

    Full Text Available Using scanning electron microscopy (SEM and high-resolution x-ray photoelectron spectroscopy with the synchrotron radiation we investigated Si-based micro-clusters embedded in TaSiN thin films having oxygen contamination. TaSiN thin films were deposited by co-sputtering on fixed or rotated substrates and with various power conditions of TaN and Si targets. Three types of embedded micro-clusters with the chemical states of pure Si, SiOx-capped Si, and SiO2-capped Si were observed and analyzed using SEM and Si 2p and Ta 4f core-level spectra were derived. Their different resistivities are presumably due to the different chemical states and densities of Si-based micro-clusters.

  18. Tanıdan Eğitime Kosova Cumhuriyeti’nde İşitme Engelli Çocuklara Yönelik Düzenlemelerin İncelenmesi

    Directory of Open Access Journals (Sweden)

    Hasan Gürgür

    2016-04-01

    Full Text Available Bağımsızlığını 2008’de tek taraflı ilan etmesinin ardından Kosova Cumhuriyeti diğer tüm alanlarda olduğu gibi eğitim alanında da yeniden yapılanma sürecine girmiştir. Bunun bir yansıması olarak Kosova Cumhuriyeti Eğitim Bakanlığı ile Anadolu Üniversitesi arasında yapılan bir protokol çerçevesinde gerçekleştirilen bu araştırmanın amacı, Kosova’daki işitme engelli çocukların tanı, değerlendirme ve eğitimlerine yönelik düzenlemelerin incelenmesi yoluyla sorun ve gereksinimlerin ortaya konmasıdır. Karma yöntem araştırmalarından eşzamanlı çeşitleme deseniyle ve toplam 92 katılımcıyla yürütülen çalışmada Kosova’daki işitme engelli çocukların ailelerine (n = 34, öğretmenlerine (n = 28 ve sağlık personeline (n = 20 anket uygulanmış, ayrıca bir grup aile (n = 4 ve öğretmenle (n = 6 yarı-yapılandırılmış görüşme gerçekleştirilmiştir. Nicel bir araç olan anket ve nitel bir teknik olan yarı-yapılandırılmış görüşmelerin betimsel analizi iki temel alanda ciddi sorunlara işaret etmiştir: (a tanı, değerlendirme ve müdahale ve (b eğitimsel düzenlemeler. İlk grupta öne çıkan sorunlar işitme kaybının tanılanması, değerlendirilmesi, çocuğun cihazlandırılması, tanı sonrası aileye destek hizmetleri ve okul öncesi eğitim alanlarında belirgin yoksunluk ya da yetersizliklerdir. İkinci gruptaki sorunlar ise ailelerin istediği iletişim yaklaşımı ile okullarda kullanılanın örtüşmemesi, öğretmen sayı ve niteliğinin, eğitim ortamındaki fiziksel düzenlemelerin, öğretim planlanması ve uygulanmasının ve kaynaştırma uygulamalarının ciddi derecede sorgulanabilir olmasıdır. Araştırma, anılan problem alanlarında ciddi yapısal düzenlemelerin acil olarak gerçekleştirilmesi gerektiğini açık biçimde ortaya koymuştur.

  19. Attenuation of vaccinia Tian Tan strain by removal of viral TC7L-TK2L and TA35R genes.

    Directory of Open Access Journals (Sweden)

    Shifu Kan

    Full Text Available Vaccinia Tian Tan (VTT was attenuated by deletion of the TC7L-TK2L and TA35R genes to generate MVTT3. The mutant was generated by replacing the open reading frames by a gene encoding enhanced green fluorescent protein (EGFP flanked by loxP sites. Viruses expressing EGFP were then screened for and purified by serial plaque formation. In a second step the marker EGFP gene was removed by transfecting cells with a plasmid encoding cre recombinase and selecting for viruses that had lost the EGFP phenotype. The MVTT3 mutant was shown to be avirulent and immunogenic. These results support the conclusion that TC7L-TK2L and TA35R deletion mutants can be used as safe viral vectors or as platform for vaccines.

  20. Sobre machos reales y santos ficticios: Yo no tengo la culpa de haber nacido tan sexy de Eduardo Mendicutti, entre lo global y lo local

    Directory of Open Access Journals (Sweden)

    Dieter Ingenschay

    2011-01-01

    Full Text Available En Yo no tengo la culpa de haber nacido tan sexy (1997, Eduardo Mendicutti cuenta unos episodios del “peregrinaje” de la todavía hermosa transexual Rebecca de Windsor a siete monasterios que visita en busca de la perfección religiosa y de la unión con el Amado divino. El texto despliega su estética camp a través del pastiche de los estilos, dicciones y temas de la lírica mística barroca, sobre todo por las referencias a Las Moradas de Santa Teresa de Ávila, su intertexto directo. A la vez logra describir las consecuencias de la globalización de las prácticas homosexuales y tematizar los rasgos específicos

  1. Correlation Studies of Rare Earth Elements in Syntectonic Intrusions of Strike-Slip Stage along Southern Segment of Tan-Lu Fault Zone

    Institute of Scientific and Technical Information of China (English)

    Niu Manlan; Zhu Guang; Liu Guosheng; Song Chuanzhong

    2005-01-01

    Intrusions in the Zhangbaling uplift zone and the eastern margin of the Dabie orogenic belt belong to the syntectonic intrusions developed during the strike-slip stage in the southern segment of the Tan-Lu fault zone. However, characteristics of rare earth elements show that intrusions in the Zhangbaling uplift zone have the characteristics of mantle source type and those in the eastern margin of Dabie belt are the typical crust source type. Therefore, Au-deposits related to the intrusions in the Zhangbaling uplift zone are developed better than those in the eastern margin of the Dabieshan. The research results of the rare earth elements coincide with the studies of geophysics, tectonic setting and stable isotope. It is further indicated that the rare earth elements offer effective approach to tracing the material sources of magmatic rocks.

  2. 滩羊胎儿弯曲杆菌的分离鉴定%Isolation and Identiifcation of Campylobacter fetus from Tan Sheep

    Institute of Scientific and Technical Information of China (English)

    吴亚文; 李莉娟; 赵燕; 张玉玲; 李志红; 王玉梅; 张雯; 王晓亮; 张和平; 张学军; 杨佳冰

    2016-01-01

    [目的]对一规模化养殖场滩羊流产的原因进行确诊,为流产羊的疫病诊断和防控提供建议。[方法]无菌采集流产胎儿血性腹水和流产母羊阴道分泌物进行细菌培养、分离和鉴定。[结果]分离到2株病原菌,经形态特性、培养特性及生理生化特性观察,鉴定为胎儿弯曲杆菌胎儿亚种;动物实验表明,其对小白鼠有很强的致病性。[结论]致病性胎儿弯曲杆菌胎儿亚种是造成该羊场发生大面积流产的主要病原。%Objective] To ascertain the cause of abortion in Tan sheep population so as to provide advice for diagno-sis,prevention and control of Campylobacter fetus infection. [Methods] Samples from fetal bloody ascites and aborted ewes vaginal secretions were aseptically collected for bacterial culture,isolation and identification of bacterial testing. [Results] Two strains of pathogenic bacteria were isolated,which were determined as Campylobacter fetus subspecies fetus by observing the morphological characteristics,cultural characteristics and physiological and biochemical char-acteristics. The isolates had strong pathogenicity for mice. [Conclusion] The main pathogens leading to many Tan sheep aborted were the pathogenic Campylobacter fetus subspecies fetus.

  3. Effect of polarization orientation angle shift on X-band TDM SAR COSSC product of TerraSAR-X and TanDEM-X

    Science.gov (United States)

    Gupta, Asmita; Kumar, Shashi; Pandey, Uttara

    2016-05-01

    Polarization orientation angle (POA) shift in the backscattered SAR wave induced, due to irregularity of the target surface. Polarimetric signatures of the backscatter SAR wave gets affected by the POA shift, causes error in the decomposition modelling as shift in POA makes coherency matrix asymmetric. POA shift compensation is very necessary to avoid misinterpretation of decomposition modelling results. POA shift effect has been observed using coherency matrix and decomposition model results. This study is conducted over Dudhwa National Park in the state of Uttar Pradesh, using high resolution, TDM SAR COSSC Product of TerraSAR-X and TanDEM-X in Bistatic mode. Present study mainly focused on the comparative analysis of resultant scattering component of decomposition model before and after POA shift compensation. Shift in POA is investigated using circular polarization technique. Yamaguchi four component decomposition model is used to express total backscatter information in terms of volume, double bounce, surface and helix scattering. Volume scattering is overestimated however double bounce and surface scattering is under estimated in decomposition model due to POA shift present in the backscatter SAR wave. Different scattering mechanisms resulted after POA compensation were analyzed using 100 random points taken from forest structure. The results obtained by TerraSAR-X and TanDEM-X shows an overall increase in double bounce scattering and decrease in volume scattering component after POA shift compensation. It is observed that there is negligible effect of POA shift on surface scattering. POA shift compensation necessarily required to improve the accuracy of decomposition models used in the forest parameter retrieval applications.

  4. Tropical-Forest Profiles and Biomass from TanDEM-X, Single-Baseline Interferometric SAR: InSAR Performance at Higher Frequencies and Bandwidths

    Science.gov (United States)

    Treuhaft, R. N.; Goncalves, F. G.; Neumann, M.; Keller, M. M.; Santos, J. R.

    2015-12-01

    The principal method for remotely sensing forest biomass, particularly high-biomass tropical forests, is to measure vertical structural properties of the forest and relate them to biomass. Interferometric SAR (InSAR) and lidar are the two principal technologies applied to this task. InSAR profile information is constrained in the traditional, look-averaged analysis, because it measures the vertical Fourier transform of the radar power at one and only one vertical frequency specified by the baseline. Lidar produces a full profile, including all Fourier frequencies—all vertical scales of fluctuation. In TanDEM-X data over tropical forests at the Tapajos National Forest, Brazil, we show the results of potentially improving InSAR's Fourier coverage. This is done by estimating many Fourier frequencies with a single baseline, based on the assumption that sampling of the phase height of small (~1.5 m x 2.5 m) looks of TanDEM-X is equivalent to sampling the vertical structure of the forest; a spatial ergodicity. We show a similarity between the distribution of InSAR look-phase-heights (LPH) and lidar and field profiles over 0.25-ha areas. Using Fourier transforms of the histogram of LPH over 0.25 ha areas, biomass estimation improved by about 17% over using InSAR coherence and mean forest height, making it competitive with some lidar results. The RMS of biomasses estimated about field biomass was 48 Mg/ha, with biomasses as high as 430 Mg/ha, and an average of 174 Mg/ha. Perhaps LPH distributions bear a similarity to lidar and field profiles because shorter wavelengths (~3 cm) can penetrate holes in the canopy to scatter off a sample of the vegetation with each look. This "hole mechanism" favors higher frequencies, which are able to penetrate smaller holes. Because they increase the number of look samples, higher bandwidths are also preferred.

  5. GPS radio occultation with TerraSAR-X and TanDEM-X: sensitivity of lower troposphere sounding to the Open-Loop Doppler model

    Directory of Open Access Journals (Sweden)

    F. Zus

    2014-12-01

    Full Text Available The Global Positioning System (GPS radio occultation (RO technique provides valuable input for numerical weather prediction and is considered as a data source for climate related research. Numerous studies outline the high precision and accuracy of RO atmospheric soundings in the upper troposphere and lower stratosphere. In this altitude region (8–25 km RO atmospheric soundings are considered to be free of any systematic error. In the tropical (30° S–30° N Lower (<8 km Troposphere (LT, this is not the case; systematic differences with respect to independent data sources exist and are still not completely understood. To date only little attention has been paid to the Open Loop (OL Doppler model. Here we report on a RO experiment carried out on-board of the twin satellite configuration TerraSAR-X and TanDEM-X which possibly explains to some extent biases in the tropical LT. In two sessions we altered the OL Doppler model aboard TanDEM-X by not more than ±5 Hz with respect to TerraSAR-X and compare collocated atmospheric refractivity profiles. We find a systematic difference in the retrieved refractivity. The bias mainly stems from the tropical LT; there the bias reaches up to ±1%. Hence, we conclude that the negative bias (several Hz of the OL Doppler model aboard TerraSAR-X introduces a negative bias (in addition to the negative bias which is primarily caused by critical refraction in our retrieved refractivity in the tropical LT.

  6. The first outline of Calvin’s theology – the preface to the New Testament in the Olivétan Bible of 1535

    Directory of Open Access Journals (Sweden)

    W.H. Neuser

    2001-08-01

    Full Text Available The prefaces which Calvin wrote for the Bible translation of Olivétan (1535 conform to the general custom during the Reformation to translate the Bible into the vernacular and to publish these translations simultaneously with interpretation aids. In the preface published in the Olivétan Bible and preceding the New Testament translation, Calvin wants to indicate to the reader (in this case the heathen the correct way to approach the Bible. Although no captions or headings are included, the preface is structured very precisely, thus also presenting Calvin’s systematic kind of exposition. In order to show the heathen the way to salvation, Calvin indicates a way via prehistory (Gen. 1-11; Rom. 1-2; Acts 14 and 17, the Ten Commandments (Decalogue to the New Testament witness about Christ. The focus and goal of this path are the fulfilment of the law. Clearly the most noticeable result of the analysis of this preface is the “system of corresponding doctrines” found between creation and salvation. This specific approach of Calvin is a key to understanding his later theology. In the second part of the preface Calvin explains the main Biblical concepts of “Testament”, “Evangelium” and “Messiah”. Regarding this his view corresponds to Luther’s writing, “De captivitate Babylonica ...” (1520, and is perhaps dependent on it. The third part of the preface contains admonitions to Christians who are persecuted to assure them of their salvation. Admonitions to kings, princes, rulers, bishops and pastors are also included.

  7. Comparison of oral psoralen-UV-A with a portable tanning unit at home vs hospital-administered bath psoralen-UV-A in patients with chronic hand eczema - An open-label randomized controlled trial of efficacy

    NARCIS (Netherlands)

    van Coevorden, AM; Kamphof, WG; van Sonderen, E; Bruynzeel, DP; Coenraads, PJ

    2004-01-01

    Objective: To study whether oral psoralen-UV-A (PUVA) with a portable tanning unit at home is as effective as hospital-administered bath PUVA in patients with chronic hand eczema. Design: Open-label randomized controlled trial, with a 10-week treatment period and an 8-week follow-up period. Setting:

  8. [Gao Jingyi. Han yu yu bei Ou yu yan : Han yu yu Wula'er yu yan ji Yin Ou yu yan tong yuan tan jiu] / Ago Künnap

    Index Scriptorium Estoniae

    Künnap, Ago, 1941-

    2010-01-01

    Arvustus: Gao Jingyi. Han yu yu bei Ou yu yan : Han yu yu Wula'er yu yan ji Yin Ou yu yan tong yuan tan jiu = Chinese language and languages of northern Europe. Beijing : Zhongguo she hui ke xue chu ban she, 2008

  9. 多晶TaN1-δ薄膜的电输运性质研究∗%Electrical transp ort prop erties of p olycrystalline TaN1-δ films

    Institute of Scientific and Technical Information of China (English)

    周定邦; 刘新典; 李志青

    2015-01-01

    Tantalum nitride with a face-centered cubic structure (TaN1−δ) has received much attention due to its high hard-ness, good wear resistance, chemical inertness, thermodynamic stability, and low temperature coefficients of resistivity. First-principles calculations have indicated that cubic-TaN possesses metallic energy band structure, and the experi-mental results show that the carrier concentration in TaN1−δ films are comparable to that of normal metals. However, semiconductor-like temperature behavior of resistivity is often observed in polycrystalline TaN1−δ film. In the present paper, we systematically study the crystal structures and electrical transport properties of a series of TaN1−δ thin films, deposited on quartz glass substrates at different temperatures by the rf sputtering method. Both X-ray diffraction patterns and scanning electron microscope images indicate that the films are polycrystalline and have face-centered cubic structure. It is also found that the mean grain sizes of the films gradually increase with increasing depositing temperature. The temperature dependence of resistivity is measured from 350 K down to 2 K. The films with large grain sizes have a superconductor-insulator transition below ∼ 5 K, while the films with small grain sizes retain the semiconductor characteristics down to the minimum measuring temperature, 2 K. These phenomena are similar to that observed in superconductor-insulator granular composites. Above 5 K, the temperature coefficients of the resistivities of the films are all negative. In the temperature range between 10 and 30 K, the films show hopping transport properties which are often seen in metal-insulator granular systems, i. e. the logarithm of the resistivity (logρ) varies linearly with T−1/2, where T represents the measured temperature. The thermal fluctuation-induced tunneling conductive mechanism dominates the temperature behaviors of resistivities from 70 K up to 350 K. It can be seen that

  10. RELATIONSHIP BETWEEN P-T CONTITIONS OF TWO PHASES OF TAN-LU STRIKE-SLIP SHEAR ZONES AND DELAMINATION OF OROGENIC BELTS ON THE EASTERN MARGIN OF THE DABIE MOUNTAINS

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    The Tan-Lu fault zone joins the Dabie Mountains on its eastern margin, and offsets the Dabie and Sulu orogenic belts sinistrally for about 500 km. On the basis of calculation of temperature and pressure experienced by the two phases of the fault zone as well as the thermo-chronological information on mylonite from the earlier and later Tan-Lu fault zones on the eastern margin of the Dabie Mountains, this paper discusses the delamination history and uplifting magnitudes of the Dabie Mountains from earlier Jurassic to earlier Cretaceous. From mineral assemblages, mineral deformation and muscovite-chlorite geothermometry calculation, it is known that the temperature experienced by the two phases of Tan-Lu fault zones are between 400℃ and 450℃, and the confining pressures are between 0.25Gpa and 0.36GPa for the earlier shear zones and 0.24-0.39GPa for the late shear zones. According to the geobarometry of Si-in-phengite and by considering shear heating and tectonic over-pressure, it is concluded that the maximum formation depths for the two phases of the ductile shear zones are not more than 12 km.Differential formation depths for the two phases of shear zones are 1-2 km at most. At about 190 Ma and 128 Ma, the Tan-Lu fault zone experienced two phases of cooling events. During this period, the eastern margin of the Dabie Mountains experienced a tectonic calm period and no uplifting. According to information from the Tan-Lu fault zone, the uplifting magnitudes of the Dabie orogenic belts are not more than 12 km during the earlier Cretaceous.

  11. Lava emplacements at Shiveluch volcano (Kamchatka) from June 2011 to September 2014 observed by TanDEM-X SAR-Interferometry

    Science.gov (United States)

    Heck, Alexandra; Kubanek, Julia; Westerhaus, Malte; Gottschämmer, Ellen; Heck, Bernhard; Wenzel, Friedemann

    2016-04-01

    As part of the Ring of Fire, Shiveluch volcano is one of the largest and most active volcanoes on Kamchatka Peninsula. During the Holocene, only the southern part of the Shiveluch massive was active. Since the last Plinian eruption in 1964, the activity of Shiveluch is characterized by periods of dome growth and explosive eruptions. The recent active phase began in 1999 and continues until today. Due to the special conditions at active volcanoes, such as smoke development, danger of explosions or lava flows, as well as poor weather conditions and inaccessible area, it is difficult to observe the interaction between dome growth, dome destruction, and explosive eruptions in regular intervals. Consequently, a reconstruction of the eruption processes is hardly possible, though important for a better understanding of the eruption mechanism as well as for hazard forecast and risk assessment. A new approach is provided by the bistatic radar data acquired by the TanDEM-X satellite mission. This mission is composed of two nearly identical satellites, TerraSAR-X and TanDEM-X, flying in a close helix formation. On one hand, the radar signals penetrate clouds and partially vegetation and snow considering the average wavelength of about 3.1 cm. On the other hand, in comparison with conventional InSAR methods, the bistatic radar mode has the advantage that there are no difficulties due to temporal decorrelation. By interferometric evaluation of the simultaneously recorded SAR images, it is possible to calculate high-resolution digital elevation models (DEMs) of Shiveluch volcano and its surroundings. Furthermore, the short recurrence interval of 11 days allows to generate time series of DEMs, with which finally volumetric changes of the dome and of lava flows can be determined, as well as lava effusion rates. Here, this method is used at Shiveluch volcano based on data acquired between June 2011 and September 2014. Although Shiveluch has a fissured topography with steep slopes

  12. A wrist-walker exhibiting no "Uner Tan Syndrome": a theory for possible mechanisms of human devolution toward the atavistic walking patterns.

    Science.gov (United States)

    Tan, Uner

    2007-01-01

    After discovering two families with handicapped children exhibiting the "Uner Tan syndrome," the author discovered a man exhibiting only wrist-walking with no primitive mental abilities including language. According to his mother, he had an infectious disease with high fever as a three months old baby; as a result, the left leg had been paralyzed after a penicilline injection. This paralysis most probably resulted from a viral disease, possibly poliomyelitis. He is now (2006) 36 years old; the left leg is flaccid and atrophic, with no tendon reflexes; however, sensation is normal. The boy never stood up on his feet while maturing. The father forced him to walk upright using physical devices and making due exercises, but the child always rejected standing upright and walking in erect posture; he always preferred wrist-walking; he expresses that wrist-walking is much more comfortable for him than upright-walking. He is very strong now, making daily body building exercises, and walking quite fast using a "three legs," although he cannot stand upright. Mental status, including the language and conscious experience, is quite normal. There was no intra-familiar marriage as in the two families mentioned earlier, and there is no wrist-walking in his family and relatives. There were no cerebellar signs and symptoms upon neurological examination. The brain-MRI was normal; there was no atrophy in cerebellum and vermis. It was concluded that there may be sporadic wrist-walkers exhibiting no "Uner Tan Syndrome." The results suggest that the cerebellum has nothing to do with human wrist-walking, which may rather be an atavistic trait appearing from time to time in normal individuals, indicating a live model for human reverse evolution. It was concluded that pure quadrupeds may sporadically appear due to random fluctuations in genotypes and/or environmental factors (hormonal or nutritional); the human development following the human evolution may be stopped in the stage of

  13. Efecto de los biorreguladores del crecimiento en la embriogénesis somática de mandarina Cleopatra (Citrus reshni Hort. ex Tan.

    Directory of Open Access Journals (Sweden)

    Reina M. Hernández

    2010-01-01

    Full Text Available La regeneración de plantas in vitro vía embriogénesis somática es un prerrequisito indispensable, para la aplicación de algunas herramientas de la Biotecnología en la mejora genética de las plantas y más aún en el caso de los cítricos. Para aumentar la cantidad de estos cultivos en las plantaciones, se pueden usar técnicas de propagación in vitro, como la embriogénesis somática, que requieren de medios de cultivo artificiales y fitohormonas. Debido a los altos costos de las fitohormonas, una alternativa cubana es el uso de biorreguladores del crecimiento de producción nacional, como el Pectimorf ® y los análogos de brasinoesteroides: Biobras-6 y MH5. Estos biorreguladores, al igual que el 24-Epibrasinólido, son efectivos en los procesos morfogenéticos, generalmente a bajas concentraciones, como sustitutos o complementos de las auxinas y citoquininas. Se empleó la técnica de cultivo de óvulos fecundados in vitro, para obtener una línea celular embriogénica de Citrus reshni Hort. ex Tan y como fuente de óvulos fecundados, se tomaron ovarios de dicha especie procedentes de árboles de la Estación de Cítricos de Ceiba del Agua en Caimito, provincia La Habana. Para el mantenimiento de la línea embriogénica, se utilizaron callos embriogénicos de la línea celular establecida. Este trabajo estuvo dirigido a evaluar el efecto del Pectimorf ® y los brasinoesteroides, MH5, Biobras-6 y 24-Epibrasinólido, en la obtención y el mantenimiento de la línea celular embriogénica de mandarina Cleopatra (Citrus reshni Hort. ex Tan.. En los resultados se pudo comprobar un incremento en la masa fresca del callo embriogénico en un menor tiempo de cultivo mediante el uso de estos biorreguladores.

  14. Decorative Performance of Transparent Resin on the Vegetable Tanned Footwear%透明树脂在植鞣革鞋靴上的装饰性表现

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    With its outstanding transparency, strong and modern, simple molding methods, the transparent resin has a strong effect on the traditional materials market. In this paper, the crystal clear sense of transparent resin was applied to the traditional vegetable tanned footwear in the form of surface decoration. It can be found through experiments, epoxy resin and unsaturated polyester resin are preferable in many transparent resin:A and B plastic resin of the epoxy according to 1∶3 ratio to mix, wetting the leather surface to be soft, and then which is to drop in the prior beat of leather surface, to place in a constant temperature oven, it can form a transparent and glossy effect on the vegetable tanned leather.%透明树脂以其突出的透明度、强烈的现代气息、简单的成型方式等不断冲击着传统材料的市场。本文将透明树脂这种晶莹剔透感以表面装饰的形式应用到传统的植鞣革鞋靴上,形成强烈的对比。但透明树脂种类繁多,而通过实验发现,环氧树脂和不饱和聚酯树脂在皮革表面的附着力最好,故以其为材料确定了透明树脂在皮革上的装饰性表现方法:将环氧树脂A胶、B胶,按照1∶3的比例调配,润湿皮革表面待皮革变软,再将其滴在事先敲打好的皮革表面凹槽中,然后放在一定温度的烘箱中等树脂凝固,便可以在树羔皮上形成透明又光泽的效果。

  15. Fuzzy: modelo matemático do subjetivo

    Directory of Open Access Journals (Sweden)

    Heriberto Roman Flores

    1986-11-01

    Full Text Available This work discusses basic information about fundamental concepts in the theory of fuzzy sets, and presents a new view point of things existing in various specific studies in the areas of topology, vector space measurement and integration, statistics, etc. The objectives were: 1. Compare these new concepts with tradicional ones in the classical theory of sets and 2. Try, in the teaching form, to interpret this mathematical model which reflects, in a clearer way, on human behavior. O presente trabalho pretende ser uma divulgação básica dos conceitos fundamentais da Teoria de Conjuntos Fuzzy, como uma forma de mostrar um novo enfoque de Matemática, da qual já existem estudos específicos no terreno da Topologia, Espaços Vetoriais, Medida e Integração, Estatística, etc. Tem os seguintes objetivos: lo. comparar estes novos conceitos com os conceitos tradicionais da teoria de conjuntos clássica e; 2o. tentar de forma didática, interpretar este novo modelo matemático, que reflete, de maneira mais clara, o comportamento humano.

  16. DEGRADACIÓN MEDIOAMBIENTAL: UNA PERSPECTIVA DESDE EL BIENESTAR SUBJETIVO

    Directory of Open Access Journals (Sweden)

    Marta Suárez-Varela Maciá

    2014-01-01

    Full Text Available There is ample evidence that the environment is in serious danger. The problem posed by environmental degradation is a very complex one and it depends on both ecological and human-related factors. The understanding of the relationship between environmental and social systems is, therefore, key in order to design strategies and public policies addressing environmental problems. The objective of this paper is analyzing the issue of environmental degradation, as well as illustrating the contributions made by ecological economics and, concretely, a branch of it that uses measures of subjective wellbeing, in the search for solutions to environmental problems. Studies on wellbeing suggest that environmental degradation has a very negative effect on subjective well-being. Besides, preoccupation about environmental degradation itself has also a negative effect on people’s happiness. Moreover, environmental responsible behaviors have been found to show a positive relationship with subjective well-being. Studies on well-being can also make a great contribution in the investigation of the causes of the knowledge-concern-action paradox. All these considerations are of great importance for the design and implementation of public policies aimed at putting an end to environmental degradation, as well as to foster a growing consciousness among population on the need for a definitive solution to environmental problems.

  17. Vértigo postural paroxístico benigno subjetivo

    OpenAIRE

    Karle P,Macarena; Fernández R,Lara; Bahamonde S,Héctor

    2014-01-01

    El vértigo postural paroxístico benigno (VPPB) es el trastorno vestibular más frecuente y se asocia a alto grado de morbilidad, impacto psicosocial y gastos médicos. El diagnóstico se basa en la anamnesis y examen físico incluyendo maniobras específicas para desencadenarlo. En algunos casos, podemos observar pacientes que presentan clínica de VPPB pero al realizar la maniobra de Dix-Hallpike no presentan nistagmo observable a simple vista, ni medible con lentes de frenzel ni videonistagmograf...

  18. Correlation between bulk- and surface chemistry of Cr-tanned leather and the release of Cr(III) and Cr(VI).

    Science.gov (United States)

    Hedberg, Yolanda S; Lidén, Carola; Odnevall Wallinder, Inger

    2014-09-15

    About 1-3% of the adult general population in Europe is allergic to chromium (Cr). The assessment of the potential release of Cr(III) and Cr(VI) from leather is hence important from a human health and environmental risk perspective. The Cr(VI) content in leather was recently restricted in the European Union. The aim of this study was to assess possible correlations between the bulk and surface chemistry of leather, released Cr(III) and Cr(VI), and capacities of co-released leather specific species to reduce and complex released Cr. Four differently tanned leathers were characterized by scanning electron microscopy with energy dispersive spectroscopy, X-ray photoelectron spectroscopy, attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, and the diphenylcarbazide colorimetric method. Their characteristics were compared with results on Cr(III) and Cr(VI) release into artificial sweat (ASW, pHleather-specific species were shown to reduce Cr(VI), both in ASW and in PB. Their reduction capacities correlated with findings of the surface content of Cr and of released Cr. Leather samples without this capacity, and with less aromatic surface groups visible by ATR-FTIR, revealed Cr(VI) both at the surface and in solution (PB).

  19. The Triple Salt Sr14[Ta4N13][TaN4]O-A Nitridotantalate Oxide with 19-fold Rock Salt Superstructure.

    Science.gov (United States)

    Wörsching, Matthias; Daiger, Martin; Hoch, Constantin

    2017-02-21

    A new structure motif in nitridometalate chemistry is the tetracatena-nitridotantalate anion [Ta4N13](19-). It occurs in the crystal structure of the triple salt Sr14[Ta4N13][TaN4]O (monoclinic, space group P21/c with a = 15.062(2) Å, b = 7.2484(6) Å, c = 24.266(3) Å, and β = 97.280(10)(o)) together with ortho-tantalate and isolated oxide anions. Synthesis followed a new approach with employment of Sr surplus and reductive conditions aimed at the preparation of subvalent compounds. The new structure type was established on the basis of single-crystal X-ray diffraction data and also Rietveld refinement. It is a complex superstructure of the rock salt structure type with Ta and Sr atoms forming the face-centered cubic packing and N and O atoms occupying 18/19 of the octahedral voids. We discuss structure and stability of the triple salt with respect to other known nitridometalates and the use of this triple salt for preparative access toward new metal-rich compounds in this field.

  20. 文化的融合--析谭盾音乐风格%The fusion of culture--music style of Tan Dun

    Institute of Scientific and Technical Information of China (English)

    许洁

    2013-01-01

      在当今多元文化的社会文化背景下出现了众多各具特色的音乐家,谭盾的音乐就是在这种文化背景下出现的产物:他不仅把远古的、富有中国传统特色的音乐带到了世界,又把西方的音乐手法运用到了中国的音乐上,形成了他的个人音乐风格。本文分析其音乐风格变化历程和多元文化背景,体现了多元音乐文化背景下其音乐风格的东西方融合。%In today's cultural context of multicultural society, has many characteristics of musicians, Tan Dun’s music is the product of cultural background:he is not only take the old, the rich characteristics of Chinese traditional music to the world, and the Western musical techniques are applied to Chinese music, form his music style. This paper analyzes the history and multicultural background of musical style, reflects the East-West fusion of musical styles under the background of pluralistic music culture.

  1. Application of the Health Belief Model to U.S. Magazine Text and Image Coverage of Skin Cancer and Recreational Tanning (2000-2012).

    Science.gov (United States)

    McWhirter, Jennifer E; Hoffman-Goetz, Laurie

    2016-01-01

    The health belief model (HBM) has been widely used to inform health education, social marketing, and health communication campaigns. Although the HBM can explain and predict an individual's willingness to engage in positive health behaviors, its application to, and penetration of the underlying constructs into, mass media content has not been well characterized. We examined 574 articles and 905 images about skin cancer and tanning risks, behaviors, and screening from 20 U.S. women's and men's magazines (2000-2012) for the presence of HBM constructs: perceived susceptibility, perceived severity, perceived benefits, perceived barriers, self-efficacy, and cues to action. Susceptibility (48.1%) and severity (60.3%) information was common in text. Perceived benefits (36.4%) and barriers (41.5%) to prevention of skin cancer were fairly equally mentioned in articles. Self-efficacy (48.4%) focused on sunscreen use. There was little emphasis on HBM constructs related to early detection. Few explicit cues to action about skin cancer appeared in text (12.0%) or images (0.1%). HBM constructs were present to a significantly greater extent in text versus images (e.g., severity, 60.3% vs. 11.3%, respectively, χ(2) = 399.51, p benefits prevention, 36.4% vs. 8.0%, respectively, χ(2) = 184.80, p < .0001), suggesting that readers are not visually messaged in ways that would effectively promote skin cancer prevention and early detection behaviors.

  2. Insights into Tan Spot and Stem Rust Resistance and Susceptibility by Studying the Pre-Green Revolution Global Collection of Wheat

    Science.gov (United States)

    Abdullah, Sidrat; Sehgal, Sunish Kumar; Jin, Yue; Turnipseed, Brent; Ali, Shaukat

    2017-01-01

    Tan spot (TS), caused by the fungus Pyrenophora tritici-repentis (Died) Drechs, is an important foliar disease of wheat and has become a threat to world wheat production since the 1970s. In this study a globally diverse pre-1940s collection of 247 wheat genotypes was evaluated against Ptr ToxA, P. tritici-repentis race 1, and stem rust to determine if; (i) acquisition of Ptr ToxA by the P. tritici-repentis from Stagonospora nodorum led to increased pathogen virulence or (ii) incorporation of TS susceptibility during development stem rust resistant cultivars led to an increase in TS epidemics globally. Most genotypes were susceptible to stem rust; however, a range of reactions to TS and Ptr ToxA were observed. Four combinations of disease-toxin reactions were observed among the genotypes; TS susceptible-Ptr ToxA sensitive, TS susceptible-Ptr ToxA insensitive, TS resistant-Ptr ToxA insensitive, and TS resistant-Ptr ToxA toxin sensitive. A weak correlation (r = 0.14 for bread wheat and −0.082 for durum) was observed between stem rust susceptibility and TS resistance. Even though there were no reported epidemics in the pre-1940s, TS sensitive genotypes were widely grown in that period, suggesting that Ptr ToxA may not be an important factor responsible for enhanced prevalence of TS.

  3. Enzyme-mediated bacterial biodegradation of an azo dye (C.I. Acid blue 113): reuse of treated dye wastewater in post-tanning operations.

    Science.gov (United States)

    Senthilvelan, T; Kanagaraj, J; Panda, R C

    2014-11-01

    "Dyeing" is a common practice used to color the hides during the post-tanning operations in leather processing generating plenty of wastewater. The waste stream containing dye as pollutant is severely harmful to living beings. An azo dye (C.I. Acid Blue 113) has been biodegraded effectively by bacterial culture mediated with azoreductase enzyme to reduce the pollution load in the present investigation. The maximum rate of dye degradation was found to be 96 ± 4 and 92 ± 4 % for the initial concentrations of 100 and 200 mg/l, respectively. The enzyme activity was measured using NADH as a substrate. Fourier transform infrared spectroscopy (FT-IR) analysis was confirmed that the transformation of azo linkage could be transformed into N2 or NH3 or incorporated into complete biomass. Breaking down of dye molecules to various metabolites (such as aniline, naphthalene-1,4-diamine, 3-aminobenzenesulfonic acid, naphthalene-1-sulfonic acid, 8-aminonaphthalene-1-sulfonic acid, 5,8-diaminonaphthalene-1-sulfonic acid) was confirmed by gas chromatography and mass spectra (GC-MS) and mass (electrospray ionization (ESI)) spectra analysis. The treated wastewater could be reused for dyeing operation in the leather processing, and the properties of produced leather were evaluated by conventional methods that revealed to have improved dye penetration into the grain layer of experimental leather sample and resulted in high levelness of dyeing, which helps to obtain the desired smoothness and soft leather properties.

  4. 1-Aminocyclopropane-1-Carboxylic Acid Transported from Roots to Shoots Promotes Leaf Abscission in Cleopatra Mandarin (Citrus reshni Hort. ex Tan.) Seedlings Rehydrated after Water Stress.

    Science.gov (United States)

    Tudela, D; Primo-Millo, E

    1992-09-01

    The effect of water stress and subsequent rehydration on 1-aminocyclopropane-1-carboxylic acid (ACC) content, ACC synthase activity, ethylene production, and leaf abscission was studied in Cleopatra mandarin (Citrus reshni Hort. ex Tan.) seedlings. Leaf abscission occurred when drought-stressed plants were allowed to rehydrate, whereas no abscission was observed in plants under water stress conditions. In roots of water-stressed plants, a high ACC accumulation and an increase in ACC synthase activity were observed. Neither increase in ACC content nor significant ethylene production were detected in leaves of water-stressed plants. After rehydration, a sharp rise in ACC content and ethylene production was observed in leaves of water-stressed plants. Content of ACC in xylem fluid was 10-fold higher in plants rehydrated for 2 h after water stress than in nonstressed plants. Leaf abscission induced by rehydration after drought stress was inhibited when roots or shoots were treated before water stress with aminooxyacetic acid (AOA, inhibitor of ACC synthase) or cobalt ion (inhibitor of ethylene-forming enzyme), respectively. However, AOA treatments to shoots did not suppress leaf abscission. The data indicate that water stress promotes ACC synthesis in roots of Cleopatra mandarin seedlings. Rehydration of plants results in ACC transport to the shoots, where it is oxidized to ethylene. Subsequently, this ethylene induces leaf abscission.

  5. The Problems and Solution of Rabbit Skin in the processing of Tanning and Dying%我国兔皮鞣染加工面临的问题及对策

    Institute of Scientific and Technical Information of China (English)

    张宗才; 李敏

    2015-01-01

    This paper summarizes the environmental pollution problems in the process of rabbit skin tanning and dying, the limited quantity of the harmful chemicals in rabbit fur products, and the discharge standards from leather and fur processing industrial water pollutant effecting on the fur processing industrial. The techno⁃logical measures for ecological tanning and dyeing dressing of rabbit skin are propose.%本文概述了兔毛皮在鞣染过程中存在的环境污染问题,兔皮制品中有害化学物质的限量,以及新发布的《制革及毛皮加工工业水污染物排放标准》对兔皮加工企业的影响;提出了为满足兔毛皮生态指标要求的技术措施与对策。

  6. A search for neutral Higgs bosons at high tan beta in multi-jet events from p anti-p collisions at s**(1/2) = 1960-GeV

    Energy Technology Data Exchange (ETDEWEB)

    Haas, Andrew C

    2004-06-01

    The Higgs mechanism preserves the gauge symmetries of the Standard Model while giving masses to the W, Z bosons. Supersymmetry, which protects the Higgs boson mass scale from quantum corrections, predicts at least 5 Higgs bosons, none of which has been directly observed. This thesis presents a search for neutral Higgs bosons, produced in association with bottom quarks. The production rate is greatly enhanced at large values of the Supersymmetric parameter tan {beta}. High-energy p{bar p} collision data, collected from Run II of the Fermilab Tevatron using the D0 detector, are analyzed. In the absence of a signal, values of tan {beta} > 80-120 are excluded at 95% Confidence Level (C.L.), depending on the (CP-odd) neutral Higgs boson mass (studied from 100 to 150 GeV/c{sup 2}).

  7. An Analysis of the"Three Literary Origins"in A Sequence to Jinyangqiu by Tan Daoluan%论檀道鸾的文学“三元(源)”论

    Institute of Scientific and Technical Information of China (English)

    江山

    2014-01-01

    在专记东晋中、晚期编年史的《续晋阳秋》中,檀道鸾将文学作为独立学科加以置评。他率先把“独尊”的儒学经典《诗经》与楚辞、前秦百家之言并列,提出了中国文学“体则《诗》《骚》,傍综百家”的“三元”论,并以此“三元”标准评论汉代“赋颂”、建安诗歌和西晋末年诗作。在评价两晋文学时,檀道鸾强调“庄、老”影响下产生的玄学及“玄胜之谈”对两晋道佛文学流变的重要影响。檀道鸾的文学流变史观,显现了南北分裂时期学思活跃、文人反思文化历史、重新界定文学源头的历史现实以及檀氏所历地域文化、家风传统、个人倾向互动等对其文史评论的影响。檀道鸾文学评论的自觉观点,是西晋虞挚的《文章流别论》,与南朝刘勰《文心雕龙》、钟嵘《诗品》等文学评论之间的重要环节。%Tan Daoluan in the mid-iffth century compiled"A Sequence to Jinyangqiu"( Xu Jin Yangqiu ), a chronicle of the second half of the Eastern Jin. Tan Daoluan treated literature as a separate category in his literary criticism, independent of the Confucian canon. In Tan's view, Chinese literature had three equally important origins: The Book of Songs ( Shi Jing ), Songs of the Chu ( Chu Ci ), and the Hundred Schools ( bai jia ) of pre-Qin philosophy. Tan attributed the rhapsodies ( fu songs ) of the Han Dynasty, poems and essays of the Jian'an Reign, and the most noted poetry at the end of Western Jin to the inlfuence of these three sources of literature. Commenting on major literary trends of Western and Eastern Jin—poems inspired by Daoism and Buddhism, Tan stressed the key inlfuence of Mysterious Learning ( xuan xue ), which he considered to derive from"Laozi"and"Zhuangzi"of the Hundred Schools. Living in the era of the Great Division and a dynamic intellectual atmosphere, Tan re-evaluated cultural history and redeifned the origins of

  8. Al-‘Alāqah bayn al-Dīn wa al-Dawlah bi Indūnīsiyā: Tan Malaka wa Ārā’uhu al-Siyāsīyah

    Directory of Open Access Journals (Sweden)

    Khairil Azhar

    2014-03-01

    Full Text Available The present article is about the relation between religion and state as it is discussed by a prominent figure whose contributions to Indonesian politic are out of question. He is Tan Malaka, who has been considered as a radical Marxist activist. Through his works, including Madilog: Materialisme, Dialektika, Logika; Islam dalam Tinjauan Madilog Dari Penjara ke Penjara; Naar De Republiek Indonesie; Tan Malaka shows his deep appreciation to Marxism. That is why, in these works, be pays a great attention to liberation movement and freedom for people both from colonial domination and from feudalism rooted in Indonesian culture.Copyright (c 2014 by SDI. All right reserved.DOI: 10.15408/sdi.v7i2.711

  9. Method for evaluating subjective states of awareness that accompany recognition: adaptation for use in Portuguese-speaking patients with schizophrenia Adaptação para o português de método de avaliação dos estados subjetivos de consciência que acompanham o reconhecimento para uso em pacientes com esquizofrenia

    Directory of Open Access Journals (Sweden)

    Marcos Aurélio Martins Ribeiro

    2005-12-01

    Full Text Available OBJECTIVE: Memory is composed of several systems and processes, and recognition can be accompanied by two subjective states of consciousness: autonoetic awareness, which characterizes conscious recollection; and noetic (or semantic awareness, related to feelings of familiarity. The objective of this study was to describe the adaptation to Portuguese of an experiential procedure for investigation of states of awareness that accompany recognition. METHODS: Development of the material (word list and instructions permitting manipulation of the level of information processing; translation/adaptation of the original instructions to Portuguese; and application of the procedure in healthy volunteers and patients with schizophrenia. Manipulation of the level of processing consisted in requiring, during the learning phase, that subjects form a phrase or count the number of letters of the words presented. The level of processing, documented in healthy volunteers, should be expressed by greater conscious recollection of words used to form phrases than of words for which letters were counted. In addition, there should be no change in the proportion of recognition based on feelings of familiarity. RESULTS: The procedure was first applied in six healthy volunteers, in whom the processing level effect was clearly reproducible. Subsequently, it was used in patients with schizophrenia, who understood and followed the instructions perfectly. There was also a clear processing level effect in the patient group. CONCLUSION: The Portuguese version of this method can be used in our milieu, even in patients with schizophrenia, allowing the study of memory alterations accompanying this mental disorder.OBJETIVO: A memória é composta por vários sistemas e processos e o reconhecimento pode ser acompanhado por dois estados subjetivos de consciência: a consciência autonoética, que caracteriza a rememoração consciente, e a noética, relacionada a sentimentos de

  10. The non-peptidic delta opioid receptor agonist TAN-67 enhances dopamine efflux in the nucleus accumbens of freely moving rats via a mechanism that involves both glutamate and free radicals.

    NARCIS (Netherlands)

    Fusa, K.; Takahashi, I.; Watanabe, S.; Aono, Y.; Ikeda, H.; Saigusa, T.; Nagase, H.; Suzuki, T.; Koshikawa, N.; Cools, A.R.

    2005-01-01

    The activation of the delta-opioid receptors in the nucleus accumbens is known to induce a large and rapid increase of accumbal dopamine efflux. (+/-)-TAN-67 (2-methyl-4a(alpha)-(3-hydroxyphenyl)-1,2,3,4,4a,5,12,12a(alpha)-octahydro -quinolino[2,3,3,-g]isoquinoline) is a centrally acting non-peptidi

  11. Study of the effectiveness of polyamide reverse osmosis membranes in the recovery of Cr(III) in tanning. Estudio sobre la efectividad de las membranas de osmosis inversa de poliamida en la recuperacion de Cr(III) en curticion

    Energy Technology Data Exchange (ETDEWEB)

    Galan, M.; Gonzalez, C.; Llorens, J.; Mans, C. (Barcelona Univ., Tarragona (Spain). Dept. d' Enginyeria Quimica i Bioqumica)

    1992-12-01

    Laboratory experiments on reverse osmosis using water containing Cr2(SO4)3 and a Film Tech Corporation TW30-2514 membrane are described. The type of cell employed allowed the membrane's rejection of Cr(III) to be measured with a high degree of accuracy. Tests were carried out varying the Cr concentration, the pressure and the temperature. The results obtained have implications regarding the suitability of reverse osmosis in recovering Cr from tanning waste water. (Author)

  12. In Situ Ramp Anneal X-ray Diffraction Study of Atomic Layer Deposited Ultrathin TaN and Ta 1-x Al x N y Films for Cu Diffusion Barrier Applications

    Energy Technology Data Exchange (ETDEWEB)

    Consiglio, S.; Dey, S.; Yu, K.; Tapily, K.; Clark, R. D.; Hasegawa, T.; Wajda, C. S.; Leusink, G. J.; Diebold, A. C.

    2016-01-01

    Ultrathin TaN and Ta1-xAlxNy films with x = 0.21 to 0.88 were deposited by atomic layer deposition (ALD) and evaluated for Cu diffusion barrier effectiveness compared to physical vapor deposition (PVD) grown TaN. Cu diffusion barrier effectiveness was investigated using in-situ ramp anneal synchrotron X-ray diffraction (XRD) on Cu/1.8 nm barrier/Si stacks. A Kissinger-like analysis was used to assess the kinetics of Cu3Si formation and determine the effective activation energy (Ea) for Cu silicidation. Compared to the stack with a PVD TaN barrier, the stacks with the ALD films exhibited a higher crystallization temperature (Tc) for Cu silicidation. The Ea values of Cu3Si formation for stacks with the ALD films were close to the reported value for grain boundary diffusion of Cu whereas the Ea of Cu3Si formation for the stack with PVD TaN is closer to the reported value for lattice diffusion. For 3 nm films, grazing incidence in-plane XRD showed evidence of nanocrystallites in an amorphous matrix with broad peaks corresponding to high density cubic phase for the ALD grown films and lower density hexagonal phase for the PVD grown film further elucidating the difference in initial failure mechanisms due to differences in barrier crystallinity and associated phase.

  13. Determination Condition Optimization of Vegetable Tanning Agents Concentrations by Folin- Ciocalteu Colorimetry%Folin—Ciocalteu比色法测定植物鞣剂浓度条件的优化

    Institute of Scientific and Technical Information of China (English)

    陈玉峰; 李彦春

    2012-01-01

    通过正交试验对福林酚比色法测定植物鞣剂的条件进行了优化,结果表明:测定最佳条件为福林酚试剂浓度为1:1.碳酸钠的质量分数7.5%,50℃下反应30min,经分析,该法的稳定性、重现性好,精密度高。在最佳反应条件下所得数据的线性拟合结果表明,4种植物鞣剂的标准曲线线性关系良好,因此,可以利用福林酚比色法测定植物鞣剂的浓度。%By optimizing the conditions of Folin - Ciocalteu colorimetry via orthogonal test, a study on determining the concentration of vegetable tanning agents was conducted. The results show that the best conditions is as follows : Folin - Ciocaheu concentration is 1: 1, mass fraction of sodium carbonate is 7.5%, reaction temperature is 50℃ and reaction time is 30rain. Folin - Ciocalteu colorimetry is convenient, rapid, accurate and reliable for the suhs of linear fitting of data under the optimum condition show ar relationship. So Folin -Ciocalteu colorimetry could be used determination of the concentration of vegetable tanning agents. The rethat the standard curve of four to determine the concentration vegetable tanning agents has good lineof vegetable tanning agents.

  14. Tungo sa Hardin ng Tao: “Si Bonifacio ang pinakauna, hindi lamang sa Pilipinas, kundi sa buong Indonesia, oo, sa buong Asia na nanggaling sa, at edukado bilang, proletaryado, na nag-organisa ng mga proletaryo.” ni Tan Malaka

    Directory of Open Access Journals (Sweden)

    Ramon Guillermo

    2013-06-01

    Full Text Available Salin ito ng sanaysay na “Ke Taman Manusia” (sinulat taong 1943 nakathang-isip ng Indones na lider komunista na si Tan Malaka o Ibrahimgelar Datuk Tan Malaka (1897-1949 hinggil sa isang “Taman Manusia”o “Hardin ng Tao” na itatayo ng darating na Republika ng Indonesia sahinaharap. Dahil sa futuristiko nitong perspektiba, maihahalintuladang obrang ito ni Tan Malaka sa sanaysay ni Jose Rizal na “Filipinasdentro de cien años” (Ang Pilipinas sa loob ng isang dantaon (1891.Galing ito sa napakalaking akdang pilosopikal ni Tan Malaka napinamagatang Madilog: Materialisme, Dialektika, Logika (1948(Larawan 1 at tila tumatayo bilang pansarang mga repleksyon nito(Magnis-Suseno, 2005, pp. 205-233. Ang akdang ito ay unanginilathala noong 1951 ng Terbitan Widjaya sa Jakarta.

  15. Deletion of C7L and K1L genes leads to significantly decreased virulence of recombinant vaccinia virus TianTan.

    Directory of Open Access Journals (Sweden)

    Zheng Liu

    Full Text Available The vaccinia virus TianTan (VTT has been modified as an HIV vaccine vector in China and has shown excellent performance in immunogenicity and safety. However, its adverse effects in immunosuppressed individuals warrant the search for a safer vector in the following clinic trails. In this study, we deleted the C7L and K1L genes of VTT and constructed six recombinant vaccinia strains VTT△C7L, VTT△K1L, VTT△C7LK1L, VTKgpe△C7L, VTKgpe△K1L and VTT△C7LK1L-gag. The pathogenicity and immunogenicity of these recombinants were evaluated in mouse and rabbit models. Comparing to parental VTT, VTT△C7L and VTT△K1L showed significantly decreased replication capability in CEF, Vero, BHK-21 and HeLa cell lines. In particular, replication of VTT△C7LK1L decreased more than 10-fold in all four cell lines. The virulence of all these mutants were decreased in BALB/c mouse and rabbit models; VTT△C7LK1L once again showed the greatest attenuation, having resulted in no evident damage in mice and erythema of only 0.4 cm diameter in rabbits, compared to 1.48 cm for VTT. VTKgpe△C7L, VTKgpe△K1L and VTT△C7LK1L-gag elicited as strong cellular and humoral responses against HIV genes as did VTKgpe, while humoral immune response against the vaccinia itself was reduced by 4-8-fold. These data show that deletion of C7L and K1L genes leads to significantly decreased virulence without compromising animal host immunogenicity, and may thus be key to creating a more safe and effective HIV vaccine vector.

  16. Deletion of C7L and K1L genes leads to significantly decreased virulence of recombinant vaccinia virus TianTan.

    Science.gov (United States)

    Liu, Zheng; Wang, Shuhui; Zhang, Qicheng; Tian, Meijuan; Hou, Jue; Wang, Rongmin; Liu, Chang; Ji, Xu; Liu, Ying; Shao, Yiming

    2013-01-01

    The vaccinia virus TianTan (VTT) has been modified as an HIV vaccine vector in China and has shown excellent performance in immunogenicity and safety. However, its adverse effects in immunosuppressed individuals warrant the search for a safer vector in the following clinic trails. In this study, we deleted the C7L and K1L genes of VTT and constructed six recombinant vaccinia strains VTT△C7L, VTT△K1L, VTT△C7LK1L, VTKgpe△C7L, VTKgpe△K1L and VTT△C7LK1L-gag. The pathogenicity and immunogenicity of these recombinants were evaluated in mouse and rabbit models. Comparing to parental VTT, VTT△C7L and VTT△K1L showed significantly decreased replication capability in CEF, Vero, BHK-21 and HeLa cell lines. In particular, replication of VTT△C7LK1L decreased more than 10-fold in all four cell lines. The virulence of all these mutants were decreased in BALB/c mouse and rabbit models; VTT△C7LK1L once again showed the greatest attenuation, having resulted in no evident damage in mice and erythema of only 0.4 cm diameter in rabbits, compared to 1.48 cm for VTT. VTKgpe△C7L, VTKgpe△K1L and VTT△C7LK1L-gag elicited as strong cellular and humoral responses against HIV genes as did VTKgpe, while humoral immune response against the vaccinia itself was reduced by 4-8-fold. These data show that deletion of C7L and K1L genes leads to significantly decreased virulence without compromising animal host immunogenicity, and may thus be key to creating a more safe and effective HIV vaccine vector.

  17. Estimating Digital Terrain Model in forest areas from TanDEM-X and Stereo-photogrammetric technique by means of Random Volume over Ground model

    Science.gov (United States)

    Lee, S. K.; Fatoyinbo, T. E.; Lagomasino, D.; Osmanoglu, B.; Feliciano, E. A.

    2015-12-01

    The Digital Terrain Model (DTM) in forest areas is invaluable information for various environmental, hydrological and ecological studies, for example, watershed delineation, vegetation canopy height, water dynamic modeling, forest biomass and carbon estimations. There are few solutions to extract bare-earth Digital Elevation Model information. Airborne lidar systems are widely and successfully used for estimating bare-earth DEMs with centimeter-order accuracy and high spatial resolution. However, expensive cost of operation and small image coverage prevent the use of airborne lidar sensors for large- or global-scale. Although IceSAT/GLAS (Ice, Cloud, and Land Elevation Satellite/Geoscience Laser Altimeter System) lidar data sets have been available for global DTM estimate with relatively lower cost, the large footprint size of 70 m and the interval of 172 m are insufficient for various applications. In this study we propose to extract higher resolution bare-earth DEM over vegetated areas from the combination of interferometric complex coherence from single-pass TanDEM-X (TDX) data at HH polarization and Digital Surface Model (DSM) derived from high-resolution WorldView (WV) images by means of random volume over ground (RVoG) model. The RVoG model is a widely and successfully used model for polarimetric SAR interferometry (Pol-InSAR) forest canopy height inversion. The bare-earth DEM is obtained by complex volume decorrelation in the RVoG model with the DSM estimated by stereo-photogrammetric technique. Forest canopy height can be estimated by subtracting the estimated bare-earth model from the DSM. Finally, the DTM from airborne lidar system was used to validate the bare-earth DEM and forest canopy height estimates.

  18. Correlation between bulk- and surface chemistry of Cr-tanned leather and the release of Cr(III) and Cr(VI)

    Energy Technology Data Exchange (ETDEWEB)

    Hedberg, Yolanda S., E-mail: yolanda@kth.se [KTH Royal Institute of Technology, School of Chemical Science and Engineering, Department of Chemistry, Division of Surface and Corrosion Science, SE-10044 Stockholm (Sweden); Institute of Environmental Medicine, Karolinska Institutet, Box 210, SE-17177 Stockholm (Sweden); Lidén, Carola, E-mail: carola.liden@ki.se [Institute of Environmental Medicine, Karolinska Institutet, Box 210, SE-17177 Stockholm (Sweden); Odnevall Wallinder, Inger, E-mail: ingero@kth.se [KTH Royal Institute of Technology, School of Chemical Science and Engineering, Department of Chemistry, Division of Surface and Corrosion Science, SE-10044 Stockholm (Sweden)

    2014-09-15

    Graphical abstract: - Highlights: • Released reducing/complexing leather-specific species can reduce released Cr(VI). • No co-released species enable the formation of Cr(VI) in solution. • The major Cr species released from leather in phosphate buffer was Cr(III) (>82%). • No Cr(VI) was released into artificial sweat. - Abstract: About 1–3% of the adult general population in Europe is allergic to chromium (Cr). The assessment of the potential release of Cr(III) and Cr(VI) from leather is hence important from a human health and environmental risk perspective. The Cr(VI) content in leather was recently restricted in the European Union. The aim of this study was to assess possible correlations between the bulk and surface chemistry of leather, released Cr(III) and Cr(VI), and capacities of co-released leather specific species to reduce and complex released Cr. Four differently tanned leathers were characterized by scanning electron microscopy with energy dispersive spectroscopy, X-ray photoelectron spectroscopy, attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, and the diphenylcarbazide colorimetric method. Their characteristics were compared with results on Cr(III) and Cr(VI) release into artificial sweat (ASW, pH < 6.5) and phosphate buffer (PB, pH 7.5–8.0), measured by means of spectrophotometry and atomic absorption spectroscopy. Co-released leather-specific species were shown to reduce Cr(VI), both in ASW and in PB. Their reduction capacities correlated with findings of the surface content of Cr and of released Cr. Leather samples without this capacity, and with less aromatic surface groups visible by ATR-FTIR, revealed Cr(VI) both at the surface and in solution (PB)

  19. 司马谈临终遗命与司马迁人生转向%The Testament of Sima Tan and the Turning of Sima Qian' s Life

    Institute of Scientific and Technical Information of China (English)

    袁传璋

    2016-01-01

    司马氏家族的传统实为多元,司马迁并非出身于纯粹的"史官世家". 他处于武帝"有为"之世,青少年时期志在立功荣祖. 仕为郎中后以"辩智闳达"得到武帝器重,奉使西征南略,仕途不可限量.司马谈临终遗命改变了司马迁的人生取向,继任太史,由立功转为立言. 先父遗命成为司马迁的纂著指南和精神动力,指导、鞭策、支持他发愤著书,完成"究天人之际,通古今之变"的第二部《春秋》——《太史公书》.%The family of Sima was of multiple family traditions, which was not purely one of official historians. Sima Qian was living in the period when Emperor Wu was full of promise, and he made up his mind to render meritorious service and glorify his an?cestors. After he was appointed as a Langzhong, he won the appreciation of the emperor with his witty eloquence, and was ordered to go on an expedition in the west to conquer Nanlve, his official future being infinitely bright. The testament of Sima Tan changed the direction of Sima Qian' s life, and he carried on his father' s duty as an official historian, turning from rendering meritorious deeds to establishing his theory in words. His late father' s last orders became the guidance and spiritual power of his writings, until he fi?nally completed the second Spring and Autumn—The Book of the Greatest Official Historian.

  20. Two families with quadrupedalism, mental retardation, no speech, and infantile hypotonia (Uner Tan Syndrome Type-II; a novel theory for the evolutionary emergence of human bipedalism

    Directory of Open Access Journals (Sweden)

    Uner eTan

    2014-04-01

    Full Text Available Two consanguineous families with Uner Tan Syndrome (UTS were analyzed in relation to self-organizing processes in complex systems, and the evolutionary emergence of human bipedalism. The cases had the key symptoms of previously reported cases of UTS, such as quadrupedalism, mental retardation, and dysarthric or no speech, but the new cases also exhibited infantile hypotonia and are designated UTS Type-II. There were 10 siblings in Branch I and 12 siblings in Branch II. Of these, there were seven cases exhibiting habitual quadrupedal locomotion (QL: four deceased and three living. The infantile hypotonia in the surviving cases gradually disappeared over a period of years, so that they could sit by about 10 years, crawl on hands and knees by about 12 years. They began walking on all fours around 14 years, habitually using QL. Neurological examinations showed normal tonus in their arms and legs, no Babinski sign, brisk tendon reflexes especially in the legs, and mild tremor. The patients could not walk in a straight line, but (except in one case could stand up and maintain upright posture with truncal ataxia. Cerebello-vermial hypoplasia and mild gyral simplification were noted in their MRIs. The results of the genetic analysis were inconclusive: no genetic code could be identified as the triggering factor for the syndrome in these families. Instead, the extremely low socio-economic status of the patients was thought to play a role in the emergence of UTS, possibly by epigenetically changing the brain structure and function, with a consequent selection of ancestral neural networks for QL during locomotor development. It was suggested that UTS may be regarded as one of the unpredictable outcomes of self-organization within a complex system. It was also noted that the prominent feature of this syndrome, the diagonal-sequence habitual QL, generated an interference between ipsilateral hands and feet, as in non-human primates. It was suggested that this

  1. Sub-Acute Toxicity Study of Tiger Milk Mushroom Lignosus tigris Chon S. Tan Cultivar E Sclerotium in Sprague Dawley Rats.

    Science.gov (United States)

    Kong, Boon-Hong; Tan, Nget-Hong; Fung, Shin-Yee; Pailoor, Jayalakshmi

    2016-01-01

    Lignosus also known as "Tiger Milk Mushroom," is classified in the family Polyporaceae and mainly consumed for its medicinal properties in Southeast Asia and China. The sclerotium is known as the part with medicinal value and often used by the natives to treat a variety of ailments. Lignosus tigris Chon S. Tan, one of the species of the Malaysia Tiger Milk mushroom, has recently been successfully cultivated in laboratory. Earlier studies have demonstrated the L. tigris cultivar E sclerotia exhibited beneficial biomedicinal properties. This study evaluated the potential toxicity of L. tigris E sclerotia in a 28-day sub-acute oral administration in Sprague Dawley (SD) rats. L. tigris E sclerotial powder was administered orally at three different doses of 250, 500, and 1000 mg/kg to the SD rats once daily, consecutively for 28-days. Body weight of the rats was recorded and general behavior, adverse effects, and mortality were observed daily throughout the experimental period. At the end of the experiment, blood hematology and biochemistry, relative organ weights, and histopathological analysis were performed. Results showed that there were no mortality nor signs of toxicity throughout the 28-day sub-acute toxicity study. Oral administration of the L. tigris E sclerotial powder at daily dose up to 1000 mg/kg had no significant effects in body weight, relative organ weight, blood hematological and biochemistry, gross pathology, and histopathology of the organs. L. tigris E sclerotial powder did not cause any treatment-related adverse effect in the rats at different treatment dosages up to 1000 mg/kg. As the lethal dose for the rats is above 1000 mg/kg, the no-observed-adverse-effect level (NOAEL) dose is more than 1000 mg/kg.

  2. Sub-acute Toxicity Study of Tiger Milk Mushroom Lignosus tigris Chon S. Tan Cultivar E Sclerotium in Sprague Dawley Rats

    Directory of Open Access Journals (Sweden)

    Shin Yee Fung

    2016-08-01

    Full Text Available Lignosus also known as Tiger Milk Mushroom, is classified in the family Polyporaceae and mainly consumed for its medicinal properties in Southeast Asia and China. The sclerotium is known as the part with medicinal value and often used by the natives to treat a variety of ailments. Lignosus tigris Chon S. Tan, one of the species of the Malaysia Tiger Milk mushroom, has recently been successfully cultivated in laboratory. Earlier studies have demonstrated the L. tigris cultivar E sclerotia exhibited beneficial biomedicinal properties. This study evaluated the potential toxicity of L. tigris E sclerotia in a 28-day sub-acute oral administration in Sprague Dawley (SD rats. L. tigris E sclerotial powder was administered orally at three different doses of 250, 500 and 1000 mg/kg to the SD rats once daily, consecutively for 28 days. Body weight of the rats was recorded and general behavior, adverse effects and mortality were observed daily throughout the experimental period. At the end of the experiment, blood hematology and biochemistry, relative organ weights and histopathological analysis were performed. Results showed that there were no mortality nor signs of toxicity throughout the 28-day sub-acute toxicity study. Oral administration of the L. tigris E sclerotial powder at daily dose up to 1000 mg/kg had no significant effects in body weight, relative organ weight, blood hematological and biochemistry, gross pathology and histopathology of the organs. L. tigris E sclerotial powder did not cause any treatment-related adverse effect in the rats at different treatment dosages up to 1000 mg/kg. As the lethal dose for the rats is above 1000 mg/kg, the no-observed-adverse-effect level (NOAEL dose is more than 1000 mg/kg.

  3. Early embryo achievement through isolated microspore culture in Citrus clementina Hort. ex Tan., cvs. ‘Monreal Rosso’ and ‘Nules’

    Directory of Open Access Journals (Sweden)

    Benedetta eChiancone

    2015-06-01

    Full Text Available Microspore embryogenesis is a method of achieving complete homozygosity from plants. It is particularly useful for woody species, like Citrus, characterized by long juvenility, a high degree of heterozygosity and often self-incompatibility. Anther culture is currently the method of choice for microspore embryogenesis in many crops. However, isolated microspore culture is a better way to investigate the processes at the cellular, physiological, biochemical and molecular levels as it avoids the influence of somatic anther tissue. To exploit the potential of this technique, it is important to separate the key factors affecting the process and, among them, culture medium composition and particularly the plant growth regulators and their concentration, as they can greatly enhance regeneration efficiency. To our knowledge, the ability of meta-Topolin, a naturally occurring aromatic cytokinin, to induce gametic embryogenesis in isolated microspores of Citrus has never been investigated. In this study, the effect of two concentrations of meta-Topolin instead of benzyladenine or zeatin in the culture medium was investigated in isolated microspore culture of two genotypes of Citrus. After eleven months of isolated microspore culture, for both genotypes and for all the four tested media, the microspore reprogramming and their sporophytic development was observed by the presence of multinucleated calli and microspore-derived embryos at different stages. Microsatellite analysis of parental and embryo samples was performed to determine the embryo alleles constitution of early embryos produced in all tested media, confirming their origin from microspores.To our knowledge, this is the first successful report of Citrus microspore embryogenesis with isolated microspore culture in Citrus, and in particular in Citrus clementina Hort. ex Tan, cvs. ‘Monreal Rosso’ and ‘Nules’.

  4. Maailma välisinvesteeringud / Lembo Tanning, Toivo Tanning

    Index Scriptorium Estoniae

    Tanning, Lembo

    2006-01-01

    Ilmunud ka: Buhgalterskije Novosti 2007, nr. 1 lk. 35-39. Ülevaade rahvusvahelise kapitali liikumisest. Tabelid: Välisotseinvesteeringute voolud, mld USD, 2003-2005; Välisotseinvesteeringute positsioon, mld USD, 2003-2005. Graafik: Otsevälisinvesteeringute sissevool maailmas ja regioonides, mld USD, 1980-2005

  5. Euroopa - 27 ja EUR - 13 / Lembo Tanning, Toivo Tanning

    Index Scriptorium Estoniae

    Tanning, Lembo

    2007-01-01

    Ilmunud ka: Buhgalterskije Novosti, nr. 2, 2007, lk. 35-38. 2007. aastal Euroopa Liiduga liitunud Bulgaaria ja Rumeenia ning eurotsooniga liitunud Sloveenia võrdlev analüüs Eurostati andmete põhjal. Kaart, tabelid, diagramm

  6. Raíces griegas: tan lejanas y tan cercanas

    Directory of Open Access Journals (Sweden)

    Ana María Gispert-Sauch Colls

    2011-05-01

    Full Text Available Isidoro de Sevilla en su obra maestra Etimologías, supo unir el “origen”, o sea, de dónde viene un vocablo y la “etimología”, que sería el “por qué” se aplica este vocablo a una realidad concreta. Hizo, pues, una distinción entre etimologías ex causa (según lo que es y etimologías ex origine (según de dónde viene. Y, como de lo que se trataba era decaptar el valor esencial de una palabra, dice Isidoro, “cuando se ha visto de dónde viene un nombre, se comprende más rápidamente su valor, porque el estudio de las realidades es más fácil una vez conocida la etimología” (Etimologías, I, 19, 2. Siguiendo en parte esta orientación, presentamos algunas raíces de verbos griegos, lejanos en referencia al tiempo de su origen, pero presentes en nuestro tiempo a través de sus derivaciones. Y, sobre todo persistentes, porque nos transmiten la esencia de significado, ladensidad semántica, a la que he aludido en varias ocasiones1.De esta forma, el hoy de muchas de nuestras palabras está impregnado de este pasado clásico que nos invita a recuperar permanentemente su esencia. No en vano y refiriéndonos a Sócrates, podríamos decir que la etimología tiene una función “mayéutica”, la de sacar a la luz el núcleofecundo de las palabras. Veamos algunas de dichas raíces.

  7. Time-averaged discharge rate of subaerial lava at Kīlauea Volcano, Hawai‘i, measured from TanDEM-X interferometry: Implications for magma supply and storage during 2011-2013

    Science.gov (United States)

    Poland, Michael P.

    2014-01-01

    Differencing digital elevation models (DEMs) derived from TerraSAR add-on for Digital Elevation Measurements (TanDEM-X) synthetic aperture radar imagery provides a measurement of elevation change over time. On the East Rift Zone (EZR) of Kīlauea Volcano, Hawai‘i, the effusion of lava causes changes in topography. When these elevation changes are summed over the area of an active lava flow, it is possible to quantify the volume of lava emplaced at the surface during the time spanned by the TanDEM-X data—a parameter that can be difficult to measure across the entirety of an ~100 km2 lava flow field using ground-based techniques or optical remote sensing data. Based on the differences between multiple TanDEM-X-derived DEMs collected days to weeks apart, the mean dense-rock equivalent time-averaged discharge rate of lava at Kīlauea between mid-2011 and mid-2013 was approximately 2 m3/s, which is about half the long-term average rate over the course of Kīlauea's 1983–present ERZ eruption. This result implies that there was an increase in the proportion of lava stored versus erupted, a decrease in the rate of magma supply to the volcano, or some combination of both during this time period. In addition to constraining the time-averaged discharge rate of lava and the rates of magma supply and storage, topographic change maps derived from space-based TanDEM-X data provide insights into the four-dimensional evolution of Kīlauea's ERZ lava flow field. TanDEM-X data are a valuable complement to other space-, air-, and ground-based observations of eruptive activity at Kīlauea and offer great promise at locations around the world for aiding with monitoring not just volcanic eruptions but any hazardous activity that results in surface change, including landslides, floods, earthquakes, and other natural and anthropogenic processes.

  8. Volatile compounds of iongissimus dorsi muscle from Ning - xia Tan lamb%宁夏滩羊背最长肌挥发性物质的组成分析

    Institute of Scientific and Technical Information of China (English)

    赵万余; 李爱华; 何立荣

    2012-01-01

    [目的]探究宁夏滩羊肉背最长肌挥发性风味物质组成,为滩羊肉生产加工提供理论参考。[方法]采用固相微萃取(SPME)技术并结合GC—MS分析,对宁夏滩羊肉背最长肌挥发性化合物进行了分析和定量。[结果]共检测到65种化合物,以烃类和醛类化合物为主体,其相对含量分别占34.887%和34.682%。[结论]醛类化合物可能是滩羊背最长肌风味物质的主体成分,对宁夏滩羊贡献风味的挥发性物质可能为壬醛、癸醛、肉豆蔻醛、2-十-烯醛、反式-2-癸烯醛、丙位十二内酯、邻苯二甲酸二甲酯、月桂醇、法呢醇等9种挥发性风味物质。%[ Objective] Aim to provide a theoretical reference for Tan lamb production and processing, the volatile flavor components in longissimus dorsi muscle of Ning -xia Tan lam was explored. [ Methods] Solid phase microextraction (SPME) technology combined with GC -MS analysis was used to identify and quantify volatile flavor composition in longissimus dorsi muscle of Ning - xia Tan lamb. [ re- suits ] 65 compounds were detected, with hydrocarbon and aldehyde compounds as the main part, and the relative content is 34. 887% and 34.682%. [ Conclusion] Aldehyde compounds may be the main compo- nent in volatile flavor components in longissimus dorsi muscle of Ningxia Tan lamb, and nonanal, decanal, myristaldehyde, trans - 2 - Undecen - 1 - al, trans - 2 - decene aldehyde, dihydro - 5 - octyl - 2 ( 3 H) - Furanone, Dimethyl - phthalate, 1 - alcohol,3,7,11 - trimethy, 1 - 2,6,10 - Dodecatrien - 1 - ol, these 9 kinds of volatile flavor compounds may contribute volatile flavor substances for Ning - xia Tan.

  9. Preparation of Tanning Collagen Fiber Spun-lace Nonwovens Material with Immobilized Tannins%固化单宁鞣革胶原纤维水刺非织造材料的制备

    Institute of Scientific and Technical Information of China (English)

    2015-01-01

    本文将鞣革胶原纤维通过气流成网机成网,然后利用水刺试验机制备鞣革胶原纤维水刺材料,最后在黑荆树单宁水溶液及交联戊二醛水的作用下制得固化单宁鞣革胶原纤维水刺材料。并使用红外光谱和扫描电镜对其结构进行了表征及分析。由实验可知,鞣革胶原纤维热敏感温度为105℃,在后续加工过程中不宜超过此温度;鞣革胶原水刺材料固化单宁后,平方米克重增加约40%,但厚度变化不明显,MD方向、CD方向强力均得到提高,提高率分别为64.6%和23.6%,同时断裂伸长率分别下降55.6%和45.2%。固化单宁鞣革胶原水刺材料是便于使用的重金属吸附材料,其开发和利用为广泛应用鞣革胶原纤维材料提供了新的思路。%In this paper, tanning leather collagen fibers were formed a network by air-laid machine, then tanning collagen fiber spun-lace material was prepared by spun-lace testing machine,finally tanning collagen fiber spun-lace non-woven material with immobilized tannins was prepared in the black wattle tannins and glutaraldehyde solution. And infrared spectrometer and scanning electron microscope were used to analyze its structure and characterization. The experiment showed that tanning collagen fibers heat sensitive temperature was 105℃, which should be more than the temperature in the subsequent process;after tanning collagen spun-lace material immobilized tannins, gram weight per square metre increased about 40%, but the thickness change was not obvious, the MD and CD direction strength increased by 64.6%and 23.6%respectively , at the same time elongation at break decreased by 55.6% and 45.2% respectively; tanning collagen spun-lace material with immobilized tannins is a heavy metal adsorption material that is easy to use. Its development and use provide a new train of thought for widely using tanning collagen fiber material in the future.

  10. Seasonal variabilty of surface velocities and ice discharge of Columbia Glacier, Alaska using high-resolution TanDEM-X satellite time series and NASA IceBridge data

    Science.gov (United States)

    Vijay, Saurabh; Braun, Matthias

    2014-05-01

    Columbia Glacier is a grounded tidewater glacier located on the south coast of Alaska. It has lost half of its volume during 1957-2007, more rapidly after 1980. It is now split into two branches, known as Main/East and West branch due to the dramatic retreat of ~ 23 km and calving of iceberg from its terminus in past few decades. In Alaska, a majority of the mass loss from glaciers is due to rapid ice flow and calving icebergs into tidewater and lacustrine environments. In addition, submarine melting and change in the frontal position can accelerate the ice flow and calving rate. We use time series of high-resolution TanDEM-X stripmap satellite imagery during 2011-2013. The active image of the bistatic TanDEM-X acquisitions, acquired over 11 or 22 day repeat intervals, are utilized to derive surface velocity fields using SAR intensity offset tracking. Due to the short temporal baselines, the precise orbit control and the high-resolution of the data, the accuracies of the velocity products are high. We observe a pronounce seasonal signal in flow velocities close to the glacier front of East/Main branch of Columbia Glacier. Maximum values at the glacier front reach up to 14 m/day were recorded in May 2012 and 12 m/day in June 2013. Minimum velocities at the glacier front are generally observed in September and October with lowest values below 2 m/day in October 2012. Months in between those dates show corresponding increase or deceleration resulting a kind of sinusoidal annual course of the surface velocity at the glacier front. The seasonal signal is consistently decreasing with the distance from the glacier front. At a distance of 17.5 km from the ice front, velocities are reduced to 2 m/day and almost no seasonal variability can be observed. We attribute these temporal and spatial variability to changes in the basal hydrology and lubrification of the glacier bed. Closure of the basal drainage system in early winter leads to maximum speeds while during a fully

  11. Põhjamaade maksebilansi jooksevkonto / Lembo Tanning

    Index Scriptorium Estoniae

    Tanning, Lembo

    1999-01-01

    Teenuste, tulude ja ülekannete järjest suurenev deebet, mis on iseloomulik kõigile Põhjamaade riikidele, näitab rahva heaolu jätkuvat kasvu, vaeste arengumaade abistamist, osavõttu rahvusvahelistest programmidest. Põhjamaade riikide maksebilansid IMF-i materjalide põhjal. Jooksevkontod

  12. Euroopa Liidu palkadest / Lembo Tanning

    Index Scriptorium Estoniae

    Tanning, Lembo

    2001-01-01

    Euroopa Liidu elustandardi analüüs palkade põhjal. Tabelid: EL-i maade keskmine tunnipalk majandusharude järgi eurodes; EL-i madalapalgaliste üldine tase ja nende liigitus põhjuste järgi %-des; EL-i madalapalgaliste osakaalu jagunemine ja selle tõenäosus; Saksamaa Liitvabariigi palgad 1996-2000

  13. Euroopa panganduse arengusuunad / Lembo Tanning

    Index Scriptorium Estoniae

    Tanning, Lembo

    2000-01-01

    Euroopa Liidu liikmesriikides on pankade arv ajavahemikus 1994-1997 10% võrra vähenenud, kuid samaaegselt on krediidiinstitutsioonide kohalike allüksuste arv 8% võrra kasvanud ja teenistujate arv suhteliselt muutumatuks jäänud. Tabel: Ülevaade Euroopa Majandusruumi finantsinstitutsioonide arvust, filiaalidest ja töötajatest

  14. Preference Differentiation of ChangZhuTan Urban Rresidents Forest Health Tourism Based on Lifestyle: A Case of ChangZhuTan City%基于生活形态的城市居民森林保健旅游偏好分异研究 ——以长株潭地区为例

    Institute of Scientific and Technical Information of China (English)

    郑群明; 唐绒; 陈青山

    2015-01-01

    森林保健旅游已经成为健康旅游的一大热点.在森林保健旅游的研究中,旅游偏好研究的成果较少.通过引入生活形态的概念,对长株潭地区的城市居民加以细分,来研究生活形态迥异的城市居民在森林保健旅游领域的旅游偏好.研究发现,长株潭地区的城市居民可细分为保守稳重型、消极随意型和积极进取型三个不同生活形态的族群;进一步研究发现,不同生活形态的族群在人口学特征、森林保健旅游项目、信息渠道、出行时段、出游方式、入住方式以及消费意向等森林保健旅游偏好方面存在差异.基于研究结论从产品开发和市场营销角度提出相关建议.%Forest health tourism has become a hot spot for health tourism.In the study of forest health tourism,pref-erence research has few outcome.This paper introduces the concept of lifestyle,to distinguish urban residents in Chang-ZhuTan areas and study the travel preferences about different forms of urban residents.It finds that,ChangZhuTan Ur-ban Residents can be ,this paper sdivided into conservative type,passive type and aggressive type.Further research finds differences among the three different lifestyle groups in demographic characteristics and forest health tourism projects,information channels,travel time,travel mode,dormitory-style and consume intention.Finally,some related suggestions for product development and marketing are proposed based on the research findings.

  15. Application performance of three formaldehyde scavenger in aldehyde tanned leather%三种甲醛捕获剂在醛鞣革中的应用效果

    Institute of Scientific and Technical Information of China (English)

    强涛涛; 高鑫; 王学川; 赵瑞; 郑书杰

    2014-01-01

    对甲醛鞣山羊皮服装革中游离甲醛进行捕获研究,详细对比了胶原蛋白甲醛捕获剂、超支化聚合物甲醛捕获剂及前两者按照不同比例复配的甲醛捕获剂去除游离甲醛的能力.通过单因素实验,优化了甲醛捕获剂的应用工艺参数.结果表明:胶原蛋白甲醛捕获剂用量为1%,捕获时间为4 h时,游离甲醛去除率为75.8%;超支化聚合物甲醛捕获剂用量3%,捕获时间4 h时,游离甲醛去除率为94.8%;最佳复配质量比例(胶原蛋白甲醛捕获剂:超支化聚合物甲醛捕获剂)为1∶1,用量为3%,捕获时间4 h时,复配后甲醛捕获剂游离甲醛去除率为91.0%.%To study the captured free formaldehyde in the formaldehyde tanned goatskin gar‐ment leather ,detailed contrast the formaldehyde removal ability of the collagen formaldehyde scavenger ,formaldehyde scavenger of hyperbranched polymer and the formaldehyde scaven‐ger compounded according to the different proportions of the two .The parameters of the ap‐plication process of formaldehyde capture agents were optimized by single factor experi‐ments ,the results showed that the dosage of the collagen formaldehyde capture agent was 1% ,the capture time was 4 h ,formaldehyde removal rate was 75 .8% ;the dosage of hyper‐branched polymer formaldehyde capture agent was 3% ,the capture time was 4 h ,formalde‐hyde removal rate reached 94 .8% ;Best compound proportion of quality (collagen formalde‐hyde capture agent :formaldehyde scavenger of hyperbranched polymer) was 1∶1 ,the dosage was 3% ,the capture time was 4 h ,formaldehyde removal rate reached 91 .0% .

  16. Two families with quadrupedalism, mental retardation, no speech, and infantile hypotonia (Uner Tan Syndrome Type-II); a novel theory for the evolutionary emergence of human bipedalism

    Science.gov (United States)

    Tan, Uner

    2014-01-01

    Two consanguineous families with Uner Tan Syndrome (UTS) were analyzed in relation to self-organizing processes in complex systems, and the evolutionary emergence of human bipedalism. The cases had the key symptoms of previously reported cases of UTS, such as quadrupedalism, mental retardation, and dysarthric or no speech, but the new cases also exhibited infantile hypotonia and are designated UTS Type-II. There were 10 siblings in Branch I and 12 siblings in Branch II. Of these, there were seven cases exhibiting habitual quadrupedal locomotion (QL): four deceased and three living. The infantile hypotonia in the surviving cases gradually disappeared over a period of years, so that they could sit by about 10 years, crawl on hands and knees by about 12 years. They began walking on all fours around 14 years, habitually using QL. Neurological examinations showed normal tonus in their arms and legs, no Babinski sign, brisk tendon reflexes especially in the legs, and mild tremor. The patients could not walk in a straight line, but (except in one case) could stand up and maintain upright posture with truncal ataxia. Cerebello-vermial hypoplasia and mild gyral simplification were noted in their MRIs. The results of the genetic analysis were inconclusive: no genetic code could be identified as the triggering factor for the syndrome in these families. Instead, the extremely low socio-economic status of the patients was thought to play a role in the emergence of UTS, possibly by epigenetically changing the brain structure and function, with a consequent selection of ancestral neural networks for QL during locomotor development. It was suggested that UTS may be regarded as one of the unpredictable outcomes of self-organization within a complex system. It was also noted that the prominent feature of this syndrome, the diagonal-sequence habitual QL, generated an interference between ipsilateral hands and feet, as in non-human primates. It was suggested that this may have been

  17. 栲胶-噁唑烷SCU结合鞣成革中甲醛含量及其去除方法%Formaldehyde Content and it's Removal in Leather Tanned by Vegetable Tannin-oxazolidine SCU Combination Tannage

    Institute of Scientific and Technical Information of China (English)

    孙青永; 李靖; 廖学品; 石碧

    2011-01-01

    Tanned by tannin -oxazolidine SCU combination tannage, the leather has a high hydrothermal stability. But a significant contend of formaldehyde is determined in the leather. The effects of combination tanning conditions on shrinkage temperature and formaldehyde content in leather were investigated. It was found that the formaldehyde content increased with the increasing oxazolidine SCU dosage, while the other factors, such as pH and temperature of tanning, amost have no effects. The most of the formaldehyde in leather caused by the tannage can be removed by formaldehyde scavenger DTA988, and the formaldehyde content in leather was lower than 70 mg/kg when 4 % DT - A988 was used.%噁唑烷鞣剂SCU与栲胶结合鞣成革具有高湿热稳定性,但成革中存在一定含最的游离甲醛.本文研究了结合鞣工艺对成革收缩温度及甲醛含量的影响,结果表明,工艺条件基本不影响成革中的甲醛含量,甲醛含量只随着嗯唑烷SCU用量的增加而增加.该结合鞣法在皮革中产生的游离甲醛,可以用甲醛清除剂DT-A988进行较有效的清除,当DT-A988用量为4%时,成革中的甲醛含量低于70 mg/kg.

  18. 非线型共聚物高吸收铬鞣助剂的制备及应用%Synthesis and Application of Non-linear Copolymer High Exhaustion Chrome-tanning Auxiliary

    Institute of Scientific and Technical Information of China (English)

    张磊; 兰云军

    2012-01-01

    以聚乙二醇-200(PEG - 200)和马来酸酐(MA)为原料,合成多官能度烯类支化单体(PM),与丙烯酸(AA)单体通过自由基共聚法制备系列水溶性非线型共聚物PMAAs.通过FTIR、1HNMR和13CNMR对支化单体和聚合物的结构进行了表征.制备的系列非线型共聚物PMAAs作为高吸收铬鞣助剂进行应用实验,结果表明,该高吸收铬鞣助剂在浸酸工序加入时效果最佳,当质量分数为1.5%时,铬吸收率最高可达96.57%,且皮革粒面细致,鞣后皮革的Ta和物理力学性能明显提高.%Polyether maleic acid monoester ( PM ) was prepared by the esterification of polyethylene glycol ( PEG - 200 ) and maleic anhydride ( MA ). PM was used as an allyl branching monomer to copolymerize with acrylic acid (AA) and the initiator ammonium persulfate to prepare the non-linear copolymer( PMAA) by free radical water-solution polymerization. The structure of PM and PMAA was characterized by means of FTIR/HNMR and I3CNMR. The prepared non-linear copolymers ( PM A A) additives as high exhaustion chrome-tanning auxiliary were applied in the chrome-tanning process. The results indicate that the high exhaustion chrome-tanning auxiliary had the best tanning effect when applied in pickling and when its mass fraction was 1.5%, with the absorptivity of chrome being 96.57% , bring about fine leather surface and significantly increasing the Tt and physical mechanical performance of the leather.

  19. Study on Strategy for Constructing Chang-Zhu-Tan Urban Green Logistics System%构建长株潭城市绿色物流体系策略研究

    Institute of Scientific and Technical Information of China (English)

    王阳军; 周建; 芦娟

    2012-01-01

    分析了绿色物流的内涵,在充分探究长株谭区域物流业需求特征的基础上,结合长株潭地区绿色物流产业需求特征,提出了建设长株潭城市绿色物流体系的策略和建议.%The paper analyzes the intension of green logistics and, in connection with the demand characteristics of the green logistics industry of the Chang-Zhu-Tan region, proposes the strategy and suggestions for construction the green logistics system of the region.

  20. No nos gustó: el transeúnte

    Directory of Open Access Journals (Sweden)

    Daniel Samper Pizano

    1965-11-01

    Full Text Available Entendemos nosotros la crítica de arte -especialmente la crítica literaria- como un intento de interpretación o valoración objetiva de una serie de elementos subjetivos. Porque aunque en ocasiones se preste para una confrontación de cuestiones objetivas -sería el caso de los análisis gramaticales en una obra- la crítica será siempre un encuentro entre algo subjetivo, como es la obra literaria, con una pretendida visión objetiva -como es su análisis- de otro elemento subjetivo -como es el concepto del crítico-.

  1. Otimização de protocolos para regeneração de plantas in vitro de tangerina 'Cleópatra' (Citrus reshni Hort. ex Tan. Optimization of protocols for in vitro regeneration of 'Cleopatra'(Citrus reshni Hort. ex Tan. mandarin plants

    Directory of Open Access Journals (Sweden)

    Rosely Pereira da Silva

    2005-12-01

    Full Text Available O sucesso de técnicas biotecnológicas no melhoramento in vitro de citros está condicionado à existência prévia de uma metodologia eficiente de regeneração de plantas. O objetivo deste trabalho foi estabelecer um sistema para regeneração de plantas in vitro, via organogênese de tangerina Cleópatra (Citrus reshni Hort. Ex Tan.. Experimentos avaliando concentrações de BAP (benzilaminopurina e condições de cultivo, posição e polaridade do segmento de epicótilo, no meio de cultura, foram desenvolvidos para maximizar a regeneração. Para a indução das brotações, segmentos de epicótilo (1,0 cm de comprimento foram cultivados em meio de cultura MT (Murashige & Tucker, 1969. Após 45 dias, foram avaliados: percentual de explantes responsivos e nº. de gemas/ explante responsivo. Para enraizamento, foram utilizados os meios MT e MT/2, com ou sem ANA (ácido naftalenoacético na concentração 1,0 mg L-1. Após 60 dias, avaliou-se o percentual de brotos que emitiram raízes. A máxima proliferação de gemas foi obtida em condições de escuro, por 30 dias, utilizando-se da concentração 2,0 mg L-1 de BAP. Não houve efeito significativo da posição do explante na resposta organogenética. Os segmentos apicais e mediais mostraram-se mais eficientes que os basais. A concentração de 1,0 mg L-1 de BAP com o cultivo em condições de escuro, por 30 dias, na fase de indução de brotações combinada com ausência de auxina no meio MT/2, na fase de indução de raízes, assegurou melhor índice de enraizamento dos brotos regenerados.The success of biotechnology for in vitro citrus plant breeding programs depends on the availability of efficient methodologies for plant regeneration. The objective of this work was to establish a system for regeneration of in vitro plants, through organogenesis of 'Cleopatra' (Citrus reshni Hort. ex Tan. mandarin plants. Experiments were performed to evaluate the concentration of BAP and culture

  2. Otizm Tanılı Çocuklara Uygulanan “Resimlerle Duyguların Öğretimi Programı”nın Etkililiğinin İncelenmesi

    Directory of Open Access Journals (Sweden)

    Alev Girli

    2011-01-01

    Full Text Available Bu çalışmanın amacı, Asperger sendromu ve yüksek fonksiyonlu otizm (YFO tanısı almış üç çocuğa uygulanan “resimlerle duygu öğretimi programı”nın etkililiğini incelemektir. Araştırmada, tek denekli araştırma modellerinden toplu yoklama evreli davranışlar arası çoklu yoklama modeli kullanılmıştır. Çalışma, ikisi Asperger sendromu, biri yüksek fonksiyonlu otizm tanılı, ilköğretime devam eden, üç erkek öğrenci ile gerçekleştirilmiştir. Araştırma bulguları, uygulanan programın etkili olduğunu göstermiştir. Birinci denek Ali siyah-beyaz fotoğraflardaki yüz ifadelerinden dört temel duygu olan mutlu, üzgün, kızgın, korkmuş duygularını tanımayı, ikinci denek Ahmet şematik çizimlerdeki yüz ifadelerinden aynı dört temel duyguyu tanımayı, üçüncü denek Mehmet, şematik çizimlerdeki karakterin isteklerinin gerçekleşip gerçekleşmemesi ile ilgili mutlu ve üzgün duygularını tanımayı öğrenmiştir. Öğrencilerin, hedef davranışları farklı araç setlerinde genellemiş oldukları ve 15 gün sonra yapılan izleme oturumunda büyük oranda korudukları belirlenmiştir. The objective of this research is to evaluate the effectiveness of an instructional program that teaches emotions through pictures to three children diagnosed with high functional autism and Asperger Syndrome. The research employed one of the single-subject survey methods namely multiple probe model with probe conditions across behaviors. The research was conducted with 3 male students, one of whom was diagnosed with high functional autism and two others with Asperger Syndrome. They are elementary school students attending mainstreaming classes. The research findings showed that the educational program was proved to be effective for all three subjects in teaching target emotions. The first subject Ali learned to recognize four basic emotions namely sad, angry, happy and afraid which were showed to him in

  3. 12 Mart Romanlarında Kadın Tanımlamaları The Caharacterization Of Women In The March Twelfth Novels

    Directory of Open Access Journals (Sweden)

    Ahmet ALVER

    2012-12-01

    ında yaşananları ele alarak, 1980’e kadar olan zaman diliminde, aşırı sağ ve sol görüşlü aktivistlerin birbirleriyle ve devletin güvenlik güçleriyle olan kavgalarını ele alan, 1970’ler Türkiye’sinin bilinmeyen yanlarına edebi bir perspektiften bakıp kültürel hafızasını tutan, bu döneme etkili bir dille ayna tutmaya çalışan eserlere genel bir ifadeyle ‘12 Mart Romanları’ denmektedir. Kaos ve kargaşanın, aşırı şiddetin, devlet tarafından kendi halkına uygulanan baskının had safhada olduğu bir döneme ışık tutması sebebiyle bu romanlar, paha biçilmez değere sahip yazılı kaynaklardır.Bu çalışma özellikle, 12 Mart dönemi kadın yazarlarının kalemlerinden çıkan romanlarda ele aldıkları kadın tiplemelerini konu edinmiştir. Devrimci harekette yeralan kadınlara toplumun genel anlamda bakışını ve bu kadınların devrimci olmanın bedelini nasıl ödediklerini incelemiştir. Çalışmamızda devrimci kadınların yanısıra, maddi refahı ve zenginliği elde etme karşılığında toplumun ataerkil ve baskıcı yapısına boyun eğmeye razı olmuş ve mükemmel tüketiciler olarak tanımlanabilecek burjuva kadınları ile kendilerini sadece üreme malzemesi olarak kabul eden, vücutlarını erkekleri tatmin etmede araç olarak gören cahil kırsal kesim kadınları da incelenmiştir.Bu çalışmada Füruzan’ın 47’liler, Sevgi Soysal’ın Şafak, Adalet Ağaoğlu’nun Bir Düğün Gecesi ile Pınar Kür’ün Yarın Yarın romanları incelenmiştir.

  4. 皮革行业实施清洁生产途径的可持续发展研究%Sustainable Development on the Application of Cleaner Production in Tanning Industry

    Institute of Scientific and Technical Information of China (English)

    周林艳; 曾丽璇; 李晨

    2012-01-01

    皮革行业迅速的发展同时带来了严重的环境污染和资源浪费等问题.在皮革行业发展相对集中的区域,地表水和地下水均受到严重污染.此外,皮革行业还存在大量固体废弃物污染的问题.因此,研究在皮革行业实施清洁生产的途径,对其可持续发展有着非常重要的意义.文章通过简单介绍皮革行业的污染源,指出在制革过程中推行清洁生产审核以及政府引导的必要性,重点提出了在制革工艺、设备、废弃物管理等方面的清洁生产途径,目的是促使清洁生产及其实施途径能得到全面的认识和应用,从而达到节能、减污、增效等生态经济效应.%Leather industry with rapid economic development has brought serious environmental pollution, such as waste of resources and other problems. Surface water and groundwater are severely polluted in the area where the leather industry is relatively concentrated. In addition, there is a large number of solid waste pollution in the leather industry. Therefore, the study in the leather industry to implement cleaner production approach to get sustainable development is of great importance. In this paper, the pollution sources of leather making are briefly introduced. The necessity of the implementation of cleaner production audits and the government guidance to the tanning industry is pointed out. The new ways of tanning technique, equipment, waste management and other aspects are emphasized. Through these new cleaner production technologies, the tanning industry can promote the implementation of cleaner production to a comprehensive understanding and achieve the target of ecological and economic effects including energy saving, pollution reduction, efficiency and other purposes.

  5. 长株潭地区土地利用景观格局动态变化分析%Analysis of dynamic changes of land use and landscape pattern in Chang-Zhu-Tan Cities

    Institute of Scientific and Technical Information of China (English)

    郑瑜; 吴立潮; 罗以灿; 李燕; 吴云景

    2011-01-01

    With the help of ARCGIS and the spatial pattern analysis software FRAGSTATS of the raster version 3.3, the current landscape pattern and its problem of the Chang-ghu-Tan Cities were analyzed based on the landscape indices by using the land cover classification data in 1986, 1995 and 2002. Results showed that the landscape conversion types concentrated mainly in the paddy field, grassland, woodland, urban land, rural residential land and unused land from 1986 to 2002; the dramatic conversion of urban land and rural residential land in recent years,showed an accelerating pace of urbanization, and a rapidly expanding of construction land and rural residential land in Chang-Zhu-Tan Cities, to some extent; it also showed a rapid economic development. At the same time, the government should pay attention to enhancing the stability of landscape pattern in Chang-Zhu-Tan Cities, to promoting local economic, social and ecological sustainable development.%在ARCGIS软件和景观指数统计学软件FRAGSTATS 3.3的支持下,以1986年、1995年和2002年三个时期的土地利用覆盖数据为基础数据来源,以景观生态学的原理和方法为基础,利用景观格局指标分析了长株潭地区的景观格局现状和存在的问题.研究结果表明:1986年到2002年间景观格局主要集中在水田、草地、林地、城镇用地、农村居民用地和未利用地等景观类型之间相互转换.从城镇用地、和农村居民用地的显著转化可以看出,近年来,长株潭地区的城镇化速度不断加快,建设用地和农村居民用地面积不断扩张,说明长株潭地区经济发展较快,但同时要注意增强长株潭地区的景观稳定性和抗干扰性能,促进当地经济、社会和生态的可持续发展.

  6. Establishment of Institutional System for Developing Green Logistics Economy in Chang-zhu-tan Region%长株潭发展绿色物流经济的制度体系构建

    Institute of Scientific and Technical Information of China (English)

    李社云; 李向明

    2012-01-01

    长株潭物流经济的发展存在管理体制跟不上时代的步伐,资源利用效率低等问题,因此发展绿色物流经济势在必行.从发展绿色物流经济的市场保障机制人手,指出必须建立有效的机制、法律法规制度以及形成一种理念,以推动长株潭绿色物流经济的发展.%In this paper, we established an effecitive institution and legal and regulatory system for the development of the green logistics economy in the Chang—zhu—tan region and on such basis cultivated the principles to promote the development of the green logistics economy in the region.

  7. Taze alabalık filetolarının gümüş antimikrobiyal yenilebilir film kaplanarak bozulmaya neden olan bakterilerin tanımlanması

    Directory of Open Access Journals (Sweden)

    Berna Kılınç

    2015-12-01

    Full Text Available Çalışmada taze alabalık filetoları kolloidal gümüş içerikli antimikrobiyal film ile kaplanarak depolama esnasında bozulmaya neden olan bakteriler tanımlanmıştır. Antimikrobiyal yenilebilir film üretiminde; biyopolimer malzemesi ksantan gam, plastikleştirici olarak gliserol, antimikrobiyal madde olarak ise gümüş kullanılmıştır. Alabalık filetoları (kontrol grup ve gümüş içerikli yenilebilir filmle kaplanmış grup olarak çalışılmıştır; kolloidal gümüş içeriği 0.5 gr / 100 ml film çözeltisi [% 0,5 (w / v] olacak şekilde ilave edilmiş, 15 dakika boyunca karıştırılarak antimikrobiyal içerikli ksantan gam yenilebilir film elde edilmiştir. Filetoları daldırma öncesinde solüsyonu 15 dakika oda sıcaklığında bekletilerek soğutmaya bırakılmıştır. Alabalık filetoları kaplama işlemi sırasında 30 saniye balığın bir yüzeyi 30 saniye diğer bir yüzeyini bekletmek koşuluyla toplamda 1 dakika boyunca hidrokolloit kaplama çözeltisi içine daldırılmıştır. Yenilebilir film kaplama ardından filetolar 1 dk bekletilerek filmin kuruması ve süzdürülmesi sağlanmıştır. Yenilebilir film kaplanmış alabalık filetoları strofar tabaklara konularak streç filmle kaplanarak paketlenmiştir. Yenilebilir film uygulanmış alabalık filetolarındaki değişimler mikrobiyolojik (mezofilik aerobik bakteri sayısı, psikrotrof bakteri sayısı, Enterobactericeae sayısı, Staphylococcus spp. sayısı, küf-maya sayısı, laktik asit bakteri sayısı, duyusal (çiğ ve pişmiş alabalık filetoları kabuledilebilirlik testleri, pH analizleri ve bakteri tanımlamaları yapılmıştır. API test kitleriyle yapılan mikroorganizma tanımlama sonuçlarına göre alabalık filetolarında depolama esnasında bozulmaya neden olan baskın bakteriler % 99,9 Pseudomonas fluorescens, %76 Alcaligenes spp., %76 Moraxella spp., %99,9 Lactobacillus salivarius, %99,6 Lactobacillus brevis ve %81

  8. Cenozoic Dextral Strike-Slip Displacement of the Middle Tan-Lu Fault Zone%郯庐断裂中段新生代右行走滑位移

    Institute of Scientific and Technical Information of China (English)

    黄超; 余朝华; 张桂林; 傅良同; 袁志云; 范兴燕

    2013-01-01

    According to the numerical relationship between subsidence (or uplifting) rate and boundary fault strike-slip rate in pull-apart basin,the Cenozoic dextral strike-slip displacement of the middle portion of the Tan-Lu fault zone is indirectly calculated by restoring subsidence history of the Weibei sag which is bounded by the two branch faults of the Tan-Lu fault zone.The subsidence history restoration of four wells located at different structural units shows the sag experienced Early to Middle Paleogene fast subsidence,Late Paleogene uplifting and Neogene to present thermal subsidence,and their averaged subsidence rate are 0.142 9 km/Ma,-0.072 8 km/Ma and 0.032 5 km/Ma respectively.Based on the analysis of the direction and velocity variation of the Pacific-Eurasia subduction,it is inferred the southwestward component of the westward compression stress between Pacific and Eurasia plate might be the main trigger for the dextral strike-slip movement of the Tan-Lu fault zone when the subduction direction changed from northwest to west at Middle Eocene (39.5 Ma).Given the strike-slip movement started at Middle Eocene and sustained to the present time,jointly considered with the subsidence and uplifting rate of the Weibei sag,the Cenozoic dextral strike-slip displacement of the middle Tan-Lu fault zone is calculated to be about 15 km.%依据走滑拉分盆地中盆地沉降(或抬升)速率与边界断层走滑速率之间的数值关系,通过对夹在郯庐断裂中段两分支断层间的潍北凹陷沉积埋藏史的恢复,间接求取郯庐断裂中段新生代右行走滑位移.潍北凹陷内不同构造位置4口井的埋藏史恢复结果表明:凹陷新生代经历了古近纪早、中期的快速沉降,古近纪末—新近纪初的抬升剥蚀和中新世以来的缓慢沉降3个阶段;各阶段的平均沉降速率分别为0.142 9、-0.072 8、0.032 5 km/Ma.通过对太平洋板块与欧亚板块间俯冲速率和方向变化

  9. Encefalopatía neonatal. algo mas que asfixia al nacer

    OpenAIRE

    Cifuentes C., Yolanda; Bermúdez, Martha; Arteaga, Clara

    2011-01-01

    La hiperglicinemia no cetósica (HGNC) es un error innatodel metabolismo, de carácter recesivo, debido a un defectoen el sistema de clivaje, que ocasiona acumulaciónde glicina en la sangre y en el sistema nervioso central,donde activa dos receptores diferentes. El receptor localizadoen la médula espinal, inhibitorio, provoca la apneay el hipo de estos pacientes. El receptor cortical,excitatorio, produce la lesión cerebral y las convulsiones.Se presenta la historia de un recién nacido masculino...

  10. Deporte entre rejas. ¿Algo más que control social?

    Directory of Open Access Journals (Sweden)

    Martos García, Daniel

    2009-08-01

    Full Text Available Sport practices belong to the prison’s landscape. Nevertheless, there is a lack of knowledge about the role they play in prisons ordinary life. Therefore, we developed an ethnographic study, mainly located in the sports hall of a Spanish prison, to understand exercise and sport meanings among inmates, workers, educators and monitors. Data indicate that social rehabilitation through sport is an illusion, although it is the official goal of imprisonment. Even so, participants assign different benefits to exercise and sport, especially inmates. Educative potential of self-control through sport and, mainly, distraction and compensation strategy to cope with boredom, time and confinement’s physical and mental problems are among them. Paper concludes that exercise and sport can play a symbolic ‘evasion’ and personal liberation, but are constrained by a context in which control and order are at the forefront of everything.

    Las actividades deportivas forman parte del paisaje de las prisiones. Sin embargo, escasea el conocimiento sobre el papel que desempeñan en la vida cotidiana de las cárceles. Por ello realizamos un estudio etnográfico, principalmente en el polideportivo de una prisión española, dirigido a comprender los significados que el ejercicio físico y el deporte tenían para los presos, funcionarios, educadores y monitores. Los resultados indican que la reinserción mediante estas prácticas es una ilusión, a pesar de ser la finalidad oficial de la reclusión. Aun así, les asignan diversos beneficios, especialmente los presos y presas. Entre ellos se encuentra el potencial educativo ligado al autocontrol y, sobre todo, el entretenimiento y la compensación para ocupar el tiempo, huir del hastío y sobrellevar los problemas del encierro. El artículo concluye que el ejercicio y el deporte pueden tener un papel de “evasión” simbólica y liberación personal, aunque los presos viven atenazados por un contexto en el que prima el orden y el control por encima de todo.

  11. Algo mas sobre la enfermedad y muerte de José Eustasio Rivera

    Directory of Open Access Journals (Sweden)

    Humberto Roselli Quijano

    2003-03-01

    Full Text Available

    José Eustasio Rivera nació en Neiva el 19 de febrero de 1888. Cursó la primaria en el Colegio de Santa Librada en su ciudad natal y el bachillerato en la Escuela Normal de Bogotá.
    Posteriormente estudió derecho en la Universidad Nacional y se graduó de abogado en 1917. En 1921 publicó "Tierra de Promisión", su admirable libro de sonetos y al año siguiente fue designado Secretario
    de la Comisión de Limites con Venezuela; en 1924 publicó La Vorágine y en 1928 fue nombrado delegado de la Conferencia Internacional de Emigración de la Habana. Se trasladó enseguida a Nueva York en donde transcurrieron los últimos meses de su vida, habiendo fallecido el 1 de diciembre de 1928, a las 12:50, a los 40 años y 9 meses de su edad.

    Rivera, por su profesión de abogado, atendía cuantiosos pleitos en los Llanos de Casanare, por lo cual permanecía largas temporadas en Sogamaso, puerta de entrada a Los Llanos, alojándose en la pensión de doña Adriana Camargo de Albarracín o en la quinta de su amigo Lisandro Durán que quedaba en las estribaciones que cierran el valle hacia el noroeste. Con el señor Durán compartían fraternalmente la afición por la cinegética, a la que ambos rendían culto en los cerros que rodean la laguna de Tota.
    Es sabido que Rivera padeció en varias ocasiones crisis de delirio agudo febril con convulsiones en una de las cuales falleció en Nueva York. Otra le había sobrevenido en 1918 en Orocué; luego se le repitió en Sogamaso en 1920 en que fue atendido por el Dr. Julio Sandoval, distinguido médico de la localidad. La crisis se repitió con características de gravedad en Purificación, Tolima, en marzo de 1921...

  12. Logaritmos, física y algo más

    OpenAIRE

    Vaccaro, Daniel; Szemruch, Verónica

    2002-01-01

    Con la popularización de las calculadoras electrónicas el cálculo logarítmico en sí mismo fue perdiendo espacio y en forma gradual se fue abandonando su enseñanza. Pero el tema “logaritmos” sigue presente en los “programas”. Es muy difícil lograr un aprendizaje sustancial y por lo tanto duradero si en el momento de abordar el tema nuestros alumnos no le encuentran significado. Así que procuramos dárselo. Para ello, aspiramos a un desarrollo conceptual muy distante del puro entrenamiento algeb...

  13. El tejido adiposo: algo más que un reservorio de energía

    Directory of Open Access Journals (Sweden)

    Sanhueza C, Julio

    2009-12-01

    Full Text Available Adipose tissue is a reservoir of energy and also an organ that contributes to the aesthetics and health of human body working as an endocrine tissue. White adipose tissue, which is formed by unilocular adipose cells, can modify organic homeostasis by controlling energy expenditure and consumption and by producing adipokines that regulate food consumption, and carbohydrate and lipid metabolic utilization. Brown adipose tissue is structured by multilocular cells containing many small fat drops that can be easily hydrolyzed. This tissue is involved in adaptative or facultative thermogenesis because it contains the uncoupling-1 protein (UCP-1 which by inhibiting ATP synthesis releases heat. The size of brow adipose tissue is reduced with aging and the most recent future strategies to fight obesity may be by transforming white cells into brown adipose tissue. The present work reviews the main structural and functional characteristics of white and brown adipose tissue with emphasis in its endocrine and regulatory function.El tejido adiposo es un reservorio de grasa y también un órgano que contribuye a la estética y a la salud de las personas, tarea que cumple funcionando como un tejido endocrino. El tejido adiposo blanco, formado por células adiposas uniloculares puede regular la homeostasis orgánica entre el gasto y el consumo de energía. Produce una serie de adipokinas que regulan el consumo de alimentos, la utilización de glucosa y de lípidos por parte del organismo. El tejido adiposo pardo o marrón, estructurado por células multiloculares, contiene numerosas gotas de grasa de pequeño tamaño, las que pueden ser hidrolizadas con mayor facilidad. El tejido participa en la termogénesis adaptativa o facultativa debido a la proteína desacoplante-1 (UCP-1 que inhibe la síntesis de ATP produciendo calor. Con la edad, este tejido se reduce y por ello actualmente se considera que una forma de combatir la obesidad es lograr que el tejido adiposo blanco adquiera característica de pardo. Este trabajo revisa las principales características estructurales y funcionales del tejido adiposo blanco y pardo, con énfasis en sus funciones reguladoras y endocrinas.

  14. Calidad de vida: algo más que un concepto.

    Directory of Open Access Journals (Sweden)

    Hilda Robaina Becerra

    2011-10-01

    Full Text Available El concepto de calidad de vida es controvertido y ambiguo; constituye para muchos profesionales de la salud un tema difícil de analizar ya que maneja escalas cualitativas. Su medición depende de diferentes variables que deben ser referidas por el propio paciente. Los logros de las políticas sociales aplicadas en Cuba dan respuesta con creces a todos y cada uno de los derechos a la calidad de la vida reconocidos en los instrumentos jurídicos de la Organización de las Naciones Unidas. La consulta especializada de planificación de la familia y riesgo reproductivo del Área III de Cienfuegos, constituyó una oportunidad para el desarrollo de la evaluación de la calidad de vida en las mujeres dispensarizadas como riesgo preconcepcional pertenecientes a dicha área de salud. Se realizó un estudio durante un año, se comparó el comportamiento de las diferentes escalas de la calidad de vida en las pacientes estudiadas al ingresar en los servicios especializados de planificación familiar y al año de la intervención, se apreció en la investigación que el índice total de la calidad de vida de las pacientes que conformaron el universo de estudio durante la primera consulta fue inferior al encontrado al año de la intervención en la consulta multidisciplinaria.

  15. Cambio climático y plagas: algo más que el clima

    Directory of Open Access Journals (Sweden)

    J.A. Hódar

    2012-01-01

    Full Text Available Hay un acuerdo general en la comunidad científica respecto al efecto que el cambio climático va a significar para las especies plaga: la mayor parte de ellas se van a ver favorecidas, lo que augura un panorama difícil para la sostenibilidad y gestión de muchos de nuestros bosques. Usando como hilo conductor a la procesionaria del pino (Thaumetopoea pityocampa, una plaga circunmediterránea que afecta severamente a los pinares y cuya respuesta al incremento de temperaturas es bien conocida en Europa, señalamos la necesidad de un abordaje más integral para la futura gestión de estas plagas. Frente a los procedimientos de control basados en el ataque directo a la especie plaga, mostramos las posibilidades de una estrategia de prevención basada en el manejo del hábitat, que consiga bosques más diversos en estructura y composición específica, más resistentes y resilientes no sólo frente a las plagas, sino a los diversos tipos de perturbación que se adivinan para los años venideros.

  16. Vocabulario y comprensión lectora: algo más que causa y efecto

    Directory of Open Access Journals (Sweden)

    María José Godoy Merino

    2010-06-01

    Full Text Available La comprensión lectora es uno de los principales temas de estudioen el ámbito educativo, tanto por la complejidad de los procesos yhabilidades implicados como por la importancia que tiene en la adquisición de contenidos escolares. El déficit en la lectura comprensiva es consecuencia de varios factores entre los que seencuentra la pobreza de vocabulario. Con nuestra investigación tratamos de determinar en qué medida existen dificultades en la comprensión lectora en escolares de educación primaria y si existen limitaciones en el vocabulario de los niños que la presentan.

  17. La Publicidad, algo más que hacer un anuncio

    OpenAIRE

    1997-01-01

    Los niños desde la más tierna infancia están inmersos en un contexto lleno de mensajes publicitarios. Pretendemos trabajar en Educación Infantil fomentando el que los niños y niñas sean críticos ante el bombardeo publicitario que les invade. En todo este trabajo hemos pretendido dar un uso funcional a la lectura y la escritura trabajando por Proyectos de Trabajo. El punto de partida de los Proyectos son las historias y el saber del Grupo. El material que se utiliza en clase, es un mater...

  18. Memoria: el pasado nos debe enseñar algo sobre el presente

    Directory of Open Access Journals (Sweden)

    Emiliano Galende

    2014-01-01

    Full Text Available Este artículo evoca el contexto histórico, profesional e intelectual en el que la Federación a rgentina de Psiquiatras (F a P elaboró la “Carta de m endoza de los Psiquiatras a rgentinos”, en el marco de la ii Conferencia n acional sobre Problemas Gremiales y Profesionales de los Psiquiatras, que tuvo lugar en la ciudad de m endoza, los día 18 y 19 de junio de 1972. s e analiza la posición de la F a P con respecto a las políticas de salud y, en particular, de salud mental; los vínculos con otros actores sociales, como organizaciones de familiares de pacientes, dirigentes populares y sindicales, y profesionales de diferentes disciplinas, en el marco de los gobiernos de facto de aquellos años. A modo de cierre, se reflexiona sobre el silenciamiento que las dictaduras produjeron sobre el pasado reciente y la necesidad de defender y asegurar la memoria colectiva. e l documento reproducido en este artículo fue recuperado del fondo m ario t esta, perteneciente al Centro de d ocumentación e i nvestigación Pensar en s alud (C edo P s del i nstituto de s alud Colectiva de la Universidad n acional de Lanús.

  19. Entrenar y evaluar competencias, ¿algo que ver con el triatlón?

    OpenAIRE

    Marqués Andrés, Mercedes; Pérez Poch, Antoni

    2015-01-01

    Este trabajo recoge nuestra inquietud y nuestras reflexiones sobre cómo debería tener lugar la evaluación de competencias específicas en los planes de estudios emanados del Espacio Europeo de Educación Superior. The objective of this paper is to raise some questions and ideas about competence assessment. Based on our research and teaching practice, we suggest some changes regarding the specific competence assessment, in the European Higher Education Area.

  20. Research on Scholarship Evaluation System based on Decision Tree Algo-rithm

    Institute of Scientific and Technical Information of China (English)

    尹骁; 王明宇

    2015-01-01

    Under the modern education system of China, the annual scholarship evaluation is a vital thing for many of the college students. This paper adopts the classification algorithm of decision tree C4.5 based on the bettering of ID3 algorithm and construct a data set of the scholarship evaluation system through the analysis of the related attributes in scholarship evaluation information. And also having found some factors that plays a significant role in the growing up of the college students through analysis and re⁃search of moral education, intellectural education and culture&PE.

  1. La administración es algo más que gerencia

    Directory of Open Access Journals (Sweden)

    Rodrigo Vélez Bedoya

    2005-06-01

    Full Text Available The objective of this article is to show a new conception of administration that goes beyond the modern notion, which justifies the profession only from a pragmatic point of view. Neglecting not only the philosophical and speculative possibilities, but also the scientific development in an autonomous and original way. The influx of this imaginary, determined for the administration serious epistemological and ethics deficiencies that led to the origin of a new debate that actually is making to rethink the knowledge systems and the pedagogic processes. This polemic has allowed to understand that this disciplinary pragmatism should be redesign through the incorporation of direction and strategic knowledge as the base and support of the discipline.

  2. Lou Andreas-Salomé, algo más que una coleccionista de genios.

    Directory of Open Access Journals (Sweden)

    Reyes Vallejo Orellana

    2003-01-01

    Full Text Available Lou Andreas-Salomé ha pasado de puntillas por la historia del psicoanálisis, resaltándose más que nada su papel de amante de grandes figuras de principios del siglo pasado o sus escritos literarios. No se ha solido dar gran valor a sus aportaciones psicoanalíticas, las cuales si bien no fueron de extraordinario valor, sí merecen un lugar digno en el recuerdo. Por ello, tratamos de recoger en este trabajo, además de un esbozo de su biografía, las ideas psicoanalíticas de mayor prevalencia de esta bella rusa, particularmente las referidas al narcisismo y a la sexualidad femenina.

  3. Impact of Blended Learning Environments Based on Algo-Heuristic Theory on Some Variables

    Directory of Open Access Journals (Sweden)

    Mustafa AYGÜN

    2012-12-01

    Full Text Available In this study, the effects of Algo–Heuristic Theory based blended learning environments on students’ computer skills in their preparation of presentations, levels of attitudes towards computers, and levels of motivation regarding the information technology course were investigated. The research sample was composed of 71 students. A semi–empirical design with a pre-test–post-test, and control group was used. Research data was collected using an Academic Achievement Test, the Computer Attitude Scale for Primary School Students and the Motivation Scale for the Information Technology Course. A one way ANOVA was conducted on all the data collected and the results revealed that the achievements and motivation levels of the students who studied in an Algo–Heuristic Theory based blended learning environment in the information technology course increased significantly.

  4. Pode-se dizer que há algo como um hiperrealismo sonoro no cinema argentino?

    OpenAIRE

    Fernando Morais da Costa

    2011-01-01

    Nos últimos anos, é comum aplicar-se o conceito de hiper-realismo para descrever a relação entre sons e imagens no cinema comercial. No cinema brasileiro atual, tem-se observado que, como em demais cinematografias, começam a aparecer exemplos de hiper-realismo sonoro. A pergunta que este trabalho propõe é: pode-se dizer que se passa o mesmo com o cinema argentino contemporâneo? E, se a resposta for...

  5. Pode-se dizer que há algo como um hiperrealismo sonoro no cinema argentino?

    Directory of Open Access Journals (Sweden)

    Fernando Morais da Costa

    2011-07-01

    Full Text Available

    Nos últimos anos, é comum aplicar-se o conceito de hiper-realismo para descrever a relação entre sons e imagens no cinema comercial. No cinema brasileiro atual, tem-se observado que, como em demais cinematografias, começam a aparecer exemplos de hiper-realismo sonoro. A pergunta que este trabalho propõe é: pode-se dizer que se passa o mesmo com o cinema argentino contemporâneo? E, se a resposta for positiva, a questão se desdobra em: é certo afirmar que o exagero na representação dos sons que caracteriza a proposta hiper-realista surge da influência do cinema comercial norte-americano sobre as produções argentinas e brasileiras ou ela vem do contato com outras propostas estéticas?  

  6. Algo básico sobre los instrumentos de medida: validez, fiabilidad, sensibilidad y especificidad.

    Directory of Open Access Journals (Sweden)

    Castro Bouzas, M

    2005-09-01

    Full Text Available Abstract:In this article basic topics about the main properties of measuring instruments are provided. In accordance with this objective, concepts on validity, accuracy, sensitiveness and specificity are explained and likewise, their relations with concrete examples on them are given. After defining these concepts, namely from a practical point of view, it is remarked the need of using only instruments fulfilling those required properties.Resumen:En este artículo se dan los conceptos básicos sobre las principales propiedades de los instrumentos de medida. Siguiendo ese objetivo se explican los conceptos de validez, fiabilidad, sensibilidad y especificidad y se proporcionan ejemplos concretos sobre los mismos. Tras definir los conceptos, principalmente desde un punto de vista práctico, se resalta la necesidad de usar unicamente instrumenos que cumplan adecuadamente con estos requisitos.

  7. Lou Andreas-Salomé, algo más que una coleccionista de genios

    OpenAIRE

    Reyes Vallejo Orellana; Antonio Sánchez-Barranco Ruiz

    2003-01-01

    Lou Andreas-Salomé ha pasado de puntillas por la historia del psicoanálisis, resaltándose más que nada su papel de amante de grandes figuras de principios del siglo pasado o sus escritos literarios. No se ha solido dar gran valor a sus aportaciones psicoanalíticas, las cuales si bien no fueron de extraordinario valor, sí merecen un lugar digno en el recuerdo. Por ello, tratamos de recoger en este trabajo, además de un esbozo de su biografía, las ideas psicoanalíticas de mayor prevalencia de e...

  8. Michel Maffesoli: a pós-modernidade se orienta para "algo de anarquista"

    Directory of Open Access Journals (Sweden)

    Eduardo Portanova Barros

    2013-12-01

    Full Text Available O sociólogo francês Michel Maffesoli concedeu esta entrevista no dia 10 de dezembro de 2012, em Paris, na sua residência, alguns dias após a morte de seu mestre, o antropólogo Gilbert Durand, autor de, entre outros, As estruturas antropológicas do imaginário. Na obra de Maffesoli, é clara a influência de seu amigo o mestre Gilbert Durand. Em uma das passagens de Homo eroticus – Des communions émotionnelles (CNRS Editions, 2012, Maffesoli relaciona C.G. Jung a Durand, lembrando que as histerias coletivas se encontram nas raízes daquilo ambos chamavam “psique objetiva”, ou seja, um conjunto estrutural psíquico de longa tradição, o “inconsciente coletivo” junguiano. O próprio Maffesoli reconhece dever a Durand a idéia de que a essência do gênero humano residiria no equilíbrio conflitual. Nesta entrevista, ele fala de imaginário, pós-modernidade e cultura e anarquismo.

  9. SILLA ESTÚPIDA, MESA COJA Y ALGO ROTO: OBJETOS PARA UNA COMEDIA

    Directory of Open Access Journals (Sweden)

    Oscar Hernando Nossa García

    2011-04-01

    Full Text Available Un hombre que llega a las artes plásticas después de fracasar escribiendo guiones para películas comerciales. Su primera propuesta se presenta en el Musée d’Art Moderne, Département des Aigles. Recibe malos comentarios por parte de la crítica, que se decepciona al descubrir que la propuesta “Objeto para una tragedia”: una copa llena de “cianuro”, no atenta contra los espectadores. Una simple copa llena de agua con azúcar adquiere propiedades maléficas al ser contextualizada por un texto, y adquiere veracidad al encontrarse expuesta en el interior de un museo.

  10. Algo sobre la autoestima. Qué es y cómo se expresa

    Directory of Open Access Journals (Sweden)

    María Teresa GONZÁLEZ MARTÍNEZ

    2009-11-01

    Full Text Available RESUMEN: La autoestima es uno de los conceptos psicológicos más complejos y uno de los más difíciles de precisar, a pesar de ser un factor que siempre ha estado presente en cualquier intento de explicación del comportamiento humano normal y patológico. Describir adecuadamente qué es la autoestima, requiere abordar previamente algunos aspectos que han influido en la falta de precisión de este concepto. En este sentido es necesario puntualizar que autoconcepto y autoestima no son términos intercambiables aunque ambos se impliquen, que la autoestima no es un factor unitario sino multidimensional, que la autoestima no sólo incluye los aspectos positivos y más valorables del sujeto, sino también aspectos menos valorables o las limitaciones y por último, que la autoestima no es autoafirmación incondicional ante los demás, sino autoafirmación respetando la individualidad de los otros. Se puede definir la autoestima como «la valoración positiva o negativa que el sujeto hace de su autoconcepto, valoración que se acompaña de sentimientos de valía personal y auto aceptación». La autoestima, así entendida, influye y se expresa a través del comportamiento del sujeto en todas sus dimensiones y manifestaciones, tales como autoaceptación, afrontamiento, aceptación de los demás e interacciones sociales, entre otras.ABSTRACT: Self-esteem is one of the most complex psychological concepts an one of the most difficult ones to define, despite the fact that it is a factor that has always been present in any attempt to explain the normal and pathological human behavior. In order to describe adequately what self-esteem is we need to first look at some of the aspects that have contributed to the lack of precision of this concept. We need to make clear that self-concept and self-esteem are not interchangeable terms even though they are both in some way related, that self-esteem not a unitary factor but multidimensional, that self-esteem not only includes the most positive and valued aspects and limitations of the individual but it also includes less valued aspects and limitations of the individual and that, finally, self-esteem is not an unconditional self-assertiveness in de eyes of others but self-assertiveness respecting the individuality of others. You can define sel-esteem like the «positive or negative valuation that the individual makes of this self-concept. Such valuation goes together with feelings of self-acceptance and value». Self-esteem understood as described above influences and is expresed through the behavior of the individual in all her dimensions and manifestations such as self-acceptance, acceptance of others and interactions with others.

  11. 论《谭政报告》与当代革命军人核心价值观%On Tan Zheng Report and Core Values of Contemporary Revolutionary Soldiers

    Institute of Scientific and Technical Information of China (English)

    李晓衡; 邓运香

    2015-01-01

    The core values of contemporary revolutionary soldiers are the inheritance of main spirits of the Tan Zheng Report, which puts emphasis on the Party’s absolute leadership over the army, on the importance of ideological and political education in the military and on people’s interests above everything else, which are also innovations to the Tan Zheng Report, vigorously carrying forward the spirit of patriotism, repaying the country with supreme loyalty, improving the ability to perform their duties and the devotion to mission, fostering lofty spiritual pursuits and advocating honors. To cultivate and fulfill the core values of contemporary revolutionary soldiers, party orders should be obeyed, and party mission should be performed, and seeking truth from facts should be carried out.%当代革命军人核心价值观是对《谭政报告》主要精神的传承,强调党对军队的绝对领导;强调军队思想政治教育的重要性;强调人民利益高于一切。当代革命军人核心价值观是对《谭政报告》的创新,大力弘扬爱国主义精神,精忠报国;提升履行职责能力,献身使命;培育崇高的精神追求,崇尚荣誉。培育践行当代革命军人核心价值观,就要铸牢听党指挥的强军之魂、紧贴军队使命任务、坚持事实求是。

  12. 滩羊肝脏α-TTP基因克隆及原核表达载体的构建%Cloning of Tan Sheep liver alpha TTP gene and its original nuclear expression vector construction

    Institute of Scientific and Technical Information of China (English)

    贾慧娜; 罗海玲; 刘昆; 左兆云; 张玉伟; 王朕朕

    2012-01-01

    The aim of this study was to clone the CDS area of α-TTP of Tan Sheep and constructed its original nuclear expression vector. RNA of theTan Sheep liver was extracted through Trizol method,and it was reverse transcripted to cDNA. The CDS area of α-TTP was got through synthetic method and PCR amplify method,and it was eventually cloned to original nuclear expression vector pET28a, and named pET28a-TTPA. The results showed that, the CDS area of α-TTP was not only amplified and cloned to the original nuclear expression vector pET28a successfully, but alsoshowed a 99.76% sequence homology with the published sheep α-TTP gene. These results established the foundation for α-TTP prokaryotic expression and the preparation of its antibody.%为克隆滩羊肝脏α-生育酚转移蛋白(α-TTP)CDS区基因并构建其原核表达载体,通过Trizol法提取滩羊肝脏组织总RNA,将其反转录为cDNA后利用人工合成和PCR扩增相结合的方法得到α-TTP CDS区基因,并将其克隆至原核表达载体pET28a,命名为pET28a-TTPA。结果表明:扩增了滩羊肝脏α-TTP CDS区基因,同已公布的绵羊α-TTP序列同源性达99.76%,并且将其成功克隆至原核表达载体pET28a。结果为后续α-TTP基因原核表达及其抗体的制备奠定了基础。

  13. 长株潭地区土地利用/覆被变化的时空特征研究%Study on Spatio-temporal Change of Land Use/Cover in Chang-Zhu-Tan Region

    Institute of Scientific and Technical Information of China (English)

    赵双飞

    2012-01-01

    In order to reveal the land use change and spatial variation characteristics, strengthen land space control and promote the sustainable use of land resources in Chang-Zhu-Tan region during the period of rapid development of urbanization, based on the land use/cover status data in 1986, 1995 and 2005, combined with the technology of GIS, the author studied on spatio-temporal change of land use/cover in Chang-Zhu-Tan region. The results showed that: (1) forest and paddy were advantage in Chang-Zhu-Tan region. During 1986-2005, urban construction land and rural residential land continued to increase, while the paddy continued to decline. (2) Various types of the land use were mutual conversion. Most of paddy, arid-land, forest, shrub and waters transformed into the urban construction lands. The new rural residential land was mainly come from paddy. Urban construction land growth appeared in two ways. One grew by attaching the existing urban construction land, the other grew by leaping. (3) The land use change existed obvious regional differences in Chang-Zhu-Tan region. The relative change rate of the land use type of Changsha City, Zhuzhou City and Xiangtan City was larger; while the relative change rate of the land use type of Liling City, Yarding County and Chaling County was smaller. (4) The average speed of the land use change was not fast in Chang-Zhu-Tan region. The changes of urban construction land, rural residential land, water and grass were positive, which grew with the fastest changing was the urban construction land; the changes of the remaining land use type was negative changes, which reduced with the fastest changing was orchard. It was thought that the main reason for spatio-temporal change of land use/cover was integration development, urbanization level improvement and differences in Chang-Zhu-Tan region.%为了揭示长株潭地区城市化快速发展时期的土地利用的数量变化和空间变化特征,加强土地空 间管制和促进

  14. 论康有为、谭嗣同对现代平等观念的接受与误读%On Kang Youwei and Tan Sitong ’s Acceptance and Misreading of the Modern Concept of Equality

    Institute of Scientific and Technical Information of China (English)

    罗贵绒

    2016-01-01

    Inrigidly stratified ancient China ,equality was only some“reckless”individuals ’marginal call;it ,however ,turned out to an axiom of mankind in the minds of intellectual elites such as Kang Youwei and Tan Sitong since the Opium War. The lofty position of equality was the result of the serious unequal positions between China and Western powers. Kang and Tan admired the advanced cannons and warships ,political systems and ideas of Western powers so much that they generously accepted their concepts of democracy , freedom ,and equality. They did not accept the concept of equality like John Locke ’s“tabula rasa”,though. Instead ,they tried to find basis from the ancient traditional Chinese ideological sources. Due to the absence of individualist tradition and the underdevelopment of capitalist commodity economy in China ,Kang and Tan misread equality in its modern sense. Nevertheless ,ever since them ,equality has attracted more and more attention of the mainstreamelites and become animportant part of China ’s modern spirit.%在等级森严的中国古代,平等只是一些“胆大妄为”之人的边缘性呼唤。然自鸦片战争开启中国的近代化以来,边缘性的平等一跃成了康有为、谭嗣同等知识精英口中所说的人类公理。而平等之所以具有如此崇高的地位,在于中国与列强之间的严重不平等的现实。列强的船坚炮利及其背后的政治制度与政治理念为康、谭等知识精英羡慕不已,于是大方接受其民主、自由、平等观念。但他们并不是以洛克式的“白板”来接受平等观念,而是从中国古代传统思想资源中找寻接受平等的依据。由于缺乏以个人为本位的传统与资本主义商品经济不发达的现状,康、谭对现代意义的平等存在着误读。然其对平等的重视使得平等进入了主流精英的视野,进而成为了中国现代精神传统的重要组成部分。

  15. 汪绂《医林纂要探源》的整理研究%The Collecting and Studying of Wang Fu's "YiLing CuanYao TanYuan"

    Institute of Scientific and Technical Information of China (English)

    王甜; 江凌圳

    2015-01-01

    [目的]对清代名家汪绂及著作《医林纂要探源》进行系统的整理研究。[方法]应用文献整理方法,对汪绂的生平、《医林纂要探源》版本进行考证,对其治学理念、学术思想进行研究评述。对《医林纂要探源》的作者、版本和主要内容进行了系统研究。[结果]汪绂为婺源段莘人,东南名儒,生平坎坷,并常识渊博,精通医药。虽未从医,但授学著书,读书细致,治学严谨,共撰写30多种书稿。《医林纂要探源》为其医学代表作,集诸家医书分类编辑而成,现存两个清刻本和一个清抄本,其中最早的是婺源和源单氏刻本,遗经堂藏板。全书以医源为先导,以中药、方剂为重心,而推《素》《灵》微言为纲领,循叙人体病变为正宗,对中医基础理论和疾病辨证论治作了全面而深刻的阐述[结论]对汪绂及其著作《医林纂要探源》系统的整理研究有重要的文献价值,汪绂细致严谨、引经据典、博采众长的治学理念和作风值得后世继承和发扬。%Objective]Collecting and studying Wang Fu and his book "YiLing CuanYao TanYuan" systematically. [Method]Literature research on Wang Fu's life and the versions of"YiLing CuanYao TanYuan", reviewing his concept of study and academic thoughts. [Result]Confucian Wang Fu wrote more than 30 manuscripts, his medical masterpiece“YiLing CuanYao TanYuan", existing versions of two Qing printed editions and one Qing transcript, guided by medical source, centered on traditional Chinese medicine and prescription, accounted for human disease, made a comprehensive and profound elaboration on the basic theory of TCM.The recipes and traditional Chinese medicine of this book have clinical significance . [Conclusion]The collecting and studying have important literature value. These are worthy of our future generations to inherit and carry forward.

  16. Comparison of mechanical properties between glutaraldehyde tanned donkey pericardium and bovine pericardium in vitro%戊二醛鞣制驴心包与牛心包的体外力学性能比较

    Institute of Scientific and Technical Information of China (English)

    陈善良; 许莉; 王雪梅; 刘羽曦; 厉泉; 张辉; 路平; 刘天起

    2012-01-01

    目的 探讨驴心包在力学性能方面是否符合生物瓣膜的制备条件.方法 用戊二醛鞣制脱细胞处理后的驴心包和牛心包进行对比研究.光镜下观察两组脱细胞效果.力学实验测定两组收缩温度、心包厚度、最大载荷、抗拉强度和撕裂强度.结果 脱细胞处理后,光镜下见戊二醛鞣制的驴心包和牛心包无残存的细胞核,而未经脱细胞处理的驴心包和牛心包可见弥漫性细胞核存在,两种心包无明显差异;驴心包组收缩温度(87.5000±0.5916)℃,牛心包组收缩温度为(87.5600±0.3715)℃,两组差异无统计学意义(P>0.05);取相同心尖部位的驴心包与牛心包比较,驴心包厚度薄,抗拉强度大(P<0.001);两者的最大载荷和撕裂强度差异无统计学意义(P>0.05).结论 戊二醛鞣制的驴心包在力学性能方面适合制作心脏瓣膜材料.%Objective To investigate donkey pericardial mechanical properties in biological valve preparation conditions. Methods Glutaraldehyde tanned acellular donkey pericardium was regarded as the experimental group, and glutaraldehyde tanned acellular bovine pericardium was regarded as the control group. The donkey pericardium and bovine pericardium were observed under a light microscope to identify the decellularized effect. The properties of temperature shrinkage, pericardial thickness, maximum load, tensile strength and tear strength were compared between the two groups. Results There were no residual nuclei in the decellularized donkey and bovine pericardium. There were many visible diffuse nuclei existing in the non-decellularized donkey and bovine pericardium. There was no difference between the two groups. The statistical analysis of shrinking temperature showed no significant difference between the experimental group (87.5000±0.5916)t and the control group( 87.5600 ±0. 371 5)℃ (P>0.05 ). The donkey pericardium were significantly thinner in thickness and higher in tensile

  17. Two stages of zircon crystallization in the Jingshan monzogranite, Bengbu Uplift: Implications for the syn-collisional granites of the Dabie-Sulu UHP orogenic belt and the climax of movement on the Tan-Lu fault

    Science.gov (United States)

    Wang, X.; Chen, J.; Griffin, W. L.; O'Reilly, S. Y.; Huang, P. Y.; Li, X.

    2011-03-01

    on the Tan-Lu fault. This suggests that the compressive movement of the Tan-Lu fault has decreased progressively since its climax at 156 Ma. These two major conclusions from the zircon studies contrast with previous interpretations of the Jingshan monzogranite as a late Jurassic post-collisional granite in the Dabie orogenic belt.

  18. READING TURKISH MODERNIZATION THROUGH WOMEN NOVELS -From the Reform to the Republic- TÜRK MODERNLEŞMESİNİ KADIN ROMANLARI ÜZERİNDEN OKUMAK -Tanzimat’tan Cumhuriyet’e-

    Directory of Open Access Journals (Sweden)

    Betül COŞKUN

    2010-10-01

    Full Text Available The Western Culture, which entered every phase of the Ottoman life after the Reform, also brought the question of the place of women in a society. Woman is seen as one of the most significant phases of modernization by the Reform Intellectuals. The idea that a new and modern society can only be formed by new and modern mothers had been a common thesis of the literary works until the proclamation of the Republic. In this stage, the female novelists, whose number was increasing, in their works dealt with the issues of modernizing women in detail. The modernization of women, and thus the stages that a society has while having process of westernization is traced through the women characters in women novels. In this work, we will analyze women modernization through characters and contexts in the novels written by female writers during the process reaching from the Reforms to the Republic. Tanzimat’tan sonra Osmanlı hayatının her safhasına giren Batı kültürü, toplum içerisinde kadının yerinin sorgulanmasını da beraberinde getirir. Kadın, Tanzimat aydını tarafından modernleşmenin en önemli aşamalarından biri olarak görülür. Yeni ve modern toplumun ancak yeni ve modern anneler tarafından kurulabileceği fikri, Cumhuriyet’in ilanına kadar edebi eserlerin ortak tezlerinden biri hâline gelir. Bu safhada sayısı artan kadın romancılar, modernleşen kadının meselelerini teferruatlı bir şekilde ele alırlar. Kadının modernleşmesi, dolayısıyla toplumun Batılılaşırken geçirdiği safhalar, kadın romanlarındaki kadın kahramanlar üzerinden takip edilebilir. Biz bu çalışmamızda Tanzimat’tan Cumhuriyet’e uzanan süreçte kadın yazarlar tarafından kaleme alınan romanlarda, kadın modernleşmesinin hangi karakterler üzerinden ve hangi meseleler bağlamında ele alındığını inceleyeceğiz.

  19. Diplomatic Game among PRC,USA and Africa in Tan Zam Railway Decision%援建坦赞铁路决策问题上的中美非外交博弈

    Institute of Scientific and Technical Information of China (English)

    沈喜彭

    2015-01-01

    There is a long diplomatic game among PRC,USA and Africa in building the Tan Zam Railway. The governments of Tanzania and Zambia preferred to accept western countries'assistance rather than China 's.American government neither gave a hand to Tanzania and Zambia,nor allowed them to ask China for help.With a positive attitude,China had prepared for building the railway all by herself.Finally,China not only succeeded in breaking USA's destruction,but also won the trust of Tanzania and Zambia.%中美非三方在援建坦赞铁路决策问题上有过复杂的外交博弈。坦赞两国希望美国等西方国家援建坦赞铁路,曾试图借重中国以获取美国的支持。美国非但不应允帮助两国修建坦赞铁路,还极力阻挠中国施以援手。中国则采取积极主动的态度,做好了独自援建坦赞铁路的有关准备,最终冲破美国的阻力,赢得了坦赞两国的信任。

  20. InterTAN髓内钉治疗股骨转子间骨折术中主钉置入困难的原因分析%Pitfalls in implantation of InterTAN for intertrochanteric femur fracture

    Institute of Scientific and Technical Information of China (English)

    高翔; 李杰; 姜勇; 宫富良; 范钦波; 范继峰; 李元城

    2015-01-01

    Objective To investigate the intraoperative technical difficulties in the implantation of InterTAN for intertrochanteric femur fracture and their countermeasures.Methods A retrospective study was conducted of the 496 patients with intertrochanteric femur fracture who had been treated with InterTAN intramedullary nails from September 2008 to August 2013 at our department.They were 172 men and 324 women, aged from 32 to 87 years at the time of fracture (average, 69.2 years).According to the AO classification, 29 cases were type 31-A1, 315 cases type 31-A2 and 152 cases type 31-A3.Intraoperative difficulties in implantation of InterTAN intramedullary nails were analyzed and countermeasures were proposed.Results We identified intraoperative technical difficulties in implantation of the main nail in the following situations: in 21 patients who had anatomic variation in femoral shaft (excessive anterior or lateral skewing), in 5 obese patients in one of whom iatrogenic fracture occurred;in 3 elderly patients, and in 17 patients with hard reduction in one of whom iatrogenic fracture occurred during the locking of a distal screw.Conclusions To deal with the difficulties in implantation of InterTAN for intertrochanteric femur fracture we propose the following 4 countermeasures: 1.Anteroposterior and lateral radiographs of the full length of the injured femur are necessary for preoperative determination of presence or absence of anatomical variations so that implantation can be adjusted during surgery.2.Vertical trajectory and sufficient reaming in the medullar canal of the proximal femur are important to reduce the possibility of iatrogenic fracture, particularly in obese patients.3.Violent hammering is prohibited and full reaming is recommended in the elderly whose bone is fragile.4.For the cases where hard fracture reduction is predicted by the preoperative evaluation, the strategy of open reduction and fixation with dynamic hip screws seems more rational or should be