Note: This page contains sample records for the topic son las tradiciones from Science.gov.
While these samples are representative of the content of Science.gov,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of Science.gov
to obtain the most current and comprehensive results.
Last update: November 12, 2013.
1

LAS INSTITUCIONES CULTURALES Y SU ACCIONAR EN LAS TRADICIONES MUSICALES. VISTO DESDE UNA PERSPECTIVA SOCIOLÓGICA  

Microsoft Academic Search

En Cuba, la preservación del patrimonio intangible, es decir, de la cultura popular y tradicional, las tradiciones orales, musicales, danzarías, etc., tienen una gran importancia en la vida de nuestras comunidades, particularmente en las zonas rurales. Para una mejor comprensión de la problemática los estudios se centran en la labor de la institución cultural y sus influencias en el desarrollo

Jaime Tamayo Rodríguez; Eyedelkis Medina García; Raida Rodríguez Noa

2012-01-01

2

Does son preference matter?  

PubMed

The demand for additional children is influenced by the presence of sons within a family. This study is based on cross-sectional data of 9416 currently married women under age 50 from a Pakistan national survey in 1979-80. The analysis suggests that having at least one son in the family influences the demand for additional children. Urban and rural comparisons indicated a higher preference for sons in urban areas. Unless the socioeconomic milieu changes, son preference is likely to remain strong in Pakistan. PMID:2808467

Ali, S M

1989-10-01

3

Raising Our Sons  

Microsoft Academic Search

Gay men become fathers for a variety of reasons. The research literature on the parenting abilities and styles of gay fathers is examined and compared with that of non-gay fathers. Particular attention is given to the idea of gay fathers raising sons in relation to cultural stereotypes about homosexual men and gender role development and identity. Rather than promoting traditional

Jerry J. Bigner

2000-01-01

4

BiSON Update  

NASA Astrophysics Data System (ADS)

We present an update on the operation of the Birmingham Solar Oscillations Network (BiSON) network including our various running statistics such as duty cycle. We also give an update regarding our status and briefly outline the foreseeable future of the network.

Allison, J.; Barnes, I.; Broomhall, A.-M.; Chaplin, W.; Davies, G.; Elsworth, Y.; Hale, S.; Jackson, B.; Miller, B.; New, R.; Fletcher, S.

2009-12-01

5

Son preference in Vietnam.  

PubMed

This article assesses the strength of son preference in Vietnam, as reflected in fertility behavior. It formulates and estimates a proportional hazards model applied to birth intervals, and a contraceptive prevalence model, using household survey data from 2,636 ever-married women aged 15-49 with at least one living child who were interviewed for the Vietnam Living Standards Survey 1992-1993. Son preference is found to be strong by world standards, but nevertheless, it has a minor effect on fertility; in its absence, the total fertility rate would fall by roughly 10 percent from the current level of about 3.2 children per woman of reproductive age. PMID:8826072

Haughton, J; Haughton, D

6

Nam Con Son Basin  

Microsoft Academic Search

The Nam Con Son basin is the largest oil and gas bearing basin in Vietnam, and has a number of producing fields. The history of studies in the basin can be divided into four periods: Pre-1975, 1976-1980, 1981-1989, and 1990-present. A number of oil companies have carried out geological and geophysical studies and conducted drilling activities in the basin. These

N. T. Tin; N. D. Ty; L. T. Hung

1994-01-01

7

Sons, Daughters, and Parental Behaviour  

Microsoft Academic Search

The prevalence of son preference and its implications for family behaviour in developing countries have received a great deal of scholarly attention, but child-gender bias is believed to be empirically unimportant in wealthy, non-traditional societies. Studies by sociologists and psychologists during the past 30 years, however, have documented consistent discrepancies between the behaviour of parents of sons and parents of

Shelly Lundberg

2005-01-01

8

Sons, Daughters, and Parental Behavior  

Microsoft Academic Search

The prevalence of son preference and its implications for family behavior in developing countries have received a great deal of scholarly attention, but child gender bias is believed to empirically unimportant in wealthy, non-traditional societies. Studies by sociologists and psychologists during the past 30 years, however, have documented consistent discrepancies between the behavior of parents of sons and parents of

Shelly Lundberg

9

Discriminación arancelaria y decisiones de localización de las empresas  

Microsoft Academic Search

El objetivo de trabajo es el de analizar los efectos que los procesos de integración económica entre los países tienen sobre las decisiones se toman en forma estratégica. Se justifica que en este contexto el tradicional argumento \\

José Méndez Naya

2006-01-01

10

Las infecciones emergentes transmitidas por garrapatas  

Microsoft Academic Search

ResumenLas infecciones transmitidas por garrapatas aparecen por todo el mundo y son bien conocidas desde hace más de 100 años. Algunas enfermedades transmitidas por garrapatas son muy comunes mientras que otras son extremadamente raras. Las técnicas genéticas moleculares modernas (y la mayor disponibilidad de la reacción en cadena de la polimerasa) han llevado al descubrimiento y la clasificación de nuevos

Ingomar Mutz

2009-01-01

11

ENTRENAMIENTO DE LAS HABILIDADES SOCIALES  

Microsoft Academic Search

No es ningún secreto que una de las partes más importantes de nuestra vida son las relaciones sociales. En cada una de las cosas que hacemos hay un componente de relaciones con los demás que determina en gran medida (facilitando o entorpeciendo) nuestra búsqueda de la felicidad. Es creencia común que las simpatía y el atractivo social de algunas personas

Nuria María Palanco López

2009-01-01

12

Should attractive males have more sons?  

Microsoft Academic Search

It is often argued that females with attractive partners should produce more sons because these sons will inherit their father's attractiveness. Numerous field and laboratory studies have addressed this hypothesis, with inconsistent results, but there is surprisingly little theoretical work on the topic. Here, we present an extensive investigation of the link between male attractive- ness and offspring sex ratios,

Tim W. Fawcett; Bram Kuijper; Ido Pen; Franz J. Weissing

2006-01-01

13

Mothers’ Predictions of their Son’s Executive Functioning Skills: Relations to Child Behavior Problems  

Microsoft Academic Search

This study examined mothers’ ability to accurately predict their sons’ performance on executive functioning tasks in relation\\u000a to the child’s behavior problems. One-hundred thirteen mothers and their 4–7 year old sons participated. From behind a one-way\\u000a mirror, mothers watched their sons perform tasks assessing inhibition and planning skills. Before each task, mothers predicted\\u000a how their sons would perform. Both the absolute

Charlotte Johnston

2011-01-01

14

Lessons from Neeraj, My Son with Autism  

Microsoft Academic Search

A mother's story of learning to accept her son Neeraj who has autism. She describes initial questions about his development to the shock of the diagnosis and then the journey of learning to accept and love him unconditionally, even in the face of dealing with a number of challenging behaviors. Throughout the story is an affirmation of what he has

Merry Barua

2007-01-01

15

A Son's Fears and a Father's Response  

ERIC Educational Resources Information Center

|In the days since the surreal horror of December 14th, the author's children have responded to the tragedy differently. His daughter is a first grader, and she lost many of her friends to the gunman. She has been melancholy, sad in a way only a child who feels but does not understand her feelings can be. His 9-year-old son has been less sad and…

Eller, Ian

2013-01-01

16

METAL GEAR SOLID 2 SONS OF LIBERTY  

Microsoft Academic Search

This work was created by editing in-game demo scenes of our PlayStation 2 game ?METAL GEAR SOLID 2 SONS OF LIBERTY? planned for a 2001 release. Almost all of the scenes consist of materials rendered at ?real time? on a home game console instead of an expensive and high-spec computer. This is our challenge striving for ?CG footage that you

2001-01-01

17

Apropiación y masificación de las tecnologías de la información y las comunicaciones (TIC) en las Mipyme  

Microsoft Academic Search

Innumerables son los beneficios que el uso de las tecnologías de la información y las comunicaciones (TIC) deriva en los procesos empresariales siendo de mayor relevancia el incremento en ventas, la disminución de costos totales, mejora en satisfacción de clientes y proveedores, mayor eficiencia, optimización de la educación del personal, mejoramiento de la comunicación con stakeholders y presencia global. Sin

GERMAN ELIECER RODRIGUEZ MELO

2011-01-01

18

Intergenerational concordance in Adult Attachment Interviews with mothers, fathers and adolescent sons and subsequent adjustment of sons to military service  

Microsoft Academic Search

The study examined: (1) the intergenerational concordance between parents and their adolescent sons using the Adult Attachment Interview (AAI) categories and state-of-mind scales; and (2) the contribution of parents' state of mind with respect to attachment to their sons' adjustment during a stressful separation, as well as the possibility that sons' AAI mediates the associations between parents' AAI and sons

Miri Scharf; Ofra Mayseless; Inbal Kivenson-Baron

2012-01-01

19

P.O.V.: Every Mother's Son  

NSDL National Science Digital Library

The trauma of losing a child can be devastating, and when that child is lost as a result of violence, it can be even more heartbreaking. The Point of View series from PBS recently produced this powerful documentary (created by Tami Gold and Kelly Anderson) that explores the experiences of three women whose sons were the victims of police brutality in the late 1990s. On this site, visitors can learn more about the program, and delve into the extra features that make this site a real treat. First, visitors can peruse the special features, which include an overview of the concept of community policing, read interviews with law enforcement officials and other experts, and finally take an interactive quiz that allows visitors to pick various options in order to improve community safety. The site also includes an area where visitors can respond to the program, along with offering a "Behind the Lens" perspective on the filmmakers themselves.

20

LAS HABILIDADES DE INTERACCIÓN SOCIAL Y LA PREPARACIÓN DE LAS FAMILIAS DE LOS NIÑOS Y DE LAS NIÑAS CON DIAGNÓSTICO PRESUNTIVO DE RETRASO MENTAL DESDE LAS PRIMERAS EDADES  

Microsoft Academic Search

Las habilidades sociales son un numeroso y variado conjunto de conductas que se ponen en juego en situaciones de interacción social, es decir, en situaciones en las que hay que relacionarse con otras personas. La Interacción social se refiere a las conductas necesarias para interactuar y relacionarse con los iguales y con los adultos de forma efectiva y mutuamente satisfactoria.

Elizabeth Gómez Núñez; Olga Lidia Núñez Rodriguez; Nemesio Jiménez Cepero; Ángel Luis Gómez Cardoso

2011-01-01

21

LA ORALIDAD COMO EXPRESIÓN DE LA CULTURA POPULAR TRADICIONAL EN LA COMUNIDAD LA JOSEFA EN CAONAO  

Microsoft Academic Search

El presente artículo tiene como título: “La oralidad como expresión de la cultura popular tradicional en la comunidad La Josefa en Caonao” se centra en analizar la significación de la tradición oral para la comunidad de la Josefa. Sobre la base de los conceptos de cultura, cultura identitaria y tradición se analiza a la tradición oral como expresión de la

Yoanelys Mirabal Pérez; Lahera Alejandre

2011-01-01

22

LAS MEDICINAS EN MI CASA Información para adultos sobre ...  

Center for Drug Evaluation (CDER)

Text Version... Dolores y fiebre son algunas de las razones más comunes por el cual las personas usan medicinas sin receta o de venta libre. ... More results from www.fda.gov/downloads/drugs/resourcesforyou

23

The Mystery of Jesus' Teaching about “The Son of Man”  

Microsoft Academic Search

For centuries a mystery has surrounded the meaning of Jesus' term “The Son of Man” in his ministry, and today it is often called “The Son of Man Problem.” Studying “Son of Man” in all of its biblical references, and apocryphal usages, together with insights from the Dead Sea Scrolls, I propose a solution that the idiom means “Priest” or

Edward A. Beckstrom

2012-01-01

24

Evidence for sexy sons in European starlings ( Sturnus vulgaris )  

Microsoft Academic Search

The “sexy son” hypothesis suggests that females obtain future fitness benefits from mating with polygynous males through the inheritance by their sons of traits contributing to mating success. We tested this hypothesis in the facultatively polygynous European starling (Sturnus vulgaris) in two ways. We first compared sons of monogynous and polygynous free-living males for their abilities in nest site acquisition

Helga Gwinner; Hubert Schwabl

2005-01-01

25

Predictors of father?son communication about sexuality  

Microsoft Academic Search

Examining the factors that influence adolescents’ sexual behaviors is crucial for understanding why they often engage in risky sexual behaviors. Using social cognitive theory, we examined predictors of father?son communication about sexuality. Fathers (N = 155) of adolescent sons completed a survey measuring 12 variables, including self?efficacy and outcome expectations. We found that (a) son's pubertal development, father's sex?based values,

Sally T. Lehr; Alice S. Demi; Colleen DiIorio; Jeffrey Facteau

2005-01-01

26

Is the distant relationship of fathers and homosexual sons related to the sons' erotic preference for male partners, or to the sons' atypical gender identity, or to both?  

PubMed

Study 1 compared the retrospectively reported father-son relationships of four groups of adult males: (a) Gynephiles (males who erotically prefer physically mature females), (b) androphiles (who prefer physically mature males), (c) a combined group of heterosexual pedophiles and pedohebephiles (the latter being attracted to pubescent as well as prepubescent females), and (d) a combined group of homosexual pedophiles and pedohebephiles (the latter attracted to pubescent as well as prepubescent males). The gynephiles were paid volunteers; the latter three groups were patients. The androphiles, the only group among those compared known to exhibit a measurably greater degree of cross gender identity in childhood, were also the only group to report significantly poorer father-son relations. The homosexual pedo/pedohebephiles, who also prefer male partners but who exhibit typical male gender identity in childhood, did not differ in father-son relations from the gynephiles or the heterosexual pedo/pedohebephiles. Study 2 showed that, within a sample of nonpatient volunteer androphiles, those individuals who reported the greatest degree of cross gender behavior in childhood also tended to report the worst relationships with their fathers. This correlation was replicated within a sample of androphilic patients in Study 3. The consistent pattern of results obtained from these three studies suggests that the emotionally distant relationships of fathers and androphilic sons relate to the sons' atypical childhood gender identity (or observable gender role behavior) rather than to the sons' erotic preference for male partners per se. PMID:6644002

Freund, K; Blanchard, R

1983-01-01

27

A test of the "sexy son" hypothesis: sons of polygynous collared flycatchers do not inherit their fathers' mating status.  

PubMed

According to the original "sexy son" hypothesis, a female may benefit from pairing with an already-mated male despite a reduction in fecundity because her sons inherit their father's attractiveness. We used data from a long-term study of collared flycatchers (Ficedula albicollis) collected during 24 years to test this prediction. Our results show that the sons of polygynously mated females fledged in poor condition and therefore did not inherit their father's large forehead patch (a condition-dependent display trait) or mating status. From the female's perspective, polygynous pairing resulted in fewer recruited grandchildren than did a monogamous pairing. The reproductive value of sons did not outweigh the fecundity costs of polygyny because the low paternal care reduced the attractiveness of sons. When there are long-lasting parental effects on offspring attractiveness, costs of polygyny may include the production of nonsexy sons. PMID:16670988

Gustafsson, Lars; Qvarnström, Anna

2005-12-12

28

Son Preference and Sex Selection Among Hindus in India  

Microsoft Academic Search

There is strong pressure among Hindus to prefer sons, and this is most apparent through the example of India’s exceptionally high prevalence of sex-selective abortions, and by other practices such as female infanticide and neglect that contribute to excess female mortality. The paper examines how, why, and to what degree son preference has a detrimental impact on the survival and

Sherry Aldrich Sineath

2004-01-01

29

Sexual Orientation of Adult Sons of Gay Fathers  

Microsoft Academic Search

The sexual development of children of gay and lesbian parents is interesting for both scientific and social reasons. The present study is the largest to date to focus on the sexual orientation of adult sons of gay men. From advertisements in gay publications, 55 gay or bisexual men were recruited who reported on 82 sons at least 17 years of

J. Michael Bailey; David Bobrow; Marilyn Wolfe; Sarah Mikach

1995-01-01

30

Like Godfather, Like Son: Exploring the Intergenerational Nature of Crime  

ERIC Educational Resources Information Center

|Sons (daughters) with criminal fathers have 2.06 (2.66) times higher odds of having a criminal conviction than those with noncriminal fathers. One additional paternal sentence increases sons' (daughters') convictions by 32 (53) percent. Compared to traditional labor market measures, the intergenerational transmission of crime is lower than that…

Hjalmarsson, Randi; Lindquist, Matthew J.

2012-01-01

31

Búsqueda de exoplanetas: ?`Cuán confiables son las observaciones obtenidas mediante telescopios terrestres?  

NASA Astrophysics Data System (ADS)

The main goal of this work is to present a model that generates synthetic light curves of primary transits, comparable to real observations, to study transit timing variations (TTV). Considering that we can observe the sky from different virtual observatories, we simulated observations of primary transits caused by a hot-Jupiter. We artificially added a perturbation caused by an Earth-like exoplanet in a 3:2 mean motion resonance. These simulations would allow to analyze the degree of distorsion that the light curves admit, in order to recover back the induced signal by the exoplanet. FULL TEXT IN SPANISH

von Essen, C.; Páez, R. I.; Schmitt, J. H. M. M.

32

¿Las Experiencias Paranormales son Psicológicamente Perturbadoras? Una Encuesta Comparando Estudiantes Universitarios y Aficionados a Temas Paranormales  

Microsoft Academic Search

A survey of anomalous\\/paranormal experiences was carried out in two groups: readers of paranormal issues (RPT) ( n= 432) and psychology undergraduate students (n=392). A questionnaire was devised in order to measure type and frequency of experiences and the degree of disturbance they generated. Over two thirds of the RPT respondents and half of the student respondents reported to have

Daniel E. Gómez Montanelli; Alejandro Parra

33

The Telephone Connection: An Interview with Ernest Hemingway's Son.  

ERIC Educational Resources Information Center

|Relates how a conference call to Ernest Hemingway's son, Gregory, resolved questions and brought understanding and excitement to a group of Iowa high school students enrolled in a 12-week Hemingway seminar. (FL)|

Workman, Brooke

1979-01-01

34

Son Preference, Marriage, and Intergenerational Transfer in Rural China  

Microsoft Academic Search

Rural Chinese society has historically been dominated by a rigid male-centered patrilineal family system and virilocal marriage\\u000a remains overwhelmingly dominant. Under this system, parents call in a daughter-in-law for each of their sons, and all sons\\u000a are entitled to stay home after marriage and coreside with their parents for a period of time until family division occurs\\u000a or until both

MARCUS W. FELDMAN; Shripad Tuljapurkar; Shuzhuo Li; Xiaoyi Jin; Nan Li

35

The Transmission of Parenting from Fathers to Sons  

PubMed Central

SYNOPSIS Objective We address the extent to which parenting practices of fathers and mothers are associated with their sons’ parenting behaviors as young adults and whether adolescent behavior explains this association. Design Data come from 409 young men interviewed in the 2006 Young Adult study of the 1979 National Longitudinal Survey of Youth. Results Men whose fathers were positively involved with them when growing up report more positive parenting of their own children, a direct effect. Less harsh mothering and more positive fathering are associated with reduced adolescent behavior problems, and positive mothering is associated with positive adjustment of these young men as adolescents. However, neither adolescent problem behavior nor positive adjustment is associated with young men’s fathering of their own children, and thus does not explain the association between the fathering young men received and their own fathering behavior. Conclusions Men’s parenting of their sons can have a long-term direct effect on how their sons parent their own children. Although parenting is associated with both positive and negative behaviors of sons during adolescence, these adolescent behaviors are not directly linked to later parenting behavior when sons have their own children. More research is needed to examine mediation mechanisms for the intergenerational transmission of parenting.

Hofferth, Sandra L.; Pleck, Joseph H.; Vesely, Colleen K.

2012-01-01

36

Son preference and household income in rural China.  

PubMed

Why is it that couples who have a son or whose last child is a son earn higher conditional income? To solve this curious case we tell a detective story: evidence of a phenomenon to be explained, a parade of suspects, a process of elimination from the enquiry, and then the denouement. Given the draconian family planning policy and a common perception that there is strong son preference in rural China, we postulate two main hypotheses: income-based sex selection making it more likely that richer households have sons, and an incentive for households with sons to raise their income. Tests of each hypothesis are conducted. Taken as a whole, the tests cannot reject either hypothesis but they tend to favour the incentive hypothesis; and there is evidence in support of the channels through which the incentive effect might operate. To our knowledge, this is the first study to test these hypotheses against each other in rural China and more generally in developing countries. PMID:21280415

Knight, John; Shi, Li; Quheng, Deng

2010-01-01

37

African American Single Mothers Raising Sons: Implications for Family Therapy  

ERIC Educational Resources Information Center

Being raised by a single mother is one factor that has been suggested as contributing to the plight of African American males. Yet few studies have focused specifically on African American single mothers' experiences with raising sons. This qualitative study explored the following questions: (1) What are the experiences of African American single…

Gantt, Ann L.; Greif, Geoffrey L.

2009-01-01

38

Transmission of Proteus syndrome from father to son?  

Microsoft Academic Search

We present a male infant with cranial hemi-hypertrophy, a lymphangioma, a lipoma, and epidermal naevi. A diagnosis of Proteus syndrome was made. His father had had a large lymphangioma resected from the right side of the face as a child. We propose that Proteus syndrome has been transmitted from father to son.

J Goodship; A Redfearn; D Milligan; D Gardner-Medwin; J Burn

1991-01-01

39

Origins, Form, and Development of the Son Jarocho: Veracruz, Mexico.  

ERIC Educational Resources Information Center

|Son Jarocho (specifically from Veracruz) is a song-and-dance form originating in Spain and implanted in Mexico during 17th- and 18th-century colonization. The jarocho style of music today is one of Latin America's most unique forms, using one to four instruments and characterized by its distinctive rhythm. (LC)|

Loza, Steven J.

1982-01-01

40

Inherited Predisposition to Alcoholism: Characteristics of Sons of Male Alcoholics  

Microsoft Academic Search

Sons of male alcoholics (SOMAs) are at markedly heightened genetic risk for the development of alcohol abuse. Study of SOMAs could therefore conceivably increase the efficiency of research aimed at uncovering those heritable factors that predispose to alcoholism. SOMAs manifest observable behavioral, cognitive, and psychophysiological abnormalities while sober and react idiosyncratically to alcohol intoxication. They are most commonly described as

Robert O. Pihl; Jordan Peterson; Peter R. Finn

1990-01-01

41

Talking to Write: A Mother and Son at Home.  

ERIC Educational Resources Information Center

Describes how the author participated in her son Carl's writing process at home when she realized his growing resistance to writing in school in the second grade. Examines the in-class composing process and Carl's frustrations. Describes how she became Carl's scribe at home as he gradually discovered that writing could be a symbolic representation…

Kelso, Elizabeth Baumann

2000-01-01

42

Las Opciones Reales y su influencia en la valoración de empresas  

Microsoft Academic Search

Las opciones reales son derechos que las empresas poseen sobre determinados activos y que les permiten adaptarse al entorno con mayor flexibilidad y soportando menores riesgos. Desde la perspectiva de las opciones reales, el activo total de la empresa se compone de las inversiones ejecutadas y en funcionamiento y de sus oportunidades futuras de inversión. Por tanto, se considera que

Manuel Espitia Escuer; Gema Pastor Agustín

2003-01-01

43

Son Preference in Indian Families: Absolute Versus Relative Wealth Effects  

Microsoft Academic Search

The desire for male children is prevalent in India, where son preference has been shown to affect fertility behavior and intrahousehold\\u000a allocation of resources. Economic theory predicts less gender discrimination in wealthier households, but demographers and\\u000a sociologists have argued that wealth can exacerbate bias in the Indian context. I argue that these apparently conflicting\\u000a theories can be reconciled and simultaneously

Sylvestre Gaudin

2011-01-01

44

Jury finds father guilty of injecting son with HIV.  

PubMed

Brian Stewart was found guilty by a Missouri jury of injecting his son with HIV-tainted blood to avoid paying child support. Stewart's first-degree assault conviction was based entirely on circumstantial evidence. The defense attorneys attempted to shift blame to a convicted child molester and to injection drug users who had visited the boy's home. However, all of them tested negative for HIV. The jury recommended a life sentence for Stewart. PMID:11366045

1998-12-25

45

Neogene sequence stratigraphy, Nam Con Son Basin, offshore Vietnam  

Microsoft Academic Search

An integrated well log, biostratigraphic, and seismic stratigraphic study of Miocene to Recent deltaic sediments deposited in the Nam Con Son Basin offshore from southern Vietnam shows the influence of eustacy and tectonics on sequence development. Sediments consist of Oligocene non-marine rift-basin fill (Cau Formation), early to middle Miocene tide-dominated delta plain to delta front sediments (TB 1.5 to TB

K. J. McMillen; E. K. Lee; S. S. Hong

1996-01-01

46

A Paradox of Love: The Manifestation of Life and the Moral Sentiment in Dorothy Canfield Fisher’s Her Son’s Wife  

Microsoft Academic Search

This paper stems from and is an elaboration of my recently completed doctoral dissertation ‘‘A Steady Flameless Light: The Phenomenology of Realness in Dorothy Canfield Fisher’s Th e Brimming Cup, Her Son’s W ife, and Rough-Hewn’’.1 Here I will focus on the phenomenology of the moral sentiment in Her Son’s W ife (1926). When taken at face value, the moral

Annika Ljung-Baruth

47

[Tradicional use of medicinal plants with diuretic properties at Quemado de Güines Municipality, Cuba].  

PubMed

Medicinal plants are highly rich in Cuba and an amount of 179 species have been reported to be used by the population for diuretic purposes, nevertheless, no experimental validation has supported this effect. This study presents the relative importance of the medicinal plant species most widely used for diuretic purposes in two communities of Quemado de Guines Municipality, Villa Clara province. The information was obtained through the application of an interview to 85 inhabitants, from which 80 were random surveys to people with a great knowledge of plants, and five to herbalists and doctors practicing natural medicine. The etnopharmacological information was registered (gathered) by means of the "Tradicional of the Medicine of the Island" (TRAMIL) methodology and the interesting species were identified by a botanist and deposited in the Herbarium of the Central University "Marta Abreu" from Villa Clara, registered in the Index Herbarium, published periodically by the International Association for Plant Taxonomy. The data was analyzed by means of the indexes of use values and significant use level after TRAMIL. From the total of 19 botanical families, 26 medicinal species were identified, and 10 plants resulted with higher significant use and higher indexes of use values. From the plants reported as diuretics, 53.8% have not been experimentally validated in Cuba, the rest of the identified species have been validated at a preclinical level in some centers in the country, but its use have not been authorized as phytochemicals by the Cuban Regulatory Agency. The documentation related to the use of medicinal plants in the studied areas reveals that the traditional knowledge continues deeply rooted in the communities, and popular wisdom is kept through the representative images of the herbalist and people with considerable knowledge about this topic. PMID:22208098

Pérez Machín, Maykel; Sueiro, Mario L; de la Cruz, Ania; Boffill, María A; Morón, Francisco; Méndez, Orestes R; Cárdenas, Jaqueline

2011-12-01

48

Village Context, Women's Status, and Son Preference among Rural Chinese Women  

ERIC Educational Resources Information Center

|This study analyzes the variation in one measure of son preference that is of particular relevance in rural China: whether a woman considers it important to have a son, and the reasons why sons are important. To summarize our conclusions, we find that the expectation that a son will provide financial support in old age is strongly associated with…

Li, Jianghong; Lavely, William

2003-01-01

49

Sexy sons: a dead end for cytoplasmic genes.  

PubMed

Critics of sexual conflict theory argue that females may gain a net reproductive benefit from mating with manipulative males because the direct costs that they suffer may be offset by the production of sexy, i.e. manipulative, sons. However, this exclusive focus on nuclear gene effects represents an incomplete view of female fitness. Females differ fundamentally from males in transmitting not only nuclear genes but also a wide range of cytoplasmic genetic elements (CGEs) that can have profound effects, from male killing to influencing development of the nervous system and cognitive ability. Maternal transmission of CGEs has two major implications for sexual selection. First, the evolution of male fitness traits, such as sperm competitive ability, may be constrained because response to selection on mitochondrial genomes can occur only through the female line. Second, CGEs bear the direct costs of male manipulation but gain no indirect benefits when females produce sexy sons. This should result in perpetual antagonistic coevolution between nuclear genes involved in male manipulation and CGEs that promote female resistance to male sexually selected traits. Explicit consideration of the consequences of selection acting on CGEs is therefore necessary for a better understanding of the relationship between sexual selection and sexual conflict. PMID:15504002

Zeh, Jeanne A

2004-08-01

50

Estrategias sobre innovacion en las empresas multinacionales agroalimentarias  

Microsoft Academic Search

Las multinacionales agroalimentarias son las principales innovadoras del sector agroalimentario mundial y agentes econ�micos fundamentales del cambio tecnol�gico en el sector agroalimentario espa�ol. El estudio del comportamiento innovador de las multinacionales agroalimentarias presenta inter�s puesto que el 50% de la tecnolog�a relacionada mundialmente con la alimentaci�n procede de este tipo de empresas. Bas�ndonos en una muestra de m�s de 16.000

Ruth Rama; Oscar Alfranca; Nicholas von Tunzelmann

2003-01-01

51

Two generations of spore research: from father to son.  

PubMed

Harlyn O. Halvorson has played an active and defining role in the field of microbiology for more than 40 years. In this article, he reminisces on the major influence that his father, H. Orin Halvorson, had in the direction of his professional life. The two H.O. Halvorson's, often confused in the literature, became one of the only two father and son pairs to head the American Society for Microbiology in 1954 and 1977, respectively. Major scientists of the era, their research and their collaborations, are remembered in relation to their main works. Harlyn O. Halvorson's interest in bacterial and yeast spores, and especially spore germination in bacilli, is the highlight of this memoir. His scientific research thrusts, leadership at Marine Biological laboratories, Woods Hole, NACSEX (North American-Cuban Scientific Exchange) and elsewhere, his dedication to advanced students and numerous other endeavors, both scientific and political, are told here. PMID:9253754

Halvorson, H O

1997-06-01

52

Ethics of intergenerational (father-to-son) sperm donation.  

PubMed

In the ever changing field of reproductive medicine, clinics are regularly confronted with requests for novel variants of medically assisted reproduction. Particularly third-party (assisted) reproduction, which requires the involvement of an oocyte or sperm donor, is ethically and psychologically complex due to the parties involved, but nevertheless widely accepted. A particular type of third party reproduction concerns intrafamilial medically assisted reproduction (IMAR), where the donor is a family member of the recipients. In IMAR, some of the ethical and psychological issues associated with third party reproduction are intensified. The precise impact and consequences, however, remain speculative due to the lack of information regarding IMAR. Both the ESHRE Task Force on Ethics and Law and the Human Fertilization and Embryology Authority have recently highlighted the lack of information and the need for debate. In order to contribute to the discussion and knowledge on IMAR, we present a couple that recently visited our academic clinic with a request for a very particular variant of IMAR: first degree, intergenerational father-to-son sperm donation. As our academic hospital did not have experience with this variant of IMAR, our interdisciplinary Ethics Committee for Reproductive Medicine extensively discussed the request, resulting in an advisory report on the ethics of IMAR in general and father-to-son sperm donation in particular. Here, we will first present the andrological and social background of the couple and subsequently discuss the ethical considerations that led to the approval of their request. We will conclude the paper with recommendations for a morally sound practice of IMAR. PMID:22402208

Bredenoord, Annelien L; Lock, Matthias T W T; Broekmans, Frank J M

2012-03-07

53

Neogene sequence stratigraphy, Nam Con Son Basin, offshore Vietnam  

SciTech Connect

An integrated well log, biostratigraphic, and seismic stratigraphic study of Miocene to Recent deltaic sediments deposited in the Nam Con Son Basin offshore from southern Vietnam shows the influence of eustacy and tectonics on sequence development. Sediments consist of Oligocene non-marine rift-basin fill (Cau Formation), early to middle Miocene tide-dominated delta plain to delta front sediments (TB 1.5 to TB 2.5, Due and Thong Formations), and late Miocene to Recent marine shelf sediments (TB. 2.6 to TB 3.1 0, Mang Cau, Nam Con Son, and Bien Dong Formations). Eustacy controlled the timing of key surfaces and sand distribution in the tectonically-quiet early Miocene. Tectonic effects on middle to late Miocene sequence development consist of thick transgressive systems tracts due to basin-wide subsidence and transgression, sand distribution in the basin center, and carbonate sedimentation on isolated fault blocks within the basin. Third-order sequence boundaries (SB) are identified by spore peaks, sand stacking patterns, and channel incision. In the basin center, widespread shale beds with coal occur above sequence boundaries followed by transgressive sandstone units. These TST sandstones merge toward the basin margin where they lie on older HST sandstones. Maximum flooding surfaces (MFS) have abundant marine microfossils and mangrove pollen, a change in sand stacking pattern, and often a strong seismic reflection with downlap. Fourth-order genetic-type sequences are also interpreted. The MFS is the easiest marker to identify and correlate on well logs. Fourth-order SB occur within these genetic units but are harder to identify and correlate.

McMillen, K.J. (Beaver Creek Tech. Co., Mason, TX (United States)); Do Van Luu; Lee, E.K.; Hong, S.S. (PEDCO, Ho Chi Minh City (Viet Nam))

1996-01-01

54

Son of Notch, a Winged-helix Gene Involved in Boundary Formation in the Drosophila Wing  

PubMed Central

Summary A P element enhancer trap screen was conducted to identify genes involved in dorsal-ventral boundary formation in Drosophila. The son of Notch (son) gene was identified by the son2205 enhancer trap insertion, which is a partial loss-of-function mutation. Based on son2205 mutant phenotypes and genetic interactions with Notch and wingless mutations, we conclude that son participates in wing development, and functions in the Notch signaling pathway at the dorsal-ventral boundary in the wing. Notch signaling pathway components activate son enhancer trap expression in wing cells. son enhancer trap expression is regulated positively by wingless, and negatively by cut in boundary cells. Ectopic Son protein induces wingless and cut expression in wing discs. We hypothesize that there is positive feedback regulation of son by wingless, and negative regulation by cut at the dorsal-ventral boundary during wing development.

Park, Eungsik; Suh, Hyunsuk; Kim, Changsoo; Park, Seungwoo; Dorsett, Dale; Yim, Jeongbin

2008-01-01

55

[The Dodarts- father and son- physicians to the king].  

PubMed

Denis Dodart, barrister grandson, was born in Paris in 1634 and practiced especially botanical studies. He taught pharmacy and was, at first, the Duchesse de Longueville's own Doctor and, then, of the Princesse de Conti before acceeding to the rank of Conseiller-médecin to Louis XIV. In 1673, he was accepted as a member of the Academie Royale des Sciences (as botanist). In 1698, he became medical doctor to the Court retinue and Madame de Maintenon chose him for giving cares to Saint-Cyr schoolgirls. He died november the 5th 1707 and buried in Saint Germain l'Auxerrois Church, in Paris. His son : Claude Jean-Baptiste, born in 1664, was admitted Doctor to the Faculté de médecine of Paris in 1688 ; soon patronized by the Princesse de Conti he obtained the same appointment of Saint-Cyr School's Doctor than his father. Then, in 1693, he got also the same appointment to the Court retinue. In 1701, the Duc d'Orleans took him as "Principal Docteur". He proceeded with that title to the young Duc de Bretagne's suite and, further, to the Duc de Bourgogne. He became Louis XV's "Principal Docteur" on April the 6th, 1718 ; he died, November the 25th 1730, in Paris. PMID:11625633

Peumery, J J

56

Son preference, sex selection, and the "new" new reproductive technologies.  

PubMed

Throughout recorded history, humans have tried to influence the sex of their offspring, through pregnancy injunctions, infanticide, and infant/child neglect. Reproductive technologies developed in the late 20th century allow determination of the sex of the offspring during pregnancy, making "sex selection" through abortion possible. Especially in parts of East and South Asia, sex selection against female fetuses has had dramatic consequences for male/female sex ratios. However, "newer" new reproductive technologies, such as prenatal genetic diagnosis and DNA-weighted semen selection, can now be applied for sex selection; eventually, the latter technology may become easily accessible as a noninvasive method. The prospects of these new technologies for sex selection must be considered in the light of cultural values surrounding son preference / daughter discrimination in many parts of the world, most notably Asia, as well as preferences for a "gender-balanced" family in much of the West. The ethical issues surrounding these technologies, such as the right to life and the equal treatment of female children, are potentially profound, but legislating the appropriate use of these "newest" new reproductive technologies will be difficult. PMID:12800886

van Balen, Frank; Inhorn, Marcia C

2003-01-01

57

Human affection exchange: II. Affectionate communication in father-son relationships.  

PubMed

The father-son dyad might be the most socially significant male-male relationship in the life course, yet its negative qualities have been the sole focus in most research on the relationship. One communicative aspect that has received little scholarly attention is the expression of affection between fathers and sons, despite the strong correlation of affectionate communication with positive involvement, closeness, and relational satisfaction for fathers and sons. In 2 studies, the authors tested hypotheses about father-son affection that were derived from affection exchange theory (K. Floyd, in press). Results indicated that U.S. men are more affectionate with biological sons than with stepsons or adopted sons and that they are more affectionate with their biological sons than their biological sons are with them. PMID:14609055

Floyd, Kory; Morman, Mark T

2003-10-01

58

Caring for Frail Elderly Parents: A Comparison of Adult Sons and Daughters.  

ERIC Educational Resources Information Center

|Examined the impact of various factors on perceived emotional strain of adult son and daughter caregivers of frail elderly parents. Daughters experienced higher levels of emotional strain than did sons. Daughters' emotional strain predicted by interference with work and quality of relationship with parent. Sons' stressors also discussed. (RJM)|

Mui, Ada C.

1995-01-01

59

Transfer of Decision Making and Farm Tasks from Father to Son in Father-and-Son Farming Arrangements. RS-51, August 1976.  

ERIC Educational Resources Information Center

|The study examined the division of decision-making and farm tasks in a joint father and son enterprise, the extent to which the decisions tended to be shared equally, and the extent to which the principal operator had responsibility for those tasks not shared. Data were collected in 1974 from fathers and sons who were joint operators of 145 farms…

Coughenour, C. Milton; And Others

60

Integrando los Beneficios para el Cliente de Servicios Bancarios: Banca Tradicional Versus Banca en Internet Integrating the Benefits for Bank Service Customers: Traditional Versus Internet Banking  

Microsoft Academic Search

Palabras clave: banca en Internet, banca tradicional, imagen, confianza, reputación, seguridad. ABSTRACT. This study examines consumer preferences for bank services in the context of combined banking, that is, internet banking in addition to traditional banking. Consequently, bank offerings are evaluated in terms of both, customer services that are delivered directly by the bank employees and those services that are provided

Eduardo Torres; Arturo Z. Vásquez-Párraga

61

Improving HPV Vaccine Delivery: A National Study of Parents and their Adolescent Sons  

PubMed Central

Purpose We examined parents’ and adolescents’ preferences regarding potential strategies to increase HPV vaccination rates, including offering the vaccine in alternative settings, concomitant administration of vaccines, and optimizing the structure of vaccination medical visits. Methods A national sample of US parents of adolescent males ages 11–17 years (n=506) and their sons (n=391) completed online surveys in August and September 2010. We used analysis of variance for mixed designs to examine preferences for vaccination settings. Results Parents and sons were most comfortable with sons getting HPV vaccine in a doctor’s office. Parents of sons who had not visited their regular healthcare providers in the last year were more comfortable with sons getting HPV vaccine at a public clinic (p<0.001) or school (p<0.05) compared to parents whose sons had recent visits. Results from the son survey showed a similar pattern. Parents and sons reported moderate levels of acceptability of concomitant administration. They most preferred to have the three HPV vaccine shots administered during brief nurse visits. Conclusion Offering HPV vaccine in alternative settings and administering it with other recommended adolescent vaccines may increase uptake among adolescent males. Parents and sons may prefer for HPV vaccination to occur during brief nurse visits.

Reiter, Paul L.; McRee, Annie-Laurie; Pepper, Jessica K.; Chantala, Kim; Brewer, Noel T.

2012-01-01

62

Marital conflict and boys' peer relationships: The mediating role of mother-son emotional reciprocity  

Microsoft Academic Search

This study examined the role of mother-son emotional reciprocity in connections between marital conflict and the quality of boys' peer relationships. Parents from 84 intact families with preadolescent boys reported on the level of conflict in their marital relationship. Observations of mother-son interaction were coded for emotional reciprocity, and assess- ments of boys' peer relationships were obtained from both teachers

Eric W. Lindsey; Carol MacKinnon-Lewis; Jessica Campbell; James M. Frabutt; Michael E. Lamb

2002-01-01

63

Father-Son Inter-Generational Transmission of Authoritarian Paternal Attitudes.  

ERIC Educational Resources Information Center

|Attempted to determine authoritarian paternal attitude inter-generational transmission in fathers and sons (N=75). Results suggested that authoritarian paternal attitudes could be indicated in terms of five factors: Dominant, Rigidity, Conformity, Intolerant, and Uncreative; and that the sons expressed strongly the authoritarian attitudes of…

Peretti, Peter O.; Statum, Jo Ann

1984-01-01

64

Bringing Up Boys: A Parenting Manual for Sole Mothers Raising Sons.  

ERIC Educational Resources Information Center

|This manual for parent educators presents the "Bringing Up Boys" program, a series of group sessions designed for sole mothers raising sons up to age 12. Mothers raising sons without a father's input face a range of concerns. Participants are encouraged to share ideas and experiences in a supportive, non-judgmental environment. The program's…

Howard, Jo

65

The Demand for Sons: Evidence from Divorce, Fertility, and Shotgun Marriage  

Microsoft Academic Search

This paper shows how parental preferences for sons versus daughters affect divorce, child custody, marriage, shotgun marriage when the sex of the child is known before birth, and fertility stopping rules. We document that parents with girls are significantly more likely to be divorced, that divorced fathers are more likely to have custody of their sons, and that women with

Gordon B. Dahl; Enrico Moretti

2004-01-01

66

Do Sons or Daughters Give More Money to Parents in Urban China?  

ERIC Educational Resources Information Center

|The patriarchal structure of the traditional Chinese family suggests that sons, more than daughters, provide financial support to elderly parents. The norm of receiving support in old age primarily from sons, however, may have been undermined by dramatic demographic, economic, and cultural changes occurring over the last several decades in China,…

Xie, Yu; Zhu, Haiyan

2009-01-01

67

Effective field theory for the SO(n) bilinear-biquadratic spin chain.  

PubMed

We present a low-energy effective field theory to describe the SO(n) bilinear-biquadratic spin chain. We start with n=6 and construct the effective theory by using six Majorana fermions. After determining various correlation functions, we characterize the phases and establish the relation between the effective theories for SO(6) and SO(5). Together with the known results for n=3 and 4, a reduction mechanism is proposed to understand the ground state for arbitrary SO(n). Also, we provide a generalization of the Lieb-Schultz-Mattis theorem for SO(n). The implications of our results for entanglement and correlation functions are discussed. PMID:21902426

Tu, Hong-Hao; Orús, Román

2011-08-09

68

Native Sons  

ERIC Educational Resources Information Center

In the 1960s, in the midst of Vietnam War protests and the emergence of the Black power movement, students John Garland and James Renick worked as campus advocates to change the environment and curricula at Central State University. Today, Garland, president of Central State, and his college friend Renick, who began serving as senior adviser to…

Anderson, Michelle D.

2009-01-01

69

Native Sons  

ERIC Educational Resources Information Center

|In the 1960s, in the midst of Vietnam War protests and the emergence of the Black power movement, students John Garland and James Renick worked as campus advocates to change the environment and curricula at Central State University. Today, Garland, president of Central State, and his college friend Renick, who began serving as senior adviser to…

Anderson, Michelle D.

2009-01-01

70

SON Controls Cell Cycle Progression by Coordinated Regulation of RNA Splicing  

PubMed Central

SUMMARY It has been suspected that cell cycle progression might be functionally coupled with RNA processing. However, little is known about the role of the precise splicing control in cell cycle progression. Here, we report that SON, a large Ser/Arg (SR)-related protein, is a splicing co-factor contributing to efficient splicing of cell cycle regulators. Down-regulation of SON leads to severe impairment of spindle pole separation, microtubule dynamics, and genome integrity. These molecular defects result from inadequate RNA splicing of a specific set of cell cycle-related genes that possess weak splice sites. Furthermore, we show that SON facilitates the interaction of SR proteins with RNA polymerase II and other key spliceosome components, suggesting its function in efficient co-transcriptional RNA processing. These results reveal a mechanism for controlling cell cycle progression through SON-dependent constitutive splicing at suboptimal splice sites, with strong implications for its role in cancer and other human diseases.

Ahn, Eun-Young; DeKelver, Russell C.; Lo, Miao-Chia; Nguyen, Tuyet Ann; Matsuura, Shinobu; Boyapati, Anita; Pandit, Shatakshi; Fu, Xiang-Dong; Zhang, Dong-Er

2011-01-01

71

SON is a spliceosome-associated factor required for mitotic progression  

PubMed Central

The eukaryotic RNA splicing machinery is dedicated to the daunting task of excising intronic sequences on the many nascent RNA transcripts in a cell, and in doing so facilitates proper translation of its transcriptome. Notably, emerging evidence suggests that RNA splicing may also play direct roles in maintaining genome stability. Here we report the identification of the RNA/DNA-binding protein SON as a component of spliceosome that plays pleiotropic roles during mitotic progression. We found that SON is essential for cell proliferation, and that its inactivation triggers a MAD2-dependent mitotic delay. Moreover, SON deficiency is accompanied by defective chromosome congression, compromised chromosome segregation and cytokinesis, which in turn contributes to cellular aneuploidy and cell death. In summary, our study uncovers a specific link between SON and mitosis, and highlights the potential of RNA processing as additional regulatory mechanisms that govern cell proliferation and division.

Sy, Shirley MH; Leung, Ka Man; Ching, Yick-Pang; Tipoe, George L; Man, Cornelia; Dong, Shuo

2010-01-01

72

Telecom I+D03 - SON Use Case Study “Energy Saving” for LTE eNBs  

Microsoft Academic Search

The 3GPP is defining a next generation radio access network called LTE (Long Term Evolution), which introduces several improvements respect current mobile systems, one of them are self-organization and self-optimization functions (SON) in base stations (eNB) and OM subsystem, that suppose a considerable increase on the network “intelligence”. This paper discusses the application of a SON function, Energy Saving, and

E. Mino; E. Torrecilla; L. M. del Apio; I. Berberana

2010-01-01

73

Preference for Sons, Family Size, and Sex Ratio: An Empirical Study in Korea  

Microsoft Academic Search

This study investigates the effects of son preference on sex ratio and fertility at the family level, utilizing World Fertility\\u000a Survey data for Korea, whose population is known to have a strong preference for sons and a fairly high level of contraceptive\\u000a use. The sex ratio (number of males per 100 females) of siblings in small families is considerably higher

Chai Bin Park

1983-01-01

74

Chern-Simons theories on SO(N) and Sp(2N) and link polynomials  

NASA Astrophysics Data System (ADS)

We obtain the skein relations for link polynomials from the Chern-Simons theories on SO(N) and Sp(2N), using Witten's method which he has used in order to obtain such a relation for the Jones polynomial in the case of SU(N). We show that for SO(N) and Sp(2N) these polynomials are related to the Dubrovnik polynomial.

Kim, T. W.; Cho, B. H.; Park, S. U.

1990-12-01

75

Sur le facteur de croissance du germe de blé. Son extraction par l'acétate de plomb et son action sur un champignon  

Microsoft Academic Search

1.La technique basée sur l'action de l'acétate de plomb permet, à partir du germe de blé, de concentrer un facteur de croissance agissant avec intensité sur le développment de Phycomyces en milieu synthétique.2.Cette technique ne permet pas d'attribuer au bios, non isolé, les phénomènes observés, la vitamine B 1 n'étant pas précipitée par l'acétate de plomb, et son action à

W. H. Schopfer

1934-01-01

76

Actitudes de los candidatos y maestros de ciencias en servicio acerca del uso de las herramientas computadorizadas en las clases de ciencias  

NASA Astrophysics Data System (ADS)

Este estudio examino y comparo las actitudes de los candidatos a maestros de ciencias y los maestros de ciencias en servicio acerca de la utilizacion de las herramientas computadorizadas en las clases de ciencias. Tambien identifico y diferencio el uso que ellos dan a estas herramientas en las clases de ciencias. Este estudio presenta un diseno descriptivo exploratorio. Constituyeron la muestra trescientos diez sujetos que fueron candidatos a maestros de ciencias o maestros de ciencias en servicio. Para recoger los datos se construyo y valido un cuestionario de treinta y un itemes. Se utilizaron las pruebas estadisticas no parametricas Kruskal Wallis y Chi-cuadrado (test de homogeneidad) para establecer las diferencias entre las actitudes de los sujetos con relacion al uso de las herramientas computadorizadas en las clases de ciencias. Los hallazgos evidenciaron que son positivas y muy parecidas las actitudes de los candidatos a maestros y maestros en servicio hacia el uso de las herramientas computadorizadas. No hubo diferencias entre los candidatos y maestros en servicio en terminos de las actitudes de confianza y empatia hacia el uso de las herramientas computadorizadas en las clases de ciencias. En aspectos como el uso del banco de datos bibliografico Eric y el uso de las herramientas computadorizadas en actividades educativas como explorar conceptos, conceptuar, aplicar lo aprendido y hacer asignaciones hubo diferencias estadisticamente significativas entre los candidatos y los maestros en servicio. Al comparar las frecuencias observadas con las esperadas hubo mas maestros en servicio y menos candidatos que indicaron usar el anterior banco de datos y las herramientas computadorizadas en las mencionadas actividades educativas.

Bayuelo, Ezequiel

77

Dyads of father and son suicide separated by time and circumstances.  

PubMed

We encountered 2 dyadic suicides among fathers and sons. In the first dyad, the father was a 64-year-old man with complications of heart surgery. He committed suicide with a shotgun. The decedent's son was a 38-year-old man. Five years after his father's death, the son had an argument with his wife. That morning, he drove to the house where his father had lived and inflicted a handgun wound to his head. In the second dyad, the son was a 22-year-old man whose girlfriend left him. He inflicted a shotgun injury to the head. His blood alcohol level was 294 mg/dL. The father of this decedent was a 43-year-old man who 1 year later was despondent after a fight with his girlfriend. He was found dead at home with a single handgun wound to the chest. His blood alcohol level was 173 mg/dL. All 4 suicides appear to have been premeditated and all 4 men used guns. Suicide in a family tends to cause depression and complicate bereavement in survivors more than other types of death. Copycat suicide is well-documented in high-profile cases. The effect of father-son relationships is likely closer and more influential than celebrity suicides. PMID:19935393

Carson, Henry J

2010-03-01

78

NECESIDADES DE HOY: MEMORIA HISTÓRICA, PATRIMONIO, COSTUMBRES Y\\/O TRADICIONES E IDENTIDAD CULTURAL EN LA FAMILIA  

Microsoft Academic Search

La familia como agente educativo, tiene una alta responsabilidad en formar adecuadamente a sus hijos sobre la base de la transmisión de normas y valores socialmente valiosos; es por ello, que en estos momentos la dimensión de esta temática cobra una mayor fuerza y se hace necesario conocer las problemáticas familiares y a partir de ese conocimiento elevar la preparación

Náyade Caridad Reyes Palau

2011-01-01

79

76 FR 44912 - Callaway and Son Drum Service Superfund Site; Lake Alfred, Polk County, FL; Notice of Settlement  

Federal Register 2010, 2011, 2012, 2013

...EPA-RO4-SFUND-2011-3752, FRL-9444-5] Callaway and Son Drum Service Superfund Site...of past response costs concerning the Callaway and son Drum Service Superfund Site located...Painter. Submit your comments by Site name Callaway and Son Drum Service Superfund Site...

2011-07-27

80

Sons, daughters or both?: an analysis of family sex composition preferences in the Philippines.  

PubMed

An analysis of family sex composition preferences as well as the relationship between actual family sex composition and desire for no additional children among a national sample of Filipino women is presented. An emphasis on balance or son-daughter equivalence is strongest in Metropolitan Manila. Son preference is highest in rural Mindanao and Sulu, primarily due to the concentration of Muslims in this section of the country and secondarily to its pioneer environment and the presumed utility of sons in such a milieu. The importance of eliciting sex composition preferences from both husbands and wives as well as distinguishing the "striking for a balance" from sex-linked preferences in future research is discussed. PMID:1112434

Stinner, W F

1975-02-01

81

DO SONS OR DAUGHTERS GIVE MORE MONEY TO PARENTS IN URBAN CHINA?*  

PubMed Central

The patriarchal structure of the traditional Chinese family suggests that sons, more than daughters, provide financial support to elderly parents. The norm of receiving support in old age primarily from sons, however, may have been undermined by dramatic demographic, economic, and cultural changes occurring over the last several decades in China, especially in urban areas. We examine gender differences in adult children’s financial support to parents using a recent dataset (“Study of Family Life in Urban China") collected in 1999 (N = 1,801). The results show that married daughters, especially those living with parents, provide more financial support to parents than married sons do. This significant gender difference can be primarily explained by daughters’ resources, such as education and income.

Xie, Yu; Zhu, Haiyan

2009-01-01

82

Having a Son or Daughter with Down Syndrome: Perspectives from Mothers and Fathers  

PubMed Central

This study asks parents who have children with Down syndrome how they feel about their lives so that such information could be shared with expectant couples during prenatal counseling sessions. A valid and reliable survey instrument was mailed to 4,924 households on the mailing lists of six non-profit Down syndrome organizations. Of the 2,044 respondents, 99% reported that they love their son or daughter; 97% were proud of them; 79% felt their outlook on life was more positive because of them; 5% felt embarrassed by them; and 4% regretted having them. The parents report that 95% of their sons or daughters without Down syndrome have good relationships with their siblings with Down syndrome. The overwhelming majority of parents surveyed report that they are happy with their decision to have their child with Down syndrome and indicate that their sons and daughters are great sources of love and pride.

Skotko, Brian G.; Levine, Susan P.; Goldstein, Richard

2012-01-01

83

About parametric representations of SO(n) matrices and plane rotations  

NASA Astrophysics Data System (ADS)

Since a long time the group SO(n) is of a great interest in physics (space relativity theory, quantum electrodynamics, theory of elementary particles) and mechanics because of its numerous applications to problems of monitoring of unknown nonlinear systems. The present paper treats the basic theory of this group and it is shown that any transformation of the group SO(n) may be presented as a product of plane transformations in clear analytical forms, appropriate for practical applications. The approach presented here is inspired by the close analogy of plane rotations with the vector-parameterization of the SO(3) group.

Mladenova, C. D.; Mladenov, I. M.

2012-10-01

84

George (1830-72) and his son James Hogarth (1863-1941) Pringle: unsung surgical pioneers.  

PubMed

The achievements of the Hogarth Pringles, father and son, represent a remarkable story of surgical innovation; remarkable not only for the range and significance of their contributions but also because neither of them has been given appropriate recognition for their pioneering work. George Hogarth Pringle introduced antiseptic surgery to Australia. His son James performed the first autologous vein graft in Britain and the first excision with en bloc nodal dissection for malignant melanoma, both of which procedures were successful. He was also one of the earliest exponents of hindquarter amputation, was a national authority on fracture management and an early supporter of women in medicine. PMID:18653835

Macintyre, Iain

2008-08-01

85

“Guided by faith and matchless Fortitude”: Milton’s Portrayal of the Son in Paradise Lost  

Microsoft Academic Search

Though he was Secretary of Language during Oliver Cromwell’s Puritan rule of England, John Milton never referenced the authoritarian figure in his greater works. Through examinations of texts discussing Paradise Lost in reference to seventeenth century British history, this essay seeks to show the placement of Cromwell as the Son. Although several dominant figures in the field of Milton studies

Ryan McCarty

2003-01-01

86

HER SON, THE ATOMIC SCIENTIST: MIRRA BIRENS, YULI KHARITON, AND MAX EITINGON'S SERVICES FOR THE SOVIETS  

Microsoft Academic Search

New evidence sheds fresh light on the decades-long controversy whether Dr Max Eitingon, a pioneer of psychoanalysis in Europe and Palestine, collaborated with Soviet intelligence. This paper focuses on the hitherto overlooked figure and connections of his wife Mirra, and especially the impact of her son Yuli Khariton's career as a top nuclear physicist in the USSR's scientific and defence

Isabella Ginor; Gideon Remez

2012-01-01

87

The fitness of dispersing spotted hyaena sons is influenced by maternal social status  

Microsoft Academic Search

Life history theory predicts that mothers should provide their offspring with a privileged upbringing if this enhances their offspring's and their own fitness. In many mammals, high-ranking mothers provide their offspring with a privileged upbringing. Whether dispersing sons gain fitness benefits during adulthood from such privileges (a 'silver spoon' effect) has rarely been examined. In this paper, we show that

Oliver P. Höner; Bettina Wachter; Heribert Hofer; Kerstin Wilhelm; Dagmar Thierer; Fritz Trillmich; Terry Burke; Marion L. East

2010-01-01

88

Perturbative computation of glueball superpotentials for SO(N) and USp(N)  

NASA Astrophysics Data System (ADS)

We use the superspace method of hep-th/0211017 to prove the matrix model conjecture for N = 1 USp(N) and SO(N) gauge theories in four dimensions. We derive the prescription to relate the matrix model to the field theory computations. We perform an explicit calculation of glueball superpotentials. The result is consistent with field theory expectations.

Ita, Harald; Nieder, Harald; Oz, Yaron

2003-01-01

89

Mother's Education and Effect of Son Preference on Fertility in Matlab, Bangladesh.  

ERIC Educational Resources Information Center

|Follows earlier research that hypothesized and substantiated that, in a society with strong son preference, its effect on fertility would be conditional on the level of contraceptive use. Finds that, if a preference for smaller family size increases, then sex preference will have minimal effect on fertility. (LZ)|

Chowdhury, Mridul, K.

1994-01-01

90

The Role of Mother-Son Incest in The Pathogenesis of Narcissistic Personality Disorder  

Microsoft Academic Search

Psychoanalytic case material is presented to illustrate how mother-son incest may be involved in the pathogenesis of a particular subtype of narcissistic personality disorder. Male patients with this disorder have a grandiose view of themselves as entitled to occupy a special position with others, combined with a paranoid tendency to anticipate imminent betrayal. The enormous guilt related to perceived oedipal

Glen O. Gabbard; Stuart W. Twemlow

1994-01-01

91

Perturbative computation of glueball superpotentials for SO(N) and USp(N)  

Microsoft Academic Search

We use the superspace method of hep-th\\/0211017 to prove the matrix model conjecture for N = 1 USp(N) and SO(N) gauge theories in four dimensions. We derive the prescription to relate the matrix model to the field theory computations. We perform an explicit calculation of glueball superpotentials. The result is consistent with field theory expectations.

Harald Ita; Harald Nieder; Yaron Oz

2003-01-01

92

The Influence of Parental Bonding on Emotional Distress in Caregiving Sons for a Parent With Dementia  

Microsoft Academic Search

Purpose: The purpose of this study was to investigate the influence of childhood parental bonding on emotional dis- tress experienced by primary caregiving sons for a parent with dementia. Design and Methods: Data from the 40 participants were obtained using the Parental Bonding In- ventory (PBI), Brief Symptom Inventory (BSI), and Care- giver Survey Questionnaire (CSQ). A multivariate analy- sis

Andrew P. Daire

2002-01-01

93

Affectionate communication between fathers and young adult sons: Individual?and relational?level correlates  

Microsoft Academic Search

Men's relationships with their fathers may be among the most important and influential same?sex relationships they form in the life course. Although several studies have examined issues such as aggressiveness, conflict, and dysfunction between fathers and adult sons, far less attention has been paid to more positive communication behaviors in such relationships. The present study examines the individual? and relational?level

Mark T. Morman; Kory Floyd

1999-01-01

94

The Gothic Colonial: A Comparison of Wuthering Heights and Native Son  

Microsoft Academic Search

This project is a comparison of Emily Bronte's Wuthering Heights (1847) and Richard Wright's Native Son (1940). The discussion begins with how these novels should be considered within the field of postcolonial studies, although they do not fit the traditional definition of its branches of postcolonialism and imperialism. An ideological leaning can be seen in a social hierarchy that casts

Arwa Mohammad Malaibari

2008-01-01

95

Terascale Physics Opportunities at a High Statistics, High Energy Neutrino Scattering Experiment:. NuSOnG  

Microsoft Academic Search

This paper presents the physics case for a new high-energy, ultra-high statistics neutrino scattering experiment, NuSOnG (Neutrino Scattering on Glass). This experiment uses a Tevatron-based neutrino beam to obtain over an order of magnitude higher statistics than presently available for the purely weak processes numu + e- --> numu + e- and numu + e- --> nue + mu-. A

T. Adams; P. Batra; L. Bugel; L. Camilleri; J. M. Conrad; A. de Gouvêa; P. H. Fisher; J. A. Formaggio; J. Jenkins; G. Karagiorgi; T. R. Kobilarcik; S. Kopp; G. Kyle; W. A. Loinaz; D. A. Mason; R. Milner; R. Moore; J. G. Morfín; M. Nakamura; D. Naples; P. Nienaber; F. I. Olness; J. F. Owens; S. F. Pate; A. Pronin; W. G. Seligman; M. H. Shaevitz; H. Schellman; I. Schienbein; M. J. Syphers; T. M. P. Tait; T. Takeuchi; C. Y. Tan; R. G. van de Water; R. K. Yamamoto; J. Y. Yu

2009-01-01

96

Fathers Are Important People: A Study of Father-Son Sexual Communication  

ERIC Educational Resources Information Center

|The purpose of this study was to examine the perceived role of African-American fathers in educating their sons about sex and HIV prevention. Given that some studies have shown a relationship between parent-adolescent sexual communication and adolescent sexual behavior, and the disproportionately high rates of teen pregnancy and HIV (and other…

DiIorio, Colleen; Lehr, Sally; Wasserman, Jill L.; Eichler, Michelle; Cherry, Chauncey; Denzmore, Pamela

2006-01-01

97

Intergenerational transmission of reciprocal role procedures, personality integrity and self-esteem in fathers and sons  

Microsoft Academic Search

Substantial past research has focused on the importance of the relationship and attachment styles of and between mothers and children. However, research into the domain of reciprocal roles, personality integrity and self-esteem that addresses in particular the relationship between fathers and sons, remains extremely sparse. This study was designed to assess the intergenerational transmission of reciprocal role procedures (RRPs), personality

Jessica Russell-Carroll; Anne Tracey

2011-01-01

98

Stress state in the Cuu Long and Nam Con Son basins, offshore Vietnam  

Microsoft Academic Search

The results presented in this paper are the first published estimates of the complete stress tensor in the Cuu Long and Nam Con Son basins, offshore Vietnam. We analysed in situ stress and pore pressure fields in the sedimentary formations using data from petroleum exploration and production wells to evaluate the stress state in these basins. The data were obtained

Nguyen Thi Thanh Binh; Tomochika Tokunaga; Neil R. Goulty; Hoang Phuoc Son; Mai Van Binh

2011-01-01

99

Structure, stratigraphy and petroleum geology of the south east Nam Con Son Basin, offshore Vietnam  

Microsoft Academic Search

Recent exploration of the south east Nam Con Son Basin, offshore Vietnam, by BP in alliance with Statoil has involved acquisition of new seismic and well data. These new data have allowed re-evaluation of the tectono-stratigraphic development and petroleum geology, and have provided additional constraints on the regional tectonic evolution. The offshore Vietnamese basins have evolved in response to the

A. J. Fraser; S. J. Matthews; S. Lowe; S. P. Todd; Simon; F. J. P. Peel

1996-01-01

100

Bigger at the Movies: Sangre Negra and the Cinematic Projection of Native Son  

Microsoft Academic Search

Entitled Sangre Negra, Richard Wright’s 1951 film adaptation of his novel Native Son is a coproduction with Argentine studio Sono Film under the direction of French director Pierre Chenal. Not only was the project undertaken during Wright’s extended period of exile, it also served as a means of projecting Bigger Thomas to a space that exceeds the local confines of

Thy Phu

2010-01-01

101

Bigger at the Movies: Sangre Negra and the Cinematic Projection of Native Son  

Microsoft Academic Search

: Entitled Sangre Negra, Richard Wright’s 1951 film adaptation of his novel Native Son is a coproduction with Argentine studio Sono Film under the direction of French director Pierre Chenal. Not only was the project undertaken during Wright’s extended period of exile, it also served as a means of projecting Bigger Thomas to a space that exceeds the local confines

Thy Phu

2010-01-01

102

Boys Will Be Men: Raising Our Sons for Courage, Caring and Community.  

ERIC Educational Resources Information Center

|This book offers practical advice on how to rear sons to become the kind of men needed for a multicultural and democratic society. Suggestions are given for dealing with racism, homophobia, pornography, drugs, social class problems, consumerism, sex, and violence. The chapters are: (1) "Male Socialization"; (2) "The Big Picture"; (3) "Mothering,…

Kivel, Paul

103

Differential consequences provided by mothers and fathers for their sons and daughters  

Microsoft Academic Search

Used home observation data to describe variations in parents' responding during interactions as a function of sex of their 5-12 yr old children. Results partially support the hypothesis that parents would be more responsive to like-sex children, in that fathers responded more positively to sons than to daughters. The hypothesis that mothers would show more positive responses to their children

Gayla Margolin; Gerald R. Patterson

1975-01-01

104

Desire for Children in Turkmenistan and AzerbaijanSon Preference and Perceived Instrumentality for Value Satisfaction  

Microsoft Academic Search

The purpose of this study was to investigate son preference with respect to desired number of children and perceived instrumentality of children in relation to a number of values. The sample included respondents of Turkic origin residing in Ashgabat and Baku, the respective capitals of Turkmenistan and Azerbaijan. The results revealed that Turkmens desired a greater number of children and

Nuran Hortaçsu; Ovezdurdi B. Muhammetberdiev

2001-01-01

105

Marriage Form and Son Preference in Rural China: An Investigation in Three Counties  

ERIC Educational Resources Information Center

|Using data from two surveys in three counties among which the prevalence of uxorilocal marriage varies greatly, this paper analyzes effects of marriage form, as well as individual, family, and social factors on son preference in the context of strict birth control in rural China. It is shown that, under the Chinese patrilineal joint family…

Jin, Xiaoyi; Li, Shuzhuo; Feldman, Marcus W.

2007-01-01

106

The desire for a son is the father of many daughters  

Microsoft Academic Search

This paper investigates the impact of preferences for male offspring to female offspring upon the sex ratio of the population. Asymmetric procreation behaviour of this kind is modelled by assuming that a female's procreation ceases only after at least one son or n daughters are born. It is shown that such asymmetric procreation behaviour has no effect on the sex

Christian Seidl

1995-01-01

107

Peut-on parler d'une gestion globale de son capital santé ?  

Microsoft Academic Search

[fre] Peut-on parler d'une gestion globale de son capital santé ? . En première analyse, les comportements des individus par rapport à leur santé peuvent sembler assez cohérents : les consommateurs d'alcool ou de tabac surveillent moins leur poids ou leur alimentation, ont moins recours aux soins préventifs, achètent moins de pharmacie sans ordonnance. Il est alors tentant de supposer

Pascale Genier; Stéphane Jacobzone

1998-01-01

108

Son Preference, Sex Selection and Economic Development: Theory and Evidence from South Korea  

Microsoft Academic Search

Motivated by high and rising sex ratios in countries such as India and China, we formulate a theoretical framework for analyzing the impact of economic development on parental sex choice when sons are culturally prized and children provide old age support. Two key assumptions drive our model. First, the cultural valuation of children vary not only with gender but also

Lena Edlund; Chulhee Lee

2009-01-01

109

Fathers and sons: A study of ego identity across two generations  

Microsoft Academic Search

This study was designed to compare the relative frequencies of the various ego identity statuses across two generations and to determine the nature of the relationship between the identity statuses of fathers and their sons. Male college students and their fathers were given Marcia 's semistructured ego identity status interview. Generational comparisons revealed that the fathers were significantly more likely

Caroline K. Waterman; Alan S. Waterman

1975-01-01

110

Between Dad and Son: Initiating, Delivering, and Assimilating Bad Cancer News  

Microsoft Academic Search

The opening moments of a phone call reveal how a father informs his son, for the 1st time, that his mom's tumor is malignant. An extended phone opening reveals how delaying talk about the mom's condition allows for important interactional work: Displaying resistance to announce the bad news directly, projecting and anticipat- ing the valence of forthcoming news prior to

Wayne A. Beach

2002-01-01

111

Offspring sex ratios in tree swallows: females in better condition produce more sons  

Microsoft Academic Search

Organisms are expected to adjust the sex ratio of their offspring in relation to the relative fitness benefits of sons and daughters. We used a molecular sexing technique that amplifies an intron of the CHD1 gene in birds to examine the sex ratio at egg-laying in socially mono- gamous tree swallows ( Tachycineta bicolor ). We examined all individuals in

Linda A. Whittingham; Peter O. Dunn

2000-01-01

112

Parents' perceptions of their adolescent sons' recovery in a therapeutic community for addicted clients.  

PubMed

A qualitative phenomenological study of parents of addicted male adolescents who were residents of a Jewish therapeutic community (TC) describes and interprets the parents' perceptions of the recovery process. Deep, semistructured interviews with 14 parents provided the data. The parents' perceptions were clustered into three main themes of meaning: (a) the process of change, (b) the experiences of family members in the course of the son's recovery process, and (c) the parents' perception of the treatment at Retorno. According to the parents, the admission of their sons into the TC brought notable relief to the family life, which enabled the whole family to begin a recovery process. The findings support the positive criminology perspective that emphasizes the disintegration-integration vector as significant in the recovery process. Recommendations for intervention planning are provided. PMID:22992657

Chen, Gila; Elisha, Ety; Timor, Uri; Ronel, Natti

2012-09-19

113

Evolution of the local environment of cerium and neodymium during simplified SON68 glass alteration  

Microsoft Academic Search

The evolution of the sites occupied by cerium and neodymium (coordination numbers and Ce, Nd–O distances) during alteration of simplified SON68 glass specimens was determined by LIII-edge XAS. Cerium and neodymium are situated in a silicate environment in the glass, surrounded by eight oxygen atoms at an average distance of 2.44 and 2.48Å, respectively. These two rare earth elements exhibit

Patrick Jollivet; Christophe Lopez; Christophe Den Auwer; Eric Simoni

2005-01-01

114

Son preference and sex-selective abortion in China: informing policy options  

Microsoft Academic Search

Objectives  There is growing evidence in China that son preference is on the decline, but the sex ratio at birth is still the highest\\u000a in the world at around 120 male births to 100 females. The aim of the study was to explore attitudes towards gender preference\\u000a among people of reproductive age, to determine the reasons why the sex ratio is

Chi Zhou; Xiao Lei Wang; Xu Dong Zhou; Therese Hesketh

115

Erotic Motherhood and the Ideal Son: Mythology as Psychotherapy in the Krishna-Bhakti Tradition  

Microsoft Academic Search

Through the lenses of D.W. Winnicott’s theory of development and Sudhir Kakar’s theory that the flux between fusion with and\\u000a separation from Krishna in the Krishna-bhakti tradition is a reflection of the early childhood relational dynamics of mother and son, I will argue that the mythology of\\u000a Krishna found in the Bhagavata Purana Book X implements the traditional Hindu notion

Andrea R. Jain

2010-01-01

116

Son preference and the one child policy in China: 1979–1988  

Microsoft Academic Search

Using data from the Two-Per-Thousand National Fertility Survey, this research analyzes how son preference, a deep-rooted cultural norm for more than two thousand years, affects compliance with China's one child population policy for women at risk during the period of 1979 to 1988. Four events after the first live birth are used to evaluate compliance with the policy: (1) certificate

Jiali Li; Rosemary Santana Cooney

1993-01-01

117

String theory duals for mass-deformed SO(N) and USp(2N)  

Microsoft Academic Search

We generalize the results of Polchinski and Strassler regarding the N=1 preserving mass deformation of N=4SU(N) supersymmetric Yang-Mills (SYM) theories and its string theory dual to SO(N) and USp(2N) gauge groups. The string theory duals involve 5-branes wrapped on RP². In order to match with the field theory classification of vacua, the 3-brane charge carried by such 5-branes must be

Ofer Aharony; Arvind Rajaraman

2000-01-01

118

Familial Occurrence of Atrioventricular Nodal Reentrant Tachycardia in a Mother and Her Son  

PubMed Central

Atrioventricular nodal reentrant tachycardia (AVNRT), caused by a reentry circuit involving fast and slow atrioventricular nodal pathways, is one of the most common types of paroxysmal supraventricular tachycardias. While familial Wolff-Parkinson-White syndrome has been well recognized, familial AVNRT has been rarely reported. We report a familial occurrence of AVNRT in a mother and her son, who were symptomatic and successfully treated with radiofrequency catheter ablation of slow pathway.

Kwak, Jae-Jin; Choe, Hyunmin; Kwon, Sung Uk; Doh, Joon Hyung; Lee, Sung Yun; Lee, Won Ro

2012-01-01

119

Familial occurrence of atrioventricular nodal reentrant tachycardia in a mother and her son.  

PubMed

Atrioventricular nodal reentrant tachycardia (AVNRT), caused by a reentry circuit involving fast and slow atrioventricular nodal pathways, is one of the most common types of paroxysmal supraventricular tachycardias. While familial Wolff-Parkinson-White syndrome has been well recognized, familial AVNRT has been rarely reported. We report a familial occurrence of AVNRT in a mother and her son, who were symptomatic and successfully treated with radiofrequency catheter ablation of slow pathway. PMID:23170103

Namgung, June; Kwak, Jae-Jin; Choe, Hyunmin; Kwon, Sung Uk; Doh, Joon Hyung; Lee, Sung Yun; Lee, Won Ro

2012-10-31

120

Boys of Few Words: Raising Our Sons to Communicate and Connect  

ERIC Educational Resources Information Center

|When parents feel separated from their sons by a curtain of silence or a wall of resistance, they are right to be concerned. Boys of few words-the ones who limit their expression to a timid shrug or an indifferent grunt-need help. Whether the problem is rooted in "nature" or "nurture," boys who grow up unable to talk about their thoughts and…

Cox, Adam J.

2006-01-01

121

Confession and Forgiveness: A Pastoral Reading of A Father’s Son by Lionel Dahmer  

Microsoft Academic Search

This paper offers a pastoral reading of the memoir written by Lionel Dahmer, the father of the serial killer Jeffrey Dahmer.\\u000a I suggest that the literary genre of the memoir provided Lionel with a means of confession that enabled him to process three\\u000a particular experiences related to his son—namely, grief, shame, and regret. I also suggest that the writing of

Nathan Carlin

2011-01-01

122

Confianza, coacción y autoridad: un ensayo sobre el papel de la imitación en las relaciones laborales  

Microsoft Academic Search

Cualquier ensayo, sea este en el tema que sea, tiene ciertas limitaciones. En principio por especulativo, esta clase de monografías literarias no posee una estructura empírica que respalde los contenidos teóricos del mismo. Sin embargo, en muchas ocasiones los ensayos o las teorías son necesarios para interpretar y comprender contextualmente el mundo que nos rodea. Con estas aclaraciones en mente,

Maximiliano Korstanje

2007-01-01

123

Nutrición deportiva en la infancia: Cumplimiento de las demandas metabólicas del crecimiento y el ejercicio  

Microsoft Academic Search

ExtractoLos objetivos fundamentales de la infancia son el crecimiento y la maduración óptimos. Estos procesos relacionados con el desarrollo exigen un balance energético y nitrogenado positivo. Aunque la actividad física regular puede intensificar el desarrollo en la infancia, un entrenamiento físico extenuante puede reducir las reservas de energía y nitrógeno del organismo que, entonces, deberán reemplazarse a través de la

C. L. Zanker

2006-01-01

124

Will I be to my son as my father was to me? Narrative of a father with a premature baby  

Microsoft Academic Search

This paper is the narrative of a first-time father with a son born seven weeks early by Caesarean section. Against the anxiety and trauma of his infant's birth and his wife's illness, another inner darker drama is being relived. Michael shows all the wounds of a battered child. He asks two awesome questions - Will I be to my son

Norma Tracey; Peter Blake; Beulah Warren; Helen Hardy; Sylvia Enfield; Pam Shein

1996-01-01

125

Gender differences among low income women in their intent to vaccinate their sons and daughters against human papillomavirus infection  

PubMed Central

Study Objective The HPV vaccine was approved for use in males in 2009. The purpose of our study was to examine current intentions to vaccinate sons and daughters among low income women. Design A survey was administered to 322 mothers with a son or daughter 9–26 years of age to examine gender differences in intent to vaccinate their children. Setting Five public reproductive health clinics in southeast Texas, between August, 2010 and May, 2011. Participants The study population consisted of 322 women with ?1 child 9–26 years of age. Main Outcome Measures Knowledge of HPV vaccine, intention to have son or daughter receive the HPV vaccine, and reasons for not vaccinating son or daughter. Results Women with only a daughter were more willing than those with a son to vaccinate their child (71% vs. 44%, P<.001). A similar scenario was observed for mothers of both daughters and sons (67% vs. 39%, P<.001). Mothers of sons as compared to daughters were less likely to consider their child at risk of HPV (27% vs. 12%, P=.028) while those with daughters were more concerned about side effects (54% vs. 33%, P=.008). Conclusion Educational interventions are needed to address the importance to mothers of vaccinating both their sons and daughters against HPV.

Berenson, Abbey B.; Rahman, Mahbubur

2012-01-01

126

Designing Messages to Motivate Parents to Get Their Preteenage Sons Vaccinated Against Human Papillomavirus  

PubMed Central

CONTEXT Human papillomavirus (HPV) vaccine, licensed for use in 9–26-year-olds, is most effective when given before sexual activity begins. HPV causes genital warts, is associated with several cancers and disproportionately affects racial and ethnic minorities. Parents are typically unaware of male HPV vaccine; messages that might motivate them to get their preteenage sons vaccinated are unexplored. METHODS Messages promoting vaccination of preteenage boys were designed and tested in 2009 and 2010. Five focus groups were conducted with 29 black parents of 11–12-year-old boys, recruited through three churches and a middle school in North Carolina, and a racially diverse sample of 100 parents of 9–13-year-old boys in a university-based adolescent health clinic was interviewed. A constant comparison method was used to code transcripts and interpret themes. Chi-square and t tests or analyses of variance were used to assess differences in quantitative data. RESULTS Focus group parents knew little about HPV in males. Although concerned about safety and cost, parents supported vaccination for their sons. They wanted to see racial diversity and both parents in motivational materials. In interviews, 89% of parents reported never having heard of male HPV vaccine. The largest proportion said that a message stressing the prevalence and possible consequences of HPV infection was the most motivating (32%); the design favored by the largest proportion (43%) showed two parents. CONCLUSIONS Messages that may most motivate parents to get preteenage boys vaccinated against HPV focus on infection risk and include images of parents with their sons.

Cates, Joan R.; Ortiz, Rebecca; Shafer, Autumn; Romocki, LaHoma Smith; Coyne-Beasley, Tamera

2012-01-01

127

Complicated grief and manic comorbidity in the aftermath of the loss of a son.  

PubMed

Based on the recommendations of the sub-workgroup on trauma and dissociative disorders, the American Psychiatric Association (APA) removed the "bereavement exclusion" from the criteria for major depression in DSM-5. In addition, proposed DSM-5 research criteria for persistent complex bereavement disorder (PCBD) were included in the new manual in a section for conditions and criteria needing further research. We describe a case that warranted such a diagnosis. The patient was a 52- year-old woman who was admitted to the inpatient unit of our clinic on the birthday of her son who had died 18 months earlier. She was diagnosed with a manic episode with psychotic symptoms according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR) criteria and was treated accordingly. Three months after discharge, she made a suicide attempt and was admitted and re-assessed. During this admission, she completed the Inventory of Complicated Grief (ICG), the Mood-Spectrum Rating Scale (MOODS-SR), and the Trauma and Loss Spectrum questionnaire (TALS-SR). She endorsed symptoms of intense yearning for her son, feelings of shock and disbelief, anger and bitterness related to his death, estrangement from others, auditory, tactile and visual hallucinations of the deceased, and intense emotional reactivity to memories of her son. These symptoms were sufficiently prolonged and severe to meet criteria for complicated grief. While complicated grief appeared to be the primary diagnosis for this patient, when she was diagnosed using only DSMIV-TR criteria, her treatment failed to address herprimary problem. This case draws attention to the occurrence of manic-like symptoms as well as depression-like manifestations following bereavement and highlights the importance of including the syndrome of complicated grief in the diagnostic nomenclature. (Journal of Psychiatric Practice2013;19:419-428). PMID:24042249

Carmassi, Claudia; Shear, M Katherine; Socci, Chiara; Corsi, Martina; Dell'osso, Liliana; First, Michael B

2013-09-01

128

Dual description for SUSY SO(N) gauge theory with a symmetric tensor  

NASA Astrophysics Data System (ADS)

We consider N=1 supersymmetric SO(N) gauge theory with a symmetric traceless tensor. This theory saturates 't Hooft matching conditions at the origin of the moduli space. This naively suggests a confining phase, but Brodie, Cho, and Intriligator have conjectured that the origin of the moduli space is in a Non-Abelian Coulomb phase. We construct a dual description by the deconfinement method, and also show that the theory indeed has an infrared fixed point for certain values of N. This result supports their argument.

Maru, Nobuhito

1999-08-01

129

Non-Abelian vortices in SO(N) and USp(N) gauge theories  

NASA Astrophysics Data System (ADS)

Non-Abelian BPS vortices in SO(N) × U(1) and USp(2N) × U(1) gauge theories are constructed in maximally color-flavor locked vacua. We study in detail their moduli and transformation properties under the exact symmetry of the system. Our results generalize non-trivially those found earlier in supersymmetric U(N) gauge theories. The structure of the moduli spaces turns out in fact to be considerably richer here than what was found in the U(N) theories. We find that vortices are generally of the semi-local type, with power-like tails of profile functions.

Eto, Minoru; Fujimori, Toshiaki; Bjarke Gudnason, Sven; Konishi, Kenichi; Nagashima, Takayuki; Nitta, Muneto; Ohashi, Keisuke; Vinci, Walter

2009-06-01

130

Guillaume rondelet (1507-1566): Cardinal physician and anatomist who dissected his own son.  

PubMed

The 16th century French anatomist Guillaume Rondelet will be remembered as a great naturalist and a founder of ichthyology. Little known to most is that Rondelet was a proficient anatomist and contemporary to Vesalius and in fact, both studied anatomy under Johannes Guinter. Even less known is that he established the first dissecting theatre at Montpellier and it was here that he would dissect his infant son in an attempt to identify the cause of death. In this article, we review the life and contributions to anatomy of Rondelet. Clin. Anat., 2013. © 2013 Wiley Periodicals, Inc. PMID:23553947

Mian, Asma; Watanabe, Koichi; Shoja, Mohammadali M; Loukas, Marios; Tubbs, R Shane

2013-04-01

131

When a son steals money from his mother: courtroom perceptions of elder financial exploitation.  

PubMed

The perception of elder financial exploitation was investigated using community members (N = 104) and undergraduates (N = 143). Participants read an exploitation trial summary; an 85-year-old victim accused her son of stealing her money. Primary results indicated that alleged victims described as healthy rendered more guilty verdicts than those described as having a cognitive deficit; pro-victim judgments were higher for women than men; and younger and older community members' rendered more guilty verdicts than middle-aged mock jurors. The results are discussed in terms of the factors that impact the perception of exploitation in court. PMID:23473296

Golding, Jonathan M; Hodell, Emily C; Dunlap, Emily E; Wasarhaley, Nesa E; Keller, Peggy S

2013-01-01

132

The practices of mothering in caregiving an adult son with AIDS.  

PubMed

One invisible and silent phenomenon associated with the acquired immune deficiency syndrome (AIDS) epidemic is the return of mothers to care for their adult sons who are dying of the disease. This article presents an emergent fit of data from an interpretative study with 14 such mothers into Leonard's practices of mothering framework. Conceptualizing mothering as a practice rather than a technical skill provides a context for understanding nurture and care. The mothers' stories reveal moral content of mothering that is centrally important to cultural life, as well as implications for nursing practice. PMID:10711804

Nelms, T P

2000-03-01

133

Fathers’ intentions to accept human papillomavirus vaccination for sons and daughters: exploratory findings from rural Honduras  

Microsoft Academic Search

Objectives  Little is known about fathers’ attitudes toward human papillomavirus (HPV) vaccination in low-resource settings. We sought\\u000a to determine the awareness of HPV vaccination among Honduran fathers, and to assess their intention to accept HPV vaccination\\u000a for their sons and daughters.\\u000a \\u000a \\u000a \\u000a \\u000a Methods  We conducted 100 structured interviews of fathers recruited from medical and business settings between May 2007 and June 2008.\\u000a After

Rebecca B. PerkinsPooja; Pooja K. Mehta; Sarah M. Langrish

134

Las Vegas Strip History  

NSDL National Science Digital Library

Created by amateur cultural historian Deanna DeMatteo, this site offers "the most detailed history of the Las Vegas Strip on the Internet today," showing in words and graphics the evolution of the properties on the Strip from its beginning to the present. Drawing on materials provided by publications, professional Las Vegas historians, and the Nevada State Museum and Historical Society, DeMatteo offers a detailed, noncommercial history with plenty of photographs (many archival) of the strip from the first night club in 1930 named Pair O Dice to the first true casino hotel, El Rancho with 63 rooms in 1941, to Hilton's giant Paris Las Vegas opening earlier this Fall with 2,914 rooms. There is also a special topics section, covering people significant in the strip's development, such as Warren "Doc" Bayley and Howard Hughes. Launched in August, the Website is continually updated with new material. Note: to reach table of contents, click on the photograph at end of the homepage.

Dematteo, Deanna.

135

Sons learn songs from their social fathers in a cooperatively breeding bird.  

PubMed

Song learning is hypothesized to allow social adaptation to a local song neighbourhood. Maintaining social associations is particularly important in cooperative breeders, yet vocal learning in such species has only been assessed in systems where social association was correlated with relatedness. Thus, benefits of vocal learning as a means of maintaining social associations could not be disentangled from benefits of kin recognition. We assessed genetic and cultural contributions to song in a species where social association was not strongly correlated with kinship: the cooperatively breeding, reproductively promiscuous splendid fairy-wren (Malurus splendens). We found that song characters of socially associated father-son pairs were more strongly correlated (and thus songs were more similar) than songs of father-son pairs with a genetic, but no social, association (i.e. cuckolding fathers). Song transmission was, therefore, vertical and cultural, with minimal signatures of kinship. Additionally, song characters were not correlated with several phenotypic indicators of male quality, supporting the idea that there may be a tradeoff between accurate copying of tutors and quality signalling via maximizing song performance, particularly when social and genetic relationships are decoupled. Our results lend support to the hypothesis that song learning facilitates the maintenance of social associations by permitting unrelated individuals to acquire similar signal phenotypes. PMID:22593105

Greig, Emma I; Taft, Benjamin N; Pruett-Jones, Stephen

2012-05-16

136

Sons learn songs from their social fathers in a cooperatively breeding bird  

PubMed Central

Song learning is hypothesized to allow social adaptation to a local song neighbourhood. Maintaining social associations is particularly important in cooperative breeders, yet vocal learning in such species has only been assessed in systems where social association was correlated with relatedness. Thus, benefits of vocal learning as a means of maintaining social associations could not be disentangled from benefits of kin recognition. We assessed genetic and cultural contributions to song in a species where social association was not strongly correlated with kinship: the cooperatively breeding, reproductively promiscuous splendid fairy-wren (Malurus splendens). We found that song characters of socially associated father–son pairs were more strongly correlated (and thus songs were more similar) than songs of father–son pairs with a genetic, but no social, association (i.e. cuckolding fathers). Song transmission was, therefore, vertical and cultural, with minimal signatures of kinship. Additionally, song characters were not correlated with several phenotypic indicators of male quality, supporting the idea that there may be a tradeoff between accurate copying of tutors and quality signalling via maximizing song performance, particularly when social and genetic relationships are decoupled. Our results lend support to the hypothesis that song learning facilitates the maintenance of social associations by permitting unrelated individuals to acquire similar signal phenotypes.

Greig, Emma I.; Taft, Benjamin N.; Pruett-Jones, Stephen

2012-01-01

137

Alfabetizacion de las personas que son sordas e invidentes. Hoja informativa de DB-LINK (Literacy for Persons Who Are Deaf-Blind. DB-LINK Fact Sheet).  

ERIC Educational Resources Information Center

|This fact sheet discusses the importance of literacy for individuals who are deaf-blind, the social functions of reading and writing, and conditions necessary for the development of literacy. Strategies for promoting literacy among this population are described and include: (1) invite children and adults who are deaf-blind to observe as you use…

Miles, Barbara

138

Alfabetizacion de las personas que son sordas e invidentes. Hoja informativa de DB-LINK (Literacy for Persons Who Are Deaf-Blind. DB-LINK Fact Sheet).  

ERIC Educational Resources Information Center

This fact sheet discusses the importance of literacy for individuals who are deaf-blind, the social functions of reading and writing, and conditions necessary for the development of literacy. Strategies for promoting literacy among this population are described and include: (1) invite children and adults who are deaf-blind to observe as you use…

Miles, Barbara

139

Evolution of Hang Son Doong, Vietnam: the largest cave passage in the world  

NASA Astrophysics Data System (ADS)

Hang Son Doong (HSD), or Mountain River Cave, in the Quang Binh province of Vietnam, is considered to be the largest cave passage in the world. It has continuous widths near 100 m, and heights locally exceeding 200 m in a passage >6.5 km long. HSD is one of many extremely large caves in the tropical karst of the Ke Bang massif, a massively bedded limestone surrounded by metamorphic and clastic sedimentary rocks. Why are these caves so large? Is it because they are young and rapidly formed, or instead did they form slowly in exceptionally strong bedrock? To address these questions it is necessary to examine the style and timing of speleogenesis. Hang Son Doong was formed by an allogenic river sinking along a straight subvertical fault. The cave is formed largely within a brecciated fault zone that extends up to 100 m wide. A relict karst valley indicates that speleogenesis occurred due to wholesale capture of the surface river. The cave pattern is strongly fault-controlled with few branches, consistent with a primarily allogenic rather than distributed recharge. The cave is punctuated by two collapse dolines, one of which impedes discharge today. Massive slackwater deposits perhaps 100 m thick accumulated upstream of this doline collapse, and are overlain by corroded flowstone. To place some time constraints on speleogenesis, two samples were collected for cosmogenic nuclide burial dating with 26Al and 10Be in allogenic quartz. One was from the slackwater deposits, and another from a breccia-filled tributary passage at a fault junction. Both samples postdate cave formation, and can only be used to place minimum ages on the cave. Cosmogenic nuclide concentrations are very low, leading to large uncertainties in the ages. Nonetheless, the burial ages yield some important information. Initial results indicate that the slackwater deposits formed recently, during the past 300 ky. The filled passage, on the other hand, is much older and dates to the Pliocene. Re-analyses underway will hopefully improve dating precision. Based on the breccia-filled passage, the age of HSD is at least 2 My, and possibly much older. This is consistent with ages from other large caves around the world, such as the Mammoth Cave system and large caves of the Cumberland Plateau in the southeastern United States, which date to the Pliocene and late Miocene. The very large cave passages of Hang Son Doong and the Ke Bang massif thus likely formed slowly over millions of years with only moderately large discharge, and owe their preservation primarily to rock strength.

Granger, D. E.

2011-12-01

140

Son preference, use of maternal health care, and infant mortality in rural China, 1989-2000.  

PubMed

This study assesses the effects of socio-economic conditions and the interaction between son preference and China's one-child family planning policy on the use of maternal health care services and their effects on infant mortality in rural China, using nationally representative data from the 2001 National Family Planning and Reproductive Health Survey. The results show that while the use of maternal health care services has continued to increase over time, large gaps still exist in the use of these services and in infant survival by mother's education, community income, and parity. Further improvements in the reproductive health of all women and in infant survival will require effective reduction of the obstacles to the use of maternal health care among those women in rural China who are less educated, poor, and of higher parity. PMID:17558884

Chen, Jiajian; Xie, Zhenming; Liu, Hongyan

2007-07-01

141

Case conference. A father says, "Don't tell my son the truth".  

PubMed

A pediatric oncologist, a social worker, a psychiatrist, and a rabbi comment on a case study concerning a young boy with terminal cancer, his physicians and nurses, and his parents, who refuse hospital personnel permission to disclose to their son his grim diagnosis and prognosis. Also involved is a student nurse, who feels strongly that her patient's disease should be discussed with him, and who requests a transfer when he presses her for information that she is not allowed to give. L. Ingram considers the clinical aspects of the case. M. Atkin stresses the need for communication among staff, and the importance of counseling the parents and understanding the child's point of view. J. Dare agrees that the concerns and fears of staff, parents, and patient should all be addressed. J. Neuberger speaks as the parent of a chronically ill child, as well as a member of the clergy. PMID:4057221

1985-09-01

142

From father to son: transgenerational effect of tetracycline on sperm viability  

PubMed Central

The broad-spectrum antibiotic tetracycline is used in animal production, antimicrobial therapy, and for curing arthropods infected with bacterial endosymbionts such as Wolbachia. Tetracycline inhibits mitochondrial translation, and recent evidence indicates that male reproductive traits may be particularly sensitive to this antibiotic. Here, we report the first multi-generation investigation of tetracycline's effects on ejaculate traits. In a study of the pseudoscorpion, Cordylochernes scorpioides, in which siblings were randomly assigned to control and tetracycline treatments across replicate full-sibling families, tetracycline did not affect body size in either sex, female reproduction or sperm number. However, tetracycline-treated males exhibited significantly reduced sperm viability compared to control males, and transmitted this toxic effect of tetracycline on sperm to their untreated sons but not to their F2 grandsons. These results are consistent with tetracycline-induced epigenetic changes in the male germline, and suggest the need for further investigation of transgenerational effects of tetracycline on male reproductive function.

Zeh, Jeanne A.; Bonilla, Melvin M.; Adrian, Angelica J.; Mesfin, Sophia; Zeh, David W.

2012-01-01

143

String theory duals for mass-deformed SO(N) and USp(2N)  

SciTech Connect

We generalize the results of Polchinski and Strassler regarding the N=1 preserving mass deformation of N=4SU(N) supersymmetric Yang-Mills (SYM) theories and its string theory dual to SO(N) and USp(2N) gauge groups. The string theory duals involve 5-branes wrapped on RP{sup 2}. In order to match with the field theory classification of vacua, the 3-brane charge carried by such 5-branes must be shifted by a half, and this follows from a conjectured generalization of results of Freed and Witten. Our results provide an elegant physical picture for the classification of classically massive vacua in the mass-deformed N=4 theories.

Aharony, Ofer; Rajaraman, Arvind

2000-11-15

144

[Suh Yang Park, who became a doctor as a son of a butcher].  

PubMed

Dr. Suh Yang Park was born in 1885 as a son of a butcher, which was the lowest class at that time in Korea. However, contact with western missionaries, including Dr. 0. R. Avison, provided him with an understanding of western civilization. After entering Chejungwon Medical School in 1900, Dr. Park learned basic sciences, basic medical sciences like anatomy and physiology, and other Western medical specialties such as internal medicine and surgery. He graduated from medical school in 1908 and received Government Certificate from Home Office, the first in Korea in this field, which granted the right to practice medicine. His certificate number was 4th overall. As both a doctor and a talented musician, Dr. Park actively participated in the social enlightenment movement. He was quite progressive in his time, having surpassed the social limitations as a son of a butcher, as well as actively propagating his knowledge of Western civilization onto others. After graduation, he had served as a professor at the school he graduated from, until he went into exile in Manchuria in 1917 due to the annexation of Korea by Japan in 1910. There, he opened a hospital and provided medical treatment for Koreans. He also established a school for young Koreans, inspiring them with a sense of nationalism. Also, Dr. Park was an active member of various Independence Movement Organizations in Manchuria. Then in 1932, at the time when Japan took control of Manchuria, his school was closed down. As a result, Dr. Park couldn't help but stop his anti-Japanese activities. In 1936, he returned to his homeland and passed away in 1940, just five years before the liberation of Korea from Japanese occupation. PMID:17575707

Park, Hyoung Woo; Hong, Jung Wan

2006-12-01

145

A trade-off between having many sons and shorter maternal post-reproductive survival in pre-industrial Finland.  

PubMed

A bias in reproduction towards sons, which are energetically more costly than daughters, has been suggested to shorten parental lifespan, but previous results have been mixed. Reproductive costs should be most evident in low rather than high resource settings, and are not expected to be severe in men, because women pay higher direct costs of reproduction. We, therefore, used demographic data from pre-industrial Finland to investigate whether the number of sons and daughters born affected their parents' post-reproductive survival and whether this was related to parent's resource availability. Irrespective of access to resources, mothers, but not fathers, with many sons suffered from reduced post-reproductive survival, and this association decreased as mothers aged. Our results provide evidence that Finnish mothers traded long post-reproductive lifespan for giving birth to many sons. PMID:23445948

Helle, Samuli; Lummaa, Virpi

2013-02-27

146

History: Las Vegas  

NSDL National Science Digital Library

Las Vegas (or "The Meadows" in Spanish) is a curious place, and it is not much of a stretch to say that it was transformed from a sleepy railroad town into a ring-a-ding swinging town in just a few decades during the 20th century. The Las Vegas Sun has gone above and beyond the call of duty by crafting a site that presents a multimedia-rich experience that narrates the history of this rather unique American city. Visitors should start their journey here by watching one or all eleven parts of their "Boomtown" video on the history of the town. Then visitors may want to take a look at the interactive map of the "Strip", which tells the fortunes of casinos and other buildings, past, present, and future, which have graced this notable region of mega-structures amidst the desert. After that, visitors should look at the "12 Voices from the Past" area. Voices like casino owner Benny Binion and former Nevada governor Mike O'Callaghan are featured here, and it's a great trip back through the city's varied past.

147

Ethnic differences in the mother-son relationship of incarcerated and non-incarcerated male adolescents in the Netherlands  

PubMed Central

Background In the Netherlands, youths of Moroccan origin account for a disproportionately large percentage of the population in juvenile justice institutions. Previous research showed that Moroccan adolescents in pre-trial arrest are characterized by less serious offending behavior (i.e., primarily property-based) and lower levels of mental health problems than native Dutch adolescents in pre-trial arrest. To date, little is known about the parent-child relationship of these adolescents. This study examines the mother-son relationships of Moroccan and native Dutch delinquent adolescents and their association with adolescent delinquency. Methods In the present study, differences in the mother-son relationship characteristics between families of incarcerated (N = 129) and non-incarcerated (N = 324) adolescents were examined, and it was analyzed if these differences between incarcerated and non-incarcerated adolescents were the same for Moroccans and native Dutch. Data collection for the incarcerated sample took place from 2006 to 2008. Comparison data were used of interviews conducted with mothers originating from former larger studies in the general Dutch population. Latent Class Analysis was performed in order to identify types of mother-son relationship. Logistic regression analyses were used to identify the relationships between mother-son relationship types, incarceration and ethnicity. Results A three class model of mother-son relationship types was found: a low-conflict mother-son relationship type, a high-conflict mother-son relationship type, and a neglectful mother-son relationship type. Compared to the native Dutch adolescents, Moroccans (both in the incarcerated and non-incarcerated population) more often showed a neglectful mother-son relationship type. For Moroccans, no differences in mother-son relationship types were found between the incarcerated and non-incarcerated adolescents, whereas considerable differences occurred between the native Dutch incarcerated and non-incarcerated adolescents. Conclusions Our findings indicate that mother-son relationship types of incarcerated Moroccan adolescents and non-incarcerated Moroccan adolescents are rather comparable. These findings are in line with previous studies which revealed the less problematic profile of Moroccan adolescents in pre-trial arrest in the Netherlands compared to native Dutch adolescents in pre-trial arrest.

2011-01-01

148

The Early Stages of the Transition to Adulthood: Similarities and Differences between Mother-Daughter and Mother-Son Dyads  

Microsoft Academic Search

The action-project method was used to explore similarities and differences in the goals and activities of mothers and sons, and mothers and daughters, working together to facilitate a successful future transition to adulthood. Participants were 10 mother?daughter dyads and 8 mother-son dyads, with a range of ethnicities and income levels. Data included video-recordings of conversations, transcripts of interviews, and self-report

José F. Domene; Krista D. Socholotiuk; Richard A. Young

2011-01-01

149

Self-Regulation in Early Adolescence: Relations with Mother–Son Relationship Quality and Maternal Regulatory Support and Antagonism  

Microsoft Academic Search

The purpose of the current investigation was to examine relations among maternal regulatory support, maternal antagonism,\\u000a and mother–son relationship quality in relation to boys’ self-regulation during early adolescence. As part of a larger longitudinal\\u000a study on 263 low-income, ethnically diverse boys, multiple informants and methods were used to examine associations among\\u000a parenting practices and mother–son relationship quality in relation to

Kristin L. MoilanenDaniel; Daniel S. Shaw; Amber Fitzpatrick

2010-01-01

150

Recepción y extensión de las explicaciones metafísicas de los números imaginarios en la España del siglo XIX  

Microsoft Academic Search

1. Preliminares El problema del rigor en Matemáticas puede afrontarse al menos desde dos puntos de vista. El primero, que encontramos sobre todo en las Matemáticas contemporáneas, procede del explosivo desarrollo de esta ciencia durante el Siglo XIX y se distingue sobre todo porque los matemáticos ejercientes son entrenados en ciertas técnicas que en líneas generales se componen de una

JOSÉ M. PACHECO CASTELAO

151

Las escuelas de secundaria en América Latina y el Caribe y la transición al mundo del trabajo  

Microsoft Academic Search

En este documento se analiza la organización de las escuelas secundarias en América Latina y el Caribe. Se tratan temas como son la provisión de escuelas para un conjunto estudiantil cada vez más heterogéneo y la triple función de preparar a los alumnos para la educación superior, formar ciudadanos serios y responsables y ofrecer cualquier tipo de formación que puedan

Claudio de Moura Castro; Martin Carnoy; Laurence Wolff

2000-01-01

152

Meta-analysis suggests choosy females get sexy sons more than "good genes".  

PubMed

Female preferences for specific male phenotypes have been documented across a wide range of animal taxa, including numerous species where males contribute only gametes to offspring production. Yet, selective pressures maintaining such preferences are among the major unknowns of evolutionary biology. Theoretical studies suggest that preferences can evolve if they confer genetic benefits in terms of increased attractiveness of sons ("Fisherian" models) or overall fitness of offspring ("good genes" models). These two types of models predict, respectively, that male attractiveness is heritable and genetically correlated with fitness. In this meta-analysis, we draw general conclusions from over two decades worth of empirical studies testing these predictions (90 studies on 55 species in total). We found evidence for heritability of male attractiveness. However, attractiveness showed no association with traits directly associated with fitness (life-history traits). Interestingly, it did show a positive correlation with physiological traits, which include immunocompetence and condition. In conclusion, our results support "Fisherian" models of preference evolution, while providing equivocal evidence for "good genes." We pinpoint research directions that should stimulate progress in our understanding of the evolution of female choice. PMID:22946794

Prokop, Zofia M; Michalczyk, ?ukasz; Drobniak, Szymon M; Herdegen, Magdalena; Radwan, Jacek

2012-05-14

153

Identification of murine homologues of the Drosophila son of sevenless gene: potential activators of ras.  

PubMed Central

Several findings suggest that signals from tyrosine kinases are transduced, at least in part, through ras proteins. These findings include (i) blockage of the transforming activity of constitutively active tyrosine kinases by inhibiting ras function and (ii) genetic screens in Caenorhabditis elegans and in Drosophila that identified ras genes as downstream effectors of tyrosine kinases. The recently isolated Drosophila gene Son of sevenless (Sos) is postulated to act as a positive regulatory link between tyrosine kinase and ras proteins by catalyzing exchange of GDP for GTP on ras protein. Such exchange proteins have been reported in extracts of mammalian cells but have not been previously characterized at a molecular level. As Sos appears to function in this role in Drosophila, we sought to isolate a vertebrate counterpart(s). We have characterized two widely expressed murine genes with a high degree of homology to Sos. Hybridization with human DNA and RNA indicates a high degree of conservation of these genes in other vertebrates. Images

Bowtell, D; Fu, P; Simon, M; Senior, P

1992-01-01

154

Polyandrous females benefit by producing sons that achieve high reproductive success in a competitive environment.  

PubMed

Females of many taxa often copulate with multiple males and incite sperm competition. On the premise that males of high genetic quality are more successful in sperm competition, it has been suggested that females may benefit from polyandry by accruing 'good genes' for their offspring. Laboratory studies have shown that multiple mating can increase female fitness through enhanced embryo viability, and have exposed how polyandry influences the evolution of the ejaculate. However, such studies often do not allow for both female mate choice and male-male competition to operate simultaneously. Here, I took house mice (Mus domesticus) from selection lines that had been evolving with (polygamous) and without (monogamous) sperm competition for 16 generations and, by placing them in free-ranging enclosures for 11 weeks, forced them to compete for access to resources and mates. Parentage analyses revealed that female reproductive success was not influenced by selection history, but there was a significant paternity bias towards males from the polygamous selection lines. Therefore, I show that female house mice benefit from polyandry by producing sons that achieve increased fitness in a semi-natural environment. PMID:21288948

Firman, Renée C

2011-02-02

155

Las paradas repentinas y las estrategias cambiarias en América Latina  

Microsoft Academic Search

(Disponible en idioma inglés únicamente) Un análisis de varios estudios de casos específicos en la región sugiere que la capacidad de sostener una política monetaria creíble depende del grado de vulnerabilidad de los países a las repercusiones de las paradas repentinas. A este respecto, hay cuatro aspectos de vital importancia que atenúan esas repercusiones. La apertura de la economía de

Arturo Galindo; Alejandro Izquierdo

2003-01-01

156

LAS and its disciplinary ambitions  

Microsoft Academic Search

Since the late 1980s and early 1990s, Language and Academic Skills (LAS) practitioners have been vitally interested in legitimating LAS knowledge, practices, and academic identity, primarily to counter institutional marginalisation and institutional misperceptions of who we are and what we do. In the quest for legitimation we have become involved in the process of organising our professional lives (Becher, 1989,

Stephen Milnes

157

Dominantly inherited cerebral dysplasia: arachnoid cyst associated with mild mental handicap in a mother and her son.  

PubMed Central

We report a mother and son who each presented in infancy with hypotonia and global developmental delay. Subsequently, in both subjects, mild mental handicap was diagnosed in association with temporal lobe arachnoid cysts. Mendelian inheritance of this phenotype seems likely and macroscopic cerebral dysplasia in general may be underdiagnosed in people with familial, mild mental handicap. Images

Tolmie, J L; Day, R; Fredericks, B; Galea, P; Moffett, A W

1997-01-01

158

The Quest of Father and Son: Illuminating Character Identity, Motivation, and Conflict in Cormac McCarthy's "The Road"  

ERIC Educational Resources Information Center

|"The Road" has been an important part of the author's English IV Honors course for several years now. Undeniably bleak, it details a father and son's journey through a seared, post-apocalyptic wasteland. As they travel through the burnt remains of America, they are threatened by starvation, dehydration, and scattered, hostile humans. Although his…

Gilbert, Chris

2012-01-01

159

A Review and Evaluation of Diverse Christological Opinions among American Evangelicals: Part 1: The eternal generation of the Son 1  

Microsoft Academic Search

The writer, himself an American evangelical, intends to discuss, in three articles, areas in which American evangelicals disagree about how God the Son relates to God the Father and the meaning and effects of the true humanity and the true deity in Christ. Each position will be defined and exemplified. The rationale offered by proponents of each position is provided.

William Grover

160

Post-Holocaust Theodicy, American Imperialism, and the ?very Jewish Jesus? of Norman Mailer's The Gospel According to the Son  

Microsoft Academic Search

The publication of Norman Mailer’s The Gospel According to the Son irritated many. Mailer was taken to task for the audacity of his choice to write in Jesus’s own voice, for his lack of Christological expertise, and for the limited capacity of his style and his ego to treat a sacred story. Others felt he adhered too closely to the

Brian McDonald

2006-01-01

161

Mothers and Sons: Androgynous Relationships in African-West Indian and African-American Novels of Youth.  

ERIC Educational Resources Information Center

Four African-American and West Indian novels of childhood illustrate relationships and bonding between mothers and sons: (1) "Go Tell It on the Mountain" (James Baldwin); (2) "Not without Laughter" (Langston Hughes); (3) "Amongst Thistles and Thorns" (Austin Clarke); and (4) "In the Castle of My Skin" (George Lanning). (SLD)

LeSeur, Geta

1992-01-01

162

Differences in Interaction Patterns of Families with First or Second Grade Sons Rated High or Low in Classroom Adjustment.  

ERIC Educational Resources Information Center

|This study attempts to determine whether families with a son rated by his teacher as either "high" or "low" on classroom adjustment (behavior indicative of social maturity and achievement motivation) could be differentiated on the basis of their communicative patterns. It was questioned if significant differences existed in the amount of positive…

St. Pierre, Susan; And Others

163

Growing Up in a Lesbian Family: The Life Experiences of the Adult Daughters and Sons of Lesbian Mothers  

Microsoft Academic Search

This qualitative study aims to explore the experience of being raised in a lesbian home from the perspective of the daughters and sons of lesbian families. Adult offspring of lesbian families participated in an online questionnaire that examined five themes: (1) positive aspects of being raised in a lesbian home, (2) opinions about discrimination towards lesbians in society, (3) reactions

Anna Leddy; Nanette Gartrell; Henny Bos

2012-01-01

164

Gender and Patterns of Concerned Responsiveness in Representations of the Mother-Daughter and Mother-Son Relationship  

ERIC Educational Resources Information Center

|Given that girls show more interpersonal concern than boys, it was predicted that more mother-daughter than mother-son dyads would develop a relationship of mutual concerned responsiveness (CR). Two hundred and twenty-six Israeli children (7-8 years old) and 91 mother-child pairs provided narratives of mother-child interactions. At high levels of…

Butler, Ruth; Shalit-Naggar, Rachel

2008-01-01

165

Mothers' and Fathers' Perceptions of Change and Continuity in Their Relationships With Young Adult Sons and Daughters  

Microsoft Academic Search

Guided by contemporary feminist revisions of individual theories on adolescent development, interviews with 142 parent dyads were conducted to better understand the variation in mothers' and fathers' perceptions of changes and continuities in their relationships with their firstborn young adult sons and daughters. A between-families content analysis of parents' responses revealed that the most salient issues were firstborns' independence, contact

Christine M. Proulx; Heather M. Helms

2008-01-01

166

Some Unexpected Sources for Paintings by the Artist Mihr Chand (fl. c. 1759–86), Son of Ganga Ram  

Microsoft Academic Search

Scholars have acknowledged that Mihr Chand, son of Ganga Ram (flourished c. 1759–86) is one of the finest artists to have flourished in the Mughal province of Awadh, at Faizabad and Lucknow, during the second half of the eighteenth century. Whilst it has been known that Mihr Chand received patronage from the British East India Company officer Antoine Polier (1741–95)

Malini Roy

2010-01-01

167

Gender and Patterns of Concerned Responsiveness in Representations of the Mother-Daughter and Mother-Son Relationship  

ERIC Educational Resources Information Center

Given that girls show more interpersonal concern than boys, it was predicted that more mother-daughter than mother-son dyads would develop a relationship of mutual concerned responsiveness (CR). Two hundred and twenty-six Israeli children (7-8 years old) and 91 mother-child pairs provided narratives of mother-child interactions. At high levels of…

Butler, Ruth; Shalit-Naggar, Rachel

2008-01-01

168

Self-Regulation in Early Adolescence: Relations with Mother-Son Relationship Quality and Maternal Regulatory Support and Antagonism  

ERIC Educational Resources Information Center

The purpose of the current investigation was to examine relations among maternal regulatory support, maternal antagonism, and mother-son relationship quality in relation to boys' self-regulation during early adolescence. As part of a larger longitudinal study on 263 low-income, ethnically diverse boys, multiple informants and methods were used to…

Moilanen, Kristin L.; Shaw, Daniel S.; Fitzpatrick, Amber

2010-01-01

169

Son Preference And Its Determinants In Rural India: An Analysis Based On A Composite Measure of Gender Bias  

Microsoft Academic Search

This paper examines the issue of gender bias in a broader context by constructing a multidimensional index of deprivation of daughters. Using the recently available World Bank LSMS data on the two most populated and poverty ridden states of India, we apply ordered logit regression analysis to investigate the determinants of degree of son preference based on this index of

Manisha Chakrabarty

2005-01-01

170

Organizational changes and value creation in leveraged buyouts : The case of the O.M. Scott & Sons Company  

Microsoft Academic Search

This study documents the organizational changes that took place at the O.M. Scott & Sons Company in response to its leveraged buyout. Our findings confirm that both the pressure of servicing a heavy debt load and management equity ownership lead to improved performance. Equally important at Scott. however. and undocumented in large-sample studies, are debt covenants restricting how the cash

George P. Baker; Karen H. Wruck

1989-01-01

171

Return Migration, Investment in Children, and Intergenerational Mobility: Comparing Sons of Foreign- and Native-Born Fathers  

ERIC Educational Resources Information Center

|This paper studies parental investment in education and intergenerational earnings mobility for father-son pairs with native- and foreign-born fathers. We illustrate within a simple model that for immigrants, investment in their children is related to their return migration probability. In our empirical analysis, we include a measure for return…

Dustmann, Christian

2008-01-01

172

Contemporary Daughter/Son Adult Social Role Performance Rating Scale and Interview Protocol: Development, Content Validation, and Exploratory Investigation  

ERIC Educational Resources Information Center

|The purpose of this study was to develop and content validate a Performance Rating Scale and Interview Protocol, enabling study of the social role performance of adult daughters and sons as they fulfill the societal norms and expectations of adult children. This exploratory investigation was one of 13 contemporary adult social roles completed by…

Cozad, Dana Everett

2009-01-01

173

EMPACT: THE LAS VEGAS INTERAGENCY PILOT PROGRAM  

EPA Science Inventory

ENPACT: The Las Vegas Interagency Pilot Project The Las Vegas Interagency Pilot Project of the EMPACT program has involved eleven efforts. These efforts are described in brief on the poster presentation. They include: Las Vegas Environmental Monitoring Inventory, the Qual...

174

Mothers' Academic Gender Stereotypes and Education-Related Beliefs About Sons and Daughters in African American Families  

PubMed Central

The role of African American mothers’ academic gender stereotype endorsement in shaping achievement-related expectations for and perceptions of their own children was examined. Mothers (N = 334) of 7th and 8th graders completed measures of expectations for their children’s future educational attainment, perceptions of their children’s academic competence, and academic gender stereotypes. Consistent with hypotheses, mothers held less favorable expectations for sons and perceived sons to be less academically competent than daughters. In addition, mothers reported stereotypes favoring girls over boys in academic domains; stereotype endorsement, in turn, was related to mothers’ educational expectations for and beliefs about the academic competence of their own children, even with youths’ actual achievement controlled. Negative stereotypes about the academic abilities of African American boys may create a negative feedback loop, thereby contributing to the maintenance of the gender gap in African Americans’ educational outcomes.

Wood, Dana; Kurtz-Costes, Beth; Okeke-Adeyanju, Ndidi; Rowley, Stephanie J.

2010-01-01

175

QCD Precision Measurements and Structure Function Extraction at a High Statistics, High Energy Neutrino Scattering Experiment: NuSOnG  

SciTech Connect

We extend the physics case for a new high-energy, ultra-high statistics neutrino scattering experiment, NuSOnG (Neutrino Scattering On Glass) to address a variety of issues including precision QCD measurements, extraction of structure functions, and the derived Parton Distribution Functions (PDFs). This experiment uses a Tevatron-based neutrino beam to obtain a sample of Deep Inelastic Scattering (DIS) events which is over two orders of magnitude larger than past samples. We outline an innovative method for fitting the structure functions using a parameterized energy shift which yields reduced systematic uncertainties. High statistics measurements, in combination with improved systematics, will enable NuSOnG to perform discerning tests of fundamental Standard Model parameters as we search for deviations which may hint of 'Beyond the Standard Model' physics.

Adams, T.; /Florida State U.; Batra, P.; /Columbia U.; Bugel, Leonard G.; /Columbia U.; Camilleri, Leslie Loris; /Columbia U.; Conrad, Janet Marie; /MIT; de Gouvea, A.; /Northwestern U.; Fisher, Peter H.; /MIT; Formaggio, Joseph Angelo; /MIT; Jenkins, J.; /Northwestern U.; Karagiorgi, Georgia S.; /MIT; Kobilarcik, T.R.; /Fermilab /Texas U.

2009-06-01

176

An unusual connective tissue disease in mother and son: a "new" type of Ehlers-Danlos syndrome?  

PubMed

A 23-year-old woman and her 2 1/2-year-old son both had large hernias, positional foot deformities, abnormal thoracic shape, asthma, and severe eczematoid dermatitis. Their facial appearance was quite similar and included asymmetry with prominent nasal bridge and small jaw. In addition, the mother had severe thoracolumbar kyphoscolosis and "cigarette paper" scars over her legs. She died after rupture of a a thoracic aortic aneurysm and was found on postmortem examination to have cystic medionecrosis of the aorta and myxomatous degeneration and elongation of the mitral and tricuspid valves. The family history was otherwise negative; there was no consanguinity. The connective tissue disease in this mother and her son appears to be a previously unrecognized dominantly-inherited disorder with some similarity to classical Ehlers-Danlos syndrome. PMID:7094393

Friedman, J M; Harrod, M J

1982-03-01

177

Interventional Use of the Parent–Child Interaction Assessment–II Enactments: Modifying an Abused Mother's Attributions to Her Son  

Microsoft Academic Search

We describe the assessment and treatment of a mother who was a victim of domestic violence and of her 10-year-old son, both of whom were living in a domestic violence shelter. The Parent–Child Interaction Assessment–II Modifying Attributions of Parents intervention (PCIA–II\\/MAP; Bohr, 2005; Bohr et al., 2008; Bohr & Holigrocki, 2005) is a structured brief treatment using video recordings from

Richard Holigrocki; Robbi Crain; Yvonne Bohr; Kelly Young; Heather Bensman

2009-01-01

178

Offspring sex ratio produced by female guppies in the wild correlates with sexual ornaments of their sons  

Microsoft Academic Search

The attractiveness hypothesis predicts that females produce broods with male-biased sex ratios when they mate with attractive\\u000a males. This hypothesis presumes that sons in broods with male-biased sex ratios sired by attractive males have high reproductive\\u000a success, whereas the reproductive success of daughters is relatively constant, regardless of the attractiveness of their sires.\\u000a However, there is little direct evidence for

Aya Sato; Kenji Karino

2011-01-01

179

Gender and Career Development Projects in Early Adolescence: Similarities and Differences between Mother-Daughter and Mother-Son Dyads  

Microsoft Academic Search

The way that mother-son and mother-daughter dyads engage in career projects was explored using the action-project differentiation procedure, a variant of the action-project method. The goal-directed actions, joint projects, and interactions of ten early adolescent boys and their mothers were examined in relation to the actions, projects, and interactions of ten early adolescent girls and their mothers. Many more similarities

José F. Domene; Rübab G. Arim; Richard A. Young

2007-01-01

180

Use of orthophosphate complexing agents to investigate mechanisms limiting the alteration kinetics of French SON 68 nuclear glass  

Microsoft Academic Search

This investigation was carried out to assess the protective properties of the alteration film that develops during aqueous alteration of the French SON 68 (R7T7-type) nuclear glass, notably by examining the behavior of some network-forming cations in the presence of complexing anions. Glass alteration was studied here in the presence of orthophosphate ions. Comparisons were established between two series of

S Gin; C Jégou; E Vernaz

2000-01-01

181

Parental mental health after the accidental death of a son during military service: 23-year follow-up study.  

PubMed

We prospectively studied parental mental health after suddenly losing a son in a military training accident. Parents (N = 32) were interviewed at 1, 2 and 23 years after the death of their son. The General Health Questionnaire and Expanded Texas Inventory of Grief were self-reported at 1, 2, 5, and 23 years; the Inventory of Complicated Grief was self-reported at 23 years. We observed a high prevalence of psychiatric disorders at 1- and 2-year follow-ups (57% and 45%, respectively), particularly major depression (43% and 31%, respectively). Only one mental disorder was diagnosed at the 23-year follow-up. Grief and psychological distress were highest at 1- and 2-year follow-ups. Spouses exhibited a high concordance of psychological distress. Mothers reported more intense grief reactions than did fathers. The loss of a son during military service may have a substantial impact on parental mental health particularly during the first 2 years after death. Spouses' grief can be interrelated and may contribute to their psychological distress. PMID:22210364

Kristensen, Pål; Heir, Trond; Herlofsen, Pål H; Langsrud, Øyvind; Weisæth, Lars

2012-01-01

182

Family psychoeducation and therapeutic alliance focused interventions for parents of a daughter or son with a severe mental illness.  

PubMed

This study compared the effectiveness of a family psychoeducational intervention (FPEI) and a therapeutic alliance focused intervention (TAFI) for parents of daughters and sons with severe mental illness (SMI). A process-outcome model was used to compare the effectiveness of the two interventions and to evaluate how they achieved their outcomes. Extent of effectiveness was assessed in terms of the family burden (FB) of the parents and the quality of life (QoL) and psychiatric symptoms of the daughters and sons. This study did not uncover a difference in effectiveness between the two interventions. However, at post-treatment, the participants in both interventions reported statistically significant less FB and attributed more QoL and less psychiatric symptoms to their daughters and sons than at pre-treatment. In addition, these pre- and post-treatment differences were mediated by specific mediating variables. These results are discussed in terms of the great psychotherapy debate (Wampold, 2001) as to the relative effectiveness of technique oriented interventions as compared to context oriented interventions. PMID:21482437

Levy-Frank, Itamar; Hasson-Ohayon, Ilanit; Kravetz, Shlomo; Roe, David

2011-04-11

183

Crueldad, simulacion, absurdo y amenaza: Barbarie del drama moderno y tradicion hermetica en los esperpentos de Ramon del Valle-Inclan  

Microsoft Academic Search

The purpose of this dissertation is to demonstrate that the esperpentos by the Spanish playwright Ramón del Valle-Inclán (1866–1936), represent a culminating moment of theatrical precepts of modern European drama, while perpetuating the ancient esoteric traditions of the Iberian Peninsula. Focusing on four plays—Los cuernos de Don Friolera (1920), Luces de Bohemia (1921), Las galas del difunto (1926) y La

Barbara Safille

2004-01-01

184

Mothers, fathers, sons, and daughters: gender differences in factors associated with parent-child communication about sexual topics  

PubMed Central

Background In the United States, nearly half of high school students are sexually active, and adolescents experience high rates of unintended pregnancy and sexually transmitted diseases. Parents can have an important influence on their children's sexual behaviour, but many parents do not talk with their children about sexual topics. Research has shown significant differences in parent-child communication about sexual topics depending on the gender of both the parent and the child. Little is known, however, about the reasons for these gender differences. The purpose of this paper is to describe how factors associated with parent-child communication about sexual topics differ by gender. Methods Data are from a nationwide online survey with 829 fathers and 1,113 mothers of children aged 10 to 14. For each of the four gender groups (fathers of sons, fathers of daughters, mothers of sons, mothers of daughters), we calculated the distribution of responses to questions assessing (1) parent-child communication about sex-related topics, and (2) factors associated with that communication. We used chi-square tests to determine whether the distributions differed and the false discovery rate control to reduce the likelihood of type I errors. Results With both sons and daughters, fathers communicated less about sexual topics than mothers did. Fathers also had lower levels of many characteristics that facilitate communication about sex (e.g., lower self-efficacy and lower expectations that talking to their children about sex would have positive outcomes). Compared with parents of sons, parents of daughters (both mothers and fathers) talked more about sexual topics, were more concerned about potential harmful consequences of sexual activity, and were more disapproving of their child having sex at an early age. Conclusions Using a large national sample, this study confirms findings from previous studies showing gender differences in parent-child communication about sexual topics and identifies gender differences in factors that may influence parent-child communication about sexual topics. Interventions designed to support parent-child communication about sexual topics should emphasize to both mothers and fathers the importance of talking to sons as well as daughters. Fathers need particular support to overcome the barriers to communication they encounter.

2010-01-01

185

Las perspectivas de las zonas económicas especiales de exportación  

Microsoft Academic Search

Con base en la actual globalización mundial de la economía y de la interdependencia comercial, tecnológica y financiera de los países y de la experiencia de la apertura económica de China, el gobierno colombiano propone la creación de las Zonas Económicas Especiales de Exportación, ZEEE, en los departamentos de Nariño, Valle del Cauca, Norte de Santander y Cesar para aumentar

Alexander Arévalo Luna; Paula Lucia Arevalo M

2002-01-01

186

Síntomas neurológicos de las enfermedades reumáticas  

Microsoft Academic Search

Resumen Una de las más importantes pero la menos co- mún de las manifestaciones de enfermedad autoinmune la constituye la vasculitis, la cual mo- difica la historia de la enfermedad, dependiendo del órgano afectado. Esta revisión incluye las más importantes manifestaciones y complicaciones de los sistemas nerviosos central y periférico que se desarrollan por vasculitis en las enfermedades reumáticas, ya

2007-01-01

187

El fenotipo de las mucinas en el es?fago de Barrett  

PubMed Central

Antecedentes El esófago de Barrett es una reconocida lesión precursora de adenocarcinoma esofágico. Aunque generalmente asociada al reflujo gastroesofágico, los mecanismos patogénicos de la enfermedad no son bien conocidos. El objetivo del presente estudio es explorar la historia natural e identificar marcadores de progreso del proceso precanceroso. Material y métodos Se utilizaron cortes histológicos de 67 especímenes de esófago correspondientes a 14 pacientes con esófago de Barrett, a los que se siguió entre 1 – 9 años. Se clasificaron las lesiones en: esófago de Barrett sin displasia, indefinido para displasia o con displasia. Se evaluó la expresión de diferentes mucinas en las células caliciformes y en las columnares usando técnicas de histoquímica e inmunohistoquímica. Resultados En todos los casos se comprobó la presencia de metaplasia intestinal incompleta. Las células columnares dentro del epitelio metaplásico contenían mucinas neutras. A mayor severidad de la lesión se encontró significativamente menor expresión de sialomucinas en las células columnares (p de tendencia igual a 0,03). En sujetos con lesiones indefinidas para displasia se observó un mayor contenido de sulfomucinas en las células caliciformes (p=0,034) y de MUC2 en las células columnares (p=0,029) que en sujetos con esófago de Barrett sin displasia. Se observó expresión de la mucina intestinal MUC2 y de la mucina gástrica MUC5AC en todas las muestras. MUC6, una mucina de las glándulas profundas gástricas, se presentó ocasionalmente. Conclusión La evaluación de los perfiles de mucinas en el esófago de Barrett sugiere una transición gradual del fenotipo del epitelio metaplásico a medida que la lesión avanza en el tiempo.

Torrado, Julio; Piazuelo, Maria Blanca; Ruiz, Irune; Izarzugaza, Maria Isabel; Camargo, Maria Constanza; Delgado, Alberto; Abdirad, Afshin; Correa, Pelayo

2011-01-01

188

SON protein regulates GATA-2 through transcriptional control of the microRNA 23a~27a~24-2 cluster.  

PubMed

SON is a DNA- and RNA-binding protein localized in nuclear speckles. Although its function in RNA splicing for effective cell cycle progression and genome stability was recently unveiled, other mechanisms of SON functions remain unexplored. Here, we report that SON regulates GATA-2, a key transcription factor involved in hematopoietic stem cell maintenance and differentiation. SON is highly expressed in undifferentiated hematopoietic stem/progenitor cells and leukemic blasts. SON knockdown leads to significant depletion of GATA-2 protein with marginal down-regulation of GATA-2 mRNA. We show that miR-27a is up-regulated upon SON knockdown and targets the 3'-UTR of GATA-2 mRNA in hematopoietic cells. Up-regulation of miR-27a was due to activation of the promoter of the miR-23a?27a?24-2 cluster, suggesting that SON suppresses this promoter to lower the microRNAs from this cluster. Our data revealed a previously unidentified role of SON in microRNA production via regulating the transcription process, thereby modulating GATA-2 at the protein level during hematopoietic differentiation. PMID:23322776

Ahn, Erin Eun-Young; Higashi, Tsunehito; Yan, Ming; Matsuura, Shinobu; Hickey, Christopher J; Lo, Miao-Chia; Shia, Wei-Jong; DeKelver, Russell C; Zhang, Dong-Er

2013-01-14

189

Persistence of maternal effects in baboons: Mother's dominance rank at son's conception predicts stress hormone levels in subadult males.  

PubMed

Dominance status and reproductive experience are maternal characteristics that affect offspring traits in diverse taxa, including some cercopithecine primates. Maternal effects of this sort are widespread and are sources of variability in offspring fitness. We tested the hypothesis that maternal dominance rank and reproductive experience as well as a male's own age and dominance rank predicted chronic fecal glucocorticoid (fGC) concentrations in 17 subadult wild male baboons, Papio cynocephalus (median age 6.5 years), in the Amboseli basin, Kenya. Among these variables, maternal dominance rank at a subadult male's conception was the sole significant predictor of the male's fGC and accounted for 42% of fGC variance; sons of lower ranking mothers had higher fGC than did those of high-ranking mothers. This result is striking because subadult male baboons are approximately 4-6 years past the period of infant dependence on their mothers, and are larger than and dominant to all adult females. In addition, many males of this age have survived their mothers' death. Consequently, the influence of maternal dominance rank persisted well beyond the stage at which direct maternal influence on sons is likely. Persistence of these major maternal influences from the perinatal period may signal organizational effects of mothers on sons' HPA axis. Although short-term, acute, elevations in GC are part of adaptive responses to challenges such as predators and other emergencies, chronically elevated GC are often associated with stress-related pathologies and, thereby, adverse effects on fitness components. PMID:18448106

Onyango, Patrick Ogola; Gesquiere, Laurence R; Wango, Emmanuel O; Alberts, Susan C; Altmann, Jeanne

2008-03-20

190

Investigaccion-accion en la sala de clases sobre las creencias de la cultura de la ciencia de un grupo de estudiantes universitarios y su relacion reciproca con el aprendizaje de las ciencias biologicas  

NASA Astrophysics Data System (ADS)

La investigacion---accion que se llevo a cabo en la sala de clases tenia como punto de partida las creencias de la cultura de la ciencia de un grupo de estudiantes universitarios para luego examinar sus implicaciones en el proceso de aprendizaje de las Ciencias Biologicas. ¿Que se supone que hagan las creencias en relacion con el aprendizaje? ¿En que consiste incorporar este aspecto a la practica educativa universitaria? Utilizando el modelo de Kemmis y McTaggart (1987) la investigacion-accion se planteo como un proceso dinamico en cuatro momentos en espiral constituidos por la planificacion, la accion, la observacion y la reflexion. Cada una de las fases tuvo una intencion retrospectiva y prospectiva formando una espiral de autorreflexion del conocimiento y la accion. Se llevaron a cabo audio grabaciones en clases y analisis de documentos. Ademas, la profesora-investigadora hizo un portafolio para reflexionar sobre las creencias de la cultura de la ciencia que tienen los estudiantes y las creencias del aprendizaje que tiene la profesora y sobre como la comprension de estos elementos ayudo a mejorar su practica educativa a traves del tiempo. Los resultados obtenidos apuntan a que las creencias de la cultura de la ciencia que tiene el grupo de estudiantes son diversas. Ellos si creen que la ciencia tiene una cultura la cual describieron como: complicada y desconocida que evoluciona constantemente, que es un conjunto de metodos, que es altamente tecnologica, que resuelve problemas de salud, ayuda a interpretar la realidad del mundo que los rodea y su origen y que existen unas intersecciones entre la ciencia y el poder. Sobre las creencias del proceso de aprendizaje de la profesora-investigadora, estas senalan que el modelaje de actores, la vision de la academia que tiene ella asi como la participacion y negociacion entre todos los involucrados en el proceso educativo, son factores que inciden en el proceso de aprendizaje.

Cordova-Santiago, Lizzette Astrid

191

Definitive Sun-as-a-star p-mode frequencies: 23 years of BiSON observations  

NASA Astrophysics Data System (ADS)

We present a list of `best possible' estimates of low-degree p-mode frequencies from 8640 days of observations made by the Birmingham Solar-Oscillations Network (BiSON). This is the longest stretch of helioseismic data ever used for this purpose, giving exquisite precision in the estimated frequencies. Every effort has been made in the analysis to ensure that the frequency estimates are also accurate. In addition to presenting the raw best-fitting frequencies from our `peak-bagging' analysis, we also provide tables of corrected frequencies pertinent to the quiet-Sun and an intermediate level of solar activity.

Broomhall, A.-M.; Chaplin, W. J.; Davies, G. R.; Elsworth, Y.; Fletcher, S. T.; Hale, S. J.; Miller, B.; New, R.

2009-06-01

192

When mothers make sons sexy: maternal effects contribute to the increased sexual attractiveness of extra-pair offspring  

PubMed Central

Quality differences between offspring sired by the social and by an extra-pair partner are usually assumed to have a genetic basis, reflecting genetic benefits of female extra-pair mate choice. In the zebra finch (Taeniopygia guttata), we identified a colour ornament that is under sexual selection and appears to have a heritable basis. Hence, by engaging in extra-pair copulations with highly ornamented males, females could, in theory, obtain genes for increased offspring attractiveness. Indeed, sons sired by extra-pair partners had larger ornaments, seemingly supporting the genetic benefit hypothesis. Yet, when comparing ornament size of the social and extra-pair partners, there was no difference. Hence, the observed differences most likely had an environmental basis, mediated, for example, via differential maternal investment of resources into the eggs fertilized by extra-pair and social partners. Such maternal effects may (at least partly) be mediated by egg size, which we found to be associated with mean ornament expression in sons. Our results are consistent with the idea that maternal effects can shape sexual selection by altering the genotype–phenotype relationship for ornamentation. They also caution against automatically attributing greater offspring attractiveness or viability to an extra-pair mate's superior genetic quality, as without controlling for differential maternal investment we may significantly overestimate the role of genetic benefits in the evolution of extra-pair mating behaviour.

Tschirren, Barbara; Postma, Erik; Rutstein, Alison N.; Griffith, Simon C.

2012-01-01

193

When mothers make sons sexy: maternal effects contribute to the increased sexual attractiveness of extra-pair offspring.  

PubMed

Quality differences between offspring sired by the social and by an extra-pair partner are usually assumed to have a genetic basis, reflecting genetic benefits of female extra-pair mate choice. In the zebra finch (Taeniopygia guttata), we identified a colour ornament that is under sexual selection and appears to have a heritable basis. Hence, by engaging in extra-pair copulations with highly ornamented males, females could, in theory, obtain genes for increased offspring attractiveness. Indeed, sons sired by extra-pair partners had larger ornaments, seemingly supporting the genetic benefit hypothesis. Yet, when comparing ornament size of the social and extra-pair partners, there was no difference. Hence, the observed differences most likely had an environmental basis, mediated, for example, via differential maternal investment of resources into the eggs fertilized by extra-pair and social partners. Such maternal effects may (at least partly) be mediated by egg size, which we found to be associated with mean ornament expression in sons. Our results are consistent with the idea that maternal effects can shape sexual selection by altering the genotype-phenotype relationship for ornamentation. They also caution against automatically attributing greater offspring attractiveness or viability to an extra-pair mate's superior genetic quality, as without controlling for differential maternal investment we may significantly overestimate the role of genetic benefits in the evolution of extra-pair mating behaviour. PMID:21957136

Tschirren, Barbara; Postma, Erik; Rutstein, Alison N; Griffith, Simon C

2011-09-28

194

High prevalence of anti-Trichinella IgG in domestic pigs of the Son La province, Vietnam.  

PubMed

Although several outbreaks of Trichinella infection among humans have occurred in northwestern Vietnam, no information is available on the circulation of Trichinella among domestic pigs. The objective of the present study was to estimate the seroprevalence of anti-Trichinella IgG in free-roaming pigs (Sus scrofa) in the Son La province of northwestern Vietnam, where a human outbreak of trichinellosis occurred in June 2008. Serum samples were collected from free-roaming pigs of four communes of the Bac Yen district (Son La province) and tested for Trichinella antibodies with a commercial ELISA kit using excretory/secretory antigens. Of 1035 pigs from which serum samples were collected, 206 were positive (19.9%). There was a significant difference in the prevalence among communes (chi(2)=22.87, 3 d.f., p<0.0001). Muscle samples from 76 serologically positive pigs were tested by artificial digestion. Trichinella larvae were detected in 11 (14.5%) of them. The larvae were identified by multiplex PCR as Trichinella spiralis. This study provides the first data on the circulation of T. spiralis in domestic pigs reared in Vietnam, and the results are useful for evaluating the risk of infection for humans. The results indicate that pigs act as a reservoir and play an important role in the maintenance of the domestic cycle of T. spiralis in northwestern Vietnam. PMID:19962244

Vu Thi, N; Dorny, P; La Rosa, G; To Long, T; Nguyen Van, C; Pozio, E

2009-11-04

195

Gender differences in the heritability of musculoskeletal and body composition parameters in mother-daughter and mother-son pairs.  

PubMed

Bone mass and body composition traits are genetically programmed, but the timing and gender and site specificities of their heritability are unclear. Mother-child correlations of bone mineral density (BMD) and bone mineral content, lean mass, and fat mass were studied in 169 premenopausal mothers and their 239 children. Heritability estimates of lean mass, fat mass, BMD, and area were derived for each gender and pubertal stage. There were significant correlations for most densitometry-derived variables at the spine, hip, femoral neck (FN), and total body (r=0.192-0.388) in mother-postmenarcheal daughter pairs, for bone areas at all sites in early puberty (r=0.229-0.508) and for volumetric-derived density at FN and spine (r=0.238-0.368) in mother-son pairs. Fat mass correlations were significant in both genders after puberty (r=0.299-0.324) and lean mass in postmenarcheal girls only (r = 0.299). Heritability estimates varied between 21% and 37% for mother-daughter and 18% and 35% for mother-son pairs for density-derived variables and between 26% and 40% for body composition variables. Maternal inheritance of bone traits is expressed in early-pubertal boys for several skeletal site traits but consistently involves most site traits in girls and boys by late puberty. Body composition inheritance is more variable. PMID:22704220

Nabulsi, Mona; Mahfoud, Ziyad; El-Rassi, Rola; Al-Shaar, Laila; Maalouf, Joyce; El-Hajj Fuleihan, Ghada

2012-06-15

196

THE SONS OF HAM  

Microsoft Academic Search

Unlike previous heroes in black American fiction who are alienated both from the white society which rejects them and from the black community which they in turn reject, those of James Baldwin accept their color from the outset and thus recover their sense of unity with their black group, an essential condition of their commitment. The psychological results of this

ALBERT GÉRARD; Judith H. McDowell

1971-01-01

197

Son and father.  

PubMed

I have traced in my deliberations the mutual influence of drive and ego development throughout the male child's dyadic and triadic father relatedness as it proceeds within a changing soma and social surround during the first two decades of life. I have made the effort to conceptualize the normal developmental progression in male personality formation with explicit reference to the fate of the boy's dyadic father relationship as well as his negative Oedipus complex in general. These considerations, restricted as they are in scope and gender, assign to the dyadic father complex a nuclear role in neurosogenesis as well as recognize in it an etiological factor in relation to specific forms of psychopathology throughout the male life cycle. PMID:6736545

Blos, P

1984-01-01

198

Sweet Sorrow's Son.  

ERIC Educational Resources Information Center

Presents an award-winning essay about a teacher's relationship with a troubled student placed in his alternative classroom. Shows how the two worked together on science, math, and "Romeo and Juliet." (TB)

Brothers, Deborah

1997-01-01

199

Son of God or \\  

Microsoft Academic Search

Demonstrably 'christlike' characters appear in many of John Steinbeck's novels: e.g., Joseph Wayne (To a God Unknown), Jim Nolan (In Dubious Battle), and Juan Chicoy (The Wayward Bus). Among these, however, one stands out: Jim Casy of 1939's The Grapes of Wrath. Disillusioned with conventional 'piety', and dismayed by the exploitation of his fellow workers in depression-era California, this recalcitrant

Stephen Bullivant

200

[A familial form of ventricular non compaction in a mother and two of his sons in St. Louis, Senegal].  

PubMed

We report a familial form of ventricular non compaction in a mother and two of her sons. It was a young man of 25 years who presented with NYHA stage III dyspnea and a cough with bloody sputum. The clinical examination found left ventricular failure. The echocardiogram done showed left ventricular dilatation with large trabeculae separated by deep intertrabecular recesses in both ventricles suggestive of a non-biventricular compaction. It was possible to note from the family screening by echocardiography of the mother and half-brother a left ventricular non compaction while they were asymptomatic. Thus we concluded a familial form of ventricular non-compaction. This is the first familial case described in Senegal. PMID:22222066

Pessinaba, S; Mbaye, A; Yabéta, G A D; Ndiaye, M B; Kane, Ad; Harouna, H; Bodian, M; Mathieu, S J B; Diack, B; Diao, M; Kane, A

2011-12-27

201

The Sun-as-a-star observations: GOLF & VIRGO on SoHO, and BiSON network  

NASA Astrophysics Data System (ADS)

Sun-as-a-star observations are very important for the study of the conditions within the Sun and in particular for the deep interior where higher degree modes do not penetrate. They are also of significance in this era of dramatic advances in stellar asteroseismology as they are comparable to those measured in other stars by asteroseismic missions such as CoRoT, Kepler, and MOST. More than 17 years of continuous measurements of SoHO and more than 30 years of BiSON observations provide very long data sets of uninterrupted helioseismic observations. In this work, we discuss the present status of all these facilities that continue to provide state-of-the-art measurements and invaluable data to improve our knowledge of the deepest layers of the Sun and its structural changes during the activity cycle.

García, R. A.; Davies, G. R.; Jiménez, A.; Ballot, J.; Mathur, S.; Salabert, D.; Chaplin, W. J.; Elsworth, Y.; Régulo, C.; Turck-Chièze, S.

2013-06-01

202

Deletion of locus D15S113 in a mother and son without features of Angelman syndrome  

SciTech Connect

Deletions of the proximal long arm of chromosome 15 result in Angelman syndrome when inherited from the mother and Prader-Willi syndrome when inherited from the father. The minimal critical deletion region for Angelman syndrome has been reported to include D15S74 (B1.5), D15S10 (TD3-21), and D15S113 (LS6-1). We report a mother and son who have deletions that include D15S113 but who do not have features of Angelman syndrome. D.H. is a 10-year-old white male referred for genetic evaluation due to mental retardation. He has mild to moderate mental retardation and minor dysmorphic features, including downslanting palpebral fissures, prominent nose, broad forehead, small chin, midface hypoplasia, and large ears. His mother (B.S.) has slightly downslanting palpebral fissures and a borderline intellectual deficit. Neither individual has the seizures, excessive laughter, hand clapping, ataxia or facial dysmorphism which are characteristic of Angelman syndrome. The linear order of probes mapping to 15q11-q13 is 15cen-D15S11-D15S13-D15S10-D15S113-GABRB3-D15S12-tel. The proximal border of the deletion in our patients lies between D15S10 and D15S113. The fact that these two individuals do not have Angelman syndrome, despite deletion of D15S113, suggests that the Angelman syndrome critical deletion region should be further refined to exclude the D15S113 locus. In addition, the findings of a more severe intellectual impairment in the son than in the mother suggests that the region immediately telomeric to the critical deletion region for Angelman syndrome may contain imprintable genes that influence intellectual function.

Michaelis, R.C.; Tarleton, J.C.; Donlon, T.A.; Simensen, R.J. [Greenwood Gneetic Center, SC (United States)] [and others

1994-09-01

203

Birth Defects in the Sons and Daughters of Women who were Exposed in utero to Diethylstilbestrol (DES)  

PubMed Central

Background Prenatal exposure to diethylstilbestrol (DES) is associated with adverse health outcomes, including anatomic anomalies of the reproductive tract in women and of the genitourinary tract in men. The mouse model, which replicates many DES-related effects seen in humans, suggests that prenatal DES exposure causes alterations that may affect the next generation of offspring. Methods Women participating in a large multi-center study of prenatal DES exposure were asked to report birth defects occurring among 4,029 sons and 3,808 daughters (i.e., the third generation). A subcohort of 793 third generation daughters were also queried for birth defects. We used logistic regression models to generate odds ratios and 95% confidence intervals for the association between prenatal DES exposure in the mother and birth defects in the offspring. Results Based on the mothers’ reports, overall birth defects were elevated in the sons (OR = 1.53; 95% CI = 1.04, 2.23) and in the daughters (OR = 2.35; 95% CI = 1.44, 3.82). Most estimates of association were imprecise, but daughters appeared to have an excess of heart conditions (OR = 4.56; 95% CI = 1.27, 16.34. Conclusions . Our data suggest a possible association between the mother’s prenatal DES exposure and birth defects in their offspring, particularly in daughters. We cannot, however, rule-out the possible influence of reporting bias. In particular, the exposed daughters’ elevated risk of cardiac defects may be due to the underreporting of these conditions by unexposed mothers.

Titus-Ernstoff, Linda; Troisi, Rebecca; Hatch, Elizabeth E.; Palmer, Julie R.; Hyer, Marianne; Kaufman, Raymond; Noller, Kenneth; Hoover, Robert N.

2009-01-01

204

DESARROLLO Y PROVISIÓN INICIAL DE ENTRENAMIENTO INTENSIVO EN LAS HABILIDADES SOCIALES Y PREPARACIÓN PARA EL TRABAJO EN ADULTOS CON TRAUMATISMO ENCÉFALO-CRANEAL: POSIBILIDADES DE REPLICACIÓN EN EL RÍO DE LA PLATA  

Microsoft Academic Search

Resumen Los déficit en habilidades sociales luego de traumatismo encéfalo-craneal severo son predominantes. Sin embargo, el desarrollo y la provisión de tratamientos preventivos durante el proceso de rehabilita- ción no han estado a la par de las necesidades en esta área. Este estudio describe el desarrollo conceptual y la provisión inicial de programas intensivos de entrenamiento de habilidades sociales y

THOMAS D. UPTON; PAOLA PREMUDA; JAMES BORDIERI

205

Superintegrability on N-dimensional spaces of constant curvature from so(N + 1) and its contractions  

SciTech Connect

The Lie-Poisson algebra so(N + 1) and some of its contractions are used to construct a family of superintegrable Hamiltonians on the N-dimensional spherical, Euclidean, hyperbolic, Minkowskian, and (anti-)de Sitter spaces. We firstly present a Hamiltonian which is a superposition of an arbitrary central potential with N arbitrary centrifugal terms. Such a system is quasi-maximally superintegrable since this is endowed with 2N - 3 functionally independent constants of motion (plus the Hamiltonian). Secondly, we identify two maximally superintegrable Hamiltonians by choosing a specific central potential and finding at the same time the remaining integral. The former is the generalization of the Smorodinsky-Winternitz system to the above six spaces, while the latter is a generalization of the Kepler-Coulomb potential, for which the Laplace-Runge-Lenz N vector is also given. All the systems and constants of motion are explicitly expressed in a unified form in terms of ambient and polar coordinates as they are parametrized by two contraction parameters (curvature and signature of the metric).

Herranz, F. J., E-mail: fjherranz@ubu.e [Universidad de Burgos, Departamento de Fisica, Escuela Politecnica Superior (Spain); Ballesteros, A., E-mail: angelb@ubu.e [Universidad de Burgos, Departamento de Fisica, Facultad de Ciencias (Spain)

2008-05-15

206

How parasitoid females produce sexy sons: a causal link between oviposition preference, dietary lipids and mate choice in Nasonia.  

PubMed

Sexual selection theory predicts that phenotypic traits used to choose a mate should reflect honestly the quality of the sender and thus, are often costly. Physiological costs arise if a signal depends on limited nutritional resources. Hence, the nutritional condition of an organism should determine both its quality as a potential mate and its ability to advertise this quality to the choosing sex. In insects, the quality of the offspring's nutrition is often determined by the ovipositing female. A causal connection, however, between the oviposition decisions of the mother and the mating chances of her offspring has never been shown. Here, we demonstrate that females of the parasitic wasp Nasonia vitripennis prefer those hosts for oviposition that have been experimentally enriched in linoleic acid (LA). We show by (13)C-labelling that LA from the host diet is a precursor of the male sex pheromone. Consequently, males from LA-rich hosts produce and release higher amounts of the pheromone and attract more virgin females than males from LA-poor hosts. Finally, males from LA-rich hosts possess three times as many spermatozoa as those from LA-poor hosts. Hence, females making the right oviposition decisions may increase both the fertility and the sexual attractiveness of their sons. PMID:21429922

Blaul, Birgit; Ruther, Joachim

2011-03-23

207

Autosomal dominant inheritance of Williams-Beuren syndrome in a father and son with haploinsufficiency for FKBP6.  

PubMed

Williams-Beuren syndrome (WBS) is a neurodevelopmental microdeletion disorder that usually occurs sporadically due to its location within a highly repetitive genomic region that is unstable and prone to unequal cross-over during meiosis. The consequential loss of chromosomal material includes approximately 1.5 Mb of DNA at 7q11.23. Whilst cases of dominant inheritance have been described in the literature, there have been few reports of molecular confirmation and none have carried out detailed genotyping. We describe a Bulgarian father and son with WBS detected by fluorescent in situ hybridisation (with an elastin gene probe) and loss of heterozygosity mapping using microsatellite markers located in the critical region. These individuals appear to have a common WBS heterozygous deletion, confirming the expected dominant transmission and adding to the few familial cases reported. The deletion includes the gene FKBP6 which has recently been shown to play a role in homologous chromosome pairing in meiosis and male fertility in mouse models. Homozygous Fkbp6 -/- male mice are infertile and our data suggests that haploinsufficiency for FKBP6 does not appear to preclude male fertility in WBS, although male infertility involving this gene has the potential to follow the mouse model as a human autosomal recessive condition. PMID:15770126

Metcalfe, Kay; Simeonov, Emil; Beckett, William; Donnai, Dian; Tassabehji, May

2005-04-01

208

[Family form of isolated left ventricular noncompaction; case of a mother and her son observed in Gabon].  

PubMed

We describe a case report of a young Gabonese lady who presented an acute pulmonary oedema and we suspected a paripartum cardiomyopathy. Subsequent investigations showed isolated left ventricular noncompaction. A few months later, the same disease was disclosed at her 9 year-old son who presented a cardiac insufficiency. Therefore, we suspect a family form of left ventricular noncompaction. And it is the first description in subsaharan Africa. The hereditary character of this new form of cardiomyopathy linked to a genetic mutation on the X chromosome is well known. This disease is associated with heart failure, high incidence of systemic thromboembolism complications or ventricular arrhythmia. The echocardiography and the cardiac magnetic resonance imaging has been reported to be tools for diagnosis. In Africa, access to these techniques remains a privilege. So the discovery of illness is often late and the family screening are special. In our area, the therapeutic management is the medical treatment of heart failure. Implatable cardioverter defibrillator or heart transplantation are not available. So long-term prognosis of our patients with congestive heart failure stays poor. With best equipment in our hospitals and good training of African cardiologists, we should improve the management of our patients. PMID:21676376

Mipinda, J B; Ibaba, J; Nkoghe, D D; Kombila, P A

2011-05-10

209

A case study of conflict management in bonobos: how does a bonobo (Pan paniscus) mother manage conflicts between her sons and her female coalition partner?  

PubMed

Female coalitions are an important part of the social organization of bonobos. The strength of the mother-son relationship is another essential part of this social structure. A bonobo mother is therefore facing a dilemma when a conflict arises between her sons and her female coalition partners. Will she take her coalition partner's side and favour the social organization of the group or support her son in order to defend her offspring? In order to address this issue, we performed an observational study of the captive group at Planckendael (Belgium) and used social grooming and proximity to assess the relationship between individuals. As a case study, we focused on the relationships between Hortense, one of the group's mothers, her 3 sons Redi, Vifijo and Zamba, and her coalition partner Hermien. Surprisingly, we observed that Hortense preferentially supported her female coalition partner. For Hortense's social status in the group, it may be more important to maintain the strong relationship with her higher-ranking female coalition partner than to support her sons. PMID:22286277

Legrain, L; Stevens, J; Alegria Iscoa, J; Destrebecqz, A

2012-01-25

210

Mutation rate estimates for 110 Y-chromosome STRs combining population and father-son pair data  

PubMed Central

Y-chromosome microsatellites (Y-STRs) are typically used for kinship analysis and forensic identification, as well as for inferences on population history and evolution. All applications would greatly benefit from reliable locus-specific mutation rates, to improve forensic probability calculations and interpretations of diversity data. However, estimates of mutation rate from father–son transmissions are available for few loci and have large confidence intervals, because of the small number of meiosis usually observed. By contrast, population data exist for many more Y-STRs, holding unused information about their mutation rates. To incorporate single locus diversity information into Y-STR mutation rate estimation, we performed a meta-analysis using pedigree data for 80 loci and individual haplotypes for 110 loci, from 29 and 93 published studies, respectively. By means of logistic regression we found that relative genetic diversity, motif size and repeat structure explain the variance of observed rates of mutations from meiosis. This model allowed us to predict locus-specific mutation rates (mean predicted mutation rate 2.12 × 10?3, SD=1.58 × 10?3), including estimates for 30 loci lacking meiosis observations and 41 with a previous estimate of zero. These estimates are more accurate than meiosis-based estimates when a small number of meiosis is available. We argue that our methodological approach, by taking into account locus diversity, could be also adapted to estimate population or lineage-specific mutation rates. Such adjusted estimates would represent valuable information for selecting the most reliable markers for a wide range of applications.

Burgarella, Concetta; Navascues, Miguel

2011-01-01

211

Abundancias químicas de las estrellas CP del grupo HgMn ? Leporis y 53 Tauri. II. Boro, Berilio, Carbono, Magnesio, Aluminio y Silicio  

NASA Astrophysics Data System (ADS)

Se determinan las abundancias químicas de los elementos más livianos presentes en dos estrellas CP del grupo HgMn, ? Lep y 53 Tau, utilizando espectros IUE de alta resolución y técnicas de cálculo de espectros sintéticos. Para el cálculo de las líneas se utiliza la lista mas completa de datos atómicos disponible y el programa SYNTHE. Para el cálculo de la abundancia de un elemento se comparan, para cada imagen, los perfiles observados del mayor número de líneas presentes con los perfiles calculados obtenidos por variación de las abundancias iniciales, reteniendo la abundancia para la cual el acuerdo entre las líneas observadas y calculadas es considerado visualmente el mejor. Los resultados obtenidos son comparados con los estimados por la teoría de la difusión.

López García, Z.; Malaroda, S. M.; Faraggiana, R.

212

ROL DE LAS ALTERNATIVAS EN LA NEGOCIACIÓN  

Microsoft Academic Search

Teniendo en cuenta que el mundo está atravesando una veloz y profunda transformación; es importante considerar que para poder afrontar tales cambios la negociación racional, inteligente y profesionalizada constituye un elemento imprescindible para la sociedad, donde deben asumirse métodos adecuados para la administración y solución de conflictos. Las personas, los gobiernos y las organizaciones han tomado conciencia y madurado de

Marilyn López Molina; Zoila Banguela Villavicencio

2009-01-01

213

Variación temporal de las constantes fundamentales  

Microsoft Academic Search

La variación temporal de las constantes fundamentales es un problema que ha motivado numerosos trabajos teóricos y experimentales desde la hipótesis de los grandes números de Dirac en 1937. Entre los métodos experimentales y observacionales para establecer restricciones sobre la variación de las constantes fundamentes es importante mencionar: comparación entre relojes atómicos[1], métodos geofísicos[2][3], análisis de sistemas de absorción en

S. J. Landau; H. Vucetich

1999-01-01

214

Conservación y Acondicionamiento de las Raíces Frescas  

Microsoft Academic Search

La yuca (Manihot esculenta) es un alimento importante porque es fuente económica de calorías, especialmente para las gentes de pocos recursos económicos que habitan las regiones tropicales del mundo. Por tal razón, los científicos han hecho grandes esfuerzos para desarrollar variedades de mayor rendimiento y para diseñar tecnologías apropiadas de bajos insumos que mejoren la producción del cultivo. La aplicación

Teresa Sánchez; Lisímaco Alonso

215

Las Vegas Basin Seismic Response Project: Preliminary Results From Seismic Refraction Experiments, Las Vegas, NV  

Microsoft Academic Search

In May and September 2002, seismic refraction data were acquired in the Las Vegas basin. Located in the southern Basin and Range province, the cities of Las Vegas, North Las Vegas, and Henderson sit atop a fault-bounded basin with a depth of up to 5 km and basin dimensions of roughly 60 km wide (east-west) by 50 km in length

S. A. Zaragoza; C. M. Snelson; S. H. Harder; G. Kaip; B. Luke; B. J. Buck; A. D. Hanson

2002-01-01

216

UNA ESTIMACIÓN DE LAS NECESIDADES DE GASTO DE LAS COMUNIDADES AUTÓNOMAS  

Microsoft Academic Search

El objetivo de este trabajo consiste en realizar un cálculo de las necesidades de gasto relativas de las Comunidades Autónomas. El método propuesto en el trabajo se basa en la descomposición del índice de necesidades de gasto en una suma de los índices de necesidades de las distintas funciones de gasto, ponderados según su peso en un “presupuesto de gasto

Antoni Castells Oliveres

2001-01-01

217

Integrable string models with constant torsion in terms of chiral invariants of SU(n), SO(n), SP(n) groups  

SciTech Connect

We used the invariant local chiral currents of principal chiral models for SU(n), SO(n), SP(n) groups to construct new integrable string equations of hydrodynamic type on the Riemann space of the chiral primitive invariant currents and on the chiral nonprimitive Casimir operators as Hamiltonians.

Gershun, V. D., E-mail: gershun@kipt.kharkov.u [NSC Kharkov Institute of Physics and Technology, Institute of Theoretical Physics (Ukraine)

2010-02-15

218

A Review and an Evaluation of Diverse Christological Opinions among American Evangelicals: Part 2: The Eternal Role Subordination of the Son 1  

Microsoft Academic Search

The writer, himself an American Evangelical, intends to discuss, in three articles, areas in which American Evangelicals disagree about how God the Son relates to God the Father and the meaning and effects of the true humanity and the true deity in Christ. Each position will be defined and exemplified. The rationale offered by proponents of each major position is

Bill Grover

219

Effects of Ethanol Administration and Induction of Anxiety-Related Affective States on the Acoustic Startle Reflex in Sons of Alcohol-Dependent Fathers  

Microsoft Academic Search

Background: The high rate of comorbidity between alcoholism and anxiety disorders suggests some causal link. This study used the startle reflex to investigate whether increased reactivity to stimuli inducing fear or related affective states might be one mechanism by which a family genetic risk promotes the development of alcohol use disorders. Methods: Thirty-one sons of alcoholics (PH) were recruited from

Ulrich Zimmermann; Konstanze Spring; Hans-Ulrich Wittchen; Florian Holsboer

2004-01-01

220

Haga un mantenimiento adecuado de las cortadoras ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... Las cortadoras de embutidos que se usan generalmente para cortar carnes rojas, quesos, frutas y verduras en los establecimientos minoristas y de ... More results from www.fda.gov/food/guidanceregulation/retailfoodprotection

221

Degradation analysis of linear alkylbenzene sulfonates (LAS)  

SciTech Connect

The degradation of mixtures of sodium salts of butyl-, decyl-, and dodecylbenzene sulfonate was studied as influenced by shaking for seven days, by the addition of soil and sand, and by changes in pH. LAS were analyzed by measurement of the absorbance at 223 nm or by reaction with methylene blue and measurement of the absorbance at 652 nm. Slurries containing 48.0 g/l. and 6.6 g/l. of LAS degraded at room temperature, which suggested a simple chemical decomposition of the LAS to simpler products since these concentrations prohibited microbial activity. None of the treatments significantly aided the degradation process, except the addition of soil, i.e., the addition of a source of microorganisms. Contrary to the LAS slurry data, the dodecylbenzene sulfonate solution did not degrade even after aging for 30 days; however, it degraded completely after 7 days on the addition of a glucose and nutrient solution.

Sandhu, S.S.; Warren, W.J.; Reed, A.

1980-01-01

222

Are LAS-codes a miracle ?  

Microsoft Academic Search

Large area synchronized (LAS)-CDMA has been proposed to enhance third generation and fourth generation wireless systems. LAS-CDMA is based on multiple access codes that result from a combination of LA codes and pulse compressing LS codes. To reduce multiple access interference and intersymbol interference in time dispersive channels, LS codes have perfect auto-correlation and cross-correlation functions in a certain vicinity

S. Stanczak; H. Boche; M. Haardt

2001-01-01

223

Seismic evidence for significant crustal thickening beneath Jabalpur earthquake, 21 May 1997, source region in Narmada-Son lineament, central India  

NASA Astrophysics Data System (ADS)

We investigate crustal properties beneath the deep crustal (~35 km) Jabalpur earthquake of 21 May 1997, Narmada-Son Lineament (NSL), central India, in search of a possible cause of stress accumulation in the region. Teleseismic receiver functions computed at nine digital seismographs along a 250 km long profile suggests Moho downwarp to ~52 km across the width of the lineament, in contrast with an average 40 km depth elsewhere. In addition, the crust beneath the NSL has higher Vp/Vs of 1.84 compared to ~1.73 in the surrounding, suggestive of a high-density mafic mass at depth that compensates the crustal root, also supported by small topographic variation (200 m) across the lineament. Presence of such an anomalous mass in the deep crust may lead to gravitationally induced stresses in the lower crust that contribute to the failure of rock along the pre-existing Narmada-Son fault leading to the earthquake in deep crust.

Rai, S. S.; Vijay Kumar, T.; Jagadeesh, S.

2005-11-01

224

Analytical electron microscopy study of surface layers formed on the French SON68 nuclear waste glass during vapor hydration at 200°C  

Microsoft Academic Search

Extensive solid-state characterization (AEM\\/SEM\\/HRTEM) was completed on six SON68 (inactive R7T7) waste glasses which were altered in the presence of saturated water vapor (200°C) for 22, 91, 241, 908, 1000, 1013, and 1021 days. The samples were examined by AEM in cross-section (lattice-fringe imaging, micro-diffraction, and quantitative thin-film EDS analysis). The glass monoliths were invariably covered by a thin altered

W. L. Gong; L. M. Wang; R. C. Ewing; E. Vernaz; J. K. Bates; W. L. Ebert; CEA-VALRHO

1998-01-01

225

Characteristics and Frequency of Germline Mutations at Microsatellite Loci from the Human Y Chromosome, as Revealed by Direct Observation in Father\\/Son Pairs  

Microsoft Academic Search

A number of applications of analysis of human Y-chromosome microsatellite loci to human evolution and forensic science require reliable estimates of the mutation rate and knowledge of the mutational mechanism. We therefore screened a total of 4,999 meioses from father\\/son pairs with confirmed paternity (probability >99.9%) at 15 Y- chromosomal microsatellite loci and identified 14 mutations. The locus-specific mutation-rate estimates

Manfred Kayser; Lutz Roewer; Minttu Hedman; Lotte Henke; Jürgen Henke; Silke Brauer; Carmen Krüger; Michael Krawczak; Marion Nagy; Tadeusz Dobosz; Reinhard Szibor; Peter de Knijff; Mark Stoneking; Antti Sajantila

2000-01-01

226

Calendario sobre el Tiempo y las Estaciones  

NSDL National Science Digital Library

Este Web site contiene links a 12 calendarios (12 meses). Diciembre contiene siete actividades que combinan matemáticas con el tiempo y las estaciones. Por ejemplo, los chicos investigan a qué hora se pone el sol hoy, evalúan su día, o calculan cuántos días quedan para las vacaciones escolares. Se puede utilizar como actividad independiente, como actividad para hacer en casa, o como actividad de grupo. Disponible para descargar en formato pdf y en Inglés.

Terc

2010-01-01

227

Las Vegas bets on a sure winner  

SciTech Connect

To protect the quality of Lake Mead and Las Vegas Wash in Nevada, six water treatment alternatives and three wastewater treatment plants in the Las Vegas Valley were analyzed. The treatment plants and the treatment alternatives are described. Studies on cost-effectiveness, functional limitations, environmental impact, and energy-efficiency of the treatment alternatives are discussed. The low lime treatment mode should be used initially at area treatment facilities because of its proven dewatering characteristics, and the alum treatment mode should receive further testing. (4 diagrams, 1 map, 2 photos, 6 tables)

Gilbert, J.B.; Culp, G.L.; Salo, J.E.

1980-09-01

228

Alcoholism and Drug Abuse in Las Juntas  

Microsoft Academic Search

Background: Originally, while in Costa Rica I wanted to investigate alcoholism and drug addiction within the Las Juntas community. Specifically, I wanted to look at addiction as it pertains to the mining community in comparison with the rest of the public. I hypothesized that there may be cultural influences from the mining community, that may correlate with alcoholism and drug

Suzanne Wasserman

229

Optimal Speedup of Las Vegas Algorithms  

Microsoft Academic Search

Let A be a Las Vegas algorithm, i.e., A is a randomized algorithmthat always produces the correct answer when it stops but whose runningtime is a random variable. We consider the problem of minimizingthe expected time required to obtain an answer from A using strategieswhich simulate A as follows: run A for a fixed amount of timet 1 , then

Michael Luby; Alistair Sinclair; David Zuckerman

1993-01-01

230

Evaluating Las Vegas Algorithms: Pitfalls and Remedies  

Microsoft Academic Search

Stochastic search algorithms are among the most sucessful approaches for solving hard combinato- rial problems. A large class of stochastic search approaches can be cast into the framework of Las Vegas Algorithms (LVAs). As the run-time be- havior of LVAs is characterized by random vari- ables, the detailed knowledge of run-time distri- butions provides important information for the analysis of

Holger H. Hoos; Thomas Stützle

1998-01-01

231

Las Brigadas Internacionales: una aproximación historiográfica  

Microsoft Academic Search

El artículo consta de dos apartados. Al primero le hemos dado un enfoque cronològico, distinguiendo tres etapas: a) las obras publicadas por ambos bandos con finalidad propagandistica durante la Guerra Civil; b) de los anos cuarenta hasta los ochenta, en que observamos que se camina desde la vision mítica hasta los primeros estúdios críticos; c) a partir de 1996, con

Manuel Requena Gallego

2004-01-01

232

Ballon de sondage d'atmosphère à délestage automatique modèles de calcul pour sa réalisation et la simulation de son évolution  

NASA Astrophysics Data System (ADS)

A partir d'un modèle théorique d'étude des contraintes et déformations des enveloppes de ballons, de révolution autour d'un axe vertical, la forme dite ``cylindrique'' a été mise en évidence. La stabilité de cette forme permet d'utiliser les variations de tension d'une Liaison Inter Polaire (LIP) pour actionner un dispositif de délestage qui arrête ainsi la descente du ballon. La méthode de simulation permettant le calcul du ballon et de son évolution dans une atmosphère est présentée dans sa généralité.

Regipa, Robert

233

Early use of corrective lenses in Spanish colonies of the Americas including parts of the future United States: reference to Viceroy Luis de Velasco (the Son).  

PubMed

We discuss many aspects of a reproduction of a formal painting from the XVIth century. It is a portrait of Viceroy of New Spain Luis de Velasco, El Joven or Hijo (son-see text), found at the Museum of the Pecos National Monument (near Pecos and Santa Fe, New Mexico). A formal portrait of each Viceroy of New Spain was created, and this one was painted during de Velasco's first term as Viceroy (1590 to 1595 AD). In this depiction, he is seen wearing spectacles. To our knowledge, this is the first known reference suggesting the introduction of this form of visual correction in the Spanish Colonies in the Americas and in the future United States. There are three known portraits of Luis de Velasco (son): One painting, which included his father and significant others, hangs in the Colegiata (a small cathedral) de San Luis near Valladolid, Spain. In this portrayal, he was shown as a young man without a spectacle correction. And there are two viceregal portraits (Term 1, 1590 to 1595; Term 2, 1607 to 1611) in which he wears the same spectacle correction (these are located in Mexico City). PMID:14560118

Calvo, Maria; Enoch, Jay M

2003-10-01

234

Sexy sons from re-mating do not recoup the direct costs of harmful male interactions in the Drosophila melanogaster laboratory model system.  

PubMed

The empirical foundation for sexual conflict theory is the data from many different taxa demonstrating that females are harmed while interacting with males. However, the interpretation of this keystone evidence has been challenged because females may more than counterbalance the direct costs of interacting with males by the indirect benefits of obtaining higher quality genes for their offspring. A quantification of this trade-off is critical to resolve the controversy and is presented here. A multi-generation fitness assay in the Drosophila melanogaster laboratory model system was used to quantify both the direct costs to females due to interactions with males and indirect benefits via sexy sons. We specifically focus on the interactions that occur between males and nonvirgin females. In the laboratory environment of our base population, females mate soon after eclosion and store sufficient sperm for their entire lifetime, yet males persistently court these nonvirgin females and frequently succeed in re-mating them. Females may benefit from these interactions despite direct costs to their lifetime fecundity if re-mating allows them to trade-up to mates of higher genetic quality and thereby secure indirect benefits for their offspring. We found that direct costs of interactions between males and nonvirgin females substantially exceeded indirect benefits through sexy sons. These data, in combination with past studies of the good genes route of indirect benefits, demonstrate that inter-sexual interactions drive sexually antagonistic co-evolution in this model system. PMID:16135126

Orteiza, N; Linder, J E; Rice, W R

2005-09-01

235

Parents think their sons are brighter than their daughters: sex differences in parental self-estimations and estimations of their children's multiple intelligences.  

PubMed

In this study, 156 participants, predominantly White British adults (M age = 44.3 years) rated themselves on overall IQ and on H. Gardner's (1983) 7 intelligence subtypes. Parents (n = 120) also estimated the intelligence of their children. Men's self-estimates were significantly higher than women's (110.15 vs. 104.84). Participants thought their verbal, mathematical, and spatial intelligence scores were the best indicators of their own overall intelligence. Parents estimated that their sons had significantly higher IQs than their daughters (115.21 vs. 107.49). Self-estimates and estimates of children's multiple intelligences were higher for men and sons, significantly so for logical-mathematical and spatial intelligence. Parents rated 2nd-born daughters as having significantly higher verbal and musical intelligence than their male counterparts. Higher parental IQ self-estimates corresponded with higher IQ estimates for children. Results for 1st-born children were clearest and showed the most significant differences. The findings are interpreted in terms of sociocultural and familial influences and the possibility of actual sex differences in particular abilities. PMID:11952262

Furnham, Adrian; Reeves, Emma; Budhani, Salima

2002-03-01

236

Mammalian homologues of the Drosophila son of sevenless gene map to murine chromosomes 17 and 12 and to human chromosomes 2 and 14, respectively  

SciTech Connect

Activating mutations in the ras genes are commonly found in a wide range of human tumors. The authors recently cloned two mammalian genes, Son of sevenless 1 (mSos1) and Son of sevenless 2 (mSos2), whose protein products appear to be important positive regulators of ras proteins. Given the proposed role of Sos proteins in ras regulation, and the frequent occurrence of activated ras alleles in tumor cells, they were interested in determining whether the Sos genes may also be activated inappropriately by DNA rearrangement in tumor cells. To investigate this possibility, they have determined the chromosomal locations of both the mouse and the human Sos1 and Sos2 genes, using a combination of genetic linkage analysis and in situ hybridization to chromosomal spreads. They find that the murine Sos1 and Sos2 genes map to chromosomes 17E and 12C3.3-D and their human counterparts to chromosomes 2p21-2p2 and 14q21, respectively. Neither the human nor the mouse Sos loci map close to known mutations or to regions showing consistent karyotypic abnormalities in tumor cells. 23 refs., 3 figs.

Webb, G.C. (Queen Elizabeth Hospital, Woodville (Australia)); Jenkins, N.A.; Largaespada, D.A.; Copeland, N.G. (Mammalian Genetics Lab., Frederick, MD (United States)); Fernandez, C.S.; Bowtell, D.D.L. (Univ. of Melbourne, Parkville (Australia))

1993-10-01

237

Deletion involving D15S113 in a mother and son without Angelman syndrome: Refinement of the Angelman syndrome critical deletion region  

SciTech Connect

Deletions of 15q11-q13 typically result in Angelman syndrome when inherited from the mother and Prader-Willi syndrome when inherited from the father. The critical deletion region for Angelman syndrome has recently been restricted by a report of an Angelman syndrome patient with a deletion spanning less than 200 kb around the D15S113 locus. We report here on a mother and son with a deletion of chromosome 15 that includes the D15S113 locus. The son has mild to moderate mental retardation and minor anomalies, while the mother has a borderline intellectual deficit and slightly downslanting palpebral fissures. Neither patient has the seizures, excessive laughter and hand clapping, ataxia or the facial anomalies which are characteristic of Angelman syndrome. The proximal boundary of the deletion in our patients lies between the D15S10 and The D15S113 loci. Our patients do not have Angelman syndrome, despite the deletion of the D15S113 marker. This suggests that the Angelman syndrome critical deletion region is now defined as the overlap between the deletion found in the previously reported Angelman syndrome patient and the region that is intact in our patients. 28 refs., 6 figs.

Michaelis, R.C.; Skinner, S.A.; Lethco, B.A. [Greenwood Genetic Center, SC (United States)] [and others

1995-01-02

238

Gender-assortative waist circumference in mother-daughter and father-son pairs, and its implications. An 11-year longitudinal study in children (EarlyBird 59).  

PubMed

WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT: Body mass index (BMI) is gender assortative (mother-daughter, father-son) in contemporary families. The impact of obesity on the metabolic health of contemporary children is nevertheless a correlate of their own weight, not that of their parents. Waist circumference (WC; abdominal fat) is a better predictor of metabolic risk than BMI. Abdominal fat has two components - visceral, which increases metabolic risk, and subcutaneous, which is neutral or even protects. WHAT THIS STUDY ADDS: WC, like BMI, is gender assortative. Daughters derive their girth from their mother and sons from their father. Subcutaneous fat accounts for the gender-assortative link with parental WC, but not the surrogate we used for visceral fat (WC|BMI ). Insulin resistance, on the other hand, is a function of WC|BMI but not of subcutaneous fat. Given appropriate standards, WC|BMI may help refine the predictive value of WC for metabolic risk in children. BACKGROUND/OBJECTIVES: Body mass index (BMI) is reportedly gender assortative (mother-daughter, father-son) in contemporary children. We investigated the corresponding transmission of waist circumference (WC) and its implications. METHODS: We measured parental WC at baseline and WC, height, weight and para-umbilical skin-fold (USF) annually in their offspring from 5 to 15 years (n?=?223 trios). Parents were deemed normal metabolic risk (NR) or high risk (HR) according to World Health Organization (WHO) cut-points for WC (mothers 80?cm, fathers 94?cm). The residual from WC adjusted for BMI (WC|BMI ) was used as a surrogate for excess intra-abdominal fat, and its association with insulin resistance (HOMA2-IR) was sought. RESULTS: WC and USF were both gender assortative, while WC|BMI was not. WC was greater by 1.62?cm (P?sons) of HR compared with those of NR mothers, and by 1.32?cm (P?son (but not father-daughter) pairings. No such differences could be demonstrated for WC|BMI . A standard deviation score 1(SDS) change in WC|BMI , independent of BMI, was associated with a 7.14% change in IR in girls (P?

Mostazir, M; Jeffery, A; Voss, L; Wilkin, T

2013-04-10

239

The Man and Las Tablas de Daimiel  

Microsoft Academic Search

\\u000a Human settlement in Las Tablas de Daimiel started 3600 years BP and developed into a rich culture of hunters, fishermen and\\u000a plant and animal gatherers that survived until the last third of the twentieth century. Very recently, unsustainable economic\\u000a development in the catchment resulted in strong pollution and depletion of water resources, forcing people to leave, impairing\\u000a the wetland ecological

M. Alvarez-Cobelas; S. Cirujano; A. Meco

240

Pressure leaching las cruces copper ore  

NASA Astrophysics Data System (ADS)

A hydrometallurgical process was developed for treating the Las Cruces massive sulfide-ore deposit located near Seville, Spain. A two-stage countercurrent leach process, consisting of an atmospheric leach and a pressure leach, was developed to effectively leach copper from the copper-bearing minerals and to generate a solution suitable for the subsequent solvent-extraction and copper-electrowinning operations. The results of batch and continuous miniplant tests are presented.

Berezowsky, R. M.; Xue, T.; Collins, M. J.; Makwana, M.; Barton-Jones, I.; Southgate, M.; Maclean, J. K.

1999-12-01

241

Assisted Living for Our Parents: A Son’s Journey  

Microsoft Academic Search

[Excerpt] I wrote this book to help aging parents and their adult children understand the problems and risks in choosing an ALF, with the hope that they might avoid some of the experiences my mother and I had. My story echoes many other people's stories. But of course I don't pretend that what I will describe happens to everyone entering

Daniel Jay Baum

2007-01-01

242

Geologic Studies for Seismic Hazard Assessment, Las Positas Fault Zone.  

National Technical Information Service (NTIS)

Since its existence was reported, the northeast trending Las Positas Fault Zone has been the subject of controversy. Because of proximity of the Las Positas Fault to Lawrence Livermore National Laboratory (LLNL) facilities, geologists from the Laboratory ...

D. W. Carpenter R. J. Clark

1982-01-01

243

Regulation of las and rhl Quorum Sensing in Pseudomonas aeruginosa  

Microsoft Academic Search

The production of several virulence factors by Pseudomonas aeruginosa is controlled according to cell density through two quorum-sensing systems, las and rhl. The las system is comprised of the transcriptional activator protein LasR and of LasI, which directs the synthesis of the autoinducer PAI-1. Similarly, the rhl system consists of the transcriptional activator protein RhlR and of RhlI, which directs

EVERETT C. PESCI; JAMES P. PEARSON; PATRICK C. SEED; BARBARA H. IGLEWSKI

1997-01-01

244

String theory duals for mass-deformed SO(N) and USp(2N) N=4 supersymmetric Yang-Mills theories  

NASA Astrophysics Data System (ADS)

We generalize the results of Polchinski and Strassler regarding the N=1 preserving mass deformation of N=4 SU(N) supersymmetric Yang-Mills (SYM) theories and its string theory dual to SO(N) and USp(2N) gauge groups. The string theory duals involve 5-branes wrapped on RP2. In order to match with the field theory classification of vacua, the 3-brane charge carried by such 5-branes must be shifted by a half, and this follows from a conjectured generalization of results of Freed and Witten. Our results provide an elegant physical picture for the classification of classically massive vacua in the mass-deformed N=4 theories.

Aharony, Ofer; Rajaraman, Arvind

2000-11-01

245

Acompañamiento de la ciencia colombiana a las políticas públicas  

Microsoft Academic Search

Este artículo analiza el acompañamiento que la investigación científica promovida por COLCIENCIAS ha realizado a las políticas públicas en Colombia, en especial las referidas al bienestar social. A través de un doble análisis cualitativo y cuantitativo, se evalúa la distribución y la cobertura temática de algunas de las investigaciones realizadas entre 1990 y 2002, en los diversos tópicos asociados con

Sergio Riaga; Ana María Villa; María Velasco

2004-01-01

246

LA INFLUENCIA DE LA CONFIANZA Y EL COMPROMISO SOBRE LAS FUNCIONES CREADORAS DE VALOR EN LAS RELACIONES COMERCIALES ENTRE EMPRESAS  

Microsoft Academic Search

El propósito de este trabajo es estudiar el efecto de la confianza y el compromiso sobre la creación de valor para el cliente. Para ello primero se examinan las distintas funciones creadoras de valor en las relaciones comerciales entre empresas. A continuación se plantea el modelo teórico que conecta la confianza y el compromiso con las funciones creadoras de valor.

J. A. López Sánchez; M. L Santos Vijande; J. A. Trespalacios Gutiérrez

2008-01-01

247

Advanced Airborne CO2 LAS System  

NASA Astrophysics Data System (ADS)

A unique airborne Laser Absorption Spectroscopy (LAS) system has been developed by ITT Space Systems, LLC to address the needs of the National Research Council Decadal Survey Tier 2 mission for Active Sensing of CO2 Emissions over Nights, Days and Seasons (ASCENDS). This instrument has undergone multiple airborne field tests in cooperation with our partners at NASA Langley Research Center (LaRC). The instrument was built largely with off-the-shelf components and uses high reliability telecom components, including lasers, modulators and fiber amplifiers as the transmitter. Multiple wavelengths are transmitted simultaneously from a single collimator and the return signal is collected by a simple 8” telescope that is fiber coupled to a HgCdTe APD. The analog signal is sampled with a high resolution scope card housed in a National Instruments PXI chassis and the digitized signal is then passed through our custom-built software-based lock-in processing system which allows separation of the signals from the individual wavelengths. The separated signals are then used in the standard Differential Absorption Lidar (DIAL) relations to determine the integrated column differential optical depth. This presentation will give a detailed overview of this multi-frequency, single-beam, synchronous lock-in LAS instrument including the basic methodology of the measurement. Recent improvements in the lock-in methodology designed to eliminate the effects of multi- path fading and frequency dependence of the electronic components will also be discussed.

Dobler, J. T.; Braun, M. G.; McGregor, D. P.; Erxleben, W. H.; Browell, E. V.; Harrison, F. W.

2009-12-01

248

Secondary phase formation and the microstructural evolution of surface layers during vapor phase alteration of the French SON 68 nuclear waste glass at 200{degrees}C  

SciTech Connect

The SON 68 inactive {open_quotes}R7T7{close_quotes} composition is the French reference glass for the LWR nuclear waste glass. Vapor phase alteration was used to accelerate the reaction progress of glass corrosion and to develop the characteristic suite of secondary, alteration phases. Extensive solid-state characterization (AEM/SEM/HRTEM) was completed on six inactive R7T7 waste glasses which were altered in the presence of saturated water vapor (200{degrees}C) for 91, 241, 908, 1000, 1013, and 1021 days. The AEM samples were examined in cross-section (lattice-fringe imaging, micro-diffraction, and quantitative thin-film EDS analysis). The glass monoliths were invariably covered with a thin altered rind. The layer became thicker with time: 0.5 {mu}m for 22 days; 4 {mu}m for 91 days; 6 {mu}m for 241 days; 10 {mu}m for 908 days; 26 {mu}m for 1013 days; and <35 {mu}m for 1021 days. The composite alteration layer of the SON 68 samples is at least four time less thick than that of the SRL 131 glass composition. Six distinctive zones, based on phase chemistry and microstructure, were distinguished within the well-developed surface layers. Numerous crystalline phases such as analcime, tobermorite, apatite, and weeksite were identified on the surfaces of the reacted glasses as precipitates. Two crystalline phases, Ag{sub 2}TeO{sub 3} and (Ca,Sr)Mo{sub 3}O{sub 9}(OH){sub 2}, were found within the inner zones of surface layers, and they must have nucleated in situ, indicating that Ag, Te, Sr, and Mo can be retained within the surface layer. The majority of the surface layer volume is composed of two morphologically and chemically different structures: one consists of well-crystallized fibrous smectite aggregates occurring along with cavities, the A-domain; and the other consists of poorly-crystallized regions containing needle-like smectite (montmorillonite) crystallites, a silica-rich amorphous matrix, and possibly ZrO{sub 2} particles, the B-domain.

Gong, W.L.; Ewing, R.C.; Wang, L.M. [Univ. of New Mexico, Albuquerque, NM (United States)] [and others

1995-12-31

249

Las Vegas Basin Seismic Response Project: Preliminary Results From Seismic Refraction Experiments, Las Vegas, NV.  

NASA Astrophysics Data System (ADS)

In May and September 2002, seismic refraction data were acquired in the Las Vegas basin. Located in the southern Basin and Range province, the cities of Las Vegas, North Las Vegas, and Henderson sit atop a fault-bounded basin with a depth of up to 5 km and basin dimensions of roughly 60 km wide (east-west) by 50 km in length (north-south). Previous isostatic gravity, seismic reflection, and aeromagnetic studies indicate that a series of sub-basins exist beneath the unconsolidated basin fill, with the deepest sub-basin occurring 5 km west of the fault block bounding the eastern edge of the basin (Frenchman Mountain). The basin is significantly deeper along its northern extremity, following the path of the fault block bounding the northern edge of the basin (Las Vegas Valley Shear Zone), and along the western edge of Frenchman Mountain. Recent, paleoseismic studies have indicated that faults in the Las Vegas region have the potential for an earthquake of M6.5 to 7.0. It is estimated that a M6.9 earthquake in the basin could produce about 11 billion dollars in damage and a significant number of deaths and/or injuries. In addition, an equivalent or larger event in the Death Valley fault zone, 150 km distance, would also be devastating to the metropolitan area of approximately 1.5 million residents. Therefore, it is essential to understand the seismic hazard posed to the Las Vegas region. This project is part of a larger collaborative effort to characterize the basin and its response to ground shaking. The University of Nevada, Las Vegas with assistance from the University of Texas at El Paso, students from UNLV and UTEP, volunteers from the community and several students from Centennial High school deployed 432 portable seismic recorders ("Texans") throughout the valley. Shot point locations were located at three quarries in the valley, one to the north, one to the east and one to the southwest. The profiles cross the Las Vegas Valley Shear zone as well as a prominent NW/SE trending step in the basin floor across which the basement drops from 2 to 4 km in depth. In addition, the profiles cross several Quaternary fault scarps, which have recently been identified as tectonic in origin. Preliminary analyses of the seismic refraction data indicate that the basin has an average P-wave velocity of 4.5 km/s and is in agreement with the estimated basin depths from isostatic gravity studies (2 to 5 km depth). Both tomographic inversion and forward modeling techniques are being used to analyze these data. These data will be used to produce a velocity model of the basin and image the basin/bedrock contact. In addition, these data will be integrated into a community model, which is being produced by the Las Vegas Basin Seismic Response working group to further assess the site response of the basin.

Zaragoza, S. A.; Snelson, C. M.; Harder, S. H.; Kaip, G.; Luke, B.; Buck, B. J.; Hanson, A. D.

2002-12-01

250

Maternal smoking during pregnancy and testicular cancer in the sons: a nested case-control study and a meta-analysis.  

PubMed

Some large ecological studies have noted a significant association of testicular cancer (TC) with maternal smoking during pregnancy, while several more controlled studies have been negative. It has been difficult to obtain reliable data on exposure because of the long lag time to cancer diagnosis. We performed a case-control study nested within Finnish, Swedish and Icelandic maternity cohorts exploiting early pregnancy serum samples to evaluate the role of maternal smoking in the risk of TC in the offspring. After reviewing the literature, we also performed a meta-analysis of published studies. For each index mother of the TC patient, three to nine matched control mothers with a cancer-free son born at the same time as the TC case were identified within each cohort. First trimester sera were retrieved from the 70 index mothers and 519 control mothers and were tested for cotinine level by a novel HPLC-MS-MS method developed. No statistically significant association between maternal cotinine level and risk of TC in the offspring was found (OR 0.68; 95% CI 0.35, 1.34). This is the first study based on individual exposure measurements. Its results agree with our meta-analysis of seven previous epidemiological studies (total number of 2149 cases, 2762 controls) using indirect exposure assessment (OR 1.0; 95% CI 0.88, 1.12). PMID:19231156

Tuomisto, Jouko; Holl, Katsiaryna; Rantakokko, Panu; Koskela, Pentti; Hallmans, Göran; Wadell, Göran; Stattin, Pär; Dillner, Joakim; Ogmundsdottir, Helga M; Vartiainen, Terttu; Lehtinen, Matti; Pukkala, Eero

2009-02-21

251

"In a black hole": the (negative) space between longing and dread: Home-based psychotherapy with a traumatized mother and her infant son.  

PubMed

This paper offers fragments from the first year of a home-based mother-baby psychotherapy, in which I attempted to help a traumatized and dissociated mother to emotionally engage with her infant son. The treatment was organized in part around certain developmental objectives common to both attachment and psychoanalytic theory. These include: The ability to name and metabolize feelings, to evoke a soothing maternal introject, and to relate to the partner's mind as a separate, understandable center of initiative and intention. In addition, attachment theory, with its emphasis on the critical psychobiological role of containing fear and distress in infancy, was a useful guide in formulating the treatment. The paper reviews research findings on mother-infant pairs described as frightened-disorganized, discusses some of the challenges encountered in home-based mother-infant psychotherapy and then discusses the case of Mary and John. The case illustrates how mother-infant psychotherapy may interrupt the intergenerational transmission of disorganized attachment by working within the couple to name, metabolize and flexibly respond to painful, dissociated or frightening experiences. PMID:16649677

Arons, Judith

2005-01-01

252

Sex ratio and proportion of affected sons in sibships with X-chromosomal recessive traits: maximum likelihood estimation in truncated multinomial distributions.  

PubMed

If mothers are carriers of a recessive male sex-linked disorder, their children may include females, healthy males and affected males. The composition of the possible sibships follows a multinomial distribution. If the mothers are diagnosed as carriers independently of their offspring, then the distributions are not truncated, but if they are classified as carriers after the birth of at least one affected son, the distributions are truncated. In order to avoid ascertainment bias, the statistical analyses of the corresponding data must differ. We present procedures for estimation in both the untruncated and the truncated case. The formulae obtained are applied to family data for X-chromosomal recessive retinoschisis (RS) from the region of Satakunta in southwestern Finland. Earlier studies indicated that, among the offspring of RS carriers, the sex ratio was increased. In our model, therefore, we include both the proportion of males and the proportion of affected individuals among the males. The sex ratio was significantly increased (131.0), but the proportion of affected males was slightly lower than expected (42.5%). RS seems to be the only known genetic disorder in which the offspring of carriers of the mutation include a statistically significant surplus of males. PMID:12435881

Fellman, Johan; Eriksson, Aldur W; Forsius, Henrik

2002-01-01

253

Adsorption of linear alkylbenzene sulfonate (LAS) on soils  

Microsoft Academic Search

Experimental measurements of the adsorption of linear alkylbenzene sulfonate (LAS) on soils were made at 25°C using a continuous adsorption apparatus. The adsorption of LAS on natural soils could be divided into two stages: linear and exponentially increasing isotherms. At low LAS concentration (< 90 ?g ml?1), the adsorption isotherms were linear and Kd was among 1.2 to 2.0. At

Ziqing Ou; Ayfer Yediler; Yaowu He; Liangqing Jia; Antonius Kettrup; Tieheng Sun

1996-01-01

254

Mid- to Late Holocene climate development in Central Asia as revealed from multi-proxy analyses of sediments from Lake Son Kol (Kyrgyzstan)  

NASA Astrophysics Data System (ADS)

A mid-Holocene shift from predominantly wet to significantly drier climate conditions, attributed to the weakening of the Asian summer monsoon (ASM), is documented in numerous palaeoclimate records from the monsoon-influenced parts of Asia, e.g. the Tibetan Plateau and north- and southeastern China. In contrast, Holocene climate development in the arid regions of mid-latitude Central Asia, located north and northwest of the Tibetan Plateau, is less well-constrained but supposed to have been influenced by a complex interaction between the mid-latitude Westerlies and the ASM. Hence, well-dated and highly resolved palaeoclimate records from Central Asia might provide important information about spatio-temporal changes in the regional interplay between Westerlies and ASM and thus aid the understanding of global climate teleconnections. As a part of the project CADY (Central Asian Climate Dynamics), aiming at reconstructing past climatic and hydrological variability in Central Asia, several sediment cores were recovered from alpine Lake Son Kol (41° 48'N, 75° 12'E, 3016 m a. s. l.) in the Central Tian Shan of Kyrgyzstan. A radiocarbon-dated sediment sequence of 154.5 cm length, covering approximately the last 6000 years, was investigated by using a multi-proxy approach, including sedimentological, (bio)geochemical, isotopic and micropalaeontological analyses. Preliminary proxy data indicate hydrologically variable but predominantly wet conditions until ca. 5100 cal. a BP, characterized by the deposition of finely laminated organic-carbonatic sediments. In contrast to monsoonal Asia, where a distinct trend towards drier conditions is observed since the mid-Holocene, the hydrologically variable interval at Lake Son Kol was apparently followed by an only short-term dry episode between ca. 5100 and 4200 cal. a BP. This is characterized by a higher ?D of the C29 n-alkanes, probably reflecting increased evapotranspiration. Also pollen, diatom and ostracod data point towards drier climate conditions. Higher ?15N values during this period may also reflect increased evaporation but could also be related to dust input of NOx, being in agreement with high amounts of fine-grained minerogenic material. Further periods of higher ?15N values and contents of fine-grained minerogenic material occurred at 3600-3000 and 2000-1600 cal. a BP. However, as biogeochemical data indicate no further distinct dry episodes since about 4200 cal. a BP, these intervals most probably reflect increased dust deposition. Finally, a trend towards wetter climate conditions can be observed during the last ca. 1500 years, reflected by high ostracod and diatom diversity and (bio)geochemical data. The absence of a pronounced drying trend since the mid-Holocene, as observed in monsoonal Asia, is largely consistent with results from other regional palaeoclimate records and might reflect the predominant influence of the strengthening mid-latitude Westerlies on regional climate since this time.

Lauterbach, Stefan; Dulski, Peter; Gleixner, Gerd; Hettler-Riedel, Sabine; Mingram, Jens; Plessen, Birgit; Prasad, Sushma; Schwalb, Antje; Schwarz, Anja; Stebich, Martina; Witt, Roman

2013-04-01

255

Analytical electron microscopy study of surface layers formed on the french SON68 nuclear waste glass during vapor hydration at 200{degree}C.  

SciTech Connect

Extensive solid-state characterization (AEM/SEM/HRTEM) was completed on six SON68 (inactive R7T7) waste glasses which were altered in the presence of saturated water vapor (200{sup o}C) for 22, 91, 241, 908, 1000, 1013, and 1021 days. The samples were examined by AEM in cross-section (lattice-fringe imaging, micro-diffraction, and quantitative thin-film EDS analysis). The glass monoliths were invariably covered by a thin altered rind, and the surface layer thickness increased with increasing time of reaction, ranging from 0.5 to 30 {mu}m in thickness. Six distinctive zones, based on phase chemistry and microstructure, were distinguished within the well-developed surface layers. Numerous crystalline phases such as analcime, gyrolite, tobermorite, apatite, and weeksite were identified on the surfaces of the reacted glasses as precipitates. The majority of the surface layer volume was composed of two basic structures that are morphologically and chemically distinct: The A-domain consisted of well-crystallized fibrous smectite aggregates; and the B-domain consisted of poorly-crystallized regions containing smectite, possibly montmorillonite, crystallites and a ZrO{sub 2}-rich amorphous silica matrix. The retention of the rare-earth elements, Mo, and Zr mostly occurred within the B-domain; while transition metal elements, such as Zn, Cr, Ni, Mn, and Fe, were retained in the A-domain. The element partitioning among A-domains and B-domains and recrystallization of the earlier-formed B-domains into the A-domain smectites were the basic processes which have controlled the chemical and structural evolution of the surface layer. The mechanism of surface layer formation during vapor hydration are discussed based on these cross-sectional AEM results.

Gong, W. L.; Wang, L. M.; Ewing, R. C.; Vernaz, E.; Bates, J. K.; Ebert, W. L.; Chemical Engineering; Univ. of New Mexico; CEA-VALRHO

1998-04-01

256

Las Cumbres Observatory Global Telescope Network  

NASA Astrophysics Data System (ADS)

Las Cumbres Observatory Global Telescope (LCOGT) is a young organization dedicated to time-domain observations at optical and (potentially) near-IR wavelengths. To this end, LCOGT is constructing a worldwide network of telescopes, including the two 2 m Faulkes telescopes, as many as 17 × 1 m telescopes, and as many as 23 × 40 cm telescopes. These telescopes initially will be outfitted for imaging and (excepting the 40 cm telescopes) spectroscopy at wavelengths between the atmospheric UV cutoff and the roughly 1-?m limit of silicon detectors. Since the first of LCOGT''s 1 m telescopes are now being deployed, we lay out here LCOGT''s scientific goals and the requirements that these goals place on network architecture and performance, we summarize the network''s present and projected level of development, and we describe our expected schedule for completing it. In the bulk of the paper, we describe in detail the technical approaches that we have adopted to attain desired performance. In particular, we discuss our choices for the number and location of network sites, for the number and sizes of telescopes, for the specifications of the first generation of instruments, for the software that will schedule and control the network''s telescopes and reduce and archive its data, and for the structure of the scientific and educational programs for which the network will provide observations.

Brown, T. M.; Baliber, N.; Bianco, F. B.; Bowman, M.; Burleson, B.; Conway, P.; Crellin, M.; Depagne, É.; De Vera, J.; Dilday, B.; Dragomir, D.; Dubberley, M.; Eastman, J. D.; Elphick, M.; Falarski, M.; Foale, S.; Ford, M.; Fulton, B. J.; Garza, J.; Gomez, E. L.; Graham, M.; Greene, R.; Haldeman, B.; Hawkins, E.; Haworth, B.; Haynes, R.; Hidas, M.; Hjelstrom, A. E.; Howell, D. A.; Hygelund, J.; Lister, T. A.; Lobdill, R.; Martinez, J.; Mullins, D. S.; Norbury, M.; Parrent, J.; Paulson, R.; Petry, D. L.; Pickles, A.; Posner, V.; Rosing, W. E.; Ross, R.; Sand, D. J.; Saunders, E. S.; Shobbrook, J.; Shporer, A.; Street, R. A.; Thomas, D.; Tsapras, Y.; Tufts, J. R.; Valenti, S.; Vander Horst, K.; Walker, Z.; White, G.; Willis, M.

2013-09-01

257

El impacto de las reformas estructurales en la agricultura colombiana  

Microsoft Academic Search

Colombia, como la mayor parte de los países latinoamericanos, emprendió un ambicioso proceso de liberalización y reformas al clarear la década de los años noventa, el cual cobijó al sector agropecuario. Las reformas en el agro tuvieron tres períodos: desde el segundo semestre de 1990 hasta finales de 1992 se pusieron en marcha la mayoría de las reformas iniciales, de

Santiago Perry

2000-01-01

258

GIS Methodology for Quantifying Channel Change in Las Vegas, Nevada  

Microsoft Academic Search

This study applies spatial analyses to examine the consequences of accelerated urban expansion on a hydrologic system over a period of 24 years. Three sets of historical aerial photos are used in a GIS analysis to document the geomorphic history of Las Vegas Wash, which drains the rapidly growing Las Vegas urban area in southern Nevada. New spatial techniques are

Susan E. Buckingham; John W. Whitney

2007-01-01

259

A systematic review and meta-analysis of perinatal variables in relation to the risk of testicular cancer--experiences of the son  

PubMed Central

Background We undertook a systematic review and meta-analysis of perinatal variables in relation to testicular cancer risk, with a specific focus upon characteristics of the son. Methods Literature databases Scopus, EMBASE, PubMed and Web of Science were searched using highly sensitive search strategies. Of 5865 references retrieved, 67 articles met the inclusion criteria, each of which was included in at least one perinatal analysis. Results Random effects meta-analysis produced the following results for association with testicular cancer risk: birth weight [per kilogram, odds ratio (OR)?=?0.94, 95% confidence interval (CI) 0.88–1.01, I2?=?12%], low birth weight (OR?=?1.34, 95% CI 1.08–1.67, I2?=?51%), high birth weight (OR?=?1.05, 95% CI 0.96–1.14, I2?=?0%), gestational age (per week, OR?=?0.95, 95% CI 0.92–0.98, I2?=?38%; low vs not, OR?=?1.31, 95% CI 1.07–1.59, I2?=?49%), cryptorchidism (OR?=?4.30, 95% CI 3.62–5.11, I2?=?44%), inguinal hernia (OR?=?1.63, 95% CI 1.37–1.94, I2?=?38%) and twinning (OR?=?1.22, 95% CI 1.03–1.44, I2?=?22%). Meta-analyses of the variables birth length, breastfeeding and neonatal jaundice did not provide evidence for an association with testicular cancer risk. When low birth weight was stratified by data ascertainment (record/registry vs self-report), only the category of self-report was indicative of an association. Meta-regression of data ascertainment (record/registry vs self-report) inferred that record-/registry-based studies were less supportive of an association with gestational age (per week?=?0.97, 95% CI 0.94–1.00, I2?=?29%; low vs not?=?1.08, 95% CI 0.91–1.28, I2?=?32%). Conclusion In conclusion, this systematic review and meta-analysis finds evidence that cryptorchidism, inguinal hernia and twinning, and tentative evidence that birth weight and gestational age, are associated with risk of testicular cancer.

Cook, Michael B; Akre, Olof; Forman, David; Madigan, M Patricia; Richiardi, Lorenzo; McGlynn, Katherine A

2010-01-01

260

Investigations on geomagnetic secular variation anomalies through tectonomagnetic monitoring in the seismoactive zone of the Narmada-Son Lineament, Central India  

NASA Astrophysics Data System (ADS)

Data from repeated geomagnetic observations at exactly same location on the five profiles i.e. Katangi-Mandla (AA'), Mandla-Lakhnadon (BB'), Lakhnadon-Narsimhapur (CC'), Narsimhapur-Jabalpur (DD') and Jabalpur-Seoni (EE') have revealed secular variation of the total geomagnetic field in the tectonically/seismically active zone of the Narmada-Son Lineament (NSL), Central India. The seismicity in NSL, associated with the activation of boundary fault near Jabalpur, might have been responsible for the release of stress accumulated due to continuous northward movement of the Indian plate. The external magnetic field contributions (ionospheric/magnetospheric currents) as well as internal (secular trend of main field due to Earth's core electric currents) have been eliminated due to the operation of the reference base station within study area at Seismic Observatory Jabalpur. Proton Precession Magnetometers (PPMs) with sensitivity 0.1 nT were used simultaneously for measuring the total geomagnetic field intensity at the repeated-survey stations and reference station. The survey sites were visited annually wherein seven cycles of repeated observations were performed from 2003 to 2009. The simple difference method was used in data analysis and the residuals have been calculated as secular variations of the total geomagnetic field with values ranging from ±0.1 nT/yr to ±9.5 nT/yr at different stations. However, measurable seismic activity was not registered during the repeated survey period. It is proposed that secular changes originate from stress and tension on the NSL fault system and crustal blocks as a tectonomagnetic effect. However, the Geomagnetic Depth Sounding (GDS) experiment in Jabalpur area revealed high electrical conductivity anomaly (Satpura conductor) which has been interpreted due to fluids/saline water in the crust. There is a possibility for the fluids to flow through the porous rocks thereby generating electric currents to produce the electrokinetic effect, which may also have contributed to anomalies in the secular variation. The remarkable changes in the total intensity of the geomagnetic field observed on five profiles indicate the piezomagnetic and/or electrokinetic effect or, both these mechanisms seem to be operative for the secular variation anomalies in the seismoactive zone of NSL.

Waghmare, S. Y.

2009-12-01

261

ARTICULACIÓN DE LAS ORGANIZACIONES DE SEXOSERVIDORAS CON LAS POLÍTICAS DE SALUD EN MÉXICO: BARRIO DE LA MERCED 2003  

Microsoft Academic Search

1. Antecedentes El presente trabajo de investigación surge como respuesta a la inquietud de generar una perspectiva diferente que, además de explicar el fenómeno del sexoservicio y sus implicaciones en la salud, pueda determinar líneas de acción encauzadas al mejoramiento de las condiciones de vida y oportunidades objetivas en la obtención de servicios integrales de salud para las mujeres que

Manuel Enrique; Morales Santiago

262

Las denuncias que reciben las empresas: ¿se relacionan con la percepción de prestigio que poseen? Análisis en empresas argentinas  

Microsoft Academic Search

El trabajo tiene por objeto determinar a partir de un análisis no paramétrico utilizando el método de la r de Spearman, la existencia de una relación entre la percepción que el público tiene sobre las empresas y la cantidad de denuncias que reciben. El análisis efectuado se centra en el estudio de dos variables: el prestigio de las empresas, por

Fernando G. Torres

2008-01-01

263

Allegory in the parables of Jesus?: a comparison of the interpretive theories of C.H. Dodd and C.L. Blomberg : a case study, the places at the table, the great banquet and the prodigal son  

Microsoft Academic Search

Allegory in the Parables of Jesus? A Comparison ofthe Interpretive Theories of C.H. Dodd and C.L. Blomberg. A Case Study: The Places at the Table, the Great Banquet and the Prodigal Son In the modem era, C. H. Dodd (and other New Testament scholars) have argued that Jesus' parables generally have one main point. These critical scholars are reacting to

Aaron Mueller

2002-01-01

264

Fate of linear alkylbenzene sulfonate (LAS) in activated sludge plants.  

PubMed

Monitoring data were collected in a pilot-scale municipal activated sludge plant to assess the fate of the C12-homologue of linear alkyl benzene sulfonate (LAS-C12). The pilot-plant was operated at influent LAS-C12 concentrations between 2 and 12 mg l(-1) and at sludge retention times of 10 and 27 days. Effluent and waste sludge concentrations varied between 5 and 10 microg l(-1) and between 37 and 69 microg g(-1) VSS, respectively. In the sludge samples only 2-8% was present as dissolved LAS-C12, whereas the remaining 92-98% was found to be adsorbed to the sludge. In spite of this high degree of sorption, more than 99% of the LAS-C12 load was removed by biodegradation, showing that not only the soluble fraction but also the adsorbed fraction of LAS-C12 is readily available for biodegradation. Sorption and biodegradation of LAS-C12 were also investigated separately. Sorption was an extremely fast and reversible process and could be described by a linear isotherm with a partition coefficient of 3.2 l g(-1) volatile suspended solids. From the results of biodegradation kinetic tests it was concluded that primary biodegradation of LAS-C12 cannot be described by a (growth) Monod model, but a secondary utilisation model should be used instead. The apparent affinity of the sludge to biodegrade LAS-C12 increased when the sludge was loaded with higher influent concentrations of LAS-C12. PMID:14769410

Temmink, H; Klapwijk, Bram

2004-02-01

265

Estudio comparativo de las moléculas isovalentes de interés atmosférico CF3Cl y CF3Br y sus correspondientes halógenos aislados Cl y Br.  

NASA Astrophysics Data System (ADS)

Los estados Rydberg moleculares han suscitado en los últimos años un creciente interés entre los espectroscopistas experimentales, motivado en parte por el desarrollo de nuevas técnicas espectroscópicas capaces de investigar estos estados altamente excitados electrónicamente. Los procesos de fotoabsorción que implican estados Rydberg en los derivados halogenados del metano son de gran importancia, debido a su abundancia en la atmósfera y a sus implicaciones medioambientales. Por ello, la obtención de datos relativos a sus fuerzas de oscilador es de gran interés. En este trabajo se aborda el estudio de dichas propiedades para las moléculas isovalentes CF3Cl y CF3Br. Ambas moléculas presentan idéntica estructura electrónica para el estado fundamental por lo que se espera que sus espectros Rydberg presenten grandes similitudes, en ausencia de perturbaciones. Por ello y dada la escasez de datos relativos a fuerzas de oscilador, hemos establecido la corrección de nuestros resultados en base a las analogías esperadas en las intensidades espectrales correspondientes a transiciones análogas. Por otro lado, Novak y col. [1] han encontrado experimentalmente un marcado carácter atómico en el espectro correspondiente a estas moléculas, siendo muy similar a los de los átomos de Cl y Br. Por ello en el presente trabajo, además de establecer la comparación entre ambas moléculas hemos buscado las similitudes con sus respectivos halógenos. Los cálculos relativos a las especies moleculares se han realizado utilizando la Metodología Molécular de Orbítales de Defecto Cuántico (MQDO) [2], mientras que para el estudio de los átomos de Cl y Br se empleó la versión relativista del método (RQDO) [3].

Mayor, E.; Velasco, A. M.; Martín, I.; Lavín, C.

266

El impacto de las crisis de subsistencias de la década de 1850 en el País Vasco  

Microsoft Academic Search

Este artículo analiza las últimas crisis de subsistencias en el País Vasco antes de la construcción de los ferrocarriles. Distingue el impacto en las zonas productoras (de trigo y\\/o de maíz) y en las ciudades. En dos de éstas, a pesar de la imagen de paz social transmitida por las autoridades fueristas vascas, las subsistencias suscitaron movilizaciones populares, sólo en

Rafael Ruzafa Ortega

2004-01-01

267

Environmental behavior of linear alkylbenzene sulfonate (LAS) in aquatic ecosystem  

NASA Astrophysics Data System (ADS)

LAS degradation rate in Donghu Lake water under aerobic was much faster than under anaerobic condition. The half life of LAS in aerobic and anaerobic environment was 3.2 days and 57 days, respectively. The degradation rate at 25 27°C was approximately 20 times higher than that at 1.5 3.5 °C. In a laboratory model aquatic ecosystem, two stages of bioconcentration in fish, daphnia and snail were observed. The first stage, on second day exposure, resulted from accumulation of intact LAS, and the second stage, on 16th day exposure, was due to metabolites. The bioconcentration factor (BCF) of LAS was extremely low in the muscle of hybrid carp (0.64), but rather high (2485) in the gall bladder.

Zhang, Yongyuan; Tan, Yuyun; Korte, F.

1991-03-01

268

Revisión Previa a la Concesión de la Licencia para las ...  

Center for Biologics Evaluation and Research (CBER)

Text VersionPage 1. Revisión Previa a la Concesión de la Licencia para las Vacunas Preventivas DIAPOSITIVA 1 Esta presentación ... More results from www.fda.gov/downloads/biologicsbloodvaccines/internationalactivities

269

Current Target Industry Analysis: Las Vegas Metropolitan Area.  

National Technical Information Service (NTIS)

This is the second of three reports dealing with the Las Vegas MSA's economic development potential in support of an overall effort to prepare an environmental impact statement for the proposed underground nuclear waste storage facility at Yucca Mountain....

M. R. Boyle

1988-01-01

270

Fate of linear alkylbenzene sulfonate (LAS) in activated sludge plants  

Microsoft Academic Search

Monitoring data were collected in a pilot-scale municipal activated sludge plant to assess the fate of the C12-homologue of linear alkyl benzene sulfonate (LAS-C12). The pilot-plant was operated at influent LAS-C12 concentrations between 2 and 12mgl?1 and at sludge retention times of 10 and 27 days. Effluent and waste sludge concentrations varied between 5 and 10?gl?1 and between 37 and

H. Temmink; Bram Klapwijk

2004-01-01

271

Photocatalytic Treatment of Linear Alkylbenzene Sulfonate (LAS) in Water  

Microsoft Academic Search

The photocatalytic degradation of aqueous linear alkylbenzene sulfonate (LAS) was studied. Two different photocatalysts, Degussa P25 TiO2 and Hombikat UV 100 TiO2, were used to degrade aqueous linear alkylbenzene sulfonate in slurry batch photoreactors. For a 100 mg\\/L LAS solution based on first–order rate constants, the optimum photocatalyst loading for Degussa P25 TiO2 was 4.0 g\\/L, while for Hombikat UV

Mehrab Mehrvar; Sarah Hatfield Venhuis

2005-01-01

272

Visualizing Large Datasets with LAS and Google Earth  

NASA Astrophysics Data System (ADS)

As experiments and simulations in Earth System Science grow larger and more complex, dataset volumes are growing explosively. Web-based visualization and analysis of these datasets is becoming a challenge due to large amount of data and the limit of network bandwidth. The Live Access Server (LAS) is a highly configurable Web server designed to provide flexible access to visualization and analysis products generated from geo- referenced scientific datasets. In this presentation, we introduce a new capability of LAS for interactively visualizing large datasets by utilizing the view-based refresh queries of Google Earth and the automatic decimation ("striding") capabilities of Ferret. When viewing a high resolution dataset on a global scale it is wasteful of bandwidth to handle the full resolution data. With the striding capability, Ferret selects every nth point along an axis, where n is the striding value. The striding values are dynamically computed based upon the size of the area of interest. The automatic striding approach minimizes the volume of data that need be touched to visualize a large geographic area. Higher resolutions are utilized for smaller areas to reveal the fine structures. The LAS provides this behavior using Google Earth as the user interface. As users zoom or pan on Google Earth, Google Earth interacts with LAS through a Network Link, which contains the URL of a LAS server. When the view inside Google Earth stops for a set number of seconds, it makes a request to a LAS server, sending the LAS server the latitude and longitude boundaries (bounding box) of the area currently in view. The LAS server uses that information to compute stride values, instruct Ferret to generate a visualization for that particular geographic area, and send the resulting image back to Google Earth.

Li, J.; Schweitzer, R.; Hankin, S.; Manke, A.; O'Brien, K.

2007-12-01

273

Airborne Validation of Active CO2 LAS Measurements  

Microsoft Academic Search

A unique, multi-frequency, single-beam, laser absorption spectrometer (LAS) that operates at 1.57 mum has been developed for a future space-based mission to determine the global distribution of sources and sinks of atmospheric carbon dioxide (CO2). A prototype of the space-based LAS system was developed by ITT, and it has been successfully flight tested in seven airborne campaigns conducted in different

E. V. Browell; J. Dobler; S. Kooi; Y. Choi; F. Harrison; B. Moore; T. Zaccheo

2009-01-01

274

Thermal expansion in metal\\/lithia-alumina-silica (LAS) composites  

Microsoft Academic Search

Lithia-alumina-silica (LAS) with metallic dispersions offers a new approach toward near-zero, isotropic, thermal expansion composites. The metallic phase contributes a positive coefficient of thermal expansion (CTE) to the negative CTE of the glass\\/ceramic matrix. In addition, the metal will increase the electrical and thermal conductivities over those of the matrix alone. The LAS system offers tailorable negative CTEs and light

E. G. Wolff

1988-01-01

275

LAS removal and biodegradation in a wastewater treatment plant  

SciTech Connect

Linear alkylbenzene sulfonate (LAS) biodegrades easily and loses it tensioactive properties quickly through a primary biodegradation process, as many works of literature testify. Many studies have been carried out in laboratories or in pilot plants, whereas few have been undertaken in a wastewater treatment plant (WWTP). In Italy, unlike in other countries, no detailed investigation has been made so far to establish LAS biodegradation in real WWTP conditions. EniChem Augusta (EA) and Consorzio Po-Sangone (CPS) have worked together for over two years on this problem, taking into consideration the large and central active sludge WWTP of the metropolitan area of Torino, north of Italy. Specific LAS data have been obtained, using established HPLC techniques, in influent and effluent streams, in the dissolved and adsorbed phases, to reach a complete mass balance. LAS removal >99% and LAS biodegradation of approximately 85% have been observed. Attention also has been given to LAS intermediates of biodegradation, namely the sulfophenyl carboxylates (SPC), using HPLC and GC-MS techniques, the latter after derivatization. The SPCs have been found present only in the waters and not in the adsorbed phases.

Cavalli, L.; Gellera, A.; Landone, A. (EniChem Augusta Industriale, Milano (Italy))

1993-10-01

276

Modeling of Nonpoint Source Pollution in the Las Vegas Valley  

NASA Astrophysics Data System (ADS)

The point sources of pollution (including wastewater treatment plants) within urban areas are well known. However, the contribution of nonpoint source pollution to receiving waterbodies is not as well understood. In this study, the contributions of nonpoint source runoff is evaluated and compared to the loadings from the wastewater treatment facilities in the Las Vegas Valley of southern Nevada. The entire Las Vegas Valley watershed (approximately 2300 square miles) drains to Lake Mead on the Colorado River. Lake Mead is also the main source of drinking water for Las Vegas. Thus, any runoff generated from the Las Vegas Valley could potentially have adverse impact to this drinking water source. A GIS grid based model is developed to calculate total annual nonpoint nutrients and total solid loads from the Las Vegas Valley. The watershed is subdivided and loads are estimated for all land uses. GIS is used to calculate these loads for each grid cell and then ArcView GIS tools are used to track the accumulation of pollutant loads in the storm channel network. This study uses current data obtained from Clark County GIS Management Office and Clark County Regional Flood Control District. The results of this study will assist local and State agencies in developing Total Maximum Daily Loads for the Las Vegas Wash and provide a better understanding of nonpoint source pollution.

Reginato, M.; Piechota, T. C.

2001-12-01

277

77 FR 1720 - Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting, New Mexico  

Federal Register 2010, 2011, 2012, 2013

...DF0000] Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting...Bureau of Land Management (BLM), Las Cruces District Resource Advisory Council (RAC...is January 25, 2012, at the BLM Las Cruces District Office, 1800 Marquess...

2012-01-11

278

77 FR 55225 - Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting, New Mexico  

Federal Register 2010, 2011, 2012, 2013

...DF0000] Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting...Bureau of Land Management (BLM), Las Cruces District Resource Advisory Council (RAC...is September 19, 2012, at the BLM Las Cruces District Office, 1800 Marquess...

2012-09-07

279

76 FR 61379 - Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting, New Mexico  

Federal Register 2010, 2011, 2012, 2013

...XH0000] Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting...Bureau of Land Management (BLM), Las Cruces District Resource Advisory Council (RAC...is October 20, 2011, at the BLM Las Cruces District Office, 1800 Marquess...

2011-10-04

280

40 CFR 81.80 - Las Vegas Intrastate Air Quality Control Region.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Las Vegas Intrastate Air Quality Control Region. ...Quality Control Regions § 81.80 Las Vegas Intrastate Air Quality Control Region. The Las Vegas Intrastate Air Quality Control...

2010-07-01

281

40 CFR 81.80 - Las Vegas Intrastate Air Quality Control Region.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 2009-07-01 false Las Vegas Intrastate Air Quality Control Region. ...Quality Control Regions § 81.80 Las Vegas Intrastate Air Quality Control Region. The Las Vegas Intrastate Air Quality Control...

2009-07-01

282

40 CFR 81.80 - Las Vegas Intrastate Air Quality Control Region.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Las Vegas Intrastate Air Quality Control Region. ...Quality Control Regions § 81.80 Las Vegas Intrastate Air Quality Control Region. The Las Vegas Intrastate Air Quality Control...

2013-07-01

283

Contribution of Proteases and LasR to the Virulence of Pseudomonas aeruginosa during Corneal Infections  

Microsoft Academic Search

The roles of the Pseudomonas aeruginosa proteases LasB (elastase) and LasA and the transcriptional activator LasR, which regulates the expression of these proteases, were evaluated in a murine model of P. aeruginosa corneal infection. In scarified corneas, P. aeruginosa PAO-A1 (LasA negative) or PAO-B1A1 (LasB and LasA negative) at a dose of 10 8 CFU per eye caused very mild

MICHAEL J. PRESTON; PATRICK C. SEED; DEBBIE S. TODER; BARBARA H. IGLEWSKI; DENNIS E. OHMAN; JEAN K. GUSTIN; JOANNA B. GOLDBERG; GERALD B. PIER

1997-01-01

284

Photocatalytic treatment of linear alkylbenzene sulfonate (LAS) in water.  

PubMed

The photocatalytic degradation of aqueous linear alkylbenzene sulfonate (LAS) was studied. Two different photocatalysts, Degussa P25 TiO2 and Hombikat UV 100 TiO2, were used to degrade aqueous linear alkylbenzene sulfonate in slurry batch photoreactors. For a 100 mg/L LAS solution based on first-order rate constants, the optimum photocatalyst loading for Degussa P25 TiO2 was 4.0 g/L, while for Hombikat UV 100 TiO2 it was 2.0 g/L. The photoactivity of Degussa P25 TiO2 it was higher than that of Hombikat UV 100 TiO2 for the treatment of LAS. A mixture of both photocatalysts did not improve the LAS degradation rates in batch experiments. Combination of Degussa P25 TiO2 and 600 mg/L H2O2 along with irradiation with UV light at either 254 or 365 nm did not improve the LAS degradation rates over the photocatalytic or photolytic processes individually. PMID:15887569

Mehrvar, Mehrab; Venhuis, Sarah Hatfield

2005-01-01

285

76 FR 37034 - Proposed Modification of the Las Vegas, NV, Class B Airspace Area; Public Meetings; Correction  

Federal Register 2010, 2011, 2012, 2013

...Procedures, and Bill Ruggiero, Support Manager Las Vegas, TRACON, 699 Wright Brothers Lane, Las Vegas, NV 89119; telephone...Procedures, and Bill Ruggiero, Support Manager Las Vegas, TRACON, 699 Wright Brothers Lane, Las Vegas, NV 89119;...

2011-06-24

286

Effects of linear alkylbenzene sulfonate (LAS) on the adsorption behaviour of phenanthrene on soils  

Microsoft Academic Search

Experimental measurements of adsorption of phenanthrene were made at 25°C with and without the presence of linear alkylbenzene sulfonate (LAS) on two soils from Shenyang, P. R. China and LUFA, Speyer, Germany. Effects of LAS on the adsorption of phenanthrene were studied in LAS concentration range around its critical micelle concentration (cmc) with emphasis on low LAS levels which are

Ziqing Ou; Ayfer Yediler; Yaowu He; Antonius Kettrup; Tieheng Sun

1995-01-01

287

Anaerobic treatment of sludge: focusing on reduction of LAS concentration in sludge  

Microsoft Academic Search

Anaerobic degradation of linear alkylbenzene sulfonates (LAS) was tested in continuous stirred tank reactors (CSTR). LAS12 was used as a model compound and was spiked on sewage sludge. The experiments clearly showed that transformation of LAS12 occurred under anaerobic conditions. The degree of transformation varied between 14% and 25%. HPLC analysis showed that disappearance of LAS12 was followed by the

F. Haggensen; A. S. Mogensen; I. Angelidaki; B. K. Ahring

2002-01-01

288

VARIABLES SIGNIFICATIVAS EN LAS RELACIONES VIOLENTAS EN PAREJAS JÓVENES: UNA REVISIÓN  

Microsoft Academic Search

Resumen La violencia en las parejas jóvenes es un precursor de la violencia en las pare- jas adultas. En las parejas jóvenes la violencia suele ser psicológica, plantearse de forma sutil y ser menos grave que en las parejas en la vida adulta. Por lo que se refiere a los agresores, la violencia es más frecuente cuando hay ciertas variables

Itxaso González-Ortega; Enrique Echeburúa; Paz de Corral

2008-01-01

289

LAS ESTRUCTURAS SOCIALES DE LA ECONOMÍA: EN PIERRE BOURDIEU  

Microsoft Academic Search

Los últimos acontecimientos dentro y fuera de los Estados Unidos en materia económica llevan a re-pensar el rol que juegan tanto la propiedad inmobiliaria como la propiedad en general dentro de nuestras conceptualizaciones y sistema económico. En ese contexto, se inscribe el trabajo del sociólogo francés Pierre Bourdieu titulado Las Estructuras Sociales de la Economía. Originalmente, el autor comienza uno

Maximiliano E. Korstanje

2009-01-01

290

Las Máscaras Del Héroe: Radiografía De Un Anti-Héroe  

Microsoft Academic Search

Las máscaras del héroe depicts Spanish society from the Second Republic to the start of the Civil War, a period when Spain was torn by poverty and immorality. This intertextual historical novel portrays figures such as Pedro Luis de Gálvez, the last of the bohemians and a failed writer. We encounter Gálvez through the first-person narration of Navales, who hates

Emilio Ramón

2009-01-01

291

Linking Cooperation and Sustainable Development: The Las Nubes Coffee Partnership  

Microsoft Academic Search

York University, the Tropical Science Center (TSC), and COOPEAGRI, R.L. of Costa Rica and Timothy's World Coffee have formed a unique partnership to advance rural sustainable development in the Las Nubes region of southern Costa Rica. York's Faculty of Environmental Studies (FES) and TSC have promoted the creation of a biological corridor along the Río Peñas Blancas, between the montane

Howard E. Daugherty; Stefanie J. Hall; Paula Pelaez

292

Las Rocas Nos Cuentan (Rocks Tell Their Stories)  

ERIC Educational Resources Information Center

|Many Earth science lessons today still focus on memorizing the names of rocks and minerals. This led the author to develop a lesson that reveals the fascinating stories told by rocks through the study of their physical properties. He first designed the lesson for Puerto Rican teachers, hence its Spanish title: "Las Rocas Nos Cuentan Su Historia."…

Llerandi-Roman, Pablo A.

2012-01-01

293

Linear alkylbenzene sulfonates (LAS) in the terrestrial environment  

Microsoft Academic Search

The occurrence of linear alkylbenzene sulfonates (LAS) in a series of soil samples originating from the municipality of Roskilde has been studied. The study includes soil samples from eight different locations with different histories: a preserved natural area that has not been cultured for 50–100 years, a soil that has been ecologically cultured for 40 years, a soil sustainably manured

Lars Carlsen; Mai-Britt Metzon; Jeanette Kjelsmark

2002-01-01

294

Modeling Surfactant LAS Influenced PAHs Migration in Soil Column  

Microsoft Academic Search

The objective of the present work was to study the transport of Polycyclic Aromatic Hydrocarbons (PAHs) in artificially contaminated and oil field soil columns while Linear Alkylbenzene Sulfonate (LAS) was used as leaching solvent. Through soil column leaching experiments, the through curves (BTCs) of the tracer (Br?) and PAHs were obtained. The batch equilibrium experiments were conducted. The partition coefficients,

J. Chen; X. J. Wang; J. D. Hu; S. Tao

2006-01-01

295

El chisme y las representaciones sociales de género y sexualidad  

Microsoft Academic Search

Este documento es resultado de una investigación realizada con estudiantes adolescentes que cursan el nivel medio superior en la Universidad Autónoma Chapingo (UACH), la cual imparte ingenierías en ciencias agronómicas y afines. El número de estudiantes varones es prácticamente tres veces superior al de las mujeres y ambos conviven en sus actividades escolares de tiempo completo. El objeto del trabajo

MARÍA EUGENIA; CHÁVEZ ARELLANO; VERÓNICA VÁZQUEZ GARCÍA; AURELIA DE LA ROSA REGALADO

296

Modeling of Nonpoint Source Pollution in the Las Vegas Valley  

Microsoft Academic Search

The point sources of pollution (including wastewater treatment plants) within urban areas are well known. However, the contribution of nonpoint source pollution to receiving waterbodies is not as well understood. In this study, the contributions of nonpoint source runoff is evaluated and compared to the loadings from the wastewater treatment facilities in the Las Vegas Valley of southern Nevada. The

M. Reginato; T. C. Piechota

2001-01-01

297

The petrology of the Las Canadas volcanoes, Tenerife, Canary islands  

Microsoft Academic Search

Tenerife is the largest of the seven Tertiary to Recent volcanic islands that make up the Canary Archipelago. The island is composed of volcanics belonging to the basanitetrachyte-phonolite assemblage that characterises many Atlantic islands. The most voluminous development of intermediate and salic volcanics has been in the centre of the island where the Las Canadas volcanoes arose upon a basement

William Ian Ridley

1970-01-01

298

Las Vegas Serves up Biodiesel for Local Schools  

SciTech Connect

This 2-page Clean Cities fact sheet describes the use of biodiesel as a fuel source in buses by the Clark County School District, located in Las Vegas, NV. It includes information on the history of the program, along with contact information for the local Clean Cities Coordinator and Clark County School District.

Not Available

2004-04-01

299

Geology of Las Vegas, Nevada, United States of America  

Microsoft Academic Search

Las Vegas is one of the fastest growing cities in the US. Its regional geologic setting is in the Basin and Range geomorphic province and in the Sevier orogenic belt. The city itself lies in a broad north-south valley formed by coalescing alluvial fans and lake beds which give rise to several soil and foundation problems. Although destructive earthquakes have

R. V. Wyman; M. Karakouzian; V. Bax-Valentine; L. Peterson; S. Palmer; D. B. Slemmons

1993-01-01

300

Mojave mirages: gender and performance in Las Vegas  

Microsoft Academic Search

The article explores the permeable boundaries between image, perception, experience, and realities through a series of personal observations on gender and performance in Las Vegas. The author'observations on this resort destination in the middle of the Mojave Desert are mingled with the narratives of women who came to the area during and after World War II. Lucrative jobs in wartime

Joanne L. Goodwin

2002-01-01

301

Source Water Assessment for the Las Vegas Valley Surface Waters  

Microsoft Academic Search

The 1996 amendment to the Safe Drinking Water Act of 1974 created the Source Water Assessment Program (SWAP) with an objective to evaluate potential sources of contamination to drinking water intakes. The development of a Source Water Assessment Plan for Las Vegas Valley surface water runoff into Lake Mead is important since it will guide future work on source water

S. P. Albuquerque; T. C. Piechota

2003-01-01

302

Les noves tecnologies: un pas endavant en la documentació jurídica = Las nuevas tecnologías: un paso adelante en la documentación jurídica  

Microsoft Academic Search

Es pretén mostrar la incidència que està tenint l'assentament de les anomenades noves tecnologies de la informació i comunicació en el món del dret, presentant els recursos disponibles a través d'Internet (pàgines web gestionades per l'Administració i iniciatives privades), juntament amb els més tradicionals i usats fins ara (paper, bases de dades en CD-ROM, etc.). Conèixer els recursos disponibles i

Rebeca García Palomeque; Rafael Pérez Campos

2003-01-01

303

Una mímesis del tiempo: Fray Bartolomé de Las Casas y las formas de una gramática del relato  

Microsoft Academic Search

History of the Indies, by Friar Bartolomé de Las Casas, was written over a thirty-year span, and is a text willing to include everything that happened in that timeframe. The History is also a text interrupted by constant digressions that show a particular emplotment that operates by accumulation in order to reproduce in the reading time, the writing time. This

Mariana C. Zinni

2012-01-01

304

Geophysical Studies of the Las Vegas Urban Corridor  

NSDL National Science Digital Library

The Geophysical Studies of the Las Vegas Urban Corridor Area are part of an integrated effort to "geologically characterize the seismic hazards, water resources, and crustal structure of this rapidly growing urban corridor" by the USGS. The informational Web site contains a gravity map of the Las Vegas region, an aeromagnetic map, and a publications link with a list of over a dozen references. Seven of these publications are freely available for download with titles such as "Aeromagnetic Survey of the Amargosa Desert," "Nevada and California: A Tool for Understanding Near-Surface Geology," and Hydrology and Principal Facts for Gravity Stations in the Vicinity of Coyote Spring Valley, Nevada, with Initial Gravity Modeling Results." An interesting collection of unique resources, the site should be of interest to professionals in a wide variety of fields.

2001-01-01

305

Near-Ground optical turbulence measurements at Cerro Las Campanas  

NASA Astrophysics Data System (ADS)

We report preliminary results from Near-Ground optical turbulence measurements carried out at Cerro Las Campanas, the future site of the Giant Magellan Telescope (GMT), using MooSci (Moon Scintillomenter), DIMM (Differential Image Motion Monitor) and MASS (Multiple Aperture Scintillation Sensor), focusing on the effects above the future GMT enclosure. This campaign will continue with future observations of the NGL turbulence in order to better model the adaptive optics performance and aid in the design of the GMT AO instrumentation

Prieto, G.; Berdja, A.; Thomas-Osip, J. E.

2011-11-01

306

Solar hot water system installed at Las Vegas, Nevada  

NASA Astrophysics Data System (ADS)

A solar energy hot water system installed in a motor inn at Las Vegas, Nevada is described. The inn is a three story building with a flat roof for installation of the solar panels. The system consists of 1,200 square feet of liquid flat plate collectors, a 2,500 gallon insulated vertical steel storage tank, two heat exchangers, and pumps and controls. The system was designed to supply approximately 74 percent of the total hot water load.

1981-01-01

307

Geology of Las Vegas, Nevada, United States of America  

SciTech Connect

Las Vegas is one of the fastest growing cities in the US. Its regional geologic setting is in the Basin and Range geomorphic province and in the Sevier orogenic belt. The city itself lies in a broad north-south valley formed by coalescing alluvial fans and lake beds which give rise to several soil and foundation problems. Although destructive earthquakes have not occurred in the Las Vegas area in modern times, the record is very short. Major earthquakes could have taken place in the past when the area was unoccupied except for a few nomadic tribes. Studies are underway to better define the seismicity. Although the climate is hot and dry, flash flooding occurs frequently from late summer thunderstorms and torrential rains. The Regional Flood Control District is actively constructing retention basins and drainage improvements for diversion and protection from such floods. Water supply is a problem for the increasing population. The groundwater supply has long been overdrawn, and the allotment to Nevada under the Colorado River Compact will be completely utilized in the near future. Las Vegas has faced the problems of solid waste disposal, water treatment, rational water use, flooding and earthquakes - all of which are related to the unique geologic and geomorphic setting.

Wyman, R.V.; Karakouzian, M. (Univ. of Nevada, Las Vegas (United States)); Bax-Valentine, V. (Clark County Regional Flood Control District, Las Vegas, NV (United States)); Peterson, L.; Palmer, S. (Kleinfelder, Las Vegas, NV (United States)); Slemmons, D.B.

1993-03-01

308

GIS methodology for quantifying channel change in Las Vegas, Nevada  

USGS Publications Warehouse

This study applies spatial analyses to examine the consequences of accelerated urban expansion on a hydrologic system over a period of 24 years. Three sets of historical aerial photos are used in a GIS analysis to document the geomorphic history of Las Vegas Wash, which drains the rapidly growing Las Vegas urban area in southern Nevada. New spatial techniques are introduced to make quantitative measurements of the erosion at three specific time intervals in the hydrologic evolution of the channel and floodplain. Unlike other erosion studies that use two different elevation surfaces to assess erosion, this study used a single elevation surface to remove systematic and nonsystemic elevation errors. The spatial analysis quantifies channel changes for discrete time periods, calculates erosion volumes, and provides a foundation to examine how the specific mechanisms related to urban expansion have affected Las Vegas Wash. The erosion calculated over 24 years is the largest documented sediment loss attributed to the effect of rapid urban growth. ?? 2007 American Water Resources Association.

Buckingham, S. E.; Whitney, J. W.

2007-01-01

309

Source Water Assessment for the Las Vegas Valley Surface Waters  

NASA Astrophysics Data System (ADS)

The 1996 amendment to the Safe Drinking Water Act of 1974 created the Source Water Assessment Program (SWAP) with an objective to evaluate potential sources of contamination to drinking water intakes. The development of a Source Water Assessment Plan for Las Vegas Valley surface water runoff into Lake Mead is important since it will guide future work on source water protection of the main source of water. The first step was the identification of the watershed boundary and source water protection area. Two protection zones were delineated. Zone A extends 500 ft around water bodies, and Zone B extends 3000 ft from the boundaries of Zone A. These Zones extend upstream to the limits of dry weather flows in the storm channels within the Las Vegas Valley. After the protection areas were identified, the potential sources of contamination in the protection area were inventoried. Field work was conducted to identify possible sources of contamination. A GIS coverage obtained from local data sources was used to identify the septic tank locations. Finally, the National Pollutant Discharge Elimination System (NPDES) Permits were obtained from the State of Nevada, and included in the inventory. After the inventory was completed, a level of risk was assigned to each potential contaminating activity (PCA). The contaminants of concern were grouped into five categories: volatile organic compounds (VOCs), synthetic organic compounds (SOCs), inorganic compounds (IOCs), microbiological, and radionuclides. The vulnerability of the water intake to each of the PCAs was assigned based on these five categories, and also on three other factors: the physical barrier effectiveness, the risk potential, and the time of travel. The vulnerability analysis shows that the PCAs with the highest vulnerability rating include septic systems, golf courses/parks, storm channels, gas stations, auto repair shops, construction, and the wastewater treatment plant discharges. Based on the current water quality data (prior to treatment), the proximity of Las Vegas Wash to the intake, and the results of the vulnerability analysis of potential contaminating activities, it is determined that the drinking water intake is at a Moderate level of risk for VOC, SOC, and microbiological contaminants. The drinking water intake is at a High level of risk for IOC contaminants. Vulnerability to radiological contamination is Moderate. Source water protection in the Las Vegas Valley is strongly encouraged because of the documented influence of the Las Vegas Wash on the quality of the water at the intake.

Albuquerque, S. P.; Piechota, T. C.

2003-12-01

310

Jules Cotard: sa vie, son œuvre  

Microsoft Academic Search

Résumé  Jules Cotard, médecin aliéniste à la maison de santé de Vanves était décrit comme un fin observateur et clinicien. Il était\\u000a passionné par la recherche clinique, toujours prêt à nuancer, à remettre en cause, voire à abandonner ses hypothèses lorsque\\u000a les faits cliniques et l’analyse scientifique l’y conduisaient. Il a consacré la plupart de ses écrits au délire de négation:

O. Hantkie

2009-01-01

311

Maternal personality correlates of sons' creativity  

Microsoft Academic Search

Compared CPI scores of 33 mothers of creative high school males, as identified by both teachers' nominations and test scores, with scores of a control group. Mothers of creative Ss exhibit greater self-assurance, initiative, and interpersonal competence; they prefer change and unstructured demands; they are more insightful about others, more tolerant, and value autonomy and independent endeavor. They are, however,

George Domino

1969-01-01

312

Türkiye'de Tüberkülozun Son Durumu  

Microsoft Academic Search

Girifl Tarihin en eski hastal›klar›ndan birisi olan tüberküloz bugün dünyada hâlâ hayat› tehdit eden bir hastal›k olarak varl›¤›n› sürdür- mektedir. Dünya Sal›k Örgütü (WHO) ile Tüberküloz ve Akcier Hastal›klar› ile Savafl›m Birlii (IUATLD)'nin 1990 araflt›rma so- nuçlar›na göre, 1.7 milyar kifli Mycobacterium tuberculosis ile in- fekte iken, 1994'te infekte kifli say›s› 1.9 milyar olarak bildirilmifl- tir ve WHO, 2005'te dünyada

Meltem Uzun

313

Los Niños No Son Simplemente Adultos Pequeños  

Center for Drug Evaluation (CDER)

Quick Links: Skip to main page content Skip to Search Skip to Topics Menu Skip to Section Content Menu Skip to Common Links. ... More results from www.fda.gov/drugs/emergencypreparedness/bioterrorismanddrugpreparedness

314

Masculinity, identification, and father-son relationships  

Microsoft Academic Search

2 groups of kindergarten boys were selected on the basis of high and low scores on a test of sex-typing of interests. Ss were exposed to a doll-play situation and were asked to complete 9 stories involving parent-child relationships. 3 theories of identification were tested, viz., psychoanalytic (defensive identification with a punitive aggressor), developmental (movement towards a nurturing figure), and

Paul Mussen; Luther Distler

1959-01-01

315

Parents' differential reactions to sons and daughters  

Microsoft Academic Search

Investigated parents' reactions to a child's voice as a function of sex of parent, and sex of child. Using as a stimulus a child's voice that was ambiguous with respect to sex, 1 group of parents was told they were hearing a boy's voice, another that they were hearing a girl's voice. A pattern of results emerged with fathers showing

Mary K. Rothbart; Eleanor E. Maccoby

1966-01-01

316

Brady, Our Firstborn Son, Has Autism  

ERIC Educational Resources Information Center

|Autism awareness is spreading like wildfire. Diagnoses have increased at an astounding rate. The statistic most often quoted is that 1 child in 150 has autism. As if the high rate of autism diagnoses were not worrisome enough, many doctors are not properly trained, or kept up to date, on how to detect autism at the earliest possible age. In many…

Yeh-Kennedy, Mei

2008-01-01

317

Maimonides’ Sons: Episodes In Modern Jewish Thought  

Microsoft Academic Search

My thesis centers on three modern Jewish thinkers—Yeshayahu Leibowitz, David Hartman and Joseph Soloveitchik—and their philosophical relationship with and use of Maimonides. Maimonides is the central thinker in and the touchstone of Jewish philosophy, matched only by Aquinas in Catholic theology.\\u000aThe first essay concerns the nature of halakha in the concluding chapters of The Guide of the Perplexed and

Matthew LaGrone

2003-01-01

318

Mexican Americans: Sons of the Southwest.  

ERIC Educational Resources Information Center

|Concerned with the Mexican Americans, who constitute the largest ethnic group in the southwestern United States, this book traces the history of these people from the early explorations and colonizing efforts of the Spanish in North and South America during the 16th century to the present. Major divisions of this book are the Introduction,…

Lamb, Ruth S.

319

76 FR 35371 - Proposed Modification of the Las Vegas, NV, Class B Airspace Area; Public Meetings  

Federal Register 2010, 2011, 2012, 2013

...FURTHER INFORMATION CONTACT: John Gough, Manager, Airspace and Procedures, and Bill Ruggiero, Support Manager Las Vegas, TRACON, 699 Wright Brothers Lane, Las Vegas, NV 89119; telephone: (702) 597-5910. SUPPLEMENTARY INFORMATION: [[Page...

2011-06-17

320

Biotransformation of linear alkylbenzene sulfonate (LAS) by Phanerochaete chrysosporium : oxidation of alkyl side-chain  

Microsoft Academic Search

The white rot fungus Phanerochaete chrysosporium, which generally mineralizes substituted aromatics to CO2, transformed linear alkylbenzene sulfonate (LAS) surfactants mainly at their alkyl side chain. Degradation of LAS was evidenced by a zone of clearing on LAS-containing agar plates and colorimetric analysis of liquid cultures. Disappearance of LAS was virtually complete within 10 days in low nitrogen (2.4 mM N),

Jagjit S. Yadav; David L. Lawrence; Barbara A. Nuck; Thomas W. Federle; C. Adinarayana Reddy

2001-01-01

321

Linear alkyl benzene sulphonate (LAS) degradation by immobilized Pseudomonas aeruginosa under low intensity ultrasound  

Microsoft Academic Search

We studied the LAS degradation of immobilized Pseudomonas aeruginosa with low-intensity ultrasonic and the influence of original LAS concentration, pH, rotary velocity and different conditions of low-intensity ultrasonic irradiation on the degradation of LAS. In our experiment, the degradation rate of LAS was the main index. We found that low-intensity ultrasonic irradiation could improve the metabolism of microorganism cells and

Xiang Lijun; Wang Bochu; Li Zhimin; Duan Chuanren; Wang Qinghong; Liu Liu

2005-01-01

322

Percepción de las redes sociales en la escuela: colegio Felipe Palazon (Tarija – Bolivia)  

Microsoft Academic Search

No hay duda que desde hace mucho las tecnologías de la información y comunicación, asi como internet, tienen un crecimiento exponencial sin límites en todo el mundo, por las múltiples aplicaciones, y aporte en todos los ámbitos profesionales, lo mismo ocurre con el fenómeno de las redes sociales. En Bolivia y, específicamente en la ciudad de Tarija, siguen esta tendencia;

Carmelo Branimir España Villegas

2011-01-01

323

78 FR 20354 - Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting, New Mexico  

Federal Register 2010, 2011, 2012, 2013

...DF0000] Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting...Bureau of Land Management's (BLM) Las Cruces District Resource Advisory Council (RAC...meet on April 23, 2013, at the BLM Las Cruces District Office Main Conference Room...

2013-04-04

324

77 FR 18858 - Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting, New Mexico  

Federal Register 2010, 2011, 2012, 2013

...DF0000] Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting...Bureau of Land Management (BLM), Las Cruces District Resource Advisory Council (RAC...date is April 11 2012, at the BLM Las Cruces District Office, 1800 Marquess...

2012-03-28

325

77 FR 77090 - Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting, New Mexico  

Federal Register 2010, 2011, 2012, 2013

...DF0000] Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting...Bureau of Land Management's (BLM) Las Cruces District Resource Advisory Council (RAC...Museum, 4100 Dripping Springs Road, Las Cruces, NM, 88005 from 9 a.m.-4...

2012-12-31

326

78 FR 44590 - Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting, New Mexico  

Federal Register 2010, 2011, 2012, 2013

...DF0000] Notice of Public Meeting, Las Cruces District Resource Advisory Council Meeting...Bureau of Land Management's (BLM) Las Cruces District Resource Advisory Council (RAC...meet on August 22, 2013, at the BLM Las Cruces District Office Main Conference Room...

2013-07-24

327

LOS HÁBITOS DE ACTIVIDAD FÍSICA DE LAS PERSONAS MAYORES EN ESPAÑA Y CONDICIÓN SOCIAL  

Microsoft Academic Search

La investigación persigue comprobar las posibles desigualdades y diferencias según la posición social percibida en la práctica de actividad física semanal regular (una o dos veces por semana) de las personas mayores en España. La metodología cuantitativa empleada ha consistido en la aplicación de un cuestionario estructurado a una mues- tra aleatoria de las personas mayores de 65 años en

González Rivera; Martín Rodríguez; Jiménez-Beatty Navarro; Campos Izquierdo

328

Anaerobic biodegradation of linear alkylbenzene sulfonate (LAS) in upflow anaerobic sludge blanket (UASB) reactors  

Microsoft Academic Search

The anaerobic biodegradation of Linear Alkylbenzene Sulfonate (LAS) was studied in Upflow Anaerobic Sludge Blanket Reactors (UASB). One reactor was fed with easily degradable substrates and commercial LAS solution during a period of 3 months (Reactor 1), meanwhile a second reactor was fed with a commercial LAS solution without co-substrate (Reactor 2) during 4 months. Both reactors were operated with

José L. Sanz; Elayne Culubret; Juan de Ferrer; Alfonso Moreno; José L. Berna

2003-01-01

329

78 FR 2646 - Proposed Modification of Class B Airspace; Las Vegas, NV  

Federal Register 2010, 2011, 2012, 2013

...Modification of Class B Airspace; Las Vegas, NV AGENCY: Federal Aviation Administration...document, the FAA proposed to modify the Las Vegas, NV, Class B airspace area to ensure...Modification of Class B Airspace; Las Vegas, NV'' (77 FR 65332). The FAA...

2013-01-14

330

75 FR 38778 - Expansion of Foreign-Trade Zone 89 Las Vegas, NV  

Federal Register 2010, 2011, 2012, 2013

...1688] Expansion of Foreign-Trade Zone 89 Las Vegas, NV Pursuant to its authority under the Foreign-Trade...FTZ 89 to include a site in the City of North Las Vegas, Nevada, within the Las Vegas Customs and Border Protection port of entry...

2010-07-06

331

Las Relaciones Universidad- Empresa y su incidencia en la Producción Científica  

Microsoft Academic Search

El establecimiento de forma generalizada de las relaciones entre la Universidad y la empresa ha abierto un campo de estudio de gran interés, centrado en los efectos que tales relaciones pudiesen tener sobre las misiones universitarias tradicionales, especialmente sobre la investigación. En este artículo se analiza si las relaciones universidad empresa (RUE) inhiben la productividad científica de los profesores universitarios.

Liney Manjarrés-Henríquez; Antonio Gutiérrez-Gracia; Jaider Vega-Jurado; Andrés Carrión-García

2012-01-01

332

UNA METODOLOGÍA ADMINISTRATIVA PARA LAS PEQUEÑAS Y MEDIANAS EMPRESAS DE LA REGIÓN DE CELAYA  

Microsoft Academic Search

En los últimos años en nuestro país, ha venido cobrando especial relevancia el sector de los micros, pequeñas y medianas empresas (MIPyMES); las estrategias principales del gobierno, están enfocadas precisamente en el apoyo a este sector, que sustenta las cifras actuales de empleo. Sin embargo las condiciones económicas y financieras del entorno han generado un alto grado de incertidumbre, los

Nicolás Barajas-Andrade; Eugenio Guzmán-Soria; Juvencio Hernández-Martínez; Samuel Rebollar-Rebollar

2009-01-01

333

Determinantes de las respuestas a vacunas orales en países en vías de desarrollo  

Microsoft Academic Search

ExtractoLas vacunas orales que se han diseñado para uso global no inducen necesariamente las mismas respuestas inmunitarias en todos los niños de todo el mundo. De hecho, varias vacunas inducen a menudo respuestas medias de anticuerpos menos frecuentes y menores en niños en países en vías de desarrollo, lo que permite suponer que las vacunas pueden producir un efecto menos

David A. Sack; Firdausi Qadri; Ann-Mari Svennerholm

2008-01-01

334

Influence of water hardness on the bioavailability and toxicity of linear alkylbenzene sulphonate (LAS)  

Microsoft Academic Search

In the present work, the influence of Ca2+ concentration on the toxicity of single cut linear alkylbenzene sulfonate (LAS) homologues was studied. Precipitation boundary diagrams for each homologue were obtained, indicating turbid and clear zones depending on the LAS and Ca2+ concentrations. The separation between transparent and turbid zones is given by the so-called precipitation line. LAS toxicity to Daphnia

Coral Verge; Alfonso Moreno; José Bravo; José L. Berna

2001-01-01

335

Mecanismos de Acción de las Auxinas y los Herbicidas Auxínicos  

NSDL National Science Digital Library

Se muestra como las auxinas y los herbicidas auxínicos pueden inducir respuestas celulares y se describe el transporte basípeto de las auxinas. También se muestra como los receptores de auxinas reconocen las auxinas y los herbicidas auxínicos, los cuales inducen entonces la transmisión y traducción de señales para activar varios genes; el papel de los productos de esos genes en las respuestas de las plantas es también mostrado.

336

ÓPTIMO DE COBERTURA VEGETAL EN RELACIÓN A LAS PÉRDIDAS DE SUELO POR EROSIÓN HÍDRICA Y LAS PÉRDIDAS DE LLUVIA POR INTERCEPTACIÓN  

Microsoft Academic Search

RESUMEN Se establece, en una primera aproximación, el óptimo de cobertura en función de las pér- didas de suelo por erosión hídrica y de las pérdidas de lluvia por interceptación, en un mato- rral (romeral), en condiciones ambientales semiáridas mediterráneas, con un mismo tipo de suelo y dos tramos de pendiente de ladera, 11% y 25%. Se utiliza el promedio

Belmonte Serrato; Romero Díaz; López Bermúdez; E. Hernández Laguna

337

Revision curricular a partir de un analisis comparativo de las discrepancias en los curriculos de una escuela de optometria en Puerto Rico con las competencias requeridas para las agencias de revalida y acreditacion 2004  

NASA Astrophysics Data System (ADS)

El proposito de esta investigacion, un estudio cualitativo de caso, fue comparar y contrastar el curriculo vigente de la Escuela de Optometria de la UIAPR con las competencias y estandares requeridos por las agencias de acreditacion y de revalida. Con este proposito, decidimos realizar una revision y un analisis de documentos: el prontuario de cada uno de los cursos de los curriculos implantados en el 1993 y en el 2001; las competencias y estandares establecidos por las agencias de revalida y de acreditacion; y las estadisticas en las que se analiza el porcentaje de estudiantes que aprueban cada una de las partes de los examenes de revalida entre el 1998 al 2003. Se realizaron entrevistas dirigidas para dar apoyo y complementar la revision y el analisis de estos documentos. Los participantes de las entrevistas fueron tres estudiantes de la clase de optometria del 2004 (ultima clase del curriculo del 1993); tres estudiantes de la clase de optometria del 2005 (primera clase graduanda del curriculo vigente) y tres profesores y/o directores de los Departamentos de Ciencias Basicas, Ciencias Clinicas y Cuidado al Paciente. Esta investigacion se enmarco en el modelo de evaluacion curricular de discrepancia de Malcolm Provus y en el modelo de desarrollo basado en competencias. Uno de los hallazgos mas importantes del estudio es que los cambios que se implantaron al curriculo del 2001 no han logrado que los estudiantes mejoren su ejecucion en los examenes de revalida. Por otro lado, se encontro que el curriculo vigente atiende completamente los estandares de la practica de Optometria, pero no las competencias. Esta informacion fue validada mediante el uso de una tabla de cotejo para el analisis de los cursos y de la informacion obtenida de las entrevistas. El estudio determina y concluye que existen discrepancias entre los prontuarios de los cursos del curriculo y las competencias requeridas por la agencia de revalida. Segundo, que el Departamento de Ciencias Basicas es el que presenta mas deficiencias en el desarrollo de las competencias. El investigador recomienda disenar e implantar un curriculo basado en competencias y proveer formacion en didactica y procesos de aprendizaje a los profesores.

Rivera Pacheco, Andres

338

Hotel room suicide: Las Vegas and Clark County.  

PubMed

Our objective is to study the link between hotel registration and suicide. Clark County, which contains Las Vegas, drew our interest because of its extremely large number of hotel rooms. Case files of suicide from the Clark County Coroner were reviewed for years 2003-2005. The suicide rate of local residents registering in local hotels was 271/100,000. This is greater than the suicide rate in the general population of Clark County, 16.6/100,000, P<0.0001, Poisson distribution. Hotel guests from outside Clark County had a reduced rate of suicide, 4.6/100,000, P<0.0001. Residents of Clark County registering in local hotels have an increased suicide risk that is statistically significant. Possible explanations for the results are provided. PMID:17934685

Gemar, Kjersti; Zarkowski, Paul; Avery, David

2007-10-12

339

Influencia de los bancos y cajas como accionistas y acreedores en la manipulación contable de las empresas  

Microsoft Academic Search

En este trabajo utilizamos una base de datos formada por 13247 empresas españolas para el periodo 1996-2000 y estudiamos el efecto de la presencia de instituciones financieras –bien sea como accionista o como acreedor- en las practicas de manipulación de beneficios (earnings management) de las empresas. Encontramos que las instituciones financieras como accionistas estimulan las prácticas de manipulación contable en

Jordi Surroca; Josep A. Tribo

2007-01-01

340

La externalizacion del trabajo agrario y las empresas de servicios a la agricultura  

Microsoft Academic Search

Resumen: En este art�culo se analiza el proceso de externalizaci�n de las labores agrarias y el consiguiente desarrollo de una agricultura terciarizada. La fragmentada dimensi�n laboral y econ�mica de las explotaciones agrarias determina el proceso de externalizaci�n de las tareas agrarias en la medida en que no permite ni la incorporaci�n de innovaciones que exige el desarrollo del sistema alimentario

Alicia Langreo Navarro; Sociedad de Estudios

2002-01-01

341

Analytical methodology for linear alkylbenzene sulfonate (LAS) in waters and wastes  

Microsoft Academic Search

Analytical methodology has been developed for the measurement of linear alkylbenzene sulfonate (LAS) in a broad spectrum of\\u000a water and wastewater samples. In addition to providing the homolog-isomer composition of LAS, the gas chromatographic procedure\\u000a has been quantified by incorporation of an internal standard to provide a specific measurement of LAS. The applicability and\\u000a sensitivity of the standard, but non-specific,

Q. W. Osburn

1986-01-01

342

Inhibition of Biogas Production by Alkyl Benzene Sulfonates (LAS) in a Screening Test for Anaerobic Biodegradability  

Microsoft Academic Search

The effect of the inoculum source on the digestion of linear alkylbenzene sulfonates (LAS) under anaerobic conditions has\\u000a been investigated. The potential for primary and ultimate LAS biodegradation of anaerobic sludge samples obtained from wastewater\\u000a treatment plants (WWTPs) of different geographical locations was studied applying a batch test system. It was found that only\\u000a 4–22% of the LAS added to

M. Teresa Garcia; Encarna Campos; Manel Dalmau; Patricia Illán; Joaquin Sánchez-Leal

2006-01-01

343

“Ripple effects” and forecasting home prices in Los Angeles, Las Vegas, and Phoenix  

Microsoft Academic Search

We examine the time-series relationship between house prices in Los Angeles, Las Vegas, and Phoenix. First, temporal Granger\\u000a causality tests reveal that Los Angeles house prices cause house prices in Las Vegas (directly) and Phoenix (indirectly).\\u000a In addition, Las Vegas house prices cause house prices in Phoenix. Los Angeles house prices prove exogenous in a temporal\\u000a sense and Phoenix house

Rangan Gupta; Stephen M. Miller

2009-01-01

344

Environmental levels of Linear alkylbenzene Sulfonates (LAS) in sediments from the Tagus estuary (Portugal): environmental implications.  

PubMed

Sediments from the Tagus estuary (Portugal) were collected at 40 stations in July and December 2004. Total LAS concentrations ranged between 0.03 and 17.76 mg LAS.kg(-1) dry weight in July, and between 0.09 and 9.57 mg LAS.kg(-1) in December. Highest LAS concentrations were found at the upper northern part of the estuary, coincident with the localisation of an important waste water treatment station. According to the Predicted No Effect Concentration (PNEC) of 8.1 mg.kg(-1) derived for this compound, Environmental Risk Assessment (ERA) identified a hazard for the ecosystem at the station with the highest LAS concentration, and similar results are obtained by Equilibrium Partitioning Method (EPM). Nevertheless, LAS concentrations decreased significantly between samplings in the stations with the highest LAS concentrations in July, whereas increased LAS concentrations at adjacent stations were found in December. In the remaining stations, LAS concentrations were up to three orders of magnitude lower, representing no hazard for the sediment community. PMID:18228153

Hampel, M; Canário, J; Branco, V; Vale, C; Blasco, J

2008-01-29

345

Sire-Son and DamSon Paths: Research Geneticist's View  

Microsoft Academic Search

Implementation of selection proce- dures for dairy cattle requires identi- fication of all effects and modifications of any selection scheme for the whole cow population over space and time. Research in the early 70's provided complete modeling of selection effects in any population structure. Conventional situations for dairy cattle selection are compared. Reasons for underestimation of expected annual genetic change

Jean-Claude Mocquot

1988-01-01

346

Las políticas públicas de fomento del reciclaje: La regeneración de aceites usados  

Microsoft Academic Search

Los aceites usados son un residuo peligroso del que pueden derivarse graves daños medioambientales si su gestión es inadecuada; al mismo tiempo, tienen un indudable valor económico, ya que conservan gran parte de los hidrocarburos que los lubricantes contenían originalmente. La gestión de los aceites usados ofrece distintas alternativas, dirigidas principalmente al reciclaje, siendo de destacar la combustión y la

Asunción Arner Güerre; Ramón Barberán Ortí; Jesús Mur Lacambra

2003-01-01

347

Atmospheric Radioxenon Measurements in North Las Vegas, NV  

SciTech Connect

PNNL deployed the ARSA radioxenon measurement system in North Las Vegas for two weeks in February and March 2006 for the purpose of measuring the radioxenon background at a level of sensitivity much higher than previously done in the vicinity of the NTS. The measurements establish what might be expected if future measurements are taken at NTS itself. The measurements are also relevant to test site readiness. A second detector, the PEMS, built and operated by DRI, was deployed in conjunction with the ARSA and contained a PIC, aerosol collection filters, and meteorological sensors. Originally, measurements were also to be performed at Mercury, NV on the NTS, but these were canceled due to initial equipment problems with the ARSA detector. Some of the radioxenon measurements detected 133Xe at levels up to 3 mBq/m3. This concentration of radioxenon is consistent with the observation of low levels of radioxenon emanating from distance nuclear reactors. Previous measurements in areas of high nuclear reactor concentration have shown similar results, but the western US, in general, does not have many nuclear reactors. Measurements of the wind direction indicate that the air carrying the radioxenon came from south of the detector and not from the NTS.

Milbrath, Brian D.; Cooper, Matthew W.; Lidey, Lance S.; Bowyer, Ted W.; Hayes, James C.; McIntyre, Justin I.; Karr, L.; Shafer, D.; Tappen, J.

2006-07-31

348

Optimization of linear alkylbenzene sulfonate (LAS) degradation in UASB reactors by varying bioavailability of LAS, hydraulic retention time and specific organic load rate.  

PubMed

Degradation of linear alkylbenzene sulfonate (LAS) in UASB reactors was optimized by varying the bioavailability of LAS based on the concentration of biomass in the system (1.3-16 g TS/L), the hydraulic retention time (HRT), which was operated at 6, 35 or 80 h, and the concentration of co-substrates as specific organic loading rates (SOLR) ranging from 0.03-0.18 g COD/g TVS.d. The highest degradation rate of LAS (76%) was related to the lowest SOLR (0.03 g COD/g TVS.d). Variation of the HRT between 6 and 80 h resulted in degradation rates of LAS ranging from 18% to 55%. Variation in the bioavailability of LAS resulted in discrete changes in the degradation rates (ranging from 37-53%). According to the DGGE profiles, the archaeal communities exhibited greater changes than the bacterial communities, especially in biomass samples that were obtained from the phase separator. The parameters that exhibited more influence on LAS degradation were the SOLR followed by the HRT. PMID:23196232

Okada, Dagoberto Y; Delforno, Tiago P; Esteves, Andressa S; Sakamoto, Isabel K; Duarte, Iolanda C S; Varesche, Maria B A

2012-10-26

349

Comprehensive Housing Market Analysis: Las Vegas-Paradise, Nevada As of March 1, 2009.  

National Technical Information Service (NTIS)

The Las Vegas-Paradise, Nevada Housing Market Area (HMA) consists of Clark County, which is located in southern Nevada, bordering California. Las Vegas, the most populous city in the county and the county seat, is known as the Entertainment Capital of the...

2009-01-01

350

IUS Y LEX: NOTAS METODOLÓGICAS SOBRE LAS CLASIFICACIONES TAXONÓMICAS EN MARY DOUGLAS  

Microsoft Academic Search

Para Douglas las percepciones y las anomalías se relacionan no con la naturaleza en sí sino con un sistema de clasificación previo. La idiosincrasia cultural clasifica a su manera que elementos encajan en tal y\\/o cual lugar. Douglas está interesada en estudiar el rol de la metáfora y la anomalía como modos comparativos entre el orden cultural y natural. Al

Maximiliano Korstanje

2007-01-01

351

Las Células Dendríticas y su Papel de Centinelas del Sistema Inmune  

Microsoft Academic Search

La historia natural de estas células se divide en dos: células inmaduras y células maduras. Las CDe inmadu- ras se encuentran distribuidas ampliamente en tejidos linfoides y no linfoides y con una tasa de recambio rela- tivamente rápida (vida media menos de dos días). Esta alta tasa de recambio está asociada a una de las carac- terísticas particulares de esta

Melitza Iglesias

352

Linear Alkylbenzene Sulfonates (LAS) in Sewage Sludges, Soils and Sediments: Analytical Determination and Environmental Safety Considerations  

Microsoft Academic Search

Linear Alkylbenzenesulphonates (LAS), a major anionic surfactant used in laundry products, can be measured specifically in the environment by instrumental analysis. In addition to a desulphonation-gas chromatography approach, a method based on high performance liquid chromatography has been developed. The main features of the methods are outlined, and LAS concentrations measured in sewage sludge, sediments and sludge amended soils are

H. De Henau; E. Mathijs; W. D. Hopping

1986-01-01

353

Anaerobic bioprocessing of sewage sludge, focusing on degradation of linear alkylbenzene sulfonates (LAS)  

Microsoft Academic Search

Anaerobic degradation of sludge amended with linear alkylbenzene sulfonates (LAS) was tested in a one stage continuous stirred tank reactor (CSTR) and a two stage reactor system consisting of a CSTR as first step and upflow anaerobic sludge bed (UASB) reactor as the second step. Anaerobic removal of LAS was only observed at the second step but not at the

I. Angelidaki; L. Toräng; C. M. Waul; J. E. Schmidt

354

LAS homolog distribution shift during wastewater treatment and composting ecological implications  

Microsoft Academic Search

The behavior of LAS (linear alkylbenzene sulfonate) in different environmental compartments was studied through wastewater treatment process steps in sewage treatment plants of Alicante and Benidorm (activated sludge type) as well as in Guardamar (lagoons). The fate of LAS, using a specific HPLC method, was monitored during treatment sludge compostage and soil amendment operations. Finally, the marine sediments close to

D. Prats; F. Ruiz; B. Vazquez; D. Zarzo; J. L. Berna; A. Moreno

1993-01-01

355

La Noche de las Brujas Module. Nivel Primario. [The Night of the Witches Module. Primary Level.  

ERIC Educational Resources Information Center

|La Noche de las Brujas (Halloween) is the topic of this primary level unit. The objectives are to enable the child to: (1) draw scenery, using his imagination, about witches, castles, and devils; (2) write compositions on witches, devils, and Halloween; (3) explain the story "La Noche de las Brujas"; (4) tell about any adventures or incidents he…

Espinoza, Delia

356

EFFECT OF SECONDARY EFFLUENTS ON EUTROPHICATION IN LAS VEGAS BAY, LAKE MEAD, NEVADA  

EPA Science Inventory

The eutrophication potential of Lake Mead, with primary emphasis on Las Vegas Bay, was determined with Selenastrum capricornutum. Nutrient limitation profiles were determined for three sampling stations in Las Vegas Bay and one in Boulder Basin. After heavy metals were chelated w...

357

Geology of the Gualan and Southern Sierra de las Minas Quadrangles, Guatemala  

Microsoft Academic Search

The Gualan and Sierra de las Minas quadrangles straddle the Motagua Valley fault zone, a major southerly convex fault zone of Nuclear Central America, and the active transform boundary between the North American and Caribbean plates. Two distinctly different pre-Mesozoic metamorphic basement complexes are exposed in the area. The Chuacus Group crops out north of the Motagua Valley. The Las

K. R. Johnson

1984-01-01

358

Problem-Solving in Las Vegas: Students Are Building Skills and a Global Network.  

ERIC Educational Resources Information Center

Describes a project initiated at Silverado High School in Las Vegas, where students from Las Vegas and schools across the United States monitor the levels of radon in the atmosphere. Enables students to learn first hand about the collection, analysis, and interpretation of scientific data and to network with other students from the United States…

Budd, Gregory; Curry, Don

1995-01-01

359

La gestión de las relaciones con clientes y la empresa de alta rentabilidad de Galicia  

Microsoft Academic Search

RESUMEN La gestión de las relaciones con los clientes es un factor diferencial de las empresas de alta rentabilidad (AR), organizaciones que poseen un elevado rendimiento económico. El presente trabajo propone profundizar en la gestión de clientes como fuente de ventaja competitiva, aplicando la perspectiva de los recursos y capacidades. Con esta finalidad, ofrecemos los resultados obtenidos tras la realización

Pablo Cabanelas Lorenzo; Anxo Moreira

2009-01-01

360

Roles of Pseudomonas aeruginosa las and rhl Quorum-Sensing Systems in Control of Elastase and Rhamnolipid Biosynthesis Genes  

Microsoft Academic Search

putative interaction between PAI-2 and RhlR, we demonstrated that (3H)PAI-2 binds to E. coli cells expressing RhlR and not to those expressing LasR. Finally, the specificity of the las and rhl systems was examined in E. coli bioassays. The las system was capable of mildly activating rhlA, and similarly, the rhl system partly activated lasB. However, these effects were much

JAMES P. PEARSON; EVERETT C. PESCI; BARBARA H. IGLEWSKI

1997-01-01

361

LAS AMERICAS Y LA CIVILIZACIÓN: PROCESO DE FORMACIÓN Y CAUSAS DEL DESARROLLO DESIGUAL DE LOS PUEBLOS AMERICANOS  

Microsoft Academic Search

Indudablemente Darcy Ribeiro se ha transformado en uno de los antropólogos latinoamericanos más influyentes de las últimas décadas. Centrado en el estudio de las causas económicas y políticas del desarrollo. En este contexto, la presente reseña examina su trabajo: Las Américas y la Civilización, obra publicada originalmente en 1972 por el Centro Editor de América Latina. El capítulo introductorio comienza

Maximiliano E. Korstanje

2009-01-01

362

40 CFR 81.82 - El Paso-Las Cruces-Alamogordo Interstate Air Quality Control Region.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 false El Paso-Las Cruces-Alamogordo Interstate Air Quality...Regions § 81.82 El Paso-Las Cruces-Alamogordo Interstate Air Quality Control Region. The El Paso-Las Cruces-Alamogordo Interstate...

2009-07-01

363

40 CFR 81.82 - El Paso-Las Cruces-Alamogordo Interstate Air Quality Control Region.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 false El Paso-Las Cruces-Alamogordo Interstate Air Quality...Regions § 81.82 El Paso-Las Cruces-Alamogordo Interstate Air Quality Control Region. The El Paso-Las Cruces-Alamogordo Interstate...

2010-07-01

364

The Las Cañadas caldera (Tenerife, Canary Islands): an overlapping collapse caldera generated by magma-chamber migration  

Microsoft Academic Search

The Las Cañadas caldera is one of the most important geological structures of Tenerife. Stratigraphic, structural, volcanological, petrological, geochronological, and geophysical data suggest that the Las Cañadas caldera resulted from multiple vertical collapse episodes that occurred during the construction of the Las Cañadas edifice Upper Group. Three long-term (?200ka) cycles of phonolitic explosive activity, each culminating with a caldera collapse,

J. Marti; A. Gudmundsson

2000-01-01

365

La internacionalización de empresas: relación entre el capital social, las tecnologías de la información relacional y la innovación  

Microsoft Academic Search

Este trabajo tiene como objetivo revisar el proceso de internacionalización de las empresas, estudiando su desempeño exportador y la influencia que ejercen variables como el capital social, las tecnologías de la información relacional (Web 2.0) y la innovación. Para cumplir este propósito se realiza una revisión sobre los fundamentos teóricos y conceptuales sobre la relación entre la internacionalización empresarial, las

María José Peláez Cano; Manuel Rodenes Adam

2010-01-01

366

Routine Diagnostic Venous Ultrasound and LAS for Leg Edema of Unknown Cause  

PubMed Central

Objective: To verify the diagnostic efficiency of venous duplex ultrasound and lymphangioscintigraphy (LAS) in establishing the cause of leg edema and to clarify the pathology of these leg edemas. Materials and Methods: Between April 2009, and March 2010, 62 patients with leg edema of unknown origin were referred to the Edema Clinic of the Yamaguchi University Graduate School of Medicine. All patients underwent a venous duplex ultrasound scan and LAS. Results: Of 62 patients, lymphatic insufficiency, venous insufficiency or both was diagnosed in 42 (68%), and lymphedema, in 29 (47%). Venous duplex ultrasound detected obvious venous disorders in only 13 (21%), and for 20 patients, the ultrasound and LAS did not reveal any abnormalities; however, for 15 of the 20 (24% of all patients), venous edema was attributed to functional causes. Conclusion: Venous duplex ultrasound and LAS assisted in the diagnosis of leg edema of unknown origin and also proved useful in establishing treatment strategies.

2010-01-01

367

La Interacción de la Luz con las Biomoléculas  

NSDL National Science Digital Library

En esta lección se describe la naturaleza de la luz, la energía de los fotones y como dicha energía puede ser transferida a las biomoléculas. Se describen también tanto los procesos benéficos como los procesos dañinos por medio de los cuales las biomoléculas disipan la energía recibida.

368

Effect of linear alkylbenzene sulfonate (LAS) and atrazine on marine microalgae  

Microsoft Academic Search

Five marine microalgae (Tetraselmis chuii, Rhodomonas salina, Chaetoceros sp., Isochrysis galbana (T-iso) and Nannochloropsis gaditana), in the same biovolume quantity, were exposed to 72h growth-inhibition tests with atrazine and LAS. In all cases, the inhibition effect of atrazine was higher than that of LAS up to two orders of magnitude higher in the case of T. chuii. In a second

B. Debelius; J. M. Forja; A. Del Valls; L. M. Lubián

2008-01-01

369

The “Truth” Behind a Scandal: Jorge Ibargüengoitia’s Las muertas  

Microsoft Academic Search

Social criticism is central to Jorge Ibargüengoitia’s Las muertas (1977). However, it is often overlooked that Ibargüengoitia’s novel can also be considered to be a parody of creative nonfiction,\\u000a particularly of New Journalism. In Las muertas, Ibargüengoitia gives a humorous account of the infamous Poquianchis case (1963–1964) by drawing on the extensive press coverage\\u000a which the case elicited. \\u0009Ibargüengoitia’s borrowing

Charlotte Lange

2009-01-01

370

Stress Protein Responses in South African Freshwater Invertebrates Exposed to Detergent Surfactant Linear Alkylbenzene Sulfonate (LAS)  

Microsoft Academic Search

Stress responses can be measured at various levels of biological organization, from sub-organism through to ecosystem level.\\u000a This study aimed to investigate stress protein induction as a sub-organism level stress response in two South African freshwater\\u000a aquatic macroinvertebrates exposed to detergent linear alkylbenzene sulfonate (LAS). Shrimp Caridina nilotica and limpet Burnupia stenochorias were exposed to a range of LAS concentrations

Andrew K. Gordon; Gregory L. Blatch; Sheril Daniel; Wilhelmine J. Muller

2008-01-01

371

ANÁLISIS DE LAS COMUNIDADES CIENTÍFICAS Y ACADÉMICAS DE LAS CIENCIAS BÁSICAS MÉDICAS Y DE LA SALUD PÚBLICA EN COLOMBIA ¿UNA DIFERENCIA?  

Microsoft Academic Search

El objetivo de este trabajo es caracterizar la dinámica de los recursos humanos en investigación y su producción científica al interior de las comunidades de salud pública y ciencias básicas biomédicas del país. El enfoque de este estudio articula la evaluación del comportamiento de los recursos humanos y el tránsito hacia comunidades científicas, vistos desde la teoría del capital conocimiento

Hernán Jaramillo Salazar; Carolina Lopera Oquendo

2008-01-01

372

Effect of the test media and toxicity of LAS on the growth of Isochrysis galbana.  

PubMed

In this paper, the toxicity of linear alkylbenzene sulfonate (LAS) was evaluated in the marine microalga Isochrysis galbana using data of growth inhibition toxicity tests at 96-h exposure time. Toxicity was examined in standard conditions and by means of the modification of two variables of the test media: (1) the dilution water and (2) the content of nutrients in the test medium. For this purpose, a total of 10 toxicity test were designed: five dilution waters, four natural marine waters and one synthetic seawater; each in two different nutritive conditions, saturated nutrient concentration (SC) by the addition of modified f/2 nutritive medium, and natural nutrient concentration (NC), i.e., without the addition of f/2. At threshold toxicity levels, the dilution waters used in the test and the nutrient concentrations did not affect the toxicity of LAS. At IC50 concentrations, the toxicity of LAS is influenced by both variables: under SC conditions, the toxic effect of LAS diminishes, obtaining in all the tests IC50 > 10 mg/L LAS. Under NC conditions, IC50 concentrations ranging between 3.15 and 9.26 mg/L LAS have been obtained. PMID:18473164

Garrido-Perez, M C; Perales-VargasMachuca, J A; Nebot-Sanz, E; Sales-Márquez, D

2008-05-13

373

40 CFR 51.917 - What is the effective date of designation for the Las Vegas, NV, 8-hour ozone nonattainment area?  

Code of Federal Regulations, 2010 CFR

...effective date of designation for the Las Vegas, NV, 8-hour ozone nonattainment area...effective date of designation for the Las Vegas, NV, 8-hour ozone nonattainment area? The Las Vegas, NV, 8-hour ozone nonattainment...

2010-07-01

374

40 CFR 51.917 - What is the effective date of designation for the Las Vegas, NV, 8-hour ozone nonattainment area?  

Code of Federal Regulations, 2010 CFR

...effective date of designation for the Las Vegas, NV, 8-hour ozone nonattainment area...effective date of designation for the Las Vegas, NV, 8-hour ozone nonattainment area? The Las Vegas, NV, 8-hour ozone nonattainment...

2009-07-01

375

Línea de base del Proyecto de producción ecológica, comercialización y asociatividad de las mujeres en el medio rural: Características de las socias  

Microsoft Academic Search

El siguiente informe presenta los resultados de la evaluación línea de base de un proyecto de Grameen Loja de Ecuador, financiado por el Banco Interamericano de Desarrollo (Convenio de Financiamiento SP\\/SF-07-02-EC. y Cooperación Técnica no Reembolsable ATN\\/SF-1042-EC), cuyo objetivo es mejorar los ingresos y la salud de las mujeres microempresarias emprendedoras y sus familias en el sur del Ecuador, facilitando

Carlos Palán Tamayo

2009-01-01

376

Identification of methyl triclosan and halogenated analogues in male common carp (Cyprinus carpio) from Las Vegas Bay and semipermeable membrane devices from Las Vegas Wash, Nevada  

USGS Publications Warehouse

Methyl triclosan and four halogenated analogues have been identified in extracts of individual whole-body male carp (Cyprinus carpio) tissue that were collected from Las Vegas Bay, Nevada, and Semipermeable Membrane Devices (SPMD) that were deployed in Las Vegas Wash, Nevada. Methyl triclosan is believed to be the microbially methylated product of the antibacterial agent triclosan (2, 4, 4'-trichloro-4-hydroxydiphenyl ether, Chemical Abstract Service Registry Number 3380-34-5, Irgasan DP300). The presence of methyl triclosan and four halogenated analogues was confirmed in SPMD extracts by comparing low- and high-resolution mass spectral data and Kovats retention indices of methyl triclosan with commercially obtained triclosan that was derivatized to the methyl ether with ethereal diazomethane. The four halogenated analogues of methyl triclosan detected in both whole-body tissue and SPMD extracts were tentatively identified by high resolution mass spectrometry. Methyl triclosan was detected in all 29 male common carp from Las Vegas Bay with a mean concentration of 596????g kg- 1 wet weight (ww) which is more than an order of magnitude higher than previously reported concentrations in the literature. The halogenated analogs were detected less frequently (21%-76%) and at much lower concentrations (< 51????g kg- 1 ww). None of these compounds were detected in common carp from a Lake Mead reference site in Overton Arm, Nevada.

Leiker, T. J.; Abney, S. R.; Goodbred, S. L.; Rosen, M. R.

2009-01-01

377

Tailor-made LasR agonists modulate quorum sensing in Pseudomonas aeruginosa.  

PubMed

The primary quorum sensing system in the opportunistic pathogen Pseudomonas aeruginosa is regulated through the synthesis and secretion of N-3-oxo-dodecanoyl-l-homoserine lactone (C12) which binds the transcriptional activator LasR. In this study we report the design, synthesis and biological evaluation of new analogs of C12. Analysis of the autoinducer binding site cavity of LasR revealed a positively charged cavity near the center of bound C12. Accordingly, we synthesized two piperidine-C12 diastereoisomers and tested their biological activity. Both analogs proved to be strong LasR agonists that showed a synergistic effect when presented together with the natural ligand. Moreover, binding of the analogs resulted in phenotypic changes characteristic of QS controlled receptor activation. PMID:24057196

Rabin, Nira; Delago, Antonia; Inbal, Boaz; Krief, Pnina; Meijler, Michael M

2013-10-01

378

An Aquatic Safety Assessment of Linear Alkylbenzene Sulfonate (LAS): Chronic Effects on Fathead Minnows  

Microsoft Academic Search

Life-cycle and embryo-larval toxicity tests were conducted on the fathead minnow (Pimephales promelas) with three commercial linear alkylbenzene sulfonates (LAS), anionic surfactants commonly used in laundry detergents. The no-observed-effect concentration (NOEC), as measured in life-cycle tests or estimated from embryo-larval tests, depended on the mean alkyl chain length of the LAS and was 5.1–8.4, 0.48, and 0.11–0.25 mg\\/liter for C11.2,

William F. Holman; Kenneth J. Macek

1980-01-01

379

After 58 years, an icon on the Las Vegas Strip closes  

NSDL National Science Digital Library

Las Vegas' Sahara Hotel and Casino closing after more than 58 yearshttp://news.blogs.cnn.com/2011/05/16/las-vegas-sahara-hotel-and-casino-closing-after-more-than-58-years/?hpt=C2Las Vegas Historyhttp://www.lasvegassun.com/history/Southern Nevada: The Boomtown Yearshttp://digital.library.unlv.edu/boomtown/Vegas Tripping: Implosionshttp://www.vegastripping.com/implosions/The Neon Museumhttp://neonmuseum.org/All that glitters is not gold, and when it comes to the glittering lights of the Vegas Strip, nothing is permanent. This weekend, the Sahara hotel saw its last guests leave as it ended its 58-year run on the Strip. The hotel was the brainchild of one Milton Prell, a former jewelry salesman who ran a bingo parlor in Montana. In 1952, he opened the Sahara, which he envisioned as a "jewel of the desert". The Sahara was the sixth hotel on the Strip, and with its fantastical Congo Room supper club and Casbar Lounge, it was a flourishing part of the "ring-a-ding-ding" 1950s and 1960s scene in Las Vegas. Characters who were part of the Strip's history included legendary entertainers Ray Bolger, Donald O'Connor, and Louis Prime, who performed there for years with his wife, Keely Smith. While plans for the site are in flux, it is hoped that some of the Sahara's iconic neon signs will end up in the nearby Neon Museum.The first link will take visitors to a nice article from this Saturday's Las Vegas Sun about the closing of the Sahara. The second link leads to piece from CNN's blog which also talks about the recent closing of this famed Strip stalwart. The third link will whisk users away to a terrific site from the Las Vegas Sun which chronicles the highs and lows of the Strip's history. Moving on, the fourth link leads to a nice digital collection from the University of Nevada, Las Vegas which documents the boom years of Southern Nevada through images, documents, and other archival items. The fifth link leads to a rather raucous and fun archive of Strip hotel implosions captured for posterity. Finally, the last link leads to the homepage of The Neon Museum in Las Vegas, which celebrates neon culture in all of its glory.

Grinnell, Max

2011-05-20

380

LA RESPONSABILIDAD SOCIAL DE LAS EMPRESAS TURÍSTICAS: PERCEPCIONES DE LOS ESTUDIANTES  

Microsoft Academic Search

El interés por la Responsabilidad Social Corporativa en el sector turístico queda reflejado por varios hechos. El primero es de naturaleza académica y hace referencia a que en las normas, documentos y propuestas del Espacio Europeo de Educación Superior se le otorga una importancia crítica a que el aprendizaje de competencias conlleven el respeto al medio ambiente y al patrimonio

José Alberto Martínez González

2012-01-01

381

La estructura de mercado del sector de las artes escénicas en España  

Microsoft Academic Search

La diversidad de agentes y de comportamientos, así como la complejidad que encierra la existencia e interrelación de dos mercados, el de la producción y el de la difusión, han dificultado el estudio del sistema escénico español desde perspectivas científicas. Con el objetivo de cubrir parcialmente ese vacío y presentar las especificidades de dicho sistema, el presente trabajo utiliza el

LLUÍS BONET; ANNA VILLARROYA

2009-01-01

382

Vegetation of Grassy Remnants in the Las Vegas Valley, Southern Nevada  

Microsoft Academic Search

The approximately 1000-km2 Las Vegas Valley contains a rich assemblage of unique plant communities in the eastern Mojave Desert. Yet, there is little published documentation of this vegetation as its destruction continues with proceeding urban development. Development has intensified after the 1998 Southern Nevada Public Land Management Act mandated the disposal of federal lands. We document plant communities at four

Jill E. Craig; Scott R. Abella

383

Continuous Hidden Markov Models: Application to automatic earthquake detection and classification at Las Canãdas caldera, Tenerife  

Microsoft Academic Search

A possible interaction of (volcano-) tectonic earthquakes with the continuous seismic noise recorded in the volcanic island of Tenerife was recently suggested. Also recently the zone close to Las Canadas caldera shows unusual high number of near (<25 km), possibly volcano-tectonic, earthquakes indicating signs of reawakening of the volcano putting high pressure on the risk analyst. Certainly for both tasks consistent

Moritz Beyreuther; Roberto Carniel; Joachim Wassermann

2008-01-01

384

Soltando las Amarras - Algunas consideraciones sobre la cancelación de la deuda con el FMI  

Microsoft Academic Search

Este trabajo tiene por objeto analizar dentro de los resultados y proyecciones de la deuda pública, el sentido, impacto y efectos de la decisión gubernamental de cancelar la deuda pública nacional contraída con el FMI. En tal propósito se analizan los motivos que condujeron a la decisión de desendeudarse con el FMI, examinándo las propuestas alternativas a aquella solución, barajadas

Agustin Torres

385

Apuntes sobre la información visual en la formación online de las futuras generaciones  

Microsoft Academic Search

Resumen: La información visual cobra cada vez más importancia en una sociedad en la que la imagen ha ido ganándole terreno al texto en distintos ámbitos. Las nuevas generaciones están cada vez más acostumbradas a la obtención de información a través de la pantalla de cualquier dispositivo que de una publicación impresa. La experiencia de la autora, a través de

María Teresa Sandoval Martín

2008-01-01

386

UN ANÁLISIS COMPARADO DE LOS MODELOS APLICADOS PARA LA FINANCIACIÓN DE LAS UNIVERSIDADES ANDALUZAS Y VALENCIANAS  

Microsoft Academic Search

Hasta fechas relativamente recientes los mecanismos de financiación de tipo incrementalista no suponían graves tensiones a la hora de distribuir fondos entre los diferentes servicios públicos. Pero en el actual contexto de persistente déficit de las Administraciones Públicas el diseño y utilización de sistemas de financiación que intenten racionalizar la asignacion de los recursos cobra un especial protagonismo, sobre todo

José Sánchez; Campillo Dolores; Moreno Herrero

387

POLÍTICA CRIMINAL DE LAS SANCIONES ALTERNATIVAS A LA PRISIÓN: CRITICAS AL DISCURSO OFICIAL  

Microsoft Academic Search

La pena privativa de libertad a través de la reclusión en el establecimiento carcelario, presentada como una opción alternativa y humanizante para el sistema punitivo vigente hasta el siglo XVII, que tenía como base las penas de muerte y corporales, desde su nacimiento se ha demostrado ineficiente para cumplir sus finalidades formalizadas por el ordenamiento, principalmente los que se refieren

Marcelo Nunes Apolinário

2008-01-01

388

DESARROLLO DE UN PROGRAMA DE SIMULACIÓN EN INGENIERÍA DE LAS REACCIONES QUÍMICAS (ECM035)  

Microsoft Academic Search

Resumen: La globalización y el auge de las nuevas tecnologías de información y comunicación y el creciente valor que tiene el conocimiento en la sociedad actual, han impuesto la presencia cada vez mayor de herramientas instruccionales asociadas al uso de plataformas educativas que han generado grandes retos en la educación así como en el docente y el alumno. Debido a

Judith Cuéllar

389

CAPABILITIES OF THE ENVIRONMENTAL MONITORING AND SUPPORT LABORATORY-LAS VEGAS  

EPA Science Inventory

This report describes the present and developing capabilities of the U.S. Environmental Protection Agency's Environmental Monitoring and Support Laboratory in Las Vegas, Nevada. Its purpose is to present comprehensive information in concise form to enable users of the Laboratory'...

390

Tectonic deposition of mercury in the Almadén district, Las Cuevas deposit, Spain  

NASA Astrophysics Data System (ADS)

The Las Cuevas mercury deposit is located in the northern part of the Almadén district, Ciudad Real, Spain. It displays characteristic epigenetic features. A reinterpretation of the geological context of the deposit and a detailed structural analysis indicate that the host rocks at Las Cuevas belong to the same stratigraphic units that host the old Almadén mine, but that they experienced a different tectonic evolution. Two types of ore are distinguished at Las Cuevas: (1) hydraulic breccias in a black quartzite, identical to the San Francisco horizon of the Almadén mine. This ore has been interpreted as syngenetic and is associated with an alkaline explosive volcanic event; and (2) a stockwork composed of horizontal subcritical tension cracks which developed along the contact between black shales and volcanic rocks in the hinge of a drag fold, and which is associated with advanced argillic alteration. Mobilization of mercury from type 1 to type 2 ore was related to a local inversion of the stress field associated with an increase of permeability by self-sealing, which probably occurred during uplift. Las Cuevas is representative of a whole class of mercury deposits hosted within basement rocks.

Jébrak, M.; Hernandez, A.

1995-10-01

391

El papel de las Brigadas Internationales en el cine documental extranjero (1936-1939)  

Microsoft Academic Search

El cine fue utilizado como elemento de propaganda durante la Guerra Civil española. Las Brigadas Internacionales nunca tuvieron una productora cinematográfica propia. Por esta razón, algunos documentales fueron filmados en el Reino Unido, los Estados Unidos y Francia, producidos por organismos progresistas. La estructura interna de los brigadistas no es analizada, pero se destaca su solidaridad en la lucha contra

Magi Crusells

2004-01-01

392

SIMULATION MODELING OF THE SHALLOW GROUND-WATER SYSTEM IN LAS VEGAS VALLEY, NEVADA  

EPA Science Inventory

The vast influx of population began pouring into the Las Vegas Valley in the 1940's the hydrologic regime of the Valley has undergone significant change. This domestic irrigation of vegetation together with wastewater return flows has caused a perennial stream leaving the Valley ...

393

Las Quinas: Un nuevo sitio de la Cultura de La Aguada en San Juan  

Microsoft Academic Search

The study of the Las Quinas rock shelter, in the Iglesia valley (San Juan, Argentina) confirms the existence of cul- tural traits that have been defined for the period of La Aguada influence in the preandean valleys of Iglesia and Calingasta, features such as settlements types, cultivated seeds, and gathering goods, ceramic and textile. Radio- carbon dating was indicated a

Mariano Gambier

2002-01-01

394

Notes on a Critical Edition of Para las seis cuerdas by Jorge Luis Borges  

Microsoft Academic Search

Jorge Luis Borges orchestrated the canonization of his work, culminating in his Obras completas. The traces of this editorial endeavor are effaced in what Borges conceived as his complete works. The analysis of the various editions of Para las seis cuerdas demonstrates that the rationale behind the editorial changes is a conscious effort to present a collection of milongas with

Robert Folger

2001-01-01

395

PERCHLORATE UPTAKE BY SALT CEDAR (TAMARIX RAMOSISSIMA) IN THE LAS VEGAS WASH RIPARIAN ECOSYSTEM  

EPA Science Inventory

Perchlorate ion (CIO4-) has been identified in samples of dormant salt cedar (Tamarix ramosissima) growing in the Las vegas Wash. Perchlorate is an oxidenat, but its reduction is kineticaly hindered. CXoncern over thyrpoid effects caused the Environmental Protection Agency (EPA...

396

Helicopter noise survey performed at Las Vegas, Nevada, 19-21 January, 1984  

Microsoft Academic Search

The FAA conducted a noise measurement survey of helicopter operations at Las Vegas during the Annual Helicopter Association International Convention. The survey was performed during the period of January 19-21, 1984. The purpose of this noise survey was to obtain additional noise data for a number of different helicopter models during normal operations in an urban environment. This survey was

S. R. Albersheim

1984-01-01

397

Modelos vs. dibujos: el caso de la enseñanza de las fuerzas intermoleculares  

Microsoft Academic Search

Resumen: En el presente trabajo se analizan las explicaciones verbales y gráficas confeccionadas por docentes para explicar fenómenos de solubilidad, inmiscibilidad y formación de una emulsión con mezclas de agua, alcohol y aceite. El análisis permite considerar la complejidad de los lenguajes expertos como fuente de obstáculos epistemológicos en la comunicación entre docentes y estudiantes. Finalmente, se propone un marco

Lydia Galagovsky; María Angélica Di Giacomo; Verónica Castelo

398

Científicos que cuestionan los paradigmas dominantes: Algunas implicaciones para la enseñanza de las ciencias  

Microsoft Academic Search

In this work I present the topic of the scientists that challenge dominant paradigms. This reality can help us to deepen in the nature of the science, at the same time that can have applications for science teaching. Palabras clave: Filosofía de la ciencia, paradigmas dominantes, cambio conceptual, resistencia al descubrimiento, enseñanza de las ciencias.

Juan Miguel Campanario

2004-01-01

399

SOURCE AND PATHWAY DETERMINATION FOR BERYLLIUM FOUND IN BECHTEL NEVADA NORTH LAS VEGAS FACILITIES  

Microsoft Academic Search

In response to the report ''Investigation of Beryllium Exposure Cases Discovered at the North Las Vegas Facility of the National Nuclear Security Administration'', published by the U.S. Department of Energy (DOE), National Nuclear Security Administration (NNSA) in August 2003, Bechtel Nevada (BN) President and General Manager Dr. F. A. Tarantino appointed the Beryllium Investigation & Assessment Team (BIAT) to identify

2004-01-01

400

Capital intelectual: un modelo de mediciòn en las empresas del nuevo milenio  

Microsoft Academic Search

Resumen En el mundo globalizado en el que hoy viven las organizaciones, la dirección empresarial ha pasado de reconocer la importancia de los inversionistas, a reconocer el valor de los clientes y de aquéllos que trabajan en la organización. La empresa en sus productos o servicios vende algo más que el producto o servicio, vende un agregado representado por diversos

Juan Manuel Larios Prado

2010-01-01

401

SUELOS DE LA CUENCA DEL SANTO DOMINGO. SECTOR LAS MESAS. (CARACTERIZACIÓN FÍSICO- QUÍMICA). MÉRIDA-VENEZUELA  

Microsoft Academic Search

The soils of the area of Las Mesas, basin Santo Domingo, Mérida state, are conditioned in the fundamental for the position geomorphologic of strong slopes. The action biochemical is the one which permits the construction of the soils in spite of the conditions of discharges precipitation and of moderate temperatures. The soils in accordance with Soil Taxonomy (Soil Survey Staff,

Dolores Gutiérrez; Guido Ochoa; Jajaira Oballos; Juan Carlos Velásquez

402

Geology of the Gualan and Southern Sierra de las Minas Quadrangles, Guatemala  

NASA Astrophysics Data System (ADS)

The Gualan and Sierra de las Minas quadrangles straddle the Motagua Valley fault zone, a major southerly convex fault zone of Nuclear Central America, and the active transform boundary between the North American and Caribbean plates. Two distinctly different pre-Mesozoic metamorphic basement complexes are exposed in the area. The Chuacus Group crops out north of the Motagua Valley. The Las Ovejas Complex crops out south of the valley. Early Tertiary rift basins received clastic deposits of the Subinal Formation. Concurrently, hornblende diorite and La Union pluton granodiorites intruded the Las Ovejas. Sinistral strike slip motion began in the Miocene and the Junquillo pull apart basin formed between the Cabanas and Jubuco faults along the south side of the valley. Las Ovejas Complex rocks between these faults were mylonitized during the faulting. Southerly derived Plio-Quaternary alluvial fans in the Junquillo basin have been offset left laterally as much as 15 to 20 km from their source areas by the Jubuco fault. A shift in the active trace of the Jubuco fault led to uplift of the western Junquillo basin during the Quaternary. The Cabanas fault is now the active plate boundary.

Johnson, K. R.

403

Geophysical constraints on the location and geometry of the Las Vegas Shear Zone, Nevada  

USGS Publications Warehouse

We model the basin configuration beneath Las Vegas Valley, Nevada, on the basis of gravity, drillhole, and seismic reflection data. We locate and characterize the various strands of the Las Vegas Valley Shear Zone (LVVSZ) by variations in basin thickness beneath the valley. The pre-Tertiary bedrock surface is complex, with subbasins buried beneath the flat alluvial surface of the valley. We suggest that these basins are formed from transtensional strain. Subbasins elongated N70??W and N50??W are interpreted as strike-slip basins. The deepest subbasin is 5 km west of Frenchman Mountain and strikes N40??E. This basin probably formed by combined movement on nonparallel strands of the LVVZ and an earlier episode of normal faulting. The basin thickness map constrains the minimum depth of the inferred detachment fault beneath Las Vegas Valley to at least 4 km. Seismic reflection data do not image a detachment fault in the upper 10 km beneath Las Vegas Valley. Our results also illustrate the utility of gravity in determining basinal structures and providing a three-dimensional perspective in areas with limited seismic reflection control.

Langenheim, V. E.; Grow, J. A.; Jachens, R. C.; Dixon, G. L.; Miller, J. J.

2001-01-01

404

Crustal structure in the vicinity of Las Vegas, Nevada, from seismic and gravity observations  

USGS Publications Warehouse

A seismic-refraction profile indicates that the crust of the Earth increases in thickness by as much as 5 km over a horizontal distance of less than 25 km northeast of Las Vegas, Nevada. This feature correlates with a decrease in the Bouguer anomaly and an increase in the average surface altitude.

Roller, John C.

1963-01-01

405

Response-Induced Reversals of Preference in Gambling: An Extended Replication in Las Vegas  

Microsoft Academic Search

Extends previous studies (which used undergraduates in a laboratory setting) of the effects of response mode on information-processing strategies used in gambling decisions in a Las Vegas casino using a professional dealer as E and 44 casino patrons as Ss. As in the laboratory, the casino patrons used different strategies when choosing among pairs of bets than when attaching monetary

Sarah Lichtenstein; Paul Slovic

1973-01-01

406

La evaluación del desempeño de las empresas privatizadas en Colombia: ¿Coincide con la experiencia internacional?  

Microsoft Academic Search

Este estudio pretende evaluar si las empresas que fueron privatizadas en Colombia durante los años 1990 mejoraron sustancialmente su productividad y rentabilidad, como consecuencia de los cambios gerenciales que se debieron dar, o si por el contrario, continuaron en niveles similares, contrariando la hipótesis de que los nuevos dueños propiciarían cambios sustanciales en su estrategia, como lo demuestra la experiencia

Héctor Ochoa Díaz; Jaime Andrés Collazos Rodríguez

2004-01-01

407

El VIH y las ramificaciones para la seguridad alimentaria y la salud infantil en comunidades afectadas  

Microsoft Academic Search

ExtractoLos primeros casos de síndrome de inmunodeficiencia adquirida (SIDA), causada por el virus de la inmunodeficiencia humana (VIH), se identificaron en 1981. Actualmente se estima en 39 millones las personas infectadas en todo el mundo por el virus. Aunque el 64% de estos individuos viven actualmente en la pobreza de África subsahariana, la pandemia se está propagando en estos momentos

Noel W. Solomons; Gwen Ellen O’Donnell

2007-01-01

408

Las habilidades comunicativas en estudiantes de la especialidad contabilidad y finanzas: una propuesta de actuación  

Microsoft Academic Search

Las instituciones universitarias están llamadas a formar profesionales que darán continuidad a la obra social que construimos. La imagen del mismo lleva implícita el dominio de una serie de cualidades que le permitan expresarse correctamente. Un reciente estudio realizado a futuros graduados de quinto año en la especialidad Contabilidad y Finanzas del Centro Universitario Municipal de Lajas acerca del desarrollo

Daylin Yera Jacomino

2011-01-01

409

Methodology for designing air quality monitoring networks: II. Application to Las Vegas, Nevada, for carbon monoxide  

Microsoft Academic Search

An objective methodology presented in a companion paper (Liu et al., 1986) for determining the optimum number and disposition of ambient air quality stations in a monitoring network for carbon monoxide is applied to the Las Vegas, Nevada, area. The methodology utilizes an air quality simulation model to produce temporally-varying air quality patterns for each of a limited number of

J. L. McElroy; J. V. Behar; T. C. Meyers; M. K. Liu

1986-01-01

410

Books by Mail Service; A Conference Report (Las Vegas, Nevada, June 23, 1973).  

National Technical Information Service (NTIS)

When representatives of public libraries with programs to deliver books to patrons by mail met in Las Vegas, Nevada, in June of 1973, the conference brought to a sharp focus the emergence of two different types of books by mail (BBM) programs. One is the ...

C. H. Kim I. M. Sexton

1974-01-01

411

Books by Mail Service; A Conference Report (Las Vegas, Nevada, June 23, 1973).  

ERIC Educational Resources Information Center

|When representatives of public libraries with programs to deliver books to patrons by mail met in Las Vegas, Nevada, in June of 1973, the conference brought to a sharp focus the emergence of two different types of books by mail (BBM) programs. One is the urban or metropolitan program serving the four to six percent of the urban population who are…

Kim, Choong H.; Sexton, Irwin M.

412

METHODOLOGY FOR DESIGNING AIR QUALITY MONITORING NETWORKS: 2. APPLICATION TO LAS VEGAS, NEVADA, FOR CARBON MONOXIDE  

EPA Science Inventory

An objective methodology presented in a companion paper (Liu et al., 1986) for determining the optimum number and disposition of ambient air quality stations in a monitoring network for carbon monoxide is applied to the Las Vegas, Nevada, area. The methodology utilizes an air qua...

413

Between Poverty and a Lifestyle: The Leisure Activities of Homeless People in Las Vegas  

Microsoft Academic Search

Housed people judge homeless people, and in particular their leisure activities, as indicators of whether that person has chosen a “homeless lifestyle” and therefore deserves homelessness. To achieve a more complex understanding of contemporary homelessness, the author conducted ethnographic fieldwork over ten months in Las Vegas, Nevada, interviewing and participant observing dozens of homeless men and women, including observations of

Kurt Borchard

2010-01-01

414

LIGHTNING PERFORMANCE OF TRANSMISSION LINE LAS CLARITAS - SANTA ELENA UP 230 KV  

Microsoft Academic Search

The following work is calculated the lightning performance of transmission line Las Claritas - Santa Elena up 230 kV. This line has the particularity that goes through an area with high keraunic level and resistivity soil, where supports (towers or poles) are placed. When the commercial operation of the line begin, some outages by atmospheric discharges happen and to correct

415

Probabilistic risk assessment for linear alkylbenzene sulfonate (LAS) in sewage sludge used on agricultural soil.  

PubMed

Deterministic and probabilistic risk assessments were developed for commercial LAS in agricultural soil amended with sewage sludge. The procedure done according to ILSI Europe's Conceptual Framework [Schowanek, D., Carr, R., David, H., Douben, P., Hall, J., Kirchmann, H., Patria, L., Sequi, P., Smith, S., Webb, S.F., 2004. A risk-based methodology for deriving quality standards for organic contaminants in sewage sludge for use in agriculture-conceptual Framework. Regul. Toxicol. Pharmacol. 40 (3), 227-251], consists of three main steps. First, the most sensitive endpoint was determined. This was found to be the chronic ecotoxicity of LAS to soil invertebrates and plants. Additional endpoints, such as potential for plant uptake and transfer in the food chain, leaching to groundwater, surface erosion run-off, human health risk via drinking water, plant consumption and soil ingestion were also systematically evaluated but were all assessed to be of little toxicological significance. In the second step, a back-calculation was conducted from the Predicted No-Effect Concentration in soil (PNECsoil) to a safe level of LAS in sludge (here called 'Sludge Quality Standard'; SQS). The deterministic approach followed the default agricultural soil exposure scenario in the EU-Technical Guidance Document (TGD). The SQS for LAS was calculated as 49 g/kg sludge Dry Matter (DM). In order to assess the potential variability as a result of varying agricultural practices and local environmental conditions, two probabilistic exposure assessment scenarios were also developed. The mean SQS was estimated at 55 and 27.5 g/kg DM for the homogeneous soil mixing and soil injection scenarios, respectively. In the final step, the resulting SQS values were evaluated for consistency and relevance versus available information from agricultural experience and field tests. No build-up, adverse impact on soil fertility, agronomic performance, or animal/human health have been reported for agricultural fields which have received sludge with high LAS levels for up to 30 years. Distribution statistics of LAS concentrations in anaerobically digested sewage sludge measured across Europe were created (mean value: 5.56 g LAS/kg sludge DM). When compared to the above mean SQS values, adequate risk characterisation ratios of 0.08-0.2 were found. The 'ecological risk' parameter calculated for anaerobic sludge from the probabilistic approaches was below 3%. A regulatory Limit Value for LAS of 2.60 g/kg sludge DM was originally proposed in the 3rd Draft of the Working Document on Sludge [CEC, 2000b. Working Document on Sludge. Third Draft, Brussels 27 April 2000, DG. Environment, 18 p.]. The current assessment, based on an updated dataset and a refined assessment procedure, suggests that the need for a limit value for LAS in sewage sludge cannot be substantiated on a risk basis. PMID:17967498

Schowanek, Diederik; David, Helen; Francaviglia, Rosa; Hall, Jeremy; Kirchmann, Holger; Krogh, Paul Henning; Schraepen, Nathalie; Smith, Stephen; Wildemann, Tanja

2007-09-19

416

Comparación de dos sistemas de medida de las concentraciones de glucosa en líquido cefalorraquídeo en la anestesia intradural hiperbara  

Microsoft Academic Search

® (Beckman Coulter) con las reali- zadas con un glucómetro Ascensia EliteXL&Elite ® durante la anestesia espinal, después de administrar 10 mg de bupivacaína hiperbara para así disponer de un método rápido y fiable al medir las cifras de glucorra- quia durante una anestesia espinal continua y seguir su evolución. PACIENTES Y MÉTODOS: Estudio prospectivo de 34 pacientes bajo anestesia

J. Sánchez Morillo; J. Soliveres Ripoll; N. Estañ Capell; C. Solaz Roldán; P. Viñals Bellido; C. Quiñones Torrelo

2007-01-01

417

Public relations and strategic issues management challenges in Venezuela: A discourse analysis of Crystallex International Corporation in Las Cristinas  

Microsoft Academic Search

This investigation, using critical discourse analysis (CDA), seeks to develop an understanding of strategic issues management through Crystallex International Corporation’s discursive construction and management of legitimacy in the Las Cristinas mine in Venezuela. This analysis of the Las Cristinas case unearths elements that could provide useful insights about the Latin American environment in general and public relations efforts in that

Karina Peñaloza de Brooks; Damion Waymer

2009-01-01

418

Linear alkylbenzene sulfonate (LAS) in water of Lake Dianchi--spatial and seasonal variation, and kinetics of biodegradation.  

PubMed

For the purpose of elucidating the environmental characteristics of anion surfactants [linear alkylbenzene sulfonates (LAS)] in the water of Lake Dianchi, a sampling investigation in the field from October 2006 to July 2007 and a batch of biodegradation experiments in the laboratory were carried out. The results showed that concentrations of LAS ranged from 18.6 to 260.1 ?g L(-1), and the average concentration was 52.6 ?g L(-1) in Lake Dianchi. The highest concentrations of LAS were found in the Northwest region, and the distribution of LAS varied through seasons, with much lower concentrations in fall than in any other seasons. LAS can be primarily biodegraded by microorganisms in the lake water, and the percentage of degradation was >97% after 28 days. Biodegradation of LAS was well-fitted with the kinetic model presented in this paper, and the half-lives ranged from 3.2 to 16.3 days. Temperature, pH, and initial concentrations could affect the biodegradation of LAS, among which temperature was the major factor influencing on biodegradation of LAS in water of Lake Dianchi. PMID:20072810

Wang, Zhi; Xiao, Bangding; Wu, Xingqiang; Tu, Xinhai; Wang, Yingcai; Sun, Xiaolei; Song, Lirong

2010-01-14

419

Effect of linear alkylbenzene sulfonate (LAS) on ion transport and intracellular calcium in kidney distal epithelial cells (A6)  

Microsoft Academic Search

Linear alkylbenzene sulfonate (LAS) is found in near-shore environments receiving wastewater from urban treatment plants in a concentration reported to have physiological and toxic effect on aquatic organisms. The aim of this study was to investigate the effect LAS on ion transport and homeostasis in epithelia cells. A6 cells form a polarised epithelium when grown on permeable supports, actively absorb

H. F Bjerregaard; S Stærmose; J Vang

2001-01-01

420

Acute Toxicity of LAS Homologues in Marine Microalgae: Esterase Activity and Inhibition Growth as Endpoints of Toxicity  

Microsoft Academic Search

The toxicity of two linear alkylbenzene sulfonate (LAS) homologues (C10 and C13) was evaluated in four marine microalgae (Nannochloropsis gaditana, Tetraselmis suecica, Rhodomonas salina, and Isocrysis galbana), using growth inhibition rate and esterase activity (measured by flow cytometry) as endpoints. The inhibitor effect was higher for the C13 LAS homologue than for C11, in both responses analyzed. When both endpoints

M. Hampel; I. Moreno-Garrido; C. Sobrino; L. M. Lubián; J. Blasco

2001-01-01

421

77 FR 28569 - Reorganization and Expansion of Foreign-Trade Zone 89 Under Alternative Site Framework, Las Vegas...  

Federal Register 2010, 2011, 2012, 2013

...Foreign-Trade Zone 89 Under Alternative Site Framework, Las Vegas, NV Pursuant to its authority under the Foreign-Trade Zones...area of Clark County, Nevada, within and adjacent to the Las Vegas U.S. Customs and Border Protection port of entry, FTZ...

2012-05-15

422

Intensidad innovadora, permanencia exportadora, y destino de las exportaciones:análisis para una muestra de empresas de Cali  

Microsoft Academic Search

En este estudio se analiza la relación entre la exposición a los mercados internacionales (medida por medio de las exportaciones a los países desarrollados) y la innovación (en procesos, productos, diseño, empaque, organización y nuevas tecnologías). Básicamente, se busca estudiar la hipótesis de que las empresas realizan un mayor esfuerzo innovador en la medida en que enfrentan la competencia en

Alexander Correa Ospina

2005-01-01

423

Cómo medir la quiebra de las empresas en Santander, el modelo logístico: una herramienta para evaluar el riesgo de quiebra  

Microsoft Academic Search

Las propuestas contenidas en el documento del Nuevo Acuerdo de Capital de Basilea, para medir el riesgo de crédito, sirven de base para medir también el riesgo de quiebra de las empresas con base en la utilización de ratios financieros internos. En la práctica se presentan situaciones en la que es necesario tomar decisiones de acuerdo con el comportamiento de

José Joaquín Alzate Marín

2008-01-01

424

Degradation of lineal alkylbenzene sulphonate (LAS) in an acidogenic reactor bioaugmented with a Pseudomonas aeruginosa (M113) strain.  

PubMed

The degradation of of lineal alkylbenzene sulphonate (LAS) was studied in a two-stage anaerobic system where the acidogenic reactor was bioaugmented with a strain of Pseudomonas aeruginosa (M113). This is a strain, which under aerobic and denitrifying conditions uses LAS as carbon source. Results show that LAS was only degraded within the acidogenic stage while in the methanogenic reactor there was no degradation and eventually there was an inhibition due to a LAS accumulation in the sludge. During the experiment, the M113 strain remained in the acidogenic conglomerate (at around 10(4) CFU/mL) although there is no evidence of their involvement in LAS degradation. PMID:11575083

Almendariz, F J; Meráz, M; Soberón, G; Monroy, O

2001-01-01

425

Effect of linear alkylbenzene sulfonate (LAS) and atrazine on marine microalgae.  

PubMed

Five marine microalgae (Tetraselmis chuii, Rhodomonas salina, Chaetoceros sp., Isochrysis galbana (T-iso) and Nannochloropsis gaditana), in the same biovolume quantity, were exposed to 72h growth-inhibition tests with atrazine and LAS. In all cases, the inhibition effect of atrazine was higher than that of LAS up to two orders of magnitude higher in the case of T. chuii. In a second part of the study, initial cellular densities for each microalga strain and fixed organic compound concentration were varied, and results show density has a clear influence in growth inhibition tests. Finally, the sum of all data obtained in the study was expressed in terms of "toxic cellular quota" (mass of chemical substance per cell). The result was a sigmoid curve with a good fit, including the two main factors in toxicity tests, initial cellular density and contaminant concentration. This toxic cellular quota exhibits a general tendency to increase with cell volume/size. PMID:18331743

Debelius, B; Forja, J M; Del Valls, A; Lubián, L M

2008-03-10

426

Marine microalgae toxicity test for linear alkylbenzene sulfonate (LAS) and alkylphenol ethoxylate (APEO).  

PubMed

Different microalgal species have been used in growth-inhibition tests to determine the toxic concentrations of anionic and non-ionic surfactants to phytoplankton. The species used were selected from different taxonomic groups, all of considerable ecological relevance to marine environments. The toxicity of the C13 LAS homologue to the microalgal species selected was usually one order of magnitude greater than that of the C11 homologue. The toxicity of a commercial LAS mixture to different microalgal species was also checked. For this material and C. gracilis, cellular counting by means of a Neubauer chamber and by use of a flow cytometer were compared; differences between the two methods were insignificant. The toxicity of decaethoxylated nonylphenol non-ionic surfactant to C. gracilis was also checked; the EC50 value for this compound was 1.0 mg L(-1). PMID:11760055

Moreno-Garrido, I; Hampel, M; Lubián, L M; Blasco, J

2001-10-01

427

Sealing 304L to lithia-alumina-silica (LAS) glass-ceramics  

SciTech Connect

The formation of a crack-free between 300 series stainless steel and a glass-ceramic is difficult owing to the high coefficients of thermal expansion of the stainless steels. Lithia-alumina-silica (LAS) glass-ceramics were successfully developed and sealed to 304L stainless steel. These crack-free seals were fabricated by two techniques: by adjusting the parent glass composition (reducing the Al{sub 2}O{sub 3} content), or by adjusting the sealing/crystallization cycle. All seals were hermetic, with leak rates < 10{sup -8} cc/sec STP helium. CTE and alloy yield strengths are given which show the feasibility of using these materials to make feedthroughs, pyrotechnic components, etc. Metallography, SEM, and wavelength dispersive spectroscopy show the quality and integrity of the glass-ceramic/stainless steel interface. These data are compared to those on the Inconel 718/LAS-glass seal system.

Moddeman, W.E.; Pence, R.E.; Massey, R.T.; Cassidy, R.T. [EG and G Mound Applied Technologies, Miamisburg, OH (United States); Kramer, D.P. [EG and G, Inc., Albuquerque, NM (United States). Electronic Components Div.

1989-12-31

428

Geologic Interpretation of the Las Vegas Valley Based on Industry Seismic Reflection Data  

NASA Astrophysics Data System (ADS)

Las Vegas Valley, NV is located in the southern Basin and Range Province where the basin was formed by the Las Vegas Valley Shear Zone as well as by several thrust and normal faulting events that occurred by Cenozoic time. The geology and tectonic setting in the Las Vegas region is poorly understood given the fact that many structures have been covered by the constant growth of the City. National studies of ground motion and amplification of seismic energy placed Nevada third in the list of states having the potential for loss of life and property due to earthquakes. The Las Vegas area has a high potential for strong ground shaking due its thick basin fill and associated amplification. Due to the amplification effects within the Valley, moderate nearby quakes or large distant quakes will produce a large amount of damage in the Valley. Las Vegas, though not known for its earthquakes, has numerous micro quakes and an active seismic history. In a study using HAZUS to predict damage associated with a M6.9 earthquake, the loss would be billions of dollars with thousands of lives lost. Long-term economic loss would be in the several billions of dollars. Recently, several normal faults, which have the potential to produce a M6.5 to 7.0 earthquake, were reclassified as active tectonic fault with Quaternary movement. As a result, there has been increased effort to understand the Las Vegas Valley and to assess its potential for seismic hazards. One such effort included acquiring industry reflection profiles that cross the Valley. In the 1980's, north/south and east/west trending reflection lines with intersecting tie points were placed between Frenchman Mountain to the East and Spring Mountains to produce seismic profiles using Vibroseis. The profiles, which are over 200 kilometers in length and extend down to 5 s in time or approximately 15 km depth, will provide a tie between the surface work that is currently being conducted and the crustal velocity models that are being calculated to produce a seismic hazard potential for the Las Vegas Valley. The quality of the Vibroseis data is very high. We have been able to locate the basin/bedrock contact as well as several faults that cut the sections. All of which have been mapped on the shot point map. Most of the faults appear to be normal faults listric in character that trend north-south paralleling the structure of the southern Basin and Range. Basin geometry and associated minor folding, which have been truncated by minor faulting, can be seen across the profiles. Some faults can be seen as tectonic in origin while others are merely subsidence faulting from basin settling. With this new data we will identify structures that could potentially focus energy in the sub-surface adding to our growing knowledge of the basin geometry. In addition, this data will be incorporated into the seismic hazard model that is being developed for the Las Vegas Valley and will provide very detailed geologic information that has not been previously available.

Hirsch, A.; Snelson, C. M.

2003-12-01

429

Bifurcación de las soluciones de vientos impulsados por radiación en estrellas Be: formación de líneas  

NASA Astrophysics Data System (ADS)

Se ha estudiado la topología de la ecuación hidrodinámica no-lineal que describe el perfil de velocidades de vientos impulsados por radiación en estrellas tempranas. Al aplicar este modelo a estrellas Be se encuentra que existen dos tipos De soluciones: la estándar, que describe el viento polar, y una nueva, que describe un viento más denso y lento y que explicaría el disco que se encuentra alrededor de estos objetos. Existe una región de transición en donde ambas soluciones coexisten (bifurcación}). Ambas soluciones satisfacen en esta región las mismas condiciones de borde. Para estas dos soluciones se han obtenido los perfiles de líneas de hidrógeno del visible y del IR, resolviendo el transporte de radiación en el ``comoving frame". Para la solución estándar, se obtienen perfiles con componentes en emisión, mientras que para la nueva solución se obtienen perfiles en absorción. Se comparan cualitativamente los resultados con las observaciones.

Curé, M.; Rial, D.; Cidale, L.; Venero, R.

430

Quorum-Sensing-Negative (lasR) Mutants of Pseudomonas aeruginosa Avoid Cell Lysis and Death  

Microsoft Academic Search

In Pseudomonas aeruginosa, N-acylhomoserine lactone signals regulate the expression of several hundreds of genes, via the transcriptional regulator LasR and, in part, also via the subordinate regulator RhlR. This regulatory network termed quorum sensing contributes to the virulence of P. aeruginosa as a pathogen. The fact that two supposed PAO1 wild-type strains from strain collections were found to be defective

Karin Heurlier; Valerie Denervaud; Marisa Haenni; Lionel Guy; Viji Krishnapillai; Dieter Haas

2005-01-01

431

Pasado, presente y futuro de las dimensiones pública y social en el desarrollo conceptual del marketing  

Microsoft Academic Search

Resumen  Bien sabido es lo conveniente que resulta delimitar conceptual y metodológicamente un fenómeno o circunstancia antes de proceder\\u000a a su estudio, afirmación que cobra pleno sentido si a lo que se está haciendo referencia es a las dimensiones páblica y social\\u000a del marketing. A partir de dicho planteamiento, en el presente trabajo se lleva a cabo un análisis de la

José Luis Vézquez Burguete

2004-01-01

432

Formation of soil macropores and preferential migration of linear alkylbenzene sulfonate (LAS) in soils  

Microsoft Academic Search

Effects of freeze-thaw and wet-dry cycles on the formation of soil macropores and preferential flow under simulative conditions in the laboratory, and preferential migration of linear alkylbenzene sulfonate (LAS) in paddy and soybean soils in field lysimeters were studied. Results showed that both freeze-thaw and wet-dry cycles could cause macropores and preferential flow in soils and that the former was

Ziqing Ou; Liangqing Jia; Haiyan Jin; Ayfer Yediler; Xia Jiang; Antonius Kettrup; Tieheng Sun

1999-01-01

433

Effect of the test media and toxicity of LAS on the growth of Isochrysis galbana  

Microsoft Academic Search

In this paper, the toxicity of linear alkylbenzene sulfonate (LAS) was evaluated in the marine microalga Isochrysis galbana using data of growth inhibition toxicity tests at 96-h exposure time. Toxicity was examined in standard conditions and by\\u000a means of the modification of two variables of the test media: (1) the dilution water and (2) the content of nutrients in the

M. C. Garrido-Perez; J. A. Perales-VargasMachuca; E. Nebot-Sanz; D. Sales-Márquez

2008-01-01

434

Marine microalgae toxicity test for linear alkylbenzene sulfonate (LAS) and alkylphenol ethoxylate (APEO)  

Microsoft Academic Search

Different microalgal species have been used in growth-inhibition tests to determine the toxic concentrations of anionic and non-ionic surfactants to phytoplankton. The species used were selected from different taxonomic groups, all of considerable ecological relevance to marine environments. The toxicity of the C13 LAS homologue to the microalgal species selected was usually one order of magnitude greater than that of

I. Moreno-Garrido; M. Hampel; L. M. Lubián; J. Blasco

2001-01-01

435

Exposure of the marine deposit feeder Hydrobia ulvae to sediment associated LAS  

Microsoft Academic Search

Linear Alkylbenzene Sulfonates (LAS) effects (mortality, egestion rate, behaviour) on the marine deposit feeder Hydrobia ulvae were assessed in whole-sediment and water-only systems. The results were combined with a bioenergetic-based kinetic model of exposure pathways to account for the observed toxicity. The 10-d LC50 value based on the freely dissolved fraction was 9.3 times lower in spiked sediment (0.152 ± 0.001 (95%

A. Mauffret; A. Rico-Rico; A. Temara; J. Blasco

2010-01-01

436

Site response zones and short-period earthquake ground motion projections for the Las Vegas Basin  

Microsoft Academic Search

A deterministic seismic hazard analysis was conducted to address the effect of local soil conditions on earthquake-induced\\u000a strong ground motion in the Las Vegas Basin, Nevada (US). Using a large geological and geotechnical database, two response\\u000a units were defined: a fine-grained unit, predominantly clay; and a coarse-grained unit, predominantly gravel. A moderate number\\u000a of high-quality shallow shear wave velocity measurements

Barbara Luke; Ying Liu

2008-01-01

437

Novel dihydroquinoline-based MABAs; clues to the identity of LAS-190792: evaluation of WO20111411802.  

PubMed

Bifunctional aromatic compounds are claimed to contain a ?(2) agonist pharmacophore linked by a flexible lipophilic spacer incorporating a trans-4-aminocyclohexanol group to a muscarinic antagonist pharmacophore. The compounds display nanomolar affinity at both ?(2) and M(3) receptors and a prolonged duration of action in animal models. This application is the first from Almirall claiming such compounds although it has recently disclosed that LAS-190792 is progressing toward clinical development. PMID:22251094

Norman, Peter

2012-01-18

438

Giant gas bubbles in a rheomorphic vent fill at the Las Cañadas caldera, Tenerife (Canary Islands)  

Microsoft Academic Search

During rheomorphism subsequent to fallout deposition, a portion of the densely welded fallout of the La Grieta Member flowed\\u000a back into the vent from where it was erupted, while the rest of it flowed down the outer slopes of the Las Cañadas caldera\\u000a in Tenerife. The welded fallout and conduit-vent structure are physically connected and constitute a rare example of

Carles Soriano; Daniele Giordano; Inés Galindo; Marcel Hürlimann; Paola Ardia

2009-01-01

439

Longitudinal-acoustic-phonon softening in YS, LaS, and CeSe  

Microsoft Academic Search

The nonorthogonal tight-binding method of Varma and Weber is used to calculate the phonon spectra of YS, LaS, and CeSe, which exhibit strong anomalies in the longitudinal-acoustic branch, especially near the L point, where it crosses the transverse ones. The latter feature is found to arise from metal-metal interactions, which have their origin in the predominantly metal-derived electronic energy bands

M. M. Steiner; H. Eschrig; R. Monnier

1992-01-01

440

Spatial and temporal variability in fire occurrence within the Las Bayas Forestry Reserve, Durango, Mexico  

Microsoft Academic Search

Patterns of fire occurrence within the Las Bayas Forestry Reserve, Mexico are analyzed in relation to variability in climate,\\u000a topography, and human land-use. Significantly more fires with shorter fire return intervals occurred from 1900 to 1950 than\\u000a from 1950 to 2001. However, the frequency of widespread fire years (25% filter) was unchanged over time, as widespread fires\\u000a were synchronized by

S. A. Drury; T. T. Veblen

2008-01-01

441

Sealing 304L to lithia-alumina-silica (LAS) glass-ceramics  

Microsoft Academic Search

The formation of a crack-free between 300 series stainless steel and a glass-ceramic is difficult owing to the high coefficients of thermal expansion of the stainless steels. Lithia-alumina-silica (LAS) glass-ceramics were successfully developed and sealed to 304L stainless steel. These crack-free seals were fabricated by two techniques: by adjusting the parent glass composition (reducing the AlâOâ content), or by adjusting

W. E. Moddeman; R. E. Pence; R. T. Massey; R. T. Cassidy; D. P. Kramer

1989-01-01

442

Probabilistic risk assessment for linear alkylbenzene sulfonate (LAS) in sewage sludge used on agricultural soil  

Microsoft Academic Search

Deterministic and probabilistic risk assessments were developed for commercial LAS in agricultural soil amended with sewage sludge. The procedure done according to ILSI Europe’s Conceptual Framework [Schowanek, D., Carr, R., David, H., Douben, P., Hall, J., Kirchmann, H., Patria, L., Sequi, P., Smith, S., Webb, S.F., 2004. A risk-based methodology for deriving quality standards for organic contaminants in sewage sludge

Diederik Schowanek; Helen David; Rosa Francaviglia; Jeremy Hall; Holger Kirchmann; Paul Henning Krogh; Nathalie Schraepen; Stephen Smith; Tanja Wildemann

2007-01-01

443

LA INFLUENCIA DE LAS POLÍTICAS DE RESPONSABILIDAD SOCIAL Y LA PERTENENCIA A REDES DE COOPERACIÓN EN EL CAPITAL RELACIONAL Y ESTRUCTURAL DE LAS MICROEMPRESAS \\/ THE INFLUENCE OF SOCIAL RESPONSIBILITY POLICIES AND BELONGING TO COOPERATION NETWORKS IN THE RELATIONAL AND STRUCTURAL CAPITAL OF MICRO-ENTERPRISES  

Microsoft Academic Search

Las microempresas presentan algunos atributos que las distinguen de las grandes empresas y de los que se derivan algunos inconvenientes a la hora de adoptar principios y políticas de responsabilidad social. Sin embargo, los principios de responsabilidad social pueden y deben integrarse en cualquier tipo de organización, incluida la microempresa. En este trabajo, se estudia cómo las redes de cooperación

Sonia Benito Hernández; Pablo Esteban Sánchez

2012-01-01

444

Quantifying multi-temporal urban development characteristics in Las Vegas from Landsat and ASTER data  

USGS Publications Warehouse

Urban development has expanded rapidly in Las Vegas, Nevada of the United States, over the last fifty years. A major environmental change associated with this urbanization trend is the transformation of the landscape from natural cover types to increasingly anthropogenic impervious surface. This research utilizes remote sensing data from both the Landsat and Terra-Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instruments in conjunction with digital orthophotography to estimate urban extent and its temporal changes by determining sub-pixel impervious surfaces. Percent impervious surface area has shown encouraging agreement with urban land extent and development density. Results indicate that total urban land-use increases approximately 110 percent from 1984 to 2002. Most of the increases are associated with medium-to high-density urban development. Places having significant increases in impervious surfaces are in the northwestern and southeastern parts of Las Vegas. Most high-density urban development, however, appears in central Las Vegas. Impervious surface conditions for 2002 measured from Landsat and ASTER satellite data are compared in terms of their accuracy. ?? 2008 American Society for Photogrammetry and Remote Sensing.

Xian, G.; Crane, M.; McMahon, C.

2008-01-01

445

Surficial geology and distribution of post-impoundment sediment in Las Vegas Bay, Lake Mead  

USGS Publications Warehouse

Sidescan sonar imagery and seismic-reflection profiles were collected in the northwestern part of Las Vegas Bay to map the distribution and volume of sediment that has accumulated in this part of Lake Mead since impoundment. The mapping suggests that three ephemeral streams are the primary source of this sediment, and of these, Las Vegas Wash is the largest. Two deltas off the mouth of Las Vegas Wash formed at different lake elevations and account for 41% of the total volume of post-impoundment sediment within the study area. Deltas off the other two washes (Gypsum and Government) account for only 6% of the total volume. The sediment beyond the front of the deltas is primarily mud, and it only occurs in valley floors, where it forms a flat-lying blanket that is mostly less than 1.5 m thick. Although a thin layer, the fine-grained sediment accounts for approximately 53% of the total post-impoundment sediment volume of 5.7 x 106 m3 that has accumulated in the study area. This sediment appears to have been transported several kilometers from the river sources by density flows.

Twichell, David C.; Cross, VeeAnn A.; Rudin, Mark J.; Parolski, Kenneth F.; Rendigs, Richard R.

2001-01-01

446

Phenotype of FOXP2 haploinsufficiency in a mother and son.  

PubMed

Disruptions in FOXP2, a transcription factor, are the only known monogenic cause of speech and language impairment. We report on clinical findings for two new individuals with a submicroscopic deletion of FOXP2: a boy with severe apraxia of speech and his currently moderately affected mother. A 1.57?Mb deletion on chromosome 7q31 was detected by array comparative genomic hybridization (aCGH). In addition to FOXP2, the patients' deletion involves two other genes, MDFIC and PPP1R3A, neither of which has been associated with speech or language disorders. Thus, findings for these two family members provide informative phenotypic information on FOXP2 haploinsufficiency. Evaluation by a clinical geneticist indicated no major congenital anomalies or dysmorphic features. Evaluations by a clinical psychologist and occupational therapist indicated cognitive-linguistic processing and sensorimotor control deficits, but did not support a diagnosis of autism spectrum disorder. Evaluation by clinical and research speech pathologists confirmed that both patients' speech deficits met contemporary criteria for apraxia of speech. Notably, the patients were not able to laugh, cough, or sneeze spontaneously, replicating findings reported for two other FOXP2 cases and a potential diagnostic sign of nonsyndromic apraxia of speech. Speech severity findings for the boy were not consistent with the hypothesis that loss of maternal FOXP2 should be relatively benign. Better understanding of the behavioral phenotype of FOXP2 disruptions will aid identification of patients, toward an eventual understanding of the pathophysiology of syndromic and nonsyndromic apraxia of speech. PMID:22106036

Rice, Gregory M; Raca, Gordana; Jakielski, Kathy J; Laffin, Jennifer J; Iyama-Kurtycz, Christina M; Hartley, Sigan L; Sprague, Rae E; Heintzelman, Anne T; Shriberg, Lawrence D

2011-11-21

447

EVALUATION OF PAUL BERGSOE AND SON SECONDARY LEAD SMELTER  

EPA Science Inventory

This report presents the findings of an investigation performed to obtain data concerning fugitive and workroom emissions from secondary lead smelters. The results are being used within both NIOSH and EPA as part of a larger effort to define the potential workplace/environmental ...

448

Türkiye ?çsu Bal?klar?n?n Son Sistematik Durumu  

Microsoft Academic Search

ABSTRACT Inthis study, a great number of works about the systematic of Turkish inland water fishes published since 1856 are reviewed. Besides, the developments and changes that have occured in this field are put forward in the historical process. Based on the results obtained, it has been specified that 236 species and subspecies which belong to 26 families live in

Mustafa Kuru

449

The Effect of Sons and Daughters on Parental Weight  

Microsoft Academic Search

The social environment is thought to exert a strong influence on an individual's body weight. There is evidence, for example, that social factors such as proximity to fast food restaurants (Chou, Grossman, and Saffer 2004; Dunn 2008) and the degree to which mothers work outside the home (Anderson, Butcher, and Levine 2003) contribute to adult and children's weight gain. In

Genevieve Pham-Kanter

2010-01-01

450

What Carnot's Father Taught His Son about Thermodynamics  

ERIC Educational Resources Information Center

|The historical development of the classical postulates of the second law of Thermodynamics can be traced back to the book by Sadi Carnot, "Reflections on the motive power of fire." While unique in its own right and in some sense revolutionary, the book starts with an analogy between heat engines and waterwheels. Waterwheels were common engines of…

Muller, Erich A.

2012-01-01

451

The Effect of Parents' Attitudes on Sons' Marriage Timing  

ERIC Educational Resources Information Center

|Theories of family stability and change, demographic processes, and social psychological influences on behavior all posit that parental attitudes and beliefs are a key influence on their children's behavior. We have evidence of these effects in Western populations, but little information regarding this social mechanism in non-Western contexts.…

Jennings, Elyse A.; Axinn, William G.; Ghimire, Dirgha J.

2012-01-01

452

Listening to Oedipus: two poems by sons about fathers.  

PubMed

Using the writings of Thomas Ogden, Donald Spence, Jessica Benjamin, Roy Schafer, Evelyn Schwaber, and others, the author discusses the "kinship" between poets and psychoanalysts. The author also attempts to demonstrate how reading and listening to poetry can greatly enhance analytic listening, as well as illuminate how language that is contained within a guiding structure, such as a poem or an analysis, can "surprise" us into new awareness and meaning. Two poems are chosen, in which the speakers describe their relationships with their fathers in order to evoke oedipal associations. A brief discussion follows of how contemporary analysts are using intersubjective and relational lenses in order to expand on and revise traditional oedipal metaphor and theory and capture new levels of meaning. Each poem is then analyzed to underline how the sounds and selection, as well as sense of language, reveal the speaker's inner world and process. Poetry provides a mirror for the increasing richness, scope, and dialectical play that can be found in contemporary psychoanalysis. PMID:15953785

Wallach, Mary

2005-01-01

453

Behavioral choice across leech species: chacun à son goût.  

PubMed

At any one time, animals are simultaneously bombarded with many sensory stimuli, but they typically choose to respond to only a few of them. We used multidimensional analysis to determine the behavioral responses of six species of leeches to stimulation, as the responses are affected by species identity, diet, behavioral state and stimulus location. Our results show that each of the species tested while not feeding displayed remarkably similar behaviors in response to tactile stimulation of the surface of the body. When not feeding, stimulus location was the most reliable factor in determining behavioral response. While feeding, the three sanguivorous (bloodsucking) species tested ignored stimulation, whereas the three carnivorous leeches abandoned feeding in favor of locomotory responses, regardless of phylogenetic relationships. In the sanguivorous leeches, feeding abolished all mechanically elicited responses and mechanical stimulation in turn had no effect on feeding. We also show that the behavioral hierarchy of leeches was fixed and unchanging even in species that can consume both a carnivorous and a sanguivorous diet. PMID:20348348

Gaudry, Q; Ruiz, N; Huang, T; Kristan, W B; Kristan, W B

2010-04-01

454

Boys into Men: Raising Our African American Teenage Sons.  

ERIC Educational Resources Information Center

This guide to rearing African American boys offers simple and effective strategies for problem-solving, improving communication, and instilling a positive racial identity. The book draws on strong African American family values and cultural and spiritual strengths. The chapters are: (1) "You Must Act As If It Is Impossible To Fail: Challenges in…

Boyd-Franklin, Nancy; Franklin, A. J.

455

Women infected with parasite Toxoplasma have more sons  

Microsoft Academic Search

Abstract The boy-to-girl ratio at birth (secondary sex ratio) is around 0.51 in most populations. The sex ratio varies between societies and may be influenced by many factors, such as stress and immunosuppression, age, primiparity, the sex of the preceding siblings and the socioeconomic,status of the parents. As parasite infection affects many,immunolog- ical and physiological parameters of the host, we

Š. k A?ková; D. Frynta; J. Flegr

456

Women infected with parasite Toxoplasma have more sons  

Microsoft Academic Search

The boy-to-girl ratio at birth (secondary sex ratio) is around 0.51 in most populations. The sex ratio varies between societies\\u000a and may be influenced by many factors, such as stress and immunosuppression, age, primiparity, the sex of the preceding siblings\\u000a and the socioeconomic status of the parents. As parasite infection affects many immunological and physiological parameters\\u000a of the host, we

Š. Ka?ková; J. Šulc; K. Nouzová; K. Fajfrlík; D. Frynta; J. Flegr

2007-01-01

457

Women infected with parasite Toxoplasma have more sons.  

PubMed

The boy-to-girl ratio at birth (secondary sex ratio) is around 0.51 in most populations. The sex ratio varies between societies and may be influenced by many factors, such as stress and immunosuppression, age, primiparity, the sex of the preceding siblings and the socioeconomic status of the parents. As parasite infection affects many immunological and physiological parameters of the host, we analyzed the effect of latent toxoplasmosis on sex ratios in humans. Clinical records of 1,803 infants born from 1996 to 2004 contained information regarding the mother's age, concentration of anti-Toxoplasma antibodies, previous deliveries and abortions and the sex of the newborn. The results of our retrospective cohort study suggest that the presence of one of the most common parasites (with a worldwide prevalence from 20 to 80%), Toxoplasma gondii, can influence the secondary sex ratio in humans. Depending on the antibody concentration, the probability of the birth of a boy can increase up to a value of 0.72, C.I.95 = (0.636, 0.805), which means that for every 260 boys born, 100 girls are born to women with the highest concentration of anti-Toxoplasma antibodies. The toxoplasmosis associated with immunosuppression or immunomodulation might be responsible for the enhanced survival of male embryos. In light of the high prevalence of latent toxoplasmosis in most countries, the impact of toxoplasmosis on the human population might be considerable. PMID:17028886

Kanková, S; Sulc, J; Nouzová, K; Fajfrlík, K; Frynta, D; Flegr, J

2006-09-30

458

Phenotype of FOXP2 Haploinsufficiency in a Mother and Son  

PubMed Central

Disruptions in FOXP2, a transcription factor, are the only known monogenic cause of speech and language impairment. We report clinical findings for two new individuals with a submicroscopic deletion of FOXP2: a boy with severe apraxia of speech and his currently moderately affected mother. A 1.57 Mb deletion on chromosome 7q31 was detected by array Comparative Genomic Hybridization (aCGH). In addition to FOXP2, the patients’ deletion involves two other genes, MDFIC and PPP1R3A, neither of which has been associated with speech or language disorders. Thus, findings for these two family members provide informative phenotypic information on FOXP2 haploinsufficiency. Evaluation by a clinical geneticist indicated no major congenital anomalies or dysmorphic features. Evaluations by a clinical psychologist and occupational therapist indicated cognitive-linguistic processing and sensorimotor control deficits, but did not support a diagnosis of autism spectrum disorder. Evaluation by clinical and research speech pathologists confirmed that both patients’ speech deficits met contemporary criteria for apraxia of speech. Notably, the patients were not able to laugh, cough, or sneeze spontaneously, replicating findings reported for two other FOXP2 cases and a potential diagnostic sign of nonsyndromic apraxia of speech. Speech severity findings for the boy were not consistent with the hypothesis that loss of maternal FOXP2 should be relatively benign. Better understanding of the behavioral phenotype of FOXP2 disruptions will aid identification of patients, toward an eventual understanding of the pathophysiology of syndromic and nonsyndromic apraxia of speech.

Rice, Gregory M.; Raca, Gordana; Jakielski, Kathy J.; Laffin, Jennifer J.; Iyama-Kurtycz, Christina M.; Hartley, Sigan L.; Sprague, Rae E.; Heintzelman, Anne T.; Shriberg, Lawrence D.

2011-01-01

459

Boys into Men: Raising Our African American Teenage Sons.  

ERIC Educational Resources Information Center

|This guide to rearing African American boys offers simple and effective strategies for problem-solving, improving communication, and instilling a positive racial identity. The book draws on strong African American family values and cultural and spiritual strengths. The chapters are: (1) "You Must Act As If It Is Impossible To Fail: Challenges in…

Boyd-Franklin, Nancy; Franklin, A. J.

460

Nuestros Sentimientos Son Iguales, La Diferencia Es En La Experiencia  

ERIC Educational Resources Information Center

The author concludes that counselors may be the prime cause of miscommunication and prejudicial evaluation in relations with persons from divergent racial and ethnic groups. Counselors must recognize and value the ethnicity of other persons if they are to foster an open, trusting, and productive counseling relationship with them. (Author/BY)

Palomares, Uvaldo H.

1971-01-01

461

Behavioral choice across leech species: chacun ? son go?t  

PubMed Central

At any one time, animals are simultaneously bombarded with many sensory stimuli, but they typically choose to respond to only a few of them. We used multidimensional analysis to determine the behavioral responses of six species of leeches to stimulation, as the responses are affected by species identity, diet, behavioral state and stimulus location. Our results show that each of the species tested while not feeding displayed remarkably similar behaviors in response to tactile stimulation of the surface of the body. When not feeding, stimulus location was the most reliable factor in determining behavioral response. While feeding, the three sanguivorous (bloodsucking) species tested ignored stimulation, whereas the three carnivorous leeches abandoned feeding in favor of locomotory responses, regardless of phylogenetic relationships. In the sanguivorous leeches, feeding abolished all mechanically elicited responses and mechanical stimulation in turn had no effect on feeding. We also show that the behavioral hierarchy of leeches was fixed and unchanging even in species that can consume both a carnivorous and a sanguivorous diet.

Gaudry, Q.; Ruiz, N.; Huang, T.; Kristan, W. B.; Kristan, W. B.

2010-01-01

462

[Inspired by Apollo and Asclepio's sons in Homer and Virgil].  

PubMed

Important passages of the Homeric and Virgilian epic are regarding the art of divination and the medical science, and underline contextually the figures of the fortune teller and that of the physician. Two roles are associated to one matrix: heroic-aristocratic or royal-sacerdotal. In Homer's epic it is possible to single out surgical and phytotherapeutic knowledge together with remedies for diseases aroused by a solar god, like Apollo is, gods' physician. Pitiful divinities comfort those who have been struck by demoniac and mysterious forms. On the contrary, in Virgil's epic a symbiosis is carried out between the physician's figure and the priest's one, with the very vague outlines of the two arts and however, overloaded by factors which are typically Virgilian. Unusual form of incubation of the Greek rituals has been transplanted in the Latin matrix; and moreover there is a constant recall of words used in their most antique meaning. PMID:11640092

Merlino, R L

1989-01-01

463

Father and Son: How unequal opportunities are in Korea?  

Microsoft Academic Search

The present paper proposes a method to decompose the observed socio-economic inequality into the part due to unequal opportunities and the part due to differential exercise of individual effort. The proposed method is applied to the data set constructed from the Korea Labor and Income Panel Studies for the period of 2003-2006, consisting of individuals who are male heads of

Jayee Ko; Woojin Lee

2010-01-01

464

'Doctor, My Son Walks Funny': A Guide for the Perplexed  

PubMed Central

The primary care physician plays a critical role in reassuring parents about their child's orthopedic development in the lower extremity. Paramount to this reassurance is the ability to understand the normal and natural history of lower extremity development. Family physicians should be able to diagnose and treat metatarsus varus, internal and external tibial torsion, femoral anteversion and femoral retroversion, bow legs, knock knees, and flat feet. The chief complaint often turns out to be only a variation of normal physiological growth and development.

Beauchamp, Richard D.

1990-01-01

465

Fathers and sons: the Y chromosome and human evolution  

Microsoft Academic Search

It should be possible to use Y chromosome DNA polymorphisms to trace paternal lineages for evolutionary and other studies, but progress in these areas has been slow because it has been difficult to find suitable markers. However, it is now possible to use selected, slowly evolving polymorphisms to draw a rudimentary Y chromosome tree, while more rapidly evolving polymorphisms allow

Mark A. Jobling; Chris Tyler-Smith

1995-01-01

466

Family Matters: Father and Son Follow Same Career Path; Succeed  

ERIC Educational Resources Information Center

|Together, Samuel L. Myers Sr. and Jr. prove that the apple tree, when properly nurtured in the rich intellectual orchards of academia, will bear prime fruit that lands close to its roots. The Doctors Myers both earned bachelor's degrees from Morgan State University and then ventured to Boston for their Ph.D.s in economics. Though their…

Cooper, Kenneth J.

2012-01-01

467

Canada and the IMF: Trailblazer or Prodigal Son?  

Microsoft Academic Search

Canada played an important role in the establishment of the IMF, yet in 1950 it was also the first major member to abandon\\u000a the Bretton Woods par-value system in favour of a flexible exchange rate. Canada’s trail-blazing experience demonstrated that\\u000a a flexible exchange rate can operate in stable and effective manner under a high degree of capital mobility. Equally important,

Michael D. Bordo; Tamara Gomes; Lawrence L. Schembri

2010-01-01

468

NGC 5694: another foster son of the Galactic halo  

NASA Astrophysics Data System (ADS)

We present the results of the analysis of high-resolution spectra obtained with UVES-FLAMES at the Very Large Telescope for six red giant branch stars in the outer-halo metal-poor ([Fe/H] I = -1.98 and [Fe/H] II = -1.83) Galactic globular cluster NGC 5694, which has been suggested as a possible incomer by Lee et al. based on the anomalous chemical composition of a single cluster giant. We obtain accurate abundances for a large number of elements and we find that (a)the six target stars have the same chemical composition within the uncertainties, except for Na and Al; (b) the average cluster abundance of ? elements (with the only exception of Si) is nearly solar, at odds with typical halo stars and globular clusters of similar metallicity; (c) Y, Ba, La and Eu abundances are also significantly lower than in Galactic field stars and star clusters of similar metallicity. Hence, we confirm the Lee et al. classification of NGC 5694 as a cluster of extragalactic origin. We provide the first insight on the Na-O and Mg-Al anticorrelations in this cluster: all the considered stars have very similar abundance ratios for these elements, except one that has significantly lower [Na/Fe] and [Al/Fe] ratios, suggesting that some degree of early self-enrichment has occurred also in this cluster.

Mucciarelli, A.; Bellazzini, M.; Catelan, M.; Dalessandro, E.; Amigo, P.; Correnti, M.; Cortés, C.; D'Orazi, V.

2013-11-01

469

Prodigal Son or Trojan Horse: what's in it for France?  

Microsoft Academic Search

Debate in France about the return to NATO's integrated command structure revolved largely around whether or not Sarkozy had broken with the sacrosanct Gaullist principles of ‘non-alignment’. In reality, the decision was taken for quite different reasons. Since the end of the cold war, France has found itself heavily involved with NATO in a range of overseas missions. Militarily, to

Jolyon Howorth

2010-01-01

470

Tom, Tom, the Piper's Son: Reading While Having Fun.  

ERIC Educational Resources Information Center

|This article describes how a first-grade teacher used poetry to provide students of diverse ability levels with reading and language activities that stimulated their interest and improved basic skills. Activities with poetry included reading the poems aloud individually and as a group, discussing and analyzing the poems' words and meanings, and…

Holmes, Kerry

2003-01-01

471

BOOK REVIEW: Jean-Charles Houzeau et son temps  

NASA Astrophysics Data System (ADS)

This is a wonderful book. It describes the life and work of Belgian astronomer Jean-Charles Houzeau (1820-1888) and, as the last three words of the title indicate, it has a broader focus including the social, industrial and scientific context of the second part of the 19th century. This is set in a very broad international social context including social revolutions in Belgium and France, and the abolition of slavery in the United States. The biography clearly shows that this hard-working man was driven by science and justice, by individualism and generosity, by humor and sentiment. The book is divided in four parts, each part is placed in its own historical context. The first part "The apprentice, the master and his disciples" describes Houzeau's childhood and young years, his early scientific career at the Observatory in Brussels, and his relationship with Adolphe Quetelet. The evolution of this relationship is very well documented: the turbulent revolutionary Houzeau versus cool, moderated and diplomatic royalist Quetelet, the observer versus the mathematician theorist. But both were very dedicated teachers: Quetelet established public courses and after the Revolution of 1830 he contributed to the foundation of the University of Brussels; Houzeau was the peripatetic teacher wherever place he was, also after his return to Belgium. The second part is "The politician" and deals with Houzeau's political ideas and revolutionary attitudes and their consequences. His revolutionary ideas, though, were not confined to politics only: he also severely criticised the paucity of high-precision observations collected at the Royal Observatory in his days. Because he participated at revolutionary meetings, Houzeau was fired from his position at the Observatory by the Minister of Interior Affairs Charles Rogier. Thus started his peripathetic life, covering observational work in astronomy, geography, geodesy and natural sciences in many places in Belgium and abroad. The third part, "The separation", is a very interesting account of Houzeau's emigration to North America, in vain search for his revolutionary dream. Of course he also ran into trouble in the US due to publications such as "The white terror in Texas" and because of his loyalty with the slaves, his advocacy for black civil rights and his refusal to join the confederate army, so he had to flee Texas too. The book gives many details on the civil war era. His absence from Belgium led to a very significant scientific work, in the first place his most homogeneous and extensive star atlas (6000 stars to declination -65) which was made in very good atmospheric conditions by one and only one observer, totally independent from previously published catalogues. The last part "The builder" tells the story of the construction of the new Royal Observatory in the suburb of Uccle, a new and better site than the one established in the city center by the Dutch regime in 1826. When the succession of Adolphe Quetelet was discussed, Houzeau was about the only candidate with a vast publication record and a broad observational expertise. Surprisingly, he was appointed as the second director of the Observatory and remained in function till 1883. One chapter in the fourth part of the book deals with Houzeau's participation at a Venus transit expedition of 1882. Jean-Charles Houzeau made very significant contributions to astronomy and his major works include "Vade-mecum de l'Astronomie", the "Uranometrie Generale" and his monumental "Bibliographie Generale de l'Astronomie", an early precursor of our modern web-based ADS (NASA Astrophysics Data System). This is a book which every Belgian astronomer should read because it is an eye opener on the history of the establishment of the kingdom, and because it explains the roots and difficult early development of astronomy in this country. This history is internationally linked and refers to many contemporary scientists such as Argelander, Heis, Herschel, von Humboldt etc. The bo

Sterken, C.; Verhas, P.

2002-12-01

472

Free Riders and Pious Sons - Why Science Research Remains Obligatory  

PubMed Central

John Harris has previously proposed that there is a moral duty to participate in scientific research. This concept has recently been challenged by Iain Brassington, who asserts that the principles cited by Harris in support of the duty to research fail to establish its existence. In this paper we address these criticisms and provide new arguments for the existence of a moral obligation to research participation. This obligation, we argue, arises from two separate but related principles. The principle of fairness obliges us to support the social institutions which sustain us, of which research is one; while the principle of beneficence, or the duty of rescue, imposes upon us a duty to prevent harm to others, including by supporting potentially beneficial, even life-saving research. We argue that both these lines of argument support the duty to research, and explore further aspects of this duty, such as to whom it is owed and how it might be discharged.

Chan, Sarah; Harris, John

2009-01-01

473

BOOK REVIEW: Jean-Charles Houzeau et son temps  

Microsoft Academic Search

This is a wonderful book. It describes the life and work of Belgian astronomer Jean-Charles Houzeau (1820-1888) and, as the last three words of the title indicate, it has a broader focus including the social, industrial and scientific context of the second part of the 19th century. This is set in a very broad international social context including social revolutions

C. Sterken; P. Verhas

2002-01-01

474

The vitamin riboflavin and its derivative lumichrome activate the LasR bacterial quorum-sensing receptor.  

PubMed

Many bacteria use quorum sensing (QS) as an intercellular signaling mechanism to regulate gene expression in local populations. Plant and algal hosts, in turn, secrete compounds that mimic bacterial QS signals, allowing these hosts to manipulate QS-regulated gene expression in bacteria. Lumichrome, a derivative of the vitamin riboflavin, was purified and chemically identified from culture filtrates of the alga Chlamydomonas as a QS signal-mimic compound capable of stimulating the Pseudomonas aeruginosa LasR QS receptor. LasR normally recognizes the N-acyl homoserine lactone (AHL) signal, N-3-oxo-dodecanoyl homoserine lactone. Authentic lumichrome and riboflavin stimulated the LasR receptor in bioassays and lumichrome activated LasR in gel shift experiments. Amino acid substitutions in LasR residues required for AHL binding altered responses to both AHLs and lumichrome or riboflavin. These results and docking studies indicate that the AHL binding pocket of LasR recognizes both AHLs and the structurally dissimilar lumichrome or riboflavin. Bacteria, plants, and algae commonly secrete riboflavin or lumichrome, raising the possibility that these compounds could serve as either QS signals or as interkingdom signal mimics capable of manipulating QS in bacteria with a LasR-like receptor. PMID:18700823

Rajamani, Sathish; Bauer, Wolfgang D; Robinson, Jayne B; Farrow, John M; Pesci, Everett C; Teplitski, Max; Gao, Mengsheng; Sayre, Richard T; Phillips, Donald A

2008-09-01

475

Growth phenotypes of Pseudomonas aeruginosa lasR mutants adapted to the airways of cystic fibrosis patients  

PubMed Central

Summary The opportunistic pathogen Pseudomonas aeruginosa undergoes genetic change during chronic airway infection of cystic fibrosis (CF) patients. One common change is a mutation inactivating lasR, which encodes a transcriptional regulator that responds to a homoserine lactone signal to activate expression of acute virulence factors. Colonies of lasR mutants visibly accumulated the iridescent intercellular signal 4-hydroxy-2-heptylquinoline. Using this colony phenotype, we identified P. aeruginosa lasR mutants that emerged in the airway of a CF patient early during chronic infection, and during growth in the laboratory on a rich medium. The lasR loss-of-function mutations in these strains conferred a growth advantage with particular carbon and nitrogen sources, including amino acids, in part due to increased expression of the catabolic pathway regulator CbrB. This growth phenotype could contribute to selection of lasR mutants both on rich medium and within the CF airway, supporting a key role for bacterial metabolic adaptation during chronic infection. Inactivation of lasR also resulted in increased ?-lactamase activity that increased tolerance to ceftazidime, a widely used ?-lactam antibiotic. Loss of LasR function may represent a marker of an early stage in chronic infection of the CF airway with clinical implications for antibiotic resistance and disease progression.

D'Argenio, David A.; Wu, Manhong; Hoffman, Lucas R.; Kulasekara, Hemantha D.; Deziel, Eric; Smith, Eric E.; Nguyen, Hai; Ernst, Robert K.; Larson Freeman, Theodore J.; Spencer, David H.; Brittnacher, Mitchell; Hayden, Hillary S.; Selgrade, Sara; Klausen, Mikkel; Goodlett, David R.; Burns, Jane L.; Ramsey, Bonnie W.; Miller, Samuel I.

2009-01-01

476

Distribution and origin of dissolved gases of groundwaters at Las Cañadas aquifer, Tenerife, Canary Islands  

NASA Astrophysics Data System (ADS)

Volcanic aquifers commonly trap an important fraction of the main soluble components of fluids released from volcanic-hydrothermal system (CO2, SO2, H2S, HCl, HF, etc.). In particular, the interactions between volcanic gases and volcanic aquifers have been studied through hydrogeochemical parameters, as major and minor ions contents and dissolved gases in groundwaters. In the context of hydrogeochemical studies applied to active volcanic areas, studies of dissolved gases species in groundwater could be a useful tool to better understand the subsurface processes as gas-water-rock interaction or to strengthen the geochemical seismic-volcanic surveillance programs. In this work, we report the results of the geochemical characterization of dissolved gases (N2, O2, Ar, CO2, CH4, CO, H2, He, 222Rn, ?13CTDIC) in 96 groundwater samples from Las Cañadas aquifer (around Teide volcano) between May and October, 2006. The main aims of this work are: (1) to determine the background level of magmatic gas input in the aquifer during quiescent periods, (2) to better define the origin of dissolved gases in Las Cañadas aquifer, specially CO2, (3) to evaluate the gas-water-rock interaction processes occurring at depth, and (4) to delineate high permeable pathway of upward migration of volcanic-hydrothermal gases. In general, the dissolved gas phase in groundwaters of Las Cañadas aquifer is relatively enriched in endogenous gases (CO2, He and H2) while it is relatively depleted in atmospheric gases (N2, O2 and Ar). N2-O2-CO2 triangular diagram shows that dissolved gases in most of analyzed groundwater are variable mixtures of CO2-rich fluids from the volcanic-hydrothermal system (as represent the Teide fumaroles) with dissolved air. The relatively high N2/O2 ratio in some groundwater compared to the air saturated water suggests an O2 consumption during gas-water-rock interactions occurring at depth. Spatial distribution maps show anomalous concentration of 222Rn CH4, H2 and CO2 dissolved in groundwater at the westernmost area of Las Cañadas aquifer, which is in good spatial correlation with geophysical and geochemical anomalies related to 2004-2005 seismic-volcanic unrest at Tenerife Island. Determinations of ?13C values in the total dissolved inorganic carbon (TDIC) in groundwater in Las Cañadas aquifer ranging from -5 to +5 (‰ vs PDB). This result was explained by isotopic fractionation of either volcanic-hydrothermal CO2 partially dissolved in groundwater or due to precipitation of CaCO3 and CO2 degassing related to silicate hydrolysis dissolving Ca2+.

Marrero, R.; Melian, G.; Padron, E.; Sortino, F.; Hernandez Perez, P. A.; Lopez, D. L.; Perez, N.

2009-12-01

477

Fluid-rock interaction at Las Cañadas aquifer, Tenerife, Canary Islands  

NASA Astrophysics Data System (ADS)

Las Cañadas caldera, located at the central part of Tenerife, Canary Islands, is a large volcanic depression (16 x 9 km). The caldera is opened to the sea at the north side and filled by continuous layers of lava flows and fall deposits. These volcanic deposits form a good hydrogeological trap which is the largest ground water reserve of the island. In comparison, the basement of the caldera has low permeability. Numerous galleries (horizontal drains) intercept the Las Cañadas aquifer. During the last century, this aquifer has been overexploited depleting the water table as well as the water quality. The Teide-Pico Viejo volcanic complex is located at the margin of the caldera. The ascent of deep magmatic gases (e.g. CO2) confers aggressiveness to the waters causing rock dissolution and alteration. The aim of this work is to study water-rock interactions in Las Cañadas aquifer. Chemical diagrams showing the relative composition of Mg, Ca, Na and K as described by Giggenbach (1988) indicate that the waters discharged by the galleries correspond to the process of rock dissolution and evolution towards full rock-fluid equilibrium. The lower contents in Ca and Mg are found in the galleries which reach more deeply the north flank of the Teide Volcano, suggesting mineral precipitation and heating in this zone. Geochemical modeling of fluid-rock interactions using Chiller (Reed and Spycher, 1984) show that the gases discharged at Teide summit cannot generate the water compositions observed at Las Cañadas. These gases represent the separated phase of a condensation process within the volcanic edifice. Modeling of the gas-enriched Las Cañadas waters from the recharge zone with phonolitic rocks from the caldera show that the galleries waters correspond to the dissolution of 1 to 7 g of rock/liter of water and a relatively shallow circulation. The simulations suggest that waters have not encountered the ˜ 250° C temperature region suggested by the gas geothermometers. This behavior suggests that the heat source in this system is deep as suggested by geophysical studies.

Marrero, R.; López, D.; Pérez, N.

2003-12-01

478

An Aerial Radiological Survey of Selected Areas of the City of North Las Vegas  

SciTech Connect

As part of the proficiency training for the Radiological Mapping mission of the Aerial Measuring System (AMS), a survey team from the Remote Sensing Laboratory-Nellis (RSL-Nellis) conducted an aerial radiological survey of selected areas of the city of North Las Vegas for the purpose of mapping natural radiation background and locating any man-made radioactive sources. Survey areas were selected in collaboration with the City Manager's office and included four separate areas: (1) Las Vegas Motor Speedway (10.6 square miles); (2) North Las Vegas Downtown Area (9.2 square miles); (3) I-15 Industrial Corridor (7.4 square miles); and (4) Future site of University of Nevada Las Vegas campus (17.4 square miles). The survey was conducted in three phases: Phase 1 on December 11-12, 2007 (Areas 1 and 2), Phase 2 on February 28, 2008 (Area 3), and Phase 3 on March 19, 2008 (Area 4). The total completed survey covered a total of 44.6 square miles. The flight lines (without the turns) over the surveyed areas are presented in Figures 1, 2, 3, and 4. A total of eight 2.5-hour-long flights were performed at an altitude of 150 ft above ground level (AGL) with 300 feet of flight-line spacing. Water line and test line flights were conducted over the Lake Mead and Government Wash areas to ensure quality control of the data. The data were collected by the AMS data acquisition system (REDAR V) using an array of twelve 2-inch x 4-inch x 16-inch sodium iodide (NaI) detectors flown on-board a twin-engine Bell 412 helicopter. Data, in the form of gamma energy spectra, were collected continually (every second) over the course of the survey and were geo-referenced using a differential Global Positioning System. Collection of spectral data allows the system to distinguish between ordinary fluctuations in natural background radiation levels and the signature produced by man-made radioisotopes. Spectral data can also be used to identify specific radioactive isotopes. As a courtesy service, with the approval of the U.S. Department of Energy, National Nuclear Security Administration, Nevada Site Office, RSL-Nellis is providing this summary to the office of the Mayor of the City of North Las Vegas along with the gross-count-based exposure rate and man-made count contour maps and GIS shape files in electronic format on a compact disk.

Piotr Wasiolek

2008-06-01

479

Las Positas College Increase Female Students in Welding and Automotive Technology from 5% to 14%; Retention Increases to 94%  

NSDL National Science Digital Library

This brief case study highlights Las Positas College in Livermore, California, which took part in the CalWomen Tech project. The project involved each college participating in four core recruitment strategies. Outreach took form in the place of posters, flyers, brochures and a website. Las Positas used the slogan "Women in Technology RULE." As a result of these efforts, the college was able to increase recruitment and retention of female students. The lessons learned from Las Positas College would be useful for other community colleges and technical programs looking to improve in this area.

2012-01-30

480

New sample treatment for determination of linear alkylbenzene sulfonate (LAS) in agricultural soils by liquid chromatography with fluorescence detection  

Microsoft Academic Search

A new sample-treatment procedure has been developed for determination of total linear alkylbenzene sulfonate (LAS), i.e. homologues\\u000a and isomers, in agricultural soil. The procedure involves two steps, ultrasound-assisted extraction of LAS from the samples\\u000a with methanol then clean-up of the methanolic extracts and preconcentration of the LAS by solid-phase extraction on two adsorbent\\u000a cartridges (SAX and C18). The ultrasound-assisted procedure

M. Nimer; O. Ballesteros; A. Navalón; G. Crovetto; C. Verge; I. López; J. L. Berna; J. L. Vílchez

2007-01-01

481

LAS FLECHAS EN EL ARTE LEVANTINO: APORTACIONES DESDE EL ANÁLISIS DE LOS PROYECTILES DEL REGISTRO ARQUEOLÓGICO DEL RIU DE LES COVES (ALT MAESTRAT, CASTELLÓ )  

Microsoft Academic Search

RESUMEN: En el presente trabajo se aborda el estudio de las flechas en el Arte Levantino a partir de su contrastación con los proyectiles en piedra tallada recuperados en los yacimientos meso- líticos y neolíticos más próximos a los abrigos pintados del núcleo de la Valltorta-Gasulla. El aná- lisis de las diferentes modalidades de representación y las distintas propuestas de

Javier FERNÁNDEZ LÓPEZ DE PABLO

482

Un acercamiento a la aplicación de la teoría de las inteligencias múltiples (IM) en la clase de inglés como idioma extranjero en el contexto universitario cubano  

Microsoft Academic Search

El desarrollo de habilidades relacionadas con el discurso oral es una de las prioridades de los estudiantes de lenguas extranjeras. La mayoría de las veces, la destreza en la comunicación verbal es lo que mide el conocimiento del alumno de la lengua extranjera (LE) o la segunda lengua (L2) que se está aprendiendo. Hay muchas razones por lo que las

Daniel Cima de Mesa; Adrian Abreus González

2011-01-01

483

De las capacidades dinámicas como enfoque de la estrategia a la integración de competencias para la construcción de un entorno colaborativo Univ - Emp  

Microsoft Academic Search

Este artículo intenta mostrar la importancia de avanzar de un enfoque de capacidades dinámicas a uno de competencias, para construir una estrategia de entornos colaborativos que permita aprovechar los esfuerzos y las oportunidades de la relación universidad- empresa. Para tal fin, el documento está organizado en tres partes: la primera, es una revisión amplia de las perspectivas desde las cuales

Patricia Roncancio R

2011-01-01

484

La promoción turística oficial en Internet y su relación con el desarrollo turístico de los destinos: Una aplicación a las Ciudades medias de Andalucía  

Microsoft Academic Search

Resumen: Este trabajo analiza las webs de promoción oficial de destinos turísticos de interior de Andalucía. En el mismo se confirma la existencia de una relación entre el desarrollo turístico y el nivel de desarrollo de las webs. El estudio aporta una metodología basada en la contabilización de elemento (“counting methods”), obteniendo como resultado un estudio descriptivo de las webs

Pablo Díaz Luque; Blanca López Catalán

2012-01-01

485

76 FR 3678 - Board Meeting: February 16, 2011-Las Vegas, NV, the U.S. Nuclear Waste Technical Review Board...  

Federal Register 2010, 2011, 2012, 2013

...NUCLEAR WASTE TECHNICAL REVIEW BOARD Board Meeting...Las Vegas, NV, the U.S. Nuclear Waste Technical Review Board Will Meet To Discuss...Nuclear Fuel and High-Level Radioactive Waste Pursuant to its authority under...

2011-01-20

486

75 FR 60496 - Kern Valley Railroad Company-Termination of Trackage Rights-in Las Animas County, CO  

Federal Register 2010, 2011, 2012, 2013

...TRANSPORTATION Surface Transportation Board [Docket No. AB 1069X] Kern Valley Railroad Company--Termination of Trackage Rights--in Las Animas County, CO On September 10, 2010, Kern Valley Railroad Company (KVR) filed with the Board a...

2010-09-30

487

Invasive Species Databases: Proceedings of a Workshop. Held in Las Vegas, Nevada on November 12-13, 1998.  

National Technical Information Service (NTIS)

The workshop, which was held in Las Vegas, Nevada, on November 12-13, 1998, in association with the American Phytopathological Society and Entomological Society of America, served as the basis for these proceedings. The introductory section for these proc...

R. L. Ridgway W. P. Gregg R. E. Stinner A. G. Brown

1999-01-01

488

An Aerial Radiological Survey of the City of North Las Vegas (Downtown) and the Motor Speedway  

SciTech Connect

As part of the proficiency training for the Radiological Mapping mission of the Aerial Measuring System (AMS), a survey team from the Remote Sensing Laboratory-Nellis (RSL-Nellis) conducted an aerial radiological survey on December 11-12, 2007, with the purpose of mapping natural radiation background and locating any man-made radioactive sources. The survey covered 19.4 square miles (9.2 square miles over the downtown area of the City of North Las Vegas and 10.2 square miles over the Las Vegas Motor Speedway [LVMS]). The flight lines over the surveyed areas are presented in Figures 1 and 2. A total of four 2.5-hour-long flights were performed at an altitude of 150 ft above ground level (AGL) with 300 ft of flight line spacing. Water line and test line flights were conducted over the Lake Mead and Government Wash areas to ensure quality control of the data. The data were collected by the AMS data acquisition system-REDAR V using an array of twelve 2-inch x 4-inch x 16-inch sodium iodide (NaI) detectors flown on-board a twin-engine Bell 412 helicopter. Data in the form of gamma energy spectra were collected continually (every second) over the course of the survey and were geo-referenced using a differential Global Positioning System. Collection of spectral data allows the system to distinguish between ordinary fluctuations in natural background radiation levels and the signature produced by man-made radioisotopes sources. Spectral data can also be used to identify specific radioactive isotopes. As a courtesy service with the approval of the U.S. Department of Energy, National Nuclear Security Administration, Nevada Site Office, RSL-Nellis is providing this summary to the office of the Mayor of City of North Las Vegas and LVMS security along with the gross counts-based exposure rate and man-made counts maps.

Piotr Wasiolek

2007-12-01

489

The Impacts of Reactive Terpene Emissions From Plants on the Air Quality of Las Vegas, Nevada  

NASA Astrophysics Data System (ADS)

Biogenic volatile organic compounds (BVOCs) emitted from vegetation can significantly impact tropospheric air quality by interacting with anthropogenic pollutants, such as oxides of nitrogen (NOx), to produce ozone and particulate matter (PM) in the form of secondary organic aerosols (SOA). Two classes of BVOCs, isoprene and monoterpenes, have been well characterized and, until recently, were thought to be the most prevalent BVOCs emitted. However, recent studies suggest that a class of very reactive BVOCs (VR-BVOCs) is emitted at rates which exceed those of monoterpenes (Goldstein et al. 2004). The chemistry of VR-BVOCs is complicated as these high molecular weight compounds have multiple reaction centers, complex structures, and are difficult to measure due to very low volatilities and rapid reaction rates. As a result of this difficulty, very little is known about VR-BVOC emissions and their concomitant effects on air quality. The present study examines emissions of VR-BVOCs, principally sesquiterpenes, from the dominant native and non-native vegetation in the Las Vegas metropolitan area. Measurements were obtained using a novel collection system involving a gas chromatograph and a custom-designed glass leaf chamber. In order to minimize losses due to the high reactivity and low vapor pressures of these compounds, the instrument system was field-portable, had very short transfer lines, and was made of inert materials (glass, Teflon). These data have been entered into a GIS framework to develop an emissions inventory for the Las Vegas metropolitan area. A series of atmospheric chemistry box model simulations utilizing the RACM2 chemical mechanism were run to assess impacts of sesquiterpenes on air quality for urban, suburban, and rural areas. Studying the magnitude of emissions of this class of BVOCs provides a more thorough understanding of the factors contributing to ozone concentrations and SOA formation. This information is of increasing importance as the Las Vegas area continues to expand at a rapid pace and local planners search for ways to mitigate air quality problems.

Papiez, M. R.; Potosnak, M. J.; Goliff, W. S.

2006-12-01

490

Interferograms showing land subsidence and uplift in Las Vegas Valley, Nevada, 1992-99  

USGS Publications Warehouse

The U.S. Geological Survey, in cooperation with the Nevada Department of Conservation and Natural Resources-Division of Water Resources and the Las Vegas Valley Water District, compiled 44 individual interferograms and 1 stacked interferogram comprising 29 satellite synthetic aperture radar acquisitions of Las Vegas Valley, Nevada, from 1992 to 1999. The interferograms, which depict short-term, seasonal, and long-term trends in land subsidence and uplift, are viewable with an interactive map. The interferograms show that land subsidence and uplift generally occur in localized areas, are responsive to ground-water pumpage and artificial recharge, and, in part, are fault controlled. Information from these interferograms can be used by water and land managers to mitigate land subsidence and associated damage. Land subsidence attributed to ground-water pumpage has been documented in Las Vegas Valley since the 1940s. Damage to roads, buildings, and other engineered structures has been associated with this land subsidence. Land uplift attributed to artificial recharge and reduced pumping has been documented since the 1990s. Measuring these land-surface changes with traditional benchmark and Global Positioning System surveys can be costly and time consuming, and results typically are spatially and temporally sparse. Interferograms are relatively inexpensive and provide temporal and spatial resolutions previously not achievable. The interferograms are viewable with an interactive map. Landsat images from 1993 and 2000 are viewable for frames of reference to locate areas of interest and help determine land use. A stacked interferogram for 1992-99 is viewable to visualize the cumulative vertical displacement for the period represented by the individual interferograms. The interactive map enables users to identify and estimate the magnitude of vertical displacement, visually analyze deformation trends, and view interferograms and Landsat images side by side. The interferograms and Landsat images are available for download, in formats for use with Geographic Information System software.

Pavelko, Michael T.; Hoffmann, Jorn; Damar, Nancy A.

2006-01-01

491

Influence of linear alkylbenzene sulfonate (LAS) on the structure of Alphaproteobacteria , Actinobacteria , and Acidobacteria communities in a soil microcosm  

Microsoft Academic Search

Background, aim, and scope  Linear alkylbenzene sulfonate (LAS) is the most used anionic surfactant in a worldwide scale and is considered a high-priority\\u000a pollutant. LAS is regarded as a readily biodegradable product under aerobic conditions in aqueous media and is mostly removed\\u000a in wastewater treatment plants, but an important fraction (20–25%) is immobilized in sewage sludge and persists under anoxic\\u000a conditions.

Jesús González-López; Clementina Pozo; Belén Rodelas

2010-01-01

492

Linear alkylbenzene sulfonate (LAS) in water of Lake Dianchi—spatial and seasonal variation, and kinetics of biodegradation  

Microsoft Academic Search

For the purpose of elucidating the environmental characteristics of anion surfactants [linear alkylbenzene sulfonates (LAS)]\\u000a in the water of Lake Dianchi, a sampling investigation in the field from October 2006 to July 2007 and a batch of biodegradation\\u000a experiments in the laboratory were carried out. The results showed that concentrations of LAS ranged from 18.6 to 260.1 ?g L???1, and the average

Zhi Wang; Bangding Xiao; Xingqiang Wu; Xinhai Tu; Yingcai Wang; Xiaolei Sun; Lirong Song

2010-01-01

493

Seismic Data for Evaluation of Ground Motion Hazards in Las Vegas in Support of Test Site Readiness Ground Motion  

SciTech Connect

In this report we describe the data sets used to evaluate ground motion hazards in Las Vegas from nuclear tests at the Nevada Test Site. This analysis is presented in Rodgers et al. (2005, 2006) and includes 13 nuclear explosions recorded at the John Blume and Associates network, the Little Skull Mountain earthquake and a temporary deployment of broadband station in Las Vegas. The data are available in SAC format on CD-ROM as an appendix to this report.

Rodgers, A

2008-01-16

494

Management and operating contractors' support services at McCarran International Airport, Las Vegas, Nevada  

SciTech Connect

This audit evaluated the Department of Energy's (Department) oversight of Lawrence Livermore, Los Alamos, and Sandia National Laboratories' need for support services at McCarran International Airport (McCarran), Las Vegas, Nevada. An examination followed generally accepted Government auditing standards for performance audits, included tests of internal controls, and compliance with laws and regulations necessary to satisfy the audits objective. Since this review was limited, it would not necessarily disclose all material internal control weaknesses. However, the finding relating to duplicate services and a lack of annual real property surveys showed internal control weaknesses. These should be considered when preparing the year-end assurance memorandum on internal control deficiencies.

Not Available

1989-08-09

495

First results from optical turbulence measurements at Cerro Las Campanas in 2010  

NASA Astrophysics Data System (ADS)

We report preliminary results from optical turbulence measurements carried out in 2010 at Cerro Las Campanas, the future site for the Giant Magellan Telescope (GMT). The instruments involved are MooSci, a lunar scintillometer for the near-ground optical turbulence profile, Differential Image Motion Monitor (DIMM) for the whole atmosphere total seeing, and MASS Multiple Aperture Scintillation Sensor (MASS) for high-altitude optical turbulence estimation. The main purpose of these measurements is to anticipate the optical turbulence strength above the future GMT enclosure, and to provide a means to model the future adaptive optics performance. We also discuss the significance of such a combination of instruments and some hypothetical limitations.

Berdja, A.; Prieto, G.; Thomas-Osip, J. E.

2011-09-01

496

Anaerobic degradation of linear alkylbenzene sulfonate (LAS) in fluidized bed reactor by microbial consortia in different support materials.  

PubMed

Four anaerobic fluidized bed reactors filled with activated carbon (R1), expanded clay (R2), glass beads (R3) and sand (R4) were tested for anaerobic degradation of LAS. All reactors were inoculated with sludge from a UASB reactor treating swine wastewater and were fed with a synthetic substrate supplemented with approximately 20 mg l(-1) of LAS, on average. To 560 mg l(-1) COD influent, the maximum COD and LAS removal efficiencies were mean values of 97+/-2% and 99+/-2%, respectively, to all reactors demonstrating the potential applicability of this reactor configuration for treating LAS. The reactors were kept at 30 degrees C and operated with a hydraulic retention time (HRT) of 18h. The use of glass beads and sand appear attractive because they favor the development of biofilms capable of supporting LAS degradation. Subsequent 16S rRNA gene sequencing and phylogenetic analysis of samples from reactors R3 and R4 revealed that these reactors gave rise to broad microbial diversity, with microorganisms belonging to the phyla Bacteroidetes, Firmicutes, Actinobacteria and Proteobacteria, indicating the role of microbial consortia in degrading the surfactant LAS. PMID:20189800

de Oliveira, Lorena Lima; Costa, Rachel Biancalana; Okada, Dagoberto Yukio; Vich, Daniele Vital; Duarte, Iolanda Cristina Silveira; Silva, Edson Luiz; Varesche, Maria Bernadete Amâncio

2010-03-01

497

New sample treatment for determination of linear alkylbenzene sulfonate (LAS) in agricultural soils by liquid chromatography with fluorescence detection.  

PubMed

A new sample-treatment procedure has been developed for determination of total linear alkylbenzene sulfonate (LAS), i.e. homologues and isomers, in agricultural soil. The procedure involves two steps, ultrasound-assisted extraction of LAS from the samples with methanol then clean-up of the methanolic extracts and preconcentration of the LAS by solid-phase extraction on two adsorbent cartridges (SAX and C18). The ultrasound-assisted procedure reduces extraction time (10 min in contrast with 6-12 h for conventional Soxhlet extraction) and requires only small volumes of organic solvent. The effect of different variables interacting in the ultrasound-assisted extraction process was studied. Finally, separation and quantification of the homologues and isomers of LAS was performed by liquid chromatography with fluorescence detection (LC-FD). 2-Octylbenzenesulfonic acid sodium salt (Na-2ØC8-LAS) was used as internal standard. The proposed method was satisfactorily used for determination of LAS in agricultural soil samples from the fertile plain of Granada (Spain). PMID:17225109

Nimer, M; Ballesteros, O; Navalón, A; Crovetto, G; Verge, C; López, I; Berna, J L; Vílchez, J L

2007-01-16

498

On an LAS-integrated soft PLC system based on WorldFIP fieldbus.  

PubMed

Communication efficiency is lowered and real-time performance is not good enough in discrete control based on traditional WorldFIP field intelligent nodes in case that the scale of control in field is large. A soft PLC system based on WorldFIP fieldbus was designed and implemented. Link Activity Scheduler (LAS) was integrated into the system and field intelligent I/O modules acted as networked basic nodes. Discrete control logic was implemented with the LAS-integrated soft PLC system. The proposed system was composed of configuration and supervisory sub-systems and running sub-systems. The configuration and supervisory sub-system was implemented with a personal computer or an industrial personal computer; running subsystems were designed and implemented based on embedded hardware and software systems. Communication and schedule in the running subsystem was implemented with an embedded sub-module; discrete control and system self-diagnosis were implemented with another embedded sub-module. Structure of the proposed system was presented. Methodology for the design of the sub-systems was expounded. Experiments were carried out to evaluate the performance of the proposed system both in discrete and process control by investigating the effect of network data transmission delay induced by the soft PLC in WorldFIP network and CPU workload on resulting control performances. The experimental observations indicated that the proposed system is practically applicable. PMID:21889140

Liang, Geng; Li, Zhijun; Li, Wen; Bai, Yan

2011-09-01

499

Excess air during aquifer storage and recovery in an arid basin (Las Vegas Valley, USA)  

NASA Astrophysics Data System (ADS)

The Las Vegas Valley Water District in Nevada, USA, has operated an artificial recharge (AR) program since 1989. In summer 2001, observations of gas exsolving from tap water prompted a study that revealed total dissolved gas (TDG) pressures approaching 2 atm with a gas composition that it is predominantly air. Measurements of TDG pressure at well heads and in the distribution system indicated two potential mechanisms for elevated TDG pressures: (1) air entrainment during AR operations, and (2) temperature changes between the winter recharge season and the summer withdrawal season. Air entrainment during pumping was investigated by intentionally allowing the forebay (upstream reservoir) of a large pumping station to drawdown to the point of vortex formation. This resulted in up to a 0.7 atm increase in TDG pressure. In general, the solubility of gases in water decreases as the temperature increases. In the Las Vegas Valley, water that acquired a modest amount of dissolved gas during winter artificial recharge operations experienced an increase in dissolved gas pressure (0.04 atm/°C) as the water warmed in the subsurface. A combination of air entrainment during AR operations and its amplification by temperature increase after recharge can account for most of the observed amounts of excess gas at this site.

Solomon, D. Kip; Cole, Erin; Leising, Joseph F.

2011-02-01

500